baber/WOPTO huggingface dataset:
Patent GB-913246-A (GB)
Title: Improvements in or relating to current limiting systems for alternating current supply systems
Inventor: FRIEDLANDER ERICH SIEGFRIED
IPC: H02H9/02
Filed: 1959-11-23
Abstract: 913,246. Protective arrangements. GENERAL ELECTRIC CO. Ltd. Nov. 23, 1960 [Nov. 23, 1959], No. 39686/59. Class 38 (4). In a current limiting arrangement for an A.C. supply system comprising a transductor 8, 9, controlled by a saturable cement transformer 7 so that the supply cement cannot exceed the value at which the current transformer saturates, a booster transformer 6 increases the supply voltage to compensate for the voltage drop across the arrangement. An automatically controlled tapped supply transformer 2, 3, 5 may be included to provide a constant output voltage. The secondary winding of the current transformer 7 may be shunted by a magnetic amplifier, preferably of the auto-excited type, the control winding of which is energized by the difference between the output voltage and a reference voltage. In a further arrangement, two transductors each connected to a tapping on a supply transformer are employed, the excitations of these transductors being arranged differentially, so that the output voltage and supply power factor are maintained constant.
Patent GB-948533-A (GB)
Title: Improvements in or relating to collars for shirts and the like
Inventor: SNARE VICTOR
IPC: A41B3/06
Filed: 1961-11-07
Abstract: 948,533. Stiffeners for collars. SNARE & CLAYTON Ltd. Sept. 18, 1962 [Nov. 7, 1961], No. 39818/61. Heading A3V. A shirt &c. collar stiffened by fused patches 5 has an additional stiffener 1 made from polyester film encased in a seamless knitted tube 2 attached to the collar only at the ends of the tube. The stiffener 1 may be toothed to engage the tube.
Patent GB-1445851-A (GB)
Title: System for attaching one screw element to another screw element
IPC: B25B21/00
Filed: 1973-08-23
Abstract: 1445851 Torque wrenches and system for attaching fasteners G S WING 23 Aug 1973 39925/73 Heading B3N sonic or other welding energy to the wire. A system for attaching two screw elements consists of a torque wrench, a fastener element 22 comprising a pin 34 and a collar 40, and an interlinking element 23. The interlinking element and the collar have a plurality of blades for engagement by an anchor means 152 and a driver socket 154, respectively. In the preferred embodiment, Fig. 12, the collar has a nose 240 that projects into the interlinking element and is spaced radially therefrom. This allows at least 3 threads to be unaffected by compressive loading at the engaging surfaces of the element and the collar. The element may be integral with the workpiece, it may fit into a recess in the workpiece or may have internal splines that engage splines on the pin to prevent rotation therebetween. The torque wrench has a reciprocal piston 132 that operates a lever arm 145 that in turn rotates a drive-shaft 160. The lever arm can rotate the shaft 160 in either direction by the suitable selective engagement of one of selector rings 167, 168 with drive-ring 161. The interengaging teeth allow ratcheting to be effected. A trigger 71 and spool 72 control starting of the motor 80 and a regulating valve 64 controls the torque transmitted by the motor. The direction of movement of the piston is controlled by a selector valve 78, Fig. 5, which can direct fluid flow to either of ports 83, 84. Pilot valves 108, 109 are engageable by lever arm 145 and the valves are also in circuit with the selector valve to control the positioning of slide 92 and thus the flow of fluid to port 83 or 84.
Patent GB-1111003-A (GB)
Title: Electrodeposition of silver
IPC: C25D3/46
Filed: 1965-09-20
Abstract: A silver plating bath includes a soluble thiocyanate and is free of cyanide ions.  The silver salt may be sulphamate, fluoborate, nitrate, acetate, or chloride, the latter being soluble in a high concentration of KCNS which ranges 10 to 500 g.p.l.  Small amounts of a film-forming polyvinyl compound may be added; also of Bi, Sb, and Pb salts and potassium antimony tactrate. The bath is prefarably acid pH 4.5 to 7.
Patent GB-873982-A (GB)
Title: Manufacture of laminated cigarette filter tip
IPC: A24D3/06
Filed: 1957-12-24
Abstract: 873,982. Cigarette filter tips. OLIN MATHIESON CHEMICAL CORPORATION. Dec. 24, 1957 [Jan. 15, 1957], No. 40094/57. Class 130. To provide composite filter elements, comprising a double-length tube 2 and flanking filters 1 joined by a paper wrapper 3, for assembly between tobacco sections 6 in a paper wrapper 7 and subsequent halving into two recess filter-tip cigarettes, a wrapped rod of four double-length filters 1 alternating with three double-length tubes 2 has the end filters 1 trimmed to single length and is severed midway of the other filters 1. The tubes 2 may be of stiff paper or cardboard, of extruded cellulose acetate, aluminium or polyethylene, of aluminium foil convolutely wound into several layers, perhaps whilst spraying with a bonding agent, of helically-wound heavy cellulose base material, or of aluminium tubing wound from strip or formed with a crimped seam. The filters 1 may be of cellulose acetate filaments, crumpled or crinkled paper, cotton wadding or a combination of crinkled paper with carded web material. Specification 781,654 is referred to.
Patent GB-912560-A (GB)
Title: Improvements in or relating to methods of granulating moisture-containing substancesand to apparatus therefor
IPC: B28C1/18
Filed: 1960-11-23
Abstract: 912,560. Granulating in extrusion machines. ALEXANDERWERK A.G. Nov. 23, 1960 [Nov. 23, 1959], No. 40292/60. Class 87(2). In a method of granulating mositure-containing material, e.g. fertilisers or ceramic materials, the material is fed into the pinch of two rollers 3, 4 to form a sheet which adheres to roller 3 and is carried by it into the nip between roller 3 and a, hollow perforated drum 1, rotating in the same direction, so that the material is forced out of the perforations to form rod-like extrusions subsequently removed by a cutter 5. The rollers 3, 4 may be coated with a wear resistant ceramic material and the inner peripheral speed of the drum is preferably greater than the peripheral speed of roller 3 which is in turn greater than that of roller 4. The drum is rotated at constant speed, and the speed of rotation of the rollers is variable to enable the size of the granules to be varied.
Patent GB-1220348-A (GB)
Title: Laying-down table for printing plates
Inventor: GOLDSCHMIDT MORRIS
IPC: G03F9/00
Filed: 1967-07-27
Abstract: 1,220,348. Printing apparatus; lay-off tables. M. GOLDSCHMIDT. 26 July, 1968 [27 July, 1967; 4 Sept., 1967], Nos. 34633/67 and 40300/67. Heading B6C. In the imaging of lithographic plates by attaching a stencil or film, usually light sensitive, to the base substance of plate, accurate mounting of the stencil or film on the base is accomplished by the apparatus shown in Fig. 1 which comprises a light box A marked with the outlines P of various sized printing plates and a hinged cover B having holes H. The original art-work which is to form the image is accurately placed and temporarily stuck on the box A and the film, which carries the image on the eventual printing plate, is placed in position on the art-work. The cover is then lowered on to the box and the film is stuck to the underside of the cover by adhesive tape applied across the holes H. The cover is then lifted, the art-work removed from the box and replaced by the plate base. When the cover is lowered once again the adhesive tape is removed leaving the film properly located on the plate base. In a modified apparatus the film is attached to the underside of a two-armed structure functioning as the cover B by a suction device.
Patent GB-1125512-A (GB)
Title: Process for separating impurities from propane-propylene mixtures
IPC: C07C7/00
Filed: 1966-09-09
Abstract: 1,125,512. Rectification of hydrocarbon gas mixtures. LUMMUS CO. 9 Sept., 1966 [10 Sept., 1965], No. 40463/66. Heading F4P. Propane and propylene are separated from a mixture thereof containing a small amount of acetylenic and/or diolefinic impurities by feeding the mixture under pressure to the midpoint of a rectification column 12 having a steam or water heated reboiler 14, withdrawing substantially pure propylene gas through a line 15, condensing it at 16, using a portion as reflux and withdrawing the remainder as product through a line 26, withdrawing impurity-rich liquid from the mid-point of column 12 through a line 28 and passing it into a rectification column 30 having a reboiler 32, withdrawing impurity-enriched liquid propane from the base of column 30 and adding it to the liquid propane withdrawn from the base of column 12 as product; gaseous effluent from column 30 being condensed at 34, a portion being used as reflux whilst the remainder is passed through a line 46 to column 12. In a modification for the production of impurity-free liquid propane which is withdrawn from the base of the first column, the liquid bottoms from the second column is returned to the first column whilst that part of the condensed gaseous effluent from the second column and not used as reflux for this column is withdrawn as impurity-rich liquid. The impurities comprise methylacetylene and propadiene.
Patent GB-1479347-A (GB)
Title: Internal combustion engines
IPC: F01L7/10
Filed: 1974-09-17
Abstract: 1479347 Rotary valve I C engines; fuel injection pumps TYLER ROAD ASSOCIATES 17 Sept 1974 [15 Oct 1973 5 Aug 1974 6 Sept 1974] 40493/74 Headings F1A and F1B An I.C. engine has a pre-combustion chamber in a passage 121 formed in a rotary valve 120 which moves in a valve housing 128, fuel being injected into the passage 121 by an injector 130 aligned axially with a partition 116 which partially extends over the passage opening 123 when it is aligned with the injector. The valve 120 which has a water cooled hemi-spherical body 138, is rotated by gearing 156, 158 and air is drawn into the main combustion chamber 113 on the induction stroke when passage 121 is aligned with inlet port 126. During the compression stroke, opening 123 is covered by partition 116 except at a throat 129 through which air is admitted into passage 121 which communicates with the injector 130 via a slot 131. The injector incorporates a solenoid pump comprising a piston 254 sealed to the injector body 266 by a fabric or reinforced elastomer membrane 260 and controlled by coils 255, 256 to inject fuel delivered via a check-valve 274 into the combustion chamber via a check-valve 244, the piston stroke being controlled by a screw 286 and pinion gear engaged by a rack 292. After injection of fuel into passage 121, the latter aligns with a spark-plug 132, Fig. 2, which ignites the mixture, continued rotation of the valve moving passage 121 past partition 116 thereby permitting the ignited mixture to expand into main chamber 113. Subsequent alignment of passage 121 with exhaust port 134 permits the exhaustion of burnt gases from the combustion chamber 113. A thrust bearing 166 on the end of valve 120 co-operates with a cap 167, oil passing between them via a spring-biased check-valve 172. In an alternative embodiment, Fig. 6 (not shown), the rotary valve has a cylindrical body and the checkvalve 172 is omitted.
Patent GB-1162705-A (GB)
Title: Electrical Push-In Coupling
IPC: H01R13/28
Filed: 1966-09-12
Abstract: 1,162,705. Two-part couplings. WAGO KLEMMENWERK G.m.b.H. 12 Sept., 1966 [11 Sept., 1965; 19 Oct., 1965], No. 40638/66. Heading H2E. In securing together identical halves of a connector, projections at the forward end of the housing of one half engage a rear portion of the mating housing. A contact blade 12 is pushfitted into a resilient insulating sleeve 11 bifurcated at its forward end into arms 11a which are joined by rounded webs 11b and which interlock with the arms 11a of an identical sleeve 11 arranged at right-angles to it, the webs 11b of each sleeve 11 engaging lips 11d formed at the ends of the arms 11a of the mating sleeve. Each contact 12 comprises an inner rigid tab 12b and a pair of outer resilient limbs 12a which straddle the tab 12b of the mating contact. Wire connections to tabs 12d of the contacts may project from the sleeves 11, when a surrounding insulating sleeve may be provided, or may be enclosed by solder in extensions of the sleeves 11. Several contacthousing sleeves 11 may be mounted in a pair of earthed metal plates (15, Figs. 7-9, not shown) to form a multi-pole connector which is polarized either by pins or by the arrangement of its contacts.
Patent GB-998208-A (GB)
Title: Improvements in or relating to apparatus for sorting scrap metal of different qualities
IPC: C22B1/02
Filed: 1961-11-15
Abstract: 998,208. Endless conveyers. SCHLOEMANN A.G. Nov. 15, 1961 [Nov. 28, 1960], No. 40838/61. Heading B8A. [Also in Division B2] Scrap metal is fed from shears 1 to buckets 6 on a turn-table 5 by pusher members 4 carried by a belt 3, the progress of each charge of scrap being shown on an indicator 10 by a control 9 which is synchronized with the speed of the belt 3. Instead of visual signals, a recording tape and loud-speaker may be used, and may control the position of the turn-table.
Patent GB-944070-A (GB)
Title: Process and apparatus for sealing bread wrappers
IPC: B29C65/02
Filed: 1961-11-17
Abstract: 944,070. Seaming non-metallic sheet material. ST. REGIS PAPER CO. Nov. 17, 1961 [Dec. 29, 1960], No. 41211/61. Heading B5K. [Also in Division B8] The folded-over ends 12 of a thermoplastic film, e.g. polyethylene or polypropylene, wrapped around a loaf of bread 11 are heat sealed to each other and are simultaneously sealed to a paper label 13, coated with thermoplastic adhesive and placed thereover, by a heated gas blown against the outer surface of the label. The labels 13 are severed from a roll by a knife 14 and applied to the ends 12, which may be slightly preheated, by pushers 15 which may be heated. Each loaf 11 is fed by a pusher 16 carried on a continuously moving overhead endless chain between freely movable, endless belts 17, having heaters 18 between the runs thereof, to compress the ends slightly. The pusher 16 is elevated to leave the loaf 11 at a section B at which heated fingers 20 seal the bottom overlap of the wrapper and heated air supplied through conduits 24 having nozzles 25 opening between rollers 22, 23, 26 seals the label 13 to the ends 12. After one second the loaf is pushed by an oncoming loaf between compression belts 29 having heaters 31 between the runs thereof and passing around rollers 26, 30 which may have heaters therein, and passes on to a moving belt 21. An endless belt 27 passing around rollers 22, 28 protects the upper part of the wrapper ends from deflected hot air. The belts 17, 27, 29 and the vertical rollers are composed of or surfaced with polytetrafluoroethylene-covered fibreglass. In a modification, Fig. 8 (not shown), the belt 27 is replaced by a polytetrafluoroethylene - covered metal tube through which cooling water is circulated.
Patent GB-1315761-A (GB)
Title: Digital data processing systems
IPC: G06F11/10
Filed: 1971-09-06
Abstract: 1315761 Data processing systems INTERNATIONAL BUSINESS MACHINES CORP 6 Sept 1971 [23 Dec 1970] 41413/71 Heading G4A A data processor comprises an arithmetic and logic unit ALU, Fig. 1, which receives a pair of input words from registers Reg A, Reg B, and generates an output word which passes to register Reg C. Parity registers PA, PB and residue registers RA, RB store the parity and residue of the words in Rea A and Reg B. The residue registers contain the binary representation of the residue for a given modulus of the data in the corresponding register Reg A or Reg B. Preferably the modulus is 2<SP>n</SP>-1, where n is the number of bits in each byte forming the word in the registers. The processor includes units 1-30, 1-54 which predict the parity and residue of the output word from the parity and residue of the input words. The predicted parity is compared at 1-42, Fig. 4 (not shown), with the actual parity of the output word, and a unit 1-62, Figs. 6A, 6B (not shown), compares the predicted and actual residues and calculates the magnitude of the error, if any. In response to the outputs of units 1-42 and 1-62 a unit 1-24, Fig. 2 (not shown), corrects the output word if necessary and passes the correct output word to the remainder of the processor. It also indicates when an uncorrectable error occurs. The functions which the ALU can perform are Add, Subtract, Shift, AND, OR, and EXCL-OR. As described each input word consists of two 4-bits and the modulus (2<SP>n</SP>-1) is 15. The residue is formed in a "wrap around" adder which adds the two bytes and adds any carry bit generated to the lowest bit position in the result. Thus, for an input word 1001 1110 the residue is 1000 and the parity word is 10. Comparator 1-42 provides a 2-bit signal which indicates in which of the two bytes of the output word an error, if any, is present. Unit 1-62 determines not only the magnitude of the error but also whether the error magnitude must be added to or subtracted from the output word in order to correct it. Only errors occurring in a single byte are correctable, so when double errors are detected by comparator 1-42 it is arranged that no error indication is passed to correction unit 1-24, a signal indicating an uncorrectable error being generated, e.g. for the attention of the operator. The form of the parity prediction unit needed when the ALU performs the EXCL-OR and shift functions is described with reference to Fig. 8 and Figs. 9A-9C respectively (not shown). Reference is made to the duplication of equipment for predicting the parity. The residue predictor needed when the ALU performs shift and its other functions is described with reference to Figs. 12, 13 and Figs. 10, 11 respectively (not shown).
Patent GB-1222222-A (GB)
Title: Gelled bituminous cutback compositions
IPC: C08L95/00
Filed: 1968-08-30
Abstract: 1,222,222. Bituminous composition. ARMOUR INDUSTRIAL CHEMICAL CO. 30 Aug., 1968 [31 Aug., 1967], No. 41528/68. Heading C3N. [Also in Division B1] A gelled bituminous cut-back composition comprises bituminous materials (a), a solvent therefor (b), and a urea (c) produced by the in situ reaction of at least one aliphatic amine (d) and at least one aromatic or aliphatic mono- or poly-isocyanate (e). Also present may be fillers (f) or synthetic resins (g); (a) may be bitumen, natural asphalt, petroleum oil, still residues, plastic coal-tar distillation residues, petroleum pitch, petroleum resin, coumaroneindene resin or plastic-modified petroleum resin. Exemplified penetrations of (a) are 30-70; (a) may include propane-precipitated asphalt; (b) may be petroleum distillate, kerosene, fuel oil, mineral spirit, gasoline, turpentine, textile spirit, naphtha, benzene, toluene, CCl 4 , methylisobutylketone, or 2-methoxyethanol; (d) may have a C 6 -C 22  aliphatic group attached to an amine N atom, such a group may be N-normalalkyl or N-sec-alkyl, and may be branched, straight, saturated, unsaturated, cyclic, or arylalkyl, e.g. 9,10-phenylstearyl; (e) may be C 6 -C 22  aliphatic isocyanates or difunctional aromatic or aliphatic isocyanates or prepolymers thereof, e.g. toluene or hexamethylene diisocyanates or diisocyanates derived from aminostearylamine or aminomethylstearylamine; exemplified are oleil amine and cocoamine. In (c) the mole ratio amine/diisocyanate may be 2-2À8; (g) may be polyvinyl acetate, neoprene, alkyl cyclic polymer produced from the polymerisation of dienes and reactive olefins derived from high-temperature cracking of petroleum, or amorphous polypropylene. The compositions may contain by weight 90- 98% of a mixture of 30-70% (a) and 30- 70% (b), the remaining 2-10% being (c). The composition may be prepared by introducing (d) and (e) into a mixture of (a) and (b); this may be done continuously by introducing (d) and (e) into a stream of (a) and (b) proceeding to a spray nozzle. The composition may be trowelled, or applied as a stable invert emulsion obtained by adding 8-10% weight water. Penetration values of the gels are given.
Patent GB-416868-A (GB)
Abstract: 416,868. Domestic solid-fuel grates. RADIATION, Ltd., Thimble Mill Lane, Aston, Birmingham, and YATES, H. J., 15, Grosvenor Place, London. March 23, 1933, No. 8781. [Class 126.] A solid-fuel grate comprises two sets of firebars c and d extending between and forming an integral structure with a pair of end members one of the sets of bars being arranged immediately below the other and with its bars arranged one opposite each of the spaces between the bars of the other set and the upper parts of the lower set being in a plane below that containing the lower parts of the upper set.
Patent GB-976515-A (GB)
Title: A new or improved transportable container
Inventor: MACLEOD JOHN GRAEME ST JOHN
IPC: B65D6/00
Filed: 1961-11-22
Abstract: 976,515. Transporting special loads. AIRTECH Ltd. Jan. 9, 1963 [Nov. 22, 1961], No. 41807/61. Heading B7B. [Also in Division B8] A non-collapsible aluminium alloy container for the transportation of goods by aircraft comprises a floor and roof C, D side walls A, B and end walls E, F, each of which is constructed by riveting, spot-welding or adhering a corrugated stiffening sheet between two sheet metal skins bounded by edge channels. Fig. 2 shows wall A with skins 14, 15 supported by vertical channels 13 and with a corrugated sheet 16 therebetween. One or both end walls E, F are detachable by means of bolts 52 which pass through flanges 501 and end frames 40, and are sealed by a rubber strip 51. A door G, preferably of glass fibre, may be fitted in end wall F, mounted on hinges 10, 11 and sealed when closed by a rubber strip 60, Fig. 3. Strengthening transverse beams 25 of extruded aluminium alloy in floor C have sockets 27 for accommodating the spigots of a detachable running gear as described in Specification 895,689. Ducts 21 and 37 formed by recesses in the inner skins 14 and 31 respectively provide accommodation for lighting and heating cables. Corner castings 35 provide lashing and lifting points and slabs of thermal insulating material 53, Fig. 2, of foamed polystyrene, foamed polyurethane or glass wool may be introduced between the corrugations. Two containers may be attached end to end by bolts 52, as described in Specification 883,960, when the adjacent end walls have been removed.
Patent GB-1081900-A (GB)
Title: Plastic bags with apertures for dispensing contents
IPC: A61J1/00
Filed: 1964-10-14
Abstract: 1,081,900. Administering parenteral solutions. BAXTER LABORATORIES Inc. Oct. 14, 1964 [Jan. 8, 1964], No. 41987/64. Heading A5R. [Also in Division B8] A portion of a tearable sheet of plastics material covering a sterile port 12 (Fig. 3) in a plastics bag 10 is removeable by a tab 18. In the form shown the Tab 18 comprises a thicker sheet of plastics material secured at 17 by heat sealing, di-electric sealing, ultrasonic sealing or glueing to the first sheet 14. Preferably polyvinylchloride resin is used for both the bag and the sheets. The bag may be suspended by a hole in its top closure. More than one port may be included and the bag may contain a parenteral solution administration set.
Patent GB-1439558-A (GB)
Title: Process for production of 2-pyrrolidone
IPC: B01J23/00
Filed: 1974-09-27
Abstract: 1439558 2-Pyrrolidone MITSUBISHI PETROCHEMICAL CO Ltd 27 Sept 1974 [28 Sept 1973] 42034/74 Heading C2C [Also in Division B1] 2-Pyrrolidone is made by reacting maleic  fumaric or succinic acid, or a mono- or diamide, imide, mono- or diammonium salt, or monoamide-monoammonium salt thereof or maleic or succinic anhydride with ammonia or a source thereof and hydrogen in the presence of a catalyst comprising Ni and Re and/or Mo. Where the starting material is an amide, imide or ammonium salt it acts as its own ammonium source and a further source of ammonia is not required. Other suitable ammonia sources include ammonium salts.