US705062A - Feeding mechanism for shoe-sewing machines. - Google Patents

Description

No. 705,os2. I Patented Jul -22; I902. z. T. FRENCH & w. c. MEYER.

FEEDING MECHANISM FOR SHOE SEWING MACHINES.

(App lication filed Nov. 23, 1599. (No Model.) 2 Sheets-Sheet. I.

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Z. T. FRENCH & W. C. MEYER.

FEEDING MECHANISM FOR SHOE SEWING MACHINES.

(Application filed. Nov. 23, 1899.) (No Model.) 2 Sheets-Sheet 2.

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UNITED STATES ATENT rnicn.

ZAOHARY TAYLOR FRENCH AND WVILLIAM O. MEYER, OF BOSTON, MASSA- OHUSETTS.

FEEDING MECHANISM FOR SHOE-SEWING MACHINES.

SPECIFICATION forming part of Letters Patent N 0. 705,062, dated July 22, 19012. Application filed November 23, 1899. Serial. No. 737,985. (No model.)

To ztZZ whom it may concern: in line with the pull of the needle-thread, Be it known that we, ZAOI-IARY TAYLOR which obviates tilting the work when the nee- FRENCH and WILLIAM C. MEYER, of 443 Al- (lle-thread take-up rises and pulls the needlebany street, Boston, county of Suffolk, and thread taut and draws the work firmly into 5 State of Massachusetts, have invented an Imengagement with the feeding-finger. By utilprovementin FeedingMechanism for Sewingizing the take-up to hold the work pressed Machines, of which the following description, firmly into engagement with the feeding-finin connection with the accompanying drawger while said feeding-finger is being operings, is a specification, like characters on the ated to feed along the work we find that in lo drawings representing like parts. many instances and for some classes of work This invention relates to sewing-machines, a feeding-awl, which is usually employed as a and has for its object to improve and simplify cooperative part of the feeding mechanism, the construction of the feeding mechanism may be omitted. employed for feeding the work along. Figure 1 shows in side elevation asewing- I5 The invention is herein shown as applied machine embodying our present invention. to a welt-sewing machine--such, for instance, Fig. 2 is a plan view of the back gage and means as shown and described in our application for for operating it and the feeding-finger and LettersPatent No. 655,165-yet it may be apmeans for operating it back and forth across plied to other sewing-machines and used adthe path of movement of the needle, which 2o vantageously. latter is represented by dotted lines, the feed- The feeding mechanism consists, essening-finger being shown at the right-hand side tially, of a feeding-finger, which may or may of the needle at the beginning of its lateral or not be adapted to enter the channel of the feeding movement. Fig. 3 is a plan view of solo, and a back gage, which cooperates with the feeding-finger and means for operating it 25 said feeding-finger to hold the work at cerback and forth across the path of movement tain times during the stitching operation, and of the needle, showing the feeding-finger at said feeding-finger is'located on the same side the left-hand side of the needle or at the end of the work as the needle-thread take-up and of its lateral or feeding stroke. is so disposed relatively to said take-up that The sewing-machine which we have herein 8:: 30 as said take-up rises to set the stitch the pull shown for the sake of illustrating this inven upon the needle-thread will be resisted by tion is the welt-sewing machine of our applisaid feeding-finger, which results in holding cation No. 655,165. the Work firmly pressed into engagement with The main frame comprises, essentially, the said feeding-finger during such movement of upright or column A, surmounted by a table 3 5 the take-up, and while the Work is thus held A, having erected thereon several vertical pressed into engagement with the feeding-finuprights A which are constructed and arger by the take-up said feeding=finger is moved ranged to afford bearings for the main shaft tofeedalongthework. The back gageis moved B, which has secured to it the several operl'earward whilethe workis thus held by the acating-cams, and said uprights also afford 9o 40 tion of the take-up and while the Work is being bearings for the rod or bar 0 and for other fed along and is then moved forward into enoperating parts of the machine. gagement with the work at the proper time 4% represents the take-up for the needleto cooperate with the feeding-finger in holdthread 2, it being herein shown as an arm ing the work while the take-up descends. having at its forward. extremity a roll over 45 The feeding-finger is located very close to the which the thread 2 passes, said arm projectpath of movement of the needle-just as close ing from a hub which is mounted on the bar as possibleand it is moved back and forth Cand adapted to oscillate thereon as required, across said path of movement of the needle and an arm m projects rearward from said when feeding the work along, and such loca hub, having at its rear extremityastud, with I00 50 tion of the feeding-finger places the point of or without a roll thereon, which enters a camresistance of the needle-thread substantially groove formed or provided in one side or face of a cam wheel or disk D, which is secured to the main shaft B, said groove being shown in the right-hand side or face of said disk D. The needle-thread 2 passes from the take-up m through the eye of the looper 'n, which is secured to the forward end of a horizontal shaft '11, having its bearings in the framework. The horizontal shaft n extends rearward to the rear side of the machine, and means are provided for oscillating said shaft on its axis and also for moving it back and forth longitudinally, (which is not deemed necessary to herein describe in detail,) whereby the looper n is operated to carry the thread around the needle.

0 represents the thread-finger, which is provided for the purpose of carrying the needlethread rearwardly from the looper n.

19 represents the feeding-finger, which is herein shown as adapted to enter the channel of the sole, and said feeding-finger is secured to an arm 19', which extends upward and is bolted or otherwise secured to a feedslide 0, supported in a guideway 1", formed in the framework, said slide 0 being adapted to move back and forth in the direction of the feed of the work. The feed-slide 1" has a vertical stud 3 projecting from its upper side or face, which enters a slot formed in an arm r pivoted at r to the front side of said guideway or slide-support r, and a stud r projects upward from the rear extremity of said arm 0*, which enters a peripheral groove formed or provided in a cam wheel or disk D which is secured to the main shaft B of the machine. As the arm 0" is swung to and fro on its pivot by said cam-wheel D the feed-slide 0" will he moved back and forth in the guideway 0" provided for it, carrying with it the feedingfinger 19.

The feeding-fingerp is bent or formed to project or extend into proximity to the path of the needle 25 and is designed to be moved back and forth across the path of movement of said needle when operated, as shown in Figs. 2 and 3, wherein it will be seen in Fig. 2 that the point of the feeding-linger is at the right-hand side of the path of movement of the needle i, and in Fig. 5 it is shown at the left-hand side of the path of movement of the needle, these two positions being the two extremities of the feeding stroke of the feedingfinger.

The curved hooked needle 25 is secured to a needle-segment, which is loosely connected by a short link 15 with an arm 6", projecting from a hub mounted on the bar 0, said arm t having a rear extension, which is provided with a stud which enters a cam-groove formed or provided in one side or face of a cam wheel or disk which is secured to the main shaft B.

The back gage a, which may be made as a welt-guide, if desired, is adapted to be moved back and forth or toward and from the work to cooperate with the feeding-fingerp in holding the work, it being designed to engage the work and hold it from retrograde movement when the feeding-fingerp is returning to its normalposition or starting-point after having fed along the work and also to cooperate with the feeding-finger in holding the work in fixed position while the take-up is descending. The back gage u is attached to a longitudinallysliding bar supported by any suitable means provided for the purpose, and means are provided for moving said back gage rearwardly a predetermined distance, which it is not deemed necessary to herein describe in detail, as such mechanism forms no part of our present invention, being shown in our application above referred to and in our application, Serial No. 8,196, filed March 10, 1900.

The shuttle, which may be of any usual or suitable construction, is set concentrically in a shuttle-carrier w.

WVhile the take-up m is rising to set the stitch and is drawing the needle-thread taut, the work is pulled by the needle-thread toward the feeding-finger p, and the operator is thus assisted in holding the work, and during such time the back gage u recedes to disengage the work -for the feeding operation. While the work is thus firmly held pressed against the feeding-finger by the action of the take-up, the feeding-finger is operated to feed along the work. Immediately afterward the back gage u is moved forward into engagement with the work, so as to retard any retrograde movement of the work, and the feeding-finger then moves a short distance in a direction toward the right preparatory to again feeding the work along.

While it is preferable for many reasons to operate the feeding device at the time specified, yet wev do not desire to limit ourselves to thus operating the feeding device, as it may be operated to feed along the work at any time while the work is firmly held pressed into engagement with it by the action of the take-up pulling hard upon the needle-thread in a direction toward the feeding-finger.

We claim- 1. In a sewing-machine, the combination of stitch-forming mechanism including a curved needle movable about an axis, a feeding-finger and means for moving it back and forth crosswise the path of movement of said. needle from a point at one side of to a point at the other side of said needle, when the needle is in a remote position, substantially as described. v

2. In a sewing-machine, the combination of stitch-forming mechanism including a curved needle movable about an axis, a feeding-finger and means for moving it back and forth crosswise the path of movement of said needle from a point at one side of to a point at the other side of said needle, when said needle is in a remote position, a back gage, and means for moving said back gage toward and from said feeding finger, substantially as described.

3. In a sewing-machine, the combination of stitch-forming mechanism includinga curved needle movable about an axis, a feeding-finger adapted to enter the channel of the sole and means for moving said feeding-finger back and forth across the path of movement of said needle from a point at one side of to a point at the other side of said needle, when said needle is in a remote position, substantially as described.

4. In a sewingmachine, stitch forming mechanism, a feeding-finger against which the work is held pressed by the action of the needle-thread take-up and means for moving it across the path of movement of the needle while the work is so held, substantially as described.

5. In a sewingmachine, stitch forming mechanism, a feeding-finger, means for movin g it back and forth across the path of movenames to this specification in the presence of 30 two subscribing witnesses.

ZAGHARY TAYLOR FRENCH. WILLIAM C. MEYER. Witnesses:

B. J. NoYEs, J. L. I'IUTCHINSON.

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