baber/WOPTO huggingface dataset:
Patent GB-1230608-A (GB)
IPC: B65G53/46
Filed: 1968-11-07
Abstract: 1,230,608. Pneumatic conveyers. W. J. WEEKS. 7 Nov., 1968, No. 52851/68. Heading B8A. [Also in Division F1] Apparatus for feeding granular material from a hopper 102, having a fluidizing base 103, into a pneumatic conveying line 101, comprises a hollow member 8 which is provided with flanges 12, 13 and with a non-return valve 25 and which is guided by a ring 7 secured within a housing 10, the member 8 being reciprocated by supplying gas alternately to the chambers 30, 31 formed between the flanges and the ring 7. Reciprocation of the member 8, which causes a reduction in pressure between a non-return valve 20 in the housing 10 and the non-return valve 25, and flow of gas past the flanges 12, 13, causes material from the hopper to be entrained in a gas flow through the apparatus. Gas under pressure from a supply line 70 is supplied alternately to the chambers 30, 31 through a valve assembly 40 which is actuated by gas passing through a control valve 92, a conduit 81, a valve 80 and conduits 83, 86, the valve 80 being actuated to supply gas alternately to the conduits 83, 86 by a lever 88 and rod 90 engaged by the flanges 12, 13 at the ends of the stroke of the member 8. In operation, on the intake stroke of the member 8, gas passes from the line 70, through a chamber 49 and duct 64 in the valve assembly 40 and into the chamber 31 causing movement of the valve member to the left and also flow of gas past the seal 14 on the flange 12 into the conveying line 101. Movement of the member 8 produces a reduction of pressure at the upstream side of the member and material from the hopper flows past the non-return valve 20. On the discharge stroke, this material is entrained in the gas flow from the chamber 30, through the non- return valve 25 and through the member 8 into the line 101. A conduit 95 provided with a valve 97 may be connected between the gas supply line 70 and the downstream side of the housing 10, whereby the material feed rate into the system may be controlled by limiting the amount of gas passing to the chambers and thereby controlling the frequency of operation of the reciprocating member 8.
Patent GB-1231714-A (GB)
IPC: B25C5/06
Filed: 1969-06-06
Abstract: 1,231,714. Nailing tool. NORDISKA KARTO A.B. 6 June, 1969 [14 June, 1968], No. 28722/69. Heading B4C. [Also in Division F2] A tool for driving pins or staples 5 into a workpiece 9 for securing a plate 8 thereto comprises a guide channel 6 in which is accommodated a movable impact member 7, the guide channel 6 being provided in a nozzle 4 having a bearing surface 11 which, when abutted against the plate 8, locates the guide channel 6 at a predetermined angle relative to the plate 8, whereby pins or staples fed to the channel 6 can be driven at the predetermined angle from the tool. The tool may have a magazine 3 for the pins or staples, a handle 2 and a support 12 having a surface coplanar with the bearing surface 11. The nozzle 4 may be provided with guide members 4<SP>1</SP>, 4<SP>11</SP> defining a slot 10 or with a member (13) (Fig. 6, not shown), such members 4<SP>1</SP>, 4<SP>11</SP> or member (13) providing an abutment for the tool in use against the workpiece 9.
Patent GB-1232789-A (GB)
IPC: A01B45/02
Filed: 1967-12-01
Abstract: 1,232,789. Implement hitch. SISIS EQUIPMENT MACCLESFIELD Ltd. (Gutbrod- Werke G.m.b.H.). 24 Feb., 1969 [1 Dec., 1967], No. 54694/67. Headings A1B and A1P. An implement hitch for mounting ground working apparatus on a tractor comprises a frame 11, implement carrying links 22 pivotally mounted on the frame and a hydraulically operated ram 20 to vary the effective working weight of the implement. The ram, which can be operated to lift the implement, acts on a torque shaft 12 via a slotted lug 16 which enables the direction of application of torque to be reversed and the torque shaft acts on the implement links 22 via the arms 14a and 14b, the compression springs 23a, and a rod slideably mounted between the arms 14a, 14b. The ram may be double acting, being pivotally connected to an arm on the torque shaft 12 and controlled by a change over valve. The ram may be replaced by a manually operated lever 24 and ratchet device 25 and 25a. The hitch may be used to pull a turf-piercing implement comprising a plurality of discs 26 each carrying four spiker blades 27.
Patent GB-1232957-A (GB)
IPC: G21C13/024
Filed: 1970-04-08
Abstract: 1,232,957. Reactors. WESTINGHOUSE ELECTRIC CORP. 8 April, 1970 [29 April, 1969], No. 16600/70. Heading G6C. In a nuclear reactor containment structure, 10, in the event of a loss of coolant accident, steam flows from the reactor 26 and steam generators, 28, to the ice supported in the compartment 18, thereby limiting the pressure peak by condensation. During normal operation, the compartment 18 is enclosed by the doors 54, 58 and 68 which open during an accident. The ice is held in perforated containers, 70, located in frames 72. Heat insulating panels, 118, line the compartment 18 and provide vertical airflow channels to and from the fans 120. The support mountings of the ice containers are formed to minimize earthquake shock damage. The support mountings with the wall, 12, are insulated to eliminate heat flow into the ice bed from the wall.
Patent GB-1257343-A (GB)
IPC: F02P9/00
Filed: 1969-01-14
Abstract: 1,257,343. Automatic speed control. DUCELLIER & CIE. Jan.14, 1969 [Jan.15, 1968; June 24, 1968], No.2083/69. Heading G3R. In order to limit the speed of an I.C. engine, particularly one driving a vehicle, ignition sparks are suppressed whenever the engine exceeds a preset speed. As shown the engine drives a pulse generator 20, 21 coupled to a unit 22 which supplies pulses to an ignition coil 23, the generator is an electromagnetic device but may be replaced by a photo-electric or Hall effect or by a simple contact breaker. An additional pick-up 25 displaced from main pick-up 21 delivers pulses, at a frequency proportional to the speed of the engine, to a monostable multivibrator circuit comprising transistors 1, 7. Each pulse changes the state of the monostable and thus renders a transistor 15 conducting which shorts the output of the main pick-up 21. When the time between pulses from pick-up 25 becomes less than the time constant of the monostable transistor 15 remains permanently conducting and all ignition sparks are suppressed until the speed drops below the limit set by the monostable which is adjustable by a potentiometer 6. In a modification Fig.2 (not shown) the pulses fed to the monostable are derived from the main pick-up 21; this results in only alternate sparks being suppressed. Also the monostable has a fixed time constant and feeds a variable time delay circuit. In a more elaborate circuit Fig.3 (not shown) the pulses from a separate pick-up (or from the main pick-up Fig.4 (not shown) are supplied to a fixed time monostable; when that monostable resets it triggers a variable time constant monostable. A diode gate gives an output when both of these monostables are in their unstable condition indicating an excess speed. The output of the gate triggers a second fixed monostable which controls a fixed time constant circuit to maintain a short on the main pick-up for a fixed time.
Patent GB-1257517-A (GB)
IPC: C08F251/02
Filed: 1969-11-28
Abstract: 1,257,517. Suspension polymerization. CHEMISCHE WERKE HULS A.G. 28 Nov., 1969, No. 58235/69. Heading C3P. In the suspension polymerization of vinyl chloride in the presence of at least two cellulose ethers, at least 40% of the cellulose compounds is a hydroxypropyl cellulose having a degree of substitution of 1-4À6. In the examples it is used together with methyl hydroxypropylcellulose and acrylic acid/tridecyl acrylate copolymer or sorbitol monolaurate. The catalyst is lauroyl peroxide or azobisisobutyronitrile or a mixture of one of these with acetylcyclohexanesulphonyl peroxide.
Patent GB-1257746-A (GB)
IPC: F01D5/18
Filed: 1970-05-14
Abstract: 1,257,746. Making porous turbine blades. GENERAL MOTORS CORP. 14 May, 1970 [15 Aug., 1969], No. 23464/70. Heading B3A. [Also in Division F1] A laminated porous metal sheet, e.g. the wall of an air cooled turbine blade, is made by photoetching sheets 18, 19, 20 to form pores 16, bosses 22, holes 23 and channels 24 and then diffusion bonding the sheets together. The depth of etching may vary over the sheets 19, 20.
Patent GB-1267001-A (GB)
IPC: B60T15/04
Filed: 1970-01-16
Abstract: 1,267,001. Fluid pressure brakes; valves. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. 19 Nov., 1970 [16 Jan., 1970], No. 2248/70. Headings F2F and F2V. A fluid control valve assembly for a brake system, e.g. for controlling a spring-applied, air pressure-released parking brake has a selflapping valve 2, with a double-ended closure element 3a engaging an inlet seat 5 or an exhaust seat 7, the output being determined by the position of a member 32 urged by a spring 34 into a predetermined position, the spring being inhibited from moving the member only so long as supply pressure is present at the valve. In the "Park" position shown inter-engaged face-cams 37, 38 cause a rod 25 to lift a piston 20 through a spring 22 against the force of fluid pressure in a chamber 26 connected to inlet port 8 by a conduit 28. A piston 11 is caused by a spring 19 to follow and lift the exhaust valve seat 7 clear of the element 3 and put the outlet port 17 into communication with exhaust port 14, thus putting port 17 at atmospheric pressure and allowing the spring actuator to apply the brakes. Failure of pressure at the inlet port 8 allows the spring 34 to move member 32 back to the "Park" position from any other position by release of cams 37, 38 and movement of rod 25.
Patent GB-1289583-A (GB)
IPC: A47C27/06
Filed: 1970-03-06
Abstract: 1289583 Spring upholstery LACE WEB SPRING CO Ltd 19 April 1971 [6 March 1970] 10796/70 Heading A4M A seat or mattress spring assembly includes upper and lower, wire border frames 5, 6 to and between which are secured a plurality of rows of springs, the springs in each row being formed from a single continuous length of wire the helices of the springs running either all clockwise or all anticlockwise when viewed from one side of the frame and the axes of neighbouring springs being equally but oppositely inclined to the vertical. The springs are secured to the frames 5, 6 by clips 7 and to each other by helical wires 8. As shown, some springs of a row may have less turns than others in the row.
Patent GB-1289882-A (GB)
IPC: F15B13/04
Filed: 1970-04-24
Abstract: 1289882 Valves DOWTY TECHNICAL DEVELOPMENTS Ltd 19 April 1971 [24 April 1970] 19694/70 Heading F2V With each of a pair of selector valves 12, 13 in neutral, fluid in supply passage 53 is led direct to exhaust 21 via open-centre passage 57-63, and an auxiliary inlet port 72 connected to the displacement control mechanism of the supply pump is connected to exhaust 21 or, in the present case to exhaust (73), via 67-71 thereby unloading the pump. Movement of either spool to either of its work positions by lever 42, 45 against spring 49 closes the open-centre passage and passage 67-71. The pump is thereby loaded and fluid passes via check valves 56 to inlet passages 54, 55 associated with both spools. One of the spools may be omitted and a monobloc construction may be employed. Instead of using spools, rectangular cross-section or rotary valve members may be used. Where two or more valve members are used, the pump unloader passage need not be controlled by all the members.
Patent GB-1289926-A (GB)
IPC: D21C5/02
Filed: 1971-04-19
Abstract: 1289926 Centrifugal cleaning of slurry BERGSTROM PAPER CO 19 April 1971 [22 Jan 1971] 26778/71 Heading B2P [Also in Division D2] In centrifugal cleaning and de-inking of reclaimed de-fibred paper stock, an additive is introduced into a slurry of the stock, which contains one or more contaminants of approximately the same specific gravity as the fibres, so as to effectively increase the specific gravity of those contaminants or part thereof, whereby they are retained in the outer part of the vortex of the centrifugal cleaner and are discharged with heavy rejects while the fibres migrate to the inner part of the vortex and are discharged as accepts. The contaminants may consist of plastics, or polymeric, adhesive, rubbery and/or asphaltic materials. The additive may be a solid or a liquid and numerous examples are given. The additive functions by adsorption onto, or absorption by, the contaminant particles. The amount of additive used is 5-10 ppm by weight based on total slurry weight. Examples of the cleaning process are given.
Patent GB-1295036-A (GB)
IPC: B01J13/20
Filed: 1970-02-04
Abstract: 1295036 Aerosols containing microcapsules L'OREAL 4 Feb 1970 [4 Feb 1969] 5280/70 Headings C4X and C5D [Also in Divisions B1 B8 D1 and F1] A pressurized dispensing container contains a propellant fluid and at least one encapsulated mixture of a pressurized gas and a liquid, the pressure of the fluid being at least equal to that of the pressurized gas. When the fluid is dispensed, the capsules which have a diameter of from 50 to 1000 Á are also dispensed and burst due to the sudden decrease in pressure outside them. In one embodiment, the pressurized gas is the same as the propellant fluid, in which case one liquid is encapsulated in, for example, low melting point polyethylene and the capsules placed in the pressurized gas, whereupon the gas diffuses into the capsules. In another embodiment, a liquid is encapsulated in a pressurized gas atmosphere, then the capsules are placed in a propellant fluid. In this embodiment, substances which react with one another can be encapsulated separately, then the capsules can be mixed in the propellant fluid. The liquid may be a stain remover as disclosed in Specification 1295037 or may be a hair dye having the following composition: This encapsulated hair dye is mixed with a halogenated hydrocarbon propellant. An oxidizing agent may be added to the propellant, which will mix with the encapsulated hair dye when the capsules burst on being dispensed.
Patent GB-1295311-A (GB)
IPC: B61G3/16
Filed: 1970-02-23
Abstract: 1295311 Automatic service conduit connectors in railway couplings COMPAGNIA ITALIANA WESTINGHOUSE FRENI E SEGNALI 23 Feb 1970 [25 Feb 1969] 8509/70 Heading B7T A rigid jaw railway vehicle automatic coupling has interengageable coupling heads with frontal impact faces, each coupling head having a service conduit connector member, and includes means responsive to the approach to coupling of two such coupling heads which causes movement of each respective connector member relative to its respective coupling head in a direction perpendicular to the frontal impact face of the head so that aperture interengagement of the connector members only occurs after the impact of the two frontal impact faces of the coupling heads. When the two coupling heads approach one another the projections 3, 4 contact the arms 5a, 6a of the sensing levers 5, 6 causing anticlockwise rotation (as viewed in drawings) of the levers, (Fig. 1). As the sensing levers 5, 6 are turned further anticlockwise against the action of springs 21, 22, the arms 13, 14 transmit anticlockwise rotation to the operating levers 15, 16 until the pins 45, 46 reach the end of the slots 47, 48. Further movement of the operating levers 15, 16, and thus of the connector members 7, 8, is prevented by the stop links 49, 50 being locked in position by the toggle links 55, 56. (Fig. 2). On further advance of the coupling heads further anticlockwise rotation of the sensing levers 5, 6 occurs, causing compression of the springs 27, 28 as the operating levers are locked in position, until the rounded free ends of the lever arms 11, 12 abut intermediate lands 51, 52 on the stop links 49, 50, as frontal impact of the coupling heads occurs (Fig. 3). Lateral sliding of the protuberances 36, 35 along the frontal impact faces 63, 64 follows until the two heads are fully interengaged and the connector members are co-axially aligned. This final movement causes more slight anticlockwise rotation of the sensing levers 5, 6 so that the arms 11, 12 rock the stop links 49, 50 anticlockwise about the pins 45, 46, and the pivot pins 57, 58 pass to the other side of a line joining 45, 46 and 53, 54. The links 49, 50 are thus freed and the compressed springs 27, 28 relax to cause anticlockwise rotation of the operating levers, thus joining the connector members together. When the heads are uncoupled all the levers and links return to the position shown in Figure 1, under the influence of the springs. Another embodiment is illustrated in Figs. 5, 6, 7, 8 (not shown). A pneumatic piston and cylinder device may be fitted to each connector member to control the speed at which they approach each other immediately prior to their final interconnection
Patent GB-1306524-A (GB)
Title: Mocroporous sheet materials and the manufacture thereof
IPC: C08J9/28
Filed: 1970-04-28
Abstract: 1306524 Microporous polyurethanes USM CORP 28 April 1970 20309/70 Heading C3R Microporous polyurethane sheet material is prepared by (a) forming an emulsion comprising a continuous phase of the components reactive to form a polyurethane, and a disperse phase which is a liquid immiscible, or substantially immiscible, with the continuous phase, (b) forming a layer of the emulsion, (c) before substantial reaction of the reactive components has taken place providing means on a surface of the layer to prevent loss of the disperse phase from the surfce and (d) after the reactive components have reacted sufficiently for the continuous phase to become stable against collapse removing the liquid disperse phase. The polyurethaneforming reactants are most suitably an isocyanate-containing prepolymer and a chain extending agent such as a diol or diamine. Suitable immiscible liquids are paraffinic hydrocarbon mixtures, n-butyl ether and halogenated hydrocarbons, e.g. 1-chlorodecane. The emulsion is suitably formed into a sheet by spreading on to a support surface. The means to prevent loss of the immiscible liquid may be an impervious cover in contact with the surface, a layer of a liquid having a b.p. of at least 100‹ C. and being substantially non-solvent for and non- reactive with the reactive material and being immiscible in the continuous phase, or a porous layer impregnated with said liquid. The liquid of the non-solvent-liquid layer may be the same as the liquid of the disperse phase. The disperse phase may be removed from the sheet by heating or solvent extraction.
Patent GB-1310219-A (GB)
Title: Data clocking system
IPC: H03K5/00
Filed: 1971-10-05
Abstract: 1310219 Digital transmission; synchronizing INTERNATIONAL BUSINESS MACHINES CORP 5 Oct 1971 46177/71 Heading H4P A synchronizing system comprises a stored table with a look up system from which successive locations are read to provide selection of a plurality of sampling periods within each clocking period. A number of locations are scanned during each clocking period so that such period is extended or reduced, temporarily, until approximate synchronization is attained. The number of locations read is smaller or greater dependent on whether the clocking periods are advanced or retarded with respect to input signals. The basic clock period is divided into 31 sampling periods. When transitions of the sampling periods are slow relative to the incoming signals, e.g. input transitions occur in any of sample periods 1-14 the clock period is increased by one sampling period to 32 by which is maintained until the input signal is approximately synchronized, when it reverts to 31. Conversely if the clocking signal is fast the clock period is shortened to one having 30 sample periods. In practice clock period alteration is delayed until a number, e.g. 3 slow or fast successive clocking signals are detected. The phase of clocking signals relative to input signals alters about 3% per cycle but this may be increased under starting conditions by forcing a number into a sample buffer included in sync. store (2), Fig. 2 (not shown). Input signals may be presented on a plurality of lines which may have differing speeds preferably multiples of each other hence adjustment may be made by the provision of divisors. The sync. store (2) performs also logical operations and generation of differing sampling periods. Such operations can be performed by an associative store of the type disclosed in Specification 1,218,406 using table look up techniques, initiation of operation being based on a comparison of the state of an input signal with its state at a prior time. Fig. 3 (not shown) illustrates a layout for the sync. store words occupying horizontal rows, each row being divided into tables.
Patent GB-1314272-A (GB)
Title: Circuit arrangements for current amplifying devices
IPC: G01R19/00
Filed: 1970-04-07
Abstract: 1314272 Measuring current R L FYFE 19 April 1971 [7 April 1970] 16439/70 Heading G1U [Also in Division H3] A current amplifier for a measuring circuit, comprises four transistors Q1, Q2, Q3, Q4, Fig. 2, the first and fourth, and the second and third having their bases commoned, and the first and second, and the third and fourth having their emitters commoned. In such an arrangement it can be shown that I2 = I1. I3/I4, where I1, I2, I3, I4 are the respective collector currents. Currents I3 and I4 are set by resistors R17, R18, R15 and a zener Z14 stabilized supply, and an unknown current I1 is entered into the collector of the first transistor Q1. The value of the unknown current I1 can then be read from a meter M19. The circuit is said to have good temperature stability and very low zero drift.
Patent GB-1316311-A (GB)
Title: Production of zeolite pellets
IPC: B01J2/22
Filed: 1970-05-19
Abstract: 1316311 Zeolite pellets BRITISH PETROLEUM CO Ltd 19 April 1971 [19 May 1970] 24097/70 Heading C1A [Also in Division C5] Zeolite pellets are produced by compressing a zeolite powder into pellets, breaking down said pellets to give a material of greater bulk density than the original powder, reforming this material into pellets which are broken down at least once more to obtain a final material of increased bulk density which is formed into pellets of desired size and shape. In an example, synthetic Na mordenite (bulk density 0À52 g./ml. and size 100 mÁ) is pelleted to discs (¢ inch diameter by # inch thick). These discs are broken down to material which passes a 12 mesh B.S.S. sieve (bulk density 0À73 g./ml.), repelleted to discs (¢ inch diameter by # inch), and broken down again. This material having bulk density 0À81 g./ml. is pelleted in # inch by # inch cylinders, the product pellets having bulk density 0À83 g./ml. Preferred zeolites are synthetic mordenite and zeolite L. The preliminary pelleting preferably forms pellets of 5/16-1 inch diameter and 5/16-1 inch depth and final pellets preferably have 1/16-“ inch diameter and 1/16-“ inch depth. The zeolite pellets may have catalytic metals incorporated if desired.
Patent GB-1316491-A (GB)
Title: Projectors
IPC: G03B23/12
Filed: 1970-05-14
Abstract: 1316491 Optical projection apparatus, film movement E MARTINEZ and R H REIBEL 14 May 1970 23378/70 Headings G2A and G2E For use in a strip film projection a film advance mechanism includes a claw arm 69 (see Fig.7) provided with a guide follower 71 which cooperates with guide 60 whose elongate projecting surface urges the claw through aperture 59 in film gate so as to engage a film sprocket hole 51 and advance the film. When the film advance stroke is completed the resilience of the arm 69 permits it to spring clear of the end of the guide 60 and the claw arm may then return to the position shown in Fig. 7 without reverse movement of the film. As shown in Fig. 6 the guide comprises two spaced surfaces 60, the claw arm 69 and its two followers 71 appearing T-shaped when viewed from the end thereof. Operation of the film advance is achieved by manually depressing ears 66 (see Fig. 6). Fig.3 shows the arrangement of the components of the projector, cooling air moving out through the top of the projector as a result of its being warmed by the baffles 25 adjacent the light.