baber/WOPTO huggingface dataset:
Patent GB-766910-A (GB)
Title: Improvements in or relating to mass spectrometer
IPC: H01J49/00
Filed: 1954-07-06
Abstract: 766,910. Mass spectrometers. BECKMAN INSTRUMENTS, Inc. July 6, 1954 [July 27, 1953], No. 19740/54. Class 39(1). A mass spectrometer comprises an ionizing section 11, a D.C. accelerating section 13, an A.C. (radio frequency) analysing section 14 and a collector arrangement 15 which operates an indicator device or controls apparatus. The gas mixture to be analysed is admitted into the evacuated envelope through a gas leak 25, and ions are produced by the impact of electrons formed by cathode 21 and collector 24 and drawn out and focussed by D.C. electrodes 30. The A.C. section 14 comprises axially-aligned tubular electrodes 31, alternate ones being interconnected and the two groups connected to opposite terminals of an oscillator 33. The lengths and diameters of the electrodes 31 the amplitude and frequency of the A.C. potential and the D.C. acceleration potential determine on transit time considerations that ions of a particular mass shall pass through at maximum energy level. The A.C. wave shape may be sine-curve, square or pulsed, the resolution of the instrument depending thereon, the square wave being preferred. The A.C. wave may be frequency modulated by a smooth waveform from a modulator 34, in order to smooth the recording peaks. The collimated ion beam from the A.C. section 14 passes through a slit 49 and a screen 50 and between charged plates 51, 52 to direct the ions of selected mass to the edge of a collector plate 55 connected to the indicator or functional control member 32. Secondary electrons generated on the collector 55 pass to a plate 63 integral therewith and secondaries generated elsewhere which would otherwise reach plate 55 are diverted by cutting a hole 64 in plate 51 and providing a plate 65 under it at the required potential to attract them. In applying appropriate potentials to the tube either one group of A.C. electrodes or the collector plate is earthed. In a modification Fig. 6 (not shown), apertured discs increasingly spaced replace the tubular electrodes. The theory of operation of the device is discussed in the Specification.
Patent GB-584405-A (GB)
Title: Improvements in or relating to workholders for small articles
IPC: B25B9/02
Filed: 1944-10-13
Abstract: 584,405. Work-holders. WHATMOUGH, A. C. Oct. 13, 1944, No. 19757. [Class 83 (iii)] transferring blanks.-A workholder for small flanged or headed or externally-tapered articles such as rivets, collets, eyelets, screw and the like comprises a set of normally open spring fingers adapted to have the article inserted between them from above and an apertured plate which carries the article and acts on the spring fingers to move them into a closed position where they grip the work. A lower base plate 1 is apertured to receive a number of tubular work-holding members each comprising a cylindrical lower portion 3 with an enlargement 4, a middle tapered portion 5 and an upper small cylindrical portion 6. Portions 5 and 6 and the upper part of portion 3 are divided into five fingers by axial V-slots 7. The fingers are adapted to be closed on to the work by means of an apertured plate 9, the lower rims of the apertures bearing against and compressing the fingers as the plate 9 is moved towards the base plate 1. In operation, the workpieces, such as eyelets 12 may be arranged on the plate 9 which is then moved downwardly so that the eyelets enter the workholding fingers and then the fingers are operated to grip the work, during which latter operation. the plate 9 moves downwardly away from the work as shown in Fig. 3.
Patent GB-296865-A (GB)
Title: Improvements in or connected with tip-up seats for places of entertainment or the like
IPC: A47C7/56
Filed: 1927-07-26
Abstract: 296,865. Thursting, F. E. July 26, 1927. Folding seats.-A tip-up seat is pivoted at a point c, well above the base of the seat proper, and carries lugs d<2> which engage cam slots a<5> when the seat is lowered, thus relieving the pivot c of all strain when the seat is occupied. The arms d are provided with elongated slots d<3>, and the forward portion of the seat, when in use, rests upon bearers a<1>.
Patent GB-256967-A (GB)
Title: Improvements in or relating to thermionic and like amplifiers
IPC: H03J3/06
Filed: 1926-08-11
Abstract: 256,967. White, S. Y. Aug. 11, 1925, [Convention date]. Thermionic amplifiers.-The coupling between valves VT1, VT2, comprises an output circuit and a tunable circuit having independent electromagnetic and electrostatic couplings, preferably so arranged that a constant co-efficient of coupling exists throughout the tuning range. The Figure shows a condenser C'3 common to the input and output circuits and coupling coils L<1>1, L<1>2. The input circuit of the valve VT2 is tuned by a condenser C'2 and a high-frequency choke L3 is included in the high-tension supply. The inductance L<1>1 and the condenser C<1>3 are so proportioned that the capacitive reactance of the plate circuit predominates, thus preventing self-oscillation due to inherent feed-back due to the capacity between the valve elements.
Patent GB-497318-A (GB)
Title: Improvements in processes of and machines for expanding tubes
IPC: B21D41/02
Filed: 1938-07-05
Abstract: 497,318. Tube expanders. SOC. ANON. LOUVROIL . MONTBARD - AULNOYE. July 5, 1938, No. 19891. Convention date, June 11. [Class 83 (iv)] In a tube expanding machine plugs 3, 4, 5, 6, 7, are successively secured to a rod 2 by a key 9 and drawn through a tube 8 secured to a base 1. Each plug is stripped from the rod 2 by a fork 12, and is retained in the position 3a, 4a, 5a, 6a, 7a until the end of the expanding operation. A jack 16 then raises the free end of the rod 2 which is gripped by fingers 18 on a carriage 19. On the return of the carriage the plugs are positioned over a table 13 which is raised to receive them and to allow of the removal of the fingers 18.
Patent GB-669387-A (GB)
Title: Improvements in and relating to soot blowers
IPC: F28G15/04
Filed: 1947-07-24
Abstract: 669,387. Sootblowers. BRITISH THOMSONHOUSTON CO., Ltd., and JEFFERSON, H. F. Aug. 27, 1948 [July 24, 1947], No. 19915/47. Class 99 (ii) In a sootblower of the retractable type the blower tube B is continuously rotated by an electric motor N and intermittently reciprocated to and from the operative position by a cam U driven by the motor through a clutch b, Fig. 2. The cam U is of cylindrical form freely mounted by a web U1 on a countershaft z driven by a gearwheel K by which the blower tube is rotated. The cam track U comprises a groove formed of half a right-hand helix continuous with half a left-hand helix. The groove is engaged by a roller V carried by a forked lever W which is pivoted on a support Y and engages a collar H on the blower tube. A long key J permits reciprocation of the blower tube through the fixed bearing of the gearwheel K. In the blowing position a cam D engages a tappet E to actuate a pilot valve of the valve (not shown) supplying steam to the nozzle A. The clutch comprises a flanged sleeve a which is fixed on the countershaft z and a spring-loaded slidable sleeve b having lugs c engaging slots in the cam U and a rod k slidable through the web U1. The rod k is connected by a link h to a pivoted lever e carrying a roller f which is actuated by a cam Z to declutch the cam U, the cam Z being controlled by pawl-and-ratchet mechanism from the gearwheel K. A pin l on the gearwheel actuates a lever m, linkage q<SP>1</SP>, and a pawl r engaging a ratchet-wheel Q free on the countershaft. A holding pawl (not shown) is provided. A lug R, on the ratchet engages a lug T on disc S which carries the cam Z and is also free on the countershaft. The lever m, pawl r, ratchet-wheel Q, and disc S are all loaded by springs (not shown), the disc being biased agaist a stop 52, Fig. 2. At the beginning of an operation the cam U is clutched as shown in Fig. 2 and makes a half revolution moving the blower tube to the blowing position. The roller f and cam Z then engage to declutch the cam U, and the blower tube rotates in the blowing position until continued actuation of the ratchet causes the roller f and cam Z to disengage. The blower tube is then withdrawn, and a rocking lever (not shown) actuated by a cam aa, Fig. 1, disengages the pawls, the disc S and ratchet returning to their initial positions.
Patent GB-666663-A (GB)
Title: Pneumatic drive for the acceleration of masses
IPC: F15B15/22
Filed: 1949-07-29
Abstract: 666,663. Pneumatic actuation of switches. AKT.-GES. BROWN, BOVERI, & CIE. July 29, 1949. [July 31, 1948]. No. 20005/49. Class 38 (v). [Also in Group XXVIII] A pneumatic drive mechanism primarily for the actuation of electric switches is provided with an operating or power piston d, Fig. 1, and a buffer piston f in separate cylinders e, g supplied with compressed air from a common source. On the application of pressure air, the power piston d makes an upward undamped movement until it engages the buffer piston f. A further damped movement of the pistons occurs against the pressure applied to the piston f, which is provided with an aperture h which allows the pressure on both sides of the piston f to be gradually equalised to prevent rebound. In a modification, Fig. 4, a further piston k is provided to check the movement of the pistons d, f, the space n beneath the piston k being slowly filled with pressure air through a throttle valve o to enable a short movement to occur to enable the apparatus to reach its final or end position.
Patent GB-924916-A (GB)
Title: Improvements in or relating to metal-to-metal seals
IPC: F16L15/04
Filed: 1961-06-02
Abstract: 924,916. Stuffing-box packing. PARKERHANNIFIN CORPORATION. June 2, 1961 [June 8, 1960], No. 20048/61. Class 122 (5). [Also in Group XXVIII] A metallic sealing ring, e.g. of stainless steel, adapted to co-operate with a fitting of substantially circular cross-section having two screwthreaded portions 4a, 4b spaced apart by a smooth groove 7, has when undistorted, a right cylindrical passage 22 of which one end is contiguous with an outwardly-tapering, frustoconical, inner surface 15 of a body portion 10 connected by means of a narrow neck portion with a head portion 16 at the other end of the passage. As shown, the fitting, of elbow or T form, is screwed into a boss 1 provided with a flared mouth 3, and a nut 8 turned relative to the fitting presses the sealing ring 9 axially inward so that the body 10 of the ring is wedged between the mouth 3 and the groove 7. The ring 9 is initially of the form shown in Fig. 3, and, prior to use, is contracted by dies 25, 26 into the groove 7 to the preset form shown in dotted line in Fig. 2.
Patent GB-358048-A (GB)
Title: Improvements in and relating to textile printing
IPC: B41F15/08
Filed: 1930-07-02
Abstract: 358,048. Stencils and stencilling. WALKER, D., 73, Windmill Road, Hampton Hill, Middlesex. July 2, 1930, No. 20056. [Class 100 (ii).] In stencils adapted for printing on textile fabrics, leather, and like materials and consisting of an open-mesh fabric, such as bolting cloth or wire gauze, which is coated with a light-sensitive layer parts of which are rendered insoluble by exposure to light through a translucent sheet or layer bearing the whole or part of the design, the insoluble parts of the layer remaining on the fabric and the exposed threads of the fabric are protected on both sides by a coating, consisting, for instance, of celluloe, varnish including a plasticizer, such as castor oils or of a varnish known as " Bakelite Varnish," capable of resisting the action of the chemical discharges or colouring materials employed. In the process described, the stencil is stretched over a frame, a bichromated gelatine coating is applied, and the frame is clamped in a photographic printing- frame together with either a glass or celluloid sheet on which the design has been drawn by hand or a half-tone negative or positive. The line along which the stencil fabric joins its frame is covered by means of a strip of material, such as varnished silk, adapted to prevent leakage of colour along the edges of the stencil. Two or more stencils each bearing a part of the design may be employed simultaneously, or the stencils may be positioned over different sections of the fabric in turn. Stencilling apparatus is described comprising, in one form, a work-table 1, Fig. 1, provided at each side with brackets 3 supporting a rod 2 at a number of points, and on each section of the rod there are slides 4 having lugs provided with holes 5 to receive pins 6 on a stencil frame 7 : the slides 4 may have slots 9 to allow them to move past the brackets 3 into the next section. In an alternative form, the stencil frame is secured to a carrier slidably mounted on a gnide-rod provided at one side of the table, the carrier having holes engaging pins on adjustable stops slidably mounted on a bar arranged at one side of the table. In a third form, the stencil frame 7 has pins 23, Fig. 4, engaging holes in brackets 19 slidably mounted by means of rollers 20 on a bar 16 provided at one side of the table: the pins 23 may be adjustably mounted in slots in the stencil frame.
Patent GB-320136-A (GB)
Title: Improvements in or relating to quantitative spectroscopic and spectrographic analysis and apparatus therefor
IPC: G01J3/28
Filed: 1928-07-10
Abstract: 320,136. Barratt, S. July 10, 1928. Spectroscopes.-Apparatus is provided for effecting spectroscopic or spectrographic analysis on the principle of comparing intensities of the spectrum lines of an element emitted from two separate equal sparks derived simultaneously from the same electrical source. One of the sparks is obtained between poles of the material under examination and the other between poles of a standard preparation of the material. The sparks are of equal length and may be examined by photometric means in which optical arrangements B are provided to bring the spectrum lines into juxtaposition. Alternatively photographic means may be employed.
Patent GB-972590-A (GB)
Title: Improved key-operated lock
IPC: E05B29/04
Filed: 1963-05-21
Abstract: 972,590. Revolving barrel locks; keys. R. PARLIER. May 21, 1963 [May 24, 1962], No. 20112/63. Heading E2A. A revolving barrel lock has a series of plate tumblers 19 sliding in slots 15 and biased by springs 25 into a locking position and is characterized in that the tumblers may be inserted into the slots either end first to cooperate with either of the edges E or F of a key whereby the number of combinations provided by a given number of plates having a given set of heights is increased. The lock has two identical barrels one each side of the housing 1 and each barrel has a spring-biased U-shaped member engageable by the key to operate a follower 4. The barrel comprises two sections 5, 6 joined by a screw 7, the section 6 carrying the tumblers. A bearing plate 26 inserted in a slot in the part 6 supports the tumbler spring 25 and a further slot is provided to receive the bearing plate when the plate tumbler is turned round.
Patent GB-148303-A (GB)
Title: Improvements in horseshoe
IPC: A01L7/00
Filed: 1920-07-09
Abstract: 148,303. Removable Overshoe Co., (Assignees of Hazen, E. H., and Levi, S. L.). Nov. 12, 1913, [Convention date]. Renewable calks &c.-Detachable sections 7 each carrying calks 14 are provided. Each section is formed with an offset portion 9, Fig. 1, having ears 10 co-operating with a right and lefthanded screw 11 to fix the two sections in position on the shoe 6. Lugs 8 are provided which are bent over at the top to fit the upper surface of the shoe. The shank of the calk is inclined as shown in Fig. 4 and is held in position in its co-operating slot by a wedge 19. Ears at 26 limit the lower position of the wedge in the slot. To remove the wedge, a drift is inserted in a cut-away part 27 of the calk. A continuous bend 29 on the undersurface of the section 7 may fit into a corresponding groove in the shoulder of the calk to reduce torsional stress in the shank. In a modification shown in Fig. 5, the lug with bent-over part 8 is formed integrally with the shank of the calk.
Patent GB-1410884-A (GB)
Title: Waste flue gas desulphurizing method
IPC: C01F11/46
Filed: 1973-04-27
Abstract: 1410884 Removal of sulphur dioxide from waste gases HITACHI Ltd 27 April 1973 [8 May 1972] 20235/73 Heading C1A SO 2  is removed from waste flue gases by contacting the gases with sea-water and then contacting the SO 2 -containing sea water with O 2 , e.g. air, to convert the sulphites formed into sulphates, the sulphites being formed from Ca and Mg bicarbonates present in the sea water. A wet flue gas containing 10-15% CO 2 , 0À1- 3% S02 and 5% by vol. O 2  at 130 C. after passage through a dust remover may be passed via line 10 into the gas scrubbers shown in Figs. 2 or 7. The sea-water is introduced via 13 and the sulphite-containing sea-water discharged via 14 and the cleaned gas via 11. In Fig. 2 the scrubbing is enhanced by several vertical wooden plates 21. In Fig. 7 the waste gas is introduced beneath a rotating cone 22. The sea-water containing 1À1 mmol./l. SO 2  is then contacted with an air stream to effect the oxidation and raise the pH. The oxidation may be carried out in either of the scrubbers shown.
Patent GB-228582-A (GB)
Title: Process for the production of active carbons
IPC: C01B32/336
Filed: 1923-08-09
Abstract: 228,582. Potts, H. E., (Algemeene Norit Maatschappij). Aug. 9, 1923. Carbon.-Active carbon is prepared by introducing finely divided carbonaceous material into a hot chamber where it is maintained in suspension by gas and is activated by gas and finally drawing off the activated portion by virtue of its lower apparent specific gravity. The raw or predistilled material, such as fruit pips, wood, peat, lignite or other materials of vegetable, animal or mineral origin, may be fed to a container 1 leading to a down passage 2 provided with an injector 3, and upon entering the activation chamber 4 it encounters a number of jets of gas of which 6, 6<1> may supply combustible gas mixture or fluid fuel and steam. The blast of steam is so regulated as to keep the material in suspension for a sufficient time for it to become activated, and finally the gases and activated carbon are drawn off by means of an exhauster 12 through a. conduit 7, settling chambers 8, 9 and dust collector 13, while the unactivated material remains behind. The activated material deposits in the chambers 8, 9 and is drawn off into containers 10, 11. To obtain better heat conduction within the activating chamber, the latter may be provided with heat radiating surfaces, such as transversely disposed and staggered baffle rods 14 of heat refractory material, such as silica, fireclay, or magnesia. Instead of or in addition to internal heating, burning gases, benzene, crude oil, petroleum &c. or other form of internal or external heating may be employed, such as by the provision of electrically heated rods or internally heated pipes. The nature of the raw material, and the temperature, quantity, quality, and velocity of the gases may be adjusted so as to obtain products of known activity or novel products of enhanced activity, and the Specification sets out a, number of the properties of these novel products. An example shows the production of a novel carbon bv treating finely divided pine-wood charcoal in a retort to which crude oil, air and steam are fed, while another example shows the production of a known carbon by varying the temperature and size and rate of charging of the charcoal. The new products are especially useful for gas absorption, as catalysts and for the purification and sterilization of sugar juices, water, oils, such as linseed and soya bean oils, fats and other liquids. Specifications 198,328 and 206,862 are referred to. The Provisional Specifications state in addition that suitable activating gases are carbon dioxide, producer gas, water gas, Mond gas, air, chlorine, sulphur dioxide, volatile chlorides, ammonia &c., and that irregular lumps of quartz or the like may be placed in the activating chamber.
Patent GB-1503530-A (GB)
Title: Coders and decoders particularly for tdm telephone system
IPC: H03M1/00
Filed: 1975-05-14
Abstract: 1503530 Analogue-to-digital and digital-to-analogue conversion SOC ITALIANA TELECOMUNICAZIONI SIEMENS SpA 14 May 1975 [15 May 1974] 20300/75 Heading H3H In a P.C.M. encoder, Fig. 2, a P.A.M. sample is stored on a capacitor C, ramped down by a first current generator g, until it crosses a reference voltage V r , clock pulses being counted in a first, coarse, counter CN 1 , and then ramped up by a second, smaller, current generator g 2  until V, is reached, clock pulses being counted in a second, fine, counter CN 2 . If the count in CN 2  exceeds a given value the count in CN 1  is decremented by one, Fig. 5 (not shown). A feedback circuit may be included, Fig. 6 (not shown), for maintaining zero level calibration, an integrator (IN) responding to the mark/space ratio of the most significant (i.e. sign) bit of the P.C.M. output. In a corresponding P.C.M. decoder, Fig. 4, coarse and fine counters CN 3 , CN 4  receive the more and less significant bits of the incoming P.C.M. signal respectively and control the times for which coarse and fine current generators g 3 , g 4  charge and discharge a capacitor C,.
Patent GB-1273679-A (GB)
Title: Synchronous motor
Inventor: SUZUKI YASUO
IPC: H02K21/24
Filed: 1970-04-28
Abstract: 1,273,679. Electric motors. MATSUSHITA ELECTRIC WORKS Ltd. 28 April, 1970, No. 20357/70. Heading H2A. A self-starting synchronous motor comprises a stator and a rotor having an equal number of poles, either the stator or rotor poles being divided into two equal groups with the poles of one group of smaller width than those of the other group and offset from the position they would have adopted had the centre lines of all the stator poles been evenly spaced. The permanent magnet rotor, planar air gap motor disclosed has 32 rotor and stator poles, the latter being formed on a disc 6 of magnetic material. The disc 6 comprises inner and outer continuous rings 15, 16 joined by a first group of poles 17-32, Fig. 2, twice the width of a second group of poles 33-48. The broad and narrow poles are respectively joined to the outer and inner rings through narrow bridging pieces 17<SP>1</SP>-32<SP>1</SP> and 33<SP>1</SP>-48<SP>1</SP>. The narrow poles 33-48 are offset in the desired direction of rotor rotation by between one and three degrees. The broad and narrow poles assume opposite polarities when the coil 5 is energized. In a modification the magnet may be on the stator and the disc 6 on the rotor.