US1585896A - Bar and tubing severing means - Google Patents

Description

May 25 1926.

e IVR o o "N" A o @IUI BR AND TUBING SEVERING MEANS E. DANNER 5 Sheets-Sheet 2 Filed' August 7, 1922 WI" y Il." I l "pli l May 25 1926. 1,585,896

- E. DANNER BAR AND TUBING SEVERING MEANS Filed August 7, 1922 5 Sheets-Sheet 5 May 25 1926.

E. BANNER BAR AND TUBING SEVERING MEANS Filed August '7; 1922 f 5 Sheets-Sheet 4 w m .mi W

May 25 1926. v 1,585,896 E.DANNER BAR AND TUBING SEVERING MEANS Filed Augusty '7, 1922 5 Sheets-Sheet 5 llll/l 7 TNVENTDEL Patented May Z5, 19g/6.

-UNITED STATES 1,585,896* PATENT OFFICE.

EDWARD DANNER, OF TOLEDO, OHIO,` ASSIGNOR TO LIBBEY GLASS COMPANY,

F TOLEDO, OHIO, A CORPORATION OF OHIO. I

BAB AND TUBING SEVERING- MEANS.

Application led August 7, 1922. Serial No. 580,037.

This invention relates to bar or tube severing means for use more particularly in con neotion with apparatus for continuously forming molten material, such, for instance,

as glass, into cane or tubing and adapted to sever the cane or tubing into predetermined lengths at a distance from the forming apparatus.

In my former United States Letters Patent No. 1,220,201, dated March 27, 1917, I 4show a severing mechanism having a reciprocatory form of cutter which moves lengthwise of the material being severed or scored while acting thereon and then returns to engage the material so that the material is scored or weakened at predetermined points lengthwise thereof as passes along. This machine is satisfactory in its operation when operating on material t not moving at too rapid a speed. It is found, however, that ifthe speed of movement of the material is much over 200 feet aminute, the severing or scoring means must reciprocate so rapidly as to cause vibration, thereby rendering its use objectionable.

The object of the presentinvention is the ,provision of a simple, durable and efficient severing or scoring means of the class described which is adapted tov operate on material feeding or moving at a very high speed without causing objectionable jar or vibration. s

A further object of the invention is the provision of simple, efficient and novel means for effecting a lateral bending or deflection of the material acted on after a scoring operation to effect a breaking 0E of the material at the scored or weakened point.

Further objects andr advantages of the indetailed description thereof.

While the invention in its broader aspect is capable of embodiment in numerous forms,

a preferred embodiment' thereof is illus:

vention will be apparent from the followin section. Fig. 5 is a front end elevation of 55 the machine vwith the scoring unit in scoring position. Fig. Gis an enlarged section taken on substantially the line 6-6 in Fig. 5, with parts in full. Fig. 7 is an'outer end elevation of the scoring head showing by dotted lines its position when first moved into scor-y ing contact'with the material. Fig. 8 is an enlarged elevation of the cam means for controlling the vertical rocking movements of the scoring unit. Fig. 9 is a central vertical section of the material breaking off unit taken on the line 9-9 in Fig. 1 with parts in full. Fig. 10 is a vertical section thereof taken on the line 10-10 in Fig. 1, and Fig. 11 is an outer side elevation of said`unit slightly modified to provide a different form of deecting or breaking olf means for the material.

Referring to the drawings, 1 designates the frame of the apparatus, which frame is preferably in the form of a platform. Two bearings standards 2 and 3 rise in spaced relation from the frame at a Side thereof, the rear standard having a pair `of stub shafts 4 projecting therefrom in vertically spaced relat1on and carrying upper and lower sprocket Wheels 5, and the forward standard having upper and lower bearing shafts journaled therein and car ing vertically spaced sprocket wheels 8. Tle sprocket wheels 5 and 8 of each set are connected by feed chains 9, the upper flight of one cooperating wi'th the lower fiight of the other to grip and impart a forward feeding movement to the work bar or tube a passing therebetween. v

Each shaft 6 and 7 extends crosswise of the frame 1 and is journaled at one end in a bearing 10 and each carries a gear 11 at such end, which gears are of like size and in mesh to cause a driving of one shaft from the other. A gear 12 on 'the shaft 7 is in mesh with and driven by a gear 13 on a shaft journaled in suitable bearings at a side of the shaft 7 and carrying a large gear 14, which is in mesh with and driven by a `pinion 15 on tlie shaft of a motor 16 that is mounted on the platform 1. No novelty is claimed for this work feedinlgl means as it is substantially the same as s own and de, scribed in my said former atent. It will be understood that the worli) bar or tube a passes from its forming source to and be.

asses throu h a Guide 17 thence betweeira. P g e pair of horizontally spaced guide rolls 18 over a yielding table or supporting member 19, and thence through awforward guide 2Q"- into position to be engaged by the breaking off unit which is mounted at the forward end of the platform.

The work scoring` or weakening means,a which is intendedto act at predetermined' spaced points on the work, and in which one of the features of the present invention resides, will now be described. A shaft 21 is journaled lengthwise of the frame 1 in standards 22 rising therefrom 'and is in driven connection at its rear end with one of the shafts 6, 7, the latter in the present instance, through a pair of gears 23, a shaft 23a and a set of bevel gears 23h. A table 24 is loosely mounted on the forward end portion of the shaft 21 over or in straddling relation to the forward bearing 22 to permit a vertical rocking of the table relative to the shaft 21 and platform 1. A shaft 25 is journaled in the under side of the table 24 substantially longitudinally of the table and projects from adjacent to the shaft 21 to which it is connected by a set of bev'el gears 26 toward the adjacent side of the work a. A cam wheel 27 is lixedly mounted on the shaft 25 and is engaged at its under side by a supporting roll 28, which is carried by the upper forked end of a stem 29 that is mounted for vertical adjustment in a bearing bracket 30 projecting from a Iside of the forward bearing standard 22. The stem 29 is threaded in a nut which is rotatably carried by the bracket 30 and this nut is in beveled gear connection with a control shaft 31 to which a crank orf wrench may be fitted to effect a turning of the'same when it is desired to vertically adjust the stem. It is evident that the engagement of the roll 23 with the cam 27 supports the table 24 in propor position and that at each rotation of the cam 27 predetermined raising and lowering movements are imparted to the cam 27, which is turn imparts a corresponding rocking movement tothe table 24. The weight of the table and parts carried thereby retains the cam wheel in engagement with the supporting roll. y

A motor 32 is mounted on the rear end portion of the table 24 and has its motor shaft 33 mounted in and projecting through a bearing 34 rising from what may bc termed the forward end of the table or the end thereof adjacent to the work a. The shaft 33 is preferably provided with a flexib'le joint 35 between the motor and bearing. A bushing 36 (Fig. 4) is mounted on the shaft 33 and extends into the bearing 34, and a hub sleeve 37 is mounted on the forward-end -of this bushing and has collars 38 and 39 thereon, the former being disposed at the forward end of the bushing and Y,being .removable to permit a removal of the The hub hub sleeve from the bushing. sleeve 3G' at' its forward end carries a circular head 40 forming a gear case 4l therein and has an entrance opening which is closed by-.a removable plate 42.

lThe gear case 41, in the present instance, is'of:- L-form and enclose's a train of gears which connects the shaft 33 with a crossshaft 43 journaled centrally in the circular head 40 and carrying a scoring d isc or wheel 44 within the head. `An edge of the wheel 44 projects slightly from an edge of the head through an opening therein, which is disposed at one side of the axis of the shaft 33. The gear train, in the present instance, comprises a pair of mitre gears 45, which connect the shaft 33 with a pinion 46, which in turn drives a pinion 47 in mesh with a pinion 43 fixed to the shaft 43. The pinion 46 and 47 are mounted on suitable shafts provided in the gear case 41 in paralell relation to the shaft 43. The axis of the scoring wheel 44 intercepts the axis of the shaft 33 in advance thereof, and the scoring wheel is disposed centrally of the sides of the head 40 and in a plane common to an axial plane of the shaft 33, as best shown in Fig. 4. The side of the head 40 opposed to the gear case 41 is provided with a removable part 49 to facilitate access to the scoring wheel 44 and the removal or replacement thereof. The pressure of the scoring wheel 44 on the work may be varied by any suitable counterbalancmg weight, not shown, longitudinally of the-motor carrying end of the frame 24, such weight being carried by the frame for this purpose. In practice the scoringv wheel bears against the work at a pressure of four or five pounds. This pressure, however, may be varied as desired.

In order that the head 40 may be balanced with respect to its turning axis, the removable part 49 thereof is provided with chambers 50 for receiving a liquid or solid in sufficient quantity to counterbal-ance the weight. of the gearing and gear easing. The wheel 44 is provided with a hardened and removable circular blade portion which projects at its edge beyond the body portion of the wheel and through the edge opening in the head 40 for scoring coaction with the `work.

The shaft 25 carried by the table 24 is in permanent driving connection with the hub sleeve 37 of the head 40 through a pair of gears 51. It is thus evident that a rotation of the shaft 25 in addition to imparting predetermined rocking movements to the table 24 and parts carried thereby, through the medium of the cam wheel 27 and supportingl roll 28, also imparts rotation to the ead 40 and scoring wheel 44 about the aXis of the shaft 33 and in a 'plane parallel to the axis of rotation of the shaft 43 carrying the wheel. At the same time the driving action ofthe motor 32 imparts a rapid rotation to the shaft 33 and through the interposed train of gears to the scoring wheel. The turning of the head is so timed with respect to the vertical rocking movements of the tablel and head that the eX- posed work coacting edge of the scoring wheel will traverse a lower arc a, b (Fig. 7) of its movement during the last portion of each lowering movement of the head with the table 24.

Thel head 40 is disposed over the portion of the tube or cane a between the guides 17 and 20, and the normal line of travel of the work a is'in intercepting relation to the scoring edge of the wheel 44 when in its lowered position so that the wheel in lowering and turning into contact 'with the work will cause a lowering of the work and will have scoring coaction therewith throughout a predetermined portion of the arc a, 7) as'. illustrated in Fig. 7. The scoring wheel is driven yat a high speed so that an effective scoring or weakening of the work at the point of contact of the wheel therewith will take place during the period of contact of the wheel and work. It is evident that the turning speed of the head should correspond to the speed of feeding of the work a so that no slippage of th-e work lengthwise of the latter will occur duringa-scoring action;

It is also evident that the'vertical rocking of the table 24 and parts carried thereby may be so timed that the scoring wheel will have scoring coat-tion with the work at each rotation of the head 40 or once for each of a desired number of rotations ofthe head depending on the length of the sections into which it is desired to sever the work. y The work a is yieldingly supported below the point of contact therewith of the scoring wheel by the table 19 which is pivoted at one end to a support (Fig. 3) for limited vertical rocking movements and has its free end portion yie'dingly supported by an adjustable yieldable support 56, which is carriedA by the standard 55. I.

The breaking off means for the work a after each scoring operation, is carried by a frame part 1n at the forward end of the platform y1 and has a set. of opposed peripherally recessed engaging wheels 57 between which the work passes after leaving the guide 2() and which are vertically movable together at predetermined intervals relative to the guide 20 to imparta lateral breaking olf movement to the work. The wheels 57 are carried by respective upper and lower shafts 58 and 59, the former being mounted in a' bearing block 60 and the-latter lita bearing block 61. These bearing bloeks'are mounted for vertical reciprocatory movements in vertical guideways 62 provided in opposite sidesl of the frame 1a and are yieldingly spaced apart by interposed coiled compress on' springs 63, which act at one end against adjusting screws 64 carried by the upper bearing block 60. The lower bearing block 6l is yieldingly'supported by coiled compression springs 65 near opposite ends thereof and having their lower ends thrusts against members 66, which are threaded-for vertical adjustment inl lateraly projecting portions of a base member 67 of the frame 1. The springs 65 encircle guide stems 68 projecting down from the bearing block 61. It is thus evident that the blocks are yieldingly spaced by the lsprings 63 and are yieldingly supported bythe springs 65, the latter being weaker than the springs 63. 4The slide block 61- has shoulders 69 at opposite sides thereof adapted to have stop coaction with stop members 69a`on the frame 1a to limit the upward movement of the slide block.

A drivev shaft 70 for the operating parts of the breakingoft' mechanism is journaled in the frame base 67 and extends lengthwise of the frame 1 along one side of the interior portion thereof vand is connected by a set of bevel gears 71 (Figs. 2 and 8) to a countershaft 72 which is journaled in suitable bearings crosswise of the frame l and is in driven Vse connect-ion with the shaft 7 throu-gha set of spur gears 7 3. If it is desired to change the s eed of driving of the shaft 72 from the Is iaft 7 the gears-73 are disconnected and another set of gears 74 of different size are placed in mesh. A shaft 75 is vertically journaled in the frame 1a and its base 67 and is driven from the shaft 7() through a set of bevel gears 76 disposed within the frame base 67 (Fig. 9). shaft 7 5 has two spiral gears 77 splined thereon for axial movements on the shaft and one is disposed within a bearing portion 78 provided in the vertically movable block 6() and the other is mounted within a bearing portion 79 in the block 61. The upper gear 77 is in driving mesh with a spiral gear 80 on the shaft 58 and the lower gear is in driving mesh with a gear 81 on the shaft 59 so that a driving of the shaft 75 imparts rotation in unison to the shafts 58 and 59 and the feed wheels 57 carried thereby, the gear- "ing being such that the shafts are driven in opposite directions.

A lcam wheel 85 is mounted on the forward end of the shaft 70 in advance of the frame base 67 and peripherally coacts at its bottom portion with a roll 86, which is rotatably carried by the outwardly turned foot portion of a slide 87which has a vertical slot 88 receiving the shaft 70 and isguided for vertical reciprocatory movements by the front portion ofthe base frame 67.-

The i i 2or A stem 89 is attached to the upper end of the plate 87 and extends upward therefrom through a vertically registering portion 90 of the bearingblock 60, being threaded in said portion for vertical adjustment relative thereto. The adjustment of the plate 87 and stem 89 with respect to the bearing block 60 and cam S5 is such that the roller 86 is at all times held against the face of the cam wheel, and the form of the cam is suc-h that at each revolution thereof a predetermined lowering movement is imparted to the plate 87 and through it to the bearing block 60. rEhe bearing blocks and 61 being yieldingly spaced by the spring 63 and mounted for vertical ioating movements together against the tension of the spring 65, the two blocks are caused to have vertical reciprocatory movements in unison and such movement is communicated to the work engaging wheels 57. The gears 77 during such movements slide longitudinally of the shaft 75. Vhen the wheels 57 are in elevated position the space therebetween is in the normal line of feed of the work a, and a lowering of the wheels imparts a downward deflect-ing or bending movement to the work and effects a breaking off of the same at a point thereon which is scored or weakened by the action of the scoring wheel 44. y Upon a raising of the bearingblocks 60 and 61 to their upper or normal positions, the movement of the block 61 is stopped before that of the block 60 by reason of the parts 69 striking the stops 69, the springs GS'then acting to cause a slight continued upward movementof the upper block to effect a spacing of the feed wheels 57 to reylease the work. The lowering movement of the blocks 60 and 61 and the consequent drawing together of the feed wheels 57 to have gripping or feeding engagement with the work is timed to take place during a scoring operation, the breaking-off action of a work section taking place approximately when the scored point on the work is substantially over the rigid or pivoted end portion of the supporting table 19 so that such end portion of the table acts as a fulcrum for the work during the breaking-olf operations. It is found in practice that by imparting a lateral deecting or breaking-off strain to a work piece in advance of a scored point, the material usually has a ragged or irregular break, which is objectionable. I have discovered that by exerting a pull on the work piece simultaneously with the lateral i deflecting or breaking-oli' strain thereon, a

clean break of the work is effected at the scored point. This is accomplished by making the peripheral speed on the rolls 57 slightly greater than the speed of movement of the work so that a slight slipping of the wheels on the work and a consequent longitudinal pulling of the work will be effected.

'A modification of the work breaking-olf means is shown in Fig. l1 wherein the slide plate 87 and the roll 86 are lowered from operative coaction with the cam wheel 85, the work engaging wheels 57 are removed from the shafts 58 and 59 and a cam wheel 91 is mounted on the shaft 58 and is adapted to have peripheral wiping and downward deiecting engagement with the work a in advance of the guide 20 at each revolution of the cam.- In this form the bearing block 60 stands at all times in raised position and its upward movement is limited by a block 92 inserted between it and the upper end wall of the guideway 62. The use of this form of breaking-off means is preferable vwhen the work is being run at a very rapid speed, say, from 300 to 1000 feet a minute, but when running the work at a less speed, the form of breaking-off means shown in Figs. 9 and 10 is preferred.

The operation of my machine is as follows:

It will be understood that the work bar or tube advanced from a furnace or other *source of supply between the feed chains 9 by which it is drawn forward from the source of supply and advanced through the guides 17 and 20 beneath the scoring head 40 and thence between the opposed breaking-off wheels 57, or beneath vthe breakingoff cam 91, as the case may be, at a uniform predetermined speed. The scoring wheel 44 is driven at very high speed by the motor 32 and at the same time is..r otated about the axis of the motor shaft 33 from the shaft 21 through the intermediate. driving connection 25, 26 and 51, and also has vertical rocking movements imparted thereto from a rotation of the shaft 25 carried by the table 24 by the coaction of the cam 27 with the supporting roll 2S. The rocking of the table 24 causes the scoring wheel 44 to lower into scoring engagement with the work' at predeterminedy intervals so that the scoiing occurs at uniformly spaced points on'j the work. The rotation of the scoring wheel about the axis of the shaft 83 is so timed with respect to the rocking movements of the table 24 and parts carried thereby that the exposed edge of the scoring wheel will have contact with the work for a short period at each lowering movement of the wheel, the work being pressed down against the opposed tension of the supporting table 18 during the scoring action of the wheel therewith. The turning speed ofthe eX- posed edgev of the scoring wheel about the axis of the shaft 33 corresponds to the speed of advancing movement of the work so that the wheel will only have contact with the work at one point thereon during a predetermined arc of rotation of the wheel about the axis of the shaft 33. The use of the scoring wheel on the work causes a shallow the point of contact so that an abnormal strain is set up in the glass and renders it more brittle at -such po-int to facilitate breaking off. When a redetermined length of work has advanced between the breaking olf rolls 57 the cam wheel 85 causes a depression of the vertically floating blocks 60 and 61 through the intermediate connecting' means 86, 87 and 89 and a corresponding movement to the wheels 57 to cause a gripping of the work thereby and a quick 'downward deiecting or bending of the work a consequent breaking-off or severing of the same at the adjacent scored or weakened point. The wheels 57, due to their greater speed, cause a pulling stress to be applied to the work to assist in breaking off the same. The cam-wheel 85 then permits the floating blocks to raise into normal positions under the action of the springs 65.

It is evident` that with my new scoring means the work may be fed through the machine at a very rapid speed, for instance, four or five hundred feet per minute, without the movement of the scoring mechanism imparting any noticeable vibration or rocking action to the machine. v

I wish it understood that my invention is not limitedto any specific construction, arrangement or form of the parts, as it is capable of numerous modifications and changes without departing from the invention.

Having thus described.A my invention,

what I claim as new, and desire to secure by Letters Patent, is,- v i l. In a machine of the class described, a rotatable work scoring wheel, a mounting for the wheel rotatable about an axis intersecting the Wheel diametrically, and means for rotating the wheel and its mounting simultaneously.

2. In a machine of the olas-s described, a driven shaft, a work scoring wheel carried by the shaft, a carrier for theshaft' rotatable about an axis intersecting the VWheel diametrically, and means for rotating the shaft and its carrier simultaneously.

3. In a machine of the class described, a rotatable housing, a work scoring or cutting Wheel journaled in the housing with a working edge projecting from the housing at one side of the housing axis, and with said axis intersecting the wheel diametrically, and means for driving the member and housing simultaneously vand continuously.

4:. In a machine of the class described, a rota-table housing, means for rotating the housing, a work scoring or cutting wheel journaled in the housing with its working edge projecting from the housing at one side of the housing axis and with said .axis intersecting the wheel diametrically, and means for driving the member and housing simultaneously and continuously.

5. In a machine of the class described, a work scoring or cutting member adapted to score elongated work transversely, and means for imparting predetermined reciprocatory movements to the member transversely of the work operated on and means connected to operate in timed relation with the first said means and adapted to impart predetermined rotation to the member in a plane lengthwise of the work acted on.

6. In a machine of the class described, va scoring or cutting member mounted for rotation about 'difierent axes, separate means for simultaneously and continuously rotating the member about different axes, and

means, connected for operation in timed' relation to one of said rotating means, for

moving the member into and out of work engaging position transverse to the work being acted on.

7. In a machine of the class described, a scoring or cutting wheel, means carrying the wheel for rotation about axes intersectingeach other at the center of the wheel, and means for impartingi continuous rotation to the wheel about each of said axes.

8. In a machine of the class'described, a scoring or cutting wheel, means carrying said wheel for rotation about` axes intersecting each other at the center of the wheel, and separate means operable to rotate said wheel about each of said axes.

9. In a machine of the class described, means mounted for rocking movements and including a scoring or cutting member rockable with the means and carried thereby for rotary-movements in different planes, means for imparting predetermined successive rocking movements to the first means, and means for continuously rotating the rotatable member of the first means in one of its different planes of rotation in Itimed relation with said rocking movements.

10. In a machine ofthe class described, a frame mounted for rocking movements, a scoring or cutting member carried by the frame for rotary scoring or cutting movements about one axis, and for rotating about a different axis to successively turn a working edge of the member into work-engaging position, means for imparting separate rotation to the member about different axes, and means for rocking the frame to move the member into and out of work cutting position in timed relation toits rotation about said different axis.

. 1l. .In a machine of the class described, a frame mounted for rocking movements, a shaft journaled in the frame, means for drivizo ing said shaft, a head mounted for turning movements about the shaftl'axis, a work scoring or cutting member journaled in the head with its axis at an angle to the shaft axis, means connecting the shaft and member for rotating the member about its axis from a rotation of the shaft, means for rotating the head about thc shaft axis, and means for rocking the frame in predetermined relation 10 to the speed of rotation of the head.

12. In a machine of the class described, a shaft, a mounting for the shaft, a housing mounted for free rotation on the shaft, means for driving the shaft, means for imparting rotation to the housing. a scoring or cutting wheel mounted in the housing with its cutting edge in the plane of thev shaft axis, said `wheel having an edge por tion projecting without a portion of the housing, and driving connection between the shaft and wheel.

13. In a machine of the class described, a housing mounted for rocking movements in one plane and for rotary movements in a different plane, a rotatable' scoring member mounted within the housing and having a working edge portion projecting therefrom, the axis of rotation of the ymember being at an angle to the axis of rotation of the housing, means for rotating the scoring member, and means operable to impart both rocking and rotary movements to the housing.`

14. In a machine of the class described, means for continuously feeding an elongated work piece longitudinally through the machine, a scoring wheel rotatable to'move its edge transversely of the work,'a mounting for the wheel, means to rota-te the mounting to move the work-contacting edge ofthe 40 wheel in the longitudinal direction of the work, and means adapted to rock the mounting transversely of the work to cause intermittent contact of the wheel with the work.

15. Ina machine of the class described,

means forfeeding a work piece continuously from a source of supply, a. work scoring or cutting member mounted for rotation in different planes and for reciprocatory movements to andfrom work-engaging position,

,and mechanism for rotating the member about itsdilferent axes of rotation and imparting reciprocatory movements thereto whereby the member is rocked into and out of 'engagement with the Work, is rotated in the direction of movement of the work and at uniform speed therewith and is rotated to score or cut the work when in engagement therewith.

16. In av machine 0f the class described,

G0 means for continuously feeding a work piece from a source' of supply, and mechanism automatically operable to periodically act on the work piece to score or cut the same at predetermined spaced intervals, said mechanism comprising a head mountedfor reciprocatory movements toward and from the work and for rotation in the longitudinal plane of movement of the work, cutting or scoring fmembers carried by the head for rotation transverse to the work, means for imparting scoring or cutting rotation to the member, and means for rotating and imparting rocking movements to the head into and out of engagement with the work, the rotation and rocking of the head being in timed relation with each other and with the speed of movement of the work.

v17. In a machine of the class described, I

means for continuously feeding a work piece from a s ource of supply, mechanism automatically operable to periodically act on the work piece to score the same at predetermined spaced intervals lengthwise thereof and continuously rotatable means acting on the Work in advance of the scoring means and periodically operable to eil'ect a lateral deflection of the work to break it in two at a scored point.

18. In a machine of the class described, means for successively scoring a work piece longitudinally thereof as it` feeds from a source of supply, and mechanism operable to act on the work in advance of the scoring mechanism to periodically effect a lateral deflection of thevwork from its course of movement to break the same in two at a weakened point, said mechanism including a continuously rotatable member for coaction with the work.

19. In a machine of the class described, means for acting on a Work piece of elongated brittle material to successively score the same at predetermined spaced points longitudinally thereof, a rotary member engaging the work piece in advance of the scoring means, means driving the member at the speed of movement of the work piece, and 4means, carrying the wheel and operable to periodically move it transverse to its axis to effect a breaking-off deflection of the work piece fromits normal line of feed.

Q0. In a machine of the class described. mechanism for acting on a work piece of elongated form to successively deflect the work piece from its normal line of feed to break a section from the forward end thereof, said mechanism. comprising a vertically movable shaft, a Work piece engaging wheel on the shaft, power means for driving the shaft and wheel, and means normally retaining the shaft in one position of its move-y ment and operable to transversely move the same to canse its wheel to exert a lateral breaking-off pressure on the Work piece.

21. In a machine of the class described, a wheel beneath, at one side of and in engagement with a longitudinally feeding Work piece, means carrying the wheel for movements transverse to the work piece, power means for driving the Wheel and means for i ein periodically imparting transverse move-'- ments to the wheel to cause it to exert a lateral breaking oil' strain on an engaged work block, and means periodically operable to move the block from normal position to impart a work ybreaking-oil' movement to' the member. l

23. In a machine of the class described, a frame, aguide block mounted for reciprocatory movements in the frame, a shaft journaled inthe guide block with its axis at right angles to the plane of movement of the block, a work engaging wheel carried by the shaft, means normally retaining the block in one position of its movement, means operable to periodically move the'block from such position to impart a work breaking-oli' movement to the wheel and means forv driving the shaft in any position of its movement.

24. In a machine of the class described, a frame, a pair of guide blocks carried by tho frame, means carried by theframe for reciprocatory movements therein, two shafts carried'bv the means with their axes at right angles tothe movement of the means,

opposed wheels carried ,by the shafts and between which an elon atedwork piece feeds, and means operab e to periodicall reciprocate the first means to impart a wor breaking-off movement to the wheels.

25. In a machine of the class described, a frame, apair of bearing blocks mounted for reciprocatory movements 4on the frame, adjustable means for connecting and spacing` the blocks, means normally acting on the blocks to retain them in one posltion of their movement, a pairof opposed work engaging wheels carried by the blocks and movable therewith to impart a breaking-off movement to an engaged work iece, a continuously voperating cam, an adjustable means connecting the cam and blocks and operable 'by the cam to impart predetermined movements to the blocks from normal position.

26.r In a machine of the class described, means for scoring a continuously feeding work piece at 'predetermined intervals, and means operable to engage the work piece in advance of the scoring means and exert a combined pulling and breaking-oli' stress thereon. y

27. In a machine of the class described, means for scoringl a continuously feeding work piece at predetermined intervals, and means operable to engage the work piece in advance of the scoring means and simultaneously exert longitudinal pulling and lateral breaking olf stresses thereto.

28. In a machine of the class described,

means for scoring a continuously feeding work piece at predetermined intervals, and mechanism including a pair of opposed wheels operable to 'grip the work therebetween at a point in advance of the scoring means and to periodically impart longitudinal and lateral breaking ofl'- stresses to the work.

29. In a machine of the class described, means for scoring a continuously feedin work piece at predetermined intervals, an mechanism including a pair of opposed Work gripping wheels operable to engage the work therebetween at a pointvin advance of the scoring means and periodically movable laterally of the feeding movement of the work to apply a breaking-off stress thereto, the Wheels being driven at a speed Which is greater than the `speed of movement of the work.

30; In a machine of the class described, means for scoring a continuously feeding workpiece at predetermined intervals, and mechanism operable to Aperiodically engage the work in advance of the scoring means and then movable to apply a lateral breaking olifv stress to the work, said mechanismalso being operable when in engagementI with the work to apply a longitudinal pulling stress thereto.

31. In a machine of the class described, means for scoring a continuously feedn work piece at predetermined intervals, an mechanism having a pair of opposed.l work .gripping wheels for engaging the work in advance of the scoring means and normally standing released from the Work, said mechanism being operable to drive the wheels at a speed greater'l than the speed of movement ofthe Work and to periodically move the wheels into gripping engagement with-the work and to effect a lateral breaking-off defiection of the Work.

In testimony whereof I have hereunto signed my name to this specification.

l EDWARD BANNER.

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