IMPROVEMENTS IN PULVERIZING MACHINERY
Year: 1877

page_text: LETTERS PATENT to George Barstow, of Leeds, in the County of York, for
the Invention of "IMPROVEMENTS IN PULVERIZING MACHINERY."
قيم
1817
1015
PROVISIONAL SPECIFICATION left by the said George Barstow at the
Office of the Commissioners of Patents on the 5th May 1877.
"
GEORGE BARSTOW, of Leeds, in the County of York. IMPROVEMENTS IN
PULVERIZING MACHINERY."
My improvements are particularly applicable for pulverizing ingredients used for
dyeing, such as myrabolans and argals, but may also be used for pulverizing flint or
other hard substances.
I provide a case or box in which I mount on a shaft carried in suitable bearings a
cone of metal. The case or box also internally is made of a conical form.
On the periphery of the cone to a suitable distance longitudinally, and commencing
at the small end, I make flutes, these being provided all round the periphery, and
by preference, of a regular pitch. I also provide flutes of a similar character within
the box or case itself, and corresponding with the aforesaid flutes, but towards the
larger end I alternate with plain surfaces of the same diameter as the top of the
flutes. I also provide a corresponding alternate arrangement of flutes and plain
surfaces in the interior of the box or case. I provide an endwise adjustment for
the internal cone for the purpose of regulating its position within the outer case
or box, thereby producing an increase or decrease in the size of the pulverized
material.
The material to be operated upon is fed into the machine at the small end of the
cone, and on the cone being caused to revolve it is broken up smaller and smaller,
until it reaches that part of the cone having alternate flutes and plain surfaces,
whereby it is reduced to a fine powder, regulated in size by the endwise adjustment
of the internal cone.
Motion is given to the machine from some suitable motive power.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said George Barstow in the Great Seal Patent Office on the 3rd November
1877.
GEORGE BARSTOW, of Leeds, in the County of York. " IMPROVEMENTS IN
PULVERIZING MACHINERY."
My improvements are particularly applicable for pulverizing ingredients used for
dyeing, such as myrabolans and argals, but may also be used for pulverizing flint
or other hard substances.
I provide a case or box in which I mount on a shaft carried in suitable bearings
a cone of metal. The case or box also internally is made of a conical form.
On the periphery of the cone, to a suitable distance longitudinally, and com-
mencing at the small end, I make flutes, these being provided all round the periphery
and by preference of a regular pitch. I also provide flutes of a similar character
within the box or case itself, and corresponding with the aforesaid flutes, but towards
the larger end I alternate with plain surfaces of the same diameter as the top of the
flutes. I also provide a corresponding alternate arrangement of flutes and plain
surfaces in the interior of the box or case. I provide an endwise adjustment for
the internal cone for the purpose of regulating its position within the outer case or
box, thereby producing an increase or decrease in the size of the pulverized
material.
The material to be operated upon is fed into the machine at the small end of the
cone, and on the cone being caused to revolve it is broken up smaller and smaller
until it reaches that part of the cone having alternate flutes and plain surfaces,
whereby it is reduced to a fine powder, regulated in size by the endwise adjustment
of the internal cone.
Motion is given to the machine from some suitable motive power.
And in order that my Invention may be more completely understood reference is
given to the accompanying Sheets of Drawings, and to the letters and marks
thereon.
DESCRIPTION OF DRAWINGS.
Sheet 1, Figure 1, is a longitudinal section; Figure 2, an end elevation; and
Figure 3, a plan of a machine constructed according to this Invention.
Sheet 2,Figure 1, is a longitudinal section; and Figure 2, an end elevation shewing
a modified arrangement of machine.
Towards the
a is a case or box in which I mount on a shaft b a metal cone c. The shaft is
carried in the bearings d and e. The case or box a is made of a conical form, as
shewn. On the periphery of the cone c I provide flutes f; these may be formed in
the cone itself or attached by any suitable means; these are provided all round the
periphery. I also provide flutes g of a similar character within the box or case a,
and corresponding with the flutes f on the periphery of the cone c.
larger end of the cone care gradually formed plain surfaces i which alternate with
the fluted surfaces, and are made of the same diameter as the top of the flutes. . I
also provide a corresponding alternate arrangement of flutes g and plain surfaces k
in the interior of the box or case a. I provide an end wise adjustment for the
internal cone c, and for this purpose I make the standard I, which carries one end of
the shaft b, adjustable, which is effected by means of the regulating screw m, which
works into a nut n attached thereto; by this means the position of the cone o in the
case or box a can be regulated endwise, and so increase or decrease the size of the
pulverized material.
For the purpose of readily taking out the cone c, or for cleansing purposes, I make
the box or case a in two parts, and bolt or otherwise fasten them together, as
shewn at o.
The material to be operated upon is fed into the machine at the small end of the
cone c at the honner n

page_text: Rotary motion is imparted to the cone c through the pulleys q from some suitable
motive power, by which rotary motion the material fed into the box or case a is
broken smaller and smaller, until it reaches that part of the cone c having alternate
flutes and plain surfaces whereby it is reduced to a fine powder, regulated in size by
the end wise adjustment of the internal cone c. But in order to suit some materials
requiring more grinding, I provide an additional box or compartment y, shewn at
Sheet 2, in which is provided and keyed on the shaft b a carrier 8 having any
required number of sliding bearings t, in which is mounted the rollers u.
material entering this box 1, after passing from the cone c, a further crushing opera-
tion takes place, which is effected by the rollers u carried round with the revolving
shaft b, and passing over the material.
On the
The desired pressure is obtained by means of the springs v or other equivalent
means. And in order to cleanse the interior surface of the box r I provide a
scraper w.
From the interior of this compartment r, when reduced to a
sufficient degree of fineness the material passes through the sieve or network x into
the compartment y, and thence down the spout z to any convenient place. This
part of the arrangement is of a similar construction to that shewn at Sheet 1, except
the fan or blower 1, which is employed to draw the ground material through the
network or sieve x, and force it down the spout z, into any convenient receptacle.
The whole is carried on a suitable table 2 mounted on the standards 3, or mounted
in any other convenient position.
Having now described the nature of the said Invention and shewn by Drawings
how the same may be carried into practice, I would have it understood that I do
not limit myself to the exact details or configuration of the various parts. I have
explained and shewn, as the same may of course be varied or modified without
in any way departing from the nature of my Invention, but what I claim and
desire to be secured to me by Letters Patent is,―
First. The arrangement and combination of a cone formed or fitted with flutes
and flats, the said cone revolving in a conical case formed or fitted with corres-
ponding flutes and flats, all substantially as and for the purpose set forth.
Second. The application of such cone and conical case with machinery arranged,
substantially as herein described and shewn.
In witness whereof, I, the said George Barstow, have hereunto set my hand
and seal, this Twenty-seventh day of October, in the year of our Lord One
thousand eight hundred and seventy-seven.
Witness to the signature of the said George Barstow,
J. W. HARDING,
Engineer and Patent Agent,
2, East Parade,
Leeds.
G. BARSTOW. (L.S.)