Improvements connected with Two Throw Crank Shafts.
Year: 1897

page_text: Date of Application, 13th Mar., 1897
Complete Specification Left, 6th May, 1897-Accepted, 3rd July, 1897
I BUY IDIONAL OF ECIFICATION.
Improvements connected with Two Throw Crank Shafts.
I, THOMAS MYERS, of "Cleveden," Portmore Park, Weybridge, Surrey, Engineer,
do hereby declare the nature of this invention to be as follows:-
The object of this invention, is to construct a two throw crank shaft with a complete
un-split skew, or spur wheel, or eccentric keyed, feathered, or pinned upon that part
of the crank shaft immediately between the two inner crank cheeks, and to attain
this end without unduly weakening the cranks or the shaft.
I construct them in the following manner :-
I first forge and finish two duplicaté slab cheek cranks complete with their shafts,
I then cut off the shaft on one side close against the cheek of one of the cranks, and
after securing the skew or spur wheel or eccentric close up against the cheek upon
the shaft of the other crank by any suitable means, I drill or bore a hole in the cheek
of the first crank in the place and upon the centre from which the shaft was removed.
I then insert the shaft of the second crank carrying the wheel or eccentric tightly
within this hole, and secure it by shrinking, keying, or any ordinary known method
in such a manner that the whole shall form one complete and perfect double throw
crank shaft with an un-split wheel or eccentric fixed on the shaft between the two
cranks.
Tabad this 1011
1 1001
improvements connected with Two Throw Crank SnartB.
I, THOMAS MYERS, of "Clevedon," Portmore Park, Weybridge, Surrey, 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:
The object of this invention, is to construct a two throw crank shaft with a
complete un-split skew, or spur wheel, or eccentric keyed, feathered, or pinned upon
that part of the crank shaft immediately between the two inner crank cheeks, and
to attain this end without unduly weakening the cranks or the shaft.
I construct them in the following manner, and as will be understood by reference
to the annexed drawings:-I first forge and finish two duplicate slab cheek cranks
A, B, complete with their shafts C, D, C, D¹, I then cut off the shaft, say D¹, on one
side close against the cheek E of one of the cranks, and after securing the skew or
spur wheel or eccentric F close up against the cheek G upon the shaft Č¹ of the other
crank A by any suitable means, I drill or bore a hole in the cheek H of the crank B
in the place and upon the centre from which the shaft was removed. I then insert
the shaft C¹ carrying the wheel or eccentric F tightly within this hole and secure it
[Price 8d.1

page_text: by shrinking, keying, or any ordinary known method in such a manner that the
whole shall form one complete and perfect double throw crank shaft with an un-split
wheel or eccentric F fixed on the shaft C¹ between the two cranks A, B.
Having now particularly described and ascertained the nature of this invention and
in what manner the same is to be performed I declare that what I claim is :-
1. Constructing two throw crank shafts in separate parts, as and in the manner
described for the purpose explained and shown on the annexed drawings.
2. Forging two complete single throw cranks, cutting off one limb of one crank
and boring the boss axially for the reception of a limb of the other crank after a
complete gear or other wheel is mounted thereon, as set forth.
The 6th day of May 1897.
H. GARDNER,
Patent Agent, 166 Fleet Street, London,
Agent for the said Thomas Myers.
H. GARDNER,
Patent Agent, 166 Fleet Street, London,
Agent for the said Thomas Myers.