baber/WOPTO huggingface dataset:
Patent GB-458586-A (GB)
Title: Improvements in and relating to cathode ray tubes
IPC: H01J29/43
Filed: 1935-03-20
Abstract: 458,586. Photo electric cathodes. KLATZOW, L., 20, Chepstow Villas, Bayswater, London. March 20, 1935, No. 8740. [Class 39 (i)] In a method of treating a photo-electric mosaic screen, for example, for use in cathoderay tubes, a thin layer of metal is deposited over the whole of the surface on which the mosaic elements are formed and the screen is baked so as to reduce the conductivity of the layer of metal as between the mosaic elements, without injuriously affecting the photo-electric material. Preferably, the baking is carried out at a temperature between 100 and 200‹ C. A suitable metal is silver, but other metals, such as tantalum, molybdenum, iron, tungsten, platinum, nickel, copper, and gold may be employed. A temperature of 170-180<‹> C. is most satisfactory for silver. The treatment improves the sensitivity of the screen, without increasing secondary emission, and increases the resistance between each element of the mosaic. When the photo-electric surface is caesium on silver oxide, the treatment with metal reduces the electrical resistance of the silver oxide base. The treated screens may be used in television transmitting tubes of the kind described in Specification 426,505, in which the screen is scanned by a light beam.
Patent GB-901318-A (GB)
Title: Improvements in or relating to punch presses
Inventor: BELL JAMES
IPC: B21D45/00
Filed: 1959-03-13
Abstract: 901,318. Punching. DOWDING & DOLL Ltd. April 4, 1960 [March 13, 1959], No. 8768/59. Class 83 (4). A punch-press comprises a crank-shaft 2 driving a ram 1, and a work-stripper 16 positioned by means 8, 14, 7 operated by the crankshaft and ram, the stripper being restrained from moving with the punch 5 during withdrawal of the punch from the work 13. Projections 17 on the punch-holder 4 are embraced by the stripper-sleeve 16, which has limited axial movement relatively to the holder. Keys 7 loosely mounted on the holder 4 engage keyways in a guide 6 and have projections 7a movable in short keyways in the holder. Overlaying the keys 7 are blocks 15 on rods 14 connected to cross-heads 8 which have slots 10 engaged by a pin 9 in the ram 1. Movement of the crank-shaft 2 from its top deadcentre moves pin 9 to the bottom of slots 10, so that the punch projects from the bottom of sleeve 16. The cross-heads 8, rods 14, blocks 15 and keys 7 then move down with the ram, and the punch pierces the work. At the bottom deadcentre of the crank-shaft, arcuate plates 11 on the crank-shaft engage rollers 12 on the crossheads, preventing upward movement of the sleeve 16 until the punch has cleared the work.
Patent GB-460820-A (GB)
Title: Improvements in self-massaging apparatus
IPC: A61H7/00
Filed: 1936-03-24
Abstract: 460,820. Massage and body-washing apparatus. PERLZON, J. March 24, 1936, No. 8816. [Class 81 (ii)] Apparatus for self-massage and washing of the body comprises an endless band applicator 1, Fig. 2, of sponge rubber or the like mounted on rollers 2, 2<1>, between side members 3 of an open casing having extensions 3<1> offset inwardly and extending into a bath 25 when the casing is supported thereon. The spindle 5<1> of the roller 2<1> is rotated through external belt and pulley transmission by a shaft 20 in a closed casing 12 also housing an electric motor 13 and plain and bevel pinion reduction gearing 14 ... 19 driving the shaft. A flexible shaft 22 connectible to the shaft 20 carries an additional hand-held massage member 23. The spindles 5, 5<1> are supported in oppositely inclined oblique slots 6, 8, the spindle 5<1> having bearing blocks resting on screws employed to tension the band 1 by raising the blocks and permit removal of spindle 5 prior to removing spindle 5<1> when the blocks are lowered. In Fig. 5, a casing 29 adapted for support on a stool, contains a sponger rubber or like roller applicator 28 rotated by a motor 33 through bevel gearing 36, 37 which also drives, by a bevel wheel 38, a shaft 39, connectible to a hand-held massage appliance. The roller 28 has a squared spindle 30<1> engaging a squared socket 32 in the driving shaft. On lifting the roller its lower spindle 30 can be disengaged from its bearing 31 and the bearing itself unscrewed and removed, whereupon the roller can be lowered to disengage spindle 30<1> from its socket for removal or replacement of the roller. Liquid soap may be supplied to the roller and lateral splashing prevented by the provision of a splash board on one side of casing 29. The roller may be hollow and be warmed in use by filling with hot water. The supplementary massage appliance may be driven from one of the applicator spindles.
Patent GB-239793-A (GB)
Title: Improvements in caps for the carbons of batteries
IPC: H01M50/552
Filed: 1925-04-02
Abstract: 239,793. Kleinmann, E. April 2, 1925. Connections to carbons. - A contact cap for battery carbons consists of a cylindrical member b having a flared opening c which may be obtained by shaping the lower end of the cap in various ways. The cap may be provided with a terminal t.
Patent GB-1534916-A (GB)
Title: Tractor-implement combination
IPC: B60D1/62
Filed: 1976-03-05
Abstract: 1534916 Remote control of tractor-drawn implement DEERE & CO 5 March 1976 [7 April 1975] 08829/76 Heading A1F A tractor-drawn forage harvester 12 has certain functions remotely controlled from the tractor 10 by a set of levers 50, 51, 52, each actuating via a hydraulic system (Fig. 2) a respective hydraulic cylinder 40, 42, 48 which control respectively the position of a deflector cap 39, position of a discharge spout 38 and the speed and sense of rotation of feed rolls for the cutter head 35, the hydraulic system being such that a single input (pair of hydraulic lines 90, 92) divides into any desired number of outputs (e.g. 40, 42, 48). The harvester 12 is hitched by its draft arm 32 to the tractor at 33, and the tractor's hydraulic feed line is coupled at 28, 30 to lines 90, 92 leading to a valve package 72 which is detachably engaged at 108, 110 (Fig. 3) to the levers 50, 51, 52 fixed to the rear wall 20 of the tractor cab.
Patent GB-1468504-A (GB)
Title: Microfiches
IPC: G03C11/02
Filed: 1974-02-19
Abstract: 1468504 Micro-fiche HAH SPENCE-BATE 19 Feb 1974 [23 Feb 1973] 8875/73 Heading G2X A composite micro-fiche which can be updated comprises a permanent fiche 11 with permanent data image frames 14 in an emulsion 11a, and an updating fiche 10 with updating data image frames 12 in an emulsion 10a. The two fiche are superimposed with their emulsions in contact, the two sets of image frames being positioned so that they do not overlap. As can be seen in the Figure, the data on the fiche 10 is laterally inverted with respect to that on fiche 11 - this is so that there is no inversion when the fiche are superimposed for viewing. The fiche are joined by a strip of adhesive tape 15 and have holes 16 to facilitate  alignment. The construction of the composite fiche results in the emulsions being protected from scratching during handling.
Patent GB-236985-A (GB)
Title: Improvements in and relating to frozen confections
IPC: A23G9/32
Filed: 1924-04-08
Abstract: 236,985. Alexander, A. E., (Popsicle Corporation). April 8, 1924. Ice-cream and like preparations.- A frozen confection comprises an edible, portion 4, of frozen syrup, water, or sherbet mixture, and a stick 2 embedded in, and extending through the whole length of, the portion 4. The stick 2 is preferably of square section and is inserted in a test-tube or other container which is then wholly or partly filled with a suitable frozen confection. The tube is placed in a refrigerator and the confection is thus frozen to the. stick. The completed confection is removed from the tube by dipping the tube in warm water or otherwise slightly thawing the exterior of the confection. The conical portion 5 is formed by the expansion of the confection during the freezing. The confection may be made in a container of paper or like material which is torn off immediately before eating. Specification 209,692 is referred to.
Patent GB-580889-A (GB)
Title: Improvements in or relating to packings between normally stationary parts for use preferably in internal combustion engines
IPC: F02F11/00
Filed: 1944-05-10
Abstract: 580,889. Joint-making packing. GANZ, H. May 10. 1944, No. 8944. [Class 122 (iii)] [Also in Group XXVII] Packing means between two cylindrical members, e.g., the jacket and liner 2 of an internal combustion engine cylinder comprises a sleeve 7 secured at its ends to one of the members and having a ring portion 8, pressed against the other member by elastic deformation on insertion. The sleeve may carry a second packing portion 6 at the end of a deformable sleeve 5. Cooling medium may be supplied to the space 4.
Patent GB-214256-A (GB)
Title: Improvements in toothed gearings particularly adapted for turbine plants
IPC: F01D15/02
Filed: 1924-04-09
Abstract: 214,256. Aktiebolaget Ljungstr÷ms Angturbin. April 10, 1923, [Convention date]. Driving and transmission mechanism, special applications of.-In turbine plants adapted particularly for ships and locomotives wherein toothed gearing for at least three consecutive speed reductions is used, one or more of the gear-wheels are provided', in known manner, with deepened tooth spaces 48, Fig. 4, displacements arising from stresses due to errors of pitch being taken up by the elasticity of the roots 49 of the teeth 47. The root 49 may be elongated axially beyond the engaging surface of the teeth 51, 52, Fig. 5, or the whole tooth 5 may be so elongated. The width of the deepened tooth spaces measured on the pitch circle may be considerably larger than the width of the tooth root. In a modification groups of teeth on a gear-wheel may be separated by deepened tooth spaces. The invention is illustrated by two turbine plants, the first for a locomotive, comprising a turbine with three consecutive reduction gearings and known diaphragm couplings for the shafts, the second for a ship, comprising high and intermediate turbines transmitting through four-speed reductions, and a lowpressure turbine transmitting through two speed reductions, flexible couplings being provided in known manner for the shafts and reversing being obtained in known manner by the radial displacement of certain gear shafts.
Patent GB-642703-A (GB)
Title: Improvements in and relating to anode structures for magnetrons
IPC: H01J23/22
Filed: 1945-04-11
Abstract: 642,703. Magnetrons. BRITISH THOMSONHOUSTON CO., Ltd. (General Electric Co.). April 11, 1945, No. 9091. [Class 39 (i)] An anode for use in a high-frequency discharge apparatus comprises an even number of sections 19, 20, Fig. 2, separated by cavities 17 and slots 18. On one face all the evennumbered sections are conductively connected by staple-shaped copper wires 63, 65, 67 and 69 and the odd-numbered sections by wires 62, 64, 66, 68. The opposite face has a similar arrangement of connections but at least one wire in each ring is omitted, as shown in Fig. 3, or possibly two or more in each ring. An output coupling loop 70 is inserted in one of the cavities, preferably that one opposite the gap in the connections, or at right-angles, but not adjacent the gap. The conductors may be inserted into small holes in the anode sections and soldered in position and gauges may be used to shape them to adjust the natural frequency of the electrode. Fig. 1 shows a magnetron embodying such an anode structure comprising a metal tube 10 with cooling fins 13 and a mounting fin 14 having the anode 15 brazed to the interior of the tube by rings of brazing material in channels 27. A large channel 28 reduces the weight of the anode. An indirectly-heated cathode is supported coaxially within the anode space 16 by magnetic polepieces 35 and 36 of Alnico, whose ends 37 and 38 may be copperplated. An output coupling loop 70 forms the inner conductor of a coaxial line having a tubular part 73 as is outer. Both conductors have tapered enlargements 77 and 74 outside the envelope, the ratio between the diameters of the conductors being always constant to avoid change in the characteristic impedance. Specification 635,479 is referred to.
Patent GB-1444894-A (GB)
Title: Constant velocity ratio joint process for curing a radiation-curable resin
IPC: F16D3/223
Filed: 1973-10-11
Abstract: 1444894 Universal joint LOHR & BROMKAMP GmbH 11 Oct 1973 [27 Oct 1972] 09101/76 Divided out of 1443800 Heading F2U A homokinetic universal joint comprises torque transmitting balls 7 guided by a cage 8 with part-spherical inner and outer surfaces 11, 9 engaging complementary part-spherical surfaces 12, 10 on inner and outer joint members 4, 2 having grooves 6, 5 receiving the balls, the centres of curvature 54, 52 of the grooves being on lines 55 parallel to the joint axis and at distances g from the joint centre plane E equal to or greater than the distance between an open end face 58 and the joint centre plane. The grooves therefore have no undercut portions in the longitudinal direction thereby allowing manufacture of the grooves by cold extrusion or sintering.
Patent GB-1152298-A (GB)
Title: Watertight Timepiece Case and device and method for Assembly thereof
Inventor: PIQUEREZ ERVIN
IPC: G02B7/00
Filed: 1968-02-26
Abstract: 1,152,298. Timepiece cases E. PIQUEREZ. Feb.26, 1968 [Feb.24, 1967; June 1, 1967], No.9129/68. Heading G3T. In a watertight timepiece case, a crystal 1 is fitted to a middle bezel 8, a groove 3 in the crystal and a groove 12 in the bezel forming a housing for a joint 4 of elastically deformable material. A tubular tool 5, the inner diameter of the lower end of which is equal to the inner diameter of the bezel, is used to initially compress the joint in the groove 3 and then to guide the crystal as it is inserted in the bezel. The crystal rests on a dial 14 and has an extraction groove 2. The groove 12 may have a rounded cross-section. In a modification a second joint is provided at the lower edge of the crystal and the inner edge of the bezel forms a frusto-conical guide surface. A similar surface is formed on the crystal so that the guide tool is not required to assemble the crystal and the bezel. Embodiments of the invention for securing a crystal to a watch bottom and a middle bezel to a watch bottom are also described.
Patent GB-643021-A (GB)
Title: Improvements in or relating to gas filter cleaning devices
IPC: B01D46/42
Filed: 1947-04-03
Abstract: 643,021. Rotary gas filters. AIR CONTROL INSTALLATIONS, Ltd. April 3, 1947, No. 9186. Convention date, April 8, 1946. [Class 8(ii)] In a gas filter of the kind in which the filtering medium encircles a drum 1 and in which there are provided means for generating a difference in pressure between the inside and outside of the drum, and wherein a suction header 3 extends along and in close proximity to the filtering face and is rotated relative to the drum to remove dirt from the filter, the latter comprises a sleeve 11 of sheet material each end of which is gripped by contractible rings which encircle the ends and draw them into circumferential grooves 12 leaving the rest of the sleeve free to be sucked away from the drum in the region of the suction header. The drum is mounted on 'shaft provided with an end plate and radial supporting arms and driven by an electric motor through chain gearing. The drum may be oscillated or it may remain stationary and the header 3 rotated or oscillated.
Patent GB-117252-A (GB)
Title: Improvements in Toy Building Elements.
Inventor: CHAPPUIS JOHN ALBERT
IPC: A63H33/10
Filed: 1918-06-04
Abstract: 117,252. Chappuis, J. A. March 16, 1918, [Convention date]. Mechanical construction.s, details for building up. - An outfit for building articles such as machines or parts of machines comprises an assortment of three construction elements, viz. :-a U-shaped metal clamp with a screw b and an opening e in each of its arms c, d; a metad wheel perforated at the centre f; and a metal rod. The space D between the arms of the clamp is equal to the width of the opening e, the length of which is equal to twice its width. The diameter of the hole f in the wheel is equal to the space D of the clamp, and the widths of the arms k and the peripheral portion of the wheel are slightly less than the space D, so that a clamp may be placed around an arm or around the peripheral part of the wheel. The thickness of the wheel is such that two wheels can be secured face to face by a clamp, and the diameter of a rod is slightly less than that of the hole f in the wheel. Fig. 7 shows an assemblage of three rods at angles to each other, and Fig. 11 shows part of the framework of a carriage with wheels. A chair, bearing, bridge, aeroplane, piledriver, catapult, &c. may be constructed with the elements.
Patent GB-549342-A (GB)
Title: Improvements in carrier-signal frequency-detector systems
IPC: H03D3/12
Filed: 1941-07-22
Abstract: 549,342. Frequency modulation. HAZELTINE CORPORATION. July 22, 1941, No. 9246. Convention date, Aug. 12, 1940. [Class 40 (v)] A detector for a frequencymodulated system comprises a pair of networks arranged to give minimum output at two different frequencies f1, f2 which are situated symmetrically on opposite sides of the mean frequency fo, and to give peak outputs at frequencies beyond the normal operating range f1, f11. A linear relation is obtained between frequency variation and detected output if such a pair of networks is followed by square law detectors with differential output. Alternatively the pair of networks may feed a succeeding similar pair followed by linear detectors. The IF output from a stage 14 is kept constant by an AVC system 20 and is fed in parallel to limiting or linear amplifiers 21, 22. Their output is fed to the respective networks 27, 28 each comprising a series-resonant branch, a condenser, and an inductance all in parallel. The network 27 has its series-resonant branch tuned to the frequency f1, Fig. 2a, .and gives peak response at frequencies beyond f1, f11 one peak being more marked than the other as shown in the full line curve d. The other network 28 gives a response wave e shown . in dotted lines. Owing to the linearity of the curves d, e between the limits f1, f11, the output from the squarelaw detectors 37, 38 follows the parabolic curves g, h of Fig. 2b, and their differential combination yields a linear output as shown in Fig. 2c. The detectors 37, 38 are shown as biased pentodes with their output -differentially combined by -a push-pull transformer 40. In the alternative arrangement shown in Fig. 3, the output from the first pair of networks 52 is fed through coupling amplifiers 53 to a similar second pair 54, giving IF outputs following the curves g, h of Fig.2b. These are fed to linear rectifiers 46, 47 connected with opposite polarity to load resistances 48, 49. The output is taken between the earthed junction of resistances 48, 49, and the junction of resistances 50, 51 connected across the former.
Patent GB-717539-A (GB)
Title: Improvements relating to the control of mine hoists and the like
Inventor: GREAVES REGINALD DOUGLAS
IPC: B66B5/08
Filed: 1952-04-10
Abstract: 717,539. Mine hoist control. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. April 8, 1953, [April 10, 1952.] No. 9278/52. Class 78 (5). A device in a mine hoist for coupling the man/ ore changeover lever 9 to crankshaft 4 which mounts man/ore cam followers 1, 6, comprises a first lever 13 having a slot 16 and a second lever 14 carrying a corresponding pin 15, the arrangement being such that, when lever 9 is moved to either man-winding or ore-winding position, the first and second levers move to a position at right angles to one another so as to lock the crankshaft in position. As shown, cam followers 1 and 6 are connected respectively at 8, 7 by the Ward- Leonard rheostat system to the winch speed control, and crankshaft 4 is connected to and operated by the man/ore changeover control lever applied at the variable point 10 on lever 9 secured to shaft 4. Shafts and 17 are coupled so as to rotate together through quadrants 11, 12 and are locked in either end position by the interaction of pin 15 and slot 16 so that, when either arm follower is engaged the crankshaft 4 is prevented from rotating. The device may be applied where separate cams are provided for each direction of travel of the hoist.
Patent GB-1127211-A (GB)
Title: Improvements in or relating to alloys
Inventor: BIDDULPH RICHARD HAMPTON
IPC: C22C21/00
Filed: 1965-03-04
Abstract: 1,127,211. Producing Al alloys. UNITED STATES BORAX & CHEMICAL CORP. March 3, 1966 [March 4, 19651, No. 9279/65. Heading C7D. Aluminium containing finely divided crystalline metallic boride (e. g. of Ti, Zr or Cr) is made by mixing molten Al, the finely divided boride and a flux containing a fluoride. The flux may be a complex fluoride (K 2 ZrF 6 , K 2 TiF 6  or Na 3 AlF 6 ) or a mixture of fluorides with other halides (alkali metal fluorides and iodides or chlorides). The product may be added to aluminium during casting in order to refine the grain thereof.
Patent GB-832374-A (GB)
Title: Improvements in aluminium phosphate dispersion
IPC: C01B25/36
Filed: 1957-03-21
Abstract: A process of producing an aluminium phosphate coating composition comprises reacting in an aqueous medium a water-soluble aluminium salt with at least its stoichiometric equivalent of a water-soluble orthophosphate, filtering the precipitate, washing with water in an amount up to about 75% of the volume of the slurry, dispersing the filter cake in water by means of a water-soluble phosphate, e.g. a metaphosphate, a pyrophosphate or a polyphosphate and adjusting the pH of the dispersion to between 4 and 10.5 previous to milling the dispersion to a particle size of 1 micron and less.  Prior to milling about 1% of water-soluble inorganic salt of aluminium, magnesium, calcium or zinc is added to confer thixotropy on the dispersion. Additionally a flocculating agent may be added to the slurry prior to filtering in proportions of 0.7 to 1.3% based on the weight of the slurry, said agents comprising generally an inorganic salt of aluminium, magnesium, calcium or zinc.  The composition of the present invention is compatible with a wide variety of wetting agents.