Improved Attachment for Jaws of Bench Vices.
Year: 1891

page_text: Date of Application, 17th Nov., 1891
Complete Specification Left. 17th Aug.. 1892-Accepted. 17th Sept., 1892
PROVISIONAL SPECIFICATION.
Improved Attachment for Jaws of Bench Vices.
I CURD NUBE of Offenbach on the Main in the German Empire, Mechanist do
hereby declare the nature of this invention to be as follows:--
My present invention consists in forming and mounting clamps on the jaws of
ordinary vices so that they may be rotated in order to allow round bars or pipes to
be inserted not only in a vertical position, but also at any inclination desired allowing
thereby the workman to place the material in the best possible position to be
operated upon no matter what the length of pipe or bar may be.
My said improvements consists further in providing suitable recesses in said
rotatable clamp whereby round bars and tubes of different diameters may be held
firmly between the jaws of the vice without being injured by the same.
Bench-vices hitherto employed in workshops permitted round-iron, tubes and the
like, to be secured only in a vertical position in consequence of which the upper
ends of said iron or tubes when same exceeded two yards in length were entirely
out of the reach of the workman.
It however very often occurs that pipes and the like have to be operated upon at
their extremities exceeding the length above-named by having threads cut thereon.
Clamps in use hitherto did not allow pieces to be held in an inclined position,
therefore the could not be employed in these cases, the usual practice being to grip
the work to be operated upon direct by the vice, the work being generally injured
thereby.
By the employment of my said improved rotatable steel clamp, these defects are
entirely obviated.
The construction of my improved clamp allows the work to be operated upon to
be clamped at any angle and thus places the end of the same within the reach
of the workman.
My said improved clamp may be readily secured to existing vices and thereby a
great saving is effected.
Grooves or recesses are provided in the said rotatable steel clamp and furnished
with teeth or corrugations allowing the diameter of the pieces to be held to vary
from one sixth of an inch to two inches and a half or more the length of the clamp
is sufficient to distribute the necessary pressure over a large surface.
A bench-vice fitted according to my said improvements is illustrated on the
accompanying sheet of drawings in which
Fig. 1 is a side-elevation showing the upper ends of the jaws of an ordinary vice
fitted with my improved adjustable clamp the same being inclined at an angle
of 45°.
Fig. 2 is a front elevation of same looking in the direction of arrow.
Fig. 3 is a plan showing clamp turned in such a position as to allow the vertica
insertion of round-iron tubes and the like.
The device consists of an angular piece of cast iron a steel clamp b and pivot or
bolt c.
The part a is secured to one of the jaws of the vice by any suitable means, the
clamp is fitted thereto by means of the pivot or bolt e in such a manner that it
may rotate on same thereby enabling pieces of round-iron or tubes to be clamped
at any angle, and the said pieces may moreover be of any length desired without
preventing the workman from getting to the end of same.
As already mentioned the side of the clamp 6 facing the opposite jaw is provided
with two or more toothed or corrugated grooves or recesses of semi-circular shape

page_text: or of any other shape to suit that of the work to be operated upon, thereby the
latter is firmly held between the jaws.
It will be obvious that the work may vary in diameter to a considerable extent
as will be seen by reference to dotted lines Fig. 3.
Dated this 16th day of November 1891.
H. F. BOUGHTON, M.I. Mec. E.,
London, Sheffield, and Barnsley, Agent for the Applicant.
COMPLETE SPECIFICATION.
Improved Attachment for Jaws of Bench Vices.
I CURD NUBE of Offenbach on the Main in the German Empire Machinest
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
1.
statement:-
My present invention consists in forming and mounting clamps on the jaws of
ordinary vices so that they may be rotated in order to allow round bars or pipes to
be inserted not only in a vertical position but also at any inclination desired allowing
thereby the workman to place the material in the best possible position in order to
be operated upon no matter what the length of pipe or bar may be.
My said improvements consist further in providing suitable recesses in said rotat-
able clamp whereby round bars and tubes of different diameters may be held firmly
between the jaws of the vice without being injured by the same.
Bench vices hitherto employed in workshops permitted round iron round tubes
and the like to be secured only in a vertical position in consequence of which the
upper ends of said iron or tubes when same exceeded two yards in length where
entirely out of the reach of the workman. It however very often occurs that
round pipes and the like which exceed the length before described have to be
operated upon at their extremities by having threads cut thereon.
Clamps in use hitherto did not allow pieces to be held in an inclined position
therefore they could not be employed in the cases referred to the usual practice
being to grip the work to be operated upon direct by the vice the work generally
being impaired thereby. By the employment of my said improved rotatable steel
clamp the defects before set forth are entirely obviated.
The construction of my improved clamp allows the round article bar or tube to
be operated upon to be clamped at any angle and thus places the end of same
within the reach of the workman. And my clamp my be readily secured to existing
vices and thereby a great saving effected.
Grooves or recesses are provided in my rotatable steel clamp and furnished with
teeth or corrugations allowing the diameter of the pieces to be held to vary from
one sixth of an inch to two inches and a half or more and the length of the clamp
is sufficient to distribute the necessary pressure over a large surface.
A bench vice fitted according to my said improvements is illustrated on the sheet
of drawings left with my Provisional Specification which I now refer to in the
following description.
Fig. 1. is a side elevation showing the upper ends of the jaws of an ordinary vice
fitted with my improved adjustable clamp the latter being inclined to an angle
of 45°.
Fig. 2. is a front elevation of same looking in the direction of arrow.
Fig. 3. is a plan showing clamp turned in such a position as to allow the vertical
insertion of round iron or round tubes and the like.
My said improved device consists of an angular piece of cast iron a a steel clamp b
and a pivot or bolt c. The part a is secured to one of the jaws of the vice by any
suitable means. The clamp is fitted thereto by means of the said pivot or bolt c
and in such a manner that it may rotate on same when required thereby enabling
pieces of round iron or round tubes to be clamped at any angle and the said pieces

page_text: may moreover be of any length desired without preventing the workman easily
reaching the end of same. As already mentioned the side of the clamp facing
the opposite jaw provided with two or more toothed or corrugated grooves or
recesses of semicircular shape or of any other shape to suit that of the work to
be operated upon thereby the latter is firmly held between the jaws. It will also
be obvious that the piece to be worked may vary in diameter to a considerable
extent as will be seen by reference to the dotted lines at Fig. 3.
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
1. A vice having a jaw provided with a rotatable steel clamp for holding round
bars or round pipes of different length and diameter at any inclination substantially
as described and illustrated in the drawings left with the Provisional Specification.
2. In a vice the combination with the angular cast iron piece a of the rotatable
steel clamp band the pivot or bolt c substantially as shown in said drawings and
used for the purpose specified.
3. In a vice the use of a rotatable steel clamp 6 provided with toothed or
corrugated grooves or recesses substantially as described and used for the purpose
set forth.
Dated this 15th dow of Aust 1802
H. F. BOUGHTON, M.I. Mech. E.,
16, Commercial Street, Sheffield, Agent.