Improvements in or relating to Apparatus for Melting Lard and the like.
Year: 1891

page_text: Date of Application, 7th Mar., 1891
Complete Specification Left, 7th Dec., 1891-Accepted, 9th Jan., 1892
PROVISIONAL SPECIFICATION.
Improvements in or relating to Apparatus for Melting Lard
and the like.
I, EDWARD WARD MAUNDRELL of Calue in the County of Wilts. Engineer
do hereby declare the nature of this invention to be as follows:-
This my invention relates to improvements in or relating to apparatus for melting
lard and the like and my said improvements are designed with the object of ensuring
the more perfect agitation of the fat in the melting pan and also to exclude the air
during the melting of the fat and my invention also consists in the arrangement and
combination of the several parts as hereinafter described.
In carrying my invention into practice I provide the pan or receptacle in which
the fat is melted with a closely-fitting cover to the upper side of which is attached
a suitable crushing or mincing machine by which the fat is fed directly into the
body of the pan.
The said melting pan is heated by a steam jacket or other suitable means and the
fat as it melts passes into a pipe or conduit through a conical or other strainer or
it is removed by other convenient means.
Attached to the inner side of the cover of the melting pan before described and
concentric therewith is a depending sleeve in which works a vertical shaft to the top
of which shaft is secured a worm or other wheel driven or actuated by means of
corresponding gearing from the main shaft of the apparatus and the said vertical
shaft having a horizontal sleeve secured to the lower end thereof. The said sleeve
forms a bearing for a horizontal shaft to which are attached at suitable intervals
blades or scrapers which are arranged to conform with the shape of the bottom and
sides of the pan. The said shaft is rotated in a horizontal plane by the worm or
other gearing as before described and rotary motion is also imparted to the said
horizontal shaft by means of a bevel wheel fixed thereon which gears with a fixed
or stationary bevel wheel upon the sleeve within which works the vertical shaft
before mentioned the said bevel wheels being so adjusted that as the shaft rotates
the scraper blades clear the bottom and sides of the pan of particles of fat &c.
adhering thereto.
Suitable means are also provided to clear the conical strainer before mentioned.
The fat having been reduced to a fluid condition within the melting pan passes
through the pipe or conduit before mentioned or is otherwise transferred into a
second suitably heated boiling pan in which is a vertical shaft having radial arms
attached thereto.
Rotary motion is imparted to the said shaft by any suitable means from the main
shaft of the apparatus.
Upon said shaft is a sleeve having similar arms, said sleeve being rotated in the
opposite direction to the shaft by suitable gearing. The boiling fat in this pan is
consequently in a state of agitation and from this said pan it is drawn off as required
through a suitable pipe or is otherwise removed into a third or settling tank. Valves
are arranged in the different pipes to regulate or check the flow from one tank to
another.
Dated this 7th day of March 1891.
HORN & SON,
Applicant's Agents.

page_text: COMPLETE SPECIFICATION.
Improvements in or relating to Apparatus for Melting Lard
and the like.
I, EDWARD WARD MAUNDRELL of Calne in the County of Wilts. 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 relates to improvements in or relating to apparatus for melting
lard and the like and my said improvements are designed with the objects of ensuring
the more perfect agitation of the fat in the melting pan and also to exclude the air
during the melting or reduction of the same and my invention also consists in the
construction arrangement and combination of the several parts as hereinafter
described.
In order that my invention may be readily understood reference is made to the
accompanying drawings, like letters indicating corresponding parts in both of the
figures.
Fig. 1 is a view showing the several parts of the apparatus and,
Fig. 2 is a plan view of the same.
In carrying my invention into practice I provide the pan or receptacle A in which
the fat is melted with a closely fitting cover a to the upper side of which is attached
a suitable crushing or mincing machine B by which the fat is fed directly into
the body of the melting pan A. The said pan A is heated by a steam jacket C
or other suitable means and the fat as it melts passes into a pipe or conduit D
through a conical or other strainer d or it may be removed by other convenient
means.
Attached to the inner side of the cover a of the melting pan A before
mentioned and concentric therewith is a depending sleeve E in which works a
vertical shaft F to the top of which is secured a worm or other wheel which
is driven or actuated by means of a worm g or other gear from the main driving
shaft G of the apparatus.
The said vertical shaft F has a horizontal sleeve H secured to the lower end
thereof the said sleeve H forming a bearing for a horizontal shaft I to which
are attached at suitable intervals blades or scrapers i which are arranged to
conform to the shape of the bottom and sides of the melting pan A. The said
vertical shaft F is rotated by means of the worm or other gearing fa as before
described and rotary motion is also imparted to the said horizontal shaft I by means
of a bevel wheel J keyed or otherwise fixed thereon which gears with a stationary
bevel wheel K attached to the lower end of the sleeve E within which rotates the
vertical shaft F before described the said bevel wheels J. K. being so adjusted that
as the shaft I rotates the scraper blades i thereon clear the bottom and sides of the
pan of particles of fat et cetera adhering thereto.
The meshes or openings of the conical strainer d are kept clear by means of a
scraper to prevent clogging of the same.
The fat having been reduced to a fluid condition within the melting pan A passes
thro' the pipe or conduit D before mentioned or is otherwise transferred into a
second suitably heated boiling pan L in which is a vertical shaft M. having radial
arms m attached thereto.
Rotary motion is imparted to the said shaft by worm gearing O or other suitable
means from the main shaft G of the apparatus.
Upon the said vertical shaft M is a sleeve N having similar radial arms n thereon,
the said sleeve N being rotated in the opposite direction to the shaft M by mitre
gearing P or other suitable means.
Thus it will be understood that the boiling fat in this pan is in a state of con-
tinual agitation and from this pan it is drawn off as required through a suitable

page_text: pipe Q or it may be otherwise removed into a third or settling tank R where it is
allowed to cool.
Valves are arranged in the several pipes to regulate or check the flow of the
liquid fat from one tank to another.
Although in the accompanying drawings I have illustrated the preferable
disposition and arrangement of the different parts of my improved apparatus, it is
to be understood that the arrangement may be modified without departing from the
spirit of my invention.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed I declare that what I
claim is,
1. In an apparatus for melting lard and the like the use of a melting pan having
an airtight cover in combination with a mincing or crushing machine adapted to
feed the fat into the said melting pan, a series of rotary scrapers within said pan,
means for rotating said scrapers, a pipe for drawing off the melted fat-said pipe
provided with a conical or other strainer, the whole being arranged and operating
substantially as described and illustrated in the accompanying drawings.
2. An apparatus for melting lard and the like consisting of a melting pan provided
with an air-tight cover, and means for feeding the fat into the said pan, in combina-
tion with a pipe leading from said melting pan for transferring the melted fat into
a boiling pan-said boiling pan having rotary agitating blades therein means for
heating said pan, and a pipe leading from said boiling pan the whole being arranged
and operating substantially as described and illustrated in the accompanying
drawings.
Dated this 7th day of December 1891.
HORN & SON,
Applicant's Agents.