baber/WOPTO huggingface dataset:
Patent GB-1183478-A (GB)
Title: One-way Clutch in a Vehicle Drive
Inventor: ATCHISON EDWARD J
IPC: F16D41/20
Filed: 1967-09-18
Abstract: 1,183,478. Ratchet clutches. E. J. ATCHISON. 18 Sept., 1967 [23 June, 1967], No. 42451/67. Heading F2C. A one-way coil-spring clutch for the frontwheel 12 drive of a battery-powered electric motor (19) driven trolley (10) (Figs. 1 and 2, not shown) comprises a coil spring 33 surrounding adjacent hub halves 31, 32 the former 31 of which is pinned at 34 to a shaft 26 journalled at 27 in a fixed frame 13 and chain driven by the motor (19) and the latter 32 being welded to a centre tube 25 of the front wheel 12, the spring 33 being welded at one end to a portion 31b of the driving hub half 31 and frictionally contacting at its other end a portion 32b of the driven hub half 32, the hubs 31, 32 having truncated portions 31c, 32c connecting the ends 31b, 32b to smaller diameter centrally adjacent portions 31a, 32a around which smaller diameter central coils of the spring 33 are arranged with clearance, the arrangement being such that on starting, the time lag for tightly coiling the spring on the hub halves combined with a preceding speed reduction chain drive (sprockets 22, 20, Fig. 2, not shown) greatly reduces the battery drain of motor (19), the shock load on which is also substantially reduced.
Patent GB-1063515-A (GB)
Title: Measuring instruments for determining a physical property of a material
Inventor: MALTBY FREDERICK LATHROP
IPC: G01N27/24
Filed: 1963-10-29
Abstract: 1,063,515. Determining moisture content of material, electrically. INDUSTRIAL NUCLEONICS CORPORATION. Oct. 29, 1963, No. 42685/63. Heading G1N. Relates to a dual frequency capacitor probe apparatus for determining the variable moisture content q of a material irrespective of the variable filling factor p of the material (i. mass/unit volume or unit area). The probe C 1  (Fig. 8) is included in a capacitance bridge, which is balanced when no material is in the probe, and is energized at two different frequencies f1, f2 from voltage sources 40, 42. The unbalance bridge output signal due to material in the probe is amplified in a high gain amplifier 68 and is separated into its components in filters 46, 48, and fed to detector circuits 50, 52 to provide two signals SH, SL which are functions of the filling factor p also of KH and AL the effective dielectric constants at high and low frequency respectively. In the unbalance condition a periodically varying net charge is induced on commonly connected plates of the probe capacitor C 1  and a balancing capacitor C 0  which is virtually removed instantaneously by a feedback circuit across the amplifier including capacitor C 1  64. This feedback arrangement together with suitable design of the probe geometry is said to ensure that the functions SH, SL are linear with respect to the filling factor p which is eliminated in simultaneous equations given for SH and SL, by calculation of the ratio SL/SH in a ratio computer 70. The result is an output signal  g (K) from the computer which is entirely independent of p and is determined only by the dielectric constant K which is a function of the moisture content q. The output g(K) may be utilized in a suitable instrument 58 calibrated in percentage moisture content units. The material to be measured may be placed in the spray or fringe field of the probe adjacent the plates as Fig. 11 (not shown) and in addition a known earthed guard electrode may be interposed between the probe plates, Fig. 12 (not shown), so that substantially all the aqtual field between the probe plates passes outwardly as spray field which interacts with the material. Fig. 13 (not shown) illustrates the equivalent circuit of the latter arrangement. A mathematical explanation of the invention is given.
Patent GB-1040757-A (GB)
Title: Components for and a method of fabricating venetian blind bottom rails
IPC: E06B9/388
Filed: 1962-11-13
Abstract: 1,040,757. Venetian blinds. D. H. MORRENWILKINS. Nov. 12, 1963 [Nov. 13, 1962], No. 42845/62. Heading E1J. The bottom rail of a venetian blind comprises a flexible strip 1 provided along each edge with beading 2 having inwardly opening recesses 3 on each side of the strip to act as means for locating the edges of two lengths of slatting 4, 5 of widths greater than the strip 1 so that the slatting is held bowed in compression. The slatting may be spring tempered aluminium alloy. The ends of the slats may receive clips as described in Specification 982,256.
Patent GB-1081718-A (GB)
Title: Treatment of residual liquids of fermentation of molasses for the purpose of obtaining a product which can be used for animal feeding
IPC: A23K10/37
Filed: 1964-10-22
Abstract: The residual liquid from the fermentation of molasses is treated with a cation exchanger to replace potassium ions in the liquid with ammonium ions.  The cation exchanger is then regenerated, for example by treating with ammonium phosphate, a ternary liquid fertilizer containing 4-8% of ammoniacal nitrogen, 10-20% P2O5, and 10-70% K2O being obtained.ALSO:The residual liquid from the fermentation of molasses is heated with a cation-exchanger to replace potassium ions in the liquid with ammonium ions, to give a nitrogen rich product which may be used as constituent of animal foods.  The cation-exchanger may be regenerated for example by treating with a solution of ammonium phosphate, a polassium rich liquor suitable for use as a fertilizer being thus additionally obtained.
Patent GB-1085496-A (GB)
Title: Improvements in and relating to drilling fluids and lignites for use therein
IPC: C09K8/20
Filed: 1965-10-11
Abstract: Novel cobalt derivatives of lignite containing between 0.2 and 2.0% by weight of cobalt based on the dry lignite are prepared by treating lignite with a requisite amount of a water-soluble cobalt salt, followed by subsequent causticization with an alkali metal hydroxide.
Patent GB-1156580-A (GB)
Title: Television Demagnetizer
Inventor: KAHN ROBERT D
IPC: H04N9/29
Filed: 1967-09-22
Abstract: 1,156,580. Demagnetizing. FEDTRO Inc. 22 Sept., 1967, No. 43223/67. Heading HIP. [Also in Division H4] A demagnetizing coil is wound in a cavity formed as a ring-like enclosure having a hollow handle carrying switch means for making and breaking a connection between the coil and a line cord extending through the handle and adapted to be connected at its other end to an A.C. supply. The handle may project from the ring- like enclosure along a diameter or the extension of a diameter thereof (Figs. 1 and 8), or it may incline with respect to the plane of the enclosure as shown in Figs. 4 and 5 and Figs. 6 and 7.
Patent GB-1205053-A (GB)
Title: Electronic control circuits
IPC: H02H1/00
Filed: 1967-09-22
Abstract: 1,205,053. Protective arrangements. EX-CELL-O CORP. 22 Sept., 1967 [3 Oct., 1966], No. 43337/67. Heading H2K. An arrangement, e.g. for protecting an electrochemical machine, comprises leads 34, 36 for connection across the working gap, a changesensing circuit 38, 40, 42, 44, 46, 48 which provides an output signal when the voltage across the leads 34, 36 changes in one sense only, e.g. a decrease due to sparking, an amplifying circuit which provides a signal of increased magnitude only while the output signal persists, and means responsive to the amplified signal provide an output signal, when the time integral of the voltage change in the one sense exceeds a predetermined value. The change sensing circuit includes a capacitor 38 which is normally charged through a diode 42 and discharges through a diode 46 and resistor 48 when the voltage across the leads 34, 36 falls. The resulting signal across the resistor 48 is applied through an isolating transformer 56 and diode 62 to the base of a normally non-conducting transistor 58 to render it conducting. The drop in voltage at the collector of the transistor 58 causes a transistor 80 to cease conducting, a positive feedback being applied through diodes 94, 102 and a capacitor 98 to the base of the transistor 58. The output of the transistor 80 is applied through an adjusting circuit 24 and a diode 108 to the base of a transistor 104 which provides an output to effect the interruption of the supply to the machine or the operation of an indicator. A capacitor 130 is progressively charged when signals of short duration occur repeatedly so as to cause the transistor 104 to conduct after a number of such signals.
Patent GB-1063468-A (GB)
Title: Mining apparatus
Inventor: CARNEGIE JAMES
IPC: E21C35/08
Filed: 1964-10-26
Abstract: 1,063,468. Mineral-mining installations. DOWTY ELECTRICS Ltd. Oct. 21, 1965 [Oct. 26, 1964], No. 43558/64. Heading E1F. The steering of a mineral-mining machine during a cutting operation is controlled by equipment that automatically at any instant during a cutting run of the machine determines the distance along the face from a reference point and any one or more of the following measures - the pitch angle and/or roll angle of the machine, or the height of the machine with respect to a datum plane. Signals appropriate of the or of these measures is or are compared in the equipment against a signal appropriate to the corresponding measure of a programmed set of measurements for the machine at that distance from the reference point and the equipment initiates appropriate corrective steering of the machine if variation in the measured and programmed measurements exist.
Patent GB-1456945-A (GB)
Title: Mixer with rotatable mixing container
IPC: B01F29/85
Filed: 1975-10-23
Abstract: 1456945 Mixing apparatus GUNTHER PAPENMEIER KG MASCHINEN-UND APPARATEBAU 23 Oct 1975 [14 April 1975] 43632/75 Heading B1C A mixer having a mixing container 1 rotatable about a substantially vertical axis has at least two rotatable mixing screws 3, 4 in the container which in use sweep over the container wall 2, a first one 3 of said screws being adapted to convey material being mixed upwards and a second one 4 of said screws being adapted to convey material downwards, the container being chargeable by delivery of material into the vicinity of the container bottom 7 and there being discharge means 6 for discharge of material conveyed upwardly iby the said first screw, and the rotational speeds of the first and second mixing screws and the container being adjustable independently of one another. The container may be cylindrical or frusto-conical and may be provided with ribs 8 on the bottom surface 7 to assist the movement of materials towards the wall 2. Alternatively as shown in Fig. 2 an independently driven blade 13 may sweep the container bottom 7. The container may be slightly tilted towards the discharge means 6 to assist discharge. Four mixng screws may be provided, arranged in diametrically opposed pairs.
Patent GB-1298976-A (GB)
Title: Method for the settling of scale forming suspensions such as those of red mud in alumina manufacture
IPC: C01F7/0646
Filed: 1970-09-16
Abstract: 1298976 Alumina DORR-OLIVER Inc 16 Sept 1970 [17 Sept 1969] 44134/70 Heading C1A Alumina is produced from bauxite by digesting the bauxite with NaOH to give a hot, rather unstable solution of AlNaO 2  containing red mud impurities in suspension, separating the sodium aluminate solution from the red mud in a special settling tank, decomposing the aluminate to give aluminium hydroxide and calcing the hydroxide to give alumina. The tank contains a rotary rake structure with linear rake arms 32 hinged at V to the lower end of the shaft D enabling movement about a vertical axis. Drive arms 33 are fixed to the upper end part of the shaft and are connected to the rake arms by draft cables 34. The drive arms operate above the level of the sludge zone. These tanks may also be used for washing the red mud after separation of the aluminate.
Patent GB-1497694-A (GB)
Title: Method and mixture for the pack aluminising of metal objects
IPC: C23C10/48
Filed: 1976-10-28
Abstract: 1497694 Aluminizing mixture ROLLS-ROYCE Ltd 28 Oct 1976 [28 Oct 1975]  44419/75 Heading C7F A pack aluminizing mixture comprises 1À5-7 wt. per cent Al particles, 0À3-1 wt. per cent ammonium halide (preferably NH4CL), 0À3-1 wt. per cent aluminium halide (preferably AlF), and the balance Al 2 O 3  particles and impurities. The Al and Al 2 O 3  particles may be up to 75Á in diameter, and the surface to be treated may be heated in contact with the mixture in an inert or reducing atmosphere at 750-1100‹C for 1-8 hrs. In the Examples, a Nibase superalloy turbine blade having small cooling holes (of 0À03 inch diameter) is blasted with Al 2 O 3  particles, the holes are filled with the mixture, held in place by a temporary binder, e.g. gum tragacanth, and the blade is embedded in the mixture and heated in argon at 1100‹C for 1À5 hrs. (Ex 1) or 750‹C for 5 hrs. (Ex 2). The mixture may also be used to aluminize Co alloys.
Patent GB-1281100-A (GB)
Title: Broadband terminal output of a coaxial line into a wave-guide
IPC: H01P5/103
Filed: 1970-09-17
Abstract: 1281100 Waveguide couplings LICENTIA PATENT - VERWALTUNGS - GmbH 17 Sept 1970 [19 Sept 1969] 44526/70 Heading H1W A broadband coaxial line to waveguide coupling in which the end portion 6 of the inner conductor of the coaxial section 1 extends axially into the waveguide section 4, comprises a transverse web 5 at the end of the inner conductor which is electrically connected to the end 9 of the outer conductor 3 by a bracket 7 parallel to the inner conductor 6, and a transversely extending coupling pin 10 provided on the inner conductor 6 and preferably diametrically opposed to bracket 7, the end face of the pin 11 forming an adjustable capacitance with the adjacent wall 12 of the waveguide 4. The length b of the coupling loop is about 3#/4 and the height a of the coupling pin 10 above the end 9 of the outer conductor is preferably between #/8 and #/4. The capacity between the coupling pin and the waveguide wall 12 is varied by means of a screw 14. The screws 16, 17 in the waveguide and the screws 19, 20 in the coaxial line are provided for tuning. The coupling is preferably for connecting a coaxial input to a flexible elliptical corrugated waveguide when the coupling loop and coupling pin are provided in a section of waveguide forming a transition between the elliptical cross-section and a standardized preferably rectangular waveguide section, and the coupling pin is aligned to extend in the direction of the E vector of the wave to be excited in the rectangular section.
Patent GB-447353-A (GB)
Abstract: 447,353. Nonconducting coverings for heat. SEVING, F. W., 1, Maria Prõstgardsgata, BERGQVIST, A., 15, Styrmansgatan, and OLSSON, K. E., 20, Storgatan, all in Stockholm. March 18, 1935, No. 8441. [Class 64 (ii)] Heat insulation is formed of regularly spaced sheets or foils consisting substantially of cellulose acetate, dividing the insulation space into substantially parallel air layers. The sheets may be corrugated or provided with projections. Specifications 398,205, 419,637, and 432,019 are referred to.
Patent GB-1215278-A (GB)
Title: Vehicle brake splash shields
IPC: B60G3/00
Filed: 1969-09-11
Abstract: 1,215,278. Protectors for brakes. GENERAL MOTORS CORP. 11 Sept., 1969 [1 Oct., 1968], No. 44859/69. Heading F2E. In a vehicle having a chassis including oppositely disposed suspension arms 24 and wheel assemblies 16 mounted thereon, brake units 32 being positioned on the inner sides of the wheel assemblies, splash shields 40 are mounted on the suspension arms to intersect the road splash patterns from each wheel assembly and intermediate the wheel assemblies and to prevent road splash from each wheel assembly impinging on the brake unit of the assembly opposite thereto. As shown, each shield has a coaming 48 which deflects the road splash downwardly.
Patent GB-1035260-A (GB)
Title: Improvements in or relating to magnesium base alloys
Inventor: FISHER PHILIP ANDREW
IPC: C22C23/04
Filed: 1963-11-15
Abstract: In a method for making a magnesium base alloy containing at least 80% Mg at least 0.25% Zn and at least one of the elements rare earth metals or thorium the alloy is heated in hydrogen (e.g. until the alloy contains at least 50 c.c. hydrogen per 100 gms of alloy). Alloys disclosed contain:-  .R.E. metals.0.2 - 6.0% .Zn.0.25-10% .Zr.0 - 1% .Mu.0 - 2.5% and optionally, one or more of the following .Ag.up to.8.0% .Cd.up to.5.0% .Li.up to.6.0% .Ca.up to.1.0% .Ga.up to.2.0% .In.up to.2.0% .Tl.up to.5.0% .Pb.up to.1.0% .Cu.up to.0.25% .Be.up to.0.05% .Bi.up to.1.0% .Th.up to.3.0% .Fe.up to.0.1% Mg at least 80% being the balance
Patent GB-1474308-A (GB)
Title: Determining crackability of metals
IPC: G01N33/20
Filed: 1975-10-31
Abstract: 1474308 Casting metals CENTRE DE RECHERCHES METALLURGIQUES-CENTRUM VOOR RESEARCH IN DE METALLURGIE 31 Oct 1975 [31 Oct 1974] 45561/75 Heading B3F [Also in Division G1] A device for use in determining the tendency of a metal to form cracks while passing from a liquid to a solid state, comprises a hollow body having an elongate portion 3, 7, 4 of substantially uniform cross-section and two enlarged portions 5, 6 spaced from one another by the elongate portion, at least one of the enlarged portions communicating with a duct 8 for conveying molten metal to fill up the hollow body thereby forming a specimen. The metal solidifying in the enlarged portions prevents shrinkage of the metal in the elongate portion to induce a stress which may cause cracking in the metal in the elongate portion. Fig. 1 shows one of two identical longitudinal halves of the hollow body and may consist of two metal sampling mounds 1, 2. Mould 1 has an enlarged portion 5 and elongate portion 3 joined by a portion 7 to the elongate portion 4 and enlarged portion 6 of mould 2. The enlarged portion 5 communicates with a duct 8 for conveying molten metal into the body. In use, the two halves of the body are held in position by a cardboard strip and the body immersed in the molten metal and, as soon as it is full, the body is withdrawn from the molten metal. When the metal has solidified it is shaken out of body and examined for cracks. In another embodiment, the body is of refractory material, such as quartz, and formed with a tubular portion 11 between two enlarged portions 12, 13, portions 13 having a duct 14 for conveying molten metal into the body, and portion 12 having a duct 15 connectible to a vacuum means for drawing molten metal into the body when the duct 14 is immersed in the molten metal.
Patent GB-1430284-A (GB)
Title: Sprag clutches
IPC: F16D41/07
Filed: 1973-09-29
Abstract: 1430284 Ratchet clutches RENOLD Ltd 20 Sept 1974 [29 Sept 1973] 45640/73 Addition to 1314529 Heading F2C In a one-way sprag clutch wherein sprags 5 are mounted in a cage 40 rotatably fast with an outer race (not shown) and each sprag is individually biased into engagement with an inner race (not shown) by an arm 28 of a blade spring 26 and centrifugal force acts on the arms 28 during overrun of the outer race to relieve the spring force on the sprags which are thus maintained in engagement with the inner race by a light force only allowing higher permissible overrun speeds, each sprag and its associated spring is axially offset relative to an adjacent sprag and its associated spring. The sprags are formed with projections 76, 82 shaped to limit the degree of forward or reverse tilt of the sprags to prevent "roll over" or "pop-out" of the sprags. The leading and trailing projections 76, 82 of adjacent sprags engage to limit the tilt of the sprags during clutch engagement and the trailing projections 82 engage cross-bars 50 to limit the sprag tilt during overrun. Each sprag may be shaped so that centrifugal force acting on it, during overrun, passes on either side of, or through, its line of contact with the outer race to assist, oppose or have no influence on the spring force on the sprag. The cage 40 comprises two axially separable plastics mouldings which are normally held together by spring clips. The ends of the parts of the cross-bars 50 carried by each part of the cage are arranged to interfit with one another to locate the two parts of the cage circumferentially and radially with respect to one another.
Patent GB-1329864-A (GB)
Title: Automatic focussing devic3
IPC: G03B21/53
Filed: 1970-09-29
Abstract: 1329864 Automatic focusing device NIPPON KOGAKU KK 29 Sept 1970 [29 Sept 1969] 46378/70 Heading G1A [Also in Division H4] Automatic focusing of an optical system L with respect to a film F comprises a semi reflective member M which reflects part of the image forming light via an optical path length increasing or decreasing device on to a photo-electric element 1 at a conjugate point to film F, said device being actuated to oscillate the position of the image plane through and about the photo-electric element 1, the output of the element being fed to a conventional automatic focusing mechanism and used to focus the optical system L. The optical path length increasing and decreasing device comprises a positive lens 6 and negative lens 3 of equal mass mounted in lens holds 4 with guide pins 5 fitted in cam grooves 7a, 7b of a cylindrical cam 7. The cam 7 is rotated causing the lenses to move away from, and then, move towards one another at the same rate, thereby causing the positions of the image plane to shift through the active surface 2 of the photo-electric element 1. In a further embodiment, Fig.9, the lenses of the optical path length increasing and decreasing device are supported on one side by resilient members 11 and on the other side by guide pins resting of the surfaces of a suitably shaped rotatable cam.
Patent GB-1190952-A (GB)
Title: Die-Quenching Apparatus
IPC: F16C3/04
Filed: 1967-04-07
Abstract: 1,190,952. Die quenching apparatus. CATERPILLAR TRACTOR CO. April 7, 1967 [May 26, 1966], No. 46497/69. Divided out of 1,190,951. Heading C7N. Die-quenching apparatus particularly for treating crank-shafts comprises upper and lower platens carrying opposed die blocks, the latter having internal cavities communicating with the contact surfaces by a plurality of small passageways through which coolant is sprayed and having also a plurality of pads located on the contact faces to minimise the area of contact with the workpiece. The lower platen may furthermore be provided with a number of resiliently-mounted buttons which prevent contact between work-piece and dies until the latter are closed and quenching commences. As illustrated, movable and fixed platens 10, 12 respectively are each provided with a plurality of upper and lower hollow die blocks 14, 16 upon the face of which are adjustably mounted contact pads 36. The platens 10, 12 are connected to sources 30, 32 of coolant which is directed on to the work-piece 18 by a plurality of holes 42. A modified form of die mounting is also disclosed Fig. 5 (not shown).
Patent GB-967787-A (GB)
Title: Pin box
IPC: G06C7/10
Filed: 1962-12-10
Abstract: 967,787. Pin boxes. SPERRY RAND CORPORATION. Dec. 10 1962 [Dec. 21, 1961], No. 46505/62. Headings G4B and G4M. The pins 15 of a pin box, used e.g. in a calculating machine or in card sensing, are supported in holes in rubber pad 11, each hole having a reduced diameter middle section 17 which is matched by protuberances 20 on the pin.
Patent GB-948319-A (GB)
Title: Improvements in combined brush and comb devices
IPC: A46B15/00
Filed: 1962-12-11
Abstract: 948,319. Brush and comb combinations; combs. B. DIETSCHE, and A. A. DIETSCHE, [trading as ROMAN DIETSCHE]. Dec. 11, 1962 [Jan. 26, 1962], No. 46819/62. Headings A4K and A4V. In a brush having radiating rows of bristle tufts 4, 5, 6, a single row of comb teeth of alternating lengths is provided along one side of the brush and a thumb piece 7 is positioned between the brush body 1 and handle 2. The long and short teeth 8 and 9 may alternate singly or in multiples of up to five teeth. The bristle tufts, which may be of variable length, may be fixed in position during injection moulding of the plastic brush body and handle.