baber/WOPTO huggingface dataset:
Patent GB-1105435-A (GB)
Title: Improvements in hydraulic transmissions
IPC: F16H61/46
Filed: 1965-08-20
Abstract: 1,105,435. Hydrostatic transmissions. INTERNATIONAL HARVESTER CO. 20 Aug., 1965 [8 Sept., 1964], No. 35797/65, Heading F2D. In a hydrostatic transmission the pump and motor swash plates 17, 23 are tilted by sets of hydraulic rams 19, 20 'and 25, 26 controlled by servo pilot valves 30, 31 supplied through pipelines 36, 37 with pressure liquid from pressure regulators 39, 40 mechanically interconnected through cams 121, 121<SP>1</SP> with the control lever 66 of a manual selector valve 42. In the arrangement shown the pump and motor units and control 'valves -'30,' 31 are as described in Specification 1,085,556, pressure liquid for the control rams 19, 20 and 25, 26 being supplied by low volume piston pumps 27, 28. High-pressure liquid for the system is supplied by a pump P through a line 117 to the regulators 39, 40 which are also connected to a pressure regulating valve 41 and a by-pass valve 43. The latter, in addition to shortcircuiting the high and low-pressure circuits when the selector valve 42 is at neutral setting, also functions by means of an axially slidable pin 102 in the valve spool 85 to maintain the working pressure at a higher value for reverse drive than for forward drive. The control cams 121, 121<SP>1</SP> engage plungers 106, 106<SP>1</SP> acting on the regulating valves 39, 40 through loading springs 116, 116<SP>1</SP> and are mounted on a shaft 122 rotatable by an arm 123 connected by a link 126 to a pin-and-slot connection 68 with the end of the selector valve spool 64. In operation, movement of the control lever 66 into the forward or reverse drive ranges rotates cams 121, 121<SP>1</SP> to vary the axial settings of plungers 106, 106<SP>1</SP>, the springs 116, 116<SP>1</SP> moving valves 39, 40 into positions to regulate the pressures in lines 36, 37 to the desired values for adjusting the pump and motor swash plates at predetermined angles for the speed ratio corresponding to the setting of the control lever.
Patent GB-1151527-A (GB)
Title: Improvements in and relating to Tape Recorder Sound Systems
Inventor: FRIEDEL RICHARD WHITTINGTON
IPC: G09B5/04
Filed: 1966-08-10
Abstract: 1,151,527. Tape recording apparatus. R. W. FRIEDEL. 10 Aug., 1967 [10 Aug., 1966], No. 35894/66. Heading G5R. A tape recording machine comprises a first electric motor capable of being coupled by friction gearing to drive a capstan at a first constant speed, a second electric motor continuously coupled with the capstan and arranged when energized to drive the capstan at a second, different, constant speed, and means controlled simultaneously with the energization of the second motor for disengaging the friction gearing. As shown, one of the slave (magnetic) machines of a language laboratory includes a plate 40 carrying laterally-displaceable bearings of two spool spindles 41, 42 and a main drive motor 43 having a spindle with drive surfaces 44 and 45 of different diameters. Playback or normal recording.-Surface 45 on the drive spindle drives the flywheel 46 of a capstan 48 through a spring-loaded friction wheel 47. The tape passes from a spool on spindle 42, past a head assembly, round capstan 48 and on to a spool on spindle 41 (tape, spools and head assembly not shown). The tape is pressed against capstan 48 by a pinch wheel 50 mounted on a movable carrier 51. Rapid wind or re-wind.-Either spindle 41 is moved laterally, to bring a drive surface 56 on a wheel on spindle 41 into contact with an intermediate pulley 57 contacting drive spindle surface 44, or spindle 42 is moved laterally to bring a drive surface 58 on a wheel on spindle 42 into contact directly with drive spindle surface 44. Higher-speed recording.-When. the " highspeed " button of array 52 is depressed, pinchwheel carrier 51 is moved so that a pin 65 extending from it operates a microswitch 64. After a delay of, e.g., half a second during which time the tape and spools are accelerated from rest by the normal-speed driving means, microswitch 64 energizes a solenoid 66, which disengages friction wheel 47 and operates a switch 67. Switch 67 switches on an auxiliary motor 60 which drives (61, 62) a further pulley 63 on the capstan. At the same time the pinch wheel is brought into contact with the capstan. The tape speed is now not less than twice, e.g. from four to ten times (preferably four times) the normal speed. Programme material on a master tape on the master machine is now reproduced there, and the signal is transmitted to the slave machine for re-recording on the first track of the slave tape. Preferably, for languagelaboratory use, microswitch 64 is omitted from the slave machines, and the operation of the master and slave machines is synchronized by providing switching means on the master console which control the operation of the solenoid 66. Parts required for normal-speed forward movement may be omitted from the master machine.
Patent GB-815233-A (GB)
Title: Improvements in or relating to apparatus for photographically recording the variations with time in the magnitude of a given variable
IPC: G01R13/20
Filed: 1955-12-15
Abstract: 815,233. Photographic recording apparatus. GENERAL ELECTRIC CO. Ltd., BARKWITH, A. D. B., and THOMAS, E. R. March 15, 1957 [Dec. 15, 1955], No. 36074/55. Class 98(1) Apparatus for photographically recording the variations with time of a given variable consists of a cathode ray tube, means for producing a spot on the face of the cathode ray tube by an electron beam during succesive time spaced periods, means for moving the spot across the face of the cathode ray tube in a given direction, means for displacing the spot substantially at right angles to the given direction to an extent proportional to the instantaneous magnitude of the variable, and means for photographing, at least during each said period, the face of the cathode ray tube, on a film which is moving in the opposite direction to the component of the motion of the spot over the surface of the film due to its movement. across the face of the cathode ray tube in the given direction. As shown in Fig. 1, the face 2a of a cathode ray tube 2 is photographed by a lens 3 on to that portion 4a of a film 4 which lies within a film gate 5. The film is wound from a spool 6 to a take-up spool 7 by an electric motor 11. As shown in Fig. 2, the cathode ray tube has X-deflection plates 20 and Y-deflection plates 21, and a post-deflection accelerator electrode 22. A double triode 26 is connected in a trigger circuit producing recurrent pulses which are applied to double triode 27 connected in the circuit which has the effects of shortening the pulse. These pulses are applied across a capacitor 29 and a resistor 30, and the resultant voltage appearing across the resistor 30 has a trapezoidal waveform and is applied to the X-deflection plates 20. This. causes the spot produced by the electron beam to travel across the face 2a of the cathode ray tube once during the occurrence of each pulse. The Y-plates 21 of the cathode ray tube 2 are connected to a paraphase amplifier 32, to the input connection 33 of which a voltage is applied which is a measure of the variable to be recorded. As a result, the spot traces out a waveform on the face 2a of the cathode ray tube 2 during the period of each pulse. The output of the paraphase amplifier is also applied to a circuit including a double diode 35 whereby a voltageis applied to the modulating electrode 36 of the cathode ray tube 2 so that the intensity of the spot is increased during the application of the input voltage signal to the input connection 33. As the spot moves over the face of the cathode ray tube, its image will move over the surface of the portion 4a of the film in the firm gate 5, but in order to spread out the image of the waveform on the film, and to avoid blank spaces between successive images, the film is given a movement in the direction opposite to the direction of movement of theimage of the spot imparted by the time base impressed on the X-deflection plates 20.
Patent GB-744733-A (GB)
Title: Improvements in or relating to a method of and device for forming multi-layer fibre fleeces
IPC: D01G25/00
Filed: 1953-12-30
Abstract: 744,733. Forming fibre fleeces. LOHMANN, J., BARTH, G. A., and LOHMANN, K., [trading as LOHMANN KOMM.-GES.]. Dec. 30, 1953 [Dec. 31, 1952], No. 36211/53. Class 120(1). A multi-layer fleece is formed by forwarding a single-layer fleece V, Fig. 6, on a first conveyer belt I and feeding successive severed lengths F of such fleece transversely on to a second conveyer belt II which delivers them in contiguous arrangement on to a continuous fleece moving on a third conveyer belt III. Belt I is carried on a first carriage which is reciprocated along fixed rails 13, Fig. 1; belt II is carried on a second carriage reciprocated along rails 23 on a third carriage which is itself reciprocated along fixed rails 21. The movements of the belts and carriages are so correlated that the following sequence of operations takes place: (a) the first carriage moves in direction x so that a length of fleece V is drawn off a roll 10 and belt I overlies belt II in the dotted position 18, Fig. 1, and as shown in Fig. 5; (b) the first and third carriages retract and belt I advances to lay the length of fleece on belt II; a severing device associated with belt I operates to leave a severed length F of fleece on belt I, Fig. 6; (c) while the first carriage moves forward again to repeat the cycle, the second carriage and belt II move in opposite directions to lay the fleece length F transversely on to a continuouslymoving fleece, or between two fleeces, on belt III, Fig. 7; the second and third carriages then move belt II back to the Fig. 5 position. The timing is such that the fleece lengths Fare deposited contiguously on belt III.
Patent GB-821930-A (GB)
Title: A process for the manufacture of a coated sheet material suitable for use for packing purposes and in moulds
IPC: D21H19/84
Filed: 1956-11-28
Abstract: A material suitable for use for packing purposes and in the construction of moulds is manufactured by coating paper or cardboard, e.g. Kraft paper, upon one surface with a swollen water-insoluble layer of alginic acid or of a compound thereof, and upon the other surface with a layer which is impermeable or substantially impermeable to water and water vapour.  The impermeable layer may be, e.g. a synthetic resin such as polyethylene, polyvinyl chloride, polystyrene, polyvinylidene chloride and mixed polymerization products, a mixture of polyethylene with paraffin wax, chlorinated rubber, or bitumen. If polyethylene is used, it may be bonded to the paper or cardboard by heat sealing, or may be spread on to the paper in the molten condition.  The alginate layer may be applied by treating the paper with a solution of a water-soluble compound of alginic acid, e.g. an alkali metal or ammonium salt thereof, and converting it to an insoluble compound by subsequent treatment, e.g. with a salt of an alkaline earth metal or heavy metal (Ca, Ba, Sr, Zn, Cu, Al, Cd, Co, Cr, Ni and Mn are named).  It is advantageous to use a hygroscopic salt, e.g. CaCl2, or to add a hygroscopic substance, e.g. glycerine or glycol, to the alginate solution.  The alginate may also be rendered insoluble by treatment with an acid in solution or as a vapour.  Alternatively, the paper or cardboard may be first treated with a solution of the precipitating agent (e.g. CaCl2) and subsequently sprayed with a solution of soluble alginate. In another method, the paper is treated with a solution which contains alginate derivatives, metal salts which yield water-insoluble metal alginates and nitrogencontaining substances, e.g. ammonia or aliphatic amines, which form complexes with said metal salts.  In this process the complex-forming substance is removed, e.g. by heat.  The alginate layer may be modified with e.g. starch, dextrin, cellulose ethers, mucilages, gum tragacanth, protein hydrolysates, pigments or powdered metals.  The application of the alginate layer may be delayed until shortly before the material is used, or until after it has been made into bags, moulds or the like.
Patent GB-944912-A (GB)
Title: Improvements relating to printing cylinders
IPC: B41F27/12
Filed: 1959-10-27
Abstract: 944,912. Printing-machines. E. A. TIMSON. Jan. 16, 1961 [Oct. 27, 1959], No. 36391/59. Heading B6C. A rotary printing machine cylinder of the kind carrying at least one flexible type plate, blanket, or tympan S of flexible material and having an axially extending channel 4 therein is provided with a fixed sheet-anchoring bar 9 and a movable sheet-anchoring bar 10 at sides 5 and 6 of the channel 4 respectively, the bar 10 being urged by helical compression springs 20 towards the bar 9 so as to draw the sheet S  around the cylinder under a yieldable tension. The bar 9 is mounted on bearing blocks 11 by means of a pair of pivot pins 13 and the bar 10 is similarly mounted on blocks 15, the spacing between the bars 9, 10 being adjustable by turning screws 19 which pass through the bar 9. The flexible material S is reinforced at opposite ends by strips 22 and screws 23 engage holes in the strips and in the bars 9 and 10 respectively.
Patent GB-822173-A (GB)
Title: Turbine units
IPC: F01D25/12
Filed: 1955-12-20
Abstract: 822,173. Air turbine units. UNITED AIRCRAFT CORPORATION. Dec. 20, 1955 [Dec. 29, 1954], No. 36474/55. Class 110 (3). [Also in Group XXXIV] In an air turbine unit, a turbine rotor is mounted on a shaft and the exhaust from the turbine passes through an exhaust pipe, the whole bearing structure in which the shaft is mounted being located within the exhaust pipe in heat exchange relation with the turbine exhaust whereby the bearing structure is cooled. The turbine unit shown comprises a turbine rotor 26 and a fan 18 mounted on a shaft 20 and disposed within a housing 12, 14, 16. Air from the compressor of a jet propulsion engine is supplied to the turbine inlet 30 and in expanding through the turbine the air becomes cooled, the cooled air passing through outlet 37 to compartments of an aircraft. The turbine shaft 20 is mounted in bearings 52, 54 which are disposed in a bearing sleeve 46 which in turn is disposed within a cylindrical portion 48. The portion 48 is supported by three radial webs from the housing 38 and defines therewith an annular exhaust passage 36. The inner races of the bearings 52, 54 are secured to the shaft 20 by means of nuts 58, 56, while the outer races are positioned by means of spring-loaded sleeves 63, 65, apertures being formed in the sleeves adjacent the bearings to permit passage of lubricating oil from the lubricator 84, lubrication holes also being formed in the cylinder 48 and bearing-sleeve 46. A nut 66 is screwed on to the bearing sleeve 46 and serves to compress the spring 62 and to position the sleeve 46 and the turbine rotor 26. A seal 70 is provided adjacent the turbine rotor whereby the bearings 52, 54 are substantially sealed. Air from the compressor of the jet propulsion engine is passed through a heat-exchanger where it is pre-cooled by air supplied by the fan 18. Specification 731,781, [Group XXXIV], is referred to.
Patent GB-930145-A (GB)
Title: Improvements in brown sugar in powdered form
Inventor: LACHMANN ALFRED
IPC: C13B50/00
Filed: 1959-10-28
Abstract: A pulverulent brown sugar product resistant to caking and useful in confectionery and bakery goods manufacture is produced by drying granular brown sugar, e.g. as described in Specification 930,146, to convert the molasses layer on the sugar crystals to a dry, solid, non-sticky coating, and pulverizing the dried product. The process is conveniently carried out by continuously passing the sugar through a rotary drum type dryer whilst simultaneously passing hot air, e.g. at 175 DEG  to 180 DEG  F., therethrough; the heated sugar is then cooled in a similar rotary drum dryer through which cool air, e.g. at 80 DEG  F., is passed, before being pulverized.  A vacuum oven may alternatively be used for drying the sugar.
Patent GB-428636-A (GB)
Title: Improvements in or relating to a process and apparatus for producing and treating metal articles
IPC: B21D39/04
Filed: 1933-12-29
Abstract: 428,636. Overlap joints with yielding inner pipe expanded. BALDWIN, O. H. Fairmount, Salcombe, Devon. Dec. 29, 1933, No. 36650. [Class 99 (i)] [See also Group XXII] A threaded collar &c. 6 is secured to a pipe bend 4 by arranging the parts in a recess 2 in the body 1 of a press and pressing the two together by means of an axial plunger whereby a serrated threaded &c. surface 5 on one of the members is pressed into the contacting surface of the other member. Part of the opening in the collar &c. 6 may be square as at 8, Fig. 3, so that the tube when fixed therein cannot turn. In the modification, Fig. 6, the collar 6 has a tapered recess provided with a fine thread 12 into which the end of the pipe bend 13 is expanded by a taper punch. As applied to a T-piece, Fig. 7, the collars are attached by pressing as above and the branch 47 secured by means of a nipple 49 screwed into the body 45 which is faced at the part adjoining the hexagon 48. By another method, Fig. 9, the collar 6 and pipe 4 are pressed together by a plunger 7 having a shoulder 17 engaging the ends of the pipe and collar, the latter being received in a taper recess 24 acting to press the collar against the pipe which is allowed to descend during the operation. The pipe union, Fig. 10, comprises a pipe and collar of the kind shown in Fig. 6, and a similar pipe with expanded end connected in line by a sleeve nut 36 with the aid of conical rings 35. Specification 13284 /84, [Class 99], is referred to.
Patent GB-1309823-A (GB)
Title: Groove cutting apparatus
IPC: B23C3/34
Filed: 1970-07-29
Abstract: 1309823 Milling arcuate grooves BROWN BOVERI & CO Ltd 29 July 1970 [31 July 1969] 36687/70 Heading B3K In a method of finish milling preformed arcuate grooves in the periphery of, e.g. fir tree grooves in a turbine rotor 9-Fig. 1, two face cutters 1, 2, which are simultaneously rotated about centres M1, M2, are fed into the workpiece along the centres so that cutter 1 cuts flank 8 of the groove, and cutter 2 cuts the flank 7, the centres M1, M2, of the cutters being moved during cutting until they coincide with centre M, whereupon the required width of groove is reached, the centres then being moved apart so that the cutters can be retracted from the finished groove. Cutters 1, 2, are supported in a milling machine headstock by means of bearings 5, 6, Fig. 3, mounted in carrier rings 3, 4, which are carried in arms 11, 12, pivoted to a base plate 14 by a pin 10. The pivoting so as to vary the positions of centres M1, M2, is carried out by cams 17, operated by a gear motor 18, and the cutters are rotated by a driver disc 24 having a centre M, the disc being connected to cutters 1, 2, by links 19, 20. Cutters 1, 2, may have inserted tool tips brazed or screwed thereto.
Patent GB-335457-A (GB)
Title: An improved method of clearing cotton fibres out of digesters
IPC: D21C7/08
Filed: 1929-12-03
Abstract: 335,457. British Bemberg, Ltd. Dec. 15, 1928, [Convention date]. Digesters. - Cotton fibres are cleared out of a digester 1 after the treating liquid has been run off by agitating them with fresh liquid by the introduction of compressed air through-pipe 3 until the material is evenly distributed and then forcing them out of the vessel through a downwardly extending pipe 4 under the action of the compressed air which collects in the vessel. At the commencement of the agitation, cock 5 is open to allow compressed air to escape. When the material is to be forced out, cock 5 is closed and cock 6 is opened. The cock 7 serves for draining and, if a sieve be placed in front of it, can be used for withdrawing the treating liquid by suction.
Patent GB-325914-A (GB)
Title: Improvements in larders
IPC: A47B71/00
Filed: 1928-12-14
Abstract: 325,914. Watson, T. Dec. 14, 1928. Cabinets. - A ventilated larder is provided with a wooden door frame capable of being adjustably fixed. The larder 1 is made of ceramic or like material, such as glazed stoneware or fireclay, and is provided with a door frame 3 which is hung on the top lefthand screw, adjusted until the stiles are at right-angles to the shelves 6, and fixed by tightening a screw passing through a slot in the diagonally-opposite corner. The door 9 may have an insulating panel formed by two or more plates of wood, metal, or other material, the edges of which are turned over so that an air space is formed between the plates; and the top of the door has a ventilating-opening closed by a gauze plate. The larder may be built into a wall, and an elbow ventilator 12 is carried by the rear wall of the larder. Specifications 144,085 and 239,655 are referred to.
Patent GB-910418-A (GB)
Title: Umbrella
IPC: A45B25/06
Filed: 1959-11-03
Abstract: 910,418. Umbrellas. MAZZEO, F. J. Nov. 3, 1959 [Dec. 24, 1958], No. 37243/59. Class 134. Also in Group XXII] A retainer, for the sliding stretcher carrier of an umbrella or the like having a hollow shaft, comprises a one-piece housing 37, Figs. 2, 11, having a hollow cylindrical portion 37a merging into a portion 53 conforming to the curvature of the shaft and having an elongated hole 50 therein and wings 40 extending laterally therefrom. An angular finger-piece 26 has one end adapted for pivotal engagement with the wall of the shaft and the other end slidably received in the housing through the elongated hole and urged outwardly by a spring 39 within the housing when the latter is mounted in the shaft and welded thereto at the wings 40. As shown, the retainer holds the carrier 21 in its uppermost position, a similar, but inverted, retainer being provided adjacent the umbrella handle. The one-piece housing may be formed from the blank shown in Fig. 8 by bending extensions 47 to form semi-cylindrical portions and bending the central portion of the blank about the wings 40 so that edges 51, 52 meet.