US910451A - Earth-boring machine. - Google Patents

Description

G. L. BELT Z.

EARTH BORING MACHINE.

APPLICATION FILED man. 19, 190B.

Patented Jan. 19, 1909.

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, wnNEss INVENTOR Patented Jan. 19, 1909.

CHARLES L. on

CALIFORNIA.

mam-ta meme.

Specification of Letters Patent.

Patented 19 1909.

Application filed February 19, 1908. Serial No. 416,732.

To allwhom it may concern:

Be it known that I, CHARLES L. BELTZ,

citizen of'the United States, residing at Selma,

ported upon any suitable whichdiagonal braces 6, with pin-holes 6 in the county of Fresno and State of California, have invented new and useful Improvements in Earth-Boring Machines, of which the following is a specification.

My invention relates to an apparatus which is designed for the rapid boring of holes in the ground for the purpose of receiving posts and poles of all kinds which are to be set upright therein, and for other and like purposes.

It consists in the combination of reversible, turnable mechanism, in the construction and operation of cutting bits, mechanism for clearing the earth from around the top of the hole, and in details of construction which will be more fully explained by reference to the accompanying drawings, in

Figure 1 is a front elevation of my earth bonng'machine.

Fig. 2 is a side elevation of same. Fig. 3 is a view of the boring-tool. Fig. 4 is another view of the boring tool, showing revoluble scra er in place. Fig. 5 is a cross section of the ower part ofthe boring tool, showing the position of the bits.

' t is the object of my invention to provide a portable apparatus so constructed that holes may be bored vertically in the earth, either upon level or hillside, and with sufficiently powerful bits to cut earth of any degree of hardness, such as is frequently met in climates having long dry seasons; means by which the holes bored, and rapidly cleared of the excavated earth.

I have here shown my a paratus mounted upon a main frame A w 'ch may be supor desired means for transportation. Bymeans of a circular gear 2, a pinion 3 engaging said gear mounted upon the shaft 4, extending to a convenient point with relation to the working apparatus, pow r maybe applied to said shaft by a crank or otherwise to turn the working portion of the apparatus so that it may be brought into position to bore holes at any desired point with relation to the setting of the machine.

.Near one end of; the apparatus is a vertically disposed frame 5 turnably connected with the mainframe A, and by means of adapted toreceive suitable pins or otherdevices for may be accurately spaced,

the purpose. This frame may be turned to stand at any desired angle with relation to the main frame. Thus, if the contour of the land is such that the main frame stands at 'an inclination upon the surface, the frame 5 may be turned with relation thereto so as to bore avertical hole.

The turning of the vertical frame may be about the horizontal shafts 7--7 throu which power is transmitted to operate t e boring and other mechanism. The bearings of the turnable frame are in the fonn'of collars 7 upon the outside of the boxes 7 of k the shafts 7-7 and the shafts'are thus'relieved of weight and friction. A vertically guided and movable rack bar 8 has its lower by means of the pinion 12 engaging with the rack bar, the boring-shaft and connected mechanism may be raised or vdepressed. Power to operate the boring shaft is derived through a ulley 13 engagin therewith and through W 'ch the power-s aft is slidable upon afeather.

7 is a second shaft journaled in line with the shaft 7 and carrying a inion 22 which also en ages a pinion 23 of t e boring-shaft. It will. e seen that power thus applied'will rotate the pinion 21 in one direction, and the pinion 22 in the opposite direction.

19 and 20 are clutches carried respectively upon the shafts 7-7.

14 and 17 are sprocket-pinions, each connected 'with one member of its clutch, so that when the clutches are disengaged the sprockets remain stationary.

If the clutch 19is engaged, and the sprocket 14 thus caused to revolve in unison with the revolution of the shaft ower will be transmitted through a chain om the sprocket 14 to its companion sprocket 15 on the shaft 16,

and will thus revolve the shaft 16, and

through the inion 12-will move the rack bar 8 downward y, thus feeding the bozin tool downward. When the hole has been ored sufliciently deep, and it is desired to reverse the movement and raise the boringtool out of the ground, the clutch 19 is disen aged.

he clutch 20 is thrown into e agement so that the sprocket 17 will be revo ved the shaft 7 As the shaft 7 a is revolving in the opposite direction from the shaft 7 by reason of its connection through .the bevelgears 21, 22, 23 it will be manifest that power transmitted from the sprocket 17, the sprocket 18, throu h an intermediate chain, will act to reverse t e revolution of the shaft 16 and pinion 12, and thus lift the boringtool from the ground; this tool being constantly revolvin in one direction.

The shaft 1 1 t rough which power is transmitted to the borer is suitably coupled to a shaft 11 around which is formed a spiral 25, the exterior diameter of which is substantially that of the hole to be bored. At the lower end of this shaft 1 1 isfitted a suitable bit 26 which is herein shown as being in the form of a solid steel head having a suitable shank and means for connecting it with the shaft 11. In transverse section, this steel head is made rectangular or diamond shape, and it terminates in a cutting bit so that when the shaftis revolved and weight applied to it, this point will enter the'ground, and its angles will cut away the ground sufliciently to ring the actual boring tool into operation. This boring or excavatin tool is composed of cutting bits 27 made 0 the finest possible steel for the purpose. I have here'shown three of these bits mounted upon radial arms or sup orts 28 formed with the lower part of the s aft 11*. of these arms has divergent grooves or channels within which the shanks/of two of the As the two bits 2727 firmly secure in place.

bts liie.

29 are channeled pieces having the channels adapted to fit the up er'part of the bit shank, and b means of olts 30 they are These bits may be thus adjusted to extend to a greater or less distance outside of their channel supports, and the outer angle of the cutting edge of the outer bit is so placed as to cut away the earth sufiiciently to prevent its coming in contact with and wearin the bit support. avetheir cutting edges separated to a considerable extent, the third bit 27' is so located with relation to the first that it will cut away and pulverize theof material which might otherwise remam between the outer and inner cutters, and the earth thus loosened will be removed, or artially so, by the action of the spiral bla e 25. When the hole has been bored to a suflicient depth, the boring apparatusmay be withdrawn by the reversal of the move-- been excavate from falling back into the i the hole.

hole, when the bit is removed, I have shown a revoluble scraper consisting of wings 31 32, and so disposed as to be revoluble about the mouth of These win 31 may be made angular, or of a prope er shape and their acv tion will be to throw the dirt outward from The outer end of one.

the mouth of the hole, as it is brou ht -up by the spiral and revent its falling ack into the holewhen t e latter has been finished.

Having thus described my invention, what I claim and desire to secure by Letters Patent is- 1. An earth borin machine havingin com-- bination a horizonta y disposed mam frame, and a turn-table upon which it is mounted, anlupwardly extending guide frame at one end of the main frame, horizontal shafts arranged in line across one end' ofthe main frame, said guide frame having its lower portion turnably mounted upon an'axis which is coincident with the axis of the shaftswhereby the guide frame may be adjusted to stand at any desired angle with relation to .the main frame, means for holding the guide frame in its adjusted position, a boring device. guided and movable upon said guide frame, said boring device and the adjacent ends of the horizontally alined shafts havin engageable gears, and mechanism operated from said shafts by 2. In an apparatus of the character de' scribed, the combination of a main frame, a

turn-table therefor, a vertically extendin guide frame, horizontally-disposed aline shafts extending across the main frame, said guide frame having its lower ends turnably mounted on an axis which is coincident with the axis of the shafts whereby it may be turned to stand at any desired angle with relation to the 'main frame, means for holdin the guide frame in its adjusted osition, sai main frame having boxes for the horizontal shafts and said boxes havin collars on the outside formin bearings for said guide frame, a drill s aft mounted in the guide frame, operatin connections between the alined shafts an the drill shaft, and mechanism by which the drill shaft'is advanced and retracted.

3. In an apparatus of the character described, a mairi and a supplemental frame turnably'adjustable with relation to each other, said main frame having horizontally disposed alined shafts near one end and said supplemental frame having its lower portion turnably mounted on an axis which 1s coincident with that of the shafts, means for varying the an le of one frame relative to the other, means or holding the supplemental frame in its adjusted position, a boring device guided and movable upon the second frame, a rack bar loosely connected with the head of the boring bar, a inion engaging the rack, and mechanism w ereby-sai pinion maybe revolved 1n opposite directions to raise or depress the borer;

4. In an apparatus of the character de- I scribed,'a frame,- horizontally alined shafts thereon near one end, a vertical frame turn ably mounted on an axis which is coincident said shaft may be revolved'while being raised or depressed.

with that of the shaft whereby the angle of the vertical frame may be varied relative to the firstframe, means for fixing the vertical frame in its adjusted position, a rack bar guided and 'movable upon said vertical rame, a shaft mounted in the upper portion of the vertical frame and having a pinion engaging the rack bar, mechanism whereby said shaft may be turnable in,o posite directions to raise or lower the rack ar, a boring device having an u Wardly extending shaft with a head or co ar thereon, clam s or yokes upon a rack bar adapted to loose y inclose said head, and mechanism by which 5. In an apparatus of the character described, a main frame, horizontally disposed alined shafts thereon, ,a vertically disposed frame having its lower portion turnably mounted on an axis which 1s coincident with that of the shafts, a vertically disposed boring tool, a head or collar fixed upon the shaft thereof, a vertically movable rack bar carried by the vertical frame having yokes or clasps within which the collar and shaft are turnable, said horizontal shafts having bevelgears upon their adjacent ends, a bevel-gear on the boring tool shaft engaging both of said gears and throu h which the boring shaft is slidable where y motion is simulta-, neously transmitted to drive the boring device, and to reverse the second shaft.

6. In an apparatus of the character described, a vertically uided boring device andloosely guided rack ar, horizontal shafts in line, bevel-gears upon their inner ends and upon the boring bar whereby motion is transmitted to drive the boring device and the second shaft, clutches upon each of the shafts, a sprocket-wheel carried by one niember of each clutch, a journaled shaft having a inion engaging the rack bar, and sprocketwheels registerin in line with those of the previously descri ed shafts, and connecting chains whereby the engagement of one clutch around the lower end of the revoluble shaft,

mechanism whereby the shaft is rotated and simultaneously advanced or retracted, and means surrounding the boring tool and opcrating upon the surface of the ground around the hole for displacing the removed earth.

8. In an apparatus of the character described, a bonn toolincluding cutting bits, a shaft upon which said bits are carried, and a spirally disposed web around the shaft a bearing and guiding frame, mechanism by which the boring apparatus is revolved,

mechanism by which it may be raised or de pressed while being revolved, and, a device surrounding the boring tool and revoluble upon the surface and around the hole which is being made whereby the excavated earth is constantly thrown away from the opening.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

CHARLES L. BELTZ.

- Witnesses:

GEO. H. STRONG, CHARLES A. RENFIELD.

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