(0)B25D:0/1:
IPC6
SECTION B - PERFORMING OPERATIONS; TRANSPORTING
PERCUSSIVE TOOLS
B25D
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<<   >>   B25D001/00 - B25D009/26  

B 25 D

 PERCUSSIVE TOOLS (percussive machines for forging B 21 J; hand-held drilling machines, in general B 23 B 45/00, for wood B 27 C 3/08; drilling machines, used for mining or quarrying, with reciprocating tool which is turned intermittently when out of contact with the working face E 21 C 3/00) [2]

 

 

 
 

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/ 00 Hand hammers; Hammer heads of special shape or materials

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/ 02 • Inserts or attachments forming the striking part of hammer heads (B 25 D 1/08 to B 25 D 1/14 take precedence) [5]  

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/ 04 • with provision for withdrawing or holding nails or spikes  

1
/ 06 • • Magnetic holders [5]  

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/ 08 • having deformable heads (B 25 D 1/12 takes precedence) [5]  

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/ 10 • having work protector surrounding faces (B 25 D 1/12 takes precedence) [5]  

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/ 12 • having shock-absorbing means [5]  

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/ 14 • having plural striking faces [5]  

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/ 16 • having the impacting head in the form of a sleeve slidable on a shaft, e.g. hammers for driving a valve or draw-off tube into a barrel [5]  
 

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/ 00 Hand chisels (mortise chisels B 27 G 17/08)
 

 5
/ 00 Centre punches

5
/ 02 • Automatic centre punches  
 

 7
/ 00 Picks (combined with other tools B 25 F)
 

 9
/ 00 Portable percussive tools with fluid-pressure drive, e.g. having several percussive tool bits operated simultaneously (centrifugal or rotary impact type B 25 D 15/00; portable non-percussive drilling tools driven by fluid pressure or pneumatic power B 23 B 45/04)

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/ 02 • of the tool-carrier piston type, i.e. in which the tool is connected to an impulse member  

9
/ 04 • of the hammer piston type, i.e. in which the tool bit or anvil is hit by an impulse member  

9
/ 06 • Means for driving the impulse member  

9
/ 08 • • comprising a built-in air compressor  

9
/ 10 • • comprising a built-in internal-combustion engine  

9
/ 11 • • operated by combustion pressure generated by detonation of a cartridge  

9
/ 12 • • comprising a built-in liquid motor  

9
/ 14 • Control devices for the reciprocating piston  

9
/ 16 • • Valve arrangements therefor  

9
/ 18 • • • involving a piston-type slide valve  

9
/ 20 • • • involving a tubular-type slide valve  

9
/ 22 • • • involving a rotary-type slide valve  

9
/ 24 • • • involving a rocking-plate type valve  

9
/ 26 • • Control devices for adjusting the stroke of the piston or the force or frequency of impact thereof  
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