Improvements in Beaters Employed in Machinery for Grinding and Pulverising Myrobalans, Bark, Bone, Locust Beans, and other Animal, Vegetable, and Mineral Substances.
Year: 1889

page_text: Date of Application, 14th Mar., 1889
Complete Specification Left, 14th Dec., 1889-Accepted, 8th Mar., 1890
PROVISIONAL SPECIFICATION.
Improvements in Beaters Employed in Machinery for Grinding and
Pulverising Myrobalans, Bark, Bone, Locust Beans, and other
Animal, Vegetable, and Mineral Substances.
-
We, FREDERICK FIRTH, Junior, of Watergato, Dewsbury, in the County of York,
Machine Maker, and JOHN WHITEHEAD, of 10 Cemetery Road, Dewsbury aforesaid,
Mechanic, do hereby declare the nature of this invention to be as follows
--
Our invention has reference to the revolving beaters employed in the above class of
machine which are composed of four arms projecting from a central boss. Hitherto
these arins, with their heads, have been made from on forging, and afterwards they
have had to be finished and made with a steel facing, the cost of which has been
very great.
The object of our invention is to reduce the cost of making these beaters, which we
propose to carry out in the following manner :-The arms of the beaters are forged
in any ordinary manner, but the heads of the said beaters are made separately and
afterwards attached to the arms of the said beaters by rivets, bolts, dovetail arrange-
ments, or other like devices.
By this means the cost of the said beaters is not only reduced, but when the heads
of such beaters become worn, they can be reversed, and when they become unfit for
further use they can be removed and new ones substituted for them, whereby the cost
of repairs and the time occupied therein is considerably reduced.
Dated this 13th day of March 1889.
TASKER & CROSSLEY,
Halifax, Agents.
COMPLETE SPECIFICATION.
Improvements in Beaters Employed in Machinery for Grinding and
Pulverising Myrobalans, Bark, Bone, Locust Beans, and other
Animal, Vegetable, and Mineral Substances.
We, FREDERICK FIRTH, Junior, of Watergate, Dewsbury, in the County of York,
Machine Maker, and JOHN WHITEHEAD of 10 Cemetery Road, Dewsbury aforesaid,
Mechanic, 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 has reference to the revolving beaters employed in the above class
of machine, which are composed of four arms projecting from a central boss.
Hitherto these arms, with their heads, have been made from one forging, and after-
wards they have bad to be finished and made with a steel facing, the cost of
which has been very great.
The object of our invention is to reduce the cost of making these beaters, which we
propose to carry out in the following manner :-The arms of the beaters are forged
in any ordinary manner, but the heads of the said beaters are made separately and
afterwards attached to the arms of the said beaters by rivets, bolts, dovetail arrange-
ments, or other like devices.
In order that our invention may be better understood, we will now make reference
to the accompanying sheet of drawings illustrative thereof, wherein Fig. 1 is elevation
of a form of beater employed in machinery for grinding and pulverizing myrobalans
and other like substances. The beater is composed of a boss A provided with four or
other number of arms B, to the extremities of which arms we attach by bolts or other means
heads C, which forms our invention. These heads may be of any suitable form or

page_text: shape, as will be well understood. According to the construction of head shewn in
Fig. 2, it is arranged to fit on both sides of the radial arms B. 7
By making heads separately from the beater arms, the cost of the said benters is not
only reduced, but when the heads become worn they can be reversed, and when they
become unfit for further use they can be removed and new ones substituted for them,
whereby the cost of repairs and time occupied therein is considerably reduced.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed; we declare that what we
claim is :-
In machinery for grinding and pulverizing myrobalans and other like substances,
the construction of beaters having moveable head's arranged and constructed substan-
tially as herein shewri and described
TASKER & CROSSLEY,
Halifax, Agents.