baber/WOPTO huggingface dataset:
Patent GB-793089-A (GB)
Title: Improvements in rotary engines and compressors
Inventor: NUBLING OTTO
IPC: F04C14/14
Filed: 1956-06-09
Abstract: 793,089. Rotary pumps and engines. HANOMAG AKT.-GES. June 9, 1956, No. 17894/56. Class 110 (2). A pump, compressor or engine of the n and n+1 lobe type is provided with movable teeth or crests 17 on one or both gears, the teeth being held radially outwards by springs or fluid under pressure. Figs. 1, 2 show inner and outer rotors 2, 20 with inlet and outlet ports 4, 14, the fluid being controlled by a rotatable valve 6, having an external handle 7. Fluid flow from a chamber 5 through ports 3, 8, 9 into expanding chambers 10 and is delivered through passages 12, 13 to ports 14. The rotor 2 is fixed to a shaft 1 having bearings 18, 19 and the outer rotor 20 is supported in bearings 23, 24. A collar 25 limits the outward radial movement of each tooth, and ball-controlled valves 26, and ducts 27, 28 control the flow of pressure fluid to the underside of each tooth. The eccentricity e between the axes of the rotors is smaller than the depth h of a tooth on the outer gear. Figs. 5, 6 show another construction in which the outer gear 20, 21, 32 is driven by the shaft 1 through gearing 34, 33. In a further modification, Figs. 6, 7 (not shown), the undersides of the teeth are in communication with part-annular channels 45, 44, which respectively lead to regions of low and high pressures. The invention may be applied to internal-combustion engines.
Patent GB-372603-A (GB)
Title: Improvements in packing cases and like containers for food products
IPC: B65D5/42
Filed: 1931-06-20
Abstract: 372,603. Packing-cases &c. USHER, G. B., Rugby Road, Rugby Place, Charlottesville, Virginia, U.S.A. June 20, 1931, No. 17935. [Class 18.] A packing-case or like container with its side walls 1, Figs. 1 and 4, made from a single sheet of semi-flexible fibrous material such as cardboard, paperboard, millboard, pulpboard or other cellulose and fibre products is provided with a recessed bottom 22 held in place by turning the lower margins of the sides 1 around a flange 29 of the bottom, and inserting in the recess of the bottom a metal hoop 32, Fig. 6, which is secured by flexible metal tongues 33, by a pair of crossed sticks 35, Fig. 7, held by a pair of wires 36 or by a lattice 32, 35, Fig. 5, made e.g. of folded fibreboard and held by metal clips 33. The sides and bottom may be perforated for ventilation and spacing members 10 may be formed at the top by folding over the material of the sides. The lid may be of metal or fibre board and has a marginal flange engaging inside the member 10 and is held by bent-over metal fastenings 19 passing through apertures 18
Patent GB-1537273-A (GB)
Title: Bale sledges
IPC: A01D85/00
Filed: 1976-04-29
Abstract: 1537273 Bale sledge S KORONKA 29 April 1976 [30 April 1975] 17943/75 Heading B8H A bale sledge for towing behind a tractor comprises a pair of runners 4, 5 and an operator's platform 14 mounted on the runners and extending across the front of the sledge and along one side thereof to define a bale stacking station 2, wherein any bale received therein, during forward movement of the sledge, is moved by engagement with the ground towards the rear of the sledge. A gate 6 is pivotally mounted on the runner 5 and is held in the closed position shown by a cable actuated latch 9. In a modification Fig. 3 (not shown) the operator's platform (31) extends down both sides of the sledge.
Patent GB-501641-A (GB)
Title: An improved apparatus for veneering
IPC: B27D1/08
Filed: 1937-06-28
Abstract: 501,641. Fluid - pressure presses. BRENNEISEN & CIE, H. June 28, 1937, No. 17962. Convention date, June 26, 1936. (Class 122 (iii)] [Also in Groiips XXXII and VIII] A press for veneering, of the kind comprising a pressure chamber or hood 4 containing a former 8 on which the work is supported and a flexible sheet 11 which is secured to the wall of the chamber 4 and is pressed on to the work by fluid pressure applied in the hood, is provided with means for introducing pressure fluid below, as well as above, the sheet 11, so that either side of the work, or both sides simultaneously, may be veneered, the fluid pressure acting directly on the lower veneer. Heating means, such as the tubes 12, may be provided in the hood. A pressure of about six to eight atmospheres may be employed.
Patent GB-899349-A (GB)
Title: Improvements in and relating to change speed gears
IPC: F16D23/06
Filed: 1959-05-26
Abstract: 899,349. Change-speed gear; positive clutches. TATRA, NARODNI PODNIK. May 26, 1959 [May 26, 1958], No. 17974/59. Class 80 (2). A multi or, as shown, a double stage change speed gear giving six forward speeds and reverse, for front or rear drive motor vehicles, comprises single helical wheels 1, 3 fast on a driving shaft 38 and constantly meshing wheels 2, 4 free on a countershaft 35, single helical wheels 6, 8 fast on the countershaft 35 and constantly meshing wheels 5, 7 free on a driven shaft 39, a double clutch 34 connecting either of wheels 2, 4 to the countershaft 35, a double clutch 37 connecting either of wheels 5, 7 to the driven shaft 39, a single clutch 36 connecting the wheel 5 to the driving shaft 38, and wheels 9, 10 respectively on the driving and countershaft for reverse, the hub of the wheel 10 also acting as the shift sleeve for the clutch 34. The clutches are of the balked, frictionally synchronized, positive dog type. The clutches 34, 36 are synchronized by friction cones 11, and the clutch 37 by friction discs 21 alternately splined to presser plates 22 and wheels 5, 7, the cones and presser plates being each axially detained with respect to their respective shift sleeves, until synchronization is reached, by three spring-loaded balls 46. Clearance between the cones or presser plates and the shift sleeves and between the shift sleeves and their splines and dogs permits independent movement of the cones or presser plates and shift sleeves and thereby prevents undesirable de-clutching. The balking means comprises pins 32 secured to the cones or presser plates and having conical portions which abut complementary conical apertures in the shift sleeves to prevent dogengaging axial movement of the shift sleeves until synchronization is reached. The presser plates 22 opposing support plates 19, and, if included, extra pressure rings 20 are of steel and may have friction linings. The friction discs 21 are retained by spring rings on the hubs of the wheels 5, 7. The dogs of the clutch 37 are arranged at a diameter smaller than the splines between the discs 21 and the wheels 5, 7 to permit disc release after synchronization. Control is by pneumatic means not disclosed. The countershaft 35 drives a conventional gear pump 30.
Patent GB-1014445-A (GB)
Title: An improved casting mould for the aluminothermic welding of vertically butt-welded steel rods or the like
Inventor: PROSCHEK FRIEDRICH
IPC: B22D19/04
Filed: 1964-04-30
Abstract: 1,014,445. Casting composite articles. CHEMISCHE WERK BUNA VEB. April 30, 1964, No. 17984/64. Heading B3F. A casting mould for the aluminothermic joining of vertically positioned butt-ended bars has a cavity including two facing truncated cones 10, 11, the lower one being at least twice as long as the upper, the inlet 6 for the molten metal being lower than the junction of the two truncated cones, an upper chamber 12, and a lower annular channel 13 leading to a collector chamber 15. The mould may be made by the CO 2  process or of fire-clay, graphite, magnesite &c.
Patent GB-800725-A (GB)
Title: Improvements in drilling devices
IPC: E21B4/14
Filed: 1956-06-11
Abstract: 800,725. Percussive drills. BRAUNKOHLENUND BRIKETWERKE RODDERGRUBE A. G. June 11, 1956 [June 18, 1955], No. 18005/56. Class 85 A drilling device comprises an impact piston 2 which is guided in its cylinder 1 by a stepped extension 3 and a series of steel balls 4, the piston being actuated by compressed air fed throught a pipe 6. Compressed air is also fed to the space 5 through ports 9 in the piston and serve to retract the latter, the air being exhausted through valve-controlled ports 19. In a modification, Fig. 4 (not shown), the seals 7, 8 are replaced by a labyrinth type seal which is carried by the member 6 and controls the ports 9, the piston being provided with a small bore in its stepped extension to ensure starting.
Patent GB-378148-A (GB)
Title: Improvements in or relating to gyroscopes
IPC: G01C19/44
Filed: 1931-06-22
Abstract: 378,148. Fluid bearings. SPERRY GYROSCOPE CO. Inc., Manhattan Bridge Plaza, New York, U.S.A.-(Assignees of Gillmor, R. E. ; 17, East 89th Street, New York, and Wittkuhns, B. A.; 5, Garden Place, Chatham, New Jersey, both in U.S.A.) June 22, 1931, No. 18090. Convention date, June 26, 1930. [Class 12 (i).] A gyroscope comprises a ball-like rotor supported in a cup on a self-generated air film. The rotor is spun by electric induction. In the gyro vertical shown, the rotor 12 is supported in a spherical cup 13 adjustably mounted in a spider 20 fixed to the gimbal 21. When starting up the rotor compressed air is supplied through hollow gimbals 22, 21 and passage 14 to the cup but is shut off when the ball 12 has gained speed, a supporting film of air being then maintained by rotation of the ball.
Patent GB-820153-A (GB)
Title: Improvements in the manufacture of heat exchangers
Inventor: SOUTHORN ARTHUR JAMES
IPC: B21D53/02
Filed: 1956-06-12
Abstract: 820,153. Making heat exchangers; soldering. LAWRENCE HOLDINGS (OVERSEAS) Ltd. Sept. 12, 1957 [June 12, 1956], No. 18111/56. Classes 83 (2) and 83 (4). In making an aluminium heat exchanger the surfaces of component parts of the exchanger are wholly or partly pre-coated with a vacuumplated or chemically-deposited layer of metal or alloy capable of being wetted by a solder or brazing alloy and then soldered or brazed together. The coating metal or alloy may be copper, bronze, solder, tin, cadmium or silver and may be provided before or during assembly of the exchanger. The exchanger may comprise a finned tube structure when the whole of the tubes and part of the fins are coated or an axial, radial or cross-flow oil cooler when the whole surface of apertured header plates and only the ends of cooler tubes to be secured therein are coated. The heat exchanger may comprise a casing through which liquid may flow, a block of cooler tubes within the casing through which air may flow and baffles associated with the tubes. According to the Provisional Specification the coating may be of nickel.
Patent GB-1099532-A (GB)
Title: Improvements in or relating to indicators
Inventor: CAMPBELL THOMAS
IPC: G09G3/12
Filed: 1964-05-01
Abstract: Binary electrical signals applied to lines J, F, Fig. 4, are stored by electro-luminescent strips ELJ ...ELF, which may be for instance ZnS:Cu mixed with glass frit and converted by appropriately positioned photo-cells PC, Figs. 4 and 5 (not shown) to a one-out-of-sixteen linear code denoted by electro-luminescent strips ELO (Fig. 5) ... ELU operating further photo-cells PCT to provide a visual display DD, Fig. 6.  A start switch energizes a line ISL to open gates PCI permitting acceptance of signals on lines J ... F having cross-coupled <PICT:1099532/C4-C5/1> <PICT:1099532/C4-C5/2> cells PJ1, PJ2, PJ1, PJ2, &c. to provide bistable devices.  The cells PC act as AND gates wherein only that line having all cells activated is energized which in turn activates further cells PCT corresponding to OR gates within translators T1 ... T5 each of which corresponds to a single column of dots on the visual display DD.  The binary-to-linear converter and each translator T1-T5 comprises an apertured mask sandwiched between two glass substrates, one carrying electro-luminescent strips and the other photo-cells joined by printed circuitry.
Patent GB-1184513-A (GB)
Title: Switching Circuit for Electronic Musical Instruments.
Inventor: HIRANO KATSUHIKO
IPC: H03K17/16
Filed: 1968-04-17
Abstract: 1,184,513. Transistor gating circuits. NIPPON GAKKI SEIZO K.K. 17 April, 1968 [19 June, 1967], No. 18232/68. Heading H3T. [Also in Division G5] A transistor gating circuit for use in an electronic musical instrument in which an envelope forming circuit (6) (Fig. 3, not shown) is used to control a transistor amplifier arranged in such a way that the tone generator can be connected to the input of the circuit without the need for voltage dividing circuits. The circuit also provides high input and output impedances which facilitate the connection of other units to the circuit. As shown a front stage T30 is connected either directly (Fig. 3, not shown) or via a semi-conductor device to a rear stage including a conventional envelope forming circuit including a key switch and connected through resistors Re3 and Re4 to the front and rear stages respectively. Fig. 4 shows the relationship of the circuit to a plurality of other circuits of identical type, as indicated in abbreviated form. By inserting the transistor T41 between the front and rear stages the baseemitter capacitances of each of the four transistors are in series and this results in a lower leakage current at the output terminal 4 when the circuit is cut-off. Figs. 5a to 5i (not shown) illustrate alternative embodiments in which the transistors T31 and T41 are replaced by one or two diodes or transistors in various combinations, while Fig. 5j (not shown) illustrates a circuit similar to Fig. 4 in which transistor T41 is also fed by the envelope-forming circuit through resistor (Re41).
Patent GB-403969-A (GB)
Title: Improved method and apparatus for finishing moulded clay rings intended for use as supports for incandescent gas mantles
IPC: B28B11/18
Filed: 1932-06-29
Abstract: 403,969. Confining dust on generation. CHRISTIE, J., Lynthorpe, Battenhall Avenue, Worcester, and STEATITE & PORCELAIN PRODUCTS, Ltd., Stourpdrt, Worcestershire. June 29, 1932, No. 18326. [Class 8 (ii).] In apparatus for finishing clay rings 14 used as supports for incandescent gas mantles, and comprising a barrel 1 enclosing a frame 5 supporting detachable rods, cords, chains, &c. 4 upon which the rings are strung loosely, for treatment by abrasive material 9, the frame and the barrel are carried by a hollow shaft or shafts 2, 6 having therein holes or slots 3, through which dust is drawn by a fan ; a wire sieve 8 prevents abrasive material from passing into the shaft.
Patent GB-689499-A (GB)
Title: Hosiery and leg anti-self-splash shield
IPC: A41D27/14
Filed: 1950-07-22
Abstract: 689,499. Stocking protectors. RUSSELL, B. J. July 20, 1951 [July 22, 1950], No. 18348/50. Class 141. A stocking protector comprises a crescent-shaped shield, preferably of plastic material, having integral tying tapes 2. The tapes may be tied round the leg at or adjacent to the ankle with the body of the shield either extending upwardly or downwardly over the heel of the shoe. Alternatively, the tapes may be tied beneath the instep portion of the shoe. The shield may be folded adjacent the tying tapes providing adjustability as to size.
Patent GB-940146-A (GB)
Title: Process for upgrading heavy hydrocarbon oils
IPC: C10G19/067
Filed: 1961-05-19
Abstract: Heavy hydrocarbon oils containing metal compounds and/or heteroatomic compounds of sulphur and nitrogen as contaminants are upgraded in a process which comprises contacting the oil in the liquid phase at temperatures within the range of the temperature of incipient cracking and the temperature at which extensive thermal decomposition (as defined) would occur, but in any case in the range 375-475 DEG C., for a contact time of at least 1 minute and at a pressure of at least 14 kg/cm.2 gauge, with a magma, the essential component of which is sodium and/or potassium hydroxide containing not more than 30% wt. of water, the weight ratio of alkali metal hydroxide to hydrocarbon oil being at least 0.025 : 1, and separating from the resulting mixture an oil phase having a substantially reduced content of contaminants.  A preferred magma comprises the carbonate, sulphide, and hydroxide of sodium and/or potassium.  A preferred process comprises the steps of (1) mixing the oil and magma, (2) cooling to above the solidification temperature of the magma, (3) adding water, (4) recovering from the mixture a vaporous phase comprising normally gaseous oil reaction product, an upper liquid phase comprising normally liquid reaction product, a lower liquid phase comprising reacted magma and water, and possibly a layer of emulsion of magma and oil reaction product, from between the interfaces of the two other liquid layers, which emulsion is recycled to step (1), (5) mixing the recovered upper liquid layer with water, and (6) recovering from this mixture a lower liquid layer of water containing magma removed from the reaction product, which may be recycled to step (3) of the process, and an upper liquid phase comprising the oil freed from magma and having a substantially reduced content of contaminants.
Patent GB-1208679-A (GB)
Title: Teat cup
Inventor: SJOGREN ROLF LENNART
IPC: A01J5/06
Filed: 1968-04-18
Abstract: 1,208,679. Teat cups. ALFA-LAVAL A.B. 18 April, 1968 [9 May, 1967], No. 18477/68. Heading A1M. A teat cup comprises a stainless steel cylindrical sleeve 1 and an end cap 2 made of a different material, preferably a synthetic plastics material, having a hole 3 to receive a teat cup liner, and a nipple 4 for connection to a pulsator. The sleeve is provided with one or more recesses 5 and the cap with one or more flanges 6 for snapfitting engagement in the recess or recesses. A shoulder 7 loaded axially by the tension of the end cap material ensures good sealing engagement. In a modification the cap is arranged aside the sleeve. Alternatively sealing may be obtained by  press-fitting.
Patent GB-1067764-A (GB)
Title: Method and apparatus for determining hardness of ferromagnetic material
Inventor: QUITTNER GEORGE FRANKLIN
IPC: G01N27/82
Filed: 1964-05-04
Abstract: 1,067,764. Measuring hardness of ferromagnetic material. ASSEMBLY PRODUCTS Inc. May 4, 1964, No. 18506/64. Heading G1N. An apparatus for testing the hardness of a moving strip of magnetic material comprises a magnetizing head 12 (Fig. 2) and a pick up head 13, whereby the retentivity of .the material is determined as a measure of its hardness, the greater the retentivity the greater the hardness.  The strip 10 is magnetized in spots by the magnetizing head 12 which is energized in pulses by a constant frequency A. C. source, e. g. at 40 cycles, in the form of a pulse generator. At a second location the pick up head 13 receives signals induced therein by the retained magnetic field; the signals are amplified, filtered to remove those not at the pulsed frequency, rectified and fed to a modulator. An erase head 15, powered by D. C. or relatively high frequency current, is provided and the degree of erasing is modulated by the integrated picked up signal so that as the signal becomes larger the erase field becomes stronger tending to reduce the picked up signal to its original level, and is in effect a negative feedback arrangement. The amount of feedback is measured on a meter 14 and is taken as a measure of hardness. The erase field compensates for inadvertent  change in distance between the head 13 and the strip. For instance as the distance increases the picked up signal weakens, the erase field weakens tending to restore the picked up signal. In a further embodiment Figs. 3, 4 (not shown), so that change in distance between the head 12 and the strip may be compensated for, the erase coil is wound on the same core as the magnetizing head coil. The measured value may be used for process control.
Patent GB-472348-A (GB)
Title: Improvements in self loading fire-arms
IPC: F41A5/18
Filed: 1936-07-03
Abstract: 472,348. Automatic guns. JOHNSTON, J. S. July 3, 1936, No. 18536. [Classes 92 (ii) and 119] The piston 3 of a gas-operated automatic firearm is separate from the piston rod 4 and is engaged therewith by a spigot-andsocket connection 5, 6. Sufficient lateral clearance is provided between the engaging parts to enable the piston to float and to allow of self-alignment of the mechanism. In the construction shown, the spigot and socket are of tapered construction. The gases from the gun barrel 1 are admitted to the gas cylinder 2 by way of a port 8, the cylinder being provided with a gas-delayer 10 comprising a spiral groove around which the gases pass before reaching the piston.
Patent GB-1015257-A (GB)
Title: A method of coating articles with a protective layer of hydraulic cement
IPC: H01C17/02
Filed: 1963-05-10
Abstract: Articles are coated with hydraulic cement by applying a mixture of the cement with an organic liquid or liquids, and subsequently evaporating the organic liquid and supplying water to set the cement. The article may be heated to drive off the organic liquid and then exposed to water vapour or moist air.  The process is suitable for coating resistors.
Patent GB-463620-A (GB)
Title: Improvements relating to motor vehicles
IPC: B62D35/02
Filed: 1935-06-28
Abstract: 463,620. Vehicle bodies and undercarriages. FITZMAURICE, D. F. H. June 28, 1935, No. 18628. [Classes 108 (i) and 108 (ii)] In vehicles having flat under-plates to reduce the air resistance the plate is stiffened or reinforced on its underside by means of ribs extending longitudinally of the vehicle whereby the air flow beneath the vehicle is canalized. As shown the centre part a is corrugated with its sides turned up to join the vehicle sides, the centre part being adapted to be detachably connected to the chassis longitudinals. Transverse stiffening is provided by ribs e on the upper side. ' The rear part l is shown with wider and deeper corrugations while the front plane parts h, f protect the forward part of the vehicle. Fig. 5 shows a modification in which parts of the closure serve to act as radius members for the axle parts. As shown at the rear alternative parts a<2>, a<3> are secured to the axle and flexibly connected to the fixed closure plate at k<2>. Similarly at the front oscillating closure parts h<2> are connected to the front axle and also flexibly to the fixed closure plate at m.
Patent GB-186687-A (GB)
Abstract: 186,687. Stock, A. E. June 30, 1921. Vibration-dampers.-Relates to shock-absorbing devices comprising an inner fixed part, an outer movable part and an intermediate member concentric with the outer member, ratchet teeth or the like on the intermediate member co-operating with pawls &c. carried by the outer part to lock these members together when moving in one direction and so cause them to move with frictional resistance relative to the inner fixed part, and consists in forming the inner fixed part in two portions capable of axial movement only relative to each other and the intermediate member, spring pressure maintaining them in contact with the intermediate member and thus automatically allowing for wear and permitting adjustment of the frictional resistance. As shown, one portion a<1>, Fig. 8, of the fixed inner part A has an inclined surface a and a hub portion a<5> to which the second portion a<2>, formed with a similar inclined surface a, is slidably keyed. An annular intermediate member B formed with a correspondingly inclined surface engages the surfaces a through friction material a<3> and can be rotated in one direction only by the engagement of ratchet-teeth b on its outer periphery with one of two pawls c<2>, Fig. 1, secured in an outer member C, which is secured by a lug c to the part the movement of which is to be checked. Pressure between the parts is maintained hy a spring a' located in a cap a<8> adjustably secured to the hub member a<5>. In a modification, the intermediate member b extends to the hub member a<5>, friction material being disposed at each side of it.