baber/WOPTO huggingface dataset:
Patent GB-293968-A (GB)
Title: Improvements relating to radial cylinder internal combustion engines
IPC: F01M1/20
Filed: 1927-06-27
Abstract: 293,968. Roe & Co., Ltd., A. V., and Redrup, C. B. June 27, 1927. No Patent granted (Sealing fee not paid). Force-feed lubricating. - A spring-pressed relief valve m is arranged in a chamber u formed within the crank shaft a of a radial-cylinder internal-combustion engine, lubricant entering the chamber past the valve from the supply passages d - - j being delivered through passages v in the crank web c into the crank chamber, where it assists in the lubrication of the engine, and returns to the sump w. The compression of the valve spring n may be adjusted by rotating a member o by means of a rod q having a squared end r, the member o being threaded into a sleeve p and being held in adjusted position therein by spring-pressed plungers s carried by the part o and adapted to engage serrations in the sleeve p. A connection x for a pressure gauge is provided.
Patent GB-349784-A (GB)
Title: Improvements relating to lever fasteners
IPC: A41F11/12
Filed: 1930-06-04
Abstract: 349,784. Lever clips. WALKER, Ltd. T., WALKER, G. T., and WOOD, H. H., Birmingham Buckle Works, St. Paul's Square, Birmingham. June 4, 1930, No. 17078. [Class 44.] In a lever-clip for braces, suspenders, &c. of the kind in which a lever 5, 6 clamps the webbing &c. 9 against a wire cross-bar 1 which is enclosed in, and secured by stitching to, the end 8 of the webbing, the wire bar is provided with a depending finger-piece also enclosed in the end 8, the bar at the same time having overlapping portions providing a substantially straight and continuous clamping surface for co-operation with the lever. As shown in Figs. 1, 5, 6 the wire is bent to provide a depending loop portion 2 the upper limbs overlapping and cranked at 3 to provide an aligned bar-member 1, the ends 4 of which are inturned to receive pivot lugs 7 on the lever 6. In a modification, Fig. 8, the lever 6 is pivoted centrally on a wire the ends of which are bent inwards to overlap side by side and provide the cross-bar 1, the free ends 2 of the wire being then bent downwards into hook form to provide the finger-piece. According to the Provisional Specification, the parts of member 1, instead of overlapping, may meet or nearly meet, the gap being bridged by a metal plate fingerpiece.
Patent GB-321647-A (GB)
Title: A new or improved apparatus for measuring the strength and direction of magnetic fields
IPC: G01R33/028
Filed: 1928-06-13
Abstract: 321,647. Binny, J. G. June 13, 1928. Earth-inductor machines; brush-holders.-An earth-inductor compass comprising a coil 1 connected to a two-part commutator 4 and mounted on a shaft 2 rotated by a motor 3 has the brushes 6 carried by a casing 5, which also carries the motor 3 and a motor 8 by which the casing is rotated through spur-wheels 9 and a fixed rack. The brushes 6 are connected through a relay R, preferably of the moving-coil type, to the turning motor 8. The relay may be mounted inside the casing 5. The casing 5 is rotatably mounted within a fixed outer casing 7, in a bearing on which is rotatably mounted a compass card 10 having two adjustable screws 11 between which rides a projecting arm 12 on the casing 5 so as to provide a lost-motion connection between the casing 5 and the card 10. The brushes 6 and relay R are so set that the motor 8 overruns the point of reversal of the current generated in the ooil 1 by the earth's field and is reversed by the operation of the relay when the reversed current has grown to a predetermined value. The angle through which the system moves on each side of the true direction may be 10 degrees or more, the lost-motion connection 11, 12 being adjusted to this angle.
Patent GB-989724-A (GB)
Title: Polymers of propylene and other ª‡-olefins and processes for preparing them
IPC: C08F210/06
Filed: 1961-05-11
Abstract: Solid, crystalline polymers are made by initially polymerizing propylene alone and then polymerizing another alpha - mono - olefinic hydrocarbon in the presence of the initially formed polypropylene until a polymer containing at least 80% by weight of propylene units forms, all the polymerization being effected in the range of 0 DEG to 300 DEG C., and a pressure in the range of 1 to 2000 atm. and in the presence of a catalyst formed from (1) a halide of a transition metal, and (2) an activator or activators selected from:  (a( Al, (b) a Group Ia, IIa, or IIb metal or alloy thereof with Al, (c) an organo-metallic compound of Al or of a Group Ia, IIa or IIb metal, and (d) a complex hydride or complex organo-metallic compound of Al or B and a Group Ia, IIa or IIb metal.  As optional third ingredients in the catalysts there may be used alkali metal halides and hydrides, metal alcoholates, magnesium oxide, aromatic ethers, tertiary amines and tertiary phosphoramides. Mono-olefinic hydrocarbons specified are ethylene, butene-1, pentene-1, hexene-1, heptene-1, decene-1 and styrene.  The polymerization is preferably carried out in a liquid hydrocarbon medium, and an apparatus may be used which consists of two zones separated by a baffle, in the first of which zones propylene is polymerized with agitation from a single agitator, and in the second zone a different mono-olefinic hydrocarbon is polymerized with the use of multiple agitators in the presence of the polypropylene formed in the first zone.  The examples describe the sequential polymerization of propylene and ethylene, butene-1 and hexene-1 in the presence of the following catalyst systems:  (a) LiAlH4 and TiCl3, (b) Et2Al2Cl3, TiCl3 and tris-N,N-dimethyl phosphoramide, (c) Li, TiCl3 and diphenyl ether, (d) Et3Al2Cl3, TiCl3 and MgO, (e) Et3Al, VCl3 and NaF, (f) Et3Al, TiCl3 and aluminium tripropoxide, (g) LiAlH4, TiCl3 and LiH, and (h) Et3Al2Br3 and TiCl4. The resulting polymers have brittle points below 0 DEG  C.
Patent GB-698769-A (GB)
Title: Toy motor cycle with a mounting and dismounting cyclist
IPC: A63H17/22
Filed: 1951-07-19
Abstract: 698,769. Mechanical toys, ERNST, M. July 19, 1951, No. 17144/51. Class 132 (iii). A toy motor cycle 2, which stops at predetermined intervals during which stoppage its rider 27 dismounts and mounts, is driven by a spring motor which includes a shaft 3 secured to a cam disc 4 carrying pins 5, 6 and 7. When the ground wheels are stopped by a clutch or the like in known manner, the cam continues to rotate, and the pin 5 engages a double armed lever 10, pivoted at 9. The lever is connected by a spring 18 to a member 16 secured to the handlebars 17, and the lever movement turns the handlebars clockwise in a vertical plane about an axle 15, to lift the rider by its arms 28, 28<SP>1</SP>. Simultaneously, the right leg 31 is moved backwardly, and the pin 7 engages a second double armed lever 11, pivoted at 8. The lever 11 is connected through a spring 49 to a bridge 13 carrying the axle 15, and the handlebars and rider are thereby rotated laterally to position the rider to the side of the cycle. The left leg 32 is secured to a support 46 pivoted on brackets 43. A bracket 20 between the bridge 13 and the front forks causes the turning of the front wheel with the handlebars against the action of a spring 22. The right leg movement is effected through a mechanism within the rider's body, and includes a plate 37, Figs. 4 and 5, secured to an axle 35, to which is rigidly connected the left arm 28<SP>1</SP>. A lug 36 on the plate engages a forked plate 40 having a toothed segment 39 which engages a pinion 30. The latter drives an axle 29 to which is fixed the right leg. On the return movement, the pin 6 engages the lever 10 to raise the rider, and then the pin 7 is released from the lever 11, and a spring 52 swings the rider and handlebars into alignment with the frame. The pin 6 then disengages the lever 10, and the rider is lowered, and the right leg moves to its initial position. Specification 658,367 is referred to.
Patent GB-677378-A (GB)
Title: Improvements in or relating to manufacture of ammunition
Inventor: OLSEN FREDRICH
IPC: F42B3/198
Filed: 1950-07-10
Abstract: 677,378. Primers. OLIN INDUSTRIES, Inc. July 10, 1950. No. 17196/50. Classes 9 (i) and 9 (ii). [Also in Group XIII] Primer cups filled with moist primer composition are placed in trays 14 as they emerge from the filling apparatus. The trays are placed on a conveyer belt 6 which moves through an enclosure 1 where the trays pass under a hood 10 provided with a vent 11 in which may be an exhaust fan (not shown). The loaded trays pass under two series of lamps 12, 13 suspended within the enclosure. The lamps 12 are 250 watt infra-red lamps arranged in three rows, each succeeding row being further from the belt than the preceding row, so that as the primers travel through the enclosure they are subjected to a diminishing intensity of radiation. The lamps 13 are commercial infra-red lamps with gold-plated reflectors arranged with each succeeding row at a greater elevation than its predecessor. The trays 14 may be of wood, metal, asbestos or a moulded composition not affected by exposure to infra-red radiatiou. The speed of the belt is regulated according to the temperatures in the enclosure and the nature of the priming composition. The trays after passing through the enclosure 1 may be carried through a compartment 16 where air is circulated to cool the primers before the trays are removed from the belt and passed to primerinserting machines. Access to the enclosure 1 may be through openings 17 provided with closures 18. The primary composition may be TNT 5 parts, antimony sulphide 17 parts, potassium chlorate 53 parts, lead sulphocyanide 25 parts, gum 0.2 parts, all parts being by weight. Using this composition with a 9-12 per cent moisture content in .30 calibre primers, the lamps 12 were adjusted to raise the temperature to 75 ‹C and the lamps 13 adjusted to maintain this temperature. The primers were exposed to the radiation for 3 minutes and were then sufficiently dry to pass the drop test. An alternative composition given is diazodinitrophenol 15 parts, barium nitrate 35 parts, tetrazene 3 parts, antimony sulphide 17 parts, lead peroxide 20 parts, calcium silicide 10 parts, gum 0.2 parts, all parts being by weight. This was dried at a temperature of 70‹C the primers being exposed to the radiation for 20 minutes.
Patent GB-595529-A (GB)
Title: Improvements in retractable landing gears for aircraft
IPC: B64C25/12
Filed: 1945-07-05
Abstract: 595,529. Claw clutches. OLAER PATENT CO., and COMPAGNIE GENERALE POUR L'EQUIPEMENT AERONAUTIQUE. July 5, 1945, No. 17241. Convention date, Aug. 25, 1943. [Class 80(ii)] [Also in Group XXXIII] In engaging a clutch for connecting a pulley 5 to an aircraft landing wheel 1 in retracting the undercarriage (see Group XXXIII), the pulley 5 is moved axially so that teeth 13 on the pulley engage with teeth 12 on the wheel 1, by an operating lever 16 integral with a sleeve 14 on which the pulley is freely mounted. Rotation of the lever 16 causes the sleeve 14 to move axially as a result of its threaded engagement 15 with a fixed sleeve 18 and thus move the pulley 5 to engage the clutch. Release is obtained by springs 21 engaging a friction ring 19 having driving projections 20 entering apertures 22 in the pulley 5.
Patent GB-1245178-A (GB)
Title: Automobile-latch push-button mechanisms
Inventor: GREENLAND RALPH
IPC: E05B65/26
Filed: 1969-04-02
Abstract: 1,245,178. Push button mechanisms. GENERAL MOTORS Ltd. 19 March, 1970 [2 April, 1969], No. 17297/69. Heading E2A. An automobile-latch push-button mechanism comprises a housing forming part of a door handle 2 for example and having a non- circular bore 4 therein, and a push-button 1 slidably mounted in the bore 4 and having an off-centre projection 11. An integral undercut guide 8, formed on the push-button 1, fits within an under cut channel 9 formed in the bore 4; alternatively the push button 1 may be provided with an undercut channel and, the housing may be provided with an undercut guide. In use the pressing of the pushbutton 1 moves the projection 11 to actuate a latch (not shown); a spring 5 being provided to return the push-button. A key-operable lock cylinder 6 is provided in a central bore 7 of the push-button 1.
Patent GB-764318-A (GB)
Title: Manufacture of compounds of the steroid series with oxygen in 11-position
IPC: C07J75/00
Filed: 1951-12-20
Abstract: The invention comprises steroids unsubstituted in the 14-position and containing in the 7- and 11-positions hydroxy or oxo groups, and the preparation thereof by treating a monoepoxide derived from a 14 - unsubstituted D 7 : 8, 9 : 11-steroid with an inorganic acid, e.g. sulphuric acid, to produce a D 8 : 9-7 : 11-dihydroxy steroid, which if desired is reacted with an oxidizing agent, e.g. chromic acid, t-butyl chromate, permanganate, perbenzoic acid, monoperphthalic acid or hydrogen peroxide, to produce a D 8 : 9- or 8 : 9-oxido-7 : 11-diketo-, 8 : 9-oxido-7 : 11-dihydroxy- or -11-hydroxy-7-keto-, or D 8 : 9-11-hydroxy-7-keto steroid, the 8 : 9-double bond or 8 : 9-oxido group in which may, if desired, be reduced by means of catalytically activated or nascent hydrogen.  Examples describe the use of the following starting materials: D 7 : 8, 22 : 23 - 3b  - acetoxy - 9 : 11 - oxidoergostadiene, D 7 : 8 - 3b  : 20 - diacetoxy - 9 : 11 - oxidoallopregnene, D 7 : 8, 22 : 23 - 3b  - acetoxy - 9 : 11 - oxidostigmastadiene, D 9 : 11-3a  - acetoxy - 7 : 8 - oxidocholenic acid methyl ester, D 7 : 8 - 3b  : 17b  - diacetoxy - 9 : 11 - oxidoandiostene, and D 7 : 8-3b -acetoxy- or -benzoxy-9 : 11-oxidocholestene.
Patent GB-515841-A (GB)
Title: Improvements in and relating to toy electric vehicles
IPC: A63H30/02
Filed: 1938-06-10
Abstract: 515,841. Toy electric railways. MARX & CO., Ltd. L. (Mark & Co.,. Inc., L.). June 10, 1938, No. 17337. [Class 132 (iii)] An electrically operated toy train is provided with a reversing switch, a solenoid for operating it responsive to a small holding current inadequate to drive the motor, a switch operable by voice or air current connected between the power source and the track whereby the train may be reversed by speech directed at the switch, and a manually operable switch for starting and stopping the train. The voice acting on diaphragm 106 of a control tower, Fig. 2, momentarily opens contacts 102, 104 to break the circuit through relay 16 carried by the locomotive, the core 20 of which falls and on reestablishment of the circuit rises so that the freely dependent arm 22 switches the tumbler 18 to the alternative position to reverse the locomotive. Operation of lever 14 opens contacts 116, 118 to stop the locomotive, a small holding current through resistance 132 maintaining relay 16 energized, so that no reversal takes place when the circuit is again closed. A transformer S for varying the potential and an overload circuit breaker O with a restoring button are included in the circuit.
Patent GB-1293737-A (GB)
Title: Improvements in or relating to electromagnetic energy radiating apparatus
Inventor: ROSS GERALD FRED
IPC: H01Q9/00
Filed: 1971-05-27
Abstract: 1293737 Aerials; generating oscillations SPERRY RAND CORP 27 May 1971 [15 June 1970] 17369/71 Headings H3B and H4A A high frequency impulse is directionally radiated from a balanced horn antenna 3, Fig. 4, forming part of and terminating a balanced strip transmission line 14, 14a, each time the other end of the line is bridged by a switch 23 through resistors r/2, the line being charged through resistors R/2 from a voltage source 21. The switch may be an electromagneticallycontrolled mercury-wetted reed which is operated from a pulse generator 24 or modulated pulse source. Closure of the switch causes a negative voltage wave to travel along the line to the radiating antenna, the reflected wave being absorbed by resistors r/2 which together equal the characteristic impedance of the line. The transmission line is shown in Fig. 1 and comprises parallel strips 4, 4a, and a matched balanced horn portion 3 consisting of diverging planar members 2, 2a terminated by either flat or curved ends 8, 8a. The members are either spaced by dielectric spacers 10, 10a or an air formed dielectric filling may be used. In a modification, Fig. 9, the parallel portion of the transmission line is screened by a conductive sleeve 30 held at mid-potential by a capacitor voltage divider 33, 34, 33a, 34a. In a further modification, Fig. 14, the switch 23 is replaced by one or more avalanche transistors 50, 50a, the arrangement being then free-running.
Patent GB-1380154-A (GB)
Title: Gas burners especially for domestic appliances
IPC: F23D14/62
Filed: 1972-04-14
Abstract: 1380154 Gas burners ETABS SOURDILLON MATRICAGE ET ROBINETTERIE DE PRECISION 14 April 1972 17386/72 Heading F4T A gas burner for domestic appliances is supplied from an injector 10, wherein to ensure the correct air/gas ratio for the various flowrates of gas from the injector, the injector delivers into two successive chambers 9, 13 each chamber having orifices 11, 14 for introducing air into the gas flow, the second chamber 13 being larger than the first chamber 9, the air inlet orifices 11 having a total flow area which is large compared with that of the gas inlet to the chamber, and the orifices 14 not admitting air when the gas flow rate is below a predetermined value, the two sets of orifices 11, 14 being such that the final air to gas mixture is constant both above and below the predetermined gas flow rate value. As shown, gas flows through the passage 8 and emerges from the injector 10 into the first chamber 9 where air is induced to join the gas stream through the orifices 11 which may be adjustable. The mixture then flows into a second chamber constituted by a divergent passage (12) in a sleeve 13 which has a plurality of slots in the sleeve. When the rate of flow is very low air is drawn in to join the gas in chamber 9 but in the second chamber (12) no more air is induced due to the rate of flow not being great enough to overcome the load losses caused by the slots. At higher flow rates more air is induced to maintain the required air/gas ratio. The mixture flows from the second chamber into a central passage 2 which flares outwardly to the distributing chamber 3 the mixture escaping through orifices 6 around the burner. At very high gas flow rates extra air may be induced through the gaps 17 between the sleeve 13 and the wall 1 of the passage 2.
Patent GB-149832-A (GB)
Title: Improvements in fastening devices for bolts and the like
IPC: F16B21/12
Filed: 1919-07-11
Abstract: 149,832. Corrie, I. V. July 11, 1919. Locking nuts.-A device for locking a nut 6 on the wheel-axle 4 of a motorvehicle &c. comprises a bolt or spindle 1 slotted at its end to receive a finger 2 carried by a pin 3 arranged eccentrically along the length of the finger. The device is passed through a hole in the nut 6, and the finger 2 then turned at rightangles to the spindle 1, a coil-spring 7 and washer 8 holding it in this position. The Provisional Specification also states that the device may be used for the rapid connexion of side-cars to motor-cycles, and that accidental detachment of nuts &c. from bolts is prevented by mounting a pivoted finger on the end of the bolt.
Patent GB-292150-A (GB)
IPC: F02C5/08
Filed: 1928-06-15
Abstract: 292,150. Akt.-Ges. Brown, Boveri, et Cie. June 15,1927, [Convention date]. Motor power plant.-In a plant in which the exhaust gases from one or more two-stroke internal-combustion engines 1 perform work in a turbine 2, the pistons 4, 5 of the engine 1 are integral with the pistons 6, 7 of an air compressor which is supplied with air from an initial compressor 9 driven independently of the engine 1 and delivers the air to the engine cylinders, the pressure and temperature of the driving medium being controlled by variation of the share of the total compression performed by the initial compressor. The regular movement of the pistons 4 - - 7 may be ensured by a cam 8 on a shaft carrying a fly-wheel or driven by a separate motor. The initial compressor 9 may be a centrifugal blower driven by the turbine, by a separate motor, or by a portion of the exhaust gases from the engine 1, and the turbine 2 drives an electric generator 3. In order to return a portion of the engine charge to a scavenging or charging air container or other container at the beginning of the compression stroke, a controlled valve connected to a port in the cylinder wall may be opened for a short time. Specifications 241,918 and 286,141, [both in Class 7 (i), Combustionproduct &c. engines], are referred to. The Specification as open to inspection under Sect. 91 (3) (a) states also that the shaft of the cam 8 may drive auxiliary machines, and that an inlet valve on the engine cylinder may remain open during the first part of the compression stroke. This subject-matter does not appear in the Specification as accepted.
Patent GB-735940-A (GB)
Title: Improvements in or relating to harmonic generators
Inventor: LAWTON JOHN
IPC: H03B19/16
Filed: 1952-07-10
Abstract: 735,940. Changing frequency. BRITISH TELECOMMUNICATIONS RESEARCH, Ltd. July 8, 1953 [July 10, 1952], No. 17449/52. Class 38 (2). A harmonic generator suitable for use in telecommunication systems may comprise a source of constant substantially sinusoidal voltage which feeds a capacitor CS in series with a rectifier W1 biased from a D.C. source, the harmonic output being derived at P1, P2 from across a small inductor LS shunted by rectifier W2 connected in opposition to W1 whereby the stepped current waveform produced is differentiated. Curves (i), (ii) of Fig. 1B show respectively the capacitor voltage and current, which would be sine waves displaced by 90 degrees (but for circuit resistance) but for rectifier W1 which at A prevents the current rising above the value set by its bias and keeps it constant until B. At B the source voltage becomes greater than the capacitor volts and the current reverses sharply to take up the value it would have had but for rectifier W1. The CS, LS circuit may be made resonant. LS is kept small to provide narrow pulses and a wide range of harmonics, and rectifier W2 damps out all but the first half period of the damped oscillations. The A.C. supply may be derived through a pentode arranged as a cathode follower, the rectifier may be combined in a double diode, Fig. 4 (not shown). In an alternative arrangement a source of constant sinusoidal current is connected in parallel with an inductor and a suitably biased rectifier, the harmonic output being obtained by differentiating the stepped voltage wave form produced, Fig. 2 (not shown).
Patent GB-1528238-A (GB)
Title: Vehicle safety belt system having tension-relieving apparatus
IPC: B60R22/19
Filed: 1976-04-29
Abstract: 1528238 Safety belt ALLIED CHEMICAL CORP 29 April 1976 [2 May 1975] 17543/76 Heading A3V A vehicle safety belt system includes a retractor 3 and a shoulder belt 2 passing partially around a support 6 mounted e.g. rotatably in sidewalls 16, 18 of a tensionrelieving apparatus. When the lower back of occupant 36 contacts seat back 34, a pressure switch provides an electric signal for solenoid 12 which via bracket 28 moves clamp 20 to press belt 2 against support 6 to prevent the belt moving. This happens before the occupant's upper back reaches the seat back when he sits down thus a small amount of slack is produced in belt 2. In Figure 3 (not shown) plunger (30) of the solenoid directly contacts clamp 20.