US1017173A - Electric-light attachment. - Google Patents

Description

W. S. RYAN.

ELECTRIC LIGHTATTACHMENT.

APPLIGATION FILED OUT. 9, 1911.

Patente d Feb. 13,1912.

2/1 ff W 325% wt nu? I'INIITEDH STATES PATENT OFFICE.

WALTER 5. RYAN, 61: NEW YORIL N. Y., ASSIGNOB T LOUIS HENGEREB, TRUSTEE,

OF NEW YORK, N.. Y. i i

ELECTRIC-LIGHT All'LAGHMIEN'J..

To allwhom it may concern v -Be it known that I, WALTER S. RYAN, a

citizen "of the United States, and a resident) of the borough of Manhattan, city, county,

and State of New York, have invented a not heretofore been realized in such structures. Among them are the following:- The cover attaching or holding devices are entirely out of sightand protected from the weather. The outside of the shade is perfectly smooth, presenting no surface to accumulate dust or dirt which would have a tendency to dull the lamp. The shade may be attached to and detached from the lamp by simply a push and a pull movement with one hand only. This is an important feature since these devices have frequently to be applied to or removed from lamps located on the outside of buildings and at great altitudes so that the workmen require one hand for their own support. The shades are so made that any rain or other water which may get into them will drain away.

Thus they automatically free themselves from snow and rain. The entire bulb of the lamp or a part of it only may be covered by the shade, as desired.

In the drawings I illustrate several different forms in which the invention may be constructed. They all embody the controlling features, that is to say, the shade is held to the lamp bulb by suitably constructed and arranged springs which are located on the interior of the shade and are supported by it, so that the shade during application to the lamp is simply pushed upon it, whereby. the springs are spread a art and put under tension by the passage 0 the largest diameter or the equator of the lamp bulb past them, and they then close toward one an other again about the constricted part of the bulb above the equator and exert a gripping action thereon, thus holding the shade firmly to the bulb, but itmay bereadily-detached therefrom by simply pulling the shade oif Specification of Letters Patent. Application filed 0ctober'9, 1911. s rial 1\ o. 658,532., T

trates a plan view looking into the-open end Patented Feb. 13, 1912.

from the bulb whereby the springs expand again and thus release the shadei' In the drawings Figure 1 illustrates a vertical sectional v1ew of theshade with .a lamp bulb in elevation therein; Fig. 2

of the s ade shown in Fig. 1; Fig. 3 illus-' trates in vertical section a modified construetion, the springs ,being shown in elevation; Fig. 4 illustrates a plan view of the form shown in Fig. 3 ;'Figs. 5 and 6 illstrate vertical sectional views of still other modifications, the springs in both figures being shown in elevation;

In all of the figures the shade "is represented at 1, the springs which are supported by the shade at 2, and the lamp" bulb at 3.

In Figs. 1 and 2 the springs are shown as triangular in general shape, the lower members of each triangle being drawn together 7 i at the bottom of the shade and there held by a drop of solder 1. The very ends of the springs are then passed through a hole 5 in the bottom ofthe shade and on the outside maybe spread to the right and left over the V lower projecting end of the shade, thus firmly-holding the springs in place. The

upper or'cross member 6 of each of' the springs is the resilient part which impinges upon the bulb of the lamp and they are so proportioned relative to the inside of the shade that their ends where theyjoin the inclined members of the. spring of which they form part rest against and. are supported by the'inside wall of the shade. In Figs. 3 and 4 somewhat similar springs are employed. There are, however, three instead-of two of them in each shade and each spring has a resilient cross bar 7 at the upw per end and a single supporting member 8 for each cross bar, the cross bars resting at their ends against the inner wall of the shade the same as before and the lower ends of the members 8 are all gathered together and passed through the hole in the bottom of the shade and clenched over the lower end thereof; also as before, they may be additionally fastened with solder, if desired.

' In Fig. 5 I show a construction in which there are three springs fastenedat the bottom of the shade as before, but they have no cross bar at their, upper ends, on the contrary, they are so shaped thatthey impinge against theinner wall of--the shade about halfway of their length at say the point 9, 1

thus their upper ends which curve inwardly into contact with the bulb of the lam are 'ven the desired stiff s ring action, w ere- 5; the bulb will be firm y gripped.

In Fi 6 I show a constructlon somewhat resembling that shown in Figs. 3 and 4,-except that the lower ends of the springs are supported by being passed through holes made in the side of the shade, as shown, and

clenched over upon its inside. In this. construction the springs get their bearing against the inside of the shade and thus have the requisite stiffness, at the point where they again pass through the wall of the shade from the outside to the inside.

It will be obvious to those who are familiar with such matters that modifications of the details of construction may be adopted without departing from the essentials of the invention. It will also be' noted that under my invention the shade may be made of any preferred size, so that it W111 cover a part only or the whole of the lamp bulb.

I claim:

1. A cover shade embodying a translucent, oup-shaped, solid walled body part, and resilient holding devices on the inside of the body part adapted to hold the same to a lamp bulb, said devices being supported at their lower ends by the body part and given stifi' spring action by contact with its inte nor walls above their ends.

2. A cover shade embodyin I a translu cent, cup-shaped, solid walle body, part having resilient holding devices adapted to 5 hold the same in osition upon a lamp bulb, each of said hol ing devices embodying a downwardly extendm member supported at its lower end by the ody part and a horizontally extending member which engages 0 a with the interior wallsof the body part.

3. In a cover shade for electric lamps, a translucent cup-shaped, solid walled body part havin a perforation in its bottom, reslllent hol i-ng devices for the body part 4.5 embodying members which pass through said perforation and arebent a ainst the appropriate outer surface of the ody part and other members attached cross-wise of the first named membens and which are put under tension and caused to grip the lamp bulb by engaging with the inn body part In testimony whereof I have signed my .name to this specificatiofi in the presence of r walls of the

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