Mechanical Appliance for Putting Belts on Pulleys.
Year: 1889

page_text: Date of Application, 26th July, 1889
Complete Specification Left, 26th Apr., 1890-Accepted, 14th June, 1890
PROVISIONAL SPECIFICATION.
Mechanical Appliance for Putting Belts on Pulleys.
I, PHILIP JOSEPH HOLLOWAY, Engineer of 7 Moss Terrace, Winnington Park
Northwich, Cheshire, do hereby declare the nature of this invention to be as
follows:-
The invention consists of a quadrant (or part of a quadrant) having the same diar.
as the edge of the pulley on which the belt is to be placed, but of a less width than
the belt itself, with a set off on the side furthest from the pulley to prevent the helt
being pushed over during manipulation. On the boss of this quadrant is cast a chain
or rope wheel of a proper size, the end of the boss being made with one thread equal
in pitch to the overhang of the belt on the quadrant. Against this works another
thread cast on the boss of a second chain or rope wheel, the whole running on a
loose collar bush keyed on the shaft. The idea is, that when the belt is off the pulley
& required to be put on by the attendant the quadrant with the belt lying on it is
pulled round by the first-named chain or rope wheel into a position ready for the belt
to be pushed on to the pulley, which is accomplished by pulling round the second
pulley in a contrary direction to the first one. This being done the belt is put on the
pulley to a distance equal to the overhang of the belt on the quadrant & from there
climbs to its proper place on the pulley.
Dated this 25th day of Inl., 1800
PHILIP JOSEPH HOLLOWAY.
COMPLETE SPECIFICATION.
Mechanical Appliance for Putting Belts on Pulleys.
1, PHILIP JOSEPH HOLLOWAY of 7 Moss Terrace, Winnington Park, Northwich
in the County of Chester, Engineer, 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 :-
This my invention relates to certain new and useful improvements in apparatus for
replacing belts upon pulleys when in motion, and the invention consists in the
combination of parts hereinafter set forth.
Figure 1 is a part sectional side elevation of my improved apparatus for replacing
belts upon pulleys showing the same in operative position. Figure 2 is an end
elevation thereof. Figure 3 shows a modification of my improved apparatus as it is
constructed for putting belts on small pulleys. Figure 4 is an end elevation thereof.
Figure 5 is a part sectional elevation of my improved apparatus showing its adaptation
for putting on belts when the pulley is near existing pedestals. Figure 6 is a side
elevation of Figure 5. Figure 7 is a side elevation of a modified form of my
apparatus for putting on belts, showing how the same may be made portable.
Figure 8 is a front elevation of this latter form of my improved apparatus. Figure 9
is a plan of the quadrant thereof.
Like letters of reference indicate corresponding parts in the several Figures.
In the accompanying drawings, the letter A represents an existing pulley, and
A' an existing shaft. My improved apparatus consists in part of a quadrant or part
of a quadrant B constructed of steel or wrought iron and having its periphery curved
to the same radius as the pulley upon which the belt is to be placed. The width of
the quadrant is less than the belt to be applied, the ratio being about as 34 inches is
to 2 inches, varying according to the width and weight of the belt. On the edge of
the quadrant furthest from the belt pulley, is a small flange B₁ to prevent the belt
from being pushed over the quadrant whilst being put on the pulley. The quadrant

page_text: is carried by wrought iron or steel arms C made in two parts and secured with right
and left handed threads. Sleeve nuts C¹ enable the length of the arms (to be
adjusted so as to enable the quadrant to put the belt on pulleys of various
diameters if desirable.
The arms Care secured into a boss D of either steel, wrought iron or any cast
metal, in which is cut a spiral groove D', having a pitch equal to the overhang of the
belt E on the quadrant. Formed integral with the boss D is a chain or rope
pulley E for raising the quadrant with the belt lying upon it. The size of this chain
or rope pulley will depend upon the diameter of the belt pulley, the width and weight
of the belt, and must be large enough to exert sufficient power to raise the
quadrant.
The belt is pushed towards the belt pulley whilst the quadrant is being raised by
another chain or rope pulley F-hereinafter called the pressure-pulley of sufficient
diameter and made in one piece with an extended boss F upon which is cut a
thread corresponding to the spiral groove D¹ in the boss D, in which it works.
In order to prevent the machine moving upon the loose bush G by which the apparatus
is carried when not in use, a groove is cut around the inside of the boss F of the
pressure pulley, and in which groove is fitted a small collar G¹.
When, as shown in Figures 3 and 4, it is desirable to reduce the diameter of the
boss of the quadrant to the minimum on account of the small diameter of the belt
pulley or for any other reason, this can be done by dispensing with the internal
groove D and thread F' as shown in Figure 1, and making the ends of the bosses of
the quadrant and the pressure pulley respectively with one thread or spiral cam H H',
equal in pitch to the overhang of the helt upon the quadrant, and adapted to abut
against each other. In this case a spring H2 of one single spiral between the collar H³
of the loose bush G and the boss D of the quadrant will be required to keep the
machine in gear:
When the belt pulley is near an ordinary pedestal bracket or hanger I-see
Figures 5 and 6-it is found convenient to secure an extended step I' to the pedestal
bracket I by a bolt 12 and which extended step is formed with a thread I³ adapted to
engage with the spiral groove formed in the boss of the quadrant as aforedescribed.
By this arrangement the pressure pulley can be dispensed with.
In order to facilitate the application of my improved apparatus to existing shafts,
it is conveniently made in two halves and bolted together as will be seen and
understood.
:-
The manipulation of the aforedescribed forms of my invention is as follows
When the belt is off the pulley and required to be put on by the attendant, the
quadrant with the belt lying upon it ready to be picked up is pulled round by its own
chain or rope pulley into a position ready for the belt to be pushed on to the belt
pulley, which is accomplished by pulling round the pressure pulley in a contrary
direction. This action causes the groove and thread or butting threads, as the case
may be, to unscrew in one half revolution of each, a total distance equal to the over-
hang of the belt on the quadrant, which distance the belt is now on the pulley and is
left to climb the remainder of its own width.
In order to prevent the quadrant being carried round with the shaft when the belt
is being tightened on the pulley, the quadrant is bevelled inwards from the edge to
the flanges as shown in the drawings.
The attendant is quite out of danger as the chains or ropes can be carried to
any point and the speed of the engine need not be slackened during the
operation.
In Figures 7, 8, and 9 of the drawings I have shown a modification of my
improved apparatus for putting on belts and it consists of the quadrant B as here-
tofore, but which in this case is constructed of a metal band bent round as shown
in Figure 9, and which is tapered in such a manner that one side of the quadrant is
wider than the other and forms a flange thereto. Rollers K formed of tubes cut to
proper length and passed over studs diametrically secured across the quadrant, form
a bearing surface for the belt. The quadrant is carried by arms K-preferably

page_text: tubular-secured at one end to plates K² which are rivetted to the quadrant as shown,
and the other ends of the arms are secured by pins to the lugs L of the sliding
box L. The sliding box L' is adapted to slide vertically upon the rod M between
the collar M' and the head M². Small perforations L'in the sliding box L' and
corresponding to perforations M³ in the rod M enables the radius described by the
quadrant to be adjusted to any length to adapt itself to various belt pulleys. The
rod M is pinned at N to the lever arm N¹ formed in two parts, each part being
provided with a series of corresponding apertures N2 by means of which with bolts
or pins the length of the lever may be adjusted. The lever N' is formed with a boss N³
which is split in halves; one half remaining integral with the lever and the other
half being hinged thereto at N and provided with a locking device N³. A spring O
bears upon the hinged portion of the boss N³ with a tendency to keep it closed. The
locking device consists of a single catch pawl pivoted at O' and provided with a lug
and eyelet 02. The lever N¹ is pinned at P to the upper end of a telescopic and
tubular lever P, in the upper end of which are mounted two small pulleys P², and
the lower end of which has a handle P³. A chain Q secured to the eyelet O* of the
locking device is passed between the pulleys P2 down the lever P¹ and is secured to a
headed pin and nut P* the pin being adapted to slide in a slot P³.
The manipulation of this form of my improved apparatus for putting on belts is as
follows:-
The apparatus when required to be used is raised to the shaft by means of the
lever P and in order to get it upon the shaft, the handle P³ together with the chain
is pulled which will lift the locking device N° and open the boss N³. When the
apparatus is in place the chain is released and the back spring O closes the boss and
the back spring R closes the locking piece Nº. The lever P¹ is then pulled down the
required distance and the quadrant B-upon which is placed the belt is raised and
being made wedge-shaped it imparts to the belt a side motion forcing the latter upon
the pulley as it rises. When the belt is replaced and it is required to remove the
apparatus it is only necessary to pull down the chain and thereby to again open the
locking piece and hinged portion of the boss, which releases the apparatus and allows
the attendant to take it away.
Having now particularly described and ascertained the nature of my said Inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:
1. An apparatus for putting belts on pulleys, consisting of the quadrant B made of
a band of metal having a flange B', arins made of two parts, the one part of each
being secured to the quadrant B, the other part secured into the boss D and both
parts of each made adjustable and secured together by the sleeve nut C¹, the chain
wheel E formed integral with the boss D having an internal spiral groove D', the
pressure pulley F formed integral with the external boss F¹ formed with a thread F'
adapted to engage with the groove D', and a groove in the boss F in which is fitted
the ring G adapted to keep the pressure pulley in place and the loose collar G, all
arranged in combination, substantially as and for the purpose herein before set forth
with reference to Figures 1 and 2 of the drawings hereunto annexed.
2. An apparatus for putting belts on pulleys, consisting of the quadrant B, arms C,
sleeve nuts C, chain pulley E formed integral with a boss made with a spiral cam H,
pressure pulley F formed integral with a boss F¹ made with a spiral cam H adapted
to engage with the spiral cam H, the spring H2 in compression between the collar H³
and the boss D and the loose collar G carrying the mechanism all arranged in com-
bination, substantially as and for the purpose herein before set forth, with reference to
Figures 3 and 4 of the drawings hereunto annexed.
3. An apparatus for putting belts on pulleys, consisting of the quadrant B arms C,
sleeve nuts C, chain pulley E' formed integral with a boss D having a spiral
groove D', and extended step I' secured to the pedestal I, and formed with a thread I³
adapted to engage with the spiral groove D'all arranged in combination, substantially

page_text: as and for the purpose hereinbefore set forth, with reference to Figs. 5 & 6 of the
drawings hereunto annexed.
4. An apparatus for putting belts upon pulleys, consisting of the quadrant B con-
structed of a metal band tapered in width to form a flange thereto, and of rollers K
formed of tubes passed over studs diametrically secured in the sides of the quadrant,
arms K secured at one end to plates K2 riveted to the quadrant and at the other
end pinned to the lugs L, the sliding box L' adjustable upon the rod M and having
perforations corresponding to perforations in the rod M, the rod M pinned to the
lever arm N, the lever arm N formed in two adjustable parts and having a boss N³
made in halves, the one half hinged to the other half, a locking device N and
a spring O adapted to operate the one half of the boss, the telescopic lever P¹ to
which is pinned the lever N¹, the pulleys P2 mounted in the upper end of the
lever P¹, a handle P³ in the lower end of the lever P¹, and a chain Q connected
to the locking device N passed between the pulleys P2 and attached to a pin
working in the slot Ps, all arranged in combination, substantially as and for the
purposes herein before set forth, with reference to Figures 7, 8, and 9 of the drawings
hereunto annexed.
Dated this 26th day of Anril
PHILIP JOSEPH HOLLOWAY,
By his Agents,
Horn & Son.