baber/WOPTO huggingface dataset:
Patent GB-285526-A (GB)
Title: Improvements in or connected with sheet metal boxes or cans
IPC: B21D51/16
Filed: 1926-10-13
Abstract: 285,526. Gee, L. F., and Adams, F. E. Oct. 13, 1926. Vacuum closures ; closures completed by outstanding packing rings. - Relates to sheet-metal boxes or cans provided with flanged covers fitting over seamless neck portions seamed to body parts having vertical seamed joints and consists in means for providing an airtight closure. Three forms are described, Fig. 1 showing an indiarubber or other packing ring 5 resting on a flange 1<x> above the seamed joint 4 and adapted to be engaged by a curled or beaded edge 8 at tre lower edge of the lid flange. In Fig. 2 the packing 5 is disposed in an annular corrugation 9 in the lid, and seats on the beaded upper edge 6 of the neck. Fig. 3 shows the lid flange and neck both provided with inclined intermediate portions 7<x>, 1<z>, respectively, between which an indiarubber or other ring 5 resting on the neck is adapted to be compressed when the lid is in position. In general, the lid is held in place solely by the pressure due to a vacuum created within the vessel, but in the form shown in Fig. 3 the lower parts of the lid flange and neck may be given a friction or mechanical fit. Specifications 2543/93, 9393/95 ; 23788/98, [Class 66 Hollowware], 24851/01; 26495/01, [Class 18, Boxes &c.], 28598/04, 209,510, 246,277, and 258,695 are referred to.
Patent GB-195412-A (GB)
Title: Improvements in or relating to flash-light photography
IPC: G03B15/04
Filed: 1922-06-23
Abstract: 195,412. Chasseraux, I:. June 23, 1922. Cameras combined with flash-lights; shutters. -Consists (1) in the combination with a camera shutter of a flash-lamp comprising a hinged tray containing the flash powder and a fixed tray for holding a lighted match or taper, and pneumatic actuating means for simultaneously operating the shutter and tipping the hinged tray to project the powder into the flame, and (2) in the provision of a case constructed to support the shutter and flash lamp when in use, and in which the apparatus and all accessories may be packed for transport. In the form shown, a camera B, shutter q, and flash lamp e, Fig. 2, are supported on a packing-case A, the shutter being adjustable on guides n, n<1>. The shutter comprises a flap q, Fig. 6, mounted on a spindle t and held normally upright by an elastic cord s. It is moved into the chain-dotted position to make the exposure by inflating an air-bag beneath a spring r which operates the cord s<1>. The lamp comprises a fixed tray c slotted at one end to receive a match or taper, and a tray a containing a charge of magnesium powder, and hinged at b so that it may be rotated by a spring h actuated by an airbag g to tip the charge into the fixed tray c. The air-bags operating the shutter and lamp are inflated simultaneously by compressing a rubber ball y<1> connected to the tubes j, j<1> through a reel of tubing y long enough to permit the operator to figure in the photograph.
Patent GB-906955-A (GB)
Title: Improvements in and relating to universal expansion pipe joints
Inventor: PIPER LESLIE HERBERT
IPC: F16L27/02
Filed: 1960-07-21
Abstract: 906,955. Expansion joints. ENGLISH ELECTRIC CO. Ltd. July 20, 1961 [July 21, 1960], No. 25502/60. Class 99 (1). In a universal expansion pipe joint, one of the two pipes to be joined is connected to an inner sleeve 3 on which an annular piston 2 is fitted and which is slidable in an outer sleeve 1, the annular area of the piston being equal to the cross-sectional area of the duct of the pipes, and the sleeve 1 at one side of the piston being in communication, e.g. by means of apertures 10 in the sleeve 3, with the interior of the pipes and thus exposed to pressure; the outer sleeve at the opposite end of the piston is exposed to ambient atmosphere. As shown, the sleeve 3 is slidable in a gland 4 having a part-spherical outer surface over which fits a part-spherical sleeve 5, to which the other pipe is connected. A gimbal ring 6 is disposed between the sleeves 1, 5 and articulated on pins, 7, 8 the pins 8 extending into open-ended slots 11 in the sleeve 1 to limit angular movement of the sleeve 5 in the plane of those pins.
Patent GB-1493741-A (GB)
Title: Determination of processing losses or gains in a continuous liquid process
IPC: G01F15/02
Filed: 1975-06-16
Abstract: 1493741 Measuring gain or loss from a liquid flow F E SULLIVAN 16 June 1975 [18 June 1974] 25629/75 Heading G1A [Also in Division G4]  An apparatus for this comprises means for measuring inflow and outflow, means 30, 31 for generating corresponding pulses, means 56, 57 for counting them, means 60, 61 actuated when a predetermined number of pulses has been counted from either inflow or outflow, whichever is the first, means 71 for counting the number of pulses from the other pulse generator thereafter until reaching the predetermined number, means 74 displaying information dependent on this difference count and means 64, 65 indicating whether it is a gain or loss and means for cyclically repeating the process. Vegetable oil fed through an inflow positive displacement meter with two rotors is used for making soap and, after refining, fed through such a meter measuring outflow. The meters each drive a slotted disc between a light source and sensor. A number of pulses are subtracted (added) in modulators 34, 35 to compensate for increased (decreased) volume due to increased (reduced) temperature. Selectors 36, 37 determine what fraction of the pulses are to be counted. Switch 40 can substitute a test generator for checking accuracy. The first pulse received by the general control logic circuit 45 acts to initiate successively circuits 46 and 47 and gate logic circuits 50, 51. The first of the gates 60, 61 to be activated actuates circuit 45, which sends a signal to turn on lamp 64 or 65 and sends a signal to device 70 initiating difference counter 71, which then counts pulses as they are counted by counter 56 or 57 until limit gate 60 or 61 notifies circuit 45. Counter 71 then activates store 72, which also receives a load signal on line 46, to feed de-coder driver 73 and display 74. Digital to analogue converter 75 counts as counter 71, but in a binary system. De-coder driver 77 converts to analogue for recorder 78. There may be 100 pulses per 1b of product flow and the predetermined number of the order of 10<SP>4</SP> pulses and the loss or gain displayed as %. The moisture compensator 53 functions sumilarly to the temperature compensator. Accuracy may be checked by passing the outflow through both the outflow and inflow meters.
Patent GB-169709-A (GB)
Title: Method of transmitting the position of a compass to indicating devices
Filed: 1920-07-07
Abstract: 169,709. Werkstõtten f³r Prõcisions- Mechanik und Optik C. Bamberg. Nov. 20, 1917, [Convention date]. Mariners' compasses.-Relates to apparatus for controlling secondary compasses 33 from a master compass, the transmitting switch 35 being operated by a motor 32 which rotates the compass box 29 in one direction or the other to maintain a definite relative position between the compass card and the box. Selenium cells 29, 31 and sources of light 26, 27 are mounted on the rotatable box 29 on opposite side of a semicircular compass card 25, the radial edges of which normally shut off the light from the cells. When the box 29 is. displaced, one or other of the cells 29, 31 is exposed to the light, and energizes one of two circuits to cause the motor 32 to rotate the box 29 in the opposite direction until a line connecting the cells or the lights is again parallel to the radial edges of the card 25. The rotation of the motor 32 is transmitted by means of a commutator switch 35, to a second motor 34 which rotates the card 33. The special feature of the invention lies in the use of relays to control the motor 32, as shown in the Figure. Specification 147,215 is referred to.
Patent GB-640349-A (GB)
Title: Improvements in automatic lathes for thread cutting
IPC: B23B11/00
Filed: 1946-08-28
Abstract: 640,349. Cutting screw-threads. MANUFACTURE DE MACHINES DU HAUTRHIN SOC. ANON. Aug. 28, 1946, No. 25762. Convention date, Nov. 23, 1945. [Class 83 (iii)] The screw-cutting mechanism of an automatic lathe in which a principal cam-shaft 20 effects a series of operations has an auxiliary cam-shaft 11 driven through an interchangeable gear train from the work spindle to rotate cams 26, 27 imparting a cycle of movement to a chaser 33, while the principal cam-shaft rotates a cam 51 to determine the depth of cut on each cutting stroke of the chaser and has means to interrupt the drive of the auxiliary cam-shaft when the desired depth of thread has been cut. The interchangeable gear train drives a worm 8 in mesh with a worm-wheel 9 which may be connected with the shaft 11 by a spring-loaded clutch 12 controlled through a lever 14 by a dogcarrying member 18 secured to the shaft 20. When the clutch is disengaged, the lever 14 is locked by a second lever 22 also under the control of the member 18. The chaser is mounted on a compound carriage and is reciprocated longitudinally by a link 46 actuated by the cam 27, while transverse movement is imparted to the chaser by a profile cam 41 rotated by a link 37 and a connecting-rod 38 driven from the cam 26 so that the path of movement indicated by the arrows in Fig. 2 is obtained. Depth of cutfeed is controlled by the cam 51 which advances the compound carriage in a direction transverse to the axis of the work. The cycle of operations is started by a dog on the member 18 freeing the lever 14 so that the clutch 12 is engaged by its spring, and is brought to an end by a second dog re-locking the lever. The cam 27 may be provided with two grooves to allow left- or right-hand threads to be cut.
Patent GB-663681-A (GB)
Title: Improvements in or relating to electric accumulator connections
IPC: H01R11/28
Filed: 1949-10-07
Abstract: 663,681. Binding-posts. SOC. ANON. A. CITROEN. Oct. 7, 1949 [Oct. 22, 1948], No. 25791/49. Class 38 (i). In a connector for a battery, the usual conical stud 1 has an angle head 2 formed integral therewith in the bent portion of which is bored a socket 3 in which the bared end 4 of a cable 5 is soldered, the joint being surrounded by a sleeve 6 of acid-resisting insulating material. A groove 8 partly separates the stud and head so that for an emergency repair the head may be sawn off along the groove and a conventional connector applied to the stud.
Patent GB-264242-A (GB)
Title: Improvements in or relating to cigarette making machinery
IPC: A24C5/22
Filed: 1925-10-15
Abstract: 264,242. Molins, W. E. Oct. 15,1925. Cigarette-making machines.-In a continuousrod machine, the upstanding edge of the paper wrapper, after being pasted and bent over by a slotted folder on to the adjacent edge of the paper, is subjected to the action of one or more brushes or the like rotated at a high speed in a direction transverse to the rod, so as to spread the paste evenly between the overlapping portions of paper and to remove particles of paste which may be pressed therefrom. A set of three brushes 9 may be mounted on a spindle 10 carried by an arm 7, which is held by gravity in the position shown with stops 13, 14 in contact, or may be held in a raised position by a catch 15. The brushes 9 enter slots 12, which are shaped to compress the brushes where they contact with the cigarette rod. The spindle of the brushes may be parallel or inclined to the rod, and may also carry a fan in connection with a tube for blowing tobacco dust from the cigarette rod prior to the folding of the paper.
Patent GB-1425948-A (GB)
Title: Thermoplastic acrylic sheet
IPC: B29D/
Filed: 1972-06-02
Abstract: 1425948 Polymer casting process IMPERIAL CHEMICAL INDUSTRIES Ltd 11 May 1973 [2 June 1972] 25867/72 Heading C3P Thermoplastic polymer sheets are obtained by casting and polymerizing an alkyl methacrylate (containing 1 to 4 carbon atoms in the alkyl group, and optionally mixed with up to 20 wt. per cent of other monomers) in the presence of 0À02-3%, based on the weightof the sheet, of a cross-linking agent, the conditions being such that in the absence of the crosslinking agent a polymer having a reduced viscosity of 1À5-4À0 would be obtained. The product comprises 10-95 wt. per cent of solvent-extractable polymer with a reduced viscosity of not more than 4À0, the remainder being insoluble and cross-linked, and has an elongation-at-break of at least 600%. Preferably the casting composition also contains a pre-formed polymer; it may be prepared by adding the cross-linking agent and fresh initiator to a polymer-in-monomer syrup obtained by a preliminary partial polymerization of the monomer. Chain transfer agents may be-added in one or both of the polymerization stages to control the viscosity of the product. In the examples the monomer is methyl methacrylate and the cross-linking agent is glycol dimethacrylate, triallyl cyanurate, triallyl phosphate, allyl methacrylate or diallyl phthalate.
Patent GB-809288-A (GB)
Title: Improvements in or relating to devices for grinding substantially flat workpieces, for example the slideways of machine tools
IPC: B24B19/26
Filed: 1955-09-09
Abstract: 809,288. Machine-tool details. GESELLSCHAFT DER LUDW. VON ROLL'SCHEN EISENWERKE A.G. Sept. 9, 1955 [Sept. 11, 1954], No. 25905/55. Drawings to Specification. Class 83 (3). [Also in Groups XXIII and XXXVII] A bed of a machine-tool, e.g. a lathe or a milling or planing-machine, has slideways ground convex while the bed is not loaded, so that they will be flat when the bed is loaded in use.
Patent GB-362487-A (GB)
Title: Improved process and apparatus for drying crops, cut grasses or other fibrous or flaked materials
IPC: F26B17/14
Filed: 1930-09-01
Abstract: 362,487. Drying grass &c. HARDING, L., Newton House, Chapel Road, Alderley Edge, near Manchester, and DEBENHAM, E. R., 15, St. James's Place, St. James's, London. Sept. 1, 1930, No. 26024. Addition to 334,496, [Class 34 (ii), Drying systems &c.]. [Class 34 (ii).] The oscillating baffles in the drying chamber of the parent Specification are replaced by apertured annular plates 5, Fig. 3, mounted upon bolts 7 secured to beams 8 supported at the ends by volute springs 29, Fig. 9, in bearings 30 and carrying cross-bars 31, Fig. 7, which support the shaft of an unbalanced pulley 11, the rotation of which vibrates the beams and the plates. The grass &c. to be dried is fed by a screw into a passage 13 in a hot gas supply duct 3, being carried by the gas against the cover 24 of the drying chamber and distributed over the uppermost plate 5. After falling through the apertures in the plates, the dried material is carried by the exhaust gases through a duct 18, Fig. 4, to a collapsable separator having a pervious jacket portion 34 for the escape of the separated gases and a hessian filtering partition 22 through which a regulable part of the gases can pass into a return duct 21 connected to the drying chamber. Two drying chambers may be supported side by side on a wheeled frame, the material to be dried being fed to each by a common hopper and feed screw and discharged to independent separators.
Patent GB-906823-A (GB)
Title: Coating cables
Inventor: WHITE FRANCIS THOMAS
IPC: C08K5/14
Filed: 1959-07-29
Abstract: Cables or wire are given a single coating of a composition comprising polyethylene and a cross-linking agent therefor, and the composition is cured, e.g. by passing through steam or hot air.  Exemplary coating compositions contain polyethylene, dicumyl peroxide, and carbon black or an antioxidant.  Specification 789,116 is referred to.
Patent GB-1508505-A (GB)
Title: Method and circuit for operating an electrical machine
IPC: H02H7/085
Filed: 1975-06-19
Abstract: 1508505 Automatic control systems BROWN BOVERI & CIE AG 19 June 1975 [1 July 1974] 26098/75 Heading G3R A temperature-limiting arrangement for an electric motor is based on the principle of limiting the current in accordance with a simulated rotor temperature. The rotor current is sensed at 2, squared at 3 and integrated at 4 to provide #i<SP>2</SP>dt as an indicator of the heat input to the rotor. A resistive device 5, simulating the heat loss to the surroundings, then converts the #i<SP>2</SP>dt value to a presumed rotor temperature output 58. This is compared at 8 with a set 'safe' temperature 7 and, if the two temperature values become equal, a fixedcurrent determining subsystem 9,10 over-rides the normal (speed) control 11. To correct for variations in ambient temperature, a measured temperature value 64 - from a transducer associated with the motor casing - may modify the action of the simulator 4, 5.
Patent GB-1314967-A (GB)
Title: Heat exchanger
IPC: F28D7/06
Filed: 1971-04-19
Abstract: 1314967 Tubular heat exchangers INGERSOLL-RAND CO 19 April 1971 [5 Aug 1970] 26109/71 Heading F4S In a heat exchanger 10 comprising a nest 32 of finned coolant tubes 34 removably disposed in a housing 12, a cover member 42 is provided with a plurality of arcuate recesses 44, (46, Fig. 3) which serve to redirect the fluid to be cooled, e.g. gas from a compressor, tending to by-pass the tube nest back into the nest. Concave recesses 48 are also provided in the side walls 16 of the housing for the same purpose. Fluid to be coolant enters the housing through inlet 28 and leaves, after passing over the coolant tubes, through outlet 30. The open ends of the U-tubes 2, 4 are sealed in a tube plate 52 which together with a header cover 54 is bolted to the housing. Partitions 56 subdivide the header into a series of chambers which serve to direct the coolant through the tube nest from an inlet 60 to outlet 62.
Patent GB-1317828-A (GB)
Title: Removing excess developer liquid from a surface
IPC: G03G15/11
Filed: 1970-05-29
Abstract: 1317828 Electro-photographic processes CANON K K 29 May 1970 [4 June 1969] 26122/70 Heading G2H Excess developer liquid is removed from an electrostatic latent image bearing surface by electrostatically charging the liquid and drawing off the excess from the surface. It is stated that the charging reduces the surface tension of the  liquid and depresses its surface which facilitates drawing off. As shown, a surface a is charged at 29, exposed at 30, developed at 23, 24, charged at 10 and dried at 31; the charging at 10 causing excess liquid to run off the surface a back into a reservoir 21. In Figs. 5, 6 (not shown) a corona discharge device (10) moves across an image bearing surface (11) to displace excess liquid to one edge of the surface where it is drawn off by a suction device (14) or by capillary action using a thin sheet (16).
Patent GB-470141-A (GB)
Title: Improvements in or relating to pedestal bearings for the axles of pit tubs and the like
IPC: B61F15/06
Filed: 1936-09-26
Abstract: 470,141. Vehicle axle-bearings. INGHAM & SONS, Ltd., J., and ODDIE, W. M. Sept. 26, 1936, No. 26141. [Class 12 (i)] A pedestal bearing for the axles of pit tubs and the like has an arcuate upper bearing surface 1 which rests upon the axle, and tangential side cheeks 2 which engage the axle alternately according to the direction of travel, longitudinal retention grooves 3 for lubricant being provided at the junction of the arcuate and tangential bearing surfaces, and a lubricant retaining pocket 4 in communication with the adjacent retention groove 3 being formed in each side cheek. The grooves 3 may be wavy or sinuous. Each cheek 2 may have a cut-out portion 5 opposite the pocket 4 in the other cheek through which lubricant may be supplied. The upper face of the pedestal has a grease reservoir 6 leading to the bearing surface through a central port 7. The side cheeks may be provided with an axle-retaining bolt, or with a U-shaped axle strap 8.
Patent GB-444182-A (GB)
Title: Improvements in or relating to the manufacture of a hygroscopic material to be used for the adsorption and retention of moisture in soil
IPC: C05D3/00
Filed: 1934-09-12
Abstract: A hygroscopic material, for use in the soil to retain moisture, is obtained by drying waste cellulose pulp from paper manufacture, shredding it and admixing the flocculent fibrous substance so produced with solid chemical hygroscopic substances, e.g. calcium chloride or commercial sodium chloride.  The product may be used alone or admixed with fertilizers or weed killing substances. Waste pulp from the manufacture of paper from esparto grass may be employed.ALSO:Waste cellulose pulp from paper manufacture is dried and shredded and the resulting flocculent fibrous substance is admixed with solid chemical hygroscopic substances, e.g. calcium chloride or commercial sodium chloride, and a weed-killing substance.
Patent GB-1525918-A (GB)
Title: Radiant energy detection system for the angular location of a light-radiating object
IPC: G02F1/055
Filed: 1977-06-22
Abstract: 1525918 Radiant energy direction finding THOMSON-CSF 22 June 1977 [25 June 1976] 26197/77 Heading H4D A system for the angular location of a lightradiating object 1 (visible or infra-red) focuses the radiation on to a photosensitive detector element 3 through a static mask device 6 having an electrical control arrangement 7, whereby a configuration with 1, 2 or 3 transparent quadrants and 3, 2 or 1 opaque quadrants is moved sequentially through four operating states by a II/2 rotation of the configuration around the optical axis Z, and a synchronously operated switching circuit 8 successively connects the output of detector element 3 to four reception channels which supply a divergence measuring circuit 13 producing bearing and elevation error signals for a display or tracking device 14. Mask device 6 is a PLZT ceramic strip 20 bearing a circuit supplied with D.C. voltages to give electrical fields causing the ceramic to exhibit transparent or bi-refringent properties, thereby causing rotation of the plane of polarization of incident light, the strip 20 being arranged between two polarizers 21, 22. Hence control of the applied voltages allows one or more quadrants to be rendered opaque or transparent. An initial locking- on or acquisition phase is possible by rendering all four quadrants transparent, Fig. 13 (not shown).
Patent GB-423349-A (GB)
Title: Schappe silk fabric
IPC: D01C3/02
Filed: 1934-09-13
Abstract: 423,349. Silk yarns and fabrics. STAHL, K., 58c, Hohenzollernkorso, Tempelhof, Berlin. Sept. 13, 1934, No. 26278. Convention date, Sept. 13, 1933. [Classes 120 (iii) and 142 (iv)] A silk fabric has warp and weft threads consisting of a plurality of raw twisted schappe silk threads which are boiled in the hank and subsequently twisted again. In addition to boiling, the threads may be bleached or dyed, the same or different colours, before the final twisting, which is preferably about 500 twists per metre.