GB431589A - Improvements in and relating to recording apparatus - Google Patents

Improvements in and relating to recording apparatus

Info

Publication number
GB431589A
GB431589A GB557234A GB557234A GB431589A GB 431589 A GB431589 A GB 431589A GB 557234 A GB557234 A GB 557234A GB 557234 A GB557234 A GB 557234A GB 431589 A GB431589 A GB 431589A
Authority
GB
United Kingdom
Prior art keywords
carriage
screw
moving
opposite direction
opposite
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
GB557234A
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.)
JAMES ANDREWS MCGEACHY
Original Assignee
JAMES ANDREWS MCGEACHY
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 JAMES ANDREWS MCGEACHY filed Critical JAMES ANDREWS MCGEACHY
Priority to GB557234A priority Critical patent/GB431589A/en
Publication of GB431589A publication Critical patent/GB431589A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/72—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using ultrasonic, sonic or infrasonic waves

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Recording Measured Values (AREA)

Abstract

431,589. Recording-apparatus; echosounding apparatus. McGEACHY, J. A., and WOOD, A. B., Admiralty Research Laboratory, Teddington, Middlesex, and DRYSDALE, C. V., Admiralty, London. Feb. 20, 1934, No. 5572. [Class 106 (iv)] [See also Group XXXVIII] In a recorder in which the marking member is reciprocated across the record surface, the marking member is mounted on a carriage which moves along two parallel screws and has a device engaging each screw alternately, the change of engagement being made at the end of each half cycle of reciprocation, one screw thus driving the carriage in one direction and the other in the opposite direction. The screws may be of the same hand and rotating in opposite directions, or of opposite hands and rotating in the same direction. The invention may be used in echo-sounding apparatus. The carriage 2 supports the marker 1 which is moved electromagnetically to press a tape 13 on to the record surface. The carriage 2 has a slidable pin 5 which engages one screw 3 when the carriage is moving in one direction and the other screw 4 when moving in the opposite direction. The change of engagement is caused by the end of the screw thread pushing the pin through the carriage. The carriage may close contacts 6A, 6B when moving from left to right but not when moving in the opposite direction, since the foot 6E which is engaged by the carriage is pivoted. The contacts may be placed in any one of several holes in the bar 8, and may be turned round so that they are closed by the carriage in the opposite direction of travel. In an electrochemical recorder, the marker 1, Fig. 5, is removed from the record during the return of the carriage, this being effected by the rocking of a lever 16 by a fixed abutment. The lever is held in its two positions by a spring 17 and stops 19, 20. Specification 375,375, [Group XXXVIII], is referred to.
GB557234A 1934-02-20 1934-02-20 Improvements in and relating to recording apparatus Expired GB431589A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB557234A GB431589A (en) 1934-02-20 1934-02-20 Improvements in and relating to recording apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB557234A GB431589A (en) 1934-02-20 1934-02-20 Improvements in and relating to recording apparatus

Publications (1)

Publication Number Publication Date
GB431589A true GB431589A (en) 1935-07-11

Family

ID=9798633

Family Applications (1)

Application Number Title Priority Date Filing Date
GB557234A Expired GB431589A (en) 1934-02-20 1934-02-20 Improvements in and relating to recording apparatus

Country Status (1)

Country Link
GB (1) GB431589A (en)

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