Improvements in Window Fasteners.
Year: 1895

page_text: Date of Application, 10th Apr., 1895
Complete Specification Left, 21st Dec., 1895-Accepted, 28th Mar., 1896
Improvements in Window Fasteners.
Ì THOMAS ROBINSON of 25 Henrietta Street, Old Trafford, Manchester, in the
County of Lancaster, Contractor, do hereby declare the nature of this invention to
be as follows :-
My said invention relates to improvements in means for securing the windows of
dwelling houses and the like, the improved fastener being adapted to secure the
window sashes at all times firmly and irrespective of the wear of parts, and
also in such a manner as to render it impossible to undo the fastener from
without.
I mount two base plates upon the two sashes in the usual positions or in any
other suitable position, these plates being firmly screwed to the sashes.
Upon the base plate of the outer sash I pivot a screw threaded nut bracket, and
upon the plate of the inner sash I fix or form a jaw or latch piece the open ends
being curved or rounded off. I also provide a screwed stud with a wing or thumb
head and a collar or ruff of such diameter as not to pass through the jaw. The
screwed end of the stud is screwed into the pivotted nut bracket on the plate of
the outer sash, the end of the stud being preferably formed with a head to prevent
it from being screwed out of the bracket. To bind and secure the two sashes
together I screw the stud into the nut bracket until the collar of the stud presses
Thus I can
firmly against the inner side of the jaw piece on the inner sash.
jamb the sashes together so firmly as to prevent all jar and rattling. By recessing
the inner side of the jaw piece, a shoulder is presented to the collar of the stud, so
that even if it were possible to push a knife blade or other object between the
sashes from without, it would still be impossible to move the screwed stud out of
position. To undo the fastener, the screwed stud must be screwed sufficiently far
out of the nut bracket to enable it to be swung round the curved end of the
jaw piece, the nut bracket turning readily on its pivot. When the stud is
lying parallel with the lower bar of the inner sash, either sash can then be
moved.
My improved fastener can be applied without difficulty to existing sashes and
windows.
1
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11005
Improvements in window Fasteners.
I, THOMAS ROBINSON, Builder, of 93 Wellington Road, Preston, in the County
of Lancaster, late of 25 Henrietta Street, Old Trafford, Manchester, in the
County of Lancaster, 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 :→
12'
My invention pertains to improvements in window or casement fasteners

page_text: applicable for dwelling houses, and has for its object a particular arrangement and
construction of fastening whereby the window sashes or casement parts are more
firmly locked or secured in their close positions and all draft from the same
excluded. Furthermore, in a window fitted with my improved fastening all jar or
rattling in windy weather, and bad fitting owing to the shrinking of the wood, is
prevented, and the fastening cannot be undone or released from without by the
insertion of any kind of tool or implement.
My improved sash or casement fastener consists essentially of a quick-threaded
screwed pin or bolt carried by a pivotted or revolving screwed nut or capstan-like
stud connected or attached to a base plate secured to one of the sashes of a
window. This said screwed pin or bolt is adapted to engage a lug, projection,
jaw, or latch piece carried or made integral with a base plate secured to the other
sash and, on the rotation of the said screwed pin or bolt, the sashes are pulled
together or locked in a very effective manner.
To illustrate my invention and the manner in which the same is fitted to the
sashes of a window I annex a sheet of drawings of which
Fig. 1 is a longitudinal' vertical section taken through the lower bar of the outer
sash and the top bar of the inner one.
Fig. 2 represents a top side plan of Fig. 1, the sashes in these views being
securely locked, whilst
Fig. 3 is a like view as Fig. 2 but with the fastening disconnected or the sashes
unlocked.
Fig. 4 illustrates the front end of the fastening, and shows the collar of the
screwed pin or bolt engaged with or retained by shoulders or outstanding parts on
the lug or jaw member of the fastening.
Fig. 5 is a section showing the screwed pin or bolt carried by the revolving or
pivotted capstan-like nut, whilst
Fig. 6 is also a section on the dotted line 2, Fig. 5 exhibiting a means for
retaining the capstan-like stud or screwed box with its screw in a disengaged
position.
Fig. 7 is a modification of the retaining arrangement illustrated in Fig 6.
The same letters of reference indicate like parts in the several figures.
A base plate a is secured to the lower bar b of the outer sash, and to this is
jointedly or pivotally connected a carrier bracket or capstan-like stud a³, by loosely
rivetting at a to the base plate a, as aforesaid, and which said carrier bracket or
capstan-like stud is provided with a collar a', a portion of which at a is cut away
for the purpose as hereinafter described.
The head as of the carrier bracket, screwed nut, or capstan-like stud a is fitted
with a screw box a', adapted to engage a screwed part of a shank c* of a screw
or bolt c and to carry the same, and which said screw or bolt is provided with a
shoulder or collar ct, and a thumb portion c for the operation thereof.
Fitted to the top bar of the inner sash d by a base plate f, through the medium
of wood screws, is a bracket-like projection, lug, jaw, or latch piece 2, standing
up from the base plate, and open at its one end, and provided with shoulders
and, and a set back part or recess fº. When the sashes are locked together
the.collar c of the screw or bolt c comes up against the set back part, and
behind the shoulders ff of the bracket-like lug, and the said screw is prevented
from being swung out of position until the same has been rotated sufficient to
clear the collar c from the said shoulders
To retain the pin or bolt c in its unlocked or unfastened position as shown in
Fig. 3 a spring g, carried by a post g standing up from the plate f, is made to
engage its one end 9 with a stop shoulder g, formed by the cut away part a of
the carrier bracket a', whilst the shoulder g prevents the pin or bolt c being
moved too far in the other direction by constituting a stop against the post 9.
The object of the spring 9 and its stop shoulder 9' is to prevent the bolt or pin
from getting displaced when the window sashes are open, but when in their closed
positions the end g³ of the spring g can be easily forced from the shoulder 9' by the

page_text: part rotation of the carrier bracket a', when the pin or bolt c is taken behind the-
lug or jaw. Instead of employing the spring 9 with its shoulders 94 and 96 in
the carrier bracket, the latter may be stiffened in its joint or pivotted as shown in.
Fig. 7 by the employment of a concave deflecting spring washer 9, confined between
the underside of the collar at of the carrier bracket a', and the top side of the base-
plate a, which will prevent the screw pin or bolt from becoming displaced in its-
thrown back position when the sashes are opened.
The screwed part c³ of the screw pin or bolt c, and also the box of the carrier
bracket a wherein it works, are quick-threaded so that the locking or unlocking
of the sashes is quickly performed. To unlock the sashes it is simply necessary to.
rotate the screw pin or bolt c until the collar a is clear of the shoulders f* f", when
the same can be swung round or thrown back on its hinge or joint, and is there.
retained by the end of the spring g engaging the shoulder g of the collar a'.
To prevent the screw pin or bolt c from becoming detached from its capstan
pivot or joint the extreme end is slightly rivetted, or the threads of the screwed
part slightly displaced.
Instead of carrying the screw pin or bolt on the outer sash the same may be.
carried on the inner one, and the lug or projecting bracket attached to the outer
sash by simply reversing the said parts, as illustrated, and, further, instead of
several threads being forined on the screw pin, only a portion of a screw thread or
a spirally formed inclined plane may be employed.
If desired, instead of the pin or bolt c being connected by a thread to the
pivotted bracket, the same may be rigidly connected to the bracket and have a
thread formed on its other end upon which a thumb nut works for the locking of
the sashes together.
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 :-
First. A sash fastener consisting of a screwed or partly screwed pin or bolt
carried by and engaging with a hinged, pivotted, or jointed screwed box carrier
bracket or capstan-like stud, and a bracket-like projection, jaw, or latch piece,.
respectively, secured to the sashes of a window, the former adapted to engage
the latter and bridge the sashes, substantially as and for the purposes described and
set forth.
Second. In a sash fastener as claimed in the preceeding claim the means for
retaining the screwed box carrier bracket or capstan-like stud with its screwed.
pin or bolt in its disengaged or unlocked position, substantially as described and
set forth in Figs. 1-6.
.
Third. In a window fastener as claimed in the first claim the retaining or stiff
jointing means of the screwed box carrier bracket or capstan-like stud, as described
and illustrated in Fig. 7.
Fourth. The arrangement, fitting, and combination of the parts constituting my
improved sash fastener as described and set forth in Figs. 1-7.
D
Lesh do of Wober 1896
W. P. THOMPSON & Co.,
Of 11, Burlington Chambers, New Street, Birmingham,
Agents for the Applicant.