Improvements in Latch Locks.
Year: 1898

page_text: Improvements in Latch Locks.
I, HENRIK LORENZEN HAMMER, of Tillinge, Timmernabben, in the Kingdom of
Sweden, Inventor, do hereby declare the nature of this invention to be as
follows:-
This invention has for its object in latch locks with a connection capable of
being released between the handle spindle and the latch, the arrangement of
of a toothed bolt, bar or pin engaging in radial perforations in the handle spindle
and the tumbler, which bolt or pin may be moved by means of a key provided with
teeth for the purpose of connecting and disconnecting the tumbler with the
handle spindle.
In the accompanying drawings,
Figure 1 is a side view of the lock, with the side plate supposed to be removed.
Figure 2 is a cross section on the line a-b of Figure 1.
Figure 3 is a plan view of Figure 1.
Figure 4 the key-hole cover.
The tumbler 1 is mounted in the side plates 2 and 3 and provided above or
at top with a hook 4 which engages in an opening or recess in the latch 5.
The tumbler has also two holes 6 and 7, one of which 6 corresponds on one side
with suitable holes in the side plate 2 and in the keyhole cover 8 and the other 7
with holes on the other side in the side plate 3 and keyhole cover 9.
The
The handle spindle 10 which is of an even thickness and round form passes
through the tumbler, the wood of the door, and the keyhole shield or cover.
tumbler is provided longitudinally from its upper end to the handle spindle with
a bore 11. in which a bolt or pin 12 is vertically and movably arranged so that it
may be inserted in a recess 13 in the handle spindle. Teeth are formed on
the bolt or pin 12 like a rack in which the teeth of the key 14 engage. The
said key may be inserted from either side as shown in Figure 2. The tumbler 1
has also a hole 15 filled up with a piece of indiarubber which retains the steel
pin 12 in its different positions by friction. Under the keys 14 there are also
arranged pieces of indiarubber 16 inserted in recesses to retain the keys in the
desired positions. 17 indicates a spring which forces the latch 5 outwards and 18 is.
a screw for connecting the side plates.
In the drawing, the bolt or pin 12 is shown inserted in the hole or recess 13
of the handle spindle so that the latter works in the ordinary manner to open
and close the latch. If the door is to be locked the bolt or pin 12 is raised
out of the recess 13 by turning the key. whereupon the handle may be turned but
without drawing back the tumbler 1 and the latch 5. The key may thus be used as
an ordinary key and also as a bolt.
n
1
003 1 T..1.. 1908

page_text: I, HENRIK LORENZEN HAMMER, of Tillinge, Timmernabben, in the Kingdom of
Sweden, Inventor, 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 has for its object in latch locks with a connection capable of
being released between the handle spindle and the latch, the arrangement of
a toothed bolt, bar or pin engaging in radial perforations in the handle spindle
and the tumbler, which bolt or pin may be moved by means of a key provided with
teeth for the purpose of connecting and disconnecting the tumbler with the
handle spindle.
In the drawings accompanying the Provisional Specification,
Figure 1 is a side view of the lock, with the side plate supposed to be removed.
Figure 2 is a cross section on the line a--b of Figure 1.
Figure 3 is a plan view of Figure 1.
Figure 4 the key-hole cover.
The tumbler 1 is mounted in the side plates 2 and 3 and provided above or
at top with a hook 4 which engages in an opening or recess in the latch 5.
The tumbler has also two holes 6 and 7, one of which 6 corresponds on one side
with suitable holes in the side plate 2 and in the keyhole cover 8 and the other 7
with holes on the other side in the side plate 3 and keyhole cover 9.
The
The handle spindle 10 which is of an even thickness and round form passes
through the tumbler, the wood of the door, and the keyhole shield or cover.
tumbler is provided longitudinally from its upper end to the handle spindle with
a bore 11. in which a bolt or pin 12 is vertically and movably arranged so that it
may be inserted in a recess 13 in the handle spindle. Teeth are formed on
the bolt or pin 12 like a rack in which the teeth of the key 14 engage. The
said key may be inserted from either side as shown in Figure 2. The tumbler 1
has also a hole 15 filled up with a piece of indiarubber which retains the steel
pin 12 in its different positions by friction. Under the keys 14 there are also
arranged pieces of indiarubber 16 inserted in recesses to retain the keys in the
desired positions. 17 indicates a spring which forces the latch 5 outwards and 18 is
a screw for connecting the side plates.
In the drawing, the bolt or pin 12 is shown inserted in the hole or recess 13
of the handle spindle so that the latter works in the ordinary manner to open
and close the latch. If the door is to be locked the bolt or pin 12 is raised
out of the recess 13 by turning the key, whereupon the handle may be turned but
without drawing back the tumbler 1 and the latch 5. The key may thus be used as
an ordinary key and also as a bolt.
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. A latch lock having a connection, capable of being released, between the
handle spindle and the latch, characterized by the arrangement of a toothed bolt or
pin in radial perforations in the handle spindle and the tumbler, which bolt or
pin is adapted to be moved by means of a key provided with teeth for the purpose
of connecting and disconnecting the tumbler with the handle spindle, substantially
as described.
2. A form of construction of the described arrangement of latch lock character-

page_text: ized by pieces (15 and 16) of indiarubber or the like being arranged for the pin (12)
and the keys (14) in order to retain the pin & keys in the desired positions,
substantially as described.
Dated this 10th day of An
1800
WM. P. THOMPSON & Co.,
Patent Agents, of Liverpool, Manchester, Birmingham and London.