Improvements in Apparatus for Distributing Enamel Powders or other Powders.
Year: 1898

page_text: Date of Application, 22nd Dec., 1898
Complete Specification Left, 20th Sept., 1899-Accepted, 4th Nov., 1899
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Distributing Enamel Powders or
other Powders.
I, JOHN SHANKS, of Tubal Works, Barrhead, in the County of Renfrew, North
Britain, Sanitary Engineer, do hereby declare the nature of this invention
to be as follows, that is to say:-
My said invention has for its object to provide improved apparatus for dis-
tributing powders in a regular and uniform manner. In enamelling baths and
other metal articles the material in a powdered condition has to be applied to the
surface of the article when the article is in a heated state, and it is important
to effect the application rapidly and so as to make the enamel coating as equal as
possible. My improved apparatus is also advantageously applicable for distribut-
ing powders for various other purposes.
In carrying out my invention the powder is contained in a drum or vessel
having a bottom of wire gauze or perforated metal. The drum is carried by a
ring fixed to the end of a tubular handle of suitable length, the drum being sup-
ported by pins extending into short slots in the sides of the ring, and having
fixed to it a rod extending within the tubular handle where a spring is applied
to it tending to move the drum towards the handle. A pneumatic hammer is
applied at the outer end of the tubular handle so as to act on the drum rod, and
when in action causes a rapid and regular vibration of the drum and a uniform
delivery of the powder through the permeable bottom of the drum.
Instead of the pneumatic hammer, and where a suitable electric current is
available, an electrical reciprocator such as that of an ordinary electric bell may
be employed. Or a ratchet wheel turnable by means of a handle or otherwise
may be arranged to act on the drum rod.
Instead of the drum being movable in its ring it may he fixed therein, and the
drum may be acted on concussively by means of a rod or otherwise.
Dated this Twenty-first day of December 1898.
EDMUND HUNT,
Applicant's Agent.
Improvements in Apparatus for Distributing Enamel Powders or
other Powders,
I, JOHN SHANKS, of Tubal Works, Barrhead, in the County of Renfrew, North
Britain, Sanitary 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, that is to say:-
My said invention has for its object to provide improved apparatus for dis-
tributing powders in a regular and uniform manner. In enamelling baths and
other metal articles the material in a powdered condition has to be applied to the
surface of the article when the article is in a heated state, and it is important
to effect the application rapidly and so as to make the enamel coating as equal as
[Price 8d1

page_text: possible. My improved apparatus is also advantageously applicable for distribut-
ing powders for various other purposes.
And in order that my said invention and the manner of performing the same
may be properly understood I hereunto append a sheet of explanatory drawings
to be hereinafter referred to in describing my improvements.
Figure, 1, of the drawings is a plan, and Figure, 2, is a longitudinal vertical
section of one modification of the improved apparatus. Figure, 3, is a side
elevation partly in section of a second modification, and Figure, 4, is a view,
similar to Figure, 3, of a third modification. In these drawings the same refer-
ence letters are used to mark the same or like parts wherever they are repeated.
In carrying out my invention according to the modification shown in
Figures, 1, and 2, the powder to be distributed is contained in a drum or
vessel, A, having a bottom, B, of wire gauze or perforated metal. The drum, A,
is carried by a half ring or bow-shaped piece, C, fixed to the end of a tubular
handle, D, the drum being supported by pins, E, formed or fixed to it which
extend into short slots, G, in the sides of the ring piece, C. The drum, A, has
fixed to it a rod, H, extending within the tubular handle, D, a spring, J, being
applied between fixed collars, K, L, on the rod and handle, and thereby tending
to move the drum towards the handle, sufficient space being left between the
handle and the drum to permit the movement. A pneumatic hammer, M, is
applied at the outer end of the tubular handle, D, so as to act on the drum
rod, H, and when in action causes a rapid and regular vibration of the drum and
a uniform delivery of the powder through the permeable bottom of the drum.
Instead of the pneumatic hammer, and where a suitable electric current is
available an electrical reciprocator such as that of an ordinary electric bell may
be employed. Or a ratchet wheel turnable by means of a handle or otherwise
may be arranged to act on the drum rod.
In the modification shown in Figure, 3, the drum, A, instead of being arranged
to move in the bow-shaped piece, C, is fixed to it, the bow-shaped piece how-
ever being preferably shortened as shown. The drum, A, is acted on concus-
sively by a loose rod, N, within the tubular handle, D, the rod being actuated
by the pneumatic hammer, M, or similar appliance and acting against a stop or
concussion plate, P, in the handle so as to produce rapid concussions, and thereby
impart the requisite vibration to the drum. A spring, Q, is interposed between
a collar, R, on the rod, N, and the stop, P, and acts so as to return the rod to
its neutral position after each concussive action.
In the modification shown in Figure, 4, the drum, A is fixed to the tubular
handle, D, in the same way as in Figure, 3, but instead of the internal rod, N,
acting directly against the stop or concussion plate, P, on the handle, it acts
on one arm of a bell-crank lever, S, mounted on the handle, D, the hammer-shaped
end of the other arm of the lever acting against a stop or concussion plate, P,
on the handle, thereby producing rapid concussions, which impart the requisite
vibration to the drum. The spring, Q, in this modification is interposed between
the arm of the bell-crank lever, S, and a stop, T, and acts so as to return the lever
and the rod, N, to their neutral positions after each concussive action.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:-
In apparatus for distributing enamel powders or other powders the imparting
of vibratory or concussive action to the distributing drum or vessel by mechanism
substantially such as is hereinbefore described.
Dated this Nineteenth day of Santamban
1000