baber/WOPTO huggingface dataset:
Patent GB-255364-A (GB)
Title: Improvements in heat interchangers
IPC: F28F13/02
Filed: 1926-03-03
Abstract: 255,364. L³tschen, E. March 3, 1926. Plate apparatus.- A heat-exchanger of the type in which one fluid is directed in the form of jets against the heat exchanging wall, is provided with perforated partitions f, h parallel with and a short distance from the wall b so that jets of fluid passing through the perforations k impinge with equal velocity against the heat exchanging surface. The partitions may be on one, or both sides as shown.
Patent GB-661225-A (GB)
Title: Improvements in foot-operated controllers for electric motors
IPC: H01H21/26
Filed: 1949-03-05
Abstract: 661,225. Controllers. BAKER & SON, Ltd., E., and PERRY, A. Feb. 23, 1950. [March 5, 1949] No. 0071/49. Class 38 (iii). The operating-shaft of a reversing controller for an electric motor is coupled to a plate 15, the controller being moved from its "off' position by depression of a pedal 24 which actuates a pivoted lever 19 and causes finger 21 to engage a slot 18 in the plate. The controller is moved in the opposite direction from the neutral position by means of another pedal which operates lever 20. The controller is biased to its "off" position by means of springs 27, and may be held in an operative position by moving the pedal to one side to engage a horizontally disposed part 29 of a slot 28.
Patent GB-573474-A (GB)
Title: Improvements in or relating to plastic sheets or films convertible to dichroic polarizers and image carriers
IPC: G02B5/30
Filed: 1943-04-15
Abstract: 573,474. Polarizing-apparatus. INTERNATIONAL POLAROID CORPORATION. April 15, 1943, No. 6083. Convention date, May 22, 1942. [Class 97 (i)] [Also in Group VIII] A composite plastic sheet or film, adapted for use in making light-polarizing material, comprises a substantially non-hydrophilic transparent plastic 14 containing groups hydrolysable to hydrophilic groups and having an integral surface layer 16 comprising a hydrophilic hydrolysis product thereof, and a layer 12 of transparent hydrophilic molecularly oriented plastic material bonded to said surface layer. The composite sheet may be used for dichroic polarizers and image carriers, the layer 14 protecting the layer 12 and being readily bonded to it on account of the hydrophilic surface layer 16. The layer 12 may be a relatively thin sheet of polyvinyl alcohol, stretched to orient the molecules into substantial parallelism, and the layer 14 a relatively thick sheet of a polyvinyl alcohol derivative, such as polyvinyl acetal, having the layer 16 converted to polyvinyl alcohol by a hydrolysing agent, such as a solution of a mineral acid. The sheet 14 may alternatively comprise a cellulose compound, for example cellulose acetate having the layer 16 produced by a hydrolysing agent such as sodium hydroxide. Apparatus for applying the agent, in which the sheet passes in air over the absorbent surface of a drum dipping into the agent is described. Apparatus for applying water or a solution such as polyvinyl. alcohol solution to the surfaces to be united, and for uniting them, is also described. Two sheets as shown in the Figure may be united, either with the sheets 14 or the sheets 12 in contact; alternatively, two sheets 12 may be united to opposite faces of one sheet 14, or both surfaces of one sheet 12 may be united to sheets 14. In composite sheets comprising two oriented sheets 12 the directions of orientation may be parallel if the combination is to form a polarizer, at various angles if it is to form a light-filter transmitting infra-red rays, and at 90 degrees if it is to bear stereoscopic pairs or other images. If the sheets 14 are outermost their outer surfaces may be rendered hard and optically smooth by swelling them with an organic plastic which will polymerize to form a harder material than the body of the sheets, and by placing the compound sheet between glass or other plates during polymerization. The molecules of the sheets 12 may be oriented by stretching the sheets or by friction on them after assembly of the sheets. Images may be applied to the sheets 12 by imbibition of dichroic dyes from colloid reliefs. Specification 549,698 is referred to.
Patent GB-763982-A (GB)
Title: Improvements in milling cutters
Inventor: ROBINSON HERBERT WILFRED
IPC: B23C5/22
Filed: 1954-03-02
Abstract: 763,982. Milling-cutters. FIRTH BROWN, TOOLS, Ltd. Feb. 3, 1955 [March 2, 1954], No. 6134/54. Class 83 (3). A milling-cutter comprises a body 20 around which cutting blades 24 are clamped by segments 23 drawn against the body, as by screws passing through the segments, and tongues 26 on the segments engaging a groove in the body. The tongues 26, tongues 31 on the blades, and the groove are of rectangular, triangular, semicircular or other shape. The end surfaces of the segments may be radial or non-radial of the cutter axis to provide rake for the circumferential cutting edges 34, or positive or negative rake for the side edges 33. Alternate blades may be arranged to provide side cutting-edges 33 on opposite sides of the body. The outer surface of the segments may be arcuate if the circumferential cutting edges 34 are not provided. The side faces of the tongues 31 of the blades may be ground away to permit lateral adjustment of the blades to compensate for wear of the side cutting-edges 33. The angle of the blades may vary from blade to blade, but the blades are preferably of uniform thickness. High-speed steel, tungsten-carbide, &c., may be used for the blades.
Patent GB-566148-A (GB)
Title: Improvements in and relating to metallic stairs
IPC: E04F11/112
Filed: 1943-04-21
Abstract: 566,148. Stairs. BRABY & CO., Ltd., F., FERGUSON, G. H., and PHILLIPS, T. April 21, 1943, No. 6386. [Class 20 (iv)] Metal stair elements, each comprising a tread 1 and riser 2 are formed with channels 3 of which the side walls 4 form obtuse angles with the base. If elements of less than the standard width and height are required, the channels are distorted as at 4<1>. Tread surfaces 5 of concrete may be provided. Specification 361,649 is referred to.
Patent GB-1196463-A (GB)
Title: Roof Supports Suitable for use in Mines
Inventor: SEAL JOHN
IPC: E21D15/54
Filed: 1967-02-10
Abstract: 1,196,463. Mine props. DOWTY MINING EQUIPMENT Ltd. 16 Jan., 1968 [10 Feb., 1967], No. 6427/67. Heading E1E. A mine prop 2 is supported for angular movement at its top or bottom (as shown) by a floor- or roof-engaging member 1 to which is fixed by means of a collar 5 via a rubber ring 4 a tubular member 3 which fits around the prop at its end spaced from the floor or roof, and is spaced from the prop at the end adjacent the ring 4.
Patent GB-634007-A (GB)
Title: Improved construction of clothes peg
IPC: D06F55/02
Filed: 1948-03-01
Abstract: 634,007. Spring clips. STROUD, M. G. March 1, 1948, No. 6464. Convention date, March 7, 1947. [Class 44] A clothes peg comprises a pair of legs 1, 2, of wood or other rigid material resiliently held together by a substantially G-shaped wire spring. A horizontal limb 6 of the spring is received in a transverse groove 7 in the outer side of one leg 2, the opposite ends 9, 13, of limb 6 extending obliquely upwards adjacent opposed lateral sides of the peg. One of these ends 9, terminates in a horizontal portion 10 housed in a transverse groove 11 formed on the outer side of leg 1, the other end 13 being bent inwards as at 15 to press against the inner face of member 1. The portion 15 may be received within a notch 16 of sufficient width to allow vertical movement of the portion 15 when the peg is pressed upon the clothes on a line, the leg 2 pivoting at its comer 5 about the leg 1. The legs 1, 2, are provided with the usual flared entrance 3 and clothes line receiving notches 4. In a modification, the legs 1, 2, are of equal length, and taper from about mid-length to their upper ends to provide handle gripping portions which when pressed together open the lower ends of the peg.
Patent GB-200135-A (GB)
Title: Improvements in extrusion presses
IPC: B28B3/20
Filed: 1922-03-04
Abstract: 200,135. Prescott, W. E., Baker, Sons, &. Perkins, Ltd., J., and Standardised China Clay Co., Ltd. March 4, 1922. Extrusion machines.-In an extrusion press of the type in which rollers B, B<1> rotate in a receptacle A and deliver the material through a nozzle at the base, a reciprocating plate is used in the pass between the rolls. This plate is reciprocated at a rapid rate and its stroke is adjusted by a lever G with perforations K to any of which the end of a connecting-rod M may be secured. The rolls are half within and half without the casing. The apparatus may be used in conjunction with the drying-apparatus described in Specification 8892/14, [Class 34 (ii), Drying systems &c.].
Patent GB-1498721-A (GB)
Title: Production of carbon fibre
IPC: D01F9/22
Filed: 1975-02-17
Abstract: 1498721 Carbon fibres MORGANITE MODMOR Ltd 10 Feb 1976 [17 Feb 1975] 6583/75 Heading C1A A carbon fibre is made from a multifilament continuous tow of organic precursor fibre, by heat treatment in an oxygen containing atmosphere and subsequent carbonization optionally followed by graphitization, the tow being given a twist between the oxygen treatment and the carbonization, which twist is made permanent by the carbonization and maintains the fibres within the tow during the carbonization and subsequent handling. Preferably a polyacrylonitrile tow is used containing 2,000 to 20,000 filaments of 0À5 to 5 denier, oxygen treatment is carried out under tension at least sufficient to prevent shrinkage of more than 5%, and a twist of 10 to 130 turns/metres is used. Carbonization may be effected at 1,000 to 2,000‹ C. and graphitization at 2,000 to 3,000‹ C.
Patent GB-1416119-A (GB)
Title: Fuel injection pump
IPC: F02D1/18
Filed: 1974-02-13
Abstract: 1416119 Fuel injection pumps STANADYNE Inc 13 Feb 1974 [28 Feb 1973] 6596/74 Heading F1A A fuel injection pump comprises a pair of shuttles 216, Fig. 4, each reciprocable between a pair of adjustable stops 218, 238, the chambers 214 on one side of the shuttles being arranged alternately to receive fuel from a groove 34, Figs. 1 and 2, fed with fuel through a governor controlled metering valve 134 and the chambers 224 on the other side of the shuttles being arranged for alternate pressurization to displace fuel from the chambers 214 into a pumping chamber 38. Fuel enters each chamber 214 each time a longitudinal groove 210, Fig. 2, connected to the groove 34 in a rotor 18 registers with a port 212 connected to the respective chamber 214. At the same time the other chamber 224 is connected to low pressure by a logitudinal groove 222 in the rotor, thereby to allow movement of the shuttle. After filling of a chamber 214, further rotation of the rotor 18 closes the groove 222 and connects the chamber 224, via a groove 232, to high pressure. Thus a measured quantity of fuel is displaced from the chamber 214 past a non-return ball valve 36 to the pumping chamber 38, Fig. 1 for subsequent delivery by radially reciprocating pistons 50 past a delivery valve 41 into a passage 44 and thence to whichever outlet passage 46 is aligned with the passage 44. The non-return valve 36 is urged towards its closed position by a closer piston 244 continuously subjected to the delivery from an inlet pump 22 via a passage 242. As described in Specification 1416120 the metering valve 134 is inter alia responsible for producing control pressure in a conduit 180 which is proportional to the square of the pump's speed. This control pressure acts on servo-pistons 204, 186 to determine the positions of a profiled plunger 178 controlling the stops 238 and the angular position of a cam ring 60 for causing reciprocation of the pistons 50. The positions of the plunger 178 and the ring 60 control the quantity delivered and the timing, respectively.
Patent GB-1171993-A (GB)
Title: Process for production of 1,3-Butadiene of Polymerizable Quality
Inventor: HAUTHAL HERMANN
IPC: C07C7/08
Filed: 1967-02-10
Abstract: 1,171,993. 1,3-Butadiene. LEUNA-WERKE " WALTER ULBRIGHT " VEB. 10 Feb., 1967, No. 6610/67. Heading C5E. 1,3-Butadiene of polymerizable quality is produced from C 4 -hydrocarbon fractions containing butadiene by means of extractive distillation with dimethyl formamide containing less than 1 wt. per cent water whereby the C4-hydrocarbons which are more volatile than butadiene are stripped from the gas saturated solvent by heating or by a counter-flow of butadiene, while pure butadiene and a gas enriched with hydrocarbons which are less volatile than butadiene are separated by a fractional desorption.
Patent GB-394764-A (GB)
Title: An improvement in or relating to presses for fabrics
IPC: D06C15/04
Filed: 1932-03-05
Abstract: 394,764. Hydraulic presses. HEATON, A. D. and LANG, J. O., Valley Works, Liversedge, Yorkshire. March 5, 1932, No. 6656. [Class 69 (ii).] The lift of each hydraulic ram c for raising the bed b up to the roller a of a press for fabrics is adjustably limited. As shown, a sleeve f to engage a collar c<1> on each ram is screwed into the body e of each press, the several sleeves carrying intergeared wheels h.
Patent GB-249120-A (GB)
Title: Improvements in electric water heaters
IPC: A47J27/21
Filed: 1926-03-10
Abstract: 249,120. Hocking, W. H. March 10, 1926. Heating by electricity.-A heater for liquids comprises a jug-like container 9 of porcelain or the like having a lid 10 of similar material supporting removable concentric metal electrodes 14. The electrodes are perforated and engage lugs 13 on the lid. A hole is provided in the side of the container for receiving a socket connection engaging terminals 16 on the electrodes. The Specification as open to inspection under Sect. 91 (3) (a) refers to the use of an aluminium or copper container constituting an electrode. This subject-matter does not appear in the Specification as accepted.
Patent GB-1165958-A (GB)
Title: Process for the Manufacture of Films and Filamentary Materials made from Viscose
IPC: D01F2/10
Filed: 1967-02-13
Abstract: 1,165,958. Regenerated cellulose fibres, fibres and filaments. FARBWERKE HOECHST A.G. 13 Feb., 1967 [12 Feb., 1966], No. 6869/67. Heading B5B. In a process for preparing filaments, fibres and films of regenerated cellulose from viscose, compounds of general formula wherein R represents a hydrophobic alkyl radical having 6 to 20 carbon atoms which may be branded or interrupted by an oxygen atom, a carbamide group or a sulphonamide group, R 1  represents a hydrogen atom or an alkyl radical having 1 to 3 carbon atoms, or represents an integer within the range from 2 to 4, x represents an integer from 4 to 50, or said compounds in the form of their amine oxides, or in the form of their quaternary ammonium compounds, are added to the viscose and/or to the spinning bath in an amount within the range 0À05-10% by weight, referred to the cellulose contained in the viscose, and the viscose is spun into an aqueous bath containing sodium sulphate, whose sulphuric acid content is within the range of from 0À8 to 1À5 times the alkali content in the viscose and which contains 2 to 20% of zinc sulphate. A polyalkylene glycol having a molecular weight of 200 to 10,000 may also be added to the viscose solution and/or spinning bath.
Patent GB-421768-A (GB)
Title: Manufacture of films from solutions of cellulose acetate
IPC: C08L1/12
Filed: 1934-03-05
Abstract: Films are produced by casting on to a support a solution of acetyl cellulose in a solvent mixture comprising methylene chloride, one or more higher homologues of ethyl alcohol, e.g. propyl or amyl alcohol, and one or more chlorinated aliphatic hydrocarbons which have a boiling point higher than that of methylene chloride, and which in conjunction with the alcohol are capable of dissolving acetyl cellulose.  Examples of suitable chlorinated hydrocarbons are chloroform, dichlorethane, trichlorethane, tetrachlorethane, dichloropropane, and trichloropropane.  Mixtures of methylene chloride and chloroform obtained when producing the former on an industrial scale may be used to make up the solvent.  Examples are given of the production of films by casting from solution comprising (1) methylene chloride, chloroform, propanol, triphenyl phosphate, and phthalic acid diethyl ester; (2) methylene chloride, chloroform, and butanol; (3) methylene chloride, chloroform, and amyl alcohol; (4) methylene chloride, ethylene chloride, and amyl alcohol.
Patent GB-844052-A (GB)
Title: Improvements in and relating to the moulding of thermoplastic materials
Inventor: BURNETT BARRIE SHAW
IPC: B29C45/14
Filed: 1956-03-06
Abstract: 844,052. Moulding thermoplastic materials. SUBMARINE CABLES Ltd. March 4, 1957 [March 6, 1956], No. 7050/56. Class 87(2). [Also in Group XXXVI] A joint is secured between an outer covering of thermoplastic and an inner body of metal or other material having a higher melting point than the thermoplastic by forming a bulge of spheroidal, ellipsoidal or other rounded shape on the inner body and then causing the thermoplastic to contract on cooling on to the bulge so that the contraction takes place towards the centre of the bulge. In particular the invention relates to the production of a gland joint between one or more thermoplastic insulated electric cables C, C<SP>1</SP> and a metal casing A with the cables entering through a tubular end boss D by forming a bulge 1 on the boss and, by a moulding operation, connecting the insulation. with the bulge by a coating layer 3 which completely surrounds the bulge. The thickness of this coating layer should preferably be uniform throughout to ensure that the inner and outer surfaces remain parallel to one another, the contracting forces set up during cooling thus being uniform from one end of the gland to the other. The cables and the boss are held in. the correct position relative to one another and a mould casing M is placed around the boss with its inner surface of the same contour as the outer surface required on the layer 3. Heated thermoplastic, e.g. polyethylene, is injected into the mould through an inlet 12 and this melts and blends with the conductor insulating material, the blended material flowing under pressure to fill the annular space of the threaded bores B, B<SP>1</SP> of the boss D. The surface of the bulge 1 may be corrugated as shown in order to produce a greater adhesion of the thermoplastic and also to provide a longer leakage path for the seepage of water between the thermoplastic and the boss.
Patent GB-267930-A (GB)
Title: Improvements in and relating to protective arrangements for electric systems
IPC: H02H7/26
Filed: 1927-03-15
Abstract: 267,930. British Thomson-Houston Co., Ltd., (Assignees of Traver, O. C.). March 18, 1926, [Convention date]. Cut-out arrangements. - In the protection of parallel feeders, in addition to the usual differential selective protection by means of current transformers 22, 23 connected in a circulating current system, the selective tripping being effected by the closure of both an over-current relay 11 in the equi-potential connection 20, 21 and a directional relay 13 with its current coil 14 in the same equi-potential connection, summation overload protection is provided operative when the vectorial sum of the currents in the feeders exceeds a predetermined value. This additional protection is afforded by an overcurrent relay 25 with its coil 26 connected across an impedance 28 in the circulating-current circuit, the equi-potential point 20 being a point on this impedance. By these means the relay 25 is always energized by a current proportional to the vectorial sum of the line currents whether one or two lines are in service and, therefore, either line when in service alone may be operated at a current equal to that of the normal current of the two lines together, without changing the relay adjustment. In modifications, the relay winding is connected across the middle half of the impedance or across a secondary winding (the impedance acting as the primary) and having half the number of turns of the impedance.
Patent GB-663405-A (GB)
Title: Metal eye elements for dolls, model animals and the like
IPC: A63H3/40
Filed: 1949-03-16
Abstract: 663,405. Eyes for dolls &c. TODD, D. G., and ROBINSON, J. March 16, 1950 [March 16, 1949], No. 7221/49. Class 132 (iii). "Sleeping" dolls' eyes comprise in the eonstruction shown a stamped or pressed sheet metal member 2 formed with eye protuberances 1 spaced by a ridged bridge 3. Pivots 8 are formed from tags 6 and a weight 10 is attached to triangular portion 5 of the sheet 2. Alternatively, a pivot similarly formed may be provided midway between the eyes. A modification, Figs. 5, 6 (not shown), has metal eye shells attached to a metal plate by tags, a pivot pin being positioned in a transverse groove in the plate.
Patent GB-561993-A (GB)
Title: Improvements in frequency modulated transmitters
IPC: H03C3/18
Filed: 1942-05-28
Abstract: 561,993. Transformers. AGA-BALTIC AKTIEBOLAG. May 28, 1942, No. 7247. Convention date, June 3, 1941. [Class 38 (ii)] [Also in Group XL] Frequency modulation is effected by a variable iron - cored inductance in the tuned circuit of a carrier wave generator, the inductance having two separate coils of which one carrying the speech or like signal current sets up a magnetic field at an angle, preferably a right angle to the field set up by the other coil in which the carrier circulates. The speech coil 20, Fig. 2, surrounds a core 19 connected by yokes 21, 22 to polepieces 23, 24. In the air gap is placed a ring core 26 with its axis in the direction of the field set up by the polepieces, the carrier coil 27 being wound round the ring so that its field is concentric with the ring. The core 19, 21, 22 may be pre-magnetized either permanently or by direct current in the winding 20 or in a separate winding. In Fig. 3 the ring coil 30 is shown connected in series with an inductance 28 in the tuned circuit of an oscillation generator 57, the output of which feeds the aerial 35 through an amplifier 34. The carrier frequency is modulated by speech applied to the microphone 32, the speech currents passing through an amplifier 33 to the coil 31 which corresponds to the coil 20 of Fig. 2. In a modification the speech currents pass to back-biassed push-pull amplifiers giving outputs alternately to two separate modulating inductances, the ring coil of one being in series and the other in parallel with the inductance 28 of the tuned circuit, Fig. 4 (not shown). Specification 148,758, [Class 38 (ii)], is referred to.