US1195624A

US1195624A - Psopelleb

Info

Publication number: US1195624A
Authority: US
Publication date: 1916-08-22
Anticipated expiration: 1933-08-22

Description

R. TANNER.

PROPELLER. APPLICATION mm MAR. 13. 1 915.

PatentdAug. 22,1916.

JZ l Z I Z4 3 5 1 Z ZZ Inventor Attorneys if ..7k///Z67 ROE TANNER, F ATTICA, QHIO.

LROPELLER.

messes.

Specification of Letters Patent. Patented l ning. 22., 191%.

, Application filed March 13, 1915. Serial No. 14,282.

To all whom it may concern:

Be it known that 1, Ron TANNER, a citizen of the United States, residing at Attica, in the county of Seneca and'State of ()hio, have invented a new and useful Propeller, of

. which the following is a specification.

This invention relates to propellers of that type especially designed for'use in connecmeans for mounting the propeller wherebyit may be held against vibration while rotating at a high speed.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and m the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention hereindisclosed, can be made within the scope of what is claimed, without dc parting from the spirit of the invention.

In the accompanying drawings the preferred form of the invention has been shown.

In said drawings :---Figure 1 is a vertical longitudinal section through a structure embodying the present improvements. Fig. ,2 is a front elevation of the propeller.

Referring to the figures by characters of reference 1 designates portions of the air ship to which the present -'improvements are applied, said portions being provided with hearing rings 2 having interior raceways 3 carrying anti-friction balls 4: engaged. by rings 5 mounted for rotation in the rings 2. The rings 5 are connected by any suitable means,'such as strips 6 whereby they will rotate together." Furthermore these rings 5 are connected by spiders 7 to hubs 8 which are secured in any suitable manner to the drive shaft 9 of the propeller. One of the hubs 8 has a flange 10 to which is secured the hub 11 of the propeller, this hub being connected by spokes 12 to a circular rim 13."

The spokes may be formed of wire somewhat after the manner of the spokes of ordinary bicycle wheels,

although spaced apart. greater distances. Thus the rim 13 is held concentric with the hub 11 and will rotate therew1th. Interposed between hub 11 and .rim 13 are segmental blades 14, each blade havlng bearing studs 15 extending from the outer and inner ends thereof, the outer studs 15 being mounted within the rim 13 while the inner studs bear within the hub 11. Said'inner studs 15 have radial arms 16 to which are pivotally connected actuating rods 17. These rods extend through the spiders 7 and are connected to a flange 18 at one end of a sleeve 19 which is featheredon the shaft 9. Said sleeve has an annular groove within which is arranged a ring 21, this ring being plvotally engaged by the forked end 22 of a lever 23. This lever is fulcrumed as at 24 upon the air ship structure and has oppositely extending arms 25 connected by cables 26 or the 'like to opposed arms of a lever 27. This lever is mounted where it can be easily manipulated by the aviator and any suitablameans may be provided for locking the lever in any position to which it may be adjusted. This means is preferably in the form of a toothed segment 28 and a pawl 29. Suitably arranged guide wheels 30 are mounted on the air ship for engaging the cables 26 to hold them in proper positions.

It will be apparent that when the shaft 9 v is driven in the usual manner the hub 11 and rim 13 will be rotated therewith, carrying the blades 14. Likewise the rings 5 will rotate together Within the rings 2 and will operate to prevent the shaft 9 and the propeller from vibrating -during the rotation thereof at a high speed. At any time during such rotation, the sleeve 19 may be shifted longitudinally so that motion will be transmitted through the rods 17 to the crank arms 16, thus swinging the blades 14' simultaneously about their axes of rotation, thereby to adjust them an ularly, thus to increase or diminish their e ectiveness as propelling mediums. It will be noted that the rings 5 project into channels in the inner faces of the rings 2 so that the shaft 9 and the parts carried thereby are thus held against longitudinal displacement.

What I claim is i The combination with a structure having spaced bearing rings, and connected rings revoluble withinsaid bearing rings, of a solid drive shaftextending throughthe centers of'said connected rings and revoluble therewith, a-propeller revoluble with said shaft and the connected rings and including In testimony that I-claim the foregoing as radial blades movable about individual ramy own, I have hereto aflixed my signature 'dial axes, a sleeve revoluble with and slidin the presence of two witnesses.

able upon the shaft, actuating'rods fixedly connected to the sleeve and extending Witnesses: through the connected rings, and connec- EARL R. HART, tions between said rods and the blades. HARRY H. BOYD.

ROE TANNER.