Apparatus for Communicating Motion to Revolving Shafts and for Disconnecting Motors therefrom.
Year: 1886

page_text: Apparatus for Communicating Motion to Revolving Shafts,
and for Disconnecting Motors therefrom.
WILLIAM WORBY BEN
hereby declare the EAUMONT 229
nature of this invention
For driving i
the mediumacnery such, for instance,
motors m of shing and by means of
stop is necessarto arrange for putt
ping the shafting for this purpose or
ngines.
wood Road Herne Hill SE Engineer do
to be as follows:-
as electric lighting machinery through
duplicate and alternative engines or
one or other engine into work without
for disconnecting the other engine or
ng the engine or motor-driven pulleys or
on which they of themselves are loose by
sired to stop is automatinally relieved of its
aments so that when the one engine is set
ble to other rotative purposes than that given in
My invention effects is by connecti
wheels to the shaftingey drive and
means of frictional or shet attach
to work, the engine w it is de
load. The combination i
illustration.
plicab

page_text: and for Disconnecting Motors une
I WILLIAM WORBY BEAUMONT 229 Norwood Road Herne Hill 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:-
For driving machinery such for instance as electric lighting machinery through
the medium of shafting and by means of one or other of duplicate and alternative
or more than two alternative engines or notous, it is necessary to arrange for putting
one or other engine or motor into work without stopping the shafting or materially
nge from one motor to the
altering its velocity of rotation while or wher
other is made.
My invention effects this by connect
the shafting they drive, & on which
frictional or ratchet attachments so tha
which it is desired to stop is automatica
This is made clear by reference to the
In these drawings the same lotters
perform similar duties.
3'
the cha
riven pulleys to
hy means of
ing the engine or moto
they of themselves are loose, the engine
when one engine is 8 to work
ly relieved of its wo
drawings hereunto tached.
Apply to similar
rts or to parts white
general prixle of the invention as
other of engines. Figs. 1 to 8
8 by means of which the
Attacho
sha
Fig. 1A is a plan diagram showing the
applied to a piece of shiting driven by one o
show alternative forms of frictional or ratchet
notor-driven pulleys communicate motion to the
In Diagram Fig. 1A S is a piece of shafting upon hich are fixed a number of;
pulleys for driving any machines. There are also upon this shaft the two motor-
driven pulleys, commonly known as driving pulleys, A, which receive their
motion from the fly, wheels of the two engines P and P¹. The most usual method
of driving by one or other engine is to place one fast & one loose pulley opposite
each engine and to have wide flywheels or driving wheels P, P¹ as indicated on the
diagram Fig. 1A by the dotted lines a and a¹ and by p and p', and when one engine,
say P, is driving the shaft and it is desired to stop it and put the other engine P¹
into work, the latter is run up to the speed of the first and then both belts Q & Q
simultaneously or as nearly so as is practicable shifted to q and q' respectively.
This is effected with some difficulty & moreover necessitates four pulleys A, A',
a and a' as well as double width wheels P & P¹. Sometines friction clutches have
been used for the purpose, one being put into gear & another put out of gear with
both the engine which is to be worked and the engine which is to be stopped:
running at the same speed; but these are also objected to as unsatisfactory.
By my invention only one driving pulley is used opposite each engine and the
wheel P or P is of single width only, both the driving pulleys A, A¹ being loose
on the shaft S and connected thereto by attachments hereafter to be described and
as shown in Figs. 1 to 7. By these means if the shaft S be driven by the motor
wheel P and by the driving pulley A and it is desired to stop P & work P¹ it is

page_text: only necessary to start P¹ and as soon as it drives A¹ at the speed the shaft is
running the engine with wheel P¹ will begin to take up the work, and then by
gradually stopping the engine with the wheel P the whole of the work will be put
on P¹ without materially affecting the velocity of rotation of the shaft S.
There are various well known means of connecting driving pulleys to rotating
shafts or spindles so that they may communicate motion to the shaft or spindle
without being themselves fixed thereon. Some of these with modifications are
shown in Figs. 1 to 8.
Fig. 1 is an elevation of a pulley A loose upon a shaft S but communicating
motion thereto by means of the friction pawls E and the wheels or discs B which
are fixed on the shaft.
Fig. 2 shows a similar pulley partly in section and with alternative forms of
frictional pawls E & E¹, and wheels or discs B & B¹.
Fig. 3 is an edge elevation of a similar pulley shown on the same shaft. To the
pulley A is either cast as at C, or attached as at C¹ when existing pulleys have to
be utilised, a boss for carrying a fixed pin or spindle D to the ends of which aro
pted the pawls E or E¹ which drive the disc B in the direction shown by the
pon Fig. 1. At B the discs are shown as having three grooves, and the pawls E
arrow and thereto. At B' the disc is shown as having one groove only and the
Corresporresponds thereto.
pawl
The boss
is formed on the two castings which embrace two spokes of the
pulley A as shown in the lower parts of Figs 1 and 2. To cause the pawls E
to press upon the dista bevil nosed catch bolt G with a square tail is fitted in
a hollow boss cast upon the upper part of the pawl. This presses into one of the
bevil edged notches H or H' in t piece F, which is fixed upon the end of the pin D,
by pressure exerted by the spiral sing N as shown particularly in Fig. 8 which is
a section on the line x-x Fig. 1 except that it shows the bolt G in the notch in
which it holds the pawl out of gear, whilen Fig. 1. the pawl E is in gear and G there-
fore in notch H of Fig. 8. To put the pai E into the position in which it will be
held out of gear it is only necessary to pull it rcibly and thus cause the bolt G to
rise up the inclined edge of the notch H over he ridge between it and H¹ and
allow it to push into the notch H¹, the bolt G actin much as the bevil edged bolt
of a door lock when the door is pushed to close it.
A
The disc B is free to turn in the direction of the arroi Fig. 1, without turning
the pulley A whether the pawls be in or out of gear, but he pulloy cannot turn
in that direction without turning B & S when the pawls areil.gr
The hole for the bolt G and the spiral spring N may be male in a boss at the
end of the pawl E or it may be made in the pawl as shown at E¹. If it be desired
to run the shafting in either direction the pawl may have the form shown at c
Fig. 1. and it may then be turned over so as to grip the disc in the direction
opposito that shown by the arrow, the part e shown by dotted lines coming into
gear instead of the part E.
In puce of the friction gripping attachments shown in Figs. 1, 2, 3. and 8, the
fction belt shown at Fig. 5 may be employed in the way well known, or the
isc B Fig. 4 may have a rim within which the boss A enters, the boss being
concentric in part of its circumference and excentric in two parts as from R to R¹.
Within the annular space between boss & disc rim are placed friction wedges E
which when in the position shown in the upper part of Fig. 4, to which it is pushed
by the spring N, causes the disc to drive the pulley. When the shaft is running
but is not driven by the disc B, the wedge tends to take the position shown in the
lower part of Fig. 4 where the wedge and spring are shown in section.
As
In place of friction attachments, ratchet gear as shown at E and at E¹ Figs. 6 & 7
may be employed. In Fig. 7 the notched piece F on a square part of the pin D
will under the influence of the spring N hold the pawl into or out of gear.
shown is separated from E for clearness. At E Fig. 6 is a ratchet pawl which
may be employed to drive in either direction, while E shows a pawl for driving in
one direction only.

page_text: Having now described the principle and the means of carrying my invention
into practical effect, I declare that I do not claim as my inventions the details by
which it is carried into effect but what I do claim as my invention is
The employment on shafting or spindles when driven by two or more alternative
motors or sources of rotative motion of driving, or motor-driven, pulleys loose upon
but connected to the shafting they drive through the medium of frictional or ratchet
attachments so that when one motor is set to work another motor may be relieved
of its work automatically without stopping or materially altering the rotative
velocity of the shafting or shifting belts from fast to loose pulleys substantially
in the manner herein described and shown.