Improvements in the Method of Closing Bench Vices.
Year: 1891

page_text: Date of Application, 27th Feb., 1891
Complete Specification Left, 27th Nov., 1891-Accepted. 2nd Jan.. 1892
PROVISIONAL SPECIFICATION.
Improvements in the Method of Closing Bench Vices.
I LOUIS ROTTENBURG of Holmhurst, Dowanhill Gardens, Glasgow, Apprentice
Electrician do hereby declare the nature of this invention to be as follows :-
This invention relates to improvements in the method of closing bench vices, and
has for its object to work the same by the foot instead of by the hand as is the
present custom.
The invention consists of a parallel vice with a joint toggle-lever working
underneath the bench which is actuated by means of a cam attached to a swinging
lever or rod operated upon by the foot.
In order to compensate for the small range of the toggle and cam, 1 provide
small teeth on the sliding bar as well as several small teeth on one end of the
toggle.
Dated this 25th day of February 1891
BOTTOMLEY & LIDDLE,
154, St. Vincent Street, Glasgow, Applicant's Agents.
COMPLETE SPECIFICATION.
Improvements in the Method of Closing Bench Vices.
I, LOUIS ROTTENBURG of Holmhurst, Dowanhill Gardens, Glasgow, Apprentice
Electrician 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 the method of closing bench vices, and
has for its object to work the same by the foot instead of by the hand as is the
present custom.
The invention consists of a parallel vice, with a joint toggle lever working
underneath the bench which is actuated by means of a cam attached to a swinging
lever or rod operated upon by the foot.
In order to compensate for the small range of the toggle and cam I provide small
teeth on the sliding bar as well as several small teeth on one end of the toggle.
In order that my invention may be properly understood and readily carried into
effect I have hereunto appended an explanatory sheet of drawings in the several
figures of which corresponding parts are marked with the same letters of
reference.
Figure 1 is an elevation partly in section of the vice when not operated on by the
closing arrangement.
Figure 2 represents the vice, with the closing arrangement brought into action.
A and B are the two jaws of the vice, A being the movable one, and B the fixed
one. The fixed jaw B has two checks C, one on each side which are connected
together by the metal piece D. E is a sledge having teeth on its upper face which
are caused to act on the teeth on the underside of the movable jaw for the purpose
of closing the rice tightly, as will be more fully described. The sledge is shown
enlarged in Figures 3, 4, and 5; Figure 3 being a side elevation, Figure 4 an end
elevation, and Figure 5 a plan. The teeth are shown at e, and on the sides of the
sledge there are four lugs e', e, es, e, which rest on two rails es, e, one rail being
fixed on each of the cheeks C. In Figure 1 the lugs are resting in hollows
In the rails, and the teeth in the sledge are not engaged with the teeth in the
underside of the jaw A, and the jaw A is free to be pulled out.
[Price Bd1

page_text: In order to make the vice grip any object firmly between its claws, I employ the
joint-toggle lever G H, actuated by the cam I attached to the lever J which is
pivoted at j. The toggle lever G H consists of two metal pieces G, and H. Both
ends of G are semi-cylindrical; one end working in the hook d¹ in the connecting
piece D, while the other end g2 works in the hollowed end of the metal piece H.
The other end of H works in the hook of the sledge E. The pivoted lever J
can be worked by the foot-step or the handle. When the lower end of the
lever J is pushed in the direction of the arrow, the ends g² and 2 of G and Hare
moved up, and the end pushes the sledge E along the rails. The first effect of
this motion is to raise the lugs el, 2, 3, e out of the hollows in the rails and to
bring the teeth of the sledge into action with the teeth of the underside of the jaw A.
By continuing to push the lower end of J in the direction of the arrow the
jaw A is pressed closer towards B, and thus any object between the jaws is firmly
clamped.
The spring K one end of which is connected to the sledge E, and the other to
the check C serves to draw the sledge E against the end ¹ of H, and keeps the
pieces G and H in contact with one another, and also presses the lugs e¹, e², e³, et,
into the recesses when in the position shown in Figure 1.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :--
The arrangement for closing bench vices consisting of the joint toggle actuated
by the foot-lever J, and acting on the sledge E so as to cause the teeth of the
sledge to engage with the teeth on the underside of the movable jaw and press this
aw towards the fixed one, substantially as described.
Dated this 26th day of November 1891.
BOTTOMLEY & LIDDLE,
154, St. Vincent Street, Glasgow, Applicant's Agents.