baber/WOPTO huggingface dataset:
Patent GB-1293530-A (GB)
Title: Continuous production of expandable styrene polymer
IPC: C08J9/16
Filed: 1970-03-25
Abstract: 1293530 Expandable styrene polymers BADISCHE ANILIN- & SODA-FABRIK AG 25 March 1970 [29 March 1969] 14479/70 Heading C3C  An expandable styrene polymer is continuously produced by incorporating from 15 to 200% by weight (based on the weight of polymer) of an expanding agent which is gaseous or liquid at S.T.P. into a melt of a styrene polymer at a temperature of from 30 to 180 C. above the glass transition temperature of the polymer and at a pressure above the vapour pressure of the expanding agent in the mixture, then lowering the pressure to a pressure lower than the vapour pressure of the expanding agent in the mixture and evaporating from the mixture a part of the expanding agent such that from 3 to 15% by weight of expanding agent (based on the weight of polymer) remains in the mixture, the mixture being thus cooled to a lower temperature which is below the boiling point of the expanding agent in the mixture and is in the range of from 90 to 240 C., then raising the pressure above the vapour pressure of the expanding agent in the mixture and then depressuring the mixture and further cooling it to a temperature which is from 20 above to 60 C. lower than the glass transition temperature of the polymer containing expanding agent. In the examples expandable polymer produced consisted of granules of polystyrene containing n-pentane, with optionally aq. ammonium sulphate. In the drawing, polymer melt from 1 is fed via 2 to mixer 3 to which expanding agent from 4 is also fed via 5 and 6, the mixture is flashed via 7 to separator 8 from which evaporated expanding agent is condensed in 10; the cooled mixture is discharged from 8 by a screw 11 and through a die (not shown) into a cooling bath 12 and granulator 13. The granules may be pre-expanded and then expanded and fused in moulds.
Patent GB-202719-A (GB)
Title: Improvements in or relating to the manufacture of pneumatic tyre-covers or casings and in machines therefor
IPC: B29D30/38
Filed: 1922-05-23
Abstract: 202,719. Gautier, C. M. May 23, 1922. Tyre covers, making.-In machines of the type in which a strip of canvas or cord fabric is formed on a drum into a sleeve or ring for subsequent treatment index lines are marked on the fabric to serve as indicating means for use in setting-up the fabric band or ring without distortion in any subsequent operation. A drum 5 is fed with tyre fabric 8 passing from a stock-roll 7 under a roller 10, the backing strip 9 winding on to a roller 11. The roller 10 is driven by contact with the fabric on the drum 5 and drives the roller 11, the stock-roll 7 being driven by the pull of the backing strip. The rollers 10, 11 are capable of vertical sliding movement in the frame 6 and the pressure of the roller 10 on the drum 5 may be varied. An arm 13 pivoted to the frame carries a disc 15 which contacts with the fabric 8 on the drum and traces a circumferential line round the middle of the fabric band. The transverse marking device comprises a disc 17 carried by an arm 18 mounted to swing about a pivot 19 on a member 20 which is slidable in a block 22 on the frame. A spring-controlled lever 23 pivoted to the frame is adapted to engage recesses 25 in the drum edges, thus arresting its rotation at regular intervals to enable the disc 17 to be traversed across the drum face.
Patent GB-145405-A (GB)
Abstract: 145,405. Gousset, G. B. June 20, 1919, [Convention date]. Rotary interrupters for use on ignition magnetos have the movable contact c carried by a. spring having one or more blades d, the spring being deflected by a second spring c on which the cam bowl i is mounted. A gap k is left between the spring d and the spring c, so that the inertia of the latter with its attached bowl is overcome, when the bowl hits the deflecting-cam, before the spring d commences to move. The springs c, d are carried on symmetrical blocks, the support g for the fixed contact being central. The interrupter may be used for either direction of running.
Patent GB-1431372-A (GB)
Title: Control rod operating mechanisms
IPC: G21C7/16
Filed: 1972-03-28
Abstract: 1431372 Emergency control of nuclear reactors STRACHAN & HENSHAW Ltd 26 March 1973 [28 March 1972] 14548/72 Heading G6C A nuclear reactor control mechanism, e.g. for rapidly inserting an emergency rod 46, comprises a reservoir 16 for pressure fluid and valve means for controlling the flow of compressible fluid from the reservoir into a tubular guide 20, the valve means being arranged to be held in a position to prevent flow but being capable of assuming a position in which flow can occur to propel the rod into the reactor. The guide 20 may terminate short of the bottom wall of the reservoir 16, but, alternatively, as shown, it continues through such wall and has one or more bores 22 allowing permanent communication of fluid in reservoir 16 with the valve means. The latter comprises a closure member 24 sealing the lower end of the guide 20, bores 28 in the member 24, a nozzle 30 to receive fluid from reservoir 16 via bores 22, 28 and a valve member 32 which, in the position shown, closes the nozzle 30. The valve member 32 is urged upwards by pressure of fluid in the cylinder of a ram 42 to and from which fluid is supplied in dependence upon the position of a control valve. When it is required to insert rod 46, the control valve is actuated to relieve the ram 42. Thereupon the valve member 32 drops (under its own weight and the effect of reactor operating pressure) to admit fluid from reservoir 16 into the guide 20 to propel the rod 46.
Patent GB-1378306-A (GB)
Title: Combustion apparatus
IPC: F23D11/00
Filed: 1972-03-29
Abstract: 1378306 Fluid fuel burners KOEHRING CO 29 March 1972 [29 March 1971] 14650/72 Heading F4T Combustion apparatus comprises a generally cylindrical burner tube 52 having at one end a closure 60 mounting a fuel nozzle 12 above which is located a frusto-conical flame retention head 86, an auxiliary air passage 18 opening into the burner tube for directing air between the closure and the flame retention head and an air flow distributer 98 being located at the burner end of the air passage and having a pair of deflector portions 108, 110 directed outwardly to direct air in opposite circumferential directions about the axis of the tube. The nozzle 12 includes a chamber 62 communicating with an oil inlet 14 and a chamber 64 communicating with a primary air inlet 16 and with a further air chamber 76 through inclined passageways 78 which produce a swirling air flow. Oil is aspirated through passage 84. The flame retention head has air openings 114 and slots 116, the material adjacent slot edge 120 being bent outwardly to provide inclined vanes 124 which swirl the air. The distributer portions 108, 110 are provided with a plurality of holes for the passage of air. The primary air inlet 16 receives air from a compressor 24 and the passage 18 receives air from a blower unit 28. Fuel oil is supplied to passage 14 by a pump 32 which is controlled by a regulator 38 which shuts off oil flow when primary air supply is interrupted. An igniter 44 for the burner comprises a pair of electrodes which project into the burner tube and between which an arc is struck to start a burning cycle. A detector 48, e.g. a cadmium cell unit acts to shut down the fuel supply if the flame goes out. The apparatus forms part of a water chiller operating on an absorption cycle, the burner assembly being supported by a heat receiver 5. A motor 20 drives the compressor 24 and blower 28. The apparatus is stated to be suitable for burning gaseous fuels.
Patent GB-1379695-A (GB)
Title: Pressure and vacuum monitoring apparatus
IPC: G01M3/36
Filed: 1973-03-27
Abstract: 1379695 Selective signalling BENTHOS Inc 27 March 1973 [9 June 1972] 14720/73 Heading G4H [Also in Division H4] In a system for monitoring the pressure (above or below atmospheric) within a sealed container, by causing a resilient wall portion of the container to vibrate and analysing signals representative of the vibration frequency, the vibration is induced by a single pulse of force and the signals are gated to reject spurious signal portions generated while said pulse is present. In the Fig. 5 embodiment a coil in test head 2 is pulsed when a can 60 on a conveyer passes below it. The resulting eddy-current-induced vibrations of the can end are sensed by a microphone (in head 2) whose output is fed via a limiting amplifier 80, a filter 82 tuned to the frequency band characteristic of a "good" can, and a detector 84 to an integrator 86. The signals integrated are those within a time-gate established by units 108, 110. If the can is good, the integrator output is sufficient to trip bistable 92 and so light indicator lamp 104: if not a can-rejector device 70 is actuated. A second frequency-analysis channel is used in the Fig. 8 embodiment. The microphone output, amplified at 136 and gated at 144, is fed to channels including low-Q filters 146, 148 tuned to frequency bands characteristic of "good" and "bad" cans respectively. The filter outputs are rectified at 150, 160 then integrated at 154, 164. A sum signal is formed at 172 from the integrator outputs and the difference is formed at 174. The difference signal is an analogue of the frequency of the microphone signal. A quantized indication of this frequency is provided by the Fig. 9 circuit in which the difference signal is applied to first inputs of comparators 236-244 receiving as second inputs respective reference voltages from a resistive divider 228-234 energized by the above-mentioned sum signal. When a reference voltage is exceeded by the difference signal the associated comparator switches a respective latch circuit 256-264 for energizing a respective light-emitting diode 1326-132f. Diode 132a is energized if no reference voltage is exceeded. Diodes 295 ensure that only one of diodes 132a-132f is energized at a time. Switches 130a-130f linked to the can-rejector device provide for rejection of cans with vibration frequencies different from selectable values. In the Fig. 5 or 8 embodiment the integrator 86 output or amplifier 172 input is compensated to allow for changes in the can vibration frequency with temperature. A third embodiment (Fig. 11, not shown) includes a hand-held transducer unit and provides an audible indication of the filtered and gated microphone output.
Patent GB-809126-A (GB)
Title: Improvements in or relating to coupling electrical elements
IPC: H03H1/00
Filed: 1955-05-23
Abstract: 809,126. Interference filters. SIEMENS & HALSKE A.G. May 23, 1955 [May 29, 1954], No. 14745/55. Class 40 (8). A low-pass filter for feeding low-frequency current through a screening partition, comprises two condensers joined by a coupling conductor which is surrounded by a body of high permeability (e.g. ferrite). The loss factor of the body, i.e. the ratio of the imaginary to the rear component of the complex permeability exceeds unity at the lowest working frequency. In the first construction (Fig. 1), the two condensers comprise dielectric discs a, b mounted at either end of a metallic tube c which is located in an opening in the screening e of a high-frequency apparatus. The outer electrodes of the condensers a<SP>1</SP>, b<SP>1</SP> are connected to the housing c whilst the inner electrodes are connected to the coupling conductor d. A body p of ferrite surrounds the conductor d. In the second construction (Fig. 2), the housing consists of a tubular dielectric body f having an outer electrode g soldered to the screening n and.two inner electrodes h, i connected to metallic end closure members k, l which are also connected to the coupling conductor m. As. in the previous construction, the conductor m is surrounded by a body o of high permeability material. The feed-through conductor m is connected to the end members.
Patent GB-665697-A (GB)
Title: Attachments for fittings within flexible containers
Inventor: LOCKE WALTER FREDERICK
IPC: B64D37/06
Filed: 1949-06-01
Abstract: 665,697. Tanks. FIREPROOF TANKS, Ltd: May 31, 1950 [June 1, 1949], No. 14749/49. Class 69 (i). A flexible container for liquids is furnished with one or more pockets or sleeves secured to the internal wall for accommodating one or more internal fitments and having spaced orifices arranged to ensure that the liquid level within the sleeve is the same as that in the remainder of the container. In the form shown, the fitment consists of the tank unit 2 of a liquid-level gauge and is accommodated in a pocket comprising a strip 7 of the same material as the tank, e.g. plasticised polyvinyl formal sheet, cemented to the wall of the tank and perforated as at 9. In another form the pocket comprises a perforated flexible tube cemented or fused to the tank wall. Specification 660,014 is referred to.
Patent GB-593172-A (GB)
Title: Improvements relating to mouldable compositions
IPC: C04B28/00
Filed: 1945-06-11
Abstract: A stable dry composition capable of setting to a hard mass on the addition of water comprises a solid inert material, a solid inorganic basic material and a solid inorganic acid salt, and may also comprise a water soluble fluoride, acid fluoride or silico-fluoride to control the setting time of the composition. Preferred proportions are 40-80 per cent. inert material, 10-25 per cent. basic material, 10-35 per cent. acid salt and 0-5 per cent. of the fluorine compound.  The inert material may be silica, zircon, zircona, fused alumina, kyanite or other aluminosilicate materials, rutile, feldspar, granite, chromite or ilmenite.  The inorganic acid salts may be acid phosphates, sulphates or arsenates of the alkali metals or ammonium, particularly the monobasic phosphates.  The basic material may be dead-burned magnesite, dolomite or aluminates of the alkali and alkaline earth metals, which should contain about 1-3 per cent. of iron oxide and silica.  The normal acis or silico-fluorides of sodium and ammonium may be used.  In use, 5-6 vols. of the previously mixed dry composition is added to 1 vol. of water, quickly and thoroughly stirred, and poured into a mould.  Denser casts may be made by the addition of a few drops of a wetting agent such as a sulphonated oil plus a few drops of a defrothing agent such as octyl alcohol. Specification 578,177 is referred to.
Patent GB-874190-A (GB)
Title: Improvements in or relating to data processing systems
Inventor: TURNER FREDERICK JAMES LESLIE
IPC: H04L13/02
Filed: 1959-04-30
Abstract: 874,190. Selective punching-machines. CREED & CO. Ltd. April 29, 1960 [April 30, 1959], No. 14772/59. Class 31 (2). Equipment for recording orders received from customers comprises a first array of switches at a control position on which the identity of a customer placing an order is recorded, a second array of switches at said control position on which is recorded the details of one or more transactions which constitute a customer's order, a coding circuit to which is applied data from one of said arrays of switches, which coding circuit converts the data applied thereto into a code form suitable for recording on a recording medium, recording means to which coded data is applied from said coding circuit for recording in a recording medium, and sequence control means arranged to cause the data relating to an order, which data includes the customer's identity and details of the transaction or transactions which constitute that customer's order, to be recorded in said recording medium. The data may be recorded on a magnetic tape or by perforating a paper tape. A console, Fig. 1, having within it a control position for an operating clerk comprises a first array of push-button switches arranged in panels such as 2 and from which the identity of a customer placing an order may be recorded, each switch relating to a customer, and a second array of push-button switches arranged on a keyboard 3 and from which may be recorded the details, such as the nature and quantity of product ordered, constituting a transaction of the order. The keyboard also has a transaction bar and an order bar. In the circuit, Fig. 2, the console is indicated at 21 and a telephone set for receiving orders at 22. When the clerk depresses the transaction bar on the keyboard 23, the information which has been set up is transferred to a relay store 24. The connections between the keyboard and the relay store include a programme board which corresponds functionally to the so-called cross-connecting frame used in telephone switching. As soon as the store relays have operated, the keyboard switches are released so that the clerk can set up a further transaction. The data are recorded on a paper tape by a perforator 25 which receives its input from a rectifier matrix 26. The sequence of recording is controlled by a master uniselector 27 and a number of subuniselectors 28 to 31. The customer's identity is transferred direct to the matrix 26 i.e. not to the relay store. The connections between the contacts of the push-button switches and the matrix 26 also include a programme board. Such a programme board may also be included between the relay store and the matrix. Alarms are operated on depression of the transaction bar should insufficient information be recorded or should an incorrect combination of switches be operated. The perforated tape is fed continuously to a tape reader which reads the orders in the tape for automatic processing and production of delivering and invoicing documents.
Patent GB-1035181-A (GB)
Title: Improvements in or relating to articles of hose and methods and means for making them
Inventor: MANGER CHARLES FREDERICK
IPC: D04B9/54
Filed: 1961-04-24
Abstract: 1,035,181. Knitting. BENTLEY ENGINEERING CO. Ltd. July 24, 1962 [April 24, 1961], No. 14802/61. Headings D1C and D1K. An anti-ravel welt for a hose comprises an initial course 17 as for 1 x 1 rib but with held long loops 19 in the rib wales. In the next course 20 the rib needles are brought to tucking height and receive yarn to form tuck loops 21. These loops remain on the needles with the held loops 19 whilst three further courses 22 are knitted, the yarn being missed by the rib needles to form floats 22a. A transfer of the needles to the opposite needle bed than takes place and a final course of 1 x 1 rib 23 is knitted with both sets of needles taking the yarn. Further courses of 1 x 1 rib can then follow without any further transference of needles. The knitting is preferably carried out on a circular machine of the opposed co-axial needle cylinder type with needle set out as for 1 x 1 rib and equipped with needle transfer mechanism.
Patent GB-354791-A (GB)
Title: Improvements in or relating to the treatment of tea and similar leaf
IPC: A23F3/06
Filed: 1930-05-14
Abstract: 354,791. Cooling and drying tea leaf. MAIN, J. A., Clydesdale Ironworks, Possilpark, Glasgow. May 14, 1930, No. 14827. [Classes 29 and 34 (ii).] The fresh leaf is treated before withering by allowing it to fall through an upward current of air in a tube 7. The air is supplied by pipes 8 and may be treated to dry and/or cool the leaf.
Patent GB-1094122-A (GB)
Title: Improvements in or relating to fastening devices
Inventor: MEWSE CHARLES
IPC: B25B31/00
Filed: 1964-04-10
Abstract: 1,094,122. Stud and socket fastening. AVDEL Ltd. April 2, 1965 [April 10, 1964], No. 14838/64. Heading E2B. A fastening device for temporarily clamping operatured members in superposed relationship comprises two connected limbs 11 with end projections 11a which are inserted into a hole in two plates 21 and are expanded by a spreader member 16 connected to a sleeve 13 slidable over the limbs, the lower end of the sleeve bearing resiliently on the upper plate 21 and being held by a wedging roller 15 movable downwardly in a guide slot 13a in a lateral extension of the sleeve 13 to bear against a limb. The upper edge of the spreader member 16 engages in notches in the sleeve and acts as an abutment for a spacer member 12 between the upper ends of the limbs. One end of a clip 20, surrounding a cup 19 on the lower end of the sleeve and apertured for the limbs 11, projects into a slot in the sleeve to limit the extension of a spring 18 between the bottom of the cap and a washer on the lower end of the sleeve.
Patent GB-203027-A (GB)
Title: Improvements in and connected with the card cylinders or barrels of jacquard machines
IPC: D03C3/24
Filed: 1922-05-26
Abstract: 203,027. Hutchinson, R. May 26, 1922. Jacquards.-The card cylinders or barrels are provided with rectangular plates or collars 5 fitted over the lantern wheels 3 and provided with integral or replaceable pins or teeth 7, which project to an equal extent to the knobs 8 of the lantern wheels. The cylinder catch or arm 4 pivoted to the frame 9 is provided with rack teeth 11 to engage the teeth 7 and knobs 8 and has an inclined slot 12 to receive a pin 13 on a slide 14, whereby the teeth 11 may be moved into or out of engagement. The pin 13 is operated by means of arms 20, 22 of a bracket 21. Two or more cylinders geared together may be used and the plates 5 may be screwed to the cylinders.
Patent GB-207564-A (GB)
Title: Improvements in or relating to heels for boots and shoes
IPC: A43B21/34
Filed: 1922-05-26
Abstract: 207,564. Ward, F., and Curtis, A. W. May 26, 1922. Heels.-A Louis or like heel comprises a thin metal shell a with a filling b of wood, wood pulp, leather boards &c., the upper edges of the shell and filling being flush to bed against the heel seat of the shoe. to which the heel is secured by inside attaching nails. The heel is fitted with a tread e of leather or rubber.
Patent GB-514917-A (GB)
Title: Improvements in or relating to fluid pressure braking systems for vehicles
IPC: B60T13/24
Filed: 1938-05-18
Abstract: 514,917. Fluid-pressure brakes. AUTOMOTIVE PRODUCTS CO., Ltd., and GATES, G. R. G. May 18, 1938, No. 14893. [Class 103 (i)] In a compressed air or vacuum brake for vehicles having hydraulic transmission the pressure produced in the hydraulic master cylinder is applied to a piston 55 acting to close the inlet valve, and thus to limit the brake application to a degree dependent on the movement of the foot pedal, and also to give a reaction on the driver's foot. The foot pedal acts on the inlet valve by means of a spring tappet 48 to allow the valve to be reclosed by the piston 55. The exhaust valve is also operated by means of a spring tappet. The inlet valve is provided with a sleeve 42 having tapered grooves which provide a passage of progressively increasing area past the valve as the valve is opened.
Patent GB-841132-A (GB)
IPC: H01C3/10
Filed: 1955-05-24
Abstract: 841,132. Grid resistors: electric couplings. SATCHWELL, L. May 23,1956 [May 24, 1955], No. 14951/55. Classes 37 and 38(1). A resistance comprises one or more plates cut to zig-zag form and folded transversely to U- shape about midway of the length, the ends being clamped between insulating supports so as to form a rigid triangular structure, free to expand on heating. Fig. 6 shows a parallelogram of sheet metal having staggered slots to provide a zig-zag current path bent into a U-shaped channel, Fig. 8 with flanged edges 12a and offset ends on opposite sides to facilitate making end connections. Fig. 4 shows a plurality of such elements arranged symmetrically about an insulating support comprising a number of insulating blocks 10b having on opposite faces complementary channels and projections as at 10c, 10d between which the flanged edges 12a are gripped ; distance pieces 16 (Fig. 3) being inserted in place of the offset ends of each element. The complete assembly is clamped between two plates 20, 21 by threaded rods 11, which may be covered with an insulant, passing through a hole in each block. The interstices between the blocks may be filled with a heat resistant insulating cement. Couplings. Adjacent elements on opposite sides of the support are connected in series by U- shaped plates 24, Figs. 3, 5, attached by spot welding. The groups of elements so formed are connected in series by plates 23, Fig. 4, bent into U-shape. A pair of terminals 25 are attached to the assembly by welding between the L-shaped plates 22 (attached to the end elements) and the distance pieces 16.