improvements in Wedges for Fastening Doors and Windows.
Year: 1895

page_text: Date of Application, 4th Mar:, 1895
Complete Specification Left, 14th June, 1895-Accepted, 27th July, 195
improvements in Wedges for Fastening Doors and Windows.
We, RICHARD JAMES THRELFALL of 7, Belgrave Terrace, Gateshead, and
JOHN DOVE, of 1 West View, Gateshead, in the County of Durham, Engineers,
do hereby declare the nature of this invention to be as follows:-
This wedge is specially adapted for application to the bottoms of doors, but is
also applicable to windows of a certain class.
It consists of a wedge shaped piece of steel, having two projecting prongs on
bottom side, at thickest end, which are sharpened, the small end of wedge and sides
being rounded, and top face V-grooved or fluted longitudinally, and automatically
prevents the opening of a door or removal of wedge to effect the same from any
person without.
The wedge is adjusted by occupant of room, closing the door and pressing it
tightly into position between the bottom of door and floor by pressuro from hand
or foot; the two prongs sinking slightly into floor and preventing end movement,
while the grooves on top face, prevent the removal of the same laterally; the
rounded end and edges, present a difficulty to removal by a process of drifting.
When the door requires to be opened by occupant, the wedge can be readily
withdrawn by a slight movement sideways, given to it by hand or foot, till free.
Dated this 2nd day of March 1895.
R. J. THRELFALL.
JOHN DOVE.
WWD,
We, RICHARD JAMES THRELFALL, of 7, Belgrave Terrace, Gateshead, and
JOHN DOVE, of 1 West View, Bensham, Gateshead, in the County of Durham,
Engineers 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 :-
Our invention is specially adapted for application to the bottoms of doors, but is
also applicable to windows. It consists of a wedge-shaped piece of steel or other
suitable metal, having projecting prongs on bottom side at thickest end, at an
angle, preferably an acute onc, three prongs being preferable with the middlo one
slightly longer than the rest, and are sharpened.
The small end of wedge is bevelled on under side, and rounded ou end, the top
face or upper surface is V-grooved or fluted longitudinally. This wedge shaped
piece of metal is also provided with a projection on each side of thickest end to
facilitate withdrawal, and automatically provents the opening of a door or window,
or removal of wedge to effect the same purpose by any person from without. The
dovice is adjusted into position by occupant closing the door or window, and
pressing it tightly between the bottom of door and floor, or between the two window
sashes, as the case may be, by pressure applied by foot or hand, the prongs sinking
simultaneously to a small extent into the wood, and thus preventing end movement,
[Pi]

page_text: while the grooves or flutings on the upper face prevent the removal of the wedge in
a lateral direction, the rounded ond and edges preventing the same being driven out
of place. When the door or window requires opening by the occupant, the wedge
can be readily and easily extracted.
DESCRIPTION OF DRAWINGS.
On the accompanying sheet of drawings, three views of our invention are shown.
Fig. 1. is a side elevation.
Fig. 2. is an end elevation looking at the thick end of wedge.
Fig. 3. is a plan of the same.
Like letters indicate corresponding parts, throughout the drawings.
Referring to Fig. 1. A is a side view of the projecting prongs, also a side view
of fintings D, and the bevelled and rounded end is shewn in side elevation at C.
In Fig. 2. the middle prong B is shewn slightly longer than the rest, at D is
shown an end elevation of the flutings.
In Fig. 3. the grooving or Auting is shewn which extends in a longitudinal
direction. At Eis shewu the projections to facilitate withdrawal. C is the plan of
rounded ond.
Having now particularly described and ascertained the nature of our said inven-
tiou, and in what manner the same is to be performed, we declare that what we
claim is :-
1. An implement or apparatus of the kind or class herein before referred to, with
projecting prong or prongs at large end.
2. Longitudinal flutings on top face.
3. Rounded and bevelled small end of apparatus.
4. The two projectious on each side of large end to facilitate withdrawal, in
combination with the above.
Dated this 13th day of June 1895.
RICHARD JAMES THRELFALL,
JOHN DOVE,
Applicants.