Improvements in Felt Hat Dishes or Moulds and Lifters therefor and Means for Effecting the same.
Year: 1898

page_text: Date of Application, 19th Oct., 1898
Complete Specification Left, 21st Aug., 1899-Accepted, 19th Oct.,
1899
PROVISIONAL SPECIFICATION.
Improvements in Felt Hat Dishes or Moulds and Lifters therefor and
Means for Effecting the same.
We, HENRY HERBERT TURNER, ALBERT TURNER, and ARNOLD TURNER, all of
Ashton Road, Denton, near Manchester, Hatters' Machinists, do hereby declare
the nature of our said invention to be as follows:
66
Our invention relates to the dishes or moulds used in felt hat presses, and
to lifters" used therewith for increasing the depth of a hat crown, and has for
its object to render such lifters interchangeable with other dishes of the same
size, although differing in shape, in lieu of a separate lifter being used for cach
dish, and our invention consists chiefly of dishes and lifters of varying shapes
with their abutting faces ground to a corresponding arch.
A further feature of our invention (which is made permissible by the grinding
operation) is the making of the lifters of hard metal, in lieu of soft (spelter) metal
as has heretofore been the practice.
In carrying out our invention we employ an emery or like grinding stone,
having a rapid rotary and slow end-wise to-and-fro movement, and we feed the
top surface of the dishes to such stone in a curved (concave) path, corresponding
to the arch required. Simultaneously (or at a separate operation) we feed the
underside of a lifter against the said stone in a curved (concave) path, corre-
sponding to the concave arch of the dish. Means are also provided for feeding
the dishes and lifters and regulating the degree of grinding.
1
1011
£ Catalan 1808
Improvements in Felt Hat Dishes or Moulds and Lifters therefor and
Means for Effecting the same.
We, HENRY HERBERT TURNER, ALBERT TURNER, and ARNOLD TURNER, all of
Ashton Road, Denton, near Manchester, Hatters' Machinists, 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 relates to the dishes or moulds used in felt hat presses, and
to "lifters" used therewith for increasing the depth of a hat crown, and has for
its object to render such "lifters" interchangeable with other dishes of the same
size or oval, in lieu of there being a separate set of "lifters" for each dish and
our invention consists chiefly of dishes and lifters of varying shapes with their

page_text: abutting faces ground to a corresponding arch. A further feature of our inven-
tion is the making of the "lifters" of hard metal, in lieu of soft (spelter) metal
of which they have heretofore been made.
In carrying out our invention we employ an emery or like grinding stone,
having a rapid rotary and slow end-wise to-and-fro movement, and we feed the
top surface of the dishes to such stone in a curved (concave) path, corresponding
to the arch required. Simultaneously (or at a separate operation) we feed the
underside of a lifter" against the said stone in a curved (concave) path, corre-
sponding to the concave arch of the dish. Means are also provided for feeding
the dishes and
"
lifters and regulating the degree of grinding.
"
The accompanying drawings illustrate the manner in which we propose to effect
the grinding, Fig. 1 being a vertical section and Fig. 2 a plan of a machine
adapted to the purpose. Fig. 3 illustrates a detail.
On Sheet Two,
Fig. 4 illustrates a modification, also the manner in which we grind a
and dish simultaneously.
"
"lifter"
Fig. 5 illustrates a set of "lifters and Fig. 6 a hat dish the abutting faces
of which are of the same uniform arch.
In carrying out our invention the hat dish (A) to be treated is placed within
a strong metal carrier (B) and firmly secured therein by the bolts (C). This
carrier is provided with trunnions (D) which fit into the space (E) of the curved
guides (F) and are adapted to slide to-and-fro in such space. The said guides
are carried by adjustable plates (G) which in turn are carried by fixed plates (H)
on the frames (I) of the machine, through the medium of bolts (J) which pass
through slots (K) in the said plates (G) and through holes in plates (H) and by
the aid of a hand-wheel or nut tightly clamp the plates (G) in position at the
required height. This adjustment is facilitated by the screw (L) abutting against
the lug (L) and working through a fixed bridge (M) and by the hand and gear
wheels (N), (O).
Above the said guides, and supported centrally upon the machine frames in
suitable bearings (P), is a shaft (Q) fitted with pulleys (R) and (S) and a large
corundum or emery grinding stone (T). This latter is mounted on a sleeve (U)
keyed to the shaft, and is securely clamped on the sleeve by end-flanges (V) and
nuts (V).
With the stone (T) given a rapid rotary movement, and the hat dish with its
upper face in touching contact fed beneath it in a path corresponding to the
desired arch, it will be obvious that the stone will grind the dish to such arch.
This manipulation of the hat dish for this purpose is provided for by the
guides (F) (which are of the required curve) the screw (✗) and the nut (W).
This latter, as the screw rotates, moves the carrier (B) and dish (A) slowly
beneath the grinding stone (T).
The screw (X) receives its motion through wheel (Y) a worm (Y) below it,
a pulley (Y2), strap (Z), pulley (S), shaft (Q) and driving pulley (R).
To ensure of the grinding being equal at all points we give the grinding stone
a slight to-and-fro lateral, or endwise traverse, using a worm (Z¹) on the shaft (Q),
and a toothed wheel (Z2) carried on an axle (73) between arms (7) bolted to the
machine frame.
Between one of the arms (7) and the side of the wheel (22) is the upper end
of the lever (Z) and upon the axle (73) is an eccentric enlargement. adapted to lie
within the slot (76) in lever (Z), consequently as the wheel (Z3) and axle (73) 5
rotate under the movements of the worm (Z), the lever (75) is caused to move
to-and-fro on the fulcrum (77) carried on plate (H). This to-and-fro movement,
which is very slight, is imparted to the driving shaft (Q) by the arms (Z3) which
are bolted to the lever (75) and carry segmental yokes (Z) which engage the
grooved boss (Z1º).
The "lifters" are ground in a separate machine with the curve of the guides (F)
reversed and arranged to feed them against the grinding stone in a concave path
5

page_text: under the same feed devices aforesaid, or they, and the dishes are ground simul-
taneously in the same machine, as shewn in Fig. 4.
In lieu of feeding the dishes or "lifters" to the grinding stone by the screw (✗)
we may feed them by a disc wheel (a) and a connecting rod (6) as shewn in
Fig. 4 the rotation of the wheel (a) serving to traverse the carrier (B) to-and-fro
to the extent required.
By thus grinding all the said dishes and their lifters to a uniform arch, in lieu
of grinding each dish indiscriminately to the arch suited only to its lifters, or
vice-versa, we effect a great saving in lifters, as one set of lifters will alone suffice
for any number of dishes of the same size, instead of a separate set for each dish
as has heretofore been necessary.
A further advantage of our invention arises from the fact that it permits of the
lifters being made of hard metal, whereby are rendered more durable and less
liable to damage, in contrast to the ordinary spelter lifters now in use, which
are very soft and are easily marked or distorted.
In lieu of traversing the hat dish and lifters we may traverse the grinding
stone and hold the dish or lifters stationary, or give them only a slight lateral
movement, but we prefer them to be traversed and the stone to rotate only.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed we declare that what
we claim is:-
1: Hat dishes or moulds having a uniform arch and "lifters" therefor having
a uniform and corresponding arch and interchangeable with each other, sub-
stantially as set forth.'
2: In means for grinding hat dishes and "lifters" a revolving grinding stone,
a set of curved guides (or curved recesses), a carrier for holding the hat dish
(or lifter) mounted in the said guides (or recesses) and by suitable mechanism
traversed in the slides with the hat dish against the grinding stone, substantially
as herein set forth.
3:-In means for grinding hat dishes and "lifters" a grinding stone, a set
of curved guides (or recesses), a carrier for holding the hat dish and a carrier
for holding the "lifter" mounted in the said slides (or recesses) and by suitable
mechanism traversed in the slides with the hat dish and "lifter" against the
grinding stone, substantially as set forth.
4: The combination and arrangement of parts substantially as and for the
purposes herein set forth and illustrated in Figs. 1 and 2 of the accompanying
drawings.
5: The combination and arrangement of parts substantially as and for the
purposes herein set forth and illustrated in Fig. 4 of the accompanying drawings.
6: A set of curved guides, as and for the purposes set forth..
7: In combination, a set of curved guides and a carrier for a hat dish lifter
mounted between ard carried by the said guides, as and for the purposes set forth.
119100 TMR
110100 1019 1OLA (18V OF A UVUSI LOPA
HENRY HERBERT TURNER,
ALBERT TURNER,
ARNOLD TURNER.
By J. G. Wilson & Co.,
Fels.Inst.P.A.,
Patent Agents to the Applicants, Manchester.