GB519012A - Improvements in driving gears adapted to be operated by a reciprocatory power device - Google Patents

Improvements in driving gears adapted to be operated by a reciprocatory power device

Info

Publication number
GB519012A
GB519012A GB1713038A GB1713038A GB519012A GB 519012 A GB519012 A GB 519012A GB 1713038 A GB1713038 A GB 1713038A GB 1713038 A GB1713038 A GB 1713038A GB 519012 A GB519012 A GB 519012A
Authority
GB
United Kingdom
Prior art keywords
arm
pawl
projection
wheel
ratchet wheel
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
GB1713038A
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.)
Babcock International Ltd
Original Assignee
Babcock and Wilcox 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 Babcock and Wilcox Ltd filed Critical Babcock and Wilcox Ltd
Priority to GB1713038A priority Critical patent/GB519012A/en
Publication of GB519012A publication Critical patent/GB519012A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G15/00—Details
    • F28G15/04—Feeding and driving arrangements, e.g. power operation
    • F28G15/06—Automatic reversing devices

Abstract

519,012. Soot blowers. BABCOCK & WILCOX, Ltd., and HANDOLL, P. G. June 9, 1938, No. 17130. [Class 99 (ii)] [Also in Group XXIV] In an automatically-reversible ratchet gearing applicable to the drive of a fluid-heater cleaner adapted to be projected for operation from a retracted position to a blowing position and then to ba withdrawn'to the retracted position, a pair of pawls 1, 2 forming an integral structure are pivoted on a bolt 7 carried by an arm 4 adapted to be oscillated. The pawl structure is biassed by a spring so that one or other pawl is in driving engagement with a ratchet wheel 3 about the axis of which the arm 4 oscillates. The pawls are biassed by a spring plunger in a cup-shaped member 13 on an extension 12 of the pawl structure which plunger has a wedge-shaped end 15, Fig. 3, adapted to engage a similarly shaped projection 11 on the upper end of the arm 4. The reversing means comprises an internally-toothed wheel 17 driven by a single tooth 23 on the axle of the ratchet wheel. The wheel 17 carries an adjustable stop 26 adapted to engage a tail-piece 24 on the pawl structure. Towards the end of the travel produced by the pawl 1 by which the blower is projected, the speed of drive of the ratchet wheel is reduced by a shroud 28 carried by an arm 27 having a projection 31 adapted to be engaged by an axial projection 33 extending over 60 degrees of the circumference of the wheel 17. Normally during the idle stroke, the pawl passes over three teeth, but towards the end of the travel of the ratchet wheel, the shroud is moved by the projection 33 so that the pawl passes over only two teeth and ultimately over only one tooth, the oscillation of the arm 4 remaining constant. On reversal, the projection 33 moves the shroud 28 to its ineffective position. The arm 4 may be oscillated by a power device such as that described in Specification 437,801. Specification 519,225 also is referred to.
GB1713038A 1938-06-09 1938-06-09 Improvements in driving gears adapted to be operated by a reciprocatory power device Expired GB519012A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1713038A GB519012A (en) 1938-06-09 1938-06-09 Improvements in driving gears adapted to be operated by a reciprocatory power device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1713038A GB519012A (en) 1938-06-09 1938-06-09 Improvements in driving gears adapted to be operated by a reciprocatory power device

Publications (1)

Publication Number Publication Date
GB519012A true GB519012A (en) 1940-03-14

Family

ID=10089816

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1713038A Expired GB519012A (en) 1938-06-09 1938-06-09 Improvements in driving gears adapted to be operated by a reciprocatory power device

Country Status (1)

Country Link
GB (1) GB519012A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1149582B (en) * 1953-04-10 1963-05-30 Sulzer Ag Ratchet coupling
US4098135A (en) * 1975-06-12 1978-07-04 Keiper K.G. Free wheeling drive arrangement for a turnable member, especially for adjusting the position of backrests or window panes in automotive vehicles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1149582B (en) * 1953-04-10 1963-05-30 Sulzer Ag Ratchet coupling
US4098135A (en) * 1975-06-12 1978-07-04 Keiper K.G. Free wheeling drive arrangement for a turnable member, especially for adjusting the position of backrests or window panes in automotive vehicles

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