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Title: |
1892 Article-Rowley & Hermance Co., Door & Blind Clamp |
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Source: |
The Mechanical News, V22, 15 Dec 1892, pg. 475 |
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Insert Date: |
12/18/2015 1:39:33 PM |
SINGLE-MOTION DOOR AND BLIND CLAMP.
The original builders of this machine were Messrs. Rowley & Hermance, of Williamsport, Pa., who were also the first to place it upon the market.
They have built and sold over 800 of these machines, and improved it from time to time. It is the strongest and heaviest machine in the market, with improvements for clamping the door or blind straight, making perfect joints on both sides, face and back. It is thoroughly well built, and is sold at as low a price as good work can be furnished. It will clamp more doors or blinds in a given space of time, doing the work perfectly, giving pressure on each side of tenon of each rail, clamping ends as well as sides, and it is said will do better work than any other machine made. It is explained by the cut, operated simply by pressing down one lever with the foot and moving the end screw by hand. The change from one size to another can be made in less than one minute, by moving the back plate forward or backward with hand- wheels fastened to screws that run through width of machine. It will clamp any size up to 4 feet wide by 8 feet long, in one motion, or twice its length in two motions. There are no ratchets to break (as ratchets always will), and no pawls to get out of order. By an improved arrangement of levers the greatest pressure is applied when the joint is nearly closed or where the increased resistance must be overcome. At this point the cross rod passing through the four horizontal bars, rises slightly above the center line, holding the clamp closed until the door is wedged, and to release the door, the treadle is raised slightly with the foot when it will spring open. The manufacturers also make a sash attachment for this machine, which will clamp sash on four sides, perfectly square, in one motion. It can be taken off or put on in five minutes. Further information may be had by addressing the makers, whose address is given above.
US Patent: 99,212
http://www.datamp.org/patents/displayPatent.php?number=99212&typeCode=0 |
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1892 Rowley & Hermance Co., Door & Blind Clamp
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