CERTAIN IMPROVEMENTS IN THE CONSTRUCTION OF WINDOW SASH FASTENERS
Year: 1861

page_text: LETTERS PATENT to Herbert Allman, of 13, Bedford Row, in the County
of Middlesex. Consulting Engineer. for the Invention of "CERTAIN
IMPROVEMENTS IN THE CONSTRUCTION OF WINDOW SASH FASTENERS."
Sealed the 2nd August 1861, and dated the 4th June 1861.
Consulting Engineer, do hereby declare the nature of the said Invention for
"CERTAIN IMPROVEMENTS IN THE CONSTRUCTION OF WINDOW SASH FASTENERS," to
be as follows:-
My improvements may be described as follows, and by reference to
Figures 1, 2, 3, 4, 5, 6, 7, 8. 9. in plan, side view, and section.
Fig. 1 is a side view. part in section, of a fastener. is a tangent wheel
revolving on the centre b c is a tangent screw, which by its action on A, lifts
the grip piece d: this piece d thus lays hold of the onter frame of fastener
at e, and draws the frames together and lifts the outer sash of window.
Fig. 2 is what I term a bolt fastener; the bolt a. a. is sprung back
from the outer sash by a spring in the tube b, b; the fastener is closed as
[Price Sd.1

page_text: shown in Drawing by pushing the bolt head d through the metal on outer sash,
and giving it a turn, a projection or key piece on the head d preventing the
return of bolt a.
Fig. 3 is similar to a fastener in general use, except I place a spring a, before
the bridge lever or leg b, instead of behind it. I also put a slot c in the leg b,
by this means the spring draws the sash frames together when fastener is locked,
and further springs the pin on leg d in a recess e so as to secure it from being
easily opened.
Fig. 4 is readily understood from Drawing, the leg a turning over vertically
on the centre b. so as to bring the screw in position to clamp the fastener
together.
Fig. 5 is a fastener in which the leg a turns over on centre e, as in Fig. 4.
but in this fastener a cam turning on centre c is made to clamp the fastener
by the handled moving in direction of arrow.
Fig. 6 the leg or bridge a turns over on a centre b, which works in a slot,
as shown; there is a flat spring c, which by its action on the leg a draws
the frames together, and causes the leg a to catch in the recess d.
Fig. 7 is a bolt fastener, the stem of ball a works forward in the slot in
tube b, b, pushing head of bolt e through the opposite frame c. Then when
the ball is turned down right-handed it works back and down the piece d,
drawing the frame together.
Fig. 8 is a similar bolt and ball, which is guided by a segment of a thread
on bolt working in the frame at c, when the head of bolt e passes through
outer frame at d, it draws frames together as in No. 7, by stem of ball working
down an inclined plane /.
Fig. 9 exhibits the adaptation of a rack and pinion a and b, which locks and
draws the frames.
Although herein exhibit various forms of window sash fasteners, all of
which I find to be well fitted for securing, drawing together, and adjusting the
sash frames of windows. yet I wish it to be understood that I do not confine
myself to the particular and definite forms herein set forth, as they may be
varied, provided that certain parts or forms of parts employed therein be
retained these parts or arrangement of parts as applied to the. construction of
window sash fasteners constitute my Invention.
1 claim as follows:-The use of a tangent wheel and screw, or segment of
tangent wheel and tangent screw, for the purpose herein described.
1 claim a bolt with a spring so acting thereon as to tend to keep the fastener
open and bolt back when the bolt locks the fastener by being pushed through

page_text: the outer frame of fastener, and by a projecting piece on the said bolt or a slot
cut therein.
I do not claim the spring bolt, as that is old, but the means whereby the
same is made to lock into the outer frame of fastener.
I claim the employment of a slot cut in the leg of fastener so as to allow
a right line movement as well as a rotatory.
I claim. placing the spring which acts on the leg in front of leg, or between
that part of the leg on which the said spring acts. and the other frame of
fastener.
I claim the use of a screw working in the leg to lock fastener, when the
said leg rotates vertically, but not when the same rotates horizontally.
I claim the use of a leg rotating vertically and locking by a catch when.
the said leg has a slot therein across the centre of rotation.
I claim the use of a cain to lock and draw together parts of fasteners.
I claim a bolt working in a slotted tube, which slot guides the movements
of the bolt.
I claim a bolt made with a thread or feather thereon. the said thread work-
ing in frame of fastener so as to govern the movements of the said bolt.
I claim the use of a rack and pinion movement to lock and draw together
the frames of such fastener.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Herbert Allman in the Great Seal Patent Office on the
29th November 1861.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HERBERT
ALLMAN, of 13, Bedford Row, in the County of Middlesex, Consulting Engineer,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria. by Her Letters
Patent, bearing date the Fourth day of June, in the year of our Lord One
thousand eight hundred and sixty-one, in the twenty-fourth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Herbert Allman. Her special licence that I, the said Herbert Allman, my
executors, administrators, and assigns, or such others as I, the said Herbert
Allman, my executors. administrators, and assigns. should at any time agree
with, and no others, from time to time and at all times thereafter during the
term therein expressed, should and lawfully might make, use. exercise.
and vend, within the United Kingdom of Great Britain and Ireland, the

page_text: Channel Islands, and Isle of Man, an Invention for "CERTAIN. IMPROVEMENTS
IN THE CONSTRUCTION OF WINDOW SASH FASTENERS," upon the condition (amongst
others) that I, the said Herbert Allman, my executors or administrators, by
an instrument in writing under my, or their, or one of their hands and seals,
should particularly describe, and ascertain the nature of the said Invention,
and in what manner the same was to be performed, and cause the same to
be filed in the Great Seal Patent Office within six calendar months next
and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Herbert Allman, do hereby declare the
nature of my said Invention. and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement.
My improvements may be described as follows, and by reference to
Figures 1, 2, 3, 4, 5, 6, 7, 8, 9, in plan, side view, and section.
Figure is a plan, part in section. of a fastener; is a tangent wheel
revolving on the centre bc is a tangent screw, which by its action on a moves
the grip piece d: this piece d thus lays hold of the outer frame of fastener
at e, and draws the frames together.
Figure 2 is what I term a bolt fastener; the bolt a, a, is sprung back from
the outer sash by a spring in the tube b the fastener is closed as shown in
Drawing by pushing the bolt head d through the metal on outer sash, and
giving it a turn, a projection or key piece on the head d preventing the return
of bolt a.
Figure 3 is similar to a fastener in general use, except place a spring a
before the bridge lever or leg instead of behind it. I also put a slot c in the
leg b by this means the spring draws the sash frames together when fastener
is locked, and further springs the pin on leg in a recess e so as to seclife from
being easily opened.
Fig. 4 is readily understood from Drawing, the leg a turning over vertically
on the centre b. so as to bring the screw c in position to clamp the fastener
together.
Fig. 5 is a fastener in which the leg a turns over on centre b, as in Fig. 4,
but in this fastener a cam e. turning on centre c. is made to clamp the fastener
by the handle d. moving in the direction of arrow.
In Figure 6 the leg or bridge a turns over on a centre b, which works in a
slot as shown. There is a flat spring e, which by its action on the leg a draws
the frames together, and causes the leg a to catch in the recess d.
Figure 7 is a bolt fastener; the stem of ball a works forward in the slot in

page_text: tube b, b. pushing head of bolt e through the opposite frame c; then when
the ball is turned down right-handed it works back and down the piece d,
drawing the frame together.
Figure 8 is a similar bolt a, a, a, and ball which is guided by a segment
of a thread b on bolt working in the frame at c. when the head of bolt e
passes through outer frame at d. it draws frames together as on No. 7, by stem
of ball working down an inclined plane f.
Figure 9 exhibits the adaptation of a rack and pinion a and b, which locks
and draws the frames..
Although herein exhibit various forms of window sash fasteners, all of
which I find to be well fitted for securing. drawing together, and adjusting the
sash frames of windows, yet I wish it to be understood that I do not confine
myself to the particular and definite forms herein set forth, as they may be
varied, provided that certain parts or forms of parts employed therein be
retained. These parts or arrangements of parts as applied to the construction
of window sash fasteners, constitute my Invention.
I claim as follows:-The use of a tangent wheel and screw, or segment
of tangent wheel and tangent screw, for the purpose herein described.
I claim a bolt with a spring so acting thereon as to tend to keep the fastener
open and bolt back when the bolt locks the fastener by being pushed through
the outer frame of fastener, and by a projecting piece on the said bolt or a slot
cut therein.
I do not claim the spring bolt, as that is old, but the means whereby the same
is made to lock into the outer frame of fastener.
I claim the employment of a slot cut in the leg of fastener so as to allow a
right line movement as well as a rotary.
I claim placing the spring which acts on the leg in front of leg or
between that part of the leg on which the said spring acts, and the other
frame of fastener.
I claim the use of a leg rotating vertically and locking by a catch, when the
said leg has a slot therein across the centre of rotation.
I claim the use of a cam, as shown, to lock and draw together parts of
fasteners.
I claim a bolt working in a slotted tube, which slot guides the movements.
of the bolt.
I claim a bolt made with a thread or feather thereon; the said thread
working in frame of fastener, as shewn, so as to govern the movements of the
said bolt.

page_text: Tack anu
TO TUCK I
togein
the frames of sash fasteners.
In witness whereof, I, the said Herbert Allman, have hereunto set my
hand and seal, this Twenty-fifth day of November, One thousand
eight hundred and sixty-one.
Signed, sealed, and delivered by the
above-named Herbert Allman, in the
presence of
J. YORK,
HERBERT ALLMAN. (L.S.)
Law Stationer,
Birmingham.