baber/WOPTO huggingface dataset:
Patent GB-330860-A (GB)
Title: An arrangement for starting mechanically co-operating electric motors connected to a common generator
IPC: H02P5/48
Filed: 1929-10-21
Abstract: 330,860. Allmõnna Svenska Elektriska Aktiebolaget. Oct. 27, 1928, [Convention date]. Maintaining proportional speed.-Relates to the starting of motors 20, 30, 40 supplied from a variable voltage generator 10, and constrained to run at predetermined speeds by field regulators 25, 35, 45 operated through differential gears by the associated motor and by a master shaft 4. At rest the apparatus is in the position shown. Closure of push button 5 energizes coil 50, which by closing contacts 51 maintains itself and by closing contacts 52 energizes the fields and armature contactors 22, 23, 42 of the motors. Closure of a push button 7 then causes a pilot motor 70 to turn the arm 13 of a potentiometer. so as to excite the generator. When the arm 13 has turned so far that associated contacts 16 are closed, a second pilot motor 60 or several interconnected synchronous motors is thereby started and rotates field rheostats 26, 36, 46 from a position in which they short-circuit the ordinary regulators so as to decrease the fields of the motors. As soon as the pilot motor 60 starts, contacts 64 are opened thereby arresting the running motor 70. At the end of the movement of the motor 60, contacts 66 are bridged.so as to permit further forward movement of motor 70. When the " stop " pushbutton 9 is operated, coil 50 is de-energized and associated contacts 59 closed, causing motor 70 to run backwards, and finally causing the arm 13 to bridge contacts 18, whereupon the motor 60 runs backwards and returns the rheostats 26, 36, 46 to the initial position. Contacts 19, 69 associated respectively with the arm 13 and the rheostat 36, render the push button 5 ineffective unless the apparatus is in the initial position. The motors 60, 70 are provided with the usual limit switches. Resistances may be inserted in the armature circuits of the motors 20, 30, 40 so as to give them equal acceleration although their loads may be different.
Patent GB-890483-A (GB)
Title: Improvements in or relating to protective equipment for elevator systems
IPC: B66B13/26
Filed: 1959-09-21
Abstract: 890,483. Door operating appliances. WESTINGHOUSE ELECTRIC CORPORATION. Sept. 21, 1959 [Sept. 25, 1958], No. 32020/59. Class 65(1). [Also in Group XXXVI] The presence of a person or other electroconductive body in the path of a lift door is detected by means of capacitive electrodes positioned at the front edge of the car door and separate electrodes positioned at the front edge of the station door which are coupled to the car door electrodes at least during closing movement of said door. As shown, a number of electrodes DPA are mounted near the edge of a lift car door DP and are connected to the control electrodes of cold cathode gas tubes SET, mounted within the door DP. A series of shields DPS are also mounted near the edge of the car door DP and connected to the cathodes of the gas tubes SET. When a person comes within the path of the closing door, the change in capacitance to earth causes an increase in the alternating voltage present on the control electrodes, firing one or more of tubes SET. When any tube SET fires, the cathode potential increases, firing tube 54, energizing relay SR which operates the door opening solenoid. A further set of electrodes DPHA and shields DPHS is provided on the lift shaft door at each station and connected to the respective component in the car by means of contacts such as SBA, pivoted about point 65 and swung to engage contacts DPHX on the lift shaft door when the car is at a station. The contact SBA may be swung into position by a cord drive coupled to the door movement, or as in Fig. 6 (not shown) by a solenoid energized by the door operating gear. Shields CJS, HJS, also connected to the cathodes, are mounted on the door jambs to prevent operation of relay SR by the proximity of the door jamb and the electrodes DPA, DPHA as the doors close. Fig. 7 shows a modification in which electrodes DPHA and shields DPHS for the station doors are carried by a panel hinged to the car door at 138 and swung into a cavity in the station door by means of a motor HM. In Fig. 8 (not shown) electrodes DPA are provided with plates which are brought into proximity with similar plates connected to electrodes DPHA on each lift shaft station door so as to provide capacitive coupling. Either capacitive coupling or contact brushes may be provided to connect the shields DPHS to those on the car door. Figs. 9, 9a (not shown) relate to modification of the lift control circuit described in Specification 765,439 for use with the present invention. Reference has been directed by the Comptroller to Specification 711,515.
Patent GB-874970-A (GB)
Title: Rapidly hardenable compositions of epoxy resins and polyamide resins
IPC: C08L63/00
Filed: 1958-10-07
Abstract: Epoxide compounds containing n epoxide groups calculated on the molecular weight where n is a whole or fractional number greater than 1 are hardened by reaction with a polyamide resin derived from a di- or tri-merized unsaturated fatty acid and an aliphatic polyamine in the presence of, as hardening accelerator at least one aliphatic di- or poly-amine containing at least one tertiary amino group and at least one primary amino group.  Specified epoxide compounds are butadiene oxide, 1 : 2 : 5 : 6-diepoxy hexane, 1 : 2 : 4 : 5-diepoxy-cyclo-hexane, methyl-9 : 10 : 12 : 13-diepoxy stearate, the dimethyl ester of 6 : 7 : 10 : 11-diepoxyhexadecane-1 : 16-dicarboxylic acid, diethylene glycol-bis-(3 : 4-epoxycyclohexane carboxylate, 3 : 4-epoxycyclohexylmethyl-3 : 4-epoxycyclohexane carboxylate, the reaction products of epichlorohydrin with aniline or 4 : 41-di-(monomethylamino)-diphenyl methane, polyglycidyl esters and polyglycidyl ethers of which many are specified. Specified di- and polyamines are N : N-dialkyl-1 : 3-propylene diamines.  The reactive compositions specified in the examples are N : N-dimethyl-1, 3-propylene diamine, a polyamide made from dimerized unsaturated vegetable fatty acids and diethylene triamine and epoxy compounds made from diphenylol propane and epichlorohydrin, an o-cresol-formaldehyde novolak resin and epichlorohydrin, butane diol, aniline and epichlorohydrin and terephthalic acid and epichlorohydrin, nonreactive ingredients present in the compositions of the examples being silicon dioxide, kaolin and dibutyl phthalate. The use of these reactive compositions for the bonding together of aluminium foils is described.
Patent GB-1008739-A (GB)
Title: Improvements in or relating to timing pulse generators
Inventor: DAVIES ERIC
IPC: H04N5/10
Filed: 1961-09-08
Abstract: 1,008,739. Pulse discriminating circuits. MARCONI CO. Ltd. June 1, 1962 [Sept. 8, 1961], No. 32271/61. Heading H3T. In a synchronizing pulse separator for television equipment, the composite line and field synchronizing pulses are integrated in a capacitor K so that only the longer-duration field pulses result in the capacitor charging sufficiently to trigger a negative resistance semi-conductor device. As shown, positive - going line and field pulses at terminal A are integrated by resistor R 1 , capacitor K and diode D. Only the longer-duration field pulses charge capacitor K sufficiently to trigger the unijunction transistor, giving an output pulse at C. Capacitor K now discharges via resistor R 3 , the time constant being such that the diode D is rendered non-conductive for the duration of the sequence of field synchronizing pulses. This ensures that only one output pulse is provided at C for each sequence of field pulses. In Fig. 1 (not shown), diode D is omitted, the circuit executing a series of sawtooth oscillations during the sequence of field pulses. In Fig. 6 (not shown), composite pulses derived from a high impedance source, are fed directly to capacitor K, the remote end of resistor R 1  being connected to a point of constant potential so as to provide temperature compensation. In Fig. 5 (not shown), the unijunction transistor is replaced by a four-layer diode.
Patent GB-466123-A (GB)
Title: A device in bottle washing apparatus
IPC: B08B9/34
Filed: 1935-11-21
Abstract: 466,123. Bottle - washing machines. LANNMARK, S. Nov. 21, 1935, No. 32283. Convention date, Dec. 1, 1934. [Class 138 (i)] A bundle of pressure pipes 11, Fig. 2, rotatable about an axis 14 for washing bottles are detachable simultaneously for cleaning purposes. The bottles are carried in holders 7 attached to chains 2 running over wheels 1. The wheels are attached to hollow pins 3, 4, rotatable in bearings 5, 6. The pins rotate relatively to a supply pipe 9 and cock 8. Ducts 10 lead to various pipes 11 according to the position of the pins 3 relative to the exhaust 8. Liquid passes from a pipe 11 through orifices 15, 19 to the bottles. The free end of the pipe bundle 12 is covered by a cap 16 on the pin 4. Screens 20, Fig. 1, catch outflowing liquid from the bottles to pass out through lower holes 19 in the sleeve 17. The pipe bundle can be removed by removing the cap 16 and a nut 13 on the spindle 14.
Patent GB-815008-A (GB)
Title: Improved process and apparatus for the concentration of solutions
IPC: F25C3/00
Filed: 1956-10-23
Abstract: In a method of concentrating solution by freezing the solvent the solution is circulated in a freezing space about an axis and an additional helical movement is imparted to the solution in each of a plurality of coaxial annular zones superimposed along the axis.  The walls 3, 5 of a <PICT:0815008/III/1> <PICT:0815008/III/2> cylindrical vessel defining the freezing space are enclosed in a jacket 8 through which brine or a volatile refrigerant flows.  A base 16 rotating on shaft 26 carries vertical arms 19 to which are fixed scrapers 18 and between which are supported stirring members 20, shaped so as to give the solution a helical movement, and 21, directing the solvent crystals back towards the vessel walls.  The crystals move to the top of the tank and are removed by discharge from a ring 23 carried by the upper ends of arms 19 to a screwed portion 25 fixed to the cylinder cover 7, from where the crystals pass to a percolating device.  Helical blades may be fixed to the vessel wall to assist the upward movement of the crystals.  Weak solution is introduced at 29 and 30 and concentrated solution drawn off at 13.  The vessel may rotate while the arms 19 are fixed or two coaxial sets of rotating arms may be provided with a fixed support for the members 20, 21. Solution enters the percolating device at 41 or by apertures 42 in a rotating hollow shaft 43.  The crystals are raised by screw conveyer 37 to a mixing zone 38 and from there to a percolating zone 44 in which the crystals are largely separated from the solution to cells formed by vertical plates 46 fixed to the wall of cylinder 31.  The crystals then pass to an emptying device 49 and are discharged through pipe 50.  The percolator may be integrally combined with the freezing vessel by e.g. being located above the freezing space and in direct communication with it.  The cylindrical vessel may be in a horizontal position.
Patent GB-1299611-A (GB)
Title: Improvements in braiding machines
Inventor: HARTHMAN FRANCIS PETER
IPC: D04C3/00
Filed: 1969-06-26
Abstract: 1299611 Braiding-machines BRITISH INSULATED CALLENDERS CABLES Ltd 24 Sept 1970 [26 June 1969] 32367/69 Heading D1C The machine comprises several -4N+2 where N is a positive interger-endless tracks each enclosing eccentrically the braiding axis 1. The bobbins move along one set of tracks 3 in one direction and along the other 5 in the opposite direction, and all pass along a part 6 of their tracks which is inside all the others. Each track is provided with at least one arcuate carrier 12 for at least one bobbin. The carriers are guided by rollers 17 and rails 18 and driven by sprockets 23, 25 engaging a rack which is long enough to be in engagement with at least one of them. The sets of sprockets are driven in opposite directions, one of each set being mounted coaxially at track intersections close to the axis.
Patent GB-171041-A (GB)
Title: Rivet extractor
IPC: B25B27/22
Filed: 1920-11-17
Abstract: 171,041. Watts, H. W. Nov. 17, 1920. Rivet-extractors.-Chain-rivet extractors have the chain-engaging jaws pivoted to a cross-head or the equivalent and connected with the nut of the screw-punch in such a manner that the latter is centred with respect to the rivet, and the reaction of the nut locks the jaws tighter on the chain while the rivet is being forced out. As shown in Fig. 1, the jaws 2 are pivoted to a cross-head 3 slidable on the stem 6 of the screwpunch 7, and are connected to the nut 5 by togglelinks 4, the reaction of the nut acting through the links to increase the grip of the gripping- blocks 11 on the chain-roller 15 during the extraction of the rivet. A coil-spring 10 round the stem holds the jaws 2 normally in closed position. In the modification shown in Fig. 4, the nut 5 is connected to the pivoted jaws 2 by means of pins 18 on extensions 16 of the nut engaging converging slots 17 in the jaws. In the further modification shown in Fig. 7, the jaws 2 are pivoted at an intermediate point between handle members 14, curved recesses 21 in the jaws being engaged by the circular-shaped nut 5, the flat sides of which are formed with ribs 22 working in grooves in the handle members 14.
Patent GB-1068397-A (GB)
Title: Improvements in or relating to machines for plucking poultry
Inventor: CORN CHARLES VERNON
IPC: A22C21/02
Filed: 1965-07-29
Abstract: 1,068,397. Poultry plucking machines. GAINESVILLE MACHINE CO. Inc. July 29, 1965, No. 32454/65. Heading A2U. A machine for plucking poultry conveyed through it along a substantially straight, horizontal path 134, Fig. 1, comprises a plurality of discs 89, 89<SP>1</SP> disposed along and on both sides of said path. The discs are mounted on the ends of rotatable, substantially horizontal axles directed substantially at right angles to said path. Flexible plucking fingers 103, Fig. 7, are mounted on the discs, so that, when the axles and discs are rotated, the fingers move in circles concentric with the respective axles, and bend radially outwards to engage and pluck feathers from passing poultry suspended, head lowermost, from shackles on an overhead conveyer. Discs 89 are mounted in a frame A and are rotated by belt drives from electric motors 92 and 96. Discs 89<SP>1</SP> are mounted in a frame B and are rotated by belt drives from electric motors 92<SP>1</SP> and 96<SP>1</SP>. The frames A and B are mounted in a carriage D in a main frame. The carriage D can be raised or lowered by operating windlasses 33 and 33<SP>1</SP>. The frames A and B can be moved towards or away from each other by turning the handles 60 and 60<SP>1</SP> of two-segment screws 56 and 56<SP>1</SP>, and parallel to each other by turning the handles 72 and 72<SP>1</SP> of screws 68 and 68<SP>1</SP>.
Patent GB-1060632-A (GB)
Title: Steroid compositions
IPC: A61K31/57
Filed: 1963-08-16
Abstract: Injectable contraceptive compositions comprise 16a , 17a -dihydroxyprogesterone acetophenide, a protracted steroidal estrogenic agent, and an injectable carrier medium.  Specified estrogenic agents are estradiol valerate, enanthate, undecylate, palmitate, butyrate, caprylate, and estradiol cyclopentyl propionate. The carrier medium may comprise benzyl alcohol, benzyl benzoate, a liquid glyceridic oil, e.g. sesame, corn, or castor oil.
Patent GB-629954-A (GB)
Title: Improvements in circuit arrangements employing thermionic valves
IPC: H04B1/20
Filed: 1946-11-01
Abstract: 629,954. Radio receiving apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., and MOIR, J. Nov. 1, 1946, No. 32509. Drawings to Specification. [Class 40 (v)] In a radio receiver additional audio-frequency gain is provided for gramophone reproduction, by arranging a carrier frequency stage so that it will also amplify audio-frequency signals. A resistor is connected in the anode circuit of the carrier frequency amplifier and shunted by a capacitor which byepasses it at carrier frequencies, the anode end of the resistor being permanently connected to the input of the audio-frequency amplifier through a condenser. Preferably, this connection is to a point in the detector load such as to give the required amplitude of audio-frequency to the input of the audio-frequency amplifier. Specification 424,702 is referred to.
Patent GB-821223-A (GB)
Title: Improvements in and relating to air or gas blast electric circuit breakers
Inventor: MAASS HERBERT FRIEDRICH
IPC: H01H33/83
Filed: 1954-11-11
Abstract: 821,223. Gas-blast switches. FERGUSON PAILIN Ltd. Dec. 8, 1955 [Nov. 11, 1954], No. 32694/54. Class 38 (5). In a gas-blast switch having an air space 15a between a contact 16 supported from one end of an insulating enclosure 1 and the adjacent inner surface of the enclosure, provision is made to discharge pressure air or gas from this space to prevent breakdown of the enclosure. The tubular supporting member 27 of the contact 16 may extend through the opening in the end of the enclosure with a small annular clearance 15b to permit the discharge of air or gas to atmosphere through an outlet 26 in a member 14. Alternatively, the member 27 may close the end of the enclosure but have passages 30 to permit the discharge of air or gas from the space 15a into the exhaust from the contact 16.
Patent GB-254201-A (GB)
Title: An improved process for renovating old discarded timber sleepers
IPC: E01B3/10
Filed: 1925-12-28
Abstract: 254,201. Falkenberg, W. Nov. 11, 1925, [Convention date]. Sleepers, wood. - Sleepers are formed from rectangular core pieces b cut out of old sleepers, Fig. 2, placed side by side on edge, and united to form a sleeper of normal profile, Fig. 4. The edges of the sleeper may be bevelled at d, e, while the joint edges may be notched to receive a packing g which is forced into place and covered with pitch h. The joints are protected with packing f. Screws c are driven in alternately on opposite sides, and have square heads. The screws are dipped in oil and are screwed into the timber mechanically with increasing velocity.
Patent GB-1426988-A (GB)
Title: Thermoplastic resin composition of vinyl chloride polymers hydraulic transmission controls
IPC: C08L27/00
Filed: 1974-07-24
Abstract: 1426988 Graft polymer/vinyl chloride polymer compositions KANEGAFUCHI CHEMICAL INDUSTRIES CO Ltd 24 July 1974 [25 July 1973] 32763/74 Heading C3G A composition comprises (1) from 50 to 97 parts by weight of a vinyl chloride polymer having not less than 70% by weight of vinyl chloride units and (2) from 50 to 3 parts of a graft polymer comprising (a) from 20 to 80 parts by weight of a backbone copolymer having units of an alkyl acrylate and units of at least one (meth)allyl carboxylate of the formula wherein X is a hydrogen atom, an alkyl group, a halogen atom or -CH 2 COOY and Y is -CH 2 -CH = CH 2  or -CH 2 -C(CH 3 ) = CH 2  and (b) from 80 to 20 parts of monomers grafted thereon, the graft monomers comprising from 10 to 50% by weight of at least one vinylic cyanide and 90 to 50% of at least one alkyl methacrylate, optionally with from 0 to 20% of at least one monomer copolymerizable therewith. Examples are given in which a butyl acrylate/allyl methacrylate copolymer grafted with acrylonitrile and methyl methacrylate is blended with polyvinyl chloride.
Patent GB-842435-A (GB)
Title: A drawworks for well drilling
IPC: E21B19/08
Filed: 1958-10-14
Abstract: 842,435. Boring earth; cutting pressure control. CALIFORNIA RESEARCH CORPORATION Oct. 14, 1958 [Oct. 24, 1957], No. 32810/58. Class 85. [Also in Group XXIV] A rotary well drilling draw-works tor use in an off-shore drilling rig has means to maintain constant pressure of the drill bit on the well bottom regardless of movement of the drilling, barge with the surface of the water. The apparatus comprises a power unit 10 driving through a clutch 12 a sprocket assembly 18 which is free to rotate on the shaft 20 of a variable ratio gear box 22 which also includes a fluid coupling which can be set to provide a given torque output for a constant engine speed. The sprocket assembly 18 can be coupled to the shaft by a clutch 24. The shaft 26 drives a sprocket 30, which can be coupled to the sand line drum 32 by a clutch 34, and also drives a sprocket 38 which can be coupled to the casing line drum 60 by a clutch 84. The sprocket assembly 18 also drives a catshaft 54. The casing line drum is free to rotate on the shaft 66 and carries a second shaft 40 coaxial with the first. Free to rotate on the shaft 40 is the sprocket wheel 38 which carries a clutch member 76 with splines 78 which drive friction discs 80 and 82. The hub 86 of the clutch is keyed to the shaft 40 and has splines 90 which drive plates 92 and 94. The portion 96 of the clutch has a chamber 98 one wall of which is formed by a diaphragm 100. Pressurized air can be admitted to the chamber through duct 101 to flex the diaphragm and force the friction components 80, 82, 92 and 94 against the flange 88. At the opposite end of the casing line drum is a main brake assembly 104, secured to the shaft 66, which can be coupled to the drum by a clutch of similar construction to that already described and operated by air admitted through the duct 131. A brake band 140 is applied to the brake drum by a manually operated lever which also actuates the clutch air valve so that the clutch is engaged as the lever is displaced. Similarly the clutch is disengaged as the brake is released. An over-riding control permits the clutch to be permanently engaged regardless of the position of the brake lever. If the air supply should fail an emergency brake band 158 is applied by a spring to a brake drum 156 which is secured to the casing line drum. The emergency brake can also be operated manually. In operation the drive is set to rotate the casing line drum in a direction to wind in the casing line at a tension determined by the setting of the fluid coupling and hence support the bit with a predetermined weight on the bottom. If the drilling barge lifts with the water, the fluid coupling is over-loaded and the line is paid off the drum at the pre-selected tension, whereas if the barge drops the drum is driven to wind in the line until the tension is correct.
Patent GB-266495-A (GB)
Title: Improvements in dabbing mechanism for noble's combing machines
IPC: D01G19/02
Filed: 1925-12-30
Abstract: 266,495. Otty, T. Dec. 30, 1925. Combing-machines. - The dabbing-brush is rotated slowly about a vertical axis to distribute the wear and works in conjunction with a device, which is reciprocated with it and is operated by its mechanism, to lay the fibres near the pins and prepare them for combing. The brush 2 is circular and is mounted on a hollow spindle 4 rotating on a spindle 5 secured to the reciprocating guide 6. The shaft 19 of the eccentric which reciprocates the guide is geared through worm gearing 18, 17, bevel gearing 14, 12, and a worm 10 to a worm wheel 8 splined on the shaft 4. An inclined depressing piece 20 is mounted on the disc 3 carrying the brush 2 by means of encircling straps 21 and is prevented from rotating by a projection on the straps engaging and sliding on a fixed guiding bracket.