baber/WOPTO huggingface dataset:
Patent GB-605786-A (GB)
Title: Improvements in domestic wringers
IPC: D06F45/24
Filed: 1945-06-01
Abstract: 605,786. Mangles and wringers. HOWELLS, H. J. June 1, 1945, No. 13805. [Classes 42(ii) and 138(ii)] A domestic wringer comprises a frame with uprights 1, 2, bridged by a horizontal member 3, the entire frame being made of reinforced concrete and each upright being provided with a metal stirrup 5, moulded therein, which serves to accommodate the stub axles 7a, 7b, of rollers 6a, .6b, which are also made of reinforced concrete. The stub axles 7a of the lower roller bear in the semi-circular portions 5b of the stirrups, whilst the upper roller 6b is urged into contact with the lower roller 6a by springs 8 acting on floating bearings 9. The upper portion of the stirrups may be partly or totally enclosed by a plate 12. The rollers are geared together by wheels 15 and rotated by a handle 14.
Patent GB-743731-A (GB)
Title: Adhesive butyl rubber compositions
Inventor: SEAR DEREK WILLIAM
IPC: C09J123/22
Filed: 1953-05-19
Abstract: An adhesive butyl rubber composition is prepared by incorporating a cured crumb of a butyl rubber composition with a minor proportion of an uncured vulcanisable butyl rubber composition at a temperature below that required for curing. Butadiene, isoprene and isobutylene are the specified butyl rubber components.  The cured crumb may be prepared by curing a vulcanizable butyl rubber composition with simultaneous mechanical working, it may be reduced in size, preferably such that at least 50 per cent passes through a 30 mesh per inch British Standard sieve and it may be incorporated in the uncured composition by milling and then sheeting.  The proportion of cured crumb is preferably 65-80 per cent of the total butyl rubber. The usual vulcanizing ingredients may be present in the crumb.  The composition may be used for bonding butyl rubber to natural rubber and for the preparation of inner linings for tubeless tyres.
Patent GB-1435037-A (GB)
Title: Piperaz
IPC: A61K31/55
Filed: 1974-03-29
Abstract: 1435037 Piperazinyl-dibenz[b, f]thiepins F HOFFMANN-LA ROCHE & CO AG 29 March 1974 [30 March 1973 16 Jan 1974] 14019/74 Heading C2C Novel compound (I) and salts thereof in which n is 1 to 3, R is H, or when n is 2 or 3, R is also OH or C 1-18  alkanoyloxy, one of the pair of symbols R 1  and R 2  or R 3  and R 4  is H and the other is F, Cl, Me, MeO, MeS, Me 2 NSO 2  or CF 3 , provided that a least one represents F and the dotted line represents an optional bond are prepared by (1) reacting a compound II in which Y is a leaving atom or group (preferably Cl) with an R-(CH2) n - substituted piperazine to form a 10,11-dihydro derivative; (2) reacting a compound IX with an R-(CH 2 ) n - substituted piperazine; (3) reacting a compound V with ethylene oxide, propylene oxide or a compound Y-(CH 2 ) n -R to form a 10,11-dihydro derivative; (4) for compounds I in which R is C 1-18  alkanoyloxy, acylating the corresponding compound in which R is hydroxy or (5) for 10, 11-dihydro derivatives hydrogenating the corresponding Compound I containing the 10,11 double bond. Compounds IX (R 1  or R 2  = F; R 3  or R 4  = SMe) are prepared by reacting a fluoro substituted 2-iodobenzoic acid with a thiomethyl substituted thiophenol in the presence of copper converting the benzoic acid formed to a phenylacetic acid by the standard homologation procedure and cyclizing the acid under acidic conditions. Compounds IX are reduced to the alcohol which is chlorinated to form compounds II (Y=Cl). Compounds I are CNS depressants and have neuroleptic properties and form with a carrier a pharmaceutical composition which may be administered orally or parenterally. Reference has been directed by the Comptroller to Specification 1,369,525.
Patent GB-1259956-A (GB)
Title: Reflux crystallisation
Inventor: BETTS WELSLEY DONALD
IPC: C07C7/14
Filed: 1968-03-22
Abstract: 1,259,956. Reflux crystallization. COAL TAR RESEARCH CORP. 24 March, 1969 [22 March, 1968], No. 14101/68. Heading B1G. An annular reflux crystallization column 1, in which a low mp lean product is withdrawn from the top and a high mp pure product is withdrawn from the bottom, has a close fitting rotary helical blade 3 with a smooth polished surface. The blade may be coated with chromium, rhodium, resin or glass and may be integral with or separate from the central portion 2 of the column. A portion of the pure product may be withdrawn as product, the remainder being recycled through an external heater 9. As shown, material, withdrawn at the top of the column, is partially withdrawn as lean product through a line 5 while the remainder is admixed with feed through a line 18, is subjected to pulsation by a unit 23, is passed through a scraper crystallizer 12-17 and is recycled at an intermediate point 21. In another form (Fig. 2), lean product is withdrawn from the top of the column while further material is separately withdrawn and passed through a stirred cooling vessel where it is mixed with feed material and recycled at an intermediate point into the central portion of the column.
Patent GB-762942-A (GB)
Title: Improvements in the manufacture of sulphuric acid
IPC: C01B17/86
Filed: 1952-06-05
Abstract: <PICT:0762942/III/1> An apparatus for the manufacture of sulphuric acid by the intensive tower process comprises a series of towers having communicating passages, common to acid and gas, arranged at the lower part of the towers, at least one of said towers containing an inner reaction tower to which gas coming from a previous tower passes upwardly into the surrounding outer tower, means being provided for spraying nitrous sulphuric acid at the top of the inner reaction tower or towers.  As shown in Fig. 5 two towers 18, 18a have inner towers 12, 12a provided with fans 15 which draw the gases upwards in inner tower 12 and force them downwards in inner tower 12a.  Sulphur dioxide-containing gases enter at 11 and pass through the acid-gas channel to the base of tower 12 against a stream of nitrosyl sulphuric acid entering at 22 and thence to the outer tower 18 from which they are in part re-cycled through the aperture 17 to the inner tower and in part passed through the acid-gas passage connecting the two outer towers into the outer tower 18a, passing downwardly through inner tower 12a and outwards through a vent 20. Acid is withdrawn from the base of the first tower 18 and recycled through pump 24 to the top of the inner tower 12a.  Similarly acid is withdrawn from the base of tower 18a and recycled through pump 24a to the top of the inner tower 12 whereby the first inner tower 12 acts as a Glover tower the external part 18 of the first tower and the external part of the second tower act as production towers and the inner tower 12a of the second double tower acts as a GayLussac tower. Three or more towers employing a similar system may be used.  The inner tower may be provided with chequer work or baffles and may or may not contain a grid at the bottom thereof.  The inner towers may be approximately the same height as the outer towers as shown in Fig. 5 or alternatively tall outer towers with squat inner towers may be used
Patent GB-721432-A (GB)
Title: Improvements in, or relating to, valves
Inventor: SMITH HERBERT ALWYN
IPC: F01P7/16
Filed: 1950-06-08
Abstract: 721,432. Valves. SPIRAX-SARCO, Ltd. Sept. 10, 1951 [June 8, 1950], No. 14258/50. Class 135. A valve, suitable for the cooling system of an internal-combustion engine, having two ported conical cores carried on opposite ends of a spindle and rotatable respectively in two ported conical sleeves, has at least one radial projection on the spindle co-operating with at least one cam so that on rotation one core moves towards and the other moves away from its respective sleeve. Hot water from the engine enters a casing 1 at 2 and acts on a thermal element 3 which, through a crank, rotates a spindle 16 carrying ported cores or closure members 13, 14 mating with ported sleeves 7, 8, so that the proportion of water passing at 5 back to the engine and at 6 to a cooler is varied according to the hot water temperature. As the spindle rotates, studs 21 move between cams 20 on discs 18 fixed in a housing 9 so that as one conical valve closes, its parts are brought into close proximity to minimize leakage while the other valve, which is fully open, has its parts moved apart axially. The cores have flanges 17 located between the discs 18 and fixed sleeve flanges 11, whereby the longitudinal pressure component on the core is balanced, inlet pressure seeping into the chamber between the flange 17 and the core flange 11, and outlet pressure entering the chamber between disc 18 and flange 17 via a drilling in each core end wall 15. The rim of the flange 17 mates with the housing 9 when its corresponding valve closes. The cores are pressed on to the spindle by springs 32 so as to avoid overloading due to excessive movement of the thermal element. Specification 692,357 is referred to.
Patent GB-584860-A (GB)
Title: Improvements in and relating to pistons and piston rings
IPC: F16J1/08
Filed: 1944-07-26
Abstract: 584,860. Pistons. SPECIALLOID, Ltd., RUSSELL, C. F., and WILLS, H. W. July 26,1944, No. 14293. [Class 122 (i)] Recesses 4 above the ring grooves 3 of a light metal piston are fitted with tin, lead, or other bearing or antifriction metal. The recesses may be in the form of grooves or blind holes and may also be provided between or below the ring grooves. Where an insert, e.g., of austenitic iron or steel, is provided in the piston head, filled recesses 4 may be formed therein. Specification 584,520 is referred to.
Patent GB-1236178-A (GB)
Title: A shoe tree
Inventor: TANK WOLDEMAR HEINRICH
IPC: A43D3/14
Filed: 1970-03-25
Abstract: 1,236,178. Shoe tree. W. H. TANK and T. TANK. 25 March, 1970 [1 April, 1969], No. 14463/70. Heading A3B. A shoe tree consists of a lower member 1 which contacts the sole of the shoe, an upper member 2 which contacts the vamp, a supporting arm 3 which is pivoted at its rear end to the lower member 1 and at its front end to the upper member 2, and means for adjusting the angle between the supporting arm 3 and lower member 1. The arm 3 is pivoted to the lower member 1 by projections 10 which engage recesses formed in flanges 12 and is pivoted to the upper member by pins 7 which engage apertures formed in flanges 6. The adjusting means consists of cam discs 4 which are pivotally mounted on the arm 3 at 13 and which are moved by an operating lever 5.
Patent GB-777838-A (GB)
Title: Improvements in or relating to an actuator mechanism
IPC: F16K31/385
Filed: 1954-05-18
Abstract: 777,838. Fluid-pressure servomotors; fluid-actuated valves. GARRETT CORPORATION. May 18, 1954 [June 1, 1953], No.14543/54. Class 135. A valve having a controlled operating rate and suitable for supplying a gradually increasing air pressure to an air turbine comprises a butterfly valve member 11 urged towards closure by a spring 15a and opened by pressure from the upstream side of the valve admitted by a solenoidactuated valve 20 to the lower face of a piston 15. As the main valve opens, outlet pressure becomes effective, through a conduit 22, on the upper side of a flexible diaphragm 24 to open a valve 28 and thereby reduce the pressure applied to the piston. Pressure air is admitted slowly by an adjustable restriction 25 to the lower side of the diaphragm whereby the pressures on either side of the diaphragm tend to become equalized, allowing the main valve to move gradually to its fully open position. In a modification, a piston valve replaces the valve 28 and outlet pressure, in addition to acting on the diaphragm, acts also on the upper end of the piston valve so as to regulate the main valve to maintain a constant delivery pressure.
Patent GB-562579-A (GB)
Title: Improvements in or relating to burettes
IPC: B01L3/02
Filed: 1942-10-16
Abstract: 562,579. Bur-. ettes. LANGLEY, T. W., and TECALEMIT, Ltd. Oct. 16, 1942, No. 14552. [Class 1 (i)] A burette comprises a cylindrical vessel 1 open at the upper end and connected to a delivery tube 5 with downwardly curved nozzle 7, and a displacement member 9 held by a clamp 10 so that it may be lowered into the burette to an extent indicated on a scale 15. Specification 565,888 is referred to.
Patent GB-143903-A (GB)
Title: Improvements in centrifugal machines
IPC: B04B9/12
Filed: 1920-05-28
Abstract: 143,903. Hepworth Co., S. S., and Mackintosh, E. M., (Assignees of Mackintosh, E. D.). Oct. 30, 1918, [Convention date]. Suspending. - The suspended shaft of a centrifugal machine is driven from a motor shaft above it through a universal joint consisting of a link m hinged at n to a head o on the driving-shaft p and engaging forks l secured to the driven shaft a. A fixed bearing-casing i contains a tilting plate g supporting a ball bearing f by which the shaft is suspended. The plate g tilts about a centre g<1>, and the shaft a swings about a point c<1>. The casing i limits the extent of swing allowed. A flange k carrying the forks l closely surrounds the casing i without touching. it, to exclude dust from the bearing.
Patent GB-217899-A (GB)
Title: Improvements in asynchronous induction motors
IPC: H02K17/36
Filed: 1924-06-16
Abstract: 217,899. Martinetto, V. June 20, 1923, [Convention date]. Alternating-current motors. - An induction motor of variable torque, speed and power factor is made with a ratio of primary to secondary turns different at one part of the machine from that at another part, by making it in two self-contained inductively independent parts 3, 5 and 4, 6, Fig. 2, the secondary windings 5, 6 being mounted on a common shaft and the ratio of turns in the windings 3, 5 being different from that in 4, 6, the primary windings and the secondary windings respectively being connected in series with means for relatively displacing their axes. The torque and speed may be controlled by modifying the number of primary or secondary turns, by displacing the primary or secondary magnetic axis, by varying the supply voltage, or by modifying the current strength in one of the inducing windings independently of that in the other. The magnetic axes are shifted by altering the points of connection on the windings 4, 6 of the righthand machine which, in the example shown, has the lower ratio of primary to secondary turns and acts as the motor element supplied through the left-hand machine acting as a transformer. Instead of shifting the axes, the number of ampere-turns in the winding 4 may be changed directly. In an alternative arrangement, the winding 4 is placed on salient poles and the primary 3 is brought out to taps for shifting its magnetic axis, in which case the left-hand element acts both as a motor and a transformer supplying the right-hand motor element. Fig. 4 shows a form in which the winding 4 is on salient poles and is supplied through a variable transformer 8, by means of which the current in the winding 4 may be varied for torque and speed control. The application of the above-named methods of control to polyphase motors is illustrated in the Specification. Change of the magnetic axes is accompanied by alteration of the power factor, but it is preferred to use such change only for speed control and to employ auxiliary windings for independently controlling the power factor. Fig. 7 shows a method of controlling the power factor by modifying the field due to a polyphase primary winding 4 by means of an additional winding 9 shunted across the supply 10. In place of the winding 9, ohmic or inductive resistances may be directly shunted across the winding 4, or, alternatively, the winding 9 may be supplied with current of phase differing from that of the winding 4. When the reactance of the winding 6 is insufficient to limit the starting current sufficiently or to produce the requisite displacement of the secondary current, a variable inductance, either within or outside the armatures, may be included between the secondary windings. Specifications 17930/05, 182,768, and 210,427, are referred to.
Patent GB-375499-A (GB)
Title: Improvements relating to fastenings for motor vehicle bonnets and other similar purposes
IPC: E05B65/19
Filed: 1931-05-16
Abstract: 375,499. Motor car bonnet fastenings. WESTWOOD, S. C., Somersby, Petersfield Road, Hall Green, Birmingham, and WESTWOOD, H. B., Grimes Hill, near Birming- ham. May 16, 1931, No. 14553. [Class 44.] A motor car bonnet fastener comprises a cam-operated spring- pressed hook catch with a sloping face k which engages a corresponding face l on the hasp. The catch c is formed from a flat bar and is enclosed in a sheet metal guide a. The cam is controlled by a blade spring i.
Patent GB-528879-A (GB)
Title: Improvements in and relating to cabinets for refrigerators and the like
IPC: F25D21/04
Filed: 1939-05-16
Abstract: 528,879. Refrigerators. BRITISH THOMSONHOUSTON CO., Ltd. May 16, 1939, No. 14612. Convention date, May 17, 1938. [Class 29] To prevent condensation from atmospheric moisture upon the outer surface of portions of the cabinet, e.g. the mullion 13 between the doors 11, 12 a sealed container 26 partially filled with an evaporating-condensing medium is arranged to transfer heat from the refrigerating machine 16 to the surface. The mullion comprises inner and outer metal walls 20, 21 connected by insulating strips 22 and filled with insulating material, and the upper portion of the sealed tube 26 is arranged longitudinally within the mullion while the lower portion projects laterally into the machine compartment and is secured by a bracket 27 to the wall of the compressor &c. casing 16.
Patent GB-1223593-A (GB)
Title: A system of electronic ignition with incorporated advance
IPC: F02P5/155
Filed: 1968-03-27
Abstract: 1,223,593. Ignition systems. FABRICA ESPANOLA MAGNETOS S.A. March 27, 1968 [Oct.21, 1967], No.14741/68. Heading F1B. An ignition system for an internal-combustion engine comprises a saturable core converter 1 producing a rectified and filtered output, an ignition unit 2 comprising an ignition coil 24, a resonant circuit receiving the output of the converter to produce a charging current for the ignition coil, a triggered electronic switch 2 to control passage of the charging current for the ignition coil and a pulse generator 3 inductively controlled by the magnetic flux produced by a make and break device (not shown) of a magnetic circuit of an electromagnet to provide a triggering pulse to the switch each time a spark is required. The magnetic make and break device is adapted to be driven by the engine and is such that as the engine speed varies the time taken by the magnetic make and break device to make the magnetic circuit and establish therein a flux such as to cause the pulse generator to produce a triggering varies so that as the engine speed increases the ignition is automatically advanced and as the engine speed decreases the ignition is automatically retarded. The condenser 23 is connected to discharge into the ignition coil 24 using a silicon controlled diode 21 as the switch.
Patent GB-986321-A (GB)
Title: A method of and apparatus for ultrasonic welding
IPC: B23K20/10
Filed: 1963-04-16
Abstract: 986,321. Welding by pressure. UNITED STATES ATOMIC ENERGY COMMISSION. April 16, 1963 [July 18, 1962], No. 14814/63. Heading B3R. In ultrasonic welding in which a welding head applies force and ultrasonic energy to the work, the welding is stopped when the amplitude of vibration decreases to a predetermined level corresponding to the increased acoustic impedance of the work when a weld is achieved. A power source 14 supplies a transducer 16 coupled by a horn 18 to a welding head 10 having a welding tip 12 applied to the work 20 by a force in the direction of the arrow. A pick-up 22 connected through an amplifier 24 to a control device 26 effects actuation of a switch 28 to disconnect the source 14 when the reduction of vibration amplitude indicates that the weld is complete. Alternatively the switch 28 may be actuated manually in accordance with an indicator, e.g., an oscilloscope responsive to signals from the pick-up 22. In a modification the decrease in current drawn from the source 14 when the reduced vibration amplitude is reflected back to the electrical side of the transducer 16 is monitored and used as an indication of a good weld.
Patent GB-677732-A (GB)
Title: Improvements relating to looms for weaving tufted pile fabrics
IPC: D03D27/06
Filed: 1949-06-03
Abstract: 677,732. Tufted pile fabric looms; stopmotions. PLATT BROS. & CO., Ltd., and BASSINDALE, I. B. June 1, 1950 [June 3, 1949], No. 14896/49. Class 142(i) An electric stop motion is operated when the let-off motion fails sufficiently to function to permit undue motion of the chainwarp shaft or the stuffer-warp shaft. A terminal 32 carried upon an arm 31 engages a contact plate 26 when the rocker shaft 12 supporting the chain-warp shaft brackets 11 is rotated and operates the stop-motion. A second terminal 34 also engages the contact plate 26 when the rocker shaft 20 supporting the stuffer-warp shaft bracket 19 is rotated.
Patent GB-1393673-A (GB)
Title: Electrodeless discharge devices
IPC: H01J65/04
Filed: 1971-05-12
Abstract: 1393673 Gas discharge lamps EMI Ltd 11 May 1972 [12 May 1971] 14903/71 Heading H1D An electrodeless discharge lamp is provided externally of the discharge space 2 with a conductive coating 7 of graphite or Nesa (Registered Trade Mark) which acts as a starting electrode. The coating 7 is capacitively coupled to a similar coating 4 on the interior of part 3 of the envelope which is connected to a terminal 5. An insulating knob 8 is provided.
Patent GB-1003963-A (GB)
Title: Improvements in stator for use in alternating current induction motors
IPC: H02K1/16
Filed: 1963-04-16
Abstract: 1,003,963. Induction motors. GENERAL ELECTRIC CO. April 16, 1963 [May 2, 1962], No. 14925/63. Heading H2A. In a split-phase motor having distributed main and auxiliary windings, the cross-sections of the teeth and yoke are greatest in the regions having the highest flux produced by the main winding under running conditions. In the four-pole machine shown, the main windings (shown in heavy lines) comprise concentric coils 22, 23, 24 producing main-pole flux on axes 25. The flux is rendered sinusoidal by grading the number of turns per coil in such a way that the outermost coils have most turns, the slots at the edges of the pole-band being larger for this purpose. The greatest pole-flux passes through the teeth near the centre of the pole, and these teeth are thicker accordingly, the tooth sections being graded over the pole-width. The core flux is least near the centre of each pole and this enables the core thickness to be reduced (at D, E, F) by flats 58 and fixing slots 12.
Patent GB-1301094-A (GB)
Title: Servo system
Inventor: HORII MASARV
IPC: G11B15/18
Filed: 1969-03-21
Abstract: 1301094 Control of A.C. motors RCA CORPORATION 13 March 1970 [21 March 1969] 14946/69 Heading H2J [Also in Division G3] A servo system, for controlling the velocity and phase of a rotatable member, includes a device for sensing the power supplied to drive the member. When the power falls below a given level, but a frequency and phase error signal remains, the device causes reversal of the sense of the power supplied in order to provide positive deceleration of the member. In the embodiment shown, a magnetic headwheel 8 is driven by a polyphase synchronous motor 14, in a record-reproduce system. A tone-wheel 16 generates pulses representing the rotation of the wheel 8, and these pulses are compared in a detector 22 with a video reference signal 24 to produce an error signal which in turn controls the power supplied to the motor 14. The reference signal 24 also provides an input to a generator 38 which produces a triangular waveform for modulation by the error signal in a circuit 46 which produces two related square pulse trains for each phase of the 3-phase input. A sensor 104 detects the width of these pulses, representing the power supplied to the motor 14, and, if the power falls below a preset level, actuates a switch control 100 to rearrange the signals supplied to the motor in such a way as to tend to reverse its direction of motion. The sensor 104 will subsequently again detect a low power condition and return the drive supply circuit to its normal operating arrangement.