baber/WOPTO huggingface dataset:
Patent GB-434638-A (GB)
Title: Improvements in and relating to short wave radio communication
IPC: H04B1/16
Filed: 1935-01-16
Abstract: 434,638. Valves aud circuits for wireless reception. PINTSCH AKT.-GES., J., 71, Andreasstrasse, Berlin, and KOHL, K., 51, Burgbergstrasse, Erlangen, both in Germany. Jan. 16, 1935, No. 1476. Convention date, Jan. 16, 1934. [Classes 39 (i) and 40 (v)] Relates to means for increasing the rectifying efficiency and the amplification factor of a Barkhausen- Kurz valve. The braking- electrode 2, Fig. 2, is given a sufficiently - high negative voltage, (of the order 30 to 150 volts) to prevent any current flowing in that circuit, thus reducing damping in the main oscillatory circuit up to or near the point of selfoscillation. A resistance or transformer 6 takes off the rectified voltage. The operating voltages are also so chosen that the period of electron-oscillation is an integral multiple of the main operating frequency. In Fig. 3 the main oscillatory circuit 8 is inserted between the grid and cathode, and an auxiliary highfrequency potential is applied at 10 with the object of passing the valve through intermittent states of extra high sensitivity. The cathode and retarding electrode may be arranged at potential loops of the main oscillatory circuit, and, to ensure this, the cathode emits at one point only. In Fig. 6 the cathode 18 forms part of the oscillatory circuit which is closed by a condenser 19, the two other electrodes being connected aperiodically.
Patent GB-1420769-A (GB)
Title: Surface wave frequency discriminator
IPC: H03D3/16
Filed: 1973-01-11
Abstract: 1420769 Frequency discriminators; electromechanical filters THOMSON-CSF 11 Jan 1973 [14 Jan 1972] 1619/73 Headings H3A and H3U A frequency discriminator comprises a surface wave filter arrangement having a piezoelectric substrate 1 on which are deposited two input sets of interdigitated electrodes 2,3 6,7 and two output sets of interdigitated electrodes 4,5 8,9. The input and output set 2,3 4,5 form a band pass filter tuned to a first frequency, and the other two sets form a second bandpass filter tuned to a slightly different frequency. The outputs from the two filters are fed to a conventional detector arrangement, e.g. series diodes 10, 11 and summing amplifier 12. Alternatively, Fig. 5 (not shown), the two filter outputs may be amplified before being fed to a pair of shunt diodes (Dl, D2) connected across load resistors (R1, R2), the amplifier &c. being formed as an integrated circuit in the substrate.
Patent GB-231961-A (GB)
Title: Improvements in or relating to pressure control systems for apparatus for sterilizing and similarly treating food products and the like by heat
IPC: A23L3/10
Filed: 1924-01-21
Abstract: 231,961. Ingram, H. Jan. 21, 1924. Valves controlled by pilot or relay valves.-In apparatus for sterilizing and similarly treating food in vessels as described in Specification 229,067, having a tank containing water heated by steam coils and Bourdon tubes or like pressure gauge devices operated in accordance with the pressure and temperature in the tank and controlling electromagnets which operate valves to admit fluid to the tank from a pressure reservoir or to allow it to escape as required, the device controlled by the temperature in the tank consists of a Bourdon tube connected to a bulb 32 placed in a chamber 29 in the tank 10, the chamber 29 being filled with liquid, and the Bourdon tube and the bulb 32 being also completely filled with liquid. The valve 20 admitting pressure-fluid to the tank 10 is operated by liquid acting on a piston 88 in a cylinder 87. The liquid is admitted by a pipe 83 and normally escapes through an opening 85 to a pipe 86 without moving the piston. When the electromagnet 71 is excited by the action of the Bourdon tube it moves a valve rod 78 to close the hole 85; when the liquid operates the piston 88 to open the valve 20. The means by which the Bourdon tubes &c. operate the electromagnets are identical with those described in Specification 229,067.
Patent GB-1444283-A (GB)
Title: Implements for the displacement of crop or like material lying on the ground
IPC: A01D78/12
Filed: 1973-07-09
Abstract: 1444283 Haymakers C VAN DER LELY NV 9 July 1973 [13 July 1972] 01662/76 Divided out of 1444281 Heading A1F A rotary rake head haymaker has tines 45 pivotable on a felly 43 between different operating positions by means of links 155 and rods 152 connecting the tines to a circular ring 151 which is movable axially of the rake head shaft 27. A pin 149 locates in a slot 147 in the shaft and is moved by control rod 148. The ring can also be tilted relative to the shaft and held in position by screw clamp 159 engaging the arcuate slot 158.
Patent GB-513678-A (GB)
Title: Improvements in loud-speaking telephone circuit arrangements
IPC: H04M9/00
Filed: 1938-01-18
Abstract: 513,678. Anti-side-tone circuits. RADIO GRAMOPHONE DEVELOPMENT CO., Ltd., and DUFFELL, H. F. Jan. 18, 1938, No. 1675. [Class 40 (iv)] In a loud-speaking telephone system, the coupling between the microphone and the line comprises two parts, each consisting of a valve and output transformer, the loud-speaker being connected across the secondary of one transformer and the arrangement being such that the potential applied to the loud-speaker by this transformer due to microphone output balances the potential applied thereto by the other transformer and incidental couplings. The valves may isolate the microphone from incoming speech. As shown, the output of microphone 4, amplified at 5 if necessary, is applied to the grid circuits of valves 1, 2 having output transformers 11, 21 connected in series across the line, the loud-speaker 32 being connected across the secondary of 11. A variable resistance 7 may be used to effect balancing. Both valves may have their cathodes connected to ground directly over biasing circuits as shown for valve 2, but the bias circuit of valve 1 is preferably connected as shown by lead 8 to line 20 and thence to ground at 33, whereby the valve 1 affords amplification of incoming speech. In systems where a ground at 33 is inconvenient, wire 20 is grounded and the bias circuit of valve 1 is connected to lead 3.
Patent GB-890806-A (GB)
Title: Device for preventing involuntary movement of a motor vehicle in the direction opposite to the desired direction of travel
IPC: F16H35/10
Filed: 1959-01-16
Abstract: 890,806. Motor vehicle driving gear. REGIE NATIONALE DES USINES RENAULT. Jan. 16, 1959 [Feb. 5, 1958], No. 1678/59. Class 79(2). A device for preventing involuntary movement of a motor vehicle as gears are engaged, in the direction opposite to the desired direction of travel when the clutch is engaged, comprises a shaft driven from the clutch and connected by a unidirectional coupling to a device which allows movement in the desired direction but prevents movement in the undesired direction upto a limited value sufficient to hold the vehicle but permits movement beyond that value. A shaft 2, fast with the output shaft of the clutch rotates within the gearbox casing 1 coaxially with a shaft 8 to which it is connected by a spring 8 of square section. Relative rotation of the shafts 2 and 8 is permitted when the rotation tends to uncoil the spring and is prevented in the opposite sense. The shaft 8 is connected to a notched disc 5, the notches of which are engaged by balls 9, 10 retained in recesses 11 in the casing 1 and urged into engagement with the disc 5 by a pair of levers 13, 14 under the influence of a spring 16. A cam 17 which is controlled by the driver separates the levers 13, 14 if the driver wishes to permit the adverse motion.
Patent GB-989428-A (GB)
Title: Safety fuse for electro-magnetically wound apparatus
IPC: H01H37/76
Filed: 1962-01-17
Abstract: 989,428. Fusible cut-outs. KIENZLE UHRENFABRIKEN A.G. Jan. 17, 1962 [Nov. 8, 1961], No. 1686/62. Heading H2G. An electric fuse for electromagneticallywound mechanisms consists of a rivet 6, made of low melting-point metal and subjected to shear stress by a spring 7. The leaf spring 7 connects a voltage source to the outer coil of a magnet 8 via the rivet 6, which is thermally connected to, but electrically insulated from, the core of the magnet 8 through a plate 9. If a permanent current flows through the magnet circuit (Fig. 1, not shown), the core is heated and hence the rivet material softened, when spring 7 shears off the rivet 6 and pivots about the bend 10 to break the circuit.
Patent GB-328280-A (GB)
Title: Improvements in folding mechanisms for printing machines
IPC: B65H45/16
Filed: 1929-01-17
Abstract: 328,280. Hoe &. Co., Ltd., R., (Hoe & Co., Inc., R.). Jan. 17, 1929. Folding paper.-In folding-apparatus for highspeed printing-presses the gripper mechanism carrying the sheet into folding position is operated electrically. As applied to rotary folding-apparatus in which a blade 14 tucks the sheet between rollers 15, 16 the leading end of a printed web W is clamped to the cylinder 3 between a bar 17 carried by endless chains 19 external to the cylinder 3 and an armature 18 on the cylinder 3. In order to energize the armature 18, contacts 33 thereon are periodically connected by a plate 38 to contacts 31 on the cylinder 3 connected to the source of current. The plate 38 is carried by a lever 41 pivoted at 42 to the inside wall of the cylinder and having a roller 46 running on a cam 45 which allows the plate 38 to complete and break the armature circuit at the required times under the action of a spring 44 pressing against the lever 41. The leading edge of the web W is carried around the cylinder 3 until the knife 10 on the cutting-cylinder 8 severs the, sheet therefrom, whereupon the sheet is released by the gripper mechanism and folded by means of the blade 14. Another similar gripper-mechanism clamps the severed end of the web and the operations are repeated. Bars 28 are provided on the chains 19 to prevent the trailing end of the sheet from dropping after it has been cut from the web. The chains 19 pass over the cutting-cylinders 8 and around guide cylinders 24 - - 26 one of which is mounted in a spring-pressed bearing 27 so as to keep the chains taut. A second web W may be associated with the web W.
Patent GB-1145248-A (GB)
Title: Strip welding machine
IPC: B23K11/06
Filed: 1967-04-12
Abstract: 1,145,248. Joining strips; welding by pressure; shearing. MESSER GRIESHEIM G.m.b.H. 12 April, 1967 [14 April, 1966 (2)], No. 16828/67. Headings B3A, B3R and B3W. An apparatus for joining the ends of strips in overlapping relation comprises a pair of grippers 13, 14, 15, 16 for each strip which grip the strip and bend it out of the welding plane 22, for shearing, and bend it back after shearing so that its ends overlap, for welding. The trailing end of one strip is gripped by grippers 15, 16 and the leading end of the next strip gripped by grippers 13, 14 and the ends of the strip bent and trimmed by a pair of disc cutters 20, 21 which are adjustably mounted on a carriage guided on rails 8 as the carriage is moved obliquely across the strip. The grippers are then pivoted back one after the other so that the ends of the strips overlap and the strips are in the welding plane 23. Welding rollers 1, 2 are then moved into their operative position and the carriage 3 returned to its initial position during which the welding rollers 1, 2 resistance weld the strip ends 18, 19. A pair of pressure rollers 4, 5 on the carriage follow the welding rolls to press the ends together. The grippers are arranged mutually offset in the seam direction, Fig. 1 (not shown), as also are the cutters 20, 21. The carriage, the movement of the grippers and the welding rollers and pressure rollers are operated hydraulically in tuned sequence. The carriage is preferably moved at 6 metres/min. during the shearing stroke and returned at 2 metres/min. during the welding stroke. The strip may be steel in which case the welding is performed above the blue brittleness region.
Patent GB-771972-A (GB)
Title: Improvements in suction cleaning apparatus for removing dust or other small particles from machinery
Inventor: HOWORTH DANIEL
IPC: A47L9/10
Filed: 1955-01-21
Abstract: 771,972. Air filters. HOWORTH & SON, Ltd., D. Jan. 19, 1956 [Jan. 21, 1955], No. 1832/55. Class 8(2) An air filter comprises a receptacle B divided longitudinally by a gauze screen b into a chamber C into which a fan A discharges dust-laden air, and into a clean air chamber c' having outlets c<SP>2</SP> and an apertured plate b<SP>1</SP> spaced behind and serving to mask that portion of the gauze b nearest the fan A and thereby deflecting clean air through it in the reverse direction and so maintaining the apertures of this portion of the gauze free of dust which is collected at the end of the chamber c remote from the inlet. Such dust is removed by a suction nozzle b<SP>4</SP> mounted in a door b<SP>3</SP>. A deflector C directs dust-laden air against the masked portion of the gauze b
Patent GB-1525311-A (GB)
Title: Ignition system for internal combustion engines
IPC: F02P7/02
Filed: 1976-01-16
Abstract: 1525311 Ignition systems SOC NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION 16 Jan 1976 [17 Jan 1975] 01839/76 Heading F1B An ignition system for an I.C. engine, in the combustion chamber of which post-combustion is obtained by introducing additional air near to an electric ignition arc produced by an oscillator, Fig. 1 (not shown), controlled by the shown circuit which initiates the ignition arc in accordance with both a signal from a control sensor C 1 , C 2 , C3, C4 for each cylinder and responsive to a member K 1  rotating with the engine and with an advance signal obtained from a speed sensor C 1 ' and an inlet manifold depression sensor C 1 ", and which terminates the arc in accordance with a signal from a function generator G 1 controlled by the speed sensor C 1 '. As shown, a monostable B 1  is triggered to initiate the ignition arc by a monostable B 2 , itself triggered by ignition advance generators G2, G3 responsive to signals from speed sensor C 1 ' and inlet manifold depression sensor C 1  " respectively, and acting on a trigger device T 2  via a summation device E.
Patent GB-120312-A (GB)
Title: Improvements in Engine Starting Devices.
Inventor: WHITE ALFRED ERNEST
Filed: 1918-02-01
Abstract: 120,312. White, A. E., (Dayton Engineering Laboratories Co.). Feb. 1, 1918. Turning-gear.-In an electric starting-device, an internally threaded pinion 8 engages a screwthread on the armature shaft 2 of a motor, and is brought into initial engagement with the engine fly-wheel 12 by axial movement of the armature; when the pinion is brought fully into mesh by the action of the screw-thread, a resistance r in series with the motor is cut out by a copper ring 32 on the pinion, which engages brushes 33, 34. The switch S is then moved to engage only the contacts 22, 23, so that when the engine starts and the pinion 8 is returned automatically to the position shown, the motor circuit is completely broken.
Patent GB-269670-A (GB)
Title: Improvements in cooling cabinets for ice cream and similar substances
IPC: A23G9/22
Filed: 1926-01-22
Abstract: 269,670. Lyons & Co., Ltd., J., Bilham, P. L., and Smith, J. W. Jan. 22, 1926. Refrigerators, domestic, shop, and like.-A cooling-cabinet for storing ice-cream &c., preferably forming the body of a tricycle, comprises an outer case 2 of wood with thick cork or other insulation 5 and a zinc lining 6, fitted with removable sealed rectangular vessels 7 containing a previously frozen mixture adapted to maintain a constant temperature while melting. The vessels 7 are held in straps or pockets 24 attached to the lining 6, so that their walls are exposed to the storage spaces, and they are provided with handles 30. A perforated false bottom or stand 13 has attached thereto thin vertical partitions 14, 15 providing compartments accessible through separate openings 8, 9, 10 in the main hinged lid, these openings being closed by insulated plug lids lined with metal 18. The main lid may be supported when open by a folding strut 25, and has fitted thereto a screen comprising triangular ends 16, Fig. 4 connected by a top cross bar 21 and attached to a base removably secured to the lid. The cabinet may be secured to a vehicle by bolts 22, and has a drain pipe 17.
Patent GB-1287582-A (GB)
Title: Piperidenyl propyl heptanoate ester derivative
Inventor: LEDOUX XAVIER
IPC: C07D295/084
Filed: 1969-01-13
Abstract: 1287582 Heptanoic acid ester E R SQUIBB & SONS Inc 12 Jan 1970 [13 Jan 1969] 1936/69 Heading C2C Novel compound I is prepared by reaction of the appropriate alcohol with heptanoyl chloride. Pharmaceutical compositions comprise the compound I in conjunction with a suitable excipient and have anti-cataleptic effect.
Patent GB-371435-A (GB)
Title: Improvements in or relating to indicating and aligning mechanisms for cash registers of the key set and key operated type
IPC: G06C11/02
Filed: 1931-01-21
Abstract: 371,435. Cash registers. NATIONAL CASH REGISTER CO., Dayton, Ohio, U.S.A.-(Assignees of Shipley, B. M. ; 2021, Catalpa Drive, Dayton, Ohio, U.S.A.) Jan. 21, 1931, No. 1998. Convention date, Jan. 24, 1930. [Class 106 (i).] A key set and operated cash register has roller indicators operatively connected to a minimum-movement differential mechanism, and aligning devices, spring-operated in one direction of movement, to align the indicators and differential mechanisms respectively in set positions. The invention is described as applied to a cash register having differential mechanism of the kind described in Specification 346,465, including toothed sectors 130, Figs. 3 and 4, that are connected to roller indicators 38 through links 183, sectors 188 and pinions 189. The teeth on the differential sectors 130 are normally engaged for aligning purposes by fingers 131 fast on a shaft 132, the fingers being held in engagement by a latch 158 against the action of a spring 153 acting on an arm 155 of the shaft 132. At the beginning of an operation, a tappet 165, carried by a lever 166 connected by a link 161 to the key-coupler shaft 111, engages a stud 167 on the latch 158, the latch is disabled and' the fingers 131 move upwardly to release the differential sectors. Towards the end of the depression of the key or keys, the aligner fingers are returned to effective position by a pitman 173 that moves outwardly with the companion links 133, 134 of the minimum-movement mechanism and abuts a stud 174 on the arm 155. The tappet 165 having by this time passed the stud 167, the latch 158 is rocked by its spring 169 to retain the aligner fingers in operative position. The rocking of the latch is positively ensured by a stud 180 on the lever 166 moving into contact with an arm 182 of the latch. During the upward movement of the key or keys, the tappet wipes idly past the stud 167. The indicators are arranged in pairs viewable in correct order from the front and rear of the machine and are normally held in alignment by fingers 190, Figs. 3 and 6, carried by a shaft 191 and engaging the pinions 189, the fingers being urged into engagement by a spring 196 acting on an arm 195 of the shaft 191. The aligner fingers are disabled during the adjustment of the indicators by means of a cam 192, an angled flange 199 on which co-operates with a stud 194 on the arm 195. The cam is pivoted and spring-connected to a lever 193 connected to the key-coupler shaft 111 by a link 197, the arrangement allowing the flange 199 during its return movement to wipe idly past the stud 194. The Specification as open to inspection under Sect. 91 (3) (a) comprises also totalizer-engaging mechanism forming the subject-matter of Specification 371,462, and printing and voucherissuing mechanism. This subject-matter does not appear in the Specification as accepted.
Patent GB-138112-A (GB)
Title: Improvements in and relating to rotary valve internal-combustion engines
IPC: F01L7/02
Filed: 1920-01-21
Abstract: 138,112. Kloman, T. W. June 10, 1918, [Convention date]. Valves.-Inlet and exhaust are controlled by a hollow cylindrical valve B<1> or B<2> rotating at onefourth the speed of the cra.nk-shaft. Each valve has a pair of inlet ports such as C<1>, C<2>, Fig. 3, for each cylinder, the ports for the two cylinders shown being 90 degrees apart. In the position shown in Figs. 2 and 3, cylinder A' is on the suction stroke, the charge, passing from the inlet chamber c' through an inlet port C' at the right end of the valve, and through the interior of the valve to the inlet port C' which is open to the cylinder A'. Similarly, when the cylinder A<2> is on the suction stroke, the charge enters the valve through one of the ports C<1>. C<2> at the left end and passes through the interior of the valve in the opposite direction. By this method of working. the charge is supplied uniformly and the valve is kept cool. The exhaust is controlled by channels such as D<1>, D<2> in the outer surface of the valve, which place the cylinder ports in communication with an exhaust port D<9> in the valve-chamber. The valve may be formed in sections B', B<2> fixed together at B<5>, or it may consist of a single member divided by partitions.
Patent GB-703701-A (GB)
Title: Fuel supply means for a gas turbine engine
Inventor: JAGGER JAMES HARTLE
IPC: F02C9/16
Filed: 1951-01-26
Abstract: 703,701. Gas turbine plant. ARMSTRONG SIDDELEY MOTORS, Ltd. Jan. 3, 1952 [Jan. 26, 1951], No. 2015/51. Drawings to Specification. Class .110 (3). [Also in Group XXIX] The subject-matter of this Specification is comprised in Specification 703,700 but the claims differ.