GB831653A - Improved apparatus for making perspective drawings - Google Patents

Improved apparatus for making perspective drawings

Info

Publication number
GB831653A
GB831653A GB26383/56A GB2638356A GB831653A GB 831653 A GB831653 A GB 831653A GB 26383/56 A GB26383/56 A GB 26383/56A GB 2638356 A GB2638356 A GB 2638356A GB 831653 A GB831653 A GB 831653A
Authority
GB
United Kingdom
Prior art keywords
arms
members
contact
tracing
parent specification
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
GB26383/56A
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.)
Anglo American Corp of South Africa Ltd
Original Assignee
Anglo American Corp of South Africa 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 Anglo American Corp of South Africa Ltd filed Critical Anglo American Corp of South Africa Ltd
Publication of GB831653A publication Critical patent/GB831653A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
    • B43L13/14—Devices for drawing in perspective
    • B43L13/147—Three-dimensional devices

Landscapes

  • Toys (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)

Abstract

831,653. Perspective drawing instru. ments. BARNETT, R. A., and ANGLO AMERICAN CORPORATION OF SOUTH AFRICA Ltd. Aug. 29, 1956 [Sept. 21, 1955], No. 26383/56. Addition to 776,111. Class 97(3) In apparatus according to the parent Specification the motion transmitting means between the drawing and tracing arms comprises members, attached to the arms, having surfaces biased into contact, the members being otherwise relatively movable, and such that the vertical spacing of the points of attachment of the members to the arms remains constant. The embodiment shown is the same as in the parent Specification except that the drawing and tracing arms 15, 32 pass through perpendicular slots 44, 45 in a member 40 pivoted on an axis A-A and are carried on pivot pins 46, 47. Arms 50, 51 project from the arms 15, 32 and carry cylindrical or conical members 48, 59, which may be rotatable and are held in contact by the weight of the arm 32 or by a spring.
GB26383/56A 1955-09-21 1956-08-29 Improved apparatus for making perspective drawings Expired GB831653A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA831653X 1955-09-21

Publications (1)

Publication Number Publication Date
GB831653A true GB831653A (en) 1960-03-30

Family

ID=25577073

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26383/56A Expired GB831653A (en) 1955-09-21 1956-08-29 Improved apparatus for making perspective drawings

Country Status (2)

Country Link
DE (1) DE1029573B (en)
GB (1) GB831653A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10300816A1 (en) 2003-01-10 2004-07-22 Basf Ag Thermal separation process between at least one gaseous and at least one liquid stream, at least one of which contains (meth) acrylic monomers

Also Published As

Publication number Publication date
DE1029573B (en) 1958-05-08

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