baber/WOPTO huggingface dataset:
Patent GB-1207956-A (GB)
Title: Improvements in or relating to eddy current couplings
Inventor: HERRICK PHILIP ELLIOTT
IPC: H02K49/04
Filed: 1966-11-29
Abstract: 1,207,956. Eddy current couplings. MAWDSLEY'S Ltd. 16 Nov., 1967 [29 Nov., 1966], No. 53282/66. Heading H2A. An eddy current coupling has a rotatable interdigitated pole assembly 8 surrounding a field structure 6 and a bearing 23 for the pole assembly mounted within the field structure in a housing which includes a ring 52 and end pieces 54, 55 of non-magnetic material and has passages for the flow of coolant. The bearing housing in the form of a castellated steel ring 29 is secured in recess 28 in field structure 6 and the cooling air A flows through the castellations to cool the bearing. The pole assembly is mounted on shaft 9 which is additionally supported in a bearing 38 and carries the 32-pole, permanent magnet rotor 44 of a tachogenerator whose stator is mounted on end frame 7. An inductor member 10 mounted on shaft 4 of an electric motor surrounds' the pole assemby 8 and in operation the flux from field winding 26 links with the pole assembly and inductor member. In a modification the field structure is provided with a ribbed counterbore acting directly as the bearing housing, Figs. 3 and 4, (not shown). The bearing is preferably a roller bearing. Cooling air is drawn through inlet 34 in casing 1 by the action of fan blades 31a integral with inductor 10 and divides for part to flow through holes 31b in the inductor and cool pole assembly 8 and the remainder to flow directly over the inductor to outlet 33. The auxiliary cooling air A after passing through the bearing housing flows around the field structure to outlet 33.
Patent GB-1393890-A (GB)
Title: Curtain suspension system
IPC: A47H1/04
Filed: 1971-11-17
Abstract: 1393890 Suspending curtains W J C STANLEY 16 Nov 1972 [17 Nov 1971 22 Nov 1971]  53329/71 and 54035/71 Heading A4B A curtain suspension assembly comprises a track 10 which supports an endless tape 12 which carries a plurality of curtain suspension eyes 14, the tape 12 including a depending portion which facilitates attachment of a curtain to the eyes 14 at a level below that of the track 10. The eyes 14 each include feet 30, 31 defining grooves 32, 32 which receive edges of one of a series of slots in the tape 12 by resiliently deforming the eye 14. The tape 12 is guided at its longitudinal edges in channels 20, 21 in the track 10. End fittings 16, 16' include guide surfaces aligned with the channels 20, 21 and include stub portions which fit in recesses 26, 27 in the track 10. The track includes a flange 22 which may be screwed to a wall. The track may be discontinuous and defined by spaced brackets.
Patent GB-1117423-A (GB)
Title: Flat plastics bags and their manufacture
IPC: B65D33/00
Filed: 1965-12-16
Abstract: 1,117,423. Plastics bags with opening means. BEMISCO Inc. 16 Dec., 1965 [6 Jan., 1965], No. 53525/65. Heading B8K. [Also in Division B5] Edges 31, 33 (Fig. 2) of the mouth of a plastics bag are curved in opposite directions to facilitate opening. The bag may be formed from a web 1 by first forming a line of weakness 3, for example a line of perforations, along an are with a large radius. The sides of the web are then folded over and sealed together at 7, and the bag lengths are subsequently pulled apart and seamed at one end.
Patent GB-1461629-A (GB)
Title: Fire-resistant polyester compositio
IPC: C08G63/682
Filed: 1974-12-13
Abstract: 1461629 Fire resistant compositions TOYO BOSEKI KK [trading as TOYOBO CO Ltd] 13 Dec 1974 [17 Dec 1973] 53970/74 Heading C3R [Also in Division D1] A fire resistant composition comprises (a) a polyalkylene terephthalate copolyester containing units of the general formula wherein Y is oxygen, C 1-6  alkylidene or a C 3-6  cycloalkylidene group, and (b) a phosphorus compound of the formula  wherein R 1  is an optionally substituted C 1-18  hydrocarbon group, R 2  is an optionally substituted C 2-20  hydrocarbon group, x and z are 0 or 1 and n is not less than 3, the phosphorus compound being present in an amount corresponding to 0À05 to 1À0% by weight, based on the total composition, of phosphorus atoms, and the bromine content of the copolyester is from 2 to 15% by weight. The examples describe (a) preparing copolyesters from dimethyl terephthalate, ethylene glycol and one of the following compounds and (b) blending the copolyester with a phosphorus compound having one of the following repeating units the phosphorus compounds having number average molecular weights ranging from 8800 to 12,000.
Patent GB-1245845-A (GB)
Title: Improvements in or relating to piezoelectric ceramics
IPC: C04B35/46
Filed: 1969-11-04
Abstract: 1,245,845. Piezoelectric ceramics. NIPPON ELECTRIC CO. Ltd. 4 Nov., 1969 [5 Nov., 1968], No. 53986/69. Heading CIJ. Piezoelectric ceramics have compositions defined by the formula wherein 0 < u < 1À00, y + z > O and x + y + z = 1 and suitably within the polygonal are shown in Fig. 4. Up to 25 atom per cent of the Pb can be replaced by Ba, Ca or Sr.
Patent GB-1275016-A (GB)
Title: Method and apparatus for coating surfaces
Inventor: BUCKINGHAM ROBERT LELAND
IPC: B05B13/00
Filed: 1970-11-13
Abstract: 1275016 Coating apparatus INTERNATIONAL BUSINESS MACHINES CORP 13 Nov 1970 [23 Dec 1969] 54010/70 Heading B2L Apparatus for coating an object 26 with droplets comprises a coating chamber 12 and a second chamber 10 connected thereto so that coating medium from a nozzle 20 is carried by inert gas from a nozzle 24 from the chamber 10 to the chamber 12 and falls as droplets onto the object 26. The coating medium is provided from a heated storage chamber 17 and the inert gas is introduced through heated water in the chamber 38. Heavy droplets produced in the chamber 10 fall back to the bottom of the chamber to be removed through a drain and of the droplets entering the chamber 12 the light ones rise and escape through the open top of the chamber and the heavier ones, which come within a small range of sizes, fall either on to the object 26 or to be collected thereunder! Water is introduced to the sides of chamber 12 by a spray 35 and is carried away through a drain 34. The object is stood on an internally cooled work holder 28. A heater 30 is provided. The chamber 10 is surrounded by a heated water jacket 36.
Patent GB-1193560-A (GB)
Title: Preparation of Palladium-pi-Allyl Complexes
IPC: C07F15/00
Filed: 1968-11-14
Abstract: 1,193,560. Palladium II-allyl complexes. W. R. GRACE & CO. 14 Nov., 1968 [26 Dec., 1967], No. 54050/68. Heading C2J. [Also in Division C3] Palladium-#-allyl complexes are prepared by mixing a palladium-II-salt-nitrile complex Pd- X 2 (RCN) 2 , where X is Cl, Br, I, CU 3 COO-, NCOO- and R is an alkyl group having 1-4 carbon atoms, with excess mono-olefin having a 6. pt. 125-300‹ C. and heating at 125-250‹ C. for 5-360 minutes. The palladium-#-allyl complex crystalizes out on cooling to 0-110‹ C. The mono-olefin may be: allyl benzene; α-methylstyrene, p-nitro-α-methyl styrene; p-methoxy-α-methyl styrene; 2- cyclohexylpropene; vinyl naphthalene; or dodecene. The palladium II salt-nitrile complex may be prepared by mixing the palladium salt with excess nitrile, maintaining the temperature at 0-100‹ C. for 10-60 minutes, and removing excess nitrile by vaporization. The palladium #-allyl complex may be used as a catalyst for the polymerization of butadiene.
Patent GB-1362814-A (GB)
Title: Evaporative heat exchangers
IPC: B01D3/34
Filed: 1971-06-28
Abstract: 1362814 Evaporative heat exchanger BALTIMORE AIRCOIL CO Inc 28 June 1971 [19 May 1971] 54087/73 Divided out of 1362811 Heading F4K In a heat exchanger comprising an injector duct in which air is evaporatively cooled by contact with sprayed water, which subsequently collects in a sump 16 whilst the cooled air passes out of the duct, the spray means 15 are located at the air inlet end of the duct to cause a con current flow of air through the duct, and pump means providing a variable output therefrom to the spray means and hence regulation of the air flow through the duct, are connected between the sump 16 and the spray means 15. 34 is a heat load which may comprise, e.g. a cooling tower or a surface condenser. In the arrangement shown, the need for regulation is detected by a thermal sensor 36 in the outflow line 17 from the sump. The pump means in this case comprises pump 33, return by-pass line 32 and valve 31. Initially the sensor 36 acts (through 17 and 27) to partially close movable dampers 19m at the duct outlet. Thereafter switch 29 is energized to open valve 31 thereby allowing reciroulation (through by-pass 32) of some of the pumped water and causing a reduction of the water supply to spray heads 15. As a consequence the injected air flow is also reduced. In a modified arrangement (Fig. 2) there are no adjustable dampers at the duct outlet and regulation of the spray head water supply is by a valve (45) in the line 13, said valve being actuated by sensor 36. A by-pass line 32 is still provided but is utilized only to maintain a uniform pump discharge pressure. Another arrangement described for regulating the water flow to the spray heads 15 utilizes two independently operable water pumps (see Figs. 4, 5) which are connected together in series or in parallel and which may be of the same or of differing output capacity. The pumps may be regulated by temperature sensors.
Patent GB-1493927-A (GB)
Title: Audio-frequency oscillators
IPC: A01M29/18
Filed: 1974-12-16
Abstract: 1493927 Unijunction transistor oscillators ELECTRONIC CONCEPTS Ltd 27 Feb 1976 [16 Dec 1974] 54221/74 Heading H3T [Also in Divisions Al and G5] In an audio-frequency oscillator such as for repelling mosquitoes including a unijunction transistor relaxation oscillator 1 having a time constant circuit including a capacitor 5 and a charging resistance 6, 8, the charging resistance includes a transistor conduction path 8 which is controlled by a circuit 9-13 having a cylically varying value whereby the frequency of the audible output is cyclically varied in value. As shown the output from a unijunction transistor relaxation oscillator 9-13 of a few Hz controls the charging resistance of transistor 8 so that the audio frequency tone of a few kHz from a loud-speaker 2 of the oscillator 1 is swept cyclically at this same frequency of a few Hz.
Patent GB-1202877-A (GB)
Title: Improvements in apparatus for delivering viscous liquids
Inventor: HORSFORD JACK IRVINE
IPC: F04B13/02
Filed: 1967-12-04
Abstract: 1,202,877. Mixing liquids in proportions. EXPANDITE Ltd. 4 Dec., 1968 [4 Dec., 1967], No. 54995/67. Heading B1C. [Also in Division F1] In apparatus for delivering at least two viscous liquids in predetermined proportions comprising at least two reciprocating pumps 1, 2 preferably double acting bucket pumps in which the piston rods 5 connect through a cross-member 6 to a pneumatic ram 14, at least all but one of the pistons have a lost motion coupling whereby the strokes of the pistons may be varied. As shown a rod 8 attached to piston rod 5 has a screw thread 9 with adjusting nuts 11, 12 and passes through a hole 10 in member 6. Screwing up or unscrewing nuts 11, 12 alters the distance 17 between abutment 13 and member 6. The liquids are fed via outlets 4 to a motor driven mixer 31 (Fig. 4 not shown), and the strokes of the piston may also be adjusted to compensate for different filling rates due to differences in viscosity.
Patent GB-1119610-A (GB)
Title: Franking meter system
IPC: G07B17/00
Filed: 1966-12-12
Abstract: 1,119,610. Franking meter systems. GENERAL RESEARCH Inc. 12 Dec., 1966 [13 Dec., 1965], No. 55576/66. Heading G4H. In a franking meter system, a subscriber station comprises a franking meter 10, Fig. 2, having printing means for printing stamp values of variable amount, a credit register storing the value of the credit present in the meter, means coupled to the credit register for reducing the value therein in response to each printing operation and means for receiving an electric signal for increasing the credit value in the register. The signals for increasing the credit balance come from a central station at a distance from the subscriber station. The credit register may comprise 5 decade stepping switches S1-S5 having carry connections between each switch and the next higher. The value to be printed is set by levers 18 and at each printing operation this value is subtracted by a mechanical connection 100 which causes a cam contact 100A to send pulses to step the lowest switch S1. When the value in the register drops below $50 a light 22 lights and a signal is transmitted via leads 34 and 45 to the central station, for this purpose a connection from the 5 contact of tens switch S4 and S5 are made so that at a value of 50 relay K2 is energized and holds over contacts 108 and contacts 112 of relay K1. To prevent a value being printed which exceeds the value in the register, the lower three decades of the credit register have resistors 132, Fig. 3, connected between the wipers and they are connected in series so that the total resistance represents the value of these decades. The print value setting levers 18A-18C are connected to potentiometers 130A-130C which are interconnected to give a corresponding resistance. When the upper two decades are zero, relay 124 picks to cause a signal to be applied to point X between the two sets of resistors. Each set is connected to a relay K5A, K5B. As long as the credit store has the greater value relay K5A is energized more than K5B and contact is made to point 134. This enables franking to take place. As soon as the credit balance is less than the value set up for franking contact is made to point 135. This disables the apparatus and lights a lamp 24. Further credit is entered from the central station by pulses transmitted over lines 32 and 43 which are applied to step the hundreds switch S5. The number of pulses is the complement of the required value. Thus if it is desired to enter 200, eight pulses are sent. This resets relays K2-K4. If more than one franking machine is connected to a single central station, the individual franking machines are identified by addresses and control signals are preceded by an address code. The value of the credit balance and the total value franked are displayed through windows on the franking machine. A camera is provided for photographing these values to provide a check. The camera 28 may be operated by a local switch 49 or by signals at random intervals over line 152 from the central station. Magnetic core or other types of store may replace the stepping switches.
Patent GB-1199360-A (GB)
Title: Variable Angle Lay-Barge
Inventor: LAMB JAMES DONALD
IPC: B63B27/36
Filed: 1968-11-22
Abstract: 1,199,360. Pipe laying-barge. NORTH AMERICAN ROCKWELL CORP. 22 Nov., 1968 [1 April, 1968], No. 55612/68. Heading F2P. A variable angle lay-barge comprises a buoyant hull 10 having a slotted opening extending therethrough preferably from the stern of the hull at least half way to the bow, and a tiltable cradle 14 which is pivoted to the hull near the centre of gravity of the barge, at 18, and which extends through the slotted opening, and means, e.g. jacks 20, for positioning the cradle 14 at a predetermined angle for laying underwater flow-lines. The jacks 20 are mounted, one at each side of the cradle, upon which is mounted a stationary clamp 26 for securing the previously laid portion 27 of a flow-line, or riser, a rotatable clamp 28 for orientation the next section 30 of the line to be laid, and a travelling chuck 32 for holding the section 30 while it is fastened to the portion 27. A crane 22 is adapted to hoist pipe sections 24 upon the cradle 14. The hull 10 has a structural tie 12. Shock absorbers may be interposed between the jacks 20 and the hull 10.
Patent GB-1287468-A (GB)
Title: A rolling mill
Inventor: PROPERZI ILARIO
IPC: B21B45/02
Filed: 1969-11-13
Abstract: 1287468 Rolling I PROPERZI 13 Nov 1969 [21 Nov 1968] 55711/69 Heading B3M A multi-unit rolling mill comprises rolling units 2 slidable on horizontal guides 28 on the mill bed 1 and a lubricating and cooling fluid distributer of two parts 5, 6 for each unit, the part 5 being fixed to the top of the unit with nozzles 9 which enter holes 10 in the other part 6 fixed to the mill frame to operate valves for the fluids. Each unit has a set of rolls driven by a grooved shaft 3 engaged with an internally splined shaft 4. The units are connected to cooling and lubricating ducts 7, 8 through the distributer. The cooling fluid is for the guides and the lubricating fluid for the drive gears of the rolls. The opening 10 of the part 6 has a floating ring 11 to guide the nozzle which moves a hollow member 17. The member 17 is spring biased, 20, towards the nozzle 9 so that radial ducts 18 enter a sleeve 16 and are closed when the nozzle is withdrawn. The cooling fluid lines 8 have adjustable flow valves 22 and the lubricant line 7 has a non-adjustable valve (23), Fig. 5 (not shown). The distributer part 5 has bores 24 for hooks 25 of a crane. The unit guides 28 have notched parts 29 to allow disengagement of the unit for raising. The unit is moved horizontally by a fixed screw 34 engaged with a rotatable sleeve (35), Fig. 8 (not shown). The sleeve (35) has a flange (36) engaged with the unit and a polygonal socket (39) for a power tool. The cooling fluid is discharged into channels (33), Fig. 2 (not shown), along the bed. The lubricating fluid is discharged through pipes 43, 44 which include a pivoted connector 44a which closes the pipe when the pipe 44 is pivoted upwards away from the discharge outlet 47.
Patent GB-1410069-A (GB)
Title: Method for production of capacitor elements
IPC: H01G9/04
Filed: 1972-12-04
Abstract: 1410069 Electrolytic capacitors LICENCIA TALALMANYOKAT ERTEKESITO VALLALAT 4 Dec 1972 [2 Dec 1971] 55840/72 Heading H1M The anode of an electrolytic capacitor comprises rectilinear parallel metal filaments 001 interconnected by plate or foil 004 and has an anodically formed dielectric oxide layer 002, the radius r 1  of a filament and the maximum operating voltage U of the capacitor being such that r 1  lies between 0À5 U/Em and 40 U/Em, where Em is the breakdown strength of the formed oxide layer, and the thickness of the oxide layer is equal to r 1 [exp(U/r 1 Em) - 1]. It is shown that the highest specific capacitance is obtained when r 1  = 2U/Em, i.e. it does not only depend on the effective surface area.
Patent GB-1178970-A (GB)
Title: Method of Blasting and apparatus for preparing and Delivering Blasting Gel or Slurry for use in the said method of Blasting
IPC: B01F15/00
Filed: 1966-12-14
Abstract: 1,178,970. Mixing flowing streams. INTERMOUNTAIN RESEARCH & ENG. CO. Inc. 14 Dec., 1966, No. 55968/66. Heading B1C. [Also in Division C1] Mounted on a self propelled vehicle is a mixer plant for the storage of dry and wet components necessary for the formation of a pourable wet explosive, for controlled delivery of the components in variable quantities to a mixing chamber, and for pumping into an adjacent borehole. Thus the composition of the explosive slurry created may be varied while the flow of the slurry into the borehole is maintained. The plant may have a hopper or a tank for each component of the explosive, programmed valve outlets and metering means for the hoppers or tanks, vibrator trays, augers or pumps for conveying the components to a mixing chamber. Dry components enter an upper funnel 40 only when liquid components enter a lower funnel 41 through an annular air space 42 to the region where the nose of the upper funnel enters the upper funnel, the funnels forming a mixing chamber in which final mixing occurs in the lower funnel.
Patent GB-1534268-A (GB)
Title: Colour television
IPC: H04N9/64
Filed: 1974-12-30
Abstract: 1534268 Colour television BRITISH BROADCASTING CORP 19 Dec 1975 [30 Dec 1974] 56049/74 Heading H4F Relates to the transmission and processing of PAL colour television signals in which the two chrominance signals U and V are handled line sequentially in the form U + V and then U - V, the Y signal being handled separately. In a digitial system the above line sequential composite chrominance signal U + V/U - V is sampled at the colour subcarrier frequency f.s.c., and the luminance signal is sampled at 2 f.s.c. Separate processing circuitry is provided for the composite chrominance signal and the luminance signal, the switching and/or mixing means therein being coupled together for control in parallel so that the same operations are performed on the two signals. A chrominance combiner, Fig. 2A, producing the line sequential composite signal U + V/V - V sampled at f.s.c. from received U and V signals, includes comb filters 64, 65, inverter 66, half line frequency switch 67, adder 68 and A-D converter 69. A chrominance separator is described with reference to Fig. 2B (not shown). A luminance input filter, Fig. 4A, includes a comb filter 23, 27 to remove alias components at odd harmonics of half line frequency, filters 22 and 28, subtractor 25, and A-D converter 26 operating at 2 f.s.c. i.e. 8.66 MHz which is less than twice the highest input frequency 5À5 MHz. A luminance output filter is described with reference to Fig. 4B (not shown).  A PAL decoder, Fig. 6A, producing the desired Y at 2 f.s.c. and the composite U + V/U - V at f.s.c. directly from a PAL input signal includes a comb filter 103, 107, filters 102 and 108, subtractor 105 and A-D converters 106 and 109. A PAL coder is described with reference to Fig. 6B (not shown). The comb filters may include digital delay lines in which case the A-D converters are placed at the inputs rather than the outputs of the above circuits.
Patent GB-1267553-A (GB)
Title: An apparatus for controlling automatically the movement of a dredger relative to a predetermined path for performing a dredging operation at a navigable area of a waterway
Inventor: VLASOV VIKTOR GRIGORIEVICH
IPC: G01S5/12
Filed: 1969-11-17
Abstract: 1,267,553. Automatic steering control. NOVOSIBIRSKY INSTITUT INZHENEROV VODNOGO TRANSPORTA. Nov.17, 1969, No.56125/69. Heading G3R.  In a system for maintaining a dredger on a desired course, the distances between the dredger and fixed points on either side of the course are determined by radio range-finders on the ship and any difference utilized to control, differentially, winches hauling the dredger in opposite directions transversely to the course. In Fig. 4, a radio transmitter 1 and a receiver 4 on a dredger (not shown) co-operate with fixed transmitterreceivers 2, 3 on each side of a channel along which the dredger is moved longitudinally by a hauling winch on the dredger operating against a fixed anchor. The difference between output signals 5, 6 from receiver 4, corresponding to the difference between the distances from the dredger to each of the transmitter-receivers 2, 3, is derived from a magnetic amplifier 8 and applied through a selsyn link 9 , 10 to display the difference at 10 and differentially control hauling winches 11, which operate against anchors fixed on each side of the area to be dredged, so that the difference between the distances is maintained constant. This would maintain the dredger on a hyperbolic course but, if desired, the sum of the distances, derived from a magnetic amplifier 15 may serve, through a selsyn link 17, 19 to so adjust selsyn link 9<SP>1</SP>, 10 that the dredger is maintained on a straight course by compensation of the difference control. The selsyn link 17, 19 includes a variable speed gear for selecting the correct amount of compensation and a switch which is operated to obtain the correct sense of compensation or to disable it. An area is covered by dredging a series of channels, corresponding to different values of the difference between the distances, between limits indicated by indicator 10. The sum of the distances, which corresponds to an elliptical locus intersecting the longitudinal channels, is displayed at 18 and a note of the readings of indicators 10, 18 facilitates restoring the dredger to its correct position if it has to be moved e.g. to let a ship pass. The tensions in the hauling lines is stabilized by detectors 12 automatically controlling winches 11.