AIR FORCE MIL-P-4278 C-1959 PRINTER PROJECTION PHOTOGRAPHIC TYPE E-1《E-1型照相的投影式打印机》.pdf

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1、MILITAF SPECIFIC TLON 1, SCOPE c 1.3 This specification covers one type of fixed focus autmstic enlarging printer for printing 35 millimeter singe frme, 70 millimeter, and saineh roll negatives, designated Typ E-l. both step, repeat, and continuous modes of printing. The printer is intended for use

2、in , 2. APPLICABLF: DOCUMENTS 2.1 Th following documents, of the issue in effect on date of invitathn for bids, form a part of this specification. SPECIFICATIONS Federal L-F-333 CC-M-636 NI?-P-51 5 QQ-P-416 Et-L-58 . TT-P-636 iiitary * . MIL-P- . MIL-Fi32 MIL-V-173 . . . . y: , :. _ I Film, mio agra

3、phic, %,*m-Picture (Black and .- hi, Cadmium (Electrodeposited) Lacqu2r; Spraying, Clear and Pigmented (General Use) Primer Coating, Synthetic, Wood and Ferrous MetESl Film, Photographic, Aerial, Blac k-and-WhL te Preservation, Methods of Varnish, Moisture-And Fungus-Resistant, For the Treatment of

4、Carnuunicatians, Electronic, And c: c:.:.:; c * . I . . .- ,.- . ,._._ .- ,_-. C .I._. -.I-.- -. ,._ .-. . , * . I.-_ -_- .-.-.-. . - . . “ _. - .-.- - . p Selection of Materias, Interference Control Requirements, Aeronnuticd. Drawings, if Scale, Overlay, Radar Printing, Type C, C)i=ri;lfne 0% Scale

5、, OverXay, Radar Printing, Typ D, axtlim E MRgazinc - Film, Photogmphic, Processing 14aM.m Printer - Projection Photographic, 9-112 and 18-112 Inch 9-l/2 Inch, Assembly of ,. . L . .- . . , . I -. . tz: . _.- ,- - . L_._. 1.- .- - ,. . . . - - _.-I. . -. . I._ . . 55017802 Outline Of - FUBLICATiONS

6、Air ForceLNavy Aeronautical Bulletins - -. . J Guide for the Use of Lubricants, Fluids in Aircraft (Copies with specific procurement functions should be obtained raa the procuring activity OF 88 directed by the contracting officer.) - . ._._-. . . r ._.I . - . .- . * -. . L . . of docments required

7、by contractors in connection v 2.2 ther publics.tions,- The following documents form a part of this specification. invitation for bids shall apply. Vnlcss otherwise indicated, the iSSUe in effect Qn dcg% sf . . . : . .l. . . , . . . I_ . . “ _._.- . . . .-. . . . . 1.1. .- . . . . . . -.- _.-._I ._-

8、.-l _._- L_ - . _.-.-.- . . ,. . -. . -. . . . .“ . - -_ -. -.-. . - , _-.- . . . _._. . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-f . . . . . . . . _ -_.-_-.- . . - . .- .-. _._. . _-_+ . i MIL-PJc of the autcmatlc exposure control system, and

9、 shall have a scale calibrated in doubles, half doubles and quarter doubles to exposure with a range of il double amund 8 zero point for printing on projection variabla contrast printing papers. . L - 3.8.2.4 Ekposure ovcrridc control.- To properly print abnormal negatives such as those of wooded ar

10、eas, snow scenes, or desert areas, an exposure override control shall be prWIded to permit over-exposwte or under exposwe as desired. increments of exposure with a range of f2 doubles around a zero point for The control sha be graduated in double and half double printing nozmal negatives . 3.8.2.5 C

11、ontrast control.- Contra switch control, the printing light shall be turned off and the filter wheel shall return to the filter Getting that has been selected on the contrast control Uial. 3.8.2.6 Cycle start.- A push button type control shall bk provided on the control panel for starting the printe

12、r for the step and repeat, and continuous pxdnting modes of operation. 3.8.2.7 Cycle stop.- A push button type control-nball be provided on the control panel for stopping the printer for the s%ep and and repeat, continuous printing modes of operation. 3.8.2.8 Overlay printing light switch.- A switch

13、 shall the printer for turning on and off the overlay printing be prodded lifit . on . IL: . . _._ _, ,._- . . -._. . . I p. . . . , . - . . . -_ I .t . -.-. . I I , . . . . . . , . *-._ ,_ ) , , . p . , ,% I -,- Provided by IHSNot for ResaleNo reproduction or networking permitted without license fr

14、om IHS-,-,-I; MIL-P-427C 67 777770b 0347753 b MIL-P-4278C (USAF) - . . _.-._ 3.8.2.9 Paper warning control.- A switch shall b? located an the control panel for shutting off the 5O-foot warning buzzer indicatiing when 50 feet of piper remains in t;b feed,epool. be an indicator light that wiU be ilfmi

15、nated at such time when only 50 feet of paper, or less, remalns on the spool. 3.8.2.10 Positive material opration indicator. - An inoicator Bight shr;ll . be located on the control panel that will blink on ad off whenever the paper material io being advanced. -. 1, : d Also located oh the oontrul pa

16、ncl SW . - .d 7 1 . . -_ -. I. _ . _ 3.8.2.1.1 Negative advance.- A push button control SW be located on the control panel for advancing the negative materials. the push button control, the operator shall avance the negative materid one irane. advance the 33-millimeter single frme negative materials

17、 Irme by frame at approximately 5 fest per mirrute, 70-millimeter negativr? materials frme by frame at approximately 15 feet per minute md Ciwinch negative materiaif. frma 137 By maentarily pRaeing By con+induusly pressing the push button control, the operator shat: frame at approximately 30 feet pe

18、r minute. LI 3.8.2.11.1 Negative direction control . - A double-throw toggle ty-p BviLCh su1 be located on the control panel to control the direction of trawl of the negative materials. When te toggle switch is actuated to the the negative material shall be allowed to be amced fm left to fight which

19、 shall be the fornaid direction of travel. actuated to the left, the negative materials shall be diloved to be advmced from right to left which ohal.1 bo the reverse direction of trausl, poc!.tAon on the switch ohall be the off pooition and shall ndw the negative advance control inoperative, 3.8.2.1

20、1.2 Negative framing control.- A double-throw, center-off, momentaq contact swltch shall be located on the control panel for framing the . negative material. material shall advance at a continuous rate of speed equal to that.used for continuous printing modes of operation. When the switch i8 actcate

21、d ,to %he left, the negative material shall advance in the rever6.e direction at the same continuous rate of speed. 3.8.2.12 Printing mode switch.- A printing mode switch shall be Iczcatied on the control panel for celecting the eight different modes OP printing opration. ?hen the selector switch is

22、 set for any of the ef system shall handle 35 millimeter spls in accormce with MS24320, 70 millimeter spools in accordance with Y624343-5, and 5 inch spools in accordance with Part No. 51Ci7848-3 3.8.3.1.1.1 The negative material shall be transported in either direction throm the system Kithout scra

23、tching or abrading the emulsion cr base, or teari.ng the perforations. . When printing in continuous modes of operation, /% K- . , c i-_/ _-_.- . . . .- 1 . .-_ _. . . -. . . . . I . . . . . t . . . -I.- ,:.-* F . I . , . ,. L_._ - *- . . . ,- .i_-. r-:.r.z . . :. -. ,. _- _.-. r. ) . . , t;:.:z:. 1

24、: E:. , . -.- . . . . 1- . ,. . I,: . . . . . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- .- - . ,_. . . . -_- - f i- ci v -. . .- . . . l MIL-P-YZ78C 67 7779706 03g7753 T W L. . . . . . .- - . - -_.-.-. .- .-. -_ - I.- MIL-P path. to the takeup

25、 spool. either direction. masks for framing the three negative formats. The mask.size for 35 millinetes single frame negative shall be 17 by 23.5 millimeters; for 7 millimeter negatives it shall be 2.X) by 2.X) itrches; and for 5-inch negatives it shsfl .; be 4-7/16 by 4-7/16 inches. . . ._._I_. .-.

26、 . .- - .- . -_.-.-r I. .- - c:;.-:.z: Five inch aerial. ,_._ - I . ,. . , .- . . -. , _-_, , .- . -. . - _- . ,.- . .-. The negative materials shall be advanced rnmuo0 80 68 o 40 2.x) by 2.20 Inches - 6 inch (magnification a) Negatiqe Format: Chart Position A B C . /I Provided by IHSNot for ResaleN

27、o reproduction or networking permitted without license from IHS-,-,-MIL-P-LI27C 67 W 777770b 03LI7757 7 W _._. . J - . - . - - . . . - . . . . . . - . . , ,_ -i-=- ._ - . .- 3.8.4 Protective cases 3.8.4.1 When cases fo the printer end projection ksd units cm specified by the procuring activity, they

28、 sM3. be made of w and corners shall be reinforc.ed with formed sheet steel; angles not less than 0.040 inch thick and secured with flat head corrosion resistant screw8 or rivets. Dimpled holes shall be provided for flushing the flat heat3 screws or rivets. The metal corner reinforcing shall extend

29、for approximatdy 142 inches fram the outside corner over each surface. The 5130ce for storage of the accessories may be a removable interior drawer. These artie%?s shall be securely fastened in place. 3.8.4.2.1 Case finich.- The wood parts of the cases shall be color No. 34087 in accordance with FED

30、 STD No. 595. 3.8.4.2.2 Ail ferrous metal parts shall receive two coats of zinc elwema* primer, conforming to Specification em-P-636 applied to ail surfaces before assemby to the wood case. 3.8.4.2.3 All case lid6 or covers and panels shall be securely fastened with capti,ve screws to prevent loss.

31、material, shall be permanently affixed at the separation point between the case and the lid or cover and paneling for providing a moisture-proof seal when assembled. Rubber tape, or equally suitable 3.8.4.2.4 Eight flush handles, in accordance with Drawing 45B2l.509, shall be located on each case, t

32、he on each of two opposite sides, and one on each of the other sides. in a natural, well-bnlanced csnylng position. 3.8.4.3 Case marking.- The case shall be marked in accordance dth MILISI%129 provisions lor “fragile items“ with the following exceptions. The side markings shall be : The handles shal

33、l be located to place the load I , THIS SIDE Up DELICATE INSTRUMENT “Dm WITH CARE 3.9 Electrical characteristics . . . -* . . . . . . . . . . . . - . . -. . . . . . :. . . . I I. . . . ,_. I , - . . _ . . K.-.-.-.:.-: tz-z.-.-:.-: I . ,._. . . . -. . . . . . .r . . . ,. . .- . _.- z. *. . ., -._ . ,

34、 . . , . ,. I=: .-. . vlsions shall be provided for storage of the above s-s within the printer base unit. 3 .i8 Government-loaned property. = provides, the Government will loan his request: When the contract or purchase order 80 the following to the contractor upon I t: . . . . . . . . . . . - . I

35、i . Item Description Timer, Photographic, Auto- matic, Interval, Type C-U3 Spec i fi c at Ion 14IL=T-b17 Quantity 1 Item No. Stock No. p . 1 8goo-936950 , L-:;. . . . .I . . - - -. i. - 3.19 Florkm;:=:x: . /;x=:2 . . . . F“:-”- - .-. , . 3.19.1. Dimensions and tolerances.- Where dimensions and toler

36、ances are not- sprclfied, and where they may affect the Interchangeability, operation or , performance of the priate;*, they shall be held or limited accordbgly. 3.19.2 Riveting.- Riveting operations shall be careFully perfoxmed to haure %ha% rdVets 8xe tight and satisfsct0ly headed. :-.- ,- . . -_

37、. _- _- . . . -.-. . i . t;: . I. _. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-4278C 67 m 777770b OLLI77bL 7 I L . - . - _I . - - - -e - -. -.-.- y-. -_- - _-. “- - - - - - . . . 3.19.4 Safety wiring.- Safety wiring shaU be in accordance

38、xitb i.ls3.35443, Staking or other methods of 6.ecurng connections shal be approved by the procuring activity. 3.19.5 Gears.- Gear assemblies shall be properly allgaed and meshed, and shaU be operable without interference, tight spots, loose spots, or other irregularities. Where required for accurac

39、y, gear usemblies shaU be free from backlash. 3.19.6 Preparatory cleaning.- Prior to application of any finish procem, all surfscces shall be cleaned free from dirt, mase, oil, solder-flux, visible rust, scale or oddes, and all other debris that mightinterfexe k5tI.i the adherence of thr finish, 4.

40、QUALITY ASSURANCE PROVISIONS 4.1 Unless otherwi.se specified herein, the supplier is responsible for the performance of a. inspection requiremnts prior to submission for CosFerment inspection and acceptance. utilize his own facilities or any commi.rciLi laboratory acceptable to the Government. compl

41、ete and available to the Government as specified In the contract or order. Except as otherwise specified, th mpplier may Inspection records of the examinations and teists shall be kept 4,s Classification of tests,- me inspection shdl be .classified as follws: a. Preproduction tests and tes+,lng of t

42、he printer bo Acceptance tests 4.3 Test conditions.- Test conditions shall consist of tbe foUnst.- At the CORCWG of the Isrt SVilaEp, Gf ;idivldual tests shall consist of the following. 4e5.1.1 Exmination of product.- Each printer SU be examined to detemine cmpliance with the requirements specified

43、herein concerning Geign, performance, quality of constructiori, size, weight, operation, and suitability of material used. 4.5.1.2 Performance . - Each printer, fully and properiy loaded with paper and negative, shall be subjected to a performance test in which the follow%ng features chall be rigidl

44、y inspected to determine their compliance Kith the specification. a. Capacity or printjng speed b. Modes of operation C. The paper feed, take up, and transport mechanism including the d. Automatic exposure control system Lhrm and paper splice Wamiing sys- e, FiSm transport system f. g. All printer c

45、ontrols and power swltches shall be operated at a Printing easel and radar overlay adapter mtnimm cf 15 operations. 4.5.1.3 Miscellaneous defects.- ?i? addition to the performance tests specified above, at least h feet of negative film and one 1,000-foot re11 of papr shall be run through the printer

46、 end examined for scratches, tbrasions, and other mechanical defects. present, the printer shall be reworked. If the above-named defects are 4.5.i.4 Resolving power.- Each lens shall be tested and shall meet the resolution requirements of this specification to determine that it produces ai acceptabl

47、e image 8% the magnification for which it is to be used. The lenses SW be tested according to the procedure described in the paragraph tibled “Projected photographic resolving power of MIL-STD-150 with the following exceptions: Variable contrast paper, glossy, developed 142 minutes in Eastman Kodak

48、D-72 developer, or equa.l,diluted 1:2 at 68 F shall be used in the tests, When testing each lens, no contrast filters shall be used. Tbe lens shall be tested at the 6- magnification at which it wilb be used. All tests shall be conducted dth the lenses set at .mwimnn aperture. Test targets shall be meditan contrast tarets ao spcified in paragr8ph titled %i& contrast target“ o?-sm-. Ai tests shRU. be condmted with the lenses mounted in tbe printer as they are intended to be . k: . _