baber/WOPTO huggingface dataset:
Patent GB-1434315-A (GB)
Title: Nuclear reactor installation including a protection arrangement
IPC: G21C9/033
Filed: 1974-04-08
Abstract: 1434315 Controlling nuclear reactors WESTINGHOUSE ELECTRIC CORP 8 April 1974 [18 April 1973] 15411/74 Heading G6C In an installation including a reactor 10 having multiple primary coolant loops A, B, C each comprising a pump 20 and steam-generator 22, rapid reduction of reactivity in emergencies is effected by introducing, into one or more of the loops, a neutron absorber fluid from a tank 35 normally isolated from the loops by valves 32, 42. In emergency, the valves 32, 42 (and valves 38, 50) are opened automatically so that the pressure side of the pump 20 in coolant loop C is connected via line 30 to the tank 35; this results in the fluid being urged from tank 35 into loops A and B (and, possibly, also loop C) at the intake side of the pumps 20. A pressure equalizing line 54 precludes seepage of the fluid from the tank 35 in the event of leakage at valves 32, 42 in normal operation.
Patent GB-593875-A (GB)
Title: Speed controlling or governing device for internal combustion engines
IPC: F02D9/00
Filed: 1945-06-19
Abstract: 593,875. Speed governors. HOULDING, H. June 19, 1945, No. 15505. Addition to 563,416. [Class 57] A modification of the governor described in the parent Specification in which a weight 20 is pivoted at 21 and connected by a link 23 to an extension of the arm 7. When the vehicle is ascending a gradient the weight 20 tends to swing to the right and assists the spring 5 to maintain the unbalanced valve open. When descending the gradient, the weight assists the spring to close the valve. Fig. 2 shows an arrangement wherein the spring 5a is anchored to a pin 6a on a rod 23a carried by a diaphragm 25. The pendulum 36, when the vehicle ascends a gradient, opens a valve 31 to connect the chamber 26 to a pipe 42 and induction pipe vacuum to move the rod 23a to cause the spring to exert a greater force to maintain the valve open. The valve 31 is loaded by an adjustable spring 32 and the pendulum may be connected to a dashpot device 40.
Patent GB-312664-A (GB)
Title: A process for preparing anhydrous perborates
IPC: C01B15/12
Filed: 1929-05-17
Abstract: 312,664. Schoenberg, G. May 30, 1928, [Convention date]. Anhydrous sodium perborate is prepared by first heating the crystalline salt at 40-100‹ C. with agitation. and if desired in vacuo until say three molecules of water of crystallization have been driven off, and then completing the dehydration in vacuo at say 100-120‹ C., if desired with agitation and in a current of dry inert gas such as air. In the second step the vapour tension must not substantially exceed 40 mms. of mercury, and is preferably maintained below 30 mms., and the temperature where the greatest concentration of water vapour occurs. especially where it leaves the apparatus, should be lower than elsewhere. The process may be effected in a rotatable aluminium drum. The product from the first step of the process may be shaped into tablets &c. and dehydration be then completed in the containers such as glass vessels employed for storage or transport of the anhydrous salt.
Patent GB-401029-A (GB)
Title: Paving blocks for hard wear
IPC: E01C5/22
Filed: 1932-06-01
Abstract: 401,029. Composite paving blocks. DUFFY, J., River Road, Barking, Essex. June 1, 1932, No. 15561. [Class 87 (i).] Paving-blocks, particularlv suitable for roadsurface markings, comprise a metal plate 1 formed with a recess 4 engaged by a corresponding projection 5 on a wood block 2, the two members being drawn into close engagement by a rod 6 screwed into an internally threaded boss 7 on the plate 1 and passing through a bore 9 in the block 2, the other end being threaded to receive a nut 8 located in a recess in the lower part of the block. In addition, grooves or other recesses in the top of the block 2 may be engaged by ribs on the plate 1, which may also have a rubber covering vulcanized thereto and additionally secured if desired by interengaging projections and recesses.
Patent GB-303712-A (GB)
Title: An improved handle for carrying cases or other receptacles
IPC: A45C13/26
Filed: 1928-05-29
Abstract: 303,712. Callcut, J. G. May 29, 1928. Handles.-A handle for carrying cases &c. comprises upper and lower leather strips 4, 5, enclosing between them a steel spring 7 provided near the ends with perforations through which pass studs 7a which extend through the upper strip 4 and pass through guide slots 8 in the upper surfaces of members 3 secured to the wall of the case. A thickening strip 9 of vulcanized fibre &c. is disposed between the spring and the strip 4 to give thickness to. the handle.
Patent GB-593931-A (GB)
Title: A releasing device for wringers
IPC: D06F45/04
Filed: 1945-06-20
Abstract: 593,931. Wringers. ENGLISH ELECTRIC CO., Ltd., COONAN, P. V., and UNDERWOOD, T. A. June 20, 1945, No. 15705. [Class 138 (ii)] Means for releasing the pressure between the rollers of a wringer rapidly in emergency consists of a toggle formed of an outer channel section handle 14 pivoted at 13 to the top bar 8 and at 15 to a link 16 which is pivoted at the other end 21 to a channel-section link 20 pivoted to a bracket 18 bolted to the cast base 1 integral with the side stiles 2 and 3. When closed down as shown in Fig. 2, the toggle formed by the handle 14 and link 16 holds the link 20 with its button 31 against a stop 30 on a lever 26, Fig. 4, pivoted at 29 to the stile. The lever 26 is held by a spring 25 in a central position so that for working position the button rests against the stop holding the toggle overset and stable. The release bar 22 forms a rectangular loop with two sides parallel to the rollers, one 'on each side and one short side pivoted to the stile 2. The other short side consists of two flattened ends attached to a plate 23 pivoted at 24 to the stile 3 and held normally central by the lever 26, to which it is coupled by a slot 28 embracing a peg 27. Thus, pressure on either long side of the bar 22 displaces the stop 30 allowing the link 20 to fall in and upset the toggle and the top bar and upper roller to rise. The pivot 7 is lodged in the curled-over end of a sheet metal bracket 6 held in a groove in the stile 2 by its lower end curled over a pin 10 carried in lugs 11 which with lower lugs 12 serve as attachments for the gear-box and driving unit. The pivot pin 7 and either of the pins 13 or 21 may be disengageable for removal of the top bar.
Patent GB-751899-A (GB)
Title: Improved shift device for motor vehicle change-speed gears
IPC: F16H63/30
Filed: 1954-05-27
Abstract: 751,899. Operating change-speed gearing. ZAHNRADFABRIK FRIEDRICHSHAFEN AKT.-GES. May 27, 1954 [June 12, 1953], No. 15708/54. Class 80(2) A change-speed gear has three parallel selector rods 13, 14, 15 provided with five recesses formed between five pairs of projections 35 for engagement by three axially-spaced projections 5, 6, 7 from a transverse sleeve 1 which is slid axially to mesh the latter projections with the recesses and is then turned to slide the selected rod to engage the desired gear, the projections 5. 6, 7 being offset from the vertical so that each serves to move a selector rod in only one direction from neutral position. The sleeve 1 may be operated directly by a ball-mounted gear lever 38, or indirectly through linkage by a column shifter. Rod 13 has one pair of projections 35, while each of rods 14, 15 has two pairs. In the central neutral position shown, projection 5 is engaged between one pair of projections 35 on rod 15 and projection 6 is engaged between one pair of projections 35 on rod 14, so that by turning sleeve 1 in one direction or the other rod 15 may be moved to the right (Fig. 2) to engage first gear or rod 14 may be moved to the left to engage second gear. By sliding sleeve 1 downwards (Fig. 2) from neutral, projection 6 engages between the other pair of projections 35 on rod 15 and projections 7 engage between the other pair of projections 35 on rod 14, so that by turning sleeve 1 in one direction or the other rod 14 may be moved to the right to engage third speed or rod 15 may be moved to the left to engage fourth speed. Similarly. by sliding sleeve 1 upwards from neutral, projection 7 engages between the pair of projections 35 on rod 13 and sleeve 1 may then be turned to move rod 13 tc the right to engage reverse. The operative edges 20 of the projections 5, 6, 7 are rounded so that the effective leverage is smaller at the beginning of the engaging movement of the rods 13, 14, 15. The sleeve 1 has a slot 33 co-operating with a fixed plate 30 formed with three recesses 31 such as to prevent incorrect sliding or turning of the sleeve
Patent GB-1514961-A (GB)
Title: Method of assembly of dynamoelectric machines
IPC: H02K15/16
Filed: 1975-04-16
Abstract: 1514961 Mounting dynamo-electric machine rotors AIRBORNE MFG CO 16 April 1975 [30 April 1974] 15732/75 Heading H2A [Also in Division B3] Different bearing brackets are described for a dynamo-electric machine. A method of centring the bearings is described (see Division B3). One bracket 19 carries a bearing 18 secured therein by adhesive, bracket 19 being located and fastened to stator 11 by wall portion 25, Fig. 6, and integral wings 26 secured in stator 11 by a self-tapping screw S biting into core 11. Another bracket 22 carrying bearing 21 is moulded of plastics material and located on stator 11 by surfaces 33, 34 on the bracket and secured by adhesive. A third type of bracket 40, Fig. 8, is located by its walls 41 fitting inside core 11 and shoulders 45 engaging the top of the core, the bracket being secured by adhesive. A fourth bracket 50, Fig. 10, comprises a wire formed to provide two legs 51 fitting into holes in the core with a central hole formed by a coil 53 of the wire.
Patent GB-1126845-A (GB)
Title: Electronic switching telephone system
IPC: H04Q3/52
Filed: 1967-04-06
Abstract: 1,126,845. Automatic exchange systems. INTERNATIONAL STANDARD ELECTRIC CORP. 6 April, 1967 [8 April, 1966], No. 15790/67. Heading H4K. In a current controlled, self seeking switching network in which calling lines are connected to free links during time slots allocated to these links, in the event that the originally reached link is unsatisfactory for the type of call required, the path to this link is dropped and after a short delay to allow transients to subside another path to a more suitable link is set up. The normal links 32 viz those first reached by calling lines, are primed in TDM manner by an allotter 23 and a calling line is connected to a primed link via a PNPN network 20 in normal manner. Thereafter the link is connected via auxiliary network 37 to a register which causes dial tone from a common source DT to be reverted via the link to the caller. After receipt of all the dialled digits the register sends signals, to the link so that it can be primed during the next occurrence of its time slot, to a call enable circuit which inhibits all lines (except the called line) from marking its end of the network and thus gaining unwanted access to the primed (but semi-busy) link and, to the called line so that it can mark its appearance on the network. When the called side of the connection is complete the register authorizes the transmission of ringing tone and then withdraws. If the called party is busy the register starts a busy tone generator B T . If the dialled digits indicate an outgoing call or a special service e.g. tie line trunk, conference call, centralized dictation, public address, conversation timing, &c. or if the class of service of the caller or called party warrants it (such class of service may be: code-calling, key sending, restricted service, camp-on busy &c.) then the register seizes a features link 35 and when the time slot of the original link occurs the allotter 23 is stopped (using logic 62, 63 and clock 57), the original path is dropped and, after a pause, a new path to the features link is set up. The pause is effected by gating on transistor 54 of pulse 71 which occurs during time slot t1 of the original link. PNPN diode 52 which is connected via diode OR gates to each line circuit has a lower breakdown potential than any switching network diode so that when the original path is released and the calling line produces a calling potential, this diode conducts via transistor 54 so as to clamp the calling potential to its own breakdown potential. After a time sufficient to allow network transients to die down, transistor 54 is turned off whereby the calling potential can rise in ramp fashion and hence eventually fire a path through the network to the features link. Completion of a path to this link results in a signal for restarting the allotter. It may be noted that features links are not governed by the allotter.
Patent GB-659532-A (GB)
Title: Thread consumption regulator for sewing-machines
IPC: D05B51/00
Filed: 1949-06-14
Abstract: 659,532. Sewing-machines. MIKOLAS. F., and KRECEK, R. June 14, 1949, No. 15847. Convention date, June 19, 1948. [Class 112] Governing needle thread in chainstitching with eyed needles.-Thread is pulled tnrough the tension device on the work-entering stroke of the needle by a member forming part of the needle-driving mechanism, the thread between the pulloff and the needle being automatically clamped by a device actuated by the tension of the thread. In the form shown, applied to a blind-stitching machine with a curved needle 7 carried by an oscillating shaft 3, the needle-carrying arm 5 has a looper-actuating tail 9 which carries a radial pin 10 to engage the thread between the tension device 15 and an eye 13a in a pivoted arm 13; the arm 13 swings between fixed abutments 12d, 12c, being biassed against the former by a weight, and the thread passes from the eye 13a between the arm and the abutment 12c and then through a notch 12e and fixed eye 12f on its way to the needle. As the needle enters the work the pin 10 pulls out a loop of thread as shown dotted, the tension in this loop pulling the arm 13 clamping the thread between it and the abutment 12c. In a machine with a straight needle-bar the thread is led through an eye in the top of the needle-bar instead of being engaged by a pin, and the arm 13 and abutments are rearranged to lie in a vertical line
Patent GB-1022031-A (GB)
Title: Improvements in or relating to basic esters of 3,5-dimethoxy-4-alkoxy-benzoic acids
IPC: C07C69/90
Filed: 1963-04-23
Abstract: The invention comprises compounds of the formula <FORM:1022031/C2/1> wherein R represents a saturated or unsaturated straight or branched chain C2- 5 alkyl group which may be substituted by a basic nitrogen-containing group of R1 and R2 represent identical or different straight or branched chain saturated alkyl groups, or the groups R1 and R2, together with the nitrogen atom to which they are attached, form a heterocyclic group which may be interrupted by a further hetero atom, and n = 2 or 3.  The compounds are prepared by reacting a 3,5-dimethoxy-4-alkoxy-benzoic acid or a reactive derivative thereof, with a basic alcohol of the formula <FORM:1022031/C2/2> or with a reactive derivative thereof.  3,5 - Dimethoxy - 4 - alkoxy - benzoic acid chlorides are prepared by alkylating a 3,5-dimethoxy-4-hydroxy-benzoic acid or an ester thereof to form a 3,5-dimethoxy-4-alkoxy-benzoic acid or an ester thereof, followed, if necessary by hydrolysis of the ester to form the free acid, and reacting the free acid with thionyl chloride to form the acid chloride.
Patent GB-382913-A (GB)
Title: Process of producing silica bricks and the like
IPC: C04B35/14
Filed: 1932-06-06
Abstract: Silica bricks are made by combining with coarse grained quartz a mixture of very finely ground quartz with lime and/or clay characterized in that this mixture passes a sieve of 10,000 mesh per sq. cm. and the proportions of the mixture are regulated so that the mixture melts at or below the maximum burning temperature of the brick.  In making the finely divided mixture, the clay may be added in the dry state or in the form of aqueous clay mud.  The finely divided mixture may be mixed with a small quantity of quartz particles which pass a sieve of 200 mesh per sq. cm. before mixing with the main mass of coarse quartz particles larger than 200 mesh per sq. cm.  In an example a finely divided mixture composed approximately of 12 per cent silica, 5,5 per cent clay and 1 per cent lime, is mixed with water, 7,5 per cent of quartz between 200 and 16,000 mesh per sq. cm. added, and then 74 per cent of coarse quartz added to the mix.  If desired all the ingredients may be added dry, and the water added afterwards.
Patent GB-1147204-A (GB)
Title: Servo valve
Inventor: PERCIVAL HAROLD JAMES
IPC: F15B13/043
Filed: 1966-04-12
Abstract: 1,147,204. Valves. Z. OLSEN. 12 April, 1966, No. 16039/66. Heading F2V. [Also in Divisions G3 and H1] In an electrohydraulic servo-valve (see Divisions G2-G3) a cantilever 80 movable about a torsion shaft 83 co-operates with a nozzle 76 to control the flow into chamber 68. The cantilever is connected to the armature 89 of an electromagnet having coils 85, 86 connected in series, parallel or in series opposition. The coils are encased at 91 and surround a core 90. The assembly is located within a permanently magnetic housing 84, the end of which supports a polepiece 92 and the torsion shaft and collects magnetic debris. The nozzle is supplied through a pressure regulator (Fig. 3A) having a filter 74 and a spring-loaded piston 94. The pressure in chamber 68 positions a spool 69 loaded by a spring or, as shown, by pressure at 78. The spool slides in a sleeve 67 supported in an outer sleeve 66 having sealing flanges 66a; and controls flow between inlet P, work ports C 1 , C 2  and exhaust chambers R. The core can have a cylindrical extension surrounding the permanent magnet. Alternatively, a semi-cylindrical permanent magnet forms half of the outer limb of an E-section core.
Patent GB-518813-A (GB)
Title: Improved methods of obtaining coloured images
IPC: H04N11/00
Filed: 1938-05-30
Abstract: 518,813. Television. HEWSON, B. T., and LOCAN, A. May 30, 1938, No. 16062. [Class 40 (iii)] [Also in Group XX] In colour television, an oscillating optical or electro-optical colour filter device is located in front of a television camera and also between the cathoderay oscillograph and the viewing screen in the receiver. As shown. the electro-optical colour filter device comprises a mount 40 in which are mounted polarizing and analysing prisms or lenses 41, lenses 42, a Kerr cell 43, and a crystal plate 44 cut to pass only polarized light above a certain wavelength. A switch or rheostat driven by the camera is provided for varying the voltage applied to the Kerr cell 43. A cam 80 driven by a flexible shaft 81 oscillates the plate 44 backwards and forwards across the Kerr cell 43. The device may be reversed. In a modification the polarizer and analyser are rotated. In a further modification the Kerr cell is omitted and a composite crystal plate formed of a mosaic of differently cut crystals is employed. Specification 518,812 is referred to.
Patent GB-936213-A (GB)
Title: Bearing assembly
Inventor: STEEL THOMAS
IPC: F01D25/18
Filed: 1961-05-03
Abstract: 936,213. Ball-bearings; lubricating. ROLLSROYCE Ltd. April 27, 1962 [May 3, 1961], No. 16089/61. Classes 12 (1) and 12 (3). A bearing assembly 11 comprises a bearing, e.g. a ball-bearing for a substantially verticallymounted shaft 10, a lower chamber 27 to which may drain lubricant from the bearing, and a further lower chamber 32 having a rotatable wall 34 with an inner surface as shown, on to which a tube 33 delivers lubricant from the chamber 27 and up which lubricant travels for return to the bearing on rotation of the wall 34. Bearing balls 12, a cage 13, inner and outer races 14, 25 and the chambers 27, 32 are within a housing 15, parts 20, 21 of which are connected to a fixed structure, other parts 15, 16 being secured to the shaft 10, labyrinth seals being at 23 and 24. The parts 15 and 16 are located against a ring 17, threaded on to the shaft 10, and a shoulder 18 on the shaft 10, respectively. An upper chamber 26 above the balls 12, communicating therewith through a space 30, is supplied with lubricant through a pipe 28. In the form shown the bearing assembly is a thrust bearing and the journalled shaft 10 carries the compressor and turbine of a gas-turbine engine.
Patent GB-812610-A (GB)
Title: Improvements in and relating to the continuous horizontal production of embossed or reinforced glass sheets
IPC: C03B13/08
Filed: 1956-05-24
Abstract: 812,610. Glass manufacture. CASTRO, A.F.U.DE. May 24, 1956 [May 24, 1955], No. 16156/56. Class 56. A process for the continuous production of embossed or reinforced glass sheets, in which glass is discharged in fluid condition from tank type ovens and subsequently subjected to treatment by horizontal passage through a system of parallel rolls, comprises cooling the edges of the glass sheet by a jet or jets of air directed to impinge on the edges. The glass passes between internally cooled steel rolls, one of which incorporates the pattern to be embossed, and over carrying rolls to a second series of rolls in an annealing oven at a greater speed to tension the sheet, the jets of air being arranged between the rolls to impinge perpendicularly upwards on the edges of the sheets to prevent falling along the edges as well as to cool them, the jets being controlled by valves and other measuring devices.
Patent GB-368159-A (GB)
Title: An improved maximum demand device for use on electricity meters
IPC: G01R11/60
Filed: 1931-06-04
Abstract: 368,159. Supply meters. LANDIS ET GYR, SOC. ANON., 1, Hofstrasse, Zug, Switzerland. June 4, 1931, No. 16162. Convention date, June 12, 1930. [Class 37.] The indicating member of a maximum demand meter comprises a drum 21 capable only of rotary movement and frictionally coupled to bevel gearing 19, 20 by a spring 22. The driving arm 17 is carried on a tubular shaft 11 which is returned to its zero position by a spring 13 on disengagement of the gears 10, 12, the wheel 10 being reciprocated by an armature 6 of the timing relay 8. The drum 21 is returned to its zero position by engagement with a rubber cone 24 which can be pressed inwardly and rotated after disengaging the locking-pin 27.