US617431A - Work-feeding mechanism - Google Patents

Description

Patented Jan. to, I899.

MCC.,YOUNG.

WUBK :FEEDING MECHANISM.

p (Application filed July 22, 1898. (No Model.)

witnesses Patented Ian. l0, I899.

M00. YOUNG.- jworm FEEDING MECHANISM.

(Application flied July 22,4898.) I

' 8 Sheets Sheet'2.

(No Model.)

' INVENTO/i y/(7 W/TNESSES4 Patented Jan. l0, I899.

. Nu. 6l7,43l.

Mac. YOUNG. worm FEEDING MECHANISM.

7 (Application filed. July 22, 1898.)

EPSlieets-Shet 3.

{Nd Model) A H-NE y.

WITNESSES..- MKW Wk N0. 617,43l. f Patented lan. l0, I899.

MCC. YOUNG.

WORK FEEDING MECHANISM. (Application filed July '22, 13 98.)

(No Model.) 8 Shets-Sheet 4.

wivtwzmm Patented Jan. 10, 1899.

M06. YOUNG-r WORK FEEDING MECHANISM.

7 (Application filed m 22, 1898.) (No Model.)

8 Sheets-Sheet? VENTOH Arron/vb WITNESSES Pat ented Jan. |0, l899.

MCC. YOUNG.

WORK FEEDING MECHANISM.

I (Application filed July 22, 18,92?) (No Model.)

I NVENTOI? WWW m 1 fiJ,

. ATTORNEY.-

W W &\ 5 J) i i i i i i i i I WITNESSES: m w m No. 6|7,43|. Patented Jan. l0; i899. M00. vouws. WORK FEEDING MECHANISM.

(Application filed. July 22, 1898.)

(ND Modem 7 8 Sheets-Sheet 7.

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, Patented Ian. l0, I899 MCC. YOUNG. WORK FEEDING MECHANISM.

(Application filed July 22, 1898.)

8 Sheets-Sheet 8.

(No Model.)

wi twmm n w W '5 positions to receive the holes or tufts at the a-tufted] Inmachines of this character, of which United St-ates; Letters Patent No. 78,907,'granted";to me 011 the lfithdayof March, 1897, is an" example, the brush-block.

' these mechanisms, or eitherofthem, a brusll 3 a horizontal sectional elevation of 'my improved mechanism applied'to a brush-matical sectional elevation on the line a a of Fig.

ondary supporting-frame for the same. Fig.

ism, of which the following .is a specification.

v ing-tool, by which holes-are bored, and it. is then moved-beneath a'tufting-tool, which Fig. 1'. 'Fig. 5 is an end elevation as viewed] the fixed guiding-frame. Fig. is an end UNITED."

Mc'oL I TooK PALMETTO"FIBRE COMPANY, OF ILLINOIS.

: woRkJFEEo Nc MEC NISM.

YOUNG, OF,FREDERIoK,fMAiZtYLAN1), AssIeNoR To THE srnorrrcn'rron forming m of Iietters Patent No.- 617,431, dated January 10,1899.

Application filed my 22, 1898.

To all whom it may concern: v

Be it known that I, McCLIN'rocK YOUNG,- of Frederick, county of Frederick, and State of Maryland, have invented a new and useful lmprovement in Work-Feeding Mechan- This inv entionhas reference to a work-feed: ing device for use more particularly, but not necessarily, in connection with brush-ma chines in which-the brush-block is bored and is supported on a fixed'table beneath a bordrives' and secures the tufts in the holes.

. The present invention-has for its object theautomatic feeding of the blocks to the borer or .tufter'; and it consists-in combining with block support and improved means for auto--. matically feeding the support to present the brushblock successively in predetermined proper points; i

- The invention also consists in the details or, construction and combination of parts hereinafter described and claimed;v f Inthe accompanying drawings,:Figure .1 is

chine in which the brush-blocks are bored and tufted. Fig. 2 is a similar view with the parts ina diifere'nt position. Fig.3 is aver- 1. Fig.4 is asimilar view on the line b b ofv from the opposite side of the machine. *Fig. 6 is a verticalsection through one of the camcam-wheels. Fig. 8 is a top plan viewof the brush-block support .and the block-holders proper. Fig. 9 tea top plan view of the sec- 9 is an end elevation of the secondary supporting-frame. Fig. 10 is a top plan view of elevation of the same; Figlll is a-horiz0n-- tal sectional elevation, onan enlarged scale,

on the line f f of Fig. 3, showing the mech-" anism for automatically stopping the machine. Fig. 12 is a vertical sectional elevation of the same onthe line 0 c of .Fig. .11.

,machine in which the block is bored and tufted, the "automatic mechanism being formed ,to feed two brush-blocks simultanea ously, one a blank block beneath the borer to receive its 'holes and the other a bored block vbeneath the tilfter to receive the tufts; I but it will be understood that'the mechanism may be employed as welL to feed,the blank block in an independent boring-machine or it may be-emplo'yed-to-feed a bored block in 'amachine in which the tufting operation 7 I fdnlyfis accomplished the essenceof the in 'vention residingin theautomatically-operab to receive its holes ortufts in predetermined ing mechanism for feeding the brush block positions.

Referringmore particularly to'Figs. 1 to 5 V 2 represents the frame ofa brush-machine of "{the character illustrated and described in the patent referred to.- 3 represents a boring tool for forming the holes inthe brush-block, and

the frame, from which motion is imparted to a driving-pulley 5, clutched to a secondary driv- 4 a tufting-tool for seating the tufts'in the" l ing-shaft 6 bymeans of :a clutch mechanism 7, more fully described hereinafter. The foregoing parts form nopart of the erence may be had fora more detailed description. a

tained beneath the -boring:and tufting tools, as shown more particularly in Figs. 3,.8, 9,

"present invention, being described and illustrated in the patent alluded to, to. which ref andlO, on a bracket 8, fiXed totheframe of the machine,'and thismechanism comprises a fixed guiding-frame 9, a secondary movable fiame 10, supported thereby and movable longitudinally thereof,and a brush-block-supporting-frame 11, sustained by'the secondary frame and movable with respect to the same transversely of the fixed guiding-frame. As a result of this arrangement the brush-blocksupporting frame is movable both longitudinally andtransversely of the fixed frame, so

that theblocks may be fed laterally to edect' the spacing of the holes in the rows and longitudinally to effect the spacing of the individual rows, as will be more fully described hereinafter.

Thefixed guiding-frame 9 extends rearward, as at '12, and laterally tooneside, as at 2 1 crossing each other at right angles and rml-y secured together in fixed relations at the point of intersection. The rail2 0 is adapted to rest on the central rib 15 of the" guidingframe, between the friction-rollers, the secondary frame being thus freely movable longitudinally of the fixed frame.

The brush-blocksupporting frame consists of a fiat rectangular plate 22, adapted to rest on the cross-rails ofthe secondary frame, and

is movable and guided in the direction of the cross-rail 21 by means of two pairs of frictionrollers23, journaled on the under side of the plate,near its'frontand rear,and arranged to bear against the opposite sides of the rail 21. The brush-blocks are adapted to be held on the block-supporting" frame side by side, re

BpectiVeI'y beneath the boring and tnfting tools, as shown in Fig. 1, and each is firmly clamped between'lugs 24 on block-holding plates 25 by means of clamping-levers 26,,

formed with c'am-surfaces'adaptedto bear against the side oflthe block. Theiholdingplates are removablyseated on the block-supporting frame, which latter is'provided with two parallel ribs 2'7, undercut in their outer edges, and two undercut lugs 28, the edges of the holding-plate being adapted to extend in the undercut portions of the ribs andlugs. Near its rear edge the supporting-frame is 1 provided with two stop-pins'29, against which the rear edges of the holding-plates are adapted to abut, and two locking-pins 30' are provided near the'front edge of the supportingframeto bean-against the front edge of the holdingplates to retain them firmly in posi 'tion.

These locking pins extend but a short distance above the surface of the supportingframe, and the holding-plates are sprung in place over the locking-pins, and being pushed rearward against the stop-pins they rest flatly on the supporting-frame between the pins ."and ribs. -'lhe holding-plates may beremoved by grasping pins 1l1, ffixed near the forward edge of the same, and lifting the plates free of the locking-pins,when they may be drawn forward from between the ribs. The foregoing construction constitutes a simple and effective means for holding the brushblocks removably but securely in fixed relations on the block-supporting frame, the arrangement admitting ofthe rapid removal of the finished brush from beneath the tufter; its replacement by the bored brush,'and the application of a new blank block beneath the borer, these operations being performed when all the holes in the previouslyebored block have been filled by the tufter and when all the holes in the blank block have been bored.

The block-supportingframe,with the brushblocks held thereon, respectively, beneath the boring and .tufting tools, as described, is adapted by the ,mechanism now-to be described to be moved intermittently to the left in Fig. 1 to eflect the spacing of the holes of the rows and at intervals forward to effect the spacing of thejndividual rows. These movements of the supporting-frame are controlled by two horizontal rotary cam-wheels 32 and 33-, (see Figs. -1 and 2,)vmounted on ,studs rising, respectively, from the upper side of the lateral extension 13 and rear extension 12 of the fixed guiding-frame The cam-wheel 32 controlsthe lateral movement of the block-support'through'the medium of an arm 35, pivotedat itsirear end on a verti- ICO cal axis, as at 35, and having at its front end a friction-roller 36, hearing against the edge of the supporting-frame, which latter is urged constantly to the left by means of a weight.

37 attached to a cord 38, passing over a guide pulley 39 and fixed at its end to the support, as at 40. The pivoted arm 34 has joined to it between its ends one end of a link 41, the opposite end of which is pivoted to a lever 42, which is in turn pivoted to the guiding-frame, as at 43. A pin Mextends upward from the link 41 bctween'itsendsand bears against the edge of the cam-Wheel and is held yieldingly in engagement there'- with through its'connection with the pivoted arm 34, which is subject to the action oi the weight The general contour of 3 the camwheel issuch that as it is rotated the blocks, support will be caused to reciprocate later-'- ally, its movements being effeeted'alternatel-i by the weight and cam, theformer urging it to the left and the cam moving it in the op posite direction; To effect this reciprocatingmovement, the edge of the cam-wheel presents a Wavy outline extending inward and outward alternately, as at 45 and 46, each inward and outwardsurfacebeingstepped. Assumingthe cam-wheel is moving in the direction'of the arrow in .Fig. 1, the edge of the wheel extends inward step bystep unti-l the innermost surface 47is reached, when it extends out again step by step until the outermost surface 48 is reached. Y Aseach stepped surface is brought -'opposite the pin 45 the block-support will be moved by the weight intermittently to the movement and presenting the blocks succes-v sivelyin thepredeterm'ined-positions, respecleft step by step, coming to a full stop at each gages the pin 44L and forces'the block-support backstep by step against the influence of the weight, thereby presenting the blocks to the proper predetermined positions beneath the borer and tnfter' to bore and fill the second row. It will be seen that the stepped sur-' faces of the inward and outward cams are formed by inclined "surfaces 49;to' effect the movement of the block-support between the holes andcurvedsurfaces 50 to v provide for the. temporary pause of the blocks while the borer: and tufter are operating. 1

The cam-wheel 33, by which the block-support is moved forward to space between the rows, has itsedge formed with a -series of long curved surfaces 51, joining each other by inclined' outwardly-extending surfaces 52 as shown in Fig. 1. The edge'of'this wheel engages.

a pin 53, projecting'upwardfrom a link 54, connected at its rear end to a lever55, pivoted to the guidingframe. At its front end the linkispivoted' between the ends of an ,arm

56 pivoted to the frame, as at 57, and at its.

' 'bg'gposite' endthe arm is provided with a fricn 'roller 58, hearing against the rear'edge I weight 59, attachedto a cord 60, passingover the pulley 61 and-secured to the support 62.

Assuming'that the camwheel rotates in the direction of the arrow in- Fig. 1, the support will remain at rest until the inclined surface engages the pin,='when the arm 56- will be moved outward, thereby forcing the support outward a distance representing the space between .the rows of holes in thebru'sh-block:

This movement of the support takes place, as

before stated, at the end of each reciprocating movement or action of thecam-wheel 32, the result being that by the combined actions of the two cam-wheels the brush-blocks are moved beneath the borer and tufter in one direction laterally'of the blockstep by step to form one row, then longitudinally of the block to space for thenext row, then step by step in the opposite direction laterally of the block to bore and fill another row, and so on.

The cam wheels are so formed that there a will be bored and tufted in each block twelve rowsof four holes each. Of course the relative number of holes and rows may be varied f the block-support The support is urged constantly against the pin. by means of a 'to suit the fancy by varying the form and arrangementof the cams. In order that the cam-wheels may be 1'0- t-ated to effect the movements of the support described, I provide each wheel-on its upper side with a circular series of ratchet-teeth 63 and- 64, as shown more particularly in Figs.

'1, 3, 5, and 6,which teethare adapted to be engag'ed,respeotively,by vibrating pawls 65 and 66. (See Figs. 1' and 7. These pawls extend in opposite directions from studs 68 and 69, projecting laterally from the upper ends of arms 70 and 71, which are fixed to the ends of a rock-shaft 72, mounted in bearings 73 on the fixed guiding-frame, between two wheels. The shaft is rocked by means of an eccentric 75, Figs. 3 and 4,0n' the secondary drive-shaft 6, connected by a pitman 76 to the end of an arm-77,projectihg from the arm 70. When -theshaft is rocked, the pawl will be moved back and forth and, engaging the ratchetteeth, will rotate the cam-wheels step by' step. It-will'be understood, of course, that'other means'for rotating the cam-wheels may be employed; but I prefer that shown, as being simple andeffective.- In order toprevent the back or forwardslip of the wheels, I provide spring-fingers 78, fixed to the guide-frame and having their free ends arranged to bear, respectively, against the vertical sides of the series of ratchet-teeth. As shown in Fig.7, the pawl which drives the cam-wheel 32 is acted on by a spring 79, fixed to the frame and bearing on the end of the pawl. This spring serves to hold the pawl in engagement with'the'teeth, insuring its proper and uniform action; In order that when all the holes .in theblocks have been formed and tufted the finished block may be removed, the bored block set beneath the tufter, and a new blankset beneath the borer, Iprovide for automatically operating the clutch 7 'to disengage the driving-pulley and thereby stop the machine. This clutch comprises a dog 80, pivoted on a disk' 81, fixed to the drive-shaft and adapted to be moved bya spring 82 to engage a series of pins 83 on the hub of the driving-pulley,which is mounted loosely on theshaft. The clutch is disengaged by moving a roller83 in the path of the dog and thereby disengaging the same from the pins on the driving-pulley. The

roller is mounted on an elbow-lever 84, pivoted on an arm 85,'fixed to the frame,and it is con .nected by a pitman'86 to the inner end of an operating-lever 87, Figs. ll, 12, and '13, mounted between its endson a pivot-pin88, sustained by a frame 89, adjacent to theicamwheel 32, the arrangement being such that the elevation of the pitman by the upward,

movement of the innerend of the lever will move the roller 53 in thepath of the dog and disengage theclutch. In order that the lever may be moved at the proper time and automatically'to thus disengage the clutch, I provideithe lever with an arm 90, having on its end a friction-roller 91 arranged. to bear on lifts theoperatin'g-lever, its outer end is lowthe upper surface of a circular cam extending upward from therotarycam-wheel. lhe

cam-surface is of uniform height, except at 93, where it suddenly curves upward, (see pitman and moves the roller 83 in the path of the dog and disengages .the clutch, thereby The raised instantly stopping the machine. cam-surface'93 is situated with relation to the operating-lever to engage the same after the last row of holes has been bored and tufted,-

and at this moment the machine is automatically stopped to permit the brush-blocks to be changed.

' In order that the lever may be maintained in a raised position and the clutch disengaged until the attendant is ready to begin opera-y tions anew,"I provide an automatic lockingpin 94., mounted to slide horizontally in the frame 89, with its inner end in, position to engage over the outer end of the operating lever, as shown by dotted lines in Fig. 12. This pin is acted on by a spring 95, which tends to hold it inward, and when the roller is traveling on the lower part of the cam-surface the outer end of the operating-lever is elevated and the locking-pin bears against the same. When, however, the raised cam ered and the pin springs in-over the same and holds it, with the clutch, disengaged until the attendant starts the machine by withdrawing the pin and allowing the lever to drop and the pulley to engage the cam.

The operation of themachinei's as follows: The block-holding plates being supplied one with a bored block and the other with a blank, they are seated on the block support,- the bored block beneath the tufter and the blank beneath the borer. The supporting-frame occupies the position shown in Fig. 1, in which position the blocks will occupy the same relative position to the borer and tufter, the two tools being over the, corner of the blocks to begin the first row. The camwheel 32 is in such position that one of. its outermost cam=surfaces engages the pin 44,

while the cam-wheel 33 occupies a position revolved, the driving-pawls and 66 will be vibrated thereby rotating the two camwheels step by step. The cam-wheel 32 permits the weight to pull the block-support to the left as the stepped surfaces successively engage the pin 44, and at each pause of the support the boring and tufting, tools perform their functions, the first boring the hole in the blank block and the second filling the corresponding hole in the bored block. The movement of the blocks thus's'tep by step to the left continues until the innermost surface 47, of the cam moves opposite the pin, the long camsurface er the wheel33 having in the meantime traveled past the pin 53 without moving it. By the time the cam-surface 47 of wheel 32 arrives opposite the pin the inclined surface 52 on Wheel 33 arrives at its pin and, en-

gaging the same, forces the block-support outward a. distance corresponding to the distance between the rowsof holes. The cam-wheel 32 now comes into action again, and as the outwardly-extending cam-surfaces 46 move against the pin 44 the block-support is pushed laterally in the opposite direction to that first traveled and a second row of, holes is bored and tufted. When this row is'finished, a sec-' ond inclined. surface on wheel 33 engages its holes in-the other block filled. Atthis stage ofthe operation the raised cam 93 on-wheel 33 will have made nearly'a' complete rev olution, with the outermost of the stepped surfaces again'st-f'the pin 53. -The raised cam now moves beneath the roller on the operating-lever, and, as heretofore described, the

clutch is disengaged and the machine is stopped, the locking-pin at the same time engaging over the outer end of the lever and holding it out of action. When the blocks have been changed, to begin theo'peration anew the locking-pin .is withdrawn, the clutch thrown into action, and the machine started.

In brush-machines such as illustrated and described in my patent referred to the boring-tool is mounted to reciprocate vertically to bore one hole and retreated for the next operation, and t-hetufting-tool acts in the same'manner and simultaneously with the borer. In adapting the present automatic feed mechanism to machines of this character the size,-'relative arrangement, and form of the operating-cams and other connected parts are such that when the blocks come to a rest after each lateralland longitudinal movement the borer and tufter will descend to perform their respective functions. f

Having thus described my invention, what I claim isv Q I. In a brush-block-feeding mechanism,the I 25 combination with a block-supporting frame movableboth longitudinally and transversely, of meansfor' securing the brushblock thereon, mechanism acting on said frame-in one direction to move it longitudt' nally, and mechanism acting also on said frame in another direction to move it trans- I versely. v

2. In a brush-block-feedin g mechanism,the

combination with a block-supporting frame engaging the block-supporting frame; whereof a rotary cam-wheel having its-edge extend-- ing alternately. inward ,and outward and formed with stepped surfaces comprisingsurfaces 49 and 50, and. intermediate devices acted on by the edge of the cam-wheel and by the frame will be moved alternately back and forth, step by step,'and pausing at each step to permit the tool to act.

4. In a brush-bIook-feeding mechanism ,the

combination with a block support movable transversely and longitudinally, of arot-ary cam, intermediate devices operated thereby for moving the support in one direction, a

second rotary cam, intermediate devices op-.

erated thereby for moving the support in another direction, a' series ofdriving-teeth on said cam-wheels, a rook-shaft and pawls carried by said shaft and engaging the drivingteeth.

. 5. In abrush-blook-feeding mechanism, the combination with the block-supporting frame and mcansfor holding the block thereon,said frame movable on guides, of a rotary camwheel, a pivoted lever 34 engaging the edge of the frame, a link 41 pivoted to the lever and engaged by the cam-wheel, and means acting on the supportto yieldingly'hold the link 41- in engagement with the cam-wheel.

6. In a brush-block-fe'eding mechanisn1,the combination with the fixed frame provided with guides, of the secondary frame comprising a rail 20 movable in said guides and a rail 21 at right angles, and a block-supporting frame formed with guides in which, rail 21 extends; wliereby' the block-supporting frame is movable both laterally and longitudinally of the fixed frame.

7. A brush-block-feeding mechanism comprising a block-support movable longitudinally and transversely, means acting on the support to constantly urge the same longitudinally, means acting on the support to constantly urge the same transversely, and

mechanisms acting on the support to automatically move the same, at intervals in opposition to the constantly acting means.

8. A brush-block-feeding mechanism comprising a block-support movable longitudinally and transversely, a weight acting on the support and urging it in one direction trans versely, a rotary cam-w neel and intermediate devices formed-to control, the movement of I the support under the action of the weight and acting on the support to move the .same longitudinally, and'a cam-wheel and intermediate devices to control ,the movement of vthe support longitudinally under the action of the weight and acting on the support to move it in opposition to the weight.

9. Ina brush-block-feeding mechanism the combination with a fixed guiding-frame, of'a secondary frame sustained therebyand movable longitudinally thereof,-and a block-support sustained by the secondary frame and movable with relation thereto transversely of the fixed frame. y 1 l 10. The combination with a block-support provided with undercut ribsand retaining-.

pins, of a block-holder adapted to be inserted between the ribs and spun: g in place between the pins. I V

11. In a brush-machine thecombination with a driving-shaft a driving-pulley and clutch, of an ope gating-lever and interme-, diate connections, block-feeding mechanism, a rotary cam-wheel controlling the move 199 ment of the same',andadapted toengage the clutch-operatinglever and operate the clutch.

12. In a machinefor boring andtufting brush-blocks, the combination with, a borer and tutter and means for operating the same,

of a work-support movable thereunder lon gitudinally and transversely,- means for holding the brush-blocks on the support respectively beneath the borer. andtufter, means for automatically moving the support transversely to present the brush-blocks at diflfer-' Ice ent predetermined positions beneath theborer and tufter to bore and fill a row of holes, and

means forautomati'cally moving the support longitudinally to effect the' spacing of the rows) In testimony whereof I'hereunto set my hand, this 6th day of June, 1898, in the pres ence of two attesting witnesses. .MCCLINTQOK YOUNG.

' Witnessesz. Y

EDWIN C. MAR ELL, MARSHALL Fon'r.

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