An Improved Method of Making Tapped Mounts, for the Fixing to their Spindles of China, Wood, or Glass Knobs for Door Lock Furniture with Screwed Spindles.
Year: 1896

page_text: Date of Application, 18th June, 1896
Complete Specification Left, 16th Mar., 1897-Accepted, 1st May, 1897
An Improved Method of Making Tapped Mounts, for the Fixing to
their Spindles of China, Wood, or Glass Knobs for Door Lock
Furniture with Screwed Spindles.
RICHARD THOMAS GROCOTT and ALEXANDER PROSSER DICKINSON " White-
ball Works" Longport near Burslem in the County of Staffordshire China Lock
Furniture Makers do hereby declare the nature of this invention, to be as
follows:-
For the better understanding of our invention we refer you to drawings
herewith.
Fig. 1 shows the outside cup for our improved mounts.
Fig. 2 shows the inside tube for our improved mounts.
Fig. 3 shows the plan of improved mounts when the tube Fig. 2 is fixed in the
cup Fig. 1.
Fig. 4 shows the elevation of a section through the line A 13 of Fig. 3.
Our first process is to stamp or press blanks, of a suitable size and strength, out
of sheet metal by the aid of dies and tools into the form as shown Fig. 1. This
cup may vary in size from C to D Fig. 1 according to the size required to fit on
to the seat of the knob on to which our mount has to be fixed; from E to F
Fig. 1 according to the size of the hole in the rose into which this part is required
to fit and revolve; from G to H according to the thickness required for the set
screw hole c' Fig. 4.
We next bend sheet metal of convenient size and strength in dies and tools or
draw through a plate or plates until this said sheet metal is round inside and of an
irregular or angular form outside, preferably of the outside form as shown in
Figs. 2 and 3.
We now place the said tube Fig. 2 inside the cup Fig. 1 into position as shown
in Figs. 3 and 4 and then run molten lead or other metal or metals into the space
between the inside of the said cup and outside the said tube, to the level of the
inside of the step a a' Fig. 4.
We next, by the aid of screwing tool or tools cause a thread bb Fig. 4 to be
made inside the said tube of the same size and pitch as is required for screwing
over the spindle on to which the loose end knob has to be screwed.
To complete this improved mount, we drill and tap a hole c¹ Fig. 4 to allow for
the set screw being screwed in for the fixing of the said knob to the spindle.
Dated this 16th day of June 1896.
RICHARD THOMAS GROCOTT.
ALEXANDER PROSSER DICKINSON.

page_text: An Improved Method of Making Tapped Mounts, for the Fixing to
their Spindles of China, Wood, or Glass Knobs for Door Lock
Furniture with Screwed Spindles.
RICHARD THOMAS GROCOTT and ALEXANDER PROSSER DICKINSON China.
Lock Furniture Makers Whitehall Works Longport near Burslem in the County
of Staffordshire 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 of an improved method of making tapped mounts for the
fixing to their spindles of china, wood or glass knobs for door lock furniture with
screwed spindles.
To make our description clear we refer to drawings left with Provisional
Specification.
Fig. 1 represents the cup.
Fig. 2 represents the tube.
Fig. 3 represents a plan of mount complete.
Fig. 4 represents the elevation of a section through the line A. B Fig. 3.
To make the cup (Fig. 1) we stamp or press a blank, of rolled brass or other
metal, of convenient size and strength, by the aid of dies and tools. The said cup
may vary in form and dimensions to suit the requirements of the knobs and roses
to which they are to be applied. That is to say, the part C D Fig. 1 is made to
fit the outside of the seat of the required knob, the part E F Fig. 1 is made to fit
the inside of the required rose, and the depth G H Fig. 1 is made according to
the thickness of the required set screw.
s
We punch or drill a hole in the bottom of said cup as shewn in Fig. 1 of a
required size to suit the required spindle.
We also punch or drill a hole c' Fig. 4 of a size suitable for the set screw to
be used.
To make the tube Fig. 2 we bend rolled brass or other metal, into the desired
form, which is round inside, and of irregular, oval or angular shape outside
(preferably as drawn Fig. 2).
To fix the two said parts together, we now place the said tube inside the said
cup into position see bb Fig. 4 (also see plan Fig. 3), and then run molten lead
or other metal or metals into the space between the inside of the said cup and the
outside of the said tube, to about the level of a a Fig. 4.
We next tap the inside of the said tube.
The size of the pitch of thread being varied according to the size of the spindle
to which our mount has to fit.
To complete our mount we drill and tap a hole c' Fig. 4 right through the said
cup, the intervening metal, and the said tube, the said hole and thread being made
to fit the required set screw, which set screw is used for fixing the knob, when
mounted with our mount, to its spindle.
Having now particularly described and ascertained the nature of our said
invention and the manner the same is to be performed, we declare that what
we claim is -
.
The making of tapped mounts for the fixing to their spindles of china, wood or
glass knobs, for door lock furniture with screwed spindles, substantially as herein
described,
1. From rolled brass or other rolled metal.

page_text: 2. Being a combination of a cup Fig. 1 and tube Fig. 2.
3. Being held together and strengthened by the running in of molten lead
or other metal into the space between the inside of the part E F Fig. 1 of
the said cup, and the outside of the said tube.
Dated this 15th day of March 1897.
RICHARD THOMAS GROCOTT.
ALEXANDER PROSSER DICKINSON.