US1515506A - Excavating device - Google Patents

Description

Nov. 1924; Q 1,515,506.

w. s. McNALL I EXCAVATING DEVICE Filed Aug. 19, 1922 s Sheets-Sheet 1 INVHITOR A'TI'ORNEY I WITNESSKS W. S. M NALL EXCAVATING DEVICE Nov-.

Eiled Aug. 19, 1932 3 Sheets-Sheet 2 INVWTOR WITNESS E5 ATTORNEY v 1,515,506 -w. s'. M N ALL EXCAVATING memos Filed Aug. 19, 1922 s sheets-sham. 5

WITNESSES ATTORNEY Patented Nov. 11, 1924.

UNITED STATESPATENT 0 WILLIAM S. MCNALL, 0F SALINA, KANSAS.

FFICE.

EXCAVATING DEVICE.

Application filed August 19, 1922. Serial No. 582,951.

and the like into a movably mounted hopper and subsequently discharging the same into a wagon or the like trailing beside the machine. I

An important object is the provision of a device of this character which is provided with means for manually controlling the position of the receiving hopper from which the dirt or other matter is subsequently discharged into the conveyance or transporting vehicle. r

An additional object is the provision of a device of this character which is operated as for instance by means of compressed air.

A further object is'the provision of an apparatus of this character which will be simple and inexpensive in manufacture, eflicient and durable in use, positive in operation and a general improvement in the art.

With the above and other objects and advantages in view the invention consists in the details of construction to be herein- 1 after more fully described and claimed and illustrated in the accompanying drawings, in which:

Figure 1 is a side elevation of the device,

Figure 2 is a plan view,

Figure3 is a cross section, Figure 4 is a fragmentary rear elevation Figure 5 is an enlarged side elevation of what is shown in Figure 4.

Referring more particularly to the drawings the letter A designates asuitable truck upon which the device may be mounted and this truck may be motor driven or otherwise provided with propelling means which may be used for driving the moving parts of my device. a a

Mounted upon the truck A is a container or casing which is open at its top and within the bottom part of which is journaled a fan 11 having its shaft 12 extending through the bottom of the casing and carrying a pulley 13 driven by means of a belt 14: which derives i Power om s me c venient portion of the truck mechanism. The numeral 15 designates braces which support the casing 16 of the fan structure and it will be observed that this fan constitutes, in effect, a blower. Leading from the inlet 17 of the fan casing is a flexible tube 18 at the entrance of which ismounted a digger mechanism 19 and it is preferable I that this tube 18 be wire wrapped so as to insure durability while not interfering with flexibility. The lower portion of the tube is equipped with a handle 20 by'means of which it may be moved into the desired position.

The digger mechanism 19 is operated by compressed air which is supplied thereto through a flexible pipe 21 extending along and carried by the tube 18, compressedv air being supplied to this pipe by any suitable pump 22 mounted on the tractor and driven by the motor thereof.

Vertically slidably mounted within the casing 10 is a hopper 23 which is open at its top and which is suitably guidably mounted in the casing so as to have unobstructed ver tical movement. Leading fro-m the outlet 2 1 of the fan casing 16 is a pipe 25 which discharges into the movable hopper.

A very important feature is: the provision of means for raising and lowering this hopper and this means consists of a longitudinally extending shaft 26 carrying a crank handle 27 and having gear connections 28 with a pair of transverse shafts 29 which carry sprockets 30 over which are trained chains 31 which are trained over other sprockets 33 mounted at the top of the frame. On the shafts 29 are drums 35 to which are secured and about which are wrapped flexible members 36 connected with the hopper.

In the operation of the device it will be seen that the truck is driven to the place where its use is desired and the pump mechanism for supplying the compressed air is thrown into operation. The compressed air passing through the pipe 25 operates to i drive the digger mechanism 19 and the dirt or other material dug up thereby ,will be sucked up through the tube 18 to the fan casing 16 and discharged therefrom through the pipe 25 into the hopper 23, the posltion of the hopper being regulated by actuation of the crank handle 27 which controls the drive shaft 26 of the hoisting mechanism.

'The bottom of the lloppgl, is provided with vantage in this feature and that is: that when the device is traveling along without being in operation the hopper may be lowered so as to be disposed as close to the fan casing as possible thereby lowering the center of gravity so as the device will not be top heavy. To control the position of the chute, I provide brackets 37 on the top and the bottom of the frame, which brackets support sprockets 38 about which is trained a chain 39 connected at 40 with the chute. The lower sprocket shaft carries a crank handle 41 so that it may be turned for moving the chain 39 and varying the position of the chute.

From the foregoing description and a study of the drawings it will be apparent that I have thus provided a simply constructed and consequently inexpensive excavator mechanism which may be readily mounted upon a truck and driven by the motor thereof whereby to dig material of any kind and discharge it into a suitable conveyance. Owing to the simplicity of the construction and the fewness of the parts it is apparent that'there is nothing to get out of order and that the device should have a long life and satisfactorily perform all the functions for which it is intended.

While 'I' have shown and described the preferred embodiment of the invention it is of course to be understood that I reserve the right to make such changes in the form, construction and arrangement of parts as will not depart from the spirit of the in vention or the scope of the subjo'ined claims. Having thus described my invention I im;

1. An excavator mechanism comprising a casing adapted to be mounted upon a truck, a blower fan mechanism mounted within the casing, means driven from the truck for driving the fan mechanism, a flexible tube connectedwith the inlet of the fan mechanism, a digging device carried by the tube at the entrance thereof, means operated by the truck motor for driving said digging mechan sm, a hopper mounted within said casing ljnto which the fan mechanism discharges and provided with an outlet chute, and gear operated Windlass mechanism for raising and lowering the hopper.

2. An excavator mechanism comprising a casing adapted to be mounted upon a truck, a blower fan mechanism mounted within the casing, means driven from the truck for driving the fan mechanism, a flexible tube connected with the inlet of the fan mechanism, a digging device carried by the tube at the entrance thereof, means operated by the truck motor for driving said digging mechanism, and a hopper mounted within said casing into which the fan mechanism discharges and provided with an outlet chute, means for raising and lowering the hopper with respect to the casing, and means for raising and lowering the chute.

3. An excavator mechanism comprising a casing adapted to be mounted upon a truck, a blower fan mechanism mounted within the casing, means driven from the truck for driving the fan mechanism, a flexible tube connected with the inlet of the fan mechanism, a digging device carried by the tube at the entrance thereof, means operated by the truck motor for driving said digging mechanism, and a hopper mounted within said easing into which the fan mechanism discharges and provided with an v outlet chute, and means for raising and lowering the hopper with respect to the casing, consisting of a control shaft provided with a crank handle, a pair of transverse shafts geared to said control shaft and carrying sprockets, other sprockets mounted at the upper edges of the casing, chains trained about the corresponding sprockets, drums on said transverse shafts, and flexible members secured to and wrapped about the respective drums and connected with the hopper. I

4. An excavator mechanism comprising a casing adapted to be mounted upon a truck, a blower within the casing, means driven by the motor of the truck for operating the blower, a flexible tube leading into the inlet of the blower and carrying a digging mechanism at its entrance end, compressed air operated means driven by the motor of the truck for actuating the digging mechanism and a vertically adjustable hopper mounted within the casing and into which the blower discharges, a discharge chute leading from the bottom of the hopper and pivotally mounted at its lower end, upper and lower sprockets on the casing, a chain trained about said sprockets and connected with the chute, and means for turning one sprocket to move the chain.

In testimony whereof I affix my signature.

I 7 WILLIAM S. MoNALL.

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