GSA GG-T-00673-1964 TRIANGLES DRAFTING ADJUSTABLE (PLASTIC)《制图三角板(塑料)》.pdf

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1、GG-T-00b73 bb m 777777Ll 001iL83Ll T m-. GG-T-o0673(CsA-S) January 22, 1964 INTERIM FEDERAL SPECIFICATION TRIANGLES, DAFMNG, ADJUSTABLE; (PUSTIC) This Interim Federal Specification was developed by the General Services Administration, Federal Supply Service, Washington, D. C. 20407, based upon curre

2、ntly available technical information. Federal agencies use it in procurement and forward recomniendations for changes to the prepariiig activity at the address shown above. It is reconmended that 1. SCOPE AND CLACSIFICATION 1.1 Scope. This interim specification covers adjustable plastic drafting tri

3、angles equipped with protractor elements. 1.2 Classification 1.2.1 Typec. Adjustable triangles shall be of the folloXing types as specified (see 6.2). Types: Type I - Clear, colorless, transparent triangles. Type II - Green tinted, transparent triangles. - 1.2.2 Sizes (see 3.2). 2. 2.1 Specification

4、s and standards. APPLICABLE SPECIFICATIONS, STANDARDS, AND OTHER PUBLICATIONS The following specifications and standarda, of the issues in effect on the waduatirrn raarks on the protractor. nie protractor elemnt shall be constructed of plastic mteial au cpecfied in 3.i and 6hallbe withln 0.010 inche

5、s of the thickness specified for t.11 m3 of the trlaagle (see 3.3.1). raluetable triangle shall consist of a base angle arm and an adjustable With the arm3 in a closed position, le adduritable trianglee shall be designed to allow adjustment of the arms to form 3.3.3. Triangle arms. Ihe triangle arra

6、s shall be constructed of transparent plastic mterial Minimum thickness shall not be less than 0.090 inches, and mimum The color of the arm shall be as indicated for 3.3.1.1 The adjustable tangle arm shall be securely fastened to the protractor elemnt with Ihe part of the adjustable We am extending

7、beyond the protractor element shall 3.3.1.2 Ihc base angle rn shall be pivoted to the protractor element to allow for !he part of the base angle arm extending beyond the A legible index merk shall be WLe index mark shall be of the Sam? 3.3.1.3 Protractor elemnt. The arc of the protractor element sha

8、ll have a nie aro of ths protractor elemnt shall be beveled and graduated in 1/2 degrees. Ihe numbers on nie numbers on the wer row shall read counter clockwise 50 degrees to Rie 50 degree mark number shall coincide with the 40 degree rriark number, and the All graduation marks and degree mark nWr s

9、hall coincide with the O degree mark number, Graduation marks and numbers Raised graduations and numbers projecting above the surface Graduations and numbers shall be plainly visible, 3.3.4 Clamping and lifting device. A threaded metal stud and insert with a durable The knob shall be of suitable 3.3

10、.5 Pivoting and fastening devices. Non-corrosive pivoting an fastening devices shall The pivoting device shall make a snug fit, without play, and shall allow free be used. adjuotmnt of the triangle arm. 3.k Fabriccation. All working edges of the adjustable triangles shall t! square and true. Al1 mgl

11、os SlizLb be accurate. Aia ourfacco fihai bo free from any defecto affecting cipparance or serviceability. stxraoth ,m otraight. .t;115? tially flat. 3.5 Finish. All. siirfaces ohall be srmoth ancl polished. All edges of the arms shall. be 3.6 Ideiitificatlon rarking. Vie narne or trade mrk of the m

12、ufacturer an the size of Licensed by Information Handling Services-3- Licensed by Information Handling Services!WILE 1 - Classification of Preparation for Delivery Defects Examhe Defects Markings (e*erior and interior) Omitted; incorrect; illegible; or improper size, location, sequence, or method of

13、 application Materialo Any component missing or damaged XOrkmatvJhip Inadequate application of components such as incomplete closure of container flaps, loose strapping, inadequate stapling. Bulging or distortion of container 5. PREPAR4!rIammT,vERY (Bbr civil agency procure for bidding purpoaeo are

14、available without charge at the General Sesdces Administration Regional Offices in Boston, New Yurk, Washington, D. C., Atlanta, Chicago, Kan8aS City, Mo., Dall and the fact that the Government may have formulated, furnished, or in any way supplied the said drawings, specifications, or other data is not to be regarded by implication or ohemise as in any manner licensing the holder or any other person or corporation, or conveying any rights or permission to manufacture, use, or sell any patented Invention that may in any way be related thereto, _. -Y Licensed by Information Handling Services