Improved Window Sash Holder.
Year: 1891

page_text: Date of Application, 17th Feb., 1891
Complete Specification Left, 17th Dec., 1891-Accepted, 6th Feb., 1892
PROVISIONAL SPECIFICATION.
Improved Window Sash Holder.
I JOSEPH THOMAS NICHOLLS Ironfounder, of 164 Lower Charles Street
Northampton Square, Clerkenwell in the County of Middlesex, do hereby declare
the nature of this invention to be as follows:-
My invention consists of additions made in the construction of the " new window
sash holder" for which a Patent was granted to me Nov. 10th 1888, No. 16285.
1. A metal plate with box on one side is fastened to the centre of the upper sash
rail inside the carriage.
2. Forming the upper part of the box is a movable pivoted suitably shaped
thumb piece.
3. A movable metal piece jointed on the back of the plate 1 at one end and acted
on by the inside of the thumb piece 2.
4. A straight metal bolt long enough to extend almost to the side of the sash
frame acts horizontally and is drawn forward by the lifting piece 2 a hole is made
in the upper sash-rail to admit the said bolt.
5. A short metal bar, with a rivet-joint about the centre, acting in a case, is
placed vertically in the side of the sash frame. At the lower part of the case is
attached a small spring to keep the bar forward, thus forming the catch to hold the
sash in position.
6: A flat metal plate with perforation into which the bar 5 falls is fastened on
the door pillar Aush with the sliding surface.
By pressing down the projecting piece 2 the bar 5 is withdrawn and releases the
window sash.
To prevent dust or water entering the well or pit of the door a long strip of
metal is placed along the fence-rail this strip is suspended at each end on the door
pillars, a projecting piece is fixed in the window sash to lift the suspended strip into
a groove in the window sash when the window is closed.
17th day of February 1891.
JOSEPH THOMAS NICHOLLS.
COMPLETE SPECIFICATION.
Improved Window Sash Holder.
I JOSEPH THOMAS NICHOLLS Iron-founder 16 Charles Street Northampton
Square Clerkenwell in the County of Middlesex 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:-
My invention consists of additions made in the construction of the new window
sash holder for which a Patent was granted to me Nov. 10th 1888, No. 16285.
(Fig. 1) railway carriage door with (filled) window sash holder, shewing the
additions of my invention in section, (a).
(b) metal plate with box on one side fastened to the centre of the upper sash rail
inside the carriage door,-see also enlarged Figs. 2 & 3.
Forming the upper part of this box, is a movable pivoted thumb-piece, shewn in
dotted lines also in Figs. 8 and 9. This thumb-piece is jointed on the back of the
plate (b) shewn in dotted lines (c).
A straight metal rod (d Fig. 1) and Fig. 10, long enough to extend to the side
of the sash frame, acts horizontally in a hole in the sash.

page_text: Fig. 4 & 5 movable metal piece jointed on the back of plate Fig. 2, this is acted
on by the thumb piece Figs. 8 & Fig. 6 being thereby pressed forward.
Figs. 13 & 14 metal box (shewn in e Fig. 1) containing metal piece with pivot,
this is kept in an oblique position by a small spiral spring shewn in Fig. 13 acting
on the piece pressing it forward horizontally.
The metal plate (e) is fastened to the window sash, flush with the sliding side at
the upper corner.
Figs. 15 & 16 flat metal plate with perforations to admit the projecting part of
piece (Fig. 11) when in an oblique position. When the piece (Fig. 11) is
vertically placed by the pressure of the thumb piece the sash is released.
Having now particularly described and ascertained the nature of my said
invencion and in what manner the same is to be performed I declare that
what I claim is
The application to the improved window sash holder, of the aforementioned
invention as herein described.
Dated this 17th day of December 1891.
JOSEPH THOMAS NICHOLLS.