GB190825199A - Improvements in Grabs or Grab Buckets. - Google Patents

Improvements in Grabs or Grab Buckets.

Info

Publication number
GB190825199A
GB190825199A GB190825199DA GB190825199A GB 190825199 A GB190825199 A GB 190825199A GB 190825199D A GB190825199D A GB 190825199DA GB 190825199 A GB190825199 A GB 190825199A
Authority
GB
United Kingdom
Prior art keywords
chain
rods
buckets
pawl
pulley
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
Application number
Inventor
Augustin Hispa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of GB190825199A publication Critical patent/GB190825199A/en
Expired legal-status Critical Current

Links

Landscapes

  • Load-Engaging Elements For Cranes (AREA)

Abstract

25,199. Hispa, A. Nov. 23. Grabs.-Relates to grab buckets operated by block and pulley gear and consists in means for automatically closing, opening, and holding open such grab buckets. Figs. 1 and 3 are respectively front and side views of grab buckets embodying the invention. A shaft C carries the sheave D of the block and pulley arrangement, the operating- wheel E, and the extremities of the rods F. Slots H are provided in the rods F, which thereby have a certain amount of play when the bucket rests upon the material to be raised: In the position for lowering, the chain I is idle, and the chain K is firmly held between the pulleys J and the wheel E, the latter being prevented from turning by having a toothed wheel P, which is firmly connected with it, engaged by a pawl O. When the material to be raised bears the weight of the bucket, the rods F operate a catch N carried by a spindle M, which also carries the pawl O. The play of the frame A in the rods F thus releases the pawl 0, allowing the chain K to run freely over the pulley E. By pulling on the chain K, the buckets are closed and raised, being emptied at any desired height by taking the weight on the chain I and slacking the chain K, which allows the buckets to open as far as necessary and disengages the catch gear N.' On again hauling on the chain K the pawl engages with the pulley P, and the bucket is held open for lowering.
GB190825199D 1908-11-23 1908-11-23 Improvements in Grabs or Grab Buckets. Expired GB190825199A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190825199T 1908-11-23

Publications (1)

Publication Number Publication Date
GB190825199A true GB190825199A (en) 1909-02-04

Family

ID=32440390

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190825199D Expired GB190825199A (en) 1908-11-23 1908-11-23 Improvements in Grabs or Grab Buckets.

Country Status (1)

Country Link
GB (1) GB190825199A (en)

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