US133827A - Improvement in brush-making machines - Google Patents

Description

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BrushMaking Machins.

No.` 133,827. Patented nemmnsz..

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BRADLEY.. Brush-Making Machines.

No.. 133l Patented De.1o,1a72,

AM. PHOT0LITH06RAFH/c faMx/USBURNEIS PRUCESS/ UNITED STATES PATENT OFFICE.

tDwARD FRANKLIN BRADLEY, OF LONDON, ENGLAND, AssIeNOR To JOsErII sEELDON,`OF NEW HAVEN, CONNECTICUT.

IMPROVEMENT lIN BRUSH-MAKING MACHINES.

Specification forming part of Letters Patent No. 133,827, dated December 1D, 1872.

Be it known that I, EDWARD FRANKLIN.

BRADLEY, formerly of New Haven, in the counf1 ty of New Haven, and State of Connecticut,-

now of London, England, have invented new Improvements in Machinery for Manufacturing Brushes; and I do hereby declare the following, when taken in connect-ion with the accompanying drawing and the letters of reference marked thereon, to be a full, clear, and cxact'description of the same, and which said drawing constitutes part of this specification, andrepresents, in-f Figure 1, a side elevation of part of one -of the aforesaid machines, showing the adaptation of my improved feed mechanism to the same; Fig. 2 is a` front elevation of the parts shown in Fig. 1; Fig. 3`is a longitudinal seetion on line .r w, Fig. l.; Fig. 4 is a vertical longitudinal section on line y y, Fig. 3; Fig. 5

is a vertical longitudinal section on line y y,- Fig, 3, showing the parts in a dierent position; andFigs. 6 to 15 illustrate detached portions of my improved mechanism, and are hereinafter fully described,

Like letters'indicate corresponding parts throughout the drawing.

My said invention relates to y further improvements in the machinery described in the specification of the Letters Patent'No. 85,- 193, granted by the United States to Albert M. White, of Thomsonville, Connecticut, December 22, 1868, as assignor to the American Brush Company. My present invention is designed to provide the means whereby, in making a brush", the bristles or other fibers shall be formed into tufts of uniform size; or, in other words, shall consist of the same or nearly the same number ofbristles or fibers, so that in any one brush or number of brushes. intended to be of the same quality every one of the tufts of fibers' inserted in thek stock shall equally and properly ll the hole formed for its reception, and the entire brush shall be throughout of the samestrength, hardness, or stiness, and the entire surface of the bristles when the brush is finished shall have a compact, regular, and uniform appearance. According to my said invention I provide the machine which inserts the bristles or fibers yinto thc" stock of a brush. with Vnovel feed mechanism, whose construction and arrangementI will now proceed to explain.

I have not thought it necessary to show any of the hitherto-existing parts of the said machine, except a portion of the frame A and those Vparts that are in immediate connecis supported on a bracket, A1, on part of the machine-frame, and extended forward for a convenient distance, as shown. The bristles or bers are laid across the middle` portion of the bed or vtable a, as shown in Fig. .3, be. tween the guides al, which are adjustablelaterally, first, that the space between 'them may be increased or diminished to suit fibers ofA different length and so that the entire body or layer of bers may be more Or less to one side of the center of the table. By this means the thick end of the bristles may be drawn lower in the stock than the other end; consequently, in trimmingthe brush the thin orweak part of the bers projects beyond the other portion, and this part only is cut off in trimming the brush. Below the bed a is a slide, b, which carries on a plate, c, two rows of teeth or pointed pins c1 projecting up through slots a2 in the top of the bed or table. The slide b is com posed of three parts, b1 b2 b3, and, although these parts have a common to-and-fro movement, yet each of them moves to some extent independently of Vthe others, for purposes hereinafter explained. This slide, with its teeth Or pins c1, moves forward the entir'e body or mass of` bristles or fibers gradually and regularly up to the' mechanism which separates them into tufts and delivers them to the inserting devices, and for this purpose the said slide receives a reciprocating or toand-fro motion from a cam,d, through themedium of the lever d1. The said lever has its fulcrum at d2 in an arm or bracket, D, attached to the frame A of the machine, and the lower extremity of the said lever is connected to the rod or iin ger b4 on the part of b2 of the slide b.

In order that the reciprocating motion of the slide b may have the desired effect of carrying the bristles gradually forwa-rd, it is necessary that the pins or teeth c1, after each forward movement of the slide, should be withdrawnv plate c with a vertical piece, c2, which is fittedto slide in the piece b5 projecting down through a slot in the bracket A1 from the part 113 of the slide. On this piece b5 is a spring, D6, which bears against the. bottom ofthe vertical piece' c2 and tends continually to hold the plate c up against the action of the cam c3. This, through -the medium ofthe rod c4 and rockingarm c5,

which bears on a projection on the plate c at c6, depresses the said plate just before each backward movement of the slide b. The teeth or pins c1 are thereby withdrawn from the bristles, and as the return movement of the slide b takes place the points of the pins c1 are below the bristles, and therefore leave them where they were last carried forward. The part b3 of the slide is pressed forward by the spring which bears against the bent arm la7. This arm is connected to andA moves with the linger of the part b2 of the slide. By this means I obtain the greatest pressure of the said spring at the required moment. If desired, I may have a stationary arm instead ofthe arm bl, but the spring would not, in that case, act so advantageously. In the backward movement of the slide the cam acts on the part b2 through the finger. The part b2, after acertain interval of lost motion, hereafter explained, strikes the shoulder b9 of the part b1, and the parts b1 and b2, then moving together, after another interval strike the shoulder b1 of the part b3, and move it back against the resistance of the spring. In the center of the plate c is a sliding bar, di, which is fitted and guided within the said plate. lThis bar moves to and fro with the slide b, and up and down with the plate c, but it has an independent endwise motion in the slide. The said sliding bar carries a single tooth, dtat its inner end, which projects up through a slot, ditti, in the center ofthe table. The bristles, as they are fed forward by the teeth c1, accumula-te in a compact mass at the inner end of the table a, andat this point they are compressed between the lastmentioned tooth and an angle-piece, e, the two together, by their peculiar formation and operation, forming a box or receptacle, which opens to admit the bristles brought to it by the pins c1 and d1 of the feed-motion, and closes to compress the bristles into a compact mass containing about enough bristles to make two or two and a half tufts. This mass of bristles,

when compressed in the box, lies under a verticallymoving divider, which descends and separates from it at every stroke a regular' and uniform quantity ofV bristles. This separated or divided portion of the bristles, which is to form the tuft,is then held between the divider f and the angle-piece e while the return movement of the feeding-slides takes place, during which time the bristles outside 'the divider, being released from the pressure of the pins, become temporarily less dense or compact. The said divider is composed of three'pointed fingers or prongs, f1 f2, Fig. 8, which, when the divider enters the mass of bers, lie close together, as shown in Figs. 6,'7, and 9, and

form one point that is forced into the compact mass of bristles at the part which is to form the center of the tuft. When this part has thus entered the mass the two outside ngers ff2 are caused to move outward through the bristles, and thereby divide them from end to end, the divided or separated portion to form the tuft being inclosed between the divider and the angle-piece, as above described.

The said angle-piece forms the back and top of the compressing-box', and when the divider f is down the bristles are inclosed and tightly held on all sides between the said divider which forms the front of the box, the an gle-piece which forms the back and top, and the Atable which forms the bottom of the box. To allow the divider to descend when the box is thus closed the top of the angle-piece e is formed of two sliding pieces, el, Fig. 1li, between which is a space or aperture, c2, for the divider f to enter. These pieces el are inclined or beveled on the inner side c3, and, when the outer prongs f2 of ythe divider move outward, by acting on the sli'ding piece el they force 'back the said pieces and pass in front of them, the said pieces being then again pushed out over the bristles by a spring, c4.

f" These fingers are operated by the following devices: A2 is a plate attached to the front of the machine. In this is fitted thecompound slide g, Figs. 6, 7, 8, and 9, consisting of the parts g1 g2. The part g1 carries an arm, g3, which has a roller on a stud, g4, and thereby receives motion from the cam lz.. The point f1 is also fixed to this part g1. In this part are the inclined slots g5. The part g2 has a horizontal groove, g, in which4 the' stocks of the points f2 slide in and out. These stocks are provided with pins gl, which pass through the slots g5. lVhen the slide is forced down by the cam the two parts g1 g2 are caused by the spring` g8 to move together till the pins come in contact with the llange A3 at the bottom of the plate A2. This ange prevents the fur ther downward motion of the part g2 while the part g1 continues its descent, and by the action of the inclined slots upon the -pins (17 causes the pointsf2 of the divider to open or diverge from the position shown in Figs. 6 and 7 to that of Figs. 8 and 9. The parts jl diverge till they reach the end of the flange A, when they pass down outside the same, where they remain till .the divider rises again. The

central sliding' bar d, which carries the 'com-A pressing finger or pin dfi, is forced forward `by a separate spring, 2, which also bears upon and sharesthe motion of the bent arm b".

The rods 3 4,' around which these springs are and delivered in the same dense'or compact condition to the inserting' devices. For this purpose I employ the carrying-ngers i j, which are clearly shown in Figs. 4, 5, 12, and 12', and which operate in the following inanner: The said fingers grasp the ends of the tuft or brush of bristles or fibers held in the box, and at the same instant, or immediately after the anglepiece e is raised by the cam h', with which it is connected by the rod or bar e4. The fingers are then moved forward, carrying the tuft under the inserting-fingers B, as shown in Fig. 4.. As these ngers are attached to the slide Z1 it is obvious that the toand-fro motion corresponds with that of the said slide. It is necessary that these fingers should open and close, so that they may receive thetuftand grasp it tightly between them, and for this purpose they are attached tothe differents parts b1 and b2 of the said slide, as hereinbefore described. The parti is attached to the part b2. As the slide b is moved backward after' delivering a'tuft to the inserting-lingers, thepart t of the fingers, be-

ing connected tothe part b2 of the slide which rst receives motion from the cam, is drawn away from the part j till the part b2 of the slide strikes the shoulder on the part b1. The two parts z' and j then move backward together, the point of remaining up, as in Fig. 4, till the beveled end il of the arm i2, which is pivoted to the slide at i3, comes Vin contact with the inclined arm` le, which is pivoted at k1 to the bedl of the feed mechanism. 'This incline throws upv the Asai'd beveled end of the finger-arm, and consequently deprcsses the Y point i, which at this moment passes under the tuft held in the box. The said end then drops down over the rear shoulder k2 of the arm k, -which is beveled so that it will rise and allow the end'i2 to pass under as the slide and fingers again move forward. By this means the points t' are raised into the position -shown in Fig. 4., Vholding the tuft between them and the part j. The anglepiece e of the box is provided with a liningpiece, e5, which lis -to take off the pressure of the spring l from the pins c1, when the latter are being withdrawn from the bristles. Without this rack, or some equivalent device, the said pins, wh en their points were bearin g only against the bottom layers of bristles, would advance a little and throw the bristles out of their proper positions; but with this contrivancethe point of the tooth m enters the teeth of the rack, and holds the slide so that the pins are kept from advancing while they arebeing withdrawn'. Another rack, n, on the sliding plate di, in combination with a tooth on the bed of the feed mechanism, has the same effectwith regard to the central pin or tooth di. The bars o rest on the bristles or other fibers, as shown in Fig. 4, during the action of the feed mechanism, and they are raised by turning them up on the point o1, as shown in Fig. 5, to allow the bristles to be placed on the bed. The part o2 to which these bars are jointed is screwed to the bracket or frame, and its edge o3, against which the divider slides, serves to' prevent the displacement of any bristles at this point as the divider rises.

What I claim, and desire to secure by Letters Patent, is

1. The feeding device, consisting of the teeth c1 projecting above the table a, and having an upward and advancing and downward and retreating movement, substantially as set forth.

2. .The adjustable piece e5 in the receptacle described, arranged to govern the quantity of bristles for each tuft, in the manner speci` tied.

3. Ihe combination of the slide I and plate e, provided with teeth extending up through the bed, and having an up-and-down move ment to enter and leave the mass-of bristles, combined with a reciprocating movement to carry the bristles forward to the separating mechanism, substantially as described.

4. The tooth dfi, having a reciprocating movement, combined with `the angle-piece e, l

together forming a receptacle for the bristles delivered thereto by the feeding device.

5. In combination with the subject-matter of the first clauseof claim, I claim the tooth dft, having a reciprocating movement, and com bined with the an gle-piece e, together forming a receptacle for the bristles delivered thereto by the feeding device.

6. In the box or receptacle to receive the bristles formed by the anglepiece e and the tooth 11H, I claim the arrangement of the said tooth dit* upon a reciprocating slide, substan tially as described.

7. The racks ln, in combination with the vertical piece c2, and tooth m, and sliding plate d* bearing the central tooth difi, all arranged and operating substantially as specied.

8. In combination with a feeding device, substantially such as described, I claim the holdingbars Ao, as and for the purpose specified.

9. The combination of the point f1 and points ffg, arranged upon the same slide and operating simultaneously tol be forced down into the mass of bristles, aud then the points f2 j"2 to separate, substantially as specified.

10. In combination with the subject-matter 11. The arm 7c jointed t0 the feed-bed, and arranged in the manner described so as to depress the points of delivering-ngers at the backward motion of Athe same, substantially 'of the ninth clause of claim, I claim the fin.' as set forth.

gers t' and j, constructed and operating, sub- EDWARD FRANKLIN RADLKY. stantially as described, to take the separated Witnesses:

WM. RoBT. LAKE, E. C. JACKSON.

tuft and transfer it to the inserting device 01 fingers B.

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