US1036834A

US1036834A - Propeller.

Info

Publication number: US1036834A
Application number: US64805111A
Authority: US
Inventors: Charles R Haas
Original assignee: Individual
Current assignee: Individual
Priority date: 1911-09-07
Filing date: 1911-09-07
Publication date: 1912-08-27
Anticipated expiration: 1929-08-27

Description

C. R. HAAS.

PROPELLER.

APPLIGATION rILBn s112127, 1911.

N. l M

AHORA/EVS Patented Aug. 27, i912- By l CHARLESR. HAAS, BRIGHTWATER, BRITISH COLUMBIA, CANADA.

PROPELLER.

Specieationof Letters Patent.

Patented Aug. er, 191e.

Application led September 7, 1911. Serial No. 648,051.

ATo all whom t may concern.'

Be 1t known that I, CHARLES R. HAA'S, a subject of the King of Great Britain, and 'a resident of Brightwater, in the Province of 5 British Columbia, Dominion of Canada,

have invented a new and Improved Propeller, of which the following'is a full, clear, and exactdescription.

My invention relates to propellers, and

l0 more particularly to propellers to be usedin connectlon with air-ships, and has for its object to provide one with an arm to which the blades are pivoted, resilient means be ing provided for holding the blades in a predetermined position relatively to the arm.

Additional objects of the invention areset forth in the following specification, in which the preferred form of my invention is described.

Reference is to be had to the accompanying drawings forming' a part of this speciication, in which similar characters of reference indicate corresponding parts'in all `theligures, and in which-w 1 Figure 1 is a side elevation .of the propeller, showing its position when in motion; Fig. 2 is an end View of the propeller, showing the position of the blades when in motion; and Fig. 3 is va side elevation showing the position of the blades when the propelleris' at rest.

By referring to the drawings, it will be seen that a shaft 5 is provided to which is 5 secured a radially disposed arm 6 extendlng 1n opposite directions from said shaft. Two resilient blades 7 are provided, the blades being preferably rectangular in shape, as shown in Fig. 3 of the drawings.

40 Each of these blades 7 has a plurality of sleeves 8 spaced apart, the arm 6 being disf posed in the said sleeves. On the arm 6 y between the sleeves 8 there are disposed rlcoiled springs 9, one tcrminalof each of these 4coiled springs being secured tothe arm 6, the other terminals extending outwardly from the arm' 6 and being secured to the blades at 10 at a distance from the arm 6. To the inner side of the blades, at a distance4 from the arm 6, are secured tie niembers 11, thel other ends ofthese' tie members 1l being secured to thehub 12 mounted on the shaft 5 to which the arm 6 is also secured. Some distance from the hub 12 brace members 13 are secured to the shaft 5, these brace members extending outwardly andbeing secured to the outer ends of the arm 6. Wing nuts 1l engage the threaded terminals 15 of the shaft 5, for preventing the blades 7 from slipping therefrom. When the propeller is not in use, the blades 7 are radially .disposed with their flat faces lying substantially in the same plane, one at each side of the shaft 5. I/Vhen the propeller is rotated, the springs 9 permit the blades to' bend, but as the inner ends of the blades are secured by the tie members 11, the inner ends of the blades are permitted very little movement relatively to the arm '6, although the ends of the blades at a distance from the shaft 5 are permitted to move a relatively considerable distance. .The brace members 13 act as a check for the blades and limit their movement by the springs 9..

Having thus described my invent-ion, I claim as new and desire to secure by Letters Patent 1. lIn a propeller, posed arm secured mounted to rotate on the arm,

a shaft, a radially disresilient `means for moving the blade in one direction blade mounted torotate on the arm, a tie member connecting the blade at a distance from the arm with the shaft, and a brace member. connecting the arm lwith the shaft and adapted to check the movementof the blade.

4. In a propeller, a shaft, a radially-disposed arm secured to the shaft, a blade mounted `to rotate on the arm, a tie memto the shaft, a blade ber connecting the blade at a. distance from name to this specification in the presence of lheledarm ilwlitl) the shaft, resilient means for two subscribing Witnesses.

o ing t e ladein a. predetermined osition relatively to the arm, and a brace Iem- CHARLES R' HAAb' 5 ber connecting the arm with the shaft and Witnesses:

adapted to check the movement of the blade. G. WHITEHEAD,

-In testimony whereof I have signed my JOHN KIRKPATRICK.