IMPROVED APPARATUS. FOR ENGAGING TRUCKS OR WAGONS WITH ENDLESS HAULING ROPES
Year: 1876

page_text: LETTERS PATENT to John Gilmour, of Glasgow, in the County of Lanark,
North Britain, Engineer, for the Invention of "IMPROVED APPARATUS. FOR
ENGAGING TRUCKS OR WAGONS WITH ENDLESS HAULING ROPES."
Sealed the 7th October 1876, and dated the 15th April 1876.
PROVISIONAL SPECIFICATION left by the said John Gilmour at the Office
of the Commissioners of Patents on the 15th April 1876.
_JOHN GILMOUR, of Glasgow, in the County of Lanark, North Britain, Engineer.
IMPROVED APPARATUS FOR ENGAGING TRUCKS OR WAGONS WITH ENDLESS HAUL-
ING ROPES."
"
This Invention relates to apparatus to be used in connection with endless bauling
ropes, such as are now coming into use in mine or underground ways, and in
quarries and other places. An endless hauling rope of the kind referred to is
arranged on guide pulleys along the road or truck way, and is kept continually
running, the trucks or wagons being engaged with it without stopping it whenever
they are to be hauled by it.
The improved apparatus for effecting the engagement consists of a pair of levers
jointed together upon a pin projecting on both sides to form trunnions, by which
the levers are supported in bearings on the truck. At their upper ends the levers
have screwed nuts jointed to them, through which are tapped the ends of a right
and left-handed screw spindle having a handle on one end of it. The lower ends
of the levers are shaped with half-round hollows in each to grip the hauling rope;
but parts of the gripping ends are made with bevilled points which overlap each
other in such a way that the levers may be partly opened without dropping the
hauling rope when, it is wished to make a temporary stoppage. The engagement is
effected by drawing the upper ends of the levers together by the screw spindle, and
the levers being crossed this causes the lower ends to close on the rope. A one-
handed screw spindle may be used for drawing the levers together, or any suitable
Price Gd1

page_text: eccentric or cam action or toggle joint arrangement may be substituted, but the
right and left-handed screw spindle is preferred. The pair of levers can rock on
the supporting trunnions, which has the important advantage of allowing the
gripping ends to deviate slightly when passing beside the horizontal pulleys required
for guiding the rope where the road is curved.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by the
said Jolin Gilmour in the Great Seal Patent Office on the 13th October
1876.
JOHN GILMOUR, of Glasgow, in the County of Lanark, North Britain, Engineer.
"IMPROVED APPARATUS FOR ENGAGING TRUCKS OR WAGONS WITH ENDLESS HAUL-
ING ROPES."
My said Invention relates to apparatus to be used in connection with endless
hauling ropes, such as are now coming into use in mine or underground ways and
in quarries and other places. An endless hauling rope of the kind referred to is
arranged on guide pulleys along the road or truck way, and is kept continually
running, the trucks or wagons being engaged with it without stopping it whenever
they are to be hauled by it.
And in order that my said Invention and the manner of performing the same
may be properly understood, I hereunto append a Sheet of explanatory Drawings
to be herein-after referred to and representing a modification of my improved
apparatus.
In these Drawings the same reference numerals are used to mark the same or
like parts wherever they are repeated.
J
Figure 1 is a sectional elevation showing one modification of my improved appa-
ratus as fitted to a truck; and Figure 2 is a vertical section as at right angles to
Figure 1. The apparatus consists of a pair of levers 3, 4, jointed together upon a
pin 5, projecting on both sides to form trunnions by which the levers are supported
in bearings formed in bars 6, which extend across and are bolted to the side frames 7
of the truck. At their upper ends the levers 3, 4, are forked and have screwed
nuts 8 jointed to them, through which are tapped the ends of a right and left
handed screw spindle 9, having a handle 10 on one end of it. The lower ends of
the levers 3, 4, are increased in breadth and are shaped to face each other and with
hollows in each to grip the hauling rope. The hollows are by preference shaped so
as to form an oval opening when the levers are closed, and so as to slightly com-
press the hauling rope and prevent slipping. The engagement of the rope is
effected by drawing the upper ends of the levers 3, 4, together by the screw
spindle 9, and the levers being crossed this causes the lower ends to close on the
rope. A one-handed screw spindle may be used for drawing the levers together, or
any suitable eccentric or cam action or toggle joint arrangement may be substituted,
but the right and left-handed screw spindle is preferred. The pair of levers 3, 4,
can rock on the supporting trunnions 5, their movement being limited by the length
of a slot 11 in a bar or plate 12 bolted to the side frames 7, through which slot the
lower or gripping ends of the levers pass, and this arrangement has the important
advantage of allowing the gripping ends to deviate as shown when passing beside
any, 13 of the horizontal or nearly horizontal pulleys required for guiding the rope
where the road is curved.
Having thus particulary described my said Invention, and the manner of 'per-
forming the same, I have to state that I do not restrict myself to the precise details
herein described or delineated; but that what I believe to be novel and original,
and claim as the Invention secured to me by the herein-before in part recited
Letters Patent is, the combination of a pair of gripping levers with trunnion

page_text: supports and arranged substantially as herein-before described for engaging trucks
or wagons with endless hauling ropes.
In witness whereof, I, the said John Gilmour, have hereunto set my hand
and seal, this Eleventh day of October, in the year of our Lord One thou-
sand eight hundred and seventy-six.
Witness,
EDMUND HUNT,
Patent Agent,
Glasgow.
JOHN GILMOUR. (L.S.)