Improvements in the Method of and Means employed for Casting Star Wheels on Spindles.
Year: 1897

page_text: Improvements in the Method of and Means employed for Casting
Star Wheels on Spindles.
I, ISAIAH HALL, of 122, New Bank Road, Blackburn, in the County of Lancaster,
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in the method of and means employed
for casting star wheels on spindles employed in linotype machines, such star wheels
being used for placing the matrices in the assembly box. As heretofore con-
structed it has been necessary to fix the star wheel onto the spindle by means of
a key or midfeather, and the object of the present invention is to provide means
whereby the star wheel may be made of metal and more durable, and when worn or
broken can be removed and a new one fixed in position without loss of time, as
at the same time the wheel is cast it is fixed onto the spindle
According to this invention I employ a metal moulding box in each half of
which is a mould of one half of the star wheel and a hole or recess for the spindle.
The spindle has a saw gate or slot in its end and said spindle is placed in the box
its end resting against the inner edge of the mould. The halves of the moulds are
now placed together as ordinary and the molten metal run in in the usual manner,
and when the star wheel is cast it is fixed onto the spindle by the metal running
into the slot or saw gate.
Star Wheels on Spindles.
I, ISAIAH HALL, of 122, New Bank Road, Blackburn, in the County of Lancaster,
but at present of Regentesselaan, 348, The Hague, Holland, Engineer, do hereby
declare the nature of this invention and in what manner the same is to be per-
5 Price 8d1

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formed, to be particularly described and ascertained in and by the following
statement:-
The present invention relates to improvements in the method of and means
employed for casting star wheels on spindles, such as are employed in the well
known Mergenthaler Linotype Machine, to up-end the matrices and push them
one by one into the assembly box. Each star wheel is held on and to the spindle
with its side standing flush with the spindle end, by a mid feather fast to the
spindle and engaging in slots in the body of the wheel.
The object of the said invention is to provide means whereby the star wheel
may be mounted on and held to the spindle in working position and condition, by
the act of casting it.
Referring to the accompanying figures which are to be taken as part of this
specification and read therewith,
Figure 1 is a front elevation of a wheel mounted on and held to its spindle
according to the present invention:
Figure 2 is a plan corresponding therewith:
Figure 3 is a vertical section of mould box with the spindle and newly cast
wheel on it, therein; and
Figure 4 is a vertical section of one half of the mould box with the spindle and
newly cast wheel on it, therein.
Referring to Figures 1 to 3, a is the star wheel of any suitable fusible material.
b is the spindle. c is the mould box; c¹, its cover; and c³, c², wing nuts for hold-
The interior of it has
The cover c¹ has a central
ing it down upon the box c; while 3 is the pouring gate.
The mould box c is of a suitable metal, e.g., cast iron.
the same shape as the exterior of the star wheel a.
hole large enough to pass the spindle b. There is a groove across the front end
of the spindle of a size and for a purpose explained further on.
To cast a star wheel a upon the spindle b according to the present invention, the
spindle is set with its front end upon the bottom of the box c, as shewn in
Figure 3. For the reason that it is convenient to make that portion of the spindle
which the wheel surrounds thicker than the remainder of its length, the spindle
must be placed in position in the box c before the box cover c¹ is fixed in position.
The latter is next passed over the spindle and screwed down upon the box.
Whether the spindle is of the same diameter throughout or not, the central hole
in the box cover c¹ serves to guide as much of the spindle 6 as stands within the
box e, into the proper position in the latter, and to hold it there. The molten
material for the wheel is then poured through the gate. It will surround the
spindle and also fill the groove b¹ so forming the diametrical web a¹ which holds
the wheel a in working position on the spindle b and keeps it there. The width
and depth of the groove b¹ are proportioned to admit material sufficient to make a
web a strong enough to resist the strain which the work that the wheel has to
do, will put upon that web. The groove itself may be undercut if desired. As
soon as the wheel has set hard, the cover e¹ is taken off the box c, and the wheel
drawn by the spindle b.
The details of the mould may be modified so long as there is proper provision
for supporting the spindle b and drawing the newly cast wheel a. Figure 4 shews
a modification according to which, the mould box is in two halves which are
to be held together by a dowel pin 4 and a screw passed through one half into
a screw threaded hole c5 in the other.
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:
1. The herein before described method of casting a star wheel upon its spindle

page_text: 2. The combination of star wheel and diametrical web, as and for the purpose
set forth.
3. The herein before described combination of spindle; star wheel; diametrical
groove in the end of the spindle; and web incorporate with the said wheel and
engaging therein.
CR מענ ז משטחשפם TAT
CHAS. S. WOODROFFE,
188, Fleet Street, E.C., Agent for the Applicant.
CHAS. S. WOODROFFE,
188, Fleet Street, E.C., Agent for the Applicant.