Year: 1896

page_text: JOSEPH REID 9 Lapstone Road Millom Cumberland Grocer do hereby declare
the nature of this invention to be as follows:-
The object of this invention is to facilitate the adjusting of spanners with
movable jaws also to secure the movable jaws from shifting when adjusted. I effect
these objects by means of a rack bar arrangement engaging with a similar rack on
the movable jaw of the spanner as will be seen by refering to the accompanying
sheet of drawings.
Figs. 1, 2, 3, 4, 5, appertain to those spanners having a longitudinal slot in the
body of the spanner through which the movable jaw is adjusted.
In Fig. 1, a rack bar A is hinged on to the body of the spannor B at C and
engages with a similar rack on the movable jaw D. A spring catch E secures the
rack A to the body of the spanner.
Fig. 2. is a modification showing a sliding spring E which secures the rack bar A
when adjusted. By drawing the sliding spring E outwards the rack bar A is
released and allows the movable jaw D to be adjusted.
Fig. 3. is a modified form of rack bar A' showing the rack A made round in
the form of a screw to rotate on the hinged rack bar A¹.
Fig. 4. is a modification showing rack arrangement as applied by means of spring
rack bar A. A cam lever F is hinged on to the body of spanner at C the edge of
the cam coming in contact with the spring rack bar A. By pressing the cam
lever F towards the body of the spanner it causes the spring rack bar to engago
with a similar rack on the movable jaw D.
Fig. 5. is a modification showing the adjusting arrangemont operated by means
a cam lever. A cam lever F is hinged on to that part of the movable jaw D
shown in dotted lines G passing up through a central slot in the upper part of the
jaw D.
When the cam lever is pressed towards the body of the spanner it
causes the rack on the jaw D to engage with a similar rack on the body of the
spanner,
The rack arrangement (not shown) may also be applied by means of a rack bar
hinged on to the bottom part of the fixed jaw and running parallel with the body
of the spanner and engaging with a similar rack on the bottom part of the
movable jaw.
1
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I, JOSEPH REID, of 9, Lapstone Road, Millom, Cumberland, Grocer 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 adjustable spanners and the object is to facilitate the

page_text: adjusting and securing of the movable jaw from slipping after adjustment has been
made. I attain these objects by means of a rack bar arrangement which engages
with a corresponding rack on the movable jaw of the spannor, and in order to more
clearly show my invention, I make reference to the accompanying sheet of drawings,
appertaining to that class of spanners having a longitudinal slot in the body of them
through which the movable jaw is adjusted. The drawings shew the spanners in
side view with the movable jaw exposed. In each figure similar letters denote as
far as possible the same parts.
In Fig. 1 the rack bar a is hinged at b to the body c of the spanner, and this bar
engages with a corresponding rack on the stem of the movable jaw d. A spring
catch e secures a too after the spanner has been adjusted, which is offected by
releasing the bar a, moving the jaw d the required amount, and then securing the
bar a by the catch e. is the fixed jaw.
Fig. 2 shews a modification in which a sliding spring g is drawn rearward to
release the rack bar a and pushed back when the adjustment is effected.
Fig. 3 shews a modification in which a screw is revolvable around the upper
end of the bar i which is pivotted at b to the body c of the spanner. In use the
spring catch e is released, the bar i turned on the pivot b, the movable jaw d is
then approximately adjusted, and the bar i turned back and secured by the spring
catch e. A slight turn of screw will then tighten up the jaws.
Fig. 4 shews a modification in which the screw 'h is held by a slide after
adjustment. Tho bar i has a sloped end ; and on drawing back the slide & the
bar i can be turned on the pivot band after approximately adjusting the
movable jaw, the slido k is pushed back when a slight turn of h will complete
the adjustment.
In the modification shown in Fig. 51 provide a spring rack bar / whoso tendency
is to keep clear of the rack on the stem of the jaw d and this condition can at any
time be brought about by moving the cam lever m on the pivot b. After adjusting
the movable jaw, the cam lever is pushed back causing the two racks to engage
with one another.
In Fig. 6 the movable jaw d is slotted at n and works over a pin o attached to
the slide p working along the body c on which it is held in position by the lip
running in the groover provided in. The opposing edges of c and d are racked.
A cam lever mis pivotted at b to p and by turning the lever outwards and then
inwards the jaw d can be adjusted and secured in position after adjustment.
I do not confine myself to the precise configuration relative proportion or
disposition of parts as shewn in the accompanying drawings, as any or all of them
may be considerably varied without doparting from the spirit of my invention.
Having now particularly described and ascertained the nature of my inven-
tion and in what manner the same is to bo performed, I declare that what I
claim is;-
CLAIMS.
1. Spanners adjustable by means of a rack bar hinged to the body of the spanner
and kept in position after adjustment by a spring catch, the whole substantially as
described in the above specification, and exemplified by Fig. 1 of the accompanying
drawings.
2. Spanners adjustable by means of a pivotted rack bar, held in position after
adjustment by means of a slide moving along the body of the spanner, the whole

page_text: body of the spanner, the said sorew being released for adjustment and retained
when adjusted by means of a slide, the whole substantially as described in the
above specification, and exemplified by Fig. 4 of the accompanying drawings.
5. Spanners adjustable by means of a spring rack bar which can be brought into
and removed from engagement with the stem of the movable jaw by means of a
pivotted cam lever, the whole substantially as described in the above specification,
and exemplified by Fig. 5 of the accompanying drawings.
6. Spanners adjustable by means of a sliding jaw having a racked edge which
can be engaged with a corresponding rack on the stem of the fixed jaw, by means
of a pivotted cam lever, the whole substantially as described in the above
specification, and exemplified by Fig. 6 of the accompanying drawings.
7. The improvements in adjustable spanners provided for and operating
substantially as described in the above specification, and exemplified by Figs. 1,
2, 3, 4, 5, 6, and 7 of the accompanying sheet of drawings.
HUGHES & YOUNG,
23, Coleman Street, London, E.C., Agents for Applicant.