baber/WOPTO huggingface dataset:
Patent GB-680179-A (GB)
Title: Improvements in or relating to pumps and bushings therefor
IPC: F04C15/00
Filed: 1950-11-10
Abstract: 680,179. Rotary pumps. BORG-WARNER CORPORATION. Nov. 10, 1950 [Dec. 14, 1949], No. 27521/50. Class 110(ii) In a pump having end pressure-loaded bushes, for sealing purposes, the bushes are eccentrically arranged relative to the rotor axis giving a larger area 26 opposite to the delivery part of the pumping chamber than that 22, opposite to the inlet part of the pumping chamber. As applied to a gear pump, with gears 9, 10, pressure fluid passes through a duct 38, near the pump outlet 19, to the back of the bushes 15 which may move telescopically with respect to members 34, sealing means 35 being provided between the two members 15, 34. A groove 24 allows leakage fluid to pass to the pump inlet. A recess 30 is also in communication with the pump inlet by way of a duct 31a. Springs 37 give initial loadings to the bushes before pump delivery commences. The aperture 24, provided in each bush 23, is made larger than the shaft 11, for adjustment purposes. Lubrication is allowed for by means of a duct extending along the aperture 27. A bevelled area 39 may extend partially around the forward face of each bush 15. adjacent the outlet 19 allowing the connection of outlet pressure and a zone of lower pressure. The invention may be applied to vane pumps.
Patent GB-1015968-A (GB)
Title: Melt-spinning process and apparatus
IPC: B29C48/92
Filed: 1964-07-03
Abstract: 1,015,968. Melt-spinning apparatus. CANADIAN INDUSTRIES Ltd. July 3, 1964 [July 4, 1963], No. 27560/64. Heading B5B. In a melt-spinning apparatus comminuted solid filament-forming material flows from the feed hopper 4 (Fig. 1) through control valve 5 and pipe 6 into the cylinder 1. By rotation of the screw 7 the material is carried downward to the melting grid 9 through which the melt percolates and flows through the ducts 22 and 23 in the heating jacket to the metering pump 24. During the period of screw rotation, screw 7 and the thrust member 11 mounted on the upper part of the screw shaft ascend and raise the piston 18 against air at lower pressure introduced into the chamber 12 through the air line 19. When the screw 7 has reached a predetermined upper position a control disc 16 mounted on the shaft of the screw and ascending with it operates control switch 21 through lever 17 and rod 21. The power to motor 15 which rotates screw 7 through speed reducer 14 and member 13 is thereby shut off and simultaneously a signal is transmitted via electrical conductor 35 to solenoid-operated 3-way valve 31. The valve thereby cuts off the flow of lower pressure air received through line 32 and regulating valve 28 and permits higher pressure air received through line 29 and regulating valve 27 to pass into chamber 12 via line 19. Higher pressure air acting on piston 18 serves to urge the now non- rotating feed screw 7 downward forcing the melt through conduits 22, 23 to pump 24. When a predetermined lower limit of the feed screw 7 is reached, the switch 21 is closed by the control disc 16 and rotation of the feed screw thereby resumed. At the same time the solenoid-operated 3-way valve 31 is actuated to supply lower pressure air to the chamber 12. The pressure applied to the melt between grid 3 and pump 24 is thus automatically maintained at a constant value and the uniformity of the denier of the filaments produced thereby improved.
Patent GB-258114-A (GB)
Title: An improved apparatus for planing or cutting various articles
IPC: B43L23/06
Filed: 1925-11-03
Abstract: 258,114. Perry, E. S. Nov. 3, 1925. Pencil sharpeners.- A guide bar j mounted behind a fixed knife e is inclined thereto both horizontally and vertically. The ends of the bar rest in notched discs k, the notches being of different depths for purpose of adjustment. A support for the pencil may be arranged to slide on the guide bar.
Patent GB-1479484-A (GB)
Title: Typewriters or similar machines
IPC: B41J7/64
Filed: 1974-06-21
Abstract: 1479484 Typewriters TRIUMPH WERKE NURNBERG AG 21 June 1974 [22 June 1973] 27711/74 Heading B6F A type carrier 5 is rotated for character selection by a stepping motor 1 driving a gear 3 meshing with a toothed segment 4 on a movable member 24 coupled to the type carrier by flexible drive means 10. The member 24 may pivot at 6 and be coupled to a roller 9, about which the flexible drive means 10 passes, by a belt or cable 7 which winds about part of the member 24. Alternatively the movable member may be arranged for linear movement. The flexible drive means 10 may be a belt, band, cable or chain and is connected to a spring drum 14 to which the spindle 16 of the type carrier 5 is fixed. The member 24 may have two basic positions I, II corresponding to case shift positions.
Patent GB-1268873-A (GB)
Title: Method of and apparatus for plasticising food
Inventor: MEIER ERICH
IPC: A23D7/02
Filed: 1969-06-02
Abstract: 1,268,873. Mixing foodstuffs. E. MEIER. 2 June, 1969 [1 June, 1968], No. 27729/69. Heading B1C. Frozen butter blocks 5 are broken up by rotating breaker arms 4 and metered by a screw 8 to a plasticizing screw 12 where the temperature is raised substantially exclusively by internal friction; the butter is then pressed through stationary perforated discs 14, 15, 16, 17 which alternate with rotatable knife stars 18 (which may be separately driven). The discs 16, 17 are relatively rotatable to vary the degree of alignment of the perforations whereby back pressure and degree of frictional heating may be altered. A temperature sensing device 21, 22 controls electrically the drives of the breaker arms 4, screws 8, 12 and/or knives 18 and the relative positions of the discs 16, 17. The product is discharged to a further mixer 27 arid packing machine 29.
Patent GB-1490135-A (GB)
Title: Overspeed safety control mechanism for rotary tools
IPC: F01B25/06
Filed: 1975-07-01
Abstract: 1490135 Engine stop gear CHICAGO PNEUMATIC TOOL CO 1 July 1975 [28 Aug 1974] 27732/75 Heading F1K [Also in Divisions B3 and G3]  A ball 38 is confined in a hole 39 in the periphery of a body member 36 attached to an end (17), Fig. 1 (not shown), of a rotor shaft of an air motor, the ball being movable by centrifugal force out of the hole into closing relation with an inlet port 28, upon development of predetermined centrifugal force on the ball. The ball may be guided by a track 42, 43 into the port after escaping from the rotating hole by overcoming the retaining forces of the ends of a spring ring 41 embracing the body. The motor may be adapted to drive a surface grinding wheel (21, Fig.1) and the body member 36 may also carry fly weights (33) of a speed control governor valve sleeve (34) cooperating with a port (26). Once expelled the ball may be retained in the port 28 by a seal (28a) and cannot be returned to the hole 39 without dismantling the motor.
Patent GB-1452747-A (GB)
Title: Charge coupled devices
IPC: H01L29/423
Filed: 1973-06-11
Abstract: 1452747 Charge coupled devices DEFENCE SECRETARY OF STATE FOR 4 June 1974 [11 June 1973] 27748/73 Heading H1K A CCD comprises a semi-conductor substrate with input and output diodes at one surface thereof and between them a row of grooves with a layer of insulation which is thicker between the grooves than in them and set of charge transfer electrodes on the insulation in the grooves and a further set on that between the grooves. A typical device may be formed using thick oxide masking for etching the grooves which masking is retained during growth of thin oxide in the grooves and aluminium deposition which provides discrete electrodes in the grooves and on the thick oxide between them, the electrodes being connected in pairs by further metallization. Alternatively, after grooving, a strip of thick oxide is removed at one edge of each groove prior to thin oxide formation with the result that the required inter-connection of the electrodes in pairs is produced automatically in the aluminium deposition step. Every second or third pair of electrodes is inter-connected to enable two or three phase operation.
Patent GB-871269-A (GB)
Title: Method of and means for deep drawing sheet material
IPC: B21D24/14
Filed: 1959-08-14
Abstract: 871,269. Cupping. BUDD CO. Aug. 14, 1959, No. 27812/59. Class 83 (4). A method of forming articles from a sheet metal blank by deep drawing by means of a punch moved transversely to the blank while permitting marginal portions of the blank to move towards the centre of the punch against restraining forces is characterized by the step of keeping the ratio between the size of the instantaneous zone of deformation and the restraining force virtually constant during the entire forming operation so that the stretching of the blank is the same in all successive instantaneous zones of deformation. A draw-press for carrying out the method has a base 10 supporting columns 11 which carry a stationary head 13 and a fixed lower blank holder 12. Slidably mounted on'the columns is a movable head 16 operable by a hand wheel 15 and a screw 14. An upper blank holder is connected with the piston-rods 18 of fluid pressure cylinders 20 secured to the movable head. Fluid pressure is supplied to the cylinders via a camoperated control valve 23. The press punch 28 is operated by a piston 26 in a fluid pressure cylinder 25 controlled by a valve 31. A cam member 35 connected to the piston-rod 27 operates the cam follower 38 of the control valve 23 to supply pressure fluid to the upper work-holder cylinders. In operation, the movable head 16 and the upper blank holder is raised by the screw 14 so that the blank can be placed on the lower blank holder. The punch is in its lowermost position. The movable head is then lowered until the upper blank holder engages the workpiece. As the punch is raised the cam 37 admits pressure fluid to the cylinders 20 to gradually increase the pressure of the blank holders on the margins of the workpiece so as to maintain a constant wall thickness in the drawn workpiece throughout the drawing operation. After removal of the workpiece from the press the marginal portions 45 are trimmed off adjacent the cupped portion. In an example, cupped articles from stainless steel and titanium of diameter 6 inch are formed from blanks of 11 inch diameter and 0.025 inch gauge using an initial pressure of 450 lb. per square inch and increasing to 1050 lb. per square inch.
Patent GB-869368-A (GB)
Title: Improvements relating to resilient bushes
Inventor: WEBB RONALD RICHARD
IPC: F16F1/38
Filed: 1957-09-04
Abstract: 869,368. Securing bushes on shafts. CLAYTON-WRIGHT Ltd., HOWARD. July 31, 1958 [Sept. 4, 1957], No. 27871/57. Class 80 (2). [Also in Group XXXII] The inner sleeve 11 of a resilient bush 12 is secured on its mounting pin by split tapered rings 14 pressed into engagement with tapered openings 13 at the ends of the sleeve. The elasticity of the rings may be increased by providing notches 17 in the outer flanges 15.
Patent GB-520628-A (GB)
Title: Improvements in and relating to aerials for radio receiving systems
IPC: H01Q5/48
Filed: 1938-09-24
Abstract: 520,628. Aerials. BELLING & LEE, Ltd., and STRAFFORD, F. R. W. Sept. 24, 1938, No. 27873. [Class 40 (v)] In an aerial system comprising in combination a dipole 1, 2 with transmission line 6 and a reflector 3, the latter is adapted to be used as an aerial for reception on the long and medium wavebands by connecting it to a receiver through screened matching transformers 16, 17, 20, 23 and screened transmission line 19, 22. The line 4 comprises the spacing rod support for the dipole 1, 2, from which it is insulated, and the reflector 3 to which it is electrically connected. In Fig. 3 the adjacent ends of the dipole are connected to the spacing rod 4 through a centre tapped choke 25 which has a low reactance at medium and long wavelengths but offers a high impedance at high frequencies.
Patent GB-1505167-A (GB)
Title: Apparatus for feeding multilayer webs
IPC: B41J15/16
Filed: 1975-07-02
Abstract: 1505167 Web guiding DATA RECORDING INSTRUMENT CO Ltd 25 June 1976 [2 July 1975] 27877/75 Heading B8R A web guiding device in a printer having a pair of endless pin feed members 11 associated with platen 3 is located diametrically opposite the feed members and comprises a peddle wheel 17 having four radial arms 18 which accommodate the differential stresses induced in a manifold stationery 1 fed to the platen.
Patent GB-1491850-A (GB)
Title: Construction of slant axis rotary fluid-machines
IPC: F03C2/30
Filed: 1976-07-05
Abstract: 1491850 Rotary positive-displacement fluid machines CATERPILLAR TRACTOR CO 5 July 1976 [12 Nov 1975] 27904/76 Heading E1F In a nutating-disc-type rotary fluid machine the annular side walls 18 joining the inner and outer part-spherical surfaces 16, 14 of the housing and the side walls of the rotor flange 36 are curved in the radial direction to reduce deflections thereof during operation. The part-spherical surface 14 is defined by a pair of half-shells 44 joined via bolts passing through aligned apertures 64 in pairs of flanges 11, the shells having annular slots 50 in which are clamped the peripheries of the housing members 46 defining the side walls 18. The latter may be convexly or concavely curved.
Patent GB-716948-A (GB)
Title: Improvements in or relating to automatic electric circuit breakers and trip devices therefor
IPC: H01H71/16
Filed: 1952-11-07
Abstract: 716,948. Automatic circuit-breakers. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Nov. 7, 1952 [Nov. 23, 1951], No. 28066/52. Class 38(5) A trip device for a circuit-breaker, similar to that of Specification 582,446, comprises a bimetal strip 75 in the form of a U, one leg 81 of which is secured at 79 to the base, and the other leg carrying a latch 87 normally restraining a lever 89 of the circuit-breaker, the legs of the strip being so arranged as to, compensate for ambient temperature changes. Only a portion of the strip is heated by the current in the protected circuit. As shown, the portion between mounting 79 and a flexible connection 91 is heated and the high expansion side of the strip is on the inside of the loop. In a modification (Fig. 3. not shown), the other portion of the strip is heated, a flexible connection coming from the free end of the strip, and the high expansion side is on the outside of the loop.
Patent GB-279840-A (GB)
Title: Improvements in or relating to operating or controlling devices or appliances
IPC: F16C1/16
Filed: 1927-10-22
Abstract: 279,840. Poirmeur, L. I. Oct. 26, 1926, [Convention date]. Control mechanism. -A manual operating device for tensioning a Bowden or like flexible cable 26, which may control a sliding shutter fitted on a petrol tube &c., comprises a rotary stud 16 integral with a guide flange or collar 18 and knob or handle 19 and formed with lugs 24 riding on cam surfaces 10 provided on a sleeve 9 retained in a casing 1 by screws 11 engaging recesses 12, the sleeve being pressed up against the screws 11 by a spring 13 so that it may yield to avoid straining the cable 26 and to facilitate engagement of the shaped ends of the lugs 24 with retaining notches 25 in the cam surfaces. The cable 26 passes through a boss 6 and the casing 1, and through the operating stud 16, being secured thereto by a screw 21.
Patent GB-748844-A (GB)
Title: Improvements in supporting and weighting means for the upper rollers of textile drafting appartus
Inventor: BENYON JOHN
IPC: D01H5/50
Filed: 1953-10-13
Abstract: 748,844. Roller mounting and loading arrangements. T.M.M. (RESEARCH), Ltd. Oct. 13, 1954 [Oct. 13, 1953], No. 28154/53. Class 120 (2). In roller supporting and loading means for textile drafting apparatus the upper rollers are supported at their extremities between two pivotal arms (independent of arms supporting axially adjacent rollers), incorporating roller loading springs energized when the arms are locked in the operative position, the arrangement being such that each pair of arms and the rollers supported therebetween are capable of movement to and from the operative position as a unit. In the arrangement shown upper rollers 121, 131, 141 and 151 are suspended at each end between a pair of arms 16, 17 (16 not shown) pivoted on a fixed rail 18 extending longitudinally of the roller stand 10 and supported thereon by brackets 19. The arbors of the rollers are carried in bearing brackets 20 which can be adjusted longitudinally of the arms 16 and 17 and each of which houses a plunger 21 loaded by a spring 22. The force exerted by springs 22 can be adjusted by screws 23. The arms 16 and 17 are locked in the operative position by a catch 24 which engages a lug 201 on one of the bearing brackets 20.
Patent GB-306446-A (GB)
Title: Continuous process and furnace for the thermal treatment of metals and other substances
IPC: C21D11/00
Filed: 1928-10-02
Abstract: 306,446. Infra Soc. Anon., (Assignees of Sorrel, V., and Lafont, L. A.). Feb. 20, 1928, [Convention date]. Resistance furnaces.-In a furnace for heattreating metals, and other substances in which the latter are fed continuously at e into a muffle furnace C heated by resistances 1 and are retained in a magnetic field created in the muffle by a magnet, coil, or electromagnet 2, the poles 3 of which encircle the muffle until they are demagnetized, the metals &c. from a continuous chain under the mutual magnetic attraction, the chain being adapted to push forward with the assistance of gravity the metals &c. in front which have become demagnetized. The metals &c. reaching the end of the furnace are then discharged from the furnace into a tempering bath. For special steels, which require heating to a slightly higher temperature, an auxiliary chamber g heated to a slightly higher temperature is provided and an abutment h holds the steel in this chamber until it is heated to the required temperature. Non-magnetic substances are enclosed in a magnetic envelope before being fed into the furnace.
Patent GB-925703-A (GB)
Title: Improvements in or relating to magnetic alloys
Inventor: PARKIN BERNARD GEORGE
IPC: H01F1/147
Filed: 1958-09-03
Abstract: A nickel-iron alloy containing 28-40% Fe and also sufficient of one or more of Mo, Cr, W and Mn to produce a resistivity in excess of 40 microhm. cm. is subjected to heat treatment in a magnetic field at a temperature between 400 DEG  and 490 DEG  C. for a time (not less than 6 hours) sufficient to impart a rectangular hysteresis loop to the material.  The amounts of Mo, Cr, W or Mn should exceed 1.5%, 2%, 3% and 4% respectively.  When both Mo and W are present these should exceed 1% each.  The strength of the magnetic field should be at least ten times greater than the coercive field of the alloy.
Patent GB-302764-A (GB)
Title: Improvements in electrical gramophone pickups
IPC: H04R11/08
Filed: 1927-10-25
Abstract: 302,764. Hough, T. Oct. 25, 1927. Magnetic instruments.- The armature 5 of a gramophone pick-up is provided with a collar or plate 7 held in position by washers 8 of semi-flexible material, such as soft leather, fibrous material, or hard rubber. The washers prevent the rotation of the armature and are forced against the collar by two plates 9, 10 secured together by screws 11. The collar 7 and the plates 9, 10 may be slotted or grooved. One or both washers may be replaced by springs. The pole-pieces 15 are pivotally mounted on screws 17 which pass through the permanent magnet 14 and hold the plate 10 in position.
Patent GB-323511-A (GB)
Title: Improvements in and relating to machine tools
IPC: B23B47/18
Filed: 1928-10-03
Abstract: 323,511. Evertite Locknuts, Ltd., and Garrard, C. G. Oct. 3, 1928. Combined turning and drilling-machines; driving machines.-The tool or cutting device of a machine tool is fed by servo-motor and means, such as described in Specification 291,478 are provided to prevent excessive speed of feed. A worm wheel 12 driven by a worm 10 carries, by projections 13, a ring 15 with friction corks or the like 17. A hollow shaft 21 carries a gear 30, adapted to drive the tool feed, and a clutch disc 20. A spindle 24 in the shaft 21 carries a handle 27, a pin 28 of which engages an inclined slot. 29 in said shaft, and rotatably mounted clutch disc 19 which engages pins 22 mounted in the disc 20. When the handle 27 is turned in the same direction as the wheel 12 the spindle 24 moves the disc 19 towards the disc 20, against the action of springs 23 and the shaft 21 and wheel 30 are turned, thus automatically releasing the clutch unless the handle 27 is turned through a further angle. The tool may be returned by reverse movement of the handle. The rate of feed of the tool after engaging the work is limited by preventing the shaft 21 from rotating faster than a slowly driven worm-wheel 35 as described in Specification 291,478. The wheel is driven from the shaft of the worm 10 through interchangeable reduction gearing. The device may be used to operate the toothed bell crank levers 31 of the prior specification by arranging the gear 30 to actuate toothed lever 52 Fig. 6 secured to the right handed bell crank 31.
Patent GB-793515-A (GB)
Title: Improvements in or relating to dyeing
Inventor: HARDING ARTHUR JACOB IMMINS
IPC: D06P1/651
Filed: 1954-10-04
Abstract: The process for dyeing wool to produce an ingrain or melange or two-colour effect of Specifications 680,862 and 740,003 is modified in that the dyestuff employed is one which will dye wool and which contains one sulphonic acid group and at least one carboxyl group in the molecule or is a premetallized chrome dyestuff containing one sulphonic group in the complex and in that the aqueous solution at the beginning of the dyeing treatment has a pH below 4.4.  Examples are given.
Patent GB-290507-A (GB)
Title: Improvements in or relating to valve-operating tappets
IPC: F01L1/14
Filed: 1927-10-27
Abstract: 290,507. Renault, L. Aug. 10, 1927, [Convention date]. Casting processes. - In camoperated valve tappets, the plate or head 4 which bears on the cam is of harder metal than the rod 1 and is cast hereon. To obtain good adhesion, the rod end is coated with nickel, tin, &c., and may be splayed or provided with a neck, toughnesses or holes, or with lugs 6. The face 5 of the head may be hardened by chilling, the corresponding part of the mould being, for this purpose, metallic.
Patent GB-445118-A (GB)
Title: Improvements in or relating to wireless apparatus
IPC: H03C1/00
Filed: 1934-10-06
Abstract: 445,118. Supporting telephone instruments. SCHUCHTER, K., 26, Hottingergasse, Innsbruck, Austria. Oct. 6, 1934, No. 28640. Convention date, April 27. Addition to 427,053, [Group XL]. [Class 40 (iv)] [See also Group XL] In a radio transmitter em ploying a modulating system as described in the parent Specification, the microphone 7 is suspended by elastic con nections 71 on a frame 72 Fig. 6, which also carries the microphone transformer 6 The frame 72 is detachably mounted on the panel 68 by clips 73, 74 with pins 75, 76 for making electrical connec tions. A base-board support ing the valve 1 and coils 2, 3 as well as other valves and apparatus comprising the transmitting set, extends behind the panel 68.
Patent GB-519802-A (GB)
Title: Improvements in or relating to electrostatic condensers
IPC: H01G4/008
Filed: 1938-10-04
Abstract: 519,802. Coating with metals ; electric condensers. BOSCH GES. R. (formerly BOSCH AKT.-GES. R.). Oct. 4, 1938, No. 28736. Convention date, Oct. 4, 1937. [Class 82 (ii)] [Also in Group XXXVI] In an electrostatic condenser a length or strip of insulating material is used on which a coating of base metal, e.g., aluminium, magnesium, cadmium, or zinc, is juxtaposed alongside and is in electrically conductive connection with a coating of a noble metal, e.g., copper or silver, which covers the surface adjacent at least one edge of the strip. The coatings preferably overlap as shown in the figure in which a paper strip 1 is coated adjacent its edge with a noble metal 3 which overlaps a coating of base metal 2. The coatings may be applied by vaporization in vacuo, the base metal being applied first and the nobler metal immediately afterwards so that no oxide film has formed on the base metal and alloying can take place where the noble metal overlies the base metal.