USRE6337E - Improvement in drills for well-boring - Google Patents

Description

PATENT' OFFICE;

JOHN M. MAY, OF .CEDAR RA'BIDS, vIowa., ASSIGNOR. To LOUIS M. BUMSEY AND MOSES RUMSFY, OF Sr. LOUIS, MISSOURI'. y

IMPROVEMNTN o RpLL-sv'roii WsLLfBomnef Specication forming'par't of Letters Patent No, 49,1279, dated :August 1,1865; reissue No. 6,887, dated Mirah-16,' 187s; 'application inedre'bruary 1o, 1815.

To all whom may concern: A

Be it known that I, JOHN M. MAY, of Cedar Rapids,Linn county, State of Iowa, formerly l of Rock county, vState'of Wisconsin, have invented a new anduseful Improvementin a Combined Rock-Drill and Pump, forming a built l tool that I call va pump-drill;=and Ido herebydec'lare that the following is a full and'exact descriptionl thereof, reference being had .to the accompanying drawings and to the letters `Iof reference marked thereon.

' lThe nature' of my invention consists, first, in connecting a. pump-drill, or a drill, to a'rope -or rod, used to operate a pump-drill, ora drill,

by means of a swivel, so constructed that a single or a double blow may be given at each descending strokeof the drill, and allow the which .a pipe or rod used to operate a drill passes, to prevent friction of the pipe or rod against the sides of the drilled rock, and to l 'keep the pipe or rod centralin the drilled hole as the drill rises and falls, and so constructed as to catch pieces of rock, tools, and other substancesthatfmay drop in to the drilled hole,

and prevent Atheir Vgetting' between the rock and the drill ;`third, a screenor.. strainer to keep thesand, pulverzedl pieces .of rock, and

coarse substances from enteringand clogging.

the pump; fourth, in combining with-a screen or strainer a guide-dan ge havingperforations, to permit water to pass to wash the bit and y keep clean the portion being drilled; fifth, in

ligure are represented as being inside a drilled hole or drilled well, thev weil part of this figure being a vertical section through -its center'. Fig. 3 is a similar view to Fig. 2, a rod and rope, instead of a pipe, being represented with Fig.

which to operate-the pump-erin. Fig. 4 is a ho 'zontal cross-section from a to b, Fig. 1

Fig. 5 is a horizontal section, showing a circu- 'lar cutting-edge of a drill from e to f, and the diameter of the drillfrom `g to h in Fig. 6.

Fig. 6 shows ,thelower end of a pump-drill put together, with Fa portion brokenaway, showing its interior. Fig 7 shows a. screen or sieve, 'td-protect. the -valve and pu'mp from being obstructed, it being a horizontal view. Fig. 8 is a horizontal cross-section from l to m inl Fig. 1, and Fig. 9 is the top of a pumpdrill connected directly'with a drilling-rod without a swivel. 'j

A is the circular member-'lof a pump-drill.

To'this member isfastened a central member, LB 0r B', ndlyliidelLD sith@ 111111119.4 @11d at '-'the'uppeien'd of tliefcyliiider is a center piece or bracket, The parts` A, B, D, and E are; screwed together or attached to cach other if'n" any substantial manner. /Gentral member B1 B, Snc., has any desired number of wings exil` tending from its center, and each wing has, in its most, perfect form, the cutting-edge of bit, beveled on one side similar to a carpenters chisel, (shown in Figs. 1 and 2,) for the purpose of giving a drill or a pump-drill a slightly-rotating motion' at 'each/ descending 'stroke yor blow, causing each succeeding blow to strike in a new place', without the necessity of rotating the drillat the' surface of the ground, as is now the method. The swivel-formed bracket Eand rod F allow a drill orpump-drill to re-4 volve, as described. The cutting-edges, bevdrill requires to be rotated from the top of 'the'A Well inthe usual manner, and the swivel, as such,- dispensed with,'and the hole through bracket E, to receive rod F,"made square, and the, rod made 'square between shoulders G andfK, for the purpose of rotating a vdrill or a pump-drill from the top of the well, and giving .'afdouble blow, as hereinafter described.

ltodiF of the swivel-bracket E and collar Gr ,constitute a'means oigiving a double `blow at each descent of a drill and rod, or at each descent of a pump-drill and rodf1rst,by the weight of the drill or pump-drill,'and, second,

by the weight of the rod, which continues 'to'- moving and fastening the collar G at any desired point on the rod. 1

On the vupward motion the shoulderK,`

striking shoulder J, causes a concussion, useful in keeping the. drill' free from becoming fast in the bottom of the drilled hole.

The circular member A has holes near its bottom or cutting edge, which holes are angular, as at c, or horizontal, as at d, in Figs. 1 and 2, and areof any desired size and shape, and are for the ,purpose of allowing the water between the wall'l of drilled rock and outside of the pump-drill to enter the drilled hole to take the place of the pulverized rock, sand, and mud, and roily water received in the pump at the descending blow, and also prevents a tendency to form a vacuum below the 'drill-pump by the'close fitting of the cutting .and trimming edge of circular member A to the wall of the drilled hole as the pump-drill rises.

'In Figs,`3 and; 6, where the cutting-bitsB/ arebeveled on both sides, and the revolving of the pump-drill is done at the top of the well, are channels or grooves 'i z' z', as in Fig. 3, made longitudinally with the outside line of the pump and drill, through the bit and cutting-edge of the member A, which expands outwardly, as shown, through which channels water nds its way under the drill as it rises.

The channels may be made of anysize,

i shape, o r number that will best accomplish the desired object, and not impairz the elicieney of the drill. Y'

A view of these channels is also seenr at t' i' i 'i in the horizontal cross-section, Fig. 5, in which the greatest diameter of the cutting edge of the member A is from e to f, and the greatest diameter of the pump-drill above the tapering portion of the bit is from' g to h, these diameters being also shown by corresponding letters in Fig. 6. l

Either holes or channels may be used through which to supply water from the space n between the pump-drill and drilled rock S, as shownA in Figs. 2 and 3, to take the place of pulverized rock, sand, and other substances taken into the pump as the pump-drill is operated, whereby the drill has less obstruction in reaching the rock to be drilled, and a cleaner surface when reached, both of which are important advantages.

A ball-valve, C, in Fig. 1, I deem the best for a sand-pump combined with a drill, though any suitable kind of valve may be used.

To prevent chips of rock, sand, or other obstructing substance from ascending andclog,

ging the valve, I use a screen or sieve, j, in Figs. l and 7, of any suitable material and texture. A coarse sieve 'of brass'wire I deem suitable.

I do not. conline myself to any particular angle or degree of expansion of the bit or lower end of circular member A of the pump-drill;

that which will be effectual and durable, and

yet allow it to rise and fall freely, will best l serve the purpose.- p

lVhen the water in the drilled hole comes suiciently nearthc top of the well, pipe N, in Fig. 2, is used as a hollow pumping and drilling rod. I also use it to convey the contents of the pumpidrill to or above the topv of the well to be discharged. Thus the drilling and pumping is carried ou at one and the same operation. Also, I use a pumping -rod and suitable valves inside the pipe N, at a proper distance below the surface of the water in the Well, to make an auxiliary pump, when the interior diameter of the pipe N is suitable for that purpose. This auxiliary pump I operate by attaching the upper end of this pumpingrod firmly over'the top ofthe pipe Nv toa stationary beam or other suitable fixture; and the process of pumping the contents out of the pipe N, as they ascend from the pump-drill, is accomplished as the pipe descends at each blow of the drill; or I operate this auxiliary pump-independently by a lever or other suitable means, yet as an auxiliary tothe pumpdrill at the bottom of the drilled hole. This greatly aids the process of sinking a well by boring or drilling rock, but cannot be used unless there is a suitable abundance of water.

-When the pump-drill is operated by means of rod F and rope It, in Fig. 3, and cylinder D, which may be of any suitable length and capacity, is filled with sand vand pulverized rock, the pump-drill is withdrawn and the con-- tents discharged, requiring much less timethan when a sand-pump and drill are used sep arately.

In Figs. 2 and 3 is a spring-guide, in which O is a collar, rounded inside to allow a rod or pipe to passy freely, and' has attached to it springs s ss s s s s s, curved substantially as shown, so that they will pass obstructions, and are sufficiently strong to sustain their own weight-and that of the collar by a gentle pressure against the wall of the drilled rock, and

serve to guide the rod or pipe and keep it central vin the well, whereby greater efficiency is added to the drill, and the breaking of the cornersor edges ofthe drill avoided, by keeping y it perpendicular and in line.

Sockets or couplings Q, in Figs. 2 and 3, that connect joints of pipe N and joints of rod F, one above and one below the spring-guide, move 'the spring-guide up and down in the well, and as many as may be necessary to keep the pipes or rods in line should be used. Also, any suitable additional number of springs s may be added to eachk collar to forma receptacle, opeiiing upward, to catch fragments of rock, tools, or other article that may fall into the well, and thus prevent their getting wedged in between the drill and wall of drilled rock, whereby loss of time or of a drill, or both, may be saved.

In Letters Patent granted to me on the 23d day of August, 1859, No. 25,208, for improvements in pumps, I show a spring-guide for keeping a. pump-pipe in the center of a drilled Well. I now apply and combine a spring-guide with a rock-drill, as herein described.

I am aware that a perforated drill-valve and I flexible hose have been used in combination,

and I donot claim such combination, nor any combination including a exible pipe or hose. What I claim as my invention, and desire to secure by Letters Patent, is 1. The combination of the parts E, F, G, and K, forming the swivel, and arranged sub-- stantiall y as herein described, for giving a single or double blow to the drill.

2. The combination of the spring-guide O s 19 with the drill rod or pipe, as and for the purpose set forth.

3. The screen or strainer of wire-gauze, in

combination with a. pump drill or tube, substantially as and for the purpose specified.

' 4. The combination of a screen or strainer with a perforated or cutting guide-ange, A, as and for the purpose set forth. y

5. The combination of a screen or strainer with a bit, B or B,as andl .for the purpose specified.

Witnesses:

SAML. KNIGHT, ROBERT BURNS.

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