baber/WOPTO huggingface dataset:
Patent GB-395870-A (GB)
Title: Tool retainers for power hammers, hammer drills or like tools
IPC: B62D43/00
Filed: 1932-07-07
Abstract: 395,870. Percussive tools. CHICAGO PNEUMATIC TOOL CO., 6, East 44th Street, New York, U.S.A.-(Assignees of Nell, G. M. ; 6201, 2nd Boulevard, Detroit, Michigan, U.S.A.) July 7, 1932, No. 19239. Convention date, July 16, 1931. [Class 124.] Tool retainers for pneumatic rock-drills or like tools are mounted on the forward end of the casing, and comprise a retainer member 5, one end of which projects in its operative position into the path of a collar d on the tool D, Fig. 1. A yoke 6 is slidably mounted in lugs b on the casing, being rearwardly pressed by springs 10 positioned between the lugs and a plate 8 carried by the rear end of the yoke 6. A supporting member 7 slidably mounted on the yoke 6 at 7a, 8a, Fig. 3, is forwardly pressed by springs 9 interposed between the lugs b and the member 7. The retainer member 5 is provided with a cylindrical enlargement 5a which forms a pivot position and is received in recesses 6b, 7d in the members 6, 7 respectively, the recess 6b having walls engaging the flat sides of the pivot portion 5a and part of its curved surface. The retainer can thus be pivoted into its inoperative position. When in its operative position a handle portion 5c of the retainer seats on the supporting member at 7e to prevent rotation of the member 5. The yoke plate 8 seats on the barrel at b<1> to prevent rotation of the plate. A projection 5b on the portion 5a engages notches in the recess 7d to lock the retainer in its two positions.
Patent GB-530747-A (GB)
Title: A closure device for facilitating the dissolving or wetting of powders, mixing of substances and like operations in tumblers or similar open vessels
IPC: A47J43/27
Filed: 1939-07-01
Abstract: 530,747. Closures for containers. JAQUES, J. July 1, 1939, No. 19239. [Class 125 (iii)] A closure device for tumblers and like vessels to facilitate mixing, dissolving or wetting of . powders, is made of impervious flexible material such as rubber. The closure has a flat annular marginal part 11 which merges into a domed portion 12 with a central rounded stem 14. An air vent 15 extends through this central stem and may be closed by a finger after the closure has been inserted into the tumbler previous to the shaking. The marginal part 11 is turned out to make a good seal with the tumbler wall; the margin may have a small angular rib 16 extending round its outer edge.
Patent GB-788308-A (GB)
Title: Improvements in or relating to the manufacture of titanium
Inventor: QUIN JAMES PATERSON
IPC: C22B34/12
Filed: 1955-07-04
Abstract: Titanium tetrachloride is reduced with sodium in an inert atmosphere (argon) at 850 DEG C. and in the presence of lower chlorides of titanium, the product being leached in aqueous mineral acid solution containing a soluble formate or oxalate or mixture thereof.  To ensure the presence of the lower chlorides an excess of the tetrachloride, more than 0.25 per cent and preferably between 0.5 and 3 per cent over the stoichiometric, is used.  The leaching solution may be a 2 per cent HCl solution having between 0.5 and 2 per cent by weight of an alkali e.g. sodium formate or oxalate.  A second leach with 2 per cent HCl alone may be given, other Ti be washed and dried. The hydrogen content of the product may be only 0.02 per cent.
Patent GB-761287-A (GB)
Title: Sulphur dyestuffs of the phthalocyanine series
IPC: C09B49/12
Filed: 1954-07-01
Abstract: Sulphur dyestuffs of the phthalocyanine series are made by reacting phthalocyanine or a metal complex thereof with hydroxylamine and chlorsulphonic acid at 100-150 DEG C. in the presence of a compound of an element of Group V(a) or VI(a) (e.g. ammonium molybdate or vanadium pentoxide), and reducing the product obtained, e.g. with iron, zinc dust, or stannous chloride. Hydroxylamine sulphate or chloride or the hydroxylamine sulphonic acids may be used.  Examples describe the reaction of copper, cobalt, and nickel phthalocyanines as above to give products which dye cotton bluish-grey or greenishgrey shades.
Patent GB-1391168-A (GB)
Title: Electrochemical analyser
IPC: G01N27/404
Filed: 1973-04-21
Abstract: 1391168 Electro-chemical analysis INSTRUMENTATION LABORATORY Inc 24 April 1973 [8 May 1972] 19374/73 Heading GIN An electro-chemical analysis cell is provided with a selectively permeable membrane layer 28 and a layer 34 of hydrophobic material in overlying engagement with membrane 28, the layer 34 having a porosity which allows unimpeded gaseous flow in all directions. The membranes 28, 34 close an electrolyte chamber 16 in which is disposed a tubular tin anode 18 and silver cathode 22.  Membrane 28 of P.T.F.E. is only permeable to oxygen whereas membrane 34 is in the form of a porous matrix of fluorocarbon polymer fibres and has an effective area twenty five times greater than the tip of the cathode. The fibres of membrane 34 define a great number of channels extending in all directions, Fig.2 (not shown) so that when, in use, the electrode is disposed in the test medium water particles do not penetrate the hydrophobic membrane 34. Contaminant gases and ions flow freely into, within and out of the porous membrane. If a water particle comes to rest or is formed by condensation directly opposite the tip 24 of cathode 22 oxygen molecules can still enter membrane 34 at non covered points and travel freely in the membrane 34 before diffusing through membrane 28 over tip 24.
Patent GB-932123-A (GB)
Title: Improvements relating to furniture
Inventor: ZOUCH ALFRED GOODWIN
IPC: F16B12/52
Filed: 1962-05-19
Abstract: 932,123. Furniture joints. A. BERCK Ltd. May 19, 1962, No. 19379/62. Class 52 (2). A leg 16 is separably secured to an article of furniture by means comprising a plate 10 adapted to be fastened to the furniture and carrying a nut which has a head 14 which abuts against the plate 10 and a spigot 15 which is of smaller diameter than the head and which extends through the plate and is peened over to hold the nut and plate together. The nut may extend through either a circular or non- circular hole in the plate 10.
Patent GB-617332-A (GB)
Title: Electron discharge devices and associated resonator circuits for use at high-frequencies
IPC: H03F3/54
Filed: 1945-07-30
Abstract: 617,332. Electric resonators. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. July 30, 1945, No. 19394. Convention date, Dec. 31, 1943. [Class 40 (viii)] [Also in Group XL (a)] An electron discharge device has an anode 13, Fig. 1, grid 12 and cathode 10, all in the form of inverted cylindrical cups, the anode 13 forms part of the envelope, the grid 12 is connected to a flange 25 sealed through an insulating part of the envelope and is attached to an apertured disc 43, and grid-cathode and grid-anode resonators are arranged on either side of the disc 43, at least the grid-cathode resonator being a coaxial line resonator. - The grid - anode resonator may be an open-ended half-wave coaxial line, as shown; the open end may be closed provided the outer conductor extends beyond the end of the inner conductor. The grid-cathode resonator is tuned by a variable condenser 51, 62, the member 62 being movable by suitable worm gearing. The inner conductor of the grid-cathode resonator contacts an extension 31 of a cathode supporting tube 19 through spring fingers 52. Members 56, 31, 19 form one cathode lead, and member 22, pin 34 and socket 53, and member 55 form the other cathode lead. The indirectly heated cathode is supported on the tube 19 by fingers 20 which reduce heat flow. The grid is supported on conical member 15 and a rod 11<1> with a cap 29 renders the cathode-grid structure rigid. The anode has cooling fins 14, and a slot 59<1> in member 59 provides an inlet for cooling fluid. Anode potential is supplied by a conductor 82 extending along a radio-frequency nodal line, the point 48 of which is spring-biassed into contact with the anode. Sliding clamps 45 are used to secure the grid flange 25 to the disc 43. The device acts as an oscillator, the two resonators being coupled by loops 72, 73, the loop 72 being telescopically adjustable and the reactance of the coupling loops being variable by a stub 74, 75 with movable tuning piston 76. Output is taken off at 57, 58. 26 is a getter. Anode potential may be direct or in the form of pulses. In a modified arrangement, Fig. 7, the valve construction is the same as in Fig. 1. The grid-anode resonator is, however, in the form of a hollow drum 92 and incorporates a condenser 93, 94 with dielectric 91, which may be mica discs having graded annular rings of silver and coated with titanium oxide salve; fillets of this salve are also placed around the edges of the electrodes 93, 94. The grid-cathode resonator is tuned by piston 621. A feedback line 97 screened by member 99 is connected to the conductor 41<1> by movable member 98. The anode is cooled by air directed on to fins 14, the glass ring 18 and metal to glass seals by four jets of air introduced at 100, and the cathode to grid glasswork by an air jet inside the cover 99.
Patent GB-331092-A (GB)
Title: Improvements in rear-vision mirrors for use on vehicles or aircraft
IPC: B60R1/08
Filed: 1929-06-24
Abstract: 331,092. Simplex Piston Ring Co. of America, Inc. Jan. 4, 1929, [Convention date]. Look-out reflectors.-A rear-vision mirror for use on motor and like vehicles and aircraft having enclosed bodies comprises an oblong panel A o: greater width than height mounted within the car forward of the driver, the mirror being either a. convex spherical one or having a certain curva ture in a horizontal plane and a different curva ture in an intersecting plane, e.g. a vertical plane. The radii of curvature are chosen between the limits of 20 and 50 inches so that the driver from his position D includes within his field of vision at least the back and a portion of his own side of the car, but preferably the field of vision as shown includes the whole of both sides of the car to the rear of the driver.
Patent GB-123720-A (GB)
Title: Improvements in or relating to the Removal of Iron from Solutions Containing Aluminium.
IPC: C01F7/66
Filed: 1918-11-26
Abstract: 123,720. Norske Aktieselskab for Elektrokemisk Industri Norsk Industri-Hypotekbank. Feb. 23, 1918, [Convention date]. Void [Published under Sect 91 of the Act]. Aluminium chloride, nitrate, sulphate, and other salts.-Aluminium salt solutions, particularly the nitrate, are purified from iron by treatment with excess of amorphous or precipitated alumina which may be prepared in situ by adding a soluble base to the solution, or an aluminium compound such as calcined kaolin, clay, law or calcined bauxite, laterite, labradorite, or anorthite. The treatment is preferably effected with heat and may be under pressure or otherwise. The solution may be stirred, or air may be blown through. Part of the iron may be precipitated by treatment with one of the minerals mentioned and the rest by precipitated alumina. The last traces of iron may be removed by ferrocyanide, the blue precipitate being absorbed in the first precipitate. If the iron is not in the ferric condition it is first oxidized.
Patent GB-147523-A (GB)
Title: Improvements in and relating to water heating apparatus
IPC: F24H1/44
Filed: 1920-07-08
Abstract: 147,523. Voggenauer, J. April 10, 1916, [Convention date]. Heating water.-In arrangements comprising a warm-water heater n and a hot-water boiler a wherein the heater n has means for direct heating such as a flue c for the gases from a fire as well as for indirect heating by hot water or steam coils c, the hot water boiler a has similar direct and indirect heating-means. In the example shown, the boiler fire on a grate b heats also a smaller boiler d circulating water through coils l in the water-space, other coils m being provided for supplementary heating by low-pressure steam. Water heated in the boiler d also flows through a heating-jacket o on the warm-water heater n. Cold water is supplied to the boiler a by the pipe s, steam or hot water passing by the pipe g to the heater n, the supply to taps &c. being taken from the outflow r.
Patent GB-328497-A (GB)
Title: An electrical sound-box for talking machines
IPC: H04R21/04
Filed: 1929-06-25
Abstract: 328,497. Newman, A. M., and Suchomski, J. June 25, 1929. Gramophone pick-ups; microphones and variable-resistance transmitters; systems for transmitting music.-A gramophone pick-up comprises two microphone chambers 3, 4, Fig. 1, or groups of microphone chambers, arranged on opposite sides of the needle-holder lever 1, which chambers are enclosed within a common tubular housing 19. The movable electrodes 5 are con. nected to separate flexible diaphragms 10 connected to the lever 1 or to a single diaphragm 10a, Fig. 2, slotted at 22 to allow movement of the lever 1. The fixed electrodes 6 are connected to the terminals 17, the terminal 18 leading to the electrodes 5 through the casing 13. The two microphone chambers 3, 4, or groups of chambers, are differentially connected to a two-part primary winding 24, 25 of a transformer 26 having a high transformation ratio. The secondary windings 29, 30 are connected in series or in parallel to the loud-speaker 31.
Patent GB-955113-A (GB)
Title: Improvements in mixing taps
IPC: F16K11/18
Filed: 1961-05-30
Abstract: 955,113. Valves. P. DOMBRE, and P. SAFFIN. May 30, 1961 [June 2, 1960], No. 19561/61. Heading F2V. A mixing tap having inlets 3, 4, Fig. 3, and at least one outlet 4 or 5, Fig. 1, has the seats 10, 11 controlled by a rocking member 12 carrying spherical closure members 13 and operated by control member 21, 17 whereby if 21 is moved upwards out of detent 22, seat 10 is closed and member 12 is rockable about spherical member 13 so that seat 11 is opened, and if the member 21 is moved laterally one of the inlets is opened more than the other for controlling the mixture ratio. Universally jointed lever 16, 17 may have flats on ball 16 co-operating with flats on segments movable in cylinder 48, or be replaced by a central member controlling the volume of the mixture screwing through a rotatable cylinder carrying an off-set spring plunger controlling the mixture ratio.
Patent GB-364082-A (GB)
Title: Improvements in and relating to methods of restoring films
IPC: G03C11/06
Filed: 1930-06-27
Abstract: 364,082. Renovating kinematograph films. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. -(Assignees of Wright, J. G. E. ; Mohawk Avenue, Alplaus, New York, U.S.A.) June 27, 1930, No. 19616. Convention date, June 28, 1929. Void [Published under Sect. 91 of the Acts]. [Class 98 (ii).] Shrunken celluloid films are restored to their original dimensions by (1) softening the gelatin picture layer, as by soaking in water, tc prevent injury theretc in subsequent operations ; (2) soaking the film in a camphor solution to elongate it, and (3) drying it under tension. The camphor may be dissolved in alcohol and water and the solution may also contain ammonia and glycerine. For treatment, the film 1 is wound on a frame comprising side bars 3, 4 connected together by a fixed bar 5 and a bar 6 movable away from the bar 5 by operating wing nuts 11. After immersion in water for about half an hour the frame is immersed in the camphor solution for several hours until the film has expanded to its original length. The film is then put under slight tension by displacing the bar 6, and allowed to dry.
Patent GB-434382-A (GB)
Title: Improvements in or relating to stop-valves
IPC: F16K27/04
Filed: 1934-07-04
Abstract: 434,382. Stop valves. HARLOW, B. S., 44, Wellington Road North, Stockport, Cheshire. July 4, 1934, No. 19659. [Class 135] In a stop-valve in which a piston 5, hollow and ported at its lower end, is moved within a ported seating 4 by a screw spindle 12 coacting with a gland or the like 10, in order to withdraw the seating 4 without the use of a special tool, the casing is provided with a normally cap-closed aperture 14<a> screw-threaded to correspond to the gland thread 10<a> so that the gland on removal with the spindle and detachment of the valve may be inserted in the aperture 14<a>. On screwing in the spindle, the valve seat 4 will be ejected. The seating is in three sections separated by packings 16 which are protected from fluid pressure at all times by the piston 5.
Patent GB-883008-A (GB)
Title: Improvements in or relating to couplings for compressed air conduits and the like
Inventor: ERIKSON ERNST BUGGE
IPC: F16L37/252
Filed: 1959-06-09
Abstract: 883,008. Pipe couplings. JARNFORAD. LING A. B. June 9, 1959, No. 19659/59. Class 99(1). In a coupling, e.g. for compressed air conduits, identical coupling halves a, b, Fig. 1, have peripheral diametrically opposed engaging claws 1a, 1b which, on relative rotation of the coupling halves for locking engagement thereof slide respectively on to projections 3b, 3a between the claws 1b 1a and have locking surfaces 2a, 2b engaging the projections 3b, 3a respectively, the latter being at least as wide peripherally as the claws so as to be engaged thereby along their entire width. The projections 3a, 3b are provided with abruptly axially extending end bosses 5a, 5b which, when the coupling halves are connected, are moved along and past the locking surfaces 2b, 2a respectively and outside of the side faces of the claws 1b, 1a respectively, Fig. 4, so as to bear against the latter and lock them against return rotation, the claws being so arranged that when the coupling halves have been engaged they bear against each other in pairs whereby the rotational movement for engaging the coupling halves is limited. The projections 3a, 3b are also provided with beads 9a, 9b for co-operation with recesses 8b, 8a in the locking surfaces 2b, 2a. Sealing bushes 4a, 4b are provided between the coupling halves.
Patent GB-1138459-A (GB)
Title: Improvements in or relating to semiconductor power elements
IPC: H01L23/34
Filed: 1966-05-04
Abstract: 1,138,459. Semi-conductor devices. CKD. PRAHA OBOROVY PODNIK. 4 May, 1966 [6 May, 1965], No. 19680/66. Heading H1K. Semi-conductor diodes and controlled rectifiers have within their housings bimetallic elements arranged to disconnect an electrode of the semi-conductor element from the current supply when a predetermined junction temperature is reached. In the case of the diode of Figs. 1 and 2 (not shown), the bimetallic element is an annulus the inner and outer edges of which are respectively located in grooves in an electrode and in the housing wall. At the predetermined temperature the annulus inverts its direction of flexure and snaps the electrode away from the semi-conductor instead of holding the two together. In the semi-conductor switch of Figs. 3 and 4 (not shown), the control lead runs within a cylindrical main electrode and part of its length is formed by a bimetallic unit one end of which is embedded in the control electrode and the other end of which presses against a contact surface on the terminal part of the lead until the predetermined temperature is reached. In the last embodiment, Figs. 5 and 6 (not shown), a control lead again runs within a cylindrical main electrode and is part constituted by a convex diaphragm which presses against the control electrode until the predetermined temperature is reached when the centre of the diaphragm moves axially to disconnect the supply of control current.
Patent GB-603005-A (GB)
Title: Improvements in the manufacture of moulded bodies by vibratory action
IPC: B28B1/08
Filed: 1943-11-25
Abstract: 603,005. Roads and ways. AKTIEBOLAGET VIBRO-BETONG. Nov. 25, 1943, No. 19683. Convention date, Nov. 28, 1942. [Class 107] [Also in Group V] Apparatus for moulding concrete &c. road surfaces comprises a mould having one of its walls displaceable relative to the remaining walls to compress the concrete in the mould, vibratory means inelastically connected to the displaceable wall, and resilient means acting in compression on the displaceable wall to effect transmission of an elastic pressure to the material in the mould through the said wall. This apparatus is not illustrated by drawings, but Fig. 10 shows a machine for making a large slab, comprising five vibrators resting on a framework 25 which transmits vibrations to the displaceable upper wall 3 of a mould 1. A weight 6 bears through rubber buffers 7 on the wall 3. The lower wall 2 also is displaceable, and rests on a weight 8 supported on rubber buffers 9.
Patent GB-1114831-A (GB)
Title: Improvements in or relating to clamps
IPC: B25B5/14
Filed: 1964-05-12
Abstract: 1,114,831. Clamps. B. W. HARRISON. 10 May, 1965 [12 May, 1964], No. 19694/65. Heading E2B. A clamp for clamping an article at a position comprises a first part 1 having a first jaw and a second part 2 having a second jaw, the parts being connected so as to be movable together to clamp the article at the position in engagement with the jaws, with means to retain the jaws in clamping arrangement and means 8 carried on the first part transversely thereto and having a surface convex to the position. In the Construction shown the part 1 comprises a channel-shaped portion providing a base member 3 and two side members 4 and the jaw comprises two curved arms 6 which extend from one end of the channel shaped portion and which diverge towards their free ends. The means 8 is a rod-like member and as shown there are two such members carried in the channel shaped member between the arms 6 and a pivot 16 which connects the parts together. The arms 6 and the members 8 are covered by resilient material 25. The second part 2 has an end portion 11 also covered by resilient material 25 and this portion 11 provides the other jaw of the clamp. The means for retaining the two parts in clamping engagement comprises a threaded rod 23 which is in threaded engagement with trunnions 18, 21 carried by the parts 1, 2, the trunnions having threads of opposite hand and the parts of the rod engaged by them being correspondingly threaded. The rod 23 has a knurled head 24 or alternatively a head with a socket for engagement by a key. The base member 3 has a handle or support arm 5. In a modification the rod 23 and the trunnions are replaced by a cam or by a spring.
Patent GB-257255-A (GB)
Title: Improvements in or relating to carding machines
IPC: D01G15/20
Filed: 1926-08-10
Abstract: 257,255. Schmitt, J. Aug. 19, 1925, [Convention date]. Carding - engines.- The grid of the lickerin for a carding-engine is provided between the bars d with movable toothed bars e<1>, e<2>, e3 mounted on pivots. These bars can be moved from their working position to a position for cleaning, shown in dotted lines, by a lever h provided with a spring pawl i. The lever can be operated from any suitable part of the carding- engine. The bars are returned to their working positions by springs.
Patent GB-897229-A (GB)
Title: Left-handed pinking shears
IPC: B26B13/10
Filed: 1959-06-09
Abstract: 897,229. Pinking shears. BRISKMAN, S. June 9, 1959 [March 31, 1959], No. 19750/59. Drawings to Specification. Class 30. Flange bladed pinking shears are formed as the mirror image of conventional shears for lefthand use. U.S.A. Specification 2,676,402 is referred to.
Patent GB-816662-A (GB)
Title: Improvements in or relating to bell assemblies
IPC: G10K1/062
Filed: 1956-06-26
Abstract: 816,662. Bells. GENERAL ELECTRIC CO. Ltd., and JUDSON, A. E. June 25, 1957 [June 26, 1956],'No. 19765/56. Class 13. Volume-control is effected by means of a device 9 comprising a plurality of bristles 14 which may be moved so as to provide a variable resistance to the movement of the hammer 2. The bristles may be mounted on a rotatable knob 11, which may alternatively have a screwing action, or on a lever (not shown).