US1177565A - Sheet-metal pulley. - Google Patents

Description

N. BARRY.

SHEET METAL PULLEY.

APPLICATION man AUG-10,1914.

Patented Mar. 28,1916.

2 SHEETS-SHEET I.

FIG.

Nicholas Barry I p H I d N. BARRY.

SHEETMETAL PULLEY. APPLICATION FILED AUG. 10. 191 71. 1,177,565. I Patented Mar. 28,1916.

2 SHEETS-*SHEET 2.

as ;BARRY,' a itecl states residipg at Mus- I 1e oinifiyaof Milscatinef and State inv ntedeertaingaew.and use lmproifeinentsein filifiahll tal Baileys; I hereby declai e that the; following is. a. 11 clear and-exact L-deseriptien thereof, ference" hrs that I, NICI-IOL I ade tampiiig the parts eutof sheet etal'. linp tan 1 11 t nbvel wof i my pulley anal hiib preferably formed essedfsheetust'eel" iveted r i I the rlvery 'impe tant and nf e1 feature hatkeach pplley section wholeis, dipped lt'enTmetaLin e to unite the partsm'o carely give I hem i rierea "st11eng I any-open A 'event rusting The inveiltionwyillgbe explaiiied with refs ereiice' t0 the. accoin 'ianying drawings to enable others t0fm'a iufacture and use the sjarhe;:and the novel-features and combinaticns of parts for which protection is deed are. set forth in the claims. 1111 said drawings? Figure 1 is a side View ef'the complete pulley as securedto a shaft.

i 0t". USCATINEQEOWA. 'Assmfioacco BARRYiCQIVfIZANi, die SQWlTNEMI W M- QBRQB HO as we niem ber, partly-broken.- Fig. ;9;is a.;.bettom "line'101'10,1*ig. 5. 'Fig.-l1 is amletail 1 of one of the joints between the rinis ottwo. "of the. pulley halves. line 12-42, Fig. 5.

by bending" the edges of tllhfiili'h lfonpally up cn" themsel\ es so' that the 4 l 1 Outer edgesdf said r'i'm'ai'e interned against the rim, as shown atgl. F I A Mbea'tl is ,Yfla'tt'eiied' lateralh so cf" the fin iinpai'ts greatstrength and fness tofthefrim and enables the' pullfey to f'mthstand greater. pressagre and ea'ten 'ordt ."neiitlyi niting' them; This. reinfo ce Patented. al-yes, 19 1c.

, Fig. 2 is an enlarged side .view bi enehalf inner face view.-ao f one ;.ef the palley sec- ",tions. Fig. .7qisya, details; seetipnon. line.

7..7 Fig. 2 Fig. 8 is a side View of a clamp View of the clamp. ,Fig. .1.0 'is a iseetion on Figz'lZflSa. sect on on The pulley. is made in tel .0 diametrically rpa rt'ed halves each of which is i similarly constructed and I i'ill describe detail; thus explaining-bothy The rim 1. is' preferably"madeabf r'sheet steel and pressed into semi-circ'ul'a .1

longitudinally; The cuter ec fgaesv o, fvth rim. are preferably provided with" inwardly pros.- Iecting it-ub'ulai' bea ds' 1 which are fe mcd Within-the rina is a circumferential -cenbeing united tdthe inner face of the fin} sec K tien in any suitable waypreferably weld ing; I preferably electrically spct ehl the rim .ar;(1;reiuf o: (cc together as in (1' atcd at the'idi-a. igs, "thus .r' gidly' nd [Y r'nia- 2 greatly strengthens and stitle-ns the-rim and makes it practically unyielding both trans- "ersely aiid radially or circum ferentiallv.

Each pulley section has a plurality of spoke. members and in the puller, sheen there are three spoke memhel's attached to each section. .llach spoke mend-e113 is pref e'ably stamped i'rom sheet stee and bent into oval shape in cross section, and slightly tapered from the hub outward. The enter 4 end of each spoke member is securedto the 'ja bly bent angularly to fit over removable bushings B surrounding the shaft S on which the wheel is mounted (Fig. 1) each iplate. has a base or major flange portion 5 extending parallel with the shaft and has radiallyv extending flanges 5 whichv are adapted to fit around and receive the inner ends of the spoke members 3; and are rigidly attached to the spoke members'preferably The .flanges 5-are connected together intermediby spot welding as indicated at 3.

ate the spokesby webs 5" which are-preferably.- spot welded as indicated at 5, The hub member is also provided at its opposlte ends withprojecting flanges 5 which are pr'ovidedwith openings for the passage of the bolts '8 by which thesections are clamped -'-shaped to fit the hub and is'internally bored a The hub flanges 5* are adapted to'gether,-as hereinafter explained.- i

to fit over a removablebushing B which is externally to fitthe shaft S onwhich-the pulley is to ,be mounted the bushings B are removable,

and-interchangeable, so that the pulley can be fitted to any difierent sized shaft. by providing same with a suitable bushing. Preferably the spoke members 3 are provided ends of the" rim members when the pulley 1 with longitudinal pressed ribs 3 ontheir outer, sides to impart additional strength and stiffness thereto. 1

In order to securely unite the abutting halves are secured to the shaft a plate 7 of stamped sheet "metalis" attached to each end ef the rim members as shownin Figs. 5ft, 10 and 11. Such plate is preferably l..-shaped in cross section and has its outer flange 7 fitted against the inner face of the rim and'secured thereto by spot welding as at 7 and the endof the rim is flanged over the bendof this plate 7 as at 1 and this may be welded or soldered together. he end of the reinforce? is shouldered as at? (Fig.12) to fit over the member 7, and 60 and the' other flange T of this plate which "lies in about the diametrical pulleyandmaybe' previded "w th a central projection 7 fittingiover the bend of the reinforce 2 and ms maybe spotweldedtheretofas shown atw,

be spot welded thereto as The hub end of each spoke memberis at w, see Figs. 10 and 11. The flange 7 may be provided at each side of the reinforce with perforations 7? for the passage of securingbolts 9 which transfix the opposed plates on the (pulley sections and are secured by nuts 9 firmly clamping theabutting ends of the rim together. v After the pulley sections are made they are preferably dipped in molten tin or other suitable metal or composition of metals, which fills the crevices at the bends. and

joints and renders the surface of the pulley v smooth and practically solders the parts together and protects the parts against rust. The parts being preferably connected by electric spot welding someslight crevices may be left between the unwelded portions, and any such crevices will be filled by the molten metal in the soldering'process, thus producinga close joint and preventing looseness of parts. .This soldering, strengthens the pulley approximately 20'to 30 per cent., and the weight of the pulley is decreased as compared with a wooden pulley of given strength and size and as compared with 'ordinary metal pulleys. Such soldered pulleys are especially useful where exposed to damp ness or to action of gases which would be detrimentalto ordinary pulleys, or where exposed to the weather. Soldering of tinningand spot welding pr'actically'renders my sheet metal pulley equivalent to an integral metal pulley, audit can be made as 8 'light as a wooden pulley of the same size. The pulleys -may be even lighter than wooden pulleys for in" actual practice a twenty-four inch pulley four inch face made about sixteen pounds, whereas a wooden pulley of the same size would weigh about thirty pounds);

When the pulley isi'mount ed upona shaft the opposite pulley halves are securely clamped to the bushing and shaft andwto each other by means of clamps composed; of Opposite members 6, preferably made of stamped metal, :each provided in its inner in accordance with my invention will weigh side with a polygonal recessadapted to fit...

over the flanges '5 of each hub section. The

clamp member" is also provided at each end with pro ectingportions 6 which-are provided with apertures 6 for ;the passage of the retaining; bolts 8. Theends 6 ofthe side walls of the clamp member are bent inwardly, as shown in Fig. 9, to closevthe ends of the clamp, and impart additional strength to the clamp; as compared with the open ended clamps which have been heretofore made from sheet metal.. By mean s of these clamps the pulley halves, can. be, securely fastened on the shaft. The polygonal shape lane of the of the recesses in the clamp members prevents the clamps slipping circumferentially on the hub. These clamps are applied ,to

each end of thehub 'ofLthe pulley and will seicu el holarn l i (i l f 1 ns ;tlisp s ni H wfh yl ggtflI l hers aonnected'to thehubinember and hav- M eApnllew cons rueteda y ieiifouter ,ei1ds entered llrsthe open theladyginta g esl e he. se e split pulley lnsaidn'el nfo rce andiseoured thereto;

. z: o l regards: lightness andyea'se qfi plaoing saine 11 lilet ll' split Pulley, :2 1 .1111 1 1 upon alsh'a itnv'ill knot rustnor' corrode; a run member formed of sheet'n etal, andia th im willfnot separateatthej oints;-the re ntorce extendlng cncurntereritlfa'llybi and eing hexagonal ssibility off ithin sa d rj nember; sa1d reinroreegibe-y slip etkveenthe'pulley, d hebushing and; lng arched n; crosssectionlandwproylded clamps the}spoke members b g hollow with flanged ope ngs, to engage th spokes ahd mddein one piece are: ry strongj and with, tubular; spoke" lllglllbels onne t g ly-lto, I therimbeingbeaded and; einforced as'dee the hub nem berandhayingth e ne ed scribedvisistifig rong and the illey entered'in the openlng sfm sa dare nionceiand li es 01 n hexvery readily, applied toga shaft secured toftl'lejhuh and reinforce y--$s iot '1 m member lnwthetspecificationandlelairnsfthecwordf' ,6, 1 11ainetal'splitpuHey,

lderx rsoldere 1 1 nten ded toieoy e dip; h' z wing a I r'ini e 'pr'otr edsivxlith :33 pflng tll ulley sec onsin molten t n g or fi'anged, openingstqi'ec e 1e" outerhends coin 'iose dwof h suitable inetal wor composition of if b1 pok .a huh i I y plates having 'fianges exe metals; Oreo applying suchlhotmetal tbt h 'oppes i' 111}? A y y fi'ectively close the, jointsand tending loiigrtudlnally of the hift crticsirbetween the =connected qpieces and d1ally., d1 P 1j g s q m lns Q, U firinly bondthem togetherthusniaking,the adapted to i-ee'e ietthe'i inerfend n the *homogeneou and oapablejof spekes, and holloxesp'olre1nernbers'=-e'" ,hstanding ugreatfstrain' ithout jnjury, InglllflsOCketS in $211 d reinforce 11dicontribl ti g lnosfismaterially tothe member. durabihty and serviceability ofthe pulleyd' -7. Ina metal split.pulleyfa'fhub m beii w a l ijgg" q composed of opposite similar plate'sh In a metal splitwpulley, a ilm member flanges extendinglongitudinally oftbe forined ofshe etmetal,a reinforceextendingand radiallydisposed flanges "forming 'rcumferentiallyfliof and .withjnsaid :rirn ets adapted to receiye the inner enilg3 o emher, said reinfoi ce being ariched in cross spokes said 7 plates being united by l ction and having: outwardly extending welds; with-a rinimember having o'llow flanges securedto the-rim byelectric welds reinforce provided withfiangedopennigs jto and solder; with a hub member, and tubular receive the outer ends the'spokesi 'an'd sp ke meinbers1oonnecteditopthe hub memhollow spoke members engaging;the soclits be lto 1 reinforc'eby spot Weldsjand in said reinforce and, the hub meinbe M f1 l secured thereto byTsfiot Welds," 2. In ametalsplit'pulleygariin member as described. l formed of sheet metal, and areinforce, ex- 8. In a metal split pulley, a A I riding eircumferentiallygofand within said rim section and an angular} pl elsecured rim ,nienlber,'said reinforce' being arched in eachyend of the section, the ends (it tli'e'grirn crossflseotion; Withanangular plateattached section beingoturnedinward over thefhe'nds' toleaclifendjof thejrim member and having of such plates; a

an inwardly projecting'flange overlying the a 9. In a metal split'pulley, a sheet metal end of the rcinforceand havingalug vatriin'section, 'andsang angular plate secu ed tached to saidreinforce, substatrtiallyasdeto'ea eh end of the, rim section 'ank l'haying l an inwardly projecting flange providelcl yitli scri l y y 3, In a, nietal sfplitupulley a rirnlmer'nber perforations for the engagement of Securing forme'djgifsht inetal, and a reinforce exbolts the ends of the rim section heingtnrned '11'5 tendingcircumferentially of and Within said inward over the .bendsof said plates. Q) g Ijllntme-mbei, said reinforc-beingarched in 10. A rim seetionfor metal split pulleys, W orosssection and havingputyyardly extendformed of sheet metaland havingitsgside ngyflangessecuredfto therirn; with anang'uedges bent inwardly toforln tubular beads; la plate!attachedjto each end of therim with an angular-1y bent plate .atta-ched to cn bentlieaends ofth'e rlm mmber being each end of the rim section, fOI'e I I E: bent over isaid angular plates, said plates to a similar opposed rim section, the ends zerlyihg the ends of the reinforce and of the rim section being bent inwardly over. having outwardly projecting lugs attached said plates. i l l to said reinforce, s'ubsta-ntiallyas described. 11. A metal pulley comprising hub, spoke' 4. In a pulley a hub mei nber, arim memand rim members formed of separate pieces m formed otsheet' metal, anda reinforce of' sheet metal rigidly connectedtogether, tcndingcircumferentially of and Within and the joints between the pieces closed by said rim qnember andfarched in cross secsoldersubstantiallv as specified.

-'on:and provided with fianged'openings to v 12.'

A metal pulley comprising hub, spoke 3 I dos i sheetfmetal', all united together by electric and rim members formed of separate pieces and rigidly united by electric Welds and solder, substantially as specified.

L A metal split pulley composed of op- 'posite sections each comprising a' hub portion formed of separate pieces, spokes and rim members formed of separate pieces of welds and solder, substantially as specified. 16. In a metal pulley, a rim having its side edges bent'inwardly upon themselves to and a ramforce extending-circumferentially of and witl1in"said rim member, said reinfproe being arched 1n cross section and having outwardly extending flanges secured to the rim 7 at intervals andthe joints or crevices there- -between closed by solder, substantially as *17. "In a" meta P y,

described; c v

a rim havlng 1ts side edges bent inwardly upon themselves to form tubular stiffening beads, and a reinforce arched in cross s'ectionand ei'tendm'g circumferentially of and within said rim member and having outwardlyextending anges secured to the at intervals by electric spot welds, the whole being soldered to close, the

jointsa therebetween, substantially as" de-. scribed.

18.'A metal splitpulley comprising a hub member compose "ofopposite similar plates having angularly bent portions. extending circumferentially and lon itu'dmally oi the shaft and radiallydispose 'fianges at the inner ends of said portions bent at inter- ;vals to'form'spoke sockets; in comb nation with-a rim member, and tubular spokes, said spokes being rigidly connected atin'tervals to the rim and hub members and the Whole soldered to closev all joints between the parts intermediate the connectionsand bond them together, substantially as describedlf if). A metal; split .pulley compr sing a hub member composed of opposite similar p lates having.

angularly bent portions extending circamferentlally.and longltudinally .oi theflsha'ft radially disposed fianges at {the inner ends of. said portions bent at intcrvals, to form, spoke sockets; in combination with a rinr member, and tubular spokes, said spokes being rigidly united to'the rim and hub members by'electric spot welds, and

'the whole soldered to close all joints between tl efwjeld s fl.

rim member, said reinforce being archcdu' cross section and havlng outwardly extends;

20. A metal I split ulley comprising a hub. member compose of opposite similar sheet metal plates having angularly bent portions extending circumferentially and longitudinally of the shaft and having radially disposed flanges on their inner ends bent ,radially at intervals to form sockets for the inner ends of the spokes, said plates bein united by electric spot welds, a rim mem er having an arched reinforce provided. with o enings for, the ends of the spokes, andtu ular spokes secured tothe radial flanges of the hubmember at their inner ends and to the said reinforce at their outer ends,said spokes'being united to said reinforce and to the hub members by electrio welds and the Whole soldered to close all the joints between the welds. I 1

21. A met 1 split pulley comprising a hub member composed of opposite similarsheet metal late's having angularly bent portions exten mg circumferentially and longitudu nally of the shaft-and'having radial y disposed flanges on their inner ends bent radially at intervals to form sockets for the" innerends of the spokes, said plates being connected at intervals; with a rim member hav- -ing an arched reinforce provided With openings for the ends of the spokes, and tubular spokes secured to the radial --flanges of the .hub member at their inner ends and -.to the said reinforce at their outer ends, said spokes being united to the reinforce and hub members and the whole soldered to: close all joints intermediate the connections and bond them together. a t l v 1 22. In a metal split pulley,-a hub member, and a rim 1 member, each formed of. sheet metal with vhollow spoke members each formed of .a single piece of sheetlmetal bent .to form a tubularspoke, and secured to the hub and rim member by spotwelds and the whole soldered to-close all joints between .the welds." I;

Inga metal split pulley, a rimflmcmber having a hollow; reinforce provided with flanged openings to receive the outer'ends the whole soldered as close all jdii'it's laid bond the parts together, substantiallgggas described I 24. In a metal split pully, a rim member 1;"

formed of, sheet metal, and a, reinforo tending circum'fer e'ntially of and within s d= ing flanges,fsaid reinforce being secured to substantially ssess-item 25. Fora'metal" hub memto receive the ends of the spokes, said sections being rigidly united together by electric spot welds and solder, substantially as i;

described.

26. A metal split pulley comprisin a hub v, I

" for'iiied of slieedmjetal, and a reinforce"ex-i'l n ientia dial fsa' lisposedflanges zitthe inner em r, and tnbnlarjspokes; said spokes oer ldly'iniited to the trim andfhub electric spot welds and solder.

tal'split" pulley comprising a hub ircumferentia'lly and longitudith ftflahdtliaVin-gfrafdially dis se -ansmassed reinforce their 11GlS5Ti$f2tld spokes being united to the reintorce and hub members by electric weldsm netal split;pulley,a hub member, "member each formed of sheet and. r1

metal, with hollow spokemembersweach formed of a single piece of sheetmetalbent to form a tubular spoke, and secured to the hub and rim member by spot welds.

y I a metal split pulley, a rim member having a hollow reinforce provided with flanged openings to'receive the outer ends of spokes, a hub member having flanges extending longitudinally of the shaft and radially disposed flanges forming sockets adaptedto receive the inner ends of the spokes, and hollow spokes connected to the flanges oi said reinforce and the hub memher by spot welds. I

5o 30. A rim section for metal split pulleys formed of sheet metaland having its side edgesbent to form tubular beads, and sheet metal plates bent longitudinally upon themselves and attached by one side flange to the end of the rim member and ha'vingits other -lybent"portions extending: p i llylongitudinallyof the shaft frim member, said reinforce belng arched i v portions "bent at intervals to fopm spokepsockets; in combination with a sed ofopposite similar sheet lrat ing angularlybentipo'rtions \WllJh-HL said r1m memberand arched incro on their inner ends bent ra-; "ls to'lform' sockets for the the spokes, said plates being b electrio;spot' welds5 withfa rim Vi-1 1g} an arched reinforce pro- C op iingsjfor the ends of the ndeitubular spokesrsecu'redl to 'thef flanges of the hubmemberat their I members ieounected to the hubmember and ahavin'g thei r outer ends entered the'open -rim section, and an angular plate securedt tendingci rcuinferentially of and within saidi5 cross section with an an gularplate united," I

to eachend f the rim member and having .an inwardlyfprqecting flan overlyifiguthec endof the reinforce anda lugunited to these reinforce, the parts being also soldered it gether. i T 34. In a pulley, a hub 'membenVafriin memberformed of} sheet metal, and arein I 'force extending circumferentially of a,i'1 d 5 section and provided with flanged opening to engage the spokes, with tubular spoke 1 ings infls'aid %reinforce'-and unitedfthe'r said-parts being also solderedftogetherlfl 35. In a metal spl t pulley, asheet' metal" each end of therim' seetion and havinglper-"og; forations (don; the engagement ofseeu 36.- Ina -metal'split pulley, a 'rimimem havingv-a' hollowreinforce provided with; flanged openings to receive the outer ends of the spokes, a hub member composed of opposite similar plates having flanges ex tending longitudinally of the shaft and radially disposed flanges forming sockets adapted to receive the inner ends of the spokes, saidplates being'united and being also soldered together, and hollow spoke members engaging the sockets in said reinforcements and hub member.

37; In a metal split pulley, a rim formed oji sheet metal, a reinforce extending circumferentially of and within said rim member, said reinforce being arched in cross plate having an inwardly projecting fiange overlying the end ofthe reinforce and having a In united to the reinforce by spot welds an solder.

39. In a pulley, a hub member, a rim member formed of sheet metal, anda reinforce xtending circumferentially of and Within said rim member, and arched in cross section and provided with'fianged openings to engage the spokes, with tubular spoke members connegt'ed to the hub member and having the outer ends entered in the open- 1 ings in said reinforce and united thereto by spot welds and solder, substantially as described.

40. In a meta split pulley, a sheet metal rim section, and an angular plate secured to each end of the rim section and having perforations for the engagement of securing bolts in its inwardly projecting flanges, the end of said rim section being turned inward over the bends of-said' plates, and united thereto by spot welds and solder, substan tially as described.

41. In a metal split pulley, a rim member having a hollow reinforce provided with flan ed openings to receive the outer ends v of t e spokes, a hub member composed of opposite similar plates having flanges extending longitudinally of the shaft and redially disposed flanges forming sockets adapted to. receive the inner ends of the spokes; said plates united together by spot welds and solder, and hollow spoke members engaging the sockets in said reinforcements and hub member.

surface of the rim; said beads being of greater thickness radially of the pulley than transversely thereof.

In testimony that I claim the foregoing as my own, I ailix my signature in presence of two witnesses. l

- NICHOLAS BARRY.

Witnesses. I

D. LEGLER, J. M. KEMBLE.

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