baber/WOPTO huggingface dataset:
Patent GB-878381-A (GB)
Title: An improved process for polishing sheets of glass or similar materials
IPC: B24B7/24
Filed: 1958-01-13
Abstract: 878,381. Polishing glass. COMPAGNIE DE SAINT-GOBAIN. Jan. 13, 1958 [Jan. 15, 1957], No. 1222/58. Class 60. A process for polishing a sheet of glass or similar material comprises applying the polisher to the glass at a pressure of at least 25 kgm. per square decimetre and feeding a liquid containing abrasive material to the rubbing surface at a rate sufficient to ensure the removal of the heat developed by friction so as to prevent fracture of the glass by overheating. The apparatus for carrying out the process may consist of rectangular plates extending substantially the width of the glass and arranged one above and one below the glass to polish both surfaces simultaneously, further pairs of plates being arranged in series in the direction of travel of the glass which is continuously fed between the plates and may be in ribbon or strip form. The plates may be given a circular translatory motion, such as described in Specification 756,222, and are faced with felt which is channelled for the passage of the abrasive liquid consisting of an aqueous suspension of rouge of a density of 1À05 to 1À25. With the pressure of the plates on the glass at 25 kgm. per square decimetre, the flow of liquid required is between 10 to 30 litres per hour per square decimetre of rubbing surface, at 45. kgm per square decimetre, 15 to 60 litres per hour, and at 70 kgms. per square decimetre, 25 to 90 litres per hour. Known processes are referred to using polishes covered with natural or artificial rubber and prossures of 15 kgms. per square decimetre.
Patent GB-816741-A (GB)
Title: Improvements in or relating to the construction of concrete rafts, roads, aircraft runways and the like
Inventor: FOULGER FRANK
IPC: F16D69/02
Filed: 1957-01-12
Abstract: 816,741. Road &c. foundations. BRITISH CELLOPHANE Ltd. Dec. 17, 1957 [Jan. 12, 1957], No. 1265/57. Class 107 The internal stresses arising in concrete rafts and roads, caused by friction on relative movement between the concrete and its foundation when the concrete sets or by temperature changes, are minimized by laying the concrete on two or more sheets of polymeric material, between which the coefficient of friction is low, which are first laid on the foundation. The two sheets may take the form of a large, flattened tube or, for example, polyethylene, polytetrafluorethylene or polyvinyl chloride, a slip agent such as 0.025 to 0.075 per cent of octadecenamide being incorporated when polyethylene is employed.
Patent GB-1095215-A (GB)
Title: Method and apparatus for forming ice cream and like materials and the product thereof
IPC: A23G9/28
Filed: 1965-01-12
Abstract: 1,095,215. Ice cream. NATIONAL DAIRY PRODUCTS CORPORATION. Jan. 12, 1965 [Jan, 13, 1964], No. 1325/65. Heading A2B. [Also in Division B5] A block of ice cream any slice of which comprises layers which each contain at least two differently flavoured or coloured ice creams is made in apparatus which includes two adjacent chambers to which the differing ice creams are fed and from which the ice creams pass to a dispensing unit vit a series of vertical tubes 66, 68 arranged in columns and rows of which any two adjacent tubes contain differing ice creams. A horizontally apertured plate 92 extends across the bottom of the tubes so that relative movement between the tubes and the apertured plate as the ice cream is being dispensed results in the block having a checker board pattern of different ice creams. The pattern can be varied by varying the frequency of relative reciprocation.
Patent GB-209944-A (GB)
Title: Improvements in or relating to inner air tubes for inflated tyres
IPC: B60C5/08
Filed: 1923-01-16
Abstract: 209,944. Killen, E. B. Jan. 16, 1923. Air tubes.-An air tube 7 is formed with a base enlargement 2 which is reinforced with inextensible cord or woven fabric and is adapted to be clamped between the tyre beads 3, 4 when the detachable rimflange 6 is assembled. In the construction shown in Fig. 1, the fabric reinforcement consists of inner and outer strips 9, 10, the strip 9 being extended above the height of the rim flanges. In the modification shown in Fig. 4, the inextensible reinforcement of the rib 2 is formed by a helical wrapping 11 of cord or woven fabric, the windings 'being in contact (or overlapping) at the base portion of the tube. Along the side walls and tread portion, the successive windings are spaced apart to allow the necessary extensibility at these parts. The textile material used is preferably of open or wide mesh, and the walls of the tube may be thicker than usual. Specification 209,123 is referred to.
Patent GB-1006738-A (GB)
Title: Improvements in or relating to lifts
IPC: B66D5/00
Filed: 1964-01-13
Abstract: 1,006,738. Preventing overspeeding of lift cages; hoists. TORNBORG & LUNDBERG A.B. Jan. 13, 1964 [Jan. 15, 1963], No. 1442/64. Headings B8H and B8L. A lift cage 3 is movable up and down a mast 1 by hoisting gear 9 and ropes 8, 10 which are secured to and wound in opposite directions on a rope drum 11 rotatably mounted on the cage 3, the rope 8 passing over pulleys 6, 7 on a crosshead 5 to the hoisting gear 9 and the rope 10 being secured to the crosshead 5. A device for preventing overspeeding of the cage is mounted on the cage and adapted to brake the drum 11 when the cage reaches a predetermined speed due to breakage of one of the ropes 8, 10. As shown in Fig. 3, a brake drum 24 is secured to the drum 11 and is acted on by a brake band 23 connected to arms 21, 22 on an arm 19 which is pivoted on a shaft 18. When the speed of rotation of the drums 11, 24 reaches a predetermined value, pawls 25, 26 which are pivotally mounted within the drum 24 rotate against the action of compression springs 29 and engage teeth 15 on a wheel 16, which is freely rotatable on the shaft 12 supporting the drums 11, 24, thereby rotating the wheel 16 together with a cam 17 secured thereto. Rotation of the cam 17, which is engaged by a roller 20 on the arm 19, rotates the arm 19 on the shaft 18 and thereby applies the brake. In a modification, Fig. 5, the cam 17 is replaced by pins 41, 42 which are secured to the toothed wheel 16 and which, on rotation of the wheel 16, engage an arcuate head 40 secured to link 35 of toggle linkage 34, 35, extending between pivoted arms 32, 33 which are provided with brake shoes 30. The arms 32, 33 are moved towards each other by a spring 38 to engage the brake shoes 30 with the brake drum when the wheel 16 is rotated and breaks the toggle linkage 34, 35.
Patent GB-450411-A (GB)
Title: Improvements in or relating to waste and overflow devices for liquid containers, such as baths, wash-basins, bidets and the like
IPC: E03C1/232
Filed: 1935-01-16
Abstract: 450,411. Waste and overflow valves. TENNANT, W. J., 111, Hatton Garden, London.-(Butzke-Bernard Joseph Akt.-Ges., F. ; 12, Ritterstrasse, Berlin) Jan. 16, 1935, No. 1506. [Class 135] A waste and overflow device for baths, wash-basins, bidets, &c. comprises a removable waste valve member 4 and mechanism for the operation thereof removably inserted in the upper end of the overflow channel 3, the mechanism including a lever 9 which is actuated by a device of small throw. As shown, an eccentric 15 rotatable by a knob 14 engages an adjustable screw pin 16 on the lever 9 just above its pivotal axis 10 so as to cause the lever to lift the valve 4. In other forms, a cam, cam slot, or eccentric stud rotatable with the knob 14 actuates the lever, and in a further modification, two vertical pins on the upper end of the lever engage the inner and outer faces of an eccentric hollow cylinder rotated by the knob 14. The pivot 10 engages at its ends in a hole and a slot in a sleeve 7 which is formed with a groove 20 adapted to engage an inward projection 19 on a mounting-ring 5 fixed to the basin 1. The eccentric 15 is inserted in a closing ring 6 and the knob 14 attached thereto, the sleeve 7 then being inserted into the ring 6 and secured thereto by soldering. The lever 9 is provided with guiding fins near its lower end and is preferably shaped at its lower end with a toe curved approximately parallel to the main part of the lever so as to prevent the end fouling the valve 4 as the lever is inserted. In another construction, the pivot of the lever 9 is above the pin 16.
Patent GB-1424486-A (GB)
Title: Oxide catalyst and process  for preparation thereof
IPC: C07C51/00
Filed: 1974-01-11
Abstract: 1424486 Acetic acid KURARAY CO Ltd 11 Jan 1974 [13 Jan 1973] 01520/74 Heading C2C [Also in Division B1] Acetic acid is formed by the gas phase oxidation of a butene over a vanadium oxidetitanium oxide catalyst in which more than 50% of the titania is in the rutile form and made by calcining at 400-600‹ C. an intimate mixture formed by mixing an aqueous solution of a vanadium compound and a titania hydrogel which on drying at 250‹ C. will give titania of a crystallite size of not more than 70 Š as measured by the Schepper method based on X-ray diffraction. The examples describe oxidizing butene- 1 using a fluidized bed reactor, a temperature of 256-272‹ C. and a feed gas containing 67 Nl./hr. air, 67 Nl/hr. of steam and 3À4 Nl./hr. of butene-1, the gaseous product being passed through a condenser to separate water and acetic acid.
Patent GB-523860-A (GB)
Title: Improvements relating to means for simultaneously controlling a plurality of internal combustion engines
IPC: H02P9/04
Filed: 1939-01-17
Abstract: 523,860. Regulating fuel pumps. C.A.V., Ltd., and EDWARDS. C. L..Tan. 17, 1939, No. 1559. [Class 102 (i)] [Also in Groups XXVII, XXIX and XXXVIII] The fuel pump of an internal-combustion engine, or of a number of such engines, e.g. in a train of rail coaches, are actuated in stages by a number of electromagnetic means each adapted to give a predetermined amount of movement to the controls as energized by a switch operated by the driver. The Fig. shows a control rod d of an engine connected by a link c and arm b to a shaft a, which is rotated in stages by solenoids f ... f<SP>3</SP>, the plungers g of which are connected by links and arms e ... e<SP>3</SP> to the shaft a. The gaps h between the plungers g and fixed cores i of the solenoids vary in width as shown, the widest being in the solenoid f<SP>3</SP> which moves the control d to the full-supply position. The other plungers have lost-motion slots m in their connections. Where there are several engines controlled from the one switch, the corresponding solenoids of each engine are connected up in parallel. A spring n or a weight is arranged to return the shaft a when the solenoids are deenergized.
Patent GB-555320-A (GB)
Title: Improvements in or connected with fire-places
IPC: F24B1/182
Filed: 1942-02-07
Abstract: 555,320. Trivets for fireplaces. DICKS, V. F. Feb. 7, 1942, No. 1664. [Class 126] A trivet F is pivoted to metal block E built into the brick work C of a fireplace cavity. The trivet arm 20 may be arranged non- symmetrically in respect to its palm 19 so as to lie close to the brickwork C when the palm is above the fire. The block E in the form shown in Fig. 3 has an opening 7 bridged by a piece 8 to receive mortar and formed with projections 4, 6 on its rear edges to engage the back of the brickwork. The trivet pivot fits in a hole 3 in a lug 2 on the front of the block and movement of the trivet is limited by checks 2a. A key piece 9, Fig. 7, embedded in the material 10 behind the brickwork engages the opening 7. Fig. 8 shows another construction of block E having rear retaining strips 13 and formed with a rectangular recess 14 having a hole 15 at the bottom to receive the trivet pivot. A key piece embedded in the material behind the brickwork has a cross member engaging between the strips 13. Alternatively the trivet may be pivoted about a horizontal axis.
Patent GB-196376-A (GB)
Title: Improvements in and relating to poultry feeders and the like
IPC: A01K39/014
Filed: 1922-01-21
Abstract: 196,376. Seymour, F. H. Jan. 21, 1922. Feeding - appliances for animals.-A poultry feeder comprises a receptacle a for dry mash with inwardly extending hinged bars or members b to prevent the birds entering the receptacle. The members b consist each of a bifurcated element hooked to the rim of the receptacle a, and are connected together at the apex by a bolt d which may have an eye for suspending the feeder. A loose grating formed of radial and circumferential wires g, h, rests upon the food. When the bolt d is removed the members b may be collapsed within the receptacle.
Patent GB-1522741-A (GB)
Title: Method of running operating and retrieving subsea well equipment
IPC: E21B33/043
Filed: 1976-01-19
Abstract: 1522741 Wells &c FMC CORP 19 Jan 1976 [25 July 1975] 01926/76 Heading E1F In operating a running and retrieving tool 10 for use in running and retrieving well tools into and from a remotely located wellhead 22, the tool 10 is releasably connected to a well tool such as a packoff 32, and the combination is run into the wellhead on a pipe string 20. The well tool may then be operated, e.g. the packoff 32 can be landed on a casing hanger 50, locked to the wellhead 22 by expanding the packoff split lock ring 52 into a wellhead groove 54, and then the packoff resilient seal element 56 can be compressed to provide the desired seal. After such operation, a blowout preventer system 48 is closed around the string 20 and hydraulic pressure is applied to the well below the blowout preventers 48 by means of a choke and kill line 62 extending from the wellhead 22 to a control station. In response to this annulus pressure, the means releasably connecting the tool 10 to the well tool 32 are actuated to release the tool 10, and the hydraulic pressure in the choke and kill line 62 may then be released, the blowout preventers 48 opened and the tool 10 withdrawn on the string 20. In the embodiment of Fig. 1 the releasably connecting means comprise an annular piston 18 provided on the tool 10, the piston 18 responding to annulus pressure by moving downwards to contract an axially-split lock ring 14 such that the ring 14 moves out of engagement with an annular groove 34 in the well tool 32. A passage 46 vents the chamber 44 of the piston 18 to a central bore 40 in the tool 10, to relieve pressure as the piston moves downwardly. In retrieving the well tool 32 from the wellhead 22, the tool 10 is run in with the piston 18 in its upper position. A cam surface 28 of the lock ring 14 engages the top of the tool 32 so that the ring 14 contracts before expanding into the groove 34 to interconnect the tools 10, 32 for retrieval. For use with well tools having "J" slot connecting means, the running and retrieving tool e.g. 140 (Fig. 4) is provided with releasably connecting means comprising several circumferentially spaced spring-biased lock pistons 144 which interconnect the tool 140 and well tool or packoff 32, and are forced inwardly in response to annulus pressure to release the tool 140 for withdrawal. The embodiment of Fig. 4 also differs from that of Fig. 1 in having different pressure balancing means. The central bore of the tool 140 is here closed at its lower end but pressure balancing is accomplished by providing ports (136) in the pipe string above the blowout preventers 48. In further embodiments, different arrangements for pressure balancing are described.
Patent GB-1280572-A (GB)
Title: Recliner chair linkage
IPC: A47C1/0355
Filed: 1970-01-15
Abstract: 1280572 Reclining chairs MOHASCO INDUSTRIES Inc 15 Jan 1970 [21 Jan 1969] 1944/70 Heading A4J A tubular metal cross brace has a transverse section 30 extending across a chair support to which it is fixed by parallel flattened end portions 31. The chair is specifically that disclosed in Specification 1280571.
Patent GB-563486-A (GB)
Title: Improvements in thermionic valve circuits employing degenerative feedback
IPC: H03F3/189
Filed: 1943-02-08
Abstract: 563,486. Thermionic valve circuits. COSSOR, Ltd., A. C., and WYNN, A. H. A. Feb. 8, 1943, No. 2045. [Classes 40 (iii) and 40 (v)] A circuit, the impedance/frequency characteristic of which simulates that of a series resonant circuit, comprises the anode cathode path of a valve, the grid of which is excited solely with a degenerative feedback signal derived from the output of the valve through an auxiliary thermionic valve amplifier which itself has a degenerative feedback path including a bridge balanced at the resonant frequency. The Figure shows an arrangement in which there is obtained between terminal T and earth the properties of a circuit series resonant at the balance frequency of the twin-T networks R1, R2, R3, C1, C2, C3. The grid excitation of the valve V1 consists solely of a signal developed across its cathode load R8 and the output consists of load resistance R7 in parallel with the external circuits connected between the terminal T and earth. The output voltage is applied through a condenser C5 to the suppressor grid of amplifying valve V2, the output of which comprises a resistance R6 in parallel with the cathode resistance R8. The output voltage is also applied degeneratively through the twin-T network to the control grid of the valve V2. At the bridge balance-frequency this feedback is zero so that the valve V2 has maximum gain giving maximum degeneration at this frequency in the valve VI and so producing a low impedance between the terminal T and earth. At other frequencies the gain in V2 is low due to degeneration and consequently the impedance of the valve V1 is high.
Patent GB-304614-A (GB)
Title: Improvements in or relating to potential supply devices for use with thermionic valves and the like
IPC: H04B1/16
Filed: 1929-01-21
Abstract: 304,614. Telefunken Ges. f³r Drahtlose Telegraphie, (Assignees of Siemens & Halske Akt.-Ges.). Jan. 20, 1928, [Convention date]. Converting pulsating currents into steady continuous currents. - In a system in which plate current is supplied to thermionic valves from a power source and in which the grid bias is obtained by utilizing the voltage drop in the smoothing chokes d', d<2>, a constant loading resistance is provided to obtain good regulation. The chokes may be tapped at a plurality of points and the constant loading resistance preferably forms a potentiometer p from which filament and anode potentials are provided. Additional smoothing impedances w<1>, w<2>, and c<3>, c' are preferably provided in the grid bias supply.
Patent GB-933088-A (GB)
Title: Feeding mechanism calendaring machine
IPC: B29C43/34
Filed: 1962-01-19
Abstract: 933,088. Compacting machine and feeding mechanism. BENDIX CORPORATION. Jan. 19, 1962 [Feb. 13, 1961], No. 2087/62. Class 87(2). Brake linings are moulded by placing resin coated asbestos fibres in a bin B, rotating shafts 66 and 60, which have pins 68, 62 in the form of a helix, to advance the material to a hopper H, which is defined by plates 42, 46, 38 and 40 and the surfaces of rolls 10, 12, and rotating the rolls 10, 12 in opposite directions at the same peripheral speed to force the material out through the aperture A in a continuous strip. The thickness of the strip is determined by adjusting the pass between the rolls 10, 12 and the density of the material is controlled by reciprocating rods 74, or rotating helices (see Fig. 4, not shown) which compress the loose material against the grooved surface of roll 10. The lower roll 12 comprises a drum 20 with a hoop 26 slidably mounted on its outer surface to enable rolls 10 of different widths to be used. The position of the hoop is adjusted by bolts 34 (see Fig. 3, not shown).
Patent GB-838783-A (GB)
Title: Improvements in or relating to monitoring arrangements
Inventor: BOLT REGINALD CHARLES
IPC: H04B3/10
Filed: 1956-01-21
Abstract: 838,783. Telephone transmission systems. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. Dec. 20, 1956 [Jan. 21, 1956], No. 2090/56. Class 40 (4). [Also in Group XXXVI] In a transmission system in which a pilot tone is used to control the heating of thermistors in an attenuation correction network, a resistance measuring circuit including a meter is connected across the thermistor to afford permanent monitoring of the condition of the line. As shown, Fig. 1, a variable attenuation network in the transmission line TL comprises a series resistor R2 and two shunt thermistors TH1, 2 heated by rectified pilot current filtered from the transmission line by means not shown. The resistance of the thermistors is measured by a meter Ml (which may be calibrated in decibels) in series with a battery B and the thermistors, chokes L1, L2 preventing the shunting of the A.C. signals on the line. In a further embodiment, Fig. 2 (not shown) a meter measures the resistance of a thermistor controlled by a current derived from two pilot currents, the thermistor controlling the slope of the attenuation-frequency characteristic of a variable equalizer.
Patent GB-871795-A (GB)
Title: Improvements in or relating to weighing apparatus
Inventor: HENDON ANTHONY LEONARD
IPC: G01G7/04
Filed: 1959-01-20
Abstract: 871,795. Photo-electric control systems. TELOMEX Ltd. Dec. 18, 1959 [Jan. 20, 1959], No. 2111/59. Class 40(3) [Also in Group XVIII] In a weighing machine in which the invention resides in the nature of the weighbeam system (see Group XVIII) a beam of light may be made to pass through an aperture movable with the beam and so constructed that the illumination of a fixed photo-cell varies in accordance with the beam position, the cell output being made to control the current in a coil 13 carried by the beam and acting upon a fixed magnet. The photo-cell is a photo-transistor 24 connected as shown in series with a temperature-compensating photo-transistor 25. The cell signal, amplified by transistors 26, 21 is applied to one arm of a bridge comprising the resistors 15, 16, 17, 18, the bridge output being applied to a meter, in series with the coil 13, connected between terminals 19, 20. For check weighing, it is arranged that this output is zero when the required load is applied to the weighbeam. Under and overweight articles then produce an output current which, by the action of the coil and its magnet, is made to resist beam deflection. The current at final equilibrium is a measure of weight error and may be used to indicate rejecting action when necessary.
Patent GB-424300-A (GB)
Title: Improved means for regulating the rate of change of the temperature of furnace charges
IPC: C03B27/016
Filed: 1934-01-22
Abstract: 424,300. Controlled cooling and heating of furnace charges. MANIFATTURA SPECCHI E VETRI F. QUENTIN, 8, Via Capodimonito, Florence, Italy. Jan. 22, 1934, No. 2239. Convention date, Jan. 21, 1933. [Class 51 (ii)] The rate of change of temperature of furnace charges, e.g. glass plates to be annealed, is regulated by means of tubular fluid-cooled screens interposed between the heat sources and the charge and subject to controlled cooling by circulation of air &c., at suitable speed and temperature. The rate both of heating and cooling of the charge can thus be controlled. In the embodiment illustrated, Fig. 1, the glass plates a hang between screens c interposed between them and the electric heating elements b. The screens are composed of tubes c, Fig. 6, connected to upper and lower supply headers. To regularize the incidence of heat on the charge, the screens may be moved to and fro ; also they may be fitted with blades h which, in the full-line position, keep the adjacent atmosphere stirred and which may be turned into the dotted-line position to close the gaps between the tubes. The tubes may be perforated to provide for circulation of air into and out of the furnace.