Improved Window Fastener.
Year: 1895

page_text: Date of Application, 5th Sept., 1895
Complete Specification Left, 4th June, 1396-Accepted, 8th Aug., 1896
Improved Window Fastener.
We FRANK EDWARD MCGRAH, Clerk, of 300 Abbeydale Road and FREDERICK
WILLIAM MCGRAH, Mechanic of 137 Pinstone Street both of Sheffield in the
County of York do hereby declare the nature of this invention to be as follows:-
Our invention consists in making a window fastener which acts automatically.
On or through the top bar of bottom sash we place a tube containing a plunger or
bolt which is held in position by a spiral spring and on the bottom bar of top sash
we place a plate with a hole or socket in, which pushes the plunger or bolt back
until it comes to the hole or socket into which it springs and so secures the
window.
Dated this 4th day of September 1895.
FRANK EDWARD MCGRAH.
FREDERICK WILLIAM MCGRAH.
We FRANK EDWARD MCGRAH Clerk and FREDERICK WILLIAM MCGRAH
Mechanic both now of 40 Button Lane Sheffield in the County of York, late of
300 Abbeydale Road and 137 Pinstone Street Sheffield 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:-
Our invention consists in making a window fastener which acts automatically.
On or through the top bar of bottom sash we place a tube cast or otherwise
containing a bolt or plunger turned or cast smaller at one end to hold a spiral
spring and on the bottom bar of top sash we place a plate bent or bevelled or such
other shape with a hole or socket in it. The spring pushes out the bolt which
rides upon the plate when the window is being closed until it comes to the hole or
socket into which the spring forces it and so secures the window. In order to stop
the rattling of sashes by wind or otherwise we tap the bolt or plunger and hole or
socket so that the bolt or plunger after being sprung into position by the spiral
spring, by screwing draws the sashes together and so prevents rattling.
In order that our invention may be more clearly understood we refer to drawings
herewith.
Fig. 1. shews the sashes fastened by fastener through the sash.
Fig. 2. shews the plate which is fastened inside bottom bar of top sash A is the
hole or socket.
Fig. 3. shews the bolt or plunger in the tube.
Fig. 4. shews the fastener on the sashes F is the top sash and G the bottom
sash.
Fig. 5. is the plate fastened on the top sash.
Fig. 6. shews a section of the tube containing bolt or plunger fastened on the
bottom sash. B is the bolt or plunger C the spiral spring and D the screw
thread.

page_text: Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is
1. A window fastener with a spring bolt or plunger and plate with hole or
socket to automatically fasten the window when closed as herein set forth and
described.
2. The same with a screw thread on each bolt or plunger and hole or socket so
arranged that after the bolt or plunger has sprung into its position the sashes may
be secured together to avoid rattling by wind or otherwise as herein set forth and
described.
Dated this 3rd day of June 1896.
FRANK EDWARD MCGRAH.
FREDERICK WILLIAM MCGRAH.