Improvements in Dumb Bells.
Year: 1891

page_text: Date of Application. 2nd Dec., 1891
Complete Specification Left, 9th Mar., 1892-Accepted, 9th Apr., 1892
PROVISIONAL SPECIFICATION.
Improvements in Dumb Bells.
WILLIAM PALMER 1st Class Sergeant Instructor Army Gymnastic Staff
Gymnasium, Aldershot, do hereby declare the nature of this invention to be as
follows:-
*
A wrought iron (or other metal) core bolt "A," passes through the ends or
knobs "B," with a wood case- "C," between the ends or knobs "B," and when
screwed up, as hereafter described with the nut "D," forming a dumb bell.
The core bolt "A," has a flat angular head at one end, and a thread and nut "D,"
at the other.
The wood case "C" is a piece of tubular wood, which fits over the core
bolt A," and into the circular recesses of ends or knobs "B."
35
The ends or knobs "B," are of cast iron, and are cast separately, with a hole
through the centre.
At the ends of the hole are two recesses, the outside one angular to receive the
nut "D," or head of bolt A," the inside one circular, to receive the ends of wood
case
"
C.
י:
When these parts are placed as herein before described, the nut "D," is tightened
by the ends or knobs "B," being turned in opposite directions till the whole is firm
and tight, which completes a dumb bell.
The letters of reference indicate corresponding parts, in the accompanying
drawings.
Fig. 1. is a longitudinal section, on the line 1, 2, of Fig. 2, and Fig. 2. is an end
view.
Dated this 1st day of December 1891.
WILLIAM PALMER,
Applicant.
COMPLETE SPECIFICATION.
Improvements in Dumb Bells.
WILLIAM PALMER 1st Class Sergeant Instructor Army Gymnastic Staff
Aldershot Hants, 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:-
Whereas dumb bells, formed of a single casting of iron, are unpleasant to handle,
injurious to the skin, and easily broken. Dumb bells, formed of iron ends joined
by a wood handle, are also easily broken.
The object of my invention, is to improve the construction of dumb bells, by
providing a combination of wood and metal intermediately between the two ends,
all parts being interchangeable, and so constructed, that light or heavy ends may
be used at option, and to make a dumb bell, not injurious to the skin, pleasant to
handle, and practically indestructible.
In my improved dumb bell, a wrought iron (or other metal) core bolt "A."
passes through the ends or knobs "B. with a wood case "C." between the ends or
knobs "B." and when screwed up, as hereafter described by the nut "D." forming
a dumb bell.
The core bolt "A." has a flat angular head at one end, and a thread and nut "I)."
at the other

page_text: The wood case "C." is a piece of tubular wood, which fits over the core
bolt "A." and into the circular recesses of ends or knobs "B.".
t
The ends or knobs "B." are of cast iron, and are cast separately, with a hole
through the centre.
At the ends of the hole are two recesses, the outside one angular to receive the
nut "D." or head of bolt "A" the inside one circular to receive the end of wood
case "C."
When these parts are placed as herein before described, the nut "D." is tightened
by the ends or knobs "B." (which act as spanners) being turned in opposite
directions, till the whole is firm and tight, which completes a dumb bell.
And in order that my said invention may be clearly understood, reference is
hereby made to the drawings (left with "Provisional Specification") in which
similar letters of reference indicate corresponding parts.
Fig. 1. is a longitudinal section on the line 1. 2. of Fig. 2. and Fig. 2. is an end
view of my invention.
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 the construction of dumb bells, the use of the core bolt "A." which passes
through the ends or knobs "B." and is secured by the nut "D." substantially as
and for the purpose herein before described and set forth.
2. In the construction of dumb bells, the use of the wood case "C." which fits
over the core bolt "A." and into the recesses of ends or knobs "B." substantially
as and for the purpose herein before described and set forth.
3. In the construction of dumb bells, the combination of wood and metal made
and fitted substantially as and for the purpose herein before described, and shewn
on the drawings.
Dated this 8th day of March 1802
WILLIAM PALMER.