A New or Improved Fastener for Window-sashes, Shutters, Doors, and the like.
Year: 1889

page_text: Date of Application, 5th Nov., 1889
Complete Specification Left, 2nd Aug., 1890-Accepted, 20th Sept., 1890
PROVISIONAL SPECIFICATION.
A New or Improved Fastener for Window-sashes, Shutters, Doors,
and the like.
I, JAMES HEARTH of 124 Church Gate, Leicester, Manufacturer, do hereby declare
the nature of this invention to be as follows:-
This invention has reference to a new or improved device or contrivance for
fastening window sashes, shutters, doors &c.
The construction of a device for fastening window sashes &c. may consist in a
suitable base-plate being secured to the meeting rail of the window frame. The upper
face of the base-plate may be provided with a collar or boss on which may rest and be
free to rotate thereon a winged lever the central part of which is tubular and whose
upper face may move in contact with the under face of a fixed collar or equivalent
forming the upper end of a tube which passes through the tubular portion of the
winged lever, through the collar on the base-plate and has its lower end firmly screwed
to or formed integrally with the latter.
A vertical shaped pin or spindle passes through the parts before mentioned viz. ;-
the collar in the base, the tubular portion of the winged lever and the fixed collar, its
upper end being formed with a head; the stem being encircled with a spiral spring,
while the bottom end is bored and screw threaded thereby adapting it to receive a
screw the head of which is enlarged sufficiently to form a bearing surface for the end.
of the spiral spring to effect its compression for the purpose hereafter described.
The tubular portion of the winged lever and the tube passing through same are
provided with a slot on each side which when the winged lever is placed transversely
to the bed-plate are directly opposite a similar slot on each side of the fixed collar and
thereby forms a continuous slot.
The spring encircled pin is provided with a lug or equivalent on each side and when
the pin is in its elevated position (which is the case when the length of the winged
lever is placed in the same direction as that of the base-plate) these lugs are inside the
fixed collar and their outward ends are preferably flush with the peripheral edge of
the fixed collar, but immediately the winged lever is placed in a position transverse to
the base plate the lugs, under the influence of the spring encircling the pin, at once
seek their lowered position and descend into the slots in the tubular part of the
winged lever and the tube enclosed therein and will firmly and rigidly retain the
winged lever in that position until such time as the spring-encircled pin and lugs are
lifted by hand into their elevated position when the winged lever can be freely rotated
or placed in its former position to enable the window frame to be raised. When the
winged lever is placed in its transverse position as mentioned one of its wings extends
over the top of the meeting rail of the lower sash and thereby prevents it being raised
and the window opened.
COMPLETE SPECIFICATION.
A New or Improved Fastener for Window-sashes, Shutters, Doors,
and the like.
1, JAMES HEARTH of 124 Church Gate, Leicester, Manufacturer, 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 :-
This invention has reference to a new or improved device or contrivance for
fastening window sashes, doors, and the like, the particular construction and operation
[21

page_text: of which may be gathered from the following Specification in reference to the accom-
panying drawings, in which
Figure 1 represents in front elevation my improved fastener fitted on to the meeting
rail of the upper window sash, and shewing the position of the fastener when the
window is closed and secured thereby.
Figure 2 is a side elevation of the fastener detached and
Figure 3 is an elevation of the same principally in section.
Figures 4 and 5 are respectively, elevation and plan partly in section of a
modification and
Figure 6 is an elevation partly in section of a further modification.
Similar parts are indicated by the same letters of reference throughout the drawings.
Referring to Figures 1, 2 and 3, A is the base plate which is secured to the meeting
rail by screws A¹.
On the upper face of the base plate A is a boss B reduced in circumference in its
central part B (as shown in Figure 3) to permit of the tubular part C¹ of the wing
lever C fitting and being free to rotate thereon.
The upper part B² of the boss B is enclosed by a collar B³ between which and the
lower part of the boss B the tubular portion of the winged lever C is supported
and allowed to move in a horizontal plane.
A pin or spindle D passes through the boss B₁, tubular part of the winged
lever C, and collar B³, the upper part of the pin D projecting above the whole and is
formed with or has fitted thereon a head D¹.
The lower portion of the stem of the pin D is encircled by a spiral spring D² while
the lower end is adapted to receive or have secured thereon a head 103 enlarged
sufficiently to form a bearing surface for the lower end of the spiral spring D²
while the upper end of the said spring is in contact with the boss B¹.
The tubular portion of the wing-lever C and the upper part B* of the boss B are
provided, respectively, on each of their sides with a slot or opening C2 and B,
Figures 2 and 1 respectively, which, when the lever C is placed transversely to the
bed plate A, as shown in Figure 1, are directly opposite a similar slot on each side of
the collar B3 and thereby form a continuous slot.
The spring-encircled-pin D is provided with a lug or projection 14 on each side,
and when the pin is in its elevated position, as shown in Figure 2, (which is the case
when the length of the wing-lever and the base plate A extend in the same
direction), these lugs D are inside the collar B3 and their outward ends are preferably
flush with the peripheral edge of the collar, as in Figure 1, but immediately the
wing-lever C is moved into a position transverse to the base plate, as indicated in
Figure 1, the pin D under the influence of the spiral spring D2 at once seeks its
lowered position and the lugs descend into the slots C in the tubular part C, and the
fixed boss B¹, and the lever C will be firmly and rigidly retained in that position until
the spring-encircled pin D and lugs D are lifted by hand into their elevated position,
when the wing-lever can be moved and placed in the position shown in Figure 2 to
enable the window sashes to be raised or lowered.
The modification, shown in Figures 4 and 5, in construction and operation is
substantially the same as Figures 1, 2, and 3, the essential points of difference being
the spiral-spring D² encircles the upper instead of the lower end of the pin D, and the
whole is enclosed by an outer cylindrical case F which is cut away at its lower end
for about one fourth of the circumference, as shown most clearly in Figure 5, so that
whether the wing-lever C be moved into position for keeping the window secure, as in
Figures and 5, or otherwise the side of the said lever is in contact with one of the
edges F F of the cylindrical case F, the latter being secured to the bed A by
screws F3 or other means.
In order to move the wing-lever C into or out of its operative position it is necessary
first to elevate the pin by hand so that the lugs D are clear of the slots C2 of the
tubular portion C¹.
In the modification illustrated in Figure 6 the wing-lever C can only be released by
'depressing the pin D so as to bring the lugs D₁ on to the bed plate A

page_text: The spring D being held in position between the bottom of the pin D and a
recess A in the base plato A.
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
1. In a device or fastening for window sashes, doors, and the like the combination
with a base plate such as A, and boss such as B, B₁ of a lever such as C, C, C substan-
tially as described and illustrated in the accompanying drawings.
2. In a device or fastening for window sashes, doors, and the like, the combination
with a base plate A, boss such as B, B', and lever such as 0, 0, 0³ of a spring-encircled-
pin such as D, D³, D' and collar B³ substantially as described and illustrated in the
accompanying drawings.
3. A device or fastening for window sashes, doors, and the like consisting of a base
plate A, boss B, B' lever such as C, C. C², spring-encircled-pin D, D3, D', and collar B³
substantially as described and illustrated in the accompanying drawings.
4. A device or contrivance constructed, arranged, and operating substantially in
the manner and for the purpose described and illustrated in Figures 1, 2 and 3 of the
accompanying drawings.
5. A device or contrivance constructed, arranged, and operating substantially in
the manner and for the purpose described and illustrated in Figures 4 and 5 of the
accompanying drawings.
6. A device or contrivance constructed, arranged, and operating substantially in the
manner and for the purpose described and illustrated in Figure 6 of the accompanying
drawings.