baber/WOPTO huggingface dataset:
Patent GB-441528-A (GB)
Title: Improvements in or relating to rotary engines, pumps, compressors and the like
IPC: F04C9/00
Filed: 1935-06-04
Abstract: 441,528. Rotary engines. RIGAUT, R., 15, Rue ThÚodore de Banville, Paris. June 4, 1935, No. 16261. Convention date, June 5, 1934. [Class 110 (ii)] A rotary engine or the like comprises two intermeshing equal concentric spherical heli ces displaced from one another by an angle, the axes of the two making an angle with each other such that the elements contact in the plane of the axes. The elements 1 2, on shafts 5, 6 may both rotate and be coupled by an Oldham coupling, Cardan joint, or otherwise, or one may be fixed and the second given a conical gyratory movement by the crank of a shaft forming an inclined crank-pin on which the helix is loose. The helices may be single or multithreaded. To obtain high compression two co-axial casings may be associated having the same centre and pitch, but limited to spheres of different radii. The member 1 may have a hollow spherical cap 3 grooved to take teeth of an Oldham coupling projecting from a spherical hub 4 on the member 2.
Patent GB-300485-A (GB)
Title: Improvements in and relating to automobile bodies
IPC: B60J7/20
Filed: 1928-06-05
Abstract: 300,485. Altenbach, O. June 5, 1928. Hoods for dickey seats comprise a frame and a cover separately extensible from and foldable into a compartment formed in the back of the dickey seat and attachable to the top of the driver's seat. A shown, the rear hood is provided with a framework comprising doors or flaps 24 hinged to the dickey seat back 15 and adapted to be raised vertically to form the rear vertical members. Hinged to the flaps 24 are the horizontal top arms comprising telescopic members 30 - - 32 the member when extended being adapted to be clipped to the front hood or top T. The flaps 24 are adapted to enclose a receptacle 17 in which is housed a spring roller 19 carrying the cover 20, 21 which can be drawn out over the frame members and clipped to the front hood. Side curtains may form part of the cover and are folded in to the cover as shown in Fig. 8 before the latter is rolled up on the roller 19 when it is desired to stow the rear hood in the receptacle 17.
Patent GB-895946-A (GB)
Title: Improvements in or relating to sheet feeding apparatus
Inventor: HALDEN JOSEPH GERALD BROCTON
IPC: G03B27/62
Filed: 1957-05-23
Abstract: 895,946. Feeding sheets. OZALID CO. Ltd. Aug. 25, 1958 [May 23, 1957], No. 16354/57. Class 100(1) Pile tables; sheet-separators: In a sheet feeding apparatus for use with a photo-printing machine wherein masters to be copied and light-sensitive material in web form are fed into the machine by motor-driven or hand-operated means, several stacks 31 of master sheets are located transversely across the back 8 of a tray 1 with their lower edges resting on a foldable stop 2, and the top sheet of each stack is separated by a friction roller or band which is urged towards the stacks. As shown in Fig. 1, the tray 1 is inclined, has three foldable stops 2, 3, 4 to accommodate sheets of different lengths, and is subdivided lengthwise by hinged separator plates arranged between the stacks. The top sheets of the stacks are separated simultaneously by a friction roller 12, extending the full width of the tray 1, mounted in slots in the side walls 14 of the tray. A tension device comprising endless belts 15 on pulleys on the spindles of the roller 12 and of a roller 9, and pulleys 17 on yoke members 18 which are urged downwardly by coil springs 20, ensures that the friction roller always engages the sheet stacks. The tension device may be replaced by a hydraulic reaction device which allows a more precise loading of the roller. The roller 12 may be rotated manually, or it may be driven by belts 23 from a driven roller 24 of the machine. The separated master sheets are fed by the roller 12 over a bridge-piece 36 on to a conveyer belt 11 which feeds them to the photo-copying machine. In the modification shown in Fig. 2, the master sheets are separated from the stacks 31 by a wide . endless friction band 30 carried by two rollers 26, 27 each mounted in slots in the side walls 14 of the tray 1. Each stack 31 rests on a backing- plate 32 urged away from the back 8 of the tray by springs 33 so that the top sheets are always in contact with the band 30. The rollers 26, 27 may be urged downwardly in their slots, by spring means. The band 30 may be hand-driven, or power-driven as in the case of the roller 12, Fig. 1. The upper portion of the band 30 is supported by a guide device 34 over which the master sheets are fed, and an upper sheet guide 35 may also be provided. Sheet-forwarders: Light-sensitive material, in the form of sheets cut from a web by a guillotine 45, Fig. 1, or a web which has been slit longitudinally, is fed to the conveyer 11 and associated with the master sheets separated from the stacks 31 between pairs of belts, running, respectively, over rollers 9, 40, 41, and 42, and rollers 24, 40, and 43.
Patent GB-896192-A (GB)
Title: Improvements in or relating to the bonding of ligno-cellulosic substances with fluoride-containing adhesives
IPC: C08L97/02
Filed: 1958-05-21
Abstract: A method for bonding ligno-cellulosic material using a thermosetting resin comprises the inclusion in the zone wherein the bonding is effected of an activator which is a fluoride or bifluoride of hydrogen, iodine, an alkali metal or ammonium, the iodine being associated with the fluoride only as iodine pentafluoride, said activator constituting about 0,01 to 0,5% by weight of the resin. Specified activators are hydrogen fluoride, ammonium bifluoride, potassium bifluoride, iodine pentafluoride, sodium fluoride and sodium bifluoride and mixtures thereof.  The resins may be of the phenol-formaldehyde, urea-formaldehyde, dicyandiamide-formaldehyde or melamine-formaldehyde types.  In Examples 1 and 2 board material is prepared from wood shavings using aqueous adhesive liquors containing thermosetting resin precondensates and the activators, and in Examples 5-7 thermosetting resin bonded plywood is produced incorporating the activator in the adhesive.  The resin precondensate and activator may also be dissolved in an alcohol, e.g. methanol, to give the adhesive composition.
Patent GB-231718-A (GB)
Title: Improvements in or relating to joiners' clamps and the like
IPC: B25B5/10
Filed: 1924-07-08
Abstract: 231,718. Watkins, P. July 8, 1924. Clamps.-For clamping together wooden &c. rods or the like to form rustic work, bamboo furniture, &c., a clamp is used which is adapted to enable two rods &c. to be clamped at adjustable angles while the are secured together by nailing, the cramp being constructed to permit ready insertion of the nails. As applied to a C-clamp in which one of the jaws 14 is mounted on a screw 12, and the other jaw is integral with the C-part 10, the jaw 14 is rotatably mounted at the end of the, screw 12 and is formed with two pairs of V-shaped recesses 24, 26; 23, 25, either pair of which can receive one of the rods to be secured together. The other jaw is formed of two fixed arcuate parts 15, 16, which constitute the upper part of the C-part 10 and are provided with three pairs of coacting V-recesses 19, 20; 18, 21; 17, 22, the lines joining the centres of the recesses being radial to the axis of the screw 12. A rod can be received between either pair of recesses in the upper jaw, and can be secured at its desired angle to a rod secured in either of the recesses of the lower jaw. Nails can be inserted between the jaws 15, 16, and the jaw 14 is hollow so that the nail can pass right through the rod held by the lower jaw. The lower jaw may be formed with one pair of recesses only, and these may be rounded. The construction of the clamp may be varied by constructing both jaws similar to 14, or both similar to 15, 16.
Patent GB-443884-A (GB)
Title: Improvements in and relating to cores for high-frequency coils
IPC: H01F41/02
Filed: 1934-06-01
Abstract: 443,884. Inductances. VOGT, H., 10, Garystrasse, Dahlem, Berlin. June 1, 1934, No. 16439. Void [Abridged as open to inspection under Sect. 91 of the Acts, Dec. 3, 1934]. [Class 37] Cores for high-frequency coils are made by evaporating the solvent from a mixture of magnetic powder with a liquid containing a solvent and a solid insulating binder. The magnetic powder consists preferably of particles with curved or rounded surfaces on which a thin insulating skin is produced by oxidation. As binding agents highly viscous cellulose derivatives, with resin and softening agents, may be used and these may be dissolved in hydrocarbon derivatives such as ketones, esters, glycol derivatives and acetals. The magnetic powder 4 may be compacted by shaking in a mould 7, Fig. 2, and the solution of the binding agent poured over it from a bottle 5, or the magnetic powder may be first mixed with the solution and then poured into a mould. The moulds may consist of gelatine masses with glycerine additions, or of rubber coated with gelatine. According to another method, Fig. 4, a winding 15 enclosed in a moulded body 14 is provided with a magnetic covering by dipping it in a vessel 17 containing the mixture of magnetic material with the solution of binding agent. The coil is dipped into the solution and dried, the operation being repeated until a sufficiently thick magnetic layer is formed.
Patent GB-298099-A (GB)
Title: Improvements in gas-meters
IPC: G01F15/00
Filed: 1927-06-21
Abstract: 298,099. Metropolitan Gas Meters, Ltd., and Forster, J. D. June 21, 1927. Counters actuated by revolving mechanism; stop mechanism.-In a gas meter in which the inlet valve is operated to shut off the supply of gas after the passage of a quantity of gas indicated by a pointer moving over a graduated dial, an adjustable stop is provided to arrest the movement of the pointer at a predetermined point and thereby prevent the meter being set by an unauthorized person to pass gas in excess of a predetermined quantity. In the device shown, a worm c<1> on a spindle c, which is rotated by the movement of the bellows, drives a worm-wheel c<2> on a spindle a<1> carrying a pointer a moving over a graduated dial b. The pointer a is set initially in contact with a stop pin d<1> on an adjustable pointer d after moving its spindle a' against the resistance of a spring c<3> to disengage the worm-wheel c<2> from the worm c<1>. As gas passes through the meter the pointer a rotates in an anticlockwise direction until it reaches the zero position, when a slotted disc c<4> operates a crank c<5> controlling the inlet valve. The pointer d is secured adjustably to the meter casing by a hollow screwed stud e operated by a tommy and the pointer a is secured to the spindle a<1> by a nut a<2>. In modifications, the pointer d is adjustably secured to the meter casing by a pinching screw or is carried by a sleeve fitted with a worm engaging a worm-wheel secured in the meter casing. The worm may be turned to adjust the position of the pointer d by means of a key of the " Bramah " pattern.
Patent GB-473913-A (GB)
Title: Improvements in or relating to materials for absorbing carbon dioxide
IPC: C01B32/50
Filed: 1936-06-13
Abstract: A material for absorbing carbon dioxide is obtained by mixing slaked lime and an aqueous solution of sodium acetate, agglomerating the mixture into granules, or tablets, and calcining the product at a temperature above the melting point of sodium acetate but below the temperature at which lime is dehydrated and anhydrous sodium acetate is decomposed.  A suitable temperature is 350--380 DEG  C.  The agglomerated mixture may be partially dried by storing at 110 DEG  C. before the calcination.  The calcination may take place in a rotary furnace.  Before use the calcined product is moistened with an aqueous solution of a non-volatile caustic alkaline substance, eg. caustic soda.ALSO:A material for absorbing carbon dioxide for use in respiratory appliances is obtained by mixing slaked lime and an aqueous solution of sodium acetate, agglomerating the mixture into granules or tablets, and calcining the product at a temperature above the melting point of sodium acetate but below the temperature at which the lime is dehydrated and anhydrous sodium acetate is decomposed.  A suitable temperature is 350-380 DEG  C. The agglomerated mixture may be partially dried by stoving at 110 DEG  C. before the calcination.  The calcination may take place in a rotary furnace.  Before use the calcined product is moistened with an aqueous solution of a non-volatile caustic alkaline substance, e.g. caustic soda.
Patent GB-515455-A (GB)
Title: Improvements in or relating to the production of decorative finishes on metal products
IPC: C23F1/00
Filed: 1938-06-02
Abstract: 515,455. Altering physical structure. COOK, M., MACQUARIE, C., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. June 2, 1938, No. 16593. [Classes 83 (ii) and 83 (iv)] Making ornamental metalwork.-Copper and copper-rich alloys are provided with a decorative surface finish by severe cold working followed by high temperature annealing to increase the grain size and then etching. The cold working effects a reduction of at least 96 per cent., may be carried out in several stages, and the heat treatment is at 1,000‹ C. If intermediate annealing at 550‹ C. be adopted, the final reduction must be 85 per cent. and final annealing temperature 1,000‹ C. The intermediate and final temperatures may be 900 and 750‹ C. respectively. Thirty to 70 per cent of the reduction may be. by cross -'rolling with intermediate annealing at 500 to 600 C. and final at 750 to 850‹ C. In another modification employing cross-rolling the penultimate annealing temperature is 450‹ C. and the penultimate reduction is from 85 to 90 per cent. Only a part of the metal surface may be treated to increase the crystal size; the whole sheet, tube &c. being cold rolled to an extent just below that required to produce the increase, and the areas where large crystals are required are then further worked by hammering or pressing.
Patent GB-1534577-A (GB)
Title: Distributed feedback diode laser
IPC: H01S5/00
Filed: 1976-04-23
Abstract: 1534577 Semiconductor lasers XEROX CORP 23 April 1976 [25 April 1975] 16600/76 Headings H1C and H1K A diode laser comprises a first plurality of layers 4 of a first semiconductor material and a second plurality of layers 6 of a second such material, the layers being interleaved as shown and including a rectifying junction 8 perpendicular to the plane of the layers 4, 6. Each layer has a thickness t which satisfies the equation where m is the laser mode, X is the wavelength of light generated in the first plurality of layers when they are electrically pumped, and n is the refractive index of the material of the layer in question. Instead of the layers of GaAs and GaAlAs shown, the alternating layers may be of GaP and GaAlP. The layers of GaAlAs may be etched away so that the p-n junction 8 exists only in the GaAs layers, Fig. 2 (not shown). Alternatively, after the aforesaid etching the p-n junction may be formed so that it follows the configuration of the resulting comb-like structure, Fig. 3 (not shown). In another embodiment, the cavities in the initial etched structure are filled with a single mass of GaAlAs(p) to produce a double heterojunction configuration, Fig. 4 (not shown).
Patent GB-1448433-A (GB)
Title: Process for preparing sorbic acid
IPC: C07D315/00
Filed: 1975-04-22
Abstract: 1448433 Sorbic acid NIPPON GOHSEI KAGAKU KOGYO KK 22 April 1975 [30 April 1974 1 Aug 1974] 16608/75 Heading C2C Sorbic acid is prepared by contacting γ-vinyl- γ-butyrolactone with an acid or cation-exchange resin at 30-150‹ C. and recovering the resulting acid. Mineral, aromatic sulphonic, aliphatic sulphonic and halogenated carboxylic acids may be used together with strongly acid and weakly acid sulphonic acid type resins. Homogenous or heterogenous contact, e.g. with solvents, may be used. The lactone may be prepared by the reaction of butadiene with inorganic acetate under pressure.
Patent GB-1391985-A (GB)
Title: Fluid-handling machines
IPC: F03C1/38
Filed: 1972-04-11
Abstract: 1391985 Reciprocating pumps motors and compressors K EICKMANN 11 April 1972 16628/72 Headings F1A, F1M and F1N In a hydraulic or pneumatic pump, motor, compressor or transmission comprising a rotor 1 with two axially-spaced groups of working chambers 3, 4 communicating via respective passages 13, 14 with ports in an end face 31 which sequentially register with inlet and outlet ports 17, 18 in an -end face 32 of a non-rotary member 6, the member 6 is axially movable by working fluid pressure to bias end faces 31, 32 into sealing contact. As shown, member 6 has cylindrical surfaces 41, 42, 43 slidably engaging corresponding surfaces in housing 2, chambers 8 and 9 being open to the inlet and outlet pressures to bias member 6 towards rotor 1.
Patent GB-472072-A (GB)
Title: Improvements in fuel injection internal combustion engines
IPC: F02M69/00
Filed: 1936-06-15
Abstract: 472,072. Oil engines. BOGHETTO, F. June 15, 1936, No. 16647. Convention date, June 15, 1935. [Class 7 (iii)] To avoid longitudinal eddies in the combustion chamber of a sparkignition engine, the passage b between the combustion chamber a and the engine cylinder is formed of two truncated cones with their wider ends facing the chamber and cylinder respectively. Fuel is sprayed into the passage at its throat and the sparking plug is disposed remote from the passage. The fuel injection period may terminate before the end of the compression stroke in which case air remains in the lower region of the chamber.
Patent GB-1216533-A (GB)
Title: Improvements in fluid flow valves
Inventor: HANSON GEOFFREY
IPC: F16K31/52
Filed: 1967-04-12
Abstract: 1,216,533. Valves. HATTERSLEY NEWMAN HENDER Ltd. 11 July, 1968 [12 April, 1967], No. 16664/67. Heading F2V. Butterfly closure member 17 is jammed against seat 11 during final rotary movement of actuaring spindle 12 by a cam 13 provided with a tooth 14 which forces blocks 15, 15a apart, against the action of springs 16, 16a, during this movement. In a modification (Figs. 2 and 3, not shown) the cam moves a single block against the action of a coil spring concentric with a shaft (22) corresponding to shaft 12.
Patent GB-1457630-A (GB)
Title: Precision punch press
IPC: B21D28/16
Filed: 1974-04-17
Abstract: 1457630 Punching TRANSFORM VERSTARKUNGSMASCHINEN AG 17 April 1974 [17 April 1973] 16738/74 Heading B4B [Also in Division B3] A precision punch press, for punching metal or plastics material, comprises a pressure intensifier for converting air pressure to oil pressure, the plunger 34 of which is connected via oil 35 with a piston 36. The piston rod 37 of piston 36 carries a punch 38 and a support 39 for guides 40 for holding a die 41 in axial alignment with the punch 38. The die 41 is mounted in a guide plate 23 itself loosely mounted on a base plate and the guides 40 are located in bores 23a in the plate 23. Bores 20a in the base plate 20 are of larger diameter than the guides so that should a lateral force be applied to the base plate it can move leaving the punch and die aligned. The pressure intensifier comprises pistons 32 connected by a common piston rod 33 to the plunger 34. Mounted on the piston rod 37 are fluid cylinders (44), Fig. 4 (not shown), actuating a hold down 45.
Patent GB-389102-A (GB)
Title: Improvements in and relating to engraving
IPC: B41C1/04
Filed: 1931-06-09
Abstract: 389,102. Thermionic valve circuits. DALTON, J. W., 16, Abbott Avenue, Wimbledon, London. June 9, 1931, No. 16812. [Class 40 (v).] In a process and apparatus for producing engraved surfaces with the aid of a mechanical cutter, e.g. a drill, the depth of cut is regulated by particular coils 10 which are energized by variations in the amount of light reflected in accordance with the variations in tone from the original on to the photo-electric cell 48. An interrupter disc 51 renders this light intermittent and the original '30 and block 31 to be engraved are mounted on a common shaft driven by the motor 26. The varying current in the cell 48 is transmitted after suitable amplification to a rectifier 46 and thence to a resistance, from which tappings are taken as shown to the grids of the valves 35 .. 35d, which are preferably of the type known under the Registered Trade Mark " Thyratron," one or more of which are rendered conducting according to the amount of light reflected from the original 30, whereby is completed the circuit of one or more of the actuating coils 10 of the cutter A. A cut is thus made of which the depth varies in accordance with the depth of tone of the original. The circuit may be modified by the use of alternating current, and by using different valves. To stop the discharge through the valves which has been started by raising the grid potential, the anode potential is reduced either by means of the rotary contact maker 32 included in the plate circuit; by using an alternating current source instead of a direct current source, or by applying to the plate a steady potential and a superposed varying potential obtained from the output of another valve to the grid of which is connected an alternator and battery. Alternatively, the means for scanning the subject and controlling the current flow to the electromagnets operating the drill may be of the kind described in Specification 351,462. For the capacity effect, an electrode plate is held in suitable spaced relation with the engraved plate so as to secure between the two a condenser effect. This variable capacity is in the grid circuit of a valve inductively coupled with the circuit of an oscillator valve, and the former valve serves to rectify the oscillating current set up, which, after amplification, is applied as before to a resistance having leads connected to the grids of the valves for operating the cutter.