baber/WOPTO huggingface dataset:
Patent GB-1258264-A (GB)
IPC: G01N30/52
Filed: 1968-12-30
Abstract: 1,258,264. Packing for gel permeation chromatography. MITSUBISHI KASEI KOGYO K.K. 30 Dec., 1968 [30 Dec., 1967], No. 61631/68. Heading B1X. [Also in Division C1] A packing material for use in gel permeation chromatography comprises an alumina or a mixture of aluminas having different pore size distribution peaks, the or each alumina having a particle size of 10 to 70 microns, a pore size distribution peak from 10 to 10<SP>5</SP> Angstroms, and a ratio of the bottom extent of the sharp portion of the pore size distribution to the distribution peak of less than 2. "Bottom extent" is defined as three times the distance (in Angstroms) between the points where the two sides of the triangle of the pore size distribution curve intersect the abscissa (see x and X 1  in Fig. 1) A mixture of packing materials of the invention having a controlled pore size distribution may be packed in a single column or a plurality of columns, or several types of packing materials of the invention may be packed in individual columns. The materials of the invention may also be used in combination with a conventional packing material such as cross-linked polystyrene. The molecular weight distribution of high molecular weight substances such as polyethylene, polystyrene, polyacrylate, polyurethane and polyvinyl alcohol may be determined using columns packed with the materials of the invention, and using solvents such as tetrahydrofuran, benzene, chloroform, trichlorobenzene, dimethyl formamide and water.
Patent GB-1265034-A (GB)
IPC: H04N1/403
Filed: 1970-01-02
Abstract: 1,265,034. Facsimile apparatus. XEROX CORP. 2 Jan., 1970 [8 Jan., 1969], No. 237/70. Heading H4F. The signal obtained from a photo-sensitive semi-conductor 10 on scanning an image is fed to a differential operational amplifier 20 provided with feedback circuitry such that signals below a selected value V R  are all represented by a single output V R  and signals above V R  and above or below a value V REF  are represented by an output V REF , thereby enabling, e.g., the intelligence on a document to be clearly distinguished from the background. The amplifier 20 is connected, via a D.C. restorer 44, 50, 56 which determines V R , to one input of a long-tailed pair 60, 62, resistors 82, 84 defining a reference potential V REF  at the other input. Thus depending on whether the signal at 60 is greater or less than V REF , a capacitor 64 is charged or discharged. Since the gain of amplifier 20 is defined by the ratio between the impedance in its feedback path and the impedance presented at its inverting input 24, i.e. resistance 26 divided by the effective drain-source impedance R DS  of a field effect transistor 30, and since R DS  varies according to the potential applied to the transistor gate electrode 34 by the capacitor 64, all signals above V R  are amplified to appear with an amplitude V REF  at an output 42. If the input at transistor 60 is much greater than V REF , transistors 72 and 74 conduct to speed the charging of capacitor 64.
Patent GB-1265740-A (GB)
IPC: G01S5/28
Filed: 1969-12-17
Abstract: 1,265,740. Position-finding by sound waves. HONEYWELL Inc. 17 Dec., 1969 [3 Jan., 1969], No. 61530/69. Heading H4D. The position of a body with respect to a submerged sound wave transmitter is determined by receiving the transmissions on the body by horizontal and vertical scanning. The body may be a vessel and the transmitter may be on a diver. In an embodiment each of several transmitters 1 on the sea bed transmits pulses of adjustable duration, repetition rate and carrier frequency which may be depth-coded. At the receiver a transducer 8 is scanned in azimuth and its electric signal output is fed to an amplifier 11 tunable to a transmitter carrier frequency. The output of variable-sensitivity detector 13 is applied via a gated peak signal detector 20 to (i) a meter 27, (ii) a voltagecontrolled A.F. oscillator 23 feeding, after amplification, into a loud-speaker 25 and (iii) an integrator 22 for partial automatic gain control. The output of an amplifier 15 is fed to cathode-ray tube (C.R.T.) 19, and to a cathodefollower 17 so that loud-speaker 25 produces a sound pulse to accompany the note of slowly changing frequency originating from oscillator 23. Transducer 8 is tilted by motor 28. C.R.T. 19 displays a signal on a rotating rectilinear time-base representing transducer azimuth and tilt angles, Fig. 2 (not shown).
Patent GB-1266780-A (GB)
IPC: C07D241/04
Filed: 1969-07-24
Abstract: 1,266,780. 2-Phenylpiperazine and 2-phenyl- 3-piperazinone derivatives. DONAU-PHARMAZIE G.m.b.H. 24 July, 1969 [26 July, 1968], No. 37313/69. Heading C2C. The invention comprises compounds of formula wherein X, Y and Z are each H, halogen, OH or C 1-5  alkoxy (possibly Ph-substituted), n is 1-3, R is di-(C 1-5  alkyl)-amino-C 1-5  alkyl, or is C 1-5  alkyl substituted by piperidino, pyrrolidino, piperazino, 4-C 1-5 -alkylpiperazino, 3-ketopiperazino or morpholino, and A-B is -PhCH-CO-, -PhCH-CH 2 -, -CO-CHPh- or -CH 2 -CHPh-, and their pharmaceutically acceptable acid addition salts. These compounds are prepared by (a) reducing the 1,4-disubstituted phenylpiperazinones to the phenylpiperazines, or (b) reacting together the appropriate (i) aralkyl halide and 1-R-phenylpiperazinone or 1-R- phenylpiperazine, (ii) R-halide and 1-aralkylphenylpiperazinone or 1-aralkylphenylpiperazine, (iii) R<SP>1</SP>H and 1-aralkyl-4-haloalkylpiperazinone or 1-aralkyl-4-haloalkylpiperazine. Starting materials otherwise prepared are 1-pchlorobenzyl - 2 - phenyl - 4 - acetoxyacetyl (and 2<SP>1</SP>-hydroxyethyl)piperazine. Therapeutic compositions for oral, parenteral or rectal administration comprise a pharmaceutical carrier and a compound of the above formula, which is an anticoagulant.
Patent GB-1266887-A (GB)
IPC: G01F23/24
Filed: 1968-11-13
Abstract: 1,266,887. Measuring liquid level electrically. K. J. WOOD. Nov.3, 1969 [Nov.13, 1968], No.53774/68. Heading G1N. A liquid level indicator includes a metal e.g. brass tube 5 apertured at 8 to allow ingress of the liquid and a temperature sensitive resistance element 2 mounted in the tube 5 in the form of a V. When the tube 5 is inserted in a liquid 9 e.g. the oil sump of a motor car, variation in current flowing through the resistance element due to cooling of the element by the oil is detected by the unbalancing of a bridge circuit which includes the element 2 in one arm thereof. In order to compensate for the effect of increase in temperature of the oil due to running of the engine adjacent arm R1 of the bridge is also mounted in tube 5, the effect of which is to tend to increase the out of balance current which would normally be falling due to the increase in temperature of the oil. By ensuring that a small portion of the resistance element 2 is not immersed in the oil 9 further temperature compensation is obtained since this forms a non-linear resistance. Thus the total effect of this non-linear resistance and resistor R1 is that both arms of the bridge are altered in the direction required for compensation. The effect of the non-immersed part of the element 2 is also to compensate for the effects of battery voltage variations.
Patent GB-1287912-A (GB)
IPC: H03K19/16
Filed: 1969-09-16
Abstract: 1287912 Circuits employing bi-stabis magnetic elements VSESOJUZNY INSTITUT NAUCHNOI I TEKHNICHESKOI INFORMATSII 16 Sept 1969 45531/69 Heading H3B In a magnetic logic element comprising at least two magnetic cores or two portions of a double apertured core 15, 16 to which information may be supplied via inputs 1, 2, the information at input 1 changes the magnetic state of one of the cores while a subsequent input at 2 restores the magnetic state and transmits the input information to an appropriate one of outputs 25-28. If it is desired to store a "0" at input 1, a signal is applied to terminal 3, while for a "1" terminal 5 is used. Similarly "0" and "1" signals at input 2 are presented to terminals 7, 9 respectively. If a "0" is applied to line 3-4 at input 1, the state of core 15 is switched. A subsequent "0" applied to line 7-8 of input 2 restores core 15 to its initial remanent state and appears as an output pulse at terminal 25. No signal can appear at terminal 27 because restoration of core 15 produces a pulses in winding 19 and back biases diode 31. Terminal 25 is thus a "00" output. Similarly, if a "0" were recorded on line 3-4 and a subsequent "1" on line 9-10, core 15 would be restored by the latter signal and diode 32 back biased so that a "01" output would appear at terminal 26. Terminals 27 and 28 likewise represent "10" and "11" outputs respectively. By connecting the outputs to the appropriate terminals of a gate, any one of sixteen possible logic functions may be effected For example, in an OR circuit, output "00" is connected to the gate "0" input and outputs "10", "11" and "01" to the gate "1" input. In an AND circuit, outputs "00", "01", "10" are connected to the gate "0" input, and output "11" to the gate "1" input. It is stated that more than one such function may be effected in combination, for example AND and exclusive OR circuits may together form a half adder. If the element is provided with a third core and input, two hundred and fiftysix logic functions are stated to be possible. Cores having two apertures may be used.
Patent GB-1289067-A (GB)
IPC: D06F71/36
Filed: 1971-05-24
Abstract: 1289067 Trouser presses J NIEHENKE [trading as SINRAM & WENDT] 24 May 1971 [31 July 1970] 16595/71 Heading D1A [Also in Division H5] A trouser press has two relatively movable pressing plates, at least one of them comprising a hardboard or other rigid backing plate 13, an elastic supporting layer 37 which deforms to hold an electric resistance heating element 25 in place, an insulating plastics material foil 35 and a pressing surface 20. Preferably an additional plastics material foil 40 and an aluminium heat reflecting foil 43 are also provided.
Patent GB-1290617-A (GB)
IPC: F23Q3/00
Filed: 1970-01-30
Abstract: 1290617 Piezo-electric igniters JUNKERS & CO GmbH 30 Jan 1970 [31 Jan 1969] 4465/70 Headings F4F and F4T In a combination of a rotary gas tap and a piezoelectric igniter, the latter comprises at least one piezoelectric crystal, and a hammer 19 stressed by a striker spring 20 for impacting the crystal, the hammer being cocked by the action of an arcuate spring 30 mounted on the shank of the gas tap and having a radial projection 301 which engages a lateral extension 191 of the hammer. As shown in Figs. 3 and 5, the arcuate spring may be coaxially mounted on the inner peripheral wall 312 of a sleeve 31 which fits over the shank (not shown) of the gas tap. A projection 301 of the arcuate spring extends through an opening 311 in the inner peripheral wall of the sleeve 31. When the gas tap, and hence the arcuate spring, is rotated into the ignition position, the projection 301 on the arcuate spring pushes a lateral extension 191 of the hammer 19, displacing the hammer against the action of the striker spring 20. In the ignition position, that is when the projection 301 overrides the extension 191, the hammer 19 is released, and, due to the action of the striker spring 20, hits a striker pin, which abuts against the piezoelectric crystal. An electrode is provided adjacent to the piezoelectric crystal, and is connected to a high tension cable which discharges the piezoelectric energy produced by the impact of the hammer. The gas tap can be turned from the ignition to the "off" position without obstruction by the projection 301 of the arcuate spring, because in this case the projection can easily slide across the extension of the hammer by virtue of the springing back of the arcuate spring into the sleeve. The igniter may comprise two piezoelectric crystals, one on each side of an electrode, the striker pin being positioned between one of the crystals and the hammer. An anvil provides an abutment surface for the end of the other crystal remote from the striker pin.
Patent GB-1295513-A (GB)
IPC: F15B13/02
Filed: 1970-02-13
Abstract: 1295513 Valves MITA MACCHINE INFIL. ZATRICI TABACCO AUTOMATICHE SARL 13 Feb 1970 [26 Feb 1969] 6985/70 Heading F2V Directional control valve device, for controlling the supply and exhaust of pressure fluid to and from external apparatus, consists of one or more spool valves 2 movable from a neutral position to connect utilization ports 8, 9 selectively with inlet 13 or with exhaust 14. A bypass valve 15 connecting the inlet directly with the exhaust is closed automatically when a spool valve is actuated. As shown, the two spools 2 are actuated by a cam lever 27 on a common shaft (26), Figs. 2 and 3 (not shown) with a lever 25 which operates a pilot valve 23 controlling the by-pass valve 15. Chambers 20, 21 of the pilot valve are in communication respectively with the exhaust 14 and inlet 13 and are placed selectively in communication with a chamber 17 behind the by-pass valve. Spaces which house the spool restoring springs 11 are vented at 30 to the exhaust 14.
Patent GB-1297824-A (GB)
IPC: B60B15/28
Filed: 1970-08-20
Abstract: 1297824 Vehicle wheels DEERE & CO 20 Aug 1970 [20 Aug 1969] 40171/70 Heading B7C  A weight for attaching to the disc of a vehicle wheel comprises a ring 12 having two identical centring parts, spaced less than 180 degrees (preferably 60 degrees) apart around the ring each part having a hook 26 extending axially from one side of the ring and a shoulder 28 extending axially from the other side, such that in use the hooks can be engaged with the shoulders of an adjacent identical ring to attach the rings together, there being on each side of the ring a respective groove 34, 36 extending obliquely to the transverse central axis of the ring, such that in use the corresponding grooves in two adjacent attached rings form a bore for receiving a clamp screw 44 for securing the two rings together. The rings are formed with recesses 14 through which bolts 22 pass for attaching the first ring to the disc of the wheel which may have shoulders for receiving the hooks 26 on the ring. Each ring has handle-like recesses 50 for gripping and two complementary noses 32 and recesses 30 to aid centring.
Patent GB-1306551-A (GB)
Title: Wheels for vehicles
IPC: B60B5/02
Filed: 1970-02-17
Abstract: 1306551 Vehicle wheels MOTOR WHEEL CORP 17 Feb 1970 7503/70 Addition to 1306552 Heading B7C A composite steel-and-plastics vehicle wheel comprises a steel wheel disc 12 and rim 10, and a plastics portion, 14 and 16, affixed to and covering at least a part of the outboard steel surfaces of the wheel, the outboard surface of the plastics portion having a different contour from that of the covered steel surfaces. The plastics portion comprises a wheel cover 14 of an acrylonitrile - butadiene - styrene polymer joined to the steel surfaces by a polyurethane foam 16. The cover is vacuum-formed and vacuum metallized or chrome-plated. The disc 12 is stamped, and the rim 10 is rolled from cold steel and the disc and rim are welded together. A frusto-conical steel sleeve 18, or 18<SP>1</SP>, Fig. 4, is inserted through a central aperture in disc 12 and secured either by a back-up plate or tack welding flanges 26 and 24 together. The outboard end 20 of sleeve 18 forms an interference fit with the radially inturned outboard end 36 of a hub portion 38 of the cover. A sheet metal or plastics ornamental hub cap 21, or 21<SP>1</SP>, Fig. 4, forms an interference fit with the sleeve 18 or 18<SP>1</SP>. Sleeve 18<SP>1</SP> has its outboard end 29 radially inturned to abut flange 36 instead of fitting therewithin. Hub cap 21<SP>1</SP> has spring fingers 52<SP>1</SP> for engaging flange 29. The plastics foam portion 16 is formed by spraying the appropriate steel surfaces with, or dipping them in, a solution of polyurethane, liquid resin, catalyst, and hardener.
Patent GB-1321614-A (GB)
Title: Method of and apparatus for synchronising the operation of the injectors of a mixing head of a polyurethane or similar mixing device
IPC: B29B7/76
Filed: 1969-10-13
Abstract: 1321614 Proportioning mixture constituents PRESSED STEEL FISHER Ltd 13 Oct 1970 [13 Oct 1969] 50168/69 Heading B1C The injection nozzles 26, 27 of a mixing head (11, see Fig. 1, not shown) for polyurethane foam ingredients are fed by pumps 16, 22 driven through clutches 20, 21 controlled by timers 28, 29. In order to equalize the periods of operation of the injection nozzles the discharge from them is caused to strike plates 34, 35 which in conjunction with strain gauges 36, 37 and a bridge circuit 38 detect and display the time differences between the discharges at their commencement and cessation. Manual correction may then be applied to the time relays 30, 31 and 32, 33 to synchronize the discharges. The strain gauges may be replaced by microphones, or the plates may be replaced by light sensitive devices. In a modification, Fig. 3 (not shown), the bridge circuit (44) may adjust the time relays automatically.
Patent GB-1324680-A (GB)
Title: Pyrazine flavouring material
IPC: A23L25/10
Filed: 1971-04-19
Abstract: 1324680 Flavouring INTERNATIONAL FLAVORS & FRAGRANCES Inc 19 April 1971 [3 Aug 1970] 48702/72 Divided out of 1310771 Heading A2B [Also in Divisions A5 and C2] Foodstuffs are flavoured with 2-acetyl-3- ethylpyrazine.
Patent GB-1326023-A (GB)
Title: Polyamides
IPC: C08G69/26
Filed: 1970-09-30
Abstract: 1326023 Copolyamide BP CHEMICALS INTERNATIONAL Ltd 30 Sept 1970 [24 Oct 1969] 52194/69 Addition to 1228761 Heading C3R In a copolyamide at least 80% of the units are derived from (a) both iso- and tere-phthalic acids, (b) hexamethylene diamine and isophorone diamine, and (c) dodecamethylene diamine or 12-aminododecanoic acid and of these (c) provides 4 to 15% of the total polyamide units, isophorone diamine provides 5 to 50% of the total diamine units, and hexamethylene diamine constitutes at least 50% of the diamine mixture (b). The invention modifies that of the Parent Specification 1,228,761 by including the specified proportion of units (c) to provide improved impact strength. The same preparatory methods, additional units, chain terminators and colour stabilizers as are used in the Parent Specification may be employed and the products have similar uses. Examples describe copolymers from the following molar ratios of the monomers isophthalic acid: terephthalic acid: hexamethylene diamine : isophorone diamine : dodecamethylene diamine : 12-aminododecanoic acid:- (1) and (2) 30 : 20 : 30 : 10 : 10 : 0; (3) 30 : 20 : 22À5 : 12À5 : 15 : 0; (4) 28À5 : 18À9 : 35À8 : 11À9 : 0 : 4À9 and (5) 24À7 : 20À2 : 32À7 : 12 : 0 : 10À4. Ammonium hypophosphite is used as colour stabilizer in all examples and benzoic acid is added as molecular weight regulator in all except Example 3. Reference is made to Specification 1,266,864. Reference has been directed by the Comptroller to Specifications 976,007, 977,868, 1,096,908 and 1,100,972.
Patent GB-1331990-A (GB)
Title: System for trans-transmitting data
IPC: G08B25/00
Filed: 1970-12-30
Abstract: 1331990 Transistor bi-stable switching circuits SEISMOGRAPH SERVICE CORP 30 Dec 1970 61857/70 Heading H3T [Also in Division G4] In a system for monitoring a parameter at a remote point, sensing means 26, arranged to respond to changes in said parameter, are connected to a control transistor Q 1 which turns on a switching transistor Q3, feeding power to transmitting equipment 14 following a change in said parameter, the switching transistor Q3 being switched off by a signal from 14 after the change has been reported. As described, sensing contacts 26 may be responsive to pressure or flow in an oil or gas field and control the charge on capacitor 42 from battery 20. Transistors Q1 ... Q3 are normally non-conductive so as to consume no power from battery 18. A change in charge on capacitor 42 in the positive direction will be passed via diode 46 to the base of transistor Q1 so as to turn on all three transistors Q1 ... Q3 and pass a signal from battery 18 to reporting equipment 14. Transistor Q2 is so connected that the circuit remains conductive despite further changes in the charge on capacitor 42 until reporting equipment 14 has transmitted its signal when a stop pulse is fed to Q1 so as to turn off the three transistors Q1 ... Q3. Negative-going changes are similarly passed via diode 52 to the emitter of Q1.
Patent GB-1333400-A (GB)
Title: Station for a moulding machine
IPC: B29C45/04
Filed: 1969-10-29
Abstract: 1333400 Injection moulding machine FORTIN-LATCHFORD Ltd 26 Oct 1970 [29 Oct 1969] 10174/73 Divided out of 1333399 Heading B5A The subject matter of this Specification is identical with that of Specification 1,333,399, but the claims are directed to the moulding station formed by the mould parts 50, 52 and the injection piston 188 actuated by the cam 28.
Patent GB-1333629-A (GB)
Title: Preparation of organic phosphorothionyl sulphides
IPC: C10M137/10
Filed: 1972-02-25
Abstract: 1333629 Preparing diorgano-phosphorothionyl sulphides ESSO RESEARCH & ENG CO 25 Feb 1972 [17 March 1971] 7077/71 Heading C2P [Also in Division C5] A phosphorus-containing polysulphide of the formula is reacted with an organic phosphite of the formula (R<SP>5</SP>O)(R<SP>6</SP>O)P(OR<SP>7</SP>) to form a sulphide having less sulphur per molecule and having the formula respectively where n is an integer of 2 or more, m is an integer less than n, R<SP>1</SP> to R<SP>7</SP> are similar or dissimilar hydrogen- and carbon-containing groups and A<SP>1</SP> and A<SP>2</SP> are divalent hydrogen- and carbon-containing groups.. The hydrogen- and carbon-containing groups may be. aromatic or aliphatic and the groups R<SP>1</SP> to R<SP>4</SP> may contain interrupting oxygen atoms. The reaction also yields as by-product a phosphorothionate ester of the formula (R<SP>5</SP>O)(R<SP>6</SP>O)P(S)(OR<SP>7</SP>) which may be separated from the sulphide formed by, eg. solvent extraction or distillation. The reaction may be' carried out in a solvent, e.g. a hydrocarbon or mineral oil. In examples bis-(dicresyl phosphorothionyl)disulphide is reacted with triphenyl and tributyl phosphate respectively and bis-(diisobutyl)phosphorothionyl disulphide and bis - diphenyl - and - bis - di - (octylphenylphosphorothionyl)disulphide respectively are reacted with triphenyl phosphite to give in each case a product of lower sulphur content. The products are useful as additives for lubricants. The disulphide starting materials (n = 2) may be obtained by reacting an alcohol, phenol or diol with P 2 S 5  to form a dithiophosphoric acid diester and then reacting the latter with an oxidizing agent, e.g. H 2 O 2 , I 2 , HNO 2 , a sodium hypohalite, or with dimethylsulphoxide. The tri- and tetra-sulphides can be obtained from the dithiophosphoric acid diester by reaction with SCl 2  or S 2 Cl 2  respectively.
Patent GB-1334425-A (GB)
Title: Fluid-tight  thrust bearing for the drive shafts of pumps
IPC: F01C21/02
Filed: 1971-01-22
Abstract: 1334425 Rotary positive-displacement pumps L G HEIJMER 22 Jan 1971 3028/71 Heading F1F [Also in Division F2] A fluid-tight thrust bearing for the driveshaft of a Moineau-type pump comprises two concentric rings 20, 21 disposed one within the other, the rings being screwed together at one end. The outer ring 20 engages the cylindrical surface of a ground bore 24 in the wall of the pump, and is axially but not rotationally displaceable in the bore. The outer surface of the ring 20 has a circumferential slot 25 for receiving an O-ring. The inner surface of the outer ring provides a journal bearing surface for the driveshaft and is provided with at least three slots 26-28 for receiving O-rings which engage with the shaft. The inner ring has a cylindrical portion 29 which extends into the outer ring with a radial clearance from the inner periphery of the outer ring so as to define an annular cavity in which is located a bearing ring 31 which is resiliently pressed against the end face of the shaft which extends into the cavity. The bearing ring may be of PTFE and is pressed against the shaft by springs 34 which are mounted in a radial flange of the outer ring and act on a shoulder of the wall of the pump so as to urge the bearing ring towards the drive-shaft.