Improvements in or relating to Keys for Preventing the Picking of Locks.
Year: 1899

page_text: Date of Application, 9th June, 1899
Complete Specification Left, 9th Mar., 1900-Accepted. 14th Apr., 1900
PROVISIONAL SPECIFICATION.
Improvements in or relating to Keys for Preventing the Picking of
Locks.
I, JOSEPH RICILARD PARKER, 447, High Road, Willesden, Photographic Acces-
sory Maker, do hereby declare the nature of this invention to be as follows:-
This invention consists of improvements in or relating to keys, the object
being to enable the key to be secured in a lock in the required position for pre-
venting the surreptitious opening or picking of the lock. In carrying out my
invention I provide a rod or bar of suitable shape adapted to slide or travel in
a suitable bearing or guide carried upon the key, said rod or bar having a notch
or recess for engaging upon a suitable part of the bearing or guide, or I may
employ a projection upon the rod or bar aforesaid for engaging in a recess in
a suitable part of the bearing or guide attached to the key, I also provide a
spring of suitable shape which may be attached to the bearing or guide for the
purpose of facilitating the placing of the rod or bar in the required position in
the bearing or support upon the key. A set screw or thumb piece is provided
for the purpose of preventing the displacement of the rod or bar aforesaid.
•
The parts are so arranged that when the key has been placed in the lock, the
wards may be turned to a horizontal position and the bar or rod inserted the
required distance into the key hole, being locked and secured in this position
by means of the set screw or thumb piece before described, and the projection of
this rod or bar into the key hole is sufficient to prevent the insertion of a tool
or implement for picking the lock or removing the key therefrom.
Dated this 9th day of June 1899.
E. EATON,
Agent. for Applicant.
COMPLETE SPECIFICATION.
Improvements in or relating to Keys for Preventing the Picking of
Locks.
I, JOSEPH RICHARD PARKER, 447, High Road, Willesden, Photographic Acces-
sory Maker, 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: -
This invention consists of improvements in or relating to keys, the object
being to enable the key to be secured in a lock in the required position for pre-
venting the surreptitious opening or picking of the lock. In carrying out my
invention, I provide a rod or bar of suitable shape adapted to slide or travel in
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a suitable bearing or guide carried upon the key, said rod or bar having a notch
or recess for engaging upon a suitable part of the bearing or guide, or I may
employ a projection upon the rod or bar aforesaid for engaging in a recess in
a suitable part of the bearing or guide attached to the key, I also provide
spring of suitable shape which may be attached to the bearing or guide for the
purpose of facilitating the placing of the rod or bar in the required position in
the bearing or support upon the key. A set screw or thumb piece is provided
for the purpose of preventing the displacement of the rod or bar aforesaid.
The parts are so arranged that when the key has been placed in the lock, the
wards may be turned to a horizontal position and the bar or rod inserted the
required distance into the key-hole, being locked and secured in this position
by means of the set screw or thumb piece before described, and the projection of
this rod or bar into the key hole is sufficient to prevent the insertion of a tool
or iniplement for picking the lock or removing the key therefrom.
In order to illustrate the object of my invention, I will now refer to the
annexed drawings in which:-
Figure 1, shows a key-arranged according to my invention.
:
is the shaft which carries the wards b, and which also carries at a suitable
part thereof the bearing or guide c. This bearing or guide is provided with
a projection d adapted to engage with the recess e in the sliding rod or bar f..
-This sliding rod or bar f is operated upon by a spring g which I find it con-
venient to attach to the said sliding rod or bar fath for the purpose-of-facilitating
the engagement of the slot e in the rod or bar f with the projection d caused
upon the bearing c. The employment of this spring g performs an important
function as it will tend to arrest the movement of the sliding rod or bar when
it has arrived-at-its-locking-position, ciz. the engagement of the recess e in the
projection the set screw being also provided for the purpose of further
_securing the sliding rod or bar f in its locking position.
It will be seen that although I have described this controlling spring_g.as being
attached to the sliding rod or bar f, I might, without departing from the spirit
of my invention, attach this spring g to the bearing or guide c.
The thumb
screw is for the purpose of locking or securing the sliding rod or bar when
required. The bearing surface carrying the sliding rod or bar f may be so
attached and shaped as to enable it to be used as a means of turning the shank
or shaft carrying the wards of the key, thus taking the place of the ordinary key
head or ring.
U
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:-
1. In keys of the class herein described, the combined construction and arrange-
ment of the various parts, substantially as illustrated and set forth.
2. In means for securing keys and locks, a sliding rod or bar carried upon the
key in a suitable bearing, being adapted to be inserted in the key hole of the
lock or door after the wards of the key have been turned to the required position
preferably horizontal; a controlling spring attached to said sliding rod or bar
or bearing surface for the purpose of facilitating the engagement of the sliding
rod or bar with a projection upon the bearing and a recess on the said sliding
rod or bar or vice versa, a locking nut or thumb screw for maintaining the sliding
rod or bar in its locking position, all in combination and substantially as described
herein.