baber/WOPTO huggingface dataset:
Patent GB-694468-A (GB)
Title: Improvements in or relating to electrical signal transmission systems
IPC: H03M3/04
Filed: 1951-06-26
Abstract: 694,468. Television. WESTERN ELECTRIC CO., Inc. June 26, 1951 [June 29, 1950], No. 16124/51. Class 40 (iii). [Also in Group XL(c)] A signal transmission system, particularly for the transmission of television signals, comprises at the transmitter means for obtaining from the original signal two trains of derived signals representing respectively the time length and the slope or height of straight-line segments which approximate to, or fit, the contour of the waveform of the original signal, the two trains of derived signals being transmitted to a receiver where they are used to generate a local signal having a waveform similar to that of the original signal. Fig. 7 illustrates the fitting of the straight-line segments to the original signal, pairs of signal pulses corresponding to H1 and T1, H2 and T2 &c. being transmitted in succession. The signals derived at the transmitter representative of the quantities H and T are pulse coded and are stored in one of two storage tubes. During the storage of signals in one tube, previously stored signals are being read from the other at a uniform rate, the switching from " reading " to " writing " and vice-versa occurring at the end of each line. A similar pair of storage tubes is used at the receiver, the incoming signals being switched from one tube to the other at the end of each line.
Patent GB-564507-A (GB)
Title: Improvements in or relating to valve tappet constructions
IPC: F01L1/25
Filed: 1942-10-28
Abstract: 564,507. Valve tappets. EATON MANUFACTURING CO. Oct. 28, 1942, No. 15131. Convention date, July 24, 1941. [Classes 7 (v) and 7 (vi)] A valve tappet for use in internal-combustion engines gives zero clearance between tappet and valve during normal operation of the engine, but has means to effect a predetermined tappet clearance to cause substantial reduction in valve lift, particularly to facilitate starting and idling. The tappet comprises a body 4 which receives a cylindrical shouldered sleeve 10 having a reduced lower portion which contains a ball valve assembly 14. The lower part of the body 4 accommodates a piston 22 urged upwardly by a spring 23 and carrying a pin 24 which when moved upwardly unseats the ball 14. The sleeve 10 encloses a plunger 12 urged upwardly against the valve stem by a spring so that no clearance exists between the tappet and the valve stem. In normal running, while the valve is opening, oil below the plunger 12 is trapped, thus affording in effect a rigid tappet. Loss of fluid past the plunger is compensated by flow of fluid past a valve 20 to the space below the sleeve 10. For starting, the valve 20 is moved either manually or automatically to the Fig. 3 position, wherein pressure fluid can escape from the space below sleeve 10, whereupon the piston 22 is moved upwardly by its spring and the pin 24 unseats the ball valve. This allows the piston 12 to fall under load to Fig. 3 position and so reduces the valve lift but allows the engine to function on a modified timing. As soon as the valve 20 is restored to the Fig. 1 position, pressure fluid is readmitted to operate piston 22 and normal operation is resumed. Specification 466,161 is referred to.
Patent GB-1325979-A (GB)
Title: Vehicle with longitudinally adjustable load bearing axle
IPC: B62D61/12
Filed: 1972-03-30
Abstract: 1325979 Vehicle suspensions; wheel arrangements R L FEARON 30 March 1972 [30 April 1971] 15200/72 Headings B7D and B7H A vehicle for transporting heavy loads comprises steerable wheels 24 at the front of a main frame 20, driving wheels 26 at the rear of the main frame, and a set of auxiliary wheels 34 mounted on an extensible frame portion 30 which can be extended or retracted in a direction parallel to the longitudinal axis of the main frame 20 to permit adjustment of the proportion of the weight of the load carried by the auxiliary wheels 34 and the driving wheels 26. The extensible frame portion 30 includes spaced parallel  rails 38 slidably received in box-members 36 forming the rear of the main frame 20. Gear racks 46 on the rails 38 engage pinions driven by reversible hydraulic motors mounted on the box-members 36. The auxiliary wheels 34 are carried by an axle 32 mounted on trailing links 60 and connected to an hydraulic cylinder 62 which enables the wheels 34 to be lifted off the road or the pressure thereon to be varied. A hydropneumatic spring 63 is connected to the cylinder 62 to afford resilient suspension for the wheels 34. The auxiliary wheels 34 may be mounted on king-pins and connected by a track rod 74 so as to be self-steering, or an hydraulic power steering unit may steer the wheels 34 when the front wheels 24 are steered. The vehicle may carry a concrete mixing drum 14 as shown or an elongated mast, Fig. 2 (not shown), which can be erected by an hydraulic cylinder. An air spring, Fig. 6 (not shown), may replace the hydraulic cylinder acting on the auxiliary wheels.
Patent GB-705085-A (GB)
Title: A liquid strainer for use with vacuum flasks
IPC: A47J31/14
Filed: 1951-06-27
Abstract: 705,085. Filters. THOMAS, A. June 23, 1952 [June 27, 1951], No. 15203/51. Class 46 A strainer, for tea and other beverages, adapted to be inserted into the neck B' of a vacuum flask, is made from a single piece of material and has a flange portion A' and a tubular portion of greater axial length than the diameter thereof. The bottom has perforations A<SP>1</SP>. The strainer may be pressed from sheet metal or may be moulded from a synthetic resin such as polystyrene.
Patent GB-1403934-A (GB)
Title: Suspended type centrifugal separator
IPC: B04B9/06
Filed: 1973-03-29
Abstract: 1403934 Centrifugal strainer SHIN NIPPON MACHINERY CO LTD 29 March 1973 15296/73 Heading BID [Also in Division F1] A centrifugal strainer basket 4 is suspended by its drive shaft in a fixed housing and rotated by a steam turbine 2, which comprises a shaft 11 to which are secured rotors 13, 14 adapted to be urged in opposite directions by supplying steam through pipes 16, 18. Steam is supplied through pipe 16 to rotate the basket in one direction at various speeds for charging centrifuging and discharging, and steam is supplied through pipe 18 only to use rotor 14 as a brake to slow the basket down after centrifuging. Spent steam discharges through outlet 17. Valve 27 controlling steam supply to forward rotor 13 is controlled by a series of timers which each cause a different preset voltage to be compared with the voltage generated by a tachometer (28) on shalft 11 and adjust the valve to equalise the voltages and thus reduce or increase the speed to a corresponding level. Valve 29 controlling braking rotor 14 is controlled by another timer and a limit switch. Basket 4 is filled with sugar slurry from hopper 6 and emptied after lifting valve 23 by scraper 8.
Patent GB-468875-A (GB)
Title: Improvements in or relating to the production of rubber structures as for example sponge-like or cellular rubber upholstery
Filed: 1936-06-02
Abstract: 468,875. Cellular rubber; moulding by dipping. INTERNATIONAL LATEX PROCESSES, Ltd., MURPHY, E. A., TROBRIDGE, G. W., and WARD, A. N. June 2, 1936, No. 15318. [Classes 70 and 87 (ii)] Cellular rubber articles such as cushions are made by applying frothed or unfrothed dispersions of rubber, guttapercha, balata, or the like to a number of prismatic formers mounted in parallel relationship and so spaced that ribs or webs of dispersion are formed connecting the deposits on the formers, effecting coagulation vulcanizing and. stripping. Square, hexagonal or triangular formers, or combinations of shapes may be used. The spaces a left by the formers are capped over with rubber at one end, while the intermediate spaces b are open at both ends. A layer of deposit may be formed on each side of a temporary support, e.g. of paper surrounding the formers which is then carefully withdrawn and the deposit pressed on to the remainder before vulcanizing. Coagulation is effected by using heat sensitized dispersions and heated formers, or by first dipping the formers into coagulant and then into the dispersion, or by spraying the deposit with a coagulant such as a solution of acetic acid in alcohol. Synthetic rubbers, mineral rubber, factice, rape oil, vulcanized oils, cellulose esters or casein may be added to the dispersions as well as usual compounding ingredients. Specifications 290,313, 332,525, and 332,526, [all in Class 70], are referred to.
Patent GB-104140-A (GB)
Title: An Improved Revolving Cowl for Chimneys, Ventilation and the like.
Inventor: COLLINS ALFRED JAMES
IPC: F23L17/10
Filed: 1916-10-27
Abstract: 104,140. Collins, A. J. Oct. 27, 1916. Addition to 101.922. Chimney &c. tops. -In a modificationof the invention described in the parent Specification, t h e cowl a is supported by a spindle g rotating in a fixed tube d and on a bearing e, and the central parts of the diametrical blades i are cut away to allow them to revolve about the tube d.
Patent GB-111107-A (GB)
Title: Improvements in or relating to Electrical Accumulators.
Inventor: COTTE EMILE ALEXANDRE
IPC: H01M10/00
Filed: 1917-10-25
Abstract: 111,107. Cotte, E. A. Oct. 25, 1916, [Convention date]. Cases and stands; electrodes; separators; gas exits.-An accumulator is enclosed in an hermetically sealed celluloid or like outer case 17 through the sides of which pass the end connectors 19, while the gas exits 15 of individual closed cells, pass through the cover. The intermediate connexions are thus protected against short-circuiting by electrolyte from the gas exits. The gas exits are of such diameter as to retain the electrolyte by atmospheric pressure if the battery is inverted. Pedestals 11 and spacing-rings 12 support the cells within the case. Two or more electrodes 1, 8 may be placed one above another, with the interposition of spiders for maintaining uniformity of distance. The electrodes may consist of leadantimony, celluloid, vulcanite, or like baskets, filled with treated spongy lead or other active mass. Insulated conductors 4 pass down the sides of the cells to the bottoms of the baskets, where they widen out.
Patent GB-743057-A (GB)
Title: Improvements in or relating to evaporators
IPC: B01D1/06
Filed: 1951-06-30
Abstract: <PICT:0743057/III/1> <PICT:0743057/III/2> <PICT:0743057/III/3> <PICT:0743057/III/4> <PICT:0743057/III/5> <PICT:0743057/III/6> <PICT:0743057/III/7> An evaporator comprising a wall 1 defining a main passage for the liquid, a heat exchanger 7 adjacent said wall, a liquid inlet 10 and exit 6, and a vapour offtake 2 adjacent to and of smaller cross-section than the inlet 10, is characterized in that the plane of the end cross-section of the inlet 2 lies outside any plane parallel thereto and intersecting the passage 1 and in that the wall 1 is extended beyond the heat exchanger 7 on the liquid inlet side to form a short parallel passage.  Curved guide walls may be provided at the end of the main passage adjacent the vapour exit.  In operation liquid from a reservoir 4 flows through the annular opening constituted by the elements 1, 2 and down the wall 1 in the form of an annulus which ultimately reforms to fill completely the off-take passage 6; the vapour formed during the heat exchange is thus forced to reverse its direction of flow and pass off through the offtake 2. The construction described is adapted (Fig. 2) to form a counterflow evaporator of the shell and tube type in which liquid fed through pipe 39 to header 38 flows down through a plurality of pipes 31 secured in tube plates 32 and heated by hot vapours fed through the shell 34 provided with vapour offtake and inlet 35, 36.  The vapours formed are taken off through tube stumps 37, arranged in the header 38, to a vapour header 40 and outlet 41.  The construction is suitable for use in heat exchangers of the sectional type which are built up of simple plates separated by spacing frames as shown in Figs. 3-7 where main and secondary plates 51, 52 are spaced apart by spacing frames 63, 65, 70-71, and 76, 78 to form main evaporator passages 58, heat exchange passages 59, vapour offtakes 60, liquid inlet 75 and outlet 97. The frames are provided with cut-out portions 53-56 affording access for heating means and removal of liquid and vapours.  The plates and spacers are assembled and locked in position between end plates 81, 82 clamped by a screw 91 working in an end-piece 90.  Curved guide walls 101 afford smooth flow of liquid to the passages 58 and curved plates 99 afford smooth flow of vapour. In a modification the plates may be of curved or wavy configuration; (Figs. 8-12, not shown) illustrate an evaporator adapted for upward flow of liquid.  Reference is made to "The Counterflow Evaporator Element" (Engineering and Boiler House Review), July 1951. Specifications 626,075 and 627,859, [both in Group XIII] are referred to.
Patent GB-947887-A (GB)
Title: Improvements relating to the processing of textile yarns
Inventor: BRANDWOOD JOHN TAYLOR
IPC: D06B5/16
Filed: 1961-04-29
Abstract: 947,887. Dyeing yarn. DYE TUBE DEVELOPMENTS Ltd. July 30, 1962 [April 29, 1961], No. 15591/61. Headings D1F and D1L. In a method of obtaining dyed, bleached, washed or other liquor-processed yarn in package form, the yarn is wound into package form on perforated tubes in a ring frame and subsequently several such tubes are mounted on a carrier for immersion in a processing vessel, the mounting and carrier means allowing the passage of liquor from and/or to the centre of the packages so as to be passed through the yarn. As shown in Fig. 1 perforated tubes 1 on which packages 2 have been wound are mounted on flanged spindles 3 each of which is screwed by its hollow boss 4 into the top wall 5 of a hollow, disc-shaped carrier. The hollow base of each spindle is provided with apertures 3a and the top of each tube 1 is closed by a resilient washer held in place by the tube retaining nut 9 so that liquor may flow from the hollow carrier into the tube and through the package or vice versa. A number of disc-shaped carriers may be mounted on a central post 11 and each may be supported by the tops of the spindles on the carrier below, in which case each carrier may be arranged to seal the tops of each tube or spindle lying beneath it. In an alternative form the perforated tubes 1 and hollow, perforated posts on which they are mounted are similarly shaped so as to fit closely together. In a further form a number of the perforated tubes are fitted end to end on a fluted or perforated spindle with sealing means between them and several such assemblies are held between upper and lower disc-like parts, the lower of which is hollow to form part of the flow path for the liquor. Specifications 885,530, 886,110 and 947,886 are referred to.
Patent GB-718705-A (GB)
Title: Improvements in or relating to automatic frequency control
Inventor: RATCLIFFE STANLEY
IPC: H03L7/04
Filed: 1952-06-20
Abstract: 718,705. Automatic frequency control systems. MINISTER OF SUPPLY. June 1, 1953 [June 20, 1952], No. 15630/52. Class 38(4) In an AFC system for control of a klystron oscillator by joint adjustment of the resonator cavity and the reflector voltage, the error-detecting circuit is connected to the reflector by an A.C. coupling having a time constant larger than the response time of the cavity adjustment, whereby slow increase in the degree of mistune is counteracted by cavity adjustment, and faster increase by reflector bias control. The reference frequency may be continuous or pulsed. At starting, or when the klystron frequency is outside the lock-in range the motor driving the cavity adjustment may search over wider limits until a lock-in frequency is attained. In Fig. 1 the output of the klystron 5 is mixed at 2 with a reference oscillation 4 to provide a beat frequency which is amplified at 3 and fed to a frequency discriminator 1. The detected error voltage through a circuit 6 controls a motor 7 and gearing 10, from which a shaft 9 adjusts the klystron cavity, and a shaft 12 drives a potentiometer slider 11 to adjust the reflector bias. Correction is thus provided for slow changes of the degree of mistune. More rapid changes are provided for by applying the error voltage from the discriminator 1 through a condenser 14 (or a transformer) to the reflector electrode which gives a rapid though transitory adjustment of the frequency until the slower-acting motor adjustment becomes effective. When the reference oscillation is discontinuous or pulsed, the output of the discriminator comprising positive (or negative) pulses is fed at 16, 17, Fig. 3, through a pair of diodes V1 to an integrator valve V2. The integrated output passes to the grid of a valve V3 forming a cathode-coupled pair with a valve V4. The anodes of valves V3, V4 are connected to field coils reversibly controlling a motor M for adjusting the cavity of the klystron. Quick changes of the degree of mistune are corrected by connecting the anode of the valve V2 through a condenser 14 to the reflector electrode. The motor M also drives a generator G whose output is connected to the grid of the valve V3 as described in Specification 606,673. When the tuning error is too great to permit direct locking- in, a frequency-sensitive test member 15, Fig. 1, connected to the mixer output 2 releases a relay and throws the contact SI to connect the grid of the valve V3 to a limit switch T. This causes the motor M to drive the klystron tuning through a wide range and to reverse its direction at each limit of the range by throwing the switch T. As the klystron tuning reaches the lock-in range, the test member 15 operates its relay SI to bring the AFC into action. The motor may control the cavity adjustment by screw-and-nut mechanism, Fig. 4 (not shown), operating a plunger within the cavity as in Specification 718,721. Specification 670,238 also is referred to.
Patent GB-1437179-A (GB)
Title: Nonwoven sheet films
IPC: B32B7/09
Filed: 1972-04-05
Abstract: 1437179 Laminates SCOTT & FYFE Ltd 3 July 1973 [5 April 1972] 15662/72 Heading B5N [Also in Division D1] In the production of a laminate a plurality of stretch - oriented polypropylene films are separately stitched transverse to the stretch direction to split the film into strips or fibrils and connect them together by rows of stitches. The stitches may comprise simple rows or a 2-dimensional interlocked pattern may be used. Two or more of the resulting fabrics are placed one upon the other with the strips of each fabric extending transversely to those of the adjacent fabric or fabrics and the assembly is laminated by further stitching. The product may be needled or tufted.
Patent GB-1019598-A (GB)
Title: Crankcase ventilation systems for internal combustion engines
Inventor: CRAIG GEORGE
IPC: F01M13/04
Filed: 1964-04-15
Abstract: 1,019,598. Crankcase ventilation systems. FORD MOTOR CO. Ltd. April 15, 1964, No. 15678/64. Heading FIB. Oil is removed from crankcase gases sucked through pipe 23 into the intake manifold by a filter 18 having an inlet 19 for the gases and a return conduit 21 for returning oil to the crankcase, a baffle 35 over the inlet 19 deflecting the oil droplets in the gases on to the wall 39. Impurities in the gases and any remaining oil droplets are removed by a filter pad 29. The flow of crankcase gases is controlled by a suction actuated valve 15 and the return pipe 21 communicates with the crankcase through the fuel pump housing 10.
Patent GB-107906-A (GB)
Title: Improvements relating to Vibratory Massage Apparatus.
Inventor: HILLMAN JAMES CHARLES
IPC: A61H23/00
Filed: 1916-11-03
Abstract: 107,906. Hillman, J. C. Nov. 3, 1916. Massage and vibratory treatment. - The device comprises a tubular casing a, in which is mounted a spring-retracted plunger c, bearing the massage device, and a shaft h carrying a ratchet-wheel g adapted to be rotated from the exterior by a handle i to reciprocate the plunger c.
Patent GB-693604-A (GB)
Title: Improvements in or relating to heating appliances for use in airing or drying clothes
IPC: D06F58/14
Filed: 1951-07-03
Abstract: 693,604. Clothes-airers. ALVAREZ, A. July 3, 1951, No. 15789/51. Class 52(v) A clothes-airer comprises a heater formed by heater elements 1 at the focal point of three parabolic reflectors 2 joined by their sides 9 thus forming a central cavity 10 within which is a tubular member 11 which houses an umbrella-type clothes airer in its out of use position. A cylindrical member 18 fits within the tube 11 and is held in its operative upper position by means of a screw 26 passing through the tube 11. Extending upwardly from the member 18 is a rod 19 on which is slidably mounted a member 23 held in adjusted position by a screw 27. Rods 22 pivoted to the member 18 and rods 24 pivoted to the member 23 are pivotally connected at 25. A clothes line 28 is attached to the central rod 19 and to the rods 22.
Patent GB-109148-A (GB)
Title: Improvements in Vacuum Breakers adapted for use with Condensing Steam Engines.
Inventor: MORTON HARRY EUGENE
IPC: F28B11/00
Filed: 1916-11-07
Abstract: 109,148. Morton, H. E. Nov. 7, 1916. Valves actuated after predetermined flow. - A valve 24, Fig. 1, for breaking vacuum in a condenser in the event of an abnormal rise of water is opened by the fall of a weighted lever 28 which is normally supported in a raised position by trip mechanism 70, 71 &c., the trip mechanism being released by the downward movement of a receptacle 35 into which the water flows from the condenser. As shown in cross-section in Fig. 4, the device comprises a frame 20 attached to the side of the condenser and communicating with the vacuum space by an aperture 21. The receptacle 35 is formed with an elbow 37 fitting over the aperture 21 and arranged to act as a pivot on which the receptacle 35 turns. The receptacle 35 is normally held in the raised position by a counterweight 45 on a lever 46 turning on pivots 47 supported by a bracket 49. The upward movement of the receptacle 35 is limited by a stop 101 with which the end of lever 46 contacts and the downward movement is limited by a stop 58. The trip mechanism comprises a lever 70 supported by a pin 71 on an arm 73 erected on a bracket 74. The pin 71 engages a slot in the upper end of the lever 70 in order to provide for vertical movement of the lever. When the receptacle 35 is in the raised position, a latch 80 on the lower end of the lever 70 is held by a bevelfaced projection 81 on the receptacle 35, and the lever 28 is supported by a pin 76 which enters a recess formed between projections 75, 77 on the lever 70. Upon the fall of the receptacle 35, the lever 70 swings to the left, the pin 76 is disengaged, and the lever 28 falls until it reaches a stop 85, thus opening the valve 24. The parts of the vacuum breaker are restored to position by lifting the lever 28, the lifting of the receptacle 35 being ensured by a finger 90 on the lower end of the lever 70 which engages a hook 91 on the receptacle 35. A pipe 95, Fig. 4, communicates with the exhaust-pipe. The vacuum may be broken when the receptacle 35 is empty by lifting the counterweight 45 by means of a lever 64, thus allowing the receptacle 35 to fall.