baber/WOPTO huggingface dataset:
Patent GB-195297-A (GB)
Title: Improvements in apparatus for preparing coffee
IPC: A47J31/40
Filed: 1922-05-08
Abstract: 195,297. Bossi, E., and Soc. Anon. la Victoria Arduino. May 8, 1922. Infusing.machines. - A coffee-making machine comprises a number of hollow pistons in a rotating disc which brings them successively opposite a hopper for ground coffee, a hot-water inlet, and a discharge for grounds, which are expelled by inner pistons working in the outer pistons and carrying strainers through which the infusion escapes. The disc 12 is journaled on a sleeve 11 depending from the cover plate 12, and is rotated by a projection 23 on a reciprocating arm 10 striking against tappets 24 on the disc. The arm 10 terminates in a threaded sleeve 18 screwing into the plate 1 and having an internal thread in which works the screwed head of a rod 20, the two screws being of opposite pitch. The rod 20 is connected to a lever 21, so arranged that when the rod 20 is raised by turning the arm 10 the hollow piston 13 which is below the water inlet 3, and which has been previously filled with ground coffee from the hopper 7. is pressed against packing 5 on the plate 1. The infusion escapes through a strainer and openings in the inner piston 14. As the disc 12 is moved on when the handle 10 is again operated a fixed cam 17 forces the piston 14 upwards and expels the grounds through a discharge opening in the plate 1. The coffee is agitated in the hopper 7 by a stirrer operated by the arm 10. In a modification a piece can be placed in position above the cam to regulate the amount of coffee received from the hopper 7.
Patent GB-419211-A (GB)
Title: Improvements in apparatus for applying stoppers, corks, lids or the like to bottles, jars and similar containers
IPC: B67B3/22
Filed: 1933-05-05
Abstract: 419,211. Corking and stoppering. ROBERTS, T., 33, Deane Road, Bolton. May 5, 1933, No. 13097. [Class 125 (ii).] - An apparatus for applying corks, lids, &c. to bottles, jars, &c. comprises pressing members 2 mounted on spindles 3 carried by rotary discs 4a in such a manner that the lower surfaces of the discs are always horizontal. Pins 18<a> travel in an annular member 19 and maintain the members 2 in the horizontal position. The jars &c. 42 are fed on a conveyer 40 and means are provided to allow the members 2 to yield if any obstacle is encountered. An adjusting screw is provided for raising or lowering the operative position of the members 2.
Patent GB-407836-A (GB)
Title: Improvements in or relating to collapsible containers
IPC: A47K3/06
Filed: 1933-05-05
Abstract: 407,836. Baths. VERDINI, J. L. J. R., Grand Rue, Mortain, Manche, France. May 5, 1933, No. 13140. Convention date, Oct. 25, 1932. [Class 26.] A collapsable tub, e.g. a portable bath tub, comprises a suitcase, which may be watertight, and rigid rectangular panels forming a collapsable extension thereto, means being provided to hold the panels so that they slope upwardly and outwardly with respect to the walls of the suitcase. Triangular surfaces fill the spaces between the extended panels, the surfaces being attached either to one or both of the panels between which they lie. In one form, Figs. 1 and 2, the panels 3 are formed of frames 3<1> covered with rubber or other similar cloth and are connected together by triangular surfaces 4 made of the same flexible material, the panels being held in extended position by hooks 5 attached to the inside of the walls of the suitcase 1. In another form, Figs. 1 and 3, the panels 3 are hinged at 6 to downwardly and inwardly sloping flanges 7 extending from the upper edges of the suitcase walls and rigid triangular surfaces 4<1>, each connected by hinges 8 to one of the panels 3, close the spaces between the panels in the extended position. In the form shown in Fig. 4 there is provided a frame 9 with a downwardly and inwardly sloping flange 7 to which the panels are hinged, the frame being normally accommodated between the suitcase 1 and its lid 2.
Patent GB-400307-A (GB)
Title: Improvements relating to switch apparatus for the control of electric circuits
IPC: H01H19/64
Filed: 1932-05-07
Abstract: 400,307. Mechanical switches without quick-action. KERSHAW, A. G. and WESTINGHOUSE BRAKE & SAXBY SIGNAL CO., Ltd., 82, York Road, King's Cross, London. May 7, 1932, No. 13218. [Class 38 (v).] A switch comprising contact segments 9 mounted on a rotatable shaft 8 and adapted to engage fixed contacts 5 connected to the circuit or circuits to be controlled, is operated by a sliding member 12 in the form of a longitudinal section of a hollow cylinder with its axis coincident with the axis of rotation of the shaft, an arm 16 projecting radially from the shaft engaging a cam slot 18 in the member 12. The member 12 is provided with a lug or eye 23 for effecting its longitudinal displacement, and slides in guides 13 secured to a channel-shaped base member 1. The end of the arm 16 engaging the cam slot may be provided with a roller 17. The switch may be utilized in connection with interlocking railway points or signal lever mechanism, the point or lever being coupled to the lug 23, and the contacts 5 being arranged to control the circuits of the lever-locking mechanism. It may also be applied to the electric indication or control of railway points or signals.
Patent GB-714463-A (GB)
Title: Improvements in the alcoholysis of polyvinyl esters
Inventor: GERMAIN LEO MARCEL
IPC: C08F8/12
Filed: 1952-05-24
Abstract: A polyvinyl ester of an unsubstituted, saturated aliphatic monocarboxylic acid is alcoholyzed by reacting with excess methanol under mild mechanical working, in the presence of an alkaline catalyst and a petroleum distillate fraction whose maximum boiling point is below 200 DEG C. in sufficient amount to produce a two-phase system during reaction, all of the polyvinyl ester being in solution in the methanol at the beginning of the reaction, the petroleum fraction inverting during the reaction from dispersed to dispersing phase.  Polyvinyl acetate is the preferred ester, others being the formate, propionate and butyrate; copolymers of up to 50 per cent. ethylene, and acrylic and methacrylic acids and esters may also be used.  A small proportion of water, e.g. 1-5 per cent. of the polymer, may be present.  Up to 50 per cent. of the methanol may be substituted by the methyl ester corresponding to the polyvinyl ester. The reaction may be effected at temperatures of 10 DEG  to 40 DEG C. in a kettle equipped with egg-beater type stirrers, the petroleum fraction being added to the solution of reactants as the viscosity begins to increase.  A gel is formed which proceeds to break down to a powder which is easily separable from the mixture. Suitable catalysts are the alkali metal hydroxides or alcoholates. The weight ratio of methanol to petroleum fraction may vary from about 2.5 to 0.9.  Partial or complete hydrolysis may be obtained. Specification 512,001 and U.S.A.  Specification 2,266,996 are referred to.
Patent GB-132447-A (GB)
IPC: B24D15/10
Abstract: 132,447. Brown, C. R., and Brown, L. C. March 11, 1919. Razors, safety. A holder for safety-razor blades comprising two pivoted or hinged members 1 between which the blade 4 is adapted to be held, and a guard 8, which protects one edge of the blade and also clamps the handle members together, is provided with grooves 7 situated centrally of the handle ends for engagement with the edges of the guard 8. Specification 23524/14 is referred to.
Patent GB-236352-A (GB)
Title: Improvements in steam generators
IPC: F22B7/12
Filed: 1924-05-29
Abstract: 236,352. Garrett, F. A., and Ransomes, Sims, & Jefferies, Ltd. May 29, 1924. Heating by indirect contact of gas-engine exhaust; return tube boilers. - A steam generator adapted to be direct fired or heated by exhaust gases from an internal-combustion engine, comprises two sets of fire tubes, one only being used when heating by exhaust gases, and both being used when heating by direct firing or by both means. Two drums 1, 2 are arranged one above the other, the upper having fire tubes 3, and the lower having fire tubes 5 and a furnace tubs 4. A connecting-box 6 has a branch 7 leading from the engine exhaust, and the waste gases pasthrough the tubes 3. When direct firing is in operation, alone or in conjunction with the waste gases, the combustion products pass through the tubes 5, 3, in series. The steam and water spaces are connected by tubes 9, 10.
Patent GB-134750-A (GB)
IPC: B42F17/02
Abstract: 134,750. Walls, T. R., and Carey, H. J. April 4, 1919. Clamping-devices.-Relates to filing means in connexion with cabinets, drawers, or receptacles, the means being also available for use as a book adjustment for library or other shelves. A pressure plate 6 which may be provided with roller feet 10 is resiliently controlled by spring- operated lazy-tongs 2. The springs 7 are fitted transversely of the lazy-tongs, which is pivoted at 3a to the plate 6, and the back of the drawer &c. or other fixed point.
Patent GB-950730-A (GB)
Title: Improvements in or relating to drill hammers
IPC: E21B21/00
Filed: 1960-04-14
Abstract: 950,730. Percussive tools. F. H. FLOTTMANN, [trading as INGENIEURBURO DIPL. - ING. F. H. FLOTTMANN]. April 14, 1960 [April 14, 1959], No. 13475/60. Addition to 876,766. Heading B4C. A drill hammer, having a central pipe for the supply of flushing water ending in a movable tube as described and claimed in the parent Specification, has, fitted to the end of the movable tube which extends into the bore in the steel shank, a seating sleeve which forms a seal between the tube and the bore. As shown, the movable tube 8 has a groove 11 into which is inserted a head 13 formed on a sleeve 12 which may have an outwardly bulged portion 14. The sleeve may end in a flared portion 15 or in a cylindrical portion, Fig. 5 (not shown). The steel shank is provided with an enlarged bore portion to allow entry of the sleeve.
Patent GB-1386852-A (GB)
Title: Coating apparatus and methods
IPC: B05B15/12
Filed: 1972-03-22
Abstract: 1386852 Electrostatic powder spraying RANSBURG CORP 22 March 1972 [22 March 1971] 13498/72 Headings B2F and B2L In a.powder spraying apparatus, powder entrained in air is supplied to an orifice 47, Fig. 2, in a disc assembly 10 and is deflected by deflectors 39, 40 into chamber 49, air being supplied via a passage 66, a plenum 67 and tangentially directed apertures 50, 52 to produce a swirling motion of the material in the chamber 49, from which it flows between deflector 41 and disc 15 whose edge 58 is earthed or electrostatically charged, the flow of material towards the edge 58 causing aspiration of air through an aperture 59 to assist the spraying. The width of the slot 81 between the disc 15 and the deflector 41 can be varied by adjustment of screws 69 acting through plastics spacers 82. The disc assembly 10 may be rotated. The edge 58 is electrostatically charged via a cable 25, safety resistor 80, conductive path 27 and a conductive coating 43, 65. The powder is fed from a fluidised bed 19, Fig. 1, by a venturi pump 17 and conduit 21. The bed 19 at its bottom includes a foraminous sheet through which air is blown upwardly. The articles 13 travel in a circular or "omega" shaped path around the disc assembly 10 which may be reciprocated by means 14. Air is supplied to the Venturi pump 17 via a hose 35, a pressure regulating valve 34, a solenoid valve 85 and a hose 32. Excess powder is collected in a filter-separator 72 below an inclined floor 73. In a modification, Fig. 4, the articles 13 are suspended within a cylindrical enclosure 70 at the bottom of which is located a foraminous grill 78 supported by an inverted conical member 79 which directs excess powder to a filter separator 72.
Patent GB-642813-A (GB)
Title: Improved tool holding and guiding device for a punching tool
IPC: B25D5/00
Filed: 1948-05-19
Abstract: 642,813. Centre punches. DUROSE, H. V. May 19, 1948, No. 13508. [Class 61(ii)] A centre punch 4 is slidably held in a supporting member 1 which is a permanent magnet. The two attracting flat surfaces 6 of the magnet forming the base 6 have a V- groove therebetween for engaging cylindrical surfaces. The punch 4 is held by circlips 5 in a circular, rectangular or triangular bore in the lug 2. In a modification, an attracting surface of the magnet is at the side of the holder, a groove being provided therein to guide the punch. In a further modification, the body is a U-shaped magnet.
Patent GB-855880-A (GB)
Title: Production of alpha hydroxyisobutyric acid
Inventor: GARDNER JAMES HAMILTON
IPC: C07C203/04
Filed: 1957-04-29
Abstract: a -Hydroxyisobutyric acid is produced by reacting isobutylene with dinitrogen tetroxide in a mole ratio of at least one mole of dinitrogen tetroxide per mole of isobutylene at a temperature below 40 DEG C. to produce a -nitratoisobutyric anhydride or a -nitratoisobutyraldehyde and mixtures thereof, and converting these products by oxidation and hydrolysis into a -hydroxyisobutyric acid. The dinitrogen tetroxide may be employed in the form of a mixture with dinitrogen trioxide.  The further oxidation and/or hydrolysis of the intermediates may be carried out at temperatures between 0 DEG C. and 150 DEG C.  The intermediates may be separated from the reaction mixture and subsequently converted or they may be treated in situ. Thus the only further treatment may be an additional standing at an elevated temperature.  Nitric acid may be added to facilitate the oxidation and the hydrolysis may be accomplished by use of water, aqueous acid solutions or aqueous alkali metal hydroxide solutions. The oxidation and hydrolysis may be carried out separately or as one step.  Subsequent to the oxidation there can be recovered both a -nitrato- and a -hydroxyisobutyric acid.  The a -nitratoisobutyric acid may be precipitated selectively by cooling the reaction mixture, and the resulting solution may be evaporated to obtain a -hydroxyisobutyric acid.
Patent GB-247805-A (GB)
Title: Improvements in or relating to lubricating systems
IPC: F16N27/00
Filed: 1925-05-25
Abstract: 247,805. Prestwich, J. A. May 25, 1925. Force-feed lubricating.-The supply of oil through pipes a, c, sight-feed d, and pipe e to a pump delivering to an engine is controlled by a hand-operated needle valve b, arranged between the pipes a, c, and a by-pass around the valve controlled automatically in accordance with the power output of the engine. The by-pass consists of a passage f leading from the pipe a to a cylindrical chamber h, the outlet from which to the pipe c is controlled by a tapered spring- pressed valve j connected by a Bowden wire to the engine throttle lever.
Patent GB-494029-A (GB)
Title: Improvements relating to powder and like containers
IPC: B65D5/76
Filed: 1937-05-18
Abstract: 494,029. Delivering contents of powder &c. containers. WASHINGTON, H., and COLBIT, Ltd. May 18, 1937, No. 13798. [Classes 18 and 66] A container for powder, granular materials, &c. has partitions e, d constituted, e.g. by interengaging diagonal cardboard sheets, an inner lid f with an aperture g which may be positioned over any of the compartments, and an outer lid c. By removing the outer lid and suitably positioning the inner lid, the contents of any compartment can be delivered. The container may be square or polygonal, and the aperture may be made by the user pushing in a partially severed portion.
Patent GB-711936-A (GB)
Title: Improvements in or relating to electric power switches having cooling means
IPC: H01H33/55
Filed: 1952-05-30
Abstract: 711,936. Electromagnetically-actuated pumps. SIEMENS - SCHUCKERTWERKE AKT.-GES. May 30, 1952 [July 11, 1951], No. 13857/52. Class 102 (1). [Also in Groups XIII and XXXVII] A pump for circulating. cooling liquid through an electric circuit-breaker (see Group XXXVII) comprises a magnetic cylinder 10 arranged around the current lead-in 13 for the circuitbreaker. The cylinder has one or more longitudinal slits 11 so that the magnetic field due to the current flowing through lead-in 13 causes the slit to open and close at double the frequency of the current. The end covers 14 of the cylinder act as non-return valves and the slit is closed by a diaphragm 12 also acting as a non-return valve. The liquid is drawn into the cylinder through non-return valves 17 and is expelled through the slit 11.
Patent GB-421051-A (GB)
Title: Cathode arrangement for braun tubes
IPC: H01J29/48
Filed: 1933-05-13
Abstract: 421,051. Cathode-ray tubes. RADIOAKT.-GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, and SCHLESINGER, K., 39, Friedrichstrasse, Friedrichshagen, both in Berlin. May 13, 1933, Nos. 13931, 13932, and 13933. Convention dates, May 14, 1932, June 27, 1932, and Jan. 12, 1933. [Class 39 (i)] Electrons emitted at right angles to the axis of a Braun tube are controlled by an electrode between the axis and the emissive surface and near the latter, and the space between the emissive surface and the control electrode is screened from the anode. In oscillography, the control electrode is maintained at a positive potential relatively to the cathode, the potential being below the ionization potential of the filling if the tube is gas-filled. In television, the control voltages are applied between the control electrode and the cathode. In one arrangement, Fig. 1, a bifilar filamentary cathode 1 surrounds a cylindrical grid 5 at a distance of 2 mm. and is surrounded by an enclosure 9, the end plate 7 of which screens the cathode from the anode 6. Electrons pass inwardly through the grid 5 and are accelerated towards the anode 6, and ions move to the left and do not reach the cathode. Alkaline earth metal 28, 29 may be atomized by eddy-current heating or by a filament 30 to improve the vacuum and to activate the cathode, or the cathode may be an alloy or oxide coated. In a modification, Fig. 3, electrons are emitted from the upper, inner surface of an equipotential cylinder 1 and are controlled by a grid 5, of pitch equal to half the grid diameter, before emerging from the aperture 26 of À5 mm. diameter in the screen 7. The tube 1 is heated by a filament 21 in an insulator 13 and fits into a porcelain tube 12 itself fitting into an outer metal tube 25 carrying the parts 5, 7. The cathode lead 24 embraces a lower insulator 14 joined to the insulator 13 by a pin 20 and containing the leads to the filament 21. This filament may be doubly wound and may be shielded from the emissive surface 1 by a metal cap above the insulator 13. The leads to the filament 21 may also be screened. In another modification, Fig. 6, an auxiliary anode 8 is arranged on the opposite side of the axis to a cathode 1 and grid 5. The electrodes 2, 5, 8 are constructed and operated to give a steep, straight characteristic for the grid control. The main anode 6 draws electrons from the cathode 1 through the screen 7. The anode 8 may alternatively be a grid-like cylinder surrounding the axis and surrounded by cylindrical control grid itself surrounded by a cylindrical, equipotential cathode heated by an outer winding. The electrons may be concentrated between the screen 7 and the anode 6 by biassing and shaping concavely the screen 7 or a separate electrode 37, or by a cylindrical electrode between the parts 7, 6.
Patent GB-255593-A (GB)
Title: Improvements connected with door operating mechanism for "one man" operated omnibuses
IPC: E05F11/12
Filed: 1925-05-28
Abstract: 255,593. Fone, R. F. May 28, 1925. Operating vehicle doors from drivers' seats.- In operating appliances for the doors of " oneman " omnibuses the jointed rods 7, 8 are connected together by a pivot 15 to which is fitted a co-axial handle provided with a spring-controlled plunger connected to looking mechanism for normally securing the joint in a desired position, the locking mechanism of the joint being released when the plunger is depressed. The arms 7, 8 are hingedly secured to the vehicle dash-board and the entrance door respectively and the handle 14 contains a spring-pressed plunger 16 secured to a plate 17 provided with pins 18 or engaging holes in the knuckles of the joint. When the plunger is depressed sufficiently the joint is unlocked and the rods may then be folded to open the door by pulling the handle. The holes 14<a> are drilled through the third and fourth knuckles of the joint and the pins 18 may engage these holes when the sets of holes are in alignment.
Patent GB-389312-A (GB)
Title: Improvements in and relating to mercury vapour rectifiers
IPC: E04D12/00
Filed: 1932-05-18
Abstract: 389,312. Mercury-vapour rectifiers. AKT.-GES., BROWN, BOVERI, ET CIE, Baden, Switzerland. May 18, 1932, No. 14121. Convention date, May 18, 1931. [Class 39 (i).] Starting of a metal-cased rectifier is facilitated by accelerating the formation of vapour by means of a heating winding which is permanently installed therein near the bottom of the casing. The heater is connected to lead-in wires which pass through the cover and are coated with heat-resisting material. It is energized automatically before starting and may be kept in circuit or disconnected subsequently.
Patent GB-717790-A (GB)
Title: Electrical insulating tape for wires and cables
IPC: H01B3/30
Filed: 1952-06-04
Abstract: 717,790. Reinforcing edges of sheet material. SUDDEUTSCHE KABELWERKE ZWEIGNIEDERLASSUNG DER VEREINIGTE DEUTSCHE METALLWERKE AKT.- GES. June 4, 1952 [June 12, 1951], No. 14126/52. Class 42 (1). [Also in Group XXV] An electric insulating tape composed of a foamed polyacrylic acid ester or polystyrene is reinforced by twine or silk, rayon, cotton, linear polyamide or stretched polystyrene threads adhesively attached along the edges of the tape with a polystyrene lacquer. Specification 682,107, [Group XXXVI], is referred to.
Patent GB-419382-A (GB)
Title: Improvements in or relating to machines for stemming tobacco leaves
IPC: A24B5/06
Filed: 1933-05-16
Abstract: 419,382. Tobacco - stemming machines. QUESTER, E., 141, W³llnerstrasse, Lindenthal, Cologne, Germany. May 16, 1933, No. 14201. Convention date, May 18, 1932. [Class 130.] In a tobacco-stemming machine of the kind in which the leaves are conveyed singly to tools arranged in the line of movement of the leaves to act successively on the leaves, the tools comprise firstly a tool for separating the leaf over a part of its length from the rib, then tools for stripping the separated leaf portions, and finally tools for cleaning the rib of any remaining leaf portions. The leaftip is then severed from the rib, or the leaf-portion of the tip may be removed from the rib by another stripping operation. The leaves are conveyed over a table 42 by an endless chain 15 to which they are secured at their tips by equally spaced clamps comprising a fixed tooth 41, Fig. 9, and a movable tooth 43. The teeth have serrated faces 44 and the tooth 43 is operated by a roller 45 and arm 46 to pierce the leaf after it is impaled on tooth 41. Alternatively the leaf is held by a clamp comprising a fixed jaw 133, Fig. 11, and a movable jaw 136, or by superposed belts having interengaging ribbed surfaces. The leaves are fed to the machine by superposed rows of conveyer belts 23, 27, the upper row being raised intermittently by lever mechanism 38, 39 from the camshaft 14 to allow attachment of the leaves to the clamps 41. Five tools 90-94 are mounted in a holder 78 which is reciprocated on a frame 74 by endless chains 50, 51 actuated from the camshaft 14 by a lever 65 and rack-and-pinion 66. The frame 74 is lifted during the idle stroke of the tools by rods 70, and chain tensioning rollers 79 are actuated by linkage 83, 84 from the camshaft. A tool 90 comprising knives 88, 89 cuts the leaves as shown in Fig. 5, the separated portions being removed by combs 91, 92. The tool 93 is resiliently mounted on the bracket 96 and has a stripping member 101 which is given a lateral movement when the tool is lowered to the working position so as to rotate the leaf rib from which leaf particles are stripped by the member 101 and by a travelling rubber belt 105. The last tool 94 comprises a rotating brush 113, Fig. 17, driven by pinions 116, 117 and a belt 115 which passes round the spindle 114 and is secured at its ends to the machine frame. The leaf tips are cut from the ribs by a rotating knife 123, the ribs and tips being carried by belt conveyers 125, 126 to outlets C and D respectively.