Improvements in the Construction of Wrought Iron Door Latches.
Year: 1887

page_text: Date of Application, 21st Oct., 1887
Complete Specification Left, 21st July, 1888
Complete Specification Accepted, 24th Aug., 1888
PROVISIONAL SPECIFICATION.
Improvements in the Construction of Wrought Iron Door Latches.
I, FRANCIS HENRY CURTIS 269 Newhampton Road Wolverhampton Merchants
Clerk, do hereby declare the nature of this invention to be as follows:-
The Improvements consist substantially in the substitution of a handle or bow
cranked away from the ordinary right angle, and in the means adopted to allow of
the Latch being used on either a right hand or left hand door-as hereunder
specified.
The Bow or handle is fixed at or about the angle of 45 degrees from the plane of
the door, instead of at right angles as in the ordinary type of Latch, the purpose of
which being to give the hand more room when using the latch, and also to prevent the
abrasion of the knuckles against the side post or wall.
The Back plate is made in 2 pieces, the upper portion carrying the thumb bit, & the
lower part carrying the handle, the lower end of the upper portion to be shaped so
that either end of the lower part will fit into it and so lock together, the shape or
configuration of the said ends to be any fancy design that will suit the purpose.
The latch in other particulars to be made as in the ordinary type.

page_text: COMPLETE SPECIFICATION.
Improvements in the Construction of Wrought Iron Door Latches.
I FRANCIS HENRY CURTIS 269 Newhampton Road Wolverhampton in the County
of Stafford, Merchants Clerk, 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 :-
The improvements consist substantially in the substitution of a handle or Bow,
cranked away from the ordinary right angle and in the means adopted to allow of the
Latch being used for either right or left hand doors as hereunder specified.
The Bow or handle is fixed or cranked at or about the angle of 45 degrees froin the
plane of the door, instead of being at right angles as in the ordinary type of latches,
the purpose of which being to give the hand more room when using the latch, to
prevent the abrasion of the hands or knuckles against the side posts or wall and to
allow the latch to be fitted close to the jamb-especially in narrow fitted or double
doors.
The back plate is made in two pieces, the upper portion carrying the thumb-bit and
the lower part carrying the handle, the lower end of the upper portion to be so shaped
that either ends of the lower part will fit into it and thus lock together-the shape or
configuration of said ends to be made in any fancy design to suit the purpose.
The Latch in other respects to be made as in the ordinary types.
Having thus stated my invention, I will proceed to more particularly describe the
same in reference to the accompanying drawings.
Figure 1 is a front elevation, shewing a door latch constructed according to my
invention.
Figure 2 is a plan of the lower portion of Figure 1.
In Figure 1A is the handle or bow cranked away from the right angle B is the
lower part of backplate carrying the handle A; B is the upper portion of backplate
carrying the Thumb-bit, C D the lower end of back plate B, and E E¹ the two
ends of backplate B, are so shaped, that they join together and thus lock into each
other.
In Figure 2, A is the backplate; B is the cranked handle.
Although this latch was designed more particularly to be worked in Iron, it is
equally applicable to other metals such as Brass, Copper etc.
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. Cranking the handle or Bow of a door latch at any convenient angle to the

page_text: plane of the door for the purposes herein described and illustrated by the accom-
panying drawings.
11. Making the Backplate of door latches in two pieces so that the latches may
readily be used either for right or left band doors, substantially as herein described
and illustrated by the accompanying drawings.
III. Shaping the top and bottom ends of the top and bottom parts of door latches
constructed according to my invention in any convenient manner for the purpose of
locking the parts of door latch together when they are being fixed substantially as
hercin described and illustrated by the accompanying drawings.
Dated this 20th day of Luk. 1000