Year: 1887

page_text: Date of Application, 31st Mar., 1887
Complete Left, 7th Dec., 1887
Complete Accepted, 13th Jan., 1888
We LUDWIG RÖSSLER of Aibling and HEINRICH REINHARD of Munich, both in the
Regency of Bavaria, Empire of Germany, Manufacturers, do hereby declare the nature
of this invention to be as follows:-
This invention consists in improvements in screw conveyors and has for its object
an economical and light construction of screw, and one that may be easily repaired
when damaged. Formerly the shafts of such screw conveyors have either been made
in one piece with the helical web or wings, or the latter have been formed in separate
picces or having a central perforated boss which is passed along the shaft and secured
in place. It is obvious with the latter construction should one of the wings break,
the whole apparatus has generally to be taken to pieces to enable the repairs to be
performed.
The improvements consist in forming the wings of sector shaped plates of steel,
sheet iron, or other suitable material provided with a flange at the end by, which they
are to be attached to the shaft, the said flange being of suitable height and shaped on
its under side so as to exactly fit to the shaft, which may be circular or prismatic-the
wings projecting radially therefrom but inclined helically in the usual manner.
Each of the said flanges is attached to the shaft by means of a screw bolt. Should
any of the wings break, by simply unscrewing the bolt, the damaged wing may be
removed and another wing screwed on in its place.
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page_text: I, LUDWIG RÖSSLER of Aibling and HEINRICH REINHARD of Munich, both in the
Regency of Bavaria, Empire of Germany, Manufacturers, 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 improvements in screw conveyors and has for its object
an economical and light construction of conveyor and one that may be easily repaired
when damaged. Formerly the shafts of such screw conveyors have either been made
in one piece with the helical web or wings, or the latter have been formed in separate
pieces or having a central perforated boss which is passed along the shaft and secured
in place. It is obvious with the latter construction, should one of the wings break,
the whole apparatus has generally to be taken to pieces to enable the repairs to be
performed.
The accompanying drawings illustrate the improved conveyor.
Fig. 1 being a longitudinal view. Fig. 2 end elevation and Fig. 3 a blank cut out
for the forming of one of the wings.
The improvements consist in forming the wings of sector shaped plates a of steel,
sheet iron or other suitable material provided with a flange a¹ at the end by which
they are to be attached to the shaft, the said flange being of suitable height and
shaped on its under side so as to exactly fit to the shaft, which may be circular or
prismatic, the wings projecting radially therefrom but inclined helically in the usual
manner. Each of the said flanges a¹ is attached to the shaft by means of a screw bolt
and bolts. Should any of the wings break, by simply unscrewing the bolt or bolts,
the damaged wing may be removed and another wing screwed on in its place.
The blanks are cut or stamped out in the shape shown in Fig. 3 and first a
recessing or hollowing is made in the part a' corresponding to the shape of the axle,
the flange is then bent up so as to be substantially perpendicular to the wing.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed we declare that what
we claim is―
In screw conveyors, the combination with a shaft of wings a having flanges a¹,
shaped to the shaft and connected thereto by means of screw bolts or equivalent
means.
Dated this 7th day of December 1887.
L. RÖSSLEK.
H. REINHARD.
By Herbert & Co.,
18, Buckingham Street, Strand, London, W.C.,
Agents to Applicants.