baber/WOPTO huggingface dataset:
Patent GB-998579-A (GB)
Title: Improved apparatus for scoring a sheet of glass
IPC: C03B33/027
Filed: 1962-06-07
Abstract: An apparatus for making score lines on a sheet of glass 1 (Fig 1) comprises a bridge 2 extending across and above the sheet of glass 1, and means for moving the bridge 2 relative to the glass 1 in a longitudinal direction, the bridge 2 having mounted thereon scoring tools 15, 18 for making transverse and longitudinal score lines respectively, the mountings for the tools 15, 18 including positioning means to bring a scoring tool on to its scoring line and to move it to one side of its scoring line to permit the passage of another scoring tool.  The tools 15, <PICT:0998579/C1/1> <PICT:0998579/C1/2> 18 are each mounted by means of two rams 16, 17 and 19, 20 respectively to allow raising and lowering of the tools (rams 16, 19) and horizontal movement (rams 17, 20).  The ram 20 may be a double ram (Fig. 5) one member 21 of which operates between two adjustable stroke-limiting stops to provide for two positions of the tool 18, and the other member 22 moves the tool 18 into or away from the scoring position.  A plurality of longitudinal scoring tools may be provided and the rams may be automatically controlled.
Patent GB-744163-A (GB)
Title: Improvements in and relating to variable gain electrical circuits
IPC: H04N9/67
Filed: 1952-09-03
Abstract: 744,163. Electric analogue calculating systems. MORLE, C. W. (Philco Corporation). Sept. 3, 1952, No. 22180/52. Class 37. [Also in Group XL (b)] A variable gain electrical transmission circuit comprises means for producing in response to each of plural input signals of time varying amplitudes supplied thereto a corresponding output signal of amplitude proportional to the appropriate input signal and means for deriving from the combined output signals a control signal of amplitude proportional to the sum of the amplitudes of the output signals which is applied to the signal producing means to control the amplitudes of the respective output signals produced thereby in such manner that the sum of the amplitudes of such output signals is constant and the ratio between their amplitudes is the same as that between the amplitudes of the corresponding input signals. In one embodiment, Fig. 1, independent time varying electrical signals x(t), y(t), z(t) from three separate sources 10, 11, 12 are fed to individual amplifiers 13, 14, 15, respectively and the outputs from these amplifiers are combined in an adding circuit 16 to provide a signal the instantaneous amplitude of which is equal to the sum of the instantaneous amplitudes of the three input signals. This signal is fed to an amplifier 17, operating with a predetermined voltage delay v, and the amplified signal is then fed back as a gaincontrol voltage to all the amplifiers 13, 14, 15. These latter are so arranged that, in the absence of any (gain reducing) feed-back signal from amplifier 17 the sum of their output signals exceeds the predetermined delay voltage. With this arrangement the output from the adding circuit 16 is maintained at a value equal to the delay voltage irrespective of fluctuations in either the relative or absolute amplitudes of the input signals, and the individual output signals of amplifiers 13, 14 and 15 are related to this value in the same proportions as the absolute amplitudes of the corresponding input signals from sources 10, 11, 12, and are thus given by In another embodiment, Fig. 2, in which the input signals are distinguished by different frequencies a single controlled amplifier 19 is employed; the separate signals being recovered from the output of 19 by means of filters 20, 21, 22. The signals are then additively combined in circuit 16 which, as in the embodiment of Fig. 1, supplies the voltage delayed amplifier 17. This latter thus supplies the gain controlling voltage to amplifier 19, and the outputs of the several filters are similar to the several amplifier outputs in Fig. 1. The device is applicable to the constitution of colour information signals from the three primary colour signals independently of overall picture brightness in colour television, and also for analogue computation as in the reduction of independent quantities to a common denominator.
Patent GB-462660-A (GB)
Title: Improvements in synchronous motors
IPC: H02K19/06
Filed: 1935-08-07
Abstract: 462,660. Alternating-current motors. NEUREUTHER, A. H. Aug. 7, 1935, No. 22291. [Class 35] A synchronous motor particularly for clock driving comprises a thin disc rotor 8, and stator polepieces 1, 3 formed as flat strips, the rotor having radial peripheral projections and the stator pole faces being correspondingly toothed, the full width of either or both series of teeth being twisted so that the face of each tooth lies in a plane inclined to the plane of the rotor disc and polepieces. If both series of teeth are twisted, the inclination of a stator tooth may differ from that of a rotor tooth. The stator polepieces may be laminated and a magnetic shunt 17 is provided for the stator coil 12. The motor is started by means of a spring propelled rack segment engaging a pinion 10 on the rotor shaft. The rack segment is slotted at 22 and the portion 20 is bent out of the plane of its motion to facilitate engagement with the pinion 10. The rotor spindle 9 has limited axial play to assist locking into synchronism. The rotor and stator teeth preferably have the same width. Reference has been directed by the Comptroller to Specification 407,800.
Patent GB-296022-A (GB)
IPC: C05B13/02
Filed: 1928-08-01
Abstract: 296,022. Schmidt, F. L. Aug. 23, 1927, [Convention date]. Calcium phosphate; magnesium carbonate; double salts.-A mineral phosphate is rendered citrate soluble by roasting say at 800-1300‹ C. with potassium carbonate obtained from potassium magnesium bicarbonate. Decomposition of the double salt is effected in known manner by warming its aqueous suspension to 80‹ C. or by treating it at 40‹ C. with magnesium oxide or hydroxide, the magnesium carbonate thereby recovered being used in the production of further quantities of the double salt. Preferably the finely divided phosphate is admixed with a concentrated, say a 50 per cent, solution of the carbonate to form a paste, which is then roasted. The double salt may be produced by adding magnesium carbonate, it may be in paste form, to a concentrated solution of potassium chloride, and subjecting the mixture to the action of gases containing carbon dioxide, for instance those produced by the roasting operation.
Patent GB-1435452-A (GB)
Title: Magnetic bubble domain composite with hard bubble suppression
IPC: H01F10/32
Filed: 1974-05-20
Abstract: 1435452 Magnetic storage devices ROCKWELL INTERNATIONAL CORP 20 May 1974 [2 July 1973] 22365/74 Heading H3B In order to suppress the formation of "hard" bubble domains in a layer 13 of bubble domain material supported on a substrate 11, a suppression layer 12 is provided contiguous to the layer 13, this suppression layer having sufficient anisotropy to establish a net moment of magnetization substantially parallel to the layer 13. A "hard" bubble domain is one that has a low mobility, propagates at an angle to the applied bias field gradients, and can exist over a range of bias field values of up to 30 Oersted. Layer 13 may be sandwiched between layers 11 and 12, Fig. 4 (not shown).
Patent GB-152840-A (GB)
Title: Improvements in and relating to alloys particularly for use in treating molten iron and steel
IPC: C22C28/00
Filed: 1919-09-11
Abstract: 152,840. Marks, E. C. R., (Union Carbide Co.). Sept. 11, 1919. Cast-iron processes.-Molten iron or steel is refined by the addition of an alloy consisting of magnesium and silicon, with or without iron or manganese or both, the magnesium being present in the alloy in excess of the equi-molecular proportion to the silicon.
Patent GB-1312604-A (GB)
Title: Production of granular alkali metal tripolyphosphate of high abrasion resistance and high apparent density
IPC: C01B25/41
Filed: 1971-04-19
Abstract: 1312604 Granular tripolyphosphate KNAPSACKAG 19 April 1971 [24 Feb 1970] 22440/71 Heading C1A In a process for the manufacture of granular alkali metal tripolyphosphates of high apparent density (> 750 g./l.) and high abrasion resistance, an aqueous alkali metal orthophosphate solution is sprayed on to fine particulate alkali metal tripolyphosphate having between 10 and 40% of its particles smaller than 0À03 mm. and the remainder between 0À03 and 0À4 mm. while keeping the tripolyphosphate in motion on an inclined rotating disc thereby forming shaped moist granules which are dried by rolling through a heated rotating tube after which the undersize and oversize particles are separated and the remaining fraction of particles are annealed at between 300 and 600 C. The oversize particles may be crushed and after removing product particles of the desired size, the undersize particles may be combined with the above undersize particles and the whole combined with the starting material.
Patent GB-656582-A (GB)
Title: Improvements in or relating to pneumatic vibrators
IPC: A47L9/04
Filed: 1948-08-25
Abstract: 656,582. Compressed air engines; vacuum engines. KNIGHT, H. G. W., and BURGESS, P. Aug. 25, 1948, No. 22452. [Classes 122(ii) and 122(iii)] A pneumatic vibrator comprises a piston 19, 20 reciprocably mounted in a cylinder 12, a valve carried by the piston and having an operating member 22 reciprocably mounted in the piston and adapted to project from the cylinder to operate as a striker, means for supplying pneumatic pressure to one side of the piston to cause it to move against a spring 36 until the striker, and means for supplying pneumatic ted, whereupon further movement of the piston causes the valve 24 to be opened allowing the spring 36 to reverse the movement of the piston and the valve is subsequently closed. The cylinder 12 having a piston reciprocable therein is open to atmosphere at one end via perforated plates 29 and a felt sheet 30 and communicating with a source of vacuum at its other end through ports 16. A resilient disc valve 24 controls ports 21 in the crown 20 of the piston and is operated by a spindle 22 which is reciprocably mounted in the piston, extends through the bottom wall 15 of the cylinder and is attached to a striker 25. During downward movement of the piston due to vacuum on the underside thereof the valve 24 is closed until the striker 25 contacts the object 68 to be vibrated whereupon continued downward movement of the piston, which is limited by a stop 27 on the spindle 22, opens the valve 24, thereby equalizing the pressure on both sides of the piston, and allows it to be returned under the action of a spring 56, arranged between the piston and the bottom cylinder wall, to its upper position when the valve 24 is closed by being pressed against the perforated plate 29 and the cycle recommences. In a modification the upper point of reversal of the piston can be varied by positively arresting the valve 24 by means of a threaded spindle screwed through' the top of the cylinder and the valve is attached to a stem having a rod attached to the striker reciprocably mounted in a recess therein which recess also houses a spring so that the striker rod and the valve stem are urged apart and have relative movement. Specification 656,581, is referred to in the Provisional Specification.
Patent GB-846932-A (GB)
Title: Improved method and apparatus for polymerization of olefins
IPC: C08F10/00
Filed: 1957-07-16
Abstract: A process for polymerizing at least one olefin which comprises introducing solvent containing suspended catalyst into one end of a polymerization reactor, injecting the olefin into a plurality of longitudinally extending reaction zones disposed within an intermediate portion of the reactor and so aspirating the solvent-catalyst mixture into and through these zones as well as contacting the olefin therewith, and recovering from the other end of the reactor an effluent stream comprising solvent, catalyst and polymer.  A coolant may be circulated round the reaction zones, and a portion of the effluent stream may be recycled to the lower end of the reaction zone.  Specified olefins are ethylene, propylene, 1-butene, 1-pentene, 1-3-butadiene and ethylenepropylene ethylene-butadiene copolymers.  Specified solvents are inert hydrocarbons.  Apparatus for carrying out the process is described. A preferred catalyst is chromium oxide associated with at least one oxide selected from silica, alumina, zirconia and thoxia. Specifications 790,195 and 804,641 are referred to.
Patent GB-1467090-A (GB)
Title: Crosslinking method
IPC: C08L15/00
Filed: 1975-05-23
Abstract: 1467090 Cross-linking polymers via hydroxy or mercaptan groups POLYSAR Ltd 23 May 1975 [30 May 1974] 22551/75 Headings C3P  and C3R Polymers containing an average of at least 1À8 hydroxy or mercaptan groups per molecule are cross-linked by heating at 100-200 C. with 0À05-2 molar equivalents of a polyaldehyde of formula in which a is 0 or 1, n is 1 or 2, R is either an organic group containing one or more aromatic rings or an aliphatic group having at least three carbon atoms one of which is quaternary, and X and Y are the same and are either oxygen or di(methoxy), and cooling the product. The resulting cross-links are thermally reversible, so that the polymer can be re-heated, re-shaped and re-cooled. In examples, the polymer is butadiene/styrene/hydroxyethyl acrylate copolymer, a commercial liquid mercaptan-terminated polysulphide, hydroxylated butyl rubber, hydroxy liquid polybutadiene, a liquid ethyl acrylate/hydroxyethyl acrylate copolymer, or a viscous fluid polyester diol derived from adipic acid and a glycol; and the poly-aldehyde is a dihydrate of 4,4<SP>1</SP>-diglyoxalyl biphenyl ether, 4,4<SP>1</SP>-diglyoxalyl benzene, 4,4<SP>1</SP>-bis-biphenyl glyoxal, 2,21-diglyoxalyl propane or 4,4<SP>1</SP>-bis-(dimethoxyformylmethyl) biphenyl ether, or the trihydrate of 1,3,5-triglyoxalyl benzene.
Patent GB-577555-A (GB)
Title: Means for holding and manipulating flexible file blades, saw blades and the like
IPC: B23D51/01
Filed: 1944-11-15
Abstract: 5 7 7, ,555. Saw &c. blade holders. STONE, A. E. G. Nov. 15, 1944, No. 22564. [Class 61 (i)] One of the legs 7 of a U- shaped metal holding device for flexible saw blades is provided with a screwed stud 8 fitted with a nut 9, a clamping plate 10 which is also mounted on the stud being interposed between nut 9 and the leg 7. The upper face of the leg 7 and lower face of the clamping plate 10 are provided with complementary grooves 11 and 12 to receive a circular section blade. The blade is left in tension by pulling apart the holding devices attached at each end of the blade.
Patent GB-639152-A (GB)
Title: A fastening device or lock
Inventor: BIRCH JOHN MICHAEL
IPC: E05B65/52
Filed: 1947-08-14
Abstract: 639,152. Hasp locks. NOTON, Ltd., S. Aug. 14, 1947, No. 22608. [Class 44] A lock, e.g. for a suit case, shown in elevation in Fig. 1 and section in Fig. 2 comprises a casing 1 in the front of which is an opening having flanged side walls 4. A panel-like catch 5 pivoted on a pin 7 by side flanges 6 is mounted in the opening and carries hooked projections 16 to engage in holes 15 in the hasp 11 which is inserted through an opening 12 in the casing. The hasp is released by finger pressure on the lower part of the catch 5 tilting it against the action of a spring 8. The catch may be locked in the hasp retaining position by a sliding bolt 17 having a gapped flange 18 which is movable by a key to a position in which the flange 18 abuts the side flanges 6 of the catch and prevents operation by finger pressure. A spring 26 bears downwardly on the bolt 17 so that by the cooperation of a projection 25 and the flange 4 on the casing the bolt is retained in either the locking or unlocking position. The spring 26 also bears upwardly on the hasp 11 to give it an initial displacement when released.
Patent GB-414518-A (GB)
Title: Improvements in valves
IPC: F16K1/42
Filed: 1933-08-14
Abstract: 414,518. Screw - down valves. BRINDLEY, J. W., 58, Von Brandis Street, Johannesburg, South Africa. Aug. 14, 1933, No. 22678. [Class 135.] In screw-down valves of the type in which the seat 7 for the valve 16 is maintained in the recess 8 by a ported cage 9 engaged by a cover 24 screwing in the valve body 10, annular grooves 15, 27 are formed in the edges of the cage 9 and body 10 respectivey and are engaged by corresponding projections on the cover 24 to form fluid-tight joints. Both inner edges 17 of the seat 7 are made conical so as also to fit the valve 16 when the seat is reversed. The inner face 6 of the inlet passage 4 is curved for smooth flow of fluid. The lower portion of the cage is recessed at 13 to clear the valve body.
Patent GB-300723-A (GB)
Title: Improvements in or relating to machines for mounting maps or the like upon a backingstrip therefor
IPC: B42C7/00
Filed: 1927-08-29
Abstract: 300,723. Gadsby, A. T., and Practical Machines Co., (A. T. Gadsby), Ltd. Aug. 29, 1927. Combining sheet material. - Apparatus for mounting maps &c. upon a backing strip comprises means for feeding a web past an adhesiveapplying device to a point where the maps &c. are fed singly to a timing-device, from which the superposed map and web pass to pressure rollers, and thence to drying cylinders and a severing-device, which is set to cut the backing strip between the maps and controls the timing- device for the feed. The web is fed from a reel mounted on brackets b over guide rollers c, c<1>, a, roller c<2>, driven in the opposite direction, being provided with outwardly-directed corrugations so as to smooth out any creases in the web. The web then passes over a roller f mounted in handcontrolled, pivoted arms f<1> whereby it may be depressed into contact with an adhesive-applying roller d provided with scrapers for regulating the amount of adhesive applied. The web then passes between pressure rollers, the maps being supplied from a feed table h. The timing-device consists of a gate m<5> mounted on pivoted arms m<3> connected by linkage m<4>, m<2>, o<1>, l<1>, with an operating rod o and a roller l which moves downwardly as the gate moves upwardly to engage a constantly-rotating roller l<3> to feed a map on to the web. The web and map pass to further pressure rolls q, and thence to drying cylinders q<3>, r<3>. From the latter the web passes round an adjustable roller r<4> to further rollers r<6>, which stretch the web to the severing-device which comprises a rotating knife s<1> operated by selected gears and co-operating with a fixed blade s; a carn on the blade shaft operates the rod o controlling the gate feed. The web is temporarily held during cutting by grippers t<4> operated by a differential cam, and the severed maps are delivered to a table w; the severing may be omitted and the mounted maps delivered in a continuous web.
Patent GB-934289-A (GB)
Title: Improvements in or relating to mining machines
Inventor: SNIPE ARTHUR
IPC: E21C25/10
Filed: 1961-06-23
Abstract: 934,289. Mineral-mining machines; dust suppression in mines. MINING SUPPLIES Ltd. June 21, 1962 [June 23, 1961; March 24, 1962], Nos. 22735/61 and 11330/62. Classes 68 (1) and 85. The transversely projecting cutter drum 1 of a mineral-mining machine has at the end remote from the body of the machine a pickarmed, flat, annular, vertical plate 11 from which leads a one or more start helix extending around the curved periphery of the drum towards the machine. The or each helix is formed by a series of plates 13 all of the same thickness being welded to and extending radially of the curved periphery of the drum. The plates have a progressive angular displacement with respect to the plate thickness and a progressive axial displacement equal to said thickness. The plates are of such a width that one plate is substantially overlapped by the next axially disposed plate with welding connecting the overlapping plates. A pick box 24 secured to the outer end of one of the helix plates is supported by the end of the adjacent, rearwardly displaced plate. Channels 55 are formed in the surfaces of some of the plates 11, 12 to define with adjacent plates passages through which water may pass to emerge to the rear of the picks as spray to supress dust formed by the picks when cutting. The water is fed to the passages from a bored shaft supporting the drum; the construction of the shaft forming the subject matter of Specification 934,290, which together with Specification 895,682 is referred to.
Patent GB-447031-A (GB)
Title: Improvements in or relating to lighters
IPC: F23Q2/06
Filed: 1934-08-07
Abstract: 447,031. Frictional pocket igniters. CARTIER SOC. ANON., 13, Rue de la Paix, Paris. Aug. 7, 1934, No. 22874. Void [Abridged as open to inspection under Sect. 91 of the Acts, Feb. 13, 1935]. [Class 75 (iii)] The sliding lid 2 is opened by a spring 14 when released from a spring-pressed catch 4 for exposing the wick 26 and the frictionwheel 11 is simultaneously operated as by means of a rack 12 on the lid in mesh with a pinion 13, connected through a ratchet coupling or the like with the wheel so that the latter is not rotated on closing the lid. As shown, the catch 4 engages a transverse bar 18 in the lid. In a modification, a pivoted spring- pressed catch in the lid is disengaged from a stop on the casing by means of a slidable spring-pressed member. The flame-spring 21 is fixed to a plug 22 secured by a bayonet fastening. The plug 23 for the filling opening is provided with a container 24 for spare flints and closes a small vent 31.
Patent GB-1477438-A (GB)
Title: Arrangement for controlling the lihgting conditions in a room
IPC: H05B37/02
Filed: 1975-05-23
Abstract: 1477438 Lighting control systems SIEMENS AG 23 May 1975 [28 May 1974] 22942/75 Heading H2H [Also in Division G3] Room lights (e.g. fluorescent tubes) are automatically switched on and off in sequence in response to a measurement of external light. A system is illustrated in which rows of fluorescent tubes parallel to windows are switched off sequentially, starting from the windows, with increasing daylight, and vice-versa. The output of a photo-electric cell is compared with threshold switches which control relays in the supply circuits. Manual override is provided. Differently orientated rooms may be separately controlled from respective sensors in a partitioned box. The sensors may also effect the operation of motor driven shutters over the windows.
Patent GB-1161528-A (GB)
Title: Improvements in or relating to Surgical Dressings
Inventor: PREBBLE ERNEST PORTER
IPC: D06M16/00
Filed: 1967-05-18
Abstract: 1,161,528. Surgical dressings. PREBBLES (MEDICAL) Ltd. 20 March, 1968 [18 May, 1967], No.23029/67. Heading A5R. A medicated dressing comprises or includes a swab saturated in a solution containing (a) an antiseptic e.g. domiphen bromide, cetrimide or chlorllexidine gluconate, (b) a haemostatic or styptic agent e.g. adrenaline salt or ferric chloride, and (c) a local anaesthetic e.g. lignocaine or amethocaine, the saturated swab or a number of said swabs being inserted in a package of flexible paper, foil or like material which is sealed until required for use, when it is. appropriately opened to obtain access to the, or a, wet or moist swab. A preferred solution is an aqueous solution containing 0.02% domiphen bromide, 1.0% lignocaine hydrochloride and 0.02% adrenaline acid tartrate. A comprehensive dressing pack may also include (a) a dry pad or a pad containing a cleansing or degreasing agent e.g. trichloroethylene and (b) elastic or adhesive plaster. The package may contain several compartments and may be rendered sterile by treatment with gamma rays. The dressing is for application . to wounds, burns and the like.