baber/WOPTO huggingface dataset:
Patent GB-847507-A (GB)
Title: A hydraulic master cylinder and reservoir assembly
IPC: B60T11/22
Filed: 1957-01-11
Abstract: 847,507. Hydraulic brakes. SOC. POUR L'APPLICATION DES TECHNIQUES MODERNES SATMO. Jan. 11, 1957 [June 2, 1956], No. 1175/57. Class 103 (1). A master cylinder arrangement for vehicle braking systems, the master cylinder is constituted by a tubular body 1 rigidly secured at one end to a nozzle 2 opening into a distributing pipe 3 while the other end of the tubular master cylinder 1 carries slidingly a piston 6 and a container 7 fitted over the master cylinder in a fluid tight manner by means of seal 8 such that movement of the piston 6 to apply the brakes is initiated by a lever or like control means 18 positioned outside the container 7 acting on the transverse surface of the container 7 to urge the piston 6 in the brake applying direction. The master cylinder is provided with a port 1<SP>1</SP> to receive fluid from the container in the inoperative state of the brakes illustrated in Fig. 1 and a piston-shaped valve means 14 is provided ahead of its output end to maintain a residual pressure in the fluid line to the brakes. Helical grooves are provided in the outer surface of the pistons 14 and 6 to assist the transferance of hydraulic fluid during operation of the master cylinder.
Patent GB-824826-A (GB)
Title: Improvements in and relating to cooled door frames for siemens-martin open hearth furnaces or the like
IPC: F27D1/18
Filed: 1958-01-13
Abstract: 824,826. Furnace door frames. VORKAUF, H. Jan. 13, 1958 [May 18, 1957], No. 1175/58. Class 51 (2). A water-cooled frame for an open hearth furnace is constructed from a number of tubular elements arranged one behind the other, each comprising tubular sections forming part of the horizontal and vertical limbs of the door frames, the elements forming part of the forced circulation system of a steam generator. A water-cooled door frame is formed from pairs of tubular elements, each forming a vertical limb and half the horizontal limb of the frame. The front and rear elements, Fig. 1, comprise inner U-shapes 6 and outer U- shapes 5 connected in series through the horizontal parts to a forced water circulation system. The intermediate elements, Fig. 3, comprise a single U so that the vertical frame members are hollow. The width of each U may decrease in size from front to back so that the door frame is wider on the inside of the furnace, Fig. 5. Adjacent tubular members may be secured to a spacer plate 18 Fig. 7 (not shown), by welding, and the frame may be stiffened by steel sections within the hollow frame members, Fig. 8 (not shown), and the tubular elements may be held together or to a stiffening member by bolts, Fig. 9. The horizontal frame member may be hollow, the flow and return coolant pipes passing within the space, Fig. 6.
Patent GB-644899-A (GB)
Title: Improvements in or relating to impulse oscillation generators
Filed: 1948-01-14
Abstract: 644,899. Pulse generating circuits. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Jan. 14, 1948, No. 1192. Convention date, Feb. 24, 1947. [Class 40 (vi)] In a relaxation oscillator comprising a thyratron valve the pulse repetition frequency is maintained constant by means of a delay line the delay of which determines the interval between the pulses. The Figure shows a pulse generator in which upon the discharge of capacitor C through the thyratron Th a positive pulse produced across resistor Z passes down the delay line L and triggers the thyratron to discharge capacitor C which has been charged in the interval via resistor R. The delay line is terminated at each end in its characteristic impedance. In a modification, Fig. 2 (not shown), the delay line is connected with one end in the grid circuit of the thyratron and the other end short-circuited, so that a negative pulse propogated down the line is reflected as a positive pulse to trigger the thyratron. The interval between pulses is thus equal to twice the one-way delay of the line. In a further modification, Fig. 3 (not shown), a transformer is connected between the anode and control grid of the thyratron, and the delay line, which is opencircuited at the distant end, is connected in parallel with the anode winding of the transformer. The interval between successive pulses is equal to twice the one way delay of the line. The oscillator may be synchronized by applying the synchronizing signal to a second control grid of the thyratron.
Patent GB-459119-A (GB)
Title: Improved photographic material for colour photography
IPC: G03C7/04
Filed: 1935-07-01
Abstract: 459,119. Colour photography. GROVES, W. W., 30, Southampton Buildings, Chancery Lane, London.-(I. G. Farbenindustrie Akt.- Ges. ; Frankfort-on-Main, Germany) July 1, 1935, No. 1216. [A Specification was laid open to inspection under Sect. 91 of the Acts, July 15, 1935.] [Class 98 (ii)] Multicolour grain or line sensitive material comprises a panchromatic silver-halide emulsion layer, which may be of a type suitable for the reversal process, coated on glass, film, or paper and so sensitized that, when a white surface is photographed in daylight on the emulsion through a grey wedge and singlecolour screens each corresponding in colour and permeability with one of the colour elements of the multicolour screen, substantially the same gradation curve is obtained with each single-colour screen. Such material may be exposed in daylight without a yellow compensating filter on the camera. The screen may be produced by the method described in Specification 137,502, [Class 98 (ii)], the elements being made from solutions of resin in methanol and acetone containing respectively phenosaframin and auramine for the red, auramine and methylene blue for the green and methylene blue and crystal violet for the blue. The sensitizers, and the necessary quantities thereof, are determined empirically. Examples are given in which, for the screen produced in the manner abovestated, the sensitizers used are (1) 1.11-diethyl- 5.6 5<1>.6<1>-tetramethylbenzthio - mesomethyl - carbocyanine iodide for green and 1.1<1>-diethyl- 6 - methoxy - benzoseleno - mesoethyl - carbocyanine perchlorate for red ; (2) 1.11-diethylmesomethyl - benzthiocarbocyanine iodide for green, and 1.1<1>-diethyl-6.6<1>-bisdiethylaminobenzthiocarbocyanine perchlorate for red and (3) 1.1<1>-diethyl-6<1>-methylsolenopseudocyanine iodide for green, and 1.11-diethyl-6.61- bisdiethylaminobenzthio - mesomethyl - carbocyanine perchlorate for red ; all in quantities expressed approximately per kilo. of emulsion. The screen and emulsion layer may be coated on the same or on separate supports. Reference is made to " The Photography of Coloured objects," (Kodak), 1933.
Patent GB-606405-A (GB)
Title: Improvements relating to electric discharge devices
IPC: H01J13/48
Filed: 1946-01-14
Abstract: 606,405. Metal vapour discharge apparatus. ENGLISH ELECTRIC CO., Ltd., FERGUSON, J. M., and BROWN, C. Jan. 14, 1946, No. 1300. [Class 39 (i)] A low-pressure vapour electric discharge tube has a mercury cathode 3, a filling of gas at a pressure of 200-1000 microns, preferably 200-300 microns, and an anode 6 completely enclosed in an electrostatic shield 9, 9a, 9b, which is normally maintained at low potential, the potential of the shield being raised when it is desired to start the discharge. The gas may be helium, argon, xenon, or krypton or mixtures of these, but is preferably hydrogen. If, as shown, the device is an ignitron, the discharge is started by a positive pulse applied to the shield 9, 9a, 9b simultaneously with normal operation of the igniter 4; if it is not an ignitron it is started solely by the abovementioned positive pulse applied to the shield. The shield 9, 9a, 9b comprises a sheet iron cylinder closed at top and bottom by sheets of iron gauze. The graphite anode 6 has a glass hood 8a to increase the " creep distance " between the shield 9 and the anode 6 or its lead-in wire 7. The envelope 1 is of glass and is closed at the bottom by a cup 2 of suitable alloy. The device is used as a switch in a pulse modulator circuit to discharge an artificial line at a repetition rate of up to 1000 cycles per second. The Provisional Specification states that the pressure of the gas filling is up to or above 1 mm.
Patent GB-301669-A (GB)
Title: Improvements relating to the manufacture of small rollers and other disc like objects from sheet metal
IPC: B21K1/28
Filed: 1928-01-14
Abstract: 301,669. Harrison, S. C., and Iles, H. Jan. 14, 19218. Forging - dies. - Curtain runner rollers and similar small objects are formed from circular blanks of sheet metal of less diameter than the finished size and with an aperture larger than the finished size, which blanks are then upset in a die c by a punch d having a projection e, whereby the diameter is enlarged and the aperture reduced. The punch or die or both may be shaped to produce an annular depression f on one or both faces of the roller &c., in which case the original blank is thinner than the thickness of the finished article at the rim or centre.
Patent GB-642975-A (GB)
Title: Improvements in or relating to locks
IPC: E05B55/00
Filed: 1948-01-16
Abstract: 642,975. Locks. SEBBA, M. Jan. 16, 1948, No. 1437. [Class 44] A lock comprises a spring latch with means for retracting it, and a second latch carried on a keyactuated plate which is movable linearly into and out of position directly to obstruct retraction of the spring latch. A pack of plates controlling the admission and rotation of the key may be provided comprising fixed ward plates and other plates displacable by the key linearly into and out of direct locking engagement with a carrier of the spring latch. In the form shown in Fig. 1, the spring latch 2 is carried on a plate 5. Below the latch is a pack of fixed ward plates, positioned by one or more pins 7, and associated with movable plates 9 with openings 12 in which the key engages to raise or lower them. In the locked position shoulders 13 on the plates engage behind a flange 14 on the latch plate 5, and a spring 18 engages in notches in the plates in locked or unlocked position. The latch is withdrawn when unlocked by a sliding member 19 operated by an external knob. In the form shown in Figs. 5 and 6, the movable plates 9 are disposed to one side of the keyhole 8, and a second spring-latch 31, key-operated, is provided. The latch 2 is withdrawn when unlocked by a push button 22, Fig. 6, having a wedge piece 25 acting on a wedge piece 27 on the latch plate. In the construction shown in Fig. 10, the latch 2, carried on a plate 5, is withdrawn by a push button. A second latch 41, is carried on a plate 42 sliding on a pin 43, on which are a set of fixed ward plates and a movable plate 45. In unlocking, the key retracts the latch plate 42 and raises plate 45 which lifts a spring 48 out of locking engagement. In locked position, a lug 52 on latch plate 42 engages a lug 53 on latch plate 5.
Patent GB-160986-A (GB)
Title: An improved window sash fastener
IPC: E05F11/00
Filed: 1920-01-16
Abstract: 160,986. Smart, H. W., and Gann, C. T. Jan. 16, 1920. Window holders for sliding sashes.-A fastening for sliding sashes, comprises a spring catch,. released, in the case of the upper sash, by pulling a cord, and in the case of the lower sash, by pressing in a thumb piece. Fig. 1 shows the former arrangement, in which a spring catch a, engaging with a shoulder l on a rack-plate n is withdrawn by pulling a cord d which is passed round one fixed pulley e and a second pulley f mounted upon an arm c pivoted to the containing casing at k and also to the catch. In a modification, the arm c is dispensed with, and the pulley f is mounted upon an extension of the catch a. The catch a', Fig. 2, for the lower sash is pressed out by a thumb-piece Q, which can be held in position to render the catch inoperative by engaging a notch T with the edge of the fixing-plate U. Specification 29040/09 is referred to.
Patent GB-1340785-A (GB)
Title: Methods of ring spinning or twisting and ring spindle machines
IPC: D01H7/60
Filed: 1971-01-12
Abstract: 1340785 Traveller constructions LITTON INDUSTRIES Inc 12 Jan 1971 [14 Jan 1970] 1540/71 Heading DID In a method of ring spinning or twisting of filamentary material utilising a ring and a traveller, the traveller having a first portion which extends about the ring to an extent enabling it to be guided by the ring, and a second portion which extends from the first portion in the direction opposite to the direction of travel of the traveller, filamentary material is caused to travel through the traveller to exert on the traveller a force having a first component causing the traveller to be driven along the ring and a second component exerting a pull on the traveller transversely of the ring, the weight of the traveller, the size of the, second portion and the shapes of the opposing surface portions of the second portion and the ring are such that, at the speed of travel of the traveller, aerodynamic pressure is exerted by air upon the two surface portions to tend to force the second portion in a direction away from the ring and against the second component of the force exerted by the filamentary material, thereby to counteract the tilting force otherwise applied to the traveller and to reduce substantially to zero the friction created by said second component between the traveller and the ring. A number of suitable travellers are described and illustrated.
Patent GB-696629-A (GB)
Title: Improvements in electromagnetic transducing devices
IPC: H04R11/00
Filed: 1952-01-18
Abstract: 696,629. Instruments for deaf persons. BULLEN, F. J., and SMALL, C. J. P. Jan. 18, 1952, No. 1556/52. Class 40 (iv). In an inertia-type transducer, particularly a bone-conduction hearing-aid receiver, in which the magnet and its co-operating armature are each connected to the casing by resilient means one of these means comprises a spring or springs having a non-linear force-displacement characteristic. Specification 523,412 is referred to. As shown, the magnet system 3 and armature 4 (Fig. 1) are mounted on separate spring members 5, 6, both of which are secured to the casing 1. The spring 5, shown in detail in Fig. 2, comprises a thin disc 21, preferably of beryllium copper, having three cut-out portions 22. Screws 25 secure this disc to the casing, and screws 28 secure it to the magnet. This spring member has a non-linear characteristic. Spring 6 (Fig. 3), which has the armature 4 secured thereto, as by soldering, and which comprises three arms 31 which are clamped between the casing 1 and cover 2, has a linear characteristic.
Patent GB-1407384-A (GB)
Title: Chucks
IPC: B23B31/167
Filed: 1974-01-14
Abstract: 1407384 Chucks H ARNOLD 14 Jan 1974 [12 July 1973] 01732/74 Heading B3B A chuck has jaws 3 pivoted about axes 5 so that lugs 6 move along arcs towards the intended axis of rotation AA, each jaw also has a pin 4 running in a scroll 2 in a lock ring 1. The lock ring is attached rotatably mounted on a member 10 of a machine tool. The ring may be turned manually or by a motor. Fig. 3 shows an alternative embodiment where the chuck is in the form of an annular member mounted between flanges 29, 30 on rollers 26, 27 and 36. Roller 36 is driven.
Patent GB-758538-A (GB)
Title: Method and apparatus for temperature control of catalytic chemical reactions
IPC: C07C45/50
Filed: 1954-01-20
Abstract: In a method for carrying out exothermic catalytic reactions with homogeneous flowing fluid reactants, e.g. the oxidation of naphthalene to phthalic anhydride or ethylene to ethylene oxide, the reacting temperature is maintained at predetermined values by indirect cooling with co-current flowing coolant characterized in that the temperature of admission of the cooling medium and the throughput of cooling medium are controlled independently and, preferably, automatically.  Preferably the temperature of the coolant is controlled by relating it to the inlet temperature of the reaction zone and the quantity of coolant controlled in relation to the outlet temperature.  The cooling medium may be recycled; or may be cooled or portionally cooled before recycling; or the reactants may be used as cooling medium.ALSO:In a method for carrying out exothermic catalytic reactions with homogeneous flowing fluid reactants, the reacting temperature is maintained at predetermined values by indirect cooling with co-current flowing coolant characterized in that the temperature of admission of the cooling medium and the throughput of cooling medium are controlled independently and, preferably, automatically. Preferably the temperature of the coolant is controlled by relating it to the inlet temperature of the reaction zone and the quantity of coolant controlled in relation to the outlet temperature.  The cooling medium may be recycled; or may be cooled or portionally cooled before recycling; or the reactants may be used as cooling medium.  This method is useful for the oxidation of naphthalene to phthallic anhydride or ethylene to ethylene oxide and allows reaction tubes of wider diameter and lengths of 20-50 feet and longer, instead of the usual 6 feet.
Patent GB-562070-A (GB)
Title: Improvements in inductive windings provided with electrostatic shields
IPC: H01F27/36
Filed: 1943-02-05
Abstract: 562,070. Transformers &c. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 5, 1943, No. 1926. Convention date, Feb. 10, 1942. [Class 38 (ii)] For preventing corona at the edges of a split electrostatic shield 13 associated with a transformer or like inductive winding, strips of insulating material 14 coated with electrically conducting particles 15 are assembled with the shield so as to overlap its edges. The strips may be further coated at 16 with a semiconducting paint, and may, together with the edges of the shield, be enclosed within strips of paper folded thereover.
Patent GB-130894-A (GB)
Title: Improvements in Processes and Apparatus for Producing Synchronous Kinematographic and Phonographic Records.
Inventor: KELLUM ORLANDO ELWOOD
IPC: B43L11/00
Filed: 1919-01-27
Abstract: 130,894. Kellum, O. E. Jan. 27, 1919. Reciprocating and oscillating machines. -An electro - magnetic motor for driving a kinematograph machine in synchromism with a phonograph comprises a series of solenoids 42 mounted to rock on a spindle at their lower ends, their axially-movable cores 42<a> being coupled to angularly-disposed cranks on a shaft 16a geared to the kinematograph 20. The solenoids are in turn connected to a battery 44 by a commutator 39 on a shaft, 37 geared to the phonograph 11.
Patent GB-213047-A (GB)
Title: Improvements in and relating to washing machine plungers
IPC: D06F15/00
Filed: 1923-01-22
Abstract: 213,047. Soper, D. Jan. 22, 1923. Washing-machines with axially-moving plungers; washing-plungers. - A washing-machine plunger comprises a dome-shaped portion 5 provided with a skirt 6 terminating in a dished flange 11. A curved flange 8 is attached at the lower edge of the dome to throw the liquid downwardly and outwardly. The plunger is guided loosely by the upstanding cylindrical hollow boss 2 through which the actuating rod passes. The plunger is secured to its rod by means of nuts or, as shown, by a tapered rim screwed into the boss 12 and traversing a hole in the rod.
Patent GB-283972-A (GB)
Title: A butter curler
IPC: A47J43/28
Filed: 1928-01-21
Abstract: 283,972. Aerni, J. Jan. 21, 1927, [Convention date]. Couplings.-A butter curler comprising a knife 1 secured within a. two-part non-conducting handle 2, 2', is combined with an electric heating- element 5, 6 for keeping the knife warm when in use. To prevent the conductor 7 from being torn away from the element an open shell 9 about the conductor and within a ring 10 is adapted to be tightened on to the conductor by a screw 11 passing through the ring. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a construction wherein the handle part 2' is screwed into the part 2 and the conductor secured by a conical shell screwed into the part 2<1> from the inside. This subject-matter does not appear in the Specification as accepted.
Patent GB-418291-A (GB)
Title: Stop motion for spinning, doubling, twisting and like frames
IPC: D01H13/18
Filed: 1933-01-20
Abstract: 418,291. Delivery-stopping arrangements for spinning-frames. WILLIAMSON, W. P., Ludlow, Massachusetts, U.S.A. Jan. 20, 1933, No. 1991. Void [Abridged as open to inspection under Sect. 91 of the Acts, July 21, 1933]. [Class 120 (ii).] In spinning-frames for flax, hemp, jute and the like, a feeler-rod 28 is adapted when the yarn or roving breaks to swing about a pivot 29 and to bringasevering-member, such as a gill 30, into contact with the roving or sliver above the retaining-rollers 10, preferably at such distance therefrom that relatively few of the fibres are being drawn by the retaining-rollers. The part 34 on the rod 28 in contact with the yam may be of polished metal, rubber, leather, cork or wood and is V- shaped so as to serve to smooth the yarn. The feeler-rod is also provided with a receptacle 32 which, when the rod swings forward on breakage, receives the severed end. Instead of the feeler-rod engaging the yarn directly, it may normally be locked in position by a catch which is released upon breakage by a tripdetector engaged by the yam. A latch may be provided to lock the feeler-rod during piercing. Specification 407,690 is referred to.
Patent GB-675038-A (GB)
Title: Process for treating the gaseous products of the chlorination of oxidic ores
IPC: C22B1/08
Filed: 1950-01-25
Abstract: Gases produced by the chlorination of oxidic ores in the presence of a reducing agent at high temperature, and containing volatile chlorides, hydrogen chloride and oxides of carbon are cooled to a temperature somewhat above the dew point of the normally liquid chlorides, the condensed solid chlorides are removed, and the liquid chlorides are therefrom condensed in cooling stages of decreasing temperatures, the temperatures being so adjusted that normally solid chlorides condensing with the liquid chlorides are held in solution. They are precipitated in a separate operation by cooling the solutions.  Normally liquid chlorides are those of titanium, tin, and silicon.  Normally solid chlorides are those of iron, aluminium, zirconium, chromium, tantalum, niobium and thorium.  Gases obtained by the chlorination of titanium ores at say 800 DEG C may thus be cooled to 120-150 DEG C to precipitate iron and zirconium chlorides, and titanium tetra-chloride then condensed successively at down to 40 DEG C, at down to 10 DEG C, and at -20 DEG C to -30 DEG C.  Volatile chlorides still present in the gases may be removed by solid adsorbent, e.g. active carbon, alumina, silica gel, and recovered by heating the adsorbent at 300-600 DEG C at normal or reduced pressure, or in an inert gas, e.g. the chlorination gas freed from chlorides. Hydrogen chloride is recovered from the residual gas by washing with water, or hydrochloric acid and water in a multistage process.  The residual carbon monoxide-containing gas may be used as a fuel, or, after drying, as an auxiliary gas in the process of Specification 661,685.  Two forms of apparatus are indicated, the one in which the liquid chlorides are condensed in tubular coolers with indirect cooling, the other in which cooling is effected by sprays of cooled chloride, especially the cooled condensate passed countercurrently to the flow of the gases.
Patent GB-281501-A (GB)
Title: Tyre puncture preventer
IPC: B60C19/12
Filed: 1927-05-11
Abstract: 281,501. Brown, J., Atkinson, S. M., and Scott, W. E. May 11, 1927. Jackets and covers.-A protective liner for a tyre comprises two sets of side plates g and a central set k linked together transversely and circumferentially, and embedded in rubber e. The plates are formed from metal blanks such as shown in Fig. 5, the edges A, F, being bent about the lines G to form tongues by which the plates are interengaged. When assembled to form an endless band, the plates are locked together by headed studs passed through apertures formed by the rounded corners D of the plates. The liner may be attached to the tyre cover by pointed studs f.