baber/WOPTO huggingface dataset:
Patent GB-987691-A (GB)
Title: Improvements in or relating to apparatus for measuring or indicating surface roughness
Inventor: RAWSTRON GEORGE ORMEROD
IPC: G01B5/28
Filed: 1960-04-20
Abstract: 987,691. Measuring electrically. RANK PRECISION INDUSTRIES Ltd, [trading as TAYLOR TAYLOR & HOBSON]. April 18, 1961 [April 20, 1960], No. 13830/60. Heading G1N. In apparatus for measuring the roughness of a surface of revolution of small radius (e.g. a ball or roller for a bearing) the body under test is seated in a hole in a detachable plate on a supporting frame, and is caused to rotate by moving a friction pad over the surface, a stylus engaging with the moving surface of the body through the hole in the plate and operating a transducer to electrically control a measuring instrument. The apparatus may be adapted for attachment to existing apparatus for measuring the surface roughness of larger bodies, or may be complete in itsself. A machine of known construction includes a traversing bar A1, to which is normally connected a pick-up head, which is driven from gear-box A in an approximately straight line at constant speed. The apparatus is adapted for use with small bodies by attaching an arm F, carrying a friction bad F2 (e.g. of relatively hard rubber) to traversing bar A1, and clamping a box E to base C. The box contains a pick-up head G pivoted at G1 and carrying a stylus arm H1 which co-operates with a transducer in the head. Stylus arm H1 carries a stylus H which protrudes through a hole K1 in a detachable part K of top-plate E2, the arm being spring-biased upwards. Pick-up head G is arranged for coarse adjustment by screw J1 and fine adjustment by micrometer screw J4, and the transducer is connected through an amplifier to an integrating meter or a pen recorder. One of a number of interchangeable plates K is clamped to top-plate E2 and the body under test is placed in a seating K1, which may be an open-ended conical surface, the burnished edge of a circular hole or a three point support for a ball, or an open V-slot, a pair of burnished parallel edges, or a four point support for a roller. The gear box A contains switches for connecting the transducer to the meter when the traversing bar has reached a desired constant speed, for disconnecting it at the end of a traverse, and for resetting the meter befor each new traverse. A self-contained unit is also described (Fig. 8) which includes a camshaft N bearing a heart-shaped cam N2 driving friction pad F2 through arms M1, M2, and a cam N1 which controls switches Q1, Q2 for the meter circuit and switch Q for energizing a motor to drive the cam-shaft. Operation of lever O starts an automatic cycle in which the cam-shaft drive motor is switched on, the meter is connected to the transducer, the meter is disconnected after a recording cycle, the meter is cleared by shortcircuiting it, and the motor is switched off.
Patent GB-204084-A (GB)
Title: Improvements in telephone instrument circuits
IPC: H04M1/00
Filed: 1922-05-17
Abstract: 204,084. British L. M. Ericsson Manufacturing Co., Ltd., and Crowe, W. M. May 17, 1922. Automatic, semi-automatic, and manual exchange systems.-To prevent an accidental clearing signal or release of the automatic switches when the microphone is in a horizontal position, the rise of the switch-hook at the substation is arranged to connect one or more coils of the ringer across the microphone, or a port of the speaking circuit including the microphone, or to short-circuit the condenser in series with the ringer. Fig. 2 shows an automatic substation in which the switch-hook S' on rising connects the bell B across the microphone M and receiver R. Specification 10602/06 is referred to.
Patent GB-956129-A (GB)
Title: Improvements in and relating to tube bundles for heat exchangers, vapour generatorsand the like
IPC: F22B37/20
Filed: 1963-04-08
Abstract: 956,129. Steam generators; tubular heat exchangers. FOSTER WHEELER Ltd. April 8, 1963 [April 6, 1962], No. 13983/63. Headings F4A and F4S. In a heat-exchanger, vapour generator or the like comprising a tube bundle formed of nested layers of U-tubes, vibration of the bent ends of the tubes is prevented by providing spacing rods between and in contact with the tube layers at their apices in a plane at right-angles to the plane of the tubes, the rods being tied at their ends to a strap which encompasses the bent ends of the tubes. In the form shown, a vertical boiler has a cylindrical shell 10 containing a tube bundle 16 of nested U-tubes 14 the ends of which are secured in a tube plate 12. The tube bundle is surrounded by a cylindrical baffle 18 forming an outer annular downcomer 20. As shown in Fig. 2, the tubes in one layer are staggered with respect to those in the adjacent layers and project into the spaces between tubes in the adjacent layers. The vertical limbs of the tubes are stiffened by plates 24, through which they pass, the plates being supported by rods 26 and being disposed to create a tortuous fluid path around the tubes. Sinuous spacing rods 28 are disposed between the tube layers to prevent movement of the tubes relative to each other whilst forming seatings for the tubes. These rods are tied at their ends to a strap 30 which encompasses the tube bundle. The strap 30 preferably consists of two pairs of bars 32, each pair being on opposite sides of the bundle and each bar 32 of a pair being on either side of the ends of the spacing rods 28. The upper and lower ends of these pairs of bars are joined by other bars 34. The strap may be suspended from any convenient point effectively to prevent any movement or can be mounted to allow for vertical expansion, the latter being ensured here by welding a plate 36 to the upper bar 34 and engaging the side edges of the plate in grooved members 38 fixed to the downcomer baffle 18.
Patent GB-1425476-A (GB)
Title: Photopolymerisable compositions
IPC: G03F7/027
Filed: 1973-03-22
Abstract: 1425476 Substituted bis-(benzylidene) ketones EASTMAN KODAK CO 22 March 1973 [24 March 1972] 13986/73 Heading C2C [Also in Divisions C3 and G2] Examples illustrate the preparation of photopolymerizable bis-methacrylic compounds containing a bisphenol moiety in which the two phenol groups are joined by an aliphatic or cycloaliphatic linkage containing a ketone group. Preparations described are of (a) 2,5- bis - (4 - methacryloyloxyethoxycarbonyloxy - 3- methoxybenzylidene) cyclopentanone by reacting 2,5 - bis - (4 - hydroxy - 3 - methoxybenzylidene) cyclopentanone with 2-chloroformyloxyethyl methacrylate and similar products wherein the bisphenol reactant is replaced by 1,3-bis (4- hydroxy - 3 - methoxybenzylidene) acetene, 1,5 - bis - (2 - methoxy - 4 - hydroxyphenyl)- pentan - 3 - one or 2,5 - bis - (4 hydroxy - 3- methoxybenzyl) cyclopentanone; (b) 1,5-bis-[4- (2 - hydroxy - 3 - methacryloyloxy in propoxy)- 3 - methoxyphenyl] 1-4 pentadien 3 one by reacting 1,3 - bis - (4 -bydroxy - 3 methoxybenzylidene) acetone with glycidyl methacrylate; (c) the compound obtained by esterifying the free hydroxyl groups in the product from (b) with methacryloyl chloride; (d) 1,3-bis - [4 - (4- methacryloyloxybenzoyloxy) - 3 - methoxybenzylidene] acetone by reacting 1,3-bis-(4-hydroxy-3- methoxybenzylidene) acetone with 4-methacryloyloxybenzoic acid chloride; (e) 1,3-bis- [4 - (4 - methacrylamidobenzoyloxy) - 3 - methoxybenzylidene) acetone by reacting 1,3-bis-(4-hydroxy - 3 - methoxybenzylidene) acetone with 4-methacrylamidobenzoic acid chloride; and (f) 1,3 - bis - {4 - [4 - (2 - methacryloyloxyethoxyformamido) benzoyloxy] - 3 - methoxybenzylidene}- acetone by reacting 1,3-bis-(4-hydroxy-3-methoxybyenzylidene) acetone with 4 - (2 - methacryloyloxyethoxyformamido) benzoic acid chloride. The acid chloride used in (d) is prepared by reacting 4-hydroxybenzoic acid with methacryloyl chloride to form 4-carboxyphenyl methacrylate and then converting the acid group therein to acid chloride by reaction with thionyl chloride. The acid chloride used in (e) is prepared similarly as for the acid chloride in (d) except that 4-aminobenzoic acid is used instead of 4- hydroxybenzoic acid in the first-stage reaction. The acid chloride used in (f) is prepared similarly as for the acid chloride in (e) except that 2-chloroformyloxyethyl methacrylate is used instead of methacryloyl chloride in the firststage reaction.
Patent GB-452329-A (GB)
Title: Improvements in and relating to gateways in roller tracks
IPC: B65G13/00
Filed: 1935-05-14
Abstract: 452,329. Roller - way conveyers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House. Aldwych, London, and CANNON, A. G. W., The Grange, Church Street, Blackheath, near Birmingham. May 14, 1935, No. 14143. [Class 78 (i)] The movement of the hinged section 2 of the track to the position shown in dotted lines is facilitated by the provision of a movable weight 6 and guides 4, 5. The guides 4, which are curved, are attached to the section 2 and move between the fixed guides 5. Two rollers 7 provided at each end of the weight run on the guides and travel to the position shown in dotted lines as the section is raised.
Patent GB-731880-A (GB)
Title: Improvements in or relating to sodium superoxide production
IPC: C01B15/043
Filed: 1953-05-21
Abstract: Sodium superoxide, NaO2, is prepared by reacting sodium, sodium monoxide, or sodium peroxide with oxygen under a pressure of at least 1500 p.s.i. and a temperature of at least 200 DEG  C.  The reaction between sodium peroxide and oxygen may be catalysed by the presence of MoO3, V2O2, CdO, Fe2O3, Cr2O3, Ni2O3, MgO, Co2O3, CuO and TiO2.
Patent GB-623890-A (GB)
Title: Improvements in primary batteries of the layer type
IPC: H01M4/06
Filed: 1947-05-30
Abstract: 623,890. Batteries. BURNDEPT, Ltd., and LEWIS, R. W. May 30, 1947, No. 14425. [Class 53] A cell of the layer type consists of a zinc pan 1 coated with carbon 2 on its outside and having an absorbent layer 3 for electrolyte on its inside. A cake of depolarizer rests on the absorbent layer and in order to provide space for any liquid set free during the working of the cell, the depolarizer cake is made with some free space such as a number of perforations or as shown in Fig. 1 by making it in two parts 4, 5 with a gap 6 between them. The layer 3 is provided with perforations 7 to enable liquid formed on the surface of the electrode 1 to find its way into the gap 6.
Patent GB-959696-A (GB)
Title: Improvements in or relating to pulse amplitude discriminators
Inventor: KANDIAH KATHIRKAMATHAMBY
IPC: H03K9/02
Filed: 1961-04-21
Abstract: 959,696. Transistor pulse amplitude discriminating and monostable circuits. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. April 16, 1962 [April 21, 1961], No. 14437/61. Heading H3T. A current pulse amplitude discriminator comprises three transistors J3, J4, J5 interconnected as shown, to form a monostable circuit, the circuit being shunted by a non- linear resistance such as a diode MR1, normally passing sufficient current to maintain the circuit in a stable state with all three transistors conductive. An input current pulse of sufficiently large amplitude will reduce the resistance of MR1 sufficiently to trigger the circuit. In the stable state, the emitter-coupled pair J3, J5 are conductive, the collector voltage of J3 being stabilized by a D.C. amplifier J1, J2. The coupling transistor J4 is normally bottomed, short-circuiting capacitor C3. Any current input pulse, the amplitude of which exceeds a threshold value, reduces the current in MR1 hence its resistance is increased sufficiently to increase the gain of the circuit above unity. Transistor J3 rapidly becomes non- conductive, reducing the collector voltage of J4, the resulting fall in base voltage being limited by MR4. The collector voltage of J3 continues to fall to a value limited by MR2, rendering J4 non-conductive. C3 now charges via the base circuit of J5, increasing the emitter potential of J5 and J3 until J3 again passes current. The circuit then returns to its stable state, the discharge of C3 being limited by R7 so as to minimize charge storage in J4. The rise in base potential of J4 is limited by MR3. The threshold current may be adjusted by variation of R1. A negative output pulse is available at the collector of J3. In Fig. 2 (not shown) diode MR1 is replaced by a transistor.
Patent GB-499744-A (GB)
Title: Improvements in or relating to photo-electric multiple cells
IPC: H01J31/26
Filed: 1937-05-25
Abstract: 499,744. Television; cathode ray tubes ; electron multipliers. RADIOAKT.-GES. D. S. LOEWE. May 25, 1937, No. 14501. Convention date, May 30, 1936. [Classes 39 (i) and 40 (iii)] A transmitting device for television comprises a photo-electric grid 1 and mosaic screen 2 face to face, the image to be transmitted being projected on to the grid 1 through the screen 2 and the screen 2 being scanned by a light beam passing through the net 2; the backs of the grid and screen are non-sensitive and non- emissive. The elements of the screen 3 are charged by electrons emitted from the grid 1 under the influence of the image and the image signals produced by the discharge of the screen elements by the scanning beam. The image signals may be voltage impulses derived from a net arranged on the other side of an insulating sheet 3 on which the screen is mounted. The effect may be enhanced by a positively biassed net arranged between the grid I and the screen 2 ; the impulses may also be derived from such a net. Alternatively, the image signals may be current impulses derived from an anode on which the electrons emitted from the screen 2 impinge. Fig. 7 shows such an arrangement operated by high-frequency excitation. The anode 13 consists of a conducting coating on the surface of the container and is coupled with the amplifier 10 through a transformer 9a. An accelerating electrode consisting of a net 15 is also provided. The net 8 on the side of the insulating sheet 3 opposite to the mosaic screen 2 is connected to a highfrequency generator 27 of a frequency at least twice as high as the highest video frequency. The tube is screened by a net 28 and any further disturbance produced by the highfrequency may be neutralized by known means. Fig. 6 shows an arrangement in which the electrons emitted by the screen 2 are concentrated on to the first electrode 24 of an electron multiplier by means of cylindrical electrodes 16, 17 and annular electrodes 18, 19. The electron stream is deflected as shown by electrodes 21, 22, formed as quadrants of cylinders, the electrode 21 being made of wire net to permit of the passage of the scanning beam. The potential of the electrode 19 is midway between those of the electrodes 21, 22. Dimensions are given. The Specification as open to inspection under Sect. 91 includes a description of the apparatus described in Specification 499,860. This subject-matter does not appear in the Specification as accepted.
Patent GB-620841-A (GB)
Title: Price-changing device for prepayment meters
IPC: G07F15/08
Filed: 1946-05-14
Abstract: 620,841. Prepayment mechanism for meters. ENGLISH ELECTRIC CO., Ltd., and WHITEHEAD, R. K. May 14, 1946, No. 14548. [Class 27] Price-changing mechanism.-In a pricechange gear interposed between the meter and quantity mechanisms of a prepayment meter, rotation of a control spindle successively locks the quantity mechanism, dipsengages the change gear, changes the gear ratio, and then finally re-engages the change gear at a new ratio and unlocks the quantity mechanism. A stepped gear cone 2 is in permanent driving connection with the meter mechanism through a gear 1, and any one of its steps can be engaged by a pinion 3 slidable on a splined shaft 3a through which the drive is taken to the quantity mechanism by gears 4, 5 and a shaft 12. Pinion 3 and its shaft 3a are mounted in a cradle 11a which can be rocked about shaft 12 for disengaging and engaging the pinion with the gear cone 2. The control spindle 6, which has a screwdriver slot 6a accessible through an opening in the casing, has notched discs 7 and 10 secured to it and is adapted to drive a screwed spindle 17 through a crank pin 14 and a lost-motion slot 15 in a disc 16 on the spindle 17. When the spindle 6 is turned, first the disc 7 rocks a lever 8 to bring a pawl 8a therein into locking engagement with a wheel 9 on the quantity mechanism shaft 12. The disc 10, whose notch 10a is wider than that in the disc 7, then lifts an extension arm 11 of the cradle 11a to disengage the pinion 3 from the gear cone 2. The lost-motion between the crank pin 14 and slot 15 now being taken up, continued rotation of the spindle 6 turns the screwed spindle 17 and this, through a nut 17a and carriage 13, traverses the pinion lengthwise of the gear cone. One revolution of the control spindle 6 traverses the pinion through one step of the cone and, at the completion of the revolution, the parts are restored and correctly located by springs 18, 19 engaging respectively a notched disc 19a on the spindle 6 and the disc 16 which is also notched. One or more revolutions of the control spindle are made in the appropriate direction according to the new ratio required. Modifications are referred to in which the pinion 3 is traversed through several steps per revolution and in which several revolutions are required for each step.
Patent GB-813259-A (GB)
Title: Improvements in vehicle suspensions
Inventor: MOULTON ALEXANDER ERIC
IPC: B60G11/30
Filed: 1954-05-18
Abstract: 813,259. Spring suspensions, adjusting body height. MOULTON DEVELOPMENTS Ltd. Sept. 1, 1955 [May 18, 1954, July 21, 1955], Nos. 14557/54 and 21137/55. Classes 108(2). and 108(3) Relates to a vehicle suspension having provision for interaction between front and rear wheel suspensions including a single conduit means hydraulically interconnecting the front and rear wheel suspensions at each side of the vehicle in such manner that deflection of the front suspension when traversing a surface inequality effect a corresponding alteration of the rear suspension on the same side and vice versa so as to maintain the attitude of the vehicle substantially constant in the pitch mode thereby reducing pitching. According to the invention, the single conduit means includes a rubber hydraulic accumulator between the front and rear suspensions having an elastic wall in which increase in hydraulic pressure resulting from deflection of the front and or rear wheel suspension produces resilient deformation of the elastic wall, thereby providing springing in bounce and or roll. The term "bounce" refers to vehicle springing movements of the vehicle when it is on an even keel. In the arrangement according to Fig. 1 in which front and rear road wheels are carried by links 4 and 7 respectively pivoted to the vehicle frame 1, each link is sprung by a resilient hollow sphere 11 or 21 of rubber and containing a hydraulic medium 14. The front and rear spheres are interconnected by a metallic pipe line 24 which also communicates with a pump 26 and reservoir 27 and with a rubber hydraulic accumulator 30. The accumulator comprises a chamber 40 formed between two frusto-conical rings 41 and 42 in which are disposed metal ferrules 45 and 46 and rubber rings 43 and 44 bonded to the rings 41 and 42 and to the ferrules 45 and 46 respectively. A valve 28 controls the connection of line 24 to the pump 26 or to the accumulator 30. In another arrangement, Fig. 2 (not shown) the accumulator is constituted by resilient piping interconnecting the spheres 11 and 21 and replacing the pipe line 24 of Fig. 1. The resilient piping is in two sections connected together by a metal junction pipe carrying the valve 28. In the arrangement according to Fig. 3 in which resilient pipe sections 54 and 55 are also used, the spheres 11 and 21 are replaced by rubber springs 61 and 62 each of which is combined with a telescopic hydraulic damper 60. Each spring comprises rubber elements 65 and 66 bonded to ferrules 64 and 67 and to a sleeve 68 to define a chamber for the hydraulic medium. The cylinder of the damper, which is welded to the ferrule 64, communicates with the spring chamber, a piston rod 70 of the damper being attached to the ferrule 67. In a modification, Fig. 4 (not shown) the damper fluid is isolated by seals from that of the spring chambers. Specification 763,432 is referred to.
Patent GB-1488722-A (GB)
Title: Oxidation of wool and like keratin fibres
IPC: D06M13/364
Filed: 1975-04-09
Abstract: 1488722 Oxidising and shrinkproofing wool SOUTH AFRICAN WOOL BOARD 9 April 1975 [9 April 1974] 14571/75 Heading DIP  A liquor for oxidising wool or other keratinous fibres in order to shrink-proof them comprises a halogenated isocyanuric acid or salt thereof as halogen donor, a wetting agent and a hydrogen ion donor comprising a mixture of a mineral acid and an organic acid selected from propionic, acetic and halogenoacetic acids, the pH being 0.5 to 3.5. The specified halogen donors are dichloroisocyanuric acid and its K and Na salts. Its concentration e.g. 2.5% by weight, may be such as to provide 0.5 to 5% active chlorine. The halogenoacetic acid may be mono, di or tri chloro-, bromo- or fluoroacetic acid. The mineral acid is HCl, H 2 SO 4 , HNO 3  or H 3 PO 4 . The treating solution preferably contains 0.5% by weight of a nonionic wetting agent. The keratinous material may be in the form of yarns or tops or a woven or knitted fabric. It may be impregnated by passing through an aqueous solution contained in a trough formed by a juxtaposed pair of rollers for 0.5 to 2 seconds. The material then passes through the nip formed by the rollers to leave a 100% wet pick up, is stored for 3 minutes and neutralised with NaHCO 3 / NaHSO 3  solution. Alternatively the material is sprayed with the solution then padded through the rollers.
Patent GB-1293211-A (GB)
Title: Pyrimidine compounds and production thereof
IPC: C07D473/00
Filed: 1970-03-25
Abstract: 1293211 Pyrimidine derivatives FUJISAWA PHARMACEUTICAL CO Ltd 25 March 1970 [25 March 1969 (4) 7 July 1969 15 July 1969 29 July 1969 13 Aug 1969 29 Sept 1969 25 Oct 1969 5 Feb 1970 2 March 1970] 14581/70 Heading C2C Novel compounds I in which R 1  is H, N0 2 , nitroso, aryldiazo, amino or acylamino; R 2  is H, halo, OH, SH, 1-8C alkoxy, aryl (1-8C alkyloxy), 1-8C alkylthio, NH 2 , NHOH, mono- or di-(1-8C alkyl) amino, aryl-(1-8C alkyl) amino, or 1-8C alkoxyamino; R 3  is H, halo, OH, SH, NH 2 , 1-8C alkyl, aryl, 1-8C alkoxy, aryl (1-8C alkoxy), or 1-8C alkylthio; R 4  is 2-8C alkylene substituted by one or more OH (no OH on C adjacent to N) which may be protected by acyl, 1-8C alkyl, aryl (1-8C alkyl) or a pair may be protected by 1-8C alkylidene or aryl (1-8C alkylidine) and R 5  is OH, 1-8C alkoxy, NH 2  or mono- or di-(1-8C alkyl) amino are prepared by reaction of compounds II where X is halo with H 2 N-R 4 COR 5  followed by conventional modifications where desired, e.g. reduction of NO 2  to NH 2 , and/or deprotection or protection of the protected or unprotected OH groups, respectively. Pharmaceutical compositions comprise a compound I together with a suitable carrier or diluent and are used as hypocholesterolemic agents for enteral or parenteral administration.
Patent GB-192011-A (GB)
Title: Improvements relating to incubators
IPC: A01K41/06
Filed: 1922-05-24
Abstract: 192,011. West, T. H. May 24, 1922. Hatching - a p p l i - ances. - To enable eggs while being incubated to be turned readily they are contained in a cellular drawer or receptacle having sides between which strings, cottoncovered or other wires or their equivalents extend, cardboard or other abutment pieces d sliding on the wires, and with them forming the cells for the eggs. The eggs are inserted between the wires and the abutment pieces moved to positions close to the eggs as shown thus maintaining the eggs in position and permitting the drawer full of eggs to be withdrawn and inverted.