baber/WOPTO huggingface dataset:
Patent GB-1347097-A (GB)
Title: Liquid jet recorder
IPC: B41J2/105
Filed: 1971-04-19
Abstract: 1347097 Ink jet recorders C H HERTZ 19 April 1971 [2 April 1970 15 Sept 1970] 26036/71 Addition to 1275936 Heading B6P An ink jet recorder comprises a plurality of nozzles 12k, 121, 12m, each producing a jet of electrically conductive tracing liquid along a path towards a record carrier 2, means for placing the liquid under pressure in each said nozzle, control electrode means 3 positioned in relation to the point of droplet formation in each said jet such that when a control voltage is applied between the electrode means 3j and the liquid, the droplets in a selected one or more of the jets are transformed into a cloud most of which deposits on the electrode means 3j, and means for synchronously varying the path of each jet in periodic manner. The nozzles may be held in a beam 13, reciprocated so as to vary the jet paths, by an electromagnet 8 carrying alternating current, the record carrier 2 moving perpendicularly to the direction of oscillation so that the ink jet paths each describe a sinusoidal trace on the carrier, the control electrode means controlling dot formation along the traces so as to form characters, Figs. 2 and 3 (not shown). The jet paths may alternatively be varied by applying alternating current or an air stream perpendicularly to the jets or by oscillating the nozzles by purely mechanical means. Piezoelectric, photoelectric, capacitive, resistive or inductive means may be used to synchronize the beam movement and the pulses of the control electrode means. Each nozzle may have its own control electrode (3f), (3g), (3h), (3i), Fig. 5 (not shown). Immersion electrodes 19k, 191, 19m alter the potential in the liquid from each nozzle, the nozzles being separated from a supply pipe 21 by narrow tubes 22k, 221, 22m. The two plates of electrode means 3j may be at the same constant potential, different potentials or connected to a pulse generator. A porous shutter at a certain potential may be provided between the control electrode means and the record carrier and the plurality of nozzles may produce co-planar or non- co-planar, e.g. converging, jets. The control electrodes may be porous or trough-shaped, Fig. 8 (not shown) to facilitate removal of deposited tracing liquid by suction, the liquid being returned to the system. Addition of a solvent to the liquid is controlled by osmosis. The reciprocating beam may be in the form of a housing, Fig. 10 (not shown), which can be flooded with suitable liquid to prevent clogging of the nozzles when the recorder is inoperative. Alternatively tubes may be used to supply such liquid to the nozzles. Jets may be applied to both sides of the record carrier. Drop formation in the jet may be enhanced by vibrating the nozzle.
Patent GB-486181-A (GB)
Title: Improvements in and relating to luminous signs
IPC: G09F13/20
Filed: 1937-09-25
Abstract: 486,181. Luminous signs. SCHIPPER, A. J. Sept. 25, 1937, No. 26051. Convention date, Sept. 25, 1936. [Class 3 (ii)] [Also in Group XX] A sign comprises a transparent base on which display matter is formed by luminous paint, and a transparent front spaced from the base, the edges of the base and front being sealed and the intervening space at least partly evacuated. The sign may be mounted at the front of an illuminated casing.
Patent GB-224692-A (GB)
Title: Improvements in or relating to automatic and semi-automatic telephone systems
IPC: H04Q3/00
Filed: 1923-10-20
Abstract: 224,692. Coventry Automatic Telephones, Ltd., and Collyer, J. E. Oct. 20, 1923. Automatic exchange systems.-The circuits of a line-switch of the " normal " type are such that, during release, the line tests free, but should it be seized by a final selector at this time, the cut-off relay is unable to operate until the restoring movement is completed. The line relay, upon energization, completes circuits for the cut-off relay and for the stepping magnet, the latter circuit which prevents the operation of the cut-off relay, being rendered ineffective as soon as the switch moves into a selecting position so that the continued stepping of the switch depends upon the potential upon the test contacts engaged by the test wiper. Outgoing call. When a calling subscriber removes his receiver, his line relay 1. Fig. 1, immediately grounds the incoming test lead 18 and completes a circuit over the test wiper 6 and its normal contact 10 for the stepping magnet 3. At the first step, this original energizing circuit is disconnected, but magnet 3 remains energized over the test wiper 6 until an idle trunk is found when the cut-off relay 2, which has hitherto been short-circuited, energizes in series with magnet 3, which does not operate further, and cuts off relay 1. At the end of the connection, the removal of ground from the test conductor by the switch ahead, de-energizes relay 2 which completes a restoring circuit for magnet 3 over contacts 16, 19 and off-normal contacts 9. Incoming call. If the line, Fig. 1, is idle when seized by a final selector, Fig. 2, the release of the units series relay 55 completes a circuit for the switching relay 53 in series with cut-off relay 2 and magnet 3, and the connection proceeds in the usual manner. If, however, the line-switch, Fig. 1, is being restored to normal, the busy relay 52 does not energize since there is no ground on conductor 18, and relays 2. 53 are prevented from energizing owing to a short-circuit over contacts 16, 19, 9. Upon the complete restoration to normal, relays 2, 53 energize as before and the connection is completed. Dealing with faults. If, on extending an outgoing call, the line-switch seizes a faulty trunk so that no holding ground is sent back over the third conductor, the relapse of the line relay 1 causes the release of relay 2 and establishes the stepping circuit 3, 16, 19, 9. Relay 1 again energizes, but is slow to operate so that the switch has time to advance one step to free itself from the faulty trunk before its stepping circuit is broken at contact 16.
Patent GB-1063054-A (GB)
Title: Separating succinic acid,glutaric acid and adipic acid from mixtures containing them
Inventor: WEGERICH ANTON
IPC: C07C51/44
Filed: 1964-06-25
Abstract: <PICT:1063054/C2/1> A mixture of succinic, glutaric and adipic acids, such as obtained by the oxidation of cyclohexanol, cyclohexanone or cyclohexane is separated by fractional distillation under subatmospheric pressure in the presence of steam. The mixture is introduced from tank 1 into evaporator 2, which is heated to about 200 DEG  C. and is maintained at an absolute pressure of 40 to 100 mm. Hg.  The mixture then flows down column 4 into a still 5 at 195 DEG  to 220 DEG  C. into which superheated steam is injected through line 7.  The steam laden with acid vapours is conducted from the head of the column into the evaporator, the vapours then passing through line 8 into a condenser 9 and being sprayed therein with an aqueous solution from a receiver 10.  Crystals of succinic acid suspended in an aqueous solution are obtained by cooling in a vessel 14, are separated out in a centrifuge 15.  The mother liquid is evaporated and the residue is returned to the crude product.  The product received in vessel 6 from the still is substantially glutaric and adipic acids.  Water is added to convert anhydrides into acids before preheating in 17 and passing the mixture into a column 18. The still 19 of the column is heated to 200 DEG  C., a vacuum of 40-50 mm. Hg is maintained at the top of the column, and superheated steam is passed through line 20 into the still.  The vapours leaving the head of the column are cooled in a condenser 21 and liquid glutaric acid so formed flows into a receiver 22 while steam with a small amount of succinic acid flows into a condenser 23.  A mixture of adipic acid with a small amount of glutaric acid is withdrawn at 27 from the still from which adipic acid may be recovered by crystallization. The columns are provided with packings, baffles, spirals or bubble trays.
Patent GB-1416584-A (GB)
Title: Adjacent catv channel jamming
IPC: H04N7/16
Filed: 1973-06-04
Abstract: 1416584 Television distribution systems HUGHES AIRCRAFT CO 4 June 1973 [26 June 1972] 26493/73 Heading H4R A subscriber station for a cable television system includes a converter 23 for frequencychanging the selected programme signals to a predetermined channel and means for adding signals to the converter output to jam adjacent channels. This prevents a subscriber selecting a free channel and " fine tuning " to the subscription channel or to a restricted category channel. As shown a carrier f 0  centred on the predetermined channel is combined with a sweep frequency f w  in a double balanced mixer 29 and added 25 to the converter output f c  to interfere with the adjacent channels. In modifications, the converter output is injected with signals from two oscillators providing sweep frequencies covering adjacent channels, non-linear fixed frequency outputs containing spurious harmonies and centred on the adjacent channels or single frequencies, if the converter output is phaselocked so its centre frequency is constant f 0 , to overload the TV receiver front-end.
Patent GB-263575-A (GB)
Title: Removable heel pieces for boots and shoes
IPC: A43B21/47
Filed: 1925-10-23
Abstract: 263,575. Hobson, J. R. Oct. 23, 1925. No Patent granted (Sealing fee not paid). Protectors, securing.-A top heel piece a, Fig. 3, is provided with a groove b shaped, as shown, to accommodate a wire c, Fig. 5, with upturned ends d, Figs. 5 and 6, perforated to receive securing rivets. The spring of the wire firmly holds the heel piece in place.
Patent GB-756285-A (GB)
Title: Improvements in or relating to delay circuits
Inventor: CLAPPER GENUNG L
IPC: H03K5/00
Filed: 1954-09-14
Abstract: 756,285. Pulse delaying circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. Sept. 14, 1954, No. 26657/54. Class 40 (6). [Also in Group XIX] A delay circuit, for use in a digital computer (see Group XIX), receives input data indicative pulses at a terminal B, Fig. 1, and synchronizing pulses at a terminal A, the pulse train being as shown in Fig. 2, and as a result produces a pulse train at E corresponding to the input train at B but delayed by one unit of time, which is amplified by a double triode 35 to give an output at H equivalent to the input train at B delayed by one unit of time, there being feed-back from point H to point E via a resistor 48 for pulse-shaping purposes. The leading negative edge of a data indicative pulse applied to terminal B tends to cause a negative pulse at point C' but this is prevented by a rectifier 23, and the leading edge therefore has a negligible effect. The positive-going trailing edge however does have some effect and causes points C and D to rise in potential. The potential of point E is unaffected though since the left-hand side of tube 35 is normally conducting hard and the potential of point E is therefore clipped at earth level by the gridcathode diode action. Thus the result of the trailing edge of the input pulse has been to charge a condenser 33 which immediately begins to discharge slowly through a high resistance 32. On the occurrence of the "sync." " pulse in time interval T 2 , point A is brought suddenly to earth potential, thus unblocking a rectifier 27 and causing the condenser 33 to be discharged suddenly creating a negative pulse at point E which is amplified to give the required output. The circuit can accommodate a small phase difference between the input pulse and the " sync. " pulse, and produces output pulses which are always in synchronism with the " sync. " pulses. In a modification shown in Fig. 9, negative synchronizing pulses J, Fig. 10, are applied at input J, signal pulses at K and positive synchronizing pulses at S respectively. It is shown that a positive signal pulse at point N appears at point P delayed by an increment of time defined by the interval between two successive synchronizing pulses.
Patent GB-757777-A (GB)
Title: Improvements in the removal of excess mercury from an amalgam
IPC: C22C3/00
Filed: 1954-09-15
Abstract: 757,777. Filters. KOHLER, F. Sept. 15, 1954 [Sept. 23, 1953], No. 26751/54. Class 46. Excess mercury is removed from an amalgam by passing the mercury-amalgam mixture over an upwardly sloping vibrating channel 2 having at least part of its base formed as a sieve. The mercury filtrate passes down a channel 8 to an outlet 12 whereas the amalgam is discharged from the upper end of the channel to a worm conveyer 13. Vibration of the channel 2 is effected by an electromagnetic 5, an armature 6 and leaf springs 3, 3<SP>1</SP>. The screen portion of the base is of nickel sulphated on a grating. A gas-tight casing 9 having inlet and outlet 11, 10 allows of the filtration being conducted in an inert atmosphere.
Patent GB-362906-A (GB)
Title: Manufacture of derivatives of naphthalene-1:4:5:8-tetracarboxylic acid
Filed: 1930-09-08
Abstract: Di-imides of 1 : 4 : 5 : 8-naphthalene tetracarboxylic acid are obtained by causing a metal cyanide to react with a naphthalene-1 : 4- or 1 : 5-dicarboxylic acid substituted in the free a - positions by halogen, or with a reactive derivative such as an amide, nitrile, salt or ester thereof.  According to examples, (1) 5 : 8-dichloronaphthalene-1 : 4-dicarboxylic acid, obtainable by chlorinating, followed by hydrolysing, 1 : 4-dicyanonaphthalene, (2) 4 : 8 - dichloronaphthalene - 1 : 5 - dicarboxylic acid, obtainable by causing chloracetylchloride to react with 1 : 5-dichloronaphthalene and oxidizing the product, (3) 5 : 8-dibromonaphthalene-1 : 4-dicarboxylic acid (obtainable by brominating the dicarboxylic acid), (4) 5 : 8 - dichloro - 1 : 4 - di - cyanonaphthalene (obtainable by chlorinating the dicyanide), (5) the corresponding acid diamide or diethyl ester, are treated with alkali and cuprous cyanides to give the di-imide and (6) the parent material of example (3) gives the same product on treatment with cuprous cyanide in benzyl cyanide.  The free naphthalene tetracarboxylic acid is obtained also in some cases. The intermediate dicyano-dicarboxylic acids and diamides need not be isolated.
Patent GB-1435455-A (GB)
Title: Apparatus for steering a boat
IPC: G05D1/02
Filed: 1974-06-17
Abstract: 1435455 Steering boats OXY METAL INDUSTRIES CORP 17 June 1974 26814/74 Heading B7V [Also in Division G3] A boat's rudder 11 is moved by an electrically operated trim tab 12. The boat is kept on a fixed heading relative to the wind, or a fixed compass heading, by comparing a signal from a potentiometer connected to a wind vane 4 or to a compass, with a manually adjustable control signal. An error signal generated by this comparision is compared with a signal from a potentiometer connected to the rudder, and a second error signal is used to drive the trim tab motor. The second error signal is recorded on a voltmeter and in operation the manual control is adjusted until the boat has the desired heading and the second error signal is zero, and then the control is left. The electric motor 21 is located in the tab 12 and drives a pinion 24 which meshes with a rack 25 on the rudder. Alternatively the motor may be mounted in the rudder 11. A clutch 23 may be disengaged, e.g. if the rudder is to be steered manually.
Patent GB-651723-A (GB)
Title: An automatic regulator for an electrical generator
IPC: H02P9/24
Filed: 1947-10-06
Abstract: 651,723. Automatic voltage control systems; generating arrangements. BENDIX AVIATION CORPORATION. Oct. 6, 1947, No. 26836. Convention date, Oct. 8, 1946. [Class 38 (iv)] An automatic voltage control for an alternator, in which the exciter field is controlled by a Tirrill type regulator, includes an auxiliary regulator contact which connects the exciter field across a correctly polarized voltage source should the field polarity become reversed due to a short circuit on the alternator. The field 17 of the 3-phase alternator 21 is supplied by the exciter 2, the field 8 of which is controlled by the resistor 15 and vibratory contacts 11, 12 of a regulator having a voltage winding 26 energized by potential transformers 29 and a rectifier 32 ; an opposing current compounding winding 28 energized by current transformers 36 and a rectifier 39 ; and a winding 27 connected across the field 8 and normally assisting the voltage winding. Should the polarity of the exciter become reversed, the limiting winding 27 will assist the current winding 28, thereby closing contacts 11, 13 connecting the field 8 across the potential transformers 29 and rectifier 32 to restore normal polarity.
Patent GB-1389463-A (GB)
Title: Gas meters for use with calorimeters
IPC: G01F1/00
Filed: 1972-06-08
Abstract: 1389463 Metering gas to mixing apparatus BRITISH GAS CORP 5 Sept 1973 [8 June 1972] 26862/72 Heading B1C [Also in Division G1] In an apparatus for providing a measured supply of a primary gas e.g. for supplying measured quantities of fuel gas to a calorimeter, the gas is supplied alternately through valves 1, 1' to tubes 19, 19' each tube being of accurately determined or determinable internal volume, and a secondary gas is supplied subsequently and alternately to the previously filled tube to displace the primary gas to the point of use, valve control means being provided to ensure that at all times one tube 19 or 19' is being filled with primary gas while the other 19' or 19 is being discharged so that a practically continuous supply of successive known volumes of gas may be provided. When a tube is being filled with primary gas the outlet thereof is connected via the valve to atmosphere, optionally through vacuum means. Shut-off valves 21, 21' in the primary gas supply may be closed under the control of a timer 28 before the completion of the respective tube filling part of the cycle to allow the gas in the tube to reach pressure equilibrium with the atmosphere. When the apparatus is used for supplying fuel gas to a calorimeter the secondary gas used is air the presence of part of which with the metered volume of fuel gas is acceptable since air is required for combustion in the calorimeter. Additional air or oxygen for combustion is injected into the line 23 and mixing of the air/fuel gas is effected in a mixing device 31.
Patent GB-1415574-A (GB)
Title: Animal exerciser and activity device
IPC: A01K15/02
Filed: 1973-06-05
Abstract: 1415574 Animal exerciser METAFRAME CORP 5 June 1973 26904/73 Heading AIM A device for exercising animals comprises a revolvable drum 22 having a wall 36 in combination with a stationary housing 24, which is mounted internally of drum 22. The housing 24 includes a wall 44 having apertures 46 affording access for an animal to platforms 50, 52. The device is supported by a bracket 26 connected to a shaft 30 about which drum 22 rotates as an animal exercises upon internal cylindrical surface 38 in exercise area 60. The device can be removably supported on top of a cage wall 62 by a horizontal flange 28 of the bracket; alternatively the device can be inverted and the flange 28 rest on the cage floor in which case the bracket may be formed with steps to facilitate climbing. The stationary housing may be of generally elliptical shape.
Patent GB-656810-A (GB)
Title: Improvements in or relating to electrical cable or wire connectors
IPC: H01R43/058
Filed: 1948-10-18
Abstract: 656,810. Cable and wire, terminals. AIRCRAFT-MARINE PRODUCTS, Inc. Oct. 18, 1948, No. 27009. Convention date, Oct. 16, 1947. [Class 38 (i)] A cable connector 8 has a malleable ferrous metal body which is coated with a softer corrosion - resistant metal, which may be an amalgam, between its solidus and liquidus states. The steel has preferably a low carbon content and copper may be used to coat the steel body, the amalgam being applied directly to the copper, as described in Specification 610,328. Tin can be added to a mercury layer on the copper coating to form an amalgam therewith but in insufficient quantity to absorb all the mercury so that some mercury is free to flow into any crevices left when the connector is crimped on to a cable 18. Preferably the connector is of the form described in Specification 650,096 and has ears 12, 14, 16 attached to a ferrule portion 10 of the connector. The ears 12, 16 are turned over to pierce the cable insulation 22 and engage the cable conductor 20, the ear 14 being constrained to encircle the cable insulation by shaped dies of the kind described in Specification 650,096, Figs. 4 to 7 (not shown). The connectors can be provided in the form of strips of shaped blanks, as described in Specifications 601,068, [Group XXII], and 656,029.
Patent GB-684524-A (GB)
Title: Improvements in or connected with tubular heat exchangers
Inventor: PARRIS CYRIL WRIGHT
IPC: F22D1/02
Filed: 1950-11-06
Abstract: 684,524. Tubular heat-exchangers. GREEN & SON, Ltd., E. Jan. 8, 1951 [Nov. 6, 1950], No. 27013/50. Class 64 (iii) A tubular heat exchanger comprises tubes 3 provided externally with extended surface members (e.g. gilled sleeves 2), and end tube plates comprising a plurality of abutting fabricated or cast metal plates 1, each plate having holes disposed one above the other to receive the ends of the tubes and being slightly wider than the extended surface members and being provided with flanges 1a, 1b by which contiguous plates may be fastened together, the flanges acting also as stiffening ribs. Preferably contiguous flanges are secured together by bolts and nuts, and the tubes 3 are secured at one end to an end plate and are slidable in a gas-tight manner at the other end to another end plate. In the form shown the fixed end of each tube is secured against a plate 1 by a split collar 8, the other end of each tube being slidable in a stuffing box secured to another plate 1 and containing a packing 12. Intermediate support plates may be provided on the tubes. The tube rows may be arranged in a vertical or inclined planes. Adjacent tubes are interconnected by return bends welded thereto. Specifications 475,526, 475,540, 583,140, and 614,716 are referred to.
Patent GB-369873-A (GB)
Title: Improvements relating to cooling and lubricating systems for internal combustion engines
IPC: F01P5/12
Filed: 1931-09-29
Abstract: 369,873. Force-feed lubricating. SULZER FRERES SOC. ANON., Winterthur, Switzerland. Sept. 29, 1931, No. 27064. Convention date, Nov. 17, 1930. [Class 12 (iii).] On a motor-vehicle the lubricant circulating pump 5<*> is driven by an electric motor 4, the current for which is switched on and off by a switch 9, connected to the automatic charging switch 8 of the vehicle battery 6. The pump is thus put into action when an auxiliary dynamo 3, driven by the engine 1, generates sufficient current or voltage to close the joint switch 8, 9.
Patent GB-423847-A (GB)
Title: Improvements in markers for card and other games
IPC: A63F1/18
Filed: 1934-09-20
Abstract: 423,847. Scoring and marking apparatus for games. HANNEMANN, L., 26, Schlossfreiheit, Schwedt-on-Oder, Germany. Sept. 20, 1934, No. 27101. [Class 132 (ii)] A marker for card and other games comprises a casing 2 having a series of four or more number wheels 7-10 adapted to display numerals at windows 17 arranged in a straight line, two or more of the wheels overlapping each other and having their axes side by side in a straight line, and the wheel at each end of the series being arranged without overlap, but with its axis offset with respect to the alignment of the overlapping wheels. The wheels may be rotated by sliding studs 16 carrying pawls 31 which engage ratchet wheels 30 having spring detents 32. Additional number wheels 3-6 display numerals at windows 21, 22, and pivoted sectors 11, 12, 13 are rocked to display signs at windows 18, 19, 20.