baber/WOPTO huggingface dataset:
Patent GB-544826-A (GB)
Title: Improvements in the production of tar binders
IPC: C10C3/06
Filed: 1940-12-04
Abstract: 544,826. Tar oil preparations. MIDLAND TAR DISTILLERS, Ltd., PARKES, D. W., and EVANS, R. B. Dec. 4, 1940, No. 17256. [Class 91] A road surface or road material, such as chips; has applied thereto a coating consisting of a residue obtained by distilling to a suitable consistency a polymerised oil that has itself been produced by distilling coal that is not heavier than middle or creosote oil. The products known as " naphtha still bottoms " and " benzol still bottoms which are left as residues after the purification of crude naphtha and crude benzol respectively, which purification includes the step of polymerization with strong acid, such as sulphuric acid, are suitable sources of the polymerized oils. The fractions known as cresylic creosote or carbolic'oil and middle or creosote oil obtained from distilling coal tar, after polymerization, are also suitable sources of the polymerized oils. The distillation of the polymerized oils is effected until the residues, if liquid at normal temperatures, have viscosities not lower than 30 seconds at 30‹C. and, if solid at normal temperatures, have melting points not higher than 120‹C. (Ring and Ball). Quick drying coating materials may be obtained by continuing the distillation until the residue has a consistency similar to that of coal tar pitch and then oiling back the latter with a volatile solvent. Suitable solvents are heavy refined coal tar, tetrachlorethane, chloroform, carbon disulphide, turpentine, ethyl acetate, white spirit and other petroleum fractions. Sufficient of the volatile solvent may be used in oiling back the residue as to allow the coating produced to be applied cold. The coating materials may be coloured by addition of pigments thereto. Examples of compositions of mineral aggregates with the coloured coating materials are given. Specification 541,575, [Group V], is referred to.
Patent GB-509365-A (GB)
Title: Improvements in or relating to razors
IPC: B26B19/04
Filed: 1938-01-12
Abstract: 509,365. Dry shavers. AMERICAN SAFETY RAZOR CORPORATION. Jan. 12, 1938, No. 17277. Convention date, Jan. 18, 1937. Divided out of 509,310. [Class 131] In a dry shaver, which may be of the kind described in Specification 509,310, wherein an oscillating blade 26 with two cutting edges co-operates with fixed cutting edges 19, 21 formed by casing teeth 18, the device for oscillating the blade 26 comprises a motor-driven shaft 40 carrying a crank-pin 38 which engages a bore in a pin 32 rotatably and slidably mounted in a bore in the blade carrier 24. The latter is pressed against the casing by spring-pressed plungers.
Patent GB-1435355-A (GB)
Title: Servo control
IPC: G05B19/18
Filed: 1973-04-11
Abstract: 1435355 Automatic control XENEX CORP 11 April 1973 17296/73 Heading G3N The value of a first quantity as a function of a second quantity is determined by command signals to effect servo-control of the first quantity; the signals being first and/or higher order digital difference of the first quantity in respect of the  function for equal increments of the second quantity. As shown, a power servo 20 controls the X-axis movements of a machine-tool in response to input data on a tape read by a reader 10 and fed to an interpolator 12, which may be a general purpose digital computer. The X-axis movements are determined with respect to a spindle 22 driven by a motor 16 and coupled to a reference generator 14 providing a velocity signal VR, an incremental movement pulse #R and a direction signal DR. The interpolator provides, in response to signals DR, # R, command signals S 1 , S 2 , as parallel binary words, representative respectively of first order (velocity) and second order (acceleration) values of the function of X with respect to spindle rotation. The signals S 1 , S 2  are fed to a processing unit 18 and are gated by the signal # R, the signal Si being fed into a velocity channel 62 and a position error channel 60 and the signal S 2  fed into an acceleration channel 64. In channel 62 signal Si, through gate 80, updates a register 84 the contents of which, through a D/A converter 86, is weighted by the signal VR in a multiplier 86 to form the X-axis velocity signal VX. In channel 60 the signal Si, through gate 66, is summated in an adder 72 with the X-axis pulses #P from a transducer, (not shown), coupled to the X-axis servo-drive, and stored in a register 74 the contents of which is the position error; this error through a D/A converter 76 provides the signal EX. The channel 64 is similar to channel 62 but the signal VR is squared in a multiplier 106 to provide record-order weighting, through multiplier 102 to an X-axis acceleration signal AX.  The X-axis servo 20 comprises an amplifier, summating the signals VX, EX, AX, which feeds a power amplifier, with rate feedback, energizing a servomotor.  In an alternative embodiment the interpolator provides an acceleration signal only. It is stated that servo can be controlled solely by a velocity signal.
Patent GB-530024-A (GB)
Title: Improvements in or relating to radio and like transmitters
IPC: H03C1/22
Filed: 1939-06-14
Abstract: 530,024. Modulating systems. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. June 14, 1939, No. 17417. Convention date, June 14, 1938. [Class 40 (v)] In a high efficiency modulating circuit arrangement, carrier power is fed to a load by a valve which is connected to the source of anode current through a low frequency choke, a second valve supplies supplementary power during positive half-waves of modulation, and a third valve consumes power during negative modulation halfwaves. The class C amplifier H1 is connected to the anode current supply + Ua through the low frequency choke Dn and the high frequency choke D1, and supplies unmodulated carrier frequency power to the load R connected across the tank circuit L, C1, C2, valve H2 operating in class C is connected to the source + Ua through the high frequency choke D2 and is driven by both carrier and modulating voltages in such phase that during the positive modulating half cycles it contributes power to the tank circuit and load. The choke Dn maintains the feed current of valve HI steady and thus causes a rise in anode voltage and increase in power output during the positive modulation half cycle. The valve H3 is connected directly across the tank circuit and its anode is supplied by a low voltage source + U2, its grid is driven with carrier and modulating potentials in phase opposition to valve H2, and since it is blocked on positive modulation half waves and takes current in the positive half periods of anode alternating voltage it thus consumes power to produce the negative half cycles of modulation. The choke Dn prevents the feed current of valve H1 rising due to the decrease in the effective load. Specification 497,343 is referred to, and a circuit embodying that invention is described.
Patent GB-1158781-A (GB)
Title: Automatic Sensitivity Control Circuit for Camera Tubes of Television Systems
Inventor: ATTEW JAMES EDWARD
IPC: H04N5/235
Filed: 1965-04-26
Abstract: 1,158,781. Cathode-ray tube circuits. AUTOMATIC INFORMATION DATA SERVICE Ltd. 22 July, 1966 [26 April, 1965], No. 17420/65. Heading H4T. In an automatic sensitivity control for a television camera the video signal is applied via a source resistance Rs to a peak-to-peak rectifier D 1 , D 2  the output of which is amplified by a D.C. transistor amplifier VT and utilized to control the target potential of the camera tube. The source resistance Rs is selected such that the rectifier ignores transient peaks of small time duration (e.g. small highlights) and to overcome the reduction in rectifier efficiency which Rs produces the efficiency is increased by a forward bias produced by resistor R 1 .
Patent GB-634571-A (GB)
Title: Improvements in and relating to yarn feeding means in knitting machines
IPC: D04B15/54
Filed: 1946-06-11
Abstract: 634,571. Knitting-machines. KILLIAN, E. June 11, 1946, No. 17446. [Class 74 (ii)] A yarn guide for feeding a plating yarn or terry yarn, when producing fabric on a machine described in Specification 634,569, comprises two parts 20a, 20b, the front part 20b, in which the yarn guide eyelet is formed, being pivotally attached to the body part 20a which is supported in the normal manner between lugs on the machine. An abutment 26 is formed on the part 20b and a corresponding abutment 27 (not shown) is formed on the part 20a and together these abutments form stops limiting the movement of the part 20b when swung in the two directions.
Patent GB-781276-A (GB)
Title: Improvements in and relating to the casting of metals
Inventor: SMITH WILLIAM ANDERSON
IPC: B22D37/00
Filed: 1954-06-15
Abstract: 781,276. Casting-machines. STEW ARTS & LLOYDS, Ltd. April 7, 1955 [June 15, 1954], No. 17557/54. Class 83 (1). When casting metal, the stream of metal from the ladle to the mould is enveloped by an unconfined curtain or shroud of inert gas. Inert gas is supplied to an annular orifice 16 in the ladle stopper-box-casting 3 and issues as a truncated conical-curtain 20 about the pouring- jet. When bottom-pouring, the top of each mould may be closed by a cover-plate having a restricted outlet.
Patent GB-175713-A (GB)
Abstract: 175,713. Whittle, O. L. Nov. 11, 1920. Radiators, motor-car.-One or more tubes 4, 5 of flat section coiled spirally around a central tank 1 form water passages leading to a tank 7. Water from the engine enters the central chamber from a pipe 10 and is forced through the tube or tubes 4, 5 by a pump 16 within the chamber 1 to the tank 7 and thence by the pipe 11 to the engine. The convolutions of the tubes 4, 5 are held apart to leave air spaces 6 by diagonal or radial straps 18.
Patent GB-1020181-A (GB)
Title: Improvements in or relating to impermeable barriers in multiconductor cables
Inventor: JORDAN REGINALD JOHN
IPC: H01B13/32
Filed: 1963-05-06
Abstract: 1,020,181. Fluid impermeable barriers in cables. PIRELLI GENERAL CABLE WORKS Ltd. April 13, 1964 [May 6, 1963], No. 17751/63. Heading H1A. Fluid-impermeable barriers are formed in the type of cable having a plastic sheath covering plastic insulated conductors by applying local heat to the cable sufficient to melt the sheath and insulation, so that they fuse together on cooling to form the barrier. The cable is heated at the desired points by a pulsed high-frequency power unit, the plastic of the sheath and insulation acting as the dielectric between two stationary electrodes. In the embodiment described the plastic, which may or may not be the same for the sheath and conductor insulation, is P.V.C.
Patent GB-1219458-A (GB)
Title: Improvements in and relating to carbon arc-light sources
Inventor: HARRINGTON ROGER ERTLE
IPC: H05B31/18
Filed: 1968-04-16
Abstract: 1,219,458. Arc lamps. UNION CARBIDE CORP. 16 April, 1968, No. 17784/68. Heading H1X. Cooling liquid is dispersed in. the contacting area between a carbon electrode and a hollow jaw of an electrode holder. The carbon 10 is held in semi-cylindrical recesses in hollow jaws 12 and 14 to which cooling liquid is supplied under pressure through pipes 20 and 24 and leaves through pipes 22 and 26. Each hollow jaw has an internal baffle and one or more openings through the wall of the recess. Due to liquid pressure and rotation and feeding of the electrode, a film of liquid, e.g. water or recirculated ethylene glycol, is dispersed over the whole contact area between the electrode and the jaws which may be of silver with copper-plated graphite inserts. The electrode may have a core of 50% by weight of rare earth salts and 50% graphite with minor amounts of additives and a shell of graphite.
Patent GB-645243-A (GB)
Title: Improvements in and relating to the production of artificial monofils
IPC: D01F9/04
Filed: 1948-07-02
Abstract: Artificial monofils are produced from fibre-forming salts of polyuronic acids (such as alginic and pectic acids) by extruding an aqueous solution of a water-soluble salt of a polyuronic acid through a single-hole jet into a coagulating bath containing a metal salt which forms a water-insoluble salt of the polyuronic acid, maintaining the monofil formed in contact with an aqueous solution containing the same metallic radical as that employed in the coagulating bath until the monofil is substantially set, drying the set monofil at a temperature not exceeding 40 DEG  C. in a strain-free condition so that it is free to contract, re-wetting the monofil so that it undergoes swelling and finally drying the monofil whilst longitudinal shrinkage is prevented.  The extruded monofil may be set in the coagulating bath but is preferably set in one or more subsidiary baths after short passage through the coagulating bath, or alternatively it may be collected in a rotating pot containing setting solution.  The setting solution may have the same composition as the coagulating bath but this is not essential provided that the same metallic radical is present in each to ensure complete insolubilization.  The set monofil is dried, preferably at a temperature between 15 DEG  and 25 DEG  C.  The dried product, which is partly shrunk and crinkled in appearance is then re-wetted with water or an aqueous solution, e.g. dilute hydrochloric acid or calcium chloride, to cause appreciable swelling.  At this stage, it may be converted if desired from a water-insoluble to a water-soluble form.  It is then washed and finally dried at 60-80 DEG  C. under slight tension (on a former, if desired) to prevent further shrinkage, giving a monofil of uniform circular cross-section.  In an example, a 7 per cent solution of sodium alginate is extruded into a coagulating bath containing 5 per cent calcium chloride and 0.2 per cent acetic acid in water, and collected in a coil in a rotating pot containing 3 per cent calcium chloride.  The set monofil is dried without washing at 20 DEG  C.  The dried calcium alginate monofil is converted by repeated leachings with dilute hydrochloric acid to an alginic acid monofil, which in its turn is converted to a sodium alginate monofil by immersion in 75 per cent ethyl alcohol to which a small amount of phenol phthalein is added and 20 per cent caustic soda added from time to time until a permanent pink colour is obtained. The sodium alginate monofil is soaked in a solution containing 95 parts ethyl alcohol and 5 parts water containing 0.1 per cent acetic acid, wound under tension on a former and dried at 60 DEG  C.
Patent GB-277272-A (GB)
Title: Improvements relating to vessels with handles
IPC: A47G23/02
Filed: 1927-07-05
Abstract: 277,272. Soc. Anon. Economique de Paris S.E.P. May 21, 1927, [Convention date]. Drinking-vessels. - A detachable handle 4 for a vessel, such as a cup 1, is carried by a collar 3 having projections 6 on its inside surface. The collar is placed in a groove 2 on the outside of the vessel, the projections 6 passing through grooves 7, and is secured by turning it to wedge the projections 6 against cam shaped ledges on the surface of the groove 2.
Patent GB-330144-A (GB)
Title: Improvements in or relating to rests for pens, pencils or the like
IPC: B43M99/00
Filed: 1929-06-11
Abstract: 330,144. Conway, Stewart, & Co., Ltd., and Jeff, J. June 11, 1929. Right to Patent relinquished. Pen, pencil, and like stands. - A stand or rest for pens, pencils, and the like is provided with a tubular pen - receiving socket which is pivoted universally and has a range of angular movement such that it may be swung downwardly as far as the horizontal in any direction. The base 2 of the device is provided with a short pedestal 3 formed with a vertical bore to receive the cylindrical lower end of a member 5 which is bifurcated at its upper end to form journals for a pivot pin 6 passing through an interfitting portion 4 at the lower end of the pen-receiving socket 1. The upper end of the member 5 is provided with a flange resting upon the top edge of the socket 3, and a shouldered disc b secured by a screw 8 at the bottom end of the member 5 forms an abutment for a compressed helical spring 7 which provides a frictional resistance opposing the rotation of the member 5. The screw-threaded hole passes axially through the member 5 and contains a small abutment 9 and helical spring 10 retained in position by the screw 8 and providing frictional resistance to the pivoting movement of the member 4.
Patent GB-367688-A (GB)
Title: Improvements in siphon apparatus
IPC: F04F10/00
Filed: 1931-06-22
Abstract: 367,688. Siphons. MIDWINTER, E. C., 27, Augustus Road, Southfields, London. June 22, 1931, No. 17983. [Class 69 (i).] A priming-device for a siphon comprises a pump cylinder a to the bottom of which is connected the delivery end of the siphon ; near the end of the upward movement of the plunger c under the influence of a spring m, an outlet i. at the upper end of the cylinder is uncovered to permit discharge through a pipe k. A spring h coiled around the pistonrod d limits the uppermost position o the plunger so as to provide a reservoir l for leakage, which is discharged on the downstroke. A buoyant, non-return valve o may be provided in a seating n in the base of the cylinder and the spring m may be replaced by an external spring. A catch may be provided to hold the plunger in the depressed position, or alternatively, the pipe k may be fitted with a spring-operated tap or cover.
Patent GB-1170356-A (GB)
Title: Apparatus for Conveying Cut Tobacco by means of a Belt provided with Projecting Pins or Pegs
IPC: A24C5/39
Filed: 1967-04-19
Abstract: 1,170,356. Feeding tobacco. HAUNIWERKE KORBER & CO. K.G. 19 April, 1967 [14 July, 1966], No. 18001/67. Heading A2C. [Also in Division B8] An apparatus for conveying cut tobacco 2 from a storage container 1 to a hopper 8 comprises a bottom endless conveyor belt 3 feeding towards an inclined endless conveyor belt 4 incorporating projecting pegs, and an inclined guide 7 which receives tobacco from the apex 6 of the belt 4 and that tobacco which drops out of the return run of the belt 4. The hopper 8 is positioned at the bottom of the guide 7 and under the belt 4 to collect tobacco from the guide 7. Tobacco dropping through a gap 10 between the belts 3 and 4 falls into the hopper 8 either directly or via a guide. A pneumatic conveyor tube 9 connected into the hopper 8 conveys tobacco to a cigarette making machine. A rake wheel may be provided to equalise the quantity of tobacco being conveyed to the hopper.
Patent GB-1222808-A (GB)
Title: Improvements in or relating to data exchange systems
IPC: G06F13/00
Filed: 1969-04-09
Abstract: 1,222,808. Automatic exchange systems. SIEMENS A.G. 9 April, 1969 [10 April, 1968], No. 18060/69. Heading H4K. Data incoming to a program-controlled exchange over so-called feeders Z and outgoing over any selected so-called trunk A, feeders and trunks being paired and served by an associated one of the so-called control circuits St1 to Stn, is processed on a one-at-a-time basis in accordance with data recorded in a store SP, the processing required by each demand being effected in a single processing operation that does not permit interruption or postponement. The pairs of feeders and trunks are connected to the respective control circuits St by way of code multiples ECV, ACV, and code converters ECW, ACW. A circuit ASt selects particular control circuits for gating of data from feeders to processing circuits or from the processing circuits to trunks. Processing is effected in logic circuit OE in accordance with orders S, O, L, or U. Order S allows transfer of incoming data to word register R1 from which it may be gated into a storage section SZ of SP or to a selected trunk. Order L similarly gates read out from a storage section SZ. Order O effects disjunctive combination of the data from SZ and data incoming from a feeder. Order U effects conjunctive combination of this data, a binary zero in the data from SZ causing R1 to be reset. The data read from a section SZ may be placed in a register (R2), Fig. 2, not shown, before it is delivered to the logic circuit OE it being possible to selectively feed back to R2 data that has been processed in one step in logic circuit OE so that it may be presented for processing in a second step. The register R1 may be dispensed with, a register in the read out path from store SP to the logic circuit OE having the output of OE selectively fed back to it for second step processing and a register being provided between the incoming data and the logic circuit, Fig. 3, not shown.
Patent GB-774844-A (GB)
Title: Improvements in or relating to a method for manufacture of corrugated diaphragms andapparatus therefor
IPC: B21D13/04
Filed: 1955-06-22
Abstract: 774,844. Making bellows; corrugating; spinning. MELCHIOR, F. C. June 22, 1955, No. 18126/55. Classes 83 (2) and 83 (4). In a method of making corrugated diaphragms for capsules of pressure instruments a blank 8; Fig. 9, with initially formed shallow concentric grooves is supported in a die 6 having corrugations of the required form into which the blank is pressed by a series of balls 5 under the action of a rotary punch 7. The blank is clamped in the die 6 by a ring 24, Fig. 6, actuated by an hydraulic cylinder through tie rods 26. The punch 7 is rotatable on bearings 22 in a crosshead 18 which is slidable on rods 15 to bring the punch into engagement with the balls, the movement being limited by a micrometer screw stop (not shown). The die 6 may be of generally concave or convex form and may be changed so that a blank of concave or convex form may be rolled on each side in turn. The blank may be finished by rolling simultaneously both sides between dies having suitable grooves and for this process the blank is released by the clamp 24 so that it is free to rotate.
Patent GB-1502449-A (GB)
Title: Machine for washing and cleaning vegetable roots or tuber
IPC: A23N12/02
Filed: 1975-05-01
Abstract: 1502449 Washing vegetable roots or tubers SOC FRANCO-EUROPEENNE DE MATERIEL POUR L'INDUSTRIE ALIMENTAIRE 1 May 1975 [17 May 1974] 18214/75 Heading A4C Vegetable roots and tubers are cleaned in a pair of aligned troughs 2 each vibrated by an unbalanced motor 5, the roots being fed on to the downstream end of the upper run of a conveyer and after falling into a trough being moved along the troughs by blades 6 spaced along the conveyer, water sprayed from pipes 18 running down the troughs in the opposite direction and being recycled by a motor driven pump 22 after filtering in a rotary gauze filter 25. The conveyer is driven by an electric motor 17 via a chain 14 and drives the filter from a toothed pulley 11 via a chain. The troughs are inclined and have corrugated bases, the blades moving a few centimeters thereabove. The water from the pump is supplied via a main pipe 20 and valves 21.