Patent GB-800352-A (GB)
Title: Improvements in or relating to mounting arrangements for electrical equipment
Inventor: CORNELL WALTER
IPC: H05K7/16
Filed: 1955-07-07
Abstract: 800,352. Assemblies of electrical apparatus. GENERAL ELECTRIC CO., Ltd. June 20, 1956 [July 7, 1955], No. 19687/55. Class 37. [Also in Group XXV] A mounting arrangement for electrical equipment comprises a housing containing a plurality of compartments arranged in tiers one above the other, each compartment accommodating a framework or base member upon which a plurality of vertical panels carrying electrical components are pivoted vertically whereby at least limited access can be had to both sides of each panel and each framework being at least partially removable from its compartment to permit greater access to the panels carried thereby. Fig. 1 shows a plan view of one compartment housing a plurality of vertical panels 9 carrying the components of the equipment, the panels 9 being supported by a base 10 in the form of a shallow rectangular tray to which the panels 9 are secured by hinge pieces 12 hinged to both the panels 9 and the base 10, provision being made whereby the panels 9 may be readily detached from the pieces 12 (see Group XXV). Mounted within the base 10 are terminal boards to which leads from the panels 9 are taken through apertures 21 in the base. Further sets of leads also interconnect the terminal boards and sockets 25 which are mounted on the handles 27 used for lifting the complete assembly comprising panels 9 and base 10 when it is being removed from or inserted into its compartment in the housing. Each socket 25 communicates with a socket 5 by means of a plug 30 which engages both sockets. The sockets 5 lead through to vertical " chimneys " 4 which extend the whole height of the housing and house the cables providing the power supplies and interconnecting the equipment in the various compartments. Corner pieces 43 and flat plates 44 forming part of the exterior of the housing are removable to permit access to the chimneys 4. In order to assist in locating the assembly within its compartment the base 10 is provided on its underside with a roller 23 which engages with wooden guide members 22 arranged on the floor of the compartment. A thin insulating sheet is arranged between each panel 9 in order to insulate the panels from each other and also to provide a degree of protection for a person servicing the equipment while it is still switched on. A further sheet 26 supported by a hinge member 13 covers the exposed surface of the end panel. The handles 27 are provided with a locking mechanism (see Group XXV) whereby they are normally locked so as to be unable to rotate about their pivots 28 when the assembly is withdrawn from its compartment; when, however, the assembly is inserted in the compartment, the handles engage stops 41 which effect the release of the locking mechanism so that the handles may be rotated to engage spigots 45 in locating holes in the walls of the chimneys 4. The panels 9 may be constructed as described in Specification 774,978; however, in the preferred embodiment, the metal cross-pieces described in the prior Specification are replaced by insulating members, Fig. 2 (not shown).