baber/WOPTO huggingface dataset:
Patent GB-1040934-A (GB)
Title: Improvements in or relating to automatic telephone systems
Inventor: BROWELL LESLIE JAMES
IPC: H04Q3/00
Filed: 1962-07-05
Abstract: 1,040,934. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. June 21, 1963 [July 5, 1962], No. 25800/62. Heading H4K. In a cross-bar system of the so-called selfsteering kind having link-connected first stage and second stage selectors, as described in Specification 890,235, the arrangements for the control of the selectors are simplified. A relay is provided for each first stage selector which when energized prepares operating paths for the select magnets of that selector relevant to links of the second stage selectors and extends markings to a set of relays each concerned with an outlet of every first stage selector. Arrangements for the control of the selectors comprise chains of marking relays (XA ... XN, YA ... YN) operating on a one-at-a-time basis by backward markings from the second stage selectors.
Patent GB-1374215-A (GB)
Title: Sense amplifier
IPC: G11C11/409
Filed: 1973-05-30
Abstract: 1374215 F.E.T. storage circuits INTERNATIONAL BUSINESS MACHINES CORP 30 May 1973 [30 June 1972] 25814/73 Heading H3T [Also in Division G4] An amplifier 2 (Fig. 1) for sensing information in the form of stored charge in one of a plurality of cells 10 in a bit sense line element 6A or 6B also receives an input from a reference capacitor connected to the other bit sense line element. As described a particular bit sense line comprising the elements 6A, 6B is selected by a bit line address decoder and driver block 7, word lines 8, having at their intersection with the bit sense lines a storage device 10 in the form of a capacitor CS (Fig. 3), being selected by word line address decoder and driver 9. Word lines 12A, 12B are connected to reference cells 11A, 11B including the reference capacitance (C ref , Fig. 2, not shown). Operation.-Initially word line capacitances CB/S in bucket brigade sense amplifiers 5 connected to each of the lines 6A, 6B are precharged by actuating field effect transistors Q1, Q2 so that the capacitance is charged to a level equal to the potential of pulse source V#1 less the threshold voltage VT of FET Q1. Output capacitance CO simultaneously charges to the value V charge  since initially pulse source V#2 is at zero. To read out one of the FETs Q3 in one of the bit line elements, e.g. 6A is actuated by a signal from the word line driver 9. If the associated storage capacitance CS is charged no charge is then transferred from the bit line capacitance CB/S. Subsequently pulse sources V# and V# are simultaneously actuated during a bucket brigade transfer period but if capacitor CB/S still charged transistor Q 1 does not switch on so that a potential V rcf  is applied to one input of differential amplifier 2. If however the storage capacitor CS is uncharged when transistor Q3 is actuated capacitor CB/S discharges to charge the storage capacitor so that during the subsequent bucket brigade transfer period, transistor Q1 is actuated and charge is transferred from the output capacitor CO to capacitor CB/S so that a zero potential is applied to the differential amplifier. At the other input of the differential amplifier a signal is derived from the reference cell 11B of the other bit line 6B by selection of field effect transistor (R1, Fig. 2, not shown) by the associated line (12B). When the transistor is actuated during the read period charge is transferred to the reference capacitor from the bit line capacitor. During the bucket brigade transfer period capacitor CO charges the bit line capacitor and as a result loses approximately half its charge so that a potential of V ref/2  is applied to the differential amplifier to provide a reference level. After read out the selected cell is refreshed via lead 16 or 17. The transistors may be n or p channel field effect transistors and the capacitors may be gate capacitances of field effect transistors.
Patent GB-888726-A (GB)
Title: Wrapping machine
IPC: B65B9/06
Filed: 1960-07-25
Abstract: 888,726. Seaming non-metallic sheet material. ANDERSON, S. F., and ANDERSON, R. F. July 25, 1960 [Dec. 14, 1959], No. 25821/60. Class 42 (1). [Also in Group XVII] A web of material is tubed about articles laid upon it and sealed and crimped between them. The machine so forming packages (see Group XVII) operates on several webs simultaneously advancing in parallel lanes. Each tube seam projects from the tube and passes between parallel plates 84 beneath a common heater bar 82. Spring members 88 project through oblique slots 89 in the plates to engage the seam, sealing it and tending to pull it upwards (Figs. 7, 8). The seams pass through slots in a tube (not shown) in which they are aircooled. The transverse seams are formed by a preheater bar 135 and sealing jaws 138, 158 mounted on arms 141, 142, 149 oscillated to give the members circular motion. The jaws 138, 158 seal the preheated areas between the articles, the seals being then crimped and cooled by bars 174, 187 on opposed conveyers 171, 172.
Patent GB-807127-A (GB)
Title: Improvements in or relating to electric tubes for use as backward wave oscillators
IPC: H01J25/40
Filed: 1956-08-23
Abstract: 807,127. Backward-wave oscillator tubes. M-O VALVE CO. Ltd., and WILLSHAW, W. E. Aug. 23, 1957 [Aug. 23, 1956], No. 25858/56. Class 39(1). A magnetron-type backward-wave oscillator with a circular delay line 4 and a central electrode 12 has the electrons injected at one end of the interaction space from an external annular cathode 14. The electrons emitted by the cathode are focused into an annular beam by electrodes 17 and 18. Parts of the tube may be coated with a substance such as titanium to reduce the emission of secondary electrons into the interaction space. The delay line may have a reflectionless termination of lossy material or may be connected to an external source of energy at the desired oscillation frequency to provide frequency locking. The line is so designed that its circumferential electrical length equals approximately an integral number of wavelengths, whatever the frequency, to avoid interference with the bunching of the electron beam.
Patent GB-504826-A (GB)
Title: Improvements in or relating to convertible coal and gas fires
IPC: F24B1/18
Filed: 1937-09-23
Abstract: 504,826. Convertible solid fuel and gas fires. IMPERIAL CHEMICAL INDUSTRIES, Ltd., and TURNER, F. E. Sept. 23, 1937, No. 25874. [Class 126] In a convertible, gas fire and solid-fuel fireplace, with a gas fire 4 hinged about a horiiontal axis 5 near its base so that when a solid-fuel fire is to be used the gas fire can be lowered into a recess 3 in the hearth, a front plate 10 hinged at 11 about its lower edge to the gas fire 4 covers the recess 3 when the gas fire is in use. The plate 10 slides down into the recess when the gas fire is lowered, its corners sliding on inclined guide members 12 or in slots on the side walls of the recess. Alternatively, the plate 10 may be secured against the face of the gas fire radiants when the gas fire is to be lowered into the recess. The gas supply to the gas fire may be cut off automatically when the gas fire is in the recess.
Patent GB-338846-A (GB)
Title: Automatic controlling device for sewing machines
IPC: D05B65/00
Filed: 1929-12-27
Abstract: 338,846. Fairweather, W., (Singer Manufacturing Co.). Dec. 27, 1929. Divided on 335,846. Button.hole and eyelet-hole sewing-machines.-A machine for sewing groups of stitches as described in Specification 335,846 of even date has a manually controlled device independent of the sewing-machine for quickly and automatically operating the work clamp, stop-motion device, cutter and pull off. The details of the machine are identical with those described in Specification 335,846. The device is mounted on its own frame 115 and may be secured to a power bench 23 alongside the sewing- machine in position for ready connection of its parts to the parts of the machine. The device comprises a shaft connectable to by a treadle-controlled one-rotation clutch-device 122 to a continuously running pulley 129 carried by the frame 115, the shaft being geared in 2:1 relation to a second parallel shaft 119 which is thereby caused to perform a half-rotation each time the clutch is tripped. A crank' on the second shaft 119 is connected to the sewing machine controls. To start the machine, the operator depresses the pedal 139 thereby swinging the gate on the shaft 135 away from the clutchdisc 122, releasing the slide-block 124 from the curved edge of the plate 141 when it is projected outwardly by a spring 127 to carry the clutch teeth 126 into the path of the rotary clutch teeth 128, so connecting the first shaft to the beltpulley 129 for a single rotation. The clutch device is then automatically disengaged leaving the driver shaft 119 at a predetermined position at the completion of a single rotation.
Patent GB-942321-A (GB)
Title: Improvements in or relating to universal joints
IPC: F16D3/28
Filed: 1960-07-26
Abstract: 942,321. Universal joints. RUBBER PLASTICS Ltd., and B. R. KNOTT. July 7, 1961 [July 26, 1960; Aug. 3, 1960; Dec. 12, 1960], Nos. 25945/60, 26889/60 and 42656/60. Heading F2U. A Hooke's joint comprises shaft forks freely pivoted about mutually perpendicular axes on a central spider, the joint being rendered yieldable under strain by providing bushes of resilient material between the forks and the spider. In one embodiment a spider has pins 5 freely pivotable in bushes 7 of a resilient material such as a hard grade polyurethane bonded in spherical housings provided in the forked ends of driving and driven shafts (not shown) In order to avoid possible overheating, the bushes can be a free fit inside the spherical housings and the spider pins 5 be bonded to the bushes so that heat developed by friction will be conducted away through the forks. Bonding may be effected by a polyisocyanate bonding agent. The joint may be lubricated by supplying lubricant through grease nipples 13 and bores in the pins which register with drillings 14 in the bushes, or the joint may be packed with grease upon assembly, or a molybdenum disulphide loaded polyurethane may be employed. The spherical housing for a bush may be formed by hemispherical recesses in an arm of a fork and in a cap 8 bolted thereto, alternatively each housing may be formed by hemispherical recesses in two sheet metal stampings which are secured together and bolted to a fork arm. In another modification the forks have inwardly directed pins and the spider carries the spherical housings.
Patent GB-718480-A (GB)
Title: Improvements in or relating to devices for connecting an agriculatural implement to a draft vehicle
IPC: A01B59/06
Filed: 1952-10-17
Abstract: 718,480. Agricultural Implements. ALLIS-CHALMERS MANUFACTURING CO. Oct. 17, 1952 [Nov. 1, 1951], No. 26164/52. Class 6 (1) A device for connecting an agricultural implement such as a plough 1 to a tractor comprises a bifurcated member S pivotally mounted on the tractor and provided with lugs 7 and holes 10 for receiving a pin. The plough is provided with a tongue member 6 formed with an oval hole 17 and a tapered nose piece 13 which acts to guide the tongue between the lugs 7, a rib 16 on the nose piece sliding along the lower surface 8a of the member 5. The tongue member is provided with projections 18 which serve to locate the tongue structure between the lugs 7 so that a pin may be inserted through holes 10, 17. A coil spring 37 is located between the member 5 and a depending abutment 36 on the rear axle structure and a suitable control mechanism is associated with the member 5 for the purpose of automatic draft regulation. The tongue member 6 is pivotally mounted by means of a pin 20 on a pull bar 22. The plough beam 26 is pivoted on a shaft 27 and is adjusted relative to the pull bar 22 by means ot a screw device 28 operated by a handle 29. The plough is raised by means of lift links 31 connected to arms 32 operated by hydraulic rams 30.
Patent GB-188874-A (GB)
Title: Improvements in or relating to sparking plugs of internal combustion engines
IPC: H01T13/38
Filed: 1921-10-26
Abstract: 188,874. Shute, W. H. Oct. 26, 1921. Sparking-plugs.-The insulator is formed at its inner end with an enlargement 3 which acts as a baffle protecting the interior of the plug; if the end of the plug becomes covered with deposit a spark gap is formed between the enlargement and the casing. According to the Provisional Specification, the central electrode may be fitted or formed with a nickel-steel head which acts as a baffle protecting the end of the insulation.
Patent GB-1465330-A (GB)
Title: Flow regulator for air ducting
IPC: F24F11/04
Filed: 1974-06-13
Abstract: 1465330 Valves E SIEGWART 13 June 1974 [3 July 1973] 26199/74 Heading F2V [Also in Division F4] A flow regulator for air ducting comprises an angled flap type valve 10/11 which can be rotated against a spring force by air flow in a closing direction. The valve is balanced by counter weights 6. In the open position the portion 11 rests against a stop 9 and as flow increases the torque builds up on portion 11 to rotate the valve about the shaft axis 4 against the force of a helical spring 21. The spring characteristic is such that the torque required to rotate the valve increases as the valve closes. The spring housing 13 may be rotated about the part 12 for adjusting the torque required to move the valve. Torque characteristics may be varied by different methods of attaching the spring to the shaft 4 (Figs. 3, 5 and 6).
Patent GB-789448-A (GB)
Title: Improvements in lubrication
Inventor: SEMMENS PETER WILLIAM BRETT
IPC: C07D213/20
Filed: 1954-09-10
Abstract: Organic polyphosphates are employed as ingredients of lubricating compositions (see Group III), the polyphosphates having a linear or substantially linear polyphosphate anion and a quaternary ammonium cation in which the nitrogen atom is attached to at least one radicle which contains at least one alkyl group having 6 or more carbon atoms.  In an example, potassium dihydrogen orthophosphate is heated at 350 DEG  C. for 30 mins. and then at 675 DEG  C. for 45 mins., an aqueous solution of cetyl pyridinium bromide is stirred with the potassium polyphosphate thus prepared, whereupon cetyl pyridinium polyphosphate separates as a grease-like solid.  It is stated that cetyl trimethyl ammonium polyphosphate, didecyl dimethyl ammonium polyphosphate, lauryl benzyl dimethyl ammonium polyphosphate, beta-p-tert. octyl phenoxyethyl benzyl diethyl ammonium polyphosphate, tetradecyl pyridinium polyphosphate, stearamidomethyl pyridinium polyphosphate and di-n-octyl dimethyl ammonium polyphosphate may be prepared in a similar manner.ALSO:A lubricating composition suitable for use where direct contact between relatively moving surfaces is liable to occur, as in the case of metal bearing surfaces, comprises one or more polyphosphates and a liquid or solid vehicle in which the polyphosphate is soluble or dispersible, each polyphosphate having a linear or substantially linear polyphosphate anion and a quaternary ammonium cation in which the nitrogen atom is attached to at least one radicle which contains at least one alkyl group having 6 or more carbon atoms.  Suitable quaternary ammonium groups are cetyl trimethyl ammonium, cetyl pyridinium, tetradecyl pyridinium, didecyl dimethyl ammonium, lauryl benzyl dimethyl ammonium, dioctyl dimethyl ammonium, beta-p-tert.-octyl phenoxyethyl benzyldiethyl ammonium and stearamido methyl pyridinium.  Vehicles mentioned are mineral oils (e.g. liquid paraffin) or greases, petroleum jelly, siloxane liquids or solids (e.g. liquid polymethyl-phenyl siloxane), vegetable oils (e.g. castor oil) esters, soaps, polyalkylene glycols, mixtures of substantially completely halogenated aromatic hydrocarbons (e.g. the material known as "Florube 1"; the word "Florube" is a Registered Trade Mark), or blends of these vehicles.
Patent GB-1323971-A (GB)
Title: Supervising and controlling processes
IPC: G05B1/02
Filed: 1971-04-19
Abstract: 1323971 Process control LEYBOLD - HERAEUS - VERWALTUNG GmbH 19 April 1971 [3 April 1970] 26280/71 Heading G4H A process, e.g. a freeze drying process, is controlled using a digital frequency metering arrangement in which a variable frequency representing a parameter of the process is measured at predetermined times, the first measurement being stored and compared with succeeding measurements, and in which a control signal is generated when the difference between the stored value and the measured value at a subsequent time exceeds a predetermined value. A further control signal may be generated by subjecting the measured frequencies to a digital-analogue conversion (not described in detail). As described the variable frequency f representing a process parameter is passed via a multiplier 2, a mixer 4, to the other input of which a reference frequency is applied, and a sampling gate 14 controlled by a timer 5, to a digital counter 7. The count in the counter at the end of the first measuring interval is passed via a gate 15 also controlled by a timer to a data store. Successive counts are then compared in a comparator 9 with the contents of the store. The comparator produces an output when the counter and store contents become equal and any excess pulses pass via gate 16 to a further counter 10. The contents of counter 10 are compared to the contents of a store 12, which are preset to a value depending on the allowable difference between the first and any subsequent count, in a comparator 11. The comparator output is used to control, e.g. shut down, the process. The Specification states that a D-A converter 13 may be connected to the counter 7 to produce a signal which is used to further control, e.g. the speed of, the process.
Patent GB-427076-A (GB)
Title: Improvements in or relating to zirconium alloys
IPC: C22C16/00
Filed: 1934-09-13
Abstract: In making zirconium alloys by reduction with carbon in an electric furnace, the charge of silica and zirconium ore or compound is first so proportioned that a zirconium-silicon alloy containing more zirconium than silicon is produced, whereafter, in the presence of the zirconium carbide which has accumulated in the furnace there is reduced a charge of such composition that a zirconium-silicon alloy containing more silicon than zirconium is produced, the zirconium carbide being thereby removed from the furnace.  The charge in the second part of the process may be a mixture of silica and zirconium ore or compound, or if rapid removal of the zirconium carbide is desired it may contain no zirconium ore or compound.
Patent GB-255013-A (GB)
Title: Receiving apparatus for wireless telegraphy and telephony
IPC: H04B1/08
Filed: 1926-09-02
Abstract: 255,013. Ellis, G. B., (Sachsenwerk Lichtund Kraft-Akt.-Ges.). Oct. 21, 1925. Drawings to Specification. Receiving sets, construction of.-Interchangeable inductance coil containers are formed as drawers or like parts, which are complete in themselves and are adapted to be inserted into a cabinet so as to form part of a wireless receiving set. Current is supplied to the coils by way of contact springs and the like. and the aerial and earth plugs are inserted into sockets in the drawer, alternative sockets enabling an aerial transformed to be used or not as desired.
Patent GB-843072-A (GB)
Title: Apparatus for laminating glass assemblies
IPC: B32B17/10
Filed: 1958-08-18
Abstract: 843,072. Laminating apparatus. PITTSBURGH PLATE GLASS CO. Aug. 18, 1958 [Sept. 13, 1957; Dec. 16, 1957], No. 26451/58. Class 140. Apparatus for conveying pairs of glass sheets interleaved with thermoplastic sheets, for example, laminated wind-shields, for a purpose such as preliminary heat-bonding, while maintaining a vacuum between the sheets by a longitudinally split tube secured around their edges and connected to a vacuum source, is characterized by vacuum tanks which are movable in a cyclic path including two stations at one of which they are connected to and at the other disconnected from means for evacuating them. As shown, interconnected pairs of vacuum tanks 28, 34, mounted on an endless chain conveyer 15, are moved on the upper run of the conveyer into, and on the lower run out of, an oven 46. A carriage 50 carrying a vacuum pump and running on rails between the upper and lower run of the conveyer, is self-driven by an electric motor towards the oven in synchronism with two upper pairs of vacuum tanks, and is then coupled to and returned with two lower pairs of tanks (the motor being declutched), the coupling means comprising vacuum cups, which are connected to the vacuum pump and mounted on the carriage, and which engage plates such as 92 connected through central pipes 92a with the tanks. Switches, tripped during the movement of the carriage, control its forward movement, the declutching of the motor, and the operation of the vacuum connections. All the pairs of vacuum tanks are interconnected and are thus re-evacuated, if necessary, on each return movement of the carriage. On their upper run the pairs of tanks support glass laminate assemblies C, placed thereon by an operator who also secures the peripheral vacuum-applying tubes to 40 around the assemblies and connects them to the tanks by flexible couplings 41. In a modified apparatus no carriage is provided and the vacuum in the tanks is replenished through bores in the sprocket shafts of the conveyer, these bores being connected to nipples which are arranged around the shafts and are moved radially by cam action into contact with complementary nipples on the tanks as the latter move around the sprockets at the ends of their travel. In this modification the heating chamber encloses the whole of the upper part of the conveyer, part of the lower part being deflected by pulleys below the chamber. The glass assemblies passing out of the chamber are removed by an inclined gravity conveyer controlled in its movement by an adjustable brake. Specification 690,250 is referred to.
Patent GB-809937-A (GB)
Title: Improvements in or relating to deflection coils for cathode ray tubes or the like
Inventor: RIDGEWAY DENIS VICTOR
IPC: H01J29/82
Filed: 1956-08-30
Abstract: 809,937. Cathode-ray tubes. PYE Ltd. Aug. 30, 1957 [Aug. 30, 1956], No. 26550/56. Class 39(1). A mounting for a deflection or other coil of a cathode ray tube comprises a cylindrical member 4 adapted to be passed within the coil 3 and be secured rigidly thereto, one part of the member 4 being associated with a mounting 6 which has a flange co-operating with a peripheral member 8 attached to a suitable support. Preferably the plane through the flange contains the centre of gravity of the coil and the flange adjustably secured by an overlying clamping ring to the member 8 so as to permit relative rotation of the parts by the handle 14. The coil may be retained on the member 4 by a lip 5.