baber/WOPTO huggingface dataset:
Patent GB-298049-A (GB)
Title: Improved means for disengaging the feed dog operating means in household sewing machines
IPC: D05B27/24
Filed: 1928-04-05
Abstract: 298,049. Debertin, J., and D³rhoppwerke Akt.-Ges. April 5, 1928. Feed by dog.-A household sewing machine is adapted for embroidering by disconnecting the feed-dog operating means from the dog which then drops below the throat plate. The dog g is operated vertically by the stud f on a plate e which in turn is operated by the bolt c of a plate b when moved forward through the plate d fixed in the rock shaft a to engage the plate e by the rod h which has an operating knob m above the base plate k. When the bolt c is withdrawn from the plate e the feed dog drops on to the abutment n below the throat plate, and the plate e is uncoupled from the fixed plate d of the rock shaft. The conical end of the bolt c enables the bolt to engage the bore in the plate e even when the machine is working.
Patent GB-1405080-A (GB)
Title: Reduction of dissolved organic lead content in  aqueous  solutions
IPC: C02F1/52
Filed: 1974-03-07
Abstract: 1405080 Reduction of organic lead content in aqueous solutions ETHYL CORP 7 March 1974 [23 March 1973 9 July 1973] 10338/74 Heading C1C A process for reducing the soluble organic lead content of an aqueous solution comprises (a) treating the solution by contacting it with Fe (II) ions and a water-soluble borohydride salt and (b) separating the resulting insoluble leadcontaining product. Additionally the aqueous solution may be contacted with a water-soluble high MW anionic polyelectrolyte, e.g. acrylamide polymer. The process is useful for treatina effluent from alkyl lead manufacture. The pH is 9 to 11, and a temperature of 15-50‹ C. is preferred. Organic lead concentrations are reduced to less than 1 ppm.
Patent GB-801231-A (GB)
Title: Improvements in luminaires
IPC: F21V5/00
Filed: 1956-04-04
Abstract: 801,231. Luminaires. HOLOPHANE CO., Inc. April 4, 1956 [April 4, 1955], No. 10357/56. Class 75(2) A luminaire especially for corridor lighting comprises an elongated bowl having a horizontal upper edge, substanially vertical parallel sides, rounded ends converging downwards and an externally converging bottom, with prismatic means in the sides to direct light from an central source upwards and downwards, prismatic means in the ends to direct the light upwards, downwards and laterally, prismatic means in the bottom central part to reduce the lateral spread of light and increase it longitudinally and prismatic means in the ends of the bottom to spread the light laterally and downwards. Viewed externally, the sides and ends of the bowl have panels V and I, Fig. 1, of prisms in horizontal rows and the bottom has end panels II and corner panels VI of prisms arranged transversely, side panels III with narrow, and a central panel IV with wide, prisms arranged longitudinally. Viewed internally, the corresponding panels I' and II<SP>1</SP>, Fig. 2, have vertical prisms; panels III<SP>1</SP> have narrow and panel IV<SP>1</SP> wide transverse flutes; panels V<SP>1</SP> have vertical flutes; and panels VI<SP>1</SP> longitudinal flutes. The flutes in panels V<SP>1</SP> need not extend the full length of the panels. The vertical sides of the bowl may be shorter than the length, the ends being rounded. The length/width ratio of the bowl may be 3:2 and the length/depth ration 3:1.
Patent GB-755133-A (GB)
Title: Improvements in or relating to the production of magnesium
IPC: C22B26/22
Filed: 1954-04-08
Abstract: 755,133. Distilling magnesium. SOBERMA SOC. DE BREVETS D'ETUDES ET DE RECHERCHES POUR LE MAGNESIUM. April 8, 1954 [April 9, 1953 ; Feb. 27, 1954], No. 10380/54. Drawings to Specification. Class 82(1). Magnesium is produced by forming a mixture of a magnesium compound, such as magnesia or dolomite or both, with a sulphide of a metal other than iron, such as aluminium sulphide, and iron or an alloy having a predominant content of iron, such as a ferro-silicon, introducing the mixture into a reaction chamber and submitting it to a high temperature in vacuum, e.g. 1100‹-1150‹C. under a pressure of 0-0001- 0À01 m.m. of mercury. Ferro-silicon poor in silicon or a mixture thereof with iron may be used as reducing agent the reaction temperature being 1250‹-1300‹C. and the pressure 0À005-0À1 m.m. mercury. Preferably the reactionmixture is brought into contact with the surface of a body of molten slag maintained at about 1600‹C. under a pressure of 2-10 m.m. mercury the amount of successive charges being such as to cause formation of slag crust which will support the reactants till the reaction is substantially complete. The reaction mixture may contain up to 5 per cent by weight of one or more alkaline earth fluorides. Preferably excess iron is used, this excess facilitating the separation of iron sulphide from the slag produced in the reaction. The iron sulphide may be used to react with alumina or a substance containing alumina, in the presence of carbon, so as to regenerate aluminium sulphide.
Patent GB-995260-A (GB)
Title: Tertiary phosphine oxide detergents
IPC: C09K23/00
Filed: 1962-03-19
Abstract: Tertiary phosphine oxides of formula RR1R11P-->O where R is C10- 8 alkyl, alkenyl or monohydroxyalkyl, and R1 and R11 are C1- 3 alkyl or monohydroxyalkyl, are prepared by reacting a Grignard reagent or reagents with a halophosphine or halophosphine oxide containing the radical R and if necessary oxidizing the resulting phosphine derivative to the phosphine oxide, e.g. with hydrogen peroxide. R may be derived from a mixture of groups. Tertiary phosphine oxides of the above type other than those in which R is 1,2-alkenyl are claimed per se.  The products are used in detergent compositions (see Division C5).  Dodecyldichlorophosphine is prepared by the action of PCl3 on an ethereal solution of didodecylcadmium obtained by adding cadmium chloride to dodecyl magnesium bromide.  Dodecane-, tetradecane- and octadecane-phosphonyl dichlorides are obtained by the action of PCl5 on the appropriate alkanephosphonic acid obtained by hydrolysis with HBr of the dibutyl esters, prepared from dibutyl phosphite and the appropriate alkyl bromide.ALSO:A detergent composition comprises from 5 to 80% by weight of a tertiary phosphine oxide RR1R11P-->O where R is C10- 18 alkyl, alkenyl or monohydroxyalkyl, and R1 and R11 are C1- 3 alkyl or monohydroxyalkyl, and from 95 to 20% by weight of anionic organic detergent, nonionic organic detergent, water soluble inorganic alkaline builder salt, organic sequestering agent or a mixture of any of these.  The composition may be in bar, granular, powder or aqueous solution form.  Anionic detergents, any of which may be used in the form of sodium, potassium, ammonium and alkylolammonium salts, include soaps, alkyl glyceryl ether sulphonates, alkylsulphates, alkyl monoglyceride sulphates or sulphonates, polyethylene glycol monalkyl ether sulphates, acyl sarcosinates, acyl isethionates, acyl N-methyl taurides, alkylbenzene sulphonates, alkylphenol polyethenoxy sulphonates. Nonionic detergents include ethylene oxide condensates of alkylphenols, of propylene oxideethylenediamine condensates and of C8- 18 alcohols, and C10- 18 alkyl di-(C1- 2 alkyl) amine oxides.  Builders include alkali metal carbonates, borates, phosphates, polyphosphates, bicarbonates and silicates.  Sequestering agents include alkali metal ethylenediamine tetraacetates, N-(2-hydroxyethyl) ethylenediamine triacetates, nitrilo triacetates, N-(2 - hydroxyethyl) - nitrilo diacetates, and phytates.  Other substances which may be present include sodium sulphate, tallow fatty acid, corn starch, silica flour and carboxymethylhydroxyethyl cellulose.
Patent GB-320066-A (GB)
Title: Improvements in resilient driving gear particularly for half speed shafts of internal combustion engines
IPC: F16D13/64
Filed: 1928-04-10
Abstract: 320,066. Royce, F. H. April 10, 1928. Flywheels.-In the damped resilient driving- gear of an engine, one or more of the axiallymovable plates of the friction damper have each one or more integral or other axially-flexible radial extensions from the outer or inner periphery, one edge of the-or each-extension being fixed, as by clamping, to the driving or driven member, in order to avoid rotational slack. The forward end a of an internal-combustion engine crankshaft carries a starting-handle clutch c<8>, a fan-belt pulley c, an auxiliary damping-flywheel b, b<1>, and the driving-pinion l for the half-speed shaft, the parts c, l being respectively keyed and bolted to the flywheel, which is loose on the shaft- Springs e' bear on lugs e on the flywheel-half b' and on lugs d<4> on members d, d', secured to the shaft a and gripping betwen them one damping- disc h. A friction disc i is riveted to the part b<1>, and a presser-plate j<3>, pressed by springs k, is riveted to the inner edge of a corrugated, springy metal ring j, the outer edge of which is clamped between the flywheel-halves b, b<1>.
Patent GB-297355-A (GB)
Title: Improvements relating to blank holder cushioning devices in presses for drawing plates or sheets
IPC: B21D24/08
Filed: 1928-04-10
Abstract: 297,355. Schuler Akt.-Ges., L. Sept. 19, 1927, [Convention date]. Piston packing; substitutes. - The cushioning device for a press for drawing metal plates or sheets comprises pistons b, f which are packed by means of cup-leathers pressed outwardly by spring rings. The piston b is also provided with a liquid seal exposed to the air pressure in the cylinder m.
Patent GB-105745-A (GB)
Abstract: 105,745. Parke, Davis, & Co., (Assignees of Thorp, L., and Wildman, E. A.). April 17, 1916, [Convention date]. Alkamine esters.-Anisic esters of gamma-dialkylaminopropyl alcohols are obtained by reaction of the alkamines with an anisoyl halide. An example is given of the preparation of the anisic ester of gamma-diethylaminopropyl alcohol. The esters and their salts are local anµsthetics. The Specification as open to inspection under Sect. 91 (3) (a) refers to anisic esters of alkamines in general. This subject-matter does not appear in the Specification as accepted. gamma-Dialkylaminopropyl alcohols.-The preparation of gamma-dipropylaminopropyl alcohol and gamma -dimethylaminopropyl alcohol from trimethylene chlordydrin and dipropylamine or dimethylamine respectively is described.
Patent GB-747529-A (GB)
Title: Improvements in or relating to insulated flasks
IPC: A47J41/00
Filed: 1954-04-09
Abstract: 747,529. Cold and heat retaining vessels. SOMMERFELD, R., and SOMMERFELD, J., [trading as SOMMERFELD, E., [Firm of]]. April 9, 1954 [April 11, 1953; Nov. 17, 1953], No. 10588/54. Class 64(2). [Also in Group XVII] A flask 20, has an insulating and protective casing consisting of at least two detachable portions 23, 24 which may interengage at 25 by a screwed joint or by over-lapping edges, the upper portion 23 being pushed over the neck 21 of the flask and being held by means of a resilient sleeve 30 pulled over the neck of the flask and engaging the edge of the portion 23, while the lower portion 24 serves as a drinking or eating vessel. As shown, an insulating layer 42 of air is formed between the flask 20 and the casing 23, 24, the inner surface of the casing and/or the outer surface of the flask being formed with ribs or projections 40, 41 for this purpose. A strap 29, which may also retain the lower portion 24 in engagement with the upper portion 23 may be provided and may run through a recess 28 in the bottom 27 of the casing.
Patent GB-541822-A (GB)
Title: Improvements in the construction of arches, vaulted roofs and other structures of curved form
IPC: E04B7/08
Filed: 1940-06-20
Abstract: 541,822. Building blocks. DAVEY, N. June 20, 1940, Nos 10611 and 11731. [Class 87 (i)] A building block for arched constructions is furnished with a projecting lug B and with recesses C in its end faces which when two similar blocks are placed in contact can engage the lug of a block in the adjacent course. The face of the block may be recessed for the reception of reinforcing rods; transverse holes N may also be provided for this purpose.
Patent GB-106748-A (GB)
IPC: B60C19/12
Abstract: 106,748. Odell, L. S. Sept: 26, 1916. Jackets and covers. - The air-tube 3 is completely enclosed in a thin steel tube 1, lap-jointed at 2, and between this and the ordinary outer-cover 11 are arranged two canvas shields 4, 5 separated by a metal band built up from three strips 7, 8, 9 brazed &c. together. The central strip 7 is preferably thicker than the side strips 8, 9, which are notched at 19 to form overlapping tongues 20. At the inner periphery of the tube, a rubber strip 16 is fitted, as shown.
Patent GB-165579-A (GB)
Title: Improvements in caps for personal wear
IPC: A42C5/04
Filed: 1920-04-17
Abstract: 165,579. Marks, N. April 17, 1920. Caps; ventilating.-Cloth caps are ventilated by one or more eyelets d in the lining only. Holes strengthened by buttonhole stitching may be provided instead of eyelets. The outer material of the cap is not perforated, but is preferably coarsely woven.
Patent GB-1383869-A (GB)
Title: Method of constructing a low temperature liquefied gas tank of the membrane type
IPC: F17C3/06
Filed: 1973-03-06
Abstract: 1383869 Cryogenic tanks BRIDGESTONE LIQUEFIED GAS CO Ltd 6 March 1973 [25 March 1972] 10819/73 Heading B7A [Also in Division F4] A method of constructing a cryogenic tank for a tanker comprises the steps of constructing an inner tank assembly 5 composed of inner and outer membrane vessels 9, 8 and a carrying structure 12 therefor, inserting the assembly 5 in a rigid outer hull 1, and filling the space between the side walls of hull 1 and assembly 5 with a heat insulating material 20 while expansion means 21 urge the walls of vessels 8, 9 inwardly so as to create a marginal slack in these vessels to compensate for the contraction that they experience when filled with a cryogenic liquid. The construction site for assembly 5 has a saddle frame 6 and protecting plate 7a laid on a base panel B. Bottom panel members 8a, 9a of vessels 8, 9 are laid on protecting plate 7a which is of plywood. Then sidewall portions 8b, 9b of vessels 8, 9 are supported by scaffolds S and welded to respective bottom plates 8a, 9a. The carrying structure 12 comprises a tank cover 10, a heat insulation 11, a central tubular member 13 connected via flange 14 with roof panels 8c, 9c of vessels 8, 9, and cantilevers 15 extending outwardly from the base of member 13 to support panels 8c, 9c. When it is desired to lift the assembly 5 by crane 18 the saddle frame 6 is suspended from cover 10 by suspension means 16. The assembly 5 is inserted into the hold provided by hull 1 and a protecting plate 7b is laid against the side of vessel 8, hydraulic jacks 21 being then inserted between hull 1 and plate 7b to urge the membrane vessels inwardly by the desired amount, the interior of the vessel being subjected to a pressure to prevent inward collapse of the vessels 8, 9 during the insertion of the heat insulation 20. As the heat insulation is fed into its space each jack 21 is removed when the level of material 20 reaches it and solidifies. Tank cover 10 is fixed to the ship's deck, and in performing this operation the vessels 8, 9 are compressed by an amount corresponding to the contraction when the vessels hold the cryogenic liquid. The insulation may be formed by a bed of foamed sulphur mixed with reinforcing material such as glass wool or pearlite. Pearlite concrete may be used. The vessels 8, 9 are made of nickel steel, stainless steel or aluminium.
Patent GB-733355-A (GB)
Title: Improvements in or relating to sectional flooring
Inventor: FILKIN DENIS RAGG
IPC: E04F15/04
Filed: 1952-04-30
Abstract: 733,355. Parquet flooring units. PANEL PARQUETRY, Ltd. March 30, 1953 [April 30, 1952], No. 10841/52. Classes 20 (4) and 87 (1). A prefabricated flooring unit for a parquet floor comprises a plurality of hardwood surface blocks 11-22 glued to base strips 23, 24, 25, the strip 25 being displaced in the longitudinal direction such that at all edges of the unit portions of the blocks overlap the base to leave comparatively smaller uncovered portions asymmetically arranged as to opposite sides of the unit whereby several units may be placed in interlocking edge-to-edge abutment with their respective bases wholly spaced from one another. In laying a floor one unit is first secured in the centre of the floor by nailing through the uncovered portions 23a, 24a, 25a if the sub-surface is wooden or, if the subsurface is concrete, by drilling through these uncovered portions and the concrete beneath and driving in wooden pins. Succeeding units are secured only at one end through their portions 23a, 25a or 24a, the overlapping portions at the edges of the floor being removed by a special saw allowing for the insertion of border strips.  Reference has been directed by the Comptroller to Specification 677,335.
Patent GB-1494780-A (GB)
Title: Method and apparatus for washing articles
IPC: B08B3/04
Filed: 1975-03-14
Abstract: 1494780 Washing bottles MILPRO NV and CENZAD MANAGEMENT AG 14 March 1975 [19 March 1974] 10861/75 Heading B8T An apparatus for washing articles, such as bottles, is provided with a plurality of treating stations, each of which is provided with a treating liquid bath of spraying installation and is located in a first or a second portion of a treating path where the temperature of the articles can be increased or decreased respectively through contact with treating liquid, characterized by a closed heat transport circuit through which a heat transport medium can flow, said circuit including a heat exchanger, for withdrawing heat from the treating liquid in the second part of the path, a heat exchanger for supplying heat to the treating liquid in the first part of the path and a compressor therebetween for compressing the medium. The initially gaseous medium is compressed to increase its temperature, subsequently liquefied to supply heat to the treating liquid and finally expanded back to the gaseous state by absorbing heat from the treating liquid. If the medium always remains in the gaseous state, it is expanded to reduce its temperature before absorbing heat from the treating liquid. The treating liquid, either water or cleaning liquid, travels in circuits between the treating stations with conditioning means, such as filters, neutralizers and sterilizers provided in at least one of the circuits.
Patent GB-475085-A (GB)
Title: Improvements in and relating to marine water tube boilers
IPC: F22B21/04
Filed: 1936-05-12
Abstract: 475,085. Ashpits. BAUER, G. May 12, 1936, No. 11132/37. Divided out of 474,087, [Group XIII]. [Class 51 (i)] [Also in Group XIII] In a marine water - tube boiler, tubes 11 which lie beneath the furnace grate and connect an external water chamber 10 with a lower drum 2 may be arranged so as to serve as an ash granulating grid.
Patent GB-730579-A (GB)
Title: Improvements relating to methods of tapping main power lines and to fasteners for use as line taps
Inventor: GREGORY ARNOLD
IPC: H01R4/62
Filed: 1952-05-02
Abstract: 730,579. Connecting cables &c. ALUMINIUM LABORATORIES, Ltd. April 15, 1953 [May 2, 1952], No. 11138/52. Class 109. [Also in Group XXXVI] A main line cable 8 is tapped by a fastening device comprising a waisted body 1, preferably of aluminium section, with apertures 3, 6 for the tap line 4 and main line 8 respectively, the aperture 6 being closed by a keeper 2, furnished with a fin 11 and horns 12, which is slid into place over the cable 8, the fastener being then subjected to high pressure in a hydraulic or other tool whereby suitably-shaped dies press the metal of the fastener device into intimate contact with the main cable and tap line.
Patent GB-1359977-A (GB)
Title: Apparatus for feeding workpieces
IPC: B65G29/00
Filed: 1973-03-07
Abstract: 1359977 Transferring between conveyers CARLE & MONTANARI SpA 7 March 1973 [9 March 1972] 11149/73 Heading B8A Articles P are arrested on a conveyer T1 by a stop 2 and are transferred to a second conveyer T2 by grippers T depending from a turntable 22, the articles being spaced regularly on the second conveyer T2. Each gripper T comprises two jaws 34, 35 secured to pivotal toothed segments 31, 32 which engage with a rack 133 carried by a rod 33 which is reciprocated, to open and close the jaws 34, 35, by means of a circular cam 46, the rod 33 being connected to an arm 38 carrying a roller 44 which follows the cam 46. The rod 33 passes through a gripper body 26 slidably and rotatably supported by the turntable 22, the body 26 being connected to an arm 37 carrying a roller 43 which follows a cam 45 to raise and lower the gripper. A gear-wheel 24 is splined to the body 26 and meshes with a gear 27 meshing with a stationary gear 28. Thus, as the turntable rotates, the grippers rotate to deposit the articles transversely of the second conveyer 72. The stop 2 is moved out of the path of the articles during transfer, but is prevented from so doing if a photo detector 3, 103 detects that no article is adjacent the stop 2 or that an article is incorrectly aligned on the conveyer. In such cases the photo-detector also causes a movable cam track (51, Fig. 10) to be pivoted into a position adjacent the cam track 46 so that a second roller 50 on the arm 38 engages the movable track (51) to prevent the jaws 34, 35 of the gripper from being closed.
Patent GB-381869-A (GB)
Title: Improvements in aircraft having rotative sustaining means
IPC: B64C27/02
Filed: 1932-04-19
Abstract: 381,869. Brakes. CIERVA AUTOGIRO CO., Ltd., Bush House, Aldwych, London. April 19, 1932, No. 11180. Convention date, June 19, 1931. [Class 103 (i).] An aircraft having a sustaining rotor is provided with braking means for bringing the rotor to rest. In one form, Fig. 4, the annular gear ring 76 is located on a peripheral flange 78 of the brake drum and a brake is employed of the type shown in Fig. 5, wherein 83 is a fixed eccentric member and 81 a rotatable eccentric member, the two members 81, 83 having coacting ring flanges 84, 85 separated by a floating bush 86. Member 81 has a peripheral flange carrying friction material 88. The friction material 88 is forced against drum 42 by rotating member 81 in a direction against that of rotation of the drum 42. The operating means comprise a vertical shaft 89 carrying a lever 90 at its lower end connected to a pull-on cable 91 leading to the pilot's cockpit, and a lever 94 at its upper end connected by a link 95 with a stud 96 on member 81. Shaft 89 is supported by bearing in member 33 and passes through a slot 93 in member 81. A pull-off spring 97 is arranged to react on a shackle 99 fixed to the upper end of shaft 89. Various arrangements are described for preventing oil leaking from the rotor hub bearings 38 finding its way to the coacting brake surfaces.
Patent GB-200915-A (GB)
Title: An improved method of producing artificial building materials
IPC: C04B28/10
Filed: 1922-04-20
Abstract: 200,915. Decking, C. April 20, 1922. No Patent granted (Sealing fee not paid). Concretes.-In the manufacture of building elements from a composition comprising lime, an alkali carbonate, and filling materials such as sand, with or without other binding-agents such as cement, the alkali carbonate solution is incorporated with a finely-divided inert material such as hydrated ferric oxide before addition to the other ingredients, in order to delay setting -until the composition is moulded under pressure.
Patent GB-901383-A (GB)
Title: Improvements in and relating to lawn mowers
Inventor: MUNDY ARTHUR ELLIOT
IPC: A01D57/01
Filed: 1960-03-31
Abstract: 901,383. Lawn mowers. BAKER, R. K. May, 12, 1961 [March 31, 1960], No. 11322/60. Class 6(2). In a lawn mower having blades 12 mounted on a shaft 13 driven through chain gearing from a motor-driven roller 14, an axle 16, mounted so as to be adjustable vertically and carrying driving wheels 23, supports a roller or cylinder 22 provided with spokes 24 to raise and feed the grass to the blades 12. The spokes may comprise metal rods secured in diametrically disposed bores in the roller so as to project therefrom at each end, or be individually secured to the axle. The axle may be detachable from its wheels 23 and the mower, there being provided a handle having a yoke in which the axle may be rotatably mounted and used as a separate garden tool.