. Electric railway journal . DETAIL OF NEW PIPEWRENCH LaRock Wrench, and it is quite simple in constructionsince it contains only three parts, with no screws,springs, pins or ratchet, the absence of which makesadjustment unnecessary, and the jaws in the wrenchare always in a position to do pipe work. Hand Brake and Slack Adjuster The Home double-acting hand brake, which the LordManufacturing Company recently put on the market andwhich was described on page 574 of the Electric Rail-way Journal for March 18, 1916, has been further im-. HORNE DOUBLE-ACTING HAND BRAKE AND SLACK ADJUSTER proved by
. Electric railway journal . DETAIL OF NEW PIPEWRENCH LaRock Wrench, and it is quite simple in constructionsince it contains only three parts, with no screws,springs, pins or ratchet, the absence of which makesadjustment unnecessary, and the jaws in the wrenchare always in a position to do pipe work. Hand Brake and Slack Adjuster The Home double-acting hand brake, which the LordManufacturing Company recently put on the market andwhich was described on page 574 of the Electric Rail-way Journal for March 18, 1916, has been further im-. HORNE DOUBLE-ACTING HAND BRAKE AND SLACK ADJUSTER proved by the addition of a slack adjuster. This newdevice, which is shown in detail at the right in the ac-companying drawing, is placed at the position markedA in the assembly drawing of the brake which is repro- duced at the left from the above-mentioned article. Theadjusting pawl is attached to a spring which is of suffi-cient strength to overcome any slacking of the chain. On releasing the brake, the toothed wheel which isattached to the drum moves clockwise owing to the re-leased energy which was stored up by braking. Theforce of the spring in the pawl is overcome and thepawl is pushed away from the toothed wheel. As thebrake rigging loses its stored energy and the toothedwheel slows up partly due to the friction of the pawlagainst the wheel, the pawl engages the wheel, causingthe release of only sufficient chain to bring the brake-shoes clear of the wheels. As additional slack occurs,due to wear, the pawl automatically checks th
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkmcgrawhillp
