baber/WOPTO huggingface dataset:
Patent GB-1012510-A (GB)
Title: Machine for manufacturing filled and sealed packing bags
IPC: B65B9/213
Filed: 1963-11-27
Abstract: 1,012,510. Packaging-machines. O. RIST. Nov. 27, 1963 [Dec. 1, 1962], No. 46887/63. Heading B8C. In a machine for manufacturing filled and sealed rectangularbottomed bags, a tube 8 (Fig. 1) is formed by feeding a foil web 1 over a shaping shoulder 6 and welding together the edges of the web, a W-fold is effected diametrically opposite the longitudinal weld by guide rails 10<SP>1</SP> (Figs. 3 and 4) and a folding bar 15 after which the tube is sealed transversely by welding jaws 18, contents are introduced into the partially formed bag through a filling tube 9 and the transverse seal is simultaneously contacted, upon opening of the jaws 18, by vertically movable cooling and severing jaws 19 which draw the partially formed bag downwardly. The operation is then repeated to form individually filled bags 25. The longitudinal weld is formed during each stationary period of the tube. The filling tube 9 can be rotatably adjusted in order that the longitudinal weld 22 shall slide over a member 12 and so that the member shall be parallel to the jaws 18. The shaping shoulder may be rotated through a right-angle relative to the filling tube and jaws such that the longitudinal tube weld is disposed at the side of the filling tube so that a second pair of guide rails and a second bar may be provided to form bags having diametrically opposite W-folds. Instead of the jaws 19 being vertically movable, the jaws 18 may be vertically movable and may therefore perform the function of drawing the tube downwardly. During each stationary period of the web 1, a tear-strip or tear string is attached thereto.
Patent GB-1154919-A (GB)
Title: Supply System for Motors
IPC: H02M5/00
Filed: 1966-10-20
Abstract: 1,154,919. Converting. BROWN, BOVEBI & CO. Ltd. 20 Oct., 1966 [22 Oct., 1965], No. 46997/66. Addition to 1,108,571. Heading H2F. The converter system of Specification 1.108,571, is modified for connecting to a polyphase A.C. supply by providing three switching circuits, the control signals to which are phase displaced by 120 degrees.
Patent GB-1246397-A (GB)
Title: Cupolas
IPC: F27B1/00
Filed: 1969-09-25
Abstract: 1,246,397. Cupolas. MIFUJI IRON WORKS CO. Ltd. 25 Sept., 1969 [4 June, 1969], No. 47199/69. Heading F4B. [Also in Division C7] A cupola for melting pig-iron which comprises a lower portion 1, a middle portion 2 and an upper portion 3, includes liquid fuel combustion chambers 5 located as in Fig. 1, such that hot gases generated therefrom come into contact with red hot coke 19 contained below the chambers 5 and in the main body of the cupola, and are decomposed into high temperature H 2 ; Co, and N 2  gas, to form mixtures of non-oxidizing high temperature gases which are blown further through the cupola to melt the metal and flux introduced through the charging mouth 13.
Patent GB-473526-A (GB)
Abstract: 473,526. Interrupters. BOSCH AKT.- GES., R. March 10, 1937, No. 6993. Convention date, March 10, 1936. [Class 38 (v)] In an ignition interrupter of the type having a rotating cam and a stationary base plate, the interrupter being adjustable by mounting the interrupter lever on a plate which is adjustable relatively to the base plate, the supporting plate is guided during its adjustment by a resilient member which bears against a stop concentric with the axis of the shaft or cam of the interrupter and by a stop or stops against which the plate is pressed by the resilient member. As shown in Fig. 1, the latter of a pair of interrupters a, b is carried by a plate d adapted to be adjusted in relation to a stationary base-plate a. The plate d is formed with a springy projection h which bears against an upstanding flange g of the plate c the outer edge of the plate d being formed with projections which bear against an external flange e. The plates c, d are secured together by screws i which pass through slots k in the plate d wide enough to permit the desired amount of angular adjustment of the plate d. To facilitate such adjustment the plate d is provided with a recess i and the plate c with a hole p into which a tool can be inserted and engage the recess. In an alternative construction, Figs. 4-6 (not shown) bolts attached to the adjustable interrupter plate pass to the rear of the plate c where they are engaged by a U-shaped spring member bearing against the flange g.
Patent GB-1180173-A (GB)
Title: Friction Welding Machine
IPC: B23Q1/01
Filed: 1968-10-07
Abstract: 1,180,173. Friction welding. CATERPILLAR TRACTOR CO. 7 Oct., 1968 [24 Oct., 1967], No. 47497/68. Heading B3R. A friction welding machine includes a first assembly comprising a guide and support block 30 mounted in alignment with a tailstock 42, for holding a first workpiece to be welded, and a second assembly comprising a carrier 32 supported by and slidable longitudinally with respect to said first assembly and having means for holding a second workpiece to be welded, the slidable connection between said assemblies being constituted by longitudinal substantially rectangular-shaped cross-section projections on each side of one assembly and complementary mating slots on the other assembly. The carrier 32 may have longitudinal projections 65, 67 of substantially rectangular cross-section, and the guide and support block 30 may have complementary slots. The lower surfaces of the slots may be constituted by hardened metal ways 71, 73 and either one or both sides of the slots may be provided with a hardened way 75 or an adjustable tapered gib 77. Adjustable tapered top gibs 79, 81 may be provided. The adjustable gibs permit compensation for wear of the sliding surfaces of the carrier 32. Surfaces of the slots may be provided with channels (83, 85), (Fig. 3, not shown) for oil. The tailstock 42 carries a fixed, not rotatable chuck 40, and for long workpieces a second chuck 44. In a modification, the carrier and support block mount a non-rotating workpiece which is axially moved towards an axially fixed, rotating workpiece. The projections 65, 67 may be located centrally of a work centre-line or point 69.
Patent GB-1019387-A (GB)
Title: Electrical sensing apparatus
Inventor: VEMURA MIKIO
IPC: G01V3/10
Filed: 1962-12-17
Abstract: 1,019,387. Presence detecting apparatus. TATEISI DENKI KABUSHIKI KAISHA. Dec. 17, 1962, No. 47583/62. Heading G1N. In a proximity sensing apparatus comprising a transistor oscillator having two resonant circuits 12, 25 one 12 of which constitutes the tank circuit and the other 25 of which contains the sensing element which may be the inductance or capacitor and is included in the oscillator feedback path to serve as a variable impedance which in the absence or presence of a metallic or non- metallic object A being sensed permits or prevents oscillation. The resonant frequency of the circuit 25 may be above or below that of the tank circuit according to which of the components is used for sensing purposes. The circuit may be employed to detect the presence or absence of single objects or of each and everyone of a plurality of objects, the sensing element being split into a series of element for the latter purpose. The circuit is described with reference to a Hartley transistor oscillator in which the feedback path is completed by a capacitor 22 which may be the distributed capacity of a cable. The output from the oscillator is applied to a "NOT" gate 30 and thence to a load 44, which may be a relay, through a wave shaping circuit including transistors 36, 37. Two NOT gates may be provided to give reverse operations. A circuit including a two stage transistor amplifier having a variable resistor across the emitters for control of sensitivity is described with reference to Fig. 3 (not shown). Sensing the level of powder, grain or liquid is referred to.
Patent GB-1300476-A (GB)
Title: Polyurethane foam
IPC: C08G18/76
Filed: 1970-10-07
Abstract: 1300476 Polyurethane foam JEFFERSON CHEMICAL CO Inc 7 Oct 1970 [10 Oct 1969] 47783/70 Heading C3R Polyurethane foams having an integral polyurethane skin may be prepared by reacting in the presence of a blowing agent and a catalyst for the reaction (a) a polymeric polyisocyanate of the formula wherein n has an average value of 0À2 to 1À5, and (b) a polyol component comprising (1) 75 to 90 weight per cent of a polyether having an equivalent weight of 1000 to 2300 and from 5 to 90% primary hydroxyl groups, and (2) 10 to 25 weight per cent ofN-(2-hydroxy-ethyl)- 2-hydroxyethylcarbamate, the overall isocyanate index being 1À05 to 1À45, the reaction being carried out in a closed mould filled with a quantity of reactants which if allowed to foam in the mould, when open, would at least fill the mould after foaming. Polyether triols are the preferred polyethers. Metallic salts and/or tertiary amines may be used as catalysts. The mould is suitably preheated before pouring in the reaction mixture. In a typical example a mixture is prepared of a polyether triol of M.W. 6500, 2-hydroxyethyl 2-hydroxyethyl carbamate, dibutyltindilaurate, trimethylaminoethylpiperazine, trichlorofluoromethane and a commercial polymeric polyisocyanate and poured into an aluminium mould preheated to 120‹ F. to form a foam having a good skin. Uses.-Moulded parts, e.g. crashpads, arm rests, A-posts and horn buttons for use in the automobile industries.
Patent GB-1285733-A (GB)
Title: Improvements in automatic pressure equilibrating valves
Inventor: LHOTELLIER PHILIPPE
IPC: F16K17/196
Filed: 1969-09-29
Abstract: 1285733 Valves ETABS L'HOTELLIER 29 Sept 1969 47855/69 Heading F2V A combined pressure and vacuum relief valve for use in a fluidtight package or container comprises a cylindrical sleeve 1 secured to the wall of the container, a cylinder 3 coaxially fitted in the sleeve and adapted to move longitudinally against the pressure of a coil spring 4 urging it against a yielding annular packing 9, and a member 12 urged by a further spring 13 against another annular packing 17. The packings 9 and 17 are of silicone elastomer and the springs 4 and 13 abut members 5 and 14 secured by circlips 6 and 15. The container may lie above or below the wall.
Patent GB-1382000-A (GB)
Title: Cycloaliphatic ketones
IPC: A23L27/29
Filed: 1973-10-17
Abstract: 1382000 Flavourings L GIVAUDAN & CIE SA 17 Oct 1973 [17 Oct 1972] 48385/73 Heading A2B [Also in Divisions A5 and C2] Foodstuffs are flavoured with a compound of the formula: where R is H or acetyl and the broken lines denote a double-bond in the 2- or 3-position or double-bonds in each of the 2- and 4-positions.
Patent GB-1083300-A (GB)
Title: Improvements in or relating to bricks, building blocks and like structural elements
IPC: F16C3/02
Filed: 1965-11-16
Abstract: 1,083,300. Building blocks. H. NEUMANN. Nov. 16, 1965 [Nov. 21, 1964], No. 48671/65. Heading E1B. A brick having a rectangular horizontal cross-section composed of two adjacent squares has upper and lower surfaces which correspond to one another for inter-locking purposes and each consists of four triangular surfaces relatively inclined to the horizontal whereby the points 1, 2 and 3 'marked in the drawing shown are disposed in a common horizontal plane superimposed above a like plane including the points 4, 5 and 6. The vertical lateral faces of the brick have the same length and the arrangement is thereby such that a series of bricks can be superimposed on one another without permitting relative movement on a horizontal plane. The bricks may be apertured, see Figs. 2B and 3 (not shown) for the reception of concrete and reinforcing means. For structures made up from such bricks. Figs. 4-6B (not shown), should be referred to.
Patent GB-1286257-A (GB)
Title: Improvements in or relating to the preparation of materials of the general type comprising mixed oxides
Inventor: GRIMES JOHN HERBERT
IPC: B01J13/00
Filed: 1968-10-14
Abstract: 1286257 Mixed oxides UNITED KINGDOM ATOMIC ENERGY AUTHORITY 8 Oct 1969 [14 Oct 1968] 48692/68 Heading C1A Mixed oxides are formed by contacting gel particles containing a metal oxide or a metal compound decomposable to a metal oxide and an agent for imparting the property of gelling in the presence of a precipitating agent with a solution of a soluble compound of at least one other metal, the compound being decomposable to produce the oxide, and heating the gel particles to produce mixed oxide particles. The gel particles may be zirconia, contacted with uranyl nitrate; or thoria contacted with copper sulphate or nickel nitrate. After contact, the second metal may be fixed by contact with a base.
Patent GB-981706-A (GB)
Title: Improvements in or relating to the manufacture of granite patterned bodies, particularly flooring tiles
Inventor: VARMING VILHELM HENRICK
IPC: B29C59/02
Filed: 1963-12-10
Abstract: Flooring tiles are made by mixing differently coloured granulates of vinyl synthetic resin under heat and pressure, forming the mass so produced into a mat having a thickness equal to two or more of the tiles, dividing the mat while still warm into slices each of which is the thickness of a tile, and subjecting each slice to a pressing operation.  In an example, a composition comprising 100 parts of vinyl synthetic resin, 35 parts of a softener, 185 parts of a filler such as chalk and asbestos, and 4 parts of blue pigment, is gelatinised in a kneading machine at 170 DEG C. and is then crushed to a granulate having a grain size from 0 to 15 mm.  The granulate is mixed in a mould with a similar granulate containing white pigment. The depth of the mould may vary from 4 to 30 mm, and the surface area may be 700 x 1000 mm.  The granulates are then subjected to heat and pressure, e.g. 160 DEG C. and 50 kg per sq. cm. The mat so obtained is divided, while warm, on a band saw into sheets 2 mm thick.  The sheets are subjected to pressure and are then stamped into flooring elements of any desired size and shape.
Patent GB-1279886-A (GB)
Title: Hydraulic suspension unit control circuit
Inventor: JEWELL DAVID EUGENE
IPC: F16F13/00
Filed: 1969-07-21
Abstract: 1279886 Hydraulic circuits for suspension units GATES RUBBER CO 21 July 1969 48946/71 Divided out of 1279885 Heading F2S The subject matter of this specification is substantially the same as that described in Specification 1,279,885, but the claims are concerned with an hydraulic circuit comprising an hydraulic reservoir 65, a positive displacement reciprocating pump 66, a passageway between the reservoir 65 and the pump 66, a oneway check valve in the passageway to control unidirectional flow to the pump 66, a variable volume high pressure chamber 67, a passageway between the pump 66 and the high pressure chamber 67, a one-way check valve in the passageway to control uni-directional flow to the high pressure chamber 67, a pressure equalizing valve 68 between the pump 66 and the high pressure chamber 67, this valve being capable of diverting flow around the last-mentioned oneway check valve to deactivate the pump, and a passageway between the high pressure chamber 67 and the reservoir 65 containing a pressure relief valve 83 to control liquid pressure in the high pressure chamber 67 and to control the unidirectional flow to . the reservoir 65.
Patent GB-1405267-A (GB)
Title: Pickling aluminium
IPC: C23G1/12
Filed: 1972-10-24
Abstract: 1405267 Pickling aluminium TELEFONAKTIEBOLAGET L M ERICSSON 24 Oct 1972 [26 Oct 1971] 49053/72 Heading C7E Al is pickled in an aqueous solution consisting of HCl and orthophosphoric acid. The solution preferably consists of in per cent val. 20-35 of 35% HCl, 5-13 of 85% orthophosphoric acid and balance water and is used at 50-70‹C. The Al may be electro-plated after pickling.
Patent GB-1103725-A (GB)
Title: Bromination process
Inventor: FORMAN ROBERT LEITCH
IPC: C07C17/14
Filed: 1965-11-18
Abstract: C8- 22 Paraffinic hydrocarbons or partially halogenated derivatives thereof are brominated by contacting with molecular bromine in the liquid phase in the presence of molecular chlorine and, as catalyst, a compound giving rise to free radicals under the reaction conditions.
Patent GB-1356600-A (GB)
Title: Method of and apparatus for producing sub-waves
IPC: G02B27/56
Filed: 1971-10-22
Abstract: 1356600 Image-opening systems BAYER AG 22 Oct 1971 [22 Oct 1970] 49120/71 Heading G2J Sub-waves are produced (Specification 1307894) by illuminating a periodic light guide 1 with homogeneous waves which have vacuum wavelengths that are large in comparison with the period of the guide, resulting in a retardation in the phase velocity of the homogeneous waves. The polarization plane of the incident, homogeneous waves is chosen to conform with the polarization plane of a fundamental wave in the guide. The light guide 1 consists of a glass filled channel 6 in a metal block 5, the free surface of the glass having a gold layer covering 7. Slit shaped openings 2 are arranged periodically in the gold layer, the openings 2' being of graduated lengths adjacent the entry to the guide. A horn antenna 3 may be used to reduce reflections in the incident homogeneous waves. Specific details of the slits are given. The guide structure described, is used with infrared radiation.
Patent GB-1387327-A (GB)
Title: Vehicle location systems
IPC: G08G1/133
Filed: 1972-10-28
Abstract: 1387327 Road-traffic signalling apparatus MARCONI CO Ltd 13 Sept 1973 [28 Oct 1972] 49831/72 Heading G4Q In a vehicle location system the vehicle, travelling over a predetermined network of routes, transmits signals A, relating to distance travelled, and signals B, relating to change in direction, and a base station receives the signals A, B and computes the route between junctions being travelled by the vehicle by comparison with stored signals representing the distance between route junctions. In the embodiment the apparatus in a vehicle is interrogated by a signal from the base station and transmits its information by digital code and by radio. Specification 1,310,679 (see Division H4) is referred to.
Patent GB-1210534-A (GB)
Title: Method and composition for controlling boiler scale formation
IPC: C02F5/12
Filed: 1967-11-03
Abstract: 1,210,534. Boiler water treatment. BETZ LABORATORIES Inc. 3 Nov., 1967 [3 Nov., 1966], No. 50064/67. Heading C1C. A composition for treating Ca and Mgcontaining boiler water comprises a precipitating-agent, an adsorbent and an acid having a dissociation constant of 3-8. Precipitants are phosphates, carbonates and silicates. The preferred acids are triglycollamic acid, oxalic acid, ethylenediaminetetraacetic acid and citric acid. Adsorbents are lignosulphonate, lignin, tannin, starch, mannuronate salt, alginate salt, agaragar and polyelectrolytes of mol. weight 5000- 15,000,000 containing the group where R represents nitrile, amide, carboxyl or carboxyl alkyl, or a water-soluble salt of such a polyelectrolyte.
Patent GB-1415008-A (GB)
Title: Mineral mining equipment and mineral mining machines incorporating  such equipment
IPC: E21C31/02
Filed: 1972-10-31
Abstract: 1415008 Mineral-mining machines COALINDUSTRY (PATENTS) Ltd 25 Oct 1973 [31 Oct 1972] 50160/72 Heading E1F The drive from a driving motor-containing body 1 of a mineral-mining machine to a cutter head 4 mounted on one end of an arm 5 secured at the other end to said body involves a first sealed gear box formed by the arm 5 and a gear train 16, 17, 18, 19 located within the arm and having input and output shafts 6, 26 extending through seals in the arm to be respectively connected to the motor and to the input of a second sealed gear box mounted on the arm to extend into the cutter head and have a driving connection with the head. The second gearbox is preferably a reduction gear box that may involve a two stage reduction epicyclic gear 35, 36, 37, 38. The head may be fitted with the dust suppression equipment of the referred to Specification 1336791.
Patent GB-1068098-A (GB)
Title: The welding of tubes to tube plates in heat exchangers
Inventor: STEVENS ALAN ERNEST
IPC: F28F9/18
Filed: 1964-12-10
Abstract: 1,068,098. Welding by fusion. FOSTER WHEELER Ltd. Dec. 9. 1965 [Dec.10, 1964], No. 50400/64. Heading B3R. In a heat exchanger having straight tubes (12), Fig. 1 (not shown), the ends of which penetrate into or pass through holes in tube plates (13, 14), the tubes (12) are internally welded adjacent the inner surfaces of the tube plates by welds (18) which penetrate through the metal of the tubes (12). The ends of the tubes are seal welded by the same torch as forms the welds (18). The torch is as described in Specification 913,207 or 934,485. The tubes and plates are of mild or stainless steel. In a modification the tubes (12), Fig. 3 (not shown), penetrate most of the way through holes in the plate (32) and their ends abut against and are welded to shoulders (42) formed adjacent the outer surfaces of the plates.
Patent GB-1241807-A (GB)
Title: A pneumatic spring suspension unit containing a level control inside the cylinder casing
Inventor: LANGEN VIKTOR
IPC: B60G17/048
Filed: 1968-10-24
Abstract: 1,241,807. Self-levelling suspension units. V. LANGEN, [trading as LANGEN & CO.]. 24 Oct., 1968 [15 Dec., 1967], No. 50593/68. Heading F2S. A pneumatic or hydropneumatic suspension unit has a multi-way valve which serves as a level control; is located inside an extension 4 of a cylinder 1; and which, in dependence upon the relative positions of a piston rod 2 and the cylinder 1, in a first control position provides a connection between a pressure entry P and a duct 18 to a piston chamber 6, in a second control position connects an exit to exhaust T to the piston chamber 6, and in the third control position closes both the pressure entry P and the exit to exhaust T. A valve piston 8 of the multi-way valve is urged by a spring 11 into the first control position, the spring 11 being located between a shoulder 12 of the extension 4 and a retaining ring 10 which is secured to the piston 8. The piston 8 is displaced into the second position against the resistance of the spring 11 by means of a tension spring 28. The latter is attached at one end to an extension 27 of the valve piston 8 and at the other end to a sleeve 29 which is slidable in a blind hole 30 extending axially through the piston-rod 2 and piston 3. The duct 18 connects to a bore 5 via a throttling constriction 25. The extension 27 of the piston 8 has a flange 13 with a seal 14 attached thereto. When the pressure at P is zero the seal 14 closes the cylinder 6 as shown in Fig. 1 and the sleeve 29 just makes contact with a stop 31 which is secured within the piston 3. When pressure fluid is admitted through P it is passed through an annular groove 20, a transverse bore 21, the duct 18 and through the constriction 25. The piston 8 is displaced by pressure fluid acting on its face 9 and the spring 11 is compressed. The downward movement of the piston 8 allows pressure fluid to pass from P to the chamber 6, via the annular groove 20, the transverse bore 21, the duct 18, a transverse bore 17 and an annular groove 16, as shown in Fig. 2. Because of the differential existing between the face 9 and the flange 13 of the piston 8, the pressure of the fluid received through P must exceed the pressure in the chamber 6. This causes the piston 3 to move downwards and, by means of the stop 31, forces the sleeve 29 against the spring 28. The piston 8 is pulled downwards, the pressure entry P is closed and continued movement of the piston 8 causes the chamber 6 to communicate with the exit to exhaust T, via the annular passage 16, the transverse bore 17, the duct 18, a transverse bore 24 and an annular passage 23, as shown in Fig. 3. The piston 3 is also moved downwards by means of fluid received from an accumulator 32, this taking effect when the spring unit is relieved of load. When the piston 3 retracts, the piston 8 is returned by means of the spring 11 and the pressure acting on its flange 13, the exit T is covered and communication between the entry P and the annular groove 20 is re-established.