US791264A - Bit for rock-drills. - Google Patents
Bit for rock-drills. Download PDFInfo
- Publication number
- US791264A US791264A US20933104A US1904209331A US791264A US 791264 A US791264 A US 791264A US 20933104 A US20933104 A US 20933104A US 1904209331 A US1904209331 A US 1904209331A US 791264 A US791264 A US 791264A
- Authority
- US
- United States
- Prior art keywords
- bit
- passage
- cutting
- rock
- socket
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000005520 cutting process Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 230000036346 tooth eruption Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000005553 drilling Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/02—Swivel joints in hose-lines
-
- 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
- Y10T279/00—Chucks or sockets
- Y10T279/17—Socket type
-
- 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
- Y10T279/00—Chucks or sockets
- Y10T279/17—Socket type
- Y10T279/17111—Fluid-conduit drill holding
Definitions
- the present invention is intended to utilize the exhaust-air from a pneumatic drill or hammer for the purpose of cooling the hit and cleansing the hole of waste material, and this is accomplished by constructing the bit in such a way as to allow the exhaust-air to pass through the bit and be vented therefrom at the cutting end, thereby cooling the hit throughout its entire extent and directing a volume of air immediately upon that portion of the rock which is being drilled.
- Another object is to so construct the drillhoider socket that the air may pass through and be vented therefrom by means of radiallyarranged passages communicating with the longitudinally-extending passage.
- a further object of the invention is to so arrange the. cutting-head that it will allow for the discharge of waste material without clogging or impeding the passage of air directed through the bit.
- Figure 1 is a side elevation of a bit for drilling rock inserted into a drill-holder socket; Fig. 2, a cross-section taken on line 2 2 of Fig. 1; and Fig. 3, an end view of the cuttingface of the bit.
- the bit of the present invention is intended to be used with pneumatic tools of any style which exhaust the air in the end of the tool, and consists of a shank A of suitable length and size, which shank is provided with a shoulder a, above which the bit has its faces snitably beveled to provide an end B for insertion into adrill-holder socket.
- the bit is provided throughout its entire extent with a hole or passage C, which extends down to and opens through an enlarged cutting-head D, provided with aseries of parallel rows of cutting-teeth (Z on its cutting-face, and the cutting-head is further provided with a groove or channel E, which extends transversely from side to side of the cutting-face through the rows of teeth, with which channel the longitudinally-extcnding passage communicates.
- Communicating with the ends of the transverse]y-cxtcnding channel are exterior channels a, cut in the side of the head.
- the longitudinal passage is preferabiy of oval shape at its discharge end F, at which'point it communicates with the transversely-extending channel, and the greatest diameter of the enlarged portion of the passage is transverse to the channel E, as shown in Fig. 3.
- a hit-holder socket M provided with a shank N, having on its interior a longitudinallyextending opening 0, and the shank is formed integrally with a socket portion P, which is adapted to have a bit inserted thereinto.
- the socket portion is recessed on its interior and communicates with the passage through a passage Q, from which extend a series of radially-arranged ai rpassage vents R.
- the lower end of the socket is enlarged as compared with the shank, loaving a shoulder S at the point of juncture there with.
- the bit In use the bit will often strike as many as two thousand blows per minute, causing the stone to chip very rapidly as the bit is twisted back and forth by the movement of the pneumatic tool. This movement and vibration would tend to heat the bit very rapidly were it not for the passage of the exhaust air through the bit, which is blown out at the cutting end and serves to drive away the chips and dust broken oil by the cutting-teeth and allowthe same to be carried up the side grooves or channels as the bit is forced through the rock.
- the invention is simple in construction and espcciall y adapted for use with pneumatic tools of ordinary construction, and that it affords a great saving, and that it simplifies the cutting operation and obviates the necessity of cooling the tool by ordinary means.
- the provision of the socket enables the use of a bit having a small discharge-passage and also provides for the discharge of all the air from the hammer.
- a socket provided with a shank adapted for insertion into a pneumatic tool, said shank being provided with a longitudinally-extending passage adapted to communicate with the passage in the bit, and a series of radially-arranged vent-openings for discharging the excess of exhaust-air, substantially as described.
- socket provided with a shank adapted for insertion into a pneumatic too], said shank being provided with a longitudinally-extending passage adapted to communicate with the passagein the bit, and a series of radially-arranged diverged vent-openings leading from the longitudinal passage and adapted to discharge the excess of exhaust air, substantially as described.
- a socket provided with a shoulder adapted to position the socket, and having on its interior a longitudinallyextending bore adapted to connect with the passage in the bit, and further provided with a vent-opening through the wall of the socket for discharging the excess of exhaust-air, substantially as described.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Description
PATENTED MAY 30, 1905.
M HARDSOGG. BIT FOR ROCK DRILLS.
APPLIUATIOH rum) MAY 23, 190-1.
mml 111111 W M l w v #771 0 1:76? 1710/7 hHa 839 Patented May 30., 1905.
PATENT OFFICE.
MARTIN HARDSOCG, OF OTTUM /VA IOWA.
BIT FOR ROCK-DRILLS.
SPECIFICATION forming part of Letters Patent No. 791,264, dated May 30, 1905.
Application filed M11723, 1904. Serial No. 209,331.
To all whom it may concern.-
Be it known that I, MARTIN Hnnnsocs, a citizen of the United States, residing at Ottumwa, in the county of Wapello and State of Iowahave invented certain new and useful Improvements in Bits for Rock-Drills, of which the following is a specification.
1n the art to which the present invention relates it is necessary to keep the bit cool and the hole drilled by the bit as free from chips or cuttings as possible, and it has hitherto been the practice to use air or water discharged directly into the hole for this purpose, admitting it into the hole as the same is being drilled.
The present invention is intended to utilize the exhaust-air from a pneumatic drill or hammer for the purpose of cooling the hit and cleansing the hole of waste material, and this is accomplished by constructing the bit in such a way as to allow the exhaust-air to pass through the bit and be vented therefrom at the cutting end, thereby cooling the hit throughout its entire extent and directing a volume of air immediately upon that portion of the rock which is being drilled.
Another object is to so construct the drillhoider socket that the air may pass through and be vented therefrom by means of radiallyarranged passages communicating with the longitudinally-extending passage.
A further object of the invention is to so arrange the. cutting-head that it will allow for the discharge of waste material without clogging or impeding the passage of air directed through the bit.
The invention consists in the features of construction and combination of parts hereinafter described and claimed.
in the drawings illustrating the invention, Figure 1 is a side elevation of a bit for drilling rock inserted into a drill-holder socket; Fig. 2, a cross-section taken on line 2 2 of Fig. 1; and Fig. 3, an end view of the cuttingface of the bit.
The bit of the present invention is intended to be used with pneumatic tools of any style which exhaust the air in the end of the tool, and consists of a shank A of suitable length and size, which shank is provided with a shoulder a, above which the bit has its faces snitably beveled to provide an end B for insertion into adrill-holder socket. The bit is provided throughout its entire extent with a hole or passage C, which extends down to and opens through an enlarged cutting-head D, provided with aseries of parallel rows of cutting-teeth (Z on its cutting-face, and the cutting-head is further provided with a groove or channel E, which extends transversely from side to side of the cutting-face through the rows of teeth, with which channel the longitudinally-extcnding passage communicates. Communicating with the ends of the transverse]y-cxtcnding channel are exterior channels a, cut in the side of the head. The longitudinal passage is preferabiy of oval shape at its discharge end F, at which'point it communicates with the transversely-extending channel, and the greatest diameter of the enlarged portion of the passage is transverse to the channel E, as shown in Fig. 3.
In Fig. 1 is shown a hit-holder socket M, provided with a shank N, having on its interior a longitudinallyextending opening 0, and the shank is formed integrally with a socket portion P, which is adapted to have a bit inserted thereinto. The socket portion is recessed on its interior and communicates with the passage through a passage Q, from which extend a series of radially-arranged ai rpassage vents R. The lower end of the socket is enlarged as compared with the shank, loaving a shoulder S at the point of juncture there with.
In use the bit will often strike as many as two thousand blows per minute, causing the stone to chip very rapidly as the bit is twisted back and forth by the movement of the pneumatic tool. This movement and vibration would tend to heat the bit very rapidly were it not for the passage of the exhaust air through the bit, which is blown out at the cutting end and serves to drive away the chips and dust broken oil by the cutting-teeth and allowthe same to be carried up the side grooves or channels as the bit is forced through the rock.
It will be seen that the invention is simple in construction and espcciall y adapted for use with pneumatic tools of ordinary construction, and that it affords a great saving, and that it simplifies the cutting operation and obviates the necessity of cooling the tool by ordinary means. The provision of the socket enables the use of a bit having a small discharge-passage and also provides for the discharge of all the air from the hammer.
\(Vhat I regard as new, and desire to secure by Letters Patent, is
1. In combination with a bit provided with a longitudinally-extending passage on its interior opening through the cutting face, a socket provided with a shank adapted for insertion into a pneumatic tool, said shank being provided with a longitudinally-extending passage adapted to communicate with the passage in the bit, and a series of radially-arranged vent-openings for discharging the excess of exhaust-air, substantially as described.
2. In combination with a bit provided with a longitudinally-extending passage on its in terior opening through the cutting-face, a
socket provided with a shank adapted for insertion into a pneumatic too], said shank being provided with a longitudinally-extending passage adapted to communicate with the passagein the bit, and a series of radially-arranged diverged vent-openings leading from the longitudinal passage and adapted to discharge the excess of exhaust air, substantially as described.
3. In combination with the bit provided with a longitudinally-extending passage on its interior, opening through the cutting-face, a socket provided with a shoulder adapted to position the socket, and having on its interior a longitudinallyextending bore adapted to connect with the passage in the bit, and further provided with a vent-opening through the wall of the socket for discharging the excess of exhaust-air, substantially as described.
MARTIN HARDSOCG. \Vitnesses:
EMMET A. lVoRK, ELMER JOHN LAMBECT.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US20933104A US791264A (en) | 1904-05-23 | 1904-05-23 | Bit for rock-drills. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US20933104A US791264A (en) | 1904-05-23 | 1904-05-23 | Bit for rock-drills. |
Publications (1)
Publication Number | Publication Date |
---|---|
US791264A true US791264A (en) | 1905-05-30 |
Family
ID=2859753
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US20933104A Expired - Lifetime US791264A (en) | 1904-05-23 | 1904-05-23 | Bit for rock-drills. |
Country Status (1)
Country | Link |
---|---|
US (1) | US791264A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2863639A (en) * | 1955-08-09 | 1958-12-09 | Bredesen Leo | Concave multiple cutting edge rock drill bit and die |
US3138216A (en) * | 1962-06-25 | 1964-06-23 | Sandviken Jernverks Aktiebolag | Drill rod |
US3314490A (en) * | 1965-03-31 | 1967-04-18 | Exxon Production Research Co | Diamond drill bit |
US3995707A (en) * | 1975-09-23 | 1976-12-07 | John Herke | Well drilling bit |
US4196783A (en) * | 1978-07-11 | 1980-04-08 | Lofs Verkstads Ab | Device for boring |
US5038874A (en) * | 1989-02-13 | 1991-08-13 | Sandvik Ab | Drill bit having a flushing medium channel |
-
1904
- 1904-05-23 US US20933104A patent/US791264A/en not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2863639A (en) * | 1955-08-09 | 1958-12-09 | Bredesen Leo | Concave multiple cutting edge rock drill bit and die |
US3138216A (en) * | 1962-06-25 | 1964-06-23 | Sandviken Jernverks Aktiebolag | Drill rod |
US3314490A (en) * | 1965-03-31 | 1967-04-18 | Exxon Production Research Co | Diamond drill bit |
US3995707A (en) * | 1975-09-23 | 1976-12-07 | John Herke | Well drilling bit |
US4196783A (en) * | 1978-07-11 | 1980-04-08 | Lofs Verkstads Ab | Device for boring |
US5038874A (en) * | 1989-02-13 | 1991-08-13 | Sandvik Ab | Drill bit having a flushing medium channel |
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