baber/WOPTO huggingface dataset:
Patent GB-1062849-A (GB)
Title: Production of polyesters
IPC: C08G63/82
Filed: 1965-12-15
Abstract: 1,062,849. Polyester production using tellurium catalysts. TOYO BOSEKI KABUSHIKI KAISHA. Dec. 15, 1965 [Dec. 16, 1964], No. 53317/65. Heading C3R. Polyesters are produced by polycondensing a bisglycol ester of a dicarboxylic acid or etherester of a hydroxycarboxylic acid or a precondensate thereof in the presence of a tellurium compound. Suitable tellurium compounds are inorganic salts, e.g. the dichloride, tetrachloride, sulphates, nitrates, borates, dioxide and trioxide; tellurous acid and salts thereof; telluric acid and salts thereof; tellurium alcoholates and glycolates; tellurium diphenyl; and organic salts, e.g. the stearate, benzoate and adipate. Amounts of 0À0001-0À05 wt. per cent of the acid component are satisfactory. Other catalysts e.g. compounds of the alkaline earth metals, Mg, Zn, Cd, Pb, Mn, Co, Ge, Sb or Ti may also be present. Suitable components of the polyesters are terephthalic and isophthalic acids, cyclohexane - and naphthalene - dicarboxylic acids, p-hydroxybenzoic and hydroxypivalic acids, and ethylene-, tetramethylene-, and neopentyl glycols and cyclohexane dimethanol. Modifiers, stabilizers, colorants, TiO 2  or pigments may be added. In examples polyethylene terephthalate is prepared using TeO 2 , TeCl 4 , telluric acid, sodium tellurate or tellurium ethylene glycolate, added before or after the formation of the bisglycol ester. Other catalysts present are the acetates of Cd, Zn or Mu, or sodium zincate.
Patent GB-1363748-A (GB)
Title: Hose fitting for high-pressure service hose
IPC: F16L33/207
Filed: 1971-11-17
Abstract: 1363748 Pipe couplings YOKOHAMA RUBBER CO Ltd 17 Nov 1971 [31 July 1971] 53440/71 Heading F2G A hose end fitting having a uniform bore, a hexagonal section 108 and a screw-thread 109, has a cylindrical sleeve 101 swaged to corrugated form. Preferably, the sleeve is of carbon steel.
Patent GB-1302835-A (GB)
IPC: B60Q11/00
Filed: 1971-11-18
Abstract: 1302835 Road-traffic signals on vehicles SWF-SPEZIALFABRIK FUER AUTOZUBEHOER GUSTAV RAU GmbH 18 Nov 1971 [20 Nov 1970] 53514/71 Heading G4Q In an automotive vehicle blinker unit, operated by a multivibrator T 1 , T 2 , C 2 , C 3 , R 3  and R 5  and in which the high initial surge of lamp current is compensated for by a winding II opposing the winding I in a current monitoring relay, K, the energization of the opposing winding II is derived from the C 2 , R 3  circuit of the multivibrator. The switching relay S, operated by a multivibrator, connects the blinker lamp to the main winding I of monitor K. During the switching-on phase the capacitor C 2  is charged and the diminishing charge current produces an energization of the opposing winding II of the relay K, which compensates the high and decreasing initial current in the blinker circuit which occurs following the closure of the blinker contact S 1 .
Patent GB-1367537-A (GB)
Title: Vehicles
IPC: B60R22/04
Filed: 1971-11-19
Abstract: 1367537 Clamps; latches AUTOMOBILES PEUGEOT and REGIE NATIONALE DES USINES RENAULT 19 Nov 1971 [27 Nov 1970 11 March 1971 25 Oct 1971] 53776/71 Headings E2A and E2B [Also in Division A3] In a vehicle safety device (see Division A3) a safety belt is attached to an arm 10 by a clasp 70 and stirrup 71, the belt being held in a slot of the clasp by a spring biased pivoted latch 79, the same biasing spring 77a urging a rack of teeth 73 of the stirrup into engagement with a complementary rack 76 on the arm 10, but the engagement being releasable on depressing the clasp to allow sliding adjustment of the clasp along the arm. One end of the arm 10 is pivoted to a fixed point of the vehicle and the other end may be releasably locked in an upper position by the engagement in a recess of said other end of a moving electromagnet core which is withdrawn to allow the arm to be lowered when the vehicle is started. In a lower position of the arm its other end engages a fixed member 31 by a pivoting hook 30 and abuts a pivoting abutment member 38. The arm may be released by a lever 36 and linkage 34, 35, 33. In an alternative embodiment the members which the end of the arm abuts and to which it is hooked are combined in a single member.
Patent GB-1278310-A (GB)
Title: Method of and means for measuring the speed of moving elongated members of electrically conducting material
Inventor: REIBRING GOERAN
IPC: G01P3/50
Filed: 1969-11-05
Abstract: 1278310 Speedometers ALLMANNA SVENSKA ELEKTRISKA AB 5 Nov 1969 [6 Nov 1968] 54191/69 Heading G1K The speed of an elongated member 11 of electrically conducting material moving in the direction 12 of its longitudinal extension is measured by arranging for the member 11 to pass through an air gap of a magnet 13 and measuring the force F by measuring the movement of the magnet in opposition to a spring 14. The member 11 may be a strip of steel or aluminium being rolled in a rolling mill. The magnet 13 may be a permanent magnet or an electromagnet. The movement of the magnet 13 is measured directly or by measuring air-pressure controlled by throttling a jet of air or by using an electric bridge circuit. Different magnetic measuring fields may be obtained by varying the current strength and/or rate of ampere turns of an electromagnet or by using magnetic shunts or replacements with permanent magnets.
Patent GB-1487959-A (GB)
Title: Gas-discharge display panel
IPC: H01J17/49
Filed: 1974-12-17
Abstract: 1487959 Gas-discharge panel PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 17 Dec 1974 [20 Dec 1973] 54442/74 Heading C1M A gas-discharge panel comprises a plurality of parallel grooves 8 in opposed plates 1 and 2, at least the electrodes constituting cathodes 4 being disposed within grooves 8, and being secured to bottom plate 1 throughout the effective length of the cathodes 4 by sealing glass 6. Each cathode 4 may be separated from the wall of its groove 8 by a gap. Anodes 5 may be similarly sealed to top plate 2 (e.g. of glass) by enamel 6. An intermediate member 3 may optionally be disposed between plates 1 and 2. Bottom plate 1 may be of glass, ceramic or anodized aluminium, and cathodes 4 may consist of (by weight) 5% Cr, 47À5 Fe and 47À5% Ni. The sealing glass may be a devitrifiable glass available under the name "Pyroceram", which softens at below 440‹ C.
Patent GB-546713-A (GB)
Abstract: 546,713. Cash registers. KOOPERATIVA FORBUNDET FORENING U.P.A., VIGBORG, K. M., and BRATT, K. F. Dec. 4, 1940, No. 17231. [Class 106 (i)] In machines having amount, clerks', and transaction keys which determine the movement of differential setting members, at least one member is movable transversely,to the direction of motion of the differential members and is controlled by the clerks' and transaction keys, so that when none of these is depressed, the differentials of the amount keys are locked in "zero" position. The differential racks 1, 2 for the amount and clerks' keys are moved by springs to an extent corresponding to the value of the key which co-operates with stops 5 on the rack after the release member 3 has been operated and the machine started. The keys are retained depressed by a spring detent 7 associated with each key bank 6 into recesses 8 in which a pin 10 on the key stem 9 enters. On depression of a key, a projection 11 actuates a bail 12 from which the rack release member 3 is formed. On a shaft 18 are fixed plates 13 carrying rods 14, 15. When the machine has started, the rod 14 enters recesses 16 in detents 7 and prevents actuation of keys not already actuated. The rod 15 moves the detent 7 to release depressed keys. The member moving transversely of the differential members is the rail 20 displaceable on a stationary rail 21 and provided with five T-shaped projections 22, two stops 23 and a cam surface 24. The latter co-operates with a cam surface 25 on a plate 26 rockable on the shaft 18 and having an angle portion 27 held by a spring 28 against a roller 30 on lever 29. During the cycle of the machine the lever 29 is rocked by a cam 32. A second plate 33 on the shaft 18 has a cam surface 34. Fixed to the shaft 18 is an arm 35 pulled by a spring 36 against the roller 30. The plate 33 is pivoted by the pin 37 to a part 38 which moves up at the zeroizing of the machine as in Specification 535,265. At the start, the roller 39 is on cam surface 40, the lever bearing on plates 26, 35 keeps the rail 20 and its adjuncts 22, 23 in the position shown in Fig. 4, while the rod 14 is in the position shown in dotted lines in Fig. 6. The keys may now be depressed and also the error correction key 19 may release an already depressed key. As the cam 32 rotates in the direction of the arrow, the rod 14 enters recesses 16 and locks the detents 7. The cam surface 25 of plate 26 also disconnects with surface 24. If an assistant's or transaction key has been depressed the member 3 of that bank will prevent the rail 20 being moved by its spring and the differentials will take up position according to keys depressed. The rod 15 releases depressed keys. If only amount keys had been depressed, the rail 20 would assume the position shown in dot-dash lines, Fig. 1, and the differentials would remain in zero position. Specifications 509,441, 509,450, 523,687, [Group XXXII], and 518,617 also are referred to.
Patent GB-1497798-A (GB)
Title: Tip seal dispensing valve
IPC: B05B9/04
Filed: 1974-12-19
Abstract: 1497798 Pressurized aerosol dispensers E J TOWNS 19 Dec 1974 [19 Dec 1973] 54849/74 Heading F1R [Also in Division B8]  In a dispensing valve for a tooth-paste tube an outer tubular member 19 slides on the outside of a hollow body member 13 to open a hole 21 which, in the valve closed condition is obtained by a central stem 17 attached to the valve body. A rubber member 23 attaches the outer member 19 to the body and a reduced thickness portion 33 stretches when the tube is squeezed to open the valve as internal pressure is applied to the outer member as indicated by the arrows 37. The tip of the stem is preferably tapered and the hole 21 tapered to match. The valve body 13 and the outer member 19 are preferably polypropylene and the stem 17 may be moulded integrally with the body. In an alternative embodiment, Fig. 4, for an aerosol container a rubber grommet 47, inserted in a flanged opening in a container, provides the stretching member. The valve is opened by tilting the outer member 19, to break a seal between the base of the grommet and a disc-like portion 65 at the inner end of the valve body 59, and at the same time sliding it upward to open the hole 21. When the valve is thus opened a piston 103 slides up the stem 17 and fluid flows through a number of small orifices 107 until the piston contacts a projection 101 within the valve body to seal off further flow. The valve thus provides a metering function. The valve body may be made of stiff ABS.
Patent GB-1209948-A (GB)
Title: Contact-type borehole logging apparatus
IPC: E21B47/00
Filed: 1967-12-05
Abstract: 1,209,948. Borehole logging. PAN GEO ATLAS CORP. Dec. 5, 1967 [Jan. 6, 1967], No. 55317/67. Heading G1N. In a contact logging apparatus of the kind in which the electrode assembly is mounted on a retractable linkage, which in use is spring- urged into the expanded position forcing the electrodes against the wall, the electrode assembly is pivotally mounted (at 38 Figs.4, 5, 7 not shown) about an axis parallel to the bore, for limited movement, so that the assembly can align itself with the borehole wall when the bore is not truly circular Fig. 3. The electrodes are formed as a pair of tapered blades (56) Figs. 4..7, (not shown) to cut into the walls and make good contact, and surrounded by a resilient pad (54) e.g. of rubber or plastics to seal the electrode against the wall and prevent current leakage through the borehole fluid.
Patent GB-1455702-A (GB)
Title: Vibratory bowl-type parts feeder
IPC: B65G27/32
Filed: 1973-11-29
Abstract: 1455702 Adjustably mounting vibrators W C BURGESS Jnr 29 Nov 1973 [6 Dec 1972] 55511/73 Heading F2X A vibratory bowl 10 has a trackway 16 extending from its bottom 14 to a discharge point 18 thereof along which ports are fed under the action of vibrations applied to a drive plate 22 on which the bowl 10 is mounted, the latter being connected by means of springs 26 to a base 24, the vibrations being generated by a free-piston vibration inducing device 30 which is connected to a mounting block 34 attached to the plate 22, the device 30 being rotatable about the axis of a bolt 46 in a vertical plane, which is spaced from the central axis (32) of the apparatus, Fig. 2 (not shown). As the bowl 10 may include counterbalancing weights to avoid " dead spots " along the trackway 16 the bowl 10 has an asymmetric weight distribution and the purpose of the device 30 is to produce an asymmetric force vector which is directed to the bowl 10 in such an attitude as to closely approach balance of the asymmetric vector caused by the asymmetric weight distribution of the bowl 10. The fact that the device 30 is rotatable about the axis of the bolt 46 provides for the determination of the optimum angle for a given bowl 10, as any one of several different bowls, each having its own particular asymmetric weight distribution, can be mounted on the plate 22, the device 30 being fixed in its optimum position by means of a lock washer (48), Fig. 2 (not shown). The device 30 comprises a free piston enclosed in a casing, the piston being movable under gas pressure supplied to and exhausted from the casing at points 38 and 42 respectively. Specification 3,367,480 is referred to.
Patent GB-1402779-A (GB)
Title: Shoe cleaning appliance
IPC: A47L23/02
Filed: 1972-12-01
Abstract: 1402779 Shoe cleaner LICENTIA PATENT-VERWALTUNGS-GmbH 1 Dec 1972 [2 Dec 1971 6 June 1972 13 June 1972] 55621/72 Heading A4F In a shoe cleaning appliance, pivotal movement of an elongate shoe platform 23, which is positioned between two roller brushes 8, effects movement of the brushes towards each other, the extent of movement depending on the extent of the pivoting of the platform 23. The brushes 8 are mounted at the pivoting end in stationary bearings 17 and at their opposite end in horizontally slideable bearings 19 which are biased apart, being connected to a traction pulley on the platform 23 by a cable and pulley arrangement. The brushes 8 are driven by a motor 15 situated in a dust free space 6, the motor being actuated by the initial depression of the spring-biased platform 23. A dust pan 14 is situated beneath the brushes 8.
Patent GB-1375449-A (GB)
IPC: F16K31/06
Filed: 1972-12-01
Abstract: 1375449 Valves ROHE SCIENTIFIC CORP 1 Dec 1972 [2 Dec 1971] 55681/72 Heading F2V Flow from an inlet 66 to an outlet 63, is controlled by elastomeric diaphragm valve member 36 which is connected to an armature 50 operable under the control of an electromagnet 70. The diaphragm, in addition to its valvingfunction, defines one side of each of a water-filled actuator chamber 35 and a valve seat chamber 60. The latter contains a valve seat which tapers upwardly (as seen in the drawing) from an annular recess. The valve seat is formed in a body 11 of rigid plastics material which is contained in an aluminium shell 17. Such shell contains an adjustable unit 13 which clamps the actuator chamber shell 27 and hence the diaphragm. Armature 50 is made of ferromagnetic material. The diaphragm changes shape during operation in such a way that the actuator and valve seat chambers have constant volumes. Thus the valve does not displace any fluid when moving from an open to a closed position, or vice versa.
Patent GB-1178130-A (GB)
Title: Improvements relating to Semiconductor Strain Transducers
Inventor: THORP WILLIAM
IPC: G01L9/00
Filed: 1967-12-08
Abstract: 1,178,130. Pressure-sensitive resistors. FERRANTI Ltd. 3 Dec., 1968 [8 Dec., 1967], No. 55819/67. Heading H1K.  A pressure-sensitive transducer comprising a plurality of piezo-resistors formed in one face of a semi-conductor wafer and defined by PN junctions is provided on its opposite face with a conductive coating overlying an insulating layer. The insulating layer prevents D.C. earth loop currents and the conductive layer is connected to a potential source (e.g. earth) to provide a screen for A.C. currents. A wafe 11 of N-type Si doped with Sb is is provided with an epitaxially deposited layer of P-type Si doped with B. A silicon dioxide mask is formed on the epitaxial layer and P is diffused-in, the remaining parts of the P-type layer constituting a plurality of piezo-resistors. Four straight resistors are provided at the centre of the wafer and four U-shaped resistors are provided near the periphery of the wafer in line with the central resistors. The ends (14) of the resistors are connected by conductive tracks (15) to contact points (16) on a neutral circle of the wafer and bridging members (17) forming parts of the U-shaped resistors are produced by depositing Al over the surface by masking and etching. The wafer is mounted in a housing. Fig. 2, by alloying a Ni-Fe alloy ring 22 to the edge of the wafer 11 and securing this ring to a Ti body 20 by means of epoxy resin so that the wafer is insulated from the body. Two of the inner resistors and two of the outer resistors are selected for their matched characteristics and are connected in a bridge circuit by Au leads 18 thermo-compression bonded to the contact points 16 and gold-ball bonded to Cu leads 19. A layer 28 of SiO 2  is deposited on the face of wafer 11 opposite to the resistors before it is mounted in the housing and after mounting a layer 29 of Ti is deposited over the insulating layer 28 and into contact with the housing body 20. Temperaturesensitive elements and a thin film trimming resistor (not shown) are provided in the housing and the temperature-sensitive elements may be formed in the wafer 11. Ancillary apparatus such as an amplifier or voltage regulator may also be mounted in the housing. The metal screening layer may be of Ti, Au, A1 or Pt and may be produced by evaporation or by chemical deposition.
Patent GB-1328548-A (GB)
Title: Microwave heating apparatus
IPC: H05B6/72
Filed: 1970-11-25
Abstract: 1328548 Microwave oven MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 25 Nov 1970 [1 Dec 1969] 56152/70 Heading H5H A microwave oven is evenly energized by transmitting the microwave output of oscillator 21 via a first waveguide 7 and a second waveguide comprising coaxial conductors 12, 17 to the oven cavity 1, the inner conductor 17 being secured to a rotary shaft 15 of a blade mode stirrer 20 and the outer conductor 12 being fixed in relation to the cavity and being designed to modify the energy distribution and make it more nearly uniform. Although the mode stirrer 20 would provide a uniform energy distribution in a circular cavity the energy distribution modifying means is required to allow for shapes other than circular e.g. square, rectangular or hexagonal. As shown, conductor 12 is provided with four angular spaced projections 14 which lie on the diagonals of the rectangular cavity. In Figs. 3, 4 and 5 (not shown) the conductor 12 is provided with metal pins lying on the diagonals of the cavities. In other embodiments notches are formed in the bottom of conductor 12, portions of the conductor 12 are thickened, or apertures are formed in conductor 12.
Patent GB-1366499-A (GB)
Title: Breathing apparatus
IPC: A61M16/00
Filed: 1971-12-06
Abstract: 1366499 Valves UNIVERSITA KARLOVA 6 Dec 1971 [8 Dec 1970] 56427/71 Heading F2V [Also in Divisions A5 and G3] A device for controlling the supply of gas to a patient may operate in a mode such as to enable the gas to be inhaled and exhaled by the patient unaided or in a mode to assist or induce inhalation of the gas. The device comprises a housing having first and second compartments A, B separated by a diaphragm 2 incorporating a one-way vent-valve 3. The first compartment A communicates with the atmosphere via openings 12 and the second compartment B interconnects a mouth piece 1 and a gas supply valve. This gas supply valve comprises a valve element 7 connected to a valve casing by a secondary diaphragm 6, the valve casing being thereby divided into first and second chambers a, b which are interconnected by a small orifice 11 in the valve element. The first and second valve-casing chambers communicate with the second compartment of the housing via openings 5 and 8 respectively, the opening 5 being closable by one end of a pivoted lever 4. The geometry of the valve is such that when the opening 5 is occluded the valve element is forced against its seat and shuts off the flow of gas from conduit 10, whilst when the opening 5 is not occluded the valve element unseats and gas flows freely into the second compartment B of the housing. A patient inhaling through mouthpiece 1 causes the diaphragm to move the lever 4, against the compression spring 9, and uncover opening 5, which in turn causes the valve element 7 to unseat and admit gas to the patient's lungs. When the patient exhales the diaphragm 2 ceases to act on the lever 4, the compression spring 9 closes the opening 5 and gas flow stops; the exhaled gases escaping via the one-way vent valve 3. A solenoid operated plunger, activated by a pulse generator 16 may engage the diaphragm and move it to the inhale position, simultaneously holding the vent valve 3 closed and opening the gas supply valve to cause gas under pressure to enter the lungs. The pulse generator 16 may be triggered either by a time switch 17, to induce inhalation, or by a flow responsive device 18 to assist breathing.
Patent GB-1208193-A (GB)
Title: Hydraulic control device for building up variable pressure in clutches or brakes acting as shift elements in a gearbox adapted to be shifted under load
IPC: F16H61/08
Filed: 1968-11-28
Abstract: 1,208,193. Variable-ratio gears. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. 28 Nov., 1968 [1 Dec., 1967; 22 Dec., 1967], No. 56479/68. Heading F2D. A clutch or brake of a planetary gear is engaged hydraulically, the rate of engagement being controlled by a valve 110 selectively connecting a supply passage 215 and a vent chamber 115 to a passage 126 leading to a clutch or brake chamber K. The left-hand end of the valve is connected to the clutch passage 126 by a throttle 126a and the right-hand end is loaded by spring 122 which is loaded in turn by clutch pressure acting through a throttle 125a on the right-hand side of a piston 124 and opposed by engine torque or engine or vehicle speed responsive pressure supplied through a passage 222 to the left-hand side of the piston 124. The supply pressure 215 can be constant or dependent on engine loading. The arrangement gives rapid light engagement of the clutch or brake followed by controlled increase to full application. A one-way valve 127a permits rapid disengagement. In a modification (Fig. 7) for controlling two brakes B1F, B1 which are to be applied sequentially, the valve spool 151 has lands controlling connection from a brake passage 166 to a supply passage 214 and to a vent chamber 155, and also controlling connection of a brake line 177 to a supply line 216, the valve being biased to the right by brake pressure 166 supplied through a throttle 166a and being biased to the left by a spring 162 loaded by brake pressure 166 supplied through a throttle 165a and opposed by torque or speed responsive pressure 222. The arrangement is such that after initial application of both brakes the valve is shifted rightwardly to cut off the supply to brake B1 and throttle the supply to brake B1F. When the pressure supplied to the brake B1F has risen sufficiently the piston 161 and valve 151 are shifted leftwardly to open brake B1 to supply 216 to complete application of this brake.