New or Improved Device for Fastening Gauze in Sifter-cylinders.
Year: 1895

page_text: Date of Application, 8th July, 1895-4ccepted, 10th Aug., 1895
New or Improved Device for Fastening Gauze in Sifter-cylinders.
I, ARTHUR DZONDI, of Langebrück, near Dresden, in the Empire of Germany,
Architect, 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 relates to a device for fastening the gauze to sifter-cylinders
whereby the nails heretofore employed are avoided, and the gauze can be quickly
changed without being injured by the fastening.
In the drawings hereto annexed Figure 1 shows part of a frame for a sifter-
cylinder with my invention applied thereto, Figure 2 a section of same, Figures 3
and 4 similar views to a larger scale, and Figures 5 and 6 views of a part of the
device to be hereafter described.
In the frame a of the sifter-cylinder, which is generally made of wood, is fixed,
with sunken screws or otherwise, a frame 6 of channel or U section. These two
frames are connected together permanently and the frame b may be made in one
piece. In the U shaped hollow or channel of this frame are placed bars cc' which
can be secured to the said frame by means of screws. The sifter gauze is placed
between the frame b and the bars c c¹ and is held in place by the connection of
these two parts.
In order to keep the gauze tight throughout its entire length spring pieces d are
placed on the bars e inside the sifter. For this purpose one of the longitudinal
bars has a cross notch e in which one end of the spring piece d is placed. To hold
this piece fast the cross notch may either be of dovetail shape or a plate f (see
Figures 3 and 4) may be placed over it which prevents the escape of the spring
therefrom. To prevent the spring entering too far into the notch the spring is
made narrower at its end and with shoulders which bear against the side of the
bar c..
The spring d is furnished at its other end with a slot y terminating in a hole
whereby the said end of the spring can be passed over a button or stud on the other
longitudinal bar c.
All the metal parts may be protected from rust by being galvanised or nickeled
or by being covered with leather or other suitable material.
The operation of this device is as follows:-
A piece of
gauze of the proper size is laid on the frame b and fixed at one side
thereof by one of the longitudinal bars c. It is then stretched and fixed at the ends
by means of the side segmental bars c', and the fixing is then completed at the
other side by means of the second longitudinal bar c. To tighten and maintain
the gauze in its circular form the end of the spring piece d is placed in the notch e
in the bar c at one side and the slot g in the other end is passed over the button,
or stud on the bar c at the other side. Further fixing with nails is not necessary.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
The new or improved device for fastening the gauze in sifter-cylinders which
consists of a frame of channel or U section secured inside the sifter-cylinder, the

page_text: gauze being fastened to such frame by bars secured in the channel or hollow thereof,
and stretched or tightened and maintained in the cylindrical form by spring pieces,
substantially as described.
Dated this 9th den of Tu... 1905
Per W. H. Beck,
A. DZONDI,
115 Cannon Street, London, E.C., Agent.