US1243316A - Lamp attachment for sewing-machines. - Google Patents

Description

w. w. & c.G.MccLAY .1

LAMP ATTACHMENT FOR SEWING-MACHINES. APPLICATION FILED MAR. 13, 1917.

Patsnted Oct. 16, 1917.

WILLIAM W. McCL-AY AND CLARENCE GILBERT Mic-CLAY, CHICAGO, ILLINOIS.

"LAMP ATTACHMENT FORSEWING-MACHINES.

teasers.

Specification of Letters Patent.

Patented Get. 16, 1917.

Application filed March 13, 1917. Serial No. 154,520.

To all whom it may concern Be it known that we, WJLLIAM lV. Mc-

' CLAY and CLARENCE (1i. )lVCLAY, citizens of the United States, residing at Chicago, in the county of Cook and State of llhnois. have invented. new and useful improvements in Lamp Attachments for Sewing- Machines, of which the following is a specification.

The device which is the subject-matter of the present application for patent is de signed for holding an electric lamp on a sewing machine so that the work may be better seen by the operator, and its object is to provide a novel and improved holder which is capable of a wide range of adjustment in order that the lamp may be positioned to illuminate the desired place.

The object stated is attained by means of a combination and arrangement of parts to be hereinafter described and claimed, and in order that the same may be better understood, retterence is had to the accompanying drawing forming a part of this specification.

In the drawing- Figure 1 is a side elevation showing the application of the invention;

Fig. 2 is a plan view thereof, and

Figs. 3 and 4 are sectional details on the line 33 and respectively, of Fig. 1.

Referring specifically to the drawing, 5 denotes the bracket arm ol a sewing machine rising from a column 6 provided with a base 7. said arm having at its outer end a head 8 supporting the needle bar and by a thumb screw 14.

other parts. The lamp supporting device is applicable to any ordinary sewing machine, and as the structure of the latter is immaterial to the invention, a detailed description thereof is not necessary. The base 7 is hinged to the table top 9 by a hinge pin 10 carried by the latter and passing through a lug 11 on the former, with a set screw 12 passing through the lug and engaging the pin. This is a construction commonly employed in drop-head sewing machines and nothing is claimed with respect thereto.

The lamp support comprises a base or attaching plate 13 fastened to the back of the column 6 and having at the top a laterally extending lamp-supporting bracket arm. The base plate is secured at its upper end At the bottom of the base plate is a lateral bend 15 seating on the base 7 and having a downturned flange 16 at its outer end which extends over the edge of the base and has a perforation to receive the pin 10. It will be understood, of course, that before the base plate is mounted in place, the hinge connec tion between the base 7 and the table top 9 must first be taken apart, and after the pin 10 is passed through the aperture in the flange 16, the parts are reassembled. For large machines, such as shoe-sewing machines, an additional screw 17 may be provided for fastening the plate 13 to the column 6. v

The plate 13 has a lateral extension or arm 18 at the top seating close to the arm 5, said extension having atop recess 19.

Parallel to the arm 13 is an arm 20, spaced laterally and outward therefrom and joined thereto at its inner end by integral webs 21. On the outer face of the arm 20 is pivoted a bracket arm 22 having at its outer end a hinged lamp-supporting section The hinge connection 2- between the arm 22 and its section 23 is such that the latter may be swung in a horizontal plane. The arm 22 is pivoted to swing in a vertical plane, the pivot being a screw 25 provided with a wing nut 26 so that the arm may be locked in adjusted position. The parts 22 and 23 extend alongside the bracket arm 5 at the back thereof, and the hinge 24 is so constructed that the part 23 can swing inward only.

The part 23 has a vertical socket 27 to hold a lamp cord plug, and beyond the socket it is made tubular as shown at 28 to receive the base of an ordinary incandescent electric lamp 29. Before the lamp is screwed on, a sleeve 30 carrying a shade 31 I is slipped over the part 28, the shade being positioned above the lamp as shown in Fig. 1 to throw the light downward. The lamp is located adjacent to the head 8, and the light is therefore thrown down on the'work. The sleeve 30 has spring fingers 32 to grip the part 28 and prevent the shade from slipping out of adjusted position. As the sleeve is rotatable the shade can be set in any desired position to shield the operator from the glare of the lamp.

In usual position, the. bracket arm supporting the lamp 29 is positioned as shown in Fig. 1 so that the light is thrown down on the work. If a general light, is desired, the wing nut 26 is loosened to permit the arm 22 to be swung upward, and the section 23 is then swung inward to rest on top of the arm 5. With the device in the last men;

tioned position the part 19 engages the bot-"t tom of the section 23 and prevents the same from being jarred toward the head 8. If the Wulk at the needle is to be watched closely, the lamp support is dropped until the lamp nearly touches the table top 9. The device does not interfere with the droping of the machine into the table, as it is ocated alongside the bracket arm 5 and beneath the hinged board when it closes the top of the machine over the dropped head.

Then the arm 23 is in horizontal position, strain on the hinge 26 is relieved by an extension 33 of the arm 20 extending beneath the arm.

It will be noted that the hinge 24 extends obliquely with respect to the arms 22 and 23, the hinge being arranged in this manner in order that the lamp-supporting portion 28 may be swung beneath the sewing machine arm 5 when the latter is dropped into the table. To do this, the arm 22 is first swung downward about the pivot 25, and the arm 23 is then swung inward to come beneath the arm 5 clear of the head 8.

We claim 1. The combination with a sewing-machine bracket arm; of a base plate fastened thereon, a bracket arm carried by the base plate and pivoted to swing in a vertical plane, said bracket arm having an outer section which is hinged to swing in a horizontal plane, lamp supporting means on said section, and an arm extending from the base plate, on which arm the outer section seats.

2. The combination with a sewing-machine bracket arm; of a base plate fastened thereon, and a bracket arm carried by the base plate and pivoted to swing in a vertical plane, said bracket arm having an outer section which is hinged to swing in a horizontal plane, the outerend of the section being tubular to hold a lamp and having a socket to receive lamp-cord plug.

3. The combination of a sewing-machine bracket arm; of a base plate fastened thereon, a bracket arm carried by the base plate and pivoted to swing in a vertical plane, said bracket arm having an outer section which is hinged to swing in a horizontal plane, the hinge connection between the bracket arm and its outer section extending obliquely with respect thereto, and lampsupporting means on said outer section.

In testimony whereof we affix our signatures.

WVILLIAM W. MGCLAY. CLARENCE GILBERT McCLAY.

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