baber/WOPTO huggingface dataset:
Patent GB-1054628-A (GB)
IPC: F16K21/18
Abstract: 1,054,628. Fluid pressure servomotor system. DOBBIE McINNES Ltd. Sept:13, 1963 [Sept.14, 1962], No.35052/62. Heading G3P. Apparatus for automatically operating the service valve 2 of a tank 1 for liquid when the liquid reaches a predetermined level in the tank comprises probe pipes 10, 11 supplied with air from a supply 23, the pipes being connected to one limb of U-tubes 16, 17 each having mercury reservoirs 18, 19. The other limbs of the U- tubes are connected by pipes 20, 21 to vessels 34, 33 which are pivoted to a support by limbs 35. Rods 37, 36 connect the limbs to a balance beam 31, pivoted at 32 and carrying a spring loaded ball valve 55 which normally closes a leak-off pipe 47. A valve 51 is carried by diaphragms 52, 53 subjected to a fluid supplied through pipe 54 such that the valve 51 is normally closed but is opened when the balance beam rotates to open the ball valve 55. The service valve 2 is actuated by a fluid motor 7 and is set to the open or closed position by a lever 8 and the lever is then moved to the closed or open position by an actuator piston 62 when fluid pressure is supplied to one of its ends. These ends are connected to pipes 63, 64 either of which may be plugged into a manifold 50 depending on the action required. When filling the tank, the valve 2 is opened by the lever 8 and the pipe 63 is plugged into the manifold 50. As the liquid level rises the mercury in U-tube limb 21 first rises followed by that in U-tube limb 20. The mercury then enters both vessels 33, 34 at the same time and rises in these vessels. As shown, the vessel 34 has a plug 34A at the top such that as the mercury rises above the level of this plug, the weight of mercury in vessel 33 exceeds that in vessel 34 and thereby rotates the beam 31 to open the valve 51. Fluid pressure is then fed to the actuator 62 to cause the service valve to close. The positions of the U-tubes 16, 17 can be adjusted relative to each other and the vessels to set the predetermined liquid level and may also be used to close the service valve when the tank is emptied. A leaky piston device 57 is also actuated when the valve 51 opens to return the balance beam to its balanced position. The probes 10, 11 or a third probe 9 may be selectively coupled to mercury and water monometers 67, 68 to give an indication of the level in the tank. In a modification the fluid pressure in pipe 63 or 64 actuates a further valve controlling the actuator and is fitted with pressure gauges to give an indication of the setting and condition of the valve 2.
Patent GB-1069080-A (GB)
Abstract: 1,069,080. Electrical pick-offs for gyroscopic apparatus. SECRETARY OF THE NAVY, UNITED STATES OF AMERICA. May 6, 1964 [May 9, 1963], No.18812/64. Headings G1C and G1N. A gyroscope in a sealed cylinder 19 (Fig. 1) with input axis I-I, rotor axis S-S and output axis O-O, has a pick-off 21 mounted on the output shaft 9, comprising a stator 23 with eight salient poles each carrying a winding, and a rotor 59 with four windings symmetrically located recessed into the rotor surface. The stator windings are Ae-energized to produce alternate magnetic polarities in the stator poles, and the rotor windings are normally symmetrically located with respect to the magnetic fields whereby their resultant induced voltage when connected in series is zero, and indicates the extent and direction of angular rotation from this position by the magnitude and polarity of the resultant induced voltage.
Patent GB-1084192-A (GB)
IPC: C07D487/08
Abstract: 1,084,192. 3,8 - Diazabicyclooctane derivatives of phenothiazine. LEPETIT S.p.A. March 3, 1965 [March 18, 1964], No. 11434/64. Heading C2C. The invention comprises compounds of the general formula wherein R represents hydrogen, halogen, alkoxy or trihalomethyl and R<SP>1</SP> represents alkyl or hydroxy-alkyl (containing from 1 to 8 C atoms) and acid addition salts thereof and the preparation thereof by reacting a 2-substituted-10-(3- chloroyrropyl)-phenothiazine with a 3-substituted- 3,8-diazabicyclo-[3,2,1]-octane in the presence of about three molecular amounts of an alkali metal hydroxide in an inert anhydrous organic solvent. They may also be prepared by reacting a chloropropyldiaza-bicyclooctane with the sodium salt of an appropriate phenothiazine. The above novel compounds act as tranquilizers and may be administered orally or intraperitoneally.
Patent GB-1143711-A (GB)
IPC: F02P7/02
Abstract: 1,143,711. Variable capacitors. STANDARD TELEPHONES & CABLES Ltd. 20 Dec., 1967 [4 Jan., 1967], No. 548/67. Heading HIM. [Also in Divisions F1 and H2] An ignition system comprises a variable capacitor, means to charge the capacitor when it is at its maximum capacity and means to discharge the capacitor when it is at its minimum capacity. As shown, the capacitor comprises a pair of coacting metallic plates 8, 9 at least one of which is coated on the surface facing the other plate by a thin solid dielectric layer. The capacitor casing may be vacuum sealed and evacuated. As the roller 19 is driven toward the central axis 13 by the action of the cam 20, the lower capacitor plate 9 is pushed upwards against the spring force provided by the diaphragm 18.
Patent GB-1143825-A (GB)
IPC: A44B19/60
Abstract: 1,143,825. Sliding clasp fasteners. OPTI HOLDING A.G. 12 Oct., 1966 [5 Nov., 1965], No. 45519/66. Heading E2S. A sliding clasp fastener of the type having stringers comprising interlocking elements made from a plastics material secured to stringer tapes the end portions of the stringers being reinforced by strips 5 of thermoplastic material applied transversely to the length of the fastener on one or both faces thereof, and formed into top and bottom stop members of plastics material formed as unitary pieces produced by welding together with fusion to the stringer tapes of the plastics materials of the reinforcing strips and corresponding parts of the rows of interlocking elements has the reinforcing strips shorter than the width of the fastener and applied short of the edges of the fastener stringers thus leaving the edge portions unreinforced. As described the fasteners are made by first producing two long lengths of tape each with a row of interlocking elements made from a single filament secured to its edge portion and with the two rows of interlocking elements interlocked, and then applying the strips 5 to one or both faces of the interlocked elements and tapes, the strips being made of a thermoplastic foil; by using a forming tool the top and bottom stop members are then formed from the strips and the interlocking elements, and the strips are cut through to form gaps. Fastener lengths are subsequently separated by cutting across the interlocked elements and tapes. Each reinforcing strip is made wide enough to produce one pair of end fittings for one fastener length only or alternatively it is made wide enough (as shown) to produce the top stop members for one fastener length and the bottom stop members for the adjacent fastener length, as shown.
Patent GB-1143880-A (GB)
IPC: C01F7/445
Abstract: 1,143,880. Alumina from aluminium hydroxide. METALLGESELLSCHAFT A.G. and VEREINIGTE ALUMINIUM WERKE A.G. 18 Dec., 1967 [16 June, 1967], No. 57423/67. Heading C1A. Anhydrous alumina is made from aluminium hydroxide in a fluidized bed process. Aluminium hydroxide from 1 is charged into a Venturitype drier 3 where it is dewatered and partially dehydrated by the hot exhaust gases from a fluidized bed furnace 9, and is carried by the gas to cyclone separators 4 and 5, whence moist air is discharged, and the alumina then passes to Venturi drier 6, where it is entrained by dustbearing exit gas from the furnace, and carried to cyclone 7, whence the alumina passes to furnace 9. The furnace is at a temperature of 600 to 1200 C, and solids entrained in its exhaust gas are part recycled to the fluidized bed by recirculating cyclone 8, and part cycled to fluidizing cooler 16, and cooled by a bank of cooling tubes 21 and also by direct cooling by passage of fluidizing air, prior to discharge as product at 25. The heated air from cooling tubes 21 is used as fluidizing gas for the fluidized bed in 9, and the heated fluidizing gas from cooler 16 is fed into furnace 9, after removal of entrained solids in recirculating cyclone 23 as secondary air, at an inlet height above the grate of 0À3 to 1À5 times the height of the water gauge in mm. corresponding to the pressure drop to which the fluidized bed in the furnace is adjusted, the ratio fluidizing gas : secondary air being 1: 2 to 4: 1. Heating of the furnace is effected by a supply of residue-free fuel into the zone between the grate and the secondary air inlet.
Patent GB-1226730-A (GB)
IPC: C07C49/603
Filed: 1970-01-27
Abstract: 1,226,730. lsophorone derivatives. R. J. REYNOLDS TOBACCO CO. 27 Jan., 1970 [3 Feb., 1969], No. 3898/70. Heading C2C. Isophorone derivatives are prepared by reacting isophorone with isopropenyl acetate to produce a reaction product comprising 3,5,5- trimethyl - 1,3 - cyclohexadien - 1 - ol acetate, reacting this with a dienophile to produce a 3,5,5 - trimethyl - bicyclo [2,2,2] oct - 5 - en-1-ol acetate adduct and decomposing this adduct with a strong base to produce a 4-substituted isophorone. The first reaction product also comprises 3,3,5-trimethyl-l,5-cyclohexadien-lol acetate and 3-methylidene-5,5-dimethyl- 1 - cyclohexen-1-ol acetate.
Patent GB-1228182-A (GB)
IPC: H01F41/08
Filed: 1968-05-02
Abstract: 1,228,182. Transponders; inductive signalling. M. S. KEELER. 2 May, 1968 [5 May, 1967], No. 20825/68. Headings H4L and H4U. In an interrogator-responder system, e.g. for identifying vehicles, the interrogator transmits an R.F. signal which is rectified at the responder, Fig. 1 (not shown), to provide an operating potential for the responder on lead A<SP>1</SP>, Fig. 2. The signal may be transmitted and received by conventional aerials or inductive coupling may be used. Operating voltage on lead A1 is supplied via a normally conductive transistor Q1  and Zener diode 32 to the base of a "start" transistor Q2, the emitter of Q2, being connected to earth through an RC timing circuit 34, 36. When the operating voltage reaches a predetermined value the transistor Q2 conducts and switches on the first silicon control switch 42 in a chain of such switches 42 to 54. The outputs of switches 42 and 54 are connected via diodes to both leads 56, 58 to define the start and end of the code signal and the remaining outputs are connected to one or the other lead in accordance with the coding required. A switch 86 converts the chain into a ring circuit so that the code transmission may be repeated. When SCS 42 conducts, leads 56, 58 and 66 are energized, the signal on leads 56, 58, through varactor diodes 142, 138 tone modulating an R.F. carrier generated by transistor oscillator Q7 and transmitted via aerial 116. The signal on lead 66 triggers a unijunction device 94 when the charge on capacitor 104 reaches a predetermined value, adjustable by resistor 100, so that a transistor Q3 conducts and cuts off transistor Q1 to interrupt briefly the power supply and cut off SCS 42. When capacitor 104 is being charged and before unijunction 94 is triggered, a voltage is applied to switch on a transistor Q4 followed by transistor Q5 which in turn switches on transistor Q6 in the power supply of the R.F. oscillator 26. The transmitter 26 will remain on until the unijunction 94 is triggered and when SCS 42 is cut off the charge on capacitor 68 causes SCS 44 to conduct and the cycle is repeated but this time only one of the varactors 138, 142 is operative.
Patent GB-1228369-A (GB)
IPC: F16K31/44
Filed: 1967-08-31
Abstract: 1,228,369. Valves. W. GRIFFITHS. 26 April, 1968 [31 Aug., 1967], No. 39967/67. Heading F2V. A valve comprises a loose resilient ring 4, e.g. of natural or synthetic rubber, or plastics, adapted to be seated on to the sides of a groove 3 by a body member 8, to close off an inlet duct or ducts 14 connecting with the bottom of the groove, the member 8 being mounted slidably on a cover member 5. The cover 5 is mounted on a screwed spindle 10 so that when it is rotated by a knob 6, it moves the member 8 towards the ring 4. The ring 4 is moved off its seat by fluid-pressure at the inlet 14. The flow is throttled before it reaches an outlet 15 between a face 17 and a face 16 on the cover. In Fig. 4, not shown, a check valve (26) closes the upstream side of a duct (28), and has a stem (43) contacting a loose ring (23) so that as the ring is moved off its seat, the check valve is closed to allow servicing. The sides of the groove may be chamfered. The resilient ring can have a square cross-section. The outlet 15 can be disposed on the outer side of the groove 3. The knob 6 may be rotatable with respect to the cover.
Patent GB-1231300-A (GB)
IPC: F02P7/04
Filed: 1969-10-01
Abstract: 1,231,300. Switch cases. ALFA ROMEO S.p.A. 1 Oct., 1969 [8 Oct., 1968], No. 48354/69 Heading H1N. An ignition distributer 7 on a vehicle is enclosed by a protective casing comprising two half-shells 1, 1<SP>1</SP> of rigid moulded plastics, which internally match the. shape of the distributer, and a flexible cap of elastomeric material 8. The half-shells are sealed along lips 2, 2<SP>1</SP> by tongue- and-grooving and held together by spring clips 3, 4 in grooves 5, 6. The cap 8 is clipped on the joined half-shells to provide a sealed closure and has sealing through-bores 9 for cables to the distributer.
Patent GB-1231505-A (GB)
Inventor: GRAMER E A
IPC: B01D47/04
Filed: 1968-11-12
Abstract: 1,231,505. Separating particles from a gas. ALFA-LAVAL A.B. 12 Nov., 1968 [16 Nov., 1967], No. 53574/68. Heading B1R. In the removal of particles from a gas, the gas is passed upwardly through a mass of foam disposed between screens 4 and 5, the foam being generated by air and a foamproducing liquid supplied through line 9. The air and liquid are sprayed against a screen 7; liquid containing separated particles is collected in an annular trough and removed by line 10.
Patent GB-1232576-A (GB)
IPC: F17C3/02
Filed: 1967-04-18
Abstract: 1,232,576. Liquefied gas storage tanks. OCEAN GAS TRANSPORT Ltd. 16 May, 1968 [18 April, 1967], No. 17828/67. Heading F4P. A cold liquefied gas, e.g. natural gas, storage tank suitable for mounting in a ship comprises a multi-lobed welded aluminium alloy shell having high strength aluminium alloy internal cross-supports, the bottom of the tank having means, e.g. a key 4, Fig. 3, for locating it on a supporting surface. The four vertical sides of the tank which is rectangular consist of vertical lobes 1, Fig. 1, having vertical plates 2 which are connected to corresponding plates 2 on the opposite side by tie-plates 3, 3a, respectively, running fore and aft and thwart ship. The top of the tank is also multi-lobed and is connected to a flat base by angle-section tie-members 6. Also running from top to bottom of the tank are channel-section girders disposed about vertical planes through the axes of key 4 and the girder webs respectively comprise portions of tieplates 3, 3a and patches 5, 5a filling the intermediate spaces between vertical adjacent tieplates. Additional patches 5 welded between vertically adjacent portions of the tie-plates 3 disposed on the fore and aft centre line form a continuous bulk head separating the two lateral halves of the tank.
Patent GB-1238550-A (GB)
IPC: C08G18/38
Filed: 1969-12-04
Abstract: 1,238,550. Polyurethane foams. DOW CHEMICAL CO. 4 Dec., 1969 [4 Dec., 1968], No. 59340/69. Headings C3C and C3R. Flame-resistant rigid to semi-rigid closed or open cell polyurethane foams are prepared by mixing (1) a diphenol of the formula wherein R represents C 1-8  alkylidene, -S-, -S-, -SO- or -SO 2 -, X represents hydrogen, halogen or C 1-12  alkyl, and n is 0, 1, 2 or 3, or a mixture thereof with a polyether polyol, novolac polyol and/or polyester polyol in which the diphenol provides at least 50% of the total reactive OH groups; (2) an organic polyisocyanate; (3) a blowing agent; (4) an emulsifying agent; and (5) a catalyst for polyurethane formation; said polyisocyanate being used in proportions corresponding to from 0À9 to 2À0 NCO group for each OH and other active H atom present in the mixture of reactive materials. In an example, a foam is prepared from 4,4<SP>1</SP>-isopropylidene diphenol, a polymeric methylene di-(phenylisocyanate) having an average of 2À6 NCO groups per molecule, trichlorofluoromethane, triethyl phosphate, sodium acetate and a silicone surfactant.
Patent GB-1257103-A (GB)
IPC: G03G15/041
Filed: 1969-04-10
Abstract: 1,257,103. Electro-photographic copiers. XEROX CORP. April 10, 1969 [April 15, 1968], No. 18383/69. Heading G2H. The image of an original or a platen 12 is projected on to a drum 10 via a scanning mirror 16, a lens 20 and a mirror 22. Lens 20 and mirroi 24 are moveable to vary the width of the image, the scanning rate of mirror 16 being adjusted to vary the length of the image accordingly. A belt 36 connected to the drum drive motor (50), Fig.2 (not shown) oscillates a sector 38 which, through gears 114, 116 oscillates on shaft 32 supporting mirror 16. A disc 134 is rotatable to bring a selected cam 136, 138, 140 into engagement with a follower 126 to adjust the rate of movement of gear 114 and thus of mirror 16 according to the desired manification lens 20 is supported by a mount (58), Fig.3 (not shown) moveably mounted on a screw (68). Mirror 24 is similarly movable, and is also tilted as it moves by a cam surface (110), Fig.6 (not shown) so that the image always strikes drum 10 in the same place.
Patent GB-1257395-A (GB)
IPC: F24F8/108
Filed: 1969-11-11
Abstract: 1,257,395. Gas filter. CARBORUNDUM CO. 11 Nov., 1969 [20 Nov., 1968], No. 55086/69. Heading BIT. [Also in Divisions E1 and E2] A gas filter comprises a housing enclosing a plurality of flat, outward flow filter bags 12 open at their lower ends and connected to a shaker mechanism 24 by means of one or more wires secured in the closed upper ends of said bags and having integral hooks 30 shaped to engage slidably over horizontal support tubes 34 of square cross-section. As shown, each bag has two wires and is divided by stitching into compartments 14 .. 19. There is one hook 30 above each compartment and intermediate sections of the wires 32 are bent downwards. The various tubes 34 are secured to shaker mechanism 24 by respective U-shaped spring clips 36, with bolts 44 retaining the tubes therein and bolts 42 attaching the clips to the common cross bar of mechanism 24.
Patent GB-1258869-A (GB)
IPC: G06F11/20
Filed: 1970-06-15
Abstract: 1,258,869. Error checking. INTERNATIONAL BUSINESS MACHINES CORP. 15 June, 1970 [30 June, 1969], No. 28781/70. Addition to 1,237,358. Heading G4A. A self-testing error checking system includes a plurality of multiple-output error checking circuits, each error checking circuit having its multiple output in a given code state when the inputs are all correct and the checking circuit is functioning properly; at least one multipleoutput reduction circuit for receiving a plurality of the multiple outputs, the reduction circuit producing a multiple output in a particular code state when all inputs are correct and the reduction circuit is functioning properly; and means for producing an error indication whenever the multiple outputs from the reduction circuit are in an error state. As disclosed, in a computer, each multiple output consists of two single-bit outputs, the code state mentioned being complementary outputs. The multiple outputs of the checking circuits and reduction circuit are displayed on status lamps, each bit going to two lamps in parallel (in case one fails). If the multiple output of the reduction circuit is non-complementary, the clock line of the computer is gated shut to stop the machine, two EXCL-OR gates in parallel (redundancy) being provided to detect the non-complementary condition, or interrupt is caused. If a checking circuit or the reduction circuit itself fails, a non- complementary output will be given in response to some input (perhaps itself error-free) eventually, hence giving self-testing. A second embodiment replaces each checking circuit of the first embodiment by a reduction circuit fed by a plurality of checking circuits. Thus in effect there is a matrix of checking circuits, each row feeding a respective reduction circuit, the latter feeding the first-mentioned reduction circuit and lamps. A third embodiment provides a reduction circuit for each column as well, these reduction circuits feeding arrangements similar to those fed by the row reduction circuits. In a fourth embodiment, two sending modules each include a checking system as above, and a triplemodular-redundancy arrangement involving equivalence gates, flip-flops and status lamps produces three bits in response to the outputs of both checking systems to feed a majority gate and a minority gate in each of two receiving modules to control which of the sending modules is to be gated to the receiving modules, the sending module in use being replaced by the other if faulty, then if this other develops a fault, it is replaced by the first and so on (thus giving retry). A fifth embodiment differs from the fourth in using majority and minority gates instead to switch the power on and off in the appropriate sending modules, each receiving module simple ORing the data from both the sending modules, this data being zero from the sending module switched off.
Patent GB-1259485-A (GB)
IPC: B60T8/1763
Filed: 1969-02-19
Abstract: 1,259,485. Aritiskid brake control systems. KELSEY-HAYES CO. 19 Feb., 1969 [21 Oct., 1968], No. 9121/69. Heading F2F. An anti-skid brake control system is controlled in accordance with dv/dt and d2v/dt2 (v=wheel speed) so that the system cycles during braking. As described the wheel speed signal is applied to two differentiating circuits in series the outputs are applied to logic gate circuits (90, 94, 96), Fig. 6 (not shown). The operation of the circuit is illustrated in tabular form, Figs. 5, 7 (not shown), for the four "quarters" of the braking cycle as illustrated in Fig. 4 (not shown).
Patent GB-1264204-A (GB)
IPC: F16C1/26
Filed: 1969-03-21
Abstract: 1,264,204. Bowden mechanisms; flexible tubes. TELEFLEX Inc. 21 March, 1969 [24 July, 1968], No. 14935/69. Headings F2K and F2P. An all-metal flexible conduit for a Bowden cable comprises an inner monocoil 10 wound with abutting convolutions from a strip having a D- shaped cross-section, long lead wires 22 laid round the monocoil 10, and an open outer monocoil 24 round the layer of wires 22. The curved face of the strip 10 faces inwards in the inner monocoil to reduce frictional contact with the movable core 28 of the cable. The monocoil 10 may be of phosphor-bronze, and the wires 22 and monocoil 24 of stainless steel.
Patent GB-1264326-A (GB)
IPC: G01N21/55
Filed: 1968-06-20
Abstract: 1,264,326. Absorption spectrophotometry. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. June 9, 1969 [June 20, 1968], No.29578/68. Heading G2J. Adjustable mirrors M 1 , M 2  Fig.8 are arranged to focus a beam of infrared radiation on to one of the two concave lateral faces of a body WAY<SP>1</SP> Z<SP>1</SP>, the body having a test sample deposited in the form of a thin film on the remaining surfaces. The beam undergoes a number of attenuated total reflections within the body tracing out two or more cyclic paths, Fig.7 before emerging at the other concave lateral surface, whereupon it is focused by similar adjustable mirrors M 3  and M 4  on to the entrance slit of a spectrophoto-meter. The internally reflecting body may have only one concave surface in a cylinder, this serving as both entrance and exit surfaces Figs. 5 and 6 (not shown), or may have one or more planar surfaces as in Fig. 11 (not shown) and the body may have one or more hexagonal shapes Figs.1, 3 and 13 (not shown). The Specification gives details of the geometry of the various tracks obtained with the respective bodies, of the critical and maximum indices of refraction for various angles of incidence for various materials and of the critical reflection angles for various combinations of body and sample materials.