baber/WOPTO huggingface dataset:
Patent GB-1032205-A (GB)
Title: Improvements in or relating to the concentration of phosphoric acid
Inventor: HARRIS FREDERICK JOHN
IPC: C01B25/234
Filed: 1963-10-24
Abstract: An aqueous solution of phosphoric acid is concentrated by removal of water by employing a dessicant comprising an aqueous solution of sulphuric acid to withdraw water vapour from an atmosphere in immediate contact with the phosphoric acid solution, the heat generated in the desiccant being transferred to the phosphoric acid solution.  Preferably, there are simultaneous mass transfers of water from a film formed from the phosphoric acid solution to the gaseous medium, and from the gaseous medium to a film formed from the sulphuric acid solution desiccant, the heat generated in the desiccant film by absorption of water being transferred to the phosphoric acid solution.  Preferably, the resulting concentrated film of phosphoric acid is returned to the phosphoric acid solution from which fresh films are repeatedly formed, concentrated and returned thereto until the desired degree of concentration is obtained, and the resulting hydrated film of desiccant is returned to the sulphuric acid solution from which fresh films are repeatedly formed, hydrated and returned thereto.  The process may be carried out on a batch principle by exposing surfaces of the phosphoric acid solution and desiccant to a common atmosphere within a vessel and providing means of transferring the heat evolved by absorption of water vapour in the desiccant to the phosphoric acid solution; alternatively, the phosphoric acid solution and desiccant may be caused to flow through apparatus in which freshly formed films of the two acids are simultaneously and continuously exposed in a common atmosphere to permit mass transfer of water from the phosphoric acid film to the sulphuric acid film, the acids flowing in such manner that there is good thermal contact between the acids, and the phosphoric acid solution being introduced into the apparatus preferably at above ambient temperature.  The sulphuric acid solution contains preferably at least 70%, advantageously more than 90%, by weight acid. The phosphoric acid solution may be that prepared in the "wet process," and more particularly the solution which has been derived by leaching phosphate rock with the diluted sulphuric acid resulting from the above concentration process.  The concentration of phosphoric acid solutions is exemplified using two forms of apparatus which are described and illustrated.
Patent GB-968778-A (GB)
Title: Improvements relating to rolling mill stands
IPC: B21B31/30
Filed: 1962-11-07
Abstract: 968,778. Rolling. GENERAL DYNAMICS CORPORATION. Nov. 7, 1962 [Nov. 7, 1961], No. 42113/62. Heading B3M. ' A rolling mill includes a fluid operated adjusting wedge situated between the mill frame and one working roll, the wedge being provided on at least one of its working surface with a layer of antifriction material, and being actuated in response to a control signal representing some characteristics of the material being rolled to vary the rolling pressure in order to keep the thickness of the rolled material constant. Information from a temperature gauge 19, tension gauges 22 and 23, a thickness gauge 24, suitably of a beta- or X-ray type, and a tachometer 26 are fed to a force computer 20 having also input terminals 29-33 for rolling constants, and a value of the required force to be exerted by a back-up roll 13 is computed. This value is compared with the actual force measured by a gauge 28 and the necessary adjustment is made. The resulting strip thickness is measured by a gauge 25 and compared with the desired thickness, and any adjustment that may be necessary is fed through a filter 36 to the computer. A delay device 38 ensures that connections to the thickness of the strip measured by gauge 24 are made precisely as that portion of the strip passes between the rolls. The adjusting wedge 42 which forms a linear hydraulic actuator is coated at 49 with a material having fibres of polytetrafluoroethylene interwoven with fibres of cotton or glass, for example. Movement of the wedge to the right moves a roll chock 43 downwardly with respect to the roll housing 10a.
Patent GB-1135996-A (GB)
Title: Ring laser
Inventor: HOLMBOE LEONHARD WILFORD
IPC: H01S3/083
Filed: 1967-09-15
Abstract: 1,135,996. Lasers. SPERRY RAND CORP. 15 Sept., 1967 [20 Sept., 1966], No. 42199/67. Heading H1C. Mode locking of the two oppositely propagated beams in a ring laser is prevented by frequency modulating one only of the beams. As shown in Fig. 1 a helium-neon gas tube 2 with Brewster windows 9, 10 is located in a ring resonator formed by reflectors 3-6, two "Pockel's effect " electro-optic modulators being located in the ring and spaced apart by one quarter of the total circumference L. One modulator is energized directly from an oscillator 11 and the other is energized with 90 degrees phase delay through a delay network 12. The oscillator frequency is approximately equal to the spectral free range frequency of the resonator, viz. c/L. The two modulators 7 and 8 produce a cumulative frequency modulating effect on the counterclockwise rotating light beam, whereas the nett effect of the two modulators on the frequency of the clockwise rotating beam is zero. The two beams are extracted at partially transmitting mirror 3, and are heterodyned together by mirrors 19, 20, 21 and a photodetector 22, rotation of the ring laser generating a beat note of frequency deter. mined by the angular velocity. In a modification, Fig. 3, the modulators and two of the corner mirrors are combined, each corner member 23, 24 comprising an electro-optic material to which the modulating signal is applied. The corner members 23, 24 are spaced by L/4 and have Brewster's angle faces 25, 26 relative to the optical path axes 27, 28.
Patent GB-1180560-A (GB)
Title: Improvements in or relating to apparatus for Throwing Dice
Inventor: CARTER EDWARD OSWALD
IPC: A63F3/02
Filed: 1966-10-23
Abstract: 1,180,560. Automated dice-throwing apparatus. MAYFIELD ELECTRONICS Ltd. 23 Jan., 1968 [23 Oct., 1966], No. 42434/66. Heading A6H. An indoor game apparatus comprises a pair of dice, 13, which are contained in a cage, 14, large enough to permit their individual rotation relative thereto, a motor, 21, for intermittently rotating said cage, means, 11, permitting insertion into the apparatus of coins representing players' stakes, and pay-out means, 12, operative each time said cage comes to rest whereby the winnings (if any) of a player who inserted a coin during the last preceding pause of said cage are automatically delivered to such player in an amount depending upon the final reading of the dice. The recognition of the dice reading and the appropriate actuation of the pay-out means may be effected electronically, each of the dice containing a battery-powered oscillator whereby, on halting of the cage, a signal is radiated, at a frequency depending on whichever face of such dice happens to be uppermost, which may be picked up by a closed looped aerial, 27, disposed concentric with whichever happens to be the lower end of the cage and connected to a read-out system controlling said pay-out means. During each pause of the cage an oscillator may be automatically energised to re-charge the batteries in the dice through the medium of a second closed loop aerial, 32, disposed similarly to the first.
Patent GB-1086092-A (GB)
Title: Data record and method of manufacture
IPC: G06K19/06
Filed: 1964-10-19
Abstract: 1,086,092. Records. SVENSKA DATAREGISTER A.B. Oct. 19, 1964 [Nov. 5, 1963], No. 42488/64. Heading G4M. A sales tag is provided with a self-clocking binary code in the form of regularly alternating light reflective and non-reflective areas, the width of one type of area being varied in accordance with the code. For example, a binary " one " may be represented by a non-reflective area of the same width as the reflective areas, and a binary " zero " by a non-reflective area of half that width. Portions III-VI are used for recording decimal digits, portion II for a parity bit and portion I for a start code. The length of each code area is about ten times its width so that scanning, e.g. by a hand-held " pen " may take place along a line which is substantially skewed with respect to the median line of the tag. The effective area of the scanning aperture is not greater than the greatest width of the code areas. An amplitude discriminating device coupled to the scanner enters the " one " bits in a shift register end provides shift pulses.
Patent GB-1527278-A (GB)
Title: Apparatus for transferring a deformable cylindrical work piece from one work station to another
IPC: A61F13/20
Filed: 1976-10-13
Abstract: 1527278 Rotary conveyers DR CARL HAHN GmbH 13 Oct 1976 [15 Oct 1975] 42542/76 Heading B8A An apparatus for receiving a cylindrical workpiece, e.g. a tampon from a first station (Fig. 2) by axial displacement of said piece and for axially displacing said piece into a second station (Fig. 3), comprises a transfer element 21 extending substantially in one main plane, movable in said plane, and having a plurality of openings 78 theretheough, the openings having an inner perimeter; bushes 22 for receiving the workpiece, mounted within said openings for movement with the transfer element 21 and with their axes transverse to said main plane; means for moving each of the bushes 22 into approximate axial alignment with said first station for receiving a workpiece, and for moving the bushes into an approximate axial alignment with the second station (Fig. 4) for discharging the workpiece; the bushes being floatingly mounted within said openings so as to be able to move in both the axial and radial direction to compensate for errors in said alignment.
Patent GB-946815-A (GB)
Title: Harmonic inertia snubber
IPC: B41J19/04
Filed: 1961-11-29
Abstract: 946,815. Inertia brakes. SPERRY RAND CORPORATION. Nov. 29, 1961 [Nov. 30, 1960], No. 42744/61. Heading F2E. Means for retarding smoothly a moving member 10 comprises an annulus 12 in its path supported by a pin 13 ; as the centre of the annulus rises, the rate at which energy is extracted from the moving member increases as the sine of the angle of rotation of the centre of gravity of the annulus about the pin, i.e. harmonically. By suitable choice of dimensions the energy of the moving member 10 may be reduced smoothly to zero. In a modification the moving member 17A, Fig. 4, has a vertical path and the annulus 15 is constrained against the pin 17 by a spring 16 adjustable at 19 and forming a gravity substitute, or by a counterbalance; if a spring is used the reduction in energy will not be harmonic. In a modification, Fig. 5 (not shown), a leaf spring secured to the pin may be used.
Patent GB-1376104-A (GB)
Title: Apparatus for measuring the dynamic viscoelastic properties of  liquid or solid materials
IPC: G01N11/16
Filed: 1970-09-08
Abstract: 1376104 Measuring visco-elastic properties NATIONAL RESEARCH DEVELOPMENT CORP 7 Dec 1971 [8 Sept 1970] 42962/70 Heading G1S Apperatus for measuring the dynamic viscoelastic properties of a liquid or solid material comprises upper and lower platens 2, 1 spaced to contain a sample to be measured, means for applying a high-frequency sinusoidal rotational oscillation to the lower platen 1, which is supported by at least one torsion member 7 and means for measuring the frequency and amplitude of movement of each platen, and the phase difference between the oscillations of the platens. In the illustrated embodiment the lower platen 1 is carried by a holder 8 supported by leaf springs 7, 11 secured respectively to a crosspiece 5 and base 4 of a framework 3. An electromagnet 16 oscillates a coil 17 secured to the holder 8 and resulting movements of the platen 1 are detected by a capacitance transducer which applies a signal to a digital voltmeter. The values of the frequency, phase, and amplitude of the movements imparted to the platen 2 are measured by known means from which values the visco-elastic properties of the sample are determined.
Patent GB-986986-A (GB)
Title: Carriage for doffing and donning device
IPC: D01H9/10
Filed: 1962-11-14
Abstract: 986,986. Donning and doffing apparatus. WILLCOX & GIBBS SEWING MACHINE CO. Ltd. Nov. 14, 1962 [Nov. 15, 1961], No. 43023/62. Heading D1D. [Also in Division B7] A carriage for a donning and doffing device adapted to move on horizontal rails along a side of a spinning &c. machine, comprises a frame having rail-engaging rollers, a sub-frame having floor wheels, means connecting the frame and subframe which includes means for raising the rollers above the rail, and means for controlling the lift-means including controllers engaging the rail when the rollers are above the rail for automatically causing the rollers to descend to a position where the carriage is supported on the rail for movement therealong. In Fig. 2, the carriage having doffing-means 19, donning-means 21a and a container 20 for doffed bobbins, which can be withdrawn from the side of the carriage, comprises a frame 22 with rollers 23, 24 to run on and support the carriage on a rail 14 and guide-rollers 25, 26 to engage a lower rail 15. The sub-frame comprises a crossmember 28 at each end of the carriage each carrying a pair of floor-wheels 29 and each connected to a piston-rod 33 working in a piston 31 connected to the main frame 22. The cylinders are arranged as shown in Fig. 4; when a pump P is manually operated by a handle 36, Fig. 2, pressurefluid enters the first cylinder so that both cylinders rise, taking the frame 22 with them and raising the rollers 23, 24 above the level of rail 14. The carriage is now wheeled by handle H into a position parallel with the machine with the rollers above the rail, whereupon plungers 39, 40 of valves 37, 38 are actuated by contact with the rail to vent the cylinders for the rollers to descend to rest on the rail. In Fig. 5, where the container for doffed bobbins can be withdrawn rearwardly, the main frame 301 has a base 303 and the sub-frame comprises two cross-members 309 carrying the floor wheels and each connected to the base by bellcranks 312, the short arms of which are pivoted to piston-rods 313 working in cylinders 314 connected to the base 303. When these are charged, the members 309 are drawn inwardly to raise the main-frame. The cylinders are arranged as in Fig. 7; when the carriage is wheeled into parallel relationship with the machine, valves 320, 321 are opened as members 324 on the main frame engage the rail to vent the cylinders and cause the main frame to be lowered so that the rollers 315, 316 rest on the rail. A valve 323 such as to be operated by one of the members 324 after the valves 320, 321, serves to interrupt the connection between the cylinders so that the floor wheels can move independently over irregularities in the floor. The return circuit of the cylinders can be closed by a valve 322 to allow the cylinders to be energized to raise the frame and permit the carriage to be wheeled away from the frame. Specification 986,987 is referred to.
Patent GB-872035-A (GB)
Title: Axial-type hydrodynamic device suitable for use as a pump
IPC: F04B1/20
Filed: 1959-12-21
Abstract: 872,035. Swash-plate pumps. BENDIX CORPORATION. Dec. 21, 1959 [Dec. 29, 1958], No. 43385/59. Class 103(1). In a rotating cylinder block swash-plate pump the cylinder block B, Fig. 1, bears against slipper members 108, which are mounted on the end of the housing through swivel joints 112. An arcuate valve plate F is provided having a crescent-shaped opening 34 which communicates with the outlet 54 through passages in two piston members.118, 120 and drillings 50, 52. The dimensions of the valve plate surface and of the pistons 118, 120 are such that the delivery pressure acting on the pistons urges the plate into contact with the cylinder block, and springs 138, 140 may be used to provide the initial loading. As shown in Fig. 3,.the valve plate F is preferably also located by two of the slipper members 108, 110 such that the line joining the axis of these members passes through the drilling 50. A groove 46 is preferably provided to throttle any surge of pressure at the beginning of the discharge stroke of the pistons. The angle of the swash-plate is variable in accordance with the delivery pressure.
Patent GB-877205-A (GB)
Title: Weaving of twisted warp fabrics
IPC: D03C7/00
Filed: 1959-12-21
Abstract: 877,205. Lens healds. SULZER FRERES S. A. Dec. 21, 1959 [Dec. 22, 1958], No. 43410/59. Class 142(2) The arms 29 of a doup heald 13 pass between the shafts of the lifting healds 11, 12. The arms 29 may be bent together to operate from one spring loaded shaft or (Fig. 5) may be arranged on two shafts 41 and be connected by a yoke 46 to a springy loaded rod 47.
Patent GB-1184625-A (GB)
Title: A Device for Mixing, Stirring, or Kneading, one or more Substances.
IPC: B01F7/30
Filed: 1968-09-12
Abstract: 1,184,625. Mixing apparatus. NAUTAMIX PATENT A.G. 12 Sept., 1968 [12 Sept., 1967], No. 43432/68. Heading. B1C. A mixer has a rotatable central column 20 carrying at least one fixed hollow arm 11 the outer end 12 of which supports a mixing screw 15 rotatable on its own axis by shafts 21, 18 and bevel gearing. The column 2 is axially located by a bearing block 6 which supports the whole weight of the assembly. Driving means (not depicted) for the shafts 2, 21 are located in housings 10, 22 which are movable relative to the vessel, being restrained as by a reaction rod 23 or resilient pad 27. The column 2 and screws 15 are axially restrained by their upper bearings only. (For Figure see next page)
Patent GB-1014779-A (GB)
Title: Improvements in or relating to radiation detectors
Inventor: STEELE DONALD FRANCIS
IPC: G01J5/08
Filed: 1962-11-16
Abstract: 1,014,779. Photo-electric flame sensing apparatus. AMERICAN PYROTECTORS Inc. Nov. 16, 1962, No. 43489/62. Heading G1A. A flame or radiation detection device comprises a radiation detector unit remote from the location under surveillance and a light-conducting cable composed of a plurality of light guiding fibres enabling the detector unit to view the said location. Figure 1 shows the light conducting cable 22 protected by a sheath 50 and extending from a detector unit 26 to a receiving end 38 secured in a suitable wall 42 of the compartment to be viewed. If desired the cable 22 may be made flexible and the member 42 be a bracket associated with a scanning device. It is preferred to intermingle the fibres in the cable 22 so that if only a portion of the end 38 is irradiated the radiation is spread substantially evenly over the whole of the detector surface. The end 38 of the cable may be protected from damage by excessive heat by the use of a solid end section of quartz or heat-resistant glass. As described the detector unit includes two radiation sensitive resistors b and r where r has its maximum sensitivity at a wavelength of 0. 9 microns and b its main response in the visible region and a negative response to infra-red radiation. The resistors are connected in series and the potential at their junction used to control a relay associated with a warming lamp 30 or audible alarm. By choosing the resistors with response curves as mentioned spurious operation of the device by a rise in the ambient temperature or light intensity is prevented. Adjustment may be made by movement of the resistor mounting relative to the end of the cable 22 (Fig. 7, not shown).
Patent GB-1514345-A (GB)
Title: Gear coupling
IPC: F16D3/72
Filed: 1975-10-23
Abstract: 1514345 Universal joints W H ALLEN SONS & CO Ltd 18 Oct 1976 [23 Oct 1975] 43666/75 Heading F2U A flexible coupling for connecting rotary shafts 1, 2 or mounting the reaction ring in an epicyclic gear comprises a flat flexible ring 6 which is either integral with one component to be coupled or fixed against angular movement on that component at one of its inner or outer peripheries and connected by teeth on its other periphery to the other component. As shown, the flexible ring 6 has teeth 7, 8 on both its peripheries and is secured by two spring rings 9, 10 to allow flexing as illustrated in Figs. 5 and 6 (not shown). Three individual rings may be stacked together, Fig. la (not shown) or two rings may be bolted together at their outer peripheries and engage the two rotary shafts by the teeth on their inner peripheries, Fig. 3 (not shown).
Patent GB-1477027-A (GB)
Title: Automatic assembly apparatus for supplying leadless electronic parts to printed circuit boards
IPC: H05K13/02
Filed: 1974-10-09
Abstract: 1477027 Feeding electronic components SONY CORP 9 Oct 1974 [15 Oct 1973] 43738/74 Heading B8S In apparatus for feeding electronic components 1 and comprising a fixed member in which is formed a component supplying aperture, and a movable member in which is formed a transfer aperture the mouth of which is in sliding contact with the fixed member and which can be aligned with the supply aperture to receive a component therefrom, the depth of the transfer aperture is greater than the maximum component-length whilst the mouth of the transfer aperture is enlarged by a recess having a depth such that the reduced depth of the remaining portion of the transfer aperture is less than the minimum component-length. This enables the apparatus to cope with fluctuations in the component-lengths without jamming. In Figs. 5 and 6, a movable member 11 is sandwiched between fixed members 8, 9 and contains transfer bores 28 which can be aligned either with supply apertures 12a or with discharge apertures 12b, the mouth of the bores 28 being enlarged by recesses 30. In Fig. 13A, the apertures 12a, 12b are formed in a cylindrical fixed member 42 in which is rotatably housed a member 43 having a transfer bore 45 the mouth of which is enlarged by a recess 47. When discharged through the apertures 12b the components are fed to enlarged pockets 34 closed by a support plate 36, the components standing upright on the plate 36 at one end of the pockets. The plate is moved in a direction C and the pockets are moved in a direction D to cause the components to lie on the plate, which is then withdrawn to pass the components to a circuit board.
Patent GB-1274075-A (GB)
Title: Improvements in or relating to dispensing taps
Inventor: KEMPE LAURIE BURDETT
IPC: F16K23/00
Filed: 1969-09-08
Abstract: 1,274,075. Valves. L. B. KEMPE. 8 Sept., 1969, No. 44252/69. Heading F2V. A dispensing tap comprises a hollow body 2 including an inlet 6, an outlet 7 and a valve mem- 14, and a slidable member 12 one end of which is engageable by a handle 8, the other end operating the valve member 14. A cam surface 10 is provided on the end of the handle to act on the end surface 11 of the slidable member 12. The valve member 14 is slidable along passage 5 but is spaced therefrom by projections 19. In operation, the handle is pivoted about pin 9 to lift the valve member off the seat. The end 16 of the slidable member seals the bore 27. On release of the handle, the valve member 14 closes and air is drawn in via apertures 17, 24 to allow the liquid to drain.
Patent GB-1405705-A (GB)
Title: Candle
IPC: F23Q25/00
Filed: 1973-09-21
Abstract: 1405705 Candles H THIELE 21 Sept 1973 [22 Sept 1972] 44329/73 Heading C5W [Also in Division F4] A candle comprises a wick 1, a solid fuel material 2 which becomes liquid when heated surrounding the wick, and one or more cavities 3 in the fuel material in the vicinity of the wick, the or each cavity containing an extinguishing agent. The agent may be a liquid, e.g. water, and may have fragrance additives. The extinguishing agent may be contained in an ampoule rendered permeable thereto on heating, e.g. by burning or melting. The ampoule(s) may be of polyethylene, the wick of cotton and the fuel of a paraffin-stearine wax mixture. The cavity or cavities may be annular and the ampoule(s) may be adhered to the wick. The or each cavity may have an aperture for removal of extinguish- .ing agent and provided with a removable seal 4 allowing one or more extinguishing points to be omitted.