baber/WOPTO huggingface dataset:
Patent GB-449342-A (GB)
Title: Improvements in or relating to printed books
IPC: G02B27/06
Filed: 1935-02-18
Abstract: 449,342. Books. BLACKIE & SON, Ltd., 17, Stanhope Street, Glasgow, and BORN, M., 246, Hills Road, Cambridge. Feb. 18, 1935, No. 5139. Drawings to Specification. [Class 16] A printed book with the pages having unbroken margins and adapted to be read by turning the pages from right to left in the ordinary manner, has provided on the margins alongside the reading matter pictures or diagrams forming one or more mutoscopic series. The mutoscopic series may relate to the subject-matter of the book. According to the Provisional Specification the pictures or diagrams may be separately printed on slips which are gummed or otherwise attached to the pages of the book ; where there are several mutoscopic series, these are divided by index tabs ; and if the pages of the book are not sufficiently stiff, they are locally stiffened to facilitate manipulation.
Patent GB-538390-A (GB)
Title: Improvements in and relating to holders for lamps, valves and other electrical devices
IPC: H01R33/76
Filed: 1940-03-20
Abstract: 538,390. Lamp-holders ; thermionic valveholders. CARR FASTENER CO., Ltd., and WAGSTAFF, G. March 20, 1940, No. 5200. [Class 38 (i)] A holder for a lamp, valve &c. has a plate 5 with an aperture 11 to receive the cap of the lamp &c. the plate being yieldably attached to a base 6 on which the contacts 7 are mounted, so that the resilience of the plate presses the cap against the contacts. The plate is bent to a U-shape and is secured to the base by lugs 9 stamped from a mounting-plate 8, the lugs serving also to hold together the insulating plates 6 constituting the base with the contacts 7 clamped between them. The aperture 11 has notches 12 to pass bayonet pins on the cap, lips 13 to guide the pins into the notches, lugs 13a for positioning the cap, and radial grooves 14 to receive and retain the bayonet pins.
Patent GB-1129492-A (GB)
Title: A drive system for an asynchronous electric motor
IPC: H02P23/00
Filed: 1966-02-07
Abstract: 1,129,492. Automatic speed control. ALLMANNA SVENSKA ELEKTRISKA A.B. Feb. 7, 1966 [Feb. 8, 1965] No.5214/66. Heading G3R. [Also in Division H2] An induction motor driving a crane starts to lower the load when switch 40 is closed, the desired lowering speed being determined by the reference voltage at terminals 11, 12. Relay 13 is energized to close contacts 15 whereby contactor 17 is closed. Phase controller 20 ignites controlled rectifiers 1-3 for the motor to provide full driving torque. As the motor accelerates, the output voltage of tachometer generator 10 opposes the reference voltage so that the controller 20 delays the firing pulses for the controlled rectifiers to reduce the stator voltage. If the motor is over-driven by the load, the error signal is reversed so closing contactor 16 and opening contactor 17. The controller 20 operates to increase the motor voltage so that a braking torque is produced.
Patent GB-669567-A (GB)
Title: Improvements in or relating to the preparation of derivatives of cyclohexane
Inventor: CHAPMAN JOHN HAROLD
Filed: 1949-02-25
Abstract: Esters of the general formula <FORM:0669567/IV (b)/1> where Ac is an acyl radical derived from a saturated aliphatic acid AcOH containing from 2-6 carbon atoms and which may contain a normal or branched chain (excluding trialkylacetic acids). These compounds are prepared by reacting a halogeno magnesium derivative of 2 : 6 : 6-trimethyl-1-ethynylcyclohexan-1-ol having the general formula <FORM:0669567/IV (b)/2> with the anhydride of the acid AcOH where X is chlorine, bromine or iodine in the presence of an inert organic solvent.  The reaction may be effected in aliphatic ethers, e.g. diethyl ether within the temperature range -10 DEG  to 40 DEG  C. The examples describe the preparation of the acetate propionate, n-butyrate, n-valerate and caproate of 2 : 6 : 6-trimethyl-1-ethynylcyclohexanol. Specification 669,568 is referred to.
Patent GB-1255253-A (GB)
Title: Ceramic-metallic composite substrate
IPC: H01L41/39
Filed: 1969-01-31
Abstract: 1,255,253. Printed circuits. MINNESOTA MINING & MFG. CO. 31 Jan., 1969 [1 Feb., 1968], No. 5296/69. Heading H1R. A multilayer printed circuit is formed by screen printing in succession conducting paths and ceramic layers on a refractory base and firing the composite structure. A green ceramic base 10 is provided with holes 12, 14, 16 and then fired after which metal pads are formed on the underside of the base 10 around the holes by squeeging a metallic paste through a screen. Some of the metallic paste passes through the holes 12, 14, 16 to provide a connection therethrough. On the opposite side of the base a conductor pattern is screen printed as shown in Fig. 2 some of the strips connecting with the metallic paste in holes 14, 16. By choosing the paste the conductors may'be of high or low resistance. Following the screening of the conductor pattern a ceramic layer is screened on to the base 10 to cover the pattern except for square holes corresponding to metallic pads 31, 33 holes corresponding to holes 12, 14, 16 and further holes which will provide connection to strips on the base 10. The metallic pattern shown in Fig. 4 is then applied over the ceramic layer, the metallic paste penetrating through the holes in the ceramic layer to form the interconnections between conductors in the various levels thereby providing cross-overs of the conductors. In order to protect the surface of the layer of Fig. 4 and to provide a non- conducting base for metallized seal rings the insulative pattern of Fig. 5 is imposed on the top of the layer of Fig. 4 metallic rims 71, 72a, 73, 74a being provided as shown. After a preliminary heating to remove organic binders the structure is fired to sinter the metal and ceramic constituents. Nickel, gold or other metals may then be applied electrolytically or electrolessly to provide terminals. If an unfired ceramic base 10 is employed then in order to prevent deformation during the final firing stage a metal pattern is provided on the back of sheet 10 over which an insulative layer is applied to which is applied the metallic contact pads, Figs. 6, 7 (not shown).
Patent GB-397775-A (GB)
Title: Process for purifying organic acid chlorides
IPC: C07C303/44
Filed: 1933-02-21
Abstract: Organic acid chlorides containing acid impurities and sometimes some water, are purified by treating them in the liquid state with inorganic basic substances, excluding ammonia, whereby the acidic impurities react and the acid chloride then separated therefrom. According to examples, acetyl chloride, benzoyl chloride, phthalyl chloride and p-toluene sulphochloride are freed from traces of hydrochloric acid and the respective organic acid by treatment with calcium or magnesium oxides or calcium hydroxide, followed by filtration or distillation.  Copper, zinc, lead or aluminium oxides are also specified.  A mixture of o- and p-toluene sulphochlorides is treated with calcium, barium, lead, aluminium or magnesium oxide, the solids formed by the acid impurities are removed and the acid chlorides then separated by filtration.  The carbonates of the above metals and of alkali metals may also be employed, whilst inferior results are stated to be obtained with the use of alkali metal hydroxides.
Patent GB-920232-A (GB)
Title: Improvements in or relating to magnet assemblies containing ferrite permanent magnets
Inventor: HORSBURGH JAMES PRITCHARD MACD
IPC: H01F7/02
Filed: 1961-02-14
Abstract: 920,232. Permanent magnets. SWIFT LEVICK & SONS Ltd. Dec. 5, 1961 [Feb. 14, 1961], No. 5424/61. Class 35. [Also in Group XXII] A magnetic assembly of permanent magnet ferrite material in face-to-face contact with a metal plate of high permeability by which the magnetic circuit of the assembly is completed, comprises anchoring material cast into holes through the plate and continuing into coinciding recesses in the contacting face of the ferrite material. Figs. 1 and 2 show a magnet system for a loud-speaker comprising a circular mildsteel plate 1 having a cylindrical centre pole 2 attached by screw 3. A barium ferrite ring 4 surrounds the centre pole 2 leaving an annular air-gap 5. A disc-like top-plate 7 with a central aperture rests on the ring 4 to define the annular coil gap 8. The ring 4 is located on or fixed to the steel plates 1, 7 by anchoring material, i.e. Woods metal, white metal, solder, plastic cement or sulphur, cast into holes 9 and recesses 10. The recesses may be differently-shaped, Fig. 3 (not shown), and need not be in strict registry with the hole, Fig. 4 (not shown), or may extend right through the material to form rivet-like fastenings, Fig. 5 (not shown). An alternative embodiment comprises an ion pump magnet, Figs. 6, 7, 8 (not shown), formed from several layers of ferrite and using the same method of location and fixing.
Patent GB-124578-A (GB)
Title: A New or Improved Vessel for use at Sea.
Inventor: DARBY EDWIN
IPC: B63C9/06
Filed: 1918-03-28
Abstract: 124,578. Darby, E. March 28, 1918. Life-boats; hulls. -A boat or vessel adapted to be carried by large ships for life-saving or scouting at sea comprises inner and outer substantially spherical casings 1, 2 separated by an inflated space 4. The top opening 7 for passengers and luggage &c. can be closed airtight. The casings may conveniently be made of rubber cloth secured upon a. metal framework 3. The neck 8 may be closed by drawing it together by a strap 9. The vessel may be fitted with a machine gun, a periscope 12, oxygen supply, port lights 13, propellers 10 driven by hand or power, and with steering-means.
Patent GB-764787-A (GB)
Title: Improvements in or relating to automatic trailer hitches
Inventor: BYWATER JAMES EDWARD
IPC: B60D1/46
Filed: 1955-02-23
Abstract: 764,787. Vehicle couplings. FORD MOTOR CO., Ltd. Feb. 23, 1955, No. 5442/55. Class 103(5). A tractor has hydraulically movable crank arms which are connected by rods 27, 28, and links 21, 22 in substantially vertical alignment, to a hook member 10 fixed to links 13, 14, pivoted at 15 beneath the tractor, and also comprises a safety member 7 provided with a latch 38 urged by a torsional spring 8 into near engagement with a projection 9 on the member 10. The member 7 is rotatably mounted on a shaft 5 covered by a housing 4 fixed to side brackets 2, 3, so that in the coupled position with the hook raised, the latch is held a distance A below the hook to catch it if the power fails. When the hook 10 is raised from the lowered position, a surface 39 on the hook engages the latch 38 and pivots it and the member 7 against the spring 8 until the hook is in its draught position. The member 7 and latch 38 are then returned by the spring to bring the latch just below the projection 9. When the hook is to be lowered, a knob 30 and rod 29 are pushed downwardly so that the rod 29 abuts a portion 31 of the member 7 to pivot it and the latch 38 away from the hook 10. If the rods 27, 28, are to be connected to a three point linkage, then the links 21, 22 are disengaged by removing pins 25, 26 and then swivelled about ball joints 23, 24, until their upper ends engage over pins 33, 34, on the brackets 2, 3. The links are then held in this stowed position by pins 35, 36. The hook member 10 is provided with lugs 40, 41, to engage the housing 4 and prevent sideways movement, and may also be provided with a guide face 37 for the trailer hook. The part 42 of the housing prevents the hook from disengaging when coupled.
Patent GB-1451980-A (GB)
Title: Thiourea derivatives of vitamin a acid
IPC: C07C/
Filed: 1974-02-07
Abstract: 1451980 Vitamin A derivatives BASF AG 7 Feb 1974 [8 Feb 1973] 05588/74 Heading C2V The invention comprises thiourea derivatives of vitamin A acid of formula where R<SP>1</SP> is hydrogen or alkyl and R<SP>2</SP> is hydrogen, alkyl, aralkyl, cycloalkyl or substituted or unsubstituted aryl. The derivatives are obtained by reacting retinoyl isothiocyanate with an amine In examples potassium thiocyanate is reacted with vitamin A acid chloride to form retinoyl isothiocyanate which is then reacted with ethylamine and other amines.
Patent GB-1173308-A (GB)
Title: The Manufacture of Benzdiaz[1,4]Epine Derivatives
IPC: C07D243/28
Filed: 1966-11-01
Abstract: 1,173,308. Benzodiazepine derivatives preparation. F. HOFFMANN-LA ROCHE & CO. A.G. 1 Nov., 1966 [2 Nov., 1965; 9 Sept., 1966], No. 5705/68. Divided out of 1,173,304. Heading C2C. Compounds of the general formula (R<SP>1,2</SP>= optional halogen, CF 3 , NO 2 ; R<SP>3</SP>= optional C 1-7  alkyl; R<SP>4</SP> = phenyl, halophenyl, pyridyl) are prepared by treating an α-oxime of the formula (L= leaving atom or group) with a base in the presence of an inert organic solvent.
Patent GB-676522-A (GB)
Title: Improvements in or relating to stockings and method of making the same
IPC: D02G1/00
Filed: 1949-03-02
Abstract: 676,522. Crimping yarns and filaments. SCOTT & WILLIAMS, Inc. March 2, 1949 [Sept. 22, 1948], No. 5730/49. Drawings to Specification. Class 120(iii) [Also in Group VIII] A crimped monofilament or multifilament nylon yarn, used for knitting an area of crepe appearance in a stocking (see Group VIII) is produced by knitting it into a tube, heating to boarding temperature, cooling and unravelling the tube; or by running it between intermeshing teeth; or by forcing it between heated pins. Specifications 514,821, 566,507 and 662,347, [Group VIII], are referred to.
Patent GB-1362150-A (GB)
Title: Spigot and sockets pipe joints
IPC: F16L37/084
Filed: 1973-02-06
Abstract: 1362150 Pipe couplings G SEILER 6 Feb 1973 [29 May 1972] 5772/73 Heading F2G In order to provide gripping forces of the same order of magnitude for spigots 7, in spigot and socket joints for metal pipes, at the lower (Fig. 6) and upper (Fig. 7) limits of tolerance of external spigot diameter; teeth 18 and 19 are at different distances 5b from the effective pivot axis 5a of a metal retaining element 15, held in a recess in a resilient sealing ring 10. Instead of swivelling about an annular rib 5, the elements (33, Fig. 9, not shown) may swivel in a groove (27). The elements may be retained in the recesses in the sealing ring by adhesive bonding, vulcanizing or a helical spring (49, Fig. 10, not shown).
Patent GB-949168-A (GB)
Title: Tubular electrode for galvanic cells, particularly for electric accumulators
IPC: H01M4/76
Filed: 1960-02-18
Abstract: 949,168. Accumulators. VARTA A.G. Feb. 18, 1960 [Feb. 19, 1959], No. 5861/60. Drawings to Specification. Heading H1B. Tubular electrodes have a casing of turkey cloth enclosing the active material. A further layer of material is provided outside the turkey cloth and the two layers may be woven together. The turkey cloth may be formed by weaving a material incorporating heat-shrinkable threads in the material and applying heat to cause the unshrinkable threads to be drawn together.
Patent GB-549177-A (GB)
Title: Improvements in nozzle connections for hose pipes
IPC: B05B15/652
Filed: 1941-05-06
Abstract: 549,177. Nozzle connections for hose pipes. KIMBER, W. E. May 6, 1941. No. 5887. [Class 47(i.i)] A nozzle connection for a hose pipe for use in spraying plants or in fire-extinguishing comprises a short length of rubber tubing b, Fig. 1, tightly enclosed in a length of coil spring c, the end of which is lightly engaged in a threaded portion e of a brass, &c. tube dformed at its ends with ferruled d 1 , d 2  to engage, respectively, the end of the rubber tube b and the hose pipe. Finger grips may be provided near each end of the connector b, c, to facilitate bending it when desired, or, as shown, a sliding sleeve g may be mounted on the tube d and connected by a link f to an eye c 1 near the nozzle a; movement of the sleeve will cause the connector to bend, and it may be held in its bent position by the engagement of a pin in a notched slot in the sleeve g. In another construction, Fig. 4, in which a much longer tube d is used, the sleeve g is plain, and is connected by a link l to a second sleeve k, which is connected by a link n to a pivoted operating lever m serving also as a hand grip; the sleeve k is slotted and notched to engage the pin j.
Patent GB-1371623-A (GB)
Title: Apparatus for the magnetic separation of solid magnetic particles  from a fluid current
IPC: B03C1/025
Filed: 1971-03-03
Abstract: 1371623 Magnetic separators G H JONES 29, Feb 1972 [3 March 1971] 5926/71 Heading B2J Apparatus for separating solid magnetic particles from . a fluid current includes an inclined separation device 12; electro-magnets 9, 10 for producing a magnetic field transverse to the fluid flow; and means 16 for cyclically controlling the flow of feed fluid, washing fluid and scouring fluid through the device. In operation, the feed fluid is caused to flow down through the device 12, and the magnets are energised so that the magnetic particles adhere to the device; the flow is then stopped and replaced by a washing fluid flow, after which the magnets are switched off and the adherent particles are removed by scouring fluid. An outlet valve 14 controls the flow rate, and the output from the device 12 can be diverted into compartmemts of a receptacle 15 by means of a variable-position funnel 13. The device 12 is constituted by a box having a plurality of spaced apart plates arranged therein to define passageways for the fluid flow, each plate having grooves on one surface thereof (Figs. 1, 4, 5 and 9a, not shown). The plate boxes may be mounted on a rotor for movement into and out of magnetic fields produced by permanent or electro-magnets (Figs. 6 to 8, not shown).
Patent GB-684755-A (GB)
Title: Improvements in electro-magnetic signal generators
IPC: G05D3/14
Filed: 1949-03-04
Abstract: 684,755. Dynamo-electric machines. BENDIX AVIATION CORPORATION. March 4, 1949 [Aug. 17, 1948], No. 6004/49. Class 35. A machine for use as a signal generator has a single winding on one member and two windings of unequal angular span on the other member, one member being A.C. energized and a voltage proportional to displacement being induced in the winding(s) of the other member. As shown, A.C. is fed to the inner (movable) member and one stator winding embraces one pole and the other two poles. Poles may be omitted from the unwound part.
Patent GB-707241-A (GB)
Title: Improvements in the manufacture of electron-emissive electrodes for electric discharge tubes
Inventor: NAVARRE ROGER-FRANCOIS-DESIRE
IPC: H01J9/04
Filed: 1951-03-14
Abstract: 707,241. Cathode materials and processing. ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI. March 14, 1951 [March 16, 1950], No. 6120/51. Class 39(1) A method of making an electron emissive electrode comprises coating a metallic support with a mixture of barium peroxide and one or more emissive substances, and heating the coated support in the presence of a reducing agent, e.g. powdered aluminium, or in a reducing atmosphere, e.g. a gas flame, to convert the barium peroxide partly to barium monoxide and to melt the coating, at least part of the molten barium peroxide forming a binder for the emissive substance or substances. The support may be descaled of surface oxide before it is coated or the descaling may be accomplished at the same time as the coating by using excess barium peroxide. In the latter case the excess barium peroxide dissolves the surface oxides. The coating mixture may be applied dry or may be a suspension in an inactive liquid into which the support is dipped, the liquid being subsequently evaporated. The barium monoxide formed increases the thermionic emission. A numerical example is given in which a mixture of barium, strontium and calcium carbonates and barium peroxide is dry coated on to a support and the electrode heated to 750‹C in the reducing zone of a gas burner flame to melt the barium peroxide. The support may or may not be preliminarily descaled, depending on the proportion of barium peroxide used. The emissive materials may alternatively be one or more alkaline earth carbonates, nitrates or oxides. A thoriated tungsten cathode may be made by coating a tungsten support with a powdered mixture of thorium and barium peroxide and heating as above. When subsequently current is passed through the cathode to raise it to working temperature the barium oxides are volatilized. Several layers of emissive substances may be deposited by the methods described. The invention is applicable to preheated, auxiliary heated or self heated cathodes, whether directly or indirectly heated and also to cold cathodes. A prior art process using a liquid varnish as a binder which is subsequently polymerized by heating is referred to.
Patent GB-549796-A (GB)
Title: Improvements in x-ray and other high tension electrical apparatus
IPC: H05G1/02
Filed: 1941-05-12
Abstract: 549,796. Two-part couplings. MACHLETT LABORATORIES, Inc. May 12, 1941, No. 6136. Convention date, July 26, 1940. [Class 38 _(i)] The connections to a hightension device, such as an X- ray tube of the type having contacts 30 fitted at the base of a socket 15 into which is inserted a sleeve 20 mounted on the end of the supply cable 11 and carrying contacts 22 connected thereto, has the space between the socket and sleeve filled with a non-gaseous insulating medium 32 sealed within the space by a deformable gasket. The sleeve 15 is mounted in an extension 14 on the casing enclosing the tube and secured by a screw ring 18 within which fits a deformable gasket 33 of synthetic rubber or other material unaffected by the petroleum jelly or heavy oil 32 between the socket 15 and sleeve 20. The gasket is compressed beneath a flange 26 on the sleeve 20 when the clamping ring 35 is screwed down. A similar connection may be made between the cable 11 and the transformer. The invention may also be applied to a connection having interfitting grooves and ridges forming an elongated path between a coupling and a surrounding casing such as described in U.S.A. Specification 2,132,194, the grooves being filled with the non- gaseous insulating medium confined by a deformable ring laid in one of the outer grooves.
Patent GB-270452-A (GB)
Title: Improvements in tables for bedsteads
IPC: A47B23/02
Filed: 1926-03-05
Abstract: 270,452. Curtis, H. J. March 5, 1926. Folding bed-tables; desks combined with bedsteads. - A bedstead is fitted with mechanical means for moving a table along the bed and folding it up at the foot. As shown, an endless chain g passes over pulleys e, f, the pulley e being operated through bevel-gear h, j from a handle k. The table m is carried by bent uprights o, p sliding upon guide rods b, c and connected by rods r, t, respectively, the rod r being connected by a frame s to the chain g. The table top is hinged at n and the uprights are connected by hinged stays v so as to fold as shown; or the stays may be clamped by wing-nuts so as to fix the table top in a sloping position to serve as a reading-desk.
Patent GB-857690-A (GB)
Title: Improvements in the sensitization of photographic silver halide emulsions
IPC: G03C1/28
Filed: 1957-02-25
Abstract: 857,690. Supersensitized photographic emulsions. KODAK Ltd. Feb. 25, 1957 [Feb. 23, 1956], No. 6177/57. Drawings to Specification. Class 98(2) A photographic silver halide emulsion is supersensitized with a combination of a dicarbocyanine dye and hydromelonic acid or cyameluric acid or the alkali metal, ammonium or amine salts of such acids. The dicarbocyanine dye may have the general formula wherein R and R1 are alkyl or substituted alkyl groups, n is 1 or 2, X is an anion, Z completes a 5- or 6-membered heterocyclic nucleus and Z1 completes a benzthiazole, naphthathiazole, benzoxazole, naphthoxazole, benzselenazole or naphthasebenazole nucleus. Alternatively, the dicarbocyanine dyes employed in Specification 852,068 may be used. Specification 581,772 also is referred to.