baber/WOPTO huggingface dataset:
Patent GB-463191-A (GB)
Title: Improvements in and relating to pulverizer mills
IPC: B02C15/12
Filed: 1935-09-23
Abstract: 463,191. Ball - and - ring mills. TRAYLOR ENGINEERING & MANUFACTURING CO. Sept. 23, 1935, No. 26277. Convention date, Oct. 1, 1934. [Class 59] In a mill having at least two grinding stages the first grinding stage is arranged on the upper side of a fixed grinding ring whilst the second stage is arranged on the underside of a fixed grinding ring, the rotatable grinding ring of the second stage being suspended from the rotatable grinding ring of the first stage to increase the load on the latter. As applied to a mill for the dry grinding of materials the row of balls 29 of the first stage is supported on the upper surface of a fixed ring 6 and the balls are driven by a ring 26, and the balls 30 of the second stage run on the underside of the fixed ring 6 and are driven by a ring 27 which is supported by rods 31 from the ring 26. Springs 32 on the rods 31 adjust the pressure of both stages. The rings 26, 27 are loosely connected and driven by a shaft 22 connected to a speed reduction gear comprising an internally toothed ring 20 geared to two idle wheels 17, 18 which are driven by a pinion 16 connected to the driving shaft of a motor 11. A shaft 40 passes through the hollow shaft 22 and drives a discharge fan or pump 37 at its bottom end. A feed gear 14 is driven by the motor 11 and the material falls to the outside of the balls 29. The material passes through these balls and is ground, it then passes from the inside to the outside of the row of balls 30 and is more finely ground, the fineness varying according to the height of an adjustable ring 34. The finished material then falls across openings 36 in the casing to a grid 39 and is discharged with the incoming air through the fan 37. When the mill is used for wet-grinding the holes 36 are closed and the fan replaced by a pump. An additional ring similar to 34 is placed inside the upper row of balls and a water supply pipe fitted. In a three stage mill for grinding damp materials the rotary rings are perforated for the ascent of a low velocity current of hot air, a ring being placed on the upper rotary ring to prevent material falling through the rings. This counter current of drying air is drawn from a casing surrounding the holes 36, the air for drawing off the ground material by the fan 37 is also obtained from this casing.
Patent GB-239074-A (GB)
Title: Improvements in making straw-bands for the manufacture of cigarette mouthpieces
IPC: A24C5/56
Filed: 1924-11-05
Abstract: 239,074. Przedecki, L. Nov. 5, 1924. Paper tubes.-A web of material for cigarette mouthpieces is obtained by gumming upon a band 1<b> of tissue paper, linen, &c., a series of slit and flat-spread straws a<1>, a<2>, b<1>, b<2>, the straws being arranged in parallel rows with the fibres of the straws lying in the direction of the band. The joints x between the straws in one row are preferably staggered in relation to those of the next row, and the straws are reduced by grinding at the joints, as shown in Fig. 4, so that the thickness of the joints is substantially that of the straw.
Patent GB-1114220-A (GB)
Title: Paint stripping compositions
IPC: C09D9/00
Filed: 1966-06-14
Abstract: A paint-stripping composition comprises at least 10% by weight of one or more organic paint-stripping solvents, at least 0.5% by weight hydrogen peroxide and at least 0.5% by weight of water. Specified paint-stripping solvents are hydrocarbons, halogenated hydrocarbons, lower alcohols, phenols, 2-nitropropane, and ketones.  The composition may also contain one or more organic surface-active agents, several non-ionic, anionic, cationic and ampholytic types being specified, and a thickener, e.g. various cellulose derivatives, various synthetic polymers, colloidal silica, colloidal alumina, bentonite, gum arabic, starch, tragacanth, or agar, or an evaporation retardant which may be in the form of a water seal which rests on top of the paint-stripper, e.g. water and paraffin wax.
Patent GB-330191-A (GB)
Title: Improvements in shoe heel grips
IPC: A43B23/28
Filed: 1929-08-30
Abstract: 330,191. Lucking, S. Aug. 30, 1929. Heel friction pads.- A heel friction grip or pad 1 comprises a single piece of sponge rubber of approximately oval form with a backing of textile fabric attached by vulcanization to the rear face. The heel pad may have a pair of tongues 2 projecting from one side and the edges may be chamfered, as shown. The textile fabric acts as a reinforcement and may be treated with adhesive, before or after sale, to attach it in position in the heel of the shoe.
Patent GB-1176907-A (GB)
Title: Device for Determining Transition Temperatures
IPC: G01N25/08
Filed: 1968-06-04
Abstract: 1,176,907. Determining melting point temperatures electrically. W. C. HERAEUS G. m.b. H. June 4, 1968 [June 7, 1967], No.26591/68. Heading G1N. In the determination of the transition temperature of a specimen 4 Fig. 2 contained in a capillary tube 3 and in which a thermocouple element 5 is immersed, heat is supplied to the specimen at a constant rate, i.e. the difference in temperature between the specimen and its surroundings is maintained constant. The capillary tube is contained in a block 1 heated by resistance 2 and whose temperature is sensed by thermocouple element 7 connected in series opposition with element 5 to the input of a regulator 10 in which the voltage difference is compared with one of a plurality of fixed voltages and the error signal used to energize the resistance 2 to maintain the temperature difference constant. The element 5 is also connected in series opposition with a further thermocouple element 8 in a constant temperature enclosure, i.e. in iced water in a Dewar flask or in a heated metal block, to a recorder or digital or analogue meter 11 to indicate the temperature. This voltage may also be differentiated in a CR circuit 12 and metered at 13, the transition point occurrence being indicated by a fall in the indication of the meter. Alternatively or additionally the differentiated voltage may be used to start a recorder 15 at the start of the transition point or to actuate an audible alarm 12.
Patent GB-1386036-A (GB)
Title: Erythromycin derivatives
IPC: C07H17/08
Filed: 1973-06-04
Abstract: 1386036 Erythromycin salts LABORATORIO CHIMICO FARMACEUTICO DR P BLASINA SrL 4 June 1973 [5 June 1972] 26604/73 Heading C2C [Also in Division A5] Novel salts of glycyrrhizic acid with erythromycin or an ester thereof are prepared by reacting the said acid with erythromycin or an erythromycin ester in a liquid reaction medium. The salts are preferably further salified with an organic or inorganic base which is added to the reaction medium. The preferred salts have the formula  wherein Z represents glycyrrhizic acid, B is an organic or inorganic base, n is a number from 1 to 3, m is a number from 0 to 6, and R is hydrogen or an acyl group from a pharmaceutically acceptable mono- or esterified di-carboxylic acid. The salts are admixed with a pharmaceutical carrier or diluent to provide antibiotically active pharmaceutical compositions.
Patent GB-1323241-A (GB)
Title: Rotary fluid cylinder for self-centering chuck
IPC: B23B31/175
Filed: 1971-04-19
Abstract: 1323241 Lathes; chucks MARIO PINTO SpA 19 April 1971 [9 May 1970] 26666/71 Headings B3B and B3T A rotary fluid operated piston and cylinder assembly 9 which is adapted to control a lathe chuck 2 through a draw and push spindle 6 includes valve means 22, 24 disposed within the cylinder 10 and arranged so that in the event of failure in the hydraulic pressure supply the valves close to prevent loss of pressure in the compartments A, B of the cylinder, thereby ensuring that the workpiece remains gripped in the jaws 3 of the chuck. Each of the valves 22, 4 extends from end to end of the cylinder 10 passing slidingly through the piston 13 and each includes a spring loaded slidable closure member 34, 34<SP>1</SP> adapted to seal against ridges 30, 30<SP>1</SP> on inner tubular members 28, 28<SP>1</SP> which communicate respectively with the supply conduits 21, 23. When hydraulic fluid is to be supplied, e.g., via valve 22 to one of the compartments, e.g., A, of the cylinder the pressure overcomes the load of the spring 35 displacing the closure member 34 to allow passage of hydraulic fluid. When fluid is to be exhausted, e.g., through the valve 22 from compartment A a slidable member 31 is displaced by the pressure of the fluid in the other compartment B (supplied through valve 24) to lift the closure member 34 from the seating ridge 30 again allowing the required flow of hydraulic fluid. If the supply pressure in either conduit 21 or 23 fails the closure members 34, 34<SP>1</SP> are forced against the respective ridges 30,  301 to lock the piston 13 and thus the draw spindle 6 and chuck jaws in position. The cylinder 10 has vanes formed on its external rear surface to cause a cooling flow of air over  the housing member through which hydraulic fluid is supplied.
Patent GB-765593-A (GB)
Title: Improvements in optical systems for viewing pictures
IPC: G02B27/22
Filed: 1954-09-14
Abstract: 765,593. Optical systems. POHL, F. Sept.. 14, 1954 [Sept. 16, 1953; Feb. 15, 1954], No. 26680/54. Class 97(1) To create an impression of relief in a single picture or luminescent image on a screen, it is viewed through a transparent lenticular screen having a concave curvature towards the screen. Preferably, the lenticular screen 2 is provided with a rectilinear pattern of small lens elements 3. It may be formed as part of a surface of revolution which may be a sphere or may have different radii of curvature in different directions so that its base or rim is not circular. The screen 2 may be combined with a collecting lens (Fig. 9), which may have an aspherical, and a spherical surface. As shown, the lens is formed of two shells 22, 23 having an optically dense medium, in any physical state; in the space- 24 between them. The lenticulations may be provided on an inner surface of either shell, provided that the refractive index of the medium is different from that of the material of the shell) or on the outer surface of either sheel. The shells may be filled with a, thermosetting monomer which is then polymerized. The screen 2 may be in the form of a thin layer or foil covering one side of a solid collecting lens or, it may be formed integrally with the lens. Preferably, the lens elements completely cover the screen without any intervening spaces and thus they may have the form of squares or regular hexagons. Preferably, they are too small be resolved by the naked eye at the normal viewing distance. They may be convex or concave and may have different radii of curvature in different directions. The screen 1 may be that of a cathode-ray tube, or, images may be formed on it by back-projection, in either case, when a collecting lens is used, the screen 1 may be concave towards the viewer. When an image is produced by front projection through screen 2 or, if there is extraneous front lighting, a non- reflective coating may be applied to the front surface of the screen 2. When an. ordinary picture is being viewed a light source may be placed between it and the screen 1. The rims of a lenticular screen of the shown in Fig. 2a may be cemented to the periphery of the screen of a cathoderay tube. The enclosed space is not evacuated and serves as a protection against implosion. The lenticulations may be formed integrally with the screen 2 or they may be separate from the screen and applied individually to its surface while it is plastic.
Patent GB-233992-A (GB)
Title: Improvements applicable to lamp, candle and other shades
IPC: F21V1/00
Filed: 1924-11-08
Abstract: 233,992. Wolfle, J. F. Nov. 8, 1924. Shades.-A lamp shade comprises a framework consisting of a crown c and a base-piece b and inter-spaced connecting bars d detachably secured thereto and having rectilinear front faces extending to the outer extremities of the crown and base, detachable panels of mica, non-inflammable celluloid, tortoiseshell &c. being sprung into position behind the front faces of the bars and the edges of the crown and the base-piece. One end of the shade is open, the other end being provided with attachment means. In one form, the connecting-members d consist of T bars preferably of thin sheet metal folded on itself and formed at the ends of the webs with tongues e' for engaging slots in the crown and base-piece, the webs e of the bars being arranged radially to the axis of the shade. The end pieces are formed with flanges c<1>, b<1>, and the panels may be decorated or form mounts for the reception of photographs, pictures, silk panels f<1> &c. The opening between adjacent bars d may be divided by a cross-bar g or cross-bars. The cross-bars may be detachable so that glass or other non- flexible panels may be inserted in the upper and narrower parts of the shade
Patent GB-648945-A (GB)
Title: Improvements relating to ski-sticks
Inventor: ATTWOOD PERCY GORDON
IPC: A63C11/24
Filed: 1948-10-14
Abstract: 648,945. Ski-poles. ACCLES & POLLOCK, Ltd. Oct. 14, 1948, No. 26735. [Class 132 (i)] A ski-stick comprises a tubular metal shaft a with a groove b in which is rotatably mounted a metal collar c to support the basket ring. The collar c has two flanges d each with three equidistant holes f, the holes on the two collars being staggered with respect to one another. Straps g, made from rubber or the like and secured by a rivet as shown, are looped through the holes f and loops i attached to the basket ring h.
Patent GB-711300-A (GB)
Title: Improvements in or relating to electric cooking apparatus
IPC: A47J27/16
Filed: 1951-11-15
Abstract: 711,300. Cooking vessels GENERAL ELECTRIC CO., Ltd., and BILSLAND, G. A. Oct. 24, 1952 [Nov. 15, 1951], No. 26804/51. Class 66 [Also in Group VI] An electric steam cooking apparatus (see Group VI) has a lid 7, with a handle 11, which rests on a sealing member 10 between the walls 1 of the casing and has a drip edge 28 for condensate. The lid swings on a hinge 8 and has a counter weight 9. In a modification, Fig. 4, the counterweight is omitted, a handle 33 having two grips is provided and a channel 34 is formed in the lid to collect condensate on its underside.
Patent GB-756650-A (GB)
Title: Improvements in and relating to electric control systems
Inventor: ROGERS ALFRED A
IPC: G05B11/01
Filed: 1954-09-16
Abstract: 756,650. Automatic control systems. WEST INSTRUMENT CORPORATION. Sept. 16, 1954, No. 26893/54. Class 38 (4). In a closed sequence system for controlling a variable apparatus for correcting the variable is switched on and off intermittently by an electrical relay, the ratio of on to off time of which is controlled by the variable through a saturable reactor. When the temperature of an electric furnace 1, Fig. 1, has a desired value a thermocouple 12, responsive to furnace temperature, energizes an electrical temperature indicator 17 so that a flag 32, carried by the pointer 18 of the indicator, half obscures the light transmitted between a lamp 23 and a lead sulphide photo-cell 28 carried by an arm 20 for setting the desired temperature. Under these conditions photo-cell 28 produces such an energization of a control winding 31 of a saturable reactor 36, 37 in series with the supply from a mains transformer 26 to a selenium rectifier 10, that the output of the rectifier is sufficient to energize a relay 6 and switch on a furnace heater 2. Operation of relay 6, however, energizes a heater 68 and de-energizes a heater 67 so that a temperature-variable resistor 58 is cooled and a temperature-variable resistor 59 is heated to increase the energization of a bias winding 54 opposing winding 31 and thereby de-energize relay 6. The cycle then repeats and heater 2 is intermittently energized with equal " on " and " off periods to maintain the desired furnace temperature. Deviation of furnace temperature from the desired value increases or decreases the light falling on photocell 28 according to the sense of deviation to vary the energization of winding 31, and hence the ratio of " on " to " off " time of heater 2, so that the deviation is corrected. If the temperature falls to such an extent that all the light falls on photo-cell 28, heater 2 is permanently energized while if the temperature rises to such an extent that no light falls on photo-cell 28 heater 2 is permanently de-energized. Feedback dependent on relay current is applied to winding 63 which aids winding 31 to ensure positive operation of relay 6. Application to maintaining a desired pressure in a space by controlling an electric pump or valve supplying fluid to the space is referred to.
Patent GB-1487670-A (GB)
Title: Measuring bridge
IPC: G01K7/20
Filed: 1975-06-25
Abstract: 1487670 Bridge "SATCHWELL-BIRKA" REGELUNGSTECHNIK GmbH 25 June 1975 [6 Nov 1974] 26973/75 Heading G1U A bridge consisting essentially of a variable resistor 3, Fig. 1, e.g. a thermistor, to be measured, a second resistor 4, and two potentiometers 20, 22, is characterized in that the supply voltage across the bridge is automatically controlled 27 so that the potential difference between the two potentiometer taps is maintained constant equal to the potential across a resistor 38 when a constant current is drawn through it by a current sink 28. The diagonal output voltage from the bridge is converted to a proportional current i through a resistor 9 by isolating amplifiers 6, 17 and a transistor 7. The arrangement is such that when the resistor 3 is a thermistor the relationship between its temperature t and the resulting current i is substantially a straight line extending between a lower point set by potentiometer 22 and an upper point set by potentiometer 20. Typical possible characteristics are shown Fig. 2 (not shown), and by using slider potentiometers the two slider knobs can be arranged against a calibrated scale to indicate the two end points of the characteristic. The bridge is for use with a night storage heater or a hot water system.
Patent GB-778118-A (GB)
Title: Improvements in or relating to advertising or display devices
IPC: G09F19/00
Filed: 1955-09-22
Abstract: 778,118. Moving signs. GOODMAN, L. March 9, 1956 [Sept. 22, 1955], No. 27080/55. Class 3 (1). A display device comprises an opaque stand 10 carrying a circular disc of transparent material on its front face which is backed by a coloured disc 19 oscillated by a battery-operated motor. The motor comprises a D-shaped member 27 which is secured to the disc shaft 20 and carries a permanent magnet 28, a battery 29 which is resiliently mounted on a bracket 24 and a stator coil which is disposed between two insulating plates 26 and is connected to a spring 31 adapted to co-operate with a contact 32 on the shaft 20. The front of the device may be provided with one or more display shelves or brackets and the transparent disc may carry advertisements.
Patent GB-1468994-A (GB)
Title: Operating mechanism for a valve of an internal combustion  engine
IPC: F01L1/16
Filed: 1974-06-19
Abstract: 1468994 I C engine valve gear CHRYSLER FRANCE 19 June 1974 [20 June 1973] 27291/74 Heading F1B [Also in Division F2] To prevent valve bounce, a disc 6 interposed between the cam 5 and the rocker arm 3 is connected via a spindle 8 to a conical dashpot piston 12 movable with clearance in a cylindrical cavity afforded by an insert 13, the dashpot fluid comprising lubricating oil fed through a pipe 15.
Patent GB-1042340-A (GB)
Title: Electromechanical voltage regulator
IPC: G05F/
Filed: 1963-07-10
Abstract: 1,042,340. Automatic voltage control. S. A. DE MACHINES ELECTROSTATIQUES. July 10, 1963 [July 10, 1962], No. 27317/63. Heading G3R. A voltage regulator for an electrostatic generator 1 includes electrodes 5, 6 which are connected across the generator so that the electrostatic attraction between them is a measure of the output voltage electrode 5 being fixed and electrode 6 being movable against the restraint of an electromagnet 21 or spring (Fig. 2, not shown). A linkage 8, pivoted about a spindle 9, mechanically and electrically connects electrode 6 to a point electrode 10 co-operating with a further electrode 12 associated with a resistor 13 and a battery 3 supply the energizing voltage for the generator. When the output voltage exceeds a predetermined value selected by adjustment of the restraining means, the attractive force between electrodes 5 and 6 causes electrode 6 to move away from a stop 15, whereby the point electrode 10 moves away from a grounded shielding ring 11 and towards the electrode 12; arcing then occurs between electrodes 10 and 12, the resulting current flow causing an increased voltage drop across resistor 13, whereby the energizing voltage of the generator is reduced to bring about a corresponding reduction in the output voltage which is thus maintained substantially constant at the predetermined value.
Patent GB-1029850-A (GB)
Title: Improvements in hydraulically levelled platforms and load carriers
IPC: B66F11/04
Filed: 1961-02-07
Abstract: 1,029,850. Mobile luffing arm machines; vehicle load platforms. W. H. PAYNE. April 30, 1962 [Feb. 7, 1961], No. 27356/65. Divided out of 1,027,451. Headings B8E and B8H. [Also in Division E1] The load-handling apparatus of the boomtype truckloader described in the parent Specification is provided with a platform or load carrier having hydraulic levelling means such that movement of the members of the apparatus transmits fluid power to or for the operation and control of the actuating means of the levelling means, thus maintaining the platform or carrier level through the range of movements of the load-handling apparatus. A work platform 160 is adjustably mounted at 161 on a lever arm 158 pivoted at 159 to a main framework 157 pivoted at 156 to the jib 9 of the load handling apparatus. Levelling jacks 162, 165 can maintain the platform level in any position of the jibs 7, 9 as indicated. The operations of the levelling jacks 162, 165 may be effected by servo jacks 173, 174 or by a manually operated control valve or by a combination of these controls. In modifications shown, the platform 160 may be replaced by lifting forks or a carrier for cylindrical loads.
Patent GB-1436783-A (GB)
Title: Apparatus for detecting the boundary between bodies of different emissivity
IPC: C03B18/04
Filed: 1973-06-08
Abstract: 1436783 Float glass process PPG INDUSTRIES Inc 8 June 1973 [9 June 1972 (2)] 27368/73 Heading C1M [Also in Division G1] The boundary between two bodies of different thermal emissivities, e.g. the boundary between the molten metal and glass in the float glass process is detected by the use of an elongated thermal detector mounted to receive thermal radiation from the boundary, the detector including a cooling device for removing heat from the detector at the same rate as it is received from the hot bodies. As shown the detector 20 includes an enclosure 21 surrounded by a cooling jacket 23. An elongated thermal insulator 39 is mounted in the enclosure 21 so that one major surface receives radiation through slots in the enclosure. A plurality of series connected thermocouples are positioned on the insulator 39 so that each has one junction 41 on the said major surface and the other junction is on the opposite surface. The detector 20 is mounted in the float tank by coolant pipes 31, 33.
Patent GB-1078444-A (GB)
Title: Nickel alloys
IPC: C22C19/05
Filed: 1966-06-20
Abstract: A corrosion-resistant casting alloy has the following percentage composition:- .Cr.16 - 20 .Mo.0.5 - 2.5 .Nb.0.5 - 2 .W.1 - 3 .Al.5.5 - 7 .Ti.0 - 0.75 .Co.0 - 15 .C.0.025 - 0.08 .B.0.01 - 0.05 .Zr.0.01 - 0.2 .Ni the balance. The alloy may be solution treated at 1150-1200 DEG C. for 1-10 hours and aged at 870-925 DEG C. for 10-50 hours.