baber/WOPTO huggingface dataset:
Patent GB-962043-A (GB)
Title: Electrical control device
IPC: H02P1/04
Filed: 1962-07-26
Abstract: 962,043. Photo-electric control devices. BROOKHIRST IGRANIC Ltd. July 26, 1962 [Sept. 12, 1961], No. 28734/62. Heading G1A. In an electrical control device for example for controlling the regulator of an electric motor, an opaque shade 16 is movable between a light source in the form of a luminescent surface 10 and a light sensitive surface of a photo-electric means to vary the illuminated area of the light sensitive surface and thus vary an electrical parameter of the said photo-electric means to vary an output from the device, said surfaces being arranged substantially parallel and close together whereby the light sensitive surface would be substantially uniformly illuminated but for the said shade. In the embodiment shown an arcuate shade 16 secured to a control rod 18 pivoted at 20 is movable between an electroluminescent panel 10 connected to an A. C. supply, and a pair of selfgenerating selenium cells 12 and 14 each independently connected to a motor regulator (not shown) by lines 15, 17 and 19, 21 respectively to provide a pure D. C. voltage to control the speed of the motor. The shade is shaped as shown in Fig. 2 to allow an increasing amount of light to fall on one cell or the other as the shade is moved to the right or left, with a corresponding increase in low power D. C. voltage from the exposed cell in a manner directly related to the contour of the shade. In a further embodiment (Fig. 3 not shown) the shade is shaped to provide a "dead" band when the control rod is initially moved from its central position between the cells in either direction with a slowly increasing light intensity on one cell, and in another embodiment (Fig. 4 not shown) the shade is shaped to allow a small amount of light to reach both cells when the control rod 18 is in the central position and increases the light intensity on one cell rapidly on movement of the rod from this position. Variation of the intensity of the light from the panel 10 by varying its applied A. C. voltage may be used to provide an additional control and variation of the frequency of the applied A. C. voltage which will alter the wavelength of the light emitted by the panel 10 may be used in conjunction with coloured filters between-the panel and the cells 12 and 14 to provide a third control.
Patent GB-1009280-A (GB)
Title: Gas burners
Inventor: MAYO LIONEL WILLIAM
IPC: F23D14/06
Filed: 1963-07-20
Abstract: 1,009,280. Gas burners. PARKINSON COWAN Ltd. July 20, 1964 [July 20, 1963], No. 28827/63. Heading F4T. A gas burner comprising parts 14, 15, 18 has a set 10 of main ports and a set 12 of auxiliary ports fed from mixing chambers 11, 13 respectively with aerated gas. Gas is supplied to ports 12 at a low rate through restriction 21 as compared to the flow to ports 10. A duplex tap has two flow paths for gas to each mixing chamber, gas being supplied to ports 12 through- . out the opening movement of the tap but only to ports 10 for large openings of the tap. The flame from ports 12 serves to keep alight the flame from ports 10 particularly when slowburning gases, e.g. butane, are used.
Patent GB-249440-A (GB)
Title: Improvements in wheel tyres
IPC: B60C7/12
Filed: 1925-11-17
Abstract: 249,440. Fairweather, W. C., (Gummiwerke Fulda Akt.-Ges.). Nov. 17, 1925. Non-metallic elastic bodies and cores. - A. cushion tyre of the arch-section type with separate metal foundation-bands b<1>, b<2> for the side walls, has the extreme edge-portions of the cavity-walls d', d<2> inclined to the base bands at an angle w of approximately 60.
Patent GB-424903-A (GB)
Title: Improvements in and relating to water closet pedestals
IPC: E03D11/02
Filed: 1933-10-19
Abstract: 424,903. Sanitary closets. SHANKS & CO., Ltd., and SHANKS, R. J., Tubal Works, Barrhead, Renfrewshire. Oct. 19, 1933, No. 28921. [Class 26] In closets of the double-trap type incorporating an air-vent for breaking the siphonaction between the two traps, and means for promoting suction in the space 10, Fig. 1, between the traps, an ejector is provided consisting of a nozzle 4, Fig. 2, and an airsuction compartment 9 integral with the ware of the basin, and the air-vent is constituted by a perforation or perforations 11 connecting the compartment with the air space and located behind the outlet of the nozzle. The invention is also applicable to closets in which the second trap is integral with or separate from the bowl.
Patent GB-323282-A (GB)
Title: Improvements in or relating to devices for the measurement of mechanical forces
IPC: G01L1/04
Filed: 1928-10-09
Abstract: 323,282. Coventry Automatic Telephones, Ltd., and Eriksen, J. Oct. 9, 1928. Dynamometers. - A device for measuring mechanical forces such as the pressure exerted by the contact-making springs of relays, switches, &c. comprises a member adapted to move about either of two fulcra and normally kept in engagement with both fulcra by a spring. A blade 1 to the tip of which the pressure to be measured is applied is attached to a plate 2 fixed to a horse-shoe member 3 provided with knife edges 4, 5 engaging V-grooves in a frame 6. A screw 7 passes through the limbs of the horse-shoe and in a groove in its centre supports a plate 8 connected to a spring 9 the tension of which is adjustable by a screw 11 connected to the other end and a nut 10. When pressure is applied to the end of the plate 1 the knife-edge 5 just lifts from its seating when the pull of the spring 9 balances the pressure. A pointer 12 moves over a scale on the casing which mav be calibrated to read pressure at the tip of the blade 1. By moving the screw 7 so that the applied pull of the spring 9 does not act centrally between the knife edges, unequal pressures are required at opposite sides of the blade to balance the pull of the spring 9. This may be used to determine pressures between two limits. A mark on the casing may indicate when the plate. 1 is in the " zero " or normal position.
Patent GB-426011-A (GB)
Title: Improvements in or relating to radio communication apparatus
IPC: H03J9/00
Filed: 1933-10-19
Abstract: 426,011. Wireless transmitting and receiving apparatus. PLESSEY CO., Ltd., Vicarage Lane, Ilford, Essex, and BAILEY, C. E. G., 5, Guilford Street, Russell Square, London. Oct. 19, 1933, No. 28985. [Class 40 (v)] A transmitter or receiver comprises a control device having a high-frequency signal circuit and located at a point remote from the main portion of the apparatus, a low impedance circuit being provided for transferring high-frequency signal energy from one to the other. As applied to a receiver, the control device 10, Fig. 1, comprises the frequency - changing valve 12 of a superheterodyne circuit having a step-down output transformer 19, 20 feeding the intermediate frequency through a screened feeder 21, 23 to the input step-up intermediate frequency transformer 22, 24 of the main apparatus 11, the units 10, 11 being also screened. The transformers 19, 20 and 22, 24 may be arranged to constitute a band-pass filter by the provision of a common coupling condenser. A transmitting arrangement comprises a low-power oscillator unit 30 coupled to an amplifier unit 31 through transformers 34... 36, 42 and 44, 46 ... 48 and a feed line 43, 45. The waverange switches 37, 38 at the control unit may be ganged with a switch 52 controlling relays 51 at the unit 31 for the same purpose over auxiliary wires.
Patent GB-1082372-A (GB)
Title: A locomotive adapted to be suspended from an overhead track
IPC: B61C15/04
Filed: 1965-07-08
Abstract: 1,082,372. Suspended vehicles. ANGLOTRANSVAAL CONSOLIDATED INVESTMENT CO. Ltd. July 8, 1965 [July 10, 1964] No. 29034/65. Addition to 1,065,434. Heading B7L. A locomotive suspended from an overhead track 3, Fig. 3, comprises a rigid frame 2 having two pairs of running wheels 5 engaging the upper surfaces of lower flanges 6 of an I-beam (4), Fig. I (not shown), forming the track and a wheel 16 movable on the frame to engage the lower surface of the beam 4 and driven by a diesel engine (7) via a torque converter (9), coupling (10), reduction gear (11), shaft (12) with universal joints (13) and a shaft (14), the wheel 16 being mounted on the lower end of a link 19 pivoted at 21 to the frame, the upper end of the link 19 carrying a wheel 20 engaging the top surface of the beam (4) and which may be driven in unison with the wheel 16, and a drawbar 22 movable longitudinally with respect to the frame 2 in guides 24, the drawbar being connected to the lower end of the link 19 at 23, whereby the pressure between the wheels 16, 20 and the track will vary automatically with the load connected to the drawbar. The latter is bifurcated to connect with a link 19 at each side of the plane of rotation of the wheel 16 and each link 19 has an upper wheel 20 as described with reference to Fig. 2 (not shown).
Patent GB-231215-A (GB)
Title: A steam boiler for sterilizing and similar purposes
IPC: F22B21/12
Filed: 1923-11-17
Abstract: 231,215. Jones, R. A. Nov. 17,1923. Water-tube boilers.- A boiler designed for sterilizing and similar purposes comprises two upper steam and water drums A and two lower water drums or heaters 15 connected by crosstubes C whilst a steam pipe F bridges the two upper drums, and a curved pipe G connects the lower drums. The drums are of solid drawn steel with integral dished-out back ends and the front ends are closed by steel covers bolted to steel flanged angle rings secured to the ends of the drum.
Patent GB-385384-A (GB)
Title: Improvements relating to automatic telephone and like selective systems
IPC: H04Q3/00
Filed: 1931-10-20
Abstract: 385,384. Automatic exchange systems. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, and PATTERSON, W. G., 68, Eltham Road, Lee, both in London, and LONG, D. P., 3, Ingleby Way, Chislehurst, Kent. Oct. 20, 1931, No. 29116. Drawings to Specification. [Class 40 (iv).] In a single-motion selector which has two sets of wipers giving access to different groups of outlets and advances automatically during impulse reception, impulses are received by a pair of relays which at each odd impulse mark a stopping point at the beginning of the two corresponding groups of outlets. In one embodiment, which is identical with the incoming selector, shown in Fig. 7, of Specification 378,585, the wiper-switching relay is controlled by a discriminating signal from the preceding selecting stage, while in the other embodiment, which is substantially similar in other respects, the marking relays control wiper-switching according as the number of impulses received is odd or even. Specification 221,316, [Class 40 (iv), Telephones &c.], also is referred to.
Patent GB-280893-A (GB)
Title: An improved milking machine having electrically controlled pulsations
IPC: A01J5/14
Filed: 1927-11-01
Abstract: 280,893. Aktiebolaget Separator, (Assignees of Hapgood, C. H.). Nov. 17, 1926, [Convention date]. Cow-milkers.-In milking-machines employing double-chambered teat cups the pulsations to which are controlled electrically from a common centre, the pulsator has a chamber o in communication with the pulsation pipe g and provided with ports p, r open to the vacuum pipe line u, v and to a source of higher absolute air pressure such as the atmosphere, respectively, these ports being disposed opposite one another and provided with a disc valve or valves electrically operated. As shown, a single disc valve t is fitted between the ports; the chamber may, however, comprise a passage the ends of which are arranged to be closed alternately by disc valves carried by a stem passing through the passage. The valve t constitutes the armature of an electro-magnet 10 which together with the pulsator is mounted on the cover of the milk can. In order that the pulsations may be applied to the teat cups in pairs alternately there may be a secondary pulsator a associated with the milkreceiving member c connected to the inner chambers of the teat cups. The electric generator 20 is mounted on the pump shaft which carries a pinion x in gear with a wheel y fitted with a semi-circular contact strip 25, and in this way as the wheel turns the circuit 13, 12, 11, 14, v through the electro-magnet is intermittently made and broken. Specifications 145,520, 172,184; and 172,808, [Class 110 (ii), Rotary engines &c.], are referred to.
Patent GB-990417-A (GB)
Title: Semi-conductor devices
IPC: B22C15/12
Filed: 1961-08-14
Abstract: 990,417. Thermistors. CARBORUNDUM CO. Aug. 14, 1961 [Sept. 26, 1960], No. 29230/61. Heading H1K. A thermistor consists of a monocrystalline body of silicon carbide with a pair of electrical leads attached to it by fusion of the contacting parts of the leads. The thermistor (Fig. 1) is made by clamping the body 10 between the leads 11 in vacuo or in an atmosphere of argon, helium or hydrogen and either heating the entire assembly or passing current through the leads, to melt them. Globules 12 of ceramic or porcelain cement are used to strengthen the assembly. Tungsten, tantalum, tungsten-tantalum alloys, rhenium, molybdenum, and iridium are particularly suitable materials for the leads. Iron, cobalt, nickel, rhodium and platinum may also be used however if some free silicon is placed at the contact areas to prevent formation of graphite layers in the fusion process. The body may consist of pure, compensated, or P or N type silicon carbide or a solid solution of boron in silicon carbide containing 1 to 10% by weight of boron. The temperature coefficients obtainable using the various materials are discussed. A solid solution of boron in silicon carbide may be made directly from a mixture of silica, carbon and boron, or by adding the required amount of boron to a silicon carbide melt and crystallizing.
Patent GB-1227670-A (GB)
IPC: B23D/
Filed: 1969-06-10
Abstract: 1,227,670. Trimming devices. LESIEURCOTELLE. 10 June, 1969 [17 June, 1968], No. 29233/69. Heading B4B. A device, e.g. for trimming flash from a moulded plastics bottle 6, comprises a principal knife 10 for stripping flash 11 without a positive shearing action and a secondary knife 12 for shearing off any scraps remaining. The knives 10, 12 are arranged to extend around the profile of the bottle, and are borne by a stationary support 13, the bottle 6 being enclosed in halfmoulds 5, 7 movable upwardly over the blade edges against a spring 9.
Patent GB-461706-A (GB)
Title: Improvements in and relating to sound absorbing partitions, walls and the like
IPC: E04B2/74
Filed: 1935-10-23
Abstract: 461,706. Partition walls; ventilating-passages. FISK, E. T. Oct. 23, 1935, No. 29235. [Classes 20 (iv) and 137] A sound-reducing ventilating partition wall comprises two or more panels spaced apart with a sound baffle between the pairs of panels so as to offer a high resistance to the passage of sound waves but a low resistance to air. A pair of panels 6, with or without a facing 5 of sound absorbing material such as felt are attached to a frame comprising studding 3 and floor and ceiling plates 10, the panels being of such height as to leave ventilation openings between them and the floor and ceiling respectivelv. Baffles 4, faced with sound absorbing material, project from the floor and ceiling into the space between the panels and are of such dimensions as to leave spaces between them and dividing shelves 7 respectively. The sides 8 of the ventilation openings and the shelves 7 may also be covered with sound absorbing material. The frame is insulated from the floor and ceiling and also the shelves 7 from the partition panels, by means of felt pads 9. The frame is held in position by means of bolts insulated from the floor or ceiling.
Patent GB-364166-A (GB)
Title: Improvements in and relating to baking ovens and the like
IPC: H01T13/12
Filed: 1930-10-02
Abstract: 364,166. Endless chain conveyers. BAKER PERKINS, Ltd., Hythe Road, Willesden, London.-(Assignees of Feige, H.; 1203, Holland Avenue, Saginaw, Michigan, U.S.A.) Oct. 2, 1930, No. 29537. Convention date, March 31. [Class 78 (i).] The conveyer of a baker's oven or the like is stopped automatically after it has moved a predetermined distance and is automatically restarted after an interval which may be varied without varying the period of travel. In the apparatus shown the conveyer 4 is driven by a motor 7 through reduction gear 8, the motor being stopped after the conveyer has travelled a tray pitch distance by a cam 10 on a shaft 9 of the reduction gear tripping a switch 11 arranged in a relay circuit operating to open the motor-power circuit. The motor-power circuit is closed by a switch 12 in the relay circuit being tripped at predetermined intervals by a cam 13 driven through variable speed gearing 20 by a constant speed motor 14. Fig. 4 shows a suitable circuit diagram in which a magnetic switch 15 in the power circuit to the motor 7 is closed periodically on the momentary closing of the circuit to a solenoid 16 at the switch 12. The movement of the switch 15 completes a holding circuit for the solenoid, this holding circuit being broken after the conveyer has travelled a tray pitch distance by the opening of the switch 11. A switch 17 controls the power circuit of the constant speed motor 14 and a two-way switch 18 enables the conveyer to be. driven continuously. Alternatively a single relay switch is alternately opened by the conveyer or stopping cam and closed by the cam of the conveyer or starting mechanism. In a modification the conveyer is driven through a clutch which is released periodically by the action of the driving mechanism and engaged at intervals by independent timing mechanism.
Patent GB-173640-A (GB)
Title: Improvements in and relating to road scarifiers
IPC: E01C23/12
Filed: 1920-10-19
Abstract: 173,640. Barford, J. G., and Perkins, J. E. S. Oct. 19, 1920. Couplings for road vehicles.-A spring coupling is built into the frame of a road scarifier of the type wherein a separate implement is drawn by a tractor. In the form shown, the coupling-hook 8 is adapted to swing in an horizontal plane about the vertical spindle 1 carrying the steering-lever, the spindle 1 being connected with the main frame 2 through the cross frame 3. The tracting effort is transmitted from the hook to the spindle 1 through bolts 5, springs 9 and the swivelling block 4. In modifications, the hooks are adapted to swivel only in a vertical plane. In a further modification a hook or a draught bar is prevented from swivelling in any direction.
Patent GB-1009066-A (GB)
Title: Rotary internal combustion engine
IPC: C08J5/22
Filed: 1962-08-01
Abstract: 1,009,066. Rotary 1.C. engines. W. B. McCALL. Aug. 1, 1962, No. 29590/62. Heading F1F. A rotary internal combustion engine comprises two rotors 14 and 18 rotating about axes at right angles to one another and having peripheral cut-outs 33, 34 and 35, 36 respectively which engage the remaining peripheral projections 51, 52 and 49, 50 respectively as the rotors rotate. An inlet and an exhaust opening communicate with each rotor chamber, and are separated by rotary abutments 60, 65 which have cut-outs to allow the peripheral projections of the rotors to pass. As the rotors rotate, fuel-air mixture is drawn into the cut-outs 34 and 35 (see Fig. 2) on the inlet sides of the abutments, and, considering only the charge in the cut-out 34, is compressed against the flank of the portion 52, which is then in engagement with the cut-out 34, into an adjacent combustion chamber, where it is ignited and allowed to expand into the cut out portion 35. The stages of the working cycle appear in more detail in (Figs 5-8 not shown). Throttle valves may be fitted in the inlets and exhaust openings, to control the power output and to provide engine braking. The engine may operate by spark ignition or compression ignition.
Patent GB-536298-A (GB)
Title: Improvements in or relating to electric forging or heating machines
IPC: B21J9/08
Filed: 1939-11-08
Abstract: 536,298. Electric heating. GASPAR, E., and OMES, Ltd. Nov. 8, 1939, 29644. [Class 39 (iii)] [Also in Group XXII] To secure uniform heating in an electric forging or heating machine, in which lower vice jaws 11, 12 are connected at the rear to the transformer secondary at 18, 19 and upper vice jaws are connected to the lower through laminated copper clips, 22, 23, the jaws are cut away at 28, 29 to reduce their contact area with the link at the rear the recess tapering away towards the point. To compensate for the added path resistance due to the strips 22, 23 the recesses in the upper jaws are smaller than those in the lower jaws. According to the Provisional Specification three or more rectangular longitutional grooves may be employed. Specifications 368,345. 514,727 and 514,728, [all in Group XXII], are referred to.
Patent GB-641565-A (GB)
Title: Improvements in automatic arc welding apparatus
IPC: B23K9/12
Filed: 1947-11-07
Abstract: 641,565. Automatic arc control systems. BABCOCK & WILCOX, Ltd. Nov. 7, 1947, No. 29673. Convention date, Nov. 9, 1946. [Class 38 (iv)] [Also in Group XXXVII] The electrodes of A.C. arc welding apparatus are driven by a differential gear-box which is driven by a pair of oppositely-rotating electric motors. When the motors run at equal speeds the electrodes are stationary, but any deviation in arc voltage causes one motor to increase speed and the other to correspondingly decrease speed, thereby advancing or retracting the electrodes. The arc voltage is applied to a transformer 41, rectified by valve 38 and a part of the output is tapped off resistor R6 and applied to the grid of a triode 44 so as to control the current in the D.C. winding SR-1DC of a saturable reactor connected in the anode circuit. The A.C. winding of the reactor is connected across one arm of a phase-shifting bridge comprising the transformer secondary T2S2, resistor R11, condenser C4, variable resistor R10 and condenser C11, thereby controlling the phase of the control grid voltage of thyratron 15 and therefore controlling the speed of one of the driving motors 4 connected in the anode circuit. The output of a current transformer T3P, T3S, in series with motor 4, is rectified by valve 47 and a part of the output is tapped off resistor R17 and applied to the grid of a triode 51 so as to control the current in the D.C. winding SR-2DC of a saturable reactor connected in the anode circuit. The two triodes 44, 51, have a common D.C. supply derived from transformers TIP, TIS and rectifier 29. The A.C. winding of saturable reactor SR-2 is connected across a second phase shifting bridge, similar to the first, thereby controlling the phase of the control grid voltage of thyratron 16 and therefore controlling the speed of the other driving motor 7. Due to the reversed connections of rectifier 47, any change in the speed of motor 4 produces an opposite change in the speed of motor 7. The two motors drive a differential gear-box, Fig. 2 (not shown), the output of which controls the electrodes, Fig. 1 (not shown). Automatic control is effected by closing power switch 60 and the starting switches 11, 12. Manual control is effected by closing power switch 60 and using the inching push-button 12<SP>1</SP> to run only motor 7 in a direction determined by a reversing switch 19. Specification 641,564, [Group XI], is referred to.
Patent GB-391446-A (GB)
Title: Improvements in automatic telephone systems
IPC: H04Q3/00
Filed: 1931-10-26
Abstract: 391,446. Automatic exchange systems. TELEFONAKTIEBOLAGET L. M. ERICSSON, 33, Kungsgatan, Stockholm. Oct. 26, 1931, No. 29694. Convention date, Oct. 27, 1930. Drawings to Specification. [Class 40 (iv).] The busy test of a wanted line is made under the control of a sequence switch in a registermarker, a slow step-by-step driving circuit for the switch being closed when the wanted line is selected. If the line is free the driving circuit is opened by the operation of the test relay, but if this relay has not operated by the time the switch reaches its tenth position, a busy signal is given. The invention is described with reference to a system similar to that described in Specification 391,445 but having the talking circuit completed over two link circuits instead of three.