baber/WOPTO huggingface dataset:
Patent GB-1511819-A (GB)
Title: Centrifuge container
IPC: B04B5/04
Filed: 1976-10-06
Abstract: 1511819 Collapsible container for centrifuge INTERNATIONAL BUSINESS MACHINES CORP 6 Oct 1976 [21 Nov 1975] 41547/76 Heading B2P An annular, flexible, collapsible centrifuge container for fluid, e.g. blood, separable into fractions according to density comprises a plurality of radially separated expansible fluid channels 11, 23 in the form of concentric interrupted annuli, an inlet and at least one outlet at opposite ends of each channel, the inlet to one end of the innermost channel 23 being in the form of a tube 31 extending radially outward from within the central opening 7 of the annular container, and each outlet being in the form of a tube, e.g. 19, 21 or 29, extending radially inward from the other end of the respective channel to the central opening 7, the other end of each channel, except the outermost 11, being connected to the one end of the next channel. The container is formed from two annular pieces 1a, 1b of flexible plastics, e.g. P.V.C., sealed together by heat and pressure to form fluid-tight welds at 3, 5, 9, 13 and 15. The tubes 19, 21, 29 and 31 are moulded, welded or sealed through the weld 9. The radially inward region of the channel 23 is connected to the inlet end of channel 11 by a radial channel 25. In use, the container may be placed in the rotor of a centrifuge as described in Specification 1509667, the rotor cover having recesses to receive the channels 11 and 23 when expanded. Whole blood to be processed may be introduced into the inner channel 23 through the tube 31. Red cells are removed through the tube 29. Platelet-rich plasma is led through channel 25 to the outer channel 11 from which platelet-poor plasma and platelet concentrate are withdrawn through tubes 19 and 21 respectively. In a modification, instead of providing the channel 25 to connect channels 11 and 23, a further outlet tube may extend from the radially inward region of the portion 27 of annular channel 23 to the central opening 7 and be connected to a further inlet tube which extends from the opening to the adjacent end of the channel 11.
Patent GB-1088849-A (GB)
Title: Releasable fastening for two pieces of fabric and manufacture thereof
IPC: A44B18/00
Filed: 1964-10-14
Abstract: A loop pile fabric, for use with a hooked pile fabric to constitute a fastener, consists of a contractable base fabric having staggered warp floats on one face which rise to form loops when the base contracts.  The base fabric may employ a thermoplastic warp, shrunk by heat, or an elastic warp, woven stretched.
Patent GB-996663-A (GB)
Title: Powder applying and fusing torch apparatus
IPC: B05B1/30
Filed: 1963-10-24
Abstract: 996,663. Spray-producers. WALL COLMONOY CORPORATION. Oct. 24, 1963 [Dec. 28, 1962], No. 41980/63. Heading B2F. A fusible metal torch comprises a body member 7 to which is detachably connected a tip member 39 and a torch butt 4. The latter is so connected through a coupling 13 which is connected to the body member through a mixer 11 threadedly engaged in a bore 27 disposed in the member. The bore houses a nozzle 25 having an orifice 29, and oxyacetylene from a suitably pressurized fuel system passes from the mixer 11, through the nozzle 25, through an extension 35 welded to the body member 7, through a coupling nut 37, by which the tip member 39 is joined to the member 7, and thence through the member 35 itself to issue, where ignited, in a flame 43. Valve knobs 5 are provided on the butt for adjusting and controlling the flow of oxygen and acetylene through the butt into the mixer 11. The nozzle 25 opens into a chamber 33 in the member 7 this chamber being in communication wtih a fusible powder container 55 through vertical and horizontal passageways 49 and 51. The communicating orifice between the latter passageway and the lower cavity 53 of the container 55 is normally closed by a stretched resilient seal member 71, the stretching being effected by a plunger 65 slidable in a bore 67 in the member 7. The plunger is partly withdrawn-against a spring 75-from the interior of the seal 71 by actuation of a handoperated lever mechanism 83, 85, such withdrawal allowing powdered particles from the container 55 to pass to the chamber 33 through the passageways 51 and 49 from whence they are entrained by the fuel gas issuing from the nozzle orifice 29. The seal is stretched by the plunger 65 such that on plunger withdrawal the seal flange 63 still remains tightly against the inner end of the bore 67 to prevent leakage of particles into the bore from the container. Through the various threaded interconnections of the torch, the nozzle and tip member may be quickly changed for a wide variety of applications.
Patent GB-1170189-A (GB)
Title: Electrical Connector.
Inventor: JONES JOHN LEONARD
IPC: H01R12/50
Filed: 1968-09-05
Abstract: 1,170,189. Connectors. M.E.L. EQUIPMENT CO. Ltd. 5 Sept., 1968, No. 42211/68. Heading H2E. A connector, intended for connecting wiring to a printed wiring board comprises an insulating block 2 having therein a plurality of slots 9 (Fig. 5), each of which contains a sheet metal contact, e.g. of nickel and silver alloy, shaped as shown in Fig. 8. The contact is allowed limited longitudinal movement in the slot 9, over-insertion being prevented by the arm 4 in the space 14 (Fig. 5) abutting against the edge of the block, and withdrawal being prevented by the resilient flap or detent 3, which slides in a groove 13 in the side of the slot 9. Connection to the wire 16 is made by wrapping around the tag 5, followed by soldering, and connection to the board 11 is made by the insertion of the plug part 6 into a socket member 7 on the printed wiring board 11. The member 10, formed integrally with the block 2, acts to correctly space the block from the board. The installation is electrically tested before the contact 6 is soldered to the socket 7. The mouth of the slot 9 may be slightly enlarged to permit the removal of the contact even if solder has adhered to it after de-soldering. In use, the connector may be bolted to a bracket 15, through holes 8 in the block.
Patent GB-1466617-A (GB)
Title: Method and apparatus for the determination of electron density in a part volume of a body
IPC: G01N23/02
Filed: 1974-10-01
Abstract: 1466617 Electron density measurement I LEUNBACH 1 Oct 1974 [9 Oct 1973] 42642/74 Heading G1A [Also in Division I] The electron density and absorption or transmission coefficient of a small volume of a body is determined by directing a first beam of ionizing radiation into the volume in a first direction and measuring the radiation transmitted in the first direction and Compton scattered into a second direction at a predetermined angle to the first direction; directing a second beam of ionizing radiation of equal intensity to the first beam, into the volume in the second direction and measuring the transmitted radiation in the second direction and the radiation scattered into the first direction and computing the electron density from the measured values. The radiation energy must be such that the Compton effect is the wholly dominant absorption phenomenon. For human tissue, an energy range of 100 KeV to 1À02 MeV is preferred and Cs<SP>137</SP> or Co<SP>60</SP> may be used with an angle between the directions of 30-60 degrees. The sources are collimated and the detectors may be NaI crystals with associated scintillation detectors. The basic arrangement is shown in Fig. 1. Sources E 1  in collimators 1, 6 respectively may be alternately used by moving sector plate 7 and define the first and second directions which are separated by angle # and meet in the measuring volume MV. When the source at a is in use the detector d measures direct radiation and c scattered radiation and vice versa when the source at b is in use. To enable the absorption in body p containing the measuring volume to be measured and hence compensated for, three methods of operation can be used. Method I Two scattered radiation detectors are used, one on each side of the main beam. # = 90 degrees. With a source of energy E, at a, scattered radiation 'energy E 2 ' is measured at b and c. With a source of energy E 2  at b, scattered radiation, E 3 , is measured at a and d and direct radiation at c. With a source of energy E3 at d, direct radiation is measured at a. Method II  Arrangement as in method I. With source of energy E 2  at a, scattered radiation is measured at b and c. With a source of energy E 2  at b, scattered radiation is measured at a and d. Method III The procedure is the same as method II but # is # 90 degrees.  Formulae are given for calculating electron density and absorption coefficients from the measured results. These values may be automatically processed and the results displayed. The method may be used for diagnostic measurement of tissues, many measured values being quoted. It is particularly useful when a "pair" of values for different points in a body have been obtained.
Patent GB-1143059-A (GB)
Title: Powderless etching bath
Inventor: BROWN JAMES ALLEN
IPC: C23F1/42
Filed: 1967-09-19
Abstract: 1,143,059. Etching. DOW CHEMICAL CO. 19 Sept., 1967 [20 Sept., 1966], No. 42646/67. Heading B6J. Magnesium is etched with an etchant comprising: (A) nitric acid, (B) sulphonated monochlorododecyldiphenyl oxide, (C) a liquid organic mixture comprising (1) an aromatic naphtha and (2) an alkyl benzene branched chain hydrocarbon liquid, e.g. dodecyl benzene, and (D) water. After the etching each of a series of magnesium plates, there is added to the etchant a mixture of (a) petroleum sulphonate, (b) sodium monochlorododecyldiphenyl oxide disulphonate, and (c) an aromatic naphtha solvent. Additional optional ingredients are (i) an aliphatic dicarboxylic acid, e.g. adipic acid, (ii) sulphuric acid, or sodium, magnesium, aluminium or ammonium sulphate, or sodium acid sulphate.
Patent GB-1069665-A (GB)
Title: Plant for heating and/or cooling,by means of air,rooms in general
IPC: F24D5/00
Filed: 1965-10-12
Abstract: 1,069,665. Heating and cooling buildings. G. J. INSAM. Oct. 12, 1965 [Oct. 22, 1964], No. 43198/65. Heading F4U. A plant for heating and/or cooling buildings comprises hot and cold air generators 1, 2 respectively, interchangeably connectible through delivery and return pipe systems 3, 4 respectively to horizontal radiating elements 15<SP>1</SP> forming part of the vertical walls of a room 6. The air flow through each set of elements 15<SP>1</SP>, circulated by fan 5, is regulated by shutter 9 in branch 7 leading to distributing header 10, from where the air passes through parallel flow conduits formed by hollow blocks or tiles 13 which form part of the walls of the room 6, to collecting header 11 to return to the generators 1, 2. Hot air may be circulated through elements near the floor, and cold air through elements near the ceiling.
Patent GB-918328-A (GB)
Title: Improvements in and relating to electrodes for use in the electrolysis of solutions
IPC: C25B11/10
Filed: 1961-12-04
Abstract: An electrode having a coating thereon comprising at least one platinum group metal (platinum, palladium, rhodium, iridium, osmium and ruthenium; or alloys formed of these metals) is treated to cause at least a partial recrystallization of said coating by charging the coating with hydrogen and then heating the electrode. More particularly a method of treating a titanium or titanium-base alloy anode-coated with platinum, applied by vapour deposition, by sputtering, by painting platinum compounds subsequently decomposed, or by electroplating.  Prior to coating with platinum the electrodes are etched in a dilute hydrofluoric acid-nitric solution and then in concentrated hydrochloric acid at 45 DEG  C.  The electrodes are heated at 700-1000 DEG  F.
Patent GB-1352367-A (GB)
Title: Electric motor apparatus including a starting switch
IPC: H02P1/42
Filed: 1971-09-16
Abstract: 1352367 Starting A.C. motors FRANKLIN ELECTRIC CO Inc 16 Sept 1971 [16 Sept 1970] 43299/71 Heading H2J An electric motor, having main and starting windings fed from an A.C. source, has a switch in series with the starting winding that is opened upon the attainment of a predetermined phase difference between the starting winding current and the source voltage. In the embodiment shown, the excitation of starting winding 43, Fig. 3, is controlled by the speed dependent phase angle between the applied voltage 40 and the starting winding current. For low speeds, capacitor 78, which forms part of a relaxation oscillator, charges as the applied voltage rises, until diac 76 breaks down at phase angle 61 (Fig. 2a) of the applied voltage, when capacitor 78 discharges providing trigger pulses 50 to turn triac 44 on, thus exciting the starting winding 43. Capacitor 78 recharges and the cycle is repeated to produce a burst of firing pulses to triac 44. In a diasbling circuit, capacitor 90 charges from a voltage divider 94, 98 across the supply until diac 88 breaks down at phase angle 63 (Fig. 2a) of the applied voltage, turning triac 86 on and shorting capacitor 78, thus the firing pulses to triac 44 are discontinued, and triac 44 turns off at its next current zero. Provided the starting winding current zero 60 (Fig. 2a) occurs before phase angle 63 is reached i.e. that the phase angle 62 between the starting winding current and applied voltage does not exceed a predetermined value, triac 44 is retriggered by pulses 50 and the starting winding excitation continues. Overload protection, e.g. against-a locked rotor condition is afforded by a divider across the supply, including a PTC resistor, that limits the voltage applied to diac 76, in an overload condition, to a value less than the diac breakdown value i.e. triac 44 cannot be triggered on. At full speed, and with triac 44 off, the voltage at 106 is the algebraic sum of the supply voltage and the voltage across the starting winding. This voltage sum, which depends upon the phase relationship between the two voltages and is thus related to speed, is used to control another relaxation oscillator, in which capacitor 116 charges until diac 118 breaks down, turning triac 86 on, preventing further excitation of the starting winding. The firing pulses 50 may be replaced by a single pulse. If the speed falls below a prescribed value, the voltage at 106 may be used to switch in the starting winding again, Figs. 5 to 8 (not shown), the triggering pulse being inhibited only on positive half cycles, and a capacitor phase shifting circuit may be used in series with the starting winding.
Patent GB-1326085-A (GB)
Title: Tape recorders
IPC: G11B15/68
Filed: 1970-09-10
Abstract: 1326085 Cassette juke boxes OLYMPUS OPTICAL CO Ltd 10 Sept 1970 [11 Sept 1969 (2)] 43324/70 Heading G5R In a juke box, successive tape cassettes are fed to an outwardly biased operating deck, and are then pushed inwards with the deck and operated, whereafter they are released and allowed to move outwards with the deck, and are then removed from the deck. In the embodiment of Figs. 2, 3, a linkage system 17, 20, 22 is driven from a cam-wheel 9 to cause a leaf-spring 26 to press a cassette 3-5 and a biased deck 2 (Fig. 3) downwards to the operating position of Fig. 2. After operation, the spring 26 passes out of contact with cassette 3-5 as wheel 9 continues its clockwide rotation, and the bias force acting on the deck then forces the cassette and the deck upwards; the lever 22 then pushes cassette 3-5 away from deck 2, thereby forcing a previously operated cassette 3-4 to drop into a bin 5, as in Fig. 3. In a similar manual embodiment (Figs. 8, 9, 10, not shown), two pushbuttons (207, 222) are respectively operable to produce lowering/raising of the cassette deck and removal of the cassette from the deck. In the embodiment of Fig. 12, a frame may be pivoted anticlockwise about a pivot 305 to cause a part 304e to push a cassette 303-2 and biased deck 302 inwards to an operating position, as in Fig. 11 (not shown). If, however, the frame is rotated clockwise, a stop 306 pushes the now-released cassette off a holding platform 307a whereupon the cassette drops into a bir 312, as in Fig. 13 (not shown). A cam-operated linkage system is operable to complete loading/ ejecting actions automatically (as in Fig. 15, not shown).
Patent GB-1279735-A (GB)
Title: Semiconductor device and fabrication of same
Inventor: ENGELER WILLIAM ERNEST
IPC: H01L29/08
Filed: 1969-09-02
Abstract: 1279735 Semi-conductor device manufacture GENERAL ELECTRIC CO 2 Sept 1969 [18 Sept 1968] 43427/69 Heading H1K A semi-conductor device, e.g. a transistor, is made by forming a highly doped region of one conductivity type on or in a surface of a region of the opposite type, etching one or more holes through it, epitaxially growing in the holes material of the opposite conductivity type but containing a fast diffusing impurity characteristic of the one type and heating to diffuse this into the underlying material to form a thin lightly doped layer of the one type beneath each hole contacting the highly doped region. Typically, starting from a N + Si wafer carrying an N-type epitaxial collector layer, a P+ base contact region is formed by oxide masked diffusion or epitaxial growth and holes cut through it using standard photoresist techniques and gas etching. Then partially compensated N+ silicon is grown in the holes by an iondine transport reaction to form emitter regions and diffusion effected to form 1 Á thick base regions. A base electrode and one or more emitter electrodes each contacting a plurality of the emitter regions are formed by aperturing a passivating oxide layer and vapour depositing and pattern etching a layer of aluminium. Devices may be formed in multiple on a common substrate which is subsequently divided by scribing, or formed as junction isolated devices on N regions in a large wafer. Thyristors may be formed by using a P + rather than a N+ substrate in the above process. In an alternative method, silicon nitride is deposited over the oxide masking prior to the epitaxial deposition step which in this case covers the entire wafer face. The material deposited between the holes may subsequently be removed by pattern etching using a silicon nitride masking layer. Details of the various deposition diffusion and etching processes are given.
Patent GB-1477114-A (GB)
Title: 1,4-dihydropyridinecarboxylic acid aralkyl esters processes for their preparation and their use as medicaments
IPC: C07D211/02
Filed: 1975-10-24
Abstract: 1477114 Derivatives of 1,4-dihydropyridine BAYER AG 24 Oct 1975 [26 Feb 1975 12 July 1975] 43763/75 Heading C2C The invention comprises compounds of formula wherein R represents a carbocyclic aryl radical which optionally contains as 1 to 3 identical or different substituents phenyl, alkyl, alkoxy, cycloalkyl alkenyl, alkinyl, halogen, trifluoromethyl, trifluoromethoxy, hydroxyl, nitro, cyano, azido, amino, monoalkylamino, dialkylamino, carbalkoxy, carbonamido, sulphonamido or/and SO n -alkyl (n=0 to 2), or represents an optionally alkyl-, alkoxy- or halogen-substituted quinolyl, isoquinolyl, pyridyl, pyrimidyl, thienyl, furyl or pyrryl radical, R<SP>1</SP> represents alkyl or the -OR<SP>6</SP> group, R<SP>6</SP> represents a straight-chain, branched or cyclic, saturated or unsaturated hydrocarbon radical which is optionally interrupted by 1 or 2 oxygen atoms in the chain or in which a hydrogen atom is substituted by an hydroxyl or amino group, and the latter optionally carries as two identical or different substituents alkyl, alkoxyalkyl, aryl or/and aralkyl, and these substituents optionally form a 5-membered to 7-membered ring with the amine nitrogen, R<SP>2</SP> and R<SP>4</SP> are identical or different and represent hydrogen or a straightchain or branched alkyl radical, R<SP>3</SP> denotes hydrogen or a straight-chain or branched alkyl radical which is optionally interrupted by an oxygen atom in the alkyl chain, X represents an alkylene group which is optionally substituted by alkyl and which is optionally bonded to R<SP>5</SP> via an oxygen atom or a sulphur atom and R<SP>5</SP> represents an unsubstituted or substituted aryl radical which contains as 1 to 3 identical or different substituents alkyl, alkoxy, halogen, trifluoromethyl, trifluoromethoxy, hydroxyl, amino, dialkylamino, nitro, cyano, carbonamido, sulphonamido or/and SO n -alkyl (n= 0 to 2). These compounds are prepared by methods in which the 1,4-dihydropyridine ring is formed. Therapeutic compositions having coronary, anti-fibrillation, vascular-spasmolytic, antihypertensive and muscular-spasmolytic activity, comprise compounds of the above formula, and may be administered orally, parenterally or rectally.
Patent GB-979680-A (GB)
Title: Pharmaceutical compositions containing esters of quaternary atropinium salts
IPC: C07D/
Filed: 1962-11-20
Abstract: Compounds of formula <FORM:0979680/C1/1> wherein R1 is an aliphatic acyl radical having 2 to 5 carbon atoms, R2 is an aralkyl radical, and X- is the anion of a physiologically acceptable acid, are prepared by either (1) esterifying the hydroxyl group of an atropine salt, preferably the hydrobromide, with an acid anhydride, converting the product to the free base, and quaternising the nitrogen atom with an aralkyl halide, or (ii) quaternising atropine with an aralkyl halide and then esterifying with an acid anhydride; in either case the halide anion may be replaced by that of another physiologically compatible acid.  In specific examples R1 is an acetyl or propionyl group and R2 is a p-bromobenzyl or 4-biphenylylmethyl group. Specification 808,926 is referred to.ALSO:The invention comprises pharmacological preparations containing compounds of formula <FORM:0979680/A5-A6/1> (see Division C2) wherein R1 is an aliphatic acyl radical having 2 to 5 carbon atoms, R2 is an aralkyl radical, and X- is the anion of a physiologically acceptable acid, in combination with a physiologically acceptable carrier.  Specified groups R2 are 4-biphenylylmethyl and 4-bromobenzyl groups. The active compounds have ganglion-blocking action, and the compositions may be used in forms suitable for oral or parenteral administration, e.g. tablets or ampoules.  An exemplified composition also contains ethyl urethane.  Specification 808,926 is referred to.
Patent GB-949263-A (GB)
Title: Starting circuit for remote-action equipments
IPC: H04Q9/14
Filed: 1961-12-07
Abstract: 949,263. Electric selective signalling systems. STANDARD TELEPHONES & CABLES Ltd. Dec. 7, 1961 [Dec. 8, 1960], No.43901/61. Heading G4H. Remote control equipment includes a polarised relay A having windings 3,4 and a bi-stable armature a, and in response to closure of one or more of contacts k1-k4 charging current which flows into capacitor 5 energizes winding 3 and operates armature a, following which a control pulse appears at terminal 2 and a pulse is applied to winding 4 so as to reset armature a. When one or more of the contacts k1-k4 are opened again, capacitor 5 discharges to energize winding 3, armature a is again operated and a resetting pulse is again applied to winding 4. To ensure reliable operation when more than one of contacts k1-k4 are operated simultaneously, resistors R1-R4 have high resistance values compared with R5 and differ from each other by powers of two.