Improvement in Couplings or Chucks for Connecting and Holding Shafting, Spindles, and the like.
Year: 1898

page_text: Date of Application, 2nd Aug., 1898
Complete Specification Left, 28th Mar., 1899-Accepted, 27th May, 1899
PROVISIONAL SPECIFICATION.
Improvement in Couplings or Chucks for Connecting and Holding
Shafting, Spindles, and the like.
REUBEN JOHN LINES, Corelli House, Marriott Street, Northampton,
Mechanical Engineer, do hereby declare the nature of this invention to be as
follows:
-
My invention consists of an improvement in my Patent 4566-79 and is as
follows. Instead of cutting on each end of the coupling a screw or thread and
using a collar or nut with a corresponding thread to screw on each end and
so tighten the coupling to the shafting, I make each end of the coupling slightly
conical in form, and use a collar to fit thereon of a corresponding form internally,
viz., of such a taper that the friction of the parts of the coupling & collar in
contact with each other shall be such as to hold the coupling and shafting securely
together when connected. What I claim as novel is the making of the plain
collars, without screws or bolts of any kind, in such a form, as before described
so that they shall effectually fasten the coupling, when connected, to one or more
pieces of shafting &c., by the friction of the collars upon the aforesaid coupling.
Dated this 1st day of August 1898.
REUBEN JOHN
LINES.
Improvement in Couplings or Chucks for Connecting and Holding
Shafting, Spindles, and the like,
REUBEN JOHN LINES, Corelli House, Marriott Street, Northampton,
in the County of Northampton, Mechanical 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 coupling or chuck may be made of cast iron, steel, wrought iron or other
suitable material, and is a sleeve of metal having an enlargement (A) in or near
the centre (longitudinally) (Figure 1). This enlargement (A) springing from the
longitudinal portion of the sleeve is contracted sideways and made hollow, so
that either end of the sleeve or coupling may be connected or dis-connected to
the shafting or spindles &c. without interfering with the other end.
The parts (a) (Figure 1) of this sleeve or coupling on both sides of the enlarge-
ment (A) are turned at each end slightly conical or taper in form. On each of
these ends is fitted a collar (b) (Figure 1) bored to a suitably conical or taper
form to fit the before-mentioned ends of the sleeve or coupling. The taper of

page_text: the collars and of the ends of the sleeve or
coupling is such that when the collar
is driven or forced on to the sleeve or coupling it will remain there by the friction
of its parts, without the help of bolts or screws of any kind.
To obtain a proper grip of the shafting or spindles that I wish to connect by the
aforesaid sleeve or coupling, I make two (preferably) or more longitudinal slits (c)
on each side of the enlargement, at least one of these slits on each side of the
before mentioned enlargement should reach from the end of sleeve or coupling
to near the centre of said enlargement (d) Fig. 2 and the other or others should
(preferably) reach from the end of the sleeve or coupling to the bottom of the
enlargement, (e) Fig. 2 but in no case is the slit of one side the enlargement con-
nected with the slit on the other side of the enlargement.
The before mentioned collars are made with their edges (f) (preferably) at an
angle of 45° so that they can be more easily driven on or off the sleeve or
coupling.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is:-
(Claim 1) The making of the collars before described of such a form that in
combination with the before mentioned sleeve or coupling they shall effectually
fasten the same to shafting, spindles, and the like without the aid of bolts or screws
of any kind.
(2) The combination of the said collars with a sleeve or coupling having a
hollow central enlargement as shown carrying suitable slits to enable the sleeve
or coupling to expand or contract the diameter of the hole at either end inde-
pendently of the other end.
(3) The combination whereby a sleeve or coupling being one piece of metal
can have either end connected or disconnected to shafting, spindles, or the like,
by means of the aforesaid collars, (without bolt or screw of any kind), without
affecting the other end.
Dated this 97th low of Moral 1900