US1569473A - Propeller - Google Patents

Description

Jan. 12 1926. 4

A. GARCIA PROPELLER:

Original Filed March 27, 1924 INVENTQR Gmdmkm BY Y I i "A'fr m svp e thereof.

* ranged for radial mevemena 0's To ai'Z whm '52 may mower-n:

Be it knownizhet L Ammziie GARQEA, zen 0% Spain, residing at Brooklyn. in the ceuziisy 0f Kings and State of New Ycri:

haveinvented. certain new and useful 1mpreveie'eiits in Prcpeiiers, of which the 0 iowing' a specification.

'Eiiis invention reiaies in boat prcfgeiiers of the helical c2 screw 11 e, the invention e having more particular lfififinfi' to a 1:130-

peiiei' arranged in present jvariabie em face, whereby the prepeiier can be more suit ably edjusteci to the beat and engine "00 which is applied. ihe invention having i0? en abject; i319 provision of a novel prcpeiiei' of this type which can be readily ad iustcci to very iis eiiective surface.

F01 ZEi'lTiilQI' comprehension ef 'izi'ie i venhem, and of the ce g-ects and. iECiV ntegesi Lhereci, reference will be had to eiie foiicwing ciescripticn and ecccmpan g ing' drewiiig, and to the ppendeii claims in which the various novel features 0% the invention move pertieuieriy set forth.

Fig. 1 of the drawing is a sectional View showing a twc-bieciefi. propeiier with the in" venticn appiieci' therein this being taken tmnsvereeiy of propeiier axis end along the line 11 of Fig. 2.

Fig. 2 is an axial sectional view 01 this prcpeiier.

Figs. 3 and 4e ere face views ef three and four biecied propellers respectively having the invention applied thereto.

Fig. 5 is a side View 01" Fig. 3.

Referring now to-the drawing the refer ence numeral ineiicetes the hub of the prcpeiier and the reference numemi 11 the shaft 011 which the "propeller is mcun'teei. The blades of the prepeiiei. are siicwn at 12 and eye formed inizegi'ai with the hub. Farmed in the outer end of each of these iiiaciee is e recess. or $101; which is entered a-adiei-iy inic ihe Made from the outer ecige These Sie e 01 recesses 14: 1m 0?? length equei. t0 the iexigzii cf 'the blades cireimiferentiaiiy cciieiere'i.

Freely incuiited in each ef the sictscf receases 14 15 e ieei or piete which 1: 2.1"

edge-r in said recesses, mini which may to project: 5 diiferent eiieteiieee beycncircumferential 0f: the b 1 01 decrease the area of the Eileen? 'Wi 1 sired. Fixed to the inner 0i j 16,.midway between the inner ends of ihese rode heads 18 winch engaqe cam prqecticns on ends of the letter. 18 e mi 17 which ex'teiiiis ireciieiiy inward through the blade and through the hub. the having emerged iiie shaft 11 ehe needs 18 being held in cnmeans 01 e coiied c alisicn springs 20 (i reds and bear on iiie heade these expzi lsicn springs being; ecwzmncdat'cd m the enimr 1 inner ends 21 0'? 5 w, t icde'; extend. it is to be understood 0i course iiizii iiieec springs 20 wiii be of sufiicien z sti-czigih to i'eeisi, we

N1 g} 21 v e '1" 0 m mini 1e P1010 ,ei ie iem Aug. 0 ecccnuwodaie the cam prc ections 19 the imi) propeller may be secured. the shaft 1.1 by

men; m. the prcigei ei c1; the screw 25 being h re min 10- seed through shaft.

ggegei'iieiit with these came project-ices by which surround the s.

the pa" urea in the blades iiii'cugii which the centrifug fierce (.iQVGiii 1?; formed with ennu I recese The suiiabic means peimi'iting 0i: at'lguier use the hub of the pl'UpGliK-Bi end beefing the As W the picb l degree 01 Ci'im] er the leave iiie bciiies of fee Hades. In. 1 be varied and in come-- quence the surface or 0f the proeiiei" is verieci. Y? ."iie I have iiiiiice teei ihe :n'cpeiiw being; farmed of 21 single ces'izing, it W'iii be 'imciei'stooci that in 111em1-- iecturing fine prcpeiier Wiii be convenient-1y "formed in bi-v0 hem es which are later eiicwn tee invensecureci iogehiier.

in Figs. 3 and I {W ticn e ppliefii respectively if) three and. 12cm bieded prcpeiiers. ii: iJ-Zing untiersizcci that each biade is pi'c ided. in eciciition Lhe w shims. With- 2. red

4 2' 1- i5 and may 1' g cm Whiie 1 have t ii at me .iifiQELiliOElS imgiii' be m 1011i (iepei'ting iwrom iiie s defined in .fl z]?! Ming eiluS eeecni J and G aeme blades, a shaft on which said ropeller is mounted, and cam elements on said shaft for retaining said leaves in radially adjusted positions.

2. In combination, a propeller comprising a hub and blades, radially adjustable leaves in said blades, a shaft on which said propeller 18 mounted, cam pro ections on said mea re shafts, and rods connected to said. Leaves and extending radially inward tiimug blades and hub to engage the sai projections.

In testimony whereof I have affixed my signature. 1

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