US522046A - Jewel-piping machine - Google Patents

Description

(No Model.) 3 Sheets-Sheet D. H. CHURCH.

.JBWELAPIPING MACHINE. No. 522,046. n Patented June 26, 1894.

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Patented June 26, 1894.

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D. H'. CHU JEWEL PIPING (No Model.)

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D. H. CHURCH.

- JEWEL PIPING MACHINE.

No. 522,046. Patented June 26,

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NITED STATES PATENT OFFICE.;

DUANE H. CHURCH, OF NEWTON, MASSACHUSETTS.

`JEWEL-PIPING MACHINE.

SPECIFICATION forming part of Letters Patent No. 522,046, dated June 26, 1894.

Application filed October 9, 1893. Serial No. 487,621. (No model.)

To all whom it may concern: l

Be it known that I, DUANE H. CHURCH, of Newton, in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Jewel-Piping Machines, of which'the following is a specifi-l cation.

This invention relates to an improvement in the. class of machines shown in my former patent, No. 488,240, granted December 20, 1'892, and the present invention has reference more particularly to a machine for carrying on the processk known as jewel-piping, which consists in treating jewel-settings to adapt them for properly receiving and supporting the pinion, and the object of the invention is to provide means whereby variations in the length of the pinion or in the 'distance between the shoulders thereof are compensated for in the travel of the tool, sothat, when the parts of the watch-movementare assembled, there will be no undue end-shake. Y

To the above end, the invention consists in certain novelcombinations of elements and constructions of parts hereinafter described and claimed.

The accompanying drawings illustrate a construction for carrying out the invention.

Figure l shows a front elevation of a machine embodying the invention. Fig. 2 shows a top plan view. Fig. 3 shows an end elevation of the machine, as viewed from the left of Fig. 1. Fig. 4 shows an end elevation, as viewed from the right of Fig. 1. Fig. 5 shows a longitudinal section of the machine. Fig. 6 shows a cross-section, on line 6--6 of Fig. 5. Fig. 7 shows a section on line 7-7 of Fig. 2. Fig. 8 shows detail Vviews of an adjusting annulus. Fig. 9 shows a detail view of the calipering devices, with a pinion therein. Fig. 10 shows sufficient of a watch-movement to illustrate the application of the invention. Fig. 11 shows an enlarged view of the product of the machine. Figs. 12 and 13 show details illustrating the construction of the supplytube, and the relation'of the carrying-jaws thereto.

The same letters of reference indicate the same parts in all the figures.

A bracket 1, fastened to the stationary bed 2 of the machine, is constructed to detachably support a barrel 3, in which the blanks are stacked in the form of short tubularpieces of brass containing the jewels.' The tube 3 has a stop-piece 3a, projecting out in front of it and connected with it by anarrow neck 3b, and the blanks are fed against this stop-piece, and, while extending across lthe space between the same and the tube, are taken by the jaws hereinafter described. A pipe 4 communicates with the said barrel and with a source of compressed air, and avalve in said pipe is opened periodically through' levers 5 and 6 and pin 7 on a disk carried by the mainshaft 8, to admit pressure to the barrelfor feeding the blanks. f

A rock-shaft 9, journaled in a head 10 on' the bed 2, carries at one 'end an arm 11, to which are pivoted jaws 12, spring-actuated toward each other, and adapted to pass between the stop-piece 3a and the tuloe 3` and take the blank, said jaws passing on either side of the neck 31. The gripping ends of the jaws project beyond the edge ofthe arm 11, as best seen in Fig. 4, and the blank a is held so thatit maybe acted upon from the rear side of the jaws. The arm 11 is swung away from the barrel to take a blank to the chuck 13, through the following means An arm 14, lixed on the outer end of the rock-shaft 9, ex-

.gages a lever 15, and a cam 16 on Vthe 'mainshaft 8 actuates said lever. Aspring 17,`con-` nected with a projection'on the arm 14, retracts the arm 11. A bent tube 18, fastened to the arm 11, is adapted to receive the work when it is discharged from the chuck, and direct it to a chute 19, down which it fallsint'o the head 20 on the bed 2, and is of any suitable construction, and is adapted to be opened and closed periodically by a bell-crank lever 21, a pin 22 acting on said lever, an arm 23 acting on the pin and affixed to a'rock-shaft 24, which carries another arm 25 bearing on a cam '26 afxed to the main-shaft 8 (see Figs. 54 and 6). `The base 27 of the chuck,against which the work abuts, is yieldingly supported by a spring 27, so that when the chuck is opened the work will be ejected. The movement of the said yieldingbase may be limited by an adjustable stop 27h, or left as a variable base having no definite limit of yielding movement.

A plunger, to detach the work from the jaws l2 and enter it into the chuck, is supported in the head l0, and is composed of a rod 28, having an end-piece 2S to act on the work, and a sleeve 29 surrounding the same, the said two parts moving longitudinally to perform the function above mentioned, and being actuated through the following means: A vertical r0ck-shaft 30 carries an arm 3l at its upper end, which arm engages a collar 32 affixed to the sleeve 29; and an arm 33, aiiixed to the lower end of the said rock-shaft, engages a cam 34 on the main-shaft 8. A spring 35 is connected with the arm 33, and aetuates the plunger toward the chuck, and the cam 34 retracts it.

The bed 2 supports a longitudinally-movable tool-slide or carriage 36, which is advanced by a spring 37, and retracted by a cam 38 on the main-shaft, acting through a sliding-bar 39, which carries an arm 40, abutting a shoulder on the slide. Atransversely-movable slide or carriage 4l is mounted in ways in the slide 36, and is advanced by a spring 42, and retracted by a cam 43 on the mainshaft, acting through an arm 44 affixed to a rock-shaft 45, which carries an arm 46 extending behind a shoulder of the slide 4l. This slide 4l supports the tool 47.

The operation of the parts thus far described is as follows: Air-pressure admitted to the barrel 3 moves a blank a into position to be taken by the jaws l2. The arm l1 swings toward the chuck with the blank, but pauses just before reaching the chuck long enough to allow the blank already in the chuck to be discharged into the bent tube 1S. The arm or carrier then moves to position directly in front of the chuck, which has opened, and the plunger advances, and the end-piece 28', acting against the jewel, pushes the blank out of the jaws and into the chuck, and the latter closes on the blank and the plunger is retracted. The carrier returns, and the toolslide 4l moves in carrying the tool the desired distance to remove a portion of the stock of the blank to form ashoulder. Then the slide 36 advances and feeds the tool along, so that it turns down the blank and leaves a shoulder. The tool-slides then return to their normal position, the chuck opens, and the blank is discharged in the form shown in Fig. l1. In assembling the parts of a watch-move-1 ment, this shouldered blank is fitted t0 a recess in one of the watch-movernent plates b (see Fig. l0), and the jewel it contains forms a seat for one end of apinion c. This pinion is shouldered near its ends, and the shoulders 1 should fit snugly to the jewels in the settings a., so there shall be no undue endwise play. The distance between the shoulders is likely to vary in different pieces, and this present machine has been devised to compensate for this in turning down one of the settings. One setting is cut to standard form, and it willbe obvious that, by turning down the other setting more or less in its length, the distance between the jewels will be varied by the engagement of the shoulder with the watchmovement plate. Therefore I have provided in this machine for regulating the turning of the blank by the distance between the shoulders of the pinion. The means employed to effect this are as follows: Referring first to Fig. 5, the feeder hereinbefore referred to carries a calipering device, one member 48 of which is carried by the rod 28, and the other member 49 by the sleeve 29. A thumbscrew 50 is fastened in the rod 2S and extends through a slot in the sleeve 29, and, by looscning this thumb-screw, the rod and sleeve may be adjusted relatively to each other. The collar 32 on the sleeve carries a pin 5l, adapted to act against a lever 52, extending vertically and pivoted at the middle to the head 10. This lever engages a horizontal lever 53 of the same length and pivoted at the middle to the bed. The latter lever engages a stop-plug 54, adapted to slide in a bushing in the bed 2 (see Fig. 7), and said plug limits the advance of the tool-slide 36, which carries a screw 55 arranged to abut the said plug. Said screw is supported in a pendent arm of a bar 56 extending longitudinally of the slide, and fastened at its opposite end to a block 57, supported in the slide and connected therewith by a bolt 58. The stop-plug 54 is brought to the proper position through its connection with the plunger, and is locked at this position through the following means: A rod 59 is fitted to slide transversely in the bed 2, and is adapted to bind against the plug 54. A rock shaft 60, journaled in the bed 2 is cut out at one part (see Fig. 4) to receive the opposite end of the rod 59, so that, upon turning the said rock-shaft, the rod is crowded against the stop-plug. The rock-shaft carries an arm 6l, which bears on a cam 62, and thereby the shaft is rocked and the stop-plug locked at the proper time.

In the operation of the machine, the pinion, as c (Fig. 9), for which the pipings are being prepared, is set in the calipering devices 48 and 49, as shown in said figure, and the set-screw 50 having been loosened, the rod 28 is adjusted until the calipering devices bear against the shoulders pf the pinion, and the set-screw 50 is then tightened. It will be seen that, by this adjustment, the distance of the end-piece 28 from the chuck is determined. Hence the feeder, in order to drive the blank home in the chuck, will be required to move more or less according as this endpiece is farther away or nearer to the chuck. The movement of the feeder is transferred through the connections described to the stopplug 54, and its position is determined accordingly, so that the travel of the tool is checked at the proper position to leave a shoulder on the blank corresponding with the distance between the shoulders of the pinion. In this manner, variations in the pinions are com- IIO pensated for, so that-in the watch-movement there will be no undue endwise play or endshake.

The caliper is adjusted to different grades of pinions, as follows: The member 49 is carried in a slide 70, which has a head 71 with a pin 72 projecting from its inner side. The slide 70 fits a bushing 73 in the caliper frame, and the bushing has a flange with a hole which receives the pin 72. An annulus 74 lits loosely on the bushing behind the flange, and is formed with a series of depressions 75 (see Fig. 8), graded in depth, for the pin 72 to engage. A set-screw 7 6 in the caliper frame binds the slide 70 at different positions to which it may be brought. By loosening this set-screw and turning the annulus 74, the caliper member/.t9 may be adjusted, its position being determined by the engagement of the pin 72 in one of the depressions 75.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A machine of the character described, comprising in its construction a plunger for carrying the work into the chuck, a calipering device which determines the extent of movement of the plunger, and means for rebulating the travel of the tool by the movement of the plunger.

2. In a machine of the character described, the combination of a chuck having a`yielding base, a plunger for carrying the work into the chuck, a caliperi'ng device which determines the extent of movement of the plunger, and means for regulating the travel of the tool by the movement of the plunger.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 8th day of Sep- 4o tember, A.l D. 1893.

DUANE H. CHURCH.

Witnesses :l

(J. F. BROWN, F. PARKER DAVIS.

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