An Improved Miners' Pick.
Year: 1891

page_text: Date of Application, 26th June, 1891
Complete Specification Left, 26th Mar., 1892-Accepted, 21st May, 1892
PROVISIONAL SPECIFICATION.
An Improved Miners' Pick.
I JOHN ARTHUR REDFEARN of Corporation Street, Chesterfield in the County
of Derby Engineer do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements in the socket or head of picks, the head a
Sheets 1 and 2 is made of the best material, wrought cast or malleable iron or other
suitable material with solid ends e. e. as shown on the drawings, the pick works on
four bearing edges in the head as shown on Sheet 1. or with two bearing
edges b. b. as shown on Sheet 2. This pick is th of an inch wider in the head
at b. b. than other picks which makes the blades firmer and stronger for all kinds of
work, the blades d. are made of steel having one projecting piece or tongue g to fit
in corresponding recess n. in head as shown on Sheet 1. or with one plain notch i,
without any projecting pieces as shown on Sheet 2 and tightly held in position in the
head a. by a key c, ths of an inch thick as shown in the drawings. Securing
shafts to head by the rim r, at bottom of head or socket as shown on Sheets 1 and 2.
Dated this 25th day of June 1891.
JOHN ARTHUR REDFEARN.
COMPLETE SPECIFICATION.
An Improved Miners' Pick.
I, JOHN ARTHUR REDFEARN of Corporation Street, Chesterfield in the County
of Derby, 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 relates to improvements in the socket or head of picks, the
head a. Sheets 1 and 2. is made of the best material, wrought cast or malleable
iron or other suitable material with solid ends e. e. as shown on the drawings left
with the Provisional Specification. The pick works on four bearing edges ff.ff.
in the head as shown on Sheet 1. or with two bearing edges b. b. as shown
on Sheet 2. This pick is of an inch wider in the head at . . than other picks
which makes the blades firmer and stronger for all kinds of work, the blades d. are
made of steel having one projecting piece or tongue y. to fit in corresponding
recess n. as shown on Sheet 1. or with one plain notch without any projecting
pieces as shown on Sheet 2. and tightly held in position in the head a. by a
key c. 3 of an inch thick as shown on the drawings. It only requires of an inch
in thickness key c. either permanently or temporily as shown on Sheets 1. and 2.
This invention also has the advantage of securing the shafts to the head by the rim /
at Lottom of head or socket as shown on Sheets 1. and 2. and of preventing
the breaking of shafts by greater length of head as shown on Sheets 1 and 2.
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.
L
1. Security of blade d. by means of the tongue 9. on the blade and slot n. in the
Shoot 1

page_text: 2. Securing shafts to the head by the rim r. at bottom of head or socket,
as shown on Sheets 1 and 2.
3. Prevention of breaking of shafts by greater length of head as shown on
Sheets 1. and 2.
J. A. REDFEARN.