US1685850A - Lighting attachment for sewing machines - Google Patents

Description

- R. F. MST

LIGHTING ATTACHMENT FOR SEWING MACHINES Filed Jan. 2]., 1927 B Shwm -shefit 11 W. IF. ILIIST LIGEi'I'ING ATTACHMENT FOR SEWING MACHINES Filed Jan. 21 1927 2 Sheets-Sheet 2 ldt ttlll RAYMOND F. LIST, OF IBELVIDTEEE, ILLINOIfi, ASSIGNOR TO NATIONAL SETTING MA- CHINE 'UOIVIPANY, 01E BELVILDEJLtE, ILLINOIS, A. CORPORATION OI ILLINOIS.

LIGHTING ATTACHMENT FOR SEWING: IMAOIIINES.

Application filed January 21, 1927.

This invention relates to electric lighting devices for attachment to sewing machines, and has for its object to provide a lighting attachment which is simple in construction, inexpensive to manufacture and of maximum utility.

Another object of the invention is to provide an electric lighting attachment which may be readily secured to the gooseneck frame of the sewing machine in the simplest possible manner and without pre-shaping the gooseneck to receive it.

Another object of the invention is to pro vide a lighting attachment which may be so positioned upon the sewing machine as to produce the maximum of illumination of the work without objectionable reflection or shadows. 7

a further object of the invention is to provide a lighting attachment which will not be subject to excessive or objectionable vibration when the sewing machine is in operation.

A. further object of the invention is to provide a lighting attachment with a reflector which will not only shield the lamp bulb from accidental injury but which may be adjustably positioned to direct the rays of light in a plurality of directions, as desired.

A still further object of the invention is to provide the lighting attachment in such posi tion on the machine that it will not interfere or need to be shifted or manipulated by the operator when moving the sewing machme head into the cavity of the usual drop head cabinet, or while placing the cover of a portable machine over the sewing machine head.

Theseand other objects and advantages of the invention will be more apparent as T proceed with the specification. The invention consists in the various devices and combinations of devices illustrated, described and hereinafter more particularly pointed out in the appended claims.

In the accompanying drawings Figure 1 is a side elevation of a sewing machine frame, to the front of which my lighting attachment has been applied.

Figure 2 is a plan view of a portion of the frame with the lighting attachment applied thereto.

Figure 3 is a side elevation of the lighting attachment and apart of the frame, with the reflector and a portion of its support in vertical section.

Figures 4,5 and 6 are sectional views, taken Serial No. 16%,506.

through the lamp reflector in the plane indicated by he on Figure 3, but showing different positions of the reflector.

Figure 7 is a view, in perspective, of the reflector, detached.

Figure 8 is a view in perspective, of the housing support, upon the outer end of which the reflector is mounted.

Figure 9 is a perspective view of a modilication.

Referring to said drawings, it will be seen that the sewing machine frame, commonly known as the gooseneck, comprises a standard a, an overhanging horizontally disposed arm ii, to the forward end of which is secured the sewing machine head the standard being mounted upon a work table I) suitably supported upon a cabinet or table indicated at E.

TVithin the gooseneck and head are contained the usual operating sewing machine parts, which form, per se, no part of the present invention and therefore need not be described.

The lighting device proper consists of a conventional lamp bulb indicated at 1, inserted in a conventional socket indicated at 2. The socket contains the usual switch which may be operated to turn the current on and off, as desired, by manipulating the chain 3. The lighting device as a whole is secured to the gooseneck by means of a bracket support indicated as a whole by the letter F. This support comprises a platemember 4:, provided with an integral. body member 5. The bearing face of the plate member 4: will be so shaped as to fit snugly against and be complemental to the outer surface of the sewing machine gooseneck. The plate f is provided with suitable apertures through which screws 6 are passed, in order to secure the plate to the gooseneck.

The body member of the support F is interiorly bored as indicated at 7 in Figs. 3 and 9, one end of the bore being open to receive the end 8 of the lamp socket 2. The end 8 of the socket may be exteriorly screw threaded to more securely unite the socket 2 to the body member 5. This end 8 is centrally apertured to provide a conduit for the feed wires 9 in the cable 10, which wires are connected to the switch mechanism in the socket 2 in a conventional manner. The cable 10 extends through the bore 7 and through a suitable aperture 11 in the wall of the body member 5, as clearly shown.

till

Surrounding the socket member 2 is a tubular housing support 12 provided at one end with a cut-away portion or recess 13 to accommodate the pull chain 3. The housing 12, which serves also as a support for the reflector, 16, is provided at its forward. end with an enlarged annular bearing ring 14 terminating in a circular shoulder 15. The reflector 16 is shaped so that its end17 will it over the supporting ring 14 of the housing12, the reflector edge 18 resting against the shoulder 15. These parts are made with a nice lit and the frictional contact, while su'flicient to hold the reflector 16 in proper position without vibration, is such as to be easily overcome by the operator when desiring either to remove the reflector 16 from the housing 12 or when desiring to turn it axially about the housing so as to change the direction of the rays of light from the bulb 1. In other words, the reflector 16 is adjust-ably and removably mounted over the end. 14 of the housing support 12.

The end of the reflector 16 is closed and dome shaped as indicated at 19. Intermediate the dome end 19 and the supporting end 17,.the body of the reflector is cut away as indicated at 20.

In the modification shown in Figure 9, the body member 5 is provided at its open end with a forwardly projecting stud 21, exteriorly screw threaded to fit within the longitudinally apertured member 22 of the socket 2. Said member 22 is recessed and exteriorly screw threaded so as to be readily secured to the threaded stud 21. The socket 2 may be locked in position if desired by a set screw 23.

It will be seen that the lighting attachment shown is placed. on the front of the machine, close to and alongside of the overhanging arm B also that the lamp is thus permanent- 1y supported, well to one side of the needle bar head C; that the rays .of light from the lamp bulb will fall obliquely from the operators right and downwardly to the table ,1), and thus illuminate that edge of the presser foot relative to which the edge of the work is usually guided; and that in this position the. casting of objectionable shadows is en tirely avoided.

It will. also be understood that by placing I the lighting device on the front of the machine instead of on the rear, ashas heretofore been done, not only are objectionable shadows avoided, but such reflection of the light as is caused by the rays striking the material or the table D of the machine, will be directed rearwardly and away from the operator rather than forwardly and toward the operator, as occurs when the lamp is placed on the rear of the machine.

It will also be understood that by reason of the adjustability of the reflector 16, the operator may cause the rays of light to ex tend in various directions, as desired. For example, she may wish to have the rays of light fall to her lap and, by turning the refleotor about its longitudinal axis, so that the opening 20 is in proper position, she will get illumination in any desired position.

Another advantage resulting from the lecating of the lamp on the front of the machine is the convenience which is thereby a fforded to the operator to manipulate the switch chain 3.

Again, by placing the lighting device upon the front of the machine, the horizontal arm may be most conveniently grasped by the operator without touching the lighting device, when lowering the mechamsm as a. whole into the chamber of the drop cabinet; and similarly, the lighting device is quite out of the way of the hands of the operator in the act of raising the machine from the drop cabinet into operative position; thus accidental injury to the lamp in the manipulation of the head is entirely avoided.

Another advantage in placing the lighting device on the front of the arm lies in the fact that it leaves the back clear for the attachment of a motor and such other devices as may be desirable.

The use of my invention has demonstrated the fallacy of the heretofore assumed disadvantages of such arrangem.ent,as, for instance, the glare of the light at the front annoying the operator. By the arrangement herein shown and the adjustability of the reflector for the light, I have demonstrated that there is no direct glare from the light to the operator and none from the reflected light upon the work.

In tilting the frame backward to oil the machine parts, as is necessary, the lighting device when positioned in front as shown is not subjected to damage, as not infrequently occurs when the lamp is secured to the rear of the arm.

The dome shaped end of the reflector and the reflector itself protect the lamp bulb 1 from possible damage when the operator may be using a pair of scissors.

Positioning the lighting device upon the front of the arm results in the lamp bulb casting the light in the most effective position upon the materials and machine parts; and makes the renewal of worn out lamp bulbs and replacement of a new bulb more easy of accomplishment.

Moreover, when the operator desires to read an instruction book, study patterns or make changes in the machine, she is able to quickly and easily remove the reflector 16 and attend to the necessity of the moment in a natural and relaxed position without the necessity of illumination other than that given by the bulb with the reflector removed.

It will be understood of course that by firmly securing the bracket supporting memill teeaeeo ber F by screws 6 or other suitable means to that part of the arm B subject to the minimum of vibration, the lighting device is rendered vibrationless also, and that by directing the opening 20 of the reflector away from the operator, the latter will experience no inconvenience, as the interposed reflector will eflectively prevent heat rays from the bulb 1 annoying the operator.

ll claim as my invention: 7

1. An electric lighting device for sewing machines, comprising a conventional lamp, socket and switch and a reflector for the lamp, and a bracket support comprising a plate, one side of which is complemental to the sewing machine gooseneck, and a body member connected with the other side of the plate, the body member being bored longitudinally, the axis of the bore being substantially parallel with the plane of the plate and extending from one end of the body member to an aper ture in the body wall near its connection to the plate member.

2. The combination with a sewing machine including an upright standard and overhanging arm, of an electric lighting device comprising an electric lamp, a socket, a reflector, and a bracket having one side complemental to the front of the overhanging arm adjacent to its connection with the stand ard, said bracket being rigidly connected to the overhanging arm whereby the lighting device is mounted closely in front of and substantially parallel with the axis of said horizontal arm.

3. lPhe combination with a sewing machine including an upright standard and overhanging arm, of an electric lighting device comprising an electric lamp, a socket, a reflector, and a bracket having one side coinplemental to the front of the overhanging arm adjacent to its connection with the standard, said bracket comprising a plate member and an integral, elongated body member having a bore extending therethrough from one end of the body member to an aperture in the wall of the body member, the bracket being rigidly connected to the overhanging arm whereby the lighting device is mounted closely in front of and substantially parallel with the axis of said horizontal arm.

lln testimony, that I claim the foregoing as my invention I afix my signature, this 12th day of January, 1927.

RAYMOND r. tier.

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