baber/WOPTO huggingface dataset:
Patent GB-1264704-A (GB)
IPC: H04M3/58
Filed: 1969-05-21
Abstract: 1,264,704. Automatic exchange systems. TELEFONAKTIEBOLAGET L. M. ERICSSON. 21 May, 1969 [22 May, 1968], No. 25874/69. Heading H4K. A programme controlled exchange system, in which a complete record of each established connection is held in store, uses one of a group of three-port access circuits in a new path set up in substitution for an existing connection when access to that connection is required for any reason. The invention is described primarily in respect of supervising pay stations and is set out as an algorithm showing the programme sequences in association with call store access. From the point of identification of a pay station originating a call an access circuit is seized and associated with a supervisory circuit while providing a path to a register. As soon as routing digits have been dialled and the charging rate has been determined the supervisory circuit is released. When the wanted party is known the connection is established and, on reply, a transmission relay set is seized and is used to set up a speech path, the original connection using the access circuit being discarded. A timing function written into the programme counts out the period of prepayment which when expired precipitates re-seizure of an access circuit associated with a supervisory circuit and the substitution of a speech path using this access circuit in place of the existing path employing the transmission relay set. Warning tone is sent to the pay station and, failing a suitable determination of prepayment, the connection is released. The invention may also be employed to provide an operator's break-in facility; to provide a facility whereby a busy subscriber is sent a tone indicating that he is wanted by a further party to whom he may transfer by dialling a digit; to provide a call transfer facility; to provide access to a recording machine; and with multi-port access circuits to provide conference facilities. A three-port access circuit is described and involves the use of three relays. The facilities to be connected over the access circuits may be connected to the access circuits over switching stages. The access circuits may be reached over the line and group switching stages and may be available over a separate switching stage.
Patent GB-1265598-A (GB)
IPC: B29C48/08
Filed: 1970-06-15
Abstract: 1,265,598. Extruding thermoplastic films. TORAY INDUSTRIES Inc. 15 June, 1970 [17 June, 1969; 25 July, 1969], No. 28846/70. Heading B5B. A film of thermoplastics material is extruded from an extrusion die on to a cooled surface which, at the point of contact with the film, is moving substantially perpendicularly to the plane of extrusion of the film, and the film is then removed from the surface. If t is the thickness of the undrawn film and t 0  the perpendicular distance from the mouth of the extrusion die to the cooled surface, then the equation: holds, preferably, however, In the preferred embodiment of the apparatus, illustrated in Fig. 1, the cooled surface is the surface of a rotating drum 3, around which the film is passed before being led away over roller 8. The drum 3 is at a temperature of from 20 to 80 C., preferably 30 to 60 C., and moves at a peripheral velocity of less than 25 m./mm. and has a width of from 3 to 50 mm, preferably 5 to 20 mm, and a diameter of between 500 and 2000 mm.  The face 13 of the die, which faces in the direction of rotation of the drum, makes an angle 0 with the lower surface 11 of the extrusion die, where # < 30 degrees and rises to a maximum height H from the surface 11 such that H, as measured in the direction of extrusion, is greater than 3 mm. The centre of rotation O 1  of the drum 3 is displaced by half of the width S of the slit 2 from the centre line C of the slit in the direction of movement of the top of the drum. Any film-forming thermoplastic material may be used but polyethylene terephthalate of viscosity from 1800 to 2500 poise and polypropylene of viscosity from 4000 to 5500 poise, the viscosities being those at the slit 2, are the preferred materials.
Patent GB-1288668-A (GB)
IPC: B66C23/60
Filed: 1970-07-17
Abstract: 1288668 Ships derricks R HAUGEN 17 July 1970 [19 July 1969] 34787/70 Heading B8B Ships loading apparatus comprises a pair of booms 1, 2 attached by goose-necks 3 to respective posts 4, 5 each with a respective top rope 6, 7 and with preventer ropes 19, 20 extending from the peak of boom 1 to attachment points 21, 22. Runners 14, 15 are connected to a common load hook 18. A rigid spar 13 interconnects the booms 1, 2 at their peaks 8, 9. Operation of the top ropes 6, 7 and of the runners 14, 15 enables the apparatus to serve a quadrangular area, Fig. 2 (not shown). The two posts 4, 5 may be replaced by a mast (not shown).
Patent GB-1289566-A (GB)
IPC: H03K3/57
Filed: 1970-09-08
Abstract: 1289566 Automatic voltage control THOMSON CSF 8 Sept 1969 [9 Sept 1969] 43028/70 Heading G3R [Also in Division H3] The magnitude of a sawtooth waveform, which is generated in the secondary 21 of a transformer when its primary 22 is energized with square waves, is kept constant by measuring the waveform by a potential divider R1, R2, applying the measurement to a "boxcar circuit" 29 and then to a comparator 28 which is also supplied with a reference value 281, amplifying the error at 27 and using this to regulate the operating time of a monostable multi-vibrator 25 controlling a chopper 36 connected to a voltage source 24 and hence the duration of the square waves. The sawtooth waveform is used in a pulse generator, e.g. for a magnetron (see Division H3)
Patent GB-1297575-A (GB)
IPC: A61B19/00
Filed: 1970-07-24
Abstract: 1297575 Clamps CODMAN & SHURTLEFF INC 24 July 1970 [25 July 1969] 35988/ 70 Heading E2B A clamp 10 for surgical towels comprises a one piece plastics moulded element having two substantially straight arms 11, 12 connected by an arcuate portion 13 to yieldingly maintain the arms at a predetermined spacing, each arm having a jaw 14, 15 at the end thereof. A toothed rack 21 extends inwardly from one arm and a locking member 27 from the other, the rack 21 and locking member 27 interengaging when the jaws 14, 15 are urged towards one another into their clamping relationship. The locking member 27 may be provided with a lever 29 to facilitate release of the jaws 14, 15. The rack 21 is formed in two parallel spaced parts (Figs. 7, 9, not shown) which may or may hot be connected respectively, so that a groove is formed therebetween, the locking member 27 having a guiding leg 30 which co-operates with the groove to prevent any twisting of the clamp 10. As shown the jaws 14, 15 are offset from the axes of the arms and comprise complementary concave-convex surfaces although the jaws may comprise pointed members (Fig. 10, not shown).
Patent GB-1311884-A (GB)
Title: Light-sensitive silver halide photographic materials incorporating
IPC: G03C1/83
Filed: 1969-05-30
Abstract: 1311884 Photographic silver halide materials containing developing agent and filter dye AGFAGEVAERT 18 May 1970 [30 May 1969] 27576/69 Heading G2C A light-sensitive material comprises a transparent hydrophobic film support, at least one light-sensitive silver halide emulsion layer, a silver halide developing agent or agents present in such emulsion layer or in a colloid layer in waterpermeable relationship with the emulsion layer and a filter dye in a water-permeable colloid layer, the dye having the formula:- wherein p is 1, 2 or 3; each of R 1  and R 2  is optionally substituted aryl; and M is a cation. The material may contain hydroquinone and/or a 3- pyrazolidinone developing agent. The silver halide emulsion may be a silver chloride, silver chlorobromide, silver chloroiodide or silver chlorobromoiodide emulsion, such emulsion containing at least 90 mole % silver chloride. The filter dye may be in an antihalation layer between the support and the light-sensitive silver halide emulsionlayer(s) or on the other side of the support. The exposed material may be developed and stabilized and/or fixed, each treatment lasting less than 1 minute, preferably 2-8 seconds. Development or stabilisation may be effected in less than 15 seconds at ambient temperature. Stabilisation may be followed by fixing and washing treatments. All the developing agent(s) may be in the material and development may be effected with an alkaline activating solution. The material may be rapidly processed without leaving stains in the processed material.
Patent GB-1316841-A (GB)
Title: Piston seal assembly
IPC: F16J15/16
Filed: 1970-03-31
Abstract: 1316841 Piston packing HALLITE HOLDINGS Ltd 19 April 1971 [31 March 1970] 15247/70 Heading F2T Piston packing comprises an elastomeric sealing ring 3 having a portion 5 tapering toward the cylinder 1 and axially located between and abutting two rings 6 of material harder than that of the ring 3, which ring is of a conformation such that it can be stretched to be fitted over the piston head. The ring 3 is housed in a groove 4 in the piston 2 and each harder ring 6 is housed in a shallow groove 7 and has a frusto-conical end face 8 abutting the tapered portion 5 of ring 3. In a modification, Fig. 2, the harder rings 10 have flanges 11 abutting the ends of the base portion of the sealing ring 9 and housed therewith in the groove 4. The sealing ring may be of nitrile rubber, polyurethane, neoprene, fluorocarbon or ethylene propylene and the harder rings, which may be split, may be of steel, cast iron, brass, nylon, acetate resin, fabric-reinforced rubber or phenolic resin.
Patent GB-1322731-A (GB)
Title: Apparatus for extracting fastening members from a base
IPC: E01B29/26
Filed: 1969-05-27
Abstract: 1322731 Spike extractor PERMANENT WAY EQUIPMENT CO Ltd 24 Aug 1970 [27 May 1969] 26664/69 Heading B4W Apparatus, for example, for removing fastening spikes from a railway sleeper comprises an hydraulic ram 1 having a cylinder 2 and a piston 3, an extractor member 8 connected to pistonrod 4, and extension members 5 or a hollow extension member secured to the cylinder and partly surrounding the extractor member. The cylinder has ports a, b and c which are connected to ports A, B and C of a spool valve 9. The valve also has ports Y, Z connected respectively to a fluid pump and a tank. In operation starting from a position where the piston is positioned at the right hand end of the cylinder, pump pressure forces the piston to the left due to unequal pressurized areas on either side of the piston. Fluid flow is shown by the solid arrows. When the piston reaches the left hand end of the cylinder flow through ports a A stops. A notch X in the piston-rod 4 connects ports b and c so that fluid pressure is exhausted to the tank. When extractor member 8 is connected to a spike 7 spool 12 is moved to the right, see Fig. 2 (not shown), so that ports a A are connected to the tank, ports c C are effectively closed and ports b B are connected to the pump. The piston 3 is thus moved to the right and the spike 7 is extracted. In a modification the spool 12 can occupy a neutral position in which pressure fluid flows from the pump through the valve to the tank. Another modification is that extension members 5 are shaped to axially guide the extractor member 8.
Patent GB-1324638-A (GB)
Title: Circuit arrangements
IPC: G11C27/04
Filed: 1969-11-15
Abstract: 1324638 Storage integrators PLESSEY CO Ltd 10 Nov 1970 [15 Nov 1969] 56030/69 Heading G4G A circuit arrangement which may be used either as an integrator which can be reset to a desired reference level, or to hold a sample signal at an unchanged value until the next sampling, includes amplifiers 1 and 2 connectible through an anti-phase switch pair 5 and 6 to an output terminal 8, with feedback paths 9 and 10, of which the latter includes the capacitor 11 of a capacitor-resistor integrator 11, 12. To operate as a resettable integrator, switches 5 and 6 are closed and opened respectively by a signal applied over line 4, and an input signal is applied  to the amplifier 1 such that the desired "set" level appears at terminal 8 and is applied to the input terminal 13 of the amplifier 2, the capacitor 11 changing to the "set" level through the resistor 12. The positions of switches 5 and 6 are now reversed by a further signal on line 4, whereafter a signal applied to terminal 14 is integrated with reference to the "set" level. Further reversal of switches 5 and 6 permits the reapplication of a "set" signal to the capacitor 11. To operate in the sample hold mode, the signal to be sampled is applied to terminal 16 with switch 5 closed and switch 6 open, to appear at terminal 8 and be applied, by charging capacitor 11, to input terminal 13 of the amplifier 2. When the switch positions are then reversed, the sampled signal is maintained substantially constant at terminal 8, by boot-strap operation of the integrator network 11, 12 and amplifier 2, until a further sample is taken. As described, amplifiers 1 and 2 are each formed by two transistors connected as a long-tailed pair, while the amplifier 7 is formed by two transistors connected as a Darlington pair (Fig. 2, not shown), and the switch arrangement 5, 6 includes a pair of transistors having their base contacts connected through a pair of back-to-back diodes (Fig. 3, not shown). Two Fig. 1 circuits arranged in series may be employed to process the signals from a photodiode matrix array the diodes of which require equal recharge energies after equal exposure to light but vary in the peak recharge voltage required, by integrating each recharge pulse and sampling the resulting signals (Figs. 4 and 5, not shown); this arrangement furthermore permits a faulty element of the array to be compensated for by arranging that the output from the element preceding the faulty one is held for twice the normal period. In further applications, differences in the delay of a plurality of delay lines, utilized in simulating a multi-line scan by a single-line scanner, are compensated for by including a Fig. 1 circuit operating in the sample-hold made in series with, and after, each delay line, and, simultaneously pulsing all the sample-hold circuits at a time when the signals derived from all the delay lines are contemporaneous (Figs. 6 and 7, not shown); and two pairs of sample-hold circuits may be connected to operate as J-K flip-flops to define a shift-register.
Patent GB-1331295-A (GB)
Title: Ultrasonic transducers
IPC: A01M29/18
Filed: 1970-09-23
Abstract: 1331295 Ultrasonic transducers ELECTROMECHANICAL DESIGN Ltd 23 Sept 1970 45353/70 Heading H4J An ultrasonic transducer for repelling rodents comprises an annular piezo-electric crystal 1, having electrodes on its inner and outer curved surfaces and arranged to vibrate in a circumferential mode, the crystal being fitted inside a cup-shaped radiating member 9 and attached to support screens 5, 8. A further cup 4 may be fitted within the crystal which may be barium titanate, lead zirconate &c., and the cup 4 is designed to resonate at a common frequency with cup 9 in the range 20-50 Kc/s, without standing waves being formed. Suitable cup material is polystyrene plastics. Amplitude tuning adjustment is provided by the tightness of nut 10 on stud 8a. If cup 4 is not present, suitable means are provided to brace the crystal 1 against the vibration absorber 8. In another arrangement, absorber 8 passes through cup 9 and a plastics plate 11 is used to bear on the base of this cup to urge it into contact with the crystal. In a further alternative arrangement, two pairs of cups may be secured coaxially on a common support to face in opposite directions, a crystal being provided for each pair.
Patent GB-1345799-A (GB)
Title: Electrical push button arrays
IPC: H03K17/98
Filed: 1971-06-16
Abstract: 1345799 Key senders STANDARD TELEPHONES & CABLES Ltd 16 June 1971 28129/71 Heading H4 [Also in Divisions G1 G4 and H1] In a co-ordinate array of push-button capacitive switches for use, e.g. in a telephone, each push-button switch comprises pushbutton 10 in an aperture in the assembly housing, a shank 11 extending through apertures in rigid insulating plate 12 and rubber dustsealing sheet 15, and a capacitor plate 16 aligned with a pair of co-planar electrodes 18, 19 formed, e.g. by printed circuit techniques on insulating surface 17 and covered by insulation 20. The change in capacitance between electrodes 18 and 19 occurring when plate 16 is brought into proximity by depressing button 10 against the bias of spring 13 may be detected by a circuit (Fig. 3) comprising MOS transistors T 1 , T 2  in series with two antiphase clock pulse supplies #, # so that they conduct alternately. Oscillator 5 may be part of the chip carrying the circuit. The output of transistors T 1 , T 2  is connected to one of electrodes 18 or 19 the other being earthed and in Fig. 3, C 1  represents the capacitance between 18 and 19 in the rest condition and C 2  the additional capacitance when the button is depressed. In the rest condition the time constant is relatively short and when the node voltage exceeds the threshold voltage of transistor T 4  the latter conducts, and at Q a square waveform is present whose amplitude varies between O and V DD . When C 2  is included in the circuit the time constant is such that the threshold voltage of T 4  is never reached and a direct voltage near to V DD  is present at Q. The two conditions are discriminated by subsequent circuitry.
Patent GB-1347443-A (GB)
Title: Simulated human milk
IPC: A23C9/146
Filed: 1972-07-24
Abstract: 1347443 Human milk substitute AKADEMIE DER WISSENSCHAFTEN DER DDR 24 July 1972 34499/72 Heading A2B Artificial human milk comprises a liquid, e.g. whey, from which weak, acid anions have been removed, e.g. by an ion exchange resin, a protein obtained by precipitation at the isoelectric point between pH 4.4 and pH 5.1, fats, vitamins, minerals, and lactose in an amount sufficient to give 6-8% thereof in the simulated milk. The protein may be obtained from skim milk and may be precipitated more than once. The pH may be adjusted by using HCI. Saccarose and/or starch products may also be present. The milk may be spray dried for storage, the lactose being added either before or after spray drying.
Patent GB-1351744-A (GB)
Title: Building constructions including ventillators or opening windows
IPC: F24F7/00
Filed: 1970-04-21
Abstract: 1351744 Ventilators ARCHITAL LUXFER Ltd 19 April 1971 [21 April 1970] 18881/70 Heading F4V [Also in Division E1] A wall or roof construction comprises main elongate parallel members 10 supporting the edges of glazing or other panels 11 and a ventilator or opening window including an outer fixed frame and an inner pivotally mounted frame, each pair of adjacent jambs 15, 19 of the frames being formed by channel shaped members open towards one another, sealing elements 40 held by the sides 30 of the members 15 or 19 and engageable with the sides of members 19 or 15, respectively and at least one outer frame member 18, 17 being formed with a channel 24 or a shoulder 22 to engage directly with the edge of an adjacent panel 11. The inner frame pivot axis is horizontal and either central at 6 or along the frame upper edge. The inner frame pivot bearings 43, 44 are made of nylon. In another embodiment (Fig. 6) the jambs (55) of the outer frame also form the main supporting members. The frame members are interconnected by nails or screws received in channels 8, 32.
Patent GB-1352414-A (GB)
Title: Histidine derivatives
IPC: C07D233/54
Filed: 1971-04-28
Abstract: 1352414 Histidine derivatives TANABE SEIYAKU CO Ltd 28 April 1971 12019/71 Heading C2C The invention comprises novel compounds (II) and a process for making therapeutic compound (I) according to the following reaction scheme, i.e. via compounds IV, VI and the free amine corresponding to IV (X is o-nitrophenylsulphenyl, p-methoxybenzyloxycarbonyl, tert.-amyloxycarbonyl or tert.- butoxycarbonyl, R is H or C 2-7  alkoxycarbonyl and Y is a protective group, e.g. benzyloxycarbonyl, p-methoxybenzyloxycarbonyl, tert.-butoxycarbonyl and tert.-amyloxycarbonyl). II are made by tosylating the appropriate compounds (R is also alkyl) which are themselves prepared by introducing the acyl group X into histidine esters. II are also isolated as salts with dicyclohexylamine. The free amine corresponding to (IV) is also isolated as the trifluoroacetate salt. Pharmaceutical preparations useful as a thyroid gland stimulating factor contain (I) as active ingredient; administration is, e.g. parenterally.
Patent ID-24333-A (ID)
Inventor: BECHER FRANK
IPC: A61K9/70
Filed: 1998-09-18
Abstract: According to the invention, denaturing agents are added to a transdermal therapeutic system to prevent misuse in the form of unauthorised oral application.
Patent ID-30028-A (ID)
Inventor: HOFMANN JORG
IPC: C08G65/10
Filed: 2000-01-31
Abstract: The invention provides new double metal cyanide (DMC) catalysts for preparing polyetherpolyols by the polyaddition of alkylene oxides to starter compounds which contain active hydrogen atoms, wherein the catalyst comprises a) double metal cyanide compounds, b) bile acids or their salts, esters or amides and c) organic complex ligands. The catalysts according to the invention show greatly increased activity during preparation of a polyetherpolyol.
Patent IL-103169-A (IL)
Title: Animal feed supplement based on fermentation broth amino acid its production and its use
IPC: A23K1/16
Filed: 1992-09-15
Abstract: 2.1. Fermentative preparation of amino acids for animal feed supplement purposes is a complex process, since the amino acid is present in the fermentation broth at only a few percent. Drying the crude fermentation broth and using it as such generally led to aggregating sticky products or to products having too low a supplementary amino acid content. Using the new animal feed supplement and preparation process, a supplementary amino acid is intended to be made available which is not too expensive, not excessively hygroscopic or sticky, and whose contents can be standardised. 2.2. The animal feed supplement is based on a fermentation broth and contains the majority of its components, if required, with the exception of part of the biomass. Preferably, the biomass is present at no more than 10 % by weight of the dry matter. Proteins are preferably present at up to a maximum of 10 % by weight. For the production, during fermentation, at least towards the end, the sugar content is adjusted to a value of at most 4 g/l and during further processing, if required, at least a part of the biomass is separated off. 2.3. Supplementation or preparation of animal feed agents or premixes, in particular containing lysine.
Patent IL-113851-A (IL)
Title: Continuous method of grinding pharmaceutical substances
IPC: A61K49/04
Filed: 1995-05-25
Abstract: A continuous method of preparing submicron particles of a therapeutic or diagnostic agent comprises the steps of continuously introducing the agent and rigid grinding media into a milling chamber, contacting the agent with the grinding media while in the chamber to reduce the particle size of the agent, continuously removing the agent and the grinding media from the milling chamber, and thereafter separating the agent from the grinding media. In a preferred embodiment, the grinding media is a polymeric resin having a mean particle size of less than 300  mu m. In another preferred embodiment, the agent, grinding media and a liquid dispersion medium are continuously introduced into the milling chamber. In a further embodiment, the agent and grinding media are recirculated through the milling chamber. The method enables the use of fine grinding media, e.g., of a particle size of less than about 300  mu m, in a continuous grinding process which provides extremely fine particles of the agent, e.g., particles less than 100 nm in size, while avoiding problems, e.g., separator screen plugging, associated with prior art processes requiring the separation of agent from the grinding media in the milling chamber.