baber/WOPTO huggingface dataset:
Patent GB-1369946-A (GB)
Title: Noise-muting device for telegraphy receivers
IPC: H04L1/20
Filed: 1973-05-10
Abstract: 1369946 Muting telegraph receivers MEL EQUIPMENT CO Ltd 10 May 1973 22403/73 Headings H4L and H4P Muting apparatus for a telegraphy receiver comprises : means for detecting incoming signal elements of less than a predetermined duration; means for deriving a number representative of the number of such elements received during a given time; and means for providing a signal for muting the receivers if the representative number exceeds a predetermined number. The demodulated signal, comprising pulses less than 5ms. width characterizing noise and pulses greater than 5 ms. width characterizing wanted signal elements, is applied to monostable circuits 25, 26 to produce, on line 32, a pulse at each transition of the input signal. These pulses are applied to the reset input of a counter 33 which is arranged to fill and produce an output of line 35 only if the pulses are more than 5 ms. apart. The output pulses from counter 33 set bi-stables 36, 38 to hold bi-stable 39 in its reset state. If the pulses are less than 5 ms. apart bi-stables 36, 38 remain in their reset states, and the pulses on line 32 clock bi-stable 39 to fed logical " 1 " pulses into an eight stage register 42. The contents of the register is then read out into a counter 45 which counts how many of the eight stages contain a "1". The number counted is then fed to a comparator 46 where it is compared with a reference number to produce on line 47 a signal which mutes the receiver when the number exceeds the reference.
Patent GB-359557-A (GB)
Title: Improvements in and relating to couplings for road vehicles
IPC: B62D53/06
Filed: 1930-07-25
Abstract: 359,557. Tractor-trailer couplings. SCHLECHTLEITNER, F. VON, 23, Merkstrasse, Munich, Germany. July 25, 1930, No. 22470. [Class 79 (iii).] A coupling device which, under the drag of the trailer, tends to lift the front end of the tractor thereby increasing the downward pressure on the rear wheels, comprises an assemblage c of upwardly bent blade springs attached to or supported by the rear axle b, the front end thereof being attached to the tractor frame or body and the rear end d carrying an adjustable connecting element f terminating in a draw-hook e.
Patent GB-1330561-A (GB)
Title: Thyristor
IPC: H01L29/74
Filed: 1971-04-19
Abstract: 1330561 Semi-conductor switching elements ALLMANNA SVENSKA ELEKTRISKA AB 19 April 1971 [24 Feb 1970] 22556/71 Heading H1K The controlled rectifier shown has the central part 7<SP>1</SP> of its second junction 7 raised to a plane nearer the cathode than is the main part of the junction so that the greatest stress when the junction is reverse-biased occurs at the transition region 7<SP>11</SP>. Thus it is at this region that avalanche breakdown first occurs in response to voltage overload in the forward blocking condition; turn-on current is limited by arranging that the part of the outer zone 5 nearest the avalanche is contact-free so that current must pass laterally through the outer zone to reach the cathode 6. Normal turn-on utilizes gate 8 or radiation applied to the inner area of the end face. In a variant the raised portion of junction 7 may be semicircular. The device shown is produced by diffusing gallium into a lightly doped silicon wafer to form zones 2 and 4, by alloying a gold-antimony foil to the contoured surface to form emitter 5, the inner part of the annulus being etched away, and by soldering-on a molybdenum anode 1.
Patent GB-588049-A (GB)
Title: Improvements in separable fastener
IPC: A44B17/00
Filed: 1944-11-15
Abstract: 588,049. Press button fasteners. HUELSTER, O. J. Nov. 15, 1944, No. 22593. [Class 44] A stud member for snap fasteners has a central tubular portion 19 one end of which has a circumferentially enlarged yieldable portion 19a, and a circumferential breast portion 11a comprising a curved wall extending outwardly from the other end of the central portion and continuing axially beyond the first said end to terminate in a reversely and inwardly turned flange, the breast portion protecting the yieldable portion and forming a recess around it for receiving the socket member of the fastener. The central portion may be split axially as at 20 to provide resilient fingers. In a modification the lower ends of the said fingers form an outwardly directed radial flange. In a further modification the yieldable portion comprises a spring ring mounted in a peripheral groove of the central member.
Patent GB-1533610-A (GB)
Title: Method of producing fuel briquettes
IPC: C10L5/06
Filed: 1976-06-02
Abstract: 1533610 Producing fuel briquettes ESCHWEILER BERGWERKS VEREIN 2 June 1976 [4 June 1975] 22730/76 Heading C5G In a method of producing fuel briquettes by hot pressing a mixture comprising a first component of fine-grained coal which softens at pressing temperature, and a second coal component which does not soften or scarcely softens at pressing temperature, these initial components being heated, prior to inter-mixing, to different temperatures by introduction into a heating gas current, of firstly the non-softening or scarcely softening second coal component and subsequently downstream thereof of the softening first component, the components being suspended by the current during heating and after heating being separated from the gas current, the heating gas current comprises a flue gas produced by combusting fuel gas with pure oxygen or an oxygen/nitrogen mixture containing more than 21% by volume oxygen, the initial components to be heated are ungraded and have a particle size up to 14 mm., and the heating is performed in such a way that the non-softening or scarcely softening second component is heated at an average heating rate of about 2500‹ C./sec. and to end temperatures of between 350‹ C. and 700‹ C. giving a bulk weight for the non-softening or scarcely softening component of from 0À3 t/m<SP>3</SP> to 0À7 t/m<SP>3</SP> prior to intermixture.
Patent GB-606193-A (GB)
Title: Improvements in or relating to thiophene compounds and processes of preparing the same
IPC: C07D333/36
Filed: 1945-09-04
Abstract: 2 - (41 - Carboxy - butylidene) - 3 : 4 - di - (acyl - amido)-tetrahydrothiophene esters and their equilibrants, 2 - (41 - carboxybutyl) - 3 : 4 - di - acylamido)-4 : 5-dihydrothiophene esters of the general formul  <FORM:0606193/IV(b)/1> and <FORM:0606193/IV(b)/2> wherein R and R1 are acyl groups and R11 is hydrogen, alkyl, aryl or aralkyl are obtained as a mixture of equilibrants by treating an ester of 2 - (41 - carboxybutylidene) - 3 - isonitroso - 4 - acylamido-tetrahydrothiophene with an acylating-reducing agent, e.g. a mixture of zinc, a lower aliphatic acid and a lower aliphatic acid anhydride.  In an example, 2-(41-carbomethoxybutylidene) - 3 - isonitroso - 4 - benzamido - tetrahydrothiophene is converted into a mixture of two stereoisomeric racemates of the 3-acetamido-compound with zinc, acetic acid and acetic anhydride.  When saponified with warm alkali in aqueous alcohol, followed by acidification of the mixture, the corresponding acids are obtained.  Other 4-acylamido substituents are acetamido and propionamido, whilst the ester group may be methyl, ethyl, propyl, butyl or other lower alkyl, and phenyl, benzyl and other aryl or arylalkyl esters. Specifications 606,192 and 606,196 are referred to.
Patent GB-626196-A (GB)
Title: Improvements in or relating to the manufacture of internally screw-threaded nuts, orother articles
IPC: B23G1/18
Filed: 1947-08-18
Abstract: 626,196. Tapping nuts. ACCURATUS, Ltd., and BOULTON, T. J. H. Aug. 18, 1947, No. 22847. [Class 83 (iii)] [Also in Group XXX] Nuts d and other work-pieces are internally screw-threaded by means of a rotary tap a having a shank c extending from its smaller end, the work-pieces being fed along the shank and discharged at the opposite end of the tap. The shank c has a curved form to fit the correspondingly-shaped bore of a driving pulley e which is of two-part form. The nuts d are intermittently fed from a hopper k by a camoperated, vertically-reciprocated, feeder m to a shoot and slide downwardly thereon to a position from which they are successively pushed on to the shank c by a spring-loaded plunger p controlled by a cam r. A gripper for preventing the nuts from rotating during the tapping operation has fingers g interconnected by a spring 2. The fingers are pivotally connected to a crosshead x mounted on a slidable spindle y having a sleeve 3 slidable thereon within limits provided by a pin and slot connection 20, 21. In operation, a camcylinder 7 is rotated so that a lobe 8 thereon contacts a pin 9 to move both the spindle y and sleeve 3 in order to bring the ends of the gripper adjacent the leading nut d ; at the same time, an abutment 10 on the crosshead x contacts a pivoted spring-loaded stop v so as to arrest the line of nuts d. Further rotation of the cylinder 7 causes a lobe 12 thereon to contact a pin 13 and move the sleeve into engagement with adjustable stops 4 on the gripper, whereby the fingers g grip the end nut d. A further lobe 14 on the cylinder then contacts the pin 9 so as to withdraw the gripper and nut d past the stop v and along the tap while the thread is being cut on the nut. At the end of this operation, a lobe 15 engages the pin 13 to retract the sleeve 3 and cause the gripper to release the nut d. In a modification, the gripper is axially stationary and the pulley e is mounted on a slidable carriage which is reciprocable to and from the gripper by the cam-shaft 5.
Patent GB-987654-A (GB)
Title: Improvements in and relating to air heaters or economisers
Inventor: HARDY LEWIS EMPSALL
IPC: F22D1/14
Filed: 1963-06-07
Abstract: 987,654. Cleaning heat-exchangers. SENIOR ECONOMISERS Ltd. Feb. 28, 1964 [June 7, 1963], No. 22868/63. Heading F2N. [Also in Division B1] An air heater or economiser has a water well f furnished its base with means h for removing sediment i therefrom and includes means for drawing off substantially uncontaminated water from the well and causing it to be discharged under pressure through nozzles o so as to wash both the heating gases and heat exchange surfaces a of the device that are exposed to the gases. As shown the heating gases are forced by a fan c, or drawn by an extraction fan, to a duct d and chimney stack e the duct d forming part of the well f provided with a perforated baffle t. A separate compartment j of the well is connected to the main part of the well by a siphon k and filter m, or a weir, and a pump p discharges water to the nozzles o provided in pipes q and r.
Patent GB-980839-A (GB)
Title: Improved continuously variable change speed mechanism
IPC: F16H39/14
Filed: 1963-06-07
Abstract: 980,839. Hydrostatic transmissions. CAMBI IDRAULIC BADALINI S.p.A. June 7, 1963 [June 8, 1962], No. 22872/63. Drawings to Specification. Heading F2C. The subject matter relates to the swash-plate pump/motor type hydrostatic transmission of Specification 980,837, the claims being directed to the regulation of the swashplate control piston 15 by the diaphragm 32 subjected to the differential centrifugal pressures at the ports 34/1, 34/2 in the arcuate pump supply duct 35 (see Abridgment of Specification 980,837).
Patent GB-316022-A (GB)
Title: Improvements in safety razors
IPC: B26B21/56
Filed: 1928-08-09
Abstract: 316,022. Carpenter, S. H. M. Aug. 9, 1928. Razors, safety. To permit the cutting edges of a razor blade to be used in rotation, the clamping plate of a razor of the " Gillette " type has one or two holes A1, Fig. 2, and the blade, Fig. 4, is marked with numbers or names B so that the razor can be assembled with a number or name visible through the holes, the particular number or name corresponding to the day on which the razor is to be used. Each hole A1 may be fitted with a lens.
Patent GB-230351-A (GB)
IPC: B65B29/04
Abstract: 230,351. Alexander, A. E., (American Tobacco Co.). Aug. 13, 1924. Knot-tying devices.-Filled bags are carried by holders in a conveyer into tying position. The free ends of the drawstring S are passed through diagonal slots 102, Fig. 22, into eyes 103 in plates 100 at the sides of the holder. The tying-mechanism comprises gripping and manipulating members 130, Fig. 14, and looping members 155, 155<a>. The members 130 grip the strings and rotate so that the horizontal string portions between the bag and the plates 100 pass into the jaws 130, 150 and are gripped therein. The members 130 then withdraw the free ends of the strings from the slots 102 and diverge so as to tighten the drawstring and close the bag. Meanwhile the arms 155, 155a have converged and the string is carried around their ends by the members 130 as shown in Fig. 14. The portion S is carried around both arms and is brought, by a downward movement of the member 130 holding it, into a gripping notch in the arm 155<a>. The other portion is carried around both arms, into a notch 165 on the arm 155<a> and into a gripping notch in the arm 155 so that a portion S<2> is above a portion S<3> on the string S. The arms are then retracted as shown in Fig. 16 to form a single bow knot S<4> and the string is pushed out of the gripping notches.
Patent GB-580916-A (GB)
Title: Protection of refractory material and metals in contact with molten aluminium
IPC: F27D1/16
Filed: 1944-11-20
Abstract: A protective coating for refractory material coming into contact with molten aluminium, e.g., ceramic refractory furnace linings comprises calcined aluminosilicate or silicates or substances producing the same on heating (e.g., calcined kyanite, sillimanite or andalusite), a carbonate or sulphate of a metal of the second periodic group, and sodium or potassium silicate.  The composition may be applied as an aqueous slurry and subsequently dried and heated.
Patent GB-971795-A (GB)
Title: Improvements in or relating to elastomer spring devices
IPC: F16F1/36
Filed: 1962-06-15
Abstract: 971,795. Springs. J. JARRET, and J. JARRET. June 15, 1962 [June 15, 1961], No. 23105/62. Heading F2S. A hydrostatic compression spring comprises an S-shaped tubular metal casing 1 which is filled with a mass of elastomer and is sealed, at both ends, with rigid sealing caps 2, 2<SP>1</SP> which are adapted for attachment to two relatively movable parts and which have screws 3 for adjusting the rate of the spring. The spring, which is of flattened transverse cross-sectional shape, has an enlarged, substantially straight, portion 1b which interconnects arcuate portions. In a modification, Fig. 2, a spring comprises a spiral casing 1 having an enlarged end section 1a sealed by an attachment cap 2 provided with a compression adjusting-screw 3. The inner end 1c of the casing is flattened to engage in a slotted shaft 5. Specifications 737,405 and 806,290 are referred to.
Patent GB-592186-A (GB)
Title: Improvements in electrodes in cooking and boiling vessels and the like for the heating of liquids by the passage of electric currents therethrough
IPC: F24H1/10
Filed: 1946-12-05
Abstract: 592,186. Heating liquids by passage of current therethrough. WILKINSON, G. Dec. 5, 1946, No. 23188/44. [Class 39 (iii)] A liquid contained in a cooking or boiling vessel is heated and evaporated by the passage therethrough of an electric current between electrode plates b, b' of metal or other electrically-conductive material fixed in, or approximately in, a vertical plane. Plate b is fixed to the side wall e of the vessel and the plate b<1> is superimposed and is of a larger size to protect the plate b. In the example shown, the plates b, b<1> are separated by insulating members comprising earthenware beads d', d<2> registered in holes in the plate b<1>, fillings c, c<1>, a washer c<2> and a filling g clipped between the plate b and the wall e and partly surrounding a widened portion of the top of the plate b. The plates are fixed to the wall e by their electrical connecting posts d, b<2>, respectively, which have different diameters and are protected by a shroud h on the wall e. The plate b<1> is earthed. The post b<2> is insulated and passes through a hole in the plate b. An earthed metal strip f is secured to the wall e above the plates b, b<1>. The fillings c, c<1>, g impede the escape of vapour from between the plates b, b<1> to maintain the minimum current flow necessary to maintain boiling. The liquid is heated quickly when at its starting level a and more slowly when the level sinks below the widened portion of the plate b.
Patent GB-1604297-A (GB)
Title: Vibratory surface apparatus such as vibrating trays and screens
IPC: B07B1/28
Filed: 1978-05-26
Abstract: An oscillating trough (12) is connected to a foundation (10) by means of a spring device (14). Connected to the same foundation (10), by means of a further spring device (24), is an oscillator (16), which is also connected to the oscillating trough (12) by means of yet another spring device (22). The oscillator (16) is driven by means of one or more drive motors (18) with unbalance (19). In the case of this oscillation apparatus, essentially no oscillating forces are transferred to the foundation (10). The production costs of such an oscillation apparatus are lower than those of the known oscillation apparatuses. <IMAGE>
Patent GB-1219330-A (GB)
Title: Optically sensitized light-sensitive material
Inventor: OEHLSCHLAEGER HANS
IPC: C09B23/01
Filed: 1968-05-16
Abstract: 1,219,330. Methine dyes. AGFA-GEVAERT A.G. 16 May, 1968 [22 May, 1967], No. 23222/68. Heading C4P. [Also in Divisions G2C and H1K] Dyes of the formula in which X is S or Se, Z represents the non- metallic atoms necessary to complete a heterocyclic nucleus containing 5 or 6 atoms in the heterocyclic ring, e.g. a benzoxazole, benzthiazole, naphthoxazole, benzimidazole, benzrelenazole, indolenine, thiazoline, thiadiazole, pyridine, oxazole, oxazoline or oxadiazole nucleus which may be substituted by alkyl, aryl, halogen, carboxy alkyl and salts thereof, sulphoalkyl and salts thereof, acetyl, acetoxy, hydroxyalkyl or sulphamoyl groups, R<SP>I </SP>and R<SP>II</SP> are H or alkyl, R is an aliphatic group including cycloalkyl, a substituted or unsubstituted aryl group or an aralkyl group and R<SP>III</SP> and R<SP>IV</SP> are as for R, or H or a heterocyclic group, or together with the nitrogen atom to which they are attached represent the ring members necessary to form a saturated 5-, 6- or 7-membered heterocyclic ring, e.g. pyrrolidine, piperazine, piperidine, homopiperidine or morpholine, are prepared by reacting an acetanilidovinyl quaternary salt of a heterocyclic base with cyanothioacetamido- or cyano seleno acetamido compounds.
Patent GB-996451-A (GB)
Title: An arrangement for producing and maintaining a pressure difference between two separate gas-filled chambers
IPC: F04D19/00
Filed: 1964-06-04
Abstract: 996,451. Centrifugal and axial-flow fans. SULZER BROS. Ltd. June 4, 1964 [July 1, 1963], No. 23233/64. Heading F1C. In an arrangement for producing and maintaining a pressure difference between two separate gas-filled chambers 1, 3, for example in a coolant system of a nuclear reactor, having at least one fan 4 between the chambers, a sliding cylindrical stop valve 14 is incorporated directly in the or each fan. A number of paralleloperating. fans may be arranged between the chambers. In the event of failure of the fan 4 the valve 14 is closed, as shown in the bottomhalf of the Fig., automatically by a pressureoperated piston 16 or manually, to prevent reversal of flow between the chambers. The valve sealing surface 48 may be coated with rubber or plastics material. The drive shaft 9, which may be driven by an electric motor, is supported in bearings 7, 8, the bearing 8 additionally providing axial support. In other embodiments, Figs. 2 and 3 (not shown), an axial-flow fan provided with a guide ring downstream of the impeller has the cylindrical stop valve arranged either upstream or downstream of the impeller. The fan may be of the mixedflow type.
Patent GB-904975-A (GB)
Title: Improvements in or relating to joint rings for metal pipes with internal linings
IPC: F16L23/12
Filed: 1961-06-27
Abstract: 904,975. Pipe joints. CIBA Ltd. June 27, 1961 [July 4, 1960], No. 23234/61. Class 99(1). A joint ring for a lined pipe 10 comprises a metal cylinder 14, one end face 18 of which is lined with a corrosion-resistant material, e.g. rubber, which extends into the bore of the cylinder and is spaced therefrom over part of its length in such a manner, as to provide a socket between the lining 16 and the bore for the reception of a pipe end 22. As shown, a joint ring is secured by adhesive, e.g. a resin to the ends of each lined pipe 10 and the end faces of the cylinders 14 are held in abutting relationship with a sealing ring 19 therebetween by a known connection. The joint rings may be spot welded to the pipe ends. Specification 849,826 is referred to.
Patent GB-795826-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: ANGWIN DAVID WILLIAM TOLLEY
IPC: G21C19/20
Filed: 1955-08-11
Abstract: 795,826. Nuclear reactors. GENERAL ELECTRIC CO., Ltd. Aug. 1, 1956 [Aug. 11, 1955], No. 23238/55. Class 39(4). In a gas cooled nuclear reactor a graphite moderating core has vertical channels for the fuel elements and cooling gases, and is supported inside a concrete pressure vessel. As shown, the cooling gas enters through the inlets 7, and passes upwards through the grid support 2 and the core 1 to the outlets 8. Gas seal 9, between 1 and the concrete pressure vessel 3 causes all gas to flow through the core 1. The inner surface of 3 has a metal lining 10. Fuel is inserted by charging machine 5 and is discharged through vessel 6. Specifications 785,945 and 789,022 are referred to.
Patent GB-360462-A (GB)
Title: Improved thermostatic control in oil burning installations
IPC: F23D11/44
Filed: 1930-08-01
Abstract: 360,462. Fuel pumps. ASIATIC PETROLEUM CO., Ltd., LUBBOCK, I., and JOYCE, J. R., St. Helens Court, Great St. Helens, London. Aug. 1, 1930, No. 23292. [Class 102 (i).] Temperature, controlling. -'- In apparatus for supplying heated fuel oil to a. burner r installation, such as that described in Specification 339,314, [Class 75 (i), Burners &c.], the heating of the oil in a vessel B is controlled by a thermostat C, and the motor D of the pump supplying the heated oil is controlled-by another thermostat H adapted to initiate the supply when the oil reaches a deter. mined temperature, which may be below the lower limit of the heater thermostat. The thermostat H cuts off the supply if-the oil-cools below a certain temperature. Instead of the thermostat H a thermal switch adapted only to start the supply may be used. A single 'main switch G is provided and a lamp J may be used to indicate whether the heater is on or off. To guard against dangerously high temperatures, a fusible element K subject to the heat of the oil may be inserted in the electric supply line. The heater and pump may be controlled by a single thermostat performing the two functions. Specification 353,259 also is referred to.
Patent GB-440749-A (GB)
Title: Improvements in supporting means for shelves of cookers, cupboards and the like receptacles
IPC: F24C15/16
Filed: 1934-08-13
Abstract: 440,749. Shelves. STOVES, Ltd., and RICHARDSON, W., Rainhill, near Liverpool. Aug. 13, 1934, No. 23294. [Class 52 (i)] [See also Group XI] A sliding shelf or grid 22 is supported cantilever fashion in all positions of use. As shown applied to an oven the shelf supports are spaced studs 19, 20 carried by a flap 14 hinged to the side of the oven.