baber/WOPTO huggingface dataset:
Patent GB-513131-A (GB)
Title: Improvements in or relating to vertical kilns, furnaces, and the like
Filed: 1938-04-01
Abstract: 513,131. Discharge hoppers for vertical kilns &c. PRIEST, C. F. April 1, 1938, No. 10021. [Class 51 (ii)] A discharge hopper for vertical kilns, furnaces and the like comprises conical members a, b, the lower end of the member a being arranged within the upper end of the member b to provide an annular space in which is disposed an annulus e of metal or brickwork having air supply passages h circumferentially spaced. Each of the passages is controlled by a damper k or an annular damper provided with openings corresponding with the passages may control the passages simultaneously.
Patent GB-213441-A (GB)
Title: Improvements in and relating to bibcocks
IPC: F16K43/00
Filed: 1923-04-13
Abstract: 213,441. Merton, H. B. April 13, 1923. Repairs, facilitating; closure members.-A bibcock is provided with a reversible jumper which is removable through the outlet, and with a spring-pressed supplementary valve which closes when the jumper is removed. The jumper D is kept in place by a pin H so that it may be removed through the outlet A when the pin is withdrawn. The valve E is normally kept open by the jumper D, but is pressed upwards to its seat by a spring when the jumper is removed.
Patent GB-604107-A (GB)
Title: Thermionic valve circuits for generating modulated pulse trains
IPC: H03K3/04
Filed: 1941-08-08
Abstract: 604,107. Electro therapeutic apparatus. DANSK INDUSTRI SYNDIKAT, COMPAGNIE MADSEN AKTIESELSKABET. Aug. 8, 1941, No. 10100. Convention date June 21,1940. [Class 81(ii)] [Also in Group XL(c)] Apparatus for the treatment of nerves and muscles by means of electric pulses, especially for the artificial innervation of muscles, comprises means for producing a rhythmically pulsating control current. The frequency of the pulses and their amplitude are variable simultaneously about a datum and in addition the mean frequency and the mean level of the pulses are independently variable. In the Figure the charging and discharging of capacitor 16 controls the current through a valve 1 and the voltage developed across resistors 8, 11 to control the amplitude and frequency of pulses. The potentiometer 30 enables the amplitude to be reduced to zero. The charging and discharging of capacitor 44 produces a sawtooth waveform of frequency determined by potentiometers 41, 46, and varying in amplitude with voltage across potentiometer 11. Sharp pulses are produced from the sawtooth wave by network 50, 68, 69 the spacing being determined by the setting of potentiometer 11 and are amplified by valve 51 the amount of amplification being varied by the potentiometer 8 above a minimum level determined by potentiometers 60, 68. A network may be inserted in the grid circuit of valve 51 to vary the pulse shape.
Patent GB-212768-A (GB)
Title: Improvements in the process and apparatus for the manufacture of sulphuric acid
IPC: C01B17/84
Filed: 1923-04-13
Abstract: In the chamber process for making sulphuric acid, the Glover and Gay-Lussac towers are used without any filling, and the acid is sprayed into the top of them in a fine spray for instance by spraying-nozzles.  The towers consist of a lead casing with stone lining.  Specification 202,629 is referred to.
Patent GB-1420062-A (GB)
Title: Cathode structure
IPC: H01J37/34
Filed: 1972-09-04
Abstract: 1420062 Discharge apparatus TELIC CORP 4 Sept 1972 [7 Sept 1971 18 May 1972] 10140/75 Divided out of 1420061 Heading H1D A cathode structure for use in electrode glow discharge apparatus comprises a cathode assembly 14 including a central elongated portion 40, flange members 14a, 14b at the ends thereof, and means 59 coupling together said central portion and said flange members, said flange members and central portion together providing a cavity therein, and a spool 76 mounted within said cathode assembly, said spool having a central elongated portion 77 mounted within the central portion 40 of said cathode assembly and having wing portions 77a and 77b mounted within the respective flange members 14a and 14b of said cathode assembly. The cathode structure is secured by supporting means 15 to the cover 18 of a sputtering apparatus described in the Parent Specification in association with a hollow water-cooled anode 16. The supporting means 15 include passages for circulating cooling water through the cathode assembly. The latter includes a magnet coil 20, and a further magnet coil (not shown) is mounted around the wall of the apparatus.
Patent GB-272001-A (GB)
Title: Improvements in the control of dynamo electric machines
IPC: H02K17/26
Filed: 1926-04-17
Abstract: 272,001. English Electric Co., Ltd., and Ayres, W. E. M. April 17, 1926. Electric braking.-An alternating current motor 1 which is started as an induction motor with the secondary connected to resistances 10, and run as a synchronous motor with the secondary excited by direct current from a generator 7, is controlled for electric braking by using the disconnected secondary starting resistances as braking resistances connected to the primary terminals 2 after cutting off the main supply. Groups of switches 8, 9, 17, 19 for effecting the changes of connections may be operated by electromagnets in push-button circuits. Time or current-limit controlled means may be used to bring into action successively switches 11 - - 16 for short-circuiting the resistances in sections. Separate direct current exciting mains 22 are used during the braking period. In a modification these mains are arranged also to excite during normal running, the machine 7 being omitted.
Patent GB-368102-A (GB)
Title: Improvements in and relating to frames for wire mattresses or the like
IPC: A47C19/00
Filed: 1931-04-07
Abstract: 368,102. Bedstead joints. KINKEAD, J. and LANGRAN, G., 24, Foley Street, Dublin. April 7, 1931, No. 10199. Convention date, June 19, 1930. [Class 52 (ii).] In a mattress frame of the kind comprising members 1, 2 secured together by a bolt 3 which also secures the lug 7 of a bolt 9 within a slot 6 in the member 1, the slots 6 are open on the inside of the members 1, so that the bolts 9 may be turned inwardly, under the crosspieces 2, for protection during transport, or, if made as shown in Figs. 6 and 7, may be detached from the mattress frame without removal of the bolts 3.
Patent GB-812948-A (GB)
Title: Improvements in or relating to anamorphotic optical systems
IPC: G02B13/08
Filed: 1954-04-07
Abstract: 812,948. Anamorphotic optical systems. COOK, G. H., and TAYLOR, TAYLOR & HOBSON. April 7, 1955 [April 7, 1954], No. 10203/54. Class 97(1) An anamorphatic system giving different magnifications in two mutually perpendicular planes of operation for the same conjugate planes comprises two compound members having cylindrical surfaces with their generators parallel and each including at least one convergent element and at least one divergent element, and a convergent member having spherical surfaces interposed between the two cylindrical members, one of the cylindrical members being convergent with at least one dispersive internal contact and having its outermost surface (remote from the spherical member) convex, whilst the other is divergent with at least one collective internal contact and having its innermost surface (facing the spherical member) concave, the arithmetic mean between the positive values of the equivalent focal lengths of the two cylindrical members bearing a ratio to the equivalent focal length of the spherical member lying between 0.4 and 1.2 times the ratio of the greater of the two magnifications of the complete system in the two operative planes to the difference between such magnifications. Numerical data are given for two examples of the system shown, designed for photographic copying, in which the convergent cylindrical member faces the longer conjugate and for one in which the divergent cylindrical member faces the longer conjugate. Specification 658,349 is referred to.
Patent GB-115737-A (GB)
Title: Trimming Mechanism for Sewing Machines.
Inventor: FAIRWEATHER WALLACE
IPC: D05B37/04
Filed: 1917-07-14
Abstract: 115,737. Fairweather, W., (Singer Manufacturing Co July 14, 1917. Sewing-machines; trimming or cutting.-The movable blade 22 is secured to a carrier 25 substantially parallel with, and in front of, the needle-bar and at its upper end bent at right-angles and pivotally connected to a rock-lever 15 in the rear of the needle-bar. The lever 15 is pivoted in a bracket 17 and is actuated by a link 13 connecting it with the needle-bar and having an arm 14 acting as the take-up in the stitchformation. The carrier is guided vertically by a link 34 pivoted thereto and secured to a rock-shaft 36 slidable endways. The movable blade is kept up to its work by a spring 41 abutting on a collar on the shaft 36 and on one of its bearings. The carrier is stiffened against vertical reaction by a rib on its forward edge. A wear plate 43 is adjustably secured to the presser-foot.
Patent GB-1074899-A (GB)
Title: Improvements in radar camouflage layers
IPC: H01Q17/00
Filed: 1962-03-16
Abstract: 1,074,899. Tuned absorbing means for radio waves. ELTRO G.m.b.H. March 16, 1962 [April 21, 1961], No. 10278/62. Addition to 1,074,897. Heading H4A. The surface of a radar camouflage layer is subdivided into two or more groups of surface regions or zones, each group of regions being effective over a different part of the frequency band to be absorbed and the individual groups of regions being formed by absorbers having different attenuation characteristics. There may be two groups of regions, one of the inter-. ference type giving absorption over a narrow band centred on a wavelength of 3 cm. and the other a wide band absorber centred on 6 cm. Fig. 7 shows a plan and Fig. 8 a section along line VIII-VIII of such a layer; the individual regions I, III are rectangular, the long sides having a length of 15 cm. which is 5 # for regions I and 2À5 # for regions III, where # is the resonant wavelength. The width a of regions I is 1À5 cm. = ¢ # and the width b of regions III is 3 cm. = ¢ #. Between the rows formed by regions I, III a distance d of 1 cm. is provided. The difference in height of the two regions and the gaps between rows is masked by a covering layer 14, e.g. of synthetic resin, concrete, tar or the, like, of low dielectric constant, and the regions are mounted on a strongly reflecting backing layer 13, for example a synthetic resin layer containing aluminium powder. The wide band absorber may be a controlled dispersion absorber or a diffusion absorber. Fig. 3 shows a controlled dispersion absorber comprising balls 2 or truncated spheres of strongly reflecting material incorporated in a weakly attenuating medium 1 of synthetic resin, cement, tar or the like; in a modification, Fig. 5 (not shown), pyramidal or wedge-shaped ribs of material having a predetermined absorption are arranged in a weakly attenuating medium. A diffusion absorber, Fig. 4 (not shown), consists of a medium whose dielectric constant increases from outside towards the inside; alternatively it may comprise a series of stacked plates each of which is provided with a conductive layer.
Patent GB-643155-A (GB)
Title: Television receiver
IPC: H04N5/57
Filed: 1947-04-17
Abstract: 643,155. Television. BENDIX AVIATION CORPORATION. April 17, 1947, No. 10282. Convention, date, May 31, 1946. [Class 40 (iii)] A contrast control and video gain circuit arrangement for television receivers comprises a video amplifier stage provided with an output load impedance, across which the control electrodes of a cathode-ray picture reproducing tube are directly connected, and an input circuit including a variable resistor so connected that variations of the resistance simultaneously vary the amplitude of the video signals and the magnitude of the bias on the control electrodes of the video amplifier stage. In the arrangement shown in Fig. 1, the control electrodes 21, 23 of the cathode-ray tube are directly connected across the load impedance 20 of video amplifier 15, the input circuit of which includes a pre-set resistor 17 which is so adjusted that variation of the video gain control 16 changes both the level of the video signals and the D.C. voltage drop across impedance 20 such that optimum contrast conditions exist for all levels of video signal The Specification as open to inspection under Sect. 91 describes a modification (Fig. 2, Cancelled, not shown) in which the arrangement of Fig. 1 is conductively connected to the second detector of a television receiver in order. to preserve the D.C. component which, in the arrangement of Fig. 1, is lost by passage through the coupling condenser 13. This subject-matter does not appear in the Specification as accepted.
Patent GB-469148-A (GB)
Title: Improvements in concrete pumps
IPC: F04B7/00
Filed: 1936-04-08
Abstract: 469,148. Concrete pumps. CHAIN BELT CO. April 8, 1936, No. 10316. Convention date, Oct. 12, 1935. [Class 102 (i)] [Also in Group XXVI] The inlet valve 23 and outlet valve 33 of a concrete pump are so arranged that the discharged concrete passes through both valves. The valves are of the oscillating type and partially or wholly close their respective pipes. The closing segment 25 of the inlet valve is so formed that it forces concrete into the cylinder during the opening movement. The inlet valve is operated by a connecting rod provided with two springs which are respectively compressed, by excessive resistance encountered by the valve during the opening and closing movements to permit shortening and lengthening respectively of the rod. The pump is mounted on a carriage 5. Specifications 412,282 and 455,093 are referred to.
Patent GB-345112-A (GB)
Title: Improvements in tools for checking and adjusting vehicle shock-absorbers
IPC: B25B27/00
Filed: 1930-04-01
Abstract: 345,112. Wrenches. KEMPF, K. F. W., 49, Oakhurst Avenue, Buffalo, New York, U.S.A. April 1, 1930, No. 10355. [Class 61 (iii).] With the object of adjusting hydraulic or like shock absorbers 11 on motor vehicles a tool resembling a long box spanner is rotatable by hand relatively to a graduated dial 18 which is held against movement when the tool is rotated. The stem 14 of the tool is turned by a handle 26 and the pointer 27, which rotates with the handle, moves over the graduations on the dial 18 which is held against rotation by the handle 19. The stem of the tool may pass between the spokes of a road wheel as shown, or it may be cranked to pass round the outside of a tyre when used in connection with a vehicle having disc wheels. Specification 299,798, [Class 108 (iii), Springs &c.], is referred to.
Patent GB-166355-A (GB)
Title: Improved means for luffing ships' davits
IPC: B63B23/04
Filed: 1920-04-14
Abstract: 166,355. Welin, A. April 14, 1920. Davits. - Actuating means for luffing davits comprises a toothed quadrant H fixed to the deck, a frame E pivoted about the axis of the quadrant and connected by a link L to the davit A, the frame carrying a pinion G gearing with the quadrant and driving- gear for the pinion which may consist of a worm and wormwheel, operated by a handle K. The davit A is of the crescent type and supports the boat C. In a modification, applied to a davit for lowering double-banked boats, the frame and quadrant are pivoted on the same axis as the davit, and instead of fitting a link L, the worm casing I is pivoted to an arm on the davit socket.
Patent GB-937042-A (GB)
Title: Improvements in or relating to label-dispensing machines
IPC: B65C9/18
Filed: 1961-03-22
Abstract: 937,042. Label-dispensing machines. FANFOLD Ltd., and G. R. JOHNSON. March 21, 1962 [March 22, 1961], No. 10461/61. Class 94(1). A machine for partly detaching labels 1 from a web 2 includes a sprocket wheel 8 engaging the web and driven through a predetermined angle each time a switch is operated. The switch is preferably operated by a pedal and controls a rotary solenoid 10 driving the two sprocket wheels 8 of the construction illustrated through gearing 12. A spring brake 15 controls the speed of the sprockets and a pawl and ratchet 13, 14 prevent reverse rotation. The web is guided by spindles 5, 6, 7 so that it turns through a sharp angle on the spindle 6 to detach the leading edge of a label which can then be removed by an operator for attachment to a package resting on a ledge (not shown) below the spindle 6. The web 2 is shown as guided by collars 4.
Patent GB-352399-A (GB)
Title: Improvements in or relating to aerials
IPC: H01Q21/10
Filed: 1930-04-02
Abstract: 352,399. Aerials. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, and ROUND, H. J., Westfield, Muswell Hill, both in London. April 2, 1930, No. 10515. [Class 40 (v).] An aerial for transmitting wavelengths of the order of 200 metres or more is loaded or folded on itself as shown in Figs. 1 to 4, so that it radiates a large proportion of energy in the direction of its length. Electrically it is an even multiple of half wavelengths, though the geometrical length is much less. The form of the standing-wave is shown in dotted lines. When an increased proportion of radiation at right-angles to the length of the aerial is desired, the aerial is made greater or less than an even multiple of half wavelengths. Such aerials may be arranged vertically, say for broadcasting near large towns, or horizontally. Specification 242,342, [Class 40 (v), Wireless signalling &c.], is referred to.
Patent GB-1354001-A (GB)
Title: Devices for separating and collecting specimens of urine
IPC: A61B10/00
Filed: 1971-04-21
Abstract: 1354001 Urine specimen collector UROSCIENCES INC 21 April 1971 [23 April 1970 22 Jan 1971] 10579/71 Heading A5R A device for collecting urine specimens from human females comprises a substantially rigid hollow body 1 having a substantially oval mouth and at least one conduit 5 extending therefrom. The conduit 5 has an opening 5a directed towards the hollow body mouth and spaced from the inner surface of the hollow body. The opening 5a and conduit 5 receive only the midflow stream Y of urine, and the initial and final streams X are received in a second conduit 4. In an alternative embodiment, Figures 5 and 6 not shown), a manually-operable valve (10) is disposed across said conduit opening.
Patent GB-108856-A (GB)
Title: Improvements in or relating to the Manufacture of Alcohol.
Inventor: HENRY DREYFUS
IPC: C07C29/141
Filed: 1917-07-23
Abstract: 108,856. Dreyfus, H. Aug. 12, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Ethyl alcohol is obtained by the reaction of hydrogen on acetaldehyde in the presence or absence of catalysts. Suitable catalysts are platinum, platinized asbestos, copper, iron, chromium, nickel, cerium, uranium, vanadium, or their oxides &c. The reaction is carried out by passing the mixture of hydrogen and aldehyde vapour through reaction vessels or tubes at temperatures ranging from the boiling-point of aldehyde to 400‹ C., and condensing the product. The mixture of hydrogen and aldehyde vapour may be formed by passing a current of hydrogen through aldehyde, and may be preheated. The process may be carried out in contact vessels or tubes similar to those used in the manufacture of sulphur trioxide, or, when catalysts are not used, in metal or other vessels or tubes containing glass wool, glass scrap, &c. to provide an extensive surface.
Patent GB-1033384-A (GB)
Title: New tetrahydro-pyrido [4,3-d] pyrimidines
IPC: C07D471/04
Filed: 1963-03-18
Abstract: The invention comprises:  (1) 5,6,7,8-tetrahydropyrido - [4,3 - d] - pyrimidines of the general formula <FORM:1033384/C2/1> (wherein R represents a hydrogen atom or an alkyl group, R1 represents a hydrogen atom, a saturated or unsaturated aliphatic hydrocarbon group which may be substituted by an amino (including mono- or di - substituted amino) group, or an aryl or aralkyl group, R2 represents a hydrogen atom, an alkyl, aryl or aralkyl group, a free or mono- or di-substituted amino group, or a nitrogen-containing saturated heterocyclic ring attached through the nitrogen atom and optionally containing a further hetero atom and/or being alkyl-substituted, and Am represents a free or mono- or di-substituted amino group (including hydrazino), or a nitrogen-containing saturated heterocyclic ring optionally containing a further hetero atom and/or being alkyl-substituted) and their non-toxic acid addition salts, and pharmaceutical compositions containing these compounds in association with a carrier or excipient; (2) the preparation of the compounds of (1) by (a) reacting a compound of the general formula <FORM:1033384/C2/2> (wherein Z represents a halogen atom) with a compound AmH, or (b) (when Am=NH2) reacting a piperidonecarboxylic acid nitrile of the general formula <FORM:1033384/C2/3> (wherein X represents an imino group) with an amidine R2C(:NH)NH2, and in either case, if desired, converting the product into a nontoxic acid addition salt; (3) the combination of process (a) with the preparation of the starting material by halogenation of a compound of the general formula <FORM:1033384/C2/4> (4) the combination of process (b) with the preparation of the starting material by condensing a bis-(b -cyanoethyl)amine of the general formula <FORM:1033384/C2/5> with a basic condensing agent.  The compounds of (1) can also be made by the following additional processes:  (c) conversion of the NH2 group in the product of (b) into another Am group, e.g. by alkylation or by reaction with a dihalo-aliphatic compound to form a heterocyclic ring; (d) (when R2 represents a free or mono- or di-substituted amino group or a heterocyclic ring) reaction of a corresponding compound, containing a mercapto, alkylthio or aralkylthio group in place of R2, with ammonia or an appropriate primary or secondary amine;  (e) (when R2 is identical with Am) replacement of the starting material of (a) by a corresponding compound containing, in place of R2, a substituent (e.g. a halogen atom) replaceable by an amino group.  The pharmaceutical compositions, which have antipyretic, antiphlogistic, diuretic, bacteriostatic, sedative or coronary-dilatatory action, may be in forms suitable for oral, rectal or parenteral administration, e.g. capsules, tablets, coated tablets, suspensions or suppositories.
Patent GB-251628-A (GB)
Title: Improvements in tobacco pipes
IPC: A24F1/22
Filed: 1926-04-27
Abstract: 251,628. Butler, R. April 28, 1925, [Convention date]. Tobacco pipes.-The mouthpiece 3 is connected to the stem 2 of the bowl by a band or sleeve 4 of thin metal or other material so as to form a cooling-chamber 5. A tube 8 passed through bores in the mouthpiece and stem is open at 13 to the atmosphere, at 10 to the bowl, and at 11 to the chamber 5, so that smoke from the bowl' entering the tube at 10 passes to the chamber 5 and mixes with air entering the tube at 13.
Patent GB-746838-A (GB)
Title: Improvements in or relating to nesting tables or desks
Inventor: MAY WILLIAM ELTON
IPC: A47B7/02
Filed: 1953-04-23
Abstract: 746,838. Nesting tables. TALBOYS MANUFACTURING CO., Ltd. April 23, 1954 [April 23, 1953], No. 11176/53. Class 52(2). A table constructed to facilitate nesting has a laminated wood top 5 and X-form legs, the outer legs 6 of each pair being formed of one tube 7 of inverted U-shape and the inner legs 8 from another tube and rubber feet 12 being provided. The legs 6 are spaced slightly more than the length of top 5.