GB805175A - Improvements in electronic apparatus - Google Patents

Abstract

805,175. Electrical apparatus assemblies. COMMISSARIAT A L'ENERGIE ATOMIQUE. May 11, 1956, No. 14820/56. Class 37. In a rack mounting of electronic apparatus the apparatus is mounted in a plurality of sliding drawers which are assembled together side by side in a common stand. The drawers which comprise front panels 1 and back panels 2 interconnected by horizontal strips 3 which themselves are interconnected by vertical members 5 are mounted to run on inverted T-section runners 18 arranged along the base of a common unit adapted to be rack-mounted between uprights 26. The common unit comprises a front panel 15 and back panel 16 inter-connected by bracing members 17. The sliding drawers are all integral multiples of a common width a; those units of more than single width are provided with suitable slots in their back panels to allow them to slide on the appropriate runners 18 without interference with those in between. The strips 3 and 5 are provided with a large number of holes so that the strips 5 may be given any suitable position desired and also support chassis 7 at any desired height. The strips 5 also support tag strips 13 between which are mounted components 11, 12. The circuits of each drawer are connected to plugs at the rear of the drawer and these communicate with sockets provided at the back of the rack-mounted stands so that the circuits in the separate drawers may intercommunicate both with adjacent drawers and with the circuits in the stands mounted above and below the stand in the rack. In a modification, Fig. 3 (not shown), the drawers are mounted side by side in a larger unit which is itself in the form of a drawer and slides on runners mounted on runners within the framework of the rack. Fig. 2 illustrates the facilities provided for servicing the apparatus mounted in the drawers. A special drawer provided with extension pieces 32 on which the drawer under test may be stood, is arranged in place of the latter drawer in the rack. This drawer comprises at its rear a plug corresponding to that provided on the drawer under test and this communicates by wires 34, 35 with further sockets provided on the front of each drawer. The drawer under test may be plugged into these sockets either the right way up, as shown, or inverted and ready access is thus provided to the components of the drawer while the apparatus is still operative.