GB190903399A - Improvements in Excavators. - Google Patents

Improvements in Excavators.

Info

Publication number
GB190903399A
GB190903399A GB190903399DA GB190903399A GB 190903399 A GB190903399 A GB 190903399A GB 190903399D A GB190903399D A GB 190903399DA GB 190903399 A GB190903399 A GB 190903399A
Authority
GB
United Kingdom
Prior art keywords
scoop
brake
flap
wheels
shaft
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
Hans Friedrich Menck
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 GB190903399A publication Critical patent/GB190903399A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/407—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with ejecting or other unloading device
    • E02F3/4075—Dump doors; Control thereof

Abstract

3399. Menck, H. F. Feb. 11. Scoop-arm machines.-The bottom flap of the scoop is connected with braking-mechanism so that the scoop may be emptied gradually. As shown in Fig. 2, the bottom flap b of the scoop is carried by yoke-pieces b<1>, the rear portions of which are formed as toothed sectors engaging gear-wheels d mounted on a shaft e carried by the scoop arm 2. The shaft e also carries a brake disk f, having a band brake g normally pulled by a weight m on a bell-crank lever connected by a link l with a lever g<2> to which the free end of the band is fixed. A cord o lift the weight and allows the flap to open when required, the rate of emptying of the scoop being determined by the pull given to the cord. To allow the flap to close by gravity on the downward movement of the scoop, the wheels d and the disk f are loose on the shaft e, and spring pawls p on the brake disk engage ratchet-wheels q secured to the gear-wheels d; the flap is thus always free to close, but is free to open only when the brake g is released. In the form shown in Fig. 5, the ratchet gear is omitted, and the gear-wheels d and the brake disk f are fixed to the shaft e. The weight m is lifted, and the brake released, by a rope o' wound on a roller r on which the operating-rope o is also wound. When the scoop has been emptied, a strong pull is given to the rope o, a tooth r' on the roller r is caught by a toothed lever s, and the brake is held released. When the flap b closes, a slotted rod t releases the roller r and allows the weight to fall and the brake to act.
GB190903399D 1909-02-11 1909-02-11 Improvements in Excavators. Expired GB190903399A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190903399T 1909-02-11

Publications (1)

Publication Number Publication Date
GB190903399A true GB190903399A (en) 1909-06-17

Family

ID=32636959

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190903399D Expired GB190903399A (en) 1909-02-11 1909-02-11 Improvements in Excavators.

Country Status (1)

Country Link
GB (1) GB190903399A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113374022A (en) * 2021-04-26 2021-09-10 徐州纳维尔机械制造有限公司 Excavator movable arm energy-saving device based on spring group and reducing roller and working method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113374022A (en) * 2021-04-26 2021-09-10 徐州纳维尔机械制造有限公司 Excavator movable arm energy-saving device based on spring group and reducing roller and working method
CN113374022B (en) * 2021-04-26 2022-08-02 徐州纳维尔机械制造有限公司 Excavator movable arm energy-saving device based on spring group and reducing roller and working method

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