Improved Means for Locking Lamps and Lanterns to Vehicles.
Year: 1898

page_text: Date of Application, 13th Aug., 1898
Complete Specification Left, 15th May, 1899-Accepted, 17th June, 1899
PROVISIONAL SPECIFICATION.
Improved Means for Locking Lamps and Lanterns to Vehicles.
We, FRANK POWELL and FRANK HANMER, trading together as Powell &
Hanmer, of Chester Street, Aston, in the County of Warwick, Lamp Manu-
facturers, do hereby declare the nature of this invention to be as follows:-
This invention consists of the herein described improved means for locking
lamps and lanterns to carts waggons and other vehicles so as to prevent the said
lamps from being surreptitiously removed or stolen.
In carrying out this invention we provide a lock casing adapted to be fixed
by screws or other means to the side or other convenient part of a cart waggon
or other vehicle and made with a vertical socket part adapted to receive the
usual hook or tongue which is fixed to the back of the lamp. The said lock
casing contains a spring bolt or catch the fore end of which is inclined at the
upper side and projects into the socket part so that when the hook or tongue of
the lamp is inserted and pressed down in the socket as aforesaid the said spring
bolt or catch is thereby forced backwardly and when the lamp has been pushed
down to its lowest position the spring bolt or catch springs forward again and
engages with a hole or recess in the tongue or hook of the lamp and thus the
lamp is securely locked to the lock casing.
To unlock the lamp from the lock casing a suitable key has to be inserted in
the key hole at the side or other convenient part of the lock casing and turned
or otherwise moved so as to press back the spring bolt or catch free of the tongue
or hook and then by raising the lamp the tongue or hook is withdrawn from
the socket.
Instead of the bolt or catch part of the lock being arranged to be moved for-
ward by a spring to engage with the tongue or hook part of the lamp as above
described, the said bolt or catch may be arranged so as to be operated by the key
to engage with the said tongue or hook part.
Annat 1898
CHARLES BOSWORTH KETLEY,
Agent for the Applicants.
Improved Means for Locking Lamps and Lanterns to Vehicles.
We, Frank PowELL and FRANK HANMER, trading together as Powell &
Hanmer, of Chester Street, Aston, in the County of Warwick, Lamp Manu-
facturers, do hereby declare the nature of this invention and in what manner
077

page_text: the same is to be performed, to be particularly described and ascertained in and
by the following statement:-
-
This invention consists of the herein described improved means for locking
lamps and lanterns to carts waggons and other vehicles so as to prevent the said
lamps from being surreptitiously removed or stolen.
We will describe this invention by referring to the accompanying drawing on
which Fig. 1 is a sectional elevation of our invention shewing also a portion of
a cart wagon or other vehicle to which our invention is fixed and also a part of
the lamp which is locked thereto; Fig. 2 shews the same parts of our invention
as Fig. 1 but unlocked and the lamp removed therefrom; Fig. 3 is a general
view of the parts represented by Fig. 2; and Fig. 4 is an internal view of the
lock with part of the casing removed.
The same letters of reference indicate the same parts in all the figures.
In carrying out this invention we provide a lock casing A adapted to be fixed
as by screws passing through the holes a' to the side B or other convenient part
of a cart wagon or other vehicle and made with a vertical socket part a adapted
to receive the usual hook or tongue C which is fixed to the back D of the lamp.
The socket part a² is formed by fixing within the casing A a vertical plate E
So as to leave a narrow space a² between this plate E and the front of the
casing A down which the tongue or hook C can slide. The lock casing A con-
tains a spring bolt or catch the fore end fl of which is inclined at the upper
side and projects through a hole el into the socket part a². This spring bolt F
is made with a spring shank f which at f³ is rivetted to the plate E and is
bent backwardly as shewn in Figs. 1, 2 and 4 within the case so as to leave room
for the insertion of the key G through the key hole h between the spring
shank and the plate E for operating the catch as hereinafter described.
When the hook or tongue C of the lamp is inserted and pressed down in the
socket a² as aforesaid, it acts upon the inclined face f¹ of the spring bolt or
catch and forces the same backwardly and when the lamp has been pushed
down to its lowest position shewn in Fig. 1 the spring bolt or catch F springs
forward again and engages with a hole or recess in the tongue or hook C of
the lamp and thus the lamp is securely locked in the lock casing.
To unlock the lock from the lock casing the key G has to be inserted in the key
hole at the side or other convenient part of the lock casing A and turned or
otherwise moved so as to press against the spring shank f of the spring bolt
or catch F free of the tongue or hook C as shewn in Fig. 2, and then by raising
the lamp the tongue or hook C is withdrawn from the socket a². In order to
steady and support the key G the pin is provided and fixed to the plate E to
enter the barrel of the key.
The accompanying drawing illustrate what we consider to be the best way of
carrying our invention into practice but it will be understood that our invention
is not limited to the precise details shown.
Having now particularly described and ascertained the nature of our said in-
vention, and in what manner the same is to be performed, we declare that what we
claim is-
1. The improved lock for locking a lamp or lantern to a cart waggon or other
vehicle, consisting of a lock casing adapted to be fixed to the side of said
vehicle and made with vertical socket to receive the tongue C of the lamp,
a spring bolt or catch contained within said casing and made with an inclined
fore-end which is pressed back by inserting the lamp tongue in the socket and
then springs forward again and engages with a hole in said tongue, said bolt or
catch being arranged to be pressed back by a key to unlock the tongue substan-
tially as described.
2. In a lock for locking a lamp or lantern to a cart or other vehicle, the com-
bination of the lock casing A adapted to be fixed to the side of said vehicle, the

page_text: plate E fixed in said casing so as to form the vertical socket a² to receive the
tongue C of the lamp, the spring bolt or catch F provided with a spring shank f
fixed within the casing and made with an inclined fore end f¹ projecting through
a hole el in the plate E to engage with the hole c in the tongue C of the lamp
when the latter is pushed down into the socket 3, said spring bolt or catch F
being arranged to be pressed back free of the hole c¹ by inserting and turning
the key G in the lock casing, the parts being constructed and arranged sub-
stantially as hereinbefore described and illustrated by the accompanying drawing.
Dated this 12th day of May 1899.
CHARLES BOSWORTH KETLEY,
Agent for the Applicants.