baber/WOPTO huggingface dataset:
Patent GB-321748-A (GB)
Title: Improvements in the manufacture of tablets or cubes for stock food, and in machines therefor
IPC: B30B15/00
Filed: 1928-08-27
Abstract: 321,748. Cooke, F., and Meggitt, Ltd. Aug.27, 1928. Rotary-mould table machines.-Tablets or cubes of material are formed from ground grain and other divided materials by subjecting the material to constitute the tablet to sufficient pressure to express from the particles the natural oil, juice, or moisture, the pressure being maintained or slightly increased for a length of time to permit the expressed liquid to permeate the whole mass and to bind the particles into a coherent tablet. The tablets are formed in a rotary tableting machine having an upper plate 10 supported by columns 8, 8<1>, from a base plate 9. A circular table 12 rotatably mounted on a central vertical spindle 12<1> is provided at the lower part of its edge with teeth 20 by which it is driven from diametrically opposite gears 30, 34 mounted on shafts 29, 33, connected by bevel gear to a main shaft 26. The top portion of the table 12 is slotted to receive the guides 14 of top punches 15, the table being increased in diameter below this portion to form a die holding portion 16. The guides 14 are mounted upon spindles 39 that project through holes in the table and ride at their lower ends on a cam way 38, attached to the machine frame. The lower punches 18 are carried in guides in the lower section of the table and are actuated by the adjustable cams and abutment rollers shown developed in Fig. 3. The machine shown is equipped in diametrically opposite positions with similar sets of abutment rollers, each set consisting of two adjacent top rollers 40 and two adjacent bottom rollers 44. The top rollers are mounted in bearings supported on the top plate 10, and are provided with an horizontal bridging piece 45 arranged as a common tangent to the two rollers at their lowest points. The two bottom rollers of each set are mounted in bearings that can be adjusted vertically by tapered blocks 48 adjustable by a screw 49 and hand wheel 51. A pivoted bridge piece 52 extends between and rests on the two rollers, of which the second one is slightly higher than the first. The ends of the lower punches ride on the abutment rollers and the bridging piece and then engage pivoted and adjustable cam surfaces 61, 63 by which they are forced upwards to discharge the formed tablet from the die to be engaged by an ejector finger 74. Grooves 69 in the ends of the punches are then engaged by a ridge cam 70 to retract the punches below a bottomless feeding trough 76 supported from the machine frame and supplied by a hopper. The trough 76 has a middle longitudinal wall 78, each of the main compart. ments thus formed being subdivided by inclined transverse walls 81, 81<1>, into small chambers connected by apertures 82 formed in the lower part of the walls. The material falls into the dies from the inner longitudinal compartment; the outer compartment serves as a reservoir for material.
Patent GB-1217387-A (GB)
Title: Improvements relating to lenses
IPC: G02B5/00
Filed: 1968-05-23
Abstract: 1,217,387. Lenses. OPTISCHE INDUSTRIE "DE OUDE DELFT" N.V. May 23, 1968 [June 9, 1967], No.24650/68. Heading G2J. A lens 1 having a circumferential border surface 2 which is optically inactive is provided with a preshaped ring 3 of optical material having a high absorption for light and a refractive index substantially equal to that of the lens body, the ring 3 being in optical contact with the lens 1 through the border surface. The ring may be made of glass or synthetic plastics and is placed round the lens border after the lens surfaces have been polished, and optical contact may be achieved by optical cement after the surfaces to be cemented have been roughened by working with diamond tools. The cylindrical ring may be of black coloured glass.
Patent GB-1224398-A (GB)
Title: Improvements in or relating to optical glass compositions
IPC: C03C3/155
Filed: 1968-05-23
Abstract: 1,224,398. Optical glass. PILKINGTON BROS. Ltd., and G. A. HIGHAM. 28 April, 1969 [23 May, 1968], No. 24736/68. Heading C1M. An optical glass composition contains in weight percentage based on the weight of the total composition:- B 2 O 3  .. .. .. .. 30-40 La 2 O 3  .. .. .. 35-55 Nb 2 O 5  .. .. .. .. 0À1-30 Al 2 O 3  .. .. .. .. 0À1-15 ZrO 2  .. .. .. .. 0-10 the balance, if any, consisting of other compatible constituents. The glass has a refractive index of 1À70-1À75 and a reciprocal dispersive power " Ve " of 40-50.
Patent GB-1062884-A (GB)
Title: Photochemical cross-linding of polymers
Inventor: LARIDON URBAIN LEOPOLD
IPC: G03F7/008
Filed: 1964-06-15
Abstract: Aryl and alkyl disulphonyl azides are prepared by reacting the disulphonyl chloride with sodium azide.  Benzene, toluene, naphthalene, diphenyl, diphenyl, oxide, diphenyl methane, and butane are the specified aryl and alkyl radicals.ALSO:Polymers which contain groups which react with the decomposition products of sulphonylazide groups are cross-linked by exposing such polymers with a minor amount of a compound containing sulphonyl azide groups to light. Specified polymers are those containing hydroxyl groups e.g. an epichlorohydrin/2,2-bis (4-hydroxyphenyl)-propane condensation products or polyvinyl butyral, containing pyridine groups e.g. polyvinyl pyradine, containing phenyl groups e.g. styrene polymers and copolymers, or containing lactam groups e.g. poly N-vinylpyrrolidone. Specified azides are the disulphonyl azides of butane, benzene, toluene, diphenyl, diphenyl oxides or diphenyl methane and naphthalene. The polymeric layer may contain a photosensitizer such as Michler's ketone, a pyrazoline or a naphthothiazoline.
Patent GB-679794-A (GB)
Title: Improvements in and relating to stippling devices
IPC: B05C17/02
Filed: 1950-10-11
Abstract: A stippling device comprising a cylindrical roller rotatably mounted on a shaft attached to a handle and having an outer casing of textile stuff, has the casing fixed to the surface of the roller along a narrow axial strip and has the diameter of the roller and the inner diameter of the casing so arranged that a space is provided between the surface of the roller and the casing.  The casing may be secured to the roller by an axially arranged line of staples.
Patent GB-851737-A (GB)
Title: Improvements in electric selector switches
IPC: H01H1/16
Filed: 1957-08-07
Abstract: 851,737. Regulating switches. FOSTER TRANSFORMERS Ltd., and BROOKS, H. H. Aug. 6, 1958 [Aug. 7, 1957], No. 24857/57. Class 38 (5). A switch wherein a roller contact is moved to interconnect any selected adjacent pair of a plurality of fixed contacts comprises an insulating base plate 5 having a boss 12 to house an operating spindle 13 with an insulating arm 14 carrying a roller 11 which engages contacts 4 mounted on the base plate 5. Each contact 4 comprises a terminal socket 7 and an arm 8 directed radially inwards, tapered both in thickness and width and having a convexly curved surface for engagement by the roller 11. The spindle 16 of roller 11 is pivoted in a bracket 15 at the end of arm 14 and a spring 18 tends to force the roller 11 into the gap between adjacent contact arms 8 where it makes point contact with each arm and the spindle 16 is approximately parallel with the inclined surface of the arms, as shown. The arms 8 may be prevented from rotating by lugs 10 moulded on plate 5, as shown, or by studs on the arms 8 which enter apertures in the base plate 5 (Fig. 3, not shown).
Patent GB-706941-A (GB)
Title: Improvements in or relating to apparatus for controlling the flow of fluids through ducts
IPC: F24F11/04
Filed: 1951-10-24
Abstract: 706,941. Ventilator valves. AIR CONTROL INSTALLATIONS, Ltd., and WRIGHT, F. Oct. 24, 1952 [Oct. 24, 1951], No. 24895/51. Class 137. [Also in Group XXIX] An apparatus for controlling fluid flow, eg. air through a ventilating duct 10 has one or more blades 14-16 free of twist and secured obliquely to one side of a rotatable shaft 11, and others 14a-16a secured obliquely in the opposite sense on the other side. Thus in one position the blades are edge on to the flow and offer little resistance, while the 90 degrees rotation of the blades gives a maximum restriction to flow and a maximum rotational swirl to the fluid. Pairs of blades may be formed from one sheet of metal partly slit across its width, the two portions being bent in opposite directions and secured to arms 17 radiating from the shaft.
Patent GB-403344-A (GB)
Title: Improvements in or relating to the germinal gland hormones
IPC: A61K31/56
Filed: 1933-09-08
Abstract: Crystallized derivatives of germinal gland hormones are prepared by forming addition compounds of the hormones with quinoline.  Pure hormones may be obtained by decomposing the compounds with dilute acids.  According to an example follicle hormone of the formula C18H22O2 is heated with an equal weight of quinoline and the crystal paste which forms on cooling is pressed out on porous tile.  The molecular compound may be recrystallized from ether or pure alcohol. An ether solution may be extracted with dilute hydrochloric acid to remove the quinoline leaving the pure hormone in solution.ALSO:Crystallized derivatives of germinal gland hormones are prepared by combining the hormones with quinoline.  Pure hormones may be obtained by decomposing the compounds with dilute acids. According to an example follicle hormone of the formula C18H22O2 is heated with an equal weight of quinoline.  On cooling the whole solidifies to a crystal paste which is pressed out on porous tile.  The molecular compound can be recrystallized from ether or pure alcohol.  An ether solution of the compound may be extracted with dilute hydrochloric acid to remove the quinoline leaving the pure hormone in solution.
Patent GB-857577-A (GB)
Title: Improvements in soldering fluxes
IPC: B23K35/36
Filed: 1957-08-07
Abstract: A soldering flux consists of gum rosin and glacial acetic acid, the proportion of the latter being preferably 0.1-10% by weight. The flux may be produced in liquid form by dissolving it in an alcohol such as methyl, isopropyl or butyl alcohol; the resulting composition is preferably composed by weight, of 30% flux and 70% alcohol.
Patent GB-361896-A (GB)
Title: Improvements in and relating to devices for printing advertisements on pavements, walls and the like
IPC: B41F17/00
Filed: 1930-08-21
Abstract: 361,896. Printing on roads &c. IMREI, S., 24, Dr. Kasapinovica ulica, Pancevo, Jugo-Slavia. Aug. 21, 1930, No. 25005. [Class 100 (ii).] Apparatus for printing advertisements on pavements, roads, or walls comprises a printing-roller mounted in a frame and supplied with ink by a hollow inking-roller resting on the printing-roller, and a brush mounted on the frame and adapted to sweep the pavement &c. in advance of the printing- roller. In one form, Fig. 3, the printing-roller 4 and brush 8 are mounted in a frame 1 having a handle 2 and the types &c. carried by the roller 4 are inked by a hollow perforated roller 6 covered with felt. The shaft 7 of the roller 6 engages in slots in the frame 1 so that this roller rests by gravity upon the roller 4. The roller 4 may be provided with a rubber sleeve on which the design or text is moulded, or as shown, may be provided with ribs 9 to receive separate types or type-bars 10, Fig. 4, resiliently supported by leaf springs 11 pressed outwardly by spiral or leaf springs 12. The ribs 9 may be of wedge form, the spaces between being of rectangular or trapezoidal section. In another form of roller 4, the types are arranged circumferentially of the roller. The apparatus may be mounted on a motor car, means being provided for raising and lowering it out of and into operative position.
Patent GB-1041175-A (GB)
Title: Hydroxylation and dehydrogenation of steroids
IPC: C12P33/00
Filed: 1963-06-24
Abstract: The invention comprises a process for preparing 11b -hydroxy-3-oxygenated-1,4-androstadienes and pregnadienes by treatment of a corresponding 3-oxygenated-4-androstene or pregnene with a micro-organism of the species Bacillus cereus.
Patent GB-1269237-A (GB)
Title: Improvements relating to hydraulic transmissions
IPC: F16H61/40
Filed: 1969-05-16
Abstract: 1,269,237. Hydrostatic transmission. INTERNATIONAL HARVESTER CO. 16 May, 1969 [23 May, 1968], No. 25089/69. Heading F2D. In a vehicle hydrostatic transmission having by-pass relief valves 19, 19A preventing excessive pressures, a manually-controlled pilot relief valve 50 controlling one or, Figs. 3 and 5 (not shown), both valves 19, 19A, provides a vehicle inching control and a neutralizing control. The transmission comprises a pump and a motor of the variable-stroke swash-plate type having the by-pass valves 19, 19A between their pressure and return lines. The valves have spring-loaded spools 38, 38a subjected to the pressure in a line 18a, 18 connected to a respective transmission line. As shown, a passage having restricted orifices 48, 47 is provided in the valve 38 and leads to the relief valve 50. During forward gear, high pressure in line 46, (derived from high pressure in line 18A via line 20 and restricted orifices 48, 47), acts against the spring-loaded poppet 53 of valve 50 which opens automatically under excess pressure to vent the transmission. By depressing pedal 72, e.g. during an emergency stop, the spring- loading of poppet 53 is decreased and excess pressure in line 46 is quickly relieved through valve 50, creating a pressure differential across the sleeve 38 which opens to connect lines 18, 18A. By selectively depressing and raising the pedal 72, the vehicle may be "inched" forward. During reverse, or on overrun in forward, valve sleeve 38 is subject to low pressure only, but this is still sufficient to open the valve 19 when the pedal 72 is depressed. Again, Fig. 3 (not shown), both valves 19 and 19A are connected to relief valves (100A), (100B) connected to a common pedal to provide inching and complete by-pass in forward and reverse. Again, Fig. 5 (not shown), both valves 19, 19A are connected to a single relief valve 50 through a one way check valve (201), (202). A shuttle valve (24), Fig. 1 (not shown), is opened under the high pressure to direct low pressure make-up fluid from an engine driven pump (12) to cool the pump/motor unit.
Patent GB-462394-A (GB)
Title: Improvements in trunk pistons for use in internal combustion engines
IPC: F02F3/02
Filed: 1935-09-10
Abstract: 462,394. Pistons. MARLOW, E. H. Sept. 10, 1935, No. 25178. [Class 122 (i)] Each gudgeon-pin boss is connected to the head and skirt by inclined webs 3, 5 which extend substantially along the lines of thrusts exerted in the piston. The skirt may be formed with oil scraper grooves which extend upwardly and inwardly from the skirt periphery.
Patent GB-141283-A (GB)
Title: Improvements in and relating to powder puffs
IPC: A45D33/34
Filed: 1919-10-16
Abstract: 141,283. Podmore, A. Oct. 16, 1919. Powder-puffs.-The powder-containing material 2 of a powder-puff, of the handkerchief or sachet type is protected by a cover of transparent and easily-removable material 4, which may be secured by a seal 6, which is removed after purchase.
Patent GB-1109018-A (GB)
Title: Carriage control means for cloth laying machines
Inventor: WENDELKEN GERARD J
IPC: B65H45/103
Filed: 1966-06-08
Abstract: 1,109,018. Layering fabrics. CUTTING ROOM APPLIANCES CORPORATION. 8 June 1966, No. 25431/66. Heading D1S. A fabric laying machine comprising a movable carriage 11 supported by wheels 15 to reciprocate rectilinearly over a table 18 and a motor (17), Fig. 2 (not shown), to drive the wheels 15 through a clutch (58) and sprocket chains (16), is provided with carriage control means comprising switches 20, 21 mounted on the carriage 11 and which are provided with roller actuators operable by trippers 22, 23 mounted at predetermined positions along the table 18 so that contact by one of the switches with one of the trippers serves to interrupt passage of the current to the motor (17). The wheels 15 are guided on tracks 19, see also Fig. 3 (not shown). In operation, at the beginning of each cycle of reciprocation, the operator selects the direction of carriage travel by closing a switch (55) or (56), Fig. 4B (not shown). A button 43 is depressed and the carriage 11 moves in the selected direction at a relatively slow speed until contact is made between the switch 21 and the nearest tripper 23 to cause the motor (17) to be accelerated to a higher speed. Traverse of the carriage 11 is continued until the switch 21 contacts the other tripper 23 to decelerate the motor (17) which runs at a slower speed until the switch 20 contacts the adjacent tripper 22 to stop the motor (17) which serves as a dynamic brake to stop the carriage 11. As soon as the carriage stops the clutch (58) is disconnected. A turntable (not shown), which is mounted on the carriage 11 and supports a roll of fabric, is rotated and the fabric web rethreaded. The carriage may be manually moved to align the cut ends of the web and the previous laid layers. The cycle is repeated to return the carriage to its original position. An electrical circuit for the operation is described, Figs. 4A and 4B (both not shown).
Patent GB-958858-A (GB)
Title: Process and device for improving the thermal uniformity of molten glass
IPC: C03B5/23
Filed: 1962-07-03
Abstract: <PICT:0958858/C1/1> <PICT:0958858/C1/2> <PICT:0958858/C1/3> <PICT:0958858/C1/4> <PICT:0958858/C1/5> In a process for improving the thermal uniformity of molten glass in a duct conducting the glass from a melting furnace to a working compartment, a transverse temperature is created in the roof of the duct of a general pattern which is the reverse of the transverse temperature that tends to become established naturally in the glass flow from the melting furnace.  A molten glass conducting duct 1, shown in cross-section in Fig. 1, carries a metal box 6 with an inlet pipe 7 and discharge pipes 8. The box 6 is raised above a rectangular aperture 9 in the roof 5 of the duct 1.  A slot 13, located between the box 6 and refractory material 15 on the bricks bounding the aperture 9, accommodates slabs 16 of refractory material (Fig. 4). Thermocouples 42 are also provided.  In use, air is introduced through the pipe 7 into the box 6 and by virtue of the shape of the slabs 16 produces a cooling action that decreases from the centre towards the walls of the duct 1. Instead of the box 6 a finned plate against which air is directed may be used.  In another embodiment all or part of the air discharging from the pipes 8 may be directed into the space above the glass surface within the duct 1.  In a further embodiment the cooling element used has a concave underside corresponding to the curvature of the roof 5 of the duct 1 on which it is placed directly and sealed with cement. In a final embodiment, Fig. 8, an air distributing pipe 26 has openings 27 directed towards the roof 5.  The pipe 26 comprises two concentric tubes 28 and 29, Figs. 9 and 10, mounted one within the other.  The effective size of the openings 27 is controlled by rotation of the inner tube 29 by means of a handle 36. The rectangular openings 27 may be offset relatively to one another and they may also be of circular shape.
Patent GB-858182-A (GB)
Title: Improvements in or relating to machines for the chemical cleaning of textile articles
IPC: D06F58/02
Filed: 1958-08-08
Abstract: 858,182. Drying apparatus. BOEHLER, M., and WEBER, F., [trading as BOEHLER & WEBER KOMM.-GES.]. Aug. 8, 1958 [June 4, 1958], No. 25448/58. Addition to 857,445. Class 34(2) The coniform deflecting surface for drying air formed by the frame of the charging door in the apparatus of the parent Specification is here modified to take the form of an undulating surface or raised shoulder 8<SP>1</SP> (see Fig. 1); as a result the drying air issuing from branch pipe 6 is deflected outwardly from the axial line of drum 1 towards the periphery, instead of only being deflected axially into the drum, thereby preventing losses by splashing. In the embodiment illustrated in Figs. 1 and 5, two branch pipes 6 and 6a are shown. The air issuing from pipe 6 passes through the system of slots 12 described in the parent Specification, but this system may be replaced by extending the branch pipe, as with pipe 6a, to a point closer to the deflecting surface 8<SP>1</SP> and building flange 21 so as nearly to meet pipe 6a. As shown in Fig. 9 the deflecting surfaces or depressions 19 are so arranged that as the drum rotates, carrying the articles being cleaned in a clockwise direction the air issuing from branch pipes 6, 6a meets the articles at the start of their fall, it then being easier to tumble the articles. In Fig. 6, a further embodiment is shown, wherein by means of valve 24, solvent through pipe 5a and branch 6a or drying air, through pipe 5 and branch 6 may both be supplied to the drum, axially through common branch pipe 6<SP>1</SP>, and radially.
Patent GB-462729-A (GB)
Title: Improvements in current control arrangements for electric spot-welding machines
IPC: B23K11/24
Filed: 1935-09-13
Abstract: 462,729. Actuation of switches for spot-welding. BRITISH THOMSONHOUSTON CO., Ltd. Sept. 13, 1935, No. 25463. Convention date, Sept. 13, 1934. [Class 38 (v)] [Also in Group XXII] The current to a spot-welding machine is switched on when the electrodes are applied to the work and exert a certain pressure thereon and is switched off when the pressure reaches a still higher amount. The electrodes 1 move in guides 19 and are carried by a rod 2 screw-threaded at 3 and moving in a nut 4 that moves rotarily with but can slide longitudinally in a worm wheel 6 driven by a worm 7 driven by a motor. When the motor is started, the consequent rotation of the nut 4 must cause either the descent of the rod 2 or the ascent of the nut, which is supported by a ball bearing 8 on a plunger 9 controlled by a spring 11. The spring 11 prevents the ascent of the nut until the downward movement of the rod 2 brings the electrodes 1 into engagement with the work. Thereafter the nut 4 rises and compresses the spring 11, the compression of the spring giving the measure of the pressure of the electrodes on the work. An arm 14 fixed to the plunger 9 is thus moved upwards and two projecting portions of it 15, 16 successively close and open respectively two switches 17, 18 connected in series in the welding circuit. The opening of the switch 17 may also reverse the motor and return the electrodes to their original position.