US1001550A

US1001550A - Brush-machine.

Info

Publication number: US1001550A
Application number: US59658410A
Authority: US
Inventors: Gilford S Murdock
Original assignee: Individual
Current assignee: Individual
Priority date: 1910-12-10
Filing date: 1910-12-10
Publication date: 1911-08-22
Anticipated expiration: 1928-08-22

Description

G. S. MURDOCK.

BRUSH MACHINE.

APPLICATION TILED DEO. 10I 1910. 1,001,550. Patented Aug. 22, 1911.

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IU'Il I' E. f' M, A i kfouncgb G. S. MURDOGK.

BRUSH MACHINE.

PPM-01111011 111.1111 11110.10, 1910.

1,001,550. Patented Aug. 22, 1911.

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BRUSH MACHINE.

APPLICATION FILED Dnc. 1o, 1910.

1,001,550. Patented Aug. 22, 1911.

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G. S. MURDOGK.

BRUSH MACHINE.

APPLICATION TILED 13110.10, 1910.

Patented Aug. 22, 1911.

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GILFORD S. MURDOCK, OF DETROIT, MICHIGAN.

BRUSH-MACHINE.

To all whom it may concern:

Be it known that I, Ginroan S. Munnocit, a citizen ot the United States of Anlerica, residing at Detroit, in the county ot' lVayne and State oit ltllichigan, have invented certain new and usel'ul Improvements in Brush-lvlachines, of which the :following is a spccilieatien, reference being had therein to the accompanying drawings.

This invention relates to a brush making machine especially adapted for making wire brushes and its object is to provide a 1nachine arranged to automatically itorm wire tufts or bunches 'from continuous wires,

. ferm staples, and lsecure the bunches within holes in a brush bleek or back by means oit the staples.

To this end the invention consists in the matters hereinafter set :t'orth and more particularly pointed out in the claims reference being had to the accompanying drawings, in which- Figure 1 is a side elevation o'l a machine embodying the invention; F ig. 2, a plan view thereoit; Fig. 3, a Atrent elevation; llig. t is an enlarged detail o't the wire :Feeding and cutting-otlI mechanism, showing parts in horizontal section; Fig. 5 is a section on the .line 5-5 of Fig. it; Fig. is an cnlarged sectional detail of the staple lorming mechanism and adjacent parts; Fig. 7 is a perspective detail ot the wire Yfeeding slide; Fig. S is an enlarged sectitmal detail ol" the bunch controlling guide; Fig. 9 is a pei spective view et the saine with parts detached; and Fig. 10 is a sectional view o'l" the wire guide.

The staple forming and driving mechanism shown in the drawings is sultstantialtrr the same as the mechanism for the same purpose shown in my Letters Patent No. 934,560 dated September 21, 1909 and No. 914,142 dated December 21, 1909, and terms no part et this invention which relates more particularly to the bunch forming and feeding mechanism, the particular construction, arrangement and combination ot' parts and to certain other new and usetul 'features oil? the machine.

A bed or table 1 is mounted upon a suitable supporting traine and provided at its rear edge with suitable bearings t'or a drive shaft 9.. lmosely mounted upon one end et the drive shaft is a driving pulley 3 and a clutch 1t is provided to secure the pulley to the Shatt. i bracket 5 is secured to the ta Specification of Letters Patent.

Application filed December 10, 1910.

Serial No. 596,584.

ble 1 near its forward end and is provided with vertical guidenvays tor a reciprocable slide or head 0 which is actuated bv a rocl ing lever T pivoted internlediate its ends with its ilorward end connected to the head 0 by a link S and engaged at its rear end with a cam wheel 9 secured upon the shaft 2 lor actuating the lever in both directions.

A vertically movable die block 10 travels in guides A11 secured to the table directly below the slide (S and a lever 'l2 engages said block at its 'tei-ward end to operate the same, said lever being pivoted intermediate its ends and engaged at its rear end b v a grooved cani '13 on the shatt 2 tor operating the lever in timed relation to the movement ot the slide 6. 'orking vertically through the die block in a suitable guide opening or passage provided there'lor, is a needle 'lL-l; ser cured at its upper end to the slide (5. This needle is iormed with guide ribs 15 and suitable guide grooves are 'torn'led in the block to receive the ribs. The lower end ol said grooved passage in the block 'forms al die to receive a wire which, upon the dmvnward movenumt ol the block, is formed into a staple over the end ot a finger bar 10. This linger bar is projected into the path of the die and retracted therefrom in timed` relation to the nu'wement et the other parts b v being pivotallv attached at its rear end to one end et a lever 17 which is pivoted upon the table 1 intermediate its ends and is piv- -.tall v connected at its opposite end to a` bar 1S reeiproeable in a suitable guide on the table. This bar '1S is provided with a roll at its rear end to engage a cam groove in a cam wheel 19 setau'ed upon the sha'lt 2. The wire 20, shown in Fig. 0 trom which the staples are formed, is ted into the 'path ot the die bleek through a hole in a suitable guide bar 21, by means ol a suitable gripper 2Q mounted upon the 'forward end ot' a lever Q3 which is pivoted to the table 1 intermediate its ends and pivotally attached at its rear end to the itorward end oit a second lever 2l, which is also pi voted intermediate its ends to the table and is provided at its rear end with a roll engaging a cam groove in a cam on the shalt 2. The gripper 22 is arranged to grip the wire and 'tced the saine 'foiwv'artl a certain distance when the lever Q?) is m'oved in one direction and release the wire and slide backward upon the same when the lever is moved in lthe opposite direction, a second gripper 2G being provided upon the table to engage and hold the wire against retrograde movement while the other gripper is sliding backward. The wire 20 is thus fed beneath. the vertically reciprocable die block in timed relation to the movement of the other parts and when the die is moved downward the wire is severed by means of a cutter 27 carried by the block and the ends of the severed portion are formed downward over the bar 16 into a staple which staple when so formed, lies within the lower end of the grooves 2S in the die block. The. formed staple thus lies directly in the path of the needle 14 so that it will be driven downward by the descending needle, the finger bar 16 being retracted to permit thc staple to be driven downward.

rlfhe bunches which form the tufts of the brush may be made up of any desired number of small wires and these wires are cut to the desired length from continuous wires led into the machine in any suitable manner from reels or coils, not shown, in the drawings, placed at the rear of .the machine, and the several wires are carried forward into the rear end of the machine over the table 1 and over a slide 29 reciprocable in a suitable guide-way 30 formed in the table 1 and held in place therein by guide strips 31 engaging the upper edges of the slide. Carried by said slide is a grooved roll 32 over which the several wires are passed, and pivotally attached near its upper end to a supporting standard 33 on the slide, is a gripper arm 34 arranged to swing with its lower end adjacent to the roll 32 and grip the wires between, said arm being arranged to swing away from the roll and release the wires, upon the rearward movement of the slide. A. coiled spring 35 is attached to the arm 34 to normally hold said arm turned toward the roll. The gripper arm 34 is provided with a detachable plate 36 engaging a groove in the lower end of the arm which plate is adjustably secured in place by means of a clamping plate 37 secured by screws passing through the upper end of the plate and engaging screw-threaded openings in the arm. The lower edge of the plate is suitably shaped to engage the wires within the groove of the roll and may be quickly and easily adjusted to give the arm the proper gripping effect and may be detached and its edge ground should it become grooved by use and thus fail to properly grip and hold the wires.

r1`he slide 29 is reciprocated the proper distance to feed the desired lengths of wires into the machine, by means of an actuating lever 38 provided with a slot 39 in one end to engage a roll 40 pivotally supported upon a stud 41 on the slide. At its opposite end this lever is pivotally secured to the table 1 by a pivot pin 42 and an arm 43 is also secured to the pin to turn with the lever 38.

This arm 43 extends substantially at right angles to the lever 38 and mounted upon it to slide longitudinally thereon is a block 44 provided with a set screw 45 for holding the block in any position to which it may be adjusted upon the arm. A link 46 which is made adjustable as to length by means of a bolt 47 passing through a slot in one part of the link into engagement with the other part, is pivotally attached at one end to t-he block and at its opposite end to the forward end of a lever 43 which is pivotally supported intermediate its ends upon the table 1 and at its rear end is provided with a roll to engage a cam groove in a cam 49 secured on the drive shaft 2. By adjusting the length of the link 46 and by moving the block 44 along the arm 43 the throw of the lever 38 is accurately adjusted to feed the desired lengths of wire into the machine.

The several wires are led forward from the slide 29 through a telescopic guide 50 formed of telescoping tube sections, the section of smallest diameter being adjacent to the slide and provided with laterally extending arms 51 by means of which the guide is attached to the slide to be extended upon the rearward movement of the slide. Coiled springs 52 are attached at one end to the slide and at their opposite ends to the arms 51 to connect the guide to the slide and afford a yielding connection to prevent breakage of the parts. The forward end of the telescopic guide is secured within a fixed guide block 53 which is bored out from its rear end inward to receive t-he guide which slides therein and the forward end of its bore is tapered to a small opening 54 to bring the wires close together and direct them forwardly through the adjustable guide block 55, the forward end of which lies close to the path of the needle 14 in its downward movement.

A bearing block 7 5 is adjustably secured to the table 1 at one side of the guide block 53 and is provided with suitable set screws 56 to engage said guide block and securely hold the same in any position to which it may be adjusted. A knife 57 carried by a reciprocable bar 53 movable in a suitable guide-way on the block 75, lies in engagement with the end of the guide block 53 to be projected across the opening 54 in the end of the block and sever the wires.

Projecting forwardly from the front edge of the table 1 is a chute 59, the inner end of which lies close to the forward side of the path of the needle 14 and is covered or provided with an inclined top 60. When the several wires are projected forwardly through the guide 55 by the forward movement of the slide 29, the forward ends of the wires are projected outwardly into the chute 59 into engagement with a stop bar 61 in the chute which is adjustably secured in place by means oil a clamp G2. The ends of the wires forming the bunch are thus evenedup by coming in contact with the stop and are inclosed within the covered end ot the chute and the guide block 35 so that they are held straight and even and lie across the path olf the descending needle and staple which is formed over the end ot the linger bar 16 directly above. To prevent the wires from escaping laterally between the forward end ot' the guide 55 and the rear end ot.' the chute 59, and to also :term a guide for the descending needle and staple, two bars (33 and (Sli are adjustably secured in suitable guides with the' adjacent ends spaced apart'. and formed with guide grooves ttor the ribs 15 on the needle and :tor the staple.

rI'he cutter 57 is actuated in timed relation to the movement of the other parts by means ot' a lever (S5 which is pivoted intermediate its ends to the block and engages at its forward end the slidin bar 5S carrying the cutter. The rear end o't the lever 65 is provided with a roll to engage a cani groove in the cam member G6 secured upon the drive shaft 2. This lever is made in two parts adjustably connected by means oit bolts (S7 passing through slots in one part into engagement with the other part.

lVhen it is desired to change the length ot the wires forming the bunches, the stop (3l is adjusted within the chute 59, and the guide block 53 is correspiinidingly adjusted, the distance between the forward end ot said block and the rear end et the stop, determining the length of the wires. The bearing block 75 is then adjusted to bring the cutter 5r into engagement with the or ward end of the fixed guide block 5?, the adjustment in the lever (35 permitting such adjusti'nent ot the bearing block. The throw ot the lever 38 is then changed b y adjusting the link l-t and block #tt to change the throw oit the slide Qt) to correspond with lthe lengths of wire to be eut ott'.

Detachably secured within an opening at the forward edge of the table 1, is a guide block GS shown in detail in Figs. 8 and tl,

which extends downward from the table` and is provided with a central axial opening having side guide grooves lll.) which are arranged in alinement with the grooves in the ends ot' the bars (33 and (Slt and also the grooves 528 in the die block l1. ,V hen the staple is 'forced downwardly by the needle, across the bunch ot wires and on downwardly into the guide (S8, carrying the wires therewith, said staple is accurately held and guided by the grooves in position to be ac curately driven by the needle into a brush block supported upon a, table '70 beneath the lower end or point ot the guide. rlhe 'liorward and rear sides oit the guidenvay through the guide G8 are formed by two hardened and tapered inger pieces 71.

These linger pieces 71 are securely held in place by providing [langes TQ upon their upper ends to engage seats in the guide block and by hardened plates 7?) engaging transverse grooves Til there'lfor in theupper end olf the block, said plates when in place covering the upper ends ol the fingers Tl and locking the same in place. rlhe edges ot the grooves Til; are slightly under-cut and the edges ot the plates 73 arerilu-,lined to engage the umler-cut sides ot the grooves and securely hold the plates in place. 'lhe linger pieces Tl and the transverse plates 73 may both be hardened lo prevent the wires which are bent over the edges ot the plates Til as they are lorced downward into the guide, trom wearing away the angles toi-med by the plates T2-l and also the sides ol' the guide. 'lhese plates and linger pieces may be quickly and easily removed and repaired or new ones inserted in their place, it being Al'ound in practice that when these angles and sides become grooved and worn, the wires are not' accurately bent intermediate their ends when torced downward into the guide by the descending staple and needle but are liable to move longitiu'linally7 and thus when secured in place in the brush block, some ot the wires o'l` each tu'l't will project beyond others and the surlace ol the brush will be uneven.

ly j'n'oviding the. guide blocks 53 and 55, the bars (33 and l-t and the guide chute 5S), the wires Alim-ming the bunch are accurately held straight and even so that they will be evenly'and accurately bent. lter being severed these wires al'e aceuratctv and evenly held between the stop (314 and 'for ward end olf the bar 5? in position beneath the driving` needle so that when engaged and driven downward through the lower guide, they will be lormed into a tutt with their ends even and will be accurately and securely :lastened in the brush block hy the staple.

ln the operation oli the machine the wire Q() from which the staples are :formed is lirst led beneath the die block a proper distance to `lorm a staple. The die block is then moved downward by the lever '12 cut, ting oil'l the wire and Ylorining it over the end ot the linger lll, the stapl, at this time lying within the lower ends ol the grooves QS in the die block. rlhe linger lt is then retracted trom beneath the staple and during the :forming o'l" the staple the several wires lor forming the bunch are t'ed in by the 'forward movement ol the slide Qt). lllhen the wires come in contact with the stop ($1 the cutter 5T is ad vaneed sulliciently by its actuating cam to bring it into contact with the wires and grip the same, securely 4holding them within the hole 5ft in the guide block .i3 so that upon the rearward movement of the slide Qt) which at once takes place, the Wires will be held from being pulled out by said movement of the slide. rEhe needle la is then forced downward by its actuating lever and, upon the slide 29 reaching the rear end of its movement, the cutter 57 is further actuated to sever the Wires, which fall when severed to the bottom of the space in the hollow guide block 55, in position to be spanned by the staple as the needle forces the same doi-vnward. rlhe further movement of the needle doubles the bunch intermediate its ends under the staple and forces it downward through the guide block 68.

What l claim is:

l. ln a brush making machine, the combination With means for placing' and securing bunches of Wires in a brush block, of means for simultaneously feeding a plurality of strands of Wire to the securing means in timed relation to the operation of said means, and acutter for simultaneously severing the strands operating in timed relation to the movement of the securing and feeding means.

ln a brush making machine, the combination with bunch securing mechanism comprising a reciprocable member for placing the bunches in a brush block, of means for simultaneously feeding a plurality of strands into the path of said reciprocable member and a cutter for severing said strands.

3. In a brush making machine, the combination With bunch securing' mechanism comprising a reciprocable member for placing the bunches in a brush block, of feeding mechanism for simultaneously feeding a plurality of Wires across the path of said reciprocable member to form bunches, means for guiding and holding the several Wires in parallelism across the path of said reciprocable member, and a cutter for severing the strands.

t.. ln a brush making machine the combination With bunch securing mechanism comprising` a reciprocable member for placing the bunches in a brush block, of a guide extending transversely of the path of saidn reciprocable member, means for feeding a plurality of strands endvvise into said guide across the path of the reciprocable member, a stop to be engaged by the ends of said strands located at one side of the path of said reciprocable member, and a cutter for severing the strands located at the opposite side of the path of said member.

5. in a brush making machine the combination with bunch securing mechanism comprising a reciprocable member for placing the bunches in a brush block, of a guide extending transversely of the path of said reciprocable member, means reciprocable in alinement ivith said guide longitudinally thereof for engaging a plurality of Wires and feeding the same longitudinally into said guide, a cutter, and means for operating the cutter in timed relation to the reciprocation of the feeding means to simultaneously sever the Wires.

6. In a brush making machine, the combination with bunch securing mechanism comprising a vertically reciprocable member for forcing the bunches into a brush block, of horizontally reciprocable means for feeding a plurality of Wires horizontally across the path of the said member, a cutter for severing the Wires located at one side of the path of said member at a distance therefrom equal to the distance to which the ends of said Wires are projected beyond said path, and means for holding` the severed Wires forming the bunch with their middle portion in the path of said vertically reciprocable member.

7. ln a brush making machine, the combination with bunch securing mechanism comprising a vertically reciprocable member for forcing the bunches into a brush block, of a horizontal guide for holding a bunch With its middle portion in the path of said reciprocable member, means for feeding Wires endwise into one end of said guide to form the bunch, a stop in the opposite end of said guide adjustable toward and from the path of said member, and a cutter reciprocable across the path of the Wires to sever the same, said cutter being adjustable toward and from the path of said reciprocable member.

ln a brush making machine, the combination with bunch securing mechanism comprising a reciprocable bunch feeding member, of a hollow guide block having a contracted opening in one end, a cutter at the end of said block reciprocable across said opening, a guide extending from said end of said block transversely of the path of said reciprocable member, means for feeding a plurality of Wires longitudinally vthrough the block With their ends projected into said guide, and means for operating the feeding means and cutter in timed relation to each other.

9. ln a brush making machine, the combination With bunch securing mechanism comprising a vertically reciprocable member for forcing the bunches into a brush block, of a guide extending transversely of the path of said feeding member and open at one end, a reciprocable slide for feeding a plurality of Wires endwise into said guide, means on the slide for gripping and holding the Wires during the movement of the slide in one direction, a cutter for severing the Wires, and means for moving the cutter into engagement with the Wires in timed relation t0 the reciprocation of the slide to hold said Wires against movement when the slide is moved in the opposite direction.

l0. In a brush making machine, the combination with bunch securing mechanism comprising a vertically reciprocable needle, oit means ttor 't'ceding a plurality ot. wires longitudinally across the path ot' the needle below the same, a cutter :tor severing the wires to torm bunches, a dowmvardly extending guide having a guideway into which l the bunches are adapted to be forced b y the ei'igagement ot' the needle with the bunches intermediate their ends, and detachable fingers forming the sides of the guideway through said guide.

1l. In a brush making machine, the combination with bunch securing mechanism comprising a vertically reciprocable needle, of means for feeding a plurality ot' wires longitudinally across the path ot the needle below the same, a cutter :tor severing the wires to Yform bunches, a downwardly eX tending guide having a guideway into which the bunches are adapted to be -forced by the engagement of the needle with the bunches intermediate their ends, and detachable plates forming angles at the upper end oit the guideway over which angles the bunches are doubled when forced into the guideway.

12. In a brush making machine, the combination with bunch securing mechanism comprising a vertically reciprocable needle, of means for feeding a plurality ot wires longitudinally across the path ot the needle below the same, a cutter tor severing the wires to term bunches, a downwardly extending guide having a guidcway into which the bunches are adapted to be torced by the engagement oi the needle with the bunches iiitern'iediate their ends, lingers engaging seats in the guide and forming the sides ot' the guideway, and transverse plates detachably secured to the upper end of the guide over the upper ends oi said lingers to hold the same in place and form angles at the upper end of the gnideway to engage the bunches.

13. ln a brush making` machine, the combination with bunch securing mechanism comprising a vertically reciprocablc needle, and means for actuating the needle, spaced adjustable members having guide grooves in their adjacent faces tor said needle, a guide way extending horizontally outward from the space between said members, a hollow guide member extending horizontally inward from said space between said members, said hollow guide, said members and said guideway together :forming a guide tor holding bunches, means 'tor il'eeding a plurality o'l wires endwise into said holding G0 guide, and a cutter at the inner end ot said holding guide 'tor severing the wires.

l-t. ln a brush making machine,` the combination with bunch securing mechanism comprising a vertically reeiprocable needle, and means 'lor actuating the needle, oit' a guide extending horizontally across thepath o'lI said needle, a guide `lormed oit telescopic tubular sections at; one end ol. said guide, a reciproeable slide to which one end ot said telescopic guide is connected, means on said slide to grip a plurality o't wires and :leed the same endwise into said guide, and a cutter .lor severing the wires.

15. ln a brush making machine, the co1n- 75 bination with bunch securing mechanism comprising a vertically reciprocable needle, and means tor actuatilig the needle, olli a guide extending transversely o't the path oit the needle, a slide rtaiiprocable toward and lrom one end oit said guide in alinement therewith, means lor reciin 'ocating the slide,

a groovcd roll on the slide, a gripper arm pivoted to swing toward and trom the roll longitudinally oi the slide, and a detachable plate on the lower end oit the arm to engage a plurality of wires in the groove oit the roll and grip the same between the roll and plate within the groove.

lt. Vln a brush making machine, the combination with bunch securing mechanism comprising a vertically rcciprocable needle,

a drive sha'l't, a lever lor actuating the needle and a cam on the shaftt :lor actuating the lever, oitI a bunch guide having a guides way to receive the needle und bunch, a guide extending transversely to the bunch guide at the upper end thereot to hold bunches in the pat-h o'l the needle, a horizontally disposed hollow' block in alinement with said 100 guide, a slide rtaiproeable in alinement with said block, means on said slide to hold a plurality ot wires and :lieed the same through said blocli, a cutter riaciprocable transversely ol the block to sever the wires, a le- 21.05 ver for actuating the cutter, and a cam on said shaitt l'or actuating the said lever.

ln testimony whereof lll atlix my signature in presence ot two witnesses.

(itl LFORT) S. M'Ultl) O C l.

fitnesses l'niwis E. linannnns, O'rro F. Ban'rnnn.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.