baber/WOPTO huggingface dataset:
Patent GB-694607-A (GB)
Title: Improvements relating to the production of distilled water
IPC: C02F1/04
Filed: 1951-06-26
Abstract: <PICT:0694607/III/1> Apparatus for producing distilled water from crude steam comprises an air-cooled jacket 1 terminating in a substantially conical compartment 2 at its upper end, the jacket having an inlet 3 for crude steam at its upper end and a water discharge pipe with a drain-cook 5 at its lower end, a condenser-chamber 6 mounted within the jacket with external connections 7 sealed through the wall thereof for passing cooling water through the chamber, a tube 8 extending axially through the condenser - chamber 6 with its upper end 9 opening to the conical compartment 2 adjacent the top thereof and with its lower end 10 passing sealingly through the bottom of the jacket and a coiled tube 11 surrounding the tube 8 within the condenser-chamber 6 and sealed through both ends thereof with its lower end 12 opening into the bottom of the jacket 1 and its top end 13 continued sealingly through the upper portion of the jacket and extending alongside the conical compartment 2 to provide an outlet 14 for distilled water.  The apparatus may be of glass or metal.  Crude steam condenses in jacket 1 which becomes filled with condensed steam to level H. Thereafter incoming steam causes ebullition in the conical compartment 2 and uncondensed steam containing volatile impurities passes away through the tube 8.  Any solid particles are deposited on the sides of the conical compartment 2, pass to the bottom of the jacket 1 and may be removed via the drum-cock 5.  Pure condensed steam passes up through the coil 11 and is discharged at 14.
Patent GB-977554-A (GB)
Title: Photographic colour development and colour couplers therefor
IPC: G03C7/32
Filed: 1961-04-27
Abstract: The invention comprises the following colour couplers:-  (a) a -thiocyano-acyloacetanilides;  (b) N - substituted - a  - thiocyano -acyloacetamides;  (c) 4-thiocyano - 5 - pyrazolones unsubstituted in the 2-position but having substituents in the 1- and 3-positions; (d) 4-thiocyano-5-pyrazolones having a phenyl or substituted phenyl group in the 1-position and an alkyl, amino, substituted amino or acylamino group in the 3-position;  (e) 4-thiocyanophenols having an alkyl, amino or substituted amino group in the 2-position; and  (f) 4-thiocyanonaphthols having an alkyl, amino or substituted amino group in the 2-position. The above colour couplers are prepared by reacting corresponding compounds in which thiocyano is replaced by hydrogen with thiocyanogen as it is formed or in solution in an organic solvent.  Specified colour couplers are a -benzoyl-a -thiocyano-acetanilide, a -benzoyl-a -thiocyanoacet-3 5-dicarboxyanilide, 1-(2, 4, 6-trichlorophenyl)-3-n-pentadecyl-4-thiocyano - 5-pyrazolone, 1-(2, 4, 6-trichlorophenyl)-3-[3-(2, 4-di-tert-amyl-phenoxyacetamido) benzamido]-4-thiocyano-5-pyrazolone, 1-(para-tert.-butylphenoxy-phenyl)-3-a -(para-tert.-butylphenoxy) - propionamido-4-thiocyano-5-pyrazolone and 1-hydroxy-4-thiocyano-N-[d -(2, 4-di-tert.-amylphenoxy)-n-butyl]-2-naphthamide, the detailed preparation of which is described.  a -Benzoylacet-3, 5-dicarbomethoxyanilide is prepared from ethyl benzoylacetate, sodium acetate and dimethyl-5-aminoisophthalate, and may be hydrolysed with alcoholic KOH to give a -benzoylacet-3,5-dicarboxyanilide. Specifications 524,554, 524,555, 531,246, 531,312, 541,589, 545,448, 547,064, 553,507, 558,885, 562,205, 595,314, 599,919, 649,660, 680,474, 680,488, 733,119, 736,922, 758,165, 800,108, 843,497, 865,721, 868,937, and 942,865 are referred to.
Patent GB-755363-A (GB)
Title: Improvements in or relating to the production of diarylethanes
IPC: C07C2/70
Filed: 1954-05-24
Abstract: 1,1-Diarylethanes are obtained by reacting acetylene with a mono- and/or di-alkyl substituted benzene in the presence of a sulphuric acid-mercuric compound catalyst the amount of acetylene being from 15 to 45 per cent of the stoichiometric amount of acetylene required to react with all of the substituted benzene. The reaction may be carried out at a temperature from - 20 DEG  to 70 DEG  C.  The process may be carried out batchwise, in which case the substituted benzene is cooled to about 5 DEG  C. below the reaction temperature and then sulphuric acid and the powdered mercuric salt, such as the sulphate, stirred in, the measured amount of acetylene is then added and after standing the diarylethane recovered therefrom; or continuously, by adding the ingredients into the reactor, and then bleeding from the reactor an amount of product equal to the amount of reactant continuously added.  The substituted benzene may be toluene, o-, p- or m-xylene or ethylbenzene.
Patent GB-716704-A (GB)
Title: Improvements relating to driving arrangements for textile ring spinning and like frames
Inventor: HOLT FREDERICK BRERETON
IPC: D01H1/20
Filed: 1950-06-19
Abstract: 716,704. Driving arrangements for textile spinning &c. machines. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. May 21, 1951 [June 19, 1950], No. 15314/50. Class 120(2) [Also in Group XXXVII] A ring frame driven by at least two alternatively energizable electric motors permanently coupled to the frame to drive it at different speeds has the motors coupled to a common driven member so that transmission of load torque between each driving member and the common driven member is effected without transmission of load torque by the other driving member. The motors may have different operating speeds and may be of a multispeed kind, or different sizes of pulleys transmitting the drive may be employed. Separate rope, belt or like drives, preferably interlaced with those of the alternative motors, or a common flexible member may be used. As applied to. a spinning frame, two motors 1, 2 are each coupled to a shaft 3 by belts 4, 5. The diameter of pulleys 6, 7 and the speeds of the motors 1, 2 are selected to provide two different operating speeds. When starting the frame, the lower speed motor 1 is switched on and as the cops build up motor 1 is switched off and motor 2 switched on. The motors are again switched over to finish the cop. Automatic switch-over arrangements may be provided as described in Specification 716,705.
Patent GB-593868-A (GB)
Title: Improvements in mechanical order telegraph and like multiple-indication systems
IPC: G08B9/08
Filed: 1945-06-18
Abstract: 593,868. Bowden mechanism. BROUSE, W. H. D. June 18, 1945, No. 15442. [Class 80(iii)] [Also in Group XXXVIII] In an order-telegraph system in which a transmitter 1 and receiver 2 are operatively connected by a cable 17, the operating movement is applied at the midpoint of the cable to ensure accurate registration of the receiver and transmitter. The cable 17, used to rotate " courseindicating " dials, runs in a conduit 28 between the two telegraphs 1, 2. When under compression, the cable crowds the outer sides of the conduit bends and, when under tension, the inner sides and would thus provide different effective lengths under the two conditions. The operating handle 40, however, via gearing and cable 38 applies movement to the cable 17 at its mid-point and thus whichever way cable 38 moves the effective operating length of cable 17 remains constant. The effect of back-lash in the transmitter and receiver gears is also nullified.
Patent GB-477832-A (GB)
Title: Improvements in electric motor control systems
IPC: B60L15/34
Filed: 1936-06-03
Abstract: 477,832. Master control of motors. GRAY, W. T., and METROPOLITANVICKERS ELECTRICAL CO., Ltd. June 3, 1936, No. 15536. [Class 38 (iii)] In a multiple-unit control system, rectifiers are associated with a train wire or wires to prevent the feed back of control current between train wires at the auxiliary contacts governing the movement of the individual motor control equipments. In the respective motor operative positions I, II of the master controller MC, lines 5a and 5a, 6a respectively are energized in the various individual motor control equipments A, B, .... over lines 5b, 6b and the respective train wires 7, whereby a coil 2 is energized to actuate a servo device (not shown) to step the motor switching means 1, e.g., camoperated contactors, drum switches, face plate starters, &c., which step interlock contacts 4 to follow up the master controller. To prevent stalling, the contact 4 in each equipment A, B .... operative with respect to the contact fingers 5, 6 must overlap so that for example, should the master controller be moved to position I, then, during the follow up movement of the interlock contacts 4 should the equipment A arrive at its position I before B, then as B moves to its position I the overlap of the contacts 4 thereof will temporarily energize the corresponding line 6a and train wire 7 over line 5a and result in a further incorrect stepping of equipment A. To prevent this a rectifier 9 is inserted in line 6a. The master controller MC and the various switching means I may have any desired number of motor operative positions, rectifiers being provided for some or all of the auxiliary contacts 6 associated with the various motor-operative positions. Specification 451,514 is referred to.
Patent GB-548938-A (GB)
Title: Appliance for relieving ropes, cables and cords from the effects of sudden changes in tensile loading
IPC: B64F1/14
Filed: 1940-10-23
Abstract: 548,938. Resilient shackles. METALASTIK, Ltd., and GOLDSCHMIDT, M. Oct. 23, 1940, No. 15572. [Class 108 (iii)] Two members having means for preventing their complete separation under excessive load are resiliently connected by tension elements consisting of a number of superposed rubber loops of graduated thickness and strength. In the construction shown in Fig. 2, each of the members consists of a pair of links 18, 19 with outer connecting bolts 20, 21 and inner cross pins 16,17. A slotted link 22 prevents complete separation of the elements. The rubber loops 12 are arranged around sleeves 14, 15 and are enclosed in overlapping slotted casings 25, 26 clamped to the bolts 16, 17. In a modification the casings do not overlap. The gap between them when extended discloses a coloured band indicating the amount of the load. In a further modification, the casings and links'are combined and enclose only one compound loop spring. Slotted links for limiting extensions may be arranged outside the casing. Rubber springs bent round at one end only may be used, the free ends being bonded to eyelet plates 61, 66, Fig. 11, secured to a pin through which tension is applied. Specification 548,964 is referred to.
Patent GB-328822-A (GB)
Title: Improvements in and relating to sound disc records, suitable for synchronous reproduction with kinematographs
Filed: 1929-05-18
Abstract: 328,822. Hough, T. May 18, 1929. Soundgrooves and traces; feed motions; sound recording or reproducing apparatus associated with kinematographs. - Between the different recorded passages on a sound disc record, the pitch of the sound groove is increased, as at 4, Fig. 1, so that one section of the recording is rendered visibly distinguishable from another. If the record is to be used in association with a kinematograph film, the latter may be marked at the places corresponding to the parts 4 of the record disc. The marks on the film may be coloured, perforated, or notched, but preferably the marks are made photographically. In addition, the corresponding marks on the film and disc may be lettered or numbered. In recording apparatus suitable for producing the indications 4 of increased pitch on the record disc, the lead screw 5, Fig. 2, is connected to a rack bar 10 and is slidable upon but splined to a driven spindle 7. When a mark 4 is to be made on the record, a handle 13 carrying a pinion 12 gearing with the rack 10 is moved angularly so that a projection 15 on the handle 13 is moved from a notch 16 in a member 17 into an adjacent notch, this action causing the screw 5 to be moved axially along the spindle 7 and produce the spiral of increased pitch 4 on the record disc. The movement of the handle 13 may at the same time control an electric circuit so as to mark a kinematograph film.
Patent GB-912081-A (GB)
Title: Improvements in or relating to the drying of materials which may be sticky and/or combustible
IPC: F26B17/10
Filed: 1960-05-03
Abstract: 912,081. Drying apparatus. PREPARATION INDUSTRIELLE DES COMBUSTIBLES. May 3, 1960 [Nov. 19, 1959], No. 15592/60. Class 34 (2). In a process for drying materials which may be sticky and/or combustible, the materials are predried in a rotary drum contact drier and subsequently fed to a drier wherein the materials are dried by contact with hot gases. In a process for drying materials, the materials are pre-dried in a rotary drum 4, which may be in the form of a disintegrating mill, from which they are delivered to a drying duct 8 up which the materials are carried by a heated air current from a fan 6. The products are fed through a hopper 2 and furnace 1 into the drum where they may be disintegrated by beams (not shown) hingedly mounted on the walls and are trickled into the duct 8 by paddle-shaped elements (not shown) for conveyance to a cyclone separator 9 and dust extractor 10.
Patent GB-1057708-A (GB)
Title: Improvements in servo control systems
IPC: B23Q35/128
Filed: 1964-04-15
Abstract: 1,057,708. Control of two D.C. motors. CANADIAN WESTINGHOUSE CO. Ltd. April 15, 1964 [April 19, 1963 (3)], No. 15600/64. Heading H2J. [Also in Divisions B3 and G3] A steering motor and a travel motor of a template follower are controlled by the outputs of a pair of photo-cells which are electromagnetically oscillated across a line on a template. Steering of the template follower.-The output of a steering photo-cell, Fig. 6 (not shown) is applied to a transistor amplifier and the natural frequency component filtered out in # el T network the fundamental frequency signal being applied to a push-pull pair of transistors having an output which is applied to a steering motor Figs. 1-3 (not shown), to rotate it in a direction and at a speed dependent on the phase and amplitude of the fundemental frequency signal. Velocity feedback is applied from a tachogenerator. Velocity control of the template follower.-The signal from a velocity controlling photo-cell, Fig. 7 (not shown), is amplified, rectified, filtered and applied as bias to a transistor which is rendered conductive by the photo-cell signal to actuate a relay through a transistor. The desired velocity signal is derived from a manually set potentiometer and is applied to a sine-cosine potentiometer of circuit 47 of Fig. 5B. During cornering the signal from the photo-cell falls and the velocity signal is limited by a Zener diode. On completion of a corner a capacitor prohibits the immediate resumption of conduction by the biased transistor so that rapid speed change is prevented. Positioning control.-The apparatus in dotted area 52, Fig. 5B, is arranged to produce timing pulses at supply frequency which are modified into ramp pulses by the charging of a capacitor 255 through a transistor 254 controlled by Zener diode 263. The outputs of area 52 are opposite phased pulses on lines 156, 182 and opposite phased ramp pulses on conductors 180, 157. The apparatus in area 47, Fig. 5B, derives X and Y co-ordinate signals on line 153, 274 from a sine-cosine potentiometer 145 supplied on line 356, 357 with a velocity dependent signal from velocity control system. Figs. 6, 7 (not shown). Fig. 5A shows apparatus for controlling the direction and velocity of an X co-ordinate motor 31. The arrangement is symmetrical and siliconcontrolled rectifiers 206, 209 are triggered by unijunction transistors 176, 201 responsive to transistors 173, 178. The ramp signal 157 is summated with the timing pulses 156 and velocity signal 153 through a tunnel diode in the base circuit of a transistor 165 connected through a transistor 170 and capacitor 170 to control the bias to the transistor 176. The summation of signals is such that the points in a cycle at which the silicon controlled rectifier 206 is triggered are dependent on the velocity signal 153, being earlier with an increase in signal level. Velocity feedback is derived from a tachogenerator and applied to the tunnel diodes 155, 158 through variable resistors 261, 262.
Patent GB-1164441-A (GB)
Title: Methods and apparatus for carrying out Reactions in the Presence of Particulate Materials
Inventor: DESHPANDE ARUN KESHAV
IPC: B01J8/38
Filed: 1965-04-13
Abstract: 1,164,441. Heat control of particulate reactants. ELECTRIC REDUCTION CO. OF CANADA, Ltd. 14 June, 1966 [13 April, 1965], No. 15630/65. Heading B1X. [Also in Division C1] Particulate reactants are preheated in a fluidised chamber (12), at least partly transferredto a reactor (20) within said chamber, and the products at least partly recycled to said chamber. As shown in Fig. the apparatus may be rotary and of generally cylindrical type, and comprises a gas tight envelope 10 having gas inlet 26, a perforate member 12 defining the fluidised chamber having an outlet 45, a separate reaction -vessel 20 having an inlet 40 for particulate reactants and an outlet 42 for gaseous products, means (scoops 31 and chute 35) to transfer particles from the reactor to the chamber and means (scoops 30 and chute 33) to transfer particles from the chamber to the reactor. A part of the solids may be discharged through limb 34, the proportion being controlled by damper 46. The end plates 24 and 14b are stationary, together with outlet 42 and end plate 25. The particulate material may be the same as one of the reactants or the product produced in the reactor (e.g. sodium sulphate or chloride may be charged to the reactor with phosphoric acid to form particulate sodium metaphosphate or polyphosphates) or may be inert, e.g. sand, upon which reaction products build up.
Patent GB-402455-A (GB)
Title: Improvements in steam dryer or grit and dust extractor from air or gases and the like
IPC: F22B37/32
Filed: 1932-06-02
Abstract: 402,455. Centrifugal gas - cleaners. MOYNAN, F. K. O., Bayton, Kidderminster, Worcestershire. June 2, 1932, Nos. 15652/32 and 14888/33. Addition to 341,532. [Class 23.] The gas-cleaner or steam-dryer described in the parent Specification is modified by arranging the discharge outlet 11, Fig. 1, for the clean gas at the bottom of the cleaner, while the entrance remains at the top. The entry is provided with spiral vanes D which meet at the centre and have recessed bases D'. The outlet tube 11 is of " vena contracta " form with the mouth flared outwards, and the plate E round the tube is provided with vanes E<2>. When used as a steam drver on a locomotive, the apparatus may be placed in the dome. The dry steam passes away through the pipe 11<b> and the separated water passes down the ribbed wall to the drain holes. In the modification shown in Fig. 5, the spiral vanes D are joined at the axis of the separator and the inlet is contracted to a smaller diameter than that of the vanes. In the further modification shown in Fig. 9 the separator is of rectangular form having tapering ribs A on the inner surfaces of the casing. An inner chamber is formed having inclined side walls 16a and a cover plate 17 which has deflector vanes D on opposite sides of the plate. The gas enters between the side plates and the deflector vanes D and finds its way to the inner chamber. The particles of dust or moisture are deposited on the ribbed walls and pass to the pipe 12a while the clean gas is withdrawn from the end of the inner chamber.
Patent GB-291449-A (GB)
Title: Improvements in marking devices for traffic control on roads and ways
IPC: E01F9/06
Filed: 1928-05-29
Abstract: 291,449. Metal Traffic Marker Corporation, (Assignees of Foster, R.). June 4, 1927, [Convention date]. Surface markings. - Studs adapted to be driven into a road or like surface to mark lines or signs for traffic guidance have a disc like head 1 with a tubular shank 6 furnished with bendable prongs 7 which are forced outwards to. anchor the stud in the road material when driving force is applied. The shank joins the head above the lower plane of the head, and the bore of the shank extends into the head, the spaces 8, 10 thus formed serving to receive the displaced road material. The convex head is covered by a brilliant marking cap 12 of non-corrosive material, the outer edge of which is crimped over the periphery of the head. Specification 275,930 is referred to.
Patent GB-321395-A (GB)
Title: Diaphragm especially for the reproduction of sound
IPC: H04R7/06
Filed: 1928-05-29
Abstract: 321,395. Goldschmidt, R. May 29, 1928. Diaphragms.-A diaphragm for sound reproduction is subjected to compression and bending stresses in order to increase the elasticity, by reducing the original vaulting of a dished diaphragm. As shown, pressure is applied to the dished diaphragm 1, Fig. 1, in the direction of the arrows to form the stressed diaphragm shown in Fig. 8. In modifications, Figs. 11 - - 14 (not shown) the original dishing of the diaphragm is reduced by clamping the periphery. The inherent stresses in the diaphragm are preserved by the provision of a bevel 9, Figs. 7 and 8, or by making the periphery sufficiently stiff, e.g. by providing corrugations. When the diaphragm is used in an electromagnetic or electrostatic telephone instrument, the characteristic of the permanent magnetic or electrostatic forces are assimilated to the characteristic curve of restoring force of the diaphragm to such a degree that the diaphragm operates near the point of flexure. The diaphragm may be mounted between rings of yielding material which may be carried in a channel-shaped extension of the instrument case.
Patent GB-110801-A (GB)
Title: Improvements in Appliances for Casting Metals.
Inventor: PRATT ARTHUR EDWIN
IPC: B22C9/06
Filed: 1916-11-03
Abstract: 110,801. Pratt, A. E., and Connolly, J. Nov. 3, 1916. Moulds; clamping moulds; casting-pits.-Half moulds are mounted on supports of various kinds in such a manner that they can be brought and held together or separated as desired by hand or mechanical or other power means. In the arrangement shown in Fig. 1, two half moulds 1 are fixed on a trolly 6 while the other half moulds 10 are movably supported and can be moved towards or away from their corresponding halves by toggle gear carried by a fixed centrally arranged support 75 and actuated by a hand wheel. Instead of being mounted on a trolly as shown, the fixed moulds and their supports may be secured to the wall of a casting-pot. The supports may be made large enough to contain a number of half-moulds.
Patent GB-1001873-A (GB)
Title: Improvements in and relating to bags
IPC: B65D30/24
Filed: 1961-08-25
Abstract: 1,001,873. Bags. B. SANDERS. Aug. 25, 1961, No. 15739/65. Divided out of 1,001,872. Heading B8K. The subject-matter of this Specification is contained in Specification 1,001,872 but the claims differ.