Improvements in Fasteners for Umbrella Runners.
Year: 1892

page_text: Date of Application, 22nd Nov., 1892-Accepted, 14th Jan., 1893
COMPLETE SPECIFICATION.
Improvements in Fasteners for Umbrella Runners.
A communication by HENRY J. HERBERT, of Detroit, in the County of Wayne
and State of Michigan, United States of America, Manufacturer.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of the Agency for
Foreign Patent Solicitors, 6, Lord Street, Liverpool, and 6, Bank Street, Man-
chester, both in the County of Lancaster, and 323, High Holborn, in the County
of Middlesex, Civil 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 :-
This invention consists in an improved spring fastener for unbrella runners,
hereinafter fully described and claimed.
Figure 1 is a plan view,
Figure 2 a section of part of an umbrella stick showing the fastener in position,
and
Figure 3 is an elevation of the fastener.
The improved fastener is stamped out of a piece of sheet metal, usually brass,
and is made in two parts.
E represents a pin formed on one end of the fastener, adapted to drive into
the stick F, and hold oue end of the fastener in position. J represents an arni
extending from pin E, and I represents another arm extending over arm J, and
provided with a nose A. From the junction of the arms J and I, a lug B extends,
which fits into a groove D formed in a pin C, also adapted to drive into the stick F,
and makes a hinged joint between the two parts of the fastener. F represents a
part of an unbrella stick and H represents a saw kerf cut therein with a cylinder
saw, which is made so deep that when the fastener is in position, as shown in
Figure 2, the arm J is free from the bottom of the saw kerf.
Spring fasteners have before been stamped out of sheet metal, but have been so
fastened that the spring, when the nose A is depressed, is practically all given by
the part which carries the nose, corresponding with arm I, and this requires that
the part which corresponds to the arm I should be made quite thin and weak,
and even then the fastener is subjected to heavy strain when the nose is depressed.
With this construction, it will be seen that the arm I forms a lever by which,
when the nose A is depressed, the greater part of the spring is caused in the long
arm J, thus making the spring long and easy and relieving the fastener from undue
strain. The joint formed by lug B and groove E, permits sufficient motion at this
point to allow for the spring of the fastener. The grooved pin C in connection
with the pin E, make it unnecessary to secure the fastener to the stick by
means of a pin passed through the stick and fastener, as is done with all other
fasteners.
Having now particularly described and ascertained the nature of the said invention
and in what manner the same is to be performed, as communicated to me by my
foreign correspondent, I declare that what I claim is―
1. A spring fastener consisting of a piece of sheet metal having a pin at one end,
an upper and lower spring arm, the upper arm carrying a nose at its end
nearest the fastening pin, and a loose connection with the stick at the joint of the
two arms to permit the motion of both spring arms, substantially as shown and
described.
2. An umbrella fastener consisting of a pin E, arms J and I, the arm I carrying

page_text: nose A, a lug B at the junction of said arms J and I, and a pin C having a groove
to receive lug B, substantially as shown and described.
Dated this 21st day of November 1892.
WM. P. THOMPSON & Co.,
Agents for the Applicant.