Improved Apparatus for Opening, Closing, Securing, and Adjusting Fanlights, Skylights, and Swing Sashes and the like.
Year: 1891

page_text: Date of Application, 29th July, 1891
Complete Specification Left, 29th Apr., 1892-Accepted, 4th June, 1892
PROVISIONAL SPECIFICATION.
Improved Apparatus for Opening, Closing, Securing, and Adjusting
Fanlights, Skylights, and Swing Sashes and the like.
I, DAVID OSBORN of Berkhamsted in the County of Hertfordshire, Builder do
hereby declare the nature of this invention to be as follows :-
According to this invention I suitably connect to the frame a cylinder or sleeve
of metal in which I fit a screw running its full length capable of rotating in such
cylinder On one side of said cylinder or sleeve I form two slots to enable a worm to
work up and down on said screw and on the top of said cylinder I fit a toothed or
friction quadrant so as to work in or against another quadrant fitted or formed at
one end of an arm jointed to the sash I also joint two brace arms to the last
mentioned arm and to the worm so that upon the aforesaid screw being rotated by
suitable means the sash will open and be held at any desired angle.
Dated this 20th dan of Tu1 1001
BROWNE & Co.,
60, Chancery Lane, Agents for Applicant.
COMPLETE SPECIFICATION.
Improved Apparatus for Opening, Closing, Securing, and Adjusting
Fanlights, Skylights, and Swing Sashes and the like.
1 DAVID OSBORN of Berkhamsted in the County of Hertfordshire, Builder, 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:
-
According to this invention I suitably connect to the frame a cylinder or sleeve
of metal in which I fit a screw running its full length capable of rotating in such
cylinder On one side of said cylinder or sleeve I form two slots to enable a worm to
work up and down on said screw and on the top of said cylinder I fit a toothed or
friction quadrant so as to work in or against another quadrant fitted or formed at
one end of an arm jointed to the sash. I also joint two brace arms to the last
mentioned arm and to the worm so that upon the aforesaid screw being rotated by
suitable means the sash will open and be held at any desired angle.
And in order that my said invention may be fully understood I will describe the
same with reference to the accompanying sheets of drawings in which
Fig. 1. shews side elevation of apparatus fully open. Fig. 2 top plan of Fig. 1.
Fig. 3. shews side elevation of apparatus in closed position.
Figs. 4. 5. 6. and 7. are details hereafter referred to.
The same letters are employed to denote the same parts in all the views.
a. a¹ shews two flat pieces of metal hinged together at b. c. d. by means of the
triangular pieces e. e. ff. are two links one end of each being pivotted at d. and
the other end at g. so that such links may slide along the slot . in the aforesaid
piece a¹ when operated as hereafter described. is a screw which actuates the
piece so as to move it backwards and forwards k is a pulley wheel fastened on to
the head of the screw i. 1. shews small pullies between which the cord m. m¹ passes.
The piece a¹ turns vertically on the joint a² of the bracket piece n. which latter is
screwed to the frame in which the sash works the end of the piece a. having also a
bracket piece o. pivotted to it at p.
The action is as follows.
Supposing the apparatus to be fitted to a sash which would be effected by

page_text: screwing the bracket piece o. on to the sash and the bracket n. on to the sash
frame upon pulling the cord m. m' the screw i. screws in the piece j. thus causing
this piece to slide along the slot in the piece a¹ and pushing or pulling over the
triangular pieces e. e. by means of the two links f. f. and at the same time turning
the quadrant r. at the end of the piece a. pivotted at c. the teeth of which engage
with the other quadrant pivotted at b. so as either to open or close the sash
according to which cord is pulled i.e. on pulling the cord m. the sash will open and
on pulling the cord m³ the sash will close and assume the positions shewn in Figs. 1
and 3 respectively the sliding piece j coming against the shoulder s. when closed so
as to prevent the screw from being turned round further. In closing the sash the
piece a¹ rotates on joint a² of bracket piece n causing it to assume a vertical position
and in opening the sash from the vertical to the horizontal position.
Instead of operating the screw i by means of the cord m it may be operated as
shewn in the detail views at Figs. 4. 5 and 6-Fig. 4 shews elevation Fig. 5. end
view and Fig. 6 vertical section t. t¹ shew bevel gearing the wheel t. being keyed
on to a vertical rod u. so that as this latter is rotated the screw or worm v. keyed
on to bevel wheel t. will turn and thus actuate the screw i. by means of the worm
wheel with which it engages fixed to screw i. and affecting the opening and closing
as before described when a cord is used. Fig. 7. shews end elevation of bracket
piece n.
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 apparatus for opening, closing, securing, and adjusting fanlights, skylights,
swing sashes, and the like, the combination of two quadrants and the triangular
pieces e. e., screw i. and links f. f. all substantially as and for the purposes
described.
2. In apparatus for, opening, closing, securing and adjusting fanlights, skylights,
swing sashes, and the like. The joint a² of a¹ rotating on the bracket n. substantially
as described.
3. In apparatus for opening, closing, securing, and adjusting fanlights, skylights,
swing sashes and the like. The modifications shewn at Figs. 4. 5. and 6. sub-
stantially as set forth.
4. Apparatus for opening, closing, securing, and adjusting, fanlights, swing sashes,
and the like, constructed and operated substantially as described.
Dated this 29th day of April 1892.
BROWNE & Co.,
9, Warwick Court, Gray's Inn, W.C., Agents for Applicant.