US1108520A - Lumber-stacker. - Google Patents

Description

G 'EL 'mgm LUMBBR STACKBR.

APPLICATION FILED SEPT. 22, 1913,

Patented Aug. 25, Milf-l,

g SHEETS-SHEET '1.

UNITED sTAiwrgsmijg- TENT OFFICE,

GEORGE I-I. RICE, F GREEN BAY, `WISCDNIN.

LUMBER-STACKER.

ricarico.,

Specification. of Letters Patent. Patented Aug, 25, 19,14.

Application filed September 22, 19131. Serial No. 791,127.

TU r/ZZ tti/mlmy it may concern: f1

Be it1 known that l, GEORGE H. Riou, a citizen of the United States, and residen-t of Green Bay, Brown county, lvVisconsin, have invented certain new and useful improvements in Lumber-Stackcrs, ofvwhich the following is a specification.

In the piling or stacking of lumber for drying purposes, it has been usually necessary to employ the services of at least two monwone to stand on the pile and the other to pass the lumber up from the ground or from a load.

The obiect (if my invention is to provide apparatus bv means of which dumber may be stacked `to any desired height and handled 'by one man on the pile.

' A further object is to provide an apparatus by means of which lumber may be stacked more rapidly and wit/bless labor ,than by the -usual method.

Other objects of the invention will appear from the following detailed description. .l

The invention consists generally in various constructions and combinations all as hereinafter described and particularly pointed out iii the claims.

In the accompanying drawings forming part of this specification. Fig. 1 is an end elevation of a lumber-stacking apparatus embodying my invention, Fig. 2 is a side elel vation of the'same, Fig. 3 is a detail view of a portion of the apparatus. Fig. 4t is a view showing in detail the device `for plumbing the pile of lumber as it is stacked, Fig. 5 is a sectional View on the line mof Fig. 3, Fig. 6 is a detail view of the frame forming a portion of the lumber sling.

lin the drawing, 2 represents a suitable track running through the lumber yard, and 3 and d are upright standards having wheels 5 adapted to run on said track and Vconnected at the top and bottom by suitable cross bars or braces 6 and 7. The standards are also braced at other. points to form a rigid, erect tower or frame. These standards may be composed oi suitable material and the frame is of sufficient height to adapt it for stacking the lumber as high as may be desired.

Centrally mounted in the top of lthe tower. is a rail 8 on which an electric hoist 9 is supported id adapted to slide lengthwise of the `rail to adjust it for the desired hoisting position. rlFhis rail preferably extends outwardly beyond the tower on each side thereof .to allow a wide rai-nge of movement of the hoist. A sling frame 10 issupported by a cable 11 from the hoist 4and has sling chainsjlQ, which are 2l. lVhc'n this disk is rocked, the bars 18 will be withdrawn or projected .to engage the supporting pins 17\ or `become Vdisengaged therefrom. rIjhe bar 1s raised to the desired elevation by means of cablesQQ having running connections with pulleys 23. By means of these cables the bar may be adjusted to the desired elevation for stacking .gz

lumber. lll/*hen the load of lumber has been raised to the desired elevation, it is swung upwardly until one end overhangs the bar l5 and the hoist is then slackened suiiciently" to allow the end of the pile of lumber to rest on the bar, preparatory to stacking the lumber. 'Suitable cables 24 connect th trame 10 with the -lower portion of the standards and prevent the load of lumber from sliding off the supporting bar.

l prefer also to provide on 'each side of the apparatus 'a device for aiding the workman in plumbing the pile of lumber. This device consists ot a triangular frame 2,5,

hinged at 26 on the carrier bar 15 and having` .bars 2T pivoted to the triangular iframe' rit-28 and adapted to bear on the standards 3 or 4t, said bars being connected transversely with one another by braces 29; Ears 30 are mounted on the frame 25 and have adjusting screws 31 to engage the bars 27' and enable the operator of the apparatus to tilt the frame and adjust it for a vertical position or at a slight angle to the vertical. rThis frame 25, of which there is one on cach side of the machine, moves up and down with the bar 15 and forms a stop for the'. ends of the boards or other lumber that is being stacked and enables the worh'tnan to easily and quickly aline the ends oi: the pieces ot lumber and facilitates to a con siderable degree, the stacking of the pile.

1 2'?" ure uttufzherl est enel compris- `nel bers loitfotally conne und haring :L beurrelaptecl to sugport one lumber in seid sling7 remounteel in said lumber y; geel one another in seiel tower to engage enel support solo o. lumber stocking appuratus' comprisi'ig zx tower, means for hoisting the pile of uber to the rlesireel elevation in seid tower, and o fmiealljr movable lumber plumbing clevice carried by seid tower.

6. A lumber Stacking apparatus Comprising a. tower, u, lumber sling :incl hoist ein rierl by said tower and movable horizontally therein from one sirleto the other ot said tower, and L lumber rest carried by the legs of said tower and vertically adjustable thereon and adapted to support the erlielumber Stacking apparetus comprisi; u vl-ower lumber sling and hoist earried by seirl tower, and movable horizontally therein from one si le to the other of said tower, Vand a-vertioelly adjustable lumber-rest adapted toA support the adjacent enti of the lumber carried bysaicl hoist.

2. A lumber-stacking apparatus comprising u tower, e lumber sling and, hoist therefor, e vertically'adjustable bar arranged to support one end of the lumber in said sling, and a lumber plumbing device movable Vertioally with respect to said tower.

3. A lumber stacking apparatus comprising a tower, @lumber sling and hoist thereln witness whereof, l have hereunto set my hand this 28th clay of August 1918.

GEORG H. RlG-E. lllitnesses M. J. HUGHES, lvl. J. SEEE.

'or operating theI salme, and pins cent encl of the lumber carried by said hoist.

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