baber/WOPTO huggingface dataset:
Patent GB-950295-A (GB)
Title: A method of applying electrical insulating coating
IPC: H01B3/00
Filed: 1960-05-18
Abstract: An insulating coating is applied to the surface of a piece of electrical equipment by covering one of two separated areas of the surface with a uniform coating of a self-curing mixture of two plastic components which are separately non-curing.  Before this coating has cured, at least that part of the zone of separation of the areas bordering the uniform coating is coated with a layer of one component with none of the other component or with less than is present in the self-curing mixture.  The other area is then covered with a uniform coating of the mixture having the same thickness as the first coating.  At least the part of the zone of separation which borders the second uniform coating is then coated with a layer of the second component with none of the first component or with less thereof than the self-curing mixture, thereby completing over the zone of separation a composite layer having the same thickness as the uniform layer.  The composite layer is kneaded, e.g. with a putty knife, to mix the components thereof and finally any uncured parts of the covering are cured. The layers applied in the zone of separation may each consist of one or other of the plastic components, and each have a decreasing thickness as compared with the uniform coating, or each may be of the same thickness as the said coating but have gradually diminishing amounts of one or the other component as the distance from the respective boundary of the uniform coating increases. The two plastic components may be differently coloured, to assist in producing uniform mixtures.  They may be prepared from dimethyl or methylphenylsiloxanes mixed with quartz and divided into two parts, one part being mixed with an aliphatic silicate, e.g. ethyl silicate, ethyl polysilicate, allyl orthosilicate or propyl orthosilicate, and the other with a curing catalyst such as lead octoate, dibutyl tin diacetate, cobalt naphthenate or tin octoate. The invention may be applied to filling in the gaps which occur at the supports which are required when objects such as large electrical coils are coated.  Specification 764,246 is referred to.
Patent GB-792375-A (GB)
Title: Improvements relating to the extrusion of materials
Inventor: WILKINSON SAMUEL CLIFFORD WALT
IPC: B29C48/355
Filed: 1955-06-17
Abstract: 792,375. Extruding polytetrafluorethylene &c. CRANE PACKING, Ltd. June 5, 1956 [June 17, 1955], No. 17533/55. Class 87(2). [Also in Group XXII] A restraining gear for an extrusion press, adapted to maintain longitudinal pressure on the extruded product 7 leaving the extrusion die, comprises a collet having a plurality of jaws 6 actuated by fluid pressure for clamping the the extruded product therebetween. The jaws 6 are split along V-shaped longitudinal lines, Fig. 5 (not shown), or along straight lines at an angle to the axis so as not to mark the extruded product which in this embodiment is of circular section. The jaws are each actuated by a piston 5 working in a radial cylinder 4. The collets are mounted in a hub 2 pivotally supported by trunnions 8 in a pair of levers 9 pivoted at 10, Fig. 1, to a fixed support and secured at the other end to a tie rod 11 connected to a bell crank lever 12. The latter is adapted to engage a piston 13 in a fluid pressure cylinder 14 connected to a pressure gauge 15 which thus records the restraining force applied lengthwise of the extruded product. Other embodiments of clamping jaws are described for extruded products of tee, angle, and hookshaped cross section, Figs. 5 to 7 (not shown). The extruded product may be of metal or of a plastic material such as polytetrafluorethylene.
Patent GB-413860-A (GB)
Title: Improvements in or relating to air power transmission systems
IPC: F01B1/02
Filed: 1933-06-20
Abstract: 413,860. Pneumatic-power transmission. JORGENSEN, O. E., 39, Church Road, Gosforth, Newcastle-on-Tyne. June 20, 1933, No. 17596. [Class 8 (ii).] Comprises a closed air system containing a compressor plant in combination with a plurality of air engines in which the power output can be regulated independently in each engine by means of angularly-adjusted eccentrics actuating slide valves controlling the air flow through the engines. The back pressure is one quarter or more of the working pressure. Each engine comprises a number of parallel cylinders connected to cranks on a shaft A. Distribution is effected by slide valves driven by eccentrics or cranks M on a shaft parallel to the main shaft and driven therefrom by spur gearing with inclined teeth. One or both of the wheels are longitudinally movable to vary the out-off, the outlet, the compression and the inlet. In the construction shown, the wheels D, L have keys engaging slots in the shafts and are moved by the heads of bolts P on a crosshead H secured to a hand-operated spindle G, the wheels having grooves which receive the bolts.
Patent GB-578296-A (GB)
Title: Improvements in or relating to the manufacture of metal castings by the centrifugal method
IPC: B22D13/02
Filed: 1940-12-13
Abstract: 578,296. 'Casting - machines. CLAY CROSS CO., Ltd., and JERVIS, F. Dec. 13, 1940, No. 17666. [Class 83 (i)] Moulds.-A centrifugal casting-machine has a chamber 11 to receive and ducts 12 to withdraw centrifugally gases generated during casting or a duct 2a, Fig. 2, to withdraw them by suction, e.g. by a fan or pump 13. The mould 6 may have a cap 9 adapted to admit the poured metal and form the upper part of the shell case or other article, and a plug 10. It may also have a sand or metal core 7 with one or more vent passages 7a. It may be rotated at 200 r.p.m. during pouring and then at up to 1500 r.p.m. The ducts 12 may be tangential to the chamber 11 and vanes 14, Fig. 5, may be attached to mould-housing 5 to assist extraction of the gases.
Patent GB-595966-A (GB)
Title: Improvements relating to carriages for erecting and transporting poles
IPC: B60P3/41
Filed: 1945-07-11
Abstract: 595,966. Carriages for erecting and transporting poles. BALFOUR, BEATTY, & CO., Ltd., and STEPHENS, J. L. R. July 11, 1945, No. 17733. [Class 78(ii)] In means for erecting poles, masts or like upright standards a wheeled vehicle is employed which is fitted with a pivoted arm carrying a bearer for the poles and is provided with means for moving the arm in such a. way that the bearer can be inserted below the free end of a pole and the like, the butt end of which has been inserted in the mouth of a post hole or bears against an abutment, whils the vehicle and the pivoted arm are operated to raise the pole. The arm 13, Fig. 1, is pivoted to the frame 12 of a standard tractor 11 and carries two rollers 16 and 17, the roller 17 being shaped to. fit the pole 35. An arm 19 is secured to the arm 13 and is rigidly connected by strut 20 so that when arm 19 is operated by a winch or by ropes 26 through pulleys 24 and 25 the two levers move as one unit. Bracing cables for lever 19 are provided having a tensioning device 23 connected to arm 13 at 22. A pole bolster 27 is secured to the frame 12 and struts 28 provide additional support for the bolster. A cross beam 29 at the upper end of the bolster 27 forms a support for a pole, a series of holes in the cross beam are provided to receive pegs which locate the pole in position in the cross beam. The bolster is provided with a bracket 32 carrying two pulleys 33 acting as guides for the rope 26 when the lifting arm is lowered. The bolster carries two stops 34 which are engaged by the lever 19 and limit its downward movement.
Patent GB-129708-A (GB)
Title: Improvements in or relating to Gyro-compasses.
Inventor: BROWN SIDNEY GEORGE
IPC: G01C19/38
Filed: 1917-11-30
Abstract: 129,708. Brown, S. G. Nov. 30, 1917. Gyroscopic compasses.- Relates to gyro-compasses of the type described in Specifications 124,529 and 124,533, in which the gravitational control is effected through the aid of an air blast displacing mass (preferably in the form of liquid moving between two vessels) transversely to the horizontal axis of the gyrocasing. In order to damp the oscillations of the compass, the gravity control is arranged so as, on the gyroscope beginning to oscillate, to accelerate the air blast and the mass displacement to bring the maximum displacement in advance of the middle of the swing of the gyroscope. In the construction shown, the air nozzle C is mounted in the ring B carrying the gyro-casing A on knifeedges a. The arrangement of the air nozzle C is as described in Specification 124,845, [Class 40 (i), Electric signalling systems &c.]. The nozzle directs an air blast into a divided air-box D carried on a pendulum E, mounted to turn around the concentric air-box c and controlled by a damping-device shown as a cup F on the gyro-casing carrying a viscous fluid into which the end of the pendulum dips.
Patent GB-712307-A (GB)
Title: Crank shaft bearing, especially for combustion engines with cylinders arranged in-line
IPC: F16C9/02
Filed: 1952-07-15
Abstract: 712,307. Mounting crankshaft bearings. BAYERISCHE MOTOREN WERKE AKT.-GES. July 15, 1952 [July 16, 1951], No. 17814/52. Class' 12(1) A main bearing block of a crankshaft for an internal - combustion engine comprises upper and lower halves 3 and 4. the half 3 being secured to a light metal crank case 2 by bolts 6 which take the horizontal forces, and the half 4 being held by bolts 7 which pass through the block at each side of the bearing and take the vertical components of the load. The half 3 may also be located in the case by pins.
Patent GB-562052-A (GB)
Title: Improvements in or relating to locating and securing devices for use with tubes
IPC: F16F9/32
Filed: 1942-12-21
Abstract: 562,052. Tube couplings. AUTOMOTIVE PRODUCTS CO., Ltd., and BROCK, W. H. J. Dec. 21, 1942, No. 17827/43. Divided out of. 561,134. [Class 99 (i)9 [Also in Groups XXII and XXVI] Members are secured to tubes of metal or synthetic resin or other plastic, either internally or externally by applying dished washers externally or internally respectively and then flattening the washers to collapse or expand the tube into contact with grooves formed in 'the fitting. Rubber rings or like resilient or soft packings may be inserted into the grooves when a fluid-tight joint is required or a coating of cement may be employed. A plug 11, Figs. 1 and 2, to which, an air pump piston 16, 17 is to be secured by a screw 18, is formed with a groove 13 over which a dished washer 14 is assembled and flattened in a press effecting a joint, as shown in Fig. 2. An end fitting 'may be secured to a tube by closing in the extreme end of the tube into a groove formed at the junction with the fitting of a spigot fitting into the tube. To expand the end of a tube 23, Fig. 4, into a groove 27 formed in a cap, this is assembled on the tube so that the tube end abuts the end 28 and a dished washer 29 is forced up to the end of the tube and flattened. In a modification, the cap 24, Fig. 6, carrying a lug 31 is secured by inserting the tube which carries an outwardly bulged. disc 33 having a groove so formed in its edge as to act as a spigot entering the tube and an abutment engaging the end. The groove 27 leads into the flange 26 by a conical section to permit the gradual expansion of the tube end as the disc is flattened by contact with the end 28. An interttiallygrooved collar may be fixed in similar manner at an intermediate point along the length of the tube. The flattening punch may have a projection from its operative face surrounding or entering the washer as the case may be to increase the displacement of metal' into the fixing groove.
Patent GB-211780-A (GB)
Title: Powder for the soldering of aluminium
IPC: B23K35/36
Filed: 1923-07-10
Abstract: 211,780. Rossi, P. July 10, 1923. Fluxes.-A flux for the soldering of aluminium comprises 1150 parts of potassium chloride, 100 parts of sodium chloride, 375 parts of aluminium fluoride, and 375 parts of cryolite.
Patent GB-211067-A (GB)
Title: Improvements in and relating to petrol or similar liquid filters and water separators
IPC: B01D35/00
Filed: 1923-07-10
Abstract: 211,067. Micklewright, R. G., Micklewright, C. N., and Hallum, G. S. July 10, 1923. No Patent granted (Sealing fee not paid). Filters and strainers having sheet filtering or straining materials. - Apparatus for filtering or straining petrol or a similar liquid, and for separating any small quantities of water or other heavy liquid that it may contain, before it enters the carburettor of an internal-combustion engine, comprises a chamber containing two strainers and a funnel through which the liquids pass to a sump at the bottom of the chamber, in which sump the water and other heavy impurities are separated out. The funnel 2 rests on a shoulder 4 and is provided with a projecting pin or stud 3 to facilitate removal. The lower strainer consists of a tube 5 having a bottom of fine wire gauze 7 or similar material, the gauze being stretched by forcing a ring 8 into the tube. The upper strainer consists of a cone of wire gauze or similar material clamped between two rings 10, 11 resting on a shoulder 13 and the top of the tube 5. The rings 10, 11 are held down by a spring 17 fastened to the screw cap 14. A projecting pin 6 and a cross-bar 12 are provided in the lower and upper strainers, respectively, to facilitate removal. The inlet opening 19<A> is between the rings 10, 11 and the cap 14. It is enlarged at 19, the enlarged part being screwed internally to receive a tap. The outlet union 20 is screwed into the side of the chamber 1 just below the shoulder 4, the outlet passage being right-angled as shown. A drain tap is screwed into an opening 22 at the bottom of the sump 1<@>.
Patent GB-819295-A (GB)
Title: An electrical digital to analog translator
IPC: H03M1/00
Filed: 1957-06-05
Abstract: 819,295. Electric selective signalling systems. STANDARD TELEPHONES & CABLES Ltd. June 5, 1957 [June 5, 1956], No. 17839/57. Class 40 (1). Apparatus for translating a digital code signal group to an analogue signal comprises input terminals for connection to a single-phase A.C. voltage source, output terminals for connection to a voltage-responsive indicating device, a plurality of normally short-circuited singlephase A.C. voltage varying devices arranged in series between said input and output terminals, each said voltage-varying device corresponding to a digital position of a code group to be translated, and switching means for each of said voltage-varying devices responsive to a one (or zero) digital code signal in the corresponding digital position of the code group to series connect the corresponding one of said voltagevarying devices between said input and output terminals, whereby the total variation to which the voltage from said source is subjected in its passage from said input to said output corresponds to the digital code signal group being translated to an analogue representation which is indicated by said voltage-responsive indicating device. In a first embodiment, Fig. 1, data is registered in digital form on five relays 7 to 11, to cause selected phase-shifting circuits to be switched into series thereby causing a voltage at terminals 12 which differs in phase from an input voltage E 1N  by an amount representative of the data registered digitally on the relays. This phase difference causes a servomotor 13 to correspondingly position a shaft. In a second embodiment, Fig. 2, synchro differential transformers are selectively switched into series by relays 21 to 24 in such a way that the resultant field produced by the stator 25 of a so-called synchro-motor is displaced angularly with respect to an input field caused by a voltage applied to a primary winding 15 of a transformer 27 by an amount representative of the registered data. Rotor 26 of the synchro-motor therefore moves through an angle representative of the registered data.
Patent GB-372785-A (GB)
Title: The manufacture of conversion products of higher paraffin hydrocarbons
IPC: C07C17/00
Filed: 1931-02-06
Abstract: Copper salts, or oxides or hydroxides of heavy metals having a specific gravity above 5.5, e.g. zinc or iron hydroxide, are used as catalysts in the processes of the parent Specifications for the production of lubricants for use in the textile industry by treatment of halogenated technical mixtures of higher paraffin hydrocarbons containing more than eight carbon atoms with aqueous caustic alkalies, alkali carbonates or alkaline earths.  The halogenated paraffins used in the process of Specifications 343,948 and 367,545 contain at least two halogen atoms, and in the process of Specification 372,784 at least nine halogen atoms in the molecule, and the use of the said catalysts facilitates their removal.  In an example, a chlorinated paraffin obtained by chlorinating hard paraffin until the entrance of six chlorine atoms into the molecule, average molecular weight 367, is heated in an autoclave with aqueous caustic soda.ALSO:Copper salts, or oxides or hydroxides of heavy metals having a specific gravity above 5,5, e.g. zinc or iron hydroxide, are used as catalysts in the processes of the parent Specifications for the treatment of halogenated technical mixtures of higher paraffin hydrocarbons containing more than eight carbon atoms with aqueous caustic alkalis, alkali carbonates or alkaline earths. The products of the process of Specification 343,948 are stated to be oiling and greasing agents for use in the textile and leather industries.  The halogenated paraffins used in the process of Specifications 343,948 and 367,545 contain at least two halogens, and in the process of Specification 372,784 at least nine halogen atoms in the molecule, and the use of the said catalysts facilitates their removal.  In an example, a chlorinated paraffin obtained by chlorinating hard paraffin until the entrance of six chlorine atoms into the molecule, average molecular weight 367, is heated in an autoclave with aqueous caustic soda containing copper sulphate as catalyst.
Patent GB-1045732-A (GB)
Title: Improvements relating to the sowing of seeds
Inventor: ELLIOTT JAMES GAVIN
IPC: A01C7/08
Filed: 1962-05-09
Abstract: 1,045,732. Treating and sowing seeds. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Aug. 8, 1963 [May 8, 1962], No. 17886/62. Headings AID and A2Q. Seed is mixed with a fluid matrix such as a gel, paste or a viscous fluid and distributed by a machine comprising a hollow coulter 20 which communicates with a pipe 21 connected to a rubber tube 23 which lies in an arcuate guide 24, the tube being squeezed by rollers 26 on a rotor 25 to propel the material along the tube. In a modification a series of hollow wheels are provided with spikes which penetrate into the ground and are connected to cylinders containing plungers to inject a small portion of the matrix and seed each time the spike penetrates the ground. In a further modification wheels or rollers are provided with fingers which collects a drop or lump of the matrix as it passes a feed roller. The matrix may be an aqueous gel or paste, comprising gelatine or sodium alginate and, if desired, a fertilizer, an insecticide, a fungicide, a bactericide, a bird repellant, an inoculant causing legumes to form nitrogen-fixing nodules, or a chemical preventing seed dormancy.
Patent GB-416877-A (GB)
Title: Improved method of sealing envelopes and envelopes therefor
IPC: B43M5/00
Filed: 1933-06-23
Abstract: 416,877. Envelopes. HARBORNE, T. L., Torwood, The Shrubbery, Westonsuper-Mare. June 23, 1933, No. 17935. [Class 146 (ii).] An envelope having a folded narrow flap with no adhesive is sealed by passing the mouth of the envelope between a pair of crimping-wheels to leave a non-crimped margin at the edge of the envelope and a crimp-sealed line. The non-crimped margin presents at each side of the envelope a small gap into which the point of an opener can be inserted. As shown in the Figure, the envelope is of wallet design having a plain unseamed back 1 and a front joined together down the sides by narrow side wings 3, and the sealing flap 4 is preferably three-eighths to one-half inch wide so as to receive a line of crimping 5 of one-eighth to one-quarter inch in width.
Patent GB-356772-A (GB)
Title: Improvements in or relating to explosive compositions
IPC: C06B23/00
Filed: 1930-06-11
Abstract: 356,772. Explosives. STETTBACHER, A., 7, Langmauerstrasse, Zurich, Switzerland. June 11, 1930, No. 17949. [Class 9 (ii).] Plastic explosive compositions are made by mixing 5-95 parts by weight of pentaerythrite tetranitrate deposited in finely crystalline form with 95-5 parts of a liquid nitric acid ester of polyvalent alcohols or a mixture of said esters with which has been incorporated 0À1-8 per cent of collodion cotton. The mixed nitric esters may comprise 75 per cent of nitroglycerine and 25 per cent of nitroglycol; and this may be phlegmatized and stabilized by the addition of up to 6 per cent of. camphor and 0À1-3 per cent of urethane before gelatinization with the collodion. Other usual ingredients may also be added such as inorganic nitrates or perchlorates, wood-meal, vegetablemeal, vaseline, paraffin, and aromatic nitrohydrocarbons.
Patent GB-677681-A (GB)
Title: Improvements in and relating to fluid blast electric circuit interrupters
IPC: H01H33/92
Filed: 1950-07-19
Abstract: 677,681. Fluid-blast switches. BRITISH THOMSON-HOUSTON CO., Ltd. July 19, 1950. [July 27, 1949] No. 18032/50. Class 38 (v). In order to avoid excess pressure in the pressure-producing chamber of a circuitbreaker, an arc control member 20 having a wide slot 21 and one or more narrow slots 22 partly encloses the chamber, the slots 22 preventing heavy-current arcs from bowing outwards as at 21a, whereas light-current arcs, due to their smaller diameter, can pass through the slot(s) 22 to lengthen themselves and so increase the blast pressure. This bowing-out action due to the magnetic loop effects inherent in the circuit-breaker may be assisted by blowout coils or plates. The pressure-generating arc formed between contacts 10, 11 produces a blast of fluid, e.g. oil, in a passage 19 and across the interrupting arc between contacts 9, 10, the follow-up movement of contact 10, on downward movement of contact 9 being limited by the engagement of a flange 13 with a stop 14. A piston 24 is biased, in the contact-closed position, to the position shown by a nest of springs 25 which are stressed by a rod 26 on upward closing movement of cross-bar 6. On light-current interruption, the arc-produced pressure is insufficient to prevent downward movement of the piston by the springs 25 to produce a supplementary blast 27. On heavycurrent interruption, the arc-produced pressure is greater than that of the springs 25, so that the piston 24 moves upwards thereby increasing the volume of the chamber so as to relieve the pressure therein. A vent or series of vents such as 32 and 33 are provided to assist in pressure relief, and these vents may be progressively uncovered by upward movement of the piston. The Specification refers also to single-break units and to the production of pressure by gas liberated from the arc from solid insulating substances.
Patent GB-186179-A (GB)
Title: Improvements in or relating to albums, binders or the like
IPC: B42F5/00
Filed: 1921-07-02
Abstract: 186,179. Lunn, J., and Wright, J., (trading as Lunn, Wright, & Co.). July 2, 1921. Post files.-In binders for envelopes such as those adapted to contain gramophone records &c., the envelopes are threaded on to rigid curved onepart loops 7 secured by their ends to the back of the binder, so that the envelopes lie flat when the binder is open. The envelopes are preferably connected by hinges to stiff strips provided with metal eyelets by means of which the envelopes are threaded on the loops 7. The loops may be capable of removal from the back, or of opening therefrom.