AN IMPROVED COMBINED KNOB BELL PUSH AND FITTINGS FOR HALL OR STREET DOORS
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
We JOSEPH ROPER and WILLIAM ROPER of 54 Livery Street Birmingham
Corkscrew Manufacturers, do hereby declare the nature of our Invention for "AN
IMPROVED COMBINED KNOB BELL PUSH AND FITTINGS FOR HALL OR STREET
DOORS," to be as follows:-
Our combined street door knob bell push and fittings, consists first of a knob, a
section of which is shewn in the accompanying drawing and which is secured to
a hollow spindle by means of iron and box wood nuts. A Bell is screwed on tho
other end of the spindle and is rung by pressing in the push piece at the end of the
knob, a rod from the push piece passing through the hollow spindle.
The frame is made of iron, brass or other suitable inetal and is recessed to receive
a removeable name plate, at 1 in the drawing; the removeable house number is
shewn at 2. The Letter plate may be placed in a horizontal position as shown
or in a vortical position between the house number and the name plate as
indicated at 3.

page_text: JOSEPH ROPER and WILLIAM ROPER of 34 Livery Street Birmingham,
Corkscrew Manufacturers, do hereby declare the nature of our invention for AN
IMPROVED COMBINED KNOB, BELL PUSO, AND FITTINGS, FOR HALL OR STREET
DOORS and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
Our Improved Combined Knob, Bell push, and fittings for Hall or Street doors
consists of a knob screwed to a hollow spindle by means of iron & box wood nuts
as hereinafter described and illustrated by the accompanying drawings.
Drawings N° 1 & 4 are Front Elevations.
"
"
"
2 is a section.
3 is a side Elevation of the mechanism by which the projecting pin
operates the bell hammer.
The knob A which is preferably of china is screwed to a box wood or other soft
screw which is firmly fixed to the hollow spindle C the box wood screw being
less likely to chip the china knob than a metal screw.
The spindle is fixed to the door by means of metal nuts E & F.
The bell G is screwed to the opposite end of the spindle by means of the
screw H.
-
Upon pressing the pushpiece I the hammer-J is caused to strike a projection (y¹)
from the bell by means of the following mechanism.
The pushpiece is attached to a rod D passing through the knob A and hollow
spindle Cand is kept in its normal position by means of the spiral spring K the
said rod having a projecting pin L for which the hollow spindle has a straight
slot M to enable it to work the tubing N upon which the bell hammer is fixed, the
latter tubing being placed loosely on the outside of the hollow spindle and having
cut in it a zig-zag slot O by which the projecting pin L works the bell hammer as
the pushpiece is being operated on.
"
The frame as illustrated by drawings No 1 & 4 may be made of iron brass or
other suitable material, and may be modified in design to suit the taste, it is
recessed to receive a noveable name plate and also to receive a moveable house
number. The letter plate may either be placed in a vertical position as shewn in
drawing No 1 or in a horizontal position as shewn in drawing N° 4.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
wc claim. is.
First. A door knob screwed to a spindle passing through the door, the bell being
fixed on the said spindle on the opposite side of the door.
Second. A door knob screwed to a hollow spindle passing through the door the
bell being fixed on the other side of the door on the opposite end of the said
spindle the hammer being made to strike the bell by pressing a push piece as
substantially set forth.
Third. The China knob screwed to the Spindle by means of a box wood or other
soft screw.
Fourth. A door knob screwed by means of a box wood screw, to a hollow Spindle
in combination with a bell at the opposite end of the Spindle the hammer being

page_text: operated on by a rod (passing through a hollow Spindle) by means of a projecting
pin working in a zig-zag slot as substantially set forth.
Fifth. An Improved combined knob Bell push, and fittings as herein described
and illustrated in the accompanying drawings.
Dated this 24th day of September 1884.