baber/WOPTO huggingface dataset:
Patent GB-643554-A (GB)
Title: Improvements in or relating to high frequency induction heating equipment
Inventor: EADON-CLARKE CHRISTOPHER ERSKI
IPC: H05B6/04
Filed: 1948-04-28
Abstract: 643,554. Transformers. STANDARD TELE. PHONES & CABLES, Ltd. April 28, 1948, No. 11596. [Class 38 (ii)] [Also in Group XI] For matching the impedances of the load and tank circuit, in a H.F. induction heating apparatus, a transformer with relatively movable primary and secondary is provided to vary the coupling in the required manner. In the example shown, the secondary is rigidly mounted within the frame 1 and is composed of several turns of metal strip 7 with cooling fluid tubes 11 attached, the primary 5 is movable in and out of the secondary on the bus-bars 14, by which contact is made with the tank circuit by sliding contacts. A hand wheel 20 rotating an insulated threaded rod 6 effects movement of the structure supporting the primary. Alternative primary tappings are provided at 18 and the more suitable tapping may be selected by means of a plug 16. Specifications 558,169, [Group XXXVII], 615,150, 627,747 and 632,111, [Group XI], are referred to.
Patent GB-794229-A (GB)
Title: Hydroxyaryl-substituted acid-esterified acid esters and method of making the same
IPC: C07C69/52
Filed: 1956-04-17
Abstract: Esters are prepared by reacting (1) an hydroxyaryl-substituted acid which is the condensation product of a phenol and an aliphatic keto acid having its carbonyl group adjacent to the terminal carbon atom; and (2) an ester of an alcohol and an aliphatic acid having from 10 to 36 carbon atoms containing at least one radical of the group consisting of hydroxyl or epoxy. Suitable hydroxylated or epoxidized long-chain acid esters are those of vegetable oils or fish oils, e.g. castor oil, oiticica oil, corn oil, cottonseed alcohols as pentaerythritols, glycols, methyl, ethyl and butyl alcohols, or those prepared from e.g. a mixture of phthalic anhydride, soya bean oil acids and glycerol, also the mixed esters of a polylol, a polycarboxylic acid and a long-chain monocarboxylic acid.  Suitable hydroxyaryl-substituted acids are the condensation products of levulinic acid and phenol, substituted phenols or mixtures thereof. The phenols may be substituted with alkyl groups or halogens. Examples are given of the preparation of esters from 4,4-bis(4-hydroxyphenol)-pentanoic acid and (1) castor oil, (2) blown castor oil, (3) epoxidized butyl oleate, (4) epoxidized soya bean oil having an equivalent weight to epoxide of 260. Specifications 768,206 and 790,373 are referred to.ALSO:Esters are prepared by reaction of (1) an hydroxyaryl substituted acid which is the condensation product of a phenol and an aliphatic keto acid having its carbonyl group adjacent to the terminal carbon atom, and (2) an ester of an alcohol and an aliphatic acid having from 10-36 carbon atoms containing at least one radical of the group consisting of hydroxyl or epoxy.  The ester of the aliphatic acid of 10-36 carbon atoms may be a complex product such as an epoxidized alkyd resin prepared from a mixture of phthalic anhydride soya bean oil acids and glycerol. It may be a mixed ester of a polyol, a polycarboxylic acid and a long chain monocarboxylic acid.  In one example an alkyd resin is prepared from glycerol oleic acid and phthalic acid, epoxidized with hydrogen peroxide and is then esterified with 4,4-bis(4hydroxy phenyl) pentanoic acid to give a hard resin having an acid value of 17.1 and a softening point of 80 DEG  C.  In another example the ester, having an acid value of 13.5, produced by the reaction of 4,4-bis(4-hydroxyphenyl) pentanoic acid and castor oil is condensed with paraformaldehyde in the presence of methyl isobutyl ketone and toluenesulphonic acid, to produce thin films, which on heating give a hard tack-free flexible product.  A similar type of product is obtained using epoxidized butyl oleate (equivalent weight to epoxide 410) instead of castor oil. Specifications 768,206 and 790,373 are referred to.
Patent GB-1411512-A (GB)
Title: Image pick-up devices
IPC: H01L29/423
Filed: 1973-03-12
Abstract: 1411512 Charge transfer image pick-up device WESTERN ELECTRIC CO Inc 12 March 1973 [(17 March 1972 18 Dec 1972] 11704/73 Heading H4F A charge transfer image pick-up device comprises an array of electrodes 10 associated with and insulated from a surface of a charge storage medium, different sets, e.g. rows, of the electrodes being alternately biased, e.g. at A1 and A2, during alternate charge integration periods (e.g. fields) so as to collect charge carries in the medium beneath the biased electrodes resulting from an image incident on the medium and then alternately biased at a faster rate to transfer them into a similar storage array through which they are similarly transferred by alternately applying biases at B1 and B2, the information in each line being sequentially read out from a final line array of electrodes 11 by alternately applying biases at C1 and C2 to obtain a video signal at output 12. The array biased at B1 and B2 and the last line of image-sensing array (biased by A2) are shielded from incident radiation i.e. only the top six lines are exposed. The resulting video signal comprises a line interlaced video signal, the charge collected under the three rows coupled to A1 being collected in one field and the charge under the top three rows coupled to A2 being collected in a second field. The composite array of charge transfer devices may be of the "charge coupled" or "bucket brigade" type, the latter type including regions of fixed charge in the storage medium beneath each electrode and mobile charge integration sites being provided. The above sensing array comprises a twophase device driven by conductive paths A1 and A2, three-phase and four-phase devices are described respectively with reference to Figs. 5 and 4 (not shown) and a line image device with reference to Figs. 6 and 7 (not shown).
Patent GB-1359813-A (GB)
Title: Method and apparatus for determining errors during counting of particles
IPC: G01N15/14
Filed: 1973-03-12
Abstract: 1359813 Particle analysing systems CONTRAVES AG 12 March 1973 [29 March 1972] 11713/73 Heading G4D [Also in Division G1] In, e.g. aperture-type blood-cell analysis apparatus the particle-counting-time is divided into two-parts, and the two counts are compared to actuate an error alarm if they differ by more than a predetermined tolerance value. In Fig. 7, not shown, which is substantially self-explanatory the measured volume is defined in known manner by photo-electric sensors monitoring the sample-suction-tube to start and stop a particle-pulse-counter. In addition a further sensor halfway along the tube reverses a forward/backward counter, whose output is monitored to operate an error alarm if the difference exceeds an adjustable tolerance input. Fig. 2 (not shown) illustrates schematically the stages of a conventional binary backwards and forwards counter, wherein the first facer outputs are compared with binary tolerance values in a 4-bit comparator.
Patent GB-201238-A (GB)
Title: Improvements in or relating to governor controlled driving mechanism for gramophones and other apparatus
IPC: G11B17/02
Filed: 1922-04-26
Abstract: 201,238. Graham, E. A. April 26, 1922. Speed - regulating.- A governor controls the driving-gear through a brake, and its spindle a is driven by shaft e through a lost-motion device to avoid the transfer of vibration thereto. A slot g in the sleeve d of the driving spur or worm wheel c is loosely engaged by a pin f in the shaft e.
Patent GB-1114315-A (GB)
Title: Improvements relating to apparatus for collecting or arranging cigarettes
IPC: A24C5/33
Filed: 1965-03-19
Abstract: 1,114,315. Delivering cigarettes in orderly arrangement. MOLINS MACHINE CO. Ltd., and T. ROWLANDS 17 March, 1966 [19 March, 1965], No. 11750/65. Heading A2C. In apparatus for forming a single row of transversely moving cigarettes from two side rows on two conveyers a plough is provided which pushes the cigarettes of one row into the gaps between cigarettes of the other row. Two rows of cigarettes C having mouthpieces M are conveyed on conveyers 1 and 2. The cigarettes on the conveyer 2 are reversed end for end by a device 13 as described in Specification 900,387 and delivered to a conveyer 15. The cigarettes on the conveyer 1 are delivered to flutes 19 of a chain conveyer 14. The conveyer also has alternate flutes 20 having relieved entries to receive cigarettes pushed axially from the conveyer 15. The conveyer 15 comprises links 21 each having a concave surface (27), Fig. 2 (not shown), and a sloped ramp (28) such that a flute is formed between the surface (27) and ramp (28) into which a cigarette rolls after delivery by the device 13. The cigarettes on the conveyer 15 thus become aligned with the flutes 20 of the conveyer 14. Elongated slots 30 in the ramps (28) communicate with a suction chamber 31 in the region where cigarettes are pushed axially by a plough 35 into the flutes 20 of conveyer 14. Short subsidiary flutes 33 are provided at the ends of each link 21 to aid in supporting the cigarettes on the conveyer 14 until transfer of the row to two further chain link conveyers 37 and 38.
Patent GB-752495-A (GB)
Title: Flame detector system
IPC: G08B17/12
Filed: 1954-04-26
Abstract: 752,495. Flame detector. PETCAR RESEARCH CORPORATION. April 26, 1954 [April 28, 1953], No. 11952/54. Class 40 (3). [Also in Group XXXVI] A flame detector uses a thermocouple the heat inertia of which is sufficiently low to enable it to respond to infra-red radiation from the flame modulated at from 3 to 30 cycles per second which is said to be the frequency range predominant in flames. As shown the output of the thermocouple. 2, which will be described later, is fed to the primary of a transformer 6 having a low-frequency response of about one cycle per second. The secondary is connected to a balanced input amplifier stage 10 the output of which is supplied to a high gain amplifier 14 consisting of three cascaded R.C. stages having a band pass of 3 to 30 cycles per second. The output of these stages is then fed to a cathode coupled bi-stable multivibrator which changes from one stable state to another when the input voltage exceeds a certain level and falls back when the input voltage is below the level. Other pulses of length dependent on the time for which the input signal exceeds this level are produced while " noise " is eliminated. The output of the multivibrator is coupled to a diode counting rate circuit 24 which require multivibrator output pulses being differentiated and used to charge a Miller-type integrator. When the pulse rate is high a voltage is developed in the condenser the amplitude of which is directly proportional to applied pulse rate. This integrator is coupled through a cathode follower 28 to a relay 30 operating an indicating device 34. The thermocouple (Fig. 4) consists of two wires 40, 42 respectively of constantin Chromel-P each 0.0008 inch in diameter and having a platinum target 44 one millimeter square and 0.0001 inch thick. The wires are connected at their inner ends to the target plate and at their outer to supporting wires 46, 48 which are formed of material having high thermal conductivity and having a thermal mass high compared with that of the thermocouple. The thermocouple is sealed in an evacuated transparent envelope 50 which may be of quartz glass. In a modification (Figs. 5 and 6, not shown) two couples are mounted in a stainless steel housing one above the other and so arranged as to receive radiation from directions perpendicular to each other, quartz windows being provided. Various reflectors and focusing arrangements may be used (Figs. 7, 8, 9 and 10, not shown).
Patent GB-107470-A (GB)
Title: Improvements in or relating to Road Sweeping Machines and the like.
Inventor: BARNETT WALTER
IPC: E01H1/04
Filed: 1916-08-23
Abstract: 107,470. Barnett, W., and Florendine, J. Aug. 23, 1916. Sweeping-machines; takinq up refuse for removal.-Relates to road-sweeping machines in which the refuse passes over a ridge between two receptacles on its way to the storage bin, and consists in providing a roller on this ridge to prevent accumulation of refuse. Fig. 1 shows the invention applied to the machine described in Specification 101,728, in which a road brush 2 sweeps the refuse into a receptacle 3 fitted with oppositely disposed helical brushes 5 for moving the refuse towards the centre of the machine and over a ridge 9 into the boot 7 of an elevator. The ridge is, according to the present invention, fitted with a roller 10 mounted in a recess 9. The roller is either freely mounted or is driven by means of a chain 11 from the revolving shaft 12.
Patent GB-1165424-A (GB)
Title: Synchronizing Device
Inventor: SAKIC BORIS
IPC: H04J3/06
Filed: 1967-03-14
Abstract: 1,165,424. Multiplex pulse code signalling. BROWN, BOVERI & CO. Ltd. 14 March, 1967 [16 March, 1966], No. 12019/67. Heading H4L. In a synchronizing circuit for a time division multiplex P.C.M. system, a shift register 1 which converts the received code from serial to parallel form for evaluating the data groups is also used to set up a code word used for synchronizing for comparison with the received synchronizing signal to reset the register if the local and the received synchronizing signals do not coincide. The input signal is applied at 12 and the inverted signal at 11, the signal at 12 also being applied via a gate 3 to the input of register 1. The gate 3 is blocked while synchronization is taking place. Clock pulses applied at 4 step the register forward and the clock pulses applied at 5 also control the resetting of the register via gate 6. The synchronizing signal is 0111101111 and the resetting circuit sets the first stage to 1 and the remaining stages to 0, preselected outputs of the register being connected to an OR gate 8 so that the sync. signal appears on the lead 9 and the inverted sync. signal on lead 10 as the register is stepped forward. These signals are compared at 13 with the signals at 11 and 12 respectively so that if synchronization is lost an inhibiting signal is removed from gate 6 and the register is reset, this cycle being repeated until synchronization is recovered. A signal is then fed via lead 17 to open gate 3 to feed the next pulse group into the register, the resetting circuit 7 being cut-off by a circuit not shown.
Patent GB-1169275-A (GB)
Title: Brake Devices, especially for mobile rotary cranes
Inventor: EICHLER HERBERT
IPC: B60T13/36
Filed: 1967-03-15
Abstract: 1,169,275. Fluid-pressure brakes. SCHWERMASCHINENBAU S. M. KIROW VEB. 15 March, 1967, No. 12049/67. Heading F2F. In a compressed-air brake system of a mobile rotary crane, the driver's valve for operating the wheel brake cylinders when the crane is used as a road vehicle is by-passed when it is desired to hold the crane in position, during use as a crane, by a two-way valve. As shown applied to a dual brake system, a pair of two-way valves 8, preferably arranged in juxtaposition in the driver's cab for simultaneous manual operation, is provided to connect a dual brake valve 4, fed by reservoirs 2, to wheel cylinders 5 when in the position shown, but to disconnect the lines 6 from the brake valve and to connect the wheel cylinders 5 directly over lines 9 to the reservoirs 2 when rotated by juxtaposed levers (10, Fig. 5, not shown) to their other positions (Fig. 4, not shown). The invention may also be applied to a system having only a single reservoir supplying all the cylinders 5 (Figs. 1 and 2, not shown).
Patent GB-354807-A (GB)
Title: Improvements in, or relating to, percussive tools
IPC: B25D9/16
Filed: 1930-04-16
Abstract: 354,807. Percussive tools. RAYNER, G. H. T., 14, Broomhall Road, and RAYNER, P., 37, Ashland Road, both in Sheffield. April 16, 1930, No. 12084. [Class 124.] In a percussive tool in which air supply to the forward end of the cylinder is interrupted if the tool is withdrawn, the end of the valve spring j<1> is made solid to function as the valve j<2>. A piece k, the head of which engages a recess in the face of the valve, has guide arms shaped to allow a free air passage through the space k<2>.
Patent GB-117331-A (GB)
Title: Improvements in and relating to Watch Wristlets.
Inventor: ARKINSTALL JOSEPH
IPC: G04B37/14
Filed: 1917-08-23
Abstract: 117,331. Arkinstall, J. Aug. 23, 1917. Watch bracelets.-A wristlet strap or the like is threaded through members 3 hinged to an outer cover 1 shaped to fit the watch.
Patent GB-977331-A (GB)
Title: Tuning device
IPC: H01F21/04
Filed: 1961-04-05
Abstract: 977,331. Radii receiver tuning arrangements. P. R. MALLORY & CO. Inc. April 5, 1961 [April 26, 1960], No. 12136/61. Heading H3Q. A tuner assembly for very high-frequency signals comprises a rectangular hollow casing 19, a spiral wound inductance 12 having a rotating contactor arm 23, the inductance 12 being mounted on an insulating plate 13 arranged in the easing, a parent component board 17 fixed along the inductance 12, a metal shield 27 separating board 17 from inductance 12, the board 17 and plate 13 having spring contacts 15, 30 which contact an L-shaped circuit board 14 which slides into the casing 19 and carries a sliding switch 11, the switch being arranged to selectively connect different circuits for different frequencies in conjunction with inductance 12 and operated by a shaft 50. In Figs. 1, 5 two L-shaped printed circuit boards 14 are contained in a silver-plated casing 19. The boards 14 each engage their own inductances 12 and the common parent board 17. The inductance 12 is so designed as to make the tuning scale linear.
Patent GB-1462545-A (GB)
Title: Feline rhinotracheitis vaccine and production thereof
IPC: A61K39/245
Filed: 1975-03-24
Abstract: Virulent feline rhinotracheitis virus is attenuated by at least 7 serial passages in feline tissue cultures in a nutrient liquid at 30+/-2 DEG C. The attenuated virus is subjected to further serial passages in feline tissue cultures in a nutrient liquid at 32 to 37 DEG C until the titre reaches 10<4> to 10<7> TCID per ml. The liquid vaccine provides protection against viral rhinotracheitis in cats.
Patent GB-1432231-A (GB)
Title: Cigarette dense end monitoring and controlling apparatus
IPC: A24C5/34
Filed: 1973-03-14
Abstract: 1432231 Cigarette monitor apparatus INDUSTRIAL NUCLEONICS CORP 14 March 1973 [15 March 1972] 12282/73 Heading A2C [Also in Division G3] A method of controlling the operation of a cutter 20 which periodically severs a continuous rod of tobacco 18 having locally dense regions R spaced therealong is characterised in having apparatus 30 measuring weight per unit length. Pulse generator 32 is synchronised to the action of cutter 20 through mechanical, electrical, photoelectric, magnetic on any other means. Pulses S1 and S1' are amplified and shaped by appropriate circuitry. Two correlating wave form generators 60 and 61 are provided for comparison of density peaks S2 and cutter pulses Sl to give a percentage dense-end reading and a phase-angle reading respectively. The output of generator 61 is also correlated with density signal S2 in multiplier 63 yielding a signal which is averaged in a circuit 65 to derive a phase error signal S3 applied to the phase frequency synchroniser 66. Multipliers 62, 63 may be true analogue type (e.g. Hall effect, transistor or integrated-circuit transconductance, Field effect, duty cycle &c or they may be digital to analogue type of hybrid multiplier.
Patent GB-858332-A (GB)
Title: Improvements in and relating to electrical protective relay devices and protective relay systems incorporating such devices
Inventor: SMITH JOHN WALTER FREEMAN
IPC: H02H3/40
Filed: 1956-04-23
Abstract: 858,332. Protective cut-out arrangements. ENGLISH ELECTRIC CO. Ltd. April 18, 1957 [April 23, 1956], No. 12307/56. Class 38 (5). [Also in Group XXXIX] The coupling between primary and secondary windings on a transformer core is controlled by driving the core to saturation by means of a control winding such that the varying differential permeability of the core effective in coupling the primary and secondary windings is wholly or substantially that of the region beyond the knee or knees of the B-H loop of the core. The control winding may have a D.C. bias sufficiently large not to permit A.C. in the primary winding to reduce magnetization to the knee of the B-H loop. Alternatively the control winding may be energized with A.C. of an amplitude sufficiently large to ensure that the core spends only a small time in any cycle in switching between the saturation regions. The construction of core preferred is one of four limbs with the primary and secondary windings at opposite ends of and wound to embrace both central limbs while the control winding is in two halves, one on each centre limb, wound so as not to be coupled with the primary and secondary windings. The core material is lowloss silicon steel. As applied to a protective relay system for a power line 20, Fig. 3, the control winding 24 is energized with D.C. proportional to the voltage on the line while primary winding 22 is supplied with a current proportional to that across the line. The differential permeability of the core in the region beyond the knee of its B-H loop is substantially hyperbolically-related to the control flux so that the output induced in secondary winding 23 is proportional to the admittance of the line and when this reaches a predetermined maximum the output operates a circuit-breaking relay 29. By omitting the rectifier 28 and the smoothing circuit 31 alternating current of an amplitude proportional to that across the line may be applied to the control winding to produce the same result except that the admittance at which the circuit-breaker operates varies with the phase angle between current and voltage on the line.
Patent GB-107297-A (GB)
Title: Improvements in or relating to Marine Steering Gear.
Inventor: MCLEOD THOMAS
IPC: B63H25/28
Filed: 1916-08-31
Abstract: 107,297. McLeod, T. Aug. 31, 1916. Revolving - cylinder pumps.-In steering-gear for ships, the fluid required for operating a pair of hydraulic rams is circulated by a pump 1 driven by an electric motor 14 only when the hand wheel or telemotor apparatus is moved in either direction from its mid-position. The pump comprises two sets of radial plungers 2, 3 fitted upon a common sleeve 4 and working in sliding cylinders 5, 6 carried round within annular chambers 7, 8 eccentric to the sleeve 4, which turns on a fixed boss 9. The chambers 7, 8 are disposed so that, when one set of plungers is delivering, the other set is sucking, inlet and outlet ports being fitted in the boss 9 to permit this. The pump, which may be driven from the main engines, delivers to a by-pass 23 constructed and operated in the manner described in Specification 22738/11, [Class 69 (ii), Hydraulic presses &c.].
Patent GB-179072-A (GB)
Title: Improvements in or relating to the construction of an apparatus for the artificial ventilation and heating on board ships
IPC: B63J2/00
Filed: 1921-04-29
Abstract: 179,072. Marks, E. C. R., (Soc. Anon. Italiana G. Ansaldo & Co.). April 29, 1921. Forced and exhaust draught apparatus; air, heating; ventilating ships. - In ventilating and heating apparatus for use on board ships, of the type in which the heating-apparatus, fan, and control valves constitute a self-contained unit, and two valves only are necessary for changing over from a supply to an exhaust system, the temperature of the air is controlled by means of a rotatable annular louver valve which allows a part of the air to pass outside the heater. In the apparatus shown, air is drawn in through the conduit A and delivered by the fan past the valve H to the heater P, which is surrounded by a valve comprising fixed and rotatable annular plates having louver openings L, L<1>; by adjusting the movable plate, the proportion of air passing outside the heater may be varied. To change over to an exhaust system the heater is shut off from the fan by the valve H, and the segmental valve M is moved to the position shown in dotted lines in Fig. 3. Air is then drawn from the apartment through an opening G below the fan and delivered through the conduit A.