Improvements in Locks Operated by Keys.
Year: 1899

page_text: Date of Application, 14th Mar., 1899
Complete Specification Left, 14th Dec., 1899-Accepted. 10th Mar.. 1900
Improvements in Locks Operated by Keys.
I, THE HONOURABLE ROBERT WILLIAM HENRY RODNEY, The Parks, Thornbury,
Gloucester, Gentleman, do hereby declare the nature of my invention to be
as follows:
My invention relates to improvements in locks and has for its object the
simplifying and cheaper manufacture of same.
:-
I carry my invention into practice in manner as follows:-
I form a case hereinafter in these presents called the "casing."
In the casing between suitable guides is placed what will hereinafter be
referred to as the bolt.
The bolt may be of any suitable section or material.
On what will be termed for the sake of description only the top of the bolt,
are formed two semi or other frictionably proportioned globular hole or holes
such holes will be hereinafter referred to as the plunger holes.
The plunger holes of which there are by preference two are placed in a line
with each other and between the two plunger holes is a path and this path is
so formed that it rises to a higher point at or about midway between the plunger
holes, or in other words there is an incline to a high point from each of the
plunger holes.
The high point being situated about halfway between the two plunger holes.
Above the bolt is placed a plunger with a more or less semi-globular head.
Acting on the plunger is a spiral or other suitably shaped spring always tending
to push the plunger towards the plunger path or plunger holes.
The method of actuating the bolt is as follows:-
On what will be termed for the sake of description the underside of the bolt,
but which however may be placed in any suitable position is what will hereinafter
be termed a striking peg the travel of this striking peg is regulated by
"
2
stops at certain required points.
To actuate this lock a lock key is used of any of the well known shapes,
the name of the part of the key that acts upon the engaging parts of the lock
is termed the "bit" and in this are cut certain shapes or wards which are arranged
in suitable angular directions as regards the stem of the key.
These wards in the key engage with certain wards or engaging parts in the
lock, these engaging parts in the lock and key may be made to resemble certain
letters in the alphabet or other devices.
1007
1000
WM. LLEWELLIN, C.E.,
15, King Square, Bristol, Agent for Applicant.

page_text: I, THE HONOURABLE ROBERT WILLIAM HENRY RODNEY, The Parks, Thornbury,
Gloucester, Gentleman, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
My invention relates to improvements in locks and has for its object the
simplifying the mechanism of the same.
In order that my invention may be clearly understood. I annex hereto one sheet
of drawings which are to be taken and read as part of these presents.
Figure 1: Shows a sectional 'elevation of the arrangement
Figure 2. Is an elevation partly in section showing the key in its relation to
the ward.
:
RS is the bolt of any suitable shape and section and made of any suitable
metal or material F G are suitably shaped depressions into which the plunger C
fits between the depressions F G hereinafter called the plunger holes is a double
inclined path X X the plunger C is kept in the depressions or plunger holes
and on the inclined path X X by means of the spring E the spring E is coiled
round a guide spindle D which spindle works through a suitable hole D' in the
casing A this guide may not in all cases be needful in which event the
spindle D is done away with and the spring F butts against the closed end Y
in the same way as the Spring T butts against the closed end 0 and the end of
the bolt at S.
R is that end of the bolt that engages with "the striking plate or other
equivalent in the jamb or any other part it is desired that the bolt of the lock
should engage with AQP are portions of the casing in which the bolt is fixed
and works to and fro.
Tis a projection attached to the bolt R S and will be hereinafter called the
striking peg. L is the bit of the key. J is the hollow end of the key which fits
on the pin H which pin is attached to the casing N. M is a stop or ward fixed to
the casing N and which fits a corresponding chase or space in the bit of the
key. K is the shank of the key the wards may be of various shapes as may be
deemed desirable for example they may be made to resemble certain suitable
letters or other shapes.
"
The method in which this lock works will now be described.
Figure 1 shows the lock in a position with the bolt
"shot or
locked supposing it is desired to unlock the bolt the hollow end of
the key has the pin H inserted in it and the bit of the key
turned until it occupies the position shown in Figure 1 at L butting against T¹
and is then again turned in the direction of the arrow V and in so doing carries
with it the bolt R S at the same time the plunger slides up and down the
inclined path X X and finally rests in the plunger hole F and is kept in that
position by means of the spring E. The spring T tends to keep the bolt S R
in a "shot" position. When the bolt has to be locked the reverse action to
that just described takes place.
Having now particularly described and 'ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is:-
Claim The method of actuating the bolts of locks in the manner as herein-
before set forth and described.

page_text: 2 The use of a plunger kept in position by a spring or springs to fix the
bolt in certain positions as required in the manner as herein set forth and
described.
3. The use of a key shaped in the manner as herein set forth and described
in connection with a striking pin attached to the bolt also in the manner as
herein set forth and described.
Dated this 13th day of December 1899.
WM. LLEWELLIN, C.E.,
15. King Square, Bristol, Agent for Applicant.