Year: 1886

page_text: The following clerical error in the original Specification having heen amended
by the Patentees with the consent of the Comptroller, the printed Specification will
now read as shown below:-

page_text: We, JULEORS CAYARD, of the City, County and State of New York, Merchant,
and THOMAS JOHNSON of Paterson in the County of Passaic and State of New
Jersey United States of America, machineist, do declare the nature of our invention
for IMPROVEMENT IN COLLARS and in what manner the same is to be performed to
be particularly described and ascertained in and by the following statement:-
Pre-existing collars of the class shown are secured in their several positions by
means of set screws or keys both of which are objectionable as they endanger life
and limb of persons who are in attendance where they are in use, as the revolving
set screw or key by which the collar is secured to the shaft or mandrel catches the
sleeve or other part of the garment when in contact therewith drawing the limb in
the machine or around the shaft etc. The object of our invention is to provide a
collar of new construction wherein the collar is secured in the several positions
where used without set screw, key, or other protuberence, by which life and limb
would be endangered. We attain these objects by the construction shown which
will be hereinafter explained and pointed out in the claims. Fig. 1 of the
drawing is an end view of our invention. Fig. 2 is a section of the same. Fig. 3
shows our invention in elevation, and Fig. 4 shows the same in position on the
shaft etc. A represents a collar of new construction having a rim a, in which rim
is arranged a tapering orifice a¹ to acomodate a conic slitted sleeve or grip B that
is arranged in the said tapering orifice a', of the rim a, and which conforms thereto.
The sleeve or grip B is provided with an orifice C to adapt the grip or sleeve B to
fit the shaft or mandrel D while the slit F is left sufficiently open to insure the
action of the grip on the shaft or mandrel when secureing the collar thereto.
The sleeve or grip B is made to project outside of the rim a, at each end of the
same to prevent the contact of pulleys etc with the rim preventing thus the collar
from being loosened on. the shaft or mandrel.
In practice the collar A is placed in position on the shaft D with the largest end
of the sleeve or grip inward as shown in fig. 4, after which a hammer is applied
lightly at b which action forces the rim a inward on and over the sleeve or grip B,
which owing to its conic form is caused by compression from the rim a to grip the
shaft D and thus secure the collar to the shaft. The projecting end of the sleeve
when engaged by the pulley E tends to be more firmly secured to the shaft by such
action of the pulley on the largest end of the grip B. The collar A may be removed
D

page_text: from its fixed position on the shaft when desired by reversing the action of the
hammer applying the same on the rim a at 6 which action forces the rim a
outward over the sleeve or grip to the small end of the same which loosens the
collar on the shaft.
Our invention may be made of any suitable metal as iron steel etc preferbly of
steel on account of its hard and elastic qualities and may be made any size required
for the several positions where collars are used. It will be seen that our invention
presents no set screw, key or other protuberence to endanger the lives and limbs of
persons employed where collars are used.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is
1. The rim a, having a tapering orifice a¹ whereby the rim is adapted to slide
over the sleeve or grip B and cause the grip to grip the shaft D substantially as
described.
2. The conic slitted sleeve or grip B adapted to fit on the shaft D and in the
rim a to be compressed by said rim whereby the collar is secured to the shaft or
mandrel substantially as described.
3. The collar A composed of a rim a, and a sleeve or grip B and adapted to be
secured in position on the shaft or mandrel D without set screw, key or other
protuberence as described and shown.