baber/WOPTO huggingface dataset:
Patent GB-629882-A (GB)
Title: Improvements in amplifying circuits for ultra-short waves
IPC: H03F1/28
Filed: 1947-12-31
Abstract: 629,882. Thermionic valves. PHILIPS ELECTRICAL, Ltd. Dec. 31, 1947, No. 35193. Convention date, June 19, 1940. [Class 39 (i)] [Also in Group XL (c)] In an ultra short wave push-pull amplifier in which input damping is compensated by inductance in the screen-grid leads the signal noise ratio is improved by compensating for the distribution noise by connecting the low potential end of the output impedances to the screen grids. Each screen grid may have two separated leads, Fig. 3 (not shown). The output impedances 5<1>, 5<11> may be connected to tappings on the screen grid inductances 81, 8<11> and 91, 9<11> so that only the parts 8<1>, 91 are traversed by the distribution noise current and are such as to exactly compensate the distribution noise, whereas the whole of the inductances are such as to provide the required damping reduction. The two amplifying systems may be arranged in the same envelope to ensure that the cathodes are interconnected by the shortest possible lead.
Patent GB-1224236-A (GB)
Title: Automatic programme controlled stage lighting system
Inventor: GUSTAFSSON TAGE
IPC: G05B19/14
Filed: 1968-07-24
Abstract: 1,224,236. Programmed stage-lighting control. ALLMNA SVENSKA ELEKTRISKA AB. July 24, 1968 [July 25, 1967], No. 35270/68. Heading G3N. In an automatic programme control system for a stage lighting arrangement a number of lighting circuits 1 are fed from a supply 2 through individual dimmers 3. During recording a lighting programme is first set up by switches 62a-c of a device 6 controlled by a manual register 4. When a lighting scene has been set a short time memory system 5 is activated, by connecting step-switches of the short-time memory system through switches 74a-c to a common operating device 13. For each dimmer there is a device 7 comparing the dimmer control signal from the register 4 with the signal from the corresponding step-switch of the system 5. When the signals are equal the appropriate step switch is stepped by opening the appropriate contact 74 by a signal from the comparison device 7. At the same time the dimmer is switched over from the manual register to the short-time memory system by the appropriate switch 62. The signals of the short-time memory system are then recorded by the long-time memory system, which comprises a punched card for each lighting scene, the sequence of cards being numbered. The dimmers may be transductors, adjustable transformers or thyristors and the step-switches mechanical relays or logic-switching elements. In a modification, duplicated manual registers and short time memory systems are employed, whereby during manual setting up, transition between scenes can be studied and, during reproduction, a consecutive scene can be set in one short time memory system while the other is being used to control the dimmers.
Patent GB-206044-A (GB)
Title: Improvements in and relating to furnaces
IPC: F23M5/08
Filed: 1922-12-28
Abstract: 206,044. Babcock & Wilcox, Ltd., (Deutsche Babcock-&-Wilcox Dampfkessel- Werke Akt.-Ges.). Dec. 28, 1922. Pulverulent-fuel furnaces.-In a pulverulentfuel furnace, the front wall 2, Fig. 1, and the rear overhanging wall 6 are inclined to one another and to the vertical and horizontal, the front wall being so arranged that besides radiating heat directly on to the boiler tubes d, it also reflects on to the tubes d heat radiated from the wall 6, behind which is an ash-collecting space 7. The side walls of the furnace may be arranged, as shown in Fig. 3, with the portions 9 subjected to the greatest heat diverging towards the tubes d and radiating heat on to higher portions 10 of the walls from which it is reflected on to the tubes d. In the furnace shown in Fig. 4, the walls 14 - - - 17 and arch 19 form heat radiating and reflecting surfaces. The arch 19 is provided with an air - cooled duct 20 and radiates heat on to the edges of the clinker outlet 18. The under surface of the arch is a surface of revolution having its axis at the intersection of the planes containing the upwardly diverging side walls of the combustion chamber.
Patent GB-1305730-A (GB)
IPC: H03F3/34
Filed: 1970-07-22
Abstract: 1305730 Integrated circuits PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 22 July 1970 [11 Nov 1969 20 May 1970] 35439/70 Heading H1K [Also in Divisions H3 and H4] A transistor amplifier for operation with either polarity of a D.C. voltage supply applied to first and second output terminals E 1 , E 2  has first and second transistors T 1 , T 2  of the same conductivity type connected with their emittercollector paths in series opposition between the first and second output terminals and their base electrodes connected to a common input point V 0 , a respective diode D 1 , D 2  is connected between the emitter and collector of each transistor and the diodes are connected such that, for one polarity of an applied D.C. voltage supply the transistor T 1  and the diode D 2  are in the conducting state and for the reverse polarity of the supply the diode D 1  and the transistor T 2  are in the conducting state. Either transistor T 1  operates as the amplifier and diode D 2  is conductive for one polarity of supply (i.e. E 1  is positive) or transistor T 2  operates as the amplifier and diode D 1  is conductive for the other polarity of the supply applied via telephone lines A. The conductive diode D 1  or D 2  protect its associated transistor T 1  or T 2  from breakdown. Additional transistors T 12 , T 13  and Tag, T 23  may be provided and diodes D 13  and D 23  are conducting and non-conducting for the one polarity when E 1  is positive to allow signals from preamplifier V to be amplified by T 13 , T 12  and T 1 . The opposite occurs for the other polarity of supply when diode D 23  becomes conducting to allow signals to be amplified by T 23 , T 22  and T 2 . A multi-emitter transistor T 0  enables the polarity of the supply to the preamplifier V at X 1 , X 2  to be indepen-  dent of the polarity of the supply to E 1 , E 2 . The amplifier may be constructed in integrated circuit form. Each transistor may be constructed on a p-type substrate 30, Fig. 3 provided with an epitaxial layer 31 having separation diffusion zones 32 so as to have a collector 35, base 33 and emitter 34 with the diodes D 1 , D 2  pn-junction formed by substrate 30 zone 32 and collector 35. In a modified construction (Fig. 4, not shown), the transistors have emitter, base and collector formed as zones (40, 41, 42; 40, 41, 43) and the diodes D 1 , D 2  are formed as zones (44, 45) and (44, 46) and a metal contact (47) short circuits the pnjunction formed between substrate (40) and zone (44) to prevent transistor action of zones (40, 44, 45, 46).
Patent GB-385742-A (GB)
Title: New or improved anti-skid device for pneumatic wheel tyres
IPC: B60C27/00
Filed: 1931-12-23
Abstract: 385,742. Anti-skid device for pneumatic tyres. SUTCLIFFE, J. A., 394, Rochdale Road, Manchester. Dec. 23, 1931, No. 35531. [Class 144 (ii).] A pneumatic-tyre tread is provided with one or more peripheral grooves 8 in each of which is fitted, so as to have lateral play therein, an endless flexible band having flexible flanges on its outer edges, to serve as an anti-skid device. The band preferably consists of a series of interconnected rubber blocks 10 upon each of which lateral flanges 10a are formed. To prevent the blocks 10 creeping round the tyre, ridges 12 are moulded in the grooves 8.
Patent GB-797057-A (GB)
Title: Improvements in or relating to apparatus for frequency spectrum analysis
IPC: G01R23/00
Filed: 1955-12-12
Abstract: 797,057. Frequency spectrum analyses. TECHNICAL CERAMICS, Ltd. Dec. 12, 1955 [Dec. 17, 1954], No. 35627/55. Class 37. Apparatus for frequency spectrum analysis comprises first and second multipliers receiving a signal representing the frequency spectrum to be tested, together with sinusoidal and cosinusoidal voltages derived directly and through a quadrature phase shifter from a common variable frequency source; the multiplied outputs being applied to first and second integrating circuits time synchronized with each other, whose outputs are combined in a vectorial adder whose output represents an analysis of the input spectrum when displayed by an indicator means against successive values of the local source frequency. A voltage representing the frequency spectrum f(t) to be analysed is applied to the inputs of multipliers 2, 3 respectively energized by voltages representing sin 2#Ft and cos 2#Ft respectively, derived from variable frequency oscillator 4 directly and through quadrature network 5. The product voltages f(t) sin 2#Ft and f(t) cos 2#Ft are integrated with respect to time by circuits 6, 7 (controlled by frequency stepping timing circuit 8) whose outputs are combined in vectorial summation circuit 9 to a voltage representing the absolute evaluated Fourier integral for the individual line of the frequency spectrum, which is displayed as the y deflection of an oscilloscope of an x against y recording 10, whose x deflection is synchronized with frequency variations of the oscillator 4, so that by tuning the latter through the spectrum the amplitudes of the several component frequencies are displayed. If the spectrum is that of a pulse, the latter is stored on a tape or drum record and repetitively applied to the input; the oscillator frequency being shifted by a discrete value in synchronism with successive cycles of the record.
Patent GB-472621-A (GB)
Title: Improvements in or relating to display racks or frames
IPC: A47F7/16
Filed: 1935-12-23
Abstract: 472,621. Displaying curtains. PRESS, D. Dec. 23, 1935, No. 35631. Void. Convention date, Dec. 21, 1934. [Class 3 (ii)] A rectangular display frame for curtains has hooks 21 between which a curtain rod 23 with. looped ends is detachably supported, the frame having a suspending hook 18 and a carrying handle 17. The lower cross-bar 13 of the frame is releasably engaged with the upright 11 by a hook 15. The handle is of U-shape connected with the upper cross-bar 10 and the hook. To maintain the curtain in place it may be gripped between the rod 23 and a second rod engaging the hooks 21 and clamped to the curtain rod 23 by spring clips.
Patent GB-1043756-A (GB)
Title: Improvements in or relating to automatic adjusting means for liquid pressure operated brakes
Inventor: CHOUINGS LESLIE CYRIL
IPC: F16D65/56
Filed: 1964-09-02
Abstract: 1,043,756. Disc brakes. AUTOMOTIVE PRODUCTS CO. Ltd. Aug. 20, 1965 [Sept. 2, 1964], No. 35964/64. Heading F2E. Automatic adjusting means for the pads of a disc brake, more particularly a brake of the kind having a floating calliper 14 (Fig. 1, not shown), on which is mounted a single cylinder 19 whose piston 21 is acted on both by fluid pressure and by mechanical applying means, to apply a pad 15 directly to a face of a disc 11 and a pad 16 to the opposite face of the disc by the reaction acting through the calliper, comprises a stem 35 secured to the piston and extending inwardly of the cylinder, a sleeve 46 having an internal screw-thread engaging an external thread 36 on the stem 35 and which normally abuts the inner end of a plunger 22 forming part of the mechanical applying means, and a pawl 51 which engages teeth 48 on the sleeve and is pivoted on a bracket 45 carried by the inner end of plunger 22, the pawl having a portion which under the action of a wire spring engages a forwardly facing surface 57 formed on the sleeve and the arrangement being such that adjustment occurs only on brake release following a fluid pressure application of the brake, owing to relative movement between the sleeve 46 and the bracket 45 which then occurs, since the plunger is held against movement by the fluid pressure while piston 21 is moved thereby to apply the brake. In the embodiment shown, the pawl consists of two arms 52, 53, joined by an integral bridgepiece 54 which is flexible, only the arm 52 being formed to engage the surface 57, which is formed by a flange 49 on the sleeve, so that the other arm 53, engaging the teeth 48 at a point diametrically opposite that engaged by the arm 52, acts as a holding pawl. The wire spring comprises a rectangular loop engaging recesses 59 in openings of the bracket 45, to anchor it to same, and an arm 58b which includes a loop 58c and engages the forward end of the pawl arm 52 at 61. One of the sides of the rectangular loop provides the pivot for the pawl, the arms of which have open-ended slots for engagement therewith. The spring is arranged to keep the arm 52 of the pawl in engagement with the surface 57 at all times. The plunger 22, and hence the bracket 45, is prevented from rotating by a pin-and-slot connection 39, 41 with the cylinder. The brake is mechanically applied by a lever 27 (Fig. 1, not shown), which when actuated by a cable 28 rotates a shaft 25 having a V-shaped recess 24 the bottom of which is eccentric to the axis of the shaft and in which is seated the tapered end 23 of plunger 22. In a second embodiment (Figs. 7-10, not shown), the forwardly facing surface of the sleeve is provided by an inclined face 78 which when the piston moves forwardly exerts a camming action via a roller 86 on a pawl 79 which is similar to the pawl 51 except that the retaining arm engages the ratchet teeth 76 frictionally.
Patent GB-634716-A (GB)
Title: Improvements in or relating to electrical communication systems utilising pulse modulation
IPC: H04J3/04
Filed: 1946-12-05
Abstract: 634,716. Multiplex pulse signalling; pulse modulation. SADIR-CARPENTIER. Dec. 5, 1946, No. 35992. Convention date, April 21, 1944. [Class 40 (v)] In a pulse multiplex transmitter, pulses are applied to a delay line to which modulators are connected at intervals to produce amplitudemodulated reflected pulses whose spacing is determined by the spacing of the modulators along the delay line. Pulses generated at 1 are amplified at 2 and passed both to an output amplifier 3 and a delay line 6 formed of a number of identical sections. At the junction of each section, modulating circuits 14, 15, for the several channels, are connected. These may comprise microphones, selenium cells, or valves whose internal impedance varies with the signal. With zero modulation, a pulse entering the line is not reflected due to the matching impedance 7; but when the resistance or impedance of any one of the modulators is varied, a pulse, the amplitude of which depends upon the modulation and having a time delay determined by the position of the modulator along the delay line, is reflected back to the output amplifier 3. The original pulses also pass directly to the output and serve as marker pulses.
Patent GB-1219628-A (GB)
Title: Two-component diazotype material
IPC: G03C1/58
Filed: 1968-07-29
Abstract: 1,219,628. Bis(cyanoacetylaminoethyl)amine. KALLE A.G. 29 July, 1968 [31 July, 1967], No. 36044/68. Heading C2C. [Also in Division G2] The hydrochloride of bis[# - (cyanoacetylamino)-ethyl] amine is prepared by reacting cyanoacetic methyl ester with bis(#-amino. ethyl)amine and adding HCI to the reaction mixture.
Patent GB-847757-A (GB)
Title: Multiple glass sheet glazing unit and method of fabrication
IPC: E06B3/66
Filed: 1958-11-11
Abstract: 847,757. Glazing units. LIBBEY-OWENSFORD GLASS CO. Nov. 11, 1958 [Nov. 13, 1957], No. 36147/58. Class 20(3) [Also in Group XIII] In a glazing unit comprising two glass sheets 16, 17 spaced apart by a separator 19, a container 25 filled with a desiccant 38 is secured in spaced relationship to the separator. The container is a semi-cylindrical tube with its ends closed by hollow plugs 31, the outer end wall 34 of each ply being imperforate whereas the inner end wall 35 has one or more openings 37 communicating with the main part of the tube. Offset extensions 30 of the flat wall 27 of the tube form mounting tabs for welding the tube to the separator. In a modification, Figs 10-13 (not shown), the tube is a sliding fit in separate mounting caps secured to the separator. In assembling the unit the sealed container 25 is secured to that part of the separator 19 which extends along one edge of the unit, the lead &c. separator 19 is soldered at 22 to the glass sheets, and a channel section frame 42 of lead &c. is secured around the edges of the unit; a layer of rubber, glass fibre fabric, &c. may be located between the frame and the glass sheets. The air within the unit is then replaced by dehydrated air by means of hypodermic needles, and finally holes 39, 40 are drilled through the separator 19 and container 25 respectively. The hole 39 is sealed immediately by solder 41, and the hole 40 remains open to provide, together with holes 37, a passageway between the desiccant 38 and the surrounding air space within the unit. The desiccant may include activated alumina, anhydrous calcium sulphate or silica gel. Alternatively, sodium alumino silicates and calcium alumino silicates, either separately or combined may be used.
Patent GB-1098684-A (GB)
Title: Keyboard transmitter
IPC: H04L25/40
Filed: 1966-08-12
Abstract: 1,098,684. Data transmission systems. INTERNATIONAL BUSINESS MACHINES CORPORATION. Aug. 12, 1966 [Sept. 20, 1965], No. 36170/66. Heading H4P. In a keyboard transmitter in which each character generated is stored prior to transmission, additional keys indicative of special functions, e.g. end of text, are provided, and there is means to prevent transmission should a special function be found in the store when a character key has been operated. As described, operation of a character key 6 causes a strobe pulse generated at 13 to gate the parallel code character via 15 to store 3. Operation of a special function key 7 does not result in a strobe pulse, unit 17 providing the coded function direct to the store. If unit 19 detects a special function and if a strobe pulse is present, gate 21 triggers bi-stable unit 23, indicating a fault. At the same time, unit 25 will pulse to indicate that the store contains a character, and when the strobe pulse ends causes clock 1 to enable first a unit 27 and then a gate 28. If bi-stable 23 indicates a fault, unit 27 will then clear the store, but if it does not indicate a fault the store is read out to the transmitter.
Patent GB-1475536-A (GB)
Title: Gaming machines
IPC: G07F17/34
Filed: 1975-11-14
Abstract: 1475536 Gaming machines M J DUGGAN 14 Nov 1975 [16 Aug 1974] 36256/74 Heading G4V A gaming machine has reels 12 driven by electric motor 11 through clutch/brake mechanisms 14. Stopping of the reels is caused by operation of switches 23 by a ball 21. The ball is projected along a track so that it passes through three control devices by gravity. Each control device has a series of horizontal pins 20 so that the time for a ball to reach and activate a switch 23 is randomly determined. The ball may be projected by a solenoid 26 or manually. The track is preferably viewable by an operator through a display panel. More than one ball may be utilized.
Patent GB-1151749-A (GB)
Title: Bowling Scorer
Inventor: HOUSE ROBERT WILLIAM
IPC: A63D5/04
Filed: 1967-08-09
Abstract: 1,151,749. Bowling alley scoring apparatus. BRUNSWICK CORP. 9 Aug., 1967, No. 36512/67. Headings G4A and G4D. An electronic computer is coupled to a bowling alley, computing as required the scores of players and teams. A console for a pair of lanes comprises switches 52, 55 for setting up the number of players in each team who normally play in turn but can be skipped by means of switches 56, 59. A thumb wheel 49 permits a player to play out of turn. The operative lane is selected by switch 48 and observed pin-fall is entered by dial switch 71 or 72. When pin-fall is entered the individual player's existing score is taken out of a magnetic store and the appropriate ball, frame, player's total and team total scores are displayed in sequence on panel 90 at such a speed that an observer can copy them on to a sheet in conventional manner. Controls 62-67 provide for making corrections whereby information in the magnetic store can be adjusted.
Patent GB-1313933-A (GB)
Title: Electric motors
IPC: H02P6/14
Filed: 1970-07-29
Abstract: 1313933 Electric motors SPERRY RAND CORP 29 July 1970 [13 Aug 1969] 36695/70 Heading H2A In a brushless D.C. motor comprising a switching circuit 29 responsive to the modulated output of an electrically energized source 37 of radiant energy, the source is connected in series with amplifiers across the voltage supply, the amplifiers being responsive to a rotor position sensor and controlling gate circuits energizing the stator windings. The motor disclosed has a permanent magnet rotor 17, Fig. 1 (not shown), and two stator windings 63, 83, connected through a reversing switch 27 to respective switching transistors 59, 79, controlled by amplifying transistors 51, 73, connected in series with the source 37 across the supply lines. The source may be a light bulb or an electro-luminescent diode co-operating with a shutter (39) mounted on the rotor and a photosensitive diode 35 arranged to turn on the transistors 59, 79 alternately. Alternatively a Hall plate may be employed as the sensor, the plate co-operating with an electromagnetic source.
Patent GB-1060166-A (GB)
Title: Catalytic conversion of combustible gases
Inventor: FRILETTE VINCENT JOSEPH
IPC: C01B32/40
Filed: 1964-09-08
Abstract: The reaction CO + H2O \sX CO2 + H2 in which the four reactants are present in non-equilibrium proportions is operated in the presence of a crystalline aluminosilicate catalyst.  A crude free hydrogen containing gas, containing CO as an impurity may be mixed with steam and passed over the crystalline aluminosilicate (e.g. 0.2 to 20 moles of steam per mol. of H2). The catalyst may be regenerated to remove adsorbed CO by exposure to a stream of reducible oxygen-containing gas.  The reaction may be carried out at 300-1400 DEG  F. when operated to produce CO2 + H2 or in the range 700-1400 DEG  F. when operated to produce CO + H2O.  A large number of synthetic zeolites and naturally occurring crystalline aluminosilicates (e.g. faujasite and mordenite) are referred to.ALSO:The reaction: <FORM:1060166/C1/1> in which the four reactants are present in nonequilibrium proportions is operated in the presence of a crystalline aluminosilicate catalyst. The system may be maintained in permanent imbalance for the purpose of consuming or producing one of the reactants.  E.g. it may be used to remove water previously adsorbed on a crystalline aluminosilicate by passing CO over the aluminosilicate.  Desiccation and consumption of water may be achieved simultaneously by passing a mixture of wet unreactive gas (e.g. C6H6, N2 or rare gases) and CO over the aluminosilicate. The system may be operated to produce H2. A crude free hydrogen containing gas, containing CO as an impurity may be mixed with steam and passed over the crystalline aluminosilicate (e.g. 0.2 to 20 mols. of steam per mol. of H2).  The catalyst may be regenerated to remove adsorbed CO by exposure to a stream of reducible oxygen containing gas.  The reaction may be carried out at 300-1400 DEG  F. when operated to produce CO2 + H2 or in the range 700-1400 DEG  F. in order to produce CO + H2O.  A large number of synthetic zeolites and also naturally occurring crystalline aluminosilicates (e.g. faujasite and mordenite) are referred
Patent GB-359782-A (GB)
Title: Improvements in tables and similar articles of furniture
IPC: A47B3/12
Filed: 1930-12-06
Abstract: 359,782. Furniture joints. FREEDLAND, I., Earlston House, Upper Park Road, Broughton Park, Manchester. Dec. 6, 1930, No. 36829. [Class 52 (ii).] In a table of the kind comprising a single leg a and a base at each end, the leg is secured to the end rail b carrying the table top by bolts b<1>. The scrolls c<1>, and also the stay c connecting the legs a, are dovetailed into their lower ends as shown, and the joints between the parts c, a are stiffened by metal straps or dogs or angle members.