GB727694A - New or improved loading fork for lifting and conveying stacks of articles by means of tines which are inserted into gaps provided in the lowermost layer of the stack - Google Patents

New or improved loading fork for lifting and conveying stacks of articles by means of tines which are inserted into gaps provided in the lowermost layer of the stack

Info

Publication number
GB727694A
GB727694A GB29584/52A GB2958452A GB727694A GB 727694 A GB727694 A GB 727694A GB 29584/52 A GB29584/52 A GB 29584/52A GB 2958452 A GB2958452 A GB 2958452A GB 727694 A GB727694 A GB 727694A
Authority
GB
United Kingdom
Prior art keywords
fork
grippers
articles
piston
valve
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
GB29584/52A
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.)
MIAG FAHRZEUGBAU GmbH
Original Assignee
MIAG FAHRZEUGBAU GmbH
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 MIAG FAHRZEUGBAU GmbH filed Critical MIAG FAHRZEUGBAU GmbH
Publication of GB727694A publication Critical patent/GB727694A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/12—Platforms; Forks; Other load supporting or gripping members
    • B66F9/18—Load gripping or retaining means
    • B66F9/188—Stacked-bricks lifting devices

Abstract

727,694. Gripper forks for lifting stacked articles. MIAG FAHRZEUGBAU GES. Nov. 24, 1952 [Nov. 23, 1951], No. 29584/52. Class 78(4). A fork for handling stacks of articles has hydraulic grippers 1 secured to the tines 2 and connected to a pressure generator 6, 7 through which the fork is supported and which is subjected to the weight of the fork and the load supported thereon. The generator comprises a cylinder 7 and a piston 6 urged apart by a spring 8 and secured respectively to the suspension means 10 and the fork by means of a pair of U-shaped members 9, 5 which co-operate with each other and guide the piston for axial movement in the cylinder. The member 5 is adapted to slide along the horizontal fork supporting arm 41, but is provided with grippers 52 which automatically lock the member to the arm as soon as the loaded fork is raised. A reservoir 16 is connected to the system through a valve 15 which is adapted to close when a predeter. mined pressure is generated in the system. In a modification (not shown), the reservoir and valve are incorporated in the interior of the piston 6. To limit the force exerted by the grippers 1 a spring-loaded thrustor 31, 32 is connected to the system and is arranged to close a valve 20, so isolating the grippers, when a predetermined pressure is reached. The push rod 35 of this thrustor is adjustable in length and an adjustable cylinder end 34 is provided to provide the desired stress in the spring 33.
GB29584/52A 1951-11-23 1952-11-24 New or improved loading fork for lifting and conveying stacks of articles by means of tines which are inserted into gaps provided in the lowermost layer of the stack Expired GB727694A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE727694X 1951-11-23

Publications (1)

Publication Number Publication Date
GB727694A true GB727694A (en) 1955-04-06

Family

ID=6635519

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29584/52A Expired GB727694A (en) 1951-11-23 1952-11-24 New or improved loading fork for lifting and conveying stacks of articles by means of tines which are inserted into gaps provided in the lowermost layer of the stack

Country Status (1)

Country Link
GB (1) GB727694A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2925300A (en) * 1956-07-09 1960-02-16 Ralph R Kelley Material handling device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2925300A (en) * 1956-07-09 1960-02-16 Ralph R Kelley Material handling device

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