baber/WOPTO huggingface dataset:
Patent GB-1118585-A (GB)
Title: Improvements in electrical musical instruments
IPC: G10H1/22
Filed: 1965-06-25
Abstract: 1,118,585. Electrical musical instrument. WARWICK ELECTRONICS Inc. 25 June, 1965 [26 June, 1964], No. 27040/65. Heading G5J. An electric musical instrument incorporates control of tone maintenance and decay, with means for cutting off a note if a second is played before the first is fully decayed. Keys control switches 15, 15a, &c., each applying a voltage through an isolating diode to one of control terminals 24, 24a, 24b &c. and causing the appropriate electrically controlled gate to pass a tone signal to output 14. Arrangement of the switches and their associate tone generates in ascending tone order and series connection of the switches to the power supply 26 ensures that each switch receives current only if no key controlling a lower note is pressed, so that if several keys are pressed only the lowest note sounds. When a key is released its switch is returned to its quiescent position 28 and an associated condenser 31 maintains a voltage firstly at the appropriate terminal 24, which allows the corresponding tone to pass its gate, and secondly at control terminal 37 of the sustaining and modulation unit 21, which above a threshold control voltage makes the amplitude of its output proportional to the control voltage. Leakage of the charge through a selected one of resistances 34 controls the decay of the note. Depression of a second key before decay is complete actuates circuit 36 by its associated voltage drop across resistor 27 and causes it to make transistor 42 momentarily conductive, leaking the remaining charge to earth and stopping the note. With appropriately designed circuits transistor 42 may be made to pass comparatively slowly from this virtually shortcircuit condition to virtual open circuit and so control the attack of the new note as well as terminating the decay of the previous one.
Patent GB-356944-A (GB)
Title: Improvements in or relating to photometric apparatus
IPC: G01J1/42
Filed: 1930-09-10
Abstract: 356,944. Photometric apparatus. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and WINCH, G. T., of General Electric Co., Wembley, Middlesex. Sept. 10, 1930, No. 27072. [Class 97 (i).] Apparatus for measuring the efficiency of a lamp, either in lumens per watt or in watts per candle, comprises in the first case means for generating voltages Ef, Ei, Ev proportional respectively to the lumens, the current passing through the lamp, and the supply voltage, and then measuring Ef-Ei-Ev. In the second case a voltage Ec proportional to candle-power in a chosen direction is generated and Ei+Ev-Ec is measured. The lamp 5 irradiates a photoelectric cell 1 either by its integrated illumination or by light in a chosen direction and the output from the cell is amplified by a valve 2. The voltage Ev is obtained from a resistance R3 placed in series with a resistance R4 across the lamp terminals and Ei from a resistance R3 in series with. the filament. The voltage Ef, or Ec is obtained from a resistance R2 in the anode circuit of the valve. The voltmeter 3 gives the desired reading.
Patent GB-1330812-A (GB)
Title: Air duct provided with an air distributor
IPC: B60H1/26
Filed: 1972-06-09
Abstract: 1330812 Ventilators DAIMLER-BENZ AG 9 June 1972 [11 June 1971] 27094/72 Heading F4V [Also in Division B7] A vehicle air duct 2 for heating, ventilating and/or air conditioning has an air distributer comprising a circular disc 3 rotatable on a supporting plate 6 and carrying rockable slats 5 one of which carries a handle 8 for independently turning the disc or rocking the slats, the supporting plate being connected by bridge pieces 9 to an annular flange 10 whose inner edge protrudes into the duct and whose outer edge serves to attach the distributer to the edge of an opening in the duct wall. Two such discs may be disposed one beside the other on the supporting plate and turning of the discs is limited by an adjustable stop. Gaps 15 between bridge pieces 9 allow for ventillation of the vehicle even when slats 5 are closed.
Patent GB-669808-A (GB)
Title: Improvements in or relating to cleaning machines for cleaning watch parts and the like
IPC: G04D3/08
Filed: 1950-11-06
Abstract: 669,808. Cleaning watch parts and the like. KROUT, P. Nov. 6, 1950. No. 27112/50. Class 139. A machine for cleaning watch parts and the like comprises a mesh container for the parts carried by a rotary shaft, a sleeve mounted on the shaft having means for the intermittent rotation thereof, and a spring clutch connection between the sleeve and the shaft comprising a coiled spring wound over the spring and shaft so that it is normally frictionally tight on the shaft. With this arrangement intermittent rotation of the sleeve, which may be effected by repeatedly pulling on a cord wound there-around, is converted into a continuous rotation of the mesh container. As shown, the mesh container C is fixed to the shaft S which is rotatably mounted by ball bearings in a cylindrical support G, fixed to the lid T of a container for the cleaning fluid. Rotatably mounted on the shaft S is a sleeve SL. Fixed to the lower part of the sleeve is the end of a coil spring SP which frictionally engages the shaft S, whereby one-way motion can be transmitted from the sleeve to the shaft. Rotatably mounted on the upper part of the sleeve is a pulley P around which is wrapped a cord O terminating in a finger ring (not shown). Pivoted on the bottom flange of pulley P is a spring loaded pawl (not shown) which engages a ratchet wheel SL1 fixed to the sleeve so that by pulling the cord to rotate the pulley the sleeve and also the shaft is rotated. This movement also winds up a light helical spring HS, the top end of which is fixed to the pulley and the bottom end to the base of the cylindrical guide G. This spring then turns the pulley freely to wind up the cord ready for the next pull A flywheel F may be fixed to the top of the shaft. The shaft S is a sliding fit in the coil spring SP and so may be raised to bring the mesh container C above the liquid.
Patent GB-228858-A (GB)
Title: Improvements in caps or sockets for incandescent electric lamps and the like
IPC: H01K1/46
Filed: 1924-11-14
Abstract: 228,858. Marsat, A. J. B. Feb. 6, 1924, [Convention date]. Thermo-electric batteries -To enable the filaments of electric lamps to be cor rectly located with respect to the supporting-pins or the cap, the cap is made ir two parts, in known man ner, of which the inner part a is fixed on the bulb and has a rounded part engaging with the exterior member b, the parts a, b being secured together after the position of the filament has been adjusted. Holes c in the part b facilitate the soldering or brazing operation. In place of a few holes c the member b may be perforated all over. The device is applicable to thermo-electric batteries.
Patent GB-1501929-A (GB)
Title: Pyrrolidines and their use as attractant for ants
IPC: C07D207/263
Filed: 1975-06-27
Abstract: 1501929 Attractants for ants NEDERLANDS APPLIED SCIENTIFIC RESEARCH FOR INDUSTRY TRADE & COMMERCE 27 June 1975 [28 June 1974] 27281/75 Heading A5E [Also in Division C2] The invention comprises an attractant preparation for ants comprising as an active ingredient at least one compound of the general formula: wherein R is an alkyl radical having from 1 to 13 carbon atoms. Example III describes the biological properties of 2-(5'-n-hexenyl)-5- n pentyl pyrrolidins.
Patent GB-1174741-A (GB)
Title: Hair Dye Compositions
Inventor: ZVIAK CHARLES
IPC: D06P3/14
Filed: 1968-06-07
Abstract: 1,174,741. Hair dye compositions. L'OREAL. 7 June, 1968 [9 June, 1967], No. 27285/ 68. Heading D1B. A composition suitable for dying animal fibres e.g. dead or live hair at below 50‹C comprises a solution of one or more direct dyes (as defined) dissolved in an homogenous mixture of water and a diol of formula I in which R is a straight or branched chain alkyl radical of 3-8 carbon atoms, a phenyl, benzyl or cyclohexyl radical and n is an integer from 1-4 preferably 1-15% by weight of diol is present and diols specified are 3- amyloxy-1, 2-propanediol, 3-benzyloxy-1, 2- propanediol, and 3-phenoxy-1. 2-propanediol, other organic solvents may also be present. Direct dyes are defined as any colouring substance which is capable of being directly fixed in the fibre in its final shade without the necessity of effecting any chemical transformation, thus nitro, disperse, basic acid dyes and pigments containing solvents are included.
Patent GB-961139-A (GB)
Title: Improvements in or relating to continuous rod cigarette-making machines
IPC: A24C5/18
Filed: 1959-08-10
Abstract: 961,139. Cigarette-making machines. D. W. MOLINS, and MOLINS MACHINE CO. Ltd. Aug. 9, 1960 [Aug. 10, 1959], No. 27293/59. Heading A2C. [Also in Division B2] In a continuous rod machine wherein surplus tobacco is removed from the tobacco stream by a trimmer 5, Fig. 1, means are provided to feed shorts to the tobacco stream so that the part of the stream on which the trimmer operates is composed mainly of shorts. The tobacco stream is formed on a perforated conveyer belt 1 by suction means drawing the tobacco up through a passage 3 as described in Specification 895,733. The tobacco is fed into the channel 3 from a hopper 6 provided with carding rollers 7, 8, and a picker roller 10, Fig. 2. The tobacco is fed from a container 12 by conveyers 13, 14; the shorts fall out at the gap between the conveyers and are collected in a trough 20. The long tobacco is carried upwardly by conveyer 14 and drops into a shoot 9 in hopper 6 provided with guide vanes 22, Fig. 3, which direct it to the right hand side of the carding wheel 7. The shorts are fed along trough 20 by a worm wheel 21 and are delivered to the left hand side of wheel 7, whereby in the channel 3 the long tobacco remains to the right of line B-B and is picked up first by the conveyer 1 whereas the shorts remain to the left of the line B-B and are deposited upon the long tobacco already on the conveyer so that the surplus tobacco removed by the trimmer 5 consists mainly of shorts which are returned to the hopper 6 by vibrating conveyers 25, 26, an oblique slot 26a, Fig. 6, ensuring that the returned shorts are distributed evenly over the carding roller 7. In a modification, Fig. 4, the tobacco is removed from container 12 by an endless belt 14 and is dropped on to a set of rotating discs 33 which deliver the long tobacco into a shoot 31 whilst the short tobacco falls between the discs into a second shoot 32. Guide vanes 37, 36, in the shoots deliver the long tobacco to the right hand side of the line B-B, Fig. 1, and the shorts to the left hand side so that the filler is built up in the same manner as in Fig. 1. Specifications 854,736, 881,024, 916,141 and 929,338 also are referred to.
Patent GB-662527-A (GB)
Title: Improvements in or relating to turbine or like rotors
IPC: F01D5/08
Filed: 1948-08-07
Abstract: 662,527. Gas turbine rotors. ATKINSON. J. July 23, 1948 [Aug. 7, 1948; Jan. 20, 1948], Nos. 27430/49 and 27431/49. Divided out of 630,395. Class 110(iii) A turbine or like rotor is built up of three or more discs to form a laminar body to which blades are attached. The discs or laminµ may have a thickness which diminishes towards the periphery as shown in Fig. 1, or the rotor may be built up of laminµ of different diameters, to produce the same effect, as shown in Figs. 6 and 8. In the rotor of Fig. 4, the discs are thinned towards the periphery but have rims of full thickness which abut. Narrow channels 16, 17 are cut in these rims to provide for the circulation of a cooling fluid which enters at 12, passes from one inter-disc space to the next by passages 20, 22, and is evacuated at 25. The chamber enclosed by the disce 24 may be divided by guide blades 23 and, in respect of the cooling fluid, the rotor acts as a pump. To provide cooling spaces, the rims and hubs of the discs may be separted by spacer rings. These spaces may be filled with a sodium salt and sealed. Specification 630,395 is referred to. Reference has been directed by the Comptroller to Specification 628,100.
Patent GB-358685-A (GB)
Title: Improvements in or relating to safety valves
IPC: F16K17/08
Filed: 1930-09-15
Abstract: .358,685. Safety valves. NORRIE, L. F., 30, South Fort Street, Bonnington, Edinburgh. Sept. 15, 1930, No. 27455. [Class 135.] In safety valves wholly or partly loaded by spring action, an expansion chamber 5 is formed between the valve 1 and seat 3 by the use of projections, one curved, thereon, and horizontal passages 2a are provided in the valve or seat in the plane of the meeting surfaces of the valve and seat, so that, during valve lift, the steam first escapes through the passages 2a and then enters the chamber 5 to effect an enhanced lift. Specification 318,457, [Class 135, Valves &c.], is referred to.
Patent GB-483231-A (GB)
Title: Improvements in or relating to apparatus or machines for filling bottles with liquids
IPC: B67C3/26
Filed: 1936-10-10
Abstract: 483,231. Bottling. SPENCER, A. B., and SPENCER, A. H. Oct. 10, 1936, No. 27525. [Class 125 (ii)] To enable a bottling-machine to be used with bottles of different heights or to reduce the distance between the bottle rest and the valve body, there is provided one or more nozzle components 3, 4, 5, Fig. 2, the adjustment being obtained by selecting the number of components employed, or alternatively by selecting in place of the built-up component a single section of the appropriate length. The components screw on to the valve body 2, Fig. 2, and the nozzle proper 8. Each bottle rest or platform 15, Fig. 4, is mounted in a tubular guide 16 attached to the body of the machine, the platform 15 carrying a tubular extension 15a which slides over the exterior of the guide 16 and the interior of the latter acting as a guide for the actuating plunger 18 ; interior extensions 15b, 15c carried by the platform afford additional support to the latter from the interior of the plunger ; a coil spring 19 is provided between the platform and the plunger. For actuating the bottle-raising mechanism, a ramp 23 engaging the lower end of the plunger 18, is provided. An oil bath 21 is fitted to the plunger.
Patent GB-1248011-A (GB)
Title: Light fixture
Inventor: MOORE BUELL
IPC: F21V29/00
Filed: 1969-05-30
Abstract: 1,248,011. Floodlamps. ESQUIRE Inc. 30 May, 1969, No. 27589/69. Heading F4R. A floodlamp comprises a housing 20 having a window 21 at one end, an arcuate reflector 23 facing the window, and a light source L, preferably a mercury vapour lamp, mounted between the window and the reflector, one end of the source being engaged with a socket 26 and the other end being supported by a holding device which includes a removable sleeve 52 adapted to engage a protuberance 27 on the source and a button 53 carried by a flexible arm 54 which can be used to support a source L<SP>1</SP> (Fig. 3A, not shown) of the type having a depression (28) in place of the protuberance 27. The sleeve and the button are both lined with heat insulating and cushioning material such as asbestos. The housing consists of two identical sections 20a releasably connected by bolts 20b and each of which has an opening 47 which is of sufficient size to allow the source L to pass and is closed by a cover 48 having a well 50 in which the socket 26 or holding device is disposed. The housing is divided into front and rear compartments by a flue 35 through which air can flow for cooling purposes, the ballast 36 and capacitor 37, which are located in the rear compartment, being further insulated from the heat generated by the source by means of a fibreglass mat 46 disposed behind the reflector 23. The reflector consists of a plurality of strips the ends of which are engaged in grooves (44, 45 Fig. 4, not shown) in the walls 24, 25 of the housing, several sets of grooves being provided so that the shape of the reflector may be changed. The housing is supported by a mast fitter 29 comprising a lower part 29a releasably secured to a mast 30 and an upper part 29b pivotally connected to the lower part and releasably secured to the bottom wall 25 of the housing by bolts 69. Sets of bolt holes are also provided on the top wall 24 and side wall 31 so that the housing can be mounted in an inverted position or on its side.
Patent GB-1505178-A (GB)
Title: Printing press centrifugal pump apparatus
IPC: B41F31/08
Filed: 1975-06-30
Abstract: 1505178 Shaft couplings ACE ENVELOPE MFG CORP 30 June 1975 [1 July 1974] 27593/75 Heading F2U In a centrifugal pump for delivering ink in a printing press the motor shaft 52 is releasablysecured to the impeller shaft 22 by a coupling 54 having aligning means, such as a spring-loaded pin 70, for positioning the impeller within a lower housing 90. The coupling comprises a sleeve 54 secured to the motor shaft 52 by a set-screw 56 and is provided at its lower end with notches 82 engageable over a pin 78 projecting through the impeller shaft 22 for transmitting the drive. The shafts are maintained in axial alignment by the pin 70 which is mounted on a leaf spring 64 fixed on the sleeve by screws 66, 68. The impeller shaft is secured to the impeller 24 by a set-screw 88. To remove the motor complete with the sleeve 54 from the impeller shaft, knurled screws 44 are withdrawn to release the grooved studs 36 which are part of the motor assembly and are held in apertures 38 in a cover plate 26, the latter being secured to the impeller housing by bolts 30.
Patent GB-426791-A (GB)
Title: Fuel injecting device for internal combustion engines
IPC: F02M53/04
Filed: 1933-10-06
Abstract: 426,791. Fuel - injectors. RITZ, F., 1263, Eaton Avenue, Beloit, Wisconsin, U.S.A. Oct. 6, 1933, No. 27615. [Class 7 (iii)] [See also Group XXVIII] A fuel-injecting device for internal-combustion engines of the type comprising a combined pump and injector which is inserted in the cylinder wall, having a tubular plunger 65 and an injector valve or needle 49 passing through the plunger which is operated by the pressure of the fuel, is characterized in that the tubular plunger 65 is rotatable and is provided with helical edges at its inner end 66 co-operating with suction ports 62, 63 for injecting variable quantities of fuel into the combustion chamber, the helical edges on the inner end of the plunger being close to the nozzle orifices 56 so that a minimum quantity of fuel is trapped under pressure. The plunger is reciprocated by a rocker arm (not shown) on the cap 77 of a cage 71 housing the plunger return spring 84, which also serves to load the injector valve 49, and is rotated by means of a projection 67 which engages in a slot 99 in a regulating-ring 94. A check valve 51 is provided around a reduced portion of the needle 49 and seats against a shoulder 53 thereof to prevent blow-back of gases into the pump chamber. The fuel is circulated through pipes 25 and 26, passages 59 and 61, and a chamber 39 surrounding the nozzle tip 42, which is cooled thereby. The pipe 27 serves to collect and take away the leakage fuel from the top of the plunger.
Patent GB-1437854-A (GB)
Title: Electrostatic printer
IPC: B41J2/415
Filed: 1974-06-21
Abstract: 1437854 Facsimile apparatus PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 21 June 1974 [26 June 1973] 27615/74 Heading H4F [Also in Division H1] A facsimile system includes means for applying a control voltage to a recording drum 15 to vary its potential with respect to a recording head 16 (see Division H1) and so enable grey tones in different gradations to be produced. An optical device 11 scanning a drum 10 applies information via a logarithmic amplifier 12 and an operational amplifier 20 having inverting (-) and non-inverting (+) inputs to a voltage or time converter 13 which applies a corresponding signal via a high-voltage amplifier 14 to the recording drum 15 which forms a counter-electrode. Synchronism of the scanning and recording is obtained by rigidly connecting the scanning and recording heads, or by electrical means. Rotational synchronism of the recording drum is obtained by an optical device 22 which scans a slotted disc (not shown) and applies pulses to the recording head 16 via a high-voltage amplifier 17. A switch 18 enables a positive or negative image to be obtained by selecting contact P or N. A switch 19 enables the control voltage to be varied in amplitude (contact u) or time (contact t) to vary the areas or charge densities of the image spots.
Patent GB-303229-A (GB)
Title: Improvements in or relating to gyroscopic compasses
IPC: G01C19/38
Filed: 1927-10-18
Abstract: 303,229. Brown, S. G. Oct. 18, 1927. Gyroscopic compasses.-To reduce the errors of a gyroscopic compass and to cause it rapidly to settle in the meridian, it is provided with means whereby it can be operated under static conditions and under gravity control conditions alter. nately. Such means comprise a torque, preferably produced by an air blast, which operates alternately about the vertical axis to annul the tilt resulting from straying of the axis of the gyroscope under static conditions, and about the horizontal axis to orient the gyroscope into the meridian under conditions of gravity control.. The air blast produced by the gyroscope. 1 is delivered through four apertures 3 opposite to openings 4, Figs. 2 and 3, in boxes 5 carried by the vertical ring 6. The openings 4 are connected by tubes 7, 8 to conduits 9, 10 also carried by the ring 6. In the upper half of the ring the openings 4 are cross-connected to the conduits as in Fig. 3; in the lower half, however, the tubes 7, 8 do not cross each other. The conduits communicate with valves 11, 12 each provided with a sleeve 13 which can be rocked about its axis and is adapted, in one position, to transfer the air from the conduits to horizontal nozzles 16. When the axis of the gyroscope is horizontal the air is distributed equally to the conduits 9, 10 and the reactions of the nozzles 16 are balanced but when a tilt occurs more air passes through one conduit than through the other and a torque is exerted about the vertical axis to annul the tilt. By turning the sleeves 13 the air can be diverted from the nozzles 16 and passed instead through nozzles 18 on to vanes 19 supported by tubular structures 20 carried by the gyro-casing 2. In this mode of operation, tilting of the gyroscope results in a torque being exerted around the horizontal axis to precess the gyroscope towards the meridian under gravity control conditions. The sleeves 13 are oonnested by links 25, 26 to the armatures 23 of electromagnets 22 which are periodically energized under the control of a clockwork-actuated switch so that the sleeves 13 occupy their two positions alternately. To avoid errors due to changes of course or speed the static condition may be maintained by manually-operated or automatic means during such changes. Specification 126,451 is referred to.
Patent GB-848162-A (GB)
Title: Apparatus for feeding a pile of fabrics or other flat flexible materials to a cutting-out table
IPC: A41H43/00
Filed: 1958-08-29
Abstract: 848,162. Feeding articles to endless conveyers. MELKA A.B. Aug. 29, 1958 [Sept. 11, 1957], No. 27813/58. Class 78 (1). Apparatus for feeding a pile 5 of textile fabric to an endless conveyer belt 10 a portion of which constitutes a cutting-out table, comprises a support 1 for the pile of fabric, which support is composed of a series of slats secured to an endless chain 2, and a clamping device 6. In operation, the pile 5 is first clamped at one end by the clamping device 6 with the support 1 in the position shown, the support 1 is then moved out from under the pile by driving one of the sprocket wheels 3, 4 carrying the chain 2, so that the pile falls on to the belt 10, and finally the clamping member 6 is disengaged from the end of the pile so that the whole pile is then deposited on the belt 10.