IMPROVEMENTS IN ATTACHING THE INSIDE HANDLES OF CARRIAGE DOORS TO THEIR SPINDLES, WHICH IMPROVEMENTS MAY ALSO BE APPLIED TO THE ATTACHING OF OTHER HANDLES OR KNOBS TO THEIR SPINDLES
Year: 1877

page_text: PROVISIONAL SPECIFICATION left by Charles Unitt at the Office of the
Commissioners of Patents on the 3rd October 1877.
CHARLES UNITT, of Harborne, in the County of Stafford, Coach Harness
Furniture Manufacturer. "IMPROVEMENTS IN ATTACHING THE INSIDE HANDLES OF
CARRIAGE DOORS TO THEIR SPINDLES, WHICH IMPROVEMENTS MAY ALSO BE APPLIED
TO THE ATTACHING OF OTHER HANDLES OR KNOBS TO THEIR SPINDLES."
My Invention consists of the construction and arrangement of parts herein-after
described for attaching the inside handles of carriage doors to their spindles,
whereby the attaching of the said handles to, and their adjustment on their
spindles to suit doors of different thicknesses are effected in a simple and efficient
manner.
My Invention may also be applied to ordinary door and other knobs or
handles.
I will describe my Invention as applied to the inside handle of a carriage door :-
I make the boss or barrel to which the inside handle is connected tubular, and in
the said tubular boss or barrel I place a long screw box capable only of a rotatory
motion in the said boss or barrel. At the rear end of the said screw box is a collar,
which works in a circular depression in the rear end of the boss or barrel, the
sliding of the screw box in the boss or barrel is thereby prevented.
The outer or
front end of the screw box projects beyond the outer or front end of the boss or
barrel, and on the said front end of the screw box a nut or angular head is fixed.
The said screw box works so tightly in the boss or barrel that it can only be turned
by a grip or spanner applied to the external nut or angular head. At the rear end
of the boss or barrel a square hole is made of a size proper to receive the square
spindle of the handle. By means of the square rear part of the boss or barrel the
latter can slide, but cannot turn upon the spindle. The square. spindle is screwed
on its angles, the screw thread being of a size proper to take into the internal screw
thread of the screw box in the boss or barrel.
In attaching the inside handle to its spindle the length of the said spindle is first
adjusted to the thickness of the door, and is then passed through the carriage door,
and the boss or barrel of the inside handle is passed by the square hole at its rear
end on to the end of the spindle. By now turning the screw box in the boss or
barrel by its external nut or head, the said screw box takes upon the end of the
[Price 271

page_text: spindle, and the said boss or barrel is consequently advanced by a sliding motion
on to the said spindle until the rear end of the said boss or barrel abuts against the
door; the inside handle is thereby securely attached to its spindle, the said handle
being incapable of being removed, excepting by the rotation of the screw box in the
boss or barrel.
When it is wished to remove the inside handle from its spindle the external nut
or angular head of the screw box is turned in a direction proper to cause the screw
box to unscrew itself from off the spindle, when the boss or barrel slides from off
the spindle, and the handle is disconnected.
By my Invention the attaching parts are carried by and are inseparable from the
inside handle; and hence the inconvenience attending the use of detachable parts
is avoided.
In attaching door and other handles or knobs, other than inside carriage door
handles, to their spindles I construct and arrange the parts, substantially in the
manner herein-before described with respect to the inside handle of a carriage
door.