IMPROVEMENTS IN STOPS FOR GATES AND DOORS
Year: 1857

page_text: LETTERS PATENT to Andrew Scott, of 15, Charlotte Terrace, Copenhagen
Street, Islington, for the Invention of "IMPROVEMENTS IN STOPS FOR GATES
AND DOORS."
Scaled the 27th October 1857, and dated the 21st July 1857.
PROVISIONAL SPECIFICATION left by the said Andrew Scott at the
Office of the Commissioners of Patents, with his Petition, on the
21st July 1857.
I, ANDREW SCOTT, of 15, Charlotte Terrace, Copenhagen Street, Islington,
do hereby declare the nature of the Invention for "IMPROVEMENTS IN STOPS
FOR GATES AND DOORS," to be as follows:-
This Invention has for its object improvements in stops for gates and doors.
For these purposes the stop of a gate or door is arranged to rise and fall as
the gate or door is closed and opened, and at the same time a bolt is caused
to rise and fill the thimble or hole which receives the end of the upright bolt,
which fastens the gate or door when it is shut, by which the thimble or hole
is prevented becoming clogged when the gate or door is open; and this is
accomplished by a suitable combination of gearing contained in a box or case
fixed below the gate or doorway; and it is preferred to employ a descending
axis from the gate or door, having at its lower end a bevelled toothed wheel
which takes into another bevelled toothed wheel on a horizontal axis, which
by means of a toothed wheel acting in racks on the stop and on the rising
filling bolt, causes the stop to rise when the gate or door is being shut, and

page_text: at the same time causes the filling bolt to descend when the gate or door is
shut, and in like manner may the stop of a gate or door, against which it is
retained when open, be actuated so as to rise into position when the gate
or door is opened, and descend when shut; or, in place of the horizontal axis
above mentioned, the requisite motion to the pinion between the two racks
may be communicated by a lever action put in motion by the opening of the
mate or door to one of the racks.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Andrew Scott in the Great Seal Patent Office on the
21st January 1858.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ANDREW
SCOTT, of 15, Charlotte Terrace, Copenhagen Street, Islington, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-first day of July, in the year of our Lord
One thousand eight hundred and fifty-seven, in the twenty-first year of ITer
reign, did, for Herself, Iler heirs and successors, give and grant unto me, the
said Andrew Scott, Iler special licence that I, the said Andrew Scott, my
executors, administrators, and assigns, or such others as I, the said Andrew
Scott, my executors, administrators, and assigns, should at any time agree
with, and no others, from time to time and at all times thereafter during the
term therein expressed, should and lawfully might make, use, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN STOPS FOR GATES
AND DOORS," upon the condition (amongst others) that I, the said Andrew Scott,
my executors or administrators, by an instrument in writing under my, or
their, or one of their hands and seals, should particularly describe and
ascertain the nature of the said Invention, and in what manner the same
was to be performed, and cause the same to be filed in the Great Seal Patent
Office within six calendar months next and immediately after the date of the
said Letters Patent.
NOW KNOW YE, that I, the said Andrew Scott, do hereby declare the
nature of the said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement thereof, that is to say :-
This Invention has for its object improvements in stops for gates and doors.
For these purposes the stop of a gate or door is arranged to rise and fall as

page_text: the gate or door is closed and opened, and at the same time a bolt is caused
to rise and fill the thimble or hole which receives the end of the upright bolt,
which fastens the gate or door when it is shut, by which the thimble or hole
is prevented becoming clogged when the gate or door is open; and this is
accomplished by a suitable combination of gearing contained in a box or case.
fixed below the gate or doorway; and it is preferred to employ a descending
axis from the gate or door, having at its lower end a bevilled toothed wheel
which takes into another Levelled toothed wheel on a horizontal axis, which
by means of a toothed wheel acting in racks on the stop and on the rising
filling bolt, causes the stop to rise when the gate or door is being shut, and
at the same time causes the filling bolt to descend when the gate or door is
shut, and in like manner may the stop of a gate or door, against which it is
retained when open, be actuated so as to rise into position when the gate
or door is opened, and descend when shut; or, in place of the horizontal axis
above mentioned, the requisite motion to the pinion between the two racks
may be communicated by a lever action put in motion by the opening of the
gate or door to one of the racks.
Having thus stated the nature of my said Invention, I will proceed more
fully to describe the manner of performing the same.
DESCRIPTION OF THE DRAWING.
Figure 1 shows a vertical section of apparatus according to one form, and
combined according to my Invention; Figure 2 is a plan; and Figure 3
shows a transverse section thereof. Figure 4 shows a vertical section of appa-
ratus according to another form, and combined according to my Invention,
and Figure 5 shows a transverse section thereof. a is a stop, against which
a gate or door shuts; 6 is a bolt, which rises and fills into the thimble or
socket in which the bolt or fastening c of the gate or door is caused to
descend when the gate or door is shut and fastened.
Movement is com-
municated to the parts a and b by means of racks and pinion, or by other
convenient means, so that the one may ascend and the other descend. a', b',
are racks, which are formed on the stems of the bolts or instruments a and b,
and these instruments are guided in sockets d, d, at their lower ends, and
their upper ends move through openings in the plate e. The pinion f is
fixed on the shaft or axis g, which receives motion by bevel toothed wheels h
and i, one being fixed on the shaft g, and the other on the axis j fixed to the
gate or door; or in place thereof the axis j may have a screw formed thereon,
and act on one end of a lever k, as shown (in Figures 4 and 5), the other end
of the lever being attached to one of the parts a, b.

page_text: Having thus described the nature of my said Invention, and the manner
of performing the same, I would have it understood that I make no claim to
any of the mechanical parts separately, nor do I confine myself to the details;
but what I claim is the combination of apparatus, as herein described.
In witness whereof, I, the said Andrew Scott, have hereunto set my
hand and seal, this Twentieth day of January, in the year of our Lord
One thousand eight hundred and fifty-eight.
Witness,
GEO. PITT.
AND SCOTT. (L.S.)