Abstract: Apparatus for adjustably attaching roof panels to the side walls of an enclosure and for securing the pitch of the roof panel with respect to the side walls after it has been established is disclosed. The apparatus includes a header support member which is placed on top of the side wall and has a longitudinally extending pocket therein. A header arm having a longitudinally extending yoke at one end thereof is received in the longitudinally extending pocket in the header support member. After the roof pitch has been established by rotating the yoke portion of the header arm within the pocket in the header support member, the header arm is fastened to the header support member to secure the roof pitch.

Abstract: A breakaway utility pole structure having a tubular base (11) anchored in the ground substantially at ground level and adapted to telescopically secure the bottom end portion of a pole (9), the base (11) having a circumferential shear groove (20) adjacent to its bottom end, and the base being secured in the base by adhesive material (12) and by bolts (21) spaced above the shear groove (20), the shear groove is adapted to cause failure of the base when the pole is subjected to horizontal impact at a predetermined distance above ground level from a vehicle of predetermined weight moving horizontally at a predetermined minimum speed.

Abstract: In a motor vehicle gear drive a transmission block as well as a back-gear stage (7, 32), a power take-off stage (10,11) and a differential gear (39,41) for an axle drive (44) are all arranged in a common housing (20). The whole transmission is directly couplable to a driving engine (1) by way of a clutch (3). Engines with differing r.p.ms and outputs can be reduced to the same r.p.m. by means of the back-gear stage (7,32). The power take-off stage (10,11) arranged on the layshaft (6) of the back-gear stage (7,32) and having a coupling device (9) drives a reduction gear (14), at which the drive pinion shaft (15) and the output gear shaft (16,17) are led outside the housing of the reduction gear (14). In this way these shafts (15; 16,17) rotating at different r.p.m. can drive different working devices, which can be driven whether the vehicle is travelling or stationary by virtue of the controllable power take-off (10,11).