baber/WOPTO huggingface dataset:
Patent GB-1130263-A (GB)
Title: Method of preparing fluoroaromatic compounds
Inventor: NEFEDOV ALEG MATVEEVICH
IPC: C07C25/02
Filed: 1967-06-12
Abstract: 1,130,263. Fluoroaromatic compounds. INSTITUT ORGANICHESKOI KHIMM IM. N.D. ZELINSKGOGO AN USSR. 12 June, 1967 [11 June, 1966], No. 27043/67. Heading C2C. Fluoroaromatic compounds are prepared by a process comprising the pyrolysis of a mixture of a compound having conjugated double bonds and an aliphatic fluorine-containing polyhalide at a temperature in the range 300-800 C. The " compound having conjugated double bonds " is a conjugated diene or a compound having an aromatic nucleus substituted by a group having a carbon-carbon double bond conjugated with the aromatic nucleus and include compounds having fused ring substituents such as indene and substituted indenes. Preferred unsaturated starting materials are cyclic dienes, e.g. cyclopentadiene and its dimer, alkyl cyclopentadienes, e.g. methylcyclopentadiene, and their dimers; arylcyclopentadienes and their dimers; halocyclopentadienes; indene and alkyl- and aryl-substituted indenes; and acyclic 1,3-dienes, e.g. divinyl, isoprene and piperylene. The preferred fluorine containing compounds are those containing one or more fluorine atoms out of a total of 3 or more halogen atoms, e.g. CHF 2 Cl, CF 2 Cl 2 , CF 2 Br 2 , CHCl 2 F, CHF 3  and CF 3 I and tetrahaloethylenes containing at least 2 atoms of fluorine, e.g. tetrafluoroethylene, trifluorochloroethylene, and 1,1 -difluoro-2,2-dichloroethylene; and perfluorocycloalkanes. In the examples (a) cyclopentadiene is reacted with CHF 3 , CF 2 CI 2 , CF 2 ,Br 2 , CHF 2 Cl, C 2 F 4 , C 2 F 3 Cl, and perfluorocyclobutane to give in each case fluorobenzene; (b) CHF 2 Cl is reacted with (i) methylcyclopentadiene to give fluorotoluene, (ii) indene to give #-fluoronaphthalene, (iii) phenyl cyclopentadiene to give fluorobiphenyls, (iv) hexachlorocyclopentadiene to give pentachlorofluorobenzene, (v) divinyl to give difluorobenzene, and (vi) piperylene and isoprene to give difluorotoluenes, and (c) C 2 F 4  is reacted with divinyl to give difluorobenzenes.
Patent GB-500937-A (GB)
Title: Improved revolving-cylinder fluid pump or motor
IPC: F01B3/00
Filed: 1937-08-16
Abstract: 500,937. Revolving-cylinder pumps or compressors. YOXALL, J., and PROPELLO INVENTIONS, Ltd. Aug. 16, 1937, No. 27073 /38. Divided out of 500,299. [Classes 8 (i) and 102 (i)] [Also in Group XXIX] A fluid motor or pump comprises a rotor 17 mounted on an extension 15 of the casing and provided with pistons 29 pressed by springs 31 against a plate 81 bearing on a plate 42 carried by a bearing 82 in a housing 32 pivoted at 50 and loaded by a spring 51 which presses it against the abutment 53. As the pressure in the cylinders rises, the inclination of the housing 32 is reduced to reduce the stroke of the pistons 29. A dashpot may co-operate with the spring 51 to reduce flutter. The abutment 52 of the spring may be adjustable. The rotor 17 is driven from the shaft 16 through a coupling 19. In a modification, the ends of the pistons have hooks engaging short shafts carried by the plate 42.
Patent GB-1453006-A (GB)
Title: Support structures
IPC: F16L3/24
Filed: 1974-06-19
Abstract: 1453006 Brackets H HEER & CO 19 June 1974 [20 June 1973 28 June 1974] 27076/74 Heading A4B [Also in Division F2] In a supporting structure, e.g. a rack structure, consisting of vertical supports 1 provided with rows of rectangular apertures 5 for receiving hooks 6, e.g. a pair of hooks, on the inner end of each of a number of support arms 2, each hook 6 is pressed out from a sheet metal section forming the associated arm and is formed to provide at one side a portion 8 extending in the same direction as the main hook portion but which does not pass right through an aperture, the portion 8 thus engaging a vertical side of the aperture to take up lateral forces acting on the hook. This is accomplished by continuing the cut on one side of each hook beyond that at the other side and forming that side of the hook with a double bend 7, the portion of the hook above the double bend 7 thus being inclined laterally to the plane of the web portion 2a of the arm 2. Each arm 2 is of channel section having flanges 2b in addition to the web 2a. Preferably, as shown arms 2 extend from both sides of the upright supports 1 and are either of left and right hand kinds to engage apertures in the web 3 of the support 1 Fig. 1 or are all of the same hand in which case the support 1 has apertures in its flanges 4 Fig. 4. Alternatively, a support 10, of the cross-section shown in Fig. 6, may be provided with apertures in its web 13 with which the hooks of arms 2 of the same hand can be engaged from both the front and the rear of the support.
Patent GB-1088140-A (GB)
Title: Method and apparatus for cutting extruded metal on movable container type metal extruding press
IPC: B21C23/21
Filed: 1965-06-25
Abstract: 1,088,140. Extruding. KOBE STEEL Ltd. June 25, 1965 [June 29, 1964], No. 27139/65. Heading B3P. A metal extrusion press has a plurality of containers 3a, 3c, Fig. 2 mounted on a movable holder 1 so as to be brought successively into the extrusion axis c-c, and after extrusion, during the lateral movement of the container out of the extrusion axis, the extruded product 20 is also moved laterally and is severed from the discard by a cutter 16 at a position removed from the extrusion axis. The container holder 1 is rotatably mounted on a shaft 2 and driven by a hydraulically actuated rack and pinion 21, 22. Each container such as 3a carries an extrusion die 4 which is supported during extrusion by a hydraulically actuated wedge 7. The extruded product 20 passes into grooves 20 of a rotary carrier 13 which may be freely rotatable or driven by the container holder. An arcuate slot 12, Fig. 4 (not shown), is provided in the press bolster 8. The cutter 16 is a rotary saw.
Patent GB-355965-A (GB)
Title: Improvements in or relating to electrolytic rectifiers and circuits therefor
IPC: H01G9/02
Filed: 1930-09-11
Abstract: 355,965. Rectifying. PARKER, H. J., 105, Elmers End Road, Beckenham, Kent, PALMER, E. A. REA-, 18, Eldon Park, South Norwood, London, and SPENCE, A. G., 103, Elmers End Road, Beckenham, Kent. Sept. 11, 1930, No. 27161. Drawings to Specification. [Class 38 (ii).] An electrolytic rectifier employing, for example, the usual aluminium or tantalum and lead electrodes, has for electrolyte an aqueous solution of sodium pyroborate and potassium bicarbonate, preferably in equal proportions. A suitable rectifying circuit comprises two such cells in series, the output being bridged by a condenser of not less than one microfarad capacity.
Patent GB-856134-A (GB)
Title: Machine for removing dried ware from molds
IPC: B28B13/06
Filed: 1956-12-11
Abstract: 856,134. Removing moulded articles from moulds. HOMER LAUGHLIN CHINA CO. Dec. 11, 1956 [Dec. 12, 1955], No. 27213/60. Divided out of 856,133. Class 87(2). A machine for removing dinner-ware from moulds travelling past it continuously comprises suction devices 131 carried by slides 128 on vertical shafts 117 connecting a pair of endless chains 116 travelling at the same speed as the moulds, and each slide 128 carries a roller 136 engaging a cam track 137 whereby each suction device 131 is moved into the bottom of the ware, e.g. a cup, in a mould 6, suction being applied at the same time to the device 131, which is then raised to lift the ware and to carry it to a position over a moving conveyer 110 where the suction is released to deposit the ware on the conveyer. Each suction device 131 comprises a spring pressed diaphragm to which suction is applied through a flexible hose 133 connected to a vacuum pump via a valve 127 and a rotary distributer (not shown). The latter connects the vacuum pump with a valve 127 only when it is on the side of the apparatus adjacent the moulds, and the valve 127 is actuated by a fixed roller 139 to admit atmospheric pressure to the suction device 131 to release the ware. A downwardly curved arm 123 is rigidly mounted on each shaft 117 for holding the mould steady during removal of the ware therefrom. Specification 856,135 and U.S.A. Specification 2,555,227 are referred to.
Patent GB-383363-A (GB)
Title: Improvements in or relating to compressors for use with refrigerating apparatus
IPC: F04B49/16
Filed: 1931-09-30
Abstract: 383,363. Regulating compressors. LIGHTFOOT REFRIGERATION CO., Ltd. and LIGHTFOOT, K., Bush House, Ald. wych, London. Sept. 30, 1931, No. 27237. [Class 8 (i).] A refrigerating compressor has a cylinder head 5 lifting against the pressure of a spring 46 to release entrained liquid refrigerant and an adjustable clearance device comprising a piston 27 mounted in a cylindrical extension 26 of the head. The piston 27 is adjusted by a screwed spindle 31 prevented from rotation by grooves therein engaged by tongues 43 secured to a plate 36, and by a sleeve 34 engaging the spindle and rotated by a hand-wheel 47 through a tongue 53 and grooves 52 which allow the head to lift freely. The valves are annular and the valve plate 12, head 5 and cylinder 26 are screwed together allowing them to be removed as a unit.
Patent GB-628447-A (GB)
Title: Improvements in and relating to metal cutting machines
IPC: B23D13/00
Filed: 1947-10-10
Abstract: 628,447. Boring and turning mills. ANDERSON, J. Oct. 10, 1947, No. 27247. [Class 83 (iii)] Relates to facing, boring, turning and like machines comprising, as described in Specification 607,405, a member a carried by end supports b, b<SP>1</SP>, of which the support b can be swung about the axis of the support b<SP>1</SP>, a rotatable bracket c mounted on the member a, and a hydraulically-fed slide d which is in slotted engagement with the member a and is adapted to receive one or more tools on at least two of its sides. According to the invention, the machine includes hydraulic means adapted, at the commencement of the feed stroke, to move the tool diagonally towards the work and to hold it to the work during the cutting operation, a stop to restrict the diagonal movement of the tool, and means acting on the relief of the hydraulic pressure at the end of the feed stroke to move and hold the tool clear of the work during the return stroke. At the end near the support b, the member a is received in a split bearing o which is fitted in a cylinder block j carried by a base member i slidable on a slide block h. The lock h is carried by a ring g which is secured to a plate f vertically adjustable on the support b by means of a fixed jaw #<SP>1</SP> and adjustable jaw f<SP>2</SP>; the ring g is screwed in a circular recess in the plate f and is adjustable therein through steps of 90 degrees. The base member i carries a depending T-bolt k and is adjustable along the slide block h by means of a screw-threaded spindle h<SP>5</SP> passing through the head of the T-bolt k and a sleeve h<SP>3</SP> which is mounted in a bracket h<SP>2</SP> on the slide block and can be fixed in position by a pinch screw h<SP>6</SP>. The bolt passes through a slot h in the slide block h and a hole in a clamping plate l. The split bearing o in the cylinder block is engaged on one side by a compression spring m controlled by an adjustable screw-threaded stop m<SP>1</SP>, and on the other side by a piston n which is operated from the hydraulic control circuit of the machine. In operation, when hydraulic pressure is applied to the ram e so as to feed the tool towards the work, pressure is at the same time supplied to the piston n so as to move the split bearing o against the stop m<SP>1</SP>; the resultant movement of the tool is in a diagonal direction towards the work. On the release of pressure at the end of the feed stroke, the spring m returns the bearing o to its original position and the tool moves clear of the work. The slide d may be turned so that feed is in a horizontal, instead of a vertical, direction, the ring g then being correspondingly adjusted through 90 degrees on the plate f. If desired, the action of the spring m may be replaced by a hydraulically-operated piston of smaller diameter than the piston n.
Patent GB-897866-A (GB)
Title: Improvements in or relating to heat exchange apparatus
IPC: F22B1/18
Filed: 1958-08-25
Abstract: 897,866. Nuclear power plant. DURRWERKE A.G. Aug. 25, 1958 [Aug. 26, 1957], No. 27250/58. Class 39(4). [Also in Group XIII] In a heat exchange apparatus in which a heat carrier fluid is cooled by heat transfer to a heat absorber fluid in a once-through forced flow system, the heat carrier outlet temperature is regulated by varying the rate of transfer of heat and the heat absorber outlet temperature is regulated by varying the rate of flow of the absorber fluid. In the arrangement shown in Fig. 1 coolant gas flows in a closed circuit from a nuclear reactor 10 through a heat exchanger 11 where steam is generated in tube banks 16, 17. Bank 16 has a by-pass 28 the flow through which is controlled by a temperature sensitive device 27 in the gas outlet. A temperature sensitive device 24 in the steam outlet controls the total feed water flow. In Fig. 2 an extra tube bank 30 is shown in the downstream gas flow, connected between banks 16 and 17 and with a by-pass 33, the flow in 30 being controlled by device 27. Fig. 3 shows a surface preheater 40 connected like the bank 30 (Fig. 2) and controlled by device 27.
Patent GB-766723-A (GB)
Title: Improvements in or relating to apparatus for attenuating pulsations in the flow of gas
Inventor: BATCHELOR WALTER RAYMOND
IPC: F01N1/08
Filed: 1954-09-21
Abstract: 766,723. Silencing gaseous currents. CHILLOTTS, Ltd. July 21, 1955 [Sept. 21, 1954], No. 27280/54. Class 7 (2). An elongated casing 10 closed at each end by plates 11, 12 respectively provided with apertures for inlet and outlet pipes 13, 14, e.g. for exhaust gases, is provided with an internal structure comprising a pair of members 15, 16 juxtaposed on opposite sides of a longitudinal median plane 17, the members having grooves 19, 21 facing each other so as to form a conduit 28; also, the members are provided at the opposite ends thereof with flared portions 22, 23 and 24, 25 extending from the plane 17 to the casing, and flanges 26, 27 having one or more apertures 35 extending from the conduit 28 to the wall of the casing so as to divide the casing into two compartments 30, 31. The conduit 28 that communicates with the flare 22 of the member 15 is provided with one or more apertures 34, and one or more apertures 38 are formed in the flare 25 at the opposite end of the other member 16 and/or in the wall of an additional groove of that member communicating with that flare. As shown in Figs. 1 and 2, the apertures 34 and 35 respectively are concentrated remote from and adjacent the flares 22, 24. As indicated by the arrows in Fig. 1 the gases pass through the apertures 34 into the chamber 30, from the latter into the chamber 31 via the apertures 35 and thence through the apertures 38 into the interior of the flares 23, 25 ; the gases thereby follow a sinuous path. In a modification, Fig. 4, the conduit 28 communicates with the interior of the flares 23, 25 by additional restricted grooves 32, 33 formed in the members 15, 16. Preferably, a chamber 39 is provided at the inlet end of the silencer, a baffle 41 extending across that chamber, and the inlet pipe 13 which passes through the baffle being perforated and surrounded by glass wool ; a similar chamber 40 may be provided at the outlet end of the silencer. Two or more internal structures may be arranged in tandem within the casing 10.
Patent GB-777904-A (GB)
Title: Power assisted actuator, particularly for hydraulic brakes
IPC: B60T13/565
Filed: 1955-09-28
Abstract: 777,904. Hydraulic brakes. BENDIX AVIATION CORPORATION. Sept. 28, 1955 [Oct. 22, 1954], No. 27597/55. Class 103 (1). In a pneumatic servo-unit for hydraulic braking systems reaction or " feel " is transmitted to the pedal rod 34 in two stages, the first of which is the result of pressure in chamber 115<SP>1</SP> flexing the central portion 106 of the diaphragm 58 so that the part 117 engages the resilient button member 119 which transmits thrust to the rod 34, the second reaction stage beginning when thrust from the pressure fluid in the cylinder acting through rod 148, together with pneumatic pressure in chamber 54 overcomes the force of spring 121 and flexes the diaphragm 58 about its outer rim part. The servo-unit shown is of the " atmosphere suspended type " incorporating an anti-flutter chamber 1151 in the piston in communication with the chamber 54 through an aperture 115. Equalisation of pressure between the master cylinder chamber and chamber 54 along the thrust rod is prevented by the sealing member 162, 166 shown in Figure 4. Specifications 702,554, 702,573 712,338, [Group XXXI], and U.S.A. Specifications 2,685,170, 2,685,171, 2,685,172, and 2,690,740 are referred to.
Patent GB-1004171-A (GB)
Title: Polymeric paints and like coating compositions
IPC: C09F9/00
Filed: 1962-07-18
Abstract: A paint or coating composition comprises an aqueous solution or dispersion of a water-soluble or dispersable film-forming binder having double bonds and capable of oxidation polymerization, and a siccative which is one or more water-soluble metal compounds capable of reacting with atmospheric oxygen with an increase in the valency of the metal component thereof and/or with the formation of a per-compound of the metal component.  The film-forming binder may be tung and/or oiticica oils, an ester of a poly-phenolether resin (containing about two epoxy groups/molecule) and linseed oil fatty acids which is reacted with maleic anhydride, an adduct of linseed oil and maleic anhydride, a linseed oil reacted with maleic anhydride, vinyl toluene and an isophthalate resin (as described in Specification 896,743). The siccative may be a salt of copper, nickel, cobalt or manganese, e.g. the sulphate, acetate, chloride, nitrate, formate, or ammonium chromate, K3Fe(CN)6, Na3(Co(NO2)6), or ammonium borate.  The composition may also contain ammonium ions and/or ammonia lead acetate, and the siccative may be an amino complex of a metal salt.  An oil-soluble siccative metal salt, e.g. cobalt or manganese naphthenate may also be present in the composition.  The concentration of metal ions in the composition may be reduced by a complex forming additive, e.g. ammonium citrate.  The composition may also contain a water-soluble zinc hydroxide amino complex.
Patent GB-191500-A (GB)
Title: Improvements in and relating to automobile front wheel braking apparatus
IPC: B60T11/04
Filed: 1921-10-18
Abstract: 191,500. James, R. W., (Rubury, J. M.). Oct. 18,1921. Brakes, arrangement and disposition of.-Comprises steering-wheel braking apparatus in which the braking effect on the two steering wheels is separately varied when the wheels are steered, the brake being more or less released on the wheel taking the outer side of the curve. In the construction shown in Figs. 1 and 2 the brake is applied by a rod 1 sliding in the steering pivot 2 but prevented from rotating with the stub axle 3 of the steering wheel. The upper end of the rod, which acts on the arm 7 of the brake cam 8, is formed with a cam 6 so that as the steering wheel swivels about the steering pivot the braking effect varies. The cams 6 for the two steering wheels may be so arranged that the brake on the outside wheel is the only one effected. Modifications are described in which (1) the rod 1 rotates with the stub axle about the steering pivot, a cam being provided between the lower end of the rod and the operating lever 10, and (2) the rod or a flexible cable is arranged eccentrically within the steering pivot, the cam 6 being dispensed with. In the construction shown in Fig. 8 the brake is applied by means of a shaft 12, this shaft either having its universal joint 13 out of line with the centre 2<a> of the steering pivot or having its two. parts normally inclined to each other, so that when the stub axle swivels the brake cam 11 rotates slightly relatively to the main part of the shaft 12.
Patent GB-1277452-A (GB)
Title: Short circuit protective network
IPC: H02H7/20
Filed: 1969-06-02
Abstract: 1277452 Transistor pulse oscillators UNITED-CARR Inc 2 June 1969 [12 June 1968] 27806/69 Heading H3T [Also in Division G4] The control current pack of a semi-conductor device 18 includes a transistor 44 shunted by a capacitor 46 and controlled from the load via a diode 52 and a resistor 50 in series so that the control current is interrupted if the load is short circuited. The figure shows a lamp flasher for an automobile comprising a lamp L, a power switching circuit 16, a buffer 20 and a multivibrator shown as free running but which may be monostable or bi-stable. The circuit incorporates protective features as follows: (1) if the load is shortcircuited its voltage is insufficient to turn on diode 52 and thus to maintain the control transistor 44 conducting, so that the drive for the output circuit decays at a rate determined by capacitor 46. This capacitor also provides the initial drive current when switching on. (2) positive and negative voltage surges on the supply lines are prevented from disturbing the multivibrator by providing a relatively low voltage Zener stabilizer 12 for the supply voltage and by a capacitor 40 which shorts the surges at the non-conducting collector through the conducting transistor, (3) excess supply voltage causes a Zener diode 54 to conduct and turn on transistor 16 so that it is not damaged by this voltage; (4) if the supply is accidentally reversed, transistor 16 conducts (through diode 60) with the functions of collector and emitter reversed. This protects the output transistor.
Patent GB-1045798-A (GB)
Title: Improvements in or relating to rubber compositions incorporating steel cord particles
IPC: B60C11/14
Filed: 1963-07-15
Abstract: A rubber composition incorporating steel cord particles comprises a minor proportion of low molecular weight polymeric material.  The material may be depolymerized natural rubber, polybutadiene, polyisoprene, or a depolymerized polyolefin.  The material may also be a low polymer obtained by controlled polymerization of a mono- or diolefin.  The material may be halogenated or sulphochorinated.
Patent GB-603535-A (GB)
Title: An improved snap-action electric switch for use in apparatus for temperature control
IPC: H01H5/18
Filed: 1945-10-23
Abstract: 603,535. Snap-action switches; thermal switches. LANDIS & GYR SOC. ANON. Oct. 23, 1945, No. 27965. Convention date, Oct. 24, 1944. [Class 38 (v)] A snap-action thermal switch has an operating cradle 5 with insulated push-rods 25, 27 engaging leaf-springs 21, 22 which transmit the operating force by means of bulges 23, 24 to the moving member 9, which may be a bowed blade spring such as that described in Specification 551,851 which snaps over to engage the fixed contact 13, or stop 14. The cradle is connected to the thermal element by a sleeve 4 and screwed rod 2 having threads 3, 20, which may be of different pitches, or righthand and left-hand to adjust the setting. A compression spring 18 eliminates the effect on the operation, of slackness in the threads, by keeping the rod 2 in tension, and provides the return force. The upper push-rod 27 is adjustable by a screw 26 to vary the overlap. One of the leaf-springs 21, 22 may be replaced by a bimetal strip to vary the setting with ambient temperature.