Improvements in Bolt and Rivet Making Machinery.
Year: 1895

page_text: Date of Application, 27th Dec., 1895
Complete Specification Left, 28th Sept., 1896-Accepted; 14th Nov., 1896
PROVISIONAL SPECIFICATION.
• Improvements in Bolt and Rivet Making Machinery.
We, PETER MACFARLANE, STEWART MCFARLANE, and JOHN MACFARLANE
of the Firm of Macfarlane Brothers, of Globe Engine Works, 10 Hydepark
Street, in the County of the City of Glasgow, North Britain, Engineers do hereby
declare the nature of this invention to be as follows:-
This invention relates to improvements in bolt and rivet making machinery and
consists in providing improved means for regulating the stroke of the table whereby
production is greatly increased and facilitated.
In accordance with our invention we provide the crank of the machine with a
ink which is suitably mounted to the side of the machine, and connect to the said
nk the end of the ratchet lever by the usual rod, in place of connecting the ratchet
ever direct to the crank-as beretofore, thus giving a slow advance and quick return
notion.
Doted this ofth day of Dooornbor 19005
Improvements in Bolt and Rivet Making Machinery.
We, PETER MACFARLANE, STEWART MCFARLANE and JOHN MACFARLANE
of the Firm of Macfarlane Brothers, of Globe Engine Works, 10 Hydepark
Street, in the County of the City of Glasgow, North Britain, Engineers, 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 improvements in bolt and rivet making machiney and
consists in providing improved means for regulating the stroke of the table whereby
production is greatly increased and facilitated. Also by my invention the
momentum of the table in revolving is reduced to a minimum, so that less brake
power is required thereby enabling the machine to run at a greater speed.
But in order that our said invention may be more readily understood and easily
carried into effect we will proceed to describe the same with reference to the
accompanying drawings in which
Figure 1 is an elevation and Figure 2 a plan of part of a rivet making machine
shewing our improvements applied thereto.
Referring to the said drawings we employ a link A mounted upon a pivot a upon
the side of the machine B, the said link being provided with a slot C within which
a bush c upon the end of the crank D slides, the arrangement being such that an
oscillating motion is given to the link A by the said crank.
The said link may be secured to any other convenient part of the machine if
desired.
The rod E, which is connected to the end of the ratchet lever of the table in the
usual way, is connected to a swivel piece a' by a pin a³ the said swivel piece

page_text: being secured to the link A by a piece a³, or we may employ any other double joint
which may be found suitable.
The arrangement of the foregoing is such that by connecting the rod to the link
in place of direct to the crank as heretofore a slow advance and quick return
motion is secured thereby allowing the attendant more time to feed the rivets into
the dies, and the travel of the rod being now almost parallel and in line with the
ratchet lever and pawl there is lese oscillation between the pawl and the ratchet
teeth.
If desired I may employ cams, elliptical wheels or any other mechanical
equivalent whereby a slow advance and quick return motion can be obtained.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed we declare that what we
claim is :-
In bolt and rivet making machinery, the employment of a link pivotted to the
side of the machine, having an oscillating motion imparted to it by the crank of
the machine, to which is attached the end of the rod for actuating the ratchet
lever of the table, whereby a slow advance and quick return motion is given to the
rod or any other mechanical equivalent whereby a slow advance and quick return
motion can be obtained, substantially as hereinbefore described and shewn in the
accompanying drawings.
Dated this 26th day of September 1896.
JOHNSONS,
115 St. Vincent Street, Glasgow, Applicants' Agents.