US728417A - Glass-cutting apparatus. - Google Patents

Description

v PATBNTEDJMAY 19, 1903'. H. J. SAGE. GLASS CUTTING APPARATUS.

APPLIOATION FILED MAR. 22, 1901'.

' N0 MODEL.

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110.7%,417. ATENTBD MAY 19, 1903.

A H. J. SAGE. v

GLASS CUTTING APPARATUS.

APPLIQATIoN FILED MAR. 22. 1961. 7

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WA'I'NESSIS mvsrnon Van/61w MM- PumaLn'HQ. WASHINGTON. D. c.

PATENTBD MAY 19, 1903; H. 1. SAGE. GLASS CUTTING APPARATUS.

' APFLIOATIOI-IILED KAI, 22, 1901.

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H; J. SAGE.

GLASS CUTTING APPARATUS I} APPLIOATION FILED MAR,- 22; 1901'.

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norms UNITED STATES PatentedMay'IlQ, 1903.

PATENT OFFICE.

HENRY J. SAGE, or BEAlTERpPE'NNSYLVANIA.

G LASS-C UTT lNjG AP MBA- rust;

SPECIFICATION forming part of Letters Pa e No. '723, e y 1903.

Application filed March 22 1901. SerialNoj 5 Z i3 3 3. 1N0 model To all whom it may concern:

Be it known that I, HENRY J. SAGE, of Beaver, in the county of Beaver and State of Pennsylvania, have invented a new and use- Fig. 7 is a similar view of another modificais designed to do away with the operation-of hand-cutting as now carried out. This hantih. cutting is not only very expensive, demand;

ing highly-skilled labor, but also gives a large p carries the diamond-holders, which are simi- .la r'to each o her and which I have shown as follows: Each holder 35 is formed in two percentage of breakage and waste from im-, perfect cutting or accidental moving of the gage. My invention overcomes these difficulties and greatly reduces the cost; and it consists in apparatus for simultaneously making a plurality of cuts or scorings of the glass.

glass-carrying table and mechanism for movv p p g Y between an adjustable collar 39and theupper' arm 36. This springconstantly tends to force the diamond-holder down, and its downing the tables and cutting-tools relatively to each other, and, further, in the construction and arrangement of the parts, as hereinafter,

more fully described, and set forth in theclaims. 7

beneath the table, the stem of the table extending through .a bearing in the frame and also through a lower bearin g 11, carried upon lateral eXtensionso-f depending legs l2, se-

cured to.the frame.

The cam is mounted upon a;shaft13, having a pinion 14 inter ter is an idler-wheel and engages a pinion 16 ;upon a shaft 17, at the other end of which is mounted a'large internal cam 18. 17 is mounted in suitable bearings 19 and with the cam 18 engages a roller 20, mounted The shaft on a slide 21, carried in a bearing 22 and having link connection 23with a toothed segment 24. The teeth of this toothed segment engage witha pinion 25, mounted on shaft 26, extending transversely ofthe table, and this shaft-is provided with'toothed wheels 27, engagingracks 28, secured to the brackets 30 of the cross-head 29, extending across the table. Thiscross-head 29 is carried upon brackets'i30, having shoes-3lsecured thereto and movable on tracks32, formed as part of a rail 33. The bracket proper is provided with alowersflangefiet, which. projects laterally under the head of the rail, andholds the'crosshead in place in its movements.

The .transverse'bar of the cross-head 29 parts, which are bolted together about the bar 29, whichfits in "recesses therein, and from-one halfof the holder project the arms 36, havingaugular holes in vertical registry andcontaining anangular slide 37. A spiral spring 38 surrounds the slideand is con-fined ward movement is limited by a stop 40.

meshing with a toothed wheel 15, which lat forked'lever 41, engaging pins 42 on an ad- 7 justable collar 43, secured to the sliding diamond-holder. The levers 41 are secured to a common rock-shaft 44 by means of set-screws 45, entering a keyway in this shaftyand at the end of this shaft is secured a lever 46, having a pawl 47 pivoted thereto. This pawl is normally pressed down by spring 48, so that its front end engages a notch in an arcshaped plate &9, secured rigidly to the bracket 30. This plate contains two notches, each arranged to receive the pawl, which being spring-pressed will engage either of them when registering with it.

The lever 46 is immediately above the end of the sliding rod 50, sliding through bear ings in brackets 51 and 52 and having a roller bearing on cam 53. The roller is held against the cam by spring 53', and the cam is provided with two oppositely-extending projections, as shown in Fig. 1. The pawl is immediately above a similar sliding rod 54, whose lower roller rides on an inner cam 55, mounted on the same shaft 56 as the cam 53 and having projections similar to but higher than those of cam 53. The main power-shaft 56 is provided with a gear-wheel 56, which meshes with the pinion 16 and imparts motion thereto and to the other gears of this train. By this mechanism I can automatically change the width of the cuts at each successive movement of the cutters. Thus as the cutter-carrying cross-head is moved in one direction the cams engaging the rollers on rods and 54 will first lift the pawl to disengage it from its lower notch and then lift the lever, thus swinging the rock-shaft and elevating the cutters after the cuts have been made. Now having locked the levers 41 of alternate ones of the cutters, as the cam projections pass the rollers of the sliding rods the pawl will be released and its spring will force it into the upper of the notches. The lever then being released is locked in its upper position by the pawl, and consequently all of the levers &1, which are locked to it,

will be held against downward movement and will retain their cutters in lifted position, as illustrated in Fig. 5. On the next forward movement of the cross-head, therefore, only those cutters will operate whose liftinglevers have not been secured to the rockshaft. As the cross-head reaches the end of its return stroke, coming back to its normal position, the cams 53 and 55 will again operate the pawl and the lever and will release the pawl and allow the lever to fall, the cam 55 operating in advance of the cam 53, so that the pawl will be operated before the lever is allowed to drop. The pawl enters.

the lower notch and allows the rock-arm to swing down, so that all the cutters will engage the glass when the table is raised for cutting the next sheet.

In order to adjust the distance between the diamond or cutting wheels,I provide a screwthreaded shaft 57, which extends beneath the rock-shaft and through holes at the lower ends of the cutter-holders. Lock-nuts 58 engage each cutter-holder, and by loosening one of these nuts and tightening the other the holder may be moved along the cross-head and then secured by tightening these locknuts.

At the lower end of the sliding stem 37 is secured a plate 59, having pivoted thereto a swinging plate 60, with an arc-shaped slot through which a screw-threaded stem extends from the plate 59, carrying a thumbnut 61, by which the swinging plate may be secured in any adjusted position. Each swinging plate is provided with a stem 62, projecting downwardly and entering a ferrule 63, adjustably secured to it by set-screw 64. The diamond or other cutting tool is secured at the lower end of the ferrule 63, and it is evident that by turning the ferrule on its stem and swinging the plate portion of the stem a universal adjustment is afforded to bring the cutter to any desired position, in which it may then be locked.

To facilitate the cutting operation and better the action of the diamonds, I prefer to oil the plates along the paths traveled by the diamonds, and to perform this function I secure to the plate 59 an arm 65, having a wick-holder 66 adj ustably secured therein by set-screws 67, this wick-holder leading down from an oil-reservoir 68. This reservoirmay have a cap 69, and a screw 70 is provided,

which will press upon the wick and regulate the flow of the oil or other lubricant. This oiler being secured to the sliding stem of the cutter-holder will rise and fall with it.

In order to raise an individual diamond or cutting tool when the glass is broken or otherwise desired, I pivot a yoke 71 to pins projecting from the top of each cutter-stem and form one end of this yoke in the form of a cam 72. Each yoke is provided with a handle 73, and by throwing this handle in the position shown in dotted lines in Fig. 4 the diamond will be lifted and prevented from cutting.

In order to revolve the table, if desired, in case transverse cuts are to be made after the longitudinal cuts, I mount on the shaft 56 at its inner projecting end an interior cam 74:, which is engaged by a roller 75 on a sliding rod 76, movable in bearings 77 and having rack-teeth engaging a pinion 78, secured to the table-stem. The cam is shaped as shown in Fig. 1, so that after the table has been given its forward stroke, thus cutting the glass longitudinally, the roller or slide 76 will engage the actuating part of the cam, and thus move the rack endwise and turn the table through ninety degrees. The roller then enters the arc-shaped portion of the cam and continues therein during the return stroke of the table, and to stop the table and lock it in its correct adjusted position after turning I provide a springpressed pin 79, which slides vertically in bearing 80 and is normallypressed upwardly by spring 81. A link 82 pivotally connects the lower end of this pin with lever 83, pivoted to the frame at 8 L and having roller 85 bearing upon cam 86, mounted on shaft 13. This cam is provided with one projection 87, which is timed to retract the pin at the end of the forward stroke and just before the rack begins to turn the table.

In operating-the apparatus thejdiamondcutters'aresecured to or unlockedfrom the rock-shaft, according to the width ofthe cuts desired on the second cutting'stroke. glass plate 'is then laid upon the table, which is loweredaway from the cutters, and properly positioned and held thereon by small pins 88, against which the sheet may be moved by small hand-actuated cams 89, as shown in Fig. 3. The machine then being started'into operation; the table is raised, the cutter-carrying cross-head is moved lengthwise of the table, and the spring-pressed diamond-tools, or such as are not locked in upper position, travel in p arallellines across the glass sheet and score it in the usual manner. After the cross-head has reached the end of its travel the'locking-pin 79is withdrawn, and the table is first lowered and then turned through ninety degrees and the locking-pin released to clamp it in its adjusted position. The cutter-carrying cross-head is then automatically moved on its return stroke,and at the end of this stroke the table is automatically raised to cause the glass to contact withthe cutter, and such'of' the cutters as are locked to the rock-arm will be held in upper inoperative position by raising the lever 46 and looking it to pawl 47 in the upper notch in the locking-plate 4:9. forward cutting stroke, and the same cycle of operations as above described follows, except that at the end of the second backward stroke of the cross-head the cam releases the looking device for the tools and allows all the tools to descend to the cutting position. At

the end of the second forward or cuttingstroke of the cutters the table is turned ninety degrees, but in the opposite direction to its mo tion at the end of the first stroke, so that at the end of the second return stroke the parts all resume their normal positions.

In' the form above described it is evident that the distance between the cuts must al- Ways be the same as or a multiple of the'space between the cutting-tools. Toovercoi'ne this difficulty and provide for cutting any width desired, I may duplicate the system'of tools as shown in Fig. 6. In this figure similar numerals indicate corresponding parts to those of the previous form having the prime-mark applied thereto, and to th'e'rock-shafts 44' I secure pinions 90, which intermesh' with an ternately withdrawn fromthe'cutting position, as shown in the figure, and by thus combining the cutting of one set of tools with that of the other,with the adjustments of each,

I can obtain any de'siredwidth between the cuts. 7

The apparatus above described is especially designed for cutting large'quantities of pieces or plates of the'sam'e size'with great I I accuracy; but where it is desired to frequently The The table then starts on its 7 change the sizes of. the plates Imay providev the cross-head with a scale, as shown'inFig.

7, and simply secure the"d'iamond-holder ed'for smaller work ona large quantity of difierent sizes.

In order to change the length of the cut, I

provide a bell-crank lever 94, which is con nected through pivotal link with-the link 23, the end of which link is adjustablein a radial slot of the toothed segment 24.: 13y

swinging the bell-crank lever the link 23 may be adjusted to different portions of the slot, and the length of the cut may thus be adjusted as desired.

The advantages of myinvention will be apparent to those skilled in the art. The la'rgeexpense of cutting, whichhas heretofore con-- siderably increased the cost of all kinds of sheet and plate glass, is greatly reduced. The cutting is done more accurately than it can be done by hand, and the percentage of waste and breakage is greatly reduced; In

actual practice the device is found towork with great efficiency, giving accurate results a and an enormous output.

The apparatus lends itself readily to cutting any and all shapes. For example, by swinging the table through diiferen t arcs any angles desired may be cut, and arcs or'circles may also easily be cut during the rotation of the table. Many other changes in the formand arrangement of the parts may be made withoutdeparting from my invention, since I consider myself the first to mechanically cut glass with a plurality of simultaneous scorj ings.

I claimg v 1. In glass-cutting apparatus, a table for the glass, a cutter-support having'a plurality of cutters carried thereon,,said cutters being movable at right angles to the plane of the table, mechanism for' imparting a yielding pressure to'the cutters, and mechanismfor moving the table and support relatively'to each other; substantiallyas described.

2. In glass-cutting apparatus, a glass-carryingtable,asupporthavingaseriesofspring pressedf'cutter earriers thereon, mechanism for moving" the table and cutter-carriers'toward'and from each other, said cutters being movahleat right angles to the plane'of the table,'an'd mechanismfor moving the'table and cutt er-carrierlongitudinally of each other to effect'the cut; substantiallyas described. 3. In glass-cutting apparatus, a turning glass-carrying table, a support 'having'a series of cutter-carriers mounted thereon and.

movable at right angles'to the'plane of the table,'rnechanis'mfor pressing the cutters'towardthe table with a-yielding pressure, and

mechanism for turning 'thetableysubstantially as described.

&

right angles to the table, mechanism for moving the cutter-support and table toward and from each other, mechanism for turning the table, and mechanism for moving the support and table longitudinally of each other during the cutting operation; substantially as described.

5. In glass-cutting apparatus, a glass-carrying table, a support having a plurality of adjustable yieldingly-pressed cutters thereon and movable at right angles to the table, and mechanism for moving the table and cutter-carrier relatively to each other; substantially as described.

6. In glass-cutting apparatus, a turning table for the glass, a support having a series of adjustable spring-pressed cutters movable at right angles to the table, mechanism for moving the table and cutter-carriers toward and from each other, and mechanism for moving the table and cutter-carrier longitudinally of each other; substantially as described.

7. In glass-cutting apparatus, a glass-carrying table, a support having a series of yieldingly-pressed cutters, a retracting device arranged to act upon all the cutters, and mechanism for connecting or disconnecting the cutter-carriers from said retracting device; substantially as described.

8. In glass-cutting apparatus, a glass-carrying table, a support having a series of yieldingly-pressed cutters, and mechanism for adjusting the spaces between the cutters; substantially as described.

9. In glass-cutting apparatus, a glass-carrying table, a support having a plurality of spring-pressed cu tter-carriers mounted thereon and movable at right angles to the plane of the table or support, and mechanism for adjusting the pressure of the springs; substantially as described.

10. In glass-cutting apparatus, a glass-carrying table, a support, a plurality of cuttercarriers secured thereto and movable at right angles to the plane of the table or support, and mechanism for adjusting the angle of the cutter-carriers relatively to the plane of the sheet; substantially as described.

11. In glass-cutting apparatus, a glass-support, a cutter-support having a plurality of cutter-holders secured thereto and movable at right angles to the plane of the table or support, and mechanism whereby the holders may turn on their axes; substantially as described.

12. In glass-cutting apparatus, a glass-carrying table, a support having a plurality of cutter-carriers mounted thereon, and mechanism whereby the carriers may turn in three directions; substantially as described.

13. In glass-cutting apparatus, a support having a series of cutter-holders, mechanism for exerting yielding pressure upon said holders, and stops to limit their movements under said pressure; substantially as described.

14. In glass-cutting apparatus, a cutter holder having a rocking element with a clamp, and a-cutter-holding stem revolubly secured to said rocking element; substantially as described.

15. In glass-cutting apparatus, a support having a plurality of cutter-carriers, and a lubricating device secured to each cutter-carrier; substantially as described.

16. In glass-cutting apparatus, a support having a series of yieldingly-pressed cutterholders, mechanism for simultaneously retracting all of said holders, and means for retracting part of said holders independently of the other holders; substantially as described.

17. In glass-cutting apparatus, a glass-carrying table, a support having a plurality of cutter-carriers arranged to give parallel cuts, mechanism for exerting a yielding pressure upon the cutters, means for holding the cutters in retracted inoperative position, mechanism for moving the cutter-carrier support and table relatively to each other to form the cutting stroke, and mechanism for automatically turning the table after said cutting strokes are completed; substantially as de scribed.

18. In glass-cutting apparatus, a glass-carrying table, a support having a series of cutter-carriers, mechanism for moving the table and support longitudinally of each other, and mechanism for automatically raising the table before and lowering the same after the cutting stroke is completed; substantially as described.

19. In glass-cutting apparatus, a glass-carrying table, a support having a plurality of cutter-carriers, mechanism for moving the table and support relatively to each other, and mechanism for automatically retracting a portion of said cutter-carriers before the second cutting stroke; substantially as described.

20. In glass-cutting apparatus, a glass-carrying table, a support having a plurality of cutter-carriers, mechanism for moving the table and support relatively to each other, mechanism for automatically retracting a part of said cutter-carriers before the second cutting stroke and mechanism for releasing the cutter-carriers after the second cutting stroke; substantially as described.

In testimony whereof I have hereunto set my hand.

HENRY J. SAGE.

\Vitnesses:

H. M. CoRWIN, L. A. CONNER, Jr.

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