Improvements in and connected with Flap Hinges.
Year: 1898

page_text: Date of Application, 2nd May, 1898
Complete Specification Left, 7th Oct, 1898-Accepted, 10th Dec., 1898
PROVISIONAL SPECIFICATION.
Improvements in and connected with Flap Hinges.
We, ALFRED LEWIS STANSBURY, of 36, Reedworth Street, Kennington,
Gentleman, and JAMES WHITE, of 11, Harper Street, New Kent Road, Engineer,
both in the County of Surrey, do hereby declare the nature of this invention
to be as follows:-
The object of this invention is to construct hinges for cellar counter and other
flaps trap doors and the like in such a manner as to prevent an open flap or door
from being accidentally closed thus avoiding injury to persons under or near the
said flaps.
Now according to this invention we form in one with the strap or straps which
are secured to the underside of the flap a piece of metal having two lugs thereon
through which lugs passes a pin having a catch piece or tumbler oscillating
thereon.
This tumbler is heavier at the lower end than at the upper end thereof which
upper end is formed into a trigger or finger press by means of which the tumbler
may be oscillated on the pin. When the flap or door is open the tumbler engages
with a slot in the portion of the hinge which is secured to the frame of the door
or flap or to the counter and prevents the flap or door being accidentally closed.
The two portions of the hinge may be attached to each other by means of a pin
passing through lugs on the two portions of the hinge or by means of a pin and
eyes in the usual way.
When the flap or door is opened the tumbler automatically falls into the slot
and when it is desired to close the door or flap the trigger or finger press is
pressed and the tumbler raised until it is clear of the slot when the door or flap
may be closed in the usual way.
1000
T. E. HALFORD,
11, Furnival Street, London, E.C.,
Agent for Applicants.
Improvements in and connected with Flap Hinges.
We, ALFRED LEWIS STANSBURY, of 36, Reedworth Street, Kennington,
Gentleman, and JAMES WILTE, of 11, Harper, Street, New Kent Road, Engineer,
both in the County of Surrey, 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 obiect of this invention is to construct hinges for cellar, counter, and other

page_text: flaps, trap doors and the like in such a manner as to prevent an open flap or door
from being accidentally closed, thus avoiding injury to persons under or near the
said flaps.
And, in order that the nature of our improvements may be the more readily
understood we have appended the accompanying explanatory drawing in which
Figure 1 is a perspective or general elevational view of the improved flap hinge
constructed according to our invention, and Figures 2 and 3 transverse sections,
shewing respectively the flap or trap door in the closed and open positions. Like
letters of reference denote corresponding parts in the several views.
Now, according to this invention, we form in one with the strap or straps which
are secured to the underside of the flap A a piece of metal a having two lugs b
thereon through which lugs passes a pine having a catch piece or tumbler B
oscillating thereon. This tumbler B is heavier at the lower end d than at the
upper end e thereof, which upper end e is formed into a trigger or finger press
by means of which the tumbler B may be oscillated on the pin c.
When the flap A or door is open as seen more particularly in Figure 3 the
tumbler B engages by its lower end d with a slot f in the portion g of the hinge
which is secured to the frame C of the door or flap or to the counter, and prevents
the flap A or door being accidentally closed.
The two portions a, g, of the hinge may be attached to each other by means of
a pin passing through lugs on the two portions of the hinge or by means of a
pin and eyes in the usual way.
When the flap A or door is opened the lower weighted end d of the tumbler B
automatically falls into the slot f, and when it is desired to close the door or
flap the trigger or finger press e is pressed and the tumbler B raised until the
end d is clear of the slot f when the door or flap A may be closed in the
usual way.
We wish it to be understood that we do not confine our invention to the precise
details described herein or the exact construction shewn in the drawings as it is
obvious that various modifications may be resorted to without departing from
the principle and characteristic features of our said invention.⚫
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:-
First. The improvements in and connected with hinges for cellar, counter and
other flaps, trap doors and the like substantially as herein set forth and shown
and for the purposes specified.
Second. In a hinge intended for use with cellar, counter and other flaps, trap
doors and the like the employment and combination with the two hinge plates
of a weighted pivotted catch or tumber B so constructed arranged and operated
that when desired the flap or door can be retained in the open position all as
herein described and substantially as shewn in the accompanying drawings.
Third. As a means for automatically retaining a cellar, counter and other flap,
trap door or the like in position when opened the employment of a weighted
pivotted catch or tumbler B constructed, arranged and operated substantially as
herein described and shown.
Dated this 26th day of September 1898.
A. L. STANSBURY,
JAS. WHITE,
By Benj. T. King, A.I.M.E., Registered Patent Agent by Examn.,
165, Queen Victoria Street, E.C., Agent for Applicants.