GB191504350A - Improvements in Rock Drills and like Machines. - Google Patents
Improvements in Rock Drills and like Machines.Info
- Publication number
- GB191504350A GB191504350A GB191504350DA GB191504350A GB 191504350 A GB191504350 A GB 191504350A GB 191504350D A GB191504350D A GB 191504350DA GB 191504350 A GB191504350 A GB 191504350A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tool
- rod
- liquid column
- liquid
- impulses
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
- B25D9/06—Means for driving the impulse member
- B25D9/12—Means for driving the impulse member comprising a built-in liquid motor, i.e. the tool being driven by hydraulic pressure
- B25D9/125—Means for driving the impulse member comprising a built-in liquid motor, i.e. the tool being driven by hydraulic pressure driven directly by liquid pressure working with pulses
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
4350. Constantinesco, G., and Haddon, W. March 19. Percussive drills. - Percussive rock drills &c. are operated at a distance from a power generator by means of a series of periodic variations of pressure and volume travelling along a single liquid column, that is by impulses of energy conveyed along a single pipe 1. Fig. 2, to the tool 13 from a generator, by a series of waves due to the elasticity of the liquid column. The liquid column is divided by a spring " condenser " c, Fig. 1, as described in Specifications 9029/13 and 12,438/14, [both in Class 69 (ii), Hydraulic presses &c.], but liquid is allowed to escape therethrough for the purpose of washing out the bore-hole. This leak may be effected by making the reciprocating member c fit loosely in the pipe, or by making it hollow and with closed ends c, which slide in sleeves b, and providing ports f, g, h through which liquid passes when the member c is at the end of its stroke. The impulses are delivered to a piston-rod 3, Fig. 2, which carries the tool 13; the inner end of the rod fits loosely in the casing, so that the washing-water can pass by a passage 16 to a central bore 14. Springs 21, 22 constitute a condenser. A rifled extension 4 of the rod 3 works in a ratchet device 5, 6, whereby rotation of the tool is effected.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB191504350T | 1915-03-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB191504350A true GB191504350A (en) | 1916-03-16 |
Family
ID=32649558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB191504350D Expired GB191504350A (en) | 1915-03-19 | 1915-03-19 | Improvements in Rock Drills and like Machines. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB191504350A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7322425B2 (en) | 2003-07-07 | 2008-01-29 | Sandvik Mining And Construction Oy | Method of generating stress pulse in tool by means of pressure fluid operated impact device, and impact device |
-
1915
- 1915-03-19 GB GB191504350D patent/GB191504350A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7322425B2 (en) | 2003-07-07 | 2008-01-29 | Sandvik Mining And Construction Oy | Method of generating stress pulse in tool by means of pressure fluid operated impact device, and impact device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| SE0602436L (en) | Rock drilling method and rock drilling machine | |
| SE7701294L (en) | DRILLING TOOLS | |
| EP0333484A3 (en) | Flow pulsing apparatus for down-hole drilling equipment | |
| SE463193B (en) | DEVICE WITH BATTERY MACHINERY | |
| SE7900897L (en) | HYDRAULIC IMPACT DRILL | |
| GB191504350A (en) | Improvements in Rock Drills and like Machines. | |
| GB328629A (en) | Improvements in or relating to deep drilling apparatus | |
| US1080707A (en) | Rock-drill. | |
| GB814240A (en) | Vibrator | |
| US1372942A (en) | Drill | |
| GB725175A (en) | Improvements in or relating to drilling arrangements for wells, bore-holes, shot-holes and the like | |
| US1195478A (en) | Rock-drill | |
| RU159850U1 (en) | SHOCK ASSEMBLY FOR SHOCK AND ROTARY DRILLING | |
| GB191020894A (en) | Rotary Coal Boring Machine. | |
| US1078953A (en) | Hammer-drill. | |
| SU123498A1 (en) | Drilling machine rotary-impact machine using a hammer | |
| US1558303A (en) | Double-tube connection | |
| US1669002A (en) | Rock-drilling machine | |
| US1334284A (en) | Rock-drill and like machine | |
| GB191400444A (en) | Improvements in or relating to Rock-drills and the like. | |
| GB130160A (en) | Improvements in Rock Drilling Machines. | |
| US967239A (en) | Fluid-operated rock-drill. | |
| GB162307A (en) | Improvements in and relating to rock drilling apparatus | |
| GB1004694A (en) | Improvements in or relating to percussion drilling apparatus | |
| GB522765A (en) | Improvements relating to percussive rock drills |