An Improved Screw Wedge.
Year: 1891

page_text: Date of Application, 4th Sept., 1891
Complete Specification Left, 31st May, 1892-Accepted, 30th July, 1892
An Improved Screw Wedge.
I JOHN VAUGHAN of High Street Hartley Wintney in the County of Hants
Painter and Decorator do hereby declare the nature of this invention to be as
follows:-
Wedges are now frequently used to jam and temporarily secure in a given position
a moving or swinging article or object as for example a door for purpose of painting
or otherwise.
The object of my invention is to provide a simple and cheap appliance for this use
and wherein the wedge can be adapted easily to the particular article or object that
it is desired to jam and the space wherein such action is to be effected while the
desired jamming can be very securely and surely created with a minimum of cross
or other strain on the affected parts.
To carry out this object I take two preferably somewhat similar strips or long
flat plates of iron or other metal or material and I joint together in any convenient
manner these strips at one of their ends in such wise that the one strip can lie flat
on the other strip. A suitable method of jointing consists in turning up the end of
the lower strip at right angles or thereabouts and making a slot in this turned up
end close to the angle through which slot the similarly turned up end of the other
strip can be passed. Through the free end of the upper strip passes a long thumb
or other screw the lower end whereof abuts against or is mounted securely in the free
end of the lower strip.
These two strips so fitted constitute the sides of the wedge the included angle
thereof being obviously capable of being enlarged to securely jam the door or other
article or object by properly turning the screw and of being diminished to release
the same by turning the screw in the opposite direction.
TTDT P
Dated this 4th day of September 1891.
COMPLETE SPECIFICATION..
An Improved Screw Wedge.
I JOHN VAUGHAN of High Street Hartley Wintney in the County of Hants
Painter and Decorator 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:—
Wedges are at the present time very frequently used to jam and temporarily
secure in a given position a moving or swinging article or object such for example
as a door for purposes of painting or otherwise.
Now the object of this my invention is to provide a very simple and cheap
appliance for this use the more especially although it is also capable of and suitable
for being used for many and various other purposes and objects and according to
my invention this improved screw wedge can be adapted easily and quickly to the
particular article or object that it is desired to jam and temporarily secure in a
given position having respect to the space wherein such action is to be effected
while at the same time the desired jamming can be very securely and surely created
and produced with a minimum of cross or other strain on the affected parts.
In order the more clearly to explain this my invention and in what manner the
same is to be performed I refer to the accompanying drawing wherein
Figure 1 is a side elevation of one and perhaps on the whole the most preferable
form and style of construction and arrangement of my improved screw wedge.
ID 71

page_text: Two somewhat similar strips or long rather narrow flat plates A and B are made
of iron or other suitable metal or material and these two strips A and B are jointed
or hinged together at one of their ends in any convenient and usual or other manner.
In Figure I a most convenient and suitable arrangement is shewn wherein the
end D of the lower strip B is for a certain desired length turned up at right angles
or thereabouts and a slot E is made in this so turned up end D close to the bend or
angle thereof, through which slot E the similarly and correspondingly turned up
end F of the upper strip A can be passed and wherein the same can work freely.
and easily. Through the other the free end of the upper strip A passes and therein
engages and works in the usual manner a long thumb or other screw H the lower
end of which screw H abuts against or is properly and securely mounted in an
ordinary socket on or in the free end of the lower strip B.
These two strips so constructed and fitted as hereinbefore described constitute
my improved screw wedge and the angle that the one strip or side of this wedge
makes with the other strip or side of this wedge is obviously capable of being
altered or of being enlarged and diminished when desired by turning the screw in
the proper direction.
When it is desired to use this screw wedge say for example with a door and
between the same and the floor the screw is so turned that the two strips are in
close proximity and make or describe as small an angle with each other as is
possible. Then when the apparatus is constructed with the turned up ends as
herein before described and shewn in the drawing these turned up ends of the strips
are passed under the door and up on the other side of the same until the lower strip
lies flat on the floor with the edge of the door above both the strips near the
position where they are hinged or jointed together or that is to say near the apex
of the isosceles triangle formed by these two strips and the screw and the great
advantage caused by the turned up ends of the strips is that they prevent the
apparatus being accidentally or unintentionally disengaged from the door or forced
out from under the same when the angle made or described by the two strips with
each other has been or is being enlarged by the screw. The screw is then turned
in the proper direction to enlarge the angle made or described by the two strips
with each other until the proper required pressure has been put on the door and the
satne is very surely jammed and secured in the desired position. When it is
.desired to release the door this procedure obviously is reversed.
In the same manner it is evident this screw wedge can be applied and used to jam
and temporarily secure in a given position other moving or swinging articles or
objects of a similar kind.
Figure 2 is a side elevation of another form and style of construction and
arrangement of my improved screw wedge wherein the lower strip B herein before
described is dispensed with and its place in this apparatus is taken and its functions
are performed by the floor or other fixed surface with which the apparatus is to be
used to jam and temporarily secure the door or other moving or swinging article or
object and in and for this apparatus it is most convenient that a suitable socket or
foot K should be provided for and fitted to the end of the screw H.
It is sufficiently obvious that the action of the apparatus according to this form
and style of construction and arrangement and the method of using the same are
precisely the same as are hereinbefore described and no further explanation is or can
be needed.
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
The improved screw wedge substantially as herein before described and shewn in
the accompanying drawing.