baber/WOPTO huggingface dataset:
Patent GB-1456661-A (GB)
Title: Casting light metal ingots by the direct chill casting process
IPC: B22D27/04
Filed: 1973-01-24
Abstract: 1456661 Continuous casting ALCAN RESEARCH & DEVELOPMENT Ltd 22 Jan 1974 [24 Jan 1973] 3699/73 Heading B3F An ingot 12 of light metal, such as Al-Mn, Al-Mg, Al-Cu, Al-Zn-Mg or Al-Mg-Si, is cast in a horizontal or vertical mould 10 and is directly chilled by coolant (water from a slot 22 in a jacket of an Al mould 10) as it emerges; at one stage it is withdrawn at a speed below the crack propagating speed (C.P.S.) for a sufficient distance to ensure the formation of a crack-free centre in a length of the emerging ingot, the speed then being increased to above the C.P.S. and below the crack-initiating speed (C.I.S.). "Hot short" tendencies of the alloys referred to cause centre cracking of the first few inches of the ingot 12 but unless the C.P.S. is exceeded the crack should terminate. Once it has terminated, however, the speed can be exceeded and as long as the C.I.S. is not exceeded no fresh crack should form. The C.P.S. and C.I.S. values are established empirically. A high initial withdrawal speed with resultant crack might be acceptable if followed by a low speed to terminate the crack before increasing the speed. Figures relating withdrawal speeds to stages of withdrawn lengths in terms of ingot diameter thickness are given together with speed increment details. The compositions of Al-Mg-Si alloys used are also given. An hydraulic ram 20 lowers a starting stool 19 from the mould 10. Wire supports 38 restrict the descent of a float 30 which bears a baffle bar 36 below a pouring tube 28 from a launder 26 to regulate the flow to provide the proper level of metal in the mould.
Patent GB-788361-A (GB)
Title: Improvements in masonry and like drills
IPC: B28D1/14
Filed: 1955-02-09
Abstract: 788,361. Drills. MASON, R. E., HEIR, A. H., and ALDRIDGE, H. Feb. 9, 1956 [Feb. 9, 1955], No. 3888/55. Class 83 (3). A masonry drill comprises a hardened tip 4 secured to a shank 1 around which is wrapped helically a dust-clearing wire 5 which extends substantially the whole length of the shank and has at least one free end. As shown, the forward end of the spring wire is free and the rear end 6 wound tightly around the shank. It is stated that the convolutions of the wire increase in diameter as it is subjected to pressure during drilling, and that variations in pressure tend to vibrate the spring and prevent packing of the dust. In a different construction, the end of the spring 5 adjacent the brazed-in tip of tungsten-carbide may be tightly wound around the shank with the other end free, the spacing and diameter of the convolutions being increased from the tip end to the chuck end of the spring to assist in the clearance of dust.
Patent GB-551079-A (GB)
Title: Improvement in gyroscopic apparatus
IPC: G01C19/44
Filed: 1941-03-22
Abstract: 551,079. Gyroscopic apparatus. PRITCHARD, H. C., and BARNES, J. W. March 22, 1941, No. 3910. [Class 97 (iii)] In a gyro-vertical for use on aircraft or other moving vehicles wherein a tree gyroscope is mounted in substantially neutral equilibrium and is provided with separate gravity-responsive devices for controlling the erection of the gyroscope in the plane of pitch and roll respectively the gravity-responsive devices are constructed so as to produce no precession in the plane of roll when the lateral component of the linear acceleration of the craft exceeds a predetermined value (for example, during a considerable turn) whereas the means for producing precession in the plane of pitch remain operative irrespective of the acceleration of the craft. As shown, the gyro casing I containing a vertical rotor is supported in a gimbal ring 2 by means of pivots 3, 4 and the gimbal ring is mounted on pivots 5 arranged in a fore and aft direction. The rotor is driven by air which escapes from the casing through two pairs of ports 6, 8 and 7, 9 co-operating with pendulous flaps 10, 12 and 11, 13 to produce the erecting torques. According to the present invention the fore and aft pendulous flaps 10, 12 are provided with extension pieces 17, 18 which fully cover the ports 6, 8 when a considerable lateral acceleration occurs thus eliminating all the roll erection action of the flaps under these conditions.
Patent GB-197399-A (GB)
Title: Improvements in conches for the manufacture of chocolate
IPC: A23G1/14
Filed: 1922-02-10
Abstract: 197,399. Fryer, F. G. Feb. 10, 1922. Stationary batch-mixers with reciprocating stirrers.-In a mixing-machine for making chocolate, of the kind comprising a trough in which a rubbing device is horizontally reciprocated, the trough is fitted with grids through which the chocolate passes. The rubbing device may be fitted with prongs, as described in Specification 193,486, and the grids may themselves be reciprocated with the rubbing device. In the form shown in Fig. 1 the trough 1 is fitted with fixed or removable grids 9 held in position by bolts or rivets 12, 13. When the roller 2 is fitted with prongs in front and behind, the prongs pass between the vertical bars of the grid. In the case of a rubbing device comprising two rollers mounted in a reciprocating frame a grid may be fixed across the centre of the trough. As shown in Fig. 10 the grids are pivotally mounted along their upper edges, their lower edges being connected to the roller frame by links 30.
Patent GB-868631-A (GB)
Title: Improvements in readily connectible and disconnectible spigot and socket couplings
Inventor: EUGSTER EDWARD JOSEPH PAUL
IPC: F16L37/088
Filed: 1959-02-04
Abstract: 868,631. Pipe couplings. BRITISH SYPHON CO. Ltd. Oct. 26, 1959 [Feb. 4, 1959], No. 3949/59. Class 99(1). In a spigot and socket coupling of the type having spring locking means 30 retractably projecting into the socket 11, Fig. 1, to interlock with the spigot 4 and an external socket sleeve 28 which is movable axially along the socket 11 to control retraction, against the spring action, of the locking means 30, the sleeve 28 is urged, under the influence of a spring 27, to take up an intermediate axial locking position on the socket 11 in which the locking means is held thereby against retraction, and is arranged to be movable alternatively in either axial direction along the socket away from the locking position and out of locking relationship with the locking means. As shown, the locking means is an interrupted spring loop 30, Fig. 2, having substantially parallel side members arranged to project, in the manner of chords through diametrically oppsed openings 18c in the wall of the socket mouth 18, to engage a peripheral groove 4a in the spigot 4, and the ends formed as arcs of a circle which interact with the wall of a reduced diameter portion of the sleeve 28 of approximately equal diameter to that of the circle on which the loop ends are centred. The spring 27 influencing the sleeve 28 surrounds the socket body between a pair of annular rings 26 which loosely surround the socket body and are trapped between an internal shoulder 28a formed on the sleeve and a circlip 29 located at the opposite end of the socket, the sleeve being a sliding fit on the rings 26. The bores through the spigot and socket are controlled respectively by spring influenced valves, the valves having heads which abut and mutually urge one another off their respective seatings to open the bores through the spigot and socket when the latter are coupled together. Externals crew threads are provided at the non- mating ends of the spigot and socket parts for screwed engagement with other parts of fluid dispensing equipment.
Patent GB-1278765-A (GB)
Title: Improvements in or relating to apparatus for feeding strip-form material, e.g. to a packaging machine
Inventor: CLOUD CHARLES EDWARD
IPC: B65B9/087
Filed: 1970-01-27
Abstract: 1278765 Feeding webs to packaging machines CLOUD MACHINE CORP 27 Jan 1970 3988/70 Headings B8C and B8R In a packaging machine comprising a plow 26 for longitudinally folding a web 23, and a rotary heat sealer 31 having lands 32 for transversely sealing the web 23 to form pockets 33 therein, the position of the lands 32 is sensed by a registration unit 76 and marks (112, Fig. 7, not shown) on the web 23 are sensed by a photocell 100 and the results used to vary the diameter of a deformable roller 52, over which the web 23 is trained, to thereby vary the path of travel of said web 23 to maintain said lands 23 and said marks (112) in registry. The registration unit 76 comprises a cam 86 mounted on a rotating shaft on which the heat sear 31 is mounted, the can 86 operating a microswitch 80. When the microswitch 80 is closed and the photo-cell 100 is detecting a mark (112) current is supplied to a solenoid valve 104 causing the latter to open and supply compressed air to a cylinder 106. A piston 108 is thus extended and pivots a lever 110 which causes the diameter of the roller 52 to vary. The roller 52 comprises a rubber sleeve engaged by two collars 52c, 52d, the latter collar 52d being engaged by the lever 110 to axially compress and radially expand the sleeve 52. The web 23 is supplied from a roll 22 and the tension of the web is controlled by a dancer roller 50 mounted on a brake lever 68 which rotates a brake arm 64 to which a brake belt 62 is secured. The brake belt 62 extends around a brake drum carried by a shaft 24 on which the roll 22 is carried. After the pockets 33 have been formed they. are filled at a filling station 37, separated by a cutter 39 and closed by a pair of heat sealing bars 40.
Patent GB-901119-A (GB)
Title: Improvements in or relating to variable width end attachment
IPC: A44C5/08
Filed: 1961-02-02
Abstract: 901,119. Attaching watches to the wrist. JACOBY-BENDER Inc. Feb. 2, 1961 [July 11, 1960], No. 3993/61. Class 43. A variable width end attachment for a bracelet or the like comprises a base-plate 8, a pair of elements 10, 12 laterally slidably mounted on the base-plate for movement toward and away from one another, resilient means, a spring 14 operatively connected to the elements and urging them laterally away from one another, and a shell 16 operatively connected to the base-plate and covering the elements and the resilient means, the elements projecting laterally beyond the shell, track means 52 on the elements, and parts 78 extending from the shell slidably engaging the track means to define therewith a bearing guide for the elements. The base-plate has a section 18 with apertures for attaching the last two links of the bracelet and a stepped down section with openings 32 which register with slots 40 in the slidable elements. Eyelets engage in the openings 32 and slots 40 for sliding movement of the elements against the action of the spring 14 secured to a hook 42 on each element. The sliding elements have a narrow portion 38 with a channel section with track means 52. The track means forms a guide for depending parts 78 on a shell portion 54. The shell has a narrow portion 56 overlapping the ends of the channel sections. The portion 54 has tags 64, 66 and 68 which engage the base-plate portion 28 and the portion 56 has a tag 76 which engages the base-plate portion 30. A tag 70 on the portion 54 engages the centre of the spring. To attach the bracelet to the watch case, the elements are placed between the lugs by pressing on portion 38, a spring pin or pins being positioned in the channel members.
Patent GB-764649-A (GB)
Title: Improvements in or relating to the bleaching of textile materials
IPC: D06L4/26
Filed: 1955-02-10
Abstract: Textile materials are bleached in a hot chlorite solution which contains at least one ester of an organic acid which is not oxidized under the conditions obtaining, the solution being free from acids, acid salts or compounds giving acids on oxidation. Simple, complex or internal esters of aliphatic, cycloaliphatic or aromatic mono- or di-carboxylic acids may be used.  Ethyl acetate, glycol and glycerol formates and acetates, ethyl tartrate and lactate, ethyl and butyl phthalates and gamma-butyrolactone are specified.  The pH of the bath may be initially between 6 and 8 and the temperature may be between 40 and 150 DEG C.  Non-acid anti-rust or anti-corrosion substances such as nitrates or fluorides may be added.  The materials treated may be of polyacrylonitrile, polyamide, cellulose acetate, polyvinyl chloride, glycol polyterephthalate or cotton fibres.  The chlorite may be of an alkali or alkaline earth metal.  Sodium and potassium chlorites are mentioned.
Patent GB-544531-A (GB)
Title: Improvements in or relating to connections for cycle tube inflators
IPC: F04B33/00
Filed: 1941-03-26
Abstract: 544,531. Connectors for tyre pumps. BARRETT, A. G. March 26, 1941, No. 4042. [Class 99 (ii)] A connector for insertion between a pump and a cycle tyre is a tubular moulding of rubber or other non- metallic material which is reduced and screwed at one end to engage the pumps and at the other end is internally screwed and reinforced for engagement with the tyre valve. As shown, in Fig. 1, the end a' is screwed to engage the pump whereas the other end is internally screwed at b<SP>1</SP> and reinforced with a metal band c flanged at c<SP>1</SP>. The reinforcing band may be replaced by wire or by a stiff canvas insert. When the connector is housed in the end of a hand pump it may be held in frictional contact with its housing by ribs h or g located as shown in Fig. 5.
Patent GB-610084-A (GB)
Title: Measuring system with eddy-current damping means
IPC: G01R11/10
Filed: 1946-02-08
Abstract: 610,084. Electrostatic meters. GES. ZUR FORDERUNG DER FORSCHUNG AUF DEM GEBIETE DER TECHNISCHEN PHYSIK AN DER EIDGENOSSISCHEN TECHNISCHEN HOCHSCHULE. Feb. 8, 1946, No. 4074. Convention date, Feb. 9, 1945. [Class 37] [Also in Group XXXII] In instruments in which a metal leaf or foil moves under the influence of electrical or mechanical forces, the leaf is arranged vertically in the space between the poles of a four-pole magnet so that its motion is damped by eddy currents. As shown in Fig. 2, a permanent magnet 1 has four inwardly-directed and inwardly tapered poles N, S. Perpendicular to the plane containing the longitudinal axis and the two poles N a thin metal foil 3 is suspended and moves under the influence of electrical or magnetic force to a position 31 during which motion the maximum change of flux through the leaf and consequent damping occurs. Fig. 3 shows a Knudsen vacuum meter in which an electrically-heated plate 5 is placed opposite the metal foil 3 and the whole is housed in an air-tight casing 6 which can be screwed by means of a flange 7 to an airtight vessel. The metal foil 3 is deflected in accordance with the degree of vacuum by impact of the gas molecules, the deflection being measured by means of a microscope 11 and prism 13. The motion is damped by eddy currents induced in the foil by the magnetic field of the four-pole magnet 1. In a modification the damping magnet is a four-pole electro-magnet arranged outside an air-tight glass casing containing the foil and heated plate. Fig. 8 shows an electrostatic meter having two movable leaves 15 suspended by means of bars 16 from a torsion thread 17. Each of the leaves 15 is situated in the magnetic field of a four-pole damping magnet 1. Fixed plates 18 are charged from a battery 19 and the potential to be measured is applied to the leaves 15.
Patent GB-548208-A (GB)
Title: Improvements in or relating to internal shoe drum brakes
IPC: F16D51/52
Filed: 1941-03-27
Abstract: 548,208. Internal-shoe drum brakes. BENDIX AVIATION CORPORATION. March 27, 1941. No. 4163. Convention date, March 27, 1940. [Class 103 (i)] A thrust member 43, shown in horizontal section Fig. 2, which is interposed between the wheel-cylinder piston 28 and shoe 12, is pivoted by its rounded end 44 in a hollow of the piston and is formed with a radial flange 45, which butts against the end of the cylinder to form an anchorage for the shoe 12 when that serves as the secondary shoe. A part annular abutment 49 on the thrust member 43 prevents wedging of the shoe between the cylinder and drum. Lateral movement of the member 43 with respect to the shoe 12 is prevented by two projections 46 on flange 45 engaging in a groove 48 in the shoe end. The piston 28 has a lining 33 of synthetic resin, &c. to prevent frictional engagement with the cylinder, which together with the piston may be of aluminium. A sealing cup 34 for the piston is made of synthetic rubber to avoid injury from mineral oil, the junction surface between the bottom and sides facing the piston being of a high curvature to prevent flattening against the cylinder wall a washer 38 and nut clamp the cup 34. A shoecentring device, shown in Fig. 5, comprises spring pistons 51, engaging against the forks of the shoe webs and carried on arms 17 secured to the central spider 15.
Patent GB-113696-A (GB)
Title: Improvements in or relating to Gas-fired Coke Ovens and Muffle and like Furnaces.
IPC: C10B5/02
Filed: 1917-03-24
Abstract: 113,696. Carves, Ltd., Simon-, and Brown, J. H. March 24, 1917. Coke ovens. - In a furnace installation with heating-flues between the walls of adjacent ovens, the air and gas for combustion are heated in passages situated between flues for the outgoing products of combustion. In the coke-oven construction shown, pairs of heating-flues are connected in the form of an inverted-U, and are provided with burner ports at the base of one limb, and outlets for the products of combustion at the base of the other, leading by passages F, f to flues b<1>, b<2> in regenerators situated vertically beneath the ovens. The air and gas are heated in the passages H, h of adjacent regenerators, and flow, through sole flues E, e and burner ports E<1>, e<2> to the heating-flues. The regenerator passages are preferably baffled by chequer brickwork. A portion of the air may be mixed with the gas to be heated, and passages 0 beneath the heating- flues may be provided for the supply of rich cokeoven or other gas.
Patent GB-161390-A (GB)
Title: Combined kitchen and living room grate
IPC: F24B5/06
Filed: 1920-02-12
Abstract: 161,390. Shaw, J. M. Feb. 12, 1920. Combined open fire-places and cooking-stoves; ash-pans. -In a combined sitting - room and cooking stove, of the type having a low open fire - place, capable of being closed, and a superposed oven, an ashp a n is provided having a channel beneath it in which air for combustion is heated. The stove shown comprises doors for closing the front of the firespace, backwardlysloping fire-bars 4, a boiler 6 with forwardly - extending water-legs 7, a superimposed oven 8, and an horizontally-sliding hood 11 with a plate 12, which, when drawn forwardly, allows the gases to pass through it to the flues 9 around the oven. The ash-pan 13 rests on feet,. or on brackets on each side, so as to form a. channel beneath it for air passing to the fire; baffle-plates 15 cause the air to take a circuitouscourse.
Patent GB-629946-A (GB)
Title: Means for synchronizing the movements of independently and remotely controlled mechanisms
IPC: H02P5/50
Filed: 1946-02-12
Abstract: 629,946. Automatic control systems. DEHN, S. G. (Consolidated Vultee Aircraft Corporation). Feb. 12, 1946, No. 4347. [Class 38 (iv)] [Also in Group XXXIII] Apparatus for synchronising the movement of a pair of movable members each actuated by a separate polyphase motor, comprises a phase changer responsive to relative variations in the respective loads, for relatively varying the phase and voltage of the current to the motors, thereby producing relative variations in the torque and speed of the motors. The invention is particularly applicable to the control of the movements of the wing flaps of aircraft to effect an equalization of their displacement. In the example, wings a, a<1> of an aircraft are provided respectively with flaps b, b<1> actuated by twophase motors 10, 10<1> which have one phase energized over lines 17, 18 and the other indirectly from lines 18, 19 through a phase-changer which is actuated automatically under the control of a pair of Selsyn systems. The motors 10, 101 are controlled by switch devices of known type and operate their respective flaps through reduction gears which also drive the associated Selsyn transmitters 42, 42<1> connected over lines 43, 43<1> to receivers 44, 44<1> which drive separate coaxial shafts 39, 40 secured to the oppositely disposed pinions 37, 38, Fig. 2 (not shown) of a differential gearing. The pinions'37, 38 mesh with four planetary bevel pinions 36 mounted on the inner periphery of a gear ring 35 which drives a pinion 34 on the rotor shaft 27<1> of the phase changer 20 provided with yokes 25, 30 located at right-angles to one another and carrying separate coils 24, 29 connected respectively to energize the second phase of the motors 10, 10<1> in accordance with the direction and speed of rotation imparted to the rotor. The rotor winding is excited through slip rings 22<1>, 231 connected to the supply lines 18, 19. If, as a result of icing or other causes, the movements of the flaps or their operating mechanism are retarded or obstructed, unequal loads are imposed on the motors 10, 10<1> causing them to operate at different speeds so that they tend to produce differential displacement of the flaps. These differential displacements act through the Selsyn systems and differential gearing to operate the phase changer to compensate for the difference.
Patent GB-305674-A (GB)
Title: Process for the manufacture of readily soluble acyl celluloses yielding clear solutions
IPC: C08B3/00
Filed: 1929-02-08
Abstract: 305,674. I. G. Farbenindustrie Akt.- Ges. Feb. 9, 1928, [Convention date]. Grant of Patent opposed. Cellulose carboxylates are prepared by effecting the acylation of the cellulose in one stage at a temperature below 50‹ C., with a small quantity of a catalyst in the presence of monochloracetic acid as diluent, in part replacing the fatty acid normally employed. In one example, cotton linters are mixed with glacial acetic acid, monochloracetic acid and acetic anhydride and sulphuric acid in glacial acetic acid is added. The crude acetate solution obtained is saponified after the addition of sulphuric acid and acetic acid of 50 per cent strength. In another example, acetic anhydride is added to a mixture of linters, monochluracetic acid, glacial acetic acid, zinc chloride and thionyl chloride and the crude acetate solution is saponified after adding acetic acid of 50 per cent strength. In both examples, the temperature maintained during the acetylation is 35-40‹ C. Specifications 14255/06 and 203,599 are referred to. The Specification as open to inspection under Sect. 91 (3) (a) refers to the use of chloracetic acid as the diluent generally. This subjectmatter does not appear in the Specification as accepted.
Patent GB-843716-A (GB)
Title: Improvements in or relating to mincing machines for agricultural products
IPC: B02C18/30
Filed: 1958-02-11
Abstract: 843,716. Mincers. SCHNELL, C., [trading as FIRMA CARL SCHNELL MASCH1NENBAU] Feb. 11, 1958 [Feb. 14, 1957; Nov. 28 1957], No. 4411/58. Class 28(2). Meat in a hopper 43 may be repeatedly minced by passing back the mince through a 3-way cock 45 and a return duct 47. The meat is minced by rotating cutters above a perforated plate 49 through which the meat is sucked by ejector vanes 50. The cutters are rotated through a gear box 40. In Figs. 1 and 3 the mincer 1 delivers the meat to a storage hopper 6 from which it drops to a conveyer worm 23 from which it may be delivered to the hopper 6 for repeated mixing or to the hopper 2 by the mincer 1 for repeated mincing or to an outlet 13.