baber/WOPTO huggingface dataset:
Patent GB-1063442-A (GB)
Title: Reflected-wave identifying system and method
IPC: G01S17/74
Filed: 1964-03-11
Abstract: 1,063,442. Track apparatus. L. J. CHU. March 11, 1964 [May 1, 1963], No. 10330/64. Heading B7N. [Also in Division G4] A code plate to be mounted on a railway vehicle to identify the vehicle comprises planar reflectors (6, 8, 10, 14, 16, Fig. 1, not shown) adapted to receive and reflect radiant energy, the reflectors being of two sorts, set respectively in planes which intersect and which are at equal and opposite angles (about 30 degrees) to a common plane, there being one or more detectors (20, 20<SP>1</SP>) adapted to receive energy from a reflector along a line in the plane of the other sort of reflector. The reflectors receive infra-red light from a lamp (18) which is flashed as the vehicle passes a reading station at the correct instants to sense the successive reflectors. The detectors (20 and 20<SP>1</SP>) give " 1 " and " 0 " signals respectively. The synchronizer (30) which produces trigger pulses for lamp (18) measures the speed of the vehicle from a lead-in portion of the code plate consisting of four reflectors having values " 1," " 0," " 1 " and " 0." During the interval between the trailing edge of the first " 1 " signal and the trailing edge of the second " 1 " fast clock pulses are entered into a counter. This distance is twice the pitch of the reflector plates. The value reached by the counter is transferred to a store with a shift of one place so that the value is halved, giving a number corresponding to the pitch of the reflector plates. This value is then counted down to zero and at zero a pulse is emitted to flash the lamp (18). At the same time the value in the counter is again transferred to the store and counting down begins again. The fourth plate of the lead-in portion has a width half again that of the other plates so that the flash pulses coincide with the middle of subsequent reflectors. The lamp is triggered to sense the lead-in portion of the code plate by an inductive device which responds to the presence of a wheel of the vehicle.
Patent GB-550570-A (GB)
Title: Facsimile scanning system
IPC: H04N1/029
Filed: 1941-08-15
Abstract: 550,570. Facsimile scanning heads; photoelectric cells. FINCH TELECOMMUNICATIONS, Inc. Aug. 15, 1941, No. 10401. Convention date, Aug. 16, 1940. [Classes 39 (i) and 40 (iii)] A photo-electric scanning head for a facsimile transmitter comprises a tube 25, 41, carrying a lens system 30 for concentrating a light beam on the surface of a sheet 21 to be scanned, 'a light shield 42 fixed to and surrounding the tube 41 and fitting close against the sheet 21, and a flat circular photo-sensitive disc fixed inside the shield in front of the bus system and close to the sheet and having a central circular aperture 85 through which the light beam passes from the lens system to the sheet so that the light scattered and reflected by the sheet impinges on the whole area of the photo-sensitive disc. The photo-sensitive disc comprises a metal disc 61 preferably of iron coated with a layer 62 of photo-sensitive substance and clamped against an annular metal backing 60 by means of a conducting ring 65 and insulating rings 70, 71, all secured within an annular channel-shaped conducting member 64, forming a detachable unit secured in the shield 42 by a screw ring 50. The ring 65 is connected to a lead 93, and the second lead 90 is connected by a screw 91 to the shield 42. Specification 512,546, [Group XXXVIII], is referred to. The Specification as open to inspection under Sect. 91 describes also arrangements in which a photo-electric cell is situated in the shield. In one form, the cell is of usual construction but with a hole in its cathode plate for the passage of the light beam from the lens system to the sheet. In another form, the cell has a circular shape around a central space for the passage of the light beam. This subject-matter does not appear in the Specification as accepted.
Patent GB-457446-A (GB)
Title: Improvements in or relating to electrical fittings
IPC: F21V21/02
Filed: 1936-05-04
Abstract: 457,446. Two-part couplings. LANGE, C. G., 15, Prout Grove, Neasden, London. May 4, 1936, No. 10436/35. [Class 38 (i)] A readily detachable wall mounting for a lamp, switch, or other fitting comprises a foundation 8, Fig. 2, having a recess 13 at its rear into which project contact pins 12 connected to the lamp &c. On the wall are mounted sockets 4, Fig. 1, connected to the supply and separated by a partition 7, the sockets standing out from the wall sufficiently to receive the pins 12 when the foundation 8 is applied to the wall surface. The foundation is secured by screws passing through bosses 15, access to the screws being given by removal of the arm 10 from the foundation 8.
Patent GB-619870-A (GB)
Title: Process for the manufacture of aqueous dispersions of polymers of substances capable of polymerisation
IPC: C08F2/16
Filed: 1946-04-04
Abstract: In the polymerization of polymerizable substances in aqueous emulsion, fresh quantities of monomer, at a concentration higher than the monomer concentration in the emulsion, are added such that the monomer concentration is kept higher than that below which the rate of polymerization is dependent on it.  The polymerization may be carried out by the batch or continuous method and is stopped before the polymer concentration reaches the deposition value.  At the beginning of the polymerization the monomer concentration may be low, provided it is brought above the minimum limit as soon as possible after polymerization has begun. Preferably, the quantities of monomer added during the polymerization are high compared with that present at the outset. The process is also applicable to mixtures of polymerizable substances, the addition of fresh monomers preferably being in the same ratio as that in which the monomers are copolymerized (which may differ from the ratio of the total quantities of monomers present in the system).  Specified substances which may be polymerized by the process are vinyl chloride vinyl acetate, styrene, acrylic and methacrylic acid esters, acrylonitrile, vinylidene chloride, maleic acid esters, isobutene and butadiene. In an example, vinyl chloride is polymerized in aqueous emulsion in the presence of cetyl sulphate, hydrogen peroxide and sulphuric acid. Specification 578,584 is referred to.
Patent GB-670846-A (GB)
Title: A device for the transmission of gyratory movement for compressors
IPC: F16J15/52
Filed: 1950-04-28
Abstract: 670,846. Rotary compressors; screw fans; stuffing boxes. STEENSEN, S. J. April 28, 1950 [April 29, 1949], No. 10485/50. Classes 110(i), 110(ii) and 122(v) [Also in Group XXXV] A gyratory piston 18 is driven by a motor 1 or 1<SP>1</SP> through a double shaft 7, 9, pivoted at 8, a resilient gas-tight packing such as a bellows 24 being arranged between the shaft 7 and the casing end 23. The shaft movements are double conical about the fulcrum, a part-spherical end 10 engaging the piston. The piston has a radial slot to engage with sliding motion, a fixed abutment 19 placed between inlet and outlet ports. The working chamber 20<SP>1</SP> has a thin metal lining 20. A permanent magnet 15, having annular pole pieces 16, keeps the piston in contact with the lining. The driving means comprises a member 5, concentric with the shaft 7, which engages a member 4, eccentric to a shaft 2. The inner end 24<SP>1</SP>, of the metal bellows 24, may be directly sealed to the shaft 7, or connected with the shaft by a sleeve 25, the outer end of which is sealed to the shaft by a ring 26. Soft, compressible packing is provided between the shaft 9 or 7 and the casing, preferably near the fulcrum. Alternatively, a concentric corruated diaphragm may be provided. In Fig. 3, the driving motor is arranged around the transmission and comprises an armature 28 which drives a sleeve 3<SP>1</SP> forming part of the driving member 4. A stationary ring 27 is placed between sleeves 3<SP>1</SP>, 3". The motor is of the squirrel-cage type.. The angle of the cones may be varied by displacing the driven part 5, of the eccentric, axially on the shaft 7. A fan 35, fixed to a cup 33, is driven by, the part 4.
Patent GB-964351-A (GB)
Title: Improvements in and relating to remote control systems utilising self-holding resonant reed relays
IPC: H01H50/74
Filed: 1961-03-23
Abstract: 964,351. Electromagnetic relays. P. R. MALLORY & CO. Inc. March 23, 1961 [May 27, I960], No. 10625/61. Heading H2B. A resonant relay including a multiplicity of tuned reeds arranged when oscillated at their respective frequencies to be attracted and held by the operating electromagnet against permanent magnet bias has a rectifier in series and a capacitor in parallel with its coil so as to provide the pulsating D.C. required in the coil when an A.C. input signal is applied to the circuit. As shown, the reeds 23 are secured to a base 10 with the permanent magnet 30 and with arms 31 extending from one pole of the magnet 30 to attract the reeds 23 away from the pole 15 of the electromagnet 11. When a reed is held against the pole 15 on energization a contact 33 on the reed engages a respective fixed contact 20 on an arm 18.
Patent GB-1342451-A (GB)
Title: Vending or like machine
IPC: G07F9/10
Filed: 1972-03-08
Abstract: 1342451 Locks VENDO CO 8 March 1972 [27 Oct 1971] 10680/72 Heading E2A A vending machine or like cabinet has inner and outer doors 12, 16, the inner door closing an interior, product-receiving, chamber and the space between the doors containing control mechanism, the inner door being held by a catch and the outer by a lockable deadbolt 74, both doors being hinged for separate or concurrent movement. The doors may be fastened together for this concurrent movement by a secondary lock 22 operating a crank 28 which slides a bolt 30 into and out of a slot (34) in bracket 36 so as to entrain a stirrup 38 on the inner door to gang the doors together. A primary lock 40 comprises a sliding cylinder 48, loaded by spring 50 and guided by pins in slots 60, and held in the inward, locked position by a tumbler passing from 62 into fixed slot 64. In its outward, unlocked position shown, a handle 66 which normally acts as a cover for the secondary lock 22, may be rotated clear to permit unlocking of the link between the doors. Return rotation of this handle rotates a cam 72 which forces the outer door into its closed position against seal 18. This cam is augmented by a T-shaped projection 92 engaging a bar 96 in the fully fastened position.
Patent GB-226477-A (GB)
Title: Process and installation for supplying oxygen or other gases to devices using the same
IPC: F17C9/02
Filed: 1924-04-30
Abstract: 226,477. De Wendel et Cie, Les Petits Fils de F., (Assignees of Weber, R.). Dec. 19, 1923, [Convention date]. Addition to 216,502. Revaporizing liquefied gases.-In apparatus for the direct supply of oxygen &c. to welding plant &c., as claimed in the parent Specifiation, the vessel containing the liquefied gas is heated by circulating between the protecting envelope and the inner vessel a gas heated by an electric resistance preferably controlled by a rheostat and located outside the vessel. The cold vapours evolved during the filling are circulated between the protecting envelopes and the inner vessel. Fig. 1 shows the heating effected by gas current heated by resistances H controlled bv a rheostat K. Fig. 2 shows the vessel being filled through a double-walled funnel D, the cold vapours evolved being led between the walls and through a conduit K to the spaces around the vessel. After filling the funnel D and conduit K are removed and the vessel is closed at the points G, L. Evaporation is effected by gas passing m and out of the jackets at the points F, L. The Specification as open to inspeotion under Sect. 91 (3) (a) comprises also the evaporation ot liquid by gas flowing through tubes E, Fig. 2, (Cancelled), immersed in the liquid and surrounded by electric resistances which may be insulated from the action of the liquid, the vessel being surrounded by insulating material. This subjectmatter does not appear in the Specification as accepted.
Patent GB-106368-A (GB)
Title: An Improved Fencing Post.
Inventor: MEYER JOHN CHRISTAIN
IPC: E04H17/12
Filed: 1916-07-31
Abstract: 106,368. Meyer, J. C. July 31, 1916. Fencing posts and standards.- A reinforced-concrete wire - fence post is provided with a longitudinal groove 2 and horizontal grooves 3 which are spaced to correspond with holes 7 formed in the edge of an expanded reinforcing bar 4. Inclined slots 6 are formed in the bar to lead the wires to the holes 7 the arrangement being such that, after straining, the wires are locked against Vertical movement by the grooves 3 and against horizontal movement bv the slots 6 and holes 7. The unexpanded part of the bar extends only to the ground level, as shown in Fig. 4, a hole 10 being formed at the lower end to receive a wire which is secured on each side to any convenient anchoring-means. The mould for the post is provided with a longitudinal ridge 13, Fig. 8, grooved to receive the bar 4, 'and with adjustable transverse ridges 14 to form respectively the grooves 2, 3.
Patent GB-987191-A (GB)
Title: Epoxy modified alkyd resins
Inventor: BOLLER ROBERT ANDREW
IPC: C08G63/42
Filed: 1963-03-19
Abstract: Epoxy modified alkyd resins, capable of being indefinitely diluted with water, are made by (1) heating a mixture of a polyhydric alcohol with a fatty acid or fatty oil and sufficient of a dicarboxylic acid or anhydride to produce a partial ester with residual acidity, (2) mixing this ester with a water-soluble organic solvent and an epoxidized fatty acid ester containing 8-26 carbon atoms in the fatty acid chain, (3) effecting a partial reaction between the partial ester and the partial ester at a temperature not exceeding 200 DEG C., and (4) inhibiting further reaction by neutralizing residual acidity of the partial ester with a volatile amine.  In the example, the reaction product of pentaerythritol, soya bean fatty acids and tetrachlorophthalic anhydride is diluted with ethylene glycol monobutyl ether, then heated with epoxidized soya bean oil and next neutralized with dimethylethanolamine.
Patent GB-881566-A (GB)
Title: Improved electric insulator and method of making it
IPC: H01B17/12
Filed: 1958-04-03
Abstract: 881,566. Moulding electric insulators. SOC. GENERALE DE CONSTRUCTIONS ELECTRIQUESET MECHANIQUES, ALSTHOM. April 3, 1958 [April 15, 1957], No. 10864/58. Class 87(2). [Also in Group XXXVI] An open-ended insulator such as 13 is made by coiling resin-impregnated fibrous material to form a closed body and then cutting the body along a plane parallel to the coil axis. The fibrous material may be, for example, glass, asbestos, cotton, jute, sisal, rayon or nylon, and the closed body may be of oval or triangular shape. The ends of the open-ended insulator may be enlarged or recessed to facilitate connection to other similar insulators. A part of the mandrel on which the body is wound may be retained as a filler piece for the insulator bight or a separate filler piece may be provided. An additional coating of synthetic resin over the filler and insulator may be provided. Fig. 8, shows diagramatically an arrangement for winding the coil. Fibres from a stand 17 are dried at 19, impregnated in a bath 21 and guided on to a rotating mandrel 25. The fibres are pressed on the mandrel by a pivoted member 26.
Patent GB-710741-A (GB)
Title: Improvements in or relating to filtering liquids
IPC: D21F1/66
Filed: 1952-04-30
Abstract: 710,741. Filtering liquids. LEJE & THURNE AKTIEBOLAG. April 30, 1952 [April 3, 1952], No. 10868/52. Class 46 The outer surface of a rotating inward-flow drum strainer 1, Fig. 1, partly submerged in a container 8 supplied with liquid containing pulp fibre to be strained and having means, e.g, a. take-off roller 53, for removing separated particles is given a filtering layer of particles similar to those being strained which are deposited thereon from an auxiliary suspension applied to a portion of the drum surface located above the liquid level 80 in the container 8. The auxiliary suspension which is maintained in a receptacle 39 traverses overflows 40, 42 and a sloping wall 43 running the length of the drum 1 and liquid pulp is drawn through the filtering layer thus formed by suction acting through a portion 64 of the drum previously cleaned by the roller 53, a space 52 and a suction box 50 evacuated by a pump (not shown). The suction also removes any residual fibres from the drum portion 64 which is then washed by water from a pipe 66 just prior to being given its filtering layer ; the liquid traversing the drum being collected in a receptacle 81 and fed through pipes 83, 84 into the container 8. The filtered liquid is discharged through opening 4 in the drum end wall 3, Fig. 3, when below a liquid level 90 and thence through a valved outlet 31 ; the rotating wall 3 being sealed against the container end wall 6 by a rubber ring 29 and tubular flanges 27, 28. The vacuum in the drum 1 is automatically controlled by a throttle valve 91 in the container end wall 6 actuated by a float 92 on the level 80 of the liquid in the container 8. The valve 32 in the outlet 31 may be similarly controlled.
Patent GB-1471582-A (GB)
Title: Cushioned printing laminate and method of manufacture
IPC: B32B5/18
Filed: 1974-03-12
Abstract: 1471582 Laminates F H WITTEL 12 March 1974 [21 March 1973] 10993/74 Heading B5N [Also in Division B6] A printing plate 10 comprises a first layer 11 of cured rubber compound and a second layer 12 of cured porous rubber compound, the second layer being thicker under the raised printing areas than under the non-printing areas of the first layer. Optionally, a backing layer of cured rubber compound 30 may be applied. The porous layer may be obtained by incorporating a blowing agent into the uncured material, and then curing a layer of this with a layer of uncured material of layer 11 in a mould, the curing being accompanied by blowing of layer 12. Layer 30 may also be applied in an uncured state to the material in the mould, and simultaneously cured. The rubber compound may be synthetic or natural.
Patent GB-854408-A (GB)
Title: New cyclopentanophenanthrene derivatives and process for the production thereof
IPC: C07J1/00
Filed: 1957-01-25
Abstract: The invention comprises compounds of the formula: <FORM:0854408/IV(b)/1> wherein R is an alkyl or aralkyl group, R1 is hydrogen or an acyl group, R2 is a lower alkyl group of up to 6 carbon atoms, and X is either a double-bond or a saturated linkage of the allo series between C4 and C5, together with a process for their preparation by reducing the corresponding 3-keto compounds with sodium borohydride preferably in a lower alkanol, and if desired esterifying the resulting 3-hydroxy steroid. Examples detail the preparation of 2a , 17a -dimethyl-D 4-androstene-3a  and 3b -diol, the analogous 2a -methyl-17a -ethyl-, 2a -methyl-17a -propyl-, 2a -ethyl-17a -methyl-, 2a , 17a -diethyl-, 2a -ethyl-17a -propyl-, 2a -propyl-17a -methyl-, 2a -propyl-17a -ethyl-, 2a , 17a -dipropyl-, 2a -benzyl-17a -methyl, 2a -benzyl-17a -ethyl- and 2a -benzyl-17a -propylcompounds and the corresponding 4, 5a -saturated androstane derivatives, their 3-acetates, propionates, benzoates and cyclopentyl-propionates.
Patent GB-511556-A (GB)
Title: A process for producing polymerisation products of olefines
IPC: C07C2/16
Filed: 1938-04-11
Abstract: 511,556. Porous ceramic supports. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. April 11, 1938, No. 11097. Convention date, April 19, 1937. [Class 87 (i)] [Also in Groups IV and III] Ceramic supports for catalysts, for use in the polymerisation of olefines, are made with a suitable surface porosity, but with relatively non-porous centres, by impregnating the surface only of the clay, after shaping but before firing, with combustible, decomposible or volatile material such as Glaubers' salt, ammonium carbonate, carbon black, sawdust or petroleum oils.
Patent GB-1177652-A (GB)
Title: Adjustment Mechanism.
Inventor: SMEDT FELIX FREDERICK DE
IPC: B29C48/08
Filed: 1966-03-14
Abstract: 1,177,652. Adjustable slot extrusion dies. GEVAERT-AGFA N.V. 7 March, 1967 [14 March, 1966], No. 11137/66. Headings B5A and B5B. [Also in Division F2H] An elongated slot-type die for extruding a sheet of thermoplastic material has at least one of its orifice lip members adjustably arranged for limited displacement relative to the other lip member, the adjustment mechanism controlling the displacement comprising a plurality of closely spaced adjustment screws extending longitudinally of the die, and which may both push and pull the adjustable lip member, the adjustment screws each comprising two parts of equal diameter and pitch in threaded engagement with aligned bores in the adjustable lip member and in the body portion of the die said two parts of each adjustment screw being in threaded engagement with each other through a screw threaded shaft portion of reduced diameter projecting from one part which engages a threaded bore into the other part, the pitch of the external threads of the parts being different from the threads through which both parts are engaged, and each of the two parts being arranged to receive a tool to rotate said part. In one embodiment Fig. 2 a die is composed of two parts 22 and 23 secured in mutual relationship by a bar 24 and bolts 25 and 26. An extrusion composition is fed through a channel 27 to a tear-drop manifold 28. A pair of lip members 30 and 31 form the extrusion orifice 29. The lip member 30 is made adjustable by the longitudinal region of locally weakened cross-section 32, and by transverse regions of weakened cross-section (not shown). Channels 34 and 35 contain heaters for controlling the temperature of the die. The adjustment of the lip member is controlled by adjustment screws 36, the upper part of which is in threaded engagement with the body portion of the part 22, and the lower portion of which is in threaded engagement with the portion of the part 22 below the region of weakened cross-section 32. In order to rotate the screws to adjust the orifice lip, a hexagonal key is inserted through bore 38 into a hexagonal socket formed in the upper part of the adjustment screw, and a second hexagonal screw is inserted through a bore 39 into a similar socket formed in the lower part of the adjustment screw. According to the direction of relative rotation of the screw parts the extrusion orifice width is increased or decreased.