Year: 1887

page_text: Date of Application, 14th June, 1887
Complete Left, 19th Sept., 1887.
Complete Accepted, 21st Oct., 1887.
We, FRANCIS RINECKER, of Würzburg, Germany, Civil Engineer, and ROMAN
ABT of Lucerne, Switzerland, Civil Engineer, do hereby declare the nature of this
invention to be as follows :-
Our invention relates to the system of propulsion on railways wherein one or more
toothed wheels or pinions carried by the locomotive engine gear with one or more
racks on the permanent way.
Our improvements have reference to a modified construction of the teeth of the
rack in order to enable the pinions to gear therewith to the proper depth without
jamming, and to a mode of supporting the pinions upon the axle boxes of the engine
so that they shall not be subject to vertical vibrations.
For this purpose we mount on two adjacent axles of the engine box-shaped or
trough-shaped girders or stays, which enclose the axles and which are secured to the
axle boxes in any suitable manner, either adjustably or not, and to these girders we
fix two longitudinal bearers a sufficient distance apart to receive between them the
pinions gearing with the rack on the permanent way, and the pullies by which they
are geared together, the axes of the pinions being mounted in bearings in the said
longitudinal bearers. By preference I arrange two such pinions, each of which has
two sets of teeth gearing with two central racks on the permanent way, the axis of.
the one pinion being driven by cranks from the engine cylinders while the axis of the
other pinion is driven from the first by grooved pullies and bands.
The teeth of the rack or racks are shaped in such a manner that even in the case of
the pinions gearing with them to an undue depth, they cannot be caught or jammed,
this being effected by undercutting or hollowing out the flanks of the rack teeth at
their roots.
Dated thin 14th of 1007
ABEL & IMRAY,
Agents for the Applicants.

page_text: We, FRANCIS RINECKER of Würzburg Germany, Civil Engineer, and ROMAN ABT
of Lucerne, Switzerland, 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 :-
Our invention relates to the system of propulsion on railways wherein one or more
toothed wheels or pinions carried by the locomotive engine gear with one or more
racks on the permanent way.
Our improvements have reference to a modified construction of the teeth of the
rack in order to enable the pinion or pinions to gear therewith to the proper depth
without jamming, and to a mode of supporting the pinions upon the axle boxes of the
engine so that they shall not be subject to vertical vibrations.
For this purpose we mount on the axle boxes of two axles of the engine, box-shaped
or trough-shaped or open girders or stays, which enclose the axles and which are
secured to the axles boxes in any suitable manner either adjustably or not, and to
these girders we fix longitudinal bearers a sufficient distance apart to receive between
them the pinion or pinions gearing with the rack on the permanent way, the axes of
the pinions being mounted in bearings in the said longitudinal bearers.
The teeth of the rack or racks are shaped in such a manner that even in the case
of the pinions gearing with them to an undue depth, they cannot be caught or
jammed, this being effected by undercutting or hollowing out the flanks of the rack
teeth at their roots.
Fig. 1 of the accompanying drawings shews a part longitudinal section and Fig. 2
a part transverse section of an engine with toothed driving gear arranged according
to our above described invention.
To the axle boxes b of the wheel axles a are attached transverse box-shaped girders
or bearers, and to these are fixed longitudinal bearers that carry the crank axes of the
toothed pinions pp gearing with the racks c c on the permanent way. Thus the
pinions are rendered entirely independent of the play of the springs of the engine.
The transverse girders or bearers s may either be entirely closed as shewn or more or
less open at the sides, and they may either be permanently bolted or rivetted to the
axle boxes or be attached thereto by links or otherwise, or they may be so connected
in any suitable manner as to admit of regulating, by means of keys, screws &c., the
height of the bearings of the pinions p in proportion to the wear of the tyres.

page_text: Fig. 3 shews an enlarged view of part of the rack, the teeth of which are
undercut or hollowed at u u, for the purposes hereinbefore stated.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed we declare that what we claim is :-
1. In locomotive engines for rack railways, the use, for carrying the toothed
pinions, of transverse girders or bearers of box or other shape supported by the axle
boxes, substantially as and for the purpose described.
2. Constructing the racks of rack railways with teeth having undercut flanks,
substantially as and for the purposes described.
Dated thi 10th
1007