baber/WOPTO huggingface dataset:
Patent GB-1237953-A (GB)
IPC: C08G69/16
Filed: 1968-11-08
Abstract: 1,237,953. Polymerizing caprolactam. BADISCHE ANILIN- & SODA-FABRIK A.G. 8 Nov., 1968 [11 Nov., 1967], No. 53025/68. Heading C3R. At least the final stages of the hydrolytic polymerization of caprolactam at 120‹ to 360‹ C. in the presence of a polymerization catalyst and/or regulator is carried out at a pressure above 2000 atmospheres gauge to give a product of relatively low residual monomer and oligomer contact. The high pressure may be applied (a) throughout the process, or (b) in the second stage of a 2-stage process the first being at atmospheric pressure in a stream of nitrogen, at autogenous pressure (about 80 atmospheres), or at slightly increased pressure (e.g. 100 atmospheres), or (c) in the after-treatment of previously obtained polymer. Specified conventional regulators are acetic, propionic, butyric, stearic, adipic and sebacic acids and hexa- and octa-methylene diamines. Specified catalysts and accelerators are phosphorus oxyacids, hydrogen halides, sulphuric and sulphonic acids and aminoacids and diacid-diamine salts. Polymerization may be effected in the presence of filler or pigments, e.g. SiO 2 , TiO 2 , glass fibres or asbestos.
Patent GB-1257632-A (GB)
IPC: B60S1/08
Filed: 1968-05-15
Abstract: 1,257,632. Thermal switches. OTTER CONTROLS Ltd., and J. C. TAYLOR. 3 Feb., 1969 [15 May, 1968], No. 23157/68. Heading H1N. [Also in Divisions A4 and H2] A snap acting thermally responsive switch comprises an E-shaped bimetallic plate 7 having its outer limbs 10, 11 welded to arms (12) 13 on member 6, the member 6 being mounted on plastics base 1. An adjusting screw 14 allows the operating characteristics of the switch to be adjusted. The centre limb 9 of the plate 7 carries contacts 15. A heater 8 may be wound on the bimetallic member or separately as shown.
Patent GB-1265672-A (GB)
IPC: A61F2/06
Filed: 1969-03-14
Abstract: 1,265,672. Surgical prostheses. ETHICON Inc. 14 March, 1969 [15 March, 1968], No. 13573/69. Heading A5R. [Also in Division C3] A surgical prosthesis formed entirely of collagen comprises a piece of collagen fabric with collagen fibrils therein orientated biaxially. The prosthesis may be made by swelling a fabric of collagen tape or multifilament in an acid solution which may contain swollen collagen fibrils. The fabric is then frozen and lyophilized to form a porous sponge, impermeable to blood, and with the fibrils orientated in the directions of the collagen strands of the fabric, i.e. substantially perpendicularly.
Patent GB-1266192-A (GB)
IPC: G03G15/04
Filed: 1969-04-02
Abstract: 1,266,192. Exposing electro-photographic materials. FUJI SHASHIN FILM K. K. April 2, 1969 [April 2, 1968], No.17240/69. Heading G2H. A frame 1 for retaining electro-photographic sheets 5 during charging and exposure has a layer 3 of a material which has similar charging characteristics to the sheet 5 to provide for uniform charging. The composition and thickness of the layer 3 is so chosen that a relatively rapid charge decay occurs with respect to the photo-conductive layer 7 of the sheet 5. Thus, the frame is discharged before the next charging step to ensure uniform charging of the sheet being charged.
Patent GB-1266320-A (GB)
IPC: C08F10/00
Filed: 1970-06-10
Abstract: 1,266,320. Copolymers. FARBENFABRIKEN BAYER A.G. 10 June, 1970 [24 June, 1969], No. 28037/70. Heading C3P. Stable copolymer latices are formed in which the copolymer is formed from (a) 2-10% of a water soluble, e.g. ammonium, salt of maleic or fumaric acid, (b) 13-60% of ethylene and (c) 38-85% of vinyl chloride. The monomers including a fourth monomer if desired and ethylene being present in an amount of 1À5-200 times the amount to be reacted, are fed to the bottom of a reactor with 1À5-20 times the weight of (a) and (c) of an aqueous phase containing initiator and optionally buffer at pH 4-8, 20-100‹ C. and above 50 atms. pressure to give a vinyl chloride conversion above 50% and removing latex and unreacted monomers at the top. Emulsifiers are preferably absent. The latices are used for coating or impregnating or the copolymer separated and used in solution.
Patent GB-1285267-A (GB)
IPC: C07D239/545
Filed: 1970-07-29
Abstract: 1285267 Pyrimidinylthioureas BAXTER LABORATORIES Inc 29 July 1970 [13 Aug 1969] 36606/70 Heading C2C Novel pyrimidinylthioureas of the general formula wherein X is O or S and R is a C 1-4  alkyl, allyl, methallyl or phenyl group, are prepared by reaction of 6-amino-1,3-dimethyluracil or 6- amino-1,3-dimethyl-2-thiouracil with an isothiocyanate of the general formula RNCS. Pharmaceutical compositions having central nervous system anti-depressant activity comprise, as active ingredient, a pyrimidinylthiourea of the first general formula above, together with a diluent or carrier, and may be administered orally, intravenously or intraperitoneally.
Patent GB-1295040-A (GB)
IPC: C07C213/00
Filed: 1970-12-10
Abstract: 1295040 Chalcone derivatives DAINIPPON PHARMACEUTICAL CO Ltd 10 Dec 1970 [17 Dec 1969] 58634/70 Heading C2C Novel compounds of Formula I wherein R 1 , R 2 , R 3 , R 4  and R 5  which may be the same or different, each represent a hydrogen atom, a hydroxyl group, a nitro group, an alkyl group having 1 to 3 carbon atoms, a halogen atom selected from chlorine, bromine and iodine or an alkoxy group having 1 to 3 carbon atoms; R<SP>1</SP> and R<SP>11,</SP> which may be the same or different, each represent a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or an allyl group or are bound together with the nitrogen atom to form a substituted or unsubstituted five- or sixmembered heterocyclic group; provided that when at least two of R 1 , R 2 , R 3 , R 4  and R 5  are methoxy groups R<SP>1</SP> and R<SP>11</SP> are each an alkyl group having 2 to 4 carbon atoms, an allyl group and are bound together with the nitrogen atom to form a substituted or unsubstituted five- or six-membered heterocyclic group, and when all of R 1 , R 2 , R 3 , R 4  and R 5  are hydrogen atoms the group is a substituted or unsubstituted five- or sixmembered heterocyclic group; n is 2 or 3 and the group is in the ortho, meta or para position; and pharmaceutically acceptable acid addition salt thereof are prepared by one of the following methods: (a) a compound of Formula II wherein X is hydroxy, halogen or tosyloxy is reacted with a compound HNR<SP>1</SP>R<SP>11</SP>, (b) a compound of Formula VIII is reacted with a compound of Formula IX wherein X<SP>1</SP> is halogen or tosyloxy, (c) a compound of Formula X is reacted with a compound of Formula IX above, and (d) a compound of Formula XI is reacted with a compound of Formula VII optionally followed in all cases by salt formation. Excluded compounds of Formula I above are also prepared by novel methods (a) and (b) above. Intermediates of Formula II above are prepared by reaction of a compound of Formula VI with a compound of Formula VII above or by reaction of a compound of formula with a compound X<SP>1</SP>(CH 2 ) n X. Intermediates of Formula VIII above are prepared by reaction of salicylaldehyde and the appropriate substituted benzoylacetic acid allyl ester. 2-(3-Chloropropoxy)benzaldehyde is prepared by reaction of salicylaldehyde and 3-chloropropyl bromide. Pharmaceutical compositions in conventional forms for oral administration having vasodilative and antihypertensive activities comprise an above novel compound and a carrier or diluent.
Patent GB-1295550-A (GB)
IPC: D06F17/04
Filed: 1970-12-23
Abstract: 1295550 Washing machines BEGES AG 23 Dec 1970 [24 Dec 1969] 61120/70 Heading D1A In a washing machine comprising a washing and drying chamber 1 with rods 2 for supporting hanging articles which are washed from movable upper and lower spray nozzles a circulating pump 6 intermittently supplies water simultaneously to the upper sprays taken together at a rate between 0.7 and 1.3 litre/sec and a pressure of 1.5 to 1.9 atmospheres and to the lower sprays taken together at a rate between 1.3 and 2.1 litres/sec at a pressure of 2.0 to 2.5 atmospheres. The upper spray nozzles are provided in an oscillatable pipe 3 and the lower sprays in a pipe 4 which rotates due to hydraulic reaction. The pump operates only when a switch 20, controlled by a programmer 16, and a water pressure sensitive switch 18 are both closed. The switch 18 prevents the pump operating when the bottom of the housing 1 contains too much foam.
Patent GB-1295597-A (GB)
IPC: C08F14/06
Filed: 1971-04-19
Abstract: 1295597 Polymerizing vinyl chloride KNAPSACK AG 19 April 1971 [24 March 1970] 24683/71 Heading C3P Vinyl chloride is polymerized in aqueous suspension at 55-65‹C. and the particle size distribution is controlled by changing the speed of stirring at least once, increasing the speed to increase the proportion of coarse particles and decreasing to increase the proportion of fine particles.
Patent GB-1295658-A (GB)
IPC: C11D3/06
Filed: 1969-12-19
Abstract: 1295658 Hydration of sodium tripolyphosphate UNILEVER Ltd 19 Dec 1969 [24 Dec 1968] 61954/69 Heading C1A [Also in Divisions B8 and C5] Sodium tripolyphosphate (STPP) is hydrated at least partially by contacting the STPP with superheated steam at at least one point during its conveyance through a pipe by means of a carrier gas (i.e. pneumatic conveyance) and removing the hydrated STPP from the pipe. The weight ratio of STPP to carrier gas is advantageously in the range 10 : 1 to 2 : 1 and the weight ratio of steam to carrier gas 1 : 25 to 3 : 10 producing STPP of up to 15% moisture content, corresponding to 65% hexahydrate content. The steam nozzles may supply steam at a rate such that the ratio steam: STPP at each contact point does not exceed 5 : 100 and the ratio steam : STPP along the line is 0À5 : 100 to 5 : 100. The steam may be superheated to 200C. for a saturation temperature of 105-150C. The flow rate of STPP at the steam contact points is advantageously in the range of 20 to 30 metres/sec. The process is suitable for STPP having a high or a low phase I content. An apparatus comprising a pipe 1 for conveying the STPP and having spaced at intervals inlets 10a, 10b, 10c, 10d, containing steam injection nozzles 12 is provided (see Division B8). The STPP may be used for detergent compositions (see Division C5).
Patent GB-1296395-A (GB)
IPC: G07D1/04
Filed: 1969-02-11
Abstract: 1296395 Change-giving machine BELL PUNCH CO Ltd 4 May 1970 [11 Feb 1969] 7295/69 Headings G4V and G4X A change-giving machine, which may be associated with a vending machine, comprises respective means for receiving and paying out combinations of coins of different individual values and a two-way uniselector arranged to be counted up when coins are received and counted down when coins are paid out. In the embodiment described, the machine is associated with a suitable coin validating mechanism which sorts the coins into denominations and directs them to corresponding slits, each of which has a coin detecting microswitch 1. The 1p and 10p microswitches are connected to pulse generator 2 which generates a single pulse for each coin, the 2p microswitch to a pulse generator 3 producing two pulses, and the 5p and 50p microswitches to a pulse generator 4 producing five pulses. The 10p and 50p microswitches are also connected to relays 5 and 6 respectively, these controlling respective pairs of switch contacts 5<SP>1</SP>, 5<SP>2</SP> and 6<SP>1</SP>, 6<SP>2</SP>. The switches 7<SP>1</SP>, 7<SP>2</SP>, 7<SP>3</SP>, 7<SP>4</SP>, 7<SP>5</SP> are associated with withdrawal mechanisms for 1p, 2p, 5p, 10p and 50p coins respectively, the switches 7<SP>1</SP>, 7<SP>4</SP> being connected to generator 2, switch 7<SP>2</SP> to generator 3, and switches 7<SP>3</SP>, 7<SP>5</SP> to generator 4, all of the switches being connected through rectifiers to a relay 8 which controls switches 8<SP>1</SP>, 8<SP>2</SP> and 8<SP>3</SP>. Switches 7<SP>4</SP> and 7<SP>5</SP> are also connected to relays 5 and 6 respectively. The pulses from generators 2, 3, 4 are passed to the series of two-way uniselector mechanisms 10, 11, 12, and whether a pulse is added or subtracted is determined by the switches 8<SP>1</SP>, 8<SP>2</SP>, 8<SP>3</SP>. The relays 5 and 6, operated by the reception or withdrawal of 10p and 50p coins, serve, through switches 5<SP>1</SP>, 5<SP>2</SP> and 6<SP>1</SP>, 6<SP>2</SP> to pass a single pulse from generator 2 or 5 pulses from generator 4 to the tens uniselector 11. When a 1p or 5p coin is received or withdrawn, the pulse or pulses are passed to the units uniselector 10. A plurality of inhibitor switches, shown diagrammatically at 13, prevents the withdrawal of a coin of greater value than the credit remaining. A display device such as a rotary indicator may be associated with the uniselector mechanism and the machine may be associated with an article vending machine.
Patent GB-1296661-A (GB)
IPC: C11D1/12
Filed: 1970-02-09
Abstract: 1296661 Tenside mixtures of anionic aminotriazine-based condensates and surfactants SUDDEUTSCHE KALKSTICKSTOFF-WERKE AG 9 Feb 1970 [13 Feb 1969] 6027/70 Heading C3R A tenside mixture comprises (a) a polymeric anionic condensation product derived solely from one or more s-triazines having at least 2 NH 2  groups, and one or more oxo compounds, and having no surface-active properties, and (b) an anionic organic compound free of aminotriazine groups and having a surface-active effect. Preferably, the weight ratio of (a) : (b) is 25-98 : 75-2. Preferred aminotriazines are melamine, ammeline and guanamines; suitable aldehydes and ketones include formaldehyde, acetaldehyde, acetone, methyl ethyl ketone and diethyl ketone; the polymer may be modified with a sulphite or sulphonate. Suitable surfactants (b) include alkali metal or ammonium salts of fatty alcohol sulphates or alkane- or alkyl-aromatic sulphonic acids, or fluorinated carboxylic acids. In Examples, the resins used are derived from melamine, caprinoguanamine and formaldehyde, modified with an alkali metal pyrosulphite (1 : 0À018 : 3 : 0À5 molar ratio), from ammeline and formaldehyde (1 : 2 molar ratio), or from melamine and formaldehyde modified with a pyrosulphite (1 : 3 : 0À5 molar ratio); these resins are mixed with the sodium salt of a sulphonated trihexyl tricarballylate, a salt C 18 H 35 CO 2 CH 2 CH 2 SO 3 Na, sodium dodecylbenzene sulphonate, or a salt of a fluorinated
Patent GB-1297508-A (GB)
IPC: G01L1/22
Filed: 1970-03-02
Abstract: 1297508 Measuring force electrically BLH ELECTRONICS Inc 2 March 1970 [13 March 1969] 9915/70 Heading G1N In an arrangement for measuring forces (e.g. weight) similar to that disclosed in Specification 1196305 and comprising one or more divided beams 20 fixed at one end to a support and bearing at the other end a load carrying platform (not shown), with four resistance strain gauges 13a, b, c, d, disposed at strain sensitive positions on the beam, the four strain gauges are connected in a bridge circuit for measurement purposes, and resistances are connected across one pair of gauges to reduce the errors due to position of the applied force 14 (i.e. its distance from the end 10). With the device operating under shear strain mode, Fig.3 (not shown) as required, the variations in the gauge resistances lead to an unbalance of the bridge which is indicative of the load, whereas under bending strain mode, Fig. 5 (not shown) ideally variations in the resistances should cancel out. Since ideal conditions e.g. equal gauges and exact positioning thereof seldom pertain, bending strain mode tends to result in an unwanted output. The shunt resistances minimize these errors.
Patent GB-1301398-A (GB)
IPC: G01F23/292
Filed: 1970-10-28
Abstract: 1301398 Liquid level indication EAST BRISTOL ENGS Ltd 26 Oct 1971 [28 Oct 1970 23 July 1971] 51183/70 and 34693/71 Heading G1H In a sight gauge apparatus for monitoring a liquid level in a container a hollow cylindrical transparent sight tube 1 is fitted in a liquid container and at least one optical fibre cable 5 has one flat end 5a located close to and facing the exterior wall of the sight tube 1 interior when viewed in cross-section, the chord being a length less than the sight glass internal diameter, and means for illuminating the sight glass 1 such that the light intensity on the flat end 5a of cable 5 is dependant on presence of liquid in the tube 1. The light source may be ambient or artificial.
Patent GB-1310876-A (GB)
Title: Vibratory feeders
IPC: B65G65/44
Filed: 1969-04-01
Abstract: 1310876 Shoots JAMES BRUCE & SON Ltd 31 March 1970 [1 April 1969] 16927/69 Heading B8S A vibratory feeder has a shoot which includes an adjustable gate 12 to vary the amount of material passing to a vibratory pan 16c. The pan is mounted on springs 19 and is provided with a conventional vibrator (not shown). In use, the feeder is mounted under the outlet of a hopper and a conveyer belt or an auger is located below the outlet of the pan. The base of the pan may be horizontal. The adjustable gate 12 may be replaced by a fixed plate.
Patent GB-1318055-A (GB)
Title: Power feeding arrangements
IPC: H04B3/44
Filed: 1970-08-05
Abstract: 1318055 Repeater power supply equipment STANDARD TELEPHONES & CABLES Ltd 5 Aug 1970 37733/70 Heading H4R In a transmission system a phantom circuit formed by two pairs of conductors is used to feed power at normal mains frequency to repeaters distributed along the transmission path and a D.C. power supply equipment is connected across the phantom circuit to supply one or more repeaters. The input impedance of the power supply equipment is designed to produce a reactive voltage drop that is at least ten times the voltage drop along the line. Thus the value of the supply voltage is made virtually independent of the length of the line and the number of repeaters supplied. Mains power is introduced by transformer (6) into the conductor pairs (3), Fig. 1 (not shown). At the repeater station for a carrier transmission system the power supply equipment 15 has its input connected between shunting capacitors 24 forming part of a physical filter inserted in one side circuit of the system to by-pass the carrier repeater 12. A split inductor 28 is used to partially compensate the reactance of the capacitors and thus reduce the reactive voltage required to a safe level whilst being high enough to make the system supply voltage practically load independent. The power supply equipment 15 includes a bridge reactifier feeding a series resistor and shunt Zener diode forming a voltage control circuit. The supply can be taken through a transformer to give added lightning protection and this transformer preferably is adjustable. In an alternative embodiment a centre tapped choke could be used to provide the connections between the power supply equipment and the phantum circuit, Fig. 1 (not shown). It is also stated that the supply voltage transformer (6) could be eliminated if the supply were taken to tapped impedances connected across each pair.
Patent GB-1319370-A (GB)
Title: Device for separating solid material from a gas containing it
IPC: B04B5/12
Filed: 1971-09-03
Abstract: 1319370 Centrifugal separator WIBE LUFTUND WARMETECHNIK GmbH 3 Sept 1971 41282/71 Headings BIT and B2P A separator for removing solids from a gas comprises a chamber 4 in which' are located two adjacent ducts 1, 8 extending through a wall of the chamber, a suction device 3 arranged to draw gas containing solid material into the chamber 4 through one of said ducts (duct 1) during operation while allowing gas to leave the chamber through the other duct (duct 8) and a guide member 6 for the solid material located at the periphery of the chamber and around the ducts 1, 8 and leading to an outlet 7 in the chamber for the solid material. The suction device 3 is a radial fanwheel driven by a motor 2 located outside the chamber. The separator may be used for removing shavings, sawdust and other small pieces of wood from air in workshops. In operation, solids are deposited on the guide member 6 by centrifugal force and led by the member to outlet 7 which may be connected with a shavings bin. Separated air containing fine dust is led via the duct 8 to an outlet 9 and conveyed back to the workshop after passing through a filter.  (For Figure see next column)
Patent GB-1325626-A (GB)
Title: Vacuum water closets
IPC: E03F1/00
Filed: 1971-06-18
Abstract: 1325626 Flushing water closets C A ING- ENJORSBYRA AB and LARS-ERIK BENGTSSON AB INGENJORSBYRA 18 June 1971 28743/71 Heading E1C A water closet, having a vacuum discharge arrangement comprising a suction pipe 4 and a valve 5 the operation of which is controlled by the water-pressure in a pipe 6 leading via a supply valve 3 from a water inlet pipe 2 to a flushing ring 10, includes means for retaining a predetermined quantity of water in the bowl 1 comprising a chamber adapted to be filled with the predetermined quantity of water during flushing and to empty into the toilet bowl after the water supply to pipe 6 has been cut off, the valve 3 being manually opened and being closed by a timing mechanism. The chamber in the embodiment of Fig. 1 is provided by a closed container 7 through which water flows from the pipe 6 to the flushing ring 10, the top of the container 7 being ventilated by a pipe 19 permitting the container to empty after valves 3 and 5 have closed. Control of valve 5 is effected by a piston 13 acting against the action of a spring 14 within a cylinder 12 connected to the pipe 6 via pipe 16. In a second embodiment (Fig. 2, not shown) the container 7 is omitted and the piston 13 is connected to the valve 5 via a lost-motion device such that the spring 14 can further depress the piston 13 after valve 5 has closed, so that water is displaced from a chamber provided by the lower part of the cylinder 12 through the pipes 16, 6 and flushing ring 10 to the bowl 1.
Patent GB-1326211-A (GB)
Title: Internal combustion engine
IPC: F16J13/00
Filed: 1970-02-25
Abstract: 1326211 Vibration-damped engine panels C A V Ltd 19 April 1971 [25 Feb 1970] 8985/70 Heading F1B Load-free metal panel for an I.C. engine consists of a peripheral portion 11 and a central portion 10, the portions being separated by gaps 13 and joined by strips of metal 12, the gaps 13 being filled with a flexible visco-elastic material secured to the edges of the gaps, to damp relative motion between the portions. The filling is e.g. rubber which is deformed in shear by the relative movement of the portions. The central portion is unsymmetrical in shape and is without ribs or thin sections (i.e. areas over twice and under half) the average thickness, unless ribs are provided which are intended to increase the motion at the edges of the central portion, compared with the remainder of this part.
Patent GB-1329095-A (GB)
Title: Method and apparatus for perforating tubes
IPC: B21D28/28
Filed: 1970-08-21
Abstract: 1329095 Punching L G HUDSON 17 Aug 1971 [21 Aug 1970] 40393/70 Heading B3W A slot is formed in a tube (not shown), which has been drawn on to a die 4, by means of a punch 1 in co-operation with a die opening 5. The tube material is severed by the leading end of the punch and a tongue of material is bent back at each end of the slot by the following punch portions. The die may be mounted on a bar connected to the punch carrying machine and may have a plurality of die openings for co-operation with a corresponding number of punches.
Patent GB-1329246-A (GB)
Title: Process for the production of alloyed iron powder mixture
IPC: C22C33/02
Filed: 1970-10-30
Abstract: 1329246 Iron alloy powder BANDSTAHLKOMBINAT VEB 30 Oct 1970 [10 Nov 1969] 55000/69 Heading C7D A compressible Fe alloy powder for the production of sintered alloys is made by mixing an air atomized Fe powder with a powder alloying component and heating the mixture to effect surface diffusion. In an example atomized Fe powder containing 3À64% O 2  and 6À367C is mixed with 4À74% Ni powder and annealed to form a powder for the production of sintered steel. Ni O may be substituted for the Ni powder.