GB420818A - Improvements in educational or advertising apparatus - Google Patents

Improvements in educational or advertising apparatus

Info

Publication number
GB420818A
GB420818A GB1508533A GB1508533A GB420818A GB 420818 A GB420818 A GB 420818A GB 1508533 A GB1508533 A GB 1508533A GB 1508533 A GB1508533 A GB 1508533A GB 420818 A GB420818 A GB 420818A
Authority
GB
United Kingdom
Prior art keywords
class
frame
educational
rollers
advertising apparatus
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
GB1508533A
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.)
FREDERICK THOMAS COWLEY
Original Assignee
FREDERICK THOMAS COWLEY
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 FREDERICK THOMAS COWLEY filed Critical FREDERICK THOMAS COWLEY
Priority to GB1508533A priority Critical patent/GB420818A/en
Publication of GB420818A publication Critical patent/GB420818A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B97/00—Furniture or accessories for furniture, not provided for in other groups of this subclass
    • A47B97/02—Devices for holding or supporting maps, drawings, or the like, including means for preventing rolling-up
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F11/00—Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position
    • G09F11/24—Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position the advertising or display material forming part of a moving band, e.g. in the form of perforations, prints, or transparencies
    • G09F11/29—Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position the advertising or display material forming part of a moving band, e.g. in the form of perforations, prints, or transparencies of a band other than endless

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Protection Of Plants (AREA)
  • Drawing Aids And Blackboards (AREA)

Abstract

420,818. Blackboards. COWLEY, F. T., 24, Harpenden Road, Manor Park, London. May 25, 1933, No. 15085. [Class 146 (ii)] [See also Group XVIII] A non-endless band C, comprising a blackboard, is mounted on two rollers located each in a recess between the ends of a frame A and a supporting panel B. The rollers are operated by handles passing through bearing holes in the frame A and engaging the roller spindles by pin and slot connection. Reference has been directed by the Comptroller to Specification 1007/14, [Class 146 (ii)].
GB1508533A 1933-05-25 1933-05-25 Improvements in educational or advertising apparatus Expired GB420818A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1508533A GB420818A (en) 1933-05-25 1933-05-25 Improvements in educational or advertising apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1508533A GB420818A (en) 1933-05-25 1933-05-25 Improvements in educational or advertising apparatus

Publications (1)

Publication Number Publication Date
GB420818A true GB420818A (en) 1934-11-26

Family

ID=10052756

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1508533A Expired GB420818A (en) 1933-05-25 1933-05-25 Improvements in educational or advertising apparatus

Country Status (1)

Country Link
GB (1) GB420818A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107962190A (en) * 2017-12-05 2018-04-27 李理 A kind of lathe process easy to use drawing apparatus for placing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107962190A (en) * 2017-12-05 2018-04-27 李理 A kind of lathe process easy to use drawing apparatus for placing
CN107962190B (en) * 2017-12-05 2019-04-09 深圳市坤展塑胶五金有限公司 A kind of lathe process easy to use drawing apparatus for placing

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