CHAPTER II, SECTION 5 ship between these various Stations and construction status on 8 January 1954. ENGINEERING. The original criteria were received on 15 April. Drawings were included with Station 1210. 31 January 1954. Actual construction started on 9 September and was completed on 25 January 1954. STATIONS 1213, 1214 AND 1215 CONCRETE BAFFLE - SITE DOG USER: LASL GENERAL. These Stations, used for reaction history, consisted of a system of reinforced Concrete Baffles two feet thick with openings to match the openings of Station 1211. These Stations were spaced 50 feet, 100 feet and 200 feet from the inside wall of Station 1211. ENGINEERING. One drawing was prevared and submitted on 22 June 1953. It was approved on 238 July. CONSTRUCTION. Work started on 20 September and was completed on 22 January 1954. Figure 2-115 is tvpieal and shows the method of alignment using supporting jacks. STATIONS 1220.01 - 1220.10 HOLE-IN-GROUND - SITES VARIOUS USER. LASL GENERAL. These Stations were located from sites Able to Easy. Each Station of tnis series consisted of a 24” I. D. pipe, 22 feet long. embedded its entire length in the ground. The top of the pipe was centered in a 6’- 6" square hy I’ - 6” thick reinforced concrete pad with a plywood cover bolted on to a flange welded to the top of the pipe. Figure 2-116 shows Station 1220.04 on site Dog as 95% completed on 5 September. The User installed equipment which measured gamma versus time. ENGINEERING. Theoriginal criteria received on 1> Apnil 1953, was for three Stations, each with two pipes. On 24 July, this was changed to a one pipe Station and the number of Stations increased to six. On 6 August, ten Stations were desired. On 18 August the number was reduced to six. On 1 Octoher the Stations were relocated. One drawing was started on 15 May, was submitted on 21 May and approved on 20 Scptember. CONSTRUCTION. The construction schedule planned for work to start at vaned dates from 10 December to 15 December and to be completed trom 31 January to 15 February 1954. Actual construction starting dates varied from 28 October tao 24 November and completion dares varied from 5 January to 21 Janugery. STATIONS 1221.01 AND 1221.02 TWO HOLES-IN-GROUND SITE CHARLIE - USER: LASL GENERAL. These Stations were similar to the 1220 series with the exception that two pipes 22 feet long were used. The conercte pad was 6-6" & 18°. 0", ENGINEERING. The criteria were received on Is August. The Stations were re-oriented for Station 20 on 23 September and relocated on - October. Design details were included with the [220° series. CONSTRUCTION. Construction was scheduted to commence on 15 November and to be completed by 31 January. Actual construction started on 28 October and was completed on 21 January 1954. STATION 1300 - CAB ON 3C0-FOOT TOWER - SITE NAN - USER: EG&G GENERAL. This Station, used for technical photography, was a cab obtained trom Jobsite Supplyoriginally intended for installation on a 75-foot photo tower, and it was mounted on top of a modified 200 foot steel tawes, alsu vulaimed from Jobsite Supply. The cab was 14’-0” x 16’- 0” in plan, with roll-up doors at each end of the two short sides, and was supported by special platform framing. Access was provided by a man hift. MECHANICAL. The tower had a combination freight and passenger elevator. The clevator cab was enclosed on three sides with aluminum sheet and had a folding gate on the entrance side. A broken or slack cable device combined with a down travel overspeed governor would stop Station 1220.04 - Typical of Series at df ' Page 2-118 wma, Figure 2-116. the elevator in case of trouble and an interlock was provided on the cab door. Personnel hoists installed on these photo towers were tested for conformance with the rigid safety standards required by the design. Performance of broken cable and overspeed safety devices as well as electrical interlocks was witnessed in sat| | | i PN en een oe t ir! ! Be ce el Sper nell + og ate akenallegea Cedeatttett et “heal. ta * ' : . on gen ES wt cere caattiand a 1 f i