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    • 3. 发明专利
    • Improvements in or relating to road traffic direction and movement signalling devices for use on vehicles
    • GB336003A
    • 1930-10-09
    • GB2111529
    • 1929-07-09
    • RODERICK GEORGE MCLEODWILLIAM JOHN MCLEOD
    • B60Q1/34
    • 336,003. McLeod, R. G., and McLeod, W. J. July 9, 1929. Road-traffic signals on vehicles.-A signalling device for use on vehicles comprises an indicator rotatable about a horizontal axis to bring one or other of two faces into a vertical position, a lamp inside the indicator illuminating both faces, and a switch (preferably brake-operated) to control the lamp when the indicator is in one of its settings but not when it is in the other. The indicator casing has two parallel triangular faces bearing arrows 102 and two smaller faces bearing # slow " and " stop " indications 103, and is attached to a sleeve 100 rotatable around a fixed stem 104 which may form part of the windscreen hinge. The lamp 105 is mounted in a " cartridge " 110 held in the stem 104 by a bayonet fastening 111. One end of the lamp is received in a slidable spring-pressed socket 115, its other end being connected to a contact 113 pressed by a spring against a contact 108 fixed to an insulating block 107 attached to the stem 104. Attached to the sleeve 100 is an insulating block 124 having two electrically connected plungers 125, 126, and a handle 128 by means of which the indicator is operated. Co-operating with the block 124 is a fixed block 120 having two contact studs 121, 122 and a contact segment 123. The stud 121 is connected to a switch 130 connected to the brake pedal of the vehicle. When the indicator is moved to bring the triangular faces vertical, the lamp is lit directly through the circuit of the stud 122. When the large faces are horizontal, the lamp is lit through the circuit of the stud 121 under control of the brake switch. Specification 329,377 is referred to.
    • 4. 发明专利
    • Improvements in or relating to crystal rectifiers for wireless reception
    • GB248459A
    • 1926-03-03
    • GB2903624
    • 1924-12-03
    • RODERICK GEORGE MCLEODWILLIAM JOHN MCLEOD
    • H01L29/00
    • 248,459. McLeod, R. G., and McLeod, W. J. Dec. 3, 1924. Crystal detectors.-Relates to crystal holders of the type in which the crystal and catswhisker are rotably mounted at opposite ends of a containing cylinder or barrel, and wherein one element is mounted eccentrically to the other to facilitatesearching, and wherein provision is made for micrometer adjustment of the pressure of the catswhisker against the crystal. The invention. comprises the following features. The end-plate 22 makes a friction-tight fit into the barrel instead of being screw-threaded. The crystal 31 is held between a push-on cap 30 and a spring 32 carried by a stem 26, which is friction held in the end plate 22, rotation being, allowed by a spring plate 29 and an operating-knob 28. Similar frictionheld end fittings are provided for the end-plate 25 and the eccentrically-mounted catswhiskerholder, the wire contact 40 being carried by a crank-arm 39. The micrometer pressure device 37, 41, 43 is characterized by the fact that the screw 43 works in the metallic end of the cylinder 33 which is screw-threaded for this purpose. Pins 21, 24 on the flanges of the barrel determine the proper position of the end plates 22 and 25 to give the desired eccentric setting. Legs 12, 13 extend through the insulating base 11 and the panel mounting 10 and constitute terminals 19 for - the circuit wiring.
    • 7. 发明专利
    • Improvements in or relating to road traffic direction and movement signalling devices for use on vehicles
    • GB329377A
    • 1930-05-19
    • GB539829
    • 1929-02-18
    • RODERICK GEORGE MCLEOD
    • B60Q1/34
    • 329,377. McLeod, R. G. Feb. 18, 1929. Road-traffic signals on vehicles.-A manoeuvre signalling device for use on vehicles comprises a plurality of indicators adapted to be rotated about a horizontal axis from a horizontal inoperative position to a vertical display position by individual operating means nested to turn about a common axis. The operating means may be utilized to control switches for lamps to illuminate the indicators. In one form as shown in Figs. 1 and 5, two indicators comprising metal casings 10, 11 with arrowheads 12, 13 pointing in opposite directions are mounted respectively on tubular stems 14, 15 enclosed in an outer casing 16 mounted on the vehicle. The casing 16 may be arranged in a tube forming part of the hinge of the windscreen. 'The stems 14, 15 are provided with control arms 18, 19 extending through slots in the casing 16 and tube 14 and casing 16 respectively. The interior of the stem 15 houses an electric lamp 21 mounted in a cartridge, bearing at one end against an inturned lug 22 and having pins 23 at the other end engaging bayonet slots in the stem. The cartridge comprises an insulating block 24, a spring plunger 25, and a metal flange 26. The flange 26 serves to connect one of the lamp terminals to the stem 15, the other terminal being connected by a stud 27 in the insulating block and a wire 28 to an insulated stud 29. A battery is connected to the terminals 31, 32, the latter being associated with spring contacts 33, 34 that co-operate with the control arms 18, 19 when moved to operative position. The terminal 32 and contacts 33, 34 are mounted on an insulated plate 35 on a bracket 17 carrying spring clips 36, 37 for holding the arms in inoperative position. The stems are slotted opposite the lamp 21 to permit the light to pass through and illuminate the indicators when moved to display position. The inoperative indicator may also be illuminated to display the warning " pass " or " stop.'' The circuit of the lamp may also be controlled by a brake operated or other switch to display a warning such as " slow " when desired. In another form, as shown in Fig. 8, the stems are provided with enlarged extensions 52, 53 to provide adequate room for two lamps 55, 56, one for each indicator, the lamp cartridge comprising a casing 54 with a central conducting block 64 and insulated contact blocks 65, 70 connected to leads 63, 69, 74 respectively. In the circuit diagram, Fig. 9, the control arms are represented by the contacts 77, 78 and additional switches 79, 81 are provided in parallel therewith for control by the steering wheel 80 and brake pedal 82. A modified form with three indicators is shown in Fig. 11, the control arms 91, 92, 93 being mounted on nested sleeves supported on a windscreen standard 94.