baber/WOPTO huggingface dataset:
Patent GB-833708-A (GB)
Title: Frequency comparison means
IPC: G01P5/07
Filed: 1957-02-26
Abstract: 833,708. Electric indicating systems. SPERRY RAND CORPORATION. Feb. 26, 1957 [Feb. 27, 1956], No. 6437/57. Class 40 (1). [Also in Group XL (c)] The invention relates to a frequency comparison means for detecting the occurrence of, and the sense of, a departure from synchronization between two trains of recurrent unidirectional impulses of short duration. As applied to a ship's log, an impeller 1, driven by the ship's passage through the water, drives an impulse producing commutator 2 which applies a train of impulses 4 to the primary of a transformer 7, a second series of impulses 6 produced by a commutator 63, driven by a two-phase motor 55, being applied to the primary of a transformer 9. The outputs of the transformers are fed through rectifiers 11, 13, to provide two trains of D.C. pulses which are 180 degrees apart in time phase. The pulses on lead 15 may be summed to operate a distance indicator 21. For indicating the speed, the lead 15 is connected via a relay coil 25 to a winding 29 of a saturable reactor having substantial sensitivity, the lead 17 being connected via a relay coil 33 to the other winding 37 of the saturable reactor, the windings 29 and 37 being wound in opposition. When alternate, staggered pulses are received by the windings 29, 37, neither relay is energized, but if, for example, commutator 2 is running faster than commutator 63 a second pulse will be received through the winding 29 before a pulse is received through the winding 37 to produce an opposing flux, and the relay 25 will be energized. Similarly, if commutator 2 is running slower than 63 the relay 33 will be energized. The relays 25, 33 are slugged to delay the drop-out after the relay switch is closed. A D.C. motor 39 is arranged to run in one direction or the other, according to which relay 25 or 33 is energized, and to be at rest when neither relay is energized, and through a lead screw 46 adjusts the slider 47 of a potentiometer 49, supplied with A.C., and having an earthed centre tap. The output of the potentiometer is applied via an amplifier 51 to one field of the motor 55 which therefore rotates at a speed and in a direction corresponding to the setting of the potentiometer, a speed generator 57 having a feedback connection to the amplifier 51 ensuring that the motor speed is proportional to the potentiometer setting. The motor 39 will displace the potentiometer slider until the speed of the commutator 63 equals that of the commutator 2. A pointer 65 connected to the slider 47 indicates the ship's speed which may also be indicated by a speedometer 64 driven by the shaft of the commutator 63.
Patent GB-971542-A (GB)
Title: Multipoint electric spot welding machine
IPC: B23K11/31
Filed: 1961-02-22
Abstract: 971,542. Welding by pressure. H. A. SCHLATTER A.G. Feb. 22, 1961 [Feb. 23, 1960], No. 6495/61. Heading B3R. A multipoint spot welder for making gridlike structures comprises a plurality of support members, at least one pair of electrodes on each support member, means for conducting workpieces between the pair of electrodes and means for operating the pairs of electrodes. The machine comprises a frame in which are mounted a number of narrow boxlike supports 3, each carrying a pair of hydraulic cylinders 4, 5 supporting the electrodes 1, 2. The supports 3 are arranged between upper and lower conductor rails 7, 8 and are slidable longitudinally relative thereto, the first, third &c. being connected to the upper rail and insulated from the lower while the second, fourth &c. are connected to the lower and insulated from the upper. A welding transformer is provided for each pair of electrodes, being connected to a conductor rail and to the adjacent electrode, e.g. a transformer 9 is connected to rail 7 and to a terminal 10 connected to the upper electrode, the lower electrode being connected to a terminal 13 in contact with the support member. Each pair of electrodes is fed from the same phase. A sleeve 6 is mounted centrally of each support member to guide the longitudinal rod to be welded to rods introduced transversely in the manufacture of concrete reinforcing mesh.
Patent GB-1338252-A (GB)
Title: Builders scaffolding
IPC: E04G7/30
Filed: 1971-04-19
Abstract: 1338252 Scaffolding joints KWIKFORM Ltd 19 April 1971 [11 Feb 1970 18 March 1970] 6520/70 and 12960/70 Heading E1S A scaffolding upright 10 is provided at spaced positions along its length with sets of sockets adapted to receive dependent spigots 15 on transverse scaffold elements 18, 19, each set of sockets including a pair of side sockets 13 mounted on opposite sides of a central socket 12 mounted on _one side of the upright, so that the sockets 13 are offset from a parallel axial plane of the upright and the sides of the upright at that axial plane are devoid of sockets. A further socket 14 may be provided at the side of the upright opposite to the central sockets 12. The spigots 15 on the transoms 18 and ledgers 19 each have a wedge 17 operable to clamp the spigot 15 in a respective socket. Also shown is an adjustable extension unit comprising a pair of parallel tubes 20 having spaced holes 39 and connected together by couplings 21, 22, the lower 21 of which is mounted on the upright 10 and is slidable along the members 20 and securable by pins 40 engaging holes 39.
Patent GB-140202-A (GB)
Title: A new or improved sanitary belt
IPC: A61F13/64
Filed: 1919-03-17
Abstract: 140,202. Gayfer, E. I. M. March 17, 1919. Catamenial appliances. - A sanitary bandage comprises a sponge c saturated with a disinfectant inserted through a longitudinal opening into a stockinette or like inner cover b which is provided with supporting-rings b' and enclosed within an outer casing a of rubber. The outer casing is formed with a central opening a<1> having its edge a<2> thickened to form a seating. The sponges and inner covers are provided in duplicate for each appliance.
Patent GB-376683-A (GB)
Title: Improvements in the manufacture and production of calcium nitrate from dolomite withthe simultaneous recovery of magnesia
IPC: C01F11/38
Filed: 1932-03-04
Abstract: In the production from dolomite of calcium nitrate and magnesia, the dolomite is dissolved in nitric acid and precipitation of magnesia effected by milk of lime or milk of dolomite which has previously been freed from all but the finest particles, as by passage through a fine sieve.  In a modification, dolomite is calcined and slaked, the milk of dolomite freed from coarse particles and then treated with nitric acid to extract the calcium only, whilst in a further modification a part of the milk of dolomite is freed from coarse particles, the residue obtained and the remaining milk of dolomite dissolved in nitric acid, and magnesia precipitated by the fine milk of dolomite.  Precipitation of the magnesia is preferably effected below 50 DEG  C.
Patent GB-807100-A (GB)
Title: Improvements in process and apparatus for purification of crystals
IPC: C07C7/14
Filed: 1956-03-02
Abstract: <PICT:0807100/III/1> In a process for crystal purification in which a slurry of liquid and crystallized solids is moved through a liquid removal zone, a reflux zone, and a solids melting zone, part of the melt of the solids melting zone being removed from the system and another part being forced in a direction countercurrent to the direction of movement of solids in the reflux zone, the material in the zones is subjected to an intermittent back pressure simultaneously with the movement of the solids.  A liquid feed mixture of two or more components is forced by a pump 3 into a chiller A, where one of the components is crystallized, and then into a column 4, having a filtration zone B where liquid passes through a cylindrical filter 14 and leaves by a pipe 16.  The crystal mass passes through a reflux zone C towards a heater 17 which melts the crystals.  Part of the melt is withdrawn through a pipe 18 and the remainder is forced back through reflux zone C to effect crystal purification, the resulting liquid being drawn off through outlet 16 with the filtrate.  A piston 21 in a cylinder 19 applies a back-pressure to the material in the column at a frequency of 15 to 200 pulsations per minute.  A thermocouple 29 is connected to a temperature recorder-controller TRC which operates a valve 30 in pipe 18 and is adjusted so that the rate of withdrawal of melt in pipe 18 is varied to maintain a desired rate of advance of crystals through reflux zone C.  The withdrawal of filtrate in pipe 16 may be controlled by a solenoid valve 32, so that filtrate is removed only on the compression stroke of piston 21.  The withdrawal of melt by pipe 18 also may be controlled so that melt withdrawal ceases during the compression stroke of the piston 21.  In a modification the cylinder 20 is spaced from the column 4 by a conduit, and in another modification the pulsation is produced by a diaphragm in the side of the column which is actuated by a piston acting on an intermediate fluid.  In examples, para-xylene is separated from a mixture of xylenes and ethyl benzene.  Lists are given of compounds which may be separated from mixtures containing them.  The process also may be used to remove water, in the form of ice crystals, from fruit and vegetable juices and other liquid food products.
Patent GB-1378315-A (GB)
Title: Suction pads
IPC: B66C1/02
Filed: 1973-01-12
Abstract: 1378315 Suction holding devices NATIONAL RESEARCH DEVELOPMENT CORP 12 Jan 1973 [11 Feb 1972] 6612/72 Heading B8H A suction holding device for lifting slabs of uncured concrete comprises a series of distribution pipes 16 extending between a plenum chamber 26 and a holding surface 14, Fig. 2 (not shown). The plenum chamber 26 has an apertured plate 29 adjacent to and corresponding with the disposition of the pipes 16 and a control plate 36 is insetable between the plate 29 and the pipes to control which pipes are connected to the plenum chamber and hence which areas of the holding surface are activated. Closure members 50 are positioned above each of the apertures 30 in the plate 29 to provide individual control of the distribution pipes.
Patent GB-374486-A (GB)
Title: Process of making iron oxide and sulphur dioxide from iron sulphide ores
IPC: C01B17/52
Filed: 1931-03-04
Abstract: <PICT:0374486/III/1> In a process for producing iron oxide and sulphur dioxide by burning finely divided iron sulphide, such as pyrites or pyrrhotite, the sulphide is passed downwardly through a combustion zone maintained at a temperature above that at which sulphur dioxide will be oxidized to trioxide and its descent is retarded by a substantially vertically up-flowing current of oxidizing agent such as air, so that the sulphide is completely oxidized whilst in suspension.  The temperature produced is such that fused hollow globular particles of black magnetic iron oxide are obtained.  The gaseous products of combustion are cooled rapidly so that no formation of sulphur trioxide results.  In a refractory-lined furnace 11 for carrying out the process, the finely divided ore is blown from hopper 25 with less air than necessary for complete oxidation to nozzle 30, and is burned in chamber 14, initially preheated.  The requisite additional air, preheated by the fused iron oxide which settles upon and is removed by means 18, is drawn in at the bottom of the chamber by blower 21.  The evolved gases containing sulphur dioxide passing up the chamber preheat the incoming ore.  In chamber 15, fine particles carried over by the gases are deposited, and are removed by means 19; the gases are then rapidly cooled to, say, 200 DEG  C. in boiler 20.  The solid product may be subjected to magnetic separation.  The Specification as open to inspection under Sect. 91 (3) (a) comprises also replacing one or both of the countercurrents of air by a nonoxidizing gas, and introducing the oxidizing gas separately.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1325287-A (GB)
Title: Apparatus for batching articles
IPC: B65B35/30
Filed: 1972-02-14
Abstract: 1325287 Conveying fruit in liquid channels SICA "POMANJOU" 14 Feb 1972 [16 Feb 1971] 6752/72 Heading B8A Fruit 7 conveyed in a liquid trough 2 is formed into batches by the action of two spaced upstream and downstream baffles (4) and (5) (Figs. 1-3, not shown), respectively. Firstly the desired number of fruit 7 is floated into the zone of the trough between the baffles, the baffles 4 being open. The baffle 4 is closed when the fruit is collected, and the baffle 5 is then opened, so that the fruit can pass to a storage or packaging unit (not shown). Each baffle comprises a member 10 carried by arms 12 pivotally mounted at 13. The arms 12 can be swung from a baffle inoperative position (broken lines) to an operative position (full lines) and vice versa, by the action of a piston/cylinder unit 17. A member 22 prevents accumulated fruit sinking to the bottom of the trough 2.
Patent GB-824980-A (GB)
Title: Photoelectric scanning head for use in testing and calibrating meters such as electricity meters having a rotating measuring member
IPC: G01R35/04
Filed: 1957-02-28
Abstract: 824,980. Optical systems. LANDIS & GYR A.G. Feb. 28, 1957 [March 1, 1956], No. 6766/57. Class 97(1) [Also in Groups XXXVI and XL(b)] A photo-electric scanning head for counting the number of rotations of a disc 26 or measuring its rate of rotation comprises an electric lamp 22 with an elongated filament 23, a cylindrical lens 28 movable by a lever 29 through 90 degrees so as to have its axis either parallel with or perpendicular to the filament 23 to produce a narrow or wide image thereof on the edge of the disc 26 and photo-cell 34 on to which reflected light is focused by a lens 37. The disc 26, which may be the indicator of an electricity meter, is provided with narrow marks to co-operate with the narrow image so as to measure rate of rotation by a stroboscopic effect, and with a single wide mark to co-operate with the wide image for counting rotations.
Patent GB-1504972-A (GB)
Title: Hardenable sheet materials
IPC: A61F13/04
Filed: 1975-02-19
Abstract: 1504972 Coated sheet material NATIONAL RESEARCH DEVELOPMENT CORP 19 Feb 1975 [29 Nov 1973 25 Nov 1974] 6799/75 and 6800/75 Heading B2E [Also in Division C3] A sheet material which is hardenable when contacted with water includes components which react in the presence of water to form a poly (carboxylate) cement, such components generally comprising a poly (carboxylic acid) such as polyacrylic acid, or a hydrolysable precursor thereof, and an ion-leachable inorganic particulate material, e.g. zinc oxide or an aluminosilicate glass. The sheet material is preferably flexible and formed from a natural cellulosic material or a synthetic material such as polyamide, polyester or cellulose acetate. The material is particularly useful as a surgical splinting material; other uses include repair of damaged trees and children's modelling materials.
Patent GB-539001-A (GB)
Title: Improvements relating to the permanent waving or curling of the hair
IPC: A45D2/10
Filed: 1940-04-16
Abstract: 539,001. Permanent waving of hair. SUTER, E. F. April 16, 1940, No. 6883. [Class 131] A scalp protector and clamp for the root of a tress of hair to be treated comprises an electric pad or washer a having a central aperture b through which is passed the tress of hair and a circumferential groove c to accommodate a clip or wound tape whereby the neck of the pad may be caused to grip tightly the tress. Specifications 246,021, 330,502, [both in Class 131], and 433,290 are referred to.
Patent GB-1428361-A (GB)
Title: Safeguarded medicinal compositions
IPC: A61K9/50
Filed: 1972-02-15
Abstract: 1428361 Safeguarded medicaments A GRANT 15 Feb 1973 [15 Feb 1972] 7026/72 Heading A5B Pharmaceutical compositions in the form of capsules and slugs comprise a drug (e.g. aspirin or a barbiturate) and an emetic, the quantity of the latter being sufficient to produce emesis When the drug is administered at overdose levels, the availability of the drug being delayed relative to that of the emetic by a coating thereon of a third substance which delays release of the drug but not the emetic. Specific reference is made to a capsule filling comprising pellets of enteric-coated drug and non- enteric pellets containing emetic of similar appearance. Suitable emetics are emetine and cephaelin drugs, ipecacuanha extract, mustard, ZnSO4 and apomorphine.
Patent GB-255132-A (GB)
Title: Improvements in automatic feed mechanism for cigarette making machines
IPC: A24C5/39
Filed: 1925-03-16
Abstract: 255,132. Marks, E. C. R., (American Machine & Foundry Co.). March 16, 1925. Cigarette-making machines.-In tobacco-feeding Mechanism for cigarette-making machines, the tobacco in a hopper 3 is fed forward by a carded belt 7 and is pressed upon this belt by a plain roller 17; superfluous tobacco is removed by a vertical carded belt 25, and the remainder is showered into the trough 6 by a picker roller 35. A rotating tumbling device 32 assists in circulating the tobacco within the hopper. The belts 7, 25 and the. roller 17 are driven by chain gearing from the main shaft 10 of the feeding device. the device 32 being driven from the shaft 18 of the roller 17. The picker roller 35 is driven by a belt 38 from a shaft of the machine. One side 39 of the hopper 3 is movable laterally by screws 40 secured thereto, these screws carrying nuts 41 having sprocket teeth and being rotatable in fixed bearings by a chain 42 engaging a crank-rotated sprocket 43.
Patent GB-436517-A (GB)
Title: Improvements in or relating to methods and apparatus for waving hair
IPC: A45D7/04
Filed: 1934-03-06
Abstract: 436,517. Hair - waving appliances. TIRACCHINI, V. E., 8, Redington Road, Hampstead, London. March 6, 1934, No. 7166. [Class 131] In a process of hairwaving in which a tress is wound upon a former and is inserted in a tube or clip where it is heated in the presence of water or a hair waving lotion, pressure is applied to the tress during the heating process by the swelling action of the loofah under the action of moisture. The loofah is formed into a sachet and confined in contact with the wound tress. The sachet may comprise a layer of loofah secured to the centre of a sheet or sheets of paper backed by a sheet of cellulose, the sachet, in use, being applied about the wound tress and secured in contact therewith by a clip. In a modification, the sachet is formed by winding a backing sheet 14, provided at one end with a layer of loofah 15 and at the other with a sheet of cellulose 18, about a spindle slightly larger than the wound tress of hair to be treated and securing the outer edge of the cellulose sheet by cement, the loofah being thus surrounded by an inextensible sheath which acts as the confining means. In a further modification, the sachet comprises a tube formed by spirally winding a strip of loofah about a former and securing the edges of the overlapping coils by stitching, the outer portion of the tube acting as a confining means for the inner portion ; an inextensible backing sheet may be wrapped around the tube to act as an additional confining means.
Patent GB-1358602-A (GB)
Title: Checking circuit for determining the state of adc source
IPC: G01R31/36
Filed: 1972-03-17
Abstract: 1358602 Protective arrangements COAL INDUSTRY (PATENTS) Ltd 17 March 1972 [18 March 1971] 7204/71 Heading H2K [Also in Division G1] In an arrangement for periodically checking the voltage of a standby battery 1, a clock 16 closes a switch 6 at regular intervals (e.g. once an hour) to cause the battery to pass current through a resistive load 5 for a short while, and an alarm is given if the magnitude of the current is too low. The load current is passed either directly through a relay coil (Fig. 1, not shown), or through a shunt 30 across which is connected a Zener diode threshold circuit 31 driving a relay coil 32. In either case an adequate current will trigger the relay to open contacts 9 and thus prevent energization of a relay 10, but an inadequate current will leave the contacts 9 closed so that when, a short time later, the clock 16 closes a further switch 8 the latching relay 10 will switch on a lamp 23 and bell 24. Several batteries 1, 1<SP>1</SP>, 1<SP>11</SP> may be monitored by sequentially closing respective switches 2, 2<SP>1</SP>, 2<SP>11</SP>. The clock may control switches 6, 8 indirectly via a further relay (Fig. 1). A flasher unit 35 indicates when the battery is being tested, and a thermal relay 4 protects the battery against short circuits.
Patent GB-225441-A (GB)
Title: Improvements relating to brakes of the rail gripping type
IPC: B66C9/18
Filed: 1924-03-21
Abstract: 225,441. Dunlop, S., (Berliner Akt.-Ges. f³r Eisengiesserei und Maschinenfabrikation, [formerly Freund & Co., J. G.]). March 21, 1924. Nipping-lever and like grip; skid; locking by frictional detents.-A track brake applicable to cranes, shed doors, &c. comprises tongs arms a pivoted at b to links c and having pivoted to their upper ends at f nuts e engaging left- and right-hand threads on a spindle d rotated by a sprocket wheel g, the spindle threads being low pitched so that the nuts are self-locking. Pivotally carried in the jaws at the lower end of the tongs are cams h which grip the rail m when the nuts e are forced apart by rotation of the sprocket g. These cams are so shaped that after application of the brake movement of the crane in either direction slightly rotates the cams h and causes them to grip the rail tighter owing to their increased radii. Springs k and rollers l are used to ensure symmetrical positioning of the jaws.
Patent GB-623126-A (GB)
Title: An improved combined blower and fire-screen
IPC: F24B1/192
Filed: 1947-03-15
Abstract: 623,126. Blowers and firescreens. MARSHALL, A. B. DE L. March 15,1947, No. 7242. [Class 126] A combined blower and firescreen comprises a front portion 1 and triangular side cheeks 2 and is supported on the hearth by twisted brackets 7 which may be adjustably secured to the side cheeks as by wing nuts 11 to enable the height of the screen to be varied. The frontal portion may be a separate component from the side cheeks but preferably is formed integrally with them. It may be lined with asbestos which may be extended to the side cheeks.
Patent GB-1463573-A (GB)
Title: Windshield washers
IPC: B60S1/52
Filed: 1974-02-18
Abstract: 1463573 Windshield washer assembly ANDERSON CO 18 Feb 1974 [8 March 1973]  7360/74 Heading A4F [Also in Division B2]  A windshield washer jet assembly comprises a hollow washer body and a securing member, e.g. a rivet, which extends through the body between opposed portions thereof, for securing the body to the wiper arm assembly, and is spaced from the interior surface of the remainder of the body. The securing member and the interior surface of the body define a chamber through which cleaning liquid flows, in use, from an inlet passageway, e.g. inlet sleeve 72, to jet outlet passageway means which each extend from the body exterior to the interior thereof at fixed locations through the remainder of the body. As described, a hose 44 which is connected to a liquid supply (not shown) is retained within wiper arm sections 12, 16 and terminates on the sleeve 72. The jet outlet passageway means comprises two pairs of outlets 75, 76 and 80, 82, outlets 75, 76 being directed to the further end of the wiper blade and forming an angle 102 with the sleeve 72 axis less than the angle 104 formed by each of the other jet outlets 80, 82, liquid being directed to both sides of each wiper blade end. The rivet extends centrally through cavity 74 and secures body 70 to upper wall 42 of section 16, a cover-plate 86 forming the lower wall of the cavity 74. The hose 44 is maintained within channel section 16 by one or more resilient clips which frictionally engage the channel walls. With section 12, the hose 44 passes through a helical tension spring 56 which also serves to urge the wiper blade against the windshield.