Improvements in or relating to Guide Pulleys, and in Apparatus connected therewith.
Year: 1897

page_text: Date of Application, 18th Nov., 1897
Complete Specification Left, 8th Jan., 1898-Accepted, 19th Mar., 1898
<<
PROVISIONAL SPECIFICATION.
Improvements in or relating to Guide Pulleys, and in Apparatus
connected therewith.
I, WALTER MARTIN MUSGRAVE, of the Firm of John Musgrave and Sons,
Limited," Globe Iron Works, Bolton, in the County of Lancaster, Engineers
and Millwrights, do hereby declare the nature of my said invention to be as
follows:-
This invention consists of improvements in or relating to guide pulleys and in
apparatus for adjusting driving straps or ropes without the necessity of re-piecing
or re-splicing to take up slack to maintain the efficiency of the same. This I effect
by employing a pillar or, other fixing on which is mounted an adjustable sleeve
with suitable locking arrangements. The sleeve is provided with a chain, spiked,
or indented pulley to operate a worm gearing with a spur or worm wheel gearing
with a spur rack on or in the said pillar fixing, which may be operated from the
floor of a room or any other convenient position in which it may be located, thereby
dispensing with the use of ladders and the like. In addition to the worm gearing
arrangement I employ on the opposite side of the spur rack a ratchet or "pawl
to engage with teeth or projections to keep or maintain the guide pulleys in
position. This arrangement is equally applicable to guide pulleys disposed in
varying positions. To facilitate the operating and alteration of the adjustable
sleeve to produce the desired effects I employ a pole on the upper end of which
is located a headpiece with curved or other projections in contrary directions to
place the straps or ropes on the pulleys or operate the chain or other pulley. In
the latter case the chain or the band pulley is provided with holes or their
equivalents to allow of the same being rotated by means of the projections on the
upper end of the aforesaid pole. To prevent the twisting of the adjustable sleeve
and maintain the correct position for the strap or rope the former is held in position
by a flat or other key or by a set screw on their equivalents. The strap or rope
pulleys are mounted on centres disposed in bearings provided with suitable
lubricating arrangements.
Dated the 17th day of Novembar 1907

page_text: 68
Improvements in or relating to Guide Pulleys, and in Apparatus
connected therewith.
I, WALTER MARTIN MUSGRAVE, of the Firm of John Musgrave and Son 3,
'Limited," Globe Iron Works, Bolton, in the County of Lancaster, Engineers
and Millwrights, do hereby declare the nature of my said invention and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement: -
This invention consists of improvements in or relating to guide pulleys and in
apparatus for adjusting driving straps or ropes without the necessity of re-piecing
This I effect
or re-splicing to take up slack to maintain the efficiency of the same.
by employing a pillar or other fixing on which is mounted an adjustable sleeve
with suitable locking arrangements. The sleeve is provided with a chain, spiked,
or indented pulley to operate a worm gearing with a spur or worm wheel gearing
with a spur rack on or in the said pillar fixing, which may be operated from the
floor of a room or any other convenient position in which it may be located, thereby
dispensing with the use of ladders and the like. In addition to the worm gearing
pawl
arrangement I employ on the opposite side of the spur rack a ratchet or
to engage with teeth or projections to keep or maintain the guide pulleys in
position. This arrangement is equally applicable to guide pulleys disposed in
varying positions. To facilitate the operation and alteration of the adjustable
sleeve to produce the desired effects I employ a pole on the upper end of which
is located a headpiece with curved or other projections in contrary directions to
place the straps or ropes on the pulleys or operate the chain or other pulley. In
the latter case the chain or the band pulley is provided with holes or their
equivalents to allow of the same being rotated by means of the projections on the
upper end of the aforesaid pole. To prevent the twisting of the adjustable sleeve
and maintain the correct position for the strap or rope the former is held in position
by a float or other key or by a set screw or their equivalents. The strap or rope
pulleys are mounted on centres disposed in bearings provided with suitable
lubricating arrangements.
DESCRIPTION OF DRAWINGS.
Fig. 1-Sheet 1-is a vertical side view of my improvements in or relating
to guide pulleys and in apparatus connected therewith-Fig. 2 a vertical end view
of Fig. 1Fig. 3 a plan through line A B in Fig. 2-Fig. 4 a front view of chain
or operating pulley-Fig. 5 an end view of Fig. 4 showing spikes-Fig. 6 a part
end view of rope guide pulley-Fig. 7-Sheet 2-is a vertical side view of another
modification of my improvements in or relating to guide pulleys and in apparatus
connected therewith-Fig. 8 a vertical end view of Fig. 7-Fig. 9 a sectional
plan through line CD in Fig. 7-Fig. 10 a side elevation of chain or operating
pulley, Fig. 11 a side elevation of pole for placing belts and ropes on pulleys
is a vertical side view of invention
and rotating the latter-Fig. 12-Sheet 3
with the adjustable carrying arrangements inverted-Fig. 13 a side elevation of
Fig. 12, and Fig. 14 a-front view of adjustable sleeve showing worm wheel.
In all the figures the same letters are employed to indicate corresponding parts.
E is a pillar or fixing which may be circular as shown, square, or any other
polygonal form G adjustable sleeve-H worm-I worm wheel-K spur toothed
pawl"-N guide pulley-0 belt
rack L angular toothed rack-M ratchet or
or rope, and 03 guides to arrest belt or rope O in case they slip off the guide
Dullave N
"

page_text: "
"
On the pillar or other fixing E is mounted the adjustable sleeve G provided
with the bracket P and bearing Q in which is located the shaft or spindle R. On
the latter is fixed the worm H secured by the pin or set screw S. The outer end
of the shaft or spindle R is fitted with the chain, spiked, or indented pulley T.
The worm H gears into the worm wheel I secured to the centre U mounted in
bearings in the bracket P. The worm wheel I gears with the spur toothed rack K
on the pillar or fixing E. On the opposite side of the pillar or other fixing E
to that of the spur toothed rack K is disposed the angular toothed
rack or projections L with which engages the ratchet or "pawl" M
to keep or maintain the adjustable sleeve G and guide pulleys N in
their correct working position. The adjustable sleeve G is provided with the
pawl' M
brackets or projections t between which is disposed the rachet or
supported by the pin or centre S. The outer end of the ratchet or
pawl" M
is provided with the lever with the hole z. To prevent the adjustable sleeve G
twisting and maintain the correct working position of the guide pulleys N, metallic
washers Y¹, carrying frames W, and the strap or rope 0, the adjustable sleeve G
is provided with the set screws X or their equivalents. The carrying frames W
are secured to the flange Y located on the upper end of the adjustable sleeve G
by the metallic washers Y'; the bolts Z passing through the slots a shown in
Fig. 3. The guide pulleys N are mounted on the centres d disposed in the bear-
ings f on the lower end of the carrying frames W; the said bearings being
provided with any suitable lubricating arrangements. If desired the guide
pulleys N may be arranged as shown in Figs. 7, 8 and 9, being supported on the
centres d secured to the adjustable sleeve G by the nuts Z. In this arrangement
or modification the operations are precisely similar to those described in Figs. 1
and 2. In case it is desired or necessary to raise the sleeve G on the pillar or
fixing E the ratchet or "pawl" M will disengage and re-set itself with the angular
toothed rack L, but when the sleeve G is to be lowered for any purpose the said
ratchet or "pawl" M is placed out of action by operating the lever v in the
direction of the
which may be effected by employing the pole e³ and
placing the circular end a³ in the hole z. The circular end may be utilized for
rotating the guide pulleys N when placed in the holes .
In order that my said invention may be readily understood and carried into effect
I will now proceed to describe the manner of fixing and operating the same.
The upper end of the pillar or other fixing E is provided with the base plate
or flange A and bosses B2 through which passes the bolts C3; the latter being
provided with the nuts D2 and the hooked heads E2 for securing the aforesaid
pillar or other fixing E to the metallic beam G2 as shown in Figs. 1 and 2. In
case the pillar or other fixing E is intended to be fixed to a wood beam in lieu
of the metallic beam G the base plate or flange A² may be of any other desired
form and secured thereto by means of ordinary bolts, or by what are well known
in the trade as wood or coach screws. When it is desired or necessary to tighten
or slacken the driving strap or rope the attendant operates or rotates the chain
pulley T by means of the endless chain T in either direction to produce the
desired effect. When the chain, spiked, or indented pulley T is rotated the shaft
or spindle R carrying the same is operated likewise, thus actuating the worm H
and causing the worm wheel I to be rotated. The worm wheel I gears into the
spur toothed rack K in the pillar or fixing E, and when the worm H is rotated the
adjustable sleeve G is slid up or down as desired to tighten or slacken the driving
strap or rope 0. If desired the endless chain T¹ may be dispensed with, in which
case the pulley T is provided with the indents p as shown in Fig. 10, Sheet 2, by
which the pulley T may be rotated by means of the circular end a³ on the end
of the metallic head y³ on the end of the pole e³; the opposite end of the metallic
head being employed for placing the ropes in position when employed in lieu of
straps. The flat-upper face of the metallic head between the guide y* employed
for placing ropes in their grooves in the pulleys N and the circular end a³ may be
utilized for placing straps or belts O on their respective pulleys; the distended

page_text: endy being utilized for operating on the pins p shown in Figs. 4 and 5 to rotate
the pulley T when desired or necessary. The pulleys N are provided with the
holes or indents to receive the circular end a³ to allow of the same being rotated
by means of the pole e³ when necessary for the purpose of placing the strap or
rope thereon.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I would have it under-
stood that I do not confine myself to the precise details or configuration of the parts
I have shown and described as the same may be varied or modified without depart-
ing from the principle of my invention, but what I claim and desire to be secured
to me by Letters Patent is:-
1. The general arrangements, constructions, and combinations of parts composing
the improvements in or relating to guide pulleys and in apparatus for operating,
regulating, and locking the same, the whole being applied and operating substan-
tially as described and as illustrated in the annexed drawings for the purposes
set forth.
2. In combination with guide pulleys for the indicated purposes the use of the
pillar or other fixing E. provided with the spur toothed rack K and angular toothed
rack L, over and on which slides the adjustable sleeve G operated by the worm
wheel I, worm H, chain pulley T provided with the holes or pins p, and the
chain T or its equivalent, the said adjustable sleeve G being locked in position
automatically by the " pawl" M, the whole being applied and operating
substantially as described and as illustrated in the drawings.
Dated the 6th day of January 1898.
EDMUND CHADWICK,
Agent.