baber/WOPTO huggingface dataset:
Patent GB-347358-A (GB)
Title: Milking apparatus
IPC: A01J5/10
Filed: 1930-02-17
Abstract: 347,358. Cow - milkers. DINESEN, L., 2125, East Hennepin Avenue, Minneapolis, Minnesota, U.S.A. Feb. 17, 1930, No. 5325. [Class 84.] A pulsator for milking-machines comprises a cylinder 19, Figs. 1 and 5, containing a doubleended piston 41 and provided with a valve seat 46 having an intermediate port 34 and outer ports 36 connected respectively to a source of vacuum and to the outer ends of the cylinder, the outer ports 36 being alternately connected to the intermediate port and to the atmosphere by a valve 45 actuated by an endwise resilient thrust member M pivotally connected to the valve and to the piston. The intermediate port 34 communicates through a conduit 33, a pipe 12, and ducts k, n, m, in a valve h, Fig. 1, with the top of the milk pail a to which suction is transmitted through a pipe f. The outer ports 36 are connected by conduits 35 and ducts 37 with the outer ends of the cylinder, one of the ports 37 being controlled by a needle valve 38, and the ends of the piston 41 being cut away at 44 so that the ports 37 are never closed. Each conduit 35 communicates with a pair of nipples connected by pipes 40 to the outer chambers 29 of the teat cups 30. The thrust member M comprises a head 53 and a bolt 52 thrust apart by a compression spring 54, the head and bolt being provided respectively with trunnions 53a, 52a detachably seated in notches formed respectively on the underside of a yoke-like portion 43 of the piston-rod 42, and on the upper side of a crosshead 49 surrounding the valve 45. The cylinder 19 comprises end portions connected by a split cylindrical shell 55, the centre part 19a of the cylinder being at substantially atmospheric pressure due to air leakage between the shell and the end portions. A claw 14, detachably secured to the cylinder 19 and provided with nipples 31 connected by pipes 32 to the inner chambers 28 of the teat cups, is connected by a pipe 13, having a transparent portion 13a, to the valve h on the milk pail. The claw 14 is provided with spaced L-shaped flanges 16 between which fits a projection 25 formed on a block 21 on the cylinder 19, the projection 25 carrying a turn button 22 adapted to engage beneath the shoulders of the flanges 16. In operation, suction is transmitted through the milk pail to the pipe 13 communicating with the inner chambers of the teat cups, and also to the pipe 12 communicating with the intermediate port 34 of the pulsator; with the valve 45 in the position shown, the right-hand end of the cylinder 19 and the outer chambers of the teat cups connected to the right-hand conduit 35 are subjected to suction, the left-hand end of the cylinder and the outer chambers of the other pair of teat cups being at atmospheric pressure ; the piston is thus moved to the right against the tension of the spring 54 until the thrust member M is slightly past the dead centre position, when the valve 45 is suddenly operated and the suction conditions reversed. Specification 304,370, [Class 84, Milking &c.], is referred to.
Patent GB-754344-A (GB)
Title: A typewriter for oriental languages
Inventor: RIHM KARL
IPC: B41J3/01
Filed: 1954-02-24
Abstract: 754,344. Typewriters. OLYMPIA WERKE AKT.-GES., [formerly OLYMPIA WERKE WEST GES.]. Feb. 24, 1954, No. 5453/54. Drawings to Specification. Class 100 (4). In a typewriter for oriental languages having single and double-letter spacing, type-bodies associated with single letter-spacing type-levers are provided with vowel symbols and accents mounted towards the left of the type-bodies, while those type-bodies associated with double letter-spacing type-levers are provided with main characteris mounted towards the right of the type-bodies. This avoids the use of dead keys normally required for printing accents &c. and reduces the number of type-bodies that have to be specially shaped.
Patent GB-710909-A (GB)
Title: Improvements in and relating to jointed mouth frame bags and like containers
IPC: A45C15/06
Filed: 1952-03-04
Abstract: 710,909. Hand bags. REDMOND, N. Feb. 27, 1953 [March 4, 1952], No. 5577/52. Class 133 A jointed mouth frame bag having a closure flap is provided with an electric light bulb and battery controlled by a switch actuated by a turn lock securing the closure flap. As shown, an electric bulb 4 is mounted on the side of the hand bag and a battery 6, in a tube 7 having plugs 8 receiving conducting wires 9, 10, is retained in a pocket 5. The wire 9 is connected to a terminal 11 of the bulb holder and the wire 10 to the metal part of a turn lock 12 which has a rotatable knob. An arm 13 on a pivot rod 14, which passes through the flap and is turnable by the knob, presses on a plate 19 of insulating material, when the knob is in position to lock the bag, and on contacts 18 connected in series by a lead 20 to the terminal 21 of the bulb holder to close the circuit and light the lamp, when the knob is in position to allow the bag to open. The light may be used in conjunction with a mirror and according to the Provisional Specification, a switch may be mounted in or connected to the pivot on which the bag opens.
Patent GB-525384-A (GB)
Title: Improvements in and relating to electric choke coils
IPC: H01F29/14
Filed: 1939-02-20
Abstract: 525,384. Inductances. BRITISH THOMSONHOUSTON CO., Ltd. Feb. 20, 1939, No. 5611. Convention date, Feb. 19, 1938. [Class 38 (ii)] In order to avoid inductive coupling between the A.C. windings 2 of a polyphase regulating choke and D.C. saturating winding 3 associated therewith, the windings are arranged on three limbs of a five-limbed core, and the D.C. windings which may be tapped are connected in open delta so that A.C. voltages induced therein sum up to zero. The total cross-section of the unwound limbs, which may be arranged as shown or between the wound limbs, is made equal to that of the wound limbs. In order that harmonic voltages also may be balanced out, the core is divided in the plane of the limbs, Fig. 4, and the D.C. winding associated with each divided limb is arranged in two seriesconnected parts, one on each half limb.
Patent GB-177014-A (GB)
Title: Improvements in or relating to the manufacture of boots and shoes
IPC: A43B13/34
Filed: 1921-02-18
Abstract: 177,014. Haldinstein, G. E. Feb. 18, 1921. Lasts.-A method of attaching looss heels to uppers without removing the shoe from the last consists of employing a known last having a hole B through which a nail is inserted to secure the heel. The nail, preferably provided with a helical rib may be inserted by apparatus described in Specification 177,015.
Patent GB-998834-A (GB)
Title: Improved process for the preparation of 2-halothiobenzamides
Inventor: KOK HANS ROBERT
Filed: 1962-02-14
Abstract: An improved process for the preparation of a 2-halothiobenzamide of a general formula <FORM:0998834/C2/1> and/or the tautomeric isothiobenzamide, wherein X represents a halogen atom, Z represents a halogen atom, a hydrocarbyl or a hydrocarbylthio group, and x=1, 2, 3 or 4, by reacting the corresponding halobenzonitrile with hydrogen sulphide according to the parent Specification, which comprises contacting at least part of the reaction mixture with water and isolating the reaction product which has separated out, followed by recovering one or more non-aqueous components from the aqueous mother liquor and recycling them after replenishment with fresh starting material, and, if desired, one or more other components of the original reaction mixture. In an example 2,6-dichlorobenzonitrile was added to a mixture of diethylamine and methanol through which H2S was passed.  The resulting solution was then poured into water and the 2,6-dichlorothiobenzamide precipitated. The aqueous filtrate was then distilled the distillate obtained within the range up to 65 DEG  C. at atmospheric pressure consisting chiefly of diethylamine and methanol, and containing dissolved hydrogen sulphide.  A proportion of the combined distillate from two experiments was then recycled after having been replenished with fresh 2,6-dichlorobenzonitrile. Thus, a mixture of the distillate and the nitrile was treated again with gaseous hydrogen sulphide and further reaction product was obtained.  Specification 998,833 also is referred to.
Patent GB-275160-A (GB)
Title: A method of manufacturing a metallic ring for packing stuffing boxes and like purposes
IPC: F16J15/26
Filed: 1927-03-01
Abstract: 275,160. Zaidan Hojin Rikagaku Kenkyujo. July 29, 1926, [Convention date]. Packing, metallic; packing, non-metallic.-Metallic packing rings for stuffing-boxes and like purposes are manufactured from a split ring or cylinder having an inner diameter smaller than the finished size which is opened out by radial or tangential force and machined to size. In one method, the ring 1 is opened out and a retaining pin 2, Fig. 3, is fitted during the machining of the inner surface to the required diameter. In another method, a wedge 3, Fig. 7, is applied to the stepped opening in the ring. When the ring is used to press a leather or asbestos ring 5, Fig. 9, on the rod 6, segmental pieces 4 are interposed and the inner diameter of the ring 1 is machined to the outer diameter of the pieces 4. Alternatively the ring-may be expanded by radially disposed electromagnets, or be provided with a number of equally spaced small holes at which equal pulling forces are applied.
Patent GB-1559268-A (GB)
Title: Glass aerosol containers and method of making them
IPC: B65D83/14
Filed: 1978-02-15
Abstract: The glass bottle (1) has at its mouth (3) a bead-shaped enlarged edge (4). A valve can be mounted thereon in order thus to form a pressure container for an aerosol. The bead edge (4) has a strongly adhering coating (5) made of a deformable material. Preferably it consists of rubber. By this measure, a surprisingly good sealing of the pressure container is obtained. In addition, a process for producing a bottle of this kind is given, the special feature of which consists in the fact that the edge (4) of the glass bottle (1) is first cleaned using an open flame, then a rubber or rubber-containing substance containing both plasticiser and vulcanising agents is injection moulded onto the edge (4) and subsequently the glass bottle (1) is heated by means of radiant heat. A coating produced by this process is particularly durable and effective. <IMAGE>
Patent GB-481781-A (GB)
Title: Improvements in or relating to apparatus for heating solid fuel
IPC: C10B49/00
Filed: 1937-03-01
Abstract: 481,781. Distilling or drying solid fuel. METALLGES. AKT.-GES. March 1, 1937, No. 6107. Convention date, May 9, 1936. [Class 55 (i)] [Also in Group XIII] An apparatus for distilling or drying solid fuel by contact with hot gases comprises two shafts 1 each containing hooded channels 7 leading from ducts 4 and 5 through which the hot gases are introduced, and hooded gas withdrawal channels 8 leading to a dust extrac. tion chamber 3 provided with deflecting plates 9, and an outlet duct 6. A scraper 10 is used to convey the deposited dust to one end of the dust extractor. If the gases leaving the apparatus are combustible, they may be returned for re-use.
Patent GB-1457576-A (GB)
Title: Containers
IPC: B21D51/38
Filed: 1974-02-11
Abstract: 1457576 Making container closures; stamping W C LOVELL and F G J GRISE 11 Feb 1974 [12 Feb 1973] 6158/74 Headings B3A B3Q and B3J [Also in Division B8] An inwardly-displaceable section 16 of a container end is defined by a line of weakening, which is formed in the radial outer leg portion of an inwardly-depressed channel 18, Figs. 5 and 6 (illustrating inverted can end views), and which comprises an integral rupturable web 42 bonded by a pair of faces 44 and 46 in mutual contact. The end is made by pressing a blank between dies 20 and 24, Fig. 3 (not shown), having an annular protrusion and groove to form the channel, indenting the outer leg portion by means of a tool 32 having a cutting edge 34 and central stop 38 to form the web 42 and two mutually perpendicular faces 44 and 46, and flattening the apex of the channel by means of a die 50 to press the faces 44 and 46 into contact.
Patent GB-249110-A (GB)
Title: Improvements in devices for determining the field of vision
IPC: A61B3/024
Filed: 1926-03-05
Abstract: 249,110. Zeiss, C. (Firm of). March 12, 1925, [Convention date]. Eye-examining apparatus.-Apparatus for determining the field of vision of the hind in which a mark is displaceable from the line of sight on a surface of rotation, comprises a device for projecting an image of a source of light to form both the fixed and the movable marks. A curved projection surface a rotatable about a pivot b is supported in a stand by the spigot c, and receives the image of a source of light h projected through condenser g<1> by way of the reflector f and the lens g<2>. This image constitutes the fixed mark. The movable mark is a similar image of the source of light h, projected directly through the condenser j<1> and the lens j<2> on to the same point. The latter projection system is, however, mounted to rotate on the sleeve e<2> about the axis A-A to cause the movable mark to travel round the surface a. The eye to be tested is situated in the centre of the distance between the two ends a<1> of the surface a, and whilst observing the fixed mark the movable mark is traversed round the surface a until no longer perceived. This position is read off the indicator e<3> on the casing e'. Colour filters k may be fitted in the path of each projected beam, and by rotating the arm e about the pivot b any meridian of the eye may be examined, the position being indicated by a pointer c<1> on the support.
Patent GB-897829-A (GB)
Title: Improvements relating to electron gun structures
Inventor: DEEGAN PETER ANTHONY
IPC: H01J29/48
Filed: 1959-02-23
Abstract: 897,829. Electron beam apparatus. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 17, 1960 [Feb. 23, 1959], No. 6196/59. Class 39(1). A cathode control electrode assembly, for use in a cathode-ray tube, comprises a tubular cathode 19 supported within a tubular control electrode 15 with its axis parallel to that of electrode 15 and with its emissive surface closely adjacent and in alignment with an electron-beam aperture 17 in a side wall 16 of electrode 15, this wall being constituted by a plate having lugs 18 extending radially outwardly from the beam aperture for engaging support means for the assembly. As shown, the control electrode comprises a channel member welded at its outer edges to a flat plate 16. Mica plates 20 are secured to the ends of electrode 15 by means of lugs 21, 23. The ends of the cathode extend through apertures in the plates 20. The cathode control electrode assembly, together with the anode and focusing electrodes of an electron gun, Fig. 1 not shown, are formed or provided with supporting lugs 18 which are embedded in ceramic or vitreous rods extending axially of the cathode-ray tube neck. The electron gun structure may be provided with pivoted spring clips which centralise the structure within the tube neck as well as making contact with an internal coating on the tube wall.
Patent GB-370142-A (GB)
Title: Circuit for testing electrically-operated photographic flashlamps
IPC: F21K5/12
Filed: 1931-02-28
Abstract: 370,142. Flashlight photography. SASHALITE, Ltd. and HARKER, J. A. M., Westminster House, Great George Street, London. Feb. 28, 1931, No. 6317. [Class 98 (i).] In order to test the filament of a photographic flashlamp of the type in which oxidizable material in a bulb or vessel is ignited when current is passed through a filament, a small electric lamp having a filament of high resistance is connected, in series with a testing switch, across the main switch of the circuit so that, if the flashlamp filament is intact, the test lamp lights up, but the current in the circuit is insufficient to cause the flashlamp filament to glow. One construction of flashlamp unit is shown in Fig. 4, the connections being shown diagrammatically in Fig. 7. A metal container 11 has on its underside a flanged plate 12 adapted to slide into a fitting on the top of the camera, brackets 13, 14 being provided at the top for supporting a reflector 15. A block 16 of insulating material is secured within the container 11 by screws 17 and is provided with a recess to take a socket 18 into which fits the cap 19 of the flashlamp 2. The socket 18 is connected to a metal strip 20 which at one end has an upwardly bent portion 20a received in a recess 16a, and at the other end is bent up at 20b at the end of the block 16. A screw 21 engaging the centre contact of the flashlamp 2 is connected to a metal strip 23, insulated from the strip 20 and bent down to make contact with one terminal of a battery 27. The other terminal of the battery is bent over to make contact with the container 11, and thence, through a spring conducting strip 30, with a socket 29 adapted to take a small test lamp 31 and having a perforated protecting cap 32. The battery 27 is held in position by an insulating plate 33 which is held between lugs 11b and a spring 34. The plate 33 carries a conducting strip 35 making contact at its upper end with the end 20b of the strip 20 and at its lower end adapted to engage a contact piece 36 on the camera connected to a switch 38, which may be controlled by the camera shutter as described in Specification 363,050. On pushing in the test lamp 31, this is placed in series with the flashlamp 2 and battery 27 and lights up if the filament of the flashlamp is complete. Alternatively, the test lamp 31 may be connected to a two-way switch so arranged that the test lamp may be connected either across the main switch or across the flashlamp socket. In the latter position, by removing the flashlamp and closing the main switch, the test lamp glows if the rest of the circuit is complete. In a modification, the battery is contained in a hollow handle carrying a press-button switch for completing the main circuit. A two-pin plug connection may be provided for connection to a shutter-controlled switch with or without additional flashlamps in series.
Patent GB-767891-A (GB)
Title: An improved device for depositing textile sliver in sliver cans
IPC: B65H54/80
Filed: 1955-03-03
Abstract: 767,891. Coiling slivers. STEINWANDT, O. [trading as MANN, MASCHINENFABRIK, C.]. March 3, 1955 [March 9, 1954], No. 6326/53. Class 120 (3). Sliver is deposited in a sliver can by a rotatable member carrying a pair of co-operating rollers and comprising a box-like casing having elements transmitting drive to the rollers. The member 1 is rotatably mounted in an aperture 1<SP>1</SP> in a support or frame 1<SP>11</SP> and has a toothed flange 2 engaging a driving wheel 3. Around the aperture 1<SP>1</SP> is provided a gear ring 4 engaged by a bevel gear 5 fixed on a shaft 6 journalled in the member 1. A gear or friction wheel 8 on the shaft 6 drives a parallel shaft. Each shaft carries a roller 7 urged against the other by a spring. The cam K may be rotated as described in Specification 767,070.
Patent GB-764849-A (GB)
Title: Improvements in joints for flexible conduit structure
IPC: F16L27/08
Filed: 1955-03-03
Abstract: 764,849. Stuffing-box substitutes. VAPOR HEATING CORPORATION. March 3, 1955 [June 21, 1954], No. 6347/55. Class 122 (5). [Also in Group XXVIII] A gasket assembly for a spigot-and-socket pipe joint includes a metallic ferrule 40 positioned within and engaging a gasket 33 of elastomeric material and L-shaped in crosssection, and a retainer 41 slidably disposed within the ferrule. The retainer is formed with a flange 51 for engaging the bottom of the socket, and a stop 52 for abutment with the ferrule to limit sliding movement of the retainer in one direction relative to the ferrule. Surrounding the retainer is a compression spring 42 which bears against the flange 51 and a portion 47 of the ferrule. The latter has a series of longitudinal slots 48 providing intervening spring fingers 50 which bear outwardly against the inner face of the gasket 33 to retain the gasket firmly in engagement with the wall of the socket. The leg 36 of the gasket has bonded thereto a facing ring 37 of rubber impregnated fabric which includes strands of woven asbestos.
Patent GB-1398199-A (GB)
Title: Solvents for chromogenic materials
IPC: B41M5/165
Filed: 1973-02-09
Abstract: 1398199 Pressure-sensitive compositions MONSANTO CO 9 Feb 1973 [11 Feb 1972] 6438/73 Heading C4A [Also in Division D2] In the development of colour from a colourless chromogenic compound by reaction with a sensitizing agent, the reaction is carried out in the presence of a liquid comprising a solvent which is a terphenyl, partially hydrogenated terphenyl, (C 1-4  alkyl)-substituted terphenyl, or mixture thereof having at least 65% aromaticity. Aromaticity of 65-85% is preferred. The solvent may be liquid or solid at room temperature and if solid must be used with a diluent. The diluent may be a mineral or vegetable oil, an aromatic naphtha, C 1-12  alkyl benzene, benzyl biphenyl, or C 1-6  alkylaryl indane, in an amount up to 3 times that of the terphenyl. Preferably the chromogen is in solution in the liquid, e.g. in microcapsular form. Numerous known chromogens are listed. The sensitizing agent is a known solid acidic material such as an acid clay or an organic polymer.
Patent GB-1067360-A (GB)
Title: Improvements in or relating to priming devices
IPC: F42C19/06
Filed: 1965-02-15
Abstract: 1,067,360. Rocket motors; war-rocket launchers. OERLIKON-BUHRLE HOLDING A.G. Feb. 15, 1965 [Feb. 21, 1964], No. 6452/65. Headings F3 and F3C. Electric ignition means for firing a rocket propellant comprises a detonator 15 with a connection 16 to a switch contact 17 and a connection 20 to the rocket casing 3. A further connection 19 to switch contact 18 short-circuits the detonator 15 through a contact 9 of an electromagnetic relay 6. The relay 6 is connected through an insulated ring 5 mounted in the casing 3 and a contact pin 4 mounted in insulation in the launching tube 1 and leads 11 to a battery 13, the circuit being completed through a lead 14 to the casing 3. When a key 12 is closed the relay is energized and its armature displaces contact 9, thus breaking the short circuit and connecting the detonator 15 in parallel with the relay coil 7 to battery 13. The relay is mounted on a disc (not shown in Fig. 3) which closes the rocket nozzle until the propellant is ignited, when the gases formed disintegrate the relay. The relay may be filled with corrosion-preventing gases as a protection during storage.
Patent GB-846904-A (GB)
Title: Metallic pigments
IPC: C23F13/02
Filed: 1956-11-09
Abstract: A pigment for use in paints is formed by comminuting an alloy of magnesium and zinc.  In an example an alloy containing 10% magnesium and 90% zinc was broken up and ball-milled to a particle size of 10 microns in a lubricant consisting of a solution of stearic acid in solvent benzine or benzene.ALSO:A binary magnesium-zinc alloy containing 10% magnesium is broken up and then comminuted in a ball mill to a particle size of 10 microns in a lubricant consisting of a solution of stearic acid in benzene or benzine to produce a pigment.
Patent GB-807825-A (GB)
Title: Process for carrying out catalytic reactions with platinum metal sols
IPC: B01J23/42
Filed: 1956-03-02
Abstract: A platinum group metal catalyst for use in reactors at elevated temperatures consists of a liquid platinum metal sol. substantially free from protective colloids.  The sol. is prepared by reducing a compound of the metal, e.g. chlorplatinic acid dissolved in water or suspended in an organic solvent with resorcinol, quinone or hydrazine.  A very small amount of sodium prot-albinate may be added, e.g. 10 per cent by wt. of metal salt treated.  The resulting metal sol. is stable up to about 200 DEG  C. There is preferably also present metal or metalloid oxides, upon which the metal sol. may be deposited, which prevent the sedimentation of small amounts of flocculated material.  Specified oxides are aluminium, silicon, titanium or zirconium formed by the thermal decomposition of volatile compounds of those metals in the presence of oxidizing or hydrolysing gases.  The catalyst may be used in the process for making heavy water as described in Specification 803,274.