Improvement in Friction Clutches.
Year: 1892

page_text: Date of Application, 28th Nov., 1892
Complete Specification Left, 28th Aug., 1893-Accepted, 28th Nov., 1893
PROVISIONAL SPECIFICATION.
Improvement in Friction Clutches.
THOMAS GARFORTH RHODES Albert Terrace Kirkstall Leeds Mechanical
Draughtsman, CHristian Körte Victoria Road Leeds in business as Mechanical
Engineer, ELIJAH YEADON 21 Harrison Avenue Stanningley near Leeds Manager,
do hereby declare the nature of this invention to be as follows:-
This invention has for its object the arrangement of an improved cone clutch
giving greater facilities for starting and stopping of the clutch and doing away with
the objectionable pressure in the length axis of the shaft which takes place in the
common cone clutch and also to make the clutch less liable to wear in starting and
stopping. The clutch consists of an outer shell constructed as usual in a cone
clutch and a friction cone sliding on the shaft. This cone is constructed in form of
a ring and split on one side or in form of an elastic disk so as to enable it to be
slightly compressed or expanded. As before said the ring is connected with the
shaft and provided with two pockets containing springs and a slot to receive a taper
wedge for expanding the ring or elastic disk the cone is cast on to a boss on which
the wedge carrying sleeve slides and which engages with the before mentioned
springs on the friction cone if the sleeve slides forwards on the boss. To act the.
clutch the wedge carrying sleeve is moved forwards on the boss engages with the
springs on cone and moves the cone with a slight pressure into the its shell a further
movement of sleeve inserts the taper wedge into slot in cone expands the cone and
fixes it into the shell provision is made in the shell for taking up the wear.
Dated this 26th day of November 1892.
THOMAS GARFORTH RHODES.
CHRISTIAN KÖRTE.
ELIJAH YEADON.
COMPLETE SPECIFICATION.
Improvement in Friction Clutches.
We THOMAS GARFORTH RHODES Albert Terrace, Kirkstall, Leeds Mechanical
Draughtsman CHRISTIAN KÖRTE 36 Victoria Road Leeds Mechanical Engineer,
ELIJAH YEADON 21 Harrison Avenue Stanningley Leeds Manager 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 invention relates to improvement in friction clutches the box is made
slightly conical, free to slide longitudinally, on a feather is the cone, made slightly
conical & split, so that upon entering the box it may yield, also sliding on the boss
of the cone is another boss fitted with a taper wedge, such wedge engaging with a
corresponding taper hole in the split cone. By means of a clam & lever the cone
& boss are first pushed longitudinally on the shaft, then the taper split cone engages
with the taper box, & slightly yields, a further movement forces the taper wedge
into the corresponding hole in the split cone, & effects the tightening of the split
cone. A spring button prevents the boss from acting before the split cone, is pushed
home.
Referring to the drawing, Fig. 1 represents a sectional elevation of the clutch,
Fig. 2 a front elevation of the same. A is the friction box, keyed to the shaft,
on to the boss of a pulley, B is the split cone, free to slide on a feather longi-
tudinally. C is the boss, fitted with the taper wedge C', which engages when
Di Q7

page_text: pressed home in the hole D of the split cone B, this boss is fitted with a button E,
spring F & set screw G, to retain the boss until the cone is pressed home & slightly
yields, when further movement causes the button to yield, & the wedge is forced
home, the split cone B, boss 'C, wedge C¹, button arrangement E, F, G, are capable
on the return motion of the lever, of being thrown quite clear of the friction
box A. Collars are provided to prevent too much movement in the return stroke
of the lever.
Having now particularly described & ascertained the nature of our invention, &
the manner the same is to be performed we declare what we claim is
1. The split cone B provided with its conical hole D.
2. The sliding boss C
button E, spring F, &
substantially as arranged
76th dov Of Aust
provided with the taper wedge C¹, & with the spring
tension screw G, or their mechanical equivalents, all
set forth.
1202
hth day of
Avust 1202
O
THOMAS GARFORTH RHODES;
Albert Terrace, Kirkstall, Leeds, Mechanical Draughtsman.
CHRISTIAN KÖRTE,
36, Victoria Road, Leeds, Mechanical Engineer.
ELIJAH YEADON,
21, Harrison Avenue, Stanningley, Leeds, Manager.