A New or Improved Device for Increasing and Decreasing the Diameter of Rings.
Year: 1896

page_text: Date of Application, 18th Sept., 1896
Complete Specification Left, 18th June, 1897-Accepted, 28th Aug., 1897
PROVISIONAL SPECIFICATION.
A New or Improved Device for Increasing and Decreasing
the Diameter of Rings.
I, JOSEPH HOLLIS 27 Bath Street Ilkeston, Watchmaker and Jeweller, do hereby
declare the nature of this invention to be as follows:-
This invention relates to a new or improved device for increasing or decreasing the
diameter of rings and the same is carried out as follows:
In the case of increasing the diameter of a ring, I employ a hollow tube having
different diameters upon same and which is cut or slotted in the direction of its
length and is secured to a base plate or support. The ring is placed upon the required
part of the said hollow tube and a conical bolt having a screw thread which engages
in a socket is screwed down so as to cause the diameter of the hollow tube to be
increased thus stretching or increasing the diameter of the ring. In the case of
decreasing the diameter of the ring I provide a tube or cylinder having a conical
interior. This tube or cylinder is secured to a suitable base plate or support and the
ring being placed therein a washer is placed upon the top of same and a screw bolt is
turned so as to compress the said ring against the conical interior and thus decrease
the diameter of the ring, the screwed end of the bolt engaging in a socket. In both
cases the screw bolt passes through the ring to be increased or decreased.
Dated this 18th day of September 1896
E. EATON,
Agent for Applicant.
A New or Improved Device for Increasing and Decreasing
the Diameter of Rings.
I JOSEPH HOLLIS 27 Bath Street Ilkeston Jeweller 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 a new or improved device for increasing and decreasing
the diameter of rings and the same is carried out as follows.
In the case of increasing the diameter of a ring, I employ a hollow tube having
different diameters upon same and which is cut or slotted in the direction of its
length and is secured to a base plate or support. The ring is placed upon the required
part of the said hollow tube and a conical bolt having a screw thread which engages
in a socket is screwed down so as to cause the diameter of the hollow to be increased
thus stretching or increasing the diameter of the ring. In the case of decreasing the
diameter of the ring, I provide a tube or cylinder having a conical interior. This
Pin d

page_text: tube or cylinder is secured to a suitable base plate or support and the ring being
placed therein, a washer is placed upon the top of same and a screw bolt is turned so
as to compress the said ring against the conical interior and thus decrease the
diameter of the ring; the screwed end of the bolt engaging in a socket. In both cases
the screw bolt passes through the ring to be increased or decreased.
In order that my invention may be fully understood, I will now refer to the
annexed drawings in which :--
Figure 1 is a sectional view of my invention for increasing or decreasing the
diameter of rings.
Figure 2 plan view of slotted expanding ring.
།།!:
e is a socket ring which is coned internally as shewn and in which the ring g to he
decreased in diameter is placed. f is a washer which is placed upon the ring 9. The
screwed bolt h engages in the bottom of the socket ringe and by screwing same
down by means of a spanner, key, or the like which engages upon the square i, the
diameter of the ring g may be decreased." "When it is required to increase the
diameter of the ring, the same is placed upon the outside of the slotted cylinder d
which has the different diameters as shewn, and the. cone b carried by the
screwed bolt a is screwed down so as to separate the slotted walls of the cylinder
from 'one another so as to increase the diameter of the ring g by stretching same.
The screwed bolts h and a""may be fixed and a nut memployed rupon same for
producing' the desired effect. "In Fig. 2, n are the slots in the cylinder d. The base o
is shewn as a convenient means of carrying the devices but if desired. .the devices
inay 'be carried upon separate bases or supports.
...
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. In a device for increasing the diameter of rings: a conical socket ring into
which the ring to be decreased is pressed through the medium of a screwed bolt, or
bolt and 'nut.'
2. In devices for increasing the diameter of rings: a slotted cylinder having
various external diameters and into which a cone'is forced by 'means of a screwed bolt
or bolt and nut for the purpose of separating the slotted walls of..said cylinder from
one another and so increasing the diameter of the ring, which encircles the said
slotted cylinder:
.
.
1007
E. EATON,
Agent for Applicant.