baber/WOPTO huggingface dataset:
Patent GB-649016-A (GB)
Title: Improvements in or relating to super-charged four-stroke internal combustion engines
IPC: F02B33/26
Filed: 1948-07-23
Abstract: 649,016. Four-stroke engines. BLEASE, F. R. July 23, 1948, No. 19700. [Classes 7 (ii) and 7(vi)] In addition to the normal inlet and exhaust valves 12, combustible mixture is compressed in the crank case and delivered to the cylinders at the end of the induction stroke through a valve 23. In the twin-cylinder engine shown, tandem pistons 22 force the mixture into the cylinders alternately. The valve 23 is preferably a rotary valve which has passages arranged at right-angles for the two cylinders and rotates at quarter engine speed, the inlet valve 18 rotating at half engine speed. To increase the compression ratio in the crank-case, slotted projections thereon extend into the piston skirts and the fly-wheels have plates attached to their faces, and one or more pump cylinders may be provided to increase the crank-case pressure. Valves may be arranged so that air and mixture may be forced from the crank-case to the cylinders at alternate strokes. The fuel tank may be divided into two parts supplying carburetters 13, 17, respectively, lubricant being added to the supply for the carburetter 17.
Patent GB-314542-A (GB)
Title: Process for the manufacture of tri-substituted thioureas
IPC: C07C335/04
Filed: 1929-06-27
Abstract: 314,542. I. G.. Farbenindustrie Akt.- Ges. June 30, 1928, [Convention date]. Trisubstituted thioureas are prepared by splitting off hydrogen sulphide from a secondary amine salt of a dithiocarbamic acid derived from a primary amine. According to the examples, (1) sodium methyldithiocarbamate is first prepared from carbon disulphide, methylamine and sodium hydroxide in known manner and boiled with dimethylamine hydrochloride in alcoholic or aqueous solution to give trimethylthiourea; when the solution is alcoholic, the sodium chloride which separates is first filtered off; (2) an aqueous solution of dimethylamine hydrochloride is heated with sodium phenyldithiocarbamate, obtained by interaction of aniline with carbon disulphide in presence of sodium hydroxide, until N-phenyl-N<1>- dimethylthiourea separates out. The Specification as open to inspection under Sect. 91 (3) (a) also describes the preparation of trisubstituted thioureas by treating a salt of a dithiocarbamic acid monosubstituted on the nitrogen atom, the salt being one with a light metal or organic, cation, with a secondary amine salt of an acid other than dithiocarbamic acid, and then splitting off hydrogen sulphide. It also includes examples according to which carbon disulphide is run into a mixture of dimethylamine and butylamine in water, or of aniline and dibutylamine in water, or of methylamine and dimethylamine in ether; on boiling until hydrogen sulphide is no longer evolved, dimethylbutylthiourea, dibutylphenylthiourea or trimethylthiourea respectively is obtained. This subjectmatter does not appear in the Specification as accepted.
Patent GB-773734-A (GB)
Title: Improvements in or relating to contact devices for electrical switching apparatus
IPC: H01H50/54
Filed: 1955-07-08
Abstract: 773,734. Electromagnetic relays. TELEFONAKTIEBOLAGET L. M. ERICSSON. July 8, 1955 [July 8, 1954], No. 19910/55. Class 38(5) A relay contact arrangement for controlling a number of circuits and including both " make " " break " contacts, comprises four contacts 4 mounted in an insulating bar 1, moved upwards by an armature (not shown) and downwards by a spring 2. The fixed contacts 5a, 5b comprise L-shaped wire springs fixed at the end 10 and supported at 11 for turning movement when the contact end 9 is engaged by a contact 4 arranged at right-angles to the spring part 8. This turning movement twists the spring part 6 and when the contacs 5a, 5b are not engaged they have the position shown for the four upper "make" contacts. Should a contact 5a or 5b of one of the four lower break contacts become welded, upward movement of the bar 1 is arrested when the welded contact engages a stop 12a or 12b, but the bar movement is sufficient to open all the other closed contacts. However, this movement is insufficient to close the upper "make " contacts. Similarly, should a "make" contact weld and the armature is released, this welded contact is engaged by a stop 13a or 13b, the bar movement causing the remaining closed contacts to open but not allowing closure of the " break " contacts.
Patent GB-1117523-A (GB)
Title: Electric wiring connectors
IPC: H01R31/00
Filed: 1965-05-12
Abstract: 1,117,523. Two-part couplings. M. R. HANCOCK. 3 May, 1966 [12 May, 1965], No. 19956/65. Heading H2E. An electric connector (Fig. 2) comprises a strip of metal having its edges 201 bent inwards to form a resilient flat socket 20 for engagement with a blade terminal 21 (e.g. of a switch), and a portion bent to form a tubular socket 22 adapted to receive a bared conductor wire 24 having its strands 241 bent over the end of a slit resilient ferrule 23. The socket 22 may have one end enlarged to facilitate insertion of the ferrule 23, and may be positioned relative to the flat socket 20 in a variety of configurations (Figs. 5-10, not shown) for example parallel or perpendicular to it at either end or to one side, inclined to the axis of the flat socket or as a coaxial extension thereof.
Patent GB-1141676-A (GB)
Title: Improvements in or relating to packaging cases
Inventor: HILL JAMES HARTLEY
IPC: B65D5/54
Filed: 1966-05-06
Abstract: 1,141,676. Cartons with opening means. HUGH STEVENSON & SONS Ltd. 17 April, 1967 [6 May, 1966], No. 20091/66. Heading B8P. A carton has a top panel 24 to which closure flaps 25, 26 are hinged, and parallel tear lines 27, 28 extending across panel 24 and to the free edges of flaps 25, 26 to facilitate opening and conversion to a tray. Ventilation holes (not shown) may be punctured in e.g. panels 18 and 19.
Patent GB-499590-A (GB)
Title: Improvements in and relating to radio frequency electric filters
IPC: H01P1/201
Filed: 1937-07-21
Abstract: 499,590. Impedance networks. BELLING & LEE, Ltd., and STRAFFORD, F. R. W. July 21, 1937, No. 20140. Drawings to Specification. [Class 40 (iii)] A plurality of transmission lines of different length, e.g. coaxial cylinders, short-circuited quarter wave-length lines, or open-ended half wave-length lines, are connected in series so as to be operative over a range of frequencies.
Patent GB-239189-A (GB)
Title: Apparatus for subjecting gases or vapours to the absorptive action of solids
IPC: B01D53/06
Filed: 1925-08-11
Abstract: 239,189. Farbwerke vorm. Meister, Lucius, & Br³ning. Aug. 28, 1924, [Convention date]. Purifiers; purifier waste, revivifying. - In apparatus such as that described in Specifications 187,223 and 191,005, in which absorptive material, such as charcoal, is contained in several chambers that are rotated relatively to gas supply pipes, all the ports for admission and exhaust of gas are arranged in a single surface which constitutes a sliding surface for the chambers. The absorptive material is contained in an annular cage g of wire gauze placed in an annular vessel c, both the cage and vessel being subdivided into separate chambers by means of partitions d, d<1>, h. The vessel c with the cage g is rotatably mounted on a box f provided with ports b on its upper surface. The bottom of the vessel c slides on the upper surface of the box, and is formed with ports a adjacent the partitions d, d'. The box f is divided into compartments for the admission and exhaust of different gases and vapours through openings k - - p as described in Specification 187,223.
Patent GB-187051-A (GB)
Title: Improved manufacture of alcohol ether mixtures
IPC: C10L1/02
Filed: 1921-07-27
Abstract: 187,051. Wade, H., (Lichtenthaeler, F. E.). July 27, 1921. Motor spirit comprising alcohol-ether mixtures is produced by generating ether vapour, preferably from alcohol, and condensing it by absorption in alcohol. Alcohol is treated with sulphuricacid in a generator 10, and the ether vapours are neutralized and concentrated in a scrubber 14 and a fractionating-column 16 fitted with reflux condenser 18. The vapours then enter a - condenser 20, where partial condensation occurs even when only warm (80-85‹ F.) condensing water is available, the uncondensed vapours being led into a tower 24 where they are absorbed in water-cooled alcohol. The mixture from the tower 24 is mixed with the liquid ether from condenser 20. Where the condensing-water is sufficiently cold, preliminary partial condensation is omitted, and the ether vapour is directly condensed and absorbed in cooled alcohol.
Patent GB-576227-A (GB)
Title: Improvements in cycle stands
IPC: B62H1/06
Filed: 1943-12-07
Abstract: 576,227. Cycle supports. FRENCH, G. F. Dec. 7, 1943, No. 20416. [Class 136 (i)] A cycle stand comprises an angled rod having a stem part 2 pivotally mounted in a tubular casing 1 for securing to the cycle frame, a foot part 3 and spring controlled means releasable by axial movement of the stem for angularly locating it with the foot part in an inoperative position in the plane of the cycle frame or turned outwardly to either side to form a lateral support. The locating means comprise a tooth 15 on the stem 2 and three notches in a bush 5 mounted in the tube 1. A compression spring (not shown) within the casing 1 presses the stem 2 upwardly to maintain the tooth 15 in engagement with the middle notch corresponding to the inoperative position, or with either outer notch corresponding to the operative positions of the stand. The tooth is disengaged from the notch 5 by pressing down a handle 12 by turning which one of the other two notches may be engaged. The handle 12 is adjustably mounted at 13 in an extension 10 of the member 2. A rubber foot 4 is mounted on the foot part 3.
Patent GB-153696-A (GB)
Title: Improvements in dental articulators
IPC: A61C11/02
Filed: 1919-08-20
Abstract: 153,696. Parke, A. Aug. 20, 1919. Ball-jointed hinges.-The hinge portion a of a dental articular is formed so that each of the pivotal openings 2 therein are made to receive balls c mounted within openings 3 in screws d carried by bearings 4 on the lower jaw f. The bearings 4 are split and joined by screws g, so as to secure the screws d in their adjusted position. The spaces 7 serve for lubricant.
Patent GB-1108165-A (GB)
Title: Self-triggering ignition system and trigger circuit therefor
IPC: F23Q3/00
Filed: 1965-05-14
Abstract: 1,108,165. Pulse generators. F. L. WINTERBURN. 14 May, 1965 [22 Sept., 1964], No. 20461/65. Heading H3T. [Also in Division F1] A trigger circuit for gated switching means 13 connected in a resonant circuit comprises a trigger capacitor C5, means for charging the trigger capacitor through a resistance, a Zener diode D8 having its anode connected to the gate electrode of the gated switching means and having its cathode connected to the trigger capacitor and when the voltage across the trigger capacitor applied to the cathode of the Zener diode reaches the breakdown voltage of the Zener diode conducting current to the gate electrode thereby to render the gated switching means conductive and discharge means connected to the trigger capacitor and providing a discharge path for the trigger capacitor when the gated switching means is conductive. The gated switching means 13 may comprise a silicon controlled rectifier. The power supply 10 may be of the type disclosed in Specification 1,040,590.
Patent GB-620699-A (GB)
Title: Improvements in or relating to containers for liquids such as perfumes and disinfectants
IPC: A45D37/00
Filed: 1946-07-09
Abstract: 620,699. Jewellery. PIESTRAK, C. S. July 9, 1946, No. 20488. [Class 43] [Also in Group VI] An article of jewellery comprises a container removably mounted in an outer portion g of ornamental material of any desired shape and held in position by flanges i, Fig. 3, or by rings j, Fig. 4, which may be of precious metal; The container comprises a flattened circular metallic casing a having upper and lower sides centrally perforated and bent inwards at c around the perforations b to form a central passage having an opening f in its mid-portion. Absorbent material d (felt, wool, glass wool, cotton wool, pumice, kapok of kieselguhr) is disposed within the casing and is adapted to be charged with perfume or the like which evaporates through the mid-portion apertures f of the container. The central aperture may be closed by suitable caps (not shown) one form of which is perforated or slotted whereupon the inner portions c are correspondingly perforated or slotted to provide the apertures f.
Patent GB-684877-A (GB)
Title: Improvements in liquid contents gauges
Inventor: MOSS ERIC BEECROFT
IPC: G01F23/26
Filed: 1950-08-18
Abstract: 684,877. Measuring liquid volumes; moving coil instruments. SMITH & SONS (ENGLAND), Ltd., S. Aug. 17, 1951 [Aug. 18, 1950], No. 20526/50. Class 37. Relates to liquid contents gauges in which condenser plates dip into the liquid and the variation in capacity is related to the height of the liquid and its dielectric constant. According to the invention, the indicator may have its zero and its sensitivity simultaneously adjustable to compensate for a change in dielectric constant. As shown in Fig. 1, the measuring condenser 3 can be connected, alternately with a standard condenser 12 having a constant height of liquid, to a gauging circuit 4, a relay 9 actuated by a manually operated plunger 22 closing contacts 23, 24 determining whether condenser 12 or 3 is in circuit. When condenser 12 is in circuit rotation of plunger 22 simultaneously adjusts tapping 20 on resistance 19 to vary the sensitivity, and adjusts the moving coil anchoring spring to set the zero to a predetermined mark, As shown in Fig. 3, knob 22 may be pressed to the left to actuate spring 49 to close the relay contacts, and engage transverse pin 35 with dogs 36 so that on rotation of knob 22 gear 37 rotates to rotate gear 39, which is coupled by a slipping clutch 41 to gear 42 to rotate wheel 43 engaging gear 44 actuating the contact 20; gear 44 is solid with gear 46 which rotates gear 47 to adjust the controlling spring 48 of the moving coil. According to the Provisional Specification, the zero adjustment may be provided by a backing off current through the moving coil or an auxiliary coil; the sensitivity adjustment may be effected by a magnetic shunt. Specification 602,960 is referred to.
Patent GB-148549-A (GB)
Title: Improvements in railway and the like turntables
IPC: B61J1/04
Filed: 1920-07-10
Abstract: 148,549. Eschweiler Bergwerks-Verein. Aug. 23, 1917, [Convention date]. Traversers and turntables.-Turntables with divided main girders have a free girder portion e<2> with plates l secured on each side of the web and provided with an open or closed eye for engagement with a bolt z carried by the other girder portion e<1> in the centre of the support o. The girder e<1> carries the support b for the ball or cylinder bearing a which is mounted on a girder q on the centre support o. A filling- plate f is also provided. Fig. 2 shows a turntable, and Fig. 4 a turntable extension. The Specification as open to inspection under Sect. 91 (3) (a) states also that Fig. 4 shows a traverser. This subject-matter does not appear in the Specification as accepted.
Patent GB-382277-A (GB)
Title: Improvements in internal combustion engines
IPC: F02B75/28
Filed: 1931-07-18
Abstract: 382,277. Force-feed lubricating. SOKAL, S., 1, Great James Street, Bedford Row, London.-(New Zealand Edlin-Stewart Engine Co., Ltd. ; Premier Buildings, Durham Street, Auckland, New Zealand.) July 18, 1931, No. 20636. [Class 12 (iii).] In an internal-combustion engine having a cylinder 2 reciprocating inside a fixed cylinder, oil mist is supplied by a pump whose plunger is formed by slippers 38 on the trunnions 6 to which the connecting- rods are attached. Channels 7a allow the mist to flow into the pump chambers.
Patent GB-581786-A (GB)
Title: Staked fasteners
IPC: F16B1/00
Filed: 1943-12-09
Abstract: 581,786. Bolting; spiked plates. RADIO CORPORATION OF AMERICA. Dec. 9, 1943, No. 20640. Convention date, Dec. in, 1942. [Classes 89 (i) and 89 (ii)] [Also in Group XXII] Bosses are secured to parts of plate-like form by means of inwardly tapering circular projections in combination with prongs for preventing rotation of the projections in the holes in the plates. The fastening is applicable to securing nuts,.bolts, screws, electric terminals, studs, &c. to a chassis, panel, or other base, particularly one of soft metal such as aluminium. The boss is of harder metal than the base. A square nut 2, Fig. 1, to be anchored to a plate 5, Fig. 3 has a central projection 6 tapering inwards at 7, and pyramidal prongs 1 at the corners with faces 9 at an angle to the surface 8 so that when the nut is pressed into the plate the prongs are caused to enter the plate in outwardly splayed form. The nut is located so that the projection 6 enters the hole in the plate, by a pin 15 in the lower die 14. After pressing, the work is reversed on the same or a similar die 14, Fig. 4 and the metal of the base is caulked by a bevelled ring 18 on a die 19 to cause flow to fill the space caused by the undercut 17. A separate caulking operation may be avoided by forming an annular projection 21, Fig. 7 on the nut so that caulking is effected thereby during the pressing-in of the prongs 1. For use in thicker plates the projection 6 is made cylindrical for part of its length.
Patent GB-1271715-A (GB)
Title: Improvements in or relating to data handling systems
IPC: G11B20/14
Filed: 1969-04-23
Abstract: 1,271,715. Digital transmission systems; coding and decoding. HONEYWELL Inc. 23 April, 1969 [21 May, 1968], No. 20775/69. Heading H4P. [Also in Division G4] A binary coding system providing self-synchronization of a receiver clock and in which at least every other data bit produces a detectable signal comprises coding three of the four possible 2-bit configurations as three unique three-bit configurations, i.e. two bits are always encoded as three bits, and codes the fourth possible twobit configuration with the next consecutive two bits preferably in a unique configuration of less than seven bits and more than three bits, e.g. six bits. The three-bit configurations are 111, 101 and 011 or 110, dependent on whether the first or last bit must be a " 1." The four-bit combinations may be coded as six bits, all of which must commence or terminate with a "1," but in an alternative arrangement some of the final l's are omitted giving some five-bit and some six-bit combinations. Data may be received in serial or parallel form and is placed in a buffer shift register " SR " 14, Fig. 1, and shifted into SR 10. Four bit positions A-D are connected through gates 17, 18, 25 and amplifiers 20 to SR 26, the inputs a-f to which are determined according to the content of SR 10 (see Table I, not shown). The output of SR 27 is shifted serially into a recording head 32 or transmission channel. SR 27 must operate at nine times the rate at which SR 14 is loaded but the operation may be simplified by dividing SR 10 into two parts respectively for odd and even bits which reduces the number of shifts. On playback or reception, read head 40, Fig. 2, detects transitions which are passed to amplifier 41 to a peak detector 42 which is connected to a conventional synchronizer 44 for clock 45, also a three-bit SR 47 which is connected in parallel through gate 48 to six-bit SR 50 giving outputs corresponding to a-f inputs to SR 26, Fig. 1. Gate 48 transfers three bits from SR 47 to positions a, b, c, of SR 50. If there is a 0 output from c, AND gate 51 passes signals from control 46, causing the next three bits to be gated to positions d, e, f. AND gates 52, 54, 55, 56 decode the pattern into an eight bit SR 57 in parallel. With an output from c " 0," SR 57 is delayed and is shifted four positions at a time; with no output from c "0," SR 57 is shifted two bits.  Serial output from SR 57 is passed in parallel to SR 58. For every nine shifts of SR 47 a sixbit character is unloaded from SR 58 in parallel. SR's 57, 58 may be split also into odd and even registers. Tables (not shown) are given in the Specification of the binary combinations employed. Some checking redundancy may be added by recognizing the five bit characters in Table IV (not shown) given in the Specification.
Patent GB-1075860-A (GB)
Title: Tape applying machine
Inventor: LARKIN CYRIL
IPC: B65B51/06
Filed: 1964-05-20
Abstract: 1,075,860. Tape applying machine. ADHESIVE TAPES Ltd. May 12, 1965 [May 20, 1964], No. 20798/64. Heading B8F. Apparatus for applying adhesive tape comprises a supply reel 28 from which tape is led to an applicator roll 10 mounted on a plate 2 movable in a straight line from the inoperative position shown to an applying position under the control of a solenoid 6. A knife 33 and a wiping roller 37 are pivotally mounted at 30 and the arrangement is such that as the plate 2 is advanced a pin 15 engaging a slot 34 withdraws the knife from its cutting position to an inoperative position. A knurled non-return roller 17 prevents retraction of the tape the end of which is held on the roll 10 by a finger 12. As articles are fed by a conveyer in the direction D a switch de-energizes the solenoid 6 so that the plate 2 projected and the knife 33 retracted and the article contacts the tape held on the roll 10. As the article advances tape is applied by the roll to and wiped by the roller 37 until a second switch re-energizes the solenoid 6 retracting the plate 2 and causing the knife 33 to cut the tape the application of which is completed by the roller 37.
Patent GB-590485-A (GB)
Title: Improvements in or relating to vulcanising moulds
IPC: B29D29/00
Filed: 1944-10-26
Abstract: 590,485. Moulding and vulcanizing reinforced rubber tracks for vehicles. FIRESTONE TIRE & RUBBER CO. Oct. 26, 1944, No. 20868 Convention date, July 8, 1943. [Class 87 (ii)] [Also in Group XXXI] A mould for use in vulcanizing an endless tread of a track-laying vehicle (e.g., " half-trac ") comprises an inner circumferential series of mould segments 29, 37, and an outer circumferential, series of mould segments 24, the tread being moulded and vulcanized between the two series. Fig. 3 is a plan and Fig. 4 an elevation. The segments 29 and 24 are movable, in a horizontal direction only, by turning screws 27, 21, but the segments 37 are movable both horizontally and vertically, being moved horizontally by turning screws 36 and being movable vertically by reason of the fact that the bearings 31 in which the screws 36 work are formed with stems 32 slidably received in boxes 33 in brackets 17 which support all the segments. The segments 37 are movable vertically because they are keying segments, and until they have been retracted radially and pulled upwardly (by hoisting mechanism) to the position shown in Fig. 4 the segments 29 cannot be fully retracted. The vulcanized tread comprises two spaced strips of rubber 41a reinforced by tensioned convolutions of wire 46 and bridged by metal inserts 47. Prior to vulcanization the 41a-46-47 assembly is built up on a mandrel comprising an endless metal ring 50 and arcuate end-to-end ring segments 51 which form part of the moulding surfaces. The mandrel, with its assembly, is then placed between the segments 24, 29, the projecting parts of the mandrel being received in grooves 60, 61 in the segments and the mandrel being positioned by dowels 59 on the segments. The segments 29 are then moved radially outwards to engage the assembly, then the segments 37 are lowered and moved radially outwards, and finally the segments 24 are moved radially inwards. Bolts may clamp the segments together more securely. The segments have steam jackets 63, 64. Excess rubber is received in a groove 65 in a segment-supporting plate 18.