AN IMPROVED LOCK, TO BE USED EITHER SEPARATELY OR IN COMBINATION WITH A BOLTING ARRANGEMENT
Year: 1879

page_text: PROVISIONAL SPECIFICATION left by Moss Samuel Cohen and Henry
Mauthé at the Office of the Commissioners of Patents on the 21st April
1879.
Moss SAMUEL COHEN, of Saint John's Wood, in the County of Middlesex, and
HENRY MAUTHÉ, of Euston Road, in the said County, Civil Engineer.
" AN
IMPROVED LOCK, TO BE USED EITHER SEPARATELY OR IN COMBINATION WITH A
BOLTING ARRANGEMENT."
This Invention which relates to an improved lock to be used either separately or
in combination with a bolting arrangement, has for object the construction of such
an article by means of which an efficient and secure fastening is obtained, and one
which it is impossible to open by picking or with a false key.
Our improved lock is applicable to desks, jewel-cases, despatch boxes, deed-boxes,
and the like, also to the doors of buildings, iron-safes, wardrobes, book-cases, and
indeed to all articles or objects which are fastened by locks.
Our improved lock when used separately consists of two working members or
pieces, viz., a recessed piece or plug, and a tubular piece which effects the movement
of the bolt.
The recessed piece or plug, works in a socket formed on the outer plate of the
lock case, and into its recess is fitted a coiled spring, one end of which abuts against
the said outer plate. This recessed plug is furnished on its outer face with pro-
jections, against which the key (of special construction) abuts when introduced
for the purpose of operating the bolt. It is guided in its travel by wings.
On the inner plate of the lock case is another socket; it is diametrically opposite
to the first named one, and between these sockets works the second working
member which is a slotted tubular piece furnished with a cam for operating the
bolt. This tubular piece on one end fits telescopically on the socket on the inner
plate, and on its other end it has an inward flange or rim which is slotted to
correspond with the projections on the recessed plug and into which they fit.
The key for this lock has a solid barrel, the end of which is furnished with
projections which abut against the projections on the recessed plug; it has also
a bit.
The working is as follows :-On the key being introduced its bit enters the slot
in the tubular piece, and its projections abut against the corresponding projections

page_text: on the recessed plug which it depresses until stopped by the bit and projections
arriving at the end of their travel, the recessed plug now being removed from the
tubular piece into which it engaged; the said projections on the key fit into its
place, and as the key is turned in the usual manner its bit and projections force
the tubular piece to revolve, which brings its cam into contact with one of two
projecting pieces formed on a bar carrying the bolt, which it shoots forward and
effects the fastening. The other projecting piece is operated on by the cam on its
return movement in order to withdraw the bolt and effect the opening. On the
key being withdrawn the recessed plug is restored to its normal position by the
coiled spring.
In order to adapt our improved lock for use in combination with a bolting
arrangement, other than its bolt proper, we key on the slotted tubular piece a
pinion in gear with and operating two racks, one on either side thereof; these racks
pass through the case of the lock and terminate at their outer ends in bolts. On
the tubular picce being turned by the key, as herein before stated, the pinion is
rotated thus causing one rack and its bolt to be shot upward and the other
downward.
Our improved lock combined with this bolting arrangement as set forth is
especially applicable to the doors of buildings, iron-safes, wardrobes, and book-cases;
but it may also be used with advantage for jewel-cases, deed-boxes, and despatch-
boxes, where additional safety is necessary, the bolts being operated at the same
time as the bolt proper, one of which enters an orifice in the lintel of the door, or a
socket thereon, or in the upper portion of the article to which it is applied, while
the other enters an orifice in the flooring or in the lower portion of the article,
the bolt proper at the same time entering its orifice staple or box on the jamb.
When this combined lock and bolting arrangement is applied to the door of a
building, and when it is desired to fasten such door from the inside, the recessed
plug is provided with a button and either of the bolts with a knob. The button
inust be drawn outward so as to release the plug from the tubular piece which is
now free to revolve, and the bolts are actuated simultaneously by pushing the
knob, the key not being needed to fasten the door.
By keying a second toothed pinion on the tubular piece a second set or system
of rack bolts may be made to work horizontally while the other works vertically
or by toothing the tubular piece a third set or system of rack bolts may be made
to work obliquely and at the same time.