Improvements in Handles for Operating Locks or Latches.
Year: 1890

page_text: May, 1800 Accepted, 12th July 1800
Date of Application,
17th Mov
COMPLETE SPECIFICATION.
Improvements in Handles for Operating Locks or Latches.
I, NIELS GEORG SÖRENSEN of Blasieholmstorg 11, Stockholm in the Kingdom of
Sweden, Merchant, 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
My invention relates to a handle for locks which consists of two peculiarly shaped
pieces one of which is fixed to the door and the other movable, the two being pivoted
together so as to form a device which when grasped and pressed together will perform
the desired operation and at the same time allow the hand a steady support.
My said invention will be hereinafter. fully described with reference to the
accompanying drawings, in which
Figure 1 represents an elevation of the handle.
Figure 2 is a front view of the same.
Figures 3 and 4 show cross-sections at the lines a b and c d respectively.
Figures 5 and 6 show a sectional and a front view of a modified arrangement of the
handle and
Figures 7 and 8 cross sections at the lines ef and g h respectively.
My invention relates principally to such locks and latches as have gravity bolts but
it may also be applied to locks with the usual horizontal bolt if the handle is
placed in a position divergating 90" from the one shown in the drawing.
The handle is fixed to the door by the plate A. From this projects a bracket-shaped
piece A¹, which piece is prolonged into a downwardly turned arm A2. B B is the
movable part of the handle which as shown on the drawings is made somewhat concave
so as to better embrace the part A A¹. The fixed part A¹ A² is joined to the movable
part B B by a pivot D. The movable part has an arm C which projects into the lock
and acts either directly upon the bolt lever or upon the bolt itself thus disengaging
the latch bolt from its socket when the handle is made to act.
The bandle once fitted to the door will when grasped and pressed together by the
hand, cause the movable arm B₁ to embrace more fully the fixed part A thus giving
a pivoting movement to the arm C and causing it to act on the latch bolt or latch
bolt lever in the desired direction. It is evident that the external shape of the
handie can be altered and modified for instance the movable part need not necessarily
be made concave, but may be made of any other convenient shape such as that of
a leaf placed above and in front of the fixed part in which case this latter part
may be made to swell out into the shape of a pear or a pendant drop.
It is also evident that wherever required for instance for locks on railway
vehicles or on front doors in cold climates a cap E may be placed over the horizontal
part of the movable arm which cap can either be fixed on the door or on the
immovable part of the handle or on both door and handle.
The object of such a cap being to exclude snow and rain. If desired the pivot
for the movable part of the handle may be fixed in the said cap (as shown in
Figure 5) and it is obvious that the cap also could be made so as to extend some
distance down on the vertical part of the handle B¹.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
A handle for locks consisting of two parts, one of them fixed to the door and the
other movable, the arms of which are so placed that the arms A or B are approxi-
mately at right angles to the door while the other arms A² or B' are approximately
parallel with the said door the two parts being connected by a pivot D in such a

page_text: manner that the arms B' and B, that is to say, the movable part which is provided
with a prolonged arm Centering into the lock are placed respectively in front of and
above the arms. A and A' of the immovable part so that the arm B' of the movable
part on being pressed by the hand moves towards the door thus causing the arm C
to disengage the latch-bolt from its socket.
Dated this 17th day of May 1890.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicant.