Year: 1887

page_text: Date of Application, 30th Apr., 1887.
Specification Accepted, 31st May,
1887.
I, ANTHONY BIVER, of Norfolk Villa, No. 14, Norfolk Road, St. John's Wood,
London, N.W., Gentleman, 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 an improved apparatus for the propulsion of small craft by
hand or foot power, and consists in the combination of a crank or cranks rotated in
bearings fixed at the sides of the craft, and a suitable train of gearing and driving
bands, by which the energy imparted to the said crank or cranks is transmitted to the
screw shaft or shafts.
I attain the aim of my invention by means of the mechanisms illustrated in the
accompanying sheet of drawings in which
Fig. 1 is a side elevation showing the side of the craft broken away for the purpose
of making the construction of my invention clearer.
Fig. 2 is a plan, the shaft tunnel being shown open.
A is the hull; B, the screw; C, its shaft working in pillow blocks c in the shaft
tunnel D.
E are seats or thwarts facing forwards, in which the drivers of the mechanisms
sit, and from which they rotate the cranks F, forward or backwards as may from time
to time be required.
•
Each crank works in bearings suitably attached to the sides of the craft.
The cranks F are illustrated in the figures as to be worked by hand. But I wish it
to be distinctly understood that I may use pedals fixed conveniently for being
operated by the occupants of the thwarts E, and connected in the well-known way to
the cranks F on which a fly wheel may be added if necessary or the cranks F may be
fitted so as to be rotated by both hand and foot power combined.
G, G are spur wheels fast on the arms of the crank, and which drive pinions H, H
fast on the ends of the main shaft J, the bearings of which are supported in any
convenient manner. J is the centre wheel fast on the centre of the shaft I, and
therefore aligned with the screw shaft.
K is a pinion on a transverse shaft L suitably supported by proper bearings in any

page_text: convenient way. It is driven from the centre wheel J. I prefer that the above
mentioned wheels and pinions should be of the chain type, and engage relatively with
their neighbours in the train of gearing by chain bands M, M, and N.
O, o are a mitre wheel and pinion fast on the transverse shaft L, and the screw
shaft C, respectively.
P is a cover or guard making up from the top of the tunnel of the screw-shaft to
the back of the fore seat for the purpose of preventing the rotation of the gear from
splashing the water out of the bilge.
Suitable guards may also be provided to encase the gearing at each side of the
craft and the main shaft I.
I do not confine myself to the relative dimensions of the several wheels and pinions
illustrated in the figures; and the cranks may be made with their throws of adjustable
length.
Twin screws may be used and a suitable reversing gear introduced in either or both
lines of gearing for the purpose of steering by reversing one screw.
Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be perforined, I declare that what I claim is :-
1. The combination of crank supported in bearings athwart or aft in a convenient
position for being rotated by a person or persons seated in the craft and facing
forwards, with one or two lines of chain and wheel gearing by which the manual
energy imparted to the crank may be speeded and conveyed to a transverse shaft
gearing with the screw-shaft, substantially as and for the
purpose hereinbefore
described with reference to the accompanying figures.
2. The combination of a transverse shaft rotated in bearings suitably supported
amidships and which shaft is rotated from cranks worked by hand or foot power,
or both combined, with a large wheel fast on said shaft and engaging through suitable
gearing with the screw-shaft or shafts, and a central guard over the said large wheel,
and gearing connecting it with the screw-shaft, substantially as and for the purpose
hereinbefore described with reference to the accompanying drawings.
1 1
1
1007
PHILLIPS & LEIGH,
Patent Agents,
22, Southampton Buildings, Chancery Lane, W.C.
Agents for the Applicant.