GB191316255A - Improvements in Wood Boring and Mortising Bits. - Google Patents

Improvements in Wood Boring and Mortising Bits.

Info

Publication number
GB191316255A
GB191316255A GB191316255DA GB191316255A GB 191316255 A GB191316255 A GB 191316255A GB 191316255D A GB191316255D A GB 191316255DA GB 191316255 A GB191316255 A GB 191316255A
Authority
GB
United Kingdom
Prior art keywords
mortising
augers
chisel
shank
bits
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
John William Caldwell
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 GB191316255A publication Critical patent/GB191316255A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G15/00—Boring or turning tools; Augers

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Abstract

16,255. Caldwell, J. W. July 15. Augers.-Twist augers of the type described in Specification 13,484/11 are provided with expansion cutters and are located within a hollow mortising-chisel with edges bevelled on the inside and shaped as shown in Fig. 9. The auger has the section shown in Fig. 1, to provide ample chip space, and the expansion cutter 10 has a roughened surface corresponding with a similar surface on the ciamping-pad 15. The cutting- lip 12 is formed at the extremity of a surface which is a continuation of the spiral surface of the shank. A fixed cutting-edge is continued by one thread of the double-threaded point 16 terminating as shown at 18. Side cutters 19, 23 are detachably secured in slots as shown. The chisel is mounted on a cage 30, Fig. 8. secured to the shank as shown in Fig. 1.
GB191316255D 1913-07-15 1913-07-15 Improvements in Wood Boring and Mortising Bits. Expired GB191316255A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191316255T 1913-07-15

Publications (1)

Publication Number Publication Date
GB191316255A true GB191316255A (en) 1914-04-30

Family

ID=32645636

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191316255D Expired GB191316255A (en) 1913-07-15 1913-07-15 Improvements in Wood Boring and Mortising Bits.

Country Status (2)

Country Link
FR (1) FR460814A (en)
GB (1) GB191316255A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2453164A (en) * 2007-08-13 2009-04-01 Chung-Liang Liao Multiple spiral groove twist drill with leading screw point
CN111687972A (en) * 2020-06-05 2020-09-22 马鞍山市谷庆门业有限公司 End milling cutter is used in wood system furniture production and processing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2453164A (en) * 2007-08-13 2009-04-01 Chung-Liang Liao Multiple spiral groove twist drill with leading screw point
CN111687972A (en) * 2020-06-05 2020-09-22 马鞍山市谷庆门业有限公司 End milling cutter is used in wood system furniture production and processing

Also Published As

Publication number Publication date
FR460814A (en) 1913-12-12

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