baber/WOPTO huggingface dataset:
Patent GB-491406-A (GB)
Title: Improvement in processes of preparing liver concentrates
IPC: A61K31/00
Filed: 1937-10-07
Abstract: Anti-anaemic liver concentrate is obtained by extracting ground liver with hot water, concentrating the extract and extracting the concentrate with cold methyl alcohol.  Ground hog or other liver is extracted at 70 to 80 DEG  C. with water adjusted, by addition of hydrochloric or other acid, to a pH of about 4,5, the extract is filtered and concentrated under vacuum to a moisture content of about 25 per cent, and the paste so obtained is extracted with twice its weight of methyl alcohol at a temperature preferably of -5 to -10 DEG C. but in any case not exceeding 5 DEG  C.  The extract so obtained is filtered, concentrated to a paste in vacuo and dried, and is then dissolved in a solvent, such as alcohol, for oral administration, or is dissolved in alcohol, mixed with bone meal, again dried and put up in capsules or made into pills.  A known process is referred to according to which a concentrated aqueous liver extract is treated with 70 to 80 per cent ethyl alcohol to precipitate ballast substances, the clear liquid concentrated and poured into ethyl alcohol, so as to give a final content of 95 to 98 per cent of alcohol, from which a precipitate of the active substance settles as a powder which is put in capsules or dissolved for use.
Patent GB-773404-A (GB)
Title: Improvements in or relating to the extrusion of plastic materials, e.g. ice cream
Inventor: DOWNIE CHARLES
IPC: A23G9/32
Filed: 1953-10-05
Abstract: 773,404. Extruding ice-cream. ELDORADO ICE CREAM CO., Ltd. Oct. 4, 1954 [Oct. 5, 1953], No. 27322/53. Class 87(2). Multi-layered ribbons of plastic material, e.g. differently coloured or flavoured ice-cream is extruded through ducts 20, 21, 22, leading to a nozzle 23. The flow of material in each duct is controlled by an impeller 16 of the type described in Specification 771,758 [Group IV(a)]. In a modification, Fig. 3, the ducts are arranged horizontally. The nozzle may be removable by providing bolts 26 or wing nuts 39. Several nozzles may be arranged side by side.
Patent GB-274617-A (GB)
Abstract: 274,617. Mann, R. June 14, 1926. Convertible close and open fireplaces; boilers, arrangement of.-A device, by means of which an ordinary domestic range can be used as an open fire or entirely closed for slow combustion, comprises a pair of channel-shaped jambs a bolted vertically to the front i of the range, the lower portions of the jambs being outwardly inclined to cover the moulding of the range and fitted with a sliding draught door c, the middle portions of the jambs carrying firebars b which may be covered by a hinged door j, and the upper portions of the jambs being provided with means for supporting a removable door o between the top of the hinged door and the bottom of a plate g bolted to the front of the range above the jambs and serving as a hood for an open fire. The doors j, o are made hollow and provided with catches l, q for engaging checks m, r cut in the front webs of the jambs a. The door j is filled with a non-conducting mixture, and is provided with a handle n which forms a support when the door is used as a hob for an open fire. The heating gases pass below the ovens, round the sides, and then over the tops, a firebrick f being arranged on either side of the bottom bars e to prevent fuel passing below the ovens. A semi-circular boiler h is slightly inclined to the vertical as arranged at the rear of the grate.
Patent GB-723498-A (GB)
Title: Improvements in or relating to methods of testing the uniformity of the electrical resistivity over a conducting surface
IPC: G01R27/02
Filed: 1952-10-31
Abstract: 723,498. Resistance measurement. GENERAL ELECTRIC CO., Ltd., and WILLIAMS, C. E. Oct. 29, 1953 [Oct. 31, 1952], No. 27474/52. Class 37. An assembly comprising outer and inner electrodes is used in testing a conductive surface for uniformity of resistivity. In Fig. 1 a conductive surface 1 is explored as coaxial electrodes 2, 5 are moved into contact with different test areas 6 and the current meter 4 indicates the degree of uniformity. The conductive surface 1 may be a conductive coating on a glass support. The electrodes 2, 5 are copper foils secured by adhesive to a rubber disc 11, Fig. 2, on the end face 9 of cylindrical holder 7. The electrodes may be curved for contact with curved conductive surfaces.
Patent GB-1417281-A (GB)
Title: Onboard frieght loading and unloading apparatus
IPC: B64C1/22
Filed: 1973-06-08
Abstract: 1417281 Loading and unloading aircraft; collapsible conveyers VEREINIGTE FLUGTECHNISCHE WERKE-FOKKER GmbH 8 June 1973 [10 June 1972] 27480/73 Headings B8E and B8A An endless belt conveyer for the loading or unloading of a vehicle such as an aircraft 1 can be moved from a stowed folded position, Fig. 3, to an extended operative position, Fig. 2, by movement of a carriage 5 on rails 6 across the aircraft and actuation of a motor 7 to pivot the conveyer out and to extend its two sections 10<SP>1</SP>, 1011 under the control of levers 9 acting through push rods 11, 11<SP>1</SP>, 11<SP>11</SP>. The belt 15 of the first section has a drive roller 16 driven by a motor 14 which by drive chains 23 passing over gear wheels on the folding axis 24 also drives a roller 20 of the belt 19 of the second section. In operative position the conveyer 10 is supported by rollers 26 but it is also possible to dismantle the lower section 1011 by loosening bolts on the fold axis 24 and bolts 27 on the section 1011.
Patent GB-1536435-A (GB)
Title: Flow divider
IPC: F15B13/02
Filed: 1976-07-02
Abstract: 1536435 Valves INSTITUTUL DE CERCETARI SI PROIECTARI PENTRU UTILAJE DE CONSTRUCTII DE DRUMURI (ICPUC) BRAILA 2 July 1976 27577/76 Heading F2V A flow divider comprises two slide valves 2 mounted in a body 1, each slide valve having a hollow interior f communicating through a central port with a first opening d or j in the body and communicating through ports a with openings i and g in the body, a cap 5 on each end of each valve 2 co-operating with shoulders b on the body to limit movement of the valve and having an opening c communicating with a chamber defined between the cap 5 and a plug 4, and a spring 3 in each chamber acting between plug 4 and cap 5 to centre the valve 2 and to equalize the flow through the respective ports a at opposite ends of the valve, so that when a pressure differential arises between the chambers at opposite ends of the valve it is moved so that throttling of the flow through the ports a farthest from the higher pressure chamber is increased, and a greater flow is permitted through the ports a nearest the higher pressure chamber. In use the openings i are connected each to one side of respective fluid motors (22), (23), Fig. 3 (not shown), and the openings g each to the other side of each motor. If pressure fluid is fed to opening j and opening d is connected to tank, then in the event of increased load on one of the motors the upper slide valve (as shown in Fig. 1) will move to increase fluid supply to that motor; if a selector valve (10) is operated to reverse the connections to openings d, j, then the directions of the motors will be reversed and the lower valve (as in Fig. 1) will move to equalize flow to the motors.
Patent GB-463869-A (GB)
Title: Improvements in or relating to apparatus for inking and wiping operations in printing machines
IPC: B41N10/00
Filed: 1935-10-05
Abstract: A composition for coating a fabric which is to form a covering for rollers, plates or endless bands for use in the inking apparatus of printing machines, consists of 70 parts of gelatine, 50 parts of whiting, 12 parts of beeswax, 70 parts of glycerine and a quantity of water.  Specification 334,183, [Class 100 (ii)], is referred to.
Patent GB-705999-A (GB)
Title: Improvements in and relating to compressors for refrigerators
IPC: F25B31/00
Filed: 1952-11-03
Abstract: 705,999. Compressors. GENERAL ELECTRIC CO. Nov. 3, 1952 [Nov. 2, 1951], No. 27623/52. Class 8 (1). [Also in Groups XIII and XXXIV] A plurality of compressors 2, 3, are connected to a common refrigerator evaporator and condenser by a suction line 8 and pressure lines 10, 13, the suction line being connected to the compressor 2 which has its suction space connected to that of the compressor 3 by a transfer tube 15 opening at the normal level of the oil sump 9 in the compressor 2 and above the normal oil level in the compressor 3 so that excess oil in the compressor 2 is sucked into the compressor 3. The tube 15 is cut obliquely at 16 to provide a large opening and is of inverted V shape. The arrangement maintains satisfactory oil levels in the compressors even when they are disposed at different heights.
Patent GB-1172349-A (GB)
Title: Needle Jogging Mechanisms
IPC: D05B19/00
Filed: 1968-06-11
Abstract: 1,172,349. Sewing. SINGER CO. 11 June, 1968 [16 June, 1967], No. 27637/68. Heading D1G. In a zigzag sewing machine the amplitude of a pattern produced by the pattern cam 191 can be varied without distortion by the introduction of a wedge 158 between the pattern cam and the amplitude varying linkwork 177, 182. The needle bar gate of the machine is oscillated about a vertical pivot by a rod 140 which is reciprocated from a forked lever engaging a cam on the main cam shaft through a slide 128. The position of the end of rod 140 in the slide 128 determines the amplitude of swing and this position is controlled by a rod 177 pivoted at 178 with a cam follower 176 mounted thereon. The replaceable cam 191 causes rotation of the rod 177 against the action of spring 187 for patterning and a further movement can be produced by the movable wedge 158 which is rotated by the control 157 so that the position of rod 177 and hence the amplitude of oscillation can be varied for any given position of the cam 191. A rod 75 connected to the needle bar gate reciprocates the bed shaft through appropriate linkage to move the shuttle in sequence with the needle. In a modification the oscillating drive is taken from a separate shaft from the pattern cam shaft.
Patent GB-634990-A (GB)
Title: Improvements in or relating to processes for the impregnation or protection of electrical equipment or components thereof
IPC: B05D5/12
Filed: 1946-09-16
Abstract: Electrical components are coated by means of a dispersion of a thermoplastic synthetic resin in a liquid plasticizer, by preheating the component to a temperature at which rapid absorption of the plasticizer by the resin would occur, dipping the hot component into the resin dispersion, allowing a short interval for a coating to form, withdrawing the component and maintaining it at a temperature at which the plasticizer is absorbed by the resin until the coating becomes a homogeneous plasticized mass.  The resin dispersion may contain one or more dyestuffs, pigments, resins soluble in the plasticizer, stabilizers such as basic lead sulphate, and non-aqueous liquids which are not active solvents for the resin.  Specified resins are polyvinyl chloride and a vinyl chloride-acetate copolymer. The component is preferably preheated to at least 60 DEG  C. and after withdrawal is preferably maintained at 150 DEG  to 175 DEG  C. The component may be given a preliminary treatment prior to the hot dipping.  In this treatment the component is saturated with the resin-plasticizer dispersion, then heated to a temperature at which the plasticizer is absorbed by the resin (e.g. 150 DEG  to 175 DEG C.) and maintained at this temperature until the dispersion is either partially or wholly cured.  In examples (1) a coil of enamelled copper wire is immersed in a polyvinyl chloride, dibutyl phthalate dispersion, removed, drained, heated rapidly to 155 DEG  C. and maintained at this temperature for 3 minutes.  It is then immersed in the same dispersion for ten seconds, withdrawn and heated to 155 DEG C. for 3 minutes.  (2) A similar coil is heated to 150 DEG  C. and dipped into a polyvinyl chloride, dibutylphthalate, basic lead sulphate, titanium oxide and "Paraplex" (R.T.M.) dispersion, removed and heated to 155 DEG  C.  (3) A similar coil is immersed in the dispersion of (1) and subjected to a vacuum.  The coil is removed and heated to 100 DEG  C. in an infra-red heating tunnel after which it is dipped into the composition of example (2) for two minutes, withdrawn and heated in the tunnel to 155 DEG  C. for two minutes. Specification 570,108 is referred to.ALSO:Dispersions of thermoplastic synthetic resins in a liquid plasticizer are used for dip-coating electrical components (see Group III).  Specified dispersions are: (1) polyvinyl chloride in dibutyl phthalate and (2) a composition containing polyvinyl chloride, dibutyl phthalate, basic lead sulphate, titanium oxide and " Paraplex " (Registered Trade Mark).  A copolymer of vinyl chloride and vinyl acetate is also specified.  The dispersion may also contain dyestuffs, pigments and stabilizers.  Specification 570,108, [Group III], is referred to.
Patent GB-304362-A (GB)
Title: Improvements in holders for safety razor blades
IPC: B24D15/10
Filed: 1927-10-19
Abstract: 304,362. Kirkhouse, B. H. Oct. 19, 1927. Razors, safety. - A holder for use in stropping safety razor blades comprises clamping-members 1, 3, one of which has a projection 5 to engage the central hole of a blade and the other a projection 6 to engage either of the end holes or a recess in the blade. The clamping- members 1, 3 may consist of a single piece of metal bent about one end or side or they may be hinged or otherwise secured together. One of the members 1, 3 is secured to a handle 2 and means are provided to separate or to clamp the parts. As shown, the member 3 has a spring-pressed pin 7 passing through clearance holes in the member 1 and handle 2. If the pin 7 is pressed, the blade may be rotated about the projection 5. In a modification, the handle 2 has a pivoted member with oppositely directed wedge-shaped faces one of which is adapted to clamp the members 1, 3 together and the other to separate them. In another modification, the members 1, 3 are clamped together by a wire loop capable of snapping into a groove in a pin fixed to the handle.
Patent GB-1076062-A (GB)
Title: Control device for hydrostatic pumps or motors
IPC: F04B49/08
Filed: 1965-07-01
Abstract: 1,076,062. Fluid-pressure servomotor systems. TECHNOMETRA, NARODNI PODNIK. July 1, 1965 [July 15, 1964], No. 27873/65. Heading G3P. A control system for a variable delivery pump, e. g. a swashplate pump, is responsive to both the discharge flow rate of the pump and to the  discharge pressure, and controls the pump in such a way as to maintain the product of these two variables constant. As shown, a servo-piston 4 is biased to a position corresponding to minimum displacement of the pump by a spring 6 and discharge pressure is admitted to the cylinder 1 via port 8. When the pump is started, discharge fluid passes through an orifice 20, having a shape 21, to a port 37, some of the fluid passing via a port 15 in a valve member 11 and a port 18 in the valve housing 10 to the servo-cylinder to cause the piston to increase pump displacement. The discharge increases until the valve member 11 is moved, by the pressure drop across orifice 20, to obturate port 18. A differential piston 22 slidable in housing 10 is responsive to discharge pressure, and at pressures above a value (A) Fig. 7 (not shown) the piston moves to restrict orifice 20. Restriction of the orifice increases the pressure drop thereacross and thereby causes the valve member 11 to move to the left to vent the servocylinder to port 16 to decrease the discharge until the pressure drop across the restricted orifice restores the valve member to its central position. In this way, variation in discharge pressure between points (A) and (B) (Fig. 7) causes a variation of the discharge flow rate such as to ensure a relationship pQ = constant. When the piston 22 takes up a position corresponding to maximum allowable discharge pressure it abuts the head 27 of a rod 26 projecting from the valve member; consequently, movement of the piston as a result of a further increase in pressure is directly transmitted to the valve member to cause reduction of the pump displacement. Instead of using the discharge fluid to actuate the servomotor, a separate constant pressure supply controlled by valve member 11 may be used, in which case the connection at 8 would not be required. The orifice may be circular and varied in cross-section by a profiled mandrel movable therein by the piston-22. The piston 22 and valve member 11 may be arranged in parallel relation. The invention is also applicable to hydrostatic motors. Piston 22 has a collar 34 provided with a damping groove 35.
Patent GB-340274-A (GB)
Title: Improvements in or relating to wireless receivers
IPC: H04B7/04
Filed: 1929-09-14
Abstract: 340,274. Wireless signalling. DICKER, S. G. S., 20, Holborn, London.- (Naamlooze Vennootschap Philips' Gloeilampenfabrieken; 6, Emmasingel, Eindhoven, Holland.) Sept. 14, 1929, No. 28002. [Class 40 (v).] The high-frequency amplifiers associated with a plurality of aerials of different fading characteristics are housed in one casing with a single intermediate or low frequency amplifier, or both, which are arranged to receive the combined signals from all the high-frequency amplifiers, preferably by the interposition of transformers, the secondaries of which are in series, between the detectors and the intermediate or low-frequency amplifier. Specifications 306,538 and 307,894, [both in Class 40 (v), Wireless signalling &c.], are referred to.
Patent GB-1462420-A (GB)
Title: Sizing agent for glass fibres
IPC: D06M101/00
Filed: 1974-06-25
Abstract: 1462420 Antistatic glass fibre-resin laminates KAO SOAP CO Ltd 25 June 1974 [27 June 1973] 28123/74 Heading B5N [Also in Divisions C3 and D1] In a 5-layer laminate of a glass cloth reinforced isophthalate-type polyester the glass cloth is one that has been coated with an antistatic aqueous sizing composition comprising a fatty acid amide as lubricant, 8-methacryloxypropyl trimethoxysilane, vinyl triethoxysilane or vinyl tris-(#-methoxyethoxy) silane as coupling agent, triethanolamine lauryl sulphate, triethanol amine lauryl naphthalene sulphonate, a triethanolamine salt of naphthaleneformaldehyde condensate sulphonate or triethanolamine dodecylbenzene sulphonate as antistatic agent, polyethylene glycol monostearate as stabilizer and an aqueous polyester emulsion prepared from either (1) an adduct of propylene oxide and bisphenol A, fumaric acid and polyethylene glycol (M.Wt. 1500); or (2) an adduct of ethylene oxide and bisphenol A, maleic anhydride and an adduct of ethylene oxide and castor oil; or (3) an adduct of propylene oxide and bisphenol A, hydrogenated bisphenol A, fumaric acid, and polyethylene glycol (M.Wt. 4000); or (4) an adduct of propylene oxide and bisphenol A, propylene glycol, maleic anhydride, phthalic anhydride and an adduct of ethylene oxide and hydrogenated castor oil. The laminate is cured at room temperature and subjected to a post-curing treatment at 110-120 C.
Patent GB-296218-A (GB)
Title: Improvements relating to tins or like containers
IPC: B65D43/02
Filed: 1927-10-24
Abstract: 296,218. Kirk, J. R. Oct. 24, 1927. Lids; bottoms. - A tin, box, or like container is provided with one or more rods, cones, tubes, or the like c extending from the dished or domed yielding bottom d to the inside of the cover, so that upon pressure being applied to the bottom, the cover is loosened and can be removed. The cones or the like c are held in place by the material in the tin.
Patent GB-302010-A (GB)
Title: Improvements in or connected with mangles or wringers or stands for the same
IPC: D06F45/00
Filed: 1927-10-24
Abstract: 302,010. Sims, R. S. C., and Sims & Sons, Ltd., S. Oct. 24, 1927. Mangles and wringers.-In order to receive the articles as they.pass from between mangle or wringer rollers h, a box d or other receptacle is attached to or is carried by the rear portion of the frame f of the mangle or wringer or of a mangle or wringer stand. The box may be made of corrugated iron or steel and may be galvanized. A cover e is provided, and a hook may be attached thereto by which it mav be secured in a dolly tub at the front of the machine to serve as a rubbing board.
Patent GB-630054-A (GB)
Title: Improvements in or relating to serving cans for containing ice cream or other commodities in refrigerating appliances
IPC: A23G9/22
Filed: 1947-10-22
Abstract: 630,054. Refrigerators. COLLINS, A. F. Oct. 22, 1947, No. 28194. [Class 29] A serving container 9 for ice-cream or the like is maintained at a selected height in an aperture 5 of a refrigerated cabinet 6 by an embracing resilient ring 12 which becomes wedged in a ring-like part 2 resting in' the aperture 5. The bottom 11 of the container 9 may be removed for cleaning. If the aperture 5 is non-circular, it may be bridged by a plate having a circular aperture for the part 2.
Patent GB-1535073-A (GB)
Title: Adjustable pulley
IPC: F16H55/54
Filed: 1976-07-07
Abstract: 1535073 Variable-diameter pulley VYZKUMNY A VYVOJOVY USTAV ZAVODU VSEOBECNEHO STROJIRENSTVI 7 July 1976 [21 July 1975] 28304/76 Heading F2D A variable-diameter pulley comprises segments 15 around which a belt passes, the segments 15 being moved radially by the engagement of racks 12 with a pinion 1. The segments 15 are between a pair of discs 3, 7 and each segment has a portion 16 engaging a radial slot 8 or 9 in disc 7. The pinion 1 has disc 3 fixed for rotation with it. To adjust the pulley diameter a nut 17 is slackened and disc 7 is rotated relative to disc 3. The slot 9 extends through disc 7 and a scale 10 co-operates with a segment portion 16 to aid adjustment to a desired diameter.
Patent GB-970415-A (GB)
Title: Improvements relating to electronic coupling circuits
Inventor: LAMBERT PETER GABRIEL
IPC: H03F3/30
Filed: 1960-08-16
Abstract: 970,415. Transistor amplifying circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 26, 1961 [Aug. 16, 1960], No. 28312/60. Heading H3T. In a coupling circuit comprising a first transistor T2 with the input applied to its base, and the output taken from its collector, the emitter circuit includes a constant current device and the collector load comprises the emitter collector circuit of a second transistor T3, the base of which is capacity coupled to the emitter of transistor T2. The constant current device comprises a further transistor T1 whose base is connected to a constant potential. When an input signal is applied to T2, its emitter moves in phase with the signal applied to its base and the change in potential is transmitted through capacitor C1 to the base of transistor T3. This transistor functions as an emitter follower so that the potential at its emitter, and at the collector of T2, also follows the input signal. Thus both emitter and collector of T2 follow the base giving a high input impedance. Resistors R4, R5, R6 control the voltage drop across T2 and T3, and a further capacitor C2 is connected between the junction of T2, T3 and the junction between R5, R6 to magnify the value of R5 and thus reduce its shunting effect.