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Title: |
1857 Image-C. H. Dennison, Rotary Bed Planing Machine |
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Source: |
Transactions of the American Institute of the City of New York 1857 pg 120 |
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Insert Date: |
3/26/2011 3:18:30 PM |
This machine is constructed with an iron evolving bed, and polished on the upper side, raised to a proper elevation on an iron frame, and with two sets of horizoltal cutters lying directly above the bed, one on each side, and two feed rollers, one fluted and the other smooth, attached to each set of cutters; the rollers and cutters are raised or lowered by a simple gearing on each side below the bed; the rollers revolve the same way as the bed, and on this account the two sections are fed from opposite sides of the machine.
The advantages claimed for this style of machine are;
1st. The bed revolving with the rollers the lumber is carried through the machine with a great reduction of friction in comparison with those machines with stationary bed, and consequently there is a great saving of power.
2d. This planer is admirably adapted to working stout stuff for boxes and panels, curved and crooked stuff for chairs and for carriage makers' use, &c., and at the same time works equally well in long stuff; it is supplied with pressure bars placed between the feed rollers and edge cutters, prevents the tearing upon any kind or quality of lumber.
3d. The machine being fed from both sides, the two men commonly needed to run a planer can run through two boards or pieces at the same time; and as the gearing of each side is entirely separate, the planing may be of different quality and thickness.
4th. The machine is adapted to the finest kind of work, on which it leaves an excellent finish. It will plain any kind of stuff one-eighth of an inch thick up to four and a half inches, perfectly smooth, or any length from three inches upwards.
This planer is remarkable for its simplicity of construction, convenience of adjustment, strength and durability, and not liable to get out of repair. A gold medal having been before awarded. Dipolma. Patent # 14,228. |
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1857 C. H. Dennison, Rotary Bed Planing Machine
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