GB1311863A - Hammers - Google Patents

Hammers

Info

Publication number
GB1311863A
GB1311863A GB1311863DA GB1311863A GB 1311863 A GB1311863 A GB 1311863A GB 1311863D A GB1311863D A GB 1311863DA GB 1311863 A GB1311863 A GB 1311863A
Authority
GB
United Kingdom
Prior art keywords
holder
head
striking face
hammer
plastics
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
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.)
THRO HAMMER CO Ltd
Original Assignee
THRO HAMMER CO Ltd
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 THRO HAMMER CO Ltd filed Critical THRO HAMMER CO Ltd
Publication of GB1311863A publication Critical patent/GB1311863A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25DPERCUSSIVE TOOLS
    • B25D1/00Hand hammers; Hammer heads of special shape or materials
    • B25D1/02Inserts or attachments forming the striking part of hammer heads

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

1311863 Hammers THOR HAMMER CO Ltd 1 Oct 1970 [20 Sept 1969] 46444/69 Heading B4C A hammer includes a hammer head of relatively hard metal e.g. steel or maleable iron having a threaded portion, a striking face of a material which is relatively softer than the metal of the head, and an intermediate element comprising a cup-like holder in which the striking face is secured, the intermediate element including a thread formation of plastics material adapted to co-act with the threaded portion of the head. As illustrated in Fig. 1 each striking face 12 is secured in the holder 13 by peening the edge 14, and an externally threaded plastics member 16 is received in a screw threaded bore 15 in the head. Rotation of the member 16 relative to the holder 13 is prevented by radially extending projections 18 engaging in complementary recesses in the holder 13. To prevent undue stress on the member 16 a ring (19) (Fig. 4, not shown) may be located in annular grooves (20, 21) in the head and holder 13 respectively. Alternatively an annular projection on one of the head and holder 13 may engage with an annular groove in the other. The member 16 may be cemented or adhesively secured in the holder 13, and a washer, e.g. of plastics may be positioned between the end face of the head and the base of the holder. Examples of materials for the striking face are listed in the Specification.
GB1311863D 1969-09-20 1969-09-20 Hammers Expired GB1311863A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4644469 1969-09-20

Publications (1)

Publication Number Publication Date
GB1311863A true GB1311863A (en) 1973-03-28

Family

ID=10441297

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1311863D Expired GB1311863A (en) 1969-09-20 1969-09-20 Hammers

Country Status (1)

Country Link
GB (1) GB1311863A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0069261A1 (en) * 1981-07-04 1983-01-12 Wera-Werk Hermann Werner GmbH & Co. Hammer with a central portion carrying the handle inserted therein
GB2219762B (en) * 1988-06-18 1992-12-02 Thor Hammmer Co Ltd Dual purpose hammer and hammer head therefore

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0069261A1 (en) * 1981-07-04 1983-01-12 Wera-Werk Hermann Werner GmbH & Co. Hammer with a central portion carrying the handle inserted therein
GB2219762B (en) * 1988-06-18 1992-12-02 Thor Hammmer Co Ltd Dual purpose hammer and hammer head therefore

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees