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Title: |
1904 Article-American Machine & Mfg. Co., Thor Power Hammer |
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Source: |
Iron Age, V74, 03 Nov 1904, pg. 11 |
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Insert Date: |
3/21/2019 5:14:30 PM |
The Thor Power Hammer
A new power hammer has been designed by the American Machine & Mfg. Company, Cleveland, Ohio, which has been given the trade name used in the title. This hammer is composed, as usual, of a frame, an anvil, a hammer head, a lever to which the hammer head is attached by means of a spring and a crank shaft acting on the lever. In the plane of the lever there is supported in the frame a ring of comparatively large diameter, through which the crank shaft passes. To the ring is jointed an arm, which is connected to the crank of the shaft by a yoke, in the slot of which it reciprocates during the rotation of the crank, a journal or sliding block embracing the crank. The arm is oscillated by this movement and is connected to the lever by links. The length of the stroke is adjusted by revolving the ring. By rotating the ring toward the right, the angle formed between the arm and a perpendicular through the shaft will be decreased, the Stroke of the arm, and consequently that of the lever and the hammer head, being thus made smaller. By rotating the ring toward the left the angle mentioned will increase, and the stroke of the arm and hammer head will be greater. By means of the screw and hand wheel at the rear, the operating arm, or lever, is kept horizontal, when changed from small to large work, thereby keeping the full force of the blow in a horizontal plane. The advantage of this construction is that the hammer ascends slowly and descends quickly as the crank at the rotation of the shaft acts on the outer part of the arm when the hammer head ascends, but on the inner part of the arm when the hammer head descends. This construction, it will be seen, gives a belt driven spring power hammer, that during full running affords variable strengths of blow and variable lengths of stroke for different sizes of forgings to be handled. It has an attachment for stopping the drop at the top of stroke in case of die and tool forging. The makers describe it as a practical, easily handled, many sided and durable machine that will forge fast and well, is equally applicable to large or small work and also good for drop forging, is easy to apply and handle, requires but small space and gives a strong blow compared with the power required.
The type Ca. is capable of striking a blow of 801.8 foot-pounds, in consequence of which, it will in many places make a good substitute for a steam hammer. |
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1904 Article-American Machine & Mfg. Co., Thor Power Hammer
1904 Article-American Machine & Mfg. Co., Thor Power Hammer (Specifications)
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