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1. 发明专利

GB147269A Improvements relating to electric signalling and indicating apparatus 未知
公开(公告)号：GB147269A
公开(公告)日：1920-07-14
申请号：GB944319
申请日：1919-04-14
申请人： MCKENZIE HOLLAND AND WESTINGHO , HARRY MELVILLE PROUD
IPC分类号： G08B5/38
摘要： 147,269. McKenzie, Holland, & Westinghouse Power Signal Co., and Proud, H. M. April 14, 1919. Lamp-failure warning-devices.- The operation of a switch, controlling two lamps or other indicating- devices, is indicated at the distant control station through the operation of a relay included in the lamp circuit. The relay is provided with a polarized armature and an unpolarized armature interconnected to indicate direction and cessation of current. The armatures 2, 3 of the controlling relay 1, Fig. 1, place the lamp 9 and an indicating relay 4 in series across a battery 11 when in the positions shown, and in their lower position place the lamp 10 and relay 4 in series across the battery 11 in such a manner that the current through the relay 4 is reversed. The relay 4 is provided with an unpolarized armature 12 and a polarized armature 13, by means of which the direction of the current through the relay or the cessation of the current is indicated at the, distant station. In the modification shown in Fig. 2, the battery 11 is placed in the common return circuit of the lamps 9, 10. In a further modification, the positions of the relay 4 and the battery 11 shown in Fig. 2 are interchanged. In the modification shown in Fig. 4, the battery 11, Fig. 2, is replaced by the secondary winding 14 of a transformer 15, while a transformer 17 is placed between the armatures 2, 3 and one winding 18 of the relay 4. A second winding 19 is energized continuously with alternating current.

2. 发明专利

GB157070A Improvements in light projecting apparatus 未知
公开(公告)号：GB157070A
公开(公告)日：1921-12-22
申请号：GB3051920
申请日：1920-10-28
申请人： MCKENZIE HOLLAND AND WESTINGHO
摘要： 157,070. McKenzie, Holland, & Westinghouse Power Signal Co., Ltd., (Assignees of Snavely, C. S.). Jan. 9, 1920, [Convention date]. Signal and like lamps.-A projecting lamp for railway signalling and for other purposes is provided with a light source, such as an incandescent electric lamp filament A, B, at each focus of an elliptical reflector R. One or more lenses C, D are arranged so that the rays passing through the front focus are projected in a parallel beam.

3. 发明专利

GB145833A Improvements relating to railway signal operating and controlling apparatus 未知
公开(公告)号：GB145833A
公开(公告)日：1920-06-28
申请号：GB770419
申请日：1919-03-27
申请人： MCKENZIE HOLLAND AND WESTINGHO , WALTER ALLAN PEARCE , BERNARD HARTLEY PETER
IPC分类号： B61L5/16
摘要： 145,833. McKenzie, Holland, & Westinghouse Power Signal Co., Pearce, W. A., and Peter, B. H. March 27, 1919. Slots, reversers, and like apparatus.-An electro-magnetic clutch mechanism in a signal-operating mechanism comprises a pin or roller 19 on one element 9 of the clutch adapted to engage a bearing-surface 18 on the mounting 14 of the armature 15 forming the other element of the clutch in such a way that the force exerted upon the armature mounting in setting the signal is resolved so as to be opposed by the magnetic attraction of the armature. The plate 9 carries a bell-crank 11, 13 pivoted rigidly with a cam 6 which is engaged by one of the pins 5 on a disk 1 driven by means of the electric motor 3. If the magnet 16 is de-energized the lever 11, 13 is rocked and the plate 9 is not moved. The semaphore is linked to the crank 10 which is rigid with the plate 9. A dash-pot 21 is provided as a brake for the return movement of the arm to danger. A switch 25, 26 actuated by a pivoted member 23 engaged by a roller 24 opens the motor circuit and short-circuits the motor armature.

4. 发明专利

GB113615A Improvements in Electric Relays particularly for Traffic Controlling Apparatus. 未知
公开(公告)号：GB113615A
公开(公告)日：1918-08-15
申请号：GB290718
申请日：1918-02-19
申请人： MCKENZIE HOLLAND AND WESTINGHO
IPC分类号： B61L1/18
摘要： 113,615. McKenzie, Holland, & Westinghouse Power Signal Co., (Assignees of Holliday, J. S.). Feb. 20, 1917, [Convention date]. Electrical systems, automatic. - Relates to a relay comprising a magnetic structure in two parts, each having four pole-pieces a, b, c, d and a , b , c , d , opposite one another, leaving a narrow gap in which a conducting-vane V is mounted on, a pivot so that it is free to swing upwards and close a circuit by means of the tail piece Y, Fig. 4. Each part of the magnetic structure is provided with a winding L located on the vertical limb between the two inner polepieces and a second winding T embracing the two inner pole-pieces. Each winding is connected in series with the companion winding on the other magnetic part. For controlling the signals on an insulated section 10 of railway track, the windings L are connected to an alternating-current generator G, the track is connected to the generator through a transformer 13 the secondary of which contains a reactance 14 which produces a displacement of phase of the current taken from the track by the windings T in relation to the current in the windings L. The signal S is held at " clear " when no train is on the section by the action of the two magnetic fluxes relatively displaced in phase, which raise the vane and close a local signal-operating circuit at K. When a train is on the section the cons Tare short-circuited, the vane falls and the local circuit is broken, and the signal moves to " danger."

5. 发明专利

GB111159A Improvements in and relating to Signalling by Means of Electric Lamps. 未知
公开(公告)号：GB111159A
公开(公告)日：1917-11-16
申请号：GB1643416
申请日：1916-11-16
申请人： MCKENZIE HOLLAND AND WESTINGHO , WILLIAM SEBASTIAN GRAFF BAKER
IPC分类号： G08B5/38
摘要： 111,159. Baker, W. S. G., and McKenzie, Holland, & Westinghouse Power Signal Co. Nov. 16, 1916. Lamp signals.-In signalling in which two lamps (or groups of lamps) are employed, one lamp being of high resistance and the other of low resistance, the lamps are normally connected in series in which case the high-resistance lamp alone glows, but on short-circuiting it the low-resistance lamp glows. Preferably the high and low resistance lamps have metal and carbon filaments, respectively. For railway signalling, the high-resistance lamp is connected to the track and is short-circuited by a passing train.

6. 发明专利

FR506814A 未知
公开(公告)号：FR506814A
公开(公告)日：1920-08-31
申请号：FR506814D
申请日：1919-12-01
申请人： MCKENZIE HOLLAND AND WESTINGHO
发明人： PETER LESLIE HURST
IPC分类号： B64F1/18

7. 发明专利

GB113616A Improvements in Electric Relays particularly for Railway Traffic Controlling Apparatus. 未知
公开(公告)号：GB113616A
公开(公告)日：1918-08-01
申请号：GB290818
申请日：1918-02-19
申请人： MCKENZIE HOLLAND AND WESTINGHO
IPC分类号： B61L1/18
摘要： 113,616. McKenzie, Holland, & Westinghouse Power Signal Co., (Assignees of Zierdt, C. H.). Feb. 20,1917, [Convention date]. Electrical systems, automatic.-Relays are designed to operate with current of signalling frequency and to remain unaffected by propulsion current of lower frequency. The insulated section A of track is supplied through a transformer T with signalling current of higher frequency than that of the propulsion current which returns through the rails. When no train is on the section, the relay is energized by the higher frequency signalling current and is unaffected by any propulsion current derived from the rails. The relay closes a local circuit which moves the signal to " clear." When a train enters the section, the relay coils are short-circuited and the signal returns to " danger." The construction of the relay is described in detail.

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