US1206248A

US1206248A - Excavating apparatus.

Info

Publication number: US1206248A
Application number: US9476316A
Authority: US
Inventors: James A Reed
Original assignee: Individual
Current assignee: Individual
Priority date: 1916-05-01
Filing date: 1916-05-01
Publication date: 1916-11-28
Anticipated expiration: 1933-11-28

Description

J. A. REED.

EXCAVATING APPARATUS.

APPLICATION FILED MAY I. 1916.

Patented Nov. 28, 1916.

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J. A. REED.

EXCAVATING APPARATUS.

APPLICATION FIILED MAY 1. I916.

Patented Nov. 28, 1916.

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JAMES A. REED, OF HENRYETTA, OKLAHOMA, ASSIGNOR 0F ONE-HALF T0 HENRY HOWARD, OF HENRYETTA, OKLAHOMA.

EXCAVATING APPARATUS.

Specification of Letters Patent.

Patented Nov. 28, 1916.

Application filed May 1, 1916. Serial No. 94,763.

T 0 all whom it may concern:

Be it known that 1, JAMES A. REED, a citizen of the 'United States, residing at Henryetta, in the county of Okmulgee and State of Oklahoma, have invented new and useful Improvements in Excavating Apparatus, of which the following is a specification.

This invention relates to excavating apparatus of that class in which a car supported on an elevated track carries a scraper which may be vertically adjusted to excavate material at the required depth, such excavated material being subsequently carried to a dumping place and there deposited by tilting the scraper.

The present invention has for its object to produce an excavating apparatus of the class referred. to which will be simple in construction and thoroughly efficient in operation.

A further object of the invention is to simplify and improve the construction of the car or carriage and related parts.

With these and other ends in view which will readily appear as the nature of the invention is better understood, the same consists in the improved construction and novel arrangement and combination of parts which will be hereinafter fully described and particularly pointed out in the claims.

In the accompanying drawings has been illustrated a simple and preferred form of the invention, it being, however, understood that no limitation is necessarily made to the precise structural details therein exhibited, but that changes, alterations and modifications within the scope of the claims may be resorted to when desired.

In the drawings,-Figure 1 is a side elevation showing the scraper lowered for operation. Fig. 2 is a side elevation raised for transportatlon. Fig. 3 1s a top plan view. Fig. 4: is a transverse sectional view taken on the line 41 in Fig. 3, through the axis of the transporting wheels and guide wheels at one end of the car. Fig. 1* is a detail end view of one of the hangers I-I detached. Fig. 5 is a longitudinal sectional detail view taken on the line 55 in Fig. 3.

Corresponding parts in the several figures are denoted by like characters of reference. The car or carriage C is supported for travel on a track which may be formed of two tightly strung cables 15, the samebeing supported at a suitable elevation above the material to be excavated. In many cases this will be the preferred track construction on account of the facility and comparatively small expense thereof; it is obvious, however, that a track of a more permanent character may be supported on trestles or framework of any convenient character.

The carriage has been shown as consisting of a rectangular frame having side members 16 and

end members

17, 18 which for convenience will be called the front and rear end members. The side members 16 project terminally beyond the end members to produce ears or lugs 19 with which clips or clevises 20 are connected for convenience in attaching the ropes or cables whereby the device is operated,.as will be more fully described.

The car G is equipped with supporting wheels 21 and with guide wheels 22 which are mounted on the side members adjacent to the four corners of the car frame. The

wheels

21 and 22 are of substantially the same size and construction, all of said wheels being annularly grooved, as seen at 23; the supporting wheels in order to engage and ride on the cables which constitute the tracks and the guide wheels in order that the hoisting cables to be presently described may be guided thereover. The supporting wheels and guide wheels are mounted in.

hangers H of special construction, each of said hangers comprising two inverted U-

shaped yokes

24, 25, the proximate limbs of which are connected together at their lower ends by a bridge piece 26 which, when the hanger is placed in position abut-s on the lower edge of one of the side members 16. The

yokes

24, 25 will thus be disposed adjacent to the inner and outer faces, respectively, of the side members 16. The limbs of the yokes, as well as the side members 16, are apertured for the passage of the spindles or axles 27 which may consist of bolts, and which serve to support for rotation the supporting wheels 21 and the guide wheels 22, only one axle being required for each pair of wheels. When the supporting wheels travel on the track, the weight of the frame will be supported on the bridge pieces 26 that connect the

yokes

24, 25 of the hangers, thereby relieving the axles of excessive strain. 1

The guide members of the frame are provided with bearings for a pair of

shafts

28, 29 which may be respectively designated as the front and the rear shaft. The

shafts

28 and 29 constitute drum shafts with which

cables

30 and 31 are connected, said cables being guided over the guide wheels at the front and rear ends of the car frame, respe'ctively. Each of the drum shafts is provided with a ratchet wheel '32 which will prevent reverse rotation of the shaft when engaged by a dog 33 which is pivoted on oneof the side members of the car frame. The dogs 33 are provided each with an upwardly extending handle 34 whereby it may be conveniently manipulated by the operator for whom a step or stand 35 is provided at the rear end of the frame. Hand wheels 36 or other means of well known construction are provided whereby the

shafts

28, 29 may be rotated by the operator for the purpose of winding the

cables

30, 31 on said shafts.

Suspended below the car frame C by the

cables

30, 31 is a scraper S which may consist of a scoop of suitable dimensions comprising a bottom member 37 having upturned

flanges

38, 39 at the sides and rear end thereof. The cables 31 leading to the rear shaft 29 have been shown as being connected with the flange 39 near the rear corners of the scoop. The cables 30 leading to the drum shaft 28 are connected with'a yoke 40, the limbs of which are pivotally connected with the side flanges 38 near the front end of the scoop. The cables 30 will thus be supported clear of any material that may be engaged by the scraper. It will be seen that by operating the hand wheels 36, the front and rear ends of the scraper may be independently raised with respect to the car or carriage. The scraper may be tilted to a .dumping position by disengaging the dog from the ratchet on the forward drum shaft 28; by disengaging the dog from the ratchet on the rearmost drum shaft the rearward end of the scraper may be lowered.

For the purpose of operating the car and the scraper a pulling cable 41 is provided, the same being connected with a winding drum or Windlass 42 which is operated by an engine or motor, conventionally indicated at 43, the manner of operating and reversing the windlass being not claimed or illustrated in detail, such mechanism being well known. The terminal ends of the pulling cable, after being guided over guide elements 44 adjacent to the ends of the track, are connected with the car and with the scraper in the following manner: The front end 45 of the cable is divided into four branches, two of which, 46, are connectedwith clevises 20 at the front ends of the side members of the car, while two other branches, 47, of the cable are connected with clevises 48 attached to the 'front 'ends of the sideyflanges 38: of the scraper. In like manner, the rearward end portion 49 of the pulling cable is divided into four branches, two of which, 50, are connected with the clevises 20 at the rearward ends of the side members of the carriage, while two other branches, 51, are connected with clevises 52 attached to the rearward flange 39 of the scraper. In this manner, when pulling stress is applied to the main cable 41 either in a forward or rearward direction, such stress will be equally transmitted to the car and to the scraper. It follows that when the scraper has been previously adjusted to dig into the ground at a certain depth it will become loaded as the carriage and the scraper are pulled in a forward direction. When a load has been accumulated the scraper may be elevated, the front end being elevated slightly above the rear end to prevent material from spilling over. The car and the scraper may now be conveyed along the track to the dumping point where the load is deposited, after which the car and scraper may be returned to the place where the excavation is being 90 made for a repetition of the operation.

It is evident that by the use of the improved device an excavation may be made quickly and effectively, and the excavated material may be conveyed to a desired dumping place within the limits of the length of the track.

Having thus described the invention, what is claimed as new, is

1. In an excavating device, a carriage, an elevated track supporting the same, drum shafts and guide wheels on the carriage, a scraper, cables connected with the scraper and with the drum shafts and guided over the guide wheels, dogs and ratchet wheels to prevent reverse rotation of the drum shafts, and means for rotating the drum shafts to wind the cables thereon.

2. In an excavating device, a carriage consisting of a rectangular frame having side members and end members, hangers connected with the side members, each hanger comprising two inverted yokes and a bridge piece connecting the same, said bridge piece bearing against the lower edge of one of the side members of the frame, the yokes being positioned adjacent to the inner and outer faces of such side member, axles extending through the side members of the car frame and through the yokes of the hangers, supporting wheels mounted on the axles within the yokes adjacent to the outer faces of the side members, and guide wheels mounted on the axles within the yokes adjacent to the inner faces of the side members.

3. In an excavating device, a carriage consisting of a rectangular frame having side members and end members, hangers connected with the side members, each hanger comprising two invertedyokes and a bridge 130 piece connecting the same, said bridge piece bearing against the lower edge of one of the side members of the frame, the yokes being positioned adjacent to the inner and outer faces of such side member, axles extending through the side members of the car frame and through the yokes of the hangers, supporting wheels mounted 011 the axles within the yokes adjacent to the outer faces of the side members, and guide wheels mounted on the axles within the yokes adjacent to the inner faces of the side members; in combination with drum shafts journaled in the side members of the frame, a scraper, and

. supporting cables connecting the scraper with the drum shafts, said cables being guided over the guide wheels.

l. In an excavating device of the class described, a carriage arranged to travel on an elevated track, drum shafts on said carriage, a scraper, a yoke connected pivotally with the scraper at the front end thereof, cables connected with the yoke adjacent to the sides of the scraper, said cables being also connected with a drum shaft on the carriage, cables connecting the rearward end of the scraper with another drum shaft on the carriage, and guide wheels mounted adjacent to the inner faces of the side members of the carriage over which the cables are guided.

In testimony whereof I affix my signature.

JAMES A. REED.

Witnesses to signature:

BARCLAY MORGAN, C. C. MORGAN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G.