US1502990A - Glass-cutting machine - Google Patents

Description

July 29, 1924. 1,502,990

E. J. KIEFER GLASS CUTTING MACHINE Filed Feb. 1, 1923 4 Sheets-Sheet 1 veufoz Jul 29, 1924.

E. J. KIEFER GLASS CUTTING MACHINE Filed Feb. 1. 1923 4 Sheets-Sheet 3 dvwentot w July 2 19% E. J. KIEFER cuss CUTTING MACHINE 4 Sheets-Shet 5 Filed Feb. 1, 1923 July 29. 1924.

. E. J. KIEFER emss CUTTING MACHINE Filed Feb. 1, 1923 4 Sheets-Sheet 4 I Patented July 29, 1924.

and its own axis.

' tumblers.

EDWARD J. KIEFER, OF NEW YORK N. Y.

GLASSPCUTTING MACHINE.

Application filed February 1,1923. Serial No. 616,268.

T 0 all whom it may concern:

Be it known that I, EDWARD J OHN KIEFER, a citizen of the United States, residing in borough of Queens, in the city and State of New York, have invented certain new and useful Improvements in Glass-Cutting Machines, of which the following is a specification, reference being had to the accompanying drawing, forming a part hereof.

' This invention has for its object to produce an improved machine for the rapid cutting of ornamental designs on glassware, such as tumblers. In the machine in which the resent improvements are embodied,'the tumblers, which may be taken to be the goods to be decorated, are supported by suitable devices in a circular series upon a rotary carrier and are moved into and out of contact with a concentric grinder, each tumbler receiving a partial rotation upon its own axis at each operation so that it shall complete a rotation upon its own axis as it completes a revolution about the axis of the grinder. By such movement the tumbler is brought into contact with the grinder in a circumferential series of spots and will have ground upon its surface a circumferential series of spots, the character of which will depend to some extent upon the movement and timing of the movement of the tumbler with respect to the grinder The invention will be more fully explained hereinafter with reference to the accompanying drawings in which is illustrated a machine which embodies the invention in a form suited for the ornamentation of ordinary glass water In the drawings Figure 1 is a view partly in elevation and partly in vertical section of a machine which embodies the invention.

Figure 2 is a view of the same in end elevation as seen from the right hand in Figure 1.

Figures 3. 4, 5 and 6 are detail views of one of the devices for supporting each tumble-r on the carrier, Figure 3 being a view partly in section on a plane indicated by the broken line 33 of Figure 4:, Figure 4 being a view partly in elevation and partly in section on the plane of a radius of the carrier. Figure 5 being a view in elevation as seen from the right hand in Figure 4, and Figure 6 being a view in section on the plane indicated by the broken line 66 of Figure 4.

Figure 7 is a detail view of the tumblersupporting spindle and some of its associated parts.

Figures 8 and 9 are detail views illustrating the character of the ornamentation produced by the mechanism illustrated in the drawings.

In the embodiment of the invention illustrated in the drawings, the grinder a is shown as fixed on a shaft a which is supported at one end in a bearing a on a pedestal a and as mounted on the other side of the grinder ina sleeve 6 which in turn is supported in a bearing a on a pedestal a The shaft a may have a stepped'pulley a by which the grinder a may be rotated at a suitable speed. The sleeve 7) is rotatable in the bearing a and is shown as rotated at relatively slow speed from a motor I) through gears 6 worm gears 6 a shaft b and worm gears 6 At its other end, adjacent the grinder a, the sleeve 6 has fixed thereto a disc-like carrier 0 which is slotted radially as at 0 and is formed also with parallel slots 0 on opposite sides of the slot 0', for the convenient attachment and adjustment of the tumbler-supporting devices hereinafter described. As shown, the carrier 0 is adapt-ed for the support of eighteen tumblers, but it will be understood that the number may be varied as the conditions of use require.

For the convenient support and adjustment of each tumbler-supporting device there is provided a bracket a' which is adjust-ably secured to the carrier by bolts d which pass through the slots 0 In each bracket 03 is mounted, so as to swing upon the axis ti a block e in which is mounted the rotatable spindle 7 which carries one member f of the holder for the tumbler. The other member f is fixed on a spindle f which is mounted in a yoke or frame f. The spindle f carrying the member f of the holder, is pressed toward the tumbler,

so as to hold it firmly but yieldingly between the members f and by a spring f which bears through a spring cup 7 against a lever f pivoted on the frame and prm vided with a latch f When the latch is disengaged from the frame 7 and the pressure of the lever f is removed from the spring i the spindle f is drawn back by a spring f so as to release the tumbler. The frame 7 has a limited longitudinal movement with respect to the block e and is held from rotation, being carried by pins f and pressed normally to the left by springs f, as shown in Figure 4.

The holder, with the tumbler, receives a step by step rotation on its own axis for the purpose f presenting a fresh surface to the grinder, for the formation of a circumferential series of spots or punties and in the embodiment of the invention illustrated it receives also a longitudinal movement so that a second circumferential series of punties may be formed on the tumbler if desired. It will be understood that the machine is capable of adaptation for a wide variety of ornamentation, with corresponding changes in some of the details of construction of the holder and parts associated therewith. The machine chosen for illustration is adapted for the formation of two circiunferential series of spots or punties. as shown in Figure 9, and the devices involved in the production of such form of ornamentation will now be described. In produc ing this form of ornamentation the tumbler receives two complete rotations on its vown axis as it is carried in one revolution about the grinder. receiving a longitudinal displacement after the completion of 6ne circumferential series of punties so that the second circumferential series of punties shall be formed. The devices now-t be described are therefore adapted for the production .of the movements of the tumbler necessary to the particular ornamentation described.

The tumbler, supported as described, is moved into and out of contact with the grinder, receives a step by step rotation on its own axis when out of contact with the grinder so as to present a fresh spot for contact with the grinder, and in the embodiment of the invention illustrated. also receives a longitudinal movement when the first circumferential series of punties has been formed and a slight rotary displacement so thata second circumferential series of punties shall be formed instaggered relation with the first series of punties.

To produce the movement of the tumbler into and out of contact with the grinder there is secured to the fixed frame of the machine a cam toothed disc 9 which has, in the machine shown.'thirty-six cam teeth Mounted on the carrier 0, in proximity to each tumbler holding device, is a cam lever g which, in the movement of the carrier, co-acts with the cam teeth and at its other end co-acts with an adjustable stop on a stem 9 which is pivotally connected at g to the block e. A spring 9 interposed between an adjustable stop (I on the bracket d and the block 6, moves the block in opposition to the cam disc. Accordingly, as the carrier 0 is rotated, each of the tumbler supporting devices is oscillated at intervals by the successive cam teeth g to move the tumbler, from the position shown in Figure 1. out of contact with the grinder a. As the cam lever 9 passes beyond each tooth g the tumbler supporting device is oscillated in the opposite direction by the action of the spring 9 and the tumbler is again moved into contact with the grinder.

While the tumbler is out of contact with the grinder it receives a step by step rotationon its own axis throughthe devices now to be described. Mounted on the spindle f is a driving gear or ratchet h, the hub h of which, in the particular embodiment shown, is slotted obliquely. as at If, for engagement with a pin 71 which is fixed to the spindle f. The spindle f is therefore rotated with the gear h but has a limited movement of rotation with respect to the gear, so that, when the spindle is moved lengthwise. as hereinafter described, the engagementof the pin with the oblique slot effects such relative rotation of the spindle that. as previously explained. the spots or punties of the second circumferential series shall be staggered in relation to the spots or punties of the first circumferential series. The ratchetwheel 71- is engaged by a spring pressed hold pawl h, to prevent backward movement, and by a spring pressed driving pawl 71 which is carried by a slide it, mounted for longitudinal movement in ways 6' on the block 6. The slide h is pressed normally toward the axis of the machine by a spring k and receives its efiective movement, to advance the ratchet wheel h, when the block 0 is oscillated so as to move the tumbler out of contact with the grinder, by contact of the slide hf with stop 03* carried by the bracket d. To insure accuracy of rotation of the tumbler on its axis, there is fixed to the spindle f a toothed indexing wheel f" which cooperates with a fixed tooth 7. carried by the frame of the machine, when the tumbler is moved into contact with the grinder.

To effect the longitudinal movement. of the spindle f and therefore the longitudinal displacement of the tumbler for the formation of a. second circumferential series of punties, there are provided the devices now to be described.

Mounted loosely on the spindle f, near its outer end, is a ratchet wheel or gear 11 which is engaged by a hold pawl 21', to prevent backward movement, and by a spring pressed driving pawl i which is carried by the reciprocating slide 71- above mentioned. The ratchet wheel 2'- is shown as having twice as many teeth as the ratchet wheel h so that, in the operation of the machine shown, the spindle f and therefore the tumbler shall receive two complete rotations during the full revolution about the axis of the machine,

'slotted to straddle the spindle and provided with a cam 2'. The latter is arranged for co-operation with a roller 2' which is carried by arms i hung on one of the guides 2' and is arranged for cooperation with the head 7' of the spindle f. Carried by the bracket d, in position for co-operation with the slide bar a", is a cam 61". The slide bar 2' as will be understood, makes contact at one end or the other, at each half rotation of the ratchet wheel 2', with the cam d and is moved first in one direction to bring the cam 2' in contact with the roller i and therefore to move the spindle f longitudinally to the right, thereby shifting the tumbler so that,

in the remaining half revolution. it will be brought into contact with the grinderin a differentcircumferential line. At the same time, through the co-operation of the pin 72,3.

series. As the tumbler completes its second rotation and the second half of its revolution the slide bar i will be moved in the opposite direction, removing the cam i from contact with the roller 2' and permitting the spindle to be moved again to the left under the influence of the springs i on the pins f above mentioned.

As each tumbler completes a revolution it is disengaged by the attendant. from the holding devices by manipulation of the latch f and lever f and another tumbler is put in its place. As many tumblers are undergoing operation at one time it will be seen that the capacity of the machine is very great.

It will be understood, of course, that while tumblers are herein mentioned for convenience in description, the machine is capable of adaptation to the grinding of other articles. It willalso be understood that while, for convenience, reference has been made herein to a grinder, the precise character of attrition eifected may be other than what is commonly understood as grinding. including the polishing of articles previously ground or cut, the term grinder as hereineniployed, being merely a convenient term for the designation of that element of themachine which operates on the articles treated.

1 Furthermore, although the mechanism in which the invention is embodied is illustrat ed herein, for the sake of clearness, in a comparatively simple form and adapted for the production of the comparatively simple ornamentation indicated, the mechanism can be adapted for the. production of various forms of ornamentation. Changes in details of construction and arrangement. will therefore be made to suit the character of the work to be done and it will be understood that the invention, exceptas pointed out in the claims, is not limited to the particular construction shown and described herein.

I claim as my invention:

1. In a machine of the character described, the combination of a grinder, a rotatable carrier concentric with the grinder, a holder for the article to be treated mounted movably on the carrier, means for moving the holder so as to move the article to be treated into and out of contact with the grinder, and means to rotate the holder, step by step, on its axis when the article to be treated is out of contact with the grinder.

2. In a machine of the character described, the combination of a grinder, a rotatable carrier concentric with the grinder, a holder for the article to be treated mounted to oscillate on the carrier, means for oscillating the holder so as to move the article to be treated into and out of contact with the grinder, and

means to rotate the holder step by step on its axis when the article to be treated is out of contact with the grinder.

3. Ina machine of the character described, the combination of a grinder, a rotatable carrier concentric with the grinder, a holder for the article to be treated mounted to oscillate on the carrier, a cam disc co-operating with the holder so as to move the article to be treated into and out of contact with the grinder, and means to rotate the holder'step by step on its axis when the article to be treated is out of contact with the grinder.

4. In a machine of the character described. the combination of a grinder, a carrier concentric with the grinder, a holder for the article to be treated mounted to oscillate on the carrier, a cam lever mounted on the carrier and operatively connected to the holder, and a cam disc co-operating with the cam lever.

5. In a machine of the character described, the combination of a grinder, a carrier concentric with the grinder, a holder for the article to be treated including a spindle, and a block in which the spindle is mounted to rotate, the block being mounted to oscillate on the c arrier, means to oscillate the block, and

' means to r'otatethe spindle step by step.

A '6. In: a machine of the character described, the combination ofa grinder, a carrierconcentric with the grinder, a holder for the article to .loetreated including a spindle, and a block in which the spindle is mounted to rotate, the block being mounted to oscillate 'on the carrier, means to oscillate the lit) block and means to effect longitudinal displacement of the spindle.

7. In a machine of the character described, the combination of a grinder, a carrier concentric with the grinder, a holder for the article to be treated including a spindle,

and a block in which the spindle is mounted to rotate, the block being mounted to oscillate on the carrier, means to oscillate the block, means to rotate the spindle step by step, and means to efiect longitudinal displacement of the spindle.

8. In a machine of the character described, the combination of a grinder, a carrier concentric with the grinder, a holder for the article to be treated including a spindle, and a block in which the spindle is mounted to rotate, the block being mounted to oscillate on the carrier, means to oscillate the block, means to rotate the spindle step by step, means to efiect longitudinal displacement of the spindle, and means to effect relative rotary displacementof the spindle with respect to the means for rotating the spindle.

9; In a machine of the character def scribed, the combination of a grinder, a carrier concentric with the grinder, a holder for the article to be treated including a spindle, and a block in which the spindle is mounted to rotate, the block being mounted to oscillate on the carrier, a fixed cam disc, and a cam lever mounted on the carrier for co-operation with the cam disc and operatively connected with the block.

10. In a machine of the character described, the combination of a grinder, acarrier concentric with the grinder, a holder for the article to be treated including a spindle, and a block in which the spindle is mounted to rotate, the block being mounted to oscillate on the carrier, means to oscillate the block, a ratchet wheel operatively connected to the spindle, and a driving pawl therefor actuated by the oscillation of the block.

11. In a machine of the character described, the combination of a holder for the article to be treated including a spindle, a driving gear'on the spindle, means to efiect rotation of the spindle through the ear, and means to effect relative rotary disp acement of the spindle with respect to the gear.

12. In a machine of the character described, the combination of a holder for the article to be treated includin a spindle, a driving gear having a hub with an oblique slot, a pin fixed in the spindle and entering I said slot, means to effect rotation of the spindle through the gear, and means to effect longitudinal movement of the spindle with respect to the gear.

13. In a machine of the character described, the combination of a carrier, a holder for the article to be treated including a spindle and a block in which thespinmosses dle is mounted to rotate, a wheel mounted loosely on the spindle, means to efiect rotation of the wheel, a cam slide bar mounted on the wheel, a fixed cam for co-operation with the cam slide bar in its rotation with the wheel, and means actuated by movement of the slide bar to effect longitudinal movement of the spindle.

14. In a machine of the character described, the combination of a grinder, a carrier concentric with the grinder, a series of holders for the articles to be treated mounted movably on the carrier, means for mov ing each holder so as to move the article to be treated into and out of contact with the grinder, and means to rotate the several holders step by step on their axes when the articles to be treated are out of contact with the grinder.

15. In a machine of the character de- --scribed','the combination of a grinder, a roand cam levers mounted on the carrier for co-operation with the cam disc and operatively connected with the holders.

16.-In a machine of the character described, the combination of a grinder, a carrier concentric with the grinder, holders for the articles to be treated including each a spindle and a block in which the spindle is mounted to rotate, the blocks being mount ed to oscillate on the carrier, means to oscillate the blocks to move the article to be treated into and out. of contact with the grinder, and means to rotate the spindles step by step.

17. In a machine of the character described, the combination of a grinder, a rotatable carrier concentric with the grinder, holders for the articles to be treated including each a spindle and a block in which the spindle is mounted to rotate, the blocks being mounted to oscillate on the carrier, a fixed cam disc having a plurality of cam teeth, and cam levers mounted on the carrier for co-operation with the cam disc and operatively connected respectively with the several blocks.

18. In a machine of the character described, the combination of a grinder, a carrier concentric with the grinder, a holder for the article to be treated including a spindle and a block in which the spindle is mounted torotate, the block being mounted to oscillate on the carrier, means to oscillate the block, means to rotate the spindle step by step, an indexing gear secured to the spindle and a fixed indexing tooth for co-operation with the indexin gear.

19. In a machine of the c aracter described the combination of a carrier, a o holder including a spindle and a block in which the spindle is mounted to rotate, the block being mounted to oscillate on the carbar in the opposite direction.

5 rier, means to oscillate the block, a ratchet This specification signed this 31 day of wheel on the spindle, a slide bar on the January A. D'. 1923. block, a pawl carried by the block for 00- EDWARD J. KIEFER.

peration with the ratchet wheel, a spring to move the slide bar in one direction, and a fixed stop to effect movement of the slide 10 I

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