baber/WOPTO huggingface dataset:
Patent GB-428523-A (GB)
Title: Process for solvent manufacture from fermentation
IPC: C12P7/28
Filed: 1933-08-22
Abstract: Butyl alcohol and acetone together with small quantities of ethyl alcohol, propionic and butyric acids are produced by fermenting a sterile liquid containing a carbohydrate material, protein and water, with a strain of bacteria called Bacillus butacone.  Preferably there is employed with Bacillus butacone a culture of bacteria exhibiting symbiotic and metabiotic relationship therewith, such as Bacillus mesentericus.  Bacillus butacone may be isolated by adding small portions of humus to sterile 25 per cent potato media and incubating at about 37 DEG  C. for 48 hours.  Those tubes showing evidence of gas evolution and pronounced butyl alcohol odour are selected and set aside to allow spore formation.  After about 10 days the tubes thus selected are apportioned, a few drops from each, among several tubes containing sterile humus.  These tubes are allowed to stand for 10 days or more and then immersed in vigorously boiling water for a minimum of 45 minutes.  The foregoing procedure is repeated several times until a virulent and virile culture is obtained.  The carbohydrate used may be saccharine juices or by-products of sugar manufacture such as molasses.  The protein material may be finely divided dried meat from which most of the fats have been removed, or an animal protein mixed with vegetable protein such as commercial corn gluten.
Patent GB-1243546-A (GB)
Title: Pressure transducer with reduced temperature sensitivity
IPC: G01L23/28
Filed: 1968-12-10
Abstract: 1, 243, 546. Pressure transducers. KISTLER INSTRUMENT CORP. Dec.10, 1968 [Feb.7, 1968], No.58722/68. Heading G1N. A fluid-pressure transducer, 10, comprises a pressure-sensing invar diaphragm, 64, a ceramic heat-shield 74, 76, a Piezo-electric element 42 and temperature compensating plates 44, 46. The transducer is used to measure pressure inside an internal combustion engine where the heat-shield and an invar heat-shroud 80 protect the diaphragm from transient thermal shocks, the gas pressure being transmitted through a narrow annular passage, 78. Long-term temperature compensation is effected by selecting for the plates 44, 46, materials of which the co-efficients of thermal expansion are respectively greater and less than that along the transverse or Y-axis of the quartz crystal wafers, (110, 112, 114, 116) Fig.11, (not shown) of the Piezo-electric element. The crystals are X-cut so as to include two mutually perpendicular stress-sensitive axes, the X-axis being aligned along the longitudinal axis 150 of the transducer while the Y-axis is transverse of it. Compression along the Y-axis produces an electric charge of equal magnitude but opposite polarity to that generated by an equal compression along the X- axis. Initial pre-stressing of the Piezo-electric element is achieved by stretching an invar sleeve 40 and end-piece 50, so as to urge the element to the metal base 12, before spot-welding it at 58, 60, 62. Compensation for acceleration effects is achieved by connecting one of the crystals in seriesopposition to the others.
Patent GB-1235206-A (GB)
Title: Improvements in or relating to glass
IPC: C03C3/068
Filed: 1968-12-11
Abstract: 1,235,206. Optical glass. CARL-ZEISSSTIFTUNG, [trading as JENAER GLASWERK SCHOTT & GEN]. 11 Dec., 1968 [12 Dec., 1967], No. 58925/68. Heading C1M. An optical glass particularly for fibre optics core glasses comprises: the balance, if any, consisting of one or more other compatible constituents. The molar ratio SiO 2 : B 2 O 3  is preferably greater than 1À6: 1, and molar ratio BaO: TiO 2  preferably between 0À9: 1 and 1À4: 1. Generally for such glasses nd = 1À84 to 1À88, vd = 32-34 and a thermal expansion coefficient of more than 84 x 10<SP>-7‹</SP> C. in the range 25-400‹ C.
Patent GB-1418308-A (GB)
Title: Gas discharge display devices
IPC: G09G3/291
Filed: 1972-12-21
Abstract: 1418308 Matrix displays and circuits therefor FUJITSU Ltd 21 Dec 1972 [23 Dec 1971] 59251/72 Heading G5C A display/memory type gas discharge panel with crossed conductor arrays comprises continuously operated primary cells. Operating circuitry includes a power source 2, impedance groups 3, 4, 15, 18, input register 16 and write and erase pulse generators 10, 11. The source 2 generates priming and sustain potentials V G , V S  whose magnitudes are such that V G  + V S  is greater than the firing potential whereby all the outer priming cells are fired. In another embodiment sustain pulses are applied sequentially to the arrays and between them in phase priming pulses are applied to conductors X o , X n , Y o , Y n , thereby producing pairs of priming discharges. The phase and magnitude of the sustain pulses may be arranged to fire priming cells but provide only sustain pulses elsewhere. Additional auxiliary priming cells may be provided within large panels. These are energized before a new display is written in the adjacent area. The duration of write and erase pulses may be different to that of sustain pulses.
Patent GB-1458028-A (GB)
Title: Preparation for use as a correcting agent
IPC: G03F7/00
Filed: 1973-12-21
Abstract: 1458028 Correcting printing plates HOECHST AG 21 Dec 1973 [29 Dec 1972] 59638/73 Heading G2M A preparation for correcting printing plates comprises 10-30 wt. per cent of 2-methoxy- and/or 2-ethoxy-ethanol, 10-30% of methyl isobutyl ketone, ethyl isobutyl ketone and/or 2,4-dimethyl pentanone-3, 5-20% of dimethyl sulphoxide, 10-20% of benzyl alcohol, 8À5-17% H 3 PO 4 , 1À5- 10% H 2 O, 0-10% glycerol, 0-20% finely divided silica and 0-0À1% dyestuff. The preparations are particularly for use with offset plates prepared from diazo, azido and photocurable compounds, e.g. o-napthoquinone diazides, polyvinyl cinnamate or iminoquinone diazides.
Patent GB-1455278-A (GB)
Title: Automatically ranged active television system
IPC: G01S17/18
Filed: 1973-12-21
Abstract: 1455278 Active range gated television system GENERAL ELECTRIC CO 21 Dec 1973 [21 Dec 1972] 59660/73 Heading H4D An automatically ranged, range gated active television system comprises a pulsed transmitter, e.g. a laser, and a gated television camera which is enabled when the range delay switch is such that the whole field of view of the camera is illuminated by the laser, by means of a closed loop control system which adjusts the length of the delay between the laser enable pulse and the camera enable pulse so that a raster produced by the camera is evenly illuminated over its top half and its bottom half. An aircraft 1 carrying an active television system 2 has a field of view 3, and is adjusted to have a range gate 5. As the range changes, due, e.g. to change in ground or aircraft elevation, so that the illuminated area of the ground becomes within limits 7, the television camera 22 (Fig. 2) only receives a partly illuminated view, so that part of the signal displayed at 26, which may be a television monitor, will be video black level. The range delay between the transmitter pulse and receiver gating pulse may then be adjusted manually as at 35, which adjusts a control voltage fed to pulse width modulator 30. Monostable 32 is enabled by a positive pulse edge from modulator 30, and switches on laser 30 for a pulse length period corresponding to the required depth of field. Monostable 31 which gates camera 22, comprising lens 23, image intensifier 24 and vidicon tube 25, is enabled by a negative going pulse cage, after the range delay set on the modulator 30 has elapsed. When switch 36 is closed in a second position (Fig. 2) the control system according to the invention operates. Switching unit 38 receives the output signal from the camera tube 25 and is synchronized to the camera and monitor sweep generator 45. Preferably, switch 38 outputs at 42, the upper half of a raster field and at 43 the lower half of the raster field. These signals are subtracted at 44 and the so-produced error signal is integrated at 46. The pulse modulator thereby is fed a control voltage of polarity such that the range delay is increased or decreased so that the whole camera field of view is illuminated by the laser pulse.
Patent GB-1274478-A (GB)
Title: Process and apparatus for the production of fibrillated material
Inventor: GABELLIERI RODOLFO
IPC: C08F6/00
Filed: 1969-12-09
Abstract: 1,274,478. Polymerisation apparatus. SOLVAY & CIE. 9 Dec., 1969 [13 Dec., 1968], No. 60067/69. Heading B1X. [Also in Division C3] Apparatus for the production of fibrillated polyethylene comprises reactor 1 provided with a stirrer, one or more inlets 2, 3, 4 for feeding ethylene, catalyst and diluent, a gas-removing enclosure 6 also having a stirrer and connected to reactor I by a channel which has an expansion valve 5, heating means for heating the suspension of polymer after removal of gas therefrom, the heating means comprising polymer liquefying vat 9 and/or heat exchanger 13, and being connected to the gas-removing enclosure 6 by a channel, extrusion means 15 fed from the heating means and extruding into enclosure 18 for instantaneously vaporizing the diluent, the product then leaving at 20, and optionally filtration means 14, and pressure control means 16, 17.
Patent GB-1450430-A (GB)
Title: Semiconductor light ray deflector method of making foundry moulds and apparatus therefor
IPC: G02F1/29
Filed: 1973-12-28
Abstract: 1450430 Controlling light RCA CORPORATION 28 Dec 1973 [19 Jan 1973]  60110/73 Heading G2F Electrodes are disposed on both regions of a P-N junction formed in a transparent semiconductor body, and on opposite sides of an optical path through the body, so that a current flowing between the electrodes produces a region of excess free carriers with a boundary inclined to the optical path, whereby the light is deflected by virtue of the refractive index charge at the boundary. Control of the boundary shape may be by selective addressing of electrodes on the P and/or N regions, and/or by controlling the current amplitude. The deflection across the width of a beam may be used in deflecting, focusing or defocusing the beam. In devices not forming part of the invention, holeelectron pairs may be created by optical or electron beam illumination, e.g. via a shaped mask or using a shaped illumination source, for similarly refracting a light beam. The block may be of GaAs. The light should have a wavelength longer than the absorption edge of the semi-conductor.
Patent GB-1213549-A (GB)
Title: Electrical systems of internal combustion engine-driven vehicles
IPC: H02J7/14
Filed: 1968-12-18
Abstract: 1,213,549. Electrical systems for automotive vehicles. DR.-ING. H. C. F. PORSCHE K.G. 18 Dec., 1968 [20 Dec., 1967], No. 60180/68. Heading H2H. The rear window 1 of a motor vehicle is heated by means of two heating elements 2, 3 supplied from an electrical source 11 comprising the battery 13 and generator 12 of the vehicle, switching means being provided whereby the heating element 3 only is energized should the voltage of the source 11 fall below a predetermined value. A two-position manually operated switch 15 may be moved to a first position wherein contacts 18, 19 are connected to energize a relay 24 thus closing contact 25 to supply the heating element 3. Further movement of the switch 15 interconnects contacts 20, 21, 22 whereby a relay 32 is also energized to operate contact 28 to open contact 29 and close contacts 30, 31 thus energizing both heating elements 2, 3. The relay 32 is designed to be voltage responsive whereupon should the voltage of the source 11 fall the relay drops out to remake contact 29 such that the element 3 only is energized.
Patent GB-1308715-A (GB)
Title: Signal frequency generators
IPC: H03C3/00
Filed: 1970-12-18
Abstract: 1308715 Sweep frequency signal generators SIEMENS AG 18 Dec 1970 [22 Dec 1969] 60351/70 Heading H3R A sweep oscillator comprises a frequency synthesizer with sweep generated by a counter controlled from a pulse generator. Digital frequency synthesizer 1 produces an output frequency f a  determined by the inputs on digital control lines E 0 -E 6  which are energized by corresponding pulses from outputs A 0 -A 6  of counter 2: a pulse shaper 16 may be interposed so that successive pulses overlap in time. Counter 2, which may comprise a series cascade of bistable trigger stages with feedback to give a digital output, is driven by pulses 3 from pulse generator 4, via gate 5. If the frequency f a  is to be effected between upper and lower limits the corresponding start and stop numbers are set on counter 2, starting being effected by a control signal A s  on line 10 from programme controller 9. Stopping is effected by means of digital comparator 6 which receives a stop number signal from programme controller 9 which is compared with the outputs A 0 -A 6  and when equality is reached produces a stop signal E s  which closes gate 5. For wobbulator action a control device 7 is provided which derives a signal from stop command signal E s  to close gate circuit 5 via line 5<SP>1</SP>, also emits a signal A s  setting counter 2 back to the predetermined start number, and then produces a delayed signal via line 5<SP>1</SP> to re-open the gate 5. The repetition frequency f z  of pulses 3 produced by the pulse generator 4 may be set via a control line 8 from programme controller 9: f z  may be varied in accordance with a chosen time function. Control device 7 can also be used to drive display devices or printers: e.g. the start signal can trigger the x-deflection of a printer or oscilloscope via output line 13, the stop signal being emitted via line 14 to terminate the deflection. The sweeping speed may be changed during the progress of a sweep by means of a control signal derived from line 8<SP>1</SP>, this control signal being also applied to the control device 7 to produce on line 15 a corresponding control signal switching over the deflection speeds in a display device or printer. The x-deflection for a display device or printer may alternatively be derived from the outputs A 0 -A 6  or inputs E 0 -E 6  via a digital to analogue converter.
Patent GB-1356920-A (GB)
Title: Automatic viscometer
IPC: G01N11/12
Filed: 1970-12-31
Abstract: 1356920 Viscosity meter BP CHEMICALS Ltd 2 Feb 1972 [31 Dec 1970] 62090/70 Heading G4H [Also in Division G1] In apparatus for measuring the viscosity of a fluid in a test tube 1 (Fig. 1), a sphere is dropped into the tube and the time taken for it to travel a predetermined distance at its terminal velocity is measured digitally. The test tube is situated in a water bath 2 to maintain the apparatus at a constant temperature. As described two parallel light beams are derived from a source 3 by light fibres 4, 5, lens 8, 9, and slits 10, 11, light detectors 14, 13 at right angles to the beam receiving reflected light as the sphere intersects the beam. Pulses from a generator are counted in a binary coded decimal counter for the time interval between the output from the upper detector and the output from a lower detector, the count being decoded and printed under the control of circuitry receiving the light detector outputs. The control circuitry also operates the release mechanism of a ball dropper.
Patent GB-2000220-A (GB)
Title: Device for locking a slider of a slide fastener
IPC: A44B19/30
Filed: 1978-06-19
Abstract: A device for locking a slide fastener when it is in the closed state is proposed with which the slide fastener can be securedly locked with reliability to prevent spontaneous unfastening but still can be unlocked with ease and convenience when the slide fastener is to be opened. The device is composed of a cranked pull tab 1 engaged to the sliders consisting of a lower flat 1a, an upper flat 1c serving as a handle for grasping with fingers and a riser connecting them 1b, the pull tab being provided with an aperture 4,and a top stop 6 with a protrusion 7 to be inserted into the aperture 4 of the pull tab when the slide fastener is to be locked and a means for interlocking the protrusion to the pull tab when the protrusion is inserted into the aperture e.g. a locking pin passing through a hole 10 in the protrusion 7. <IMAGE>
Patent GB-2003913-A (GB)
Title: Particulate detergent compositions containing alkali metal carbonate and bicarbonate
IPC: C10G35/12
Filed: 1978-09-04
Abstract: Free flowing phosphate-free particulate detergent compositions suitable for heavy duty laundering, have a bulk density of at least 0.6 g/ml and particle sizes in the 4 to 120 mesh (U.S.) range and comprise particles of alkali metal carbonate and alkali metal bicarbonate containing a normally liquid or pasty nonionic detergent. The compositions may be prepared by spray-drying.
Patent GB-2029821-A (GB)
Title: Process for the preparation of glycerol dichlorohydrins
IPC: C07C29/66
Filed: 1978-09-15
Abstract: Process for the preparation of glycerol dichlorohydrins by reacting allyl chloride and chlorine in an aqueous medium. An aqueous emulsion of allyl chloride in a water/allyl chloride weight ratio of at least 25:1 is continuously delivered to a tubular reactor, together with gaseous chlorine in a molar quantity not exceeding that of allyl chloride fed in, and reacted therein with said chlorine under adiabatic conditions, maintaining an inlet temperature of 10-50 DEG C, a residence time of at least 15 seconds and a linear velocity of the reagent mixture of at least 0.5 m/sec.
Patent GB-2005509-A (GB)
Title: Eliminating boresight error of an aerial due to refraction through an associated radome
IPC: H01Q1/42
Filed: 1978-10-04
Abstract: The boresight error and boresight error rates in an aerial system shrouded by a radome is eliminated by measuring and storing errors of refraction induced by the radome during a test phase and subsequently making use of the stored values representing the errors in conjunction with actual values of the aerial position to determine the true direction of a target from an apparent direction as seen by the aerial.
Patent GB-2012809-A (GB)
Title: Simultaneous Deasphalting- Extracting Process
IPC: C10G21/20
Filed: 1978-10-31
Abstract: A process for the simultaneous deasphalting and solvent extraction of an asphalt-containing mineral oil is performed by contacting the oil with a solvent comprising N-methyl-2- pyrrolidone (NMP) containing from 0-5 LV% water and a light hydrocarbon in a combination zone (12) to produce a raffinate and extract phase, with the raffinate phase containing the desired oil, most of the hydrocarbon solvent and some NMP. The raffinate is then passed to a reduced pressure flash zone (28) to remove most of the hydrocarbon solvent therefrom. The remaining raffinate oil and NMP solution is then chilled (e.g. in cooler 34) to produce bulk liquid-liquid immisicibility between the oil and NMP. The chilled oil and NMP are then passed to a settling zone (38) wherein an NMP- rich phase is separated from an oil- rich phase and recycled back into the combination zone (12). <IMAGE>
Patent GB-2008706-A (GB)
Title: Safety Device for Fixing Nuts on Vehicle Wheels
IPC: B60B3/16
Filed: 1978-11-24
Abstract: A safety device for fixing vehicle wheels 1, 2 on studs 4, 5 of a brake drum 3 consists of at least one elastic metal plate 8 drilled with at least two holes 9, 10 which enable it to be mounted on at least two studs, the plate being flexible between the holes, so that the tightening of the nuts 6, 7 cooperating with the studs causes the plate to bend, and act as a spring washer. One nut 7 may be captive in the plate 8. The device may comprise two curved plates riveted together back-to-back. The device may be a complete ring with a series of stud holes. <IMAGE>
Patent GB-2018941-A (GB)
Title: Energy-absorbing bumper assembly
IPC: B60R19/18
Filed: 1979-03-02
Abstract: An elongated energy-absorbing bumper assembly comprises a member formed from energy-absorbing elastomeric material (12) extending between a rear mounting surface (14) and a front impact surface (16) with the material defining a hollow recess (18) extending thereinto from the rear mounting surface and positioned between the ends of the assembly. A structural member (22) extends between block-like end portions (20) of the elastomeric material member with the ends (24) of the structural member embedded in the elastomeric material. The elastomeric material provides the sole support and means of positioning the structural member so that the structural member is allowed unguided movement with the elastomeric material in multiple directions upon impact. The elastomeric material may comprise a polyurethane foam. <IMAGE>
Patent GB-2018442-A (GB)
Title: Micro-film units using prisms
IPC: G03B27/52
Filed: 1979-03-09
Abstract: A micro-film unit, especially for safe-guarding information during automatic document processing by recording the content of documents, where high transport speed and filming of the documents 11 whilst moving in direction 10 necessitate a high illumination strength such as is offered only by light sources involving a high heat dissipation. In order to achieve adequate spacing between the light source 81 and the recording station within a small overall volume a prismatic body 7 is provided to link a conveyor belt camera 92, 93 plane and recording plane, being interposed into the beam path at the recording station. The prismatic body 7 consists of a generally flat plate with a narrow edge adjacent the document 11 to be reproduced, and is provided with a reflective base surface 71 to direct light from the entry surface to a recording window and direct reflected light to an outlet window. The latter two windows divide the edge of the plate that is remote from the reflective base surface 71 into two unequal sections, to achieve maximum illumination and output. The micro-film unit can be used as an integral component of a document sorting, processing or read-out apparatus. <IMAGE>
Patent GB-2022510-A (GB)
Title: Manufacturing layered articles
IPC: B32B7/022
Filed: 1979-05-01
Abstract: Manufacturing a layered article by adhering together at the base member/foam sheet interface a base member (4) to which adhesive (5) has been applied and a previously prepared laminated sheet (3) consisting of a cover sheet (1) and a foam sheet (2). The layered article produced, in which the foam sheet (2) is between the cover sheet (1) and the base member (4), can be a motor vehicle instrument panel. The laminated sheet (3) can be initially prepared as a flat sheet which is placed between dies (A,B) with the already-shaped base member (4) whereafter pressure is applied to bring the laminated sheet (3) and the base member (4) into full surface- to-surface contact. Alternatively the laminated sheet (3) can be preformed to a desired shape before being placed between the dies (A,B). A need for effecting a foam expansion moulding operation is avoided. <IMAGE>
Patent GB-2031486-A (GB)
Title: A railway clip-applying machine
IPC: E01B29/24
Filed: 1979-06-04
Abstract: A machine for simultaneously inserting a pair of clips 80 into sockets 77 on a tie 75 at opposite sides of a rail comprises, a head 30 positionable at a predetermined location relative to the tie and rail, a pair of arms 100, 101 pivotally mounted on said head for rotation in planes which extend parallel to the rail and with one plane at each side of the rail, a clip-engaging member on each of the arms, and power structure for simultaneously pivoting both of the arms between a raised retracted position and a lowered position to drive the two clips to fully-seated position. The head 30 includes vertical tubes 38 which engage guide rollers 45 on a wheeled frame 10 and which carry rail-locators 60, 61. The head 30 is lowered by chain 31 to seat on blocks 49, 50. Upward thrust during clip-driving is resisted by cylinders 150, 151. <IMAGE>