|Publication number||US1493426 A|
|Publication date||May 6, 1924|
|Filing date||Dec 21, 1922|
|Priority date||Dec 21, 1922|
|Publication number||US 1493426 A, US 1493426A, US-A-1493426, US1493426 A, US1493426A|
|Inventors||Levi M Bowman|
|Original Assignee||J O Phillips, John R Penn|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (5), Classifications (5)|
|External Links: USPTO, USPTO Assignment, Espacenet|
May 6, 1924. 1,493,426
I M. BOWMAN MODIFYING MEANS FOR HEADLIGHTS Original Filed Dec. 21. 1922 iatented May 6, 1924.
LEVI M. BOWMAN, 0F FORT WORTH, TEXAS, ASSIGNOB OF ONE-EIGHTH TO JOHN R. PENN AND ONE-EIGHTH TO J. O. PHILLIPS, BOTH OF FORT WORTH, TEXAS.
MODIFYING MEANS FOR HEADLIGHTS.
Application filed December 21, 1922, Serial No. 608,145. Renewed March 4, 1924.
To all whom it may concem:
Be it known that I, LEVI M. BOWMAN, a citizen of the United States, residing'a-t Fort Worth, in the county of Tarrant and State of Texas, have invented certain new and useful Improvements in Modifying Means for Headlights, of which the fOllOWiIlg is a specification.
My invention relates to headlights for vehicles and more particularly to shutters for headlights: and the object is to provide headlights for motor vehicles which will not have a blinding glare and yet light up the street 'or road with all the light necessary and to provide simple devices which can be provided at small cost and be highly efficient for driving urposes and for preventing collisions. ther objects and advantages will be fully explained In the following description and the invention will be more particularly pointed out in. the claim.
Reference is had to the accompanying drawings which form a part of this application.-
Fig. 1 is a front elevation of a headlight provided with the improvements, a part being broken for illustrating the construction. Fig. 2 is a longitudinal vertical section of the same. Fig. 3 is an enlarged broken sectional view, illustrating the manner of assembling the shutters.
Similar characters of reference are used to indicate the same parts throughout the several views.
The headlight is provided with the usual casing 1 and reflector 2 and electriclight globe or lamp 3. The headlight is also provided with the usual lens 4 and retaining .rim 5. The rim 5 may be formed on the casing 1. A flange 6 maybe formed on the front rim of the reflector 2. This rim with its connections with the casing 1 and rim 5 is of the usual construction, forming no part of my invention. The headlight is provided with the usual fibre ring 7 which bears against the lens 4. The
improvements herein include'a shutter shell-:4
8 which is an annulus and lies within the outer portion of the reflector and is provided with a radial flange 10 which is .creased to engage the fibre ring 7 and is caught betweenthis ring 7 and the flange 6 of the reflector. A plurality of shutters 9 are soldered to the shell 8 and are carried bythis shell but the shutters extend further to the rear than the shell 8 does. The shutters 9 must be horizontally disposed and each shutter is provided with a depending flange 11' at each side. These flanges 11 forming means for spacing the shutters apart and the flanges 11 of one shutter 9 are supported on the upper surface of the next shutter below and the shutters are,held in place by the shell. This structure is held in place by a split wire or steel ring 12. The shell 8 is creased to receive the steel ring 12 and the corners of the shutters 9 with their flanges 11 will also be creased slightly to receive the ring 12. The ring '12 will be sprung in place and all the parts will be bound together, as more clearly il-' lustrated in Fig. 3.
The shutters 9 are horizontally dispose- 1 and arranged in straight lines with light rays coming from the parabolic form of the reflector. The shutters are colored on the upper sides with any flat color but the undersides will be bright. In this manner the light rays emitted from the headlight will be thrown downwardly and notupwardly and the headlights will not throw a glaring light in the faces of the drivers of approachingvehicles. The shutters protect the rays which are projected in straight lines from the lamp or reflector and prevent interference by refracted or wild rays which might shine fabove horizontal lines or planes.
What I claim is In a headlight provided with a casing and a reflector, a lens, a lamp, and a fibre cord;
said reflector havinm a radial flange pro-' to receive said split ring and having deeach end of each slat on the next slat below for spacing ats apart.
pending flanges .at resting said s In testimony whereof, I set my hand, this 14th dayof December, 1922. LEVI M. BOWMAN.
|Citing Patent||Filing date||Publication date||Applicant||Title|
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|US3387124 *||Oct 1, 1965||Jun 4, 1968||Infranor Sa||Illuminating floodlight|
|US4015113 *||May 2, 1975||Mar 29, 1977||Gottschalk Robert E||Apparatus for varying intensity of light|
|US7527395||Feb 1, 2007||May 5, 2009||Ford Global Technologies, Llc||Automotive head lamp louvre|
|US8021031||Feb 1, 2007||Sep 20, 2011||Ford Global Technologies, Llc||Automotive head lamp bulb shield|
|Cooperative Classification||F21W2101/02, F21V11/00|