baber/WOPTO huggingface dataset:
Patent GB-796912-A (GB)
Title: Production of polymerisation products from olefinically unsaturated hydrocarbons
IPC: C08F136/04
Filed: 1956-07-17
Abstract: A catalyst for the polymerization of olefinically unsaturated hydrocarbons comprises a mixture of an alkenyl compound of a Group IA, IIA or IIIB metal and a compound of a Group IVA, VA or VIA metal. Specified alkenyl compounds are those of the metals lithium, sodium, potassium, beryllium, magnesium, calcium, aluminium, or gallium, e.g. allyl sodium, pentenyl potassium, isobutenyl sodium, tributenyl aluminium, allyl magnesium bromide and vinyl magnesium bromide. Specified Groups IV, V and VI metal compounds are titanium tetrachloride and trichloride, zirconium tetrabromide, the halides of hafnium, tetraethoxytitanate, vanadium arychloride or tetrachloride, halides of niobium and tantalum, chromyl chloride, the halides of molybdenum, tungsten and uranium and compounds of general formula MXp where M is the metal p the valency of the metal and X is halogen, -CN, -SCN, -OR or O=CR-CH2-CO= R1 (R being cycloalkyl, aryl, or alkyl and R1 being alkylene).ALSO:Olefinically unsaturated hydrocarbons are polymerized using as catalyst a mixture of an alkenyl compound of a Group IA, 2A or 3B metal and a compound of a Group 4A, 5A or 6A metal.  Specified hydrocarbons are ethylene, propylene, n-butylene, isobutylene, and mixtures thereof, butadiene, methylbutadienes, and styrene. Specified alkenyl compounds are those of the metals lithium, sodium, potassium, beryllium, magnesium, calcium, aluminium, or gallium, e.g. allyl sodium, pentenyl potassium, isobutenyl sodium, tributenyl aluminium, alkyl magnesium chloride and vinyl magnesium bromide.  Specified Groups 4, 5 or 6 metal compounds are titanium-tetrachloride, titanium trichloride, zirconium tetrabromide, the halides of hafnium, tetraethoxy titanate, vanadium oxychloride, vanadium tetrachloride, halides of niobium and tantalum, chromyl chloride, the halides of molybdenum, tungsten and uranium, and compounds of general formula MXp where M is the metal X is halogen, -CN, -SCN, -OR or O=CR-CH2-CO=R (R is cycloalkyl, aryl or alkyl and R1 is alkylene) and p is the valency of the metal.  The process may be carried out continuously or not, in the presence of pentane, hexane, octane, Diesel oil or Diesel oil fractions, gasoline or gasoline fractions, cyclohexane, decaline, benzene, toluene or similar liquids.  The two components of the catalyst may be brought together in the presence of the compound to be polymerized which is preferably purified by leading it over reduced copper, silica gel, or solid alkali hydroxide.  The polymerization may take place at 0 DEG to 200 DEG  C. and between normal and 300 atmospheres.
Patent GB-803378-A (GB)
Title: Press
IPC: B30B15/18
Filed: 1955-02-17
Abstract: 803,378. Hydraulic presses. MULLER, E. Feb. 17, 1955, No. 22075/53. Drawings to Specification. Class 69 (2). In an hydraulic press having a continuouslyoperating pressing member, the speed of the pressing member is varied so that the time during which the pressing member is in motion from the position of separation from the workpiece through outer dead centre and back to the position of contact, is substantially greater than the time for the remainder of the reciprocation. The speed is varied by introducing a throttle into the hydraulic supply line by means of a time relay switch. The Specification states that the pressing member may also be stopped for a period of time by means of an adjustable time limit relay.
Patent GB-1039258-A (GB)
Title: Improvements in and relating to toy roadway lay-outs
IPC: A63H18/14
Filed: 1965-05-25
Abstract: 1, 039, 258. Toy vehicles tracts. A. EINFALT, and J. EINFALT [trading as Gebr EINFALT BLECHSPIELWARENFABRIK]. May 25, 1965 [Feb. 6, 1965], No. 22125/65. Heading A6S. In a toy roadway in which vehicles travel by force of gravity from a high position to a low position the vehicles are selectively switched into alternative routes on their way down. The vehicles are driven by a notched belt a to the top, and the vehicles are provided with grab hooks which overlap the edge of the tracks. Part 8 of such edge may be lowered by a lever k pivoted at i, so that the vehicle is not pulled into track d by its grab hook, but follows on into track c.
Patent GB-616714-A (GB)
Title: Improvements in or relating to stamps or drop hammers
IPC: B21J13/04
Filed: 1946-07-25
Abstract: 616,714. Power hammers. MASSEY, Ltd., B. & S., PICKWORTH, P. C. N., and FOSTER, J. July 25, 1946, No. 22131. [Class 83 (iv)] In a drop hammer in which the anvil block 10 is formed on its upper surface with machined seatings 11 stepped to provide thrust shoulders 12 and each standard 13 is formed with corresponding seating surfaces 14 stepped to provide a thrust shoulder 15, the standards also have lugs 17, 18 adapted to embrace the front and rear of the anvil block, whereby the standards are keyed to the anvil for the full length of their respective seatings on both front and rear sides. Renewable steel wearing plates are inserted between the thrust shoulders 12 and 15, and between adjacent vertical standard and anvil surfaces for taking up wear and restoring alignment.
Patent GB-318101-A (GB)
Title: Improvements in and relating to devices for packing eggs and like articles capable of rolling
IPC: B65B23/02
Filed: 1929-07-18
Abstract: 318,101. McEllin, T. J. Aug. 27, 1928, [Convention date]. Packeting eggs in boxes.-Articles capable of rolling, such as eggs, roll from a fixed track 35 on to a series of trap doors 1 arranged at a slight inclination from left to right. The doors are pivoted on a rod 6 between guides 2, and are normally held in the position shown in Fig. 3 by a counterweight 8 and a vertical locking memher 20. At suitable moments, a cam 15 moves an arm 18, and with it the member 20, into the position shown in broken lines. The member 20 then registers with an aperture in the door, which falls into an inclined position and delivers the egg, through a guide 25, into one of a series of divisions 34 in a sectional box 33. The cams 15 are so arranged on the shaft 14 that the doors are unlocked and tilted consecutively, the first egg rolling over all the doors on to the last, which tilts and packs it. The parts are then reset by the counterweights 8, 21. When a row has been dealt with, an escapement device allows the platform 31 to move along the rails 30 so as to bring an empty row of divisions beneath the guide 25. The platform may be moved by a spring, or the rails 30 set at an incline.
Patent GB-297934-A (GB)
Title: Improvements relating to devices for closing electrical circuits at intervals
IPC: H04M3/12
Filed: 1927-08-23
Abstract: 297,934. Siemens Bros. & Co., Ltd., and Patterson, W. G. Aug. 23, 1927. Automatic exchange systems.-Apparatus for periodically closing a circuit for a definite period for use, for example, in connection with delayed alarms, comprises a switch which makes alternate steps under the direct control of a clockoperated interrupter and under joint control of this interrupter and self interrupting contacts. A tandem arrangement of such switches is used for giving long intervals. In the system described ground is periodically connected for one second to the wires S, Z, S<1>, Z', S<2>, Z<2>, with intervals of 30 seconds, 2 1/5 and 4¢ minutes respectively between the grounding of the wires in each pair. An alarm is given if the apparatus fails. Operation of system. Relay RP follows the interrupter AC which closes for a second every 6 seconds. When RP pulls up, switch A is in an even position and moves by self-interruption to the next position where it finds a circuit independent of its self-interrupting contacts and waits until the end of the impulse. In its 5th position, wiper A energizes RP<1> which controls the switch B which moves by self-interruption to an odd position and waits there until the end of the impulse. The wires S, Z &c. are connected to odd terminals and are thus grounded for substantially the make-period of the interrupter. A circuit is made over A<3> in its 7th position and B<4> in the positions next beyond those in which the wires Z', Z<2> are grounded, for RP<1>, which causes the switch to move into position for starting a new cycle without waiting for a full revolution of A. Alarm arrangements. RP on operating locks up in series with PC which connects SA to ground pulses on AS. SA locks under control of PC, and connects ZA to ground pulses on AZ. The locking circuit of RP is immediately opened by PF which is energized in the odd positions of switch A and which holds PC until the end of the interrupter impulse. In normal operation therefore PC is operated only for a short-time longer than the make period of AC. If, however, the switch sticks, PC and SA remain operated and after an interval ZA gives an alarm. ZA is operated in a similar manner if switch B sticks, lamps AL, BL identifying the faulty switch. The Provisional Specification mentions the application of the invention to metering.
Patent GB-1102813-A (GB)
Title: Improvements in or relating to gyroscopes
IPC: G01C19/02
Filed: 1964-05-29
Abstract: 1,102,813. Gyroscopic apparatus. J. GUTKOWSKI. May 25, 1965 [May 29, 1964], No. 22207/64. Heading G1C. A gyroscope comprises a spherical rotor 2 mounted by means of a fluid bearing in a main body 1, three equiangularly spaced pick-offs being provided to detect any angular deviation between the rotor spin axis and a reference line in the support. The gyroscope shown in Fig. 1 may be used to define a vertical reference line and the rotor is provided with a central tapering through hole 14 whose axis is coincident with the spin axis, the centre of gravity of the rotor lying below its geometrical centre to keep the spin axis vertical. The rotor 2 may be of copper or silver or of composite construction to combine high electrical conductivity with high movement of inertia. A stack of laminations 7 with for example three windings as 8, 9 are provided in the body 1 to form a poly-phase stator winding for the rotor 2. Fluid under pressure, either gas or liquid, is supplied to an annular channel 4 by way of an inlet 3. This fluid forms the bearing for the rotor and leaves by way of an annular channel 5 and return 6. Three equiangularly spaced orifices, as 35 are situated in the body 1 on the circumference of the circle defined by the upper end of the hole 14. Fluid under pressure is supplied to a port 16 and is fed to each of the three orifices by way of restrictors, as 20. Respective cavities, as 24, also communicate with the orifices, and with the gyroscope in use any deviation between the spin axis and the vertical line through the centre of the cavity containing the rotor, will be indicated by corresponding changes in the pressures in the cavities, as 24. These pressure changes may be utilized to slave the body 1 to the rotor. In alternative embodiments the spin axis may be horizontal and may be initially set by the use of electromagnets. The rotor may be provided with a reflecting recess and light from a lamp after reflection may be deflected to three equiangularly spaced photo-cells whose outputs again give a measure of the deviation between the rotor spin axis and a reference line in the body 1. In a further alternative a recess in the rotor may contain a radio-active substance and the pick-offs may be in the form of three equiangularly spaced radiation detectors. The gyroscope may be used to stabilize a platform or to control the direction of travel of a power driven vehicle.
Patent GB-405948-A (GB)
Title: Improvements in or relating to gas burners
IPC: F24C3/12
Filed: 1932-08-08
Abstract: 405,948. Operating gas valves. DAVIS, C. H., 43, Park Road, Teddington, Middlesex, and MYALL, C. D., 19 Branksome Road, Merton Park, London. Aug. 8, 1932, No. 22244. [Class 135.] In a gas burner in which a control member is actuated by the pressure thereon of a utensil, oven door or the like to open the gas inlet valve, movement of the control member 6 is transmitted to the valve 12 by means of a flexible member 9 extending within the burner tube 4. As shown, a closely wound helical spring 9 is adjustably connected to the member 6 and a tube 10, both slidably mounted in a pilot supply tube 3. The tube 10 engages the hollow stem 11 of the valve, through which gas passes to a pilot jet 8, and may be provided with air inlets 13. The valve is opened against the action of a spring 16 bearing against a preferably adjustable spider 15. The tube 4 may be connected directly to a main valve or cock and the valve 12 co-operate with an apertured partition in the tube. The valve 12 may be a mushroom valve or have an annular ridge co-operating with an annular outlet. When applied to burners with radial burner outlets, the head 7 of the member 6 may be adapted, when depressed, to rest on lugs at the open end of the burner to form the radial outlets. In a modification, the transmission member consists of a flexible tube, the tube 3 being dispensed with.
Patent GB-779688-A (GB)
Title: Pressure regulating valve arrangement
IPC: G05D16/10
Filed: 1955-08-03
Abstract: 779,688. Fluid-pressure servomotor-control systems. SOC. ALSACIENNE DE CONSTRUCTIONS MECANIQUES. Aug. 3, 1955 [Aug. 18, 1954], No. 22336/55. Class 135. A pressure regulating valve arrangement for holding the fluid-pressure in a circuit 1 between two limits and including pressure responsive control means 3, 20, 15 for a circuit pressure generating means 14 comprises a shuttle valve 41, 42 co-operating with two seats 5<SP>1</SP>, 62 of different cross-sections provided in a common chamber 24 communicating through one of the seats 6<SP>2</SP> with the circuit, to a low pressure zone, e.g. atmosphere at 9 through the other seat 51 and at 2 to the control means, a pressure responsive member 11 subject to the circuit pressure and operatively connected to the shuttle valve to urge it towards the smaller seat 5<SP>1</SP>, and elastic means 12 continuously urging the pressure responsive member against the circuit pressure, the cross-section of the pressure responsive member being greater than the sum of the cross-sections of the seats. It is shown mathematically that the difference between the pressure limits for the circuit may be made very small by making the area of the piston or diaphragm 11 greater than the sum of the areas of the seats. When the circuit pressure approaches its upper limiting value it depresses the piston 11 against tension spring 12 to close the valve 4<SP>1</SP> and open the valve 42 so that circuit pressure moves the control piston 18 to the right to open the switch 20 and stop the driving motor 15 and pump 14. When the circuit pressure approaches its lower limit the valve 4<SP>2</SP> is closed and the valve 4<SP>1</SP> opens to exhaust fluid pressure from the control piston to atmosphere so that the piston moves to the left and switches on the motor and pump. In another embodiment a single ball valve is provided in the chamber 24 co-operating with opposite seats.
Patent GB-939623-A (GB)
Title: A portable bracket device
IPC: A47G7/04
Filed: 1961-06-21
Abstract: 939,623. Posts jammed between opposed surfaces. J. B. FRAZELLE, R. F. LONG, and J. G. MOLEK. June 21, 1961, No. 22373/61. Class 20 (1). [Also in Group XIV] A post adapted to be jammed between opposed surfaces to support various articles by brackets 6 comprises telescoping tubes 2, 3 connected in adjusted position by the brackets 6 engaging registered holes 4 in both tubes and a spring extended telescoping end 21. The leg 7 of the bracket is bent to form a hook 12 which is first engaged in holes 4 and the end 14 of the other leg 8 is then engaged with further holes 4. To prevent relative rotation of the tubes and to align the apertures 4 a longitudinal seam in the outer tube is engaged with a slot or channel in the inner tube.
Patent GB-1180712-A (GB)
Title: Novel levo-1-n-butyl-2',6'-pipecoloxylidide and the Preparation Thereof
Inventor: LUDUENA FROILAN PINDARO
IPC: C07D211/60
Filed: 1968-05-10
Abstract: 1,180,712. Levo - -1 - n - Butyl - 2<SP>1</SP>,6<SP>1</SP> - pipecoloxylidide. STERLING DRUG Inc. 10 May, 1968 [18 May, 1967], No. 22420/68. Heading C2C. Novel levo - 1 - n - butyl - 2<SP>1</SP>,6<SP>1</SP>- pipecoloxylidide, free or substantially free from its optical antipode, and acid addition salts thereof are prepared (a) by reacting dl-2<SP>1</SP>,6<SP>1</SP>-pipecoloxylidide with O,O-dibenzoyl-d-tartaric acid to form a mixture of the diastereoisomeric O,O-dibenzoyl-d-tartrates, treating said mixture with boiling acetone, separating the acetone-insoluble dextro - 21,61 - pipecoloxylidide O,O - dibenzoyl - d-tartrate, isolating the levo-2<SP>1</SP>,6<SP>1</SP>-pipecoloxylidide O,O-dibenzoyl-d-tartrate from the acetone solution thereof, generating the levo-2<SP>1</SP>,6<SP>1</SP>- pipecoloxylidide base, e.g. with an inorganic base, from its O,O-dibenzoyl-d-tartrate and N- butylating said base, e.g. with n-butyraldehyde under catalytically hydrogenating conditions or with an n-butyl halide in the presence of an acid binding agent; or (b) by seeding an acetone or isopropanol solution of dl-1-n-butyl-2<SP>1</SP>,6<SP>1</SP>- pipecoloxylidide d-tartrate with dextro-1-n-butyl- 2<SP>1</SP>,6<SP>1</SP>-pipecoloxylidide d-tartrate, separating the resulting crystalline dextro-1-n-butyl-2<SP>1</SP>,6<SP>1</SP>-pipecoloxylidide d-tartrate, which may be hydrolysed to dextro-1-n-butyl-2<SP>1</SP>,6<SP>1</SP>-pipecoloxylidide, e.g. with aqueous ammonia, and either evaporating the acetone solution to yield levo-1-nbutyl - 2<SP>1</SP>,6<SP>1</SP> - pipecoloxylidide d - tartrate or treating the isopropanol filtrate with d-tartaric acid, seeding with levo-1-n-butyl-2<SP>1</SP>,6<SP>1</SP>-pipecoloxylidide d-bitartrate and separating the resulting crystalline levo-1-n-butyl-2<SP>1</SP>,6<SP>1</SP>-pipecoloxylidide d-bitartrate, with the further step of generating the levo-1-n-butyl-2<SP>1</SP>,6<SP>1</SP>-pipecoloxylidide base from its d-tartrate or d-bitartrate, e.g. with an inorganic base; followed optionally by converting the product to an acid addition salt thereof. Dextro-2<SP>1</SP>,6<SP>1</SP>-pipecoloxylidide is prepared by generating the free base from the O,O-dibenzoyld-tartrate prepared in (a) above, e.g. with an inorganic base, and may be N-butylated to give dextro-1-n-butyl-2<SP>1</SP>,6<SP>1</SP>-pipecoloxylidide. Levo - 1 - n - butyl - 2<SP>1</SP>,6<SP>1</SP> - pipecoloxylidide has longer acting local anaesthetic activity and is less toxic than its dextro-isomer and the dlform.
Patent GB-904926-A (GB)
Title: Improvements in or relating to sound absorbing assemblies
IPC: E04B1/84
Filed: 1960-06-27
Abstract: 904,926. Modifying acoustic properties of rooms. ECKEL, O. C. June 27, 1960 [July 27, 1959], No. 22428/60. Class 13. Two or more wedge-shaped bodies 10 of mineral wool, acetate wool or of other sound absorbent material are held in shape by openwork covers of wire mesh 24 or cloth and are secured to a supporting frame 30 by means of extensions of the covers beyond the sound absorbent bodies. The ridges 20 of the wedges are arranged alternately parallel and normal to the main axis of the supporting frame. Figs. 1, 2, 3 show the different arrangements of mounting extension in three wedges 32, 40, 46 used in the assembly of Fig. 4. Extensions 38, 42, 44 are bent at right-angles to the surface of the cover to engage the top of the support. Extensions 34, 48, 50 engage the sides or ends of the support.
Patent GB-721634-A (GB)
Title: Electromagnetic vibratory electric-circuit interrupters
Inventor: CURZON THOMAS
IPC: H01H50/76
Filed: 1952-09-08
Abstract: 721,634. Electromagnetic interrupters. C.A.V., Ltd. Aug. 10, 1953 [Sept. 8, 1952]. No. 22487/52. Class 38 (5). An interrupter adapted to operate satisfactorily over wide variations of voltage is provided with laminated damping springs m which are engaged by the fixed contact-carrying blade i due to impact of the moving contact g, when the amplitude of vibration exceeds a certain amount. The "fixed." contact j is mounted on a spring i which is also laminated to provide a certain amount of damping and which normally rests on an arm h with a forked end k. The moving contact g is mounted on a rigid arm f fixed to a blade spring c the free end of which rests on a block d and which carries the armature e.
Patent GB-1436381-A (GB)
Title: Card games
IPC: A63F1/00
Filed: 1973-05-11
Abstract: 1436381 Card game E E EDELMANN 11 May 1973 22566/73 Heading A6H A pack of cards for enabling data processing runs to be simulated, each card being substantially as shown. The markings b can be read from the back.
Patent GB-657900-A (GB)
Title: Improvements in or relating to control mechanism for change-speed gearing on motor vehicles
Filed: 1948-08-27
Abstract: 657,900. Change-speed control. SQUIRE, A. C. A. Aug. 27, 1948, Nos. 22579/48, 23796/48, 32229/48 and 7399/49. [Class 80(ii)] A steering-column-mounted shift-control for a three- or four-speeds and reverse gear on a motor vehicle, comprises the usual control-rod 15 parallel to the steering- column and having sliding and turning movements either of which may respectively select or execute a gear-shift. The rod 15 is slidable but not turnable in a bore in a pivot-bracket 14, which has an outer cylindrical surface bearing rotatably but not slidably, e.g. by a screw-threaded connection 16, in a fixed housing 10, and has lateral jaws 22 carrying a fulcrum-pin 23 passing through a slot in the hand-lever 21, the flattened and forked inner end of which is received in and pivoted to the slotted upper end of the control-rod 15 by a pin 24. Downward movement of the handlever 21 into the reverse plane is possible only after the lever 21 is retracted (or alternatively pushed inwards) against spring-resistance 29, to free a projection 27 on its end from a slot 28 in the pivotbracket 14. Rattle is prevented by an offset spring-plunger 25; by a sinuous bladespring or felt pad 18 in an axial gap in the pivot-bracket 14; and by a packing 17, which is also an oil-seal. In Figs. 6-9 (not shown), rotary location in gear and neutral positions is provided by a crimped annular blade-spring detent (or a spring-loaded plunger) arranged by adjacent notched shoulders on the pivot-bracket 14 and fixed housing 10. The pivot-bracket 14 may, as shown at 20, be slidably keyed to the control-rod 15, and the fixed housing 10 has a rubber-bush mounting 11 in the fixed steering-column bracket 12. A metal or plastic cover 31 is provided, and in Figs. 2' and 4 (not shown), the handle-pivot jaws 22 are formed in the cover which, in Fig. 2, is die-cast integral with the pivot-bracket and in Fig. 4 is brazed or welded to it. Specification 614,658 is referred to.
Patent GB-786226-A (GB)
Title: Improvements in or relating to glutamic acid derivatives and process of making the same
IPC: C07C271/06
Filed: 1955-08-05
Abstract: The invention comprises N-carboallyloxy-L-glutamic acids of the formula: <FORM:0786226/IV (b)/1> and N-carboallyloxy-L-glutamic acid anhydrides of the formula: <FORM:0786226/IV (b)/2> wherein R is hydrogen, phenyl or an alkyl group.  The compounds are prepared by reacting L-glutamic acid with allylchloroformate, phenallylchloroformate or an alkylallyl chloroformate respectively, and, if desired, converting the resultant acid into its corresponding anhydride, e.g. by treatment with acetic anhydride, eThe reaction with L-glutamic acid is preferably carried out in the presence of a magnesium oxide catalyst.  The N - carboallyloxy - L - glutamic acid anhydrides of the above formula may be treated with liquid ammonia to produce the corresponding N-carboallyloxy - L - glutamine.  The latter compound may be subsequently converted to glutamine or a salt thereof by any one of the following methods: (1) by treatment with a hydrogen halide under anhydrous conditions, e.g. treatment with HCl or HBr in acetic acid; (2) by treatment with metallic sodium and liquid ammonia; and (3) by treatment with hydrogen in presence of a hydrogenation catalyst, e.g. Pt, Pd, Rh and Ni.  The examples describe the preparation of L-glutamine, N-carboallyloxy-L - glutamic acid, N - carboallyloxy - L - glutamic anhydride, N-carboallyloxy-L-glutamine and the ammonium salt thereof. N-carbomethallyloxy - L - glutamic anhydride is also specified as a preferred compound.