Year: 1886

page_text: I GEORGE HOPKIN WELLS of 48, Monmouth Street Sheffield in the County of
York Coach Smith do hereby declare the nature of this invention and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement :-
The object of my Invention is to facilitate the working and adjustment of, and so
as to be an improvement in, the Vice Apparatus or contrivance described in the
Specification of Letters Patent granted to William Corteen as dated 10th September
1884 N° 12,235.
In the first named Invention, the moveable jaw depends mostly for the checking
or application of same, upon the under grooves on the slide on which it works as
therein described, and I have found it advisable to modify and alter the construction
of such Vice, in this and in other respects, so as to render the Invention of more
general practical service.
To effect my object, I do as follows :-
Instead of the top and figured portion of the slide part being made narrow, and
so that the moveable jaw rests on the base of such slide (as described in the
Specification before mentioned), I make the top portion of the slide the widest of
all, making the notches and teeth in the centre on the surface of same, and the
lower portion of such slide as resting on the bench or table, is therefore narrower
than the upper portion.
I dispense with any numbering of the various distances on the slide, but as to
the check or catch referred to in the said first named Patent, I make this catch or a
catch for this purpose the substantial support of the moveable jaw, so as to fix it at
any distance as required, and I make slits or recesses forming the teeth as aforesaid
in such upper slide part, so as readily to receive such catch and of a shape suitable
for the purpose required.
I find it advantageous to dispense with any side arms to or against the front
jaw and other parts connected with same, and in lieu of this, I arrange so that the
front jaw works between two solid sides, which thereby prevent any improper
lateral movement.
In lieu of a spiral spring or other contrivance to pull back the front jaw into its
normal position, I insert between the end of the slide (recessed slightly to receive

page_text: same) and the front jaw, a small piece of India-rubber or other like substance,
whereby the front jaw is pushed home or further back according to the
requirement.
Respecting the screw, I find it advantageous to make this of a good width and
strength, and especially to work same through a wider substance or boss, which is
itself inserted through the top part of the outer or stationary portion of the front
jaw, in a hole or space left in such stationary part for the purpose.
The accompanying Drawings illustrate the features of my Invention.
Figure 1 is a plan of the Vice with article being gripped.
Figure 2 is a plan of the screw with the boss or substance receiving such
screw.
Figure 3 is a sectional view from the back of the moveable jaw.
Like letters of reference where such letters appear indicate corresponding parts
in the Drawings.
In Figure 1 the top part of the slide A with the teeth AI cut or formed in the
centre of the face of same, is about an iuch wider than the bottom part of the
slide B, and the moveable jaw C turns as shewn at the point C underneath A, and
works along such top part of the slide as shewn, and the check or catch D being
placed at its point Din any of the teeth spaces, fixes or locks such jaw at any
point required.
E shews the solid sides within which the front jaw moves, the dotted lines F
shewing the general position of the jaw when in application to the extent of the
curved end FI, the point G being the point at which the jaw rests when brought
home or back to its original position, so that when not in operation, such front jaw
leans back as it were to a slight incline, but when at work, grasps the article in
use straight or perpendicularly in connection with the noveable jaw, thereby
obtaining an equal or direct pressure H as shewn.
To effect and ensure the pulling or pushing back of the front jaw, letter I shews
in blacker lines the position of the piece of India-rubber or other like substance
employed for the purpose, and this material works loosely against the front jaw, but
at the other end 1 is placed or secured in a slight recess in the slide end, made for
the purpose, or such recess may be made in the jaw and the positions reversed.
Respecting the screw (as more particularly illustrated in Figure 2) this J operates
against the front jaw and works through the wider substance or boss K as shown,
and this screw portion can at any time be taken out and renewed if required.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed, I declare that what
I claim is
Improvements in form and construction of the Vice described in the said
Specification first herein before mentioned, by making the slide wider at the top and
teeth and slits properly shaped thereon so as to receive a substantial check or catch,
by also altering the width and shape of the jaws especially of the front one with
substantial side parts wherein the same moves, and by also providing India-rubber
or other like spring sul stance to press back the front jaw with also new form of
screw working in a larger substance or boss, whereby, the general principle
originally claimed can by such additions or modifications, be effectually and
practically carried out as above described.
DL:
1000
GEORGE HOPKIN WELLS.