Improvements in Bench Vices.
Year: 1890

page_text: Date of Application, 29th Mar., 1890
Complete Specification Left, 29th Jan., 1891-Accepted, 7th Mar., 1891
PROVISIONAL SPECIFICATION.
Improvements in Bench Vices.
We, DANIEL BATEMAN and RICHARD SELLERS, of the firm of Bateman &
Sellers, of 3, Albion Court, Bradford, in the County of York, Machine Makers,
do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in that class of vices commonly called
instantaneous grip vices, and its particular object is to provide a more simple and
reliable method of disconnecting and connecting the movable jaw with the screw.
The said improvements consist of the arrangements hereinafter described in
which the screw normally engages the nut but may be readily disengaged therefrom
for the purpose of rapidly adjusting the movable jaw, and the improvements further
consist in the particular arrangement for regulating the angle of the jaws to each
other so as to enable them to firmly grip taper objects between them.
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For this purpose I employ a half nut rigidly attached to the fixed jaw or a
connection thereof and preferably cut with a "buttress type of screw thread.
Said nut is preferably fixed below the screw and said screw is so mounted and
arranged that it may be lifted to disengage it from the nut and allow the movable
jaw to be rapidly adjusted. The face on the movable jaw against which the
shoulder of the screw bears may be more or less inclined towards the said nut and
It is obvious that
thus tend when in operation to press the screw against the nut.
by arranging a spring to normally keep the screw engaged with its nut it may be
so arranged that pressing it downwards or to one side disengages it. A spiral
spring may be placed on the rear end of the screw to prevent back lash.
To regulate the angle of the jaws and adapt them to uniformly grip taper objects
we form the guide in the fixed jaw wider at the front so that the slide of the
movable jaw is free to move to either side. And an adjustable guide which may be
formed with or attached to said nut is provided on a projection at the front to
engage the lower edges and underside of said slide.
By this arrangement the construction is simplified, little fitting is required and
an exceptionally long bearing is provided for the slide of the movable jaw, besides
enabling the angle of the jaws to be regulated by means of said adjustable guide.
Dated this 28th day of March 1890.
DRACUT & NOWELL,
Bradford, Agents.
COMPLETE SPECIFICATION.
Improvements in Bench Vices.
We, DANIEL BATEMAN and RICHARD SELLERS, of the firm of Bateman &
Sellers, of 3, Albion Court, Bradford, in the County of York, Machine Makers, 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:―
This invention relates to improvements in that class of vices commonly called
"instantaneous grip" vices, and its particular object is to provide a more simple
and convenient method of disconnecting and connecting the movable jaw with the
screw.
The said improvements consist of the arrangement hereinafter fully described in
which the screw normally engages the nut but may be readily disengaged therefrom
for the purpose of rapidly adjusting the movable jaw by simply lifting the front

page_text: end of the screw, and the improvements further consist in the particular arrange..
ment for regulating the angle of the sliding jaw in relation to the back jaw so as
to enable taper objects to be more firmly held between them.
Reference is to be had to the accompanying sheet of drawings forming a part of
this Specification in which similar letters of reference indicate corresponding parts
in each of the figures.
Figure 1, is a longitudinal sectional elevation of a vice constructed in accordance
with our improvements. Figure 2, is a sectional plan immediately above the screw,
and Figure 3, is a section of a portion of the screw.
Figure 4, is a plan view of a vice provided with our improved arrangement for
allowing the jaws to be placed at an angle to each other, in which figure the fixed
jaw is omitted to disclose a section of the taper guide beneath. Figure 5, is a plan
view of such vice with the sliding jaw and screw removed. Figure 6, is a side
elevation of the same, and Figure 7 is a sectional elevation on the broken line a, b
of the former figure with a section of the slide and screw in position.
In Figures 1 and 2 the half nut A is rigidly secured to the base plate B of the
fixed jaw C. The screw D lying in the hollow slide E of the sliding jaw F is
loosely mounted at the rear end in the hole G formed in the end of said slide and
the front end of the screw passes through the vertical slot H at the opposite end of
such slide. By this arrangement the screw D is supported at the back in the
hole G but in front simply rests in the nut A so that to disengage it from said nut
to adjust the sliding jaw it is only necessary to lift the front end of the screw until
its thread clears the nut. The collar K of the screw D bears against the face L
of the slot H and a spring M introduced between the nuts N on the rear of the
screw and the end of the slide takes up any back-lash and keeps the collar K
against the face L of the slot H. The front faces of the sides L of the slot may
be slightly inclined as indicated by the broken line Figure 1 for the purpose of
keeping the screw from rising out of the nut when pressure is applied but we find
that undercutting the thread of the screw a little as shown in Figure 3 answers this
purpose.
In Figures 4, 5, 6 and 7, the guide O beneath the fixed jaw is made wider at the
front so that the slide of the movable jaw is free to move to either side as indicated
by the broken lines Figure 4. And a front guide P projecting from the nut engages
the lower edge of the slide. A lip Q attached to the rear of the nut engages the
side R of a hole or depression in the bottom of the guide O. The nut and front
guides are held stationary when the jaws are required to be parallel by the thumb
screw S passing through the slot T and such slot allows said nut and guide to move
to either side when the screw S is loosened.
Having now particularly described and ascertained the nature of our said inven
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1. In a vice, mounting or arranging the screw so that it is capable of being
disengaged by hand from the nut, substantially as herein shown and described and
for the purpose specified.
2. The construction and arrangement adapting the angle of the sliding jaw to be
adjusted, substantially as herein shown and described and illustrated in the
accompanying drawings.
Dated this 27th day of January 1891
DRACUP & NOWELL,
Bradford, Agents.