baber/WOPTO huggingface dataset:
Patent GB-401828-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J17/04
Filed: 1932-08-02
Abstract: 401,828. Discharge devices. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Elektricitats-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) Aug. 2, 1932, No. 21689. Convention date, Aug. 1, 1931. [Classes 39 (i) and 40 (v).] In a discharge device having a hot cathode and an internal control electrode to which is applied an alternating potential adjustable in magnitude and phase to ensure initiation and maintenance of the discharge, means responsive to thermal radiation from the cathode are provided to influence the voltage condition of the control electrode whereby the discharge is prevented from occurring until the temperature of the cathode has reached a predetermined value. A load 10, Fig. 1, is supplied through a valve 1 from a transformer 6. An alternating potential for the electrode 4 is obtained from a secondary winding 7 and the phase relationship with respect to the anode potential is obtained by means of the condenser 8 and the resistance 9. A bimetallic strip 13 is adapted at a certain temperature of the indirectly-heated cathode 2 to be disconnected from a contact 11 to open a circuit comprising a battery 14 and a resistance 15 and thus to remove a negative potential on the grid. In a modification, a condenser 8, Fig. 2, and resistances 16, 17 are connected across the winding 7, the grid being connected to a point between the condenser 8 and resistance 16. The thermal switch 18 is closed at a certain temperature of the cathode to shortcircuit the resistance 17 to shift the phase of the control grid potential by 180 degrees. In a further modification, the voltages of thermal elements 2a, 2b are applied through an amplifier 24 to a relay winding 25 which is adapted to open relay contacts 27, 28 to shift the phase of the control grid potential by 180 degrees. The thermal responsive means may consist of a photo-electric cell.
Patent GB-1309184-A (GB)
Title: Apparatus with an oscillating armature motor
IPC: H02K33/04
Filed: 1971-04-19
Abstract: 1309184 Dry shavers N V PHILIPS GLOEILAMPENFABRIEKEN 19 April 1971 [2 March 1970] 21700/71 Heading B4B [Also in Division H2] In an appliance such as a dry shaver or massager wherein a work-head is driven by an oscillating motor 5 mounted in a housing 2, the the motor having a stator 6 to the pole end of which is secured a carrier 11 on which an oscillating armature lever 9 is pivoted, the carrier is fixed relative to the housing by a positive connection and the stator is secured to the housing by a clamp connection which permits enforced relative movement between the stator and housing whereby dimensional changes in the housing occurring, for example, under extreme temperature and humidity conditions do not alter the position of the lever 9 with respect to the work head, or the length of the air gap. As shown in Fig. 2, the carrier 11 comprises a pair of plates riveted to the stator and the positive connection comprises a pair of pins 19 secured to the housing and force-fitted in apertures in one of the plates. The clamp connection consists of a pair of screws 21 passing through enlarged bores 22 in the stator. The carrier may comprise a single plate (8), Fig. 5 (not shown), and the positive connection may be formed by an extension of the axle (12) on which the lever is pivoted, the extension entering a bore in the housing. Fig. 3 shows a dry shaver with a shaving head 25 and a long hair cutter 26 driven in unison by the lever 9. The positive connection consists of a projection 34 on the housing which enters a bore 35 in one plate 32<SP>1</SP> of a two-plate carrier similar to that shown in Fig. 2, whilst the clamp connection comprises a single screw 21. Additional clamp connections are provided for the carrier and consist of a pair of screws (40) passing through enlarged holes in plate 32<SP>1</SP> into threaded projections 37 on the housing. A single such additional connection is provided in the previous embodiment.
Patent GB-288887-A (GB)
Title: Improvements in yarn winding machines
IPC: B65H54/16
Filed: 1927-08-18
Abstract: 288,887. Altemus, J. K. Aug. 18, 1927. Winding - machines; clearing- apparatus; moistening yarns in winding-machines; thread-guides; tension-arrangements. - A yarnwinding machine wherein the yarn is moved transversely of its line of travel relatively to the guide devices to distribute wear comprises a winding-spindle 5, Fig. 1 and 3, supporting the bobbin 22, a yarn supply 25, and a horizontal bar 51 which is reciprocated by a cam device actuated by the vertically-reciprocable builder-rail 14 to traverse the yarn 26 laterally over the guides 30, 32, 33. The yarn 26 passes successively through or over a yarn-rectifying device 27, a guide 28, tension discs 29, the guide 30, an emulsionapplying roller 31, a glass or like guide rod 32, the traversing guide 33 projecting from a sleeve 35 on the building-screw 36, and a slitclearer 70 to the bobbin 22 The winding-spindle 5 is driven by friction discs 8, 10 and the builderrail 14 is reciprocated vertically by cams 19 through poker-bars 15. The bar 51 is supported on grooved rollers 49 and carries, for each winding-spindle 5, a bracket 61, adjustable thereon, having a yarn-engaging porcelain, glass or like roller 63 and supporting by a second bracket 65 a vertical bar 64 having a yarn-engaging surface 67 extending over its length, The bar 51 is reciprocated by a lever 52 fulcrumed at 53 and actuated by a pin 57 on the rail 14 working in a cam-slot 56, the throw of the lever 52, being adjustable by a bolt-and-slot connection 60. During winding, the yarn is held against the roller 63 and the bar 64, and is thereby moved backwards and forwards laterally over the guides 30, 32. 33. The yarn rectifying device is formed of wire having a series of arms 38 diverging outwardly in alternate succession from the yarn path and serves to remove loops.
Patent GB-1344101-A (GB)
Title: Breathing valve
IPC: A62B9/02
Filed: 1971-04-19
Abstract: 1344101 Breathing valves AGA AB 19 April 1971 [5 March 1970] 21823/71 Heading AST A breathing valve comprises a housing 10 with a breathing opening 9, an inhalation valve 17, a lever 4 and a control diaphragm 6 arranged to control the valve 17 by the lever, the breathing valve having means to provide an overpressure region 8 delimited by the control diaphragm 6 and a second diaphragm 3, and first and second exhalation valves 7, 18 respectively leading into and out of the region and operable to allow exhalation through the region by way of the exhalation valves, there being an overpressure in the breathing opening during inhalation and exhalation. An overpressure is produced in the breathing valve when lid 13 is adjusted to a position in which springs 1, 2 are compressed against diaphragm 3. A control spring 1 loads lever 4 via a central stud 5 and diaphragm 6 causing inhalation valve 17 to be opened for an inflow of gas. Some of the gas flows into region 8 via valve 7 to equalise the pressures in the inlet chamber 15 and region 8. The pressure increases until a balance is obtained between the forces on diaphragm 3 and spring 1. The inhalation valve 17 then closes when balance has been achieved and a sealing spring 2 loads the circumference of the diaphragm 3 so that the overpressure is maintained. Thus, upon inhalation the pressure in the inlet chamber 15 decreases and diaphragm 6 exerts a force on lever 4 which causes valve 17 to open and gas to flow into chamber 15. During exhalation the exhaled gas is expelled through valve 7 into the region 8. The increase in pressure causes diaphragm 3 to open allowing the exhaled gas to pass through holes 14 in the adjustable lid 13.
Patent GB-625042-A (GB)
Title: Improvements in or relating to thermionic valve oscillation generators
IPC: H03C5/00
Filed: 1946-07-22
Abstract: 625,042. Valve modulating circuits; frequency modulation. AIRMEC LABORATORIES, Ltd., (formerly P.R.T. LABORATORIES, Ltd.), and FELDMAN, A. July 22, 1946, No. 21866. [Class 40 (v)] A thermionic valve oscillation generator comprises a multi-grid valve so arranged that one of the grids acts as a virtual anode, the modulating potentials being applied to that grid to produce on the output circuit both frequency and amplitude modulated oscillations dependent upon the applied modulations. As shown in Fig. 1, the generator comprises a pentode V, the grids G1, G2 and cathode K together with the circuit C, C1, C2, L and R constituting the oscillating circuit. Modulating signals from terminals 1 are applied to the grid G2 which forms the virtual anode of the generating circuit. The requisite standing positive potential for the grid G2 is obtained from a potentiometer 8 shunted across a H.T. source. In a modified oscillator (Fig. 2, not shown), the output is taken from the tuned circuit. Audio-modulating frequencies applied to the screening grid G2 initiate capacity variations between the cathode K and the grids G1, G2, the arrangement being such that the frequency variations of the generated oscillations are proportional to the amplitude of the signal impressed on G2. The output of the generator therefore includes a frequency-modulated component in addition to the amplitude-modulation which, if desired, may be suppressed by known methods. The modulation depth may be varied by the condensers C1, C2, while the frequency of oscillation is maintained constant. Inter-electrode capacity due to anode feedback is prevented by the negatively biassed suppressor grid G3. The generator is particularly suited for frequencies of the order 30 mc/s. and above.
Patent GB-168061-A (GB)
Title: Method for working multiple-stage steam ejector installations with at least one intermediate condenser
IPC: F01B25/00
Filed: 1921-08-17
Abstract: 168,061. Maschinenfabrik Oerlikon. Aug. 18, 1920, [Convention date]. Aspirating-apparatus, ejector.- Steam-operated two-stage air and gas ejectors, typically those employed as the air-punjps of steamengine condensers, are regulated, to ensure maintenance of a suitable pressure-difference between the suction of the second stage and the delivery to atmosphere, by means of an automatic control of the cooling effect produced by the condenser for the working-steam that is placed between the stages. According to the arrangement of Fig. 1, steam is supplied by pipes h to the first-stage ejector a, drawing from an intake b, and to the secondstage ejector f, drawing from an intermediate surface-condenser c. The condenser pressure is communicated by a pipe o to a spring-loaded piston m controlling a valve k in the cooling-water supply pipe d of the condenser, the arrangement being such that when the condenser pressure falls so low as to throw an undue load upon the secondstage ejector the supply of cooling-water is cut down ,and the diminished efficiency of the condenser results in a better pressure-ratio for the second-stage ejector. Three alternative methods of controlling the condenser are described, according to one the pressure therein is caused to regulate the height of overflow from the condenser, which is of the surface variety. According to another, steam is admitted in variable quantity to the cooling-water of a jet condenser, and by the third the condensed-water outlet from the intermediate condenser is given a U-tube communication with the main condenser, whereby the liquid level therein, dependent upon the relative pressures, may either flood the intermediate condenser upon occasion, or may by means of a float actuate one of the preceding methods of regulation.
Patent GB-174890-A (GB)
Title: Improvements in or relating to saw blades
IPC: B23D61/12
Filed: 1921-08-17
Abstract: 174,890. Mathis, K. Aug. 17, 1921. Saws.-The teeth of a saw blade intended to cut in both directions are arranged in sets of adjacent pairs of teeth, each adjacent pair being oppositely placed. Between adjacent sets a symmetrical tooth 3 is placed, which may be equal in height to the other teeth.
Patent GB-196533-A (GB)
Title: Improvements in carousels
IPC: A63G1/26
Filed: 1922-08-11
Abstract: 196,533. Miller, W. S. Aug. 11, 1922. Roundabouts. - In roundabouts comprising a main rotatable turntable 1 on which are mounted rotatable turrets 2 each carrying cars 3, the turrets 2 are driven by bevel pinions 5 fixed to each turret and meshing with pinions 7 on radial shafts 6 which carry other bevel pieces 7 meshing with a fixed pinion 4 coaxial with the turntable 1. The turntable is driven by a prime mover such as 8 through bevel gearing 10, 11. Specifications 16030/90 and 21854/98 are referred to.
Patent GB-643242-A (GB)
Title: An improved work driving carrier for grinding machines and the like
IPC: B23B33/00
Filed: 1948-08-20
Abstract: 643,242. Work carriers. COVENTRY GAUGE & TOOL CO., Ltd., and CHESHIRE; D. J. Aug. 20, 1948, No. 21951. [Class 83 (iii)] A work-driving carrier for driving workpieces from the workhead of a grinding- machine has a driving-arm 6 rigid in the direction of rotation of the carrier but resilient in a direction parallel to the rotational axis. The arm 6 consists of one or more leaf springs provided at the free end with a block 7 which is clamped by two screws ir a fork 9 secured to the face plate 10. The work is gripped by a member 1 and a screw 4.
Patent GB-734561-A (GB)
Title: Improvements in and relating to hayrake attachments for tractor vehicles
IPC: A01D76/00
Filed: 1953-08-10
Abstract: 734,561. Hay-rakes. DAVIS, W. G. Aug. 10, 1953 [Oct. 8, 1952], No. 21986/53. Class 6 (3). A tractor-mounted hay-rake comprises tines 9 pivotally mounted on a shaft 11 supported by brackets 12 on a transverse bar 13 which is attached by shafts 14 to the tractor axlehousing 2. The tines are raised by contact with a rod 19 suspended by curved arms 20 which are connected to hydraulic lifting links 5. The ends of the rod 19 are connected by members 22 to a transverse rod 21 connecting the arms 20. The upward and downward movement of the tines is limited by a rod 23 extending transversely above the tines.
Patent GB-1425467-A (GB)
Title: Weighing machines
IPC: G01G1/24
Filed: 1972-05-11
Abstract: 1425467 Weighing apparatus GIRLING Ltd 19 Feb 1973 [11 May 1972] 22036/72 Addition to 1304391 Heading G1W The weighing machine of Specification 1304391 is modified by the provision of at least one adjustment device for at least one of the hinge providing support members 14. In a first form of adjustment device, two threaded rods 51 provided with nuts 52 extend across each cut-out 23 in coverplate 19 and replace the bolts 22 in Specification 1304391 which serve to hold the side plate 20 of member 14 clamped to uprights 12. Adjustment of the nuts 52 allows the distance between side plate  20 and plate 16 to be adjusted. In a second form of adjustment device, threaded rods 53 are welded  to member 14 and are used with nuts 54 (one only of which is shown for each threaded rod 53 in the Fig.) to fasten the brackets 33, 34 to the girders 32, adjustment again being achieved by means of nuts 54. In a third form of adjustment device, a cut-out 55 is provided at each location where a transverse girder 25 is attached to a plate 16. A threaded rod 56 extends across the gap and is attached to the cover-plate on one or both ends. The transverse girder 25 is connected to plate 16 via brackets 28 which are adjustably fastened on rod 56 by nuts 57. The girder 25 is clamped to the brackets 28 by fibre pads 27. Adjustment devices may be provided at all the locations specified.
Patent GB-1302251-A (GB)
IPC: H01L27/08
Filed: 1970-05-07
Abstract: 1302251 Semi-conductor devices; resistors PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 7 May 1970 [10 May 1969] 22067/70 Headings H1K and HIS A resistor 1 in an integrated circuit comprises two or more elongate zones 4 of equal width and depth, and preferably also equal length, connected together at their ends by two common electrical connections 6, 7. The connections 6, 7, e.g. of Al, may be situated as shown on zones 5 of the resistor integral with the elongate zones 4, or may alternatively interconnect discrete zones 4. In the embodment shown the zones 4, 5 and a further zone 8 comprising another resistor 2 are formed by B-diffusion into an n-type epitaxial layer on a p-type Si substrate. Ge and III-V compound semiconductors are also referred to. Al tracks 18-21 interconnect the resistors 1, 2 to each other and to other circuit elements such as transistors, diodes or capacitors. The resistor zones 4 and 8 may be, for their major parts, buried beneath surface zones of the same conductivity type as the epitaxial layer.
Patent GB-1268815-A (GB)
Title: Improvements in or relating to phloroglucinol derivatives
IPC: A61K31/135
Filed: 1969-04-30
Abstract: 1,268,815. Phloroglucinol derivatives. ORSYMONDE. 23 April, 1970 [30 April, 1969], No. 22118/69. Heading C2C. Novel compounds I (including salts thereof) where R 1  is Me or Et, R 3  is H, C 1-4  alkyl optionally hydroxy substituted or is aralkyl and n is 1, 2 or 3, excluding 3-(3<SP>1</SP>,5<SP>1</SP>-dimethoxphenoxy)-1- isopropylamino-2-propanol, are made by reacting II with an appropriate alkoxy substituted phenol in the presence of caustic soda and subsequently reacting the resulting oxirane, e.g. 3- (3<SP>1</SP>,5<SP>1</SP>-diethoxy -phenoxy)-1,2-propylene oxide, with R 3 NH 2 . Pharmaceutical preparations having cardiac, anti-anginal and sedative effects and having activity to block α- and #-adrenergic effects contain I as active ingredient; administration is, e.g. parenterally.
Patent GB-262504-A (GB)
Title: An improved ball and float valve or cock
IPC: F16K31/24
Filed: 1925-09-04
Abstract: 262,504. Dyer, S. Sept. 4, 1925. Ball and float valves. - In a ball and float valve of the type comprising a float-operated sliding outlet tube controlling a valve member in the form of a loose ball, the ball is arranged to close and seal the outlet tube to cut off the flow. In a convenient arrangement the ball valve member 7, Figs. 1 and 2, is disposed in a compartment of the casing so as to seat upon and close the outlet tube 8, as shown in Fig. 1, to close the valve. In the open position of the valve, as shown in Fig. 2, the ball is left supported on a flange 5 with the upper end of the outlet tube open for the passage of water from the inlet 3.
Patent GB-1082887-A (GB)
Title: Met allurgical lance
IPC: C21C5/46
Filed: 1966-05-19
Abstract: 1,082,887. Gas blowing lances. UNION CARBIDE CORPORATION. May 19, 1966 [May 20, 1965], No. 22221/66. Heading F4B. In an oxygen lance including a copper tip 10 having a plurality of oxygen discharge ports 12, cooling water supplied through annular passageway 64 flows through a plurality of passages 40, 44, 34, 36 in the tip and is discharged via passage 46 and tube 52 to an annular passageway 62, the inlets to the passages in the tip being nearer the working face 16 than the outlets; some water also passes from passageway 64 to passageway 62 via hemispherical sockets 30 in the bottom of channel 20. The pipe walls 48, 54, 58 are made of steel and are welded to the tip. There is one cluster of water passages between each pair of oxygen ports.
Patent GB-195006-A (GB)
Title: Improvements in bollards for lifeboat davits and the like
IPC: B63B23/18
Filed: 1922-08-16
Abstract: 195,006. Wilson, H. Aug. 16, 1922. Bollards.-A bollard designed for attachment to a davit post comprises a head 1 with flanged edge 2. A flattened base 3, formed by splitting and spreading the end of the tube from which the bollard is manufactured, partly embraces the davit post 11 and is provided with flanged corrugated edges 6. A back plate 5 takes over the other half of the davit post and is similarly provided with flanged edges 7. Bolts 8 hold together the flanged edges 6, 7. When a pair of bollards are mounted on the davit the back plate. may be common to both bollards to prevent relative slip. In a modification, the back plate is dispensed with, an extension of the bollard being sprung over the davit post and retained by a transverse bolt.
Patent GB-591794-A (GB)
Title: Improvements in optical systems for sighting firearms
IPC: G02B13/00
Filed: 1944-11-13
Abstract: 591,794. Optical systems. OHMAN, K. Y. Nov. 13, 1944, No. 22308. Convention date, Oct. 15, 1943. [Class 97 (i)] A system permitting the simultaneous viewing in different colours of a target and the sight of a firearm comprises at least two adjacent lenses arranged to be non- focal for a certain wavelength in the visible spectrum preferably in the orange and to have a focal length of 80 cms. for a shorter wavelength preferably blue. At least one lens should be positive and of highly dispersive flint glass and at least one a negative crown. A weak colour filter may absorb violet light. The Specification as open to inspection under Sect. 91 describes the lens system shown in Fig. 1 (Cancelled) lens 2 being of flint glass and lens 1, 3 of crown glass the whole being non-focal for orange light and having a focal length of 80 ems. for blue light. Alternatively, a single bi-convex lens of such a thickness that it acts as an astronomical telescope may be used. The foresight may comprise an orange filter having four fine scores or holes and the lens may be of a fluid-like medium or of doubly refractory material. This subject-matter does not appear in the Specification as accepted.
Patent GB-771737-A (GB)
Title: Improvements in and relating to d.c. exciter units for synchronous alternators
IPC: H02K19/38
Filed: 1955-08-03
Abstract: 771,737. Exciting alternators. E.M.B. ELEKTROMOTORENBAU AKT.-GES. Aug. 3, 1955 [Aug. 5, 1954], No. 22308/55. Class 35. The poles of the exciter of an alternator 3 are divided into two parts I, II, carrying separate windings, I being excited between a main brush B and an auxiliary brush A1, and II being excited across both main brushes AB. Voltage control is achieved by a bucking winding 7 on part II fed from a regulator comprising a choke 8 arranged to saturate at or just below the desired output voltage UW, and feeding current to the winding 7 through a rectifier 10, smoothing condenser 11 and optional transformer 12. The sensitivity of the regulation is controlled by resistors 5, 9. Over-voltage at condenser 11 may be prevented by discharge into the exciter armature through rectifier 13.
Patent GB-807971-A (GB)
Title: Improvements in or relating to methods of manufacturing thermionic valves
IPC: H01J19/50
Filed: 1956-07-18
Abstract: 807,971. Thermionic valves. M-O VALVE CO. Ltd., and WIDDOWSON, A. E. July 18, 1957 [July 18, 1956], No. 22310/56. Class 39(1). The glass base 3 of a thermionic valve is sealed to a tubular glass portion of the envelope 2 before the electrode system 7 is mounted in position. The electrode system is then drawn into the tubular portion of the envelope by pulling on the lead-in wires 6 which are attached to the electrode system and pass through narrow metal tubes 4 sealed in the glass base. The wires 6 may be fed into the tubes 4 by using a guide plate which has holes flared in one direction to fit over the tubes and flared in the opposite direction, but to a smaller extent, to receive the ends of the wires. The wires 6 and tubes 4 may be of copper-clad nickel-iron alloy. The electrode system shown is a triode system.
Patent GB-230372-A (GB)
Title: Improvements in resilient tyres for motor vehicle wheels
IPC: B60C7/18
Filed: 1924-09-22
Abstract: 230,372. Burns, J. H. Sept. 22, 1924. Metallic spring bodies and cores. - An outer metal ring 1, semi-circular in cross-section, overlaps a similar ring 2 which is formed with a split 6 and is bolted to a detachable rim by a coupling plate 7a, or to a flanged rim. The ring 1 is built up of sections, tongues 8 and slots 10 on the adjacent sections interfitting, the tongues being formed with ears 9 to prevent them drawing out of the slots. A short cylinder 3, attached at the centre of each section of the ring 1, telescopes a similar cylinder 4 carried on the member 2, a spiral spring 5 being fitted within the cylinders. In a modification, bow springs are attached at their centres to the members 1, 2 and are connected together at their ends by short compression springs.