baber/WOPTO huggingface dataset:
Patent GB-484392-A (GB)
Title: Improvements in projection screen construction
IPC: G03B21/58
Filed: 1937-12-10
Abstract: 484,392. Projection screens. TURNER, E. G. Dec. 10, 1937, No. 34240. [Class 97 (i)] In screens carried, at the top, by a roller, and, at the bottom, by a batten, both entering slotted holes in side stretchers, the side stretchers are provided with auxiliary means for tensioning the screen. The auxiliary means comprises a screw 2, carried by a plate A secured to the stretcher, and carrying a dished washer 3 bearing on the batten. The screw has flats engaging the edges of a hole in a flange of the plate A, to prevent the screw from turning, and is moved downwards by turning a nut 4 threaded on it.
Patent GB-1329514-A (GB)
Title: Transporting and firing chest for self-propelled projectiles
IPC: F41F3/045
Filed: 1971-07-22
Abstract: 1329514 Latch fastenings SARMAC SA 22 July 1971 [6 Aug 1970] 34378/71 Heading E2A [Also in Division F3] A pawl 25 for automatically engaging a catch 24 is releasable by means of a lever 26.
Patent GB-306652-A (GB)
Title: An improved showcard
IPC: G09F13/14
Filed: 1927-12-19
Abstract: 306,652. Lindsey, G. Dec. 19, 1927. Signs. - A collapsable showcard of the kind formed from a single sheet of cardboard &c. and having an inclined rear reflector and a front display face has end walls provided with tongue-like extensions adapted to engage in slots in the display face to hold the parts in the extended or display position. A sheet of cardboard &c. a is stamped or cut as shown in Fig. 1 so as to form a display front f and a rear wall g having end wadls h with tongue-like extensions h<1> which are inserted'through slots i, Fig. 2, in the display front and secured by their bent edges h<2>. The rear wall is provided with a metal foil or other reflective covering and may be perforated for rearward illumination. The device may be suspended by cords passing through apertures j in the end walls or be provided with a rear strut or with a sucker k at the front for attachment to a window &c.
Patent GB-1361275-A (GB)
Title: Diameter measuring device
IPC: B24B49/04
Filed: 1971-07-22
Abstract: 1361275 Measuring diameters A RAITERI 22 July 1971 [22 July 1970] 34393/71 Heading G1M By moving a pivoted handle 9, Fig. 2, in the direction a a cam 17 is caused to depress a pivoted lever 16 and a rod 32 carrying a feeler 8. At the same time a cam 18 causes a lever 21 to rotate clockwise to raise a collar 23 so that balls 25 are disengaged from the conical internal surface of the collar and the rod 24 released and lowered by the action of cam 19. The rod 24 slides a body 5 down a fixed bar 26 so that stop 6 is lowered, and the stop 7 is also lowered and retracted by the action of pins 27, 29 on the bar 26 and rod 30 respectively engaging the slots in a pivoted lever 28. As the stop 6 and feeler 8 are opened to accommodate a circle of increasing size the stop 7 remains on the circle circumference and at 90 degrees to 6 and 8. The whole measuring device 3, Fig.1, is positioned with a handgrip 31 by moving the device around a pin 11 and it may be raised by means of a lever 12 rotating about a pin 13. When a workpiece is to be measured the lever 9 is rotated in the direction of arrow b to bring 6, 7 and 8 into contact with the workpiece in the following manner. Cam 19 rotates clockwise allowing rod 24 to move upwards and bring 6 and 7 into contact with the workpiece. Cam 18 causes lever 21 to rotate anti-clockwise, lowering the collar 23 and locking the rod 24 by means of the balls 25. Cam 17 allows lever 16 to rotate in an anticlockwise direction so that 8 is only held against the workpiece by the spring 15. By rotation of the workpiece movement of 8 will operate electrical measurement transducers indicating variation in diameter. The stop 6 exerts the pressure it receives from a balancing spring 14 whereas the feeler 8 presses on the workpiece with the force provided by spring 15.
Patent GB-884949-A (GB)
Title: Improvements in or relating to pipe joints
IPC: F16L19/028
Filed: 1959-10-10
Abstract: 884,949. Pipe joints. LANCASTER, F. Oct. 10, 1960 [Oct,. 10, 1959 ; May 20, 1960], Nos. 34428/59 and 17803/60. Class 99 (1). A sleeve 14 of hard material such as brass is secured on a lead pipe 12 by soldering and a union member 28 is adapted to enter the protruding end of the pipe so that when the sleeve 14 and the member 28 are drawn together, e.g. by a flanged nut 36, the protruding end of the pipe is deformed outwardly and clamped between the sleeve 14 and member 28. The ends of the sleeve 14 and member 28 are respectively convex and concave in crosssection. The internal surface of the sleeve 14 is partly tapered to fit over the tapered end of the pipe 12 and partly cylindrical to provide between the pipe and the sleeve a space 20 which is filled by solder fed through a hole 24. The member 28 has a cylindrical portion 42 which is engaged by a cylindrical bore of the nut for proper location of the latter. Specifications 740,717 and 884,950 are referred to.
Patent GB-1315774-A (GB)
Title: Wiper
IPC: A47L13/60
Filed: 1971-07-22
Abstract: 1315774 Floor drying appliances CHAO YAU SHIENG 22 July 1971 [25 July 1970] 34484/71 Heading A4F A floor drying appliance comprises an endless belt 1 of absorbent material eg. cloth, or rubber or plastics sponge, mounted on at least three rollers 7, 18, 19 in a framework 4 provided with a rod-like handle 5d, a floor wiping area of the belt being defined between two rollers 18, 19, means for advancing the belt 1 to replace the wiping area after use by others in succession, and means for shifting the roller 7 to slacken the belt 1 to facilitate its removal from the framework 4. Roller keying mechanism Figs. 7 to 9, (not shown) is operable by a lever (21a) to advance the endless belt 1 by a length equal to the distance between the rollers 18, 19 to replace a wiping area by another; and actuation of a lever 11 pulls downwardly a support 6 carrying the roller 7 for slackening the belt 1 when it is to be removed. Apparatus for cleaning the belt 1 whilst it is in the appliance comprises a vessel 32 for cleaning liquid and containing cylindrical rollers 32f, 32g, and a roller 32h of non-circular section, the appliance being positioned so that the belt is squeezed between the roller 18 and the rollers 32f, 32g, and 32h whilst being advanced by a handle 34b Fig.12, (not shown) drivingly engageable with the roller 18. Various alternative cross sections of the roller 32h are illustrated in Figs.15(a) to 15(c) (not shown).
Patent GB-1081418-A (GB)
Title: A device for spinning yarns by means of a ring spinning frame and spinning bobbins
IPC: D01H7/16
Filed: 1964-08-24
Abstract: 1,081,418. Bobbins. MACHINEFABRIEK M. BROUWER & CO. Ltd. Aug. 24, 1964 [Aug. 22, 1963], No. 34499/64. Heading B8M. [Also in Division D1] Protrusions 3 are formed on. the lower end of a ring frame package tube 1 so that when placed on a supporting flange a yarn is unlikely to be caught and severed between the tube and flange. The protrusions are formed on a reinforcing ring 2.
Patent GB-375696-A (GB)
Title: Improvements in or relating to leads or sinkers for use in angling
IPC: A01K95/00
Filed: 1931-12-12
Abstract: 375,696. Fishing leads. HARDY BROS. (ALNWICK), Ltd., London & North British Works, Alnwick, Northumberland, and HARRIS, C., Glenthorne, Greenfield Road, Whitchurch, Glamorgan. Dec. 12, 1931, No. 34514. [Class 48.] Leads comprise a rubber tube a over which is threaded a number of cylindrical lead weights g which are maintained in position by bent wire members h. To prevent rolling the members h may be bent through 45‹ only or the weights may be formed with wings k. The lead is connected to the line by binding the end of the tube to a wire loop c.
Patent GB-939615-A (GB)
Title: A cable drum for the current supply cable of an electrically driven movable machine
IPC: H02G11/02
Filed: 1962-09-10
Abstract: 939,615. Cable drums. U. PASSAVANT, and P. SCHRAMM, [trading as PASSAVANTWERKE]. Sept. 10, 1962 [Sept. 9, 1961], No. 34560/62. Class 99(2). A cable drum 4, for the supply cable of an electrically operated movable machine, is mounted on a shaft 5 connected to a support arm 9 which is mounted on the machine and which extends parallel to the shaft 5 and is staggered relatively thereto. The arm 9 is clamped against the edges of a U-shaped member 1 by shackles 11 but can be adjusted rotatably so as to vary the height of the drum 4 on the machine, and also adjusted axially. The drum 4 is rotated on its shaft 5 by a chain 6 from a chain wheel 8 connected to one of the wheels 2 on which the machine runs or to the axle thereof, Inside the drum is a known system of slip rings and brushes.
Patent GB-996910-A (GB)
Title: Improvements in anti-ballooning devices for ring spinning or twisting frames
Inventor: TAYLOR JOHN SIM MURRAY
IPC: D01H7/18
Filed: 1961-09-27
Abstract: An anti-ballooning device for a ring spinning or twisting machine comprises a cap adapted to fit to a bobbin or other tubular yarn-carrying member supported by a spindle, the cap having projections thereon which in operation engage the yarn in its travel from the usual thread guide to the traveller.  The yarn is carried partly around the spindle or bobbin by one projection, becomes disengaged therefrom and almost immediately reengaged by the following projection so that the yarn is formed into a helix around the spindle or bobbin and thus prevented from ballooning. The projection may take the form of flutes or grooves in the lateral surface of the cap or of transverse members extending across and secured to the hollow cap member.
Patent GB-1470522-A (GB)
Title: Railway bogies
IPC: B61F5/04
Filed: 1974-07-19
Abstract: 1470522 Bolster connections ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 19 July 1974 [23 July 1973] 34935/73 Heading B7L A railway bogie comprises a frame 1, 2 supporting a traction bolster 12 by pivoted links 20 and a second bolster 11 supported indirectly from the frame by springs 13 and dampers 14, the second bolster having a depending blade 15 engaging a slot 16 in the traction bolster whereby relative movement between the bolsters is confined to a transverse vertical plane. Links 23 between arms 24, 25 fast with bolsters 12, 11, respectively, prevent relative movement between the bolsters in the longitudinal direction. The blade 15 and slot 16 are provided with renewable wear surfaces 17, 18. As shown in Fig. 2, the resilient coupling 13, 14 is provided between the bolsters 11, 12. In an alternative arrangement, Fig. 5 (not shown), two platforms carried from the frame by pivoted links support the lower ends of dampers 14, the upper ends being secured to the bolster 11, the platforms being anchored to the bolster 11 by pivoted arms. A centre circular pivot member 5 is rotatably supported on bolster 11 by bearing surfaces 7, 8, 9. The bogie axles are each driven by a respective electric motor mounted inboard of the associated axle.
Patent GB-949668-A (GB)
Title: Improvements in or relating to the manufacture of diphenylolpropane
Inventor: JONG JAN IDE DE
IPC: C07C37/20
Filed: 1962-09-13
Abstract: Diphenylolpropane is obtained by the condensation of phenol and acetone in the presence of an acid catalyst and an organic diluent that is capable of forming with water and diphenylolpropane a system of liquid phases by heating to a temperature below the boiling point of the azeotrope of the organic diluent with water, said diluent being present in a proportion amounting to between 10 and 400% of the weight of the diphenylol propane to be obtained, and after completion of the reaction water is added to the reaction mixture in an amount of between 10 and 1000% of the weight of the diphenylolpropane, the mixture is heated until it is entirely liquefied, the acidic aqueous phase is separated off from the organic phase or phases, the organic part is almost completely neutralised in contact with water and is then cooled and the crystallized diphenylolpropane is collected. Residual organic diluent present in the separated diphenylolpropane may be removed therefrom by heating and/or steaming. Suitable solvents for use in the present process are aromatic hydrocarbons such as xylene and toluene, chlorinated hydrocarbons such as monochlorobenzene, 1, 2-dichloroethane and 1, 1, 2, 2-tetrachloroethane. Specifications 428,944 and 557,976 are referred to.
Patent GB-630839-A (GB)
Title: Improvements in and relating to compressors for process plants driven by waste gas turbines
IPC: F02C6/10
Filed: 1947-12-31
Abstract: <PICT:0630839/III/1> A plant for carrying out an exothermic chemical process, for example, an ammonia oxidation plant, is provided with compressed air or gas by a compressor coupled to a turbine driven by the hot waste gases of the process.  To meet variations in the quantity and heat content of the waste gases, air is taken from an intermediate stage of the compressor and mixed with the waste gases in front of the turbine.  The air or the mixture may be p  further heated by burning fuel in it, or it may be cooled before entering the turbine.  In the ammonia oxidation plant shown, the compressor is in three stages, the low and high-pressure stages 101, 110 are driven by a low-pressure turbine 113 and the intermediate stage 106 by a high-pressure turbine 114.  Air for the process is taken from the compressor 110 and passes through a heat-exchanger element 117 to a mixer 119.  Air and gaseous ammonia go to a converter 120 and the hot process products pass through heat-exchanger elements 121, 123, 124 and a condenser 125 to an absorber column 126.  Liquid nitric acid is drained to a cooler 129 which receives part of the high-pressure compressed-air through pipe 128.  The waste gases go by pipe 130 and exchanger elements 131, 133, 135, 137 to a valve 139 by which the gases can be directed through a combustion chamber 140 and a cooler 142, or a pipe 141, before entering the turbine 114.  Air is tapped from the intermediate stage compressor 106 and is led by a pipe 145 to join the waste gases in a pipe 132.  The temperature of the gases reaching the mixer 119 is controlled by the use of valved byepasses 150, 151, 152.  The exchanger elements 143, 144 take the turbine exhaust gases.  The valve 139 and a valve 148 controlling the supply of fuel to the combustion chamber 140 are operated together by a device 146 responsive to the pressure of the process air at 116. Non-return valves are shown at 116a and 130a.  In starting, a valve 155 in the high-pressure process line is closed, a valve 153 is opened to permit a small delivery from the stage 110 and a valve 154 is opened.  The compressor-turbine unit 114, 106 is driven by a motor 156 and the air is heated in the combustion chamber 140.  This brings the turbines into operation and both turbine compressor units run up to speed.  Valve 155 is then opened gradually and the process starts at a low pressure. Closing of the valve 154 causes the process pressure to rise and when it is greater than the delivery pressure of the compressor stage 106 the valve 130a opens to allow waste products to flow to the turbine.  When the delivery pressure of compressor stage 110 is adequate, the device 146 takes over the control.
Patent GB-844567-A (GB)
Title: Discharge controlling means for fluid medium under pressure
IPC: A62C13/00
Filed: 1958-10-31
Abstract: 844,567. Fire-extinguishing. SPECIALTIES DEVELOPMENT CORPORATION. Oct. 31, 1958 [Nov. 14, 1957], No. 35051/58. Class 47. [Also in Group XXIX]. Discharge controlling apparatus for a receptacle containing fluid under pressure, such as a fire extinguisher 10 comprises a spring loaded valve member 26 operated by a lever 15 and a trigger 19 and a valve locking device comprising a reciprocating rod 21 which is forced to the left to prevent downward movement of the lever 15 when the nozzle or horn 12 attached to the delivery hose 14 is housed in a bracket 20. The rod 21 is spring loaded to move to the right and disengage itself from the lever 15 when the nozzle 12 is withdrawn from the bracket 20. The valve member 26 may be also locked in the open position by moving the rod 21 to the left to frictionally engage the top surface of the lever 15 when this has been lowered to open the valve by actuating the trigger 19.
Patent GB-1293748-A (GB)
Title: A method of and apparatus for holographic recording
Inventor: WATERWORTH PETER
IPC: G11C13/04
Filed: 1970-07-20
Abstract: 1293748 Holography PLESSEY CO Ltd. 13 July 1971 [20 July 1970] 35119/70 Heading G2J  Binary information is recorded holographically by directing a collimated laser beam 2a on to a deflecting unit 7 which sequentially deflects the beam to at least some of a number of positions within a co-ordinate array, each position of which is representative of the position of a separate bit of information to be recorded, and imaging each of the deflected beams on to a major surface 8a of a hologram storage medium where each beam interferes with a collimated laser reference beam 10. The hologram is of a dot matrix the holograms being of the order of 0À5 mm. diameter. The laser beam 2, before it is split, passes a light modulator 3 in which its energy or phase angle is varied. The object beam 2a also passes a light modulator 6 before entering the deflector 7. Thus, for example, to obtain a binary "1" condition at any of the array positions the energy or phase angle of the object beam 2a is modulated at 6 such that the sum energies of the object and reference beam is equal to the energy for optimum exposure. For a binary '0' condition the sum energy is such as to be ineffective for hologram recording. If desired the deflector may cause beam 2a only to occupy a position where a binary "1" condition is required. The deflector 7 may be an acousticoptic, electro-optic or a mechanical arrangement. The record medium 8 may be moved between exposures.
Patent GB-1109217-A (GB)
Title: Method of producing prismatic balls of yarn and balls of yarn obtained by this method
IPC: B65H54/66
Filed: 1966-08-05
Abstract: 1,109,217. Balls of yarn. ETABLISSEMENTS HERVILLIER S.A. 5 Aug., 1966 [10 Sept., 1965], No. 36196/66. Heading B8M. [Also in Division D1] To form a ball of yarn having flat sides, a cylindrical sleeve 1, Fig. 2, having grooves or score lines 4 along at least three generatrices is used as a mandrel. After the yarn 3 has been wound on to the cylindrical sleeve 1, the package is squeezed in the direction indicated by the arrows to cause the sleeve 1 to fold about said grooves 4 and cause the package to have flat sides as shown in Fig. 3. The sleeve 1 is preferably formed with a V- notch at each end of each groove 4 and the sleeve 2 is supported on a collapsible mandrel whilst the package is being wound.
Patent GB-1498569-A (GB)
Title: Epoxy resin powder coating compositions
IPC: C09D163/02
Filed: 1976-08-24
Abstract: 1498569 Powder coating compositions W R GRACE & CO 24 Aug 1976 [8 Sept 1975] 35232/76 Headings C3B and C3P A particulate composition, having average particle diameter of 2-20 Á, comprises: (I) a solid epoxy resin having M.W. 500-12,000; (II) 1-15% by wt. of I of a curing agent; and (III) 0À5-3% by wt. of I of a liquid poly(ethyl acrylate) having a viscosity of 20,000-100,000 cp. at 50‹ C. I may be a diglycidyl ether of bisphenol A. II may be trimellitic anhydride. The composition may additionally contain 1-3% by wt. (based on the total composition) of silica.
Patent GB-1191066-A (GB)
Title: Improvements in or relating to Foam-Making Installations
IPC: B29B7/74
Filed: 1968-07-24
Abstract: 1,191,066. Mixing and aerating apparatus. TUNZINI AMELIORAIR. 24 July, 1968 [27 July, 1967; 2 July, 1968], No. 35261/68. Heading BIC. [Also in Division F4] A mixing and aerating machine for plasticsbased foams, comprises an annular mixing chamber 1a through which a pressurised mixture of air and a plastic passes from a delivery conduit 3a to an outlet conduit 6, the chamber being formed by coaxial respectively stationary and rotary walls 1b, 1c subjected to two separate cooling circuits. A common cold-generating unit 9 supplies cooled fluid to a pump 10 from which the cooling circuit of outer wall 1b is taken through a valved conduit 11 to a helicoidal duct 12a formed within the stationary outer wall 1b to flow. countercurrently to the mixture and to be recirculated to the unit 9, and the cooling circuit of the inner rotary. wall 1c is taken through a valved conduit 16 through the hollow rotor shaft 17 to a cooling passage 12b formed on the inside surface of the inner wall 1c to flow counter currently to the mixture and recirculation to the unit 9. Valves 15, 20 in conduits 11, 16 enable individual adjustment of the temperature of the walls despite the rotation of the mixture and below a predetermined figure at which the physical properties of the foam may be affected. The mixing chamber may have divergent, convergent and cylindrical sections, the relative positions of which differ in several embodiments and the wall 1c may have projections 8 thereon to enhance the foam-making process.
Patent GB-1426344-A (GB)
Title: Base  support assemblies for furniture
IPC: A47C7/00
Filed: 1973-07-24
Abstract: 1426344 Furniture joints DOERNER PRODUCTS CO Ltd 24 July 1973 [25 Oct 1972] 35262/73 Heading F2M In a sectional base for furniture comprising a plurality of identical legs 16 connectible to form a unitary structure and wherein each leg has a hub portion including a sector provided with stepped arcuate shoulders 20, 21 which sectors when assembled jointly form a hub having an axial bore therethrough, the assembled parts are interconnected by tapered locking rings 22, 24 located on the shoulders 20, 21 respectively and held in position by a flanged, screwthreaded tubular member 10, 12 and a nut 26.
Patent GB-903530-A (GB)
Title: A valve for metering the flow of molten metal
IPC: F16K25/04
Filed: 1960-10-17
Abstract: 903,530. Valves. DOW CHEMICAL CO. Oct. 17, 1960 [Nov. 2, 1959], No. 35524/60. Class 135. A valve device 10 for metering molten metal comprises an annular valve seat 18 having a frusto-conical seating surface 32 for the hemispherical end 22 of a valve spindle 24, characterized in that means are provided to form a semi-molten metal on the seating surface. The valve 10 which may be used in a die-casting process, comprises a body 26 having a sleeve 12 into which the seat member 18 is secured therein. The valve spindle 22 has lugs 27 for guiding it in the sleeve 12; the spindle and the seat may be of silicon carbides or metal borides or carbides. In order to provide the semimolten layer 40, Fig. 2, on the seating surface 32, a channel 34 is formed within the seat member 18 and connected by pipes 36, 38 with a cooling medium such as water. Heating elements 28 are also provided in the valve body 26 in order that the desired temperature of the seating surface, dependent upon the composition of the molten metal passing through the valve, may be obtained. Specification 780,920 is referred to.
Patent GB-360696-A (GB)
Title: Improvements in dogging mechanism, particularly for textile machines
IPC: B65H54/14
Filed: 1930-11-26
Abstract: 360,696. Dogging mechanism for cop winding-machines &c. MASCHINENFABRIK SCHWEITER AKT.-GES., Horgen, near Zurich, Switzerland. Nov. 26, 1930, No. 35635. Convention date, Jan. 17. [Class 120 (ii).] A dogging mechanism, permitting movement in one direction along a guide, particularly for textile spooling, winding, and spinning-machines &e. has, interposed between balls, rollers, wedges. &c. and the guide, a member, preferably comprising a resilient split ring 8, distributing the pressure o the balls &c. over a relatively large surface of the guide thus avoiding inequality of wear. The ring 8 is located in a recess in a sleeve 5 slidable on the guide-bar 2, the sleeve 5 and a conically bored sleeve 1 forming a cage for balls 4, a spring 6 tending to press apart the sleeve 5 and a collar 3 also slidable on the bar 2. The collar 3 carries a bracket 12 guided by a bar 11 and carrying a rotatable cone or feeler 13 coacting with the cop. A ring 7 on the sleeve 5 serves as a handle, the clutch being disengaged by sliding the sleeve 5, allowing the ring 8 to expand and be released from the bar 2.