baber/WOPTO huggingface dataset:
Patent GB-1187393-A (GB)
Title: Improvements in or relating to Piperidine Compounds
Inventor: BORREVANG POUL
IPC: C07D471/20
Filed: 1966-07-13
Abstract: 1,187,393. Spiro compounds. NOVO TERAPEUTISK LABORATORIUM A/S. 28 June, 1967 [13 July, 1966], No. 31393/66. Heading C2C. Novel, therapeutic compounds I (including salts thereof) in which Y represents a group of the Formula II or III wherein R 1  and R 2  signify hydrogen; nalkyl, iso-alkyl, alkenyl or alkynyl, which may carry halogen substituents; hydroxyalkyl, which may carry halogen substituents, or esters or ethers thereof; dialkylamino-alkyl; cycloalkyl, bicycloalkyl or aza-cycloalkyl which may all carry alkyl substituents; acyl ; carbamyl or substituted carbamyl where the substituents may be alkyl, cycloalkyl, aryl or arylsulphonyl, which substituents may be substituted by alkyl, alkoxy or halogen; or R 3 -X-, wherein -X- is a bivalent aliphatic and/or cycloaliphatic hydrocarbon radical with 1 to 8 carbons and which may carry halogen and hydroxy substituents, and R 3  means cycloalkyl, aryl or a heterocyclic radical with nitrogen or oxygen as hetero atoms, all of which may carry alkyl or alkoxy substituents, R 4  is hydrogen, alkyl, acyl, or aralkyl and R 6 , R 7 , R 8 , R 9 , R 10  and R 11  mean hydrogen, alkyl or aryl, with the addition that R 8  (or R 9 ) may together with R, or R 6  form an ethylene bridge (Z = -CH 2 -CH 2 -) are prepared: (i) by reacting an appropriate 4-piperidone (may contain the Z-bridge) with ammonia or an amine and a compound of formula R<SP>1</SP>NHR, wherein R is -OSO 2 OH or halogen and R<SP>1</SP> is hydrogen or alkyl; or (ii) by reacting an appropriate 4-imino-piperidine (may contain the Z-bridge) with the compound R<SP>1</SP>NHR; and thereafter, if desired, oxidizing a resulting unsubstituted diaziridine group to form a diazirine group and converting a resulting diazirine, an unsubstituted diaziridine or monosubstituted diaziridine group into a mono- or di-substituted diaziridine group. 1 - Methylpiperidine - 4 - benzylimme is obtained by the interaction of 1-methyl-4-piperidone and benzylamine.
Patent GB-1015379-A (GB)
Title: Improvements in or relating to homogenizing silos
IPC: B01F33/40
Filed: 1964-08-04
Abstract: 1,015,379. Agitating powder by gas currents. W HERMANNS. Aug. 4, 1964 [Aug. 2, 1963], No. 31480/64. Heading B1C. Apparatus for homogenizing powder comprises a cylindrical container 1, Fig. 3, having a bottom sloping to a central discharge outlet 4, the bottom being covered with air-permeable hoses 9 which are given a flattened crosssection by means of inserts (see Fig. 5, not shown) and are closed at one end and connected at their other ends to one or more peripheral air supply conduits 6 ; the hoses are grouped and the groups supplied simultaneously with air at different pressures or in succession with air of the same pressure. The hoses may be arranged in sector-shaped groups as shown in Fig. 2, or as chords of the container cross-section (see Fig. 4, not shown).
Patent GB-760555-A (GB)
Title: Improvements in or relating to equalizing networks
IPC: H04B3/14
Filed: 1954-11-01
Abstract: 760,555. Impedance networks. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Nov. 1, 1954 [Nov. 4, 1953], No. 31510/54. Class 40 (8). In an equalizing network 5 comprising shunted T-filters 7, 8, 9 each having inverse adjustable impedances in the series and shunt branches and each of the filters being terminated by adjustable resistors 37, 38, 39, to obtain a minimum " zero" damping, the network is made in the form of a two terminal network by using a second filter 8 or 9 as the identifying resistor (shown in broken lines) of a first filter 7 or 8. The identifying resistor of the last filter section 9 is constituted by a resistor 43. This arrangement reduces the control-range of the filters 8, 9. To avoid this disadvantage, series circuits 45, 46, Fig. 2, and parallel circuits 47, 48 are provided. The tuned frequencies of these circuits are such that they operate as switches to put out of operation the preceding T-filter for the frequency at which a T-filter is operative. If it is desired to equalize amplitude differences in the frequency intervals between the filters, further T-filters may be used, the filters being separated from one another by e.g. a line amplifier. The terminating resistors may comprise thermistors controlled by a pilot signal. In a further modification, Fig. 4, which provides a constant input impedance two sequences of T-filters 51 to 53 and 54 to 56 are used each constructed as twoterminal networks as described with reference to Figs. 1 and 2. The tuned frequencies of corresponding filters in each sequence are the same. To obtain a constant input impedance the adjustable terminating resistors of the T-filters are varied in an inverse sense by e.g. a mechanical linkage shown in broken lines.
Patent GB-165433-A (GB)
Title: Improvements in and relating to electric reactors
IPC: H01F38/08
Filed: 1920-11-08
Abstract: 165,433. Bergman, S. R. June 25, 1920, [Convention date]. Lighting and heating systems.-In electric welding and other circuits in which the current is adjustable through a considerable range and in which a reactance is provided to smooth out fluctuations in the current, means are provided for automatically varying the reactance with each adjustment of the current. In the arrangement shown in Fig. 1, current is supplied to the welding electrodes 5, 6 through a variable resistance 3 and a reactance coil 4. Adjustment of the resistance to vary the current varies automatically the inductance of the coil 4 by cutting in or out some of the turns.
Patent GB-1268712-A (GB)
Title: Method and apparatus for electrographic recording
Inventor: STARR DAVID ALDEN JR
IPC: G06K15/10
Filed: 1969-06-23
Abstract: 1,268,712. Shaping pulses. BURROUGHS CORP. 23 June, 1969, No. 31590/69. Heading H3T. [Also in Divisions B6 and G4] A pulse 90, Fig. 7, having sloping edges is produced from a pulse 50 having vertical edges by the use of Miller-type capacitive feedback Cx, 69, from an output transistor 81 to the base of a transistor 71. In operation the base of transistor 71 tends to fall with the leading edge of the input pulse 50. However, after the base of transistor 71 has fallen a little way, the feedback becomes operative retarding the subsequent fall of the base until transistor 71 (and also a transistor 75) saturates, whereupon the base continues to fall vertically. The output pulse 90 is transformer 83 coupled to a pinmatrix printing head, see Division G4.
Patent GB-1094662-A (GB)
Title: Electric distribution system
IPC: H01H33/12
Filed: 1966-07-15
Abstract: 1,094,662. Metal clad switchgear structures. WESTINGHOUSE ELECTRIC CORPORATION. July 15, 1966 [July 26, 1965], No. 31811/66. Heading H2B. A metal-clad compressed gas (SF 6 ) insulated switchgear includes an isolating switch unit 13 comprising a metal casing 24; two fixed conductors 25, 26 and a switch blade 31 for connecting them together; and disc-shaped insulators 62 at each end of the casing 24 to support the conductors 25, 26 which are connected to busbars 14<SP>1</SP> located in compressed gas filled casings 15<SP>1</SP>, the insulators 62 also serving as gas barriers between the housings. Each conductor 25, 26 carries a hollow voltage grading electrode 27, 28 which respectively house the movable contact blade 31 and a fixed contact 32. Blade 31 is driven by a motor (50) through an insulating shaft (47, 48) (Figs. 1, 2, not shown) and a rack and pinion 39, 38. The casing 24 also carries earthing contact blades 55, 58 and has an observation window (81) (Fig. 1, not shown). The switchgear includes bus conductors (14) in compressed-gas-filled casings (15) and supported by disc insulators (23). Modified isolating switches (11) (Fig. 2, not shown) in which the fixed contact is mounted on a bushing (77) serve to connect the bus conductors to gasblast circuit breakers (12). The isolating switch casings 24 are given shaped ends 76 and the bus conductors are connected together by flexible conductors (75) to allow for expansion. In a modification (Fig. 4, not shown) auxiliary snap-acting contacts (87-89) are provided.
Patent GB-520900-A (GB)
Title: Improvements in or relating to knitting machines and to loop transferring needles for use therein
IPC: D04B9/06
Filed: 1938-11-03
Abstract: 520,900. Knitting. HOLMES, H. H., WIDDOWSON, A. H., and WILDT & CO., Ltd. Nov. 3, 1938, Nos. 31863/38 and 8642/39. [Class 74 (ii)] Relates to needles for transferring loops from one bed to another of circular or flat machines. The needle stem 4 is twisted laterally so as to provide a laterally widened or spread portion 8 which extends equally on opposite sides of the stem. When a loop is stretched across the portion 8, the rear l<SP>1</SP> of the loop assumes an open or square formation which enables the loop to be penetrated by a receiving needles. The stem is also reduced at c to make it laterally resilient so that the needle can be readily deflected. A deflector cam may be placed overhead so as to be engaged by the hooks 31 when the needles are pushed up far enough. The needle deflecting means described in Specification 520,417 may be used instead. Fig. 7, shows an arrangement with two deflector cams 21, 22 for fine gauge machines. The odd needles are engaged by one cam and the even by the other. The cams are pivoted about pins 28 and are held against adjusting screws 32 by springs.
Patent GB-936840-A (GB)
Title: Electro-erosion machine tools
IPC: B23H3/02
Filed: 1961-09-05
Abstract: 936,840. Electrolytic erosion machine tools. GENERAL MOTORS CORPORATION. Sept. 5, 1961 [Sept. 20, 1960], No. 31886/61. Class 41. [Also in Group XXXV] An electro-erosion machine tool for electrolytically eroding material from a conductive workpiece immersed in an electrolyte comprises a cutting tool to be spaced from the workpiece, a control system for moving the tool and the workpiece together at a constant rate and a further control system for maintaining constant the voltage across the gap between tool andworkpiece. As shown, the workpiece 12 is located in a container 14 filled with electrolyte 16 and a servomotor 24 feeds the cutting tool 10 towards the workpiece at a constant rate in response to the output signal from a servo-amplifier 60 having as inputs a reference signal, determined by the position of a tap 70 on a rheostat 68 associated with a voltage source 66, and a feedback signal from a tacho-generator 64 driven by the servomotor 24. The gap between workpiece and tool is periodically reset by a circuit arrangement including a timer 86, a trigger 88 and a counter 90. At timed intervals cutting power is removed from the gap and the tool is initially fed rapidly towards the workpiece 12, then slowly, and finally stopped when contact is made; the cutting tool is then rapidly withdrawn a predetermined distance and the cutting process re-started. The gap voltage is determined by the position of an adjustable tap 36 on a rheostat 32 controlling the output of a D.C. source 30. The gap voltage is applied to a servo-amplifier 52 and is there compared with a reference voltage from a source 56; any variation develops an output error signal which is applied over a magnetic amplifier 58 to a servomotor 44 which changes the setting of the rheostat 32 in a corrective manner whereby the gap voltage is maintained constant at the reference voltage value. Safety devices to interrupt the cutting process when the tool contacts the workpiece with more than a certain force and when the chemical composition of the electrolyte departs from a predetermined norm may be included in the control circuit (Fig. 2, not shown).
Patent GB-1318477-A (GB)
Title: Process and catalyst for treatment of exhaust gases
IPC: B01D53/94
Filed: 1971-07-07
Abstract: 1318477 Exhaust gas catalysts CHEMICAL CONSTRUCTION CORP 7 July 1971 [17 July 1970 31906/71 Heading B1E Catalysts comprise copper, 5.0-12.0 wt. % as CuO, and cobalt, 0.5-4.0 wt % as Co 2 O 3 , deposited on α-Al 2 O 3 . Both active metals may be partially reduced and 0.5-2 wt. % MnO 2  may also be present.
Patent GB-392567-A (GB)
Title: Improvements in and relating to methods and apparatus for bringing into step two electric oscillations
IPC: H04B1/30
Filed: 1931-11-18
Abstract: 392,567. Wireless signalling. REGNAULD DE BELLESCIZE, H. J. J. M. DE, 47, Boulevard de la Seine, Neuilly.sur- Seine, France. Nov. 18, 1931, No. 31956. Convention date, Nov. 19, 1930. [Class 40 (v).] To keep a constant phase difference between two oscillators, they are combined in a detector 5 to produce a current or other physical quantity which is proportional to the projection of the vector representing one of the oscillations on the vector representing the other and is selected by a device 11, 12 responsive only to very low frequencies. Incoming signals are applied through a transformer 2 to one grid 3 of the detecting-valve 5 and local oscillations from a valve 6 are applied to a second grid 4. The difference frequency, if any, is separated by the filter 11, 12 and impressed on a resistance 10. The potential of the grid 18 of a valve 9 is thus varied according to the difference frequency, and the valve produces a variable damping effect on an oscillatory circuit 7, 8 to vary slightly the local frequency and bring it into synchronism with the incoming carrier. The modulating signals are separated by a filter 15, 16 and applied to telephones 14. According to a modification, Fig. 3 (not shown), the valve 9 is omitted and the potential of the grid of the valve 6 is varied. Interference preventing. Owing to the probability of parasitics being out of phase, such disturbances are on the average reduced in relative amplitude #2 times. By repeating the above process at the frequency of the modulating signals the average relative ampli. tude of disturbances is reduced by one half. The Specification as open to inspection under Sect. 91 describes also diplex signalling. Diplex transmitter, Fig. 5 (Cancelled). Oscillations from an alternator 35 are amplified by a valve 36, coupled to valve 38, 42 by a transformer 41 and a resistance 37 respectively to produce two oscillations of the same frequency but approximately <#>/2 out of phase. These oscillations are modulated separately at 40, 44. Diplex receiver, Fig. 6 (Cancelled). A local oscillator 6 is synchronized as described above and the oscillations are communicated to valves 48, 51 in receivers 72, 73 respectively. They are then passed to the grids 61, 74 of valves 54, 64 through phase changes 49, 50,52, 53, which are so adjusted that each receiver eliminates one of the phase-differentiated carriers received in the transformer 2. The subject-matter relating to diplex signalling does not appear in the Specification as accepted.
Patent GB-427755-A (GB)
Title: Improvements in and relating to electric synchronous motors
IPC: H02K19/06
Filed: 1933-11-16
Abstract: 427,755. Alternating-current motors. FERRANTI, Ltd., and TAYLOR, M. K., Hollinwood, Lancashire. Nov. 16, 1933, No. 31964. [Class 35] Motors with unwound iron armatures.-The stator of a synchronous motor has at least one pole-shoe carried solely by a resilient member to enable it to move in either direction relatively to the associated electromagnet pole. In the form shown iron dust may be inserted in the gaps between the poles of the fixed core f and the movable pole - shoes g, h, which are mounted on spring strips j, k and connected by a link n. The pole - shoes are notched to correspond to the spacing of the teeth on the rotor d. In a modified form, a second electromagnet or a permanent magnet is arranged with one pole near the rotor and the other close to or touching the main magnet. The motor winding may also be supplied with continuous current.
Patent GB-1165272-A (GB)
Title: Resonant Transfer Switching Circuits
IPC: H04J3/20
Filed: 1967-07-12
Abstract: 1,165,272. Automatic exchange systems; multiplex pulse signalling; resonant transfer. INTERNATIONAL BUSINESS MACHINES CORPORATION. 12 July, 1967 [1 Nov., 1966], No. 31977/67. Headings H4K, H4L and H4R. Resonant transfer is effected between filters of different bandwidths. Transfer may be effected between each of a number of narrow band filters and a wide band filter to effect time division multiplexing by resonant transfer. The filters may be band pass filter and/or low pass filters. Mathematic theory is given showing that efficient transfer may be effected between filters of unequal bandwidth provided each bandwidth is an integral multiple of the sampling frequency and provided the high edge of each pass band is an integral multiple of its bandwidth. For transfer between two such filters the input response of the output filter to a unit impulse is shown in the Figure. The voltage passes from a positive value through zero at periodic intervals T<SP>1</SP>, 2T<SP>1</SP> &c., the entire waveform occurring within a single sampling period. The total waveform for message transfer between these filters similarly passes through zero at these intervals. If transfer from other input filters is effected sequentially into the output filter at successive intervals T<SP>1</SP> the resulting waveform will at that moment (time slot) to a value derived from the corresponding input filter. Thus the output of the output filter is a continuous waveform representative at different time slots of the input from a corresponding input filter, and thus of a corresponding channel. The multiplex waveform may be split into separate channels in a similar manner. The multiplex waveform may be sampled, transmitted in digital form and converted back for separation.
Patent GB-341554-A (GB)
Title: Improvements in the manufacture of indole derivatives
IPC: C07D209/08
Filed: 1929-10-22
Abstract: Indole or a simple derivative thereof is alkylated in the pyrrole ring by treatment with an alcohol in the presence of a hydrogen halide.  In examples: (I) methylketol (2-methylindole) is treated with methyl alcohol containing anhydrous hydrochloric acid yielding 2 : 3-dimethylindole and, as a byeproduct, 1 : 3 : 3 - trimethyl - 2 - methyleneindoline; (2) 2 : 3-dimethylindole similarly yields 1 : 3 : 3 - trimethyl - 2 - methyleneindoline; (3) as example (1) but using aqueous instead of anhydrous hydrochloric acid producing 1 : 3-trimethyl - 2 - methyleneindoline as the main product; 2 : 5-dimethylindole may be substituted for the 2-methylindole to give 1 : 3 : 5-tetramethyl-2-methyleneindoline; (4) as example (3) but using concentrated hydrobromic acid.
Patent GB-281340-A (GB)
Title: An arrangement for the stabilising and for the prevention of the falling down of rotor air vessels equipped with several rotors, even though some of the rotors be stopped
IPC: B64C23/08
Filed: 1927-11-29
Abstract: 281,340. Giese, E. Nov. 29, 1926, [Convention date]. Drawings to Specification. Machines supported by rotary propellers; propelling; balancing. - A machine supported by rotor cylinders on transverse axes has means for putting out of action a rotor diagonally opposite to any one that may fail in order to maintain the balance of the machine, the remaining rotors being speeded up to maintain the lift. Some rotors may be held in reserve and started when necessary to relieve the load on the remaining rotors. Sloping fins are provided at the front and rear which are adjustable to compensate for small variations of lift. A machine having three groups of rotors one behind another is described, each group comprising two superposed and symmetrically arranged pairs.
Patent GB-245130-A (GB)
Title: Improvements in the manufacture of artificial wood
IPC: C08L97/02
Filed: 1925-12-21
Abstract: 245,130. Surdi, T. Dec. 20, 1924, [Convention date]. Void [Published under Sect. 91 of the Acts]. Fibrous plastic compositions.-Twings, young poplar or willow shoots, shrubs, &c. are disintegrated in such a way that the length of the fibres is left intact, the fibres are dried, waterproofed and dyed, and mixed with an agglomerating substance such as casein, gelatine, or mineral oil, and mixed to produce a felting of the fibres. The mass is moulded under pressure and dried, and the articles are treated with a substance to render the binder insoluble. Metal &c. reinforcement may be inserted during the moulding.
Patent GB-761207-A (GB)
Title: Improvements in moulds for casting walls and parts of buildings
IPC: E04G17/14
Filed: 1954-11-08
Abstract: 761,207. Shuttering for concrete structures; walls. JOHANSSON, J. E. Nov. 8, 1954 [Nov. 13, 1953], No. 32321/54. Classes 20(2) and 20(4) A mould for casting walls comprises mould shutters 3, 4 connected in spaced relationship by tie rods 17, 18, and supported by mould beams 7, 8 each of which is provided with one or more tensioning members 9, 10 in the form of braces which are connected with means, such as screw actuated extensible members 11, 12, for adjusting the pressure on a portion of the beam located between its ends in order to determine and maintain a desired shape of the mould. Each beam 7, 8 is preferably of I-section or similar shape and any number of beams may be provided for eacn shutter. Horizontal cross bars 5 are provided between the shutters and the beams. The braces 9 and 10 may be braced laterally by means of struts on opposite sides of the braces extending from the adjusting devices 11, 12 to a horizontal cross bar 5. As described, the invention is used for the construction of a wall of a building having an external layer of porous building stones and an internal cast layer 2. The shutter 3 is arranged externally against the previously laid stone layer and the shutter 4 is spaced internally therefrom. The ties 17, 18 are passed through the shutters and the stones 1 from the in side of the building and are screwed into nuts 21, 22 non-rotatably attached to the ends of the brace 9. Nuts 23, 24 are screwed on to the ties 17, 18 on the inside of the building and distance pieces corresponding to the thickness of the moulded layer 2 are arranged at the tie rods.
Patent GB-190464-A (GB)
Title: Improvements in grooved frames for sliding windows
IPC: B60J10/04
Filed: 1922-11-27
Abstract: 190,464. Cousinard, A. Dec. 14, 1921, [Convention date]. Window frames.-A resilient frame for sliding windows consists of two inclined members 4, 5, hinged together and housed in a channel frame 1 with inturned edges 2, and spring- pressed into contact with the sash 8.
Patent GB-765895-A (GB)
Title: Improvements in or relating to a knitted fluted fabric and a method for making the same
Inventor: CUSICK WILL EDWARD
IPC: D04B1/00
Filed: 1954-11-09
Abstract: 765,895. Knitting. BEAUTIFLUTE, Inc. Nov. 9, 1954, No. 32460/54. Class 74 (2). A knitted fabric is composed wholly of a single material or of a combination of materials and is made by first knitting a small group of consecutive wales 11 with a degree of looseness and a small group of consecutive wales 12 with a degree of tightness and repeating this pattern of knitting in alternate equal groups of consecutive wales to produce a pleating effect, and subsequently treating the complete fabric with steam to shrink it to approximately one-third of its original size. A fluted fabric, as shown in Fig. 3, is thus produced. By combining two portions of fabric, fluting in the one portion will be at right angles to the fluting in the other. The fabric may be knitted of wool, rayon, silk, or nylon or other plastic material.
Patent GB-744222-A (GB)
Title: Improvements in height-gauges
IPC: G01B5/06
Filed: 1953-11-24
Abstract: 744,222. Height-gauges. DYSON, P. Nov. 22, 1954 [Nov. 24, 1953], No. 32530/53. Class 106 (2). The vertical bar 5 of a height-gauge is of channel-shaped crosssection with the section of greatest moment of inertia disposed to resist deflection of the bar by pressure of a workpiece on the gauging finger carried by the bar. The finger is carried on a slide 29 bearing a halfnut 31 in engagement with a screwed shaft 17 extending through the bar and rotatable for fine adjustment of the finger by a gear 19 engaging with a worm rotated by a finger-knob 25. For coarse adjustment the half-nut is removed from engagement with the screwed shaft by a spring-loaded plunger 33. A screw 37 is provided for clamping the slide 29 to the bar.