Year: 1894

page_text: Date of Application, 30th May, 1894
Complete Specification Left, 26th Feb., 1895 Accepted, 6th Apr., 1895
A communication from NICOLAY ANTON HENRY AUGUSTINUS SPIERING,
Marine Engineers' Institute, Shanghai, China.
I, ALFRED JULIUS BOULT of 323 High Holborn, in the County of Middlesex,
Chartered Patent Agent, do hereby declare the nature of this invention to be as
follows:-
This invention relates to adjustable spanners and may be carried out as follows:-
The spanner itself consists of a head having the usual arm or handle preferably set
at an angle to the axis of the head; the head is slotted angularly to receive two
sliding jaws each of which slides at an angle to the axis of the head so that when
brought forward to the leading end of the spanner they are nearest together and
adanted to receive the smallest nut for which the spanner is made and when moved
backwards into the head of the spanner to their fullest extent they are adapted to
receive the largest nut. The jaws may be operated by a T-headed bolt each end
of the T-head entering a recess in one of the jaws and the stem of the bolt being
screwed and passing through a nut which is free to turn in a suitable recess in the
body of the spanner, the stem working in a hole or slot in the head of the spanner.
To prevent any of the movable parts of the spanner becoming lost or disconnected
suitable means may be employed such for example as pins passing through slots in
the jaws, but a convenient and satisfactory arrangement I find is to place a pin
through the head of the spanner from side to side in such a position that the bolt
cannot be screwed back beyond a certain distance; this prevents the bolt and jaws
from becoming disconnected and secures everything. The pin may be screwed or
rivetted in or secured in any convenient manner.
ليمي
1
1004
W. P. THOMPSON & BOULT,
Agents for the Applicant.
A communication from NICOLAY ANTON HENRY AUGUSTINUS SPIERING,
Marine Engineers Institute, Shanghai, China.
I, ALFRED JULIUS BOULT, of 323 High Holborn, in the County of Middlesex,
Chartered Patent Agent; do hereby declare the nature of this invention and in what
manner the same is to be perforined, to be particularly described and ascertained
in and by the following statement :-
This invention relates to adjustable spanners and will be best understood by
reference to the accompanying drawings in which ;-
Fig. 1 is a longitudinal section of the spanner with portion of the handle in
elevation and the jaws in their nearest-together position.
D
027

page_text: Fig. 2 is a transverse section on the line 2-2 of Fig. 1.
Fig. 3 is an elevation of the spanner with the jaws in nearly their widest-apart
position.
Fig. 4 is an end view of Fig. 3, and
Figs. 5 and 6 are a longitudinal section and an end elevation respectively showing
a slightly modified construction of the spanner.
Figs. 5 and 6 are drawn to a smaller scale than Figs. 1, 2, 3 and 4.
Like letters indicate like parts throughout the drawings.
The spanner itself consists of a head A having the usual arm or handle A' set at
an angle to the axis of the head as shown in Figs. 1 and 2 or in line with it as
shown in Fig. 5. The head A which may be of any convenient shape is slotted
angularly as at A2 to receive two sliding jaws B each of which slides at an angle to
the axis of the head A so that when brought forward to the leading end of the
spanner they are nearest together as indicated in Fig. 1 and adapted to receive the
smallest nut for which the spanner is made, and when moved backwards into
the head of the spauner to their fullest extent they are adapted to receive the
largest nut; in Figs. 3 and 4 the jaws B are shown in nearly the last named position.
The jaws B as shown in the drawings may be operated by a T-headed bolt C C₁
each end of the T-head C entering a recess B' in one of the jaws B and the stem C'
of the bolt C C¹ being screwed and passing through a nut D which is free to turn
in a suitable recess or aperture A³ in the body or head A of the spanner, the
stem C working in a hole or slot A' and the T-head C in recesses A³ in the head
of the spanner. To prevent any of the movable parts of the spanner becoming lost
or disconnected, suitable means may be employed such for example as pins passing
through slots in the jaws B, or, as hereinafter explained and as shown in Figs. 5
and 6, projections A' on the head A engaging with grooves B2 in the jaws B, but a
convenient and satisfactory arrangement is, as shown in the drawings, to pass a
pin E through the head A of the spanner from side to side in such a position that
the bolt C C cannot be screwed back beyond a certain distance; this prevents the
bolt C C and jaws B from becoming disconnected and secures everything. The
pin E may be screwed or rivetted in or secured in any other convenient manner.
The spanner-head A is preferably provided with depressions as A' to enable the
nut D to be more readily rotated by the operator.
Instead of the spanner having two adjustable jaws B as previously described it
need have only one such jaw the other one being fixed or formed in part with the
head A; an L-shaped bolt and a nut thereon would be sufficient for adjusting this
jaw. Or, instead of using a bolt C¹ for operating the jaw or jaws B there may be
used any other mechanical device for fulfilling said function.
To counteract any tendency which the jaws B may have to fall inwards when
they approach their nearest-together position I may form the bolt CC' more in the
shape of a Y than a T each end of the head C entering a recess in one of the jaws,
approximately at right angles to the. direction of movement of said jaw; or, as
shown in Figs. 5 and 6 my correspondent may, for this purpose, provide
projections A on the head and grooves B' in the jaws for receiving the projections,
or the projections may be on the jaws B and the grooves in the head A.
The jaws B may be arranged at any desired angle to each other, Figs. 1 and 5
for example showing two spanners which differ in this respect.
Having now particularly described and ascertained the nature of the said inven-
tion, as communicated to me by my foreign correspondent, and in what manner
the same is to be performed, I declare that what I claim is:-
1. In a spanner the use of one or more sliding jaws each adjustable by mechanism
constituted by a screw or other operating device and surfaces in or upon the jaw
and on the body of the spanner at an angle to the direction of movement of the
operating device and interacting with said device.
2. In a spanner such as claimed in the preceding claim having two jaws one
fixed or non-adjustable and the other adjustable the employment of a bolt on which

page_text: the head engages with a recess such as B¹ in the adjustable jaw and the screwed
stem with a nut D capable of rotation but secured against axial movement in the
body of the spanner substantially as and for the purpose described and illustrated
in the accompanying drawings.
3. In a spanner such as claimed in the first preceding claim having two adjustable
jaws such as B the employment for operating these jaws of a bolt such as C C³ and
a nut D each end of the head of the bolt engaging with a recess such as B' in one
of the jaws B substantially as described and illustrated in the accompanying
drawings.
4. In a spanner such as claimed in the first preceding claim the combination with
the spanner head and each of the sliding jaws of a projection on the former
engaging with a groove of the latter or vice versa substantially as and for the
purpose described.
5. The combination and arrangement of parts constituting the complete
adjustable spanner substantially as described and illustrated in the accompanying
drawings.
Dated this 26th day of February 1895.
W. P. THOMPSON & BOULT,
Agents for the Applicant.