baber/WOPTO huggingface dataset:
Patent GB-167096-A (GB)
Title: Machine for cutting grooves on the peripheries of rolls
IPC: B23D5/02
Filed: 1920-08-14
Abstract: 167,096. Stacey, F., and Parsons, T. C. Aug. 14, 1920. Lathes; indexing.-In a machine for cutting helical grooves on a roll a, Fig. 1, of the kind in which the roll is partially revolved while being traversed against a stationary chaser e, means are provided for indexing the roll for each succeeding traverse comprising a ratchet-wheel with a number of small teeth and a pawl with several corresponding teeth adapted to engage the wheel simultaneously. The roll a is mounted on a reciprocating saddle c, and is partially rotated during each traverse by means of an oscillating member h carrying a worm g<2>, Fig. 2, meshing with a worm-wheel g, the member h being oscillated by means of a toothed quadrant h<2> from a vertical rack i. A shaft l carried by the member h is geared to the worm shaft and carries the ratchet-wheel m, which is operated by the pawl n carried by an arm n<2> loose on the shaft l, and adapted to be rocked by contact with resilient stops s, t adjustably attached to a fixed slotted bracket u, adjustable stops o, q being also provided on the member h.
Patent GB-455875-A (GB)
Title: Improvements in or relating to the unwinding of textile threads
IPC: B65H49/06
Filed: 1935-08-24
Abstract: 455,875. Creel supports for cakes of rayon &c. NORTH BRITISH RAYON, Ltd., 6, Clement's Inn, Strand, London, and HARTLEY,W.,Boundary Bank, and KNIGHT, A. R., 69, Parkside, both in Jedburgh, Roxburghshire. Aug. 24, 1935, No. 23762. [Class 120 (ii)] A support for a cake of artificial thread during unwinding is formed from a single length of wire joined at the ends and bent into a series of loops which form alternately upright members 1 and outwardly extending members 2. The diameter of the circle of loops 1 is slightly greater than the diameter of the cake to be supported. The loops 1 may be at right angles to the loops 2 or be inclined inwardly as shown.
Patent GB-899796-A (GB)
Title: Age-resistant cross-linked ethylene polymers
IPC: C08K5/3437
Filed: 1960-07-07
Abstract: Curable compositions comprise an ethylene polymer, 0,1 to 10% by weight of the polymer of a heat-activated ethylene polymer cross-linking agent and 0,05 to 5% by weight of the polymer of symmetrical di-b -naphthyl-paraphenylene diamine.  The cross-linking agent may be dicumyl peroxide, bis(a -methyl-a -ethylbenzyl) peroxide, bis(a ,a -diethyl benzyl) peroxide, bis(a ,a -dipropyl benzyl) peroxide, bis(a ,a -dimethyl naphthyl-methyl) peroxide, di-(tertiary butyl) peroxide, di(tertiary amyl) peroxide, tertiary-butyl-tertiary-amyl peroxide, tertiary-butyl-pentamethyl ethyl peroxide, tertiarybutyl-pentamethylpropyl peroxide or preferably 2,5-bis(tertiary butyl peroxy)-2,5-dimethyl hexane which may be deposited on a carrier, e.g. silica.  The compositions may also contain fillers, e.g. carbon black, silica, alumina, silicates, carbonates and oxides; lubricants; antistatic agents; dyes and blowing agents.  They may be cured by heating to give age-resistant cross-linked ethylene polymers.ALSO:2, 5 - Bis (tertiary butylperoxy) - 2, 5 - dimethyl hexane may be prepared by heating 2, 5 - dihydroperoxy - 2, 5 - dimethylhexane with tertiary butanol in the presence of sulphuric acid.
Patent GB-512196-A (GB)
Title: Method of preparing pertussis toxin and toxoid
IPC: A61K39/10
Filed: 1938-08-12
Abstract: 512,196. Toxins and the like. LEDERLE LABORATORIES, Inc. Aug. 12, 1938, No. 23806. Convention date, Aug. 19, 1937. [Class 81 (i)] Pertussis (Whooping cough) toxin or Toxoid is prepared by growing cultures of pertussis bacilli in a medium of soluble-starch broth, vegetable extract broth or semi-solid agar, separating the bacilli from the culture medium by filtration and preserving the filtrate for use as a toxin or detoxifying it to form a toxoid. The bacilli are cultivated for about 48 hours at a temperature of 37‹C. under an atmosphere of about 1 part of carbon dioxide and 4 parts of oxygen by volume. The detoxification is effected when desired bv the addition of a small amount of formalin to the filtered solution, about 0.3 per cent. of 40 per cent. strength, and keeping the mixture at about 40‹C. for two to three weeks.
Patent GB-861757-A (GB)
Title: Improvements in tabulator stop assembly
IPC: B41J21/02
Filed: 1957-07-26
Abstract: 861,757. Typewriters &c. ROYAL McBEE CORPORATION. July 26, 1957 [Sept. 19, 1956], No. 23816/57. Class 100(4) A tabulator stop assembly with an elongated stop mount has a coiled spring 13, extending the length of the mount and backed by a flexible rubber or synthetic backing 14, which cooperates with detents 12 on stops B to hold them in a projected or retracted position. Stops B are set by a setting lever C and are engagable by a selected one of the ten frame mounted stop blades D. A roller e on a lever E pushes back the projected stops by wiping them in as the carriage moves along. Any stop B may be removed without displacing the rest by detaching screws 16 and retainer 15, lifting spring 13 and backing 14 slightly and pulling the stop out.
Patent GB-969690-A (GB)
Title: Improvements relating to straps and articles made therefrom
Inventor: CURSONS LESLIE FRANCIS DEWDNEY
IPC: A45C13/26
Filed: 1962-06-20
Abstract: 969,690. Straps and bands; suitcase handles. BARROW HEPBURN & GALE Ltd. June 20, 1963 [June 20, 1962], No. 23836/62. Headings A4G and A4X. A composite strap for making suitcase and like handles comprises an extruded plastic strip 1 with lengths of piano wire 4 inserted in tubular beadings 2. To make a handle strips of leather 5 are stitched to the strip and over each end is folded and clamped tightly by a hollow rivet 7 a piece of sheet metal 6.
Patent GB-1312422-A (GB)
Title: Integrated detector circuit
IPC: H04N5/455
Filed: 1971-04-19
Abstract: 1312422 Detector circuits MOTOROLA Inc 19 April 1971 [13 April 1970] 23932/71 Heading H3T  An integrated circuit A.M. detector, e.g. in a colour TV receiver, comprises: a mixer 40, 50, 61, 62 with the modulated input (from I.F. amplifier 11) applied to one input; a limiter 70 to which the modulated signal is also applied; a tuned circuit 84, 85 resonant at the carrier frequency coupled to the output of the limiter; and means coupling the output of the limiter to the other input of the mixer. The mixer is formed as a double balanced circuit. The resonant circuit is parallel tuned to the video carrier frequency and includes a further capacitor to give series resonance at the chroma sub-carrier. The limiter 70 comprises long-tailed pair 71, 72 with hot carrier diodes connected between the collectors.
Patent GB-916373-A (GB)
Title: Method and apparatus for use in determining the effect of substances on animal or plant cells
Inventor: FERRARI ANDRES JR
IPC: G01N33/00
Filed: 1960-07-11
Abstract: 916,373. Biological assay methods and apparatus. TECHNICON INSTRUMENTS CORPORATION. July 11, 1960 [July 14, 1959], No. 24079/60. Class 81 (1). The effect of a substance e.g. a vitamin or antibiotic on cells contained in a live liquid culture, e.g. of schizomycetes, saccharomycetes or bacteria, which evolve carbon dioxide, is determined by passing a stream containing said culture and said substance through a zone in which carbon dioxide is evolved therefrom and thence through a zone in which all or a predetermined portion of the carbon dioxide is separated to form a gas stream and measuring the quantity of carbon dioxide in said gas stream. The invention also comprises an apparatus for performing the determination which in the preferred embodiment shown in Fig. 1 comprises conduit 62 for the mixed stream of sample substance and liquid culture, incubator 68, gas/liquid separator 80 and colorimeter 104. A flexible tube pump 10 withdraws the cell-containing liquid and a nutrient from vessels 26 and 24 in refrigerator 28 and these are formed into a stream segmented by inert gas, e.g. air, bubbles by device 46, said gas being carbon dioxide-free. The sample substance is removed in discrete amounts from a rotary supply device 30, mixed with a diluent and segmentised with an inert gas to form a stream which after passing through mixing coil 44 enters one side of dialyser 50 and is discharged therefrom. After mixing in coil 42 the liquid culture enters the other side of the dialyser and the sample substance diffuses thereinto. The culture then enters the incubator comprising a glass tube 68 of sufficient length to provide the required incubation period and thence via a further flexible tube pump 10A to gas/liquid separator 80. Liquid is discharged and the gas is pumped into line 95. An alkaline colour reagent for carbon dioxide from source 99 is mixed therewith in coil 98 and the liquid segments are formed into a liquid column in blender 102 for transmission to the colorimeter. Specifications 817,070, 827,925, 834,635 and 852,615 are referred to.
Patent GB-363380-A (GB)
Title: Improvements in or relating to dobby mechanism for looms for weaving
IPC: D03C1/16
Filed: 1930-08-12
Abstract: 363,380. Loom dobbies. HOLLIDAY, J. and HOLLIDAY, J., 159, Whalley Old Road, HINDLE H., 1, Edmund Street, both in Blackburn, and AITKENHEAD, W. A. C., Cranbrooke, Pleasington, near Blackburn. Aug. 12, 1930, No. 24092. [Class 142 (i).] The rocking lever 1 for operating the draw knives of a dobby is oscillated by means of a pivoted cam lever 6 having a slotted cam 7, the end portions of which are formed concentric with the cam lever pivot 9 to provide a dwell during picking. An adjustably mounted pivot 5 at one end of the lever 6 forms a connection with the usual lifting rod 4 and by adjusting the length and position of the latter a variation in the length of dwell is obtained. An arm 10, provided with a latch 11 for operating the pattern barrel 12, may be keyed to the pivot 9 or otherwise associated with the lever 6.
Patent GB-1220256-A (GB)
Title: Refractory brick lining for rotary cylindrical kilns
IPC: F27B7/28
Filed: 1968-05-21
Abstract: 1,220,256. Refractory linings for kilns. VEITSCHER MAGNESITWERKE A.G. 21 May, 1968 [24 May, 1967], No. 24181/68. Heading F4B. The lining of a rotary kiln is formed from rings of wedge-shaped bricks 1, having grooves 1a in their abutting lateral faces to define channels 2 into which supporting members 3 are inserted. These members 3 project beyond the end face of a completed ring of bricks, so that the bricks of a succeeding ring may be supported on them as they are pushed into place. In modifications, the support members may be twice the length of the brick, in which case (Fig. 4, not shown), they may be formed integral with shim plates as disclosed in Specification 1,129,384.
Patent GB-1494668-A (GB)
Title: Process for the addition of calcium to molten steel
IPC: C21C7/076
Filed: 1975-06-05
Abstract: 1494668 Adding Ca to molten steel SUMITOMO METAL INDUSTRIES Ltd 5 June 1975 24298/75 Heading C7D Calcium is added to steel in containers made of iron, alumium, copper, organic material or fireproof paper in the form of metallic Ca, or Caalloys i.e. Ca-Si, Ca-Si-Ba, by plunging the container into steel at 1480-1800‹C, the steel having been pre-treated to have a S content of less than 100 ppm and a total oxygen content of 100 ppm max. Ca is added to the steel at 0À1-2 kg/ton to maintain a Ca:S ratio of 0À05 to 0À8. A suitable steel may contain C 0À02-0À55% Si less than 0À5% Mn 0À2-2À50 with incidental ingredients and one or more alloying elements, and is preferably Al-killed and further vacuum degassed. Ca may alternatively be added in wire form, the Ca-containing additive being within a hollow cylindrical shell.
Patent GB-1003161-A (GB)
Title: Process of continuously converting molten crude iron into steel
IPC: C21C5/56
Filed: 1962-06-25
Abstract: <PICT:1003161/C6-C7/1> A continuous process for the conversion of crude iron into steel using a gaseous refining agent containing oxygen in free or combined form is carried out in a series of separate reaction zones including at least one prerefining zone and one decarburizing zone in which different temperatures are maintained, and is characterized in that the crude iron is atomized by means of the refining agent on entering at least one of the reaction zones.  The heating of the zones is independent of the refining process.  When only carbon, manganese and silicon are present in the crude iron, one prerefining zone for removal of manganese and silicon will be adequate, but if phosphorus is present it is eliminated by treatment with lime in a second prerefining zone. In these zones the gaseous refining agent may have a low ooygen content, such as air, or a mixture of oxygen with carbon dioxide or steam.  A gas rich in oxygen is used in the decarburizing zone. In the embodiment illustrated in Fig. 1 iron from blast furnace 1 is separated from slag at separator 2 and passes to desulphurizing unit 3 and mixer 4 before entering the first prerefining vessel 5 at 1250 DEG C.  Here the iron entering in a vertical jet is atomized by the gaseous refining agent which may also contain iron ore from nozzle 10, and in this stage about 70% of the manganese and silicon are oxidized.  Slag and metal leave the vessel 5 together, being separated outside the vessel, and the metal passes to vessel 14, also at 1250  DEG C. where it is again atomized by gas from nozzle 15.  In this stage the gas contains iron ore and lime.  After leaving this vessel the metal is separated from slag and passes to furnace 21 where it is heated to 1650  DEG C. by electric or combustion means, and then passes to decarburizing vessel 22 where it is atomized by the gaseous refining agent from nozzle 24. Alternatively by using a strongly oxidizing heating flame heating and decarburizing may proceed simultaneously in vessel 22. In this stage the refining agent may be a mixture of oxygen, steam, carbon dioxide, air and ferric oxide suitably adjusted to prevent oxidation of iron.  The metal, after slag separation, passes to deoxidizing vessel 32 and is again atomized by a stream of non-oxidizing gas such as carbon monoxide containing powdered deoxidants such as magnesium or aluminium from nozzles 30, 31. Alternatively a deoxidizing slag may be used, the slag forming additions being made with the atomizing gas. The steel finally passes to vessels 41 where the necessary alloying additions are made.  The various vessels are normally arranged so that metal passes through them in cascade, but where this is not possible metal may be raised by means of a CO2 gas lift system as at 29. Scrap metal for addition to the system is melted in shaft furnace 42 using carbon monoxide evolved in the refining process.
Patent GB-827302-A (GB)
Title: Improvements in acoustic reverberation arrangements
IPC: G10K15/10
Filed: 1956-08-09
Abstract: 827,302. Reverberation systems. FRANZ, W. Aug. 9, 1956 [Aug. 11, 1955], No. 24412/56. Class 40 (4). In a system for producing artificial reverberation the primary sound is converted into a corresponding electric current which drives the moving coil 6 of a loud-speaker, which coil is cemented to a metal plate 1, so as to produce transverse waves in the plate 1 which are picked up, together with reflected waves, by a piezo-electric transducer 8, the resulting currents being mixed with those of the primary sound in known manner. The reverberation time may be varied at will by damping the plate 1.
Patent GB-302398-A (GB)
Title: Apparatus for cooling and hardening fluid substances
IPC: F28F19/00
Filed: 1927-09-17
Abstract: 302,398. Fyhn, S. Sept. 17, 1927. Joint-making packing. - The joint between the inner and outer cylindrical members a, b of a cooling-drum, is sealed by a ring r of rubber or other packing material with easily fusible metal cast into a dovetail groove 29 above it.
Patent GB-776328-A (GB)
Title: Improvements relating to automatic collet work-grippers and turrets therefor
Inventor: RICHARDSON JAMES ALFRED
IPC: B23B31/20
Filed: 1955-08-26
Abstract: 776,328. Drilling-machine details ; collets. NUFFIELD TOOLS & GAUGES, Ltd. Aug. 26, 1955, No. 24533/55. Class 83 (3). A work-gripper 2 comprises a holder 6 for a collet 5 which is closed by the conical surface of a spring-loaded sleeve 10 movable axially on the holder, and cam-actuated means 16 for moving the sleeve 10 against its spring-loading to open the collet. Six grippers 2 are mounted in a turret 1 between locating bushes 4 for a turret-indexing-plunger, each gripper being brought into successive loading, drilling and unloading stations. Each collet has rubberfilled slots 9 extending alternately from its opposite ends and is located against a conical surface in the holder. The collet is closed by the springs 11, Fig. 3, and balls 21 in pockets in the holder 6 are engaged in cam-dimples 19 in an annular member 16, which is separated from a flange 12 on the sleeve 10 by ball-bearings 15 and is toothed over part of its circumference to mesh with a rack 18. Rotation of the member 16 by the rack 18 disengages the dimples 19 from the balls 21, displaces the member 16 and sleeve 10 and releases the collet. With the gripper at the loading-station, the appropriate rack 18 is operated to close the collet by rotating a cam 26, fixed to an assembly 27, in the opposite direction to the indexing direction of the turret, a fall on the cam passing beneath a follower-roller 25 carried by an arm 23 pivoted at 24 to the turret and against which the rack is pressed by a spring 22. Rubber sealing rings 28 prevent penetration of coolant and swarf.
Patent GB-1575278-A (GB)
Title: Knee-joint endoprostheses
IPC: A61F2/38
Filed: 1978-05-30
Abstract: For the patella embedded in the patellar ligament to be able to execute unimpeded its natural movement from the top outwards and in an arcuate manner downwards and inwards in a knee-joint endoprosthesis, there is provided, in an endoprosthesis composed of a tibial part and a femoral part in which the tibial part has two sliding surfaces separated by a web and the femoral part has two skids (13) held together by a bridge (14), that the stem (6) used for fastening the femoral part on the femur opposite the perpendicular, longitudinal mid-plane (17) of the joint cavity (16) be fastened on the bridge (14) in a manner offset relative to the outer skid (13c). This offset permits the patella to move from the top downwards and in an arcuate manner laterally inwards on the sliding surface formed by the front surface of the bridge and the front surface (13a) of the skids and resembling the anatomy of the natural joint. <IMAGE>
Patent GB-1014687-A (GB)
Title: Method of coating with organopolysiloxane elastomers
Inventor: WILSON JOHN PURDIE
IPC: C08J7/04
Filed: 1963-06-20
Abstract: A process for forming an organopolysiloxane elastomer coating on a polymer derived from an ethylenic hydrocarbon comprises subjecting the said polymer to a surface oxidative treatment, applying a room-temperature-curable organopolysiloxane elastomer composition thereto and allowing said composition to cure to an elastomer.  The polymer may be a polyethylene, polypropylene or polystyrene.  The surface oxidative treatment may include the use of an electron discharge, corona discharge, oxidizing flame, or a chemical treatment such as treatment with ozone, chromic acid or mixtures of sulphuric acid and sodium dichromate.  The organopolysiloxane composition may contain an organopolysiloxane gum in which the organo groups are methyl, phenyl, vinyl, allyl or a mixture thereof.
Patent GB-1499949-A (GB)
Title: Fluid flow ratio control apparatus
IPC: F04B1/00
Filed: 1976-06-15
Abstract: 1499949 Reciprocating pumps GRACO Inc 15 June 1976 [6 Nov 1975] 24700/76 Heading F1A [Also in Division B1] Apparatus for feeding fluids in controlled proportions comprises a plurality of piston and cylinder assemblies 10, 12, 14 connected to respective fluid sources and arranged to feed such fluids upon reciprocation of the pistons, each piston and cylinder assembly being pivotally anchored at one end and having its piston rod pivotally connected to a collar, e.g. 26, which is slidably adjustable along a lever, e.g. 30, said levers being attached to and extending outwardly from a rotatable shaft 35, adjustment of location of the collars on the levers determining the strokes of the associated pistons for a given angular movement of the shaft thereby to control the volumetric flowrates of the fluids fed thereby. Reciprocation of the pistons may be effected by the pressure of the fluids, suitable air-controlled valve means 40, 42, 44 and 60 being provided to effect changeover of the fluid connections at the ends of the strokes of the pistons or alternatively one of the cylinder assemblies may be connected to a source of hydraulic fluid under pressure to drive the other two (or more) through the shaft 35. Shaft 35 carries an arm 50 which actuates air valve 60 through a toggle mechanism in dependence upon the angular excursions of shaft 35.
Patent GB-265264-A (GB)
Title: A four-stroke automatic super-compression and self-scavenging internal combustion engine
IPC: F02B33/26
Filed: 1925-10-05
Abstract: 265,264. Tuckfield, C., and Tuckfield, P. Oct. 5, 1925. Two- and four-strokecycle engines.-A piston valve A subject to the pressure within the combustion chamber and loaded by a spring and atmospheric pressure controls the amount of charge delivered from the crank case. Barometric devices as described in Specifications 129,663, [Class 7 (vi), Internalcombustion engines, Valves &c. for], and 171,533, [Class 114, Ships &c., Propelling &c.], can also be used on the valve to effect its movement in correspondence with the altitude at which the engine works. As applied to a four-stroke engine, air is compressed in the crank case and supplied to the cylinder as a scavenging and super-charge at the ends of the power and suction strokes. The normal inlet and exhaust valves are used. When scavenging is not required, mixture may be driven into one crank case and supply two cylinders with a super-charge. Duplex pistons may be used if high pressure is desired in the air supply. As applied to a two-stroke engine, cylinders and pistons of two diameters and controlled exhaust valves C are used. The annular pump chambers of two cylinders are cross-connected by pipes D with non-return valves E. Each crank chamber supplies its own combustion chamber, the air from the crank case passing through a carburettor B and a regulating piston valve A and the annular pumps supplying scavenging air; or the crank case may supply the scavenging air and the annular pumps mixture.
Patent GB-935437-A (GB)
Title: Improvements in abrading tools
Inventor: BAILEY HERBERT
IPC: B27G17/04
Filed: 1961-07-08
Abstract: 935,437. Rotary tools. DART SPRING CO. Ltd. July 4, 1962 [July 8, 1961], No. 24780/61. Class 145. An abrading tool for dressing butchers' blocks comprises a head 15 provided with a plurality of resilient metal blades 18 disposed about the axis of the head, the latter having a hub 24 for engagement by a driving shaft. The abrading teeth consist of U-shaped strips of spring steel which are nested together and pass through two concentric rows of holes 16 in the head. The strips, which may be of equal or unequal length and have their ends in the same plane or, as shown in Fig. 5, in different planes, are retained in position by a cover plate 19. A second plate 21 is secured to the head and has apertures through which extend the shoulder portions of screws 23 mounted in the hub 24. A spring 25 normally urges the plate 21 into engagement with the heads of the screws but permits the plate and head to tilt relative to the hub. The tool may be mounted in a pistoltype portable electric appliance. Specification 935,436 is referred to.