公开(公告)号：US4261027A

公开(公告)日：1981-04-07

申请号：US41447

申请日：1979-05-22

申请人： Lloyd E. Chapman ,  Dennis W. Pedley

发明人： Lloyd E. Chapman ,  Dennis W. Pedley

IPC分类号： B61L5/18 ,  F21V5/04 ,  F21M3/14

CPC分类号： B61L5/1845 ,  F21V5/04

摘要： The separate reflector and light bulb components presently used in flashing-light signal apparatus employed at railway crossings are replaced by a sealed-beam type incandescent reflector lamp having a window-aperture in the concave reflector portion of the lamp envelope which is adapted to be aligned with a side opening in the lamp-housing of the signaling apparatus and thus permits the operation of the light source inside the sealed-beam lamp to be checked visually by the engineer of an approaching train. Additional cost and functional advantages are obtained by also making the separate red-colored lens component of the signal apparatus an integral part of the sealed-beam warning lamp and by using a long-life halogen-cycle type lamp component as the light source within the sealed-beam reflector envelope.

摘要翻译： 目前在铁路路口使用的闪光灯信号装置中使用的单独的反射器和灯泡组件由在灯壳的凹面反射器部分中具有窗孔的密封光束型白炽反射灯替代，其适于对齐 在信号装置的灯壳中具有侧面开口，从而允许由接近的列车的工程师目视检查密封光束灯内的光源的操作。 通过使信号装置的分开的红色透镜部件成为密封束报警灯的组成部分，并且使用长寿命卤素循环型灯部件作为光源内的光源，可以获得额外的成本和功能优点 密封梁反射器外壳。