baber/WOPTO huggingface dataset:
Patent GB-1000347-A (GB)
Title: Carbon and duplicating paper
IPC: B41M5/10
Filed: 1962-01-24
Abstract: A composition used as a "carbon" coating in a "carbon" paper (see Division D2) comprises ethylcellulose, a ketonic resin, polyvinyl ethyl ether, liquid polyglycol, solid polyglycol and magnetic iron oxide.  The ketonic resin is made by the alkaline condensation of cyclohexanone and methylcyclohexanone. The composition is applied as a solution in ethyl alcohol.ALSO:A carbon or duplicating paper in sheet or ribbon form comprises a carrier layer of synthetic plastics or recinous material and a colour layer comprising pigment, binder and softener.  The binder is a mixture of a cellulose derivative (e.g. ethyl cellulose) and a synthetic resin, e.g. one made by the alkaline condensation of cyclohexanone and methyloyclohexanone.  The ratio of pigment to binder is at least 2:1.  The softener may also be a mixture, e.g. of polyvinyl ether and polyglycols, and the polyglycol may in turn be a mixture of liquid and solid polyglycol. The pigment is magnetic or may be a mixture of a magnetic pigment and soot black or milori blue.
Patent GB-736879-A (GB)
Title: Improvements in or relating to pipe, hose, or like couplings
Inventor: LOVE JOHN
IPC: F16L23/10
Filed: 1953-01-29
Abstract: 736,879. Band clips. K.A.C., Ltd. Jan. 29, 1954 [Jan. 29, 1953], No. 2639/53. Class 44. [Also in Group XXVIII] A clamping ring for connecting together in coaxial alignment two externally peripherallyflanged members e.g. pipes, hoses or the like, comprises a plurality of sections 2-5 which except for the end sections 2, 3 are connected together in end to end relationship so that the clamping ring is flexible in a plane through the ring perpendicular to its axis but substantially inflexible transversely of this plane, and fastening means 11, 12 for connecting the two end sections and for drawing them together to tighten the clamping ring around the flanges, the fastening means comprising a nut 11 swivelably mounted on one of the end section 2, a screw-threaded bolt 12 screwing into the nut 11 so as to swivel with it and having its headend 15 adapted to be engaged in the other end section 3 of the clamping ring, which section has an open ended slot 20 to receive the head end of the bolt, the bolt having on the inner end of its head or on a part positioned adjacent to the head, a bearing surface 17 adapted to engage and seat in a recessed seating 18 provided in the slotted end section adjacent to the slot at the side remote from the other end section, the bearing surface and the seating being shaped so that the head end of the bolt has a universal or ball joint type of engagement with the slotted end section so as to permit angular adjustment of the bolt with respect to the end sections as the clamping ring is tightened or released. As shown four sections are used pivoted together end to end and each section is channel-shaped with tapering side walls so that a wedging action is exerted on the flanges when the bolt is tightened. Both the bearing surface 17 and seating 18 are part-spherical in shape and a cup-like washer 22 is positioned between them this washer being connected by a chain 24 to one of the flanged members to be connected so that the coupling cannot be lost. The two flanges which are joined by the coupling are intended to have a rubber sealing ring positioned between them in facing grooves which is compressed when the coupling is tightened.
Patent GB-588199-A (GB)
Title: A system for controlling the movement of a rotatable member through a predetermined arc of movement
IPC: H03J7/30
Filed: 1945-02-02
Abstract: 588,199. Radio receiving systems. AMALGAMATED WIRELESS (AUSTRALASIA), Ltd. Feb. 2, 1945, No. 2738. Convention date, March 3, 1944. [Class 40 (v)] [Also in Group XXXVII] The repeated turning of a rotatable member (for example tuning condenser ptates) through a predetermined are of movement and then back through the same arc is attained by using the rectified component of the beat frequency, which is produced by mixing the outputs of a fixed frequency oscillator and further oscillator whose frequency is dependent upon the angular position of the rotatable member, to control the direction of the turning of the rotatable member: A reversible motor 4 drives the rotating member 3 which is directly coupled to the frequency determining component of the Oscillator 5. The resulting output from this oscilator, varying in frequency after passing through balanced line 7, 7a and coupling transformers 8, 9 is mixed at 10 with the output of a fixed frequency oscillator 11. This produces a varying beat frequency which, after amplification if necessary, is fed to a high-pass filter 12 whose output builds up in amplitude as the pass frequency is approached. When this amplitude is sufficiently high it overcomes the static bias of a rectifier 13 and the rectified current actuates a relay 14, which in turn actuates a Flip-Flop type relay 15. Relay 15 is used, either directly or indirectly, to operate the reversing switches 16, 17 of the motor 4. For indirect or remote control, the relay 15, in one of its stable positions, may cause a current to flow from supply source 19 through line 7a to a relay 23 to actuate switch 16, and in its other stable position cause a current to flow in the opposite direction so actuating the switch 17. The arc of movement is determined by the pass frequency of the filter 12 and the bias on the rectifier 13 and the mid-point of the arc is determined by the frequency of the oscillator 11 since it is at this point that the frequencies of both oscillators 5, 11 are the same, i.e. the bent frequency is zero. A frequency meter may be inserted in the output circuit of the oacillator 5 to give a visual indication of the angular position of the rotatable member 3.
Patent GB-1441847-A (GB)
Title: Electricity meter or electrically operated counter with switch  means which are reversible through an audio-frequency powerline  control receiver
IPC: G01R11/58
Filed: 1974-01-21
Abstract: 1441847 Remote-control LICENTIA PATENT-VERWALTUNGS GmbH 21 Jan 1974 [20 Jan 1973] 02825/74 Heading G4H An electricity meter or electrically-operated counter has switch means for actuating changeover switches (e.g. for tariff changing) and includes an audio-frequency powerline control receiver which is an integrated component of the meter/counter and is responsive to a predetermined on-line pulse code to actuate said switch means. The receiver is an electronic chip within the meter/counter housing and involves a filter for the audio signals, means to discriminate against a start signal which is too long or too short, and a counter connected through changeable plug connections to a signal register for comparison of the signals with a reference code to actuate the switch means.
Patent GB-1037964-A (GB)
Title: Memory
IPC: G11C11/06
Filed: 1964-01-22
Abstract: 1,037,964. Circuits employing bi-stable magnetic elements. RADIO CORPORATION OF AMERICA. Jan. 22, 1964 [Feb. 4, 1963], No. 2840/64. Heading H3B. [Also in Division G4] In a memory including a plurality of conductors each linking a plurality of storage elements, read and write drivers and read and write switches of the corresponding rows and columns are each connected to the appropriate ends of all the lines through diodes poled to present a low impedance to current flow in a single direction between drivers and switch. The arrangement of the Figure shows a plurality of address lines 11, 12, 21, 22 arranged in columns and rows and each linking a plurality of ferrite cores 3, the lines representing a word line in a word organized or two-dimensional memory or may represent an X line or Y line in a coincident current or three-dimensional memory. One of the address lines is selected for read and write operations by closing one of the read or write switches RS 1 , RS 2 , WS 1 , WS 2  and by energizing one of the read or write drivers RD 1 , RD 2 , WD 1 , WD 2 , the switches and drivers being connected to the lines as shown through diodes 5, 6, 7, 8. Line 21 may be chosen for a read operation by closing switch RS 1  so as to render diodes 6 of lines 11, 21 conductive so that when read driver RD 2  is energized a positive pulse passes through unbiased diode 5 of line 21, through forward biased diode 6 and read switch RS 1  to ground. The positive pulse is insufficient to overcome the reverse bias on diode 5 of line 22 so that this line remains unenergized. In order to pass a write pulse through line 21, this pulse passing in the opposite direction through the line to the read pulse, read switch RS 1  is opened and write switch WS 1  is closed, the latter then maintaining lines 11, 21 at ground potential. A pulse from write driver WD 2  is now passed solely through diodes 7, 8 of line 21 to ground through write switch WS 1 . Diode 7 of line 22 remains reverse biased during the write pulse. The switches and drivers may be conventional transistor circuits.
Patent GB-535454-A (GB)
Title: Improvements in treatment of rubber
IPC: C08K5/3412
Filed: 1940-02-15
Abstract: 535,454. Anti-agers for aldehydes ; heterocyclic compounds. UNITED STATES RUBBER CO. Feb. 15, 1940, No. 2894. Convention date, March 28, 1939. [Class 2 (iii)] [Also in Groups V and III] Aldehydes are preserved from ageing by adding compounds of the formula X-A-X<SP>1</SP> in which A is an aliphatic chain of at least two carbon atoms and which may contain a hydroxyl radical and X and X<SP>1</SP> are N-heterocyclic radicals, the nitrogen atoms being joined to the terminal carbon atoms of the aliphatic chain. Examples are α,#-di (2, 5-dimethylpyrryl) ethane, which may be made by condensing ethylene diamine with acetonyl acetone, α-#- di (2:5 dimethylpyrryl)-#-hydroxypropane, piperidyl-1-morpholyl-3-propanol-2, α, #-dipyrrolidinyl ethane, which may be made by reacting ethylene bromide with pyrrolidine in the presence of sodium carbonate or dimethylaniline, and α- (2, 5-dimethylpyrryl)-#-piperidylethane which may be prepared from acetonylacetone and α-amino-#-piperidylethane which is itself prepared from piperidyl-ethyl phthalimide starting with #-chloroethylamine. X and X<SP>1</SP> may also be tetrahydroquinolyl, tetrahydroiso-quinolyl, 2, 4-dimethyl-pyrryl, 2- methyl-4-ethyl-pyrryl, pyrrolinyl, indolyl, indolinyl, carbazyl, phenanthro-benzo-pyrrolyl, indazolyl, piperidinyl, pipecolyl, quinaldinyl and their hydrogenated and alkylated derivatives.
Patent GB-898666-A (GB)
Title: Hatch cover assemblies for use on ships
IPC: B63B19/16
Filed: 1961-01-25
Abstract: 898,666. Hatch covers. MUNCK, S Jan. 25, 1961 [Oct. 19, 1960], No. 2905/61. Class 113. [Also in Group XXX] A hatch cover 14 is supported by four posts to which may be raised and lowered in guides 16 by jacks 17 the cover 14, which is of unitory construction, supports a loading and unloading crane 21 through beams 19 and 20. The beams 19 may be moved to a position in which the crane 21 overhangs the quay or is directly over the hatch opening. A cover may be provided on the beams 19 to afford weather protection for the crane 21 when extended.
Patent GB-818197-A (GB)
Title: Improvements in fuel injection devices for multi-cylinder internal combustion engines
IPC: F02M59/36
Filed: 1957-01-28
Abstract: 818,197. Fuel injection systems; valve gear. BESSIERE, P. E. Jan. 28, 1957 [Jan. 31, 1956; Aug. 1, 1956], No. 2928/57. Classes 7(3) and 7(6) In a multicylinder engine having a single injection pump 1 feeding a number of injectors 12 with spring-loaded fuel injection valves opened by fuel pressure, the supply pipe 11a...d to each injector is provided with a second valve 14 held closed by an electro-magnet 16 and opened by fuel pressure when the electromagnet is deenergized during the injection period of its associated injector. The pump 1 delivers into a chamber 10 to which are connected the injector pipes 11a-d each of which is connected to a recess 19 in an injector body 15 in which slides the valve 14 connected to the electromagnet armature 17 and controlling the passage 13 leading to the injection valve. The electromagnets 16a...d, Fig. 2, are controlled by a rotating distributer device 20 on an extension of the pump camshaft 2 the distributer having conducting strips 21a...d with insulating. segments which ensure de-energization of the electromagnets at the appropriate times. The period of injection is controlled by an electromagnetically operated by-pass valve 34 on the chamber 10 which is opened before the end of each pumping stroke to by-pass fuel through orifice 32 and terminate injection. The electromagnet 25, which is normally energized to hold valve 24 closed, is de-energized at appropriate intervals by insulating segments 35 on a rotating conducting strips 34, Fig. 3. combined with the distributer 20, Fig. 2. The segments 35 are inclined so that the period of injection can be adjusted by movement of the strips 34 axially, or of the brush 33 along the strip, either manually or automatically by a governor. The valves 14 may be mounted on the wall of chamber 10 instead of in the injectors.
Patent GB-1080298-A (GB)
Title: Carpet sweeping and like machines
IPC: A47L11/20
Filed: 1966-01-21
Abstract: 1,080,298. Suction cleaners. E. FABER, R. D. HAHN, H. HAHN and B. WORWAG [trading as MAUZ & PFEIFFER]. Jan. 21, 1966 [Jan. 21, 1965; April 15, 1965], No. 2963/66. Heading A4F. In a suction cleaner a brushing roller 6 driven by a motor 1 is carried by arms 4, 5 secured to the motor casing 7 which is connected to the cleaner housing 2 by a hinge 3a, 3b, 3c about which the motor 1 and the brush 6 may be swung. The motor 1 also drives a suction fan 11 within the casing 7, which has a suction opening 15 so arranged relatively to an opening 16 in the housing 2 that when the connector of a suction hose is inserted into the openings 15, 16 the motor casing 7 is raised to lift the brush roller 6 from the surface on which the machine rests. In an alternative embodiment the motor casing may be raised by a manually operated rotary cam mechanism to lift the brush roller 6.
Patent GB-1501441-A (GB)
Title: Sound attenuating devices
IPC: F16L55/02
Filed: 1975-01-23
Abstract: 1501441 Silencers BRUNSWICK CORP 23 Jan 1975 [1 Feb 1974] 3056/75 Heading F1B A device, for attenuating sound in a fluid when flowing therefrom, comprises a housing surrounding a conduit having an inlet and an outlet, the conduit having in series after the inlet, first means for attenuating L.F. sound entering the device, and second means for attenuating H.F. sound entering the device and consisting of a duct having a foraminous wall which has a pre-selected acoustical resistance to the passage therethrough of H.F. sound, the resistance being substantially the same value as the impedance of the flowing fluid in use of the device, the first means attenuating the L.F. sound to a level sufficiently low to enable the wall of the duct to effectively function at its pre-selected acoustical resistance. Conduit 10 is enclosed over part of its length by housing 11 which forms a low frequency (less than 500 Hz) resonator communicating with the conduit through ports 15. This section of the device reduces the level of L.F. sound to less than 120 db. The portion of the conduit 10 downstream of ports 15 has a foraminous wall and is enclosed by wall 21 to form tuned cavities the radial dimension a of which is one-quarter of the wavelength to which the cavity is tuned. The resistance to flow through the foraminous wall of the conduit is stated to be increased if L.F. sound at a level greater than 120 db is present in the gas stream and the reduction of L.F. sound levels to below this figure, by the L.F. resonator, is stated to enhance the efficiency of the second stage in reducing the level of H.F. sounds. The foraminous portion of the tube may comprise a perforated tube, metal fibre web, knitted fibre or wire, compacted fibre, foamed metals or non-metals, glass or plastics fibre, porous ceramics or combinations thereof. A preferred construction, Fig. 12, consists of a perforated tube 52 with a lining of metal, organic or ceramic fibres 54 which have a protective coating of an oxidation catalyst such as nickel, platinum, aluminium oxide or copper oxide. In a modified construction Fig. 4 (not shown) a middle frequency (500-1000 Hz) resonator is provided downstream of the H.F. attenuator. In a second modification, Fig. 6, the housing includes three L.F. resonators 41 connected to the tube by ports 37 and H.F. standing wave cavities 41. In a third modification, Fig. 8, two parallel tubes 27 are contained in housing 23 and have foraminous wall portions co-extensive with H.F. standing wave cavities 32. L.F. resonators 30 are provided at each end of the housing and there are central, middlefrequency resonators 31.
Patent GB-801026-A (GB)
Title: Therapeutic product
IPC: A61K31/515
Filed: 1957-01-29
Abstract: A therapeutic preparation suitable for oral administration contains reserpine which may be present in each dosage unit in amount from 0.01 to 0.25 mgm., phenobarbital which may be present from 3.0 to 75 mgm. and a ,a -diphenyl-g -dimethylaminovaleramide (aminopentamide) or a non-toxic acid addition salt, e.g. hydrogen sulphate, thereof which may be present from 0.05 to 1.25 mgm. per dosage unit.  The preparation may take the form of powders, tablets, capsules, liquid suspensions, in edible oils, e.g. coconut oil, particularly if free from tristearin and gelled with aluminium stearate according to U.S.A.  Specification 2,507,193, or as coatings on seeds or pellets, e.g. sugar non-pareils, which may have an euteric coating, and may be encapsulated or tableted to achieve a gradual release of the preparation.  Other materials such as buffers, preservatives, diluents, e.g. lactose, binders, e.g. starch, lubricants, e.g. magnesium stearate, masticatory substances, colours, flavours, suspending, resuspending, stabilizing or dispersing agents, e.g. calcium phosphates, may also be present.
Patent GB-575037-A (GB)
Title: Improvements in or relating to closure caps for containers
IPC: B65D41/16
Filed: 1944-02-21
Abstract: 575,037. Closures for jars &c. CROWN CORK & SEAL CO., Inc. Feb. 21, 1944, No. 3218. Convention date, Feb. 19, 1943. [Class 125 (iii)] The mouth of a jar 10 or other container is provided with an annular projection 13 beneath which lugs 19 on the closure flange 16 resiliently engage, projection 21 located between the lugs 19 abutting the edge of the annulus 13 to restrict the flexing of the flange when the closure is being levered open. A washer 18 completes the closure.
Patent GB-1339406-A (GB)
Title: Fired heaters
Inventor: CROSS A
IPC: B01J19/00
Filed: 1972-01-24
Abstract: 1339406 Tubular reactors LUMMUS CO 24 Jan 1972 [25 Jan 1971] 3280/72 Heading C5E [Also in Division F4] A tubular reactor, e.g. for heating CO- containing gases or for the pyrolysis or reforming of hydrocarbons, comprises two banks of vertical heating tubes 31, 32 mounted in two separate radiant zones 20, 21 defined by inner and outer walls 13, 14 and 11, 12 carrying radiant burners 18, inlet and outlet manifolds 36, 37  connected respectively with the foot of each tube 31 and each tube 32, and cross-over tubes 38 (Fig. 1) in horizontal passage 33 interconnecting tubes 31 and 32 to provide a continuous flow passage from inlet 36 via tubes 31, 32 to outlet 37. The reactor may also include horizontal tubes 35 forming convection zone 30 in fluid flow communication with passage 33, to heat the same or a different fluid from that passing through the radiant zones. The firing rate of each burner 18 is regulated by the supply of fuel through valved line 42 from manifold 41. The Fig. 2 modification shows the cross-over tubes 106 in lower horizontal passage 103. The fluid may make a single pass or a number of passes in each radiant section. The apparatus may be used to heat a CO- containing gas, e.g. a gas containing CO + H 2  for the reduction of iron ore or the regenerated reducer gas therefrom. Preferably the gas introduced at 800-1000 F. is heated to 1200- 1400 F. in a residence time less than 0À2 sees. in the first radiant section, and then to 1400- 1700 F. in the second, in an overall residence time less than 0À4 sees. The heater may also be used to pyrolyse ethane, propane, naphtha or gas oils to produce ethylene, generally in the presence of steam, or for reforming hydrocarbons with steam and/or CO 2 , in particular for the steam reforming of a gas containing CH 4 , H 2  + CO, produced by the reforming of ethane, propane or naphtha, to produce a gas containing CO + H 2 , the first stage in the absence of catalyst and the second in the presence of, e.g. Ni.
Patent GB-1487265-A (GB)
Title: System for the intermittent operation of a wiper motor for vehicles
IPC: B60S1/08
Filed: 1975-01-24
Abstract: 1487265 Control of D.C. motors SWFSPEZIALFABRIK FUER AUTOZUBEHOER GUSTAV RAU GmbH 24 Jan 1975 [2 March 1974] 3304/75 Heading H2J The wiper motor M of a vehicle is energized from a D.C. supply 15, 31 and controlled by a parking switch RS, a wiper switch WS, an intermittent operation switch S and an intermittent dwell control device KS, movement of the switch WS to position I or II causing the motor to run continuously at a low or high speed respectively, movement of switch WS to position 0 with switch S open completing a short-circuit braking circuit across the motor via terminals 53, 87, relay contact a, wiper switch WS, terminal 31b and the closed centre and left outer contacts of switch RS, and closure of switch S with switch WS in position 0 producing a succession of single wiping cycles for as long as switch S is closed, each wiping cycle consisting of the following sequence of operations: (1) Capacitor C is charged from terminal 15 through switch S, variable resistor P, switch WS and the closed centre and left outer contacts of switch RS to terminal 31. (2) Transistor T2 conducts to turn on transistor T1 and so energize relay A ,whose contact a changes over to break the short-circuit across the motor and connects its low speed winding (terminals 53, 53a) across terminals 15, 31. (3) The resultant motor movement changes over the centre contact of switch RS to engage the right outer contact and so connect capacitor C to the terminal 15 through the switch WS, the capacitor voltage changing to the volt drop across resistor P. (4) When the wiping cycle is completed, the switch RS returns to its original state to connect capacitor C through switch WS across the base-emitter junction of transistor T2, which turns off to switch off transistor T, de-energize relay A and change over contact a. (5) Contact a re-establishes the motor braking circuit to stop the motor and capacitor C first discharges through switch WS, switch RS, terminals 31, 15, switch S and resistor P and then recharges through this same circuit to commence another wiping cycle, the delay between cycles being variable by adjustment of resistor P.
Patent GB-341730-A (GB)
Title: Improvements in the manufacture of organic esters and acids
IPC: C07C67/02
Filed: 1930-01-31
Abstract: Alkyl esters of one carboxylic acid are converted into the corresponding esters of another carboxylic acid by treatment with the latter acid in the presence of an esterification catalyst such as sulphuric acid or zinc chloride.  If the ester produced has a lower boiling point than the original ester, it may be removed from the reaction by distillation as it is produced, and the process may then be made continuous by continuously renewing the starting materials. According to examples (1) a mixture of ethyl acetate and formic acid with some concentrated sulphuric acid is distilled through a fractionating column so that first ethyl formate and then unconverted ethyl acetate are removed, the residue containing formic and acetic acids, (2) a mixture of ethyl propionate and acetic acid is treated as in example (1), the products being ethyl acetate and propionic acid; (3) from a mixture of ethyl lactate and acetic acid ethyl acetate, lactic acid, and lactic anhydride are obtained, and (4) ethyl acetate is obtained from a mixture of diethyl carbonate and acetic acid.