baber/WOPTO huggingface dataset:
Patent SE-331302-B (SE)
Inventor: ROBSON R
IPC: H03B19/16
Filed: 1964-01-31
Abstract: 1,010,493. Converting. MARCONI CO. Ltd. Dec. 18, 1963 [Feb. 18, 1963], No. 6420/63. Heading H2F. A frequency doubler operating over a wide input frequency range (e.g. 5 to 30 Mc/s.) comprises four diodes D1, D2, D3, D4 connected sequentially in a ring with two series impedances C1, C2 connected in parallel with two adjacent diodes D3, D4, a tapped input connected between the junction of the other two adjacent diodes Dl, D2 and the junction of the impedances, and a. voltage phase displaced to the input voltage but of the same frequency connected between the tapping and the junction of the impedances. An output at twice the input frequency is obtained across the series impedances.
Patent SE-302785-B (SE)
Inventor: LENTZ N
IPC: H03K5/156
Filed: 1963-03-06
Abstract: 964,859. Pulse code modulation systems; transistor pulse circuits. WESTERN ELECTRIC CO. Inc. Feb. 21, 1963 [March 9, 1962], No. 6982/63. Headings H3T and H4L. A unipolar to bipolar pulse converter comprises a pair of blocking oscillators in pushpull configuration, capacitive steering circuitry being connected between a source of unipolar input pulses and the feedback circuits of the blocking oscillators to steer the input pulses to alternate blocking oscillators in succession whereby the blocking oscillators alternate in generating output pulses in response to unipolar input pulses. The outputs of the respective blocking oscillators are of opposite polarity and are combined to form the bipolar pulse signal. The converter is suitable for use in pulse code communication systems of the type described in Specification 935,293. As shown, positive-going unipolar pulses from source 10 are supplied to input 11 of an AND gate 12, positive-going clock pulses from a source 14 being supplied at the same time to the input 13. The resulting output from the gate 12 may follow a path including diode 20, capacitor 21, and winding 1, 2 and the base of transistor 24 of a first blocking oscillator, or alternatively, diode 27, capacitor 28, and winding 3, 4 and the base of transistor 30 of a second blocking oscillator. The particular path taken is determined by which capacitor 21 or 28 is holding a charge from the previous operation of the converter to produce a pulse. Assuming a positive charge on capacitor 21 which blocks the diode 20 and a zero charge on capacitor 28, the output of AND gate 12 is supplied via diode 27 to the base of transistor 30 causing transistor 30 to conduct and capacitor 28 to be charged positively. The resulting negative going potential at terminal 5 of winding 5, 6 appears with positive polarity on the side of each winding indicated by a dot. Thus, diode 33 conducts so that excess current from source 17 is shunted from the base to the collector of transistor 30 to prevent saturation and increase turn-off speed. While transistor 30 is conducting a positive pulse on terminal 1 of winding 1, 2 plus the original charge on capacitor 21 causes diode 34 to conduct and allow the capacitor 21 to discharge through resistor 35, winding 1, 2 and diode 46. The blocking oscillator output pulse is terminated by a negative-going clock pulse from a source 38 causing diode 39 to conduct and divert feedback current from the base of transistor 30, the output pulse appearing on winding 9, 10. The next positive pulse from AND gate 12 will be blocked at diode 27 and will be conducted via diode 20 to the base of transistor 24 of the second blocking oscillator functioning in the same manner. To avoid the possibility of having the same charge on capacitors 21, 28 a resistor 44 discharges capacitor 28 sufficiently to trigger transistor 30 on and ensure a start of the above operation.
Patent SE-336610-B (SE)
Inventor: BOCK H
IPC: H04Q3/00
Filed: 1969-03-31
Abstract: 1,227,056. Automatic exchange systems. SIEMENS A.G. 28 March, 1969 [29 March, 1968; 17 May, 1968], No. 16351/69. Heading H4K. Connections are set up in a telecommunications exchange using switching matrices of latching relays by initially applying a resetting voltage pulse to the respective row and column wires followed by a setting pulse of opposite polarity. As shown, each relay coil KR is connected through a threshold device (varistor) to a row wire xz and directly to a column wire yz. Each row wire is connectible by marker contacts x to a common row marker line U7 and through a decoupling diode Gx, which could be another switch contact, to a common row conductor U6. Similarly each column wire is connected to a common column conductor U8 through a decoupling diode Gy and is connectible by marker contacts y to a common column marker line U9. To set relay KR11 the marker contacts x1 and y1 are closed and the pairs of contacts t11, t12; t21, t22; closed in sequence to energize lines U7, U8; U6, U9 respectively, and reset the row of relays KR11-KR1m and the column KR11- KRn1 accordingly. Contacts t31, t32 are then closed to apply a voltage across lines U7, U9 to set up relay KR11. In a modification, Figs. 1 and 3 (not shown), each column wire is replaced by a pair of subsidiary column wires connected to the relay coil through oppositely poled rectifiers so that one wire transmits a resetting voltage pulse and the other wire a setting voltage pulse. An extra contact is required to mark the setting wire and a common column setting line is provided.
Patent SE-326049-B (SE)
Inventor: MEHTA M
IPC: A61J3/07
Filed: 1965-07-07
Abstract: 999,030. Delivering measured quantitites of granular material. M. K. MEHTA. July 8, 1964, No. 28210/64. Heading B8N. An apparatus for dispensing measured quantities of granular material comprises a rotary drum 6 mounted below a hopper 1 and having on its periphery measuring chambers 7, each chamber having an ejector 9 and means 12, 15 for raising and lowering the ejector in order to vary the capacity of the chamber. The ejector is formed with a tapered surface for co-operation with a corresponding surface on a washer 12, the surfaces being urged into contact via a spring 10. As shown in Fig. 2, the washer is formed with a cam surface coacting with a tapered surface 16 on a rod 15, the rod being movable against the action of a spring 18 by means of a screw 17. A number of axial and circumferential rows of chambers are provided, the rows in an axial direction being staggered as shown in Fig. 2, in order that one rod 15 may adjust two or more ejectors. In operation, the material in the hopper 1 is fed by means of a rotatable agitator 5 into an axial row of chambers, the material then being contained in the chambers by means of a rubber lining 3 until, at the bottom dead-centre position, a cam 21 actuates the respective ejectors to dispense the material. A slide 4 is provided for preventing the flow of material into the chambers, if desired.
Patent SE-332178-B (SE)
Inventor: JUCKER E
IPC: C08F2/38
Filed: 1967-06-29
Abstract: Novel compounds of the general formula <FORM:1084450/C2/1> (wherein R5 represents Cl, Br or a C1- 4 alkoxy radical, Z represents -CH = CH- or -CH2 CH2-, and either R1 and R2 are the same or different and each represent H or Me and R3 and R4 are the same or different and each represent a C1- 4 alkyl radical or -NR3R4 represents a pyrrolidino, piperidino, piperazino, 4-methylpiperazino or 4-(C2 or C3 hydroxyalkyl)-piperazino radical, or R4 represents a C1- 4 alkyl radical, R3 and R1 together represent -(CH2)2- or -(CH2)3- and R2 represents H, or R4 represents a C1- 4 alkyl radical, R3 and R2 together represent -(CH2)3- or -(CH2)4- and R1 represents H) are prepared as follows: (a) in all cases except where - NR3R4 is piperazino or 4-hydroxyalkylpiperazino, by dehydration, by the action of mineral acids, strong organic acids, acetic anhydride, SOCl2 or POCl3, of the corresponding 4-hydroxy compounds, themselves obtainable by a Grignard reaction from compounds of the general formula <FORM:1084450/C2/2> (b) when -NR3R4 is piperazino, by treating the corresponding 4-methylpiperazino compounds with a C1- 4 alkyl chloroformate and hydrolysing the resulting 4-alkoxycarbonylpiperazino compounds; (c) when -NR3R4 is 4-hydroxyalkylpiperazino, by treating the product of (b) with a hydroxyalkylating agent.  The products may be converted into acid addition salts.  Pharmaceutical compositions, e.g. tablets, dragees, injectable solutions and suppositories, having neuroleptic and sedative activity, comprise compounds (I) or their acid addition salts, together with a physiologically acceptable carrier.
Patent ZA-812746-B (ZA)
Title: Optical coupler for transmission and reception over optical fibre
Inventor: MAURO PERINO
IPC: H01L33/00
Filed: 1981-04-27
Abstract: Optical coupler allowing contemporaneous transmission and reception of two light signals through the same optical fibre by introducing very low attenuations, owing to the use of a large surface photodetector whose centre is traversed by a microlens.
Patent ZA-818397-B (ZA)
Title: Displacer rod for use in a mechanical spectral shift reacttor
Inventor: GJERTSEN ROBERT KENNETH
IPC: G21C7/27
Filed: 1981-12-03
Abstract: A displacer rod for use in a mechanical spectral shift pressurized water nuclear reactor comprises a sectioned substantially hollow low neutron absorbing metal rod capable of displacing reactor coolant without absorbing a high amount of neutrons. The tubular sections can be made of stainless steel or Zircaloy tubing and may contain pellets for weighting the displacer rod.
Patent ZA-835357-B (ZA)
Title: Novel muramyl peptides and processes for their manufacture
Inventor: HARTMANN ALBERT
IPC: A61P31/12
Filed: 1983-07-22
Abstract: The compounds of the formula I    <IMAGE>  (I)    <IMAGE>  in which each of R1, R4 and R6, independently of the others, represents hydrogen or lower alkanoyl, R2 represents C1-4-alkyl, hydroxymethyl or phenyl, R3 represents hydrogen or methyl, R5 represents hydrogen or C1-3-alkyl, R7 represents C1-3-alkyl that is unsubstituted or substituted by hydroxy, mercapto or methylthio, R8 represents hydrogen or lower alkyl, X represents oxygen or the group NH, Y represents C1-4-alkylidene, and each of R9 and R10, independently of the other, represents C11-17-alkyl or C11-17-alkenyl, and their salts, have an immunostimulating activeity.
Patent ZA-836919-B (ZA)
Title: Method and equipment for processing a plasticisable material
Inventor: CROWE ANTHONY
IPC: B29C48/38
Filed: 1983-09-16
Abstract: A plasticizing screw (4) is used to feed raw material (rubber compound) in the cold state into a cylinder (2). The material is plasticized and warmed up by the screw (4). The cylinder (2) is constructed so that the raw material fed into the cylinder can by retraction of the piston flow through a non-return valve into the front of the piston. The piston then extrudes the material through a die. On leaving the die, the material is cut into blanks, using a cutting mechanism (11). Material in the cold state can be fed directly into the cylinder tanks to the plasticizing screw (4), which plasticizes and preheats the material. Volume control is achieved automatically in dependence with the advance of the piston (FIG. 1).
Patent ZA-846152-B (ZA)
Title: Radiation sensitive compounds
Inventor: WADE JOHN ROBERT
IPC: C07D215/14
Filed: 1984-08-08
Abstract: A radiation-sensitive compound has the general formula <CHEM>  wherein A represents the ring members required to complete a 5- or 6-membered heterocyclic ring which may optionally be fused to an optionally substituted aromatic nucleus,  B represents H, acyl, aroyl, heterocyclyl carbonyl or <CHEM>  R represents an optionally substituted alkyl group, E and G, which may be the same or different, each represents H or CHpX3-p, J and K, which may be the same or different, each represents an aryl or heterocyclic group, which may optionally include a substituent additional to E or G,  X represents Cl or Br, and m, n and p, which may be the same or different, each represents an integer equal to 0, 1 or 2. The compound can be used to form radiation sensitive compositions for the production of radiation sensitive plates in lithographic printing plate manufacture.
Patent ZA-848502-B (ZA)
Title: Heat-resistant synthetic resin bottle
Inventor: NAKAMURA YOSHINORI
IPC: B65D1/02
Filed: 1984-10-31
Abstract: Here is disclosed a heat-resistant synthetic resin bottle which is biaxially oriented by axially stretching and air blowing an injected or extruded closed-end parison in a blow mold to carry out molding, whereby a bottom wall (3) of the bottle is recessed toward its interior in the form of a dome and an annular peripheral edge (4) for supporting the bottle itself is formed around the bottom wall, characterized in that a top portion (3a) of the bottom wall which is formed gradually thickly from the annular peripheral edge (4) to a central portion thereof is recessed upwardly from the underside of the top portion itself in order to thin the top portion, and the bottom wall between the top portion and the peripheral edge is partially outwardly swollen out in order to radially form a predetermined number of triangular pyramid-shaped hollow lugs (5) and bottom bones (6) present between these hollow lugs.
Patent ZA-853955-B (ZA)
Title: Office desk,in particular for peripheral computer equipment
Inventor: VEYHL WOLF
IPC: A47B17/00
Filed: 1985-05-24
Abstract: An office desk suited in particular for peripheral computer equipment consists of two side parts formed by columns provided with feet, a longitudinal beam detachably connected with the columns by connection elements establishing a form-locking connection, and of carrying arms for at least one table top mounted on the longitudinal beam. These components can be varied in many different ways and combined in the most different manners so that office desks optimally adapted in each case to the respective application can be realized with the same basic elements.
Patent ZA-854507-B (ZA)
Title: Process and device for the selective separation of pathological and/or toxic species from blood or plasma with the use of filter candles
Inventor: ROSSKOPF GERHARD
IPC: A61K35/16
Filed: 1985-06-14
Abstract: A process and device for the selective separation of pathological and/or toxic species from blood, plasma or serum wherein a plasma or serum fraction is passed through a container containing one or more filter candles of decreasing mean pore diameter and which may contain a sterilizable spacing disc between the filter candles. In accordance with the invention, macromolecular phatological and/or toxic species with molecular weight exclusion limits between about 20,000 and 3,000,000 D may be selectively separated from a fraction of plasma or serum.
Patent ZA-857443-B (ZA)
Title: Connector
Inventor: LIBREGTS HUBERTUS BERNARDUS
IPC: H01R13/58
Filed: 1985-09-26
Abstract: Connector intended for attachment to the end of a cable consisting of one or more insulated conductors enclosed by a jacket, said connector comprising two housing parts which in the assembled state together define a passage having a first section designed to take the jacketed end of the cable, and a second section situated further in to take the insulated conductors projecting from the jacket. Both housing parts being provided at the first section with strain relief elements acting on the cable jacket in the assembled state, and one of the housing parts is provided at the second section with a pierce contact for each conductor. One housing part comprises in the second section of the passage cone-shaped teeth which in the assembled state project from the passage wall at right angles to the conductors and extend out to the passage wall of the other housing part in such a way that in the assembled state in the second section of the passage apertures are defined with a passage area which is smaller than the cross sectional area of the insulated conductors, so that a strain relief for each of the insulated conductors is formed.
Patent ZA-865363-B (ZA)
Title: Controlled and delayed release pharmaceutical composition
Inventor: ZIERENBERG BERND
IPC: A61K47/00
Filed: 1986-07-18
Abstract: The pharmaceutical composition is in the form of a carrier material with a pharmaceutical agent with controlled and delayed release of agent. The release of the agent can be adjusted by varying the particle size and the glass transition temperature.
Patent ZA-869153-B (ZA)
IPC: C23C14/08
Filed: 1986-12-03
Abstract: A multiple layer high transmittance, low emissivity coated article is disclosed with improved chemical resistance as a result of a protective overcoat of titanium oxide.
Patent ZA-872699-B (ZA)
Title: Azo dyes
Inventor: ADAM JEAN-MARIE
IPC: C09B29/085
Filed: 1987-04-15
Abstract: Novel azo dyes of the formula 
<IMAGE>
 and tautomeric forms thereof are useful in particular for dyeing and printing textile materials, paper and leather and for preparing inks.
Patent ZA-898543-B (ZA)
Title: A method of modifying the properties of a metal matrix composite body
Inventor: NEWKIRK MARC STEVENS
IPC: C22C47/08
Filed: 1989-11-09
Abstract: The present invention relates to modifying the properties of a metal matrix composite body by a post formation process treatment and/or a substantially contiguous modification treatment. The post formation process treatment may be applicable to a variety of metal matrix composite bodies produced by various techniques, and is particularly applicable to modifying the properties of a metal matrix composite body produced by a spontaneous infiltration technique. The substantially contiguous modification process may also be used primarily in conjunction with metal matrix composite bodies produced according to a spontaneous infiltration technique. Particularly, at least a portion of the matrix metal of the metal matrix composite body and/or the filler material of the metal matrix composite body is modified or altered during and/or after the formation process.
Patent ZA-913635-B (ZA)
Title: A turbo-machine stage having reduced secondary losses
Inventor: DETANNE FRANCOIS
IPC: F01D5/14
Filed: 1991-05-14
Abstract: Turbine stage comprising a bank of fixed blades (1) integral with the stator (3) of the turbine supporting a diaphragm followed by a bank of moving blades (7) mounted on a disc (9) integral with the rotor (6) of the turbine, the said bank of moving blades (7) comprising at its apex a leaktight packing (10) constituted from several chambers (11). The disc (9) comprises intake orifices (16) opening into the space between the diaphragm (4) and the disc and disposed in the vicinity of the peripheral section of the disc (9). 
<??>The intake orifices (16) are connected by ducts (17) traversing at least some moving blades (8) up to outlet orifices (18) opening at the apex of these blades (8) downstream of the leaktight packing (10) or in a chamber of the latter (11). 
<??>The disturbed flow at the feet of the fixed blades (2) and the leakage flow between diaphragm (4) and rotor (6) are taken in by the orifices (16), which improves the efficiency. 
<IMAGE>
Patent ZA-921686-B (ZA)
Title: Process for the preparation of chemically homogeneous cycloolefin copolymers
Inventor: BREKNER MICHAEL-JOACHIM
IPC: C07F17/00
Filed: 1992-03-06
Abstract: Metallocenes of formula (XI) are new, wherein M<1> = Ti, Zr, Hf, V, Nb or Ta; R<14>, R<15> = H, halogen, 1-10 C alkyl, 1-10 C alkoxy, 6-10 C aryl, 6-10 C aryloxy, 2-10 C alkenyl, 7-40 C arylalkyl, 7-40 C alkylaryl or 8-40 C arylalkenyl; R<16>, R<17> = 9-fluorenyl and 1-(3-isopropyl)cyclopentadienyl, or 9-fluorenyl and 1-(3-t-butyl)cyclopentadienyl, forming a sandwich structure with M<1>; R<18> = a one or more membered bridge, which connects R<16> and R<17>, pref. -(R<19>)M<2)<R<20>)-, -(R<19>)M<2)<R<20>)-(R<19>)M<2)<R<20>)-, -(R<19>)M<2)<R<20>)-CR2<21>-, -(R<19>)C(R<20>)-, -O-(R<19>)M<2)<R<20>)-, -(R<19>)C(R<20>)-(R<19>)C(R<20>)-, =BR<19>, =AlR<19>, -Ge-, -Sn-, -O-, -S-, =SO, =SO2, =NR<19>, =CO, =pr<19> or =P(O)R<19>; R<19>, R<20>, R<21> = independently H, halogen, 1-10 C alkyl, 1-10 C fluoroalkyl, 6-10 C aryl, 1-10 C alkoxy, 2-10 C alkenyl, 7-40 C arylalkyl, 8-40 C arylalkenyl or 7-40 C alkylaryl, or R<19> and R<20> or R<19> and R<21> form together a ring with bonded atoms; and isopropylene or diphenylmethylene; and M<2> = Si, Ge or Sn. Catalysts comprising a linear type aluminoxane of formula (IX) and/or a cyclic type aluminoxane of formula (X), in addn. to (XI) are also claimed; R<13> = 1-5 C alkyl, phenyl or benzyl; and n = 0-50.
Patent ZA-939408-B (ZA)
Title: Dilute process for the polymerization of ethylene/alpha-olefin corpolymer using metallocene catalyst systems
Inventor: ROSSI ALBERT
IPC: C08F2/06
Filed: 1993-12-15
Abstract: An improved process for the copolymerization of ethylene and  alpha -olefins utilizing highly dilute  alpha -olefin feedstreams to effect high conversions and catalyst productivities. The instant invention is particularly adaptable to copolymerizing the  alpha -olefin content of commercially available refinery feedstreams such as Raffinate-2.
Patent ZA-943922-B (ZA)
Title: Tobacco expansion processes and apparatus
Inventor: CONRAD LUCAS JONES
IPC: A24B3/18
Filed: 1994-06-03
Abstract: This invention provides improvements in tobacco expansion processes which are capable of dramatically improving tobacco throughput in high pressure tobacco impregnation systems. In accordance with various aspects of the invention, tobacco can be impregnated in a high pressure impregnation zone and removed from the zone for expansion in complete cycle times of less than one minute, typically less than about 15-30 seconds. In addition, tobacco throughputs are further improved in accordance with other aspects of the invention by achieving dramatically improved use of the available treatment space in a high pressure impregnation zone. In addition, the invention provides processes for minimizing the amount of expansion agent used to treat tobacco. <IMAGE>
Patent ZA-944482-B (ZA)
Title: Fabric treatment
Inventor: PEARSON LESLIE
IPC: D06M13/425
Filed: 1994-06-22
Abstract: The degree of fibrillation and/or the tendency to fibrillation of lyocell fabric can be reduced by treating the fabric with a low-formaldehyde or zero-formaldehyde crosslinking resin, heating the treated fabric to cure the resin, and washing and drying the fabric. The treatment can be applied to dyed fabric.
Patent ZA-967694-B (ZA)
Title: Polymers having improved processability
Inventor: DUTTON AMANDA JANE
IPC: C08J5/18
Filed: 1996-09-12
Abstract: Poly(lactones) are provided. The poly(lactones) are obtained by polymerization of a lactone with an initiator system comprising at least one polyfunctional initiator. The poly(lactones) have a shear viscosity at some temperature in the range of from 35 to 45° C. above the melting temperature of the poly(lactone) of at least 6 kPas at 0.1 s-1 shear rate and no greater than 3.5 kPas at 100 s-1 shear rate, and a shear viscosity activation energy of greater than 40 kJ/mol. Preferably, the poly(lactone) is poly(caprolactone).
Patent ZA-986604-B (ZA)
Title: Device interface
Inventor: MERIC JEROME
IPC: H04L29/02
Filed: 1998-07-24
Abstract: A device interface for use in a receiver/decoder for a broadcast digital television system in which received signals are passed through a receiver to the receiver/decoder and thence to a television set. The receiver/decoder decodes a compressed MPEG-type signal, and is controlled by a remote controller handset, through an interface in the receiver/decoder. The operation of the receiver/decoder is controlled by a virtual machine (VM) which includes a run time engine (RTE). The receiver/decoder includes a plurality of interfaces to external units. The device interface enables an application run by the RTE to access an IEEE 1394 interface. The device driver may be applied to other interfaces. <IMAGE>