Improvements in Locks and Keys for the same.
Year: 1892

page_text: Date of Application, 20th Dec., 1892
Complete Specification Left, 20th Sept., 1893-Accepted, 21st Oct., 1893
PROVISIONAL SPECIFICATION.
Improvements in Locks and Keys for the same.
I ABRAHAM HENRY WORMALD of Number 14 The Park, Eccles, in the
County of Lancaster, not in business, do hereby declare the nature of this invention
to be as follows:-
My invention relates to means for locking taps or valves used to control the
flow or supply of gas, water, liquor and fluids and for locking velocipedes or
rendering the same temporarily useless and generally to locks and keys for
portmanteaus or bags and for other uses for which my invention may be found
applicable.
In a former invention for which Letters Patent Number 15211 of the 1889
were granted to me in conjunction with two others a locking screw was used
to lock the plugs of gas and water taps and a special key was used to turn such
screw.
In my present improvements I also use a locking screw but I use a key of
different formation and a screw adapted to be turned by such key. The head or
outer end of the locking screw is formed with a central recess to receive the end
of the key and in the wall of this recess a groove or two or more such grooves or
slots is or are formed. The key is so constructed as that when inserted in the said
recess a wing or two or more wings can be caused to project from the key shank
sufficiently to engage with the groove or slot or grooves or slots in the screw head
so that the key cannot be turned without turning the screw. The wing or each
wing may be hinged and be pushed outward by means of a spindle sliding in the
key stem or may have a spring connection with the key stem or be otherwise so
connected with the said stem as that it could be made to project beyond the key
stem by pushing in the said spindle. The screw would lock the plug of the tap or
the spindle of the valve or a revoluble shaft or part of the velocipede by entering
a recess in such plug spindle or part and in the cases of locks for other purposes
would in a similar manner prevent the revolution or withdrawal of a part until the
screw would be turned back by the use of the key.
I so construct the lock as that access to the screw can only be had through a
passage which is not larger than the recess in the screw head and is in a cap or
part which cannot be removed.
To render it difficult to pick the lock I may form the grooves in the screw head
so that they do not extend to the screw end as for example I may form cross holes
in the screw head.
Dated thie 19th dow of December 1902
E. K. DUTTON & Co.,
5, John Dalton Street, Manchester, Agents.
COMPLETE SPECIFICATION.
Improvements in Locks and Keys for the same.
1. ABRAHAM HENRY WORMALD of Number 14 The Park, Eccles, in the
County of Lancaster, not in business, 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 and accompanying drawings:
--
My invention relates to means for locking taps or valves used to control the flow
or supply of gas, water, liquid and fluids and for locking velocipedes or rendering

page_text: the same temporarily useless and generally to locks and keys for portmanteaus or
bags and for other uses for which my invention may be found applicable.
In a former invention for which Letters Patent Number 15211 of the year 1889
were granted to me in conjunction with two others a locking screw
was used
to lock the plugs of gas and water taps and a special key was used to turn such
screw.
In my present improvements I also use a locking screw but I use a key of
different formation and a screw adapted to be turned by such key. The head or
outer end of the locking screw is formed with a central recess to receive the end
of the key and in the wall of this recess a groove or two or more such grooves or
slots is or are formed. The key is so constructed as that when inserted in the said
recess a wing or two or more wings can be caused to project from the key shank
sufficiently to engage with the groove or slot or grooves or slots in the screw head
so that the key cannot be turned without turning the screw. The wings or each
wing may be hinged and be pushed outward by means of a spindle sliding in the
key stem or may have a spring connection with the key stem or be otherwise so
connected with the said stem as that it could be made to project beyond the key
stem by pushing in the said spindle.
My invention is illustrated by the accompanying drawings which represent so
much of a lock and key as is necessary to the proper understanding of my
invention.
In the said drawings,
Fig. 1 is a sectional view of part of a lock and Figs. 2 and 3 are sections of the
shank of a key to suit such lock.
In Fig. 1a is a shell which may form part of a tap or of a lock or fitting for
application to other articles or bodies as hereinbefore indicated. As the general
formation of the lock would vary greatly I have not considered it necessary to
show more than the essential parts of a lock. The shell a is tapped to receive a
screw which is formed with a head b' which is fitted to slide and revolve in a
chamber bored in the shell. The said chamber is partly closed by means of a cap c
which is brazed soldered or secured so that it cannot easily be removed. This cap
and also the head 6' are bored with holes of the same diameter or thereabouts to
receive the shank of the key.
A slot d is formed in the head or there may be two or more slots at different
parts of the circumference of the head. The lock is intended to be used with a
key which is provided with a wing which can be thrust outward from the shank
after the latter has been passed through the hole in the cap.
The construction of my improved key is illustrated by Figs. 2 and 3. The parte
would be provided with a cross or handle of any ordinary or suitable form and be
bored to receive a sliding tubular shank which I will term the tube f. In the said
tube is a rod g which can slide within the tube. A spiral spring at h acting upon
a head on the rod tends to thrust out the tube but this action is limited by a pin
at i.
A wing is hinged in a slot in the end of the rod and is shaped so that when
the rod is pushed along the tube the wing is thrust out as in Fig. 3 but when the
tube is moved back by the reaction of the spring the wing is retracted as in Fig. 2.
When the wing is withdrawn into the tube as in Fig. 2 the end of the tube can be
passed into the bore of the head b'. When the end of the tube comes against the
end of the said bore further pressure upon the key handle causes the part e to
slide upon the tube whereby the rod 9 is pushed along the tube and the wing is
thrust out to engage with the slot d. The part 6 can then be turned so as to screw
the said part further in to effect the locking or to
< unscrew "the part to effect the
unlocking.
The screw would lock the plug of the tap or spindle of the valve or a revoluble
shaft or part of the velocipede by entering a recess in such plug spindle or part
and in the cases of locks for other purposes would in a similar manner prevent the
revolution or withdrawal of a part until the screw would be turned back by the use
of the key.

page_text: To render it difficult to pick the lock I may form the grooves in the screw head
so that they do not extend to the screw end as for example I may form cross holes
in the screw head.
The key might be provided with more than one wing as for example it
might have two wings which would turn outward from the tubular shank in
opposite directions.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is.
1. The construction of the parts of locks and keys substantially as and for the
purpose set forth and indicated.
2. In locks and keys a screw having a head or end adapted to receive the shank
of a key and to engage with a moveable wing or with moveable wings on such key
in combination with a key having a wing or wings which is or are thrust out when
end pressure is exerted upon the key after insertion in the lock substantially as set
forth and indicated.
3. A key having a hollow shank to receive a sliding tubular part in which is
mounted a rod which is jointed to or connected with a wing which is turned so
as to project beyond the tubular part when end pressure is applied to the key at
the times and for the purpose substantially as set forth.
4. The construction of locking device substantially as set forth with reference
to Fig. 1 of the drawings.
Dated this 19th day of September 1893.
E. K. DUTTON & Co.,
5, John Dalton Street, Manchester, Agents.