baber/WOPTO huggingface dataset:
Patent GB-529805-A (GB)
Title: Improvements in or relating to electrical systems for the automatic control of variables, for example, temperatures and pressures
IPC: G05B11/01
Filed: 1939-06-08
Abstract: 529,805. Electric correspondence control. DRAYTON REGULATOR & INSTRUMENT CO., Ltd., and GROVER, R. V. June 8, 1939, No. 16795. [Class 40 (i)] [Also in Group XXXV] A motor 17 actuating means 35 such as a valve or damper controlling a variable condition such as temperature, pressure or humidity, is moved proportionally to a controller 1 sensitive to the condition by varying the impedance of the circuit of the shading winding or windings 4 of an induction disc motor 5 the torque produced being opposed by a spiral spring 10 or other means exerting a force increasing with the turning of the disc. A tilting mercury reversing switch 14 is turned by the motor 5 by mechanical linkage and the proportional movement of the motor 17 in either direction required may be obtained by coupling to the motor 17 a cam 27, effecting an equal opposed tilt of the switch after a certain travel, or a rheostat 29 restoring the original impedance of the shading winding circuit. The increment of resistance in the rheostats 3, 29 may be made to decrease with the resistance by winding the wire on tapered formers. Two or more controllers 1 sensitive to the same or different conditions may vary separately the impedance of the same shading winding circuit e.g. by operating on resistances in parallel or in series and all except one such controller may operate only switches to shortcircuit or insert such resistance. In the control of temperature the controller 1 may be arranged to dissipate in the rheostat 3 a declining quantity of energy as the temperature increases thus reducing the operating differential of the apparatus.
Patent GB-217430-A (GB)
Title: Sifting container
IPC: F24B15/00
Filed: 1923-06-28
Abstract: 217,430. Calise, E. C. F. June 28, 1923. Hand sieves. - A device for sifting cinders or the like consists of two flanged dish - shaped receptacles A and a perforated plate E with an overhanging flange D on three sides.. In. use, the material to be sifted is placed in one receptacle A and the plate E slid into position over the edges, being retained by the flange D. The second receptacle is placed in an inverted position over the plate E and the parts reversed, the ashes and smaller particles passing through the plate and the cinders being retained. When not in use, the receptacles are nested into one another and the t'wo superposed edges held together by the flange on the plate E.
Patent GB-1278556-A (GB)
Title: Variable ratio brake pedal assembly
IPC: B60T7/06
Filed: 1971-05-25
Abstract: 1278556 Brake pedals FORD MOTOR CO Ltd 25 May 1971 [6 July 1970] 16832/71 Heading F2E A variable ratio brake pedal assembly comprises, a pedal lever supported for angular movement, a brake-applying device having a linearly movable actuator, and a lever, for translating the lever movement to the actuator movement having first and second cam surfaces respectively engaging the pedal lever and actuator, and constructed to provide a progressive increase in mechanical advantage ratio for the lever with respect to the actuator as the pedal is moved away from its retracted position. The cam 22 comprises two arms 24, 28 with cam surfaces 38, 34 rigidly fixed to a hub on a fixed shaft 20. Movement of the pedal 16 causes a cam follower roller 40 to move the cam 22 anticlockwise causing a cam follower roller 36 to traverse the cam surface 34 and thus move the actuator 34 to the left. This actuator 32 operates a brake master cylinder 30. Slack is initially rapidly taken up, until the actuated brake shoes are contacting the associated drums, then subsequent movement of the actuator 32 is proportionally decreased to increase braking pressure for a given pedal pressure.
Patent GB-157688-A (GB)
Title: Centrifugal machine
IPC: B04B11/02
Filed: 1920-06-22
Abstract: 157,688. Sharples, P. T. June 22, 1920. Feeding.-In a centrifugal machine with a revoluble bowl, the material to be separated is supplied through a nozzle in an axial inlet and a carrier liquid is supplied through a second nozzle extending through the first. The bottom 8 of the bowl 1 has an inlet tube 2 on which is telescoped a housing 3 screwed to the fixed part 4; within the housing is a bushing 5 and ferrule 6 held by a spring 7 to control the lateral movement of the bowl. A diaphragm 9 with a downwardly extending cone frustum 14 is supported on spacers on the bottom 8 of the bowl. A coupling-member 16 is fixed in the part 4 and carries an outer jet 17 and an inner jet 21 connected to feed-pipes 18, 22. The carrier liquid is delivered through the pipe 22 and nozzle 21, beneath the diaphragm 9 to the wall of the bowl. The material to be separated is passed through the pipe 18 and nozzle- 17 and is dispersed by the spreader 19.
Patent GB-1038557-A (GB)
Title: A theft warning device for motor vehicles
IPC: B60R25/10
Filed: 1963-04-30
Abstract: 1,038,557. Gravity and inertia switches. W. A. HILL. April 30, 1964 [April 30, 1963], No. 16908/63. Heading H2B. [Also in Division G4] A gravity switch for a vehicle theft alarm (see Division G4) comprises a ball 5, Fig. 1 (not shown) in a concave holder 4, and surrounded by a corrugated mesh contact 14, the complete assembly being mounted on a ball joint 9. Displacement of the ball 5 by vibration closes the circuit between contact 14 and holder 4.
Patent GB-400337-A (GB)
Title: Improvements in and relating to printers' furniture
IPC: B41B1/04
Filed: 1932-06-15
Abstract: 400,337. Printers' composing-appliances. WHITLING, C. C., 339A, Harrow Road, London. June 15, 1932, No. 16921. [Class 100 (iii).] Furniture.-A strip or bar A, Fig. 1, of wood, metal, &c. for use as furniture is formed with a step 1, preferably of acute-angled formation on one or both sides, so that the top and bottom of the bar are of different thickness, and that two bars can be fitted together to form a composite bar, as shown in Fig. 8. Alternatively, the bars may be assembled back to back, as shown in Fig. 2, or with the stepped faces in contact, Fig. 9. The bars may vary in thickness and are preferably of two sizes, 12 and 18 point respectively, the stepped portion having the same thickness in each size. Wider bars may be produced by the insertion of short bridge-pieces B, Fig. 3, between two bars, the bridge-pieces having stepped faces to cooperate with those of the bars. Elongated bars may be produced by placing bars end to end, and connecting them by means of bridgepieces. The bridge-pieces may be stepped on all four sides to give different effective widths. The steps may terminate short of the end of a bridge-piece, to enable it to be used as a terminal. A rectangular frame may be formed of pairs of bars fitted together at their ends, as shown in Fig. 5, one A<3> of the bars of one pair being slightly shorter than the other A<4>. The steps on the bars may be in the form of hookshaped parts of either right-angled or curved formation, and adapted to mate together. Instead of being stepped, the face of a bar may have a dovetailed or hook-shaped projection adapted to fit a recess of corresponding form in the face of another bar, or to bear against the face of the bar.
Patent GB-1513963-A (GB)
Title: Phase detector
IPC: H03D13/00
Filed: 1976-07-21
Abstract: 1513963 Phase detectors BRITISH AIRCRAFT CORP Ltd 21 July 1976 [24 April 1975] 16951/75 Heading H3A A phase detector suitable for phase lock control of a local oscillator in a superhet receiver (see Fig. 2) comprises an arrangement 20, 21 for circulating marker digits around signal paths of the same length at speeds respectively dependent on input, reference frequencies at 5, 7 and first and second detection circuits G7, G8 (Fig. 3) responsive to the relative spacing between the marker digits for generating phase lag and phase lead output signals respectively. The paths may be defined by shift registers 20, 21 and the detectors G7, G8 compare the contents of each stage of the first (or second) with the contents of the preceding stage in the second (or first) shift register for providing phase lag or lead signals to an error voltage generator 26. A third detector G9 compares the contents of each stage of one register with contents of stages lying two behind in the other register to provide a frequency error signal. In response to the appearance of a frequency error signal, a combination of fine and coarse memories 28, 29 apply a frequency error signal of the right polarity to the generator 26, to attain frequency equality within one period of the reference waveform at the end of which the registers 20, 21 are reset.
Patent GB-451304-A (GB)
Title: Process for the manufacture of new derivatives of pyrazinemonocarboxylic acid
IPC: C07D241/24
Filed: 1935-06-12
Abstract: Pyrazine-monocarboxylic acid amides and hydrazides are prepared by treating pyrazinemonocarboxylic acid chloride or alkyl ester with ammonia or hydrazine or a derivative thereof containing hydrocarbon groups substituted or not with hydroxyl or amino groups.  The products possess therapeutic properties.  Examples are given of the preparation of (1) pyrazine-monocarboxylic acid amide from the methyl ester and ammonia in warm methanol solution; (2) pyrazine-monocarboxylic acid monoethylamide by first converting the acid into its acid chloride with thionyl chloride and treating it with ethylamine in cold acetic ester; (3) pyrazine-monocarboxylic acid di-isopropylamide from the acid chloride and di-isopropylamine in benzene solution; (4) pyrazine-monocarboxylic acid hydrazide from the methyl ester and hydrazine hydrate in ethanol or methanol.  The following products are also referred to: the mono- and di-methylamides, mono- and di - butylamides, diethylamide, di - n - propylamide, mono- and di - b  - oxyethylamides, n-heptylamide, methylbenzylamide, dibenzylamide, phenylamide, b -aminoethylamide, methylhydrazide and phenylhydrazide.
Patent GB-1412847-A (GB)
Title: Resin compositions for use as adhesives
IPC: C09J4/06
Filed: 1973-04-09
Abstract: 1412847 Laminates SHOWA DENKO KK 9 April 1973 [8 April 1972 1 Dec 1972 27 Dec 1972] 16989/73 Heading B5N [Also in Division C3] Substrates such as synthetic resins, rubbers, metals, wood, paper, glass, cotton cloth and gypsum may be laiminated with adhesives comprising (A) 100 parts by weight of an ethylene/vinyl acetate copolymer or mixture thereof with polyethylene, which copolymer or mixture contains 1 to 35% byweight of vinyl acetate, (B) 0À05 to 200 parts by weight of a normally solid unsaturated carboxylic acid and (C) 0À005 to 10 parts by weight of an organic peroxide. Examples describe the use of adhesives comprising ethylene/vinyl acetate copolymer, optionally with polyethylene; fumaric, 2-methylene glutaric, itaconic, crotonic, cinnamic, maleic or citraconic; dicumyl perioxide, 2,5-dimethyl- 2,5 - dihydroperoxyhexane, 2,5 - dimethyl- 2,5 - dibenzoylperoxyhexane, 1,1 - bis - t - butylperoxy - 3,3,5 - trimethylcyclohexane or tbutyl peroxystearate; and optionally phenolic antioxidants; for laminating aluminium foil/ polyethylene, aluminium foil/polypropylene, stainless steel/polyethylene/aluminium foil, galvanized iron/polyethylene/aluminium foil, aluminium foil/polyvinyl chloride sheet/aluminium foil, aluminium foil/polyvinyl chloride sheet/steel plate, wood/polyvinyl chloride sheet and glass/polyvinyl chloride sheet.
Patent GB-1205277-A (GB)
Title: Improvements in or relating to means for controlling the pressure of a gaseous medium.
Inventor: ROBENS ERICH
IPC: G05B19/07
Filed: 1968-04-09
Abstract: 1,205,277. Automatic pressure control. SARTORIUS-WERKE G.m.b.H. April 9, 1968 [April 12, 1967], No.17112/68. Heading G3R. A desired pressure is maintained in a chamber supplied with gas through a series arrangement of reducing valve, solenoid valve and control valve, and exhausted through a series arrangement of control valve and solenoid valve by electrical means, responsive to the pressure, controlling the solenoid valves and a motor-operating one of the control valves. As shown, nitrogen from a high-pressure source 1 is supplied to a receiver 5 through a pressure reducing valve 2, solenoidoperated valves 3, 3 and differently adjusted throttle valves 4, 4. Gas is withdrawn from the receiver by a pump 11 through a solenoid-operated valve 10 and a motor-operated valve 8. A gauge 6 produces an electrical signal, corresponding to receiver pressure, which is compared with a reference signal so that any error is effective to operate a galvanometer 7. Light responsive pickoffs associated with the pointer of galvanometer 7 maintain receiver pressure between predetermined limits. At the upper limit valve 10 is opened and the opening of valve 8 gradually increased. At one lower limit one valve 3 is opened and at a still lower limit both valves 3, 3 are opened. The pressure datum may be varied with time by a timer 12 causing step by step adjustment of resistances which determine the value of the reference signal. Use of only one set of valves 3 and 4 and location of motor -operated valve 8 on the input side of the receiver are referred to.
Patent GB-298143-A (GB)
Title: Improvements relating to gas condensers
IPC: B01D5/00
Filed: 1927-06-28
Abstract: 298,143. Blakeley, W. June 28, 1927. Condensers, atmospheric.-In a gas condenser of the kind described in Specification 191 ,644. and comprising a series of air cooled columns D fitted with external inclined baffle plates E, the last column of the series is provided with a single continuous water passage in the form of a tube or tubes extending within the column from one side to the other in zig-zag formation. The water passage may comprise tubes A joined by caps C, Fig. 4, or alternatively a single con. tinuous tube D supported on uprights d, Fig. 6.
Patent GB-319294-A (GB)
Title: Improvements in and relating to artificial silk and like filamentary material
Filed: 1928-06-13
Abstract: 319,294. Field, C. H., and Haslett, D. June 13, 1928. Cellulose acetate, cellulose nitrate, and cellulose xanthate, processes. for making filaments from.-Artificial silk and like filaments are prepared from a mixture of cellulose xanthate with cellulose acetate and/or with cellulose nitrate dissolved or dispersed in a. solvent or solvent mixture comprising monochlorhydrin, dichlorhydrin, epichlorhydrin, one of the acetins or like esters of glycerine, or glycerine itself, or mixtures of any two or more of these compounds; other solvents such as acetone or amyl acetate may be present also. For example a solution constituted as described above may be extruded into a bath comprising hydrochloric acid and ammonium chloride; if epichlorhydrin is present in the solvent, it is converted by the bath into dichlorhydrin and can be regenerated by treatment with alkali. It is preferred to use cellulose xanthate containing a minimal proportion of water. Thus. a xanthate sol prepared in known manner may be exposed to the air so as to effect spontaneous coagulation, the use of precipitants being avoided, and mav be treated with monochlorhydrin and/or dichlorhydrin so as to displace a further proportion of water. According to the example, cellulose acetate and cellulose nitrate are dissolved separately in epiohlorhydrin, and cellulose xanthate is dissolved in a mixture of glycerine, and dichlorhydrin; the xanthate solution is mixed with the acetate solution and/or with the nitrate solution and the mixture is extruded into a bath comprising specified amounts of hydrochloric acid and ammonium chloride.
Patent GB-935184-A (GB)
Title: Improvements in or relating to mass spectrometers
IPC: H01J49/38
Filed: 1960-05-16
Abstract: 935,184. Mass spectrometers. PHILIPS ELECTRICAL INDUSTRIES Ltd. May 16, 1960 [May 19, 1959], No. 17210/60. Class 39 (1). In a high-frequency mass spectrometer of the cyclotron resonance or omegatron type, an electron beam of diameter less than 0.5 mm. is projected from cathode 4 in a direction parallel to a homogenous static magnetic field into an ionization zone bounded by sets of electrodes 1, 2, 3 which lie in planes subdividing two conjugate hyperboloids of revolution. The sets of electrodes 1, 3 and 2 are respectively connected to potentiometers 10 and 11 comprising a number of resistors. A small positive potential is produced across potentiometer 10 while potentiometer 11 is at earth potential. The H.F. source 12 is connected across the potentiometers 10, 11. The ion current collected by electrodes 2 is measured by amplifier 13. The tangent of the angle between the asymptotic surfaces of the hyperboloids and the axis of revolution equals #2, whereby the radial field strength in the ionization chamber is proportional to the distance from the axis. The remaining electrodes shown, include a screen electrode 5, a control electrode 6 for maintaining constant electron current, two screening electrodes 7, 8, and an electron collector electrode 9.
Patent GB-483635-A (GB)
Title: Improvements in or relating to electric systems for controlling the position of a controlled object
IPC: G05D3/14
Filed: 1936-07-20
Abstract: 483,635. Electric control systems. HULL, H. L., SPERRY GYROSCOPE CO., Ltd., and SPERRY GYROSCOPE CO., Inc. July 20, 1936. No. 17232. Addition to 473,753. [Class 40 (i)] In the position control system claimed in the parent Specification wherein a controlled object is driven into a predetermined angular position relatively to a controlling object, by driving means which are controlled in accordance with the relative angular displacement of the objects and its second derivatives, viz. acceleration, the driving means are also controlled in accordance with the velocity derivative, the acceleration and velocity derivatives being obtained by reactance and resistance elements included in a network. The Figure shows a circuit wherein an output voltage V for controlling the driving means is composed of three voltages V<3>, V<2>, V<1> proportional to displacement, velocity and acceleration and derived from an input voltage v which is proportional to the relative displacement. The voltage V<1> is produced by a transformer having capacity C in series with its primary and consequently is proportional to the first derivative of the capacity current and therefore to the second derivative of the voltage v assuming the impedance of C is high relatively to that of the transformer. The voltage V<2> is derived from a second transformer having a resistance G in its primary circuit so that the voltage V<2> is proportional to the first derivative of the primary current and therefore to the first derivative of v. The voltage V<3> is tapped off directly from a resistance R and is proportional to v. The circuit arrangement may be modified so as to effect the operation of a pair of oppositely-connected gas-discharge tubes, Fig. 8 (not shown). An additional constant bias voltage for the tubes may be introduced into the control circuits. Several circuits are described for producing the first and second derivatives involving different connections of the condenser, resistance and transformer. Specification 480,115 is referred to.
Patent GB-120955-A (GB)
Title: Improvements in or relating to Stiffeners for Boots or Shoes and/or Methods of Producing the same
IPC: A43D8/04
Filed: 1917-11-23
Abstract: 120,955. British United Shoe Machinery Co., (United Shoe Machinery Co.). Nov. 23,1917. Stiffeners.-Heel counters, toe puffs, and like stiffeners for boots and shoes are cut 'by machine from stock and simultaneously bevelled by dipping out from one side of the stock a series of stiffeners which, in the stock, overlap each other, as shown in Fig. 8. A machine for use in carrying out this method comprises a pair of parallel shafts 7, 23, Fig. 1, geared together and carrying respectively a matrix roll 9 and a die roll 25. One end of the lower shaft 23, which is in two parts connected by an Oldham coupling 27, has bearings in a yoke 21 yieldingly supported by an adjustable spring 35. As the stock is fed through the machine, it is forced into the matrix roll 9, and a stationary knife 37 dips out a stiffener having a thick middle portion and a continuous bevelled edge. The shafts 7, 23 are arranged so that a space is left for free manipulation of the stock in all directions in an horizontal plane between the rolls. The stiffeners are dipped out in the direction of their height, and preferably from the grain side of the stock, the first stiffener being a perfect grain one, while the others of the series each have a small portion of flesh surface 200, Fig. 9, caused by a lateral shifting of the stock for the second and subsequent feeding movements between the rolls to provide for the overlap above referred to. In order to support the bevelled edge of the stock left after the cutting of each stiffener and to press it into the matrix, a groove 47, Fig. 7, is cut in the lower roll 25 to receive a cam 49, Fig. 4, which is located so as to hold a presser 51 with its upper edge protruding from the groove. The presser 51 is recessed at 53 to form two resilient fingers which allow the presser to be compressed into inoperative position when the stock is fed for the cutting of the first stiffener.
Patent GB-412567-A (GB)
Title: Type cylinder typewriting machine
IPC: B41J1/32
Filed: 1932-09-24
Abstract: 412,567. Typewriters. FISCHER, O., Kappelhof, near Friedrichshafen, Wurtemberg, and INHOFFEN, W., 24, Maassenstrasse, Berlin, both in Germany. Sept. 24, 1932, No. 17366/34. Divided on 412,557 under which a Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 10, 1932. [Class 100 (iv).] Keys.-In typewriters having changeable keys and a changeable typecylinder, the head of each key-lever 110 is formed with an offset tongue 110<1>, and the key is formed in the base with a slot for engaging the head and tongue when the key is pushed downwards. The head and tongue and the walls of the slot are preferably bevelled. When keys in different banks are arranged in alignment, sone of the key-levers are cranked to bring the heads into alignment so that the slots may be formed at the same position in all the keys. Specification 412,568 is referred to.
Patent GB-497715-A (GB)
Title: Improvements in and relating to electrical meters, relays and like instruments
IPC: G01R1/30
Filed: 1937-06-22
Abstract: 497,715. Power factor measurements; non-metal resistances. SOMERVILLE, T. B., and METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. June 22, 1937, No. 17395. [Class 37] [Also in Groups XXXVII, V, and XXXV] An electric meter, relay or like instrument has one or more of its coils shunted by a non- linear resistance having an index B not greater than 4, where the relationship between current and voltage is expressed by the equation V=KI<B>. The arrangement is such that variations of voltage or current produce no substantial variation of the ampere turns of the coil or coils of the instrument and is specially applicable to power factor indicators or relays intended to respond to phase displacement between the current and voltage coils but not to variations of voltage. In the arrangement shown in Fig. 1, the non-linear resistance 6 is placed in shunt to the coil 1 of the instrument. With increase of voltage between the points 4, 5, the decrease of resistance of the resistance 6 causes a greater proportion of the current to pass through it, so that the amount of current passing through the coil 1 remains substantially unaltered. A similar arrangement may be adopted for an instrument having a current coil instead of a voltage coil 1, Fig. 2 (not shown). The resistance may be that sold under the Registered Trade Mark " Metrosil " and may comprise a composition of ball clay, carborundum and graphite pressed into a block and fired, the surfaces to which electrical connection is to be made being sprayed with zinc or other metal. Fig. 3 shows a series of discs 21 of such a material threaded on a rod 22, plates 25, 26 being inserted between the discs as shown to enable the discs to be connected together in parallel, series parallel &c.