US1308456A - William - Google Patents

Description

\ ABM suPPTfifi run SEWING MACHINES.

APPLICATION FILED NOV. 2| IQIB- 1,308,456. Patented July 1, 1919.

j: ,3 /2 m I C) 8 lnyen/or William O. Fay/0r- WILLIAM O. TAYLOR, 0F MONTREAL, QUEBEC, CANADA.

MOTOR-SUPPORT FOR SEWING-MACHINES.

Specification of Letters Patent.

Patented July 1, 1919.

Application filed November 12, 1918. Serial No. 262,236.

To all whom i! may concern.

Be it known that I, WnmIAMO. TAYnoR, a subject of the King of Great Britain, and resident of the city of Montreal, in the Provincc of Quebec and Dominion of Canada, have invented certain new and useful Imrovcmcnts in Motorupports for Sewingilaehines, of which the following is a full, clear, and exact description.

This invention relates to a. bracket to be attached to a sewing machine for the support of an electric motor, and the object of the invention is to provide a simple, inexpensive bracket adapted to be held on a sewing machine arm by means of the attachments already on the machine and without having to drill holes or provide extra screws or other holding means for the bracket.

In the drawings which illustrate my invention;-

Figure 1 is a side elevation of a sewing machine arm showing the bracket and motor in operative position.

Fig. 2 is an end elevation of the device shown in Fig. 1.

Referring to the drawings, 5 designates the vertical portion of a sewing machine arm, and. 6 the horizontal member, and 7 the drive wheel of same. In order to drive this wheel 7 by means of a motor and without the use of the usual belt pulley driven from the foot lever, I rovide an electric motor 8 having a small friction pulley 9 mounted on a shaft 10, the pulley 9 frictionally en agin the periphery of the drive wheel 7 w on t e motor is placed in operative position. To support the motor 8 in position for engagement with the drive wheel 7, I provide a bracket support 11 which comprises a metal strap extending approximately parallel with the vertical arm 5, but bent over at the top 12 and ha ing a horizontal portion 13, adapted to lie across the top of the sewing machine arm where it is held in position upon the spool spindle 14. This horizontal portion 13 is provided with an aperture through which the spool spindle 14 extends to hold the bracket in place. As a further means of holding the bracket 11 in osition, I utilize tlu set screw 15 which holi s the oiling cover 16 in place on the side of the sewing machine arm. This set screw 15 passes through the aperture in the vertical portion of the bracket adapted to register with the hole through which the screw 15 passes into its cover plate. By this means, that is by means of the ordinary spool pin 14 and by utilizing the set screw 15, the bracket 11 is held in place without further attaching means.

Near' its lower end the bracket is bent outwardly at 17 away from the vertical portion of the sewing machire arm 5 and at the bottom the strap is turned upwardly to form a U-bcnd 18 between the sides of which the supporting post 19 of the motor is held. The U-sha )ed bend 18 is positioned at such an angle t at the motor 8 sup ortcd upon its post 19 will swing clear 0 the sewing machine arm, while the bond 17 in the resilient strap enables the pulley 9 to be held tightly against the drive wheel 7. This obviates the use of any additional springs to hold the pulley against the wheel. The U shaped socket for the post 19 is preferably made slightly narrower at the to than at the bottom and the lower end of t c post 19 may be slightly tapered to fit this socket, so that the motor may be supported normally by frictional en agement between the ost and the socket. .he set screw 20 havmg a spring washer 21 asses through the arms of the U-shaped soc ct and the post 19 to hold the motor firmly in position. While the post is firmly held in the socket, the spring of the washer 21 and the spring of the arms of the socket will enable the post to be swung laterally without loosening the set screw on all occasions.

This device may be constructed very cheaply and can be readily applied to any ordinary type of sewing machine without extra expense or labor. It may also be aplied to drop-head sewing machines without Interfering in any way with their operation.

What I claim is 1. A bracket support for attachment to sewing machines comprising a straphaving a vertical portion adapted to be fastened to the vertical arm of a sewing machine, a horizontal ortion perforated to fit over the spool spindle of the sewing machine, and a U-shaped bend on the foot of the bracket adapted to support the post of an electric motor substantially as described.

2. A supporting bracket for attachment to sewing machines, comprising a vertical strap adapted to be attached to the vertical arm of a sewing machine by means of the set screw of the covcrplute thereof, a horizontal tion of the strap bring; hunt ulltwnlaiij n portion bent over from said vertical strap force the putts 0} Haiti, umtur inn; ungugtv and adapted to be secured at the top of the mcnt with 1511* whwl 52' the smving machine. M svwing machine arm by means of the spool in witnM, whet-mi. 1 huvu hsrunntu set spindle, a U-shaped bend on the foot of said my hamL bracket adapted to receive the supporting post of an electric motor, said vertlcal por- WILLIAINE O. TiArr'LUR,

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