GB191421771A - Improvements in or relating to Drilling and Boring Apparatus. - Google Patents

Improvements in or relating to Drilling and Boring Apparatus.

Info

Publication number
GB191421771A
GB191421771A GB191421771DA GB191421771A GB 191421771 A GB191421771 A GB 191421771A GB 191421771D A GB191421771D A GB 191421771DA GB 191421771 A GB191421771 A GB 191421771A
Authority
GB
United Kingdom
Prior art keywords
sleeve
motor
speed
nut
spring
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
William Ginns Bambridge
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 GB191421771A publication Critical patent/GB191421771A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B3/00—Rotary drilling
    • E21B3/02—Surface drives for rotary drilling
    • E21B3/035—Surface drives for rotary drilling with slipping or elastic transmission

Abstract

21,771. Bambridge, W. G. Oct. 30. Drilling-machines.-In a machine for drilling rock, stone, metal, &c., and of the kind in which the tool spindle is driven from a motor, preferably an electric motor, through planetary gearing, the planet-pinion carrier is normally held from rotation by a frictional clamp, but may slip back during excessive load on the tool, so that the speed of the tool spindle maybeautomatically varied according to the variation of the resistance, without varying the speed of the motor. The drill 4 is feathered to a steel sleeve 3 carrying the internally toothed ring 24 of an epicyclic gear, the planet-pinions 21 of which are mounted on the flange of a brass sleeve 2. The drive is communicated from the motor 15 through a pinion 17 and gears 18, 20 carried by a bush 19 loosely mounted on the sleeve 2. The sleeve 2 is normally held from rotation by a spring band 25, the tension on which is adjusted by a nut 30; but when abnormal resistance is encountered, the sleeve 2 can rotate and so reduce the speed of the drill, while maintaining the speed of the motor constant without overloading. A spring may be provided between the nut and washer 31 to take up wear. The spring band may be replaced by a clamp consisting of a collar, block, &c. formed in sections and clamped to the sleeve by bolts and nuts, with springs to take up wear. The feed is imparted by a two-part nut 7 hinged at 8 on a spring cap 9, which is frictionally held on a brass cap 14 on the end of the bearing 1 by an adjustable tightening-strap 10 so as to vary the feed.
GB191421771D 1914-10-30 1914-10-30 Improvements in or relating to Drilling and Boring Apparatus. Expired GB191421771A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191421771T 1914-10-30

Publications (1)

Publication Number Publication Date
GB191421771A true GB191421771A (en) 1915-10-07

Family

ID=32586675

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191421771D Expired GB191421771A (en) 1914-10-30 1914-10-30 Improvements in or relating to Drilling and Boring Apparatus.

Country Status (1)

Country Link
GB (1) GB191421771A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2434120A (en) * 1944-03-10 1948-01-06 Joy Mfg Co Drilling apparatus
US4453868A (en) * 1981-08-03 1984-06-12 Winslow/Mcdowell, Inc. Air-operated, hydraulically-controlled drillmotor
US4480700A (en) * 1982-04-05 1984-11-06 Sargent Industries, Inc. Mechanical differential-rate counterboring tool

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2434120A (en) * 1944-03-10 1948-01-06 Joy Mfg Co Drilling apparatus
US4453868A (en) * 1981-08-03 1984-06-12 Winslow/Mcdowell, Inc. Air-operated, hydraulically-controlled drillmotor
US4480700A (en) * 1982-04-05 1984-11-06 Sargent Industries, Inc. Mechanical differential-rate counterboring tool

Similar Documents

Publication Publication Date Title
GB191421771A (en) Improvements in or relating to Drilling and Boring Apparatus.
US2891426A (en) Method of metal drilling
US1749861A (en) Pipe cutter
US3068727A (en) Multiple cutting tool head
US2586842A (en) Drilling apparatus
US2453825A (en) Tailstock lathe for drilling
US2838962A (en) Machine tool
GB503867A (en) Drilling device with automatic advance of the tool
US708881A (en) Boring and drilling machine.
US1003340A (en) Harrow-disk sharpener.
US520142A (en) Drilling-machine
US2140957A (en) Milling attachment
US578483A (en) Automatic friction tapping attachment
DE881141C (en) Device for holding non-rotating tools
GB191012278A (en) An Improved Ratchet Drill.
GB225961A (en) Improvements in or relating to combined drilling and grinding machines
GB191023918A (en) Improvements in or relating to Rock-cutting Mechanism.
GB414226A (en) Boring machine
US341207A (en) Metal turning lathe
US402924A (en) Portable drilling-machine
US1298963A (en) Internal grinder or mill for use in lathes, boring, drilling, and other machine tools.
GB650643A (en) Improvements in or relating to rotary drills for mounting on vehicles
US687025A (en) Boring and drilling machine.
SU272790A1 (en) Vertical gear hobber
SU1459766A1 (en) Planetary reeling machine