US942963A

US942963A - Berth-lamp.

Info

Publication number: US942963A
Application number: US49058009A
Authority: US
Inventors: William S Hamm; Thomas A Legge
Original assignee: Adams and Westlake Co
Current assignee: Adams and Westlake Co
Priority date: 1909-04-17
Filing date: 1909-04-17
Publication date: 1909-12-14
Anticipated expiration: 1926-12-14

Description

W. S. HAMM 6L T. A. LEGGE.

l BERTH LAMP. APPLICATION FILED APR. 17, 1909.

942,963. Patented Dec. 14, 1909.

' In. u@ nl. or/s Wb 'am @f7/amm fC/7011105 STM UNITED STATES PATENT OFFICE.

WILLIAM S. HAMM,l OF HUBBARD WOODS, AND THOMAS A. LEGGE, OF CHICAGO,

ILLINOIS, ASSIGNORS TO THE ADAMS & WESTLAKE COMPANY, OF CHICAGO, ILLI- NOIS, A CORPORATION OF ILLINOIS.'

BERTH-LAMP.

Specification of Letters Patent.

Application led April 17], 1909. Serial No. 490,580.

To all whom it may concern:

Be it known that we, VVILLI'AM S. HAMM of Hubbard Woods, county of Cook, and

' State of Illinois, and THOMAS A. LEGGE of Chicago, countyof Cook, and State of Illinois, citizens of the United States, have invented certain new and useful Improvements in Berth-Lamps, of which `the following is la specification, and which are illustratedin the accompanying drawings,

f forming a part thereof.

The invention relates to pivotal panel f electric lam s for use in such situations as the berth o a'lsleepmg'car, the lamp, when not in use, being within a pocket in the wall and being carried by a pivot member adaptedito-"swing outwardly to uncover the lamp kand turn on the current.

The object of the invention is to rovide a lamp carrier with which there may used an incandescent lamp of considerable size, and to generally improve on known devices i ofl this class.

. vation of the Fig. 4 is a plan section on. the line 4 4 of Fig. 3, the lamp being open.

The device is provided with a frame 10, preferably rectangular and adapted to be secured, as b means of screws, to the surface of a wa l 11 and to bound an aperture i therein. The lamp 12 is carried by a socket 13 depending from an angle plate 14 supported by and at the to of a pair of

doors

15, 16, rigidly secure to ether and, as shown, llocated in perpen icular planes. These two doors are hinged at their meeting edges to the frame l0, as shown at 17, 18, a spring 19 being provided and preferably being coiled about one of the pivots, as 17, for swinging the doors outwardly.

In order that the outer door 15 when closed may be flush with the face of the casing 10, a stop is provided for limiting the inward movement, and such stop is s own at 20 as in the form of a lug adapted to bear4 upon the inner surfaceof the frame 10 when the lamp is closed.

A suitable fastening is provided for holding the lamp in its closed position against the strain of the'sprin 19, and for this purpose there is shown a atch member 21, pivoted to the inner facing ofthe frame 10 and having a lug 22 for engagin a bracket 23 formed on the inner face of t e door 15. A push button 24, set in the frame 10, carries a cam 25, which projects through an aperture in the latch 21 and Vforces the latter backwardly against the resistance of a spring 26.

The inner faces of the outer door 15 and the outer faces of the inner door 16 are concave, as more plainly shown in Fig. 4, and to these faces of the doors, as well as to the lower surface of the plate 14, there is applied a polished lining 27, which constitutes a mirror of such form as to give a substantially universal reflection to the liglit rays. The double door provides a closure for the wall aperture, whether the lamp be in or out of service.

The two

wires

28, 29, leadin to the lam socket are connected, respective ',with

bin ing posts

30 and 31, each carried by an insu ating block, that of the post 31 being plainly shown at 32. For convenience one of these binding posts is secured at the top and the other at the`bottom of the inner face of the inner door 16. Each of the insulating blocks, as 32, carries a metal plate 33, 34, a portion of each

plate

35, 36, con-- stituting the blade of a so-called jack-knife wedge; these blades coperatingieach withl a pair of

spring jaws

37, 38, mounted on insulating blocks 39, 40, lixed, respectively, to the inner faces of the top and bottom members of the frame 10 and being so located that when the lamp-carrying doors swing outwardly the blade switchesA engage the jaws thereof.

At 41, 42, are shown the terminals of the electric circuit, the same being attachedto binding 1posts 43, 44, carried, respectivel by the b oeks 39, 40, and being electrical y connectediwith the

jaws

35, 36.

Vhile we have shown the preferred form of construction, the device may be modified in various respects without departing from the scope of the invention. The arran ement of-the pivots or hinges so that t e doors swing horizontally, is to be preferred, but is not of the essence of the invention.

Patented Dec. 14, 1909.,

' the closure.

By this arrangement the aXis of the lamp is always vertical; a position especially desirable in the case of the Vso-called tungsten lamp 'in lits present state of development.

The device admits of the use of iiicandes cent lamps of standard size, thereby providing ample illumination for reading; a consideration found to be highly desirable in practice.

IVe claim asour invention- 1. In a lamp, in combination, a frame, a closure for the frame opening comprising two rigidly united leaves, and a lamp socket mounted upon the closure.

2. In a lamp, in combination, a frame, a two-leaved closure for the frame opening, a plate spanning the angle between the leaves, and a lamp socket carried bythe plate.

In a lamp, in combination, a frame, a two-leaved closure for the frame opening, a reflector formed on the contiguous faces of the leaves, anda lamp socket mounted upon 4. In a lamp, in combination, a frame, a two-leaved closure for the frame opening, a Yplate spanning the angle between the leaves, a reflector formed on the contiguous faces of the leaves. and the surface of the plate, and a lam socket carried by the plate.

5. In a amp, in combination, a frame, a pair of closure plates for the frame o ening arranged at an angle and rigidly united at their meeting edges and'being pivoted to the frame at such edges, and a lamp socket carried between the plates.

v6. In a lamp, in combination, a frame, a pair of closure plates for the trame opening arranged at an angle and rigidly united at their meeting edges and being pivoted to the frame at such edges, and a plate provided with a lainp socket spanning the angle between the closurefplates. i

7. In a lamp, in combination, a frame, a

.pair of closure plates for the frame opening arranged at an angle and rigidly united at their meeting edges and being pivoted to a pair of terminals connected with the lamp socket and arranged to make contact wit the fixed terminals.

9. In a lamp, in combination, a frame, a pair of closure plates for the frame opening arranged at an angle and rigidly united. at their meeting edges and being pivoted to the frame at suchl edges, a lamp socket carried between. the plates, an electric circuit leading to the lamp socket, and a switch in such circuit one element thereof being mounted with the frame .and the other element thereof being carried by the closure plates.

10. In a lamp, in combination, a frame, :i pair of closure plates for the frame opening arranged at an angle and rigidly united at their meeting edges and beinggpivoted to the frame at such edges, a lamp socket cai'- ried between the plates, an electric circuit leading'to the lamp socket, and a switch in each branch of such circuit, one element of each switch being mounted with the frame and the other element thereof being carried by the closure plates.

11. In a lamp, in combination, a frame, a closure for the frame vopening comprising two rigidly united leaves and being carried by vertical pivots, and a lamp socket mount ed 0n the closure.

WILLIAM S. HAMM. f, THOMAS A. LEGGE.

lVitnesses: l

Lotus V. EGGERT, R G. EMERY.