US579889A - Peopellee - Google Patents

Description

2 Sh eats-Sheet 1.

(No Model.)

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WITNESSES:

ATTORNEYS Vl B 2 Shets-Sheet 2. H. MILLER.

PROPELLER (N Model.)

No. 579,889. Patented Ma,r30, 1897.A

INVENTOR Henz/Z'ZZIV. m/l gg ATTORNEYS W|TNESSES llNiTnn FTATES PATENT Ormea.

HENRY MILLER, OF NEX/V YORK, N. Y., ASSIGNOR OF ONE-HALF TO CARL GOERG, OF SAME PLACE.

PROPELLER.

SPECIFICATION forming part of Letters Patent No. 579,889, dated March 30, 1897.

Application filed December 3l, 1896. Serial No. 617,635. (No model.)

T all whom t may concern:

Be it known that I, HENRY MILLER, a citizen of the United States, residing at New York, in the county and State of New York, have invented new and useful Improvements in Propellers, of which the following is a specification.

This invention relates to a propeller with reversible or adjustable blades which can be ro locked to the propeller-shaft; and the invention provides a practical propeller with reversible or adjustable blades in which the power tending to set the blades to neutral or inactive position istaken off the adjustinglever and transferred to the shaft.

This invention is illustrated in the annexed drawings, in which- Figure 1 is a sectional side elevation of a propeller-hub with blades and shaft. Fig. 2 is a section along a x, Fig. 1. Fig. 3 is a view like Fig. 2 with parts in a different position than in Fig. 2. Fig. 4 is a section along o5' Qc', Fig. 2. Fig. 5 is adetail view of a reversing or adjusting lever. Fig. G is a section along y y, Fig. 1. Fig. 7 is a section along ,e e, Fig. 1.

The propeller-hub is made in sections 1, longitudinally separated, as along line or division 2, Fig. 2, said sections being suitably connected, as by bolts or fastenings 3. The propeller consists of this hub with the blades 4, anysuitable number of the latter being applied. These blades are shiftable or reversible, each blade having a stem 5,1otatively journaled or seated in hub 1. Each stem 5 connects by a crank-pin 6 with slotted arms or lugs 7, extending from or forming part of ashifter or rod 8, extending through or seated in the tubular propeller-shaft9. The hub l is secured to shaft 9, so as to turn with the latter and to be immovable or fixed to such shaft. The shifter S can be moved longitudinally in the shaft, as presently explained.

The shaft 9 has secured thereto a tube or tubular coupling 10, Fig. 1, secured, as by anges 11 and 12, to the driving-shaft 13, receiving power or motion in any suitable way. The shifter 8 is connected by arms or pieces 14 with a sliding sleeve or collar 15. The coupling being suitably slitted, as at 16,

the shifter S, with its arms 14 and sleeve 15, is free to be slid or shifted back and forth..

The sleeve 15 can be shifted by handle or lever 17, suitablyfulcrumed, as at 1S. The lever 17 is suitably connected to the sleeve 15, this lever being shown with a loop 19, Fig. 7, to which at 2O are pivoted lugs 21, engaging in a suitable recess or between shoulders on sleeve l5, so that the latter is free to turn, but cannot shift independently of this primary lever 17. `When the sleeve 15 is shifted in one direction, its shoulder 22 is engaged by catch or hooks 23, held or moved by springs 24 to engaging position. Vhen shifted in the other direction, the sleeve 15 has its shoulder 22' engaged by catch or hooks 23'.

To disengage a catch or set of catches 22 y or 22', a releasing ring or wedge 25 or 25 is moved toward its respective cate 23 or 23 to move the latter against the action of spring 24 to release the shoulder 22 or 22 and allow the sleeve 15 to shift. These rings 25 and 25 are slidably mounted on sleeve 15 and can be shifted or slid by levers 26 and 27, fulcrumed at 2S to lever 17. The springs 29 normally hold the secondary levers 26 27 to take the releaser or rings 25 and 25 away from the catches or locks 23 and 23.

rl`he catches 23 and 23' are secured to or carried by the propeller-shaft 9 or coupling 10, and when sleeve 15 is engaged by one catch or another said sleeve, with shifter 8, is locked to the shaft 9, so that the strain or force exerted by the propeller-blades 4, tending to shift to neutral or inactive position, is taken off the handle or lever 17 and is taken up by the shaft 9 and catches or locks 23and 23.

In the coupling 10, Fig. 1, is a tube 30, having arms or lugs 31, which by means of screws 32 enable the tube 30 to be set or forced toward the shaft 9. The coupling 10 is suitably slotted, as at 33, to allow for the movement or shift of lugs 3l, and the sleeve the packing 35 by the adjustment of packing-tube 30 leak or escape from the inside of IOO shaft 9 is prevented. The paekingtube 30, with packing 35, thus forms a stuffing-box. Leak along the outside of shaft 9 can be prevented by suitable well-known means, as a stuiiing-box. (Shown at 36.) The propellershaft 9, with tubular coupling or sleeve and driving-shaft 13, can be secured against longitudinal motion in well-known way.

By providing the shaft 0 with lugs 37, Fig. 2, and suitably or correspondingly rccessing the sections of hub 1 the hub-sections when clasped and secured about shaft f) will be held by lugs 37 against shifting or turning on said shaft. The lugs 37 can be replaced by a circular rim or shoulder, preventing lon gitudinal shift of hub 1 a well-known key being used to leek the hub against rotation.

The lugs or key 1i must of course be made of sufficient strength to withstand the strain or tendency of the blades or wings 4 to shift.

The rings and 25 are not only shiftable, but also rotary, on the sleeve 15, and said rings shift with, but can rotate independently of, the levers 26.

Any hook or catch, as well known, can be provided to keep a lever or levers 2G locked to lever 17 against the action of spring 29. By having the catches 23' or the collars bearing such catches ad justabl y fixed to shaft 9 or coupling 10, as by set-screws, suoli eollars or catches can be set for any desired pitch of the blades 4.

By having straps or caps 38, Fig. 4, eonneeted by screws or fastenings 39, Fig. 1, to a hub-section 1 and allowing the blade-stems 5 to rotate between such hub-section and cap any wear can be taken up by a tightening of such cap.

lVhat I claim as new, and desire to secure by Letters Patent, is-

1. A propeller provided with shiftable or reversible blades, a shifter or rod for said blades, a shaft for the propeller and a lock or catch for locking the shifter to the shaft substantially as described.

2. A propeller provided with shiftable or reversible blades, a shifter or rod for said blades, a tubular shaft through which the rod extends, a lever or handle for the shifter, and a lock or catch for locking the shifter to the shaft.

A propeller provided with shift-able blades, a shifter or rod for said blades, and a lever or actuating-handle for the shifter, combined with a shouldered sleeve moved by said lever, a catch or lock for the sleeve, a releasing collar or wedge on the sleeve for disengagin g the catch, and a lever or handle for said releasing-collar substantially as described.

4. A propeller provided with shiftahle blades, a shifter or rod for said blades,'and a primary lever or aetinitting-handle for the shifter, combined with a shouldered sleeve moved by said lever, a catch or lock for the sleeve, a releasing collar or wedge on the sleeve for disengaging the catch, and a secondary lever or handle for said releasingcollar, said secondary lever being fulcrumed to the primary lever substantially as described.

5. A propeller-hub comprising longitudinally-separable sections and a shaft about which the hub-sections are clasped, said shaft being provided with a rim or lugs and said hub-sections being correspondingly recessed to fix themselves to the shaft when clasped `about the latter substantially as described.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

HENRY MILLER.

lVi tnesses:

Wn. C. IIAUFF, E. F. KASTENHUBER.

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