baber/WOPTO huggingface dataset:
Patent GB-1397302-A (GB)
Title: Cooling dynamoelectric machines
IPC: H02K9/06
Filed: 1972-06-20
Abstract: 1397302 Cooling dynamo electric machines GENERAL ELECTRIC CO 20 June 1972 [26 July 1971] 28825/72 Heading H2A In a dynamo electric machine, e.g. an induction motor, comprising a rotor 13 having an axial rotatable shaft 16 and fan blades at opposite ends for drawing air into both ends of the machine, a stator 12 formed of stacked annular magnetic laminations forming a rotor bore and having in stator slots the coil sides a winding 14 having end turns protruding beyond the ends of the stator, a housing 20, e.g. of A1, circumferentially disposed about and directly contacting the entire circumferential edges of the laminations to permit heat transfer therebetween the housing having integral therewith the inner edges of a plurality of spaced fins 21 extending axially along the periphery of the housing for approximately the entire length of the lamination stack and whose outer edges are open. to the atmosphere, and mounted at opposite ends of the machine end shields 18, 18<SP>1</SP> having cooling air intake apertures 27 and a diameter proximate the housing larger than that of the housing to form therebetween air exhaust vents 28, there is provided between each end shield and the fan blades a respective baffle 23; the entire air streams flowing into the machine through the apertures 27 contact the winding end turns and are impelled radially outwards by the fan blades via such turns to the exhaust vents 28 to pass along the housing exterior between its fins 21 and then radially outward from the machine near its axial centre. As shown, the blades 22 have outer portions contoured to overlie the end turns, but in a modification Fig. 2. they do not exceed the rotor maximum diameter and are trapezoidal.
Patent GB-1207079-A (GB)
Title: Water cooling tower
IPC: F28C1/00
Filed: 1969-06-06
Abstract: 1,207,079. Cooling towers. FLUOR PRODUCTS CO. Inc. 6 June, 1969 [13 June, 1968], No. 28885/69. Heading F4K. A cooling tower 10, Fig. 1, comprises a lower portion 12 housing liquid receiving packing sections 13, each having an inlet and outlet side 13a, 13b, Fig. 2, separated from each other in a direction generally along the tower plan periphery so that air entering the spaces 14a flows through the sections 13 with a substantial component 15a parallel to the direction of the tower periphery and is then received in spaces 14b for subsequent passage to the tower interior. Partitions 16 extend diagonally between the outer extents 17 or the outlet sides 13b to the inner extents 18 of the inlet sides 13a to direct this flow direction and further partitions 19, 20 cover the inner- and outer-most extents of the sections. The sections are shown as circularly arranged about the vertical central axis of the tower and elongated towards the tower interior. Water to be cooled flows through the sections from a water basin 60 overlying the sections and spaces 14a, 14b therebetween via groups of apertures 67 only above the sections and the basin extends outwardly over the air entrances to spaces 14a to provide a water curtain via apertures 70. An openable and closable auxiliary air inlet structure 73 extends between the basin and stack 11. In modifications, the sections may be spaced apart linearly, Fig. 5, as in a rectangular tower construction in which air flow direction may be as shown in Fig. 2, of the partitions may extend between pairs of sections at their inner and outer sides respectively, Fig. 6, so that alternate spaces between the sections are outwardly covered and inwardly exposed to the tower interior. In a further modification, Fig. 7, the sections are arranged in a row and are elongated in staggered formation.
Patent GB-345968-A (GB)
Title: Method of raising liquids in stages and apparatus therefor
IPC: F04F5/26
Filed: 1929-09-24
Abstract: 345,968. Raising liquids. BERKENHOFF, A., 109, Achenbachstrasse, Diisseldorf, Germany. Sept. 24, 1929, No. 28910. Convention date, Aug. 22. Void [Published under Sect. 91 of the Acts]. [Class 102 (ii).] Liquid is raised from a level 2 to a delivery nozzle 12 by creating a vacuum in a chamber 5 by means of an ejector 7 supplied with pressure water from a pipe 19. This lifts the liquid in the pipe 1 to a level k-l, and also raises the liquid in the previouslyfilled pipe system 11, 8 from the level a-b to the level f-g.
Patent GB-668891-A (GB)
Title: Improvements relating to fractionating columns and similar countercurrent contacting apparatus
IPC: B01D3/28
Filed: 1949-11-11
Abstract: In fractionating columns and similar countercurrent phase-contacting apparatus comprising a plurality of vertical conduits arranged in parallel, the downflowing liquid is supplied to the upper ends of the conduits through tubes of relatively narrow bore, the inlets of which are surrounded by fine-mesh strainers to prevent them being blocked by bubbles of air or vapour.  Fig. 1 shows a fractionating column containing a closely-packed bundle of vertical conduits 11 (only two are shown) distributed over the whole cross-section of the column. The liquid-mixture- <PICT:0668891/III/1> <PICT:0668891/III/2> to-be-fractionated is introduced through inlet 33 into chamber 31 whence it flows through choke-tubes 32 into conduits 11.  The liquid flows down the walls of conduits 11 while vapour passes up the interior of the conduits.  The vapour streams are formed in the enlarged lower ends 12 of the conduits, which are surrounded by chamber 15 supplied with steam from boiler 16.  The less volatile component of the mixture is withdrawn as vapour through choke-tubes 35, chamber 36 and outlet 37.  The vapour streams leave the upper ends of conduits 11 through outlets 26 which lead to chamber 24 and condenser 28.  The condensate is passed to chamber 31.  The liquid-level 39 in chamber 31 is maintained constant by a continuous small addition of feed-liquid through inlet 33, corresponding to the amount of vapour withdrawn through outlet 37.  The inlet 43 of each choke-tube 32 is provided with a wire-mesh sleeve 40, Fig. 2, which prevents bubbles, disengaged from liquid supersaturated with vapour or gas, passing to the inlet.  In a modification, the inlets of the choke-tubes are directed upwards, and are protected by fabric sleeves.  In another modification, suitable for use with a column operated at a pressure below atmospheric each strainer has an aperture through which any bubbles which form inside it, can escape upwards.
Patent GB-756959-A (GB)
Title: Synthetic lubricants
Inventor: HOARE MICHAEL FREDERICK
IPC: H04M1/65
Filed: 1953-10-20
Abstract: A process for stabilizing the low-temperature viscosity properties of a lubricating oil containing a complex ester comprises adding a minor proportion of an oilinsoluble salt of an organic nitrogen-containing base  heating the mixture to above 100 DEG C. and filtering the reaction mixture.  The nitrogen-containing base may have the general formula <FORM:0756959/III/1> where R1, R11, and R111 are hydrocarbon groups having not more than 10 carbon atoms, or hydrogen.  Examples of salts are guanidine carbonate, sulphate and acetate.  Other suitable salts are quaternary ammonium salts having aliphatic hydrocarbon groups containing not more than 10 carbon atoms, and preferably where the anion is carbonate, sulphate chloride or acetate.  The salt is added in an amount of 0.1 to 7 per cent by weight to the lubricant which is then heated with stirring to a temperature preferably between 170 DEG  and 190 DEG C.  The lubricating oil may be a blend of a complex ester and a di-ester, preferably containing more than 20 per cent by volume of the complex ester. The diester may be one having the formula R2OOCR1COOR12 or R3COOR4OOCR13, and the complex ester may be one having the formula R2OOCR1COOR4OOCR3, R2 (OOCR1COOR4)nOOCR11 COOR12, or R3COOR4(OOCR1COOR14)n OOCR13, where R1 and R11 are the residues of dicarboxylic acids HOOCR1COOH; R2 and R21 are residues of monohydric alcohols R2OH; R3 and R31 are residues of monocarboxylic acids R3COOH; R4 and R41 are residues of glycols HOR4OH; and n is from 1 to 6.  In an example guanidine carbonate is added to a blend of dinonyl sebacate and a complex ester prepared from nonyl alcohol, sebacic acid and a polyglycol which is mainly tetra-ethylene glycol.  The blend is then heated at 180 DEG C. and filtered.  Specification 666,697 is referred to.
Patent GB-284183-A (GB)
Title: Improvements in or relating to the covering of buckle frames, hooks, or the like frames with leather
IPC: B68F1/00
Filed: 1926-10-26
Abstract: 284,183. Richards, W. T., and Richards, A. Oct. 26, 1926. Shaping. - Buckles, hooks, and like frames are covered with leather by means of press tools or dies 1, 2 which have respectively a pilot recess 4 and projection 6 each surrounded by a groove corresponding in shape to the frame to be covered, to press the leather on the frame. The frame, after the leather has been wrapped around it, is placed in the groove 7 and pressure applied by the tool 1, the groove 5 being shaped to stretch the leather on the frame before it is compressed. A device 10 is provided to eject the frame from the die 2 for finishing.
Patent GB-672006-A (GB)
Title: Lathe chuck
Inventor: STONER ARTHUR MERRICK
IPC: B23B31/20
Filed: 1950-11-27
Abstract: 672,006. Chucks. JACOBS MANUFACTURING CO. Nov. 27, 1950, No. 28993/50. Class 83 (iii). A bevel-closing chuck in which a collet 64 is operated by a sliding member 30 movable by an outer rotatable sleeve 20, has an external shock collar 40 mounted with limited rotation on the sleeve so as to be capable of giving a hammer blow to the sleeve and has also releasable means for locking the collar to the sleeve. The collet is of the type with rigid members 64 interconnected by resilient material 62, as described in Specification 584,258, and has conical external surfaces engaging similar surfaces 16 on the body 10 and forward bevelled surfaces 33 engaged by the end of the sliding member 30 The member 30 is keyed to the body at 15 and is in screwed engagement with the sleeve 20 which is axially fixed on the body by ball-bearings 22 and has a pair of lugs 26, 27 received in grooves 45, 46 in the shock collar 40. When the chuck spindle is braked, the momentum of the shock collar causes it to over-run and strike the lugs with, possibly, enough force to open the chuck and, to prevent this, a pin 70 extends through the collar into one of several holes 17 in the body 10. The pin can be withdrawn by a tilting ring 71 which is locked in the tilted or untilted position by several spring-pressed plungers 80 engaging, respectively, the upper or lower of two inclined surfaces 48, 47 on the collar hub.
Patent GB-1359631-A (GB)
Title: Apparatus for and a method of electrical resistance welding ce mented carbide pieces to the teeth portions of a saw
IPC: B23K31/02
Filed: 1971-06-21
Abstract: 1359631 Welding by pressure AMADA CO Ltd 21 June 1971 [22 July 1970] 29024/71 Heading B3R Apparatus for welding cemented carbide pieces 4 to the teeth of a saw 16, e.g. a circular or band saw, comprises means for intermittently feeding the saw to bring successive teeth to the welding position, feed means 26 for feeding carbide pieces individually to recesses Ca, Cb in the teeth, an upper electrode adapted to be raised and lowered and having a recess 28a shaped to fit a carbide piece and to press it into the recess Cb, and a vice 24 adapted to clamp the blade at the welding station and serving also as the lower electrode. As shown, the recesses Ca, Cb may be provided with small projections to improve the welding process. The carbide pieces may be of other shapes than the cylindrical pieces shown, e.g. square, rectangular or triangular.
Patent GB-450396-A (GB)
Title: Improvements in or relating to two-stroke internal combustion engines
IPC: F02B25/00
Filed: 1934-10-10
Abstract: 450,396. Two-stroke engines. BOUVIER, L., Les Terrasses, Cavalaire, France. Oct. 10, 1934, No. 29040. Convention date, Sept. 17. [A Specification was laid open to inspection under Sect. 91 of the Acts, May 9, 1935.] [Class 7 (ii)] In a two-stroke engine cylinder in which exhaust ports c<1> are uncovered by the piston before the ad mission ports c<11>, precom pression of the charge is obviated by omitting the exhaust pipe and discharg ing the exhaust gas to the atmosphere direct or through a diverging pipe f Direct admission of the charge may or may not be through a filter g. Speci. fication 445,556 is referred to. Reference has been directed by the Comptroller to Specifications 284,735, [Class 7 (ii)], and 348,484.
Patent GB-844407-A (GB)
Title: Process for the production of ammonium uranate
IPC: C01G43/00
Filed: 1957-09-16
Abstract: Ammonium uranate is precipitated from an aqueous solution of a hexavalent uranium salt, e.g. uranyl chloride, fluoride, sulphate, or nitrate, having a pH of less than 6, by passing a gaseous mixture of ammonia and an inert diluent, e.g. air, through the solution with vigorous stirring until a pH of 6-7, preferably 6.5 is reached, the ratio of inert gas to ammonia being at least 1:10. The reaction may be continued by the continuous introduction of gas and solution, the flow of gas or solution being regulated so as to maintain the above pH.  The uranium salt solution may be a hydrofluoric acid solution of uranyl fluoride obtained by hydrolysis of uranium hexafluoride, or a solution obtained by acidifying a solution of a complex hexavalent uranium carbonate. A product containing less than 1 X 10-5% of boron (based on uranium) may be obtained from a solution containing 10-2% of boron.  Precipitation in the form of needles may be effected at a temperature of above 70 DEG C. and with a volumetric ratio of ammonia to inert gas of 1-5 to 1.  Precipitation in the form of spheres may be effected at a temperature of below 70 DEG C., e.g. 20-50 DEG C. According to Example 1, spherical particles having a mean diameter of 6 are obtained by introducing a mixture of 1 vol. ammonia and 3 vol. air with stirring at a rate of 150 1/min. and for a period of 5 hours into a uranyl nitrate solution which contains 90 grm./1. of uranium and a small amount of nitric acid and which is held at a temperature of 50 \sB 5 DEG C.  When a pH of 6.5 is reached a mixture of 1 vol. ammonia and 2 vol. air at a rate of 150 1./min. and uranyl nitrate solution at a rate of 2 1./min. are continuously introduced while the temperature is maintained at 50 \sB 5 DEG C. and the pH is maintained at 6.5.  According to Example 2, needle-like crystals are obtained by introducing a mixture of 1 vol. ammonia and 2 vol. air with stirring at a rate of 60 1./min. and for a period of 2.5 hours into a hydrofluoric acid solution of uranyl fluoride obtained by the hydrolysis of uranium hexafluoride, the solution being held at a temperature of 80-90 DEG C.
Patent GB-781863-A (GB)
Title: Improvements in tubulous vapour generating units
IPC: F22B21/34
Filed: 1955-02-09
Abstract: 781,863. Water-tube steam boilers; regulating steam temperature. BABCOCK & WILCOX, Ltd. Feb. 9, 1955 [Feb. 9, 1954], No. 29105/56. Divided out of 781,861. Drawings to Specification. Classes 123(2) and 123(3) The subject-matter of this Specification is identical with that described in Specifications 781,861 and 781,862 but the claims differ.
Patent GB-1085825-A (GB)
Title: Improvements in or relating to the measurement of gas dissolved in liquid
Inventor: TICHENOR GEORGE HUMPHREY
IPC: G01N25/14
Filed: 1965-07-09
Abstract: 1.085,825. Determining gases in liquids. FOXBORO-YOXALL Ltd. June 24, 1966 [July 9, 1965], No. 29187/65. Heading B1X. The concentration of a gas dissolved in a liquid is determined by measuring the temperature at which bobbles are formed when the liquid is heated to above the saturation temperature. In a first embodiment (Fig. 1) liquid is circulated between an upper reservoir 2, and a lower chamber 4 containing a heater 5 transmitting a constant quantity of heat to the liquid, by means of the lift imparted in a duct 7 by bubbles rising therethrough and the concentration of gas inferred from the temperature difference between the liquid in the reservoir and in the vicinity of the heater. When the concentration is large, the number of bubbles is greater, the circulation more rapid and the temperature difference smaller. In a second embodiment (Figs. 3 and 4, not shown), a generally similar circulation system comprises a transparent upflow tube (7) and a photocell detector system (7-9) detects the scattering due to bubbles in the tube and controls the heater by means of an amplifier and relay to provide a constant rate of bubble production: the concentration is inferred from the temperature in the vicinity of the heater. In a third embodiment (Fig. 5), a device comprising metallic strips 16, 17 embracing a heat ing element 15 is rigidly attached to support 12. Current is supplied to the element through contacts 14, 18 when the device is immersed in a liquid and some of the bubbles of gas which are released when the liquid is warmed, are entrapped under strip 17 which consequently becomes hotter than strip 16. The device distorts and contacts 14, 18 part, to cut off the current. A thermistor 19 measures the temperature of the bubble interface, from which the gas concentration is inferred.
Patent GB-761539-A (GB)
Title: Improvements in or relating to trays, pans, and other open-mouthed containers
Inventor: ORWIN OLAF JOHN BARCLAY
IPC: B65D21/04
Filed: 1952-11-20
Abstract: 761,539. Trays. FISHER & LUDLOW, Ltd. Nov. 17, 1953 [Nov. 20, 1952], No. 29285/52. Addition to 695,502. Class 18. The tray of the main Specification is formed as a sheet metal pressing and has a peripheral flange or bead 25 to provide a reinforcement. The tray has tapered sides to facilitate nesting and inward abutments 19, 21 which support a similar tray stacked above, the tray above being turned through 180 degrees from the nesting position. A rectangular tray may have the abutments formed by recesses in end walls 15, 16, or one end wall 16 may be shorter than the other 15, and the side walls be recessed as at 28. In the latter form, projections 29 on the upper edge of the tray prevent longitudinal movement between stacked trays. Handles 25 are provided.
Patent GB-431364-A (GB)
Title: Improvements in apparatus for moistening or gumming envelopes, labels and the like
IPC: B43M11/02
Filed: 1934-10-13
Abstract: Apparatus for moistening or gumming by hand envelopes, labels, or the like comprises a revoluble roller 2 adapted to be moistened by the liquid but not subject to uplift by the liquid, above which is a roller, yoke, rail or the like 3, urged downwardly by its own weight only, but free to move upwardly.  The pressure device may be arranged at a certain minimum distance from the moistening roller, <PICT:0431364/III/1> <PICT:0431364/III/2> which distance may be adjustable.  The moistening roller may dip into the liquid, or it may be situated above the level of the liquid, and may be fed by auxiliary roller; the rollers may be covered with an absorbent material.  The pressure device 3 is preferably bevelled to facilitate introduction of the envelope &c.
Patent GB-1216559-A (GB)
Title: Electronic binary multiplier
Inventor: BJOERNER DINES
IPC: G06F7/544
Filed: 1968-06-20
Abstract: 1,216,559. Arithmetic circuitry. INTERNATIONAL BUSINESS MACHINES CORP. 20 June, 1968 [30 June, 1967], No. 29425/68. Heading G4A. An electronic binary multiplier comprises an array of multiplier cells, each adapted to generate a binary product signal from first and second binary input signals and each identified by a different two-digit co-ordinate (m, n), the same first binary input signal being applied in parallel to all cells with the same coordinate digit n, and the same second binary input signal being applied serially to all cells with the same co-ordinate digit m. Fig. 1 shows a binary multiplier comprising an array of cells 1 (large squares) each including flip-flops 2, 3, 4 having input gates (not shown) enabled by a common clock pulse train, and logic 5 which multiplies one bit of the multiplicand by a bit of the multiplier- and adds the result to a sum bit on a line 7 from the cell 1 in the next lower row and next left column (if any) and to a carry bit on a line 8 from the cell 1 in the same row and next left column (if any) to produce a sum bit and a carry bit on outgoing lines 7, 8 respectively. The multiplicand is applied in parallel at b0-b3 and is gated into the flip-flops 2 in the first column by a first clock pulse at which time the lowest order bit of the multiplier a0 is applied in parallel to the logic 5 of every cell 1 in the first column. The second clock pulse gates sum and carry bits on lines 7, 8 from the first column into flip-flops 4, 3 of the second column and at this time the second bit of the multiplier a1 is applied to the logic 5 of every cell of the second column, and so on. The bits of the product appear at P0-P7 in turn respectively. Since only one column is active at any time, a series of multiplications can be performed concurrently, a new one being started every clock pulse time. A second embodiment has 1, 1, 1, 2 extra cells at the right end of the first to fourth rows respectively and applies the bits of a third operand to the flip-flops 4 of the leftmost column and the lowest row (except in the rightmost cell), at the appropriate times, to evaluate AB + C where C is the third operand and A and B are a0-a3 and b0-b3 respectively. A third embodiment feeds the " third operand " inputs of the second embodiment from the outputs P0, P1 &c. In the cases of the outputs P0, P1, P2 this is done via shift registers of 3, 2, 1 stages respectively (assuming four rows of cells as in Fig. 1) to compensate for the relative delays between production of related signals at those outputs P0-P3 which feed the cells of the leftmost column. In this way a sum of products is obtainable, e.g. for multiplication of matrices.
Patent GB-208130-A (GB)
Title: Evaporating apparatus and method of operating same
IPC: B01D1/28
Filed: 1923-11-22
Abstract: 208,130. Metallbank und Metallurgische Ges. Akt.-Ges., and Gensecke, W. Dec. 11, 1922, [Convention date]. Condenser systems; vapours, utilizing for effecting evaporation.-In evaporating liquids at low temperatures and under reduced pressure, the vapours produced in the evaporators a are brought to a higher pressure by passage through a compressor b preferably of the jet type before being led into the condenser f which may be of the surface or jet type and is exhausted by a pump g. The Specification as open to inspection under Sect. 91 (3) (a) describes also that the steam leaving the jet b may be passed through the heating-device c of the evaporator before being passed to the condenser. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specifications 840/02 and 14042/04.
Patent GB-639339-A (GB)
Title: Improvements relating to electrically operated devices for indicating and measuring the level of liquids
IPC: G01F23/24
Filed: 1947-11-05
Abstract: 639,339. Liquid-level indicators. EVERSHED & VIGNOLES, Ltd., and NEEDHAM, J. C. Nov. 5, 1947, No. 29546. [Class 40 (i)] In a liquid-level indicator actuated through a follow-up mechanism, a displacer 1 is held partly submerged in the liquid so that a net resultant force is transmitted thereby, e.g. through a cord 2 and drum 4, to a radial contact arm 7, the force being normally balanced by a tension spring 17 connected between the arm 7 and the follow-up disc 16 coaxial with the spindle 6. Variation in the liquid level causes the contact 9 on the contact arm to make with one or other of the contacts 10, 11 on the disc 16 to energize the split phase follow-up motor 30 which through step-down gearing 34-37 drives the follow-up mechanism in the appropriate sense. An indicator 42 may be driven by the follow-up disc 16 and a remote indicator 44 may be actuated from the motor-driven spindle 36 by a step-by-step transmission system 43. According to the Provisional Specification, coarse and fine pointers may be provided on the indicator 42.