Improvements in Jigs or Appliances for Finishing Cycle and like Frame Joints.
Year: 1899

page_text: Date of Application, 10th Feb., 1899
Complete Specification Left, 10th Nov, 1899-Accepted, 30th Dec., 1899
PROVISIONAL SPECIFICATION.
Improvements in Jigs or Appliances for Finishing Cycle and like
Frame Joints.
I, CHARLES RILEY GARRARD, of 107, Ryland Street, in the City of Birmingham,.
Engineer, do hereby declare the nature of this invention to be as follows:-
-
My invention has for its object the production of simple and convenient jigs
or appliances whereby the joints of a cycle, motor car or similar frame can be
more readily and effectually tooled or finished than by the laborious, slow, and
objectionable filing process at present in general use.
I construct a jig in accordance with my invention with a body part preferably
consisting of a V shaped block of steel or other metal, having split jaws within
which the finishing tool is clamped by the tightening up of one or more screws
arranged on the jaws. The V shaped block or tool body is also provided with a
pair of sockets, disposed at obtuse angles with the longitudinal centre line of the
tool, for the reception of the operating handles, or the handles themselves are
sometimes formed in one piece with the jig body.
To one side of the jig body I hinge a cap or retaining piece, and on such cap
or retaining piece, I mount rollers, which, on the rotation of the jig, roll upon the
tubular portion of the frame adjacent to the joint operated upon by the tool. The
free end of the hinged cap or retaining piece is arranged in detachable connec
tion with the opposite side of the jig body preferably by the employment of a
hinged bolt and a thumb nut.
In using the jig the thumb nut is unscrewed and the one end of the hinged
cap released from the jig body which can then be placed over one side of the tube
adjacent to the joint to be operated upon. The cap is then pulled up until its
rollers are in contact with the opposite side of the tube and is secured in such
position by tightening the thumb nut. A suitable cutting or finishing tool is
secured in position in the jaws hereinbefore described and the complete appliance
is rotated by means of the handles to cause the tool to cut away the surplus
material left by the brazing operation, and skim up or re-scrape the end of the lug,
bracket, or socket whether previously machined or not
By my improved jigs or appliances I am enabled to rapidly and efficiently
finish the joints of a cycle or similar frame without risk of weakening the metal
by the nicking or undue rubbing frequently occurring with the existing method
of performing such operations.

page_text: Improvements in Jigs or Appliances for Finishing Cycle and like
Frame Joints.
I, CHARLES RILEY GARRARD, of 107, Ryland Street, in the City of Birmingham,
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:.
My invention has for its object the production of simple and convenient jigs
or appliances whereby the joints of a cycle, motor car, or similar frame, can be
more readily and effectually tooled and finished than by the laborious, slow, and
objectionable filing process at present in general use.
In the three accompanying sheets of explanatory drawings to be hereinafter
referred to,―
Figure 1 is a sectional side elevation, Figure 2 a plan, and Figure 3 an end
elevation of a cycle frame joint finishing jig constructed in accordance with my
invention.
Figure 4 is an end elevation, Figure 5 a sectional side elevation, and Figure 6
a plan showing a modified form of my jig.
The same reference letters in the different views indicate the same parts.
Referring to Figures 1, 2, and 3, 1 construct a jig in accordance with my in-
vention with a body part or saddle A, preferably consisting of a V-shaped block
or steel or other metal, having split jaws within which the finishing tool as B is
clamped by means of screws Carranged on the jaws. The V-shaped black or
saddle A is also provided with a pair of sockets A¹ and A³, disposed at obtuse
angles with the longitudinal centre line of the tool, for the reception of the
operating handles D and D', or the handles themselves are sometimes formed
in one piece with the jig body or saddle
To one side of the jig body or saddle A. I hinge a cap or retaining piece E,
and on such cap or retaining piece, I mount rollers FF, which, on the rotation of
the jig, roll upon the tubular portion G of the cycle frame adjacent to the joint
operated upon by the tool, as illustrated at Figures 1 and 3. The free end of
the hinged retaining piece is arranged in detachable connection with the opposite
side of the saddle preferably by the employment of a hinged bolt H and a thumb
nut J.
In using the jig, the thumb nut J is unscrewed and the one end of the hinged
piece E released from the saddle A which can then be placed over one side of
the tube as Gadjacent to the joint to be operated upon. The retaining piece E
is then pulled up until its rollers FF are in contact with the opposite side of the
tube and is secured in such position by tightening the thumb nut J. A suitable
cutting or finishing tool as B is secured in position in the jaws hereinbefore des-
cribed, and the complete appliance is rotated by means of the handles D D¹ to
cause the tool to cut away the surplus material left by the brazing operation, and
skim up or scrape the end of the lug, bracket, or socket whether previously
machined or not.
In the modified form of jig illustrated by Figures 4, 5, and 6, a pair of rollers
as are mounted upon each side of the hinged retaining piece E but upon
opposite sides of the vertical centre line through the part G upon which the
appliance is mounted The retaining piece E is hinged and bolted to the
saddle A as shown. The screw K, which engages with the tool B as shown, is
provided for the purpose of advancing or feeding the tool on to the work.

page_text: Instead of employing a hinged retaining piece as hereinbefore described I
sometimes make such pait completely detachable from the saddle part of the jig.
By my improved jigs or appliances I am enabled to rapidly and efficiently
finish the joints of a cycle or similar frame without risk of weakening the metal
by the nicking or undue rubbing frequently occurring with the existing method
of performing such operations.
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 jigs or appliances for finishing cycle and like frame joints, the combina-
tion with a saddle part mounted on the work to be operated upon and having a
cutting tool and operating handles fitted thereto, of a hinged or detachable retain-
ing part carrying rollers which roll upon the said work on the rotation of the
complete appliance, substantially as described.
2 Jigs or appliances for finishing cycle and like frame joints constructed sub-
stantially as described and as illustrated
MARKS & CLERK,
18, Southampton Buildings, London, WC.,
13, Temple Street, Birmingham, and 25, Cross Street, Manchester,
Agents for the Applicant.