Improvements in Screw Wrenches.
Year: 1893

page_text: Date of Application, 21st Nov., 1893-Accepted, 23rd Dec., 1893
COMPLETE SPECIFICATION.
Improvements in Screw Wrenches.
I, WILLIAM DICKS, of 153 Victoria Street, Highland Park, Buffalo in the
County of Erie and State of New York, in the United States of America, 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 :-
My invention relates to certain improvements in wrenches, also to certain details
of construction, all of which will be fully and clearly hereinafter described and
claimed, reference being had to the accompanying drawings, in which :-
Fig. 1, is a side elevation of my improved wrench showing the jaws of the wrench
partly opened, thereby exposing a portion of a screw driver combined with it, and
in position for use.
Fig. 2, represents a similar view of the screw driver, showing the jaws closed and
the end of the screw driver drawn within the handle out of sight.
Fig. 3, is a back view of the wrench, showing the jaws open and the screw driver
exposed.
Fig. 4, is a detached side elevation of one-half of one of the movable jaws,
showing its construction.
Fig. 5, is a rear view of the movable jaw shown in Fig. 4, one half being shown
by dotted lines.
Fig. 6, represents a cross section through the handle of the wrench cutting
centrally through the depression, 10, and opening, 9*.
The object of my invention is to simplify the construction of the wrench so that
it can be more cheaply made, also in combining a screw driver with the movable
jaw of the wrench.
Referring to the drawings:
1, represents the handle of the wrench, 2, the portion upon which the movable
jaw slides back and forth and 3, represents the stationary jaw, the whole being
formed in one piece of wrought metal, drop forging preferred, but if desired cast
malleable iron or cast iron may be used.
The stationary jaw being formed in one piece with the slideway portion and
handle, it would be impossible to get an ordinary sliding or movable jaw over either
the handle or stationary jaw, I therefore form the sliding jaw of my wrench in two
parts, 4 and 4", see Figs. 3-4-5.
These jaws are preferably made by drop forging, the half portions being rights
and lefts, substantially as indicated in Fig. 5, these portions, 4, and 4", are fitted
together over the shank or portion, 2, upon which it slides back and forth, and are
then riveted securely together by rivets 5, and are fitted so as to slide easily along
the sliding portion, 2. To the sliding jaw, 4, and 4", is rigidly secured a screw
bar, 8, by a pin, 6*, having its screw portion, 7, extend from the end, i, (which
screws into the sliding jaw and is secured by the pin, 6*,) to or about the point, j,
from which it extends down and terminates in a screw driver point, 8. The screw
bar, 8, passes through a longitudinal hole 8, extending clear through the handle, 51,
the hole 8, is shown by dotted lines in Figs. 1-2. Before the screw bar, 6,
is secured by the pin, 6*, to the sliding jaw, a cylindrical milled nut, 9, is put into
an opening 9, in the handle so as to be in a line with the hole, 8ª, so that the screw
bar can be screwed through the nut and then forward far enough to allow the end
to be screwed into the movable jaw and be secured by the pin, 6. It will be
noticed that the portion of the handle 1, is hollowed out so that a depression, 10,
surrounds the opening, 9*. The object of this is to allow more room for operating
the milled nut, 9.

page_text: In my device the screw driver is drawn up within the handle at the same time the
jaws are brought together, thereby reducing the length of the wrench and leaving
everything drawn closely together and the length of the wrench reduced so that it
is in a better condition to pack away in smaller space when not required for use.
The advantage in constructing the handle, the portion for the sliding jaws and the
fixed jaw, all in one piece, and the movable jaw in two parts as described,
is that it materially reduces the cost of the wrench without impairing its appearance
or strength.
I claim as my invention.
1. In a screw wrench, a handle, a slideway portion and a fixed or stationary jaw
all formed in one piece, the handle being set partly to one side of the slideway
portion, in combination with a movable jaw mounted on the slideway portion,
a screw bar passing longitudinally above the slideway portion and through the
handle, a screw driver portion at the free end of the screw bar having its opposite
end secured rigidly to the movable jaw, a milled nut mounted on the screw portion
of the screw bar within an opening through the handle, for operating the screw
bar, the movable jaw and the screw driver, whereby the screw driver is exposed
when the jaws of the wrench are separated, and is drawn in place within the
handle when the jaws are together, substantially as described.
2. In a screw wrench, a stationary or fixed jaw, a slideway portion and a handle
all formed in one piece, in combination with a movable jaw formed in two parts
adapted to be united on the slideway portion and riveted together, a screw bar
rigidly secured to the movable jaw and a nut mounted on said screw bar within an
opening in the handle, substantially as and for the purposes described.
3. A screw wrench consisting of a handle, a slideway portion and a fixed jaw, all
formed in one piece, the handle being to one side of the slideway portion, a screw
bar passing longitudinally through the handle and rigidly connecting with the
movable jaw, an opening through the handle, a depression surrounding said opening
and a cylindrical nut mounted on the screw bar within the opening in the handle
substantially as and for the purposes described.
Dated the 28th day of October 1893.
WILLIAM DICKS.