baber/WOPTO huggingface dataset:
Patent GB-229806-A (GB)
Title: Improvements in and relating to pawl holders for pawl and ratchet mechanism
IPC: E21B6/06
Filed: 1923-12-29
Abstract: 229,806. Rayner, G. H. T., and Rayner, P. Dec. 29, 1923. Clutches, ratchet. - In pawl-and-ratchet mechanism, such as used in twist mechanism for rock drills and coal-cutting machines, the spring-pressed pins or plungers which press the pawls outwards, are arranged in recesses which are inclined to a plane at right angles to the axis of the holder and are disposed tangentially to an imaginary cylinder concentric with the axis, the orifices being in one common peripheral centre line. In the form shown, the holder is provided with a spindle b and four integral arms or wings c, each undercut to carry a pivoted pawl r and formed with a recess k for a spring n and pawl-actuating plunger m. The orifices of the recesses lie in a central plane A-B at right angles to the main axis whilst the recesses are inclined thereto as shown.
Patent GB-1392372-A (GB)
Title: Recording and or playback apparatus
IPC: G11B15/10
Filed: 1972-07-12
Abstract: 1392372 Recording/playback apparatus; controlling carrier transport PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 12 July 1972 [15 July 1971] 32571/72 Heading G5R Record/playback apparatus, such as a tape machine, includes a normal-transport selector 18, and a fast-transport selector 29 which may be actuated during normal transport without affecting the state of the normal-transport selector 18, so that normal-transport can immediately be resumed after fast-transport, the selectors 18, 29 having a common, spring- biased locking device 41 for locking either selectors in its operative state, so that locking of the fast-transport selector 29 is prevented if the normal-transport selector 18 is itself locked. The fast-transport selector 29 must thus be held manually in its operative state if normal transport has been interrupted. As shown, the selectors 18, 29 are slide knobs 19, 30 which have projections 47, 46 co-operable with projections 44, 45 on a locking lever 43 pivoted at 42. Locking the knob 19, as shown, pivots the lever 43 sufficiently in direction 50 to prevent locking of the knob 30. The lever 43 may be unlocked by a push-button 51. Operation of the button 19 in direction 23 pivots a pinch-roller 8 and head 11 into their operative positions and engages an idler wheel 10 with both a drive shaft 3 and take-up reel 1 (full lines). Operation of the knob 30 in either direction 35, 37 pivots contacting idler wheels 7, 28, of which wheel 7 is directly driven from a motor 6, into contact with either reel 1 or 2 and disengages the normal-transport by means of a slide member 34 (dotted lines). In a second embodiment, Fig. 3, the selectors 18, 29 are push-buttons 53; 56, 57 having projections 72-74 co-operable with inclined surfaces 66-68 and recesses 69-71 of apertures 63-65 in a laterally-movable strip 62. Since surface 66 is more steeply inclined than surfaces 67, 68, locking of projection 72 in recess 69 moves the strip 62 sufficiently to prevent locking of projecrions 73, 74 in recesses 70, 71, as in Fig. 5 (not shown). A push-button 76 releases any locked button. In a third embodiment, Fig. 6 (not shown), rotary selector knobs (80; 81) have recesses (87; 84, 85) co-operable with the ends (86; 83) of a U-shaped member (82). Locking the knob (80) (dotted lines) again moves the member (82) sufficiently to prevent projection (83) entering either recess (84, 85).
Patent GB-477299-A (GB)
Title: Improvements in and connected with the centrifugal casting of cast-iron pipes
IPC: C22C37/00
Filed: 1936-06-23
Abstract: In the manufacture of pipes as described in Specification 477,291, cast iron is used containing between 2,4 and 3 per cent of carbon and between 4 and 5,5 per cent of carbon plus silicon or if the iron contains alloying constituents tending to produce white iron the percentages may be increased to correspond.
Patent GB-372273-A (GB)
Title: Improvements in or relating to projection system and projection lens system therefor
IPC: G02B1/00
Filed: 1930-10-30
Abstract: 372,273. Optical-projection systems; lenses. TRANS-LUX DAYLIGHT PICTURE SCREEN CORPORATION, 247, Park Avenue, New York, U.S.A.-(Assignees of Bowen, L. W. ; Larchmont, New York, U.S.A.) Oct. 30, 1930, No. 32598. Convention date, Jan. 15. Void [Published under Sect. 91 of the Acts]. [Class 97 (i).] To enable projection apparatus, particularly for kinematograph films, to be placed relatively close to the screen, a projection lens system is provided consisting of positive and negative components arranged with the positive component nearer the gate aperture. The equivalent focal length of the system is approximately equal to the longest side of the picture aperture and to the aperture of the positive component of the system and the distance from the projector to the screen is approximately equal to the longest side of the picture on the screen. The separation between the positive and negative components of the system is greater than the focal length of the positive component In Fig. 7 the film 23 is illuminated by a source of light 20 and reflector 21 and the image is projected by the lens system 25 .. 28, of which the positive component, comprising the elements 25, 26, is nearer the film. Numerical data are given for the projection lens system shown in Fig. 8.
Patent GB-1381641-A (GB)
Title: Method of manufacturing a balanced bobbin
IPC: B65H75/08
Filed: 1972-07-12
Abstract: 1381641 Balanced bobbin GRETENER AG 12 July 1972 [19 July 1971] 32606/72 Heading B8M A bobbin tube 4 is balanced by means of weights 18 introduced into recesses provided in a coupling member 6 or a closure member 7. The bobbin comprises a cylindrical hollow body 4 with a spindle coupling member 6 at one end and a closure member at the other end. The coupling"member and/or the closure member are provided with peripherally distributed recesses 10, 15 which are closed externally by the hollow body and internally by a boss 11, 16 which may be fixed or displaceable. A centring member 5 is also provided. In balancing the bobbin, in the case of a fixed boss 11, 16, the members 6 and 7 are inserted into the body 4 to leave part of the recesses 10, 15 exposed. The relevant weights 18 are inserted in the recesses and the members 6, 7 pushed fully into the body 4 to close the recesses. In the case of axially displaceable bosses 11, 16, the recesses 10, 15 are closed after insertion of the weights 18 by axial displacement of the bosses. Each insert may alternatively be provided with a fixed boss and an axially displaceable boss.
Patent GB-1405810-A (GB)
Title: Process and device for use in the consolidation of powdered material by estrusion process
IPC: B21C23/00
Filed: 1973-07-09
Abstract: 1405810 Hot extruding metallic powder FEDERAL-MOGUL CORP 9 July 1973 [13 July 1972] 32611/73 Heading B3P [Also in Division C7] A hot extrusion process for metallic and alloy powders and/or intermetallic compounds, e.g. Ni super alloys and tool steel, in which the powder 20 is packed in a ductile container 10 which contains at least one core pin 38 which extends axially along part of the length of the container so that the volume of the chamber between the and of the core and the end plate is 30-40% of the total chamber volume. The heated assembly is then extruded and the container and core are then removed. The powders preferably 1-250 micron size and contain <200 p.p.m. oxygen are loaded into the container through tube 34 in end plate 16 and may be sonically or supersonically vibrated. The core 38 forms part of a nose section 12 which is welded to one end of the container 10 which may be mild or stainless steel. Several cores may be included in the container and they may be round, elliptical or any desired shape. The core length is such that the volume of the chamber between the end of the core and the end plate is 30-40% of the total chamber volume. The extrusion ratio is 6 : 1 to 10 : 1 and the assembly is evacuated before extrusion. The extruded billet may be cut into sections for fabricating hubs or rotors for gas turbine engines.
Patent GB-229053-A (GB)
Title: Improvements in lapping machines
IPC: B24B37/02
Filed: 1923-12-31
Abstract: 229,053. Bethel, J. N., and Player, S., (trading as Bethel Player Co.). Dec. 31, 1923. Rollers and the like, treating.-A machine for lapping cylindrical or conical articles, for example, rollers for bearings, comprises an upper non-rotating lap 15 adjustable vertically by movement of a supporting rack-bar 14 carried by an. arm 12 mounted on a post 11, which is secured to a base 10, and a lower lap 42 which rotates and also has an eccentric motion, the period of the eccentric motion being different from that of the rotation. The conical rollers R to be lapped are positioned in obliquely placed slots 51 in a holder 50, which is located between the laps,. a projecting annular surface 46 of the lap 15 contacting with the conical surface of the rollers, and a ring 47, loosely surrounding the projection 46, serving to prevent radial displacement of the rollers and to lap the outer ends of these. The lower lap rests upon a drive-plate 20, which is secured to a sleeve 22 rotated by worm-gearing 23, and which rotates the lap by means of a roller 44 engaging a slot 43 in the lap. The eccentric motion is given to the lap by a stud 39 engaging an opening in a cross bar 41 secured to the lap, the stud being carried by a plate adjustable radially on a disc 35 mounted on a shaft 30 mounted within the sleeve 22. The shaft 30 is rotated through differential gearing 31 - - 34 by the sleeve 22. Specification 216,684 is referred to.
Patent GB-780017-A (GB)
Title: Improvements in or relating to methods of providing shoes with moulded shoe bottom members
IPC: B29D35/06
Filed: 1954-11-11
Abstract: 780,017. Moulding shoe soles. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation). Nov. 10, 1955 [Nov. 11, 1954], No. 32624/54. Class 87(2). [Also in Group VII] A method of moulding a shoe sole onto a shoe bottom comprises providing the shoe with a downwardly extending peripheral wall which is held against a moulding member while a resin dispersion is injected, heated, and allowed to solidify to form the sole. A shoe 10 has a wall or welt strip 16, notched at 22, which is stuck round the periphery of the insole 14. The wall is held in fluid tight contact with the contoured surface 30 of a moulding plate 26 while a fluid dispersion of resin particles in a liquid plasticiser is injected into the cavity formed on the shoe bottom either through an inlet 36 or a temporary opening in the wall 16 or in some cases in the insole or sock 14. The assembly is then heated by a hot plate, heating chamber, heating cartridges or the application of a high frequency electric field to solidify the sole bonding it to the insole 14 and to the upper by means of the wall 16. Suitable resins are copolymers of vinyl-chloride and vinyl acetate, polymethyl methacrylate and vinyl chloridevinylidene chloride copolymers. Suitable fillers, dyes or pigments may be used. Prior to the injection of the plastic the insole may be coated or impregnated with a suitable thin fluid resinous material such as resin latex. The wall may be of conventional leather or vinyl welting material grooved to simulate stitching or preferably a plasticised resin strip is used which becomes integral with the solidified sole. If a separate heel is to be applied to the sole a step is provided in the moulding surface against which the ends of the wall 16 are abutted at about the heel breast line.
Patent GB-871117-A (GB)
Title: Improvements in or relating to the production of mouldings containing synthetic materials
IPC: B29B15/10
Filed: 1958-10-13
Abstract: A moulded synthetic resin article has a reinforcement consisting of a web containing weldable thermoplastic and non-weldable fibres bonded together under pressure by softening the thermoplastic fibres by heat.  The thermoplastic fibres which are preferably long, e.g. 10 to 70 mm., may be made of a polyamide, cellulose acetate or triacetate, polyethylene, polypropylene, polyethylene terephthalate or other polyester, or a polyvinyl compound.  The non-weldable fibres may be of cotton. The web may be provided with a design or picture and impregnated with a liquid synthetic resin, and the article may be moulded by applying heat and pressure (a) to superposed layers of the impregnated web (b) to an impregnated web embedded in a layer of synthetic resin moulding powder, or (c) to a layer of synthetic resin moulding powder coated on both sides with an impregnated web, or by placing the web in a mould and injecting liquid synthetic resin thereinto.  Specified synthetic resins are melamine-formaldehyde, phenol-formaldehyde, and polystyrene.  An article having the appearance of porcelain may be obtained by coating the moulded article with a solution or dispersion containing about 60 to 80% by weight of synthetic resin and 5 to 15% of a -cellulose.  The manufacture of ornamented bowls, plates, and cups is described.
Patent GB-463934-A (GB)
Title: Improvements in or relating to preservation of latex
IPC: C08C1/06
Filed: 1936-11-28
Abstract: Latex is preserved by incorporating therein small amounts of ammonia and hydroxylamine.  It is stated that the hydroxylamine acts as germicide to prevent bacteria growth and the ammonia provides the desired alkalinity to give the latex mechanical stability.  The ammonia should be present in amounts up to ,6 per cent, preferably ,1-,6 per cent, and the hydroxylamine in amounts up to ,25 per cent, preferably ,025-,25 per cent. The hydroxylamine may be added in the form of a salt such as the hydrochloride or sulphate, in this case an additional amount of ammonia should be added to the latex to neutralize the salt or the salt may be neutralized with ammonia before being added to the latex.
Patent GB-934416-A (GB)
Title: Improvements in or relating to apparatus for effecting a gas/liquid reaction
IPC: B01J19/10
Filed: 1960-09-22
Abstract: <PICT:0934416/III/1> <PICT:0934416/III/2> <PICT:0934416/III/3> Apparatus in which reaction takes place between a gas and a liquid within a porous substance contains means for effecting oscillatory motion of the gas/liquid interface within the pores of the substance. The porous substance may be a catalyst and/or an electrode.  The motion may be obtained by (1) applying a pulsating pressure to the gas; as shown in Fig. 4, a fuel cell comprises container 20 with porous electrodes 21 separating liquid electrolyte 22 from gas spaces 23, the pressure in one of which is varied by applying a pulsating pressure by piston 25 via pipe 24; (2) applying an alternating electric field across the gas/liquid interface; as shown in Fig. 5, an alternating potential is applied from source 35 through leads 34 to electrodes 31; (3) applying sonic or supersonic vibrations to the liquid; as shown in Fig. 6, sonic or ultrasonic signals are applied to transducer 44 in liquid electrolyte 41.  Fuel gases referred to are hydrogen, hydrocarbons and carbon monoxide, and oxidants referred to are air and pure oxygen.  Liquid electrolytes referred to are molten alkali metal carbonates and aqueous solutions of potassium hydroxide.
Patent GB-1493169-A (GB)
Title: Sheathing hoses
IPC: B29C44/20
Filed: 1975-08-05
Abstract: 1493169 Forming split insulating hose IRBIT HOLDING AG 5 Aug 1975 32709/75 Heading B5A [Also in Division F2] In forming a longitudinally split sheathing hose having an inner foil 5 (Fig. 8) and an outer foil 7 with a mass of foam plastics material 5 sandwiched therebetween a preformed tube of foil 5 is fed via a guide tube 12 (Fig. 6) to the tip of a mandrel 20 and the outer foil is fed via a guide nozzle 13 to form an annular space around the inner foil 5 and foam material is fed via tube 28 to the annular space. A wiper 26 having holes 51 permits the foam material to trickle into the annular space between the foils and the material is foamed to fill the space by energy source 18 (e.g. an infra-red heater). In an alternative embodiment (Fig. 5, not shown) the wiper 26 is a disc with a serrated outer periphery. After the foaming the tube passes a cutter 22 which slits the foam so as to form a split sheathing. The outer foil may have overlapping edges in which case a deflector guide (31, Fig. 2, not shown) is provided in front of the cutter to lift and deflect the overlapping edge to avoid the cutter. The deflector or some other means may be used to apply adhesive to the overlapping edge. The mandrel is preferably perforated and supplied internally with compressed air to assist in the movement of the inner tubular foil over the mandrel and also to supply air to the inner tube at the tip of the mandrel to open it up for feeding on to the mandrel. The split sheathing is particularly useful as thermal insulation for pipes the outer foil then being of asbestos with a coating of a fire-protective paint on the outside.
Patent GB-289118-A (GB)
Title: Improvements relating to apparatus for washing or cleaning gas
IPC: B01D47/06
Filed: 1926-12-24
Abstract: 289,118. Brassert & Co., Ltd., H. A., (Brassert, H. A.). Dec. 24, 1926. Scrubbers and washers. - Gas is caused to ascend a tower while being subjected to alternate compression and expansion in the presence of liquid sprays, a series of banks of hurdles providing vertical passages in separate stages of successively diminishing aggregate cross sectional area. A washing tower 1 having a gas inlet 14 and outlet 4 is provided with a number of banks of hurdles composed of wooden or other slats set on edge and spaced apart in rows arranged consecutively at rightangles. The banks 15, 16, which constitute the first stage, may be composed of slots “in. wide, less than 4in. high, and spaced about 3in. apart to provide a gas passage of total area over four times the cross-sectional area of the wood in any row. A second bank 22 is made up of thicker slats preferably lin. wide and 2in. apart and the gas passage area may be twice that of the slats. Spray pipes 24 direct water, oil, &c. upwardly against the bottom row, or they may be dispensed with if the gas contains little dust. A third bank 25 is composed of slats which may be lin. wide, 2in. high, and 1“in. apart, the gas passage area being about the same as that of the slats. Spray pipes. 29 discharge downwardly upon the uppermost bank and additional upwardly discharging pipes 27 may be provided. A further series 28 may supply water to the top of the intermediate bank 22. A perforated cone 13 is located above the gas inlet to prevent splashing therein. A flush valve 7 and spray pipes 10 for stirring up accumulated sludge are provided at the base of the tower.
Patent GB-334769-A (GB)
IPC: G05D13/00
Filed: 1929-10-28
Abstract: 334,769. Motorenfabrik Deutz Akt.-Ges. Nov. 12, 1928, [Convention date]. Driving-mechanism.-A governor a is driven from a shaft d of a motor engine by the variable friction gearing e, p and l and pinions m and n. The wheel p is carried on an arm s pivoted at r and consists of two friction discs spring pressed by flat springs q on to the sides of the wheels e and l. The sleeve f is keyed to shaft d along side the wheel e and carries a toothed rim g on rollers h situated in wedge shaped notches in the rim g. The toothed rim g and the wheel m mesh with a pinion, so that, should the friction gearing fail, the rollers h become wedged and the drive is transmitted solely through the pinions, preventing the maximum speed of the engine being exceeded.
Patent GB-843011-A (GB)
Title: Improvements in batch weighers
Inventor: THORSSON MATTHEW THEODORE WESL
IPC: G01G19/32
Filed: 1956-10-29
Abstract: 843,011. Batch weighing. FAIRBANKS, MORSE & CO. Oct. 29, 1956, No. 32913/56. Class 40 (1). A batch weigher has two electrical weighing systems 10, 12 co-operating in succession with a common control circuit 67. As shown, each of two hoppers is supported by a load cell 20, 44 comprising a bridge of strain gauges supplied with A.C. The bridge output from one cell is combined with a counter-phase voltage from a network 30 representing the unladen weight of the hopper, an in-phase voltage from a network 34 representing the weight short of the total at which the feed rate is to be reduced and a counter phase voltage from a network 32 representing the full batch weight. The other cell is similarly associated with networks 46, 50 and 48. On the operation of a starting button 112, relay 136 pulls up and locks. Relay 118 also is energized via contact 120 of a relay (not shown) operated via amplifier 56 when the input to the amplifier is zero. Relay 118 locks and energizes motor 104 to drive switch 52, 102 to its second terminals whereupon 118 is unlocked and since there is now an input to amplifier 56, contacts 120 open and 118 does not re-operate. Magnet 16<SP>1</SP> is operated in this position to open the main feed valve for the first hopper. When the output of cell 20 has reached such a value that the input to amplifier 56 is zero, 118 pulls up again to cause another step. In this position, the main valve is closed, network 34 is cut out and magnet 18<SP>1</SP> opens a " dribble " valve until the input to amplifier 56 again reaches zero. Relay 118 then causes the step to position 4. In positions 4 and 5 the other hopper is filled in a similar way. The switch then moves to its first terminals and relay 138 unlocks relay 136 to terminate the cycle.
Patent GB-189803-A (GB)
Title: Improvements in and relating to parachutes
IPC: B64D17/72
Filed: 1922-12-02
Abstract: 189,803. Cormier, G. L. Dec. 3, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Parachutes.-A parachute is released from its container by a releasing device operated by the thrust of a partition acted upon by atmospheric pressure. Alternatively, or as an additional precaution, the releasing device may be actuated by a propeller set in motion during descent. The container is made of fabric and is divided into compartments by partitions I into which the ropes K are inserted in the manner indicated. A small auxiliary parachute may be attached to the body and suspended from the main parachute to reduce swinging.
Patent GB-503806-A (GB)
Title: Improvements relating to cooking vessels
IPC: A47J36/18
Filed: 1937-11-30
Abstract: 503,806. Cooking-vessels. CRODCHER, A. B., and PARSONS, H. J. Nov. 30, 1937, No. 32991. [Class 66] A device to be placed on the bottom of a pan to prevent burning consists of a perforated metal disc, Fig. 2, provided with a downturned peripheral edge, and a pair of perforated half-circle ring plates, Figs. 5, 6, formed with similarly down-turned edges and adapted to be attached together surrounding the disc by means of hooks E provided at the ends of one plate engaging in slots F at the ends of the other.
Patent GB-1501826-A (GB)
Title: Screen printing or coating apparatus
IPC: B41F15/40
Filed: 1976-08-09
Abstract: 1501826 Screen printing J A BLACK 9 Aug 1976 [21 May 1976] 33103/76 Heading B6C In a reciprocating screen printing machine a squeegee 32 and a flow coater panel 40 together form an ink reservoir 90 and excess ink can flow back to the reservoir 90 through passages 32<SP>1</SP> in the squeegee 32. Panel 40 pivots by an amount dependent on the viscosity of the ink and if this is too high a spring biased arm 50 actuates a switch 120 to supply a solvent through tube 158 or 158a.