IMPROVEMENTS IN TUBE VICES
Year: 1885

page_text: TRUVIDIONAL
DIECIFICATION,
WILLIAM DEVOLL, Melbourne Villa Sutton Road, Erdington, near Birmingham
in the County of Warwick, Engineer, and OLIVER HOWL Woodsetton in the County
of Stafford, Engineer, do hereby declare the nature of our said invention for
IMPROVEMENTS IN TUBE VICES to be as follows:-
The object of this Invention is to provide a Tube Vice, with a loose steel bottom
jaw, or grip, for the purpose of holding more firmly tubes, or other articles, and
also to form the said bottom jaw, or grip, with teeth of the same kind and pitch as
in the top jaw with two slots or recesses, in such a manner as to allow the top
jaw to descend into the bottom jaw, for the purpose of holding small tubes as
conveniently and firmly as large ones.
For this purpose we form a Tube Vice of the ordinary shape and configuration,
having a steel top jaw which is moved upwards and downwards by means of the
screw, to which it is connected loosely in the ordinary manner.
In the lower part of the body or frame and immediately under the top jaw, I place
a loose bottom jaw having two slots, or recesses to receive the top jaw when it is
required to hold small tubes.
I prefer to form that part of the frame which forms a bearing for the bottom
jaw at an angle of 90 degrees, I also form the bearing portion of the bottom jaw
of the same angle by which means, the bottom jaw is self centred with the top
jaw, when dropped into its place in the frame, and does not require any adjusting.
1 L 1
100%
WILLIAM DEVOLL.
OLIVER HOWL

page_text: WILLIAM DEVOLL, Melbourne Villa, Sutton Road, Erdington, near Birmingham
in the County of Warwick, Engineer, and OLIVER HOWL, Woodsetton, in the
County of Stafford, Engineer, we do hereby declare the nature of our said invention
for IMPROVEMENTS IN TUBE VICES, 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 this Invention, is to provide a Tube Vice, with a loose steel bottom
jaw, or, grip, for the purpose of holding more firmly tubes, or other articles, and
also to form the said bottom jaw, or grip with teeth of the same kind and pitch as
in the top jaw, with two slots, or recesses, in such a manner as to allow the top
jaw to descend into the bottom jaw, for the purpose of holding small tubes, as
conveniently and firmly as large ones.
For this purpose we form a Tube Vice, of the ordinary shape and configuration
as shewn at A, and A¹, on the accompanying Drawings, having a steel top jaw B
which is moved upwards and downwards by means of the screw C, to which it is
connected loosely in the ordinary manner, as shewn at D in sectional elevations.
In the lower part of the body or frame A¹, and immediately under the top jaw B,
we place a loose bottom jaw E, having two slots F. F., or recesses to receive the top
jaw B, when it is required to hold small tubes. We prefer to form that part of the
frame A', which forms a bearing for the bottom jaw at an angle of 90 degrees, as
shewn at G. G. side elevation. We also form the bearing portion of the bottom
jaw E, of the same angle, by which means the bottom jaw is self centred with the
top jaw, when it is dropped into its place in the frame A¹ and does not require
any adjusting.
Referring to the Drawings
Fig 1 is a side elevation, shewing the top and bottom jaws in position holding a
large tube H,
Fig 2 is an end elevation of the same.
Fig 3 is a sectional elevation shewing the slots, or recesses F. F. in the bottom
jaw E, for admitting the top jaw B, when screwed down to hold small tubes, as
herein before described and as shewn in sectional elevation Fig 4.
Fig 5 is a plan, Fig 6 is a sectional plan through line J. K, also shewing the
slots or recesses F. F. in the bottom jaw E.
The action is as follows:
If a tube be placed in the Vice between the two jaws B, and E, as shewn at
Fig 1, it will rest on the teeth of the bottom jaw, and if the top jaw be now
screwed down by means of the screw C, until the teeth grip the tube, it will be
held more firmly between the teeth of the two jaws, than is possible in the
ordinary Tabe Vice without a bottom jaw, also if a small tube be placed between
the jaws, the top jaw may be screwed down until it enters the recesses of the
bottom jaw sufficient to grip the smallest tube in the manner shewn at sectional
elevation Fig 4.

page_text: We prefer to make the bottom jaw of steel and in one piece, so that when the
teeth are worn off, the jaw may be lifted out of the frame, and a new one put in,
the angle shape of the bearing part will cause the new jaw to centre itself with the
top jaw, without any fitting as hereinbefore described.
Having now particularly described and ascertained the nature of our said
Invention and in what manner the same is to be performed, we declare that what
we claim is
1. The fitting of Vices (used for the purpose of holding tubes) with an inde-
pendent, or loose bottom jaw, having teeth as the top jaw, and having an angle
shaped bearing surface E. E. having in its centre two slots, or recesses F. F., for
the purpose of receiving the top jaw when holding small tubes, the said bottom
jaw being formed in one piece, having the action substantially as hereinbefore
described and as shewn on the accompanying Drawings.
WILLIAM DEVOLL
OLIVER HOWL.