RESERVE Applicable to Windows and the like.
Year: 1886

page_text: Date of Application, 10th Nov., 1886.
Complete Left; 9th Aug., 1887.
Complete Accepted, 9th Sept., 1887.
RESERVE
Applicable to Windows and the like.
I, WALTER SARGENT of 17 Rosoman Street Clerkenwell in the County of Middlesex
Glass Worker do hereby declare the nature of this, my said invention to be as
follow's
This Invention relates to Improvements by means of which, the circular glass cover
of the ventilator is more easily manipulated; the slot, in the glass cover of the
ordinary circular glass ventilators is entirely dispensed with, as well as the stop pin in
the fixed glass plate, which is a source of trouble to every one who has to open or
shut the said ventilator, by reason of there being nothing to prevent the circular
revolving plate from being pulled over against the stop pin with sufficient force to
crack or break the fixed glass plate.
To obviate this I have arranged a spindle with a flange, having an oval or oblong
boss which fits into the fixed glass plate, the spindle projecting through; & passing
over on to this said spindle, I have another moveable flange, with another oval boss,
upon which the circular glass cover is placed. Between the two oval bosses, I have
arranged a double stop which only allows the circular glass cover to revolve a quarter
of a turn.
By this means, I entirely dispense with the slot & stop pin herein before described
& remove all the strain from off the glass plates onto the centre spindle & flanges.
Within the two flanges which are cupped out, I fix a spiral spring, by means of
which I obviate the necessity of having two cords, one to shut, & one to open the
ventilator, as I only need one cord to open it, the spiral spring performing the
operation of closing.
The whole of the aforesaid mechanism is held together by means of a screw passing
through the moveable flange into the spindle, the said screw at the same time acting
as a means of adjustment for different thicknesses of glass of which different ventilators
may be made.
Dated this 10th day of November 1886

page_text: I, WALTER SARGENT, formerly of 17 Rosoman Street, Clerkenwell, but now of
32 Western Road Wood Green, N. Glass Worker, 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:-
This invention relates to improvements by means of which circular or other shaped
glass ventilators are securely affixed to a window or other suitable place, and also by
which all breaking strain is entirely removed from the glass and cover, and taken
up by the centre boss. To illustrate this invention I furnish the accompanying
drawings :-
Fig. 1 representing an elevation of a sheet of glass, with the ventilating cover (2)
closed, and shewing the improved shape of my ventilating slots 3. The cover 2
revolving sufficiently to open or close the aforesaid slots.
Fig. 2 represents a plan of the same.
Figs. 3 & 4 represent sectional elevations of the two flanges 7, 7, and oval
bosses 13, 13, and spindle 4 also shewing the arrangement of the spring for self-
closing, and shewing a section of the lips 8, 8, on the aforesaid oval or other
shaped bosses, which by means of the screws 11, 11 hold the glass plates firmly to the
flanges 7, 7.
Fig. 5. represents a sectional plan of Fig. 4.
Fig. 6 represents a complete plan of a flanged spindle 1 and flanged nut 3 made to
fit over the spindle 1, the flanged nut 3 being fixed in the fixed glass plate by means
of a lipped boss 4, the fixed glass plate having ventilating slots in it. The circular
glass cover being carried by the flanged spindle 1 and having no ventilating slots;
the spindle carrying it having a spiral 8 cut along it, into which the pin 7 works; a
half-turn being sufficient to draw the ventilator cover away, leaving the ventilating
slots free to admit the air. The glass plates are shewn in section. Fig. 7 represents
an elevation of Fig. 6.
To accomplish the aforesaid improvements I make a flanged spindle 4 Fig. 4, the
spindle 4 passing through an oval or other suitably shaped hole in the glass plate 1
Fig. 1. until the flange 7. Figs. 2 and 4 touches the glass, to fasten the glass plate 1.

page_text: to this flange 7. I have a boss 3. Figs. 3. & 4. which fits the centre hole in the glass,
plate and having inclined. lips 8, 8, Fig. 4. which work in similarly inclined recesses
in the glass plate, the glass being securely fastened between the boss 13, and the
flange 7, by means of two screws 11, 11. Fig. 4. The circular glass cover 2 being
held in the same manner by a similar boss and flange, excepting that the flange 7 is
bored out and fits over the spindle 4 Fig. 4.
The two flanges 7, 7 Figs. 3 and 4. are cupped out to hold spiral spring 9. Fig. 4
the ends of which when the ventilator is together touch the two stop pins 10, 10,
Figs. 3. & 4. so that whenever the cover is revolved sufficiently to admit the air; the
spiral spring is pressed open, and directly the cord or other, suitable fastening which
holds the ventilator open is released, the spiral spring carries the circular glass cover
back again, and so automatically closes the ventilator. The said spiral spring can
also be made to open the ventilator instead of closing it, by a different arrangement
of the stop pins 10, 10, Figs. 3. and 4. so that the circular glass cover shall not move
further than just completely to open or shut the aforesaid ventilating slots 3. I arrange
on the lipped boss 13, Fig. 4. some raised stops 12, Fig. 4 which work in recesses in
the opposite boss 13, Fig. 3.
Fig. 1. represents the ventilator in working order, and with the ventilating slots
closed, the flange 7, having a lever or arm 5. Figs. 1. and 2. which is a prolongation
of the handles 6, 6, Figs. 1, 2, and 3, being used only when the ventilator is out of
reach of the hand. Through a hole in the end of the aforesaid arm a cord 14. Fig. 1.
is passed running to the side of the window frame, and down over a small pulley until
within reach of the hand, so that to open the ventilator you pull the cord and slip it
over a hook or other suitable fastening on the window frame. To close the ventilator
you simply unhook the cord, when the spiral spring carries it back.
I will now further describe Figs. 6 and 7. The flanged spindle 1. Fig. 6. carrying
the circular or other suitably shaped glass cover 6 in which there are no ventilating
slots, and the flanged boss or nut 3. Fig. 6. being fixed to the fixed plate or window 2.
by means of the lipped boss 4. Fig. 6. The spindle 1. Fig. 6. has a spiral 8 or thread
cut in it, the spindle itself fitting the hole in the nut 3. Inside this hole in the nut 3.
Fig. 6. is a pin 5 which fits into the spiral of the spindle, so that when the spindle is
revolved one way, the cover 6 is withdrawn from the ventilating slots 7 in the fixed
glass plate allowing free ingress and egress, for the air, but at the same time
preventing any direct draught. For opening and closing this ventilator I can use
two small pulleys 10, 10, Fig. 6. one to open and one to shut, with cords wound
round them, so that by just pulling the cord, a circular motion is communicated to
the cover, or by the aforesaid lever and cord or handle. The shape of the ventilating
slots 7 Fig. 7 is an improvement, as it leaves the glass stronger at the centre than
hitherto.
I wish it to be distinctly understood that I do not confine myself to that one shape,
or to any given number of slots. I also wish it to be understood that I dispense
with the spiral spring 9 and the extended arm 5, fig.
& cord 14 when the ventilator
is within reach.
Having now particularly described and ascertained the nature of this my said
Invention and in what manner the same is to be performed I do declare that what I
claim is :-
1. The oval or other suitably shaped bosses 13, 13, Figs. 3. and 4. having inclined
or other suitably shaped lips 8, 8, Fig. 4. and also having the stops 12, 12, Figs. 3
and 4 as herein before described.
2. The combination of the spiral spring 9 with the stop pins 10, 10, Figs. 3.
and 4. by means of which the ventilator can be opened or shut as herein before
described.
3. The peculiar shape of the ventilating slots which allow of the glass plates being
stronger.
4. The combination of lever and handle with the cord for opening and shutting the
said ventilator.

page_text: 5. The combination of two pulleys 10, 10, Fig. 6 with cords wound round them for
opening and shutting the ventilator as hereinbefore mentioned.
6. The glass cover 6, Figs. 6 & 7 for ventilator having no holes in it except the
centre hole.
.
7. The combination with the nut 3. Fig. 7 with the spiral cut spindle 1. Fig. 7. by
means of which the ventilating cover is withdrawn from the holes.
8. The combination with the spiral cut spindle 1. Fig. 6 of a suitable spring for
opening or closing the said ventilator:
13