baber/WOPTO huggingface dataset:
Patent GB-830775-A (GB)
Title: Improvements in forming dies and alloy therefor
IPC: C22C38/58
Filed: 1958-10-24
Abstract: An air hardening alloy suitable for use as a forming die has a composition, in per cent by weight, within the following range: .C.0.5-0.6 .Mn.1.5-2.5 .Si.1.25-2.5 .Cr.3.0-4.0 .W.0.75-1.5 .Ni.1.0-2.0 .V.0.75-1.5 .Fe.the balance  Die stock is formed at a temperature of 2050-2100 DEG F., annealed at about 1475 DEG F. being held at that temperature for about one hour, cooled to about 1275 DEG F. and held at that temperature for about four hours, cooled to room temperature, reheated to about 1275 DEG F. and held at that temperature for about six hours and cooled to room temperature.
Patent GB-975030-A (GB)
Title: Reinforced concrete piles
IPC: E02D5/44
Filed: 1962-09-06
Abstract: 975,030. Concrete piles. D. P. DAIN. Sept. 6, 1962, No. 34113/62. Heading E1H. A process of forming an in situ reinforced concrete pile, comprises driving a concrete peg c, with an upstanding cage of steel reinforcement e for the pile anchored to it, into firm soil by means of a steel tube casing a, in the lower end of which concrete CN is first introduced to form a seal against water and soil, producing a bulb footing bf at the foot of the pile from a quantity of concrete poured down a tremie tube b inserted inside the reinforcement from the top of the casing, the casing being withdrawn a little and then used to hammer the concrete to form the bulb footing, and completing the pile shaft by pouring further successive quantities of concrete into the steel casing through the tremie tube, each successive quantity of concrete being compacted, and the casing together with the tremie tube being gradually withdrawn as the pile formation proceeds. The concrete may be compacted by a vibrator or the tremie tube. Hydraulic or pneumatic jacks may be used to drive or withdraw the tremie tube.
Patent GB-309828-A (GB)
Title: Improvements relating to ladies' knicker garments
IPC: A41B9/04
Filed: 1928-11-21
Abstract: 309,828. Moore, F., and Allard, M. R. Nov. 21, 1928. Knickers.-Ladies' knickers are made with an elastic waistband but no shirring occurs for a certain distance at each side of the centre of the front and back. These portions are plain, as indicated at 6. The hip portions 7 may also have plain portions. At the crotch is a gusset portion 4, which is of rhomboidal shape and extends substantially halfway along the leg. The leg portions may have elastic inserts at 8, be partly plain as at 9, and be secured by buttons 11. The elastic in the waistband may be omitted at the plain portions.
Patent GB-1483511-A (GB)
Title: Loading devices for fire-arms
IPC: F41A9/85
Filed: 1974-08-05
Abstract: 1483511 Caseless cartridges; chargers for multi-barrel weapons magazine INDUSTRIEWERKE KARLSRUHE AUGSBURG AG 5 Aug 1974 [7 Aug 1973] 34361/74 Headings F3A and F3C A magazine for a firearm has a body 1, Figs. 1 and 2, with stepped bores 1a therein each of which can receive a stepped cartridge base 3. Each of the latter has a projection 3a for both receiving a propellant charge 4 and serving as a seal for a respective cartridge chamber 6, Fig. 3; each base also, has a primer recess 3b and a detonating channel 3c. Projectiles 5 are positioned in the cartridge chambers 6 in readiness to be propelled, through  barrels 7, 7a and 7b. The chambers 6 are each provided with a shoulder 6a for abutment by a charge 4.
Patent GB-478851-A (GB)
Title: Process for the manufacture of hydrochloric acid from calcium chloride
IPC: C01B7/03
Filed: 1936-12-15
Abstract: Hydrochloric acid is obtained in a cyclic process in which calcium chloride is reacted with aluminium sulphate to produce aluminium chloride, the aluminium chloride is converted by hydrolysis into hydrochloric acid and aluminium hydroxide and finally, the calcium sulphate and aluminium hydroxide obtained from the above steps are reacted in the presence of water with carbon dioxide to regenerate a solution of aluminium sulphate. Preferably, the calcium sulphate is removed by decantation or filtration before carrying out the second step.  In distilling the aluminium chloride solution to drive off the hydrochloric acid, the solution is maintained in continuous movement so that the aluminium hydroxide will be produced as an even powder. Preferably, the conditions are such that a saturated solution of aluminium chloride is produced in the first stage.
Patent GB-946527-A (GB)
Title: Improvements in and relating to cathode ray tubes
Inventor: BONYE GORDON RONALD
IPC: H01J29/80
Filed: 1962-09-07
Abstract: 946,527. Cathode-ray tubes. SYLVANIA. THORN COLOUR TELEVISION LABORATORIES Ltd. Sept. 7, 1962, No. 34427/62. Heading H1D. In a plural - beam oathode-ray tube with electrostatic deflection and post - deflection acceleration systems further electrodes are provided for rendering the acceleration field more symmetrical with respect to each beam. In a double-beam tube with deflecting system 7, 9 for beam 5 and deflecting system 8, 10 for beam 6, auxiliary electrodes 12, 12<SP>1</SP> modify the broken-line equipotential of the acceleration field in the manner shown. The electrodes 12, 12<SP>1</SP> extend from a plane passing through the forward plates 9, 10 to beyond these plates in the direction of the screen. The electrodes 12, 12<SP>1</SP> may be subdivided.
Patent GB-864390-A (GB)
Title: Castors
IPC: B60B33/08
Filed: 1958-10-28
Abstract: 864,390. Castors. KESTERTON, H. M. Jan. 13, 1960 [Oct. 28, 1958], No. 34446/58. Class. 52(1) A castor has a cylindrical bush 7 which accommodates a fixing stem 5 in a blind bore and has a roller 9 with a part-spherical surface rotatable about it and retained thereon by a spring clip 10. In a modification Fig. 3 the roller 9 has secured to it a pin 11 rotatable in a concentric blind bore in the bnsh and retained therein by a spring clip 12. According to the Provisional Specification the roller and bush may be held in position on the stem by a cover instead of or in addition to the spring clips, an edge of the cover engaging a groove in the stem.
Patent GB-1129539-A (GB)
Title: Lens manufacture
IPC: G02B3/04
Filed: 1966-08-01
Abstract: 1,129,539. Reshaping glass sheets. RADIO CORPORATION OF AMERICA. 1 Aug., 1966 [30 Aug., 1965], No. 34491/66. Heading C1M. [Also in Division G2] A complex one-piece optical lens is formed by sagging a transparent thermoplastic sheet 1 of uniform thickness on to an optical surface 7 of a mould 3 having a desired configuration to provide the upper surface of the sheet 1 with the same configuration, flattening by grinding the lower surface of the sheet, and subsequently sagging the sheet on to an optical surface 13 of a second mould 11 having a second desired configuration to add to the upper surface of the sheet 1 the configuration of the second mould, and finally, flattening by grinding the lower surface of the sheet 1 again.
Patent GB-1392193-A (GB)
Title: Cultivating machine
IPC: A01B11/00
Filed: 1971-07-24
Abstract: 1392193 Oscillattng-tine cultivator ROTARY HOES Ltd 24 July 1972 [24 July 1971] 34846/71 Heading A1B Tines 25 and 26 are oscillated in longitudinal vertical planes about pivot pins 27 carried by fixed plates 20 and 21, the replaceable wear plate 30 of each tine 25 and 26 always being forward of the pivot pins 27. The inner (and outer) tines 26 (and 25) are oscillated by connecting rods 32 pivoted eccentrically to plates 33 (and 36) carried on shafts 34 (and 37). Power is transmitted to the shafts 34 and 37 by gearing in a housing 13 provided with input shaft 14 coupled to a tractor powertake-off. Alternatively, a hydraulic motor drives transmission means connected to the tines. The cultivator is secured at 11 to the lower links, and by an upstanding mast (Fig. 2, not shown) to the upper link, of a tractor three-point linkage (not shown). The lower surfaces of the plates 20 and 21 contact the ground to prevent oscillations being transmitted to the cultivator frame. In another embodiment, the gear box 13 and rotatable plates 33 are set back rearwardly in the cultivator frame, so that the tines 20 and 21 are nearer to the points of attachment to the tractor. The tine 26 at one side of the cultivator is in phase with the tine 25 at the opposite side. A ground engaging depth skid or wheel is carried by a vertical post having holes by one of which it is secured in a bracket. Further tines may be carried by a frame extension of the cultivator.
Patent GB-1189009-A (GB)
Title: Filament Protection for Hot Wire Detectors
IPC: G01N27/18
Filed: 1967-07-28
Abstract: 1,189,009. Thermal conductivity detector bridge. PERKIN-ELMER CORP. July 28, 1967 [July 29, 1966], No. 34873/67. Heading G1N. [Also in Division G3] The effective resistance between the supply terminals 60, 56, Fig. 3, of a bridge comprising p.t.c. thermal conductivity detector elements 40, 42, and reference elements 44, 46, is measured by being connected as one arm of a further bridge having arms 48, 50, 52 the output at 107 of which reduces the current supply from 54 to the bridges when the said effective resistance exceeds a predetermined value. The object is to prevent burnout of the detector elements if their temperature should rise excessively, such a rise causing an increase in the effective resistance of the detector bridge, which causes the collector potential of a transistor 102 to fall and to apply a negative voltage at 107, to a switch circuit 70. This circuit includes a silicon controlled switch 116 which is operated by the said negative voltage to supply a negative pulse via a diode 146 to a control circuit 68 of the current supply circuit 54 of the bridges. A further protection circuit includes transistors 152, 154 which respectively conduct to give varying negative output voltages at their collectors 170, 172 as the opposite ends 32, 34 of the first bridge output diagonal vary in potential in relation to a reference potential 33 defined by a third pair of bridge arms 84, 86. The collecter voltages 170, 172 are applied to the control circuit 68 via diodes 148, 150, to continuously adjust the bridges' supply current to prevent an excessive resistance ratio arising between the detector elements and the reference elements, whether or not the effective resistance of the entire detector bridge changes. The negative voltages applied to the diodes 146, 148, 150 reduce the current in transistor 144, thus increasing the current in transistor 142, and causing a fixed bias transistor 128, in the bridge supply circuit 54, to supply less base current to transistors 124, 126. The last pair of transistors supplies the bridge current, which is normally maintained constant by a transistor and Zener diode arrangement 140, and the Zener diode 130.
Patent GB-307141-A (GB)
Title: Improvements in detergent, cleansing and polishing compositions
IPC: C11D1/12
Filed: 1927-12-23
Abstract: 307,141. British Dyestuffs Corporation. Ltd., Baddiley, J., and Chapman, E. Dec. 23, 1927. Right to Patent relin. quished. Cleansing-compositions for tiles, walls, stoneware, glass, metals, and painted and polished surfaces consist of aqueous solutions or pastes of the complex sulphonic acids, or their salts, referred to in Specification 284,367, and of nitrecake or other inorganic acid-cleansing agent. For example, 6 1b. of nitre-cake and 1 lb. of the sodium salts of the sulphonic acids prepared according to Specification 274,611 are mixed, and 1-1¢ lb. of the mixture is dissolved in 10 lb. of water. According to the Provisional Specification any acid cleansing agent may be mixed with the sulphonic acid or its salt.
Patent GB-465833-A (GB)
Title: Improvements in rotary apparatus for heating or cooling liquids or semi-liquids
IPC: A01J9/04
Filed: 1935-12-17
Abstract: 465,833. Cooling liquids. MUNDAY, R. L. Dec. 17, 1935, No. 34943. [Class 29] A heat-exchanger for heating or cooling cream, chocolate, or similar semi-plastic materials, or milk and beer, consists of two or more rotors A, A<1> each with helical grooves and projections of opposite hands, the projecting portions of each rotor engaging the grooves of the other rotor, and means for rotating the rotors in unison so that material passes between them, together with a double casing D fitting over the rotors, the cavity F between the casings containing brine or other cooling or heating medium, which also passes through the rotors. Electric heaters may heat or replace the heating medium. Material is fed in at the top and withdrawn at the bottom. The rotors are driven in unison by gear wheels H, H<1> on hollow spindles B, B<1> with holes K by which brine enters the rotors and passes circuitously through apertures J therein to outlet holes K<1> in the spindles whence it passes into the casing at M and is finally withdrawn at G. The casing may be taken apart for cleaning and may be made of metal known under the Registered Trade Mark " Monel."
Patent GB-844651-A (GB)
Title: Improvements in or relating to methods and apparatus for binding books
IPC: B42C5/02
Filed: 1957-11-08
Abstract: 844,651. Bookbinding. KITCAT, L. G. Dec. 11, 1958 [Nov. 8, 1957], No. 34969/57. Class 16. A method of binding books wherein a strip 10, Fig. 1, of lining material is gummed to the spine 13 and to the outer sheets 12, the spine is rounded and spread as shown to form shoulders 14, a casing comprising two boards 15, Fig. 2, and a back lining 16 joined by a covering material 17 is then placed over the book which has adhesive previously applied to the outer sheets, and the book and casing are placed between two plates 19, Fig. 3, of a press, is characterised in that during the pressing operation a roller 20 is rolled around the outside of the back lining 16 under pressure. The edges of the press plates 19 are chamfered at 21 so that the effect of the rolling is to force the shoulders 14 and joints of the book over the chamfered portions 21 and beyond the right angle position. The shoulders 14 are thus stuck to the exposed parts of the portions 18, Fig. 2, of the lining 17, and when the rolling is completed the shoulders 14 spring back to the right angle position to provide "English Joints". If a grooved joint is required, the portions 18 are wider and ribbed elements are pressed into the joints during the pressing operations of the roller 20. The roller 20 may be constrained to roll in a path corresponding to the curvature of the book spine, and it may be adjustable towards and away from the spine. In a modification, Fig. 7, the roller 20 is replaced by a press tool 46, having a rounded recess 47, which is pressed on the book spine. Resilient strips may be arranged within the recess 47. One press plate 19 has a bracket 29 for clamping to a bench 30, and a bracket 36 provided with a threaded hole to receive a lead screw 38. An element 42 through which the screw 38 passes freely has pivoted thereto at 43 two opposed arms 44 of a forked hand lever 45 which carries the press tool 46. The screw 38 is rotated by a lever 39 to adjust the tool 46 over the book, and pressure is applied to the book spine by the hand lever 45. The press plates 19 are relatively movable by a screw 31. The press plates in both forms of apparatus may be heated electrically, and both forms may be embodied in machines for automatic operation.
Patent GB-639326-A (GB)
Title: An extensible tripod
IPC: F16M11/16
Filed: 1946-11-26
Abstract: 639,326. Tripod stands. COUTANT, A. C., and MATHOT, J. Nov. 26, 1946, No. 35073. Convention date, Dec. 28, 1945. [Class 52 (iii)] A collapsable tripod comprises a tablet or head 21 supported on three telescopic legs each having an upper member comprising two convergent rods or tubes 9 fixed at their lower converging ends to a cross bar 10 through which slides a lower rod or tube 1 carrying at its upper end transverse clamping bars 3, 4 fitted with laterally displaceable jaws 5, 6. Fig. 4, so that when the legs are disengaged from the tablet or head 21 each may be telescoped by inward displacement of the tubes 9, which are preferably resilient. Detachable engagement of each leg is effected by longitudinal displacement of a pintle 14 grooved to co-operate with key-hole slots formed in lugs 13 on the tubes 9.
Patent GB-522163-A (GB)
Title: An improved process and apparatus for production of stereoscopic cinematograph films
IPC: G03B35/00
Filed: 1938-12-02
Abstract: 522,163. Stereoscopic kinematograph pictures. HATTANGDI, P. V. Dec. 2, 1938, No. 35143. Convention date, Sept. 2. [Class 97 (i)] Negative stereographic images are produced on a double-width film which is fed vertically, one frame at a time, through a camera having two horizontally spaced lenses, the film, after passing through one gate, 3a, Fig. 1, being looped to pass through the other gate 5a, and the gate and shutter apertures being so disposed that the partial images are formed in spaced relation in juxtaposed vertical rows. For centring the images, the camera lenses 7, 8, Fig. 4, may be adjusted by a wheel 9, or by tilting. The exposures are made through a rotating shutter 10, or a pair of coupled shutters, one for each lens ; and provision may be made in the camera for producing marginal marks on the film by exposure to light through prisms 16 and apertures in the shutter 10 and film gates. The marginal marks are printed with the pictures on to the positive film, and are used in conjunction with photo-electric cells on the projector to give a warning signal if either the right or left hand pictures are not in their normal positions at their respective gates. The positive may be of double-width, printed or reversed from the negative film, or it may be a single width film, Fig. 7, printed with the pictures in alternating sequence. The printed marks are shown at 32. This single width positive may have the left and right hand pictures in spaced relation along the film, and may have only one pair of feed perforations for every two frames, in which case the intermittent feed mechanisms at the two gates of the projector or their teeth are staggered by one picture frame. This arrangement of feed perforations may also be used for the doublewidth positive film, Reference is made to a similar camera for producing the negative images in alternating sequence on a single-width film.
Patent GB-1369789-A (GB)
Title: Reduction of noise from piling rigs and the like
IPC: E02D13/00
Filed: 1971-07-27
Abstract: 1369789 Pile driving H C SHELBOURNE and A E J SELFE 26 Oct 1971 [17 Nov 1970 27 July 1971] 54551/70 and 35271/71 Heading E1H A transportable percussive or vibratory pile driving or extraction rig is mounted in an enclosing sound deadening casing. The casing which includes an aperture 12 for the passage of a control cable 15 for raising the driving mechanism and access door 11 is formed of sheets 7-7c, each sheet comprising a laminate of three mild steel layers bonded to interposed soft P.V.C. layers. The rig which includes upright frame bars 2 for guiding a drop hammer 13 has the casing sheets 7-7c secured to it either by non-metallic means or by bolts provided with insulating P.V.C. or nylon bushes. A mild steel helmet 16, which is also mounted in the guide frame bars 2 and is provided with a wood or plastics dolly 16b against which the hammer 13 strikes, holds the pile 17 to be driven in position in conjunction with a removable apertured base plate (not shown) through which the pile passes. For transportation the rig may be detached into two or more parts e.g. along line 20, further intermediate parts (not shown) being insertable between the upper and lower parts to increase the height of the rig.
Patent GB-1269834-A (GB)
Title: Oxidation resistant iron base alloy
Inventor: CAULE ELMER JOSEPH
IPC: C23C8/14
Filed: 1969-07-14
Abstract: 1,269,834. Iron base alloy. OLIN CORP. July 14, 1969 [Aug. 7, 1968], No.35350/69. Heading C7A. An alloy comprising the balance, apart from 0-0À2% in total of other elements, being Fe, is exposed to an oxidizing atmosphere at 300-1000‹ C. for 5 minutes to 100 hours to produce an adherent substantially colourless oxide film thereon and thus render it oxidation and tarnish resistant.
Patent GB-646179-A (GB)
Title: Electric furnace for the treatment of glass
IPC: C03B37/092
Filed: 1947-12-31
Abstract: 646,179. Electrode furnaces. SOC. ANON. VETRERIA ITALIANA BALZARETTI MODIGLIANI. Dec. 31, 1947, No. 35366. Convention date, May 1, 1939. [Class 39(iii)] In an electric glass smelting furnace wherein the current traverses the molten mass, the temperature of the mass is increased in a zone between co-operating electrodes by adjustable means for reducing the cross sectional area of the molten mass in the said zone. The molten bath may be divided by a vertically adjustable wall 2b to restrict the flow of current to a narrow passage 6b at the bottom of the furnace. Glass rods 11 may be fed through the top of the furnace on to the wall 2b so that, on fusing, the glass will flow down both sides of the wall and provide a second current circuit. The electrodes 3b, 4b are preferably of steel with an internal cooling system. Orifices for drawing glass threads may be disposed below the narrow passage 6b. The Specification as open to inspection under Sect. 91 comprises also two tanks of molten material interconnected by a fluid glass film covering the surface of an elevated step between the tanks. This subject-matter does not appear in the Specification as accepted.
Patent GB-828688-A (GB)
Title: Improvements in or relating to controlled transistor amplifiers
IPC: H03F3/18
Filed: 1955-12-09
Abstract: 828,688. Electrophonic musical instruments. PHILIPS ELECTRICAL INDUSTRIES Ltd. Dec. 9, 1955 [Dec. 13, 1954], No. 35401/55. Class 88 (2). [Also in Groups XV, XL (b) and XL (c)] In an instrument employing transistors, a discharge tube 4, Fig. 9, is arranged to illuminate the transistors and prevent them from oscillating. Upon a player interposing his finger between the light source and one of the transistors the transistor commences to oscillate and generate a tone (see Group XL (c)).
Patent GB-1320927-A (GB)
Title: Devices for regulating the level of vehicle bodies
IPC: B60G17/033
Filed: 1970-07-22
Abstract: 1320927 Controlling suspension height ROBERT BOSCH GmbH 22 July 1970 [22 July 1969] 35403/70 Heading B7D Level regulating means associated with a fluid pressure spring at one axle of a vehicle is responsive to the height of the vehicle body at that axle compared with the height at the other axle. A variable-height spring 16 associated with the rear axle 5 of the vehicle is connected to a pressure supply device 14 including a compressor, pressure regulator and reservoir and a levelling valve 13 which is connected to the rear axle 5 through a lever 15 and torsion bar 18 and to the front axle 4 through a lever 6, torsion bar 8 and an hydraulic transmitting means 12 comprising pistons 10, 11 in a liquidfilled tube 9. The levelling valve 13 responds only to unequal deflections of the axles 4, 5 so that when the load carried by the vehicle varies the rear suspension height is adjusted to correspond to that at the front and the vehicle remains level at a height which will usually be near the ideal height since changes in load normally affect the front suspension height only a limited extent. In a vehicle which carries its load at the front, variable-height suspension means at front axle may be sensitive to the body height at the rear axle. The hydraulic transmitting means 12 may be replaced by a mechanical rod system or cable. The position of the axles may be sensed by electric switches or inductive signalling devices connected to an electronic switch which controls regulation of level.