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Miscellaneous Joiner's Tools and Techniques


 
  A Patternmakers' Vise by Donald Ladd, Machinery magazine, September 1901  

The patternmakers' vise shown in Fig. 1, although made over twenty years ago, possesses some advantages deserving attention.

Its main advantage is the quickness with which it can be adjusted to any size of work.

Its mode of operation will be seen by reference to the figure. The jaws A A are made of hard wood, 4 inches by 4-1/2 inches. The iron straps B B are pivoted at their upper ends to the jaws of the vise and are pivoted together at their common center C. Their free ends bear against iron plates L L, set into the sides of the jaws. The action of the straps is to keep the movable jaw at all times parallel with the fixed jaw or post. Both the movable jaw and the post are recessed sufficiently to receive the straps and thus allow the jaws to close together.

The vise screw D is of ash. A square thread at the front end is fitted with a handle nut and is used for short adjustments and for clamping. The back end of the screw is cut with coarse square teeth, with three of which the stop E is engaged when the vise is being used.

This stop E is held into mesh with the teeth by the spiral spring F. When the foot lever G is depressed the wire H draws down the block E and the front jaw of the vise may be pulled out or pushed in at will. This affords the quick adjustment. When the jaws are pulled out a little beyond the required width the block E is released and, rising, engages the teeth of the screw. The work is then clamped by a few turns of the handle of the nut J.

On the face of each jaw is an iron plate, the edges of which are beveled to fit the dovetail on the back of the adjustable jaws. These jaws, shown in Fig. 2, have a grooved or dovetailed back corresponding to the plates on the jaws, and this back supports a jaw face which is pivoted on the pin K so as to allow it to adjust itself to any taper that may be on the work to be held.

One of the jaw plates is beveled on its perpendicular sides while the other is beveled on its top and bottom edge, so that the face of one adjustable Jaw pivots vertically and the other horizontally. This allows the vise to accommodate itself to work of almost any shape that it may be desired to hold.

Donald Ladd
Westfleld, PA


 
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