baber/WOPTO huggingface dataset:
Patent GB-886058-A (GB)
Title: Improvements in or relating to double interlaced television synchronising apparatus
Inventor: HOWE JOHN HENRY
IPC: H04N5/06
Filed: 1959-12-30
Abstract: 886,058. Television. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. July 21, 1960 [Dec. 30, 1959], No. 44230/59. Class 40(3). Field synchronising pulses for a (double) interlaced television system are derived from a master oscillator 1 by means of a binary counter 5, which effects division by a factor of two, and a further frequency dividing means 6, which divides by a factor n and supplies feed-back pulses to counter 5 so that the overall division is 2n-1 this factor being the ratio between the master oscillator frequency and the frequency of the field synchronising pulses derived at 8. This arrangement allows the use of a single high division factor unit. such as 6, instead of a chain of (e.g. five) units each of smaller division factor and therefore of stable division ratio, since the overall division ratio (2n - 1) is always odd despite changes in the division factor of unit 6 and interlacing is thus preserved.
Patent GB-1360260-A (GB)
Title: Multilevel pcm system
IPC: H04L27/08
Filed: 1971-09-23
Abstract: 1360260 Digital transmission; ternary systems STANDARD TELEPHONES & CABLES Ltd 23 Sept 1971 44389/71 Heading H4P In a multilevel modulation system, inputs signals are scrambled before conversion to multilevel, e.g. binary to ternary and the reverse process is performed at the receiver (see Fig. 1, not shown). Between the transmitter and receiver a first circuit, e.g. a filter selects part of the frequency band and produces a signal to control the gain or frequency characteristic of a second event also in the transmission path. The scrambler 8 may be a nine stage shift register having two feedback paths from fifth and ninth stages into gate 21 also receiving input signals. An exclusive OR gate 23 receives outputs from first and eighth stages and feeds a divide by three circuit 24, clocked by generator 24, the output from which is passed into the reset of the first, and set of the last shift register stage The function of this is to select patterns of 28-1 bits being recycled before a pulse pattern is repeated. The descrambler is of the feed forward type illustrated in Fig. 3 (not shown).  The first and second circuits may be combined in a repeater one or more repeaters, each having a filter, forming part of the system. The characteristics of the filter depend on the type of transmission path, e.g. coaxial cable, in which case the filter will select only the upper end of the frequency band. Output from the filter controls the gain or frequency characteristic of an amplifier 12.
Patent GB-941619-A (GB)
Title: Improvements in or relating to methods of, and modulation and demodulation circuit arrangements for, frequency translation of alternating current signals
Inventor: SARAGA WOLJA
IPC: H03C1/60
Filed: 1960-12-29
Abstract: 941,619. Hall plate modulators. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Dec. 21, 1961 [Dec. 29, 1960], No. 44605/60. Heading H4L. A modulator and demodulator for phaseshift single sideband systems each include a Hall plate. Modulator (Figs. 3 and 5). The carrier signals C 1 , C 2  are applied to coils C x , C y  to produce a magnetic field for the Hall plate in the form of a rotating magnetic field vector in the x y plane of magnitude C 0  at an angle ¢#-#ot with the x-direction. (C 1 = C 0  sin #ot, C 2  = C 0  cos #ot). The information signals S 1 ,S 2  which are in quadrature [S 1  =a k  cos (# k t+# k +γk) S 2  = a k  sin (# k t+# k +γ k )] are applied across the diagonals d 1 , d 2  respectively, and produce a rotating electric current vector of magnitude a k  and at an angle # k t+# k +γ k  to the diagonal d 1 . The output Hall voltage is in the Z-direction and proportional to c 0  and a k  and to the sine of the angle between the c 0  and a k  vectors, i.e. to sin (# 0 #k)t (the other terms being constant phase terms). This output voltage therefore corresponds to the single sideband output. The +ve and - ve signs apply if the current and magnetic vectors rotate in the opposite and same directions respectively. The Hall plate may be cylindrical (Fig. 6, not shown), and the signals generating the rotating magnetic field need not be in quadrature. Further, both the magnetic and electric rotating fields may be generated by more than two phase displaced fields, three being specifically referred to with respect to Fig. 6. Demodulator (Fig. 5b). The input signal is applied as an input current in the Z-direction. One frequency component is taken as a k  cos (w 0 w k )t. Carrier signals C 1 , C 2  again produce a rotating magnetic field in the x-y plane. The output Hall voltage vector must, therefore, also lie in the x-y plane. The magnetic and the Hall vector are fixed with respect to an x-y plane and considered as rotating with the magnetic vector. The magnetic vector has a fixed magnitude C 0  but the Hall voltage vector will be pulsating and can be represented as the sum of two vectors H 1 , H 2  rotating in opposite directions with angular velocity (# 0 # k ). With reference therefore to the fixed x-y plane one of the vectors H 1 , H 2  rotates with angular velocity (# 0 #k)+# 0  = 2 # 0 # k  and the other with angular velocity (# 0 # k ) - # 0  = # k , these output signals being taken from the diagonals d 1 , d 2 . The high-frequency components 2# 0 +# k  are filtered out and the others phase-shifted and combined in circuits (not shown) to obtain the reconstituted modulating signal.
Patent GB-1048577-A (GB)
Title: Tipping converter with stirrup-type mounting and interchangeable converter bodies
IPC: C21C5/46
Filed: 1963-11-12
Abstract: 1,048,577. Metallurgical converters. DEMAG A.G. Nov. 12, 1963 [Nov. 23, 1962], No.. 44711/63. Heading F4B. A tilting converter comprises a converter vessel 1 supported on carrier pins 2 in releasable bearings 3a housed in a stirrup member 3, which is itself pivoted in a converter stand 24 on trunnions 4 such that the vessel can be lowered on to a trolley 20 and removed by upswinging the stirrup member. During normal operation, Fig. 1, the horizontal carrier pins and trunnions axes lie in the same vertical plane containing the longitudinal vessel axis y, the carrier pins axis being upwardly displaced such that when the vessel is in the lowered position, Fig. 3 (not shown), the carrier pins axis is offset relative to the trunnion axis by the horizontal distance a. Alternatively, the trunnion axis may be displaced to the left or right along axis x<SP>1</SP>. The stirrup member is locked to the vessel by a pneumatically, hydraulically or screw-threaded spindle-operated pin 13 engaging the vessel recess 1a, the pin movement being aligned with the intersection of the trunnion axis and the longitudinal vessel axis to facilitate tilting of the vessel through the trunnion-mounted gearwheel 14, Fig. 2 (not shown). In order to remove the vessel 1 from its mounting, the pin 13 is retracted and the stirrup member is swung upwards thus lowering the vessel on to a transverse movable platform 21 of the trolley 20. The bearing caps 3a may then be removed and the vessel wheeled away. The stirrup mounting may be used with a further drive (not shown) to impart a swinging motion to the vessel. Figs. 1 and 3 show the carrier pins housed in a splitbearing block incorporating balls, rollers or like friction reduction means. Figs. 4-7 (not shown) illustrate alternative releasable bearing arrangements, each having an associated retaining member. In Fig. 4, the bolt-mounted bearing block 43 has a trapezoidal base located in a similar trapezoidal mounting recess 35, the slope of the inclined base face 45a being shallower to provide a clearance gap. The construction in Fig. 5 comprises a raised neck 3h housing a plunger 50 which engages the pin 51 in a corresponding carrier pin recess. In a further embodiment, Fig. 6, the carrier pin is retained in a semicircular stirrup member seating by two horizontally opposed plungers 60 actuating shaped pins 61. In both the latter constructions, a shell bearing, 52 and 62, respectively, is incorporated. Finally, in Figs. 7 and 8 (not shown), the carrier pins are retained by a bearing-brass sleeve 72 provided with a lug 73 secured to the mounting 3 within a semi-circular recess 30 by a bolt 80.
Patent GB-1532980-A (GB)
Title: Systems for measuring the distance of interference sources from one end of a glass fibre
IPC: G01N21/00
Filed: 1975-10-30
Abstract: 1532980 Optical range finding SIEMENS AG 30 Oct 1975 [30 Oct 1974] 44796/75 Heading H4D A system for measuring, using reflected light from a laser, the distance to any reflective inhomogeneities, or, the other end, from the free end of a glass fibre light guide includes a pulsed laser for transmitting a pulse into the free end of the glass fibre, an optical receiver for detecting reflected pulses reappearing at the free end, and timing circuitry for measuring the echo time and displaying such or a value thereof converted into distance units. A laser diode 6, Fig. 1, emits pulses via an attenuator 5 (if required for short fibres), first focusing optical system and beam splitter 2, e.g. a 50% reflector, the reflected component from which may be detected and used for the echo time measurement or may be absorbed in a surface 16. The light from beam splitter 2 is focused at 3 onto the face of a glass fibre 11, which is, to avoid reflections, immersed in liquid 9, behind quartz plate 8, and located in tubular or prismatic guide 10. Reflections from the end of the fibre and any inhomogeneities intermediate the ends thereof which may thereby be detected in the fibre with reference to their measured distance to the irradiated end, are fed via beam splitter 2 through optical system 4 to photoelectric detector 7. A laser pump circuit 12 (see Fig. 3, not shown) is triggered from a pulse generator which also controls the start input of a counter 14 which is clocked at high speed by clock generator 15 and is stopped on receipt of an echo signal from detector 7. A table is provided showing experimentally derived reflection factors of the end reflection with the other end of the glass fibre in contact with various materials.
Patent GB-1182369-A (GB)
Title: 0,7-Naphthyridine Derivatives
IPC: C07D471/04
Filed: 1968-09-20
Abstract: 1,182,369. Nitrofuran derivatives. STERLING DRUG Inc. 20 Sept., 1968, No. 44942/68. Heading C2C. Novel 1 - R 1  - 1,4 - dihydro - 3 - (COOR) - 8 - [2 - (5 - nitro - 2 - furyl) - Y] - 4 - oxo - 1,7- naphthyridines, wherein each of R and R 1  is H or C 1-6  alkyl and Y is and wherein the naphthyridine ring is optionally substituted by, e.g., C 1-6  alkyl, C 1-6  alkoxy, C 1-6  alkanoylamino, amino or hydroxy groups, and cationic salts thereof, are prepared by reacting a 1 - R 1  - 1,4 - dihydro - 3 - (COOR)-8- methyl (or ethyl) - 4 - oxo - 1,7 - naphthyridine with 5-nitro-2-furaldehyde or a functional derivative thereof in the presence of an acidic condensing agent, and, if required, dehydrating a compound obtained (when the process is conducted in the presence of a C 1-6  alkanoic acid) where Y is -CH(OH)-CH 2 - to obtain a compound where Y is -CH = CH-, alkylating a compound where R 1  is H to obtain a compound where R 1  is C 1-6 , alkyl, esterifying a compound where R is H to obtain a compound where R is C 1-6  alkyl, hydrolysing a compound where R is C 1-6  alkyl to obtain a compound where R is H, or obtaining a cationic salt of a compound where R is H. A compound in which the naphthyridine is substituted by a C 1-6  alkanoylamino group may be hydrolysed to the corresponding amino compound. 1,4 - Dihydro - 1,5,6,8 - tetramethyl - 4 - oxo- 1,7 - naphthyridine - 3 - carboxylic acid is prepared from 5-amino-2,3,6-trimethylpyridine via the following intermediates: diethyl N-(2,5,6- trimethyl - 3 - pyridylamino) methylene malonate, ethyl 1,4 - dihydro - 5,6,8 - trimethyl - 4 - oxo 1,7 - naphthyridine - 3 - carboxylate, ethyl 1,4- dihydro - 1,5,6,8 - tetramethyl - 4 - oxo - 1,7- naphthyridine - 3 - carboxylate and 1,4 - dihydro - 1,5,6,8 - tetramethyl - 4 - oxo - 1,7 - naphthyridine-3-carboxylic acid. Pharmaceutical compositions having antibacterial, antiviral and anthelmintic activity, for oral or parenteral administration, comprise one of the above novel naphthyridines together with a carrier.
Patent GB-1466905-A (GB)
Title: Ball-and-socket joint
IPC: F16C11/06
Filed: 1974-10-22
Abstract: 1466905 Ball and socket joints ISHIKAWA TEKKO KK 22 Oct 1974 [6 Nov 1973] 45678/74 Heading E2F In a ball and socket joint a bearing member 4 of hard resilient plastics material is preformed in one piece and arranged to be pressed into engagement with the inner surface 6 of the socket 2 to enclose the spherical head 15 of the ball stud 3, the joint being hermetically sealed by a closure member 5 and by deformation of an annular shoulder 10 inwardly to cover the marginal portions of the closure member 5. Upon assembly, an annular pocket or space 21 is left near the horizontal radial centre line of the cylindrical head 15, the space containing a suitable lubricant.
Patent GB-1216255-A (GB)
Title: Polymer blend
Inventor: DOWNS GORDON WYLIE
IPC: C08L23/04
Filed: 1968-09-26
Abstract: 1,216,255. Polyethylene compositions. BP CHEMICALS (U.K.) Ltd. 29 Aug., 1969 [26 Sept., 1968], No. 45777/68. Heading C3P. Compositions comprise by weight 95 to 99À9 per cent of a "solution" polyethylene of density at least 0À940 g./cc. and 5 to 0À1 per cent of a "particle" polyethylene of density at least 0À930 g./cc. The polymers may contain up to 5 mole per cent of other α-olefins, particularly C 3-8  α-olefins. The compositions may be prepared by solid or melt blending, and may be moulded to form shaped articles.
Patent GB-1033990-A (GB)
Title: A process for chemical oxidation for aluminium powder, magnesium powder as well as aluminium and magnesium powder alloys
IPC: C23C22/37
Filed: 1963-11-22
Abstract: Aluminium or magnesium powders or their powder alloys are oxidized using a solution of chromic anhydride nitric acid, hydrofluoric acid, and water, at a temperature between room temperature and 70 DEG C. for from 1 to 5 minutes.  The solution may comprise chromic anhydride 150 g., conc. nitric acid 10 to 50 g., hydrofluoric acid 40%. 5 to 25 g., water 1000 ml.  The powder may be a suspension in water, and the solution added whilst stiring. The mixture is then filtered, washed, and dried with acetone.  The solution should have a pH between 5 and 5.5 after use.
Patent GB-1377110-A (GB)
Title: Data processing systems
IPC: G06F9/46
Filed: 1972-10-10
Abstract: 1377110 Data processing systems INTERNATIONAL BUSINESS MACHINES CORP 10 Oct 1972 [16 Dec 1971] 46551/72 Heading G4A In a data processing system of the kind in which access to a resource is obtained by referring to a table of identifiers to resources maintained in the system, provision is made for dynamically extending a resource allocated to a task, after initiation of that task, by adjusting the table relative to that resource. The invention is described as an addition to the IBM (Registered Trade Mark), System 360-370 operating system. An additional I/O unit required for a task is defined in terms of its class and device type, and control blocks (UCB) of which one exists for each I/O device in the system, are searched until one is found for the appropriate class and type of device on which the "volume" containing a specified data set to be accessed is or can be mounted. If a unit having the specified volume mounted thereon is not found by searching the UCB's, an appropriate unit without a mounted volume or with a dismountable volume which is not designated as retained or having passed data sets, or with another dismountable volume, is allocated to the task in that order of preference. When, during the execution of a task, the end of a first volume is reached, information specifying the volume number and device class and type of a volume added to the data set after initiation of the task, is looked up and the UCB's are searched for an appropriate I/O unit as above.
Patent GB-965163-A (GB)
Title: Determining the orientation of a vehicle in inertial space by means of star identification
IPC: G01S3/782
Filed: 1962-12-10
Abstract: 965,163. Space vehicle orientation. GENERAL PRECISION Inc. Dec. 10, 1962 [Oct. 11, 1961], No. 46571/62. Heading H4D. The orientation of a vehicle in space is determined by an arrangement comprising means determining the angular separtions between observed stars, computing means comparing the said determined angular separations with the known angular separations of the stars, logic means thus identifying the said observed stars whose angular separations have been compared with the known angular separations of the stars and means determining the orientation of the vehicles in space by reference to said identified stars. The arrangement may comprise (box 13) a scanning reflector on refractor optical system directing the star images on to a photo-electric detector (e.g. a photo-multiplier) to give outputs representing the azimuth and elevation angles of the detected stars. These outputs are passed to a computer 19 wherein in unit 17 the three dimensional direction cosines of the stars are first calculated to give the angular separations between pairs of the detected stars. The separation angle values so found are compared with values of known stars stored in a memory device 21 to identify the detected stars and provide information for the determination of the vehicle's orientation in space. The detecting system is biased so that only a group of the n brightest stars are detected, the minimum difference between the angular separations of any two pairs of the group, the possible aberration errors due to the vehicle's movement, the optical errors and the altitude and azimuth errors, determining the allowable tolerance in the angle measurement of the arrangement. The detection of two stars alone is not enough to unambiguously identify them and for this a third must be detected. To distinguish planets &c. from stars several means may be resorted to, viz. measurement of their apparent angular diameter, spectroscopic analysis, use of their motion against the star background and measurement of their colour index. All of these methods however are either unreliable or involve the use of unduly complex apparatus. A simpler method after two supposed stars, have been identified, is to check that any third star is in its correct position. If it is not then one of the " stars " it is a planet and the measurement must be repeated with other stars. The third star may be chosen to be of the blue variety and be identified by colour identifying means.
Patent GB-1111069-A (GB)
Title: Stacking arbors for automatic record changers
IPC: G11B17/16
Filed: 1966-10-19
Abstract: 1,111,069. Centre-part gramophone record changer. HERMINE EBNER, [trading as PERPETUUM - EBNER FABRIK FUR FEINMECHANIK UND ELEKTROTECHNIK STEIDINGER & CO. KOMMGES. 19 Oct., 1966 L21 Oct., 1965], No. 46647/66. Heading G5R. A stacking arbor for an automatic record changer comprises a stationary guide member 1 within which is slidably mounted a first body 3 to which three record support arms 2 are pivotally mounted and a second body 16 connected through a coupling sleeve 18 to a driving rod 25, the body 16 having a stepped bore in which is located an extension 19 of the body 3 and a compression spring 21 which tends to push the bodies 3 and 16 apart, the bodies 3 and 16 being locked together after they have moved downwards to drop a record on to the turntable. To drop a record on to the turntable, the body 16 is pulled downwards and since the weight of the body 3 and the stack of records 6 exceeds the force of the spring 21, the body 3 follows the downwards motion of the body 16, the arms 2 engage the edges 42 of the slots 1a in the guide member 1 and are forced to retract inside member 1, the rod 10 secured to the body 3 disengages from the disc 11 and the latter, controlled by the compression spring 13, causes the flexible member 12a to move down a sloping surface of a member 8 secured to guide member 1, thus causing the block 12 to engage at least the second lowest record of the stack but.not the lowest one. The latter, being unsupported, falls on to the turntable 27. As depicted in Fig. 2 (not shown), three balls 20 each movable in a radial bore extending through the wall of body 16 prevent member 3 from rising upwards under the action of spring 21 by the balls engaging the conical surface 19a of the extension 19 on body 3. When the last record has been played, the flanged end of the flexible member 12a engages a flat surface of the member 8 and under these conditions the body 3 is forced upwards by the spring 21, the member 19 forces the balls 20 to the outside of their respective bores and into engagement with the sloping edge 22 of the stationary sleeve 23, thus preventing any further downwards movement of the arm 25, this limitation of the movement of the arm 25 being made to control a mechanism for stopping the turntable.
Patent GB-471408-A (GB)
Abstract: 471,408. Moulding-machines. NICHOLLS CO., Inc., W. H. Jan. 21, 1937, No. 1852. Convention date, Feb. 5, 1936. [Class 83 (i)] A moulding-machine having press and jolt pistons 13, 14 is provided with rollers 37 which are arranged to receive the flask 18 as the pattern plate 17 &c. descend after the mould has been pressed against a head, (not shown), but are held out of contact with the flask during the jolting operation by means of adjustable guides 44 engaging the inner face 46 of the roller supporting levers 33. These are pivoted in adjustable members 29 and have weights 34 to bring the rollers into operative position when the plate 17 is moved into the pressing position as shown. The frames 36 carrying the rollers 37 are shaped to allow the lugs 39,40 to pass.
Patent GB-1210818-A (GB)
Title: Improvements in and relating to compacting machine pneumatic tyres
IPC: B60C1/00
Filed: 1967-10-17
Abstract: 1,210,818. Tyre treads. MICHELIN & CIE (Compagnie generale des etats. Michelin). 17 Oct., 1967 [17 Oct., 1966], No. 47281/67. Headings C3P and C3Q. The tread of a pneumatic tyre for a compacting machine is made from a composition comprising a natural or synthetic elastomer, e.g. polybutadiene, polyisoprene or SBR, and per 100 parts by weight of elastomer at least 50 parts by weight of a non-aromatic oil having a viscosity-gravity coefficient of less than 0.90.
Patent GB-1121856-A (GB)
Title: Improvements in and relating to covers and sheets for mattresses
IPC: A47G9/02
Filed: 1964-11-20
Abstract: 1,121,856. Bed sheets; mattress covers. A. L. STIRLING. 19 Nov., 1965 [20 Nov., 1964], No. 47386/64. Headings A4M and A4S. In a fitted sheet or mattress cover, which may be of waterproof material, the corners are cut away to form rounded, rightangled concavities 2, co-operating buttons 5 and elastic loops 8 being provided at the ends of the concavities to draw the sheet into a shallow hood for a mattress with rounded parts 4 of the concavities within the corners of the mattress. In a modification the buttons and loops are replaced by a tape, preferably elastic, secured across the ends of each concavity.