GB395717A - Improvements in or relating to revolution-indicating instruments - Google Patents

Improvements in or relating to revolution-indicating instruments

Info

Publication number
GB395717A
GB395717A GB117832A GB117832A GB395717A GB 395717 A GB395717 A GB 395717A GB 117832 A GB117832 A GB 117832A GB 117832 A GB117832 A GB 117832A GB 395717 A GB395717 A GB 395717A
Authority
GB
United Kingdom
Prior art keywords
lamps
revolution
speed
spindle
brush
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
GB117832A
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.)
CECIL JAMES MORTON
British Thomson Houston Co Ltd
Original Assignee
CECIL JAMES MORTON
British Thomson Houston Co 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 CECIL JAMES MORTON, British Thomson Houston Co Ltd filed Critical CECIL JAMES MORTON
Priority to GB117832A priority Critical patent/GB395717A/en
Publication of GB395717A publication Critical patent/GB395717A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P13/00—Indicating or recording presence, absence, or direction, of movement
    • G01P13/02—Indicating direction only, e.g. by weather vane
    • G01P13/04—Indicating positive or negative direction of a linear movement or clockwise or anti-clockwise direction of a rotational movement
    • G01P13/045—Indicating positive or negative direction of a linear movement or clockwise or anti-clockwise direction of a rotational movement with speed indication

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

395,717. Revolution-direction indicators with revolution counters. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, JEWITT, D. E., 17, Hillmorton Road, Rugby, GRIFFITHS, L., 78, Biggin Hall Crescent, and MORTON, C. J., Stanway, Wainbody Avenue, both in Coventry. Jan. 14, 1932, No. 1178. [Class 106 (iii).] A revolution-direction indicator combined with a revolution counter and means for ascertaining the speed of revolution comprises a spindle driven by electric motor or otherwise at a speed proportional to the speed of a propeller shaft or other mechanism and having fixed to it mechanism for electrically operating a counting arrangement, for lighting one or other of two lamps according to the direction of rotation and for lighting in succession lamps arranged in a circle. The spindle 1 rotates the brush holder 11 with brush 2 wiping the contacts 3 to light the lamps 20 in succession, rotates the cam 5 to periodically make the contact device 6 to energize the solenoid 7 to actuate a known counting device and frictionally moves the switch-over member 4 one way or the other to light one of the lamps 21, 22 according to the direction of rotation of the spindle 1. The speed can be ascertained by counting the number of lamps 20 lit up in a known period of time. Fig 1 (Comp.) shows a compact arrangement for the mechanism, a terminal 12 to the circular group of lamps, a fixed terminal brush 17 for the member 4 and a terminal brush 19 for the brush 2 being provided. As shown in the drawings the spindle 1 is driven at the same speed as the shaft under investigation, but if the spindle, for example, is driven at one-sixth of the speed, then the cam 5 may have six projections and the contacts may number 36, every sixth contact being connected together. According to the Provisional Specification the lamps 20 may be replaced by audible means. Specification 243,499, [Class 106 (iii), Fares &c.], is referred to.
GB117832A 1932-01-14 1932-01-14 Improvements in or relating to revolution-indicating instruments Expired GB395717A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB117832A GB395717A (en) 1932-01-14 1932-01-14 Improvements in or relating to revolution-indicating instruments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB117832A GB395717A (en) 1932-01-14 1932-01-14 Improvements in or relating to revolution-indicating instruments

Publications (1)

Publication Number Publication Date
GB395717A true GB395717A (en) 1933-07-14

Family

ID=9717507

Family Applications (1)

Application Number Title Priority Date Filing Date
GB117832A Expired GB395717A (en) 1932-01-14 1932-01-14 Improvements in or relating to revolution-indicating instruments

Country Status (1)

Country Link
GB (1) GB395717A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2922994A (en) * 1957-03-18 1960-01-26 F L Moseley Co Electrical signal generators
GB2260612A (en) * 1991-10-19 1993-04-21 Walterscheid Gmbh Jean Assembly for identifying the direction of power in torque transmission

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2922994A (en) * 1957-03-18 1960-01-26 F L Moseley Co Electrical signal generators
GB2260612A (en) * 1991-10-19 1993-04-21 Walterscheid Gmbh Jean Assembly for identifying the direction of power in torque transmission
FR2682759A1 (en) * 1991-10-19 1993-04-23 Walterscheid Gmbh Jean ASSEMBLY FOR DETECTING THE DIRECTION OF POWER TRANSMISSION DURING TORQUE TRANSMISSION.
US5341675A (en) * 1991-10-19 1994-08-30 Kaempf Klaus Assembly for identifying the direction of power in the case of torque transmission

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