IMPROVEMENTS IN THE MANUFACTURE OF PULLEYS FOR SUSPENDING WINDOW FRAMES AND FOR OTHER LIKE PURPOSES
Year: 1868

page_text: LETTERS PATENT to Frederick Ryland, of West Bromwich, in the
County of Stafford, Mechanical Engineer, for the Invention of
"IMPROVEMENTS IN THE MANUFACTURE OF PULLEYS FOR SUSPENDING WINDOW
FRAMES AND FOR OTHER LIKE PURPOSES."
Sealed the 7th August 1868, and dated the 12th March 1868.
PROVISIONAL SPECIFICATION left by the said Frederick Ryland at
the Office of the Commissioners of Patents, with his Petition, on
the 12th March 1868.
I, FREDERICK RYLAND, of West Bromwich, in the County of Stafford,
Mechanical Engineer, do hereby declare the nature of the said Inven-
tion for "IMPROVEMENTS IN THE MANUFACTURE OF PULLEYS FOR SUSPENDING
WINDOW FRAMES AND FOR OTHER LIKE PURPOSES," to be as follows:-
My Invention consists of the improvements herein-after described in
the manufacture of the various kinds of pulleys for suspending window
frames and for other like purposes.
I will describe my Invention as applied to pulleys of the kind called
axle pulleys.
In the ordinary method of manufacturing axle pulleys the ends of the
axle of the bowl or wheel which work in the bearings in the side plates
are turned of less diameter than the middle part of the said axle, the

page_text: shoulders formed serving to keep the bowl or wheel central in the box
or frame and in the hole in the mortice plate. In manufacturing the
wheels and axles of the said pulleys there is considerable difficulty in
accurately turning the shoulders described at the required distances
from the wheel, and my Invention has for its object to remedy this
difficulty.
In manufacturing the said pulleys according to my Invention I turn
the shoulders on the axle in the same planes as the sides of the bowl or
wheel, and on the inner surfaces of the side plates of the box or frame
of the pulley, and around the holes or bearings in which the ends of
the axle work I make bushes or annular projections, against which the
shoulders on the axle of the bowl or wheel bear in the finished pulley.
The said bushes or annular projections project from the inner surfaces
of the side plates sufficiently to preserve the central position of the bowl
or wheel of the pulley.
By my Invention the said axle pulleys can be made more readily
and also more exact and uniform than by the ordinary method of
manufacture.
Although my Invention is especially applicable to axle pulleys, yet
my said Invention is also applicable to all kinds of pulleys for sus-
pending window frames and for other like purposes.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Frederick Ryland in the Great Seal Patent Office
on the 5th September 1868.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, FREDERICK
RYLAND, of West Bromwich, in the County of Stafford, Mechanical
Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria by Her
Letters Patent, bearing date the Twelfth day of March, in the
year of our Lord One thousand eight hundred and sixty-eight, in the
thirty-first year of Her reign, did for Herself, Her heirs and successors,
give and grant unto me, the said Frederick Ryland, Her special licence
that I, the said Frederick Ryland, my executors, administrators, and
assigns, or such others as I, the said Frederick Ryland, my executors,
administrators, and assigns, should at any time agree with, and no

page_text: others, from time to time and at all times thereafter during the term
therein expressed, should and lawfully might make use, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the
Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN
THE MANUFACTURE OF PULLEYS FOR SUSPENDING WINDOW FRAMES AND FOR OTHER
LIKE PURPOSES," upon the condition (amongst others) that I, the said
Frederick Ryland, my executors or administrators, by an instrument
in writing under my, or their, or one of their hands and seals,
should particularly describe and ascertain the nature of the said
Invention, and in what manner the same was to be performed, and
cause the same to be filed in the Great Seal Patent Office within six
calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that I, the said Frederick Ryland, do hereby
declare the nature of the said Invention, and in what manner the
same is to be performed, to be particularly described and ascertained
in and by the following statement thereof, that is to say :-
My Invention consists of the improvements herein-after described in
the manufacture of the various kinds of pulleys for suspending window
frames and other like purposes.
I will describe my Invention as applied to pulleys of the kind called
axle pulleys.
In the ordinary method of manufacturing axle pulleys the ends of the
axle of the bowl or wheel which work in the bearings in the side plates
are turned of less diameter than the middle part of the said axle, the
shoulders formed serving to keep the bowl or wheel central in the box
or frame, and in the hole in the mortice plate. In manufacturing the
wheels and axles of the said pulleys there is considerable difficulty in
accurately turning the shoulders described at the required distances
from the wheel, and my Invention has for its object to remedy this
difficulty.
In manufacturing the said pulleys according to my Invention I turn
the shoulders on the axle in the same planes as the sides of the bowl or
wheel, and on the inner surfaces of the side plates of the box or frame
of the pulley and around the holes or bearings in which the ends of
the axle work I make bushes or annular projections, against which the
shoulders on the axle of the bowl or wheel bear in the finished pulley.
The said bushes or annular projections project from the inner surfaces

page_text: of the side plates sufficiently to preserve the central position of the bowl
or wheel of the pulley.
By my Invention the said axle pulleys can be made more readily,
and also more exact and uniform than by the ordinary method of
manufacture.
Although my Invention is especially applicable to axle pulleys, yet
my said Invention is also applicable to all kinds of pulleys for sus-
pending window frames and other like purposes.
Having explained the nature of my Invention I will proceed to
describe, with reference to the accompanying Drawing, the manner
in which the same is to be performed.
Figure 1 represents in side elevation, and Figure 2 in front elevation
an axle pulley made according to my Invention, and Figure 3 represents
the same partly in vertical section; Figure 4 represents in elevation
and section one of the side plates of the frame of the said pulley.
a, a, are the side plates of the frame or box of the pulley, and 6 is the
mortice plate through the opening in which the bowl or wheel c works.
The axle d of the bowl or wheel c works in holes or bearings in the
side plates a, a, in the manner represented in the Drawing. The
shoulders d', d³, on the axle d are turned or formed in the same planes
as the sides of the bowl or wheel c. On the inner surfaces of the side
plates a, a, of the frame of the pulley, and around the holes or bearings in
the said side plates are bushes or annular projections e, e, against which
the shoulders d' of the axle of the bowl or wheel c bear when in the box
or frame a, a, b. By an examination of Figure 3 it will be seen that
the bushes or annular projections e, e, preserve the bowl or wheel c
centrally in the frame or box.
Figure 5 represents in cross section and partly in elevation and partly
in section a frame or box pulley made according to my Invention. f, g,
is the box or frame of the pulley made in one piece; h is the bowl or
wheel, and i is the fixed pin or axle upon which the wheel h turns loosely.
On the inner sides of the box or frame f, and around the holes into
which the fixed pin or axle i is passed bushes or annular projections e, e,
are made, against which the bosses or central parts h², h², of the bowl h
bear, the said bosses being turned or formed in the same planes as the
sides of the said bowl or wheel. By means of the said bushes or annular
projections e, e, the bowl or wheel is preserved centrally in the box
or frame.

page_text: Figure 6 represents in section a side pulley, and Figure 7 represents
sections taken at right angles to one another of a screw pulley made
according to my Invention. In the said Figures 6 and 7 the parts are
marked with the same letters of reference as corresponding parts in
Figure 5.
Although I have represented the principal pulleys to which my
Invention is applicable, yet I do not limit myself thereto, as my
Invention may be applied to all kinds of pulleys used for suspending
window frames and for other like purposes, whatever the construction
and shape of the frames or boxes of the said pulleys may be, or the
position of the bowls or wheels in the said frames or boxes.
Having now described the nature of my Invention, and the manner
in which the same is to be performed, I wish it to be understood that
I do not limit myself to the precise details herein described and illus-
trated in the Drawing, as the same may be varied without departing
from the nature of my Invention; but I claim as my Invention the
improvements in the manufacture of pulleys for suspending window
frames and for other like purposes, herein-before described and illustrated
in the accompanying Drawing, that is to say, making on the inner sides
of the frames or boxes of the said pulleys bushes or annular projections,
and forming the shoulders of the axles of the bowls or wheels or the
central bosses of the bowls or wheels of the said pulleys in the same
planes as the sides of the bowls or wheels for the purpose and
substantially in the manner described and illustrated.
In witness whereof, I, the said Frederick Ryland, have hereunto
set my hand and seal, this Fourth day of September, in the
year of our Lord One thousand eight hundred and sixty-eight.
Witness,
JAMES TUTIN,
7, Cannon Street,
Birmingham.
FRED. RYLAND. (L.S.)