MONTHLY BULLET N STATE CO LLEGE ‘8 ‘8 “8 DE C E MB E R . 1921 The Use of Rope and Tack e B y H . J . DAN A Sp e cialis t in E xp e rimental E ngineering and I E ARL W . A . E Ins truc to r in M e ch anical E nginee ring E NGINE E RING B UL L E TIN NO . 8 E ngineering E xp e rim e nt S tatio n H V . ARPE N T R r . C Dire c E , to 1 9 2 2 E nt r n - b 5 1 1 9 e ed as seco d class matter Septem er , 9 , at th e o of A f A 24 1 9 1 2 st fi ce at Pul man Wash un er ct o u . p l , d g , , The E NGINE E RING EXPE RI MENT STATI ON of the State C ol lege of Washington was established on the auth ority of the act passed W r , 2 8th 1 89 0 by the fi st Legislature o f the State of ash ington March , , “ which established a State A gricultural C ollege and School of Sci mm f ur h r i ence , and in structed its c o is sion to t e th e applicat on o f " r l s l s in us ri l ur ui the p incip es of phy ica ci ence to d t a p s ts . The sp irit o f this act h as been follow ed out for many years by the E ngineering S taff , which has carried on exp erimental investi gations and publish ed th e resu lts in th e form o f bulletins . The first ado ption of a definite o f or n p ro gram in E ngineering res earch , with an app ropriati n its mai :/ ten ce m b f an , y o 2 1 st 1 9 1 1 . h was ade the Board Regents , June , T is s l wa followed by ater ap propriations . In A pril , 1 9 1 9 , this dep art m ent was officially d esi gnated , E n gin eering Exp eriment Station . The scop e of the En gineering Exp eriment Station c overs resear ch in engineering pr oblems of general interest to the citizens o f th e o m o S tate of Washington . T he work f the station i s ade available t the public t hrough technical rep orts , p opular bulletins , and p ublic T m f servic e . h e last na ed inclu des tests and analyses o c oal , tests m an d analyses o f road materials , testing o f c om ercial steam pipe m c overings , calib ration of electrical instru ents , testing of strength c c o f materials , effi ien y studi es in p ower p lants , testing of hydrau li c m c of m m e a hinery , testing s all engines and otors , consultation with r f m gard to theory and d esign o experi ental ap paratu s , preliminary c advi e to inventors , etc . Requ ests f o r cop ies of th e engineerin g b ulletin s and in quiries fo r information on engineering and indu strial p roblems shou ld be t m addressed o Director , Th e E ngineering E xperi ent Station , State m College o f Washington , Pull an , Washington . The Control of th e E ngineerin g Exp eriment Station is vested in f th e B oard o Regents of th e State C ollege of Washin gton . B OARD OF R EGENT S . G Hon . Lou is F Hart , overnor of the State , O lympia M cCrosk e R . C . y Garfiel d m Ada Duncan Dunn , Wapato E dwin A . Ritz , Walla Walla s A . W . Davi , Spokane . J H . Hulbert , Mt . V ernon - . 0 . E Holland , Secretary Ex O fficio , President State C ollege Pullman E NG INE E RING E XPE R DI E NT STATI ON STAFF V Director , H . Carpenter , B . S . , M . S . m m r ; . S . Exp e i ental E ngineerin g Ho er J Dana , B S M , M E E lectrical App lications , Philip S . Biegler , B . S . , M . S E . E . r , . Elec trical S tanda di zations Harry F Lickey , B S A m Asch el . uto otive E ngineering C . Abell , B . S m Steam E ngineering , A . R . Nottingha , M . M . E . c Me hanical Design , E . B . Parker , B . S . r , G . E nginee in g Materials Everett Thorton , B S m Willia A . Pearl , B . S . Steam Power Robert L , Rhoads , M . S B Mining E ngineering , Louis 0 . Howard , A . , M . E . l M eta lurgic al E ngineerin g Chester G . Warfel , M . E . m B . G O . E cono ic eology , laf P Jenkins , A , A M Ph . c . Ph m . B . Irrigation and S tru tures , O s ar L Waller , . , M n . Munic ipal E ngi eering Morri s K , Snyder , B S ‘ Highway E ngineering , . H oward E . Phelps , B . S . , C . E . To po graphical E n gineering , Frederic W . Welch , B . S C . E . n . r , Architectural E gineering , Rud olph Weave B S . B . A gricu ltu ral E ngineering , L J S mith , S A . B renton L , Steele , B , M A Ph m m . S . C he ical E ngineering , . C lare Chris an Todd , B , D TAB LE OF C O NT ENTS LIST O F ILLUSTRATIONS SOU RCE S O F MATE RIAL INTRODUCTION SPLI CE S B IT CH E S LASHINGS TACKLE SE T S HOISTS T RAN SMISSSION CAB LE S TE XTILE R O PE DATA WIRE RO PE DATA S PLI CING TRANSMIS SI ON CABLE S POWE R TRA NSMISSIO N TA BLE S LIST OF ENGINE E RING BULLETINS L I ST OF ILLUSTRATIONS 3 9 . Fasteni ng Knots Sheep shank . - 4 1 . Over hand knot . 0 . Sheepsh ank for free end rop e . 41 - 2 . Double knot . Sheep shank with toggle . 42 3 . Figure 8 knot . Sheepshank ends whipp ed . ' “ 4 . 3 . B ow . 4 . Double Figu re 8 k n ot Shortening ‘ S li es 5 . Squar e knot . p c h ‘ k S Or l c . 6 . R eef not . t sp i e ‘ n 4 . wh i d k o t. 5 E 7 . S q . served or ppe y e Splice . 4 ‘ 6 . 8. Slipp ed S qu are knot . Long Sp lic e . - 47 . e . 9 . O p n hand knot Chain Splice 4 o . 1 0 . Granny kn t . 8 Cut Splice . m ’ 1 1 . Fisher an s knot . a . 1 2 . Ordin ry knot H alf hitch . m i 1 . 5 . h i h . 3 . Ord inary knot whipp ed 0 Ti ber tc ’ 1 ’ 1 5 . u n . 4. Weaver s k ot Clove or B ilder s hitch - 2 . A 1 . t . 5. Hawser knot , or Sh eet B en d 5 Rolling Hi ch 1 ) i t " 53 . H i éh B 1 6 . t Double Shee B end . Roll ng ( ) ’ 4 1 7 . Garrick B end knot . 5 . Snubbing hitch . ’ - i - h k 5 m hi h and al . 1 w in o 5 . t 8. Half hi tch an d pp g n g/ T i ber c h f hitch h 1 9 . Slip knot . 56 . Chain hitc . 57 . ch 2 0 . Bowl in e knot . T wist hit . ' 5 i f 2 1 . Runnin g Bowlin e knot . 8. Twist and bow h tch 2 . 2 . L oo p knot . 59 B lackwall hitch . ’ - 6 2 3 . Tom fool knot . 0 . Lark s head w ith toggle . 1 - 6 . 2 4 . B oat knot . Roun d turn and half hitch ’ m ’ 6 2 . 2 . 5. Surgeon s knot . Fi sher an s hitch ’ 2 6 3 . C . 6 . Bowline on th e bight . at s paw hitch 4 6 . 2 7 . Spani sh B owline . Sli ppery hitch 2 l p 5 5 . 8. F emish B owlin e . Double Blackwall - 2 6 6 . 9 . Hawser knot with toggle . Slip knot and half hich m ’ n 6 7 . i . E nding Kots . F sher an s bend i 6 8. 3 0 . Wh ppin g . Taut line hitch 6 9 . h itCh 1 . 3 Single Crown T ucked . Jam 2 7 0 . 3 . Wall knot Tucked . Scaffold hitch 7 1 . 3 3 . w l Matth e Wa ker . Stu ddin g sail bend 4 s ’ hitCh 3 Double Wall o r Crown knot . Mid hip man s 7 3 . s . 3 5 . Steved ore . Bale lin g 4 . 7 . 3 6 . Chainknot . Hamburger hitch 7 5 . Sling a cask head u p . ‘ l . 7 6 . 3 7 . h W ip ped Shortenin g . Wel pipe hitch m 7 7 . 3 8. Three fold Shortenin g . Hacka ore hitch 1 0 1 . Port Tackle . e . 7 8. H alt r tie 1 0 2 . Dou ble Lu ff . 7 9 . Horse hitch or tie r 1 0 3 . Singl e B u ton ( A ) , e T ie. 80 . Mang r B urton B . 1 0 4. Single ( ) 8 . 81 . Figure Man ger tie . 1 0 5 . Three Fold Purchas e nes . 82 . Har s hitch . 1 0 6 .