US1125187A - Brush-machine. - Google Patents

Description

II. M. SCHWARTZ.

BRUSH MACHINE. I

APPLICATION FILED JAN. 9, 1912.

Patented Jan. 1,9', 1915.

H. M. SCHWARTZ.

BRUSH MACHINE.

APPLICATION FILED JAN. 9. 1912.

Y1,125,1870- Patented Jan.19,1915.

9 SHEETS-SHEET; 2.

H. M. SCHWARTZ.

BRUSH MACHINE.

APPLICATION FILED JAN.9. 1912.

Patented Jan. 19, 1915..

9 SHEETS-SHEET 3.

H. M. SCHWARTZ.

9 SHEETS-SHEET 4.

v Hanf/0f:-

H. M. SCHWARTZ.

BRUSH MACHINE.

APPLIOATION FILED JAN. 9, 1912.

Patented 1311.111915.

9 SHEETS-SHEET 5.

@abb Wow 'f diffe/Heya H. M. SCHWARTZ.

BRUSH MACHINE.

APPLICATION FILED JAN. 9, 1912.

Patented Jan. 19, 1915.

9 SHEETS-SHEET 6.

H. M. SCHWARTZ.

BRUSH MACHINE.

APPLICATION l-"ILBD JAN. 9, 1912.

Patented Jan. 19, 1915.

9 SHEETS-SHEET 7.

H. M. SCHWARTZ. BRUSH MACHINE.

APPLIOATION FILED JAN. 9, 1912.

Patented 1111.19, 1915.

- I l 674/" l @www ' H. M. SCHWARTZ.

BRUSH MACHINE.

APPLICATION FILED JAN. 9, 1912.

Paten-ted Jan. 19, 1915.

9 SHEETS-SHEET 9.

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HERMAN M. SCHVARTZ, OF NORTiI-IAMPTON, MASSACHUSETTS, ASSIGNOB. '10 FANNE B. LOOK, GF NORTHAMPTGN, MASSACHUSETTS, GEORGE H. BURR, OF NEW YORK, N. Y., AND ELDON MACLEOI), OF WESTWOOD, E/IASSACHUSETTS, TRUSTEES.

Baugh-MACHINE.

ineens?.

Specication of Letters Patent.

Application filed January 9, 1912. lSerial No.` 670,177.

T 0 all 107.10m t may concern.'

Be it known that l, HERMAN M. SCHWARTZ, citizen of the United States, residing at Northampton, county ofHampton, State of Massachusetts, have invented a certain new and useful improvement in Brush-Machines, of which the following is a specification, reference being had therein to the accompanyingA drawings.

My present invention relates to automatic machines for drilling holes in brush backs and setting therein tufts or knots of bristles which areheld in place by pieces of metal known as staples or anchors.

.The machine belongs to the general type of machines known as Gane machines, but the machine embodying my present linvention also includes mechanism for automatically positioning the brush backs during the operation of drilling'and plugging and for presenting to the drill and plugger new been completed.

brushv backs when the previous ones have The machine embodying my presentinventon is wholly automatic, it, only being necessary for the operator to keep the bristle reservoir filled with bristles, the machine supplied with flat wire from which the staples are cut, and to replacethe completed brush by an vundrilled blank. Heretofore so far as is known to me, machines of this charl acter have been constructed to produce only brushes having an even number of parallel rows of bristles as for instance a four-row brush.

The machine embodyingmy present invention is especially constructed for use in the manufacture of brushes having an un-y even number of rows, saidy rows not being parallel to each other.

The machine shown gin the accompanying drawing is intended for use in the manufacture of a three-row brush. the rows of which converge toward the end or tip of the brush. As will be explained later, the complete cycleA ofy operations of this particular two three-row brushes of thel kind descri machine includes the drilling 'and tufting f n;

the parts coming back to their original or starting position after the completion of the.

second brush. It will\of course be understood that -the drilling of one blank and tufting of another is proceeding simultaneously.

The machine naturallv divides itself into two halves, one of which contains the drill, staple formingyand feeding mechanism, the bristle reservoir, knot selecting mechanism, andthe plugger together with the operating parts therefor. This half of the machine is conveniently known as the body of the machine. It isalso referred to herein as 'the front half since this is the part nearest the operator. The back half of, the machine is known as the head and is. devoted exclusively to the blank positioning mechanism by means of which the blanks are presented to the drill and plugger in proper positions and at the proper time.

While l have usually'referred to the piece of metal with which the .tuft is fastened into the brush back as a staple, l wish to be understood as including by this term any metallic member for securing a single tuft of bristles whether or not of the solid construction known as an anchon' I have also referred to the piece of boneor celluloid which is drilled andcilled with bristles to form the brush, as the brush blank, yalthough it is often 'referred to in practice as the handle.

The general mode of operation of the machine may for convenience of understanding the following description of the machine be outlined as follows: The knot picker selects a knot ofbristles of the right size from the bristle reservoir and conveys it to the chan- Vtact with the brush blank, when the pusher advances further and sets the knot of bristles. Simultaneously with this the drill is caused to advance and drill a hole in a brush back which is also held in the carrier. The drill and plugger then retreat, and during this` movement the carrier which is stationary so far as movement toward or away from the body of the machine is concerned, is then moved horizontally and vertically to bring the brush blanks in position to have for presenting the brush backs to the drill and pluggen, and since said mechanism is capable of independent use,l ll have not claimed it specifically in this application, but have done so in the divisional application tiled Nov. l, 1912, Serial No. 729,303.

' The invention will be fully understood from the following description taken in connectionwith the accompanying drawings, and the novelfeatures will be pointed out and clearly defined in theclaims at the close of the specification.

I of the staple pusher.

ln the drawings, Figure 1 is a. side elevation of a machine embodying my invention,

the front of the machine being at the right.

of this view. Fig. 2 is an elevation of the front half ofthe machine looking toward the right in Fig. 1.` lln this view the pivots of the cam levers have been shown in sec'- tion to assist in tracing the movement.

Fig. 3 is an elevation of the back half of the'A machine looking toward the left in Fig. 1. Fig. 4 is a Fig. 5 is a top plan view of the portion of the machine shown in Fig. 2. Fig. 6 is a side elevation of the brush holder and related mechanism on ay somewhat enlarged scale. Fig. 7 `is a front Lelevation 'of the parts shown in Fig.A 6 and on the same scale. Fig. S is a detail of the bristle picker arm. Fig. 9 is a detail of the upper end of the slide operating arm 1,06 and connected parts. Fig. 10 is a ldetail of the cushion pins for the plugger slide. Fig. 11 is a view in perspective of the parts which actuate the feed wheel. Fig. 12 is a section on line 12-12 Fig. 5. Fig. 13 is a vertical section of the die and punch, and related parts. Fgitl is a -view in perspective of the partsshown in Fig. 13. Fig. 15 is Fig. 16 is a section of the staple pusher on line16-16 on Fig. "15.

Fig. 17 is a section on line 17-17Fig- 6, showing the parts locked. Fig. 18 is/,a diagrammatic view illustrating the path of movement of the drill and tufter relatively to the'brush blanks, and corresponding with one cycle of movement of the machine.' Fig 19 is a diagram of the horizontal and vertical cams. i

Referring to the drawings, the drill 69 (see Figs. :1. 2 and 5) is held in` a chuck 7 0 onthedrill spindle 71.v :Said drill spinel this specifcarear 'elevation of the machine.

a side view of the end L subject place by disturbance of the arrangement agresser /dle 71 is slidable longitudinally'in suitable bearings in the frame vof the machine and is caused tol rotate by a belt (notshown') on a pulley 72. The rear end of the drill spindle 71 is providedV with a collar 73 against whichv rests a spiral spring 74C. which tends to hold the drill spindle 71 away from the brush blank. rlllhe drill spindle 71 is pushed forward compressing the spring 7-1 and coming into/ contact with the brush blank to drill the hole by means of an adjustable stud 125 on an arm 7 5 secured to a'rock-shaft 76 carried in the bearing 7 8. 'llhe other end of the rock-shaft 76 is provided with an arm 79 secured thereto by a set screw 8G. rlhis arm 7 9 has on its lower end a cam roll 81 which contacts with a cam 82 on the main shaft 35. IThe ladjustable stud 125 on the arm furnishes means for varying the depth of the hole drilled in the brush back and to adjust the drill.

Referring more particularly to Figs. 2 5 there is shown at 11 the bristle reservoir or hopper in which the bristles are placed vertical position, and are crowded forward by a `follower 12 operated by chains 13 passing over pulleys 14. The chains 13 are kept taut' by weights not shown.. The forward end of the bristle `reservoir is formed by 'two inclined planes 15 and 16. rll`he bottom 560 of the bristle reservoir 'is 'adjustable vertically by means of an adjusting screw 501 working in a lug 502 on the frame of the machine.,

The tuft lforming mechanism consists of a single member called the knot picker des ignated 18 in the drawings. 'llhis member is seen more clearly in Fig. 8. llt consists of a thin needle-like piecel of metal having a sharp point.'y

on one side and inclined on the other side rFhe knotpicker is straightv as shown at 19', in Fig. 8i llmmediately behind the inclined portion 19 is loca/'ted notch 20 within which the bristles are received. The knot picker 18 is forced into one side of the bristle reservoir 11 and the bristles lill the notch 20, after which it is withdrawn taking the bristles in the notch with it. As the knot picker does not go into the middle goes in only on one side, it does not disturb the arrangement of the bristles in the resern voir as much, thereby avoiding many of the troubles to which machines of this type are and which are caused in the rst of the bristles in the reservoir. L The size of the notch in the'knot picker determines the size of the knot. lf it is' desired to change the size ofthe knot a different knot picker having a 'notch of the desired size/is substituted'. f

of the bristle reservoir, but L.

The knot picker 18l reciprocates in two opl l posite registering grooves 550 and 551 (see 12) the former of which is-f oimed in maaier thev side of the member 503, which is adjustable by means of the screw 504, while the other groove 551 is formed in the adjacent side of a member 552 secured to the frame of the machine. The member 552 is fixed and the member 503 is movable forward for the purpose of adjusting the width of the bristle channel which is left between these two members. This bristle channel 41 is of a width about equal to the depth of thenotoh in the knot picker so that all the bristles in the notch 20 are retained in the notch from the time the picker leaves theV about its middle by an adjustable link. This adjustable link is made in two parts 25 and 26, the part 25 being connected with the picker arm 21 by the pivot 27 while the part 26 is connected to the cam follower arm 23 by the pivot 28 shown in dotted lines in Fig. 2. The parts 25 and 26 are secured together by a screw 29 in a slot 30 in the part 25 and the adjustment is conveniently made by means of a thumb screw 31 revolving in the lug 32 on the part 26 and in the lug 33 on the part 25, the hole in the latter lug being screw-threaded. From the foregoing, it will be plain that by turning the thumb screw 31 the position which the notch4 20 in the knot picker occupies at'the left hand end of its stroke (as seen in Fig.L 2) may be adjusted, the`purpose of this adjustment being to make sure that the bristlevpicker will v always stop at the right, time with its knot of bristles opposite the canal in which the staple pusher moves,f so that the entiretuft of bristles will be certain to be carried forward down the canal by thestaple pusher. The knot picker is operated by'a cam 34 on the main shaft 35, said cam driving a ca1n follower 36 on the lower end of the cam follower arm 23. This cam is a double or cylindrical cam to give the driven part a positive motion'in both directions.

the bristle picker 18 which is'away from the reservoir is secured to a cross-head -37 by tion is such that the upper end of the picker arm 21 is free to rise and fall :as .the Crosshead 37fis-carried forward.V i

' The' ystafplesbylineans nf winchv tufts The end of i of bristles are secured in the holes inthe brush blank consist of small pieces of metal of any well known shape cut from a wire or tape of metal., This wire is shown at 42, and is supported upon a reel (not shown) or in some other suitable manner. The wire is fed forward the proper distance and then remains stationary while the staple is being cut.

The feeding mechanism consists of two jaws 43 and-44. The upper jaw 43 is carried on the end of the jaw arm 45, pivoted at 46 to the frame of the machine, and this jaw arm is caused to swing about the pivot 46 a suilicient anrunt to' advance the wire the required distance. The movement of the jaw arm is produced by a cam 47 acting through the follower arm 48, pivoted at 49 to the frame of the machine, and the link 50 pivoted at 51 to the jaw arm 45. The

upper end of the follower arm 48 isslotted as shown at 52 and the position vertically of the left hand end of the link 50 in the lsaid slot 52 is adjustable by means of the nut 53- so that the amount which the wire 42 is fed forward at eachvswing of the jaws 43 and 44 may be varied.

As the cam 47 is conveniently a plate-cam capable of moving the parts in one direc-l tion only, there is provided a spring secured at 61 to the frame 4of the machine, and at 62 to the jaw arm 45. This spring serves to retract the parts after each advance movement of the wire. The lower jaw 44 is guided in a bent portion 58 of the jaw arm 45 and is held in; place in the jaw arm by means of the leaf spring 59. The.

in a. corresponding spherical cavity 64 in a.

bell crank lever 65 which is pivoted at 66 to the frame of the machine. The ball and socket joint 63 permits the lower j aw44 to swing with the jaw arm 45, and at the same time to Abe given a slight vertical movement by the bell crank 65 to seize or release the tape. The ,bell crank is provided at the lower end with a cam follower 67 which is in contact with a cam 68 located on the main shaft 35. The parts are so timed that jufst before the cam 47 begins to advance the jaws 44 and 43 to feed the wire, the cam 68 will move the lower jaw 44/upward to pinch .the wire and said camA 68 will hold the lower jaw 44 in this position during the advance movement of the wire. The wire is released 4by the jaws at the end of the adl place :the Sjtanle'i- S 1,30

construction the staple is deposited in the staple pusher channel by the punch itself so this consists of a stationary die 83, (seeparticularly Figs. 13' and 14), of any suitable 'construction but preferably made in two parts, and the punch 84 which is movable vertically. rllhe punch 84 is carried on the top of a punch-slide 85 guided by slots 86.

r1`he punch-slide 85 is slotted vertically as.

shown at 88 in Fig. 1, to extend around the stationary die 83, and the Atop ofthe slot is closed by a cross-member 89 which is essentially a part of the punch-slide 85. To this cross-member 89, the punch 84 is adjustablyisecured by means of a screw studI 90 and lock nut 91. By means of this stud 90, the punch 84 may be raised or lowered verticallyy with reference to the punch slide l85.

'llhe punch slide 85 is given its reciprocating vertical movement by acam 92 connected to the punch slide by a rock-shaft one arm of which carries the cam roll while another arm 505 is connected with the punch slide. n

rlhe cam 92 is on the main shaft 85, and as it is a rim cam, a spring 506 is employed to hold the roll against the cam and to lift up the punch slide after each stroke. rl`his spring 506 is secured to a third arm 507 von the rock shaft. f

After the knot picker is moved back out of the bristle reservoir to the position shown in Fig. 5, the punch 84 having punched out a staple, the'staple is pushed down into a channel 96, see Figs. 1, 13 and 14, in which the pusher 97 slides, and the die holds the staple against the bottom of the pusher slide way until the pusher pushes it out from under the punch. rThe punch 84 is located in front of the bristle channel 41, so `that when the pusher 97 advances it pushes the staple forward in the channel 96 until the staple contacts with the front side ofthev knot of bristles which are held by the notch 20 inthe knot picker 18. A further. advance of the pusher 97 doubles thebristles and then carries them forward intoxthe brush blankv through the nose 98 of the plugger. rllhe junction of the bristle channel 41 and I the slideway through the nose of the plugger is curved as will be plainly seen in Fig. 1 at 100 to facilitate doubling theknot of bristies, andthe passage into the nose of the plugger is widened out in the vertical plane as seen at' 99. -By thiis constructing this part of the machine the speed of the machine is increased, as` the tuft of bristles 1s .doubled with great rapidity. The vpusher f 97 is shaped in cross section like an inverted T as yseen in Fig. 16

i andthe two projections 601 and 602 fit into grooves in'the' walls of the plugger. rllhe portion 603I ofthe pusher stiidens it so that y the brush maaier Y it will not bend in inserting the staple in hard material. rll`he end of the'pusher is cut away as seen at 604, Fig. 15 sothat the pusher' may not collide with the punch in case the upward movement of the punch vdoes not begin quite soon enough.

lin my 'up to the brush blank and then stand still while the pusher 97 advances still further and inserts theknot of bristles and sets the staple. 'llhese relative movements ofthe plugger and pusher are accomplished in the following manner. ll`he plugger nose 98 is in two piecesl formed integral with the top and bottom plates 101 and 102 whichvtogether form the plugger slide. Registering grooves in the adjacent faces of the two plates 101 and 102 together form'the chan- `nel 96 in which the pusher slides, and the two plates 101 and 102 are secured together by the cap'108 on'the nose lof the piugger and a thumb screw 104, seen in F ig. 5. Both the slide and pusher 97 are moved by thek cain'105 (see Fig. 2) through the arm 106 pivoted at its lower end to the base of the machine and carrying a cam roll 107. This arm 106 is cored out, as seen in Figs. 1 and 2 to. clear the drill spindle 71, and at its upper end is forked in two planes, so that four prongs 108 are formed. 'llhese prongs 108 embrace a spool 109 (see also Fig. 9) to which is secured by a pin 110 a rod 111 on the frontend of which is carried the pusher 97. 'llhe ends of the spool 109 are slotted to slide on ways 112 fastened by screws 113 to the frame ofthe machine. By this arrangement off the parts, the pusher is accurately guided. The pusher being positively connected vwith the arm 106 is moved constantly. 'llhe plugger'slide is also caused to move by the'l arm 106'the prongs 108 of which contact with a series of cushion pins on the slide, but this movement occurs only at the end of each stroke. The cushion pins are indicated at 114 and 115 in Fig. 5. Une of these pins is shown in Fig.'10. lllt is surrounded by a spring 116 and the pin 114 is slidable in the hole but is prevented from coming out by the thimble 117 whichois screwed into the hole in the plugger slide. A collar 118 on the inner end of the pin contacts with the thimble 117 and prevents the pin' being pulled out by the spring 116. When the arm v106 has advanced until 1t contacts with the pins 114, it picks up the plugger slide and moves it forward until a cross-arm 120 fastened to the rear end of the lower member 102 contacts with two adjustable stops 121 secured to the table A of the machine. ,Said adjustable stops '121 are made in the form of bolts passing through I lugs 122 and secured 'in place by set nuts 123.

On the reverse movement of the arm 106 the plugger slide moves back coincidently with the pusher until the cross-.arm 120 attached to the plugger slide strikes a stop 126 contained in a lug 127 on the frame of themachine, being moved by the two springs 508 one end of each of which is secured to a post 509 on the frame of the machine. At this point the plugger slide stops and the pusherv continues its movement until the prongs 108 contact with the back pair of cushion pins, these being numbered 115. The plugger slide which is composed of the top and bottom plates 101 and 102 has near its forward end a hole 128 in which is located the die S3 and punch 84e, which are with the knot of bristles which havel previously been brought from the bristle reservoir by the knot picker. The plugger continues to advance and doubles the knot of bristles carrying it forward to a point near the orifice of the plugger nose. About this time the prongs 108 contact with the cushion pins 114 and the entire slide and plugger are carried forward until the plugger nose is about in contactfvviththe face of the brush blank at which time its forward movement is checked by the stops'121. pusher advances still a little further and pushes the knot of bristles andthe staple into the hole in the brush block and setsI the staple, this further forwardmovcment of 'the pusher being permitted by the cushion pins'114. Therev'erse movement is as previously described. y 4

The head or back half of the machine will i now be described. As previously stated, in

the machine embodying my .present invention the face of the brush blanks to be drilled and tufted. remains in the same vertical plane throughout the operation, -in other words, the plugger and drill advance to meet the brush blank and the brush blankis stationary instead of the brush blank advancing to a stationary drill and pluggen rl`he arrangement has the great advantage that the .carrier for the brush backs may be made much more rigid and consequently the work performed by the machine is more accurate thanl is possible -where the carrier has a forward and backmade in 'the form. of an. endless chain I Thereafter the the drilling of one brush blank is taking place, the lplugger is setting the knotsin another brush blank. After each hole has been drilled, the brush blank is moved sidewise and raised or lowered so that it is in position for the next hole to be drilled. At the same time corresponding holes in the other blanks are being tufted. After all of the holes in the brush blank have been drilled or tufted, the carrier which has previously been locked in place, is unlocked and is revolved a suflicient distance to bring the next brush blank into position after which it is again locked in place. brush blank which is being tufted is separated from the holder containing the brush rlhe holder in which is located the` blank which is being drilledby another holder." As will be later explained the cams of the positioning mechanism complete two blanks for each revolution of the cams. By arranging the holders on the carrier as described, the same portion of the cam is positioning the carrier during the tufting which positioned the carrier when this brush blank was drilled. 1n this way, any deviation between the two parts of the cams causes no wrong positioning of the' brush blank when it is being tufted.

The -positioning mechanism is composed of three groups of elements, one of which moves the carrier horizontally, anotherof which moves the carrier vertically, and the third of which unlocks the carrier and revolves it after a brush blank has been drilled and a corresponding blank has been tufted. Although the cycle of rotation of the machine covers the making of two three-row brushes,`the carrier is unlocked and moved after each brush is completed, that is twice for each cycle of the machine. rThe carrier and positioning mechanism therefor are supported rigidly upon a frame Bmade upA of convenient pieces suitably secured tsgether. 'll his frame is preferably heavy and strong to insure rigidity of the carrier. The carrier is constructed, in the form of an endless chain consisting' of fifteen brush lblank holders 130 secured together by links 131 pivoted to lugs 132 on the back of the blank holders 'llhe endless chain formed by the blank holders 130 and links 131 revolves upon two sprocket wheels 133 andA 134 carried on axles 135 and 136.

The brush blanks C' and E are held in place in the holders 1301i between a fixed abutment 139 anda movablev abutment 140 which is yieldingly pressed against the *side of the brush blank bythe springs 141. The movable abutment 140 is provided with a shoulder 142 adapted to. engage the side of the neck. of the brush. blank, as is plainly iso seen in lig. 7o The tip end of the bmsh blank contacts With a Wall 143. 'll`he brush blank is insertedv in the holder by being .pushed in from the left hand side, as `seen in Fig. 7 9 until the tip of the brush blank contacts with the Wall 1&3, 'llhe cavity in which the brush blank is received is slightly narrower at the front than at the rear, z', e. the Walls are under out, although the brush blank is not oil this shape so thatthere is a tendency tor the brush blank to be crowded back against the rear-Wall or the cavity and the brush blank is always accurately positioned the blank holder and held there rigidly.,

`flvvo brackets'137 and 138 support the carrier. The iront portion or thea-lower bracket 137 is-orrned into a grooved guide or shoe 611 upon which the holders are `guided when. the carrier is shifted. The guide 611 also 'torrns the support tor the holders durin` the drilling and turting, and

' the carrier locked to it during all this time The holders 130 have projections 612 on their edge which slide in grooves in the said guide 611. The tvvo brackets 137 138 which support "lie carrier are mounted upon slide l which is known as the vertical slide9 which is rnovable .in 151 These Ways are 'themselves secured to horizontal slide 152? which .is carried in Ways in rai'ne or 'the machine.

The two slides 15@ and 152 are -inovel by earns and 15e` which are resp ctively ulie vertical and horizontal i earns,F

o? located-on a cani sha 156 raoun ae the nia nvided tion is imparted to connecting rod by the earn.` Tae connecting rod is guided ina bearing 163 therarne or the machine and is forked rear end 'for connection by means of a pin 1611 to a sliding block 165 which is guided in a slot 166 in a rocking lever 1679 which is pivoted at 16%. The upper end of therocking lever 167'is also slotted as shown at 169 to receive the goin 170 which is held in tvvo lugs 171l `(one only being visible in Fig. 1) on the bottoni of a slide 172 which is knovvnias the bunter slide The bunter slide is suitably guided in the ranre'l of the 'machine of the machine and iscaused to re-V idealer ciprocate toward and away from theV body by the parts just described. A bunter 173 is secured to the top of the bunter slide and its forward end is in line with one arm of a bell crank 174 (seelig. 11) pivotedat 175, to the frame l The other end or the bell crank 171 projects into aslot 176 in the feed dog 177 (see alsoig., 3).. The rear end or' tail of the feed dogl 177 is forked. to receivea stud 178 on an upwardly projecting edge of the trarne l The other end ot the feed dog is Jformed into a point 180 for engagement with the teetl or the leed vvheel 157, and also has a Ward projection 181 :tor a purpose which will be later described. A spring 182 secured to a post 183 on the rail oi" feed dog 177 draws back the reedy dog toward lett as seen in Fig. 3 alter each reciprocan or the leed dog. @ne revolution or' the main @or each hole drilled an shaft 35 occurs l each knot oi' bristles set, and therefore, z bunter slide which is operatediroin this c shaft is caused to strikeA the tail oin the 174 move the 'leed dogg)1 177 f engagement the leed Wheel 157 for each revolution ot main shalt 'eed Wheel is moved one notch l hole drilledjancl tutt set, Backvvarcn l tion o he cani shaft 156 on which the T/vlieel ..57 is located is preventedv by ot a lockingavlieel 158 and locking,l n 1811 mounted on a secured to a ldon a li le slide 187 which can be l' e ci, p 'the niacin;

t at ri gli-t v 1V i) l* on toward 'face 195 cn 'l correspon gly inclinel :tace 188 the'locking pavvl 1811? il in e point of the locking paw gement with the locking Wheel the cara shalt 156 is lree to nieve instant the bunter 173 contacts wi bell crank 1711 to move the -leed dog turn the feed Wheel 157 @n rnovernent o'l3 'the bunten the other surface 196 on the dog1 190 contacts with other inclined surface 189 on the tail of locking'paxvl and the dog` 190 rides over, the tail or the locking pavvl .lifting the Weight 19.@jand then drops down into its normaloositioni. This backward movement is simply for the purpose of getting the parts into normal -position again. A spring 615 under the front end of the locking pawl throws its end up into engagement with the locking wheel as soon as the wheel has been moved.

The foregoing description explains the manner in which the cam shaft 156 upon which is located the vertical cam 155 and the horizontal cam 154 are given their step-bystep rotation in proper time with the movements of the drill and tufter. The horizontal slide 152 ismoved in one direction by the horizontal cam 154 by means ofa cam roll 200 (see Fig. 3) which is secured to the back side of th horizontal slide 152 and the said slide 152 is moved in the other direction by the spring 201.

rlhe vertical cam 155 gives to the vertical slide 150l its vertical movement through a cam roll 202 secured to a fork 203 (see Fig. 1) which is itself pivoted near the middle of a lever 204. The rear end of the lever 204 is held by means of r`a vertically adjustable post `2057 -itself secured to a bracket 206 on the frame of the machine. The adjustment of the post 205 is made by means of an adjusting screw 616 and a set screw 207. The front end of the lever/204 is provided with a hardened roller 208 which forms the point of engagement with the upper end of the slide 150; As the vertical cam 155 revolves, it raises or lowers the lever 204 and thus moves the vertical slide and attachedparts in the vertical plane'for a predetermined amount. l

As previously stated, after the completion 'of the work of drilling and tufting each brush, it is-necessary to unlock the carrier and shift it a sufiicient distance so that the next brush blanks will be in proper position to be tufted and drilled, respectively. Each blank holder 130 has drilled in its back side two tapered holes 144, in which lare received tapered locking pins 145 which lock rigidly the blank holder and carrier to the guide 611 and hold it so during the drilling and tufting. These pins 145 are 'secured to a plate 21.0, which for conven-l ience is called `the locking pinplate. This plate is guided upon two bolts 211 which are secured in the rear face ofthe guide 611 upon which the carrier is supported. Nuts 212 are placed upon the ends of these bolts and a spring 213 is interposed between the nut 212 and the locking pin plate 210. These springs push the locking pin plate 210 and the locking pins 145 forward into the tapered holes in the'backs of the blank holders 130. The locking pin plate 210 is slotted as shown at 214, Figs. 7 and 17, and a hook 215 is attached to the locking plate by means of a pin 216. The lower surface of the hook 215 is notched, as shown at 217 Aand a'small roller 218 is secured to the hookbyv'a stud 219.' Under the vhook 215,is 1ocross-head is pi'votally secured one end of a link 223, the other end of which is secured to a lever 224. The lower end of this lever is pivoted at 225 to the bracket 137. The upper end of the lever 224 is attached to mechanism which causes it to be swung about the pivot 225 whenever it is necessary to unlock the blank holders. The small roller 218 on the point of the hook 215 is located so that it will contact with a cam 226 when the locking pin plate has been moved out toa certain point, and as the cam"V roll 218 rides up on the camI` 226 it finally lifts up the hook 215 until the hook'is disengaged -from the end of the pin 220 on the end of which is formed the quarter segment previously referred to. As soon as theqhook is disengaged from the said pin, the springs 213 force the locking. pinplate and locking pins back against the back sides of the' blank holders, andas soon as the holes 144 in the blank holders come opposite the locking pins 145, the pins snap-into the holes and lock the blank holders in place. This mechanism is such that the locking pins are drawnV completely outof their holesr a suiiciently long time before the hook 215 is disengaged from the pin 220 to permit Ithe n blank holders to bev movedl far enough" so that when the locking pins snap back they cannot engage the holes from whichV they have been withdrawn, but rwill engage the next holes when the carrier is moveda suiiicient distance. f

The shifting of the 'carrier 'is produced by an arm 230 provided ywith a pawl 231. held inA engagement -by Ia spring 233 with a ratchet .wheel 234 fast to theupper sprocket wheel 134. lWhen the arm 230 is moved to the left, as shown at Fig. 6, thev ratchetl wheel234, the sprocket wheel 134, and the carrierfwill be moved with it a distance depending upon the distance which the arm 230 is moved. A slotted link 235 is conn ected at one end to the arm 230 and at the other end engages a pin 236 on theupper end of the locking pin lever 224. .The

slot 237 in the link 235 is so proportioned `that the locking pinv lever 224 is moved a Sufficient distance to unlock the blank holders before the pin`236 comes to the end of theslot 237. In Fig. 6 the parts areshown l in the position they occupy after the parts have been unlocked and before-the shifting ofthe carrier has begun. further movement begins the shifting -of the blank holders and finally' disengages the locking pin hook 215 to permit the locking ,pins t0 Snapiback and engage the holes in Thereafter the l the blank holders vvlien the blank holders have been moved into place. i

The locking pin lever 22a is inoved by. a connecting rod 249 provided with vtvvo ,end nieinbers 238 and 239 and aj turn buckle 2&1

for adjusting its length. The end'niember v239 is pivotally secured to a fork 5l@ on the upper end of a lever 24:2 pivoted at 243 to a lu 244 on the trame B of the machine. The fork 510 is arranged to swing a little on a stud 5ll so that/the parts will not bind as the carrier is moved sidevvise by they horizontal cam.; rllie lever, 242, is itsell nioved by a hook '246 secured to the lever 242 by ya pin 247 sliding in a slot 248 in the lever 242. rlhe hook 2&6 is yguided in suitable Ways in a .portion v250 of the traine B of the machine. 'lhe cani shaft 156 on which the horizontal and vertical canas are vlocated extends rearwardly through the ina" chine and has secured to its rear end a block "25L @n this block 25l are` two levers 252 and 253, pivoted at 25d and 255 respectively. These levers rotate with the caniV shall' l5@ and alter every l@ degrees ol rotation the end ol one ol the levers 252 and 253 cornes nnder the liook 246, as seen in llig. l,x lotli. ot these levers'252 and 253 are out avvayas shown at a b, to permit this arin of the lever to rotate Without striking the proieet ing end et the lioolr 246, the long 'et the levers 252,` 253 are 'lorined dat spaces c e suitable 'for engagement with tlie corre` spending flat space on the deg 255., is pivoted at 257 to the rear end oi the biintersli le 172, 'which reciprocates time hole is drilled and ol brisles This pavvl 25'? is bold up into the position shown n by nieans or a :d

"3f-1 spring 258 llhen one oie the levers a' 253 has revolved to sncli'a position th t it is in the natli otlie doe` 255, tbeV next ard rdovenient ol l' e bunter slide 172 eares tlie dog 256 nn or lever-"2520er as the l"case inay be, the dog 256 bere ele "oressed against tbe action `the 258. the end ein' "Hic-iy strolre el the bnn erslide the dog 256 snaps np and o n the 'lor-- Ward inovernent of tbe 'bunter slide engages the dat surlace c ,and svvings the lever about its pivot 25e or4 255, At this time the upper end of the lever is in engagement vvif the Q 1.' hook 246, the 'forward movement oi the bunter slide carries the lovver end of the lever 252 or 253 toward the right and pulls the locking pin lever 22d and the carrier nioving arm 230 over to the left to iinloclr the blank holders and rotateI the carrier. lltthe end or" the orvvard movementol the bunter slide at which tiine ,shalt are (rotated'one notch, the lever 252 or 253 as the case-maybe, being rotated by the cani shaft is disengaged roin the dog 256, While the bunter slide is still in its forward position, As soon as the lever 252,

' of each cycle of arm oi" this bell cranlr 272 engages the fleed Wheel and earn` maaier or 253, is released, the spring 512 restores the parts to normal position wlicli is that shown in Fig. l. The levers 252 or 253 are restored to the position shown in' l4`igxl by springs 618 and 619, one end ot which is fastened to a stud G2G on the cam shalto The lever then rests against a pin @2l so that it is ready to' be engnged on the nef-rt rotation ol the cam shaft.,

ller a reason later to be explained, it is necessary to turn the cam shaft 156 one extra notcli of the leed wheel 157 at the end movement ot the inacliinerz This is accomplished by rneans of a tail v piece 2G() secured at therear end of the cani shalt l56. @nce in each revolution piece 260 'Svay' cornes to a position in the an inclined surface 26l on the rear end or the bunter slide 172, lllien the bunter sl'de cornes back at the end ot the stroke, cani surface 262i strilres the tail piece pushes it to one side to the position shown in Fig. il, causing the cani shaft l5@ to rotate a `distance 'i d oi one notch oi tlie Wheel. To permit this rotation tlielocir -Wheel l58 has one tooth removed as seen 51H3, in llig., ll, so that at this time tlie i pavvl 'lll does not liinterfere vvit" rnoveinent oil tlie :lf-eed vvlieel' and co n The "machine is controlled by tbe oper by neans of a pedal 2?@ see Fig, 2 conn ed to a lever 2ll Wbich is itself' connec one arin the bell cranlr 2?2, ll

l m secured tlie upper end aoclnteli 2W.- 'vliicln opeates the clutch 27 operator presses dovvn the tref f f' y l,wheel 276- and necessary to i not c c i o 5l; as i i 5l8"vvliicli engages "feed Wheel prevents its aclrvvard been c7 the 'feed c Tllie proiectio` lie -feed dog i tends iinder tlie lioolr Oatvl which forms part'o'l the lever when the lever lillis lifted np hanf 'feed dog. l??? and tlie pavvl 5lS lov engaged Atrein 'leed Wheel and Wheel is then 'lree to vbe moved by Vllie staring 5l@ lreeps tlie lioolr e normally engagement vvitli :E vvlaeel. .k

The o'oeration oil Kthe machine is in era-l as tollovvs: Yl"lie operator inserts an drilledbriisli blank C in tbe proner bla holder 130 and a drilled blanlr D blank holder next but one above.

ln tice, and alter tliev inacliine liasbeen maaier "bores a hole, theknot picker selects a knot of bristles, the die cuts a staple and the( plugger sets the knot of bristles in the hole by means of .the pusher. After the drill has been drawn out of the drilled hole, the feed wheel 157 is moved one notch by means of the bunter and intermediate parts. The movement of the feed wheel moves the carrier to the 'left (see Fig. 3)' the distance of one notch and the vertical cani lowers the carrier a slight amount because as will be y seen from F ig. 18 the rows of bristles in the finished brush ar'e not parallel but converge. toward the tip of the brush. This general movement of the parts 4.continues until the end of the first row of brush No. 1 is reached. After the last hole of this row has been-drilled, the neXtmovement of thefeed wheel lowersthe carrier to position the brush blank to begin the second row of holes. As the second row' of holes is horizontal, that is follows the median line of the brush, the brush is not moved vertically whilev the second row is being drilled and tufted. At the end of the second row the dog 256 on the rear end of the bunter slide which resultsin unlocking the carrier and shifting it to bring the-next pair of blanks in position to be operated upon. rlhe saine forward movement of the bunter slide which unlocks the carrier and shifts it, moves the feed wheel lone notch and the correspendingy movement of the vertical cam raises the brush blank so that it is in position to have ,the hole z in brush blank No. 2 'drilled and the corresponding hole inthe brush blank which is vbefore the plugger tufted. The

drilling and tufting of this pair of brush blanks is the same as that vpreviously described, except that the path followed by the drill and plugger lis dierent from that followedl by the .drill and tuft'e'r 'during the drilling and lling of the lirst pair of brush blanks. rIlle paths of Vmovement of the two brush blanks will readily be seen from an `examination. of Fig-18. The starting point for the rst` and second brushes being 'in- .dicated respectively at f and h and the finishing point being indicated by g and c respectively. .It will be seen that the next lpoint after the hole marked, it in lFig. 18 4will bethe hole f which is the starting point of the'irst brush and that' there is av considerable vertical i distance between these two holes. The carrier 'is lifter through this Ivertical distance'by means of the vertical cam but asithis Adistance is vso large that it would make the' cam too steep if the movement were made during a single notch of the feed wheel, an additional notch is provided in the'feed wheel, as has been previously described.` rlhe feed wheel therefore has eighty-one notches, forty for the forty f tufts of-bristles in the firstbrush, forty for.

the second brush and one additional hole at l A the end of each cycle of revolution to assist point. rlhe feed wheel is moved this additional notch` by thetail piece 260, as previously described. The machine is then ready to begin a 'second lcycle of movements. i ln Fig. 19 there isfshown a diagram of `in setting the-machine back to its starting j the vertical and horizontal cams and there has been indicated on the cams the various points of the cams which are in contact with the cam roll at the time when the holes at the beginning and end of each brush are.

being drilled. F or convenience the same reference characters have been applied to this ligure as are applied to F ig. 18 to indicate Vcorresponding positions on the cam. llt will be noticed that the starting points on 4the two cams are at a distance of about ninety degrees from each other .owing to the fact'that the cam roll for the vertical cam is above the cam while the cam roll for the horizontal cam is at the left hand side of the cani.

l/Vhat il claim is 1. rlhe improved machine for drilling an filling a .brush having an odd number of rows which comprises a drill and tufter, and a carrier holding a plurality of brush blanks, positioning mechanism for said carrier making a complete cycle of movement during the completion of the work .upon two brush blanks, and shifting mechanism shifting the carrier twice for each cycle of movement of the positioning mechanism.

2. 1n a machine of the character described, the combinationv of a tool to operate upon a brush blank, a carrier holding a plurality of brush blanks, a shaft, two cams thereon moving the carrier in two directions in a plane at 4right angles to the tool., said cams ict by a single rotation of the cam shaft controlling thepositioning movements of the carrier'during the operation on two successive blanks,.and shifting mechanism shifting the carrier to present the next blank to the tool, said shifting mechanism acting twice during each revolution of the cam shaft.

' the operation on two successivev pairs of brushes during one revolution of the cam shaft, and yshifting mechanism shifting the carrier to present a new pair of brushes to the drill and plugger respectively, said shifting mechanism acting twice during each revolution of the cam shaft.

l. ln a brush making machine, the combination of a drill and plu'gger, a carrier composed of a series of work holders., automatic positioning mechanism therefor moving the said carrier in two directions in av plane at right angles to the said drill and plugger. a cam shaft, cams thereon acting on the said carrier to position the samel in said plane, a feed wheel on thesaid cam shaft, a reciprocating member moving the said wheel step by step, a lever on the cam shaft and in the path of the said reciprocating member once for each revolution ofthe cam shaft, shifting means to move the holders comprising the carrier bodily and connections from the said lever to the said shifting means so that the said reciprocating member will actuate thesaid lever to shift the carrier once for each revolution of the cam shaft.

5. ln a brush making machine, the combination of a drill and plugger, a carrier composed of a series of work holders., automatic positioning mechanism therefor mov ing the said carrier in 'two directions in a plane at right angles to the said drill and plugger, a cam shaft, cams thereon acting on the said carrier to position the same in said plane, a feed wheel on the said cam shaft, a reciprocating member. moving the said feed wheel step by step, two levers pivoted on the cam shaft at substantially 180 degrees from each other, each lever coming into the path of said reciprocating member once for each` revolution of the cam shaft, shifting means l to move the holders comprising the carrier bodily, and connections from the said levers to the said 'shifting means so that the said reciprocating member will actuate the said levers to shift the carrier twice for each revolution of the cam shaft.

6. ln a machine of the character described,

the combination with a plugger having a ,channel therein and a plugger tongue working in the said channel of a bristle reserroir,

maaier a knot picker consisting of a reciprocating member having a notch in one side thereof, said knot picker entering the reservoir, parallel and adjacent to aI wall thereof,y a grooved guide for said knot picker substantially at right angles to the bristle channel in the said plugger, a cam to actuate said knot picker, said cam having a rest therein so that said knot picker will stand still for a portion of its stroke with the said notch therein at the junction of the picker plugger channels.

7. ln a machine of the character described, a plugger slide therefor movable in ways toward and away from the work, a pusher sliding in a channel Ain the said plugger, a reciprocating member actuating the said pusher, cushion pins on the said plugger slide in the path of the said moving member whereby the plugger slide stands still during the first part of the movement of the pusher is then moved forward when the moving member contacts with the said spring pins and then stands still during the further advance of the plugger.

8. ln a machine of the character described, the combination with a plugger slide having a slot therein, a pusher movable relatively to the plugger slide in the same direction, an actuating member moving the pusher, said member projecting into the slot in the said plugger slide so that the plugger slide is moved by the said member` in unison with the pusher for a portion of the stroke near the ends thereof. 1 9. ln a machine of the character described, a' plugger slide therefor movable in ways v toward and away from the work, a stop arm on'the said plugger slide, a stop on a lined lpart of the machine contacting with` the said stop arm, a pusher sliding/in a channel in he said plug'ger, a reciprocating member actuating the said pusher, cushion pins on the said plugger slide inthe path of the said moving member wherebythe plugger slide stands still during the nrst part of the movement of the pusher isthen moved forward l

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