baber/WOPTO huggingface dataset:
Patent GB-1368015-A (GB)
Title: 1-imidazolyl-methanephosphonic acid esters their production and their medicinal use
IPC: C07F9/58
Filed: 1972-08-14
Abstract: 1368015 Phosphonic acid esters BAYER AG 14 Aug 1972 [14 Aug 1971] 37828/72 Heading C2P Novel compounds of the formula in which R is an optionally substituted phenyl ring, R<SP>1</SP> is an optionally substituted phenyl ring or an optionally substituted 5-, 6- or 7- membered heterocyclic radical and R<SP>2</SP> and R<SP>3</SP> are selected from alkyl and cycloalkyl radicals are obtained by either (a) reacting an ester with thionyl bis imidazole in the presence of a diluent or (b) by reacting an ester wherein Hal is Cl or Br with imidazole in the presence of an acid binding agent. The free imidazole derivatives of Formula I can be converted to their salts, e.g. salts with hydrohalic acids, mono- or di-carboxylic acids, hydroxycarboxylic acids, 1,5-naphthalenedisulphonic acid and tribasic inorganic acids, e.g. H 3 PO 4 , and the invention also includes such salts per se. When the radical R<SP>1</SP> is a heterocyclic radical it is preferably a pyridyl, pyrimidinyl, furyl, pyrryl or thienyl radical. The products are useful as anti-mycotic agents and may be used as active ingredients in conventional pharmaceutical compositions which may be in dosage unit form. The phosphorus compounds of general Formula II above are obtained by reacting a keto compound of the formula (R)(R<SP>1</SP>)C = O with a compound of the formula and may be converted to a halo compound of Formula (IV) by reaction with a halogenating agent, e.g. a phosphorus pentahalide, thionyl chloride or bromo-succinimide, optionally in the presence of a solvent, e.g. CCl 4 .
Patent GB-1269570-A (GB)
Title: Improvements relating to earrings
Inventor: WHATLEY BLANCHE EDITH
IPC: A44C7/00
Filed: 1969-07-29
Abstract: 1,269,570. Earrings. B. E. WHATLEY. 29 July, 1969, No. 37991/69. Heading A3H. An earring comprises a body member clip 24 having a U-shaped portion arranged to extend around a lower portion of an ear lobe and having a first limb having ornamental means 26 thereon and a second limb for engaging the rear portion of the ear, this limb so curved as to form a socket 38 and restricted opening 40 to grip the ear. The clip is of spring metal or plastics material.
Patent GB-893815-A (GB)
Title: Improvements in or relating to drills or other machine tools
Inventor: COOPER ROY
IPC: B23Q5/16
Filed: 1957-12-07
Abstract: 893,815. Expanding wheel gear. COOPER BROS. (STOCKPORT) Ltd. Nov. 10, 1958 [Dec. 7, 1957; Aug. 20, 1958], Nos. 38124/57 and 26737/58. Class 80 (2). In a vertical axes V-belt expanding pulley gear for drills or other machine-tools of the kind wherein a variable doublecountershaft pulley assembly 31, having two connected inner flanges 36 free on a sleeve 33 spacing the two outer flanges 34, 35, is mounted on a hand lever 21 which is turned on a pivot pin 18 to swing the countershaft pulley transversely between invariable fixed driving and driven pulleys 17, 14 to vary the gear ratio, belt alignment is maintained by simultaneously moving the lever 21 axially by cam means comprising a radial peg 19 in the pivot pin 18 engaging a helical slot (not shown) in the boss 20 of the hand lever 21. Positioning means may comprise a leather or serrated pad 25 adjustably urged, by a screw 27 acting through a rubber block 23 and metal washers 24, into engagement with a plain or serrated cylindrical surface 28 on the machine casing, as shown, or a releasable ratchet member at 25 engaging a curved rack at 28.
Patent GB-366661-A (GB)
Title: Improvements in continuous reheating furnaces for ingots, billets and the like
IPC: F27D3/02
Filed: 1930-12-18
Abstract: 366,661. Metal - heating furnaces. GRYCZ, J., 3, Strada Princ Elisabetha, Resita, Roumania. Dec. 18, 1930, No. 38160. [Classes 51 (i) and 51 (ii).] Pulverulent-fuel furnaces.-The watercooled ingot tracks 2 of a continuous reheating furnace are spaced from the floor of the furnace by supporting them on a water-cooled structure 9 consisting e.g. of longitudinal or transverse pipes. The two cooling systems are kept separate, and their anchorages 10, 11 are embedded in the brickwork structure. In the furnace shown heat is supplied to the undersides of the ingots from a combustion chamber 1 fired by a powdered fuel burner delivering through the aperture 15, the arrangement being such that the flame reverses its direction before contacting with the ingots. In a modification the combustion chamber is at one side, and the burner delivers transversely across the furnace.
Patent GB-1450840-A (GB)
Title: Cell culture systems
IPC: C12M3/04
Filed: 1974-05-15
Abstract: 1450840 Aerating liquids INSTRUMENTATION LABORATORY INC 15 May 1974 [31 May 1973] 38618/75 Divided out of 1450839 Heading B1C [Also in Divisions C6 and Fl]  Tissue cells being cultured in detachable culture chambers 50, Figs. 1 and 5, are perfused with nutrient medium circulated from a manifold structure 18, Figs. 1 and 8, by individual peristaltic pumps 16 through a supply conduit 74 to the chamber and a return conduit 76 therefrom. Four chambers may be mounted on each series of supports 12, 14. The chambers consist essentially of a folded sheet 52, Fig. 4 of fluorinated ethylene-propylene copolymer measuring 24 ft by 2¢ in. when folded, with inlet and outlet connections 64, 68 at the extremities. The polymer material is impermeable to liquids but permeable to gases, and is chemically etched on the inner surface to provide a surface to which cells to be cultured adhere. Each chamber is wound with a spacer interlayer 72 on a reel 70 as shown in Fig. 5. The peristaltic pumps 16, Figs. 1 and 6, incorporate frustoconical tube locks 80, the bore 82 of which is flared at the ends to promote smooth flow. The supply and return conduits 74, 76 terminate in needle tips 108, Fig. 8, embedded in an elastomer (gum rubber) sealing member 110. When required to be connected to the manifold tubes 138, 140, which also are of elastomeric material, the sealing member 110 is inserted into a receptacle 120 on the manifold structure and the needle tips 108 of the conduits are forced into the respective manifolds by moving body member 102 along guide rod 112. Fig. 11 illustrates the arrangement of valves 162, 164 and 170 required for initially filling the manifold tubes 138, 140 with nutrient medium, circulating the medium between them via line 74, chamber 50 and line 76, and discarding circulated medium (when required). Rods or bars 190 cooperate with the corresponding back-up surface 192 to seal the tube between them. Fig. 12 depicts the valve housing for the valve system 164. During the culturing the incubator 10, Fig. 1, within which the chambers are housed, is held at the required conditions of temperature and humidity. The pH of the circulating medium is regulated by varying the amount of carbon dioxide supplied to the incubator in response to signals from the pH sensor 166, Fig. 11. Oxygen and nitrogen are also supplied to the incubator, the latter serving to maintain the desired partial pressure of oxygen. When, due to the accumulation of components such as lactic acid in the circulating medium, it becomes impossible to maintain the desired pH by reducing the amount of carbon dioxide in the chambers, the valves depicted in Fig. 11 are actuated to effect a replacement of the nutrient medium being circulated.
Patent GB-1510608-A (GB)
Title: Process for the heat-treatment of railway switch parts
IPC: C21D9/04
Filed: 1976-09-17
Abstract: In order to take more account of the cross-sectional shape in heat treatment and to be able to treat the switch components continuously under control, the rail surface is first heated down to a depth of up to 30 mm to the austenitisation temperature. The austenitised rail surface is then quenched by blowing with compressed air. In a first stage, quenching is effected from the austenitisation temperature down to just above the region of the perlite transformation at 650 to 450 DEG C by strong blowing and subsequently, in at least one second stage, the quenching is continued by blowing which is restricted as compared with the first stage in such a way that the temperature range set on the rail surface before the perlite transformation is not exceeded and this cooling intensity is retained in the region of the fastest perlite transformation until the perlite transformation is complete. Preferably, the compressed air is blown only from above onto the switch components standing on the foot and moving continuously forwards. The width of each compressed air jet here corresponds to at least the maximum width of the switch component. <IMAGE>
Patent GB-894322-A (GB)
Title: Improvements in or relating to chain conveyors
Inventor: SKINNER NORMAN PHILIP
IPC: B65G39/20
Filed: 1959-11-16
Abstract: 894,322. Chain conveyers. BAGSHAWE & CO. Ltd. Oct. 27, 1960 [Nov. 16, 1959], No. 38736/59. Classes 78 (1) and 104 (2). The closed-loop or C-shaped links 1 of a conveyer chain are each clamped between a pair of plates 4 by a pin or bolt 6 which also constitutes the axle of a roller or rollers 9 mounted on each side of the link for engagement with a guide track 12 for the chain. As shown in Fig. 3, the link is C-shaped and is drilled at 5a near each of its ends adjacent the gap 2 of the C to receive spring pins (not shown) which pass through like holes in the plates 4 to locate them relative to the link. A hanger 10 mounted on the pin 6 depends through the gap 2 for attachment to a load in an endless conveyer or for providing the driving dog whereby separate article carriers are propelled.
Patent GB-1454587-A (GB)
Title: 6-trichloroacetamido-penicillanic acid derivatives and their preparation
IPC: C07D499/04
Filed: 1974-09-05
Abstract: 1454587 6-Trichloroacetamido-penicillanic acid derivatives RHONE-POULENC SA 5 Sept 1974 [6 Sept 1973] 38881/74 Heading C2C The invention comprises compounds of the formula wherein R is an ester radical. They may be obtained by either oxidizing the S-atom of a compound of the formula to a sulphoxide group, with, e.g. H 2 O 2 , NaIO 4  or an organic per-acid; or reacting a compound of the formula wherein R 1  is PhCH 2  or PhOCH 2 , with or a derivative thereof. Compounds of Formula II may be obtained either by reacting a compound of the formula with Cl 3 CCOOH or a derivative thereof or by reacting an imino-chloride of the above compound with an alkali metal salt of Cl 3 CCOOH. Compounds of Formula III may be obtained either by oxidation of a compound of Formula IV or by esterification of a compound of the formula
Patent GB-841785-A (GB)
Title: Screw-thread rolling head
Inventor: SANDERS JOHN NOEL
IPC: B21H3/04
Filed: 1957-12-16
Abstract: 841,785. Rolling screw-threads. HERBERT Ltd., A. Nov. 28, 1958 (Dec. 16, 1957], No. 38985/57. Class 83 (4). A screw-thread rolling head comprises inclined ridged rollers 20, with each roller j ournalled in a member 38 slidable in a composite portion 27, 34 along a tangent to a common circle about the axis of the head, and a further portion 21 rotatable with the composite portion but relative to which the composite portion is movable axially between two positions, the portion 21 carrying means coacting with the members 38 so that in one position of the composite portion the rollers are urged into engagement with the work against biasing means which, when the two portions 21 and 27, 34 are moved relatively and axially to the second position by interaction of the work on the rollers, move the members 38 to disengage the rollers from the workpiece. The roller-carrying members 38 are mounted between an assembly which comprises a front plate 34 and an intermediate plate 27 and are slidable along guide surfaces 36a and 37a. The intermediate plate 27 and the back plate 21 are both splined to a hollow shank 23 of the head for rotation together. A camplate 49 fixed by screws 25 to the back-plate 21 is adjustable by screws 57 engaging bosses 51 of the cam-plate to accommodate varying diameters of workpiece in the head. On completion of a length of thread the assembly 34, 27 is pulled away axially from the back-plate 21, against springs 30, Fig. 2, not shown, by the action of the thread on the rollers until followers 45 depending from the members 38 rise sufficiently for projections 56 on the cam 49 to engage in the steps 48 of the followers. At this point a spring-biased ring 26 having slots 52 engaging the steps 48 move the followers 45 to the left from the position of Fig. 7 to the position of Fig. 6 so that the roller-carrying members 38 move tangentially to disengage the rollers from the work. The rollers are re-set in the operative position by manual rotation of the ring 26 against the spring bias so that springs may return the assembly axially to abut the ring 26, as shown in Fig. 7. The set-up of the rollerhead is indicated on a scale 58 on the plate 27.
Patent GB-1274133-A (GB)
Title: Improvements in or relating to methods of making and preserving stuffed pancakes
Inventor: LARZUL JOSEPH
IPC: A21D13/08
Filed: 1970-08-14
Abstract: 1,274,133. Stuffed pancakes. J. LARZUL. 14 Aug., 1970 [27 Aug., 1969], No. 39271/70. Headings A2B and A2D. A method of producing and preserving stuffed pancakes comprises intimately mixing dough and stuffing before. cooking, said stuffing being used in the greater proportion and said dough only being used as a binder, the mixture then being cooked on a metal plate, provided with recesses having the dimensions of the pancakes, heated to 110-180‹C and the pancakes thus obtained, which have a diameter of 3 to 4 inches, being stacked in containers which are then hermetically sealed and sterilised. The stuffing preferably comprises the flesh of fish, crustacea, shell-fish, poultry, offal, molluscs, fruits, vegetables or cheese. A suitable plate is shown in Fig. 1, which plate is provided with recesses 2. The pancakes, after placing in a container may be covered with a protective substance such as butter sauce or jam.
Patent GB-1013719-A (GB)
Title: Improvements in or relating to diaphragm pumps
Inventor: MERRILL IAN NUTTALL
IPC: F04B11/00
Filed: 1962-10-17
Abstract: 1,013,719. Linkwork. MERNIL PUMPS Ltd. Sept. 20, 1963 [Oct. 17, 1962], No. 39285/62. Heading F2K. [Also in Division F1] A pump piston 24 is operated from an eccentric by a lever 74 pivoted at 68, the position of a sleeve 72 connecting the eccentric rod 28 to the lever 74 being adjusted along a screwed portion of the lever 74 by nuts 76, 80 to vary the stroke of the piston.
Patent GB-924684-A (GB)
Title: Method of, and apparatus for, the winning, more particularly, of thin seams in semi-steep to steep measures by means of a plough
IPC: E21C35/16
Filed: 1959-11-19
Abstract: 924,684. Mining. GEWERKSCHAFT EISENHUTTE WESTFALIA. Nov. 19, 1959 [Nov. 27, 1958], No. 39299/59. Class 68 (1). Coal is mined in thin seams in semi-steep to steep measures by a plough which is traversed along guide rails, the plough and guides being pressed against the coal face by the pressure exerted on a waste-retaining mat. Fig. 1 shows, in plan, a plough 26 traversed along the coal face 21, of a relatively steeply inclined seam, on guide rails 13, 14. In Fig. 2, transverse tubes 12 rest upon the floor 11 of the face gallery 10 and are held down by plate-like extensions 19 which extend under the waste 15 and under the retaining mat 20. Tube lengths are secured end to end on the transverse tubes 12 to form the guide rails 13, 14, the rail 14 being disposed against the coal face 21 to prevent undesirable breaking out. The tubes 12 carry upstanding posts 16 to which trailing props 17 are pivoted, springs being provided to urge the props against the roof 18. The mat 20 is carried by the props and by the posts 16, so that the pressure of the waste on the mat is transferred to the rails 13, 14 and the plough 26. The parts of the guide system 12, 13, 14 are additionally held together by a rope or cable 22 which is stretched along the gallery and is clamped to the said parts by clamps 23, the main weight of the guide frame thus being transmitted to a carriage 25 arranged in a head gate 24. The rope 23 ensures that the face gallery will always be in a substantially straight line. The cutter 31 of the plough 26 is pivoted to cut both ways, and may carry an upwardly directed cutting edge to detach overhanging layers of coal. The cutter includes pre-cutting tools 29 which cut a slot above the guide 14 and a main cutting edge 30 which is arranged to press the coal towards the slot. The return run of the plough chain may be through the tubular guide 13.
Patent GB-1220026-A (GB)
Title: Water-reactive filter element for smoking devices
IPC: A24D3/06
Filed: 1969-08-06
Abstract: 1,220,026. Tobbaco-smoke filters. H-2-O FILTER CORP. 6 Aug., 1969 [7 Aug., 1968], No. 39382/69. Heading A2C. A filter element for cigarettes, cigars and tobacco pipes comprises a housing 11 having resilient, waterproof walls, a mass 12 of smoke-permeable filtering material within each end thereof and, disposed therebetween, compressed absorbent sponge-like material 16 and rupturable containers 15 having a fluid content (e.g. water) releasable into, so as to be absorbed by, the material 16 to cause expansion thereof, the walls of the housing 11 being of reduced diameter at the ends 17 of the housing 11.
Patent GB-1517506-A (GB)
Title: Optical fibres
IPC: C03B37/018
Filed: 1974-09-10
Abstract: 1517506 Coating optical fibres STANDARD TELEPHONES & CABLES Ltd 2 Sept 1975 [10 Sept 1974] 39453/74 Addition to 1333312 Heading B2E [Also in Divisions Cl and G2] An optical fibre is made by: treating the surface of a glass rod or fibre to produce a glass surface layer of lower refractive index than the underlying glass; heating the rod (if used) and drawing down to a fibre; and providing the fibre with a cladding of plastics material of lower refractive index than the untreated glass. The glass surface layer of lower refractive index may be produced by ion-exchange treatment of the core, or by forming a B 2 O 3 -doped layer thereon (e.g. a B 2 O 3 -doped silica layer on a silica core). The doped surface layer may be produced by deposition of B 2 O 3  alone, followed by diffusion of B 2 O 3  into the glass, or by co-deposition of SiO 2  and B 2 O 3 . The deposition is preferably by thermally induced vapour deposition reaction. Preferably a silica rod 1 of 3-5mm diameter is held on supports 3 in a silica reaction tube 2. B 2 O 3  alone may be vapour-deposited by supplying either a mixture of decarborane, argon and oxygen to the tube 2 and heating to 1200- 1400‹C, or a mixture of diborane and CO 2  or N 2 O (also heating to 1200-1400‹C). Instead of heating directly to 1200-1400‹C, the above reactions may be conducted at 350-400‹C and the tube 2 then heated to 1200-1400‹C to allow B 2 O 3  diffusion. SiO 2  and B 2 O 3  may be codeposited from a vapour mixture of decarborane, silane, argon and CO 2  or N 2 O at about 600‹C. Preferably, however, a BCl 3 /SiCl 4  mixture is oxidised (so as to prevent hydroxyl-group formation). The treated rod 1 may be drawn down to 40-200Á diameter, and then coated with polytetrafluoropropene by passing the fibre through a solution of the polymer in methyl ethyl ketone.
Patent GB-1113357-A (GB)
Title: Continuous polycondensation of lactams
Inventor: GUENTHER ERNST
IPC: C08G69/16
Filed: 1965-09-16
Abstract: Lactams having 5-13 ring atoms are continously polymerized at atmospheric pressure in a vertical tube, the top portion of which contains a stirrer, the lactam in a molten state being added to the mixture of lactam and prepolymer at the top of the tube which is at the polymerization temperature.  The top quarter of the tube may be 30-80% wider than the remainder and may contain a regulator for the lactam level and a heating coil.  The remainder of the tube may contain a heat exchanger and a means for achieving uniform flow in the melt, e.g. a series of gratings.  The lactam, e.g. e caprolactam may contain up to 15% water and other additives, e.g. pigments, catalysts, fillers, master batches and stabilizers.  The polymerization temperature may be 240-280 DEG C.
Patent GB-903221-A (GB)
Title: Improvements relating to extensible supports for drawers, shelves and other slidablestructures
Inventor: TOWNSEND CLAUDE MORTIMER
IPC: A47B88/493
Filed: 1958-12-09
Abstract: 903,221. Drawers. AUTOSET (PRODUCTION) Ltd. March 9, 1960 [Dec. 9, 1958], No. 39591/58. Class 52 (1). In a drawer slide arrangement a carcase strip 6 is secured to the interior side wall of a cabinet, a drawer slide 7 slides thereon by means of rollers 8, 12 fixed to the slide 7 and rollers 10 carried on strip 6 and the drawer is held open in a predetermined position by means of a gravity latch 15 consisting of a lever pivoted at 16 to an extension 11 of slide 7 and having latching tongues 17, 18 which engage a slot 19 and lie beyond the outer end 20 of strip 6 respectively when the slide is fully extended, thus preventing further extension or retraction until the latch is manually released. An impact stop 23 prevents rattle of the slide. Specifications 341,745 and 803,331 are referred to.
Patent GB-987678-A (GB)
Title: High frequency electron tube apparatus
IPC: H01J23/46
Filed: 1961-11-06
Abstract: 987,678. Klystrons; cavity resonators. VARIAN ASSOCIATES. Nov. 6, 1961 [Nov. 8, 1960], No. 39712/61. Headings H1D and H1W. High frequency electron tube apparatus, e.g. a multi-cavity klystron, comprises a cavity resonator 15 having opposed end walls 25, 26 and a surrounding side wall 23, a pair of axially aligned drift tubes 10, 11 extending axially of and into the cavity from the end walls and defining an interaction gap therebetween, and an inductive tuning structure 31 having a pair of finger portions 41 spaced apart within the cavity in a direction along the axis of the drift tubes and each disposed adjacent one end wall of the cavity, the tuning structure being translatable in a direction transverse to the axis of the cavity toward and away from the drift tubes so as to displace the high intensity magnetic field around the drift tubes near their junction with the end walls. The ends of the tuning structure are slidably mounted in slightly-spaced relation relative to the end walls by means of non-metallic, e.g. sapphire, bearing members, and the length a of the recess between the finger members is approximately twice their depth b. Input and output couplers to the tube are in the form of stepped inductive loops 19, 21, the coupling obtained at the high frequencies being a function of the distance c whilst the coupling at low frequencies being a function of the distance d. This shape of coupling loop enables the impedance match between the cavity and the loop to be maintained throughout the tuning range. The drift tubes are cooled by passage of a coolant through annular channels 27, and the final drift tube 12 has longitudinal cooling channels 29. Specifications 927,471 and 987,679 are referred to.