baber/WOPTO huggingface dataset:
Patent GB-419126-A (GB)
Title: Improvements in and relating to diamond drills
IPC: E21B10/48
Filed: 1934-05-07
Abstract: 419,126. Diamond tools. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. May 7, 1934, No. 13759. Convention date, May 6, 1933. [Class 124.] A diamond abrading tool is formed by placing the diamonds 10 in a thin layer of a plastic lining the mould 1, this plastic being formed of carborundum, powdered starch and water and filling the recess 3 with powdered tungsten carbide and cobalt. This mixture is then sintered. Finally the plastic layer is removed leaving the diamonds protruding uniform from the sintered matrix. Water channels 21 are formed by inserting graphite blocks in the mould. In a modification the tungsten carbide and cobalt is replaced by a mixture of chromium, cobalt, and tungsten or molybdenum. Specifications 349,732 and 352,124 are referred to.
Patent GB-311098-A (GB)
Title: Improvements relating to the manufacture of non-splintering glass sheets
IPC: B32B17/10
Filed: 1928-05-10
Abstract: 311,098. Heyl, G. E. May 10, 1928. Addition to 310,995. Compound transparent sheets. - Cellulose - derivative and glass sheets are simultaneously treated with solvent or softening fluid prior to uniting into compound sheets, as described in the parent Specification, by immersing them in the solvent or fluid in the bag a in which they are subsequently subjected to pressure. The sheets are held in the bag preferably by a flanged U-shaped frame b of cast aluminium lined with coarse wire gauze, by which communication is maintained with an outlet pipe c. The bag, when folded over and clamped, is exhausted by means of the pipe h, tank j, and suction pipe k, air and liquid being removed. Instead of wire gauze, the channel may be formed hollow and provided with perforations communicating with the channel and hollow interior.
Patent GB-239287-A (GB)
Title: Improved means for attaching drinking cups to vacuuminsulated vessels
IPC: A47J41/00
Filed: 1924-06-06
Abstract: 239,287. Baruch, A. June 6, 1924. Fitted with drinking-cups.-Drinking-cups c of porcelain, glass, enamelled metal, or other material liable to distortion during the manufacture of the cups are supported in an inverted position over the mouths of vacuum-jacketed flasks a by an elastic connection contacting with the protective casing, so that any distortion in the cup does not affect the security of the attachment. The cup may be pressed over a resilient gasket e, Fig. 1, mounted in a groove d in the neck of the casing b of the flask, or over a gasket having a rib engaging under the rim of the casing and serving to connect the casing and flask by a closed joint. Alternatively, the cup may be seated on a gasket e, Fig. 5, pips C<3> on the inner surface of the cup being forced over a bead b<1> of the gasket, which also engages the rim of the casing b. A plain gasket may be used in place of the gasket shown in Fig. 5, seated in a groove of the casing, the pips of the cup engaging in bayonetjoint fashion below a rim of the casing. In a further arrangement, shown in Fig. 6, external pips c<3> on the cup c engage, a gapped rim b<2> of the casing, the rim of the cup resting on a gasket e. The cup may engage on the inside of a gasket on the casing, or may be formed with a gapped external rib engaging below pipes projecting inwardly from the neck of the casing. The cup may be formed with an external rib engaging pips on the rim of the neck of the casing.
Patent GB-318870-A (GB)
Title: Improvements in and relating to bedsteads
IPC: A47C19/04
Filed: 1928-05-11
Abstract: 318,870. Leach, A. M. May 11, 1928. Extensible bedsteads.-An extensible bedstead comprises two self-supporting end frames 1-4, which can be directly connected together, at 6, to form a cot, Fig. 1, or can be connected by a horizontal frame 7 to form a bedstead, Fig. 3, or a longer bedstead Fig. 4.
Patent GB-759554-A (GB)
Title: Improvements in push-pull audio frequency transformers
IPC: H01F19/02
Filed: 1954-05-12
Abstract: 759,554. Transformers. KEROES, H. I. May 12, 1954, No. 13905/54. Class 38 (2). An audio-frequency transformer capable of providing undistorted response over a wide band width and of selectively matching loads of varying impedance comprises a primary winding divided into a number of sections P<SP>1</SP>, p<SP>2</SP>, P<SP>3</SP>, P<SP>4</SP> pairs of which are connected in series, and a secondary winding in three sections S<SP>1</SP>, S<SP>2</SP> and S<SP>3</SP>, S<SP>4</SP>, sections S<SP>1</SP> and S<SP>4</SP> of which have equal numbers of turns and are connected in parallel whilst section S<SP>2</SP> and S3 is bifilarly wound and re-entrantly connected in series, sections S<SP>2</SP>, S<SP>3</SP> also being connected in series with sections S<SP>1</SP>, S<SP>4</SP> taken in parallel. The secondary sections are interposed between the primary sections to reduce the leakage reactance to a minimum.
Patent GB-565397-A (GB)
Title: Improvements in or relating to electrical condensers
IPC: H01G4/224
Filed: 1943-03-16
Abstract: 565,397. Condensers. SPORLNG, P. A., and TELEGRAPH CONDENSER CO., Ltd. March 16, 1943, No. 13960144. Divided out of 565,375. [Class 37] A condenser 1 is mounted in an insulating container 2 comprising a single cup-like member provided round the rim with a metal ring insert 3 of L-shaped section, mounted in the 'rim so that one of its limbs extends outward to form a flange to which a metal disc 4 is soldered. Specifications 460,910, 534,507 and 562,361 are referred to.
Patent GB-910797-A (GB)
Title: Improvements in cyclone separators
IPC: B04C5/081
Filed: 1960-04-21
Abstract: 910,797. Centrifugal separators. SVENSKA FLAKTFABRIKEN A.B. April 21, 1960 [April 23, 1959], No. 14016/60. Class 23. In a cyclone having a tangential inlet the interior of the conical part is formed with a spiral groove or grooves 5.
Patent GB-293534-A (GB)
Title: Improvements in or relating to filtering apparatus
Filed: 1927-05-25
Abstract: 293,534. Paterson, W. May 25, 1927. Filters with loose filtering-materials. - In order that the wash-water collecting above a filter bed of sand or the like, cleansed by agitation with reverse flow of water or air under pressure, can be readily run to waste, while wastage of the filtering- medium during agitation is prevented, the whole or a part of either or both of the walls of the waste trough is made movable or collapsable. As shown, a flap c forms, during agitation of the sand bed a, an upward continuation of the wall b of the waste trough d. When agitation ceases, the flap is turned by links g and lever h about an axis c<1>, and the wash water flows into the trough. The flap may be operated from the spindle of the waste valve or from a float in the trough d, or may be loaded so that it can be turned about an axis bv the differences of pressure on its two sides due to water above the bed and in the trough d. Instead of using flaps as part of the wall of the trough, sluices may be provided in the wall.
Patent GB-713819-A (GB)
Title: Two-stroke opposed-piston internal combustion engines with improved driving gear
IPC: F02B75/28
Filed: 1952-06-04
Abstract: 713,819. Driving gear. AKTIESELSKABET BURMEISTER & WAINS MASKIN-OG SKIBSBYGGERI. June 4. 1952 [Dec. 6, 1951], No. 14109/52. Class 7(2) In a two-stroke engine of the type having one or more cylinders and each with a main piston 5 whereby one cylinder porting means, such as inlet port 3, is controlled, and a slidevalve piston 6, opposed to the or each face of pistons 5 whereby another porting means, for example exhaust port 4, is controlled, which valve piston 6 is connected to a pair of subsidiary cranks 20 or equivalent eccentrics on the crank shaft 12 arranged symmetrically one on each side of the main crank and directed oppositely to the latter for effecting substantially counterphase operation of the valve piston or pistons 6 with respect to piston 5, the transmission provided between pistons 6 and the cranks 20 includes pull rods 14 and in association with each subsidiary crank-valve piston slide a connecting-rod 19 or eccentric strap which is guided by a transverse arm 17 pivotally mounted about an axis, such as pin 18, parallel to the crankshaft. The main piston is connected with a main crank by a conventional connecting rod mechanism and cross-head, whilst the piston 6 is provided with four pull-rods 14, only two of which are shown, and a pair of yokes 15, the rods being guided by sleeves (not shown); each yoke is joined by means of a link 16 to one of the arms 17, the other end of each of which is pivoted on the pin 18 that is carried by vertical arms 23 similarly pivoted on a pin 24, the arms 23 being adjustable by hydraulic, pneumatic or electrical means (not shown). Piston 6 will reciprocate almost in counterphase to the main piston but with a small angle of advance, which is determined by the position of arms 23. The latter may, however, occupy one position only for forward engine operation and another for reverse operation; the connecting rod 19 and link 16 may be joined to the arm 17 at different points. The engine may be made double-acting by providing in the lower part of the cylinder another ring of exhaust ports and the main piston could control the admission of scavenging air to both the upper and lower operating spaces of the cylinder by being arranged to pass below and above the centrally disposed inlet ports. Two or more pull rods may be provided for each valve piston and their lower ends, in the case of a double-acting engine, may be connected to a common yoke which serves as a mounting for the bottom valve piston.
Patent GB-130954-A (GB)
Title: Improvements in and connected with the Furnaces of Steam Generators for the Employment of Pulverised Fuel.
Inventor: ROBINSON JOHN GEORGE
IPC: F23C99/00
Filed: 1918-08-16
Abstract: 130,954. Robinson, J. G. Aug. 16, 1918, Pulverulent-fuel furnaces.- The combustion chamber of a pulverulent-fuel-burning furnace is supplied with secondary air by means of oppositely-directed passages c preferably controlled by dampers d; the air passes thence through a space e beneath the furnace to spaces formed in the refractory lining f, and thence through openings y into the furnace.
Patent GB-582072-A (GB)
Title: A new or improved toy
IPC: A63H3/36
Filed: 1944-07-25
Abstract: 582,072. Toys. POLLARD, M. E., and BELL CONSTRUCTION, Ltd. July 25, 1944, No. 14198. [Class 132 (iii)] [Also in Group XXV] A toy comprising a combination of a representation of an object 1 with a known resilient suction cup 2 is capable of adhering to a supporting surface. The representation is pivotally attached at or near its centre of gravity to the suction cup 2 by co-operating press stud and press cap elements 3, 4 secured one to each, the element secured to the suction cup being embedded in the material 6 without piercing the suction surface. In order that the suction cup may adhere to uneven surfaces the lips 8 may be made of soft pliant rubber or the lips 8 may be treated after manufacture with a rubber solution to create tackiness. Larger representations may have one or more additional suction cups attached. If it is desired to give a sterioscopic effect with flat representations, e.g., to give the effect of a horse 11 standing behind a gate 10, the gate may be attached to the supporting. surface by means of a conical suction cup 2a of greater depth than that 2b applied to the horse. According to the Provisional Specification, the means for securing the suction cup to the representation may be in the form of a stud integral with the former co-operating with a perforation in the latter.
Patent GB-568008-A (GB)
Title: Improvements in protective devices for metal vapour electric discharge converters
IPC: H02H7/127
Filed: 1941-11-07
Abstract: 568,008. Converting. GENERAL ELECTRIC CO., Ltd.. and SCHIFF. W. Nov, 7, 1941, No. 14368 [Class 38 (ii)] In a protective arrangemeril, for a polyphase mercury are converter 1 comprising a highspeed relay 7 adapted to apply blocking potential to grids 13, the actuating magnet of the relay comprises a single magnetic core 6 carrying a plurality of coils 4 energized from different phases of the A.C. network, the number of coils being less than the number of phases so that the relay will respond both to symmetrical and asymmetrical increases in load.
Patent GB-890036-A (GB)
Title: Improvements in or relating to fluid-actuated valve mechanisms
IPC: F15B13/04
Filed: 1960-04-25
Abstract: 890,036. Valves. ROSS OPERATING VALVE CO. April 25, 1960 [April 30, 1959], No. 14435/60. Class 135. The position of a motor 110, Fig. 2, operating a gate in a conveyer system or a fluid-control valve, not shown, is regulated by a valve mechanism 101 under the control of a pilot valve 107 actuated by a solenoid 108 or, e.g. by a cam; the mechanism 101 comprises a disc-shaped block 113 having flat surfaces 114-117 and bores 118, 119, 121 and 122, which block may include the pilot valve and motor. Upon opening the pilot valve 108, pressure fluid is supplied to a port 106, from whence it flows into a chamber 138, Fig. 9, in bore 119, housing a valve past a check valve 136 in another bore 137, Fig. 10, and into a chamber in bore 121, Fig. 11, to move the spool 102 therein to the right and thus connect a working port 104 to the motor supply port 103, whereupon the motor piston travels downwardly. A restriction ensures that valve 135 cannot be moved at this juncture. When the solenoid is de-energized the pilot valve returns to the exhaust position causing the spool valve 135, Fig. 9, in chamber 138 to move to the right and connect port 106 to exhaust, the valve 102 remaining in the supply position. The chamber at the left of bore 121 is connectable to port 104 via a restricted passage in the valve 102. When the solenoid is again energized and port 106 is again pressurized fluid is conducted from the right end chamber of bore 119 to the other end chamber thereof via a passage in the spool 135, which latter chamber is connected to a chamber 133 in bore 118 wherein it acts to move spool valve 123 to the left and interconnect the chamber 133 with a port 124 and hence the exhaust port 105; the valve 102 is moved to the left to interconnect ports 103 and 105. Upon again deenergizing the solenoid the port 106 is con-. nected to exhaust and the right end chamber 126 of bore 118 is exhausted through a check valve 161, Fig. 11, in bore 122 so that valve 123, Fig. 9, is returned to the position shown; the chamber at the left end of bore 119 is exhausted via the passage in valve 135 and chamber 126 and the former thereupon travels to the left under the action of its spring into the position shown, the valve 102 remaining in the exhaust position. The ends of the valve bores in the flat surfaces 116, 117 are closed by members 127, 128 having gaskets with grooves which provide some of the interconnecting fluid passages between the bores. Valves 123 and 135 may be loaded by springs or fluid pressure. In a modification, the check valve 161 is replaced by a spool valve which performs some of the functions of the differential areas in valve 135. Specification 838,387 is referred to.
Patent GB-1534939-A (GB)
Title: Milling cutters
IPC: B23C5/22
Filed: 1976-04-09
Abstract: 1534939 Indexable-insert milling cutters VALERON CORP 9 April 1976 [10 April 1975] 14479/75 Heading B3K A milling cutter having indexable cutting inserts 12 each located in a respective individual pocket 13 formed in the periphery of a cylindrical body portion 11 the pockets being orientated so that each insert when secured therein has its cutting face in a substantially radial plane of the body allowing for the axial and radial rake angles, the insert pockets being uniformly spaced in an axial direction and angularly spaced in a circumferential direction to permit progressive cutter entry in milling a workpiece. In the embodiment described in Fig. 1 the pockets lie with uniform angular spacing on a single uniform helix. The inserts may be circular to facilitate ease of indexing and it is preferred that the first, i.e. endmost insert is of square configuration which provides better initial cutting action, the endmost insert being located radially inward of the other inserts. Each pocket is provided with a chip clearance wall 18 and the inserts are secured in the pockets by respective screws which clamp the inserts in a wedge action against the wall of the pocket 13.
Patent GB-604295-A (GB)
Title: Improvements in pre-combustion chamber internal combustion engines
IPC: F02B21/00
Filed: 1945-06-08
Abstract: 604,295. Self-ignition engines. MORRIS, H. L., and ERICSON, G. R. June 8, 1945, 14600. Convention date, April 26, 1944. [Class 7 (iii)] In a self-ignition engine having a precombustion chamber 8 communicating with a main combustion chamber 6 by way of a restricted orifice 9 and a fuel injector 10 injecting substantially the entire fuel charge into the precombustion chamber during the period of the ignition lag and while the pressure in the main chamber is greater than in the precombustion chamber, the dimensions of the restricted passage are such as to control the rate of flow back of the fuel charge from the precombustion chamber to the main chamber whereby the rate of pressure rise in the main chamber does not exceed 50 lbs./sq. inch per degree of crank-shaft travel, the full charge being subjected to partial combustion in the precombustion chamber. The term ignition lag is defined as the theoretical period of time which the same fuel charge as is injected into the precombustion chamber would require to be brought to spontaneous combustion point by the temperature and pressure conditions in the main combustion chamber if the charge were injected into and remained in the main combustion chamber only. The exhaust valve 2 is located in the main combustion chamber. In the case of a four-stroke cycle engine, both the inlet and exhaust valves may be in the cylinder head. The type of fuel nozzle is chosen so as to direct the jet of fuel into the orifice 9. An air jacket 29 surrounds the walls of the precombustion chamber, thereby minimizing cooling of the walls of the chamber and assisting ignition. The fuel injection is timed to take place between 20 degrees and 10 degrees before top dead-centre and the duration of the injection is dependent on the manual or governor control of the amount of fuel supplied. Combustion in the precombustion chamber is started 5 degrees before top dead-centre. The description refers in detail to the pressures, conditions, &c. obtaining within the precombustion' chamber and main combustion chamber at times corresponding to various positions of the piston between 30 degrees before and 15 degrees after top dead-centre.
Patent GB-717278-A (GB)
Title: Improvements relating to angularly-adjustable ventilation, signalling, or like panels for vehicles
IPC: B60J1/14
Filed: 1952-06-11
Abstract: 717,278. Vehicle windows. AUSTER, Ltd., and SMALL, W. W: April 2, 1953 [June 11, 1952], No. 14659/52. Class 20 (3) A folding.panel assembly to facilitate signalling and for ventilating the drivers' cabs of omnibuses comprises two glass panels 1, 2, hinged together at 11 and mounted in metal sash frames 3, 4, pivotally guided in a frame 5 in an opening in the side of the vehicle body adjacent the driver. A draught excluding strip 6 is fitted to the vertical edge of the rear frame 4 to engage in a groove 7 in the frame 3, when the panels are in their closed position, the remaining edges of the frames being fitted with tubular sealing strips 8, 9 to engage the frame 5. Trunnions 15,. 15a carried by brackets 13, 13a fixed to the upper and lower members of the frames 3, 4 respectively. engage in guide slots 16 in bars 17 secured to the frame 5 the annular movement of the panels being controlled by upper and lower pairs of link. members 21, 26. Each pair of link members are pivoted together at 25, the link 26' at one end, and the link. 1 between its ends, being pivoted respectively to brackets 29, 28, fixed to the inner faces of panels 2, 1, the link. 21 having one end pivoted at 23 to the adjacent bar 17. The panel 1 is provided with a handle 30. The trunnions 15; 15a are preferably fittd with caps 18, Fig. 8, which are urged by springs 19 against the bars 17 to retain-the panels in their angularly adjusted positions. The panes are retained in their. closed position by a lock device, Fig.. 9, comprising a lug 33 on, the lower part of the frame 4, a projection on the lug having a snap engagement with a recess 35 in the bottom of the bar 17.
Patent GB-386207-A (GB)
Title: Improvements in or relating to ornamental hard surface covering
IPC: D06N7/00
Filed: 1932-05-24
Abstract: 386,207. Inlaid linoleum. ARMSTRONG CORK CO., Lancaster, Pennsylvania, U.S.A.-(Assignees of Humphreys, H. S.; 612, State Street, Lancaster, Pennsylvania, U.S.A.) May 24, 1932, No. 14710. Convention date, June 30, 1931. [Class 140.] In making ornamental surface coverings such as inlaid linoleum, variations in tone or shade in the pattern elements are obtained by forming the elements of mottled patches composed of mixtures of granules of two or more colours, one or more of the colours being repeated in contiguous patches and the remaining colours being different. Colours which do not differ considerably in hue or intensity are selected, and the line of junction between the patches is wavy or irregular. In making a tile pattern, the tile elements are separated by a mottled interliner 7 of neutral colour, and a tile element 2 is made. up by mixing granules coloured with reddish shades, the light part 2a being made by adding granules coloured with a lighter shade to the mixture and the dark part 2b by adding granules coloured with a darker shade.
Patent GB-775881-A (GB)
Title: Improvements relating to machining apparatus and equipment therefor
Inventor: GARSCIA ALFONS JOHN
IPC: B23Q17/12
Filed: 1954-05-19
Abstract: 775,881. Grinding. ROLLS-ROYCE, Ltd. June 3, 1955 [May 19, 1954], No. 14761/54. Class 60 [Also in Groups XIX, XXII and XL(c)] In a machine tool indicating-apparatus comprises an electrical pick-up P which senses vibrations arising from the contact of a cutting tool with a workpiece and feeds the electrical impulses thus generated through an amplifier V to means CR for giving a visual indication of the contact. A piezo electric pick up P may be clamped to the tail-stock of a grinding machine and the electrical signal therefrom amplified by a -pentode valve V, an adjustable gain control G allowing selection of amplitude of the signal passed to the valve V. A selective filter F eliminates unwanted lower frequency vibrations and the filtered signal 'is amplified by a triode valve T whose output is fed to a "splitter" circuit comprising a transformer A, rectifiers R1, R2 an adjustable resistance limit control L, with leads C1, C2 to a valve Z which amplifies the signal applied to the X and Y plates of cathode ray tube CR, increased brilliance being obtained by introducing a brilliance modulation circuit including rectifiers K1, K2 between the valve Z and the modulator grid G1. The "splitter" circuit spreads a normally dim spot into a brilliant "V" when a signal of sufficient amplitude is received. The limit control L ensures that only signals of sufficient amplitude are displayed, cutting out random and background signals of the frequency to which the circuit is sensitive. The cathode ray tube may be replaced or used with a meter calibrated to give an indication of the magnitude of the contact pressure. Without the cathode ray tube, it is desirable to provide a warning light energized through the pick-up and amplifier circuit immediately contact is established. The indication may be projected optically to the vicinity of the vernier scale on the indexing wheel controlling the movement of the grinding wheel towards the workpiece.