baber/WOPTO huggingface dataset:
Patent GB-1189314-A (GB)
Title: Improvements in or relating to Electrical apparatus for Testing Transmission Systems
Inventor: REYNOLDS JOHN SPACKMAN
IPC: H04L1/24
Filed: 1966-09-02
Abstract: 1,189,314. Digital transmission systems. GENERAL ELECTRIC & ENGLISH ELECTRIC COMPANIES Ltd. 4 Sept., 1967 [2 Sept. 1966], No. 39455/66. Heading H4P. In a system for testing a digital transmission system, a random or quasi-random series of bits is passed through a feedback shift register encoder which develops for transmission a bit series in which each bit is correlated with a plurality of other bits in the series. At the receiver the signal passes to a similar encoder which develops, in the event of no transmission error, a signal similar to that at the input of the transmitter encoder. This signal is passed to a circuit which detects and records any errors. In one embodiment the random bits pass to a bi-stable, reset at half the transmitted bit rate b. The resulting bits at rate ¢b pass to the encoder, the register of which is stepped at a rate b. The receiver register, also stepped at rate b, should give a signal in which the bits in successive pairs of bits are alike, i.e. a signal equivalent to the original half bit-rate signal. The bits of each pair are compared. In the event of transmission error several bit pairs will have unlike bits, i.e. will be in error, because of the correlation between the transmitted bits. In a second embodiment the bi-stable is reset at bit rate and the output inhibited at one-third bit-rate before being fed to the encoder. At the receiver the encoder output is gated at one-third bit rate, the gate pulsing in response to transmission errors.
Patent GB-344116-A (GB)
Title: Improvements in processes for the preparation of aliphatic anhydrides and chlorides of aliphatic acids from aliphatic salts
IPC: C07C51/56
Filed: 1929-12-27
Abstract: Chlorides and anhydrides of aliphatic acids are produced by reacting with sulphuryl chloride (or sulphur dioxide and chloride) on dry alkaline-earth salts of the acids in presence of a solid inert diluent such as sand, with or without a solvent, and at a low temperature.  The solid diluent may be a substance capable of neutralizing the inorganic acids liberated, such as a phosphate silicate or a single or double carbonate of calcium, magnesium, barium or the like.  If the alkaline-earth salt of the organic acid is moist, calcium oxide may be added, and the sulphuryl chloride may contain free chlorine or thionyl chloride.  In an example, sand and calcium carbonate are mixed with the calcium salt of the aliphatic acid and the mixture treated with sulphuryl chloride or its constituents in a closed vessel provided with a stirrer and cooling-jacket, the chloride or anhydride being then distilled off at ordinary or reduced pressure respectively; in this process a small quantity of calcium oxide and an acidyl chloride or anhydride produced in a preceding operation may be added.  The process may be applied to the production of separate aliphatic acids from mixtures of their calcium salts, as the mixed anhydrides can be separated by fractional distillation more easily than can the acids, the anhydrides being then hydrolyzed to produce the acids.
Patent GB-803417-A (GB)
Title: Improvements relating to machine tools having rotary work spindles
IPC: B23F23/06
Filed: 1956-12-28
Abstract: 803,417. Machine-tool details. GLEASON WORKS. Dec. 28, 1956 [Dec. 30, 1955], No. 39651/57. Divided out of 803,416. Class 83 (3). The rotatable work-spindle 10 in a machinetool, particularly a machine for cutting gears G on an indexible spindle, may be clamped in its housing 11, 23, 24, by an annulus 16 on the spindle or the housing, engaging a groove 15 in the other part, the flexible side-walls 21, 22 of the annulus being deflected against the walls of the groove by pressure-fluid in the annulus and having overlapping flanges 27, 28. The spindle is clamped between operations of an indexing- mechanism (not shown). Each wall 21, 22 of the annulus is formed integrally with a steelsection 23, 24, respectively, of the housing, and is heat-treated to provide the desired resilience for engaging the walls of the groove 15 formed between sections of the spindle 10, which is mounted in bearings 12 in the housing. Pressure-fluid is fed to the annulus through a passage 30, and seals 29, 31, 32 are provided. A labyrinth 33 with a vent 34 seals against the ingress of foreign matter.
Patent GB-906665-A (GB)
Title: Improvements in or relating to electrical connectors
IPC: H01R13/28
Filed: 1959-11-24
Abstract: 906,665. Cable and wire couplings; two-part couplings; terminal boards. WESTERN ELECTRIC CO. Inc. Nov. 24, 1959 [Dec. 5, 1958], No. 39789/59. Class 38 (1). A connector for insulated wires comprises an elongated body 10, Fig. 1, of arcuate cross-section and slit at one or both ends to form tongues 15, the opposed edges of which converge towards each other and penetrate the insulation of a wire forced into the slit. The tongues may be reinforced by rings which embrace them and limit the extent to which the wires can be inserted (Fig. 2, not shown). Fig. 3 shows a connector which is slit at one end only, the opposite end being formed as a flat terminal tang 21 and the intermediate portion 28 being of circular cross-section for mounting in an aperture in a panel. A reinforcing ring may be provided at the slit end (Fig. 4, not shown). Fig. 5 shows another embodiment wherein the connector has a plurality of slits 33, 34 at one end and a flat terminal tang 31 at the other end. Such a connector may be modified by the provision of a mounting portion similar to that provided on the connectors of Fig. 3 and the reinforcing ring may be omitted. Alternatively (Fig. 8, not shown), a circular mounting portion which can be pushed into an aperture in a panel may be provided at the lower end of the connector. The connectors may be coated with insulation; such as P.V.C. Fig. 16 shows how two connectors 10 may be coupled together in plug and socket fashion to connect wires 59, 60. Applications of the connectors to the joining and tapping of multi-conductor cables are described.
Patent GB-897500-A (GB)
Title: Pressure-sensitive valves
Inventor: SCHLACHTER HANS
IPC: G05D16/10
Filed: 1959-11-24
Abstract: 897,500. Fluid-pressure servomotor-control systems; valves. SULZER BROS. (LONDON) Ltd. Nov. 16, 1960 [Nov. 24, 1959], No. 39886/59. Class 135. In a pressure-sensitive valve, e.g. controlling hydraulically or pneumatically a piston-actuated by-pass valve 10 in response to pressure in a circuit 11 acting via restriction 48 in a space 21 between the end of a sleeve 20 sliding in cylinder 12 and on a shank 19 and the lower of two pistons 17, 18 carried by the shank, the circuit-pressure may rise up to e.g. 110 p.s.i. without the piston or sleeve moving against respective adjustable springs 24, 23, as shown in Fig. 1. As the pressure rises to 180 p.s.i., sleeve 20 is lifted against spring 23 to abut upper piston 17, Fig. 2, and open shank passage 27 to circuit pressure which then acts in space 26 above piston 17. At 180 p.s.i. pressure at 26, the piston is forced down against heavier spring 24 to uncover cylinder port 42 whereby pressure beneath sleeve 20 is exhausted via 46 and spring 23 makes the sleeve abut the lower piston, as in Fig. 3. A transient pressure of 180 p.s.i. in space 26 will not move the piston downwards from the Fig. 2 position due to leakage via piston restriction 34 leading via 32, 41, 37, 36, 38 to exhaust 46. Piston 17, Fig. 3, now passes circuit pressure via 30, 28, 29 to close valve 10, the pressure being regulated to 70 p.s.i. in 26. Should pressure at 26 fall below 70 p.s.i., the piston 18 rises and restricts exhaust at 42 to rebuild the pressure via 30, and vice versa. When the circuit pressure falls to 30 p.s.i., piston 17 rises to cut off pressure to valve 10 and exhaust its actuating pressure via 33, 32, 41, 39, 36, 40 and 46, and pressure at 26 exhausts through 34 via the same path, whereby valve 10 re-opens. Passages 30, 35, 41, 46 may be formed by a sleeve covering grooves on the external surface of cylinder 12.
Patent GB-1471014-A (GB)
Title: Vegetable proteins
IPC: A23K1/14
Filed: 1974-09-13
Abstract: 1471014 Vegetable protein isolates INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE 13 Sept 1974 [14 Sept 1973] 40020/74 Heading C3H Purified and concentrated vegetable protein isolates are obtained from ground seeds, flour or meal of colza, horse beans and sunflower by dissolution in alkali and subjecting the alkaline protein solution to at least one ultrafiltration by means of a semipermeable membrane of pore diameter 0À1-30 mÁ at 2-30 C. to form a retentate containing 3-12 wt. per cent of nitrogenous matter (N Î 6À25) and then adding to the retentate a volume of wash liquid while continuing ultrafiltration at 2-30 C. so that when the volume of permeate is equal to the added volume the concentration of nitrogenous matter (N x 6À25) is 70-85 wt. per cent of the dry matter of the retentate, adjusting the temperature of the retentate to 20-60 C. and continuing ultrafiltration and recovering the concentrated and purified retentate.
Patent GB-1444658-A (GB)
Title: Pump
IPC: D06F75/22
Filed: 1974-05-24
Abstract: 1444658 Reciprocating pumps SCM CORP 24 May 1974 [25 May 1973] 40179/75 Divided out of 1444656 Heading F1A [Also in Division D1A] The description is the same as that of the parent Specification 1444656 but the claims are directed to the pump which serves both as the bi-stable valve and manual piston pump. These share a common housing and permit selection of a stable state of the valve - viz: whether water drawn from the reservoir by the pump is distributed to a spray nozzle or into a high velocity steam - generating chamber.
Patent GB-1397291-A (GB)
Title: Water heater
IPC: F24H1/22
Filed: 1972-08-31
Abstract: 1397291 Hot water dispenser A RONCHESE 31 Aug 1972 40325/72 Heading B8N [Also in Division F4] In apparatus in which a predetermined quantity of water can be boiled and automatically dispensed, water is supplied from a reservoir 27 to a closed container 12 divided into two compartments 13, 14 connected together by a passage extending from the bottom of compartment 13 to the top of compartment 14, the water is heated to boiling point by an electric heating element 40 in compartment 13 and thereby forced into compartment 14 via the passageway from which it is dispensed by an outlet 19. The container 12 is divided into the compartments 13, 14 by a partition 16 formed integrally with the container and a partition 15 formed integrally with a closure member 42 for the container 12. The passage is defined between the partitions. Part of the passage is blocked off so that a tubular portion 17 is formed which opens into compartment 13. A pin 29 in the tubular portion opens a non-return valve 28 of the reservoir 27 when it is in place to allow water to fill compartment 13 until it reaches the level of the lower end of a clip tube 24 of the reservoir. The compartment 14 has vent tubes, e.g. 22 which together with a rod 45 extending from closure member 42 support a siphon 20 for outlet 19. A float 3, normally restrained in its lower position in compartment 13 by a latch mechanism 38 controls actuation of a microswitch 34 connected to the heating element 40. When it is desired to dispense boiling water for use in the preparation of beverages, a pushbutton 39 is depressed to release the latch mechanism 38 so that the float 31 can rise and allow more water to enter the compartment 13 and permit the microswitch 34 to close. A collar 32 on the hollow stem 30 of float 31 normally holds a microswitch operating lever 33 depressed, but when the latch mechanism 38 is released the float 31 rises allowing the lever 33 to be raised to close the microswitch 34 and also to engage a notch 49 in the latch mechanism 38 and thus preventing the latch mechanism returning under its own bias to its initial position. The upward movement of the float 31 is limited by an adjustable stop 35 which co-operates with collar 32. The adjustable stop 35 thus determines the amount the float 31 is submerged and hence the volume of liquid heated and dispensed. When water boils, the pressure build up above the water surface in compartment 13 forces boiling water up the passage into compartment 14. The pressure also prevents cold water entering from the reservoir 27. When the water reaches the appropriate level in compartment 14 it flows out of outlet 19 to a container placed on a drip tray. Steam from vents 22 emerges from around outlet 19. The height of the apparatus is manually adjustable. A thermal cut-out may be provided.
Patent GB-1055544-A (GB)
Title: Vehicle seat assemblies
IPC: B60N2/52
Filed: 1965-09-23
Abstract: 1,055,544. Resilient seat mountings GENERAL MOTORS CORPORATION. Sept. 23, 1965 [Oct. 8, 1964], No. 40532/65. Heading A4U. [Also in Division F2] In a vehicle seat, which is resiliently mounted for vertical motion controlled by a hydraulic shock absorber, the damping effect of the shock absorber may not only be reduced during the upward velocity of the seat, but can also be made to respond to upward decelerations of the seat. The movable seat assembly carries torsionally sprung arms 60 which are pivoted to a stationary base pedestal 42, into which a corresponding member 36 on the seat telescopes. The cylinder 82 of the shock absorber is mounted internally at the base of the pedestal 42 and the piston rod 80 is secured to the telescoping member 36. When piston 126 moves upwardly, apertured valve disc 134 is lifted, by fluid flow, from its seating and allows the fluid to pass more freely through passage 130 between chambers 132 and 116. Valves 118 and 120 supply reserve fluid from chamber 114, as required. Weights 98 and 100 (Figs. 3 and 4, not shown) are fixed to a pivoted lever 102 which normally depresses push rod 90 to restrict the fluid flow through disc 134. The weights are free to give the same response to vertical accelerations as the occupant of the seat, so that, on an upward deceleration of the latter, they are lifted to allow push-rod 90 to rise under the action of spring 142. Plunger 140 is accordingly raised, to allow a greater flow of fluid through piston 126, thus preventing the occupant from losing contact with the seating surface.
Patent GB-886600-A (GB)
Title: Means for securing curved printing plates to cylinders
Inventor: MORRISON HERBERT ERNEST
IPC: B41F27/12
Filed: 1959-11-30
Abstract: 886,600. Printing surfaces. ADVANCE FLEXOGRAPHIC PLATES Ltd. Nov. 30, 1959, No. 40581/59. Class 100(2) [Also in Group XXV] Means for securing a curved metal-backed rubber printing plate, particularly a plate wherein the metal is curled or curved after the rubber has been vulcanized thereto to fit a specific cylinder size and which can be sprung open to fit larger cylinders, comprises a strip metal band made sinuous or corrugated between its ends (as at 1), and provided at one end (2) with a plain part formed with a line of ratchet teeth (3), and at its other end (4) with a plain part formed with an elongated slot (5) with a tapered outer edge (6) engageable under a tooth with the band bent into closed circular form, the closed outer end of the slot (7) engaging between two adjacent teeth. Each end portion is provided with a hole, 2a, 4a to receive the claw-like jaws of a tightening tool.
Patent GB-1513408-A (GB)
Title: Arrangement for stabilising or igniting a welding arc
IPC: B23K9/067
Filed: 1975-10-07
Abstract: 1513408 Arc welding systems MESSER GRIESHEIM GmbH 7 Oct 1975 [18 Oct 1974] 41004/75 Heading H2H A circuit for supplying ignition and stabilizing pulses to arc welding apparatus comprises a capacitor 20 provided with a charging circuit 15 and a discharge circuit including first and second switches 23, 26, and a pulse transformer 25. The welding current is supplied to an electrode 12 and a workpiece 11 by an a.c. source 10. A circuit 14a including four layer diodes 43, 44 provides trigger pulses to the switches 23, 26 during alternate half cycles of the supply. The switches 23, 26 may be thyristors, transistors or spark gaps. When the switch 23 is triggered the capacitor 20 discharges through the primary winding 24 of the pulse transformer to supply a stabilizing pulse to the welding electrode at the beginning of each positive half cycle. When the capacitor has discharged, the transformer acts as a generator, however a pulse is not fed to the welding electrode since the winding 24 is short circuited by the still conductive switch 23 and a rectifier 35. Similarly, when the switch 26 is triggered in each negative half cycle, the discharge of the capacitor 20 supplies another stabilizing pulse to the welding electrode at the beginning of each negative half cycle. The short circuiting of the primary winding 27 by the switch 26 and the rectifier 35 then prevents a further pulse due to the energy accumulated in the pulse transformer from being supplied to the welding electrode.
Patent GB-1086495-A (GB)
Title: Process for the production of d-arylazocyanoacetamides
IPC: C09B43/00
Filed: 1964-10-08
Abstract: a -Arylazoacetamides of the general formula (R)nC6H5- n-N = N-CH(CN)-CONH2, wherein R is one or more of the substituents carboxyl, halogen, C1- 6 alkyl, hydroxyl, C1- 6 alkoxy, nitro and SO3H, excluding the cases where R is carboxyl alone, SO3H above or a combination of either of these two groups with the other or with halogen whether or not said combination also includes a C1- 6 alkyl radical and n is 0-3, are prepared by reacting cyanoacetamide with a diazonium salt of an arylamine of the general formula (R)nC6H5- n-NH2 preferably at a pH of 4.0-10.  The diazonium salt is produced by a coupling reaction carried out in the presence of a reaction promoting agent, preferably while maintaining the pH between 4 and 10 by the use of at least one buffer.  Examples show the preparation of a -phenylazocyanoacetamide by reacting phenyl diazonium salt with cyanoacetamide; a  - (p - methylphenylazo) - cyanoacetamide by reacting p-methylphenyl diazonium salt with cyanoacetamide; a -(p-chlorophenylazo) - cyanoacetamide by reacting p-chlorophenyl diazonium salt with cyanoacetamide; a  - (O - nitrophenylazo) - cyanoacetamide by reacting O-nitrophenyl diazonium salt with cyanoacetamide all of which are coloured.ALSO:a -Arylazoacetamides of the general formula (R)nC6H5- n-N = N-CH(CN)-CONH2 wherein R is one or more of the substituents carboxyl, halogen, C1- 6 alkyl, hydroxyl, C1- 6 alkoxy, nitro and SO3H excluding the cases where R is carboxyl alone, SO3H above or a combination of either of these two groups with the other or with halogen whether or not said combination also includes a C1- 6 alkyl radical and n is 0-3 are prepared by reacting cyanoacetamide with a diazonium salt of an arylamine of the general formula (R)nC6H5- n-NH2 preferably at a pH of 4.0-10.  The diazonium salt is produced by a coupling reaction carried out in the presence of a reaction promoting agent preferably while maintaining the pH between 4 and 10 by the use of at least one buffer.  Examples show the preparation of a -phenylazocyano-acetamide by reacting phenyl diazonium salt with cyanoacetamide; a -(p-methylphenylazo)-cyanoacetamide by reacting p-methylphenyl diazonium salt with cyanoacetamide; a -(p-chlorophenylazo) -cyanoacetamide by reacting p-chlorophenyl diazonium salt with cyanoacetamide; a -(O-nitrophenylazo)-cyanoacetamide by reacting O-nitrophenyl diazonium salt with cyanoacetamide all of which are coloured.
Patent GB-1145175-A (GB)
Title: Container lifting frame with means to shift same laterally on a fork lift truck
IPC: B66F9/14
Filed: 1967-09-08
Abstract: 1,145,175. Fork lift trucks. STRICK CORP. 8 Sept., 1967 [23 Dec., 1966], No. 41154/67. Heading B8H. A container engaging device as described in Specification 1,144,987 is mounted on the lift carriage 14 of a fork lift truck by means of a pair of rearwardly extending hook shaped frameworks 92 and has bearing members 120, 122, 124 interposed therebetween to enable an hydraulic or pneumatic ram 186 to slide said container engaging device transverse to the carriage and the mast. The bearing members are respectively mounted on the lower and forward facing surfaces 98, 100 of the hook frameworks 92 and on the rearward facing surface 88 of a vertical girder 91 forming part of the framework 28 of the article engaging surface. Each bearing member comprises a pair of plates 130, 132 spaced apart by a web 134 and rods 138 and an endless roller chain 140 circulating about a boss 142 between the plates 130, 132. The web 134 mounts a projection 136 to engage a recess 128 formed in the framework 92 or the girder 91 to provide a form of universal coupling. The bearing members have chains 144 by means of which they are secured to the framework 92 or girder 91 between guideways 148 to prevent excess movement thereof away from their proposed path. In an alternative embodiment, Fig. 6 (not shown), the bearing member (120) has a fabricated female member (166) having a collar (172) to retain, by means of a shoulder (164), a projection (162) extending from the support members. The modification requires no chains (144). In a further embodiment (Fig. 7, not shown) the roller chain is replaced by a block of antifriction material 176 e.g. p.t.f.e. or nylon.
Patent GB-1327322-A (GB)
Title: Antiskid control systems for vehicles
IPC: B60T8/72
Filed: 1971-09-03
Abstract: 1327322 Anti-skid control systems NIPPONDENSO CO Ltd and TOYOTA JIDOSHA KOGYO K K 3 Sept 1971 [11 Sept 1970] 41280/71 Headings G1N The angular speed of a vehicle wheel is measured by a tachogenerator 2 (Fig. 4), the speed signal being produced across a resistor 9 and also across a parallel network comprising a capacitor 4 with an adjustable discharge path via transistor 26, and a diode 6 in series with resistors 7, 8. When the speed is reduced by application of a brake, the voltage across resistor 9 follows the fall in speed, but the voltage across capacitor 4 falls in accordance with its pre-set discharge time constant, giving two pre-set deceleration characteristics at points A and B. The voltage α across resistor 9 is compared at 11 with the voltage # 1  at point A, and at 12 with the lower voltage # 2  at point B. When α falls below B 2 , a logic circuit 19 energizes a solenoid 25 to reduce the braking pressure and allow α to rise. When α exceeds B 1  the solenoid 25 is de-energized and braking pressure is re-applied. The system prevents locking of the test wheel due to skid conditions, the characteristics of the type and road being fed into a computer 27 which establishes the discharge current through transistor 26.
Patent GB-896788-A (GB)
Title: Apparatus for providing a representation of the difference in number of positive andnegative input pulses
IPC: G05B19/33
Filed: 1958-12-22
Abstract: 896,788. Counting-apparatus. FUJI TSUSHINKI SEIZO KABUSHIKI KAISHA. Dec. 22, 1958 [Jan. 11, 1958], No. 41313/58. Drawings to Specification. Class 106 (1). In an arrangement for providing a representation of the difference in number of positive and negative electrical pulses which may arrive at irregular intervals and be of either polarity, a clock pulse train is fed to a frequency dividing circuit, a pulse being added to the train when a pulse to be counted is negative and a pulse being subtracted from the train when a pulse to be counted is positive, so that the phase shift of the frequency divider output represents by its magnitude and polarity the required input pulse difference. The circuit may be applied to machine tool control.