baber/WOPTO huggingface dataset:
Patent GB-1464437-A (GB)
Title: Temperature stable relaxation oscillator
IPC: H03K4/501
Filed: 1974-05-09
Abstract: 1464437 Relaxation oscillators MOTOROLA Inc 9 May 1974 [8 June 1973] 20545/74 Heading H3T A relaxation oscillator suitable for use in a television time-base comprises a C,R charging circuit 76, 78 connected to one input of a comparator 44, 46 the other input of which receives a reference voltage, the output from the comparator being connected (via transistor 52) to two electronic devices 54, 56 which when the capacitor charges above the reference voltage are respectively caused by the output of the comparator to discharge the capacitor of the C,R circuit and to lower the reference voltage so that recharging recommences when the capacitor has discharged below the new reference level. It is explained that, in the circuit shown, during charging periods transistors 44, 52 and 56 are off and during discharge 54 and 56 are saturated so that the circuit is insensitive to temperature variations of the transistors. The supply is stabilized by diodes 64, 66 and 68 and any remaining effect of supply variation is balanced by corresponding variations of the reference voltage. Resistors are so made that their ratio does not vary. The frequency may be controlled by a voltage at 22 from a phase detector. A suitable integrated form of the circuit is described.
Patent GB-772903-A (GB)
Title: Closures for non-refillable bottles
IPC: B65D49/06
Filed: 1955-07-15
Abstract: 772,903. Non-refillable bottles. BERTELLI, M. July 15, 1955 [July 16, 1954], No. 20552/55. Class 66. A closure for a non- refillable bottle 8 comprises a hollow body 1 containing an outer first closure member 10A, 10, 11, 12 having limited axial movement, an inner axially movable second closure member 14 receiving a part 12 of the first closure member centrally and slidably, a fixed valve seating 22 adjacent the bottle 8, a tubular valve member 21 slidable through the fixed seating 22 and arranged to abut thereon, and a hemi-spherical valve element 20 between the closure member 14 on the valve member 21. The valve element 20 presses on the tubular valve member 21 when the bottle 8 is upright to seal the bottle, and presses the first and second closure members outwardly when the bottle 8 is inverted to permit liquid to flow out. The closure member 14 is formed with an apertured peripheral ring 15 and a loose sealing ring is included between the hemispherical valve 20 and the tubular valve 21.
Patent GB-1073064-A (GB)
Title: Centrifugal pump units
Inventor: POLLAK FREDERICK
IPC: F04D13/06
Filed: 1965-05-14
Abstract: 1,073,064. Centrifugal pumps. STOTHERT & PITT Ltd. May 13, 1966 [May 14, 1965], No.20590/65. Heading F1C. A centrifugal pump comprises a two-part casing, one part being in the form of a branch cover 10 incorporating the suction and discharge pipes 11, 12 and connected to, or as shown, integral with, the electric driving motor 13. The other casing part is a cover 14 detachably secured to the branch cover 10 by bolts 16. The pump impeller 22 operates within a pump body 15 detachably secured to the branch cover 10 by bolts (not shown) and comprising a volute casing 18 in communication with the discharge pipe 12, and an inlet cover 19 detachably secured to the volute casing by bolts 20 and having an inlet opening 23 in communication with the suction pipe 11. The cover 14 may have a transparent inspection cover 26. After removal of the cover 26 or the cover 14, followed by removal of the cover 19, the impeller 22 and a shaft seal 24 can be removed. After removal of the cover 14, the volute casing 18 can be removed without disturbing the pipes 11, 12. The support member 28 for the shaft seal 24 and a thrower element 25 can then be removed to give access to a motor bearing 29. The separate support member 28 may be replaced by a support member integral with the volute casing 18. The pump can be supported at the junction between the cover parts 10, 14, either at an opening in a floor or wall or through columns arranged on a base. Alternatively, it may be supported by the motor 13, provided for this purpose with a base plate or legs.
Patent GB-364514-A (GB)
Title: Device for preventing bottles containing milk from being pilfered
IPC: A47G29/26
Filed: 1931-07-18
Abstract: 364,514. Securing milk bottles to doors. TODD, J., 19, Kilbowie Road, and CRAIG, J., 31, Alexander Street, Clydebank, both in Glasgow. July 18, 1931, No. 20594. [Class 44.] The bottle Q is inserted into a slot B, parallel to the door, and raises a circular plunger C by contact with a bevel-edge O; the plunger afterwards drops into the neck of the bottle as shown in Eig. 1 and locks it. To withdraw the bottle the door is opened, the T-piece G is pressed outwards by a spring K, and wedges H on the T-piece pass under arms E attached to the plunger, and the latter is raised to free the bottle.
Patent GB-478968-A (GB)
Title: Improvements relating to pedal mechanism for clutch, brake or like gear
IPC: G05G7/04
Filed: 1936-07-27
Abstract: 478,968. Brakes. BALSRAW, T. July 27, 1936, No. 20740. [Class 103 (i)] [Also in Group XXIV] A brake or clutch is operated by a lever 10 and a spring 17 arranged on one side of the lever pivot 12 and connected by a rod 20 curved round the pivot to a lug 21 on the lever on the opposite side of the pivot. The points of connection of the spring are on a line 15 which passes through the pivot 12 or slightly to one side of the line when the mechanism is in non-operative position. In a modification the spring is of spiral form.
Patent GB-327075-A (GB)
Title: Improvements in or relating to foot propelled boats
IPC: B63H16/20
Filed: 1929-07-06
Abstract: 327,075. Davies, J. W., and MacLaren, G. July 6, 1929. Driving-arrangements for screw propellers.-In manually-operated boat-propelling mechanism a pair of slide members are reciprocated on fore and aft guides and through bevel gearing actuates a crank shaft which is geared to the propeller. Two slide members 19 are mounted in guides 21 and are connected by rods 18 with pairs of cranks at 90‹ on a crank shaft 15. The shaft is supported on pillars 16 and carries a crown wheel 14 which gears with a. smaller bevel 13 on the propeller shaft 11. This shaft also carries a fly wheel 26. For the purpose of reversing the propeller a pawl arrangement is mounted in conjunction with the crown wheel 14.
Patent GB-814991-A (GB)
Title: Improved means for producing surface finish in the bore of tubes
Inventor: LINES ERNEST WILLIAM POOLE
IPC: B24D13/02
Filed: 1956-07-06
Abstract: 814,991. Internal grinding and polishing. UNIVERSAL STEEL TUBE CO. Ltd. July 8, 1957 [July 6, 1956], No. 20937/56. Class 60. Means for polishing the bore of a tube comprises a layer of fabric 10 supported on a spring 4 which due to its resilience urges the polishing agent on the fabric into uniform contact with the tube. The spring 4 is connected at one end to an anchor plate 5 which is retained on a mandrel 6 by a nut 7. The other end of the spring is connected to a rotatable and slidable collar 8 which, in order to vary the diameter of the spring, may be locked in an adjusted position by the bladed end 9a of a spring-loaded pin 9 engaging in one of a series of splines formed on the mandrel. The fabric 10 may be in the form of a helical strip as shown or, in the form of a sleeve.
Patent GB-1497645-A (GB)
Title: Thrust bearings
IPC: F16C19/30
Filed: 1976-05-21
Abstract: 1497645 Bearings TORRINGTON CO 21 May 1976 [6 Aug 1975] 21009/76 Heading F2A An annular thrust bearing race, 10 comprises an axially extending flange 28 (Fig. 3) constituting a guide for cage 14 (Fig. 2), which flange is divided into segments by lubricant channels 26. The circumferential ends 30 of each segment form at least part of the side of a channel and these ends of each segment are turned inwards towards the centre of the annulus. Each turned in portion 34 may extend over 3-20 degrees of circumferential arc, the free edges making an acute angle with the tangent line shown on Fig. 3. Since the cage does not contact the relatively sharp ends of the segments, wear is reduced. In a thrust bearing assembly, cage 14 is retained by outwardlyextending portions 29 on the flange of race 10 and inwardly-extending tabs 20 on race 12.
Patent GB-598992-A (GB)
Title: Improvements in diaphragm valves
IPC: F16K27/10
Filed: 1945-08-17
Abstract: 598,992. Valve casings. SAUNDERS VALVE CO:, Ltd. (Boteler, H. W.). Aug. 17, 1945, No. 21053. [Class 135] The casing of a diaphragm-type valve comprises a hollow barrel 10 having a cut-out 21 in its wall between the ends to which annular flanges 11 are secured, a third flange 16 parallel to the axis of the barrel and attached to the wall thereof at the cut-out, a pair of side plates 19 secured to opposite sides of the barrel along the edge of the cut-out and also to flange 16, preferably along its inner edge, a weir seat 26 extending across the barrel and connected at its ends to flange 16, and a pair of shovel-like plates 27 connected to opposite sides of the weir seat 26 and being connected along their edges to the inner faces of plates 19 and the inner surface of the barrel, the plates all being made of sheet stock bent to the desired form and free from areas in which the stock is distorted from its plane about more than one axis. The various parts are welded together. Flange 16 is seated in recesses in the cut-out 21 and its edge 25 is cut away at these parts to facilitate liquid flow. Flanges 11 are bolted to the inlet and outlet conduits, and the bonnet containing the actuating mechanism is bolted to flange 16 so that the diaphragm is clamped between them. Specifications 362,084 and 468,664 are referred to.
Patent GB-460234-A (GB)
Title: Improvements relating to silencers serving for the passage of gaseous currents
IPC: F02M35/14
Filed: 1935-07-24
Abstract: 460,234. Intake and exhaust silencers. VOKES, C. G. July 24, 1935, No. 21059. [Class 7 (ii)] An exhaust or intake silencer for internalcombustion engines, compressors, &c. is provided with opposing means for reflecting the sound waves backwards and forwards and comprising a pair of diaphragms backed by chambers of decreasing cross-section with their larger ends towards the diaphragms. In the Figure, the reflecting space is formed between a pair of diaphragms 9 behind which are the chambers 8 of decreasing cross-section communicating with the reflecting space by peripheral perforations 12 in the diaphragms. The whole is arranged in a casing 1 with dished ends 2 and apertures 4. Perforated tubes 10 are provided within the chambers 8. In the case of intake silencers, a pipe 3 is connected to the carburetter, so that sounds coming from the engine enter the reflecting space ; and filters 5 are arranged around the apertures 4 which serve for the inlet of air. For silencing exhaust gases, the pipe 3 is connected to the exhaust and the filters 5 are omitted. Pads of felt, asbestos, &c. may be provided on the end plates of the casing.
Patent GB-885009-A (GB)
Title: Improvements in or relating to electric current control circuits
IPC: G11C11/44
Filed: 1959-06-19
Abstract: 885,009. Superconductor circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 19, 1959 [July 2, 1958], No. 21118/59. Class 40 (9). Cryotrons are used as gates to control the direction, in superconductor C9, of current flowing between input and output terminals i, o. In Fig. 1, current flows only in path i1 when gates G6, G8 are closed and in path i2 when gates G5, G7 are closed. The superconductor C9 and the gates G5 to G8 may be arranged in a common flip-flop circuit, Fig. 4. One of the gates G1, G2 is closed momentarily to determine the direction of flow in C9. An independent flip-flop arrangement (Fig. 3, not shown) may be interposed between the input terminal i and the gates G1, G2. In another arrangement, Fig. 5, with an independent control circuit for gates G1, G2, the polarity of the current supply Is determines which of the gates G1, G2 is closed. The gates G1, G2 are initially biased in the same direction by the current from terminal i in windings C1 C2. Windings C3, C4 connected to the supply Is are wound in opposite senses. A gate is closed when bias and control current are in the same direction. The direction of the current in superconductor C9 is read by a reversible interrogating current from source Is. The superconductor G9 and a winding C10 carrying the interrogating current control a gate G9 in series with a battery F and a resistor R. A voltmeter V registers a voltage when the gate is closed, the interrogating current and the current in C9 then being in aiding relation.
Patent GB-851098-A (GB)
Title: Method of casting homogeneous metal structures
Inventor: ORNITZ NATHANIEL BADISCH
IPC: B22D27/08
Filed: 1959-06-22
Abstract: 851,098. Casting-processes. BLAW-KNOX CO. June 22, 1959, No. 21289/59. Class 83(1). A member 10 of metal, fusible at the temperature of the melt 12, is inserted into said melt and subjected to vibrations, preferably of ultrasonic frequencies, as by a magnetic transducer 11. The melt may be of SAE 4615 steel poured at 2700‹ F. There may be several spaced members.
Patent GB-358920-A (GB)
Title: Improvements in television systems
IPC: H04N3/12
Filed: 1930-07-14
Abstract: 358,920. Television. TRIGGS, W. W., 57, Lincoln's Inn Fields, London. (Communication Patents, Inc. ; 60, Broadway, New York, U.S.A.) July 14, 1930, No. 21325. [Classes 39 (i) and 40 (iii).] In a television system in which the object is scanned by light from an electric arc moving along electrodes under the action of a magnetic field, the electrodes 1, 2, Fig. 1, have a closely spaced discharge-initiating portion 3, 4, at one end and a divergent discharge-breaking portion ;i, 6, at the other end. The electrodes 1, 2 are preferably of a non-magnetic material, such as brass, faced at 1a, 2a with a hard-wearing material, such as platinum. The magnetic field is supplied by an electromagnet 9, Figs. 1 and 2, with polepieces 7, 8 having projections 12, 13 to concentrate the flux in the are-gap. One pole-piece 7 is apertured at 15, to allow light from the arc to pass through the lens 11, mounted in an opaque screen S, and scan the object O. The movements of the are, repeatedly traversing the gap, provide the rapid component of scanning. the slower component being obtained by reciprocating the electrode system along guides 17 by an arm 19, eccentrically mounted on a rotor 20, driven by a motor 21, or by a rotating mirror drum, Fig. 5 (not shown). Both the electrodes and the magnet are preferably energized by an alternating current source 24, the arc being initiated at the peak of the alternating potential and the frequency of traverse of the arc along the electrodes being equal to twice the frequency of the alternating potential. A direct potential source 22 may be provided when desired. Light from the object O generates a current in the photo-etectric cell 27 which is amplified at 28 and together with the frequency of the source 24 and the source 26 driving the motor 21 is transmitted to the receiver. At the receiver, Fig. 4, the received signals are amplified at 35 and rectified at 36. Part of the synchronizing signals are separated at 37 and drive the motor 21 controlling the reciprocation of the electrodes 1, 2. The arc frequency, i.e. that of the source 24, Fig. 1, is separated at 37 and is impressed on the electrodes and the electromagnet 9 through a transformer 37a and choke coils 37b. The oscillator 39 is modulated by the picture signals at the modulator 38. The current from the transformer 37a is such that the discharge has a very slight luminosity. The output of the oscillator 39 is superposed on the gap and controls the increase of luminosity of the arc. The oscillator 39 has a high frequency to prevent its interference with the velocity of the arc. A source of direct current 41 may be utilized, if desired, and inductances 25 and capacities 23 may tune the circuit to a particular frequency to prevent interaction between oscillations of different frequencies. The electrodes at both receiver and transmitter may operate in any gas at any pressure with or without the addition of liquids or finely divided solids. Specification 360,470 is referred to.
Patent GB-775885-A (GB)
Title: Dyestuff preparations and dyeing or printing processes using them
IPC: C07C309/47
Filed: 1954-07-21
Abstract: A dyestuff preparation comprises at least two different vat dyes, which belong to the class of 1.4- and 1.5- diacylaminoanthraquinones and which are not isomeric with one another.  The acyl residues may be those of carboxylic acids of the benzene series, and at least one of the dyes may contain a sulphonamide or alkyl sulphone group.  The molecular ratio, where two dyestuffs are present may range from 3 : 1 to 1 : 3 and may be about 1 : 1.  Reference is made to the formation of molecular compounds, e.g. on the fibre by the processes of oxidizing the leuco compounds, followed by soaping at the boil, or in substance by treatment with solvents or acid-pasting with sulphuric acid. Dyeings or prints may be finished by treatment with sulphonic acid amides (see Specification 774,518).  In examples, (1) viscose or cotton is dyed from a hydrosulphite vat containing (a) 1.4 - dibenzoylamino - anthraquinone and 1 - (41 - dimethylsulphonamidobenzoylamino - 4 - benzoylamino - anthraquinone, (b) 1.4 - bis - (41 - methylsulphone - benzoylamino)-anthraquinone and 1.4 - benzoylamino-anthraquinone, (c) 1.4 - bis - (41-dimethylsulphonamidobenzoylamino) - anthraquinone and 1 - (41 - methylsulphonabenzoylamino) - 4 - benzoylaminoanthraquinone (d) 1.5 - di - (41 - chlorobenzoylamino) - anthraquinone and 1.5 - di - (41 - dimethylsulphonamidobenzoylamino) - anthraquinone; (2) viscose is dyed with a mixture of the sodium salts of the leuco-sulphuric esters of the compounds under 1(a) above; (3) the dyestuffs of 1(a) above are made into a printing paste with the usual ingredients and printed on viscose; (4) a mixture of 1.4-dibenzoylaminoanthraquinone and 1 - (41-dimethylsulphonamidobenzoylamino) - (4-(41 - chlorobenzoylamino) - anthraquinone is acid-pasted, ground with dinaphthylmethane disulphonic acid and incorporated in a viscose spinning composition. Alternative reactants are specified.
Patent GB-213693-A (GB)
Abstract: 213,693. Kinnard, E. H., and Universal Postal Frankers, Ltd. Jan. 11, 1923. Index type-wheel machines. - Postmarking- machines for franking, cancelling, and dating, have a series of dies selectively brought into operative posi. tion and a meter moved proportionately to the value of the die. The machine is power-operated with the operating - devices handreleased. These devices, after being electrically operated, are automatically disengaged. The stamping, cancelling, and dating devices are actuated from a main shaft 29, which is set in motion by the engagement with a pulley 6 of a pulley 5 carried by a motor 3 which is pressed upwardly by a spring 23 when freed by a treadle, which operates to rotate a shaft 16 carrying a cam engaged by a roller 17 and a rod 19 connected to the motor. The shaft 29 carries a cam 32 notched for engagement by a detent 35 pivoted on a shaft 37 which carries a lug 96 for entering one of the notches 97 in the stamp drum 63. The shaft 29 is geared to a shaft 52 which operates the stamping, cancelling, and dating devices. A pin 57 carried by a hand-lever on a shaft 55 is capable of engaging any one of a series of holes corresponding to different values of stamps. The shaft 55 carries a toothed sector gearing with a pinion on the shaft carrying the stamp drum 63, the dies 64 of which are normally retracted in slots but are capable of being depressed by a plunger 67 operated by a cam on the shaft 52. The cam has two different-sized humps respectively to depress the die partly for inking, and completely for stamping. Ink-ribbon Mechanism.-The inking-mechanism is reciprocated into and out of operative position by a finger 278, Fig. 1, moved by a cam-operated lever 271. Arms 282, Fig. 6, carry a spindle 283 on which is mounted a roller or pair of coaxial ratchet-controlled rollers 284 carrying two endless ribbons 286 for receiving differently coloured inks for the franking-stamps and cancelling-dies respectively. The ribbons pass beneath a carriage 287, which is slidable by means of a fork 290 engaged by the finger 278, Fig. 1. Ink is supplied to the ribbons from absorbent pads mounted in rollers. Specification 213,695, [Class 100 (ii), Printing processes &c.], is referred to.
Patent GB-531493-A (GB)
Title: Improvements in or relating to clutch members and apparatus for heat-treating and forming or shaping such clutch members
IPC: F16F15/12
Filed: 1939-07-24
Abstract: 531,493. Annealing. BORG-WARNER CORPORATION. July 24, 1939, Nos. 21473 and 21474. Convention dates, July 25, 1938, and Aug. 4, 1938. [Class 72] [Also in Groups XXIV and XXII] Relates to (1) the construction of the driven disc of a plate clutch, and (2) apparatus for heattreating and shaping the disc. (1) The disc has a relatively thick inner zone 10, Figs. 1, 2 and 4, for attachment to the hub 1, and a thinner outer zone, which is formed with axially spaced parts for yieldingly supporting the clutch facing- members. The outer zone of the disc is formed into T-headed spokes, the neck portions 15 of which are twisted relatively to the plane of the disc, so that the outer wing portions 17, 18 which are separated from the necks by bends 23, are offset relatively to one another. Friction 'facing-rings 19, 20 are attached to the offset parts, so as to be normally spaced apart, and to be forced towards each other in the operation of the clutch. (2) The disc is subjected to a tempering operation in a heated press during the shaping of the spokes, and the dies have relatively movable parts to ensure that pressure is applied to both inner and outer zones of the discs in spite of possible variations in their thickness. The press comprises a lower movable 'head 126, Fig. 8, carrying a die 131, on which the flat face of the disc rests. A fixed upper head 125 carries an annular die 138, which bears on the outer zone of the disc. A second die 140 is slidable within the die 138, and is backed up by heavy springs 146. The dies have co-operating projections and recesses to effect the bending of the T-shaped spokes, and are provided with electric heating elements 127, 135. The press may have two superposed pairs of dies for treating two discs at one operation.