Improvements in Size Sticks and Measures.
Year: 1890

page_text: Date of Application, 4th Oct., 1890
Complete Specification Left, 10th June, 1891-Accepted, 18th July, 1891
PROVISIONAL SPECIFICATION.
Improvements in Size Sticks and Measures.
I, WILLIAM BEADLE DAY 85 Marlborough Road Upper Holloway, London, N.
Leather & Grindery Salesman do hereby declare the nature of this invention to be
as follows:-
A trigger working on an eccentric pivot attached to the sliding foot of a size
stick or measure. When the trigger is pressed the eccentric jams on the rule to
which the sliding foot is attached, and thereby fixes the foot in position and holds
it absolutely vertical.
1000
WILLIAM BEADLE DAY.
COMPLETE SPECIFICATION.
Improvements in Size Sticks and Measures.
I, WILLIAM BEADLE DAY, of 85, Marlborough Road, Upper Holloway, in the
County of Middlesex, Shopman, 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 the construction of size sticks or measures.
It is well known that the moveable or sliding parts or feet of size sticks as
hitherto constructed are liable after a time to become loose and fail to give accurate
measurements in consequence of the sliding foot not maintaining a perfectly per-
pendicular position with relation to the graduated rod or rule.
The object of my invention is to ensure the sliding foot always keeping
at a right angle to the graduated rod or quite parallel with the fixed part or foot,
and for this purpose I provide it with a trigger or lever carrying an eccentric or
projection which by a slight movement can be brought to press upon the graduated
rod or upon interposed blocks of suitable material and thereby jam or fix the sliding
foot in an absolutely perpendicular position.
The accompanying drawing represents a side view partly in elevation and partly
in section of a size stick or measure constructed according to my invention.
a indicates an ordinary graduated rod or rule and b the foot which is usually fixed
at one end thereof.
'
c is the moveable or sliding foot made with a slot d through which slides the
graduated rod a in the usual manner.
e is the trigger or lever with which I provide the sliding foot c the said lever
being pivotted at fin a recess g made in the lower part of the foot c.
h is the eccentric or projection formed on the pivotted end of the lever e.
i, i are blocks of rubber, leather or other suitable material which I preferably
interpose between the eccentric projection h and the under side of the graduated
rod a.
With this construction when the lever e is in the position indicated by the dotted
lines the foot c can be slid along the graduated rod a until it comes into contact
with the object to be measured when by turning the lever e into the position shewn
in full lines the projection h will draw down the upper surface of the slot d perfectly
Hat upon the upper surface of the rod a and keep the foot c rigidly fixed perpen-
dicular to the said rod. Only a very slight pressure on the lever e is required to
release the foot c from the rod a.
Although I have shewn my improvements applied to a size stick or measure used

page_text: by shoemakers for taking the size of the feet it will be obvious that they are
equally applicable to other measuring instruments such as vernier calipers and
caliper-squares.
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 :-
1. A size stick or measure having its sliding part or foot provided with a trigger
or lever carrying an eccentric or projection adapted to fix the sliding foot in a
perfectly perpendicular position with regard to the graduated rod or rule substantially
as herein before described.
2. The improved size stick or measure hereinbefore described with reference to
the accompanying drawing.
Dated the 10th day of June 1891.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.