baber/WOPTO huggingface dataset:
Patent GB-825290-A (GB)
Title: Improvements in or relating to power-assisted steering mechanisms for road vehicles
Inventor: FARMERY GEORGE KENNETH
IPC: B62D5/06
Filed: 1956-05-16
Abstract: 825,290. Vehicle power steering. CLAYTON DEWANDRE CO. Ltd. May 14,1957 [May 16, 1956], No. 15299/56. Class 79(5) A power-assisted steering mechanism includes two valve members 14 which normally occupy neutral positions wherein they maintain opposite sides of the piston of a motor 6 under equal pressures and which are operable selectively by rotational movement of the steering wheel 2 and through a sun and planet gear 30 to interrupt communication between the opposite sides of the piston and connect one of them with a source of fluid pressure to cause operation of the motor. One sun wheel of the differential is connected to the steering wheel and the other to the worm in the steering box 1 while the planetary gears 32 are freely mounted on a spindle 33 engaged by spring-loaded plungers 37 and tappets 36 secured to the valve members 14. When the steering wheel is turned, the relative rotation between the sun wheels causes the spindle 33 to displace one of the valve members 14 until it engages a valve member 27 which is lifted off its seat 25 to permit compressed air from a line 9 to flow into the space above the displaced valve 14 and through a line 11 to one end of the motor 6, the valve 27 having first closed a passage in the stem 14b of the displaced valve 14 so that communication between the two lines 11 which were previously connected by a passage 22 is interrupted. The steering movement of the road wheels is transmitted back to the sun wheel on the steering worm until the spindle 33 allows the valve 27 to re-engage its seat 25. When the steering wheel is returned to straight ahead position communication between opposite ends of the motor 6 is restored. Extended rotation of the steering wheel causes the member 14 to be moved until a sealing ring 19 is withdrawn from a bore 15 so that the end of the motor 6 opposite to that connected to the compressed air supply is connected to atmosphere through line 11, passage 22, annular slot 16 and passage 18. The steering worm is threaded so that the reversal of the steering wheel movement by the differential gear is corrected for manual steering. The motor 6 is preferably connected to the drop arm 3 which is also connected to the worm gear of the steering box. It may be replaced by two single-acting, spring-return motors.
Patent GB-108149-A (GB)
Title: Improvements in Gyroscopic Direction Indicating Apparatus.
Inventor: TANNER HARRY LAURENCE
IPC: G01C19/38
Filed: 1916-10-27
Abstract: 108,149. Tanner, H. L. July 19, 1916, [Convention date]. Gyroscopic compasses.-In gyroscopic com. passes of the type described in Specification 100,490, the co-operating gyroscopes have different ballistic measurements or rates of precession. Preferably two oppositely-rotating gyroscopes having equal moments of inertia are employed, mounted so that one is more pendulous than the other, the gyroscopes being mounted for rotation about vertical axes in a frame or support which rotates about a vertical axis, and being interconnected by yielding means adapted. to exert torques about their vertical axes or by opposite oscillations about their horizontal axes. In a preferred construction, one of the gyroscopes is maintained in a definite relation to the support and the other is connected to the support by yielding centralizing- means. The strength of these two yielding means are made proportional to the ballistic measurements of the two gyroscopes. The unstable gyroscope, that is, the one rotating oppositely to the normal direction of a gyroscopic compass and tending to leave the meridian is caused to become inclined oppositely to the stable gyroscope and so to add to the directive power. In the construction shown in Figs. 1 and 2, the yielding interconnecting means consists of a spring 48 secured to the lower ends of brackets 49, 50 secured to the gyroscope casings 40, 41. The yielding centralizing-means connecting the gyroscope 40 to the main frame 30 consists of an adjustable torsion-wire suspension 34<1>, Fig. 5. The means for maintaining the gyroscope 41 in a definite relation to the frame 30 comprise a motor 22, which is geared to the frame 30 and is controlled by the action of trolly contacts 51, 55, 54 carried by the gyroscope and main frame. The connections for driving a motor 22 by a three-phase current are shown in Fig. 3. The main winding 55 of the motor is connected to two phases of the generator 56 and a tap 57 is taken off from between the ends of this winding and connected, preferably through a resistance 60, to oppositely-wound teaser windings 58, 59 of the motor 8 which are connected through the contacts 53, 54 respectively to the third phase of the generator. In a modified construction, the lever-arms 49, 50 shown in Fig. 2 are made of different lengths so that it is unnecessary to employ a torsion suspension for one of the gyroscopes.
Patent GB-962224-A (GB)
Title: Improvements relating to thermostats
IPC: G01K5/32
Filed: 1960-05-03
Abstract: 962,224. Temperature-responsive actuating- elements. SVENSKA A. B. GASACCUMULATOR. May 3, 1960 [Aug. 28, 1959; Sept. 17, 1959], No. 15493/60. Heading G1D. A thermostat comprises a container 2 filled with a thermally expanding and contracting substance 1 and having one wall formed with a sleeve 18 which protrudes into the substance and is apertured to define a cylinder for guiding a piston 19 located between a yielding region of the substance and a cavity 42 formed inside the sleeve. The material 1 is preferably soft rubber and between it and the piston 19, material having greater wear resisting properties may be arranged (Fig. 4 not shown). Such material may comprise a hard rubber skin, two thin skins with a lubricant between them, or small particles of hard rubber, glass or steel balls. The thermostat shown operates a valve 30 in a hot-water space-heating system. Expansion or contraction of the rubber 1 moves the piston 19 to open or close the valve 30. Pressure in the rubber above a predetermined maximum is relieved by the lifting of a safety piston 16 against the action of a spring 14. Normal pressure in the rubber is maintained by a spring 21. The space 42 within the sleeve 18, the spaces in which the springs 14 and 21 are housed and the space within a tube 25 extending between the valve and the thermostat, are filled with a silicone grease, and these spaces may communicate with one another. The thermostat is set to different temperatures by diminishing or increasing the volume of the rubber container 2 by turning a hand-wheel 8 and consequently moving a piston 3. If the ambient temperature drops unduly causing contraction of the rubber, a spring 4 under the piston 3 acts to maintain a minimum pressure by raising the piston. The cross-sectional shape of the piston 19 may be circular, square or elliptical. In a modification, a cavity may be formed inside the rubber 1. This cavity may be filled with a liquid such as silicone oil and may communicate with a bulb remote from the thermostat. Specifications 962,223 and 962,225 are referred to.
Patent GB-1537191-A (GB)
Title: Vegetation trimmer
IPC: B24B19/16
Filed: 1977-04-14
Abstract: 1537191 Vegetation filament-cutter C B PITTINGER 14 April 1977 [14 April 1976] 15547/77 Heading A1F The filament 222 comprising the cutter is trimmed by an abrasive member 220. The member 220 can be electrically heated.
Patent GB-595478-A (GB)
Title: Improvements in or relating to machines for craping paper and other material by means of rubber bands
IPC: B31F1/16
Filed: 1945-06-19
Abstract: 595,478. Creping paper &c. LILLA EDETS PAPPERSBRUKS AKTIEBOLAG. June 19, 1945, No. 15582. Conventiondate, Jan. 8. [Class 141] [Also in Group VIII] A machine for crÛping paper &c. comprises an endless thick rubber band which is passed over cylinders of relatively small diameter, the paper being brought into contact with the outside of the band where it is tensioned over a cylinder and crÛped transversely as the outside of the band subsequently contracts. As shown in Fig. 1, the rubber band 12 passes over two cylinders 13, 14. If a paper web 17 is led on to the band it will be crÛped at the point 23 where the band leaves the cylinder 13 and its outer side becomes untensioned. The crÛping effect may be increased by the addition of cylinders 15, 16 which cause the outside of the band to assume a concave curvature. This effect may also be produced by means of a guiding plate. In the construction shown in Fig. 3, the paper is brought on to the band at the point 27 and held in contact with it by a belt 26 passing over rollers 25. The band 12 may be provided with non-elastic or less elastic material on its inner surface. The Specification as open to inspection under Sect. 91, describes also a machine, Fig. 1 (Cancelled), wherein a rubber band 1 is driven by cylinders 2, 3, and is led between obliquely disposed rollers 5 which cause it to widen. The cylinder 2 may have a helical groove from the middle towards the ends to keep the band widened. The paper 6 is fed on -to the band where it leaves the cylinder 2 and is crÛped longitudinally as the band contracts. A polished plate 10 or a rotatable -cylinder may be arranged to bear upon the paper. In a modification, the paper web is passed between two similar bands 1, both of which are stretched by obliquely disposed rollers. Insteadof the rollers for widening the band, it may be provided with longitudinal grooves, the cylinders being provided with corresponding grooves, those on the cylinder 2 being wider 'than those on the cylinder 3. In a further construction shown in Fig. 8, (Cancelled), the rubber band is in the form of a tube 30 the ends of which are secured to discs 31 rotated by shafts 32 inclined to the axis of the tube so that the band is lengthened and contracted during each revolution causing the paper, which is held against it by a stationary plate or band, to be crÛped longitudinally. The cylindrical band 30 may be stiffened by a cylindrical plate 33 or rings 34 or a helical band 35. In the various constructions, the paper may be held against the rubber band or tube by air blast or suction. The rubber band may be expanded in two directions so as to crÛpe the paper both transversely or longitudinally simultaneously, or transverse and longitudinal crÛping may be effected in separate steps. This subject-matter does not appear in the Specification as accepted.
Patent GB-1115534-A (GB)
Title: Improvements in electric hair-cutting machines
IPC: B26B19/28
Filed: 1967-04-05
Abstract: 1,115,534. Hair Clippers. R. BOSCH G.m.b.H. 5 April, 1967 [6 April, 1966], No. 15615/67. Heading B4B. In a hair clipper of the kind having a housing mainly comprising two longitudinal shells, the housing having separate spaces for accommodating a driving motor and a transmission in the form of a bevel-gear drive, an upper blade is mounted for reciprocating movement above a fixed lower blade and is driven by bevel gearing 40, 43, and an angled support 24 contains a bearing 39 in which is mounted the front end of the motor armature shaft 19 carrying the bevel pinion 40, the crown wheel 43 also being mounted in the support 24. A removable cover 4 is located above a cable lead-in 6, an auxiliary switch 7, a suppressor capacitor 16, and brush holders (37), Fig. 4 not shown). The longitudinal shells 1, 2 and the cover 4 are made of electrically insulated material. The rear bearing 10 of the shaft 19 is accommodated through the intermediary of an 0-ring 12 in complementary recesses in the shells 1, 2. A partition 21, 32 dividing the motor space from the gear space has an aperture for a felt ring 22 which is pushed on to the shaft 19 to provide a grease-tight seal. The crown wheel 43 is die-cast or injection moulded from synthetic material without any machining operations. The upper blade is reciprocated by means of an arm 29 which is oscillated about a bearing pin 28 by means of the crown wheel 43 acting through a crank-pin 42 and a block 44 slidably disposed in a box-shaped guide 45.
Patent GB-705357-A (GB)
Title: Dual fuel valve
IPC: F02M61/10
Filed: 1952-06-20
Abstract: 705,357. Reciprocating pumps. FRENCH, L. O. June 20, 1952 [Aug. 11, 1951], No. 15669/52. Class 102 (1). [Also in Groups XI, XXVII and XXIX] A fuel valve assembly specially adapted for controlling the injection of fuel into internal combustion engines comprises a check valve 25 which may be the delivery valve of the pump and opens outwardly with respect to a fuel inlet passage 11, a fuel control valve 18 opening inwardly towards the check valve, a spring 28 interposed between the valves and normally urging them to their closed positions, and wedging means arranged between the valves and cooperating with wedging surfaces on both valves whereby opening movement of the check valve under fuel pressure moves the wedging means to effect opening movement of the fuel control valve 18. The valve 25 is carried by a hollow stem or sleeve 26 with passage 27 at its upper end and an inclined surface 30 at its lower end. The wedging means shown in Figs. 1 and 2 comprises a resilient metal tube 34 slotted at 35 to form. wedge members 36 having surfaces 38 adapted to co-operate with the inclined surface 30. The upper edges of the members 36 cooperate with an inclined surface 29 at the top of the valve 18. The valve 18 which has flats or grooves 18a and a pintle projection 19 is guided in a fuel discharge member 14 having a valve seat 17. The member 14 is screwed into the main housing 10 and holds the seat member 20 of the check valve in place by means of a sleeve 21. The opening movement of the check valve 25 and therefore of the fuel control valve 18 is limited by a sleeve 51. In a modification, the tube 34 is replaced by two or more equally spaced balls 46 mounted in radial grooves 47 in the upper end of the fuel discharge member 14. The balls 46 co-operate with the surfaces 29, 30 and are retained by a ring 48 having a gap or notch to facilitate their assembly. The fuel discharge member may be in two parts held in the housing 10 by a screwed ring. In this form the valve 18 and the check valve have plane end surfaces. In a further modification the wedging means are formed as two diametrically disposed pivoted members pressed apart by a split spring ring.
Patent GB-991051-A (GB)
Title: Improvements in or relating to lingoes for looms
Inventor: STRACH LOTHER
IPC: D03C3/40
Filed: 1963-04-20
Abstract: 991,051. Lingoes. SAMUEL DRACUP & SONS Ltd. April 15, 1964 [April 20, 1963], No. 15671/63. Heading D1E. A stretchable rubber lingoe 1 has its ends secured by being nipped between the convolutions of coil springs 2, 3.
Patent GB-259515-A (GB)
Title: An improved crepe-rubber soled boot or shoe
IPC: A43B13/32
Filed: 1926-06-22
Abstract: 259,515. Lovell, J. F. June 22, 1926. Connecting uppers to insoles and soles. - A crepe rubber sole A is stuck to a rubber binder or insertion B surrounding an undersole C, which, with the binder, is previously sewn, riveted, or screwed to an upper D and insole F. A filler H of crepe rubber or other suitable inaterial is used to give additional adhesion to the sole A. Specifications 16014/00 and 201,362 are referred to.
Patent GB-367664-A (GB)
Title: Back head construction for rock drills
IPC: E21B1/30
Filed: 1931-05-29
Abstract: 367,664. Lubricating percussive drills. CHICAGO PNEUMATIC TOOL CO., 6, East 44th Street, New York, U.S.A.-(Assignees of Nell, G. M. ; 6201, 2nd Boulevard, Detroit, Michigan, U.S.A.) May 29,1931, No. 15734. Convention date, July 15,1930. [Class 12 (ii).]' A bush 9a inserted in the back head of a percussive drill forms an annular chamber 14a therein containing lubricant. When the tool is working pressure fluid from the throttle valve 32 enters the lubricant chamber through channels 32a, 28 and forces oil through the restricted passage 31a into the twist mechanism and thence through a small space 34, 35 into the pressure fluid in channel 36. Lubricant is thus supplied to the forward end of the tool. Oil also passes through the passage 33. When the throttle is closed the pressure in chamber 14a is relieved.
Patent GB-388732-A (GB)
Title: Improvements in radio frequency receivers
IPC: H03D1/08
Filed: 1931-05-29
Abstract: 388,732. Wireless receiving-apparatus. DUBILIER CONDENSER CO. (1925), Ltd., Victoria Road, North Acton, London.- (Assignees of Nyman, A. ; Dobbs Ferry, New York, U.S.A.) May 29, 1931, No. 15762. Convention date, May 31, 1930. [Class 40 (v).] An electrostatic loud-speaker is operated by amplified high-frequency oscillations without preliminary rectification. As shown in the Figure, the received waves are amplified successively by the valves 3, 4 followed by the push-pull pair 5, 6, and the tuned output circuit 38 is connected across the speaker 40. Plate voltage, grid bias, and filament current for the valves are taken from a potentiometer 3a connected across a D.C. supply 1, 2. Screengrid valves are employed, and the plate of valve 3 is directly connected to the grid of valve 4, both being connected to the supply potentiometer through a tuned circuit 3b. By-pass condensers 17, 33 are provided in the grid circuits of valves 3, 5, 6, and a condenser 17a is connected between the screen-grid tap 13 for the valve 3 and the filament tap for the valve 4. Other forms of radio-frequency circuits, such as tuned transformer couplings and triode valves, may be employed, Fig. 1 (not shown).
Patent GB-470204-A (GB)
Title: A device for threading the needle of sewing machines
IPC: D05B87/00
Filed: 1936-06-06
Abstract: 470,204. Sewing-machines. HONNE, I. A. June 6, 1936, No. 16876. Convention date, June 6, 1935. [Class 112] A threader for eyed sewing-machine needles is automatically returned to inoperative position by movement of the needle after threading has taken place. The threader comprises a hook 1 carried by a block 2 sliding in a guide 4 carrying needle-locating wings 5, 9. The block 2 is carried by an arm 3 adjustably connected to an arm 12 fixed to a horizontal plunger 16 mounted in a casing secured to the sewing machine 23 by a bracket 20 and band clip 21. Assuming the threading device is in the inoperative position shown in the broken lines in Fig. 1, the knob 17 of the plunger is turned by hand. The threader arm 12 then travels along the helical groove 19 in the plunger casing as it moves into threading position and snaps behind the blade spring 26 which holds it with the V-shaped pairs of wings 5, 9 in position to contact the needle, and with the inclined abutment 30 engaging the needle bar 38. The needle is then raised by manually turning the fly - wheel of the machine. The threader approaches the needle as the clamping screw 29 of the needle rides along the inclined abutment 30, the V-shaped guides 5, 9 ensuring that the hook 1 enters the needle eye when opposite thereto. The thread is laid in the hook 1 and the needle depressed. The screw 29 rides down the abutment and pushes the arm 12 away from the needle, pulling the threaded hook through the needle eye and so threading the needle. The thread is removed from the hook 1 after the needle is threaded either by forming the wings 9 with a projection 40 to engage the thread, or by modifying the groove 19 so that the hook is given a short rapid threadcasting movement. As the arm 12 is pressed backward by the screw 29, it moves laterally in the groove 19 till it snaps past the spring 26, when the spring 18 in the horizontal casing returns it to inoperative position.
Patent GB-1544185-A (GB)
Title: Radiation-sensitive material
IPC: G11B7/243
Filed: 1976-04-20
Abstract: The radiation-sensitive material serves for recording information by optical means. The material is decomposed thermally by an energy between 10 and 100 mJ/cm<2>. After recording, the information can be read out without further processing. The material comprises a transparent substrate with a light-impermeable As-Se layer of a thickness between 200 and 2,000 @. The radiation-sensitive layer is coated with a protective covering layer, which is not damaged by the action of recording energy. The material requires considerably lower energy densities than hitherto. A greater edge sharpness of the information track can be obtained.
Patent GB-805812-A (GB)
Title: Device for preventing the misting over of observation windows for inspection into vacuum plants in which substances such as metals are evaporated
IPC: F27B5/04
Filed: 1957-05-20
Abstract: <PICT:0805812/III/1> Misting on the observation window 4 of a vacuum metal evaporation plant is prevented by supplying a current of argon from a container 8 controlled by a needle valve 7 and directed against the inner face of the window by a nozzle 10.  The latter is enclosed by a cylinder 11 partially closed at the inner end by one or more diaphragms each formed with a viewing aperture 13.  The invention may be combined with known devices such as removable blinds, protective glasses, wipers, pinhole diaphragms or cooled diaphragms.
Patent GB-354427-A (GB)
Title: Improvements in or relating to clips or securing devices
IPC: B62J1/28
Filed: 1930-05-23
Abstract: 354,427. Pillion seat attachments. MELLANO, A. V., 6, Queens Drive, Thames Ditton, Surrey. May 23, 1930, No. 15927. [Class 136 (i).] A clip is slotted to receive a strap attached to a pillion seat, the strap being clamped by the clip against a carrier bar or the beaded edge of a mudguard. The clip may be of the band type, Fig. 1, with the ends drawn together by a bolt B. The strap C passes through slots A<1>, A<2> the edges of which are turned over. Alternatively the clip may comprise a U-shaped member with arms drawn together by one or more bolts G. With this type a single strap slot F<2> is provided, either at the closed end, Fig. 4, or near the open end, Fig. 6. The arms of the U-shaped member may be hinged together. Specification 346,280 is referred to.
Patent GB-882349-A (GB)
Title: Pump piston
IPC: F16J15/32
Filed: 1960-05-05
Abstract: 882,349. Pistons. AMERICAN IRON & MACHINE WORKS CO. Inc. May 5, 1960 [May 22, 1959], No. 15939/60. Class 122 (1). A pump piston comprises a body 20 having a radial flange 30 and a rubber &c. seal ring 35 clamped against the flange by an annular flexible plate 50 releasably secured to the piston and tapering in cross-section with its thinnest portion at its outer periphery. The plate 50 is frusto-conical, has a hub 51 and is retained in position by a snap ring 53 engaging a groove 54 in the body 20. The portion 36 of the seal ring 35 adjacent the flange 30 is reinforced with fabric layers and the seal ring has a flexible lip 39 and an end face 37 conically dished with an apical angle such that, before the piston is inserted in its cylinder, a space 61 exists between the end face 37 and the opposing face of the plate 50. When the piston is inserted in the cylinder 70, Fig. 2, the space 61 is filled by deformation of the lip 39. In the double-acting piston shown in Fig. 1, a seal ring 35 is provided on opposite sides of the flange 30 which has wear-indicating grooves 31, 32.
Patent GB-1309794-A (GB)
Title: Process for irradiation cross-linking of elastomers
IPC: C08F291/00
Filed: 1970-04-03
Abstract: 1309794 Radiation cross-linking of rubbers SOC MAPA-FIT and COMMISSARIAT A L'ENERGIE ATOMIQUE 3 April 1970 [4 April 1969] 15980/70 Headings C3E and C3P A latex of a rubber containing a polyhalogenated compound and/or an ethylenically or acetylenically unsaturated compound is irradiated to cross-link the elastomer in a process characterized by adding up to 1% by weight of sulphur or an organic compound containing sulphur to the latex before or after irradiation.