baber/WOPTO huggingface dataset:
Patent GB-447706-A (GB)
Title: Improvements in fasteners for securing and supporting wearing apparel
IPC: A41F1/04
Filed: 1935-04-10
Abstract: 447,706. Corset fastenings. CANHAM, A. R., 40, Sheen Lane, East Sheen, Mortlake, London, and VOWLER, E. H. 0., The Firs, Whitton Road, Twickenham, Surrey. April 10, 1935, No. 11125. [Class 141] [See also Group XXV] A corset &c. fastening devoid of unsightly projections comprises a flexible strip 8 provided with long and short slots 9, 10 and corresponding long and short tongues 11, 12, co-operating with a flexible member formed of two superposed flexible strips 1, 2. Strips 1, 2 are centrally connected by a rivet 3 to allow relative sliding movement between the end portions when bending occurs during wear. The strip 2 has lugs 4, 5 which are bent to form bridging pieces 6, 7 between the strips, the ends being bent down over the outer face of strip 1 as shown. Strip 1 has lugs, not shown, serving to keep strips 1, 2 spaced apart. Fastening is effected by inserting tongue 11 between the strips and engaging it with upward movements behind the part 6, the tongue 12 then being passed between the strips and engaged behind part 7 by downward movement. To prevent accidental disconnection the inner edge of tongue 11 may be cut away as indicated in dotted lines to provide a shoulder engaging the lower edge of part 6. Alternatively, a recess may be cut in the inner edge of tongue 12 to receive part 7. Fig. 6 shows a modification in which the strips are secured together and spaced apart by shouldered rivets 17, 18 near their ends, the rivets also serving in place of the parts 6, 7 for engagement in slots 9, 10. The rivet 17 is shown as engaged in a slot to allow relative movement on bending. A modification is described in which the parts 1, 2 are formed integrally by folding a blank, slotted to leave connecting webs which also function in place of the parts 6, 7. The fastening members are secured to the corset by suitable means such as stitching, and slots 15, or perforations, not shown, may be provided to facilitate this.
Patent GB-762609-A (GB)
Title: Method of treating boiler feed water
IPC: C02F1/20
Filed: 1954-04-15
Abstract: Hydrazine salts of phosphorus acids and of partial esters of phosphorus acids are used for deaerating boiler feed water.  Salts specified are monohydrazine metaphosphate, monohydrazine dihypophosphite, tetrahydrazine pyrophosphate, dihydrazine pyrophosphate, monohydrazine orthophosphate, monohydrazine orthophosphite, dihydrazine orthophosphite and hydrazine methyl, isopropyl and butyl orthophosphate, the first four of which are alleged to be novel.  The salts may generally be prepared by interacting hydrazine or hydrazine hydrate with a phosphorus acid in the presence of an organic solvent medium, for example methanol or ethanol.  Monohydrazine metaphosphate may be prepared by dehydrating monohydrazine orthophosphate, for example by heating to 160-170 DEG C. under a pressure of 10 in. of Hg for 8 hours.ALSO:Dissolved oxygen is removed from boiler feed water by adding thereto, preferably after deaeration, a hydrazine salt of a phosphorus acid or of an organic partial ester of a phosphorus acid.  An excess of 150-200 per cent of hydrazine salt is preferably employed.  Salts specified are monohydrazine metaphosphate, monohydrazine dihypophosphite, tetrahydrazine pyrophosphate dihydrazine pyrophosphate, monohydrazine orthophosphate, monohydrazine orthophosphite, dihydrazine orthophosphite and hydrazine methyl, isopropyl and butyl orthophosphate.
Patent GB-1136281-A (GB)
Title: Improvements in or relating to concrete mixing plants
IPC: B28C7/08
Filed: 1966-03-14
Abstract: 1,136,281. Concrete mixers. ELBA-WERK ETTLINGER BAUMASCHINEN-UND HEBEZEUGFABRIK G.m.b.H. 14 March, 1966 [13 March, 1965], No. 11157/66. Heading B1C. [Also in Division G1] A concrete mixing plant comprises a frame 1 on which is mounted a feeder 4, a weighing receptacle which receives aggregates from the feeder 4 and a hoist mixer 13 for mixing the aggregates with cement and water, the plant being provided with a raiseable framework 17 which comprises two pairs of supports 16, 24 carrying a supply hopper 19, one of the pairs of supports 16, when the framework 17 is in its raised position, forming a hoist track 18 along which the hoist mixer is conveyed to an elevated position II for discharge purposes. The two pairs of supports 16, 24 are pivotally connected to a transom 25 and in their working position are interconnected by a beam 27, the supports 16, 24 being pivotally and detachably connected at 43 to brackets 44 on the frame 1 so that the framework 17 can be lowered by a cable and winch arrangement from the working position to a transporting position. Devices 14, 15 are arranged on the frame 1 for metering predetermined quantities of cement and water into the hoist mixer 13 when in its lowest position on the track 18 and a drag line scraper 6 is mounted on the frame 1 for charging the feeder 4 with aggregates which are stored in areas 9 adjacent to the plant. The supply hopper 19 may comprise three separable parts 36, 37, 38 having a motor controlled discharge outlet, the hopper 19 collecting mixed concrete from the mixer 13 before discharging it to vehicles 41 below the framework 17.
Patent GB-1022062-A (GB)
Title: Apparatus for controlling machine tools
IPC: B23Q35/122
Filed: 1963-03-21
Abstract: 1,022,062. Programmed control of machine tools. MASCHINENFABRIK AUGSBURG-NURNBERG A.G. March 21, 1963 [March 21, 1962], No. 11216/63. Heading G3N. In a system for discretely positioning a tool relative to a work-piece, a template is scanned by a device carrying contact members lying on a line which bisects the angle between the possible directions of travel of the scanning device. As shown, a punched card template 1 is carried in a frame 2 scanned by a bifurcated device 4 carrying co-acting pins, which make contact through holes 15-19, 21 in the template, lying on the straight line bisecting the right angle between the two directions of motion of the device. The direction of travel of the device is determined by pins 7, 8, the command signal to a single-spindle drilling machine, not shown, is determined by a pin 5 and movement of the device is stopped by a pin 6, which is surrounded by pins 9-12 which slow down the drive of the device in preparation for stopping when pin 6 makes contact. In operation the device is caused to follow a track 20 under the command of direction holes, such as 17, 18, in the card and is stopped at the end of each movement by holes, such as 15, a hole is then drilled as programmed under the command of holes such as 16, 21.
Patent GB-1470095-A (GB)
Title: Single-column lifting installations
IPC: B66F7/02
Filed: 1974-03-14
Abstract: 1470095 Propelling elevators J VILLARS 14 March 1974 [14 March 1973] 11350/74 Heading B8L Apparatus for use in lifting vehicles comprises a single column 10 along which a carriage 15 is movable, an arm 17 extending from the carriage 15, a plurality of branches 18 having vehicleengaging pads 19 being pivotally attached to the arm 17, the carriage 15 being movable along the column 10 by a motor 26 on whose output shaft is a sprocket wheel 24 about which passes a chain 21 connected at each of its ends to a plate 14 on the column 10 and passing about a sprocket wheel 20 on the carriage 15. The arm 17 is retracted into a recess 35 in the ground when the carriage 15 is in its lowermost position. A chain 30 extends from the carriage 15 about a sprocket wheel 31 to a stirrup of a sprocket wheel 27 about which the chain 21 passes, all those members providing for the tensioning of the chain 21. If either of the chains 21, 30 breaks a head 22 which is connected to the chain 21 is urged by a spring 23 into engagement with a switch 25 which stops the motor 26.
Patent GB-224819-A (GB)
Title: Improvements in or relating to means for cleaning and polishing vehicles
IPC: B60S1/66
Filed: 1924-05-08
Abstract: 224,819. Rose, S. A. M., Streeten, C. W., and Tanous, A. May 8, 1924. Securing chain-wheels on shafts. - A sprocket-wheel d is freely mounted on the crank-shaft b of a vehicle engine and is adapted to be secured to a disc i, keyed to the shaft, by means of a pin g<1> carried by a spring arm f pivoted to the disc i. Normally the pin g<1> runs in a groove g in the sprocket wheel, as shown, but the spring arm f may be moved so that the pin enters a hola h in the wheel to secure it to the. disc. The sprocket-wheel d drives the shaft a of a cleaning-device m.
Patent GB-699265-A (GB)
Title: Improvements in or relating to earth boring apparatus
Inventor: BODINE ALBERT GEORGE
IPC: E21B7/24
Filed: 1951-05-16
Abstract: 699,265. Percussive drilling assembly. SOUND RILL CORPORATION. May 16, 1951, No. 11424/51. Class 85 To prevent loss of energy from a percussive rock drilling assembly due to the setting up of vibrations in the surrounding drill mud fluid, a damping means or an acoustic decoupler is mounted on the drill tool in communication with the mud fluid and spaced a distance from the source of wave generation of the tool which is substantially less than a quarter wave length, measured in the surrounding mud fluid of the sound wave generated in said mud fluid. The drilling assembly comprises a bit secured to a heavy column of substantial cross-section which is vibrated at its resonant frequency by a wave generator coupled thereto. The longitudinal impulses applied to the end of the column result from either the rotation of out of balance rotors 161 so arranged that all the forces and moments set up, except the forces acting longitudinally of the column, are neutralized, or from the longitudinal reciprocation of a mass, the rotors 161 or mass being operated by a high-speed low torque mud fluid driven turbine or an electric motor. The purpose of the wave generator is to transform the quantity of energy developed by the high speed low torque motor into a similar quantity of energy to be delivered into the ground by the bit as a large oscillatory force of small amplitude so sending . alternating waves of tension and compression through the soil to cause it to fail by stress failure. The frequency of the pulses applied to the column is such that velocity anti-nodes occur at the ends of the column and a velocity node at the centre thereof. To prevent loss of energy and vibration of the motor, it may be coupled to the drive of the vibrator unit by a splined shaft 121 and is situated at a quarter wave length or at a velocity node from the end of the column, i.e. a distance of half the length of the column. To prevent loss of energy due to vibraticns set up in the drill pipe supporting the drilling assembly, there is substantial reduction in the cross-section at the joint between the casings of the vibratory unit and the case of motor. In another form the joint between the drilling assembly and the drill pipe is a rubber sleeve bonded to each of them. The acoustic decoupler may comprise a downwardly directed bell 311 secured to the bit shank, there being entrapped in said bell a quantity of air which is compressed and expanded by the mud fluid to damp out vibrations started therein. Alternatively the end of the bit shank is recessed and contains trapped air or gas filled grease. To prevent vibrations being set up by the drilling assembly, it is separated from the mud fluid in the bore by a sleeve or pneumatic tubes may be fitted in recesses formed in the sides of the drill shank. The bit may have pivoted spring-biased blades or an axially spring-biased blade, and the drill assembly may be rotated.
Patent GB-389290-A (GB)
Title: Improvements in means for shaping metal objects, particularly metal stampings
IPC: B21D1/00
Filed: 1932-04-21
Abstract: 389,290. Shaping metal sheets &c. CHARLIER, A., Rue Joseph Wauters, Bois d'Haine, Belgium. April 21, 1932, No. 11489. Convention date, Feb. 10. [Class 83 (iv).] A metal sheet or plate is held at its edges between grippers 10 while a shaping die 6 is pressed up into it to shape it. Each pair of grippers 10 are geared together, are opened by handles 12, and are eccentric with teeth to increase the grip as shaping proceeds. The tensioning of the sheet smooths out any surface deformation. Parts for vehicle bodies may be shaped in the press. The grippers extend from side to side of the press and are secured to blocks which are adjustable horizontally along the frame.
Patent GB-1262873-A (GB)
Title: Unsaturated polyesters
Inventor: CROWE ALAN
IPC: C08G63/553
Filed: 1968-03-08
Abstract: 1,262,873. Unsaturated polyesters. BRITISH RESIN PRODUCTS Ltd. 7 March, 1969 [8 March, 1968], No. 11548/68. Heading C3R. An unsaturated polyester resin is made by condensing an α-unsaturated α,#-dicarboxylic acid or anhydride with a molar excess of a glycol having at least 3 carbon atoms until the acid value of the reaction mixture is between 200 and 80 adding from 0À01 up to less than about 0À3 mole of dicyclopentadiene per mole of the dicarboxylic acid to the reaction mixture and heating the reaction mixture at between 170‹ and 230‹ C. until a product having an acid value below 50 is produced. Specified glycols are propylene glycol, 1,3-butylene glycol and neopentyl glycol and mixtures thereof with ethylene glycol, and specified acids are itaconic, mesaconic, maleic and fumaric acids.
Patent GB-734449-A (GB)
Title: Improvements relating to magnetic couplings
IPC: F16D27/118
Filed: 1953-04-27
Abstract: 734,449. Positive clutches. EBERSPACHER, H., [trading as EBERSPACHER, . J.]. April 27, 1953 [May 8, 1952], No. 11558/53. Class 80 (2). In an electromagnetic positive clutch, the hollow driving- shaft 1 surrounds the driven shaft 2 and both shafts are disposed on the same side of the magnet 5, which latter is stationary and the other side of which is closed by a plate 14 carrying a core 13, the shaft 1 having a toothed end 8 adapted to be engaged, under the pressure of a spring 7, by the toothed end of a sleeve 3 rotatable with but axially slidable on the end of the shaft 2 within the magnet. The sleeve 3 has a flange 9 which, when the clutch is disengaged upon energization of the magnet, bears against the side of the magnet to brake the shaft 2.
Patent GB-561505-A (GB)
Title: Improvements in or relating to metal constructional members
IPC: E04C3/04
Filed: 1942-08-18
Abstract: 561,505. Composite metal sectionbars. MILLS SCAFFOLD CO., Ltd., and WELLS, G. W. Aug. 18, 1942, No. 11570. [Class 20 (ii)] Composite sectionbars formed by assembling and securing together angle or channel-section pressed sheet-metal sections have the flanges formed of double thickness metal by turning the edges of the flanges inwardly to extend to the web. For an H or I-section bar, two sheet-metal channel-bars 3, 4 are joined back to back, and the flanges 3b, 4b are made sufficiently long to be turned back upon themselves with the ends 3c, 4c turned again along the webs of the elements or back again upon themselves. For a T-section composite bar sheet-metal angle-bars 5, 6 are joined by two flanges while the other flanges 5b, 6b are turned back upon themselves as shown at 5c, 6c. The pressed-metal parts may be joined together in any suitable manner and the turned-back portions may be spot-welded to each other and to the webs.
Patent GB-1219929-A (GB)
Title: Photosensitive polycarbonamide compositions
IPC: C08G69/48
Filed: 1968-03-08
Abstract: 1,219,929. Photo-sensitive polycarbonamides. TIME Inc. 8 March, 1968 [10 March, 1967], No. 11589/68. Heading C3R. [Also in Division G2] Photosensitive polycarbonamides of the general formula where Q is the residue of a synthetic linear thermoplastic polycarbonamide, the terminal groups being attached to the bracketed radicals, n 1  and n 2  are 0, 1 or 2 and their sum is 1 to 4, are prepared by heating a mixture of the polycarbonamide and p-benzoylphenyl glycidyl ether at 20 to 200 C., the amount of ether being sufficient to substitute 0À02 to 0À33 moles of ether per 1000 grams of polyamide. Suitable polyamides are condensation products of dicarboxylic acids and diamines or their salts, of aminocarboxylic acids or their lactams or of interpolymers of these types. Reaction may be effected in a solvent and the product separated by adding a liquid in which it is insoluble, or the solution of reactants may be cast as a film which is dried and heated to effect reaction. In the latter case, the product may be purified by dissolving in a solvent, e.g. methanol and precipitating, e.g. with acetone. In their application to printing (see Division G2), the products may be mixed with materials which increase photosensitivity, e.g. N,N<SP>1</SP>- hexamethylene-bis-acrylamide and other bisacrylamides, and with polymerization inhibitors and heat stabilizers, e.g. methylene blue, pyrogallol, quinone and hydroquinone.
Patent GB-567856-A (GB)
Title: Improvements in or relating to liquid seals for shafts and the like
IPC: F16J15/44
Filed: 1943-07-16
Abstract: 567,856. Stuffing - box substitutes. SIMPLEX PRODUCTS CORPORATION. July 16, 1943, No. 11595. Convention date, Sept. 28, 1942. [Class 122 (v)] A device for sealing the space between a shaft and its housing comprises a resilient ring 20 of steel &c. sealingly engaging the cylindrical surface of one member and pressed axially by fluid pressure to engage a floating ring 14 of bronze &c. which is thereby pressed against a shoulder 16 on the other member. Preferably, two non-rotatable resilient steel rings 20, 21 and two floating rings 14, 15 are carried in a groove 13 in the shaft or a sleeve carried thereby, so that a seal against fluid pressure acting in either direction is obtained. In a modification, a spring ring is interposed between the rings 20, 21 to press them axially in opposite directions. The rings may be supported in a groove in the housing, the steel rings then resiliently clasping the shaft. All the rings may be split and the bronze rings may be silver plated. U.S.A. Specification 1,574,634 is referred to.
Patent GB-1175503-A (GB)
Title: Improvements in or relating to Pipe Couplings
Inventor: MCDONALD KEVIN
IPC: F16L47/10
Filed: 1968-02-14
Abstract: 1,175,503. Pipe couplings. BARTOL PLASTICS Ltd. 4 Feb., 1969 [14 Feb., 1968; 11 March, 1968], Nos. 7174/68 and 11658/68. Headings F2G and F2P. A synthetic plastics pipe coupling socket has an end portion 4 of larger internal and external diameter than the main length of the socket and an integral rib 5 projects inwardly of that portion for the retention of a synthetic plastics ring 6 which extends axially less than the length of the inside of the enlarged portion and forms with the inner end thereof an inwardly-facing annular recess in which is housed at least one sealing ring 7 for making sealing contact around the periphery of a pipe inserted into the socket. The lip 5 may be spaced from the outer end of the socket and the ring 6 be provided with an external groove located over the rib, and there may be two sealing rings 7 separated by a further ring 6. The socket may be integral with a main length of pipe or force fitted or secured by adhesive or heat or solvent cement welding on to one end of a synthetic plastics pipe or a clayware pipe. A socket may be formed at each end of a sleeve when the latter is provided at the mid-length thereof with one or more internal projections or a flange, or is constricted internally to less than the outside diameter of the pipes to be fitted into the sockets. The socket may be moulded with or without the lip 5, the lip, in the latter case, being formed subsequently.
Patent GB-744812-A (GB)
Title: Improvements in structural members for buildings and the like
IPC: E04C3/29
Filed: 1950-05-11
Abstract: 744,812. Reinforced concrete. BRITISH TRANSPORT COMMISSION, and ABELES, P. W. May 3, 1951 [May 11, 1950], No. 11759/50. Class 20(4). A concrete structural member consists of a first prestressed part A and a second part B cast on to the part A, the part B being pre-stressed after it has hardened. The part A covers the major part of the outer tensile surface of the composite member, and the adherence between the parts A and B produces a greater pre-stress in the adjoining portions of the part A than in the adjoining portions of the part B. In Fig. 6, the composite member is of I-section and the part A is indented at 12 to ensure good bond., Three cables 5a<SP>1</SP>, 5a<SP>2</SP>, 5a<SP>3</SP> are provided in the part A, the cables 5a<SP>1</SP>, 5a<SP>2</SP> being tensioned at the first stage. The cable 5a<SP>3</SP> and cables 5b<SP>1</SP>, 5b<SP>2</SP>, 5b<SP>3</SP> are tensioned when the part B has hardened. The cable 5b<SP>3</SP> is bent up at its ends as shown in Fig. 6. Untensioned reinforcements 13 may be provided. The part A may be of channel shape and the tensioned reinforcements for this part may be in the concrete thereof, or in the channel space which is 'filled with the concrete of the part B. Composite members A, B may be laid side by side to form a floor, and transverse tensioned reinforcements may be incorporated. Each part A may be built up of individual blocks.
Patent GB-1454897-A (GB)
Title: Electrical system for transmitting power from an electrical dc source to an ac load
IPC: H02H7/12
Filed: 1973-11-15
Abstract: 1454897 Protecting inverters EATON CORP 15 Nov 1973 [15 Nov 1972] 11802/76 Divided out of 1449893 Heading H2F In a system comprising at least one main load current semi-conductor switching device 20 for converting DC-AC, means 26 are provided for sensing a current overload and controlling a first switching means 60 for establishing a shunt circuit across the DC input and second switching means 62 responsive to said shunt current path to block conduction in said at least one semiconductor switching device 20 and responsive to re-establishment of DC voltage at the input to the system to re-establish load current in said semi-conductor switching device 20. As described, the inventer 20 obtains its DC supply by rectifying at 14 the three-phase mains 32. In the event of a shoot-through or a short circuit across the motor load 18, the voltage drop due to the limiting resistor or inductor 22 is sensed at 26 so that thyristor 60 is turned on, shortcircuiting the DC supply and turning off thyristor 62 so as to turn off the thyristors of the bridge inverter 20 after discharge of capacitor 44. The gate voltage of thyristor 62 is held reverse biased until capacitor 56 has discharged via inductor 54 and begins to recharge via diode 58 so as to turn off thyristor 60. Thyristor 62 is now retriggered and, if the fault persists after 20ms., delayed opening contactor 30 is opened and has to be manually reset.