Improvements in Glaziers' Diamonds.
Year: 1891

page_text: Date of Application, 6th Jan., 1891
Complete Specification Left, 5th Oct., 1891-Accepted, 7th Nov., 1891
PROVISIONAL SPECIFICATION.
Improvements in Glaziers' Diamonds.
I, JOHN EVANS LLOYD, of 135 Stuyvesant Avenue, Brooklyn, in the County
of Kings and State of New York, United States of America, Manufacturer, do
hereby declare the nature of said invention for IMPROVEMENTS IN GLAZIERS'
DIAMONDS, to be as follows :-
My invention relates to an improvement in glaziers' diamonds, and has for its
object to provide an attachment readily applied to the ordinary diamond, whereby
it may be as conveniently and efficiently used by an inexperienced person as by
the most proficient, which attachment is capable of removal when desirable.
Glaziers' diamonds as at present constructed are exceedingly difficult to handle
advantageously by persons not thoroughly understanding their manipulation, as
unless the tool is held at a certain angle to the glass the diamond cuts very
imperfectly, or not at all. The usual angle at which the diamond is held with
relation to the glass to be cut is forty-five degrees.
The prime object of the invention is to so construct the tool that the moment
the diamond is placed upon the glass and pressure is exerted thereon the handle
and block will automatically assume the proper angle for successful work.
The tool is of the ordinary construction-namely, a block, in which the diamond
set, a socket, attached to the block, breakers usually secured to the socket, and
a handle. The under face of the block in which the diamond is secured is beveled,
the bevel being downward in the direction the handle should lean when the tool
is in operation. At one side of the diamond-block an auxiliary block is adapted
to be attached, the under face whereof is so inclined as to constitute a continuation
of the downward bevel of the under face of the block, and near the outer end of
the auxiliary block, in a suitable recess prepared in its under face, a friction-wheel
is pivoted. The angle of inclination of the under face of the diamond-block and
auxiliary block is so calculated that when the diamond and friction-wheel are both
in engagement with the surface to be operated upon the handle of the tool will
be at the required angle for performing smooth and perfect work. The auxiliary
block may be screwed to the diamond-block or attached thereto in any other
manner permitting of its ready removal.
It is obvious that when an auxiliary block constructed as described is used in
connection with the diamond-block the most inexperienced person will be enabled
to successfully use the tool, and that the friction-wheel may be omitted and the
auxiliary block itself be projected downward at one end to bear against the glass;
but the friction-wheel is preferably employed, as it materially assists in the
manipulation of the tool, not only facilitating its movement over the glass, but
acting also to a great extent as a guide.
As the attachment does not constitute an integral portion of the tool, it may be
readily removed when any extension of the diamond-block would interfere with the
manipulation of the tool, which may happen when there is little room for its
movement.
Dated this 6th day of January 1891.
F. W. BARKER,
Applicant's Agent.

page_text: COMPLETE SPECIFICATION.
Improvements in Glaziers' Diamonds.
I, JOHN EVANS LLOYD, of 135 Stuyvesant Avenue, Brooklyn, in the County
of Kings and State of New York, United States of America, Manufacturer, 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 :-
My invention relates to an improvement in glaziers' diamonds, and has for its
object to provide an attachment readily applied to the ordinary diamond, whereby
it may be as conveniently and efficiently used by an inexperienced person as by
the most proficient, which attachment is capable of removal when desirable.
The invention consists in the novel construction and combination of the several
parts, as will be hereinafter fully set forth, and pointed out in the claim.
Reference is to be had to the accompanying drawings, forming a part of this
Specification, in which similar figures and letters of reference indicate corre-
sponding parts in both the views.
Figure 1 is a perspective view of the tool, illustrating the same in position for
use and having the improvement applied; and Fig. 2 is a similar view to Fig. 1,
the improvement being represented as separated therefrom.
Glaziers' diamonds as at present constructed are exceedingly difficult to handle
advantageously by persons not thoroughly understanding their manipulation, as
unless the tool is held at a certain angle to the glass the diamond cuts very
imperfectly, or not at all. The usual angle at which the diamond is held with
relation to the glass to be cut is forty-five degrees.
The prime object of the invention is to so construct the tool that the moment
the diamond is placed upon the glass and pressure is exerted thereon the handle
and block will automatically assume the proper angle for successful work.
The tool is of ordinary construction-namely, a block 10, in which the diamond 11,
is set, a socket 12, attached to the block, breakers 13, usually secured to the
socket, and a handle 14. The under face of the block in which the diamond is
secured is beveled, as shown at a, the bevel being downward in the direction the
handle should lean when the tool is in operation. At one side of the diamond-
block an auxiliary block 15 is adapted to be attached, the under face a¹ whereof
is so inclined as to constitute a continuation of the downward bevel of the under
face of the block, as shown in Fig. 1, and near the outer end of the auxiliary block,
in a suitable recess prepared in its under face, a friction-wheel 16 is pivoted. The
angle of inclination of the under face of the diamond-block and auxiliary block is
so calculated that when the diamond and friction-wheel are both in engagement
with the surface to be operated upon the handle of the tool will be at the
required angle for performing smooth and perfect work. The auxiliary block may
be screwed to the diamond-block or attached thereto in any other manner per-
mitting of its ready removal.
It is obvious that when an auxiliary block constructed as described is used in
connection with the diamond-block the most inexperienced person will be enabled
to successfully use the tool, and that the friction-wheel may be omitted and the
auxiliary block itself be projected downward at one end to bear against the glass;
but the friction-wheel is preferably employed, as it materially assists in the
manipulation of the tool, not only facilitating its movement over the glass, but
acting also to a great extent as a guide.
As the attachment does not constitute an integral portion of the tool, it may be
readily removed when any extension of the diamond-block would interfere with
the manipulation of the tool, which may happen when there is little room for its
movement.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is
The combination, with the diamond-block of a glazier's tool, having a beveled
under face, of a removable auxiliary block having its under face beveled, con-
stituting a continuation of the inclination of the corresponding surface of the
diamond-block, a friction-wheel journalled in the auxiliary block, and means,
substantially as described, for detachably uniting the two blocks, as and for the
purpose set forth.
L 1
1001
F. W. BARKER,
Applicant's Agent.