Variable placement interchangeable lamp system
AssigneeRailway Equipment Company, Inc.
InventorDavid K. Fox
Life of this patent
Estimating the term…
Abstract
A variable placement lamp system for use with a supporting member is disclosed which includes a plurality of lamp housings (40) each including a channel for receiving an upper edge of a supporting member. Screw (50) on both sides of the housing (40) are turned until the housing is secured to the support member in a friction fit. Extensible cables (70) with 3-pronged connections connect the lamp circuitry to electrical circuitry to operate the lamps (38) in a predetermined pattern.
Claims20
A lamp arrangement for a railway crossing arm having a signal relay switch circuitry comprising:
- a plurality of electrically actuated lamps disposed in housings separate and distinct from the railway crossing arm;
- fastening means for fastening a lamp housing to any of a plurality of selected locations along the length of said railway crossing arm, the fastening means including clamp means for nondestructively clamping the lamp housing onto the railway crossing arm whereby the lamps can be fastened to the railway crossing arm without requiring drilling or other deformation of the support member;
- and
- cable means for electrically connecting a lamp fastened to any of said plurality of selected locations on the railway crossing arm to the relay switch circuitry.
A lamp system used with a railway crossing arm, comprising:
- a housing portion including a means for holding a lamp controllable by electrical circuitry;
- fastening means for fastening said housing portion to any of a plurality of selected locations along the length of a separate and distinct railway crossing arm, the fastening means including clamp means for nondestructively clamping the housing portion to the railway crossing arm whereby the housing portion can be attached to the railway crossing arm without drilling or other deformation of the railway crossing arm;
- cable receiving means attached to the housing portion for receiving an extensible cable means in a plurality of orientations rotatably offset from each of said orientation providing a different electrical connection between said cable means and said lamp, a first position providing a constant illumination signal, a second position providing an intermittent signal, and a third position providing an intermittent illumination signal reciprocal to the intermittent signal of the second position.
A variable position lamp arrangement for use with signal relay switch circuitry and mountable on a railway crossing arm comprising:
- a plurality of housing portions separate and distinct from the railway crossing arm, each including means for holding a lamp controllable by electric circuitry;
- a plurality of fastening means for fastening each of aid housing portions to any of a plurality of selected locations along the length of the railway crossing arm, the fastening means including clamp means for nondesctructively clamping the housing portions to the railway crossing arm whereby the housing portions can be fastened to the railway crossing arm without requiring drilling or other deformation of the railway crossing arm;
- a plurality of cable receiving means mounted on each of said housing portions for receiving extensible cable means in an of a plurality of orientations, each of said orientations providing a different electrical connection between said cable means and said lamp.
Dependencies are inferred from the claim text.