US2044878A

US2044878A - Portable drill rig

Info

Publication number: US2044878A
Application number: US22806A
Authority: US
Inventors: John C Curtis
Original assignee: Cleveland Rock Drill Co
Current assignee: Cleveland Rock Drill Co
Priority date: 1935-05-22
Filing date: 1935-05-22
Publication date: 1936-06-23
Anticipated expiration: 1953-06-23

Description

une 23, 1936. L Cum-.S y 2,044,878

PORTABLE DRILL RIG Filed May 22, 1935 'planing'.

F. I .l0/WV C. Cuff/. 1 lINVENTOR ATTORNEY 'Patented .lune 23, i936 UNITED STATES ron'rAnLE mum. me

John C. Curtis, Garfield Heights, Ohio, assigner to The Cleveland Rock Drill Company, Cleveland, Ohio, a corporation of Ohio Application May Z2,

12 Claims.

This invention relates broadly to rock drills, but more particularly to a portable supporting and guiding apparatus therefor.

One object of this invention is to produce an improved rock drill supporting and guiding apparatus. p

Another object of this invention is to produce a rock drill supporting frame pivotally connected to a carrying frame ywith a simple and eii'icient mechanism operable for causing the pivotal movement of the former relative to the latter.

Another object of this invention is to produce a drilling apparatus including a carrying frame having a rock drill supporting frame slidably and;

pivotally mounted thereon, withamechanismslidable with the supporting-frame and operable for causing the pivotal movement of the latter.

Other objects and advantages more or less ancillary to the foregoing and the manner in which the various objects are attained reside in the specic construction `and aggroupment of the elements peculiar to this structure, in the claims of which there are assembled certain specific combinations of parts and specic constructions z5 indicative of the scope and spirit of the invention.

In the drawing which illustrates the invention. Fig. 1 is a side elevational view of the 'entire a`p' paratus illustrating the drill supporting frame in one position.

ao' Fig.2 isaviewsimilartoli'ig.1,illustratingthe drill supporting frame in another position.

Fig. 3 is a top -plan view of the assembly shown in Fig. 2. Fig. 4. is an enlarged cross sectional view taken $5 in a plane indicated by line I-l in Fig. 1. Fig. 5 is an enlarged cross sectional view taken in a plane indicated by line 5--5 in Fig. 3.

Referring to the drawing in which like symbols designate corresponding parts throughout the 40 several views, Il represents a substantially U- shaped carrying frame vmade of tubular elements, and having brackets i I secured to the end portion of the side arms thereof,l each of the brackets being Iadapted to receive a supporting wheel I2. 45 The cross arm I3 of the carrying ,frame has secured thereto a bracket Il adapted to plvotally receive a caster wheel Lf.

. Slidably mounted on each of the side arms of the carrying frame I0, there is a housing I6 formed 50 with an arcuated seat or stationaryjaw I1. 'I'.o

the housing IGwis pivotally secured by a pin I6', a jaw I9, which is disposed in opposition to the jaw I1 to form an opening therebetween adapted to receive the side ann of the frame l0. Op-

55 eratively associated with the jaws l1 and "i9,

' casing 3l. Transversally disposed with respect 1935 Serial No. 22,896

2l by which there is a bolt 20 carrying a nut the jaws may be clamped to the side arms of the frame for securing the housing I6 against slidable -movement relatively thereto. Above the jaws Il and l5, each of the housings I6 is provided with a tapered or conical socket 22. v Rotatably mounted within the conical counterbore 22, there is a correspondingly shaped and` centrally apertured member 23 having one end portion oi the side arms of a substantially U- shaped supporting -rame 24 welded thereto, afording thereby a pivotal and slidable connection between the carrying frame l0 and supporting frame 24. Disposed between the two housings IE, there is a cross bar 25 having the end porl tions thereof reduced as at 26 to form a shoulder 21 in abutting engagement with the members- 23, the reduced portion 26 extending through the A latter and the housing I6 to receive a nut 28 by which the members 23 may be clamped within their respective socket 22 against rotation relatively thereto. One of the housings l 6 is provided with an upwardly extending projection 29 having a relatively small casing 30 pivotally secured to the free end portion thereof by a nut 3|. This casing is formed with a cylindricalilat bottom bore 32 having a worm gear 33 rotatable therein, and provided with longitudinally disposed bore 34 Dadapted to receive the shank 35 of a screw 36. This shank ls locked against rotation relative to the gear 3l by a key 21, and has,the outer end portion thereof extending through the casing 3u to receive a nut 36, by which the screw is locked against longitudinal movement relative to the 35 tothe bore 32, the casing I6 is formed with a relatively smaller bore 3! having a worm lll rotatable therein in operative engagement with the A teeth of the worm gear 33. This worm has one square end portion protruding from the casing Y 36 to receive a crank handle 4I by which the worm may berotated. The screw 36 is rotatably mounted Vthrough a stationary nut 42, rigidly secured within one end portion of a tube I3. The other end of the tube 43 is pivotally connected to the upper portion of one of the side arms of the frame 24 by a suitable connection 44.

Pivotallv secured to the supporting frame 2l by a connection 45, thereisadrilling mechanismcom- `prising Aan elongated `frame 46 having a feeding 50 i mechanism contained therein and capable of imparting feeding motion to a rock drill 41, which is slidably mounted on the elongated frame 46.

In the operation of the apparatus, when it is desired to slide the drill supporting frame 24 on the vcarrying frame Ill, the nuts 2| may be loosened, thus loosening the jaws l1 and I9 of the housings i6, and permitting the slidable movement ofthe latter on the side arms of the carrying frame I0. In this instance, the jack mechanism being carried by one of the housings IB and the supporting frame 24, will slide with the latter. When it is desired to cause the pivotal movement of the supporting frame, the nuts 28 may be loosened, thus permitting the rotation of the members 23 relative to the conical counterbores or sockets 22. By operating the crank handle 4|, rotation may be imparted to the screw 36 due to the rotation of the worm 4D and worm gear 33, thus causing the longitudinal movement of the screw 36 into or out of the tube 43 and the consequential upward or downward pivotal movement of the supporting frame 24.

From the foregoing, it will be seen that due to the no vel method of securing the jacking mechanism to one of the connections between the frames I and 24, the jackingv mechanism Ais slidable with the latter and consequently is always inoperable position irrespective of the slidstrictive or confining and it is to be further understood that various rearrangements of parts and modiiication of structural detail may be resorted to without departing from the scope or spirit o the invention as herein claimed.

I claim: i

1. In a portable drill rig, the combination of a substantially U-shaped carrying frame, connections slidably carried by the side arms of said frame, a substantially U-shaped tool supporting frame pivotally and slidably secured to said carrying frame by said connections, and a mechanism carried by one of said connections for slidable movement therewith and including a screw threaded element pivotally connected to said tool supporting frame and operable for causing the Pivotal movement of thelatter relative to said carrying frame.

2v. In a portable drill rig, the combination of a carrying frame, a substantially U-shaped tool supporting frame, connections carried by said carf rying frame, each o! said connections comprising carrying frame including two side members dis-` posed in parallel alignment, a connection slidably mounted on each of said side members, a tool supporting frame connected by said connections to said carrying frame for slidable and pivotal movement between said'side members', a mecha-` lnism carried by one of said connections for slidable movement therewith, said mechanism including a screw threaded element operatively connected to said supporting framefor imparting.

pivotal movement thereto, and means included in said connections for locking said supporting frame and consequently said mechanism against slidable movement relative to said carrying frame.

4. In a portable drill rig, the combination of a carrying frame including two side members disposed in parallel alignment, a connecting member slidably mounted on each of said side members,

a tool supporting frame carried by said connect- 5 ingv members for slidable movement therewith, a bearing within each of said connecting members by which said supporting frame is pivotally connected to said carrying frame, and a mechanism pivotally carried by one of said connecting members for slidable movement therewith, said mechanism including telescopically mounted elements one associated with said supporting frame and operable for imparting pivotal movement thereto irrespective of the sliding movement thereof.

5. In a portable drill rig, the combination ofa carrying frame including two side members, a connection slidably mounted on each of said side members, a tool supporting frame including -two side elements, one end of each said side elements being slidably and pivotally connected by said connections to said side members, and a mechanism associated with said tool supporting frame operable for imparting pivotal movement thereto, said mechanism being carried by one of said connections for slidable movement therewith relative to said carrying frame.

6. In a portable drill rig, the combination of a carrying frame, bearings carried by said frame.

a substantially U-shaped tool supporting member pivotally connected by said bearings to said carrying frame, a mechanism carried by one of said bearings including telescopically mounted elements one associated with said supporting member and operable for imparting pivotal movement thereto, and means forming a part of said bearings for holding said member in adjusted position.

7. In a portable drill rig, the combination of a carrying frame, bearings carried by said frame, a tool supporting frame, a drill carried by one end portion of said supporting frame, the other end portion of said supporting frame being pivotally connected to said carrying frame by said bearings, and a mechanism carried by one of said bearings associated with said tool supporting frame for normally preventing the pivotal movement thereis of, said mechanism being selectively operable for imparting pivotal movement to said supporting frame.

8. In a portable drill rig, the combination of a carrying frame including two side arms, an individual connecting member carried by each of said side arms, a. bearing within each of said connecting members, a -tool supporting frame pivotally connected to said carrying frame by each of said bearings, and a mechanism including a duality of telescopically mounted elements one pivotally connected to one or said .connecting members above said bearing and the other pivotally connected to said supporting frame, said mechanism 60 being operable for imparting pivotal movement to said supporting frame.

9. In a portabledrill rig, the combination of a carrying frame including two side arms, an individual connecting member carried by each of said 65 side arms, a bearing within each of said members.

a tool supporting frame having a drill carried by one end portion thereof, the other end portion of said supporting frame being pivotally connected' by said bearings to said carrying frame, and a 70 mechanism including a duality of telescopically mounted elements one connected to one of said connecting membersiand the other connected to said supporting frame near the drill carrying end portion thereof, said mechanism being operable 75 for imparting pivotal movement to said supporting frame.

10. In a portable drill rig, the combination of a carrying frame including two side arms, a connecting member carried by each of said side arms, a bearing within each of said members, a tool supporting frame having a drill carried by one end portion thereof, the other end portion of said supporting frame being pivotally connected to said carrying frame by said bearings, a brace between one of said connecting members and the drill carrying end portion of said supporting frame, said brace normally preventing the pivotal movement of said supporting frame, and means operable for selectively varying the length of said brace, im parting thereby pivotal movement to said supporting frame.

11. In a portable drill rig, the combination of a .carrying frame including two side members, an

individual connecting element carried by each of `oisaid. bearings, and a mec of said connecting elements'associated with said 5 said side members, a bearing within each of said connecting elements, a tool supporting frame pivotally connected tosaid carrying trame by each carried by one tool supporting frame for normally preventing the pivotal movement thereof said mechanism being operable for imparting pivotal movement to said supporting frame.

12. In a portable drilling rig, the combina-v 10 tion of a carrying frame including two side members, a connecting element carried by each of said side members, a tool supporting frame pivotally connected to said carrying frame by said connecting elements, a mechanism 'carried by at 15 least one of said connecting elements associated with said tool supporting frame for imparting pivotal movement thereto, and means for locking said frames against pivotal movement.

JOHN C. CURTIS. 20