Improved Clamp or Vice.
Year: 1890

page_text: Date of Application, 12th May, 1890
Complete Specification Left. 12th Feb., 1891-Accepted, 14th Mar.. 1891
PROVISIONAL SPECIFICATION.
Improved Clamp or Vice.
Communicated from abroad by J. H. ZIEGLER, of Bissingen, Germany.
I, CHRISTEN REES BONNE, of 41, Eastcheap, in the City of London, Registered
Patent Agent, do hereby declare the nature of this invention to be as follows:
The annexed drawing represents the apparatus in side elevation.
The jaws A, B, are preferably of T shape in cross section, with rectangular ends,
through which the bar C is passed, being firmly fixed to jaw A, but movable in B,
the opening in which is large enough to allow the jaw B to slide to and fro upon
the said bar. The opening, and closing of the jaws A, B, is effected by simply
sliding the jaw B in either direction along bar C, which has a stop or projection D
at its extremity to prevent the part B falling off. The screw spindle E, passing
through sleeve or opening, at end of jaw B, is turned by means of the handle F
until it presses tightly against the surface of the article to be clamped or held in
place, the jaw A pressing upon the opposite surface.
The opening in part B is large enough to allow some play to part C, on which it
slides, but when screwed up the surfaces at F are brought tightly together.
1 1040
Improved Clamp or Vice.
Communicated from abroad by J. H. ZIEGLER, of Bissingen, Germany.
1, CHRISTEN REES BONNE, of 41, Eastcheap, in the County of London,
Registered Patent Agent, do hereby declare the nature of this invention, and in
what manner the same is to be perforined, to be particularly described and ascertained
in and by the following statement :-
This invention consists in an improved clamp or vice, the construction of which
will be readily understood upon reference to the accompanying sheet of drawings,
in which Fig. 1 represents a side elevation of the clamp or vice.
The jaw A is cast or formed in one with the bar or piece B at right angles
thereto, or the part B may if preferred be made separately and firmly secured to
the jaw A.
The opposite jaw C is provided with an opening to admit of its sliding to and
fro upon the bar B.
D is a screwed spindle operated by the handle E by means of which the jaw C'is
worked up against the material or article to be held in position by the clamp
or vice.
The jaw C then presses with sufficient force upon the material or article to hold
the same firmly between the jaws A and C.
The jaws A and C may be of any suitable form in section, but are preferably
made with a broad and flat surface on the inner sides facing the materials to be held,
so as to give a better grip thereon.
The bar or piece B, whether made separately or in one with the jaw A as above
mentioned, is preferably of rectangular cross section.
The hole or opening in the jaw C, through which the part B passes is made of
somewhat larger dimensions than the said part B, so as to give a slight clearance
between same, as indicated by the dotted lines. This is essential to the effective

page_text: action of the clamp, as when the spindle D is screwed
tightly against the object
within the clamp, it causes the jaw C at point marked C₁ to be pressed very tightly
against the edge of the bar B, and thus all risk of the jaw C slipping back or
releasing its grip is prevented. F is a stud or projection on the bar B, to prevent
the movable jaw C slipping off.
Having now particularly described the nature of the said invention, and in what
manner the same is to be performed, I declare that what I claim is :-
In a clamp or vice, the fixed jaw A with movable jaw C and bar B, operated by
screwed spindle D, substantially as herein before described.
Dad 100 1
100
C. R. BONNE & Co.,
Registered Patent Agents, 41, Eastcheap, London, E.C.,
Agents for the Applicant.