baber/WOPTO huggingface dataset:
Patent GB-302166-A (GB)
Title: Improvements in and relating to centrifugal extractors
IPC: B04B11/02
Filed: 1928-12-10
Abstract: 302,166. British Thomson-Houston Co., Ltd., (Assignees of Kelsey, C. A.). Dec. 10, 1927, [Convention date]. Strainer separators.-A feeding element for a centrifugal extractor having a perforated drum is so arranged that its support can be operated to move the element forwards and backwards axially in the drum, the element being moved away from the wall during movement of the supporting means in one direction. The perforated drum 10<a> is reinforced by bands 10<b> and is mounted on a base 10<c>, 10<d> being left for the discharge of solids. The base 10<c> is secured to the spindle 13 driven by the motor 11, and the drum 10<a> contains another drum 20 carrying a number of pivots 19<a> which support the arcuate feeding members 19. The drum 20 is rotated with the drum 10<a> by the motor 11, and is caused to reciprocate within the drum 10<a> by the worm and link gearing 24, 21. During the downward movement the feeding members 19 move outwards under centrifugal action until they engage the stops 20a and form complete rings which move the deposited solids downwards towards the outlets, while during the upward movement the members move inwards to the position shown in dotted lines in Fig. 3, and so do not interfere with the material previously moved from the drum wall. The mixture is supplied from the pipe 18 to the upper compartment of the drum 20, from which it passes by the outlets 20f to the space between the two uppermost rings of feeding elements. The liquid passes through the drum wall into the chamber 14 and the annular gutter 15, from which it is withdrawn through the pipe 16 while the solids are fed forward to the outlets 10<d> and the hopper 17. Specification 10221/08 is referred to.
Patent GB-1363451-A (GB)
Title: System for dispersing energy in a radiotelegraphic communication  channel
IPC: H04B1/707
Filed: 1971-08-03
Abstract: 1363451 Telegraphy KOKUSAI DENSHIN DENWA KK 3 Aug 1971 [3 Aug 1970] 36498/71 Heading H4P To reduce peaks in the power spectrum of a digital phase or frequency modulated radio carrier wave, the modulating digital signal is combined with a digital noise signal prior to modulation. An analogue signal is converted in a coder 1, driven by clock source 5, to a digital signal V 1  which is combined in a combiner 2 with a digital noise signal V 2  from generator 3. The resulting signal phase, or frequency, modulates a radio carrier (4). The combiner may be an exclusive OR or NOR circuit. In a receiver the demodulated signal is combined with a locally generated digital noise signal in a similar combining circuit to extract the original digital signal. The arrangement may be used in a radio telegraphic communication channel and a station identification signal UV may be added to each frame.
Patent GB-841912-A (GB)
Title: Method and machine for severing predetermined lengths from band material
IPC: A24C5/47
Filed: 1957-11-22
Abstract: 841,912. Cigarette - making machines. AMERICAN MACHINE & FOUNDRY CO. Nov. 22, 1957 [Dec. 4, 1956], No. 36502/57. Class 130. [Also in Group XVI] To prevent tension breakage of a cork or paper band TM as sections T thereof for use in uniting cigarettes and filter mouthpieces are cut by a rotary knife or knives 32 coacting with metal inserts of a suction drum 24 whose surface moves at more than the speed at which the band TM is fed by rollers 16, 18, the band passes over a roller 22 eccentrically mounted on a shaft 48 and belt or chain driven from the knife shaft so as to tend to provide slack in the band at the time of cutting. The band is glued from a reservoir 26 via rollers 28, 20, a scraper 30 being provided. Modifications. The roller 22 may be on an arm, oscillated by a crank and connecting rod from the knife shaft or by a cam, acting positively on the arm or against which the arm is spring loaded. Specification 833,998 is referred to.
Patent GB-831839-A (GB)
Title: Improvements in or relating to electrical integrators
Inventor: DOS HELMUTH
IPC: G01R29/00
Filed: 1957-11-22
Abstract: 831,839. Control of two D.C. motors. SIEMENS & HALSKE A.G. Nov. 22, 1957, No. 36504/57. Class 38 (3). [Also in Group XXXVI] An integrating device comprises two meter motors connected in opposition through a differential to an indicator moving over a time scale the indicator being moved at a speed corresponding to the difference between the speeds of the two motors, the supply currents to the motors being varied in proportion to the value of the quantity to be integrated and braking means for the motors being fed by the sum of the supply currents to both motors, the indicator then giving the required integral. In the embodiment of Fig. 1, meter motors Z 1 , Z 2  have field coils F 1 , F 2  and their feed currents i 1 , i 2  are derived from voltage divider G energized by a feed current over a sliding contact positionally corresponding to the quantity to be integrated; N being the shaft of the differential D connected to the indicator (not shown) and B 1 , B 2 , the motor braking magnets both fed by i 1  + i 2 . It is proved that zαn 1  - n 2  (where n 1 , n 2  are the motor speeds), so that the indicator displacement represents the required integral. In the embodiment of Fig. 2, voltages are used, g 2 , g 3 , g 4  being fixedtransformer secondary windings of one or more transformers G fed by a common A.C. source, g 1  being a further transformer secondary adjustable to represent the quantity x to be integrated, g 2  and g 3  yield voltage e, g 4  yields e or a fixed proportion thereof and g 1  yields e x =x.e, the windings being so connected that g 2 +g 1  deliver e+e x  while g 3 +g 1  deliver e - e x , both voltages being rectified by Gl 1 , Gl 2  respectively and fed to shunt meter motors Z 1 , Z 2 , whose brake magnets B 1 , B 2  are fed from winding g 4 , the voltage of which is proportional to e.
Patent GB-366036-A (GB)
Abstract: 366,036. Television receivers. TELEHOR AKT.-GES., 156, Kantstrasse, Charlottenburg, Berlin. July 23, 1930, No. 22199. Convention date, Aug. 10, 1929. Void [Published under Sect. 91 of the Acts]. [Class 40 (iii).] The scanning disc 1 of a television receiver has a double spiral of apertures and the viewing aperture 4 is adjustable over the area 3, in the directions R, S so as to frame the image correctly. In order to avoid the use of a large lamp so as to illuminate the whole area 3, the lamp is rigid with the viewing aperture and moves with it. The lamp 8 and aperture 4 are adapted to move along a rod 6, Fig. 2, which is rotatable about the axis 7 of rotation of the scanning disc 1.
Patent GB-786645-A (GB)
Title: Improvements relating to microwave transmission devices
Inventor: PATERSON JOHN
IPC: H01P5/18
Filed: 1954-12-18
Abstract: 786,645. Waveguides. FERRANTI, Ltd. Dec. 14, 1955 [Dec. 18, 1954], No. 36662/54. Class 40 (8). A directional coupler for microwave energy comprises a combination of two parallel wave guides 11, 12 having in common a member 13 forming a wall or a part of a wall of each waveguide, slots 14, 15 being provided on opposite sides of the centre line 16 of the member 13, the dimensions being such that at the frequency of the input energy the combination will support both a coaxial-line TEM mode of propagation and a waveguide mode for which modes the phases at the output ends of the slots differ by 90 degrees, or by 90 degrees plus 360 degrees or multiples of 360 degrees. The strip 17 between the slots 14, 15 functions as the inner conductor of a coaxial line, so that microwave energy fed to the end 21 of the waveguide 11 splits up into two parts at the coaxial line to be propagated in quadrature in the TEM and TE 1,1  modes, respectively. The two modes recombine on entering the output sections 23, 24 so that each section delivers a single wave of TE o , 1  mode, the respective voltages having a phase difference of 90 degrees. Practically no energy is fed into the section 22. The slots 14, 15 need not extend to the edges of the member 13. Alternatively, one waveguide may be circular and the other non-circular, the member 13 forming part of the circular waveguide.
Patent GB-979796-A (GB)
Title: Improvements in or relating to finger-operated gardening tools
IPC: A01B1/16
Filed: 1961-10-12
Abstract: 979,796. Weed extractors. G. H. I. CORNWELL. Jan. 11, 1963 [Oct. 12, 1961], No. 36668/61. Heading A1B. A finger tool comprises a cylindrical or part cylindrical body portion adapted to grip the finger of the user by resilient means and a tool portion comprising a weeding implement, extending from one end of the body. The body 10 is formed of synthetic plastics material and is provided with a number of internally extending ridges or projections. Thickened wall portions 12, 13 of the body are apertured at 14 to receive a wire rod 15 having ends which extend outwardly from one end of the body, the extremities 17 being bent up to provide a weeding part of the tool. At the other end of the body the wire forms a U-shape loop 16 to which a cord may be attached and then mounted round the wrist of the user. In a modification, Fig. 6 (not shown), the weeding tool is formed by a metal clip having upstanding lugs, the clip being mounted on the cylindrical body. In another modification the upstanding lugs are moulded integrally with the body. In another modification the body is part cylindrical and is formed from a steel pressing in one piece with the tool. In another modification the weeding tool is formed from a single length of spring wire the body being formed as a coil. In another modification the tool is adapted to be mounted on two fingers.
Patent GB-1164491-A (GB)
Title: Disposable Diaper
IPC: A61F13/15
Filed: 1966-08-17
Abstract: 1,164,491. Laminated disposable diapers. CANADIAN INTERNATIONAL PAPER CO. 17 Aug., 1966 [17 Aug., 1965], No. 36805/66. Heading B5N. [Also in Division A3] A disposable absorbant diaper 11 comprises an elongated pad 15 of loose fibres of cellulosic material formed into a single layer including longitudinally extending adjacent flanking portions 37 of lesser thickness on each side of a longitudinally extending central portion 35 of greater thickness, and an envelope formed of wet strength tissue 13, 19 enclosing the pad, the portions 37 of lesser thickness being folded over upon themselves to form pleats 29. The diaper is formed by laying a continuous layer of cellulosic fibres 35 upon a first web of tissue 13 of approximately three times the width of the pad and folding the tissue 13 around the pad. The enclosed pad is then embossed by rollers 17a, 17b so that longitudinal channels 17 are formed. A further web of tissue 19, carrying spaced reinforcing strips 21, is folded around the assembly which is then passed between rollers 21a, 21b to provide embossed end portions 25 in the region of the strips 21. The rollers 21a, 21b also provide slits 39. The diaper is subsequently folded, spot-embossed at 31 by rollers 31a, 31b, refolded to form the pleats 29, calendered by rolls 32 and cut in the region of the embossings 25 and strips 21 into individual diapers, the slits 39 then providing notches 27 by means of which used diapers may readily be torn longitudinally. The pressure applied by the rollers 27a, 27b and 31a, 31b is sufficient to unite the layers, that applied by the rollers 31a, 31b being sufficient to glassine the cellulosic fibres. The webs 13 and 19 are made of high-wet-strength creped tissue, wet strength being obtained by incorporating therein sufficient melamine resin or other wetstrength agent. In a second embodiment, a sheet of crepe tissue of a width equal to that of the pad and impregnated with micro-crystalline wax is incorporated between the webs 13 and 19.
Patent GB-1039725-A (GB)
Title: Improvements in or relating to the winding of yarn on to packages
Inventor: NORRIS ALAN HEDLEY
IPC: B65H59/38
Filed: 1963-09-19
Abstract: 1,039,725. Winding yarns. LEESONA HOLT Ltd. Aug. 27, 1964 [Sept. 19, 1963], Nos. 36857/63 and 42744/63. Heading D1D. A yarn is wound at a constant tension by passing the yarn from a supply package around a friction wheel which is rotated at a speed greater than the winding speed, and then passing the yarn to a tension controller-for example of the double disc type-before winding the yarn, the arrangement being such that the yarn is substantially tension free in the zone between the wheel and tension controller, the wheel being adapted to grip the yarn if the tension of the yarn in the zone starts to increase and to allow the yarn to slip thereon when the yarn is substantially tension free in the zone. As shown the friction wheel 18 comprises two discs having interdigitated strips 23. A yarn stop motion is provided downstream of the tension controller to stop, on yarn breakage or failure, the electric motor driving the friction wheel, or by means of a clutch, just the wheel.
Patent GB-624022-A (GB)
Title: Improvements in or relating to time bases
IPC: H03K4/12
Filed: 1946-12-16
Abstract: 624,022. Saw-tooth generating circuits. CINEMA-TELEVISION, Ltd., and SOWERBY, J. M. Dec. 16, 1946, No. 37022. [Class 40 (vi)] In a voltage waveform generating circuit of the type which alternates between two distinct states, such as those giving rise to the scan and flyback in the case of a saw-tooth generator, the amplitude of the waveform is stabilized by preventing the instantaneous value of the waveform from exceeding that of a reference voltage. The Figure shows a Puckle type hard valve saw-tooth generator comprising valves 4 and 5 and a main capacitor 1, the positive and negative excursions of the lower plate of which are respectively limited by circuits comprising valves 17 and 6. In the latter circuit current through the right-hand side of cathode-coupled double triode 6 falls with the potential of point P. When it falls below a value determined by the bias EA on the right-hand side, the left-hand side conducts, applying a negative pulse to the suppressor grid of the phasereversing pentode 5 of the time-base, thus starting the flyback and causing the potential of point P to rise until the time base reverts to the scan condition or until rise in potential has been sufficient to cause the left-hand side of double triode 17 to conduct as well as the right, which is normally conducting, so that the potential across the common cathode resistor rises causing valve 16 to conduct and lower the grid potential of the discharging valve 4 of the time base, blocking it and thus initiating the scan. The value of potential at P when this occurs is determined by the voltage across resistor 12 and hence by the bias EB on the right-hand side of valve 17. Synchronization is effected by injecting a suitable waveform into the circuits of valves 6 and 17, or on to the guide valve 4 or valve 5.
Patent GB-1013406-A (GB)
Title: Improvements in planning board or indicator assemblies
IPC: G09F9/00
Filed: 1963-09-20
Abstract: 1,013,406. Planning or indicator boards. PLANOMATIC Ltd., and A. R. JACKSON. Sept. 21, 1964 [Sept. 20, 1963], No. 37129/63. Heading G5C. In a planning or indicator board assembly including interchangeable indicator units 5 as disclosed in Specification 957,539, the units are mounted in columnar form on vertical carriers 4 which hang on horizontal channel rails 3. The carriers 4 are of right-angled cross-section. For mounting a set of more than two units a left and a right handed carrier are disposed as in Fig. 1, and they may be connected by spacing rods 9 (Fig. 7, not shown). To mount sets of two units side-by-side, one of the carriers may be reversed (Fig. 6, not shown), the carriers being detachable by depressing a spring-loaded rail 13. Specifications 733,148 and 927,208 also are referred to.
Patent GB-1163362-A (GB)
Title: Method for the Deposition of a Layer of Bituminous Material Under Water
Inventor: MEIJER HERMANUS
IPC: E02B3/12
Filed: 1967-08-14
Abstract: 1,163,362. Coating apparatus. SHELL INTERNATIONALE RESEARCH MATTSCHAPPIJ N.V. 14 Aug., 1967 [16 Aug., 1966], No. 37277/67. Heading B2L. [Also in Division E1] A method for the deposition of a layer 19 of bituminous material under water on the bottom or talus of a waterway comprises leading a stream of the liquid bituminous material to the bottom or talus of the waterway and giving each particle of the liquid bituminous material under the water surface at least once a flow in an upward direction. In the method shown the flow reverse is given by a bended tube 12 with upper edge 14 at a higher level than the highest point of the inner bend 13 of the bended tube. The upper edge 14 has great length compared with the diameter of the supply conduit 11.
Patent GB-1107011-A (GB)
Title: Improvements in or relating to aircraft
Inventor: HALL LESLIE JAMES
IPC: B64C29/00
Filed: 1963-09-23
Abstract: 1,107,011. Aircraft. HAWKER SIDDELEY AVIATION Ltd. 23 Sept., 1964 [23 Sept., 1963], No. 37347/63. Headings B7G and B7W. [Also in Division F2] The aircraft comprises a fuselage 11, a main plane 16 and a fore plane 15, the area of which may vary from 50 to 100% of the area of the main wing. Ducted fan jet propulsion engines 18 mounted below the foreplane have adjustable nozzles and similar engines 19 mounted above the mainplane have adjustable nozzles, whereby the propulsion jet may be deflected downwardly to give a component of lift at low speeds, the wing area being the minimum necessary to provide adequate aerodynamic lift at cruising speed. The mainplane carries tip fins 23 and trailing edge flaps for pitch and lateral control are provided. The engines may be operated alone or with the flaps to provide a further control effect. In a further embodiment, the rear engines are mounted in the fuselage, from which they are adapted to draw off boundary layer air.
Patent GB-1379878-A (GB)
Title: Hydraulic lash adjuster
IPC: F01M9/10
Filed: 1973-08-08
Abstract: 1379878 I C engine valve gear JOHNSON PRODUCTS Inc 8 Aug 1973 [11 Aug 1972] 37518/73 Heading F1B [Also in Division F2] Engine lubrication oil fed via inlet ports 34, 36 to a reservoir 22 of an hydraulic back-lash adjuster Fig. 2, for an O.H.C. I. C. engine Fig. 1 (not shown) or an hydraulic tappet Fig. 5 for a push-rod I. C. engine, is lowered in pressure within the adjuster, or tappet, reservoir 22 to a pressure less than that supplied to the inlet ports 34, 36 to reduce the pump-up effect at high engine speeds thus permitting higher engine speed operation while maintaining full control of the valve gear. The pressure reduction is effected by a reservoir metering cap 46 which forms a restrictor in the vicinity of the inlet port 36 and has a groove 53 formed in the cup lip 52 permitting a metered flow of oil from  the inlet port 36 as from the reservoir 22 into a bore 58 of the adjuster or tappet closure member, this both reducing the pressure in the reservoir 22 and providing controlled lubrication of the valve gear.
Patent GB-1202403-A (GB)
Title: Device for supervising the course of a railway track during alignment
IPC: E01B35/00
Filed: 1967-08-16
Abstract: 1,202,403. Correcting track alignment. F. PLASSER. 16 Aug., 1967 [26 Sept., 1966], No. 37699/67. Heading B7N. In an arrangement for correcting the horizontal alignment of railway tracks in which a correcting machine 9 co-operates with a reference line 2, the position 4 of the leading end of the reference line is checked against the position of a point 5 in advance of the machine by comparing their images in a mirror 1 disposed on a trolley 6. The position 4 is corrected if necessary by moving the leading end of the line to bring the images into vertical alignment. A second mirror 8 indicates the line of the already corrected track. By viewing a large section of the uncorrected track in advance a good average position track line can be determined.
Patent GB-1199253-A (GB)
Title: Crystallizer
Inventor: VOIGT ROBERT ROCKWOOD
IPC: B01D9/00
Filed: 1966-08-23
Abstract: 1,199,253. Crystallizing. STRUTHERS SCIENTIFIC & INTERNATIONAL CORP. 8 Aug., 1967 [23 Aug., 1966], No. 37701/66. Heading B1G. A vessel 10 has an upper evaporation chamber 11 and a lower crystallization chamber 12 separated by a downwardly extending cone 13 having a plurality of apertures 15 and an extension pipe 14 terminating near the base of the vessel above a solution inlet 22. A propeller at the top of pipe 14 circulates solution downwardly through pipe 14 and upwardly through apertures 15. A crystal slurry is withdrawn through an outlet 25 and mother liquor is withdrawn through an outlet 24 having barrier 33.
Patent GB-1396906-A (GB)
Title: Single lens reflex cameras
IPC: G03B9/64
Filed: 1972-08-15
Abstract: 1396906 Photographic exposure control ASAHI KOGAKU KOGYO K K 15 Aug 1972 [16 Aug 1971] 38082/72 Heading G2A In a single lens reflex camera having an automatic exposure control circuit coupled to the output of a light sensor through a memory switch 15, a lever 1, resiliently biased by the shutter cocking action, is released by the shutter release 3 and moves first to open the memory switch and then to swing the mirror. Fig. 1 shows the mechanism after film winding and shutter cocking. Lever 1 is biased anti-clockwise by a spring 10, so that one arm la bears against a shutter release shaft 3. A second arm 1b bears against a lever 6 which is part of the mirror-actuating mechanism which also includes a lever 8, held against the action of a spring 9 by being latched behind the end of a further lever 7. When the shutter shaft 3 is depressed, a switch 4b is allowed to close, which energizes the light-measuring circuit and charges up the memory capacitor through a switch 15. Further depression of shaft 3 allows the arm 1a of lever 1 to be spring-urged into a groove 3a in shaft 3. The resulting anti-clockwise movement of lever 1 opens the memory switch 15 by means of a pin 16, thus disconnecting the memory capacitor from the light sensor. Arm 1b of lever 1 engages and pivots a lever 6 which actuates the movement of the mirror from the viewing to the exposure position. At the same time the diaphragm is stopped down to its required setting, and the first shutter blind is released to initiate the exposure. After the appropriate time, the second shutter blind is released to terminate the exposure, which causes a gear 12 to rotate anti-clockwise. A pin 13 on gear 12 engages lever 7 and pivots it out of engagement with lever 8. This is then moved by the tensioned spring 9 into the position of Fig. 2 (not shown) which restores the mirror to the viewing position. Lever 8 also pivots lever 1 out of engagement with groove 3a, and pin 16 disengages from switch 15, so allowing it to close once more. When the film is wound on, lever 2 is pivoted anticlockwise, which cocks the shutter again, releases lever 7 from pin 13, tensions the spring 10, and forces lever 8 back until it latches again behind lever 7. The Fig. 1 position is thus reached once more.
Patent GB-1473712-A (GB)
Title: Multi-row root-crop-lifting apparatus
IPC: A01D25/02
Filed: 1974-08-30
Abstract: 1473712 Multi-row root-crop harvesters MACHINEFABRIEK J DE JONGE BV 30 Aug 1974 [31 Aug 1973] 38086/74 Heading A1F A multi-row root crop harvester comprises pairs of lifting shares 3, 4 and 5 mounted on a frame 1 by means of a transverse beam 2. The root crops, upon being engaged by the lifters, are seized by the ribs of the feed conveyor 12, 13 which boasts the lifting effect of the shares. Crops are entrained between the above-mentioned conveyor and a discharge conveyor 7, 8 which also serves to remove them to the rear of the machine. On the surface of the feed conveyor 12, 13 and lying between the crop lifters 3, 4; 4, 5 are two rows of pins 16. These prevent sideways movement of smaller root crops and remove soil and leaves adhering to the crop lifters.