baber/WOPTO huggingface dataset:
Patent GB-591770-A (GB)
Title: Improvements relating to fabricated welded metal bodies having passageways formed therein
IPC: B21C37/12
Filed: 1944-05-06
Abstract: 591,770. Moulds for plastics, platens &c. OGDEN, J. May 6, 1944. No. 8611. Convention date, Aug. 21, 1943. [Class 87 (ii)] [Also in Group XXII] Bodies having passages for heating or cooling fluid such as steam heated platens, cylindrical moulds for plastics &c., are made from metal plates or strips welded together at bevelled edges, the passages being formed by machining channels at one or both of the adjacent edges of each joint and holes drilled to connect the passages. A platen is formed from plates 10 with bevelled edges 12 for receiving weld metal, and strips 11 bevelled on the edges adjacent the plates. Some of the plates 10 and the strips are formed with channels 13 at their edges to provide steam passages which are closed at their ends by weld metal or screwed plugs 15 or connected to service lugs 16 welded to the strips 11. Cross passages 14 are formed by drilling holes at right angles to the channels. A mould may be formed from annular sections 17 with bevelled edges welded together and with passages formed by channelled edges. Cross passages 20 are provided two of which are connected to service ports in lugs 21 welded to the sections. Such a cylindrical body may alternatively be formed from longitudinal arcuate strips 22, welded together and formed at their edges with channels to form longitudinal passages or from two helically wound strips 27 welded to each other at their edges formed with channels to provide a helical passage.
Patent GB-1029846-A (GB)
Title: Display device
IPC: G09F13/00
Filed: 1965-03-01
Abstract: 1,029,846. Display devices. NATIONAL CASH REGISTER CO. March 1, 1965 [March 6, 1964], No. 8718/65. Heading G5C. A display device comprises a source 32 of ultra-violet light for projecting a pattern into ultra-violet light-colourable liquid 34 to form therein a coloured three-dimensional image 28 and a device for agitating the liquid to erase the image. As shown, the liquid is agitated by injecting through a port 25 and perforated tube 24 respectively uncoloured liquid and air bubbles. A timer is provided to flash the source 32 and, after a time delay, operate the agitating device. In a modification (not shown), the ultra-violet light is in the form of a movable beam to trace a pattern in the liquid to show e.g. changing data.
Patent GB-293115-A (GB)
Title: Improvements in and connected with booklet matches
IPC: A24F27/12
Filed: 1927-03-30
Abstract: 293,115. Rudd, W. March 30, 1927. Book matches.-A match package comprises a cardboard &c. blank 4 having a flap 3 to which is united a strip of booklet matches 1. The blank is folded along lines 8 so that wings 4, capable of being folded inwards, are produced, and further folding takes place on lines 10, 11, 5, 6 to form a folded packet as shown in Fig. 3.
Patent GB-263361-A (GB)
Title: Improvements in or relating to punch baize washers for acting as buffers for limiting the downward movement of the keys of pianofortes
IPC: G10C3/16
Filed: 1926-03-31
Abstract: 263,361. Brown, B. W. March 31, 1926. Pianoforte keys and keyboards. - Bat-pin washers for insertion under piano keys are composed of a layer of baize and a layer of either cork, wood, rubber, composition, or other compara. tively soft but resilient material.
Patent GB-623464-A (GB)
Title: An improved inlet device for downpipes
IPC: E04D13/04
Filed: 1947-04-01
Abstract: 623,464. Drainage inlets. HARRISON, E. DU G. April 1, 1947, No. 8795. Convention date, April 11, 1946. [Class 33] A drainage inlet for a flat surface protected by a waterproof sheeting 12 comprises a hollow frusto-conical or dishshaped member 6 having at the lower end an internally threaded cylindrical portion 3, by which it is attached to a down pipe 4, and at the upper end a flange 8. The member 6 attached to the downpipe is embedded in the roof surface 9 so that the flange 8 is flush with that surface and the apertured sheeting 12 laid, the edge of the aperture overlapping the member 6. A clamping element 10 having a shape corresponding to the internal shape of the member 6 is clamped within that member 6 by a spider 17, a screwed hook 15 and cross bar 13 secured to the element 10 so that the sheeting is jammed between the members 6 and 10. A strainer 20 is clamped against the spider. In a modification the element 10 is secured to the member 6 by bolts passing through aligned bosses and the strainer is bolted to bosses formed on the inside of the element 10.
Patent GB-734228-A (GB)
Title: Joint for pipes, more particularly irrigation pipes
Inventor: FELICIANI GIUSEPPE
IPC: F16L17/04
Filed: 1953-03-31
Abstract: 734,228. Pipe joints. TREGGIA, E. March 31, 1953, No. 8833/53. Class 99 (1). In a joint particularly for irrigation pipes in which a hollow, resilient sealing ring 3 having in-turned lips 4, a number of parallel, internal reinforcing ribs 6, and a protective metal casing 7, bridges the gap between the pipes, the shape and dimensions of the pipe, ring, and casing are such that at least one of the lips is in contact with a pipe only at its tapered free end to permit relatively wide angular adjustments of the pipes. The pipes may be secured by links (Fig. 1, not shown) pivotally mounted on the casing and adapted to engage lugs on the pipe ends. In a spigot-and-socket joint, Fig. 4, in which a socket 11 is formed on the pipe 1 so that the spigot member 2 has clearance therein, the lip 12 which engages the socket is smaller than the lip 13 engaging the spigot, and the metal casing 7 is secured to the socket such as by welding.
Patent GB-631822-A (GB)
Title: Improvements in friction reducing devices
IPC: A43B19/00
Filed: 1947-04-02
Abstract: 631,822. Finger stalls. SHOUCAIR, E. April 2, 1947, No. 8951. [Class 141] [Also in Groups VI, XIV and XV] A friction reducing device for use as a finger stall comprises a closed envelope of impervious flexible material having two superposed layers 1, 2 flexibly connected at their margins and having between them a film or thin layer of liquid or powdered lubricant or each layer having an inner coating of smooth metal. The lubricant 3 may preferably be glycerine mixed with water if desired.
Patent GB-692710-A (GB)
Title: Improvements in or relating to self-fluxing solders
Inventor: BRIGGS JOHN COCKBAIN
IPC: B23K35/02
Filed: 1950-04-12
Abstract: 692,710. Soldering and brazing. THESSCO INDUSTRIAL RESEARCH, Ltd. April 4, 1951 [April 12, 1950; Aug. 16, 1950; Oct. 31, 1950], Nos. 8952/50, 20291/50 and 26599/50. Class 83 (iv). Self-fluxing solder comprises a solid body of solder with an external surface carrying an external body of adherent flux to fill a recess or recesses on the surface and there is provided a vehicle for bonding the flux particles and causing them to adhere to the solder body, which affords a stiff body of flux under normal conditions and which substantially all vaporizes at the soldering temperature. In an embodiment a sheet of solder 10, Figs. 1, 3 is passed between rollers which produce dimples on both sides thereof which are filled with flux 13. The flux 13 may cover the peaks 12 produced or may fill only the dimples so that in this form solder may be used for electrical resistance soldering. In modifications solder strip may be corrugated or rolled to produce stud-like projections on both sides, the recesses being filled with flux which may also cover the projections. Solder strip may be provided with holes and then coated with flux. In another embodiment round solder wire 20, Figs. 7, 8 is rolled to strip form and twisted to form helical grooves which are filled with flux. In modifications a wire has two longitudinal flux-filled grooves on opposite sides of the wire and a strip has a series of staggered transverse fluxfilled grooves on both sides thereof or two or more wires may be twisted together to form a plurality of helical grooves to receive flux. The flux may completely cover the solder. To coat a wire it is passed through flux paste, flux powder and polybutyl methacrylate and is dried in a heated tube. Solder of composition 96 per cent tin, 4 per cent silver may have a flux of zinc chloride, salicyclic, phthalic, benzoic or citric acid while solder of composition 38 per cent silver, 20 per cent copper, 19 per cent zinc, 23 per cent cadmium may have flux of potassium or sodium fluoride mixed with boric acid or borax. Polybutyl methacrylate binds the flux and may include a plasticizer such as dibutyl phthalate. A ring of solder may be shaped to an annular joint and may be placed in an annular chamber formed in one tube which surrounds another to be jointed thereto. A disc of strip solder 30, Fig. 17, is placed in a hole in a tube well to overlay an inner tube. A stud 36, Fig. 19, may have a cap 38 of strip solder sprung on to its end 37 before fitting in a hole in a member 40 to which the stud 36 is to be soldered.
Patent GB-655986-A (GB)
Title: Improvements in or relating to storage tanks provided with heating means
IPC: B63J2/14
Filed: 1948-03-30
Abstract: 655,986. Heating liquids in bulk. SHELL REFINING & MARKETING CO., Ltd., and LAMB, J. March 30, 1948, No. 8974. [Class 64(iii)] The heating grid of a storage tank for mineral oil products &c. is made mainly of finned cast-iron piping which (1), is arranged in straight lengths, (2), is of sufficient strength to be rigid between supports spaced at distances of 20 times the sum of the diameter of the piping and the height of its highest fin, and (3), has twice the heating effect per unit length, and either the same length or half the length, as smooth steel piping of 2 inch bore, 2# inch external diameter, and 1 square foot of external heating surface per 80 cubic feet of tank space. In the form shown, straight lengths of finned cast-iron piping 6 have a bore of at least 2#2 inches, and an external cross-sectional contour of at least 15 inches. They are supported by slings 13 from beams 12 resting on longitudinal strengthening members 4 of the tank, and are connected by unfinned bends 8 which are also of cast-iron. Two, three or four fins may be .provided. They may be straight or spiral.
Patent GB-975607-A (GB)
Title: Tunnel diode circuits
IPC: H03K3/315
Filed: 1962-03-08
Abstract: 975,607. Tunnel diode monostable and bistable circuits. RADIO CORPORATION OF AMERICA. March 8, 1962 [March 21, 1961; June 20, 1961], No. 8997/62. Heading H3T. A two state circuit comprises a tunnel diode D<SP>1</SP>, a non-linear impedance R (e.g. a backward diode), a constant voltage bias source in series with the tunnel diode D<SP>1</SP> and the impedance R having a value such that a constant current region of the impedance R intersects a positive resistance region of the tunnel diode at a normal operating point and a low resistance region intersects the negative resistance region or the other positive resistance region, means 8, 9 for applying a pulse signal to a point on the circuit between the tunnel diode D<SP>1</SP> and the non-linear impedance R, to switch the state of the diode, and means 16, for deriving an output from the same point. The tunnel diode is initially biased to a point in its low voltage region by a constant current source I s  and application of input pulses at 8, 9 switch the operating point of the diode to the point where the low resistance region of the backward diode R intersects the tunnel diode characteristic. Either bi-stable or monostable operation may be obtained depending on the point of intersection. In a first modification, Fig. 3 (not shown), the non-linear impedance comprises a pair of backward diodes. In a second modification, Fig. 5 (not shown), the polarities of the backward diode and bias source V b  are reversed. In a third modification, Fig. 8 (not shown), the constant current bias I s  and the voltage bias V b  are provided by the same source. The inductive load L may be the effective inductance of the circuit wirings.
Patent GB-664536-A (GB)
Title: Improvements relating to supporting brackets for draining boards
IPC: A47L19/02
Filed: 1949-04-04
Abstract: 664,536. Brackets. STOCAL ENAMELS, Ltd., and GRAINGER, W. S. April 3, 1950. [April 4, 1949] No. 9026/49. Class 52 (v). A supporting bracket for a draining board comprises a cast metal clip 7 held in position on the sink by clamping screws 11. Bracket arms 8 of sheet metal having upper flanges 8b to support the draining board are detachably connected to the clip by bolts which pass through the clip 7 and a vertical flange 8c. Laterally projecting arms 13 fixed to the flange 8b have slots 13b for pins or bolts by which the draining board is attached to the support.
Patent GB-1389446-A (GB)
Title: Abrasion resistant cellular articles
IPC: C08J9/28
Filed: 1971-04-08
Abstract: 1389446 Moulding cellular articles; laminates IMPERIAL CHEMICAL INDUSTRIES Ltd 28 March 1972 [8 April 1971] 9044/71 Headings B5A and B5N [Also in Division B2] Cellular articles of increased abrasion resistance are prepared by curing the oil phase of a curable water-in-oil emulsion in a surface layer of which is embedded a layer of abrasionresistant particles. The particles may be laid, preferably as a monolayer, in a mould, in which they may be held by a releasable adhesive or the article may be made in a continuous process by applying the particles to a sloping belt to form a monolayer over which the emulsion is poured and cured as the belt travels horizontally. Alternatively, where there is a sufficient density difference, a mixture of particles and emulsion may be added to a mould or a centrifugal casting apparatus. Pipes may also be produced in which the inner surface contains low density hollow glass spheres whilst the outer surface contains solid glass ballotini. The largest particle may be less than twice the diameter of the smallest, at least 0À5 mm. particles being preferred and particles up to 15 mm. being specified. A laminate may be formed by bonding two articles together with their particle-bearing faces outermost. Further laminae may be incorporated. The oil phase of the emulsion may comprise a liquid or liquefied monomer such as styrene, methyl, ethyl- and butyl-methacrylate or acrylate, vinyl acetate, vinyl chloride, vinylidene chloride or butadiene. The emulsifier may be a polymer such as an unsaturated polyester and polymers of styrene, methyl-, ethyl- and butyl-methacrylate, vinyl acetate, acrylamide and acrylonitrile. Further polymers, preferably polymers of the monomers used, may be added. The emulsion may be prepared by adding water (which may contain a dyestuff, a lower alcohol, a saccharide or formamide), to a solution of the emulsifier in the monomer which forms the oil phase and adding a polymerization catalyst. The invention may be used to produce tiles or cladding panels, or articles of furniture such as chair legs or arms.
Patent GB-1390063-A (GB)
Title: Method and apparatus for measuring a voltage with the aid of an  analogue-digital converter
IPC: H03M1/00
Filed: 1972-02-28
Abstract: 1390063 Analogue to digital converter G ZSCHIMMER 28 Feb 1972 [3 March 1971 11 Feb 1972] 9143/73 Heading G4H In an A/D converter comprising an integrator provided with a feedback loop, a storage device in the loop stores a voltage applied to the integrator and can be disconnected from the integrator output so that the stored voltage biases the unknown voltage and the converter input is of constant polarity. The auxiliary voltage (-U o ) is larger than the unknown voltage (U E ) and of the same polarity as the reference voltage (-U R ). The converter comprises a differential amplifier 1, an integrator 2 and a comparator or zero threshold detector 3, the output of which controls the flow of clock pulses to a counter (not shown). A capacitor 8 and switch 7 are connected between the output of comparator 3 and one input of differential amplifier 1. In operation, switches 9 and 7 are closed and the feedback loop charges capacitor 8 to (-U O ), the auxiliary voltage. This voltage is held at one input of differential amplifier 1 when switch 7 is opened. Switches 9 and 7 are opened, switch 5 closed and the unknown voltage U E  is applied to differential amplifier 1, the difference between Uo and U E  being integrated by integrator 2. After time (t 1 -t 0 ). switch 5 is opened, switch 6 closed and the counter is started. The input to the integrator is now U R -U O  and this brings the integrated voltage at A down to zero, at which point comparator 3 stops the counter. U O  is made equal to ¢U R . The counter starts at 10,000 and counts downwards and then upwards, matters being arranged so that when U E  is at earth potential the count reading is zero. The counter thus provides a reading of the unknown voltage, of the count down period is indicated as negative and the count up as positive. The device may also be used for determining resistance by substitution of the unknown for R 1  or R 2 .
Patent GB-441591-A (GB)
Title: Improvements in or relating to modulated carrier wave receivers and demodulators
IPC: H03D3/26
Filed: 1935-03-23
Abstract: 441,591. Wireless receiving systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Elektra House, Victoria Embankment, London.-(Assignees of Conklin, J. W. ; Rocky Point, Long Island, New York, U.S.A.) March 23, 1935, No. 9152. Convention date, March 23, 1934. [Class 40 (v)] Frequency-modulated carrier waves are converted into amplitude modulated waves by passing them through a circuit comprising a resistance and a resonant circuit connected in series, and combining the voltages so produced. The frequency-modulated waves after frequency reduction by heterodyning or after amplification at A are applied across the resistance Z1 and the resonant circuit Z2 connected in series. A resultant voltage is taken from a variable tapping 4 on the resistance, and by a variable magnetic coupling L2 to the circuit Z2, and is applied to the grid circuit of a detector valve V. The circuit Z2 is preferably tuned to one of the extreme values of the carrier frequency, and the frequency variations cause the voltage picked up by the coil L2 to vary in phase. When this voltage is combined vectorially with the voltage across Z1, an amplitude-modulated wave results which is detected by any ordinary detector V. In a modification, the lower end of the resistance Z1 is connected to an intermediate point on the coil Z2 and the resultant voltage is taken off across the tapping 4 and one end of the coil Z2 (Fig. 2, not shown).
Patent GB-1124882-A (GB)
Title: Improvements in or relating to horticultural and like implements
Inventor: HARGREAVES DEREK BURTT
IPC: A01B1/24
Filed: 1966-03-02
Abstract: 1,124,882. Aerating turf. 'SISIS' EQUIPMENT (MACCLESFIELD) Ltd. 21 March, 1967 [2 March, 1966], No. 9198/66. Heading A1B. A turf aerator comprises U-shaped members 24 removably fitted to a frame 20, the ends 23 being formed to detach, support, and lift out part of the soil when the tool is inserted into the soil and then withdrawn. As shown the ends of the members 24 are twisted into helical formation. In a modification the members may be formed from flat bars with notched or serrated edges or tongues may be cut or bent to project out of the plane of the bars. In a further modification the ends may be shaped like a plurality of pyramid or conical parts with their smaller end directed to the entry end of the tine.
Patent GB-765834-A (GB)
Title: Improvements in and relating to coating compositions
IPC: C09D123/22
Filed: 1950-04-14
Abstract: A moisture-proof coating material is produced by compounding polyethylene and polyisobutylene at an elevated temperature, preferably at least 120 DEG  C., cooling the resultant composition, reducing the cooled composition to fragments, grinding the fragments in a solvent at an elevated temperature, preferably 60-80 DEG  C., until the fragments are dissolved, and continuing the grinding at reducing temperature until the mean size of the particles is not greater than 0.6 micron.  The preferred composition comprises between 70 to 80 per cent of polyethylene and 30 to 20 per cent of polyisobutylene, the proportions of solids in the solvent not exceeding 30 per cent.  The solvent may be one or more of benzene, xylol, toluol, methyl chloroform, carbon tetrachloride, tetrachloroethane, monochlorobenzene, monochlorotoluol, cyclohexanone, methylcyclohexanone, and isophorone, to which may be added a diluent such as petroleum naphtha, ligroin, petroleum spirit, kerosene, ethyl, propyl or butyl acetate, ethyl lactate, ethylene glycol monoethyl or monobutyl ether, diethylene oxide, acetone, methyl ethyl ketone, methyl isobutyl ketone, di-isobutyl ketone, diacetone alcohol, ethyl, isopropyl or butyl alcohol, or cyclohexanol.  The compositions may also contain chlorinated diphenyls, chlorinated paraffin, alkyl esters of abietic acid and microcrystalline mineral wax.  The compositions may be converted to emulsions of the water-in-oil type by adding water and an emulsifying agent and milling.
Patent GB-236301-A (GB)
Title: Improvements in automatic switches for use in telephone systems
IPC: H01H63/04
Filed: 1924-04-11
Abstract: 236,301. Western Electric Co., Ltd., (Deakin, G.). April 11, 1924. Selectors.-In a switch of the kind in which the testing and holding operations are effected over separate, brushes, a compound brush comprising a pair of insulated brushes 1, 2, is provided, both brushes engaging the same row of terminals 7. The brush springs 1, 2, are fitted with contact shoes 5, 6, the contacting surface of the shoe 5 being narrower than that of the shoe 6 to ensure a good mechanical contact, for the holding circuit over the shoe 6 the moment the test circuit is closed over the narrow shoe 5. and both shoes being flanked by caps 8, 9 of insulating material. The caps 8, 9 are of such a depth that when the brushes are between adjacent terminals, as shown in Fig. 3, the shoes 5, 6 are not in contact with one another.
Patent GB-1041531-A (GB)
Title: Perfluorinated n-heterocyclic compounds
IPC: C07D211/84
Filed: 1962-03-09
Abstract: The invention comprises perfluoro-2,3,4,5-tetrahydropyridine and perfluoro(N-methyl-pyrrolidine) and a procees for the preparation of said compounds by the pyrolysis of undecafluoropiperidine at 200 to 900 DEG  C. and a pressure in excess of 500 mm. Hg. Perfluoro(n-butylidene methylamine) is also produced in said pyrolysis.  When the pyrolysis is effected in an apparatus of mild steel or in the presence of another fluorine acceptor the principal product is perfluoro-2,3,4,5-tetrahydropyridine but when effected in an apparatus made of an inert material perfluoro (N-methylpyrrolidine) and perfluoro(n-butylidene methylamine) are the principal products.
Patent GB-959885-A (GB)
Title: An improved blank capable of being folded for use in a package
IPC: B65D5/50
Filed: 1963-03-08
Abstract: 959,885. Partitions for boxes. E. J. BRACH & SONS. March 8, 1963 [April 12, 1962], No. 9245/63. Heading B8P.  A divider blank for forming article positioning recesses has ribs 21-25 separated from the remainder of the blank by cuts 26 and fold lines 27 and 29, fold lines 30 in the ribs 25 and further fold lines 28 which divide the portions between the ribs into sections 50 and 51. The transverse ribs 25 may be staggered. To erect the blank the side ribs 21 and 22 are folded over on top of the remainder of the blank along the fold lines 29 so that tabs 32 provided on the ribs 21 are sealed to ends 53 of the ribs 24 and 25 by adhesive 33, and each inner panel section 50 and each section 53 is folded downwardly about fold lines 27 and 30, as shown in Fig. 2. To avoid the use of the adhesive 33, the ribs 21 may be of width equal to the height of the sections 53 and have slits therein defining tabs 47 which engage between the sections 53. In a modification the blank has protective tabs 60, as in Fig. 14, defined by cuts 26e and 26d and fold lines 45. In a further modification, shown in Fig. 17, the ribs 24 and 25 are divided into sections 57 and 58 by fold lines. The fold lines may be defined by a single score, perforations or spaced slits. The side ribs may be extended so that their edge portions may be folded inwardly to facilitate stacking. The divider means may either be self-sustaining or may be inserted ina box.