{
 "overall_height": {
  "value": 44,
  "status": "documented",
  "source": "All brochures: Height 44 in",
  "label": "Overall height (to lid)"
 },
 "overall_length": {
  "value": 54,
  "status": "documented",
  "source": "All brochures: Length 54 in",
  "label": "Overall length incl. pulley guard & plumbing"
 },
 "overall_width": {
  "value": 29,
  "status": "documented",
  "source": "Later brochures: Width 29 in (1966 brochure says 28 in)",
  "label": "Overall width"
 },
 "weight_lb": {
  "value": 430,
  "status": "documented",
  "source": "Later brochures 430 lb; 1966-67 pieces say 400 lb",
  "label": "Shipping weight"
 },
 "capacity_gal": {
  "value": 125,
  "status": "documented",
  "source": "Later brochures 125 gal; 1966-67 pieces say 130 gal; patent prototype 60-75 gal",
  "label": "Tank capacity"
 },
 "frame_length": {
  "value": 47,
  "status": "derived",
  "source": "Overall 54 in minus pulley guard (~4 in) and outlet plumbing (~4.5 in) that stand outside the end frames",
  "label": "Frame length"
 },
 "frame_width": {
  "value": 29,
  "status": "documented",
  "source": "Brochure width 29 in; photos show tank sides flush with frame posts",
  "label": "Frame width"
 },
 "frame_height": {
  "value": 44,
  "status": "documented",
  "source": "Brochure height; leaflet photo shows top rail flush with lid",
  "label": "Frame height"
 },
 "angle_leg": {
  "value": 1.25,
  "status": "estimated",
  "source": "Angle iron leg vs 12 in pulley in service leaflet photo",
  "label": "Frame angle leg"
 },
 "angle_thk": {
  "value": 0.1875,
  "status": "estimated",
  "source": "Typical 3/16 in structural angle",
  "label": "Frame angle thickness"
 },
 "slat_width": {
  "value": 2.0,
  "status": "estimated",
  "source": "Base cross slats in leaflet photo",
  "label": "Base slat width"
 },
 "slat_thk": {
  "value": 0.25,
  "status": "estimated",
  "source": "Flat bar",
  "label": "Base slat thickness"
 },
 "tank_length": {
  "value": 44,
  "status": "derived",
  "source": "Fits inside 47 in frame with end plates just inside end frames (pics p1); gives ~123 gal",
  "label": "Tank length"
 },
 "tank_width": {
  "value": 26.5,
  "status": "derived",
  "source": "Frame width 29 minus two 1.25 in angle legs",
  "label": "Tank width"
 },
 "tank_radius": {
  "value": 13.25,
  "status": "derived",
  "source": "Half of tank width - U-shaped end plates (pics p1, p2)",
  "label": "Bottom radius"
 },
 "shaft_below_rim": {
  "value": 14,
  "status": "documented",
  "source": "Polaroid back: 'ALIGN GUIDE @ 14\" center'; instructions p2 'center 14\"'",
  "label": "Agitator shaft centre below rim"
 },
 "sheet_thk": {
  "value": 0.075,
  "status": "estimated",
  "source": "14 ga steel - typical for a 125 gal open trough",
  "label": "Tank sheet thickness"
 },
 "lip_radius": {
  "value": 0.25,
  "status": "estimated",
  "source": "Rolled top lip (notes p5, p11: rivets 'centered in the rolled top lip')",
  "label": "Rolled lip radius"
 },
 "outlet_punch": {
  "value": 1.0,
  "status": "documented",
  "source": "Notes p5 / instructions p2: 1 in Greenlee punch for bottom centre hole",
  "label": "Outlet hole"
 },
 "return_hole": {
  "value": 1.125,
  "status": "documented",
  "source": "Notes p47: 3/8 pilot opened to 1-1/8 in Greenlee punch",
  "label": "Return hole in end wall"
 },
 "shelf_below_rim": {
  "value": 0.6,
  "status": "derived",
  "source": "Patent FIG 2/6 shows shelf 28 just under the cover; it must sit above the agitator sweep (shaft 14 in below rim, wiper tip ~13 in radius)",
  "label": "Loading screen depth"
 },
 "shelf_bag_lb": {
  "value": 80,
  "status": "documented",
  "source": "Patent col.2: supports an 80 lb bag of cement dropped ~1 ft",
  "label": "Loading screen rating"
 },
 "agit_shaft_dia": {
  "value": 1.0,
  "status": "documented",
  "source": "Notes p8 / instructions p5: 1 in shafts",
  "label": "Agitator shaft"
 },
 "agit_stub_drive": {
  "value": 12,
  "status": "documented",
  "source": "Notes p8: 1 x 12 in shaft (pulley side)",
  "label": "Drive-side stub shaft"
 },
 "agit_stub_idle": {
  "value": 10,
  "status": "documented",
  "source": "Notes p8, Polaroid back: 'Insert 10\" 1\" shaft'",
  "label": "Idle-side stub shaft"
 },
 "agit_pin_from_end": {
  "value": 1.0,
  "status": "documented",
  "source": "Notes p10: 1/4 in pin hole ~1 in from end",
  "label": "Pin from agitator end"
 },
 "wiper_thk": {
  "value": 0.25,
  "status": "documented",
  "source": "Patent col.2: rubber/neoprene wiper ~1/4 in thick",
  "label": "Wiper thickness"
 },
 "wiper_clear": {
  "value": 0.15,
  "status": "estimated",
  "source": "Patent: blades 'spaced slightly' from bottom; wiper just touches",
  "label": "Wiper clearance"
 },
 "blade_center_len": {
  "value": 12,
  "status": "estimated",
  "source": "Instructions p4 photo: centre blade over outlet",
  "label": "Centre blade length"
 },
 "blade_outer_len": {
  "value": 11,
  "status": "estimated",
  "source": "Two outer blades fill the rest of the tank",
  "label": "Outer blade length"
 },
 "blade_pitch_deg": {
  "value": 20,
  "status": "estimated",
  "source": "Notes p9: outer blades bent 'left down, right up'",
  "label": "Blade pitch"
 },
 "bearing_flange": {
  "value": 3.375,
  "status": "estimated",
  "source": "Fafnir RCJC 1 in 4-bolt flange cartridge (notes p7 'NO SUBSTITUTE')",
  "label": "Flange bearing square"
 },
 "bearing_bolt_sq": {
  "value": 2.5,
  "status": "estimated",
  "source": "4 x 7/16 bolt holes around 3/8 centre hole (notes p5)",
  "label": "Bearing bolt square"
 },
 "engine_hp": {
  "value": 5,
  "status": "documented",
  "source": "Later brochures & Polaroid decal: 5 HP Briggs & Stratton (1966: 4 HP)",
  "label": "Engine"
 },
 "engine_l": {
  "value": 12,
  "status": "estimated",
  "source": "Typical B&S 5 HP horizontal-shaft (1960s)",
  "label": "Engine length"
 },
 "engine_w": {
  "value": 12,
  "status": "estimated",
  "source": "Typical B&S 5 HP horizontal-shaft",
  "label": "Engine width"
 },
 "engine_h": {
  "value": 13,
  "status": "estimated",
  "source": "Pics p1: engine top just below tank bottom",
  "label": "Engine height"
 },
 "clutch_dia": {
  "value": 3.0,
  "status": "estimated",
  "source": "V-Plex friction clutch pulley",
  "label": "Clutch pulley"
 },
 "pump_pulley_dia": {
  "value": 12,
  "status": "documented",
  "source": "Service leaflet item I: 12 in pump pulley (six spoke in photos)",
  "label": "Pump pulley"
 },
 "agit_pulley_dia": {
  "value": 18,
  "status": "documented",
  "source": "Service leaflet item C: 18 in pulley (white pressed steel)",
  "label": "Agitator pulley"
 },
 "jack_drive_pulley_dia": {
  "value": 1.75,
  "status": "documented",
  "source": "Shop notes p31: 'PLACE 1 3/4 TRU RUN steel pully (37322) on shaft ... align bottom pully' (Gates TRU-RUN; read as 1-3/4 in OD, ~10:1 to the 18 in pulley)",
  "label": "Agitator drive pulley"
 },
 "jack_shaft_dia": {
  "value": 0.75,
  "status": "documented",
  "source": "Notes p1, p21: 3/4 in pillow blocks; p23 pump shaft 3/4 in",
  "label": "Jack shaft"
 },
 "jack_shaft_z": {
  "value": 8.0,
  "status": "derived",
  "source": "12 in pulley must clear the base slats; matches 45 deg suction drop (pics p8)",
  "label": "Jack shaft height"
 },
 "guard_dia": {
  "value": 20,
  "status": "estimated",
  "source": "Pics p11: drum guard just larger than 18 in pulley",
  "label": "Pulley guard diameter"
 },
 "guard_depth": {
  "value": 3.5,
  "status": "estimated",
  "source": "Pics p11: 3-4 in deep band",
  "label": "Pulley guard depth"
 },
 "pump_model": {
  "value": 0,
  "status": "documented",
  "source": "l3drive.pdf: Robbins & Myers Moyno L3 drive end; '2L3 rotor 13.125 standard, 3L3 18.250 heavy duty'",
  "label": "Moyno 2L3 progressing-cavity pump"
 },
 "rotor_len": {
  "value": 13.125,
  "status": "documented",
  "source": "Handwritten on l3drive.pdf cover: 2L3 rotor = 13.125",
  "label": "Rotor length (2L3)"
 },
 "stator_od": {
  "value": 3.5,
  "status": "estimated",
  "source": "Moyno 2L3 stator tube, from brochure cutaway proportions",
  "label": "Stator OD"
 },
 "suction_size": {
  "value": 1.5,
  "status": "documented",
  "source": "Service leaflet L/M/N: 1-1/2 in street ell, no-hub coupling, companion flange",
  "label": "Suction size"
 },
 "discharge_size": {
  "value": 0.75,
  "status": "documented",
  "source": "Notes p36-39: 1-1/4 x 1 bushing, 1 in nipple, 1x3/4x3/4 tee, 3/4 pipe",
  "label": "Discharge line"
 },
 "riser_pipe": {
  "value": 18,
  "status": "documented",
  "source": "Notes p37-39, service p3: 3/4 x 18 in pipe with 3/4 union",
  "label": "Riser pipe"
 },
 "seat_nipple": {
  "value": 8,
  "status": "documented",
  "source": "Notes p3-4: 3/4 x 8 in nipple filed flat on top as the seat",
  "label": "Valve seat nipple"
 },
 "relief_ball": {
  "value": 0.875,
  "status": "documented",
  "source": "Notes p3-4: 7/8 in stainless steel ball",
  "label": "Relief ball"
 },
 "adjust_bolt": {
  "value": 2.0,
  "status": "documented",
  "source": "Notes p3-4: 7/16-14 x 2 in adjusting bolt",
  "label": "Adjusting bolt"
 },
 "gauge_dia": {
  "value": 2.5,
  "status": "estimated",
  "source": "Standard 2-1/2 in dial; 1/4 NPT tap in reducer coupling (notes p36)",
  "label": "Gauge"
 },
 "max_psi": {
  "value": 250,
  "status": "documented",
  "source": "1967 mailer & green mailer: up to 250 psi (1966: 200; later claim 1,000 psi with heavy coatings)",
  "label": "Working pressure"
 },
 "max_gpm": {
  "value": 7,
  "status": "documented",
  "source": "Later brochures: up to 7 gpm (1966: 6 gpm)",
  "label": "Output"
 },
 "hose": {
  "value": 150,
  "status": "documented",
  "source": "Later brochure: 150 ft of 3/4 in Buna-N lined hose (1966 price list: 50 ft of 1/2 in, 200 lb)",
  "label": "Hose length"
 },
 "price_1966": {
  "value": 1260,
  "status": "documented",
  "source": "Price list, July 1966: Complete Jetspray Unit $1,260.00",
  "label": "1966 price"
 }
}