baber/WOPTO huggingface dataset:
Patent GB-695054-A (GB)
Title: Scavenging duct arrangement in two-stroke internal combustion engines
Inventor: GOSSLAU FRITZ
IPC: F02B25/00
Filed: 1951-04-04
Abstract: 695,054. Arrangement of inlet and exhaust ports. NEUE ARGUS GES. April 4, 1951, No. 7851/51. Class 7 (ii). In a scavenging duct arrangement in two-stroke internal-combustion engines comprising one or more exhaust ducts, for example, ducts A1, A2, Fig. 3 and a plurality of pairs of inlet ducts, such as the three pairs of ducts, E1, E<SP>1</SP>1, E2 E<SP>1</SP>2 and E3 E<SP>1</SP>3, arranged in the region of the B.D.C. of the piston 3, Fig. 1, the centre axes of each pair of inlet ducts are adapted to meet one another on a datum line L1, L2 which is perpendicular to the piston head, the datum line lying in that longitudinal centre plane M1, M2, Fig. 3 which is symmetrically disposed with respect to the position of the exhaust duct or ducts and is at a distance substantially equal to one-third of the cylinder diameter from the cylinder wall lying opposite the exhaust duct or ducts; the arrangement also comprises a modification in which only one pair of inlet ducts is employed, the centre axes of these ducts being inclined at such an angle to the cylinder wall that they meet one another on the datum line at a point about one-third of the stroke above the piston head when the piston is at B.D.C. The centre-line of each pair of piston-controlled ducts is at a different inclination and therefore meets the datum line at one of three points P1, P2, P3, Fig. 1, within an area 4. The area 4, wherein the impact of the scavenging air from the various inlet ducts occur, acts a " source of flow " floating within the cylinder that forms the starting point for the numerous air streams indicated in Fig. 1 by which the whole of the cylinder is scavenged and the piston cooled. When only one pair of inlet ducts is employed, they are arranged as shown for the ports E2. E'2.
Patent GB-565230-A (GB)
Title: Improvements in staple fibre cutters
IPC: D01G1/04
Filed: 1943-05-18
Abstract: 565,230. Staple fibre cutters. AMERICAN VISCOSE CORPORATION. May 18, 1943, No. 7880. Convention date, Oct. 22, 1942. [Class 120 (iii)] In a device for cutting staple fibres comprising a knife, a shear member co-operating therewith and means for imparting continuous relative motion therebetween to effect intermittent cutting, means are provided for separating the knife from contact with the shear member during substantial periods of juxtaposition of the non-cutting portion of the shear member with respect to the knife. In one embodiment, a cam 18, formed integrally with the shearing member 2, co-operates with a follower 17 on the spring-urged cutter-carrying member 10 to raise the cutter 8 clear of the member 2 except when cutting is to be effected on tow moving through the passages 3, 4. The cam 18 may, alternatively, be formed as a cut-away portion of the member 2. In a further modification, instead of the cutter-carrying member 10 pivoting about a pin 9, Fig. 1, it may be reciprocated radially of the member 2, an abutment stop being provided to limit the inward motion of the member 10. In a still further modification, the knives 28 are attached to bellcrank levers 29 pivoted to a rotating member 30 and spring-urged at 32. A cam 33 on the stationary shear member 27 co-operates with followers 34 to raise the cutters clear of the member 27 except when a cutting operation is being performed upon the tow moving through the opening 26. To enable differing lengths of staple to be cut, a multiplicity of cutters may be positioned at differing intervals about the shear members 2, 27. Specification 289,028, [Class 120 (iii)], and U.S.A. Specifications 2,182,193 and 2,278,662 are referred to.
Patent GB-622715-A (GB)
Title: Erection seat for building elements
IPC: E04B1/24
Filed: 1947-03-24
Abstract: 622,715. Columns and beams. SAXE, V. R. P. March 24,1947, No. 7999. [Class 20(iv) ] A beam is supported on a column of a build ing by means of the downwardly directec portion 5 of a flange 4 welded to the underside of the beam being received in a U-shaped yoke 6 welded to the side of the column. The sides of the flange are bevelled to facilitate assembly, but rocking after assembly is prevented by forming vertical portions 12 on the flange below the bevelled portions and extending below the lower edge of the yoke. The transverse part of the yoke is formed with a curved recess 17 which receives a bulged portion 18 on the flange to assist in drawing the beam up to the column and to permit a certain rocking during assembly.
Patent GB-222155-A (GB)
Title: Improvements in or relating to spindle apparatus for machines for spinning or doubling yarns and threads
IPC: D01H7/04
Filed: 1923-03-21
Abstract: 222,155. Ferrand, F. March 21, 1923. Spindle apparatus. - In spindle apparatus of the kind described in Specification 207,568, wherein the speed of the spindle is controlled by balls which move under the action of centrifugal force in radial grooves or recesses in discs or the like and coact with a stationary part, the recesses 10 in the disc 9 are inclined at an angle between 30‹ and 70‹ to the horizontal and the balls coact with a disc 12 clamped between a cup 4 and its cap 7. Preferably the recesses make an angle of about 20‹ or 22‹ with the spindle, and radiate from its lower end. The footstep is mounted in the cup 4 and a bearing 8 for the spindle is carried in the cap 7.
Patent GB-538940-A (GB)
Title: Improvements in cathode constructions for x-ray tubes
IPC: H01J35/06
Filed: 1940-05-06
Abstract: 538,940. X-ray tubes. BRITISH THOMSONHOUSTON CO., Ltd. May 6, 1940, No. 8084. Convention date, May 6, 1939. [Class 39 (i)] The thermionic cathode structure of an X-ray tube is mounted on a portion of the envelope formed of some substance which is a good conductor of heat so that the cathode is cooled by the external air. Fig. 2 shows a spiral filamentary cathode 31 mounted in a block 27 with tubular extension 35 secured to a metal disc 33 which has a rim 21 sealed to the glass 25 of the tube. The cathode leads are held in an insulating clamp 61 and are connected by flexible leads 67 to conductors 81 passing through insulating seals 87 attached to the disc 33. The seal between the rim 21 and glass 25 is protected by a tube 97 secured to the block 27. A modification is described in which the block 27 carries several distinct cathodes and in which the disc 33 and rim 21 are in one piece. A stem 34 secured to the disc 33 may carry the terminals of the tube.
Patent GB-379240-A (GB)
Title: Cork facings for rollers, drums, pulleys and the like and the production thereof
IPC: F16H55/48
Filed: 1932-03-18
Abstract: 379,240. Facings for pulleys. BALDAUF, G., 5, Seestrasse, Munich, Germany. March 18, 1932, No. 8149. Convention date, Aug. 7, 1931. [Class 80 (i).] Tubular facings for rollers, drums, pulleys, &c., are composed of two or more layers of cork strips wound in displaced spirals. The facing shown in the Figure consists of three layers of cork strip 1 cemented one on top of the other. The facing is first formed on a mandrel and then heated to 180‹ C. in a close-fitting mould. Under layers of other materials such as cardboard, metal tape, spun and woven material may be used. The rollers may be provided with longitudinal grooves or with a finely pitched thread to secure their facings.
Patent GB-397404-A (GB)
Title: Production of plastic masses, foils, varnish coatings and the like
IPC: C08B1/00
Filed: 1933-03-17
Abstract: Cellulose esters and ethers for use in the preparation of plastic masses, foils, varnishes, &c. are prepared from a soda or sulphate pulp that has been made from a single kind of wood which has been sorted so as to eliminate all pieces belonging to other species.  The esters and ethers so obtained give bright coloured transparent products.  Examples are given of the preparation of cellulose acetate to be worked up, after ripening to give acetone solubility, into foils with the use of methyl glycol and plasticizer, and into varnishes with the aid of acetone, methyl glycol, butyl alcohol and plasticizer; and of nitrocellulose, to be worked up into plates with the aid of butyl acetate and camphor.
Patent GB-171351-A (GB)
IPC: D01H5/06
Filed: 1921-03-16
Abstract: 171,351. Grivel, H. Nov. 10, 1920, [Convention date]. Gill boxes.-In gill boxes with a single set of fallers or a double set of intersecting fallers, the operating screws 1, 2 are provided with ball bearings 3, and in arrangements in which the upper set of fallers is mounted in a pivoted frame 11 so that it can be raised to allow of the removal of the lower fallers 17, the intermeshing driving pinions 9 are provided with convex faces. The frame 11 is pivoted at 12 on the frame 16, and is provided with a prop 13 adapted to engage a stud 15. The ball bearings comprise two sets of balls 7 engaging plates 8 and adjusted by nuts 4, 5.
Patent GB-850272-A (GB)
Title: Improvements relating to electrically propelled vehicles
Inventor: CALVERLEY HENRY BOLTON
IPC: B60L7/04
Filed: 1956-03-16
Abstract: 850,272. Control of D.C. motors. ENGLISH ELECTRIC CO. Ltd. March 11, 1957 [March 16, 1956], No. 8292/56. Class 38 (3). In a traction system, a variable voltage stepdown transformer 10 has secondary windings 10b, 10c, for supplying parallelconnected rectifiers 13, 14. D.C. traction motors M1, M2, are connected in series across the rectifier 13, for driving operation, whilst the rectifier 14 supplies motors M3, M4, in like manner. An equaliser connection 19 is joined to the centre taps of autotransformers 20, 21, and the speed of the motors is controlled by selecting appropriate tappings in the secondary windings of the main transformer 10. For braking, an auxiliary step-down transformer 22 is inserted between the windings 10b, 10c, and the rectifiers 13, 14. Separate braking resistors BR1-BR4 are connected across the armatures of the corresponding motors, and the motor field windings, M1f-M4f are supplied in series with each other from the rectifier 13. The degree of braking is controlled by the same contactors T0-T4 TTO-TT4, as used for control under motoring conditions. Switches are provided for cutting out of circuit any motor which should develop a fault, without breaking the circuit to the field windings of the other motors. Thus if the motor M1 develops a fault, switch CS2 is closed and switches CS1, CS3, are opened. In another arrangement, the primary winding of the auxiliary transformer is energized from an overhead line, and the lowvoltage secondary winding is connected through a braking contactor to the primary winding of the main transformer after a circuit-breaker has been opened. The output of the main transformer is then applied directly to the rectifier 13, Fig. 2 (not shown). Alternatively the secondary winding of the auxiliary transformer is connected between the earth end of the primary winding of the main transformer and a tapping near the earth end. In a further modification, the secondary winding of the auxiliary transformer is connected, during braking operation, across a section of the secondary winding of the main transformer which acts as an auto-transformer, Fig. 3 (not shown). The motor field windings may be supplied from either of the rectifiers, so as to allow braking even when one of the rectifiers has failed. Specification 833,993 is referred to.
Patent GB-512902-A (GB)
Title: Improvements in or relating to clips and other connecting or attachment devices
IPC: B62J15/02
Filed: 1938-03-18
Abstract: 512,902. Band clips; cycle &c. mud-guards. BLUEMEL BROS., Ltd., and BLUEMEL, F. W. March 18, 1938, No. 8332. [Class 44] [Also in Group XXXI] A clip and bracket device for securing mud-guards stays to cycle and like vehicle frames comprises a slotted bracket part 11 (to which a mudguard stay may be connected by a T- headed bolt as described in Specification 230,268, [Class 136 (i)]). with diverging arms 12, 13 one or both of which is resilient, One end of the band 14 is permanently secured to arm 12, and arm 13 has a tongue 16 which may be selectively engaged in one of a series of perforations 15 formed in the band. Tightening is effected by a bolt and nut 17 applied to the arms 12, 13, the resilient engagement of which serving to retain the screw and nut against loosening.
Patent GB-493427-A (GB)
Title: Device for controlling the gliding angle in aircraft
IPC: B64C13/00
Filed: 1938-03-18
Abstract: 493,427. Controlling aircraft. ARADO FLUGZEUGWERKE GES. March 18, 1938, No. 8349. Convention date, Aug. 14, 1937. [Class 4] In aircraft, in which a plurality of flaps are interconnected, adapted to be swung away from the wing and the flap opening in the opposite direction to that of flight is smaller than that opening in the direction of flight, the smaller flap is arranged in front, so that when swung out it partly covers the larger. As shown, flaps 1, 2 normally nested in the underside of a wing are carried by shafts 9, 6 and are rotated in opposite directions through pinions 4, 5, 7, 8. The surface 1 may have an area of about two-thirds and overlap about one quarter the area of the flap 2. In the case of biplanes, flaps may be provided on the upper supporting plane.
Patent GB-687443-A (GB)
Title: Improved fuel injector pump for internal combustion engines
IPC: F02M57/02
Filed: 1951-04-11
Abstract: 687,443. Fuel injection pumps and injectors. GENERAL MOTORS CORPORATION. April 11, 1951 [April 25, 1950], No. 8390/51. Class 7 (iii) [Also in Group XXVIII] A fuel pump 2 and spray nozzle 12 are combined in the same casing, the pump cylinder comprising a bushing 48 which forms an annular fuel supply chamber 52 with the casing and holds under axial pressure the cylindrical valve cages 46, 38, of a pair of spring-loaded check valves 20, 44 provided in series between the pumping chamber 50 and the nozzle 12. The annular fuel supply chamber 52 is lined with a sleeve 69 of hard material and connected to fuel inlet and outlet passages 120, 122 fitted with filters 124. The pump casing comprises two parts 4, 6, which when screwed together force the pump cylinder 48 down on the valve cages 46, 38 to hold them under pressure against the nozzle part 12. Rotation of the cylinder 48 is prevented by flats 62 on an extension 56 thereof engaging corresponding flats in a flange 58. The plunger 70 is rotated to control the fuel supply by means of a cage 98 engaging flats 108 on the upper part of plunger 70 and provided with a control lever projecting through a slot in the pump casing. A yoke 130 engaging a shoulder 132 on the pump casing is attached to the cylinder head 128 and holds the device in position.
Patent GB-297780-A (GB)
Title: Improvements in the direct production of rubber articles from aqueous dispersion of rubber and the like vegetable resins or compounds thereof
IPC: C09D5/44
Filed: 1927-03-26
Abstract: 297,780. Klein, P., Szegvari, A., McKay, R. F., Hayes, C., and Trobridge, G. W. March 26, 1927. Latex, treating.-In the electrophoretic deposition of rubber from dispersions having a content of hydroxyl ions in insufficient quantity to produce gas formation on the anode as described in Specification 257,885, the conductivity of the dispension is altered by the addition of electrolytes free from hydroxyl ions, or by removing electrolytes from the dispersion and replacing them by electrolytes free from hydroxyl ions. Under these circumstances, the hydroxyl ion concentration may be increased by addition above the previous limits without gas formation. These additions are made to influence the character of the deposit, which otherwise may crack or slip off the moulds or exhibit a cheese-like structure. or may be too hard or too soft, after drying. Electrolytes whose anions form water-soluble compounds with the anode, such as alkali chlorides with zinc anodes prevent sticking of the rubber to the anode, and produce softer deposits. An electrolyte having polyvalent cations, for example calcium chloride, increases coagulation, and polyvalent anions such as alkali ferrocyanide or phosphates increase the toughness of the deposits. Examples of suitable conductivity and alkalinity are given in the Specification. Specification 246,532 also is referred to. The Provisional Specification describes also the treatment of the moulds, or of the deposits after formation but before drying for the same purpose.
Patent GB-548429-A (GB)
Title: Improvements in and relating to means for transporting biscuits or like articles
IPC: A21B5/02
Filed: 1941-07-03
Abstract: 548,429. Rotary conveyers. MACFARLANE, R. F., and DUMBLETON, C. July 3, 1941, No. 8409. [Class 78 (i)] A raising or lowering device for biscuits or like fragile articles comprises a drum 2 of relatively large diameter, say 5 feet, and furnished with a padded surface 14. The padding may be supported by a framework or cage of spaced wires carried by end discs. Around part of the periphery of the drum run two endless bands between which the biscuits are received. The outer band 26 has a lower guide roller 27 which forms a reception area 26a for the biscuits emerging from an oven conveyer 1. An upper guide roller 27, tensions the band by a spring or weight 30, and laterally adjustable troughs 36 track the band. The inner band 21 is tensioned by a guide roller 22 and passes over a delivery roller 23, or a knife edge, to transfer the biscuits from a delivery area 21a on to a conveyer 24. The drum 2 is driven by a motor 19 with a surface speed equal to that of the oven conveyer 1, and the bands 21, 26, which may be of flannel, are driven solely by friction from the drum 2. A supplementary conveyer 32 bridges the gap between the conveyer 1 and the area 26a, the receiving edge of this conveyer consisting of a knife edge 33 which can be turned upward to allow the biscuits to be shot at will down a shoot 37. The various parts may move in directions which will raise or lower the biscuits, and may be multiplied to transfer throughout the height of a building.
Patent GB-805187-A (GB)
Title: Improvements in iron-nickel-chromium alloys
Inventor: MARSH PETER RONALD
IPC: C22C38/60
Filed: 1957-03-14
Abstract: Alloys suitable for the production of heat-resisting castings such as salt bath containers have compositions within the following range, in per cent by weight: Ni 32.0-38.0, Cr 14.0-20.0, C up to 1.5, Si 1.0-2.0, Nb 1.0-3.0, N 0.05-0.2, Se 0.01-0.1, Fe the balance.  Cu 0.1-1.5 and/or Mn 1.0-2.0 may also be present in the alloys.  Nb, which may contain a small amount of residual Ta, may be added as the metal or as ferroniobium.  N is preferably added as nitrogenous ferro-chromium and Se as ferroselenium.
Patent GB-578907-A (GB)
Title: Improvements in aerial barrages
IPC: F41H11/04
Filed: 1937-03-23
Abstract: 578,907. Aerial barrage cables. GRAHAM, A. March 23, 1937, No. 8512. [Class 9 (ii)] An aerial barrage cable has a series of spaced bombs 4 with one-way inertia explosive or other links 5 arranged above or below the bombs to cause the cable to part below or above an impacting aircraft X. As shown the bombs 4 are arranged above the links 5 and the inertia link Fig. 6, comprises a spring-controlled downwardly moving weight 7 having a firing-pin to explode a charge 9 which ruptures the cable below the impacting aircraft. The cable above the aircraft remains intact, a detent 10 preventing the weight moving under the reflected shock wave. By reversing the position of the weight 7, the cable may be parted above and remain intact below the aircraft.
Patent GB-350065-A (GB)
Title: Improvements in lifting jacks
IPC: B66F1/06
Filed: 1930-03-17
Abstract: 350,065. Gearing for conveying reciprocating motion. HAGGAS, W. R., Oakworth Manor, Keighley, Yorkshire. March 17, 1930, No. 8529. [Class 80 (i).] The leg of a ratchet jack or plunger of a hydraulic jack mounted on a vehicle is extended by ratchet or pump mechanism operated by a cord wound on a screw-threaded spring-drum. The jack casing 3, Fig. 1, is secured to the vehicle axle 2 and has-a lateral housing 5 carrying a cylindrical extension 6a in which is mounted a drum 6 connected to the housing by a coil spring 15. The drum is rotated by a cord 17 wound thereon and has a screw-threaded spindle 13 engaging a nut 14 mounted in the housing. The spindle engages a pair of parallel levers 9 carrying a pawl 7 engaging ratchet teeth on the leg 4, a detent pawl being mounted in the housing. By alternately pulling and releasing the cord by means of a ring 19 the drum is rotated to oscillate the parallel levers and cause the leg to be extended. In a modification the housing is modified and the retaining pawl arranged above the operating pawl. As applied to a hydraulic jack the ram cylinder 3, Fig. 3, has a lateral housing 24 enclosing the drum 6 which has a screw-threaded bore engaging the externally threaded pump cylinder 23, the pump piston 25 extending downwards from the drum. The operating cord 17 is wound round the drum which has an apertured flange 32 sliding on guide-pins 31, one end of the coil spring 30 being con. nected to the pins and the other end to the cylinder. By pulling and releasing the cord 17 the drum is rotated and the piston forces pressure fluid through ports 27 to the top of the ram cylinder so extending the ram 29. :
Patent GB-768201-A (GB)
Title: Improvements relating to forced flow once through tubulous vapour generating and superheating units and to the starting of turbines arranged to be supplied with vapour from such units
IPC: F22G5/12
Filed: 1955-03-24
Abstract: 768,201. Forced-flow steam boilers. BABCOCK & WILCOX, Ltd. March 24, 1955 [March 26, 1954], Nos. 8562/55. Class 123(2). A forced-flow, once-through steam boiler comprises serially-connected tube sections viz., a preheater 7, an evaporating section 8, a transition section 9, a primary superheater 10 and a secondary superheater 12, each section being composed of several parallel tubes, only one of which is shown in the Figure. The preheater inlet header 16 is supplied with water through a feed regulating valve 6 and pipes 4, 5 by a pump 3. A separator 11 is arranged in each parallel tube between superheaters 10, 12 to remove water from steam when individual tubes of the transition zone 9 and super heater 10 are being flushed, each separator being connected by pipes 22, 23 to a common collector vessel 21. The final outlet header 20 is connected by a pipe 13 to a turbine 15, variations in the steam pressure in the pipe 13 acting through control means 47, 48 to regulate the feed valve 6. When the turbine is being started, initially only about 5 per cent of the full load steam output is passed therethrough so as to limit heat stresses in the turbine: Under this condition, to ensure adequate flow velocities in the heated tubes of the boiler without the use of an auxiliary starting condenser, a temporary return flow circulation is established through the heated tubes, a circulating pump 25 drawing water from the vessel 21 and delivering it through line 26 and non-return valve 27 to the tube system. A constantlevel is maintained in the vessel 21 by passing cold feed water through a heat exchange coil 34 in the vessel, the flow of feed water, which is controlled according to the level by a valve 35 actuated by a float 36, determining the amount of steam which is condensed in the vessel and hence the level therein. The head exerted by pump 25 is such that as soon as the boiler load increases to that at which adequate flow velocity occurs in sections 7 .. 10, the valve 27 closes and an interlocked valve 28 opens. Pump 25 then delivers water through pipe 29 and individual pipes 31 fitted with non-return valves 32 to respective tubes of superheater 10 in such quantity that slight superheating occurs at the superheater outlet. With further increase in load the valves 32 close and the boiler then operates normally.