baber/WOPTO huggingface dataset:
Patent GB-1102888-A (GB)
Title: Improvements in hand-applied rotary-impact tools driven by an electric motor
IPC: B25D15/02
Filed: 1965-06-30
Abstract: 1,102,888. Impact tools. ROBERT BOSCH G.m.b.H. 30 June, 1965 [1 July, 1964], No. 27624/65. Headings B3C and B3N. [Also in Division B4] A hand-held rotary impact tool such as for hammering or chiselling, comprises a hammer member 17 rotatable with and axially movable on a shaft 14 driven by an electric motor, the hammer being provided with abutments 25, 26 adapted to strike the tool bit 29 after the hammer has been axially moved via a ball-andinclined groove connection 20, 22 against the action of a spring 18 and then suddenly released. The hammer 17 is provided with a pair of abutments which coact with a further pair of abutments 26, 27, Fig. 2 (not shown), on a coupling member 16, the latter abutments being arranged to transmit the hammer blow to the tool bit 29. In operation, when the tool bit is pressed against a workpiece so that its shank is in the position shown, the abutment 27 contacts the shank and thereby causes the abutments 24, 25 to ride up aganst the pressure of the spring until they disengage from the abutments 26, 27 and are then driven down rapidly in an impact stroke. A rubber buffer 34 is arranged to co-operate with a flange 32 on the tool bit ; the latter is guided for longitudinal movement only by means of a pin-andslot device 36, 37. In a modification the coupling member may be formed as a chuck in order to hold a screw-driving tool. Mechanism may be provided for rotating the tool bit in addition to the vibratory movement so that it may be used for drilling.
Patent GB-440675-A (GB)
Title: Improvements in paper maker's dryer felts
Filed: 1934-09-27
Abstract: 440,675. Dryer felts of paper-machines. HINDLE, T., Thornlea, Beardwood Brow, Blackburn, and LORD, S., Brooklands, Preston Old Road, Cherry Tree, Lancashire. Sept. 27, 1934, No. 27688. [Class 96] The seam of a dryer felt of a paper-machine is formed by folding each end back and securing it, e.g. by lines of stitches a<1>, slotting the loops a thus formed, at a<2> to accommodate links C which couple rods B inserted in the loops of the felt. The links C, which should not be as thick as the felt, may be as shown, and cut from a tube, case, or machined from a bar, or may have an eye at one end and a hook at the other, or a hook at each end. The rods B may be looped at their ends and sewn, or they may be shorter than the width of the felt, and one or more fasteners as described in Specification 413,847 used near the edges of the felt.
Patent GB-173328-A (GB)
Title: Improvements in or relating to railway signalling apparatus
IPC: B61L3/04
Filed: 1920-09-30
Abstract: 173,328. Smith, E., and Stubley, W. Sept. 30, 1920. Track apparatus actuating signals on and other than on trains and for stopping trains; lamp signals.-Slides fitted with coloured glasses are moved in front of a lamp and an electric alarm on the train is sounded and the brake and throttle levers are operated by engagement of a lever on the train with a pivoted arm carried either on the signal post or on an auxiliary post. Fig. 2 shows an auxiliary post carrying an arm C engaging one of the two arms G<1>, G<2> according to the position of the signal and an arm engaging the arm M on the train if the signal is at ' danger.' 'The arm C is swung by contact with the arms G', G<2> so as to close at contacts T<1>, T<2> a circuit over the wires R to the cabin to indicate the passage of the train. The levers G<1>, G<2> are each linked to a separate slide E having a clear central panel and red or green outer panels which are moved to the front of the lamp F on engagement of the levers G', G<2>, C. Each slide is held by a manually released detent after operation and is replaced on release by springs K. Contact springs I close a bell circuit while either slide is operated. The lever M removes a detent from a spring- operated sliding bar which closes the throttle lever and opens the brake valve.
Patent GB-233000-A (GB)
Title: Process of producing plate glass
IPC: C03B15/02
Filed: 1923-11-05
Abstract: 233,000. Golby, F. W., (Libbey-Owens Sheet Glass Co.). Nov. 5, 1923. Forming plate glass.-A method of producing polished plate glass consists in drawing sheet glass. continuously from a tank furnace, cutting the continuous strip into separate sheets, and then grinding and polishing the surface of the separate sheets. The glass is produced in a continuous strip 3 by the process of drawing in which the strip is drawn vertically upwards from a draw-pot 1, and after passing around a bending-roller 5 travels in a horizontal direction through a lehr 7. The strip, as it emerges from the lehr, is cut into separate sheets 8 which are carried by conveyers 11 to the bevelling room 12 where the edges are bevelled to prevent subsequent chipping. The bevelled sheets are conveyed to any one of a series of grinding machines, which are of the kind described in Specification 228,609, [Class 60, Grinding or abrading &c.], where a light surface grinding is given to the sheets. The sheets after being ground on both surfaces are conveyed to polishing machines 24, also of the kind described in the Specification referred to.
Patent GB-982500-A (GB)
Title: Improvements in dyeing with acid leuco vat dyes
Inventor: HINCKLEY ALFRED ARMOND
IPC: D06P1/22
Filed: 1963-07-12
Abstract: Vat dyes are reduced in an aqueous bath to their lenco form which is converted to the acid lenco form which is then stabilized in the presence of an alkali metal hydrosulphite by using an amine borane compound.  This bath is used to impregnate the materials and the dyeing is completed by subsequent oxidation. The amine borane compounds used are adducts of primary, secondary or tertiary amines with borane, several of these compounds are specified.  Natural or synthetic fibres may be dyed and carriers and dispersing agents are preferably added.  Fibres specified include, nylon, wool, cotton, polyester silk and polyacrylonitrile fibres.  In an example leuco acid baths containing the vat dye, 2-6-lutidine borane, and sodium hydrosulphite were used; optionally benzyl alcohol was added as carrier.  The stability of the vat was improved by addition of the 2-6-lutidine borane, and further improved by addition of the benzyl alcohol.
Patent GB-469162-A (GB)
Title: Process of producing easily crushed anhydrous borax
IPC: C01B35/12
Filed: 1936-10-13
Abstract: Readily crushed anhydrous borax is obtained by quenching and rolling out into sheets liquid borax glass by pouring it on to pairs of cooled rotating rollers.  Several pairs of cooled rollers disposed one behind the other may be employed, and the rollers of each pair may be driven at different speeds.  Crushing of the sheets may be effected on grooved or spiked rollers. Specification 385,217 is referred to.
Patent GB-755804-A (GB)
Title: Improvements in or relating to methods of producing getters
IPC: H01J7/18
Filed: 1954-09-27
Abstract: 755,804. Discharge apparatus. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Sept. 27, 1954 [Sept. 30, 1953], No. 27818/54. Class 39 (1). In a method of producing a non-vaporizing getter in which the gas-absorbing constituent consists substantially of one or more of the refractory metals capable of forming non- gaseous hydrides (e.g. zirconium, thorium, titanium, tantalum, niobium, and vanadium), said metal is powdered, and mixed and compressed with an additional constituent consisting of aluminium, silicon, or beryllium, or a powdered alloy of one or more of these with cerium, lanthanum, or misch metal; the compressed mass is then mounted in a vacuum vessel and activated by heating. If zirconium is used as a starting material, it may be mixed with tungsten to prevent it initially sintering to compactness. The zirconium may be introduced in the form of the hydride. Titanium (if not initially present), or iron, or nickel, may also be added to bind the additional metal. Examples are given, specifying suitable proportions, of Th+Ce+A1; Zr+A1; Th+Ce+Si; Zr(hydride)+Ti+Al; Zr+Al+Ni(+Ti); Zr+ W+Al+Ni; Zr+Ta+Al+Ni. Other mixtures mentioned are Th+Al+Ni; Ti+Al+Ni; Zr+Al+Fe; Zr+W+Al+Ti.
Patent GB-1254780-A (GB)
Title: Production of polyethylene 1,2-diphenoxy-ethane-4,4'-dicarboxylate
IPC: C08G63/672
Filed: 1969-06-02
Abstract: 1,254,780. Polyethylene 1,2 - diphenoxyethane 4,41 - dicarboxylate. ASAHI KASEI KOGYO K.K. 2 June, 1969 [1 June, 1968], No. 27837/69. Heading C3R. Polyethylene 1,2 - diphenoxyethane - 4,4<SP>1</SP>- dicarboxylate is prepared by reacting purified 1,2 - hia[p - carbomethoxy phenoxy)ethane having an acid value of 0À03 or less with ethylene glycol using a manganous compound as ester interchange catalyst, adding a phosphorus compound to the system to destroy the catalytic activity of the manganous compound, adjusting the concentration of free ethylene glycol in the reaction system to 40% by wt. or less of the total system, and polycondensing using amorphous germanium dioxide as polycondensation catalyst. Preferred ester interchange catalysts are manganous carbonate, carboxylates, alkoxides, glycoloxides and hydroxide. The phosphorus compound may be phosphoric acid, phosphorous acid, hypophosphorous acid or a phosphorus compound convertible to one of these, such as triphenyl phosphite, and may be employed in an amount of 300-500 mole per cent based on the amount of the manganese compound.
Patent GB-1100355-A (GB)
Title: A shaft-to-hub coupling
IPC: F16D1/08
Filed: 1966-06-22
Abstract: 1,100,355. Mounting hubs on shafts. WILLIAMS RESEARCH CORPORATION. 22 June, 1966 [23 June, 1965], No. 27890/66. Heading F2U. [Also in Division F4] The hub 16 of a rotary matrix regenerator of the glass ceramic type used as heat-exchangers in gas turbines, is mounted on a square or hexagonal shaft by a coupling permitting universal and axial movement and comprising a sleeve 19 receiving the shaft and carrying metal spring-finger units 21, each unit comprising a base 22 and a number of arcuate fingers (25), Fig. 4 (not shown), extending side-by-side therefrom, and received in arcuate recesses 28 in the hub 16. The hub may slide axially on the fingers.
Patent GB-769717-A (GB)
Title: Improvements relating to belt buckles
Inventor: WOOD HERBERT HOWARD
IPC: A44B11/24
Filed: 1954-09-29
Abstract: 769,717. Clamp fastenings. WALKER, Ltd., T. July 27, 1955 [Sept. 29, 1954], No. 28051/54. Class 44. [Also in Group VII] A belt buckle of the kind. having a lever-grip device for securing it to the normally fixed end of a belt, comprises a main buckle frame 1 with the prong-carrying end 1a secured rigidly to one end of an extension plate 4 which has its opposite end 9 bent rearwardly to form a gripping-edge in combination with a rear clamping-plate 11 provided with a pair of forwardly extending lugs 13 each of which has an aperture 14 to receive a trunnion 8, Fig. 1 (not shown), extending laterally from the end portion 9 of the extension plate 4, so that when the clamping-plate 11 and extension plate 4 are swung outwardly relative to one another the end 16 of a belt can be either inserted between, or removed from, the co-operating gripping parts 9 and 11. The gripping edge 9 is preferably toothed or serrated to engage with the fixed end of a belt. In the example the end of the clamping-plate 11 remote from the buckle frame 1 carries a fixed, forwardly-extending, keeper-loop 20 through which the fixed end 16 of the belt is passed, and which can also receive the free end of the belt extending from the buckle frame. Specification 369,362 is referred to.
Patent GB-644296-A (GB)
Title: Improvements in and relating to vibratory converters
IPC: H02M1/28
Filed: 1946-09-19
Abstract: 644,296. Electromagnetic interrupters. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 19, 1946, No. 28141. Convention date, Sept. 21, 1945. [Class 38(v)] In a vibratory converter with sliding contacts the armature 13 is alternately attracted by two coils 14, 15 and is mounted on two springs 2 shaped as in Fig. 4, so that it has a natural period of oscillation and moves substantially rectilinearly. The armature 13 may be a steel tube mounted on an aluminium tube 9 which carries two contact rings 11, 12 insulated from each other and adapted to engage slidably one or more contacts 18. With the parts at rest in the central position shown a circuit is completed through coil 14 and starting contacts 19 causing the armature and contacts 12, 11 to move to the left (Figs. 1 and 6) till 11 engages 18 and short circuits the coil 14. Momentum carries armature a little further and it then returns, momentum carrying it beyond the central position even though coil 14 has been re-energized and opening contacts 19, so de-energizing coil 14 and closing contacts 20 so energizing coil 15 which accelerates movement till coil 15 is itself short-circuited by engagement of contacts 12 and 18.
Patent GB-586305-A (GB)
Title: A method of building an object with an accurate planar outline
IPC: B25H1/00
Filed: 1945-10-25
Abstract: 586,305. Work benches &c. ARMSTRONG WHITWORTH AIRCRAFT, Ltd., SIR W. G., and JENKIN, A. G. H. Oct. 25, 1945, No. 28153. [Class 61 (ii)] An aircraft rib &c. is built up on a rigid flat template 25 having the correct outline of the object and provided with markings for holes, rivets, screws &c. if necessary, which template is located on a setting-up table 12 provided with intersecting undercut grooves 17, 18 to receive bolts for clamping dogs 23 with operative upright faces arranged to bear upon the outline of the template, whereby the object may be built up accurately in the space outlined by the dogs.
Patent GB-432075-A (GB)
Title: Method of and means for the economic production of milk powder from whole milk
IPC: A23C1/04
Filed: 1934-10-02
Abstract: <PICT:0432075/III/1> Pre-evaporated milk from a vacuum concentrating unit B is sprayed through a nozzle 15, together with warm dry hydrogen from a generating system A supplied to an annular ring of nozzles 18, into a drying chamber 16 wherein dried powdered milk is deposited, the temperature of the milk in its successive treatments being that of normal fresh milk.  The pre-evaporating unit comprises an inclined evaporator 5 with its heating tubes communicating with an ebullition chamber 6 from which the vapours are removed to a low pressure vapour chamber 21 by a compressor 23 for recirculation, together with injected water from a nozzle 25, to the heating spaces of the evaporator.  The hydrogen generating system comprises a suction gas producer 27, dust-extractor 28, cooling tube 29, a blower 31, hydrogen extraction chamber 33, condenser 41, booster 43, gasometer 44, and a heater 46.  Steam from a boiler 26, superheated in a coil 35, is supplied to the upper part of the extraction chamber 33, which is packed with iron or steel shavings or borings supported upon a perforated plate 37, and by diffusion strips a part of the hydrogen from the producer gas flowing beneath the plate.  The hydrogen is dried in the condenser 41 and raised to the desired temperature by the heater 46.  The moist gas from the drying chamber flows to a cyclone dust collector 48 from which milk particles are returned to the chamber and the hydrogen is returned to the gasometer through a condenser 49.  The dried milk is collected and packed in a chamber 20 which is filled with hydrogen gas.
Patent GB-216791-A (GB)
Title: A fluid pressure device for the operation and control of valve levers and the like
IPC: F16K31/143
Filed: 1923-11-09
Abstract: 216,791. Davenport, T. W., and Foster, F. Nov. 9, 1923. No Patent granted (Sealing fee not paid). Fluid-actuated valves -The control lever M which actuates anv valve &c. through a rod S, is provided with an extension N which is normally situated between the rams C, D. These rams are provided with stops E, F, and the cylinders A, B are supplied with pressure fluid from any source through a pipe J. When the valve is actuated in one direction or the other, the corresponding ram C or D is forced into its cylinder and serves to return the valve to its normal position when the pressure on the lever M is withdrawn. Specification 16094/11, [Class 78 (i), Conveyers &c.], is referred to.
Patent GB-1179039-A (GB)
Title: A Device for Character Width Displacement in Photographic Composing Apparatus
Inventor: GULDENPFENNIG HANS
IPC: B41B21/16
Filed: 1967-06-20
Abstract: 1,179,039. Photographic composing apparatus. H. BERTHOLD MESSINGLINIENFABRIK UND SCHRIFTGIESSEREI A.G. 20 June, 1967, No. 28403/67. Heading B6W. Photographic composing apparatus comprises a rotatable mirror between the characters and the photographic plate for character width displacement. The Figure illustrates apparatus in which characters 3 are illuminated through a condenser lens by light source 1; the optical axes 2 passes through an objective 5 to the mirror 7 arranged to rotate about a spindle 6. The carrier 9 of the photographic layer may be situated in a cylindrical bearer, the axis of rotation of the mirror coinciding with the axis of the bearer. Rotation of mirror 7 causes displacement of optical axis 2 laterally across the carrier 9.
Patent GB-874172-A (GB)
Title: Improvements relating to shuttering panels for casting concrete
Inventor: DOUGLAS JOHN ROBERT TOMKYS
IPC: E04G17/04
Filed: 1956-09-18
Abstract: 874,172. Shuttering for casting concrete. RAPID METAL DEVELOPMENTS Ltd. Dec. 12, 1957 [Sept. 18, 1956], No. 28447/56. Class 20(2) A shuttering panel is of plywood 6 to the rear of which is secured a flange 13 of a metal frame having a flange 11 surrounding the perimeter of the plywood and a flange 8 having slots 10 for securing clamps. The frame may, as shown in Fig. 4 be of pressed metal. The flange 13 may be formed of lugs pressed out of the flange 8. Specifications 682,870 and 682,916 are referred to.
Patent GB-1207552-A (GB)
Title: Method of and means for embossment and packaging of cold butter
Inventor: PETERS LEO
IPC: B65B25/06
Filed: 1968-06-14
Abstract: 1,207,552. Compressing butter pats. L. PETERS. 14 June, 1968, No. 28477/68. Heading B5A. [Also in Division B8] A flexible film, e.g. of polypropylene or p.v.c., is interposed between a blank of cold butter and a recessed die, having an engraved bottom surface, whereupon the butter and the film are pressed into the die to emboss the lower surface of the butter blank and to form the film into a skin-tight wrapper covering all but the upper surface of the embossed butter pat. As shown, a film 13 is interposed between two butter blanks 11 and a plurality of engraved moulding recesses 16, 17 separated by walls 20. A further film 12 is placed over the upper surface of the blanks 11. Prior to moulding, the films 12, 13 may be shaped to conform to the shape of the blanks so that air is not trapped between the films. A plunger 15 is lowered to form each blank into a number of separate embossed pats located between the deformed film 13 and upper film 12, Fig. 3 (not shown). The films are not welded together and the package may be opened by laying it with film 13 uppermost, and peeling off film 13 to leave individual pats on film 12. In a second embodiment, Figs. 7-12 (not shown), upper film 12 is dispensed with, lower film 13 is drawn by suction into the engraved recesses, and individual cylindrical butter blanks are moulded one into each recess by separate plungers.
Patent GB-1475515-A (GB)
Title: Switching circuits comprising semi-conductor crosspoint elements
IPC: H01L27/06
Filed: 1974-06-27
Abstract: 1475515 Integrated circuits SIEMENS AG 27 June 1974 [29 June 1973 (2)] 28503/74 Heading H1K In an integrated circuit switching matrix each semi-conductor two wire erosspointissymmetrical in relation to a common control input for the crosspoint switching elements. In one embodiment shown the crosspoint connects an input pair of conductors a, b to an output pair x, y extending in a direction at right angles thereto. The conductors are semiconductor layers each with a metal coating on one face. The control input sab for a common base layer V extends in the same direction as and mid-way berween one conductor pair. Insulating layers I at non- crosspoint conductor crossings provide capacitive couplings to eliminate capacitive noise. The base layer is controlled via a four layer bistable diode Dab and the base layer has a high resistance to prevent D.C. coupling of the wires a, b. A second embodiment with the conductors a, b and x, y extending in the same direction is also described. The crosspoints could be thyristors.
Patent GB-819669-A (GB)
Title: Improvements in or relating to processes for vulcanizing natural and synthetic rubber latices
IPC: C08L21/02
Filed: 1956-09-18
Abstract: Natural or synthetic rubber latex is vulcanized by heating, to a temperature of 200 DEG  to 375 DEG  F., the latex in which has been incorporated 0.1 to 10 per cent by weight of the latex solids of an organic peroxide compound having the formula <FORM:0819669/IV (a)/1> wherein R1 is aryl; R2, R3, R4 and R5 are hydrogen or alkyl groups of less than 4 carbon atoms; R6 is aryl, hydrogen, or an alkyl group of less than 4 carbon atoms; R7 and R8 are saturated or aromatic unsaturated hydrocarbon radicals; R9 is a carenyl, p-menthyl, or pinanyl radical; and R10 is an organic radical linked to the adjacent oxygen atom through a tertiary carbon atom. Several peroxides are specified, the preferred compounds of the first formula being bis-(a ,a -dimethylbenzyl), bis-(a ,a -dimethyl - p - methylbenzyl), and bis-(a ,a  - dimethyl-p-isopropyl) peroxides.  The peroxide of the second formula may be a reaction product of a vinyl ether of the formula CH2CHOR, and a hydroperoxide of the formula R8OOH. The reaction products specified include those of dihydroterpinyl vinyl ether and cumene hydroperoxide and of isobutyl vinyl ether and p-menthane hydroperoxide.  The peroxides of the third formula may be prepared by condensing an alcohol of the formula <FORM:0819669/IV (a)/2> with p-menthane, pinane, or carene hydroperoxide, or by reacting a dihydroterpineol with a hydroperoxide of the formula <FORM:0819669/IV (a)/3> The specified hydroperoxides of the fourth formula include cumene, p-menthane, and p-cymene hydroperoxides. Prior to or after vulcanization there is preferably added to the latex an antioxidant of the formula <FORM:0819669/IV (a)/4> wherein R is an alkyl group of 1 to 3 carbon atoms and R1 is a tertiary alkyl group of from 4 to 8 carbon atoms.  The synthetic rubber latex may be of a polymer of butadiene or a derivative thereof, e.g. methyl or dimethyl butadiene, pentadiene, or chloroprene, or a copolymer of the conjugated diolefin with acetylene, acrylonitrile, isobutylene, &c. In Examples (1) and (2) sufficient of an emulsion containing bis-(a ,a -dimethylbenzyl) peroxide is added to natural rubber latex to provide various amounts from 0.5 to 1.5 parts by weight of peroxide per 100 parts of rubber, and the mixture is heated in a sealed pressure vessel at 300 DEG  F. for one hour.  Several other examples are described illustrating the vulcanization of natural rubber, butadiene-acrylonitrile, and butadiene - styrene latices. Specifications 754,514, 781,040 and 787,221 are referred to.
Patent GB-171025-A (GB)
Title: Improvements in vehicle wheel tires
IPC: B60B9/22
Filed: 1920-10-09
Abstract: 171,025. Harrigan, J. E. Oct. 9, 1920. Spring wheels.-Twin pneumatic tyres 22, 23 are enclosed by a metal hoop 24 fitted with a solid rubber tread 27. The tyres are fitted in rims 18, 19 carried by a ring 14 which is detachably secured against an off-set flange 12 on the fixed rim 11 by a wedge-ring 32 held by clamps 33 and bolts 34. The rings 24, 14 are further connected by springs 29, chains, or other yielding-members.