US1631674A - Machine for working cylindrical members of fusible material - Google Patents

Machine for working cylindrical members of fusible material Download PDF

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US1631674A
US1631674A US69139A US6913925A US1631674A US 1631674 A US1631674 A US 1631674A US 69139 A US69139 A US 69139A US 6913925 A US6913925 A US 6913925A US 1631674 A US1631674 A US 1631674A
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rod
members
lever
prehensile
shaft
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US69139A
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Favre Pierre Andre
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    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00Re-forming shaped glass
    • C03B23/04Re-forming tubes or rods
    • C03B23/11Reshaping by drawing without blowing, in combination with separating, e.g. for making ampoules
    • C03B23/118Apparatus for conveying the tubes or rods in a horizontal or an inclined plane through one or more forming stations

Definitions

  • Its object elliore' is to chines such that they an various requirenients o't It consists cl "y in providing machines of the type in q estio'n with prehensile nieinbers adapted to seize at a number of equidistant points and to'hcld the t drical member to be worked c s, they are int'endc fl for e inple'to' carryout work upon a glessrod in order to ina'he serum bulbs also coinpri means which are automatic or otherwise such th- (1)" the glass is so'i'tened over-a pro in each of the spaces comprised between the prel'iensile members, the number otwhich i'n'enibers a itunction of that of the bulbs which the same glass rod may provide; (2) the prehensile inenibers are spaced equal distances apart iroin' the centre of the arra'ngen'ient they "term; drawing out the soi
  • Each comprises two plates perpendicularto the said axis guided by one or more sliders 8 parallel to the latter.
  • the plates are freely i tewards their lower part by the v at l towards their upper part two cylindrical apertures facii'ig each other and between which a ring 9 is adapted to turn;
  • dead point produced by the broken part of the ring means adapted to a l'l'ow the prehensileineinbers" 7 to'be moved to either side of the centre of the arrangement they form by amounts which Vary but which are eqiieil for eii'eli; position the said nieai'is beiiigj formed advantageously by making use of toggle levers the joints of which, where the branches cross, are formed by vertical. pins'l6 fixed respectively to the lower part of the prehensile meinliiers 7 and having their ends actuated .in a manner indicated hereinafter by two racks l7 and 18 respectively, which racks are parallel.
  • a hand controlling lever 19 with two arms pivoted to a fixed shaft 20, one of the arms of which in the form of a segment is adaptedto raise one of the arms of a lever 21 also pivotally connected to a fixed shaft 22; a rod 23 connecting the lever 21 to a ratchet wheel 24 by means of an arm 25; (6) an inclined surface 26 upon which slide two endless chains 27 adapted to be driven by a shaft 28 upon which is fixed the ratchet wheel 24, the chains being provided with teeth between which are held the glass rods 12 the whole in such a way that the teeth are successively brought above the grooves in the prehensile member 7 and that each glass rod falls at each operation in the said grooves; (7) a lever 2-9 ( Figure 3) actuated by the lever 19 in the second part of its stroke by means of a broken ring 30, which is connected to a double arm 31 which is pivotally connected
  • each of these shafts 45 having loosely mounted upon them a toothed wheel 46 engaging with the wheel 43 and attached to them a toothed wheel 47, the two wheels 47 engaging with the racks; two other toothed wheels of the same diameter being arranged as shown in Fig. l
  • a clutch sleeve (14) a pivoted lover arranged in such a way that the lel thand rack by striking against it acts upon the bell device ll) connected] by a pivoted link mechanism to rod cnding'in a fork 53 engaging overthe beltfi and then cliects the disengagement ol the shaft 2;
  • a sort of locking device adapted to enable, when the disengagement of the shaft 2 has been completed, this shaft to be rendered stationary in the position for which the rings 9 are placed as shown in Figure 2; this locking device is formed by a pivoted lever 54 (l ig'.
  • This lever acts in the first half of its stroke upon the lever 21' which, through the medium o'lithe members 23 and 25 causes he a tractiono'i a turn which produces a forward movement of the endle chains 27 which allow a glass rod to' fall in the'groovcs in the pr'ehensile members 7; the sector of the lever 19- their ceases to' act upon thedistrilniting device and holds it in'the position in which it is when the rod has fallen, andfin'th'e second halt of its stroke the lever acts upon the lever 29 which, through the medium of the member 31' compels theglassfrod to enter 'betvrcei'r the claws otthe prehensile members 7 (inserting device).
  • the lever l fl'is'then releasedand returns to its original positionunder tlieaction of suitable SlJ'l'lflQFlSllCll as theone shown in Figure'l.
  • the distributing device andthc ins 'rtin device return in their turn to their original position.
  • This lever 38' drives the shaft 33' and the sleeve 34' the elliect of which isto':
  • the glass rod' is then-heated atthe suitable parts comprised between the prchensile members 7.
  • blow pipe device moves ver opens, the effect of which is to cause the prehensile members 7 to move away from each other and consequently the softened parts of the glass rod comprised between the said prehensile members to be drawn out.
  • the lever 59 is lowered the etlect oi which is, by means of the extraction device 60 to 6.), to remove the glass rod from the claws oi the arms 10 and to carry the chain of bulbs upon the inclined surface upon which it rolls as far as the fixed branches 74- ot the scissor lovers which stop it in order to cut it in the following wheel 4.? which sets upon the racks and brings them towards each other, thus closing the toggle levers while bringing as a consequence the prehensile members 7 towards each other to the points at which they were before being separated.
  • the machine thus constructed may operate with only the hand control members. But it is clearly understood that these members may be replaced by automatic means which would obviate wholly or in part the necessity for these hand controls, for example by means of a wheel provided with suitable cams which would be arranged on its periphery, a single turn of which wheel would produce in succession the operations enumerated above, the cams raising levers similar to thesedescribed which are moved by hand.
  • the drive may be for example electromechanical pneumatic, or hydraulic.
  • each prehensile member described may bereplaced by a prehensile member of another type, for example by the one shown in Figure 4.
  • This other prehensile member comprises two wheels 81 upon which can rest freely a glass rod 12 which has passed through grooves provided for the purpose formed in the plates of the said prehensile member, the said wheels being driven, for example, by friction, rotating in opposite direction, by means of a wheel which slides by means of a long key upon the-shaft-2.
  • the glass rod having once been placed upon the wheels 81 is held there by the pressure of another wheel 83 fixed to a pivoted lever 84.
  • each lever 66 may be employed, itself or a similar lever, on the first prehensile member as well as on the second so as to exert, upon a corresponding given portion of the glass which has been previously softened, a pressure which during the drawing out operation is adapt-ed to cause the portion which is drawn out to be narrowed.
  • the bulbs are obtained at the same time upon one single glass rod. These bulbs are cylindrical with two points and may comprise a contraction on each of their drawn out portions. which contraction is provided so'that bulbs with a flat end and a contraction may be obtained with another. machine conjugated with the present one.
  • a machine of the class described comprising in combination gripping means for holding a rod of fusible material at a plurality of points, means for heating said rod intermediate said points, means for moving said gripping means so as to draw the fusible material and means for cutting the rod.
  • a machine of the class described comprising in combination gripping means for engaging a rod of fusible material at at least three points, means for heating said rod intermediate said points, means for moving the. gripping means while maintaining equal distances between the points at which it engages the rod, and means for cutting the rod at a plurality of points.
  • a machine of the class described comprising in combination at least three members arranged so to grip a rod at a corre sponding number of points, means for heating a rod in the spaces between the prehensile members, means for movingthe prehensile members while maintaining equal distances between them and means for cutting the rod at a plurality of points.
  • a machine of the class described com prising in combination at least three prehensile members adapted to seize a rod a corresponding number of points, means for heating said rod in the spaces between the prehensile members, means for moving the prehensile members longitudinally with re-. spect to the axis of the rod, means for cutting the rod, means for removing said rod from said prehensile members, means for moving said prehensile members back to their initial position and means for placing a new rod in position to be held by the prehensile members.
  • a machine of the class described comprising in combination at least three prehensile members arranged'to seize a rod at corresponding number of points, means for heating said rod in the spaces between the prehensile members, means for moving said prehensile members while maintaining equal distances between them, means for removing said rod from the prehensile members, means for moving the prehensile members back to their original position, means for placing a new rod in position tobe held by the prehensile members, and means for cutting the rod.
  • a machine of the class described comprising in combination at least three prehensile members arranged to seize a rod of fusible material at a corresponding number of points, means for heating said rod at at least two points, and means for moving said prehensile members in a longitudinal direction with respect to the rod axis.
  • a machine of the class described comprising in combination at least three prehensile members arranged to seize a rod of fusible material at a corresponding number of points, means for heating said rod at at least two points located between the prehensile i'nembers and means operable to move the prehensile members longitudinally with respect to the rod axis while maintaining equal distances between said prehensile members.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)

Description

1,631,674 J 1927- P. A. FAVRE MACHINE FOR WORKING CYLINDRIGAL MEMBERS OF FUSIBLE MATERIAL Filed Nov. 14. 1925 3 Sheets-Sheet 1 Invent-v) P. A. FAVRE June 7, 1927.
MACHINE FOR WORKING CYLINDRIGAL MEMBERS OF FUSIBLE MATERIAL Filed Nov. 14. 1925 5 sheets sheet 2 June 7, 1927. 1,631,674
P A. FAVRE MACHINE FOR WORKING CYLINDRICAL MEMBERS OF FUSIBLE MATERIAL Filed-Nov. 14. 1925 s SheetsSheet 5 RC0 7a2/re "yen-tor Patented June 7, 19 27 eerrso STATES, PATENT-OFFICE.
PIERRE ANDRE FAVRE, or ceases; FRANCE.
MACHINE FOR WORKING oYLi'immoA MEMBERS: OF'VFUSIBLE MATERIAL.
Application filed November 14, 1925, Serial No; (9,139, and Belgium December 19 1924.
The ii'ivention r 'chinei-i for working cylindrical inc ibers of Y, '7 313 inaterial, and itn'iore particularly reiates to those for making serum bulbs from glass tubes or rods.
Its object elliore' is to chines such that they an various requirenients o't It consists cl "y in providing machines of the type in q estio'n with prehensile nieinbers adapted to seize at a number of equidistant points and to'hcld the t drical member to be worked c s, they are int'endc fl for e inple'to' carryout work upon a glessrod in order to ina'he serum bulbs also coinpri means which are automatic or otherwise such th- (1)" the glass is so'i'tened over-a pro in each of the spaces comprised between the prel'iensile members, the number otwhich i'n'enibers a itunction of that of the bulbs which the same glass rod may provide; (2) the prehensile inenibers are spaced equal distances apart iroin' the centre of the arra'ngen'ient they "term; drawing out the soi tened parts of the rod; the rod is cut at the drewn-out por ions and this is either render these ma- Q va'v l I" t 1 Mei oettei 0 he ndustrial practice.
done while the/said rod is in the prch'ensile i'ne'nibers or after it has been withdrawn from them; (45) the said rod, having been either only drawn out or drawn out andcut oil, may be ren'ioved from the prehensile nien'i'bers; the latter are returned to their original positions; ((3) a new glass rod may be introduced into the said pie hensi'le' members. i
It consists, apart from this main arrangement in certain ether arrzrngeinents which are employed preterably at the same time and are described more illy hereinafter.
The invention will more clearly be understood 11'0111 the description hereinafter given in connection with the Accoi'npanying diagrainina'tic drawings which description and teri'nined" part The iiiachi'ne consists of the foll'oWing't-,
A frame 1 of suitable form to serve as upport tor the members enumerated below; a horizontal shaft 2 join-nailed longiupon which are mounted fixed lleys-B and loose pulleys 4:, with a belt; 5 driven by a motor 6 which is' preferablyeled tric; (2) as many equidistant preh'e'nsi'le member's plus 2; the glass rod cangive bulbs, with parts of internal diameter equalto the external diameter of the body of these bu bs, which prehensil'e members 7 are air is ged at the same height in plane's p er'pe'n dicular to the'aXi's "of the shaft 2 Each comprises two plates perpendicularto the said axis guided by one or more sliders 8 parallel to the latter. The plates are freely i tewards their lower part by the v at l towards their upper part two cylindrical apertures facii'ig each other and between which a ring 9 is adapted to turn; The ring 9 is provided with two arris'li') pivoted to it by one of their ends l 'aci'edu'pon by a' spring 11 which tends t'o-dir'ec't the one towards the other, and their" other ends towards the axis of the ring} the whole being such that the prehen sile members 7 being assumed to be in place, the glass rod 12 may be made to enter from the top and be held betweenthe free arms 10 in the position for which it saxis and that of the ring coincide with each other, by forming in the upper part of the plates, grooves which are sufficiently large to'allow the rod to pass; by breitkingthe ring 9"; by arrang= ing; for the red 12 after it has entered into the grooves in the plates, to pass between the arms 10 j and terminating the said arms by claw members adapted to seize the red when it is coaxial with the said ring; a means adapted to allow a movement of ret'stion at predetermined speed to be transmitted by means of the r ot atable'shaft 2 to the 9; for example by mounting upon" the shaft 2 for each prehensrle member toothed wheel 13, forming, with the ring 9 a broken toothed wheel of the same dia 'inet'er' as the wheel ISand in connecting these two toothed wheels together by as man toothed wheels 14- as are necessary to overcome the.
dead point produced by the broken part of the ring; it means adapted to a l'l'ow the prehensileineinbers" 7 to'be moved to either side of the centre of the arrangement they form by amounts which Vary but which are eqiieil for eii'eli; position the said nieai'is beiiigj formed advantageously by making use of toggle levers the joints of which, where the branches cross, are formed by vertical. pins'l6 fixed respectively to the lower part of the prehensile meinliiers 7 and having their ends actuated .in a manner indicated hereinafter by two racks l7 and 18 respectively, which racks are parallel. to the axis of the shaft 2, it being understood that the racks may be replaced by links acting upon the toggle levers, that the prehensile members 7 may be actuated separately by means of members actuated by cone pulleys, that each prehensile member may be displaced by. a
rack, the different prehensile members hemg actuated by gearings of differentdi ameters by compressed air pistons; (5) a hand controlling lever 19 with two arms (Fig. 3) pivoted to a fixed shaft 20, one of the arms of which in the form of a segment is adaptedto raise one of the arms of a lever 21 also pivotally connected to a fixed shaft 22; a rod 23 connecting the lever 21 to a ratchet wheel 24 by means of an arm 25; (6) an inclined surface 26 upon which slide two endless chains 27 adapted to be driven by a shaft 28 upon which is fixed the ratchet wheel 24, the chains being provided with teeth between which are held the glass rods 12 the whole in such a way that the teeth are successively brought above the grooves in the prehensile member 7 and that each glass rod falls at each operation in the said grooves; (7) a lever 2-9 (Figure 3) actuated by the lever 19 in the second part of its stroke by means of a broken ring 30, which is connected to a double arm 31 which is pivotally connected, one of the ends of which arm supports a rod 82 which when actuated exerts a suflicient pressure upon the glass rod 12 which has previously fallen in the grooves of the prehonsile members 7 and compels it to enter the claws of the arms 10 and to take up a correct position even if the glass rod is not quite straight; (8) a horizontal shaft 33 journalled in the frame in a direction. which is parallel to the shaft 2 and upon which are mounted, fixed to it, a sleeve 34 integrally attached to the arms 35 and 36 connected in such a way, one to the key 37 l of a gas tap, the other to that of an air tap (hidden by the first one) that when the said arms are raised the said taps are opened and vice versa; an operating lever 38 allowing this sleeve to be rotated in the manner indicated above; another sleeve 39 (Figures 1 ant 2) provided with a lever connected to a bell device 40 which this lever brings back into its original position when the sleeve 34 is raised by means of the hand lever 36, the action of the sleeve 33 upon the sleeve 39 being only exerted in one direction, the one mentioned above; (9) as many blow pipes 41 with as many blow burners for these blow pipes as there are spaces between the prehensile members '7, the burners being interposed each at an. equal distance from two prehensile members, pivotally connected to the frame and controlled by sets of lovers 42 themselves controlled by the lever 38 and the shaft 33 so that the said blow pipes may be displaced normally towards the. axis of the rod which is assumed tov be in place in the said prehensile members, which blow pipes may be lighted or extinguished by opening or closing the channels or carburant or air by oscillating'the controlling lever 38 in one direction or the other; (10) a toothed wheel 43 mounted upon a shaft 44 (Fig. l) and journalled perpendicularly to the axis of the shaft 2 and rotated continuously by the motor 6 tirough a system of belts and corresponding pulleys suitably arranged to provide the necessary reduction in speed; (11) two shafts 45 parallel to the axis of the wheel 43 and journalled in the frame symmetrically relatively to the vertical plane passing through the said axis to the left and to the rightof the said plane (assuming in the fol lowing description that the left and the right of the machine are understood for everything which is shown in Fig. 1 when it is looked at from the front to the left and to the right of the said plane), each of these shafts 45 having loosely mounted upon them a toothed wheel 46 engaging with the wheel 43 and attached to them a toothed wheel 47, the two wheels 47 engaging with the racks; two other toothed wheels of the same diameter being arranged as shown in Fig. l
to the right and to the left of the wheels 46,
connected by reduction gearing to the shafts 45 which rotate them at half speed, which additional wheels are adapted in the case when the machine comprises a very large number of prehensile members to act upon other racks which actuate the toggle levers to which they would be connected, on each side and at a point equi-distant from the corresponding end of the said levers and of their central axis, which arrangement coi'nes under those mentioned above with reference to the various methods of extension of the levers; a means adapted to render the righthand toothed wheel 46 integral with its shaft 45 which may be obtained in various ways for example, by making use of an ordinary sleeve clutch 48, with a return spring.- 49 adapted to be driven in translational motion by one of the ends of a pivotedhand lever 50 this lever having the function in one direction alone (the one in which it is lowered) of impressing a fraction, of a turn upon the shaft 33 by means of a stud and in doing this of lowering the lever 38 and its integrally attached sleeve 34 which have been previously raised; a means adapted to enable the same result to be obtained for the lefthand toothed wheel 46 but at other moments than for the righthandwheel 46 which result may be obtained in a similar way, that is to say with a pivoted lever 51 (Fig. l) and a clutch sleeve (14) a pivoted lover arranged in such a way that the lel thand rack by striking against it acts upon the bell device ll) connected] by a pivoted link mechanism to rod cnding'in a fork 53 engaging overthe beltfi and then cliects the disengagement ol the shaft 2; (15) a sort of locking: device adapted to enable, when the disengagement of the shaft 2 has been completed, this shaft to be rendered stationary in the position for which the rings 9 are placed as shown in Figure 2; this locking device is formed by a pivoted lever 54 (l ig'. 1) connected to the bell device ll) in such a way that when it is driven b the rodding it puts under tension a spring attached to a device 56 provided with an arm which then exerts a slight pressure upon a ring attached to the shaft 2 and in which is termed a notch in which lodges the arm 5'7 as soon as the shalt by turning brings the said notch opposite the said arm; (16) a hand controlling lever 59 connected by pivoted links 60 and 61 to an arm 62 integrally attached to a shaft 63 journalled in the frame parallel to the shaft 2; the shaft 623 is therefore also rendered integral with a member carryinga rod 6st parallel to the shaft 2 running thewhole length o1 the prehensile members 7 and adapted when the lever 59 is loweredto encounter an arrangement of levers 65 and66wi'th link 66 interposed (an arrangement by prehensile members) pivoted to two fixed shafts'68' and 68 and to cause it to oscillate in sucha way that each lever 66-which terminates in akind of shuttle 69 itself of such aform-then engages its shuttle between the claws of the corresponding arms 10, opens them out, raises the glass rod 1:2 (once the latter as hereinafter shown has been drawn out) and carries it upon an inclined surface 70 where it rolls; each arrangement of levers G5 and (3 once it has acted in this way isreturned to its original position by the a'ctionof a rod 71. parallel to the preceding one and of the same length integrally attached to a shaft 72 journalled in the frame and connectedto the shalt 63 by a set of pivoted levers 78,
sucn that when the controlling lever 59'is raised the said rod 71p'resses upon the levers (35 causing the shuttles (39 to pass between the claws 10 in the opposite direction to the preceding one; (17) a lever device of which for each pair, one of the branches 74 is attached to the inclined surface 70 and the other movable one 7 5 is" niounted'upon a shaft 76 journalled in the frame parallel to the'sha-i't 2- and controlled by the shaft 33 to which it is connected by an arrangement of pivoted levers and links 77, 78 and 79; (-18) and-a travelling band 80 which receives its movement from a suitable'arrangement of belts.
the ratchet wheel 24 to Inn The machine thus formed and suitably mounted} operates as follows:
\Vitih one finger of the lett'hand' the controllinglever 19 ispulled and lowered (this lever as well as theother controlling levers being arranged so that they can easily be operated, as hereinafter described, when tac ing: the machine).
This lever acts in the first half of its stroke upon the lever 21' which, through the medium o'lithe members 23 and 25 causes he a tractiono'i a turn which produces a forward movement of the endle chains 27 which allow a glass rod to' fall in the'groovcs in the pr'ehensile members 7; the sector of the lever 19- their ceases to' act upon thedistrilniting device and holds it in'the position in which it is when the rod has fallen, andfin'th'e second halt of its stroke the lever acts upon the lever 29 which, through the medium of the member 31' compels theglassfrod to enter 'betvrcei'r the claws otthe prehensile members 7 (inserting device).
The lever l fl'is'then releasedand returns to its original positionunder tlieaction of suitable SlJ'l'lflQFlSllCll as theone shown in Figure'l. The distributing device andthc ins 'rtin device return in their turn to their original position.
' he came llllfitl', the let-t o e',- which operates the lever l9,' seizes the controlling lever 38 and raises it in order to rotate it through 90 about'its axis.
This lever 38' drives the shaft 33' and the sleeve 34' the elliect of which isto':
l. Actuate the scissor device in such a way that" the movable branches of these levers close upon the fixed branches T l and out the slender portions which connect bulbs together in the chain termed in the preceding operation; the bulbs which are detached from each other then roll upon the inclined surface 70 to the travelling band which. carries then tonne end ol the machine wlu-n'ethey are"collectenin a box provided for tlepurpose; V
2. Openby means ol? the arms" and the'gas and air taps which supply the blow pipes' l'l;
3. Actuate by means of the sleeve 39 the the belldevice l0 in-the direction in' wliichtlie belt 5 pass roin'the loose pulley4 to the fixed pulley 3; I
l. Remove the arm 5'? from its engagement in the notch on the ring; 58;
5. Bring; the blow pipe device into p The blow pipes act. the shaft 2 is rcleae d and turns,transmitt ng: its rotation to the glass rod 12 through the medium of the gears 13, 14 and thetoothed-ring9.
The glass rod'is then-heated atthe suitable parts comprised between the prchensile members 7.
Assoon as the parts have reached thedesired degree of fusion the operating lever is lowered with the right hand.
The action O'i this lever is as follows:
1. It causes the shalt 33 to make a partial revolution of 90 in the opposite direction .to that in which it is moved when the lever ,88 is raised and in making this movement it closes the gas and air taps .sothat the blow pipes are extinguished the pilot flames alone remaining; alight :tor a subsequent operation.
2. It causes the blow pipe device to move ver opens, the effect of which is to cause the prehensile members 7 to move away from each other and consequently the softened parts of the glass rod comprised between the said prehensile members to be drawn out.
Before arriving in this extreme position which enables the prehensile members to be displaced, the left hand rack. by means of the lever 52 and the pivoted link mechanism of which mention has been made, engagesthe belt 5 upon the loose pulley 4 the effect of which is to stop the shaft 2 and by means of the locking device the said shaft 2 to be rendered stationary in the position for which the ring 9 is arranged as shown in Figure 2.
lVhen the racks reach their extreme posi tion. the pressure of the hand upon the lever 50 must cease.
The necessary time is allowed for the glass to cool down.
Then. with the left hand, the lever 59 is lowered the etlect oi which is, by means of the extraction device 60 to 6.), to remove the glass rod from the claws oi the arms 10 and to carry the chain of bulbs upon the inclined surface upon which it rolls as far as the fixed branches 74- ot the scissor lovers which stop it in order to cut it in the following wheel 4.? which sets upon the racks and brings them towards each other, thus closing the toggle levers while bringing as a consequence the prehensile members 7 towards each other to the points at which they were before being separated.
And a next operation is commenced.
The machine thus constructed may operate with only the hand control members. But it is clearly understood that these members may be replaced by automatic means which would obviate wholly or in part the necessity for these hand controls, for example by means of a wheel provided with suitable cams which would be arranged on its periphery, a single turn of which wheel would produce in succession the operations enumerated above, the cams raising levers similar to thesedescribed which are moved by hand.
The drive may be for example electromechanical pneumatic, or hydraulic.
Further, each prehensile member described may bereplaced by a prehensile member of another type, for example by the one shown in Figure 4.
This other prehensile member comprises two wheels 81 upon which can rest freely a glass rod 12 which has passed through grooves provided for the purpose formed in the plates of the said prehensile member, the said wheels being driven, for example, by friction, rotating in opposite direction, by means of a wheel which slides by means of a long key upon the-shaft-2.
The glass rod having once been placed upon the wheels 81 is held there by the pressure of another wheel 83 fixed to a pivoted lever 84.
For the remainder: the distribution of the glass, extraction, cutting, etc, the method of procedure will be the same as with'the preceding prehensile member, these pro-hensile members only differing from each other in the manner in which the glass rod is held and made to turn.
It is understood that each lever 66 may be employed, itself or a similar lever, on the first prehensile member as well as on the second so as to exert, upon a corresponding given portion of the glass which has been previously softened, a pressure which during the drawing out operation is adapt-ed to cause the portion which is drawn out to be narrowed.
As it is seen, whatever he the arrangenilent adopted the bulbs are obtained at the same time upon one single glass rod. These bulbs are cylindrical with two points and may comprise a contraction on each of their drawn out portions. which contraction is provided so'that bulbs with a flat end and a contraction may be obtained with another. machine conjugated with the present one.
It goes without saying and it also is clear from the above description that the invention is not limited in any way to this of its 'methods of application nor to those of the forms of construction of its various parts which have been more particularly described above; it includes on the contrary all modi fications, for instance those in which, in order to obtain the various operations of which mention has been made, the members adapted to produce this result would be differentand a ranged in difierent ways from those which have been described.
What I claim is:
1. A machine of the class described comprising in combination gripping means for holding a rod of fusible material at a plurality of points, means for heating said rod intermediate said points, means for moving said gripping means so as to draw the fusible material and means for cutting the rod.
2. A machine of the class described comprising in combination gripping means for engaging a rod of fusible material at at least three points, means for heating said rod intermediate said points, means for moving the. gripping means while maintaining equal distances between the points at which it engages the rod, and means for cutting the rod at a plurality of points.
A machine of the class described comprising in combination at least three members arranged so to grip a rod at a corre sponding number of points, means for heating a rod in the spaces between the prehensile members, means for movingthe prehensile members while maintaining equal distances between them and means for cutting the rod at a plurality of points.
i. A machine of the class described com prising in combination at least three prehensile members adapted to seize a rod a corresponding number of points, means for heating said rod in the spaces between the prehensile members, means for moving the prehensile members longitudinally with re-. spect to the axis of the rod, means for cutting the rod, means for removing said rod from said prehensile members, means for moving said prehensile members back to their initial position and means for placing a new rod in position to be held by the prehensile members.
5. A machine of the class described comprising in combination at least three prehensile members arranged'to seize a rod at corresponding number of points, means for heating said rod in the spaces between the prehensile members, means for moving said prehensile members while maintaining equal distances between them, means for removing said rod from the prehensile members, means for moving the prehensile members back to their original position, means for placing a new rod in position tobe held by the prehensile members, and means for cutting the rod.
6. A machine of the class described comprising in combination at least three prehensile members arranged to seize a rod of fusible material at a corresponding number of points, means for heating said rod at at least two points, and means for moving said prehensile members in a longitudinal direction with respect to the rod axis.
7. A machine of the class described comprising in combination at least three prehensile members arranged to seize a rod of fusible material at a corresponding number of points, means for heating said rod at at least two points located between the prehensile i'nembers and means operable to move the prehensile members longitudinally with respect to the rod axis while maintaining equal distances between said prehensile members.
In testimony whereof I have signed my name to this specification.
PIERRE ANDRE FAVRE.
US69139A 1924-12-19 1925-11-14 Machine for working cylindrical members of fusible material Expired - Lifetime US1631674A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2523006A (en) * 1944-01-03 1950-09-19 Gen Electric Glass tube reshaping apparatus
US2680331A (en) * 1952-09-29 1954-06-08 Frank J Cozzoli Sealing apparatus
US2835079A (en) * 1953-06-30 1958-05-20 Westinghouse Electric Corp Tubular lamp bulb machine
US3105753A (en) * 1958-05-14 1963-10-01 Johnsen Jorgensen Plastics Ltd Fixture for stretch severing of glass tubes

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2523006A (en) * 1944-01-03 1950-09-19 Gen Electric Glass tube reshaping apparatus
US2680331A (en) * 1952-09-29 1954-06-08 Frank J Cozzoli Sealing apparatus
US2835079A (en) * 1953-06-30 1958-05-20 Westinghouse Electric Corp Tubular lamp bulb machine
US3105753A (en) * 1958-05-14 1963-10-01 Johnsen Jorgensen Plastics Ltd Fixture for stretch severing of glass tubes

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