US710518A - Machine for sewing hooks and eyes on cards. - Google Patents

Description

No. 7|D,5|8. Patented Oct. 7, I902.

G. BOWBOTTOM. v MACHINE FOR SEWING HOOKS AND EYES UNIGARDS.

(Application filed Oct. 10, 1901.)

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No; 7I0,5l8. I Patented Oct. 7, I902.

G. ROWBUTTOM.

MACHINE FOR SEWING HOOKS AND EYES 0N CARDS.

(Application filed Oct. 10, 1901.)

4 Sheets-Sheet 3.

(No Model.)

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No. 710,518. Patented, Oct. 7, I902.

G. ROWBOTTOM. MACHINE FOR SEWING HOOKS A ND EYES UN CARDS.

(Application filed Oct. 10, 1901.)

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(No Model.)

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UNITED STATES PATENT OEEIcE.

GEORGE ROVVBOTTOM, OF IVATERBURY, CONNECTICUT, ASSIGNOR TO AMERICAN PIN COMPANY, OF \VATERBURY, CONNECTICUT, A COR PORA'IION OF CONNECTICUT.

MACHINE FOR SEWING HOOKS AND EYES O N CARDS.

SPECIFICATION forming part of Letters Patent No. 710. dated October Original application filed May 1,1901, Serial No. 58.289.

To It whom it may concern:

Be it known that I, GEORGE RowBoTToM, a citizen of the United States, residing at Vat-erbury, in the county of New Haven and State of Connecticut, have invented certain new and useful Improvements in Machines for Fastening Hooks and Eyes on Cards, of which the following is a specification.

This invention relates to sewing mechanism for fastening hooks and eyes on cards.

In my application, Serial No. 58,289, filed May 1, 1901, of which this is a division, is described a machine for fastening hooks and eyes on cards; and the present application relates to the sewing mechanism forming a part of such machine.

The main features of the present invention relate to take-up mechanism for the sewingthread and to pilot devices for holding the eyes in position during the sewing operation.-

In the accompanying drawings, Figure 1 is a horizontal section of the machineon the line a a in Fig.2. Fig. 2 is a vertical section on the line 1) b in Fig. 1, and Fig. 2 is a detail View of certain parts shown therein. Fig. 3 is a vertical section on the line 0 c in Fig. 1. Figs. 4 and 5 are detail views of the needlebar. Figs. 6 and 7 are detail views of the take-up-actuating mechanism in diiferent positions. Fig. Sis a plan View of the take-up device.

The hook and eye feeding and gripper mechanism have been omitted from the drawings, as they do not relate to the present invention, and only so much of the other mechanism of the'machine is shown as cooperates directly with the sewing mechanism and is Divided and this application filed October 10, 1901. Serial (No model.)

fed as the sewing is effected. The main driving-shaft 5, carrying the driving-pulley 6 with clutch 7, is journaled in suitable hearings in the machine-frame.

Ihe card-feeding mechanism (see Figs. 1 and 2) comprises a track or way for receiving the cards, defined by guides 67 on the table 9, and feed-rolls 7O 71, arranged in two series, respectively, below and above said track and engaging frictionally with the cards. The upper feed-rolls are provided with adjustable spring tension devices 68. The lower rolls 70 are connected by gears with a shaft 76, carrying a ratchet-wheel 77, which is engaged by a pawl 78 on an arm or lever 79, to which is pivoted one end of a bar 80, whose other end is forked and slides over a hub 81 on the shaft 5. A cam on this shaft 5 engages a roll 82 on the bar 80, and a spring 86 is arranged to press this roll toward the cam, said spring being connected at one end to the standard 3 and at the other end to a link 83, pivoted to a bell-crank 66, which is also pivoted on standard 3 and engages a pin 84 on the bar 80. Cam 85 has two projecting portions, which cause the bar 80 to reciprocate twice in each rotation of shaft '5, and there are consequently two feeding movements of the feed rolls for each such rotation, for each such rotation results in the delivery of a single pair of hooks and eyes on each side of the card, and as each eye and hook has two sewingeyes there must be twice as many stitches and twice as many feeding movements as there are pairs of hooks and eyes in each row. At intervals, owing to the filling of one card and the passage to the next, it is desirable to make an extra feed without stitching, and to this end I provide a stop-disk 88 on a stud-shaft 215, fixed on a frameblock 216 and carrrying also a ratchet-wheel 218, engaged by a pawl 219 on the reciprocating feed-bar 80, so that said stop-disk is turned in accordance with the feed of the cards. This stop-diskis provided with notches 89 therein,adapted to receive a lug 90 on the bar 80. 7 Said lug normally rests against the periphery of said stopdisk, and thereby limits the back stroke of the bar 80, so that only a limited feed is ef- The above-described feeding means is shown and claimed in my divisional application, Serial No. 78,162, filed October 10, 1901, but is herein described for the reason that it is intimately connected with the take-up mechanism now to be described.

The take-up-regulating device is also controlled by the disk 88. The link 83 is connected at its upper end to a lever 220, pivoted to a fixed support and carrying a takeup bar 221, extending over the threads 150, which pass over fixed bars 222. As the link 83 rises before each feed,it pulls bar 221 down and gives a take-up action during the rise of the needle-bar and also draws thread from the spool for the next stitch. At the end of each card, however, an extra quantity of thread is required on account of the extra feed, and at such time one of the notches 89 in disk 88 will allow an extra movement of bar 80, bell-crank, and link 83 to give the extra pull on the thread. When the engaged hooks and eyes are deposited by the gripper mechanism (not shown) on the card, they must be held in place during the sewing operation, it being understood that the grippers must immediately be withdrawn from them to enable the sewing to be effected. For this purpose a presser-foot 119 is provided on each side of the machine, adapted to engage with a hook and eye and firmly hold same without interfering with the sewing. The presserfoot must be brought down on each hook and eye pin, hold it during the first stitch through the sewing-eyes on one side, then feed forward with it to bring the other sewing-eyes into position and hold it during the sewing of the latter eyes, and then rise and remain up until the hook and eye are fed forward and another pair is deposited in place. This operation is effected by means shown in my original application above referred to and forming no part of my present invention.

The needle-bar 133 is mounted to slide vertically on bracket2 and carries four needles 134. A shaft 141, journaled in bed 1, is connected by gears 142 143 168 to shaft 5 in such manner as to rotate twice for each rotation of shaft 5. This shaft 141 carries an eccentric 140, operating a link 139, connected by rocking lever 137 and link 136 to the needle-bar, so that in each rotation of shaft 5 the needlebar is given two reciprocating vertical movements. The cross-arm 38 of the needle-bar, which carries the needles 134, also carries two pilot-pins 239, sliding in vertical holes in said arm, and springs 240 are provided engaging with collars 241 on said pins and with brackets 242 fixed on arm 38, so as to press said pins downwardly and hold the collars 241 against the arm 38. As the needle-bar descends to sew the first of two pairs of hooks and eyes these pilot-pins will enter the second sewingeyes of the eyes which are being sewed on and hold the said eyes firmly in position while the first stitch is effected. This is desirable to prevent any lateral or angular displacement of the eyes by the drawing up of the thread through the sewing-eyes of same. By using these pilot-pins I am able to make the presser-foot in the form of a single bridge or fiat block bearing only on the top of the hook and not confining to the shape of the hook and eye, therefore avoiding any liability of the presser-foot to jam or crush the hook in case the latter is somewhat abnormalin shape.

The thread-spools are shown at 150' and the thread-guiding and tension devices at 151 152.

Below or within the table 9 are arranged four loopers 144, formed as hooks on a rockshaft 145, actuated by cam 171 (see Fig. 2) on the shaft 141, which operates a lever 170, pressed by spring 174 against said cam and connected by a link 147 with a crank 146 on the rock-shaft 145, the hooks 144 being thereby oscillated in such manner as to catch and loop the thread at each stroke of the needlebar, hold the loop, and draw the next loop through it in well-known manner to form a chain-stitch. At this moment the presserbar 121 descends and the presser-foot 119 ongages the top of the hook to hold the hook and eye, the gripper-jaws then opening out and retreating. The needle-bar 133 now descends, bringing the pilot-pins 239 in the second sewing-eyes of the eye of each pair and passing a loop of thread through the first sewing-eyes of each eye, such loop being caught by the looper-hooks 144. As the needle-bar descends the springs 240 hold the pilot-pins in engagement with the eyes for a sufficient time to prevent displacement thereof by the drawing up of the thread. The cam 85 now comes into action to turn the ratchet-wheel 77 and feed-rolls 70, so as to feed the card the distance from one sewing-eye to the next, the resser-foot partaking of this feeding motion, as above explained. The needle-bar then descends again, the pilot-pins being without function in this stroke, which serves to stitch the second sewing-eyes. The presserfoot 119 then rises and the card is fed another stroke by cam 85, and the operation as above described is repeated. The take-up and the special operations that take place at the end of card have already been described.

Having thus described my invention, the following is what I claim as new therein and desire to secure by Letters Patent:

1. In a machine for sewing hooks and eyes on cards, the combination with the sewing mechanism and its needle-carrying means, of a pilot device connected with the needle-carrying means so as to move therewith and adapted to engage an eye that is being sewed, and prevent displacement of same.

2. The combination with the needle-carryine means and its operating mechanism, of a pilot-pin sliding in said needle carrying means and adapted to engage in a sewing-eye of an eye that is being sewed, and a spring for pressing said pin downwardly to maintain it in said eye while the needle is rising.

3. In amachine for sewing articles on cards, the combination with the card-feeding means, and the sewing mechanism, of a take-up device for the thread and an actuating mechanism comprising a reciprocatory bar connected to actuate the card-feeding means, a stopdisk connected to be operated by said reciprocatory bar and adapted to limit its movement, and provided with a notch permitting at. intervals a longer movement of said bar,

vice, of a device connected to the card-feeding means and operating the take-up device, and adapted to give an extra feed and an extra take-up at intervals, substantially as and for the purpose set forth.

5. In a machine for sewing hooks and eyes on cards, the combination with the card-feed-V ing means and the sewing means, of a takeup mechanism for same comprising controlling devices adapted to give an extra take-up 5 at the end of every card.

GEORGE ROWBOTTOM. Vitnesses:

HUGH'A. PENDLEBURY, W. R.'\VILLETTS.

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