US1289529A - Truck. - Google Patents

Description

W. S. OVERLIN.

TRUCK.

APPLICATION FILED DEC.22. 1911.

Patented Dec. 31, 1918.

4 SHEETS-SHEET l.

W. S. OVERLIN.

TRUCK.

APPLICATION FILED DEC.22.1917.

Patented Dec. 31, 1918.

4 SHEETS-SHEET 2.

w. s. 0VERLIN TRUCK.

APPLICATION FILED DEC-22.1917- LQ89,529. Patented Dec. 31, 1918.

4 SHEETS-SHEET 3.

w. SJOVERLIN.

' TRUCK.

APPLICATION FILED DEC.22.19I7.

1,29,5Q9 Paten Dec. 31,1918.

-ETS-SHEET 4.

WILLIAM S. OVERLIN, OF COLLINS VIEW, OREGON.

TRUCK.

Specification of Letters Patent.

Patented Dec. 31, 1918.

A Application filed December 22, 1917. Serial No. 208,393.

To all whom it may concern Be it known that I, WILLIAM S. OVERLIN,

a citizen of the United States, residing at Collins View, in the county of Multnomah and State of Oregon, have invented new and useful-Improvements in Trucks, of which the following is a specification.

This invention relates to trucks for handling heavy and bulky articles, such as piles of lumber for example, and consists in improvements in the construction of the body or frame and of the running gear, in the means for picking up the load, and. in the mechanism for operating said means. The truck, in its preferred form and as herein illustrated, is a motor truck, and the hoisting mechanism is operated by the same motor which drives the rear wheels.

In the accompanying drawing,

Figure 1 is a side elevation of a motor lumbertruck embodying my invention.

Fig. 2 is a perspective View of the frame.

Fig- 3 'is a vertical section through one of the vertical frame members.

Fig. 4 is a horizontal section through said member on line 44 of Fig. 3.

Fig, 5 is a perspective of one of the load engaging shoes.

Fig. 6 is a side elevation of another form of shoe, and Fig. 7 is a side View of another form of truck.

The frame is of the type which enables the truck to be run over the lumber pile, or other load to be transported, and consists of two rolled iron beams of standard section, preferably I beams, bent into inverted U-shape,

the legs 2 standing vertically at the four corners of the truck and the curved portions 3 forming arches across the front and rear of the truck. Longitudinal beams 4 and 5 join the vertical members near their top The frame thus constructed is supported on the wheels 1 through springs 6 carried by the vertical frame members. The ends of the spring are connected to the flanges of a T-iron 7 ,secured to the upper part of the leg 2 by pieces of sheet metal 8 welded to the flanges of the leg beam and to the web and flange of the T iron.

y A socket-piece 9 is secured to the springclip 10 and receives and rests on the top of a rod 11, which passes through bearing blocks 12 secured between the outer flanges of the leg beam. Near its lower end said rod carries the wheel spindle 13, the outer end of which is supported in a bracket 14 secured to said rod and pivotally connected by" a link- 15 to a bracket 16 projecting from the longitudinal member 5. The links 15 and brackets 16 are omitted in the case of the spindles 13 of the front wheels, leaving their rods 11 free to be turned in steering.

The brackets 14 are removed in Fig. 1 and from the front Wheel spindle in Fig. 2.

Each bracket 16 also supports the outer end of a spindle 17, on which is a sprocket wheel '18 which drives, by chain 19, a sprocket wheel 18 carried by the rear wheel 1.

In practice, 'the' invention is embodied in a motor truck, although this is not essential to the features just described; 20 represents the motor, 21 the casing inclosing the driving shaft and differential, the shaft 22 of which carries a sprocket wheel 23, the chain 24 of which drives a sprocket wheel 25 secured to the wheel 18. 26 is the steering rod and 27 the links by which it is connected to the spindles 11 of the front wheels.

There remains to be described the means by which the load is lifted and supported in transit. This consists of shoes or lifting plates which are slidablymounted between the inner flanges of the lower ends of the le beam 2, angle irons 29 being secured tosa1d flanges and bars 30 at the angles of the same with the web of the beam to form guideways for the vertical members of sa1d shoes to slide in.

Each shoe consists, as shown in Fi s. 2 to 5, of an upper plate 31 and a lower p ate 32, hinged together at 33, plate 32 carryin the lifting shelf 34. The backs of said p ates carry lugs 35 connected by a spring 36 tending to swing the plate 32 on the hinge when in its lowermost position, as indicated in dotted lines in Figs. 2 and 3. Plate 32 has a beveled rib 37 on its back which contacts with the web of the leg beam. Plate 31 has a sheave 38 mounted on its back, around which asses a cable 39, one end of which is secure at 40 to said web. Fig. 6 shows a simpler form of shoe, consisting of lifting shelf 34 and. one vertical plate 41, carrying the sheave 38. To maintain said plate in its position flush with the edges of the flanges of the leg beam, it is provided with a plurality of studs 42 on its back. The cable 39 from each shoe passes over a guide sheave 43 also carries a friction disk 50, with which codperates, when it is desired to raise a load, another disk 51, carried by a longitudinally movable shaft 52, driven by a sprocket chain 53 from the motor.

Shaft 52 is shifted by a yoke engaged by a' short lever 54, pivoted on frame member 4 and connected by a link 55 with an operating lever 56. Brake disk 48 is surrounded by a band 57 connected to another operating lever 58.

When a load is to be'transported, the vehicle is run over the same and then the shoes are engaged under the ends of boards on which the load is set. Then the shaft 52 is shifted to bring disks 50 and 51 into contact and, the motor being running, the load is hoisted to the desired height at which it is held by the brakes 48, 5 7. The truck is then driven to the place of delivery and the load is'gradually lowered under control of said brake.

It will be seen that, in the form of the invention shown in Figs. 1 to 6, the vertical planes of the points of support of the load coincide with those of the wheel axes and, in the form shown in 'Fig. 7, the same is true with regard to the driving or traction wheels, and that the construction of the arched supporting members of I beams or similar structural shapes, provides a veryv strong yet simple frame, the legs of said beams forming very convenient and efficient guideways for the lifting shoes and for, the rodswhich transmit the load to the wh els. It Wlll also be obvious that the frame structure described canbe embodied, in part or in whole, in any type of vehicle, for example,

in a trailer adapted to be attached to the rear end of an automobile,.and that, therefore, my invention ofvehicle shown. f

In Fig. 7 I have illustrated it, by way of example, in a truck in which the'motor and drivers seat are at the front and not over the load.- In this case, the spring suspens1on is omitted from thefront arch member, which is secured to the horizontal longi- 'tudinal frame members 4 and 5 which are is notlimited to the type" Having thus described my invention and its manner of use, what I claim is:

1. In a wheeled truck, the combination of longitudinal side frame members, transverse arched members the legs of which are securedto said side members, springs secured to said legs above the wheels, a. strut between each spring and the corresponding wheel, and load supports carried on the inside of said legs.

2. In a truck, the combination with the wheels and lateral frame members, of vertical arched frame members the legs which are secured to said lateral members, t e center planes of said arched members intersecting the wheel axes, bearings and springs secured to the outside of said legs, struts guided in said bearings and engaging said springs at their upper ends and the wheel spindles at their lower ends, and load car-v rying means slidably mounted on the inside of said legs.

3. In a truck, a frame adapted to straddle the load and comprising an arched I beam,

a wheel on the outside of each leg of said beam, a spring secured on the outside of each leg above said wheel, a strut between each spring and the corresponding wheel, guide bearings for said struts mounted on the outside of'said legs, and load carrying means I I slidably mounted on the inside of said legs. 4. In a truck, the combination of a. pair of longitudinal side frame members, a vertical arched beam connecting said members, a pair of steerable wheels at the front end of said members, a Wheel on the outside of each legof said beam, a spring secured to each leg, and a supporting member between said spring and said wheel.

5. A motortruck adapted to straddle the load to. be conveyed, the frame of which comprises an arched beam of inverted U shape and longitudinal side members, steer-v side members, a driving wheel opposite each leg of said beam, a yielding connection between said wheel and said leg, load carrying means slidably mounted on the inside of able wheels supporting the front endsof said each leg,'a motor on the frame, and connec- I tions therefrom whereby the driving wheels and the load carrying means are actuated.

6. In a truck, the combination of a pair of longitudinal side frame members, a pair of vertical arched transverse frame members connecting said side members, load carrying means slidably guided on the inside of the legs of said transverse members, thrust rods slidably guided on the outside of said legs,

wheel spindles carried by said rods, abutments on the upper ends of said legs, springs between said abutments and said rods, and means to raise and lower said load carrying means.

7. In a truck, the combination of side frame members, a front and a rear transverse frame member composed of an arched beam With its legs rigidly secured to said side members, bearings 0n the outside of said legs, rods carrying the Wheel spindles mounted in said bearings, means to prevent the rods carrying the rear Wheel spindles from turning in their bearings, springs bearing on the tops of the rods, abutments for said springs secured to said legs, load carrying shoes slidably mounted on the inside of said legs, and means to raise and lower said shoes.

8. A truck adapted to be run over the load to be lifted, comprising an inverted U-shaped frame composed of arched beams connected by longitudinal side members, Wheel carrying members slidably mounted on the outside of the legs of said beams, springs betWeen the latter and said Wheel carrying members, load carrying means slidably mounted on the inside of said legs, and means to raise and lower said load carrying means.

In testimony whereof I have hereunto set my hand.

WILLIAM S. OVERLIN.

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