baber/WOPTO huggingface dataset:
Patent GB-694136-A (GB)
Title: Improvements in or relating to pivotal joint assembly
IPC: F16C11/06
Filed: 1951-02-08
Abstract: 694,136. Pivotal joints. THOMPSON PRODUCTS, Inc. Feb. 8, 1951 [Aug. 16, 1950], No. 3091/51. Class 65 (ii) A pivotal joint comprises a socket 10, a bearing member 25 movably housed in the socket, a separate insert 18 fixedly retained in the socket, the insert having a hardened surface for accommodating movement of the bearing member and an end portion 20a within the socket forming an abutment, a closure member 21 for the socket seated against the abutment, and a spring 43 seated on the closure member for urging the bearing member into contact with the hardened surface. The end portion 20a is knurled to grip the socket. The bearing member has a hardened, spherical bearing surface. A stud 33 is rotatably disposed in the bearing member and has a rounded head 34 seated in a free, cupshaped member 41 against which the spring acts. The stud rotates on ball bearings 32 disposed between a hardened sheet metal race 31 at the base of the bearing member and a hardened race 39 formed on the stud adjacent its head. Spiral lubricant grooves 29 are formed in the spherical surface of the bearing member and a lubricator 45 is fitted to the socket.
Patent GB-786191-A (GB)
Title: Improvements in or relating to liquid dispensing valves
IPC: B67D1/00
Filed: 1954-02-02
Abstract: 786,191. Valves. SMITH & SONS (WOKING), Ltd., A., and ATHERTON, L. Jan. 28, 1955 [Feb. 2, 1954], No. 3118/54. Class 135. Two liquids can be dispensed simultaneously in a beverage dispensing device by means of a conical rotary plug valve 11 which is provided with a diametral passage 20 and a further right-angled passage 19. Passage 20 connects an inlet port 16 with an outlet passage 17 and passage 19 connects a lateral inlet port (not shown) with an outlet passage 15. The proportion of liquid passing through the passage 20 to that passing through the passage 19 can be varied by means of a throttle 28 which projects into the passage 20. The plug is rotated by means of a handle 22 and is held in adjusted position by means of a spring-pressed ball 32 co-operating with recesses in the casing of the valve. An alternative handle consists of a yoke 36 with its arms embracing the two ends of the plug. As a container is placed underneath the outlets 17, 19, it pushes the yoke on one side and sets the valve to the delivery position.
Patent GB-992322-A (GB)
Title: Improvements in hydraulic pumps
IPC: F04B1/32
Filed: 1962-01-26
Abstract: 992,322. Reciprocating pumps. INTEGRAL Ltd., and T. E. BEACHAM. April 26, 1963 [Jan. 26, 1962], No. 3139/62. Heading F1A. [Also in Division G3] In an hydraulic pump having a shaft carrying a rotary cylinder block with pistons coacting with a swash plate and with cylinders communicating in succession with inlet and discharge ports in a stationary valve plate, the casing is of unequal wall thickness such that the longitudinal stress in the casing is substantially constant throughout its circumference. The thickness of the wall of casing 10, Figs. 2 and 3, is such that the centroid of the casing cross-section coincides with the mean position of the resultant thrust of the pistons 21. This substantially prevents unequal longitudinal stresses in the casing 10 and thereby maintains parallel the mating faces between the cylinder block 16 and the valve plate 28 provided with inlet and discharge ports 29, 30. In order to avoid stresses due to unequal thermal expansion, the valve plate 28 is supported on pins 33, 35 screwed into the casing 10 to project into a closely fitting hole and a slot 36 respectively, in the valve plate. Ports 37 and grooves 38, 39 maintain hydrostatic balance across the valve plate 28. The swash plate 23 is held in its load position by a piston 26, Figs. 3 and 6, subjected to the pump delivery pressure through a conduit 42. At a predetermined pump delivery pressure a piston 43, biased by a control spring 44, is forced to the left and, due to the travel x to close a drain passage 46 being greater than the dimension y, a gradual build up of pressure below a piston 47 results, and the latter is eventually raised causing a rod 53 and a piston 49 to close a drain passage 50 and open a passage 54 respectively. This communicates the pump delivery pressure to a piston 60 of larger area than the piston 26 so that the swash plate 23 is rotated about a pair of rockers 24 to its off-load position. A gear pump 31 driven by the pump shaft circulates oil through the casing for cooling the pump, reducing the pressure in the casing to below the inlet pressure to ensure that slippers 22 are not disengaged from the swash plate 23, and for lubricating shaft bearings 17, 18.
Patent GB-761349-A (GB)
Title: Improvements in or relating to the soldering of metals and flux compositions therefor
IPC: B23K35/36
Filed: 1953-02-04
Abstract: A flux comprises 50-90 per cent by weight of stannous chloride, 5-30 per cent of zinc dihydrazinium chloride and 5-30 per cent hydrazine monohydrochloride or monohydrobromide.  The flux may be applied as a dry powder or as a paste containing up to 10 per cent of water; the latter may be further thinned with alcohol.  A polyethylene oxide wetting agent may also be present.
Patent GB-915112-A (GB)
Title: A refill of a ball point writing means
IPC: B43K7/035
Filed: 1959-01-29
Abstract: 915,112. Reservoir pens. DOLEO S. A. Jan. 29, 1959 [Feb. 4, 1958], No. 3170/59. Class 146 (3). In a ball-point pen, or a refill writing unit therefor, comprising an ink tube 1 closed at its upper end by a plug 4, and a ball writing-point 3 at its lower end the space 5 above the ink column 2 contains a gas above atmospheric pressure generated by the chemical reaction of a liquid 8 and a plug 7, the arrangement being such that the gas pressure progressively decreases as the ink is used to compensate the increased gap between the ball and its housing due to wear. The plug 7 is formed of a pasty substance, and may rest on the ink, or on an interposed solid piston. The gas may be carbon dioxide, hydrogen, ammonia, or nitrogen, in which cases the plug 7 is of sodium bicarbonate, aluminium, calcium hydroxide, and a diazonium compound respectively, and the liquid 8 is acetic acid, sodium hydroxide, ammonium chloride, and an inorganic or organic acid, respectively. In the case where the liquid 8 is acetic acid and the plug 7 contains sodium bicarbonate, the strength of the acid is such that the pressure of the gas produced is only slightly above atmospheric pressure to supply the ink to the ball. Due to the chemical reaction, a coating barrier layer 6 is formed between the liquid and plug to interrupt the reaction; this layer is broken when the upper end of the ink column is lowered, with the result that a fresh reaction takes place until the layer is reformed. Thus, in view of the formation and breakage of the layer 6, the gradual dilution of the acetic acid, and diminution of the sodium bicarbonate, the pressure of gas in the space 5 decreases as the ink is used and the ball housing wears. The plug 4 is of rubber, and its introduction into the tubo 1 sets up an initial gas pressure.
Patent GB-1217171-A (GB)
Title: Ion exchange unit and method of regeneration
Inventor: HUGHES ERNEST
IPC: B01J49/00
Filed: 1967-01-20
Abstract: 1,217,171. Ion exchange. JOHN THOMSON-KENNICOTT Ltd. 18 Jan., 1968 [20 Jan., 1967], No. 3200/67. Heading B1J. The collecting/distributing system of an ion exchange is located at an intermediate point of the bed during its normal operative treatment state and during regeneration the upper and lower regions of the bed are regenerated by separate supplies of regeneration liquid.
Patent GB-791446-A (GB)
Title: Improvements in or relating to connecting members for unit furniture or the like
Inventor: BUS JOHANNES ANTONIUS
IPC: F16B12/20
Filed: 1956-02-01
Abstract: 791,446. Furniture joints. NAAMLOOZE VENNOOTSCHAP UTRECHISCHE MACHINALE STOEL-EN MEUBELFABRIEK U. M. S. Feb. 1, 1956, No. 3246/56. Class 52(2) Walls 10 of unit furniture or the like are connected by a post 12 to which they are secured by draw members 19, 21 connected together by a screw joint 17 within the post and tightened by rotation of cams 23 which take under the heads 24 of the draw members and are countersunk in the walls.
Patent GB-585262-A (GB)
Title: Improvements in or relating to gas cookers
IPC: F24C3/08
Filed: 1945-02-09
Abstract: 585,262. Cooking-stoves. WILSON GAS METERS, Ltd., G., and DOBSON, W. A. Feb. 9, 1945, No. 3269. [Class 126] A gas cooker comprises a gas heated oven 2 and a gas heated grilling unit 1 contained and supported therein on the shelf runners 3 in removable connection with one of a plurality of gas jets 4.
Patent GB-1527681-A (GB)
Title: Trolley capable of climbing a stair way
IPC: B62D51/00
Filed: 1976-01-28
Abstract: 1527681 Winches SUNWA SHARYO MFG CO Ltd 28 Jan 1976 [6 Feb 1975] 3329/76 Heading B8B [Also in Division B7] A winch for longitudinally displacing the load platform of a trolley capable of transporting loads on stairways comprises a winding drum 16 threaded on a screwed shaft 13 which can be rotated by a handle, a ratchet wheel 18 and friction pads 17, 19 mounted on the shaft 13 between the drum 16 and a disc 20 fixed to the shaft, and a pawl 21 permitting rotation of the ratchet wheel 18 only in the winding-in direction. The cable tension holds the drum 16 against the friction pad 17 due to the action of the screw thread, and the cable 9 is released in a controlled manner when the shaft 13 is rotated in the paying-out direction by means of the handle.
Patent GB-1441109-A (GB)
Title: Coating compositions
IPC: D21H19/60
Filed: 1973-01-23
Abstract: 1441109 Vinyl acetate polymer-based coating compositions IMPERIAL CHEMICAL INDUSTRIES Ltd 27 Dec 1973 [23 Jan 1973 3349/73 Heading C3P A coating composition comprises white pigment extender, a vinyl acetate polymer latex as sole or principal binder one or more sparingly water-soluble optical brighteners having a water solubility of less than 0À5% at 20 C., and water. Suitable white pigment extenders are china clay, whiting, barytes, satin-white and TiO 2 . Preferred optical brighteners are heterocyclic pyrene derivatives and pyrene carboxylic esters, heterocyclic naphthalene derivatives, pyrazolines, mono- or bis-oxazoles, thiazoles, imidazoles, coumarins, naphthalimides and triazolyl derivatives of stilbene. In the examples latexes of polyvinyl acetate, a copoly-(vinyl acetate/acrylic) latex, and an ethylene/vinyl acetate copolymer latex, are formed in the above composition. The specific optical brighteners used are 1-(2,4-dimethoxy-s triazin- 6 - yl) - pyrene, 4 - (2,4 - dichloro - s - triazin - 6- yl) - 1 - ethoxynaphthalene, 3 - (4 - chlorophenyl) - 1,4 - aminosulphonyl phenyl) - 2- pyrazolone, 2,5 - bis - (benzoxazol - 2 - yl)- thiophene, 3 - phenyl - 7 - (3 - methyl pyrazol- 1 - yl) - coumarin, 5 - phenyl - 2 - pyrenyl - 1,3,4- oxa - diazole, and 1 - (2,4 - diallyloxy - striazin-6-yl)-pyrene. Substrates such as paper, board, films, textile fabrics, non-woven materials and building materials, may be coated with the composition.
Patent GB-679170-A (GB)
Title: Improvements in lubricants
Filed: 1948-02-05
Abstract: An extreme pressure lubricant comprises a lubricating oil and at least 0.1 per cent of a compound of the class consisting of seleno-mercaptans and esters of selenic acid which, when thus included in the lubricant, will not show a substantial reactivity with copper when heated to 100 DEG C but will show such reactivity when heated to 250 DEG C.  A table is given which defines substantial reactivity numerically.  The lubricating oil may be of mineral, animal, vegetable or synthetic origin.  Lauryl, cetyl, cyclohexyl, methyl-cyclohexyl, amylphenyl and lauryl-benzyl selenomercaptans are mentioned as suitable selenomercaptans, while suitable esters of selenic acid mentioned are dilauryl, dibenzyl and dicyclohexyl selenates.  The lubricant may also contain organic halogen compounds, organic compounds containing a metal and organic derivatives of inorganic oxy-acids and of the corresponding mono- and polythio acids, since such compounds cooperate synergistically with the selenium compounds.  Soap, corrosion inhibitors and organic oxygen compounds such as butyl stearate, methyl naphthenate and dibutyl phthalate may also be present in the lubricant.  Specification 425,569 is referred to.  The Specification as open to inspection under Sect. 91, refers to the addition to lubricating oil of an organic sulphur or selenium compound which when thus included in the lubricating oil will not show a substantial increase in reactivity with iron or copper when heated to temperatures below 100 DEG C but will show such an increase in reactivity when heated to temperatures above 100 DEG C but below 250 DEG C.  The various types of organic sulphur compounds, and the various types of the synergistic co-operating compounds which may also be added to the lubricating oil, are very fully listed.  A table setting out the composition of 30 specific lubricants is included.  This subject-matter does appear in the Specification as accepted.
Patent GB-105902-A (GB)
Title: Improved Manufacture of Ingot-iron and Steel.
IPC: C21C7/06
Filed: 1917-03-07
Abstract: 105,902. Deutsch - Luxemburgische Bergwerks-und Hutten Akt.-Ges., and Klinkenberg, A. April 18, 1916, [Convention date]. Addition to 105,548. Cast-iron and scrap processes.-In the process described and claimed in the parent Specification, the carbohydrates used as deoxidizing materials are introduced in a more or less finely divided condition into the tapping ladle. Cellulose carriers, such as wood wool, shavings, sawdust, and heather or other herb-like plant may be employed.
Patent GB-305181-A (GB)
Title: Improvements in and relating to feed water heaters
IPC: B01D19/00
Filed: 1929-02-01
Abstract: 305,181. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). Feb. 1, 1928, [Convention date]. Feedwater, heating. - The upper part' of a feed-heater is surrounded by a chamber n, into which feedwater, after traversing the tubes i, l in single or triple pass, falls over the edge of the upper tube-plate m. Air, disengaged in the chamber n and, if a triple pass is used, the chamber h is withdrawn through a pipe p connected to a source of vacuum such as the condenser c. Steam for heating is tapped from the turbine d through a pipe e. A pressure-equalizing vessel s may be fitted to the feed pipe q, with a connection to the air-pipe p.
Patent GB-1285831-A (GB)
Title: Universal joint
IPC: F16D3/205
Filed: 1970-01-23
Abstract: 1285831 Universal joints GELENKWELLENBAU GmbH 23 Jan 1970 [31 Jan 1969] 3445/70 Heading F2U In a universal joint of the type in which partspherical rollers 6 carried by radial trunnions 5 of one joint element 3 engage between radial arms 2 of the other element 1, relative axial movement of the elements is prevented by a member 34 carried on a stub shaft 14 of element 3 and formed with concave and convex bearing surfaces 35, 36 centred on the point of intersection M of the trunnions 5 and respectively engaging a complementary convex surface 35<SP>1</SP> on a ring 37 and a flat surface 36<SP>1</SP> on a cover member 31.
Patent GB-876462-A (GB)
Title: Isomerization process
Inventor: DONALDSON GEORGE RODERICK
IPC: C07C9/16
Filed: 1960-02-02
Abstract: In the isomerisation of a hydrocarbon in the presence of hydrogen and a catalyst prepared by vaporising a Friedel-Crafts metal halide onto a refractory oxide support carrying a hydrogenation catalyst and thereafter heating at above 300 DEG C. to remove unreacted Friedel-Crafts halide, the feed used contains at least one of oxygen-, sulphur-and nitrogen-containing impurities in catalyst deactivating amounts and the amount of such impurities is reduced below deactivating levels before the isomerisation step.  The feed is first treated to reduce the nitrogen level below 10 p.p.m. and the sulphur level below 10 p.p.m. by contact with sodium plumbite, hypochlorite or alkali or preferably by hydrogenation in the liquid or vapour phase over a metal, or oxide or sulphide thereof, of Group VIa or VIII of the Periodic Table supported on an inorganic oxide or clay, e.g. at 40-425 DEG C. and up to 135 atmospheres.  After separation of the hydrogen together with hydrogen sulphide and ammonia the water level is reduced to below 5 p.p.m. by distillation and/or treatment with liquid or solid drying agents.  The Friedel-Crafts halide may be aluminium bromide or chloride, antimony pentachloride, beryllium bromide or chloride, ferric bromide or chloride, gallium trichloride, stannic bromide or chloride, titanium tetra-bromide or -chloride, zinc bromide or chloride or zirconium chloride and forms 2-25% of the refractory oxide containing the hydrogenation catalyst which may be a metal of Group VIa or VIII. Isomerisation is effected at 100-300 DEG C., a pressure of 3.5-100 atmospheres, with a hydrogen to hydrocarbon mol ratio of 0.25-10:1, an LHSV of 0.25-10 using fixed, moving or fluidised catalyst beds. Hydrogen halide may be added and also naphthenes and/or aromatics if desired.  Unreacted material may be separated and recycled. Paraffins, naphthenes or alkylaromatics may be isomerised.
Patent GB-206066-A (GB)
Title: Improved letter sheets
IPC: B42D15/08
Filed: 1923-02-07
Abstract: 206,066. Eland, C., (Eland, W. E. A.). Feb. 7, 1923. Letter-sheets. - In a letter-sheet of the type comprising a sheet of paper provided with a flap a, Fig. 1, extending approximately half the length of one edge, and a flap b extending less than half the length of an adjacent edge, so that on folding along the'lines g, h, j a pocket for enclosures is formed, the flaps are of rounded form and are only partly covered with adhesive to allow the insertion of a paper-hnife or the like at the points l, Fig. 5, for opening.
Patent GB-1094581-A (GB)
Title: Corrugated and composite sheets particularly for floors
Inventor: CURRAN BERNARD EDWIN
IPC: E04B5/40
Filed: 1965-01-27
Abstract: 1,094,581. Composite metal sheet. H. H. ROBERTSON CO. Jan. 27, 1965, No. 3678/ 65. Heading E1K. A composite metal sheet comprises troughs 24 which are wider at the bases than between the crests which have transverse ridges or grooves 25. The bases have projections 31. A corrugated sheet may be secured to a flat sheet 17 or another inverted corrugated sheet Fig. 15 (not shown) or a number of separate parallel channels are mounted on a flat sheet Fig. 17 (not shown). The ridges or grooves are pressed in the sheet and may be obliquely arranged. Sheets are joined edge to edge by tongues 18 and grooves 19.
Patent GB-1494354-A (GB)
Title: Amplifiers in combination with protective circuits
IPC: H03F1/42
Filed: 1975-01-28
Abstract: 1494354 Protecting directly-coupled amplifier loads SONY CORP 28 Jan 1975 [31 Jan 1974] 3699/75 Heading H2K An amplifier 9 non-capacitively coupled to a load 6 (e.g. a loud-speaker) is disconnected (23) from the load if either (i) the load impedance falls, e.g. due to short-circuiting, or (ii) any D.C. component appears in the amplifier output, these conditions being detected by a network of diodes, resistors and capacitors arranged in bridge-like configurations. The amplifier is also disconnected if it overheats. Detecting load impedance.-The load 6 and a resistor 5 form one branch of a normallybalanced bridge network whose other branch is formed by resistors 1a and 2 on positive halfcycles and by resistors 1b and 2 on negative halfcycles. Any unbalance caused by a reduction in load impedance is detected by a capacitor 7 and co-operating diodes 12a, 12b, arranged so that the unbalance voltage appearing on the capacitor has the same sign in both half-cycles. This triggers a switching network 17-21 to switch off a normally-conducting transistor 21 and thus disconnect the load. A delay network 32, 33 eliminates transients. In a modification (Fig. 3, not shown), said to be insensitive to phase shifts in the load, the unbalance detector comprises two series-connected capacitors in place of capacitor 7, with their midpoint directly connected to the point P. Detecting presence of D.C.-Capacitor 8 in series with a resistor 3, a resistor 4 and resistor 2 form three arms of a bridge, the remaining arm being formed by resistors 1a, 1b, respectively, in alternate half-cycles. Any D.C. component in the amplifier output charges the capacitor 8 to unbalance the bridge, and this is again detected by the capacitor 7, co-operating with diodes 13a, 13b. Detecting temperature rise.-Excessive temperature rise in the amplifier 9 causes PTC resistor 26 to actuate the switching network.
Patent GB-803086-A (GB)
Title: Improvements in or relating to typewriters and the like including tabulating mechanisms
IPC: B41J25/18
Filed: 1956-02-07
Abstract: 803,086. Tabulating mechanism for typewriters and the like. INTERNATIONAL BUSINESS MACHINES CORPORATION. Feb. 7, 1956 [Feb. 10, 1955], No. 3745/56. Class 100(4). Data in the form of electrically conductive marks 13, Fig. 2, on a worksheet 11 is used in conjunction with sensing means B, Fig. 7, to control tabulating movements of the carriage of a typewriter or like machine to present selected portions of the worksheet to the printing station. Tab resetting mechanism C resets the stops after they have been set. The data-is recorded on the worksheet in predetermined selected portions and the tabulating mechanism is operative when the carriage is moving in one direction only. The sensing means may comprise contacts, such as brushes 14, Figs. 3, 4, adapted to engage the marks 13 on the paper or may comprise photoelectric means which energize a solenoid 49, Fig. 5, to move a tabulating stop to operative position. The brushes 14 comprise a holder 16 of insulating material in which a number of wires 17 are carried with their free ends 22 extending through the holder 16 below the lower face 21 so as to engage the surface of the worksheet. The holder 16 is yieldingly and adjustably supported against the typewriter roller by a steel strap 26, Fig. 2, so that documents of varying thickness may be accommodated in the machine. The circuit containing brushes 17, conductors 41, 42, thyraton 43, solenoid 49 and relay 51 is so arranged that when a conductive mark on the sheet 11 is sensed the solenoid 49 is momentarily energized through an impulse on the control grid to displace a tab stop. Further movement of the carriage causes the displaced stop to be cammed to its normal position.
Patent GB-348069-A (GB)
Title: An improved device for use in connection with codes
IPC: G09C1/04
Filed: 1930-02-04
Abstract: 348,069. Coding-devices. SUNDERLAND, C. and MEGSON, C. R., 11, Queen Victoria Street, London. Feb. 4, 1930, No. 3821. [Class 146 (ii).] A device for the use of alternative codes comprises a plurality of strips 4, mounted in a frame 1, having transparent sides, so that the set of symbols and appropriate code signs on one side of the strips 4 may be observed, while the corresponding complementary code signs and symbols on the reverse side of the strips 4 are available by turning the frame over back to front. The strips are interchangeable and are provided with suitable symbols 11 for arranging them in predetermined sequence. The code symbols are printed in different colours on the back and front of the strips and a narrow black line of demarcation 20 is provided along the longitudinal edges of each face. Finger-pieces 5 are provided in the frame 1 for removal of the strips. The code cards are normally arranged in compartments in a box, which also serves to accommodate the frame: alternatively a protecting wallet may be provided for carrying the frame, furnished with pockets to receive the strips. In a modification the code strips may be arranged horizontally.