baber/WOPTO huggingface dataset:
Patent GB-951175-A (GB)
Title: Improvements in high-energy impact machine
IPC: B21J7/34
Filed: 1962-08-16
Abstract: 951,175. Power hammers. U.S. INDUSTRIES Inc. Aug. 16, 1962 [April 19, 1962], No. 31457/62. Addition to 921,910. Heading B3H. A high energy impact machine for forming metal comprises a pair of heavy plates 204, 206 which are accelerated towards each other by the sudden release of stored pressurized gas. The plates carry co-operating dies 260, 270. Secured to the upper plate 204 is a cylinder 210 housing a piston 214 on a hollow stem 216 secured to the lower plate 206. A second piston 230 in cylinder 210 is connected by hollow rod 232 to a guide piston 233 in cylinder 234. In operation high pressure nitrogen gas from supply source 300, Fig. 2, is admitted through valve 314, conduit 226 and hollow stem 216 into cylinder 210. The gas is also admitted through valve 318 to a lower cushioning cylinder 250 containing a piston 244 with rods 246, Fig. 1, engaging the lower plate 206. Hydraulic fluid is then supplied by pump 330 through solenoid-actuated control valves SV3, SV1, conduit 238 and hollow rod 232 to the upper side of piston 230 moving it downwards to compress the gas and force it through bleed passage 220 into pressure chamber 208. Finally piston 230 engages piston 214 to press it against a seat 218, and the slight downward movement of plate 206 closes limit switch 290 which shuts off the hydraulic supply and operates an indicator light W, Fig. 8 (not shown), to show that the machine is charged. To initiate a working stroke, a push switch PB17, Fig. 8 (not shown), is depressed which admits hydraulic fluid through solenoid-actuated valves SV4, SV2 into cylinder 242 to raise slightly the piston 244 with its rods 246, plate 206 and hence piston 214 off its seat 218. This suddenly releases the high pressure gas from chamber 208 which accelerates piston 214 and plate 206 upwardly and plate 204 downwardly to effect the working stroke. Thereafter the lower plate 206 is lowered by gravity and compressed gas in cylinder 210 and upper plate 204 is raised by compressed gas in a pair of counterbalance cylinders 282. To perform an " inching"  movement of the plates 204, 206 for setting the dies, hydraulic fluid is admitted to lower cylinder 242 and to the upper end of the counterbalance cylinders 282. Ejector pins 262, 272 for the dies are connected respectively to pistons 264, 274 biased outwardly by gas pressure and moved inwardly by hydraulic fluid. To regulate the force of the blow, a cylinder 292 is connected by a conduit 295 to the gas charging conduit 226 and contains a piston 293 whose position is adjustable by hydraulic fluid admitted to its top side through valve 299. When piston 293 is lowered extra gas is forced into the charging conduit 226 which increases the final pressure available for the blow. An electrical control circuit is described giving manual or automatic control of the charging by push-buttons or cam-actuated switches.
Patent GB-265343-A (GB)
Title: Improvements in or relating to mechanism for folding printed sheets
IPC: B65H45/12
Filed: 1925-12-14
Abstract: 265,343. Linotype & Machinery, Ltd., and Shuttleworth, J. Dec. 14, 1925. Folding paper.-In order to prevent set-off between freshly-printed surfaces of a sheet while it is being folded, the folding-rollers are built up of discs 1, 2, Fig. 1, the discs 1 being shaped so as to grip the sheet at the fold only, and the discs 2 being situated at the ends of the disc 1 and adapted to grip the sheet along its side margins. The discs 1 are provided with sheet-gripping surfaces 3, Fig. 2, extending over only a small portion of the circumference, while the sheet-gripping surfaces 4 of the discs 2 extend over the whole circumference. One of the rollers may be formed wholly of discs 2. For dealing with differently printed and different size sheets, the discs 1 and 2 are adjustable along the roller shaft 5 by means of set-screws 7, and the discs 2 are made in two semicircular parts clamped together by screws 8 so that they can be placed between a pair of discs 1 if desired.
Patent GB-473513-A (GB)
Title: Improvements in or relating to silicate surface coatings
IPC: B05D7/26
Filed: 1936-11-18
Abstract: A surface coating comprises a silicate underlayer covered with a layer consisting wholly of, or containing a preponderating proportion of, a synthetic resin or resins unaffected by the silicate underlayer.  Suitable synthetic resins are polymerization products of vinyl acetate or of acrylic esters, or mixtures of these, and smaller quantities of natural or of other synthetic resins may be added.  A vegetable oil may be present in either coating to improve adhesion between the two coatings.  A final coating of oil paint, varnish or enamel may be applied.  According to an example, a surface is coated with a pigmented solution of sodium silicate and, after drying, there is applied a 20 per cent solution of an acrylic ester resin in xylol, to which has been added 5 per cent of tung oil and 7--10 per cent of another resin, e.g. a phenol-formaldehyde resin or an alkyd resin.ALSO:A surface coating comprises a silicate underlayer covered with a layer consisting wholly of, or containing a preponderating proportion of, a synthetic resin or resins unaffected by the silicate underlayer.  Suitable synthetic resins are polymerization products of vinyl acetate or of acrylic esters, or mixtures of these, and smaller quantities of natural or of other synthetic resins may be added.  A vegetable oil may be present in either coating to improve adhesion between the two coatings.  A final coating of oil paint, varnish or enamel may be applied.  According to an example, a surface is coated with a pigmented solution of sodium silicate and, after drying, there is applied a 20 per cent solution of an acrylic ester resin in xylol, to which has been added 5 per cent of tung oil and 7--10 per cent of another resin, e.g. a phenol-formaldehyde resin or an alkyd resin.
Patent GB-291816-A (GB)
Title: Improvements in or relating to the dyeing, printing and stencilling of materials made of or containing cellulose derivatives
IPC: C09B3/06
Filed: 1926-12-14
Abstract: 291,816. Dreyfus, H. Dec. 14, 1926. Addition to 291,118. Samples furnished. Thiourethanes; azo and anthraquinone dyes.- Colouring matters or compounds in which an aryl dye nucleus or component thereof is linked directly or indirectly to one or more thiourethane or substituted thiourethane residues are used for dyeing or otherwise colouring cellulose esters and ethers. Anthraquinone and azo dyes are specified; the dyes or their components may be prepared by heating the corresponding isothiocyanates (described in the parent Specification) with alcohols or alkali metal alcoholates or mixtures thereof or with alcoholic caustic alkali, by treating the corresponding thiourea chloride compounds with alcohols or alcoholates, by treating halogen compounds with esters of sulphocarbamic acid, or in some cases by prolonged boiling of an amino compound with an alcohol and carbon bisulphide. According to examples, (1) 1 - acetylaminoanthraquinone-4-thiourethane, obtained by heating 1-acetylaminoanthraquinone- 4-isothiocyanate (from 1-acatylamino-4-aminoanthraquinone and thiophosgene) with ethyl alcohol or with alcoholic potash, dyes cellulose acetate in orange shades, and (2) the disazo dye obtained by coupling diazotized benzene-azo-anaphthylamine with salicylic acid-5-thiourethane (obtained by boiling salicylic acid-5-thiocyanate with alcoholic potash) gives golden orange shades. The dyestuffs may be rendered more soluble by the introduction of side chains containing hydroxyl groups as described in Specifications 285,968 and 285,969.
Patent GB-821988-A (GB)
Title: Unsaturated polyester resin compositions
IPC: C08G63/676
Filed: 1957-10-10
Abstract: An unsaturated polyester composition comprises (1) an unsaturated polyester derived from (a) a polyhydric aliphatic alcohol containing 2-7 ether-oxygen atoms, and (b) an a ,b -ethylenically-unsaturated dicarboxylic acid, an anhydride thereof or a 1-4 C atom alkyl ester thereof, at least 50 mol. per cent of (b) having the carboxyl groups in the trans position; (2) a monomeric liquid aromatic vinyl compound copolymerizable with (1); (3) a peroxidic catalyst; and (4) a cobalt siccative; (2) being 15-70%, (3) being 0.5-8%, and (4) being 0.05-5%, by weight of (1) and (2).  The polyester (1) may also be derived from (c) a dihydric alcohol not falling under (a) in an amount 0.1-1.0 mol. per mol. of (a); and it may also be derived from (d) a carboxylic compound not falling under (b) and which is not copolymerizable with (2) in a amount of up to 25% by weight of total carboxylic acids present.  Polyester-forming compounds specified include (a) triethylene, tetraethylene, pentaethylene, hexaethylene, tributylene, tetrabutylene and pentabutylene glycols, the addition products of 2-5 mols. of ethylene or propylene oxide with 1 mol. of propylene glycol, butylene glycol, trimethylol propane or pentaerythritol, and the addition products of 2-5 mols. of glycide with methanol, sec.-propanol or a polyhydric alcohol; (b) fumaric and mesaconic as trans acids, and maleic; (c) ethylene, diethylene and 1,3-butylene glycols, 2,2-dimethyl-propane-di-1,3-ol, pentachlorophenyl monoglycerine ether, perhydro-4,41-dihydroxy dimethyl diphenyl methane, and di-(4,41-hydroxy ethyl phenyl)-sulphonic ether; and (d) adipic, phthalic, isophthalic, terephthalic, hexachloroendomethylene tetrahydrophthalic, oleic, linoleic and benzoic acids.  The polyesters may also be isocyanate modified, e.g. by hexamethylene-, 2 : 4- and 2 : 6-toluylene-, 4,6-dimethyl-1,3-xylene- and 4,41-diphenyl dimethyl methanediisocyanates.  Vinyl aromatic compounds (2) specified are styrene, a -methyl styrene, p-methyl styrene, and divinyl benzene. Peroxidic catalysts (3) mentioned are benzoyl, cyclohexanone and cumene peroxides, the cyclohexanone peroxide being used in a dioctyl phthalate paste.  Cobalt siccatives (4) mentioned are the naphthenate, oleate, linoleate, maleate, acetate, chloride, bromide and fluoride.  Hydroquinone may be added as an inhibitor. Uses.-Non-tacky coatings for glass, metal, plastic, wood, paper or textiles.
Patent GB-783039-A (GB)
Title: Improvements in and relating to the manufacture of cutting tools or cutting tool holders
IPC: C22C1/04
Filed: 1955-11-07
Abstract: 783,039. Alloys. MALLORY METALLURGICAL PRODUCTS, Ltd. Nov. 7, 1955 [Nov. 16, 1954], No. 31762/55. Class 82(1) [Also in Group XXII] At least the shank 10 of a cutting tool or cutting tool holder is composed of a sintered powder composition or alloy consisting predominantly of tungsten together with nickel and copper, preferably 90 per cent tungsten, 6 per cent nickel and 4 oer cent copper. The shank may be stepped to take a carbide cutting tip 11 which is ingrally brazed or soldered thereto.
Patent GB-649809-A (GB)
Title: An improved support for a wound package of thread
IPC: B65H49/06
Filed: 1948-12-09
Abstract: 649,809. Support for thread packages. EVANS, THOMPSON & CO.. Ltd., EVANS, L., and THOMPSON, R. B. Dec. 9, 1948, No. 31830. [Class 120(ii)] [Also in Group VIII] A support for a wound package of thread when withdrawing the thread therefrom, comprises a body portion or base 1, a support disc 9 for receiving the wound package 2 with the upper surface of the disc in contact with the under surface of windings of the package 2 and having a central aperture 10 for the reception of the lower end of the core 5 on which the thread is wound, and a plurality of springs 11 supporting the disc 9 from the body portion or base 1. The springs 11 may be fixed at their respective ends to the base 1 or the disc 9 or to both and the upper surface of the disc may be coated with stuck-on fibrous material.
Patent GB-536460-A (GB)
Title: Improvements in sparking plugs for internal combustion engines
IPC: H01T13/46
Filed: 1939-12-09
Abstract: 536,460. Sparking-plugs. PLESSEY CO., Ltd., GAUT, G. C., and COLLENDER, H. F. Dec. 9, 1939, Nos. 31895/39 and 7785/40. [Class 7 (iv)] Trains of sparks are formed between an' inner or central electrode and an outer electrode by providing a discontinuous surface of conductive or semi-conductive material on a refractory insulator between the two members. The surface may consist of particles of nickel, tungsten, a platinum-iridium alloy, a refractory carbide or boride, or copper (unless a fuel containing lead is used), deposited by spraying. Insulators subject to sintering, e.g. comprising aluminium oxide and a binder such as paraffin wax or a synthetic resin, should receive the conductive deposit before sintering. The surface of the insulator may be smooth or it may be roughened to provide projections or ridges, e.g. concentric, as by etching or moulding. The discontinuous surface may be formed by applying a paint, parts of the surface being coated with a protective film which is subsequently removed. As shown in Fig. 1, the inner electrode consists of a rod 15 separated from a casing 11 forming the outer electrode by an insulator 16 held in place by flanging the casing inwardly at 22 so as to force a sleeve 23 against a shoulder 24 on the insulator, gastight packing rings 26, 28 being provided. At its lower end the casing 11 is recessed to receive a disc 30 provided with the discontinuous surface and has a shoulder 34 and a flange 31 to hold the disc in position. The end of the rod 15 may be flush or riveted over at 33. The disc may be replaced by a tubular insulator extending as shown by the broken lines 37. In Fig. 3 not shown, the insulator is shortened and the space below it is filled with aluminium oxide or other ceramic powder, and the rod does not extend through the disc. In Fig. 9, the surface, consisting of metallized ridges 40, is formed on the end of an extension 51 of the insulator 16, and a conductive ring 52 having radial tongues 54 is spaced from the surface 40 : when starting from cold a spark may travel from the points 54. Such an auxiliary electrode may consist of a disc carried by an extension of the electrode 15.
Patent GB-1450636-A (GB)
Title: Electromagnetic drive assembly
IPC: F16C32/04
Filed: 1974-07-18
Abstract: 1450636 Automatic control of position MASCHINENFABRIK AUGSBURG-NURNBERG AG 18 July 1974 [27 July 1973] 31926/74 Heading G3R [Also in Division H2] In a drive system comprising a stator 10 and a magnetizable rotor 2 operationally spaced within one another, e.g. with rotor 2 magnetically levitated inside stator 10, the stator has at least two coils 3, 7 which simultaneously produce a rotating field by means of first currents for driving the rotor and also a non-rotating field by means of second currents superimposed on the first currents for positioning the rotor relative to the stator, and the system is made retro-active by sensing the spacing between the rotor and stator and then controlling the second currents to maintain a predetermined separation between these bodies. In the arrangement shown, the stator is provided with six coils each energized with first currents and each extending over 180 degrees, e.g. as with coils 3, 4 in Fig. 1, and any two coils such as coils 3, 7 (shown schematically in Fig. 3) may be additionally energized with second currents Is to produce a net deflecting force on the rotor along a bisector line 8, 9 between the axes of the coils. The second currents Is may have both D.C. and A.C. components. The position of the rotor 2 may be sensed by applying still further currents to portions of the stator coils, e.g. currents outside the frequency range of the first and second currents, and then using other portions of the coils as inductive pickups, with appropriate filtering networks. The rotor position may alternatively be sensed by inductive loops (13), Fig. 4 (not shown) in grooves (12) in the stator poles 11. The rotor may be of hard magnetic material whereby to act as a generator if the power for the rotatary field is switched off, the generated current then being preferably applied to the control system to control the position of the rotor.
Patent GB-648402-A (GB)
Title: Improvements in and relating to dynamo-electric machines
IPC: H02K19/38
Filed: 1947-12-03
Abstract: 648,402. Synchronous dynamo electric machines. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 3, 1947, No. 31943. Convention date, Nov. 25, 1942. [Class 35] A casing contains a synchronous machine with the field winding on the rotor supplied through a rectifier from a winding on a second rotor in which alternating current is induced from a second stator interconnected with the winding on the main stator, the rectifier being carried by the machine shaft. As shown, current is induced into an auxiliary winding on rotor 6 feeding the winding of synchronous rotor 4 through a rectifier 8 by an auxiliary winding on the stator 7 in parallel with the winding on the main stator 5. Specifications 302,931, [Class 35], and 518,891 are referred to.
Patent GB-160547-A (GB)
Title: Improvements in automatically operated electric switches for controlling electric motors
IPC: H02P7/288
Filed: 1919-12-22
Abstract: 160,547. Hirst, J. A., and Brook, P. S. Dec. 22, 1919. Controllers, actuating-mechanism for.-Motor controllers are automatically operated stepwise by electromagnetic mechanism from an " off " position to a full " on " position, and then, by a continued forward movement, from the " on " position again to the " off " position. Fig. 1A is the general scheme of an arrangement comprising a controller of this kind operated by an electromagnet F' set in action by a push-button J. When this is momentarilv closed it first directs current from the mains LL<1> into magnets h<1> closing double-pole main switches H and then makes a maintaining circuit for itself through an auxiliary switch A. Connection is also made to F<1> which has a movable core 26, Fig. 2, linked through ratchet gearing to a drum 0. Successive strokes of the core move top set fingers s<1> so as to close switches S and thus short circuit sections of starting resistance R. The succession is automatically kept up after the first stroke by a mutual interrupting action between the magnet F<1> and a relay magnet E<1>. The rate of succession is regulated by retarding devices such as an eddy-current brake N. When the full " on " position is reached the circuits both of F' and E<1> are broken at contacts d, d', and the succession is stopped. To pass from the " on," again to the " off " position, a push-button K is momentarily opened. The magnets h<1> are thus de-energised, the main switches H are opened, and an auxiliary switch B is closed for the purpose of energising the magnet F' for one further stroke, which completes the working cycle. In a slightly modified arrangement, the relay E' is dispensed with and the magnet F<1> arranged to work as an automatic self-interrupter. In a further modification an additional " inching " push-button is provided which has the function of connecting up the main-switch closing coils while leaving the resistance cutting-out mechanism inoperative, so that the motor is only allowed to run slowly with full resistance in circuit. The action of the individual resistance switches S is shown in Fig. 4. Rollers 1 on the tappet fingers s engage and straighten toggle-levers 9, 10 so as to turn the corresponding switch-lever S about its pivot 12. When the tappet moves further in the direction of the arrow, it re-opens the corresponding switch by engaging a tail piece 4.
Patent GB-1199780-A (GB)
Title: Improvements in or relating to Waveguide Filters
Inventor: ELDER KENNETH FREDERICK
IPC: H01P1/208
Filed: 1967-07-13
Abstract: 1,199,780. Filters. GENERAL ELECTRIC & ENGLISH ELECTRIC CO'S Ltd. 12 July, 1968 [13 July, 1967], No. 32231/67. Heading H1W. Some of the shunt reactances forming a band-pass filter in a waveguide are provided by irises resonant at frequencies outside the passband. The filter shown comprises half-wave resonant sections formed by two sets of posts 4, 5, 6 which provide inductive reactances shunting the rectangular waveguide 1. The filter also comprises a central section 2 bounded by irises 8, 9 which are resonant at frequencies above or below the pass-band and provide shunt reactance at frequencies within the band in known manner. The effect of the irises is to increase attenuation outside the pass band. This effect may be enhanced by reducing (as shown) or enlarging the cross-section of the central waveguide section 2. In the embodiment, each iris is formed by a thick metal plate provided with a central circular aperture into which a turning screw extends.
Patent GB-209090-A (GB)
Title: Improvements in or relating to locomotives and other vehicles having combined internal combustion and electric propulsion systems
IPC: B61C9/24
Filed: 1923-12-27
Abstract: 209,090. Kilburn, B. E. D., (Sulzer FrÞres Soc. Anon.). Dec. 27, 1923. Heating vehicle; petrol-electric vehicles.-The electric generator c driven by an internal-combustion engine d is adapted to supply current to the electromotors b driving the axles or to electric heating devices g. In this way the electric heating system supplements the ordinary hot water or other system deriving its heat from the engine, when the locomotive &c. is stationary or the power of the engine is reduced. The current supplied to the heating devices may be regulated by a controller f in the driver's cab.
Patent GB-1034600-A (GB)
Title: Fluid sorter
IPC: G06F7/06
Filed: 1964-08-07
Abstract: 1,034,600. Statistical apparatus. SPERRY RAND CORPORATION. Aug. 7, 1964 [Aug. 19, 1963], No. 32314/64. Heading G4M. In a sorting machine perforated record cards are sensed pneumatically and a fluid amplifier is used to deflect the cards at a sorting station. Cards 18 are fed, long edge leading, by rollers, an endless band, an air stream or gravity to a sensing station 12 having an orifice 26 which may be aligned with a selected column of the cards. Arrival of the card at the sensing station causes a pressurerelease aperture 32, Fig. 2 (not shown), to be blocked so that pressure builds up in chamber 24 and is available for sensing through orifice 26. The bottom wall of channel 16, Fig. 1, may be porous so as to provide a frictionless air cushion for the card 18 to glide on. If a perforation is present in the selected column, pressure is applied to the control input 31 of fluid amplifier 50 and the power stream is switched from channel 56 to channel 48. The distance between orifices 26, 46 is so chosen that the fluid jet emerging from orifice 46 only deflects the leading edge of the card if the perforation is in a particular index position which corresponds to pocket 36. If a perforation is not present at this particular index position, the card passes to pocket 38 or to a following sensing station. The suction produced in channel 48 when the power stream is flowing through channel 56 may be used to assist in keeping the card 18 horizontal as it passes over pocket 36. By suitable choice of the distances between the orifices 26, 46 of a series of sensing/sorting stations, the cards may be sorted into pockets corresponding to the positions of perforations in the selected column. The amplifier may be made monostable by incorporating a feed back channel or by designing it so that the back pressure produced by the presence of a card beneath orifice 46 makes the power stream flow in channel 48 unstable so that it switches back to channel 56 after a predetermined time.
Patent GB-245154-A (GB)
Title: Improvements in or relating to cigarette substitutes
IPC: G09F19/10
Filed: 1925-12-24
Abstract: 245,154. United Cigarette Machine Co., Inc.., (Assignees of Clootens, C.). Dec. 27, 1924, [Convention date]. Paper tubes.-Cigarettes are advertised by means of dummy cigarettes made of paperwrapped cardboard tubes, the dummies being made by means of fittings adapted to an ordinary cigarette making machine. A cardboard strip is passed under a roller 4 and is bent into a tubular form by passing through guides 3, 2, Figs. 2 and 3, the guide 2 having a projection 6 to prevent the edges of the strip from overlapping. The cardboard tube then passes into the usual wrapping guide 1 and is covered by a strip of cigarette paper 7 which retains the cardboard tube in shape.