Improvements in Wrenches or Spanners.
Year: 1897

page_text: PROVISIONAL SPECIFI
Improvements in Wrenches or Spanners.
I, MEYER JOSEPH SILVER, of 17, James Street, Moss Lane East, Manchester,
in the County of Lancaster, Traveller, do hereby declare the nature of this inven-
tion to be as follows:-
My said invention relates to improvements in wrenches or spanners used for
turning nuts, bolts, pipes and the like as is well understood.
In a wrench made in accordance with my invention I form the lower jaw to slide
in suitable ways formed in the stem or handle of the fixed upper jaw and a
The back of the
shrouding piece secured to the handle of the fixed upper jaw.
lower sliding jaw is formed or provided with rack teeth spaced a suitable distance
apart. Between snugs projecting from the back of the handle and shrouding
piece, I pivot loosely a pendent lever which is adapted at times to engage with the
teeth on the back of the sliding jaw. To operate the wrench the pendent lever is
turned up on its pivot thereby disengaging it from the teeth of the sliding jaw.
The sliding jaw may then be readily slid in its bearings to engage with the nut,
pipe or the like. When the requisite adjustment has been attained the pendent
lever is lowered and engages with one of the rack teeth on the lower sliding jaw.
By gripping the pendent lever and handle of the spanner the proper adjustment
is easily maintained and the wrench is prevented from slipping on the nut.
stead of the pressure of the hand being utilized to maintain the pendent locking
lever in position a sliding ring or the like embracing the handle and lever may
be employed if desired.
In-
As the essential feature of my invention consists in the employment of a sliding
jaw provided with rack teeth adapted to be held in any required position by means
of a locking lever I do not confine myself to the exact arrangement described as
the same may be varied to some extent.
100%
Improvements in Wrenches or Spanners.
I, MEYER JOSEPH SILVER, of 75, Greenwood Road, Dalston, N.E., London, in
the County of Middlesex, Traveller (late of 17, James Street, Moss Lane East,
Manchester, in the County of Lancaster), do hereby declare the nature of this in-
Prica 8d]

page_text: vention, and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement and accompanying
drawings:
My said invention relates to improvements in wrenches or spanners used for
turning nuts, bolts, pipes and the like as is well-understood.
The accompanying Sheet of Drawings, to which I will refer, clearly illustrates
my invention.
A
In the said drawings,
11
Fig shows a side elevation of my improved. wrench with the jaws closed.
Fig. 2 is a view showing the jaws apart.
11 2
Fig. 3 is a plan view with the lever removed and,
Figs. 4 and 5 show a modified form of my improved wrench.
-5.01
а
יני
1735903
In a wrench constructed in accordance with my invention the upper jaw a is
fixed and forms part of the handle b. The handletb is formed with a recess c
shown more clearly in the plan view Fig. 3. The loose jaw d slides within this
recess which forms a guide for the sliding jaw d and a shroud or cover plate e
secured to the handle by means of screws f maintains the sliding, jaw within
the recess c.
The back of the sliding jaw is formed with rack teeth d¹ spaced a
suitable distance apart, projecting out of the recess c which is opened out for a
portion of its length, see Fig. 3, and ledges d d upon the jaw d rest upon the
top of the handle b and cover plate.e.,, This will be more apparent from an inspec-
tion of Fig. 3. The ledges d² serve to prevent the sliding jaw d from' rocking
when under extreme, pressures.
1
..
11
Between snugs g g formed on the handle b and cover plate e I pivot loosely a lever h
which is provided with a tooth h¹ adapted at times to engage with the teeth on
the back of the sliding jaw, d. In Fig. 3 the lever his removed so as not to obscure
the sliding jaw d and rack teeth formed thereon. To operate the wrench the
lever his turned on its pivot in the direction of the arrow Fig. 2. This disen-
gages the tooth h of the lever from; the rack teeth d¹ of the sliding jaw d.
The sliding jaw d may then be readily slid in its bearings to engage with the
nut, pipe or the like... When the requisite adjustment has been obtained the lever h
is lowered and engages with one of the rack teeth d¹ on the sliding jaw' d.
,!
By gripping the lever and handle 6 of the spanner the requisite adjustment
is easily maintained and the spanner; is prevented from slipping on the nut.
The traverse of the sliding jaw d is limited, by the length of the recess formed
in the handle 6 as will be noted from an inspection of the drawings.
In Figs. 4 and 5 I show a modification of my improved spanner. In this case
the rack 'teeth d. on the sliding, jaw d instead of projecting beyond the back of
the spanner as in Figs. 1 to 3 are housed within the recess provided by the handle b
and cover plate e. To prevent rocking or lateral movement of the sliding jaw d
I form the cover plate e with a slot within which slides a pin ; formed on or
secured to the sliding jaw d. In other respects the spanner is the same as that
shown in Figs. 1 to 3 and the spanner is operated in a precisely similar manner.
As the essential feature of my invention consists in the employment of a sliding
jaw provided with rack teeth 'adapted to be held in any required position by means
of a locking lever I do not confine myself to the exact arrangements described as
the same may be varied to some extent.
11555101
Having now particularly described and ascertained the nature of my said in-
vention and in what manner, the same is to be performed I declare that what I
claim is;
'
1) The improved wrench or spanner for turning nuts, bolts and the like, con-
sisting of a fixed jaw and handle and a loose jaw formed with rack teeth and slid-
ing in recesses provided by the handle and a cover plate /secured thereto, the rack
teeth projecting from the back of, or housed within the handle, and operated by
a pivotted lever in the 'manner and substantially as described and illustrated. ĭ

page_text: 2) In wrenches or spanners for the indicated purpose, forming the sliding jaw
with rack teeth and holding the same in the required position by means of a lock-
ing lever substantially as described and shown.
1000
οι
day
For the Applicant,
E. K. DUTTON & Co.,
Chartered Patent Agents, 5, John Dalton Street, Manchester