baber/WOPTO huggingface dataset:
Patent GB-1450205-A (GB)
Title: Antioxidants
IPC: C08G8/04
Filed: 1974-03-07
Abstract: 1450205 Phenolic resin antioxidants COALITE & CHEMICAL PRODUCTS Ltd 11 Nov 1974 [9 Nov 1973 7 March 1974] 52160/73 and 10305/74 Headings C3R and C3P [Also in Division C2] A phenolic resin antioxidant is the condensation product of (1) one or more mercaptoaldehydes, i.e. an alkyl aldehyde containing a sulphur link in the alkyl chain, and (2) one or more of hydroxy benzene or a phenol which is substituted in at least one position ortho or para to the phenolic OH group and which is unsubstituted in at least one position ortho or para to the phenolic OH group said phenols being unsubstituted in the positions meta to the phenolic hydroxyl group. The term resin includes a bisphenol. The phenol and mercaptoaldehyde are suitably reacted in a phenol/ aldehyde molar ratio of from 0À5 : 1 to 8 : 1 at a temperature of from - 30‹ to + 150‹ C. for 1-24 hours optionally in the presence of a solvent and preferably in the presence of a mercaptan catalyst and HCl cocatalyst. The mercaptoaldehyde preferably has the formula where R 1  denotes hydrogen or a C 1 -C 4  alkyl group and R is a C 1 -C 17  alkyl group. Preferred resins having the general formula in which the chain linkage between the phenolic nuclei is by ortho or para substitution, the other ortho and/or para position(s) being occupied by R 5  and/or R 6  where R 5  and R 6  are hydrogen, halogen or aliphatic or cycloaliphatic hydrocarbyl groups containing not more than 8 carbon atoms and y is zero or a positive integer of at least 1, e.g. 1-5. Preferred phenols used are monosubstituted phenols, e.g. o-cresol, oallylphenol, o- or p-chlorophenol, o-t-butylphenol, o-cyclohexylphenol. Other phenols include p-chloro-o-cresol, p-methyl-o-ethylphenol and o,p-dimethylphenol. The sulphurcontaining resin may be added to an organic substance in an amount sufficient to have an antioxidant effect which is generally 0À05-10% wt. of the composition. Suitable organic substances are liquid or solid hydrocarbons, e.g. a mineral or synthetic lubricating oil, or a polymer, e.g. a polyolefin or a natural or synthetic rubber; or a hot melt adhesive. The resin may also function as a melt stabilizer during the processing of a polymer, e.g. a polyolefin. In the examples resins are prepared by condensing any one of the following phenols: o-cresol, oallylphenol and p-chlorophenol, with any one of the following aldehydes: #-laurylmercaptobutyraldehyde, # - ethylmercaptopropionaldehyde, # - n - butylmercaptoprionaldehyde and #-isobutylmercaptopropionaldehyde in the presence of ethylmercaptan and HCl as catalyst.
Patent GB-458724-A (GB)
Title: Improvements in means for printing on match-boxes and other box-like structures
IPC: B41F17/26
Filed: 1935-11-18
Abstract: 458,724. Printing -machines. WOLF, J., 22, Lipotk÷rut, Budapest. Nov. 18, 1935, No. 10409/36. Divided out of 459,969. [Class 100 (ii)] A machine which is especially applicable for printing on the usual friction surfaces on the narrow sides of match-boxes, but which can be adapted for printing on the broad sides, or on other box-like objects, is formed with conveying devices for carrying the boxes through the printing-rollers. These preferably comprise rollers 33,' 34, Fig. 2, fitted with rubber printing-surfaces, each roller forming the impression roller for the other printing-roller, and inking devices 35, 36 of known form are provided. The boxes 2, which preferably come from a machine for producing the friction surfaces on the narrow sides, pass along a channel 1, preferably by the aid of a conveyer 64, Fig. 5, and the boxes are fed in turn by an abutment 37, Fig. 1, on a band 23 which is moved intermittently in opposite directions by means of an oscillating sector 22 operated by a lever 15 and cams 13<1> on the driving-shaft 5, an extension spring 25 serving to move the band 23 in one direction. The stop 37 moves the end box 2 into the grip of conveyer bands 12, 27 which carry the box through the printing-couple, or through couples for multicolour printing. Finally a roller 29 presses the printed box into a channel 30 and the boxes are advanced by conveying bands 31, 32 and led to a packing device or to a machine for completing the manufacture of the box. In the modified form, Fig. 5, the boxes are fed from the channel 1 by means of a reciprocating pusher 58 actuated by a lever 52 oscillated by a rotating disc 49 formed with an eccentric slot 50 which engages a roller 51 carried by the lever 52.
Patent GB-1139726-A (GB)
Title: Footwear polishing machine
IPC: A43D95/06
Filed: 1967-03-06
Abstract: 1,139,726. Shoe polishing machine. A. GALVAGNO. 6 March, 1967 [7 March, 1966; 7 Oct., 1966], No. 10413/67. Heading A4F. A shoe polishing machine comprises a frame 1 having an inclined sole 2 which forms a footrest and two rotatable brushes 5, 6, the brush 6 having a lower cylindrical portion 6a with radially extending bristles and an upper portion 6b with downwardly extending bristles. An electric motor 11 drives the brushes via pulleys 7, 8 and a belt 9. Sprinklers 13<SP>1</SP>, 13<SP>11</SP> supply the brushes with wax. In a modification three brushes are used, each brush being supplied with wax from a sprinkler or from a sponge. Each sponge is held against its brush by a handle and is fed with wax from a drip feed.
Patent GB-274559-A (GB)
Title: Improvements relating to electric switches
IPC: H01H9/38
Filed: 1926-04-21
Abstract: 274,559. Wall, G., and Metropolitan- Vickers Electrical Co., Ltd. April 21, 1926. Addition to 253,242. Contacts; switches, quick-action.-The arm 3, of the switch mechanism of the parent Specification, which arm has imparted to it quick semirotations in the same direction to give the " on " and " off " position, instead of carrying the movable contacts, acts upon a pair of leaf springs 104,105 which carry the contacts 102, 103. The contacts are curved at their tips so that as the arm 3 moves to the " on " position, the springs are bent as a whole about their support 110 until the tips of the contacts engage the fixed contacts 100, 101, whereafter the springs are flexed and the movable contacts have a rolling motion over the fixed contacts, finally assuming the position shown in the Figure. Further movement of the arm 3 to the " off " position causes the springs and contacts to be subjected to the reverse movements. The contacts 102, 103 are attached to their own springs and are joined by a flexible conductor.
Patent GB-610288-A (GB)
Title: Television scanning systems
IPC: H04N5/228
Filed: 1946-04-05
Abstract: 610,288. Television. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. April 5, 1946, No. 10594. Convention date, Jan. 9, 1945. [Class 40 (iii)] [Also in Group XL (a)] In a television system employing a camera tube of the type in which an electrostatic image of an optical image is scanned by a beam of low velocity electrons; means are provided for developing a potential having a valve dependent on the average overall brilliance of the optical image and for applying said potential to vary proportionally the intensity of said scanning beam. As shown in the drawing a positive electrostatic image of an object 14 formed on a mosaic electrode 18 by secondary electron emission, produced by primary photo-electrons from photo-cathode 12 on which an optical image of 14 is formed, is scanned by a low-velocity cathode-ray beam from cathode 22 to produce picture signals by subtraction at the output V.O. of the electronmultiplier 26. To ensure that the beam is fully modulated for all conditions of illumination of the object the secondary electrons released by 18 are collected by a screen 20 to produce across condenser 32 a control potential which, after amplification in a linear amplifier 36, is applied as a bias to vary the standing negative bias on the grid 24 of the camera tube 10, and therefore the intensity of the electron beam, in accordance with the average brilliance of 14. This arrangement is stated to give an improved signal to noise ratio in the picture signal output. Negative blanking pulses applied at point 48 reduce the video output to the black level during retrace of the scanning beam and cause all electrons in the beam to be repelled from the mosaic and returned towards the gun end of the tube. Specification 613,003, [Group XL (a)], is referred to.
Patent GB-831006-A (GB)
Title: Iron oxide reduction
IPC: C22B1/24
Filed: 1957-04-02
Abstract: 831,006. Reduction of iron oxides. FREEMAN, H. April 2, 1957 [April 4, 1956], No. 10672/57. Addition to 768,018. Class 72  A process for the reduction of iron oxide according to the parent Specification comprises mixing porous iron oxide pellets with a reducing agent comprising calcium carbonate in excess of 10% and up to 40% by weight of the pellets and a solid carbonaceous material capable of reducing carbon dioxide to carbon monoxide in sufficient amount to reduce all the carbon dioxide liberated by decomposition of the calcium carbonate as well as a major portion of that produced in the reduction of iron oxide to carbon monoxide but less than that required to effect complete reduction of the iron oxide if the carbonaceous material itself were the primary source of carbon monoxide. As shown, the oxide is ground in a ball mill 10, pelleted in a pelletizer 13, dried and hardened in a roaster 115, and fed to a hopper 18 where it is mixed with limestone and coke, anthracite or bituminous coal which have been ground in a ball mill 16. The mixture from the hopper 18 is fed to a rotary furnace 20, having an oil or gas burner 21, along with a controlled amount of air. The temperature at the feed end of the furnace is raised to 900-1050‹C., the limestone being decomposed to calcium oxide and carbon dioxide, the latter being immediately reduced to carbon monoxide which reduces the iron oxide to metal. The iron pellets along with lime and unused coke are discharged to a cooling conveyer 25, through a cyclone separator 31 where the pellets are freed from the other materials which latter may be treated in a further separator 36 and the products used in the manufacture of cement. The charge in the furnace 20 may have an atmosphere of 100% CO and the atmosphere above the charge may be a mixture of CO and CO 2  in the ratio CO/CO 2  above 2 : 1. The apparent density of the pellets may be controlled by the composition of the binder used from very light pellets to fairly dense pellets.
Patent GB-1246249-A (GB)
Title: Container for a magnetic disk pack
IPC: G11B23/03
Filed: 1970-03-06
Abstract: 1,246,249. Containers for magnetic discs. INTERNATIONAL BUSINESS MACHINES CORP. 6 March, 1970 [3 April, 1969], No. 10752/70. Heading B8P. A container for magnetic discs 10 may be moulded from a polycarbonate and comprises a central hub 12, a base member 20, and a cover 18, the base 20 has an inner portion 23 and an outer portion 27, the inner portion.being more effective to cushion shocks to the base 20 by reason of a flexure portion 22 and the outer portion being effective to cushion shock loads transmitted by a bumper ring 30. The discs are supported by spacers 11 and a protective disc 14 is provided above the base. A dust-proof seal 31 is incorporated in the bumper ring. The base has a foot 25, and is stiffened by ribs 24. There is a gap at 33 to allow the base to flex before it engages the hub 12.
Patent GB-1488049-A (GB)
Title: Dampening system on an offset printing press with a device for regulating the amount of water on the plate
IPC: B41F7/24
Filed: 1975-03-14
Abstract: 1488049 Measuring moisture content GRAPHO METRONIC GmbH & CO and ROLAND OFFSETMASCHINENFABRIK FABER & SCHLEICHER AG 14 March 1975 [14 March 1974] 10760/75 Heading G1A [Also in Division B6] An offset printing press with a dampening system includes means for regulating the amount of water on the printing plate 2 wherein measuring and reference mono-chromatic light pulses are alternately directed on to the same spot on the plate surface 14 and the light emitted therefrom is received by photo-cell 17, the wavelength of the measuring light pulses being such that they are highly absorbed by the water but lies outside the absorption maxima, and the wavelength of the reference light pulses being such that they are poorly absorbed by the water. The pulse frequency of the light pulses lies in the optimum frequency range of the photo-cell 17 and the wavelength of the reference light pulses lies in one of the following ranges; 2À2 to 2À4 Ám, 3À4 to 3À7 Ám, 5À4 to 5À6 Ám, 6À4 to 6À6 Ám. In the device 10 shown in Fig. 2 light from the source 11 passes through lens 13, filter wheel 12 driven by motor 18, and light tunnel 15 which is at 20 degrees to a further light tunnel 16. The filter wheel 12 contains a filter 19 producing measuring light pulses of wavelengths 2À7 Ám and filter 20 producing reference light pulses of wavelength 2À2 Ám. The interior surfaces of tunnels 15, 16 are reflective apart from a zone (25) Fig. 5 (not shown) which is blackened to avoid adverse reflection of light direct from the light source to the photo-cell. The tunnels may be replaced by infrared light guides, and an infrared light guide included between the light source and the filter wheel. The device 10 is used to control the speed of a motor (9) Fig. 1 (not shown) driving a fountain roller (5) in a container (6) of dampening liquid which liquid is transferred by an intermediate roller (7) to a form roller (8) and thence to the printing plate (2) on cylinder (1).
Patent GB-1360702-A (GB)
Title: Hcf exhaust silencer for internal combustion engines
IPC: F01N13/00
Filed: 1972-03-08
Abstract: 1360702 I C engine exhaust silencers DR ING hcF PORSCHE A G 8 March 1972 [12 March 1971] 10824/72 Heading F1B The silencer 1 has outlet pipes 6, 8a and 9a and the exhaust gases entering can flow directly to the pipes 8a and 9a and via the silencing chambers 4 to the pipe 6. To provide maximum silencing the outlets of the pipes 8a and 9a are closed by covers 13 with clamping bands 18 and to provide minimum back pressure the covers are removed. The covers 13 have bayonet connections (16, 17), Figs. 3 and 4 (not shown), with the pipes 8a and 9a.
Patent GB-551667-A (GB)
Title: Improved driving means for an electric generator
IPC: F01D17/20
Filed: 1941-08-27
Abstract: 551,667. Cooling and driving dynamos. POBJOY, D. R. Aug. 27, 1941, No. 10954. [Class 35] [Also in Group XXVI] A generator 26, Fig. 1, on an aircraft is driven by a turbine wheel 17 provided with outer blades 19 acted on by engine exliaust gases, and with inner blades 20 which draw cooling air round and through the generator. Exhaust gases from pipe 10, mixed with an air stream from forward facing pipe 11, are delivered to chamber 12 whence they are directed through nozzles 15 onto blades 19 to drive the generator. The used gases pass into annular or volute chamber 23 and outlet pipe 25. The inner blades 20 draw air through vent 28 and pass it through pipe 22 to outlet pipe 25. The generator 26 is insulated from the chamber 28 by a narrow space 27. When the generator reaches the desired speed a centrifugal governor 30 opens flaps 33 in the chamber 12 and byepasses a portion of the exhaust gases direct to the outlet pipe. A modified method of speed control is shown in Fig. 4, in which on increase of speed the governor 50 moves the turbine wheel 34 away from the nozzles 16 in volute chamber 12. Governor 50 has three balls 54 moving in radial grooves 53 in a plate 52 splined to the generator shaft 51. Under centrifugal force these press against a conical portion 55 and move the shaft 38 to the left, against the action of spring 56.
Patent GB-254272-A (GB)
Title: Improvements in the knife-brushers for drum root-cutters
IPC: B26D7/18
Filed: 1926-04-26
Abstract: 254,272. Soc. Nouvelle des Etablissements A. Maguin. June 25, 1925, [Convention date]. Cutting and slicing vegetables.-To clean the knives of a drum root-cutter a brush 1, 2 secured to a rotary shaft 3 by bronze rings 4, 5, is adapted to be moved into a position in which it engages the knives, means also being provided to adjust the position of the brush as the bristles wear. The shaft 3, which is driven by a pulley 7 is mounted in two eccentric bushes 8, 9, the one within the other, in a support 10 and secured to the side frame of the machine. The bush 8 is provided with a control handle 12 the inner end of which forms a set pin adapted to engage in any one of a series of notches in the inner bush or sleeve 9. When the handle is screwed into one of these notches both brushes can be moved together to bring the brush into or out of engagement with the knives. Indicating notches and lines are arranged on the bush 8 and the fixed part of the support to show the position of the brushes. A locking screw 16 holds the bushes in adjusted position. When the bristles become worn the sleeve 9 is turned relatively to the bush 8 by a key. The brush engages the knives on the inner side.
Patent GB-1469654-A (GB)
Title: Scr pulse generator and commutation circuit therefor
IPC: H02M1/06
Filed: 1974-03-12
Abstract: 1469654 Controlling burners WEBSTER ELECTRIC CO Inc 12 March 1974 [13 April 1973] 11027/74 Heading F4T [Also in Division H3] The Specification describes a pulse generator (see Division H3) producing an ignition spark between electrodes 38, 40 which may be located in a known manner in ignition relation to an oil burner such as described in U.S.A. Specification 3,556,706. A capacitor 18 is charged from a A.C. supply 24, 26 or a D.C. supply via 34, 30 and 32 and is periodically discharged by an SCR 20 into an inductive load 16 to produce the spark at 38, 40. The SCR is turned off by a commutation circuit 22 including a diode 54 and an inductance 56. The SCR is periodically turned on by a firing circuit 48, 50, 52 or alternatively by an oscillator.
Patent GB-209354-A (GB)
Title: Improvements in percussive tools
IPC: B25D11/06
Filed: 1923-04-24
Abstract: 209,354. Burgess, S., (Tekniske Fors÷gsaktieselskab). April 24, 1923. Percussive tools.-In a tool of the kind in which a hammer member is reciprocated by the centrifugal effect of rotating masses mounted upon it, the rotation of these masses is also made use of to rotate the hammer on its axis, and therefrom the casing and the tool as a whole. The masses o<1>, o<2> are for this purpose mounted on a spindle k which slides in slots in the casing wall, which is given an oscillation about its axis. In a modified arrangement adapted to effect continuous step-by-step rotation, ribs x replace the slots, and the return spring f is mounted so as to yield to torsion also. The motor m is in this case mounted so as to remain stationary with the handle. In the form shown in Fig. 10, the stepby-step rotation is transmitted directly to the tool-holder q by means of lugs y on the hammer shank. The holder q is connected to the casing by a diaphragm r made. of leather impervious. to oil and shaped so as to yield to torsion.
Patent GB-436840-A (GB)
Title: A process for the catalytic oxidation of unsaturated alcohols
Filed: 1935-04-10
Abstract: Unsaturated aldehydes and ketones are formed by reacting primary and secondary alcohols, having at least four carbon atoms in the molecule and only one olefinic linkage, with oxygen in the presence of oxidizing catalysts at elevated temperature, preferably about 300--550 DEG  C.  The alcohols treated may contain the grouping <FORM:0436840/IV/1> or <FORM:0436840/IV/2> , the free bonds being taken up by hydrogen, alkyl, alkoxy, carbocyclic, heterocyclic, aralkyl or aralkoxy groups.  They include homologues of allyl alcohol, furfuryl alcohol, allylene type alcohols, and polyhydric alcohols such as <FORM:0436840/IV/3> The catalysts may be an element, alloy or compound of a metal or metalloid which is a known oxidizing catalyst.  Particularly suitable are elements of the third period of the periodic table, e.g. Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, and Se.  The catalyst may be activated in known manner.  Activated copper and silver can have their activity restored by amalgamating the surface and heating to drive off the mercury.  Reaction is usually effected in the vapour phase, the alcohol and excess air or oxygen being passed over the catalyst and the product fractionated. Pressure may in general be slightly above atmospheric.  Heat exchangers may be employed to control the temperature.  A constant boiling substance may surround or be introduced into the reaction zone. The exothermic reaction may be conducted in conjunction with an endothermic one, such as a dehydrogenation.  According to examples: <FORM:0436840/IV/4> and air are passed over activated copper, made by reducing copper wire in hydrogen, in a "Pyrex" (Registered Trade Mark) tube at about 400 DEG  C. to yield <FORM:0436840/IV/5> ; <FORM:0436840/IV/6> similarly yielded an aldehyde, probably <FORM:0436840/IV/7> , at 300 DEG  C.; (3) silver wire screen is dipped in mercury, allowed to stand for 36 hours, heated to about 600 DEG  C. in a stainless steel tube in a stream of air to drive off the mercury, and then used as catalyst at about 450 DEG  C. for the reaction of example (1); (4) copper gauze at 350 DEG  C. catalyses the oxidation of <FORM:0436840/IV/8> vapour and air to <FORM:0436840/IV/9> ; <FORM:0436840/IV/100> is oxidized to the corresponding ketone, in presence of vanadyl sulphate supported on silica gel, at about 410 DEG  C.; (6) cinnamic aldehyde is produced from the alcohol using a nickel gauze catalyst at 450 DEG  C.; (7) the reaction of (1) is effected in a KA2 steel tube at 300 DEG C.ALSO:Activated copper and silver, used for catalysing the oxidation of alcohols to aldehydes and ketones, have their activity restored by amalgamating the surface and heating to drive off the mercury. In an example silver wire screen is dipped in mercury, allowed to stand for 36 hrs., and heated in a stream of air to about 600 DEG  C.
Patent GB-565265-A (GB)
Title: Improvements in filters for freeing air from noxious gases or dust
IPC: B01D46/52
Filed: 1943-07-09
Abstract: 565,265. Air filters. SIGMUND PUMPS (GREAT BRITAIN), Ltd., and LASZLO, A. July 9, 1943, No. 11194. [Class 8 (ii)] An air filter consists of concentric rings 2 of paper &c. between end pieces 4, 8, the air entering and leaving by holes or circular slots 6, 9 on opposite sides of each ring. The rings may be conical or cylindrical. Their ends are sealed in grooves by latex &c. in the end pieces which may be respectively a tray with a flange; and a cover for the tray. The rings may be cut on a grooved former. The filter may be formed with rings of depth increasing towards the middle.
Patent GB-202676-A (GB)
Title: Improvements in and relating to show case fittings
IPC: A47F3/12
Filed: 1922-04-21
Abstract: 202,676. Pledge, G. H. April 21, 1922. Barrel hinges. - In a show-case fitting of the kind described in Specification 16749/13, an extension d is formed at right-angles to and integral with the slidable plate a and the barrel socket e forming part of the hinge g. The member d is for the purpose of giving a clearance between the barrel e and the plate a slidable along a fixed guide member, when the hinge members are rotated through 90‹ from one operative position to another.