baber/WOPTO huggingface dataset:
Patent GB-1355543-A (GB)
Title: Delta modulators
IPC: H03M3/02
Filed: 1971-11-29
Abstract: 1355543 Delta modulates WESTERN ELECTRIC CO Inc 29 Nov 1971 [2 Dec 1970] 55272/71 Heading G4H In a delta modulator, in which the input signal E in  is compared with a feedback signal E 28  and the difference signal E 19  sampled (1) to transmit a pulse whenever the difference signal is, for example positive and (2) to derive a feedback signal, the feedback signal may be varied between successive samples of the difference signal. In the embodiment of Fig. 4 in which the transmitted pulse train E 20  is applied to logic circuitry 24 which recognizes particular sequences of transmitted data to pulse a counter 25 controlling a pulse rate selector 26 receiving at its input a frequency signal f tMAX  and delivering a variable frequency signal f t  to gates 22, 23. The other inputs to the gates is derived in accordance with the polarity of the difference signal E 19  so that the charge on a capacitor C 1  is increased or decreased in fixed increments at a rate determined by the count in counter 25 to derive the feedback signal.  In a modification (Fig. 5, not shown) the rate of sampling of the difference signal is also varied, in a similar manner, in dependence on the output signal from logic circuitry (37) recognizing particular sequences of transmitted data.
Patent GB-1429705-A (GB)
Title: Selective metallization of nonconductors
IPC: C04B41/88
Filed: 1973-11-29
Abstract: 1429705 Selective electroless plating BUCKBEE-MEARS CO 29 Nov 1973 [20 Dec 1972] 55352/73 Heading C7F An insulating substrate of e.g. plastics or ceramics is selectively electroless plated with e.g. Ni, Cu, Co, Fe or Au by cleaning the substrate, applying a photo-resist, developing it, removing the unwanted part of the photo-resist applying a catalytic layer of e.g. Pd, then removing the remaining part of the photo-resist with perchlorethylene, O-dichlorobenzene, dodecylbenzene-sulphonic acid or phenol, and electroless plating.
Patent GB-1333735-A (GB)
Title: Platform for the transport of freight
IPC: B65D19/38
Filed: 1970-11-23
Abstract: 1333735 Roller conveyers for vehicles and pallets K H SCHMIDT 23 Nov 1970 [21 Nov 1969] 55662/70 Headings B8A B8E B8H and B8Q A platform for the movement of freight comprises a lower section A provided with ball roller assemblies 18 supported on tubular members 5 which project above the level of the frame 1 of the platform section A. An upper platform section B is separable from the section A and has tube portions 11 corresponding to the members 5 some of which have conical collars for location of the portions 11 and, accordingly, the platform section B. The sections A, B may be releasably secured together by devices 15 engageable with recesses in the section B when a crank 17 is operated. Other roller means, driven or undriven and mounted for swivelling movement about a vertical axis may replace the rollers 18. The rollers may be mounted on the upper platform section B. For lifting the section B there are rings 21 for slings (22), Fig. 13 (not shown), standardized container corner fittings (24), Figs. 14-16 (not shown), or areas for engagement by lift forks. The lower section A is also adapted for fork lift engagement. This section may be provided with retractable propulsion means or support rollers and may be constructed as an air cushion vehicle. It may have means for anchoring to the ground and there may be levelling means. There may be couplings for use with other sections or powered vehicles. To prevent freight from moving when on the upper section B, clips on the containers for the freight may engage in recesses in the section B. Alternatively, means for separating the sections A, B to a limited degree provides that the balls 19 may be lowered relative to the upper surface of the section B. In Fig. 11 a number of platform units AB form a continuous surface for the movement of air freight containers E. Figs. 14, 15 (not shown) illustrate road and rail vehicles adapted to receive containers (E<SP>1</SP>) on a platform section (B). A platform unit may be divided vertically into several sections provided with means for aligning the sections and releasably securing them together.
Patent GB-1441160-A (GB)
Title: Graft terpolymer and process for its production
IPC: C08F259/00
Filed: 1973-12-03
Abstract: 1441160 Grafted vinyl or vinylidene halide polymers HOOKER CHEMICALS & PLASTICS CORP 3 Dec 1973 [27 Dec 1972] 55824/73 Heading C3G A graft terpolymer is produced from a vinyl or vinylidene halide polymer, a vinyl ester having from 6 to 18 carbon atoms in the ester group and maleic anhydride. The vinyl ester and maleic anhydride being present in a proportion of 3 to 30% by weight, based on the weight of vinyl or vinylidene halide polymer. Examples are given in which polyvinyl chloride is grafted in bulk with maleic anhydride and vinyl stearate or vinyl laurate in the presence of tert-butyl perbenzoate, or 2-tertbutylazo-2,4- dimethoxy-4-methylpentane, and atin stabilizer.
Patent GB-1149650-A (GB)
Title: Method for detecting changes in thickness of sheet materials
IPC: B65H63/032
Filed: 1966-12-14
Abstract: 1,149,650. Detecting faults in moving sheets. NASH & HARRISON Ltd. Dec.14, 1966 [Dec. 16, 1965], No.55930/66. Heading G1N. To detect defects such as splices and tear-outs in moving sheet paper, the sheet passes through a detector head containing two sets of capacitor plates, one tuning an oscillator circuit, and the other tuning a receiver circuit normally to the same frequency. Sudden changes in thickness of the paper, such as a splice, passing through one capacitor section before the other detunes one circuit relative to the other and thus momentarily reduces the receiver output to operate an indicator, alarm or control device. Alternatively Fig.8 (not shown) the oscillator may be associated with two receiver circuits, one of which is detuned before the other by a splice. As illustrated Figs.3, 4, 5 (not shown) the live capacitor plates are shielded from one another by an earthed strip. In an alternative system, the capacitor elements may be connected in a normally balanced bridge circuit Fig.9 (not shown).
Patent GB-1255360-A (GB)
Title: Improvements relating to internally cooled turbine blades
IPC: B23P15/04
Filed: 1969-11-14
Abstract: 1,255,360. Making turbine blades. MOTOREN-UND TURBINEN-UNION MUNCHEN G.m.b.H. 14 Nov., 1969 [14 Nov., 1968], No. 56006/69. Heading B3A. [Also in Division F1] A method of making an internally cooled turbine blade comprises providing a first sheet metal wall part 2 having receeses 5, providing a second, thinner sheet metal part 4 or parts for positioning over the recesses to form coolant passages, shaping the first part around a tool 9 to form the blade wall to the desired aerofoil section, either before or after securing the second part or parts to the first part, and in such a way that the edges of the first and/or second part(s) form the trailing edge of the blade, and welding or soldering the edges together with at least one coolant outlet provided. The recesses or grooves 5 are stamped or milled in the strip forming the wall part 2 and the part 4 has holes (6) drilled therethrough, Fig. 4 (not shown). The parts 2, 4 are brazed or welded together prior to the forming operation and the grooves 5 extend over the full chord of the blade. Alternatively the first wall part may be formed with a spanwise groove 22 communicating with a series of parallel chordwise grooves 23 and having chordwise grooves formed at the trailing edge 23<SP>1</SP>. The second wall part is formed separately and inserted in the first after the latter has been shaped. In a further embodiment, the first wall part is provided with a plurality of spanwise grooves, the outermost pair of which communicate with a plurality of chordwise grooves forming the trailing edge outlets, Figs. 10, 11 (not shown).
Patent GB-1453605-A (GB)
Title: Apparatus for use in inhalation therapy
IPC: A61M11/02
Filed: 1973-12-05
Abstract: 1453605 Respiratory apparatus I M S Ltd 5 Dec 1973 [11 Dec 1972] 56387/73 Heading AST [Also in Division F1] In a nebulizer for inhalation therapy, pressurized air entering through a line 58 atomizes liquid medicament, fed from a pool 64 via a capillary 60, on a ball 62, additional air being drawn in through an opening 72, with the medicament/air mixture passing through channels 48, 50 and a flow valve 54 to an outlet 56 leading to a patient, the medicament being replenishable from an injector 10 having a tip 24 insertable into a port 74 in the wall of the nebulizer to form an air-tight connection.
Patent GB-1446637-A (GB)
Title: Gas testing apparatus and method
IPC: G01N1/34
Filed: 1973-12-06
Abstract: 1446637 Separating gases by diffusion DYNASCIENCES CORP 6 Dec 1973 [2 Jan 1973] 56581/73 Heading B1L [Also in Division G1] A probe 40 filters solids from the gas to be tested and a heated conduit 42 leads to the lower chamber of cell 10 in the oven 86 which maintains the gas and the cell at a constant temperature above the dew point. A carrier gas flows through conduit 130 and passes across the membrane in the upper chamber of the cell to convey a gas suitable for sampling and testing i.e. free of water vapour. Scrubber 138 purifies the carrier gas of contaminants which might affect the analysis. Calibration gases can be introduced via valve 70. The system may also be used as a source of specified concentrations of particular gases at a particular temperature. The invention is particularly applicable to stack gases containing oxides of sulphur carbon and nitrogen. Materials for membrane 32 (Fig. 4) are exemplified. A diffusion cell 10 has upper and lower body sections 12 and 14 secured together to form with the membrane 32 upper and lower diffusion chambers 24, 30. Non resilient pads 35 support the membrane. The gas to be tested enters inlet port 20 and any undiffused gas is vented at 22. The carrier gas enters conduit 42 at 26 and passes to analyser by 28.
Patent GB-1207316-A (GB)
Title: Shower units
Inventor: GRAHAM THOMAS WALTER WEIR BROW
IPC: A47K3/28
Filed: 1966-12-21
Abstract: 1,207,316. Shower units. THOMAS GRAHAM & SONS Ltd. 18 Dec., 1967 [21 Dec., 1966], No. 57097/66. Heading A4N. A shower unit comprises a cubicle 10 having a water drain 12, a first water spray device 13 adjustably mounted to the cubicle to debouch into the cubicle, an open-bottomed height-adjustable revolvable seat 17 in the cubicle, a second water spray device 22 located underneath the seat to serve as a douche spray, the two water spray devices taking water from a thermostatically controllable mixer 15. In a preferred embodiment the seat 17 is mounted around a hollow column 21, the spray device 22 being mounted on the column and a water supply line being connectible to this spray device. A third spray device 27 is provided and is connected to its supply by a flexible conduit 28 to facilitate the bathing of an incapacitated patient. A grab rail 26 extends around the cubicle and a valve (24), Fig. 2 (not shown) and a pressure reducing valve (25) are located between the mixer 15 and the device 13. A plurality of cubicles may be arranged side-by-side or back-to-back, the cubicles having common gutters and water supplies. Tiled ramps may facilitate the entry of a wheeled chair into a cubicle.
Patent GB-1326774-A (GB)
Title: Heat dissipating fin element for heat exchangers
IPC: F28F1/12
Filed: 1970-12-01
Abstract: 1326774 Making heat exchangers SOC ANON DES USINES CHAUSSON 1 Dec 1970 [3 Dec 1969] 57130/70 Headings B3A and B3E [Also in Division F4] A heat exchanger fin element, Fig. 4 and 8, is formed by passing a metal strip through a series of rolls 12, 13 and 16, Fig. 3, wherein firstly, sets of slits 10a Fig. 2 are cut through the strip by the rolls 12, adjacent sets being separated by unslit strip portions 11. The slats, e.g. 14a, 15a thus defined by the slits are bent out of the plane of the strip by the rolls 13 and transverse corrugation bends are applied at the portions 11 by the rolls 16. The strip then passes between surfaces 18, 19 which frictionally retard forward motion of the strip in direction f2 whereby the pitch of the corrugations is shortened and the slats of adjacent sets became intermeshed as shown, e.g. in Fig. 4. The deformation to each slat imparted by the rolls 13 may be a simple curve (as shown) or it may be angular (Fig. 5a). The slats may also be transversly curved by either the rolls 12 or 13 (Fig. 7). The friction grip of the surfaces 19 may be greater than that of the surfaces 18 so that a corrugation formation such as is shown in Fig. 8 is obtained.
Patent GB-1283130-A (GB)
Title: Surgical clamping means
IPC: A61B17/28
Filed: 1970-12-02
Abstract: 1283130 Surgical forceps PILLING CO 2 Dec 1970 [22 Dec 1969] 57360/70 Heading A5R Surgical clamping means comprise a pair of jaws 8 and 10 interconnected for movements toward and from each other, each of said jaws comprising at least one longitudinal rib having a row of teeth 38, 40, Fig. 3, and at least one longitudinal groove 18, 28, Fig. 4, to receive the teeth of the rib of the opposite jaw, the teeth of the ribs on the respective jaws being laterally disposed relatively to each other, the ribs on the respective jaws having longitudinally extending flanks 22, 34 which are closely adjacent to each other when the jaws are in clamping relationship and which are shaped to provide a longitudinally extending tissue-receiving pocket 36 having, in transverse cross-section, an enlarged central portion and relatively narrower end portions. The flanks of the ribs are preferably concave and the apices of the teeth preferably rounded. The jaws are also provided with engageable surfaces 16, 26 to prevent engagement of the teeth with the corresponding grooves.
Patent GB-1276520-A (GB)
Title: A process for recovering lead and/or other non-ferrous transition metals from a raw material containing oxide thereof
Inventor: RIESENHUBER HEINZ
IPC: C22B19/02
Filed: 1969-11-24
Abstract: 1276520 Extracting non-ferrous metals METALLGESELLSCHAFT A G 24 Nov 1969 [23 Nov 1968] 57476/69 Heading C7D Non-ferrous metals selected from lead and metals of Groups IB to VIB of the periodic Table are recovered from their oxidic raw materials by reacting the raw material with calcium chloride and possibly sodium chloride to volatilize the desired metal as its chloride, combining the condensed chloride with calcium oxide or carbonate and heating with carbon to form elemental metal and a calcium chloride slag and separating the two. The mixture of raw material and calcium chloride may be pelletized or briquetted, the chloride may be added in solution and carbonaceous material may be included in the agglomerates. The mixture is then heated in a rotary kiln to vaporize the non-ferrous metal chloride. If a mixture of such chlorides is formed they may be separated by fractional condensation and purified by re-distillation. Chloride, mixed with limestone and carbon can be tabletted and heated in a rotary reverberatory furnace to form separate layers of metal and slag which can be separated by decanting or by cooling and dissolving the chloride in water for re-use in the first step.
Patent GB-1370489-A (GB)
Title: Display devices
IPC: G02F1/1343
Filed: 1971-12-15
Abstract: 1370489 Electronic watches SUWA SEIKOSHA KK 15 Dec 1971 [23 Dec 1970] 58271/71 Heading G3T [Also in Division G5] An electronic watch has a numeric time display formed by selective energization of combinations of electrodes suitably shaped to form characters, a plurality of such electrodes being disposed on each of upper and lower panels which are superimposed and spaced apart. A layer of liquid crystal is disposed in between. Fig.3 illustrates the electrode arrangement for forming one digit of the time display. Panel A carries four printed circuit electrodes and four terminals therefore, and overlies a panel B. The latter has two electrodes with two terminals. Liquid crystal is sandwiched between the panels. In practice, where six digit display is required there will be six electrode systems as panel A and six as panel B arranged on respective panels as illustrated Fig. 5 (not shown). Like electrodes on panel A are connected together and to a respective common terminal. Each electrode in panel B is connected to a respective terminal. In the driving arrangement Fig.6 (not shown) known circuitry in block 1 derives from clock signals fed in at i figure representative signals B, C, D which are supplied to a known decoder 2. The decoder converts the signals B, C, D into signals which select the electrodes in the time display device 3 for energization. A known scanning circuit 4 scans the decoded signals B, C, D with a synchronizing signal also supplied from circuit 1 and fed via a lead Si. The electrodes in the display are selected and energized in accordance with the decoded signals and at times determined by the synchronizing signals so that the device 3 displays the time. Only some of the electrodes, which are necessary to form a numeral, may be energized at any one time. Thus, as described with reference to Figs.7 and 8 (not shown) to form a numeral 3 the necessary combinations of overlapping electrode portions are energized at four successive times t 1  to t 4 . By virtue of persistence of vision the successive partial displays are seen to form the numeral 3.
Patent GB-1347380-A (GB)
Title: Process for the preparation of acrylate and methacrylate esters
IPC: C07C69/54
Filed: 1971-12-17
Abstract: 1347380 Catalyst composition NATIONAL DISTILLERS & CHEMICAL CORP 17 Dec 1971 [17 Dec 1970 10 Nov 1971] 58791/71 Heading B1E [Also in Division C2] Catalysts containing palladium metal and phosphoric acid on a support, are used for the preparation of acrylate or methacrylate esters by the reaction of propylene or isobutylene with molecular oxygen and a primary aliphatic alcohol (1-4C) in the vapour phase. The palladium metal may be alone or as an alloy, mixture or solid solution with a further metal, e.g. another Group VIII or IB metal such as gold or silver, and the carrier may be silica, alumina, titania, carborundum, carbon or ionexchange resin. The catalyst may be prepared by reduction of salts or oxides on a support. Examples describe the use of palladium-phosphoric acid, palladium-phosphoric acid and gold, and palladium-phosphoric acid and silver on alumina, and palladium and phosphoric acid on silica.
Patent GB-1287508-A (GB)
Title: Sealed container arrangement
IPC: A61B19/04
Filed: 1970-12-11
Abstract: 1287508 Envelopes AFFILIATED HOSPITAL PRODUCTS Inc 11 Dec 1970 [29 Dec 1969] 59122/70 Heading B6A [Also in Division B8] A sealed envelope 11 comprises a body portion 13 forming a chamber, a flexible closure flap 15 connected with the body portion, and a flexible shear seal 17 disposed beneath the closure flap and secured in folded relationship with the opposite ends secured respectively to the interfacing surfaces of the flap and body portion. As shown, the seal 17 which may be made of paper is secured to the flap 15 and body portion 13 by adhesive.
Patent GB-1386320-A (GB)
Title: Device for producing a polychromatic display
IPC: G01S7/06
Filed: 1972-12-22
Abstract: 1386320 Cathode-ray tube displays COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 22 Dec 1972 [28 Dec 1971] 59501/72 Heading H4T In an arrangement for photographing coloured traces produced on a colour display cathode-ray tube the traces in each colour are repeated in a repetitive cycle, a number of times which, for a particular colour, is approximately inversely proportional to the brightness of that colour on the tube screen so that in the photograph the various traces have the same luminosity. The traces are produced by appropriate X, Y deflections of the beam of the display tube 2 by means of deflection signals supplied by a circuit 3 controlled by a data processor 13 which also supplies colour determining signals to a circuit 22 having outputs 23 ... 26 respectively indicative of the colours (G) green, (Y) yellow, (O) orange and (R) red and these output signals are supplied via respective AND gates 31 ... 34 to a switching device 20 which selectively controls the potential of the tube cathode to cause the traces to be produced in the required colours. The number of traces produced in a particular colour is then determined by the time during which the corresponding gate 31 ... 34 is conductive and this is controlled by the duration of a pulse derived via switches 55 ... 58 from the corresponding one of flip-flops 42...45 which duration is determined by the time required to count down to zero corresponding counters 35 ... 38 in respective ones of which an initial count equal to the number of successive traces in the corresponding colour is set by means 41, the counting down being effected by means of pulses synchronized with the succession of traces and derived from output 39 of processor 13. In a particular example first and second sets of traces in all of the colours G, Y, O, R are produced then a third set of traces in the colours Y, O, R is produced, then fourth and fifth sets of traces in the colours O and R and then sixth to ninth sets in the colour R by setting up counts of 2, 3, 5 and 9 in the respective counters 35 ... 38. The output of flip-flop 45 is then employed to operate the shutter of the camera 46. By changing over the switches 55 ... 58 a source 59 supplies a fixed potential as second inputs to gates 31 ... 34 and allows normal direct viewing. The invention has application to the observation of the direction and speed of mobile, particularly airborne, objects.
Patent GB-1241609-A (GB)
Title: Bouyant life saving device
Inventor: WILLES JOHN EDMUND LACON
IPC: B63C9/26
Filed: 1968-12-16
Abstract: 1,241,609. Buoyant life-saving devices. BRITISH ROPES Ltd. 13 Feb., 1970 [16 Dec., 1968], No. 59808/68. Heading B7U. A life-saving device comprises a ring 1 of buoyant material supporting netting 4 on which a person can be supported, the ring being elastically deformable and biased into its extended working position. The ring is formed by joining the ends of an extruded length of synthetic elastomer, and may have a core of expanded or foamed elastomer. The netting may be of inherently buoyant, synthetic elastomeric fibre or tape with knotted or heatsealed joints. Various shapes are described for the netting mesh and the cross-section of the rod forming ring 1. A vertical line is secured to the ring by an eyeletted strap. Floats may be attached to the ring, or buoyant cord may be wrapped around the ring, to increase its buoyancy. The ring may have a stainless-steel wire reinforcement unjoined at its ends. The ring is folded for storage, and unfolds when thrown, Figs. 9 to 13 (not shown).
Patent GB-1291076-A (GB)
Title: A rotary high current pick-off
Inventor: TOLE WALTER ROLAND
IPC: H01R39/64
Filed: 1969-12-10
Abstract: 1291076 Current collectors BETA INSTRUMENT CO Ltd 30 Nov 1970 [10 Dec 1969] 60335/69 Heading H2E . A conductive connection between a rotatablymounted conductive member and a second member, which may be rotatably mounted, is made through a molten metal or alloy with melting point in the range O C. to 150 C. The resistance between the two members via the molten metal is in the range 0À001 microohms to 1 ohm. As shown, conductive shafts 1, 2, connected to conductive pulleys 4, 3, are mounted coaxially in bearings 5, 6, held in insulating sleeves 8, 9, within a fixed outer casing 7. The shafts are electrically connected through metal 10 which, when molten is trapped in a space between them by an 0-ring seal 11 mounted on a bearing 12. A heating element 13, which rotates with shaft 1, is supplied with current by means of brushes 14 and sliprings 15. Other forms of heating element may be used. An expansion chamber 16 and a greasing duct 17 are also provided. A list is given of suitable alloys for use in the device.