baber/WOPTO huggingface dataset:
Patent GB-522276-A (GB)
Title: Improvements in and relating to electrical measuring instruments
IPC: G01R19/22
Filed: 1938-12-05
Abstract: 522,276. Current and voltage measurements ; compensating instruments for temperature errors. GENERAL ELECTRIC CO.. Ltd., TURNER, H. C., and TOMLIN, G. M. Dec. 5, 1938, No. 35387. [Class 37] An instrument for measuring current of high frequency over a considerable range of frequency has the secondary winding of the current transformer formed as an even number of separate substantially similar coils arranged to be connected in opposition to a D.C. instrument through rectifiers. The transformer core is formed in two parts 1, 2 carrying similar coils 3, 4. The parts 1, 2 abut against each other and surround an insulating bush through which passes the conductor 5 forming the primary winding. The windings 3, 4 are connected through dry plate rectifiers 6, 7 to a D.C. measuring instrument 8 so as to oppose each other. A variable resistance 9 is included in the circuit of the winding 4. Damping resistances 10, 11 are connected across the coils 3, 4 and condensers 12, 13 are connected across the instrument 8 to by-pass high-frequency currents. The coils 3, 4 are arranged to give their maximum response at the middle of the frequency range over which the instrument is to operate, tuning condensers being connected across the coils if necessary. The core of the transformer may be laminated or may be a dust iron core. Temperature compensation is effected owing to the rectifiers 6, 7 being in opposition.
Patent GB-1362349-A (GB)
Title: Gas generator
IPC: F24V30/00
Filed: 1972-07-28
Abstract: 1362349 Vehicular crash bags DOW CHEMICAL CO 28 July 1972 [2 Aug 1971] 35458/72 Heading B7B [Also in Division F1] The invention relates to a gas generating apparatus such as used for example for inflating a safety gas cushion or crash bag for a motor vehicle. The apparatus shown in Fig. 1 comprises a container 10 having a gas outlet 11 normally closed by a frangible disc 20, a partition member 12 being supported within the container by members 13. The space 15 below the member 12 is divided into two chambers 17, 18 by means of a perforated screen 19, a pyrochemical mixture 22 being contained within the inner chamber 17 and a particulate coolant material 23 within the outer chamber 18, an igniting device 21 being located in the chamber 17. Upon firing of the mixture, the gases pass through the coolant material, through the passage 16 around the partition 12 to the space 14, the gas pressure bursting the disc 11 and the gases then discharging through outlet 11 to inflate the cushion 26. In a second embodiment the gases again pass from the inner chamber 54 to the outer chamber 55 in which is disposed coolant material 58, the gases then passing to the upper compartment 57, through perforations 45 and after bursting the disc 49b discharge through outlet 49a. The pyrochemical mixture may be black powder or gun powder and the coolant material may be powdered carbonates, bicarbonates, nitrides &c.
Patent GB-322103-A (GB)
Title: Improved means for preventing unauthorised interference with door and similar latches
IPC: E05B13/00
Filed: 1928-12-01
Abstract: 322,103. Moodie, A. A. Dec. 1, 1928. Locks, cases for.-To prevent operation of a night latch &c. from outside by gaining access to the inside knob through a broken door-panel &c. a cover or casing is provided to enclose the knob, the cover being removable only when the door is open. A frame a secured by screws b or integral with the lock casing d provides channels g into which flanges h on a cover may be slid from the edge c of the door. An upstanding abutment plate e, integral with frame a or separately secured by screws, closes the inner end of the cover when the latter is in place. The other end k of the cover is cut away as shown to allow passage of the latch bolt m into the staple &c. q. When the door is closed, removal of the cover is prevented by the flange p of the staple abutting against the end k of the cover. In a modification the frame a and flanges h are interrupted to provide tongues which allow application of the cover by a limited sliding movement. In another form, the flanges h have keyhole slots engaging headed screws or projections on the door.
Patent GB-343558-A (GB)
Title: Improvements in and connected with refrigerator chambers
IPC: F25D3/06
Filed: 1929-11-20
Abstract: 343,558. Refrigerator-cars. STONE & CO., Ltd., J., Deptford, and ROWLEDGE, E. G., 23, Felhampton Road, New Eltham, both in London. Nov. 20, 1929, Nos. 35487/29 and 20432/30. [Class 29.] Air cooled by cooling-pipes or elements 11, Fig. 1, situated below the roof of a railway &c. van or by cold-accumulator vessels 26, Fig. 3, arranged in an end compartment of the van is delivered through louvre openings 14, Fig. 1, or nozzles 30, Fig. 3, downwardly through the storage chamber 15, whence it rises through spaces formed by false side-walls 8 and flows back to the cooling-compartment. A false floor 6 may be provided in the storage space, and the louvres, Fig. 1, may be regulated thermostatically as described in Specification 320,412, [Class 29, Cooling &c.]. In the construction shown in Fig. 3 the inter-wall spaces communicate at the top with side return ducts leading to an end space 23 which opens into the bottom of the cooling compartment, and the circulation is assisted by a fan 27. The refrigerating plant may include a compressor 31 driven from an axle 33 in the manner described in Specification 333,580, [Class 29, Cooling &c.], and an air-cooled condenser 28 arranged on the roof beneath a sunshield 29. The evaporator for the cold accumulator vessels 26 may include refrigerant receivers 40 as described in Specification 335,208, [Class 29, Cooling &c.].
Patent GB-1038796-A (GB)
IPC: D01H5/26
Filed: 1964-08-31
Abstract: 1,038,796. Drafting. DEUTSCHER SPINNEREIMASCHINENBAU INGOLSTADT NIEDERLASSUNG DER SCHUBERT & SALZER MASCHINENFABRIK A.G. Aug. 31, 1964 [Aug. 29, 1963], No. 35496/64. Heading D1D. In a device for tensioning a drafting belt 10 comprising a carrier 2 rotatably mounted on a bar 1, the resilient member for loading the carrier may be replaced without removing the carrier from the bar 1. As shown, the resilient member comprises a U-shaped spring 9 which at one end contacts a flat on the bar 1 and at the other end engages a pin 8 on the carrier. In an alternative form, a leaf spring clips on to the bar 1 which is provided with two non-parallel flats, while the other end of the spring engages a slot in a flange on the carrier. In a further form, an arm is keyed to shaft 1 and resilient means in the form of a compression spring or a tube or solid or hollow block of resilient plastics material, placed between the arm and a flange on the carrier. The belt engaging member may be a roller 6 as shown or a non-rotatable bar.
Patent GB-1241004-A (GB)
Title: Improvements in or relating to circular knitting machines
IPC: D04B15/58
Filed: 1968-07-26
Abstract: 1,241,004. Knitting-machines. E. MAYER [trading as MAYER & CIE]. 26 July, 1968 [31 Aug., 1967], No. 35724/68. Heading D1C. Yarn guides 1 of a striping unit are selected by turning a lever 4 about a shaft 5 until its end is positioned above a selected yarn guide whereupon a bar 8 is lowered under the influence of a cam 11 to pivot the lever 4 downwardly which in turn projects the yarn guide such that initially its yarn is taken by a draw or hook 14 drawing the yarn within the needle circle to be taken by the needles. Each guide 1 is associated with its own yarn trapping device 16, 17 and severing devices 20, 21 the parts 17 and 21 being fixed and the parts 16, 20 being pivoted about an axis 18, nose portions 101, 102 on the guide 1 engaging the movable trapping blade 16 which is coupled to the cutting blade 20. Consequently after the yarn has been taken by the hook 15 further lowering movement of the guide releases the yarn from its clamp. A pawl 26 holds the guide in position and on the guide being released it returns to its initial position under spring control the nose 102 engages the member 16 pivoting it to cause it to clamp the yarn and the blade 20 to sever it.
Patent GB-1525024-A (GB)
Title: Wheel assemblies
IPC: B60C29/00
Filed: 1975-08-29
Abstract: 1525024 Wheel and tyre assemblies DSO "TESHKA CHIMICHESKA PROMISHLENOST" 29 Aug 1975 35827/75 Heading B7C A key 6 for inhibiting relative circumferential movement between a solid tyre 1 and a wheel 2 has a cutting edge at one end therof to facilitate penetration of the key into the tyre during mounting of the tyre on the wheel. A detachable flange 3 carries heat-dissipating tongues 4.
Patent GB-491186-A (GB)
Title: Improvements in machines for dispensing paper, linen or like strip or tape
IPC: B65B51/06
Filed: 1937-12-28
Abstract: 491,186. Tape delivering apparatus. KEERS, J. G., and PHILLIPS, A. Dec. 28, 1937, No. 35870. [Class 73] [Also in Groups XVI and XVII] In a machine for delivering paper, linen, or like strip or tape for applying to packages, the tape is fed from a roll through a slot in an approximately horizontal plate over a supporting-member projecting above the surface of the plate and facilitating the application of the tape to the package. The machine is actuated by a treadle or by a motor-driven shaft 12 connected by a belt with a pulley 16 integral with a smaller pulley 17 driving another pulley 19 through a belt 18 tensioned by means of a spring-pressed roller 14. A roller 20 fixed to the pulley 19 coacts with a roller 21 to feed the tape 22 to moisture or adhesive-applying rollers 25, 26 before it issues through the slot 28 in the top plate of the casing and over a roller 29 supporting it while it is being applied to a package. The roller 25 is driven from the roller 20 through gearing 23, 24. A tape-severing knife 13 connected by a lever 31 and link 32 to an operating-handle is held normally in inoperative position by the engagement of a notch 33 in the link 32 with the casing. When the link 32 is released to operate the knife, a stop 34 thereon moves the roller 14 away from the belt 18 to stop the drive of the feed-rollers 20, 21.
Patent GB-349543-A (GB)
Title: Means for the synchronous driving of sound and picture apparatus
IPC: G03B31/04
Filed: 1929-11-23
Abstract: 349,543. Synchronism indicators. KœCHENMEISTER, H. J., 1, F³rtherstrasse, Berlin. Nov. 23, 1929, No. 35961. Convention date, Nov. 23, 1928. Void [Published under Sect. 91 of the Acts]. [Class 40 (iii).] Kinematograph apparatus and sound-recording or reproducing apparatus are driven by separate continuous-current motors which are energized from a common source. The armature of each motor is tapped at two points, 180‹ apart, which are connected to slip rings on which brushes bear, corresponding brushes of the two motors being connected by leads. This arrangement serves to keep the motors running in synchronism. The motors, which are shunt-wound, have their armatures connected in parallel, and are controlled by a common regulating resistance. In the system shown, the field windings b, b<1>, of two motors are connected to a source of current c through a common resistance d. A separate regulating resistance e is also provided in series with the winding b<1>. The windings of each armature a, a<1> is tapped at two points, 180 electrical degrees apart, and the corresponding points on the two armatures are connected through slip rings k, brushes, and leads g, g<1>. The two pairs of leads are joined by a double-pole switch h, in parallel with which are two lamps i, i<1>. When the switch is opened and the motors are started, the lamps flicker unless the motors are in synchronism. By adjusting the resistance e, the speeds of the two motors are equalized, this condition being indicated when the lamps cease to flicker. When the proper adjustment has thus been made, and the lamps are extinguished, the switch h is closed, and synchronism is thereafter maintained automatically.
Patent GB-1267815-A (GB)
Title: Road vehicle suspension systems
Inventor: HILL WILLIAM FRANK
IPC: B60G17/018
Filed: 1968-07-29
Abstract: 1,267,815. Vehicle suspension system with adjustable damping. JOSEPH LUCAS (INDUSTRIES) Ltd. 30 June, 1969 [29 July, 1968], No. 36025/68. Heading B7D. [Also in Divisions F2, G1 and H3] The shock absorbers 7 of a road vehicle suspension system are automatically responsive to the speed of the vehicle, giving a light damping at speeds below a predetermined speed and a heavier damping at higher speeds. Each shock absorber 7 has a pair of restrictors 8, 9 in parallel. With both restrictors operating a lightly damped suspension is produced. With the restrictor 9 blocked by energization, at a predetermined vehicle speed of the winding 10, the restrictor 8 operates alone to produce a more heavily damped suspension. The crown wheel 16 of the differential gear of the vehicle produces  pulses in the winding 15 when the vehicle is in motion, and a voltage dependent on the speed of the vehicle is developed across the capacitor 21. The speed at which the change in damping occurs can be selected by adjusting the resistor 23.
Patent GB-480243-A (GB)
Title: A new and improved crate or box
IPC: B65D67/02
Filed: 1937-12-30
Abstract: 480,243. Boxes. BREET, J. H. M. Dec. 30, 1937, No. 36100. [Class 18] A crate or box, e.g. for bottles, has disposed therein resilient buffers each comprising a top circular portion c and a lower straight portion d having holes e for fixing it to the crate &c.
Patent GB-1120613-A (GB)
Title: A protector for the tips of blades of fencing and similar weapons
IPC: A63B69/02
Filed: 1965-08-23
Abstract: 1,120,613. Fencing foil protector. A. TOLLBOM. 23 Aug., 1965, No. 36112/65. Heading A6M. A protector is fitted to the blade of a fencing weapon, the protector comprising a sleeve which has a closed end and contains electrical contact members and connecting wiring for transmitting a signal in the event of hits. the sleeve being secured to a non- screw threaded tip having projections, by the interpositions of a cylindrical insulating member which is itself secured to the tip by potting. The sleeve may be retained on the insulating member by the interposition of a bush which is internally screw-threaded and screwed on to external threading on the insulating member, one end of the bush engaging in a flange in the sleeve. The protector is illustrated in the Figure, wherein a sleeve 5 is secured to the tip 1 by means of an insulating member 11 When a hit is obtained, one of the following circuits is completed-ring bush 20-sleeve 5-sleeve end 6-central plug portion 25-button 15a or ring bush 20-sleeve 5-sleeve end 6-flange 6<SP>1</SP>-contact ring 22- spring 23-button 15a.
Patent GB-1398030-A (GB)
Title: Method of producing a grinding wheel
IPC: B24C5/08
Filed: 1973-07-30
Abstract: 1398030 Grinding wheels HITACHI SEIKO Ltd 30 July 1973 [31 July 1972] 36169/73 Heading B3D [Also in Division C7] A method of producing a contoured grinding wheel comprises forming a profile on a support disc 1, forming a counter profile 6 on a steel mould 3 by an electrolytic process whereby a predetermined space is produced between the disc and mould, and inserting into the space a mixture 7 of abrasive particles and synthetic bonding agent whereby the mixture is coated on to the contoured peripheral surface of the disc as the disc is rotated. The support disc 1 is formed to the desired profile by a diamond tool (2, Fig. 1, not shown) and may be of metal, a mixture of graphite and abrasive grains bonded by tar pitch, or graphite, abrasive grains, copper powder, and phenol resin so as to be electrically conductive, or be coated with electrically conductive molten metal. The disc is connected to a negative terminal and the steel mould 3 is connected to a positive terminal while an electrolyte 5 is supplied, the mould being moved in the direction of the arrow so that the opposite profile 6 is formed on the mould with a space between the disc and mould. The mixture 7 of abrasive particles and bonding agent 7 is supplied to the space so as to coat the disc during rotation thereof, the mixture then being cured to produce a contoured grinding wheel (8, Fig. 4, not shown). The abrasive particles may be of diamond, boron nitride or boron carbide. The Specification refers to a known method of producing a contoured grinding wheel in which the mould is ground by a ceramic grinding wheel and a space is then provided between the wheel and mould and supplied with the mixture of abrasive particles and synthetic bonding agent.
Patent GB-431906-A (GB)
Title: Marine sounding equipment
IPC: G01S7/521
Filed: 1934-12-18
Abstract: 431,906. Subaqueous audible and like signalling-apparatus. HANSEN, H. S., Box 650, Halifax, Nova Scotia, Canada. Dec. 18, 1934, No. 36237. [Class 118 (ii)] A receiver or transmitter is supported by a pivotal mounting so that it maintains its correct position irrespective of the rolling or pitching of a ship, and a sound-conducting plate is provided across the opening of the chamber in which the instrument is mounted. As shown, the instrument 5 is suspended from the ball-and-socket mounting 7, the leads to the instrument passing through the hollow suspending rod 32. The ball joint is lubricated through pipe 44 and ports 46 and air in the chamber 6 is taken off by vent 47. Water seeping into the upper chamber 17 is drained off by pipe 43. A rubber bumper 46<a> provides a resilient stop for the instrument during extreme rolling of the ship and springs 37 steady the motion and prevent rotation of the instrument. A sound plate 48 is mounted across the opening of the well 6, the plate being insulated from the supporting brackets 50 by rubber gaskets 51. Sufficient clearance to allow sea water to enter the well is left between the plate 48 and the wall of the well 6.
Patent GB-745197-A (GB)
Title: Improvements in or relating to the fractionation of air
Inventor: SCHILLING CLARENCE JOHN
IPC: F25J3/04
Filed: 1953-12-31
Abstract: 745,197. Low temperature separation of air. AIR PRODUCTS, Inc. Dec. 31, 1953, No. 36271/53. Class 8(2). In a low temperature air fractioning process wherein hydrocarbon impurities e.g., acetylene accumulate in a pool 44 of liquid oxygen from above which' product oxygen vapour is discharged through a duct 41, the impurities together with a little liquid oxygen are removed from the bottom of the pool through a valved duct 45 and fed to a secondary fractionating column 46 or a rectification column where the mixture is stripped of low boiling point constituents e.g., residual nitrogen and argon, and the residual hydrocarbon impurity-containing liquid oxygen is passed through a vaporizer 57 and heat interchange passage 64 to an outlet 65 as product oxygen of relatively high purity. The incoming compressed air having traversed a heat exchanger 17 cooled by returning nitrogen, low purity oxygen and the high purity oxygen containing traces of hydrocarbon impurities in passages 32, 42, 64 is fed through ducts 18, 19 to the high pressure column 11 of a conventional two-stage column 10 having a condenser 15. Liquid nitrogen is discharged through a duct 21, a heat interchanger 22 and an expansion valve 24 to the low-pressure column 12 at a point 25 and crude liquid oxygen is directed through an expansion valve 28 and ducts 36, 29 to a point 30 of said column 12. The interchanger 22 may be cooled by a portion of the expanded crude liquid oxygen entering at a point 27 and rejoining the main stream at a point 29, or by lowpressure product nitrogen gas from the head of column 12 traversing valved ducts 39, 40. A boiling coil 50 of the secondary column 46 and the vaporizer 57 are heated by crude liquid oxygen from the column 11 and a minor portion of the incoming air respectively. Said oxygen and air after expansion at valves 61, 52 serve to cool a condenser 49 and to provide reflux for the column 12 at a point 55. The nitrogen-argon mixture leaving the column 46 is fed to the product nitrogen passage 62. In a modification the hydrocarbon impurity containing liquid oxygen is stripped of oxygen and argon in a rectification column having a boiling coil traversed by a minor portion of the incoming compressed air, and the vaporization of the residual liquid is also effected by a portion of said compressed air.
Patent GB-423213-A (GB)
Title: Improvements in or relating to thermionic valve circuit arrangements
IPC: H03G3/22
Filed: 1933-12-27
Abstract: 423,213. Valve circuits for wireless reception. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Dec. 27, 1933, No. 36419. Convention date, Dec. 27, 1932. [Class 40 (v)] [See also Group XXXVI] A circuit of regulatable amplification comprises a valve having at least four grids, two of which are at zero or negative potential relative to the cathode, and two at a positive potential, one of the former being adjacent the cathode and the other being between the two positive grids. In one embodiment, Fig. 2, the signal is applied to the first grid and the bias on the third grid is variable for controlling the amplification. Both negative grids may be simultaneously controlled and a resistance may be added in the positive grid circuits to enhance the effect owing to the diminution of the current in these circuits which increases the potential on the positive grids, Fig. 3,. (not shown). In an arrangement for automatic volume control, two such valves HV1, HV2, Fig. 5, are arranged as high frequency amplifiers in cascade and feed a diode rectifier DR from whose load resistance R1 are led volume control potentials through a filter R2, C to both negative grids G1, G3 of each valve. A low frequency circuit suitable for amplifying the output of an alternating current bridge for balancing purposes comprises a valve with its inner grid G1 Fig. 6, supplied with the bridge output, two grids G2, G4 maintained at a positive potential and a grid G3 controlled in potential by the rectified output from the valve derived from the load resistance W of a rectifier CR fed from the output transformer T. The output is arranged to be so controlled as never to exceed the range of an indicating instrument i in the rectifier circuit. The Specification as open to inspection under Sect. 91 comprises also circuits using the valve described above for modulation and demodulation. In one embodiment, Fig. 10 (Cancelled), the incoming signals are applied to both the negative grids SCG and H from the circuit IC and the demodulated signals appear in the anode circuit which may contain a resistance W common to the grid circuits and which produces automatic volume controlling potentials which are applied to the signal grids. A portion only of the signal from the circuit IC may be applied to the grid H. For heterodyne reception of amplitude or frequency modulated waves, the grid SCG is fed with incoming signals and the output of a local oscillator of correct phase and amplitude is applied to the grid H. The local oscillations may be obtained by backcoupling the anode A circuit to the grid H circuit and may be controlled as to frequency and phase by the incoming signals. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specification 408,256.
Patent GB-972287-A (GB)
Title: Improvements in expanding screw anchors
Inventor: CROESSANT GEORGE FREDERICK
IPC: F16B29/00
Filed: 1960-10-25
Abstract: 972,287. Expandible screw sockets. MOLLY CORPORATION. Oct. 25, 1960, No. 36519/60. Heading F2H. An anchor device for panels and the like is made from a sheet metal blank, Fig. 1. A central portion 1 is used to form an end boss 11, Fig. 14, in a series of passing operations and the thickened centre of this boss is threaded at 12. The arms 1a Fig. 1, of the blank are notched at 1e and bent up from the boss while the free ends of the arms are bent outwardly to form arcuate segments which are enclosed by a washer 26, Fig. 14. When a screw 19, Fig. 15, is tightened with the anchor device inserted in a panel 17 the arms collapse behind the panel to retain the screw boss. U.S.A. Specification 2,559,181 is referred to.