IMPROVEMENTS IN RAILS FOR TRAMWAYS
Year: 1884

page_text: I, GUSTAV LENTZ, Engineer, of 2+ Victoria Strasse, Düsseldorf, Prussia, German
Empire, do hereby declare the nature of my said invention for " IMPROVEMENTS IN
RAILS FOR TRAMWAYS" to be as follows:-
My invention relates to a construction of flanged rail with grooved head, the rail
being formed of two separate parts rivetted or bolted together, and so formed that
the width of the groove may be varied, according as the rail is situated in a
straight part of the line or in a curve, and may be suppressed altogether when the
line of tramway is situated in roads where the head can be sufficiently raised above
the surface of the road.
For this purpose, the one part of the rail consists of a head, forming the tread
for the wheel, a web, and one half of the flanged base, while the second part
consists of a cranked head or top, a web, and the second half of the flanged base.
The two parts are placed with their webs against each other, the web of the second
part being made to fit into a recess in the web of the first part, so that when the
two parts are bolted or rivetted together, they are securely locked in each other.
The cranked head of the second part of the rail forms the groove at the side of the
head of the first part, for the flange of the wheel to run in. For the first named
part of the rail one and the same sectional profile is always employed, but for the
second part three different sectional profiles are employed, the one having a broad
cranked head, for forming a broad groove to the rail, the second having a narrower
cranked head, for forming a narrow groove, and the third having no cranked hend,
so that the outer surface of the web is flush with the inner face of the head of the
first part of the rail, this section being employed when no groove is required.
As the lengths of the two parts of the rail are made to break joint with each
other, they form a continuous rail, thus dispensing with fish plates.
-
1
TI
1001
ABEL & IMRAY,.
Agents for the Applicant,
28, Southampton Buildings,
London, W.C.

page_text: "
I, GUSTAV LENTZ, Engineer of 24 Victoria Strasse Düsseldorf, Prussia, German
Empire do hereby declare the nature of my invention for IMPROVEMENTS IN
RAILS FOR TRAMWAYS and in what manner the same is to be performed to be
particularly described and ascertained in and by the following statement :—
"
My invention relates to a construction of flanged rail with grooved head, the rail
being formed of two separate parts rivetted or bolted together and so formed that
the width of the groove may be varied according as the rail is situated in a
straight part of the line or in a curve, and may be suppressed altogether when the
line of tramway is situated in roads where the head can be sufficiently raised above
the surface of the road.
For this purpose, the one part of the rail consists of a head, forming the tread
for the wheel, a web, and one half of the flanged base while the second part
consists of a cranked head or top, a web, and the second half of the flanged base.
The two parts are placed with their webs against each other, the web of the
second part being made to fit into a recess in the web of the first part, so that
when the two parts are bolted or rivetted together they are securely locked in cach
other. The cranked head of the second part of the rail forms the groove at the
side of the head of the first part, for the flange of the wheel to run in. For the
first named part of the rail, one and the same sectional profile is always employed
but for the second part three different sectional profiles are employed, as shown on
the accompanying drawings. Fig. 1 shews the main or tread rail A combined with
the cranked rail B for forming a groove of normal width. The rail B has also a
broad foot, and fits with its web into a corresponding recess in the web of A, so as
to practically form one therewith, when the two are secured together by rivets or
screw bolts as shewn, so that the web of each part can be made comparatively
thin. The section here shewn is that mainly suited for straight paved roads. In
curves the section shewn at fig. 2 is employed, the cranked head of B being
made of increased width so as to form a correspondingly wider groove, such
width being made greater or smaller according as the curve is of smaller or
greater radius. When the line runs along a country road, the section shewn at
fig. 3 can be used the part B being in this case formed without any cranked
head, while the outer surface of its web is made to coincide with the inner side o
of the head of A.
As in the above construction the lengths of the two parts of the rail are made to
break joint with each other, they form practically a continuous rail requiring no
fah ladan

page_text: 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
Constructing grooved flat footed rails of two parts the webs of which interlock
with one another and are secured together by rivets or screws, the cranked head
of the part constituting the groove being formed of variable width, substantially as
herein described.