Automatic Spring Fastener for Holding a Door in Position when Open.
Year: 1893

page_text: Date of Application, 17th June, 1893
Complete Specification Left, 15th Mr., 1894-Accepted, 28th Apr., 1894
Automatic Spring Fastener for Holding a Door in Position
when Open.
FRANCIS SOMERSCALES 20 Park Grove Hull Naval Architect do hereby
declare the nature of this invention to be as follows:-
Firstly I have a bolt or spur with a foot for attachment to a wall, a bulkhead or
a door; the bolt having an inclined groove at the outer end and a hole at the inner
end of the groove. Secondly I have a spring latch which consists of a chamber
for the spring and a plate at the back for securing to a wall, a bulkhead or a door,.
this plate having a hole in it for the bolt before named to enter where it is
convenient to fix the latch to the upper part of a door the hole is not necessary as
the bolt can slide over the door top. A bolt is made to slide in the chamber of the
latch having a collar to take the thrust of the spring, and a head for taking hold of
to release the latch. The latch is brought into use when by reason of the motion
of the door the bolt of the latch is made to bear on the inclined groove which it
slides along until the spring forces it into the hole in the first named bolt or spur.
Dated this Sixteenth day of June 1893.
COMPLETE SPECIFICATION.
Automatic Spring Fastener for Holding a Door in Position
when Open.
FRANCIS SOMERSCALES 20 Park Grove Hull Naval Architect. I 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 :-
Firstly I have a bolt or spur with a foot for attachment to a wall, a bulkhead,
or a door: the bolt having an inclined groove at the outer end and a hole at the
inner end of the groove, secondly I have a spring latch which consists of a chamber
for the spring and a plate at the back for securing to a wall, a bulkhead, or a door
the plate having a hole in it for the bolt before named to enter; where it is
convenient to fix the latch to the upper part of a door the hole is not necessary as
the bolt can slide over the door top. A bolt is made to slide in the chamber of the
latch having a collar to take the thrust of the spring and a head for taking hold of
to release the latch. The latch is brought into use when by reason of the motion
of the door the bolt of the latch is made to bear on the inclined groove which it
slides along until the spring forces it into the hole in the first named bolt.
In the drawing annexed A is the bolt or spur, B is the chamber of the spring
latch, C is the latch bolt, D is the spring, E is the door to which the latch may be
attached, F is a wall or bulkhead, G is a pad which may be secured to the door,
wall or bulkhead, to adjust the distance, when required between the door and the
wall, H is the inclined groove at the end of the bolt or spur, I is the hole at the
inner end of the inclined groove.

page_text: 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
1st. The method herein described of constructing an automatic door fastener
which method consists in the combination of a spring latch with a spur or bolt
having a hole in it to receive the latch bolt.
2nd. The method of steadying the latch bolt when the same is brought in contact
with the spur before mentioned by means of an inclined groove formed at the end
of the spur.
3rd. The hole formed in the spur to receive the latch bolt. The said bolt being
forced by the spring into the hole in the spur, the instant that the motion of the
door brings the said bolt opposite the hole.
Dated this Seventeenth day of April 1894.