US1582005A - Therapeutic lamp - Google Patents

Description

A ril 20, 1926. 1,582,005

c. s. GROSS THERAPEUTIC LAMP Filed March 15, 1924 INVENTOR far! 61 roSS' ATTOR SIS patented Apr. 20, 1926.

entree: STAT E.

CARL GEORGE GROSS, OF MOUNT -VERNON, NEIV'YQRK, ASSIGNTGEJTO EASTERN LABGRA- I TORIES, INC., OF NEW YORK, N. Y.

THER'ALIPEUTIC LAMP.

Application filed March 15, 1924. Serial No. 699,465.

To aZZ whom it may concern: 7 1

Be it known that I, CARL G. Gnosma citizen of the United States, and resident of Mount Vernon, West'cliester Gounty, New

'York, have invented an Improvement in 'Iherapeutic Lamps, of which the following is a specification.

My device relates in general to electr c portable lamps and in particular to thera T with regard the reflector 1.

peutic lamps of this class. v

My invention covers lanip which is light and compact and in which there is a ma;

mum reflection of rays and a. particular t'y e of construction which gives my lamp advantagesnot found inothers. i

I describe a. preferred torn'r of my lamp in the following specification and drawings from which the-nature and-objectsiot my invention will be made clear. In the drawings, like numbers refer to like parts throughout.

I show in: Fig. 1 a sectional elevation of the entire lamp.

Fig. 2 a. section through 2-2 ot the base and handle.

3 a section through 33 of the base. In the form chosen for illustration, I show a parabolic reflector 1 with which is a base While the base and reflector are preterably indicated as being formed in one piece, they may be equally well made in two parts it found desirable. This reflector, or hood, 1 has a polishec are on its inner curvature which I have indicated as extending from 5 to 6 but which obviously may extend over as much of the inner curvature as may be desired. \Vhile I make this hood of a material which is capable of being polished and secure advantages in weight and simplicity thereby, any suitable reflector may be used without affecting the proper operations of the lamp;

In the base is a socket, or receptacle, 7 and a switch 8 having a. throw 9. This soc-l:- et and switch are connected in any approved manner as is customary; in this case I show them fixedly attached one to the other. In the. socket 7 is a bulb 10 of a size and capacity as may be'i'ound suitable under given conditions.

Vi ithin the base 4 is a positioning, or adjusting ring 11 held in place by screws 12 passing through base 1 into said ring 11. The center opening of this ring is threaded tofit the threads of the'socket 7 as'sliown.

The function of this ring 11 is: twofold. It isinserted by screwing down over the socket 7 and, beinga close fit within the base 4, the socket is held central within the base and the bulb 10 accurately located on the axis of the reflector 1. i

The other function of the ringll is to position the bulb 10 at itscorrect. focal point Itis clear that the combined switch 8 and socket T have a certain degree otlongitir dinal movement within the base #1 and that thebulb 10 may be moved to the same extent. Consequently,after oncehaving located the bulb 10 in its proper focal posi-- tion and the ring 11 set, similar bulbs in duplicate lamps may be quickly and easily focused by first setting each ring in its predeterminedposition. I Furthermore, different positionings of the bulb 10 with regard to the reflector 1 are possible by varying the longitudinal location of ring 11 in base 41.

I also provide a novel method oi attaching a holding member to my lamp; in this instance a handle 13. In the base 4; is a circular opening and extending through this opening is a studli i. This stud 1 1 has a curved flange 15 which seats in the inner curvature of the base The stud l t is internally threaded as at 16. Fitting over this stud 1 1 and abutting the base 4 is a nipple or the like, .17, which is made somewhat longer than that portion, 01' the stud 14 which extends outwardly tronrthe 4-. The handle 18'has a threaded projection 18, said threads being adapted to engage with the internal threads of stud 11. Therefore the handle 13 with projection 18. is screwed into stud 14, the two are brought together under the screw. action until the p 1,582,605 PATENT series.

it t) nipple 17 abuts tightly against both the base and the socket 10, the cord 20 leading to any convenient source of current.

It is an important feature of my lamp that I make the reflector and the base portion in one piece and thereby gain a light and rigid structure without the possibilitythat these two members can move with respect to one another under normal conditions of use.

Furthermore, the parts within the lamp are retained in their proper posit-ions and this is particularly true of the relation of the bulb with respect to the reflector for the reason that the bulb cannot shift from its correct focal position. The advantages of this in effectiveness of use are obvious and are not found elsewhere.

The structure of my device permits of facility in manufacture and, while I may prefer to spin it from a single sheet of metal, many methods may be used to produce my lamp in a simple and inexpensive manner.

In operation my lamp is used as are other therapeutic lamps, the current being con.- trolled by the throw 9 of the switch 8; this throw being most conveniently located for operation by the hand of the one holding the lamp.

From the foregoing it is clear that my invention embodies new and novel advantages not found in other lamps of like class and that other superiorities accrue from the rigidity of the structure, ease of manufacture, and from facility of control in the use of my lamp.

Many variations and changes can be made from the preferred embodiment of my lamp as described and shown without departing from the spirit of my invention and I desire to have my claims interpreted with such variations and changes in mind.

I claim:

1. A lamp including a reflecting member and a base member formed in one piece, a switch member in the base, the actuating element of which projects through an open ing in said base, a bulb holding member in the base, and a positioning member in said base in threaded relation with said bulb holding member.

2. A lamp including a reflector and base formed in one piece, a lamp socket and a switch member in said base and a threaded ring adapted to engage and support and position said socket and switch member against the inner wall of said base.

In testimony whereof, I have signed my name to this specification this 11th day of March 1924.

CARL GEORGE GROSS.

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