Improvements in or relating to Dust Collecting Apparatus.
Year: 1887

page_text: Date of Application, 19th Oct., 1887
Complete Specification Left, 18th July, 1888
Complete Specification Accepted, 19th Oct., 1888
PROVISIONAL SPECIFICATION.
Improvements in or relating to Dust Collecting Apparatus.
We ADOLF BUNTZEL and BERNHARD HERRICK of Merseburg and WILHELM
TRAUTMANN of Berlin Germany do hereby declare the nature of this invention to be
as follows
:-
For the purposes of this Invention I provide an apparatus consisting principally
of an outer case, an inner case, and a drum or barrel. At both ends of the drum on
a shaft running through the drum (the ends of which are open) are placed the fans
formed of any suitable number of blades or sails, and which draw the air through the
drum from the apparatus. The drum is placed horizontally in the inner case, its socket
being formed by the outer case and its ends opening into the fan chamber this drum
revolves automatically from its onter surface radiate a number of wedge shaped
compartments separated from each other by triangular diaphragmns these diaphragms
or divisions form a skeleton framework on the drum & over this framework is fixed
the cloth which receives the collected dust. The air to be cleaned enters the apparatus
through openings provided in the outer case from there through openings regulated
by flap doors.into the inner case and on to and through the collecting cloth into the
interior of the drum. Sight holes are provided through which air guages may be
consulted the current of air ascertained and the flap doors regulated accordingly.
To remove the dust from the collecting cloth I have placed in the lower part of
the inside of the drum a discharging apparatus. Throughout the length of the drum
are fixed two flat shaped tubes in the upper sides of which are openings these tubes
are connected with other tubes at either end communicating with the chamber of, and
fed by the main fans the mouths of these tubes being bell shaped. Between the iwo
first mentioned tubes is an opening and above then is a bellows arrangement actuated
by a crank shaft running beneath the drum and a connecting rod and having an
up and down movement on the rise of the bellows the air is forced through the
bell mouthed tubes into the flat tubes & through their openings into the space below
the bellows the downward movement forcing the air violently through the opening
between the tubes this opening leading to the under surface of the collecting cloth

page_text: of one series of compartments and forcing the dust from the cloth and discharging it
from the apparatus through an opening provided for the purpose into a tank placed
under for its reception the air being reconducted round the wooden walls into the
drum again. It is necessary that after each stroke of the bellows the drum should
partly revolve so as to bring a fresh series of the compartments to the discharge
opening and under the action of the bellows, for this purpose the ends of the drum are
provided with a ratchet the teeth of which are engaged by a pawl or lever fixed
on and working with the connecting rod working the bellows the rise of the rod
causing the drum to move sufficiently to bring a fresh series of compartments to the
outlet.
Dated this 19th day of October 1887

page_text: We ADOLF BUNTZEL BERNHARD HERRICK and WILHELM TRAUTMANN all of
64 St. Georges Road Warwick Square London S.W. Engineers 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 consists in the novel construction and combination of the several
arts-in the manner hereinafter described and set out in the claims.
In the accompanying drawings Fig. 1 shews a vertical cross section of the machine
Fig. 2 a vertical longitudinal section Fig. 3 shews a detail of the lower air tubes
connecting with the blower and Fig. 4 an enlarged view of portion of the ratchet.
A is the outer case of the machine and B the inner case C is the drum placed inside
the case B and is mounted or hung on the rings G at each end of the case A and on
which it revolves, the dust laden air is drawn through the cloth by suction caused by
the fans D which are placed at either end of the hollow drum and just outside tho
central rings G these fans are mounted on and revolved by the main shaft F to which
power is communicated in the ordinary way. Suitable boxes a provided with ports
are fixed on each side of A incasing the fans, when the fans' are put in motion, the
direction of the flow of air is indicated by the arrows being from the outside to the
inside of the drum. In order to regulate in the most desirable way the admission of
air from the outer case at finto the inner cylinder, there are provided openings K¹
in the casing B at suitable distances apart provided with flap valves k as many or as
few of these are opened at one time, and in this way the amount of air to be admitted
into the inner case is regulated at will, or may be entirely cut off. In the small holes
marked o in the outer case A air guages may be placed so as to indicate the amount of
air in the case. The holes marked S in the case A denote sight holes through which
the interior of the machine may be inspected. The drum or cylinder is provided with,
or made up of a series of V shaped compartments placed side by side.
To clear the dust from the cloth there is placed in the hollow shaft or interior of
the drum C two pipes U in communication with each other resting upon rubber or
leather pillows g the tubes R are attached to the pipes U so that the fans D when in
operation force air through the said tubes R. The lower aperture of the tubes R have
the whole breadth of the cases of the blowers.
The pipes U are in communication with the bellows V and between them is an opening P
extending the length of the drum. When the bellows are operated air is forced
through the pipes Û and the openings V of the pipes U. Each of the tubes R has
a valve opening upward and the opening P has one opening downward. By working
the bellows the air is forced through the openings P and then through the compart-
ments y of the inner cylinder or drum C.
By this means the dust is blown from the bolting cloth and falls through the lower
opening T of the outer case into any suitable receptacle below whilst the air flows

page_text: in the direction of the arrows 1 round the projecting, walls t t on each side into
the drum. The bellows are operated by means of the shaft H and suitable crank and
other connections as plainly indicated in Figs. 1 and 2.
In actual operation the shaft F will make about 500 revolutions per minute while
the shaft H will revolve in the same time about seven times.
In order that at each movement of the bellows a fresh compartment y shall come
under the opening p to be discharged of its contents of dust the connecting rod
which operates the bellows has a lever or pawl which engages with the ratchets =
on the periphery of the opening of the drum. Thus each time the rod rises the
drum moves far enough to bring a fresh compartment y into position.
Having now particularly described our invention and in what manner the same is
to be performed we declare that what we claim is
1. In a Dust Collector, the outer case A, the inner case B having valved openings
the revolving drum C inside the case B provided with the compartments y on its
periphery, an air exhaust and an induct, the whole constructed and combined in the
manner and for the purposes set forth.
2. In a dust collector as described the drum C constructed and intermittently
rotated as described combined with the pipes U the tubes R and the bellows V
substantially as described and shewn in the drawings.
Dated this 18th day of July 1888.
GEO. CUMBERPATCH,
6, Annette Road, Loraine Road, Holloway, N.,
Agent for the Applicants.