baber/WOPTO huggingface dataset:
Patent GB-1148806-A (GB)
Title: Methods and apparatus for maintaining a liquid head in a centrifugal strainer drum
IPC: B04B3/00
Filed: 1966-09-14
Abstract: 1,148,806. Centrifugal strainer. BAKER PERKINS Inc. 14 Sept., 1966 [15 Sept., 1965], No. 41001/66. Heading BID. A centrifugal strainer having its rotary perforate drum 15 enclosed by a rotary housing 13, forming a filtrate chamber 16, is provided with valves 17 whereby filtrate discharge from chamber 16 is controlled so that a uniform filter cake is produced in drum 15 when the machine is operated in a batch process. The machine comprises a slurry delivery line 56 with a valve 60, a fixed housing with a removable cover 7, a drive motor (not shown) and a solids discharge shoot 54 incorporating scraper knives (not detailed). In Fig. 1, radially movable valve members 22 are urged outwards by centrifugal force to permit filtrate discharge through ports 24, but have heads 25 exposed to liquid pressure urging them inwards. This pressure is supplied by radial tubes 45 which dip into an annular trough 39 (Fig. 2, not shown) and receive water or filtrate therefrom by virtue of their rotation. The liquid is able to bleed past heads 25, and the radial positions of valve members 22, and thus the filtrate discharge rate, are controlled by varying the liquid level in trough 39 by valves (43, 52). Trough 39 is fixed but in a modification (Fig. 3, not shown) a similar trough (39a) rotates with the drum and the tubes (45a) lead directly from the trough floor. In Fig. 4 (not shown) similar valves 17 are controlled more directly, by hydraulic or pneumatic fluids supplied through a rotary coupling and conduits (65, 66). In Fig. 5 (not shown) valves comprise rods (73), movable inwards to open outlets (72) from chamber 16, and are operated by a solenoid mounted in drum shaft 9 and connected to power via slip rings (90, 91). In Fig. 6 (not shown) a similar valve arrangement is operated by a hand lever.
Patent GB-898685-A (GB)
Title: Vitamin b halides and process for the preparation thereof
Filed: 1958-12-22
Abstract: The invention comprises (a) Vitamin B1 bromide hydrochloride and iodide hydrochloride; (b) the preparation of Vitamin B1 chloride, bromide or iodide by reacting Vitamin B1 chloride hydrochloride, chloride hydrobromide, bromide hydrobromide or bromide hydrochloride, with at least 2 molecular proportions of an alkali metal hydroxide, carbonate or bicarbonate in an aqueous medium, adding an alkali metal chloride (except when the starting material contains bromine), bromide or iodide to the resulting solution, and adjusting the pH thereof to approximately 6 with an alkali metal hyposulphite or thiosulphate or a weak organic acid; and (c) the preparation of a Vitamin B1 halide hydrohalide in which the two halogens are different (neither of them being fluorine) by reacting Vitamin B1 chloride, bromide (or its hydrate) or iodide (or its hydrate) with the appropriate hydrogen halide.
Patent GB-1292535-A (GB)
Title: Conductor for a portable electrical device
Inventor: PASSAFIUME ANTHONY PETER
IPC: H01B7/06
Filed: 1970-08-27
Abstract: 1292535 Two-part couplings A P PASSAFIUME 27 Aug 1970 41390/70 Heading H2E An assembly for connecting a portable television set to a wall socket comprises an extensible helical insulated lead wire with a socket at one end for connection to pin terminals on the set, a plug at the other end consisting of a body portion with a constricted neck and a "keeper" 56 for retaining the plug in engagement with the wall socket comprising a flexible trunk portion 58 with legs 64, 66 for gripping the plug neck and a pair of hook arms 78, 80 insertable between the limbs of horizontal H- shaped member 94 screwed to the socket outlet. As shown, the trunk portion 58 also has a slotted tongue 70 fitting around the lead wire. The socket end of the lead wire may be connected to the set via an adapter.
Patent GB-1205265-A (GB)
Title: Inserts having internal drive grooves
Inventor: ROSAN JOSE
IPC: F16B37/12
Filed: 1967-09-11
Abstract: 1,205,265. Broaching. J. ROSAN. 11 Sept., 1967, No. 41425/67. Heading B3L. [Also in Division F2] In the making of an insert for installation in a bore in a workpiece and comprising an internally and externally threaded hollow cylindrical body having at least one longitudinal drive groove of substantially square or rectangular cross-section extending across a plurality of turns of the internal thread and engageable by a tool for driving the insert into the workpiece, the drive groove or grooves is or are formed by a broaching tool having a cutting tooth or cutting teeth of the desired configuration, the leading end of the tool not being provided with a tooth or teeth but serving to guide the tool into the insert.
Patent GB-1346523-A (GB)
Title: Pipeline leak detector and method
IPC: G01M3/00
Filed: 1972-09-07
Abstract: 1346523 Acoustic detection of pipe-line leaks TEXACO DEVELOPMENT CORP 7 Sept 1972 [24 Sept 1971] 41506/72 Heading H4D Pipe-line leaks are located by apparatus which is moved through the pipe-line by the fluid flow and which records detected acoustic energy, the recording speed being low so long as the energy is below a threshold amplitude, and increased whenever the threshold is exceeded. The distance travelled by the apparatus preferably is recorded also. The dual speed recording makes economical use of a limited length of recording medium. In the Fig. 1 embodiment the system shown is housed in a vehicle made up of four articulated sections which can negotiate pipe-line bends. Hydrophone 28 is inside a conical shield (opening towards the front of the vehicle) which acts as an acoustic baffle. The hydrophone output is filtered at 52, e.g. to pass frequencies in the band 20-60 kHz, rectified at 53, then fed to level detectors 56, 57, 58 with different respective threshold values. Print heads 67, 68, 69 of a digital printer 17 are set, in response to respective output signals from the level detectors, to a common print symbol. Three print heads 70 are set to represent (in tens of feet) the distance travelled, as measured by an odometer 43 engaging the pipe-line wall. All the print heads are actuated simultaneously to effect printing each time a clock pulse is received from clock 47. The clock pulse rate is controlled by the output signal from the level detector 56 having the lowest threshold value. The rate is normally one pulse per 200 seconds, but rises to one pulse per 2 seconds whenever the lowest threshold is exceeded. Whenever the input to detectors 56, 57, 58 falls back below the respective thresholds the print heads 67, 68, 69 are set to respective digits indicating the cumulative number of occasions the respective threshold has been exceeded. Circuit details of the Fig. 1 system are given (Figs. 4 to 8, not shown).
Patent GB-1013090-A (GB)
Title: Improvements in or relating to travelling-wave tubes
IPC: H01J23/27
Filed: 1964-10-14
Abstract: 1,013,090. Travelling wave tubes. SIEMENS & HALSKE A.G. Oct. 14, 1964 [Oct. 15, 1963], No. 41842/64. Addition to 958,923. Heading H1D.  A travelling-wave tube has a helix-derived delay line 2 supported within a hollow conductor by metallic supports 5, the structure being formed of a plurality of stampings, each stamping taking the form of two parallel longitudinal spars 3 joined by a series of transverse crossmembers each of which meets one of the spars at a location displaced longitudinally with respect to the location at which it meets the other spar, wherein the cross-members are shaped to form part of a convolution of the helix and parts of two supports, one of which supports is at each end of the part of a convolution. As shown, six stampings are assembled by bending round a mandrel to form a helix-derived delay line, the spars of each stamping being disposed at 60 degrees to each other, and the assembly is supported within six equally spaced slots formed on the inner surface of a hollow conductor, Fig. 3 (not shown), the depth of the slots being equal to the width of the spars, and the width of the slots being equal to twice the thickness of the stampings. The stampings are preferably soldered into the slots. Alternatively, the hollow conductor is formed from a series of segments interposed between spars of the stampings.
Patent GB-1150857-A (GB)
Title: Tungsten Oxide Cathodic Reduction Catalysts
IPC: H01M4/90
Filed: 1967-09-15
Abstract: 1,150,857. Fuel cell cathode containing a tungsten oxide. ESSO RESEARCH & ENG. CO. 15 Sept., 1967 [30 Dec., 1966], No. 42101/67. Heading H1B. An electrochemical cell i.e. a fuel cell or an electrolytic cell has, as a cathodic reduction catalyst, an oxide of tungsten of formula WO x  where x is >2 and <3. The cathode may be constructed of tungsten oxide compressed on to a metal screen with or without the use of a binder or waterproofing agent e.g. polytetrafluorethylene. An example describes the use of WO 2À7 ,on Ta in a half cell using 30% H 2 SO 4  at 86 C. Hydrogen potentials and current densities are reported in oxygen and nitrogen.
Patent GB-1155091-A (GB)
Title: Combined Bell-push and Fire-alarm
Inventor: ROBSON FRANCIS LAMBERT
IPC: G08B17/06
Filed: 1965-10-05
Abstract: 1,155,091. Thermal switches; push-button retractive switches. F. L. ROBSON. 4 Jan., 1967 [5 Oct., 1965], No. 42126/65. Heading H1N. A bell-push 2, Fig. 1, and fire-alarm thermally actuated switch 3 are incorporated in a single casing 1 and electrically connected in parallel. The arrangement permits a unit normally used for room service in a hotel or hospital to operate also as a heat sensitive fire-alarm switch. The thermal switch comprises a bimetallic strip 11 carrying a movable contact engageable with an adjustably fixed contact 12. In a modification, the thermal switch comprises a contact mounted on the pointer of a thermometer dial. Alternatively, the dial may carry a small magnet to operate reed contacts in an alarm circuit.
Patent GB-424866-A (GB)
Abstract: 424,866. Ticket-delivering apparatus. LANDIS & GYR AKT.-GES., 1, Hofstrasse, Zug, Switzerland. June 18, 1934, No. 17967. Convention date, June 23,1933. [Class 106 (iii)] In apparatus for delivering a selected number of stamps, tickets, or vouchers in strip form, the magazine 31 containing the reserve of vouchers together with the drum 32 for guiding the vouchers and the cutting-off device 38, 39 is detachable from the casing as a single unit on a slide 30 movable in a guideway. The required number of vouchers is selected in known manner by inserting a finger through an endless chain 5 at a selected point over a scale on a plate 11, and pressing down the plate 11 so as to operate a lever 15 and cause a roller 17 to move a bell-crank lever 19, 20, thereby disengaging a projection 21 from a recess 33 and releasing the voucher drum 32. At the same time, the movable knife 39 is lifted by a connecting-rod 40 having a recess 41 engaged by the arm 19. The chain 5 is now drawn forward and drives the voucher drum through gearing until the selecting finger strikes the releasing lever 23, the pawl 24 of which releases a projection 22 on the arm 19, whereupon the projection 21 again moves into a recess 33 of the detent wheel 34, and the movable knife 39 operates to cut-off the selected number of vouchers. On removing the magazine 31, an abutment 25 releases a lever 35 so that its bolt 36 engages a recess 33 and locks the voucher drum.
Patent GB-1523457-A (GB)
Title: Hollow extruded member for use in door or window frame construction
IPC: E06B1/28
Filed: 1975-10-16
Abstract: 1523457 Hollow elongate memhers for door and window frames and glazing DYNAMIT NOBEL AG 16 Oct 1975 [2 Nov 1974 (2)] 42577/75 Headings E1J and E1R Elongate, hollow frame members of thermoplastics material for doors and windows having a Z-, T- or L-shaped cross-section 1. 2, 3 respectively comprise a main portion 20, 40, 60 and separate subsidiary portions 10, 25, (30), 50: a J-shaped rib 17, 37, 57 is formed on the wall of the main portion and serves to engage a glazing strip 7 or a sealing strip 65. Glazing strips 7 have a resilient flanged rib 79 which snappingly engages the down-turned end 14 of the rib 17 thereby holding the sealing strips 2 and the glazing panel 4. Main frames formed from the members may be fixed to the walls using the grooves 49. Wing frames may be formed to co-operate with the main frames.
Patent GB-1276101-A (GB)
Title: Improvements in or relating to the manufacture of electric heating panels
IPC: F24D13/02
Filed: 1968-09-06
Abstract: 1276101 Moulding electric heating panels CAPE ASBESTOS INSULATIONS (PTY) Ltd 26 Aug 1969 [6 Sept 1968] 42635/68 Heading B5A [Also in Division H5] A heating panel is manufactured by locating a heating element in a mould, passing a slurry of asbestos and binder into the mould, and withdrawing excess liquid through the base of the mould to leave an asbestos-binder mat in which the heating element is encased. The mould apparatus comprises two moulds 11, only one being shown, adapted for alternate operation. In one embodiment of the invention a nickel chrome multistrand or single strand wire is wound about pins 18 projecting from longitudinal side members of a frame 16 to form a zigzag heating element. The frame 16 may be releasably secured to the mould 11 and as described is pivoted thereto to enable it to be swung between the vertical and horizontal. With the frame vertical, a fixed quantity of slurry which consists of amosite and portland cement in water or asbestos in a synthetic resinous material, is introduced into the mould which has side walls 12 and a perforated base 13. Air is then evacuated from sump 15 causing excess liquid to be drawn off through the base 13 of the mould. The frame 16 is then swung to the horizontal position to place the element just above the asbestos-binder mat so formed. A second measured charge of the slurry is then fed to the mould to embed the heating element and the excess liquid is once more draw off through the base of the mould. One side of the frame 16 which is pivoted relative to the remainder is then relatively pivoted to release the tension on the heating element, and the frame is then swung to the vertical leaving the element embedded. The mat so formed is then stripped from the mould by supplying air to the perforated base 13 and the base is then raised by an hydraulic lift 14 to permit easy handling of the mat. The mat is then placed between galvanized plates in turn sandwiched between two composite boards and inserted in a press to remove the bulk of the moisture. The mat is stored for four days between the plates for partial curing, or is stripped from the plates, trimmed and stored for ten days in humid conditions to complete curing and is finally oven dried to form a rigid panel. The panels may be provided with feet or may be adapted for mounting on a wall. The method may be modified by placing a performed asbestos-cement mat in the mould and then embedding the superposed heating element in a further asbestos-cement mat as previously described. Alternatively, the heating element may be inserted initially into the mould and then embedded in asbestos-cement slurry in a single operation.
Patent GB-1483372-A (GB)
Title: Apparatus for supporting a sliver can
IPC: B65H63/08
Filed: 1974-10-02
Abstract: 1483372 Sliver coiling: can support MASCHINENFABRIK RIETER AG 2 Oct 1974 [10 Oct 1973] 42729/74 Heading D1F In a sliver coiler, a can-supporting table is connected with a piston rod of a piston moving in a compressed air cylinder beneath the table to yieldingly support the table, there being means to adjust the air pressure in the cylinder and a switching element responsive to a set predetermined amount of downward movement of the can table, resulting from a pre-set quantity deposited in the can, to stop continued delivery of sliver into the can. During coiling, table 3 supporting can 1 is pressed against ring 19' by single-acting air jack 6, 7. When the weight of coiled sliver exceeds the force exerted by the pressure beneath the piston, as adjusted by valve 11, the piston rod 6 descends and operates switch 8 to stop sliver feed 14. A switch-controlled stop valve may be placed in air duct 10. Switch 8 may be replaced by a pressure switch in duct 10.
Patent GB-1150515-A (GB)
Title: Improved Adjustable Cutting Tool Assembly
IPC: B23B29/20
Filed: 1967-09-20
Abstract: 1,150,515. Tool turrets. DE VLIEG MACHINE CO. 20 Sept., 1967 [12 Oct., 19661, No. 42786/67. Heading B3C. Each of the tool holders 14, 16, 18, 20 in the turret 10 of a boring and facing machine is secured in a bore 22 of the turret by a screw 58, and is slidably located against rotation by a key and keyway 24, 46. The holder is closely fitted in the bore by wear strips 42 located on a screwed shank 32, and the radial position of the tool holder in the turret is adjusted by a graduated nut 50, which engages a seat 28 in the bore. A spring 54 acts between the nut and a further nut 56.
Patent GB-990591-A (GB)
Title: Apparatus for investigating seepage of liquids through the beds of reservoirs and the like
Inventor: IONIDES MICHAEL GEORGE
IPC: G01N33/24
Filed: 1962-11-13
Abstract: 990, 591. Testing physical properties of materials. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Feb. 11, 1964 [Nov. 13, 1962], No. 42923/62. Heading G1S. Apparatus for determining seepage through the bed 5 of a reservoir comprises a chamber defined by a member 1 and a flexible membrane 8 and having a lip 4 which can be pressed in bed 5. Liquid is fed to the chamber through a passage 12 and, due to membrane 8, is subjected to the pressure head in the reservoir. The volume of liquid supplied via passage 12 which seeps through bed 5 in a given time is a measure of the rate of seepage. The seepage to particular places, e.g. wells, may be determined by including a tell-tale in the liquid supplied by passage 12. A detachable handle 10 and a float connected by a chain or cord 15 may be provided for insertion and removal of the apparatus in a reservoir.
Patent GB-1129037-A (GB)
Title: Liquid injection device for gas chromatography
Inventor: JENKINS ANTHONY
IPC: G01N30/20
Filed: 1966-09-26
Abstract: 1,129,037. Gas chromatography sample injector. W. G. PYE & CO., Ltd. 19 Sept., 1967 [26 Sept., 1966], No. 42924/66. Heading B1L. A gas chromatography sample injector comprises a sample vessel 1 which is connected to the top of the column 2 by a tube 3 which dips into the sample 4, the sample and the column being normally maintained at the same gas pressure by means of line 6, vessel 10 being maintained during this phase at a higher pressure by gas supplied by line 9. When a sample is to to be transferred to the column 2 from vessel 1, valve 8 is operated, and the excess pressure in vessel 10 forces sample 4 from vessel 1 through tube 3 to column 1 until the pressures equalize, when sample remaining in line 3 siphons back into vessel 1. In a modification, valve 8 incorporates an auxiliary piston and cylinder which exerts suction on line 6 between valve 8 and vessel I when the valve is being returned to its normal position, and thus causes sample in line 3 to be sucked back into vessel 1. The amount of sample delivered depends upon the pressure difference between the gas supplies and upon the geometry of the various components of the system.
Patent GB-1401309-A (GB)
Title: Moulds and methods of moulding
IPC: C03B9/38
Filed: 1972-09-15
Abstract: 1401309 Glassware forming mould SIEMENS AG 15 Sept 1972 [17 Sept 1971] 43002/72 Heading C1M A glassware forming mould 1 has in its wall surrounding the mould cavity at least two passageways 4, 5 located at different distances from the axis of the mould cavity within which are located temperature sensors. Preferably several pairs of passageways are provided (Fig. 3) each pair being located on a radius. Each sensor is preferably a rod-shaped resistance thermometer. The sensors are each connected to a computing circuit so that the average inner wall temperature or average heat flow through the wall may be determined.
Patent GB-1410503-A (GB)
Title: Manufacture of siliceous products
IPC: C04B35/64
Filed: 1972-09-19
Abstract: 1410503 Ceramics; glass manufacture; glazes F W A KURZ 19 Sept 1972 43353/72 Headings C1J and C1M A siliceous product is obtained by heating at 1000‹ to 1200‹ C. a fly or filter dust, containing 75-92% of SiO 2  and one or more metal oxides and having a specific surface area of at least 1 m.<SP>2</SP>/g., with one or more other materials, e.g. refractory oxides (Al 2 O 3 ; ZrO 2 ) clays, waste dust from steel or copper manufacture and which can be used in the manufacture of glass compositions and glazes. The product can be porous by including organic burn out materials or gas generators (Al+CaO). The fly dust contains at least one metal oxide and minor amounts of C and S and is preferably that obtained from a Fe-Si; Si-chrome; or Si-Mn manufacture. The mixture is enclosed in a sheet of metal which retains the gases formed at low temperatures to provide a reducing atmosphere but which ruptures at high temperature to give an oxidizing atmosphere.
Patent GB-1430780-A (GB)
Title: Tool holder with cutter clamping means
IPC: B23B29/04
Filed: 1973-09-14
Abstract: 1430780 Tool holders F SIROLA 14 Sept 1973 [14 Sept 1972] 43390/73 Headings B3B and B3T A cutting tool comprises a holder 10 and a replaceable cutting insert 28 which is mounted in a recess at the end of a blade-like supporting member 20 which is mounted in a groove 13 in one side of the holder 10. The blade is provided with a slot 23 which divides it into two portions 25, 26 the portion 26 having the recess for the insert 28 which have complementing engaging bottom regions. The holder is provided with a screw actuated slide member 36 which is in a complementary slot 16 which is inclined downwardly towards the blade axis and whereby displacement of the slide member causes pressure on the upper portion 25 of the blade which overlies the rear end of the insert to clamp the insert in the recess and the blade 26 in the groove 13 of the holder.
Patent GB-1055956-A (GB)
Title: Gas turbine engine
Inventor: HALLS GORDON ALLAN
IPC: F23R3/56
Filed: 1964-10-23
Abstract: 1,055,956. Gas turbine engine combustion equipment. ROLLS-ROYCE Ltd. Oct. 15 1965 [Oct.23, 1964], No. 43414/64. Headings F1G and F1L. A gas turbine engine comprises one or more compressors, combustion equipment comprising a flame tube, nozzle guide vanes, and one or more turbines, all arranged in flow series, there being means for effecting rotation of the flame tube or part of the flame tube so as to reduce the extent to which the nozzle guide vanes are simultaneously subjected to different temperatures. In a first embodiment, Fig. 2, the combustion equipment comprises a series of flame tubes 16 each of which is rotatably mounted in bearings 17 and 18 and being rotated by air flow acting on inclined vanes 26 secured to the outer surface of the flame tube. The flame tube has a primary air inlet swirl device 22, secondary air inlet apertures 23, dilution air inlet apertures 24 and film cooling air inlet apertures 25. The turbine inlet nozzle guide vanes are indicated at 14. In a second embodiment Fig. 3 (not shown) only the central portion 33 of the flame tube is rotatable, the upstream portions 31 and 35 being fixed. The central portion is rotatably supported from the outer casing 11 by means of bearings 37, 38. Rotation is effected by air flow acting on the inclined vanes 40.
Patent GB-1149390-A (GB)
Title: Improvements in or relating to the after-compaction of porous layers
IPC: C23C4/08
Filed: 1966-09-30
Abstract: 1,149,390. Coating with metals. SIEMENSSCHUCKERTWERKE A. G. Sept. 30, 1966 [Oct. 9, 1965], No.43929/66. Heading C7F. A plasma sprayed layer of e. g. tungsten on a ceramic or metal substrate of e.g. a UO 2  - MO ceramet, is coated with a material, e.g. tungsten, by pyrolytic decomposition of a compound, e.g. tungsten carbonyl, to fill the pores in the sprayed layer. The substrate is heated by induction, and the walls of the reaction chamber are heated by warm water.