US599356A - Administrators of john reece - Google Patents

Description

6 Sheets-Sheet; 1.

(No Model.)

J-. REEGE, Deod. M. REESE & F. A. SHEA, Administrators;

METAL DRILLING MACHINE.

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Patented Feb. 22, 1898.

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J. REEOE, Deod.

M. REESE & F; A. SHEA, Administrators.

METAL DRILLING MACHINE.

Patented Feb. 22, 1898.

(No Model.) 6 Sheets-Sheet 6.v

' J. REEGE, Decd.

M. REEGE & F. A. SHEA, Administrators.

METAL DRILLING MACHINE.

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Ifiilillll! UNITED STATES MARIETTA REECE AND FRANCIS A. SHEA, OF BROOKLINE, MASSACHUSETTS, ADMINISTRATORS OF JOHN REEOE, DECEASED.

METAL-DRILLING MACHINE.

SPECIFICATION forming part of Letters Patent No. 599,356, dated February 22, 1898. Application filed August 13, 1897. Serial No. 648,187. (No model.)

To all whom it may concern.-

Be it known that JOHN REECE, deceased, invented an Improvement in Metal-Drilling Machines, of which the following description,

in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention is shown as embodied in a machine adapt-ed to drill needle-bars for use to in sewing-machines; but of course it is adapted to bore holesin any desired pieces of metal.

In the machine to be hereinafter described one end of the needle or other bar or piece of metal to be drilled is chucked or held at one I5 end of, as herein shown, a vertically-placed rotatable spindle, the other end of the rod being provided, with a drill-guide, shown as an open foot, which has a running fit in a sleeve-like bushing, said drill-guide being open at its end for the reception and guidance of the drill used to bore the hole in the bar, said drill being carried by a suitable holder, which may be an intermittingly-reciprocating table or bed, the spindle as it is bemg rotated being fed longitudinally to thus gradually effect the boring of the hole as the rod carried by the spindle is forced down slowly upon the then stationary drill.

The particular features in which this in- 0 vention consists will be hereinafter more fully described, and set forth in the claims at the end of this specification.

Figure 1 is a front elevation of a drillingmachine embodying this invention. Fig. 2 5 is a left-hand side view of the machine shown in Fig. 1. Fig. 3 is a right-hand side View of the said machine, the column and the spindle-carriage being partially broken out 5 Fig. 3, a section of the threaded nut and its bevel- 0 pinion d Fig. 4 is an enlarged section below the dotted line :0 of Fig. 3. Fig. 5 is a partial longitudinal section in the line m, Fig. 3. Fig. 6 is a partial vertical section in the dotted line 00 Fig. 1. Fig. 7 is a detail showing the clutch and the device for operating.

it to rotate intermittingly the shaft B and then stop with the drill in elevatedor working position. Fig. 8 shows a 'part of the clutch enlarged. Fig; 9 is a sectional detail chiefly to show the spindle and drill and the means for sustaining them. Fig. 10 is a longitudinal section through part of the clutch and the sleeve c1 operated by it. Fig. 11 is a section looking down below the line 00 of Fig. 9. Fig. 12 shows a top or plan view of the pan or receiver which receives the oil that runs down from the rod being drilled and part of the strainer used therewith. Fig. 13 is a detail showing the latch 71 detached and in side elevation.

The framework of the machine consists chiefly of the base A, carrying a column A,

it having suitable stands to constitute bearings for the rotating shafts to be described. This column is also herein shown as shaped to constitute ways A A on which may slide thedrill table or carrierB and the spindlecarriage G.

The drill-table B has a suitable stud B, over which is passed an eye at the upper end of a link 13 an eye at the lower end of said link fitting over a crank-pin B carried by a disk B fast on the end of the main shaft B intermittingly rotated, as will be described, said shaft being provided with a loose pulley B on which the driving-belt B rests when the machine is not in motion. The shaft 13 has mounted on it loosely a sleeve B to which is secured a fast pulley B of substantially the same diameter as the pulley B on which the driving-belt I) runs when the machine is in action. This sleeve has also fixed to it two additional pulleys B and B The drill-table B has screwed into its upper side a hollow nipple b, in which is placed a split drill-chuck b, it receiving the haft end of and holding firmly a drill b of any usual shape or style commonly employed to drill metal, a set -screw B acting against said chuck to bind the haft. 0

The pulley B receives about it the spindle rotating belt D, which is supported above on two idle-pulleys D D turning about suitable studs on a bracket D extended from the upper part of the column, and thence the said 5 belt is passed about a belt-pulley D connected to the spindle D by a suitable key and spline, so that said spindle may slide Vertically in said pulley. This pulley is chambered, as best shown in Fig. 9, to fit over a bolster D extended upwardly from a bearing D, fast in a stand A of the column A.

The lower end of the spindle D is provided with a chuck having its shank fitted properly in a hole at the lower end of the spindle, said chuck D having its outer end bored, split, and threaded to present a plurality of jaws or fingers to receive between them the upper end of the metallic rod E or needle-bar to be drilled, a cooperating member of said chuck being a threaded nut D adapted to be screwed onto the said threaded fingers to clamp the saidfingers firmly against and so as to hold the rod fixedly with relation to and to be rotated by said spindle.

The spindle D is passed through a bearing 0, having a taper fit in an extension 0 from the carriage C, said bearing being secured in said extension by a suitable nut 0 The spindle has a shoulder 0 and a suitable frictionwasher c of leather, vulcanite, or other usual material, is put between said collar and the lower end of said bearing, and thereafter the two nuts 0 and 0 applied to athreaded part of said spindle, are set up, so as to prevent any end thrust of said spindle in said bearing.

The carriage O has suitably connected to and extended from it an arm 0', provided with a sleeve-like bushing 0 which receives the drill-guide c", it being herein shown as secured to the lower end of the rod E by a suitable set-screw 0 The lower end of this drill-guide is open, as best shown in Fig. 9, to act as a guide for the drill, holding it exactly in the proper position to enter the rod to be bored, the said foot, which acts as a guide for the drill, rotating with the rod in the fixed bushing 0 the latter being cupped at its upper side to receive oil issuing from the spout p of an oil-reservoir p, fixed upon the carriage O, the interior of said bushing being provided with a series of grooves, so that the said drill-guide is always lubricated and runs freely, but with a close fit, in the said bushing, the oil passing out of the said bushing running down upon the drill and into a suitable pan p fixed on the table B in any usual or suitable way, the said pan having, preferably, a reticulated screen p to receive the chips, letting the oil pass into the tray, the oil passing from said tray through a suitable pipe 19 into a receiving-tank p fixed to the table B.

The weight of the drill-table B is substantially counterbalanced by means of a suitable weight, as F, connected thereto by a suitable cord F, extended over a suitable pulley F most of said cord and the said pulley being shown in dotted lines in Fig. 2, because that side of the column supporting said pulley is broken away.

The carriage O has fixed to it and extended backwardly from it through the column a bracket G, said bracket receiving in it a sleeve-like threaded nut d (see Fig. 3%) the threaded inner part of said nut fitting the threaded part of a vertical screw-shaft d, said nut being provided with a bevel-gear d and being free to be rotated intermittingly in said bracket about said screw-shaft by or through the action of a bevel-gear d on the end of a short shaft having its bearings in the said bracket G, the outer end of said short shaft having fixed to it a worm toothed gear d, which is engaged and rotated at suitable times by a worm 61*, fast on a vertical shaft 01 having its bearings in suitable stands (1 fixed with relation to the column, the lower end of said shaft cl having an attached bevelgear d which is engaged and rotated by a bevel-gear d fixed to a sleeve d loose on the shaft I-I, one end of which is extended in the said column and has fast upon it a worm h, the said worm engaging a worm-gear h, having a sleeve-like shank h (see Fig. 6) extended through a suitable fixed bearing h at the end of a stand 77, fixed to the column by suitable screws 71?. This worm-gear has a suitable pin or tappet h (see Fig. 5,) which in the rotation of said gear meets an arm 71], fast on a rock-shaft 72 said rock-shaft carrying an arm h provided'with a dog 77, and also having fixed to it a second arm h provided with a roller or other stud h which, as herein shown, under the action of gravity rests upon the periphery of a cam 71, (shown best in Fig. 7,) said roller when it enters the notch in the periphery of said cam, as shown in Fig. 7, permitting the dog h to drop and engage the tail of a latch 7t pivoted at h on the side of a collar h of the sleeve d loose on the shaft H, before described. When said dog engages said latch, the sleeve 01 and the parts actuated by it remain at rest; but whenever said sleeve is to be rotated then the arm carrying the dog 77 is raised, letting a spring p (shown chiefly by dotted lines in Fig. 8 and connected at one end to the collar h and at its other end to a pin 19 extending from the side of said latch) turn said latch quickly down and put its toe p projected from the side thereof, (see Fig. 13,) in the line of movement of a cam-lump 19 forming part of a loose ring p located at the interior of a pulley h the action of said lump against said toe causing the said pulley to take with it the said latch and sleeve d rotating the said sleeve and parts driven by it until the latch is again caught and released from said pulley by the dropping of said dog. To ease the blow of the lump on the toe p the said collar jO is provided with a pin to which is extended through a slot in the pulley h, where said pin h'as connected to it a spring h, the opposite end of said spring being fixed to a stud carried by said pulley. The sleeve is rotated, as herein shown, about eight times before the clutch is released, and during that time the shaft B has imparted to it one complete rotation. The pulley h is driven continuously by a cross-belt 72 set in motion by the pulley B before referred to;

The pulley 71 is fast on the shaft H, (see Fig. 10,) and so is the worm h, andthe said shaft and worm are rotated continuously, the latter by its continuous rotation rotating continuously the screw-shaft cl, employed to feed down the spindle and its carriage O. The continuously-rotated worm-wheel h acts also as a controlling device for moving the arm h to effect the release and engagement of the latch with the said pulley h at desired times.

The cam h is attached to or forms part of a toothed wheel 6, keyed on the main shaft B and said toothed wheel is engaged and rotated by the pinion 6, fast on the sleeve d before referred to.

The screw-shaft d has keyed upon it near its lower end (see Fig. 6) a beveled gear 6 the inner end of which is provided with a conical face 6 which fits closely and snugly the wall of a conical cavity in the top of the worm-wheel h, a sleeve-like shank e extending down from the said beveled gear 6 in the sleeve h2 of the said worm -wheel h, said shank having there screwed upon it a beveled gear (2 Below the said beveled gear e the said shaft d has applied to it a nut e, the chief purpose of which is to act as a stop for the gear 6 so that it will not be accidentally unscrewed entirely from the end of the shank e So long as the beveled gear 6 is screwed up firmly against the sleeve-like end of the worm-wheel h the latter gear will effect the rotation in unison with it of the screw-shaft d and the continuous depression of the carriage O and the continuous rotation of the spindle D and during this time the beveled gear e in engagement with the beveled gear f fast on the shaft f is rotated in the bearing f6 The rock-shaft it has pivoted loosely upon it, near the latch h, a pawl r, kept depressed by a spring 7*, the forward end of said pawl resting on the collar 77. and clicking over a notch at the periphery of said collar, as shown in Fig. 7, said pawl preventing any retrograde motion of the sleeve (Z The bracket G has extended from its side a suitable eye, as T with which is connected a cord or chain 7 extended over asuitable pulley r, the opposite end of said cord being attached to any usual or suitable counterbalancingweight to substantially counterbalance the weight of the carriage O.

The belt B is under the control of a fork r of a belt-shipper rod r a portion of the said belt-shipper rod sliding in bearings and another portion 0 of said rod sliding in a second bearing 1 the end r of said rod having an extra bearing 1, against which is placed one end of a spiral spring T The part 1" of said rod has fastened to it a block 7- which acts against one end of said spring W. The block 0* is'connected by a link 1' with a shipper-lever r pivoted at 1, the upper arm of said lever having a suitable pin at its rear side, which when the lever is moved to the left, viewing Fig. 2, suffi iently to cause the fork r to pass the belt B onto the fast pulley B passes under a hook 7", connected to or forming part of a releasing-lever r pivoted at W, said lever r having an end r whichwhen the carriage has been fed down as far as it is desired to drill a hole in the rod or bar E causes an adjustable knock-off 7', held in a suitable ear 1", projecting from the bracket G, to strike the end 0"" of the releasing-lever r and remove the hook r from the pin of the shipper lever, and immediately thereafter the spring r acts and throws the belt from the fast upon the loose pulley B. The rock-shaft h is provided at one end with a suitable hand-lever s, which may be engaged by hand whenever it is desired to operate the arm 7L9 independently for any purpose.

In the operation of the machine the screwshaft d is rotated continuously to the right, Figs. 4 and 6, and the screw of said shaft, working slowly, continuously depresses the carriage O, and with it the spindle and rod E, to be bored, and to enable the chips, &c., to be removed from the bored hole the drill is automatically pulled temporarily out of the hole being bored. This taking of the drill out of the hole is done by rotating the shaft B from the position shown in Figs. 1, 2, and 6 for one rotation, thus putting out and immediately putting the drill back again into its normal working position. The shaft 13 is so rotated as to raise and lower the drill-table B, carrying the drill, whenever the latch 71 is caught by the dog h ,'and at this time the toothed gear 6 is rotated by the pinion e to thereby rotate the shaft B one complete rotation. The said. sleeve rotates with it the bevel-gear cl, the shaft 01 and the worm d and causes said Worm, it acting through the worm-gear d and the bevel-gear d to rotate the sleeve nut 01 in adirection to effect the lifting of the carriage O for an amount substantially equal to the amount which the screw cl would have depressed the carriage while the drill was being removed from the hole and again raised into working position, and were it not for so raising this carriage 0 between the time of pulling out the drill and putting it in again the end of the drill would strike hard against a solid surface, Whereas lifting the carriage C sufficiently to compensate for the lowering of the carriage while the drill is being pulled out of the hole and is being again elevated into p0 sition for work enables the bored end of the rod to be gradually put against the drill, so that the drilling will be done without shock to the tool, and in this way 'it is also possible to keep the stock running at a very high speed, which. would not be the case if the spindle had to be stopped in its rotation while the drill was lowered and again raised into its working position. The bar or rod E having been drilled for the required depth, the spindle and carriage must be run up, and this is herein provided for to be done by hand. To do this, the operator engages the set-nut f and turns it on the short shaft f having the pinion f in engagement with the bevelgear a before referred to and looks or sets the said shaft frictionall y, so that its rotation will be stopped, and then the operator engages the hand-lever f, slides its notched hook f longitudinally on the shaft on which it is mounted loosely, until the notch of the said hook engages the pin f on said shaft, and further rotation of the handle f rotates the said shaft and the gear f and its engagement with the crowning-teeth of the bevel-gear 6 turns the said bevel-gear, and the bevel-gear 6 it being restrained from rotation, causes a loosening of the contact of the bevel-gear c .with the shank of the wormwheel h and lets the bevel-gear e and the shaft d be turned to cause the screw on the shaft 01" to run up the carriage while the wormtoothed gear remains at rest.

The rotation of the shaft d" and the consequent depression of the carriage C for any purpose may be temporarily checked by the operator, when desired, by setting tight the shaft f, it thereafter loosening quickly the bevel-gear 6 Having described the invention, what is claimed, and desired to be secured by Letters Patent, is

1. In a machine for drilling a metal bar or rod longitudinally, a carriage havinga spindle provided with a chuck to hold the rod or bar to be drilled, a drill and means to hold it, a drill-guide mounted on and projecting beyond the end of the bar or rod to be drilled, a bushing in which the said drill-guide is placed to center the bar or rod with relation to the drill, and means to change the relative longitudinal positions of said drill and spindle while the drill acts to drill a hole in said bar or rod, substantially as described.

2. In a machine for drilling a metal bar or rod longitudinally, a carriage having a spindle provided with a chuck to hold the bar or rod to be drilled, means to rotate said spindle and to feed said carriage longitudinally, a drillguide carried by the end of said bar or rod to be drilled, a bushing to receive said drillguide, a drill, means to support it, and meansto intermittingly reciprocate said drill to pull it out of the drilled hole and to clear it of chips, and to then put it back again into said drilled hole to continue the drilling operation, substantially as described.

3. In a machine for drilling a metal bar or red longitudinally, a carriage having a spindle provided with a chuck to hold the bar or rod to be drilled, means to rotate said spindle and to feed said carriage longitudinally, a drillguide. carried by the end of said bar or rod to Y be drilled, a bushing to receivesaid drillguide, a drill, means to support it, and means to intermittingly reciprocate said drill to pull' again put into the partially-drilled hole in the said bar or rod, substantially as described.

4. A drill, a drill carrier or table upon which it is mounted, a rotating spindle adapted to hold and rotate the bar to be drilled, means to rotate said spindle, means to move said spindle continuously in the direction of its length, and means to reciprocate said drill carrier or table at intervals while the spindle continues to rotate, substantially as described.

5. A spindle having a chuck, means to rotate said spindle and to move the same longitudinally progressively in one direction, and means to intermittingly impart a retrograde movement to said spindle, combined with a drill and means to move it intermittingly longitudinally, the retrograde motion of said spindle taking place while the longitudinal motion of the drill is being effected, substantially as described.

6. In a drill, a rotatable spindle provided with a chuck to hold the'bar or rod to be drilled, a bushing, a drill-guide surrounding the end of the bar or rod to be drilled and having a running fit in said bushing, said drillguide being provided with a hole below the bar or rod, said hole corresponding in size to the drill, combined with a drill to enter said drill-guide and contact with the end of the bar or rod to be drilled, substantially as described.

7. In a drill, a rotatable spindle provided with a chuck to hold the bar or rod to be drilled, a bushing, a drill-guide surrounding.

the end of the bar or rod to be drilled and having a running fit in said bushing, said guide extending opposite the end of the bar or rod and provided thereat with a centering-hole for the drill, means-to supply oil to said bushing, combined with a drill to enter said hole in the end of said drill-guide and contact with the end of the bar or rod to be drilled, substantially as described.

8. In a drill, the following instrumentalities, viz: a vertically-movable carriage, a rotatable spindle mounted thereon and having a chuck to hold the bar or rod to be drilled, means to rotate said spindle continuously, at bushing also supported by said carriage, a drill-guide having a running fit in said bushing, a drill, a drill carrier or table on which said drill is mounted, means to operate said drill carrier or table intermittingly, whereby it may be held stationary periodically and be then run down and up again, said drill by said movement being drawn from and then put again into said drill-guide, and means to automatically turn said carriage and spindle continuously toward said drill-table, substantially as described.

9. In a drill, the following instrumentalities, viz: a drill, a carriage, a spindle mounted thereon, means to rotate said spindle continuously at high speed, means to feed said carriage and its spindle continuously toward said drill, means to intermittingly move said a chuck and mounted in said carriage, a

bracket attached to said carriage and provided with a threaded nut having an attached gear, combined with a screw-shaft entering the said threaded nut, means to rotate the said screw-shaft to move the said carriage in one direction, a. pinion engaging the pinion of the said threaded nut, and means to intermittingly rotate the pinion in engagement with the pinion of said threaded nut to reverse the motion of said threaded nut, turning it on the said shaft in a direction opposite that it would be turned by said screw to temporarily and intermittingly raise the said carriage vertically with relation to the said screw, substantially as described.

11. In a drill, the drill, the table or carrier upon which it is mounted, a rotating shaft having a toothed gear, a crank and link connecting said shaft to said table or carrier, a pinion to engage said toothed gear to rotate said shaft, and a clutch to intermittingly op-' erate said pinion and then leave it at rest, substantially as and for the purpose described.

12. In a drill, the shaft H, the sleeve 13 mounted thereon and provided with a pinion, a constantly-moving pulley, a latch carried by said sleeve and adapted to be engaged at intervals by said pulley to rotate said sleeve, a worm-shaft having a bevel-gear in engagement with the bevel-gear of said sleeve, a worm-gear engaged by said worm, a shaft on which the said worm-gear is mounted, said shaft having a bevel-pinion, combined with a threaded nut having a bevel-pinion, a screwshaft on which said threaded nut is screwed, and means to positively rotate the said threaded nut, substantially as and for the purpose set forth.

13. A drill table or carriage, means to antomatically reciprocate it intermittingly at intervals and to leave it at rest for intervals, a guideway on which said table or carriage is mounted, and a drill carried by said table or carrier, a chuck to hold the article to be drilled, and means to feed the latter toward said drill, substantially as described.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

MARIETTA REECE, FRANCIS A. SHEA, Administrators of John Reece, deceased.

WVitnesses:

MARION LEWIS, BRADFORD W. ANGELL.

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