US110669A - Improvement in sewing-machines for working button-holes - Google Patents

Description

3 Sheets-Sheet 1'.

, 'l-LMOREAU. SEWING MACHINE FOR WORKING BUTTONHOLBS. No. 110,669,

Patented Jan. 3, 1871.

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3 Sheets-Sheet 2. E. MOREAU.

Button-H0|e Sewing-Machine. No. 110,669.' Patented Jan; 3, 1871.

Q 7 'I'nnerficrr- E. MOREAU. SEWING MACHINE FOR WORKING BU'TTONHOLES.

.No 110,669. Patented Jan. 3, 1871.

. Tnnenlor I 3 SheetsSheet 3.

ttuiirt can an (tithe EUGENE MOREAU, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR TO HIM- SELF, JAMES W. HAGGERTY, AND SAMUEL HILL.

Letters Patent No. 110,669, dated January 3, 1871.

IMPROVEMENT IN SEWING-MACHlNES FOR WORKING BUTTON-HOLES.

The Schedule referred to in these Letters Patent and making part of the same.

1'0 al-l whom it 'nmy concern:

Be it known that I, EUoicX-n Monnntt, of the. city and county of San l rancisco, State of California, have invented certain ncwand useful Improvements in Attachments to Sewing-Machines for Making Button-Holes and Embroidcr and I do hereby declare that the following is a full, clear, and exact description of the same, reference being'had to the accompanying drawing and to the letters marked thereon.

This invention relates to that class of sewing-mm chines which is provided with a frame for holding the cloth, which is moved by proper mechanism in different directions while the needle is out of the cloth, for the purpose of embroidering 0r stitching button-holes; and'consists in certain details of construction which will be fully described hereinafter.

In the drawing Figurel, sheet 1, represents a plan view of the cloth-plate of the Florence sewing-machine, having my improvements applied thereto, a part of the 00vering-plate being broken away to expose the mechanism below.

Figure 2, sheet 2, is a plan view of the cloth-plate and frame from beneath.

Figure 3, sheet 3, is a side elevation of the arm and lever for operating the devices for moving the cloth-holder with the cloth-plate and holder in section.

Figure 4, sheet 3, is a partial view in elevation of the cloth holder, showing the upper clamp with its eccentric-lover.

Figures 5 and (3, sheet 3, are views in detail ofthe lever and pawl for operating the cams. which actuate the cloth-holder.

Figures 7 and 8, sheet 3, are partial views in detail of the cloth-holder, showing its adjnstingqain, s, and also the pin L which bears against the spring L.

Figure 9 represents a detached view of the pin .9 with its plate, by means of which it is secured to the cloth-holder; and

Figure 10 represents a side elevation of the needle arm and strap, to the arm of which latter is connected the arm 8 for operating the pawl 2.

To enable others skilled in the art to which my invention appertains to make and use the same, I will now proceed to describe fullyits construction and operation.

A represents the bed-plate, which is secured to the frame of the sewing-machine in any proner inunner.

I preferably usc,howevcr, the usual construction, whicn is shown in 2, sheet 2, consisting of lug B and socket (l, in which latter is inserted a spring pin to hold it in place. I

D is a central opening for receiving the bridge of the sewing-machine, the upper surface of which is flush with the upper surface of the bed-plate.

The upper surface of the bed-plate is recessed near its circumterencc, as shown in fi 3, sheet 3, for the purpose of receiving the cam-plates or rings 1 It, which are covered, and held in position by the topplate 1, provided with a central opening for the movement of the cloth-holder.

These cam-plates are rigidly secured together, one

upon the other, and consequently can be formed of a single piece, if desired.

The plate P has a centrally-located circular opening, the edge of which is formed almost entirely of notches, as shown in fig. 1. Its outer edge is smooth.

The plate It has an eccentric inner circle, the edge of which is almost entirely smooth, being provided with notches at one point only. Its outer edgeis provided with teeth, as clearly shown in fi 1.

These plates or rings are actuated by means of a pawl, 2', figs. 1, 3, 5, and 6.

This pawl works in a slot in the frame, and is pivoted in the slotted lever 2, and provided with a spring which keeps its face in contact with the teeth of ring It.

The lever 2 is pivoted in the hanger 3, ti". 3, and is actuated by the arm 8, which is itself operated by a pin, 10, fig. 10, on the strap-arm 7, attached to the shaft of the needle-arm.

The pin 10 works in a slot, 9, which is constructed ,in the arm 8, for the purpose of causing the latter to movc'only when the needle is out of the cloth.

The foregoing description relates to the construction of the cam-plates and the manner of operating them.

The means employed forcommunicating their movements to the cloth-holder will now be described.

Q represents a sliding plate, which moves in a suitable recess in the bed-plate, and is provided with pins; q q, as shown in fi 1.

The pin q bears against the inner edge of the camplate I, andis operated thereby. It is preferably provided with a friction-roller.

The 'pin q bears against the lever O, which, in its turn, bears, by means of its projection N, against one side of the cloth-holder, and presses the latter against the spring M.

These devices cause the lateral movement of the cloth-holder as follows:

The revolutions of the cam plate P press forward the sliding bar Q, bymeans of its projections,- and the cloth-bar, in its turn, causes the holder to move to one side, the return movement being effected by the spring M, which forces the pin q into the depressions ot' the cam-plate as the latterrevolves.

The fonvard-and-backward movements of the cam or cloth-holder are caused by the action of the cam It on the pin 8 attached directly to the cloth-holder,

in connection with the spring 7a acting on the pin L.

G- represents the. cloth-holder, which is provided with two arms, one having a pin, I, and the other two longitudinal slots.

In the first of these latter is secured the pin 8 attached to a plate made adjustable by means of a setscrew.

In the secondis located the screw which secures,

By means of this construction the arm of the cloth-- holder, and also the presser, are securely held fromdisplacement by means of tne screw, while the former is permitted to move freely longitudinally when actuated by the cam-plate.

To the extreme end of the arm of the cloth-holder is attached a pin, L, which extends downward through the slotted bar Kbelow, in which is located the spring 7:. i

This box is pivoted at its forward end to the frame, in order that itmay swing freely .to'adjust itself to the lateral movements 'of the cloth-holder.

The upper clamp F'is provided at its rear end with an orifice, which is placedover the shouldered pin J, and near its center with a second orifice, through which projects the pin 1, on the top of which 'an cecentric-lever, H, is-pivoted, a spring being inter. posed on the standard between the clamp and lower plate.

The front end;of the clamp isprovided with avcentralslot, and has its face formed into teeth, as shown.

The front end of the carrier G is provided with a central'opening, having beveled edges, in which is secured, in a suitable recess, a thin plate, y, provided also with a central opening.

This plate is provided with a concave upper surface, for the purpose of bringing the cloth close down to the bridge of thesewiug-machine.

The frontend, of the presser E is divided, and providcd with 'roundedfaccs .of' unequal length.

It is also so located as to press firmly upon the cloth about the needle, it being designed to hold, it'when the needle-is making its upward movement.

The operation of my machineis as follows:

The cloth is firmly held in the holder 'bymeans o the upper clamp.'

The holder itself 'is moved. in difierent directions by thecam-rings P R, which actuate the intermediate operating mechanism before described.

The movement of the cloth in difi'erent directions causes,- of course, the needle to stitch the'cloth at different points corresponding to the movements of the holder.

The cams shown are especially adapted for stitching button-holes. They are, therefore, so constructed as to give the holderan extended reciprocating movenoses ment laterally, in connection. with a very slight baclc' ward movement for the purpose of stitching one side of the button-hole, and an extended movement forward and back, and a very slight movement laterally, fol-the purpose of stitching the end of the buttonhole, and a repetition of the first operation (except-, ing that the holder moves forward) for stitching the greater or lesser distance, according to the depth of r the notches, and a series of stitches would bemade,

during the operation of theimachine, in the same place.

To give the holder the forward-and-back movement necessary to stitch'the entire hole is the oifise ot' the cam-ring B.

This, being' provided with a central ring eccentric to the needle, causes the pin, against'which its round edges press, to more from the needle and permits it to be pulled toward. the needle through the action of the spring 7:, according to the relation the edge bears to the pin.

The cam-ring P, therefore, it will be understood by Its connections, causes the holder to make the proper movements laterally, while the cam-ring ltcanses the proper movements in a direction at right angles thereto.

At the top or bottom of the button-hole, where it is necessary to chan e the direction of the stitclnthe cam-ring R is provided with notches,'and the ring P is smooth, or nearly so, but so formed, by changing the curve of its edge, to cause the holder to move slightly-from ,one side tothe other. By locatingthe cams one above the other, and by arranging the pins correspondingly, greater compactness is secured, with freedom of actiouupon the part of each, withontinte ference withthe other,

The main advantages of the constructtion described are compactness and simplicity.

Having thus fully described my invention,

-What I claim as new, and desire to secure by Letters Patent, is'- 1. The ca'msP R, provided withuotched and smooth edges,- as described, located in diflerent planes, in combination with pins in corresponding planes, all for operating the cloth-holder, as described. 2. The cams P R,- in combination with the sliding barQ provided with its pin, lever 0 with proj ection N, spring M, and cloth-holding frame F G with its pin .9, pin I, andspring 3. The pan! 2, with itsispring, in combination with the lever 2 and hanger 3, as described.

- 4. The pivoted box K with its spring, in combination with the plate A and pin L, as described.

In testimony whereof I have hereunto set my hand and seal. v

' EUGENE MOREAUJ Witnesses O.- W. M. SMITH, H. S. TIBBEY.

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