US189240A - Improvement in broom-machines - Google Patents

Description

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C. E. LIPE. BROOM-MAHINE. No.18 9,240. Patented Apr1`1s,`1877.

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Enom-MACHINE. No.189,240, Patented Apri-13, 1877.

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BRGOM-MACHINE. No 189,240, Patented AprlS, 1877.

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' Y ATToRNEy Srafrns .erreur @Errea CHARLES E. LlPE, OF ILION, ASSIGNOR OF TWO-THIRDS OF HIS RIGHT TO EDWARD D. BRONSON, OF AMSTERDAM, AND ALPHONSO WALRATH,

OF FOR'I.` PLAIN, NEW YORK.

IMPROVEMENT IN BROONl-MACHINES.

Specification forming part of Letters Patent No. 189,240, dated Api-i125, 1&'77; application h'led March 10, 1877.

To all whom, it may conce-rn:

Be it known that I, OHARLEs E. LIPE, of Ilion, in the county of Herkimer and State of New York, haveinvented a new and valuable lmprovementin Brooln-SewingMaehines; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, and to the letters and gures of reference marked thereon.

Figure 1 ofthe drawings is a representation of a side elevation of my broom-sewing ma'- chine, and Fig. 2 a plan view of the same.

Fig. 3 is a front view thereof. Fig. 4 is aperspeetive detail view. Figs. 5, 6, 7, 8, 9, 10, 1]., 12, and 13 are detail views of my machine. Figs. let and 15 are sectional views of the needle. Figs. 16, 17, and 1S are views of a modification of the needle. Figs. 19, 20, 21, 22, and 23 are also detail views of my broomsewing machine. j

The chief object of this invent-ion is to provide mechanism for sewing brooms by an operation similar to the method of hand-sewing now generally practiced.

. anism for passing through the broom the needle and so'mnch ofthe thread as is needed for the stitch; fourth, certain take-up mechanism for drawing through the broom the surplus thread which is to be used in succeeding stitches; tfth, feeding devices for .giving the proper motions to the broom after each stitch; sixth, mechanism for automatically stopping the ma chine at the completion of the stitching of each band; seventh, mechanism for changing the position of the broom, so as to presentin suecession the several bands to the sewing mechanism.

In the accompanying drawings, A designates the supporting-frame of my machine, and B the bed or table upheld thereby. The front standards-.A A of said frame A are extended obliquely upward and forward, and bearings a a are formed on their upper ends for the shaft O of the take-up mechanism, hereinafter described, which shaft isparallel to the front line of table B. One of said standards is also provided with an additional bearing, a', for one end of driving-shaft D, which is parallel to one end of said bed or table B. and turns in bearings b b, raised above the latter.

rlhe middle part of saidA bed or table Bis recessed from the front inward at B,'tol leave room for moving the broom while the latter is undergoing stitching. On eachA side of the entrance to 'this recess or space Bl a liange, B2, is raised along the front of said bedor table, and back from said dan ges B2, and along the sides of said recess B', extend two guidebloeks, B3, which are formed on the top of said bed or table, and suitably channeled on their inner faces.

1n these guides slides a broom carriage E,

which is adjusted forward and backward by means of a horizontal leve`r,'F, which is pivoted thereto at its'middle, and also pivoted by one end to the end of a horizontal elbow-lever, F1. On the rear part of said sliding broomcarriage are formed two raised blocks, F2, provided withdetachable inner pieces F3, one being shown 1n detail in Fig. 7, which have on their faces concavities fj', that, together, constitute a socket for a ball, G1, formed on a hollow broom-holding spindle, G. Said spindle is provided at its upper end with a broomholding vise, X. The jaws of said vise are of proper form to give the required shape to the broom, and one of them (marked G2) is made in one piece with said spindle, and provided.

with rigid lian ges g g, between which the other jaw, G3, sets when the said vise is closed upon the broom. The lower end of said jaw Gr3 is pivoted between said flanges g g, and the upper part of the said jawG3 is provided withflanges This closing of said vice is effected by two closing-levers, Il H, which arepivoted by their middle parts, so as to work toward and from each other in slots in the bed or table B. The lower ends of said levers are connected by upwardly and .inwardly converging links or toggle-arms h h, the upper ends of which are pivotally attached to an upwardly-extendingv arm of a treadle, H', which is pivoted at its rear to one of the rear standards of supporting-frame A. Springs hl hlconnectthe upper ends ot' said links or toggle-arms 71, h with said closing-levers H H. By depressing the free end of said treadle the curved upper ends of said closing-levers are forced together like a. pair of jaws, closing the vise. When the pressure is removed therefrom, springs h1 11.1 draw the lower ends of said levers together, sprhadingfthe upper ends thereof, so as to leave 'sufficient' room for the said vise to turn therein. j

Instead of the visecl`osin`g mechanism above described, the `tollowilnfg. modification (shown f' in Fig. 22) 'may be employed Vise-closing levers H il are ,extended down below said treadle H', theirlower ends being formed each` into two inclines, h2 and h3, the former being gnlte abrl1 pt,`the`latter much more gradual. lhese lnchnes are inward and downward, and

`those oneach lever correspond to those on theV other. Treadle H1 is provided with rollers h4 h4, which bearagainst the inside of said 1e-` vers. When said rollers press against the up- Der inclines h2 the upper ends of said closing-` `levers are brought quickly toward one another,

into the position where the greatestpressure is required. `The action ot' rollers 11,4 h4 against` the less abrupt inclines hf h3 applies this "pressure gradually but effective] y.

When the broom G4 is held in the vise above described the band or bands are wound about the brush part of it by means of the following de-vlees; ,On the lower end of broomholding spindle G is formed a bevel-pinion, G5, which meshes witha bevel-gear wheel, G6, on a small shaft, G7, journaled inbearings attached to the under side ot' bed or table B.

This small shaft G'I is rotated by means of cordst: fi, which extend, respectively, to treadles l1, pivoted to the rear part of supporting,- trahie A. The arrangement of said parts is suchythat when one of said treadles is depressed the broom is rotated in one di- "rection, when the other treadle is depressed the broom is rotated in the other direction.` `No springs are required, as the de!l pression ot each treadle suffices to raise the other. rlhe thread forming the band is rst passed through the broom, and then wound around 1t by the above-described rotation of ,the latter. `It is then drawn through again and broken. off.

The band being on the broom, it next be-` comes necessary to sew it to its place. To accomplish this it is necessary to withdraw a catch, G8, which holds spindle G in an upright y position, and to turn said spindle forward and downward into a horizontal position, ball G1 and its socket being the pivot. This pivotal point is also the center ofthe circle of lwhich the curved lines of the stitches form a part. rI he jaws G2 G3 are provided on top with oblique lugs g2 g2, which `alternate withopenings or indentations g3 g3, which form passageways for the needle J to penetrate said broom G4. Said needle is double-pointed, being threaded in the center through eye j, and perforated near each end at j' j. rEhe sides of said needle are longitudinally grooved, to let the thread lie along them as said needle is drawn backward and forward through the broom.

The said needle is operated by the following devices: 0n the tops ot' anges B2 are guideways K, in which run needle-carriers L. Each of these needle-carriersconsists, first, of a metal slide, l, onithe inner end of which is a needle-case, 1,pp onyits inner end to receive the needle.alreadydescribed. At the rear ot' this case are raised lugs 1.4, between which a needle-holding bar, L', is pivoted. On the bottom of the front or inner end of said bar L is a stud or tooth, Z3, which is adapted to work down through a perforation, Z4, in needle-case Z4, and through one of the perforationsj in needle J, when the said perforations 14j are made to"register. This occurs whenever the said needle is shifted from one carrier to another, and the correspondence of the said motions iseit'ected, as follows:

A double crank, M, on the main shaft D, already described, operates a bent connect' ing rod or bar, M1, which is pivotally attached at its other end to a large U-shaped yoke, M2, which is guided at the bottomby a guide, m, supported by a frame, A. The upper ends'of said yoke are provided with guide-blocks lm1, which extend over guideways K, and on top of which are small shoulders m2, each end having a guide-block and shoulder. Each of said ends has also a. rearwardly-extending flat-hottomed stud or bar, M3. This stud or bar slides over the top of needle-holding bar L'` The 'latter is supported `at its outer end by a T- shaped casting; M4, which has its long arm rigidly attached to said needle-holding bar and its short arms vertical. Attached to or formed on the lowest part ofsaid casting is a pin or stud, m3, which rides backward and forward upon one ot' the flanges of guideway K. When in this position,` casting M4 and the outer end of bar L are tipped up, so as to force tooth l3 downward y throughone of theperforations j in needle J, and hold it there until said stud or pin m3 slides down into an oblique slot, m4, in the rear ange of guideway K. This slot extends downward and toward the broom G4, and is guarded by a. slotted plate,`M-, which is set into said guideway, and has a hook or stop-piece, m5, that prevents the stud m3 from passing beyond it.

The outer end of needle-holdin g bar L does not extend quite to the vertical part ot' casting M4, so that there is a small space, m6, be#` asma-'1o e tween them. When fiat-bottomed stud or bar M3 begins to moveA forward, it rests in this space m6, and it is pressed againstl the rear end of bar L by the forward movement of yoke M2, so as to move inward with it the entire needle-carrier L; but when stud m3 strikes against the incline of stop-piece m5, and passes down into the slot m4, the said stud passes out ot' said recess upon the falling outer end of bar 4 L', and moves forward over the same independently of said carrier. The falling of said outer end ot' said needle-holding bar L' releases the needle; and said bar is held out of accidental engagement with thelat-ter by the pressure of said stud or bar M4, carried by yoke M2 upon the rear end of said bar. hle so held, the projecting edge ot' said bar rests upon shoulder m2, already described.

As both the needle-carriers and their attachments are constructed correspondingly in every respect, and as the operation of the yoke M2 and its appurtenances is the same upon both, it follows that the reciprocatory motion of said yoke will operate said carriers alternately; and the above-described devices cause the empty carrier to remain open until the needle is presented thereto, while the carrier holding' the needle is not allowed to relinquish the same. All this is effected by positive pressure. The operation is similar to that ot' a pair of hands drawing the double-ended needle to and fro through the broom.

To remove the needle from the machine,

slide the carrier holding it back until the stud m3 is over recess m7 in one of the flanges of guideway K. Then force down said stud into said recess against the resistance of a springpressed rod, m8, which ordinarily iills the same. There will then be no obstacle to the withdrawal of the needle.

On the inner end ot' each guideway K is a bent thread-guide, B3, which has its surfaces rounded, so as not to cut the thread While the latter is being fed to the needle.

In sewing the bands to the broom it is necessary to make the needle pass through the latter alternately on opposite -sides of the band. To accomplish this l give the broom a forward-and-backward reciproeatory motion by means of the following devices: 0n main shalt D is a wheel or disk, N, having lon its rear face a cam-groove, N1, 'which engages with a stud, n, on the upper end of an upright bar, N2, that is pivotedat its lower end to a bracket, a', secured to frame A, and thereby gives inward and outward oscillation to the same. This motion is communicated, by means of a connecting-bar, P, to elbow-lever F1, already1 described. The movement of this elbow-lever rocks the lever F .backward and forward, and thus causes broom-carriage E to similarly reciprocate within its guides. The other end of said lever is provlded with a tooth or catch, f1, which sets into one of a series of notches, fzf", in a block or notch-plate, F4, upon bed or table B. Said tooth or catch f l then constitutes the fulcrum for said lever F. This lever may also be used to adjust said carriage forward or 'backward the' distance betweenthe bands when it is desired-to sew f more than one band upon the broom. In this case the lever F is shifted from one of said notches f1 f2 to one of the others, the end connected with elbow-lever F1 being then the fulcrum end.

To allow the sewing ot' a second band, the detachable jaw ot' the broom-holding vise is provided with a hinged block,'0, to which two curved bars, O1, are pivoted. Said bars are provided on top with indentations 02, to allow the passage of the needle, said indentations being arranged like those on the vise. Said bars may be turned against the sides of the broom, and fastened by a catch or hook, o.

They are then in position for the broom to be sewed. When not needed, they may be'turned backward. Block O is then turned downward, and bars O1 are caught under suitable plates or catches o on the sides of the said broom-holding vise.-y As many of said pairs of bars are employed as the number of bands on the broom in excess of one.

The said broom held in said vise is automatically raised throughl the space between the guideways K K by means of the following devices, in order to enable the needle to sew the broom entirely across from edge to edge. To the upper end of pivoted bar NZ is clamped av small horizontal shank, ql, bearing at its inner end a ball, q, which turns in a socket in a sleeve, Q', rigidly secured on a pitman or operating rod, Q. The other end ot' said pitman Q (shown in detail in Fig. l1) is provided with another ball, q2, which slips into a sleeve or tube, l', formed on a U-shaped broomrocker, It.' Said rocker R receives the broomholding spindle when the latter is turned forward and downward, as shown. Sleeve or tube R is at right angles to pitman Q, and the end of said sleeve is closed by a detachable plug, i'. a side opening, r', allowing the requisite play. Ou the sides of the broomholding vise already described are two racks or series ot' ratchet-teeth, S S1, one on each side. These ratchet-teeth are adapted to engage with curved pawls S2 S4, Figs. 9 and 12, which work through corresponding channels in guide-blocks S3, carried on the front part ol' broom-carriage E. These pawls are pressed into such engagement'by springs S5, one ot' which is shown in Fig. l0. They are also connected, by rods s s, to a yoke, t, which is attached to a treadle, T, pivoted to fran e A. By depressing said treadle said pawls are ldrawn within blocks S3, and the. broom-holding'vise is thus allowed to descend to its. lowest position. pawls to act independently ot each other, as required in the operationl hereinafter described. v

The upper end of each pawl has a horizontal movement, while the lower end thereof has a vertical one. By this method ot' construction they are well adapted to be cou- The said yoke allows the said trollcd by the foot-treadle without the use of intermediate pieces to change the direction of the motion. These pawls perform a double oce, and act alternately. They support the broom as close as possible to the point where the thrust of the needle is received, and, together with the ratchets on the side of the broom-holder, form the vertical feed. The peculiar action of the feed,wherein the weight ofthe broom and broonrholder is taken advantage of, is as follows: It will be observed that the broom is always in a slanting position when the stitch is made, as shown in Fig. 12. Suppose the needle and thread to have passed through the broom in the direction of the arrow, the broom being supported by pawl S2 on one side of said broom. The broom now begins to turn in the opposite direction; but

the opposite pawl and ratchet prevent that side from being depressed, and the weight is transferred to said opposite pawl, S4, which acts as a fulcrum to elevate another ratchet above pawl S2, the broom being virtually revolved about the point of the pawl. The needle will now enter the broom at the same point where it left the latter, but will proceed in an opposite diagonal direction th rough said broom, as shown in Fig. l2, and emerge at a point the length of a stitch from where it entered on that side. `As the broom is again ref versed,pawl S2 again acts as a fulcrnm, the opposite side of said broom is elevated, and the needle proceeds as before.

The shape of rockerR allows the broomholding spindle to move freely upward on its pivot during said feeding operation, without passing beyond reach of said rocker. The broom is always presented to the needle at the same angle, which would not be possible if said rocker interfered with its motion.

On` the side of the broom-holding vise, at

that part thereof which is the top when the` .same is turned-down for sewing, is a lng or projection, T1, which engages with a pivoted ,pawl or arm, T2, on a shiftinglever, U, when said broom has been sewed entirely across. Said lever is pivoted toA one of the` blocks S3, and its lower end engages with a shifting-bar, U1, either. directly or through a slotted attachment, u. 'lhe otherl end of said bar has in it a cam-groove, a', which vibrates transversely a lever, U2, pivoted by the'middle in r)She upper end of said le.

a slot in frame A. ver shifts a clntchfcollar, U3, feathered on driving-shaft D, so as to engage the same with a corresponding toothed clutch formed on the side of loose driving-wheel V whenever lever "2 is thrown forward 5, but when projection T1 forces the upper end of said lever backward, as stated, clutch U3 is thrown out ofengagcment with said driving-wheel, and the latter revolves freely without operating any part of the machine.

Pawl or arm '.[2 will yield when struck by.

the vise, as the latter rocks away from it, so as not to interfere with the motion of said vlse.

To prevent the broom-support R from being strained by the thrust of the needle against the broom, stops Vl Vl are fixed to the inner sides ot' blocks S2 S3. These stops brace the vise against the thrust of the needle from whichever side it comes.

As different vises may be used with this machine, having their passages for the needle arranged at differentintervals, it becomes necessary to vary correspondingly the throw of pitman Q. To accomplish this the pivotbar N2 is slotted vertically near its upper end, so that shank q1 may be slipped `up or down in said slot, and clamped at any point b'y means of nuts and washers, or any suitable means of attachment.

The loose thread carried by the needle is drawn through the broom by means of takeup arms V2 V2, carried by shaft C, which is turned by driving-shaft D, by means of a bevel-gear connection, D. Said arms have hooks c2 at their ends for catching the thread, and they operate alternately through the thread-guides B3 on each side of the broom.

The needle J is providedlwith a spring-ten sion, consisting of a movable block, y, which is pressed by a spring, y1, against the thread as it passes through the eye j. A part of the necdle is recessed to receive the spring and block within it. The construction of said needle is shown in Fig. 14.

A modification of said needle and tension is shown in Figs. 16, 17, and 1S, in which a flat spring, y2, is employed, pressing upon the thread. Fig. 16 shows a further modification, in which the points of the needle are beveled 'more on one side than on the other, the predominant bevel being on opposite sides ofthe respective points.

Various other modifications maybe made of the different parts of my apparatus without departing from the spirit of my invention.

It will be observed that the broom has three distinct motions after leach passage ot' the needle: first, a short longitudinal mo-` tion; second, a rocking motion; third, a vertical motion. These motions are all simultaneous, and are all essential to the proper presentation ofthe broom for the next stitch.

What I claim as new, and desire to secure by Letters Patent, isi l. ln a broom-sewing machine, a rocking broom-holding vise provided with alternating ratchet-teeth on its sides, in combination with vertically and horizontally movable pawls, substantially as and for the purpose set forth.

2. A broom -holding vise, in combination with devices whereby the oscillation ot' said vise causes the same to climb upward step by step, substantially as and for the purpose set forth.

3. In a broom-sewing machine, a moving broom-holding vise, in combination with shifting mechanism, whereby, when the sewing is completed, the driving-wheel is thrown out of gear, substantially as and for the purpose set forth.

4. In a broom-sewing machine, a broomholding vise provided with a `tripping-lug, in combination with a clutch-shifting lever having a pivoted pawl or arm, substantially as and for the purpose set forth.

5. In a broom-sewing machine, a shaft having two rotary take-up arms, that operate alternately on each side of the broom, substantially as and for the purpose set forth.

6. In a broom-sewing machine, thc combination of two needle-carriers with a doublepointed needle, each of said needle-carriers being provided with a tooth that catches into a perforation in said needle, substantially as and for the purpose set forth.

7 The combination, with a guideway having an oblique slot and stop-piece, of a needlecarrier having .a hinged needle-holding bar, and a stud adapted to engage with said stop and slot, substantially as and for the purpose set forth.

8. The combination of a sliding needle-carrier, having a pivoted needle-holding bar and a recess behind the same, with a yoke,.oper ated by the driving-shaft, said yoke having a pressure stud or arm, substantially as and for the purpose set forth.

9. The combination of pawls S2 with a treadle and suitable connections, substantially as and for the purpose set forth.

10. Blocks S3, provided on the inside with studs or blocks, for bracing against the thrust of the needle, in combination with rocker R and broom-holding vise, substantially as and for the purpose set forth.

11. The combination of a camgrooved disk or wheel with a system of levers and a broomcarriage, whereby a rapid intermittent backward and forward motion is given to the broom, substantially as and for the purpose set forth.

12. The combination, with the broom-carriage, of a lever, either end of which may be made the fulcrum at will, substantially as and for the purpose set forth.

with mechanism for rotating the same, sub-v stantially as and for the purpose set forth.

19. A broom vise, in combination with clasps for holding together its two parts or jaws when released from the pressure of the closing-levers, substantially as and for the purpose set forth.

20. In a broom-sewing machine, a broomholding vise, in combination with a carrier, the two being connected by a universal joint, substantially as and for the purpose set forth.

21. In a broom-sewing` machine, a broomholding vise provided. with double-hinged supplemental clamps, substantially as and for the purpose set forth.

22. A double-pointed needle provided with an inserted tension-spring, substantially as and for the purpose set forth.

23. The combination of a driving-shaft with a take-upl shaft at right angles thereto, the two being connected by suitable gearing, substantially as and for the purpose set forth.

24. The combination of a connecting-yoke with two needle-carriers, which are alternately opened and closed thereby, substantially as and for the purpose set forth.

25. The combination of a connecting-yoke with two needle-carriers, which are alternately moved inward and outward thereby, substantially as and for the purpose set forth.

28. In a broom-sewing machine, a rockingbroom-holding vise, in combination with two revolving take-up arms.

In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.

CHARLES E. LIPE.

Witnesses: v

(l. H. MCEWEN, EUGENE W; JoHNsoN.

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