1914503

Information

• Patent Grant
• 1914503

• References
• Source

• Patent Number

  1,914,503

• Date Filed

  Not available

• Date Issued

  Tuesday, June 20, 1933
  91 years ago

• CPC

  • E21C35/043 - Protection against overload during transfer of machines for slitting or completely freeing the mineral from the seam
  • Y10T74/1508 - Rotary crank or eccentric drive
  • Y10T74/1511 - Lever transmitter
  • Y10T74/19633 - Yieldability in gear trains
  • Y10T74/2173 - Cranks and wrist pins

• US Classifications

  • 299 - Mining or in situ disintegration of hard material
  • 074 - Machine element or mechanism