baber/WOPTO huggingface dataset:
Patent GB-1078648-A (GB)
Title: Improvements in or relating to waterproofing paper, board and the like
Inventor: KOLKER MAURICE
IPC: D21H17/62
Filed: 1963-11-14
Abstract: Paper or like cellulosic material has water resistance and water repellency imparted to it by adding to the suspension of pulp during the paper-making process either after or preferably before the addition of an aluminium salt an aqueous emulsion having a pH between 7 and 8 and comprising as the disperse phase a wax and rosin mixture containing dissolved in it a water insoluble organic derivative of titanium or zirconium in which the metal atom is tetravalent and each of its valencies is directly attached to an alkoxy, hydroxyalkoxy or acyloxy radical, or a condensed form of such a derivative, the emulsion being stabilised by casein and alkali metal rosin soap. Preferably the emulsion and the alum are added at least 5 minutes before the pulp goes on to the wire or into the vat.  Examples relate to production of waterproofed chipboard from paper waste and of waterproofed kraft liner.ALSO:An aqueous emulsion having a pH between 7 and 8 comprises as disperse phase a wax and rosin mixture having dissolved in it a water insoluble organic derivative of titanium or zirconium in p  which each atom of titanium or zirconium is tetravalent and each of its valencies is directly attached to an alkoxy, hydroxyalkoxy or acyloxy radical or a condensed form of such a derivative, the emulsion being stabilised by casein and alkali metal rosin soap.  Preferred proportions as percentages by weight of the emulsion are:-total amount of wax + rosin, between 20% and 50%; titanium or zirconium derivative, between 0.01% and 1%; casein, between 1% and 2%.  The weight ratio of wax to rosin may be between 5:1 and 1:5.  Borax may be added as buffering agent. Examples relate to emulsions comprising:-(1), rosin, paraffin wax, casein, potassium hydroxide, butyl hexylene glycol titanate; (2), rosin, paraffin wax, casein, borax, butyl hexylene glycol titanate; (3) rosin, paraffin wax, casein, sodium hydroxide, tetra-butyl zirconate, 2-ethyl 1:3 hexane diol.
Patent GB-1447696-A (GB)
Title: Two cylinder concrete feed pump assembly
IPC: F04B7/00
Filed: 1974-10-17
Abstract: 1447696 Reciprocating pumps K SCHLECHT 17 Oct 1974 [17 Oct 1973] 45111/74 Heading F1A A concrete pump comprises two pumping cylinders 10 operated by hydraulic motor cylinders 11 and communicating with respective openings 2 in the bottom of a concrete-receiving hopper 1, a delivery pipe 20 being alternately connected to each opening 2 by a valve-member 3 comprising a pipe section sypported by a bearing 4 above the hopper and oscillatable by a hydraulic cylinder between positions in which its lower end registers with one of the openings 2. The bearing 4 includes a piston and cylinder arrangement connected to the motor cylinder supply for biasing the valve-member into engagement with the hopper bottom. In Figs. 3 and 4 (not shown), upward thrust on valve-member 3 is transmitted through a projection (15) to an abutment which may be adjustable or hydraulically-loaded. In Figs. 5 and 6 (not shown), the valve-member 3 is rigidly secured to the delivery pipe which has a flexible coupling enabling swivelling of the valvemember, the bearing comprising a slider (31) pivotally connected to the valve-member and engaging a horizontal guide via rollers (33); hydraulic biasing may be incorporated. In Figs. 7 and 8 (not shown), the bearing comprises a ball joint which may be hydraulically biased.
Patent GB-1013149-A (GB)
Title: Aircraft engine assembly
Inventor: TAYLOR MAURICE IAN
IPC: F02K1/00
Filed: 1964-11-05
Abstract: 1,013,149. Jet lift aircraft. ROLLS-ROYCE Ltd. Nov. 5, 1964, No. 45198/64. Heading B7G. [Also in Division F1] An aircraft engine assembly comprises an engine housing, an engine disposed therein and a control linkage for transmitting rotary motion between the housing and the engine, the linkage comprising a first rotatable member mounted on the housing, and second rotatable member mounted on the engine and a shaft removably connected to the first and second rotatable members by splined connections. The invention is described with reference to an assembly of gas turbine vertical lift engines 16, two of which are shown in Fig. 2 disposed within engine housings 15. A common air inlet 17 is provided for the pair of engines. The housings 15 are indicated as being formed of " honeycomb " material. The fuel control throttle of each engine is adapted to be rotated by a control linkage 20 which extends radially across the space between the engine and the housing, the linkage 20 being rotated by means of a system of wires and pulleys 22, 21. The linkage 20 is shown in detail in Fig. 3 in which the casing 23 of an engine 16 is shown disposed within the engine housing 15. A bush 24 is rotatably mounted in the casing 23, the bush being connected by means not shown to the fuel control system of the engine. A pulley 32 is rotatably mounted in a boss 33 secured to the housing 15, the pulley being rotated by means of wires 22. Rotary movement of the pulley 32 is transmitted to the bush 24 by means of a shaft 27 which is in splined engagement 30, 31 with the pulley and in splined engagement 26, 25 with the bush, the splines 30 and 26 on the shaft having arcuate outer edges to allow relative movement. The shaft 27 is prevented from outward and inward displacement by means of cover-plates 34, 35 secured to the pulley and to the bush. The shaft 27 may be removed by removing the coverplate 34 and by drawing on the transverse pin 40. The engine may then be removed from the housing.
Patent GB-1522515-A (GB)
Title: Prosthetic body joints
IPC: A61F2/36
Filed: 1975-10-31
Abstract: 1522515 Prosthetic bone-joint SARATOV N - I INST TRAVMATOLOGII I ORTOPEDII 31 Oct 1975 45475/75 Heading A5R [Also in Division B5] A proximal femur endoprosthesis is prepared by in the interior space casting of a bone obtained from a cadaver or other source after removal of the spongy-tissue and using this cast as a model from which the prosthesis is formed. The bone is split longitudinally into two equal parts and plaster of paris used to make the model. The endoprosthesis has a shaft 3 which passes smoothly via two part conical surfaces 5, 6 to an intertrochanteric part 2 having the element corresponding to the greater trochanter removed and generally formed as a frustrum leading to a neck 1 on which a head 8 and artificial cotyloid cavity 7 are mounted.
Patent GB-1008396-A (GB)
Title: Improvements in or relating to central buffer couplings for railway vehicles
IPC: B61G3/10
Filed: 1961-12-19
Abstract: 1,008,396. Vehicle automatic couplings. J. VIELMETTER. Dec. 19, 1961 [Dec. 23, 1960], No. 45506/61. Heading B7T. A central buffer coupling having a buffing jaw 3 and a pulling jaw 5 is provided with a guide horn 7 which has a surface 21 extending outwardly and forwardly of the surface 19 of the jaw 3, the coupling also having a vertical surface 29 which may engage the guide horn of a similar coupler. The surfaces 13 are adapted to be engaged by oppositely sloping surfaces 15 on the similar mating coupler. Specification 1,008,395 is referred to.
Patent GB-1099834-A (GB)
Title: Improvements in push/pull cables and armoured hoses
Inventor: MADDEN FRANCIS EUGENE
IPC: F16C1/26
Filed: 1965-10-28
Abstract: 1,099,834. Bowden mechanisms; hose end fittings; armoured hoses. BRITISH WIRE PRODUCTS Ltd. Nov. 4, 1966 [Oct. 28, 1965], No. 45670/65. Headings F2G, F2K and F2P. To prevent oil leakage from an armoured hose on a Bowden mechanism having a core (not shown), movable in a sheath, said hose or sheath comprising a lining tube 4 of plastics material, helically wound wires 2, helically wound metal tape 3, and an outer casing 7, a sleeve 10 of plastics material, having a bore substantially equal to that of the lining tube 4, is forced into the end of the tube 4, an external annular flange 12 on the sleeve 10 engaging on one side the end of the tube 4 and on the other a sealing ring 13. The lining tube 4 may be counterbored to receive the sleeve 10. A short tube 5 is pushed axially to compress the sealing ring 13 and swaged on to the sheath.
Patent GB-1245764-A (GB)
Title: Improvements in or relating to test equipment for electrical or electronic devices
Inventor: MARTIN ERWIN
IPC: G01R31/01
Filed: 1968-09-26
Abstract: 1,245,764. Sorting. SIEMENS A.G. 26 Sept., 1968, No. 45762/68. Heading G4H. [Also in Division G1] Apparatus for testing an electrical characteristic of a device P ascertains the variation of the characteristic as a parameter of an applied input signal varies within a certain range, and then produces a pulse train whose length is representative of the characteristic over the range. The pulse train may be related to the minimum or maximum value of the characteristic over the range tested, or to an intermediate value. In the example given P is a filter whose frequency response is to be investigated. A generator G supplies to the filter a test signal U1 whose frequency is varied periodically over a certain range. The output U2 of the filter is applied to a measuring instrument Lm via a damping circuit T3 which damps the oscillations of the moving element Mw of the instrument. A light beam is reflected by a mirror Sp, mounted on the moving element, on to a scale Sk, along which are mounted pairs of photodiodes a-m, the diodes of each such pair being connected to respective measuring units M1, M2, and limit photodiodes n, o. On setting the test signal generator G in operation the light beam sweeps past the lower limit diode o producing a pulse which, by triggering a timer unit T1, renders units M1, M2 inoperative for a predetermined period to allow transient effects to die away. A test period follows in which unit M1 ascertains which of the diode pairs are swept by the light beam during the periodic variations of the test signal frequency. On termination of the test period the damping circuit T3 is disconnected from the instrument so as to cause the light beam to return rapidly to zero. In doing so it sweeps a certain number of diode pairs, and the second diodes of these pairs supply pulses to unit M2 which, however, under the control of unit M1, inhibits the response of diodes in those pairs which responded during the test period. Thus a pulse train is generated the number of pulses in which is a measure of the lowest point to which the light beam was sweeping during the test period. The pulse train and/or the range of variation of the characteristic during the test period may be used to control apparatus for sorting the devices into an appropriate category. Automatic fault indications are given if diode o is not swept by the light beam at the beginning of a test, or if the upper limit n is exceeded.
Patent GB-1454670-A (GB)
Title: Tractor-mountable tool-carrying attachment
IPC: E02F3/34
Filed: 1974-10-23
Abstract: 1454670 Shovel latches WILHELM STOLL MASCHINENFABRIK GmbH 23 Oct 1974 [10 Jan 1974] 45772/74 Headings E1F and E2A The profile 9 of a recess 8 in a tool, e.g. a scoop, structure 3, 7 into which enters a bolt 10 movable longitudinally of its axis in a bearing 15 on a vehicle-mountable attachment 2 on the arms 1 of which the tool is pivoted at 5 is obliquely inclined to the axis of the bolt so that the tool, which will always pivot, if free to do so, in one direction about the axis from the shown latched position in the attachment, will cause to be applied to the bolt through the profile 9 of the recess a force in the unlocking direction of the bolt, which is associated with a locking catch. A bearing roller can be mounted on the recessengaging end of the bolt or said end may be oblique to the axis of the bolt, with which a restoring spring 35, 34, 36 may be associated. The locking catch may comprise a rod 13 pivotally connected to the bolt and slidable in an adjustable bearing 19-21, a spring biassed abutment bolt 14 that is rotatably supported in the attachment 1, and a solenoidoperable latch 28.
Patent GB-1406569-A (GB)
Title: Liquid crystal digital reticle
IPC: G02F1/13
Filed: 1973-10-01
Abstract: 1406569 Optical apparatus HUGHES AIRCRAFT CO 1 Oct 1973 [2 Oct 1972] 45798/73 Heading G2J [Also in Division H4] A liquid crystal reticle system comprises an objective lens (11) and an optical element (10) e.g. an eye-piece as shown, or a television camera or other photo-detector, positioned in an optical path, and a transparent liquid crystal cell 12 between the lenses (10, 11), the cell having two sets 18a...18d, 19a...19d of transparent conductors lying orthogonally of each other in spaced parallel planes. Switches enable two selected conductors, one in each plane, to be energized to induce turbulence in the crystal at the projective intersections of (a) the two conductors, and (b) each energized conductor in one set with the unenergized ones of the other, see Fig. 5b (not shown) to form a reticle.
Patent GB-458350-A (GB)
Abstract: 458,350. Fluid-pressure servomotorcontrol systems. SIEMENS APPARATE UND MASCHINEN GES., 4, Askanischer Platz, Berlin. June 19, 1936, No. 17155. Convention date, July 1, 1935. [Class 135] In a charging-pressure regulator for supercharged aircraft engines in which a servomotor 19 controlled by a device 7 responsive to the pressure of the air or mixture passing to the engine, actuates a throttle device 6 so as to restore the charging pressure to a predetermined value, the servomotor is subject to the supplementary control of a device 8 responsive only to temperature changes in the charging air or mixture so that the charging pressure is compensated for such changes and overheating of the engine is avoided. The charging pressure is stabilized at a slightly lower or higher value according as the temperature increases or decreases. As shown, an evacuated bellows 7 in the conduit 1 leading from a blower 5 to the engine is coupled by a rod 9 to a double-armed lever 10, one end of which is connected to the control valve 18 of the servomotor and the other of which carries a roller 15. The latter is held resiliently against a suitably shaped cam 14 on a lever 13 connected to a Bourdon tube 11 which responds to the change in volume of the mercury in a bulb 8. A throttle valve 6 in the inlet 4 of the blower is coupled to the servopiston 19 by a linkage 21 ... 24 and may be operated manually at any time by a lever 26. In a modification, the bellows 7 is filled with air or gas and also controls a further servomotor regulating the quantity of fuel delivered by a fuel injection pump.
Patent GB-1219751-A (GB)
Title: Improvements in or relating to apparatus for comparing the inductances of two coils
Inventor: ALLEN HOWARD JOHN BRANDSOM
IPC: G01R27/26
Filed: 1966-10-13
Abstract: 1,219,751. Measuring inductance; proximity detecters. PREMIER PRECISION Ltd. Jan. 11, 1968 [Oct.13,1966], No.45869/66. Headings G1N and G1U. In an apparatus for comparing the inductances of two coils 11, 12, signal pulses from a source 13 are alternately applied to separate switching circuits e.g. bi-stable circuits 21, 22, so that each circuit is alternately set to initiate the application of a voltage pulse, (from a respective drive follower 23, 26) to a corresponding coil. A trigger circuit 25 is operative when the current in either coil reaches a predetermined value to reset the corresponding switching circuit to terminate the application of each voltage pulse to that coil. An arrangement, comprising e. g. push pull followers 27, 28 and differential meter 29, is controlled by the switching circuits to indicate the relative durations of the set periods of the two switching circuits. The signal pulses are derived from a crystal oscillator 14 and binary divider chain 15,16, the pulses from the divider 16 being applied alternately to the bi-stables 21, 22 via a gating arrangement 18, 19 controlled from a further divider stage 17. The drive voltage pulses applied to the coils cause current to build up therein, a threshold level being reached after a time depending on the coil inductance. When the threshold is reached, the corresponding bi-stable is reset, so that the set period corresponds to the inductance of the related coil. Thus the average levels of the outputs from the bi-stables correspond to the inductances of the related coils. These levels are subtracted at the meter 29 which indicates the difference between the coil inductances. The two coils may form part of a proximity detector, pressure detecting transducer, or vapour pressure thermometer.
Patent GB-1484182-A (GB)
Title: Display system
IPC: G06F3/153
Filed: 1974-10-23
Abstract: 1484182 Cathode-ray tube displays INTERNATIONAL BUSINESS MACHINES CORP 23 Oct 1974 [17 Dec 1973] 45896/74 Heading H4T In a CRT data display system employing a recirculating shift register the system being energized by an A.C. power supply subject to irregular frequency variations, synchronization of the display with the power supply is effected by; providing more storage positions in the shift register than is necessary to store data for a complete frame display, shifting the data at the normal rate for the display and during the interval between the end of a display frame and the commencement of the next (refreshed) display frame, shifting the data at the normal rate and at a second different rate for respective periods depending on the elapsed time between the end of a display frame and the occurrence of a cyclically recurring characteristic (e.g. peak amplitude) of the A.C. waveform, whereby synchronization of the A.C. power waveform and the display is effected. The cyclically recurring characteristic is preferably the positive peak of the primary power source, and data displayed in synchronism with the normal rate of shifting of the DSR, the rate of shifting halved at the end of the frame, a counter incremented upwardly from zero at a fixed rate until the next positive peak is detected, the counter then being incremented downwardly to zero, at which time the shift rate isdoubled to the normal rate. Subsequently, the fixed time expires and the next frame display commences. Fig. 1 includes CRT display 1, supply 3 converting 60 Hz A.C. to one or more D.C. voltages, refresh storage buffer 11 with input and output registers 27 and 14, AND circuits 16 and 17, data codes being shifted by pulses along line 31, and positive peak detector 37 connected to the reset input of counter 34 which sets flip-flop 46 to activate AND circuit 32 and allow data codes along lines 33 to character and sweep circuitry 21. AND circuit 61 is simultaneously activated to gate clock pulses from line 35 to line 62. During time Tef (see Fig. 2), flip-flops 48, 57 remain reset and positive signals activate AND circuit 43 which enables AND circuit 42 to gate pulses from clock 36. Data codes in buffer 11 are shifted at the normal or fast rate during Tef. At the end of Tef, flip-flop 48 activates upward counting in counter 50. Operational sequences for the respective components are discussed in detail (see also Fig. 2).
Patent GB-1120508-A (GB)
Title: Light-activated switch device for vehicles
IPC: B60Q1/14
Filed: 1966-10-14
Abstract: 1,120,508. Vehicle lighting control. GLOBAL PATENTS Ltd. Oct. 14, 1966 [Oct. 21, 1965], No. 45914/66. Heading G1A A vehicle lighting control device comprises a photo-conductive sensor responsive to ambient light conditions and feeding a reed-type relay. In a simple device Fig. 2 (not shown) for control of a vehicle parking lamp, the sensor (15), a CdS cell, and relay (16) are mounted, with the lamp, in a casing attached to the vehicle rear wing. A manual switch (18) is provided to cut off power from the car battery or to test the parking lamp. The relay may Fig. 2 (not shown) or may not Fig. 4 (not shown) be provided with a permanent magnet (22) to hold it in. In a more sophisticated version (Fig. 3), the device is connected to the vehicle brake and indicator lamps 24 through a resistor 25, so that during daylight conditions the lamps are brighter than at night-time. The parking lamp can be connected in circuit as required using switch 26.
Patent GB-1133330-A (GB)
Title: A double disc refiner
Inventor: STEINIGER HERMAN W
IPC: B01F15/02
Filed: 1966-10-14
Abstract: 1,133,330. Disc refiners. BAUER BROS. CO. 14 Oct., 1966 [14 Oct., 1965], No. 46008/66. Heading B2A. A disc refiner 23, Fig. 1, includes two contra-rotating discs 42, 43 enclosed by a sealed casing 22, so that pulp may be worked by the discs under selected pressure conditions. the discs being secured to separate motordriven shafts 26, 27 rotatable in the casing 22 which, comprises parts 53, 54 bolted at 64 and readily retractible to provide access to the discs. In operation, material, e.g. chips or stock, is supplied by a conveyor 10, Fig. 3, via a rotary valve 11 to a steam-pressurised digester 12 and thence to the refiner, whose discs are adjustably-spaced apart by movement of the shaft 27. Wipers 50 on the disc 43 propel material to an outlet 51 and it leaves the system via a further valve (29), Fig. 4 (not shown). The system may be operated at pressures of 100 to 150 p.s.i. and temperatures from 320 to 340F with disc spacings of .04 to .10 inch. In a second embodiment the junction between the two parts (82, 83) Fig 2 (not shown) is angled to permit the inlet and outlet to be integral with one (82) of the parts and easy access to the discs (74, 75).
Patent GB-1219400-A (GB)
Title: Thermodynamic apparatus and process
Inventor: KANTOR FREDERICK W
IPC: F01K11/04
Filed: 1968-01-10
Abstract: 1,219,400. Refrigerating. F. W. KANTOR. 10 Jan., 1968 [10 Jan., 1967], No. 46370/70. Divided out of 1,217,882. Heading F4H. An absorption refrigeration and heating apparatus comprises a rotor 210 having a sealed liquid and ammonia refrigeration system operated by a thermodynamic pumping action created by a combination of centrifugal forces and heating of the liquid and refrigerant. An absorption chamber 218 is connected by a radial conduit 228 to a radially outwardly-positioned generating chamber 220 to which heat is added by fins 249 so as to drive off the ammonia in gaseous form for passage inwardly through a tube 231 under the differential action of centrifugal force on the liquid and gas into a condensing chamber 222 where it is cooled by heat transfer through fins 252 and liquifies. The liquid ammonia flow from the condensing chamber through a tube 232 is restricted by an orifice at the axially-remotest end of the tube in order to accumulate the liquid in the chamber and achieve a high gas pressure therein. The liquid passing from the tube 232 passes into chamber 240 for evaporation by heat conducted thereto by fins 254 and the gaseous ammonia passes into the chamber 218 for reabsorption by the water.
Patent GB-1132136-A (GB)
Title: Dynamic balancing machines
Inventor: JACKSON ERNEST RICHARD
IPC: G01M1/22
Filed: 1966-10-18
Abstract: 1,132,136. Measuring dynamic unbalance electrically. JACKSON & BRADWELL Ltd. Oct. 18, 1967 [Oct. 18, 1966], No. 46418/66. Heading G1N. In apparatus for determining the dynamic unbalance of a cylindrical type rotor supported in two bearing planes, the sensitivity of the unbalance transducer at each bearing is varied inversely . to the weight component at that bearing, so that the signals from the two unbalance transducer circuits are equal, and give the total dynamic unbalance per unit weight. The weight component at each bearing is measured, with the rotor stationary by two resistance strain gauges T 1 , T 2  Fig. 2 connected in a bridge circuit, balanced by manual adjustment of resistor R5 in one arm. R5 is gauged with a potentiometer R6 in series with resistors R7, R8 across an unbalance transducer C, measuring the displacement of the rotor at that bearing during rotation. Thus, balancing the weight in measuring bridge also adjusts the sensitivity of the unbalance measuring circuit, whose output is therefore indicative of the unbalance per unit weight of rotor.