USRE3489E - Improved machine for turning pillars for clock-movements - Google Patents

Description

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W H. NETTLETON., OF BRISTOL, CONNECTICUT, ASSIGNEE OF WILLFORD H. NETTLE TON, CHARLES RAYMOND, AND ANSON'EIATCH.

Letters Patent No. 18,661, dated November'l, 1857; fressnelNo. 3,489, dated June 8, 1869.

` rIMPfROVED MACHINE FOR Tl'J'RNING PILLARS FOR CLOCK-MOVEMENTS.

'ihe Schedule referred to inr these Letters Patent and making part of the same.

To au whom t may concern Be it known that WILLFORD H. NETTLETON, CHARLES RAYMONI'), `and Anson HATCH, all' ot' Bristol, in the county of Hartford, and State of Gonnecticut, did invent certain new and useful Improvements in Means for Turning Pillars, Glock -Work Shafts, and Arbors"ofOlock-lidovements; and the following is hereby 'declared to be a full, clear, and exact description of the construction and operation of thesamc, reference being had to the'annexed drawing, making part of this specification, wherein- Figure 1 is a plan of the machine complete;

Figure 2 is a cross-section, at the feeding and holding-jaw, on the line 1 1; and Figure 3 is a cross-section at the-line 2 2, showing the compound feeding-lever.

Similar marks of reference denote corresponding parts.

In turning pillars for the frames of clock-movements, lock-works, shafts for the striking-gear, or rounding the ends of arbors or pinions, wires for insertion in the respective parts', or making other articles of wire or rods, it isnecessary to straighten, cut, andv then hold the wire of .which said parts are formed whilev the ends are'being turned. The straigl'itening is sometimes performed in a separate machine, the wire' is then cut up into lengths, and then turned.

This machine is adapted to perform all the operations of straightening, cutting, and turning the said lock-work shafts or arbors, and deliveringthe same in a finished state, or it can be applied, by a small attachment, to feeding and turning blanks that may have'heen previously straightened, and cut off into lengths, thereby effecting considerable saving in the cost of manufacturing such articles, and producing ,superior work.

In the drawinga is the bed of lthe machine. p

b is a straightener, revolved by a band to the pulley 3, and formed with screws 5, operating on the wire, 4, as the same passes through between the points of said screws 5 5, to ,straighten said wire in the usual manner, and it is remarked that any desired revolving straightener may be employed.

If the straightener alone were applied to the wire, the same would not actv uniformly, because the wire is fed in suddenly to the machine, and, at such times,

said wirewould draw through the straightener b without being fully straightened. This straightener is therefore, mounted on a block or carriagend, set in slides c e, and a spring, d', is provided, which tends to force the said straightener away from the feedingapparatus. The operation of this part of the apparatus is, that when the feeding-part of the machine draws the wire along,

with it, and then runs back gradually, by the operation of the spring d' or its equivalent. straightening the Wire as it moves.

v o is the main shaft of the machine, supported in. the bearings 7, 7, and driven by competent power applied to the pulleys 6 (i or otherwise.

f isthe cam that actuates the feeding-apparatus, as

follows: y

y h is the feeding-block, set to move on slides 1l, and moved back and forth by a compound lever, fi, set on a fnlcrum, 12, which lever is acted upon to give the 'sidewise motion by the part 16 of the cam f, and a spring, 15, keeps said lever toward the cam 16. f

g is a hollow screw, through which the wire, 4, passes, and said screw, taking the block h, determines the point to which said block is allowed to return by the spring 15, and consequently the amount, or length of wire fed forward each motion. n'

The wire, 4, passes througha slot in the bolt 13, and beneath the ends of the friction spring-clamp 14. This clamp is relieved as the block h slides back, and clamps upon the wire, to feed the same as the said block is moved forward by a compound action ofthe lever t', as follows:

The lever t is formed with a lower piece, 19, that sets witha slot around the lower part of the fulcrum 12, and has a fulerum, 20, at the end of the said lever i, near the slide h, and the bolt 13 passes through this lever 19, and terminates with a nut. y

17 is a cam-piece on the hub of cam f, acting on the end, 18, of the lever 19, which is turned up so as tobe higherthan the end of the lever i.

It will now be seen, that the cams being properly shaped and timed, the levers t' and 19 move on the fulcrnm 12 horizontally, and give motion to the block h, and at the same time the lever 19.is given a com- 9 is a lever ou a fulcrum, 10, which` holds the wire, 4, passing beneath it, except when said wire is being fed along, at which time, the end of said lever 9, dropping into a depression, 8, of the cam f, the hold of .said lever on the wire is relieved.

The wire, 4, passes through a hole in the shears, or cutting-slide l, and also through the holding-jaw le, and its exact length is determined by a gauge-slide, m, which is moved by the cam z z.

Theca'm n is used to give a forward motion to thev holding-jaw k, and then retain the. same lstationary while the ends of the wire are beingturned, and then allow the said jaw 'k to return t'o the position shown in the'vdrawing,.and the parts are so timed that the the straightener slides-bodily wire, 4, is fed along, and forces out the turned pillar pound motion, to clamp the wire, by pressing down block h draws back,the said lever 19 acting to clamp or arbor from the ljaw k. The gaugeslide m thenl comes up by the cam z z, to determine the length of,v

vthe blank, and then the cutting-slide, or shear Z is moved by the cam 21, which separates the blank from the vcontinuous wire, and the jaw k is again Aprojected forward, audf'held by the cam n'.

The holding-jaw k is set in slides lv lv, andisprovided with a movable tail-piece, 25, that takes the cam n, and is adjustable,to allow for any wear, and the jaw 26, forming one side of the holding-jaw It, is fitted on screwbolts 27, aroundwhiph are helical springs, tending to keep the jaws closed, hut not so lstrong as to prevent the wire, 4, passing freely'into the hole, for its reception, that is made between said jaws, and formed conioally at its end.

In order to clamp the blank within these jaws while being turned, the screw 29 is used in the fixed head p, against which the moving jaw 26 is pressed by the cam n.

28 is a screw, passingfreely through the head 1), into the jaw k, by which'screwthe said jaw is adjusted to stand at the proper point for receiving the wire 4.

The turning of the ends of the blanks, to form pillars, arbors, 85o., is effected by chucks t, having proper tools, 32, secured inthem, for forming the ends ofthe pillars into the shape shown in Figure 4, or'ito ar y other desiredform.

These chucks t are mounted on mandrels, 31, and rotated by competent power applied to the pulleys s s, and the mandrels are vmounted iu suitable heads, qu', one of which,'q, is xed to the bed a, and the mandrel slides through it; the other, fr, is set in slides, 30, so as to` move bodily along.

Endwise motion is given to the mandrel by means of cams u u', on the shaft e, acting on levers u v set on fulcra, 33, with returning-spring`s, 34, and one lever, v, Ais connected to the sliding mandrel 31 bya block, 35, receiving a ball at the end of said mandrel, and the other lever, e', is connected to the sliding head 'r at 36.

Having thus described the construction and operaltion of the said machine, it is remarked, that where it becomes necessary to lit our machine so as to use it with blanks already eut up into proper lengths, we simply remove the lever 9, and attach the hopper, or

slide 37, shown in Figure 5, into which the blanks are r placed in a horizontal position, and the lower blank is pushed ont, every vibration of the slide or feeding- Iblock h, by a stationary pusher, attached in place of the wire, 4; and, to retain -said pusher to the said feeding-block, we force the lever 19 down by ascrew, 38, `that.passes:through the lever i.

The jaw It might have an oscillating motion on a centre, instead of a sliding motion, but it is preferred 'that the jaw be fitted in the manner shown.

No claim is made herein for the use of two chucks simultaneously brought up tov turn the ends of a wire, to form a pillar, shaft, or arbor, as the same. has been in use and on sale for many-years. 1@Tei'ther is any particular device claimed for holding the turning-tools:

ters Patent, 'ls-.

1. The combination, substantially as described, of'

the wire to he operated-on; the` straightener and its sliding carriage, or support; mechanism forv drawing forward the wire, and with it the straightener' and Vits carrier; mechanismyfor holding the wire in a /xed position after each success-ive drawing, or feed forward; and mechanism for gradually forcing the straightener and its carriage back to their original positions after each movement forward, for the purposes of straightening the wire and feeding it up to the cutters and jaws.

2. rlhe compound levers i and 19. made and acting in connection-with the feeding-slide h and clamp .14,

substantially as and for the purposes specified.

3. The holding-jaws hand 26, constructed and combined substantially as described, in combination with the'screws 28 and 29 and the cam n, substantially as and for the purpose set forth.

4. The holding-jaws k and 26, constructed and conibinedrsubstantially as described, iu combination with the screws 28 and 29, cam n, and turning-tools, 32, substantially as and for the purpose set forth.

5. The combination ofy the feeding-device h, hopper 37, jaws k and 26, and .the turning-tools, 32, as and for the purpose set forth.

In witness whereof, I have hereunto set my signature, this 1st day of April, 1868.

W. H. NETTLETON Witnesses:

GEO. D. WALKER, CRAs. H. SMITH. Y

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