GB475982A - Improvements in or relating to nut-tapping machines - Google Patents

Improvements in or relating to nut-tapping machines

Info

Publication number
GB475982A
GB475982A GB21907/36A GB2190736A GB475982A GB 475982 A GB475982 A GB 475982A GB 21907/36 A GB21907/36 A GB 21907/36A GB 2190736 A GB2190736 A GB 2190736A GB 475982 A GB475982 A GB 475982A
Authority
GB
United Kingdom
Prior art keywords
tap
nuts
nut
spindle
driving
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
GB21907/36A
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.)
ACCURATE MACHINERY DEVELOPERS
Original Assignee
ACCURATE MACHINERY DEVELOPERS
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 ACCURATE MACHINERY DEVELOPERS filed Critical ACCURATE MACHINERY DEVELOPERS
Publication of GB475982A publication Critical patent/GB475982A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G1/00—Thread cutting; Automatic machines specially designed therefor
    • B23G1/16—Thread cutting; Automatic machines specially designed therefor in holes of workpieces by taps
    • B23G1/18—Machines with one working spindle

Abstract

475,982. Tapping nuts. ACCURATE MACHINERY DEVELOPERS, Inc. Aug. 8, 1936, No. 21907. Convention date, Aug. 8, 1935. [Class 83 (iii)] A nut-tapping machine comprises a stationary tap 11, Fig. 2, a nut-driving spindle 16, having a longitudinal bore, which receives the tap and through which the nuts are moved lengthwise of the tap, and having lands 19 arranged concentrically around the tap to engage the sides of the nuts, and also having passages 18 extending from its bore to its periphery through which chips may pass, and a rotary driving head 23 on which the spindle is mounted and which is provided with a flaring bore from which chips are discharged by the action of centrifugal force. The nuts are fed along a guide at rightangles to the spindle of the tapper and are pushed into the driving spindle by a hollow member 14, shunting pins 21 serve to bring the nut into alignment with the driving lands which engage the rear sides of the nut corners, Fig. 1. The driving head 23 is mounted in a single-row ball bearing and driven by a chainbelt 35. The outwardly flaring bore 25 of the head directs the chips to a casing 41 integral with the housing 10, a spout 42 serving as an outlet for coolant which is supplied through the hollow pusher 14 and the pipe 26. The shank 43 of the tap is alternately held at different points to enable the nuts to move along the tap.
GB21907/36A 1935-08-08 1936-08-08 Improvements in or relating to nut-tapping machines Expired GB475982A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US475982XA 1935-08-08 1935-08-08

Publications (1)

Publication Number Publication Date
GB475982A true GB475982A (en) 1937-11-30

Family

ID=21949879

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21907/36A Expired GB475982A (en) 1935-08-08 1936-08-08 Improvements in or relating to nut-tapping machines

Country Status (1)

Country Link
GB (1) GB475982A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2520645A1 (en) * 1982-02-04 1983-08-05 Holm J H Holding METHOD FOR FORMING TAPPING IN A HOLLOW BODY

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2520645A1 (en) * 1982-02-04 1983-08-05 Holm J H Holding METHOD FOR FORMING TAPPING IN A HOLLOW BODY

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