IMPROVED CONSTRUCTION OR ARRANGEMENT OF MORTICE LOCKS AND IN THE METHOD OF FITTING THEM IN POSITION
Year: 1883

page_text: LETTERS PATENT to Alfred Willmer Pocock of 15 Spencer Road Wandsworth
in the County of Surrey Engineer for an Invention of IMPROVED
CONSTRUCTION OR ARRANGEMENT OF MORTICE LOCKS AND IN THE METHOD
OF FITTING THEM IN POSITION
PROVISIONAL SPECIFICATION left by the said Alfred Willmer Pocock at
the Office of the Commissioners of Patents on the 16th February 1883.
ALFRED WILLMER POCOCK of 15 Spencer Road Wandsworth in the County of
Surrey, Engineer. *" IMPROVED CONSTRUCTION OR ARRANGEMENT OF MORTICE
LOCKS AND IN THE METHOD OF FITTING THEM IN POSITION
"
The object of this Invention is the construction or arrangement of mortice locks
with spring catch in one compartment or box separate from that in which the bolt
lock is contained said two compartments forming distinct boxes and held at a fixed
distance apart by the face or edge plate which is of such a thickness as to give
solidity and is shaped in conjunction with that of the two boxes as to be readily
pushed into holes which can be drilled in the wood and then fixed in position by a
single screw pin, which passes through the face plate between the two boxes, into
the solid wood.
Instead of the two boxes being fitted to the same face or edge plate one box only
may be so arranged which box may either be the spring catch box or the bolt lock
box which box is fitted at one end of the face plate to enable the screw pin which
secures it to the door to be passed into the solid wood, the face plate in this as in
the previously mentioned double box lock may have both the ends rounded to fit
correspondingly shaped holes in the edges of the door, said holes being drilled to
the depth of the thickness of the face plate so that it lodges snugly therein without
necessitating the use of a chisel to clear out the corners as with square or
rectangular shaped faced locks.
By this invention the fitting of mortice locks in doors is much expedited and
simplified. The screw pin I "set" in its hole in the face plate that it serves while
being turned to draw the lock home and to free the lock and move it a sufficient
distance as to be readily withdrawn by hand if desired.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Alfred Willmer Pocock in the Great Seal Patent Office on the
16th August 1883.
ALFRED WILLMER POCOCK of 15 Spencer Road Wandsworth in the county of
Surrey Engineer IMPROVED CONSTRUCTION OR ARRANGEMENT OF MORTISE LOCKS
AND IN THE METHOD OF FITTING THEM IN POSITION
The object of my invention is First to so construct a mortice lock that the bolt
shall be contained within a box or barrel of its own and the latch in a separate
box or barrel the two boxes or barrels being connected to one front plate so as to
be virtually one lock.
Secondly To construct a mortice lock or latch so that it can be drawn into position
in an aperture provided for it by a screw pin so attached to the lock as to be parcel
of the same, said screw serving also when turned in the proper direction to with
draw the lock or latch from the door.
My invention is clearly shown in the annexed drawings in which Figure 1 is a
section of the two boxes or barrels A, B, contain the bolt C and catch D
respectively. E is the face plate or front of the lock to which the two boxes or
barrels are attached or in a piece with.
Figure 2 shows a similar double barrelled mortise lock F being a screw pin
whose head G is sunk or recessed into the plate E as to be flush therewith. The
Screw pin is pierced in the stem for the reception of a wire or other device to
fasten it to the face plate and to allow of it being turned by a screw driver when
desired. His a washer to facilitate the turning operation but this washer may be
dispensed with.
Supposing the aperture to be made (preferably augured out) in the door to the
desired depth the lock is pushed in until the point of the screw enters the wood.
The screw is then turned and forced in which causes the lock to be drawn in and
the front plate to be flush and level with the edge of the door.
Figure 3 shows a single box or barrelled lock with the screw F affixed in a
similar manner and for the same purpose; this may have a catch bolt if desired in
place of a locking bolt.
Figure 4 represents an ordinary mortice lock in which my screw pin is
arranged.
Having now described the nature of my said invention and in what manner the
same is to be performed I declare that I claim.
First The construction of mortice locks with two distinct boxes or barrels but
connected by a face or front plate as described and substantially as shown
at Figure 1 in the annexed drawings
Secondly I specially claim The particular construction of double box or double
barrelled lock with screw pin as shown at Figure 2 of the annexed
drawings
Thirdly I claim The employment of a single screw pin in and as part of a mortice
lock to facilitate the introduction and fixture and the withdrawal of said
locks as described.
Fourthly I claim The single barrel or single box mortise lock with screw pin,
Figures 3 and 4, as and for the purposes described.
In witness whereof I the said Alfred Willmer Pocock have hereunto set my
hand and seal this eleventh day of August in the year of our Lord One thousand
eight hundred and eighty three
.
WTT TUDD