baber/WOPTO huggingface dataset:
Patent GB-1390956-A (GB)
Title: Centrifuges
IPC: B04B9/12
Filed: 1972-05-05
Abstract: 1390956 Centrifugal separator HERAEUSCHRIST GmbH 5 May 1972 [6 May 1971 30 July 1971] 21113/72 Heading B2P [Also in Division F2] In a centrifuge, Figs. 1 and 2, having a rotor 17 secured to a drive shaft 24, a member 3 rotatable with the drive shaft has, on the side remote from the rotor, a recess 11 into which a stationary spigot 4 projects and constitutes a support on which the member 3 is rotatably mounted, means being provided to fill the space between the bottom of the recess and the supporting face of the spigot with lubricant.  The member 3 is the rotor of an electric drive motor at a lower part of the centrifuge housing 1 from the bottom of which the spigot 4 extends. One or more bearing bushes 12, with holes 13 for lubricant return are provided between the spigot 4 and the wall 27 of the recess. Alternatively the bushes may be replaced by annular bearing surfaces protruding from the wall 27 or by ball, roller or needle bearings. A spherical or conical bearing member 14 projects from the bottom of the recess 11 into a correspondingly shaped cavity in the supporting face 26 of the spigot 4. Lubricating oil under pressure is introduced into the recess 11 through at least one longitudinal passage 15 in the spigot 4 via radial passages 16 and via the space between the member 14 and the face 26. The oil, may be fed from a pump 5, Fig. 1, via a line 6 and flows back to the pump via a space 18, a drain opening 19, a return line 7 and a degasifying chamber 8 and/or a filter. A pressure accumulator 9 connected to the line 6 through a non-return restrictor-valve 10 automatically takes over the supply of lubricating oil should the pump 5 fail. An oil pressuresensitive control switch is provided in the line 6 so as to interrupt the current to the electric motor 2, 3 as long as the centrifuge rotor is not secured to the shaft 24. In a modification, Fig. 2b (not shown), a hydrodynamic bearing is provided between the member 14 and the supporting face 26 of the spigot by accommodating in the cavity of the face 26 a spherical half-shell having helical grooves in its concave surface. In a further modification, Fig. 3, the spigot 4 has a stepped configuration and two drain apertures 20, 21 are provided in the bottom of the housing 1 and are separated by an annular wall 29 which is spaced from the motor rotor 3 to provide a braking passage 23 for lubricating oil. In normal operation the oil flows through aperture 20. For braking the flow through the aperture 20 is interrupted by a valve 22 so that the oil expelled from the recess 11 passes into the braking passage 23 and runs away via the aperture 21 and a by-pass line 30.
Patent GB-403905-A (GB)
Title: Improvements in and relating to printing rolls
IPC: B41N7/06
Filed: 1933-07-27
Abstract: 403,905. Printing-surfaces. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Safford, M. M.; 1, Campbell Place, Schenectady, New York, U.S.A.) July 27, 1933, No. 21175. Convention date, July 27, 1932. [Class 100 (ii).] Printing-rolls, more especially offset rolls, are made by extruding a mixture of cured and uncured alkyd resins on to a core, and subsequently curing the resinous layer by heat. The alkyd resins used are prepared as described in Specifications 365,140 and 396,354, [both in Group IV], by reacting together a dibasic aliphatic acid, e.g. succinic or adipic acid, and a di-hydric alcohol, e.g. ethylene glycol, with a polyhydric alcohol having preferably three ormore hydroxyl groups in the molecule, e.g. glycerine, and a polybasic aromatic acid or its anhydride, e.g. phthalic anhydride. A mixture of cured and uncured or partly cured resin, together with a filler such as cork, wood flour, cotton flock, lamp black, or titanium oxide, is extruded from a container 23, Fig. 1, on to a core 10, preferably a steel tube, which is secured by a bolt 11 to the die 12 of the extrusion apparatus. The die comprises two screwed parts 15, 16, and the part 15 carries a fluted part 17 to which the bolt 11 is screwed and through the fluted passages 18 of which the resin is extruded in tube form on to the core 10 under pressure of a plunger 24. The completely covered core 10 is secured between plates 26, 27, Fig. 3 connected by a rod 28 fitted with nuts 29, 30. Before submitting the core to heat for the final curing process, it is wrapped with a layer 31 of cloth tape, to permit the escape of gases and protect the resin from the final winding of cord or wire 32. The heat is maintained from one to four days according to the degree of hardness required. After curing the roll is machined to a true cylinder.
Patent GB-716468-A (GB)
Title: Improvements in or relating to gas governors
Inventor: JEAVONS MALCOLM WILLIAM
IPC: G05D16/06
Filed: 1952-08-25
Abstract: 716,468. Fluid-actuated valves. JEAVONS & CO., Ltd., E. E. Aug. 24, 1953 [Aug. 25, 1952], No. 21257/52. Class 135 In a high pressure gas governor a spring- or weight-loaded diaphragm 14 actuates through a lever 22 pivoted at 23, a shuttle lift valve assembly spring-loaded upwardly in a vertical gas inlet connection 12 so that normal regulation due to variation in outlet pressure beneath the diaphragm is by the upper valve 25 with respect to its seat 29, while on failure of the inlet pressure the lower valve 26 closes on its seat 30 and is only opened by manually depressing the assembly, e.g. by the plunger 20.
Patent GB-1418955-A (GB)
Title: Conveyors for use in mineral mining
IPC: B65G19/18
Filed: 1973-05-04
Abstract: 1418955 Mineral mining installations GEWERKSCHAFT EISENHUTTE WESTFALIA 4 May 1973 [5 May 1972] 21285/73 Heading E1F In a mineral mining installation in which a conveyor formed from channel sections 10 carries a guide means for a mining machine, the guide means is provided with upper and lower channels 19, 20 separated by a spacer 17 for a mining machine drive chain, and adjacent channel sections 10 are secured together by detachable connecting means accessibly disposed within the guide means and aligned with the spacers so as not to project into the channels. The guide means comprises upstanding plates 14 screwed to the side walls of the channel sections 10 with covers 24 pivoted at 26 for movement in direction P and spacers 17 are screwed to the plates 14. Each end of a plate 14 carries an upstanding spigot 28 and a connecting piece preferably a chain link 30 and is placed over the spigots to secure the channel sections together. A pin 32 fits into an inclined bore 32' in one spigot 28 to hold the link in place.
Patent GB-705556-A (GB)
Title: Improvements in and relating to portable sterilisers
IPC: A61L2/26
Filed: 1952-08-25
Abstract: 705,556. Portable sterilizers GRANTHAM, G., GRANTHAM, L. M., CALVERT, L. S., and FOX, P. S. Nov. 28, 1952 [Aug. 25, 1952], No. 21324/52. Class 81(1) A portable sterilizer for surgical instruments and the like comprises a supporting rack formed by a plurality of plates held in vertical spaced relation with the two uppermost plates provided with resiliently faced apertures, an open top container 1 provided with a lid 3 and a carrying handle 6 and having a pipe 7 extending through its base with externally operable means for closing the lower end of the pipe 7, and a detachable pan 9 into which the lower portion of the container 1 may partially telescope. As shown, the lid 3 slides in grooves 2 formed in the upper edge of the container 1 and has a closable vent 5. The pipe 7 upstanding from the base of the container is closed by a slide 8 The detachable pan 9 is provided with an internal lip on which the bottom of the container 1 will seat and has a cut-away portion 11 and handle 12. The rack has three plates 13, 14 and 15 held in vertical spaced relation by four rods 16, 17, 18 and 19 and nuts 20. Rubber or like resilient sheets 22 and 23 are placed on the plates 13 and 14 respectively and have holes registering with but somewhat smaller than similar holes, or a slot, in the plates 13 and 14. Plate 15 has apertures 26 to accommodate pipe 7. A handle 27 is provided on plate 13. Alternatively, plates 13 and 14 may be coated with rubber, or rubber or the like resilient rings may be located in the apertures of the plates.
Patent GB-1341109-A (GB)
Title: Benzocycloheptaisoquinoline derivatives
IPC: C07D455/04
Filed: 1971-04-19
Abstract: 1341109 Benzocyclohepta - (pyrrolo-, pyrido- or azepino-) isoquinolines AYERST McKENNA & HARRISON Ltd 19 April 1971 [10 Feb 1970 21 Dec 1970] 21427/71 Heading C2C The invention comprises compounds of formulµ and acid addition salts of compounds (I), wherein Alk is -(CR 2 ) 3-5 - (Ia) or -CR<SP>11</SP> 2 -CHRCYZ-CR 2 - (joined to N by CR<SP>11</SP> 2 ) (Ib); R, R<SP>1</SP> and R<SP>11</SP> are each H or alkyl; Y is H, OH or C 2-10 -alkanoyloxy; Z is H, alkyl, alkenyl, alkynyl, C 3-6 -cycloalkyl, alkyl-C 3-6 -cycloalkyl or PhiX is an anion; and each alkyl, alkenyl or alkynyl contains up to 7 C atoms. The invention comprises also a specific ethylenedithioketal of the type indicated under reaction 3(b), below. In examples, (1) the alcohols (Ib : Y= OH) are prepared by reacting the corresponding ketones (CYZ=CO) with an organometallic reagent containing a Z radical, or by reducing the ketones, e.g. with NaBH 4  (when Z=H); (2) the alcohols are esterified with alkanoic acid anhydride; (3) Ia are prepared by (a) dehydrating the alcohols followed by hydrogenation; (b) reacting the ethylene dithioketals of the said ketones with Raney Ni; (c) reducing IV, or reacting IV with alkylmagnesium halide; (4) IV are prepared by reacting (a) a 5-(omegachloro- or hydrozy - alkanamidomethyl)-10,11- dihydro - 5H - dibenzo [a, d] cycloheptene with POCl 3 ; (b) a 5-(2-oxocyclopolymethyleneiminomethyl) - 10,11 - dihydro - 5H - dibenzo [a, d] cycloheptene with POCl 3 ; (c) Ia with Hg(OAc) 2 , followed by HCl. Different stereoisomeric forms of Ia may be isolated, depending upon the reducing agent employed in method 3(c). Starting materials also prepared are 5-hydroxy- 5-methoxymethyl-, and 5-formyl-10,11-dihydro- 5H-dibenzo [a, d] cycloheptene; and the 2,4- dinitrophenylhydrazone of the latter. Therapeutic compositions for oral or parenteral administration comprise the above compounds (I), which have C.N.S. depressant, anticonvulsant and anti-inflammatory activity.
Patent GB-294546-A (GB)
Title: Improvements relating to the transmission of pictures
IPC: H04N1/36
Filed: 1928-07-24
Abstract: 294,546. British Thomson-Houston Co., Ltd., (Assignees of Kell, R. D.). July 25, 1927, [Convention date]. Synchronous movements and synchronism-indicators.-A copying-telegraph receiver has means 18 for receiving and separating a plurality of impulse trains, means 25 for driving the apparatus, manually operated means 32 for controlling the speed of the driving-motor by varying the intensity of the exciting current, and means for indicating when the motor is in synchronism with the variations in magnitude of one of the sets of impulses. The transmitter (Fig. 1, not shown) transmits sets of electric impulses which are respectively dependent on the speed of the transmitter through a contact driven together with the transmitting-drum and on the variation in the light-value of the successive elemental portions of the picture to be transmitted. The speed of the driving motor at the receiver is controlled by a tapping-key 32 and synchronism is indicated visually by a disc 30 rotated by the motor and provided with an opening 31 for viewing a light 20 which is controlled by the received impulses in dependence on the speed of the transmitter and by a switching-device 21 driven with the receiving-drum 23.
Patent GB-1381221-A (GB)
Title: Magnetic sheet classifiers
IPC: B65G47/74
Filed: 1973-05-04
Abstract: 1381221 Magnetic retention and discharge of articles from conveyer belts; delivering sheets WEAN UNITED Inc 4 May 1973 [10 May 1972] 21450/73 Headings B8R and B8A Magnetizable sheets may be conveyed by a conveyer belt 31 to a conveyer belt 66, or they may be transferred to an upper belt 12 and thereby transferred to a belt 65. The belts 31 and 12 have respective series of magnets which are selectively energized to retain each sheet against the one or the other belt according to a sensed characteristic of the sheet. By arranging the magnets of the lower belt 31 in a curved path, a sheet retained on the lower belt is bent into a curve so as to eliminate the need for any deflecting member. The degree of bending however is less than that needed to exceed the elastic limit of the sheet. The tension of both belts may be adjusted and the upper belt assembly may be bodily raised or lowered by a winding mechanism which may be operated from more than one position. The magnets of both belts are arranged in groups, each of which are mounted on respective plates which may be removably secured to the conveyer framework. Alternatively, the lower conveyer may be straight, and the upper conveyer curved.
Patent GB-1269876-A (GB)
Title: Method of making minute polymeric capsules
IPC: B01J13/08
Filed: 1970-05-05
Abstract: 1,269,876. Making, en masse, minute polymeric capsules. NATIONAL CASH REGISTER CO. 5 May, 1970 [24 June, 1969], No. 21530/70. Heading B8C. A method of making, en masse, minute polymeric capsules containing a hydrophilic core material comprises the steps of establishing a liquid system of at least a first and second hydrophobic polymeric material in an organic solvent material, the polymeric materials being selected such that they form a homogeneous, single phase, liquid solution in the solvent material below a certain critical temperature and undergo liquid-liquid phase separation above the critical temperature, the liquid system having dispersed therein particles of the core material; and agitating the system while maintaining the temperature thereof above the critical temperature to achieve wetting and enwrapping of the dispersed particles of core material by the separated phase to form liquid-walled capsules. The capsules are then washed in a liquid which is miscible with the solvent material but is not a solvent for the polymeric materials to form rigid walled capsules having walls of substantially homogeneous solution of the polymeric materials. The washing liquid is maintained at a temperature below the critical temperature in order to quench the capsule wall material, the capsules preferably being overcoated with a hydrophobic waxy material. The first polymeric material is halogenated rubber and the second polyethylene-co-vinyl-acetate, or polyvinylmethyl ether, the solvent material being a mixture of cyclo-hexane and toluene or, is selected from benzene, toluene, xylene, carbon tetrachloride, and methyl isobutyl ketone.
Patent GB-1011585-A (GB)
Title: Corrosion resistant magnesium alloys having a grain-refined structure
IPC: C22C25/00
Filed: 1962-06-04
Abstract: Magnesium base alloys comprise magnesium and sufficient Me (Ti, Mn, V, Cr, Zr or Hf) and Si to form a phase of the form Me5Si3 with the optional addition of 0.3-10% Zn and conventional amounts of Ag, Al or Cd.  Me is present in the range 0.0001-3% and Si in the range 0.01-0.5%.
Patent GB-257939-A (GB)
Title: Improvements in systems for controlling the interchange of power between direct andalternating electric current circuits
IPC: H02P25/32
Filed: 1926-09-02
Abstract: 257,939. British Thomson-Houston Co., Ltd., (Assignees of Alexanderson, E. F. W., and Mittag, A. H.). Sept. 2, 1925, [Convention date]. Vapour apparatus, arrangements of.-A directcurrent motor, has its armature 2 supplied from polyphase mains 3 through a transformer 6 and the anode 7 and cathode 8 of a valve 9, the field 12 being similarly supplied through ancde 13 and cathode 14 of another valve 15. The grids 22 of the valve 9 are connected through a transformer 24 to a phase control device 25, so that angular adjustment of its rotor 26, alters the phase difference between the grids and the anodes and therefore alters the armature current. The grids 16 are similarly connected to another phase control device 28, the rotor 29 of which is mounted on the same shaft 32 as the rotor 26, but the stators are connected so that the current in the field 12 is decreased as the armature current is increased. The same effect can be obtained by the use of only one device 25, in which case the anodes of the valve 15 are connected to the transformer 24 and the grids are connected to the transformer 6.
Patent GB-383244-A (GB)
Title: Improvements in rotary air or gas compressors
IPC: F04C18/344
Filed: 1932-08-02
Abstract: 383,244. Force-feed lubricating. WADE, J. T., Fairfield Works, West Wycombe Road, High Wycombe, Bucking- hamshire. Aug. 2, 1932, No. 21698. [Class 12 (iii).] In a rotary compressor of the outwardlysliding vane type, the delivery fluid acts upon oil in a sump 7 to force the oil up a pipe 33. The oil passes along a conduit 35, controlled by a screw valve 40, to distributing passages 36.
Patent GB-1294412-A (GB)
Title: Improved tray for liquid steriliser
Inventor: GLASSON DOUGLAS HAIGH
IPC: B01L3/00
Filed: 1971-04-19
Abstract: 1294412 Ultra-violet sterilization apparatus AQUATRON CORP (AUST) PTY Ltd 19 April 1971 [19 May 1970] 21731/71 Heading H5R A tray for containing liquid to be sterilized, by ultra-violet radiation, having a hole 7 for discharge of the liquid, includes also an ultraviolet reflector 8 mounted on the tray beneath the hole in such a position that it avoids contact with discharging liquid but reflects rays passing through the hole 7 from the ultra-violet source against the underside of the tray at least around the edge of the hole, whereby to sterilize beads of liquid which form around the edge of the hole in a position screened from direct radiation from the source. Preferably the reflector 8 is dimensioned to form an obstacle to the contacting of the undersurface of the tray by the neck of a receptacle for the discharging liquid. Either a single annular weir, 5, or two spaced weirs stretching across the width of the tray, may be employed to maintain the trough full to predetermined depth. A variety of configurations is disclosed (Fig. 4, not shown), and dimensions are given.
Patent GB-312029-A (GB)
Title: Improved manufacture of artificial silk
IPC: D01F2/04
Filed: 1928-07-26
Abstract: 312,029. Kohorn, Oscar Freiherr von, (trading as Rohorn & Co., 0.), and Perl, A. May 18, 1928, [Convention date]. Drawings to Specification. Apparatus for making filaments; ammoniacal copper cellulose solutions, processes for making filaments from.-In the manufacture of artificial silk by the stretch-spinning process, particularly from ammoniacal-copper solutions of cellulose, the formation of bubbles in the precipitating liquid is prevented by avoiding the production of a reduced pressure within the spinning apparatus and bv using a precipitating liquid that has been heated, prior to use, to a temperature higher than the spinning temperature. Thus, the precipitating liquid may be water used at 32‹ C. after having been kept for one hour at 42‹ C. Specification 113,010 is referred to.
Patent GB-676789-A (GB)
Title: New and improved process for the manufacture of paper and the like
IPC: D21F1/00
Filed: 1949-08-22
Abstract: 676,789. Preparation of paper pulp. KLEMM, K. H. Aug. 22, 1949 (Oct. 16, 1948], No. 21737/49. Class 96. In the continuous manufacture of paper from half stuff which varies in consistency &c. the half stuff is first separated into relatively fine and coarse constituents, e.g. using a sieve with 0.7 mm. diameter holes, and the two constituents are re-mixed in such proportions as will give a web formed therefrom a satisfactory wet strength. Such re-mixing may be effected using a plurality of concentrating machines and varying the streams thereto. Paper may thus be made from mechanical wood pulp without adding cellulose.
Patent GB-605575-A (GB)
Title: Improvements in and relating to spindle mountings for textile spinning and twister frames
IPC: D01H7/08
Filed: 1945-08-24
Abstract: 605,575. Spinning and twisting spindle arrangements. SACO-LOWELL SHOPS. Aug. 24, 1945, No. 21744. Convention date, June 26, 1941. [Class 120(ii)] An arrangement for facilitating the setting of a spindle in a textile spinning or twisting frame includes a supplemental bolster 4 having a shank 5 which passes through an aperture in a spindle rail 3, with respect to which the supplemental bolster 4 is laterally and longitudinally adjustable to centre the spindle relative to its associated ring R. Means are also provided for angularly adjusting the spindle bolster 2 on the supplemental bolster 4. After centring, the supplemental bolster 4 is clamped by a nut 7 and, after angular adjustment, the spindle is secured by a nut 12. The top of the supplemental bolster 4 is concave, the arc of concavity being struck through a point on the spindle which, preferably, corresponds with the lowest position of the ring. The spindle bolster 2 has a shoulder of convex form curved about the same centre, so that the axis of the spindle may readily be set to lie in the path of traverse of the ring R.
Patent GB-267808-A (GB)
Title: Process for the removal of liquid polymers from synthetic rubber
IPC: C08C3/02
Filed: 1926-09-03
Abstract: 267,808. Carpmael, W., (I. G. Farbenindustrie Akt.-Ges.). Sept. 3, 1926. Caoutchouc, synethetic.-Liquid polymerization products are removed from synthetic rubber by treating it with a porous adsorbent, such as activated carbon, in a powdered condition. The treatment may be carried out with gentle warming and with or without the application of reduced pressure, and the adsorbent may be removed mechanically or by washing with water.
Patent GB-889442-A (GB)
Title: Improvements relating to aerials
Inventor: BAILEY KENNETH JEFFREY
IPC: H01Q19/04
Filed: 1957-07-10
Abstract: 889,442. Screw fastenings. SHARDLOW ELECTRIC WIRES Ltd. Oct. 1, 1958 [July 10, 1957], No. 21866/57. Class 44. [Also in Group XL(c)] A clamp for holding an aerial rod element perpendicular to a boom when the aerial is erected, or parallel to the boom when collapsed for transportation, comprises a block 3 which has formed in it an arcuate recess 4 and a sleeve 5. A bolt 9 passes through the boom 1 and screws into a nut 7 held in the block 3. In the erected, position the block is rotated about the bolt until the recess 4 engages with the boom. The rod 2 is slid in sleeve 5 until a spigot 15 on collar 14, which is fixed to the rod, engages with a slot in the sleeve 2. Upon tightening, the bolt 9 the block is secured to the boom and the element held in the sleeve, a hole 13 being provided to accommodate the bolt.