baber/WOPTO huggingface dataset:
Patent GB-878087-A (GB)
Title: Electroacoustical apparatus
IPC: B06B1/06
Filed: 1958-09-10
Abstract: 878,087. Sound receiving and transmitting devices. RAYTHEON CO. Sept. 10, 1958 [Dec. 9, 1957], No. 29084/58. Class 40 (4). A piezo-electric bender transducer is directly secured by an edge to an acoustical radiator. In one embodiment, Fig. 1, suitable for immersion in water, the radiator comprises a hemispherical steel shell 21 which is closed by a flanged cover plate 22 and sealed by a ring 25, the shell enclosing a circular bender transducer 11 which is made up of barium titanate plates 14, 15 and electrodes 17, 18. The transducer is secured by cement at its edge to the inner surface of the shell, and electrical connection to the electrodes is effected by a coaxial cable 31 which passes through a gland 32 and a plastic cover 35. Suitable dimensions for the various components are specified, and the inertia driving effect of the vibrating transducer in terms of the relative masses of radiator and transducer are discussed. An alternative embodiment, Figs. 2 and 3, comprises a cylindrical aluminium body 41 having a rectangular hollow region 51 extending therethrough, the sides of the hollow being formed with axially extending grooves 52, 53 into which the edges of rectangular piezo-electric plates 55, 56 are fitted. A number of axially spaced transducer elements may be provided in the body as shown in Fig. 2, and the arrangement is sealed by caps 43, 44 and rings 46, 47. A modified arrangement is also disclosed, Fig. 5, in which a cylindrical body 88 is formed with a square cross-section internal opening 89 accommodating a stack of spaced transducer elements 92 in slots 91. Apertures 90 are also formed in the body for circulating air for cooling purposes.
Patent GB-1377799-A (GB)
Title: Preparation of rigid foamed polymers
IPC: C08G18/00
Filed: 1972-06-21
Abstract: 1377799 Foamed carbodiimide linked polymers BASF WYANDOTTE CORP 21 June 1972 [5 Aug 1971] 29093/72 Heading C3C A rigid foamed carbodiimide linked polymer is made by the catalytic condensation of an organic polyisocyanate in the presence of 5-20 parts by wt. of a halohydrocarbon and/or 0À1- 2À0 parts by wt. of water as auxiliary blowing agent. The catalyst for the condensation being 2,4,6, - tris-(dialkanolamino) - s - triazine or 2,4,6 - tris - (N - methylethanolamino) - s - triazine, or either catalyst together with (a) 2,4,6- tris - (dimethylaminomethyl) phenol, (b) o- and/or p-(dimethylaminomethyl) phenol, (c) an organotin compound or (d) 1,3,5-tris-(dialkylaminoalkyl) - s - hexahydrotriazine. The halohydrocarbon may be a chloro-, fluoro- and/  or bromo-methane-ethane and/or -cyclobutane. In the examples a mixture of 2,4- and 2,6- toluene diisocyanate or methylene diphenyldiisocyanate was condensed using as catalyst a mixture of 2,4,6-tris-(N-methylethanolamino)- s-triazine and 1,3,5-tris-(N,N-dimethyl-3-aminopropyl) - s - hexahydrotriazine and as auxiliary blowing agents water or 1,1,2-trifluoro-1,2,2- trichloroethane; the reaction mixture also contained a plasticizer, tris-(2-chloroethyl)- phosphate, and surfactant, a polysiloxane copolymer.
Patent GB-1452339-A (GB)
Title: Medicinal preparation fo r treating malignant neoplasms
IPC: C07C59/70
Filed: 1974-07-02
Abstract: 1452339 Antineoplastic medicines IRKUTSK INST ORGAN KHIM SIBIRSK OTDEL AKAD NAUK SSSR 2 July 1974 [5 July 1973 6 Aug 1973] 29205/74 Heading A5B Pharmaceutical antineoplastic compositions comprise a carrier and the compound tris(2- hydroxyethyl)ammonium orthocresoxyacetate of the formula: They may be in such forms as tablets and injectable solutions.
Patent GB-403209-A (GB)
Title: Improvements relating to electrically operated pumps
IPC: F04B43/04
Filed: 1932-10-19
Abstract: 403,209. Electrically operated pumps. KENT, R. L., and MORRIS, J. N., East Works, Bordesley Green Road, Adderloy Park, Birmingham. Oct. 19, 1932, No. 29227. [Class 102 (i).] In an electrically-operated fuel pump, in which the electro-magnet comprises a winding a on a core b with a cylindrical pole piece c, the disc armature d is guided by means of circular or other struts 12, having spherical ends engaging recesses 10, 11 in the pole piece and armature respectively. A rod m, secured to the armature, operates a snap-over switch, comprising levers f, g pivoted at h and connected at their other ends by a spring i. The lever f carries a contact j co-operating with a contact k mounted on a spring blade l. The pump space is formed between a diaphragm u and a valve-box p, which is secured to a flange o on the pole piece c. The diaphragm is secured to the armature and is clamped between the flange o and the valve-box. The latter contains a filter y and the suction valve q and discharge valve r.
Patent GB-813903-A (GB)
Title: Apparatus for pumping materials in the fluid or semi-fluid state
Inventor: CUNNINGHAM WALLACE
IPC: F04B7/00
Filed: 1954-10-11
Abstract: 813,903. Reciprocating pumps. WINGET Ltd. Dec. 16, 1955 [Oct. 11, 1954], No. 29253/54. Class 102(1). The piston 14 of a concrete or like pump is secured to a cylinder 20 having a piston 21 connected by a rod 23 and crosshead 24 to a pneumatic or like power reciprocating motor. The cylinder 20 contains liquid and opposite ends are connected through non- return valves 29, 37 to opposite ends of a cylinder 45 the piston of which is connected through linkage to rotary inlet and outlet valves 6, 7 respectively. During the pressure and suction stroke of the piston 14 the crosshead 24, piston 21, cylinder 20 and piston 14 move together, the valves 29, 37 being closed. At adjustably predetermined points in the pressure and suction strokes, by engagement with stops 41, 43, one of the valves 29, 37 is opened whereby the piston 21 moves relative to the cylinder 20 causing liquid to be forced through the open valve to one end of the cylinder 45 forcing the piston along whereby the position of the valves 6, 7 is reversed. The stroke of the power motor is adjustable to vary the stroke of the piston 14. In a modification the valve linkage is connected to a crosshead slidable on the rod 23 which is provided with spaced stops engageable with the crosshead simultaneously with the engagement of the valves 29, 37 with the stops 41, 43. The cylinder 45 in this modification is not used and the outlets controlled by the valves 29, 37 are connected together. The pump cylinder includes a housing surrounding the piston 14 through which water passes to clean the piston.
Patent GB-757858-A (GB)
Title: Method of and apparatus for cooling sewing machine needles
IPC: D05B71/04
Filed: 1954-10-11
Abstract: 757,858. Sewing machines. SCHMETZ, F. B. Oct. 11, 1954 [May 14, 1954], No. 29255/54. Drawings to Specification. Class 112. The needle of a sewing machine is cooled by means of a gaseous medium which is blown along the surface of the needle in a direction which is parallel or substantially parallel to the axis of the needle. The Specification describes several modifications of the invention. The duct conveying the cooling medium may be disposed externally of the machine head and end in a nozzle situated adjacent the needle and directed downwardly thereon, the needle bar being notched to clear the nozzle end of the duct. Alternatively, the needle bar may be provided with a bore to which the cooling medium is supplied, said bore communicating either with an orifice or orifices provided in the lower end of the needle bar and adapted to direct a stream or streams of medium externally on the needle; or the bore may communicate with a groove formed longitudinally in the needle. Additionally, the throat plate may be provided with a cavity or cavities for the cooling medium, the latter issuing in a stream or streams directed at the needle while the latter is under the throat plate, when the medium may be directed also against the sewing thread so as to assist in the looping operation. The cooling medium may be in the form of air supplied by a compressor or a pressure vessel. Volatile liquid, such as ethylene chloride, may be introduced intermittently into the air stream. A valve may be interposed in the supply duct to allow a flow of air only when the needle is ascending. The compressor may be in the form of a diaphragm or plunger pump mounted within the machine and driven from the main shaft of the latter to provide an intermittent flow of air. Alternatively, the needle bar may form either the cylinder or plunger of an air compressor, the upper guide co-operating as the plunger or cylinder respectively, when air may be supplied intermittently by providing a non-return valve on the respective ends of the cylinder; or the arrangement may be valveless to provide a flow of air which reverses its direction with the up and down movement of the needle bar.
Patent GB-648665-A (GB)
Title: Improvements relating to alternating current induction motors
IPC: H02K17/16
Filed: 1948-11-12
Abstract: 648,665. Dynamo-electric machines. MEREVALE ENGINEERING CO., Ltd., and ALLISON, A. Nov. 12, 1948, No. 29422. [Class 36] In a squirrel-cage induction motor having an external rotor m, the squirrel-cage conductor bars o are used to secure the end covers p of the machine. The end-covers carry bearings q by which the rotor rotates on a fixed shaft c which supports the internal stator a. The securing nuts s may have a split conical grip with the end covers. In the form shown, for an electric fan, the fan blades are secured to the rotor core, but in a modification (not shown) some of the rotor bars are cast integral with an end-ring and one of the end covers which carries the blades. Alternatively the other end cover which is secured by the conductor bolts as before may carry the fan blades. If required for other drives, pulley or gear wheels may replace the fan blades. Some of the bars may be of high and others of low resistance, and both the bars and end covers may be of iron, brass, copper, aluminium or other metal.
Patent GB-854376-A (GB)
Title: One piece paraffin scraper for well tubing
IPC: E21B37/02
Filed: 1959-08-28
Abstract: 854,376. Oilwells. HUBER CORPORATION, J.M. Aug. 28, 1959 [Aug. 28, 1958], No. 29424/59. Class 85. A scraper for removing paraffin accumulations from well tubing comprises a plate-like member which is wrapped tightly around a sucker rod and held thereon by interlocking lugs. The scraper functions with a ploughing action, rather than a shaving action, the lugs producing furrows in the paraffin accumulation during the reciprocations of the sucker rod, which furrows facilitate the removal of lumps of paraffin by a surface on the lugs which is normal to the axis of the rod. The scrapers, being non-positively attached to the rod, may, if the sucker rod breaks, be tamped along the rod to permit the use of a fishing tool. The scraper shown comprises a thin plate-like body part 11, a lug 15 at one edge and lugs 14, 16, at the other edge, spaced to receive the lug 15 when the device is bent around the sucker rod 17 to align holes 24, 25, 26 to receive a securing- pin 18. The scraper may be supplied in a partially bent form, as in Fig. 3, and the stressing of the scraper around the rod is completed by a vice. The pin may have up-set ends to prevent accidental withdrawal, or very small barbs on the pin may lodge in annular grooves in the lug holes, the pin being driven out when removal is required. The lugs 14, 16 are rounded off at 27, 28 to facilitate insertion in the well casing 40, and the shoulders 34, 36 effect the ploughing action to remove the lumps between furrows made by the lugs. When the lugs are pulled together by the vice, they fulcrum around lines 12, 13, but in modifications the contact lines 12, 13 are omitted. A number of scrapers may be secured on the rod 17. In Fig. XVII, the unbent plate-like body is of triangular form, the lug 64 being at the apex of the triangle and the lugs 65, 66 are at its base. The lug 65 has a flat surface 418 normal to the axis of the sucker rod 67 to produce the ploughing on the up-stroke, but the lower lug 66 is gently rounded off to meet the rod 67 to facilitate running-in. The lugs are coupled by a pin 366.
Patent GB-219861-A (GB)
Title: Improvements in drill and like holders
IPC: B23B31/12
Filed: 1923-11-22
Abstract: 219,861. Rengman, T. Nov. 22, 1923. Turning; chucks.-A device for holding a drill, reamer, milling cutter, countersink, &c. for operation in a lathe comprises a casing 8 having a central aperture 3 to receive the drill &c., which is gripped by crescent-shaped jaws 2 mounted in recesses in a disc 13 rotatable in the casing by a screw 10 and a nut 5 engaging the disc, the jaws receiving an oscillatory movement through pins 9 attached to the casing and passing through slots 11. The casing is made in two parts stayed by pins 7, two of which pass through slots 12 in the disc to limit its rotation. A tommy-bar 14, inserted in an axial hole in the end of the screw 10, may be used for rotating the latter.
Patent GB-1442980-A (GB)
Title: Swing check valve
IPC: F16K15/03
Filed: 1974-07-03
Abstract: 1442980 Valves GROVE VALVE & REGULATOR CO 3 July 1974 [27 July 1973] 29506/74 Heading F2V In a swing check-valve generally as disclosed in Specification 1,441,857 a dished spherical closure member 30 has a frusto-conical closure surface 34 coacting with a like surface on a seat-ring 28. A resilient seal ring 38 is provided in the seat-ring. The closure member has a chordal plate 40 welded to it and the closure surface may be formed on a radius of the sphere. The shaft 44 to which the closure member is attached is connected to a drive shaft (76), Figs. 3, 4 (not shown), via a lost motion connection and a valve operator (86) is capable of rotating the shaft (76) through approximately 90 degrees. The valve may thus be inactivated in a fully opened condition. Indicators are provided to show the position of the shaft (76) and the closure member.
Patent GB-135866-A (GB)
Title: Improvements in and relating to Emergency Repair Attachments for the Hubs of Vehicle Wheels.
IPC: B60B27/00
Filed: 1919-11-27
Abstract: 135,866. Mason, J. H. Oct. 9, 1918, [Convention date.]. Wheel-driving attachments.- An emergency attachment for wheel hubs to allow temporary use of the wheel when the usual parts of the hub are broken or damaged, and adapted for wheels in which the spokes are clamped between a fixed flange F and a detachable plate P by bolts B, consists of a sleeve 1 which is secured to the body H of the hub by set screws 2, and is provided with a flange 3 having apertures 4 to engage the heads of the bolts. The sleeve may have an end plate 5 which overlies the end of the hub and is engaged by the axle-nut 6.
Patent GB-256102-A (GB)
Title: Improved method of mounting transfer photographs and pictures or the like
IPC: B44C5/02
Filed: 1925-11-24
Abstract: 256,102. Freeman, S. Nov. 24, 1925. Pictures, photographs, and the like, mounting. -A wood panel is sunk in the centre and filled in with white or coloured paint or the like. When dry, the surface is smoothed down, and a photograph, picture, &c. is transferred to the centre of the panel. The whole surface is then french polished and burnished, or varnished and polished, and the finished panel is placed in a frame consisting of rounded moulding cut away or grooved to receive the thickness of the panel.
Patent GB-662839-A (GB)
Title: Automatic steering system
IPC: G05D1/08
Filed: 1946-10-04
Abstract: 662,839. Automatic control systems for aircraft. BENDIX AVIATION CORPORATION. Oct. 4, 1946 [Oct. 26, 1945], No. 29670/46. Drawings to Specification. Class 38 (iv). The autopilot described in Specification 662,831 is modified by the substitution of a pair of magnetic pick-up devices rigidly secured to the craft, e.g. on a wing, as the directional reference in place of the gyro-stabilized magnetic pick-up device. The primary windings of the two devices are energized in series and the secondary windings connected in parallel. Specifications 550,399, 565,277, 601,180, [all in Group XXXVIII], and 662,833 also are referred to.
Patent GB-1340180-A (GB)
Title: Process for the preparation of diagnostic agents for primary  hepatoma
IPC: G01N33/543
Filed: 1970-12-16
Abstract: 1340180 Diagnostic agent for primary hepatoma KOWA CO Ltd 16 Dec 1970 [18 Dec 1969 19 Feb 1970 29 July 1970 28 Aug 1970] 29833/73 Divided out of 1339737 Heading B1X A diagnostic agent for primary hepatoma is prepared by adsorbing anti-alpha-1-feto globulin on a particulate carrier medium and dispersing the resulting material in a dispersion medium. The carrier media exemplified are ion exchange resins, polystyrene latex, kaolin; others are mentioned. The carrier particles are preferably spherical with diameters in the range 0.5 to 3 microns. The dispersion medium may be a buffer solution pH 6.5 to 8.5 containing 0.5 to 5 w/v % antibody loaded carrier and optionally dyestuff, preservative, dispersing agent.
Patent GB-955568-A (GB)
Title: Mine roof supporting device
Inventor: DOWTY GEORGE HERBERT
IPC: E21D23/06
Filed: 1961-08-18
Abstract: 955,568. Advancing mine roof supports. DOWTY MINING EQUIPMENT Ltd. Aug. 16, 1962 [Aug. 18, 1961], No. 29906/61. Heading E1E. An advancing mine roof support comprises a series of frames 1 each having a cantilever extension 7 which is automatically projected towards a newly exposed coal face when the cutter 3 undercuts same to release an external force acting thereon. The extension is retracted to preload an energy-storing device such as a helical spring or a length of elastic material when the frame is advanced. The extension is advanced forwardly and upwardly towards the mine roof by suitable guides provided in the roof cap 5, limiting stops being also provided.
Patent GB-621518-A (GB)
Title: Upholstery spring assembling machine
IPC: B21F33/04
Filed: 1946-10-08
Abstract: 621,518. Spring-assembling apparatus. TRIGGS, W. W. (United States Bedding Co.). Oct. 8, 1946, No. 30049. [Class 52 (iv)] Upholstery springs, with their axes horizontal, are inserted in rows between opposed leaf-springs ,22, Fig. 5, at the top of the machine and their end turns engaged in arcuate grooves in opposed carrier plates 13. The arcuate grooves 15, 16, Fig. 6, allow succeeding end turns to overlap in a medial groove 14 along which ,a helical tie-wire is passed and the plates at each end of the rows are fitted with reciprocating cutters 99 by which the tie-wire is severed and its end deformed against a stop 97. While the tie-wire is applied the springs are clamped by a central reciprocating plunger 25 with lateral flanges 30 which can be forced into grooves 17, 18 in the plates by toggle mechanism. When springs are being inserted the plunger 25 is retracted to the left clear of the plates and on actuation of a control lever 95a, Fig. 2, a clutch 53 is engaged and a brake 57 released to allow a motor 51 to rotate a quick-threaded shaft 54 which moves a carriage 70, to which the plunger 25 is coupled, to the right. As the carriage approaches the limit of its travel the plunger is released and completes its movement under its own momentum the toggles being expanded when the flanges 30 abut the right-hand end plate 24 of the machine. The carriage continues to be driven by the shaft until trip devices thereon actuate a control rod 62 to free the clutch 53 and apply the brake 57. Switches are also automatically operated to stop and reverse the motor 51 ready for the next retraction and to start a second motor 124, Fig. 4, for the tie-wire feed 40. Tie-wires in cut lengths are inserted manually through nozzles 46 and are frictionally rotated and fed along the grooves 14. The lever 95a is again operated and the carriage 70 moves to the left, the plunger 25 meanwhile remaining in place. Racks 106 on the carriage operate spur-wheels 107 (which " free-wheel" during the right-hand movement) and these actuate push rods operating the tie-wire cutters 99. Coupling is then automatically effected between the carriage and plunger and the latter is again retracted to the original position and the clutch 53 and brake 57 again automatically operated and the motor 51 reversed ready for the next operation. A switch 126a is also closed which brings into operation gearing driven from the motor 124 which turns through 180 degrees a set of shafts 5, 6, Fig. 5 carrying sprockets and chains bearing the sets of carrier plates 13. The lowermost springs are thereby removed by strippers 47 and the succeeding plates presented ready for insertion of the next row of springs. During this operation a switch is opened which stops the motor 124, the motion of the shafts being completed under momentum of the gearing.
Patent GB-1158012-A (GB)
Title: Fluoring Containing Carboxylic Acids Derivatives
IPC: C07C59/21
Filed: 1966-07-05
Abstract: 1,158,012. α-Substituted fluorocarboxylic acids and derivatives thereof. MONTECATINI EDISON S.p.A. 5 July, 1966 [19 July, 1965], No. 30087/66. Heading C2C. Compounds of the general formula (I) in which Q is a radical C n E 2n+1 , Cl(CF 2 ) n , a C 4-6  perfluorocycloalkyl radical or a C 6 _ 10  perfluoroaryl radical, n is an integer from 1-10, X is F, NH 2  or NHR, Y is OR, SR, Cl, Br or I when X = F or Y = X, when X is not F, Z is OH, OMe 1 , OR, NH 2 , NHR or SR, m Me 1  is a metal having a valency m and capable m of forming a hydroxide, and R is a C 1-12  linear or branched ahphatic radical which may be partially substituted by F, C1, Br or OR, or is a cycloalkyl, phenyl, benzyl, p-alkylphenyl or p-halophenyl radical containing 6-10 carbon atoms, are prepared by reacting a compound of the formula either with a primary, secondary or tertiary amine alone or in the presence of HC1, HBr, HI, ammonia or a base Me(OH) m , or with a thioalcohol, a phenol, a thiophenol, aniline, a para-substituted aniline, ammonia, HC1, HBr or HI or a salt thereof, at a temperature between - 80 C. and + 250 C. and at a pressure between 0À1 and 100 atmospheres absolute. The compounds of Formula (I) alone, other than those in which Y = Cl, are claimed per se. Compounds in which -COZ is an ester group may be converted into compounds in which -COZ is an amide group, a carboxylic group or a salt thereof. Sodium 2-vinyloxytetrafluoropropionate is obtained by treatment of 2-chloroethyl 2-(2-chloroethoxy)-tetrafluoropropionate with sodium hydroxide. Trifluorochloroethylene is obtained by pyrolysis of potassium 2-chlorotetrafluoropropionate.
Patent GB-1198656-A (GB)
Title: New Mechanical Leverage.
Inventor: BROWN ERNEST CHARLES
IPC: F16H21/10
Filed: 1967-06-30
Abstract: 1,198,656. Linkwork. E. C. BROWN. 27 Sept., 1968 [30 June, 1967], No. 30192/67. Heading F2K. A leverage system comprises a substantially semi-circular beam 1, pivotally mounted about an axis 2 adjacent to the mid-point of its curved periphery, and a pivotally mounted beam 3 carrying at one end a load 9 and being connected at the other end 7 by a link 5 to a point 6 located adjacent to the curved periphery of the beam 1 and between the pivot point 2 and the point of application of an effort 8. It is stated that an unusual mechanical advantage is produced. In a modification, the beam 1 is triangular in form.