US1436999A - Logging truck - Google Patents

Description

J. McL-ARTY.

LOGGING TRUCK.

APPLICATIONHLED SEPT- 3. 192:.-

Patented NOV. 28,. 1922.

4 SHEETSSHEET 1.

J. McLARTY.

LOGGING TRUCK.

APPLICATION FILED SEPT-3, 1921.

1,436,999 Patented Nov. 28, 1922.

4 3HEETSSHEET 2.

I Gwen L01 J. McLARTY.

LOGGING TRUCK.

APPLICATION FILED sEPT'. 3, 1921.

Patented Nov. 28, 1922..

Patented Nov. 28, 192 2.

4 SHEETS-SHEET 4.

z .1 mx M, W w J J. MCLARTY.

LOGGING TRUCK. APPLICATION FILED sEP'rJ3. 1921.

Patented Nov. 28, I

' 'Toallwlwmitmw concern:

. Be it known t at I, JOHN MCLARTY, a citizen of the United States, ,residing at 'Klamath Falls, in the county of Klamath- 5 and State of Oregon, have invented new and 7 JOHN Mutant, or xLm'rnnLLs-oaneon, assrenoa crown-m1 ro Inns a EASSELBEEG", Q! KLAIATB FALLS, BE GON.

oeeme ration.

Application filed September 3,1621. Serial no. 498,288,.

usefulImprovements in Logging Trucks, of

which the following is a specification.

The object'of my present invention is the provision of a power truck designed espel. cially .for logging purposes and constructed with a view to being'moved with facility in woods and also with a view to quickly takin up and depositing a plurality of logs with but little labor on the part of an attendant or attendants.

The truck is desi ned to also serve other pu i'poses as her ina ter set forth. o the attain ent of the foregoing, the invention consists in the improvement as 1:. hereinafter described and definitely claimed.

1 In the accompanying drawings, forming part of this specification Fi ure 1 is a top plan view of the truck constltuting the best practical embodiment M of my invention that I have as yet devised.

Figure 2 is a side elevation of theimproved truck.

Figure .3 1s a rear end elevation of the truck.

B0 Figures 4 and are enlarged detail views of important combinations hereinafter explicitly referred to.

Similar numerals of reference designate corresponding parts in all of the views of to the drawings.

Among other elements my novel truck comprises body arches 1, preferably of cast steel and spaced apart in parallel relation. A portion of one of said arches is shown in '1 Fig. 5. The said body arches l are r0- vided at the outer sides of their "pendent portions with lateral apertured lugs 2, and guided in the said apertured lugs are verti cal rods 3 on the lower portions of which '21: are fixed spindles 4 by which are carried ground wheels 5 with sprocket gears 6 at their inner sides. Certain of the lugs 2 bear against the upper ends of coiled springs 6" on the rods 3, shown in detail in Figure 4,

c with the result that the body arches 1 are yieldingl supported and are adequately cushione In this connection I would have it understood that I refer to employ coiled s rings 6 such: as ilustrated Hi Fi ure4;

t e said spring? being interposed etween v ,6 on the and the springs being preferabl inipai'rs and equipped with anti riot-ion bearings 6 as shown. The wheels '5 may be plain metal- [licwheels or may be equipped with rubber tires'in the discretion of the manufacturer-of I v the truck. v,

Interposed between and connecting the endent ortionsof the body arches 1 are ower and upper longitudinal braces? and 8, Figure 2.

and is connected in the ordinary well known manner with the working parts of a for- Ward differential 14. Flxed on the said drive shaft 13 is a spur gear 15, Figure 1,

in intermeshed relation with a spur gear 16' on a longitudinal shaft 17 which-is connected by gearing 18 with the shaft 19 of a rear differential 20- The shafts 21 .of the forward differential 14 are clutched at 22 to shafts 23, one of which is shown in Figure 5, and the shafts 24 of the rear differential .20 are clutched at 25 in similar manner to similar shaft 23. Each of the shafts 23 is [connected through an universal joint 26 with a shaft section 27, and the said shaft section 27 is slidably connected at 28 to a shaft section 29; the said shaft section 29 being telescopically arranged in the shaft section 27 and being of angular form in cross section so as to be capable of moving endwise relatively to the section 27 and yet adapted, to be turned about its axis by the same. The several shaft sections 29- are Superimposed on and suitably fixed to connected at their outer ends through universal joints 30 with shaft sections 31, carried in brackets 320m the vertical rods 3. At their outer ends the shaft sections 31 are provided connected through the medium of sprocket belts 34, Figure 1 with the sprocket gears ound wheels 5. In virtue of the connections just described it will be m with sprocket gears 33 which are derstood that the ground wheels 5 are driven from their respective difierential; also, that by manipulating the clutches 22 and 25 any one of the ground wheels may be disconnected from the motor- 7 Clutched at 40 to the shaftv 17 is a supplemental shaft 41 which is connected by gearing 42 with a drum 43. Mamfestly through the medium of the clutch 40 the drum 43 ma be connected with the motor 12 when it is desired to powerfully rotate the said drum 43. it will also be noticed by reference to Figure 1 that the shaft 17 is connected by gearing 50 with a shaft 51 at the rear of the truck. The said shaft 51 is clutched at 52 to a rear longitudinal shaft 53. On the shaft 53 in rear of the clutch 52 is a brake disk 54 associated with a brake band 55 which maybe and preferably s manipulated in the manner common to brake: bands. As best shown in Figures 1 and 3 the shaft 53 is connected by gearing wlth longitudinal shafts 56 arranged in parallelism and equipped with drums 5'(, des1gned and adapted to take up cables 58 in whlch logs may be suspended as indicated in Figure 3. Manifestly after the shaft 531s clutched to the shaft 51 for the-utilization of power in lifting the logsin the cables 58 clear of the ground, the brake band 55 may be applied in order to hold the cables 58 and maintain the logs carried by the said cables 58 inraised position.

For the steering of the truck I provide the means best. shown in Figures 1 and 2. The said means comprises an upright shaft 60 equipped with a hand wheel 61 and a.

miter gear 62, and a shaft 63 carried slightly below the main frame and havlng a gear 64 intermeshed with the said gear 62. At

', its inner and rear end the shaft 63 is universally connected to a shaft 65 on the rear end of which is a miter gear 66. The said miter gear 66 is interposed between and con-- nected to miter gears 67 and 68 on shafts 69 and 70, respectively. The shaft 69 is provided with a right hand thread on its outer portion and a shaft 7 O is provided with a left hand thread on its outer portion. The said threaded portion of the shafts 69 and .70 are disposed in nuts 80 on slidable blocks 81 movable in guides 82 on the main frame. The said slidable blocks 81 are pivotally connected at 83 to arms 84 slidably arranged in the brackets 32 as best shown in Figures 1 and 5. In virtue of this construction it will be apparent that turning of the hand shaft 60 will be attended by swinging of all of the four brackets 32 in a common direction. Thus the truck may-be readily guided toward the right or toward the left,

according to the direction in which the hand shaft 60 is turned, by the movement of all of the ground wheels 5. From this it follows that the truck may be handled with claim and desire to secure by Letters-Patent,

Leeacee great facility and may be quickly turned in a ace of small area.

tween lugs thereof and the said abutments of the rods, spindles carried by the rods,

ground wheels mounted on, said spindles, means,connecting the body arches, shafts carried by said upright rods and movable therewith, and driving connections between the said shafts and the fround wheels;

body arches having 2. The combination 0 lugs, upright rods movable in said lugs and provided with abutments, springs to sup- 4 port the said body arches interposed between lugs thereof and the said abutments of the rods, spindles carried b the rods, ground wheels mounted on said spindles, means connecting the body arches, shafts carried by said upright rods andmovable therewith, and driving connections" between the said shafts and the ground wheels; the said.

springs each comprising two coiled-spring units, anti-friction means between the adj acent ends of the said units and about the adjacent rod, anti-friction means between one unit and the abutment on the rod, and antifriction means between the other unit and the body arch.

3. The combination of body arches-having lugs, upright rods movable in said lugs and provided with abutments, springs to support the said body arches interposed between lu s thereof and the said abutments of the ro s, spindles carried by the rods, ground wheels mounted on said spindles, means connecting the body arches, shafts carried by said upright rods and movable therewitl1, and drivingconnections between the said shafts and the ground Wheels, with brackets fixed on the rods and containing the said shafts, and means for swinging the brackets and turning the rods about their axes for steering purposes. 1

4. The combination of body arches havin lugs, upright rods-movable in said lugs an provided with abutments, springs to support the said body arches interposed between lu thereof and the said abutments'of the ro s, spindles carried by the rods, ground wheels mounted on said spindles, means connecting the body arches, shafts carried by said upright rods and movable therewith, and driving connections between the said shafts and the ground wheels, with brackets vfixed'on the rods and containing the said shafts, and means for swinging the brackets and turning the rods about their axes for steering purposes; the said means including transversely movable blocks, manual means to simultaneousl move said blocks in opposite directions, an arms interposed between and connecting the blocks and the brackets.

5. The combination of body arches having lugs, upright rods movable in said lugs and provided with abutments, springs to support the said body arches interposed between lugs thereof and the said abutments of the rods, spindles carried by the rods, ground wheels mounted on said spindles, means connecting the'body arches, shafts carried by said upright rods and movable therewith, and driving connections between the said shafts and the ground wheels, with brackets fixed on the rods and containing the-said shafts, and means for swinging the brackets and turning the rods about their axes for steering purposes; the said meanscomprising transversely movable blocks having right and] left hand nuts, right and left hand threaded shafts engaging said nuts and having miter gears at'their inner ends, a shaft having a miter gear interposed between in connection with the first-named miter gear, and a hand shaft connected with the last-named shaft.

In testimony whereof I afix my signature.

1 JOHN MGLTY.

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