Courtyards, and the like.
Year: 1887

page_text: Courtyards, and the like.
I, AUGUSTIN HENTSCHEL, Fabricant, of Berlin, in the Kingdom of Prussia and
German Empire, 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:-
The object of my invention is to provide a machine by means of which streets,
courtyards and the like may be cleared of dust or mud or of snow, water being
employed in dealing with dust or mud and heated water or a suitable chemical
solution being used for melting snow, and the removal of the mud or slush from
the path of the machine being effected by means of a helical scraper constructed as
hereinafter set forth.
In the accompanying drawings figure 1 is a front elevation of the machine, figure 2
a side view, figure 3 an inverted plan showing the arrangement of the operating
parts, figure 4 a cross section of the helical scraper used for removing the mud and
figure a longitudinal section through the cylinder i which is used to water the
roadway. The apparatus comprises a water tank or reservoir a enclosing a furnace b
and mounted over the operating gear upon a carrying wheel or roller c¹ in front, and
a rear wheel or roller c, which latter by its rotation imparts movement to the operative
parts of the machine. On the axle d of the roller c toothed wheels e are secured and
these through intermediate gearing drive the helical scraper g, and by means of the
gearing h rotate the water delivery roller against the forward movement of the
machine. The rollers g and i as also the intermediate gear are carried in frames k
and are raised by means of levers 1, 1, when the driver of the machine mounts upon
his seat m.
In this position the apparatus is out of action and when it is to be put
into operation the driver stands upon the step n. The scraper g is composed of a
wooden roller having around its circumference webs or ribs o of rubber or other
elastic material secured on edge in helical lines, these helically disposed ribs being
designed to convey the mud and slush to one side of the machine on the rotation of
the roller. To prevent the ribs o taking too hard a hold upon the roadway the shaft,
D', Ը. 1

page_text: carrying the roller g is fitted on both sides with roller discs p of somewhat smaller
diameter than the helical scraper. The water delivery roller is composed of a cast-
iron perforated cylinder whose periphery is wrapped round with several layers of
jute, Manilla, or other textile material q through which the water percolates. This
roller serves a twofold purpose. In summer it serves to soften or moisten the dust or
mud on the streets whilst in winter it serves to melt the snow. The water passes from
the tank a, to the roller i through a valve r, controlled by the driver the water
entering the roller at both ends. The machine may be driven by animal draught or
by mechanical means.
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
1. A machine for melting snow or cleaning streets consisting of a portable water
tank or reservoir having within it a furnace for heating the water and under it a
helically ribbed roller or scraper and a water delivery roller operated from the carrying
wheel axle and adapted to be thrown into and out of action from the driver's seat,
substantially as described.
2. In a machine of the class hereinbefore described the roller or scraper g, formed
with helically disposed ribs of elastic material, substantially as and for the purpose
set forth.
3. In a machine of the class hereinbefore described the water delivery roller i,
composed of a perforated cylinder enwrapped with layers of jute, or other textile
material substantially as set forth.