baber/WOPTO huggingface dataset:
Patent GB-699145-A (GB)
Title: Improvements in or relating to hydraulic presses
Inventor: KENNAWAY ALEXANDER
IPC: B29C43/00
Filed: 1951-01-31
Abstract: 699,145. Hydraulic moulding machines IMPERIAL CHEMICAL INDUSTRIES, Ltd. Jan. 14, 1952 [Jan. 31, 1951], No. 2408/51. Class 87 (ii) [Also in Groups XXVI and XXIX]  A hydraulic press comprises two platens at least one of the platens being integral with or rigidly attached to a hollow ram, the cavity of the ram extending over the inner surface of the platen which has a rectangular pressing surface, and means for applying fluid pressure thereto. A hollow ram 2 of circular or rectangular crosssection is advanced in a cylinder 3 by liquid introduced at 14 and retracted by a piston 10 in a cylinder 11 supplied with liquid through a pipe 12, the lower end of the cylinder being connected to the cylinder 3 by a duct 13. The piston 10 is connected to a rectangular platen 1 secured to or integral with the ram 2, the area of the platen 1 being equal to the cross-sectional area of the ram 2. A similar ram 16 in a cylinder 17 is mounted above the cylinder 3 and the cylinders are connected by bolts 28, 29 forming the press frame. A bolt 24 passing into the cylinder 17 through packing means is screwed into a boss 25 on the platen 15 of the ram 16 whereby the height of the platen 15 above the platen 1 may be adjusted.. Liquid is introduced into the cylinder 17 through a duct 27 which is subsequently closed or the cylinder may be supplied with pressure liquid from the same source as and simultaneously with the lower cylinder. The stop bolt 24 may be replaced by flange means on the ram or external stop means. The upper platen may be replaced by a platen rigidly secured to the press. Cored platens electrically or steam heated may be secured to the existing platens or the hydraulic liquid may be heated. Fixtures may be added to form a multi-daylight press. The press may be used for manufacturing large sheets of material comprising plastic compositions such as polyvinyl chloride and sheets of laminated material. Moulds may be placed between the platens to form material which is not flat or the platens themselves may be shaped, the platens, when not integral with the arms, being changeable.
Patent GB-793586-A (GB)
Title: Improvements relating to float valve mechanisms
IPC: A01K7/04
Filed: 1956-01-25
Abstract: 793,586. Float-operated valves. MANCHESTER, C. C. Jan. 25, 1956, No. 2449/56. Class 135. In a float-actuated cistern supply valve the float 24, Fig. 1, is connected to one end of a rod 25, the other end of which is connected to an extension 26 of a sheet-metal hood 30. The sides 32, 33, Figs. 1 and 2, of the hood have slots 36, 37 which normally receive pins 23 extending transversely from a sheet-metal plate 21 mounted on the valve body 11 fixed to a side wall of the cistern 10. The pipe 15, Fig. 1, of a water system is connected to the valve body 11 through which there is a central passage 16. The front plate 30 of the hood carries a soft rubber valve closure member 17. As shown in Fig. 1, when the liquid in the container is at the desired level the passage 16 is closed by the member 17. This desired level may be altered by bending the hood extension 26 in the appropriate direction. The float and the hood are easily removed from the valve body 11 when the passage 16 has to be cleaned. In a modification, Fig. 14, the hood 30 is made integral with a lever 45 by which it is connected to the float 50. To prevent the hood from assuming a position, see Fig. 8, in which the closure member 17 partially or completely closes the passage 16 when the float is at the bottom of the cistern a spring detent fixed to the hood may be provided, Figs. 9 and 10 (not shown). The hood may be modified as shown in Figs. 12 and 13 and be kept in position by a spring latch 57 riveted to the top of the hood at 58. In another example in which the liquid supply may be shut-off when cleaning the cistern the plate 21, Fig. 15, is fixed to a flanged sleeve 69 rotatable on a cylindrical extension 68 of the valve body 65. Surrounding the sleeve 69 is a spring metal plate 72 which is held against rotation by two pins 74 and is provided with two diametrically opposite projections 75 which normally engage recesses in the flange 70 of the sleeve 69. The plate 72 and the flange 70 form a detent by which the hood 30 and the plate 21 may be retained in either of two positions, the first being the normal operative position and the second being an upsidedown cistern cleaning position, Fig. 17, in which the weight of the float causes the closure member 17 to close the passage 16.
Patent GB-177635-A (GB)
Title: A novel or improved device for transposing music for pianofortes, organs, harmoniumsand the like
IPC: G09B15/00
Filed: 1921-01-19
Abstract: 177,635. Happold, F. Jan. 19, 1921. Transposing-scales.-A device for transposing chords and their resolutions or short harmonic phrases comprises a. frame or holder 1 which carries a slidable keyboard strip 3 and is provided with longitudinal wires 4, behind which sheets marked to indicate the chords are inserted, or on which tabs 8 indicating the notes of the chords are strung. The keyboard strip 3 is preferably foldable, and perforations 11 may be provided in the frame to assist in sliding the strip with the finger and thumb.
Patent GB-1012017-A (GB)
Title: Process and apparatus for tempering chocolate and similar fatty compositions particularly in coating plants
IPC: A23G3/22
Filed: 1964-01-21
Abstract: 1,012,017. Continuous discharge mixing apparatus. R. SOLLICH. Jan. 21, 1964, No. 2566/64. Heading B1C. [Also in Divisions A2 and F4] In the tempering of chocolate and similar fatty compositions, freshly tempered and strongly undercooled chocolate composition is continuously mixed with an adjustable proportion of less recently tempered and more highly germinated chocolate, and the mixture is then brought to a suitable temperature for further working up. Chocolate composition supplied by a duct 90 to a collector 17 is carried by a worm 31 in a narrow annular gap along the surfaces of a heating cylinder 25, a tempering cylinder 43, and an after-heating and mixing cylinder 59. The treated chocolate is then delivered by a pump 77 to a coating apparatus 1. Chocolate composition not adhering to the pieces 11 to be coated and normally amounting to about 8/10-9/10 of the quantity supplied, flows into a container 13 to be mixed with the freshly tempered chocolate composition at the point 92 between the tempering cylinder 43 and the after-heating and mixing cylinder 59. The duration of dwell of the less recently tempered and more highly germinated chocolate in the container depends upon the adjustment in height of the overflow 15. The pitch of the worm 31 in the after-heating cylinder is preferably twice as great as the pitch in the heating cylinder and the tempering cylinder. The three cylinders may be arranged separately from each other. Heating fluid (water) kept at a temperature of about 45 ‹C. by a heating coil 37 actuated by a contact thermometer 39, circulates around the collector 17, and across the jackets 27, 45 and 63, respectively, of heating cylinder 25, tempering cylinder 43 and after-heating cylinder 59 in parallel flow.
Patent GB-538319-A (GB)
Title: Improved method of optically copying sound tracks
IPC: G11B7/28
Filed: 1940-02-10
Abstract: 538,319. Photographic sound records. PHILIPS LAMPS. Ltd. Feb. 10, 1940, No. 2614. Convention date, Feb. 13, 1939. [Class 98 (ii)] In the photographic reproduction, by optical projection, of sound record tracks which are mechanically cut in a carrier comprising a recording layer and an opaque covering layer, the effect of lens action in the recording layer is avoided by illuminating the track with transmitted diffused light, and focusing the projection system on the covering layer, preferably on the surface thereof remote from the recording layer. An objective with little depth of field is preferably used, e.g. a microscope objective. As shown, the original record 13, Fig. 1, is illuminated through the support 12 by a lamp 10 with a diffusing screen 11, and an objective 16, focused on the opaque covering layer 15, projects an image on to the light-sensitive copy film 17. Stray light may be intercepted by a diaphragm 18. In a modification, the record is illuminated obliquely from the front by a lamp and condenser system, and a mirror is placed behind the support 12 to reflect the light back to the objective. In this case, diffusion of the light is effected by a diffusing layer on the rear of the support 12 or by frosting the surface of the mirror.
Patent GB-413590-A (GB)
Title: Improvements relating to apparatus for feeding insecticide material into an air stream
IPC: A47L7/04
Filed: 1934-01-25
Abstract: 413,590. Powder distributers. AIRWAY ELECTRIC APPLIANCE CORPORATION, 2101, Auburn Avenue, Toledo, Ohio, U.S.A. Jan. 25, 1934, No. 2652. Convention date, Jan. 30, 1933. [Class 18.] Apparatus for delivering insecticide to an air stream, e.g. of a vacuum cleaner such as is described in Specification 335,672, [Class 18], comprises a chamber B delivering material to an air conduit A and receiving the material from a superposed detachable container C through a hopper 18 having flow-controlling means. The hopper carries brackets 23, 24 in which is journalled a post 27 which carries a rotatable agitator cone 38. The top of the post is formed with a cam skirt 30 adapted to engage a cam sleeve 28 on the bracket 23 either in the position shown or in a diametrically opposed position, and thus to vary the height of the cone and rate of discharge of material. The cone may be oscillated by a push rod 42 operated by a handle 45, a link on which rod is pinned to a sheet metal lever secured to the cone.
Patent GB-1445522-A (GB)
Title: Method for producing high molecular weight acrylamide copolymer resins
IPC: C02F1/54
Filed: 1974-01-21
Abstract: 1445522 Copolymerizing acrylamide with a vinyl monomer SUMITOMO CHEMICAL CO Ltd 21 Jan 1974 [25 Jan 1973] 02660/74 Heading C3P Acrylamide is copolymerized with a monovinyl monomer in a mixture of acetone and water in the presence of a Redox catalyst comprising a persulphate, an aliphatic amine or imine and as a Lewis acid a chloride or bromide of Al, Sb, Li or Zn. The comonomer may be acrylonitrile, acrylic acid or a salt thereof, methacrylic acid of a salt thereof or vinyl pyridine and the persulphate may be K, Na or ammonium persulphate. In the examples acrylamide is copolymerized with acrylic acid neutralized with NaOH in water and acetone in the presence of polyvinyl alcohol using H or Na persulphate, ZnCl 2 , ZnBr 2 , LiCl, AlBr 3  or antimony chloride and one of dimethylaminoethanol, triethanolamine, tetramethylhexamethylenediamine and tetramethylpropylene diamine.
Patent GB-1287583-A (GB)
Title: Improvements in the weaving of fabrics
Inventor: MILLINGTON ARTHUR WILLIAM
IPC: D03D47/00
Filed: 1969-01-16
Abstract: 1287583 Weft thread supply BRITISH VISQUEEN Ltd 6 Jan 1970 [16 Jan 1969] 2665/69 Heading D1E The speed of rotation of a driven weft thread package 1 is varied, to maintain a reserve 2 of weft thread for a gripper loom, in response to the length of thread of the reserve 2. The package 1 is driven by a motor 10 through a belt 9 which passes over opposed cones 7, 8 and is movable with a block 12 engaging a threaded shaft 11. The shaft is rotated to move the block 12 through a one-way clutch 6 actuated by an arm 5 carrying a loop 4 through which the thread passes. The thread may be a plastics tape.
Patent GB-342128-A (GB)
Title: Improvements in or relating to electric stop-motion devices for textile warping apparatus
IPC: D03D51/28
Filed: 1930-01-25
Abstract: 342,128. Warping; stopmotions. REINERS, W., (trading as SCHLAFHORST & Co.), Gladbach, Munich, Germany. Jan. 25, 1930, No. 2690. Convention date, Feb. 9, 1929. [Class 142 (iv).] In warping apparatus having a stopmotion device operated by the movement of pivoted thread-guides when a thread breaks or fails, the thread-guides are arranged in banks, one above the other, and the electric contacts operated by the guides in each bank are enclosed in a single switchbox or in separate switchhoxes placed side by side. In one construction, the contacts in the form of bars 4, 5, Figs. 3 and 4, pass through a series of switchboxes 7, on each of which is mounted a metal disc 2 insulated from one of the rods and adapted to carry a thread-guide 1. Alternatively, the switchbox 7 may be common to all the guides in a bank, as shown in Fig. 6. In a modification, each thread-guide 1, Figs. 8 and 10, is provided with a hollow switchbox 7 of nonconductive material, and the combined unit is pivotally mounted between arms 18, 24 carried by contact rods 20, 21 respectively, a drop of mercury 23, or other loose body being provided inside the box to make contact when the guide member drops. A bright or luminous body, such as a piece of red glass 25, may be provided at the end of a moving switchbox so that the attention of the operative may be drawn to the place where the rupture has occurred.
Patent GB-1112411-A (GB)
Title: Improvements in and relating to semiconductor devices
Inventor: BEALE JULIAN ROBERT ANTHONY
IPC: H01L31/173
Filed: 1965-01-21
Abstract: A radiation-emitting PN junction is situated between a first, low-resistivity N-type, region and a second, P-type, region formed by epitaxial deposition of higher-resistivity material (either P or N type) on the first region and the diffusion of an acceptor element into the epitaxially-deposited material, the PN junction lying in the vicinity of the interface between the first region and the epitaxially-deposited material, the concentration of acceptors at the PN junction being substantially determined by the diffusion of the acceptor element, and the concentration of acceptors in the second, P-type, region being less than the concentration of donors in the first, N-type, region.  In one embodiment, a semi-conductor lamp, the first region is of gallium arseno-phosphide heavily doped with tin and the epitaxially-deposited material is gallium arsenide (which has a lower energy gap) more lightly doped with zinc. Some of the tin is diffused across the interface into the gallium arsenide during a preliminary heating step, and further zinc is then diffused into the gallium arsenide so that the PN junction lies in the gallium arsenide about one micron from the interface with the gallium arseno-phosphide.
Patent GB-814066-A (GB)
Title: Improvements in rotary compressor systems
IPC: F04B41/06
Filed: 1958-01-28
Abstract: 814,066. Rotary compressors. NICHOLS, T. W. Feb. 21, 1958 [Jan. 28, 1958], No. 2797/58. Addition to 797,311. Class 110 (2). The rotary compressor plant described in the parent Specification has the outlets 19 from the compressors 1, 2, 3, 4 connected to a central delivery valve box 25, which is provided with outlet valves 27, leading to a common delivery 24 leading to an air receiver, separate suction ports for the compressors being supplied from a pipe 20. Alternately, the suctions may be arranged in a common valve box and the deliveries feed into a surrounding pipe.
Patent GB-231277-A (GB)
Title: Improved anti-splash mud shield for road vehicle wheels
IPC: B62D25/18
Filed: 1924-02-04
Abstract: 231,277. Hyde, H. C. Feb. 4, 1924. Lateral-splash guards for roadvehicle wheels supported on a vertically adjustable bracket on a bearing on the wheel hub, and having an adjustable stay connection to the steering tie-rod, are provided on the inside of the flap with two vertical curved springs f to cause the lower edge only of the flap to curl up on meeting an obstruction. A horizontal longitudinal spring - steel buffer bar e with incurved ends is attached to the outer face of the flap near to the lower edge.
Patent GB-159746-A (GB)
Title: Improvements in the manufacture of thermometers
IPC: C03B23/207
Filed: 1920-01-29
Abstract: 159,746. Morton, F. Jan. 29, 1920. Thermometers.-The whole cf the thermometer column with the exception of the bulb is enclosed in a glass or like tube which is sealed to the column, and the space between the column and the tube is evacuated.
Patent GB-877491-A (GB)
Title: Improvements relating to spinning rings and holders therefor
IPC: D01H7/62
Filed: 1958-01-28
Abstract: 877,491. Spinning - ring assemblies. MERRIMAN BROS. Inc. Jan. 28, 1958 [Sept. 11, 1957], No. 2820/58. Class 120(2) A spinning-ring assembly comprises a split ring-holder 2 having an oil-reservoir 6 and a traveller-ring 50; the ring is of rigid porous metal and has a circumferential groove 60 defining an annular chamber between the ring- member and the holder, which chamber holds a lubricating-wick of which the ends dip in the reservoir. The wall of the ring-holder may or may not have flanges 32, 34 received in an additional groove 58 in the ring and the wickgroove may be in two parts separated by a rib which serves to strengthen the ring and which has a gap allowing the wick to cross from one part to the other. Two wicks may be used, one in each part supplied with oil of different viscosities, the reservoir being subdivided accordingly; the flanges may extend to the part of the ring embraced by the traveller, in which case the parts of the wick-groove may be correspondingly lengthened; and the two grooves may each occupy a third of the ring-thickness. The split parts of the ring-holder are drawn together by a nut and bolt to secure the ring in position, and they may have lugs to secure it to the ring-rail.
Patent GB-974286-A (GB)
IPC: A01B15/04
Filed: 1962-01-23
Abstract: 974,286. Bed settees. P. F. W. JORGENSEN. Jan. 23, 1963 [Jan. 25, 1962; May 30, 1962], No. 2840/63. Heading A4J. A bed settee comprises a frame 13, an undisplaceable lower couch 10, and upper couch 12 and a back rest 67. To convert the sofa to a bed the back rest 67 is lifted forward from stop members 82, the front of the upper couch 12 is lifted to free a pin 84 from the frame 13 and the couch 12 is pulled forward to stand on its front legs 40 with its rear frame member 32 resting on the front frame member 16 of couch 10. The movement of couch 12 is guided and the forwards movement restricted by an arm 52 pivoted to the rear of couch 12 having a roller 54 which runs along a groove 56 in a side guide 22 on couch 10. There may be incorporated in the bed settee a guide device preventing oblique displacement of the upper couch 12 comprising a spring actuated shaft 92, which is rotatably mounted in bearings 90, extending along the rear of couch 10 with two spools 94 of nylon cord 98 mounted on either end. The free ends of the cords 98 are secured to the stop members 82 so that an oblique pull or push on the upper couch 12 will be counteracted by the spring actuated shaft by keeping one cord 98 tight until the upper and lower couches are again parallel. The legs 40 and 24 which fit together in the sofa position to appear as one may be shaped (Fig. 7, not shown) so that the leg 40 fits behind part of leg 24 which would prevent forward movement of the couch. Supporting lists 38 are provided to ensure a suitable inclined position of the sofa seat.
Patent GB-1074415-A (GB)
Title: Dipole arrays
IPC: H01Q21/22
Filed: 1966-01-21
Abstract: 1,074,415. Aerials. L. J. CHU. Jan. 21, 1966 [Jan. 27, 1965], No. 2915/66. Heading H4A. In a dipole array comprising a parallel pair feeder from which the aerial elements extend transversely, some of the said elements are divided into segments by insulators, which are bridged by inductive loading loops.. Additionally, capacitative loading is provided at the outer ends of some of the elements by means of conductors extending longitudinally and preferably orthogonally therefrom towards the next adjacent elements of the array. In this way, the physical sizes of the elements for use at particular frequencies may be reduced. Tuning may be effected by varying the numbers, lengths and shapes of the capacitative loading conductors, and such an array may be adapted for operation as a log periodic array.
Patent GB-907768-A (GB)
Title: Improvements in or relating to bonded plastics
Inventor: CAWLEY STEPHEN ROBERT
IPC: B32B27/00
Filed: 1959-01-27
Abstract: 907,768. Laminates. TOUGH PLASTICS Ltd. Jan. 8, 1960 [Jan. 27, 1959], No. 2929/59. Class 140. Polyester or epoxy resin layers reinforced with fibres, preferably glass fibres, are bonded to vinyl chloride or vinylidene chloride polymers or copolymers in sheet or tube form by applying a softening agent to, and allowing it to penetrate the polymer or copolymer layer, evaporating off excess softening agent, and applying the reinforced layer and allowing it to harden. Suitable softening-agents are styrene, tetrahydrofuran, and dioxolane. Solvents incompatible with the setting resin used must be completely removed before applying the resin layer. Preferably a polyester based on maleic anhydride and cross-linked with styrene is used, and in this case it is not essential to evaporate off all the styrene if this is used as softening-agent. The time of operation of the solvent is controlled by controlling the conditions of temperature and air circulation. In addition to the usual catalyst and accelerator constituents the setting resin layer may contain a thixotropic agent such as blown silica. The polymer or copolymer layer may be roughened, as by sanding, before treatment with the softening-agent.
Patent GB-1196343-A (GB)
Title: Improvements in or relating to Waste Heat Boilers
Inventor: BLACK ROY WILLIAM CHARLES
IPC: F22B1/18
Filed: 1968-01-19
Abstract: 1,196,343. Waste heat boilers. SPANNER BOILERS Ltd. 20 Dec., 1968 [19 Jan., 1968], No. 2944/68. Headings F4A and F4S. In a wate-heat boiler wherein heating-gases flow through tubes b extending through the boiler shell e between gas inlet and outlet headers f and g, and wherein a by-pass tube h also extends between the headers, the proportion of gases directed through the by-pass tube is regulated by a sleeve valve j located at one end of the by-pass tube and rotatable on an axis extending at right angles to that of the by-pass tube. The valve shown is mounted on spindles n and is rotatable, e.g. by a hand wheel p or a motor so as to bring an aperture k in the valve wall more or less into alignment with the by-pass tube h. Hence, hot gases entering the boiler through a port l at the end of the sleeve valve, exit from the valve through the aperture k and flow therefrom into the by-pass tube and/or into the tubes b.
Patent GB-456052-A (GB)
Title: Improvements in or relating to supporting shelves for storage cabinets or the like
IPC: A47B57/08
Filed: 1935-01-29
Abstract: 456,052. Shelves. ELECTROLUX, Ltd., Luton, Bedfordshire.-(Assignees of Platen- Munters Refrigerating System Aktiebolag ; 2, Norrmalmstorg, Stockholm) Jan. 29, 1935, No. 2954. Void [Abridged as open to inspection under Sect. 91 of the Acts, Aug. 1, 1935]. [Class 52 (i)] [See also Group XI] Shelves for storage cabinets or for heating or cooling chambers are supported by lateral projections so arranged that on reversal the shelf is raised or lowered. The projections may be opposed flanges 14 of unequal depth, flanges on one side only of the shelf, or horizontal flanges offset from the plane of the shelf.
Patent GB-1017289-A (GB)
Title: Improvements in and relating to h.f. heating apparatus
Inventor: MCDOUGALL CLARK JOHN
IPC: H05B6/54
Filed: 1964-01-23
Abstract: 1,017,289. Dielectric heating. INTERTHERM Ltd. Nov. 25, 1964 [Jan. 23, 1964], No. 2971/64. Heading H5H.  Dielectric heating apparatus comprises a plurality of rod electrodes arranged in two groups 1 ... 10 and 11 ... 20, the odd numbered rods 1 ... 9 and 11 ... 19 being connected to bus-bars 28, 29 energized from an H.F. supply, and the even-numbered rods 2 . . . 10 and 12 ... 20 being connected to two plates 31, 32, which with a movable plate 36 form a tuning capacitor in a series circuit, Fig. 1 (not shown). In an alternative arrangement, Figs. 4, 6 (not shown), the tuning capacitor is in parallel with the electrode capacitances.