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Title: |
1895 Article-Egan Co., Spoke Wood-Turning Lathe |
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Source: |
Modern Mechanism 1895 pg 470 |
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Insert Date: |
6/21/2011 1:01:04 PM |
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An automatic spoke-lathe brought out by the Egan Co., and shown in Fig. 2, combines the principal features of the Blanchard lathe with new ones. The bed or frame is wider than is usual, and the " V" is placed some distance back of the center line of the cutter-head, allowing the belt to press the front of the carriage down to the “V" as it travels along. The construction of the bed is such that chips arc not liable to accumulate on the top to obstruct the rollers. There is a sliding-carriage having four rollers, with their journals held in position by collars on the outside; the carriage has adjustable gibs to the main frame, to prevent side play. The standards carrying the cutter-head are bolted to the carriage on planed surfaces. The head has a combination of hook and gouge knives. The vibrating frame is cast hollow, and is connected at the top by hydraulic pipe, to give strength and lightness. There are adjustable trunnion-boxes to change the size of the spoke. The gearing is cut from the solid, and the center gear has double width of face, to permit the operator to change the shape of the spoke. The back center gearing is so constructed that various lengths of spoke may be turned from one pattern. An improvement recently added is for automatically lifting into the cut the frame carrying the spoke, so that all the operator has to do is to remove the finished spoke and put in the stick for a new one—not even leaving his position, but merely pulling a lever, which sets the vibrating-frame into the cut; then the carriage, with the cutter-heads attached, travels along the bed, completing the spoke, the vibrating frame throws forward, and the carriage and head return to the starting-point to cut another spoke. This is, of course, much more convenient than lifting the frame into the cut every time a spoke is turned. One of these lathes has a record, made in a spoke-factory in Mississippi, of 2,095 spokes per day of 10 hours, which is claimed to be the greatest record ever made on a spoke-lathe. The average capacity claimed for the new lathe is 2,200 to 2,400 per day—more than double the ordinary capacity of such machines. |
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1895 Egan Co., Spoke Wood-Turning Lathe
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