baber/WOPTO huggingface dataset:
Patent GB-1494933-A (GB)
Title: Process for preparing impact resistant styrene polymers
IPC: B29C48/03
Filed: 1975-06-26
Abstract: 1494933 Cross-linking graft polymers HOECHST AG 26 June 1975 [28 June 1974] 27142/75 Heading C3G A graft polymer is produced by bulk or bulk/ suspension polymerization of a mixture of (a) styrene and/or a styrene derivative and acrylonitrile and/or another derivative of acrylic acid and (b) an ethylene/propylene/tercomponent rubber, an organic peroxide is added to the reaction mixture prior to or during polymerization and the graft polymer is subjected to a two-step extrusion, the first step being carried out at 130 to 240 C. to produce by shearing rubber particles of a size less than 1 micron and the second step being carried out at 200 to 280 C. to cross-link the rubber particles, the quantity, half-life and time of addition of the peroxide and the polymerization and shearing temperatures being chosen in a manner such that, after termination of shearing, the quantity of peroxide remaining in the polymer is from 0À05 to 0À5% by weight calculated on the total quantity of monomers and rubber. Examples are given in which styrene and acrylonitrile are grafted on to ethylene/ propylene/ethylidene norbornene rubber by a bulk-suspension process in which (i) di-t-butyl peroxide is used as initiator in the bulk stage, dibenzoyl peroxide is added prior to the suspension stage and the graft polymer is subjected to extrusion in a double screw extruder (1) at 180 C. and (2) at 230 to 250 C.; (ii) as (i) except that di-t-buty peroxide is also added prior to the suspension stage and the extrusion stage (1) is at 160 C.; (iii) at (i) except that stage (1) is at 200 C. and stage (2) at 220 to 240 C. and (iv) as (i) except that a mixture of dibenzoyl peroxide and t-butyl hydroperoxide is added prior to the suspension stage and stage (2) is at 240 C.
Patent GB-964938-A (GB)
Title: Improvements in and relating to the decoration of heat-resistance bases
Inventor: NEALE KENNETH WILLIAM JAMES
IPC: B41M3/12
Filed: 1962-07-17
Abstract: 964,938. Transfers. JOHNSON, MATTHEY & CO. Ltd. July 15, 1963 [July 17, 1962], No. 27390/62. Heading B6C. A decalcomania of the covercoat support film type, in which the design is applied to a gummed paper backing 1 beneath a support film 4 which constitutes the covercoat, comprises a design layer 2 formed of, or comprising, a goldcontaining composition, a covercoat support film formed of a resin-based material and, between the design layer and the covercoat film, a protective layer 3 of an oxidisable or polymerisable material which is impervious to the covercoat material and is inert to the gold in the design layer. The protective layer may comprise an alkyd, phenolic, urea or epoxy resin or a drying or semi-drying oil such as linseed or tung oil. Alternatively it may comprise the following composition-short oil alkyd resin (60% non- volatile in xylol) 25%, cellulose nitrate 6.25%, plasticizer 6.25%, high boiling solvent 62.5%. The support film may have the following composition-methyl methacrylate resin 54%, aromatic hydrocarbon 36%, phthalate plasticizer 2.4%, diluent 7.6%. The design layer may comprise a " liquid gold " preparation or a mixture of such a preparation and one or more ceramic colours or vitrifiable enamels.
Patent GB-355065-A (GB)
Title: Improvements in or relating to type casting moulds for composing machines
IPC: B41B7/04
Filed: 1930-09-13
Abstract: 355,065. Type-casting machines. ABRATE, J. B., 153, Boulevard de la Gare, Paris. Sept. 13, 1930, No. 27427. Convention date, Dec. 9, 1929. [Class 100 (iii).] Moulds.-The sliding mould-blade 19 has on its lower face a heel 22, which rests in a mortice formed in the baseplate 13, and projects at either side beneath the side-blocks 14, 15, in order to prevent the blade from rising.
Patent GB-507277-A (GB)
Title: A process for the production of iron powder
IPC: C21B15/00
Filed: 1938-09-20
Abstract: 507,277. Iron powder. DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT VORM. ROESSLER. Sept. 20, 1938, No. 27431. Convention date, Sept. 23, 1937. [Class 72] [Also in Group III] In the production of iron powder by the reduction of iron oxide by hydrogen, powdered iron is moistened with water in the presence of small quantities of an iron halide and exposed to the action of the air, preferably with stirring, a moderate temperature, say 120-200‹ C., being maintained, the oxidation product so obtained being reduced by hydrogen at 500-600‹ C. Before its reduction, the oxidation product may be heated to 350-400‹ C., preferably in the presence of air, say in a rotary furnace. The iron halide is preferably ferrous chloride, and it may be produced by adding ammonium chloride or hydrochloric acid to the powder when it is moistened. The resultant iron powder is of great fineness and reactive capacity and of very, low bulk weight. Its content of metallic iron may be raised by subjecting it to a second reduction with hydrogen.
Patent GB-988248-A (GB)
Title: A light source for projection purposes
IPC: G03B21/20
Filed: 1961-07-28
Abstract: 988,248. Lens arrangements for light sources. GRETAG A.G. July 28, 1961 [Aug. 8, 1960; July 3, 1961], No. 27540/61. Heading F4R. [Also in Division G2] A light source for projection purposes comprises a gas discharge lamp 12, e.g. a mercury vapour or Xenon lamp, two concave specular reflectors 14, 16 and two condensing lenses 18, 20 disposed around the light emitting part of the lamp and co-operating in pairs to collect substantially all the light emitted from the lamp, a deflecting mirror 22 in at least one of the light paths from the lenses and lenses 34, 36 arranged one in each of the light paths so as to form an image of each condenser lens in the picture field 24. The reflectors are spherical reflectors with their centres of curvature inside the column of gas 10. An additional lens 42 may be arranged in front of the picture field and a projecting objective arranged to throw the projected picture on a screen. The lenses 34, 36 are relatively displaced to allow for the differing lengths of the light paths and may vary in refracting power so as to form co-incident images of equal size in the picture field. In a modification, the deflecting mirror is arranged so that the direct and reflected light paths are parallel, the focusing lenses being arranged with their axes inclined to one another so as to produce co-incident images in the picture field.
Patent GB-323230-A (GB)
Title: Improvements in kneading machines particularly for mixing cake ingredients
IPC: A21C1/06
Filed: 1928-09-25
Abstract: 323,230. Williams, J. G. Sept. 25, 1928. Stationary mixers with rotary stirrers. - In a kneading- machine comprising a pair of parallel horizontal shafts fitted with kneading arms and working in a container, auxiliary kneading devices are provided comprising a second pair of parallel horizontal shafts with kneading arms arranged above the first pair. The driving shafts 5 - - 8 are interconnected by external gears and the kneading shafts are detachably mounted, the coupling comprising projections 12a, Fig. 3 on the beater shaft fitting into recesses H, Fig. 4 in the shafts 5 - - 8, clamping members such as screws 13 being provided.
Patent GB-483031-A (GB)
Title: Improvements in and relating to apparatus for stroboscopic observations
IPC: G01P3/40
Filed: 1936-10-10
Abstract: 483,031. Stroboscopes. LIST, H. Oct. 10, 1936, No. 27544. Convention date, April 14. [Class 97 (i)] A stroboscope comprises an oscillating drum shutter with a wide opening 4 and a slit 3 covered by a member 10 with a similar slit. Each slit is partly covered by a finger 5, pivoted on the axis of the drum 1, having an extension 7 with an inclined slot 6 engaging the pin 9 on the spring member 8 or 81. The screw 20, operated in the bearing 12 by the knob 17, produces an axial pressure on the spring 8<1>, also communicated by the rod 54 to the spring 8, for adjustment of the slit widths. The member 10 may be adjusted through a small angle, for example, by the pin 16 mounted eccentrically on the disc 15 rotatable by the knob 13. The frequency of oscillation of the shutter is controlled by the spring 28, deflected during the oscillation by the cam 24. The frequency is varied by the knob 32 which, through the screw 31, moves the slide 29, working in the housing 30, to vary the effective length of the spring. The setting of this control is communicated by the cord 33 to the rotatable scale 37. The housing 30 also serves as a handle for the apparatus. The oscillations are maintained electromagnetically by the armature 45 situated in a magnetic field and fed with a current which is periodically reversed. The finger 49, between two contacts 42 and 43 is attached to the disc 46, frictionally coupled to the shaft 2 by pressure from the spring 48. When the finger 49 makes contact with either 42 or 43 a current flows in one or other direction through the winding 44. When this circuit is completed by movement of the armature, the magnetic force continues the movement (allowed by the slip of the disc 46) until arrested by the increasing stress in the spring 28. The movement is reversed by the force from the spring and the finger 49 then swings on to the other contact and a continuous oscillation is produced. A cam 50 is provided, to make contact with the spring 52 if it turns through more than a certain angle, and so to damp out excessive amplitudes and irregularities of frequency.
Patent GB-1339687-A (GB)
Title: Conveyor apparatus
IPC: B21K27/04
Filed: 1972-06-13
Abstract: 1339687 Workpiece transfer devices PELTZER & EHLERS 13 June 1972 [29 Sept 1971] 27580/72 Heading B3H [Also in Division B8] A workpiece transfer device for a multi-stage press comprises a set of arms 11, 12, 13 each pivoted about fixed points 14, 15, 16 and carrying reciprocable bars 24 on which workpiece grippers 25 are mounted. The arms are pivoted by a double cam 22, 23 which co-operates with cam follower rollers 20, 21 on the outermost arms. The central arm 12 is connected by spring- links 17, 18 to the outer arms 11, 13 so as to move in parallel therewith. The bars 24 are reciprocated by individual oscillating crank arms 29, 30, 31 driven synchronously with the cam. The transfer device is used to convey lengths of cut-off wire stock between a series of dies 2, 3, 4 of a multistage bolt press.
Patent GB-710723-A (GB)
Title: Improvements in and relating to extrusion presses
IPC: B21C25/00
Filed: 1951-11-26
Abstract: 710,723. Extruding. HYDROPRESS, Inc Nov. 26, 1951 [Dec. 4, 1950], No. 27663/51, Class 83 (4) In an extrusion press the extrusion stem 20 is formed with a base portion 25 of relatively large diameter and a slender section 27 of decreased diameter extending from the base portion to fit into the billet container 19 of the press, and the container is formed with a recess 22 opening towards the extrusion stem to accommodate the base portion when the slender section of the stem enters the container during the extruding operation. Billets are fed from a vertically adjustable loading platform 31 on to the grooved top surface of a guide 28 in the recess 22 from which they are pushed by the extrusion stem 20 into the container line 23. The enlarged end 24 of the stem is held in the main cross-head assembly 12. A channel 34 in the stem accommodates the guide 28 when the stem moves forwardly for the portion 27 to occupy the lines 23. The construction is stated to allow a billet of relatively small diameter to be extruded without buckling a slender extrusion stem. Billets of large diameter may be handled on the press by using a container without a recess 22, and a stem of corresponding diameter.
Patent GB-1106244-A (GB)
Title: Water-soluble mono and disazo dyestuffs containing thiosulfate groups and their metal complex compounds and processes for preparing them
IPC: C09B62/507
Filed: 1965-06-30
Abstract: The invention comprises water-soluble mono-and disazo dyestuffs of the formula <FORM:1106244/C4-C5/1> and the complex metal compounds thereof, wherein D represents an aromatic radical which may contain a further azo group when m and r are both 1, K represents the radical of a coupling component, X represents a hydrogen, alkali metal or alkaline earth metal atom or ammonium, n is 0, 1 or 2, at least one n being 1 or 2, and m, p and r are each 1 or 2.  They may be obtained by (a) coupling aromatic diazo, tetrazo or azodiazo compounds with coupling components at least one of which contains 1 or 2 groups of the formula <FORM:1106244/C4-C5/2> or by (b) reacting mono- or disazo dyestuffs which contain at least one group of the formula <FORM:1106244/C4-C5/3> in an aqueous medium with salts of thiosulphuric acid while maintaining the pH of the mixture, the range 3 to 8 by adding an inorganic or organic acid, and by optionally converting the azo dyestuffs or the starting dyestuffs when using method (b) into the metal complex dyestuffs by treating them with metal yielding agents.  Suitable metal yielding agents are salts and complex compounds of Cu, Cr, Ni, Co and Fe.  Numerous examples are given for the production of the dyestuffs.  The dyestuffs are suitable for dyeing and printing natural and regenerated cellulose fibres, nitrogen containing fibres of animal and synthetic nature, wool, silk, polyamide or polyurethane fibres or leather.
Patent GB-361480-A (GB)
Title: Improvements in and relating to the calibration and testing of electricity meters
IPC: G01R35/04
Filed: 1930-09-17
Abstract: 361,480. Plug-boards. FERRANTI, Ltd. and FERRANTI, D. Z. DE, Hollinwood, Lancashire. Sept. 17, 1930, No. 27808. [Class 38 (v).] Apparatus for testing and calibrating electricity meters includes groups of connecting pins with means for simultaneously setting the spacing of the pins in each group to correspond with the terminal spacing on the meters. Loading coils may be connected into a group not occupied by a meter. Separate voltages may be applied to the individual group through the transformer described in Specification 333,148, [Class 38 (ii), Electric currents, Converting &c.]. As shown, slides 24, 25, separately operated by hand-wheels 12, 13 through worm gear and cam mechanism carry respective sets of plug contacts 1, 4, 7, &c. and 3, 6, 9, &c., while another set of plug contacts 2, 5,.8, &c. is spring- mounted in the baseplate and arranged so that on positioning of the meter the loading coil is disconnected.
Patent GB-279061-A (GB)
Abstract: 279,061. Zublin, J. Oct. 13, 1926, [Convention date]. Casting-machines; metal-pouring; moulds.- In pouring aluminium and similar metals or alloys into a chill mould having an open side which is gradually closed from the bottom during pouring, the closing means is arranged so that it does not slide on the mould. The closing means may comprise a number of bars placed upon the other successively, one horizontally across the open side or it may consist of a flexible sheet of metal secured to the bottom of the open side and gradually pressed, from the bottom upwards, to close the open side. In the modification shown in Fig. 1 the closing means comprise bars 14 hinged at 18 to form an endless band supported by rollers 15, 16 of a fixed frame 17. The mould 3 is moved vertically on guides 9 by a screwed spindle 12 which is rotated by a hand-wheel 11 and engages a nut in the cross bar 13. Hooks 19, Fig. 4, on the mould engage the ends of two of the hinge pins 18 and thus cause the bars 14 to be applied to the open side and then move with the mould. Molten metal is supplied by the fixed spout 21 and the joint between the bars 14 and mould is kept tight by spring pressed rollers 20. One of the rollers 15, 16 is adjustable to tension the band.
Patent GB-523146-A (GB)
Title: Improvements in or relating to means for the automatic filtration of used oil
IPC: B01D29/00
Filed: 1938-09-24
Abstract: 523,146. Filters. HUNYADI, V. L., and KOCH, J. Sept. 24, 1938, No. 27923. [Class 46] [Also in Group XXVIII]  In apparatus for filtering used oil, the filtrate on its way from the filter 34, Fig. 1, to a still or steam blower 68 passes through an upper container 44 in which air is confined above the oil. When, due to clogging of the filter elements 90, the pressure within the filter rises, a piston 48a closes a valve 48d in the pipe 45, which connects the container 44 to the still. The rising pressure in the pipe 45 then moves a piston 51 to open a valve 36 through which sludge collected on the inclined bottom 34a is discharged. At the same time the air in the container 44 causes a reverse flow of oil, which detaches solid matter from the filter elements. As shown oil is passed by a pump 2 through a heat-exchanger 4 to the lower compartment of a tank 6 in which it is mixed with a purifying agent supplied from an upper compartment. From the tank 6 the oil is drawn by a pump 32 through a pipe 31 and delivered into the filter 34 through a pipe 33. The filter is fitted with a float-operated air outlet valve 65. Each filter element 90 comprises a perforated cone or conical piston covered by a resilient multi-layer coating of wire net or gauze, and an outer layer of linen or paper. The pumps 2, 32. feeding blades 8 in the upper compartment of the tank 6 and mixing blades 20 in the lower compartment are all driven from an electric motor 21 by means of a yoke 19. The, drive includes telescoping rods 75, 76, the rod 75 being attached to a ring 86, sliding on the tubular rod 76, by means of a pin 87, which engages longitudinal slots in the rod 76. A helical spring 85 bears against the ring 86. The arrangement is such that the length of the combined rods 75. 76 and 'the strokes of the pumps become shorter with increase of load. In modified apparatus shown in Fig. 5, the valve 48d in the pipe 45 is closed at intervals in accordance with the amount of oil supplied to the filter by a cam 77 on the shaft 11 of the blades 8. The valve is reopened by a rod 79, the opposite end of which is operated by the lever of the sludge-outlet valve 36..
Patent GB-156960-A (GB)
Title: Improvements in aeroplane landing gear capable of being driven
IPC: B64C25/38
Filed: 1919-11-11
Abstract: 156,960. Caterpillar Tractors, Ltd., (Holt Manufacturing Co.). Nov. 11, 1919. Land wheels, runners, and skids.-Flexible belts 15, preferably of woven canvas or steel wire, pass round ground wheels 10, pulleys 11, which may be driving-pulleys, and jockey wheels 12, the portions between the wheels 10 and 12 forming supporting surfaces for the aeroplane on the ground. The driving-gear may comprise a countershaft 18, driven from the engine 16 by friction cones 19 which can be disengaged by a lever 20, a pulley 21 on the countershaft being connected by a belt 22 to a pulley 23 on the axle of the driving pulleys 11. The driving-pulleys 11 are connected to their axle by a ratchet mechanism so that when manoeuvring the aeroplane on the ground, one may be driven while the other is idle. The usual type of shockabsorber may be provided between the axles 13 and the frame 14. According to the Provisional Specification, the frame 14 mav be raised or collapsed when the machine is in flight.
Patent GB-1349926-A (GB)
Title: Control devices more especially for the sliding roof of a vehicle
IPC: B60J7/057
Filed: 1972-06-15
Abstract: 1349926 Vehicle sliding roofs W BAIER W BAIER L SCHOBER and E SCHLUMPRECHT 15 June 1972 [27 July 1971] 28023/72 Heading B7B [Also in Division E2] A device for controlling movement of a slidable roof panel 10, of a vehicle by means of a driving cable comprises a catch member and an abutment for engagement therewith attachable to the roof panel and a fixed part of the vehicle respectively, release of the catch member from engagement with the abutment being effected by relative movement of the catch member and abutment first in one direction and thereafter in the opposite direction by the driving cable. The catch comprises a hook 8 pivotally mounted by pins 6 and 7 movable in slots 4 and 5 in the sides of a U-shaped frame 1. Springs 17 and 19 engage adjacent sides of the hook. The frame 1 is connected by a slide 12 to the cable 15 movable in either direction by a handle and by a pivoted link 11 to the roof panel 10. To close the panel the cable is actuated to translate the frame so that the hook 8 engages the abutment, a pin 9, Figs. 1 and 11. The cable is further actuated to cause the pin to move along the slots and the hook to tilt, Fig. 4, the spring 17 then restores the hook to the horizontal position. The cable is moved a short distance in the opposite direction whereby the hook disengages the pin and the hook pivots downwardly, Fig. 5. The cable is then actuated in the first direction to pivot the roof panel outwardly, Fig. 12, when the cable is actuated in the opposite direction the pin 9 strikes an abutment on the hook and restores it to its position shown in Fig. 1, and the roof panel is moved to the open position, Fig. 10. The catch may comprise two hooks 22, 23, Fig. 8, with a slot 26 for a pin 24 on the frame and having a single spring 27. Alternatively, two frames 1 with hooks 8 may be combined and mounted in opposed relationship.
Patent GB-1355087-A (GB)
Title: Pouring method and nozzle construction
IPC: B22D11/06
Filed: 1971-06-15
Abstract: 1355087 Continuous casting USS ENGS & CONSULTANTS Inc 15 June 1971 [30 June 1970] 28044/71 Heading B3F [Also in Division F4]  A nozzle for a tundish used with a slab casting mould or a belt-type continuous casting machine comprises a cup-shaped refractory body 13 with a circular pouring opening 15, diametrically opposed raised portions 16 and lower portions 17 in the bottom wall defining said opening 15 and an elongated recess 18 in the lower surface of said bottom wall. This nozzle construction produces a thin fan-shaped stream of metal, which is disposed symmetrically of the mould opening.
Patent GB-197635-A (GB)
Title: Improved padding for use in making bed coverings and other articles
IPC: A47G9/02
Filed: 1922-10-16
Abstract: 197,635. Cooper, G. W. May 13, 1922, [Convention date]. Wadding; counterpanes and quilts.-Padding, packing or stuffing for bed coverings, dressing gowns, waistcoats, upholstery, &c. is made from coarse wool by first subjecting it to scouring, drying, teasing, and cutting operations. The wool is then spread over a thin sheet of butter cloth or mutton cloth &c. and is stitched loosely thereon. It is then more securely held by sewing to the cloth a number of tapes in parallel lines above the wool, and cross stitching between the tapes. The wool-covered sheet is then cut to the required shape for incorporation in the bed covering &c.
Patent GB-503865-A (GB)
Title: Improvements in and relating to power presses
IPC: B21D45/00
Filed: 1937-10-15
Abstract: 503,865. Shearing; stamping. BRITISH THOMSON-HOUSTON CO., Ltd., and STOODLEY, C. W. C. Oct. 15, 1937, No. 28144. [Class 83 (iv)] In a punching or drawing press a sheet is moved between the tools during the upstroke of the ram and workpieces, ejected from the upper tool, are caught upon the sheet and removed from the machine. A,carriage 14 is reciprocated by a lever 11 from the ram 1. A carriage 17 is guided on a bar 15 and is secured to the end of a sheet 20 on a pulley 21. On the upstroke of the ram the carriage 14 is moved to the left and engages a detent on the carriage to move it to the left and pull the sheet between the tools. The ejected workpiece falls upon the sheet and the carriage 17 is freed by a fixed cam 24 engaging the detent. Spring or other means withdraw the sheet and the workpiece is discharged by gravity, air blast or other means.