baber/WOPTO huggingface dataset:
Patent GB-790242-A (GB)
Title: Improvements relating to radio frequency dielectric heating equipment
Inventor: STANLEY EDMUND CHRISTOPHER
IPC: B29C65/04
Filed: 1955-05-31
Abstract: 790,242. Dielectric heating. RADIO HEATERS, Ltd. June 15, 1956 [May 31, 1955], No. 15621/55. Class 39(3) High frequency dielectric heating equipment for welding plastic sheet material comprises an electrode 1 mounted on an insulating block 2 secured to a plunger 4 which is adjustably mounted on a block 6. The block 6 is pivoted to a beam 9 which is itself pivoted at 10, an operating device, e.g. a foot pedal or pneumatic ram, being connected at 11 to the beam for movement of the electrode 1 towards or away from the work table. The downward movement of the electrode is limited by a stop member in the form of a cam which is adjustable by a handle 14 provided with a graduated disc 15 for setting the cam to a pre-determined position. When the electrode 1 has been replaced by another of different thickness, a plastic pattern pieces are placed on the work table, the plunger 4 of the latter electrode is freed and the electrode allowed to rest on the plastic pieces. After turning the cam and graduated disc to a reference point corresponding to the angular position of the cam which gives the highest limiting position for the beam 9, the beam is pivoted such that it rests on the cam and the plunger 4 is clamped to the block 6, the downward movement of the electrode now being limited to the point where it just reaches the surface of the work material. If no limit is to be set on the extent to which the electrode will sink through the material during the weld, the cam is turned to the position which gives the lowest limiting position for the beam. If a limit is to be set to the depth of the sink, the cam is set to an appropriate intermediate position.
Patent GB-572207-A (GB)
Title: Improvements in or relating to electrically operated winding means for spring-actuated clocks
IPC: G04C1/06
Filed: 1943-09-25
Abstract: 572,207. Clocks. ROSENFELD, P. W. Sept. 25, 1943, No. 15749. [Class 139] The invention relates to electric winding apparatus for spring-actuated clocks or electric winding attachment therefor. As the spring of the clock unwinds the winding member 11, Fig. 3, fixed on the arbor of the spring is rotated while the winding wheel 10 is .kept stationary. When a finger 114 on an arm 113 contacts with one of the two studs 105, Fig. 1, on a wheel disc 101 an electric motor 5 is energized to rotate wheel 10 and so member 11 in a counter-clockwise direction thereby turning the spring arbor to wind the spring. When a roller 116 running on a cam surface 12 causes the arm 113 to rook and disengage the finger 114 from the stud 105 the motor circuit is broken and winding ceases. The clock spring again unwinds until the finger 114 on the arm 113, which has been brought back to the perpendicular position by the spring-pressed pin 118, Fig. 3, engages with the second stud 105 whereupon winding again takes place. The member 11 is so constructed that the arm 113 can be brought into axial alignment with the portion 112 in order to wind the clock manually.
Patent GB-164748-A (GB)
Title: Improvements relating to reflectors for use on motor vehicles and the like and for analogous purposes
IPC: B60R1/06
Filed: 1921-06-08
Abstract: 164,748. Denoux, R. June 15, 1920, [Convention date]. Look-out reflectors fitted to.-A mirror for a motor-car is supported at its centre of gravity by a bracket which is secured to a wind-screen, &c. by converging gripping jaws. The convex mirror 1. Fig. 1, is provided with a recessed back 2 which carries a ball 5 as shown in detail in Fig. 2. The ball is held frictionally by a spring in the bracket arm. The screw-adjusted gripping- jaws 12, 13 are inclined so as to force the base 11 on to the support.
Patent GB-612393-A (GB)
Title: Bending or forming presses
IPC: B21D5/02
Filed: 1946-05-24
Abstract: 612,393. Metal-working presses. SEDGWICK, C. H., and SEDGWICK, E. B. May 24, 1946, No. 15856. [Class 83 (iv)] A bending or forming press comprises a power operated upper beam and lower beam carried on relatively movable wedges for adjustment of the initial setting between the beams, the wedges being mounted in rockers with arcuate surfaces to compensate for misalignment between the wedges and the lower beam under load. The lower beam 3 has feet 4, 5 resting on wedges 6, 7 having horizontal lower faces resting on gun-metal rockers 8, 9 having arcuate lower surfaces which rest on corresponding arcuate mountings. A screw 10 having left and right hand threaded portions engages nuts 14, 15 secured to the wedges by locking pegs so that the wedges may be moved together or apart by turning the shaft in either direction by a motor 11 or by a handwheel. In order initially to adjust the beam the locking pegs may be removed and the nuts turned on the screw. One of the wedges carries means for operating an indicator showing the height setting of the lower beam.
Patent GB-591096-A (GB)
Title: Improvements in heat exchangers
IPC: F01P7/10
Filed: 1941-12-09
Abstract: 591,096. Cooling radiators for motor vehicles. MICAL, C. Dec. 9, 1941, No. 15868. Convention date, Nov. 15, 1940 [Class 64 (iii)] A heat exchanger, more particularly a radiator for vehicles, comprises a plurality of tubes having an inlet 2 for warm liquid and an outlet 3 for cooled liquid, mounted inside a thermally insulated box 4 which in turn is mounted in a shell 5 whose walls are similarly insulated. Air enters by a scoop 16 and flows via a conduit 15 past a throttle 8, which is actuated manually or automatically at 9, and between the tubes to an outlet 19, excess air being bye-passed through conduit 6. Additional gaseous fluid is obtained from the device 13, e.g., an air blower, and mixed with the air entering by the scoop 16. If the temperature of the liquid varies, the volume of cooling fluid can be adjusted at 9, and the volume of liquid varied by means of a valve 24 on the liquid bye-pass pipe 23. Cold and warm air are mixed in a box 21 for heating purposes.
Patent GB-752505-A (GB)
Title: Steroids
IPC: C07J1/00
Filed: 1954-05-28
Abstract: The invention comprises 11a , 17b -dihydroxy-17a  - methyletiocholan - 3 - one and 11a -acyl esters thereof, and their preparation by hydrogenating 11a  - hydroxy - 17a  - methyltestosterone with hydrogen in the presence of a palladium catalyst and optionally treating the thus obtained 11a , 17b -dihydroxy-17a -methyletiocholan-3-one with an acylating agent.  The catalyst may be supported on the carbonate, oxide or a mixture of the carbonate and oxide of a Group 2B element of the Periodic table.  Examples disclose the production of 11a , 17b -dihydroxy - 17a  - methyletiocholan - 3 - one and the 11a -formyloxy-, -acetoxy-, -propionoxy-, -(b -cyclopentyl)-propionyloxy-, -benzoyloxy- and -salicyloyloxy-esters thereof.  Other representative esters derived from 1 to 8 carbon atom carboxylic acids are mentioned. Specification 724,149 is referred to.ALSO:A palladium catalyst is supported on a carbonate-zinc oxide moisture or on cadmium carbonate.
Patent GB-446793-A (GB)
Title: Improvements in or relating to processes for producing intaglio printing surfaces
IPC: B41N3/00
Filed: 1935-06-01
Abstract: 446,793. Printing - surfaces. SOC. ANON. DE PUBLICATIONS PERIODIQUES (IMPRIMERIE E. DESFOSSES), 17, Rue Fondary, Paris. June 1, 1935, No. 16002. Convention date, Sept. 13, 1934. [Class 100 (ii)] Electrotype; etching.-A process for obtaining deep intaglio printing-surfaces consists in etching or otherwise engraving the design in the surface in any usual way, filling the depressed portions with a resist, applying a metal layer electrolytically to the unengraved parts of the surface, and then removing the resist. The depressions may then be further deepened by etching. A copper plate or cylinder provided with an intaglio design in any suitable manner is, after filling the intaglio portions with amyl acetate varnish, coated electrolytically with chromium. The varnish is then removed and the depressions deepened by etching with perchloride of iron, or by making the plate or cylinder the anode in an electrolyte of copper sulphate using a tension of less than four volts. The chromium may be covered with a fatty ink resist prior to the electrolytic etching. Instead of chromium a number of layers of different metals may be deposited.
Patent GB-1135824-A (GB)
Title: Stationary swift
IPC: D06B5/20
Filed: 1966-04-12
Abstract: 1,135,824. Skein winding, stationary swift, stop motion. DOBBIE INDUSTRIES Ltd. 12 April, 1966 [18 May, 1965; 6 Jan., 1966], No. 16028/66. Heading D1J. The subject matter of this Specification is the same as that in Specification 1,135,825 but the claims relate to the stationary swift.
Patent GB-1255310-A (GB)
Title: Production of filled polymers
IPC: C08L67/00
Filed: 1968-12-13
Abstract: 1,255,310. Polymer compositions. CHAMPION PAPER CO. Ltd. 13 Dec., 1968 [1 Feb., 1968], No. 16048/71. Divided out of 1,246,850. Heading C3P. Fillers and reinforcing agents are incorporated in polymers by contacting hydroxyl-group containing fillers and reinforcing agents with thermoplastic polymers having labile atoms which provide sites for the formation of free radicals in the presence of an ethylenically unsaturated carboxylic acid or anhydride under free radical generating conditions whereby the thermoplastic polymer is chemically bonded to and coated on the particles of filler or reinforcing agent, and admixing the coated particles with a thermoplastic polymer. The polymer may be an olefin polymer or copolymer, e.g. with vinyl acetate, an acrylic polymer, a styrene polymer, vinyl resin, conjugated diene polymer, polyalkylene oxide, polyester, polyalkylene imine, polyamide, sulphone resin, aldehyde resin, polyurethane, epoxy resin or silicone resin. The unsaturated acid may be maleic, fumaric, citraconic, itaconic, acrylic or methacrylic acid or maleic anhydride. The filler may be clay, sand, glass or metal. The free radicals may be generated by a peroxide, e.g. dicumyl, methyl ethyl ketone, benzoyl or di-t-butyl peroxides or 2,5 - dimethyl - 2,5 - di(t - butylperoxy)hexane. The polymer used to treat the filler may be the same as or different from that in which the filler is incorporated. In an example clay is mixed with polyethylene in the presence of dicumyl peroxide and maleic anhydride, and the product incorporated in further polyethylene and moulded into films.
Patent GB-183663-A (GB)
Title: Improvements in needle cylinders for knitting machines
IPC: D04B15/00
Filed: 1921-06-10
Abstract: 183,663. Marks, E. C. R., (Acme Knitting Machine & Needle Co.). June 10, 1021. Needle - beds. - A built-up needle cylinder comprises a body part 2 having a broad peripheral groove 3 with an undercut upper edge 5 and a flange 6 near the lower edge, which is milled to provide a series of slots extending to the bottom of the groove 3, the edge 5 being notched at 8 during this operation. Parallelsided spacing-bars 10 are placed in the slots to form the bottom parts of the needle tricks and other bars 12, wedge-shaped in cross-section, are inserted between the bars 10 to form the parallel sides of the needle tricks and are retained in place by a sectional ring 15 and screws 16.
Patent GB-638051-A (GB)
Title: A new or improved method of and means for insulating heated tanks
IPC: F24H9/02
Filed: 1948-06-15
Abstract: 638,051. Insulating heated tanks. REYNOLDS, F. A. June 15, 1948, No. 16050. [Class 64(i)] A heat-insulating shell enclosing a heated metal tank a comprises tongued and grooved bricks or blocks e, f, g assembled without jointing material and made of such material, e.g. a mixture of vermiculite. sand and cement, that they can be cut with: a saw or the like to provide openings such as m. Each brick, may have a tongue on one edge and a groove on the oppositeedge, as shown, or a tongue or groove on each of its four edges. The upper edges of the walls are finished off with covering bricks h which are stepped on their lower faces and may be chamfered or rounded on one upper edge. T-shaped blocks may be used in building partition walls between two adjacent tanks.
Patent GB-672257-A (GB)
Title: Improvements in episcopes
IPC: G03B21/06
Filed: 1949-06-16
Abstract: 672,257. Optical projection apparatus. ANDREOLI, G. June 16, 1949 [March 22, 1949], No. 16088/49. Class 97 (i). An episcope contains a duct through which air is forced by a blower and directed by guiding plates on to an original situated in the duct, the latter being apertured for the passage of light reflected from the original and being light trapped at its ends. In the form shown, partly broken away, the casing 1 carries, at the front, the projection lens 10, through which light is reflected by the mirror 8. The air duct occupies the lower part of the casing and is bounded by a partition 4 which is mainly flat and horizontal but sweeps upwardly at the rear to form a mouth into which an electricallydriven fan 13 forces air drawn in through slots 15. The air emerges through slots 21. The slots are formed between baffle-plates which also act as the light traps. The original 3 is inserted through slots 2. The air duct also contains the lamps 11, their reflectors 17, with cooling fins 18, heat filters 19 and heat conducting plates 20 connecting the reflectors to the casing. The casing is apertured at the bottom so that it can be placed on an original too large for the slots 2.
Patent GB-1533174-A (GB)
Title: Cationic structured-particle latexes and the preparation thereof
IPC: C08F291/00
Filed: 1976-04-21
Abstract: 1533174 Cationic polymer dispersions DOW CHEMICAL CO 21 April 1976 [21 April 1975 (2)] 16117/76 Headings C3L and C3P Aqueous colloidal dispersions of cationic structured particles of polymer consisting of a non-ionic organic polymer core encapsulated by a thin layer of water-insoluble organic copolymer of (a) an unsaturated non-ionic monomer free from activated halogen and (b) an unsaturated nonionic activated halogen-containing monomer, and having pH indpendent cationic groups chemically bound to the copolymer at or near the particle surface, may be prepared by reacting a latex of copolymer particles having activated halogen bound to a thin layer of the copolymer at or near the particle surface with a water-stable non-ionic nucleophile capable of diffusing through aqueous media whereby pH independent cationic groups are chemically bound to the particles at or near the particle surface. The active halogen containing polymer may be derived from unsaturated benzylic chlorides and bromides and unsaturated aliphatic bromides and iodides. The nucleophile may be a monobasic aromatic amine, tetraalkyl thiourea, t-amine or t-phosphine. Sulphonium groups may be oxidized, e.g. with hydrogen peroxide to sulphoxonium groups. Examples describe the reaction of dispersions of structured particles of copolymers of ethyl acrylate/methyl methacrylate/vinyl benzyl chloride (VBC), butadiene / styrene / butyl acrylate / VBC, butadiene / styrene / hydroxyethyl acrylate / VBC, styrene / butadiene/ VBC, styrene / butyl acrylate / 2 - bromoethyl methacrylate, styrene / butyl acrylate / 2 - chloromethylbutadiene and methyl methacrylate / butyl acrylate / vinyl bromide with trimethylamine, triethylamine, pyridine, tetramethylthiourea, dimethyl sulphide, ethylthioethanol and triphenylphosphine, and (XXIII) oxidation of sulphonium groups to sulphoxonium with hydrogen peroxide. The dispersions may be used for coating.
Patent GB-328478-A (GB)
Title: Improvements in pneumatic-pressure water supply systems
IPC: E03B5/02
Filed: 1929-05-25
Abstract: 328,478. Drysdale & Co., Ltd., and Young, J. May 25, 1929. Storing and supplying water under gas pressure.-In a water supply system in which water is forced into a tank containing air under pressure, from which it is then delivered as required, the driving of the pump being controlled automatically by the pressure in the tank, an air compressor and receiver are provided and connected to the tank, a pressure-limit valve admitting air to the tank only when the pressure falls below a given limit and a float valve permitting such admission only when the water level in the tank is above a given limit. As shown, pumps b, 2, supply fresh water and sea water respectively through non-return valves j, 7, to tanks f, 8, from which delivery is effected through pipes g, 9. The pumps are controlled automatically by the pressure in the respective tanks. An air compressor h delivers to a receiver k and is driven by a motor x controlled by the pressure in the receiver. Pipes m, n connect the receiver k with the tanks f, 8, float valves w allowing passage of air only when the water level is above a given height and pressure-limit valves v allowing such flow only when the pressure in the tanks falls below a given value, preferably that which effects shutting-off of the pumps b, 2. Air from the receiver k may be supplied for other purposes. In a modification, the motor x is omitted, the air compressor being driven through gearing from the pump b. Both systems, may be used for either fresh or salt water supply, and additional systems may be provided all supplied with air from one receiver.
Patent GB-713821-A (GB)
Title: Device for measuring the regularity of the characteristic impedance of telecommunication cables
IPC: G01R31/11
Filed: 1952-06-27
Abstract: 713,821. Electric pulse-echo testing systems. COMPAGNIE GENERALE D'ELECTRICITE. June 27, 1952 [June 28, 1951], No. 16224/52. Class 40 (7). [Also in Group XXXVI] In a D.C. pulse-echo system for testing transmission cables, the pulse duration is greater than the echo time corresponding to the length of the cable. As shown the sinusoidal output from an oscillator 11 is squared at 12 and applied to a hybrid transformer 2, one secondary 3 being connected to the cable 13 under test and the other 4 being connected to a balancing network 5 of impedance equal to that of the cable when free from faults, a similar network 8 being connected to the end of the cable. Any unbalance voltage across the transformer 2 resulting from impedance irregularities in the cable 13 is amplified at 6 and applied to the Y plates of a cathode-ray tube 7 whose time base generator 10 is synchronized with oscillator 11 so that the trace on the tube, Fig. 5 (not shown), indicates quantitatively the impedance variation along the cable. The positive and negative portions of the square wave output from 12 may be of unequal duration and the trace is blanked out during the negative portions by a blanking waveform, Fig. 4 (not shown), from generator 9 coupled to oscillator 11.
Patent GB-1122340-A (GB)
Title: Improvements in or relating to resilient ball joints
IPC: F16C11/08
Filed: 1967-04-10
Abstract: 1,122,340. Ball joint. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. 10 April, 1967 [3 May, 1966], No. 16313/67. Heading E2F. A ball joint, comprising a tubular casing in which a cylindrical guide bolt made of plastics material is disposed slidably therein and is held in a central position by means of two co-axially disposed compression springs 7 disposed in blind bore 6, said guide bolt 4 having a spherical recess 5 to receive the ball 8a of a ball pin 8, comprises a casing 1 composed of two identical hollow cylindrical parts of drawn sheet metal, 1a, 1b wherein the hollow cylindrical cross section of the two sheet metal parts and also the cylindrical guide bolt received by said parts have flattened surfaces 2b, 2a and 4a (Fig. 2, not shown) on their sides adjacent to the outlet of the ball pin. Advantageously, each drawn metal sheet is in the form of a cylindrical hollow body closed at one end and provided at the other end with a flange-like projection 3a, 3b for joining the two parts together, preferably by projection welding. The outlet aperture 9 may be covered by an elastic ring seal 10, preferably made of foamed plastics material.
Patent GB-872913-A (GB)
Title: Improvements in or relating to x-ray examination apparatus
IPC: H05G1/28
Filed: 1960-05-09
Abstract: 872,913. Indicating radiation dosage. SIEMENS-REINIGER-WERKE A. G. May 9, 1960 [May 9, 1959], No. 16366/60. Class 98(1) In an apparatus for measuring the radiation dosage received by a patient 8, the X-ray tube 1 is contained in a housing 5, an ionisation chamber 6 is mounted on the housing, and a diaphragm having adjustable plates 2, 3 is provided between the tube and the chamber. The flat chamber 6 has an effective measuring surface at least as large as the maximum aperture of the plate 3. A condenser circuit (Fig. 2, not shown) operates a step-by-step switch mechanism which may control display marks on the fluorescent screen 9, so that these marks indicate the dosage being received by the patient. Alternatively, this mechanism may record the information on a card. By introducing into the circuit a variable potentiometer setting dependent on the loading of the X-ray tube, the radiation energy supplied to the body of the patient can be indicated.
Patent GB-131777-A (GB)
Title: Automatic Safety Guard for Machines with a Revolving Spindle.
Inventor: COLLINSON JOHN
IPC: F16P3/00
Filed: 1918-10-09
Abstract: 131,777. Collinson, J. Oct. 9, 1918. Guards, controlling.-In a machine with a revolving spindle, as a milling-machine, the cutter guard is so arranged that if not in the protecting position when the machine is started it is brought to and maintained in this position. The guards A of usual construction are attached to spindles B journaled in brackets D carried by a clip C or other means. On the end of each spindle is a drum E, the drums being coupled by flexible strips F or other means so that they rotate together in opposite directions. A spring G maintains the guards either in the raised or lowered positions. Pivoted pawls H on the drums are adapted to be engaged by a striker K attached to the cutter spindle L. Should the guards not be lowered before the machine is started, the striker K hits one or other of the parts H and moves the guards downwards over the dead centre, the spring G completing the movement.
Patent GB-183103-A (GB)
Title: Improvements in offset platen printing presses
IPC: B41F1/40
Filed: 1921-04-11
Abstract: 183,103. Grosse, E. April 11, 1921. Offset platen machines; inking-apparatus; tripping-arrangements.-Relates to platen printing-presses of the kind adapted for offset as well as direct printing and comprising a number of beds, one of which co-operates with the platen for producing impressions transferred to this bed from another bed by means of a transfer roller, and consists in arranging the type bed and the transfer bed at an angle to one, another at opposite sides of an ink-distributing roller, means being provided for reciprocating the inking-rollers over the type bed, and the transfer roller over both beds, and also for lifting the transfer roller clear of the beds during its return movement. The type bed 13 is inked by rollers 5, and the impression is transferred therefrom by a transfer roller 6 to the bed 14 co-operating with the platen 11. The rollers 5 receive ink from a roller 67 at the angle between the two beds and also from other rollers 34 receiving ink from a drum 35, which also supplies the roller 67 by means of an intermediate roller 81 and an endless apron 82. The inking- roller carriage 70 is reciprocated over the bed 13 by means of a bell-crank lever 62, link 60, and crank-pin 69 on a gear 68 engaging a mutilated gear 80, so that the carriage dwells at each end of its stroke. The transfer roller 6 is reciprocated over both beds by a bell-crank 65, link 63, and crank-pin 79 on a gear 71 driven by a gear-wheel 38. Stops 73, 74 coact with wedges 72 supporting the bearings of the transfer roller, to lift it away from the beds during its return stroke and to move it into contact therewith for the down stroke. When used for direct printing, the forme is arranged on the bed 14, and the bed 13 may be used as an ink table, the transfer roller being replaced by an inking-roller.