baber/WOPTO huggingface dataset:
Patent GB-1061857-A (GB)
Title: Improvements in speech analysis systems
IPC: H04B1/66
Filed: 1965-09-24
Abstract: 1,061,857. Vocoders. INTERNATIONAL BUSINESS MACHINES CORPORATION. Sept. 24, 1965 [Oct. 1, 1964], No. 40710/65. Heading H4R. In a vocoder, Fig. 4, the excitation function consisting of voicedunvoiced. switching signal and pitch frequency signal derived from the speech by excitation function generator 2 is applied to a pitch frequency synthesizer 4A, which is similar to the synthesizer 4 used in the vocoder receiver, and the synthesized excitation signal is applied to an analyser 1A, similar to the analyser 1 used to derive the aggregate function signal from the original speech, to derive control signals proportional to the level of the excitation function in each of the analysis channels which signals are used to adjust attenuators R1 to Rn in the lines K1 to Kn so as to compensate, by adjustment of the aggregate function, any deviation from flatness of the envelope of the excitation function with respect to frequency.
Patent GB-1273420-A (GB)
Title: Improvements in and relating to the manufacture of girders
IPC: E04C3/294
Filed: 1969-08-15
Abstract: 1,273,420. Bending girders. PROCEDES NOUVEAUX DE CONSTRUCTION "PREFLEX" S.A. 15 Aug., 1969 [19 Aug., 1968], No. 40808/69. Heading B3A. In a method of making a bent girder having lateral flanges, one of which is in tension and embedded in concrete, and the other in compression, a rigid metal structure is applied to the compression flange 1 to prevent buckling thereof. The structure comprises angle irons 3, 4 and transverse channel-section irons 5, which are welded to the iron 3 and bolted to the iron 4. Each iron 5 has a plurality of bolt holes 7 to allow for different flange widths. Lubricant 8 may be provided between the irons 3, 4 and the flange edges to allow for relative sliding movement therebetween during bending, or they may be rigidly clamped to the flange to prevent sliding. A number of the structures are secured together end-to-end when bending long girders.
Patent GB-943475-A (GB)
Title: Improvements in linear cylindrical dampers
IPC: F16F9/36
Filed: 1959-12-02
Abstract: 943,475. Stuffing-box substitutes; hydraulic dampers. A. R. B. NASH. Dec. 2, 1960 [Dec. 2, 1959], No. 40864/59. Headings F2B and F2S. A damper, comprising a piston 4 and attached piston-rod 6 axially slidable in a cylinder 2 filled with damping fluid, is provided with a flexible diaphragm seal 14 between the pistonrod and that end of the cylinder through which the rod projects and with radial guide means for the piston-rod. The diaphragm 14 is made of an elastomer such as rubber and has a frustoconical shape. The guide means comprise a cylindrical cover 8 engaging the outer surface of the cylinder 2 and fixed to the end of the piston-rod. To avoid stretching or bursting of the diaphragm 14 due to undue pressure rise, the piston is provided with orifices 34 controlled by a non-return valve 32, whereby fluid may flow towards the end wall 3 of the cylinder. An elastomeric membrane 22 attached in fluidtight manner to the piston and piston-rod forms a recuperating chamber 20 which communicates to the atmosphere through holes 28 in the piston-rod. A cylindrical shroud 30, e.g. of wire gauze, prevents outward distortion of the membrane 22.
Patent GB-901589-A (GB)
Title: Improvements in or relating to machines for cutting tobacco or similar fibrous material
IPC: A24B7/08
Filed: 1960-11-29
Abstract: 901,589. Cutting tea. SCHMERUND, A., [trading as MASCHINENFABRIK. A. SCHMERMUND]. Nov. 29, 1960 [Dec. 7, 1959], No. 40972/60. Class 129. [Also in Group I] A machine for cutting material, e.g. tea or tobacco, comprises one or more curved cutting members 1, 2, having one dimension parallel to the axis of a nozzle 19 for feeding the material and a curved cutting edge formed by a bevelled face 112 which is part of a conical surface whose apex lies in said axis, the shape and mounting of the or each cutting edge being such that during one revolution thereof the cutting edge traverses the entire cross-section of the nozzle end effecting a cut which commences at one side or corner of the nozzle end and moves to the opposite side or corner. As shown, tobacco is fed by synchronously-driven belts 53 to the nozzle 19 beneath which is a shoot 23 for cut tobacco. A truncated conical cutter head with an apex angle α consists of two parts 13 and 14 keyed to a shaft 10 inclined at an angle of α/2 degrees to nozzle 19, and mounted in bearings. Displaceably mounted on shaft 10 above parts 13, 14, is a disc 5 with two downwardly-extending parts 6 having grooves in which cutters 1, 2 are secured by studs 29. The cutters are housed in parts 3 connected to a lid 4 keyed to the shaft 10. Rods 8 fixed to disc 5 extend outwardly through holes in lid 4 and are connected to a slide 56, 57 movable along shaft 10 and engaged by a setting member 35 of a guide member 47. Member 47 is displaceable along a guide 46 on operation of a hand wheel 56<SP>1</SP> which rotates a spindle 57<SP>1</SP> carrying a nut 48 connected to member 47. A grinding disc 36 mounted on the shaft of an electric motor 37 mounted for adjustment perpendicular to a supporting shaft 31 parallel to the supporting surface of the drum by guide means 38, 39 and parallel to the supporting surface of the drum by guide means 32, 33. The grinding device is reciprocated through gear mechanism by a rod 30. In modifications, three cutters may be mounted eccentrically on shaft or there may be one cutter in the form of a spiral.
Patent GB-920434-A (GB)
Title: Improvements relating to window assemblies
Inventor: STEADMAN JOHN
IPC: B60J1/14
Filed: 1960-11-30
Abstract: 920,434. Vehicle windows; draught excluders. AUSTER Ltd., and W. W. SMALL. Nov. 30, 1961 [Nov. 30, 1960], No. 41084/60. Class 20 (3). [Also in Group XXV] A vehicle window assembly comprises an openable panel 8 hinged to a vertical frame member 5 and an inwardly projecting weather strip 16 fitted into a glazing strip of rubber &c. bounding the window aperture, the strip 16 being co-operable with the panel 8 in the closed position. The weather strip comprises a rubber flap 16 carried by a metal base 19, Fig. 5, grippingly held within the open channel 3 of the glazing strip. The ends of the base 19 are secured to ends of the frame member 5 by a brass block 26, Fig. 5, secured to the base 19.
Patent GB-1541851-A (GB)
Title: Electrically regenerated ion exchange apparatus
IPC: C08J5/22
Filed: 1976-10-04
Abstract: The electrical efficiency of an electrically regenerated ion exchange system is improved by using elongated ion exchange members having a continuous ion exchange phase that is more conductive in the exhausted form than it is in the regenerated form.  Preferably, the system includes anion exchange members that extend through the wall of the demineralization compartment closest to the anode but do not extend through the wall of the demineralization compartment closest to the cathode, and cation exchange members that extend through the wall of the demineralization compartment closest to the cathode but do not extend through the wall of the demineralization compartment closest to the anode.
Patent GB-924246-A (GB)
Title: Purine derivatives and their preparation
IPC: C07H19/16
Filed: 1959-12-03
Abstract: The invention comprises 2-amino-6-chloro-9-21,31, 51-tri-O-acylb -D-ribofuranosylpurines and the preparation thereof and of 6-chloro-9-21,31, 51- tri-O-acyl-b -D- ribofuranosylpurine by treating 21,31,51-tri-O-acylguanosines or 21,31,51-tri-O-acylinosines with a chlorinating agent, e.g. phosphoryl chloride. 21,31,51-Tri-O-acetyl- and -benzoyl-guanosine and -inosine are prepared by treating guanosine or inosine with acetic anhydride or benzoyl chloride, in the presence of pyridine.  6-Mercapto- and 2-amino-6-mercapto-9-b -D-ribofuranosylpurines are prepared from the corresponding 6-chloro-tri-O-acyl compounds by thiation followed by deacylation.
Patent GB-1237866-A (GB)
Title: Pigments
Inventor: CLARK DAVID WILLIAM HAROLD
IPC: C09C1/00
Filed: 1967-09-08
Abstract: 1,237,866. Nacreous pigments; artificial pearls. MAY & BAKER Ltd. 6 Sept., 1968 [8 Sept., 1967], No. 41182/67. Headings C4A and C4X. Nacreous pigments comprising a plurality of thin, clear, homogeneous layers of TiO 2  or ZrO 2  or alkaline earth metal titanate, each layer interleaved with a thin, clear, homogeneous layer of an oxide or hydroxide of Al, Mg/Al, Ca/Al, Sr/Al, or Mg, such that the refractive index of the former layers exceeds that of the latter by at least 0À05, are claimed per se. A move general process for preparing these and similar pigments comprises applying to a support firstly a release layer which is wetted by composition (I) below and which is insoluble in compositions (I) and (II) but soluble in a release solvent, and then, alternately, uniform layers of (I) a hydrolysable titanic or zirconic ester or alkaline earth metal titanic ester and (II) a compound capable of hydrolysis by water vapour to a clear layer of inorganic oxide or hydroxide or a mixture thereof, such that after hydrolysis of each hydrolysable layer and, if necessary, heating, the refractive index of layers (I) exceeds that of layers (II) by at least 0À05, hydrolysing each layer after application with water vapour, releasing the multi-layer product from the support by dissolution and, if required, heating the layers before or after pigment release to obtain the required refractive index disparity. Apart from the oxides and hydroxides listed above the process is also applicable to those of Si, Ba/Al, Ca, Sn/Na, and Li/Ti; this layer may also contain up to 10% by wt. of the hydrolysable Ti, Zr or alkaline earth metal titanate ester. The release layer may be polyethylene glycol, cellulose diacetate, or polyvinyl pyrrolidone. Each pigment layer may be 0À01-1Á thick, preferably 0À03-0À1Á for white and 0À05-0À3 for coloured pigments. The pigment may be dehydrated by heating to 450 C., and comminuted to 1-70 Á, although particles of 1-2 mm. have certain uses.
Patent GB-1022598-A (GB)
Title: Improvements in or relating to receivers for binary-coded signals
Inventor: CANDLER JOHN ELDRED LINTON
IPC: H04L27/14
Filed: 1963-10-18
Abstract: 1,022,598. Data transmission. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Oct. 20, 1964 [Oct. 18, 1963], No. 41209/63. Heading H4P. To reduce the effects of noise in a receiver in which a limiter feeds a frequency discriminator, the limiter is supplied by the received signal and by a locally generated signal having the same frequency as one of those to which the discriminator responds. In one embodiment, Mark and Space signals are received in frequency shift form. One frequency, say f 2 , is filtered out; the resultant gaps in the f 1  signal contain noise which may simulate f 1  at the discriminator. To prevent this a signal of frequency f 2  is added to the filtered signal, the added signal having an amplitude less than that of the received signals f 1  but greater than the noise level. The limiter which receives the combined signal, responding to the predominating signals, provides clean square signals at f 1  and f 2 . The received signals may be amplitude modulated. Reference is also made to a twinplex system. The local oscillator.-Fig. 3 comprises a transistor oscillator fed by a stabilized voltage, derived across Zener diode 11 from a D.C. source at 10, and by a varying voltage, derived by rectification of the filter output f 1 , fed in at 6. The amplitude of the generated oscillations f 2  thus varies within the limits specified above.
Patent GB-1028983-A (GB)
Title: Automatically regulated weighing conveyor
IPC: G01G23/365
Filed: 1964-10-09
Abstract: 1,028,983. Automatic conveyer feed control. WIBAU WESTDEUTSCHE INDUSTRIE UND STRASSENBAU-MASCHINEN G.m.b.H. Oct. 9, 1964 [Oct. 31, 1963], No. 41246/64. Heading G3R. As described,a vibrator 9 feeds loose material continuously from a hopper on to a balanced conveyer 1 the load on which adjusts the setting of a potentiometer 3. A second potentiometer 4 is set to correspond with a desired conveyer load, and hence rate of feed, and the voltages from the two potentiometers are applied to separate windings of a polarized relay 5 which causes operation of a reversible motor 6 in the appropriate direction to correct the load on the conveyer by adjusting a transformer 7 to vary the D. C. energization of vibrator 9. A tapped potentiometer 10 arranged in the supply to potentiometer 4 permits fine adjustment of the load maintained on the conveyer during operation. Potentiometers 10a-10n, associated with similar systems maintaining desired loads on further conveyers (not shown), are ganged to potentiometer 10 so that the total feed of the conveyers may be adjusted without varying the proportion of the total supplied by each conveyer.
Patent GB-1237149-A (GB)
Title: Method of fastening anchoring elements to rods or wires for use in prestressing concrete structures
Inventor: BRANDESTINI ANTONIO
IPC: B28B23/06
Filed: 1968-08-29
Abstract: 1,237,149. Concrete posts. A. BRANDESTINI. 29 Aug., 1968 [19 Sept., 1967], No. 41289/68. Heading E1B. [Also in Division F2] Reinforcement wires of a thin-walled prestressed tubular spun-cast concrete body, such as a pylon or mast, are provided with steel anchorage plates, each plate 3 being fastened to the respective wire by passing the wire through a hole in the plate, forming a protuberance 2 on the wire, and deforming at least a portion of the plate into gripping engagement with the wire whilst thrusting the plate against the protuberance. The deformation takes the form of two semi-circular recesses 4 pressed into the plate, Fig. 1a (not shown), and generates elastic strains in regions A and B so that plate still elastically grips the wire when radially Contracted as a result of tension applied to the wire. As shown in (Fig. 2), the wires are each provided with two spaced anchorage plates at each end, which transmit at least a proportion of the wire tension to the concrete.
Patent GB-1327941-A (GB)
Title: Retrofocas-type super-wide angle objective lens
IPC: G02B13/18
Filed: 1970-08-27
Abstract: 1327941 Lens systems NIPPON KOGAKU K K 27 Aug 1970 [5 June 1970] 41323/70 Heading G2J A lens system has a first divergent group comprising a first pair of divergent components L 1 , L 2 , each comprising a single negative meniscus lens with the convex surface directed towards the object; a first converging component L 3  comprising a single meniscus lens having the convex surface directed towards the object; a second pair of divergent components L 4  and L 5 , each com-  prising a single meniscus lens having the convex surface directed towards the object; and a second convergent component comprising a cemented meniscus lens assembly L 6  consisting of a bi-concave lens, a bi-convex lens, and a negative meniscus lens in that order, and joined together, the concave surface of the assembly and the concave surface of the meniscus both being directed towards the object a second group having an intermediate diaphragm comprising a fifth divergent component L 7 , which is a single meniscus lens having the convex surface directed towards the object; a third convergent component L 8  comprising a cemented lens assembly comprising a bi-convex lens and a divergent lens in that order, joined together and having a convex surface directed towards the object; a fourth convergent component L 9  comprising a single lens having a convex surface directed towards the image a sixth divergent component L 10  comprising a bi-concave lens; and a fifth convergent component L 11  comprising a single meniscus lens having the convex surface directed towards the image and a third convergent group comprising at least one component consisting of a positive single lens having a convex surface directed towards the image. In an alternative construction, lens L 5  may be omitted, lens L 6  may be a doublet consisting of the first two lenses specified above, and lens L 8  may be a single lens. Optical data are given for five examples. The first surface of the first lens may be a revolution-symmetric aspheric surface (optical data given).
Patent GB-1527106-A (GB)
Title: Method of etching multilayered articles
IPC: C23C22/00
Filed: 1975-10-09
Abstract: 1527106 Etching TELETYPE CORP 9 Oct 1975 [10 Oct 1974] 41356/75 Heading B6J A layer of SiO 2  is etched with buffered HF, e.g. HF + NH 4 F, the underlying aluminium layer being passivated by the HF. The passivated layer is then treated with a substantially HF-free solution of NH 4 F to prevent deterioration thereof. Etching of the SiO 2  may be through apertures in a photoresist mask.
Patent GB-909638-A (GB)
Title: Improvements in and relating to methods of counting articles
IPC: G06M1/10
Filed: 1958-12-23
Abstract: 909,638. Counters. SICK, E. Dec. 23, 1958 [Dec. 23, 1957], No. 41447/58. Class 106 (1). [Also in Group XL (b)] Small objects falling in a plane AA are counted by interruptting a light screen formed by sweeping a light beam focused on to the plane at right angles to it. In the arrangement of Fig. 1 light from a source 1 passes through a halfsilvered mirror 6 and is reflected by a curved oscillating mirror 6 on to a plane mirror 1 and parabolic mirror 4 which focuses the light at the plane AA, the rotation of the mirror causing the light to traverse the section of plane AA shown in the Figure. The light then falls on a series of reflectors 5 which reflect it back along its own. path so that it is reflected from a half-silvered mirror to a photo-cell 7. In a modification (Figs. 3 and 4, not shown) the oscillating mirror is replaced by a mirror drum the face of which may be curved to assist focusing at plane AA. In a further arrangement (Fig. 5, not shown) the half-silvered mirror is avoided by providing a lens which focuses the light source through a hole in a flat mirror. Figs. 6 and 8 show the construction of such a device in detail consisting of a base plate 15 with a bottom lid 17 and a top lid 18 finned for cooling purposes. Light from source 24 passes through lens 30 and is reflected by mirrors 33, 45, a polygonal rotating mirror 48 driven by motor 51 and parabolic mirror 60 finally passing out of an aperture 63 in the housing. Light reflected from the triple reflector system strikes mirror 44 and is again reflected to a photo-diode 71 in the lower housing. The circuit comprises a cathode follower, the grid potential of which is controlled by the drop across the photo diode, followed by a rectifier and CR circuit connected to the grid of a triode amplifier in the anode circuit of which is the counter. This amplifier is cut off until the input to its grid has fallen to its former value after a time determined by the resistance-capacity circuit.
Patent GB-888375-A (GB)
Title: Improvements in or relating to electrical instruments
IPC: H01H53/015
Filed: 1958-03-14
Abstract: 888,375. Moving coil instruments. MINNEAPOLIS - HONEYWELL REGULATOR CO. March 14, 1958 [May 28, 1957], No. 41529/60. Divided out of 888,374. Drawings to Specification. Class 37. The subject-matter of this Specification is identical with that described in Specification 888,374, but the claims are concerned with an electrical instrument incorporating the pivotal mounting claimed in that Specification.
Patent GB-1356229-A (GB)
Title: Method for isolation of antithrombin from animal material
IPC: C07C15/08
Filed: 1972-09-07
Abstract: 1356229 Recovering antithrombin KABI AB 7 Sept 1972 [8 Sept 1971] 41588/72 Heading A5B [Also in Division C3] A method of recovering antithrombin from an antithrombin-containing animal source comprises bringing the source into contact with a sulphated carbohydrate, separating the carbohydrate from the source and eluting antithrombin from the separated carbohydrate. The carbohydrate is suitably a polysaccharide. The animal source is preferably blood plasma or a Cohn fraction.
Patent GB-1327478-A (GB)
Title: Process for the preparation of shell moulds
IPC: B22C9/04
Filed: 1970-09-01
Abstract: 1327478 Mould for turbine wheels HOWMET CORP 1 Sept 1970 [8 Sept 1969] 41743/70 Heading B5A A shell mould for the metal casting of a turbine wheel which includes radially extending blades 22, Fig. 1, cast integrally with a hub, is moulded by forming a disposable air foil pattern either of blades connected to a rim 20, or preferably of blades and rim integrally injection moulded, of wax or of various stated thermoplastics, which is continuously rotated repeatedly alternately to immerse the pattern in a tank of slip composition, and then to coat the slip in a stucco spray to form a mould shell, the pattern being removed by melting or flashing at elevated temperature e.g. 1500 at 2100F., prior to or after joining the shell to interfitting mould portions 60, 74, Fig. 9, defining the hub and a pouring spout for the metal. The slip composition and spray coating may comprise respectively ceramic material and alundum or zircon, or alternatively graphite flour with colloidal graphite and graphite particles. A plurality of patterns, each on a sleeve 30, Fig. 3, interengaging at 34, 36, are mounted on a rotary shaft 38, Fig. 2, for the immersion and coating. The shaft 38 may be mounted on a conveyer which is engaged during movement to effect rotation of the shaft 38 as it travels through immersion, drainage, and coating stations. Alternatively, the rotating shaft 38 and a spray hood 44 are relatively horizontally displaceable to effect the spraying, and the shaft 38 and an immersion tank 42 are relatively horizontally and vertically displaceable, to effect the alternate spray coating and immersion. After removal of the drum and sleeves 26, 30 the pattern is removed by heating when the shell may simultaneously be cured. Each shell on the sleeves 30 may be separated during moulding of the shell by thin discs of rigid paper or plastics abutting the sleeve portions 33, or alternatively adjacent shells may be separated prior to or subsequent to removal of the pattern by cutting through to the portions 33 by a wire brush or grinding wheel during rotation of the shells. The mould part 60, dimensioned to span an open end of the mould to define the hub, is separately formed either, for repeated use, from metal or graphite preferably cored for the passage of water coolant, or as a disposable ceramic shell by compression of injection moulding, slip casting, or by alternate dip coating and stucco coating of a disposable pattern. The mould part 60 and a pouring spout 74, which may similarly be moulded of ceramic material, are joined to the air foil shell by ceramic clips, or by ceramic adhesive e.g. sodium silicate metal phosphate, at surfaces 70, 66, and 80, 76, which adhesive may be. cured by heating simultaneously with any uncured ceramic mould parts and the removal of disposable patterns from any or all of the mould parts. After preheating the assembled mould, the turbine wheel is cast by pouring molten metal into the stationary or rotating mould.
Patent GB-1436391-A (GB)
Title: Electric suction cleaner
IPC: A47L9/20
Filed: 1973-09-05
Abstract: 1436391 Vacuum cleaners MITSUBISHI DENKI K K 5 Sept 1973 [5 Sept 1972(2)] 41807/73 Heading A4F [Also in Division B1] A vacuum cleaner has separable motor part 10 and filter housing part 20 between which is gripped a filter unit 44 comprising a rectangular plated filter element 54 and 56; said unit has a slider 70 which is manually actuated in downstream vent 48 to contact vibratable U shaped inserts 60 set between the pleats of the filter element; external adhering dust is thereby removed. Unit 44 may be removed for cleaning or cleaned in situ. The cleaner has a primary mesh screen 42 upstream of the pleated filter 54 and 56, dust flap 24 and door 34 whereby dust may be retained or removed from below the primary screen.