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Title: |
1885 Article-W. P. Duncan & Co., Power Hammer |
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Source: |
American Engineer, V10, 29 Oct 1885, pg. 174 |
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Insert Date: |
3/27/2019 7:51:00 PM |
THE "VULCAN" CUSHIONED P0WER HAMMER,
This hammer, the construction of which is well shown in the illustration, is built on the "dead stroke" principle.
The helve is connected to the crank shaft by an adjustable connecting rod, the length of which can be varied to suit the requirements of different work. The main frame is shown in two pieces bolted together. The ram moves in fixed guides so that each blow is square and in the same place.
The helve is a solid forging of material best adapted for the purpose, and the force of the blow is under the control of the operator by means of the treadle.
The essential novelty in the construction of this machine consists in the arrangement of the rubber cushions which permits of a direct connection of the helve to ram at one end and to crank shaft at the other.
As shown in the small cut, the cushions A are four in number enclosed in the housing C, two on either side placed above and below the crosshead or fulcrum pin B. The rocker D is mounted on the crosshead B at its lower part, the helve being pivoted to it at the top, and the service of this rocker is to permit a vertical movement of the ram.
As will be seen the helve is in fact mounted on an elastic fulcrum, differing in this respect from the usual construction, in which the helve moves on fixed pivots and is driven up and down by rubber buffers. The ram is counterweighted so that it stops open; an automatic brake stops the hammer quickly when the treadle is released.
There are no steel springs to break, and the construction throughout is simple, the whole machine being made of iron and steel, well proportioned. The anvil is heavy enough to receive the force of the blow, thus avoiding expensive foundations.
Full particulars in regard to the working capacity, etc., etc., will be cheerfully given on application to the manufacturers, Messrs. W. P. Duncan & Co., Bellefonte, Pa. |
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1885 W. P. Duncan & Co., Power Hammer
1885 W. P. Duncan & Co., Power Hammer (Cushioning Springs)
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