US1871601A - Method of and apparatus for making holes in the ground - Google Patents

Description

Aug. 16, 1932. GATY 1,871,601

METHOD OF AND APPARATUS FOR MAKING HOLES IN THE GROUND Filed March 26, 1931 2 Sheets-Sheet 1 3 mentor LEE $.GATY

A; Cittomeg Aug. 16, 1932. L S Y 1,871,601

METHOD OF AND APPARATUS FOR MAKING HOLES IN THE GROUND Filed March 26, 1951 2 Sheets-Sheet 2 Zmventor LEE S.GATY

Patented Aug. 16, 1932' UNITED STATE S PATEN F C LEE s. GATY, or conunnusyonro METHOD OF AND APPARATUS FOR MAKING HOLES IN THE GROUND Application filed. March 26, 1931. Serial N 525,408.

This invention relates to a method of and apparatus for making holes in the ground to receive posts or poles of various sorts.

Heretofore such holes have been dug or bored with a great expenditure of time and money and the object of the present inven tion is to make a better hole than can be dug or bored and do the ob much more quickly m; and cheaply thairby any means or method heretofore employed asfa'ras I am aware.

Other objects will appear from the d1sclosure.

The invention is embodied in the example herein shown and described, the feature of 'noveitybeingfinally claime 1 in the accompanying drawings Flgure l is a side elevat1on, w1th some small parts omitted, of one form of the ap paratus according to the invention showing the same as carried by a boom the latter being broken off. r 1

Fig. 2 is an elevation looking toward the right hand side of Fig. 1. v

Fig. 3 is a plan view looking at thelower end of Fig. '2. I

Fig. 4 is a view, on a larger scale, partly in section and partly broken out of thel earth penetrating tool and the removed from its frame. Fig. 5 is a side view ofthe the tool.

7 Fig. 6 is a the tool.

upper end of plan view of the upper end of fication.

Fig. 8 is a side view of the tool with parts omitted, shown in Fig. 7, removed from the hammer and dipper stick.

Fig. 9 is a detail in plan view of the upper end of the modified tool.

Fig. 10 is a detail on a larger scale showing the swivel connecting means between the tool and stick.

Fig. 11 is a view illustrating a post hole and the effect on the walls thereof produced by the tool herein described for forming the same. 7

Referring first to the views, Figs. l to 6 inclusive, the character 12 thereon designates the earth penetrating tool which generally is pneumatichammer pivoted to them as at 21a rebound or tool Fi 7 is aside view like Fi 1 of a modi' O i b nose 12? is secured to the lower end of the body 12 by means of a tapered pin 13 that can be driven, out to permit removal for sharpening'or replacement of the nose. The nose a slightly tape-red hollow body terminating at. its business end in a conical nose 12 ,Said

At its upper end the tool isprovided with perforatedears 14 by means of'which the tool can be'hung to slotted ears 15 on the lower end 'ofthe' cylinder 16 of the pneumatically operated hammer 17. The slot'sare unalined and theconnection permits the feed of the tool and also a rise slightly in detach ing the tool from'the ground. The pne'u matic hammer is of the ordinary kind and needs no particulardescription herein.

At its upper end the tool has fixed therewith a projecting collar 18 notched'at dia- V metrically opposite sides to be engaged by strips 20 fixed. on the backs of U-bars 19that, with'cross 'pieces'20 at the top, constitute-a frame for containing and vertically guiding the tool and hammer when in operation.

Thelower ends of said frame bars have ejectingdevice composedv of two parallel rings'22 and23 with a series of coil s rings 24between' them. The upper ring 23 is provided diametrically with opposednotc'hes 23 to engage the U-shaped bars 19 of the guiding frame.

The springs 24 are ea chheld in position be tween therings by means-of a threaded bolt 25 secured by a jam nut to the lower ring, the

upper 'ri'ngbeing' held yieldingly down on the springs'by nuts 26. The perforations for the bolts 25 are made large enough to permit the movement of the upper ringtoward the lower ring so thatthe springs can be compressed; The centralo'penings of the rings 22 and 23 permit the tool, in operation, to

ass through them and whenthe toolhas' een driveninto the earth to nearly the full length thereof and whenthe collar strikes the upper ring. 23 thesprings24 are compressed with the effect that the tool is lifted a boom 29 carried on any suitable vehicle e (not shown) so that the hole forming apparatus can be transportedto the place of the job and the tool lowered to the point on the surface of the ground where the hole is to be made. The pipe for supplying compressed air to operate the hammer is shown at 16 i Referring now to Figs. 7 to 10 inclusive,

the apparatus is shown as adaptedforuse in' connection with the parts of a power shovel.

" near-and beyond the surfaces of the walls of the hole suggest the hard packing at and near the surface of such walls. The advanf In this application the guiding frame, 1ncluding the frame members 19, before referred to, is dispensed with and the dipper stick 30 of the power shovel used. The rebound or ejector device is securednear the upper end ofthe tool. Y

The tool is swivelly connected with the end of the dipper stick by means of a fork or y yoke '31 having its tangs perforated to engage pins 32 on the head of the tool; and said' fork is provided with a shank 33tl1at' can turn in bearings-in plates :3435 on the end of the dipper stick. The said shank is secured by a suitable pin 36 in its said bearings.

The pneumatic hammer is supplied with operating compressed air through pipe 37 and the hole forming apparatus is supported for raising and lowering and swinging by a cable 38 running over a pulley 39 on boom .40, such as before described. p I In Fig. 11 is depicted. the effect of making a post hole in the ground with and according to the method involved herein. Theheavy darkened lines and graduation ofsuch lines tage of this packing is that when the tool is removed, the hole is left clear of obstructions and readyto receive the post to beplaced and secured therein. The hole will usually be.

thereby compressing the earth from the locus of the hole into the earth bounding such locus and yieldingly resisting the operation of the driving tool when the hole is nearing completion.

2. In apparatus for. forming a hole in the earth for a post or the like, an earth penetratingitool having a tapered body portion and a pointed lower end, a projecting shoulder at its upper end and retracting spring means carried atthe upper end of said tool and means for driving said tool into the earth. .5 H I 4 3. In apparatus for forming a hole in the earth for a post or the like, an earth penetrating tool having a body portion and a pointed lower end, andflmeans for driving said tool into the earth and spring means associated with said tool for detaching the same from the walls of the hole when the same is substantially formed.

4. In apparatus for" forming a hole in the earth'for. a post or the like, an earth penetrating tool having a tapered body portion and a pointed end, and'means for driving said tool into the earth and spring means acting on said tool for detaching the same from the walls of the hole when the same is substantially formed.

- 5. In apparatus for forming a hole in the earth for a post'or the like, an earth penetrating tool having a'body'portion and'a pointed lower end, means for driving said tool into the earth, and spring means located at the upper end'ofrthe tool and actuated by the tool when the hole is nearly formed, said spring means, tending to detach the tool from'the earth whenthe hole is substantially completed. I

6. In apparatus for forming a hole in the V earth for a post hole or the like, an earth penetrating tool having a body portion and a pointed lower end, said penetrating tool being a male counterpart of the form of the hole to be made, and means for d'rivingsaid toolinto the earth, a frame in which'saidtoolis reciprocated, said frame carrying spring means located therein to retract the tool whenthe hole is nearly completed.

' LEE S. GATY.

made of slightly larger diameter than the 7 post so that if desired grout or other materials can be filled into the space around the foot of the post and tamped to hold the post in erect position and preserve the material thereof at its foot.

The forms and proportions of the parts can be changed without departing from the 7 gist of th'e invention asclaimed.

WhatIclaim iszfl 1. The method of forming a hole in the earth consisting in driving a tool of the form of the holeinto the locus of the hole and

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