Improved Spindle-heads or Bearings for Potter's Lathes, Potter's Jiggers, and Thrower's Wheels.
Year: 1899

page_text: Date of Application, 4th Sept., 1899
Complete Specification Left, 5th June, 1900-Accepted, 7th July, 1900
PROVISIONAL SPECIFICATION.
Improved Spindle-heads or Bearings for Potter's Lathes, Potter's
Jiggers, and Thrower's Wheels.
I, JAMES TEGGIN, The Borough Foundry, Clayton Street, Longton, Stoke-on-
Trent, Potter's Engineer, do hereby declare the nature of this invention
to be as follows:-
This my invention has reference to an improved construction of spindle-heads
or bearings for potter's lathes, jiggers and thrower's-wheels, the object of my
said invention being to make such spindles with removable heads or bearings of
any suitable shape, to enable such bearings to be removed therefrom when worn
and a new or better head or bearing substituted, thereby obviating the necessity
of a new spindle each time the bearing requires to be changed, as is the case
when spindles having a head or bearing forged on or formed solid in one with
same and invariably used.
In carrying my said invention into practice I forge or make such spindles
with a slightly conical head or end of or from steel, wrought-iron, brass or other
suitable metal or metallic alloy, on to which head by hydraulic pressure or like
suitable means I force a steel, a case-hardened wrought-iron, a brass, a bronze
or other suitable metallic ferrule-bearing of suitable thickness having a conical,
a parallel or other suitably shaped outer surface, which when worn can be readily
removed from such spindles.
1000
JOHN NEWTON,
Longport, Stoke-on-Trent, Staffs.,
Agent for Applicant.
Improved Spindle-heads or Bearings for Potter's Lathes, Potter's
Jiggers, and Thrower's Wheels.
I, JAMES TEGGIN, The Borough Foundry, Clayton Street, Longton, Stoke-on-
Trent, Potter's Engineer, 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:—
This my invention has reference to an improved construction of spindle-heads
or bearings for potter's lathes, potter's jiggers and thrower's-wheels, the object of my
said invention being to prolong the life or use of such spindles by making such
spindles with removable heads or bearings of suitable shape to enable worn or

page_text: defective bearings to be removed therefrom, and new or other bearings sub-
stituted, without requiring a new spindle each time such bearings are changed,
as is necessary when spindles have a head or bearing forged on or formed solid
in one with same.
In order that my said invention may be more readily understood and explained
in detail I have hereunto annexed a sheet of drawings on which letters of reference
are marked.
DESCRIPTION OF DRAWINGS.
Figure 1 is a full size elevation of the upper end or portion of a potter's jigger
spindle a as ordinarily made and used, which spindle when the head made
solid with same becomes worn is invariably renewed.
Figure 2 is an elevation of about one-half of the full size of the upper end
or portion of a potter's improved jigger-spindle as I make them according to my
said invention.
Figure 3 is an elevation of a potter's jigger erected for use, and
Figure 4 is a side elevation about one-half of its full size of a collar plate for
use with such jiggers or spindles.
On reference to the drawings hereto annexed the wrought-iron, steel or other
suitable metallic spindle c I forge and turn down to any required size with a
portion d of any suitable taper near to its upper end, and a parallel portion e of
required size on which I form a screw-thread of suitable length and pitch by
cutting same in a lathe or by any other well known means, on the said tapered
portion I tightly fit. by hydraulic pressure or like suitable means a case-hardened
wrought-iron, steel, bronze, brass or other suitable metallic ferrule-bearing f of
suitable size having a conical, a parallel or other suitably shaped outer surface
for fitting into a correspondingly shaped hole formed in the cast-iron, cast-steel
or other suitable collar-plate g. When such bearing f is worn or it is required
to remove same from its spindle, such spindle c is first removed from the bench
or table to which it is fitted, and the bearing f then removed from such spindle
by hydraulic pressure or other suitable means, and a new or another metallic
ferrule-bearing substituted so that the same spindle can be used.
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:
1. The construction of metallic spindles for potter's-jiggers, potter's-lathes
and thrower's-wheels with a tapering cylindrical portion of suitable length in
one with, or solid with same on which a removable metallic ferrule bearing of
suitable shape and length can be tightly fitted or fixed by hydraulic pressure or
like suitable means for fitting or bearing in a correspondingly shaped hole formed
in the collar-plate of such jiggers, lathes and thrower's wheels as herein sub-
stantially described and set forth.
2. The method of constructing spindles for potter's-lathes, potter's jiggers and
thrower's wheels for enabling the head or bearing of such spindles to be renewed
or changed as herein substantially described and set forth.
Dated the 21
1000
JOHN NEWTON,
Longport, Stoke-on-Trent, Agent for Applicant.