US367783A - Machine - Google Patents

Description

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J. S. BROWN. WELL DRILLING AND PIPING MACHINE. N0. 367,783. y Patented Aug. 9, 1887.

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N. PETERS, PhmmLixhngrzpher, washington. D. C.

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WELL DRILLING AND PIPING MACHINE.

No. 367783. v.Padzented Aug. 9,l 1887.

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J. s. BROWN. WELL DRILLING AND. PIPING MACHINE.

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WELL DRILLINGjAND PIPING MACHINE.

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J. S. BROWN.v WELL D'RILLING AND PIPING MACHINE.

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WBLL DRILLING AND PIPING MACHINE.

1\0.l3"6"7,783. Patented Aug. 9, 1887.

UNITED STATES PATENT Y OFFICE.

JACOB S. BROVN, ,OF CARLISLE, PENNSYLVAIA, ASSIGNOR OF ONE-HALF "ISO W'ILLIAM E. AND JOHN R. MILLER, BOTH OF SAME PLACE.

WEVLL DRILLlNG AND PIPING MACHINE.

SPECIFICATION forming partof Letters Patent No. 367,783, dated August 9, 158857. Application ala Juiya, leas; serial No. 201,804. (Nominada To all whom it may concern: f

Be it known that I, JACOB S. BROWN, al citizen of the UnitedStates, residing at Carlisle, in the county of Cumberland and State of Pennsylvania, have invented certain new and useful Improvementsin Combined Oil and Gas fell Drilling and Piping Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, 1o such as will enable others skilled-inthe art to which it appertains to make'and use the same. My invention relates to oil-well drilling` and piping machines; and it consists in the construction and arrangement of the parts,which will be more fully hereinafter described, and pointed out in the claims.

lleretofore in machines of this class the power as well as the operating parts of the device have been constructed separate and apart, zo horse-power being generally used for running the mechanism, and when said mechanism has been unitedly constructed the changing or reversing of the running parts accomplished at different points of the machine,thereby re- :5 quiring extra labor to keep it in desired working order.

One object of my invention is to provide a device having all the parts necessary to wellboring combined inl one machine, the levers 3 for operating the various parts being situated at one portion of the 'device'adjacent' to the operating end of the drill.

A further object of my invention is to provide a drilling-machine in which the power is transmitted from one shaft to another by positive gearing, the desired motion of said gearing in relation to the main driving-shaft being accomplished by clutches and controlled by suitable brakes which are actuated by levers. A still further object of my invention is to provide a machine wherein a main drivingshaft is mounted transversely thereof, upon which a series of gear of necessary speed impart motion, received'directly'from the eugine, to a portion or all of the parts, which isv governed bythe result desired to be accomplished.

A still further object of my invention is to` provide a head-block carrying a sliding crank- 5o pin which gives two Vstrokes to the drill at one revolution of the said block, and which is adapted to be converted into a single operating-crank whenA desired.

A still further object of my invention is to providea rope-centering device in connection with the drillreel,whereby the ropeis adapted to be always fed directlyto the head-block on its central line of motion. I

A still further object of my invention is to provide an adjustable pulley arranged in a 6o folding derrick, whereby means are provided for shifting the working apparatus in connection therewith to give room for some other portion of the machine to have full operation.

A still furl-her object of my invention is to provide a drilling-machine having a covering frame-work, a portion of which is extensible and adapted to receive a covering for the protection of the workmen at the fore part of the 7c machine during inclement or cold weather, thereby providing simple and effectivemeans for the shelter of the machinery and of the operator.

A still further object of my invention is to provide a folding derrick and stack and a top frame-work or covering formed partially telescopic, whereby all the parts may be so adjusted as to temporarily decrease the proportions of the-machine, providing meansv for So bringing it within the regulation size yfor transportation and for convenience generally.

A still further object of my invention is to provide means, in connection with the drill or auger, whereby pipe may be driven by the S same mechanism and operation thereof as is used in drilling, thereby rendering the use of complicated and superfluous mechanism unnecessary. i

A stillfurther object of my invention is to 9o provide means in the form of an incline in connection with the wheels of the machine, as well as means for extinguishing the fire in the furnace, whereby the machine may be safely used for gas-well boring, and when premonitions of the presence of the gas appear the machine can be rolled away down the incline and the fire quenched, thereby preventing the firing of the escaping gas.

A still further object of my invention is to 10o construct the parts of the machine in a simple and efiicient manner, readily understood and liaudled, easily transported and set up in working position, safe, convenient, and accessible at all points, and the entire mechanism adapted to be operated from one point.

I attain these objects by the mechanism illustrated in the accompanying drawings, wherein like letters and iigurcs of reference indicate similar parts in the several views, and in whichw Figure I is a side elevation of myiniproved machine with the upper parts folded down. Fig. 2 is a view similar to Fig. l, from the op posite side of the machine. Fig. 3 is a top plan view of the device with the roofing or top framework bioken away. Fig. 4 is a front elevation of the machine with the dcrrick hiokeii away. Fig. 5 is a top plan View of the machine wit-li the frame-work in place.

Fig. 6 isa side elevation of a portion of the machine mounted upon an incline and ready for gas-well boring. Fig. 7 is a detail view in front elevation of the head-block and gearing, showing to one side thereof the block for converting said head-block into a single crank. Fig. S is a side elevation ol' the said headblock and gear-wheel. Fig. 9 is a plan View of the drill-reel-operatiiig gear, the clutch and operating-lever, and the inner wheel and brake, also slowingthe connection. Fig. 10 is aside elevation ofthe iiinei` wheel and brake shown in Fig. 9.' Fig. 1]. is a front elevation of the adjustable pulley and a portion of the folding derrick. Fig. l2 is a detail perspective View of the'driltauger with a tube-driving collar secured thereto.

A indicates the side bars of the frame, which rest upon and are secured to the holsters l) B, to which in turn the axles C C ofthe wheels D D are secured.

Mounted upon suitable supplemental bolsters, E E, are longitudinal upright beams F F, in which the shafting of the device is mounted on both sides ofthe machine, sliort longitudinal beams G G G being also secured to the framework described in the interior portion of the hed-work, and which are adapted to form bearings for the inner ends of the shorter portions of theshafting. This bed frame-work may be constructed of metal, preferably cast, and may be placed in various positions to suit the desired arrangement of the mechanism.

Extending vertieall y upward freni the beams F F are uprights or supporting-pillars II II II 1I, which extend up and support the roofing framework, heing connected to the side bars I I thereof. This top frame work is eonstructed of tubing, preferably gas-pipe, and the side bais or tubes I I are connected to the end tube, I', by couplings it', the front portion of the frame being unconnected and the ends of the side pipes I I left open.

Connected to the front portions of the two side bars A A are two beams, J J, which are inclined toward each other, as shown in Fig. 4, being strengthened by suitable braces, jj,

at their lower portions, said braces being connected at their other ends to the supplemental beams F F. These upright inclined beams J J extend sonic distance above the side tubes I I ofthe rooting framework, the said tubes in their front portions being suitably supported by braces i' i', attached to the said uprights J J and surrounding the side tubes I I. As heretofore described, the uprights J J extend a short distance above the roofing frame-work or the side tubes I I, andare cut off. Inside of the said uprights J J two uprights or standards, J' J', continue upward, carrying out the same gradual inward inclination as the uprights J J. These standards J J' have their outer sides plaiied off vertically to correspond and engage with the inner sides of the outer uprights J J, which in like manner are planed vertically for a short distance. The said standards J' J' extend. upward, as heretofore dcscribed, their height depending upon the class of work to be executed, and have suitable tiev braces, j'j', and a sheare or pulley, j?, mounted in their uppermost portion.

In tlielower portion ofthe uprights erstandards J' J' a sliding pulley, K, is mounted, the shaft 7.: of which is secured to the said uprights by suitable means. A shifting-lever, K', pivoted on. a bracket, 7.1', secured to one of the u priglits J', engages with a groove-extension, 7.?, formed on one side of the said pulley, said shifting-lever K having a bifurcated projection, 7.1, engaging with the grooved extension.

To one side ot' the pulley or sheave K is a stop or guard, 7.1', in the forni of a collar rigidly secured to the shaft 7.1, and mounted at such adistaiicc from either side ol' the uprights as to permit the pulley l( to be slid into the central portion of thc shaft 7.1, midway between the two said uprights. By this means the pulA ley, when not required for use, can be shifted to one side and leave a clear working space for the other parts of the drilling apparatus.

The two sets of uprights or standards J and J' are pivoted by means of a rod or pintlc, L, which passes through the said uprights, has screw -threaded ends, and is provided with elaniping-nutsll. Suitablebracesj'j' connect with the lower standards, J J, at or about the point where the pivoted rod or piiitle L passes through the said standards, and extend down on an incline and are secured at their other ends to the supplementary beams F F. The front portions ofthe side bars or tubes I I are engaged by an extensible frame, M, the ends ol' which slide into the ends of the side tubes I I, and are adapted to be pushed in the said tubes, or drawn out,as may be desired. Th is extensible frame may he constructed of suitable material, preferably iron wire of the required diameter, and bent into shape from one piece. To the front portion of this frame M is niorably connected a supplemental frame, M', which is adapted to form a roofing for this portion of the machine, and when in position for use rests against the upper standards, J'J. 'Ihe free end of this fi'aiiie M' is formed with a loop or ICC IKO

depression, m, through which the ropes may pass during their operation. This frame M is adapted to receive a covering of canvas or other suitable material applicable for the use required, which may extend down around the front and sides of the frame M, and be carriedl to the ground and be secured, thus forming a covering or protection for the operator during inclement weather. f

On the top of the side bars I.I andend bar, I', is placed a suitable roofing material, N, which extends out slightly over the farthest projecting portions of the machinery below, thus protecting the working parts ot the device froniinjnry by the weather. The said roofing N is provided with alongitudinal slot, n, and a transverseslot, a', which slots connect with each other and provide means for allowing` the ropes or lines to pass therethrough while in operation. On the rear portion of the roofing N, at or about its central portion, a support, n2, is mounted, upon which the standards J J rest when folded down.

In the rear portion of the machine a vertical boiler and furnace, O, is mounted, being supported at its lower portion between the.

beams A, and provided with suitable braces and stays, as o o o o', secured to various parts of the machine. This boiler has a jointed stack, O', whichis hinged at the point o, and having a spring-catch, o3, on the reverse side. By this means the stack may be lowered or folded down and secured when raised.V for working. When the said stack is folded down, it is engaged by the circular retaining metallie clasp or ring o4, which is formed with a hinged joint and adapted to inclose the said stack-and temporarily secure it in a stationary position. y

In the forwardportion of the machine a vertical engine, P, is mounted upon a suitable bracket,'P, which is supported by the bed frame-work of the device. This engine is connected with the boiler lO `by means of a suitable steam-feeding pipe, P, having a throttle or other suitable eut-off valve, p, mounted therein, and adapted to regulate the flow of steam to or from the engine. A pipe,p, forms the steamexhaust, running into stack O of the boiler and allowing the surplus steam to escape therethrough. This engine yhas suitable pitmen, p", operatedin a manner well understood, said pitmen extending downward and engaging with acrank-shaft, S, mounted in the bed'frame-work, and having afly-wheel, W, on its outer end, adjacentto the sidebeam, F. A spur-wheel, l, is mounted on this shaft S', which meshes with another spur-wheel, 2, on the main shaft S, which shaft extends across the entire transverse width of the bed-frame, being boxed at each end in the beams F -F. This wheel 2 is of larger diameter, and consequently of slower speed, than the wheel 1, allowing the engine to be run at a rapid rate of speed to attain the necessary power, said powerbeing transmitted tothe main shaft S through the medium of the slower wheel 2,

thus adapting the rapid running of the engine P to the required power and speed necessary to the regnlarand efficient running of the working mechanism.

On the opposite side of the framework, opposite to and in front of the engine P, a counT ter-shaft, S, is mounted, on which a master gear-wheel, 3, is secured, which meshes with a spur-wheel, 4, on the main shaft S, and by which the said wheel 3 is given motion. This master-gear 3 is four times aslarge as the spur- Wheel 4, and consequently has one-fourth the motion ofthe said spur.y On this countershaft S2, and ahead of the master-gear 3, the head-block R is mounted and keyed. This head-block R is constructed with slideway r therein, which receives a sliding block, r', which has a wrist-pilar, connected thereto, on which a removable sheave or pulley, r3, may be mounted for some uses, and adapted to be removed when it may be desired to dispense with its use. In both ends of the said slideway r are mounted two cushions, r4 r4, of rubber or other suitable material, which ease the blow of the sliding block/r in its movement in the slideway o'. This head-block R is keyed directly to the end of the countershaft Si, and has the direct motion therefrom. To every single revolution of the said shaft S2 the wrist- )in 1' in connection with the slidinoa block o", gives two strokes to the drill or auger, the slide-block r always sliding upward from the lowest portion of the slideway o' in the head-block It.

Vhen it is desired to convert thehead-block into a single operating-crank, a block, Pt', as seen in Fig. 7, is inserted in the slideway r, under the sliding block 1", and the wrist or crank pinil is held inatemporarily-xed position and a single stroke to every revolution Qt' the shaft s2 given to the drill. This construction provides forthe use of the drillwhen a stratum of broken rock or soft material is struck, when it is not necessary to give the full effect of the double stroke of the drill or auger, as in drilling through a bed of rock.

On the one end ofthe main shaft S, a spurwheel, 5, is mounted, which is'of equal diameter and time as the spur-wheel 4t, said wheel 5 meshing with another master gear-wheel, 6, of the same diameter and time as the mastergear 3. The spurs 4 and 5 are each provided with clutches 7 and S, which clutches adapt their respective spurs to be thrown into or ont of mesh with their connecting wheels. These clutches 7 and S have circular grooves 9 and l0, which are engaged by the points of levers ll and l2, said levers being pivoted to a bracket, I3, secured to the vside frame,F. Rods 14 and 15 are connected to the said levers 11 and l2, which run to the front portion ofthe machine, and engage with operating- levers 16 and 17, mounted in a rack 18, composed of a series of curved bars, said operating-levers having smaller levers engaging with the sectors formed in said curved bars, for a purpose which'will be readily understood.

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4 swf/a3 The master-wheel t imparts motion to the drill reel or drum T, being in direct connection therewith. Inside of the master-gear (5 is a wheel, V, which forms a guard for one side of the drill-reel T. A clutch, 19, is provided, one half of which is connected to the sides of the said mastergear 6 and the other half to guard-wheel \V, and by means ofwhich clutch the gear 6 can be thrown out of or into colmection with and impart motion to the said drill-reel. On the outer side of the gear 6 a recessed flange, 20, is provided adjacent to the shaftS, which has journal bearings inthe two vertical brackets V V, secured on each side ofthe machine to the side beams, F F, and upon which shaft the said gear is mounted. This recess is engaged by a bifn rcated arm, 21, which is mounted upon and extends upward from a rod,22, which is mounted in the side of the bed-frame and extends to the front portion of the machine and adjacent to the levers 16 and 17, where it is provided with an operatinglever,23. In raising orlowering this lever 23, which normally rests in a plane parallel to the plane ofthe front bolster of the machine, the gear G is thrown out of or into connection with the wheel \V. This wheel IV has a peripheral recess, which is en gaged by a brake, 2-1, which is constructed of suitable thin strap metal. One end of this brake 2t is secured to a metallic strip, 25, attached to one of the supplemental bolsters F, and the other end is engaged by a rod, 26, which extends to the front of the machine and is provided with an operating-level', 27, which is arranged and supported in a manner similar to the levers land 17.

The drillreel T extends across the entire transverse width of the machine, and has another guard-wheel, \V'*`, mounted ou the end thereof opposite to the wheel IV.

In the upper portion of the brackets V 'V shaft,S,is mounted in the same vertical plane as the shaft S. This shaft C has mounted thereon the sand-pump reel U. A spur-wheel, 2S, is mounted on one end of thc shaft S, which meshes with the mastergear and is one-fourth the size of the said gear, and consequently runs four times as fast. On the side of the reel adjacent to the spur 2S a wheel or disk,\V", having a yflat periphery, is mounted, which acts as agnard for the reel at this point, and on the other side ot' the reel in like manner a guardavhcel,\V", is mounted. Theshaft S is mounted in a vertically-sliding box, 2t), Fig. 2, on the side adjacent to the spur 2S. On one side ofthe vertical bracket V a projeetion, 0,is formed,to which the elbow of a bellcrank lever, S1, is pivotcd, the one arm, 3L, of said lever being pivoted to an arm,33, con neeted tothe sliding box 2[),and the other arm, 3.1-, of said lever 31 having a rod, 35, secured thereto, which passes down on an incline to the front of the machine, and is engaged by an operating-lever, 36, arranged adjacent to and in a manner similar to the levers 16, 17,

and 27. By this means the spur 2S may be thrown out of mesh with the master-gear 6, and the use of the sand-pump reel U be dispensed with, if not desired to be operated. Two arms, 37 37, extend outwardly from the upper portion of the bracket V, and thence inward toward the reel U, and have a semicireular brake, 40, formed of strap metal, sccured to the ends of the said arms 37. \Vhen the spur 2S is thown out of gear,consequently raising the wheel or disk YV, the said disk or wheel is thrown up against the brake ,t0 and the revolution of the reel 'II immediately stopped.

Secured to the center of the forward sup plemental bolster, E,is a rope-guide, .53,which is placed at the center ofthe said bolster and on a direct line with the wrist-pin r2, and on a level with the rope on the drill-rcel T. The edges of this rope guide are flared on the rear side thereof, so as to form an easy passage for the rope without danger of cutting the same. y

By this means the rope from the drill-reel is always fed on astraight and direct line to the wrist-pin r2, no matter from what point ot' the reel it is unwinding, always preserving its straight feed without deviation.

In Fig. 12 I have illustrated an appliance t0 be used in connection with the auger 517er drill for driving tubes in a driven well. This consists, essentiall \,f of a metallic collar, 55, which is held in place on the auger by aseries ofset-screws, 56, as shownfour in number. This device is operated by the head-block crank R in the same manner as the drill itself,

the end of the auger 5ft fitting in the end of the tube, and the collar 5.3 striking the upper edge thereof at each stroke of the wrist-pin rl on the head-block.

In Fig. 6 I have also illustrated an incline, 57, to be placed under the wheels D of the machine to adapt it to be used for gas-well boring, the highest point ofincline being situated at the forward or drilling end el' the apparatus. Suitable blocks or chucks, 5S, are placed under the wheels to keep the machine in a stable position. As shown in dotted lilies, a steam-jet, 59, having connection with the steam-pipe of the boiler, is placed in the furnace and adapted to extinguish the iire, being supplied with a suitable valve. \Vhen a premonition is given ot' the prevalence of gas,

the valve of the jet 5t) is opened and the fire extinguished, and the blocks or elmcks 58 knocked from under the wheels I) and the machine allowed to roll back down the incline 57 and out of the way ofthe escaping gas. By this means firing of the gas and injury to the machine are avoided.

In addition to the drill or augeri-t, asherctofore described, a sand-pump, (SG, and screw are used in connection with the machine, as in other machines of this class, the auger or drill having a rope, (SS, of any required length, attached thereto, and the sand-pump is con' neeted to a rope, G9. These ropes are wound IOO IIO

upon the reels T and U, and engage with the to another by means of horsepower; or the A horse-power.

several parts of the machine in a manner which will be hereinafter described.

Vhen the operation of drilling is commenced, the rope 68 from the reel T is placed in the vguide 53, and thence under lhe'sh'eave or pulley r3, on and up over the sheave or pulley jz in the top portion of the derrick. Vhen the hole has been sufficiently started and the tools fed out their full length into the earth or rock, the drill and sand-pump alone are brought into operation in a manner Asimilar to the operation of machines of this class.

If during the operation of the machine it is desirable to use any tool other than that engaging with the pulley K, the said pulley is pushed to one side, as heretofore described,. and full sway and an nnimpeded space allowec for operation of the other parts.

By means ofthe arrangement of levers 16, 17, 23, and 27 and Y36, at one end of the machine, the whole mechanism, including the engine, can be operated by one workman. The

parts to which the levers are connected and' operate can be thrown outor into gear or motion, which renders lthe machine economical in its action as to the saving of time and labor. The parts maybe thrown out of gear and their imparted motion stopped by the brakes applied where necessary, thus preventing injury to the machine by avoiding a too rapid ascent of the drill or sand-pumps.

A further advantage of this machine is the head-block crank, which is convertible into either a single or double stroke crank, which provides for a necessary change of operation of the machine whentoo rapid strokes of the -drill are unnecessary when a soft stratum of earth or broken rock is struck, which, if ,worked too rapidly, would chuck the drill or otherwise injure the machine.

`This machine may be drawn from one place wheels D D may be constructed in the form of traction-Wheels or surrounded with a Y'suitable traction-belt, and be driven directly from the engine and dispense entirely with the use ,o f In applying this tractive force well-known mechanical means will be used in a manner similar to a traction-engine. By this means the machine is rendered convenient. As all the parts are combined, they will all be transported at one and the same time.

Suitable boxings are applied to the shafts wherever needed, as well as supports and braces for the various parts of the machine.

It is obvious that many minor details in the construction and arrangement of the parts might be made and substituted for those shown and described without in the least departing from the nature and principle of my invention.

Having thus described my invention, what I claim as new, and desire to secure by Ilet- 1. In a combined well drilling and piping machine, the combination of the drill and sand-pump reels and their gears, the main shaft, the counter-shaft having a double-acting head-block crank, the gears connecting said shafts, and a series of levers and clutches constructed and arranged for controlling the operationsof said shafts andreels, substantially as described. l

2. In a combined Well drilling and piping machine, the combination of the supporting frame-work, the drill'and sand-pump reels, the main shaft, the counter-shaft having a doubleacting head-block crank, the gears for operating said shafts and reels, the clutches, the brakes, and the devices for operating said clutches and brakes,substantially as described.

3. In av combined well drilling and piping machine, the combination of the supporting frame-work, a main shaft provided with spurs or gears, the counter-shaft provided with the head-block crank and master-gear, the crankshaft having a gear meshing with a spur on t-he main shaft, the lower reel-shaft having a master-gear meshing with a Spur or gear on said main shaft and operating the reels, and clutches and levers for separating or uniting the gears and allowing them to run together or independently of each other, substantially as described.

4. In acombined well drilling and piping machine, the combination of a supporting frame-work, a main shaft mounted therein, a crank-shaft operated directly by the engine, a counter shaft carrying a head-block crank having two strokes to asingle revolution thereof, and the drill and sand-pu mp reel-shafts,said shafts all being directly connected by i'neshingspurs and master-gears, portions of which being adapted to be temporarily disconnected from ythe main shaft by means of clutches operated by rods and levers, substantially as described.

5. In acombined well drilling and piping machine, the combination,with the main shaft, carrying spur-gears and operated by the crank or engine shaft, of sand-pump and drill reel shafts mounted one above the otherin the same vertical plane, intermeshing gears operating said shafts from the main shaft, and clutches and a lifting elbow-lever secured to rods operated by hand-levers for connecting and disconnecting said parts', substantially as de scribed.

6. In a combined well drilling and piping machine,the combination, with the main shaft and spur-gears thereon and a counter-shaft, of a revolving head-block carrying a sliding crank adapted to give two strokes to one revo lution,mounted on the end of the saidcountershaft, and a block adapted to be inserted under the sliding erank-pin and convert the entire crank from a double to a single acting crank, substantially as described.

7. In acombined oil and gas well drilling and piping machine, the combination, with the main shaft and the drill and Vsand-pump IOO reels', of suitable guard wheels and disks mounted on said reels, and circular and semicircular strap-metal brakes engaging with said guard wheels operated by suitable levers grouped in the front portion of lthe machine, substantially as described.

S. The combination, with suitably supported drill and sand-pump reels or drums, cach provided with an iniermeshing gearwhcel at one end, of devices for engaging and disengaging the gear-wheels of said drums or reels, consisting of an elbow-lever, a connecting-rod, anda hand-lever, substantially as described.

9. The combination, with the drill and sandpump reels, arranged in Vertical alignment and provided with an intermeshing gear-wheel at one end of each, and a clutch-controlled gear-wheel for imparting motion thereto, of devices for engaging and disengaging the upper from thc lower gear-wheel, and devices l'or stopping their motion, substantially as described. y

10. In a combined'oil and gas well drilling and piping machine, the combination, with the main shaft and the drill and sand-pump reels, of the sand-pump-reel shaft mounted in a movable boxing at one side, said boxing having a depending arm, a bcll-crank lever connected to said arm and pivoted in the vertical support, and a rod running to the forward part oi" the machine operating the said bellcrank lever to tilt the sand-pump reel and throw it o'utof gear,substantiall y as described.

11. In a combined oil-well drilling and piping machine, ihe combination of a double-aeting head-block crank carrying a wrist-pin, to which the rope may be attached direct, a removable sheave or pulley adapted to be mounted on said wrist-pin, and a detachable block adapted to be inserted under the sliding block of said wrist-pin, substantially as described.

12. In a combined oilvwell drilling and piping machine, the combination, with the drillreel rope and head-block crank, of a metallic guide secured to one of the frame-beams and adapted to guide the drill-rope from thedrillreel in a central line to the head-block crank, substantially as described.

13. The combination, with the supporting bed-frame, ol' a folding derrick formed in two overlapping and foldable sections, and a single rod or pinile having screw-threaded ends and passing entirely through and forming the `joint of said sections and provided with clampnuts for securing and rigidly holding the said sections in position,substantially as described.

lll. In a combined oil and gas well drilling and piping machine, the combination, with a supporting bed frame-work supporting the operating parts, of a roofing frame-work constructed ol'gas-pipe, and a covering having a longitudinal and transverse slot therein l'or the passage of the operating-ropes, substantially as described.

l5. In a combined oil and gas well drilling and piping machine, the combination, with the supporting bed frame-work having the several operating parts mounted therein, and ol' a roofing frame-work adapted to receive a covering, ol' a telescopic rooling in the front portion of the machine sliding in the open ends ofthe side pieces ofthe gas-pipe forming the rooiing frame work, and au extension hinged to said telescopic roofing adapted io receive a cover or awning, substantially as described.

1G. ln a combined oil-well drilling and piping machine, the combination, with the l'olding derrick, ol' a sliding pulley mounted in the lower portion of the upper section ol' said derriek and adapted to be folded down with said section, and a lever for sliding said pulley to one side, whereby the tools attached to the rope passing over said pulley may be lmoved to one side and out of the way ol' the operation of the tools on the rope passing through the top sheave, substantially as described.

17. ln a combined oil and gas well drilling and piping machine, the combination, with the bed frame-work supporting the several working parts, of an extensible telescopic rooting covering said working parts and the forward end oll the machine to protect the workman, the foldingderriek and smoke-stack adapted to be folded in dii'l'erent directions and rest on the roofing, and means for supporting and securing the several parts, substantially as described.

In testimony whereof Iafllx my signaiurein presence of two witnesses.

JACOB S. BRO\VN.

XV i tnesses:

.ToirN ZTNN, S. H. GoUnD.

IOO

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