baber/WOPTO huggingface dataset:
Patent GB-1331624-A (GB)
Title: Silica gel
IPC: C01B33/16
Filed: 1970-12-17
Abstract: 1331624 Silica gel DYNAMIT NOBEL AG 17 Dec 1970 [18 Dec 1969] 60087/70 Heading C1A A homogeneous silica gel is made by stirring a methyl or ethyl silicate, or a polyethyl or polymethyl silicate, with 77-105% of the water stoichiometrically necessary for hydrolysis, and separating and drying the gel. The water may be added all at once or in several stages. If less than the stoichiometric amount is used, the resulting gels contain 3-20 wt. per cent of alkoxy groups. The hydrolysis may be carried out in presence of 5-100 volume per cent methanol or ethanol, and/or in the presence of 0À01-2À0 mol. per cent of an acidic or basic hydrolysis activator. This may be an acid e.g. sulphuric, hydrochloric, phosphoric, acetic or formic acid; a silicon or transition metal aoylate e.g. silicon tetraformate, amine-transition metal compounds; alkali metal hydroxides, carbonates or alcoholates; amines, silylamines, silylazanes or ammonia. A complex that forms a base under the reaction conditions may be used. In one embodiment, gels containing transition metal oxides are made by using silicic acid esters mixed with transition metal oxides and/or alcoholates, e.g. 0À1-30 mol. per cent, the final gel containing 0À1-25 wt. per cent oxide. Also, hydrophilic gels are made by adding Al alcoholates or Al 2 O 3  to the hydrolysis mixture. The hydrolysis may be carried out in one stage, or, when an activator is used, in two stages. In the 1-stage process, the reactants may be stirred for 0À5-4 hours with heating to e.g. 30-80‹ C. In the 2-stage process, a sol. formed by stirring all the reactants except the activator, preferably heating to the boiling point of the alcohol used, is converted to gel by continuing heating and stirring for 10 mins. to 4 hours, after addition of the activator the gel may be separated by distillation of liquids from the hydrolysis vessel, heating the gel at 200-270‹ C., and then reducing the pressure on the gel, which may then be ftuther dried in a fluidized bed or drying tunnel. In Examples, ammonia, hexamethoxydisilylazane, trimethoxy-γ-aminopropyl silane, NaOH, sodium methylate, and formic acid are used as hydrolysis activators, and gels containing Al 2 O 3 , MgO, Fe 2 O 3  or TiO 2  are obtained. Their surface area is about 600-900 m<SP>2</SP>/g when no hydrolysis activator is used, about 400-1000 m<SP>2</SP>/g using a basic activator, and 50-400 m<SP>2</SP>/g using an acid activator.
Patent GB-1282807-A (GB)
Title: Electric switch with unitary housing
Inventor: LOOSE W
IPC: H01H19/635
Filed: 1970-12-18
Abstract: 1282807 Mechanical switches; actuators AMP Inc 18 Dec 1970 [12 Jan 1970] 60374/70 Heading HlN A pivoted actuator 25, Fig. 4, for an electric switch has arcuate projections 37 on opposite sides for snap-fitting into position in a rectangular section aperture 24 of a housing 15, the aperture having flexible side walls 33 with corresponding arcuate shoulders 35. The actuator 25 pivots by sliding engagement between the arcuate members 35, 37 and is located by arcuate recesses 32, Fig. 3, in the other pair of side walls 27 of the aperture 24 which engage arcuate portions 41 of the actuator 25. The switch assembly is clipped on a printed-circuit board 12 engageable by spring plate contacts 50 with bent over resilient contact portions 51, and mounted on a slider 47 having a recess 46 engaged by a headed end 45 of the actuator 25. The slider 47 is urged towards its central position by return coil springs 62 but is located in each of its two non-stable opposite actuated positions by spring loaded detent balls 57 engaging recesses 53 in the contact slider 52.
Patent GB-1263826-A (GB)
Title: Hydrostatic transmission control for vehicles
Inventor: HAFFNER DONALD G
IPC: B60K17/10
Filed: 1969-12-15
Abstract: 1,263,826. Change-speed control. JACOBSEN MFG. CO. 15 Dec., 1969 [3 Jan., 1969], No. 60995/69. Heading F2D. In an infinitely variable ratio hydrostatic transmission for tractors, controlled by a pedal formed as a plate 37 pivoted at 41 by an operator's foot so that the pedal may be depressed or raised, to vary the displacement of a pump 12 via a control rod 14 and lever 13, to increase the gear ratio in forward or reverse, the lever 13 has an extension 51 which is engaged by opposed tension springs 18, 19 constantly urging the control members to the neutral position. The arrangement is such that the spring 19 additionally forms a stop limiting maximum reverse ratio speed (Fig. 2) whilst one adjustable bolt 47 (Fig. 4) limits maximum forward ratio speed. The lever extension 51 has an adjusting slot 54 and locknut 53 for adjusting the spring loading to accurately determine the neutral setting. In Fig. 5, a single compression spring 76 replaces the opposed tension springs 18, 19 and is arranged between adjustable sleeves 72, 73 on a rod 63 connected to the lever 13, the sleeves 72, 73 being located between spaced plates 69, 71 of a fixed rod 66, the caged spring arrangement constantly urging the control lever 13 to the neutral position.
Patent GB-1333017-A (GB)
Title: Practice ammunition
IPC: F42B8/16
Filed: 1971-12-31
Abstract: 1333017 Practice projectiles AAI CORP 31 Dec 1971 [31 Dec 1970] 61020/71 Heading F3A A practice projectile for firing from smooth or rifled bore weapons comprises a hollow shell 23 containing a mass of particulate, high density material 24 which, on firing, is compacted towards the rear under the action of setback forces and radially expands and stresses the shell such that it fragments when the projectile leaves the muzzle of the weapon. Fragmentation may be assisted by the spin arising from a driving band 25 and by the helical groove cut into the shell by rifling 43a. A closure plug 29, spin welded on to the shell, functions as a gas obturator. The shell 23 is formed of nylon, polyethylene or polystryene. The material 24 consists of lead, iron, steel, tungsten, copper or brass particles predominately within the range of 0À012 to 0À033 inch in diameter.
Patent GB-1207549-A (GB)
Title: Method and apparatus for the manufacture of a fancy yarn
IPC: D02G3/34
Filed: 1968-12-23
Abstract: 1,207,549. Effect yarn. MOULINAGE ET RETORDERIE DE CHAVANOZ. 23 Dec, 1968 [28 Dec., 1967; 22 Nov., 1968 (2)], No. 61184/68. Headings DID and D1W. [Also in Division F2] An effect yarn is made by wrapping an effect yarn 6 around a core yarn 1 to form an intermediate yarn assembly, wrapping a binding thread 11 therearound, and winding the finished yarn 13 at constant velocity. The velocity of the intermediate yarn can be varied by winding it on a storage device 17 which permits continuous variation in the amount of yarn stored. This variation can be achieved inter alia by rotation of a yarn guide around a roller or sets of rollers over which the yarn passes (Figs. 2 to 7 not shown). The rate of rotation of this yarn guide may be controlled by a programming device acting on clutches and a variable speed motor (Figs. 8 and 9 not shown).
Patent GB-1235059-A (GB)
Title: Improvements in or relating to telecommunications systems
IPC: H04B3/23
Filed: 1969-12-17
Abstract: 1,235,059. Echo suppressors. SIEMENS A.G. 17 Dec., 1969 [20 Dec., 1968], No. 61409/69. Heading H4R. An echo suppressor for a transmission system includes a normally inoperative non-linear echo suppressor 1 which is brought into operation when a second echo suppressor 2, which operates by subtracting from the signals in the send path S, a synthesized echo derived by a transversal filter 12 from the signals in the receive path E, is inadequate to cope with the echo being produced. As described the transversal filter has its tap multipliers adjusted by a control unit 11 which correlates the signals in the send and receive paths. If the echo detected by the control unit 11 is inadequately suppressed by the suppressor 2 the non-linear suppressor 1 is activated. The suppressor 1 compares the signals in the two paths and either opens gate 9 in the transmit path if the receive signal predominates or switches in a variable attenuator 8 which compresses signals in the receive path if the transmit signal predominates.
Patent GB-2004458-A (GB)
Title: Vehicle lamp wiper
IPC: B60S1/52
Filed: 1978-09-02
Abstract: A vehicle headlamp wiper includes a relatively rigid support 10 and a flexible wall 13 joined to the support so as to define a chamber. A liquid inlet to the chamber is provided in the support. Outlets are provided through a surface of the flexible wall which is opposite the headlamp lens. A multiplicity of scrubbing or scouring elements, e.g. loops 19 of plastics, stiff bristles or abrasive particles, are anchored to the flexible wall and engage the headlamp lens. When liquid fills the chamber the wiper can conform to curvature of the headlamp lens by deformation of the flexible wall and even caked-on dirt on the lens can be removed because of the provision of the scrubbing or scouring elements. <IMAGE>
Patent GB-2004238-A (GB)
Title: Remote-controlled rear-view mirror adjusting device
IPC: B60R1/072
Filed: 1978-09-15
Abstract: A motor-operated device adjusts a rear-view mirror by means of a single remote-controlled electric motor (15), the mirror (2) being pivotable about at least two angularly offset swivel axes (5, 6) and articulated to two adjusting rods (7, 8) which are screwable for axial displacement in respective fixed, rotatably journalled adjusting wheels (9, 10). A drive shaft (13) coupled to the reversible electric motor, is selectively engageable with one of the adjusting wheels (9, 10) by means of a coupling means 14 formed by coupling elements which are automatically engaged by forward or reverse running of the motor or are engaged electro-magnetically, which displaces the drive shaft such that only one adjusting wheel is driven by the drive shaft at any given time. <IMAGE>
Patent GB-2031940-A (GB)
Title: Cleaning and deoiling of textile materials using perchloroethylene
IPC: C11D3/00
Filed: 1978-11-02
Abstract: Method of anti-stain redeposition of stains on textiles in natural, synthetic, or artificial fibres or their mixtures, during operations of dry cleaning or de-oiling by means of stabilised perchloroethylene. It is characterised by the fact that to this perchloroethylene is incorporated a sufficient quantity of one or more than one nitrile chosen in the groups of those whose boiling point is less than or equal to 130`C and of those forming with perchloroethylene an azeotrope whose boiling point is lower than 130`C, in order to obtain an anti-greying effect. Application of this method to textile materials, for example in cotton, wool, polyester, polyacrylonitrile or polyamide.
Patent GB-2033590-A (GB)
Title: Method and apparatus for bale weight control
IPC: G01G17/02
Filed: 1978-11-10
Abstract: The total weight of fibrous material delivered to a packaging device is controlled to provide more uniform package weight in accordance with a method and through the use of an apparatus in which material is successively accumulated into batches, each being a fractional portion of a desired package weight. Batches are accumulated and released as the actual weight of each delivered batch is determined and registered and the registered actual weights of the successive batches are totaled. The weight of at least certain batches in the succession is then adjusted to control the total weight. A weigh container 12 having an inlet 14 and an outlet 15 is interposed between and operatively communicates with a source of supply of fibrous material, such as a tow cutter, and a packaging device, such as a baling press 11. A load cell 18 is provided which signals the weight of material supported by the weigh container. <IMAGE>
Patent GB-2010335-A (GB)
Title: Improvements Relating to Vacuum Deposition Chamber
IPC: C30B23/04
Filed: 1978-11-23
Abstract: A movable support for work pieces such as silicon wafers includes a circular metal table with a series of upstanding cylindrical support columns 12. Each column 12, has a diameter somewhat smaller than the designed diameter of each wafer 13 to be supported by the columns 12. The table 10 is mounted on a rotary shaft 14, which passes through a rotary air tight seal 15 in the bottom of a vacuum chamber. The wafers 13 overhang the edges of the columns 12 and so prevent deposition of vapour in the vacuum chamber occurring on the support surfaces of the columns 12. The vacuum chamber is attached to a vacuum lock through which wafers 13 can be introduced on to the table 10. <IMAGE>
Patent GB-2010521-A (GB)
Title: Fibre Optic Connectors
IPC: G02B6/38
Filed: 1978-12-21
Abstract: The invention relates to optical fibre connectors and provides a mechanism for accurately aligning fibres to close lateral and angular tolerances. The connector (10) has a through-bore (14) with a convergent region (15). The fibre assembly (16) is aligned within the connector (10) by means of spacer spheres (17) which space the fibre assembly (16) concentrically within the convergent region (15). An insert sleeve (18) retained in the connector (10) by means of a screw end cap (13) serves to urge the spacer spheres (17) into contact with the inner peripheral surface of the convergent region (15) and hence gripping relationship with the fibre assembly (16). A modified connector substitutes one of the electronic devices for one of the fibres. <IMAGE>
Patent GB-2016761-A (GB)
Title: Input/Output Off-Line Processor for Digital Systems
IPC: G06F13/00
Filed: 1979-02-19
Abstract: Apparatus (21) off-line to a digital data processing system for controlling data flow between system memory devices and input/output devices comprises an I/O file (PROM) (44) addressed by a counter (42). An I/O sequencer (46) is a state counter and controls an output decoder (48) formed by PROM's which provides control signals to controlled devices on conductor (51) and further control signals on conductors (52, 54, 56), a multiplexor (50) receiving the control signal on conductor (52) and direct memory access acknowledge, I/O device ready, and automatic advance signals on conductors (58, 60, 62). <IMAGE>
Patent GB-2016736-A (GB)
Title: Contact lens having one or more lugs
IPC: G02C7/04
Filed: 1979-03-20
Abstract: A corneal lens 6 has a substantially circular optical correction zone and one or more lugs 8 to 11 extending therefrom for engagement with depressions on the sclera of the eyeball 1 existing between the four ocular muscles 2 to 5 attached thereto. <IMAGE>
Patent GB-2026812-A (GB)
Title: Power supply arrangement for computerised tomographic apparatus
IPC: A61B6/00
Filed: 1979-06-01
Abstract: In a rotating tomographic scanner it is possible to transfer the X- ray tube supply via slip rings. It is difficult to transfer high voltage for the tube by slip rings, yet if the mains supply is transferred the transformers required to give 70KV are excessively heavy for the gantry. It is proposed to transfer the power at 300V, high frequency and then to convert to 70KV on the gantry. The equipment then mounted on the gantry is evenly distributed there-around so that no further counterweight is required. A closed circuit oil cooling system is also provided on the gantry. <IMAGE>
Patent GB-2029366-A (GB)
Title: Trucks for Material such as Grass or Hay
IPC: A01D90/04
Filed: 1979-08-10
Abstract: A truck for material, such as grass or hay, has a loading device comprising conveyor prongs (4) guided by cam discs (12), (13) which extend into a conveying channel (3). The prongs (4) are arranged in a plurality of rows and in each row of prongs, one group (6) of prongs is angularly offset by a small angle relative to another group (7) of prongs. <IMAGE>
Patent GB-2030845-A (GB)
Title: Beverage and liquified food belt
IPC: A41F9/00
Filed: 1979-08-28
Abstract: A belt for carrying beverages and liquified food comprises a flexible hollow tube 12, a removable clip 15 at one end and a removable cap 14 to seal the liquid therein, fastening means 16a, 16b being provided to attach one end of the belt to the other. <IMAGE>
Patent GB-2033830-A (GB)
Title: Process for producing polyacrylonitrile reverse osmotic membranes
IPC: B29C67/20
Filed: 1979-10-22
Abstract: Processes for producing asymmetric polyacrylonitrile membranes for use in reverse osmosis comprise dissolving an acrylonitrile polymer in formamide (FA) containing dimethyl- formamide (DMF); shaping the solution while maintaining its temperature above the gellation point; removing the solvent from the shaped product; heating the thus-obtained membrane at 50-120 DEG C and subjecting it to a plasma treatment. In a first process the solvent is removed by treating one surface of the membrane at a temperature below 15 DEG C with an aqueous solution containing at least 10 weight % of a water- soluble solvent compatible with FA/ DMF. In a second process the solvent is removed by treatment with an inert atmosphere and then at a temperature below 40 DEG C with an aqueous solution containing 0-10% of a water soluble solvent compatible with FA/DMF.
Patent GB-2038107-A (GB)
Title: Anchoring the end of a spiral spring in an electric low-power machine
IPC: H01R39/40
Filed: 1979-12-21
Abstract: The outer end of a pre-tensioned spiral spring (24) presses against a carbon brush and the inner end is introduced into an open ended slot (22) in a projection (18). The slot is deeper than the width of the inner end of the spring and is provided with an undercut (38) so that the inner end of the spiral spring moves under a hook-like extension and is secured against accidental release from the slot, in the axial direction. <IMAGE>
Patent GB-2043016-A (GB)
Title: A method and an apparatus for arranging articles
IPC: B65G47/51
Filed: 1980-01-21
Abstract: In a method and apparatus for arranging articles which are supplied with random interspace in a plurality of adjacently disposed rows to a collecting station 13, the articles in each row in the collecting station are collected together to form a group of predetermined length and, each time when such a group of articles of predetermined length is formed, it is discharged towards a packaging station or intermediate station by means of a transfer device, e.g. a gripper device 14, movable between such station and the collecting station. <IMAGE>
Patent GB-2051296-A (GB)
Title: A pressure hose line
IPC: F16L1/028
Filed: 1980-05-22
Abstract: The task underlying the invention is to eliminate, in underground pressure hose lines, the necessity of absorbing the internal pressure by means of the appropriate dimensioning of the wall thickness. According to the invention, there is installed underground a pressure hose line wherein the strength of the highly expansible hose material is less than is necessary at the pressure applied, and the high pressure in the hose line is absorbed by the earth. The invention is mainly used in agricultural irrigation plants. A cover plate may be placed between the hose and earth located thereabove. Plants may be provided to increase the resistance of the earth. <IMAGE>
Patent GB-2077177-A (GB)
Title: Cups of deformable material
IPC: B29C67/00
Filed: 1980-05-29
Abstract: A cup of deformable material comprises a bottom wall and a sidewall extending generally upwards and outwards from the bottom wall, the cup including lower, external and upper, internal retaining means (7, 6) which, when an upper and a lower cup, in upright attitude, are in nesting engagement, cooperate to resist separation of the cups, but permit the cups to be separated by external forces. The cup (Fig. 1) is formed without one at least of the retaining means, and thereafter the absent retaining means (Fig. 2) is produced by local application of heat and force (at 4) to the sidewall of the cup. <IMAGE>
Patent GB-2053536-A (GB)
Title: Computer Terminal
IPC: G09G5/22
Filed: 1980-06-25
Abstract: A low-cost computer terminal comprises a microprocessor 14 which monitors a modem 10 and a parallel port 11 for communicating with other data processing means, and a data entry and control keyboard 12. The microprocessor program is stored in EROM 18, and incoming data for display is stored in RAM 25. Display is by a standard T.V. set. Horizontal scan counter 22 and vertical scan counter 26 control the scan, suitable count ranges being decoded to give horizontal and vertical sync signals and left and right margins. The counters 22 and 26 also read out the characters from RAM 25 for display; the output characters are converted into visual form by ROM 33 (for alphanumeric characters) and PROM 34 (for graphics option). Each character is displayed as a 9 x 16 dot matrix; the matrix is divided into 2 x 3 areas for the graphics option. <IMAGE>
Patent GB-2085034-A (GB)
Title: Treatment of Alloy Steels
IPC: C21D8/10
Filed: 1980-10-14
Abstract: A treatment of a heat exchanger to reduce corrosion of alloy steel heat exchange tubes, the treatment comprising shot peening or grit blasting the bores of the tubes, heat treating to produce a fine grain structure and exposing the bores of the tubes to moist hydrogen during stress relieving heat treatment.
Patent GB-2072322-A (GB)
Title: Cooling device for mining machines
IPC: F01P5/02
Filed: 1981-02-04
Abstract: A cooling device comprises an inlet 24 for liquid coolant to be cooled, an outlet 20 for cooled coolant, a coolant reservoir and an electrically driven motor 21 arranged to drive both a cooling fan 22 and a pump 17, the pump 17 being arranged so that, in use, it pumps coolant from said inlet to said outlet through a cooling-coil positioned adjacent the cooling fan 22. The motor shaft extends on both sides of the motor housing and is connected on one side to the pump 17 and on the other side to the fan 22. <IMAGE>
Patent GB-2079022-A (GB)
Title: Liquid crystal display devices
IPC: G02F1/1368
Filed: 1981-06-11
Abstract: A dyed cholesteric-nematic phase change reflective liquid crystal display cell is mounted on a silicon slice 1 providing an MOS active addressing matrix of FET gates via electrode drain pads 13 preferably made of substantially no- specularly reflecting deposited metal. The multiplex function is thus transferred to the gate and source electrodes, the FET's retaining memory of the required state of their associated elements for the whole of the subsequent scanning period. <IMAGE>
Patent GB-2105778-A (GB)
Title: Horizontally adjustable door hinge
Inventor: DIFAZIO JOSEPH
IPC: E05D7/04
Filed: 1981-09-09
Abstract: A horizontally adjustable door hinge 10, for hingedly connecting the vertical edge of a door 13 to the adjacent vertical edge of the door frame 12, is secured upon an elongated metal strip 11 which forms one of said edges. An enlarged opening 22 cut in the strip 11 loosely receives one leaf of the hinge 15. A plate 25, overlaps the opening 22 at the rear surface of the strip 11, and, the plate rear surface is overlapped by a back-up plate 30. The plate 25 is rigidly fastened to the strip rear surface, and the back-up plate 30 is secured to the plate by a mechanical fastening means that permits horizontal movement of the back-up plate relative to the fixed position plate 25. A number of sets of aligned screw receiving holes 32,33,34 are formed in the leaf, plate and back- up plate. The holes 33 in the plate 25 are formed as horizontally elongated slots. At least some of the holes 30 in the back-up plate are threaded, while others are of sufficient diameter to loosely pass a screw therethrough. Short screws 35 extend through the aligned holes which include the threaded holes and when tightened, fasten together the leaf, plate, and back-up member. When the screws 35 are loosened, the leaf 15, together with the back-up plate 30, may be horizontally moved relative to the plate 25 and the strip 11. Other long screws 39 extend through the other holes for embedding within a door or frame substrate, upon which the strip is applied, after the leaf is horizontally adjusted to predetermined location. <IMAGE>