IMPROVEMENTS IN WINDOW FASTENINGS
Year: 1869

page_text: LETTERS PATENT to George Price, of Birmingham, in the County.
of Warwick, Brass Founder, for the Invention of "IMPROVEMENTS IN
WINDOW FASTENINGS."
Sealed the 20th July 1869, and dated the 29th January 1869.
PROVISIONAL SPECIFICATION left by the said George Price at the
Office of the Commissioners of Patents, with his Petition, on the
29th January 1869.
I, GEORGE PRICE, of Birmingham, in the County of Warwick,
Brass Founder, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN WINDOW FASTENINGS," to be as follows, that is to say :-
This Invention has for its object the construction of fastenings for
window sashes or casements in such manner that when secured they may
not be unfastened or released from the outside of the windows for the
opening of the sashes or casements. Upon the one part of the fastening
I form the circular catch plate in the ordinary way as a fixture there-
upon, and provide a moveable catch secured to the circular catch plate
by a vertical rivet pin, and having a spring action by means of a vertical
spring secured to the body of the catch plate, the said spring always

page_text: bearing and pressing inwards the moveable catch up to the edge of the
circular catch plate. The moveable catch is curved or rounded at its frce
end, and is suitably cut or recessed to engage with and fit around a raised
stud picce formed upon the lever arm or catch bar upon the other part of
the fastening, which is made in the ordinary manner with the exception
of the knob or handle end, upon which I attach by means of a pivot or
centre pin a moveable friction or cam plate actuated by a suitable thumb
piece projecting therefrom, and on one side of the friction plate is formed
a raised stud.
The action of a fastener made as described will be thus:-To fasten a
pair of sashes, for instance, the lever arm or catch bar is brought round
upon its axis or pivot by means of the thumb bit, and in passing beneath
the circular catch plate the raised stud upon the lever arm comes into
contact with the curved edge of the moveable catch, forcing it outwards
and overcoming the action of the spring until the stud has passed the
curved end, when it enters the notched or cut out part of the moveable
catch. The spring forces back again into position the moveable catch,
and the parts are thus. effectually secured together until required to be
released, which is effected by the reverse action of the thumb piece
causing the stud upon the frictional plate to bear-upon the curved edge
of and force outwards the moveable catch until the two raised studs
impinge against each other, the further motion of the thumb piece dis-
engaging the stud and allowing the lever arm and frictional plate to
move outwards together, when the moveable catch will fly back into
position by means of its spring.
By another arrangement I form a thumb piece upon the end of the
lever bar or arm and attach a spring, helical or otherwise, to a moveable
stud piece working slightly in a groove, upon the lever arm or bar, the
stud piece being suitably cut, curved, or rounded on edge to fit within a
corresponding recess or cut out portion upon the edge of the circular
plate; thus when the lever arm is turned to fasten the parts the spring of
the moveable stud piece will yield to the pressure required to permit the
traverse of the moveable stud piece along the edge of the circular plate
until it reaches its recess, when the parts will be secured, the reverse
motion of the lever bar releasing the same.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said George Price in the Great Seal Patent Office on
the 28th July 1869..
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
3. PRICE, of Birmingham, in the County of Warwick, Brass Founder,
send greeting..
WHEREAS. Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-ninth day of January, in the
year of our Lord One thousand eight hundred and sixty-nine, in the
0. thirty-second year of Her reign, did, for Herself, Her heirs and
successors; give and grant unto me, the said George Price, Her special
license that I, the said George Price, my executors, administrators,.
and assigns, or such others as I, the said George Price, my executors,
administrators, and assigns, should at any time agree with, and no
b. 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
Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN
WINDOW FASTENINGS," upon the condition (amongst others) that I, the
said George Price, by an instrument in writing under my hand and
seal, 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 George Price, do hereby declare
the nature of my said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by
the following statement, reference being had to the Drawings hereunto
annexed, and to the letters and figures marked thereon, that is to say :-
This Invention has for its object the construction of fastenings for
window sashes or casements in such manner that when secured they
may not be unfastened or released from the outside of the windows for
the opening of the sashes or casements.
Referring to the Drawings hereunto attached, Figure 1 is a view
of one of my improved window fastenings shewn as secured and applied
to a pair of sashes or casements, which are represented by a portion of

page_text: the woodwork in section; Figure 2 is a view of the same fastening
with the catch parts disengaged or free; Figures 3 and 4 shew in plan
and elevation respectively the parts of the fastening to which my
improvements more particularly refer, and partially disengaged.
- Upon the one part (A) of the fastening is formed the circular catch
plate (6) in the ordinary way as a fixture thereupon, and I provide a
moveable catch (c) secured to the circular catch plate (b) as a hinge
by a vertical rivet pin (d) passing through the parts. The moveable
catch (c) has a spring action by means of the spring (e) secured to the
side of the circular catch plate (4), the said spring (e) always bearing.
and pressing inwards the moveable cateh (c) up to the edge of the
fixed circular catch plate (b). The moveable catch (c) is curved or
rounded as at (c¹) at its free end, and is suitably out or recessed at (c)
to engage with and fit around a raised stud piece (f) which is shewn in
Figure 3 in section for the sake of clearness. The raised stud piece (ƒ) is
formed upon the lever arm or catch bar (9) upon the other part (H) of
the fastening, which is made in the ordinary manner with the exception of
the knob or handle end, upon which I attach a moveable friction or cam
plate (i) by means of the stud piece (f), which acts acts as a centre or
pin for the friction or cam plate (i) a suitable handle or thumb piece (¹)
being formed to project from and as part of the friction or cam
plate (i).
The action of a fastener so made will be thus:-To secure a pair of
sashes, for instance, the lever or catch bar (g) is brought round upon its
axis or pivot by means of the thumb bit or handle (¹), and in passing
beneath the circular catch plate (6) the raised stud (f) comes in contact
with the curved edge of the moveable catch (c), forcing it outwards and
overcoming the action of the spring (e) until the raised stud or
pivot (f) has passed the curved end of the moveable catch (c) when it
enters the notched or cut out part (c²) of the moveable catch (c), which
will then be forced back into position by the spring (e), the parts being
thus effectually secured together until required to be released, which is
effected by the reverse action of the thumb piece (1) causing the cam (²)
of the friction or cam plate (i) to bear upon the inner curved edge of
the body of the moveable catch (c), indicated in dotted lines Figure 3,
so as to force outwards the moveable catch (c) a sufficient distance
to permit the raised stud or pivot (f) to become disengaged from the
notched or recessed part (c) and thus free the parts.

page_text: Or the arrangement of the fastener described may be slightly varied,
as shewn in plan in Figures 5 and 6, the latter Figure shewing the parts
partially freed. In this case the moveable catch plate (c) is secured in
a recessed part of the circular plate (b) as shewn, and the spring (e)
secured to the front portion of the body of the circular plate (6); the
moveable friction or cam plate (i) being attached to the catch bar or
lever arm (g) by a pin or rivet (k), whilst the stud or rivet piece (1) is
formed separately upon the lever arm (9), a second stud or rivet (7)
being formed upon the moveable friction or cam plate (i). To release
the parts of a fastener thus made upon the thumb bit (2) being moved
for that purpose, the second stud or rivet (7) upon the frictional
plate (i) bears upon the curved edge of and forces outwards the
moveable catch (e) until the two raised studs impinge against each other,
the further motion of the thumb piece (i) disengaging the stud (1) and
freeing the parts.
Figures 7 and 8 illustrate in secured and disengaged views another
arrangement of the parts of my improved fastening similar to those
already specified. In this case the moveable catch (c) is made to move
upwards upon its pin or rivet (m), instead of inwards or outwards, the
spring (e) being fitted and secured to the under side of the part (A) so
that its free end has a constant tendency to keep down in position the
moveable catch part (c), the notched or recessed part of which, when
the fastening is secured, engaging upon the lever arm or catch bar (9),
which is suitably rounded upon edge for that purpose, the cam (1) upon
the moveable friction plate (i) being peculiarly formed, as shewn, so as to
gradually act upon and uplift or raise the moveable catch (c) sufficiently
to disengage the lever arm or catch bar from the recess (c³) when the
parts are to be released. The general action of this fastening being
similar to those already specified further description is unnecessary.
By another arrangement I form a thumb piece upon the end of the
lever bar or arm, and attach a spring, helical or otherwise, to a moveable
stud piece working slightly in a groove upon the lever arm or bar, the
stud piece being suitably cut, curved, or rounded on edge to fit within
a corresponding recess or cut out portion upon the edge of the circular
plate; thus when the lever arm is turned to fasten the parts the spring
of the moveable stud piece will yield to the pressure required to permit
the traverse of the moveable stud piece along the edge of the circular
plate until it reaches its recess, when the parts will be secured, the
reverse motion of the lever bar releasing the same.

page_text: Having thus described the object and nature of my said Invention,
and in what manner the same is to be carried into effect, I claim, without
confining myself to the exact form of the various parts described and
illustrated, the several improvements in window fastenings, having more
especial reference to the parts employed in locking and unlocking such
fastenings, substantially in manner as herein more fully set forth and
specified.
In witness whereof, I, the said George Price, have hereunto set
my hand and seal, this Twenty-seventh day of July, in the year
of our Lord One thousand eight hundred and sixty-nine..
GEORGE PRICE.. (L.S.).