Improvements in and relating to Sorew Propellers.
Year: 1894

page_text: COMPLETE SPECIFICATION.
Improvements in and relating to Sorew Propellers.
We, JOSEPH BUDD JONES, of 1945 Hancock Street, Machinist, and JOHN
BRANSON, of 2121 North Front Street, Baker, both in Philadelphia, Pennsylvania,
United States of America, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement :-
This invention consists of a propeller, which receives a greater number of
rotations from the shaft than the shaft itself, the propellers rotating with great
rapidity without causing the shaft to rotate at the same speed.
It also consists of an additional propeller, which is rotated in reverse direction
to the other propeller, and at a different rate of speed.
It also consists of a thrust-bearing or block of novel construction.
It also comprises a novel support for one end of the propeller shaft, the same
being movable, and so adapted that access to the adjacent portion of the propeller
mechanism is permitted for purposes of dismemberment, repairs, restoration, and
the like.
In the accompanying drawings
Figure 1 represents a top or plan view of a propeller embodying the invention.
Figure 2 represents a longitudinal vertical section thercof.
Figures 3, 4, 5 and 7 represent sections respectively on lines x, x, y, y, z, z,
and a, a Figure 2.
Figure 6 represents views of parts of the anti-friction bearings of the thrust-
bearing.
Similar letters of reference indicate corresponding parts in the several figures.
A Figure 1 designates a shipper for a clutch mechanism mounted on one end of
the propeller shaft B. C designates the stern post for supporting the corresponding
end of said shaft, and D designates the thrust-bearing for said shaft, said
parts. A, C and D being mounted on the frame, floor or bed E, and said shaft
being divided as at F, F, forming parts B', B and B³.
The shipper A is hinged Figure 2 to said bed and forms a bearing for the rotary
sleeve G, which may be coupled with the sleeve H by means of a tongue and
groove, the said sleeve H being connected with the adjacent section B' of the
shaft B, by means of a feather or spline, so that the power of the engine or motor
communicated to said sleeve G may be communicated to the section B', and finally
to the sleeve H. When the shipper is properly operated, the sleeves G and H
are disconnected, and the sleeve H may be removed from the section B' preparatory
to removal of the other parts for the purpose of dismemberment, repairs, restoration,
and the like.
J designates a disc or head which is formed or otherwise connected with the
sleeve H, so as to be rotated by the latter, said head being mounted in the housing K,
and carrying on its side the pinions L, which mesh with the internal gear rim M,
which is fixed to the housing K, and with the pinion N, which is fixed to the
section B³ of the shaft B, whereby as the head J rotates, the pinions L are carried
around by the same, and they are rotated by the rim M, and serve to rotate the
pinion N and consequently the shaft section B2, it being evident that one rotation
of the section B', imparts a greater number of rotations to the section B', in the
present case at least three in number, this increased rotation being imparted to
the propeller P whose hub is secured to the section B of the shaft B.

page_text: The thrust-block D consists of the side frames Q, and the rotating head R
within the same, said head being secured to the section B2 of the shaft. On the
sides of the head R, and within the frames Q are conical anti-friction rollers S,
which are mounted on the concentric annuli T, the latter being joined by the radial
arms U in the spaces between which said rollers S are located, it being noticed
that the shaft section B2 passes through the frames Q and the thrust-bearing as
provided, is strong, firm and reliable in its nature.
The hub of the propeller P, at the end thereof, carries the pinion V, which
ineshes with the pinions W, the latter being mounted on the stationary boss X on
the section B of the shaft B, said boss having on the periphery thereof the
internally-geared rim Y of the hub of the propeller Z, the latter being freely
mounted on said boss, and rotating thereon, it being evident that as the propeller P
rotates it communicates motion to the propeller Z in reverse direction and at a
different rate of speed.
Interposed between the ends of the boss X, and those of the hub of the
propeller Z are circular rows of anti-friction rollers A¹, C', Figure 2, the same
causing said propeller to rotate with the greatest ease.
In the section B of the shaft is a bore or duct D', the same communicating with
an inlet opening E' in the stern post, by which provision oil may be directed to the
division or joint F, between the sections B3, B³ of the shaft, and so reach the
joint between the propeller P and the boss X, whereby the section B', the pinions W
and the internal gear Y may be lubricated, the oil also entering the joint between
the propeller Z and boss X, thus lubricating the same, as well as the rollers A¹, C¹.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1st. A sectional shaft having on one of its sections a power mechanism, and on
an adjacent section a propeller mechanism connecting said sections for imparting a
greater speed to the propeller section than to the other section, and a thrust
bearing or block for said propeller section, substantially as described.
2nd. A sectional shaft, a rotatable sleeve connected with one section, and a
propeller secured to another section thereof, pinions journalled on one side of said
sleeve, a housing in which said sleeve is journalled, an internal gear rim connected
with said housing, and a pinion on said propeller section meshing with said sleeve
pinions, said propeller section of the shaft being journalled in said sleeve, said
parts being combined substantially as described.
3rd. A sectional shaft having on one of its sections the loose and fast member
of a clutch mechanism, and on an adjacent section a propeller, said propeller
sections being journalled in the fast member of the said clutch mechanism, and
intermediate gearing connecting said fast member and said propeller section,
whereby greater speed is imparted to said propeller than to said first mentioned
section, said parts being combined substantially as described.
4th. A sectional shaft, a power mechanism on one of said sections, a propeller
blade on
an adjacent section which is connected at one end with said power
mechanism, a second propeller on a section adjacent to said second-named section,
mechanism substantially as described for operating said first propeller at a greater
speed than the first-named section, and mechanism connecting said propeller sections
for imparting motion to said second propeller in a reverse direction from that of
the first named propeller, substantially as described.
5th. A sectional shaft, a propeller on one section which is rotatable, a boss on
the other section which is stationary a propeller on said boss, and intermediate
gearing whereby one propeller operates the other in reverse directions, substantially
as described.
6th. A sectional shaft having two propellers secured to different sections thereof,
a pinion carried by the hub of one of said propellers, a stationary boss on the

page_text: section having the other propeller, and a pinion on said boss engaging said first-
mentioned pinion, said latter propeller being mounted on said boss and having an
internally-geared rim, said parts being combined substantially as described.
Dated this 27th day of November 1894.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicants.