baber/WOPTO huggingface dataset:
Patent GB-1272296-A (GB)
Title: Nuclear reactor
Inventor: LAWRENCE BARRY REGINALD
IPC: G21C15/02
Filed: 1969-05-29
Abstract: 1,272,296. Reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 29 April, 1970 [29 May, 1969], No. 27376/69. Heading G6C. In a reactor which is liquid cooled and has a positive void coefficient, e.g. a natural U fuelled, light water cooled, heavy water moderated reactor, the core is divided into groups of discrete elongate regions with the regions in each group spaced from each other both azimuthally and radially relative to an axis of the core and with each group of regions served by a separate coolant circuit. A reactor core shown in plan view in Fig. 1 has the fuel contained in tubes passing through a mass of heavy water moderator, pressurized light water flowing through the tubes in heat exchange with the fuel to generate steam. The core is divided into two groups of discrete elongate regions, one group being shown hatched and the other non-hatched. The regions are arcuate, being defined by dividing the core into six concentric zones A, B, C, D, E and F and six azimuthal sectors 1, 2, 3, 4, 5 and 6 about the longitudinal axis. Each group of regions is served by a separate coolant circuit including a circulator 7 and each circuit has flow control valves arranged in three groups of six valves, each valve controlling coolant flow to one region. Valves of the same number are ganged electrically so that coolant flow to any sector can be varied to effect spatial control. In a different control mode valves of the same character are ganged electrically so that coolant flow to the regions can be varied to effect radial flux shaping during approach to burn-up equilibrium. It is also possible to alter the position of any valve individually in order to correct the power distribution locally. In the event of loss of coolant from one circuit half of the core is voided but because the voidage is distributed throughout the core in several discrete regions the reactivity insertion is reduced typically by a factor of 1À5 from 2À9% to 1À9%. In an alternative embodiment (Fig. 3, not shown), each concentric zone and each azimuthal sector contains one region of each group, the regions of each group being disposed at progressively decreasing radii about the longitudinal axis.
Patent GB-1157195-A (GB)
Title: Improvements in or relating to Adjustable Tables
Inventor: GIBBS CLAUDE EUGENE
IPC: A47B9/14
Filed: 1967-06-14
Abstract: 1,157,195. Tables. C. E. GIBBS. 5 June, 1968 [14 June, 1967], No. 27449/67. Heading A4H. A table which can be adjusted in height comprises two vertical end panels 24 supporting a table top 12, and having two guide rails 26 which are slidable in two channels 17 in two vertical end panels 14 of a lower frame 10 resting on the floor. The table top is held in an upper position by a locking bar 13 loosely mounted in wedge shaped apertures 27 in the end panels 24 and urged by a spring 32 to enter recesses 19 in the side walls 18 of the channels 17. The spring is deflected from the locking bar by a cam lever 33 pivoted to one of the panels 24, and when the table top is lowered the tail of the cam lever strikes a beam 16 fixed to the lower frame 10 and the spring returns to engage the locking bar. When the table is lifted by raising the upper frame the latter entrains the lower frame by abutments.
Patent GB-280873-A (GB)
Title: Manufacture of photographic developers
IPC: G03C5/30
Filed: 1927-10-17
Abstract: 280,873. I. G. Farbenindustrie Akt.- Ges, Nov. 19, 1926, [Convention date]. Mono-and di-N-oxyethyl derivatives of 4-amino- 1-oxybenzene, which may be used as photographic developers are prepared by acting upon the parent body with glycol halogenhydrin. A diluent and/or an acid-binding agent may be present. In one example 1 mol. 4-amino-1-oxybenzene and 1 mol. ethylene chlorhydrin are heated in the presence of caustic potash and alcohol, and in a second, the same reaction but with two molecules of ethylene chlorhydrin is effected in the prepuce of sodium carbonate.
Patent GB-693587-A (GB)
Title: Improvements in joints for railway rails or rail bridges
IPC: E01B11/32
Filed: 1950-11-10
Abstract: 693,587. Rail joints. NICOLA, A. de, and FANCELLI. R. Nov. 10, 1950. [Nov. 11, 1949] No. 27547/50. Class 104 (ii). A rail joint has a block, the upper surface of which is in alignment with and forms a continuity of the rail running surface, there being engaging means between the rail ends and the block which transform the longitudinal rail movement into a transverse block movement. The block 11 is wedge shaped and has dovetailed tenons 8, 9 which fit into correspondingly dovetailed grooves in the reduced portions of the running head at rail ends 1, 2. The central portion 12 of the block 11 rests on a reducedheight surface 4 of the rail head at the extreme ends.
Patent GB-1145825-A (GB)
Title: Improvements in or relating to gas bearings for turbines and the like
Inventor: DEE WILLIAM COLIN
IPC: F16C32/06
Filed: 1965-06-29
Abstract: 1,145,825. Bearings. G. C. DAVIS. 29 June, 1966 [29 June, 1965], No. 27587/65. Heading F2A. [Also in Divisions A5 and F1] A turbine of a dental drill, for example, is supported at its front end in a cylindrical journal hydrostatic gas bearing and at its rear end in a conical or frusto-conical hydrostatic gas bearing. In an embodiment a turbine 2 Fig. 1, is supported by means of a cylindrical journal gas bearing 6 and a frusto-conical gas bearing 7. Intermediate members 10 and 10a and resilient members 9 are positioned between the turbine 2 and the bearings 6 and 7, respectively, so as to resiliently support the turbine. Pressurized-gas is supplied to the turbine blading 3 through jets 15. In another embodiment resilient members 9a, Fig. 3, are positioned between the inner face of the turbine housing and bearings 11, 11a. The bearings may be made of silicon nitride and the turbine may be driven by a single jet acting on pockets 3a formed on the periphery of the rotor. The single jet 12, Fig. 4, directs the gas inwards into the pockets 3a to increase the driving force at speed.
Patent GB-1217740-A (GB)
Title: Improvements in rotary offset printing presses
Inventor: ROOZEE JAMES BURTON
IPC: B41F7/02
Filed: 1968-06-11
Abstract: 1,217,740. Printing apparatus. VANDERCOOK & SONS Inc. 11 June, 1968 [11 July, 1967], No. 27691/68. Heading B6C. A multi-colour rotary offset printing press comprises a plate cylinder 56, divided into a plurality of segments each of which may bear a printing plate, a blanket cylinder 57 of the same diameter as the plate cylinder 56 and a papercarrying impression cylinder 58 which during a single revolution of cylinders 56 and 57 revolves as many times as there are segments on cylinder 56. Each segment on plate cylinder 56 has its own inking system and dampening system. Cam-operated trips are provided whereby the inking and dampening systems 69-72 and 76- 79 contact only their own segments of plate cylinder 56. Blanket cylinder 57 may be tripped and held out of engagement with plate cylinder 56 as a segment of cylinder 56 from which it is not desired to print passes through what would otherwise be the nip of cylinders 56 and 57, and impression cylinder 58 may correspondingly be tripped out of engagement with blanket cylinder 57. Both these actions are actuated by cams on blanket cylinder 57, and in normal operation the cylinders are tripped and returned as each segment of cylinder 56, or corresponding portion of cylinder 57, nears the relevant nip. When it is desired to hold the cylinders in their trip positions electromechanical latches are operated. Electromechanical latches are also employed to hold inking and dampening apparatus out of engagement with their respective segments of plate cylinder 56 if a segment is not to be printed from. Gears and chains synchronize the various cylinders and trips. Preferably plate cylinder 56 has four segments, each of which prints a different colour when all are in use. Each inking system 69-72 incorporates a fountain roller 91, wiped by a blade, a messenger roller 92 and axially reciprocated rollers 84 and 86, together with frame rollers 80-83 and other, fixedaxis, rollers. Means are provided for varying period during which messenger roller 92 contacts fountain roller 91, and for locking messenger roller 92 out of contact with fountain roller 91. The rollers 84, 86 are reciprocated by engagement of a follower with a grooved shaft. Similarly each dampening system 76-79 comprises a fountain roller 97, a messenger roller 98 an axially oscillated roller 98 and frame rollers 93, 94. The fountain rollers 97 are rotated by individual variable speed electric motors and the rollers 98 are oscillated by engagement of grooved collars on their shafts with fixed rollers.
Patent GB-955432-A (GB)
Title: Improvements relating to electrical connectors
Inventor: LOBELLE MARCEL JULES ODILON
IPC: H01R13/504
Filed: 1961-07-31
Abstract: 955,432. Two-part couplings. M. L. AVIATION CO. Ltd. July 18, 1962 [July 31, 1961], No. 27717/61. Heading In an electrical connector, the connections between the contacts of a plug or socket outlet -and a plurality of conductors are embedded in a mass of rigid insulating material which, together with the base of the outlet, is then embedded in a further mass of flexible insulating material. As shown, a plug 2, comprising sheath 3 in which is fixed hard rubber body 4 in which contacts 5 are embedded, has wires 1, surrounded by sheath 10, soldered to the ends of its contacts. A hard block 8 of epoxy resin is then moulded round the connections and a second block 9 of flexible insulating material is then cold-moulded round the base of the plug and the block 8, and over the end of sheath 10.
Patent GB-911115-A (GB)
Title: Improvements relating to tunnel diode oscillator circuits
Inventor: CONNETT JACK
IPC: H03K3/315
Filed: 1960-08-10
Abstract: 911,115. Tunnel diode relaxation oscillators. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 3, 1961 [Aug. 10, 1960], No. 27732/60. Class 40 (6). A relaxation oscillator comprises a capacitor C connected in series with a charging circuit including a series diode D and in shunt with a resistor R 1  in series with a tunnel diode TD. In the circuit shown, when the tunnel diode is in its low voltage state a transistor T is non- conductive and the capacitor charges through R2 and D. This continues until the capacitor voltage is such that the tunnel diode current exceeds its peak value whereupon the latter diode switches to its high voltage state causing the transistor to conduct and bottom. Diode D is now cut-off and the capacitor discharges until the tunnel diode current falls below the valley value whereupon the circuit returns to its initial condition and recharging of the capacitor recommences.
Patent GB-466841-A (GB)
Title: Dyeing apparatus
IPC: D06B3/08
Filed: 1936-10-13
Abstract: <PICT:0466841/IV/1> A plurality of skeins to be dyed are supported in a horizontal position on sticks 21, Figs. 2, 3 at opposite ends of a dyeing rack 10 which has its sides and bottom closely positioned adjacent the sides and bottom of a surrounding vat 1 whereby endwise reciprocating movement of the rack in the vat forces the dye liquor to flow through the material supported on the rack.  The rack 10 consists of a skeleton framework in slots 20, 20<a>, Fig. 3, in the ends of which may be positioned the sticks 21 which support the skeins.  The rack 10 is secured by screw studs 23 in holes 24 in the sides of a detachable top 11 of the rack which has a swivel connection at 28 to hoisting means 12 and which rests at the sides on rollers 3 at the sides of the vat 1 and along which it is reciprocated by a crank. <PICT:0466841/IV/2>
Patent GB-176414-A (GB)
Title: Direction indicators for attachment to motor vehicles
IPC: B60Q1/34
Filed: 1920-10-01
Abstract: 176,414. Mitchell, W. V., and Budd, E. J. Oct. 1, 1920. Road traffic signals on vehicles; visible non-luminous signals.-In a direction-indicator for motor vehicles of the type in which a drum A bearing the desired indications and illuminated if desired from within is rotated by cased wires through a rack E and pinion D, the rack is mounted in a guide lug F on one of the brackets B supporting the drum. This lug F serves as an abutment for the cuter casing H<1> of the operating-cable. A spring L is interposed between a lug I on the rack F and a lug K on the bracket B. The device may be operated by an arm M with a projection M<1> engaging in notches in a casing R supported on the steering-column.
Patent GB-505892-A (GB)
Title: Improved apparatus for preparing or treating shredded tobacco for use in cigarette making machines
IPC: A24B3/04
Filed: 1937-10-13
Abstract: 505,892. Pneumatic separating. AMERICAN MACHINE & FOUNDRY CO. Oct. 13, 1937, No. 27891. Convention date, May 20. [Class 117] [Also in Groups. VI and XIII]- An apparatus for drying shredded tobacco comprises a number of perforated tables arranged in cascade, mechanism for vibrating the tables in unison and in the same direction to cause the tobacco to be advanced from each screen to the next and to agitate the tobacco on each table to permit escape of dust and grit, and means for circulating a drying medium such as warm air through the perforations of the tables. The tobacco is fed on to the first of a series of-vibrating tables 115, Fig. 1, arranged in cascade and each provided with a perforated screen or sieve 116, Fig. 8. Each table 115 is secured to side plates 117 and channel members 118 supported by leaf springs 125, 126 and vibrated by means of a gyratory member attached to a cross-member 120 and driven from a motor 122 by means of a drive member 119 as described in U.S.A. Specification 1,517,587. Tobacco delivered from one table 115 to the next is tumbled to ensure uniform drying, by means of a shaker plate 137, Fig. 8, which has a toothed edge with alternate teeth 137a bent upwards to provide an interrupted lip along the edge. The plate 137 is connected by links 132 to cross-bars 130 under the table 115, and by links 135 to a bell-crank 133 pivoted on a shaft 134, so that an oscillating movement is imparted to the plate 137 by the vibration of the table 115. A yieldable element 142 having a lower toothed edge 143 coacts with the edge of the plate 137 to break up any tobacco lumps. The tobacco from the last table 115 is delivered by a valve 154 into a truck T. Heated air is supplied to the drying chamber by a steamheated radiator 150 and is drawn out at the top of the chamber into ducts 151 and a suction conduit 152. Baffle plates 153 on the tables 115 cause the heated air to pass through the screens 116, and the forward end of the lowest table 115 is cut off from the heated air by a baffle plate 155 to provide a cooling chamber to which cool air is admited by a shutter 156 on a shaft 157 adjusted by a hand-wheel 158. Humidity in the drying chamber may be controlled by a pivoted shutter 205, Fig. 11, actuated by a solenoid 201 controlled by a humidostat when the humidity falls below a predetermined degree.
Patent GB-1149744-A (GB)
Title: Siloxane-oxyalkylene co-polymers and polyurethane foam preparation
IPC: C08G77/00
Filed: 1966-06-22
Abstract: 1,149,744. Siloxane-oxyalkylene block copolymers; polyurethane foams. DOW CORNING CORP. 22 June, 1966 [16 July, 1965(2)], No. 27971/66. Addition to 955,916. Headings C3R and C3T. The invention comprises block copolymers having formulµ selected from:- (1) R a Si[(OSiMe 2 ) n (OSiMeG)dOSiMe 2 G] 4-a  (2) GMe 2 Si(OSiMe 2 ) n (OSiMeG) b OSiMe 2 G (3) Me 3 Si(OSiMe 2 ) n 1(OSiMeG) c 1OSiMe 3 , and (4) R a Si[(OSiMe 2 ) n (OSiMeG) c OSiMe 3 ] 4-a  wherein each R is a hydrocarbon (h.c.) radical free from aliphatic unsaturation and contains from 1 to 10 C atoms, Me is a methyl radical, G is a radical of the formula -D(OR<SP>11</SP>) m A, wherein D is an alkylene radical, R<SP>11</SP> is composed of ethylene radicals and propylene and/or butylene radicals, the amount of ethylene radicals relative to the other alkylene radicals being such that the C/O ratio in the total OR<SP>11</SP> blocks ranges from 2À3: 1 to 2À8: 1, m has an average value from 25 to 100, A is where R<SP>1</SP> is a radical free of aliphatic unsaturation selected from h.c. radicals and radicals composed of C, H and O, the O atoms being present as ether linkages, the radical A containing a total of less than 11 atoms exclusive of H atoms, a is 0 or 1, n has an average value (a.v.) of from 6 to 420, n<SP>1</SP> has an a.v. of from 101 to 420, d has an a.v. of from 1 to 30, b has an a.v. of from 11 to 30, c has an a.v. of from 5 to 30 and c<SP>1</SP> has an a.v. of from 11 to 30, the copolymers containing at least 13% by wt. of -OSiMe 2  units calculated on the wt. of the copolymer. The copolymers are best made by reacting in known manner the allyl ether of the desired polyalkylene glycol with the correspondings iloxane containing Si-H groups, the preparations of which are also described. Examples describe the above preparation of the block copolymers. Uses.-For controlling foam formation in polyurethanes based on polyesters and polyethers containing at least 2 OH groups per molecule: examples are given of conventional polyester- and polyether-forming reactants, isocyanates, blowing agents and catalysts. In Example (4) the product of each preceding example was used as a surfactant in making polyurethane foams; thus, the surfactant, polyether triol (M.W. = 3,500), monofluorotrichloromethane, water, triethylenediamine and stannous octoate, were mixed together and toluene diisocyanate added thereto, and the resulting mixture was allowed to foam.
Patent GB-381336-A (GB)
Title: Improvements in centrifugal pumps
IPC: F04D1/06
Filed: 1931-10-09
Abstract: 381,336. Centrifugal pumps. REES ROTURBO MANUFACTURING CO., Ltd. and CLARK, C. B., Wednesfield Road, Wolverhampton. Oct. 9, 1931, No. 28112. Addition to 280,120, [Class 110 (i), Centrifugal and screw fans &c.]. [Class 110 (i).] A multi-stage pump has impellers of the kind described in the parent Specification and each impeller A rotates in a chamber K substantially larger than itself. The chambers K are not provided with vanes, and the water passes from the peripheries of these chambers to the eye of the next impeller by passages L with vanes having outer tips nearly tangential to the peripheries of the chambers K, and having inner tips which are substantially radial. The liquid thus enters the impeller eyes in an axial direction. The impellers are held in the correct positions by sleeves C, the outer ends of which abut against split rings D in circumferential grooves E in the shaft. Packing glands J encircle the grooves to prevent leakage.
Patent GB-1401910-A (GB)
Title: Method of and apparatus for extracting liquid from a vessel
IPC: F04F3/00
Filed: 1973-06-13
Abstract: 1401910 Sample extraction method and apparatus GREINER ELECTRONIC AG 13 June 1973 [14 June 1972] 28202/73 Heading G1B [Also in Division F1] Liquid (e.g. a blood sample) in a vessel 2 is extracted from the vessel by a method comprising bringing an opening in extraction member 5 to a position immediately above the surface of the liquid but without touching the liquid, producing low pressure at the opening so that liquid flows through the opening into member 5 and lowering member 5 at the same speed as the speed at which the liquid level in vessel 2 falls, so that flow of liquid into member 5 continues while the outside surface of the member remains uncontaminated. The apparatus may comprise cam 6 operating cam follower rod 4, rod 4 being spring-loaded upwardly and having suction tube 5 secured to it. Vessels 2 may be conveyed past the device. The vessels may be immersed in thermostat bath 1.
Patent GB-369955-A (GB)
Title: Improvements in or relating to means for operating the dampers of the flues of boiler and other furnaces
IPC: F23N3/08
Filed: 1930-09-22
Abstract: 369,955. Furnace dampers. ROTHWELL, E., Birch Hill, Rochdale, and MARSHMAN, G., Trinity Street Works, Bury. Sept. 22, 1930, No. 28216. [Class 51 (i). Means for operating flue dampers of the kind in which the damper is further opened by opening the furnace door and returned slowly to its normal position when the door is closed comprises an electric motor 17, a sliding shaft 9 with which the motor is geared in such a manner that in one direction of rotation the motor causes the shaft to slide in one direction and open the damper 6 and in its other direction of rotation the motor causes the shaft to slide in the other direction and close the damper, a direction selecting switch 18 for controlling the direction of rotation of the motor operated by the furnace door 4 and " opening " and " closing " switches 19, 20 adapted to be actuated by the shaft 9 to stop the motor, the shaft 9 being provided with electric contacts 21, 22 engaging with contacts on the switches 19, 20. When the furnace door is opened, the switch 18 is operated to supply current to the motor 17 through the switch 19. The motor drives a "free wheel" pulley 15, connected by a belt 13 to a screw-threaded pulley 11 engaging with a thread 9a on the shaft 9 which is moved towards the left to open the damper. When the contact 21 reaches the contact 26 the motor circuit is broken through an open switch 30 and the damper 6 is opened to its full extent. At the same time the contact 22 moves along to a contact 32 of the switch 20. Upon closing the door, the switch 18 is again operated to supply current through the switch 20 to drive the motor in the opposite direction and through the smaller " free wheel " pulley 16, belt 14, and pulley 11 drive the shaft 9 in the opposite direction to close the damper. The shaft 9 is brought to rest when the contact 22 reaches the contact connected to the open switch 38. The switches 19, 20 are provided with tumbler switches 28, 29, 30 and 36, 37, 38 for manipulation to vary the travel of the shaft 9 and the position of the damper. The leads containing the tumbler switches may be provided with signal devices.
Patent GB-825426-A (GB)
Title: Heat exchanger
IPC: F28D7/16
Filed: 1956-09-15
Abstract: 825,426. Tubular heat exchangers. HAMILL, T. M. Sept. 15, 1956, No. 28240/56. Class 64(3) A vapour to liquid heat exchanger comprises a shell 2 containing parallel tube banks 1 connected in series by header compartments 11 in which deflector means are provided for guiding a fluid (e.g. pineapple juice) from one bank of tubes to the next, each header compartment being open. only to the ends of the tubes of two adjoining tube banks and having an arcuately concave return wall 16 confronting the ends of said tubes. In the form shown the shell 2 is of rectangular cross-section and is stregthened e.g. by angle irons 3 to resist internal pressure: Each tube bank comprises equally spaced parallel tubes 4 extending between tube plates 5 to each of which is secured a header box, one of the tube plates being connected to the shell through an expansion joint 6. Each header box comprises a door 9 hinged to the associated tube plate and divided into compartments each straddling an adjacent pair of tube banks, the compartments 11 in the two headers being relatively-staggered so that the fluid is caused to flow through successive tube banks in series. One of the headers may be provided with inlet and outlet manifolds 17, 18 (Fig. 1) for comnection to suitable piping or to a similar heat exchanger where two or more are grouped together. Openings 19 (normally plugged) are provided in the headers for thermometers when required. Vapour, such as steam; enters the shell 2 through an inlet 20 and is directed by longitudinal baffles 21 on the tubes in a plurality of passes of decreasing cross-sectional area. At the same time, in each pass, the vapour is directed in a sinuous path across the tubes by transverse baffles 27 (Fig. 8) which serve also as intermediate tube supports. The baffles 21 and the shell 2 of the heat exchanger may be slightly inclined to cause the steam condensate to drain into a sump 30 from which it is removed through an outlet 32. Uncondensed vapour is discharged from the sump 30 through pipes 31.