baber/WOPTO huggingface dataset:
Patent GB-1111289-A (GB)
Title: Improvements relating to data transmission systems
IPC: H04L25/48
Filed: 1965-08-26
Abstract: 1,111,289. Compensating line distortion; pulse code modulation systems. INTERNATIONAL BUSINESS MACHINES CORPORATION. 26 Aug., 1965 [10 Sept., 1964], No. 36763/65. Headings H4L and H4R. Distortion in a line transmission system which causes spurious signals preceding and/or following a transmitted pulse is corrected by applying the received signal to a chain of series connected delay line sections Tc1 Tc2 and Tc3, Fig. 5, the sections of which are bridged by attenuators, and phase inverters if required, Kc1, Kc2, Kc3, K<SP>1</SP>cl, K<SP>1</SP>c2 and K<SP>1</SP>c3, so that the input pulse signal is fed through the attenuator-inverters Kc1 to Kc3 to adders Sc1 Sc2, Sc3 to cancel the spurious signals preceding the pulse, while the pulse appearing at the points Pcl, Pc2 and Pc3, between the line sections, is fed back to an adder Sc at the input, via the attenuatorinverters K<SP>1</SP>cl, K<SP>1</SP>c2, K<SP>1</SP>c3, to cancel the spurious signals following the pulse. Cancellation occurs at points separated from the main pulse peak by the delay time of the individual delay line sections which is made equal to the repetition period of the pulse transmission system so that the effect of the spurious signals of one pulse on an adjacent pulse is eliminated. If the spurious signals only precede or only follow the transmitted pulse then one set of attenuator-inverters, e.g. K<SP>1</SP>cl, K<SP>1</SP>c2, K<SP>1</SP>c3 or Kc1, Kc2, Kc3, may be eliminated. In alternative forms of the invention further delay sections may be provided to give compensation over a greater range of time scales, Figs. 7 and 8 (not shown), or an alternative method of eliminating spurious signals following the transmitted pulse comprises a number of delay line sections with connections via attenuator-inverters from the output of the last section to taps between the sections, Fig 2 (not shown). Reference has been directed by the Comptroller to Specification 1,017,150.
Patent GB-1153438-A (GB)
Title: Improvements in or relating to the Injection of Disaerated Plastic Materials
Inventor: PONCET PIERRE
IPC: B29C45/23
Filed: 1966-08-18
Abstract: 1,153,438. Injection moulding machines. P. PONCET. 18 Aug., 1966, No. 36942/66. Heading B5A. Plastics material is de-aerated prior to injection by continuous cycling between an injection cylinder 37, a valve 27 and a heated vacuum chamber 18 which includes a perforated plate 17 for forming fine filaments of the material. With the valve 27 in the position shown, plasticized material is fed by a screw 23 from the chamber 18 to a chamber 39 of the cylinder 37, thereby forcing a piston 38 to the right. At the right-most position of piston 38 the valve 27 is moved to connect chamber 18 through pipes 26, 36 with a chamber 40 of the cylinder 37 which in turn forces piston 38 leftwardly and expels plasticized material through pipes 35, 32 and 34 into the entry part 15 of the chamber 18. The material is successively recycled in this way until it is substantially gas-free with the piston 38 in its right-most position. Valve 27 is then moved to close pipe 35, screw 23 is stopped, and the material is injected into a mould 45 by action of an hydraulic ram 43 on the piston 38. The material is preplasticized by a screw 10 and fed thereto from a hopper 1 under a partial vacuum of about 1 mm. Hg. The vacuum obtained by a pump 20 in the chamber 18 is about 10<SP>-4</SP> mm. Hg. and the screws are driven by electric motors 7, 11, 24 respectively. The injection nozzle (Fig. 4, not shown) includes a head (61) screwed to a body (62) the outlet (61a) being normally closed by an axial plunger (63) urged thereinto by a spring (65) acting on a washer (64) attached to an inner end of the plunger. During injection the pressure of the plastics material overcomes the spring pressure and retracts the plunger from the nozzle.
Patent GB-856424-A (GB)
Title: Improvements in or relating to casting
Inventor: SAVAGE JOHN
IPC: G05D9/04
Filed: 1955-12-28
Abstract: 856,424. Continuous - casting machines. BRITISH IRON & STEEL RESEARCH ASSOCIATION. Feb. 8, 1957 [Dec. 23, 1955], No. 36963/55. Class 83 (1). A continuous-casting apparatus comprises an enclosed space 21 between the mould 12 and a duct 15 for supplying molten metal, and means for adjusting the pressure in the space to control the rate of metal flow. The mould 12 is lubricated as in Specification 794,255, is supported on springs, as in Specifications 715,282 and 806,803, and is cooled by water flowing through pipes 23, 24. Nitrogen, argon or a reducing-gas is supplied by a pump 27 to the space 21, which is bounded by bellows 16, 17, and which has a leak 19 to atmosphere. Valves 28, 29 in the supplyline 26 and a bleed-line 30 are controlled by relays 31, 32, actuated by pressure-switches 41, 42. The switches 41, 42 are operated according to the level of metal in the mould, which allows one or both of two lines 35, 36 to release pressure in lines 38, 39, supplied with an inert or reducing-gas by a pump 37. Several moulds may be supplied from a common source.
Patent GB-791354-A (GB)
Title: Process for the heat treatment of steel
IPC: C21D1/40
Filed: 1955-12-23
Abstract: A process for heat treating steel bars, billets, or plate slabs comprises heating the part for a short time to a temperature between 500 and 1200 DEG C. by means of an electric current passed through the length of the part, and then subjecting the part, if necessary after cooling to 650 DEG C. or below, to heating in a furnace for a long time.  The time of the first heating may be 20 to 80 seconds and the second heating may be an annealing, an isothermal transformation or a homogenizing treatment.  The first heating may raise the temperature to over 1000 DEG C. and the current be so adjusted that the temperature in the interior of the part is in advance of that at the surface.  The part may be subjected to a tensile stress during the first heating to maintain or produce a straightening.  The process is stated to produce a fine grained structure.
Patent GB-790088-A (GB)
Title: Preparation of benzene hexachloride compositions
Inventor: GRUBER MAX HERMANN
IPC: C07C17/38
Filed: 1955-12-24
Abstract: A benzene hexachloride composition, rich in the gamma isomer, is obtained by forming an alcoholic solution of a mixture of the gamma isomer and at least one other isomer and adding water to precipitate the composition and separating the latter within 25 minutes of its formation.  Preferably the degree of water-dilution is to 5-30 per cent by weight of water of the liquids present. The alcohol used may be a lower aliphatic alcohol such as methanol.  Figures showing the optimum degrees of dilution for production of gamma-enriched mixture, are given.  The process may be made continuous.  An example with table of the separation of products having varying proportions of gamma isomer according to the degree of water dilution and the precipitation time up to 50 minutes, is given.  Specifications 659,810 and 732,368 are referred to.
Patent GB-1103503-A (GB)
Title: Apparatus and methods for dispensing measured volumes of fluid
IPC: G01N1/00
Filed: 1964-09-10
Abstract: 1,103,503. Delivering measured quantities of liquid; sampling. A. N. BLADES. 19 Aug., 1965 [10 Sept. 1964], No. 37037/64. Heading B8N. A measuring and dispensing apparatus for fluids comprises a member 2 movable relatively to a member 3 and having a measuring chamber 1 adapted, in one position, to be aligned with conduits 4, 5 so that fluid may fill the measuring chamber and, in another position, aligned with conduits 6, 7 so that the measured quantity of fluid may be caused to be dispensed. As shown in Fig. 1, a first fluid, such as blood, is drawn into the measuring chamber 1 via conduits 4, 5 and upon rotating the member 2, in the form of a tapered plug valve, into a position in which the chamber is aligned with the conduits 6, 7, a second fluid is fed through the conduit 6 so as to force the fluid in the chamber through the conduit 7 to e.g. an analytical apparatus. In modifications, two chambers may be formed in the plug member for cooperation with their respective conduits in the member 3 or the measuring chamber may be formed in the stationary member. The relatively movable member of the apparatus may be of glass or synthetic plastics material and the rotary member may be replaced by a reciprocable member.
Patent GB-971073-A (GB)
Title: Stuffing box assembly for fluid pressure device
Inventor: HANSEN GEORGE EDWARD
IPC: F16J15/18
Filed: 1963-09-20
Abstract: 971,073. Stuffing-boxes; valves. CRANE Ltd. Sept. 20, 1963, No. 37189/63. Headings F2B and F2V. In a stuffing-box assembly for a valve &c. the box 12 extends through an aperture 11 in a bonnet 8 and is clamped in position by the bonnet engaging a flange 13 on the box, a yoke 17 is secured to the box as by threads 16, and the packing 10 is compressed by eye bolts 27 pivotally mounted on bolts 25 or pins extending through pairs of lugs 22, 23. The flange 13 fits in a recess 15 in the valve casing 1 and is sealed therein by a gasket 14. The lugs 22, 23 are formed in a retainer 21 held between a shoulder on the yoke and the bonnet which has projections 34 positioned between the lugs. The yoke has arms 33 to support an outer bearing (not shown) for the valve stem 5. When the packing is being inspected or replaced, the bolts 27 may be pivoted outwardly between the lugs. In a modification, Figs. 4-6 (not shown), the lugs are integral with the yoke.
Patent GB-848918-A (GB)
Title: Improvements in or relating to means for feeding continuous stationery
Inventor: GOREHAM PETER ERNEST
IPC: B41J11/51
Filed: 1956-12-05
Abstract: 848,918. Typewriters &c. LAMSON PARAGON Ltd. March 5, 1958 [Dec. 5, 1956; May 28, 1957], Nos. 37235/56 and 16965/57. Class 100(4) Apparatus for feeding a continuous web of stationery in a typewriter, tabulator, addressing or like office imprinting machine comprises a solenoid S for effecting a single or multiple line spacing feed at the completion of each line of imprinting and a motor M connected by a clutch C to the web drive to effect a long feed. When the next imprinting portion of the web reaches a platen 1 the clutch C is disengaged and a brake B engaged to stop the feed. After a further single line spacing feed by the solenoid S imprinting is resumed. The motor M may operate continuously or be started and stopped by signals from the imprinting machine when a long feed is required but in any event the signal ensures that the motor is rotating at its full operating speed when the clutch C is engaged. Variable line spacing can be effected by the solenoid S a selector switch being provided which, when another switch is closed at the completion of a line, can be set to give any number of line spacings which is a factor of twelve. Specifications 757,302, 777,491, 789,605, 802,893 and 830,697 are referred to.
Patent GB-904129-A (GB)
Title: Improvements in or relating to mouthpiece units for breathing apparatus
IPC: B63C11/22
Filed: 1960-10-31
Abstract: 904,129. Respiratory appliances. SPIROTECHNIQUE. Oct. 31, 1960 [Nov. 30, 1959], No. 37336/60. Class 81 (2). A mouthpiece unit 1 for breathing apparatus consists of a mouthpiece 2 and a T-junction including a tubular member 1 to one end of which is connected a hose 4 leading to a demand air regulator and to the other a hose 5 leading to an expiration valve, a deflector 6 directing the flow of inhaled air towards the mouthpiece 2. Alternative forms of deflector are a thin plate mounted on the member 1 at la at a right or other angle thereto.
Patent GB-853533-A (GB)
Title: Strip material feeding mechanism
IPC: B21D43/09
Filed: 1958-11-20
Abstract: 853,533. Metal strip feeds. LITTELL MACHINE CO., F. J. Nov. 20, 1958 [May 2, 1958], No. 37367/58. Class 83 (4). [Also in Groups XVI and XXIV] Apparatus for feeding strip material to a punching &c. machine comprises feed-rolls driven intermittently through a one-way clutch 53, and means 67 for locking the clutch to prevent over-running of the rolls upon deceleration of the driving gear. The mechanism for straightening and feeding the strip is the same as that described in Specification 794,943. A constantly-applied disc-brake 77 on the roll feed-shaft 38 replaces the shoe-brake of that Specification, and the clutch 53 has pistons 67 operated mechanically, electrically or by fluidpressure to lock its hub 55 against the casing 54. The pistons may be applied as the shaft 38 is accelerating and released just before it comes to rest. Instead of engaging the bore of casing 54, pistons parallel with shaft 38 may apply a discbrake (Fig. 6, not shown) against an end of casing 54. Alternatively, the pistons in opposed pairs (Fig. 7, not shown) may force bevelled brake-plates against the opposite ends of casing 54.
Patent GB-1397630-A (GB)
Title: Tractor counterweight assemblies
IPC: B62D49/06
Filed: 1972-08-10
Abstract: 1397630 Tractor counterweights INTERNATIONAL HARVESTER CO 10 Aug 1972 [30 Aug 1971] 37415/72 Heading B7H A tractor counterweight assembly includes a support bracket 24 for the weights 27, on L- shaped bar 40 extending through an opening 37 in each of the weights and fastened to the bracket to prevent vertical and longitudinal horizontal movement of the weights, and cam means in the form of washers 47 for preventing lateral movement. Bar 40 is mounted on bracket 24 by bolts 43 at either side of the weight unit and washers 47, having fixed hexagona heads, are eccentrically mounted on the bolts, so that rotation of the washers may move the weights toward the centre of bar 40. Bar 40 and bracket 24 have a number of mounting bores 50, 51 for bolts 43 thus allowing for differing numbers of weights to be used. The weights may have projections 53 which locate in the unused bores 50.
Patent GB-1168622-A (GB)
Title: An Improved Bearing.
Inventor: DUDLEY DESMOND JOHN
IPC: F16C27/06
Filed: 1965-09-03
Abstract: 1,168,622. Bearings. HUMBER Ltd. 2 Dec., 1966 [3 Sept., 1965], No. 37670/65. Heading F2A. A bearing comprises a shaft in a ring 15, itself within a resilient annulus 10, having annular lips 16, 17 sealing against the shaft. In Fig. 2, two lips are provided and the spaces between them and the ring are filled with grease. The annulus 10 has locating projections 11, 12, and a groove 14 in which ring 15 press-fits. Alternatively the ring is bonded in the groove, or the annulus moulded around the ring. The annulus 10 is of rubber and the ring 15 of polyurethane.
Patent GB-1400775-A (GB)
Title: Reverse-osmosis apparatus
IPC: B01D63/02
Filed: 1972-08-14
Abstract: 1400775 Reverse-osmosis apparatus MONSANTO CO 14 Aug 1972 [13 Aug 1971] 37837/72 Heading B1X An apparatus comprises a vessel having an opening at one end thereof, a bundle of hollow fibres looped back to form a "U" disposed within the vessel and elastomeric sealant material surrounding and separating the fibres at the ends thereof proximate the said one opening and securing the bundle in the said one opening in fluid-tight manner. The apparatus may be used for purification of brackish water by reverse osmosis. The fibres may be of polyethylene terephthalate, polyvinyl chloride, polyvinylidene chloride, polyhexamethylene adipamide, copolymers of tetrafluoroethylene and hexafluoropropylene, polystyrene, copolymers of butadiene and styrene, acrylonitrile polymers, polyvinyl formals or butyrals, polyolefins, polyurethanes, cellulose acetate or ethyl cellulose.
Patent GB-1038109-A (GB)
Title: Micro-volume sample cells
IPC: G01N21/03
Filed: 1964-09-16
Abstract: 1,038,109. Optical apparatus. BECKMAN INSTRUMENTS Inc. Sept. 16, 1964 [Oct. 7,1963], No.37922/64. Heading G2J. A micro-volume sample cell for spectroscopic analysis and other optical measurements, wherein the cell block from the optical mask defining the cross-sectional area of the beam, comprises a cell body 11 having a plurality of side walls 13-17 defining a cavity 18 and aperture 20 extending therethrough and terminating at the outer faces of side walls 14, 16, where it is sealed with transparent windows 23, 24, contiguous to the faces of walls 14, 16, and covering the aperture 20, there also being provided a removable insert 12 fitted into the cavity 18 and seating adjacent one side wall so as to define one limit of the aperture, the cell body 11 and insert 12 being opaque from 175 millimicrons to 3 microns. As shown the side walls 14, 16 have V-shaped slots 21, 22 to facilitate filling and a small angle #, such as 2 degrees is provided between the faces 32, 33 of insert 12 and side walls 13, 15, of cell body 11 to reduce capillary action between them.
Patent GB-1443334-A (GB)
Title: Chain
IPC: F16G13/10
Filed: 1973-08-10
Abstract: 1443334 Chains GKN TRANSMISSIONS Ltd 19 July 1974 [10 Aug 1973] 37930/73 Heading F2Q A chain for use in steplessly variable speed gears comprises a plurality of interconnected links 10, 10a, 10b, 10c and 10d, each adjacent pair of links being pivotally interconnected by a ball 28, 28a ... 28d in such a way that relative movement between the links of each pair is permitted about three mutually perpendicular axes passing through the centre of the ball. Each link comprises a ring-shaped body 11 and a pair of oppositely-directed abutment members 14, 15 each having three arms 16, 17, 18 terminating in projections 21, 22, 23 which are adapted to engage a dove-tail groove 12 in the body 11. Relative rotation between adjacent pairs of links can be limited by spacers 33 each consisting of a ring 34 having six projections 35, Fig. 7. The links may be made of metal, such as spring steel, or of plastics material.
Patent GB-1071038-A (GB)
Title: Copolymers and vulcanisable mixtures
IPC: C08L23/16
Filed: 1964-09-18
Abstract: A copolymer of (a) at least one 1-olefine, (b) at least one aromatic compound substituted by one or more vinyl or allyl groups or such substituted compounds in which the vinyl or allyl groups together with a carbon atom of the aromatic nucleus form a ring, and (c) at least one other diene or polyene containing 6 or more carbon atoms, is made by effecting the polymerization of the monomers in the presence of a catalyst comprising an organometallic compound of Groups I to III of the Periodic System, and a compound of Sub-Groups IV to VI of the System.  Specified (a) olefines are ethylene, propylene, butene-1, pentene-1, and 4-methylpentene-1.  Specified (b) compounds are styrene, alpha-methyl-styrene, divinyl benzene, allylbenzene, diallylbenzene, indene, and vinylnaphthalene.  The (c) compound may be 1,4-hexadiene, 1,5-hexadiene, 1,9-decadiene, dicyclopentadiene, tricyclopentadiene, tetracyclopentadiene, 2,2,1-dicycloheptadiene, cyclooctadiene-1,5, or 1,2,4-trivinylcyclohexane.  Suitable catalyst components are ethyl aluminium dichloride, diethylaluminium chloride and mixtures, and VOCl3, VO(OR)3, VO(OR)Cl2, and VCl4 where R is a hydrocarbon radical. The copolymerization is preferably effected in a hydrocarbon or halogenated hydrocarbon solvent, and may be carried out batchwise or continuously. Exemplified copolymers are of (1) ethylene-propylene-styrene-dicyclopentadiene, (2) ethylene - propylene - styrene - trivinylcyclohexane, (3) ethylene - propylene - divinylbenzene - dicyclo - pentadiene, and (4) ethylene - propylene - divinylbenzene - 1,2,4 - trivinylcyclohexane. The copolymers are vulcanized by conventional methods.
Patent GB-384275-A (GB)
IPC: G03C7/14
Abstract: 384,275. Reproducing lenticular films. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Alexanderson, E. F. W. ; 8, Adams Road, Schenectady, New York, U.S.A.) Feb. 19, 1931, No. 5283. Convention date, June 30, 1930. Void [Published under Sect. 91 of the Acts]. [Class 98 (ii).] In the reproduction of films having linear lenticles, the film 1 is illuminated by parallel light. Two projecting lenses are used the first lens 8 forming bands 12<1>, 13<1>, 14<1> corresponding to the bands 12, 13, 14 in the film, at a plane 10 corresponding to the plane of the taking filter. The other lens 9 is adapted to form corresponding exposure bands 12<11>, 13<11>, 14<11> on the sensitive film 2.
Patent GB-1439645-A (GB)
Title: Method and apparatus for measuring movement of a diffraction grating
IPC: G01B11/00
Filed: 1973-08-15
Abstract: 1439645 Photo-electric measurement of grating movement ERNST LEITZ GmbH 15 Aug 1973 [21 Aug 1972] 38556/73 Heading G1A [Also in Division H4] Apparatus measuring movement of a diffraction grating 4 includes a laser 1 producing a pair of circularly polarized waves of equal intensity and different frequencies (for example by Zeeman splitting by magnet 2); beam divider 3 acting with bi-refringent plate 11 forming relatively orthogonally polarized ordinary and extra-ordinary beams, photo-electric detectors 8, 9 and differential amplifier 12 to generate an electrical reference signal of a frequency corresponding to the frequency difference V 1 -V 2  between the two beams. The other beam from the divider passes through  plate 5 where the right hand and left hand circularly polarized waves are converted to a pair of mutually orthogonally linearly polarized waves of frequencies V 1 , V 2  respectively which are passed by Wollaston prism 6 and reflector 7 to the grating 4 where the frequencies V 1 , V 2  are Doppler shifted and the difference frequency is determined as for the reference signal to provide a measurement signal. The measurement and reference signals are passed to comparator 13 from which the output is fed to counter 14. In the embodiment of Fig. 2 (not shown) a fixed phase grating (16) is arranged as a splitter and is situated in the focal plane of lens 17, which with further lens (17') images grating (16) on the grating 4. Between the lenses in their common focal plane a diaphragm 19 is provided having openings (20, 21) with crossed polarization filters (22, 23). A Pockels cell (18) is provided for phase shift correction between the orthogonally polarized beams. A system measuring displacement components in two co-ordinates Fig. 3 (not shown), utilizes a laser excited in two laser oscillation modes at two different frequencies.
Patent GB-1357568-A (GB)
Title: Packaging device
IPC: B65B23/10
Filed: 1971-08-18
Abstract: 1357568 Packaging SIG SCHWEIZERISCHE INDUSTRIE-GES 18 Aug 1971 [28 Aug 1970] 38652/71 Heading B8C Stacks 3 containing equal numbers of biscuits are fed by a chain conveyer 6 to a device 11 which compresses each stack to a set length, a carboard strip 35 then being positioned with the bent ends of each strip engaging the ends of a compressed stack. The device 11 comprises a ram at either end of the stack. A pusher 17 moves the compressed stack between guide rails 30 of a further chain conveyer 32. A cardboard web fed between guides 46 and 47 is scored by wheels 50 and then cut into strips 35 by knives 53, 54. A ram 56 with a pair of sharp edges engaging the score lines pushes each strip onto an inclined plate 59 with the ends of the strip being bent along the scored lines by converging guides 58. As a stack is fed on to the strip a tongue 60 holding the strip is removed and the stack and strip further conveyed to be wrapped in a film, or packed with other stacks in a box, or for adhesive tape to be applied to hold the ends of the strip in position.
Patent GB-939660-A (GB)
Title: Apparatus and method for measuring capacitance
IPC: G01R27/26
Filed: 1960-11-11
Abstract: 939,660. Measuring electrical capacitance. C. G. HANSSON. Nov. 11, 1960 [Nov. 20, 1959; June 22, 1960], No. 38551/60. Class 37. A capacitance Cx is measured by comparison with a known capacitor C, the difference between the known and unknown capacitance being measured by the provision of two voltage measures 6, 7 of opposite polarity and gates 1, 2, 3, 4 controlled by an oscillator 5 such that the discharge currents from the capacitors flow through the meter in opposition. In the embodiment of Fig. 6, any difference in the discharge currents causes a servomotor 1 to drive capacitor C until the difference is zero, when the reading on C gives the value of Cx.