baber/WOPTO huggingface dataset:
Patent GB-393576-A (GB)
Title: Improvements in process and apparatus for manufacturing pieces of reinforced concrete
IPC: B28B23/04
Filed: 1931-11-26
Abstract: 393,576. Moulding reinforced concrete. FREYSSINET, E., 32, Rue St-James, Neuilly-sur-Seine, France. Nov. 26, 1931, No. 32805. Convention date, Nov. 27, 1930. [Class 87 (ii).] Relates to the processes and apparatus for reinforcing concrete described in Specifications 338,864, 338,934, [both in Class 87 (ii), Moulding plastic &c. substances], and 364,621, and consists in that the high tensile steel reinforcing members are (a) of unequal length and/or (b) are arranged unsymmetrically with respect to the neutral axis of the work, and/or (c) are subjected to differing initial tensions. The process is described as applied (1) to the production of a tapered post, Fig. 1 (wherein reinforcements 1 of differing lengths are employed), (2) to the production of a beam, Fig. 2, (wherein reinforcements 4 of differing lengths and asymmetrical distribution are employed. Various devices for gripping and tensioning the reinforcements are described. Posts 30, Fig. 5, may be passed into the mould, the reinforcements 33 secured by wedges engaging in slots in the upper ends of the posts 30 and tension applied by screw gear 37a. A two-part mould 35a, 35b, Fig. 9, may be employed, bosses 40 being welded thereon to receive gripping members 44 which may be of high tensile tempered chromium steel and which are clamped by screws 46. Blocks 50, Fig. 8a, may be interposed so that one pair of clamping members may grip several reinforcements. When reinforcements are tensioned to differing initial tensions, they may.be fed from a supply 60, Fig. 10, and gripped at 61 at one end of a mould 35, a second gripping member 62 being applied to the reinforcement outside the mould so that a predetermined tension may be applied as by a hanging weight F<2>. The mould is then moved in the direction Fl as by an hydraulic jack till the weights or other loading devices on the various reinforcements are operative, whereupon gripping members 66 within the mould are clamped on to the reinforcements, the mould then being returned and the reinforcements severed outside the mould. Concrete is then cast round the tensioned reinforcements. Provision is made for transferring the tension from the various reinforcements to the set and hardened concrete simultaneously. Concrete may be cast centrifugally into open-topped moulds 102, Fig. 20, which are placed around reinforcements previously embedded in concrete end blocks 101, the reinforcements being tensioned by wedges 103 driven between the mould and one of the pre-cast end blocks. The moulds are then placed in a cylinder with their open tops facing radially inwards and the concrete cast centrifugally. Specification 366,544 also is referred to.
Patent GB-870430-A (GB)
Title: Resinous insulation for electrical apparatus
IPC: H01B3/04
Filed: 1959-09-28
Abstract: A thermosetting resinous insulation for electrical apparatus, prepared for use as a paste or as a lamina in a tape, comprises an epoxy resin containing an average of more than one epoxy group per molecule, a sebacic anhydride polymer and, as an inorganic filler, flake mica, paper or glass fibre.  The ratio of epoxy resin to polyanhydride is from 4 : 1 to 3 : 1 by weight.  In an example the bars of an alternator are bound with a tape which includes one or more supports of glass wool, one or more layers of mica in flake form and one or more sheets of mica agglomerated by means of a resinous composition prepared from (1) an epoxy resin obtained by the alkali-catalysed reaction of bis(4-hydroxyphenyl)-2, 2-propane and epichlorohydrin and (2) a sebacic anhydride polymer with a melting point of 75 DEG C.
Patent GB-1480830-A (GB)
Title: Circuit arrangements
IPC: H02P7/288
Filed: 1974-07-26
Abstract: 1480830 Automatic current control ROBERT BOSCH GmbH 26 July 1974 [27 July 1973] 33102/74 Heading G3R [Also in Division H2] A radial blower with a drum rotor and forwardly curved blades is driven by a D.C. motor supplied with regulated current. As shown, a motor 10 drives a blower in a vehicle air-conditioning system, and is connected in series with a transistor 11 and current measuring resistor 12 across the vehicle battery. The voltage developed across the resistor 12 is tapped off through an amplifier 20 and compared in a further amplifier 16 with a reference voltage taken from a potentiometer 13 and representing a desired motor current. The output from the amplifier 16 controls the conduction of the transistor 11, so that current overload is prevented. The potentiometer 13 may be replaced by a resistor which is sensitive to the interior vehicle temperature, so that the  reference voltage supplied to the amplifier 16 is varied in dependence on the temperature, and the air flow is correspondingly varied. Amplifiers 16, 20 may be omitted if the value of the resistor 12 is sufficiently large.
Patent GB-1080484-A (GB)
Title: Graft terpolymer process
IPC: C08F279/04
Filed: 1964-08-14
Abstract: In a process for preparing a graft terpolymer from a mixture comprising acrylonitrile, a natural or synthetic rubber and a monovinyl aromatic compound by bulk prepolymerizing the mixture to a conversion of from 10 to 45%, suspending the prepolymerized reaction product mixture in an aqueous medium, and then polymerizing the reaction product mixture to substantial completion, at least one additional portion of the monovinyl aromatic compound is added to the reaction product mixture after at least 20% conversion of the monomers to obtain a terpolymer product having a monovinyl aromatic compound to acrylonitrile weight ratio in the range of from 60/40 to 74/26.  In the examples, styrene and acrylonitrile are polymerized on to a linear polybutadiene having a 35% cis-1,4 content.  Additional styrene is added just prior to the suspension polymerization step and optionally also after one or more intervals during this polymerization step.
Patent GB-677160-A (GB)
Title: Improvements in clips for holding building boards on laths for ceilings, roof and wall linings and partitions
IPC: E04B9/24
Filed: 1949-12-30
Abstract: 677,160. Wall &c. linings. HAY, H. M. March 28, 1951 [Dec. 30, 1949], No. 33338/49. Addition to 558,174. Class 20(iv) [Also in Group XXV] A clip plate a for holding building boards d against the flanges of a T-section lath e consists of a metal plate bent into V or U or channel cross section formed at the bend with a contracted mouthed slot b in each limb of the plate adapted to engage with and slide along a flanged or beaded head el of the web of the lath, and a gap c in the end of one limb of the plate extends into the widened end b<SP>1</SP> of the slot b in that limb so that the latter can be snapped into engagement with the head of the web. The plate is moved along the lath with the slot b and b2 engaging the web and head e<SP>1</SP>, and when in the desired position the slot enlargement b<SP>1</SP> is snapped into position. The gap c may be in the form of a convergent notch. A second enlargement b<SP>3</SP> of the slot b may be made in one limb, as shown in Fig. 5, so that the clip may be used with boards of two different thicknesses or with laths of two different depths of web. Tongues f to serve as spacers for the boards d may be formed and bent as in Fig. 6 by cutting away the sides of the slot b in one of the links at the bend of the clip. The clip preferably extends beyond the borders of the flanges of the lath. The head e<SP>1</SP> of the web of the lath may be as shown, or, for example, of bulbous or convergent or divergent triangular section.
Patent GB-1021261-A (GB)
Title: Moulded foodstuffs and a method of producing such foodstuffs
IPC: A23P30/10
Filed: 1962-08-30
Abstract: 1,021,261. Moulding foodstuffs. NORMARIN A/S. Aug. 30, 1962 [Nov. 14, 1961], No. 33381/62. Heading B5A. [Also in Division A2] Foodstuff, e.g. fish or meat, in the form of a paste is moulded into a shape, e.g. a fish, bowtie or wreath, by forcing the food from a hopper 24 into mould recesses 21 in a P.V.C. plate 26, scraping excess food from the plate with the front edge 33 of the hopper, and then freezing the moulded foodstuff. The frozen pieces are then fried and refrozen.
Patent GB-938606-A (GB)
Title: Improvements in or relating to the casting of rimmed steels
IPC: C21C7/10
Filed: 1960-09-29
Abstract: 938,606. Casting processes. HOESCH A.G. Sept. 29, 1960 [Oct. 3, 1959], No. 33495/60. Class 83 (1). When casting rimmed steel the pressure in the mould is decreased from atmospheric by from 30-160 mm. Hg as soon as the steel has reached a height of between 50-200 mm. in the mould, this pressure is maintained until the mould is filled and is then reduced, at a rate of at least 20 mm. Hg per minute, to below 400 mm. Hg. This final pressure may be maintained until solidification is complete.
Patent GB-1248864-A (GB)
Title: A coupling device for connecting the wire with the inner core tube in wire line core drills
IPC: E21B25/02
Filed: 1969-07-02
Abstract: 1,248,864. Boring earth. ATLAS COPCO. A.B. 2 July, 1969 [2 July, 1968], No. 33498/69. Headings E1F and E2A.  A wire line core drill has a locking mechanism by which the inner core tube 4 can be connected to or released from a support head 2 on the end of the wire. The mechanism consists of a pivoted lever 1 (or two levers) with an upper arm (15, Fig. 2 or 20, Fig. 4) to engage the head 2, and another arm (16, Fig. 2 or 21, Fig. 4) which can engage a recess 10 in the drill tube 5. A spring (3, Fig. 2 or 26, Fig. 4) biasses the second arm into the recess to hold the core tube at the bottom of the drill tube during drilling. The lever can be withdrawn from the recess by movement of the head 2 past the end of the upper lever into the Fig. 2 position. The head can be released from the upper cam by downward movement of a sleeve above the head to act on the bevelled upper edge of the hook 14.  The locking mechanism may be connected to the body 6 of the inner core tube by a rubber ring 8 which expands under the upward pressure exerted when the inner core tube is filled, causing an increased back pressure in the flushing liquid which therefore is an indication that the tube is full.
Patent GB-483859-A (GB)
Title: Improvements in and relating to the dressing of grain and seeds
IPC: B02B1/02
Filed: 1936-12-07
Abstract: 483,859. Feeding granular &c. materials. STRICKLAND, L. R. Dec. 7, 1936, No. 33516. [Class 78 (i)] Apparatus for dressing grain and seeds with powder comprises means for feeding the grain and powder at prescribed rates to a mixing-machine, the powder being distributed evenly over the grain. The grain is fed from a hopper 5 by a pocket wheel 6 rotated by ratchet-mechanism operated from a shaft 11. The latter also operates a rod 17 by means of a cam 16, the rod effecting the oscillation of a shaft 23 with a quick return. The shaft is fitted with stirring arms 25 and with a vane 24 which ejects powder in a finely divided condition through an adjustable orifice on to the grain.
Patent GB-822014-A (GB)
Title: Improvements in or relating to pumps
IPC: F01B3/00
Filed: 1955-11-24
Abstract: 822,014. Reciprocating pumps. REINERS, W., and WIGGERMANN, G. Nov. 24, 1955 [Nov. 24, 1954; July 22, 1955], No. 33693/55. Class 102(1). [Also in Group XXIX] In an oil pump having a plurality of cylinder bores 8, Fig. 1, secured to a rotatable shaft 4 and connected to inlet and outlet slots 14 and ducts 13 in a pump housing end cap 2 through passages 15 in a flat annular valve plate 11, the latter is loosely keyed to the shaft 4 so as to be capable of slight axial and radial movement and is urged against the end cap 2 by spring biassed fit rings 16 embedded in the open ends of the cylinder bores 8 with slight diametrical clearance. The fit rings are tapered internally so as to expand towards oppositely tapered passages 15 the narrow ends of which are elliptical and lead into the slots 14, Fig. 2. In a modification each fit ring 27, Fig. 4, is of sleeve form and is held in the cylinder bore 8 by a profile ring 30 secured by springs 29, 31 and has a spherical front end surface spaced from the valve plate 11 by a ring 28 having a flat valve-contacting surface and a spherical sleevecontacting surface. In a further modification a corrugated spring ring is located in a groove of each fit ring or sleeve and abuts the end of its associated cylinder bore. In a still further modification the fit sleeve projects inwardly from and is integral with the valve plate and is provided with a piston-type sealing ring. Fig. 3 shows a revolving cylinder pump having two end caps 20 each provided with two arcuate slotted control ports 14 connected to an associated inlet duct 13 and to an outlet duct (not shown). Valve plates 11 loosely keyed to the shaft 21 are spaced from the inward open ends of the cylinder bores 24 by pairs of fit rings 16 urged towards the valve plate by a spring 17.
Patent GB-845929-A (GB)
Title: Improvements in or relating to electric switches for wrong-way alarm systems
Inventor: MCCRACKEN LEONARD
IPC: G08B9/06
Filed: 1957-10-31
Abstract: 845,929. Actuation of switches. RAY & CO. (LIVERPOOL) Ltd., J. W. Oct. 31, 1958 [Oct. 31, 1957], No. 33959/57. Class 38 (5). A switch, suitable to control an alarm system for indicating incorrect direction of rotation of a marine engine, comprises an engine-driven shaft 11 carrying a drum 12 which has three axially spaced flanges 12a, 12b, 12c, between which are pivotally secured two oppositely acting pawls 13, 14, controlled by springs 13a, 14a. The switch lever has two arms 16, which are pivoted on a shaft 15 and joined at their upper ends, the lower ends 16a, 16b being engageable by the pawls 13, 14, respectively. The lever carries a conducting strip 16c connecting two spring- urged spherical contacts 17, 18, which engage respectively a single contact strip 19 and two contact strips 20, 21, holes 29 serving to locate the brushes 17, 18, when the lever abuts either of the stops 27, 28. Strips 19, 20, 21 are connected to terminals in an upper portion 24 of the switch casing 10. In Fig. 1 the switch lever has been rotated by momentary engagement of the pawl 14 with the end 16b, to connect strips 19, 20, and in continued rotation of the shaft 11 the pawl 13 underrides the end 16a against the resistance of the spring 13a. Reversal of rotation of shaft 11 causes pawl 13 to momentarily engage the end 16a and so connect strips 19, 21. The lower part of the casing 10 may be oil-filled, by means of filler 30, to reduce wear on the co-operating faces of the pawls and lever ends.
Patent GB-174505-A (GB)
Title: Improvements in wave motors
IPC: F03B13/18
Filed: 1920-12-02
Abstract: 174,505. Harris, R. Dec. 2, 1920. Wave energy, utilizing. - A car 4, Figs. 1 and 2, which is acted upon by the waves is mounted to run up and down an inclined track comprising supporting- r a i l s 1, 2, between which a guide-rail 3 is mounted. The car is provided with supporting-wheels 4<a>, Figs. 1 and 3, which bear on the outer rails and depending longitudinal beams 4<b>, Figs. 3 and 6, on which are mounted vertical rollers 4<c> which engage under the flanges of the guide-rail and horizontal rollers 4d, which bear against the web of the guide-rail. The car is provided with air and watertight chambers 4<e>, Fig. 2, for adjusting its buoyancy and extending side members 4f against which the waves act. A cable 5 attached to the ends of the car passes around a guide-sheave 6 at the lower end of the track and several times around a drum 7, which is connected through ratchet gear to the powershaft 9.
Patent GB-282667-A (GB)
Title: Improvements in apparatus for engraving printing rollers
IPC: B44B3/04
Filed: 1927-12-15
Abstract: 282,667. TeissÞre, A., and TeissÞre, J. Dec. 23, 1926, [Convention date]. Addition to 248,645. Engraving.-Mechanism is interposed between a driving-motor and a roller being engraved, as described in the parent Specification, for determining the amount of rotation imparted to the roller between the operative strokes of the engraving-tool, and so varying the spacing of a series of helicoidal cuts by which the surface of the roller is covered. The roller 5 is rotated by an arm 6 fixed to a worm-wheel 7 driven by a worm 8 on a shaft 9 mounted on a disc 2, which is rotated from the driving-motor. A ratchet 10 is fixed on each end of the shaft 9 and is advanced by a pawl 11 on the end of a spring-pressed plunger 12 carried by the disc 2, each plunger being arranged to engage cams 4 adjustably fixed to a stationary member 3. During the idle stroke of the cutting-tool the cams 4 act on the rods 12 and the pawls 11 turn the worm 8, which, by rotating the wheel 7, rotate the roller 5 a small amount in addition to the normal rotation, and this additional amount determines the spacing between the cuts. The inclination of the cuts may be varied by changing the gears through which the disc 2 is rotated.
Patent GB-1010438-A (GB)
Title: Improvements in flat bed rib knitting machines
IPC: D04B11/18
Filed: 1963-08-28
Abstract: 1,010,438. Knitting-machines. S. A. MONK (SUTTON-in-ASHFIELD) Ltd. and B. A. MONK. Aug. 26, 1964 [Aug. 28, 1963], No. 34044/63. Addition to 958,074. Heading D1C. Selvedge control mechanism is provided in a flat bed machine having needle selecting mechanism as described in the parent Specification, which comprises a pair of superposed metal tapes 26, 27 each having a longitudinally disposed slot 28 arranged so that the slots of the respective tapes overlap one another to present a common slot. The tapes are arranged between the selector drum 10 and the needle selector members 12 so that when the drum is raised the fingers 14 of the members 12 normally project through the slot and engages the surface of the drum or apertures therein. The tapes are attached to the nuts of the screw fashioning mechanism and as fashioning proceeds they are accordingly moved relative to each other with the result that the effective slot of the two superposed tapes is varied in length. The fingers 14 which then engage the tape when the drum 10 is raised therefore fail to be selected by the drum and cause the corresponding members 12 to render their associated needles inoperative. The drum 10 is raised by toggle mechanism 15 operated from a shaft 19 which simultaneously operates a catch bar 20 to release the previously selected members 12 so that they can be reselected. The tapes may be in the form of endless bands or where a single control division is provided they may comprise bands which are secured to the fashioning screw mechanism and extend throughout all the knitting divisions of the machine, being held taut by weights secured at their ends.
Patent GB-1036026-A (GB)
Title: Improvements in or relating to wear-resistant, sliding-surface material and structure of synthetic resin with wire-mesh reinforcement and methods for fabricating the same
IPC: F16C33/00
Filed: 1964-08-13
Abstract: A wear resistant sliding surface material is produced by disposing a wire mesh sieve so that its lower surface is parallel to and at a selected distance from the working surface of a pressure applying flat plate, distributing through the sieve mesh and into the space so formed between the two surfaces a powder comprising polytetrafluoroethylene resin until the space is uniformly filled, removing the sieve to leave a first uniformly distributed powder layer, pressure bonding the powder layer so formed to a first side of a sheet of mesh fabric e.g. a metal wire mesh, to form an integral laminated material and heating the integral laminated material to cause sintering thereof.  The powder may also contain at least one inorganic filler e.g. graphite powder, molybdenum, lead, cadmium, molybdenum disulphide or powdered glass.  A second uniformly distributed layer may be formed in the same manner as the first, and may be pressure bonded to a second side of the sheet of mesh fabric prior to heating the so formed integral laminated material to cause sintering thereof. A structure having a surface formed of the wear resistant sliding surface material may be formed by integrally and securely bonding, by means of an adhesive, the mesh fabric of the material formed as described above to a surface of a structure.  The structure may comprise a backing structure, a mesh fabric e.g. a metal wire mesh, bonded to the backing structure by means of an adhesive, and a layer of a wear resistant material consisting of polytetrafluoro ethylene resin, the layer being integrally bonded with the mesh fabric, and the outer, exposed surface of the layer constituting a wear-resistant sliding surface.
Patent GB-321076-A (GB)
Title: An improved cover or lid for use upon a hot water jug or like container
IPC: B65D51/08
Filed: 1928-11-21
Abstract: 321,076. Clarke, C. P., (trading as Clarke & Sons,.J.). Nov. 21, 1928. Lids.-The lid or cover a of a hot water jug or like container is fitted at the underside with a C or U-shaped spring c engaging within the mouth of the vessel and attached by means of an angle bracket riveted to the centre of the spring at c<1> and to the lid at e<1> and f, the rivet e<1> serving also to attach the handle e. The front edge of the lid carries a hinged flap b counterweighted at b<1>. Reference has been directed by the Comptroller to Specification 25868/04, [Class 125, Stoppering &c.].
Patent GB-488250-A (GB)
Title: Apparatus for ether anesthesia
IPC: A61M16/18
Filed: 1937-12-09
Abstract: 488,250. Anµsthetic apparatus. AGOSTINO, F. D'. Dec. 9, 1937, No. 34171. Convention date, Dec. 12, 1936. [Class 81 (ii)] An apparatus for ether anµsthesia in which a mixture of ether vapour, fresh air and CO2 is delivered, has a water bath for vaporizing the ether and heating the mixture to be administered. The patient exhales into the mask 16 and the expired air opens a valve 17 and inflates a bladder 14. When the patient inhales, the valve 17 closes and a valve 171 opens. The bladder 14 releases its contents which pass into the tube 12 where fresh air is admitted through a valve 13 when the pressure in the apparatus falls below that of the atmosphere. The mixture passes through pipes 10 to the receiver 4 containing cotton wool impregnated with ether from a drip cock 19. The receiver is divided in two by a diaphragm 5 which causes the gaseous mixture to pass down one side through a gauze net 6 and up the other side through further impregnated cotton wool, thence through another set of pipes 101 and into the mask. The two sets of pipes and the receiver 4 are immersed in a water bath 1 heated by an electric resistance 2 or its equivalent. This serves to vaporize the ether and to warm the mixture of gases. A continuation 7 of the chamber 4 extends below the water bath and beneath the surface of the water in a container 8. Holes 9 allow water to enter which is vaporized by heat conducted from above.
Patent GB-1327313-A (GB)
Title: Purification of m-cresol
IPC: C07C39/07
Filed: 1971-07-21
Abstract: 1327313 m-Cresol SUMITOMO CHEMICAL CO Ltd 21 July 1971 [22 July 1970 8 Dec 1970 (2)] 34209/71 Heading C2C m-Cresol is recovered from a mixture thereof with at least one impurity (e.g. p-cresol) which is non-reactive with urea, by treating the impurity/m-cresol mixture with urea to convert the m-cresol component to a thermally decomposable urea/m-cresol reaction product, thermally decomposing the said reaction product, and then separating the m-cresol from the reaction mixture, the step of treating the impurity m-cresol mixture with urea and/or the decomposition step being carried out in benzene optionally substituted by 1 to 4 C 1-3  alkyl groups and/or 1 or 2 halogen atoms, a di-(C 2-5  alkyl) ether or a C 4-5  cyclic ether as the solvent medium. Specified solvents are benzene, toluene, xylene, isopropyltoluene, chlorobenzene, diethyl ether, dipropyl ether, tetrahydrofuran and dioxane. In examples, m-cresol is separated from m- and p-cresol mixtures and from a mixture of m-cresol, p-cresol, styrene and acetophenone.