baber/WOPTO huggingface dataset:
Patent GB-1442136-A (GB)
Title: Carboxyamide-sulphonamide polycondensates
IPC: C08G69/32
Filed: 1973-09-12
Abstract: 1442136 Aromatic poly-(carbonamide-sulphonamides) RHONE-POULENC SA 12 Sept 1973 [13 Sept 1972] 42907/73 Heading C3R An aromatic polyamide-sulphonamide consists essentially of recurring units where each Ar is a divalent aromatic radical containing one or more benzyl rings and n is 0 or 1. It may be prepared by reacting a diacid in its chloride with a diamine Such diamines may be prepared from an aromatic diamine and acid amino-arylsulphonic acid or chloride or an arylene disulphonic acid dichloride. The polymers are stated to be resistant to temperatures as high as 350‹ to 450‹ C. but soluble at concentrations up to 40% by weight in organic solvents such as dimethyl formamide or acetamide or N-methyl pyrrolidone without the addition of inorganic salts; the solutions can be cast or extruded to give heat resistant films or fibres.
Patent GB-936235-A (GB)
Title: Process for the manufacture of unsaturated steroids
IPC: C07J1/00
Filed: 1959-12-18
Abstract: D 9,11-Steroids are prepared by heating sulphonic acid esters of 11a -hydroxy-steroids with a lithium halide in a basic solvent under anhydrous conditions.  An alkali metal or alkaline earth metal carbonate may also be present.  Suitable solvents include bases such as pyridine and collidine and dialkyl formamides.  Steroids of the androstane, pregnane, spirostane, cholestane or ergostane series may be used.  Specified starting materials are the sulphonic acid esters of the following 11a -hydroxy steroids: testosterone with or without a 17a -methyl substituent and/or a D 1 double bond, progesterone, corticosterone and its 21-esters, hydrocortisone and its 21-esters, prednisolone and its 21-esters, and 11a :17a :21-trihydroxy- 16a -methylallopregnane-3:20-dione and the corresponding D 4, D 1 and D 1,4 analogues and 21-esters thereof, and 3b -acetoxy-11a -hydroxy-5a -spirostan. Esterifying acids include alkane sulphonic acids and benzene and substituted-benzene sulphonic acids.  Examples are given and the preparation of 11a -mesyloxy-17a -methyl-testosterone, 11a -tosyloxy- and 11a -mesyloxy-17a -hydroxy-16a -methyl- 21-acetoxy-allopregnane - 3:20-dione, D 1:4-11a -mesyloxy- 16a -methyl-17a -hydroxy 21-acetoxy-pregnadiene-3:20-dione and 3b -acetoxy-11a -mesyloxy-5a -spirostan from the corresponding 11a -hydroxy steroids and the appropriate acid chlorides is also described.  Specification 809,114 is referred to.
Patent GB-1153906-A (GB)
Title: Adhesive Cement For EPDM Rubbers
IPC: C08F210/00
Filed: 1966-09-28
Abstract: 1,153,906. Polymer compositions. B. F. GOODRICH CO. 28 Sept., 1966 [29 Sept., 1965], No. 43221/66. Headings C3P and C3R. Adhesives for ethylene/propylene/diene rubbers comprise (1) a copolymer of dicyclopentadiene and a C 2-12  α-olefin and (2) a resorcinol formaldehyde resin. The olefin may be ethylene, propylene, butene- 1, octene-1 or dodecene-1. The adhesives may be used for bonding rubbers to textile materials, particularly rayon and nylon tyre cords. In an example a copolymer of ethylene and dicyclopentadiene is dissolved in benzene, the solution is dispersed in water containing an alkylaryl sulphonate emulsifier and the solvent is then stripped, the resulting latex is mixed aqueous solutions containing resorcinol-formaldehyde resin and ammonium hydroxide, and formaldehyde.
Patent GB-1486800-A (GB)
Title: Slotted ingot mould assembly
IPC: B22D7/10
Filed: 1975-10-08
Abstract: 1486800 Hot tops RESIL PROCESSES Ltd 8 Oct 1975 [8 Oct 1974] 43535/74 Heading B3F To facilitate the removal of a cast ingot from an ingot mould the mould upper end is provided with diametric slots to permit the insertion of lifting tongs and in order to prevent spillage of the molten metal from these slots during the casting process and to control the cooling process hot top tiles are provided to block off the slots, each tile is provided with a first surface which contacts the melt and a second surface which contacts the mould, the second surface has recessed therein a metal backing plate so that the exposed surface of the plate and the surface of the tile are substantially continuous. The plate may be made of mild steel and is nailed to the tile. The tile is formed of a refractory material such as that disclosed and claimed in Specification 1,300,954, including a flux of one or more of felspar, nepheline, syenite or perlite.
Patent GB-1534486-A (GB)
Title: Noise reduction system for television signals
IPC: H04N9/64
Filed: 1977-10-19
Abstract: 1534486 Television receiving systems CBS Inc 19 Oct 1977 [10 Nov 1976] 43539/77 Heading H4F Noise in a received video signal is reduced by adding a variable fraction of the received video to a variable fraction of the video which has been delayed by one frame. The fractions are changed in unison in accordance with the difference, i.e. the image motion, in corresponding parts of the received and delayed signals. The sum of the fractions is one. In one arrangement, Fig. 2 (not shown), if the amplitude difference of the signals exceeds a given value the delayed signal is not added to the received signal. For differences smaller than value the fraction of the delayed signal added is increased as the difference decreases. This has the effect of increasing the sin ratio where the image has less motion and noise would otherwise be more noticeable. In another arrangement, Fig. 5 (not shown), the fractions vary according to the number of frames that have occurred since the previous amplitude difference that exceeded a given value. The signals may be digital.
Patent GB-1223239-A (GB)
Title: Extended discharge systems for electrostatic precipitators
IPC: B03C3/019
Filed: 1969-09-03
Abstract: 1,223,239. Electrostatic precipitators. SLICK INDUSTRIAL CO. 3 Sept., 1969 [4 Sept., 1968], No. 43656/69. Heading B2J. An electrostatic precipitator wherein a plurality of discharge electrodes 16 are interposed between a plurality of spaced collection plates 12 is characterized in that further discharge electrodes 40 are disposed downstream of the main electrodes and further collection plates 42 are disposed downstream of the electrodes 40. Points 44 are provided on the electrodes 40 so that a directional electrostatic field extends substantially in the direction of flow of fluid through the precipitator.
Patent GB-1118816-A (GB)
Title: Valves
Inventor: FREEMAN FRANK GEORGE
IPC: A61F2/24
Filed: 1965-10-15
Abstract: 1,118,816. Prosthetic heart valves. JOSEPH LUCAS (INDUSTRIES) Ltd. 15 Oct., 1965, No. 43752/65. Heading A5R. [Also in Division F2] A prosthetic heart valve comprises a ring- like part adapted when operatively in use to be secured in a heart valve orifice, a generally conical support structure carried by the ring- like part, and a plurality of flaps connected to the ring-like part and arranged on the outside of the support structure to cover a plurality of respective openings in the support structure. The flaps, which collectively have a generally conical form. are connected to the ring-like part in such a manner that a swirling motion is imparted to fluid flowing through the ring-like part when a pressure is applied to the valve to separate the flaps from the openings. As illustrated in Figures 1 and 2, ring-like part 10 is formed integrally with a hollow conical portion which is split to form four generally triangular segmental flaps 11 which are connected to the ring-like part and the flaps whereby a swirling motion is imparted to fluid flowing through the ring-like part. Situated within the flaps is a separate support structure 12 in which are four segmental openings 13 respectively covered by the flaps. The base of the support structure engages in a recess 14 in the interior surface of the ring- like part. The parts of the valve preferably are made from synthetic resinous materials, the support structure being more rigid than the remainder of the valve: the materials should be physiologically inert and non-toxic and should have a density approximating the density of blood.
Patent GB-1236148-A (GB)
Title: Methods of exposing and processing radiation sensitive elements
IPC: C25D5/02
Filed: 1968-05-21
Abstract: 1,236,148. Resistors; capacitors; - circuit assemblies. TEEG RESEARCH Inc. 21 May, 1968 [14 June, 1967], No. 44004/69. Divided out of 1,234,302. Headings H1M, H1R and H1S. [Also in Divisions G2-G3] Resistors are produced by image-wise exposing a photosensitive material comprising a metal layer and a photosensitive layer which on exposure reacts with the metal layer at the boundary thereof to give a product with a resistivity between that of the metal and photosensitive layers. The. amount of reaction is proportional to the exposure and both layers may be completely reacted if there is sufficient exposure. The metal may be silver, copper, lead, columbium, iron, aluminium, chromium or nickel. The other material may:be a mixture of sulphur arsenic and iodine or arsenic, sulphur and bismuth. Alternatively it may be a metal halide arsenide, selenide, telluride, arsenic trisulphide or arsenic pentasulphide and sulphurselenium mixtures or iodine, selenium, tellurium or thallium. To produce a resistor of desired value R x , the metal layer 212 of the photosensitive material 210 is connected via terminals 216 and 218 to a Wheatstone Bridge circuit containing meter 246. The material 210 is exposed to a mask 224 using lights 220 and when sufficient metal has reacted to give resistance R x  and the bridge is balanced, meter 246 opens switch 248 cutting off lights 220. Alternatively, resistors may be produced by connecting one terminal to layer 212 and one terminal to layer 214. Capacitors of desired impedance are produced by a similar exposure control, metal layer 212 being coated with a dielectric layer and a further metal layer to which one of the terminals is connected (see Fig. 6, not shown). Printed circuits.-A material comprising photosensitive layer 214, metal layer 212, dielectric layer 260, metal layer 212, and photoconductive layer 214 (if Fig. 12) is exposed on each side to different masks. Side 280 is exposed to mask which causes complete reaction between layers 212 and 214 in areas 282, partial reaction in areas 290 to produce resistors 306 and 308 and no reaction in areas 286 to produce conductive leads connected -to terminals 294, 292 and 296 and to plate 302 of capacitor 304. Side 284 (Fig. 13) is exposed to a mask to produce complete reaction in areas 288, partial reaction in areas 290 to produce resistors 314 and 316, and no reaction in areas 286 to produce conductive leads to terminals 298 and 300 and plate 312 of capacitor 304. The complete printed circuit is shown in Fig. 14. The various resistors, capacitors and circuits are either coated with an opaque shellac or varnish or sheathed in an opaque sheath to prevent exposure of the unexposed or partly exposed areas.
Patent GB-1397803-A (GB)
Title: Resistance wire assembly and method of making same
IPC: G01K7/02
Filed: 1972-09-25
Abstract: 1397803 Temperature sensitive resistors ROSEMOUNT Inc 25 Sept 1972 [4 Oct 1971] 44211/72 Heading H1K A resistance wire assembly for temperature sensor use, comprises an inner core or tube 12, of e.g. stainless steel, a woven glass fibre insulating layer 13, a coaxially mounted, by swaging, tube 14 also of, e.g. stainless steel, which is insulated from outer tube 16 by insulating layer 15. A resistance wire 20, is wound around a portion of tube 14, the tube 16 having been removed by a suitable process, and is connected at one end to the tube 14 by welding, the insulation between tube and wire having been removed, and at its other end to push-fit metal ring 24, electrically connected to, and mounted on inner tube or core 12, and insulated from tube 14 by ring 22. The tube 14 and core 12 form the primary electric leads for the resistance element, which is insulated from cover 28 by a metal oxide, e.g. aluminium, which fills cavity 29 which is sealed by end cap 30, welded to cover 28. Tube 16 is welded to cover 28, so that the tube is hermetically sealed. At the other end of the assembly the core 12 and tube 14 are exposed and leads 40 are attached, two to each, connecting the resistance element to a bridge network. A simple mounting for the sensor (Fig. 5, not shown) comprises a threaded collar (46) slipped over tube 16 and welded thereto. Another type of mounting, Fig. 6, comprises coupling member 50, with spring 52 acting against shoulders 54, 56 so that sensor surface 57 may be forcefully held in contact with an opposite wall in the mounting structure. In another embodiment, the mounting for element 20 may be tapered such that the inner core 12 comes into direct contact with the element 20 and rings 22, 24 are not required. The method of construction of the assembly is such that each one may be cut to a required length, and the outer layers turned down to allow attachment of the leads 40.
Patent GB-1010324-A (GB)
Title: Improvements in or relating to methods of welding together layers of plastic material, apparatus for use in such method and the article produced thereby
IPC: B29C65/00
Filed: 1961-12-11
Abstract: 1,010,324. Laminates; sealing non-metallic sheet material. INTERNATIONAL ULTRASONICS Inc. Dec. 11, 1961 [Jan. 17, 1961], No. 44279/61. Headings B5K and B5N. [Also in Division H4] Layers of material, including a plastics layer, are welded together under pressure from a vibrating nub driven by ultrasonic means and the penetration of which is limited. The invention has particular application to welding molecularly oriented polyesters and high density polythene but appears to be generally applicable to plastics materials having a coefficient of friction greater than 0À04. The welding of high-density polethylenes to low-density polyethylenes is mentioned as also is the welding of films coated with, for example, photographic emulsion or metal, and the forming of laminates of plastics materials and paper. Continuous seaming or discontinuous stitch welds may be effected by the apparatus and the invention may be combined with a heat sealing process or may be performed in the presence of cooling media, e.g. under water. In a form of apparatus in which the work is held stationary the welding unit is mounted to be traversed manually or automatically and consists of a nub 6 mounted on members 12, 17 connected to a vibrational driving unit that may be a piezoelectric sandwich transducer driven to vibrate at frequencies within the range of 20 to 50 kilocycles. Other apparatus, Fig. 6 (not shown), has arrangements for moving the work beneath the welding tool.
Patent GB-1046357-A (GB)
Title: Word "selecting system" for data storage arrangement
IPC: G06F9/46
Filed: 1964-10-30
Abstract: 1,046,357. Data store address selection. STANDARD TELEPHONES & CABLES Ltd. Oct. 30, 1964 [Nov. 6, 1963], No. 44310/64. Headings G4A and G4C. In an arrangement for selecting addresses in a matrix memory, certain ones of the memory rows store indicator words, each indicator word corresponding to a number of storage rows equal to the number of " 1 " bits stored in the row so that a storage row can be selected by first selecting an indicator word then selecting one of the bit positions storing a " 1 " in that word and hence selecting the desired storage row. The arrangement is applicable to a computer programme interrupt system in which each indicator row of the matrix corresponds to a device which may request an interrupt and bit positions in that row store a " 1 " in accordance with the various reasons for which an interrupt is desired. Since each device may have only a relatively small number of interrupt reasons, i.e. there are only a relatively small number of " 1 "s in each indicator row with the same relatively small number of storage rows, an economy in the selection arrangements is achieved, but the system is readily expandable by adding extra storage rows and corresponding " 1 " bits in indicator rows. The data extracted from the storage row may be used to address the computer programme memory. Fig. 1 (not shown) shows a matrix MM consisting of m indicator rows only. To select an address, an " address word " consisting of two parts is entered into registers AR1, AR2 for the two parts respectively. The contents of the first part in AR1 causes an indicator word to be read out and stored in a p-bit register SD1. The second part in AR2 is translated at Tr to enter in a p-bit register SD2 a p-bit word consisting of all " 0 "s except for a single " 1 " bit corresponding to the desired storage row (not shown). The contents of registers SD1, SD2 are now left shifted, the successive bits being compared in coincidence gates G1-G4. For each detection of a " 1 " in register SD1 corresponding to a " 0 " in register SD2, a " 1 " is added to the contents of the register AR1 (which is a binary counter) this process being continued until the " 1 " in register SD2 is reached. The thus modified contents of the register AR1 is now employed to select the desired storage row (not shown). Various improper conditions, such as the correspondence of the " 1 " in register SD2 to a " 0 " in register SD1 cause an error signal to be produced. The storage rows (not shown) may be part of the matrix MM or may constitute a separate matrix. The matrix MM may be a semi-permanent capacitative store. In a second embodiment (Fig. 2, not shown), the stages A1 to Ap of the register SD1 are not shifted but are translated successively to the code of the register AR2 for comparison.
Patent GB-1347792-A (GB)
Title: Nontraumatic blood pump
IPC: A61M60/851
Filed: 1971-09-27
Abstract: 1347792 Reciprocating pumps TECNA CORP 27 Sept 1971 [1 Oct 1970 2 Sept 1971] 44889/71 Heading F1A A non-traumatic blood pump comprises a tubular membrane 11 in a chamber 25 subjected alternately to air pressure and vacuum via connection 26 to contract and expand the membrane, and inlet and outlet valves 31. The membrane and other pump surfaces contacted by the blood are lined with a material compatible with blood and having microcavities which promote anchoring of biological material from the blood. The valves 31 have fins 37 shaped to cause rotation of the valves during operation, and to prevent turbulence. Membrane 11 has thickened side portions to provide preferential collapsing, Figs.3 and 4 (not shown), the actuating air supply being controlled to prevent touching of the collapsed walls and consequent blood damage. In Fig.5 (not shown), the membrane 11 is integral with inlet and outlet pipes and valve chamber linings. In Fig.6 (not shown), the pump is disposable and has a plastics housing secured by adhesive to an integral membrane and valve chamber assembly.
Patent GB-930306-A (GB)
Title: New benzoxazole compound
IPC: C07D263/58
Filed: 1961-12-14
Abstract: The invention comprises the compound of formula <FORM:0930306/IV(a)/1> and its preparation by reacting 2-amino-5-chlorobenzoxazole with an acetylating agent. 2-Amino-5-chlorobenzoxazole is prepared by reacting 2-amino-4-chlorophenol with cyanogen bromide.  2-Amino-4-chlorophenol is prepared by diazotising aniline, reacting it with p-chlorophenol and treating the product with sodium hydrosulphite.  Pharmaceutical compositions comprise the compound of the formula shown above in association with at least one pharmaceutically acceptable carrier. Suspensions, powders, tablets and capsules of absorbable material are mentioned for oral administration.  The compound is a uricosuric agent.
Patent GB-1240830-A (GB)
Title: Improvements in or relating to indicating instruments
Inventor: RUSSELL MICHAEL KING
IPC: E21B47/022
Filed: 1967-10-05
Abstract: 1,240,830. Inclinometers. SCIENTIFIC DRILLING CONTROLS. Oct. 7, 1968 [Oct. 5, 1967], No.45355/67. Heading G1N. An inclinometer for monitoring the axis of a borehole comprises a number of mutually perpendicular transducers for measuring rotation about the vertical and deviation from the magnetic North. As shown, Fig.2, the transducers are located along the axis AA' of a cylindrical aluminium casing la and consist of two electrolytic inclinometers 8 and two fluxgates 9 measuring along parallel axes perpendicular to the main axis AA'. Each inclinometer 8 comprises a curved, sealed tube 11, Fig. 4 partially filled with electrolyte 12, with end electrodes 14 and a central electrode 15. The two halves of the transducer, forming variable resistors, are connected in an A.C. bridge circuit, the unbalance indicating the angle of twist about the appropriate horizontal axis. Each fluxgate 9 comprises two coils 20, Fig. 5 wound on parallel cores 19 and connected in an A.C. bridge circuit. The normal bridge current saturates the cores for half of each half-cycle, and the axial component of the earth's magnetic field varies this saturation time to produce a second harmonic output from the bridge, which is demodulated to give a D. C. signal voltage proportional to the axial component of the earth's field. The signals from the two inclinometers and the two fluxgates are combined to determine the inclination of the main axis AA' with respect to the vertical and the magnetic North. In another embodiment, Fig.6, deviation of the main axis from the vertical is sensed by a pendulum 67 with a weight 69 at one end, attached to the casing by a rod with a reduced neck portion 68 of square cross-section, each face of which carrying a resistance strain gauge 66. Opposite pairs of strain gauges are connected in bridge circuits to determine angular displacement about two mutually perpendicular horizontal axes. The direction of the main axis relative to the magnetic North is sensed by three mutually perpendicular fluxgates 72, each producing a D.C. feedback substantially equal and opposite to the external field component being measured. For use in a deep borehole the transducer assembly is mounted in a cylindrical casing 57 in a pressure casing 58, and is provided with a slot 60 and pin 62 for accurate angular location. The D. C. signals developed by the transducers are converted to sequential pulses separated by intervals proportional to the magnitude of the signals for transmission to surface equipment, where the pulse intervals are measured by a counter for digital display, and also converted to analogue values for storing or memory devices, e.g. capacitors, and fed into computers where the attitude of the borehole axis is calculated.
Patent GB-1014276-A (GB)
Title: Improvements in or relating to scaffold couplings
Inventor: SMALLWOOD LEONARD GEOFFREY BUC
IPC: E04G7/08
Filed: 1963-11-19
Abstract: 1,014,276. Clamps. BOULTON SCAFFOLDING Ltd. Nov. 16, 1964 [Nov. 19, 1963], No. 45543/63. Heading E2B.  A scaffold coupling for gripping portions of two parallel tubes 36, 30 with the portions in contiguous side-by-side relation, comprises a generally U-shaped body 10 dimensioned to receive the portion of one of the tubes, hooked tongues 14, 15 extending from the sides of the body, each tongue having an inner arm 16 projecting from its associated body side 12 away from the base of the U and an outer arm 17 retroverted relative to the inner arm, the inner arms being spaced to receive the portion of the outer tube, a cover 22 hinged at one end to one of the tongues and a bolt 31 carried by the other tongue and adapted to engage the other end of the cover when the latter engages the other tube, tightening of the bolt forcing the tubes together and the one tube against the base of the U. As shown, the hinge connection for the cover 22 is provided by one of the tongues 15 and a slot 24 in the cover, the slot 24 including a projection 25 which is received in a slot 19 in the tongue 15.
Patent GB-1066068-A (GB)
Title: Stabilized polyolefins
IPC: C08K5/053
Filed: 1964-11-09
Abstract: An olefine polymer is stabilized with a phenolic antioxidant and one or more polypentaerythritols of formula <FORM:1066068/C3/1> wherein n is 1 to 13, e.g. di- and/or tri-pentaerythritol. In examples the phenolic antioxidant is 4,41 - cyclohexylidene - bis - (2-cyclohexyl phenol) and optional additives included are dialkyl thiodipropionate, trilauryl phosphite, zinc stearate and magnesium stearate.