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GB529217A - Improvements in pressure applying devices for small portable drilling machines - Google Patents

Improvements in pressure applying devices for small portable drilling machines

Info

Publication number
GB529217A
GB529217A GB1552239A GB1552239A GB529217A GB 529217 A GB529217 A GB 529217A GB 1552239 A GB1552239 A GB 1552239A GB 1552239 A GB1552239 A GB 1552239A GB 529217 A GB529217 A GB 529217A
Authority
GB
United Kingdom
Prior art keywords
frame
lever
rack
link
lower limb
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
GB1552239A
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.)
GILBERT BELBIN
Original Assignee
GILBERT BELBIN
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 GILBERT BELBIN filed Critical GILBERT BELBIN
Priority to GB1552239A priority Critical patent/GB529217A/en
Publication of GB529217A publication Critical patent/GB529217A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
    • B25H1/0021—Stands, supports or guiding devices for positioning portable tools or for securing them to the work
    • B25H1/0057—Devices for securing hand tools to the work

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)

Abstract

529,217. Drilling-machines. BELBIN, G. P., and BELBIN, G. May 25, 1939, No. 15522. [Class 83 (iii)] In means for feeding a portable drilling machine g, an arm b on the machine is attached to an L-shaped frame a which carries a workengaging pad f<SP>1</SP> on a rack f slidable in the lower limb of the frame in line with the drill spindle. A further bracket i assists in securing the machine to the frame. A hand lever c is pivoted to the frame and is connected by a link d to a lever e pivoted in the lower limb of the frame and provided with a toothed segment engaging the rack f, so that the operator may exert a squeezing movement between the arm b and lever c to feed the drill relatively to the work. The levers are arranged with a mechanical advantage as shown to increase the feeding pressure, and if this does not produce sufficient movement of the rack f the link d may be connected to the lever e by a pawl and ratchet to allow a number of strokes to be given to the lever c. The frame a is formed in two parts and the link d is made telescopic to enable the lower limb to be adjusted relatively to the drilling machine.
GB1552239A 1939-05-25 1939-05-25 Improvements in pressure applying devices for small portable drilling machines Expired GB529217A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1552239A GB529217A (en) 1939-05-25 1939-05-25 Improvements in pressure applying devices for small portable drilling machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1552239A GB529217A (en) 1939-05-25 1939-05-25 Improvements in pressure applying devices for small portable drilling machines

Publications (1)

Publication Number Publication Date
GB529217A true GB529217A (en) 1940-11-15

Family

ID=10060608

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1552239A Expired GB529217A (en) 1939-05-25 1939-05-25 Improvements in pressure applying devices for small portable drilling machines

Country Status (1)

Country Link
GB (1) GB529217A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0450135A1 (en) * 1990-04-05 1991-10-09 MV MARKETING + VERTRIEBS GMBH WIELÄNDER &amp; SCHILL. Hand-drill for drilling-out of spot-welds
US5314271A (en) * 1992-12-03 1994-05-24 Christiano Nicholas W Portable drill guide

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0450135A1 (en) * 1990-04-05 1991-10-09 MV MARKETING + VERTRIEBS GMBH WIELÄNDER &amp; SCHILL. Hand-drill for drilling-out of spot-welds
US5314271A (en) * 1992-12-03 1994-05-24 Christiano Nicholas W Portable drill guide

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