Improvements in Machines for Reducing to Fineness Salt and other similar substances.
Year: 1891

page_text: Date of Application, 17th Jan., 1891
Complete Specification Left, 22nd Sept., 1891-Accepted, 24th Oct., 1891
PROVISIONAL SPECIFICATION.
Improvements in Machines for Reducing to Fineness Salt and other
similar substances.
1 EDWARD ALBERT PEAKMAN, of 274 Nechells Park Road, in the City of
Birmingham Commercial Traveller do hereby declare the nature of this invention
to be as follows:-
This invention relates to a new or improved contrivance which is primarily
intended for grinding or preparing salt for table use, but which may also be used
for the reducing to fineness of other similar substances.
It consists chiefly of the combination of a peculiarly constructed grinding
cylinder or roller, with other parts that are more or less old, so that in general
appearance and working it is somewhat like other machines used for other purposes.
A suitable frame or bracket is provided, and usually so made that it may readily
be cramped to a table &c.
Upon this bracket is now mounted a horizontal conical tube, having its largest
diameter outwards, and also having upon its upper part, a hopper or feed opening.
Upon the aforesaid bracket, and concentric with the tube, is provided a bearing
to receive a revolving spindle, which is provided with a manipulating handle, which
is detachable.
Upon this spindle is now mounted the grinding mill or roller, whose exterior
diameter agrees with that of the interior of the tube aforesaid, and having at its
smaller end, grooves or teeth which become smaller or smoother as they approach
the larger end.
It is above the small end of the roller, that the feed opening or hopper, is
situated.
I
This roller I make of pottery, or other carthenware, or glass, or in some cases
may make the body of metal and coat it with enamel, but preferably the former
materials would be adopted.
This roller is further made, that it can be readily removed from the spindle, and
also the spindle removed from the machine for cleaning purposes.
At the front end and upon the bottom side of the tube, is provided an outlet
spout through which the pulverized salt &c., passes into any receiving vessel.
Thus upon placing lumps of salt in the hopper, and with a slight pressure of
these upon the roller as the handle is turned, the salt is ground to its required
fineness, and issued forth at the spout.
Dated this 16th day of January 1891.
CHARLES T. POWELL,
Applicant's Agent.
COMPLETE SPECIFICATION.
Improvements in Machines for Reducing to Fineness Salt and other
similar substances.
I EDWARD ALBERT PEAKMAN, of 274 Nechells Park Road, in the City of.
Birmingham, Commercial Traveller 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 invention relates to a new or improved contrivance which is primarily
intended for grinding or preparing salt for table use, but which may also be used
for the reducing to fineness of other similar substances.

page_text: $
It consists chiefly of the combination of a peculiarly constructed grinding
cylinder or roller, with other parts that are more or less old, so that in general
appearance and working it is somewhat like other machines used for other
purposes.
A suitable frame or bracket is provided, and usually so made that it may readily
be cramped to a table &c.
Upon this bracket is now mounted a horizontal conical tube, having its largest
diameter outwards, and also having upon its upper part, a hopper or feed opening.
Upon the aforesaid bracket, and concentric with the tube, is provided a bearing
to receive a revolving spindle, which is provided with a manipulating handle, which
is detachable.
Upon this spindle is now mounted the grinding mill or roller, whose exterior
diameter agrees with that of the interior of the tube aforesaid, and having at its
smaller end, grooves or teeth which become smaller or smoother as they approach
the larger end.
It is above the small end of the roller, that the feed opening or hopper, is
situated.
This roller I make of pottery, or other earthenware or glass, or in some cases I
may make the body of metal and coat it with enamel, but preferably the former
materials would be adopted.
This roller may be made that it can be readily removed from the spindle and
also the spindle removed from the machine for cleaning purposes.
At the front end and upon the bottom side of the tube, is provided an outlet
spout through which the pulverized or ground salt &c., passes into any receiving
vessel.
Thus upon placing lumps of salt in the hopper, and with a slight pressure of
these upon the roller as the handle is turned, the salt is ground to its required
fineness, and issued forth at the spout.
I will now proceed to more fully explain this my invention with the aid of the
accompanying illustrative sheet of drawings, upon which are figures and letters of
reference, similar letters referring throughout the several views to the same thing
or part, and in which :-
Fig. 1, is an end elevation of a machine constructed in accordance with my
invention.
Fig. 2, is a part sectional elevation of the machine showing its construction and
its manner of working.
Fig. 3, is a sectional end elevation of the tube and roller on line A-B (Fig. 2).
Fig. 4, is a detached view of the roller and spindle.
Fig. 5, is a sectional elevation showing a modified form of attaching the spindle
to the roller.
a, is the bracket or frame of any suitable design, which is affixed to the table &c.
by the cramp screw b.
To this frame a, is secured by means of screw pins c, c, (or otherwise fastened)
the conical tube d.
This tube d, has its largest diameter outwards and upon its upper part is fixed
the feed hopper e.
Within this tube d, is the roller f, whose outer diameter agrees with the inner
diameter of the said tube except that it is a little smaller, and which has grinding
teeth which become smaller and smoother as they approach the larger end.
This roller I preferably make of pottery or porcelain, or of glass, or in some
instances I may make it of metal and coat it with enamel.
This roller is carried on the spindle h, which may either be rigidly fixed thereon
(as shown in Fig. 2) by means of molten lead i, run around it, or it may be moulded
direct on to the spindle; or in other cases it may be made removable as shown in
Fig. 5, for the purpose of renewal in case of breakage &c. In this latter case by
unscrewing the nut j, the spindle may be readily withdrawn from the tube. The
said spindle in such case may be of square section at k, taking into a square hole in

page_text: the roller in order to prevent rotation on the spindle, or it may be gripped.
sufficiently tight for this purpose by screwing up the nut.
This spindle is further carried in a bearing 1, provided in the upper part of the
bracket at, concentric with the tube d, and is provided with a removable manipulating
handle m, fixed in place by means of the screw pin n.
At the front end and upon the bottom side of the tube d, is provided an
enlarged outlet or spout o, through which the pulverized salt &c. issues into the
receiving vessel.
Thus it will be readily seen that upon placing lumps of salt &c. in the hopper
and applying a slight pressure to the same, as the handle is turned the salt &c. is
ground to the required fineness and issues through the spout o, into the receiving
vessel.
In order to produce a rougher or finer grain from the machine it is only necessary
to slack the screw pin n, and push the spindle (and roller) farther out of the tube d,
or to draw the spindle (and roller) closer into the tube d, when a coarser or finer
grain will be the result.
Having now particularly described and ascertained the nature of this my said
invention, and in what manner the same is to be performed, I declare that what I
claim is :-
1. In machines for reducing to fineness salt and other similar substances, the
combination with the bracket a, of the taper tube d, having the hopper e, and
enlarged spout o, roller f, and handle m, substantially as described and illustrated.
2. The combination with the spindle h, of the porcelain, glass or enamelled taper
roller (removable or fixed) and the adjustable screw pin n, substantially as
described and illustrated, and for the purposes specified.
Dated this 21st day of September 1891
CHARLES T. POWELL,
12, Cherry Street, Birmingham, Applicant's Agent.