IMPROVEMENTS IN CASEMENT STAYS OR APPARATUS FOR OPENING, ADJUSTING, CLOSING, AND SECURING ANY OBJECT HUNG ON HINGES OR CENTRES, AS CASEMENTS, FANLIGHTS, LOUVERS, VENTILATORS, LANTERN & SKY LIGHTS AND DOORS ARE
Year: 1877

page_text: LETTERS PATENT to Robert Adams, of 216, & at 7, Great Dover Street,
Southwark, in the County of Surroy, for the Invention of "IMPROVEMENTS IN
CASEMENT STAYS OR APPARATUS FOR OPENING, ADJUSTING, CLOSING, AND
SECURING ANY OBJECT HUNG ON HINGES OR CENTRES, AS CASEMENTS,
FANLIGHTS, LOUVERS, VENTILATORS, LANTERN & SKY LIGHTS AND DOORS ARE"
PROVISIONAL SPECIFICATION left by the said Robert Adams at the Office
of the Commissioners of Patents on the 4th April 1877.
ROBERT ADAMS, of 216, & at 7, Great Dover Street, Southwark, in the County of
Surrey. "IMPROVEMENTS IN CASEMENT STAYS OR APPARATUS FOR OPENING,
ADJUSTING, CLOSING, AND SECURING ANY OBJECT HUNG ON HINGES OR CENTRES, AS
CASEMENTS, FANLIGHTS, LOUVERS, VENTILATORS, LANTERN & SKY LIGHTS AND
DOORS ARE.
33
The object of my Invention is to construct a neat, safe, adjustable, and
sympathetic stay or apparatus for opening, regulating, and securing at any
elevation, objects hung on hinges or centres vertically or horizontally by a screw
movement, variously applied to suit the different architectural arrangements of
casements, fanlights, louvers, ventilators, and the like, all of which I will herein-
after briefly designate casements or lights.
The sympathetic stay or apparatus I construct for this purpose is a combination
of screw or fulcrum acting on and in union with a rack, quadrant, or lever, and
may be fitted to either of the stiles or rails and corresponding frame of any
casement that opens with a vibrating or lateral motion hung vertically or
horizontally.
When the stay, or apparatus which I will herein-after call a stay, is made to fold
up on or between the face of the casement and rebate on the frame and within reach,
one end of the stay being jointed to the sill or frame, the other end is jointed to the
rail or stile; a screw acting on a fulcrum or lever or direct on the joints locks the
casement at any desired angle, the said joints being made lateral and vibrate
resisting, but when a rack or screw quadrant is prefered the worm fitting and being
Prins A71

page_text: made to revolve by a suitable method on or at right angles of the same adjusts or
secures the casement as desired; but when the stay is fixed out of reach it is
caused to vibrate or ply to or fro with the fulcrum of the stay, being jointed to a
lever, crank, rack, plain or threaded rod, and mounted with a pully, tooth, worm or
threaded wheel revolving in a fixed path by pulling a cord as applied to blinds or
raising, lowering, or turning a rod in union with the above by gearing, lever, screw,
or other suitable arrangement secures or adjusts the casement in its opening.
When the stay is mounted with a wheel or boss on its swing end it traverses a
guiding slot; thus when a casement is hinged horizontally (and when convenient)
by fixing the stay so that as it moves either way it lifts or causes the casement
to move in the opposite direction one is a counterballance for the other.
The stay may be made either flexible, rigid, or folding jointed, when fixed to
either of the rails or stiles and corresponding frame of a casement in opening the
flexible stay springs and resembles a radius line shape, and if hinged on edge
horizontally its woight is resisted by the spring so charged, or a spring may be
otherwise applied to resist its weight, of flat, spiral, or coil shape, or as most con-
venient to a quadrant.
The jointed stay is sometimes made with compound joints; this, as also the rigid
stay, may be used in pairs on heavy casements, and worked simultaneously by a
worm acting on and turning the ends suitably mounted and jointed to the frame, or
by a rod conveying the movement from side to side or other suitable arrangement,
the connection being made and worked as before described.
In applying my stay to open and close lantern or continuous lights simultaneously
one end is jointed or linked to the casement, the other to a traversing or vibrating
shaft which may be continued from side to side by links or cranks at the angles,
the said shaft being propelled by a crank pin or connecting rod on worin wheel and
worm, or as described, thus adjusting the lights in their opening for ventilation,
cleaning, &c.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Robert Adains in the Great Seal Patent Office on the 16th October
1877.
ROBERT ADAMS, of 216, Great Dover Street, and at 7, Great Dover Street,
Southwark, in the County of Surrey. "IMPROVEMENTS IN CASEMENT STAYS OR
APPARATUS FOR OPENING, ADJUSTING, CLOSING, AND SECURING ANY OBJECT HUNG
ON HINGES OR CENTRES, AS CASEMENTS, FANLIGHTS, LOUVRES, VENTILATORS,
LANTERN AND SKY LIGHTS AND DOORS ARE."
The object of my Invention is to construct a neat, safe, adjustable, and
sympathetic stay or apparatus for opening, regulating, and securing at any
clevation, objects hung on hinges or centres vertically or horizontally, by a screw
movement variously applied to suit the various architectural arrangements of
casements, fanlights, louvres, ventilators, and the like, all of which I will herein-
after briefly designate casements or lights.
The sympathetic stay or apparatus I construct for this purpose is a combination
of screw and fulcrum acting on and in union with a rack, quadrant, or lever, and
may be fitted to either of the stiles or rails and corresponding frame of any
casement that opens with a vibrating or lateral motion hung vertically or
horizontally.
When the stay, or apparatus which I will herein-after call a stay, is made to fold
up on or between the face of the casement and rebate on the frame or joint of the
same, and within reach, one end of the stay being jointed to the sill or any other
part of the frame, the other end is jointed to the rail or stile; a screw acting direct
or on a fulcrum or lever locks the joints and casement at any desired angle,

page_text: in some cases the joints are made more lateral and vibrating resisting by uneven
surfaces, known as convex and concaves; but when a rack or screw quadrant is
preferred the worm fitting and being made to revolve by a suitable method on or
at right angles of the same securely adjusts the casement at any desired angle; but
when the stay is fixed out of reach it is caused to vibrate or ply to or fro with the
fulcrum of the stay, being jointed to a lever, crank, rack, plain or threaded rod, and
mounted with a pulley, tooth, worm or threaded wheel, revolving in a fixed path,
by pulling a cord as applied to blinds, or raising, lowering, or turning a rod in
union with the above by gearing lever, screw, or other suitable arrangement,
secures or adjusts the casement in its opening.
When the stay is mounted with a wheel or boss on its swing end it traverses a
guiding slot; thus when a casement is hinged horizontally and when convenient by
fixing the stay so that as it moves either way it lifts or causes the casement to
move in the opposite direction, one is a counterballance for the other.
The stay may be made either flexible, rigid, or folding jointed, when fixed to
either of the rails or stiles and corresponding frame of a casement in opening the
flexible stay springs and resembles a radius line shape, and if hinged on edge
horizontally its weight is resisted by the spring so charged, or a spring may be
otherwise applied to resist its weight, of flat, spiral, or coil shape, as most
convenient.
The jointed stay is sometimes made with corresponding joints; this, as also the
rigid stay, may be used in pairs on heavy casements, and worked simultaneously
by a worm acting on and turning the ends suitably mounted and jointed to the
frame, or by a rod conveying the movement from side to side or other suitablo
arrangement, the connection being made and worked as before described.
In applying my apparatus to open lantern and continuous lights simultaneously,
one end is jointed or linked to the casement, the other end to a traversing or
vibrating shaft, which may be continued from side to side by links, wheels, or
cranks at the angles, the said shaft being sometimes propelled by a crank action
and connecting rod on a worm wheel and worm, and sometimes as for the ordinary
fanlight described, thus adjusting the lights in their opening for ventilation, &c.
Having now described the nature of my Invention, and the manner it is
performed, I would have it understood the size and leverage is proportioned to its
requirements, but the advantages I claim are the screw movement, easy and safo
lever action, and modes of adjustment.
In witness whereof, I, Robert Adams, have hereunto set my hand and seal,
this Fifteenth day of October, One thousand eight hundred and seventy-
BAWAN
(L.S.) ROBERT ADAMS.