baber/WOPTO huggingface dataset:
Patent GB-1400538-A (GB)
Title: Exercise apparatus and a drive and control system therefor
Inventor: CHERRY R I
IPC: A63B24/00
Filed: 1972-10-18
Abstract: 1400538 Control of DC motors; electric protective arrangements DEL MAR ENG LABORATORIES 18 Oct 1972 [29 Nov 1971] 48007/72 Headings H2J and H2K [Also in Division A6] An exercise treadmill is driven by a D.C. motor 12 controlled by a unit 20 comprising a speed control rheostat 22, and an on-off switch 24 which, after it has been switched into its off position, cannot then switch the motor on again until the control rheostat 22 is returned to its zero-speed position. Fig. 3 shows a mechanical interlock in which a pinion 26 coaxial with speed control 22 engages a rack or a slide 32, one end of which enters a space 42 above a spring- biased latch 44 having an inclined surface 46. Button 40 cannot be switched on unless pinion 26 is turned fully anti-clockwise. Fig. 6 shows an alternative interlock constituted by an electrical circuit having a switch 56 which is closed only when control rheostat 22 is in its zero-speed position. Upon closure of twopole switch 24 one pole permits energization of relay coil 54 to close relay contacts 50, and the other pole keeps the relay closed when the switch 56 is subsequently opened. Relay 50 feeds A.C. power to a control module 18 which includes an SCR bridge rectifier 19 and a safety circuit 62. If the voltage applied to the motor 12 exceeds the voltage set by control rheostat 22 by more than a predetermined amount, e.g. due to failure of an SCR, then to prevent sudden acceleration of the treadmill, safety circuit 62 opens the switch of a relay K1 connected in series with switch 56 and the coil 54 of relay 50
Patent GB-1069527-A (GB)
Title: Circuit arrangement for increasing the maximum amplitude of the output voltage of a phase sensitive detector
IPC: H03D3/00
Filed: 1964-11-30
Abstract: 1,069,527. Phase sensitive circuits; transistor amplifying circuits. CESKOSLOVENSKA AKADEMIE VED. Nov. 30, 1964 [Dec. 4, 1963], No. 48590/64. Headings H3A and H3T. A D.C. voltage input V 1  is chopped by a switching transistor T 1  operated by a multivibrator M and the square wave output, after amplification at Z is demodulated by a further transistor switch T 2  synchronously operated with T 1  by the multivibrator so that a positive or negative output relative to earth potential is produced, according to the polarity of V 1 . This output is passed over one or other of two oppositely poled and self-biased diode gates D 1 -D 2 , and after amplification at A 1 , A 2  and voltage stepping up by transformers, is applied to one or other of two rectifiers U 1 , U 2 , e.g. voltage doublers, each having a common output terminal so that across the other terminals a differential amplied D.C. output reversible in polarity with the input D.C. is obtained.
Patent GB-1484370-A (GB)
Title: Data processing apparatus
IPC: G06T17/00
Filed: 1974-11-09
Abstract: 1484370 Data processing FERRANTI Ltd 31 Oct 1975 [9 Nov 1974] 48612/74 Heading G4A Data relating to information represented by lines on a map or chart are processed to determine whether or not a particular line on the map or chart passes through a particular area or point of interest. A computer supplies a store S2 with the co-ordinates of points on the line which fall within an area, e.g. 10 km. square containing the area or point of interest, the coordinates being conveniently expressed relative to those of the point of interest or of a pair of opposite corners of a rectangular area of interest. Identifying numbers for the points are also supplied to the store S2. A register R2 contains the address of the first word of a set relating to the next map point to be processed, the words of a set being accessed by a counter Cl. In operation, counters C2-C5 are loaded with the map point co-ordinates (only two counters are required if passage of the map line through a single point of interest is being sought), and a register R1 is loaded from store S2 with a word formed by pairs of bits which denote the direction N, E, S, W of elements which together approximate the span of the map line between two successive points. A logic block CL2 increments or decrements the counters C2-C5 selectively according to the direction of each element in a line span. If, during the tracing of a line span, a logic block AD detects a predetermined state of the sign outputs of the counters C2-C5, then this signifies that the map line passes through the area or point of interest.
Patent GB-1165899-A (GB)
Title: Sealing of Electrical Cells
IPC: H01M2/12
Filed: 1966-10-31
Abstract: 1,165,899. Venting electric cells. TEXAS INSTRUMENTS Inc. 31 Oct., 1966 [3 Jan., 1966], No. 48628/66. Heading H1B. An electric cell consists of a container, positive and negative electrodes within the container, a cover closing the top of the container and having a hole in it, a cap having a vent in it over the hole and a seal within the cap and movable between a sealing position in which a surface of the seal is over the hole and a venting position, the seal being moved from the sealing position to the venting position under a predetermined pressure within the container and returning to the sealed position when the pressure is relieved. In Fig. 1, container 1 is a metal cylinder sealed by metal cover 3 and sealing material 11. The spiral electrode assembly 13 comprises a positive plate connected to cover 3 and a negative plate connected to container 1. Spacer 23 keeps the electrode assembly and the connector 21 in position. Gas may escape from the cell via hole 25 and vent 37 but is prevented from doing so by spider shaped spring 39 which has 3 legs pressing against the inside of cap 5 and a body pressing against the hole 25. The outside of the spring is covered in an elastomer. Figs. 4-6, 8 and 9 (not shown) illustrate alternative types of seal. The seal may simply be a piece of elastomer. Alternatively it may comprise a temperature compensating bimetallic strip. Instead of being through the cap, as shown, the vent 37 may be between the cap and the cover.
Patent GB-1485448-A (GB)
Title: Comminuting combustible material
IPC: B02C23/00
Filed: 1974-11-11
Abstract: 1485448 Comminuting apparatus; comminuting at low temperatures B O C INTERNATIONAL Ltd 5 Nov 1975 [11 Nov 1974] 48783/74 Heading B2A A process for comminuting a combustible material employs milling in atmosphere the oxygen content of which is controlled below the level at which combustion of the material would be supported. An inert fluid e.g. liquid nitrogen may be added to the mill to maintain an oxygen atmosphere <15% and preferably <9%. The mill which includes an oxygen content motor may be used to grind sulphur and may be a hammer mill ball mill rod mill or jet mill. Liquid nitrogen is added by a valve 16 controlled in response to a flow indicator 24. Ground sulphur is removed by a conduit 28.
Patent GB-1272224-A (GB)
Title: Improvements in or relating to discriminator circuits
Inventor: GINN MICHAEL GRAHAM
IPC: G08G1/01
Filed: 1968-10-15
Abstract: 1,272,224. Road traffic detectors. MARCONI CO. Ltd. 22 Aug., 1969 [15 Oct., 1968], No. 48801/68. Heading G4Q. In a traffic detection arrangement employing a traffic sensor as disclosed in Specification 1,209,506, each axle of a small vehicle may produce an output signal as at A, Fig. 2, whereas a very large slow moving vehicle may produce a large decaying oscillatory output signal as at B for each axle. Thus a detecting arrangement responsive to a positive signal excursion would give an indication every positive half cycle of the decaying oscillation of signal B. The invention relates to a discriminator circuit which processes the output signal so that a single vehicle produces only a single indication. As shown, Fig. 1, the discriminator circuit comprises an input 1 to which signal B is applied. The output of amplifier 2 is connected to a peak signal detector 3 and to a gate 4. The output of detector 3 has the form C. Since energy is lost in detector 3 the amplitudes of the positive excursions of the signal B exceed the detector output. The leading edge of signal C is passed by a gate 6 to trigger a monostable 7 which generates a pulse D. Pulse D is fed back to the inhibit input of gate 6 to prevent retriggering of monostable 7 for the pulse duration. The trailing edge of pulse D triggers monostable 8 which produces the first one of pulses E, this pulse E opening gate 4 and permitting the signal B to pass to a comparison circuit 5 where it is compared with signal C. If during the open period of gate 4 the signal B exceeds the signal C, the comparator output triggers a monostable 9 which produces the first one of pulses F. Pulse F is used to inhibit monostable 7 and its trailing edge is used to retrigger monostable 8 to effect a further comparison in circuit 5. The cycle repeats providing that signal B exceeds signal C. As shown, the signal C is not exceeded in the fourth comparison during the fourth pulse from monostable 8 and the cycle is terminated. The outputs of the monostables 7, 8, 9 are fed to an OR gate 10 whereby this gate produces a single output pulse G, at terminal 11. If the signal A is applied to input 1, this will not exceed the output of detector 3 and hence monostable 9 will not be triggered. The output will thus comprise the pulse from monostable 7 and a single pulse from monostable 8 as indicated by the shorter pulse G defined by the dash line. Thus the length of pulse G gives some indication of the size of the vehicle causing it.
Patent GB-1224277-A (GB)
Title: Method of and apparatus for transferring flat flexible sheets, for example, pieces of leather, films and the like, from a supply station to a feeder
IPC: C14B1/62
Filed: 1969-10-07
Abstract: 1,224,277. Feeding sheets. MASCHINENFABRIK TURNER A.G. 7 Oct., 1969 [7 Oct., 1968; 18 July, 1969], No. 49221/69. Heading B8R. Flexible sheets 1, e.g. leather skins, stacked on a trestle 2 (Fig. 1, not shown) are transferred to a feeder 11, 13, e.g. the intake of a leathertreating machine, by an arrangement including a suction head 3 which lifts the uppermost sheet and then moves along guide rails 12 to position the sheet above a vertically disposed swingable conveyer 6 constituted by a belt and rollers 7, 8; the sheet is deposited on the conveyer so that it hangs over the conveyer which is then swung into a position, shown dotted in Fig. 2, in which it delivers the sheet to the feeder 11, 13. The sheet 1 may be held on to the conveyer 6 by suction applied through the roller 7. In a modification, the conveyer is in two portions which swing upwards in opposite directions to support the sheet so that it cannot slide off during transfer to the feeder 11, 13 (Fig. 3, not shown). In another embodiment (Figs. 4 and 5, not shown), an auxiliary swingable conveyer is provided to co-operate with the main conveyer so that the sheet 1 may be delivered to the feeder with a desired face uppermost.
Patent GB-1314097-A (GB)
Title: Heat exchange system
IPC: F22B37/10
Filed: 1970-10-16
Abstract: 1314097 Heat exchange elements; fluid heaters RAYTHEON CO 16 Oct 1970 [11 Feb 1970] 49345/70 Headings F4A and F4S A heat exchange system includes a heat exchanger which comprises a thermally conductive matrix 13 in structural and heat exchange association with conduits 11 through which a fluid flows and is thereby heated, said matrix having a plurality of interconnected passages therethrough having surface areas which are curved in two directions and said heat exchanger defining a plenum chamber 12 in which hot gas at a temperature in excess of 1000‹ F. is generated, said system including means for directing the hot gas through the matrix passages. The matrix may comprise spherical or ovoidshaped bodies bonded together and to the conduits 11. The conduits and the matrix structure may be of steel coated with a thin brazing material layer (e.g. À001 inch thick) of copper. Alternatively the conduits and matrix structure may comprise an integral casting. Or the structure may be made of a non-metallic material such as graphite.  As shown, the hot gas generating means comprises a burner assembly 22, preferably a burner assembly as described in Specification 1,286,356, wherein heat is radiated from a screen 26 to the matrix and conduit structure 11, 13. In a high temperature apparatus as described, combustion takes place outside the screen 26. The fluid to be heated may be circulated through the conduits 11 by a pump and may comprise cooking oil or an industrial heavy oil circulated from a vat (61, Fig. 5), or water or a water-steam mixture which may be converted into steam in the conduits 11 for heating or power purposes (Figs. 3, 4). In further arrangements (Figs. 8-10) the fluid flows through a helical tube coil embedded in the matrix and may be turbulated by spherical bodies bonded to the interior surface of the tube.
Patent GB-1474126-A (GB)
Title: Electrostatographic duplex copying apparatus
IPC: G03G15/23
Filed: 1974-11-14
Abstract: 1474126 Duplex copying XEROX CORP 14 Nov 1974 [17 Dec 1973] 49375/74 Heading B6C A duplex copying apparatus 10 comprises a photo-receptor 18 which donates a first image to a transfer member 12 by contact and then donates a second image to a copy sheet 24 fed between the members 12, 18 while the first image is transferred to the other side of the sheet 24. Transfer is caused by electrically biassing discrete electrodes 34 in the vicinity of the nip 20 so that the first image, which has had its polarity reversed by a corona discharge 26, is repelled and the second image attracted both towards the sheet 24. A grounding brush 39 for the electrodes 34 is provided. The corona discharge 26 is connected to A.C. for cleaning the member 12.
Patent GB-549986-A (GB)
Title: Improvements in the treatment of textiles with alkalies
IPC: D06M11/38
Filed: 1942-01-22
Abstract: 549,986. Treating textiles with liquids ; dyeing processes. BLEACHERS' ASSOCIATION, Ltd., PARKER, C. S., FARRINGTON, F., and STUBBS, A. E. Jan. 22, 1942, No. 495/41. [Class 15 (ii)] Textile materials consisting of mixed fibres or fabrics of wool with cotton, artificial silk, or other cellulose fibres, are treated with aqueous alkali under conditions of time, temperature, and concentration required for conferring increased affinity for dyestuffs and/or enhanced lustre upon the cotton, artificial silk, or other cellulosic fibres, degradation of the wool being reduced or inhibited by the presence in the aqueous alkali of a water-soluble inert salt, particularly an alkali metal chloride, nitrite, or thiocyanate. The inert salt is one which does not react with water, caustic alkali, or the fibres, under the conditions of treatment. The caustic alkali may be a hydroxide, zincate, or aluminate of sodium or potassium. Instead of mixed materials containing wool, mixed materials containing other animal fibres such as mohair may be treated. In an example, a fabric of wool and cotton is mercerized with a solution of caustic soda containing sodium chloride or nitrite. The solution may contain 35 grams caustic soda per 100 c.c. of solution and may be saturated with respect to sodium chloride, or it may contain 9 grams caustic soda per 100 c.c. of solution and be saturated with respect to sodium thiocyanate. If the treatment is sufficiently prolonged the potential shrinkage of the wool is diminished. The process may be applied to mixed materials in the form of yarn, fibre, hank, or piece goods.
Patent GB-1411127-A (GB)
Title: Sealing of packages
IPC: B65D41/04
Filed: 1972-10-27
Abstract: 1411127 Closure caps ANCHOR HOCKING CORP 27 Oct 1972 [27 Oct 1971] 49721/72 Heading B8T A sealed package comprises a closure 2 applied to a container 3. The closure 2 has an annular compressible gasket 5 applied to the inside of the cap skirt and the cap cover 7 either by flowing into the cap as a ring or by inserting a pre-form and shaping it by a moulding tool to have a thickened top sealing portion 10 with a thinner skirt portion 11. When the cap is applied to the finish 4 of the container 3, portions of skirt 11 are bulged inwards to engage in slots 12 spaced around the periphery of the container, forming projections 13 which retain the closure 2 on container 3. The slots 12 have sloped ends or ramps (17), Fig. 5 (not shown), and on removing the cap 2 by twisting, the projections 13 ride up ramps (17) on to bridging sections 18 between the slots, reducing the radial depth of gasket 5 and releasing projections 13 from slots 12. Simultaneously the vacuum is broken by the provision of an air path (19), Fig. 7 (not shown), under skirt 11, over the rim 15 of the container, and through venting grooves 20 around the edge of the jar. Additional venting depressions (21), Fig. 8 (not shown), may also be present. The container finish may have flats (25) (27), Figs. 11, 12-13 (not shown), with vertical or tapered faces to assist in breaking the vacuum. Preformed gaskets with angled projections (36), Fig. 15 (not shown), may be used to assist in removal from the container, and projecting knobs (33), (45), Figs. 14-15 (not shown), on the gasket prevent nesting prior to use.
Patent GB-1069079-A (GB)
Title: Fuel and lubricant compositions
IPC: F02B3/06
Filed: 1965-12-03
Abstract: Fuel and lubricant compositions contain as additives at least one of the following pairs of additives: (A) [R-(OCH2CH2)x-O]3P = O and <FORM:1069079/C4-C5/1> (B) (I) <FORM:1069079/C4-C5/2> AND (II) <FORM:1069079/C4-C5/3> (C) (III) <FORM:1069079/C4-C5/4> AND (IV) <FORM:1069079/C4-C5/5> where R is C8-18 alkyl, R1 is C4-18 alkyl, R2 is H or alkyl (at least two R2's being alkyl and the total number of carbon atoms in the total R2's being 5-36), R3 is H or methyl, x is 3-10, y is 2-12, and z is 2-20; or any of these pairs of compounds in which one or two equivalents of ethylene oxide in at least one of the ingredients is or are replaced by propylene oxide. Small amounts of the corresponding chlorides may be present.  Any of the compositions may contain a small amount of an amine, particularly a higher tert-alkyl primary amine, present as excess during the preparation of the phosphorus compounds, the amine having been introduced to neutralize HCl.  The base oil of the fuels may be gasoline, jet fuel oil, diesel fuel oil or furnace oil; and for the lubricants may be any of a variety of mineral oils, a spindle oil, an hydraulic oil, dioctyl or dinonyl adipate, azelate or sebacate, or, when the composition is to be used as an hydraulic fluid, a phosphate ester. The lubricants may be gelled to form greases.ALSO:Mixtures of neutral and acidic phosphoric acid esters of formulae [R-(OCH2CH2)x-O]3P = O and <FORM:1069079/C2/1> where R is the residue of nonyl phenol, dinonyl phenol, dodecyl phenol, tridecyl alcohol, or a mixture of myristyl, cetyl and stearyl alcohols, and x varies from 3 to 9 in various specific products are prepared by reacting 1 mole of phosphorus oxychloride with 3-3.5 mole of the ethylene oxide condensate of the alcohol or phenol.
Patent GB-1385419-A (GB)
Title: Wire-rope twisting assembly for a wire-rope winding machine
IPC: H01B13/02
Filed: 1972-10-30
Abstract: 1385419 Tubular stranding machine KHARKOVSKY ORDENA LENINA POLITERHNICHESKY INSTITUT IMENI VI LENINA KHARTSYZSKY STALEPROVOLOCHNO - KANATNY ZAVOD and GLAVMETIZ MINISTERSTVA CHERNOI METALLURGII SSSR 30 Oct 1972 [28 Oct 1971 11 Nov 1971 5 Sept 1972 (2)] 49908/72 Heading D1T In a tubular stranding machine, each bobbin carrier within the tubular rotor is prevented from rotating by an electromagnet located outside the rotor, and carrier rotation is sensed to stop the machine. A carrier 7 within non- magnetic tubular rotor 2, e.g. of glass reinforced plastic, is prevented from rotating by electromagnet 22. Carrier rotation may be sensed by two sensors which respond to the reshaping of the magnetic field by carrier rotation and which are located on one magnet pole. Alternatively, carrier rotation is sensed by the interception of a light beam by a holed disc which rotates with the carrier. The centre of gravity of each carrier 7 and spool 8 is located on the axis of the rotor 2. The machine may be installed with its rotor axis at an angle of from 0-60 to the vertical. Rotor 2, driving drum 18 and winding drum 20 are driven by motor 21.
Patent GB-1315718-A (GB)
Title: Phase control device
IPC: G05F1/455
Filed: 1970-10-21
Abstract: 1315718 Switching systems; phase controlled rectifiers HOLZER PATENT AG 21 Oct 1970 [12 Nov 1969] 49978/70 Headings H2F and H2H [Also in Division H3] In a phase control device for determining the amount of energy from an alternating current source to be applied to a load and including a phase-controlled thyristor or triac, the phase. controlled device is shunted by a transistor so as to minimize the rate of build up of current in the circuit and hence reduce high frequency interference. As described, at the required phase angle, a transistor is turned on gradually so as to provide a controlled rate of current rise before the thyristor or triac is turned on. The transistor is turned off in each half cycle when the thyristor or triac is conductive.
Patent GB-1248436-A (GB)
Title: Combined steam power plant and distillation system
IPC: F01K17/04
Filed: 1968-10-23
Abstract: 1,248,436. Steam turbine power plant. SALINE WATER CONVERSION CORP. Oct.23, 1968 [Oct.27, 1967], No. 50323/68. Heading F1Q. [Also in Division B1] Salt water, e.g. sea water, is pumped through line 42 and the tubes 46 of condenser 36 in which the steam exhaust from low-pressure turbine 12 is condensed; and the steam-condensate is pumped from line 38 through nozzles 68 into a multi-stage flash evaporator wherein it contacts and condenses the vapours evolved from heated salt water flowing through narrow downflow channels 62. Part of the fresh water withdrawn from the top condenser region 66a is passed through line 80, de-aerating tank 26 and heater 22 to the boiler 16 which supplies steam to high-pressure turbine 10. The remainder of the fresh water from condenser region 66a is withdrawn from the system as product. Before being introduced into the flash evaporator, the salt water from tubes 46 is further heated in heaters 48, 50, 52 by steam tapped from low-pressure turbine 12, and the heated water is passed through de-aerator 54 and then introduced into the top-most flash channels 62a. The condensate formed in heaters 48, 50, 52 is passed to condenser 36. Residual brine is discharged from the lower end of the multi-stage evaporator. The exhaust from the H.P. turbine 10 is passed through moisture separator 30 and re-heater 32, and is then introduced in L.P. turbine 12. Re-heater 32 is supplied with steam from boiler 16, and this steam then flows to heater 22 which is also heated by steam tapped from turbine 10. The steam from heater 22 and the moisture from separator 30 are passed into the de-aerating tank 26.
Patent GB-1507619-A (GB)
Title: Detachable end platform for merchandise display unit
IPC: A47F5/00
Filed: 1976-12-02
Abstract: 1507619 Shelving M A OZTEKIN 2 Dec 1976 [19 Feb 1976] 50328/76 Heading A4B A display stand including uprights 10 with slots 11 to receive shelf brackets is provided with an end platform comprising shoes 12 detachably connected to an upright 10 and a base 19 for supporting a top 26, the base 19 being detachably secured to the shoes 12 by channel section clips 32 which slidably engage flange formations on the shoes 12 and on brackets 27 secured to side walls of the base 19 whereby the base 19 may be removed without removing merchandise from the remainder of the stand.