baber/WOPTO huggingface dataset:
Patent GB-982710-A (GB)
Title: Process for the production of 1-aryl-hydropyrazoles
IPC: C07D231/04
Filed: 1963-05-08
Abstract: 1-Aryl-hydropyrazoles of the formula <FORM:0982710/C2/1> in which Ar is an aromatic carbocyclic radical with up to 12 ring carbon atoms, R1 and R2 are hydrogen atoms or alkyl groups with up to 4 carbon atoms, R3 and R4 are hydrogen or together represent a direct link, are prepared by reacting a compound of formula <FORM:0982710/C2/2> with a hypohalogenite which may be an alkali metal or calcium hypochlorite or hypobromite or an ester of an alkanol with 4 to 6 carbon atoms and hypochlorous or hypobromous acid, in an inert liquid medium at a temperature between -10 DEG  and +120 DEG  C., being below 25 DEG  C. at the beginning of the reaction.  The amine starting material may have the formula <FORM:0982710/C2/3> in which n is 1 or 2, and is 1 when Ar has more than 6 ring carbon atoms and is reacted with n moles of hypohalogenite per mole of amine compound and keeping the temperature in the range -10 DEG  C. to 0 DEG  C. and maintaining the pH at at least 7 to obtain a product of formula <FORM:0982710/C2/4> Alternatively, if more than n and up to n + 1 moles of hypohalogenite are used and, after mixing at a temperature not exceeding room temperature, the temperature is then maintained above room temperature, the pH being maintained at at least 7, a product of formula <FORM:0982710/C2/5> is obtained.  The aromatic rings may contain substituents e.g. alkyl, cycloalkyl, aralkyl, aryl, alkoxy, aryloxy, cycloalkoxy, aralkoxy, halogens, nitro, fused tetramethylene.
Patent GB-273905-A (GB)
Title: Improvements relating to hemstitching machines
IPC: D05B3/02
Filed: 1926-07-20
Abstract: 273,905. Greenwood, G. July 20. 1926. Sewing-machines; threads and the like, attaching; thread tensioning devices; alarms, applications of. - A hem-stitching machine is provided with a device for guiding threads to be attached to the underside of the work. To the work plate b having slots a for the feed dogs and punch holes c, d is attached an arched plate e beneath which the threads o, p pass from the tensions h, i, j. A knot-catcher k and detectors m are provided. The detectors comprise plates m held by the threads against the stress of springs, but moved to make electric contact with contacts n on breakage of the thread.
Patent GB-670948-A (GB)
Title: Improvements in or relating to rotary pumps, fluid operated motors and the like
IPC: F04C2/44
Filed: 1950-07-20
Abstract: 670,948. Rotary engines and pumps. TAYLOR, F. W. July 20,1950, No. 18188/50. Class 110(ii) The lateral pressure on the rotor 3 of a pump (or engine), of the crescent-chamber type, due to different pressure at outlet 16 and inlet 15, is balanced by providing chambers opposite to the ports 16, 15 containing fluid under pressures equal to those diametrically opposite, which act on portions of the rotor. Fig. 1 shows one type of pump having a laterallymovable stator 4 to vary its capacity, as described in Specification 629,038. The rotor 3 has flanges 7 in which are journalled the cylindrical ends 8 of vanes 9 which seat in rotor grooves 10. The ports 15, 16 communicate with inlets and outlets 17, 18 by way of slidable sleeves 20. Abutments 23 are spring-pressed against the peripheries of the end flanges 7, which are enclosed by outer members 13, to form pressure balancing chambers 22, Fig. 3 (not shown), the upper chamber communicating with the diametrically-opposite front 15, and the lower chamber 22 with the delivery 16. The combined projected area of the two flanges 7 in the chamber 22 is equal to the projected area of the centre portion of the rotor on which the fluid in ducts 15, 16 acts. Ducts 28, 36 lead to channels 29, 35 and the relevant chambers 32 through ports 31, Fig. 2, (not shown). Transverse ducts 32 allow communication between chambers 22 on each side of the rotor. The channels 29, 35 also lead to the space enclosed between the stator 4 and the casing 1 and are provided with spring-loaded valves 37, Fig, 4 (not shown), each closing one end of a duct and normally sealing the other end. The valves are adjusted so that when the pressure in the space, between stator and casing, rises unduly, one of the valves 37 operates to discharge the fluid to the suction side. Packing rings 27 are provided in the flanges 7.
Patent GB-1107325-A (GB)
Title: Shaft means for connecting a driving rotor to a rotor to be driven thereby
Inventor: HENSTRIDGE ALEC GEORGE
IPC: F01D5/02
Filed: 1965-05-01
Abstract: 1,107,325. Gas turbine plant; engine stop gear; turbines. BRISTOL SIDDELEY ENGINES Ltd. May 2, 1966 [May 1, 1965], No.18413/65. Headings F1G, F1K and F1T. [Also in Division F2] The rotor (10), Fig. 1 (not shown), of a lowpressure compressor is driven by the lowpressure turbine of a two spool gas turbine engine via a hollow shaft 1 coupled to the stub shaft of the rotor, the coupling, (see Division F2), being locked by a key member 16 extending through the hollow shaft, the key member also having a splined connection with the stub shaft. The turbine end of the shaft 1 is internally connected to an axially fixed guide 25 by straight splines A, and the corresponding end of the key member 16 is externally connected to a similar guide 27 by straight splines D, the guides in turn being connected to a running nut 26 by opposite hand helical splines B, C, such that, on a preset difference of torque between the shaft 1 and key member 16 being exceeded, (the torque in member 16 being transmitted via the shaft 1 and the rotor (10) stub shaft), due e. g. to over speeding, the nut moves away from the shaft end to trip a valve controlling the fuel supply to the high-pressure turbine and hence to shut down the engine.
Patent GB-905581-A (GB)
Title: Voltage dividers for high voltage gas-filled rectifiers
IPC: H01J17/44
Filed: 1960-05-25
Abstract: 905,581. Supply systems for space-discharge apparatus; converting. ALLMANNA SVENSKA ELEKTRISKA A.B. May 25, 1960 [May 26, 1959], No. 18417/60. Classes 38 (2) and 38 (4). The intermediate electrodes 4 of a gasfilled rectifying valve 1 together with the anode 2 and cathode 3 thereof are interconnected by means of a voltage divider 5 which comprises a number of capacitors 7 and resistors 8-11, the capacitors and resistors being connected into the divider alternately and the resistors each having a resistance value less than the value of the one preceding it, the resistor 8 having the largest value and the resistor 11 the smallest value. A further voltage divider 6 having equal value resistors is connected in parallel with the divider 5, interconnections between the two dividers being provided and the electrodes 4 being connected to tappings on the divider 6. The resistors 8-11 may be voltage dependent.
Patent GB-1012987-A (GB)
Title: Cathode assembly for electron tube
IPC: H01J1/20
Filed: 1963-05-09
Abstract: 1,012,987. Thermionic cathodes. RADIO CORPORATION OF AMERICA. May 9, 1963 [June 11, 1962], No. 18465/63. Heading HID. A cathode assembly comprises an outer cathode sleeve 40, Fig. 3, having one or more inwardly extending projections in a force fit with an inner support sleeve 36, the support sleeve having one or more inwardly-extending projections in contact with a heater 44. As shown, the outer sleeve 40 is formed with three or four inwardly extending dimples 60 which produce corresponding inwardly - extending ridges 61 in the support sleeve 36 when the sleeve 40 is telescoped thereover, these ridges engaging and clamping heater 44 in position. The support sleeve 36 has a wall thickness of only 0.0005 inch and is of a nickel-chromium alloy having a poor thermal conductivity. Alternatively, the outer cathode sleeve 40 may be formed with longitudinally-extending ribs 63, Fig. 5, instead of dimples. The cathode assembly may be employed in a triode, Fig. 1 (not shown), all the tube elements, except for the cathode sleeve 40 and the tube envelope, being assembled in a jig and brazed together, prior to telescoping sleeve 40 over support sleeve 36, these sleeves being sintered together during the final tube bake-out and exhaust.
Patent GB-519366-A (GB)
Title: Improvements in, or relating to, advertising signs
IPC: G09F13/00
Filed: 1938-06-22
Abstract: 519,366. Changing signs. BERKELEY & YOUNG, Ltd., and GRUNDON, G. L. A, June 22, 1938, Nos. 18534/38 and 9457/39. [Class 3 (i)] An advertising sign comprises a front panel of diffusing material bearing a legend, picture &c. through which light is transmitted from a stationary reflector k, which may be of pyramidal, concave or parabolic shape, at the rear. Between the reflector and the panel is a rotary metal disc m formed with numerous small unobstructed p e r - forations whereby a flickering effect is thrown on the display matter and this disc may be polished to act as a reflector for light entering through the panel. The panel may be built up of a sheet of glass c to the rear of which is applied a stencilled picture &c. this being backed by a diffusing sheet d which may be of flemish glass having irregular rounded protuberances on its rear surface. The disc m may be driven by a small electric motor p energized by a battery w, and may be dished as shown for rigidity. The lamp y may be switched off in daylight. Acording to the second Provisional Specification a moving endless metal perforated band may take the place of the rotary disc.
Patent GB-717554-A (GB)
Title: Improvements in or relating to actuating mechanisms
Inventor: KELLEIGH WALDO JAMES
IPC: G05G9/06
Filed: 1952-07-22
Abstract: 717,554. Linkwork. GENERAL CONTROL CO. July 22, 1952, No. 18547/52. Class 80 (3) [Also in Group XXXVII] In mechanism for operating a switch or other device such as a valve or detent, successive strokes in the same direction of a spring- returned slidable actuator alternately engage two interengaging spring-biased pivotal or slidable switch-operating members which are thereby moved from one to the other of two limit positions. In the form shown in Fig. 1 the switch-operating members comprise two similarly-shaped pivoted arms 36a, 36b which are interconnected by a spring and are formed at their ends so as to interlock in either of two limit positions, Figs. 1 and 2. The actuator 41 comprises a spring-loaded plunger to which is pivoted an arm 55 having a finger which, when the actuator is depressed, engages the end of one arm 36 and thus moves both arms 36 to the opposite limit position. The arm 55 is biased to a central position, by a spring 59. The arms 36 are carried by shafts mounted in two bosses in the frame 20, one of the shafts carrying at its other end an arm 31, Fig. 6, having a tab thereon to contact the actuating pin of a switch S. In a modification, the arm 31, and switch S are omitted and each shaft carries an insulating arm 63, Fig. 10, having a silver alloy or other contact 61 secured to a channel member thereon, said contacts being respectively engageable with two pairs of fixed contacts mounted on an insulating panel secured to the frame. In a further modification the shafts carry arms which may be linked to a mechanical device such as a valve or detent. In a still futher modification, Fig. 12 (not shown), the pivoted arms 36 are mounted on a sheet metal frame and themselves each carry a contact, said contacts being respectively engageable with two pairs of fixed contacts. In this construction the actuator may be depressed by hand or by a solenoid. In the form shown in Fig. 14 the actuating pin of a switch S' is engaged by a chamfered collar on one of a pair of spring-loaded slidable rods 81a, 81b whose upper ends have each a conical recess for co-operation with a pin 89 pivoted to an actuator 88 which is upwardly biased by a leaf spring. In the position shown the rod 81b is in its uppermost position, with the chamfered collar abutting a fixed way 82, and holds depressed the rod 81a. On descent of the actuator 88, the pin 89 engages the conical recess in the rod 81b and depresses said rod until the rod 81a is released and is moved by its spring to a position wherein it holds the rod 81b depressed. The rod 89 is urged to a central position by a spring-pressed pin 96 which bears against the pivoted block carrying the pin 89.
Patent GB-924871-A (GB)
Title: Improvements in and relating to garages for motor cars
IPC: E04H6/02
Filed: 1960-05-26
Abstract: 924,871. Garages. L. E. BAYNES. May 26, 1961 [May 26, 1960], No. 18609/60. Class 20 (1). A garage having the usual pivoted doors 10, 11 or an up- and-over sliding door is provided with a sliding door 13 centrally of one or both sides through which the door of a car may project. The door 13 is coupled with the door 11 by links 14, 15, so as to open in unison therewith. In the case of an up-andover door, a lost-motion link is provided.
Patent GB-295707-A (GB)
Title: Improvements in or relating to oil burners
IPC: F23D11/10
Filed: 1927-10-27
Abstract: 295,707. Caloroil Burner Corporation, (Assignees of Kinsman, G.). Aug. 18, 1927, [Convention date]. Divided on 295,698. Drawings to Specification. Liquid-fuel supply; spray burners: burners, attaching. - The invention comprises an oil burner unit having removable and interchangeable burner heads with means for controlling the oil supply to the nozzle and for bye-passing to the furnace part of the air from the supplying means, all of which are described in the abridgment of the main application.
Patent GB-887927-A (GB)
Title: Spindle mounting for the regulating wheel of a centerless grinding machine
IPC: F16H7/02
Filed: 1960-05-27
Abstract: 887,927. Bearings. CINCINNATI MILLING MACHINE CO. May 27, 1960 [Sept. 21, 1959], No. 18774/60. Class 12 (1). [Also in Group XXIII] The bearings 19, 20 for the spindle 15 of the regulating wheel 16 of a centreless grinding machine (Group XXIII), comprises parts 30 secured to a housing 11a by screws 31, and parts 32 adjustable by screws 35 to take up play, felt strips 33 being interposed between the parts. The screws 35 can be locked in adjusted position by screws 36 which connect the screws 35 with discs 37 in counterbores in the housing.
Patent GB-596176-A (GB)
Title: Improvements in shellac bleaching
IPC: C09F1/00
Filed: 1945-07-23
Abstract: An improvement in the bleaching of shellac comprises dissolving the shellac in an organic solvent miscible with water and admixing the shellac solution with an aqueous solution of sodium chlorite; it is preferred that an aldehyde be also present.  The shellac solution, with or without the aldehyde, may be added to the solution of sodium chlorite in a mixture of water in the organic solvent and the temperature should preferably not exceed 80 DEG F. An anti-chlor, e.g., equeous hydrogen peroxide, sodium hydrosulphide or oxalic acid may be added when the reaction is complete.  Specified organic solvents are ethyl alcohol, methyl alcohol and acetone.  Specified aldehydes are formaldehyde, acetaldehyde, paraformaldehyde, furfural and benzaldehyde.  In an example orange shellac is dissolved in aqueous ethyl alcohol containing formaldehyde, added to a solution of sodium chlorite in aqueous ethyl alcohol at 75 to 80 DEG F. and hydrogen peroxide added when the reaction is complete.  Specification 576,910 is referred to.
Patent GB-279554-A (GB)
Title: Improvements in and relating to governors for elastic fluid motors
IPC: G05D13/00
Filed: 1926-07-28
Abstract: 279,554. Parsons, Sir C. A., and Rundle, J. L. July 28, 1928. Fluid relays.-A main steam valve 25 is operated by a servo-motor 19 supplied with fluid by a centrifugal governor, the sliding sleeve of which is extended to form a pilot slide valve 11. If the load increases the balls 2 move inward operating the valve 11 to supply steam to the underside of the servo motor piston 18 thus opening the main steam valve 25 such movement operates through linkage 26 to reset the pilot valve 11. If the load decreases the valve 11 moves to the left to connect the space below the piston 18 to the drain space, thus allowing the spring 24 to close the valve 25 and at the same time reset the pilot valve 11. In Fig. 3 two servo motors are used for a mixed pressure turbine, one controlling the high pressure valve 25 and the other the low pressure valve 39. The supply pipe 20 is connected to the sleeve valve 11 as before and also to a second controlling piston pilot valve 47 which responds to changes in the low pressure steam supply to operate the low pressure valve 39. A non- return ball valve 52 prevents flow direct from the supply pipe 20 to the space 46 below the piston while permitting return flow. To reset the pressure operated pilot valve 47, it is connected by linkwork 55 to a piston 57, supplied with lowpressure steam through a pipe 59. The two servo motors are coupled by links 44 through the bell crank lever 30 and the intermediate sleeve 23.
Patent GB-1024112-A (GB)
Title: Electro-magnetic devices
Inventor: WILLIAMS LORAINE LEONARD
IPC: H01F7/13
Filed: 1963-05-14
Abstract: 1,024,112. Valves. JOSEPH LUCAS (INDUSTRIES) Ltd. May 28, 1964 [May 14, 1963], No. 19013/63. Heading F2V. [Also in Division H1] In an electromagnetically operated valve the armature of the electromagnet is made to move proportionally to the current supplied by providing the wound polepiece with a waisted or reduced diameter portion adjacent its head. The armature is hinged to a frame by a leafspring at one end, and at the other end a cooperating screw and spring are used to adjust the setting.
Patent GB-998458-A (GB)
Title: A two-car garage
IPC: E04H6/06
Filed: 1964-05-07
Abstract: 998,458. Garages. SALZGITTER STAHLBAU G.m.b.H. May 7, 1964 [May 10, 1963] No. 19026/64. Heading B8E. A two-car garage has the vehicle spaces disposed one above the other, the floor of the upper vehicle space being constructed as a movable platform 5 having sliding members 6, 7, guided in rails 8, 9. The platform is moved between a run-out position shown and a retracted position, Fig. 3 (not shown), by a winch and has a pivoted flap 10. A plurality of such garages may form a larger unit.
Patent GB-778791-A (GB)
Title: Improvements in or relating to a method of and means for manufacturing paper
Inventor: WERNER TYRRELL H
IPC: B64D37/06
Filed: 1955-07-01
Abstract: 778,791. Sizing and loading paper pulp. WARREN CO., S. D. July 1, 1955 [Aug. 11, 1954 ; June 13, 1955], No. 19096/55. Class 96. Finely-divided particles of mineral filler, e.g. clay, calcium carbonate, magnesium carbonate, talc, or titanium dioxide, are coated with a manno-galacten, or glycomannan, e.g. from locust bean gum, guar gum, flame tree seeds, huisache shrub, Kentucky coffee tree, mesquite, palo verde, or aroid corms, e.g. by adding an aqueous, swelled colloidal dispersion to dry filler, or to an aqueous filler suspension or adding the latter to dry coating material, and intimately mixed with cellulose fibre pulp, e.g. cotton or wood pulp which is then formed into paper containing 2 to 50 per cent of filler, the particles of which may be from <SP>1</SP>/ 10  to 40 microns in diameter and which may be coated entirely or in spots with the colloid material which may be in the proportion <SP>1</SP>/ 20  to <SP>1</SP>/ 2000  of the filler. Starch may also be present, and the pH value may be adjusted, e.g. from 3.0 to 12.5, e.g. by adding aluminium sulphate, sodium hydroxide, potassium hydroxide, or sodium carbonate.
Patent GB-862103-A (GB)
Title: Devices for measuring the stresses in force-transmitting members
IPC: G01L1/02
Filed: 1957-06-18
Abstract: 862,103. Dynamometers. KOPPERS G.m.b.H., H. June 18, 1957 [July 18, 1956], No. 19136/57. Class 106 (2). An hydraulic load indicator, connected between two coupling-parts 1, 2 transmitting a load, comprises a cylinder block 3 having a cylinder formed axially therein from one end, in which a piston 4 works and beyond which the piston projects to abut against a thrust member 23, secured by sleeve-pieces 24 to a ring 25 screwed to a head 26 of the coupling part 2, while the other coupling part 1 is secured to the cylinder-block 3 by claws 17 and a pressuregauge 16 connected to the working space 14 indicates the fluid pressure therein. The two hollow cylindrical pieces 24 interfit with two similar pieces 19 carrying the claws 17 to surround the cylinder block 3, Fig. 4, and the block has recesses 20 which interact with the claws 17 to form a bayonet-joint, which can be locked with a ring and screw 29, 28. A pull on the coupling-part 1 will produce a tension in the member connected to the part 2 which is indicated by the pressure-gauge 16 and vice versa. In a modification the coupling parts are adapted so that tension or thrust can be measured.
Patent GB-1109975-A (GB)
Title: Crystalline cyclic organotin compounds and process of making the same and halogen-containing resin compositions stabilised thereby
IPC: C08K5/57
Filed: 1966-05-02
Abstract: Plasticized and unplasticized halogen containing resins, particularly polyvinyl chloride homopolymers and copolymers, are stabilized by addition of a cyclic organotin compound of formula <FORM:1109975/C3/1> in an amount from 0-5 to 10 parts by weight for 100 parts by weight of resin.  Suitable plasticizers include dioctyl phthalate, octyl diphenyl phosphate, epoxidized soybean oil and epoxy higher esters having 20 to 150 carbon atoms. Additional stabilizers such as aromatic amines, salts of polyvalent metals and a C6-C20 monocarboxylic acid having no nitrogen atoms in the molecule or polyhydroxy phenols (of which many examples are given) may also be used in the composition, as may be organic compounds containing at least one epoxy group, organic sulphides and mercapto acid compounds. In examples, P.V.C. or vinyl chloride-vinyl acetate copolymer is compounded with the tin compound and dioctyl phthalate and an ester wax, thiomalic acid and di-t-butyl-p-cresol, ester wax, 1,1,3 - tris(21 - methyl - 41 - hydroxy - 51 - t. - butylphenyl) butane and sulphur, thiomalic acid, thiodipropionic acid or mercaptobenzoic acid, and chlorinated polyethylene, epoxidized soybean oil, di-t.-butyl-p-cresol and sulphur, thiodiacetic acid or thiomalic acid.ALSO:The invention comprises cyclic bis dialkyl tin oxide compounds of aromatic carboxylic acids of formula <FORM:1109975/C2/1> wherein R1 is an aromatic radical having up to 30 carbon atoms, R2, R3, R4 and R5 are alkyl radicals having from 3 to 5 carbon atoms, x is a number from 0.7 to 17, y is a number from 1 to 5 and x/y is from 0.7 to 3.5, the salt having a melting point of at least 90 DEG  C. (The dotted bonds are only intended to indicate that the structure is cyclic and do not denote specific tin oxygen bonds).  The preferred compounds have a ratio of x/y of about 2 (i.e. 1.7-2.5).  The aromatic group R1 may contain 1 to 5 substituents per ring but preferably not more than 3 with the ortho positions free.  The substituents may be aliphatic, cycloaliphatic, aromatic or heterocyclic groups or inorganic groups such as halogen, nitro or hydroxyl.  Preferred R1 groups include p-alkyl, p-halo and p-aryl phenyl all unsubstituted in the ortho-position and b -naphthyl. These compounds may be prepared by reacting the normal dialkyl tin salt of the aromatic carboxylic acid (i.e. one containing 2 moles carboxylic acid per 1 mole dialkyl tin) with the corresponding dialkyl tin oxide.  The compounds may be used as stabilizers in polyvinyl chloride resin compositions. They may be added in an amount of 0.5 to 10 (preferably 1 to 5) parts by weight per 100 parts of resin.  The compounds may be used in combination with a plasticizer such as an epoxy compound or with additional stabilizers such as phenols, organic sulphides and mercapto-acid compounds and give the resin improved resistence to deterioration when heated at 375 DEG  F. (see Division C3).