baber/WOPTO huggingface dataset:
Patent GB-953305-A (GB)
Title: Improved fluid seal and method of making the same
IPC: F16J15/32
Filed: 1962-10-05
Abstract: A sealing ring (see Division F2) is formed from a sintered mixture containing 90% by weight of granular P.T.F.E., 9.4% of granular carbon and 0.6% of fine mesh graphite.
Patent GB-1390257-A (GB)
Title: Coloured cement
IPC: C04B7/42
Filed: 1972-08-15
Abstract: 1390257 Coloured cements GENERAL PORTLAND Inc 15 Aug 1972 [19 Aug 1971] 38015/72 Addition to 1343826 Heading C1H The process of the parent Specification 1,343,826, modified by maintaining the clinker, by applying heat subsequent to its leaving the burning zone, at above 2600 F., until it is rapidly quenched.
Patent GB-344858-A (GB)
Title: Improvements in or relating to advertising devices
IPC: G09F11/29
Filed: 1929-12-11
Abstract: 344,858. Displaying advertisements. SILK, R. W., 204, Adelaide Road, Hampstead, London. Dec. 11, 1929, No. 38017. [Class 3 (i).] An advertising device comprises a display disc, having a transparent centre, continuously rotated in front of an intermittently moved endless or non- endless display band. The Figure shows a non- endless display band 29 wound on and off storage rollers 31, 32. The display disc 10 is supported on three friction wheels 12, 13, and may represent a gramophone record through the central portion of which the part of the band 29 lying between guide rollers 30 is seen. The rotation of the disc 10 is effected by the wheel 12, which is driven from a motor 18 through worm gearing 19, 20, pulleys 21, 22, shaft 17, and a final belt. The band 29 is intermittently moved by passing it round a drum 33 having teeth 34 engaging perforations in the band, the storage rollers 31, 32 being so interconnected by slipping belts and free wheels that they rotate one another and maintain the band 29 taut. Two oppositely directed ratchet wheels 41 are mounted on a shaft 61 which is engaged with one or the other according to whether it is pushed in or out, the shaft 61 being slidable relatively to the drum 33 but rotatably fixed thereto. The pawls 44, 45 engaging the two ratchets 41 are simultaneously advanced in opposite senses by links 46, 47 pivoted to an arm 49 hinged at 51 and rocked by the pull of a hook 55 and the retraction of an adjustable spring 52. The hook 55 is held against the pin 54 of the arm 49 by a spring 56, and is reciprocated by a crank pin 26 driven by the motor 18. A weight 28 on the shaft 27 counterbalances the spring 52 and the weight of the pawloperating members. The axial movement of the shaft 61 is effected by an incline 66 pivoted at 68 and fixed to two shoes 71. When the band 29 is almost unwound from the paying-off roller a bar 69 mounted on the band near its end, and normally lying in notches 70 in the roller flanges, engages and tilts a shoe 71 and rocks the incline 66 across, the incline pressing against the sides of a grooved wheel 65 fixed on the shaft 61. The drum 33 is held in position when stationary by a spring-pressed plunger 57 engaging holes 60 in the drum side. The plunger is released by a lever 58 rocked by the engagement therewith of the rising arm 49. The display matter may be on separate sheets each held to the band 29 by inserting their corners under loops or slots in the band. A lamp is disposed behind the band, which may be of tracing cloth, celluloid, thin metal, &c.
Patent GB-358371-A (GB)
Title: Improvements in or relating to escapement-actuating mechanism of typographical machines
IPC: B41B11/18
Filed: 1930-12-17
Abstract: 358,371. Type-bar-making machines. HART, H., 9, Kingsway, London.-(Mergenthaler Linotype Co. ; 29, Ryerson Street, Brooklyn, New York, U.S.A.) Dec. 17, 1930, No. 38023. [Class 100 (iii).] Escapements.-In machines adapted for handling founts of matrices which differ as to the size and number of their characters, such as the ordinary ninety-character founts and seventy-two or fiftyfive character display founts, two series of motiontransmitting members, permanently connected together by rocking bails, are interposed between the keyboard and the escapement actuating-levers, and means are provided for bringing either set of members into action according to the magazine in use. In an arrangement adapted for two main magazines and one auxiliary magazine, the escapement levers E of the main magazines, one of which contains a ninety-character text fount and the other a display fount, are actuated by short reeds El from either of two sets of motion-transmitting members C, D, which equal in number the channels in the text and display magazines respectively. Corresponding members of the two series C, D are permanently connected together by rocking bails F, whereby the action of the members C is displaced laterally in accordance with the different arrangement of the characters in the two magazines. The members C are arranged directly above, and are actuated by, a series of short reeds E<2> operated by the usual cam-yokes E3. The reeds E<1> are adjustable at their lower ends by means of a hand-lever M<7>, in order to bring them into engagement with either of the series of members C, D, according to the magazine in use. To enable matrices to be released from the auxiliary magazine, the upper ends of the reeds E<1> are shiftable by means of a hand-grip N<1>, so that they are brought under notches E<9> in the levers E and are, at the same time, engaged with rocking bails G, which operate the escapementreeds of the auxiliary magazine. Since the auxiliary magazine contains only thirty-four characters, only a corresponding number of the reeds E<1> need be so adjustable.
Patent GB-951098-A (GB)
Title: Improvements in or relating to apparatus for threshing grain
IPC: A01F12/18
Filed: 1960-11-04
Abstract: 951,098. Harvesting machines. S STOKLAND. Nov. 4, 1960 [Nov. 7, 1959; Jan. 11, 1960], No. 38062/60. Heading A1F. A harvesting machine comprises a reciprocating cutter 12, shovel-like conveyers 69 guided by rods 70 moving along a cam track 66 delivering the cut crop to a thrashing device consisting of a rotating drum 15 having a stretched shell 16 of a resilient material which co-operates with rods 30 extending axially of the drum and spaced so that grain and chaff pass between them to screw conveyers 41 and 41<SP>1</SP> and thence to pipe 43 connected to a fan 44 which blows the grain and chaff to a cyclone separator (not shown). The straws pass from between the drum and rods and fall to the ground The shell of the drum is stressed axially and may be supported at intervals from the interior by spring loaded rods 25 with heads 26. The rods 30 may consist of elastic material or may be radially movable against the action of a spring. A reel for deflecting the crop towards the cutter is rotatably mounted on a shaft 54 whose height above the cutter is adjustable. All the rotating parts of the machine are driven via belts and chains from a shaft 76 connected to the power take off of a tractor to which the machine is hitched. The cutters are driven from a crank 82 and rod 84.
Patent GB-364313-A (GB)
Title: Improvements in and relating to textile piece boards
IPC: B65H75/06
Filed: 1930-12-18
Abstract: 364,313. Piece boards. HOLMES, P. and MANN, A., (trading as HOLMES, MANN, & CO.), 202, Leeds Road, Bradford, Yorkshire. Dec. 18, 1930, No. 38159. [Class 42 (ii).] A piece-board P has its ends protected by metal &c. troughshaped members A secured to the board by pressing thereon the projecting parts A<1>. The Provisional Specification states that the trough may be secured by small nails.
Patent GB-1301138-A (GB)
Title: Condensation products from 1-aminoalkyl-imidazolines, compositions containing them and processes for inhibiting corrosion in wells
Inventor: MADDOX JIM JR
IPC: C07D233/16
Filed: 1970-08-07
Abstract: 1301138 N-Imidazolinylpolymeric acid amides TEXACO DEVELOPMENT CORP 7 Aug 1970 38159/70 Heading C2C [Also in Division C7] The invention comprises an amide condensation product of the formula wherein R is a (C 17  to C 32 ) tall oil fatty acid radical, A is an ethylene or propylene radical; m is an integer from 1 to 6; R<SP>1</SP> is a hydrocarbonaceous moiety of a (C 15  to C 70 ) polymeric acid selected from dimer and trimer fatty acids and higher M.W. polymerized carboxylic acids, and n is an integer from 2 to 4. It may be obtained by condensing an appropriate polymeric acid with a 1-aminoalkyl-2-alkyl-2-imidazoline. Examples are given for the production of the compounds. They are useful as corrosion inhibitors for metals found in contact with petroliferous well fluids. 1 - Aminoalkyl - 2 - alkyl - 2 - imidazolines may be obtained by reacting stoichiometric amounts of a high M.W. monocarboxylic fatty acid with a polyalkylene polyamine of the formula H 2 N(A-NH) x H wherein x is an integer from 2 to 7.
Patent GB-871826-A (GB)
Title: Improvements in and relating to shoulder rests for violins and similar stringed musical instruments
IPC: G10D3/18
Filed: 1957-12-10
Abstract: 871,826. Violin shoulder rests. STEWART, W. J. March 9, 1959 [Dec. 10, 1957], No. 38311/57. Class 88 (2). A shoulder rest for violins &c. comprises a resilient structure with two hooks at one end and a single hook at the other end for gripping the violin. In one arrangement, Fig. 1, a crossbar g carrying two rubber covered hooks h connects two bent portions d of the wire sides b. A single hook l is arranged at the other end of the rest. The wires may be covered with velveteen, and cork o also covered with velveteen p may be held between the wires. In a modification, Fig. 3, a sheet metal structure w apertured at y is hinged to a wire frame q carrying the crossbar g. A spring v holds the hooks against the violin when in use. The edges x may be tubular. In another modification, Fig. 2, the wire frame q is hinged to a strut e joining the wires b.
Patent GB-832292-A (GB)
Title: 1ª‰-carboxy-5ª‰-hydroxy-8-ketohexahydronaphthalene lactone
Inventor: MULLER GEORGES
IPC: C07D311/00
Filed: 1957-12-10
Abstract: The invention comprises the racemic lactone of 1b  - carboxy - 5b  - hydroxy - 8 - oxo - 1 : 4 : 4aa  : 5 : 8 : 8aa  - hexahydronaphthalene, and the preparation thereof by lactonizing p the corresponding acid by heating with acetic anhydride and an alkali metal acetate in an inert solvent for the starting material.  The product yields a hydroxy-lactone of the formula <FORM:0832292/IV (b)/1> on reduction by the Meerwein-Ponndorf process.  Racemic 1b  - carboxy - 5b  - hydroxy - 8 - oxo - 1 : 4 : 4 : 4aa  : 5 : 8 : 8aa  - hexahydronaphthalene is prepared by condensing vinylacrylic acid with p-benzoquinone and reducing the resulting adduct with sodium borohydride.
Patent GB-1237034-A (GB)
Title: Substituted indolines
IPC: C07D209/16
Filed: 1969-07-31
Abstract: 1,237,034. Indoline derivatives. DR. KARL THOMAE G.m.b.H. 31 July, 1969 [31 July, 1968; 20 June, 1969], No. 38446/69. Heading C2C. The invention comprises compounds of formula and their acid addition salts, wherein R 1  is C 1-5  alkyl, R 2  and R 3  are each H, Cl, Me, Et, MeO or EtO, R 4  and R 5  are each C 1-5  alkyl, cycloalkyl. C 1-5  alkyl, C 3-5  alkenyl or C 5-7  cycloalkyl (or NR 4 R 5  forms a saturated-possibly C 1-3  alkyl or Ph substituted-monocyclic heterocyclic 5- or 6-membered ring which may contain O or a further N atom), A is a C 2-4  bivalent aliphatic hydrocarbon group and n is 1 or 2. These compounds, prepared by reduction of the corresponding pseudoindoles, may be separated into stereoisomers, and the latter may be resolved into optical isomers. Therapeutic compositions for oral, parenteral or rectal administration comprise compounds of the above formula, which have analgesic, antiphlogistic and antitussive activity.
Patent GB-837896-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B69/12
Filed: 1956-12-18
Abstract: 837,896. Change-speed gear. PFAFF A.G., G. M. Dec. 18, 1956 [April 24, 1956], No. 38504/56. Class 80 (2). [Also in Group VII] A two-speed drive from a pulley 3 of an electric motor 4 to the shaft 10 of a sewing machine, comprises a first belt 2 directly connecting the motor pulley with a groove 9 in the usual hand wheel 1, and a second belt 32 running in grooves 20 in a screwed clutch member 13 and 28 in a stepped pulley carried on an adjustable countershaft 24 and having a larger groove 26 engaging the first belt 2. Low ratio, for embroidering, is obtained when the hand wheel 1 is first released from the machine shaft 10 by unscrewing the screwed clutch member 13 from a thread 15 in a sleeve 11, pinned to the shaft 10, to release clutch pressure on a disc 17. The stepped countershaft pulley 26 is then adjusted by sliding a slotted support arm 22 over a clamp-screw 8 to tighten both belts, whereupon drive from the motor pulley 3 passes through the belt 2 to the now freely rotatable hand wheel 1 and countershaft pulley 26, and from the latter through the belt 32 to the screwed clutch member 13 and thence to the shaft 10 through positive connections 16, 18, 19 on the disc 17, clutch member 13 and sleeve 11. The connection 18, 19 permits sufficient lost-motion for screwing the clutch member 13, which in this disengaged position is locked by a central screw 21. For high-speed the countershaft pulley 26 is withdrawn from the belts and the clutch member 13 is screwed into the sleeve 11 to clutch the hand wheel 1 frictionally to the sleeve 11 through the disc 17, the machine then being driven direct through the belt 2 and hand wheel 1. A jockey pulley 7, bearing on the belt 2 only, is carried on a slotted adjustable arm 6 either integral with or separate from 22 and clamped by the same screw 8.
Patent GB-1032307-A (GB)
Title: Improvements in and relating to fasteners for use as coupling pins
Inventor: OVERHOFF HEINRICH
IPC: F16B21/12
Filed: 1964-09-22
Abstract: 1,032,307. Cotters. A. V. RAYMOND, [trading as A. RAYMOND DRUCKNOPF UND METALLWARENFABRIK]. Sept. 22, 1964 [Sept. 26, 1963], No. 38588/64. Heading F2H. [Also in Division E2] A fastener comprises a pair of resilient outwardly bowed arms 5, 6 and, lying between the arms and joined integrally thereto, a pin 1 extending into the space between the free ends of the arms. The bowed arms 5, 6 have a reinforcing rib 9 extending along the mid-line of the arms to the free ends. The free end 2 of the pin is tapered to facilitate insertion into the aligned holes of two coaxial shafts.
Patent GB-1218814-A (GB)
Title: New polyglycerylamines and a process for their preparation
IPC: D06M13/385
Filed: 1968-08-13
Abstract: 1,218,814. N - acyl - N - alkyl (or alkenyl)- polyglycerylamines. HENKEL & CIE G.m.b.H. 13 Aug., 1968 [14 Aug., 1967], No. 38588/68. Heading C2C. N - acyl - N - alkyl (or alkenyl) polyglycerylamines of general formula (R 1 )(Pgl)N-CO-R 2  in which R 1  is C 1 -C 30  alkyl or alkenyl, R 2  is C 1 -C 29  hydrocarbyl residue of an aliphatic carboxylic acid and Pgl is a polyglyceryl residue containing from 2 to 15 glyceryl residues are prepared by reacting an amine R 1 NH 2  with a polyglycerine-1,2-chlorohydrin or a glycerine- or polyglycerine-glycide ether, usually at 0- 100‹ C. in the presence of a solvent and an HCl acceptor to form a secondary amine which is subsequently acylated with a halide, anhydride or ester of a carboxylic acid R 2 COOH, or with the free carboxylic acid, usually with the methyl ester at 130-160‹ C. The acid R 2 COOH and amine R 1 NH 2  may be derived from natural products such as coconut fat and tallow oil. The products have surface-active, brightening and emulsifying properties. In the examples, N-octadecyl- and N-coconut alkylpolyglycerylamines and N-diglyceryl-ethyl, -dodecyl, -tetradecyl, -hexadecyl, -octadecyl, - coconut alkyl and -tallow alkylamines are prepared by treating an ethanolic solution of equimolecular amounts of polyglycerine-1,2-chlorohydrin and the appropriate primary amine with the calculated amount of 40% NaOH solution under reflux.
Patent GB-1523379-A (GB)
Title: Water heaters and water heating systems embodying the sam
IPC: F28D20/00
Filed: 1976-09-17
Abstract: 1523379 Central heating systems; solar heaters; hot water supply L L HORWITZ 17 Sept 1976 38727/76 Headings F4U and F4A A heating system comprises a thermally insulated reservoir 1 for water, the reservoir providing lower and upper intercommunicating chambers 2, 3. Water in the lower chamber is heated by being extracted from a lower portion of the chamber, passed through a heat exchanger 12 where it is heated by solar radiation, or wind power and then returned to an upper portion of the chamber. Water from the upper portion of the upper chamber is passed through room heating radiators and then returned to the lower portion of the upper chamber. The water is circulated through the two circuits by respective pumps 10,15 which may be thermostatically controlled. The chamber 3 contains a hot water supplier 18, provided with a heater 17, for heating cold water supplied through a pipe 19 and passed to an outlet pipe 20. The structure 5 between the two chambers may be provided with arrays of pipe stubs 7, 8 for allowing the passage of relatively warm water from the lower to the upper chamber and of relatively cold water from the upper to the lower chamber. Alternatively, the structure may be replaced by a bell-shaped structure, Fig. 2 (not shown) having a central opening for the upward passage of warm water and providing an annular opening adjacent the wall of the chamber for the downward passage of cool water. In a further embodiment, Fig. 5, the structure 5 is replaced by a wall structure 31 in the form of a pressure vessel for preheating fresh water supplied through the pipe 19 to the hot water supplier 18. A heat pump system is also provided and comprises an evaporator 38 in the lower chamber, a condenser 40 in the upper chamber 3, and a compressor 39. The system may constitute an auxiliary heating system coupled to a heating system provided with a conventional boiler, Fig. 3 (not shown).
Patent GB-375336-A (GB)
Title: Improvements in and relating to variable speed gearing
IPC: F16H3/66
Filed: 1930-12-24
Abstract: 375,336. Variable-speed gearing. PRENDERGAST, C. S. and PRENDERGAST, R. S., 116, Fordwych Road, Hampstead, London. Dec. 24, 1930, No. 38824. [Class 80 (ii).] Variable-speed gearing comprises two epicyclic trains of different ratios side by side, and a slipping friction clutch or variable-speed gear for allowing relative motion between corresponding elements of the trains. The internal gears 13, 16 of the two trains are fast to the driven shaft 5, which is in line with the driving- shaft 4. The planet gears 17 of one train, and the planet gears, not shown, of the other train are supported in the same loose carrier 10. Fast on shaft 4 are one sun gear 8 and a clutch member 21 adapted to engage a clutch member 20 connected by a sleeve to the other sun gear 19. By allowing slip between the members 20, 21, varying forward speeds are imparted to the shaft 5. The rotary clutch member 21 is adapted to slide axially along with a non-rotary brake member 24 under hand control from a shaft 26. Reversed driving is effected by engaging the brake cone 24 with a brake rim 25 on the planet-carrier 10. A modification is described in which both sun gears are fast on the driving shaft and the slipping clutch or variable gear is interposed between separate carriers supporting the planet gears of the two trains.
Patent GB-845072-A (GB)
Title: A method for the decolorization and stabilization of benzyl chloride
IPC: C07C17/395
Filed: 1958-12-02
Abstract: Benzyl chloride of a stable colour is obtained by mixing benzyl chloride thoroughly with hydrogen peroxide.  The process may be carried out by leaving the hydrogen peroxide for some days in contact with the benzyl chloride and finally dehydrating the benzyl chloride with a suitable solid dehydrating agent e.g. anhydrous potassium carbonate.  Examples are furnished.
Patent GB-1513007-A (GB)
Title: Method and apparatus for detecting the presence of one or more predetermined compounds
IPC: G01N30/84
Filed: 1975-09-23
Abstract: 1513007 Gas analysis; analysis using chromatography THERMO ELECTRON CORP 23 Sept 1975 [7 Oct 1974] 39006/75 Heading G1B A method of detecting the presence of one or more predetermined compounds in a sample comprises passing a liquid solution of the sample through a high-pressure liquid chromatograph to produce a liquid phase effluent from the chromatograph, combusting the liquid phase effluent whereby the effluent is converted to combustion products in a gaseous phase and wherein the predetermined compounds form specific gases, passing the gaseous combustion products to one or more specific gas detectors, and operating the or each detector so that the presence, if any, of a specific gas in the combustion products is detected and the presence or otherwise of a predetermined compound in the sample is thereby indicated. In the figure, solvent from a reservoir 10 is mixed with a sample and injected into a chromatographic column 16, the effluent combusted in an oxygenrich flame or furnace 18 and the gas product led through detectors for (i) nitric oxide 28 to determine the nitrogen content of the sample, (ii) sulphur dioxide 30 (sulphur content of sample), (iii) carbon dioxide 32 (carbon content of sample) and (iv) halogen 33 (halogen content). The nitric oxide detector may include means to react the gas with ozone in a chemiluminescent reaction, the light produced in the wavelength region of 0À6-2À8 microns being measured.
Patent GB-1026174-A (GB)
Title: Improvements relating to electrical modulating circuits
IPC: H03C1/54
Filed: 1962-10-15
Abstract: 1,026,174. Amplitude modulation systems. GENERAL PRECISION Inc. Oct. 15, 1962 [Oct. 18, 1961], No. 39009/62. Heading H3R. An amplitude modulator comprises an unbalanced bridge formed of three resistors 11-13 and a transistor 14, carrier being applied to the junction of a resistor 19 and diode 20 forming one diagonal, and modulation to the transistor to vary its emitter/collector impedance in the bridge. Output is then derived from a transformer 21 in series with the diagonal, and passes through transistor amplifier 25 to an emitter-follower 26 and output transformer 48 also energizing through a rectifier 28, 29 a modulation negative feedback path to the transistor 14 to linearize the modification. Negative feedback is also applied to the transistor 14 from the bridge through a resistor 31, also providing bias for the transistor 14 from the negative operating potential-E applied to the bridge. Network 45, 46 provides carrier negative feedback. The modulation frequency may be up to 1/5th the carrier frequency.
Patent GB-1270663-A (GB)
Title: Improvements in or relating to ferrimagnetic microwave devices
Inventor: HUDSON ANDREW SEYFANG
IPC: C04B35/26
Filed: 1968-08-15
Abstract: 1,270,663. Magnetic garnets. MARCONI CO. Ltd. 12 June, 1969 [15 Aug., 1968], No. 39016/68. Heading H1H. A ferrimagnetic garnet material containing either gadolinium or indium has a formula corresponding to Y 3-2x Ca 2x Fe 5-x V x O 12  or Bi 3-2x Ca 2x Fe 5-x V x O 12  (0<x#1À5) or a solid solution, of the two, modified by partial or complete substitution of Fe by A1 and/or Ga and/or In; and/or by partial or complete substitution of Ca and/or Y and/or Bi by Cd and/or another rare earth metal e.g. Dg. In one embodiment, the material has the formula (MA<SP>3+</SP>) 3-2x-a-b Gd a R b Ca 2x Fe 5-x-y-z V x (M B <SP>3+</SP>)y x In z O 12  where  R = rare earth metal ion provided that if: the materials are used in microwave devices operating at cryogenic temperatures.