GB622964A - An improved mechanical hammer - Google Patents

An improved mechanical hammer

Info

Publication number
GB622964A
GB622964A GB32147A GB32147A GB622964A GB 622964 A GB622964 A GB 622964A GB 32147 A GB32147 A GB 32147A GB 32147 A GB32147 A GB 32147A GB 622964 A GB622964 A GB 622964A
Authority
GB
United Kingdom
Prior art keywords
links
heads
hammer
shaft
rotary
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
GB32147A
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
Priority to GB32147A priority Critical patent/GB622964A/en
Publication of GB622964A publication Critical patent/GB622964A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D11/00—Portable percussive tools with electromotor or other motor drive
    • B25D11/06—Means for driving the impulse member
    • B25D11/066—Means for driving the impulse member using centrifugal or rotary impact elements
    • B25D11/068—Means for driving the impulse member using centrifugal or rotary impact elements in which the tool bit or anvil is hit by a rotary impulse member
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C37/00—Other methods or devices for dislodging with or without loading
    • E21C37/04—Other methods or devices for dislodging with or without loading by devices with parts pressed mechanically against the wall of a borehole or a slit

Abstract

622,964. Rotary hammers. BOLTON, A. Jan. 3, 1946, No. 321/47. Divided out of 622,923, [Group XXI]. [Class 124] In a rotary hammer comprising a number of hammer heads a pivoted at e to links d which are attached to a hub g on a rotary shaft h by pivots f offset from the axis of the shaft, the hammer heads are prevented from assuming their maximum radius by stop means between the heads and the links, and between the links and the shaft. For this purpose, the heads a are formed with recesses b the inner faces of which co-act with flats k on the outer ends of the links d, and flats m on their inner ends co-act with the hub g.
GB32147A 1946-01-03 1946-01-03 An improved mechanical hammer Expired GB622964A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB32147A GB622964A (en) 1946-01-03 1946-01-03 An improved mechanical hammer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB32147A GB622964A (en) 1946-01-03 1946-01-03 An improved mechanical hammer

Publications (1)

Publication Number Publication Date
GB622964A true GB622964A (en) 1949-05-10

Family

ID=9702324

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32147A Expired GB622964A (en) 1946-01-03 1946-01-03 An improved mechanical hammer

Country Status (1)

Country Link
GB (1) GB622964A (en)

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