IMPROVEMENTS IN. THE MANUFACTURE OF PARALLEL VICES
Year: 1862

page_text: LETTERS PATENT to Peter Wright, of Dudley, in the County of Worcester;
Manufacturer, for the Invention of "IMPROVEMENTS IN. THE MANUFACTURE
OF PARALLEL VICES."
Sealed the 9th December 1862, and dated the 25th September 1862.
PROVISIONAL SPECIFICATION left by the said Peter Wright at the
Office of the Commissioners of Patents, with his Petition, on the 25th
September 1862.
I, PETER WRIGHT, of Dudley, in the County of Worcester, Manufacturer,.
do hereby declare the nature of the said Invention for "IMPROVEMENTS IN
THE MANUFACTURE OF PARALLEL VICES," to be as follows, that is to say) :-
This Invention consists in making parallel vices in the following manner :--
I first construct a slide box or receptacle for the slide to work in; this may
be made of either cast or wrought iron, and receives a slide bar,, the section of.
which is similar to that of a piece of T-iron; I then forge or stamp out the,
two parts intended to form the jaws, one of which is fixed securely on the slide
box and remains stationary upon it; this jaw is slotted in its lower part to
allow the slide bar to pass through it. The other jaw is also similarly slotted,
but is bolted on to the end of the slide bar. The grip may be obtained by.
means of a box and pin in the ordinary way, or the stationary jaw may receive,
a female screw, through which the pin or male screw may work, a collar being
fixed on the pin to bring back the moveable jaw, by which means I obtain
perfectly parallel motion with a firm grip.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Peter Wright in the Great Seal Patent Office on the 21st
March 1863.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, PETER
WRIGHT, of Dudley, in the County of Worcester, Manufacturer, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-fifth day of September, in the year of our Lord
One thousand eight hundred and sixty-two, in the twenty-sixth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Peter Wright, Her special license, that I, the said Peter Wright, my
executors, administrators, and assigns, or such others as I, the said Peter
Wright, my executors, administrators, and assigns, should at any time agree
with, and no others, from time to time and at all times thereafter during the
term therein expressed, should and lawfully might make, use, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the
Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN THE
MANUFACTURE OF PARALLEL VICES," upon the condition (amongst others)
that I, the said Peter Wright, by an instrument in writing under my
hand and seal, should particularly describe and ascertain the nature of
the said Invention, and in what manner the same was to be performed,
and cause the same to be filed in the Great Seal Patent Office within six
calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, 'that I, the said Peter Wright, do hereby declare
the nature of my said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement, reference being had to the Drawings hereunto annexed,
and to the letters and figures marked thereon (that is to say) :-.
This Invention consists in making parallel vices in the following manner :-
I first construct a slide box or receptacle for the slide to work in; this may
be made of either cast or wrought iron, and receives a slide bar, the section of
which is similar to that of a piece of T-iron; I then forge or stamp out the
two parts intended to form the jaws, one of which is fixed securely on the slide
box and remains stationary upon it; this jaw is slotted in its lower parts to
allow the slide bar to pass through it. The other jaw is also similarly slotted,
but is bolted on to the end of the slide bar. The grip may be obtained by
means of a box and pin in the ordinary way, or the stationary jaw may receive

page_text: a female screw, through which the pin or male screw may work, a collar being
fixed on the pin to bring back the moveable jaw, by which means I obtain a
perfectly parallel motion with a firm grip.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a side elevation of one of my improved vices; Figure 2, an end
elevation; Figure 3, a longitudinal section; Figure 4, a transverse section.
I will now proceed to describe the construction of this vice with the aid of
the Drawings. I first form the slide box (A) of either cast or wrought iron,
and of the proper form to receive a slide bar of the form, when fitted, of an
inverted T. I then forge or stamp out (as herein-after more particularly
described) the two pieces destined to form the jaws, one of which (B) is made
with flanges and slotted in its lower part to allow the slide bar to pass through
it into the slide box. This jaw is then secured firmly to the slide box by the
bolts and nuts. The other jaw (C) is similarly slotted, and is secured to the
end of the slide bar by bolts and nuts. I then proceed to fit in the box (D)
and pin (E); this may be done in various ways, that which I prefer being to
fix the box (D), which is tapped or cut internally or formed with a female
screw on the top-of-the-slide-box-(-A), which-is-sunk or grooved out to receive
it or instead of the box (D) the female screw may be tapped or cut in the
stationary side of the vice. The pin (E) is then passed through the eyes in
the head or jaws of the vice; this pin is furnished with an adjustable washer
(F) serving to bring back the moveable jaw (C). It is also provided with a
spring (G) between the adjustable washer and the jaw (C), to equalize the
pressure and compensate for the wear of the washer (F). In forming the
jaw pieces, or what are technically known in the trade as the "head and eyes,"
I can proceed in two ways, either by forging or stamping. If by forging, I
take iron suitable for my purpose and forge it into shape, as in the manu-
facture of ordinary vice heads; but I prefer the stamping process, which I
effect in. the following manner:-Having prepared a die of the requisite form,
I take iron of a suitable description, and whilst in a heated state I force it into
the die, employing for this operation a forge or steam hammer, until the die is
completely filled. It is then removed whilst hot to a corresponding die, and
afterwards placed in a hydraulic press to complete the process by pressing or
punching out the hole which is to receive the box and pin. The manner in
5 which these several parts are fitted and secured together has already been
pointed out.
Having thus described the nature of my said Invention, and in what manner
the same is to be warformed I alaim

page_text: Firstly, the improvement in the manufacture of parallel vices by constructing.
them with a slide box and inverted T-shaped slide bar, as herein described.
Secondly, I claim the improvement in manufacturing the vice jaws, or heads
and eyes, by stamping and pressing, as herein described.
And, thirdly, I claim the application of the adjustable washer and spring, as
berein more fully set forth and specified.
In witness whereof, I, the said Peter Wright, have hereunto set my
band and seal, this Sixteenth day of March, in the year of our Lord
One thousand eight hundred and sixty-three.
PETER WRIGHT. (L.B.);