A Standing or Portable Parallel Vice
Year: 1886

page_text: Date of Application, 10th Mar., 1886.
Complete Left, 10th Dec., 1886.
Complete Accepted, 14th Jan., 1887
JOSEPH EVANS Senr., Highfield Tool Works, Randall Street, Sheffield, County of
York, Engineers Tool Manufacturer, do hereby declare the nature of this invention
to be as follows :-
A new Standing or Portable Parallel Vice. Made entirely of Steel, or entirely of
Wrought Iron with Steel Jaws, or of. Cast Iron with Steel Jaws screwed on. Having
two or more screws, worked by two or more cog wheels either straight, bevel, or
friction or otherwise."
The bottom screw or screws worked from the Top or first screw, by means of the
cog wheels above mentioned, by an ordinary vice pin or handle. The screw or screws,
carrying the sliding side of vice is passed through the fast side, into an ordinary
vice box or screwed into the fast side itself. The Bottom of the sliding side of the
vice, slides along a bar projecting from the fast side, either on its surface, or in straight
or dovetailed grooves, and between the screws or below the screws à bar secured on
the sliding side passes or slides entirely through the fast side of the vice.

page_text: A New Standing or Portable Parallel Vice.
I JOSEPH EVANS Senr. of the Highfield Tool Works, Heeley Sheffield, in the
County of Derby (late in County of York) Engineers Tool Manufacturer 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 a new standing or portable parallel vice.
The Vices constructed according to this invention, are made of Wrought Iron with
Steel Jaws welded on, or of all Steel, or of Cast Iron with Steel Jaws.
The front Jaw N, of this vice is constructed so as to slide parallel with the back
Jaw M, by means of two or more screws D F, which are worked by three or more
cog wheels, C, CC, CCC. The screw D which works into a box E is worked by a
handle J, which has a cog wheel C, fastened on the part nearest to the outside of
Jaw N at point P P, and which turns round cog wheels CC, and CCC. Attached to
cog wheel CCC, is a screw F which passes into and through the side B. Just below
is a bearing bar G, which is fastened to the sliding side A, and which passes through
the fast side B.
The bottom of sliding side A, slides on a projecting Bar H from side B in a
groove H H.
So that, as the handle J, turns the screw D, it also revolves cog wheels C, CC, CCC,
which is in communication with the screw F, which causes a parallel sliding motion
to side A.
Two or more wheels may be used, which may be either bevel, cog, or friction, or
chain, as required.
Two or more Screws as D and F may be used.
For heavy vices, they.can be made with two or more legs K.
In lieu of a projection Bar H with groove H. H. a round, squar, flat, T or any
various formed Bar may be used, and made to pass entirely through the sliding side A
at point I I, or vice versa, through side B, being fastened on side A.
In some cases it may be an advantage for side B, to be made the sliding side, and
the side A the fast side, which may be done by means of Screw D working into the
side B, instead of into the Box E.
If required the wheels C, CC, CCC, may be cased up to prevent fileings or dirt
from getting into the teeth.
The Vices are made Portable by taking away the Legs and adjusting a thumb screw
to screw on a bench.
The Jaws M and N, may be made swival jointed to hold taper objects.
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. That the vice being parallel will grip or hold any object (whether large or small)
much tighter and more firmly, between the jaws, as the object is gripped the whole

page_text: depth of the jaws, as Figuar 2 on sheet 2; instead of at the top of jaws only as
Figuar 3 sheet 2, (when a small object is gripped), and at the bottom of the jaws, as
Figuar 4, sheet 2, (when a large object is gripped), as in the case of ordinary vices.
2. That when an object is gripped at one edge only of the jaws, it is gripped firmly,
as Figuar 5 sheet 2, and the screw D, fitting tightly in the side A, prevents the
opposite side not in use, from giving way as Figuar 6 sheet 2; as is the case with
the ordinary vice.
3. That the objects, being gripped in this vice, much more firmly, than with the
ordinary vice, the amount of work that can be done, through the vice not allowing the
object to slip or get loose, will be very considerably more than with the ordinary vice
now used.
JOSEPH EVANS, SENR.