baber/WOPTO huggingface dataset:
Patent GB-733293-A (GB)
Title: Pneumatic system shut-off valve for measuring instruments
IPC: F16K5/18
Filed: 1953-10-12
Abstract: 733,293. Valves; fluid-pressure servomotor Control systems. FOXBORO CO. Oct. 12, 1953 [Oct. 23, 1952], No. 28038/53. Class 135. A rotary shut-off valve interposed between two passages 29, 30, Fig. III, has a bifurcated body with a spring 36 pressing the two legs apart, and the head portion 33 carries indication means aligned with the opening between the legs. The body of the valve is made from hornlike resilient, but soapy, nylon plastic and the spring is of beryllium copper. The valve is held in position by a face plate 23 which engages over a flange on the body, and a packing ring 35 is interposed between the flange and the valve housing. As shown, the indication means comprises a screwdriver slot by means of which the valve is rotated. Valves according to the invention may be employed as on-off valves 34A, 34B and 34C, Fig. VIII, to isolate a motoractuated valve 38, to shut off a pressure fluid supply 48 from a control unit 37, and to shut off a flow-measuring unit 40 from access to the unit 37 respectively. The flow unit 40 consists of an orifice plate in a line 39 and the differential pressure across the plate is recorded by a bellows-actuated pen 46 and is fed into the control unit 37. The output from the control unit is recorded by a bellows-actuated indicator 55 and is fed to valve 38 which regulates the flow in line 39.
Patent GB-1317795-A (GB)
Title: Electric arc welding
IPC: B23K9/173
Filed: 1970-06-10
Abstract: 1317795 Welding by fusion KOBE SEIKOSHO KK [trading as KOBE STEEL Ltd] 10 June 1970 [10 June 1969] 28042/70 Heading B3R In gas-shielded, consumable electrode arcwelding of plate members with I or V preparations, welding current having a rectangular waveform is used such that, at recurring intervals, the arc is established and alternately extinguished, droplet transfer being exhibited during the existence of the arc. The welding current waveform can take the forms shown in the figure. In Fig. 1 (a) a rectangular waveform with periods of zero current and voltage is shown. In a modification of this, Fig. 1 (c) a high frequency voltage is applied during the zero current phase, to provide an HF spark discharge to re-start the arc. In Fig. 1 (b) there is shown a waveform comprising low constant current and voltage levels with superposed periodic rectangular pulses. A pilot arc burns during the low current periods. The welding parameters are arranged so that spray or globular transfer occurs during the periods when the arc is burning. The electrode is flux-coated and the shielding gas can comprise a mixture of Argon with 15% carbon dioxide. These gases can be used separately. Alternatively a mixture of argon and oxygen can be used. Preferably the current density in the arc is from 100-300 amp/mm<SP>2</SP>, and the arcing time is from 0À3 to 5 seconds, with the arc extinguished period being from 0À2 to 3 seconds. Examples are described, together with various weld preparations and dimensions.
Patent GB-704489-A (GB)
Title: Improvements connected with counter scales of the over and under weight type
Inventor: ROUND DAVID STANLEY
IPC: G01G1/18
Filed: 1951-11-30
Abstract: 704,489. Weighing-apparatus. AVERY, Ltd., W. & T. Nov. 28, 1952 [Nov. 30, 1951], No. 28097/51. Class 143 [Also in Group XIX] In a counter scale of the over- and under-weight type employing a light projection indicator a screen or graticule 16 is mounted on a beam 15 fulcrummed on a torsion strip 18 the tension of which is adjustable to vary the arc of motion of the screen or graticule corresponding with a particular degree of over or under weight. As shown, the torsion is adjusted by a screw 24 expanding or contracting the limbs of a fixed U- shaped bracket 19 between which the strip is mounted. The beam 15 is connected to the weighbeam by a link 14. One end of the weighbeam carries an obliquely mounted adjustable screw so that the indicator scale may read zero corresponding to a predetermined load on the weighbar. The graticule is arranged between a fixed light source and lens system and an image of it is reflected from an inclined reflector on the base of the weighing scale upwards to another reflector and a ground glass viewing screen against which are indicia corresponding to the correct weight and maximum permitted excess weight.
Patent GB-1112964-A (GB)
Title: Heat exchange apparatus
IPC: F28G7/00
Filed: 1965-07-05
Abstract: 1,112,964. Cleaning tubes by shock-waves. CABOT CORPORATION. 5 July, 1965 [13 July, 1964; 4 Jan., 1965], No. 28282/65. Heading F2N. A gas stream carrying suspended particulate solids is passed through elongated passages 2 in a heat exchanger on to which the said solids tend to adhere; objectionable build-up of these solid deposits is prevented by periodically propagating a pressure pulse or shock-wave through the gas stream in a direction opposite to its regular flow. The shock-wave may be produced by chemical, mechanical or other known means. In the embodiment shown in Fig. 1 the shock is produced by a short pulse discharge of a gas or of air from orifices 10 in outlets 8 spaced along a tube 22 at a predetermined distance from the outlets of the exchanger passages 2. The discharges, which take place at intervals of between 5 to 40 minutes, are controlled by a solenoid or other valve 16. Other rows of the exchanger tubes 2 parallel to the row shown in Fig. 1 (Fig. 3, not shown), may have similar rows of orifices 10 facing their ends, the various rows of orifices being discharged at separate intervals.
Patent GB-408613-A (GB)
Title: Improvements in means for increasing the utility of coffee
IPC: A23F5/02
Filed: 1932-10-11
Abstract: The taste and aroma of raw coffee is improved by treating the beans before roasting with aqueous solutions of aldehyde, especially acetaldehyde.  The process may take place at raised temperature, e.g. 100 DEG C.
Patent GB-907092-A (GB)
Title: Improvements in or relating to harvesting machines
IPC: A01D41/12
Filed: 1960-08-16
Abstract: 907,092. Reaping machines. FRITZMEIER, R. Aug. 16, 1960 [Aug. 22, 1959], No. 28387/60. Class 6(3). A dust-confining hood 4 is provided on a combine-harvester between the driver's seat 5 and the cutting mechanism 1 and extending over the full width of the latter, at least the upper part of the hood being transparent so that the driver, while shielded from dust, has a full view of the cutter-bar. The hood comprises a flexible cover stretched over a collapsible framework 9, 10, 11, 12, the sides 7 and rear part 8 of the cover being of canvas and the top part being of transparent polyvinyl chloride. The hood is readily collapsed, as shown in Fig. 4, but is held extended by a strut 18 which is wedged between the transverse cross-members 10, 12 and has a depression to accommodate the central strut 13. A fan 21 may be provided beneath the hood to exhaust dust laterally of the vehicle the fan being driven by a belt 25 from the shaft 23 of the cross-auger 24.
Patent GB-975175-A (GB)
Title: Grinding wheel with adjustable abrasive segments
IPC: B24D7/06
Filed: 1961-08-04
Abstract: 975,175. Grinding wheels. CONSOLIDATED DIAMOND DEVELOPMENT CO. Ltd. Aug. 4, 1961 [Aug. 25, 1960], No. 28452/61. Heading B3D.  A face-type grinding wheel comprises a wheel body having in its flat working face 14 a plurality of circumferentially-spaced sockets 30 arranged in a series of circles concentric with the axis of rotation of the wheel, inserts 40 removably and adjustably disposed in some or all of the sockets, and abrasive elements 42 of elongated form fixed to the exposed face of the respective inserts, the arrangement providing that, by suitable angular adjustment of the inserts in their sockets, the abrasive elements present a greater or less width of operative action as the wheel is rotated. The wheel 10 consists of a metal body in which the sockets 30 of cylindrical shape are machined. The inserts 40 are of mild steel and arranged to fit within the sockets, each insert being retained in its adjusted position by a screw 61 passing through the wheel into engagement with a V- shaped groove 66 in the side of the insert. A rubber ring 58 is fitted in a groove 60 around the insert to exclude dust. Each abrasive element 42, which may be of crushed diamonds in a metallic matrix, is bonded into a groove in the face 48 of the insert 40 by solder or an adhesive.
Patent GB-1464825-A (GB)
Title: Apparatus for determining the degree of gas impermeability for watch cases and like articles
IPC: G01M3/32
Filed: 1975-07-07
Abstract: 1464825 Testing watchcases for sealing efficiency OMEGA LOUIS BRANDT & FRERE SA 7 July 1975 [12 July 1974] 28511/75 Heading G1N The effectiveness of the sealing of a watchcase 19 is determined by placing it in a first sealed chamber 4 whose internal pressure is adjused by valves 8, 9 to be equal to that of a second sealed  chamber 5, any subsequent difference in pressure due to gas leaking into or out of the watchcase being sensed by a bellows 7 attached to one electrode of a capacitor 11, whereby the frequency of an oscillator 13 is varied by an amount indicative of the degree of gas permeability of the watchcase. The bellows 7 may alternatively be a diaphragm or a Bordon gauge tube.
Patent GB-428668-A (GB)
Title: Improvements relating to photographic reproduction
IPC: G03F1/54
Filed: 1934-10-05
Abstract: 428,668. Producing photo-mechanical printing-surfaces. SZIGETI, L., 94, Nyar U., Ujpest, Hungary. Oct. 5, 1934, No. 28566. [Class 98 (ii)] Lines outlining the design from the background are produced by making a negative by exposure with or without the use of an interposed screen element and by subsequent development, re-exposure of the negative with or without an interposed screen element, either without or with partial fixing and by re-developing and fixing. As shown, after the first exposure and development a negative comprises a white field 1 and a dark background 2. A pattern 3 is produced on the white field 1 by a second exposure through a screen by direct contact or by projection. After re-development a white outline 4 is produced.
Patent GB-1137227-A (GB)
Title: Apparatus for fusing powder images
IPC: G03G15/20
Filed: 1966-06-27
Abstract: 1,137,227. Printing processes. RANK XEROX Ltd. 27 June, 1966 [1 July, 1965], No. 28666/66. Heading B6C. [Also in Divisions B3, G1 and G2] In apparatus for fusing a thermoplastic resin powder image on a support material comprising a pressure roller and a fuser roller containing a heating element, a method of bonding a polymer of a fluorinated hydrocarbon to the copper or oxidizable copper alloy fuser roller comprises applying a coating to the roller to prevent the formation of loose particles of cupric oxide when the roller is heated, and then applying the polymer to the coating. The coating may be of nickel or cupric oxide and the polymer a tetrafluoroethylene resin, e.g. that known under the registered Trade Mark Teflon. In the example, the polymer is applied to a heating roller suitable for use in the xerographic fusing device of Specification 1,122,628, the copper or copper alloy roller having stainless steel end caps (11, 12), Fig. 3 (not shown), silver soldered to the roller.
Patent GB-408675-A (GB)
Title: Improvements in apparatus for music writing, poster printing and the like
IPC: B41K1/08
Filed: 1932-10-14
Abstract: 408,675. Printing. CLAYTON, D. I., 54, Birdhurst Road, South Croydon. Oct. 14, 1932, Nos. 28758/32 and 3645/33. [Class 100 (ii).] Hand-printing apparatus ; types ; holders for detached types.-In handprinting apparatus of the type comprising a platen or printing board across which is disposed a relatively movable bridge member for positioning type adapted to be depressed for impression by hand, for printing music, posters &c., provision is made for adjustably supporting and positively locating the type in the bridge member. In the form shown in Fig. 2, a type-receiving frame comprising a U-shaped member 9 and an adjustable cross-bar 9<a> is transversely slidable on the cross members of a carriage 6 slidably mounted on a base board 1, on which a sheet is secured by clips 2, scales 12, 8 being provided to facilitate adjustment of the frame 9, 9<a> and carriage 6 respectively. Each type has lugs on its ends engaging guide notches 14<a> in the frame members 9, 9<a>, permitting ready removal of the type, and also depression relatively to the carriage 6. A holder for dummy type, serving as a composing guide, may be attached by means of hooks 15. In the modification shown in Fig. 3, the sheet is secured to a platen 1 slidable on rails beneath a stationary typereceiving bridge 6 provided with a long slot 6<c> having recesses or projections 6<d> on its edges, the types having lugs or grooves to correspond. The platen may be locked against movement during printing. Tails and connections to letters and music signs may be ruled in by using the edges of the bridge 6 as a guide for a pen &c., and inclined lines may be drawn by means of guides clipped on to the bridge 6, or by adding a clip 28 carrying a swivelled pen guide 27, the clip being slidable on bars 29 on which the bridge may be adjusted to a limited extent by cam, screw, or other means. To provide correct register of the types, a special block 34, Fig. 8, may be provided, having lugs to engage the notches 14<a>, Fig. 2, or 6<d>, Fig. 3, and may have lines 35 corresponding in music stave lines. For ink impressions, the types are normally held in a rack, resting on an ink pad ; for making resist impressions for etching, greased or waxed sheets are interposed between the types and the plate receiving the impressions.
Patent GB-938275-A (GB)
Title: Frame output circuit
Inventor: PANDEY KAILASH NARAIN
IPC: H03K4/08
Filed: 1960-08-19
Abstract: 938,275. Transistor frame time-base output circuits. PYE Ltd. Aug. 15, 1961 [Aug. 19, 1960], No. 28819/60. Class 40 (6). A frame time-base output circuit for the cathode-ray tube of a television receiver comprises an output transistor connected in the grounded-emitter configuration preceded by an emitter follower stage, feed-back being applied to the emitter follower from the output transistor in order to linearise the output current waveform. A sawtooth waveform from a frame oscillator is fed to the base of emitter follower T1 the output from which is taken across R3 and passed to the base of the output transistor T2 which has for its load deflection coils L1 partly connected in parallel with a tapped choke L2. Negative feed-back is applied over capacitor C5 and variable resistor R2 from the collector of transistor T2 to the input of the emitter follower T1 so as to provide linearity over the top portion of the output waveform. In addition, positive feed-back is applied over variable resistor R4 from the emitter of transistor T2 to the input of the emitter follower, both the negative and positive feed-back voltages being applied between capacitors C2 and C3. The output transistor T2 is protected against the large negative-going spike in the output waveform, resulting from the feed-back, by connecting the collector of transistor T2 to earth through diode D1 and capacitor C6 such that the capacitor charges during negative pulses and discharges through resistor R7 to earth in the periods between such pulses. Capacitors C7, C8 and resistors R8, R9 associated with the choke L2 provide positive pulses for flyback suppression.
Patent GB-1399316-A (GB)
Title: Method of manufacturing a lead-through member
IPC: H01L23/10
Filed: 1973-06-18
Abstract: 1399316 Ceramic-metal seals PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 18 June 1973 [21 June 1972] 28848/73 Heading B3V [Also in Division C1] A lead through member is produced by sealing an iron-nickel-cobalt alloy conductor 1 through an aperture 2 in a ceramic component 3 using a suspension of a glass powder consisting of in mole per cent TiO 2  5-25; B 2 O 3  19-56; Zn 29-57; Li 2 O 3À0-5À0; Al 2 O 3  0-6; which powder is then heated in a nitrogen/hydrogen/water vapour atmosphere at a temperature in the range 925 to 1125 C. to form a bead 4, and then cooling the assembly to room temperature. During cooling the assembly is maintained at the annealing point of the glass for at least 15 minutes. Specifications 1,251,904 and 1,359,050 are referred to.
Patent GB-713730-A (GB)
Title: Improvements in or relating to hydrofoil craft
Inventor: HOBDAY STEPHEN WILLIAM
IPC: B63B1/28
Filed: 1948-10-28
Abstract: 713,730. Hydroplane vessels. HOBDAY, S. W. Oct. 28, 1948. No. 28927/47. Class 113(2) In a craft having hydrofoils 3, the pitch of which can be varied by a control device travelling with the craft, and comprising a partially submerged vane or vanes 21 suspended from the front of the hull to pivot trailingly about an axis 22 transverse to the hull, a mechanical transmission mechanism extends from the vanes to the hydrofoils to change the pitch of the latter responsively to change in depth of immersion of the vanes. Each vane 21 is shaped to present to the water a tapering surface decreasing in width from the pivoting axis downwards, is curved with its lower end directed towards the rear of the craft and conforms with the profile of the hull to enable the vane to lie against the hull when deflected to its full extent. Movement of the vane is transferred by a rod 27 through a lost motion device 30, 32, 33 to a lever 24 fixed to a shaft 10 having secured thereto levers 25 and 26 and a crank 9 pivotally connected to a rod 8 extending to the hydrofoil 3 which is supported by a pair of struts 2. The lever 25 is adapted to abut against a bracket 23 to limit the rotation of the shaft 10 and hence the pitch of the hydrofoil 3, further movement of the vane 21 to its fully deflected position being permitted by the lost motion device. The lever 26 is connected to a viscous fluid damping device 34. A fixed hydrofoil 6 is mounted on a rear strut 5 which carries the screw 7.
Patent GB-322583-A (GB)
Title: Two stroke internal combustion engine
IPC: F02B25/00
Filed: 1928-10-09
Abstract: 322,583. Hodgins, A. Oct. 9, 1928. Pumps, centrifugal. - In a two-strokecycle engine, an engine driven fan A supplies air to a carburettor C mounted on the engine admission pipe. The piston opens the exhaust port before the admission port and has two sets of piston rings.
Patent GB-544703-A (GB)
Title: Process for the manufacture of cellular rubber having fluid-tight cells
Filed: 1939-10-30
Abstract: 544,703. Cellular rubber. SOC. FRANCOBELGE DU CAOUTCHOUC MOUSSE. Oct. 30, 1939, No. 28993. Convention date, Nov. 14, 1938. [Class 70] Cellular rubber having fluid-tight cells is made by subjecting a part of the pure gums used to a pre-treatment, the purpose of which is to decrease or delay the effects of the vulcanization on that part of the mixture. The pre-treatment may be a modification of the state of polymerization by mastication in the cold state, e.g. mixing for 1-2 hours in a mixer cooled to 20-30‹ C., or at 200‹ C. for a short time, or by cutting in pieces and drying the crude rubber in the hot state in vacuum drying ovens with subsequent oxidation in the presence of air, or by treating crude plantation rubber with chlorine, bromine, hydrogen or the like. The Specification as open to inspection under Sect. 91 states that the plastified component of the mixture may be a synthetic rubber specially treated so as to decrease its capacity for vulcanization. This subject-matter does not appear in the Specification as accepted.
Patent GB-699886-A (GB)
Title: Improvements in precision weighing balances
IPC: G01G1/00
Filed: 1951-12-11
Abstract: 699,886. Weighing apparatus. PROLABO SOC. POUR LA FABRICATION ET LA VENTE DES PRODUITS ET APPAREILS DE LABORATOIRE RHONE-POULENC Dec. 11, 1951 [Dec. 11, 1950; March 12, 1951], No. 29022/51. Class 143 An auxiliary weighing device (pendulum weight or spring) is arranged to co-operate with the beam of a balance to give a preliminary approximate indication of the weight on the scale pan so that the operator may perform the normal weighing more quickly. When the beam 3, Fig. 1, is deflected beyond, the normal, an extension 13 thereon engages a roller 14 to operate a parallel link motion 15, 16, 17, whereby the contents of the pan 1 are weighed against the pendulum weight 21, the result being indicated by a pointer 24 and scale 25. In an alternative embodiment, Fig. 2, the beam extension engages a cantilever leaf spring 26, the length of which is adjustable by a screw 28, and the vertical position of which is adjustable by rocking the crank 32 by a screw 35. The weight indication is given by an extension 37 of the normal balance scale carried by an arm 8 secured to the beam, the scale reading being projected by an optical system. It is also stated that the auxiliary weighing device may co-operate in unspecified manner with the one of the scale pans, and that the device may have two ranges of sensitivity; also that the balance may be of the type having a photo cell to indicate the balance setting electrically.
Patent GB-1445960-A (GB)
Title: Apparatus for recovering material from liquid waste
IPC: C02F3/00
Filed: 1975-07-10
Abstract: 1445960 Electrolytic recovery of silver from photographic solution D PENNELLIER & CO Ltd 10 July 1975 29034/75 Heading C7B Useful material is recovered from liquid waste, e.g. silver from spent photographic solution, in apparatus comprising a holding vessel 1 for receiving the waste e.g. via pipe 2, with a first sensor e.g. float switch S1 responsive to the amount of waste therein, a recovery vessel 3 provided with means for recovery of the material e.g. electrodes 4 connected to power supply 5, means e.g. pump 6 for transferring the waste from vessel 1 to 3, a second sensor e.g. float switch S2 responsive to the amount of waste in vessel 3 and arranged to control (via contact S2a) the waste-transfer means to operate only when the amount of waste in vessel 3 is less than a predetermined value and (via contact S2b) the recovery means to operate only when the amount of waste is not less than a predetermined value, and means e.g. solenoid valve controlling outlet pipe 7 for discharge of waste, the recovery and waste-transfer means being further under the control of first sensor Sl e.g. via movable contacts S32, S31 of switch 3 whereby they are rendered inoperative when the amount of waste in vessel 1 is less than a predetermined value. When the amount of waste in vessel 1 is more than its predetermined value, the first sensor S1 controls a timer comprising cam 12 driven by motor 13, being arranged to operate (via switch S3) the recovery and waste transfer means, or the waste-discharge means, in alternation. The treated waste can be recycled, Fig. 2 (not shown).
Patent GB-1409962-A (GB)
Title: Metal-amine complex accelerator for polyester resin curing
IPC: C08L67/00
Filed: 1973-06-19
Abstract: 1409962 Polyester resin catalysts AIR PRODUCTS & CHEMICALS Inc 19 June 1973 [1 Sept 1972] 29086/73 Heading C3P Unsaturated polyester resins are cured with a combination of a free radical initiator and a metal co-ordination complex formed in solution from a metal salt and a tertiary amine of which at least 25% molar is triethylene diamine, the molar ratios of amine to metal salt being at least 1 : 1. Also present may be an unsaturated monomer, e.g. styrene, a thermoplastic resin, e.g. polymethyl methacrylate, filler, thickener, glass reinforcement, and alkylated polyvinyl pyrrolidone. Exemplified initiators are t-butyl perbenzoate or a mixture thereof with t-butyl peroctoate, CoCl 2 , CoCl 2 /ZnCl 2 , or cobalt naphthenate or acetate and triethylene diamine or mixtures thereof with dimethylethanolamine. Dipropyleneglycol, glycerol and dioctyl phthalate are used as solvents.