US1584369A - Headlight - Google Patents

Description

May 11 1926. 1,584,369

. l H. J. GRAHAM HADLIGHT Filed May 10. 1923 invenzion- Patented May l1, 1926.

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HERBERT J". GRAHAM, OF PHILADELPHA, PENNSYLVANA, ASSIG'NR TO ELECTRC SERVICE SUPPLIES CMPANY, OF PHLADELPHEA, PENNSYLVANIA, A CORORA- TION OF PENNSYLVANA.

HEADLGHT.

Application filed May 10, 1923.

.lily invent-ion relates to improvements in headlights whereby interference by dust and moisture with the desired illumination is reduced to a minimum.

fleretofore the efiiciency of headlights has been impaired by the entrance of dust and n'ioisture into as also the condensation of moisture within the case and the deposit of the saine upon the lamp, the reflector and the glass through Which the rays are projected to effect the desired illumination.V

lt is the prinii'iry purpose of this invention to provide a headlight having a ease that will effect the maximum exclusion of dust and moisture While discharging any moisture that may be condensed or otherwise collected therein, to the end that the highest degree or eiiiciency of illumination may be obtained, without impairment by such dust and moisture.

The characteristic features of my invention are embodied in the headlight set out :in the lolloiving description and the aecompauying drawings in illustration thereof.

in the drawings, liig. l is a broken side elevation of the said headlight embodying the invention; Fig. Q is a sectional view on the line 2**2 of Fig. l; Fig. 3 is a sectional view on the lines fixflx of Fig. l, similar to a vieiv on the line dy-3y of Fig. l; Fig. l is a perspective f'ieiv on an enlarged sleale of the clamp illustrated in Fig. 3; and Fig. 5 is a perspective view on an enlarged scale of the iill'ering disk illustrated in Fig. 3.

The headlight illustrated comprises the cylindrical ease body l having the tightly closed back 2. front door 3 and side doors d, each provided With tight joints adapted for obtaining the maximum exclusion of dust and moisture and for preventing deposit thereof upon the glass 5 of the front door, the glass 6 of the side doors, the lamps and 8 whose rays are projected through the respective doors, and the reflector 9 for projecting the of 'the lamp 7.

The door 3 is provided With the maximum degree of tightness by means of the frame seat l() of angular cross-section in which is held a gasket or packing 1l of ll-shaped cross-section having a tightly fitted engagement ivith the periphery of the glass 5. The frame 'Flange l2 entends over and around the forward end of the body l against the pack- Serial No. 637,965.

ing ring i3 of rounded cross-section Which is held in the seat la fired to the periphery of the body slightly to the rear of the forward end thereof. This door is held in closed position with the flange 12 pressed tightly against the packing 123 and the latter is expanded, by means comprising the stud l5 provided ivith the roller 16 carried by the body l and the cam lever 17 fulcrums on the stud i8 carried by the door 3.

The door -l is provided with the maximum degree of tightness by means of the frame seat 19 of angular cross-section in which is a gasket or packing 20 against which the glass i is pressed by the glass (5 adapted for holding numbers to be shown through the glass and the holder 20 pressed against the plate and secured to the door frame. The door frame flange 2l extends inwardly, lies within the flange 22 of the frame 23 fixed to the body i and bears against the packing 2d of rounded cross-section which is held Within the seat 25 integral with the part rfhe doors 4l are held in closed position, by means of the door hinges 25, door yokes 26, and the bolts 27 pivoted to the frames 23 and having the nuts 28 which act against the yokes, the parts 2l being thereby tightly pressed against the parts 2l to expand the latter.

ri`he bottom of the body l and the bottom of the door 3 are each provided with an aperture 29, placed at the lowest parts thereof. A body of filtering material 30, suitably a laminated disk of textile material, that will absorb and pass moisture which may collect in the case While preventing the passage of dirt and dust, is held Within the case over each aperture 29 by an open holder 3l. This holder or fixture as shoivn comprises a ring adapt-ed for engaging the periphery of the disk While leaving the central body portion thereof exposed, feet 32 adapted for resting upon the bottom of the case if desired and holding the disk in place While permitting` such disk to perform its filtering function beneath the ring, and the lugs 33 adapted for securing the holder to the body l and to the frame of the door 3.

rlhus a tight case is provided that will prevent the entry of dust, dirt and moisture While discharging any Water that may be found therein.

Havingdescribed my invention, I elaii'n: A headlight having in the bottom thereof an aperture, a body ot iibrous filtering inaterial (adapted for passing` Water from said f case through said aperture and preventing the passage of dust) disposed Within said ease and said aperture, and a ring having thereon lugs for engaging it to said ease and feet for engaging said material around said aperture. 10

1n testimony whereof I have hereunto set niy naine this 26 daf,T of March7 1923.

HERBERT J. GRAHAM

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