baber/WOPTO huggingface dataset:
Patent GB-509742-A (GB)
Title: Improvements in and relating to moulded glass articles and methods of making the same
IPC: C03C1/00
Filed: 1938-12-19
Abstract: 509,742. Glass manufacture; mercury switches. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 19, 1938, No. 36938. Convention date, Dec. 21, 1937. [Class 56] [Also in Group XXXVII] A method of making a pressed glass article consists in mixing powdered glass of two different compositions and different fusion temperatures, compressing the mixture to the shape of the article desired, and then fixing the pressed article at a temperature between the fusion temperatures of the' two glasses. The glass with the higher fusion temperature remains substantially unfused and is agglomerated by the fused particles of the other glass. The glass with the higher fusion temperature may be composed of 72.6 per cent. of Si O2, 17.20 per cent. of Na2 O, 0.82 per cent. of Al2 O3, 5.32 per cent. of CaO, 3.58 per cent. of MgO, and 0.48 per cent. of H2O. The softer glass may be composed of 30.0 per cent. of Si O2, 53.0 per cent. of PbO, 11.0 per cent. of B2O3, 5.0 per cent. of Na2O, and 1.0 per cent. of CaO. The process may be used for making such articles as ash trays, or the insulation button in electric lamp bases. It is also suitable for the insulation disc 18 of a mercury switch in which two metal cup shaped members 16 are embedded at their rims in the glass of the disc. A passage 19 in the disc allows the mercury to complete the circuit when the switch is rotated to the closed position.
Patent GB-990665-A (GB)
Title: Source of radiation for measuring purposes
Inventor: SIERING RICHARD
IPC: G21K1/02
Filed: 1963-09-23
Abstract: 990,665. Shielded containers for radio-active material. PHYWE A.G. Sept. 23, 1963, No. 37252/63. Heading B4Q. [Also in Division H5] A radiation source for school use comprises interfitting cylinders 1, 4 of shielding material, the cylinder 1 carrying a radio-active preparation 2 and the cylinder 4 having a handle 5 and serving as a protective cover when it is not required to use the preparation 2.
Patent GB-1503468-A (GB)
Title: Gasification of ash containing carbonaceous solids
IPC: B01J8/24
Filed: 1976-09-08
Abstract: 1503468 Gasification of ash-containing carbonaceous solids FMC CORP 8 Sept 1976 [17 March 1976] 37260/76 Heading C5E In a process for the gasification of ash-containing carbon (e.g. char) with steam in a fluidized bed gasifier in which carbon fines which have been separated from the gas produced are burned in a slagging combustor, the resulting combustion gases being used to disperse and heat a recycle stream of carbon from the gasifier, the heated recycle stream being returned to the gasifier to provide heat for the gasification reaction, the build-up of ash in the gasifier is controlled by the steps of (a) withdrawing a further or second stream of char from the gasifier bed, (b) separating this stream into an ash-rich portion and an ash-poor portion, (c) feeding the ash-rich portion into the combustor to be burned with the fines, and (d) feeding the ash-poor portion into the gasifier, the second stream being withdrawn at a rate sufficiently high that as much ash is removed from the gasifier as is introduced as fresh feed.
Patent GB-341649-A (GB)
Title: Improvements in metal casting processes
IPC: B22D23/06
Filed: 1929-12-05
Abstract: 341,649. Casting. CRONING, J., 25, Schõferkampsallee, Hamburg, Germany. Dec. 5, 1929, No. 37348. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 18, 1929.] [Class 83 (i).] Casting processes ; electricity, h e a t i n g by.-A non-metallic mould a, Fig. 4, has its cavity g and its dead head h filled with pieces of metal and is then placed in an alternating electromagnetic field of high frequency to melt the metal which thus fills the mould cavity completely. The field is formed by an electric current passing through a coiled, water-cooled, copper pipe d, Fig. 1, and the current may be reduced when the metal is molten so as to solidify at any desired speed. If desired moulds a may be passed axially through a coil or coils d by a conveyer b &c. The process may be carried out in a deoxidizing or neutral atmosphere. Moulds ; mould and core materials.-The moulds may be of ceramic, graphitic, or like material and in two or more parts and the cores may be of sand. The middle portion B, Fig. 5, of the moulds may be reduced to ensure that it cools as quickly as the ends A.
Patent GB-823997-A (GB)
Title: Improvements in or relating to pedals for cycles
IPC: B62M3/08
Filed: 1955-12-30
Abstract: 823,997. Making cycle pedals. LOO, H. VAN DE, and DREISER, O., [trading as UNION SILS, VAN DE LOO & CO.]. Dec. 30, 1955 [Jan. 22, 1955], No. 37358/55. Class 83 (2). A method of making a cycle pedal having a sleeve bearing 3 provided with two webs 1 and 2 on which are mounted two supporting brackets 5 and 6 for rubber blocks 7 is characterized in that the webs are each made from a sheet metal blank provided with a slot said slot being enlarged or widened to receive the sleeve bearing. The supporting brackets are detachably mounted on the rear web 2 by means of a key 8. The webs are manufactured from a metal blank 9 provided with a slot 10 (Fig. 3), and the longitudinal edges of the blank are flanged and the slot enlarged with a pointed mandrel to produce a web as shown in Fig. 4. In a modification (Figs. 5 and 8) the two supporting brackets 11 and 12 are formed integral with the front web 13 to form a pedal as shown in Fig. 5.
Patent GB-449765-A (GB)
Title: Improvements in and relating to steam separators for high pressure steam power plants
IPC: F01B17/04
Filed: 1934-12-31
Abstract: 449,765. Steam separators ; steam turbines. WITKOWITZER BERGBAUUND EISENHUTTEN-GEWERKSCHAFT, and ROCHEL, K., 10, Mahrischostrau, Vitkovice-zelezarny, Czecho Slovakia. Dec. 3], 1934, No. 37428. Convention date, Dec. 30, 1933. [Class 123 (iii)] [See also Group XXVI] Steam is supplied to a stage III of final expansion in a high pressure steam power plant, through a conduit 2, in which is arranged a grating of sheet metal strips 3, forwardly and downwardly inclined with the lower edge of each strip lying under the strip following it in the direction of steam flow. The steam is thus sharply deflected to pass rearwardly and upwardly between the strips in a number of separate layers whilst the separated water flows downwardly on the inlet side of the grating and passes through a sieve 6 into a vat 5 and thence through a pipe into a condenser 9 or a preheater in which a reduced pressure exists. Modifications provide two or more gratings either in series, or in parallel with one grating and collecting vat arranged over the other.
Patent GB-1417227-A (GB)
Title: Two-stroke internal combustion engine
IPC: F01M11/00
Filed: 1973-08-09
Abstract: 1417227 Two-stroke engines BRUNSWICK CORP 9 Aug 1973 [14 Aug 1972] 37804/73 Heading F1B Petrol and oil mixture collecting in one of the crank-chambers 23 of the crank-case 21 is delivered to one of the crank-shaft bearings 25, the arrangement being such that the proportion of the collected mixture flowing to the bearing increases with increase in engine speed. The conduits 30 and 32 connected to the crank-chamber 23 and bearing cover 39 respectively are connected by a fitting 31 having a passage 37 opening to the transfer passage 28 from the other crank-chamber 21 to the associated cylinder 12. The diameters of the passages 33, 35, 37 and a passage (40), Fig. 5 (not shown), in a pipe (38) connecting the conduit 36 to the cover 39 are such that with the pressure changes which occur in the passage 28 and the chamber 23 all or most of the collected mixture flows into the passage 28 when the engine is idling and as the engine speed increases an increasing proportion flows to the bearing 25. In an engine with vertical cylinders the crank-case is arranged so that petrol and oil mixture collects in one crankcase chamber and is used to lubricate a bearing or bearings not associated with the one chamber.
Patent GB-1061757-A (GB)
Title: Telephone call transmitter
IPC: H04M1/276
Filed: 1963-09-26
Abstract: 1,061,757. Subscribers' number senders. WESTERN ELECTRIC CO. Inc. Sept. 26, 1963 [Oct. 5, 1962], No. 37885/63. Heading H4K. A key-operated multifrequency sender of the kind described in Specifications 964,335 and 972,295 is adapted for repertory dialling, that is, the sending of certain numbers in response to a single setting operation, by the provision of a magnetic drum which bears records indicative of those numbers and which, when a selected record is scanned, controls the multifrequency oscillator in the same way as the digit keys. The records are arranged longitudinally on the drum, and to bring a particular record into operative position the drum is rotated by a knob 6 until an appropriate name plate appears between bars 5. Co-operating with the drum are four magnetic heads which are moved along the drum for each recording or playback operation. To record a number, the drum is positioned, and the record key 10 is pressed, followed by the appropriate digit keys 7. The magnetic heads are energized in pairs to produce patches of negative or reverse magnetization which form 4-bit code groups. The heads are returned to the initial position without erasure of the record by actuation of the reset key 9 or by lifting of the handset. To record and send simultaneously, the handset is lifted and the dial and record key 11 is pressed. Recording takes place as before, and multifrequeney signals are sent from the oscillator as in the Specifications mentioned above. To send a recorded number, after the handset is lifted, the call bar 12 is pressed, and the magnetic heads traversing the selected-record operate relays in pairs to control the oscillator in the same way as the digit keys 7. In the case of a " split " number, where a caller is required to await a second dial tone after sending a prefix, a dial tone key 8 is pressed after the prefix to record a distinctive mark, and, in playback, this effects the operation of a relay which stops the scanning movement of the magnetic heads until the call bar 12 is pressed again after the caller has heard the second dial tone.
Patent GB-1241165-A (GB)
Title: Textile treating compositions
Inventor: AGNEN WILLIAM
IPC: C08L63/02
Filed: 1967-08-17
Abstract: 1,241,165. Treating textiles. IMPERIAL CHEMICAL INDUSTRIES Ltd. 9 Aug., 1968 [17 Aug., 1967], No. 37885/67. Heading DIP. [Also in Division C3] A composition for imparting water-repellency and a permanent press finish to textiles comprises 100 parts by weight (pbw) of organopolysiloxane containing 0.25-1 Sibound H atoms per Si atom, 200-500 pbw of an aminoplast resin, 20-50 pbw of a metal salt curing catalyst and 15-30 pbw of the reaction product of a diphenylolalkane/ epichlorhydrine epoxy resin with a polyamine, in proportions providing 0.1-0.5 epoxy groups per active hydrogen atom in the polyamine. Suitable aminoplast resins include methylol derivatives of dihydroxyethyleneurea, ethyl carbamate, hexahydropyrimidone, and ethyltriazone. Suitable salts include Zn(NO 3 ) 2  and MgCl 2 . Suitable polyamines include diethylene triamine, triethylene tetramine, tetraethylene pentamine, dipropylene triamine, tripropylene tetramine and N:N-bis(3-aminopropyl)-methylamine. In Example 1 an aqueous composition is prepared containing an emulsion of a trimethylsilyl ended polydimethylsiloxane and a trimethylsilyl ended polymethylhydrogensiloxane, dimethylol dihydroxyethyleneurea, a dispersion of the reaction product of a bisphenol A/epichlorhydrin epoxy resin and diethylene triamine, and 2n(NO 3 ) 2 . Examples 2-5 are closely similar. Cotton or cotton-polyester fabrics are treated.
Patent GB-339790-A (GB)
Title: Improvements in or relating to toy pistols
IPC: F41C3/08
Filed: 1929-12-10
Abstract: 339,790. B³rk, C. Feb. 6, 1939, [Convention date]. Pistols.-A toy pistol for firing rolled strips of caps has a chamber for the reception of a roll 5, the bore of the chamber being shaped approximately to conform to the shape of the roll and being surrounded by an enclosed passage 13 through which the free end of the strip is led to the firing plate 7. Access to the chamber is obtained through a slot 6 in the barrel. The pistol is provided with the usual hammer 8 and feed-member 12, both operated by the trigger 9.
Patent GB-1387085-A (GB)
Title: Dishwashing machine
IPC: A47L15/42
Filed: 1973-08-13
Abstract: 1387085 Dishwashing machines G BAUKNECHT GmbH ELEKTROTECHNISCHE FABRIKEN 13 Aug 1973 [11 Aug 1972] 38298/73 Heading A4F The level of washing liquid in the washing chamber 1 of a dishwashing machine is monitored by a measuring instrument 12 connected by a pipe 10 to an air bell 11 which projects downwardly through a wall 13 into an outlet chamber 6 leading to a drain pump (not shown), the wall 13 and a filter 9 separating the outlet chamber 6 from a sump 3 for collecting washing liquid for delivery to a circulating pump 5. The filter 9 is formed as a funnel integral with a filter 8 separating the washing chamber 1 and the sump 3. Dirt particles collected by the filter 8 are washed through the funnel 9 into the chamber 6 and accumulated there until the drain pump is operated. The measuring instrument 12 may directly measure the liquid level or may measure the pressure of air enclosed in the pipe 10 above the liquid column therein. The separation of the chamber 6 from the washing chamber 1 minimizes the effects on the measuring instrument of fluctuations in liquid level in the chamber I during the washing operation.
Patent GB-1445623-A (GB)
Title: Agricultural implements with coupling frames gaskets for plate heat excha g
IPC: A01D34/24
Filed: 1973-08-13
Abstract: 1445623 Coupling implements to three point tractor linkage: coupling mowers to tractors P W ZWEEGERS 13 Aug 1973 [14 Aug 1972] 38307/73 Headings A1F and A1P An agricultural implement is coupled to the arms of a three point linkage 4, 5, of a tractor by means of an upwardly directed pin 1 and relatively short and long connecting arms 2, 3, which are pivoted to the three point linkage arms and fixed to the pin. The pin 1 has bearings 11, 12 which carry horizontal pivot pins which allow the implement, e.g. a mower, to be manually pivoted from an upward and rearwardly extending transport position to a sideways and upwardly extending position in readiness for lowering to the working position by the three point linkage. The arms 2, 3, are such that when the linkage is operated to lift the implement the pin 1 moves from a rearwardly inclined position, Fig. 2, to an upright position, Fig. 1, which allows safe manual pivoting of the implement from the raised, sidewards position since the weight of the implement does not act against the operator. Once the implement is raised the linkage 6-10 acts as a unitary rigid link. Two upper short arms 2 may be coupled to a single arm 4.
Patent GB-935257-A (GB)
Title: Improvements relating to hydraulic prop assemblies
Inventor: BARRETT WESLEY HORACE
IPC: E21D15/51
Filed: 1960-11-09
Abstract: 935,257. Hydraulic pit props. DOWTY MINING EQUIPMENT Ltd. Nov. 13, 1961 [Nov. 9, 1960], No. 38430/60. Class 20 (2). In an hydraulic pit prop comprising at least three telescopic portions 1, 5, 9, the intermediate portion 5 is provided with a partition 6 and a seal 7 separating two pressure chambers 18, 19 communicating through a check valve 17 and an auxiliary relief valve 24 in series with a main relief valve 4, the two valves 4, 24, being equated to ensure uniform yielding of the prop portions.
Patent GB-1018214-A (GB)
Title: Improvements relating to drives for rotating members
Inventor: WOODCOCK RAYMOND
IPC: F16H33/02
Filed: 1963-10-01
Abstract: 1,018,214. Spring power storing mechanism; controlling clutches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 14, 1964 [Oct. 1, 1963], No. 38642/63. Headings F2L and F2S. A rotary drive comprises a rotary member 1, e.g. a spool for a tape or film, journalled in a supporting structure 4 and a driving means including a motor drive roller 5 mounted on a bell crank lever 6 one end of which is initially held by a catch abutment 8 to withhold the roller 5 from the member 1. An initial starting torque is given to the member by a spring- pressed arm 9 on which is provided a catch which includes two pivotally connected arms 17, 18 biased apart by a spring 21, the catch being pivotally mounted on the arm 9 by a pin. The arm is retracted against a stop 14 by a cable 13 wound on an electromagnetically operated pawl and ratchet winch (Fig. 3, not shown). The distance of travel of the arm 9 is determined by the position of the stop on a slide 15. An abutment 16 of the member 1 is held by the arm 17 which is held in its elevated position by the spring 21 and the arm 18 which is clamped between the stop 14 and a pin 30. On rotation of the arm 9 the arm 17 falls away from the abutment 16 due to the disengagement of arm 18 with stop 14. At the end of its travel arm 9 disengages catch abutment 8 from the driving means.
Patent GB-386945-A (GB)
Abstract: 386,945. Two-stroke engines . GRANZELIUS, K.A.T., 4, Karduansmakaregatan, Stockholm. April 18, 1931, No. 11552. Convention date, June 4, 1930. Void [Published under Sect. 91 of the Acts]. [Class 7 (ii).] A piston 7 in the upper part of the cylinder is driven down by a cam 9 to expel the products through the terminal exhaust ports 17 and to draw in a fresh charge through the valve 14. On the up-stroke of the piston 7 this charge is compressed and delivered to the combustion chamber through the valve 13 in the piston. The openings 12 in the piston are arranged obliquely to cause whirl of the charge as it enters the combustion chamber. When air is drawn into the cylinder through the valve 14 fuel is injected into the pump chamber to ensure mixing.
Patent GB-338408-A (GB)
Title: Improved construction of coupling for connecting tubes together
IPC: E04G7/20
Filed: 1929-12-19
Abstract: 338,408. Hingley, T. P. Dec. 19, 1929. Rod couplings.-Coupling means for joining tubes in axial alignment of the type comprising a central spigot entering the ends of both tubes which abut against the surfaces of a ring on the spigot, and an external clamp surrounding the ends of the tubes, have a recess provided in the clamping member to receive and hold the ring which is of larger diameter than the tubes being joined. The clamping member is formed of an embracing element A with hinged clamping elements G one for each tube the clamping element A being provided with a groove D to receive a ring E integral with or fixed to a spigot E<1> the ends of the tubes C abutting against the top and bottom surfaces of the ring. Each tube may be released separately the clamp retaining the ring and spigot and so preventing accidents due to their accidental displacement from the tube ends.
Patent GB-1106400-A (GB)
Title: Compressed-gas circuit interrupter
IPC: H01H33/86
Filed: 1966-09-01
Abstract: 1,106,400. Gas blast switches. WESTING- HOUSE ELECTRIC CORPORATION. 1 Sept., 1966 [22 Sept., 1965], No. 38994/66. Heading H1N. The contacts 31, 33 of a circuit-breaker are immersed in gas at relatively high pressure in a metal tank 14 mounted upon an insulator 15, a downstream blast valve 26 being located between the tank and the insulator so that during an interruption a stream of gas passes from the tank 14 through the hollow movable contact 33 and then through the valve 26 into the hollow insulator 15. The gas is sulphur hexafluoride (SF 6 ) and is pumped from the insulator, compressed and returned to the tank 14. The circuit-breaker is operated by an hydraulic cylinder (70) (Fig. 4, not shown) through a crank 41 and links 39. As shown two movable contacts 34, 34a are connected in series by a spring-urged bridge 35 engaging with the contacts adjacent their pivots 38. The blast valve 26 is coupled to the crank 41 by a pawl and ratchet coupling 49, 48 which is disengaged by a pin 59 when the contacts reach the open position so that the blast valve recloses. Several of the units shown may be connected in series (Fig. 1, not shown).
Patent GB-1008726-A (GB)
Title: A gear pump
IPC: F04C2/14
Filed: 1962-10-16
Abstract: 1,008,726. Gear pumps. M. TUROLLA. Oct. 16, 1962 [Nov. 6, 1961; Nov. 23, 1961], No. 39074/62. Heading F1F. A gear pump comprises gears 8, 9 (Fig. 3) having journals 108, 109 carried by pairs of bearing bushes 41 which are prevented from rotating by annular keys 42 lodged between flat faces 141, a pressure-loading chamber 21 communicating with a fluid-discharge duct 5 (Fig 2), through a passage 122, and a sealing ring 44 on a cylindrical carrier-member 43 residing in a bore adjacent chamber 21 to prevent high pressure fluid entering a fluidintake duct 4.
Patent GB-1274049-A (GB)
Title: Optical system for viewing an object located out of the direct line of sight of an observer
Inventor: TOY WILLIAM WAYNE
IPC: G02B23/08
Filed: 1969-08-05
Abstract: 1,274,049. Rear view mirror devices. W. W. TOY. 5 Aug., 1969 [29 Nov., 1968], No. 39105/69. Heading B7J. [Also in Divisions F4, G2 and G4] An optical system for viewing an object located out of direct line of sight of an observer, comprises first means having beam splitter surface 11 which reflects light, forwardly to a second means 12, also having a reflective surface and then rearwardly through first means 11 to the eye of the observer. The system may be set in a housing 20 in a vehicle roof 16, a first elevated mirror 10 being supported on a projecting assembly 15. In order to accommodate different observer levels, the planar mirror 12 which may be in two parts is angularly adjustable within the housing 20 by means of a roller 36 having gear teeth 39 which mesh with a curved rack; the mirror is also releasably held against the vertical side of the housing 20 by a tension spring (not shown). A mask (43) Fig. 4 (not shown) may be provided to prevent ghost images being projected on to the mirrors 11 and 12. In use the optical system may be protected by means of a glass plate 24 which hermetically seals the housing 20 or alternatively by a transparent hood which covers the whole of the rear open facing and part of the front facing of the assembly 15. In a modification, signalling lights 45 may be introduced such that light emanating therefrom is visible to the rear of the vehicle. A light transmission of about 15% is achieved for the system overall.