Improved Combined Monkey and Pipe Wrench.
Year: 1898

page_text: Con
Date of Application, 11th May, 1898
OLL
1077
ALL
1000
PROVISIONAL SPECIFICATION.
Improved Combined Monkey and Pipe Wrench.
I, OSCAR MARION MILLER, of Benedict, York County, Nebraska, U.S.A., Farmer,
do hereby declare the nature of this invention to be as follows:-
The object of this invention is to provide a wrench which is applicable for use
both as a pipe wrench and an ordinary monkey wrench, and in which the pipe-
gripping mechanism can be provided at little additional cost in the manufacture.
The invention comprises a wrench consisting of a handle; a stem projecting
therefrom and formed with a fixed hammer-head or jaw at its end; and a
sliding jaw adapted for reciprocation on the stem by means of a worm-wheel
engaging teeth on the stem, and adapted to be operated by the operator's fingers.
Other means for operating the sliding jaw may, however, be employed if desired.
The sliding jaw is wider than usually made, and has a substantially semi-circular
recess in its rear edge to receive a piece of flat metal, bent to conform to the
contour of the recess, roughened on its concave surface, and formed with side
arms which are pivoted to the sides of the movable jaw. This piece of metal forms
the pipe-gripping device, and is kept normally within the recess by a suitable
spring-catch which overlaps its edge when in the recess.
The upper part of the movable jaw is formed with recesses or steps in which the
pipe to be held is placed. When the gripping device is swung around its pivots
over the pipe, and the wrench slightly pulled around, the roughened surface of
the gripping-device will impinge upon the pipe, between it or the step or recess
in which it rests, and hold it firmly.
R. RAINSFORD,
Agent for Applicant.
COMPLETE SPECIFICATION.
Improved Combined Monkey and Pipe Wrench.
I, OSCAR MARION MILLER, of Benedict, York County, Nebraska, U.S.A., Farmer,
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 is in the nature of an improved combined monkey and pipe wrench,
and it has for its object to provide a wrench of this character having a worm
wheel operated sliding jaw, and such jaw equipped with pipe grip devices, which,

page_text: when not in use, are capable of such adjustment as to be securely held from project-
ing beyond the rear edge of the said sliding jaw or in any manner interfering with
all the movements or uses for which the ordinary monkey wrench is adapted.
The invention also comprehends a novel construction of pipe grip devices
attached to the sliding jaw in such a manner as to effect an easy manipulation
thereof.
Reference being had to the accompanying drawings:-
Figure 1 is a perspective view of my improved wrench, the pipe grips being
shewn in the closed position.
Fig. 2 is a side elevation of the wrench, the pipe grip being shewn in its
operative position; and
Fig. 3 is a detail perspective view of the pipe grip.
In the drawing, in which like numerals indicate like parts in the several figures,
1 indicates the toothed shank, having a handle 2, at one end and the integral
stationary jaw 3, at the other, and 4 indicates the sliding jaw.
This jaw in its general form is of the conventional shape, except that its rear
edge is extended somewhat more, as at 4", the purpose of which will presently
appear.
5 indicates a finger operated worm wheel journalled in the sliding jaw to mesh
with the teeth 1", of the shank as clearly shewn in Fig 2.
The rear edge 4", of the sliding jaw, at a point preferably over the worm wheel
opening, has a seat 6°, formed with upper and lower faces 6-6 and the semi-
circular base 6*. Within this seat portion is adapted to fit a pivoted pipe grip
or jaw 7, the body proper of which has a semi-circular gripping face 7", serrated
or otherwise roughened forwardly extending finger or guide members 7, and
parallel extensions or side arms 7, the ends of which are apertured to engage the
pivot pin 8, fitted in or integrally formed with the jaw edge 4".
It will be noticed by reference to Fig. 2, the grip 7 is so hung on the rear
edge 4", that when swung to its closed position it will snugly fit within the seat G",
in such a manner as not to project beyond such edge 4", or interfere with the use
of the implement as an ordinary monkey wrench; and to hold such grip firmly in
the socket and also pulled out to an operative position, the edge 4" has a vertical
depression 4b, in which is secured a spring latch 9, the upper or lock end of
which is in the path of movement of the pivoted grip 7, and is adapted to snap
in front of the outer edge 7 of the grip as clearly shewn in the drawings, it being
obvious that by providing a latch as shewn, the grip 7 can be easily pulled out free
from such latch when desired.
seat or
The arms are in practice of such length as to permit the grip being swung
outward, sufficient to engage a pipe of a large diameter as indicated at X, in
Fig. 2, and grip it against the rear edge 4"; or pipes of smaller diameter, which may
he gripped against the bevelled upper edge 4, of the jaw. To ensure a positive
tight grip against pipes of very small diameter, such bevelled portion 4 is made
with one or more angle seats 4, so as to form double grip surfaces opposing the
pivoted grip as indicated at X' in said Fig. 2.
By constructing the pivoted grip and connecting it to the jaw 4, as shewn, it is
manifest such grip can be used as an ordinary swing jaw opposing the flat rear
edge of the jaw 4; and by providing the said jaw 4, with a bevelled bearing having
one or more angle seats and having the grip 7 in such relation to the bevelled
bearing as to swing thereover, the utility of the implement is enhanced as it can
operate on pipes of smaller diameter with a more positive gripping action.
Furthermore by connecting the grip to the jaw 4, and providing such jaw 4
with a seat or socket as shewn, when not in use the grip can be swung entirely
out of the way and held from danger of being broken during the ordinary handling
of the implement as a monkey wrench.
The front fingers 7b of the grip, serve as guides to move the pipe to the grip seat
in operation.
While I have shewn the sliding jaw operated by a worm wheel engaging a

page_text: toothed shank, it is obvious my improvement can be applied to a sliding jaw
operated in any other manner.
My improvement is of a very simple character and can be readily constructed
in connection with the ordinary monkey wrench structure without appreciably
increasing the cost thereof.
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). In a monkey wrench, the combination with the sliding jaw having a seat
in its rear edge; of a swinging grip jaw, pivotally hung on such jaw to swing
outward to oppose the rear edge of the jaw, and constructed to fit into the jaw seat
when held in an inoperative position, as specified.
(2). In a sliding jaw wrench, a sliding jaw having a socket, or seat on its
rear edge, a pipe grip pivotally hung on such jaw to close into the socket or seat
when held in its inoperative position; and a spring detent on such jaw for locking
the grip in the said socket or seat, as specified.
(3). A sliding jaw wrench, having a seat or socket in its rear edge, said rear edge
having a bevelled bearing portion; a grip jaw having a semi-circular bearing face,
said grip jaw being pivotally hung on the sliding jaw, and so constructed to he
swung out to oppose the straight or the bevelled portions of the rear edge of the
sliding jaw and to fit in the seat of such sliding jaw, as and for the purposes
specified.
(4). A monkey wrench having its sliding jaw provided with a seat 6", in its rear
edge, said edge having a bevelled portion provided with angle bearings, in
combination with the grip member 7 having a gripping face 7", guide fingers,
arms 7, pivoted on the rear edge of the jaw, at a point between the seat and a
hevelled bearing portion, and the spring latch, all being arranged substantially as
shewn and for the purposes specified.
Dated this 11th day of March 1899.