baber/WOPTO huggingface dataset:
Patent GB-1379378-A (GB)
Title: Liquid ring vacuum pump units
IPC: F04C23/00
Filed: 1973-04-09
Abstract: 1379378 Liquid-ring vacuum pumps SIHI GmbH [trading as SIHI GmbH & CO KG] 9 April 1973 [8 April 1972] 17000/73 Heading F1C A vacuum pump unit comprises a liquid-ring vacuum pump, a drive motor, and a liquid circulating system including an elongated separator container and a radiator for the operating liquid of the pump, the container being arranged parallel to the pump and the motor, and the radiator being cooled by a fan driven by the motor. The unit shown comprises a base frame 1 supported on wheels 2 and carrying a two-stage liquid-ring vacuum pump 9 and its driving motor 10. The gas exhausted by the pump is delivered, together with entrained operating liquid, via a pipe 20 to an elongated separator tank 14, from which the separated gas is discharged at 21. Make-up liquid is conveyed to the tank 14 via a pipe 22, filter 23, solenoid valve 24, pipe 25 and non-return valve 26, any excess being discharged via a pipe 28. The solenoid valve 24 may be controlled by a switch sensing the level or temperature in the tank 14. Liquid is conveyed to the pump 9 via a pipe 27 branching from the pipe 25. The liquid is cooled by circulating it from the tank 14 to the pipe 25 via a pipe 29, a radiator 13 and a pipe 30, a cooling fan 12 for the radiator being driven by the motor 10. The fan 12, which also cools the pump 9 and motor 10, may be located at the other end of the unit. The tank 14 may be located laterally of the pump and motor, as shown, or above or below them.
Patent GB-550646-A (GB)
Title: Improvements in thermal insulating material made from corrugated paper
IPC: E04B1/62
Filed: 1941-06-06
Abstract: 550,646. Multiple-ply corrugated paper; heat insulation; coating webs. MUNTER'S INDUSTRI AKTIEBOLAG., and WATSON, F. June 6, 1941, No. 17069/42. Divided out of 550,561 under which a Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 9, 1941. [Classes 96 and 140] [Also in Group XII] Multiple-ply paper 11, 12 for thermal insulation as in the original Specification incorporates 35 to 60 per cent. of the asphaltic bitumen, which may comprise a mixture of asphaltic products of differing softening points, and may soften between 95‹ and 150‹C.
Patent GB-185551-A (GB)
Title: Improvements in and relating to the reception of electric signals
IPC: H04L27/14
Filed: 1921-06-22
Abstract: 185,551. Hettinger, J., and Vandervell & Co., Ltd., C. A. June 22, 1921. Multiplex signalling; heterodyne receiving systems.-In a method of simultaneous reception of several messages on continuous waves of different lengths the various waves are heterodyned to produce different audio frequencies and so influence lamps in correspondingly tuned circuits. In an example, Fig. 1, signals are received by the aerial R provided with preferably identical transformers T<1>, T<2> and produce oscillations in the differently tuned circuits I, II. The oscillations through amplifiers A<1>, A<2> and heterodyne sources H<1>, H<2> produce audiocurrents in the differently tuned circuits M<1>, M<2> and vary the illumination of lamps L', L<2> which are normally arranged to be equally illuminated. The lamps are fed from a battery in series with an inductance and variable resistance B', B<2>. In a modification, the output circuits of the amplifiers A<1>, A<2> are in series with each other and with the input of a low-frequency amplifier. The latter has an output circuit coupled with two differently tuned audio-circuits which operate as in the previous case. The lamps are arranged to make a photographic record and mav preferably be used as described in Specifications 130,368 and 186,665.
Patent GB-1082566-A (GB)
Title: Method of, and circuitry for, the measurement of intermodulation noises
Inventor: SARKANY TAMAS
IPC: H04B3/46
Filed: 1965-04-22
Abstract: 1,082,566. Measuring intermodulation noise. TAVKOZLESI KUTATO INTEZET. April 22, 1965, No.17134/65. Heading G1U. In an arrangement for measuring intermodulation noise occurring in a system to be tested, such as a microwave system designed for the transmission of multichannel telephone signals, a noise voltage having a frequency spectrum which contains substantial drops in level at a number of frequencies is applied to the input of the circuit to be tested, and the noise voltages occurring at these frequencies at the output of the system are detected and displayed simultaneously. The noise generator, Fig. 5(a), contains a thermal noise source N and high and low pass filters L, H to define the bandwidth of the noise. The noise band may be supplied to the output of the generator either directly (with the switch Sw in the position 1) or via a series of band stop filters S1-Sw which remove the noise signal at their particular tuned frequencies. The noise spectrum from the generator is passed via the system under test to the input of the noise receiver (Fig. 5(b)) where after passing an attenuator A the signals are passed via a branch network DN to the parallel receivers Rl-Rn each having a frequency corresponding to that of one of the filters S1-Sw and all having the same gain. The output voltage of each receiver is displayed on the indicators I1-In. To use the arrangement, the full frequency spectrum is first transmitted, with switch Sw in the position 1, the attenuator A is set to give high attenuation and the reading on any indicator is noted. The filters S1-Sn are then inserted into the generator circuit, and the attenuator adjusted to give the same reading on a particular instrument. The noise ratio at the frequency represented by this indicator may then be read from the attenuator scale, while the readings on the other indicators will enable the corresponding noise ratios to be determined.
Patent GB-861665-A (GB)
Title: Improvements relating to lift valves
IPC: F16K31/14
Filed: 1958-05-29
Abstract: 861,665. Valves. ATELIERS DE CONSTRUCTIONS METALLIQUES ET MECANIQUES GIOVANOLA FRERES S.A. May 29, 1958 [June 3, 1957], No. 17168/58. Class 135. A lift-valve normally opened against a loading spring 17 by fluid-pressure acting on a piston 7 connected to the lift valve member 3, and which can also be manually lifted into the open position through a valve spindle 4, is characterized in that the closing spring 17 is held between a first abutment associated with the closure member and a second abutment 16 arranged movably with respect to the valve body and the spindle 4 and manually operable means are provided for lifting the second abutment together with the valve spindle, so that the valve is readily opened manually without compression of the loading spring. As shown, the first abutment is constituted by the piston 7, to which actuating-pres. sure is admitted through a cock 9. To actuate the valve manually, cock 9 is closed to the actuating pressure and in this position vents the piston to atmosphere through a vent-hole 9a. The valve is then operated by a hand wheel 13 through a rotatable nut 12 engaging a screwed sleeve 15 connected to the second abutment. A small clearance " d " between the end of this sleeve and a cap 20 on the spindle 4 enables the spring to be slightly unloaded before the spindle is lifted.
Patent GB-515127-A (GB)
Title: Improvements in and relating to the production of artificial threads and in apparatus therefor
IPC: D01D10/04
Filed: 1938-06-09
Abstract: 515,127. Artificial silk; apparatus for treating threads with liquids. COURTAULDS, Ltd., HEGAN, H. J., GIVENS, J. H., and WEIGHAM, W. R. June 9, 1938, No. 17187. [Classes 2(ii) and 15(i)] Artificial threads produced from viscose are led from a guide situated above the coagulating bath, through a slot in the wall of a receptacle containing so much of a treatment liquid that liquid continually pours out through the slot, through the liquid in the receptacle, and then from the upper surface of the liquid to the collecting device. The receptacle is provided in one wall only with a slot for each thread which it is desired to treat therein. It may be adapted to be fitted on to a machine for the production of artificial threads in a position higher than and in close proximity to the coagulating bath and between the bath and the collecting devices and it may comprise a tank extending practically the whole length of the coagulating bath. The slots in the receptacle may be provided with U-shaped glass guides. The wall of the receptacle may be recessed or stepped so that each thread enters at right angles to the wall. As shown in Fig. 1, viscose is extruded from jet 1 in coagulating bath 2. The thread 3 passes round godet 4 and then through slot 6 in a stepped portion 7 of tank 8 containing hot water. It then passes round guide 9 and out of the tank to godet 10 and box 11. The thread may be stretched as it passes between godets 4 and 10. As shown in Fig. 2, the thread 3 leaves the godet 4 and passes through slots 6 in the walls 7 of the tiered receptacle 8. Hot water flows continuously from the top tank. A constant cascade' of water through the slots 6 is thus produced. The thread passes in a straight line from godet 4 to the top godet 10 without touching the receptacle or any guides. If desired the receptacle may be provided with a chute at each slot, shaped,and disposed so that the thread passes along the chute without contacting with it. Since the chute is always full of liquid flowing from the receptacle, the thread is totally immersed in the liquid over a greater length than would be the case without the chute. Instead of hot water, the treating liquid may be hot dilute acid or cold sulphuric acid of mercerizing strength. The collecting device may be a centrifugal box, a bobbin, or a device for cutting the thread to form staple fibre.
Patent GB-808611-A (GB)
Title: Improvements in or relating to x-ray devices for depth therapy
IPC: A61N5/01
Filed: 1957-05-30
Abstract: 808,611. X-ray apparatus. PHILIPS ELECTRICAL INDUSTRIES Ltd. May 30, 1957 [June 2, 1956], No. 17207/57. Class 98(1) In a device for radio-therapy having a source of rays directed towards a fixed point and movable over combined linear and circular paths as described in Specification 690,656, the supporting members for the radiation source and a fluorescent screen are coupled for equal and opposite movement. As shown in Fig. 1, an X-ray tube 1 is mounted by an arm 2 on a ring 4 rotatable in a base 3, the rotary movement being combined with a movement perpendicular to the ring as described in Specification 711,887. A fluorescent screen 7 is supported on ring 4 opposite the tube 1. As shown in Fig. 2, the rear end of the arm 2 is connected to the arm supporting the screen by a rope or the like 11 passing over pulleys 18, 19, 20, 21. A second rope or the like 12 is connected to screen 7, and extends through ring 4 to a pulley system connected to a spring 14, so as to keep the rope 11 taut. Screen 7 may be replaced by two screens in a single frame.
Patent GB-1186995-A (GB)
Title: Process for producing L-Glutamic Acid
IPC: C12P13/14
Filed: 1968-04-10
Abstract: 1,186,995. L-Glutamic acid by fermentation. KYOWA HAKKO KOGYO CO. Ltd. 10 April, 1968 [9 May, 1967], No. 17334/68. Heading C2C. L-Glutamic acid is produced by culturing a hydrocarbon-assimilating micro-organism capable of producing it, in an aqueous nutrient medium under aerobic conditions and utilizing a gaseous hydrocarbon as the main carbon source and in the presence of at least one additive selected from antibiotics except penicillin, surface active agents, fatty acids and fatty acid esters having 5 to 8 carbon atoms in the acid moiety and alcohols. Specified microorganisms are Brevibacterium ketoglutamicum spp. ATCC 15587 and 15588, Arthrobacter roseoparaffineus ATCC 15584, and Micrococcus paraffinolyticus ATCC 15582, and the preferred hydrocarbon is n-butane. Suitable antibiotics are keflin, ceporan, bacitracin, novobiocin, kanamycin, streptomycin, cycloserine and spiromycin, and surface active agents are preferably cationic or non-ionic agents, including the sodium salts of high molecular weight alkyl sulphates or sulphonates, polyoxyethylene glycol derivatives, fatty acids and sucrose fatty acid esters. The additive may be present initially or is added (all at once or intermittently) during cultivation, the concentration being preferably from 5-50,000 γ/ml.
Patent GB-273501-A (GB)
Title: An improved bracket attachment for ladders, steps and trestles
IPC: E06C7/16
Filed: 1926-07-14
Abstract: 273,501. Barr, A. July 14, 1926. Ladders; scaffolding.-A ladder-bracket of the type formed of a framework with pivoted platform and stay members has a member on the stays adapted to engage the frame and be locked therein. The member on the stays 10 comprises a cranked bar 11 with rectangular-section end portions 12 adapted to engage slots 13 in the frame members and be looked therein by rotation of the bar. The outer end of the bracket is provided with a hauling pulley 15. The bracket may be attached to a roof ladder b, Fig. 6, for supporting an upright ladder f, or planks may be placed on the brackets carried by separate ladders erected in an inclined position against a wall.
Patent GB-315857-A (GB)
Title: Improvements in and relating to methods of direction determination, particularly for aeroplane traffic
IPC: G01S1/02
Filed: 1929-06-08
Abstract: 315,857. Lorenz Akt.-Ges., C. July 21, 1928, [Convention date]. Directive signalling ; controlling aircraft.-In a method of direction determination, particularly for aircraft, a plurality of ground transmitters B, F, H, E, L, M distributed over the traffic area, Fig. 1, work on the same wave length, their radiated high-frequency oscillations are distinguished by different station signals, and receiving- arrangements, Fig. 2, are provided on the aeroplane to indicate the direction of one of the transmitters. The carrier wave radiated by each of the transmitters is modulated by a characteristic sound-frequency, for example as indicated in Fig. 1. Two directional aerials and one non- directional aerial, as described in Specification 315,830, a.ct on the input of a receiver E, the output of which includes filter circuits S for the different modulating frequencies to which an indicating- instrument J is selectively connected. The high-frequency energy radiated is periodically varied to suit near and distant aircraft, and the receiver is periodically switched on and off by a clock in accordance with the distance of the aircraft.
Patent GB-1391193-A (GB)
Title: Tree-felling tool and vehicle
IPC: A01G23/08
Filed: 1972-04-17
Abstract: 1391193 Tree felling O & K ORENSTEIN & KOPPEL AG 17 April 1972 [17 April 1971 4 June 1971] 17723/72 Heading A1E A tree felling tool is mounted at the end of a hydraulic arm of an articulated vehicle; a prop 20 hydraulically operated from the vehicle exerts pressure on the tree and stretches its fibres so that they can be more easily cut by a hydraulically operated horizontal cutter blade on the felling tool, and so that the tree falls in a predetermined direction. The inclination of the cutter assembly may be adjusted using a threaded spindle 28. A transversely extending stop guides the alignment of felling tool and tree. After being felled the tree may be secured to the prop 20 by chain 34 and may be dragged by the vehicle with the prop 20 raised. Alternatively by lowering the prop 20 the tree may be gripped between a jaw mounted on the prop 20 and a lower jaw mounted on top of the cutter assembly.
Patent GB-954903-A (GB)
Title: Improvements in or relating to internal combustion engines
Inventor: LAZORK JAN STEFAN
IPC: F01L1/26
Filed: 1959-05-25
Abstract: 954,903. Charging I.C. engines. ENGLISH ELECTRIC CO. Ltd. May 25, 1960 [May 25, 1959], No. 17724/59. Heading F1B. In an I.C. engine wherein scavenging air is introduced into one end of the engine cylinder with a rotational component of velocity, the scavenging air is hindered from flowing through the exhaust ports 24, Fig. 1 by means 8, forming a diaphragm placed adjacent the periphery and the burnt gases are moved centrally through the cylinder towards the exhaust ports. Inclined and tangential scavenging air ports 2 cause the air to enclose the burnt gases in zone 17 which is displaced outwardly through the centre of the ring of plates 8, Fig. 3. Valves 3 are fixed rotationally e.g. by Keys or by the cylinder wall and opened by movement of ring plate 13. In a modification, the outer parts 19, Fig. 5 of two-part valves 3 are rotated by an internally-toothed wheel 36 meshing with spring plate 35 and the plates 8 have radially-directed slots. In a further embodiment, the burnt gases pass centrally through an annular diaphragm mounted resiliently on the piston head and then outwardly through ports uncovered by the piston at B.D.C., the scavenging air entering through valve-controlled cylinder head ports. Figure 7. Scavenging air is admitted through non-return valves 4 and ports 2 to displace the burnt gases through a liquid-cooled diaphragm 51 integral with thepi ston 20. The spray from fuel injector 38 substantially avoids the diaphragm 51 during its upward travel. In another embodiment opposed pistons are arranged in a single cylinder so that an integral projection on one piston enters an annular diaphragm integral with the other piston. Figure 13. Scavenging air is admitted from two rows of ports 2, 21, the lower row 21 having a larger inclination so that the air jets emerging therefrom prevent the main mass of scavenging air from flowing out with the exhaust gases and in a modification the two rows of scavenging ports are arranged at opposite ends of the cylinder of an opposed piston engine.
Patent GB-149129-A (GB)
Title: Improvements in or relating to folding cylinders used in rotary printing machines, and in the mechanism for actuating the pin holders carried thereon
IPC: B65H45/16
Filed: 1919-07-15
Abstract: 149,129. Mills, T. J., and Morris, E. T. July 15, 1919. Folding paper.-The folding cylinder of a rotary printing-machine is provided with a longitudinal recess in which are mounted a rod and cranks for actuating the impaling-pin holders, and the cylinder is strengthened by a longitudinal rib. The folding-cylinder 1, Fig. 2, strengthened by ribs 2 extending from the gutter bar 3 to a central tube 4, has trough-shaped recesses 5 in which are mounted rods 6 carrying cranks 9 and 11, Fig. 3, for actuating the pin-holders 7. The crank 9 is fixed to the rod 6 by a screw 10, and the crank 11 is detachably secured by a screw 12. A crankpin 8 is fixed to the crank 11 and slidable in the crank 10, or vice versa. The pin-holder 7 may be removed by slackening the screw 12 and sliding the crank 11 along the rod 6.
Patent GB-1294444-A (GB)
Title: Metering apparatus
Inventor: LAWS PETER
IPC: G01F11/18
Filed: 1969-04-08
Abstract: 1294444 Mixing in proportions P LAWS 8 May 1970 [8 April 1969] 17767[69 Heading B1C [Also in Division B8] Apparatus for introducing a mixture of a particulate liquid or gaseous material and a fluid, e.g. a solvent into a pipeline 24 comprises a metering device, for the material, having a rod 1 reciprocable by means of a spring 9 or other biassing means and the fluid supplied via pipe 14 to chamber 8. The rod includes a metering chamber 3 which alternately communicates with an inlet 4 and an outlet 5. With the chamber 3 in its discharge position the pipe 14 is open to atmosphere via valve 13. Simultaneously fluid is supplied via pipes 27, 15 and the valve 13 to a chamber 10 where the fluid and discharged material are mixed. The mixture then passes via pipe 12 into tank 11, which is in constant communication with the pipe line via a needle valve 25. The mixture is induced into the pipeline by a venturi device 24. The level in the tank 11 upon rising causes a float 19 to engage a stop 20 on rod 21 to effect, through the rod 21 and lever 18, rotation of valve member 16 to a position in which the fluid supply pipe 27 communicates with the chamber 8. The rod 1 is then moved against bias of spring 9. Fall in the level in tank 11 will cause the float to engage a further, lower stop 20, and thus return the valve member to the position illustrated. The stops 20 are adjustable with respect to the rod 21. When liquid material is supplied from hopper 6 the rod 1 is provided with appropriate seals. For introducing a gaseous material the outlet 5 is connected directly to the chamber 10. A single valve 13 may control a plurality of metering devices. As illustrated a piston 7 is connected to the rod 1, but in an alternative embodiment the piston includes a piston rod which engages with one end of the rod 1. In a further embodiment (Fig. 3, not shown) the valve (28) is such that during discharge from the measuring chamber (3) solvent supplied under pressure is directed to both the piston and mixing chambers (8 and 10) and the force of the spring (9) biassing the piston 7 and rod is greater than the force of solvent acting, at that time, on the piston (7) and that when the level in the tank has reached a predetermined upper level the solvent is directed solely to the piston chamber (8) so as to move the piston and rod (1) against bias of the spring (9). The mixture in the tank may alternatively be pumped into the pipeline 24 at a desired rate, and the valve element 16 may be actuated by a solenoid controlled by level electrodes within the tank. An agitator 22 may be provided.
Patent GB-548012-A (GB)
Title: Improvements in metal cutting machine tools such as boring and drilling machines
IPC: B23B39/20
Filed: 1940-12-18
Abstract: 548,012. Lathes. DORIN, A. Dec. 18, 1940, 'No. 17827. Divided out of 17828/40. [Class 83 (iii)] Vertical turret lathes such as those for boring have the work mounted in inverted chucks rotating about a vertical axis whilst the tools are mounted radially upon a turret rotatable about a horizontal axis and fed vertically. A number of tools simultaneously perform the same operation upon a like number of work pieces. Spindles 13 driven by a motor 25 present work to pairs of tools 7 carried by the faces of a turret 5 slidable on guides 2 under the control of a screw 3 or of a hydraulic cylinder. Dogs 10 on the turret slide control a clutch for stopping the spindle drive which may be linked to the stop mechanism for the slide. Work may be placed on pegs mounted on one face of the turret for insertion thereby into the chucks.
Patent GB-164369-A (GB)
Title: An improved armoured pneumatic tyre for use in connection with motor cars, motor cycles and similar vehicles
IPC: B60C9/16
Filed: 1919-07-16
Abstract: 164,369. Butazzi, J., and Butazzi, C. July 16, 1919. Jackets and covers. -A tyre is formed of canvas A or similar material glued together, a coating B of rubber and a farther laver consisting of two canvas strips C, D. Between the two o layers is secured a metallic net-work or armour, the spaces between the net-work and the layers being filled with rubber solution. An outer cover G of canvas with a rubber tread is applied which may be strengthened by a covering of leather &c. Before vulcanizing, the layers are riveted together.