baber/WOPTO huggingface dataset:
Patent GB-237217-A (GB)
Abstract: 237,217. Schneider et Cie. July 18, 1924, [Convention date]. Addition to 176,763. Sights and methods of sighting.-The electromagnetic devices, described in the parent Specification, which enable the corrections in angle of training and angle of sight due to the speed of target to be determined, are modified, and a device is provided for applying a correction for the drift of the projectile. The invention is shown diagrammatically applied to the training correction. The brushes 21, 22 of the magneto are fixed in the centre of the neutral zone of the commutator, and the magneto circuit includes, in addition to the voltmeter 30 and rheostat 26, 27. two rheostats i, h and l, p, engaged respectively by contacts g, k adapted to be moved a distance proportional to f<2>, the time of flight of the projectile. The values and arrangment of the rheostats and other parts of the circuit are such that the deflection of the pointer 29 of the voltmeter is proportional to the training angle correction, being proportional to each of the factors To allow for the drift of the projectile, the zero of the voltmeter, represented by the counterindex 29<1>, is moved by a solid cam C by an amount which is a function of the angle of sight and the height.
Patent GB-710254-A (GB)
Title: Improvements in or relating to slipping clutch attachments for machine tools
IPC: B23B31/38
Filed: 1950-09-28
Abstract: 710,254. Tapping attachments; chucks. THOMSON, A. S. Sept. 17, 1951 [Sept. 28, 1950], No. 23740/50. Class 83 (3) A slipping clutch attachment for machine tools comprises a casing 7 having a cylindrical surface engaged by two clutch elements 14, 15, one of which is urged towards the other by resilient means 17, and an oil reservoir 28 in the interior of the components for lubricating the clutch faces. The attachment, which is for drilling, tapping or reaming, has a socket 5 in which the tool-holding adapter 7 may be secured by segmental keys 8 which are pressed into grooves 10 by a sleeve 11. The grooves have a clearance space behind the keys to allow a small degree of float when a tap or die is picking up a thread. The clutch is adjusted by a threaded cap 20. Drive is transmitted from the socket 5 through the squared end of a shaft 21 which is splined to engage a resilient block 18 and the clutch element 14. The shaft 21 is also formed with oil grooves 24 communicating with the oil chambers 28 in the clutch members. At the front of the attachment a chuck is secured by a cotter 33 and comprises two screw-operated floating driving jaws 34 to grip the square shank T1 of a tap T, and four centring jaws 36 closed by a ring 38. A cast iron sleeve 27 assists in maintaining axial alignment of the parts.
Patent GB-1471962-A (GB)
Title: Dihydropyridine amines
IPC: C08L101/00
Filed: 1974-04-10
Abstract: 1471962 Imino-pyridine derivatives CIBAGEIGY AG 10 April 1974 [11 April 1973] 23790/75 Divided out of 1471961 Heading C2C Novel compounds have the Formula I wherein R 1  is an optionally substituted alkyl, cycloalkyl, aryl or heterocyclic radical Z 1  is =NH or -NH 2 , Z 2  is =NR 2 , -NHR 2 , -NR 3 R 4 , -OR 5  or -SR 6 , wherein each of the groups R 2 , R 3  and R 4 , which may be the same or different, is a hydrogen atom or an optionally substituted cycloalkyl, aryl or heterocyclic radical or an alkyl radical which may be substituted and if substituted contains at most 6 carbon atoms or R 3  and R 4 , together with the nitrogen atom to which they are bonded, can form a 5-membered or 6-membered ring, R 5  is a hydrogen atom or an alkyl, cycloalkyl, aryl or heterocyclic radical, R 6  is a hydrogen atom or an alkyl, aralkyl, cycloalkyl, aryl or heterocyclic radical, Z 3  is =NR 1  or -NHR 1  wherein R 1  is as defined above, Y is -CONH 2  or -CN, and A is a dihydropyridine ring with the proviso that one of the radicals Z 1 , Z 2  and Z 3  contains a nitrogen atom attached to ring A by a double bond. The compounds of Formula I are obtained by treatment of a corresponding quaternary pyridinium 2-halide with a nucleophilic agent in an alkaline medium (Examples 1 to 4 and 8). These starting materials are in turn prepared by reaction of a phosphoryl halide with the corresponding cyanoacetic amide in chloroform (Examples 5, 6, 7 and 9).
Patent GB-602276-A (GB)
Title: Improvements in composite aluminum-alloy sheets
IPC: B32B15/01
Filed: 1945-09-14
Abstract: A slab of aluminium alloyed with copper 4.2 per cent, manganese 0.6 per cent, and magnesium 1.5 per cent having a relatively high yield strength, a Brinell hardness of 42 and a marked resistance to fatigue but not possessing substantial resistance to abrasion in handling is bonded to a slab comprising aluminium alloyed with silicon 0.7 per cent, magnesium 1.25 per cent, and chromium 0.25 per cent, which alloy has a Brinell hardness of 40, and is resistant to abrasion. Between the basic slab and each associated slab is placed a layer of commercially pure aluminium 0.020 inches thick and containing less than 1 per cent silicon.  The assembly is heated and rolled down to the desired thickness, this working serving to bond the layers into an integral sheet.
Patent GB-334353-A (GB)
Title: Improvements in photographic sound recording
IPC: G11B7/00
Filed: 1929-08-03
Abstract: 334,353. Owens, F. H. Aug. 3, 1929. Optical apparatus. - Relates to photographic sound-recording apparatus in which, whilst the record is being produced, the acoustically-varying light affects a light-sensitive device, which is connected to means such as an amplifying telephone circuit for enabling the working of the recording apparatus to be supervised. According to the invention, the lightsensitive device is so located as to receive light directly from the source of sound-modulated light. In the arrangement shown, a microphone F, which is affected by the sound to be recorded, is connected to a valve amplifier H, in the output circuit of which is a telephone receiver G opening into a chamber J. The latter conveys the sound from the receiver G to a second microphone E, which is connected in circuit with a recording lamp A, adjacent to a slit 22 past which a photographic film 25 is moved. A. photo-electric cell N is mounted at one side of the lamp in a housing O supported by the lamp casing 20, and is consequently affected directly by the fluctuating light of the lamp. The cell N is connected in the input circuit of a valve S, the output of which operates one or more telephones P', by means of which the operation of the recording apparatus can be audibly observed.
Patent GB-352294-A (GB)
Title: Improvements relating to cinematograph cameras
IPC: G03B19/18
Filed: 1930-08-09
Abstract: 352,294. Kinematograph cameras. ALLDRIDGE, R. S., 15, Wellington Road, Harrow, Middlesex. Aug. 9, 1930, No. 23923. [Class 97 (i).] In apparatus having a lens turret to enable lenses of different focal lengths to be rapidly interchanged, the camera front is provided with an aperture to receive the rear ends of the lens barrels or extensions thereof, and the barrels are mounted to slide axially in the turret so that any one of them can be pushed into the aperture when brought into register therewith. The turret consists of a disc 10 mounted on a boss 12 on the camera front 14 and carrying a number of lenses, of which only one is shown, the lens barrel 28 being slidable in a bush 30 fixed in a hole in the disc and having a rearward extension 32 fitting a hole 34 in the front 14. The barrel may be moved in or out of the hole by hand, but is preferably actuated by a nut 38 rotating freely on the bush 30 and engaging threaded projections 46 on the barrel, these projections being seated in slots 44 in the bush. The rearward movement of the barrel is limited by the engagement of a shoulder 48 thereon with an adjustable screwed-on ring 50. The lens assembly shown is of the kind described in Specifications 352,292 and 352,293, comprising two parallel objectives 54 for colour photography, and is provided with a septum 52, extending nearly to the shutter 56, for separating the two images on the film. With this arrangement the rear surface of the extension 32 is made flush with the rear edge of the septum, so that the turret cannot be rotated until the septum is withdrawn clear of the aperture 34.
Patent GB-1273626-A (GB)
Title: Polyurethane foams
Inventor: LEE TIMOTHY CHARLES PHILIP
IPC: C08J9/40
Filed: 1969-05-10
Abstract: 1,273,626. Coated polyurethane foam. DUNLOP HOLDINGS Ltd. 4 May, 1970 [10 May, 1969], No. 23924/69. Heading B2E. [Also in Division C3] Polyurethane foam having integral portions of different softness is produced by impregnating a portion of a flexible polyurethane foam with a plasticizer for the polyurethane. Suitable plasticizers are an organic phthalate, an organic phosphate, a chlorinated hydrocarbon or a hydrocarbon wax. Particularly suitable plasticizers are dinonyl phthalate, diallyl phthalate or dioctyl phthalate. The portion of the foam may be impregnated by partially immersing foam in a solution or emulsion of plasticizer or by applying a surface layer of the plasticizer emulsion or solution on the foam and allowing it to permeate into the foam, or by injecting the emulsion or solution plasticizer into the foam. Impregnation may be facilitated by alternately compressing and relaxing the foam in contact with the plasticizer. In a preferred embodiment the degree of impregnation is controlled by first impregnating the foam with a surfactant, e.g. sodium stearate in the portion where softness is desired.
Patent GB-1005594-A (GB)
Title: Method of and apparatus for drying or calcining gypsum
Inventor: KNAUF ALFONS NICHOLAUS
IPC: C04B11/036
Filed: 1962-06-21
Abstract: <PICT:1005594/C1/1> A tunnel kiln for drying or calcining gypsum comprises an endless plate conveyer or grating 1 with vertical side bars 2, heated by gases produced in a combustion chamber 4 and mixed with returned gases in mixing chamber 5, the gases passing laterally through ports 8 and 9 in the kiln walls and through the gypsum.  A suction chamber 17 has a fan 11 returning the heating gases to the chamber 5 through a pipe 13 and a fan 14 discharging a proportion of these gases.  Additional air is supplied to chamber 5 by a fan 10. The gypsum is arranged with a lower layer 3 and upper layer 3e of fine material enclosing vertical layers 3a-3d decreasing in size in the direction of flow of the heating gas. Different types of gypsum are said to be produced in the single calcining operation.
Patent GB-276170-A (GB)
Title: Improved sound reproducer for talking machines or wireless telephony
IPC: H04R7/14
Filed: 1926-09-29
Abstract: 276,170. Ferguson, T. T. H. Sept. 29, 1926. Diaphragms; loudspeakers. - A soundreproducer for use with talking machines or as a loud-speaker comprises a sector-shaped pleated diaphragm a, the material at the radiating point b of the pleats being held in a light rigid fitting d and the radial sides of the sector being stretched away from each other by light springs # connected respectively to the outer ends of arms e, e and p, p, the inner ends of which are secured to the fitting d. The pleats at their radiating point b are held in the slotted upper end of the stylus carrier u bv rubber blocks t, held in the fitting d by a sliding plate rand screws s. The arms e are connected together near their outer ends by an intermediate plate g, Fig. 3, so as to form a slot h. A plate i with bent-up ends k is pivoted on a screw j in the slot h and its ends k are adapted to swivel about a pin l fixed in the bent-up ends n of a second plate m adapted to be screwed within the lid of the talking machine. The arms p, p are retained in their open position by a pin q on the fitting d engaging one of the arms, this arm being sprung laterally and both arms turned on their pivots o, o when it is desired to close the diaphragm. When employed as a loud-speaker, the diaphragm may be mounted directly on the base plate of the apparatus without any hinged arm, the springs c being connected to any suitable points on the base plate or to projections thereon. The electromagnetic actuating unit is then connected directly with the part u by means of a rod.
Patent GB-1429553-A (GB)
Title: Draglines
IPC: E02F3/46
Filed: 1973-05-21
Abstract: 1429553 Draglines L R VIDAL 21 May 1973 [23 May 1972] 24125/73 Heading B8E In a dragline comprising a tower 1 from which walls 2 radiate to define bunkers having outlets 3 formed in the tower, a rotatable platform 4 on the tower supporting a cantilevered jib 5 and a scraper bucket 10 connected to a return winch 12 by a return cable 9 and connected to a scraper winch 15 by a scraper cable 13, the operation of the dragline is controlled automatically such that when the bucket 10 reaches a point C at the end of its scraping run a sensor A is operated to send a signal to a logic element L 1  which opens a contact (34, Fig. 6) to stop winding of the scraper winch 15 and then, with delay, closes contacts 51, 52 to initiate unwinding of scraper winch 15 and winding of return winch 12. This results in the bucket being carried towards the end of the jib 5 for a further scraping cycle. Other sensors are provided and are coupled to the logic element L 1  and a further logic element L 2  which controls rotation of the platform 4 so that complete automation of the dragline is obtained.
Patent GB-1496026-A (GB)
Title: Apparatus for the removal of moisture from material in continuous web form
IPC: D21F1/52
Filed: 1975-06-04
Abstract: 1496026 Drying webs by suction WP EVANS & SON Ltd 22 Oct 1975 [4 June 1975] 24165/75 Heading F4G [Also in Division D2] A suction box 11 for use in dewatering a web of material has an apertured supporting belt 14 and a plurality of bands 21 interposed between the apertured surface of the suction box and the upper run of the supporting belt, the bands 21 being apertured and these apertures being in line with those 13 in the suction box and 17 in the belt. The belt is supported on rollers 15, 16 and the bands 21 extend around roller 16 and (in this embodiment) around a semi-cylindrical skid 24. Individual drive means may be provided for the belt and bands but generally this is not necessary as they are moved by the wire screen which supports the web. The bands are preferably laminated with a layer of PTFE or similar material in contact with the suction box supported by a carrier layer, for example, of fibre-reinforced vinyl. Alternatively, the bands may be of stainless steel, the apertured surface of the suction box consisting of PTFE or similar material. Specification 831,975 is referred to.
Patent GB-1508307-A (GB)
Title: Gas meter
IPC: G01F3/22
Filed: 1974-05-31
Abstract: 1508307 Gas meters COMPTEURS SCHLUMBERGER 23 May 1975 [31 May 1974] 24171/74 Heading G1R [Also in Division F2] In a gas meter comprising a main housing member 10 and a detachable housing member 16 clamping between them the edge of a diaphragm 42 to define two separate metering chambers 34, 36 which are alternately connected to an inlet 48, 50 and an outlet 72, 74, 76 in a third housing member 46 via valve member 56 driven by movement of the diaphragm 42 through linkage 104, 106, 118, one chamber 36 communicates with the valve member 56 via a duct, part of which 85 is integrally formed in the main housing member 10 and part of which 88 is integrally formed in the detachable housing member 16, the two parts 85, 88 meeting at a plane which is inclined to the clamped edge of the diaphragm (e.g. at 75 degrees as shown) such that tightening of the detachable housing member 16 to the main housing member 10 by screws 20 increases the contact pressure between them so sealing together the two parts 85, 88 of the duct. An O-ring 90 may enhance the seal. As shown the meter has another detachable housing member 18, diaphragm 44, chambers 38, 40 and valve member 64, the valve member 64 communicating with the chamber 40 via a duct (not shown) similar to the duct 85, 88. In addition to moving the sliding valve members 56, 64, the rotary movements of link members 116, 118 caused by movement of the diaphragms 44, 42 are transmitted by connecting rods 120, 122 and cranks 124, 126 to an output shaft 128 which drives a conventional indicator mechanism 144.
Patent GB-1157042-A (GB)
Title: Semiconductor Device Assembly
Inventor: BOYER JOHN L
IPC: H01L23/40
Filed: 1967-05-24
Abstract: 1,157,042. Semi-conductor devices. INTERNATIONAL RECTIFIER CORP. 24 May, 1967 [11 July, 1966], No. 24187/67. Heading H1K. A semi-conductor device incorporating a wafer 16 is mounted on a support stud 10 to which an inverted insulating cup 30 is attached by bolts 34, 35, a conducting stud 50 extending through an aperture 32 in the base 31 of the cup 30 to contact the upper surface of the device. Spring washers 56-58 urge the stud 50 on to the device. In the embodiment a silicon wafer 16 is situated between molybdenum expansion plates 17, 18 in a hermetically sealed can comprising two conducting diaphragms 13, 14 and an insulating cylinder 15. Central portions 19, 20 of the diaphragms 13, 14 are pressed into good electrical contact with the wafer 16 by the studs 10, 50. Cooling fins 70-73 having upturned central spacing flanges 80-83 are soldered to an extension of the support stud 10. The wafer 16 may contain one or more junctions.
Patent GB-646414-A (GB)
Title: Improvements in and relating to fluorescent luminous bodies
IPC: H01J65/08
Filed: 1948-09-15
Abstract: 646,414. Luminescent materials. EGYESULT IZZOLAMPA ES VILLA-MOSSAGI R.T. Sept. 15, 1948, No. 24197. Convention date, May 31, 1946. [Class 39 (i)] Fluorescent material is excited to fluorescence by the radiation of hydrogen isotope of atomic weight 3 (the so-called tritium). A vessel made with a fluorescent wall of transparent or translucent material may be filled with this gas. The vessel may be a glass ball having its inner surface coated with fluorescent material and enclosing a smaller ball, the space between the balls being filled with tritium gas. Alternatively two oppositely-disposed plane surfaces are each coated with a fluorescent coating and the space between them filled with tritium gas. The distance between the two fluorescent walls may be up to a hundred times the length of the free path of the electrons. In an example a vessel has flat walls of 1.3 metres length of side, spaced apart by 1 cm. and coated on their inner surfaces with a white fluorescent mixture of zinc sulphide and zinc cadmium sulphide, the vessel being filled with tritium gas at a pressure of 1 mm. In another construction a luminous screen is coated with a mixture comprising a solid compound of tritium and fluorescent material in the proportion of 30 mg. of tritium to 1 gr. of fluorescent material. This is distributed over a surface of from 100 to 200 sq. cm. In a modification luminescent material is suspended in a transparent compound of tritium, for example paraffin containing tritium. Alternatively, a luminescent material (preferably organic) may be dissolved in a compound of tritium, e.g. water containing tritium. This solution, or the suspension above-mentioned, is enclosed in a vessel acting as the luminous body, or it may be applied to a luminous screen. Tritium may be introduced into the luminescent material as a chemical constituent thereof, for example a hydrogen atom in any organic luminescent material may be replaced by this isotope of hydrogen. In order to protect the surrounding space against harmful effects from the radiation, the source of light may be enclosed in a lead glass container 1 mm. thick, or it may be covered with a lead glass disc.
Patent GB-1132450-A (GB)
Title: Transmitting unit for facsimile communication system
IPC: H04N1/40
Filed: 1966-06-01
Abstract: 1,132,450. Photo-electric facsimile transmitter. XEROX CORP. June 1, 1966 [June 7, 1965], No. 24472 /66. Heading G1A. [Also in Division H4] In a facsimile transmitter an auxiliary photocell receives light directly from a scanning light source which provides a control signal to reduce high frequency fluctuations in the source intensity and a further light source intensity control signal is generated from the video signal and is indicative of the reflectance of the background of the document being scanned. Light from the screen of a scanning CRT 4 is projected by mirror 5 on to a document 1 carried on a moving conveyer and is reflected to a photo-multiplier 14 providing the video signal. An auxiliary photo-multiplier 25 receiving light directly from the CRT screen - which light varier due to uneveness of the phosphor over the screen - provides a signal which together with a signal generated in unit 20 indicative of the reflectance of the background of the document control the intensity of the scanning spot of the CRT. A tuning unit 9 injects a marker pulse into the video-signal in synchronium with the horizontal scanning. Manual adjustment of the vertical position of the spot is provided. The unit 20 of Fig. 1 is shown in detail in Fig. 2 in which the video-signal from the photo-multiplier 14 before transmission is amplified (35), cleared of h.f. noise and variations due to the background (51) and converted to binary form (53), with optional inversion (55), and injection of the marker pulse (57). A h.f. noise signal for subtraction from the video signal in circuit 51 is obtained from the auxiliary photo-multiplier (41, 43). A background level signal for similar purposes is obtained from the video signal by background readers 37, 39 upon instruction by unit 59 analysing the video signal. The intensity of the CRT is controlled in accordance with the h.f. noise and background intensity of the document by signals from 45 and 40.
Patent GB-661009-A (GB)
Title: Improvements in or relating to a printing device
IPC: B41L47/02
Filed: 1948-09-20
Abstract: 661,009. Printing surfaces. ADDRESSOGRAPH - MULTIGRAPH CORPORATION. Sept. 20, 1948 [May 8, 1948], No. 24566/48. Class 100 (ii). [Also in Group XV] A printing device for attachment to an index sheet or card C comprises a printing member P and a retaining member R on either side of the card C, the printing member P having clips with parts 9, 10 normal to the member P and parts 11, 12 extending inwardly and in spaced relation with the opposite side of the card C and the retaining member R having recesses 13, 14 under the clip parts 11,12 and projections 15,16 and 17,18 either side thereof to prevent displacement. The member P is embossed with type characters T and the clip ends are passed through holes 7, 8 in the card C, the member R, which is preferably of transparent flexible material, being flexed to pass under the clips. The clips on the member P may be formed as in Fig. 4 by bending over extensions of the plate, as in Fig. 6, by cutout parts bent up and over, or by slitting the ends, the central part being bent over. The printing plate P and retaining member R may be removed from one card C and transferred to another, by flexing the member R.
Patent GB-886254-A (GB)
Title: Improvements in manifolding machines
Inventor: TAPERELL GEOFFREY LESLIE
IPC: B41J15/20
Filed: 1958-07-30
Abstract: 886,254. Typewriters etc.; ink ribbon mechanisms. SMITH & SON (ALACRA) Ltd., W. H. July 30, 1959 [July 30, 1958], No. 24584/58. Class 100(4) In the manifolding machine described in Specification 848,797 in which a record and carbon strip assembly is fed to a positively rotated platen 10 by pin-wheels 11a, 12a and in which the carbon strip is released by a mechanism 100 for a much slower feed by the frictional grip thereon guide means 101, 103 are provided to support the assembly on both faces over substantially the whole distance between the feeding devices 11a, 12a and the platen 10. The guides 101, 103 are extensions of the lower and upper guides provided at the pin wheels while guides 108, 109 on the out feed side of the platen support only the edges of the stops, the upper guide 108 being hinged to allow their release.