Fig. 58.
Axle-seats (3), consisting of seat-plate, guard-rail, guard-rail standard, guard-rail catch, guard-rail hinge-pin, guard-rail locking-latch.
Bow-brake (2), [Fig. 59], consisting of shoe-piece (a), bow-springs (4) (b), bow-spring nuts and bolts (4) (c), attachment-socket (d), and the attachment consisting of clevis (e), clevis-bolt and nut (f), locking-lever (g), locking-bolt and nut (h).
Fig. 59.
The attachment-socket has a rectangular longitudinal mortice in which the tang of the clevis is placed. This tang has a slot, the lower part of which ends in a hole having the same diameter as the locking-bolt. The locking-bolt has bearings on each side of the mortice, and the part in the slot has two opposite rectangular grooves. When the bolt is in the hole with these grooves perpendicular to the slot, the clevis is locked; but when turned until the bottoms of the cuts are in prolongation of the slot sides, the tang of the clevis can be drawn out until stopped by the other end of the slot.
The Elevating Device (4), [Fig. 60], consists of frame and double lazy-tongs.
The Frame consists of (2) side-levers (c), pivot-bolt and separator (d), transom-bolt and nuts in rear, (2) eye-bolts, elevating-screw (f), cross-head elevating-screw nut, crank-handle (g).