baber/WOPTO huggingface dataset:
Patent GB-1310381-A (GB)
Title: Infiltrated cemented carbides
IPC: B22F3/26
Filed: 1970-04-07
Abstract: 1310381 Sintered infiltrated cemented carbides GENERAL ELECTRIC CO 7 April 1970 [16 April 1969] 16418/70 Heading C7D Cemented refractory metal carbides of groups IV, V and VI such as WC, TiC, TaC bonded with e. g. up to 20% volume Fe, Co or Ni are chemically or electro-chemically etched to remove at least part of the binder metal and then infiltrated with a different metal or alloy such as Cu, Ag, Au, Ni-Cr, Ni-Al, Co-Al, Co-Cr, Cu-Si or Ni or Co alloys with Nb, Ta, Cr, Mo, W. The conventionally sintered cemented carbide is leached in boiling HCl or H 2 SO 4  and then fired e. g. at 1100 C. in H 2  or a carburizing atmosphere. Infiltration is then effected in a reducing or carburizing atmosphere, the infiltrant preferably being saturated with the carbide e. g. WC prior to infiltration. Leaching may remove all the original binder or only a surface layer.
Patent GB-109879-A (GB)
Title: Improvement relating to Kinematograph Shutters.
Inventor: WARDLEY REGINALD
IPC: G03B9/10
Filed: 1916-11-16
Abstract: 109,879. Wardley, R. Nov. 16, 1916. Kinematograph apparatus. -A shutter for a kinematograph projector comprises two apertured disks a, b secured at a distance apart on a common shaft c with the apertures a<2>, b<2> of the disks in register. The shutter is placed with one disk in front of the lens and one behind it so that the light beam is completely cut off by rotating it through half the angle necessary with a shutter comprising one such disk only.
Patent GB-1128238-A (GB)
Title: A method and a device for aseptic removal of liquid from a web of packaging material
IPC: A47L11/34
Filed: 1966-04-14
Abstract: 1,128,238. Drying sterilized webs. TETRA PAK A.B. 14 April, 1966 [26 April, 1965], No. 16436/66. Heading F4G. Apparatus for the aseptic drying of sterilized webs 1 comprises a convergent passage 8 leading to a nozzle 9 located close to the web surface to direct a high-velocity aseptic gas stream from a fan 5 towards the web surface at a comparatively small angle and in counterflow thereto, and a curved guide member having an edge adjacent the web to receive liquid beads 4 blown off the web by the gas stream and to guide them, propelled by the stream to a receptacle 17. The sterilized gas is recirculated. In a modification, Fig. 4 (not shown), both blowing and sucking are utilized to remove the droplets from the web. The flow of sterilized air produced by the output nozzle of a first tube is utilized as an ejector to create a vacuum in a slot of a second tube to draw the droplets therethrough and combine with the air and moisture flow to the collection receptacle.
Patent GB-938180-A (GB)
Title: Improvements in and relating to the cooling of dynamo-electric machines
Inventor: RICHARDSON PHILIP
IPC: H02K3/24
Filed: 1960-05-10
Abstract: 938,180. Cooling dynamo-electric machines; securing coils for dynamo-electric machines. C. A. PARSONS & CO. Ltd. May 10, 1961 [May 10, 1960], No. 16439/60. Class 35. In a dynamo electric machine having its rotor liquid cooled, further cooling is provided by a series of columns of cooling fluid, each column having a portion of its length in a conductor slot to receive heat generated in the conductors and another portion of its length cooled by the liquid circulating through the rotor, the columns being positioned to make use of centrifugal forces acting on portions of fluid in the column of different density to produce circulation within the column. As shown in Fig. 1 a turbo-generator rotor 1 cooled by water or oil circulating through passages 2 formed in the rotor teeth between conductor slots 3, is provided with a series of columns 7 containing a cooling fluid for effecting the transfer of heat from conductors 6 embedded in the rotor slot 3 to the rotor 1. Circulation of the cooling fluid in the two limbs 7a, 7b of each column is caused by centrifugal forces and is in a direction indicated by the arrows. The cooling fluid may be liquid or a gas such as hydrogen, helium or air, and the system may be closed or open. In the embodiment of Fig. 2 (not shown) and Fig. 3 each column is constituted by a passage 7a in the conductors, a radial passage 7b formed in the rotor face forming a side of the slot 3 and passages 7c, 7d interconnecting 7a and 7b and passing on the underside of slot wedge 9 and the underside of a supporting pad 10 respectively. In the embodiment illustrated in Figs. 4, 5 (not shown) a spacing member having radially extending passages formed therein, constituting the limbs of the cooling columns, is interposed between the faces of the rotor forming the sides of the slot and the insulation of the conductors in the slot. The cooling columns, Fig. 6 (not shown), and Fig. 7 may open into the rotor surface and by suitably shaping the inlet and outlet openings of the column to and from the rotor face, impact heads and suction heads can be produced. In a further embodiment, Fig. 8 (not shown), and Fig. 9, a passage 2 through which cooling fluid circulates to cool the rotor is located underneath the slot 3 and has a radial extension 2a which extends into the slot between two stacks of conductors 6a, 6b. The columns 7 for the cooling fluid are formed by partitions 13 which extend in the axial direction in zig-zag fashion. Passage 7a of a column is formed by a space 14 formed between partition 13 and the conductor stacks, whilst a passage 7b is formed by a space 15 between the partition and extension 2a. Connecting passages 7c, 7d are formed by slots 13a, 13b. The surfaces over which the cooling fluid flows may be finned or machined to increase the surface area. Specification 16986/1914 is referred to.
Patent GB-727298-A (GB)
Title: Strip feeding device
IPC: B41J11/28
Filed: 1953-06-15
Abstract: 727,298. Typewriters &c. STANDARD REGISTER CO. June 15, 1953, No. 16469/53. Class 100 (4). A pin type strip-feeding device has reciprocably-mounted pins which can be withdrawn or extended simultaneously. The pin-carrying body 1 has a key 3 securing it to a shaft 2 on which it is longitudinally adjustable, with a latch engaging notches 6. The pins 7 are slidably mounted in grooves 8 of the body 1 and are connected by wires 16 to a knob 10 in holes 14 in which ends 15 of the wires engage. When the knob 10 is turned counter-clockwise, the wires take the position shown in Fig. 5, with the pins 7 extended, but, on turning the knob 10 clockwise, the wires 16 are wound about the hub 11 of the body 1 thus withdrawing the pins. The knob is held in either position by a latch and can be detached from the hub 11 for servicing, by removing a securing nut 13. When the knob is removed, the wires are held in proper spaced relation by an anchoring ring 24 which is positioned over the ends 15 of the wires 16 adjacent to the inner face of the knob 10. Specification 727,006 is referred to.
Patent GB-311574-A (GB)
Title: Improvements in transformer radiators
IPC: H01F27/02
Filed: 1928-06-07
Abstract: 311,574. British Thomson-Houston Co., Ltd., and Dumas, R. June 7, 1928. Headers for the radiators cooling oil &c. surrounding transformers &c. are made with transverse perforated stiffening partitions 2 securing the inner ends of the tubes 1, connecting to the main tank, these tubes extending through the end plate 4 and all joints being welded. The header may be made in one piece, Fig. 4, for bending into shape with side and end walls ready for welding to the tube-plate. Other methods of making are described in which one or both end plates 4, 8 are separately welded to a sheet forming, when bent, the other sides. Specification 287,624 is referred to.
Patent GB-1386302-A (GB)
Title: Telephone switching system
IPC: H04Q3/54
Filed: 1972-04-11
Abstract: 1386302 Automatic exchange systems GTE AUTOMATIC ELECTRIC LABORATORIES Inc 11 April 1972 [12 April 1971] 16735/72 Heading H4K The marker apparatus described in Specification 1,382,308, is modified so as to reduce the possible delay and the variations in the delay between the completion of a connection and the receipt by called and calling parties of ringing "tone". To this end the twenty AND gates αBCH1- 20, which each have one of their inputs connected to a BC link of the line matrix and another to an associated AB link of the line matrix, as described in the above Specification, are provided with a third "ring phase" input. There are three possible "ring phases" A, B, C and the gates αBCH1-20 and the 120 terminating junctions TJ are divided into three corresponding groups A, B, C. Each "ring phase" consists of two seconds ringing followed by four seconds silence and the phases are produced using an interrupter such that in succesive two second periods, ringing tone is applied to terminating junctions in groups A, B and C successively. One second before a group of junctions, e.g. group A are to have ringing tone applied to them, a two second long enable pulse is applied to the "ring phase" leads of the corresponding group of αBOH1-20 gates, e.g. an enable pulse is applied to the phase A lead (Fig. 4), the enabling pulse ending approximately one second before ringing is due to end in the corresponding group of junctors. Hence when the marker apparatus is performing a path indentification through the line matrix from the called line to the terminating junctors, only those free terminating junctors which are due to have ringing tone applied within one second will have their idle test leads IT marked. A selected path from a called to a calling subscriber will therefore contain such a terminating junctor and hence the ringing signal will commence a short time after the connection is completed. If, however, the path selection is unsuccessful, a sequence control "SS control" enable gates L1, L2 which cause all three groups of ring phase leads to be simultaneously enabled. A second attempt to establish a connection is then made by the terminating marker. For details of the exchange and the marker operation in determing free paths attention is directed to the above mentioned Specification. Specifications 3,293,368, 3,646,368 and 3,691,309 are also referred to. Reference has been directed by the Comptroller to Specication 1,053,347.
Patent GB-1041463-A (GB)
Title: Light-sensitive diazo material
IPC: G03F7/105
Filed: 1963-04-29
Abstract: 1,041,463. Photographic diazo materials. MINNESOTA MINING & MANUFACTURING CO. April 29, 1963 [April 27, 1962], No. 16770/63. Heading G2C. Photographic material comprises a base sheet carrying a light-sensitive composition comprising a diazo compound and an acid-base indicator. Alternatively, the diazo compound and indicator may be combined in a single compound. The material gives a visible image directly on exposure to light. The diazo compound may be a diazonium salt, a diazo resin (e.g. the condensation product of p-diazo-diphenylamine and formaldehyde) or a diazo oxide. Indicators specified are metanil yellow, 4-phenylazodiphenylamine, resazurin, quinaldine Red, Methyl Orange, Bromophenol Blue, alizarin, Cresol Red, Phenol Red, Methyl Yellow, Orange IV: Easin Yellow and phenolphthalein. Alternatively, the metanil yellow salt of a diazo resin may be used. The support may be a lithographic plate of aluminium which may be surface treated, e.g. by cleaning in aqueous trisodium phosphate followed by treatment with phosphotungstic acid, or as described in Specification 815,471.
Patent GB-389446-A (GB)
Title: Improvements in or relating to gramophone record discs
IPC: G11B3/70
Filed: 1931-06-09
Abstract: 389,446. Gramophone records. BODENSTEIN, M., 1, Pressgasse, Vienna. June 9, 1931, No. 16789. Convention date, June 10, 1930. Void [Published under Sect. 91 of the Acts]. [Class 40 (ii).] Gramophone-record labels are made of foils of metal, " colours or the like," whereby damage to the label and warping of the record disc are prevented. The labels are affixed by an adhesive or by pressing or embedding.
Patent GB-540876-A (GB)
Title: Improvements in or relating to polariscopes
IPC: G01J4/04
Filed: 1939-06-09
Abstract: 540,876. Polariscopes &c. PARNUM, D. H., and AITKEN, I. M. E. June 9, 1939, Nos. 16900 and 20988. [Class 97 (i)] In a polariscope, polarimeter &c. the light beam is divided into two parts passing separately through polarizers having a wide angle, for example 90 degrees, between their planes of polarization, and alternate impulses from the two beams are applied to a photo-electric cell or other light sensitive device for end point determination ; an amplifier may be interposed between the light sensitive device receiving the outputs and the indicating &c. instruments. Fig. 1 shows a construction using a lamp S fed with direct current, and having a rotating slotted disc D at any position between the lamp and analyzer A, but preferably before the polarizer P. The polarizer P may comprise two elements arranged to divide the beam into parts and polarizing them in perpendicular planes, and the disc D may have two rings of slots passing the parts alternately. The analyzer A may be rotatable in association with a divided circle C for measurement, or quartz wedges, respectively fixed and slidable across the beam, may be used ; the output may be received by a photo-electric cell PC, the current from which is amplified by an amplifier 13 and applied to an indicating instrument I. The positions in the beam of the polarizer P and analyzer A, with their associated parts, may be interchanged. Fig. 5 shows a construction wherein polarization of the parts of the beam is effected by two separated nicols N 1 , N 2 , the beam being divided and re-directed to the tube T by mirrors M 1 ...M 4 , and the parts being alternately passed by a rotating slotted disc D. The circuits of the amplifier 13 may be tuned for the frequency of light variation, and may, by known methods, produce greater sensitivity of indication as the zero or minimum reading is approached. The indicator I may be replaced by a recorder, or by a signalling or control device. Specification 456,286 is referred to
Patent GB-458104-A (GB)
Title: Improvements in or relating to ornithopters
IPC: B64C33/00
Filed: 1935-06-12
Abstract: 458,104. Ornithopters. COCHRANE, A. S., Stondon Manor, Brentwood, Essex. June 12, 1935, No. 16950. [Class 4] In an ornithopter flapping motion is imparted to the wings by means of compressed air which is forced into and withdrawn from flexible tubes incorporated in the wing structure. As shown, the wings 3 are vibrated by air forced through tubes 4, 5, 6 from cylinders 7, 8 driven from an engine 2. The wings are connected to the fuselage by ball and socket joints or by helical springs. A clutch may be provided so that either or both the wings and an airscrew may be driven and the wings may be provided with valves.
Patent GB-1529331-A (GB)
Title: Winding mechanism
IPC: B66D1/52
Filed: 1976-03-02
Abstract: 1529331 Controlling winches CLARKE CHAPMAN Ltd 22 Feb 1977 [2 March 1976] 16954/75 Heading B8B A winding mechanism for lifting and lowering a load relative to a surface subject to elevational variations, comprises a winding drum 10 driven by pivot and second reversible motor 12, 20, the motor 12 driving the drum 10 directly whereas the motor 20 is drivingly connected to the drum through a unidirectional over-run device 14, the motor 20 also having means selectively operable to eliminate at least the majority of turning resistance imposed by the motor 20 on the drum 10. The operable means may comprise an idling setting on a control valve if the motor 20 is hydraulic or a clutch if the motor 20 is electric. The motor 12 is a compensating motor to continually bias a line on the drum 10 during said elevational variations and the main motor 20 superimposes its drive, through a pawl and ratchet device 14, on to the drum 10, already influenced by the motor 12, for lifting and lowering operations. In the embodiment of Fig. 4 (not shown) a messenger drum and line are provided, the line being secured to a moving surface from or to which a load has to be moved by the main cable. A transmitter associated with each drum sends a signal to an error detector which produces a corrected output signal to control the main winch drum compensating motor.
Patent GB-476950-A (GB)
Title: Improvements relating to multi-chamber grinding mills
IPC: B02C17/06
Filed: 1936-06-18
Abstract: 476,950. Ball or tube mills. PONTOPPIDAN, C. June 18, 1936, No. 17011. [Class 59] A multi - chamber grinding - mill is provided with one or more discharge passages connected by valve-controlled openings with one or more of the chambers of the mill and leading to one end of the mill, so that all or part of the charge in each of the chambers in question may be discharged through the passage by opening the appropriate valve or valves and rotating the mill. As shown, the compartments 4, 5 and 6 of the mill are separated by screens 7, 10 and 8, 11 respectively and a screen 9 in the chamber 6 screens the discharge outlet 3. Valves 14 ... 17 may be opened to admit passage of the charge from one compartment to the other and valves 18 ... 20 communicate with a longitudinal passage 22 whereby the contents of any chamber may be discharged through outlet 3. A valve 21 in the chamber 6 permits the charge in this chamber to be discharged through the outlet 3. The outlet may be covered with a sifting arrangement comprising circular sieves 23, 24, Fig. 2, the sieve 23 permitting the material ground and broken balls to pass through whilst discharging the balls to an outlet 25 and the sieve 24 permitting the ground material only to pass therethrough to outlet 26, the broken balls being discharged to outlet 27. The balls are then delivered to hoppers 28.. 30, Fig. 1, and the charged weighed before being inserted through manholes into their respective compartments.
Patent GB-1048007-A (GB)
Title: Improvements in or relating to oil burning heaters
Inventor: HAWKINS DAVID LAURENCE
IPC: F23D3/00
Filed: 1964-04-24
Abstract: 1,048,007. Wick burners. L. G. HAWKINS & CO. Ltd. April 15, 1965 [April 24, 1964], No. 17011/64. Heading F4T. The upper end of the outer wick tube 6, Figures not shown, of a long drum burner has an inward restriction 14 which bears against the wick to reduce the amount of oil spilt should the burner be overturned and two longitudinal ribs 13 are formed on the inner surface of the outer wick tube 6 or on a sleeve 11 secured by spikes to the wick. The wick is raised and lowered by a spur-wheel 9 engaging a row of slots 10 in the wick sleeve and the pressure of the spur-wheel keeps the ribs 13 in sliding contact with the outer wick tube.
Patent GB-1337325-A (GB)
Title: Electrostatic reproduction
IPC: G03G9/13
Filed: 1971-05-25
Abstract: 1337325 Electrostatic image developers A B DICK CO 25 May 1971 [25 May 1970] 17033/71 Headings C3P and C3Q  Toner concentrates for use with compatible carriers to provide liquid developer compositions for reversal toning of latent electrostatic images carriers to provide liquid developer compositions comprise (1) pigment particles, (2) a heatreactive hydrocarbon resin binder, (3) a liquid diluent having a high volume resistivity and (4) a phospholipid. The pigment may be carbon black or a dyestuff, and may be added as a rubber base dispersion, e.g. containing cyclized rubber, in a high boiling solvent. The binder may be a heat-reactive cyclopentadiene resin derived from petroleum fractions. The diluent may be a paraffinic or aromatic hydrocarbon. The preferred phospholipid is lecithin. The preferred carriers are aliphatic hydrocarbons. Examples describe concentrates comprising hydrocarbon resin, lecithin, paraffin oil and xylene together with (1) carbon black and (2) a dispersion of carbon black and cyclized rubber in a solvent, the products being diluted with aliphatic hydrocarbons.
Patent GB-169025-A (GB)
Title: Improvements in or relating to the manufacture of chlorinated derivatives of toluene
IPC: C07C309/39
Filed: 1920-06-23
Abstract: By the chlorination of toluene-p-sulphonic acid or monochlorotoluene-p-sulphonic acid in aqueous solution, a mixture of 2.5-dichloro- and 2.5.6.-trichloro-toluene-4-sulphonic acids is produced, from which the trichloro body is precipitated by neutralization with alkali, leaving the dichloro compound to be recovered by evaporation of the mother-liquors.  Instead of the free acids, their soluble salts may be used as starting material. On hydrolysis, the products yield 2.5-dichlorotoluene and 2.5.6-trichlorotolene respectively.
Patent GB-967924-A (GB)
Title: Photographic objective of variable focal length
IPC: G02B15/14
Filed: 1963-05-01
Abstract: 967,924. Variable focal length objectives. CARL ZEISS-STIFTUNG, [trading as C. ZEISS [firm of]]. May 1, 1963 [May 10, 1962], No.17145/63. Heading G2J. In a variable focal length objective having two outer convergent lens groups A, D, and two inner dispersive lens groups B, C, which are relatively displaceable, the front dispersive lens group B has at least three elements of which the rear one is a convergent meniscus concave towards the rear. Preferably the air space immediately in front of this menisus element is between -0.05 times and -0. 30 times the focal length of the dispersive lens group B and has the shape of a meniscus concave towards the rear. Moreover the radii of the surfaces bordering this air space are each between the -0. 50 times and -2. 00 times the focal length of the dispersive lens group B. In addition the difference between these radii is numerically less than the thickness of the air space. Preferably also in this dispersive lens group each element is bent in such a way that the refractive power of the front surface is greater than the refractive power of the rear surface. The other dispersive lens Group C may consist of a meniscus element convex towards the rear. Optical data are given for one example of the objective shown.
Patent GB-287367-A (GB)
Title: Mechanical striker for attaching to fishing rod
IPC: A01K91/10
Filed: 1927-06-28
Abstract: 287,367. Porter, F. June 28, 1927. Automatic striking-apparatus.-An automatic striking-apparatus for attachment to a fishing rod comprises a spring D, carrying a grooved wheel E, which is held by a pivoted wire trigger-piece F in the set position shown in Fig. 2. The line is passed over the pin G on the trigger F and completely round the wheel E by which it is gripped. When a fish bites, the line causes the trigger to release the spring D which then straightens out and jerks the line inwards.
Patent GB-1427487-A (GB)
Title: Electrical connector
IPC: H01R4/24
Filed: 1974-04-19
Abstract: 1427487 Sleeve connector K C ALLISON 19 April 1974 [31 Aug 1973] 17169/74 Heading H2E To connect in pairs the web-separated insulated conductors of two 2 wire cables (Fig. 1, not shown), springy metal C-section sleeves 26, 28, with co-planar longitudinal flanges 62, 64 on each limb, with flared and lipped 70 wire-entry end 68 and restricted opposite end 66, with inwardly projecting integral four-prong locks 74, are mated with respective deformable sheaths 30, 32, having closed end parts 98, 100, coplanar longitudinal flanges 94, 96 on each limb, and serrations at the open end to engage lip 70 on the sleeves, the sheaths being later held in compartments between separators 112, 114 in heat-shrinking plastics cover 34. The prong nearest the mouth of the sleeve in each lock is extra long and rounded towards the mouth to pass an inserted wire while restricting withdrawal. The two cables are inserted each with one wire in each sleeve, and crimping force is applied to cover 34, the prongs penetrating the cable insulation to contact the conductors while lips 62, 64 and 94, 96 grip the webs of the cables between the conductors. The complete assembly is then warmed to cause the cover to contract. Complete connectors may be mounted spaced side-by-side between double adhesive tapes for supply to a crimping machine (Fig. 11, not shown).