baber/WOPTO huggingface dataset:
Patent GB-460522-A (GB)
Title: A new or improved delivery scraper for mills used for mixing, grinding, refining, and other processes
IPC: B02C4/40
Filed: 1935-07-29
Abstract: 460,522. Roller mills. COX, H. E. July 29,1935, No. 21455. [Class 59] Means for varying the angle at which a scraper is presented to the roll periphery comprises arms hinged about the roll axis and containing a series of recesses adapted to receive trunnions on the scraper holder. As shown, the arms 8 are pivoted on the trunnions 9 at each end of the roller 10 and each arm has a horizontal portion 21 provided with recesses 4 .. 7 into which the trunnions 3 of the scraper holder 21 are placed to alter the angle of the scraper 2. The trunnions 3 are retained in the recesses by a rod 11 and the scraper is rocked about its trunnions by a screw adjustment 13 on a lever 12 pivoted at 20 in a hole 16 on the arm and provided with a lug 14 engaging the undersurface of the arm. Under each recess 5 .. 7 is a corresponding hole 17 .. 19 to house the pin 20 of the lever 12 when the scraper is moved into another recess.
Patent GB-1425321-A (GB)
Title: Information retrieval apparatus
IPC: H02P7/285
Filed: 1972-05-09
Abstract: 1425321 Automatic control of position SELECTRO-MICRO CO Ltd 9 May 1973 [9 May 1972]  21476/72 Addition to 1249321 Heading G3N In a film positioning system, the count in a counter 10 holding the initial (datum) and destination positions in associated stores 29, 18 respectively is initially incremented by a predetermined number representing a count in auxiliary counter 56, the count in counter 10 being incremented as the film moves and composed by comparator 22 with the destination position in store 18. At  equality when a signal exists on lead 34, the film drive speed is reduced and the displacement pulses count down the auxiliary counter 56 until it reaches zero when the drive is stopped. The direction of motion of the film is determined by the relative values of the datum and destination positions. The displacement pulses are produced from an optical transducer 5 and markers on the film. The predetermined number can be varied by " aux counter switch" 55 to allow for variations of the number of film frames per unit length. The direction, drive and braking control signals are derived by the main control unit 40 on outputs 42-52. The datum and destination are entered into the respective stores by operation of keys B and A respectively and keying a 4 digit number at 26 which steps a shift register in write control unit 24. The datum number is also in location counter 16. Operation of switch C feeds clock pulses from pulse generator 54 to clock up auxiliary counter 56 and location counter 16 until the former reaches-its pre-set maximum when the fast drive is initiated in a direction determined by the output of comparator 22. At equality a signal on line 36 directs the displacement pulses to count down auxiliary conter 56 only and at a zero reading from this counter braking circuit 50A which also operates a clamping circuit 53A to hold the film rigidly is applied. A stop button 43 and associated circuit 45 stops the film in any position while a manual control enables the film to be moved in any direction at any desired speed. Slight movement of the film cassette releases switch 59, which releases the brake 50A and clamping circuit 53A and permits cassette removal. If the film over-runs, a stop foil actuates an inductive. sensor and the film is rewound to the last frame.
Patent GB-1522460-A (GB)
Title: 3he-4he dilution refrigerator
IPC: F25B9/12
Filed: 1977-05-23
Abstract: 1522460 Refrigerating PHILIPS GLOEILAMPENFABRIEKEN NV 23 May 1977 [26 May 1976] 21574/77 Heading F4H A <SP>3</SP>He-<SP>4</SP>He dilution refrigerator comprises first mixing chamber 2 for <SP>3</SP>He and <SP>4</SP>He to which liquid concentrated <SP>3</SP>He is supplied through a duct 1 and from which dilute <SP>3</SP>He is passed through a duct 3 and heat exchanger 5 to an evaporation chamber 4 having an outlet 6 for substantially pure <SP>3</SP>He gas, the chamber 2 communicating through a duct 16 to a second mixing chamber 15 at a higher level, there being a superleak for supply of superfluid <SP>4</SP>He to the chamber 15 or to the evaporation chamber 4 or to the duct 1. As shown the superleak 17 is provided between the chamber 2 and the bottom of the chamber 15.
Patent GB-443538-A (GB)
Title: Improvements in and relating to covers for automobile radiators
IPC: B60K11/04
Filed: 1935-07-30
Abstract: 443,538. Radiators for motor vehicles. UNITED-CARR FASTENER CORPORATION, 31, Ames Street, Cambridge, Massachusetts, U.S.A.-(Assignees of Jones, W. 1. ; 57, Richfield Road, Arlington, Massachusetts, U.S.A.) July 30, 1935, No. 21611. Convention date, Aug. 16, 1934. [Class 29] [See also Group XXV] A cover 1 of waterproofed canvas, imitation leather, &c. is detachably secured to the bars 4 of a grille or guard in front of the cooling elements by clips 3 formed by bending flat strips to provide heads 6, Fig. 4, and spring arms 7 adapted to pass through holes in the cover and to grip the bars. The holes may have eyelets 5 and preferably the spring clips have covers 8 for the heads. The clips may be moved longitudinally along the bars to enable the cover to be folded or collapsed to vary the area for entrance of air to the radiator.
Patent GB-680264-A (GB)
Title: Improvements in or relating to expendable cartons or like containers for beverages and other liquids
IPC: B65D3/10
Filed: 1950-09-01
Abstract: 680,264. Cartons opened by tearing. NICKSON, H. W. Sept. 1, 1950 [June 14, 1950], No. 21639/50. Class 66 A conical carton 1 for beverages &c., made from waxed cardboard, paper, or pasteboard &c. is closed after filling, as by a waxed cardboard disc 5 held between coiled, waxed paper &c. rings 3 and 4 and an inturned lip 2, the carton, after inverting being opened by tearing off the tip 6, e.g. at a groove 7. A drinking-straw may be provided.
Patent GB-1427545-A (GB)
Title: Checking the characteristics of an incoming signal
IPC: H04N1/327
Filed: 1973-05-08
Abstract: 1427545 Digital transmission; document scanning XEROX CORP 8 May 1973 [16 May 1972] 21872/73 Heading H4 Certain components in a received signal, such as the carriage-speed indicating tones in a telegraph signal, are used also for initial and subsequent validation of the received carrier. Initially, detection of one and only one of two such tones over a set period of time indicates a valid carrier; subsequently, loss of both tones during a shorter time period indicates loss of carrier. The tones are 1500 Hz and 1100 Hz, and they are used in bursts for other "handshaking" operations wherein two transceivers establish that one wants to transmit and the other is ready to receive. The information to be transmitted is document scan data which frequency modulates the carrier. D.C. signals corresponding to the tones are derived at the receiver Fig. 2 on lines 36, 44 respectively from the output of a demodulator 30, which also provides a D.C. output at 33 indicating reception of a carrier as yet unidentified. The speed signals go to machine speed control circuits 40, 46 and to a counter logic system 37 (detailed in Fig. 5, not shown). Two counters (T2, T3) are enabled by the presence of a respective speed signal to count up to a fixed maximum, and they are given a set time to do this in by another counter (T1) started by the " unidentified carrier" signal on line 33. If both or neither of T2, T3 reach their maximum count, indicating two or no speed signals, an obviously false carrier is being received, and a logic circuit (746) detects this to block a gate (753) and cause a unit (756) to stop the machine. For continued validation of the carrier, during operation, the "unidentified carrier" signal at 33 also goes to an AND gate (766) where coincidence with one or other speed signal (734, 736) is detected and made to operate a double-J-K counter (762, 764) whose outputs control a NAND gate (768). If both speed signals disappear, no reset pulse is generated for the flipflops and in a given time the NAND 768 output goes to 0 to indicate "false carrier". This also disables 753 to shut down the machine.
Patent GB-911082-A (GB)
Title: Improvements relating to control apparatus for helicopters
IPC: G05D1/00
Filed: 1960-06-22
Abstract: 911,082. Manual control devices. UNITED AIRCRAFT CORPORATION. June 22, 1960 [June 26, 1959], No. 21874/60. Class 40 (1). [Also in Groups XXXIII and XXXV] Fig. 2 shows a transducer unit 2 for converting control movements into electrical signals. A casing 4 is mounted on the side of a helicopter by arms 6, 8. A shaft 18 on casing 4 supports a universal joint 20 mounting a cage 22 and tubular member 46. The latter has an enlarged part 50 containing a piston 70 with a skirt 72, a spring 74 urging the piston upwardly. The piston-rod 68 is attached to a control line 51 which extends downwardly, to be held by an operator on the ground, who can swing member 46 about joint 20, within the limits of a conical member 14, and can slide piston 70 up or down. The casing 4 is sealed by a flexible member 54. Two transducers 26, 38, which may be control transformers, are mounted on casing 4 so that their rotary mechanical input axes B-B and C pass through the centre of joint 14 and are perpendicular to each other and to shaft 18. Each is operated by an arm assembly 28, 40 comprising an arm having a portion curved about the centre of joint 20, as shown for arm 36, and cranked, as shown for arm 44 at 56. Also as shown for arm 44, each arm is held against member 46 by a second arm section 58 pivoted to its arm by a lever 62, and urged towards the arm by a spring 64. A third transducer 24 is mounted on cage 22, and has a linear input rod 76 attached to piston 70. Thus the three transducers sense the deviation of line 51 from the vertical, measured fore-and-aft, and laterally, and the tension in the line. The three output signals are taken as pitch, roll and altitude demand signals, and are fed through means which eliminates signals due solely to helicopter attitude changes, adds trimming signals and damping signals derived from accelerometers, and passes the signals through shaping means having transfer functions of the type (T 1 S+1)/(T 2 S+1), where T 2  is less than T 1 , and S is the differential operator. The resulting outputs are fed to servomechanisms operating the rotor blade pitch change mechanism, the pitch system shown in Fig. 5 being typical. The demand signal is fed on line 110, if the pilot's switch 228a is closed, and through mixers 278, 280 and 264 to amplifier 260 energizing a subservomotor 258. The output shaft 266 operates a feedback follow-up transducer 254 and rate feedback signal generator 262, and also operates the valve 268 of an hydraulic servomotor 270 which operate the rotor blade cyclic pitch controls to cause helicopter pitching, and provides a mechanical feedback to valve 268. Similarly, the roll demand signal controls a servomotor operating the blade cyclic pitch controls to cause helicopter rolling, and the altitude demand signal controls a servomotor operating the blade collective pitch control. Specification 789,979 is referred to.
Patent GB-687195-A (GB)
Title: Improvements in apparatus comprising an electric discharge lamp for producing flashes of light
IPC: H01J61/90
Filed: 1948-08-19
Abstract: 687,195. Discharge lamps. GENERAL ELECTRIC CO., Ltd., and FRANCIS, V.J. Sept. 7, 1949 [Aug. 19, 1948], No. 21921/48. Class 39(i) [Also in Group. XXXV] Apparatus for producing flashes of light comprises a condenser 9 which can be charged from a direct current source 7, 10 and rapidly discharged by the switch 5 between the main electrode 2, 11 of a gas or vapour-filled electric discharge lamp 1, the lamp including a quartz tube, which may be inside the envelope or may be part of the envelope of the lamp, arranged to constrict substantially the whole length of the discharge, and an inductive impedance 3 being included in series with the lamp in the condenser discharge path, the capacity and voltage rating of the condenser 9 and the inductance of the impedance 3 being such that the apparatus can operate with an energy dissipation per flash exceeding 35 joules per sq. cm. of internal surface of the quartz tube, measured only over the length containing the discharge path if the tube is longer than the discharge path. The lamp may be provided with auxiliary starting electrodes, for example conductors extending between the electrodes on the outer surface of the enelope. The quartz envelope is of internal diameter 4 mms.; wall thickness 2 mms., and internal length 11 cms. The electrodes consist of tungsten rods of 3 mms. diameter sealed into the ends of the envelope and terminated by strip foil seals so as to leave an arc gap of 7 cms. The filling consists of xenon at a pressure of 300 mms. of mercury. The condenser 9 is of 300ÁF capacity capable of being charged to more than 2000 volts and the impedance 3 is of 80 ÁH inductance, giving an energy dissipation per flash exceeding 68 joules per sq. cm. of internal surface of the quartz tube. According to the Provisional Specification the arc gap is 8 cms. and the impedance 3 is of 10 ÁH inductance. Specifications 9206/03, [Class 39], and 344,439 are referred to.
Patent GB-614693-A (GB)
Title: An improvement in or relating to machines for making cores for use in the art of casting metals
IPC: B22C9/10
Filed: 1946-07-24
Abstract: 614,693. Core-making machines; cores. ATHEY, J. W. July 24, 1946, No. 21995. [Class 83 (i)] In a machine for extruding sand cores, the dies consist of short lengths of metal tube a clamped between plates band c by means of cams d operated by a hand wheel g. The die members may be anchored against longitudinal and rotary movement by the engagement of ribs b<SP>1</SP> and c<SP>1</SP> on the plates band c with transverse recesses a<SP>1</SP> on the said die members or, in a modification, by the engagement of collars on the die members in recesses in the plates band c. The inner ends a<SP>3</SP> of the tubular die members are chamfered to facilitate entry of the mould mixture and carry vent pins i. Mould mixture which passes through the spaces h between the die members is recovered and re-used.
Patent GB-821184-A (GB)
Title: Sliver-balling head mechanism
IPC: D01G27/04
Filed: 1957-07-11
Abstract: 821,184. Sliver-balling apparatus: twist tubes. WARNER & SWASEY CO. July 11, 1957 [Nov. 19. 1956]. No. 21999/57. Classes 120(1) and 120(2) In sliver balling apparatus. sliver is traversed between a spool 34, Fig. 11, and a winding drum 45 by a crank mechanism the rotational speed of which is greater during traverse reversal than at other times. Traverse motion: Drum 45 is driven via change gearing 54, 51, 50, Fig. 6, from a gill box feeding the balling apparatus. The drum shaft 49 drives, via further change gearing 64, 65, a gear 68 carrying a crank arm 69 provided with a roller 71 engaged in the forked end of a second crank arm 73 rotating on a stub shaft 75 eccentric to gear 68. The varying-speed drive imparted to crank arm 73 is transmitted via gearing 77, 78, 80. 83. 84 and 86 to a gear 87 carrying a crank pin 89, from which a connecting rod 90 operates through a pivoted lever 92, Fig. 7, and a link 94 to reciprocate a tube 96 on a rod 98, tube 96 carrying sliver guides 99, 100. Gears 86, 87 provide a 1 : 2 reduction drive, and the highest speed of the drive is timed to coincide with the reversal points of the crank motion, so as to provide a faster reversal than with simple harmonic motion. Twist tubes: Each guide 99, 100 carries a supporting rod 102, Fig. 8, for a U-shaped member 103 rotatably mounting a twist tube in the form of a trumpet 104 which is rotated alternately in opposite directions by meshing of a pinion 105 with a stationary rack 106 during traverse of the guide. Weighting; doffing and donning. A sliver ball 25, Fig. 11, is wound on spool 34 the trunnions 33 of which rest in grooves 32 at the ends of arms 31 pivoted at 29, and are retained in grooves 32 by sliver blocks 37 connected by links 40 to stub shafts 41. Arm 31 is loaded downwardly by a chain or cable 47 connected to a weight or spring. When winding is complete, knobs 44 are used to swing arms 31 upwardly to the dotted line position whereat blocks 37 are automatically retracted and trunnions 33 can roll out of grooves 32 on to fingers 38 projecting from blocks 37, after which the ball can be removed and a new spool inserted.
Patent GB-1515672-A (GB)
Title: Gardening tool
IPC: A01B1/12
Filed: 1975-05-21
Abstract: 1515672 Hand tools H C LAPTHORN 17 May 1976 [21 May 1975] 22008/75 Heading A1B A garden tool comprises a planar metal member 1 adapted to fit rigidly onto a handle; the edges of the planar member are shaped and bevelled for different operations i.e. severing suckers, weeding, soil working.
Patent GB-618858-A (GB)
Title: Improved pest-control compositions and their application
IPC: A01N25/02
Filed: 1945-08-28
Abstract: An emulsion concentrate for pest control comprises at least 5 per cent by weight of compounds of the general formula R1-(R2)CH-CX3, X being chlorine or bromine, and R1 and R2 being cyclic radicals linked by carbon atoms and without salt forming groups, together with at least one crystallization inhibitor which is a non-volatile, neutral, organic liquid of an oily consistency, the ratio of the total amount of crystallization inhibitor to the amount of the above defined compounds being from 2:1 to 4:1.  Other insecticides or fungicides may be added.  Specified crystallization inhibitors are the esters of glycol ether, adipic acid and phthalic acid, butyrophenone, laurophenone, dimethyl-laurophenone, lauroyl-naphthalene, stearoyl-tetralin, paraffin oil, spindle oil, pine oil and tricresyl phosphate.  The emulsions may be used to impregnate permeable materials or objects, such as wool in any worked up form, hair, feathers, furs, body or bed linen, curtains and lampshades. According to examples, (1) D.D.T. is dissolved with heating in phthalic acid butyl ester and xylene, sulphonated castor oil is added, and the product is stirred into water to produce an emulsion; (2) D.D.T., trichloromethyl-3:31 4:47- tetramethyl-diphenylmethane and dimethyl lanrophenone are dissolved in a mixture of xylene and sulphonated castor oil, the product being emulsified with water to produce a product with which wool in its worked up form or feathers are treated by immersion; (3) D.D.T. and allyl o-chlorobenzoic acid allyl ester or other additional insecticide such as pyrethium or rotenone are dissolved in phthalic acid ethyl ester, and xylene and dimethyl-dodecyl-aniline-methosulphate are added, the product being emulsified with water; (4) D.D.T. and dimethyl laurophenone are dissolved by heating in xylene and sulphonated castor oil, the solution being emulsified with water; (5) trichloromethyl-4:41-dimethyl-diphenylmethane and paraffin oil are dissolved with heating in xylene and incorporated in a potash soap, soda soap, sodium salts of alkoxyfatty acids of higher alkyl radicals (C4-C9), sulphated aliphatic alcohols, -dimethyl-aminododecyltoluene-methosulphate, dimethyl-aminoacetic acid-dodecylamide-chloromethylate, or dimethyl-dodecylamino-chlorobenzylate, the product being emulsified with water.  The insecticidal compounds in the examples may be replaced by trichloromethyl-4: 41-diethyl diphenyl-methane, trichloromethyl-4-chloro-31:41 - dimethyldiphenylmethane, trichloromethyl-B : B-dinaphthylmethane, trichloromethyl-4-chloro-41-ethyl-diphenylmethane, trichloromethyl 4:41-dichloro-3:31-dimethyl-diphenylmethane and tribromo-methyl-4:41- dichloro-diphenyl-methane. Specifications 572,998, 578,669 and 590,826, [Group VIII], are referred to.  The Specification as open to inspection under Sect. 91 describes also the inclusion of thianthrene and dimethyl-thianthrene as substances acting both as insecticides and crystallization inhibitors.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1146191-A (GB)
Title: Space heating appliance
Inventor: JENNISON ALAN ALFRED
IPC: F24D19/06
Filed: 1966-05-18
Abstract: 1,146,191. Air heating stoves. RADIATION Ltd. 18 May, 1967 [18 May, 1966], No. 22074/66. Headings F4S and F4W. In a wall mounted air heating stove having an imitation solid fuel fire 3, 4 of known type, situated within an enclosure 2, air induced through inlet apertures 10, 11 by a cross-flow fan 9 into a duct 7 is passed over a hot water radiator 5 to be discharged through louvres 8 into the space to be heated. The fan 9 may be controlled by a manual switch (13, Fig. 1) or by a room thermostat (not shown). In an alternative embodiment, the heating device may be disposed to one side of the imitation fire (see Figs. 5-7).
Patent GB-912375-A (GB)
Title: Magnetic core device and position indicator incorporating the same
IPC: H03M1/00
Filed: 1959-06-26
Abstract: 912,375. Electric selective-signalling systems. INTERNATIONAL BUSINESS MACHINE CORPORATION. June 26, 1959 [June 30, 1958], No. 22086/59. Class 40 (1). [Also in Group XXXVI] In a device for producing digital electric signals representative of the angular position of a shaft by means of a coded scale, the coded scale comprises a plurality of rings of low reluctance material N, N-1, N-2 and N-3, Fig. 4 each ring is sensed by a horse-shoe shaped head 1, Fig. 3. The preferred embodiment uses lead and lag heads to avoid errors. Each head is biased by a coil 6, Figs. 1a and 1b and has the property that the flux flow within it is as shown, depending upon whether it is bridged by low reluctance material, Fig. 1a, or not, Fig. 1b. The flux state of a head is determined by three windings, Fig. 1c, a " primer " winding, a " driver " winding and a " sense " winding. A pulse applied to the primer winding attempts to switch the flux at point Y, Fig. 1a, to the direction shown in Fig. 1a, and a pulse applied to the driver winding attempts to switch the flux at point X, Fig. 1a, to the direction also shown in Fig. 1a. In operation to sense the flux state of a head a pulse is applied first to the primer winding and then to the driver winding, this latter pulse functioning as a reset pulse. If a head is sensing a " O," that is if it is bridged by low reluctance material as in Fig. 1a, then neither the primer or the driver pulse has any effect and no output signal is induced in the sense winding. If a head is sensing a " 1 " as in Fig. 1b the effect of the primer pulse is to reverse the flux at Y, thus causing the flux pattern shown in Fig. 1c and also a pulse to be induced in the sense winding, and the effect of the driver pulse is to reverse the flux at X, causing the flux pattern shown in Fig. 1d, together with a second pulse in the sensewinding. As the flux at points X and Y, in Fig. 1d, is in the same directions as in Fig. 1b, repeated sensing of the flux state of the head is possible. A logical circuit (Fig. 6, not shown), is described which enables each bit to select which of the two lead and lag heads of the next higher denominational disc shall be operative.