US1225247A - Eyelet-sewing machine. - Google Patents

Description

G. S. HILL.

EYELET SEWING MACHINE.

APPLICATION FILED MAR. 6. 1915.

L 5 l7o Patented May 8. 1917.

Warren smarts ornron GEORGE s. HILL, 0F STRAFFORD, NEW HAMPSHIRE, assronon 'ro UNITED snon MACHINERY COMPANY, OF ra'rnnsou, NEW JERSEY, A CORPORATION or NE JERSEY.

ease it.

To all whom it mag concern:

Be it known that I, GEORGE S. HILL, a citizen of the United States, residing at Straii'ord, in the county of Strafl'ord and State of New Hampshire, have invented certain new and useful Improvements in Eyelet-Sewing lVl-achines; and I do hereby declare the following to be a full, clear, and exactdescription of the. invention, such as will enable others skilled in the art to which it appertains tomake and use the same.

The invention relates to eyelet sewing machines in which the work clamp and stitch forming mechanism are relatively movable to form Overseam stitches about the edge of a circular hole or eyelet.

One object of the invention is to provide means by which a metallic or similar eyelet which has already been inserted in. the work may be conveniently and accurately positioned with relation to the work clamp prior to the closing of the clamp, so that the eye-.'

let will be maintained in proper relation to the stitch forming mechanism during the "sewing. To this end one feature of the in vention contemplates the provision of an eyelet positioning device arranged and operated to engage and position an eyelet 1n .the v. )rk clamp previous to the closing of the clamp, and to permit the work clamp and stitchforming mechanism to be brought into sewing relation after the clamp has been closed. The'eyelet positioning device may he of any suitable construction, and may be arranged in any suitable manner so that it will properly cooperate with the clamp in positioning, and holding the work. It is preferred, however, to employ a finger, the

end of which is rounded or conical, to en gage and center the eyelet, and to so mount the finger in a reciprocating carrier that it may yield vertically when brought into engagement with the eyelet, andthus accommodate itself to the relative movement between the carrier and eyelet as the eyelet is shifted into position by the pressure of the rounded end: of the finger'against the edges of the eyelet. v

lit-is a further object of the invention to adapt the machine for either cutting and sewing eyelets in the work, or for sewing about previously inserted eyelets. .To this end a further feature of the invention contemplates the provision of means for securing to a reciprocating carrier either an eye- Specification of Letters Patent.

' EYELET-SEWING MACHINE.

let cutter arranged to cut an eyelet int Patented-May 8, 191?;

Application filed March e, 1915. Serial no. 12,529.

material simultaneously with or subsequent' to the closing of the clamp, or an eyelet positioning device arranged to engage and position an eyelet prior to the closing of the clamp.

The invention will bereadily understood from an inspection of the accompanying drawings and the following detailed description of the mechanism illustrated therein. 7

In the drawings, Figure 1 is a sectional,

elevation of so much of an eyelet sewing machine as is necessary to illustrate the application of the present invention thereto; F 1g. 2 1s a detailed view showing the end of the carrier lever with the preferred form of eyelet positioning device secured thereto;

Fig. 3 is a detailed plan view showing the upper work clamping jaws; and Fig. '1' is a a detailed perspective view of an eyelet cut-:

ter adapted to be secured to the end of the.

carrier lever in place of the positioning finger shown in Fig. 2.

1 In the drawings the invention is shown as embodied in an eyelet sewing machine having in general the construction and mode of operation of the buttonhole sewing machine shown and described in Patent No.

7 1,063,880, June 3, 1913, the shape of the cams for feeding the work clamp and moving it laterally, and for rotating the stitch forming mechanism, being such, however, that a circular seam of overedge stitches extending about the edge of an eyelet, hole is formed. In this machine the stitch forming mechanism comprises an upper needle 2'eccen-. trically mounted in a vertically reciprocating needle bar d, an under needle 6,, and cooperating looper S.

The upper needle bar is mounted in a rotary head, and the underneedle and looper are mounted in turret 10, the head and turret being rotated through a single revolution during the sewing about an eyelet The work is held by clamps 12 pivdtallv mounted on plates let which are in turii mounted on av clamp carrier-16. T he clamp carrier is moved longitudinally to bring the clamps into work receiving position, or into sewing position, and to feed the work dur-v ing the sewing by a cam groove 18 formed in a cam gear 20 and engaging a roll 22 mounted on the clamp carrier. The clamp carrier ismoved laterally, and the stitch. forming mechanism is rotated during the sewing through connections with a gear 24, as fully described in the patent above referred to.

\Vhen the machine is at rest the work clamp is open, and is in work receiving position with the upper clamping jaws 26 in position to register with an eyelet cutter or an eyelet positioning finger, as the case may be, secured to the forward end of a carrier lever 28. The carrier lever is mounted on the frame of the machine, and is provided with a rearwardly extending arm which is arranged to be acted upon by a cam 30 on the cam gear 20 when the machine is started.

During the first part of the movement of the carrier lever 28, it operates through connec tions fully described in the patent above referred to to close the clamp, and the clamp is held in closed position during its movement from work receiving to sewing position, and during the sewing, by latching devices indicated at 32. On the return of the clamp to initial position, the latching devices are operated by a cam 34 to release and open the clamp, preparatory to cutting and sewing or positioning and sewing the succeeding eyelet.

In adapting, the machine to out and sew eyelets, an eyelet cutter 36 is secured in the forward end of the carrier lever 28, as indicated in Fig. 1. The cutter is secured in a block provided with a shank 38 adapted to fit within a groove in the end of the carrier lever and to be secured therein by a screw 40. The cutter carrying block so positions the cutter on the carrier lever that during the movement of the carrier lever by its cam the work clamp will first be closed, and then the continued movement of the lever will force the cutter through the work, after which the carrier lever returns to its initial position, where it will not interfere with the forward movement of the work clamp.

In adapting the machine to position and sew about previously inserted eyelets, an eyelet positioning linger 42 is mounted upon the end of the carrier lever 28, as indicated in Fig. As here shown, the eyelet positioning finger is provided with a rounded or conical end 44 adapted to fit within an inserted eyelet and to shift the eyelet into proper position with relation to the work clamping jaws. The finger 42 is mounted in a block 46 which is provided with a shank similar to the shank 38 which fits within the groove in the end of the carrier lever 28. The positioning finger is mounted to slide vertically within a guideway formed in theblock 46, and is held yieldingly in position by a spring 48. The normal position of the finger is determined by a screw 50 which projects into a slot 52 formed in the block 46, and is normally held in engagement with the lower end of the slot by the spring. The normal position of the positioning finger is such that during the movement ot the carrler lever 28, the finger will first engage the eyelet which has been approximately positioned in the clamp by the operator, and will center the eyelet before the carrier lever has moved sutliciently to close the clamp. After the eyelet has been centered the continued movement of the carrier lever will close the clamp, the spring 48 continuing to yield to accommodate the movement of the carrier lever. The lever will then return to its initial position, withdrawing the positioning finger from the eyelet, and raising it into position where it will not interfere with the movement of the work clamp.

While it is preferred to employ the speeific construction and arrangement of parts shown and described in embodying the invention in a machine having the general construction and mode of operation described, it will be understood that this construction and arrangement is not essential to the broader features of the invention, and may be varied or modified as found desirable or best suited to the construction of the machine in which the invention is to be embodied.

Having explained the nature and object of the invention, and specifically described one form of mechanism in which it may be embodied, what is claimed is 1. An eyelet sewing machine, having, in combination, stitch forming mechanism and a work clamp relatively movable to sew about the edge of an eyelet, and an eyelet positioning device for engagin the eyelet and positioning it in the work 0 amp.

2. An eyelet sewing machine, having, in combination, stitch forming mechanism and a work clamp relatively movable to sew' about the edge of an eyelet, mechanism for closing the clamp, an eyelet positioning device, and means for operating the device to engage andposition an eyelet prior to the closing of the clamp.

3. An eyelet sewing machine, having, in combination, stitch forming mechanism and a work clamp, an eyelet positioning'device, mechanism for closing the clamp and for moving it from work receiving to sewing position, and mechanism for actuating the eyelet positioning device to position the eyelet while the clamp is in work receiving position.

4. An eyelet sewing machine, having, in combination, stitch forming mechanism and a work clamp relatively movable from work receiving to sewing position, and a yielding eyelet positioning device for engaging and positioning an eyelet when the clamp and stitch forming mechanism are in Work receiving relation.

5. An eyelet sewing machine, having, in combination, stitch forming mechanism and a Work clamp relatively movable to about an eyelet, mechanism for closing the clamp, and a yielding finger for engaging and positioning an eyelet prior to the ales ing of the clamp.

63. An eyelet sewin machine, having, in combination, stitch forming mechanism and a work clamp, a lever, a yielding eyelet nositioning finger mounted on the lever, inufzh unisms for closing the clamp and for'moving it from position to register with the finger into position to register with the stitch forming mechanism, and mechanism for aetnnting the lever )I'lOI to the closing of the chimp.

An eyelet sewing machine, having, in combination, stitch forming mechanism and A in work clamp, lever, mechanisms for actuating the lever and for closing the clamp, 21 yielding eyelet positioning elevice, and means for removehly securing the positioning device in the lever.

S. An eyelet sewing machine, having, in combination, stitch forming mechanism anxl :i Work chimp relatively movable to sew abont theeiige of en eyelet, mechanism for closing the clamp, 11 yielcling eyelet positioning; device, and mechanism for operating the device to engage and position an eyelet prior to the closing of the clamp.

GEORGE S. HIL Witnesses:

Cnns'rnn E. Romans, LAURA M. Goonnmen.

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