GB107559A - Improvements in Power Hacksaw-machines. - Google Patents
Improvements in Power Hacksaw-machines.Info
- Publication number
- GB107559A GB107559A GB462217A GB462217A GB107559A GB 107559 A GB107559 A GB 107559A GB 462217 A GB462217 A GB 462217A GB 462217 A GB462217 A GB 462217A GB 107559 A GB107559 A GB 107559A
- Authority
- GB
- United Kingdom
- Prior art keywords
- saw
- spring
- bar
- ratchet
- work
- 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
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D51/00—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends
- B23D51/16—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of drives or feed mechanisms for straight tools, e.g. saw blades, or bows
- B23D51/20—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of drives or feed mechanisms for straight tools, e.g. saw blades, or bows with controlled feed of the tool, or with special arrangements for relieving or lifting the tool on the return stroke
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sawing (AREA)
Abstract
107,559. Rasmussen, A. March 30, 1917. Reciprocating-saw machines.-In a hack-saw machine, the blade is fed to the work during the cutting stroke and is lifted from it by a spring or weight during the non-cutting stroke, a checking-device provided to limit this lifting movement. The bar 12 upon which the saw frame 14 reciprocates is pivoted upon the driving- shaft 13 and is normally raised by a spring 25 or equivalent weight. An arm 36 of the frame 12 is pivoted to a vertically slidable ratchet bar 33 which is depressed during the cutting-stroke to feed the saw to the work by a dog 40 carried by a lever 42 rocked by a spring 50, the tension of which is adjusted by a lever 55, 58. During the non-cutting stroke, the dog 40 is raised by a cam 49 on the shaft 13 and the saw is raised from the work by the spring 25, this movement being checked by a dog 60<1> engaging the ratchet-bar 33. To allow the spring 25 to raise the saw for the insertion of new work, the dogs 40, 60<1> are withdrawn from the ratchet-bar 33 by a hand-lever 68, 65, the height to which the saw rises being limited by a stop 73 adjustable on a rod 70. According to a modification, the ratchet bar 33 is replaced by a ratchet disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB462217A GB107559A (en) | 1917-03-30 | 1917-03-30 | Improvements in Power Hacksaw-machines. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB462217A GB107559A (en) | 1917-03-30 | 1917-03-30 | Improvements in Power Hacksaw-machines. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB107559A true GB107559A (en) | 1917-07-05 |
Family
ID=32407670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB462217A Expired GB107559A (en) | 1917-03-30 | 1917-03-30 | Improvements in Power Hacksaw-machines. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB107559A (en) |
-
1917
- 1917-03-30 GB GB462217A patent/GB107559A/en not_active Expired
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