Year: 1887

page_text: [Communicated from abroad by EDWARD DYER DOUGHERTY, of Philadelphia,
Pennsylvania, United States of America, Manufacturing Engineer.]
I, ALFRED JULIUS BOULT of 323 High Holborn in the County of Middlesex,
M.I.M.E. 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 object of this invention is to provide improved supports for the sections of
conduit pipe and for the pulleys used in combination therewith and to provide for
the escape of water and liquid mud or like material therefrom, to prevent lateral
strain on the "grip" when rounding curves and to construct and arrange pulleys
which shall more effectually guide the cable especially when rounding curves without
injury to the cable and with reduced friction.
In the accompanying drawings: Figs. 1, 2, 3 and 4 illustrate the improved
bracket or conduit pipe support with improved bearing for pulley and means for
carrying off water.
Fig. 1 is a longitudinal vertical section on line - Fig. 2. Fig. 2 is a transverse
section of the device in position with pulley supporting pocket taken on line x-x
Fig. 1. Fig. 3 is a cross section on line y-y Figs. 1 and 2 and Fig. 4 is a cross
section of the drain pipe taken through line, Fig. 2.
A is the body of the bracket portions of which are cut away for the purpose of
lightening the same, the outer edges being strengthened by a continuous flange A!.
In the middle of the top flange an opening occurs which is continued downwards
J

page_text: conformably to the shape of the conduit pipes B and two flanges A" are formed at
right angles to the web or body A so as to form a short open tube which coincides
exactly with the sectional form of the conduit tubes B. The latter are enlarged at
the ends so as to form socket flanges B' which fit closely over the flanges A"
when the bracket and pipes are laid in position in the road bed. This method of
connection and adjustment will facilitate the formation of a continuous conduit pipe
and hold it the adjusted and coupled sections in axial alignment. Immediately
below the centre of the short chamber formed at the junction of the flanges Ba
sub-chamber C (see figs. 1 and 2) is formed of such size as to allow a guide pulley D
to be mounted therein upon an axis D₁ which rests in sockets open at the top that
are cast in projecting bosses formed on the side wall of the chamber. The flanges A"
are made integral with the wall of the chamber C joining it at a point corresponding
to the axial centre of the said chamber. A neck pipe C descends vertically from the
sub-chamber C and forms an open connection between the chamber with a sewer or
drain pipe C¹. The form of the chamber C is calculated to combine rigidity with
sufficient elastic strength to compensate for expansion and contraction of material to
resist vertical as well as lateral pressure and the disrupting influence of frost. The
pipe C acts as an additional brace to the bracket flanges A¹ and being situated at
the lowest point of the said chamber will effectually carry off all water that may
enter from above. The pulley D is so mounted that the major portion thereof is
contained in the chamber C and consequently the vertical depth of the projecting
flanges that carry the conduit pipes can be materially reduced the sectional area of
the short chamber formed by these flanges is also contracted so as to permit a
comparatively small conduit to be used as the space hitherto required in conduits in
which the pulleys have been interiorly located is rendered unnecessary so that a
remarkable reduction in the amount of material required for construction is
obviously effected thereby rendering the cost of production much less than
heretoforc.
Figs. 5 and 6 illustrate the manner in which the "grip" is supported against lateral
strain when rounding curves as well as the manner of arranging and supporting the
guide pulleys. Fig. 5 is a view of the conduit in vertical section and fig. 6.is a plan
view of the same with top of conduit removed. As in the preceding figures A
represents the bracket and B the conduit. At a point about where the arch and
upright portion of the side wall unite is a rail E preferably cast integral with the side
and extending horizontally therefrom to a point near where the side of the grip
would naturally travel.
The rail E is curved to conform to the curve of the conduit and it is provided
with a removable shoe or wearing plate e secured thereto against which the anti-
friction rollers F on the side of the grip F bear. as the car travels around
the curve.
The rail E is supported by diagonal web braces E' preferably cast integral with the
rail and side of conduit.
On the underside of the rail E are formed one or more bearings G either cast
integral with the rail or firmly secured thereto in which bearings are journalled
the upper ends of one or more guide pulley-shafts H. The lower end or ends of
the shaft or shafts H are stepped in the bracket I which also carries one end of the
shaft of the cable supporting pulley K. A second cable supporting pulley K¹ is
mounted in the end of a laterally extending bracket K" secured to or cast on the
side of the conduit. This bracket K" affords a middle bearing for the shaft H upon
which are mounted two cable guide pulleys N, N¹ the former of which revolves at
right angles to the pulley K the peripheries or adjacent edges of the two being as
nearly as possible in contact whilst the pulleys K' and N¹ are mounted in the same
relative positions.
L represents the main cable and an auxiliary cable located above and slightly to
one side of the cable L to be used when on account of breakage or need of repairs
the main cable I, is not run. The position of the auxiliary cable above and slightly
to one side of the cable L necessitates a shorter and slightly bent grip.

page_text: Fig. 7 shows a transverse section of a conduit with guide pulleys for a single cable
only. In this figure the rail E instead of being strengthened by webs is supported
by bars E bolted to the upper portion of the conduit.
Instead of arranging the cable guide pulleys in pairs with their adjacent edges
nearly in contact they may be arranged as shown in figure which is a transverse
section of a conduit and fig. 9 which is a sectional plan thereof. Here as will be seen
a series of horizontal rollers M are mounted in hearings me at a suitable distance apart
and these bear the weight of the cable L whilst an equal number of vertical rollers N
mounted in bearings n are placed alternately with the horizontal ones and serve to
guide the cable when passing round a curve.
It will be noticed that the cable supporting and guide pulleys shown in figs. 5, 7,
8 and 9 are quite plain on the surface the grooved pulleys commonly used being
discarded. By adopting this construction of pulley the points of contact between the
cable and its supporting and guiding pulleys are reduced to lines, and therefore the
frictional abrasion of the material of said cable will be comparatively slight and its
durability proportionately increased.
Although the plain faced pulleys are everywhere shown at right angles to each
other that is to say either vertical or horizontal it is evident that this angle may be
varied or the pulleys may be inclined without departing from the spirit of the
invention.
When the cable is guided around curves by pulleys arranged in pairs at right
angles to each other as shown in figures 5 and 7 each pulley is worn upon one edge of
its circumference only, thus such pulleys become unfit for wear and have to be
constantly replaced.
Fig. 10 of the accompanying drawings shows a cross section of a pulley constructed
to remedy this inconvenience. Fig. 11 is a full elevation thereof, Fig. 12 a side
elevation, Figs. 13, 14 and 15 are details. The pulley consists of a boss P along with
which are cast radial arms P¹ a rim P" and in the centre of the latter a rib P
Around the rim on each side of the rib P are placed wearing rings R of such
width and thickness as to be flush with the outer edges of the rim P and with the
circumference of the rib P so as to form practically a solid plain faced pulley
as is shown in fig. 11. The wearing rings are secured in position by means of
screws one half of the screw way being formed in the rim P and the other in
the ring.
The inner ends only of the screws are threaded and the female threads are formed
entirely in the rib P. Thus it will be seen that the rings R may be readily
attached to and removed from the peripheries of the pulley. As the wear of the
cables comes only on the adjacent edges of the pulleys they may be readily
reversed to present their opposite edges to each other thereby doubling their
durability. When both wearing rings have become worn they may be replaced and
new ones substituted.
Having now particularly described and ascertained the nature of the said invention,
as communicated to me by my foreign correspondent, and in what manner the same is
to be performed, I declare that what I claim is
1. The combination with the herein described supporting bracket of the chamber C
as and for the purposes mentioned and as illustrated in the annexed drawings.
2. The cable railway bracket provided with flanges such as A" for supporting the
ends of the conduit pipes substantially as described.
3. The cable railway bracket having flanges such as A" and pulley chamber C
formed in one piece substantially as described.
4. In a cable railway the employment of plain faced pulleys for supporting and
guiding the cable round curves substantially as described.
5. In the cable railway bracket or conduit the combination of a rail such as E
provided with a journal bearing G on its under side with guide and supporting pulleys
such as K K, N N¹ mounted at a suitable angle to each other substantially as
described and illustrated in the accompanying drawings.

page_text: 6. The combination of horizontal plain faced cable supporting pulleys and vertically
supported plain faced pulleys that alternate in position with the horizontal pulleys
substantially as specified and illustrated in figs. 8 and 9 of the accompanying
drawings.
7. The construction of a pulley for the cables of traction railways with removable
rings such as R at its outer edges in the manner and for the purposes substantially as
described.
8. In a pulley having removable wearing rings such as are hereinbefore mentioned
the combination with rim P and rib P of rings R and screws & for holding the
same in position substantially as described and illustrated in figs. 10 to 15 inclusive
of the accompanying drawings.
9. The complete bracket constructed substantially as described and illustrated in
fig. 5 of the accompanying drawings.