baber/WOPTO huggingface dataset:
Patent GB-1155951-A (GB)
Title: Improvements in and relating to Disc Brakes
Inventor: MARGETTS HUGH GRENVILLE
IPC: F16D55/2255
Filed: 1965-07-14
Abstract: 1,155,951. Disc brakes. GIRLING Ltd. 7 July, 1966 [14 July, 1965], No. 29772/65. Heading F2E. In a disc brake of the kind comprising a pair of pads movable towards an axially fixed disc by a piston and cylinder actuator, alternative mechanical applying means is in the form of a strut arranged to pass with clearance through an opening in the closed end of the cylinder and enter into a space sealed from an annular hydraulic chamber to be coaxially supported by the piston, a lever also being carried by the cylinder end and acting on the external end of the strut, the arrangement being such that the strut is coaxially located in the cylinder independently of the opening. In the embodiment of Fig. 1, the strut 48 passes through a fibre ring 54 in a bore of annular piston 32 to act directly on the backing plate 18 of pad 16, lever 65 acting on the external end of the strut through a ball 60 engaging the boss of a ratchet wheel 52 by which rotation of externally threaded portion 50 of the strut can be effected for adjustment purposes. The piston has an axially extending flange 38 received in a bore of a flanged closure member 36 for cylinder bore 30 of housing 11. Seals 40, 44 are provided to isolate a fluid chamber 46 from the interior of the piston in which the strut has clearance. A spring 64 effects return movement of the strut following a brake application, the piston 32 being movable independently on supply of hydraulic fluid to chamber 46. Housing 11 pivots at 12 during brake application so that both pads 16, 20 are applied. In the embodiment of Fig. 3, the front end of the piston 70 is closed and an extension piece 74 sealingly slidable in a bore of closure member 76 is retained within the piston by a ring 72. The strut engages a hemispherical surface formed within the extension piece. In both embodiments the housing may be fixed and provide a pair of cylinders each having a piston for applying a respective pad to the disc. The ratchet wheel on the externally threaded strut portion 86 may be engaged by a pawl (96, Fig. 5, not shown) which is carried by a stirrup (98) axially movable with the strut, the pawl being pivoted by co-operating with a rod (104) secured to the closure member, so that automatic wear adjustment is effected. A similar arrangement may be applied to the construction of Fig. 1.
Patent GB-632277-A (GB)
Title: Improvements in or relating to the preparation of derivatives of phenthiazine
Filed: 1947-11-08
Abstract: Phenthiazine derivatives of the formula <FORM:0632277/IV (b)/1> where n is a small integer greater than 1, R1 and R2 are H or alkyl groups, D is the residue of a heterocyclic nucleus in which there may be a second hetero atom, and wherein either of the benzene rings may contain alkyl or alkoxy groups, are prepared by reacting the phenthiazine with the compound <FORM:0632277/IV (b)/2> where X is halogen, in the presence of an acid acceptor such as sodamide and, if desired, an organic diluent such as xylene.  In examples: (1) b -piperidino-ethyl-N-phenthiazine is prepared from phenthiazine and 1-chloro-2-piperidino-ethane, and (2) b -morpholino-ethyl-N-phenthiazine from phenthiazine and 1-chloro-2-morpholino-ethane.
Patent GB-906901-A (GB)
Title: Method and means for smoothing the idling operation of a multiple cylinder 2-stroke cycle internal combustion engine, preferably a carburetor engine
IPC: F02M23/04
Filed: 1958-09-17
Abstract: 906,901. Switch contacts; electromagnetic switches. SVENSKA AEROPLAN A.B. Sept. 17, 1958 [Sept. 18, 1957], No. 29786/58. Class 38 (5). [Also in Group XXVII] A fixed guard 32, Fig. 13, prevents a spring contact 25 from sticking to a pivoted armature contact 24 as the latter moves over from where it engages the contact 25 and a fixed contact 23 to where it engages a fixed contact 31. In Fig. 14, a finger 34 mounted via an insulator 33 on the contact 24 prevents the contact 25 from sticking to the contact 23 on the above movement. The members 32, 34 may be used together.
Patent GB-190860-A (GB)
Title: Improvements in or relating to loose-leaf binders
IPC: B42F13/26
Filed: 1921-11-09
Abstract: 190,860. Wood, H. H., Davies, W. T. Wiggins-, and Davies, W. L. Wiggins-, (trading as Davidson, F.). Nov. 9, 1981. Posts, claw, and like files; attaching files to covers.-A loose-leaf binder, in which the leaves are carried on pairs of prongs, and one of each pairs of prongs is attached to a longitudinal rod having a cranked portion adapted to be engaged by a cam on an actuating member so as to open or close the prongs, has the cam portion formed integrally with the actuating member by suitably shaping this member. The prongs 2, 3 are formed integrally with rods 4, 5 respectively by bending up their ends, each of the rods having a cranked portion 9 between the prongs. The rods can rotate in bearings 7 formed by turned-up portions on a U-shaped casing 6, which is attached to the cover by tongues 8. The actuating-bar 10, Figs. 1, 3 and 4, is bent so as to form integral cam portions 13 which are adapted, when the bar is moved in one direction to engage with the cranked portions 9 of the rods 4, 5 so as to close the prongs. A spring 14 bearing on the underside of the cranked portions 9 causes the jaws to open when the cam portions 13 are moved out of engagement with the cranked portions 9. In Fig. 8 the actuating-bar 10 is rotated to close the jaws, and for this purpose is provided with a cam surface 13 formed by flattening it on one side. The spring may be. dispensed with, and the jaws opened and closed positively by arranging the cranked portions 9 of the rods 4, 5 between two actuating bars, each having integral cam portions for opening and closing the jaws.
Patent GB-979790-A (GB)
Title: Analog-to-digital converters
IPC: H03M1/00
Filed: 1961-08-18
Abstract: 979, 790. Electric selective signalling. WESTERN ELECTRIC CO. Inc. Aug. 18, 1961 [Aug.22, 1960], No. 29882/61. Heading G4H. [Also in Division H3] In an analogue-to-digital converter of the kind in which the unknown analogue signal is compared sequentially with signals equivalent to the digits in decreasing order of significance, the completion of each comparison initiates comparison in the next stage. Each stage uses two tunnel diodes 100,110 which have N-type current-voltage characteristics. A first pulse from source 127 places diode 100 at a relatively low voltage stable point and diode 110 at a relatively high voltage stable point-state 1- source 126 supplying a negative input to unit 120 for alternate pulses from 127 and -#I flowing. The subsequent application at 125 of an analogue signal to be digitized reverses the current, now +#I, and when unit 127 gives a second pulse the diodes switch so that diode 110 has a low voltage and diode 100 a high voltage-state 2-which causes unit 140 to supply a current through a binary-weighted register R to unit 120. If this current is greater than that from the analogue signal, current +#I reverses, the diodes revert to state 1, and unit 140 is turned off. This indicates that the most significant digit is "0". However, if the current is less, the state 2 is maintained and the most significant figure is a "I". As a result of the switching cycle, and by means of a transformer 115 and unit 117, a pulse is generated which triggers the next state to determine the next significant digit. The signal is wholly digitized before the next pulse from 127, which is in effect a first pulse.
Patent GB-647628-A (GB)
Title: Improvements in or relating to multiple pole automatic electric switches with magnetic and thermal tripping members
IPC: B01F29/83
Filed: 1948-11-17
Abstract: 647,628. Automatic circuit-breakers. 'SIEMENS - SCHUCKERTWERKE AKT.- GES. Nov. 17, 1948, No. 29943. [Class 38(v)] In a multi-pole automatic circuit-breaker having groups of magnetic and thermal tripping members, two transmission means, each common to one of the groups, are provided between the groups and the latch, there being an adjustable lost motion between the two transmission members so that the magnetic members can operate very rapidly on a short-circuit whilst the thermal response is delayed. A pawl 7 is normally latched by a stop 6 on a transmission member 5 common to magnets 1, which are connected in series with bimetal strips 3; and magnetic blow-out coils and the breaker contacts, Fig. 1 (not shown). The strips 3 act on a second transmission member 8 connected to member 5 through an eccentric 13 which is adjustable to set the operating currents of the strips. On a short-circuit, one or more of the plungers 2 moves down to rotate member 5 counterclockwise to release pawl 7, and with a less severe overload one or more of the strips 3 bends upwards to rotate member 8 clockwise, and, through the eccentric 13, rotate the member 5.
Patent GB-707010-A (GB)
Title: Dyeing of textile materials of cellulose esters or ethers, or of synthetic polymers
Filed: 1951-12-21
Abstract: Textile materials of cellulose esters or ethers or of a synthetic polymer are dyed with an aqueous vat prepared from a vat dye, a reducing agent, an alkali metal carbonate, an alkylolamine, and a water-miscible organic liquid swelling agent for the material. Suitable swelling agents are the monoethyl and monobutyl ethers of diethylene glycol, the monoethyl and monobutyl ethers of glycol, diacetone alcohol and triethyl phosphate and they may be used in amount corresponding to 3 to 25 per cent of the vat.  Mono-, di- and tri-ethanolamines and -propanolamines are specified as suitable alkylolamines and may comprise 0.5 to 10 per cent of the vat.  From 0.1 to 1 per cent of alkali metal carbonate may be used.  In Examples, textile materials of cellulose acetate, nylon, polyurethane, polyethyleneglycol terephthalate, polyacrylonitrile or vinyl chloride-vinyl acetate copolymer are dyed in a vat containing Ponsol Jade Green or Carbanthrene Red BN, sodium carbonate, diethanolamine, sodium hydrosulphite and butyl ether of diethyleneglycol, rinsed and oxidized in a bath containing sodium dichromate and acetic acid. Specification 622,676 is referred to.
Patent GB-484662-A (GB)
Title: Improvements in or relating to the decarbonising of carbon-containing iron or iron alloys
IPC: C21D3/04
Filed: 1936-11-04
Abstract: Iron or iron alloys having a low carbon content are produced from pig iron or an iron alloy by granulating the raw material to provide more or less spherical grains and then heating the grains to a temperature below their melting point in an atmosphere adapted to decarbonize the grains without any substantial oxidation of the iron itself.  The decarbonizing may be carried out in the presence of a suitable oxidant such as haematite or limestone which produce decarbonizing gases on heating and heated to a temperature of 750-1100 DEG  C. or by mixing the grains with iron ore and introducing a reducing gas such as hydrogen or carbon monoxide into the furnace in which the operation is carried out.  The grains may be maintained in motion during the operation, e.g. in a rotating internally-heated furnace or by causing them to move downwardly in a vertical furnace in counterflow to the hot gases.  The heating of the grains may be carried out in vacuo in an induction furnace or electrically either using the charge as a resistance, a neutral substance such as sand, lime or quartz then being added to the charge, or by using electric resistances disposed within the furnace.  The Specification as open to inspection under Sect. 91 referred to the treatment of carbon-containing metals and alloys but this subject-matter does not appear in the Specification as accepted.
Patent GB-677738-A (GB)
Title: Solutions of acrylonitrile polymers and manufacture of synthetic fibers therefrom
IPC: C08J3/09
Filed: 1949-11-23
Abstract: Acrylonitrile polymers are dissolved in a binary mixture of nitromethane and from less than 10 to 2 per cent of formamide, by volume, based on total volume of the mixture.  The polymer may be polyacrylonitrile or a copolymer of acrylonitrile with vinyl chloride, acetate or propionate, acrylic or methacrylic acids and esters, and styrene, isobutylene or a vinyl pyridine.  The solution may be extruded into air, nitrogen, steam or an alcohol to produce filaments, which may be oriented by stretching.
Patent GB-706846-A (GB)
Title: Improvements in and relating to dolls, teddy bears and the like toys
IPC: A63H3/46
Filed: 1950-12-08
Abstract: 706,846. Articulations for dolls, teddy bears and the like. POPPER, F., and POPPER, E. Dec. 10, 1951 [Dec. 8, 1950], No. 30091/50. Class 132(3) Articulations for legs for dolls and the like comprise a pipe 12 extending between body discs 10, 11 which are secured to the body at the groins, and have eccentric apertures 13, a leg disc 16 in each leg having an arcuate slot 20, an intermediate disc 17 held in frictional engagement with the leg disc and having an eccentric aperture and a rod 14 pivotally mounted within the tube and extending through the slots and apertures. Each pair of discs 16. 17 is centrally apertured at 18 and rotates on a pin 19, Fig. 1, on each of discs 10, 11. The discs 16, 17 of each pair are frictionally held together by a leaf spring 21 secured by two eyelets 22 one passing through aperture 18 and the other passing through the aperture in the disc 17 and the slot 20 in the disc 17 and the slot 20 in disc 16. Thus, when the doll is made to walk, the leg and intermediate discs move together relative to their adjacent body disc but, when the doll is made to sit down, the leg disc moves relatively to the intermediate and body discs.
Patent GB-783698-A (GB)
Title: Weft inserter for shuttleless looms
IPC: D03D49/24
Filed: 1953-10-30
Abstract: 783,698. Looms with stationary weft supply. CLAEYS, M. Oct. 30, 1953 [Oct. 30, 1952], No. 30112/53. Class 142(2) A dummy shuttle, for a loom with stationary weft supply, comprises two parts C, c assembled together to provide a longitudinal slot f into which the weft yarn extending between the fell of the cloth and the stationary supply is received and held. A stationary yarn supply is provided at each side of the loom, and a gripping and cutting device k is provided at each end of the dummy shuttle so that the weft from each supply can be engaged during beat-up and cut and held by the dummy shuttle for insertion into the shed. The devices k are operated by spring controlled feelers po that are engaged by projections B provided on the slay at each side of the loom. Upper and lower sets of rollers d, e serve to guide the dummy shuttle in its movement across the loom. The lower rollers e rest on supporting rollers mounted on a carriage that reciprocates beneath the shed.
Patent GB-453807-A (GB)
Title: Improvements in or relating to rotary pumps, compressors or the like
IPC: F04B43/12
Filed: 1935-10-31
Abstract: 453,807. Rotary pumps. APOLCZYN, B., 14, ul. Dwernickiego, Lwow, Poland. Oct. 31, 1935, No. 30135. Convention date, Nov. 3, 1934. [Class 110 (ii)] A pump or compressor of the flexiblechamber type comprises two or more, diaphragms D, D<1>, fixed at their edges and riveted to a plate C and to a cone E which is given a swash-plate motion by means of a collar F on the driving shaft H. Fluid is impelled from an inlet S, to an outlet T. The Specification as open to inspection under Sect. 91 describes a barrel which is given a gyratory motion by eccentrics through ball bearings, and which pumps fluid through a crescent shaped working chamber. The latter is bounded by an outer casing, and a flexible diaphragm riveted in the centre to the piston, and at the ends, to the casing. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1148983-A (GB)
Title: Improvements in or relating to structural bearings
Inventor: WITHAM WILLIAM ALEXANDER AUBRE
IPC: E01D19/04
Filed: 1966-07-05
Abstract: 1,148,983. Bearings. MACLELLAN RUBBER Ltd. 28 April, 1967 [5 July, 1966; 2 Sept., 1966], Nos. 30152/66 and 39212/66. Heading F2A. A rectilinear-motion bearing for a bridge, for example, has an upper member 1, Fig. 1, which is movable with a bridge-deck (not shown) and includes a resilient unit comprising a rectangular block of rubber 3 having bonded to its lower face a metal-plate 4, the lower face of which has a sheet 5 of P.T.F.E. adhered thereto; and has a lower member 2 attachable to a bridge-support (not shown) and provided with a stainless-steel plate 6 which engages the sheet 5 of P.T.F.E. of the upper member 1. The plate 4 may be perforated to facilitate bonding and is protected from the weather by projecting portions of the rubber block 3. In modifications, the stainlesssteel plate 6 on the bridge-support is replaced by a sheet of P.T.F.E.; the lower member 2 is provided with a block of rubber; resilient units 20, 21, Fig. 4, are mounted between a V-shaped channel 17 of a bridge-support 16 and a V- shaped protrusion 19 of a bridge-deck 18; a V-shaped protrusion is formed on the lower member 2 and is received in a V-shaped channel in the resilient unit of the upper member 1; and the contacting surfaces of the lower members and the resilient unit are provided with corresponding undulations which ensure that the relative movement is restricted to one longitudinal direction.
Patent GB-652257-A (GB)
Title: Improvements in or relating to apparatus for measuring the deflection of a surface
IPC: G01B13/16
Filed: 1947-11-13
Abstract: 652,257. Gauges. HIRES, CASTNER, & HARRIS, Inc. Nov. 13, 1947, No. 30207. Convention date, Nov. 23, 1946. [Class 106 (ii)] The deflection of the flexible cover or wall 21 of a food container or the like 20 is determined or compared with a standard in order to obtain a knowledge of the pressure inside the container by apparatus comprising a flexible diaphragm 12 which is applied to the wall 21 to conform to the contour thereof, and a reservoir of liquid extending from the diaphragm into a measuring column. As shown, mercury in the reservoir extends up a tube 23 into which projects a pin 36 carried by an adjustment screw 33 forming part of an electric circuit. If the degree of vacuum inside the container 20 is unsatisfactory the mercury will be forced up the tube to complete the electric circuit to ring a bell, light a lamp, or operate a machine, through solenoids or relays, to reject the container. In a modification, the tube 23 is transparent and graduated, and only a visual indication of the degree of vacuum is obtainable.
Patent GB-577671-A (GB)
Title: Improvements in the production and manufacture of high octane number blending liquids from the gases obtained in the distillation or cracking of carbonaceous materials
IPC: C07C2/00
Filed: 1938-10-19
Abstract: Gases containing unsaturated hydrocarbons are treated with sulphuric acid of 20-96 per cent in stages in counter-current, the stages being at successively increasing temperatures, the same acid being used throughout without separation of products at individual stages. After separation of liquid polymers, if any, the acid liquor is treated with up to an equal weight of water or steam and distilled, the liquid polymers being added to the distillate to produce a high octane number blending liquid.  In examples: (1) gas from the drag distillation of tarbanite is treated with sulphuric acid of 63 DEG B<\>ae at which at entry is at 65 DEG  C. and the same acid is cooled to 50 DEG  and 35 DEG  C. respectively for the earlier gas treatment stages; polymers are separated, and 0.4 volumes of water are added and the mixture distilled, the separated polymers being added to the distillate and the mixture distilled to 200 DEG  C.; (2) gas from low temperature carbonization of bituminous coal is treated with sulphuric acid of 55 DEG  B<\>ae, the temperatures being 110 DEG , 60 DEG  and 15 DEG  C., the further stages being similar to the first example, but the final distillation is to 180 DEG  C.; 15 per cent of the product added to petrol raises the octane number from 72 to 80.
Patent GB-503070-A (GB)
Title: Improvements in and relating to the manufacture of wire
IPC: B32B15/01
Filed: 1938-10-19
Abstract: 503,070. Making wire; drawing. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 19, 1938, No. 30247. Convention date, Oct. 19, 1937. [Classes 83 (ii) and 83 (iv)] A method of making wire of a relatively brittle metal comprises assembling a rod of the metal within a tube of relatively ductile metal to form therewith a composite assembly, successively drawing the assembly through a series of dies to reduce the same to a predetermined diameter and then removing the ductile metal from the embedded wire of brittle material. The method is intended more particularly for the drawing of wire of a diameter of about 0À001 inch of aluminium or similar metals or their alloys. A rod 10 of aluminium is inserted in a tube 11 of copper, Fig. 1, and the assembly is subjected to a series of alternate drawing and annealing operations until the diameter of the copper is reduced to about 0À115 inch. The annealing comprises heating the wire to a temperature of 350‹ C. for 30 minutes. Four such composite wires 14 are then assembled within another copper tube 15 and the alternate drawing and annealing operations are continued until a diameter of 0À009 inch is reached after which the copper is removed by a bath of dilute nitric acid and the fine aluminium wires are washed and dried. For the second series of drawing operations a number of uncased wires of the brittle metal may be included within the tube 15 but out of contact with each other. Specification 491,206, [Group XXI], is referred to.
Patent GB-359190-A (GB)
Title: Fastening device
IPC: F16B5/10
Filed: 1930-10-10
Abstract: 359,190. Stud - and slot fastenings. ARMSTRONG WHITWORTH AIRCRAFT, Ltd., SIR W. G., Park Side, Coventry, and WOODHAMS, H., Whitley Abbey Farm, Whitley, near Coventry. Oct. 10, 1930, No. 30350. [Class 44.] A fastening particularly for securing aeroplane cowlings to framework, shown in Fig. 1 with its parts disassembled, comprises a thimble 5 with flange 6 by which it is secured to the cowling 2 and housing a slidable and rotatable stem 8 urged outwards by a spring 9. A pin 11 with reduced ends 12 inserted in the stem has its ends 12 projecting through a pair of L-shaped guide slots 13 in the thimble. One end 15 of a slot is enlarged to allow insertion of the pin, the thicker portion 12 of which prevents removal except when the pin is at this end of the slot. In use, the stem is depressed and rotated to place the pin in the circumferential portions of the slots and parallel with the major axis of an oval or other non-circular hole 3 in the framework 4, into which the thimble is inserted. The stem is then rotated to engage the pin ends behind the edges of the hole 3, along the minor axis of the hole, in which position they register with the longitudinal portions of slots 13, the stem then being urged outwards to hold the parts together under action of spring 9. A manipulation slot 16 is provided in the stem.
Patent GB-892410-A (GB)
Title: Improvements in or relating to joint boxes for multiconductor electric cables
Inventor: WYATT FREDERICK
IPC: H04Q1/14
Filed: 1960-09-02
Abstract: 892,410. Junction boxes. STANDARD TELEPHONES & CABLES Ltd. Sept. 2, 1960, No. 30365/60. Class 38 (1). A joint box for multi-conductor cables, particularly multi-conductor telecommunication cables, comprises a main joint box 1 having, at each end, a main cable clamp and seal 3 secured thereto and a secondary terminal box 2 secured and sealed between the main joint box and one of the main cable clamps and seals. The secondary terminal box is divided into three compartments by an inner wall 30 and a terminal block 35. The latter connects certain of the cable conductors 33 contained in a secondary cable 6 to a lead-out cable (not shown). Cable 6 is clamped and sealed to wall 30 by a gland 32. Each clamp and seal 3 comprises a conical portion 18 and a lead cone 20 between which the splayed-out armouring 19 of main cable 4 is clamped, the cable conductors passing through the cone for jointing in a conventional manner at 5. Filling compound may be poured into joint box 1 through filling port 56 and into the space between wall 30 and block 35 through a further port (not shown).