Improvements in or connected with Mortise Bolts, more especially applicable to Stable Doors.
Year: 1894

page_text: Date of Application, 14th Sept., 1894
Complete Specification Left, 14th June, 1895-Accepted, 20th July, 1895
PROVISIONAL SPECIFICATION.
Improvements in or connected with Mortise Bolts, more especially
applicable to Stable Doors.
We,
WILLIAM ALFRED EDWARD CROMBIE, Engineer, and THE PARAGON
BOLT SYNDICATE, LIMITED, all of No. 14, Sherborne Lane, in the City of
London, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in or connected with mortise bolts more
especially applicable to stable doors and adapted to be actuated either from the
outside or the inside of the door.
It is well known, that with an ordinary bolt fitted upon a stable door there is a
danger of the horse, either with its tongue or lip working the bolt back so as to
unlock the door, and the object of the present invention is to so construct the bolt
and its fittings that this danger is greatly lessened if not altogether removed.
In carrying the invention into effect, the bolt is mounted in a fitting inserted in
the door in the ordinary way of mortise bolts, and upon one side of the bolt is a
projecting stud or handle formed with a slightly enlarged head and intended to be
located upon the inside of the door, whilst, upon the other side, the bolt is provided
with a similar stud furnished with a large button head or handle.
Upon the inside of the door is provided a recessed fitting in which the stud head
works, flush with the door and this fitting is formed with a horizontal slot through
which the stud passes and traverses to allow of the bolt being shot or retracted,
whilst, at each end of this slot in the upper side thereof, is formed a recess so that,
when the bolt is shot or retracted, the stud may be raised so as to enter either
recess and thus fix the bolt in that position and by reason of the recesses being
arranged upon the upper side of the slot, there will be little or no risk of the stud
being disengaged therefrom by the horse, inasmuch as a horse naturally works with
its tongue or mouth in an upward direction.
A similar fitting is arranged upon the outside of the door, but, in this case, the
recesses at the ends of the slot take a downward direction, and, as the button headed
bolt handle is more or less heavy, the weight thereof will automatically cause the
stud to engage and remain in either of the end recesses.
By the means herein before described, although a person can readily actuate the
bolt from either the inside or outside of the door, it will be practically impossible
for a horse to release the inside stud or handle from its recess inasmuch as the stud
is flush with the door or nearly so and the upward working of the bolt handle by
the horse will merely tend to tighten the stud in its recess.
Dated this 14th dox of Sentember 1894.
VAUGHAN & SON,
Agents for the Applicants.

page_text: Improvements in or connected with Mortise Bolts, more especially
applicable to Stable Doors.
We, WILLIAM ALFRED EDWARD CROMBIE, Engineer, and THE PARAGON
BOLT SYNDICATE, LIMITED, all of No. 14, Sherborne Lane, in the City of
London, 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:-
Our said invention relates to improvements in or connected with mortise bolts
more especially applicable to stable doors and adapted to be actuated either from
the outside or the inside of the door.
It is well known, that with an ordinary bolt fitted upon a stable door there is a
danger of the horse, either with its tongue or lip, working the bolt back so as to
unlock the door, and the object of the present invention is to so construct the bolt
and its fittings that this danger is greatly lessened if not altogether removed.
In carrying the invention into effect, the bolt is mounted in a fitting inserted in
the door in the ordinary way of mortise bolts, and upon one side of the bolt is a
projecting stud or handle formed with a slightly enlarged head and intended to be
located upon the inside of the door, whilst upon the other side the bolt is provided
with a similar stud furnished with a large button head or handle.
Upon the inside of the door is provided a recessed fitting in which the stud head
works flush with the door and this fitting is formed with a horizontal slot through
which the stud passes and traverses to allow of the bolt being shot or retracted,
whilst, at each end of this slot in the upper side thereof, is formed a recess so that,
when the bolt is shot or retracted, the stud may be raised so as to enter either
recess and thus fix the bolt in that position and by reason of the recesses being
arranged upon the upper side of the slot, there will be little or no risk of the stud
being disengaged therefrom by the horse inasmuch as a horse naturally works with
its tongue or mouth in an upward direction.
A similar fitting is arranged upon the outside of the door, but, in this case, the
recesses at the ends of the slot take a downward direction, and as the button headed
bolt handle is more or less heavy the weight thereof will automatically cause the
stud to engage and remain in either of the end recesses.
And, in order that the said invention may be more clearly understood and readily
carried into effect, we will proceed aided by the accompanying drawings more fully
to describe the same.
DESCRIPTION OF THE DRAWINGS.
Figure 1. represents a portion of a door having the present invention applied
thereto and looking towards the inside of the apartment and showing the bolt
retracted.
Figure 2. is a vertical transverse section taken on the line A-B of Figures 1,
and 3.
Figure 3. is a similar view to Figure 1. looking towards the outside of the door,
but showing the bolt projected.
Figure 4. represents a face view of the perforated socket plate into which the
bolt shoots.
In the several figures, like parts are indicated by similar letters of reference.
G. represents the bolt which is cylindrical in form and mounted in a
tube an

page_text: head E. and intended to be located upon the inside of the door, whilst upon the
other side of the bolt G. is provided a similar stud F¹ furnished with a large button
head F.
Upon the inside of the door is provided a recessed fitting C. in which the stud
head E. works flush with the door and this fitting C. is formed with a horizontal
slot S. through which the stud E' passes and traverses to allow of the bolt G. being
shot or retracted, whilst at each end of the slot S. in the upper side thereof is
formed a recessed or returned part St so that when the bolt G. is shot or retracted
the stud E may be raised so as to enter either recess S¹ and thus fix the
bolt G. in that position and by reason of the recesses S¹ being arranged upon the
upper side of the slot S. there will be little or no risk of the stud E¹ being
disengaged therefrom by the horse, inasmuch as a horse naturally works with his
tongue or mouth in an upward direction, and this action would simply tend to hold
the stud E' in its recess S¹.
A similar countersunk fitting D. provided with a similar horizontal slot S. is
arranged upon the outside of the door, but in this case the recesses S' at the ends of
the slot S. take a downward direction and the button head F. is made considerably
beavier than that E. so that it will automatically cause the stud F¹ to engage and
remain in either of the end recesses S¹.
By the means hereinbefore described, although a person can readily actuate the
bolt from either the inside or outside of the door it will be practically impossible
for the horse to release the inside stud E' from either of its recesses S¹ inasmuch as
the handle E. is flush with the door or nearly so, and the upward working thereof
by the horse will merely tend to tighten the stud E' in its recess S¹..
Although the invention is primarily intended for use in connection with stable
doors it will be understood that it is equally applicable to other uses where a neat
and secure bolt is desired.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, we declare that what
we claim is :
:-
A mortise bolt, comprising a bolt, a stud or projection from each side of the bolt
one accessible on the inside and the other on the outside of the door, a fitting on
each side of the door provided with a horizontal slot for the corresponding stud or
projection to work in, one slot being at each end thereof upwardly turned to form
recesses to receive the corresponding stud and the other slot being at each end
downwardly turned to form recesses to receive the corresponding stud such stud
being weighted to raise the opposite stud so as to engage the turned ends of its
slot, substantially as herein shown and described.
Dated this 14th day of June 1895.
VAUGHAN & SON,
Agents for the Applicants.