baber/WOPTO huggingface dataset:
Patent GB-1377516-A (GB)
Title: Method of preparing microcapsules
IPC: B41M5/165
Filed: 1971-12-20
Abstract: 1377516 Microcapsules KANZAKI PAPER MFG CO Ltd 20 Dec 1971 [25 Dec 1970] 59061/71 Heading B8C Water-insoluble or immiscible liquids and solids are encapsulated by liquid/liquid phase separation of gelatine or a water-soluble gelatine derivative (e.g. graft polymers thereof with acrylamide, acrylic acid, methacrylates and vinyl pyrrolidone) from an aqueous dispersion thereof by addition, at a temperature above the gel point of the gelatine, of a water-soluble polyvinyl alcohol having a degree of polymerization of at least 1000 and an average degree of hydrolysis of at least 85%. Preferably, the phase separation occurs at or near the iso-electric point of the gelatine, but addition of salts or adjustment of pH is unnecessary. The resulting microcapsules may be dried and hardened in the usual way. Particular reference is made to the encapsulation of dyes and dye precursors dissolved in oils, the products being useful in the manufacture of record transfer papers and the like.
Patent GB-1422324-A (GB)
Title: Process control apparatus
IPC: G05B11/26
Filed: 1971-12-21
Abstract: 1422324 Process control apparatus; A/D converters LUCAS ELECTRICAL CO Ltd 5 Dec 1972 [21 Dec 1971] 59506/71 Heading G4H [Also in Division H3] Process control apparatus comprises means for generating a control signal whose duration is determined by the measured values of at least two parameters associated with the process. Transducers 22, 26 measure two process parameters and transmit binary signals to adders 24, 27 (transducer 22 outputs a Graycode signal which is converted to binary at 23); the four most significant bits are passed to decoders 25, 28 which each access one of sixteen inputs 13, 14 of a diode matrix memory 10, Fig. 1 (not shown), to produce an output signal 21a-21g. This signal is repeatedly sampled by a counter 31 which counts clock pulses 32a until the current value 21a-21g is reached, whereupon it outputs a pulse 33 which is fed back as a signal 34 to initiate the next sampling count: the intervals between pulses 33 depend on the sampled outputs from memory 10 and hence on the parameter values. When a control signal is required, request signal 36 causes a control device 35 to actuate, on the next pulse 33 received, a device 38 which starts to output the required control signal and a counter 37 which proceeds to count the next sixteen pulses 33, at the end of which device 38 is made to terminate the control signal. Thus the apparatus converts the digital signal 21 to analog form. To improve the accuracy with which the apparatus computes the required control signal duration for given values of the two parameters, the pulses 33 are fed to a counter 41 which causes a decoder 29 to transmit preselected binary numbers to the lowest three inputs of adders 24, 27 so as to modify the outputs therefrom to the decoders. Since some values of the parameters may require no control signal to be sent, a logic unit 43 is incorporated which inhibits control device 35 on receipt of signals 42 (parameter values), 44 (from counter 41) and 21a (diverted by a gate 32). Provision may also be made for modifying the production of the control signal in response to a third parameter (Fig. 3, not shown).
Patent GB-599126-A (GB)
Abstract: 5 9 9, 12 6. Knitting. WAHLE, O. March 7, 1939, No. 7438. [Class 74 (ii)] A hand knitting-needle is provided with an eye 3 or other weft retaining device at each end, these devices being connected by a longitudinal groove 5, so that knitting is performed around the .weft. By the use of the needle, a fabric'in which the unknitted weft 10 passes through each needle loop 11 in a number of successive or otherwise disposed courses is formed.
Patent GB-1237529-A (GB)
Title: Composition and method for treating scale
Inventor: TATE JACK FRANKLIN
IPC: C02F5/14
Filed: 1969-12-10
Abstract: 1,237,529. Inhibiting scale. TEXACO DEVELOPMENT CORP. Dec. 10, 1969, No.60170/69. Heading C7E. Scaling in an aqueous system is inhibited by incorporating therein a phosphate ester having the general formula wherein R is C 6 -C 12  alkylphenyl or C 12 -C 18  alkyl, n = 1 to 20, x, y = 1 or 2 and x + y = 3, the ester having M.W. 500 to 1000, or a salt of said ester, said ester being used in amounts of 0À0005 to 0À005 wt per cent in the aqueous system, which preferably has pH 7À1 to 8 and temperature 100 to 200‹F. and may be circulating water in an oil-orgaswell system. The ester may be made up as a concentrate in an aqueous, aqueous alkanol, or aqueous glycol medium, the concentrate containing, ester 10 to 25 wt per cent, 0À75 to 3% of alkaline agent (NaOH, KOH or NH 4 OH) and 0 to 40% glycol or alkanol (e.g. ethylene or propylene glycol, MeOH, EtOH, PrOH or i-PrOH.
Patent GB-1241926-A (GB)
Title: Heterocyclic phosphorus compounds, processes for their manufacture and their use for the flameproofing and creaseproofing of cellulose-containing fibre materials
IPC: D06M13/02
Filed: 1969-12-10
Abstract: 1,241,926. Flameproofing and creaseproofing textiles. CIBA-GEIGY A.G. 10 Dec., 1969 [18 Dec., 1968], No. 60379/69. Heading D1P. [Also in Division C2] Textile materials comprising cellulose are rendered flameproof and creaseproof by applying thereto an aqueous preparation containing at least one compound of formula where R 1 , R 2 , R 1 ' and R 2 ' are C 1-4  alkyl, haloalkyl or alkenyl and X is H or methyl, and drying the materials. The aqueous preparation may also contain a curable aminoplast precondensate, and additionally a copolymer obtained from an alkaline earth metal salt of an α-#-unsaturated monocarboxylic acid, an N-methylolamide or ether thereof of an α-#- unsaturated mono- or di-carboxylic acid, and at least one other copolymerisable compound.
Patent GB-1216940-A (GB)
Title: Improvements in or relating to communication switching systems
Inventor: GAY CHARLES DAN
IPC: H04Q3/00
Filed: 1968-12-19
Abstract: 1,216,940. Automatic exchange systems. AUTOMATIC ELECTRIC LABORATORIES Inc. 19 Dec., 1968 [18 Jan., 1968], No. 60466/68. Heading H4K. A crosspoint switching system has a plurality of co-ordinate matrices each with a plurality of relays and the relays are marked by applying a first potential to a selected input and a second potential to a selected output of all the matrices together with a third potential applied to the outputs of a selected matrix where the second and third potentials consist of complementary pulse trains which together form a continuous potential. The crosspoint switch shown in Fig. 1 has 3 x 3 matrices M1, M2, M3 with the relay windings in series with diodes shown between inlets HP and outlets UP. The respective inputs of each matrix arc connected together and supplied from transistors TR in the select input circuit SIC. Similarly the respective outputs are connected together and supplied through diodes 101, 102 ... , from transistors VTR in the output selection circuit SCOC. The outputs from each matrix arc also connected together through diodes 1D, 2D, 3D and supplied from transistors MTR1, 2, 3 respectively. The transistors VTR 1, 2, 3 and MTR 1, 2, 3 are supplied with complementary pulse trains from pulse generator 110. In operation switch SW1 is used to select the inlet HP3 associated with the required crosspoint and a constant potential is applied to line L3 through TR3. Similarly switch SW3 is set to position 2 to energize line OC2 through transistor VTR2 and thereby outlet VP2 in the matrices. The train of pulses from generator output 110B is applied to the relay winding but the mean current is insufficient to operate the relay. Switch SW2 now selects the required matrix M2 and the output lines are supplied with pulses from generator output 110A through transistor MTR2. Relay winding CP3/2 now has its output energized by pulses from 110A and 110B and since those pulse trains are complementary a continuous voltage will be applied to this winding so that the relay will pick up after the normal delay period. In a communication system using three stages, Fig. 3 (not shown), 300 inlets are connected through A, B and C stages to 600 outputs and each inlet has 60 paths for connection to an outlet. Calls are connected on a oneat-a-time basis by control circuit 10 which selects idle cross-points and then marks them as described above. A call channel is shown in Fig. 4 where each crosspoint relay has talking path connections T, R, a holding connection H and a pull connection P. Electronic scanners 101-109 arrange for the operation of the transistor stages DA5, MA1 ODA 10 to mark the inlet, matrix and outlet and thereby pass current through winding RA. When all the switches have operated the holding circuit is completed and the marking potentials are disconnected.
Patent GB-1331107-A (GB)
Title: Photographic reproduction apparatus
IPC: G03G15/04
Filed: 1970-12-23
Abstract: 1331107 Heat shields RICOH KK 23 Dec 1970 [28 Dec 1969] 61239/70 Heading G2A A photo-copying apparatus having an original table 1 and a light source 5 is provided with a heat shield plate 11 movable between a first (dotted line) position between the lamp and the table, and a second (solid line) retracted position in which the table is exposed to the light source, there being means operable to maintain the plate 11 in its first position until the light source has reached its operative state after energization, whereupon the plate is moved to its second position, As shown, the apparatus is of the scanning type, having the source 5 mounted on movable means 2 containing mirrors 6, 8, 9 and a lens 6. The plate is biased by a spring (20), Fig. 2 (not shown) towards its first position until, after energization, the source 5 reaches its operative state, whereupon a solenoid (21) is energized pivoting a lever (18) against the spring (20) thereby retracting the shield plate 11. The table 1 is thus exposed to light and the means 2 simultaneously begins to scan the table. The solenoid is de-energized when the means 2 has finished its advance stroke. In another embodiment Figs. 4-7 (not shown), an arcuate plate (41) is pivotally mounted for movement with the light source (5), and is biased towards its retracted position. A latch is provided to retain the plate (41) in its first position, the latch being released by operation of a solenoid (55) when the source reaches its operative state, and being automatically reset as the exposure means returns of its start position.
Patent GB-1329290-A (GB)
Title: Bonding
IPC: H01L21/00
Filed: 1970-12-29
Abstract: 1329290 Welding by pressure WESTERN ELECTRIC CO Inc 29 Dec 1970 [31 Dec 1969] 61503/70 Heading B3R In bonding two workpieces using bonding apparatus including a bonding head having a transparent tip portion for applying bonding energy to the workpieces to bond them together, the workpieces are aligned in desired relation to each other, the alignment of at least one workpiece is inspected with means adapted to inspect it via the transparent tip portion along an axis passing through the tip and bonding energy is applied to the workpieces. A bonding machine includes a movable head assembly 22, a base 24, a positioning assembly 26 and an inspection system including a television camera 27 and a monitor 28. A microscope may replace the television camera. The head assembly 22 carries a bonding head 46 having an upper clear glass or quartz wall and a lower clear glass or quartz bonding tip, a vacuum chamber being formed between the wall and tip and connected with an aperture in the tip. The axis of the television camera coincides with the axis of the tip. Heating elements are provided in the head. A substrate support 66 and a chip tray 70 are provided on the positioning assembly 26 which latter is movable by a handle 88. In operation a ceramic substrate 40 having conductive elements thereon is positioned on the support 66 and a beam lead integrated circuit or chip 30 is held on the tip by vacuum generated in the tip chamber and the camera produces an image of the circuit on the monitor. A transparent compliant member 44 in tape form fed from a reel 72 to a take up reel 74 is provided, in an aperture of which the chip is arranged. Correct location of the chip relative to the substrate is achieved by movement of the handle 88 and then the bonding tip is lowered to effect thermo compression bonding, supplementary heating being provided by heaters 65 in the support 66. After bonding, the head is raised and the tray 70 with chips thereon is brought below the head in order that a new chip may be picked up by the bonding tip. In a modification the compliant tape is omitted.
Patent GB-1276107-A (GB)
Title: Hydroxy aziridinyl compounds
Inventor: UELZMANN HEINZ
IPC: C08G73/02
Filed: 1969-12-19
Abstract: 1276107 Aziridinyl derivatives GENERAL TIRE & RUBBER CO 19 Dec 1969 62054/69 Heading C2C Novel aziridinyl compounds of the formula in which R 1 , R 2 , R 3  and R 4  are hydrogen or C 1-4  alkyl, R is hydrogen, alkenyl, alkenylcycloaliphatic, alkenylaryl, hydroxypolyoxyalkylene or cycloalkylene, hydroxypolyoxyalkenylene or hydroxy - (alkenyloxy - substituted) polyoxyalkylene and R 1  is hydrogen, hydroxypolyoxyalkylene or cycloalkylene, or hydroxy- (alkenyloxy-substituted) polyoxyalkylene, provided that when R<SP>1</SP> is hydrogen, R is not hydrogen or alkenyl, are prepared by reacting an aziridine of the formula with a glycidol of the formula in which R<SP>11</SP> is an alkenylcycloaliphatic or alkenylaryl group, or reacting a compound of the Formula IV: where R 6  is hydrogen, alkenyl, alkenylcycloaliphatic or alkenylaryl with an alkylene oxide. The aziridines of Formula I can be reacted with a C 6-28  carboxylic acid to provide compounds of the formula and any such compound in which R or R<SP>1</SP> is hydrogen, optionally further reacted with an alkylene oxide, both products being useful as surfactants. Specified aziridines include 1-(N- ethyleneimino) - 2 - hydroxy - 3 - vinylcyclohexyloxypropane, and alkylene oxide adducts of 1 - (N - ethyleneimino) - 2,3 - propanediol, 1 - (N - propyleneimino) - 2,3 - propane diol, 1 - (N - butyleneimino) - 2,3 - propane diol, 1- (N - ethyleneimino) - 2 - hydroxy - 3 - allyloxypropane and 1- (N-ethyleneimino)-2-hydroxy-3- crotylpropane. Surfactants of the Formula V include alkylene oxide adducts of 2-(N-2,3- dihydroxypropylamino) ethyl stearate and phenylacetate and 1 -propyl-2-(N-2-hydroxy-3- vinyloxypropylamino) ethyl laurate. The process by which the aziridines are obtained is exemplified by the preparation of 1- (N.butyleneimino)-, (N-propyleneimino)- and (N-ethyleneimino)-2,3-propane diols, which compounds do not form part of the invention. The novel aziridines may be homopolymerized to provide polyimines and can be used in chain extenders or terminators or cross-linking agents.
Patent GB-1277480-A (GB)
Title: Boats
Inventor: LAMMERICH KURT
IPC: B63B7/08
Filed: 1969-12-20
Abstract: 1277480 Transoms for inflatable craft DUNLOP HOLDINGS Ltd 30 Nov 1970 [20 Dec 1969] 62504/69 Heading B7A An inflatable boat has a main transom 3 which completes the hull 9, spaced therefrom, an outboard engine mounting transom 8 provided with water drain holes 13. The two transoms are interconnected by rigid frames 6, 7 and a board 5.
Patent GB-699242-A (GB)
Abstract: 699,242. Electric correspondence control system. SPERRY CORPORATION. Aug. 30, 1950 [Sept. 1, 1949; Oct. 14, 1949], No. 21429/50. Class 40 (i) [Also in Group XL(b)] Apparatus for determining the angular displacement of a shaft comprises means for energizing a photo-electric cell by light reflected from a mirror attached to the shaft, the light being passed through means for phase-modulating the output in accordance with the angular displacement. In one embodiment a mirror 2 (Fig. 1) is attached to a rotatable shaft 1 of an instrument, e.g. compass, voltmeter, barometer, &c., to reflect a beam of light 9 through two fixed polarised screens 7, 8 located side by side with their axes perpendicular, followed by a rotating disc polariser 10 so that the light output is cyclically modulated through each fixed screen 7, 8 with a phase difference of 90 degrees, the phase and magnitude being determined by photo cell 15 feeding into a phase-detector circuit 21, using the reflected light from a fixed mirror 21' and fixed polarised screen 22 energizing a photo cell 25 to determine a reference phase. A centre zerometer 31 attached to the phasedetector 21 indicates the direction and magnitude of the angular deviation of the shaft 1 from a fixed position. In a modification the polarised screens have their axes each 22¢ degrees from the vertical, while the reference screen is at 45 degrees from the vertical, and the electrical outputs from the two photo cells pass through filters which eliminate all but the fundamental A.C. whose frequency is twice that of the rotating disc. In another embodiment (Fig. 3), the light reflected from the moving mirror 2' passes through a rotating disc shutter 32 on to an elliptical mirror 33 and energizes a photo cell 34, while a reference voltage is obtained by the direct light from the source 3' through the rotating disc 32 falling on photo cell 25'. The outputs of the photo cells are compared in the phase detector 121'.
Patent GB-742313-A (GB)
IPC: E03C1/04
Abstract: 742,313. Valves. PEGLERS, Ltd. Dec. 15, 1953 [Dec. 16, 1952], No. 31865/52. Class 135. A water supply fitting for the delivery together of hot and cold water comprises a tubular body 12, connected to supply pipes 10, 11 controlled by valves 15, 16 with a delivery nozzle formed with side-by-side delivery passages 17, 18 and a substantially cylindrical chamber 15a having its diametrally opposite walls separating the two body feed passages 13, 14 and orificed at 24, 25 for admitting the hot and cold water to the respective delivery passages 17, 18. The nozzle may be fixed to the body or able to be swivelled, and the cylindrical chamber may be integral with the body or formed by a sleeve 22.
Patent GB-2001587-A (GB)
Title: An improved semi- submersible vessel
IPC: B63B35/44
Filed: 1978-08-01
Abstract: A semi-submersible vessel comprises a sealed chamber 1, a partially immersible support structure 34 secured to the chamber and a platform or deck 6 carried by the support structure. Preferably the sealed chamber comprises a plurality of toroidal storage reservoirs and ballast tanks. The lower portion of the vessel, formed by the closed chamber, opens at its upper portion toward the support structure and at its lower portion through an opening for communication with the liquid of the environment. The vessel additionally comprises a plurality of openings 53 in the proximity of the larger perimeter of the chamber. The concavity of the chamber may be directed upwardly or downwardly. <IMAGE>
Patent GB-2029736-A (GB)
Title: Improvements in or relating to blade-sharpening apparatus for mowers
IPC: B24B3/36
Filed: 1978-09-12
Abstract: Apparatus for sharpening the cutting cylinder of a mower comprising an elongate rigid metal plate adapted to be secured to the stationary bottom blade of a mower. The plate defines a groove 14 in which the blade can be clamped by means of screws 15. The opposed face of the plate supports an abrasive grinding material 19, so that appropriate adjustment of the cutting cylinder will, on rotation thereof, grind the blades on the abrasive material. <IMAGE>
Patent GB-2005891-A (GB)
Title: Coin-free mechanism
IPC: G07F5/08
Filed: 1978-10-06
Abstract: A coin-freed mechanism of the kind in which, when coins making up a vend (i.e. the coins required to release the mechanism) have been inserted, they come to rest in positions where they co-operate with parts of the mechanism mechanically to permit release of a drawer comprising coin retaining elements which define said positions of the coins of a vend, which coin retaining elements are adjustable or interchangeable to provide different configurations thereof defining coin positions for respective different vends. In operation, the coins release an abutment to allow the drawer to be pulled out. <IMAGE>
Patent GB-2006893-A (GB)
Title: Shaft Seals
IPC: F16J15/32
Filed: 1978-10-27
Abstract: A shaft seal comprises a resilient sealing ring 12 with a spring ring 13 and a sealing lip 20 which seals a rotatable shaft 11 between a high pressure fluid in a first space A and a low pressure fluid in a second space B. The sealing ring 12 is of channel shape in section, having two spaced lips and terminating in radially outer flanges 14, 15 which are clamped in position on respective sides of an intermediate ring 16. The presence of the two spaced lips 12 and 19 ensures flexibility of the ring 12 whilst relieving the radially inwardly directed forces which the high pressure fluid in space A exerts on the ring 12. The space within the seal may contain a cooling fluid. <IMAGE>
Patent GB-2008491-A (GB)
Title: A method of manufacturing a mineral fibrous product coated by a metal foil
IPC: B32B15/14
Filed: 1978-11-15
Abstract: The invention relates to a method of manufacturing a mineral fibrous product, such as a mineral wool product or a rock wool product by applying a fire- proof liquid adhesive composition upon each of the surfaces of an intermediate in support layer consisting of a glass non woven web or fabric 8, whereafter an aluminium foil 6 and a surface of a mineral fibrous product to be coated, for example a plate 2, are pressed onto the liquid adhesive layers upon said intermediate layer 8. A roller track 1 is used for conveying the product while there is a reel 5 for stocking the aluminium foil, whereas a second reel 7 comprises the flass non woven or fabric 8, which is guided through a guide roller 9 along a moisturizer 10 immersed in an adhesive composition 11 and subsequently along guide rollers 13, 14 and 15, thus that the foil and the non-woven or fabric will contact another almost simultaneously and thereafter will be pressed against the surface 16 of the mineral wool plate 2 to be coated, whence the finished product is dried and discharged. <IMAGE>
Patent GB-2017929-A (GB)
Title: Digital tape measure
IPC: G01B3/10
Filed: 1979-03-13
Abstract: A digital tape measure includes a housing 10, an elongate flexible member 20 at least partially inside the housing, the member having a variable adjustable length outside the housing, a resiliently operated means for retracting the flexible member into the housing, and means for providing a digital measure of the variable length. The digital measure means includes a counter which counts up pulses as the flexible member is drawn from the housing, and counts down as the flexible member is retracted into the housing and pairs of contacts, the pairs being bridged successively by a contact moved by the member 20 for producing the pulses. <IMAGE>
Patent GB-2018643-A (GB)
Title: A twist drill made of hard metal in particular for the drilling of printed circuit boards
IPC: B23B31/00
Filed: 1979-03-14
Abstract: A twist drill intended primarily for use in the drilling of printed circuit boards comprises a rigid clamping shank (4) having a blind bore (5) in the remote end thereof and an oversize drill shank (3) arranged as a press fit in the blind bore. That part of the drill shank (3) intended for engagement with the blind bore (5) has a roughened outer surface (8) thereto to improve the drive transmission characteristic of the bore/shank interface. The inner drill shank end (7) has a cutting edge (6) to enable the press fit. The outer clamping shank surface is hardened. <IMAGE>