GB700471A - Improvements in or relating to spring operated percussive tools - Google Patents
Improvements in or relating to spring operated percussive toolsInfo
- Publication number
- GB700471A GB700471A GB894451A GB894451A GB700471A GB 700471 A GB700471 A GB 700471A GB 894451 A GB894451 A GB 894451A GB 894451 A GB894451 A GB 894451A GB 700471 A GB700471 A GB 700471A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- spring
- blow
- rod
- valve
- 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
- B25D9/08—Means for driving the impulse member comprising a built-in air compressor, i.e. the tool being driven by air pressure
Abstract
700,471. Percussive drills. PRIESS, H. April 17, 1951, No. 8944/51. Class 124 The hammer blow in a spring operated percussive tool is produced by the convolutions of a tension spring striking one another. As shown a spring 14 fixed at one end in a piston 15, has at its other end a piston 18 sliding in a cylinder forming part of a housing 10. A valve 24 admits compressed air through a port 28 below the piston which moves upwards and puts the spring 14 under tension. A rod 21. passing through the top of the cylinder and having a return spring 19 and a plate 22 on its upper end rises with the piston 18 and moves the valve upward, cutting off the air supply and opening an exhaust port 30 releasing the tension on the spring which causes the piston 15 which has a small movement to strike a blow on the steel 12. A rod, pivoted in the valve 24, has one end in the space above the plate 22 and the other end connected by an adjustable rod to the operating handle 33, and by adjustment of the rod the point at which air is cut off, and hence the power of the blow, may be varied, Fig. 2 (not shown). A pin 17 holding the piston 16 may be removed when operation of the piston 18 will produce a blow in the upward direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB894451A GB700471A (en) | 1951-04-17 | 1951-04-17 | Improvements in or relating to spring operated percussive tools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB894451A GB700471A (en) | 1951-04-17 | 1951-04-17 | Improvements in or relating to spring operated percussive tools |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB700471A true GB700471A (en) | 1953-12-02 |
Family
ID=9862332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB894451A Expired GB700471A (en) | 1951-04-17 | 1951-04-17 | Improvements in or relating to spring operated percussive tools |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB700471A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2171351A (en) * | 1985-02-27 | 1986-08-28 | Tench Main Limited | Fastener dispensing and affixing device |
| CN110641408A (en) * | 2019-10-22 | 2020-01-03 | 长安大学 | Spring window breaker |
-
1951
- 1951-04-17 GB GB894451A patent/GB700471A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2171351A (en) * | 1985-02-27 | 1986-08-28 | Tench Main Limited | Fastener dispensing and affixing device |
| CN110641408A (en) * | 2019-10-22 | 2020-01-03 | 长安大学 | Spring window breaker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1110622A (en) | Percussion apparatus | |
| ES366870A1 (en) | Hammer mechanism for percussion tools | |
| GB1030136A (en) | Improvements relating to power-operated percussive tools | |
| GB700471A (en) | Improvements in or relating to spring operated percussive tools | |
| GB908132A (en) | Improvements in percussive tools | |
| GB1154593A (en) | Vibrationless Percussive Tool. | |
| GB1024138A (en) | A pneumatically-actuated hammer for general use in foundries | |
| US1551989A (en) | Vacuum-power hammer | |
| GB658284A (en) | Improvements in or relating to striking hammers with mechanical drive | |
| GB815990A (en) | Improvements in and relating to percussion devices | |
| SU982894A2 (en) | Percussive pneumatic machine | |
| GB188061A (en) | Improvements in or relating to pressure fluid operated hammers for use in pile extracting and similar operations | |
| GB866645A (en) | Improvements in hand-guidable motor-driven implements | |
| GB442493A (en) | Improvements relating to electrically driven percussion hammering devices | |
| GB662409A (en) | Improvements in or relating to percussive appliances | |
| GB799442A (en) | Improvements in or relating to air-operated percussive tools | |
| SU946912A1 (en) | Pneumatic single-impact hammer | |
| GB769329A (en) | Improvements in and relating to pneumatic percussive tools | |
| SU85842A1 (en) | Nailing apparatus | |
| GB827732A (en) | Improvements in and relating to percussion tools | |
| GB199782A (en) | Improvements in or relating to pneumatic hammers and the like | |
| SU401482A1 (en) | PNEUMATIC HAMMER | |
| GB786595A (en) | Stapling machine | |
| GB664984A (en) | Improvements in and relating to percussive tools | |
| GB966397A (en) | Pneumatic tool |