Apparatus for Removing Dust from Type Cases and the like.
Year: 1898

page_text: Date of Application, 10th Sept., 1898
Complete Specification Left, 8th Mar., 1899-Accepted, 29th Apr., 1899
Apparatus for Removing Dust from Type Cases and the like.
I, FRIEDRICH CARL PETER MARTIN MARTENS, of 15, Alter Steinweg, Hamburg,
Germany, Printer, do hereby declare the nature of this invention to be as
follows:-
It has been frequently proved scientifically that the breathing of dust in
factories of various kinds is exceedingly injurious to the health and even dan-
gerous to the life of the work people.
Consequently various devices have been employed to render this excitant of
disease harmless, and in many cases these have been successful.
In printing offices and composing rooms, however, it has only been possible
with the greatest difficulty to remove the dust which settles in the type cases that
are more or less filled with type, for which reason even the periodical cleaning
that is necessary on hygienic grounds is frequently left undone.
Now, the present invention has for object to obviate these drawbacks, and to
provide a rapid, convenient and entirely dustless means of cleaning type cases
and similar receptacles, without injury to health; and such means consists in
covering the receptacle or type case to be treated with a suitable dust-catcher,
and blowing it out thoroughly by means of a blower or the like.
A bellows suitably constructed for this purpose is illustrated in the accompany-
ing drawings in Figs. 1, 2 and 3 of which Figs. and 2 are respectively a side
elevation partly in section, and a front elevation of the bellows, and Fig. 3
shows it on a smaller scale applied to a type case. Fig. 4 shows the type case
partially covered with the dust-catcher.
The
The lower part of the bellows a is fixed to the baseplate 6 of a frame c and is
connected in the usual manner with the upper movable part. Upon the latter
there is fixed a strap d which carries a lever e. This lever has its fixed pivot f
in the arm c and is formed with a longitudinal slot in which works a pin h
of the strap d that is fixed to the upper movable part of the bellows a.
pin h, which forms the fulcrum of the lever e, moves in the longitudinal slot g
during the operation of the bellows. In the lower part of the bellows a that is
fixed to the frame, there are provided wind apertures which, in this example
are formed by pipes i. Any desired number of such wind apertures may be
provided. The lever e which is provided as described with a fixed pivot but with
a shifting fulcrum, is limited in its vertical movements by means of a guide
in the frame c. The longitudinal rod c' which forms the upper connection of
the frame is preferably rounded, and serves as a handle, so that the bellows can
be conveniently and firmly held during use.
The dust catcher m which is composed of net, canvas, gauze or any other
pervious material, is advantageously slightly wetted, and placed over the type
case, or a part thereof, which is to be cleaned (Fig. 4) upon this cover the bellows
is placed and operated, whilst holding the upper bar c¹ with one hand and
operating the lever e with the other, and the type case is then thoroughly blown
out the air passing through the dust-catcher. The dust which is thereby blown
or drawn up remains caught on the wet underside of the covering m and is there-

page_text: fore not able to pass through the same. The dust can be readily removed by
simply washing or rinsing out the covering.
In this manner, it is clear that the dry dust is completely prevented from
reaching and injuriously acting upon the breathing organs. Since the dust
catcher need only be very slightly wetted, no dripping of liquid into the type
case will take place. In using perforated covers or plates m of rigid material,
the under surface of the latter may be provided with a suitable paint or coating
to which the dust will adhere.
I, FRIEDRICH CARL PETER MARTIN MARTENS, of 15, Alter Steinweg, Hamburg,
Germany, Printer, 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:-
It has been frequently proved scientifically that the breathing of dust in
factories of various kinds is exceedingly injurious to the health and even dan-
gerous to the life of the workpeople. Consequently various devices have been
employed to render this excitant of disease harmless, and in many cases these
have been successful.
In printing offices and especially in composing rooms, however, it has only
with the greatest difficulty been possible to remove the dust that settles in the
type cases that are more or less filled with type, and consequently even the
periodical cleaning that is absolutely necessary on hygienic grounds is frequently
left undone.
Now this invention has for object to obviate these evils, and to provide rapid,
and convenient means of cleaning type cases and similar receptacles without
disseminating the dust in the adjacent atmosphere and consequently without
injury to health; and such means consist in covering the receptacle or the type
case to be treated with a suitable dust-catcher, and blowing it out thoroughly
by means of a bellows or the like.
A bellows specially constructed for this purpose is represented in Figs. 1 and 2
of the drawings filed with my Provisional Specification, which are respectively
a sectional side elevation and a front elevation thereof;
Fig. 3, which is drawn to a smaller scale than Figs. 1 and 2, shows the bellows
applied to a type case;
Fig. 4 shows the type case partially covered with the dust-catcher.
The lower part of the bellows a is fixed to the base-plate 6 of a frame c and is
connected in the usual manner with the upper movable part. Upon the latter
there is fixed a bracket d which engages with a lever e. This lever has its fixed
pivot or fulcrum f in the frame c and is formed with a longitudinal slot gin
which works a pin h of the bracket d that is fixed to the upper movable part
of the bellows a. The pin h moves in the longitudinal slot g during the opera-
tion of the bellows. In the lower part of the bellows a that is fixed to the frame,
there are provided wind apertures which, in the example shown, are formed by
pipes. Any desired number of such wind apertures may be provided. The

page_text: lever e, which is provided as described with a fixed pivot but with a shifting
point of operation, is limited in its vertical movements by means of a guide in
the frame c. The longitudinal rod c', which forms the upper connexion of the
frame, is preferably rounded, and serves as a handle, so that the bellows can be
conveniently and firmly held during use.
The dust-catcher m, which is composed of a suitable pervious material, as
net, canvas, or gauze, is slightly wetted, and placed over the (or part of the)
type case o that is to be cleaned (Fig. 4). Upon this cover the bellows placed,
and, the upper bar c being held with one hand and the lever e operated with
the other, the air within the type case is drawn up from every part thereof
through the dust-catcher. The dust which is drawn up therewith remains caught
on the wet underside of the covering m and is therefore not able to pass through
the same.
The dust can be afterwards easily removed by simply washing, or
rinsing out the covering. In this manner the dry dust is completely prevented
from reaching and injuriously acting upon the breathing organs. Since the
dust catcher need only be very slightly wetted, no dripping of liquid into the
type case will take place.
In using perforated covers or plates m of rigid material, the under surface
thereof may be provided with a suitable coating to which the dust will adhere.
Having now particularly described and ascertained the nature of the said in-
vention and in what manner the same is to be performed, I declare that what
I claim is:-
com-
1. Apparatus for removing dust from type cases and the like which
prises a bellows a, and a dust-catcher m, completely or partially covering the
type case or the like and composed of a suitable pervious material, as net, can-
vas, or gauze, or of a perforated plate of rigid material, and in which the dust
is drawn up by the bellows against and caught by the wetted or coated under-
side of the dust-catcher m.
or
2. In apparatus according to the preceding claim, a bellows a having one
more wind apertures i and operated by means of a lever e having a fixed pivot f
and a shifting point of operation h.
3. Apparatus for removing dust from type cases and the like constructed,
arranged, and operating as herein before described with reference to and shown
in the drawings filed with my Provisional Specification.
F. WISE HOWORTH,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.

page_text: 29:4
m