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Title: |
1884 Article-Diamond Machine Co., Improved Lever & Feed-Screw Lathe |
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Source: |
American Engineer, V8, Jul 1884, pg. 16 |
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Insert Date: |
3/25/2017 10:35:25 PM |
Improved Lever and Screw Feed Lathe
The lathe shown is claimed to have as an improvement, the lever arranged to use without disconnecting the screw and wheel and to have the prompt use of either lever or screw is oftentimes a very desirable feature with any user of such tools.
In figure 2 two spindles are shown, the larger or outer spindle having a rack cut on its surface into which is a section of gear, operated and moved by the lever which enters a latch cut for it, when in use both spindles are then operated as a lever lathe. The screw nut being in the smaller spindle travels with the outer spindle when used as stated. To use the screw or inner spindle the handle nut nearest the wheel is brought down firmly drawing the tail stock casting securely around and clamping the outer spindle (which the lever moves) leaving the smaller or inner spindle into which nut and screw operates free to use as an ordinary screw feed lathe. When the lever is not in use it can be swung over on a pivot to the back of machine as shown in figure 3.
The sketches of figures 1, 2 and 3 show clearly the different operations of the lever. It is applied to any lathe manufactured by this Company, and their lathes are also furnished without lever attachment, mounted on iron stand with driving shaft under as shown in figure 4, or counter shaft overhead. Both the driving shaft shown or counter shaft used has Hadley's patent belt shifter device for shifting the belt, this arrangement prevents the belt from slipping on or off its place.
A swinging tool box of japaned heavy tin held in a cast iron frame is attached to each stand, which can be swung out, or under the table when not in use. Their lathes are a new pattern 10, 13 and 16 inch swing any length of bed, with or without stand, on legs if wanted. They have bronze boxes fitted as in any first class engine lathe.
The Company also make a new pattern of slide rest for their own and other lathes.
The weight of lathe shown with stand is about four hundred pounds and is manufactured by the Diamond Emery Wheel and Machine Co., of Providence, R. I. Application to this office or to their Western office at 50 & 52 South Canal street, Chicago, Ill., will secure further information.
US Patent: 314,574
http://www.datamp.org/patents/displayPatent.php?number=314574&typeCode=0 |
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1884 Diamond Machine Co., Improved Lever & Feed-Screw Lathe
1884 Diamond Machine Co., Improved Lever & Feed-Screw Lathe
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