baber/WOPTO huggingface dataset:
Patent GB-1225122-A (GB)
IPC: F04B39/04
Filed: 1967-10-04
Abstract: 1,225,122. Air pumps. MANCO Ltd. Oct.2, 1968 [Oct.4, 1967], No.45099/67. Heading F1N. [Also in Division F2] A pump comprises a piston 26, 27 slidable in a moulded cylinder 12 made from polypropylene reinforced with a filler having lubricating properties. The filler is preferably talc, the amount by weight of talc in the moulded material being between 10% and 50%. The piston is in the form of a plastics sealing washer 27 having a frusto-conical cylinder engaging portion 28 and an internally grooved portion 29, 30 into which is snapped a disc 26 on a piston rod 24. The rod 24 passes out of the cylinder through an end cap 16 of the same material as the cylinder. During the suction stroke the frustoconical portion 28 allows air to pass from an inlet in the cap 16 to the cylinder pumping chamber. The cylinder shown has lugs 18 for pivotal connection to the movable frame member (10) of a foot pump, Fig.1 (not shown).
Patent GB-1226767-A (GB)
IPC: B01J8/18
Filed: 1968-05-27
Abstract: 1,226,767. Exothermic reactions. FARBWERKE HOECHST A.G. 27 May, 1968 [27 May, 1967], No 25145/68. Heading B1X. [Also in Division C3] A process for carrying out an exothermic reaction between a gas and a solid reactive therewith in a fluidised bed comprises passing the gaseous reactant optionally in admixture with an inert gas through the solid in the form of a loose pulverulent reaction material at a rate which is not sufficient for fluidisation, and fluidising the solid reactant by intermittently blowing an inert gas into it. The process may be applied to the chlorination, sulphochlorination, nitration or oxidation of polyolefines or P.V.C. using nitrogen, carbon dioxide or anhydrous hydrogen chloride as the inert gas. The chlorination may be effected in the presence of catalysts, U.V. light or radioactive radiation.
Patent GB-1227089-A (GB)
IPC: G01N33/20
Filed: 1969-07-22
Abstract: 1,227,089. Oxygen densitometers. HITACHI Ltd. July 22, 1969 [July 24, 1968], No.36908/69 Heading G1N. [Also in Division B1]. The quantity of oxygen in a liquid metal, e.g. sodium, is determined by passing cooled liquid metal through two passageways 20, 21 of different cross-section, measuring the flow resistance differential between the two passageways caused by the oxide of the metal precipitating measuring the temperature of the cooled liquid metal, and calculating the quantity of the oxide in relation to the temperature of the liquid at the time of occurrence of the flow differential. As shown, two tubes 13, 14 are mounted one inside the other, the flow rate of the metal in each tube is measured inductively, and the temperature of the metal is measured by a thermocouple 30, which may be mounted on one of the electrodes 17, 17<SP>1</SP>, Fig. 6 (not shown). In one embodiment, Fig.4 (not shown), the voltages representative of the flow rates, from electrodes 16, 16<SP>1</SP>, 17, 17<SP>1</SP>, respectively, are passed to a balancing circuit which produces an output when a flow rate differential is sensed, and this output, together with the temperature voltage, is applied to a calculating circuit which contains a known relationship between the temperature of the metal and the oxygen concentration. In an alternative, Fig. 7 (not shown), the output of the balancing circuit operates a relay which operates a switch to close a path between the thermocouple and a meter calibrated in oxygen concentration, and a switch which closes a path between a power source and a heater surrounding the cooling fins 29 so that the metal is heated when a flow resistance differential is sensed and the oxygen concentration is measured.
Patent GB-1227552-A (GB)
IPC: F23N5/12
Filed: 1968-06-11
Abstract: 1,227,552. Controlling burners. FENWAL Inc. 11 June, 1968 [26 June, 1967], No. 27719/68. Heading F4T. Burner ignition and monitoring apparatus comprises a burner B, a pair of ignition electrodes 13, 15 connected to the secondary winding 7 of a transformer T, and a sensing circuit 21 connected between the burner B and a centre tap on the secondary winding 7 so as to produce a full-wave signal by flame rectification. The sensing circuit includes an amplifier A which energizes a relay R only in response to full-wave current. The contact 18 of the relay is connected in the circuit of a utilization device 119, e.g. for controlling fuel flow. In a second embodiment (Fig. 2) a pilot burner B is supplied with gas via a solenoid valve V 1  and is sensed to control a solenoid valve V 2  in the supply to a main burner 23. The sensing circuit includes a capacitor C 2  which when sufficiently charged (i.e. by full-wave current) triggers a gas relay GR to energize a relay R which then connects a resistor R 2  in parallel with the primary of the transformer T to reduce the voltage thereacross and to open the valve V 2 . Flame failure causes the relay to be de-energized. A circuit breaker CB opens an input switch S in the event of failure of the burner to ignite within a predetermined time.
Patent GB-1229712-A (GB)
IPC: B65D35/22
Filed: 1969-03-03
Abstract: 1,229,712. Aquaria. STERNCO INDUSTRIES Inc. 3 March, 1969 [28 Oct., 1968], No. 11112/69. Heading A1A. [Also in Divisions B1/2, H1 and H3/5] A filter-heater system comprises a casing 14 which hooks on to the outside of an aquarium tank 11 and contains a removable filter 15 comprising a box with a perforate floor containing layers of charcoal 49 and glass wool 50, and an electric heater 51 controlled by an adjustable thermostat switch 57-62 and a floatoperated magnetic reed switch 63-72 in series. Water is urged up pipe 36 by an air-lift pump 37, 38 in the aquarium and flows from opening 36b across rim 46 of the filter (Fig. 1) and downwards therethrough to the heater, then up between the sides of the casing 14 and the filter box and back into the aquarium by channels 27, 28. The casing has a lid 83, and filter box front and rear walls 40, 41 abut the walls of the casing to support the filter therein. The thermostat switch includes a bi-metallic strip 61 and a contact arm 57, adjustable by turning external knob 76 (Fig. 5). Magnetic float 69, 70 is shown in its raised position, closing contacts 65, 66, but falls to open the circuit if the water level around the heater drops. A capacitor 82 is connected across the thermostat switch. The switches are enclosed by a casing 56 to exclude the water. The heater is similarly enclosed by casing 53 protecting heater cartridge 52. The inlet end or pipe 36 carries on intake grill 39.
Patent GB-1231321-A (GB)
IPC: C09B33/06
Filed: 1968-03-15
Abstract: 1,231,321. Diamines. CIBA-GEIGY A.G. 15 March, 1968 [15 March, 1967; 4 Aug., 1967], No. 6167/69. Divided out of 1,170,011. Heading C2C. The invention comprises diamines of formulµ wherein R 1  and R 2  in the first formula are alkyl groups that may be substituted and in the second formula are acyloxyalkyl or cyanoalkyl group, R 3  and R 4  are H or alkyl that may be substituted, R<SP>1</SP> 4  is alkylene, Z is a bridging component containing at least one residue of a dicarboxylic acid or a mono- or di-carbamic acid or of carbonic acid, H-A 1  and H-A 2  are p-phenylene residues that may be substituted and having a H atom in para-position to the -NR 1 R 3 , -NR 2 R 4  or NR 2 R<SP>1</SP> 4  groups and the group A 2 R 2  may be joined to A 2  to form a ring, r and q are 1 and x is 1 or 2. In examples: (1) m-nitroaniline and adipic acid dichloride are condensed to give bis-N,N<SP>1</SP>-(m-nitrophenyl)- adipamide, which is catalytically hydrogenated to give bis-N,N<SP>1</SP>- (m-aminophenyl)-adipamide, which is finally reacted with acrylonitrile to give bis - N,N1 - [m - (2 - cyanoethyl) - aminophenyl] - adipamide, a number of similar products are also specified; (2) N,N-bis-2<SP>1</SP>- hydroxethyl-3-nitroaniline is reacted with acetic anhydride to yield N,N-bis-2<SP>1</SP>-acetoxyethyl-3- nitroaniline which is catalytically hydrogenated to give N,N-bis-2<SP>1</SP>-acetoxyethyl-3-amino-aniline which is finally condensed with thiophene-2,5- dicarboxylic acid chloride to yield thiophene- 2,5 - dicarboxylic acid - N - (3<SP>1</SP> - bis - acetoxyethylamino - phenyl) - amide and a number of similar products are also specified; (3) 3-aminoacetanilide is reacted with acrylonitrile to yield 3 - (N,N - bis - 2<SP>1</SP>- cyanoethylamino) - acetanilide which is hydrolysed with EtoH/HCl to give 3 - (N,N - bis - 21 - cyanoethylamino)- aniline which may be further condensed with dicarboxylic acid chlorides or diisocyanates; (4) N - 2 - hydroxyethyl - N - ethyl - aniline is condensed with 3-nitrophenylisocyanate to give 1 - (3 - nitrophenylcarbamoyloxy) - 2 - (N- phenyl - N - ethyl - amino) - ethane which is reduced as above to 1-(3-aminophenylcarbamoyloxy) - 2 - (N - phenyl - N - ethyl - amino) - ethane which is finally reacted with acrylonitrile to give 1-[3-(2<SP>1</SP>-cyanoethyl)-aminophenylcarbamoyloxy] - 2 - (N - phenyl - N - ethyl - amino) - ethane; (5) N-2-cyanoethyl-N-2<SP>1</SP>-hydroxyethylaniline is treated with phosgene to yield the chloroformic acid ester which is condensed with N,N - bis - 2 - acetoxyethyl - aniline to yield 1 - [3 - (N,N - bis - 2 - acetoxyethylamino) - phenylcarbamoyloxy] - 2 - [N - (2<SP>1</SP>- cyanoethyl) - N - phenyl - amino] - ethane and a similar end-product is also specified.
Patent GB-1233170-A (GB)
IPC: F16L3/13
Filed: 1969-11-19
Abstract: 1,233,170. Spring clips. GUSTAVSBERGS FABRIKER A.B. 19 Nov., 1969 [22 Nov., 1968], No. 56560/69. Heading E2B. [Also in Division A4] A clip bracket 2 for supporting pipes 1 adjacent a skirting board comprises a one piece block of resilient plastics, e.g. polypropylene, and is symmetrical about a horizontal centre plane, the block including a rectangular central portion 5 with a bore (6) to receive a fixing screw 7, a pair of internally threaded, tubular sleeves extending in opposite directions from the central portion 5, and a pair of resiliently deformable pipe clamps 10 respectively disposed one above and one below the central portion 5, the bracket 2 being adapted to support a cover strip 3. As shown, spaced brackets 2 are first screwed to the skirting board, the pipes 1 are pushed into the clamps 10, and the cover strip 3 is fitted over the brackets 2 with a flange 15 engaged in a recess 16 behind the brackets and with a bent lower edge 17 resting on the floor. A joint plate 4 may be fitted over adjacent ends of two strips 3 by fitting a bracket 2 over already installed pipes (Fig. 3) with the clamps 10 opening towards the skirting board and then securing the plate 4 by a screw 9 threaded into the outwardly opening sleeve 8.
Patent GB-1234367-A (GB)
IPC: B29C33/00
Filed: 1969-09-25
Abstract: 1,234,367. Dies. FORD MOTOR CO. Ltd. 25 Sept., 1969 [26 Sept., 1968], No. 47166/69. Addition to 1,234,005. Heading B5A. [Also in Division B3] A die set for moulding plastics similar to that disclosed in the parent Specification has one or more of its hexagonal rods 32 shortened to form an internal cavity 38 to accommodate a temperature controlling liquid for heating or cooling the die. The liquid is circulated through a tube 44 positioned within the cavity 38, along grooves formed by chamfering the ends of adjacent hexagonal rods 34, 36 and through a return conduit 48. The die may be provided with vent passages. The formed workpiece is removed by movable ejector rollers 30. Some of the rods may be of different hardness and composition than the others.
Patent GB-1234570-A (GB)
IPC: G21C1/03
Filed: 1967-09-26
Abstract: 1,234,570. Controlling reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 13 Sept., 1968 [26 Sept., 1967], No. 43827/67. Heading G6C. In a nuclear reactor having a shield 4 mounted for rotation relative to the reactor core 5, shutdown equipment comprises at least one rigid tube 13 penetrating the shield 4 and the core 5, a shut-down absorber element 17 freely movable in the or each tube 13, mechanism 15 disposed in or on the shield 4 for inserting the element 17 into and removing it from the core 5, means 16 (e.g. a chain or cable) connecting the mechanism 15 to the element 17, the or each tube 13 being withdrawable (e.g. by rack-and-pinion means) from the core 5 for enabling the shield 4 to be rotated, and means (e.g. interlocks) for preventing withdrawal of the or each tube 13 from the core 5 unless and until the reactor is maintained in a shut-down condition by other control means (not shown). In the sodium-cooled fast reactor shown, the main sodium-containing vessel 1 is disposed in a vault 2 having a roof 3 penetrated by the rotatable shield 4. The reactor core 5, axial breeder regions 6 and radial breeder regions 7 are contained in a core vessel 8 carried by a diagrid 9 supported on brackets 10, shielding 11 being provided within the vessel 8. The shield 4 is mounted with its axis concentric with that of the core 5 and is employed with an eccentrically-mounted refuelling machine (not shown), enabling all core and breeder region fuel element positions to be serviced. In addition to the shut-down equipment described above, the shield 4 also carries normal control rod operating mechanisms (not shown) for operating control and shut-down rods. When fully inserted in the core 5, these rods may be released from their control mechanisms to enable the shield 4 to be rotated. Each mechanism 15 normally holds the respective control element 17 raised so that its absorber region 18 is out of register with the core 5 (as shown on the r.h.s. of the Figure) and on shut-down being required, the element 17 is lowered, where controlled shut-down is required, or allowed to fall under gravity, where an emergency shut-down is required, into the fully inserted position in which the absorber 18 registers with the core 5 (as shown on the 1.h.s. of the Figure). The tubes 13 are of substantial thickness so as to withstand significant core distortion, enabling shut-down to be effected even if the normal control and shut-down rods cannot be inserted into the core. Furthermore, the control elements 17 are made somewhat flexible, e.g. by being of linked construction, so that they can pass freely within the tubes 13 even if the latter have undergone a measure of distortion.
Patent GB-1238030-A (GB)
IPC: B60N2/54
Filed: 1968-02-07
Abstract: 1,238,030. Resiliently mounted seats. HERBERT TERRY & SONS Ltd. 2 May, 1969 [7 Feb., 1968; 24 Aug., 1968], Nos. 6019/68 and 40567/68. Heading A4U. A seat 10, e.g. for a tractor, is secured to a rectangular plate 20 having opposite lateral edges resiliently supported in a suspension set consisting of conical springs 22, 23 having their smaller ends secured to dowels engaged in the plate 20 and their larger ends engaged in telescopically arranged channels 11, 12. The channels are retained at maximum distance apart by bolts 18 and the channel 11 is secured to the vehicle.
Patent GB-1239251-A (GB)
IPC: C08F283/01
Filed: 1968-07-24
Abstract: 1,239,251. Unsaturated polyester resins. UNION CARBIDE CORP. 24 July, 1968 [24 July, 1967], No. 35428/68. Heading C3P. A composition comprises an unsaturated polyester resin and one or both acrylic monomers of the formula where the radical R may be hydrogen or methyl. In the examples, the compositions comprise polyesters prepared from maleic acid or anhydride, phthalic acid or anhydride, propylene glycol, dipropylene glycol; hydroquinone; bicyclo - (2.2.1) - hept - 2 - yl acrylate and methacrylate, styrene, methyl methacrylate, vinyl toluene; benzoyl peroxide and dimethylaniline and the compositions are cured in moulds.
Patent GB-1239533-A (GB)
IPC: E21C35/12
Filed: 1970-02-05
Abstract: 1,239,533. Mineral-mining installations. K. GREBE. 5 Feb., 1970. [5 Feb., 1969], No. 5640/70. Addition to 1,116,503. Heading E1F. The longwall, looped cutter chain, mineralmining installation of Specification 1,116,503 is modified in that angular adjustment of the floor-positioned guide 9 for the lower run of the cutter chain of the installation about the longitudinal axis of the guide and of maintenance of pressure to bias the guide down against a mine floor is now obtained by mounting the guide on the face ends of plates 135 having at their waste ends upturned portions 136 that are disposed in front of associated props 39a of roof support frames to which they are connected at points 152 to the rear of the props by resiliently yielding means 15, e.g. fluid-actuated piston cylinder units having appropriately set pressure relief. Preferally the plates 135 are connected to plates 139 secured to the front ends of the floor beams 39 of the roof support frames by vertically adjustable pivots 141. The vertical width of each plate 135 increases uniformly from its face end to the point 149 and then continues to increase uniformly but at a lesser rate to its waste side.
Patent GB-1251351-A (GB)
IPC: B23B31/20
Filed: 1968-06-12
Abstract: 1,251,351. Chucks. MOLINS MACHINE CO. Ltd. 10 June, 1969 [12 June, 1968], No. 28039/65. Heading B3B. A chuck for rotation in both direction, e.g. for tapping, comprises a hollow body 1 having an external screw thread, a collet 6 and a compression nut 8, and further includes a locking ring 10 slidable over the body 1 between a locking position at which the ring 10 engages both the nut and the body to prevent at least unscrewing of the nut, and a retracted position at which the ring permits unscrewing of the nut. The said ring 10 is keyed to the body 1 by a key 15 engaging in one of a plurality of keyways 13 and has a set of grooves 12 for engaging a pair of projections 14 on the nut 8. The nut 8 is thereby rotationally locked to the body 1. The number of keyways 13 and grooves 12 may differ by one to allow a vernier adjustment to a locking position of the nut 8 on the body 1. In an alternative embodiment the locking ring  has only two keyways for engaging two dia-  metrically opposed keys, the end of the locking ring adjacent the nut having inclined ratchet  teeth for engagement by a pair of pawls.
Patent GB-1251557-A (GB)
IPC: H01S3/125
Filed: 1969-02-21
Abstract: 1,251,557. Lasers. COMMISSARIAT A L'ENERGIE ATOMIQUE. 21 Feb., 1969 [12 March 1968], No. 9448/68. Heading H1C. An output pulse from a laser generator is amplified in a further laser by using a beam splitter to separate the pulse into two pulses a and b, the pulse a being subjected to an optical path delay while the pulse b is amplified in the further laser, and the amplified pulse b being then subjected to the same optical path delay while the pulse a is amplified, the two pulses being finally recombined. In this manner the intensity of the generator output pulse is reduced so as to avoid thermal damage to the amplifier laser rod. As shown in Fig. 1, the laser generator comprises a laser rod 1, partially transmitting mirror 3 and a rotating Q-switching prism 2, the output pulse being vertically polarized at 4 before pulse division takes place at a beam splitter 5. The transmitted pulse b is passed through Glan prisms 6 and 12 and laser amplifying rods 10, 11, without effect on the vertical polarization, the second Glan prism 12 being crossed with respect to prism 6 that the pulse b is diverted into an optical delay path formed by mirrors 13 and 14. The pulse a is deflected by the beam splitter 5 into an optical delay path comprising mirrors 7, 8 before passing through the laser rods 10, 11 and Glan prism 12, its vertical polarization being converted to horizontal polarization by a Fresnel prism or ¢ wave plate 9 so that reflection takes place at prism 66. The two pulses a and b, which are respectively transmitted and reflected by prism 12, are focused on to a common spatial point F by lenses 15, 16. In a modification, Fig. 2, the two pulses a and b are passed through the laser amplifier rods in opposite directions, the initially delayed pulse a being reversed in direction by the optical path delay formed by mirrors 18, 19, 20 and the polarization-changing Fresnel prism 9.
Patent GB-1257613-A (GB)
IPC: H02J3/36
Filed: 1970-01-17
Abstract: 1,257,613. HVDC transmission systems. NAUCHNO - ISSLEDOVATELSKY INSTITUT POSTOYANNOGO TOKA. 17 Jan., 1970, No. 2392/70. Heading H2F. In a transmission system in which each station has a series arrangement of converting bridges 18 . . . 21, having by-pass switches 14. . . 17 and having means for automatically matching the number of bridges in circuit with that at a further station, a selector switch 30 is provided for determining which of bridges 18 . . . 21 shall be by-passed first and having different time delay periods between the switching of different bridges. As described, the voltage on the D.C. transmission line is reduced by a potential divider 3 and fed via a bridge rectifier 4 to winding 2 of a differential relay 1 where it is compared with the voltage from a reference source 9 which, after reduction by potential divider 10, energizes a bucking winding 5. If one or more bridges are by-passed due to a fault at a remote station, differential relay 1 becomes energized, energizing a time delay relay 24 which, after a time delay t1, closes contacts 26 so as to energize a by-pass actuating relay 34 . . . 37 to effect operation of one of the by-pass switches 14 . . . 17. The bridge which is first to be switched out is previously determined by manual operation of one of contacts I . . . IV of the bridge selector 30. Once the by-passing has been completed, one of contacts 46 . . 49 will be closed, energizing one of relays 42 . . . 45 which releases the by-pass actuating relay 34 . . . 37, closes one of contacts 50 . . . 53 and opens one of contacts 11 . . . 13. If the differential relay 1 is still energized because of a mismatch in the number of bridges in the circuit, contacts 28 will close after a further time delay t2 so that the by-passing will continue by energization of a further by-pass actuator 34 . . . 37; this action may continue for a third time t3. The system is put into operation by contacts 6 energized by relay 7 connected to a D.C. current transformer 8.
Patent GB-1266638-A (GB)
IPC: F16H61/00
Filed: 1970-10-14
Abstract: 1,266,638. Change-speed control. FORD MOTOR CO. Ltd. 14 Oct., 1970 [24 Nov., 1969], No. 48711/69. Heading F2D. In a two-stage centrifugal governor valve with primary and secondary valve-masses 46, 60 and a cross-over passage 58 (as in Specification 3,048,184) regulating output speed-responsive pressure 18 from supply 16, to oppose pressure responsive to engine intake depression or throttle setting acting on shift-valves of an automatic transmission on a motor vehicle, the cyclic gravitational effect on cross-over pressure 58 of the primary valve 46 at low speeds, resulting in unstable hunting, is is minimized by causing the primary valve 46 to produce a decay crossover pressure instead of a cyclic cut off as in the above-stated Specification. Normal shift-valve hysteresis is then adequate to prevent hunting. The differentially-landed secondary valve 60 is loaded outwards by spring and centrifugal force in opposition to delivery pressure 72, 18, regulated to exhaust 74 and fed from supply. 16, 70, and to cross-over pressure 58 regulated to exhaust 55 in the primary valve 46, which is loaded inwards by spring and outwards by centrifugal force and cross-over pressure 58 acting on a differential outer land to cause pressure decay with speed increase. At a predetermined low speed (300 R.P.M.) the cross-over passage 58 is completely exhausted in the primary valve 46, after which the secondary valve 60 regulates alone, with a less steep pressure-speed curve (Fig. 5, not shown).