Year: 1898

page_text: Date of Application, 27th Sept., 1898-Accepted, 23rd Sept., 1899
Public Works Department, at present residing at Quetta, British Baluchistan,
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 nature of the invention is illustrated in the accompanying drawing in
which similar characters of reference refer to similar parts throughout the various
views in which
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Figure 1 is a cross section of a pair of flat footed rails and chaira
Figure 2 is a plan of the same.
Figure 3 is a longitudinal elevation.
"
66
"
Figure 4 is a cross section of a bulb. footed rail and chair and Figure 5 is
a section taken on the line m, n, Figure 2 showing the form of the movable jaw.
Two metal (usually cast iron) plates (P, P) (see Figures 1, 2, 3 and 4) each
furnished with one fixed "clip or "jaw" (J, J) and with one loose or movable
clip
gauge
or "jaw" (J, J¹) are connected, and held together, by a tie or
bar (T) which is attached to the "jaws" (and thereby to the metal plates) by
means of two distance pieces (D D) and two "keys" (K K), and the distance
apart of the plates is regulated and adjusted by means of the said "
gauge" bar,
"distance pieces," and "keys," so as to obtain the desired gauge of the railway.
On the upper side of each plate are four transverse ribs (RR), (R' R¹) (see
Figures 2&3). In each of the loose or movable "jaws" (J' J¹) two grooves are
provided (one on each side) which fit and slide over corresponding projections on
the inner sides of the two central transverse ribs (R¹ R¹) (see Figures 3 & 5) by
which means the loose or movable "jaws" are secured to the metal plates, and
can be so adjusted that varying sizes of rails may be used with the same sleeper.
Between the transverse ribs (Ⓡ R) blocks of wood (W W) are placed (two on
each plate). These blocks of wood are made wedge-shaped having an inclination
corresponding to the inclination or cant" at which it may be desired the rails
should rest on the sleepers, and placed so that their thinner ends face inwards
that is towards the centre of the track, or line of rails they furnish
longer and more suitably distributed support than usual to the rails by each
sleeper. The portions of the plates on which the blocks of wood rest are, when
desired, serrated transversely to the length of the wooden blocks, and so that the
vertical edges of the indentations face in the same direction as the thin ends of
the wooden blocks (see cross section C-D Fig. 1, & Fig. 4)
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"
"
"
"
a
&
The rails being placed on the blocks of wood, the loose or movable jaws placed
in position, and the tie or gauge bar secured by the "distance pieces
keys," the wedge-shaped blocks of wood are driven inwards, that is in the direc-
tion of their thinner ends, thereby tightening up and firmly securing the rails
between the "jaws" and wooden blocks on which they (the rails) rest.

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:
"
(1) The employment of wedge-shaped blocks of wood interposed between the
rails and metal plates on each side of the chair jaws in such a manner that by
driving the said blocks of wood in the direction of their thinner ends, the rails
are firmly held between the blocks of wood and "jaws or "clips" attached to
the metal plate, and by which means also this fastening can be tightened up from
time to time as desired and the rails thereby kept securely attached to the
sleeper without the insertion of bolts, spikes, or other fastenings into the blocks
of wood.
.
(2) Providing by means of the said blocks of wood a longer and more suitably
distributed support than usual to the rails by each sleeper.
(3) The method of attaching the loose jaws" to the metal plates by grooves
and projections as described.
(4) Serrating or indenting, if desired, the portions of the plates on which the
blocks of wood rest with a view to provide additional security against the said
blocks of wood working loose.
(5) The combination as a whole of the several parts substantially as described
and illustrated.
Dated this Twenty-fifth day of August 1898.