US1824978A - Guy line and sheave means for use in connection with hoisting and hauling machines - Google Patents

Description

Sept. 29, 1931. K. BERGER 1,824,978

' GUY LINE AND SHEAVE MEANS FOR USE IN CONNECTION WITH HOISTING AND HAULING MACHINES Filed July 25, 1929 2 Sheets-Sheet 1 INVENTOR ATTORNEY Sept. 29, 1931. K. BERGER 1,824,978

- GUY LINE AND SHEAVE MEANS FOR USE IN CONNECTION WITH HOISTING AND HAULING MACHINES Filed July 23, 1929 2 Sheets-Sheet 2 34 r 1 47 as llssip l 7 WI'I'HHHI" 2a 29 Fly: 4

INVENTOR A7201? Berger ATTORNEY Patented Sept. 29, 1%1

UNITED-STA ES PAETENFTOEFFEE i Known Banana-F SEATTLE, WASHINGTON- GUY LINE AND snEAvnMEANs FOR-USE Inoonnno'rronzwrrn,norsrmo ANDI ,HAU 'INGMAGHINES- My invention relates to improvements in guyline and sheave means for 11867111 connection with hoisting and hauling machines of the form commonly termed tower skid done and the object of my invent-ion is to provide guy line and sheave means in combination with thefolding main spar of a tower skidder in which the guy lines eX- Mtend longitudinally through said main spar lo and pass over sheaves in said main spar,

which sheaves are mounted in planes substantially parallel to the plane in which said main spar moves when it is tilted for foldhing whereby tension may be maintained on my or all of said guy wires during the time said'main spar is beinglowered. 1

A further ObJGCt' is to l provide a novel arrangement of sheayes within the main .fl spar which will avoid cramping the guy log loading operations This frame carries 3 '111 of the apparatus inthe nature of winding engines and the like which is necessary to the hauling in andloading oflogs and further carries a main spar, usually from ninety to one hundred feet long, that serves is used as a track cable over whichlogs from the woods may be hauled in to the location of the tower skidder. "This main spar is necessarily very heavy; and due to its great "length, has a very great leverage on the skidder frame. p

The lower end of this main spar ispivotally mounted in an upright tower on the nskidder frame so that said main spar may i "be lowered or swung downwardly into a substantially horizontal position and the free end of the same rested on a separate fiat car when the machine is to be moved. To support the upper end of this long main spar lt is necessary to use several guy lines and "as a support for one end of a sky linewhich Applicationifiled July 23; 1929. Seriai No. 389,334.

it is verydesirable that these guylinesrbearranged so that any desired amount' of tension can be maintainedlon any orvalllof said lines during the raisingand lowering of said main. spar. I. accomplish this object .by mounting the lower guy line' sheaves' within and on said main spar in planes substantially parallel to the plane. in which the main spar moves when it is being raised: or "lowered and-by arranging said sheaves sothat the, guy lines will always draw fairly, over the sheaves and there willbeno 'cramping...or' binding of said guy lines; F

o Other andmore'specific' objects will be ap parent from the following description taken in connection with the accompanying drawf lngs. i g V In the drawings, Figure 1 :is -a fragmentary view partly' in section and partly in elevationof a tower skidderhaving an an rangement of guy lines and sheaves con structed in accordancegwith my invention, showing the main spar raised" position, the middle portion of said main spar being broken away. j

Fig; 2 is a fragment aryview partly in ele-V vation andpartly in section ofthe lower end of the main spar and parts of the tower, the main spar being in a lowered position.

Fig. 3 is a cross. section ofsaid main spar taken substantially on broken lineh3? ot Fig. 1.

Fig. 4 is a detail, being a plan view oftlie engineand winding drums for the guy lines.

Fig. 5 is asectional view on a larger'scale, substantially on broken line 55 of Fig.

Referring to, the drawings, throughout which like reference numerals designate like r parts, 10 is a horizontal main sliidder frame, adapted to be supportedoil-railroad trucks 11 for movement on a railroad track 12. When the skidder is in use the trucks 11 are removed and the skidder fram'e blocked up high enough above the track 12 so: that T empty cars may pass, freely thereunden One or more engines, not'shown, are mounted on the skidder frame for drlving hoisting and hauling drums 14:. A turntable 15 carrying a boom 16 together with suitable drumand engine means 17 18 mounted on the forion" aft center line of the machine.

ward end of the horizontal frame. An upright tower 18 is rigidly mounted on the frame 10 between the drums 14 and the turntable 15 and a main spar 20 is pivotally mounted within said tower on vertically movable trunnion means 21, said trunnion meansbeing more fully described in my copending applicatio'n Serial No. 380,331 filed of even date herewith.

The main spar 20 is forkedat its lower end affording a shorter arm 22 and a longer arm 23. The longer arm 23 serves as a lever which is connected by sheaves 24 and- 25 and cable 26 with power operated drum EFT-whereby said main spar may be raised andlowered. I r Y r V V a In accordance with my invention, I provide within the bottom end of the main spar 20, at the location of the forkportions 22 and 23, six rollers 28, 29, 30, 31, 32 and 33 which are mounted for rotation in planes parallel to the plane in which the main spar swings when it is being raised or lowered. The ,rollers28 to 33 inclusive serve as fairleads and guide means for four guy lines 34, 35, 36 and 37 which are wound on drums 38, 39,40and41. V

The guy lines 34'to 37 extend upwardly through the main spar 20 to the top end thereof and pass outwardly over four sheaves 42 which are preferably mounted for rotation in planes arranged at an angle of forty-five degrees to the planes of the lower rollers 28 to 33 whereby the guy lines may extend outwardly'at an angle of approximately forty-five degrees to the fore and From the sheaves 42 the guy lines 34, 35, 36 and 37 preferably extend outwardly and around sheaves 43 and thence back and are secured as at 44 to the top of the main spar. Other guy lines 45 are secured to the. sheaves 43. The drums 38, 39, 40 and 41 are driven through gears, 46, pinions 47, shaft 48, pin ion 49, gearwheel 50, shaft 51', gear-wheel 52, pinion 53, shaft 54 and crank disc connections 55 to motor 56. provided between the pinions 47 for selectively'engaging any of said pinions and .drivin g any drum independently of the other drums. Suitablebrake means 58 are provided in connection with each drum and each of said drums is also provided with a ratchet for locking the drum when the cable there on is allowed to stand under tension.

In the operation of this invention the lower sheaves 28 to 33 inclusive, being mounted in planes parallel to the direction in which the main spar moves when it is being raised or lowered make it possible at all times to exert any desired amount of tension on any or all of the guy lines while the main spar is being raised or lowered. When the main spar is in any other position between the vertical and horizontal the guy Clutches 57 are the scope of the following claims.

I claim a l. The combination with the pivotally 'mounted main spar of a tower skiddcr, of guy lines extending lengthwise through said main spar and guide sheaves for said guy lines mounted for rotation in the lower end of said main spar in planes substantially parallel with the plane in which said main spar is moved when said main spar is turned into and out of operative position.

2. The combination with the pivotally mounted main spar of a tower skidder, of guy lines extending lengthwise through said main spar and passingoutwardly over guide means at the top ofthe same, winding drum means upon which the lower ends of said guy lines are wound and plurality of sheaves mounted for rotation in the lower end of said main spar in planes parallel with the plane in which said main spar is moved in raising and lowering the same, said sheaves forming a fair-lead for said guy lines whereby tension may be maintained on any or all of said guy lines during a turning move ment of said main spar.

3. The apparatus as claimed in claim 2 in which the guide means at the top of the main spar is in the nature of sheaves rotatably mounted in planes arranged at an angle of substantially forty-five degrees relative to the plane of movement of the main spa-r.

4. The combination with the pivotally mounted main spar of a tower skidder, of four guy lines extending lengthwise through said main spar and passing outwardly at the top of said main spar, independent winding drum means on the skidder for each of said guy lines and six sheaves mounted for rotation in the lower end of said main spar in planes substantially parallel to the plane in which said main spar is moved in raising and lowering the same, said sheaves forming fair-lead means for said guy lines whereby tension may be maintained on any or all said guy lines during a turning move ment of said main spar.

In testimony whereof I hereunto aihx my signature.

KNUTE BERGER.

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