Year: 1897

page_text: We, JOHN LANDON FISKE, Maker of Lubricants, and GUSTAF LIBERT
REENSTIERNA, Inventor, both of 10, Federal Street, Boston, Mass, U.S.A., do
hereby declare the nature of this invention to be as follows:-
The object of this invention is to provide a hinge which will retain a door,
window or the like in any desired position when opened.
The invention consists of a suitable casting secured to the door post, or window
casing, and retaining a pin mounted vertically therein. Two discs are mounted
on the pin and have teeth on their meeting faces.
A rod or spindle is rotatably mounted in the frame of the window or door and
has a projecting end formed with a cam which enters between the discs. A
handle is secured to the spindle to enable it to be partially rotated.
When the door or the like is opened the teeth of the discs will ride over each
other and engage when the door is released in any position. A partial rotation
of the spindle and cam serves to separate the discs. and disengage the teeth thereby
permitting the door or the like to be closed.
P. R. J. WILLIS,
Agent for Applicants.
We, JOHN LANDON FISKE, Maker of Lubricants, and GUSTAF LIBERT
REENSTIERNA, Inventor, both of 10, Federal Street, Boston, Mass, U.S.A., 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:-
―
The object of this invention is to provide an improved hinge of that class
which enables a door, window, shutter, gate or the like to be retained in an open

page_text: position at any desired angle, and to provide a hinge of the sort which is cheap
to manufacture, easily manipulated, weatherproof and not likely to get out of
order.
Reference being had to the drawings hereunto annexed:-
Figure 1 represents a side view of our improved hinge in section. Fig. 2 is
a top plan view of the upper portion of the hinge, and Fig. 3 is a top plan view
of the under side thereof; Fig. 4 is a plan shewing the upper side of the lower
part of the hinge, and Fig. 5 is a plan shewing the under side thereof. Fig. 6 is
a side elevation of a key for operating the hinge.
The hinge comprises an upper part 1 and a lower part 2. The upper part
consists of a disc 3 having an annular flange 4, of sufficient depth to cover the
peripheral edge of the disc 10 when the disc 3 is raised or lowered as hereinafter
described; a socket piece 5, connected by a web 6 to the screw plate 7; an
annular row of teeth 8 on the underside of the disc 3; and a slot 9 in the
flange 4.
The lower part 2 comprises the disc 10, provided on its upper surface with an
annular row of teeth 11; an upwardly and concentrically arranged pin 12 adapted
for engagement in the socket 5; and a screw-plate 13 strengthened by the
web 14.
The upper part 1 is attached by screws 15 to the door, window or the like 16,
the frame of which has a slot 17 to enable the shank 18 of the key 19 to pass
through it. The key being journalled in the frame at right-angles to the slot as
shewn at 20, projects through the slot 9 in such manner that its flattened or cam-
shaped end 21 rests upon the upper surface of the disc 10 when the lower part is
secured to the door or like post 22 by screws 23.
It will be understood that so long as the teeth and 11 are in engagement, as
shewn, the door or the like will remain at any angle; but that when the shank 18
is depressed and the key 19 partially rotated its cam-shaped end 21 will bear
upon the lower part and raise the door or the like and the upper part so that the
teeth are disengaged to permit the door or the like to be set at any angle, opened,
or closed.
By making the teeth to slant, after the manner of saw teeth, they are enabled to
ride over each other when the door or the like is opened, and be disengaged to.
close the door by means of the key as aforedescribed.
It will be noticed that the whole of the working parts of the hinge are enclosed
by the flange 4 in whatever position the upper part 1 may be, so that rain,
dust, etc., is thereby excluded from the interior.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is:-
:-
(1) A lock-hinge comprising an upper part and a lower part, the upper part
consisting of a disc having an annular flange adapted to project over the disc of the
lower part, a slot in the flange, a socket piece connected by a web to a screw plate
adapted for attachment to the window, door, shutter, gate or the like, an annular
row of teeth on the under side of the disc, and the lower part consisting of a
disc having on its upper surface an annular row of teeth, an upwardly and con-
centrically arranged hinge-pin adapted for engagement with the socket piece of
the upper part, a screw-plate adapted for attachment to the door-post, window-
frame or the like, and means, such as a cam-headed key, for operating on the lower
part and pivoted to the window, door, shutter, gate or the like, in such manner
as to disengage the teeth on the upper and lower parts respectively, all sub-
stantially as and for the purposes hereinbefore set forth and illustrated in the
drawings hereunto annexed.
(2) In a hinge as herein before described and claimed, the teeth of said hinge
made slanting and adapted for engagement in such manner that they will ride

page_text: over each other when the parts are rotated in one direction but will engage when
released, substantially as and for the purposes herein before set forth and illustrated
in the drawings hereunto annexed.