发明名称 Improvements in or relating to light diffusers for tubular lamps
摘要 718,650. Signs. SEIDENBERG FRERES. June 20, 1952. No. 15677/52. Class 3(2) [Also in Group XI] Light transmitting plates bearing advertising inscriptions (signs, letters, numbers and the like) are detachably retained in trough-shaped elements of moulded transparent or translucent plastic assembled end to end, each element having a rectangular downwardly bulging base, side walls 2, 3 formed as multiple facet prisms 4 and having grooved upper edges 11, and end walls formed with lugs 6, 7 to clip over a tubular lamp and thereby support the element. As shown, the periphery of the element base 1 is provided with side flanges 8 and lugged corner pieces 9 to support a detachable plastic plate 10 which may be white or coloured. The grooved upper edges 11 provide for side by side assembly of similar elements as in Fig. 4, the interfitting edges 11 being cemented toegther. To provide for interfitting of the elements of an end to end assemblage, each element may have wedge or other shaped projections moulded on one end wall, correspondingly shaped apertures being provided in the other end wall.
申请公布号 GB718650(A) 申请公布日期 1954.11.17
申请号 GB19520015677 申请日期 1952.06.20
申请人 SEIDENBERG FRERES 发明人 SEIDENBERG JACQUES
分类号 F21V3/02 主分类号 F21V3/02
代理机构 代理人
主权项
地址