baber/WOPTO huggingface dataset:
Patent GB-552690-A (GB)
Title: Improvements in and relating to electromagnetic induction apparatus
IPC: H01F27/34
Filed: 1941-11-04
Abstract: 552,690. Reactors. BRITISH THOMSONHOUSTON CO., Ltd. (General Electric Co.). Nov. 4, 1941, No. 14215. [Class 38 (ii)] Reactors and like inductive windings 15 are provided with a wound strip core 12, 13 on each coil side, the cores each having an air gap 25 formed by slotting with a milling cutter while the core is clamped between jaws 22, the clamping structure being subsequently removed, and the cores turned so that the gaps lie inside the winding window. The turns of the core strip are held together near the gap by line welding or riveting. Specifications 501,474 and 539,093 are referred to.
Patent GB-967190-A (GB)
Title: Improvements in or relating to devices for measuring the liquid contents of containers
Inventor: KNOWELDEN EDGAR LLOYD
IPC: G01F23/66
Filed: 1962-04-12
Abstract: 967, 190. Indicating liquid levels. FLIGHT REFUELLING Ltd. April 3, 1963 [April 12, 1962], No. 14234/62. Addition to 811, 129. Heading G1H. The liquid level indicating device of the parent Specification is modified in that the measuring rod carried by the slider 29 is replaced by a measuring tape 33, the liquid level being indicated by markings on the tape. The tube 13 on which the annular float 25, carrying the tubular magnet 26 is mounted may be of stainless steel and the float may be of stainless steel or a plastics material. The liquid may be contained within the inner walls 10, 11 of a double walled container, the space between the inner walls and the outer wall 12 being evacuated. The tube 13'connects with a metal bellows 18 and a fitting 19 with a cap 22 and valve 24 through which the tube may be evacuated. To obtain a reading, the vacuum in the tube 13 is released, the cap 22 removed and the slider 29 lowered into the tube until its movement is arrested by the magnetic coupling between it and the magnet 26, the mark on the tape level with the top of the fitting 19 being observed.
Patent GB-860058-A (GB)
Title: Improvements in or relating to frequency converting electron discharge tubes
Inventor: DAVID JOHN
IPC: H03D7/20
Filed: 1959-04-27
Abstract: 860,058. Space charge wave tubes. ENGLISH ELECTRIC VALVE CO. Ltd. Sept. 25, 1959 [April 27, 1959], No. 14270/59. Drawings to Specification. Class 39(1). A parametric frequency converter tube has an input coupler fed with input signals, a pump electrode system, preferably quadrupole, fed with pump frequency, an output electrode system consisting in the first case of a disc and annulus and in the second case of two semicircular segments to intercept the helically rotating beam which is caused to rotate helically by an aerial magnetic field and whose position and diameter of rotation depends on the input and pump frequencies, and an output circuit connected to the output electrode system. The output circuit is tuned to 2f s -f p  in the first case and f s +fp or f s -f p  in the second case. If fp=2f s  the output may be of zero frequency, i.e. D.C., and the output circuit is resistive. In the second case the output is amplitude modulated. The cyclotron frequency is equal to the input signal frequency,
Patent GB-1219029-A (GB)
Title: Improvements in or relating to electrical cable connectors
Inventor: LINK EDWIN ALBERT
IPC: H02G15/10
Filed: 1969-03-19
Abstract: 1,219,029. Electric couplings. R.T.E. CORP. 19 March, 1969, No.14312/69. Heading H2E. A high voltage cable 10 is tapped by removing its semi-conductive screening layer 13 and sheath 14 from part of its length, enclosing the exposed insulation 12 in a housing 16 containing resilient insulating material 18 having a passage 28 for cable 10 and a passage 30 for a branch cable 43 which has a probe 74 at its end which is forced into engagement with the conductor 11 of cable 10 by a device 42. Device 42 comprises a rigid polypropylene tube 62 at one end abutting the body 70 of probe 74, and at the other being placed beneath the cut-back end 66 of the semi-conductive sheath of cable 43 and abutting a split ring 60 on which is placed a washer 58 which abuts an internal flange 56 of a collar 41, to transmit axial movement to probe 74 when collar 41 is threaded on to housing 16 at 40. Housing 16, formed as two halves 16a, (16b, Fig. 3, not shown) of metal or conductively coated plastics, is connected to the ends of semi-conductive layer 13 at a lug 19. Insulation 18 of elastomer or silicone rubber is formed as jaws 22, (24) hinged at 26 and having 'co-operating corrugated surfaces. Prior to insertion of cables 10, 43, silicone grease is placed in passage 28 to subsequently complete sealing of the tapping, and passage 30 may be plugged, the plug being removed when probe 74 is to be inserted. Probe 74 may be screwthreaded and be forced into insulation 12 by twisting cable 43 prior to operation of device 42. In an alternative embodiment (Figs. 4-9, not shown), collar 41 is replaced by a collar (142) threaded on to housing (156), the collar having a further internal thread receiving a further collar (132) abutting a washer around a tapered split ring (136) on the cable as above. The resilient insulation is formed as two parts, one (106) disposed above cable 10 and having two longitudinal ridges co-operating with grooves in a part (102) disposed below cable 10.
Patent GB-150803-A (GB)
Title: Improvements in motor driven agricultural implements
IPC: A01B63/02
Filed: 1919-06-05
Abstract: 150,803. Cooper, H. June 5, 1919. Deflectable axle-ends; steering-gear. - Comprises a motor-tractor for agricultural implements in which the front wheels are steered and driven and can be independently adjusted in a vertical direction. The front wheels b rotate on swivelling-axles ends e<1> and are driven from the gearwheels e through universal joints e<4>, pin connexions d<4>, and dog clutches d<5> which can be disengaged for steering by a hand-lever. The axle ends e<1> are carried by brackets c<2> sliding vertically in guides in the main frame a, and adjusted by means of screws b'. The wheels are swivelled for steering by shafts f<1> universally jointed at f<2> and connected together by a rod, one shaft sliding through and being operated by a worm sector g<4> which is held in place by two fixed arms g<3>, and is rotated by the steering shaft g<6>.
Patent GB-1338393-A (GB)
Title: Binders for periodicals and other publications
IPC: B42F11/00
Filed: 1970-03-25
Abstract: 1338393 Loose-leaf binders EASIBIND Ltd 19 April 1971 [25 March 1970 23 Dec 1970] 14368/70 and 61111/70 Heading B6E A binder for loose-sheets or periodicals 4, Fig. 1, comprises a pair of covers 1, 2 articulated to each other by a spine 3 having attached thereto a support plate 6 by rivets 9, the support plate 6 which is provided with flanges 10 defining channels 11 carries slidably a pair of staple engaging securing members 7 each provided with three limbs 13, 14, 15. The securing members have a resilient flange 16 which engages the associated channel 11 frictionally and the lower securing member 7 abuts a stop 12 when the periodicals 4 are threaded on the securing members. In a further modification a plurality of limbs (21, Fig. 5) is mounted as a pair of spaced sets on a common base-plate (24).
Patent GB-151057-A (GB)
Title: Improvements in and relating to electrical step-by-step mechanisms, as used for propelling the hands of electrical impulse clocks
IPC: G04C13/10
Filed: 1919-06-06
Abstract: 151,057. Parsons, I. H., and Ball, A. E. J. June 6, 1919. Electric clocks.-A lever D, Figs. 1 and 10, with pawl E for driving a ratchet-wheel F geared to time hands takes up a fresh tooth, when, with the armature A, it is reared about its pivot A' by an electro-magnet B and drives on cessation of the current, its descent being effected slowly by a hanging load H<3> constituting the piston or plunger of a dash-pot H. The slow drive is provided to eliminate noise and for the same purpose the check pawl F<4> is shaped so as to engage gradually, the lever itself is overbalanced by a counterweight D<1> so that it does not knock at the joint D<3> with the driving-load, and the lower air-gap between the armature A and the electro-magnet is made less than the upper. The armature, if arranged at a distance from the pivot A<1>, may be horizontal and the counterweight D' may be replaced by a spring. The ratchet-wheel may be replaced by the tumbling cam shown in Fig. 10.
Patent GB-662804-A (GB)
Title: Improvements relating to the harvesting of beet and like root crops
IPC: A01D27/02
Filed: 1949-05-30
Abstract: 662,804. Root-crop harvesters. STANDEN & SONS, Ltd., F. A., and STANDEN, P. Jan. 17, 1950 [May 30, 1949], No. 14438/49. Class 6(iii) A root crop harvester comprises a wheeled chassis 50 with a front hitch 50a for attachment to a tractor, a frame 51 within the chassis and means for supporting the front and rear ends of the frame for manually controlled up and down movements of the frame parallel to itself, and root lifting shares 75 and an inclined slattype conveyer 80 carried by the frame. The front end of the frame shown is raised and lowered by links 52, 52a under the control of a hand lever 55, and the rear end is adjusted by a shaft 57 with eccentrics 58, the angular position of the shaft being adjusted by screw and nut mechanism 60, 61, of which the nut 61 is carried by an arm of the shaft, the screw being rotated by a handwheel 62a. The frame carries a gear box 66 and bracket 64 for a main shaft 63. which is driven from the power take-off shaft of the tractor. A drive 71, 73, is taken from the shaft for rotating two discs 67 carrying pivoted rubber sweeps for moving the severed beet tops to one side; the topping may be effected by fitting the tractor with the unit forming the subject of Specification 657,174. Gear-box shaft 81 drives the conveyer 80 which transfers the roots lifted by the shares 75 to a slatted retainer 90 whence they are elevated by an elevator 91 and delivered to a vehicle travelling alongside the implement.
Patent GB-321697-A (GB)
Title: Condensation products of polyhydricphenols and formaldehyde
IPC: C08G8/28
Filed: 1928-05-17
Abstract: 321,697. Soc. des Usines Chimiques Rhone-Poulenc, (formerly Soc. Chimique des Usines du Rhone), Grillet, N. B., and Cottet, E. C. May 17, 1928. Condensation products of formaldehyde and polyhydric phenols.-Formaldehyde is mixed with a polyhydric phenol such as resorcinol, preferably without a catalyst, at temperatures below 80‹ C., and the water is eliminated by distillation in vacuum at low temperatures or by precipitation with an aqueous liquid, an intermediate product being obtained which is suitable for the production of plastic masses, moulded articles, and varnishes. When the water is removed by precipitating the condensation product by dilution with water or salt solutions and filtering off the precipitate, the product may be dried at a low temperature in a vacuum or in a current of air, or it may be mixed with a filler such as sawdust and then dried. The usual fillers, colouring matters, &c. may be added, and may be incorporated in a ball-mill. The moulding may be effected at 120-130‹ C. with 150-200 kilos pressure for 10 seconds. The condensation products may also be used for varnishes in solution in various organic solvents such as acetone, methyl alcohol, ethyl alcohol, ethyl lactate, and benzyl alcohol, with or without the addition of colouring mate-' rials, pigments, diluents, or plastifying agents. In the examples, (1) resorcinol is mixed with formaldehyde of 30 per cent, and the solution is concentrated at 20 mm. at 15-35‹ C., the resulting syrup being mixed with a filler such as sawdust for moulding, or dissolved in a solvent such as acetone for a varnish; (2) resorcinol is mixed with formaldehyde of 30 per cent and sawdust is added, the mass being distilled at 20 mm. at 26- 41‹ C. giving a powder suitable for moulding; (3) resorcinol is mixed with formaldehyde of 30 per cent and maintained at 68‹ for an hour; it is then cooled to 25‹ C. and diluted with saturated brine at 20‹ C., the precipitate being filtered off, washed with ice-cold water, and dried at 30‹ C. in a stream of air; (4) the wet precipitate of the previous example is mixed with sawdust in a ball mill and dried in a vacuum at not above 35‹ C. Specification 275,678 is referred to.
Patent GB-501830-A (GB)
Title: High tension field coil
IPC: H01F41/086
Filed: 1937-05-27
Abstract: 501,830. High -tension. field coils. BOHLI, J. May 27, 1937, No. 14701. Void. Convention date, May 27, 1936. [Class 120 (iii)] [Also in Group XXXV] High - tension field coils are wound by arranging the wire layers 2 on conical surfaces 4, the apices of which lie on the axis of the coil 1, and in order to obtain steep inclinations of the conical surfaces, which minimizes risk of disruptive electric discharges between the layers, the wire is passed through an adhesive varnish, e.g. a rapidly drying insulating varnish before winding. The coil may have flanges 3 perpendicular to the axis, Fig. 1, or inclined thereto, Fig. 2, The core of the coil may have a circular or polygonal cross section.
Patent GB-933776-A (GB)
Title: Drying kiln
IPC: B22C9/12
Filed: 1960-04-27
Abstract: 933,776. Core drying furnaces. ZAVODY V.I. LENINA PLZEN, NARODNI PODNIK. April 27, 1960 [April 29, 1959], No. 14721/60. Classes 51 (1) and 51 (2). [Also in Group XIII] A drying kiln for drying sand moulds and cores comprises a drying space O, Figs. 1 and 2, provided in both of its lateral walls with mixing chambers 3, for mixing combustion gases from heating burners 1 with combustion gases recirculated from the drying space O through castiron pipes 10, in a kiln truck 25 carrying the moulds and cores, pipes 13, exhaust-fans 11 and pipes 14, 15, to the chambers, and guiding blades 6 above the chambers to direct the mixture of gases into the drying space. Referring to Fig. 4 each burner is connected with a channel 2 leading to the chamber 3 which is provided with four ports 4 connected to the recirculating pipes 15 which include regulating flap valves 16, Fig. 2. The chamber 3 is also provided with a dividing bar 5, and at each side with a ledge 7 to which ledges are fixed, by means of bolts, the blades 6 of which the highest are the widest and the lowest are the most narrow. The blades and ledges form blade grids secured by bolts 8 to the lateral walls of the kiln. The inner ends of the pipes 10 are connected through asbestos seals 21 with cast-iron extensions 22 connected to a collecting pipe 12, in turn connected to the pipes 13. The outer ends of the pipes 10 are provided with cleaning openings 19 having covers 19<SP>1</SP>, whilst the top walls of the pipes are provided with openings along their lengths closable as required by refractory tiles according to the amount of moulds and cores to be dried. The truck is moved by a rack-and-pinion (not shown). Chimney channels 17 having flap valves 18 are provided in the pipes 14 adjacent the outlets of the fans 11. The outer end of the truck 25 is provided with a wall 24 for closing the kiln and when the truck is in position, the kiln is sealed by sand in grooves 29 along the sides of the truck and by a sand deposit 26 around the front opening of the kiln and the wall 24.
Patent GB-131480-A (GB)
Title: Improvements in and relating to Porthole Screens for Ships.
Inventor: FAIRCLOUGH THOMAS
IPC: B63B19/00
Filed: 1918-09-11
Abstract: 131,480. Fairclough, T., and Wilson, H. T. Sept. 11, 1918. Fly-screens.-A ship's porthole is fitted with a detachable mosquito or like screen so arranged that it does not prevent the closing of the porthole winsecured at its edge in the chandow, the screen mesh 1 being nel of a ring 2 provided with a fixed pin 8 and a sliding pin 9 for securing the ring in position against abutments 14.
Patent GB-1066897-A (GB)
Title: Improvements in rubber composite, method and composition of matter
IPC: C08L65/00
Filed: 1966-04-04
Abstract: Tackifiers and bonding cements for ethylene/propylene/polyene terpolymer rubber stocks comprise (a) an unvulcanized ethylene/propylene/polyene terpolymer rubber, (b) a vulcanizing agent for (a), and (c) a resin which is the reaction product of (i) phenol or an alkyl or cycloalkyl phenol having at least one unsubstituted ortho or para position, (ii) a terpene and (iii) a cyclic polyene other than a terpene which is a mono or polycyclic hydrocarbon having at least two non-conjugated double bonds, (a) and (c) being dissolved in a volatile organic solvent.  The rubber (a) may be derived from ethylene, propylene and dicyclopentadiene, 1,4-hexadiene, methylenenorbornene, 1,5-cyclooctadiene, allo ocimene or methyl cyclopentadiene dimer. Resin (c) may be prepared by reacting phenol or an alkyl or cycloalkyl phenol, a terpene, e.g. pinenes, d-limonene, a -terpineol and delta-3-carene, and a cyclic diene, e.g. dicyclopentadiene, methylcyclopentadiene dimer, vinylcyclohexenes, bicycloheptadiene, cyclododecatriene, cyclooctadiene, cyclooctatriene, cycloheptadiene, cyclopentadiene and methylcyclopentadiene, in the presence of a Friedel-Crafts catalyst in a solvent, e.g. aromatic and aliphatic hydrocarbons, chlorinated aromatic hydrocarbons and naphthenes. The cements may also comprise extending oils and conventional fillers, e.g. carbon black, silica, calcium silicate and lignin, and may be used for bonding ethylene/propylene/polyene rubbers, e.g. in retreading tyres. Examples describe the preparation of resins from phenol, dicyclopentadiene and (A) a -pinene and b -pinene, (B) b -pinene, (C) a -pinene and (D) d-limonene, and from phenol, bicycloheptadiene and (E) b -pinene and (F) d-limonene, in xylene in the presence of boron trifluoride.  Further examples describe cements comprising ethylene/propylene/polyene terpolymer rubbers, carbon black, extending oil, zinc oxide, stearic acid, mercaptobenzothiazole, tetramethylthiuram monosulphide, sulphur and (1, 2 and 4) resin (A), (3) resin B, (5) resin A, B, C or D, (6) resin A, B, E or F and (7) resin A and butyl rubber.
Patent GB-541396-A (GB)
Title: Improvements in or relating to copper clad wire and methods of producing the same
IPC: C25D5/48
Filed: 1940-10-04
Abstract: 541,396. Wire. STEVENS, A. H. (National Standard Co.). Oct. 4, 1940, No. 14880. Addition to 534,715. Drawings to Specification. [Class 83 (ii)] [Also in Group XXXVI] Steel wire is coated electrolytically with two layers of copper, the first coarsely crystalline layer which is at least 0.002 inch thick, being produced in a cyanide bath, and the second finely crystalline porous matt layer, at least 0.003 inch in thickness, in an acid bath. Before coating, the wire is cleaned in hot hydrochloric acid of not less than 20 per cent concentration. The coated wire is reduced in diameter by drawing, which has the effect of hardening the porous matt coating.
Patent GB-290987-A (GB)
Title: Automatic train control for railways
IPC: B61L3/12
Filed: 1928-05-21
Abstract: 290,987. Kemmann, G. May 20, 1927, [Convention date]. Electrical systems, automatic; track apparatus actuating signals on and other than on train.-In a signalling system of the kind in which the train carries an electromagnet energized from a source of direct or alternating current for co-action with a magnetic core with windings on the track, there are arranged, in series with the magnet windings, relays which control, respectively, signals or trainstopping apparatus on the train and signals on the track. Fig. 5 shows a train-carried magnet L energized from a generator M and having in series with the windings a relay N which controls signals or brakes. The windings on the track magnet G are in series with the relay Rg which controls the circuit of a block relay (not shown) which controls the circuits of the adjacent signaloperating mechanism and of the relays of the adjacent advance and rear sections in such a way that the train is protected by the track signals S which, when at " clear," close contacts in the circuit including the winding on the track magnet G and the relay Rg. Fig. 9 shows a signalling system with track magnets 13, 14, 15 at the entrance to sections 31, 32, 33 and a train 1<1> approaching section 31, while a second train 1 is in section 33. The signals stand normally at danger and are cleared as a train enters the rear section and de-energizes the relay in series with the track magnet. Thus train 1<1> on passing magnet 13 de-energizes relay 19 and opens circuit to relay 28; the armature 43 of relay 28 closes the circuit to relav 29 over the contact 26 which has been closed by the passage of train 1 past the magnet 15. Armature 40 controls the operating circuit for signal 10 which is put to danger when relay 28 is de-energized. The armature of relay 19 is replaced by the core of magnet 22 when armature 38 is dropped as the train passes magnet 14. Emergency switches 49, 50 may be provided for clearing the signals by manual operation when necessary.
Patent GB-118719-A (GB)
Title: Improvements in and relating to Piston Rings.
Inventor: CHALLIS PHILIP
IPC: F16J9/08
Filed: 1917-10-15
Abstract: 118,719. Challis, P. Oct. 15, 1917. Piston packing. -Packing for the piston or plunger of a steam-engine, internal-combustion engine, or pump consists of two split rings d, e which together from a rhombus or rhomboid and are arranged in an inclined groove in the piston so that the fluid pressure tends to expand the packing. The piston head is preferably of reduced diameter above' the packing-ring groove. The meeting surfaces of the rings d, c are preferably not parallel to the sides of the groove, so that expansion of the rings tightens them in the groove and compensates for wear. The wearing surface of the ring d may be extended, as shown, so that an obtuse-angled groove is formed on the upper surface of the ring.
Patent GB-107505-A (GB)
Title: Improvements relating to Dress Fastenings.
Inventor: GRAY GEORGE
IPC: A41F11/02
Filed: 1916-10-20
Abstract: 107,505. Gray, G. Oct. 20, 1916. Stocking-suspender g r i p s ; clips.-In a stocking-suspender clasp comprising a back plate a having a toggle-jointed securing-member d, e pivoted to it, all the parts are made of thin sheet metal.
Patent GB-542155-A (GB)
Title: Improvements in and relating to building construction
IPC: E04B2/06
Filed: 1940-10-07
Abstract: 542,155. Walls, floors &c. HALL, E. Oct. 7, 1940, No. 14955. [Class 20 (iv)] Walls, floors &c. consisting of parallel block sections a a<SP>1</SP>, have the horizontal and vertical joints in each section in alignment, but out of alignment with those in the adjoining section. Spacing devices may be adopted for hollow walls; the break in alignment is produced horizontally by using slabs at the top or bottom of one-half or one-and-a-half times the normal width. A single upright d may be used at each corner.
Patent GB-555479-A (GB)
Title: Calcium carbonate of fine particle size
IPC: C01F11/18
Filed: 1941-11-21
Abstract: 555,479. Calcium carbonate. CLARK, F. L., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Nov. 21, 1941, No. 14979. [Class 1 (iii)] [Also in Group V] Calcium carbonate of fine particle size is produced by rapidly mixing solutions of a soluble calcium compound, e.g. calcium chloride, and a carbonate of a volatile alkali, preferably ammonia, at a temperature of 10‹-50‹C. and heating the precipitate at 120‹-400‹C to remove water and other impurities. The growth of larger particles is prevented by rapidly removing the precipitate from the reaction zone. The process may be carried out by rapidly pouring the solutions one into the other and the mixture, after a short delay into a large volume of water, or by bringing jets of the solution into contact and passing the mixture into water. Precipitation may be carried out in the presence of a small addition of a protective colloid such as gelatine. Other substances may be added to the solutions before precipitation for the purpose of forming protective films on the particles, e.g. stearic acid or coconut oil for activating the product for rubber reinforcing.