baber/WOPTO huggingface dataset:
Patent GB-490741-A (GB)
Title: Helicopter
IPC: B64C27/04
Filed: 1937-02-17
Abstract: 490,741. Helicopters. MITCHELL, F. W. Feb. 17, 1937, No. 4695. Drawings to Specification. [Class 4] A helicopter comprises two or more pairs of rotors of which the blades are adjustable in pitch, the rotors of each pair being superimposed and rotated in opposite senses. In one form the shafts of the rotors of each pair are concentric and are provided with bevel pinions with which mesh a driving pinion and a pinion secured to an airscrew shaft. Specification 17855 /08, [Class 4], is referred to.
Patent GB-537354-A (GB)
Title: Improvements in or relating to electric timing switches
IPC: G04F3/06
Filed: 1940-03-13
Abstract: 537,354. Time switches. EDISON SWAN ELECTRIC CO., Ltd., and NORMAN, E. W. March 13, 1940, No. 4699. [Class 38 (v)] A disc 16 bearing an arcuate contact strip 14 is rotatable at a constant speed by clockwork, electric motor &c. when a detent 4 is released as by a button 12, and travels through 180 degrees to a second detent. In its passage through one half circle the strip bridges two contact pins one 20 fixed, and the other 17, mounted on a further disc capable of being set by a knob 22 to vary the duration of the contact. In a modification, a series of pins 17 are used, selectively capable of being put into circuit. The two detents may be interconnected, so that when one is released the other must be in the "stop" position.
Patent GB-739709-A (GB)
Title: Improvements in or relating to treatment of polymeric substances
Inventor: CHARLESBY ARTHUR
IPC: B29C71/04
Filed: 1952-02-23
Abstract: Substances of high molecular weight which can be cold drawn, having a structure of chains consisting largely or wholly of carbon atoms, a substantial proportion of which have one or two hydrogen atoms attached thereto, e.g. polyethylene and nylon, are cold drawn to orientate at least a substantial proportion of the molecules and subjected to ionizing raditions to set the orientation wholly or in part.  Radiation from high energy sources, e.g. high energy neutrons, protons, electrons or helium ions, gamma rays, X-rays or thermal neutrons may be employed.  The substance, preferably one having an average of at least 1.5 hydrogen atoms attached to the carbon atoms of the chain, is preferably treated in a thermal nuclear reactor, with doses of 0.1 to 30, preferably 0.1 to 10 units, where a unit is 1017 thermal neutrons per square centimetre, or 50 X 106 roentgen. Specification 732,047 is referred to.
Patent GB-682410-A (GB)
Title: Improvements relating to power plant
Inventor: BAILEY RICHARD WILLIAM
IPC: F01N5/00
Filed: 1950-02-24
Abstract: 682,410. Air-heating furnaces; steam superheaters. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Jan. 23, 1951 [Feb. 24, 1950], No. 4867/50. Classes 64 (i) and 123 (iii) [Also in Group XXVI] A combustion chamber for burning fuel in the exhaust gases of a piston type reciprocating engine to heat the compressed air of a gas turbine plant or to superheat steam from a boiler or both comprises a steel shell lined in the lower portion with refractory material 18 to form a combustion space and in the upper portion with heatinsulating material 19, the inner wall of which is protected against high temperature by a coil of tubing 20 through which the steam or air is passed. The steam or air passes through an inlet header 22, the tubing 20 and intermediate header 23 to a conduit 24 which leads to a tube 25 extending to a lower header 26. This header is connected by a nest of tubes 27 to an outlet header 28. The tube 25 is allowed to slide within the header 28 to allow for expansion. The exhaust gases from an internal-combustion engine enter the combustion chamber through a conduit 30 and fuel is fed into this chamber through a pipe 31. If desired, separate heaters for the steam and air may be arranged in one combustion chamber. The shells are preferably covered with heat-insulating material and an outer casing may be provided to collect and lead away any gas which leaks through the joints in the shell structure. The temperature of the outgoing steam or air may be controlled by varying the amount of fuel fed through the pipe 31.
Patent GB-433465-A (GB)
Title: Improvements relating to machines for cutting metal billets
IPC: B23D21/00
Filed: 1934-02-15
Abstract: 433,465. Breaking. DONALD, G., 27, William Street, Johnstone, Renfrewshire. Feb. 15, 1934, No. 5002. [Class 83 (iv)] In a machine for breaking billets, the billet 3 is supported by anvils 4, 4, 5, 5 arranged at the sides of a gap 2 in a frame 1. A carriage 6 reciprocated by an electromotor driven eccentric, carries notching tools 4a, 5<a>. At each reciprocation of the carriage the tools 4<a>, 5<a> alternately notch the billet with a bending action until severance is effected. The carriage at rest occupies a position midway between the ends of its stroke to allow of the insertion of the billet.
Patent GB-644315-A (GB)
Title: Improved apparatus for use in removing the frozen layer from the surface of snowbound and/or icebound roads
IPC: E01H5/12
Filed: 1947-02-21
Abstract: 644,315. Snow-removing apparatus. CUTHBERTSON, J. A. Feb. 21, 1947, No. 5218. [Class 107] Apparatus for removing the frozen layer from icebound roads comprises a series of cutter discs 8 mounted on a shaft 2, each disc being free to rotate independently of the others and having transversely positioned in slots in its peripheral edge digging blades 9. Above the shaft is mounted a framework 3 supporting ballast 5, the ballast and framework being arranged symmetrically about the shaft 2. The discs form longitudinal cuts in the surface, whilst the blades form transverse cuts and prise the pieces away from the main layer.
Patent GB-1101144-A (GB)
Title: Improvements in or relating to optical systems
Inventor: SMITH FRANCIS HUGHES
IPC: G02B15/00
Filed: 1965-02-05
Abstract: 1,101,144. Optical apparatus. VICKERS Ltd. Jan.24, 1966 [Feb. 5, 1965], No. 5224/65. Heading G2J. A variable magnification system has a magnifying lens combination 14-16 and beam deflectors 12, 13, 17, external thereto for directing an image-bearing beam of light in either of two opposite directions along the optical axis of the system. As shown applied to a microscope, the double sided mirror 12 when in the position shown, reflects the beam 11 from the objective, (not shown), along the path 11a through the zoom lens 14-16, but when removed, the beam passes in the opposite direction along the path 11b. The zoom lens may have unit magnification at one end of its range so that there is no change of magnification when the mirror is inserted or removed. The system may be duplicated for use in a stereomicroscope.
Patent GB-511527-A (GB)
Title: Improvements in or relating to coupling devices for pipes and the like
IPC: F16L13/11
Filed: 1938-02-19
Abstract: 511,527. Pipe joints. GAS LIGHT & COKE CO., and AUSTEN, C. R. Feb. 19, 1938, Nos. 5273 and 19168. [Class 99 (i)] A pipe joint comprises a deformable metal coupling sleeve 1 of light gauge metal which has been heattreated to render it ductile and into which the pipes are introduced, and rubber, &c., sleeves 2, 3 in each half of the coupling sleeve, the latter being deformed as shown by swaging, &c. The pipes are flared and are centered by a rib 4. In a modification rubber rings 24 are located in recesses formed by deforming the sleeve outwardly the resulting projections 22 being flattened when the joint is assembled. Steel liners may be provided in the ends of soft metal pipes. White lead is applied to the engaging surfaces of sleeve and pipes.
Patent GB-1131968-A (GB)
Title: Method and apparatus for finishing hollow bodies obtained by extrusion blow-moulding
IPC: B29C49/50
Filed: 1967-02-03
Abstract: 1,131,968. Blow-moulding; flash removal. COMPAGNIE FRANCAISE DE RAFFINAGE. 3 Feb., 1967 [7 Feb., 1966; 4 March, 1966], No. 5294/67. Heading B5A. Flash is removed from the neck and/or bottom of hollow bodies during blow-moulding by pinching it between two serrated surfaces, the serrations of one surface being inclined, and those of the other being either inclined in the opposite direction or parallel to the longitudinal axis of the mould depending on the material and amount of flash, one of the surfaces being then moved relative to the other, causing tearing parallel to the direction of the serrations on the fixed surface. As in Fig. 14, flash 46 may be separated from the bottom of the container 10 using apparatus comprising two mould parts 11, 12, forming a space between the pinching surfaces thereof and a slide 51 movable transversely, inserted in one of the pinching surfaces 12, the slide having serrations 56 inclined to its axis of translation, the pinching surface of the other half-mould having serrations opposite to those of the slide with respect to the axis of translation. Apparatus as shown in Fig. 1 may be used to remove flash from the neck of the containers, and comprises a hollow blowing mandrel 15 movable longitudinally or rotatable and having serrations 20 inclined to its longitudinal axis, there being a space between the mandrel and the mould which has serrations at the bottom of the space, inclined opposite to those of the mandrel or parallel to the longitudinal axis of the mould. The serra. tions may be saw teeth.
Patent GB-1514282-A (GB)
Title: Tilting bed frames
IPC: A61G7/005
Filed: 1976-01-19
Abstract: 1514282 Adjustable beds BRITISH SYPHON INDUSTRIES Ltd 19 Jan 1976 [7 Feb 1975] 5382/75 Heading A4J A bed frame comprises a top frame 12 connected to a base frame 10 for vertical and tilting adjustment by pairs of crossed members 14, 16 each pivoted to the frames at 18, 20, 22, the cross member 16 being connected to top frame 12 by a substantially vertical strut 24 pivoted to frame 12 at 26, strut 24 being connected to member 16 by a releasable detent mechanism 28 comprising a pair of plates 30 separated by a block 32, plates 30 and block 32 having apertures that slidably receive strut 24 (or member 16), block 32 having a spigot 34 pivoted to member 16 (or strut 24) and the plates 30 being tilted by a compression spring 36 to jam against the strut 24 (or member 16) to prevent sliding thereof. The jamming of the plates 30 on the strut 24 (or member 16) is removed by a Bowden cable 40 openable by a handle associated with an element on frame 12 so that the weight of the heel can be taken by an operator before releasing the detent mechanism 28. A hydraulic jack 42 facilitates vertical adjustment. Member 16 includes a telescopic section 17. A one-way hydraulic damper prevents sudden lowering of the tilted bed frame end.
Patent GB-1261243-A (GB)
Title: Electrical detecting element
IPC: G01L9/00
Filed: 1969-01-31
Abstract: 1,261,243. Measuring displacement electrically. DAIMLER-BENZ A.G. Jan.31, 1969 [Feb.1, 1968], No. 5414/69. Heading G1N. A transducer for measuring linear displacement of a rod 4, Fig. 1, comprises a cylindrical permanent magnet 2 magnetized axially, mounted on the rod 4 centrally inside soft iron section 7, 8, 9 shaped as cylinders 14, Fig. 2, with diametrically opposite projections 15 on the external surface parallel to the axis and secured by diamagnetic segments to the inner wall of a diamagnetic casing 5. A coil 10 is fixed between the central section 8 and each outer section 7, 9. Axial displacement of rod 4 produces a difference between the flux passing through the two coils 10, which is sensed by an external bridge circuit. In another embodiment for measuring pressure and ferromagnetic diaphragm 18, Fig.3, clamped between diamagnetic casings 17, 19, a cylindrical permanent magnet 22 and a central soft iron core 23 assembled on a soft iron base 21. The underside of core 23 has four quadrant recesses 25, Fig. 4, and four coils 27 are located between the remaining four arms 26 and the base 21. Displacement of the diaphragm 18 by a variation in pressure alters the flux in the magnetic circuit by an amount sensed by the coils 27.
Patent GB-851474-A (GB)
Title: Liquid spraying apparatus
Inventor: ALLMAN ERNEST JAMES
IPC: F04B43/12
Filed: 1956-02-22
Abstract: 851,474. Flexible-tube pumps. ALLMAN PATENTS Ltd. Feb. 22, 1957 [Feb. 22, 1956], No. 5500/56. Class 110 (2). [Also in Group XXIX] A flexible tube 11 is successively squeezed between a guide 4 and at least one of a number of rollers 16 mounted on a carrier 13, to feed liquid to a pipe 12 and spraying nozzle 18, the delivery end of the tube 11 being free to expand to act as an expansion chamber to ensure a continuous liquid supply. The pump has a hollow handle 6 through which the tube passes, and the guide is D-shaped with attached sideplates 5. The carrier comprises spaced discs 13 on a spindle 14 carried in bearings on the sideplates, and is rotated by a crank handle 15. The rollers are on spindles 17 on the discs. In operation one end of the tube is inserted in a liquid container from which the liquid is drawn. In Fig. 6 the carrier comprises an endless belt 20 on pulleys 22, and the spindle of the lower pulley is driven by a handle 15. Several such pumps may be driven by a common shaft e.g. from the power take-off of a tractor which carries or draws the spraying apparatus.
Patent GB-582039-A (GB)
Title: Improvements in or relating to three-phase dynamo electric machines
IPC: H02P23/00
Filed: 1945-03-05
Abstract: 582,039. Control of A.C motors. SMITH & SONS (ENGLAND), Ltd., S., and MEREDITH, F. W. March 5, 1945, No. 5514. [Class 38 (iii)]. [Also in Group XXXV] Reversing.-A 3-phase motor reversible by a single-pole switch 9 has (i) one phase winding 5 connected across two of the 3-phase supply lines 8, (ii) one half of phase winding 6 connected in series with one half of phase winding 7 between the mid-point of winding 5 and point 3, and (iii) the other half of phase winding 6 connected in series with the other half of phase winding 7 between the midpoint of winding 5 and point 4, whereby reversal can be effected by connecting the third supply line alternatively to point 3 or 4. The motor may be a hysteresis motor of the kind described in Specifications 576,248 and 576,249, [both in Group XXXV], also may be used for erection of a gyroscope, when switch 9 is a mercury switch operated by tilting of the gyroscope.
Patent GB-740103-A (GB)
Title: Improvements in dust collectors
Inventor: DOYLE DEWEY IRWIN
IPC: A47L9/28
Filed: 1954-02-25
Abstract: 740,103. Vacuum cleaner filters. DOYLE VACUUM CLEANER CO. Feb. 25, 1954, No. 5553/54. Classes 8(1) and 8(2). An air.filter bag 2 of flexible fabric material has a plurality of spaced reaches of electrical conductors 16 on a surface thereof located not more than two inches apart and having a grounding connection 20. The conductors 16 comprise braided tapes stitched along the exterior of the bag e.g., a suction cleaner bag the inlet coupling 9 of which forms the grounding. The bag is pleated to provide compartments 3, 4 separated by a conductor screen 7 having a grounding connection 21.
Patent GB-555539-A (GB)
Title: Improvements in and relating to the construction of walls, partitions and the like
IPC: E04B2/04
Filed: 1942-04-27
Abstract: 555,539. Pit-props. McGUIRE, T. April 21, April 27, 1942, No. 5627. [Class 87 (i)] A building unit for walls, partitions &c.is formed of two slabs a, b, each coated on one face with a bituminous preparation or other damp course material c, the prepared faces being caused to adhere solely by means of the material c with one offset with respect to the other, as shown at d ... g. The slabs may be of different sizes, and offset in different ways to that shown. Specification 167,276, [Class 87 (i)], is referred to.
Patent GB-1406160-A (GB)
Title: Pressure-sensitive transfer elements
IPC: B41M5/10
Filed: 1974-02-07
Abstract: 1406160 Pressure sensitive transfer element IMPERIAL CHEMICAL INDUSTRIES LTD 18 April 1974 [18 May 1973 21 Dec 1973 7 Feb 1974] 23780/73 59339/73 and 05639/74 Heading D2B A pressure-sensitive element comprises a polymeric film substrate, an intermediate anchor coating comprising a cross-linked acrylic or methacrylic resin, and an outer microporous thermoplastic polymeric sponge layer containing a pressure-releasable ink. The polymeric film substrate may be a polyolefin, polyamide, polyester, polysulphone or vinyl chloride polymer or copolymer film. The film may be unoriented or oriented in one or both directions. Oriented film may be "heat set" before application of the anchor coating. The surface(s) of polyolefin film may be subjected to oxidation, corona discharge, ionising radiation, or to flame treatment to improve its bonding properties. The anchor coating composition may include a thermosetting resin condensate as well as conventional additives such as wetting agents, antioxidants, dyes, pigments and an anti-blocking agent e.g. silica, or glass ballotini. An organo-metallic compound of Gp IV of the Periodic Table may also be included to improve adhesion, or be applied in the form of a solution to the anchor coating to form a layer thereon, or it may be incorporated in the microporous sponge layer.
Patent GB-338822-A (GB)
Title: Mobile surgery
IPC: B60P3/14
Filed: 1930-02-20
Abstract: 338,822. Bover, P. Feb. 20, 1930. Vehicles convertible into surgeries. - A road vehicle is fitted up for use as a surgery, such as a dental surgery. As shown the vehicle is provided with two compartments 2, 3 divided by a partition 1 having communicating door with a screen 5. The compartment 3 serves as a waiting-room, while the compartment 2 is provided with a dental chair 6, table 7, wash basin 8, drill and motor 9 and a tank 10 for fresh water. Soiled water is led to the tank 11, whence it may be suitably discharged.
Patent GB-239551-A (GB)
Title: Improvements relating to the manufacture of phosphate fertiliser
IPC: C05B11/08
Filed: 1924-03-05
Abstract: Natural calcium phosphates are treated with ammonium sulphate and a small amount of sulphuric acid, without the application of heat, to produce a neutral product containing ammonium phosphate. Preferably, one molecule of acid and at least one molecule of ammonium sulphate are added for each molecule of natural phosphate.  The sulphuric acid may be replaced by substances, such as nitre cake, capable of yielding such acid on hydrolysis. Specification 191,129, [Class 1 (iii), Oxides &c., Metallic], is referred to.ALSO:Natural calcium phosphates are treated with one or more alkali-metal sulphates, this term including ammonium sulphate, and a small amount of sulphuric acid, without the application of heat, to produce a neutral product containing one or more water-soluble alkali-metal phosphates and calcium phosphate soluble in citric acid or ammonium citrate. Preferably one molecule of acid and at least one molecule of alkali-metal sulphate are added for each molecule of natural phosphate.  The sulphuric acid may be replaced by substances, such as nitre cake, capable of yielding such acid on hydrolysis.  The products may be mixed with organic matter such as peat, sewage sludge, and industrial residues from tanneries, breweries, &c. Specification 191,129 is referred to.
Patent GB-248556-A (GB)
Title: Improvements in double-acting internal combustion engines
IPC: F02B75/00
Filed: 1925-08-10
Abstract: 248,556. Gigli, A. A. Aug. 10, 1925. Channels in cylinders.-In a doubleacting internal-combustion engine, oil is supplied to the slot U in the cylinder and after use falls into the collecting channel x; this has two outlets to the crank pit. The cooling water supply channels z are placed next to the oil channels to cool the oil before it drops into the pit. Baffles may be placed at y in the oil outlets.
Patent GB-405809-A (GB)
Title: Improvements in the production of alkali metal carbamates
IPC: C01B21/12
Filed: 1933-02-25
Abstract: Alkali metal carbamates are obtained by causing ammonium carbamate to react with a water soluble salt of an alkali metal in aqueous solution at a temperature below 10 DEG  C. whereby the alkali metal carbamate is precipitated.  Ammonium carbamate with or without ammonia may be added to an aqueous solution of the water soluble salt, a water soluble salt of the alkali metal may be added to an aqueous solution of ammonium carbamate which may contain excess of ammonia or an aqueous ammoniacal solution of a water soluble alkali metal salt may be carbonated while maintaining a molecular ratio of carbon dioxide to ammonia not exceeding 0.5.  The process may be applied to the production of sodium carbamate from sodium chloride or carbonate or potassium carbamate from potassium chloride.  The Specification as open to inspection under Sect. 91 describes the process as applicable to the production of calcium carbamate from calcium chloride.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1102363-A (GB)
Title: Process for the preparation of a fibre arrangement or strand composed of staple fibresfor undergoing a subsequent high draft and a staple band produced according to the a foresaid process
IPC: D01H5/72
Filed: 1965-02-10
Abstract: 1,102,363. Spinning process; applying adhesive. PAVENA A.G. 10, Feb., 1965 [15, Feb., 1964], No. 5830/65. Headings D1F and D1L. A fibre band e.g. a roving is impregnated with a liquid adhesive, condensed and allowed to cut so as to produce a high density (i.e. greater than 0.5 gms/cm<SP>3</SP>) band with less elasticity and greater strength than the untreated band. The treated band may be subjected to a high draft (e.g. 30-150) by apparatus not having roving guides and aprons. In addition the product is easily transported. The treated band may be given a definite cross-section e.g. rectangular or square. In Fig. 1, roving V is subjected to a small preliminary drafting by rollers 2, 3 before being formed by a member 5 about a tube 8 through which liquid adhesive is passed. The treated band is then compressed by disks 9, 10 between side plates 11, 12, see also Fig. 2 not shown, and dried. It is then ready for a high draft. The same process may be used with low draft in the preparatory stages of the spinning process. Suitable adhesives are:- starch and its derivatives, derivatives of cellulose, e.g. carboxymethylcellulose, cellulose-ether &c., alginates, derivatives of albumines, synthetic resins, e.g. melamine and formaldehyde. The adhesive may be in the form of a solution or a dispersion and should have a small tendency to migrate on setting. Preferably the adhesive should form a somewhat elastic bond. The liquid adhesive may be combined with dyes, bleaching chemicals, sizing agents, defoamers, wetting agents or fungicides. The treated band may be heated to set the adhesive. Examples are given in which full details of producing a yarn from a bonded fibrous structure are given.
Patent GB-222761-A (GB)
Title: Improved heel with interchangeable tread
IPC: A43B21/37
Filed: 1924-03-07
Abstract: 222,761. Theis, M. Marsh 7, 1924. Protectors , securing. - In a heel protector of rubber or other elastic material of the kind having an embedded metal plate b formed with tongues c adapted to engage between the heel proper d and an attached metal plate e, the plate e is formed, except at its breast edge, with a downwardly-projecting rim f adapted to form a tight joint with the protector. The protector is additionally secured by a screw g.
Patent GB-139767-A (GB)
Title: An improved motor wheel for cycles and the like
IPC: B62M7/12
Filed: 1920-02-27
Abstract: 139,767. Burlat, A., and Renaudin, A. March 1, 1919, [Convention date]. Spring drives.-An engine 1 is supported in a casing 5 mounted on the hub 6 of a motor-wheel, a pinion 10 on the crank-shaft gearing with a wheel 11 which engages an internally toothed rim on the hub 6. A flexible drive between the shaft 12 and the wheel 11 comprises a member (not shown) mounted upon a square-ended portion of the shaft and secured to a coiled spring, the free end of which engages a recess adjacent the periphery of the wheel.