AN IMPROVED CONSTRUCTION OF TRAM RAILS AND METHOD OF FASTENING THEM IN CHAIRS WITHOUT KEYS OR BOLTS to be as follows:
Year: 1884

page_text: 1 ALBERT EVAN ADLARD of 33 Guildford Road, South Lambeth, Surrey, Tramway
Engineer, do hereby declare the nature of my said invention for "AN IMPROVED
CONSTRUCTION OF TRAM RAILS AND METHOD OF FASTENING THEM IN CHAIRS WITHOUT
KEYS OR BOLTS to be as follows:-
"
This invention relates to so making tram rails that they can by a squeezing or
clipping of the upper parts be dropped or forced into chairs whose inner upper faces
are undercut or inclined for the reception of correspondingly shaped outer sido
surfaces of the rails.
For the purpose of my invention I form the rails by rolling or otherwise with a
somewhat deep groove or channel slightly from the central line so as to Icavo
a tread for the car wheels on one side and with a comparatively thin portion as the
guard on the other. The bottom and lower exterior portions are rounded or of
other shape to sit in the chairs whoso seatings correspond for the purpose. The
channel or groove can be of any curvature on either side of its inner walls and is
of such a depth as to allow of the rails springing open on the removal of a squeezing
or clipping appliance by which the upper portions have been drawn slightly
towards each other.
Instead of inclining the upper side portions of the rail the lower portions can be
shaped that they or one side only can be sprung into rocesses formed in the body of
the chairs.
By this invention I do not require keys bolts or other kind of fasteners either to
hold the rails to the chairs or to intervening sleepers or supports.

page_text: I ALBERT EVAN ADLARD of 33 Guildford Road, South Lambeth, Surrey, Tramway
Engineer, do hereby declare the nature of my said invention for "AN IMPROVED
CONSTRUCTION OF TRAM RAILS AND METHOD OF FASTENING THEM IN CHAIRS WITHOUT
KEYS OR BOLTS," and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement:—
This invention relates to so making tram rails that they can by a squeezing or
clipping of the upper parts be dropped or forced into chairs whose inner upper faces
are undercut or inclined for the reception of correspondingly shaped side surfaces
of the rails.
For the purpose of my invention I form the rails A as at Figure 1 of the annexed
drawings by rolling or otherwise, with a somewhat deep groove or channel B
slightly from the central line so as to leave a tread C for the car wheels on one
side and with a comparatively thin portion D as the guard on the other. The
bottom and lower exterior portion E is rounded or of other shape to sit in the
chair Fas at Figure 1ª whose seating corresponds for the purpose. The channel or
groovo B can be of any curvature on either side of its inner walls and is of such
a depth as to allow of the rails springing open on the removal of a squeezing or
clipping appliance such as that shown at Figure 2 by which the upper portions have
been drawn slightly towards each other as indicated.
Instead of inclining the upper side portions of the rails, the lower portions GG
as at Figure 3 can be so shaped that they (or one side only if the rail be made to
the form shown at Figure 4) can be sprung into recesses formed in the body of the
chairs F. This Figure represents a roversible rail, the recess on the left hand side
corresponding to the shape of the wing D.
By this invention I do not require keys, bolts, or other kind of fasteners either
to hold the rails to the chairs or to intervening sleepers or supports.
The clip appliance shown at Figure 2 is composed of a central stem H to which
two jaws I, J, are jointed by the key bolt K. The jaws are hollow and have a
screw bolt L passed through them this having a nut M on the threaded end for
clamping the jaws to compress the top ends of the rail as shown at Figure 2 from
the position shown at Figure 1.
The chair F has a notch in each top faco for the ends of the jaws I J to ontor
to clip tho rail.
Two of such clipping jaws may be used one on each side of the chair if desired
for releasing the rail from the chair as well as when putting a rail into a chair.
This clipping device is available for the form of rail shown at Figuro 4 working
from the top and is equally applicable to squeezing the wings G G from the
underside of the rail. Other forms of clipping appliances can be made available
for use with my improved rails for the purpose set forth such as by lever,
hydraulic pressure, or otherwise.

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
The formation of tram rails shown in the annexed drawings, and any mere
modification thereof, by which said rails can be sprung into chairs or sleepers,
suitably shaped to receive them, and hold themselves within the recesses thereof
without the aid of bolts, scrows, keys, hooks, or other detachable fasteners as herein
described.