Improved Apparatus and Process for Moulding Plastic or Viscous Substances into the Form of Thin Bands or Ribbons.
Year: 1891

page_text: Date of Application, 19th May, 1891-Accepted, 25th July, 1891
COMPLETE SPECIFICATION.
Improved Apparatus and Process for Moulding Plastic or Viscous
Substances into the Form of Thin Bands or Ribbons.
I, JOHN HENRY DAY, of Nos. 53 & 55 South Pearl Street, 33 & 35 William
Street and 64 Hamilton Street in the City of Albany, N.Y., United States of
America, Merchant, do hereby declare the nature of my invention and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:
My invention relates to the process of and machine for spreading substances of
a sticky, gluey nature, or of a semi-liquid consistency, for drying, and the objects
of my invention are first to develope a process for spreading and drying viscous
substances in a thin ribbon like form, depositing the same upon a perforated
disk or screen in order that the moisture contained therein may be readily expelled
and second to produce a machine by means of which said process may be put into
execution.
I attain these objects in the following manner, and by incans of the mechanism
illustrated in the accompanying drawing, in which
Fig. 1 is a perspective view of my apparatus.
Fig. 2 is a detail view of the propeller.
Fig. 3 is a plan, and Fig. 4 a vertical section along the line 1-1 on Fig. 3.
Similar letters refer to similar parts throughout the several views.
For the purpose of drying many substances, especially those of a viscous nature,
such as paste, glue, and many chemical compounds, it is desirable to cause them to
assume a thin ribbon like form in order that the water may be readily expelled by
evaporation, or by other means. I use this process and machine particularly in
preparing dry flour paste, which is ordinarily composed of flour and water, and from
which it is desirable to expel the moisture.
To accomplish this result, the substance to be treated is placed in the hopper H
and coming into contact with the propelling screw S attached to the power pulley B,
it is moved forward by the action of the screw and comes into contact with the
rotating knife K attached to the screw S near its point, where it is cut into small
particles capable of being forced through the perforated plate T placed at the end
of the cylinder D near the knife K. To the end of the cylinder D of the feeding
and cutting machine, I attach by suitable coupling R, Fig. 3, the cylinder C, which
is open at the end nearest the perforated plate T, and closed by a suitable cap at
the opposite end. The coupling referred to is made by screwing the ring R on the
cylinder C on to the cylinder D, there being threads cut on the cylinder D near
the end to which the cylinder C is to be attached.
Through the side of the cylinder C, I cut a series of slots, and on each the upper
and lower side of the slots, I attach in any suitable manner threaded studs P, to
which is secured a valve V. To the front of the valve chamber, opposite the slot
in the cylinder, I secure a pipe N. The pipe N is flattened and made wider near
its discharge orifice than at its point of juncture with the valve chamber. The upper
and lower interior surfaces of the pipe N gradually approach each other in extending
from the valve to the discharge orifice, the discharge orifice being much wider and
of less depth than the entering orifice. The valve V is an ordinary gate valve, and
is so constructed that by the operation of the valve wheel, the plunger will enter
the valve chamber to the extent desired, making the passage between the cylinder
and the pipe either large or small, thus regulating the discharging of the substances
from the cylinder.
The substance entering the cylinder C is forced through the slots and passes
into the valve chamber, through the pipe N and emerges from the discharge orifice n
in thin ribbon like lavers.

page_text: Beneath the cylinder C, I place a perforated disk or screen usually constructed
of wire secured to a suitable frame, upon which the thin layers are collected, the
screen or disk being moved slowly forward in order that the substance may be
discharged thereon, and retain its ribbon like form.
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
1st. In a machine for spreading viscous substances, the combination of a cylinder
having a longitudinal slot through its side, with a valve attached to said cylinder
communicating with said slot, and provided with a discharge pipe, all substantially
as described and for the purpose set forth.
2nd. In a machine for spreading viscous substances, the combination of a cylinder
provided with a longitudinal slot, with a valve attached to said cylinder communi-
cating with said slot, with a discharge pipe attached to said valve, said discharge
pipe provided with an elongated longitudinal discharge orifice, all substantially as
described and for the purpose set forth.
3rd. In a machine for spreading viscous substances, a cylinder having a longi-
tudinal slot through its side in combination with mechanism for forcing the viscous
substances into the cylinder and through the slot therein, all substantially as described
and for the purpose set forth.
4th. The process of spreading viscous substances which consist in placing said
substances into a vessel, applying force thereto, causing the substances to be
discharged through a shallow orifice in a thin ribbon like form and collected and
exposed upon a perforated disk or screen, all substantially as described and for the
purpose set forthi.
5th. The process of spreading viscous substances in thin ribbon like form
upon a perforated disk or screen, substantially as described and for the purpose
set forth.
6th. The process of spreading viscous substances which consist in placing such
substances into a vessel, applying force thereto, causing the substances to be
discharged through a shallow orifice in a thin ribbon like form, all substantially as
described and for the purpose set forth.
323
JOHN H. DAY.
By Herbert & Co.,
18, Buckingham Street, Strand, London, W.C., Agents to Applicant.