US718624A - Combined lamp guard and shade. - Google Patents

Description

No. 718,624. PATENTED JAN. 20, 1903.

W. J HARTWIG. COMBINED LAMP GUARD AND SHADE.

APPLICATION FILED JAR. 10, 1902.

no MODEL.

U ITED STATES PATENT OFFICE.

WILLIAM J. I-IARTWVIG, OF DETROIT, MICHIGAN.

COMBINED LAMP GUARD AND SHADE.

SPECIFICATION forming part of Letters Patent No. 718,624, dated January 20, 1903.

Application filed January 10, 1902. Serial No. 89,150. (No model.)

To all whom, it may concern.-

Be it known that I, WILLIAM J. HARTWIG, a citizen of the United States, residing at Detroit,in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in a Combined Lamp Guard and Shade, of which the following is a specification, reference being bad therein to the accompanying drawings.

The invention relates to a combined guard and shade intended for use in connection with incandescent electric lamps.

It is the object of the invention to obtain a construction in which the shade is detachably mounted upon the guard and together therewith forms the engaging means for supporting the device from the lamp-socket.

It is a further object to obtain a very simple construction the parts of which maybe manufactured and assembled at small cost.

The invention consists in the construction as hereinafter described and claimed.

In the drawings, Figure l is a longitudinal section through the combined shade and guard as applied to a lamp-socket. Fig. 2 is a similar view of a portion of the guard, showing the manner of engaging it with the socket. Fig. 3 is a section on line 00 00, Fig. 2. Fig. 4 is a perspective view of the guard and shade detached and showing the manner of engaging the one with the other.

A is a guard formed of wire and of any suitable construction except as' hereinafter set forth.

B is the shade. This is in the form of a cone open at both ends and the upper end of slightly greater diameter than the lampsocket.

In order to form a simple securing means for both guard and shade, the former is provided with upwardly-extending arms ct,adapted to embrace the lamp-socket upon opposite sides thereof. These arms are preferably formed integral with the wires 17, forming the lower portion of the guard, and which are bent around the ring 0, extending in .a horizontal plane. A single piece of wire is preferably employed for forming two of the arms a and ribs 1), so as to form a connecting-yoke d at the upper end of the arm a. A portion 6 of the arm a is bent to fit against the lamp-socket between the bead f thereon and shoulder g,

this being the common form of lamp-socket. Above the portion e is an outwardly-bent portion h, which fits beneath the shoulder g and connects directly with the yoke d.

The diameter of the opening at the upper end of the shade Bis larger than the diameter of the socket in the plane of the bead f, but is of lessercdiameter than the distance between the yokes (it when the device is placed upon the socket. Thus said yoke will serve to prevent the lifting ofi of the shade. At the same time the shade forms an important factor in the means for securing the device to the lamp-socket, as it prevents the arms a from bending outward beyond a certain limit.

As will be seen from Figs. 1 and 2, the portions 6 when in engagement with the lampsocket are arranged substantially vertical, while the shade B rests upon the lower portions of the arms a and is separated from said arms at the angle joining with the portions e. The result is that in engaging the guard with the lamp-socket it may be pressed beyond the rib f, the wires springing and the sheet-metal cone also springing somewhat, as shown in Fig. 3. As soon, however, as the portions e. have been pressed beyond the ribfthey will spring inward again, and thus the device will be securely held upon the socket. The lower portion of the guard may be of any suitable construction. As shown, it is in the form of an open guard, sufficient space being left at the bottom for the insertion of the lamp-bulb after the guard is secured to its socket. This construction is not, however, necessary, as a closed guard may be used; but in that case it will be necessary to insert the bulb into the guard by springing out the arms 0t before the shade B is placed thereon. The shade may then be engaged with the guard, after which the bulb can be screwed into its socket and the guard then slipped over the socket beyond the ribs f in the manner before described.

It is to be noted that by reason of thc'construction employed the necessity of any clamping means upon the guard proper for holding it upon the socket is dispensed with.

What I claim as my invention is 1. The combination withalamp-guard having securing-arms extending upward from the body portion thereof and fitting against the lamp-socket, of a conical shade resting upon said arms and corresponding substantially to the taper thereof, said shade being adapted to lock said arms from accidental disengagement from said lamp-socket.

2. The combination with a lamp-guard having securing-arms extending upward from the body portion thereof and having bearings upon opposite sides of the lamp-socket, of a conical resilient shade resting upon said arms and surrounding said socket, said arms and shade together constituting a clamp for detachably engaging the socket the resiliency of the shade furnishing the clamping pressure.

A combined lamp guard and shade com-

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