IMPROVEMENTS IN WINDOW FASTENINGS
Year: 1885

page_text: I JOHN SIMMONS of 90 Shardeloes Road New Cross in the Parish of Saint Paul
Deptford in the County of Kent, Engineer, do hereby declare the nature of my
invention for "IMPROVEMENTS IN WINDOW FASTENINGS" and in what manner the
same is to be performed, to be particularly described and ascertained in and by the
following statement :-
In the manufacture of the "Improved Window Fastenings" which are the
object of this invention I can use either rolled metals be the same Brass, Copper,
Iron, or, other metal, or I can use cast metals for the same purpose, I form an outer
case or shell of metal which is fixed upon one part of the window sashes (whether
the same be sliding or otherwise) by means of screws or other methods, this case
or shell contains a bolt which slides in the said case or shell and is actuated by a
lever which vibrates upon a stud fixed in the case, the bolt is connected with the
lever by a pin or stud fixed in the said bolt and passing through a slot in the case
to the lever, the slot in the case is sufficiently long to allow the required travel of
the bolt, the lever has also a small slot where the stud passes from the bolt, to
allow for the vibration of the lever from the line of the travel of the bolt, when by
a movement of the lever the bolt is entirely within the case or shell carrying
the said lever the window will be unfastened, a reverse movement of the lever
will cause the bolt to protrude and enter another case or shell, fixed upon the
corresponding part of the window sash and by this movement the window will be
secured.
The accompanying sheet of drawings will shew clearly the action of this
"improved Window Fastening."
Figure 1 is a plan of the two cases or shells A & B, but with the lever and bolt
removed.
Figure 2 is a plan of the case A. that is the case or shell carrying the lever and
bolt the said bolt being shewn protruding from the case as when in fastened
position.
Figure 3 is a plan of the "improved fastening," complete, A, & B, the two cases
or shells, C. the lever, D the bolt shewn by dotted lines in this figure, E, the slot
in the case A, to allow of the travel of the bolt, F is a small slot in the lever to
allow for the vibration, G. is the stud upon which the lever vibrates, H. is a stud
which is firmly fixed in the bolt D. and connects the same with the lever,-I. is a
small spring acting upon the end of the lever next to the stud, the case B. in this

page_text: figure 3. is shown open ended, it can be made as in this figure or closed at the end
as shewn at B. in figures 1. 4 & 11, the position in this figure 3 shews that the
window is fastened.
Figure 5. is an elevation of the case A. in figure 1, the lever and bolt removed.
Figure 6. is an elevation of the case A figure 11.-Figure 7. is an elevation of the
open ended case B. in figure 3.
Figure 8 is a plan and figure 9 is an elevation of the bolt D. with fixed stud H.
Figure 10. is an elevation of the case B, as shewn in figures 1. 4 & 11.
Figure 11. represents the "improved window fastening" in the position it will
be in when the window is unfastened.-The movement of the lever is shewn by the
dotted radial lines a to b. when the end of the lever is at a the window will be
unfastened, when it is at b the window will be fastened.
I do not confine myself to the precise shape and make shewn in my "improved
window fastening" as that will have to be varied frequently in order to suit
different situations and requirements.
"Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is "
The combination, substantially as herein before set forth of a bolt sliding in an
outer case or shell (marked A. in the drawings) and connected with a lever which
is mounted upon the said outer case or shell, by means of a stud which is fixed at
one end in the bolt the other part of the said stud passing freely through a slot in
the case and also through a slot in the lever, thus connecting the bolt with the
lever when by moving the lever the bolt will be moved in or out (as desired) of
the case or shell marked B in the drawings.
Dated this 4th day of November 1885