baber/WOPTO huggingface dataset:
Patent GB-339335-A (GB)
Title: Improvements in sound records
IPC: G11B3/70
Filed: 1929-08-29
Abstract: 339,335. Little, Inc., A. D., (Assignees of Billings, H. J.). July 17, 1929, [Convention date]. Compound sheet materials.-A sound record comprises a backing 11, a record sheet 12, and a thin coating 21 consisting of shellac and a filler on the record sheet 12, and such record sheet comprises felted fibres associated with thermoplastic binder, part of which binder flows outwardly upon fusion under heat and pressure during manufacture so as to unite the record sheet to the backing to form a continuous surface b, Fig. 3, wholly encasing the fibres. The backing 11 may be a solid non-resilient core or a laminated structure comprising a plurality of sheets 15 formed of a mouldable compound and preferably alternating with sheets 16 formed of hard paper. The record sheet 12 and sheets 15 are formed by kneading wet fibrous material under heat with thermoplastic material, adding water, and felting the pulpy mass into sheets. The binder is in excess of that which can be absorbed by the fibrous material so that when the backing comprising the sheets 15, 16 is assembled with a coated record sheet 12 at one or both sides, and heat and pressure is applied, the excess binder flows outwardly and encases the fibres. The thermoplastic binder may consist of anv gum, natural resin or phenolic condensation product which is shellac-like in function. The record sheet 12 may comprise shellac, 48 per cent; graphite, 25 per cent; paper pulp, 22 per cent; and carbon black and rosin. The sheets 15 may comprise 66 per cent of thermoplastic binder and 34 per cent of fibrous material. The coating for the record sheet may comprise shellac &c., abrasive filler, china clay &c., and pigment. The layers forming the backing may be assembled previous to the formation of the record and united under heat and pressure to form a unit. The grooves 25 are arranged to extend into the record sheet 12 so that the walls of the grooves are reinforced by the fibrous structure of the record sheet.
Patent GB-742435-A (GB)
Title: Improvements in and relating to power saw chains
Inventor: BISHOP CECIL
IPC: B27B33/14
Filed: 1953-09-24
Abstract: 742,435. Chains. TELES SMITH, Ltd. Sept. 24, 1954 [Sept. 24, 1953], No. 26308/53. Class 24. [Also in Group XXIII] The central links 1 and 2 and the side links 3 of a saw chain for a power-driven chain saw have each a nose 5 at one end which bears on the rounded end of a succeeding link during the straight part of the run of the chain. The side links 4 and 4a may each have a nose 5 but, particularly where the nose would foul the outer curve 1b of the cutter teeth 1a when the chain bends round a sprocket, both ends of the links may be rounded.
Patent GB-1475326-A (GB)
Title: System for transmitting a coded voice signal
IPC: H04B1/66
Filed: 1974-06-14
Abstract: 1475326 Bandwidth economy system; time division multiplex KOKUSAI DENSHIN DENWA KK 14 June 1974 [15 June 1973] 26454/74 Headings H4R and H4M In a speech signal transmission system coded samples of speech are fed into a buffer memory 4, a speech detector 5, and to a waveform analyser 6. During speech its frequency components are analysed and the buffer memory contents sampled at a rate which is dependent on the frequency components present, i.e. being high when high frequencies are present and low when only low frequencies are present. A control signal is generated and transmitted with the speech samples to indicate the sampling rate. At the receiver a buffer memory 14 stores the received samples and the control signal is received, at 15, and controls, via circuit 17, an interpolator which replaces those speech samples which were not transmitted with samples interpolated between adjacent transmitted samples. In one embodiment a second buffer memory (24) Fig. 3A (not shown) is fed with non-speech information, e.g. telegraph signals, which is transmitted when speech samples are not being transmitted, and in a further embodiment a number of speech signals are treated in time division multiplex Figs. 5A, 5B and 6 (not shown). As described the speech signals are sampled at a sampling frequency of 8 kHz and coded in an 8 digit PCM system. The wave analyser measures zero crossings, or alternatively peaks, in a 10 msec. interval. In dependence on the frequency of zero crossings, or peaks, the apparatus transmits every coded sample, every alternate coded sample, or every fourth coded sample, the sampling rate also being transmitted in a two bit code with the value 00 indicating that there is no speech signal. The sampling rate is transmitted every 10 msecs. as a 6 bit signal, the code being repeated three times to provide error correction by a majority decision system, alternatively the code can be transmitted at every change of state.
Patent GB-1065602-A (GB)
Title: Novel substituted 5-(amino-propylidene)-dibenzo[a,d]-cyclohepta[1,4,6]trienes and the manufacture thereof
IPC: C07D499/68
Filed: 1964-06-26
Abstract: Novel compounds of formula <FORM:1065602/C2/1> wherein each of the symbols R represents a lower alkyl group, X and Y each represent a hydrocarbon substituent which, when alkyl, may be joined to one another directly or through an oxygen or nitrogen atom (which nitrogen atom may carry an alkyl, hydroxy or hydroxyalkyl substituent) to form a ring which includes the N-atom to which they are attached, or one of them may form a similar ring with one of the lower alkyl groups which may be attached to the propylidene chain, and Hal represents a 10- or 11-halogen substituent, and wherein the broken lines denote that the groups attached thereby are optional, and acid addition salts thereof, are prepared either by dehydrating the corresponding 5-aminopropyl compound having a hydroxy substituent in the 5-position of the tricyclic system or on the 1-position of the 5-aminopropyl substituent or, where the optional alkyl groups on the propylidene chain are not involved in ring formation, reacting the corresponding 5-halopropylidene or 5-propenylidene compound with an appropriate primary or secondary amine, and, in either case of required, converting the product into an acid addition salt. Therapeutic compositions having action on the central nervous system, narcosis potentiating, psychostimulating, adrenolytic, sedative, antihistaminic, antiemetic, antipyretic, local anaesthetic and hypothermic action, which may be administered enterally or parenterally, contain as active ingredients compounds of the formula given above.
Patent GB-724044-A (GB)
Title: Improvements in or relating to the method of manufacturing transistors
IPC: H01L21/00
Filed: 1952-10-22
Abstract: 724,044. Transistors. INTERNATIONAL BUSINESS MACHINES CORPORATION. Oct. 22, 1952 [Nov. 7, 1951], No. 26510/52. Class 37. During the manufacture of transistors, electric pulses of progressively increasing energy are applied to one of the electrodes to produce similarity in the collector current/voltage characteristics. Fig. 1 shows an arrangement in which the collector current-voltage characteristic is displayed on a cathode-ray oscilloscope. A saw-tooth waveform from source 14 is applied between the collector and base electrodes of transistor 12, and also to the X-deflection plates of the cathode-ray tube 12. The collector current is measured by the potential across resistance 16, which is applied to the Y-deflection plates. Characteristics for various values of emitter voltage are shown, the emitter voltage being raised in steps by means of source 20, which is synchronized with sawtooth source 14 so that a complete collector current/voltage characteristic is shown for each successive value of emitter voltage. Pulse source 28 is used to apply pulses of successively increasing voltage or current between the collector and base electrodes, which by modifiying the semi-conductor surface around the collector electrode, change the shape of the collector characteristics. Fig. 4 shows the collector characteristics of a treated transistor which previously had characteristics as shown in Fig. 2. The pulses from source 28 may be provided by condenser discharge, and may be in the reverse direction, although forward direction is preferred. Pulses may also be applied alternatively or additionally to the emitter electrode. The pulse treatment may result in the pointed collector or emitter electrode being welded to the semi-conductor, or located in a small crater. The collector characteristics may be determined for various emitter currents by replacing the constant voltage source 20 by a constant current source. The position of the collector and emitter electrodes may be adjusted after the pulse treatment. N- or P-type germanium may be used as the semi-conductor material. The arrangement provides mechanical stability and facilitates the use of transistors in trigger circuits. Reference is made to U.S.A. Specification 2,497,770, and to other literature.
Patent GB-441607-A (GB)
Title: Improvements in or relating to portable tools
IPC: A01B1/22
Filed: 1935-09-25
Abstract: 441,607. Entrenching-tool handles. MEYER, J. J. C., 39, Rue Van HammÛe, Brussels. Sept. 25, 1935, No. 26547. Convention date, Sept. 26, 1934. [Class 61 (i)] An entrenching - tool handle has an enlargement a to receive the central opening b of the tool when used as a pick and is provided with a socket c open at the lower end to receive the pick point for using the device as a shovel, the socket being formed with ribs g providing an elastic seating for the ridges f on the pick point.
Patent GB-190117-A (GB)
Title: Improvements in or relating to apparatus for purifying gases
IPC: B01D47/06
Filed: 1922-10-03
Abstract: 190,117. Koppers Co., (Assignees of Bird, E. H.). Dec. 8, 1921, [Convention date]. Gases, absorbing; materials and compositions for purifying; p u r i f i e r waste, revivifying. - The invention relates to apparatus especially suitable for practising a gas purification process described in Specification 170,572 in which gases containing impurities, particularly hydrogen sulphide and hydrocyanic acid, are treated with ,impurity absorbing liquid, such as a solution of sodium carbonate, which is then directly revivified by aeration, stagnation being avoided. The apparatus comprises a single tower 13 having upper and lower chambers 15, 16 containing a filler 18 resting on grids 17, the former with gas inlet 19 and outlet 20 respectively at its lower and upper ends, and the latter and longer chamber having a blower 25 for effecting an upward draught of air therethrough, also conduits for transferring liquid from the bottom of the upper chamber to the top of the lower and from the bottom of the lower to - the top of the upper chamber. The purifying solution is supplied from a spray 21 and after absorbing impurities from the ascending gas flows to a sprayer 24 in the lower chamber in which it is aerated. The revivified liquid collecting in a sump 12 may be pumped back to the top of the upper chamber for re-use. In a modification, the position of the absorbing and aerating chambers is reversed.
Patent GB-1179370-A (GB)
Title: Isomerization Catalyst and process
Inventor: BENESI HANS ARPAD
IPC: C07C5/27
Filed: 1968-06-05
Abstract: 1,179,370. Isomerisation catalysts. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 5 June, 1968 [7 June, 1967], No. 26738/68. Addition to 1,151,653. Heading B1E. [Also in Divisions Cl and C5] An isomerisation catalyst is made by treating a crystalline mordenite sequentially with (a) acid at 93-149‹C. (b) acid at 10-38‹C. and (c) an ammonium compound and exchanging ions of a Group VIII metal into the so treated mordenite. The acid may be organic or inorganic of H 3 PO 4 , H 2 SO 4 , HmO 3  or HCl. The ammonium compound may be hydroxide, chloride, sulphate, phosphate or nitrate. In examples Pd<SP>++</SP> and Pt<SP>++</SP> are ion exchanged onto mordenite.
Patent GB-191177-A (GB)
Title: Improvements in valve adjustment devices
IPC: F01L1/20
Filed: 1921-10-11
Abstract: 191,177. Amos, A. J., Villiers, W. F., and Cording, C. E. Oct. 11, 1921. Cam gears. - An adjusting-device for engine valve-gear comprises a wheel 5 mounted in a valveoperating member, such as a lever 2, and having keyed engagement with an adjusting-screw 13, the periphery of the wheel having teeth engaging a spring-pressed detent 10 which gives an audible indication of the amount of adjustment. In a modification, a valve lifter or plunger is provided at one end with the adjusting-screw and with a recess to receive the wheel 5, the teeth of which are formed on one face thereof, instead of on the periphery.
Patent GB-783737-A (GB)
Title: Process for the production of titanium dichloride and zirconium dichloride
IPC: C01G23/02
Filed: 1955-09-21
Abstract: Titanium or zirconium dichlorides free from metallic titanium or zirconium is prepared by reacting a higher chloride of the metal with a sodium dispersion having particle sizes of 5-10 m  at 95-120 DEG C. (in the case of a titanium chloride) or 130-160 DEG  C. (in the case of a zirchloride) or 130-160 DEG  C. (in the case of a zirconium chloride).  The amount of tri- or tetrachloride necessary for the formation of dichloride may be introduced slowly with stirring as a solution or powder into a sodium dispersion (produced, e.g. by dispersing sodium with a hhig speed intensive stirrer in toluene, commercial benzine, paraffin oil or hard paraffin), whilst maintaining a suitable temperature by external cooling. Alternatively the sodium dispersion may be run into a solution of titanium tetrachloride or a suspension of any of the other chlorides in an inert diluent or both reactants may be simultaneously introduced into a diluent kept at reaction temperature.  The product consists of a deep black dispersion of a dichloride which may be either filtered and washed with petroleum ether to remove the dispersion medium (but not sodium chloride) or used as such as a polymerization catalyst.  Examples are given.  The Specification also mentions as prior knowledge the production of said dichlorides by thermal decomposition, reduction of tetrachlorides with the metal or sodium amalgam, and the production of titanium trichloride (and some metallic titanium) by reacting the tetrachloride with a suspension of potassium in toluene or xylene, possibly at high temperature under pressure.
Patent GB-797375-A (GB)
Title: Rotary valves
IPC: F16K5/04
Filed: 1955-09-23
Abstract: 797,375. Valves. HALE FIRE PUMP CO. Sept. 23, 1955 [Dec. 13, 1954], No. 27158/55. Class 135. In a valve having a part spherical valve element 14, Fig. 2, rotatably mounted on an integral trunnion 15 and stem 16 passing through the casing 10 and its cover 17 respectively, the casing is formed with a counterbore 40 housing a resilient sealing ring 41 and with clearance an axially movable two-part seat member 36 fitted with a resilient seating ring 38 engageable with the valve element. Regardless as to whether a port 12 or a port 13 is the valve inlet, pressure fluid enters the counterbore 40 to distort the ring 41 to form an effective seal when the valve is closed. In one instance, pressure fluid enters the counterbore through the clearance between the bore and the seat member to seal the space around the tail 38c, Fig. 8, of the seat member and in the other instance pressure fluid enters the space around the tail to seal the clearance. In each case the projected area of the rear end of the seat member 36 exposed to fluid pressure is greater than the frontal area thereof so exposed so that the seat member and its ring 38 are always urged by fluid pressure against the valve element. The valve is operated by a rod 21 which passes through the stem 16 and a split sleeve 24. To lock the valve element in any desired position the rod is rotated about its own axis whence screw threads on the rod and in the sleeve clamp the sleeve against the stem. A large diameter opening 11 in the casing permits easy access for servicing the valve parts without removal of the valve from the pipe-line.
Patent GB-1298786-A (GB)
Title: Improvements in or relating to reinforced polymer compositions
IPC: C03C25/36
Filed: 1971-04-19
Abstract: 1298786 Reinforced propylene polymer compositions SUMITOMO CHEMICAL CO Ltd 19 April 1971 [16 April 1970 17 April 1970] 27162/71 Heading C3P  Reinforced polymer compositions comprise (i) polypropylene or a propylene-ethylene copolymer, (ii) from 5 to 60% by weight of the total composition of an adhesive/glass fibre mixture, at least part of the surfaces of the constituent fibres of glass being coated with an adhesive comprising an epoxy resin which constitutes 0À1 to 5% by weight of the glass fibre in the said adhesive/glass fibre mixture and (iii) 0À5 to 10% by weight of the total composition of a modified homopolymer or ethylene copolymer of propylene, modified by 2 to 40% by weight of the polymer of 3,6-endomethylene-#<SP>4</SP>-tetrahydrophthalic acid anhydride. The adhesive may comprise a vinyl acetate-epoxy resin mixture (1 : 1 by weight). The compositions may also contain a stabilizer for the propylene homo- or co-polymer, pigments and fillers, and the examples describe comparative examples where the epoxy resin is replaced by vinyl acetate resin and ethylene-methyl, acrylate copolymer.
Patent GB-1063090-A (GB)
Title: Improvements in or relating to thermostatic fluid flow valves
IPC: G05D23/12
Filed: 1964-07-01
Abstract: 1,063,090. Valves. MARKARYDS METALLARMATUR A.B. July 1, 1964 [July 9, 1963; Dec. 10, 1963; Dec. 18, 1963], No. 27194/64. Heading F2V. [Also in Division G1] In a thermally actuated valve, the thermostat is supported by the valve body 10 through an insulating sleeve 20, and comprises an expansible liquid medium contained in a chamber 24 defined by a rotatable knob 23 and a diaphragm 25, the effective size of the chamber being adjustable by rotating the knob to move it axially relative to a fixed abutment 28 thereby adjusting the temperature at which the valve closes. The diaphragm acts via a piston 30 and rod 31, which passes through a silicone fat-filled bore in the insulator 20, on the valve spindle 15 which passes through a member 17 which can be adjusted to define the maximum open position of the closure member 14. The end wall of the knob is adapted to yield to relieve pressure rises which may occur in the chamber after the valve is closed, and to achieve this it is biased in the manner of a cup spring under the control of a screwed member 38. Rotation of the knob is limited by means of a pin 36 which coacts with one or more pins 37 provided in a ring of blind holes in an adjustable index plate 34. In the alternative embodiment of Fig. 4 (not shown), the fixed abutment member (43) is adapted to yield under exceptionally high pressures in the chamber, and the diaphragm has a cylindrical portion within which is mounted a spring (44), the latter being provided to prevent radial forces within the chamber from causing frictional contact between the diaphragm and the rod (31). In the further embodiment of Fig. 5 (not shown), a spring (44<SP>1</SP>) is provided to prevent frictional contact between the tubular portion of the diaphragm and the fixed abutment member (43<SP>1</SP>).
Patent GB-448978-A (GB)
Title: Improvements in and relating to thermally operated overload switches
IPC: H01H37/76
Filed: 1935-10-02
Abstract: 448,978. Thermal switches; mercury and other conducting - liquid switches. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Oct. 2, 1935, No. 27200. Convention date, Oct. 2, 1934. [Class 38 (v)] When current flowing between two conductors 11, 12 becomes excessive, the heating of the conductor 12 causes the melting of a fusible link 35, allowing an arm 32 to fall downwards about its pivot 34, thereby releasing a valve 27 so that mercury or other conducting liquid 17 flows away through the hole 26 so as no longer to form a bridging connection between the conductors. The conductors 11, 12 terminate in enlarged end portions 15, 16 which form with an insulating collar 18 a chamber for the mercury. The mercury and the members 32, 27 and the spring 30 fall into a container 44. In a modification, Fig. 5, in addition to the fusible member 53 which releases the arm 51 and valve 50 as in the previous construction, there is provided a fusible rod 56 surrounded by a bushing 55 which holds the other end of the arm 51. Breaking of the circuit can then be effected at will by passing an auxiliary current through the rod 56.
Patent GB-1542514-A (GB)
Title: 1-(benzazolylalkyl)piperidine derivatives
IPC: A61K31/44
Filed: 1976-06-30
Abstract: 1-(Benzazolylalkyl)piperidine derivatives of formula I <IMAGE>  and their salts are prepared by subjecting an amine of formula <IMAGE> to N-alkylation to introduce the corresponding substituted alkyl radical. In the compounds of formula I, the substituents have the meanings given in Patent Claim 1. These compounds and their salts have a spasmolytic action and they are in particular used in agents to prevent vomiting.
Patent GB-209474-A (GB)
Title: Improvements in means of and apparatus for utilising the kinetic energy of rivers, tidal currents and other like moving bodies of water
IPC: F03B17/06
Filed: 1922-10-09
Abstract: 209,474. Coleman, C. J. Oct. 9, 1922. Driving-arrangements.-The rotor g of a watercurrent motor encloses the driven dynamo, the field magrets q being secured to the interior of the rotor, and the armature v being rotated by gearing x, s, r. The current is led by brushes 1 and slip-rings 2 to insulated conductors 5, enclosed in a screen 4 of stream-line cross-section, and thence to brushes 3 and slip-rings 7 on the fixed pillar a.
Patent GB-949931-A (GB)
Title: Improvements in or relating to tube and plate assemblies
Inventor: HILL KENNETH MARSH
IPC: B23K9/028
Filed: 1959-08-11
Abstract: 949,931. Welding by fusion. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Aug. 4, 1960 [Aug. 11, 1959], No. 27500/59. Heading B3R. [Also in Division F2] In a welded joint between a tube 1 and a plate 2, e.g. for a heat exchanger, the plate 2 is formed with an aperture 11 of larger diameter than the tube 1 with a peripheral flange 5, and a coupling 3 has a tubular part 6 butt-welded to the tube and an end flange 7 with a skirt 8 butt-welded to the flange 5 on the plate 2. The weld 9 between the coupling 3 and the tube 1 is made first and tested, e.g., by X-rays, prior to the making and testing of the weld 10 between the coupling 3 and the flange 5. The other end of the tube 1 may be welded by a similar joint to another plate.
Patent GB-787573-A (GB)
Title: Improvements in or relating to semi-conductor devices
Inventor: TRAINOR ALBERT
IPC: H01L21/203
Filed: 1953-10-07
Abstract: 787,573. Semi-conductor devices. MULLARD RADIO VALVE CO., Ltd. Jan. 4, 1955 [Oct. 7, 1953], No. 27540/53. Class 37. A PN junction for a diode or transistor is produced by evaporating P-type semi-conductor material on to a N-type single crystal of the same basic material, to form a polycrystalline layer. The semi-conductor material may consist of germanium or silicon. A tantalum, molybdenum or pure carbon boat may be used to hold P-type germanium for evaporation, or a silica boat to hold P-type silicon. The surface of the N-type single crystal upon which deposition takes place, may be heated to 200- 400 ‹ C. by means of a winding on a copper slug. The process may be applied to both sides of the crystal to provide a PNP transistor. Specification 692,250 is referred to. Reference has been directed by the Comptroller to Specification 757,805.