Year: 1887

page_text: Date of Application, 20th Apr., 1887
Complete Left, 20th Jan., 1888
Complete Accepted, 9th Mar., 1888
I ANN PAYNE Wife of Henry Blackford Payne of 116 Gregory Boulevard Hyson
Green Nottingham do hereby declare the nature of this invention to be as follows:-
Whereas a great fault has existed heretofore in Bolts commonly used for doors and
other like purposes by reason of the bolt falling when placed in an upright position.
My invention is to prevent the falling of the bolt by the use of a spiral spring and
also to prevent the bolt turning round in order to keep the handle fixed to the bolt in
its proper position when the bolt is either up or down.
The bolt is constructed as follows:-
An ordinary plate is provided upon which I secure a long socket. At the bottom
end of this socket the ordinary recesses are provided to admit of the handle attached
to the bolt falling back either to the left or right as desired. An ordinary shaped bolt
with a handle at the bottom is then placed in the socket in the nsual way. Coiled
around this bolt is a spiral spring which serves the double purpose of keeping the bolt
up and also preventing the bolt from turning round and thus keeping the handle in
its proper place-The spiral spring can either have the coils wide apart or they can be
close together. If the Coils are wide apart the top end of the Spiral Spring would
be fixed to the bolt and the bottom end to the plate. If the Coils are close together
the top end of the Spiral Spring would be fixed to the plate and the bottom end would
be fixed to the bolt-In order to prevent the holt from turning round I give the bolt
one two or more turns when the spiral spring is fixed and then the bolt is properly
adjusted in the socket.
I would have it understood that I do not strictly confine myself to the exact
description hereinbefore contained so long as the novel features of my invention in
preventing the bolt from falling and turning round by means of a spiral spring or
springs are retained.

page_text: I, ANN PAYNE, wife of Henry Blackford Payne, of 116 Gregory Boulevard, Hyson
Green, Nottingham 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:-
This invention has reference to that type of bolt which is characterised by its
having a bolt sliding in a barrel and which said bolt is locked by being turned so as
to engage a projection thereon in a notch in the barrel portion.
A great inconvenience has arisen in use hitherto in barrel bolts commonly used for
securing doors and other like enclosing means especially when applied to act vertically
and upward by reason of the bolt falling when not properly secured in its notch or
when tampered with from the outside as for instance warehouse doors have been
illicitly entered by partially rotating the bolt at the top of the door, when the weight
of it has caused it to fall out of its catch and release the door.
The object of my invention is to prevent the falling of such a bolt or the working
back of a horizontally shot bolt or raising of a drop bolt by the addition and use of a
spiral spring to retain the bolt in its shot position, said spring also aiding in the
retention of the bolt from accidental or other turning of the same out of its holding
back notch.
!
The improved bolt is constructed substantially as described with reference to the
accompanying drawings in which Figure 1 shews a bolt suitable for screwing on to a
door or surface a. 6 being the front plate say of cast brass and b¹ the back plate is
seen through the opening or slot 62. In this figure the portion of the barrel in front
is broken away to permit of the spring c being seen in position coiled around the
sliding bolt proper b³ of which 6 forms the handle. This spring is at 66 attached to
the bolt 6 and to the barrel at 66, the normal tortional strain given to the spring c
when enclosing it is such as to give a constant tendency to twist the handle of the
bolt in the direction of the arrow and to draw it outwards in that direction also so
that whenever freed from the lower notch 67 it flies outward and partly around so as to
enter the upper or second notch 68 where it is locked until drawn in a reverse direction.
One or both notches 67 or 68 may be recessed indicated by broken line at * Figure 2.
Figure 2 shews an exterior view of the bolts from which it will be apparent that
exteriorly the article does not perceptibly differ necessarily from any ordinary barrel
bolt-the dotted lines x x indicate the hidden parts constituting the additions according
to my invention.
The bolt slider 6 with handle 64 may be as ordinary and be placed in the usual
socket 6 having coiled around it the spiral spring c serving the double purpose of
keeping it shot and preventing it from turning and its handle 6 from leaving its
place in a notch. The spring e may either have coils wide apart and compressed
into the socket or they may as shewn in the drawings be close coils drawn apart
for withdrawal of the bolt. If the coils be wide apart and intended to be

page_text: compressed then the top end-in an upward acting bolt-will be attached to the bolt 63
and the other or lower end to the plate or socket barrel. If the coils are close
together the top end of the spiral spring c would be attached to the plate or socket
barrel and the bottom end to the bolt 63. To give the torsional strain to the spring c
to tend to prevent the bolt from turning out of either notch one or more turns
are put on the spring after its attachment to the bolt and socket plate and before
finally adjusting those parts in their relative positions ready for use. d d are screw
holes for attachment as usual and e is the eye plate to receive the end of the bolt
when shot.
I am aware that it has before been proposed to arrange and that barrel bolts have
been arranged with a spring under the bolts having a constant tendency to press
the bolts outwards but such arrangement is in practice imperfect in that it did not
cause the studs of the bolts to be locked in the notches of the barrels when shot,
as in my improved barrel bolt above described.
Having now particularly described and ascertained the nature of said my inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:-
In a barrel bolt for doors and other like uses the combination or arrangement of
a spiral spring in connection with the bolt and with the barrel or socket operating
so as to cause the bolt to be pressed outwards, turned and the stud or projection
thereof locked into the notch in the barrel or socket as and for the purposes set
forth.