baber/WOPTO huggingface dataset:
Patent GB-1285187-A (GB)
Title: Improvements in or relating to windows for transmitting microwave energy
Inventor: PERRING DUDLEY
IPC: H01J23/36
Filed: 1968-11-06
Abstract: 1285187 Waveguide seals; discharge tubes EMI Ltd 5 Nov 1969 [6 Nov 1968] 52694/68 Headings H1D and HlW A plane di-electric plate window 3 arranged in an intermediate section of waveguide 2 between two waveguides 4 and 5 of different electrical dimensions from the intermediate guide, such that a standing wave is set up in the latter, has a thickness substantially less than a half wavelength in the window material of the transmitted microwave energy, and is so positioned that one of its surfaces is in a region where the amplitude of the standing wave is substantially less than the value at the mid-point along the intermediate waveguide. In general e.g. if the window is arranged in the output waveguide of a klystron or travelling-wave tube-the standing wave amplitude will be asymmetrical and have a minimum displaced from the mid-point, as shown in Fig. 2. By arranging the window to have that surface which faces the evacuated waveguide located at the position of minimum standing wave amplitude, the multipactor effect may be minimized, while if the other surface is arranged at the minimum, dielectric breakdown at the window is minimized; otherwise, the windows may be arranged at an intermediate position as a compromise between the attainment of the above advantages and the associated reduction of bandwidth, the bandwidth being a maximum when the window is positioned at the mid-point of the intermediate guide. In the arrangement shown, guides 4 and 5 are rectangular, and guide 2 is circular. Numerical data are given.
Patent GB-1551019-A (GB)
Title: Method for the production of heat from waste
IPC: C02F11/13
Filed: 1975-12-24
Abstract: A method for the production of heat comprises composting solid organic waste, preferably  in admixture with sewage sludge, and burning the composted waste, for example in a kiln for calcining an inorganic calcinable material. The composted waste preferably has a water content of less than 20% by weight, more preferably from 10 to 20% by weight. The organic waste, is composted in a rotating drum, for an average residence time of from 12 to 48 hours. The invention also provides a method for producing a fuel by composting a solid organic waste as described above and the fuel produced thereby. The composting is suitably carried out in a rotating drum having festoon chains arranged therein to serve as mixing lifters or flights.
Patent GB-1133583-A (GB)
Title: Blowing agent compositions
IPC: C08J9/10
Filed: 1965-12-14
Abstract: 1,133,583. Blowing agent compositions. NATIONAL POLYCHEMICALS Inc. 14 Dec., 1965 [31 Dec., 1964], No. 52982/65. Headings C3C, C3P and C3R. A blowing agent composition comprises azodicarbonamide, a polyvalent heavy metal salt of Group II or Group IV of the Periodic Table which lowers the decomposition temperature of azodicarbonamide, an alkali metal salt, and a bicarbonate having a primary decomposition temperature of from 130‹ to 170‹ C. The weight ratio of azodicarbonamide to heavy metal compound to alkali metal compound is preferably about 6:2:1. Suitable heavy metal compounds are zinc oxide, zinc 2-ethyl-hexoate or cadmium or lead salts, and exemplified alkali metal compounds are potassium oleate and sodium stearate. The blowing agent may be formed into a paste with a plasticizer, e.g. dioctyl phthalate, or may be used in the dry state finely divided. The sodium bicarbonate and azodicarbonamide preferably have particle sizes in the ranges 10 to 30 microns and 0À1 to 5 microns respectively, and the bicarbonate may be used in amounts of 1 to 40% by weight of the azodicarbonamide. Exemplified polymers which are expanded using the blowing agent are polyvinylchloride, polyacrylonitrile and synthetic rubbers formed from butadiene and acrylonitrile, and phenolformaldehyde and ureaformaldehyde resins may be expanded using the blowing agent together with an acid hardener.
Patent GB-1396515-A (GB)
Title: Refuse compactors
IPC: B30B1/10
Filed: 1972-05-26
Abstract: 1396515 Refuse compactors J W MOON 26 May 1972 [1 June 1971] 53057/74 Divided out of 1396514 Heading B8C The description is identical with that described in the parent Specification 1,396,514, but the claims are concerned with a refuse compactor 20 comprising a refuse receptacle 200, a compacting mechanism having an extendable mechanical linkage 82-90, and a presser platen 106 movable between an extended position within said receptacle for compacting refuse therein and a retracted position disposed clear of said receptacle, a motor 78 and drive means 138 operably interconnecting the motor and the linkage, an energizing circuit, Fig. 6, connected to the motor and adapted to be connected across a source of energizing current and including reversing means for causing the motor 78 and drive means 138 to reversibly move the platen towards its retracted position, and sensing means responsive to resistance forces exerted on the motor by refuse through the drive means, linkage, and platen, during movement of the platen from the retracted position towards its extended position exceeding a predetermined value to condition the reversing means for reverse application of force via said drive means to move the platen towards its retracted position.
Patent GB-1111775-A (GB)
Title: Improvements in or relating to apparatus for remote reading of roller or dial counters
IPC: H01H36/00
Filed: 1966-11-28
Abstract: 1,111,775. Counters. N. P. HOYER. 28 Nov., 1966 [29 Nov., 1965], No. 53072/66. Heading G4D. Each wheel 1a of a counter carries a permanent magnet 5 which closes the adjacent one of a set of contacts 7 on a stator 6 corresponding to the several digital positions of the wheel. The counter is suitable for indicating liquid level in ships carrying inflammable cargoes, the contacts then being of sealed magnetic reed type, and a reading being provided on a remote panel.
Patent GB-1531980-A (GB)
Title: Triazolylbenzophenone derivatives and preparation thereof
IPC: A61P25/20
Filed: 1975-12-30
Abstract: The compounds of the formula Ia in which the substituents have the meaning stated in Claim 1 are obtained by hydrazinolysis of phthalyl derivatives of the formula IV. The resulting products can be used as anxiolytics, sedatives, hypnotics, spasmolytics, muscle relaxants, antidepressants and can furthermore be employed as starting materials for the preparation of pharmacologically active compounds. <IMAGE>
Patent GB-1142346-A (GB)
Title: Improvements in hatch covers
Inventor: JONASSON BO
IPC: B63B19/26
Filed: 1966-11-29
Abstract: 1,142,346. Hatch covers. VON TELL TRADING CO. A.B. 29 Nov., 1966, No. 53286/66. Heading B7S. A hatch cover comprises two parts 1, 2, the cover part 1 comprising two cover sections 3, 4 hinged at 7 so that the two cover sections fold with their under sides turned towards each other, there being in the transverse joint 13 between the cover parts 1 and 2 a seal formed by sealing strip 16 in groove 15 against which is pressed bulge 17 on sealing flange 18, the hinge 7 between the cover sections at closed cover being situated below an imaginary line 31 which connects hinge shaft 9 on the hatch covering and the point where roller 25 rests on the hatch coaming when cover part 1 is in closed position. Cover section 4 is provided with a lifting means in the form of a sword-shaped plate 30 having an inclined plane 29 which co-operates with roller 28 so as to lift the sealing strip 16 out of engagement with the sealing flange 18.
Patent GB-1271339-A (GB)
Title: Drill bit apparatus for underground formations
IPC: E21B10/66
Filed: 1970-11-10
Abstract: 1,271,339. Boring earth &c. CHRISTENSEN DIAMOND PRODUCTS CO. 10 Nov., 1970 [19 Jan., 1970], No. 53416/70. Heading E1F. A drill comprises cutters 32, 33 which are lowered through a drill string to be expanded into engagement with a drive section 14 for drilling. An assembly comprising a latch 79, a swivel 22 supported by the latch, a core tube 19 hanging from the swivel, a cutter carrier 18 supported by fingers 26 from the core tube, cutters 32 hanging from the carrier, and cutters 33 hanging from the cutters 32 is supported by an overshoot 89 and lowered down through the string to the section, a shoulder 16 in the section being engaged by hooks 49 on the cutters 33 to align the assembly with the section. After the hooks engage the shoulder, the cutters 32 expand the cutters 33 and both sets of cutters are expanded by the core tube into the drilling position shown in Fig. 2a in which threads 15 on the section are engaged by companion threads on the cutters. The assembly is held in the drilling position by blades 82 of the latch engaging in groove 84 in the string. The assembly may be removed by pulling on the overshoot. A ring 29 is not fitted if the core barrel only is to be removed. In a bit cutting a full cross-sectional area, the  carrier is solid with the barrel and has a lower  face carrying cutting elements.
Patent GB-1333093-A (GB)
Title: Blank cutting apparatus
IPC: B26F1/38
Filed: 1970-11-13
Abstract: 1333093 Cutting-out apparatus ST REGIS PAPER CO 13 Nov 1970 [22 Jan 1970] 54207/70 Heading B4B An apparatus for cutting a blank 38, e.g. for an envelope from a moving web 68 of sheet material comprises a rotatably mounted knife roll 30 carrying a raised knife blade 36, for co-operation with an anvil bar 41 having a wear strip 51 which is formed with a concave surface for co-operation with the knife 36 and tilted with respect to the longitudinal axis of the bar so as to permit cutting of the web by point-to-point contact and shearing motion of the rotatable knife blade against the moving web of sheet material passing between the roll and the anvil bar. The knife roll 30 is rotatably mounted in side supports 26, Fig, 2, which also mounts the anvil bar 41 via a support 40. The wear strip may be made from tungsten carbide. The web 68 is fed between the knife blade and anvil bar by feed rolls 12, Fig. 1, the blank being retained on the knife roll 30 by suction via holes 72 until the blank reaches a transfer roll 55 at a region 76. At this region the suction is released so that the blank moves round with the roll until it is picked up by a finger roll 58 and then transferred on to conveyer belts 60. The waste web material 82 continues around the knife roll until it reaches the nip between the knife roll and a waste roll 62, the waste then being held on the waste roll by suction until it is taken away via a suction shoot. In a modification, Fig. 7 (not shown), the web is fed past the cutting station by feed rolls (100), (116) each engaging with a common feed roll (102); the rolls (100, 116) are mounted eccentrically so that they can be adjusted by means of piston- and-cylinder devices (122) in order to vary the rate of feeding and tension of the web.
Patent GB-1291935-A (GB)
Title: Testing pipes for flaws and/or eccentricity and/or wall thickness
Inventor: FORSTER F M O
IPC: G01B7/312
Filed: 1970-11-13
Abstract: 1291935 Eddy current testing of pipes F FÍRSTER 13 Nov 1970 [15 Nov 1969] 54236/70 Heading G1N Pipes are tested for flaws, eccentricity and/or wall thickness using an A. C. energizing coil and a pick-up coil, the coils being arranged one inside and the other outside the pipe, the axis of the energizing coil being coaxial with the pipe to produce flux penetrating the whole periphery of the pipe, the pipe being scanned by relative axial and rotational movement of the pipe and pick-up coil. The test heads may be spring biased to contact the pipe wall. For flaw testing, the frequency of the A. C. and the reference phase of a phase detector in the pick-up circuit are chosen according to a theory explained with reference to Figs. 1-3 (not shown) taking into account the pipe wall thickness, the distance between the coils and the conductivity of the pipe material so that the detected signals are insensitive to variations in conductivity and wall thickness. In Fig. 4, two primary windings 52, 53 inside the pipe are connected in opposition to produce a radially directed field through the pipe wall. A motor driven secondary coil 54 with axis normal to the pipe wall scans the pipe circumferentially where the flux field emerges substantially perpendicularly, the secondary voltage being indicative of pipe wall thickness. Eccentricity can be measured using two secondary coils Fig. 5 (not shown) one comprising two identical windings (45, 46) wound in bifilar fashion and the other comprising a single winding (40) diametrically opposite, windings (40, 45) being connected in opposition and windings (40, 46) being connected in series aiding. The eccentricity is evaluated by dividing the voltage from windings (40, 45) by twice the voltage from windings (40, 46) (theory given). Flaws may be detected using a secondary coil having its axis perpendicular to the flux field. There may be two pairs of differentially connected secondary coils Fig. 7, (not shown), one pair for transversely directed flaws and the other pair for longitudinally directed flaws. Alternatively Figs.8, 9, 10, (not shown) a single primary coil (71) produces an axially directed field, the secondary windings being single or differential as described above. If the pipe is ferromagnetic, a D.C. ferromagneticcored electromagnet 91, 92, Fig. 11, is used to saturate the pipe wall. Hard metal distance pieces 98 or rollers prevent sticking.
Patent GB-1455520-A (GB)
Title: Photocontrol system for electric lamps
IPC: H05B37/02
Filed: 1974-12-16
Abstract: 1455520 A timed control of electric circuits ELECTROTEC DE OCCIDENTE SA 16 Dec 1974 [14 Dec 1973] 54315/74 Heading G3T [Also in Division H2]  Electric lamps are switched on by a photo-cell responsive to ambient light intensity and off by an electronic timer which is reset when the lamps are turned on and arranged to turn off some or all the lamps after a pre-set time elapses. The switching may be carried out by an electromagnetic relay, Fig. 3 (not shown), a bi-metallic heat responsive switch Fig. 4 (not shown) or a solid state switching device. In the lamp control system, shown in Fig. 5, a triac 45 is used to control lamps 32 and a photocell 29 senses ambient light to keep transistor 43 non-conducting during daylight hours. When darkness falls the resistance of photo-cell 29 increases causing transistor 43 to conduct and fire triac 45 to switch the lamps on. After a predetermined time thyristor 31 is fixed by an output pulse from the timing circuit to cause transistor 43 to become non- conducting and switch off triac 45 and lamps 32. Thyristor 31 remains conducting until the photo-cell resistance reduces (in daylight) and switches thyristor 31 off. The timing circuit shown in Fig. 2 is supplied with A.C. at terminals 4, 5 when the switch (triac) operates to switch on the lamps which resets the counters 8, 9 and starts the timer module 20 oscillating. The pulses from the timer module are counted by counter chain 8, 9 until at the end of the predetermined time a pulse on line 6 switches on the thyristor 31. Thermistors may be provided in the RC circuit of the timer module in place of resistors 22, 23 to provide a reduction in the predetermined time during the summer months and a lengthening in winter.
Patent GB-1412115-A (GB)
Title: Method of and apparatus for wet spraying of concrete
IPC: E04G21/02
Filed: 1972-11-24
Abstract: 1412115 Mixing apparatus J BERNOLD 24 Nov 1972 [22 Dec 1971] 54347/72 Heading B1C [Also in Division El] Concrete is forced from a mixing container 1 by compressed air through an outlet pipe 5, 12, and two, three or four further streams of air are introduced into the pipe 5 through circumferentially spaced pipes 7, in order to improve the flow of concrete, the pipe 5, 12, being connected at 13 to a further pipe (not shown) from which the concrete is sprayed. The pipes 7 are radially directed and are connected by a ring pipe 8 to a connector 9 for a compressed air supply. The outlet pipe comprises a cylindrical portion 5 inserted into an outlet nozzle 2 of the mixer 1 and secured by a bayonet joint between flanges 3, 6, and a tapering portion 12, the pipes 7 feeding into the cylindrical portion 5.
Patent GB-1489910-A (GB)
Title: Data recorder
IPC: G11B27/13
Filed: 1974-12-18
Abstract: 1489910 Recording system TSURUMI-SEIKI CO Ltd 18 Dec 1974 [22 Dec 1973] 54573/74 Heading G5R In a data recorder in which the data is initially fed to a temporary storage system, the relative speed of a transducer and recording medium is controlled in accordance with the amount of data stored and the data is read out of the store and recorded at a rate which is a function of said relative speed. Data is read into buffer register 5 by clock pulses which are also applied to the up input of counter 7. The count is applied via D/A converter 8 and amplifier 9 to control the speed of motor 1 which drives tape capstan 3 via reduction gear 2. Pulses are produced in encoder 10 at a rate which is a function of capstan speed and these are used to read the data from the register to the record head 6 and are also applied to the down input of the counter.
Patent GB-1260765-A (GB)
Title: Hydraulic pressure wave generating apparatus
IPC: F15B21/12
Filed: 1969-11-11
Abstract: 1,260,765. Hydraulic pressure wave generating apparatus. Momentum pumping apparatus. BAKER OIL TOOLS Inc. Nov.11, 1969 [March 26, 1969], No.55059/69. Headings F1P and F1R. Apparatus for intermittently and suddenly arresting a moving liquid to create pressure waves capable of doing useful work e.g., pumping well-liquid or further pressurizing a liquid comprises two shock tubes 21, 22 Fig. 1 connected at their upper open ends to a reservoir 24 and having at their lower open ends ports 27, 28 controlled by a shuttle valve 29 and through which ports liquid from a power supply line 25, 26 is passed whereby when valve 29 closes ports 27, 28 alternately a negative pressure developes in shock tubes 21, 22 which results in alternate opening of further shuttle valves 17, 18 to admit well-liquid through inlet ports 15, 16 at the lower ends of tubes 21, 22. Each valve 17, 18 remains open until the negative pressure wave returns thereto at which time pressure in tubes 21, 22 equals the external pressure and valve 29 reopens and then recloses to initiate a further cycle. The second shock tube 22 and port 16 and valve 18 enables well-liquid to be pumped whilst the first shock tube is inactive. Power liquid for tube 25, 26 is provided by a well head pump 12. In a modification and for the production of a positive pressure in shock tubes 21a, 22a Fig.10 the closing of end port 60 by a valve 65 results in opening of a valve 17a and discharge of pressurized liquid through a port 15a into a line 63 during which time liquid flows from tube 22a through an open valve 66 connected to 65 by a rod 68 and through port 60 into a low-pressure exhaust line 61.
Patent GB-1158038-A (GB)
Title: Device for the Stacking and Packing of Rod-Shaped Workpieces
IPC: B65B19/34
Filed: 1967-12-06
Abstract: 1,158,038. Endless conveyers; packaging machines. GEBR. BOHLER & CO. A.G. 6 Dec., 1967 [7 Dec., 1966], No. 55551/67. Headings B8A and B8C. Welding electrodes 2 on an endless conveyer belt 3 are discharged into a guide channel 10 to fall under gravity past a counting device 11 and are deflected by a flap 13 into a bin 12a. After the passage of a predetermined number of electrodes the flap 13 is moved so that those electrodes following are deflected into a second bin 12b and the bin 12a is pivoted about an axis 15a to discharge its contents into a compartment 17a on an endless chain conveyer 16. The conveyer 16 is intermittently driven to present an empty compartment below the appropriate bin and, as a result of the spacing of the bins and the compartments, the successive movements of the said conveyer are of unequal length, the ratio being 1 : 3. The cycle time is however constant. The electrodes are arranged in the compartments with one end projecting to receive a package 19, into which they are discharged by rams 18 extending into said compartments. The rams operate in pairs and are preferably actuated during the longest dwell of the conveyer 16.
Patent GB-1215924-A (GB)
Title: Process for pre-hardening manganese steel
Inventor: BEST NOMAN
IPC: C22C38/04
Filed: 1966-12-12
Abstract: 1,215,924. Heat-treating manganese steel. HADFIELDS Ltd. Dec. 12, 1967 [Dec.12, 1966], No.55628/66. Heading C7A. Austenitic manganese steels containing at least 9% of manganese, with possibly up to 0À045% of nitrogen, and up to 1% each of chromium, nickel, vanadium, tungsten or molybdenum, is heated in the range 450‹ to 575‹C. to precipitate carbide and pearlite, and is then heated in the range 700‹ to 850‹C. to redissolve the ferritic constituent of the pearlite and to at least partially spheroidize the carbides. The steel may be initially austenitized, e.g. at 950‹ to 1100‹C. followed by quenching in water. The process is particularly applicable to steels containing: - carbon 0À8 - 1À4% silicon 0À1 - 1% manganese 9 - 14% iron and impurities balance
Patent GB-1144508-A (GB)
Title: An improved raschel warp loom
Inventor: SALWAY KEITH
IPC: D04B27/24
Filed: 1966-12-14
Abstract: 1,144,508. Knitting machines. CLUTSOM & KEMP Ltd. 5 Dec., 1967 [14 Dec., 1966], No. 55954/66. Heading D1C. The needle bar 15 of a raschel machine is connected to an eccentric 20 which imparts a compound transverse movement to the needles causing their hooks to follow an elliptical path. The yarn guides 10 are confined in their movement to a shogging motion longitudinally of the line of needles and are actuated by a cam RC1 engaging a follower R1 on the end of a rod 12 connected to the upper end of the guide bar 7. Consequently the guide bars -are shogged to effect the overlap or underlap movements of the guide and their yarns and the compound movement of the needles causes them to move across the path of the yarns to effect what is normally the lapping movement and to knit.
Patent GB-1485767-A (GB)
Title: Pump dispenser
IPC: F04B13/00
Filed: 1973-12-06
Abstract: 1485767 Reciprocating pumps UNILEVER Ltd 2 Dec 1974 [6 Dec 1973] 56536/73 Heading F1A A finger actuated pump for mounting on a container of liquid or gel comprises a piston 14 moved on its suction stroke by a spring 18 to draw liquid from the container into cylinder 15 via check-valve 22, and moved on its discharge stroke by finger pressure to pressurize the liquid in cylinder 15 and transfer it into a discharge chamber 24, 25 via passages 23, the pressure energy being stored by a spring-loaded annular piston 26 until piston 14 has moved down sufficiently for piston port 17 to register with cylinder ports 28 whereupon the contents of chamber 25 are discharged by piston 26 via stem 16 of piston 14 and an actuator button, e.g. as a spray. The cross-sectional area of piston 26 is preferably between two and twenty five times that of piston 14 to provide a suitable discharge pressure.
Patent GB-1492537-A (GB)
Title: Process for the manufacture of polypropylene fibres
IPC: D01D5/42
Filed: 1973-12-06
Abstract: 1492537 Blended polypropylene fibres SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 4 Dec 1974 [6 Dec 1973] 56578/73 Heading B5B Synthetic fibres are made by fibrillating a film composed of a blend containing 80-99À5% by wt. of polypropylene and 0À5-20% by wt. of a styrene-butadiene block copolymer. The film is stretched but not longitudinally grooved before fibrillation. The preferred fibrillation method is by passing the film under tension over a rotating cylinder provided with pins on its curved surface.
Patent GB-566283-A (GB)
Abstract: 566,283. Magneto-electric machines. BRITISH THOMSON-HOUSTON CO., Ltd., GOUGH, W. E., POLLARD, J. H., COULING, S. A., and COLLINGHAM, R. H. Jan. 9, 1942, No. 381. Addition to 545,540. Drawings to Specification. [Class 35] To enable magnetos to work satisfactorily at high altitudes, the air in the interior of the magneto is maintained at substantially atmospheric pressure by a gear-type pump which draws in filtered air from outside and compresses it. One of the gear-wheels is mounted on the magneto shaft and the other on a stub staft secured to the casing of .the machine.