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Bench Vise with Parallel Double Slide: Grimmitt, 1879
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12. octubre 2026NO
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Bench Vise with Parallel Double Slide: Grimmitt, 1879

Thomas Grimmitt of Rockford, Illinois, patented this bench vise in 1879, US 214,907. The fixed jaw is bolted to the bench by a plate formed on its back. The movable jaw is fixed to the open ends of a U-shaped double slide whose arms pass through both jaws, so the two jaws always stay exactly parallel. A screw with a sliding lever handle, swivelled to the slide, works in a nut in the fixed jaw and moves the front jaw both ways. Detachable notched wooden jaws slip over the slide and screw to hold rectangular or round work, and the vise can be fitted on top of the bench for carriage and wagon work or reversed underneath for carpenters' and cabinet-makers' work.
Intermedio
Workshop process

Instrucciones

1

Jaws and plate

Make the inner jaw with a plate formed on its rear side, holed for the bolts that secure it to the bench, and the outer movable jaw of the same general form. Make both jaws double, so the plate can be fixed to the top of the bench or, reversed, to its underside with the lower jaw ends flush with the bench top.

Materiales para este paso:

Mordaza fija con placa de bancoMordaza fija con placa de banco1 pieza
Mordaza móvil de tornillo de bancoMordaza móvil de tornillo de banco1 pieza

Herramientas necesarias:

Taladro de columnaTaladro de columna
Juego de brocasJuego de brocas
Limas (lima de mano)Limas (lima de mano)
2

Double slide

Pass the arms of the U-shaped double slide through holes in both jaws and secure their ends to the outer jaw with nuts, so the outer jaw is always held exactly parallel to the inner one.

Materiales para este paso:

Guía doble en UGuía doble en U1 pieza

Herramientas necesarias:

Llave inglesaLlave inglesa
3

Screw and nut

Pass the screw through a hole in both jaws midway between the slide's arms, swivel its forward end to the slide at the centre of its bend, and slide a lever handle through its outer head. The screw works in a nut set in a cross-notch at the back of the inner jaw, held by a dovetailed plate slid into the notch's sides.

Materiales para este paso:

Husillo de tornillo de banco con palanca deslizanteHusillo de tornillo de banco con palanca deslizante1 pieza
Tuerca de tornillo de banco con placa de cola de milanoTuerca de tornillo de banco con placa de cola de milano1 pieza

Herramientas necesarias:

Limas (lima de mano)Limas (lima de mano)
Llave inglesaLlave inglesa
4

Wooden jaws

Slot the wooden jaws from their lower ends so they slip down over the slide's arms and the screw between the metal jaws. Notch their faces for rectangular or round work, and hold them to the metal jaws with hooks pivoted on the metal jaws' side edges that catch screws or pins on the wooden jaws.

Materiales para este paso:

Mordazas de madera ranuradas desmontablesMordazas de madera ranuradas desmontables1 pieza

Herramientas necesarias:

SerruchoSerrucho
Juego de formonesJuego de formones
Juego de destornilladoresJuego de destornilladores

Materiales

6

Herramientas requeridas

7

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