baber/WOPTO huggingface dataset:
Patent GB-1343571-A (GB)
Title: Roller bearing for supporting a longitudinally movable part on anogher part
IPC: F16C33/46
Filed: 1972-04-26
Abstract: 1343571 Bearings W SCHAEFFLER and G SCHAEFFLER [trading as INDUSTRIEWERK SCHAEFFLER oHG] 26 April 1972 [4 May 1971] 19445/72 Heading F2A In a rectilinear-motion roller bearing, the rollers 4 enter and leave a bearing path section in a gap between parallel tracks 2, 6 during relative motion therebetween, and at least one of the parts 1, 5 supporting the tracks is made resiliently deformable in the regions of the inlet and outlet ends of the track supported thereby. The resiliency may be achieved by slots 8 extending in a plane parallel to the said track. In an alternative embodiment, two slots at each end of the upper bearing part extend in the longitudinal direction of the track and perpendicular thereto. The bearing may have recirculating rollers held in a resilient plastics cage.
Patent GB-646663-A (GB)
Title: Improvements in or relating to plug and socket electric couplings
IPC: H01R24/76
Filed: 1948-07-21
Abstract: 646,663. Two-part couplings. GENERAL ELECTRIC CO., Ltd., and FAIRWEATHER, D. W. July 21, 1948, No. 19541. [Class 38 (i)] A socket contact comprises a pair of opposing members shown as flat plates 1, 2, for receiving a rectangular plug pin between them, one carrying a terminal 4, and the plates being urged together by a C-shaped spring 9 but maintained a predetermined distance apart by stops 10, 11 to enable the plug pin to be inserted. The stops also serve as locating means for the contact, the plates clamping thereon and being freed on insertion of the pin, so that the socket may move to a limited extent laterally. Two sockets and an earth socket 12 are held in the base by an apertured face-plate (not shown) and are separated by barriers 13. The plate 1 may be shaped as a wide U-piece, the two arms embracing stops on the base which serve as locating means, and the arms as stops. Alternatively the plate 1 may be L-shaped, the shorter limb serving as a stop, Fig. 3 (not shown).
Patent GB-694309-A (GB)
Title: Improvements in pocket vaporizers
IPC: B05B11/06
Filed: 1949-07-25
Abstract: 694,309. Spray-producers. S.O.C.O.F.I.G. July 25, 1949, No. 19546/49. Class 69(iii) A pocket atomizer has liquid and piston pumping chambers A and B respectively, and a lid member 2, pivoted at 18, engages a groove 1<SP>1</SP> in a spring biased pivoted lid member 1 to close the liquid outlet of a tube 19, and to lock the piston 7 in a closed position. A pin 21 closes the liquid outlet, and the piston is locked by a stop 11 acting on a spring-loaded plunger 13 engaging an annular groove 10 in the piston rod 4. When unlocked the piston is forced outwardly to the limit of its travel by a spring 8.
Patent GB-965644-A (GB)
Title: Improvements in or relating to self-service dispensing apparatus for liquids
IPC: B67D7/10
Filed: 1963-05-16
Abstract: 965,644. Dispensing liquids. SCHEIDT & BACHMANN G.m.b.H. May 16, 1963 [May 16, 1962], No. 19554/63. Heading A4T. In a self-service apparatus dispensing liquids, e.g. fuel, a customer inserts a key, which may be unreleasably connected to the vehicle ignition key so that the apparatus must be turned off before the vehicle is started, at one of holes S1-Sn which closes one switch a1-an of a corresponding register Z1-Zn to connect the register at 3, 4 to an electric signal generator associated with the liquid flow meter. Normally current flowing through line 6 and choked relay H holds switch h open, charges relay time delay capacitor C but is insufficient to operate the pump switch Zch. The key also closes the corresponding one of switches C1-Cn and opens the corresponding pair of switches b1-bn and d1-dn, the switches a, b, c and d being mechanically coupled. On opening say d1 relay H is de-energized and allows switch h to close whereby current flows via h, 5, f1, closed switches C1, d2, d3, dn and starts the pumps by switch Zch. The presence of relay H and capacitor C prevents the pump delivering if two keys are turned and also prevents obtaining of petrol by turning the key on and off in time with the signals to a register and preventing the register from registering.
Patent GB-727972-A (GB)
Title: Device for use with a parallel hosiery knitting machine, driven by hand or by motor
IPC: D04B15/66
Filed: 1951-08-22
Abstract: 727,972. Knitting-machine. OFFICINE GALILEO SOC. PER AZIONI. Aug. 22, 1951 [Aug. 29, 1950], No. 19779/51. Class 74(2). At the front and rear respectively of a parallel machine is a shaft 24, 25 on each of which is mounted a pair of oscillating levers 30, 31, one end of each lever being so shaped as to bear against the side of the foot of a needle which is to be moved into the operative position in accordance with the dictates of a pattern drum, which effects the rotation of the spindle bearing a pair of the levers, in order so to move the needles against which the levers bear. The levers 30, 31 are urged along the shaft 24 or 25 towards the ends of the machine, by springs in drums 37, 38, or by a frictional device operated from a continuously running shaft, so that the side cheeks of the rebated free ends of the levers bear against the sides of the feet of the two needles next to be introduced. From time to time the shafts 24, 25 are oscillated, to cause the free ends of the levers 30, 31 to rock in and out and so first to insert the needles against which they bear and then to retire, when they are slid further along the shaft 24 or 25 to bear against the next pair of needles. The shafts 24, 25 are rocked by a lever 21, acting through levers 22, 23 and secured to the shaft 19 which is rotated through a predetermined angle, for this purpose, by an electric motor 20 controlled by a pattern drum 1. The drum 1 has on its surface a helical zone 2 bearing rows of holes 3. Into one hole of each row can be inserted a pin 4 which, when it comes under the end of a corresponding lever 13, 14 or 15, closes the associated contacts 18 and, according to the lever operated, inserts a pair of needles of the front or rear set, or stops the machine. The carriage 7 bearing the levers 13, 14, 15 is traversed along its guide 8 by engagement of a pin 10 in a helical groove 11 in the drum. The drum is stepped round by a device 5 operated by a member 6 in conformity with the strokes of the machine. Carriage end stops 45, 46 are displaced in opposite directions by the oppositely travelling runs of a continuous strip 50 passing over two pulleys, one, 51, of which is driven by a device 52 connected to the mechanism driving the pattern drums. The shafts 24, 25 may be constantly oscillated and the sleeves 26, 27, carrying the levers 30, 31, clutched thereto, by individual clutches, in accordance with pattern requirements.
Patent GB-650511-A (GB)
Title: Improved means for drying by a current of air
Inventor: PANISSETT DENIS SYDNEY
IPC: F26B9/06
Filed: 1948-07-24
Abstract: 650,511. Electric air heaters. SIMPLEX ELECTRIC CO., Ltd. July 24, 1948, No. 19846. [Class 39(iii)] [Also in Group VI] In an air heater for drying articles or parts of the person comprising a casing 10 containing an electric fan or impeller 16 propelling air over electric heaters 21 to one or more discharge openings 20, the casing having also one or more inlet ports 11 admitting unheated air over the fan motor 13 and another port or set of ports 25 to readmit some of the hot air from the openings 20 to be re-circulated by the fan, the effective area of the hot air re-admission ports 25 is adjustable. A manually rotated radially slotted disc 26 is mounted to overlap adjustably the radial ports 25 in a plate 24 in the casing. A bimetallic strip in the fresh air or hot air stream may be connected by a rod 30 to move the disc 26 to maintain the hot air temperature constant. The discharge openings 20 are diametrically opposite. The electric heaters 21 are described in Specification 650,512. According to the Provisional Specification, the area of the cold air inlet may be similarly adjusted, preferably by a coiled bimetallic strip. The valves for the hot and cold air may be interconnected so that as one opens, the other closes.
Patent GB-1392842-A (GB)
Title: Hot or cold pack and apparatus for and method of making same
IPC: B65B9/20
Filed: 1972-04-28
Abstract: 1392842 Packaging KAY LABORATORIES Inc 28 April 1972 19938/72 Heading B8C [Also in Division F4] A package comprises an outer container 31 enclosing a chemical 33 and a rupturable inner container 11 containing a blowable chemical 19 under pressure, the chemical 33 and the chemical 19 being such as to react, on intermixture, endo- or exothermically heat. The chemical 33 may be anhydrous calcium chloride exothermic, and for endothermic reactions, the chemical 33 is ammonium nitrate. The chemical 19 may be an aqueous solution of calcium chloride. The rupturable container 11 is formed from a longitudinally fold web 86 which is longitudinally sealed by a sealer 99 and transversely sealed by jaws 63, 65 carried on rotors 59, 61. The chemical 19 is fed from a reservoir 108 by a pump 110. The top seal of the inner container 11 is formed below the level of the chemical 19 in the tubed web 86, and the completed package falls on to a conveyer 121 and is carried into an outer container 31 formed from a web 129. The chemical 33 is fed on to the container 31 from a hopper 125 by a volumetric filling device 127. Jaws 141, 143, for transversely sealing the web 129 carry sponges 145 for compressing the chemical 33 in the container 31. The jaws 63, 65 are heated to a temperature sufficient to rupture the inner container 11, but are cooled by the chemical 19 during sealing. To prevent excessive cooling of the jaws, the chemical 19 is heated, e.g. by the addition of calcium chloride. The jaws 63, 65 are pivoted to the rotors and are biased by springs 73, 75 to an inclined position. During sealing, the jaws pivot against the springs and to prevent a complete package being struck by the jaws as they snap back to the inclined position, a pair of brackets 77, 79 are secured to the jaws. Legs 83 of these bracket abut to delay the pivoting to allow the completed package to drop.
Patent GB-499317-A (GB)
Title: Improvements in or relating to electric wave signalling systems
IPC: H04B1/62
Filed: 1937-07-21
Abstract: 499,317. Transmission systems; television. STANDARD TELEPHONES & CABLES, Ltd., HODGSON, K. G., and ROSEWAY, W. N. July 21, 1937, No. 20146. [Class 40 (iv)] [Also in Group XL] In a line transmission system using a wide band of frequencies, as for television, the level of the high frequencies is increased relatively to that of the low frequencies at the sending end and the relationship is restored at the receiving end by the use of inverse or conjugate networks, which are such that their combined effect produces no distortion of phase and attenuation. As shown, the signals (0-2 megacycles) modulate a carrier (7À5 mc.) in a modulator 2, and the lower side-band (5À5- 7À5 me.) is selected by a filter 4 and passes through the distorting network 5, which may be of the form shown in Fig. 2a. The signals then modulate a second carrier (5 mc.) in a modulator 6 and the lower side-band (0À5- 2À5 mc.) is selected. At the receiving end, the signals are applied to a demodulator 12 (5 mc.) and the upper side-band (5À5-7À5 mc.) is selected by a filter 14 and passes through the restoring network 15, which may be of the form shown in Fig. 2b. The signals are then rectified and the lower side-band is selected.
Patent GB-483545-A (GB)
Title: Improvements in or relating to electrical oscillation generator arrangements
IPC: H03K12/00
Filed: 1936-07-21
Abstract: 483,545. Valve generating circuits; television. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and FEWINGS, D. J. July 21, 1936, No. 20201. [Classes 39 (i), 40 (iii), and 40 (v)] Short impulses for the control of a sawtooth oscillator are produced by applying oscillations to deflect the electron beam of a cathode-ray tube so that it passes from one collector electrode to another. As shown, oscillations from a dynatron 1 or other source are applied to the deflecting-plates 4, 5 of a cathode-ray tube or electron-beam valve 6. A linear cathode 7 emits a plane electron beam through a slot in the control electrode 8 which beam is deflected to and fro across one or more parallel slots in a collector electrode 9. A second collector electrode 10 lies behind the slot. Sharp current pulses are thus produced through the resistance 8, and the resulting voltage pulses on the electrode 9, or on the electrode 10, are applied as positive tripping- impulses to the grid of a discharge tube 17 forming part of a saw-tooth generator 15 of known type. In a modification the outer electrode 10 is larger than the electrode 9 the slot in which is omitted, the impulses being created at the limits of the swing of the electron beam as it leaves the smaller electrode 9 and strikes the overlapping portions of the larger electrode 10, Fig. 4 (not shown). The sawtooth waves may be amplified at 25 and applied to an oscillograph or television tube, and their frequency may be of the order of 200 kc. The oscillator 1 may be synchronized by any known method.
Patent GB-702567-A (GB)
Title: Apparatus for ultrasonic signalling
IPC: H04B11/00
Filed: 1951-08-27
Abstract: 702,567. Audible and like signalling apparatus. SAUNDERS-ROE, Ltd., and JACKSON, P. G. S. June 25, 1952 [Aug. 27, 1951], No. 20203/51. Drawings to Specification. Class 118 (2). Transmitter apparatus for signalling by the generation of ultrasonic pressure. waves comprises two identical magnetostrictive or piezoelectric transducers and means for feeding frequency modulated ultrasonic electric oscillations to said transducers differentially so that one takes frequency swings upwards from fo to fo+ fd and the other takes frequency swings downwards from fo to fo-fd, fo being the carrier centre frequency and fd the deviation, said transducers being respectively tuned to frequencies fo+fa and fo-fa, fa being a frequency slightly less than fd. This overcomes the rather peaky response of transducers and provides a band-pass characteristic. Whilst the system is primarily intended for underwater communication it may also be used for transmitting signals through the atmosphere or solid bodies. The transducers may be associated with reflectors or concentrators to produce directional properties.
Patent GB-269384-A (GB)
Title: A process of preparing fats of a plastic and pliable consistency
IPC: A23D9/007
Filed: 1926-08-17
Abstract: 269,384. Erslev, K. Aug. 17, 1926. Fats.-Plastic and pliable fats are obtained from naturally occurring hard and brittle fats. such as coco nut oil and palm kernel fat, by adding to the latter one half per cent or more of a gummy plastifying substance, such as unvulcanized rubber, rubber latex, chicle, kauri gum, or gum elastic. A solution of the plastifying substances, e.g. in ether or carbon-di-sulphide, may be added to the molten fat, the solvent being subsequently distilled off ; or the plastifying substance may be added directly to the fat, and the mixture be allowed to stand a heated gas or vapour, preferably of an inert nature, being simul. taneously or subsequently passed through the mass.
Patent GB-671289-A (GB)
Title: Improvements in chuck adjusting device
IPC: B23B31/36
Filed: 1950-08-15
Abstract: 671,289. Mounting chucks. WAHNISH, G. I. Aug. 15, 1950, No. 20259/50. Class 83 (iii). Means for centring a chuck with respect to a spindle 1 comprise a back-plate 3 rotatable with the spindle and provided with apertures 16 for receiving, with clearance, the shanks of screws 7 which secure the back-plate to the chuck, the back-plate also being provided with radial passages 17 for receiving, also with clearance, adjusting screws 18 which each screw into a transverse aperture in the screw 7, each passage 17 being formed with a hemispherical seat 20 for receiving the half-round head 19 on the screw 18, so that the latter is capable of tilting movement.
Patent GB-1162574-A (GB)
Title: Process for the manufacture of Copolymers of Vinyl Chloride
IPC: C08F214/06
Filed: 1967-05-02
Abstract: 1,162,574. Preparing vinyl chloride copolymers. WACKER-CHEMIE G.m.b.H. 2 May, 1967 [17 May, 1966], No. 20263/67. Heading C3P. Vinyl chloride copolymers are obtained by the suspension polymerization of vinyl chloride with another olefinically unsaturated monomer in aqueous dispersion with the use of monomersoluble catalysts and a protective colloid comprising a water-soluble salt of a copolymer made from (1) maleic acid or anhydride, (2) a compound of formula CH 2 =CH-X-C n H 2n+1  where X is -0-, -0-C- or -C-O, and # # O O n is 4 or more, and (3) a compound of formula CH 2  =CH-R, in which R is a phenyl, -OC m  H 2m+1  or -O-C-C m H 2+  m1 group, in which # 0 m is 1, 2 or 3. The copolymers yield clear solutions in lacquer solvents. In the example, the protective colloid is obtained by copolymerizing vinyl acetate, maleic anhydride or maleic acid, and vinyl laurate, vinyl pivalate, or the vinyl ester of a mixture of saturated aliphatic carboxylic acids branched in the α- position and containing 9 to 11 carbon atoms in benzene in the presence of isopropyl peroxide dicarbonate, and forming the ammonium salt thereof by addition of ammonia. The protective colloids are then employed for the copolymerization of vinyl chloride and vinyl acetate in aqueous dispersion in the presence of dilauroyl peroxide.
Patent GB-597016-A (GB)
Title: Improvements in and relating to the manufacture of butadiene
IPC: C07C1/24
Filed: 1945-08-08
Abstract: Butadiene-1 : 3 is obtained by heating to 350-600 DEG  C. a mixture of vapours containing chloro-butanol-2 : 3 or butylene glycol-2 : 3 and acetic acid or acetic anhydride.  Inert diluents such as nitrogen, carbon dioxide or gaseous hydrocarbons may be used. Dehydration catalysts or catalysts having a large active surface such as silica gel, kaolin, colloidal clays and active carbon are also preferably employed.  In the examples, mixtures of butylene glycol-2 : 3 and acetic anhydride, butylene glycol-2 : 3 and glacial acetic acid and chloro-butanol-2 : 3 and acetic anhydride are passed over kaolin, silica gel and a mixture of colloidal clay and active carbon respectively giving butadiene.
Patent GB-804480-A (GB)
Title: Improvements in or relating to steroids
IPC: C07J71/00
Filed: 1956-07-02
Abstract: The invention comprises 22a(25D)-spirost-1,4-diene-3-one of the formula <FORM:0804480/IV (b)/1> and the preparation thereof by reacting a solution of ruscogenin in an inert solvent at an elevated temperature with a hydrogen accepter of high oxidation potential selected from ketones and quinones in the presence of a catalyst consisting of a metallic alcoholate or phenate.  The above process may be modified in that the hydroxyl group in the 1-position of ruscogenin is blocked with an ester group, e.g. by reaction with an acid anhydride or chloride such as acetic anhydride, the ester is reacted with the hydrogen accepter to form the ester of 1-hydroxy - 22a(25D) - spirost - 4 - en - 3 - one and this compound is reacted with an alcoholic solution of an alkali metal hydroxide at an elevated temperature.  The reaction in the inert solvent may be effected at or in the neighbourhood of the boiling temperature of the reaction mixture.  Suitable inert solvents are aromatic hydrocarbons such as benzene, toluene and xylene.  Suitable hydrogen accepters are acetone, cyclohexanone and p-benzoquinone.  Suitable catalysts are aluminium t-butylate, isopropylate and phenate.  Detailed examples are given in which also the 2,4-dinitrophenylhydrazone of 22a(25D)-spirost - 1,4 - diene - 3 - one and the diacetyl and 3-acetyl derivatives of ruscogenin are prepared.
Patent GB-1437455-A (GB)
Title: Spring compression tools
IPC: B25B5/14
Filed: 1973-04-30
Abstract: 1437455 Spring compression tools GIRLING Ltd 18 April 1974 [30 April 1973] 20533/73 Heading B4W  A spring compression tool (Fig. 1) for use in compressing the spring assembly of a brake (Fig. 2) comprises an elongate member 1 with a nut 2 threaded on the member 1, an abutment plate 3 mounted for rotation relative to both the nut and member 1 and means, e.g. threaded end portion 1a for connecting the member 1, after removal of a bolt 16, to a part 15 of the spring assembly. In use the plate 3 abuts against the housing 10 of the brake and rotation of the nut effects compression of the spring to allow, e.g. removal of the hydraulic operating mechanism 18 for servicing. In an alternative embodiment (Figs. 3, 4, not shown) the abutment plate is not mounted on the nut and has two bolt holes for reception of bolts to hold the spring assembly in the compressed condition so that the elongate member 1 and operating nut 2 can be removed, e.g. for use with another abutment plate.
Patent GB-516831-A (GB)
Title: Improved method and apparatus for refining or cleaning oils
IPC: B01D25/02
Filed: 1938-07-11
Abstract: 516,831. Filters. SCHLEGEL, A. July 11, 1938, No. 20563. Convention date, July 10, 1937. [Class 46] [Also in Group III] A demountable filter element 2 for oil consists of coaxially spaced large discs 4 and small discs 5, arranged alternately, of a porous material such as felt or pressed cellular material. The discs are mounted on a pipe 6 having grooves 7 and openings 8. The oil passes through the discs to the tube 6. The discs are cleared by rotating the filter element against a comb 9 having inwardly projecting scrapers 21 bevelled at the edges.
Patent GB-695807-A (GB)
Title: Improvements in and relating to the production of dihydroxy-aromatic compounds
Inventor: WRIGHT RONALD BARRIE
IPC: C07C37/02
Filed: 1950-08-21
Abstract: o-Dihydroxy aromatic compounds are made by treating the corresponding o-dihalogeno compounds (not fluoro) in the presence of water and absence of oxygen, in a vessel made of or surfaced or lined with copper, with at least 2 mols. of barium hydroxide or with at least 1 mol. of a soluble barium salt and sufficient alkali metal hydroxide to unite with all the acid radicals present; the reaction takes place at 200-250 DEG  C. at a pressure of at least 50 atmospheres gauge, preferably 100 atmospheres.  A copper catalyst such as cuprous oxide may also be present, e.g. up to 1 per cent by weight of the halogen compound.  Preferably 2.5-3 mols. of barium hydroxide are used and the initial alkali strength is 2.0-3.5 N.  The reactants are kept in the liquid phase by applying an initial pressure of nitrogen.  The product is isolated by acidification with an aqueous mineral acid, extraction with an organic solvent (e.g. ether) and removal of the latter by distillation.  Examples are given of the production of catechol from o-dichlorobenzene.  Specification 425,230 is referred to. According to the Provisional Specification an enamel-lined vessel may be used for the reaction.