US794010A - Propeller. - Google Patents

Description

PATENTED JULY il, 195

W, B. HAYDEN.

PRPBLLER APPLICATION FILED ooT.1s,19o4.

tlitiririein @trarre Patented July llt, IilOl.

ri n o isi t: i.. i.. n yy SPECIFICATXN forming part of Letters Patent lil'o. *7911,010, dated July a, 1905.

Application lilm] October 13, 1904.. Serial lilo. 229,295.

To rif/ 1li/tom, lil; lim/y volteo/11,.'

lic it known that lV7 'l/ViLiaAM l'l. llarpnn, atitizcn ol. the United kilates, residing' at New York. in the county of New iifork and State ol' lilew York, have invented new and usel'nl linprovenientsin.lh'opellers ol which the liollowing' is a. spmzilication.

'lhis invention relates to serew-proliiellers; and the ohjeet thereol' is to so ernistruct1 the `propr-.ille 'as to enahle the adjnsting'ol' the propellerdalznles to a less or greater degree ol.' pitch, wlnxrehy the position ol the blades may he adapted to the particular degree el' speed or power desired in the vessel propelled.

rlhe invention lfnrther aims to provide a serew-propeller with a plurality ol :n'ljnstahle ahutinents adapted to engage the hase ol the blaiiles to prevent the tnrl'iiiig' or loosei'iing' ol. the hlades when in their set positions.

'.lhe invention furtl'ier aims to provide a. sercw-propeller with ineansto readily ascertain whether the proper degree olE piteh has heen ohtaii'ied when positioning the blades.

'l'he in vention lnrther aims to construct a screwpropeller whieh shall he simple in its Constrnotion7 strong, durable, and comparatively inexpensive to manufacture.

i/Vith thc `toregoing' and Vfurther objects in View the invention consists of the novel oomhination and arrangennent of parts hereinal ter more speeilieally described, illustrated in the aeeonipanying' drawings. and particularly pointed out in the elailns hereunto appendml.

ln describing' the invention in detail relerence is had to the aeconipanying drawings, I"i, i'iiiiii;1:i. part ol this si ieei l'ication, and wherein like reference el iaraetcrs denote eorresponding' parts throughout the several views, and in which YYYY n liignre Yl is a sectional elinfation olE a serew rn'opeller eonstruraed in aecrn'danee with this invention. Fig'. is a view shiiiwinp' one ol' the llattrnied portions oll the huh. liie'. Si is a view Showing; the hase olE the hlade1 and Fig'. 4lv illustrates one ol the hlades in eleva tion.

he lerri ne' to the d rawing's hy rel'erenee characters, l denotes` the propeller-shatt, to which is lined in any snitahie inanner thehuh 2 lor the blades P. rl`he huh 2 at dillierent points titi on its peri|' hery is llattened, as at fl. As shown, theperiphery ol thehnh 2 is llatlorunl at three points; hut the nun'iher thercol can he inereased or diminished, according' to the nninher ot hlades Ei employed.lhc huh 2, apiiroxinuttely centrally olI each ol the [lattencd portions Jr, is provided with a protuheranee 5. having' a screw-threaile(l openingI terminating' in a screw-tln'eaded reeess in the huh. Thescri'nv-tlireaded opening'ot the protuhcranee and the recess in which said opening' terminates lornis a socket o, the liuiietioii ol which will he hereinafter referred to. '.lhehuh 2 is further provided at each ol the tlattened portions fflwithaseries` ol screw-threzuh ed reeesses T, lour in ninnber. said recesses diei'iosed around the said protnI ieranrfe and arranged with respect to each other suhstantially in the torni ol. a square. The function olE thc recesses T wi ll he hereinafter relcrred to.

lCaeh ol thehhulos 3 is curved at its outer end, as at t5, the Innetiiin'i ol which is to drive the water directly att and prevent waste ol' power hy Centrifugal aetion. `laeh ol theblades 3 at its inner end terminates in a hase i) ol such iliainctcr as to extend over therecesses 7, and Centrally ol the under laee et the base E) a serew-tln'eaded connecting'incinher ll) is provided, said Ineinhcr l() heine` an inte gral part ol'l the hase il and adapted to engage in one ol the sockets t l'or detaclmhly een nectine' the hladc with the huh.

'.llhe ailjnstahlc-ahutnients, which are adapted to engage the hase oi theblades 3 to prevent the turning' or loosening' ol the hlades when in their set positions, insist olA afieries ol. headed iani-screws l l, operating' in there eesscs 7, there heini; tour fain-screws 'l 1 For each hlade. 'l`he lnanller in whieh the srrews operate to retain the blades in their set positions will he hereinafter relerred to.

.lhe means lor aaeei'tainine` the Imsitionine; oll the liladea to the desired piteh eonsisls in providing' each olE the llatteinfd portions 'lol' the huh .2 I etweena pair ol. thejaan-screws ll with a plurality ol recessei; 12, which torni what may he termed a l pitcl'i-scale," each rem eess iinlieatine' a dill'erent degree of pitcln and cmiiperatingr with said recesses 12 is a screw-tlireaded openinrg;` ISS in the haseof eaeh IOO of the blades. Aremovable pin 14 extends through the opening' 13 and is adapted to en- `gage in the recesses 12, so as to indicate that the proper degree of pitch has been obtainedslthat is to say, when the pin let finds a seat in one of the recesses l2 it will be indicated to the person adjusting the blade that a certain pitch has been obtained. The recesses 12 may be provided with suitable degree-marks, if desired.

The propeller is set up in the following` manner: The connecting;member 10 of each blade is inserted in its respective socket fi; but before the connecting' member is posi tioned the jam-screws ll are placed in theirrespective recesses 7. As the setting; up of all of the blades 5l is the same, the setting,` up of one only will be referred to. `Vhcn the connecting'member 10 is screwed into the socket (S, the bladel is turned until the opening' 13 in the base of the blade registers with one of the recesses 1Q, that recess which indicates the desired pitch for the blade. After the opening' 13 registers with one of the recesses 12 the pin ist is screwed home, so to retain the blade at the pitch desired. lVhen the connecting member 'lO is inserted in the socket 6, itis not screwed tl'ierein until the base of the blade engages the protuberz'ince-L; but the base extends slightly above said protulgierance,'or, in other words, does not engage the protuberance. As the desired pitch has been obtained in the manner hereinbefore set forth, the jam-screws Yl1 are moved outwardly, so as to have their heads abut against the under face of' the base, which action will be a somewhat pulling'onethatis, pulling'ag'ainst the threads of the connecting member and the threads of the sockets G and such l'iositioninf,T of the jam-screws that is to say, firmly abutting' against the underneath face of the base of the bladc-swill prevent the turning` or loosening of the blade, as the blade is what may be termed "lixedly secured in position at the proper pitch desired. The heads of the jamsscrews also act as bearings for the base of the blade. lf it be desired to change the pitch of the blade, the jam-screws 171 are loosened, the. pin 14C removed Yfrom the opening and the recess into which it extends, and the blade4 shifted until the opening' lil registers with another of ,the recesses l2. The blade is then secured in position in the same manner as heretofore pointed out.

lit is thought the many advantages of a screw -propeller col'istructed in accordance with the foregoingv description, taken in connection with the accompanying drawings, can be thoroughly umlerstood, and it will, furthermore, be evident that changes, variations, and modifications can be resorted to without departing' from the spirit of' the invention or sacrificing` any of its ad vantag'cs, and I therefore do not wish to restrict myself to the dctails of construction as herein set forth, but

reserve the right to make such changes, variations, and modifications as come broadly with in the scope of the protection prayed.

Havingv thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, isM

l. A screw-propellerinvolving' a hub, a plurality of adjustable blades carried by the hub, and a plurality of adjustable abutnients interposed between the blades and the hub and independent of the blades for lixedly securing' the blades in their adjusted positions.

2. A screw-propeller involving ahub, a plurality of blades adjustable to varying' pitch, means for i'lctermining the pitch desired, and a plurality ofadjustable abutmenl's interposed between the blades and the hub for securii'ig' the blades to the pitch desired.

3. Ascrew-propellerinvolving'ahubhaving a phirality of flattened portions, each of said flattened portions provided with a screwthreaded socket, a plurality of' blades adjustable fo varying` pitch, each provided with a connecting' member adapted to engage in the said sockets, and a plurality of' adjustable abutmen ts engaging in said flattened portions and abutting' against the blades Yfor securing` the blades in position at the desired pitch.

4. A serew-propeller invol ving a hub having' a plurality of liatteued liortions` each of said flattened portions provided with a screwthreaded socket, a plurality of blades adjustable to varying' pitch, each provided with a connecting' member adapted to engage in the said sockets, a plurality of adjustali le abutments engaging in said flattened portions and abutting' against the blades for securing' the blades in position at the desired pitch, and means for .letermining' the pitch desired.

5. A screw-propeller involving' a plurality of blades adjustable to varying pitch, and a plurality of adjustable abutments independent ofthe blades for retaining,r said blades in the positions set.

G. A screw-propeller involving' a plurality of blades adjustable to varying' pitch and cach having` a curved extremity, and a plurality of adjustable abutments independent of the blades for retaining' said blades in the positions set.

7. A screw-propeller involvingI a plurality of' blades :uljustable to varying' pitch, and a jiilurality of jam-screws independent of and adapted to retain said blades in their adjusted positions.

S. A screw-propeller involving' a plurality ol blades adjustable to varying' pitch and each provided with a curved extremity, and a plurality of jam-screws independent of and abutting' against said blades for retaining' them in their adjusted positions.

9. A screw-propeller involving' a hub provided with a plurality of sockets, a plurality of adjustable blades having' connecting' members adapted to engage in said sockets, and a IOO TIO

ISO

plurality oi jam-screws engaging1 in the hub, abutting' against and independent oi the blades for retaining them in their adjusted positions.

l0. [t screw-propeller involving` a hub provided with a plurality of sockets, a plurality ol" :uljustable blades having;l curved extremitie.' and connectingl members, said members adapted to engage in said Sockets For eonneeting;l the blades with the hubq and a plurality ol jani-sermre engaging in the hubq alnitting' againet and independent oli the blades lor retaining' them in their adjusted positions.

fl lo. t sorewqjiropeller in voli/ing' a hub pro vided with a plurality ol' sockets, a plurality oli' :uljustable blades having' Curved extremities and connecting' members, said members :ulapted to engage in said soekets Ior eonneeting,` the blades with the hub`I a plurality ol fam-serews engaging' inthe huband abutting' against the blades for retaining' them in their :uljusted positions, said hub provided with means for indieatii'lg' the :uljustment lor the blades, and means extending' through the blad is and extending' in the means provided tilt in the hub for setting' the blades to the desired adj ustment.

1Q. A screw-propeller involving' a hub provided with a plurality ol sockets, a plurality of adjustaliile blades having eurved extremities and connecting` members, said members adapted to engage in said sockets For eonneeting' the blades; with the hub, a plurality oili jan'i-serews engaging' in the hub and abutting against the blades or retainingl them in their adjusted positions, said hub ijn'ovided with means for indi eating' the desired adjustment lor the blades, eaeh ot said blades 'provided with an openingl adapted to register with said means, and pins extending'through said openings and engaging; iu said means For setting` the blades at the desired adjustment.

ln testimony whereof l have hereunto eet my hand in presence ol two subscribing' \\'itnesses.

Wll'llil /li Nl li. HA YDlGN. lVitnesses:

Uniti-:Lies lil. l'lAYnnN,

Ui Tiri )N ALL MN l'l AYD EN.

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