US1802392A - Signal lamp - Google Patents

Description

L. O. PARKER April 28, 1931.

S I GNAL LAMP Filed June 13, 1927 Patented Apr. 28, 1931 7 UNETEDSTATES ENT OFFICE LESLIE O. PARKER, OF MTDERSON,I1=TDIANA, A$SIGNOR TO DELCO-REMY CORPORATION;

. OFLDAYTON, OHIO, A CORPORATTON OF. DELAWARE,

SIGNAL LAM-r 1 Application filed June 13,

This invention relates to Combination stop and rear end signal lamps for automotive vehicles, and more particularly to the type of lamp having two light chambers illuminated by one incandescent bulb having two spaced filaments differing in candle power and disposed respectively in the light chambers. The light chambers are closed by panes or lenses providing, when illuminated,

the stop and rear end signals, IGSPQClFiVGIY One of the objects of the present invention is to provide'a lamp of this type which is durable and rugged and which may be produced at low cost.

Further objects and advantages of the present invention will be apparent from the following description, reference being had to the accompanying drawings, wherein a preferred form of embodiment of the present invention is clearly shown.

In the drawings: 1

Fig. l is a front view of a lamp embodying the present invention.

Fig. 2 is a sectional view on the line 22 of Fig. 1.

Fig. 3 is a view with the lamp door removed looking in the direction of the arrow 3 in Fig. 2. a

Fig. i is a sectional view on the line tlof Fig. 2.

Fig. 5 is a fragmentary view showing the clinch washer which secures the mounting studs or screws to the switch case.

h Fig. 6 is a fragmentary sectional view on the line 66 of Fig. 2.

Referring more particularly to Figs. 2 and 3, the lamp housing has its back wall apertured at 21 to receive a plug 22 attached to the flange 23 surrounding the aperture The plug 22 is provided with an opening 24 for receiving a tang 25 bent from the flange 23 into the opening in order toprevent removal of the plug 22 from the housing 20. The plug 22 is provided with a socket 26 for receiving an electrical connection plug 7 which is retained within the socket by the usual bayonet slot of the socket 26, being shown at 27. The plug 22 insulatingly supports electrical conductors 28 and 29 which bear yieldingly upon in- 1927. Serial No. 198,402.

sulated terminals 30 and 31 respectively er a lamp bulb base 32 which extendsthro'ugh a bracket-33 and supports within the hous ing a bulb 34c enclosing incandescentrfila- f ments 35 and 36. The filaments 35 and 36 are located in light, compartments 37 "and 38*respectively which are separated by a l partition 39 integral with the bracket 32 and joinedtherewith by a portion 400i channel-shaped cross section." The partition" 39 has a hole 39a through "which the bulb 34 extends. The bracket p0rtion40 is secured to the v back of the housing 20 by a bolts-l having' 'a head 42 bearing against the inside of the 'bracketportion l0 having a square portion 43 extending through aligned square holes in the bracket-portion and in the housing back wall. The bolt 41 is secured by a clinch washer which engages thethreadsof the bolt andthe wall of the housing 20. A bolt 45 is secured to the back of the housing 20 in like fashion.

through which the lamp base 32 extends.

The flanges 51 areprovided' with bayonet slots 52 each for-receiving a'pin 53 extend The bolts 41. serve as studs to fasten the lamp ing from thelamp, base 32. By providing the flanges 50 and 51 inalternately spaced relation and at with each other angular- 1y with respect to the lamp base 32, the base is held rigidly by the bracket 33.

The lamp door is provided preferably by a molded pane or lens 60 which is held by a be'zel ring 61 against a clamping ring 62' having the same generalshapeas the bezel" ring but small enough to 'fit within the'housing 20. The ring-62 bears against a plurality' of lugs 63 formed'asshown in Figs. 2 and 3 by partly breaking away and bending in thermetal of the housing to form ledges against which-the mounting ring 62 may be clamped when the bezel ring 61 is secured to the housing by the screw (34:. I11 order to limit the flexing of the pane 6O inwardly, thus to prevent damage thereto,

- the pane is provided with a surface 65 adapted to engage the front edge (36 of the partition 39. lhe pane or lens 60 is stained or otherwise colored a ruby red with the exception of the letters of the word Stop which show either deeper or lighter in color by transmitted light than the main portion of the pane 60 in order that there will be a contrast when the stop signal is illuminated.

The bottom wall of the lamp housing is provided with an opening 70 for receiving a pane of glass 71 which is secured by clamp brackets 72 and screws 73. When the lamp is mounted upon the rear of the vehicle so that the pane 71 is slightly above the rear license plate, this plate will be illuminated by a light shining through the pane 71.

The filament 35 is of higher candle power than the filament 36 since the former is burned only intermittently to illuminate the stop signal. These filaments have a common round connection through the metal lamp base 32 and the lamp housing 20 and the vehicle frame to the current source, and are connected respectively with the insulated terminals and 31. The terminal 30 is to be connected with a switch which is operated to close a circuit with the current source and filament 35 when the vehicle brakes are applied. The terminal 31 is to be connected with a switch at the instrument board of a vehicle for completing a circuit between the current source and the filament 36 for illuminating that portion of the pane which is below the partition 39 and serves as a rear end signal or tail lamp.

While the form of embodiment of the present invention, as herein disclosed, constitutes a preferred form, it is to be understood that other forms might be adopted, all coming within the scope of the claims which follow.

What is claimed is as follows:

1. A signal lamp comprising a cup-shaped housing, a U-shaped supporting member having its base secured to the rear wall of the housing, one of the legs of the U eXtending across the housing and forming a partition dividing the housing into two compartments, the other leg serving as a suport for lighting means, said partition being apertured and said lighting means extending through the aperture, and a translucent cover for said casing.

2; A-signal lamp comprising a cup-shaped housing, a U-shaped member, means for securing the base of the member to the rear wall of the housing, one of the legs of the U being widened out and extending from

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