US838233A - Power-hammer. - Google Patents

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Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
  • B21D1/06—Removing local distortions

Definitions

• My inventionv relates to a power-hammer.
• FIG. 1 is a side elevation of my hammer.
• Fig. 2 is a vertical section of the upper part.
• Fig. 3 is a transverse section of same.
• Fig. 4 is a partial cross-section of Fig. 4.
• the hammer may be of any usual or suitable construction, such as are employed for various purposes, as shown at A, and it is fixed in a suitable carrier, as at 2, slidable in guides, as at 3.
• a rack 4 engaging a pinion, as at 5.
• This pinion is loosely turnable upon a shaft 6, which is continuously revolved by a belt-pulley, as at 7, or other suitable connection for the purpose.
• disks S Upon each side of the pinion are disks S, which are movable upon feathers, as at ⁇ 9, fixed in the shaft, so that the disks and the feathers revolve together.
• the pinion has flanges, as shown at 10, having a diameter substantially equal to that of the disks 8. Between these flanges and the disks are fitted any suitable or desired frictional disks 11, which may be made of rough hide or other suitable material and form washers between the two.
• the movable wedge may be operated in any suitable manner. I have here shown it provided with a connectingrod 15, and this is attached to a fulcrumlever 16 within convenient reach of theoperator.
• the hammer-carrier has a shank extending upwardly, as shown at 17, and this is surrounded by a spiral spring, as at 19.
• This spring extends beyond the stem or guide 17, and its upper end will contact with the crossbar 19 at the top of a suitable frame when the hammer has been raised to the desired point. I/Vhen the hammer has been released, the action of the spring will force it down in addition to its own weight, and the momentum gives the required blow.
• the handle of the lever 16 the hammer may be operated with 'any desired speed and its blows very accurately controlled.
• a power-hammer comprising a powershaft, a reciprocable part, a rack connected with said part, a pinion engaging the rack IOO IIO
• A11 apparatus consisting of a reciproeable part a rack connected therewith, a pinion engaging said rack loosely turnable upon a revoluble shaft, disks slidable upon feathers on the shaft exterior to the pinion, and riotional washers located between the disks and pinion, lever-arms fulorunied between their ends having their outer ends converging toward each other, collars with which the inner ends of said leverfarms are connected, antifrietional devioes Carried by the outer end of the levers, a wedge-shaped plate slidable between said antifriotional devices, means by which said plate is reoiprocated, and means for adjusting the Julerums of the .lever-arms,

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Percussive Tools And Related Accessories (AREA)

Description

Priority Applications (1)

Applications Claiming Priority (1)

Publications (1)

Family

ID=2906707

Family Applications (1)

Country Status (1)

• 1905
  • 1905-09-08 US US27757505A patent/US838233A/en not_active Expired - Lifetime

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