Year: 1896

page_text: Reprinted
as amended in accordance with the decision of the Comptroller General
dated the 9th day of June 1905.
I, ERNEST MANNINGTON BOWDEN Journalist 9 Fopstone Rd Earl's Court Rd
S.W. do hereby declare the nature of this invention to be as follows:-
The object of my invention is to provide mechanism of a novel kind for trans-
mitting power, whereby I dispense with pulleys, angle levers, ball joints, and other
usual mediums.
For the purpose of carrying out my invention, I employ two flexible wires or rods
of any material, one of which is inextensible, and the other imcompressible as regards
its length, or both may be either inextensible or incompressible, these wires or rods
are held together in such a manner as not to prevent a sliding movement between
them, the power is transmitted by a sliding or longitudinal movement of the wires
relatively to each other, for instance, the ends of the incompressible wire being
suitably held, the inextensible wire is pulled, and the power is transmitted.
The plan I preferably adopt for keeping the wires together is as follows: one wire
is wound into a spiral form, the distance of coil from coil being regulated according to
requirements, so that the whole is incompressible as regards its length, or a flexible
tube may be used, carrying one or more wires within it, and the inextensible wire,
which is preferably stranded, to render it supple, is inserted down the bore or the
spiral wire or tube.
The ends of the coiled wire or tube may be fixed in any suitable manner, and the
power may be applied to the inextensible wire, either directly or by means of a lever
or any other suitable device.
Having now described a convenient and advantageous method of carrying this
invention into practice, it is obvious that the herein before described improvements
can be modified without departing from the spirit of the said invention.
1000

page_text: "New and Improved Mechanism for Transmission of Power."
I, ERNEST MONNINGTON BOWDEN of 9, Fopstone Road, Earls Court, London in the
County of Middlesex, Journalist, 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 an improved mechanism for transmitting motion or power
more-especially in directions other than in a straight line or between two
Loints the distance between which varies, without the use of guide pulleys, angle
levers, ball joints or other similar contrivances.
According to my invention I employ two flexible members one of which is incom-
pressible and the other inextensible, the said members are under some circumstances
however made both inextensible and also incompressible.
These two members are so arranged with respect to one another that they have a
free sliding longitudinal movement one with respect to the other, the arrangement
being such that one member acts as a guide to the other which becomes the operating
member the guiding member being held at both ends.
Having generally described my invention I will now describe it more specifically.
Supposing for example that it is desired to impart motion or power in one direction
only. This may he effected in two ways. First by making the operating member
work in tension, and secondly by making the operating member work in compression.
In the first arrangement the operating member would be made inextensible and the
guiding member incompressible, and in the second arrangement the operating
member would be made incompressible and the guiding member inextensible. In
either of these arrangements a spring or its equivalent of any suitable type may be
employed to return the operating member to its normal position.
A convenient method of constructing the first arrangement is that shown
diagramatically in the accompanying drawing in which the incompressible member A
is conveniently made in the form of a tube out of wire coiled closely together. The
ends of this tube are fixed in suitable blocks or bearings a, a. The inextensible
member B is mounted within the member A and may consist of a length of stranded
wire. One of the ends of this member is connected to the object to which motion or
power is to be transmitted and its other end is connected to the lever or other device
to which the motion or power is applied; in the accompanying diagram one end is
shown terminating in a loop or handle b and the other end is shown carrying a
finger b¹ moving over a scale. If the loop or handle b be drawn or pulled down the
finger 6' will indicate a corresponding upward movement on the scale.
In some cases these two systems may be combined, the power or motion being
transmitted partly by the tension member and partly by the compression member,
each member acting as a guide to the other.
If it is desired to impart motion or power in both directions, both of the members
must be both incompressible and inextensible in which case the spring is dispensed
with.
In-some-eases-it-may-be-expedient-to-use-more-than-two-members.-the-respective
members-boing held--together--and--arranged--in--any--suitable-manner-so--that-a
relative-longitudinal movement-may be-set-up-between-them.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I would have
it understood that I am aware that surgical instruments (such for example
as the laryngeal forcepe and probany) have been used containing one

page_text: member which
which is flerible and one member which, though capable of
deformation, retains its form and acts as rigid during operation. I do not claim
the like as forming part of my invention nor do I claim any combination for the
purpose of transmitting motion or power which does not contain two elements both
of which must be flexible during operation, but subject to the above, I declare that
what I claim is:-
(1) The new and improved mechanism for transmitting motion or power as herein
specified.
(2) An improved mechanism for imparting motion or power consisting essentially of
two flexible members so arranged that a relative longitudinal movement one with
respect to the other can be set up between them, one of the said members being
incompressible and the other inextensible, or each both incompressible and inexten-
sible, as set forth.
Dated this 10th day of Augu
то
ROBERT E. PHILLIPS, Assoc. M. Inst. C.E., M.I. Mech. E.
Consulting Engineer & Patent Agent,
70, Chancery Lane, London, W.C.
Agent for the Applicant.