baber/WOPTO huggingface dataset:
Patent GB-648575-A (GB)
Title: An improved device for expanding rubber and like constricting rings for use in emasculating and detailing lambs and other animals
IPC: A61D1/06
Filed: 1948-11-02
Abstract: 648,575. Veterinary appliances. MONTGOMERY, A. Y. Nov. 2, 1948, Nos. 28458, 28459 and 28460. Convention dates, Nov. 11, 1947, Dec. 24, 1947, and April 14, 1948. [Class 81(ii)] A device for expanding rubber constricting rings comprises two pairs of arms pivoted on a supporting element provided with a handle and actuated by a common operating element. In one embodiment a supporting element 2, on a handle 3, carries two main arms 7, near the outer ends of which smaller arms 8 are pivoted, all four arms having pins 6 on which the unstretched ring 4 is placed. A threaded operating member 19, when turned, draws an actuating member 16 downwards, whereupon links 12 press the arms 7 outwards and links 15 draw the arms 8 downwards, so stretching the ring to an approximately square shape, see Fig. 2 (not shown). The outer end of the operating member may be provided with a hook 34 or similar attachment for supporting the appliance on the person of the operator when in use and the full movement of the screw 19 may be such that the links 12 pass beyond dead centre in their lowest position, so that the arms will remain in the open position. The thread on the member 19 may be quick, to facilitate rapid release of the device, or fine, to hold the arms in any desired position. In a modification the arms are drilled to enable a supply of antiseptic or other compound to be applied to the ring when being fitted, the compound being contained in a flexible sac from which it is expelled as required by a finger-operated lever.
Patent GB-1529377-A (GB)
Title: Phase sequence discriminators
IPC: H02H11/00
Filed: 1977-07-01
Abstract: 1529377 Phase sequence discriminators DEFENCE SECRETARY OF STATE FOR 1 July 1977 [8 July 1976] 28541/76 Heading H2K A phase sequence discriminator comprises an RC circuit R 1 , R 2 , C 1 , C 2  which generates (across C 3 ) a signal greater than a predetermined threshold level only if the phase sequence is correct, and an electronic switch S connected in one of the phase conductors A and triggered into conduction via a threshold device Z when this level is exceeded.
Patent GB-535944-A (GB)
Title: Improvements in or relating to cord stretching mechanism
IPC: B29D30/44
Filed: 1939-10-25
Abstract: 535,944. Stretching yarns or cords. CLEVELAND, F. J. (Drummondville Cotton Co., Ltd.). Oct. 25, 1939, No. 28654. [Classes 120 (ii) and 120 (iii)] Yams or cords for use in reinforcing pneumatic tyres are stretched in apparatus comprising a pair of grooved sheaves around which the cord is passed mounted on separate spaced shafts rotated at different fixed speeds and a freely rotatable roller associated with each sheave for guiding the cord in a series of parallel lappings about each of the sheaves which have a series of grooves of successively increasing diameter, each groove accommodating a lapping of the cord so that the sheaves grip the lappings firmly. As shown the grooved sheaves 14, 15 are freely mounted on shafts 33, 30 and are driven by clutches 35, 32 on the shafts which are geared to shafts 82, 87 ; the shaft 82 is driven from a pulley 100 and is geared through a change gear 104 to the shaft 87 to drive the sheave-14 at a slower speed than the sheave 15. Each sheave has at least three grooves of V-shape in cross-section and the guide rollers 50, 54 are grooved to lead the cord around the grooves of the sheaves. The sheaves are slidable on the shafts 33, 30 and have grooves 44, 45 engaged by forks on a bar 60 carried by a shaft slidable in the frame, the shaft being engaged by a finger 67 against the action of a spring 65 to hold-the sheaves into driving engagement with their clutches. If the cord breaks a tension device 17, normaly engaged by the thread falls and brings a hook 24 into engagement with an oscillating catch 25 which pulls the hook, and a plate 20 to which it is pivoted, downwards and causes an arm 19 extending from the plate to move the finger 67 and allow the spring 65 to move the sheaves out of driving engagement with their clutches; at the same time the plate 20, which is pivoted on a shaft 21, moves a package-supporting bracket 20a carried thereby to lift the package P out of engagement with its driving roller.
Patent GB-1223933-A (GB)
Title: Improvements relating to vessels for use in industrial processes
Inventor: MORRISON WILLIAM FORDYCE
IPC: B01J8/00
Filed: 1968-06-17
Abstract: 1,223,933. Catalytic regenerator. AMBUCO Ltd. 15 Sept., 1969 [17 June, 1968], No. 28755/ 68. Heading B1F. In the catalytic regenerator vessel 10 shown in Fig. 1, undesired stressing of connection 12a interconnecting cyclones 11 and 12 by thermal expansion is relieved by suspending cyclone 12 indirectly by rod 19 and sleeve 22 which are connected at the bottom, rod 19 having a greater thermal coefficient of expansion than sleeve 22. In another embodiment, Fig. 4, cyclone 12 is suspended by rods 25 and 27, which are connected by lever 29 pivoted at 30, rod 25 having a greater thermal coefficient of expansion than rod 27.
Patent GB-833386-A (GB)
Title: Improvements in or relating to vacuum electric switches
IPC: H01H33/664
Filed: 1957-09-12
Abstract: 833,386. Discharge tubes. SIEMENSSCHUCKERTWERKE A. G. Sept. 12, 1957 [Sept. 29, 1956], No. 28778/57. Class 39(1). [Also in Group XXXVII] A switch having contacts 7a, 7b disposed in an evacuated container 1 is provided with an ionisation pump for removing residual gases from the housing. The pump comprises a ring anode 11 and a cylindrical cathode 12 housed within a hollow electrode 6 which carries the contact 7b. A permanent magnet 14 with a soft iron yoke 15 surrounds the electrode 6 and establishes a magnetic field perpendicular to the plane of the ring anode 11. A high direct voltage e.g. of several thousand volts, is applied between the electrode 6 and a terminal 13 of the anode 11. The resulting ionised gas molecules impinge on the cathode to which they are bound, the cathode being of titanium, tantalum or other sorptive material. The contact 7a is carried by a movable electrode 2 which is sealed to the housing by a diaphragm 3. Screens 16 prevent the formation of conducting bridges on insulating parts of the housing.
Patent GB-1008049-A (GB)
Title: Improvements in or relating to digital control system
IPC: B23Q17/00
Filed: 1964-07-13
Abstract: 1,008,049. Selective signalling. VYZKUMNY USTAV MATEMATICKYCH STROJU. July 13, 1964 [July 26, 1963], No. 28792/64. Heading G4H. A follow-up servo-loop in which incrementary pulses are produced 3a, Fig. 3, as the controlled member 1 moves, is characterized in that the coupling between the controlled member 1 and the incrementary pulse generator 3a includes a spring 6 and a brake 7 whereby after the brake is energized small movements of the controlled member 1 are still possible without generating further pulses. This is said to be useful when part of the control circuitry is also used in other coordinate directions by ensuring that loss of origin does not occur.
Patent GB-1317044-A (GB)
Title: Crystalline polyolefins and production thereof
IPC: C08F2/00
Filed: 1970-06-15
Abstract: 1317044 Titanium halides MITSUBISHI PETROCHEMICAL CO Ltd 15 June 1970 [19 June 1969] 28835/70 Heading ClA [Also in Division C3] A modified titanium compound is prepared by mill processing a halogen compound of titanium of a valence lower than the maximum valence and an α,#-unsaturated carboxylate ester. In examples, titanium trichloride is milled with methyl methacrylate, cinnamate or crotonate, or butyl or 2-ethyl hexyl acrylate.
Patent GB-1462377-A (GB)
Title: Manufacture of paper and filters therefor
IPC: B01J13/00
Filed: 1973-06-18
Abstract: 1462377 Mineral paper filler suspensions ASSOCIATED PORTLAND CEMENT MFRS Ltd 18 June 1974 [18 June 1973] 28840/73 Headings C3H and C3P A method of producing a suspension of an acid reactive mineral filler for use in paper making comprises preparing an aqueous colloidal solution of one or more hydrophilic polymers acceptable in paper making, e.g. starch, modified starch, a natural starch containing material, casein, gluten, soya bean meal or protein, or polyvinylalcohol, incorporating an effective amount of a substance which results, upon a substantial increase in pH or pCa in the precipitation or gelation of substantially the whole of the polymer or polymers, e.g. aluminium sulphate or aluminium chloride, the colloidal solution being prepared under sufficiently acid conditions that at least some of the polymer is not precipitated or gelled, and then mixing the solution with an aqueous suspension of the filler, the concentration of said filler suspension being such that the filler concentration in the final suspension is at least half of the Daniel flow point concentration of the filler when determined in water containing sufficient surfactant to deflocculate the filler particles, and the polymer content is between 2 and 25% by weight of the filler content.
Patent GB-152351-A (GB)
Title: An improved process for producing spun material resembling wool or cotton from viscose solutions
IPC: D01F2/06
Filed: 1919-11-13
Abstract: 152,351. Glanzfõden Akt.-Ges. Aug. 15, 1918, [Convention date]. Addition to 135,205. Cellulose xanthates, and processes for making filaments from. - Reducing-substances such as cane-sugar are added, to prevent oxidation of the cellulose, during the preparation of the spinning solutions of the parent Specification, and which consists of an un-ripened viscose prepared from an incompletely-hydrated alkali cellulose. The reducing-substance is most effective when added to the weak lye used for dissolving the xanthogenate. The Specification as open to inspection under Sect. 91 (3) (a) states that reducing-substances are formed after repeated re-use of the caustic alkali bath' in which the cellulose is first immersed. This subject-matter does not appear in the Specification as accepted.
Patent GB-1392350-A (GB)
Title: Device for use in open-end spinning
IPC: D01H4/40
Filed: 1972-06-21
Abstract: 1392350 Open end spinning SKF KUGELLAGERFABRIKEN GmbH 21 June 1972 [21 June 1971] 29112/72 Heading DID A stationary yarn withdrawal tube of an open end spinning device is provided with a yarn deflection zone 14, 16 either side of at least one yarn friction zone 20. The friction zone can be formed by a serrated edge. The deflection and friction zones can be formed in end pieces fitted to both ends of the tube.
Patent GB-720296-A (GB)
Title: Improvements in or relating to methods of and means for applying a reduced pressure to a web of material, for example as in the manufacture of paper
IPC: D21F1/50
Filed: 1951-12-13
Abstract: 720,296. Suction-boxes of paper-making machines &c. MATHIAS, E. A. R. Sept. 3, 1952 [Dec. 13, 1951], No. 29197/51. Class 96. A frame 20, Fig. 1, which may fit in undercut slots, is mounted on the body 10 of a suction-box of a paper-making machine, and carries a series of independent, wire - cloth - supporting rollers &c. # to 2 in. diameter, in axial alignment across the machine, and staggered in relation to adjoining rows. Bridges 30 support roller bearings, e.g. of plastic. Provision is made for adjusting the width of the suction-box opening to suit the width of the pulp web, as by handles 62 on rods 52, and movable metal bridges 42, 47 for the end rollers of each line. Alternatively, rollers 75 may be slotted and extensible as illustrated in Fig. 7, bosses 76 retaining the trunnions on the bearings, or a light spring 77 may be fitted. The bearing blocks which may be of resin-impregnated laminated fabric may be lubricated and cooled by water drawn upwardly, by the suction in the box, from a reservoir below the box. Handles 13, a baffle 15 and a suction-pipe 12 may be as illustrated in Fig. 1.
Patent GB-749920-A (GB)
Title: Improvements in reaction chambers
Inventor: WELCH DOUGLAS FRANCIS
IPC: F02K9/68
Filed: 1953-10-22
Abstract: 749,920. Generating combustion products under pressure. BRITISH THOMSONHOUSTON CO., Ltd. Oct. 22, 1954 [Oct. 22, 1953], No. 29229/53. Class 51(1). An apparatus for producing a flow of gaseous working fluid which for example may be supplied to a turbo-starter for a prime mover, e.g. a gas turbine engine, comprises an auxiliary reaction chamber 10 in which heated gases are produced by decomposition of a monofuel, the gases passing through a conduit 34 to a main reaction chamber 11 which is divided into two compartments by a perforated screen 37. The compartment into which the gases from the auxiliary chamber are led also receives a separate supply of monofuel through the orifice 16. The screen 37 becomes heated by the gases produced by decomposition of monofuel in the auxiliary chamber, and the monofuel supplied through the orifice 16 percolates through the heated screen and its decomposition is thereby promoted. The gases pass from the second compartment through two outlets 15 leading to the utilisation device. The monofuel is supplied to the auxiliary chamber 10 through a jet 22 and its decomposition is initiated by means of an electric heating element in the form of a spiral coil 24 mounted on a ceramic base 27. The gases discharge from the auxiliary chamber through a slotted baffle 35 into the conduit 34 which passes through the perforated screen 37. The screen comprises eight layers of stainless steel gauze held in a spider 38 which is mounted in a support ring 39. The auxiliary chamber is secured to the main chamber 11 by means of studs 20 which 'also secure the cover of the auxiliary chamber.
Patent GB-836964-A (GB)
Title: Improvements in and relating to reels
IPC: B65H75/14
Filed: 1958-09-12
Abstract: 836,964. Bobbins. UNITED-CARR FASTENER CORPORATION. Sept. 12, 1958 [Sept. 26, 1957], No. 29270/58. Class 120(3) [Also in Group XXVIII] In a reel comprising a drum 14 and separately formed end flanges 12 the latter are secured to the drum by rods 18 extending axially through the drum and with the ends thereof positioned in apertures in the flanges, and resilient fasteners assembled on the ends of the rods. The fasteners include means making frictional contact with the rods and means making resilient engagement with the outer faces 38 of the flanges so as to urge the inner faces of the flanges into abutting relation with the ends of the drum. As shown, the fasteners comprise a plate formed with a dished flange 20 and a central opening 18 in the base 26 of a barrel portion 28, the opening being defined by a series of inclined, resilient, rod-engaging tongues 24 of arcuate, circular form.
Patent GB-714519-A (GB)
Title: Improved linear film-forming polyamides and a process of producing same
IPC: C08G69/36
Filed: 1951-12-14
Abstract: Linear film forming polyamides are made by condensing (a) a salt or a mixture of a dicarboxylic acid and 1.4-diaminocyclohexane or a nuclear substituted derivative thereof (e.g. a halogen, alkyl or hydroxy substituted derivative); (b) a salt or a mixture of a dicarboxylic acid and another diamine; and (c) an amino-carboxylic acid.  Polyamide forming derivatives of these reactants may be used. Specified dicarboxylic acids are adipic, pimelic, azelaic, suberic, sebacic, nonane- and decane - dicarboxylic and thiodibutyric. Specified diamines other than 1-4-diaminocyclohexanes are hexa-, hepta-, octa-, nona-and deca-methylenediamines, 4.41-diamino-di-cyclo-hexylmethane, and 1.4-tetramethyleneglycol - di - (omega - amino - propyl) - ether.  Specified aminocarboxylic acids and their derivatives are epsilon-amino-caproic acid, omega - amino - heptanoic and undecanoic acids, and caprolactam.  In an example a mixture of (a) the salt of adipic acid and 1.4-diaminocyclohexane (or its 2 - methyl or - butyl derivative); (b) hexamethylene-diammonium adipate (or sebacate) and (c) epsilon - caprolactam or omega - amino - undecanoic acid is condensed.  The mixture is heated at 270-275 DEG C. in presence of adipic acid and water first at 17-18 atmospheres pressure and then at atmospheric pressure.  The polyamides are soluble in hot 80 per cent. methanol or ethanol and in a mixture of methanol, benzene and water.  The polyamides may be used for making films, threads, coatings and shaped articles.
Patent GB-932165-A (GB)
Title: Process for polymerising vinyl chloride and catalysts therefor
IPC: C08F14/06
Filed: 1960-08-25
Abstract: Vinyl chloride is polymerized in presence of a catalyst which is a physical admixture of an organometallic compound of Group IVb such as lead, and an organometallic compound of Group IA, IIB or IIIA such as lithium, zinc or aluminium.  Specified catalyst components are Lin-Bu, AlEt3 and PbEt4.
Patent GB-252994-A (GB)
Title: Improvements in or relating to spools for sewing machines
IPC: D05B91/14
Filed: 1925-11-23
Abstract: 252,994. Barth, F. F. Nov. 23, 1925. Lock stitching by hooks.-Braking springs for preventing undesired rotation of thread spools in rotary or oscillating loop-takers are secured to the spools themselves. A spring in the form of a centrally apertured domed disc is riveted at 4 to a flange of the spool. A tongue 5 on the spring is slidable in a loop 6 formed in the spool flange.
Patent GB-1193492-A (GB)
Title: Tyre Mounting and Demounting Apparatus
IPC: B60C25/132
Filed: 1967-06-27
Abstract: 1,193,492. Tyre changing. DIONYS HOFMANN G.m.b.H. 27 June, 1967 [6 July, 1966], No. 29496/67. Heading B7C. Apparatus for releasing pneumatic-tyre beads from a wheel rim 23 comprises a motor-driven rotatable chuck 2 with jaws which are expanded to grip the rim, and two breaker members 8, 9 which are moved together by a piston-cylinder assembly 14. A stop 15 engages the rim and limits the movement of the member 8. The breaker members are pivoted to links 10, 11, which are mounted on a frame 1, their weight being supported by a tension-spring 16. The chuck is fitted with a cover-plate to exclude dirt from its actuating parts. Systems of rollers, Fig. 3 (and Fig. 4, not shown) may be attached to the machine and are used to remove and replace the tyre, their rolling action reducing the risk of damage to the rim and beads.
Patent GB-890199-A (GB)
Title: Improvements in or relating to tooth brush holders and the like
IPC: A47K1/09
Filed: 1960-08-26
Abstract: 890,199. Tooth brush holders; brackets. KW1- ATKOWSKI, J. Aug. 26, 1960, No. 29512/60. Classes 52(5) and 131 [Also in Group XXV] A holder for tooth brushes comprises a housing, open at the bottom for insertion of a brush head, and resilient retaining means inside the housing to press the head against a wall of the housing. Rubber suckers 8, 9 are provided on the rear wall of the housing which is slotted at 10 for sliding engagement with a spring 11 having leaves 12, 13 which are distorted by the inserted head. Aeration apertures 21 are provided. In a modification the leaves are of reduced width and contact only the bristle-supporting part of the head which is guided into correct position by a rib on the wall of the housing.
Patent GB-303949-A (GB)
Title: Spring suspension for vehicles
IPC: B60G21/04
Filed: 1927-11-04
Abstract: 303,949. Schieferstein, G. H. Nov. 4, 1927. Springs, arrangement of; equalizing load on springs.-The resilient or spring-controlled means which support a vehicle frame are each connected to a structure or frame mounted for universal movement on the vehicle frame. As shown in Fig. 1, the springs f<1> -- f<4> are articulated at one end to the axles and at their other ends to the corners of a frames t universally jointed at 0 to the vehicle frame M. The springs are mounted in boxes k1 - - k4, secured to the frame M, so that their effective lengths, in both directions of movement, are varied. The springs may be replaced by rigid levers controlled by indiarubber or pneumatic buffers, and such buffers may be interposed between the frames t, M. The joint 0 may be eccentric with respect to the frame t. In the modification shown in Fig. 3, in which rigid levers e, e1 are used, the frame t comprises a star-shaped spring.
Patent GB-1185745-A (GB)
Title: Attachment for a Household Knife
Inventor: HERDER HELMUT
IPC: B26B11/00
Filed: 1968-06-20
Abstract: 1,185,745. Cutting spirals of vegetables. H. HERDER [trading as DIOGENES-WERK HERDER & SOHN]. 20 June, 1968 [30 Jan., 1968], No. 29550/68. Heading A4C. A device 5 for adapting a household knife for cutting curls or spirals, e.g. of root vegetables, comprises a sheath adapted to be pushed over the cutting blade 4 and consisting of a resilient clip 6 engaging round the handle member 2, and a longitudinal web or band 7 terminating in a shoe 8 which carries a guide worm 9 on to which the vegetable is screwed so as to engage the cutting edge of blade 4, the screwing movement being continued to obtain the desired result. In the embodiment shown the knife further comprises an economy peeler 3, the handle member 2 being adapted to fit either over this as shown or over the cutting blade and being locked into position by detent means 13 moulded on finger rib 11 forming part of the central body 10 of the knife.
Patent GB-1047586-A (GB)
Title: Method of producing hypersonic fluid flows
IPC: G01M9/04
Filed: 1963-07-25
Abstract: 1,047,586. Regulating fluid flow. AVIATEST G.m.b.H. July 25, 1963 [July 27, 1962],NO. 29577/63. Heading G3H. A method of producing hypersonic fluid-flow comprises the steps of providing a gas-liquid solution at elevated pressure and a sufficiently low temperature so that the vapour pressure of the liquid remains low, and then passing the solution through passages so that the pressure of the solution drops, the velocity of the solution increases and enough of the gas is desorbed to result in an homogenous mixture of the gas and liquid, in which mixture the velocity of sound is reduced by such an amount that the flow of the mixture is hypersonic. The apparatus consists of a pressure vessel, containing a pressurized solution and a discharge nozzle in which the solution pressure is reduced to the external pressure e.g. atmospheric pressure or a vacuum vessel. The pressure is maintained in the vessel by providing sufficient gas therein, by replenishing the gas or by a pump. Separation edges or grids may be positioned in the flow path to accelerate to desorption. The fluid from the nozzle may drive a vacuum pump where the nozzle discharges to a vacuum vessel. The solution may be saturated and finely divided particles may be added to the solution. The above method enables the ratio of flow velocity to the velocity of sound i.e.Mach Number, to lie in the hypersonic range.
Patent GB-404777-A (GB)
Title: Improvements in or connected with envelopes, bags, and the like
IPC: B42D15/08
Filed: 1932-10-22
Abstract: 404,777. Envelopes. HORLICK, O. P., and HARRISON, C. J., Stoke Poges Lane, Slough. Oct. 22, 1932, No. 29579. [Class 146 (ii).] In an envelope, bag, &c., having a pocket which is closed at one end by a gummed flap 14 and at the other end by a foldable, and preferably detachable strip 16 bearing advertisements &c., the part 12 is first folded over the part 10, then the strip 16 doubled up and folded over the part 10, and finally the part 11 is gummed to two edges of the part 12 enclosing the strip 16. To open, the bottom loose edge of the strip 16 appearing through the notch 13 is gripped and pulled downward.
Patent GB-1354566-A (GB)
Title: Electrostatic lens arrangements
IPC: H01J29/56
Filed: 1971-06-24
Abstract: 1354566 Electron lenses SIEMENS AG 24 June 1971 [25 June 1970] 29616/71 Heading H1D An electrostatic lens arrangement for a cathode-ray tube device comprises two coaxial cylindrical electrodes 19, 20 used as anodes and maintained at the highest positive potential in the device and a correcting ring electrode 26 arranged between two subsidiary ring electrodes 27, 28 surrounding the axis of electrodes 19, 20 the electrode 26 being maintained positive with respect to electrodes 27, 28 and shaped and positioned so as to correct abberations of the lens. The lens can be used in an electron microscope, a picture tube, a camera tube or a storage tube.