baber/WOPTO huggingface dataset:
Patent GB-307869-A (GB)
IPC: B28C5/20
Filed: 1928-06-07
Abstract: 307,869. Koehring Co., (Assignees of Webb, G. E.). March 15, 1928, [Convention date]. Rotary mixers.-In a mixing-machine having a horizontal rotating drum, the discharge shoot is carried bv a member which normally closes the drum but can be moved into engagement with the end of the drum so as to be rotated thereby to turn the shoot through 180‹ into and out of operative position; the engagement may be controlled by hand, or from a tuning device, the shoot being stopped automatically when it reaches its new position. The, shoot, 16, Fig. 4, is carried by a closure member 12, the periphery of which is ridged to engage with grooved supporting rollers 13 carried .by a surrounding ring 14 carried by a pair of arms 6, Fig. 1, pivoted on trunnions 4a adjustable, on the main frame 3. The arms are provided with spring extensions 9 engaged by cams 10 on a rocking shaft 11 having at its middle a cam 26 engaging an adjustable projection 27 at the top of the ring member 14. The shaft is under the influence of a spring 23, and has an arm 37 connected by a link 36 to the nose 32 of a latch 29, the other end of which is furnished with a roller 31. As shown in Fig. 1, the nose engages a stop 34 on the closure member. On the operation of the shaft 11, the nose is lifted from the stop, and the cams 10 engage the spring ends 9 of the arms 6 to move the ring member axially of the drum, bringing the closure member into engagement with the drum end, friction surfaces 17 being provided on the engaging surfaces. The closure member 12, carrying the shoot 16, is thus rotated till a cam surface 35 engages the end 31 of the latch 29 to bring the nose 32, provided with a spring cushion 33, into engagement with the stop 34, thus stopping further rotation of the closure member, and simultaneously rocking the shaft back to its initial position and allowing the spring arms 9 to return ; bv these means the closure member is moved away from the drum end, the top of the ring member 14 being moved by engagement of the cam 26 with the member 27. The shaft is provided with an arm 24, Fig. 7, normally engaged in a notch 25 in a lever 19, operation of which, either by hand or from a timing device 22, Fig. 1, releases the arm 24, and permits the shaft 11 to rock under the influence of the spring 23; the rocking motion is limited by a stop 43, Fig. 1, engaging the frame 3. The hand lever 20 has a notched sector arm 39 passing through a fixed plate 40 having a rocking lever 41.
Patent GB-502550-A (GB)
Title: Improvements in or relating to processes of making cadmium red
IPC: C09C1/12
Filed: 1937-06-15
Abstract: 502,550. Pigments. UNITED COLOR & PIGMENT CO., Inc. June 15, 1937, No. 16617. Void. Convention date, July 9, 1936. [Class 95] Cadmium red pigments are prepared by calcining cadmium thioselenide in the presence of cadmium oxide or of a cadmium compound, e.g. the hydroxide or carbonate, which yields cadmium oxide by the heat of calcination. Cadmium sulphide, and an extender such as barium sulphate, may be present in the mixture which is calcined. The ingredients are preferably so proportioned that the number of molecules of cadmium, oxide present is equal to one half of the number of atoms of selenium.
Patent GB-1459694-A (GB)
Title: Blade connectors
IPC: H01R13/115
Filed: 1974-04-16
Abstract: 1459694 Connector UTILUX PTY Ltd 16 April 1974 [16 April 1973] 16662/74 Heading H2E A female connector 10 to accept a blade contact comprises a folded-over wall 44-45-48- 50 and unfolded wall 40, both springing from base 38, the web 50 separating chambers 52 and 54 connected by a small gap 56. The entering male contact, guided by converging lips 60 on all four faces of chamber 54, rides over pressedinward ribs 58 in base 38 to be gripped by pressure from roof 50 of chamber 54. On the outside of base 38 and walls 40, 44 two stiffening ribs 51 are pressed outward. Base 38 continues via bridging section 16 away from mouth 60, in a channel-form crimping tab 12 with pressed through resilient tangs 36 in the base 18 to penetrate cable insulation when flanks 20, 22 with inwardly pressed domes 32 are crimped over the cable. Alternatively the tab 12 may be a flag connector (not shown) turned at right angles to base 38. Ribs 51 may be replaced by outwardly pressed grooves or dimples (as seen from inside) and ribs 58 by an inwardly pressed dimple (as seen from outside).
Patent GB-1298202-A (GB)
Title: Pump circuits for producing a voltage dependent on frequency
Inventor: HISCOX LEONARD RAMSAY
IPC: B60L3/10
Filed: 1969-03-31
Abstract: 1298202 Anti-skid braking systems GIRLING Ltd 16 March 1970 [31 March 1969] 16673/69 Heading F2F [Also in Division H3] A frequency to voltage converter; e.g. such as used in a vehicle anti-skid system having an input pulse rate proportional to the wheel speed, comprises a switching transistor Q1 connected to the input terminal for applying positive and negative inputs to capacitor C1 coupled to a further capacitor C2 via transistors Q2, Q3 wherein a negative input to C1 causes it to charge via the base-collector junction of transistor Q2 which conducts to charge C2 and a positive input C1 causes it to turn on transistor Q3 so that a further charging pulse is applied to C2. The resulting voltage across C2 is differentiated at C3, R8 to provide a voltage proportional to the rate of change of frequency which is applied to a Schmitt trigger Q7, Q8. If the rate of deceleration exceeds a predetermined value, schmitt trigger Q7, Q8 switches to actuate a solenoid 16 releasing the brakes. A similar frequency to voltage converter 15 may be connected to a further wheel.
Patent GB-424114-A (GB)
Title: Improvements in and relating to signs
IPC: G09F13/18
Filed: 1934-06-05
Abstract: 424,114. Illuminated signs; moving signs. AGULNIK, W., 10, Selchowstrasse, Dahlem, Berlin.-(Assignee of Hengel, K. G. ; 30, Planufer, Berlin) June 5, 1934, No. 16689. Convention date, June 6, 1933. [Classes 3 (i) and 3 (ii)] A sign comprises separate cut-out characters of thin celluloid, cellulose acetate, synthetic resins or the like which upstand from a casing and are illuminated at the rear by light projected obliquely upwards from a source concealed within the casing. In one arrangement, Fig. 1, the characters are supported in a channel 4 on a casing 1 and illuminated by a lamp 2 having a reflector behind it. The wall 8 of the casing may be turned down about a hinge 9 to permit the lamp to be used for extraneous lighting and the wall 3 may be apertured to receive a transparent advertising panel. In another arrangement, the letters are mounted on an endless band driven by an electric motor. The characters have their edges 15, 16, 17, Fig. 4, bent rearwardly to varying degrees to avoid shadows and are provided with supporting flanges 18. The Specification as open to inspection under Sect. 91 comprises also an arrangement in which the lamp 2 is enclosed in a cylindrical reflector provided with a slot at the top and another arrangement in which the casing 1 is curved longitudinally to present a convex front wall. This subject-matter does not appear in the Specification as accepted.
Patent GB-1101284-A (GB)
Title: Filter for fluids
IPC: B01D35/06
Filed: 1965-04-21
Abstract: 1,101,284. Filters for liquids; electrostatic separators. E. A. GRISWOLD. 21 April, 1965, No. 16757/65. Headings BID and B2J. Liquid containing solids is introduced centrally, preferably at 14, Fig. 1, and is acted upon by electric discharge from a helical electrode 27a maintained at a potential of several kilovolts with respect to a surrounding perforate metallic cylinder 21. Within the latter is a further cylinder 20 of sintered metal or ceramic material through which the liquid filters outwards. Next, the liquid passes radially outwards through the thickness of annular slabs 43 of polyurethane foam, there being interposed between each two slabs an electrode consisting of a flat metal annular plate 40 or 41 with a vertical edge flange 40a or 41a, respectively. Flanges 40a are at the inner periphery and are directed downwards, and each rests on the inner periphery of the plate 40 below it. The flanges 40a also are in contact with the perforate metallic cylinder 21 above-mentioned and are thus at its electrical potential. Plates 41 alternate with plates 40, and their flanges 41a are at the outer periphery and are also directed downwards. Each flange 41a rests on the outer periphery of the plate 41 below it. The flanges 41a are in contact with a cylinder 45 of fine mesh screen which is electrically connected to the metallic filter casing and is thus at the electrical potential of helical electrode 27a, also connected to the casing. The plates thus provide an electrostatic filter. A filter sheet 46 of porous material surrounds the cylinder 45, followed by a wire mesh screen 47 and a perforate supporting cylinder 50. A high-voltage electrostatic source 32 is provided.
Patent GB-561567-A (GB)
Title: Improvements in or relating to crank shaft
IPC: F16C3/12
Filed: 1942-11-26
Abstract: 561,567. Crankshafts. STEVENS, A. H. (Century Motors Corporation). Nov. 26, 1942, No. 16790. [Class 80 (ii)] In a built-up crank-shaft the interengaging faces of the crank-throws 14, 16 and crank-pin 18 and/or journals 10, 12, are serrated, the serrations 24 being parallel to one another preferably by being struck from an arc having its centre remote from the crank-shaft axis. Thus unsplit big ends 20, and bearing members, may be employed and the parts may be disassembled without disconnecting other parts of the crankshaft. The parts are held together by bolts 26, 50, and 76. Bolt 26 has a cylindrical part 28 fitted into bores in the journal 10 and throw 14. Bolt 50 has a clearance fit at 54 with the throw 16, and the parts 12, 16, are positioned by a flexible annular ring 64. The crank-pin 18 is positioned by a flexible portion 82 extending from the end nuts 78. The above construction requires slight axial separation of the parts to permit removal of the crank-pin. In a modification the tips of the serrations on the crank throws are flattened so that such axial separation is not necessary. In another construction the serrations of the throws are formed on a surface slightly offset from the general plane of the throw, and in another construction the axial length of the big end of the connecting rod is less than the distance between the crank throws. U.S.A. Specification 2,013,039 is referred to.
Patent GB-515626-A (GB)
Title: Improvements in voltage regulators for alternating current
IPC: H01F29/12
Filed: 1938-06-07
Abstract: 515,626. Transformers. SWITCHGEAR & COWANS, Ltd., NEEP, G. H., and FIRTH, D. June 7, 1938, No. 16837. [Class 38 (ii)] In a regulating transformer comprising a pair of opposed primaries b, c and a series-connected secondary movable with respect thereto, the secondary is in two parts a, j adapted for simultaneous movement in opposite directions from one primary to the other, the parts being of such diameters that they nest around each other -at a mid position clear of the two primaries.
Patent GB-333333-A (GB)
Title: Screening apparatus
IPC: B07B1/48
Filed: 1929-05-31
Abstract: 333,333. Tyler Co., W. S. Oct. 4, 1928, [Convention date]. Sieves with compound motion.-In screening- apparatus of the kind in which the screen cloth 10, Figs. 1 and 3, is secured at its opposite ends by means which may be also used for tensioning it, the other edges being free, and in which a vibrator 25, such as rotary unbalanced weight, an electromagnetic device or mechanical hammers act directly on the screen cloth, the securing devices at one or both ends of the screen are mounted on the stationary frame 1, 2 in such a manner that the screen is capable of movement as a whole in addition to the vibratory movement. In the construction shown in Figs. 1 and 3, the ends 13 of the screen cloth are hooked and engaged over bars 15, 16 which are connected by studs 17 to lugs 21 on the side of the frame and are adapted to be adjusted longitudinally for securing and tensioning the screen. In a modification the studs are replaced by spring strips one or both of which are carried by sliding blocks adjustably connected to the frame. Fig. 7 shows a further modification in which one end of the screen cloth 52 is secured to a rigidly supported bar 55 and the other end to a bar 53 supported by studs 54. The bar 55 is adjustable by one or more threaded studs 58 working in nuts carried by the frame end bar. In this modification a feed plate 60 is used to blank out the extreme upper end of the screen. Any required number of vibrators may be used in the length of the screen.
Patent GB-1511693-A (GB)
Title: Apparatus for removing solid material from sewage or other liquid
IPC: B21D22/02
Filed: 1975-04-24
Abstract: 1511693 Filter apparatus JONES & ATTWOOD Ltd 5 April 1976 [24 April 1975] 16979/75 Heading B1D Apparatus for removing solids from liquids (e.g. sewage) flowing in a duct 11  comprises a first screen 10, a vertically extending second screen 13 for receiving solids retained by screen 10 and a vertically reciprocating lifting plate 14 for removing solids from screen 13. As shown the screen 10 is rotatable, screen 13 consists of spaced bars 13a and duct 11 is divided into channels 11a, 11b, channel 11b supplying liquid directly to screen 13. In use screen 10 is rotated alternately in opposite directions. During anticlockwise rotation of screen 10 the solids are removed therefrom by scraper edge 23a and supplied to screen 13. The screen 10 is stopped and plate 14 is lifted by piston/cylinder unit 15 to lift solids from screen 13 into compression chamber 16. The screen 10 is rotated clockwise, the forks 21 are inserted by piston/cylinder unit 20 into channels in the plate 14 to hold the solids thereon, the plate 14 is lowered and the press head 17 is moved by piston/cylinder unit 18 to remove the solids 24 from forks 21, compress them and remove liquid therefrom. When the plate 14 reaches its lowermost position the press head 17 and forks 21 are withdrawn and the screen 10 is rotated anticlockwise. The steps in the process are controlled by a cam-operated timing device. The chamber 16 comprises spring-loaded pivotable plate 19. The plate 19 the side walls of chamber 16 adjacent plate 19 and the press head 17 may be provided with drainage apertures.
Patent GB-773723-A (GB)
Title: Improvements in the preparation of ferrous surfaces to receive a vitreous enamel
IPC: C23D3/00
Filed: 1955-06-13
Abstract: A ferrous surface is prepared to receive one or more coats of vitreous enamel by forming a coating of one or more As compounds, Sb compounds and Bi compounds on the surface, and then heating the coated surface in an oxydizing atmosphere to form an iron oxide coating containing As, Sb or Bi or a mixture of two or more of these. The coatings can be formed on enamelling iron and on low-carbon and alloy steels.  Preferably, an acidic (acidified by a strong inorganic acid e.g. HCl, H2SO4HNO3) aqueous solution of As, Sb and Bi compounds is used: suitable compounds are As2O5, As2O3, Na3AsO3, NaH2 AsOz, Na2HAsO4, Sb2O3, Sb2O4, Sb2O5 and (BiO)2 CO3.  The compounds are preferably in their highest valency states and it is thus preferred to add to the solution an oxidizing agent such as sodium chlorate, hydrogen peroxide. sodium nitrate, sodium nitrate, sodium nitrobenzene sulphonate, sodium bromate, sodium dichromate, potassium permanganate or potassium persulphate.  The iron oxide may be formed by rinsing the coating in cold water and immediately introducing the wet oxide into a furnace with an oxidizing atmosphere at a temperature above 1100 DEG F.
Patent GB-219318-A (GB)
IPC: B26B21/18
Filed: 1924-07-16
Abstract: 219,318. K³nzel, K. July 18, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Razors, safety. In a safety razor a rectangular non-perforated blade is used and is guided in the holder by its blunt edge. As shown the holder comprises an arched cover plate b secured to a strap piece e fixed to the handle d, the blade a being guided between the side arms of the strap e and being pressed against the plate b by a compression plate c fixed to a screwed rod g disposed in the handle and longitudinally movable by a nut k, i; the plate c is formed with guard teeth. Two blades may be used; the compression plate may carry two screwed rods; the cover plate' may have hooked projections engaging the compression plate, in which projection set-screws are fixed; if a number of set screws are employed they may be connected by teeth or with a revoluble part of the handle or instead of screws, wedges, eccentrics or other cam or curved faces may be employed; a bayonet joint may be employed and also one or more compression springs which may be adjustable.
Patent GB-1151669-A (GB)
Title: Improvements relating to the Treatment of Freeze-Dried Bacterial Cultures
Inventor: BUHRDEL WERNER
IPC: C12N1/04
Filed: 1968-04-09
Abstract: 1,151,669. Freeze-dried bacterial cultures. W. BUHRDEL. April 9, 1968 [April 11, 1967], No. 17115/68. Heading C6F. [Also in Division A2] Freeze-dried bacteria, particularly lactic acid bacteria and bifidus bacteria, are worked into substantially anhydrous normally liquid or low melting normally solid glycerides of fatty acids at a temperature at which the glycerides are liquid. Mono-, di- and triglycerides of natural fatty acids having 6 to 22 carbon atoms in the molecule and an iodine number below 3 are employed. (Mineral oils and silicones are stated to be unsuitable). The stabilized bacterial preparations obtained can be packed in gelatine capsules. According to an example, lyophilized lactic acid bacteria were stirred into a neutral fat mixture consisting of triglycerides of C 12 -C 18  fatty acids maintained at a temperature not exceeding 45 ‹C. until the concentration of the bacteria reached a level between 40% and 80% by weight. The stirred mass was poured into moulds providing for dosage units, from which it was removed after cooling. Alternatively the solidified material could be comminuted e.g. into particles 1-2mm in diameter. In the procedure of a further example, lyophilized bacteria were worked into a neutral oil mixture consisting of triglycerides of straight-chain saturated C 6 -C 12  fatty acids. The product had a paste-like consistency.
Patent GB-1244889-A (GB)
Title: Method and apparatus for preparing a non-woven fibrous web
IPC: D04H3/02
Filed: 1969-04-01
Abstract: 1,244,889. Non-woven fabric. SOC. RHODIACETA. 1 April, 1969 [2 April, 1968], No. 17122/69. Headings D1F, D1N and D1R. A non-woven fibrous web is prepared by feeding a tow 1, and/or discontinuous fibres of, e.g. polyamide, polyolefine, polyester, acrylic or vinylic compounds by means of rollers 6 and 7 which rotate at different peripheral velocities after spreading of the tow is effected by curved bars 3 and tensioning bar 4, to a continuously advancing conveyor belt 8 substantially without tension. A doctor 9 spaced from belt 8 is periodically displaced in the same direction and at a higher velocity than belt 8 so as to exert pressure on the entire width of the tow and to subject the tow to local friction thereby forming a web. The velocity of doctor 9 and its spacing from belt 8 is adjustable. The web then passes onto a conveyor belt 11, through chamber 12 where it is sprayed with a crosslinkable resin bonding agent, e.g. an acrylic resin and heating chamber 13 where the bonding agent is cured. The web may subsequently be subjected to calendering and/or needling. In another embodiment Fig. 3 (not shown) a plurality of doctors 31 are mounted to extend radially on a spindle 32 which rotates at constant speed.
Patent GB-262011-A (GB)
Title: A machine for cutting paper lengthwise and rewinding it
IPC: B26D7/26
Filed: 1926-07-08
Abstract: 262,011. Laroche, G. July 8, 1926. Feeding webs.-In a slitting and rewinding machine the web from a roll A is fed round guide rolls between cutting-discs 9 and a grooved cylinder 3, and is wound on to drums 7 which are drawn by contact with the cylinder 3. The latter is supported on a shaft 2 comprising hard metal bushes spaced by distance pieces. Coacting with the edge of the bushes are spring- urged disc cutters 9 mounted in adjustable holders 8. Specification 257,872 is referred to.
Patent GB-914209-A (GB)
Title: Apparatus for analysis of blood gas
IPC: G01N33/49
Filed: 1960-05-16
Abstract: <PICT:0914209/III/1> <PICT:0914209/III/2> A reaction chamber suitable for estimating gases contained in blood or a blood component by mixing the blood or blood component with a gas-releasing reagent, entraining the released gases in an inert gas stream and analysing the resulting gas stream by gas chromatography comprises a container divided into two compartments by a horizontal porous partition (27), having an inert gas inlet (35) in the lower compartment and a gas outlet (not visible) in the upper compartment and a passageway (38) which can be closed adapted to permit insertion of the sample and reagent into the upper compartment.  As shown in Fig. 3 (to which the above numerals relate) the reaction chamber comprises a cylindrical base 21 having a recess 24 into which the inert gas is passed through line 35 and a recess 29 in which a porous polyfluoroethylene partition 27 is seated.  The upper compartment is formed from an annulus 22 resting upon a sealing ring 34 in the recess 29 and a glass cap 23 similarly seated in the annulus.  An annular plate 30 keeps the cap in place with the aid of screws, e.g. 31 and the annulus is screwed similarly to the base.  The cap 23 is provided with an outlet (not shown) and has a serum cap-a rubber membrane 38-tied over an upper stem portion so that a sample of blood and the reagent may be introduced by means of hypodermic syringes.  39 is a bar magnet actuated by means of a rotating bar magnet 40 for stirring purposes.  The upper compartment also has a valved outlet (not shown) through which reagents may be removed from the apparatus.  As shown in Fig. 1 inert gas enters a thermal conductivity gas analyser 7 having thermistors 8, 8a, 9, 9a and passes through a sample inlet 10 and a four way valve 11 to the reaction chamber 12, described above. The sample inlet 10 and the valve 11 are for calibrating the apparatus by introducing a gas and passing it directly to the column 14, Inert gas and entrained gases then pass to a drying tube 13 and via valve 11 to a chromatography column 14.  Where oxygen, nitrogen and carbon dioxide are to be estimated this column may be packed with silica gel which selectively retards the carbon dioxide: thermistor 9a thus provides signals corresponding to oxygen plus nitrogen and to carbon dioxide. Thereafter the gas is passed to column 15 packed with a molecular sieve and thermistor 8a provides separate signals for oxygen and nitrogen.  Where only carbon dioxide is to be measured, column 15 may be omitted and the initial stream of inert gas led past thermistor 9a.  For the analysis of carbon dioxide, nitrogen and oxygen in whole blood, a standard Van Slyke solution containing lactic acid, saponin, N-octyl alcohol and potassium ferrocyanide may be used; for analysis of carbon dioxide only in blood serum, dilute acid is suitable.  The apparatus may be calibrated for carbon dioxide using bicarbonate in place of the blood or serum to be tested.