baber/WOPTO huggingface dataset:
Patent GB-1135696-A (GB)
Title: Improved synchronous dynamo-electric machines
Inventor: DROSTE WERNER
IPC: H02P9/30
Filed: 1967-07-14
Abstract: 1,135,696. Synchronous dynamo-electric machines. LICENTIA PATENT - VERWALTUNGS G.m.b.H. 14 July, 1967, No. 32599/67. Heading H2A. A synchronous dynamo-electric machine, e.g. generator, has its field winding 12 supplied by parallel connected rectifiers 17, 18 of which the D.C. voltage of 17 is higher than that of 18 and whose respective A.C. sides are connected to a main supply or consuming circuit and to the secondary winding 19 of a transformer 21 whose primary winding 23 carries a current depending on the current flow in the machine, and a pulsing network 15 inserted between the rectifiers and the field winding is controlled in dependence upon the machine terminal voltage. The rectifier 17 alone normally supplies the field winding but should its circuit have an earth fault the rectifier 18 becomes operative to maintain the excitation. By comparing a reference voltage u r  with the terminal voltage u a  a regulator 27 produces a control signal which is fed to the network 15 which comprises two semi-conductor controlled rectifiers, quenching capacitors and a diode 28 in parallel with the field winding. As shown, there are two or more machines in parallel, and in Fig. 2 a common transformer (32) is substituted. The transformer core may be airgapped to avoid saturation.
Patent GB-193550-A (GB)
Title: Improvements in locking and tensioning mechanism for loose leaf binders and the like
IPC: B42F13/04
Filed: 1921-12-06
Abstract: 193,550. Mann, A. Dec. 6, 1921. Flexible-band files; locks.-In a locking and tensioning mechanism for a loose-leaf binder of the thong type, the thongs a are attached to a cross-bar b to which is secured a casing c, slidable between a rack e and guide bar f fixed to the cover, and containing mechanism for locking the bar b in any position or for moving it to tighten the thongs. This mechanism consists of a pinion d engaging the rack and a spring-pressed pawl bar g, arranged so that the pinion can only be turned to tension the thongs, the pinion being released by the insertion of a key x which engages a projection g<2> on the bar g. In a modification two racks are used in conjunction with two pinions locked by a bar or bars g. A key-operated cam may be provided to engage with the projection g<2> to release the pinion, and in this construction the rack bars are grooved or rebated to form guides for projecting parts on the lock casing. Wards i may be attached to the casing to allow operation by one clerk's key only. Additional means whereby the device may be completely locked consists of a bar i<3>, Fig. 7, which, when moved to the right by an auditor's key, forces a metal piece i<1>, seated in a fixed block i<2>, against the projection g<2> on the bar g. The bar i<3> is held in its extreme positions by a ball j spring- pressed into one of two recesses j<2> in the bar. Specifications 193,218 and 193,531 are referred to.
Patent GB-1207303-A (GB)
Title: Improvements relating to solid-insulated electrical components and their manufacture
Inventor: LEGG DUNCAN
IPC: H01B3/28
Filed: 1966-07-21
Abstract: 1,207,303. Insulation. A. REYROLLE & CO. Ltd. 17 Oct., 1967 [21 July, 1966], No. 32754/66. Heading H1A. [Also in Division H2] A cable box, bus-bar unit or bushing has the space between electrical conductors 12, 15 and the casing 11, 11A filled with solidified cold-curing silicone rubber insulant. The conductor and casing surfaces may be painted with a silicone resin and/or treated chemically by immersion in acid to ensure adhesion of the silicone rubber. The rubber formulation may comprise a mixture of uncured silicone rubber, silicone fluid and a liquid catalyst and have a lower viscosity when being cast than the silicone rubber constituent alone. Particular pretreatment methods are described with respect to mild steel, copper, brass and aluminium surfaces.
Patent GB-448322-A (GB)
Title: Improvements in rolling pins made of china, glass, earthenware or wood, or any other material
IPC: A21C3/02
Filed: 1935-11-26
Abstract: A rolling-pin of china, earthenware, glass, wood, or other material, is provided with serrations, either longitudinal or slightly oblique, to ensure complete aeration of the paste.  The tops of the serrations are in the form of blunt teeth with rounded or bevelled corners, the sides of the serrations being sloped to produce grooves which are wider at the tops than at the bottoms. The pin is arranged to rotate on axial supporting handles.
Patent GB-498711-A (GB)
Title: Improvements relating to ironing machines of the decoudun type
Filed: 1937-11-27
Abstract: 498,711. Ironing-machines. TULLIS, Ltd., D. & J., and WILSON, R. Nov. 27, 1937, No. 32771. [Class 138 (ii)] In a two-roller decoudun ironing-machine, the bed is made up of a central relatively fixed portion 3 arranged between the rollers and having two concave portions 3a, 3b, one concavity being associated with each roller. Two relatively movable portions 4, 5 are arranged, one on each side of the central portion and each is provided with a concavity such that each roller is embraced for more than half its peripheral surface. The portions 4, 5 may be moved to and from the central portion either manually or by power.
Patent GB-189800-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02M1/00
Filed: 1922-12-01
Abstract: 189,800. Sonderegger, A. Dec. 2, 1921, [Convention date]. Spray carburettors -Either light fuel from the compartment 5 of the fuel tank, or a mixture of light and heavy fuel from the compartment 4, according to the position of the three-way cock 6, is supplied to the carburetting apparatus 7, the jet of which is adjustable and may be interconnected with the cock 6 to compensate automatically for the change of fuel. The light fuel may be petrol and it may be used with an equal quantity of naphtha or other raw oil.. Cylinders receiving liquid fuel.-Plates 2 for vaporizing the fuel are provided in the combustion space.
Patent GB-392960-A (GB)
Title: Improved feeding and aligning mechanism for prepared forms in manifold page printing apparatus
IPC: B41J15/24
Filed: 1931-11-27
Abstract: 392,960. Feeding webs. CREED & CO., Ltd., Telegraph House, Croydon.-(Teletype Corporation ; 1400, Wrightwood Avenue, Chicago, U.S.A.) Nov. 27, 1931, No. 32917. [Classes 100 (i) and 100 (iv).] In a mechanism for aligning superposed perforated forms and feeding them over a rotatable platen, rotary aligning means are provided to engage the perforations before the webs reach the platen, and the platen bears more widely spaced pins to align and feed the forms. Web forms A, B pass over aligning wheels 13, bearing pins 15, and under and round a platen 10. A hinged guide member 18<1> presses the webs down over the pins. Pins 17 are mounted on rings 16 on the platen 10, the rings being adjustable and clamped by screws 20, and the webs are pressed down about the pin 17 by guides 22. A cutting member 25 is adjustably mounted above the platen. The webs may be drawn from the wheels 13 by the rotation of the platen, as shown, or the wheels may be geared to the platen, the jogging motion of the gears assisting the correct setting of the webs on the pins.
Patent GB-387454-A (GB)
Title: Improvements in or relating to vulcanization of rubber or the like
IPC: C08K5/21
Filed: 1931-11-27
Abstract: In order to avoid prevulcanization, or "scorch," accelerators of the "ultra" or "semiultra" type, are used in conjunction with material which, at vulcanizing temperature, decomposes to give ammonia or aliphatic amines which aid acceleration.  Such material comprises compounds of the type <FORM:0387454/V/1> where R1 is hydrogen or aliphatic (including aralkyl) hydrocarbon radical, R2 R3 are hydrogen or similar or dissimilar aliphatic or aromatic hydrocarbon radicals, and include urea, mono, and disubstituted ureas.  Examples of acidic derivatives are complex salts of urea and its homologues with zinc chloride or amide, organic or inorganic acid salts such as urea oxalate, urea hydrochloride, &c.  The material may be incorporated in a "master batch" or mixed with the accelerator, either as a solution or as a dispersion or paste in oil or in latex or as a solid.  In examples, urea is used in conjunction with (1) mercaptobenzothiazole, (2) tetramethylthiuram monosulphide, (3) 2.4-dinitrophenyldimethyl dithiocarbamate, (4) butyraldehyde-aniline condensation product, (5) 2.4-dinitrophenyl benzothiazyl sulphide.  Numerous examples of accelerators of the "ultra" and "semiultra" type are given.
Patent GB-1083039-A (GB)
Title: Improvements in or relating to apparatus for use in a printing, duplicating or like machine
Inventor: TATHAM HARRY
IPC: B41L39/00
Filed: 1963-08-20
Abstract: 1,083,039. Rotary duplicating machines. ORMIG ORGANISATIONS-MITTEL G.mb.H. Oct. 12, 1964 [Aug. 20, 1963; Feb. 17,1964], Nos. 32967/63 and 6572/64. Heading B6C. A rotary duplicating machine, Fig. 1, suitable for printing selected lines or sections from a master sheet carried by a printing cylinder 11 on to copy sheets fed from a feed table 15 to the line of printing 16 comprises a counterpressure or impression assembly 17 provided with a plurality of teeth 33-38 adapted to co-operate selectively with the teeth of a gearwheel 39, arranged. to drive the cylinder 11, so that the pressure bar associated with the tooth engaged by the wheel 39 is rotated through the line 16 at the same peripheral speed as the cylinder 11. The wheel 39 has a tooth corresponding to each possible line of printing on the master sheet. In the embodiment of Fig. 1 the teeth 33-35 are associated with pressure bars 21-23 in an assembly 18 provided with means to initiate its movement, said means including a stepping mechanism 42. controlled by a solenoid 52. The teeth 36-38 are associated with pressure bars 26-28 in an assembly 19, the bars of which co-operate with the master alternately with those of the assembly 18. The assembly 19 is-similarly provided with a stepping mechanism 43 and a solenoid 49, both said solenoids being- energized according to the selected circuit of a rotary switch, Fig. 5 (not shown). In the embodiment of Fig. 12 (not shown) the counter-pressure assembly including the two sets of pressure bars is eccentrically mounted and is pivoted into a tooth-engagement printing position by means of a linkage acting on eccentric pins and actuated by solenoid or cam means. In a further embodiment, Fig. 7, four separate pressure bars 101-104 are mounted on the radial extensions of ferromagnetic flanges 106-109, and two permanently magnetized discs 112, 113 are secured to a sleeve 111 which is rotated by a belt which also drives the printing cylinder. Eachbar is provided with a tooth, Fig. 6 (not shown), arranged to cooperate with the teeth on a wheel mounted coaxially with the printing cylinder. The bars are held against rotation, caused by eddy currents, by a pawl, Fig. 6 (not shown), which is released on energization of a solenoid controlled by a switch arrangement according to the setting of selected switches. At the printing position the bars are forced into cooperation with the cylinder by a rubber counterpressure roller 123. The drive element of each pressure bar may be in the form of a roller instead of a tooth.
Patent GB-959838-A (GB)
Title: Improvements in or relating to accelerators for dry pipe sprinkler systems
Inventor: AULT WAYNE EDWARD
IPC: A62C35/60
Filed: 1960-09-26
Abstract: 959,838. Sprinkler accelerators. AUTOMATIC SPRINKLER CORPORATION OF AMERICA. Sept. 26. 1960, No. 32973/60. Heading A5A. A dry pipe accelerator 10, Fig. 5, contains a pressure translator 11 provided with spring- biased bellow diaphragms 54, 59, Fig. 4, which are normally forced into the upper part of the translator by the air pressure in the sprinkler piping 5. On drop of hot air pressure, spring 67 urges the diaphragms down to the position shown in Fig. 4 and in so doing causes valve 12 to open and, via pipes 14 and 23, provides equalization of air pressure on both sides of the clapper 8 of the dry pipe sprinkler valve 6 which allows the fire-extinguishing fluid to open the clapper and enter the sprinkler piping. Valve 12 is caused to open by the downward movement of the diaphragms inducing a partial vacuum in the upper part of the translator which, via outlet 69 and pipe 15, actuates a diaphragm assembly to unlatch a sequence of levers and to rock stem 21 so as to open valve 12.
Patent GB-814742-A (GB)
Title: Improvements in or relating to conveyors for transporting granular or pulverulent materials
IPC: B65G53/00
Filed: 1955-11-18
Abstract: 814,742. Pneumatic conveyers. STURM, H. E. Nov. 18, 1955 [Nov. 20, 1954], No. 33080/55. Class 78 (1). In a conveyer of the kind in which material 12 is sucked into the upper part of a chamber 3 and discharged from the bottom through a rotary valve into a conveying line 13, the upper part of the chamber is connected by a pipe 2, dust separator 6 and pipe 7 to the suction side of a rotary compressor 1, and the conveying line is connected to the pressure side of the compressor. The end of the pipe 4 within the chamber is connected to a conical nozzle 14 which deflects the material away from the mouth 25 of the suction line 2. A filter 24 may be placed in the mouth to remove coarse dust particles and the mouth may open into a separator 23 for the finer particles.
Patent GB-173947-A (GB)
Title: Improvements relating to the axles of motor road vehicles
IPC: B60B35/02
Filed: 1920-11-25
Abstract: 173,947. Mitchell, F. J. Nov. 25, 1920. Axles and axle structures; retaining parts when failures occur.-In an axle assemblv of the type in which the wheel 6 runs on ball or roller bearings 5 on a sleeve extension 2 secured to the axle tube 1 and is secured to the driving-axle 4, means are provided for preventing the wheel from coming off should the axle break, such means comprising a retaining-ring 11 screwed on the sleeve and engaging the ball &c. race. The retaining ring is additionally secured by means of a spring ring 12 provided with a finger 12<a> projecting through the ring and into the sleeve. Outer and inner cheek plates 7, 8 are secured to the wheel, the inner plate having a sleeve 8a carrying the outer ball-races, and the outer plate being secured to the axle end by the usual cone 9, key 10, and axle-nut.
Patent GB-1088460-A (GB)
Title: Building structure
IPC: E04B1/19
Filed: 1966-07-25
Abstract: 1,088,460. Roof trusses BUTLER MANUFACTURING CO. July 25, 1966 [July 30, 1965], No. 33377/66. Heading E1K. A roof truss comprises a pair of parallel bottom chords 24, a number of spaced cross members 25 fixed to the chords and sets of four converging struts 26 forming pyramidal modules, bracket and spacer lugs 30 being secured to the outsides of the bott÷m chords. The truss is completed by a top-hat section top chord 28 bolted to plates at the apices of the pyramids The. chord memibers 24 are of channel section with an obtuse angled upper flange and the struts are of angle section such that the pyramid faces are uniplanar. The lugs 30 provide for lifting, non-jamming stacking and bolting adjacent trusses; the gap between the trusses being useable for ventilation. Strengthened joints are used for cantilever trusses and at junctions overlying supporting beams 20, to which the top chords are bolted.
Patent GB-468562-A (GB)
Title: Improvements in and relating to railway vehicles such as goods and mineral wagons
IPC: B61D7/18
Filed: 1935-12-02
Abstract: 468,562. Railway vehicles. BAILEY, D. G. Dec. 2, 1935, No. 33389. [Class 103 (iv)] A goods wagon is provided with sides which slope outwardly and are welded or riveted to the sole plate, the side door carrying brackets being attached directly to the sole plate. The sides 1 are inclined outwardly and may be (1) riveted or welded to the floor 2 by an inturned flange, or (2) overlap the floor 2 and be secured to the flat side of the sole plate 3 by rivets, or (3) abut the edge of the floor overlapping the sole plate and be secured by welding the abutting edges. The door 7 in the side is hinged from brackets 8 attached to the sole plate 3 and an end door 6 may be fitted in the space between the sides. Intermediate stanchions 5 and upper edge-angle 4 may be secured to the sides.
Patent GB-387797-A (GB)
Title: Improvements in advertising devices
IPC: G09F23/00
Filed: 1931-12-02
Abstract: 387,797. Changing signs. PALMER, W., 290, Links Road, London. Dec. 2, 1931, No. 33402. [Class 3 (i).] Optical-projection apparatus.-A cylinder 1 carrying one or more colour screens or transparencies 14 and rotated by convection or other air currents is combined with an optical projector and is controlled by an escapement to give it an intermittent motion. The escapement comprises a cam 24 pivoted at 21 and depressed in turn by a series of radial rods 16 fixed to the cylinder 1. When a rod 16 reaches the end of the cam 24 it abuts against a stop 25 and a gap 28 allows the escapement to rise, after which the rod 16 is free to pass away under the edge 30 of the stop 25. A balance weight 33 can be adjusted to determine the rate of rising of the escapement. Alternatively the escapement may be under the influence of an adjustable spring. An abutment 31 may be provided to limit the movement of the escapement. A stationary cylinder 5 having an orifice 10 opposite the projecting lenses 12 serves to support the lamp 8. The condenser may be omitted by providing a lamp having a frosted bulb. The projection may be on a screen 37 by reflection from mirrors 35, 36, or on a distant screen by opening a door 38 and removing the mirror 35.
Patent GB-1498555-A (GB)
Title: Production of powder paints
IPC: C09D5/46
Filed: 1976-08-12
Abstract: 1498555 Powder paints FORD MOTOR CO Ltd 12 Aug 1976 [25 Sept 1975] 33659/76 Heading C3B Powder paints are prepared by: (A) depositing on the surface of a stream of water in a depositing and extraction zone (1), a liquid dispersion of organic paint components (which may contain metallic and non-metallic flake pigments); the dispersion is in a water miscible solvent, having a surface tension of 20-40 dynes/cm and the dispersion contains 10-40% by wt. of paint components which will float together on and are less than 5% by wt. soluble in water; (B) maintaining the resultant floating deposit of paint in (1) for a time sufficient (i) to allow the dispersion to spread over the water surface, (ii) to extract at least 90% of the organic solvent from the dispersion, and (iii) to allow the dispersion to solidify to plate-like particles; (C) passing the plate-like particles into a collecting zone and comminuting to smaller particles; and (D) collecting the said particles. The flakes removed from the collection zone preferably have a thickness <15 Á. Examples relate to the treatment of paint dispersions comprising glycidyl (meth)acrylate copolymers cured with polycarboxylic compounds or polymers, pigments with aluminium flakes, copper flakes, stainless steel flakes together with non-metallic pigments.
Patent GB-521467-A (GB)
Title: Improvements in exercising stands for bicycles
IPC: A63B69/16
Filed: 1938-11-21
Abstract: 521,467. Exercising-apparatus. PEMBERTON, J..F. Nov. 21, 1938, No. 33760. [Class 132 (i)] An exercising stand for bicycles comprises a base A carrying members B that support the hub of the rear wheel of the bicycle and a roller or rollers E are pressed on the tyre of the wheel with varying force to provide a varying resistance to rotation of the wheel. The rollers E are pressed by levers F operated by rods g which are moved by screws g<SP>2</SP> operated by knobs G under the control of the rider.
Patent GB-639029-A (GB)
Title: Improvements in shaking screens
IPC: B07B1/40
Filed: 1947-12-22
Abstract: 639,029. Sifting apparatus. LARSSON, J. L. A. Dec. 22, 1947, No. 33843. Convention date, Aug. 5, 1944. [Class 117] [Also in Group XXIV] In a shaking screen of the kind provided at both ends with eccentric actuating shafts 5 (Figs. 1 and 2) rotating synchronously and in phase by means such as a chain drive between sprocket wheels 13, the shafts being supported at their ends in bearings 3 mounted on a fixed supporting structure 2, and being enclosed in boxbeam casings 7 between their ends, the individual bars 6 which form the screening element or serve as a support for a screening element are each detachably mounted as by means of bolts at each end thereof on the upper surfaces of the casings 7. Each casing 7 may carry sheet metal side members 15a by means of angle irons 16, and the members 15a on either side overlap to some extent. The plummer blocks 3 at one end of the screen may be supported each on a bracket 18 which is mounted to pivot on a horizontal pin 20 in a further bracket 19 secured to the structure 2. A tensioning device (see Group XXIV) is provided to ensure rotation of the wheels 5 exactly in phase. The Specification as open to inspection under Sect. 91 comprises also, as shown in Fig. 7 (Cancelled), an alternative method of supporting the end of each bar 6 which end is pivotally supported on a plummer block 3 carried on the casing 7. This subject-matter does not appear in the Specification as accepted.
Patent GB-466815-A (GB)
Title: Improvements in or relating to translating mechanism for type printing telegraph apparatus and the like
IPC: H04L17/26
Filed: 1935-12-06
Abstract: 466,815. Type-printing telegraphy. CREED & CO., Ltd., and SALMON. R. D. Dec. 6, 1935, No. 338SO. [Class 40 (iii)] In a type-printing receiver of the kind described in Specification 436,296, in which a typewheel is positioned in accordance with the aggregated motions of a set of sun-andplanet gears, each planet gear 21 is positioned by a connecting-rod 19 whose end 22 is carried by a disc or the like 8 which performs half a revolution at each change in the polarity of the corresponding signal impulses. One or other of the arms 11 a, 12a is depressed in response to each impulse, according to the polarity of the latter. If, in the condition shown, the arm 11a is depressed, the pawl 9 is tripped by the movement of the lever 11b and acts to clutch the disc 8 to the continuously rotating ratchet wheel 24. The disc 8 thereupon performs half a revolution, until the pawl 9 becomes disengaged by the action of the lever 12b. The disc 8 is coupled by a rod 19 to a frame 3 bearing the planet wheel 21, which is thus caused to move around the sunwheel 4. The sunwheel 4 is integral with an inwardly toothed segment 2, .and the planet wheel 21 meshes with the sunwheel and with a further inwardly toothed segment (not shown) similar to the segment 2. There are five discs 8 with their associated parts, and there is a sun-andplanet mechanism associated with each disc, so that the movements are aggregated for the purposes of positioning the type-wheel shaft.
Patent GB-318055-A (GB)
Title: Improvements in or relating to safety razors
IPC: B26B21/10
Filed: 1928-11-19
Abstract: 318,055. Bleloch, W. E., and Bleloch, W. Nov. 19, 1928. Razors, safety. - In a safety razor or blade holder of the kind described and claimed in Specifications 250,624, 267,247, 291,558 and 291,559, the movable tongue 5 is carried by a strip 6 connected by a tension spring 8 to the rear of the holder 1. The strip 6 has finger engaging wings and when it is moved into a position to disengage the tongue 5 from the razor blade it abuts a stop 11 and the spring 8 tends to tilt the strip about a bend 6d to withdraw the tongue 5 from the apertures in the holder and blade. The blade clamping shield 2 has at one end a tail 2<a> engaging a spring tongue 1<a> on the holder and at the other end it is formed with wings having notches 2<b>, Fig. 5, forming shoulders 2<c> which lock the shield in position and prevent its contact with the end of the blade.
Patent GB-473643-A (GB)
Title: Improvements in method of reducing or eliminating foam formation in the process of making paper
IPC: D21D5/26
Filed: 1936-12-10
Abstract: In paper manufacture, foam is eliminated from a fibre-water mixture by the addition of sodium metasilicate or sodium aluminate so as to maintain a pH value of 4,6--5,6.