Abstract The invention relates to electrical apparatus of substantial size which includes an outer container and a unit insertable in the container which can be readily withdrawn for the purposes of repair or inspection. The insertable unit consists of an oilcooled lower part and an upper control part. The container has an internal shoulder which is engaged by the upper control part of the unit when the unit is inserted in the container. Struts pivotally connected to the lower end of the unit serve to guide the unit during its withdrawal from the container and to serve as support legs for the unit after it is withdrawn. When the unit is in its withdrawn position the struts rest on the internal shoulder of the container. The struts fold under the unit when it is inserted into the container.
Electrical apparatus comprising an upwardly open casing having an internal shoulder, an assembly located within said casing and movable from a position fully inserted in said casing to a position withdrawn from said casing, comprising an oil cooled lower unit and an upper control unit, said upper unit engaging said casing shoulder when said assembly is in its fully inserted position in said casing, internal guide means in said casing, strut means having ends connected to the lower end of said lower unit and having portions thereof engageable with said guide means, said portions of said strut means being engageable with said internal shoulder of said casing when said assembly is in said position withdrawn from said casing.
Claim 2
Dependent Claim
118 words
Electrical apparatus comprising an upwardly open casing having an internal shoulder, an assembly located within said casing and movable from a position fully inserted in said casing to a position withdrawn from said casing, comprising an oil cooled lower unit and an upper control unit, said upper unit engaging said casing shoulder when said assembly is in its fully inserted position in said casing, internal guide means in said casing, strut means having ends connected to the lower end of said lower unit and having portions thereof engageable with said guide means, said portions of said strut means being engageable with said internal shoulder of said casing when said assembly is in said position withdrawn from said casing.
Claim 3
Dependent Claim
32 words
Electrical apparatus according to claim 1 wherein said strut means are pivotally connected to said lower unit and collapse to a horizontal position when said assembly is in its fully inserted position.
Claim 4
Dependent Claim
23 words
Electrical apparatus according to claim 2 wherein said guide means are generally vertically extending rails attached to the internal walls of said casing.