US2958514A - Mine drilling machine - Google Patents

Mine drilling machine Download PDF

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Publication number
US2958514A
US2958514A US859882A US85988259A US2958514A US 2958514 A US2958514 A US 2958514A US 859882 A US859882 A US 859882A US 85988259 A US85988259 A US 85988259A US 2958514 A US2958514 A US 2958514A
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Prior art keywords
lee
drilling machine
drilling
filed dec
sheets
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US859882A
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Arthur L Lee
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Consolidation Coal Co
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Consolidation Coal Co
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
    • E21B7/025—Rock drills, i.e. jumbo drills
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
    • E21B19/084—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods with flexible drawing means, e.g. cables
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
    • E21B7/022—Control of the drilling operation; Hydraulic or pneumatic means for activation or operation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/17—Rotary driven device adjustable during operation relative to its supporting structure

Definitions

  • This invention relates to mining machines and more particularly to a drilling machine especially designed for use in underground mines or tunnels for drilling holes at various locations in the mine or tunnel walls and roof.
  • the drilling tools are usually mounted on adjustable supporting structures such as swingable booms.
  • adjustable supporting structures such as swingable booms.
  • the present invention contemplates improvements over such known types of drilling machines in that the drill function is effected by a unitary self-contained machine.
  • a novel guiding and supporting structure for a drilling tool wherein the drill guide frame is firmly held against the working face during the drilling operation thereby minimizing vibration and rendering the entire machine relatively steady.
  • the machine of the present invention is flexible in operation having a wide range of adjustment and is relatively simple and rugged in design, and well adapted for its intended use.
  • An object of the present invention is to provide an improved supporting and guiding structure for a work supporting element and improved feeding and adjusting means therefor.
  • Yet another object is to provide an improved adjustable support for a drilling implement including a guide member for the drilling implement which is firmly held against the working face during the drilling operation to thereby hold the supporting structure steady.
  • a still further object is to provide improved means for feeding the drilling implement toward the work and for constantly urging the drill guiding frame against the face of the work during the drilling operation.
  • Yet another object is to provide an improved drill guiding frame along which a drill carriage is mounted for movement back and forth with respect to the work.
  • Still another object is to provide an improved driving means for a drilling tool and improved means for guiding the drilling tool during the drive thereof.
  • a further object is to provide an improved mining machine having improved fluid operated and adjusted supporting and guiding elements and embodying an improved fiuid system.
  • Another object is to provide a means to propel the intermediate centralizer back and forth along the guide member.
  • Yet another object is to provide an improved mining machine having novel arrangements and combinations of parts.
  • Figure 1 is a diagrammatic side view of embodiment I showing the drilling implement comprising the supporting structure and guide frame mounted on a boom structure of a mobile mining machine and showing in dotted lines various positions of adjustment of the drilling implement.
  • Figure 2 is a side elevational view of the drilling implement illustrating the adjustable supporting structure and guide frame with the guide frame in retracted position.
  • Figure 3 is a top plan view of the supporting structure and guide frame, with the guide frame in retracted position.
  • Figure 4 is an enlarged vertical section taken along the line 4-4 of Figure 3, illustrating a portion of the feeding means.
  • Figures 5 and 6 taken together, constitute a side elevational view of the supporting and guiding frame structure, with the guiding frame in fully extended position and illustrating the means for constantly holding the guide frame against the work during drilling operation.
  • Figure 7 is a cross section taken on line 7-7 of Figure 4 showing the drive for the sprocket shaft.
  • Figure 8 is an enlarged cross section taken on the line of Figure 5, showing details of the guide frame and the mounting for the driving motor.
  • Figure 9 is an enlarged fragmentary view of the rear portion of the supporting frame along which the guiding frame is guided.
  • Figure 10 is a cross section taken on line Ill-1G of Figure 9.
  • Figure 11 is an enlarged detail view showing the sliding carriage.
  • Figure 12 is a cross section taken on the line 1212 of Figure 11.
  • Figure 13 is an enlarged detail view showing the forward portion of the supporting frame, illustrating the front bearing mounting for the drilling implement.
  • Figure 14 is a cross sectional view taken on the line 1414 of Figure 13.
  • Figure 15 is a longitudinal section taken on the line l515 of Figure 12.
  • Figure 16 is a developed vertical section taken on line 16-46 of Figure 14,
  • Figure 17 is a detail vertical section taken on line 17-l7 of Figure 10, illustrating the flexible bearing mounting for the splined drive shaft.
  • Figure 18 is a diagrammatic view illustrating the hydraulic system.
  • Figure 19 is a plan view of embodiment II illustrating the supporting and guiding structure mounted on a boom structure.
  • Figure 20 is a side elevation view of the and guiding structure shown in Figure 19.
  • Figure 21 is an enlarged View in central longitudinal vertical section taken on the line 2i21 of Figure 19 with parts shown in full.
  • Figure 22 is an enlarged detail vertical section taken on the line 22-22 in Figure 19 illustrating the brake for the sprocket drive shaft.
  • Figure 23 is a horizontal section taken on line 23-23 of Figure 22 and also illustrating the brake and sprocket arrangement.
  • Figure 24 is an enlarged vertical section taken along the plane of Figure 21 illustrating the rearward portion of the guide member and the sliding drill carriage.
  • Figure 25 is a cross section taken on the line 25-25 of Figure 24.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)

Description

Nov. 1 1960 Filed Dec. 16, 1959 A. L. LEE 2,958,514
MINE. DRILLING MACHINE l9 Sheets-Sheet 1 lNVENTOR Arr/mrLIae BY ma L;, ATTORNEY Nov. 1, 1960 A. L. LEE 2,958,514
MINE DRILLING MACHINE Filed Dec. 16, 1959 19 Sheets-Sheet 2:
A RIMY O! E mi? W m m M M; g M km A 2 N mm mm 3 E 8 O \IN irswfzi Nov. 1, 1960 Filed Dec. 16, 1959 A. L. LEE 2,958,514
MINE DRILLING MACHINE l9 Sheets-Sheet 3 1 ATTORNEY Nov. 1, 1960 A. L. LEE 2,958,514
MINE DRILLING MACHINE Filed Dec. 16, 1959 19 Sheets-Sheet 4 II I I l v .Y E; 1, 53 l 53 3 & g 29 IN VEN TOR.
Nov. E, 1960 A. L. LEE 2,958,514
MINE DRILLING MACHINE Filed Dec. 16, 1959 19 Sheets-Sheet 5 INVENTOR.
ArfarLLee 5 jag/72; a
Nov. 1, 1960 A. L. LEE 2,958,514
MINE DRILLING MACHINE Filed Dec. 16, 1959 19 Sheets-Sheet 6 IIIIIIIIA\ a 'IIIIIIIIIIIIIA INVENTOR Arz76 urL.Lee 52.4 J I? q ATTORNEY Nov. 1, 1960 A. L. LEE 2,958,514
MINE DRILLING MACHINE Filed Dec. 16, 1959 19 Sheets-Sheet 7 E y MW INVENTOR. Art/furfl. Lee
BYSQQ-ZJ QA MflZI-ZZM Nov. 1, 1960 A. L. LEE 2,958,514
MINE DRILLING MACHINE Filed Dec. 16, 1959 19 Sheets-Sheet. 8
m g 9 2 rml Q w a o E g h...
r co 2 9 Q N" N E INVENTOR L; ATTORNEY Nov. 1, 1960 A. 1.. LEE 2,958,514
MINE DRILLING MACHINE Filed Dec. 16, 1959 19 Sheets-Sheet 9 fzwzzim A r222 24 L. L 99.
a m i J m Ev 2 Q M A Qw mm m QWN, m QM. N\% W km: 5 H
\N QE 9 Nov. 1, 1960 A. L. LEE 2,958,514-
MINE DRILLING MACHINE Filed Dec. 16, 1959 19 Sheets-Sheet 12 19 3/8 "wi l ll 3/8 302 mnnwh m luwvw 3 I 3/7 0 5 I 1220822202: AZ'ZZZM" L.Le.
9 QJEM 4 Nov. 1, 1960 A. L. LEE
MINE DRILLING MACHINE Filed Dec. 16, 1959 19 Sheets-Sheet 14 12272622202: A?ZZ2urL.L 9e. 9 5% J Mai His AZZorzzeg.
Nov. 1, 1960 A. L. LEE 2,958,514-
MINE DRILLING MACHINE Filed Dec. 16, 1959 19 Sheets-Sheet 15 1220627302 ArZZz up L.L e6.
Nov. 1, 1960 A. L LEE MINE DRILLING MACHINE l9 She etS-Shee't 16 Filed Dec. 16, 1959 [220622202 ATZZZ z12L.L 6
9 5ZWA J M; L
Hes/12202 2299.
Nov. 1, 1960 A. L. LEE
MINE DRILLING MACHINE l9 Sheets-Sheet 17 Filed Dec. 16, 1959 INVEN'I'OR.
ARTHUR L. LEE
J Mac HIS ATTORNEY Nov. 1, 1960 A. L. LEE
MINE DRILLING MACHINE Filed Dec. 16, '1959 19 Sheets-Sheet 18 FIG. 43
INVENTOR.
ARTHUR 1.. LEE fi HIS ATTORNEY Nov. 1, 1960 A. L. LEE
MINE DRILLING MACHINE l9 Sheets-Sheet 19 Filed Dec. 16, 1959 a uTu IN V EN TOR.
E E U L N L. m T W T W A R S A H United States Patent 2,953,514 Patented Nov. 1, i960 ire IVIINE DRILLING MAHINE Arthur L. Lee, Columbus, Ohio, assignor to Consolidw tion 'Coal Company, Pittsburgh, Pa., a corporation of Pennsylvania Filed Dec. 16, 1959, Ser. No. 859,882
30 Claims. (Cl. 255-47) This invention relates to mining machines and more particularly to a drilling machine especially designed for use in underground mines or tunnels for drilling holes at various locations in the mine or tunnel walls and roof.
This application is a continuation-in-part of my copending applications Serial Number 659,843, filed May 17, 1957 and Serial Number 579,254, filed April 19, 1956. Application Serial Number 659,843 is a continuation-in-part of application Serial Number 169,752, filed June 22, 1950, now abandoned and application Serial Number 579,254 is a division of application Serial Number 169,752, filed June 22, 1950, now abandoned.
In conventional mining drills of the mobile type the drilling tools are usually mounted on adjustable supporting structures such as swingable booms. As a result of the substantial overhang of the boom structure in front of the base, considerable vibration is set up within the machine during the hole drilling operation. The present invention contemplates improvements over such known types of drilling machines in that the drill function is effected by a unitary self-contained machine. There is also included a novel guiding and supporting structure for a drilling tool wherein the drill guide frame is firmly held against the working face during the drilling operation thereby minimizing vibration and rendering the entire machine relatively steady. The machine of the present invention is flexible in operation having a wide range of adjustment and is relatively simple and rugged in design, and well adapted for its intended use.
An object of the present invention is to provide an improved supporting and guiding structure for a work supporting element and improved feeding and adjusting means therefor.
Yet another object is to provide an improved adjustable support for a drilling implement including a guide member for the drilling implement which is firmly held against the working face during the drilling operation to thereby hold the supporting structure steady.
A still further object is to provide improved means for feeding the drilling implement toward the work and for constantly urging the drill guiding frame against the face of the work during the drilling operation.
Yet another object is to provide an improved drill guiding frame along which a drill carriage is mounted for movement back and forth with respect to the work.
Still another object is to provide an improved driving means for a drilling tool and improved means for guiding the drilling tool during the drive thereof.
A further object is to provide an improved mining machine having improved fluid operated and adjusted supporting and guiding elements and embodying an improved fiuid system.
Another object is to provide a means to propel the intermediate centralizer back and forth along the guide member.
Yet another object is to provide an improved mining machine having novel arrangements and combinations of parts.
These and other objects and advantages of the invention will, however, hereinafter more fully appear.
in the accompanying drawings to be taken as part of this specification, I have clearly and fully illustrated two embodiments of my invention, in which drawings:
Figure 1 is a diagrammatic side view of embodiment I showing the drilling implement comprising the supporting structure and guide frame mounted on a boom structure of a mobile mining machine and showing in dotted lines various positions of adjustment of the drilling implement.
Figure 2 is a side elevational view of the drilling implement illustrating the adjustable supporting structure and guide frame with the guide frame in retracted position.
Figure 3 is a top plan view of the supporting structure and guide frame, with the guide frame in retracted position.
Figure 4 is an enlarged vertical section taken along the line 4-4 of Figure 3, illustrating a portion of the feeding means.
Figures 5 and 6 taken together, constitute a side elevational view of the supporting and guiding frame structure, with the guiding frame in fully extended position and illustrating the means for constantly holding the guide frame against the work during drilling operation.
Figure 7 is a cross section taken on line 7-7 of Figure 4 showing the drive for the sprocket shaft.
Figure 8 is an enlarged cross section taken on the line of Figure 5, showing details of the guide frame and the mounting for the driving motor.
Figure 9 is an enlarged fragmentary view of the rear portion of the supporting frame along which the guiding frame is guided.
Figure 10 is a cross section taken on line Ill-1G of Figure 9.
Figure 11 is an enlarged detail view showing the sliding carriage.
Figure 12 is a cross section taken on the line 1212 of Figure 11.
Figure 13 is an enlarged detail view showing the forward portion of the supporting frame, illustrating the front bearing mounting for the drilling implement.
Figure 14 is a cross sectional view taken on the line 1414 of Figure 13.
Figure 15 is a longitudinal section taken on the line l515 of Figure 12.
Figure 16 is a developed vertical section taken on line 16-46 of Figure 14,
Figure 17 is a detail vertical section taken on line 17-l7 of Figure 10, illustrating the flexible bearing mounting for the splined drive shaft.
Figure 18 is a diagrammatic view illustrating the hydraulic system.
Figure 19 is a plan view of embodiment II illustrating the supporting and guiding structure mounted on a boom structure.
Figure 20 is a side elevation view of the and guiding structure shown in Figure 19.
Figure 21 is an enlarged View in central longitudinal vertical section taken on the line 2i21 of Figure 19 with parts shown in full.
Figure 22 is an enlarged detail vertical section taken on the line 22-22 in Figure 19 illustrating the brake for the sprocket drive shaft.
Figure 23 is a horizontal section taken on line 23-23 of Figure 22 and also illustrating the brake and sprocket arrangement.
Figure 24 is an enlarged vertical section taken along the plane of Figure 21 illustrating the rearward portion of the guide member and the sliding drill carriage.
Figure 25 is a cross section taken on the line 25-25 of Figure 24.
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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3078932A (en) * 1957-11-08 1963-02-26 Rogers Iron Works Company Drilling machine
US3101006A (en) * 1960-10-13 1963-08-20 Ingersoll Rand Co Drill mounting
US3124204A (en) * 1964-03-10 Face drill
US3146836A (en) * 1959-12-16 1964-09-01 Consolidation Coal Co Mine drilling machine
US3150723A (en) * 1962-04-02 1964-09-29 Joy Mfg Co Rotary coal drill
US3162253A (en) * 1961-01-06 1964-12-22 Joy Mfg Co Drilling device
US3181630A (en) * 1962-07-03 1965-05-04 Joy Mfg Co Blasthole drill
US3205951A (en) * 1963-02-01 1965-09-14 Galis Mfg Company Face drilling machine
DE1217318B (en) * 1963-03-13 1966-05-26 Louis Laurent Chappuis Device for setting rock bolts
US3402777A (en) * 1967-07-03 1968-09-24 Watson Mfg Company Kelly stabilization systems
US3508619A (en) * 1968-08-13 1970-04-28 Gardner Denver Co Hose guide for rock drills
US3667552A (en) * 1970-06-03 1972-06-06 John Edward Gordon Cable feed device
US3684035A (en) * 1970-04-24 1972-08-15 Macgordon Wills Cable cylinders
US3752242A (en) * 1971-11-16 1973-08-14 E Gremillion Hydraulically actuated cavity forming device
US4035969A (en) * 1975-06-04 1977-07-19 Bruno Casagrande Telescopic columns of machines for making foundations, and the telescopic columns thereby derived
US20100074044A1 (en) * 2006-11-02 2010-03-25 Sandvik Mining And Construction Oy Cement silo structure for mining machine
US20100294570A1 (en) * 2008-02-20 2010-11-25 Fredrik Saf Boom arrangement for a rock drill and rock drill rig
US20170275947A1 (en) * 2014-08-18 2017-09-28 R.N.P. Industries Inc. Improved self-supporting pneumatic hammer positioner with universal joint
US9995091B2 (en) * 2013-06-19 2018-06-12 Epiroc (Nanjing) Construction And Mining Equipment Co., Ltd. Rock drill telescopic arm and rock drill

Citations (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1077856A (en) * 1912-09-28 1913-11-04 Ebenezer R Ray Pneumatic feed and return rock-drill.
US1092583A (en) * 1909-10-18 1914-04-07 Charles H Locher Apparatus for rock-drilling.
US1195108A (en) * 1916-08-15 Metal weather-stkip
US1878036A (en) * 1928-06-11 1932-09-20 Goodman Mfg Co Drilling mechanism
US1992129A (en) * 1933-04-03 1935-02-19 Silas Mason Company Inc Apparatus for rock tunneling
US2060814A (en) * 1932-08-18 1936-11-17 Jeffrey Mfg Co Drilling machine
US2143105A (en) * 1936-04-21 1939-01-10 Cleveland Rock Drill Co Feeding mechanism for rock drills
US2144627A (en) * 1931-11-16 1939-01-24 Sullivan Machinery Co Drilling apparatus
GB531465A (en) * 1939-03-31 1941-01-06 George Herbert Dowty Improvements relating to hydraulic actuating systems, for aircraft and the like
US2288542A (en) * 1939-04-19 1942-06-30 Sullivan Machinery Co Drilling apparatus
US2296819A (en) * 1939-11-16 1942-09-22 Sullivan Machinery Co Rock drill
US2296818A (en) * 1939-11-16 1942-09-22 Sullivan Machinery Co Rock drill
US2301887A (en) * 1939-08-08 1942-11-10 Lamb Harold Thomas Portable mechanically operated drill
US2319512A (en) * 1940-07-30 1943-05-18 Parrish Alan Jay Earth boring machine
US2323493A (en) * 1940-12-09 1943-07-06 Goodman Mfg Co Kerf-cutting machine
US2338625A (en) * 1940-02-28 1944-01-04 Sullivan Machinery Co Rock drill
US2347499A (en) * 1941-08-12 1944-04-25 Sullivan Machinery Co Rock drill
US2365681A (en) * 1941-08-15 1944-12-26 Sullivan Machinery Co Drill steel centralizer
US2365749A (en) * 1941-05-07 1944-12-26 Sullivan Machinery Co Rock drill
US2377279A (en) * 1944-02-07 1945-05-29 Benjamin H Stewart Lift
US2388720A (en) * 1942-10-05 1945-11-13 Thomas P Campbell Drilling apparatus
US2408387A (en) * 1945-02-01 1946-10-01 Harry Samuel Gay Timber setting machine
US2491273A (en) * 1945-03-24 1949-12-13 Joy Mfg Co Drilling apparatus
US2500932A (en) * 1944-12-01 1950-03-21 Joy Mfg Co Drilling apparatus
US2570400A (en) * 1946-11-27 1951-10-09 Jeffrey Mfg Co Kerf-cutting mining machine
US2581667A (en) * 1946-09-04 1952-01-08 Joy Mfg Co Mining apparatus
US2634950A (en) * 1949-08-08 1953-04-14 Eldon C Allen Coal drill
US2661189A (en) * 1951-09-29 1953-12-01 Independent Pneumatic Tool Co Centralizer
US2670931A (en) * 1950-01-20 1954-03-02 Joy Mfg Co Apparatus for drilling holes for roof anchors

Patent Citations (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1195108A (en) * 1916-08-15 Metal weather-stkip
US1092583A (en) * 1909-10-18 1914-04-07 Charles H Locher Apparatus for rock-drilling.
US1077856A (en) * 1912-09-28 1913-11-04 Ebenezer R Ray Pneumatic feed and return rock-drill.
US1878036A (en) * 1928-06-11 1932-09-20 Goodman Mfg Co Drilling mechanism
US2144627A (en) * 1931-11-16 1939-01-24 Sullivan Machinery Co Drilling apparatus
US2060814A (en) * 1932-08-18 1936-11-17 Jeffrey Mfg Co Drilling machine
US1992129A (en) * 1933-04-03 1935-02-19 Silas Mason Company Inc Apparatus for rock tunneling
US2143105A (en) * 1936-04-21 1939-01-10 Cleveland Rock Drill Co Feeding mechanism for rock drills
GB531465A (en) * 1939-03-31 1941-01-06 George Herbert Dowty Improvements relating to hydraulic actuating systems, for aircraft and the like
US2288542A (en) * 1939-04-19 1942-06-30 Sullivan Machinery Co Drilling apparatus
US2301887A (en) * 1939-08-08 1942-11-10 Lamb Harold Thomas Portable mechanically operated drill
US2296819A (en) * 1939-11-16 1942-09-22 Sullivan Machinery Co Rock drill
US2296818A (en) * 1939-11-16 1942-09-22 Sullivan Machinery Co Rock drill
US2338625A (en) * 1940-02-28 1944-01-04 Sullivan Machinery Co Rock drill
US2319512A (en) * 1940-07-30 1943-05-18 Parrish Alan Jay Earth boring machine
US2323493A (en) * 1940-12-09 1943-07-06 Goodman Mfg Co Kerf-cutting machine
US2365749A (en) * 1941-05-07 1944-12-26 Sullivan Machinery Co Rock drill
US2347499A (en) * 1941-08-12 1944-04-25 Sullivan Machinery Co Rock drill
US2365681A (en) * 1941-08-15 1944-12-26 Sullivan Machinery Co Drill steel centralizer
US2388720A (en) * 1942-10-05 1945-11-13 Thomas P Campbell Drilling apparatus
US2377279A (en) * 1944-02-07 1945-05-29 Benjamin H Stewart Lift
US2500932A (en) * 1944-12-01 1950-03-21 Joy Mfg Co Drilling apparatus
US2408387A (en) * 1945-02-01 1946-10-01 Harry Samuel Gay Timber setting machine
US2491273A (en) * 1945-03-24 1949-12-13 Joy Mfg Co Drilling apparatus
US2581667A (en) * 1946-09-04 1952-01-08 Joy Mfg Co Mining apparatus
US2570400A (en) * 1946-11-27 1951-10-09 Jeffrey Mfg Co Kerf-cutting mining machine
US2634950A (en) * 1949-08-08 1953-04-14 Eldon C Allen Coal drill
US2670931A (en) * 1950-01-20 1954-03-02 Joy Mfg Co Apparatus for drilling holes for roof anchors
US2661189A (en) * 1951-09-29 1953-12-01 Independent Pneumatic Tool Co Centralizer

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124204A (en) * 1964-03-10 Face drill
US3078932A (en) * 1957-11-08 1963-02-26 Rogers Iron Works Company Drilling machine
US3146836A (en) * 1959-12-16 1964-09-01 Consolidation Coal Co Mine drilling machine
US3101006A (en) * 1960-10-13 1963-08-20 Ingersoll Rand Co Drill mounting
US3162253A (en) * 1961-01-06 1964-12-22 Joy Mfg Co Drilling device
US3150723A (en) * 1962-04-02 1964-09-29 Joy Mfg Co Rotary coal drill
US3181630A (en) * 1962-07-03 1965-05-04 Joy Mfg Co Blasthole drill
US3205951A (en) * 1963-02-01 1965-09-14 Galis Mfg Company Face drilling machine
DE1217318B (en) * 1963-03-13 1966-05-26 Louis Laurent Chappuis Device for setting rock bolts
US3402777A (en) * 1967-07-03 1968-09-24 Watson Mfg Company Kelly stabilization systems
US3508619A (en) * 1968-08-13 1970-04-28 Gardner Denver Co Hose guide for rock drills
US3684035A (en) * 1970-04-24 1972-08-15 Macgordon Wills Cable cylinders
US3667552A (en) * 1970-06-03 1972-06-06 John Edward Gordon Cable feed device
US3752242A (en) * 1971-11-16 1973-08-14 E Gremillion Hydraulically actuated cavity forming device
US4035969A (en) * 1975-06-04 1977-07-19 Bruno Casagrande Telescopic columns of machines for making foundations, and the telescopic columns thereby derived
US20100074044A1 (en) * 2006-11-02 2010-03-25 Sandvik Mining And Construction Oy Cement silo structure for mining machine
US8172005B2 (en) * 2006-11-02 2012-05-08 Sandvik Mining And Construction Oy Cement silo structure for mining machine
US20100294570A1 (en) * 2008-02-20 2010-11-25 Fredrik Saf Boom arrangement for a rock drill and rock drill rig
US8418783B2 (en) * 2008-02-20 2013-04-16 Atlas Copco Rock Drills Ab Boom arrangement for a rock drill and rock drill rig
US9995091B2 (en) * 2013-06-19 2018-06-12 Epiroc (Nanjing) Construction And Mining Equipment Co., Ltd. Rock drill telescopic arm and rock drill
US20170275947A1 (en) * 2014-08-18 2017-09-28 R.N.P. Industries Inc. Improved self-supporting pneumatic hammer positioner with universal joint
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