baber/WOPTO huggingface dataset:
Patent GB-287096-A (GB)
Title: Improvements in or relating to quick acting reverse current electric circuit breakers
IPC: H01H71/26
Filed: 1928-03-14
Abstract: 287,096. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). March 14, 1927, [Convention date]. Automatic circuit-breakers.-In order to prevent the incorrect operation of high-speed reverse-current circuit breakers the retaining electromagnet is provided with a winding or conductor energized by or proportionally to the main current in such a direction as to strengthen the field of the retaining electromagnet with normal current flow. With the usual arrangement shown in Fig. 1 the main portion of the dux of the retaining winding 2 passes in the direction shown to retain the armature 3 in position. With a reverse current in the main current winding 3, which is mounted on an auxiliary limb of magnet 1 so that its magnetic circuit includes an air gap, the flux from this winding divides as shown, one portion assisting the flux due to the winding 2 in the upper portion of the magnet 1 and the other portion opposing the retaining flux in the path including the armature, so that the armature is released at a suitable reverse current value. If, however, a heavy forward current flows through the winding 3 the directions of the flux due to this winding in these two paths are reversed and although the armature is retained, the upper portion of the magnet may carry little. if any, resultant magnetization. If therefore at this stage the main current is interrupted, as bv the operation of a plain overload relay, the armature 4 may be inadvertently released before sufficient holding flux has been built up in the magnet 1 by the retaining winding 2. To prevent such an occurrence, according to the invention, a further winding 5 is placed on the upper portion of the magnet 1 as shown in Fig. 2 and is so arranged that it assists the retaining magnet 2 during the normal direction of current flow. The winding 5 may be in series with the main circuit or may be connected across an ohmic or inductive shunt therein, so that with forward currents the demagnetization of the upper portion of the magnet 1 is prevented and consequent incorrect release of the circuit-breaker will not occur. The winding 5 may alternatively be replaced by a single conductor carrying the main current suitably positioned relatively to the magnet 1.
Patent GB-1085570-A (GB)
Title: Improvements in portable suction cleaners
IPC: A47L5/24
Filed: 1966-02-21
Abstract: 1,085,570. Suction cleaners. LICENTIA PATENT VERWALTUNGS G.m.b.H. Feb. 21, 1966 [Feb. 19, 1965], No. 7489/66. Heading A4F. In a portable suction cleaner of the "stick" type in which an electric motor fan unit has opposite sides of its stator core of flattened form and facing respectively, the front and back of the cleaner, the fan 2 is of the radial type and its casing 15 has an axially extending space 17 downstream of the fan and of continuously reducing depth from one side of a discharge pipe connection 18 to an opening 18a leading to the latter. The discharge pipe 10 is disposed at a flattened side of the stator core 19 (Fig. 5, not shown) and connects with a pipe insert 33 extending into the dust bay 32. At the opposite side of the stator core a hand grip 21 is provided.
Patent GB-724899-A (GB)
Title: Improvements in gyro stabilised servo control systems
Inventor: SIMMONS JAMES DOUGLAS
IPC: G01C21/18
Filed: 1948-03-16
Abstract: 724,899. Gyroscopic apparatus. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. April 14, 1949 [March 16, 1948], No. 7906/48. Class 97 (3). [Also in Groups XXXV, XXXVIII and XL (c)] A torque motor 81 applies a torque to a free gyro 8, through gearing 82 said a spring 80. The motor 81 is controlled through an amplifier 84 by a signal derived from a manual control 37 and from the displacement of a pick-up 83. Precession of the gyro produces a signal from Selsyn 18, 19. Specifications 580,005, [Group XXXV], 592,208, 592,209, 698,969, 610,029, 724,896. [all in Group XXXVIII], and 724,900 are referred to.
Patent GB-589732-A (GB)
Title: Improvements in combination worm and spur gears
IPC: F16H57/03
Filed: 1945-03-29
Abstract: 589,732. Toothed gearing, SPENCE, W. L. March 29, 1945, No. 7927. Addition to 557,471. [Class 80 (i)] An improvement or modification of the invention in the parent Specification consists in staying the upper part of the bridge member c to the end or side walls of the casing a by means of arm s integral with or secured to the member c, the cover b being secured independently to the casing.
Patent GB-108154-A (GB)
Title: Improved Process and Apparatus for Casting Metals and other Substances in Moulds.
Inventor: STRAUS ELIAS
IPC: B22D18/04
Filed: 1917-06-02
Abstract: 108,154. Straus, E. July 15, 1916, [Convention date]. Casting-apparatus; processes.-Relates to the casting of material under pressure due to an explosion and consists in subjecting the material to an additional gaseous pressure, which may be constant and may act before, during, or after the explosion. The mould may be connected to a vessel containing compressed carbonic acid or other gas under the control of a valve actuated by hand or automatically by some part of the casting- machine. Fig. 1 shows a machine for casting metal. The explosive is contained in a hopper q and is supplied by the rotation of a pocketed drum n, to the explosion chamber m from which the gases pass, through the ways h, i, k, to the mould g which has been filled from the crucible b. Connected to the drum n is a valve s which controls the supply from the container through the pipe t.
Patent GB-625008-A (GB)
Title: Improved culinary or like device for indicating temperature of liquids being heated
IPC: G01K9/00
Filed: 1945-04-03
Abstract: 625,008. Temperature alarms. GEAR, A. E. April 3, 1945, No. 8183. [Class 47 (i)] A temperature alarm for liquids being heated comprises a float 1 enclosed in a jacket 6 and supporting an expanding capsule 2. The latter operates a post 4 connected at its upper end to a signal device 7, which may be a clockwork alarm, a tilting arm, or contacts in a usual or audible bell circuit. The -post may be adjustable in length.
Patent GB-571463-A (GB)
Title: Synthetic rubber-like materials
IPC: C08F22/36
Filed: 1942-06-17
Abstract: Synthetic rubber is produced by polymerizing a mixture of a compound having in an open chain the nucleus -C=C-C=C- and a cyclic imide of an olefinic decarboxylic acid in which at least one carbonyl group is conjugated with a double bond.  Suitable first components include butadiene and various methyl phenyl, furyl, chlor-, brom-, iodo-cyano-, methoxy-, and ethoxy - derivatives thereof.  Suitable second components include the imides and N-substituted imides of maleic, halogen-maleic, dimethyl maleic, phenyl maleic, citraconic, itaconic, and glutaconic acids and their substitution products; the imide group may be substituted by alkyl, cycloalkyl, aralkyl, aryl and their derivatives, many of which are listed.  The polymerization may be effected in presence of a solvent or in aqueous or other emulsion. Other polymerizable compounds may be present including styrene, methyl methacrylate, vinyl acetate, acrylonitrile and esters of maleic and fumaric acids and also film-forming materials such as natural or synthetic resins, cellulose derivatives and drying oils. The products may be halogenated or reacted with a hydrohalide acid which may be in solution, gaseous or liquid. Examples describe the emulsion polymerization of (1) chloroprene and N-n-butyl maleic imide; (2) chloroprene and N-ethyl maleic imide; (3) and (4) chloroprene and N-methyl maleic imide; (5) chloroprene and N-phenyl maleic imide; (6) chloroprene and N-cyclohexyl maleic imide; (7) chloroprene and N-b -cyanmethyl maleic imide; (8) chloroprene and maleic imide; (9) chloroprene and N-allyl maleic imide; (10) butadiene and N-cyclohexyl maleic imide.
Patent GB-670567-A (GB)
Title: Improvements relating to fluid pressure relieving apparatus
IPC: F16F9/32
Filed: 1947-03-26
Abstract: 670,567. Hydraulic shock-absorbers. CLOUDSLEY, J. L. April 26, 1948 [March 26, 1947], No. 8282/47. Class 108(iii) in a hydraulic shock-absorber of the kind in which the flow of fluid through a piston reciprocating in a cylinder, or through the base assembly of a piston and cylinder arrangement, is controlled by a valve which, when displaced from its seat, is followed up after suitable delay by the seat, the seat is caused to follow the valve by a flow of fluid from the cylinder in opposite directions along two halves of a narrow circular track from an entry port to a diametrically-opposite exit port. As shown, the inner cylinder 1a of a shock absorber fits into a flange 2 on an endcap 1 supported on bosses so as not to touch the base of an outer cylinder 1b. Holes 3, communicating with a groove 4, connect the space 1c between the cylinders 1a, 1b with the interior of the cap 1 and are normally closed by a plate 5. A valve 7 passes through the plate 5 and a central hole 6 in the cap 1 and also through apertures in Belleville washers 8, 9, the lower of which has a ground fluid-tight joint with the plate 5 and the upper of which has a similar joint with a flange 7<SP>1</SP> on the member 7. A plate 11, screwed or riveted to a spindle 12, forms a seat for the member 7 and moves to an extent limited by a washer 13 in a recess in the lower face of a member 14. The upper face of the member 14 has central recess 20 and an annular groove 21, the latter covered by a plate 22. Diametrically opposite slots 23, 24 in the plate 22 connect the recess 20 to the groove 22 and the groove to the interior of the cap 1. Lugs 25 bent down from the plate 22 into the space 20 keep the plate central. A cover 29 is held down on the plate 22 by a spring strip 27 which, by a sleeve 19 resting on lugs 17 integral with the member 14, holds the latter in place with the lower surfaces of the lugs resting in turn on a shoulder 18 in the cap 1. As the piston (not shown) moves downward, pressure in the cylinder 1a tends to collapse the Belleville washers, the fluid between them being expelled through ports 10 into the member 7. The member 7 is also forced down away from the plate 11 thus allowing flow from cylinder 1a into the space 1c. Fluid leaking through the slot 24, the groove 21 and the slot 23 and acting through ports 15 on the upper face of the plate 11 causes the latter to follow up the valve. On the return movement of the piston, fluid flows freely in the reverse direction past the plate 5 and also pushes the plate 11 back to its initial position, the plate 29 being unseated. The plate 5 may be replaced bv a third Belleville washer, in which case the washers 8, 9 may be dispensed with. The plate 11 may be guided in the cylinder 14 by a projecting stem carrying ribs which engage the interior of the member 7. Interchangeable plates 22 may be provided having ports of different sizes. Specifications 526,945 and 664.491 are referred to.
Patent GB-322537-A (GB)
Title: The manufacture and production of lacquers, filling or priming compositions and the like
IPC: C09D101/18
Filed: 1928-06-02
Abstract: 322,537. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). June 2, 1928. Divided on 322,466. Cement and adhesives comprise nitro-cellulose and soluble resinous condensation products of aromatic dibasic acids with polyhydric alcohols containing 4 to 6 hydroxyl groups per molecule. The resins may be obtained from phthalic or halogenated phthalic acids and sorbitol or pentaerythritol, or their hydroxy-alkyl ethers, such as erythritol mono-or tetra-hydroxy-ethyl ether. The compositions may also comprise soluble or insoluble colouring materials; fillers such as lithopone, ground slate, graphite, kieselguhr etc.; solvents; cellulose esters of aliphatic carboxylic acids in proportion not exceeding that of nitrocellulose; softeners; natural or artificial resins such as condensation products of cyclic ketones, of urea and formaldehyde, and of aromatic dibasic acids and polyhydric alcohols containing less than 4 hydroxyl groups in less quantity than the essential resinous constituent. Solvents specified include lower glycol monoalkyl ethers and their lower fatty acid esters, such as acetates or formates, cyclic ketones such as cyclohexanone, diacetone alcohol, methyl acetate, lower alcohols, lower alipahtic ketones such as acetone, diethyl ketone &c., dioxane or its homologues, ethyl, butyl, amyl or cyclohexyl acetates, liquid hydrocarbons, especially those of the benzene series, methylene chloride or mixtures of these materials. Specifications 317,770, [Class 2 (iii), Dyes &c.]. and 322,539, [Class 95, Paints &c.], are referred to. The Provisional Specification describes also compositions comprising nitrocellulose and resins from dibasic organic acids and polyhydric alcohols.
Patent GB-634054-A (GB)
Title: Improvements in the manufacture of shoes
IPC: A43B3/14
Filed: 1948-03-20
Abstract: 634,054. Boots and shoes. BRITISH BATA SHOE CO., Ltd., TUSA, J., and LAWRENCE, L. C. March 20, 1948, No. 8351. [Class 17 (ii)] Superposed mid-sole layers 12, 13, Fig. 3, larger all round than the outer sole are secured together, as by a line of stitching 18 inwards of the sole edge. The margin 13A of the upper layer is scalloped at 16 and has a line of holes 17 by which when upturned it may be attached by thonging 19, Fig. 1, to the shoe upper. The margin 12A of the lower layer is turned down and secured against the side edges of an outer sole secured below the lower layer 12. The layer 12 may be of crepe rubber and the layer 13 of leather, and the inner and outer portions 11A, 11 may be of crepe rubber. When a wedge heel is provided, the marginal extensions of the layers 12, 13 are increased correspondingly to cover the sides of the wedge.
Patent GB-606087-A (GB)
Title: Improvements relating to insect-repellents or insecticides
IPC: A01N25/10
Filed: 1946-03-19
Abstract: A solid insect-repellant or insecticide is composed of a naphthalene-enveloped kernel consisting of solid paraffin with which a volatile insect repellant or insecticide, e.g. oil of citronella, has been alternately mixed.  Melted paraffin wax and oil of citronella may be mixed and formed into small cylinders which are then immersed in molten naphthalene for a sufficient number of times to form a layer of the desired thickness.  Other shapes such as globules or discs may be made and the finished article may be provided with a string or hook or may be provided with one or more holes.  The Specification as open to inspection under Sect. 91 describes also the employment of paradichlorobenzene, phenol and thymol as the volatile insect repellant or insecticide.  This subject-matter does not appear in the Specification as accepted.
Patent GB-768075-A (GB)
Title: Adhesive tapes, sheets and the like
IPC: C09J7/21
Filed: 1955-03-23
Abstract: 768,075. Adhesive tape. BEIERSDORF & CO., AKT.-GES., P. March 23, 1955 [March 25, 1954], No. 8481/55. Class 140. The backing material of a pressure-sensitive adhesive tape is made of a fibrous material and is impregnated with a liquid composition comprising natural or synthetic rubber, e.g. a butadiene rubber, and a polyisocyanate (including a polythiocyanate) before coating with the pressure - sensitive adhesive. Fibrous materials specified are hemp paper, and acetate rayon and polyamide textile fabric. The liquid composition preferably does not contain solvents, i.e. the isocyanate is preferably a liquid. When using natural rubber, the rubber is preferably in a partially depolymerized form of pasty or liquid consistency. Isocyanates specified are hexamethylene and toluylene diisocyanate, pphenylene diisothiocyanate, and triphenyl methane tri-p-isocyanate. The impregnated fibrous support may be subjected to a heat treatment, e.g. to 120 C., before application of the pressure-sensitive adhesive layer. An intermediate coating comprising a polyestermodified urea-formaldehyde condensation product, optionally together with toluylene diisocyanate, may be employed. A back size coating comprising a polyester and toluylene diisocyanate may also be employed.
Patent GB-375351-A (GB)
Title: Improvements in or relating to parallel knitting machines
IPC: D04B7/04
Filed: 1931-03-19
Abstract: 375,351. Parallel knitting-machines. ACCARY, L., Renaison, Loire, France. March 19, 1931, No. 8506. Convention date, March 22, 1930. [Class 74 (ii).] The needles k are selected by the contact with abutments d formed on rotatable plate members c of a carriage f after the members have been rotated through a predetermined distance by a weaving loom type of jacquard and brought into range of the carriage. The selected members c and the corresponding needles are then actuated by the carriage as it moves to position f<1>.
Patent GB-138487-A (GB)
Title: Improvements in the construction of metal cases for containing drawers, shelves or the like
IPC: B21D53/74
Filed: 1919-04-04
Abstract: 138,487. Roneo, Ltd., and Chipperfield, W. April 4, 1919. Cabinets ; shelves. - The parts of metal cases for containing drawers, shelves, &c. are connected together by means of slots 8, Fig. 1, on one of the members, enlarged-headed tongues 7 to enter such slots on another, slots 12 on a third to prevent the tongues 7 from leaving the slots 8 when in position, and fins 14 on one or other of the first two members to fix the third member in its locking position. The example shown in Fig. 1 illustrates the connexion of a side member 2 to a base member 6, the locking-member 9 serving to give a solid and finished appearance to the joint. In this case, the fin 14 projects above a tongue 13 on the member 9 which lies on the inside of the flanged portion of the side wall, thus preventing the member 9 from being raised so as to disengage the slot 12 from the tongue 7. The tongue 7 may be formed as a separate piece which is inserted through a slot in the member 6 registering with the slot 8. In the example shown in Fig. 3 illustrating the connexion of an upright 15 to a base member 6, tongues 16 in the form of rectangular hooks are substituted for the tongues 7, the upright being moved slightly forward after insertion in the slots 17 and locked by a member 18 having two tongues 21 fitting inside the flanges of the upright and projections 22 fitting in the slots 17.
Patent GB-1061522-A (GB)
Title: Apparatus for removing dust and other impurities from air or other gases
IPC: B01D45/14
Filed: 1964-02-28
Abstract: 1,061,522. Centrifugal separators. T. B. LOFTHEIM. Feb. 28, 1964, No. 8566/64. Heading B2P. In a dust, &c. separator of the centrifugal type comprising a rotor 1 having whirl-forming separation blades 3 distributed around the axis of rotation and inclined outwardly relative to that axis from the inlet end towards the outlet end of the rotor, the spaces between the blades forming primary passages 4 communicating at the periphery of the blades with primary outlets 5 through which cleaned gas is emitted into a primary housing 10, the spaces 4 between the blades have extensions 6 bounded by plate portions 7 which extend from the inner side edges 3' of respective blades in a direction opposite to that of the rotor, and at least partly overlap each other. The plates preferably extend beyond the rear edges of the blades 3 and form outlets 9 for dustcontaining gas which project into a secondary housing 13 having an outlet (not shown) to a dust collector or secondary housing. Each plate portion 7 along its free edge may have an outwardly bent edge portion 8 which engages an adjacent plate portion on a subsequent blade thereby providing the extensions 6 with a trough-shaped configuration. The dust-laden gas is supplied through an inlet 3. Separation takes place in the spaces 4 between the blades due to rotation of the rotor and to the whirling effect induced by the blades. The clean gas discharges at 5 while the remainder of the gas and the dust are received in the extension 6 and are conveyed along same to the outlets 9.
Patent GB-196459-A (GB)
Title: A new or improved cord grip
IPC: E06B9/324
Filed: 1922-03-25
Abstract: 196,459. Lowe, H., and Yeomans, W. March 25, 1922. Clamps, pivoted-jaw.-A rocking- member 3 is pressed by a spring 8 to grip a blind or other cord passing through holes 9 in the casing 1. Projections 4 from the fulcrum, and a groove 5 between them, retains the cord. A press-button 10 is provided to release the grip, the inward movement on pressing being limited by fingers 7 on the member 3.
Patent GB-1003254-A (GB)
Title: Improvements in or relating to line output transformers for television apparatus
IPC: H01F27/28
Filed: 1962-03-07
Abstract: 1,003,254. Transformers. BLAUKPUNKTWERKE G.m.b.H. March 7, 1962 [March 9, 1961], No. 8754/62. Heading H1T. A line output transformer for a television receiver has a ferromagnetic core 1, insulating tube 3 and coil windings which are assembled from a plurality of individual sectional windings 6, connections between adjacent sections being made at 11. The sectional windings may be wound on bobbins 5 or wound with thermoplastic insulated wire and made self-supporting by heat treatment or may consist of flat conductors printed or otherwise formed in spirals on thin annular base-plates. Adjacent sections may be separated by one or more annular insulating discs which may be integral with short insulating tubes situated between the winding and the insulator tube 3.
Patent GB-694313-A (GB)
Title: Improvements in or relating to heat transfer media
Inventor: MEADOWCROFT ARTHUR EDWARD
IPC: C09K5/08
Filed: 1950-04-11
Abstract: Organic silicates containing an aliphatic radical having more than 5 carbon atoms are prepared (1) by the reaction of silicon tetrachloride with alcohols and phenols, (2) by heating a lower aliphatic orthosilicate with a higher alcohol, (3) by heating two orthosilicates to rearrange the ester groups.  Silicates mentioned are tetrahexyl, tetraheptyl, tetraoctyl, tetranonyl, tetradecyl, tetraundecyl, tetradodecyl, dioctyl diphenyl, dioctyl dicresyl, dioctyl phenyl cresyl, dinonyl diphenyl, dinonyl dicresyl, dinonyl phenyl cresyl, dinonyl diethyl, dinonyl diisopropyl, dinonyl dioctyl and didodecyl dicresyl orthosilicates.  The higher aliphatic group may be straight-chain, or branched-chain, for example 2-ethylhexan-1-yl and 3,5,5-trimethylhexan-1-yl.  In one example tetraoctyl orthosilicate is prepared by mixing tetraethyl orthosilicate with commercial octyl alcohol, heating under partial reflux to distil off the ethyl alcohol produced, and distilling the crude product under reduced pressure.  In another example, dioctyl dicresyl orthosilicate is prepared by heating a mixture of tetraoctyl orthosilicate and tetracresyl orthosilicate.