Improvements in Sanding Apparatus for Locomotives.
Year: 1895

page_text: Date of Application, 12th Sept., 1895-Accepted, 12th Oct.,
1895
COMPLETE SPECIFICATION.
Improvements in Sanding Apparatus for Locomotives.
I GUSTAV LENTZ, of 18 Uhlandstrasse, Dusseldorf, in the Empire of Germany,
Civil Engineer, 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 :-
In sanding apparatus as usually constructed, an ejector placed outside the sand
box is used to produce a vacuum by which an air current is induced which air
current lifts the sand through a sand trap, and over a bridge to the steam blast.
This invention has for its object to provide an apparatus which shall be simple
in construction and requiring no ejector sand trap or bridge, nor the production of
a vacuum and air current, and in which the sand is not drawn from the sand box
by suction but is directly forced out of it, and consists essentially in placing the
sand blower which consists of a tube into which the sand enters by a side hole and
into which steam or air under pressure enters in the lower part of the sand box.
The steam or air under pressure forces the sand which enters by the side hole into
the pipe leading between the wheel and rail and supplying sand and steam to
prevent slipping.
In the accompanying sheet of illustrative drawings.
Fig. 1 shows a locomotive fitted with sanding apparatus constructed according to
this invention and
Fig. 2 is a view to a larger scale showing the sand blower.
Fig. 3 shows the sand box arranged on top of the boiler the sand blowers being
placed to the right and left of the sand box.
The sand boxes A are placed on either side of the locomotive and pipes C lead
from the boiler when steam is used, or from the compressed air reservoirs when air
pressure is used. The valve B serves for regulating the admission of steam or air
to the pipe C. The pipe C leads to the sand blower D which is placed in the
lower part of the sand box A. Sand enters by the side hole F into the blower D
and steam or air under pressure enters from the pipe C through the small hole E
and forces the sand through the pipe G forming a jet of sand and steam entering
between the wheel and the rail and preventing slipping. The sand blower D is
provided with a flange I by which it is secured to the sand box A.
A steam trap H is provided to prevent water entering the sand blower.
When used for tank engines which are required to work in both directions
in regular service, sanding apparatus has to be provided for both directions, and the
valve B may be arranged for three positions in one extreme position admitting air
or steam to the sand blowers for forward working and in the other, to those for
backward working the central position closing both sets of pipes.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is.
1. A sand blower consisting of a short pipe with a sand entering hole on one
side, a central hole at the upper end for the entering of steam or air and at the
lower end for the outlet of the sand blast, substantially as described.
2. The combination of this sand blower, fastened in the sand box of a locomotive
with a cock and pipe for steam or air and a sand pipe which leads the sand blast
between the wheel and rail substantially as described.

page_text: 3. The arrangement and construction of sanding apparatus for locomotives
substantially as described with reference to the drawings.
Dated this 12th day of September 1895.
WHEATLEY & MACKENZIE,
40 Chancery Lane, London, W.C., Agents.