Improvements in or connected with Guards or Protectors for Drums or Pulleys.
Year: 1895

page_text: PROVISIONAL SPECIFICATION.
Improvements in or connected with Guards or Protectors for
Drums or Pulleys.
I JOHN WILLIAM PAGET of 132 Rockingham Street, in the City of Sheffield
Engineer do hereby declare the nature of this invention to be as follows :-
:-
In my improvement I make the guard of semicircular shape and required
thickness, of suitable material and design.
In adapting my invention to overhead shafting and the drums or pulleys thereon,
I cause the disc or semidisc to be placed alongside the drum or pulley just clear of
the edges of the same, and attach the same in position to a suitable frame or
bracket. The periphery of the said disc or semi-disc forms an extended width
of the drum or pulley, but of slightly smaller diametre, on which (when required)
the belt is thrown and can remain stationary. A slight side pressure on the edge
of the belt in the direction required replaces the same on the revolving pulley.
When applying my improved guard to pulleys or drums in a grinding wheel or
hull, the guard may be placed any suitable distance within the drum or pulley rim
or flange.
Dated this 29th day of August 1895.
JOHN WILLIAM PAGET.
COMPLETE SPECIFICATION.
Improvements in or connected with Guards or Protectors for
Drums or Pulleys.
I, JOHN WILLIAM PAGET, of 132 Rockingham Street, Sheffield in the County
of York, 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:―
The aim and object of my improvement being to protect the workman or operator
from injury when manipulating his driving belt or band, and at the same time
expidite the removal or putting on of the said belt or band on the drum or pulley,
1 attain as follows; In protecting drums or pulleys revolving on overhead shafting
I form the guard of semicircular shape and suitable thickness and material,
preferably wood; this semidisc is of slightly less diametre than the periphery of
the pulley or drum to which it is applied, and is placed in position alongside the
said drum or pulley, being supported by and attached to approved carriers or
brackets.
When the workman desires to dispense, if only temporary, with the use of his
belt or band, a slight pressure of the hand on the edge of the belt, in the direction
of the guard is found sufficient to give the result required, the belt passing off the
revolving drum on to the periphery of the guard or protector and remaining
stationary in that position until it is required for further use, when it can be
replaced on the revolving pulley by means of a staff of suitable length.

page_text: This cannot be done at present without the workman climbing up and replacing
the belt by hand (or by the application of a loose pulley with its attendant gear,
which is not always possible,) owing to the said belt dropping on to the shaft when
passed off the drum.
In applying my invention to guards or protectors of drums or pulleys used in a
grinding wheel or hull, I cause the semidisc to be fixed or placed inside the rim or
flange of said drum, the outer side of protector being about level with the edge of
said rim, but in this adaptation, I form, on the outer side of semidisc, at right
angles to, and at the base of the same, projecting parts or portions which constitute
what is known as the "Scotchman," on which the belt falls and rests when removed
from the revolving pulley, and not in use.
When required for work, the revolving drum may be run slowly, and the belt or
band replaced by hand, the semidisc preventing any mishap to the operators hands.
By comparing the foregoing description with the accompanying sheet of drawings,
in which same letters of reference indicate similar parts or details in the various
views or figures shewn, it will be seen that Figures 1, 2 and 3 illustrate an elevation
or side view, end view and plan respectively, of my improved protector or guard
applied to a pulley or drum revolving on overhead shafting.
A is the drum or pulley having the guard B placed alongside, which is shewn
supported or attached to the roof or ceiling by carriers C, the belt when working,
being indicated by the letter D, and by dotted lines D', when at rest.
Figures 4, 5, and 6 shew similar views to the foregoing, shewing the guard or
protector applied to drums or pulleys in a grinding wheel or hull, having the
addition of that portion E, called the "Scotchman" before described.
It is ascertained by experience that my improved guard reduces the draught
caused by the revolving drum to a minimum, which is found a great con-
sideration..
I do not bind or confine myself to the configuration of parts as shewn, or to the
material used in making the protector, but the foregoing description together with
the drawings will fully explain the principle of my invention.
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
The application and use of guards or protectors for revolving pulleys or drums
constructed substantially as and for the purpose or purposes herein described and
illustrated on accompanying sheet of drawings.
Dated this 19th day of November 1895.
JOHN W. PAGET.