baber/WOPTO huggingface dataset:
Patent GB-1425705-A (GB)
Title: Manufacture of synthetic filaments
IPC: D01D5/088
Filed: 1972-06-28
Abstract: 1425705 Potentially crimpable filament and apparatus therefor IMPERIAL CHEMICAL INDUSTRIES Ltd 14 June 1973 [28 June 1972] 30255/72 Heading B5B A potentially crimpable synthetic linear polymer filament is made by melt spinning a plurality of filaments, preferably polyesters, polyamides or polyolefins, evenly cooling the filaments in a gas stream, preferably air, and further asymmetrically cooling by contacting the filaments with a continuously renewed thin film of liquid, preferably water, so that only one side of the filament is contacted with the liquid. Suitable apparatus is shown in the Figure in which filaments 9 are extruded through a spinneret 3. Air passes up tube 4 and radially outwards through perforated tube 1 and porous shroud 2 to cool the filaments 9. Water passes up through tube 8 into annular chamber 7 from where it permeates through porous member 6 to form a thin film on the surface 5. Adjustment of the water flow rate to give a coarse selection of crimpability followed by adjustment of the air flow rate gives a very fine control on the crimpability which is then developed by drawing in liquid or steam followed by heat relaxing or heat setting. Polyethylene terephthalate filaments are produced in the examples.
Patent GB-602965-A (GB)
Title: Improvements in hand-propelled vehicles
IPC: B62M1/14
Filed: 1945-11-13
Abstract: 602,965. Hand-propelled vehicles. HILL, C. S. Nov. 13, 1945, No. 30369. [Class 136 (ii)] In hand-propelled vehicles of the kind in which two independently movable hand levers are provided for propulsion purposes, each of which is connected by a spring-tensioned driving chain to a sprocket wheel which drives a back wheel of the vehicle through a free-wheel clutch, the vehicle is provided with a back axle 18 which is rotatable and has a driving connection with a rear wheel 26, each of the hand levers 34 being connected by its associated driving chain 37 to a sprocket wheel 38 mounted on the axle and transmitting the drive through a free wheel clutch. The vehicle is formed of two tubes 10 and 11 connected by castings 12, 13, 14 and a transverse tube 16 which passes through casting 14 and at each end of tube 16 is clamped a dependent casting 17 drilled to receive a rotatable rear axle 18. Tube 11 carries a rotatable sleeve 21 which is integral with the fixed part of a steering pivot mounting 22, the movable part carrying a fixed front axle 23 having wheels 24. Two larger wheels 25, 26 are mounted on the axle 18, wheel 26 being rotationally coupled by a dog clutch comprising dogs 27 on the wheel hub meshing with dogs on a sleeve splined to the axle and urged inwardly by spring 33. The dogs can be retained in a disengaged position. The vehicle is propelled by a pair of levers 34 mounted on each end of shaft 35. Each lever carries a sprocket sector 36 and a pair of roller chains 37 which pass round sprockets 38, and have a tension spring 41. A seat 43 is slidably mounted on the frame tubes the seat being provided with grooved rollers 45. A brake having a drum 52 secured to the axle has shoes mounted on plate 53 connected by a torque arm to cross tube 16. A cam is actuated by lever 55, rod 56 and an arm integral with plate 58 mounted on shaft 35. A pawl 61 connected to plunger is adapted to engage ratchet when plunger is depressed by means of button 63 so that lever applies brake. Foot rests 65 are provided on boot axle 00 and have toe clips 60. The vehicle is steered by suitable foot movements.
Patent GB-1100762-A (GB)
Title: Improvements relating to oscillators
IPC: H03B11/10
Filed: 1965-07-16
Abstract: 1,100,762. Inverting. TELEFONAKTIEBOLAGET L. M. ERICSSON. 16 July, 1965 [17 July, 1964], No. 30425/65. Heading H2F. [Also in Division H3] In an oscillator having series-conductor controlled rectifiers Tyl, Ty2 fired by double base diodes DB1, DB2, a transistor Trl connected to the double base diodes is so controlled as to permit the double base diodes to conduct alternately depending on the charge on the associated striking capacitor C5, C6. Closing switch 81 of the starting circuit R11, C7 causes thyristor Ty2 to conduct and the voltage induced in winding 4, 6 of transformer T is rectified by diodes L7, L8 to control the conduction of transistor Trl which maintains the double base diodes off. When the output from the winding 4-6 passes through zero transistor Trl turns off so that the change in the potential at the base B2 of the double base diode DB1 falls below that of the voltage at its emitter so that capacitor C5, which has charged via R1, then discharges through the double base diode DB1 so as to cause thyristor Tyl to conduct. Capacitor C6 has been prevented from charging because of the current from the positive supply passes via resistor R2, R4, diode L4 and thyristor Ty2 when this was on. Charged capacitor Cs quenches thyristor Ty2 and discharges through thyristor Tyl, diode L6, resistor R4 and diode L4. The circuit then oscillates, giving an output from winding 7, 8 of the transformer T.
Patent GB-868132-A (GB)
Title: Manufacture of new 21-hydroxy-steroid compounds
IPC: C07J43/00
Filed: 1957-09-27
Abstract: The invention comprises 20,21-dihydroxy-20-pyridyl(21) or piperidyl(21) steroids of the pregnane and allopregnane series and esters and salts thereof, particularly those derived from 3-oxygenated allopregnanes and from 3-oxygenated pregnenes containing a D 4 or D 5 double bond, e.g. D 5-3b ,20,21-trihydroxy-20-pyridyl -(21)-pregnene its acetyl derivatives, 3b , 21-diacetoxy-20-hydroxy- 20-piperidyl-(21)-allopregnane, its N-methyl derivative, and their salts.  The compounds, which may be further substituted, e.g. by free or esterified hydroxyl groups, oxo groups and halogen atoms, are prepared by reacting 20-oxo-21-hydroxy (or acyloxy) compounds with pyridyl-(2)-lithium and, if necessary reducing the pyridine ring, e.g. by catalytic hydrogenation, with sodium and alcohol, or lithium and liquid ammonia.  Examples detail the preparation of D 5-3b ,20, 21-trihydroxy-20-pyridyl-(21)-pregnene, its 3,21-diacetate and 3b ,21-diacetoxy-20-hydroxy-20-piperidyl -(21)-allopregnane.ALSO:Pharmaceutical preparations having a coronary dilatative effect comprise as active ingredients 20 : 21-dihydroxy-20-pyridyl-(21) or piperidy-(21) compounds of the pregnane and allopregnane series and esters and salts thereof in admixture with an organic or inorganic carrier material suitable for enteral or parenteral administration.  The preparations can be made up, e.g. as tablets or dragees or in liquid form as solutions, suspensions or emulsions; they may contain auxiliaries such as preserving, stabilizing, wetting, emulsifying and osmotic agents or other therapeutic compounds.
Patent GB-254597-A (GB)
Title: Improvements relating to the binding of edges of sheet material
IPC: C14B11/00
Filed: 1925-12-02
Abstract: 254,597. Preble, G. L., and Eaton, H. M., (Assignees of Evans, H. A.). Aug. 12, 1925. [Convention date]. Coating materials in long lengths.-In applying cement over a portion of a strip 2 to be used in binding the edges of sheet material, such as shoe uppers, the strip 2 is drawn from a reel 30 between tensioning bars 32 and under an opening 36 in a cement pot 34, Fig. 4, of the width of the portion of the strip to be covered. The strip is supported by a spring- pressed plate 40 over which it passes, and a knife 41 at the end of the pot removes the surplus cement. After passing through an oven 42 where it is partially dried, the coated portion of the strip is covered with a protective layer 19 drawn from a reel 46 by rollers 44 between which the strip passes, after passing under a guide 48, to a collecting-box 50.
Patent GB-157070-A (GB)
Title: Improvements in light projecting apparatus
Filed: 1920-10-28
Abstract: 157,070. McKenzie, Holland, & Westinghouse Power Signal Co., Ltd., (Assignees of Snavely, C. S.). Jan. 9, 1920, [Convention date]. Signal and like lamps.-A projecting lamp for railway signalling and for other purposes is provided with a light source, such as an incandescent electric lamp filament A, B, at each focus of an elliptical reflector R. One or more lenses C, D are arranged so that the rays passing through the front focus are projected in a parallel beam.
Patent GB-1223189-A (GB)
Title: Travelling wave shedding loom
IPC: D03D47/26
Filed: 1968-06-26
Abstract: 1,223,189. Travelling-wave shedding loom. WERKZEUGMASCHINENFABRIK OERLIKEN BUHRLE K.G. 26 June, 1968 [27 June, 1967], No. 30586/68. Heading DIE. A travelling wave shedding loom having means to prevent a weftless gap occurring upon resumption of wearing after removing a defective weft in which the relative positions of the inserted wefts and beat-up line are altered before resumption, has means for progressively restoring the relative positions once weaving has restarted. The mechanism is generally similar to that described in specification 1,108,735 but the restoring means is controlled by rotation of cloth take-up roll. In Fig. 1 the line of the beaters 30 is brought parallel to the wefts by swinging the arm 39 controlling their lower pivot points 33. When weaving is resumed piston 44 is actuated to swing arm 39 forward, but its range is restricted by engagement of pawl 58 in the teeth of ratchet 59. The ratchet is driven from take-up roll 13 by gear train 60-2 and is progressively followed by the pawl and arm 50 until projection 53 strikes an adjustable stop 54. In figure 2 the cloth is adjusted relative to the beat-up line by swinging one end of roller 71 in arcuate guide 78. The progressive restoration is again controlled by pawl 58 following ratchet 59 driven by take-up roll 72. The forward edge (68b fig. 10 not shown) of the shuttle drivers is raised above the shuttle and acts as a beater.
Patent GB-1133621-A (GB)
Title: Apparatus for spreading loose material
Inventor: ROBINSON BARRY NORMAN
IPC: E01C19/18
Filed: 1965-11-30
Abstract: 1,133,621. Spreading material; endless conveyers. SIR ALFRED McALPINE & SON Ltd. 30 Nov., 1965, No. 50668/65. Headings B8A and B8E. [Also in Division E1] In apparatus for spreading loose material, such as concrete over a surface such as a road bed, a spreader conveyer 6 is mounted on a carrier 4 such that the conveyer can swing from side to side about its input end as the carriage advances. The input end of the conveyer 6 has a hopper 50 and is mounted on a wheeled trolley 40 having fore-and-aft movement on a turntable 36 mounted on the carriage 14; the other end of the conveyer being supported by a reciprocating stirrup from a gantry 18. Concrete from a mixer lorry 60 is fed to a hopper 64 and cantilever conveyer 54 and thence to the hopper 52. The conveyer 54 is mounted on a separate vehicle 8 having power means 10 for the actuation of conveyer, gantry and forward drive motors of the carriage 14.
Patent GB-408545-A (GB)
Title: Improvements in and relating to refrigerating machines
IPC: F25B41/06
Filed: 1933-11-04
Abstract: 408,545. Ball and float valves. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.- (Assignees of Steenstrup, C. ; 2250, Grand Boulevard, Schenectady, New York, U.S.A.). Nov. 4, 1933, No. 30689. Convention date, Nov. 5, 1932. [Class 135.] A valve 24 is connected to a link 47 of U-shaped cross-section attached to two arms 49 pivotally secured to a flat part 44 of a tube 35 containing the valve seating, the arms 49 also engaging with a recess 42 in a float. The tube 35 and the valve-operating means are made of metal of low heat conductivity to reduce the leakage of heat into the refrigerator compartment. The end of the pivot pin 46 is bent into a U-shape, and the end of the pin 51 holding the link 47 is bent through a right angle, to prevent them from being displaced.
Patent GB-520495-A (GB)
Title: Motor driven headstock for grinding and like machines and for other machine tools
IPC: B24B47/10
Filed: 1938-10-24
Abstract: 520,495. Work-driving means for grinding machines. WIGGLESWORTH, A. W. Oct. 24, 1938, No. 30698. [Class 60] A motor driven headstock for grinding- machines or other machine tools comprises a lower housing 12, 13, 13<SP>1</SP> supporting an upper housing 15. In the upper housing is an electric motor 16 driving, through a belt 29, a pulley 18 on a shaft 20, the shaft being carried by a frame pivoted at 23 and adjustable by screws 26, 28 to tension the belt. The shaft 20 also carries a wide pulley 19 from which a belt 31 passes to a stepped pulley 33 carried by a shaft 32 running in an oilless bearing 41 in the housing 13 and in an arm 44 pivotally mounted on a part 45 coaxial with the work-centre 35. The belt 31 is movable by a forked slide 36 carried by a rod on the housing 15 and having a pin 38 to engage notches in a bar 40, and in order to relieve the tension in the belt to enable it to be moved, the shaft 32 is swingable with the arm 44 and the housing 13 about the axis of the centre 35 by a lever 42, the parts being locked when adjusted by a handle 46. Inside the housing 13 the shaft 32 carries a plain or grooved pulley 47 driving, by rubber belting 48, a pulley 49, which has a sleeve part 50 and runs on an oilless bearing 51 carried by a stationary shaft 52 in which is mounted the centre 35 and which is housed in a sleeve 59 fixed to the housing 12. Secured by bolts 53 to the pulley 49 is a work, engaging member 34 provided with slots to receive a driving bolt 86. The belt 48 is tensioned by an idler pulley 65 carried by an arm 62 pivoted on a stub shaft 60 and acted on by a spring 68', the tension of which is adjustable by adjustment of a washer 70 to which one end of the spring is anchored. The shaft 52 carries a flat disc 54 which retains an oilless washer 56 at the forward end of the sleeve 50 and bearing 51 and a similar washer 57 is located between the rear end of the sleeve and a shoulder in the sleeve 59 ; a bearing sleeve 58 also is located between the sleeves 50 and 59 and between the sleeve 50 and a member 59<SP>1</SP> movable with the housing 13. In order to prevent access of water &c. to the bearings, for example, through the opening 76 and space 77, the member 34 has therein radial passages 78 extending to the edge 79 which fits within a flange 80 of the housing 13, a space therebetween allowing water to pass out through a recess 82 and a slot 83 or out through a recess 84 in the member 34. The centre 35 may rotate.
Patent GB-1024966-A (GB)
Title: Improvements in or relating to steam boilers of the water-tube type
IPC: F22B21/14
Filed: 1964-08-04
Abstract: 1,024,966. Water-tube steam boilers; oil fired boiler furnace. K. F. NORDLUND. Aug. 4, 1964 [May 4, 1964], No. 30715/64. Headings F4A and F4B. In a water-tube steam boiler in which the walls of the furnace are lined with substantially vertical water tubes 21, 22, that are connected in parallel between a water and steam drum 1 and distribution headers 4, 5, 6, 7, the combustion gases are made to pass through at least one horizontal passage 11, 13, in which are arranged the tube coils of a convection heating surface 24, 26, 25, 27 which are themselves formed from the same tubes that line the furnace. The tube coils 24, 26, 25, 27 are of serpentine form in a vertical plane transverse to the flow of the combustion gases and may be formed from the tubes 22 on one side of the furnace only, as shown in Figure 2, or may be formed from the tubes 21, 22 on both sides of the furnace, and the distance between the straight portions of each individual coil may be constant or may vary along the horizontal flue gas passage. The horizontal passage 11, 13 may be of constant height or it may converge towards its exit end to increase the gas flow velocity and the bottom of the passage 11 may be either defined by a partition or by forming the tubes 23 tightly adjacent to each other to make a horizontal shield. Air jets may be fed into the flue gas through nozzles 17 to aid complete combustion and a section of the horizontal passage 11 may be left clear of tube coils to act as a combustion chamber. In one of the horizontal passages a superheater tube coil may be inserted. In a modification the horizontal passages are arranged below the furnace.
Patent GB-322056-A (GB)
Title: Improvements in beds or cots
IPC: A47D7/03
Filed: 1928-10-24
Abstract: 322,056. Wilson, A. E., and Drinkwater, E. Oct. 24, 1928. Bed bottoms; bedlifts; adjustments.- A bed or cot comprises a main-floor 10, four corner members 4, 5 each having a number of slots 6 on the inner faces thereof, and an adjustable and detachable false floor consisting of a double layer 13, 14 of fabric having a central longitudinal pocket 17 to receive, a soft mattress, and side longitudinal pockets each for the reception of a rod 8 engagable with the slots 6.
Patent GB-358732-A (GB)
Title: An automatically variable transmission gear particularly for motor vehicles
IPC: F16H33/18
Filed: 1930-10-14
Abstract: 358,732. Variablespeed gearing. HOBBS, H. F., Paradise, South Australia, Australia. Oct. 14, 1930, Nos. 30752/30 and 10391/31. [Class 80 (ii).] A gear device which drives a shaft 46, Fig. 17, at a speed automatically varied to suit the load comprises eccentric planetary masses 12 carried in a frame 4 fast on the driving shaft 2 and connected by toothed gears 11, 13 or by linkages to an intermediate shaft 14 which tends to oscillate. A detent 26 prevents oscillations in one direction from taking place, and the resulting impulses in one direction of shaft 14 are transmitted smoothly to shaft 46 by a flexible coupling. The flexible coupling shown comprises two star plates 106, 107, Fig. 18, fast on shaft 14 having between them a slotted disc 109 carried by a dished plate 117 fast on shaft 46. Stub crank links 108 supported in holes 111 in the star plates have their cranked parts in slots 110 in the plate 109. Springs 105 carried in the same slots bear constantly on the cranks so that impulsive forces which have the effect of compressing these springs are evened out. In a form shown in Fig. 1, the resilient transmission is a torsion spring 47 preferably consisting of superposed flat leaves. Bolts 55 secure the leaves together and secure the built-up spring 47 to the intermediate pulsating shaft 14 and to the driven shaft 46. A flywheel 48 supported loosely on shaft 14 is connected by a tube 50 to the other end of the torsion spring and serves to damp out low-frequency vibrations. Smaller flywheels 51 at intermediate points damp out faster vibrations. The mass of these flywheels may be varied by adjustable screw plugs 60, Fig. 1B. Similar plugs may be used to vary the mass of the wabble weights 12. The reversible detent is shown in Figs. 1, 5 and 7. Rollers 26 adapted to jam in either direction between arcs 22 on a fixed member 20 and a drum 40 fast on shaft 14 are supported in pockets 25 in a cage 24. The rollers 26 are normally held central by slide-blocks 27 which slide circumferentially in the cage as far as spring wires 29 will allow. The wires 29, Fig. 7, pass through the blocks 27 and are fixed at their ends in rings 30 fast on the cage 24. The cage 24 is rocked one way or the other from middle no-drive position through sector 33 and pinion 34 from a forward and reverse control hand-wheel 41, Fig. 1. There is a resilient connection at 36. Arrangements are described having two concentric intermediate pulsating shafts in different phases, and the resilient transmission comprises a central torsion spring and two parallel ones.
Patent GB-751087-A (GB)
Title: Improved washing machine
IPC: D06F25/00
Filed: 1954-10-26
Abstract: 751,087. Toothed gearing; converting rotary into reciprocating motion. GENERAL MOTORS CORPORATION. Oct. 26. 1954 [Nov. 16, 1953], No. 30802/54. Class 80(1) [Also in Groups VIII and XIII] In an automatic washing machine (see Group VIII) the shaft 139 of a reversible motor is driven in one direction to reciprocate an' agitator 40 and in the opposite direction to rotate a tub 21 at low or high speed according to whether a solenoid 116 is energized or not. The agitator is mounted on a rod 116b pivoted to two cranks 161a each pivotally eccentrically to one of two worm wheels 48a. These wheels 48a mesh witha worm 135 adapted to be driven through a one-way clutch 134 by the shaft 139. When the shaft 139 is rotating in the opposite direction drive is transmitted through another one-way clutch 150 and sun-gear 151 to the larger pinions 152 of double planet pinions journalled on pins 156 in a planet carrier. The pinions 152 mesh with an internal gear 136 and the smaller pinions 152a mesh with an internal gear 137 fixed to a cage 117 connected to the tub 21. The gear 137 has recesses for flat-headed pins 138c which are urged towards a flange member 138b on the gear 136 by springs 138 in the recesses. The gear 136 is fixed to an armature 162 which can be drawn down by the solenoid 116 into frictional engagement with a stationary surface 155 against the action of the springs 138. When the solenoid is not energized the motor rotates the cage 117 and tub 21 at high speed, but when it is energized the cage and tub rotate at low speed. Specification 751,088 [Group VIII], is referred to.
Patent GB-828165-A (GB)
Title: Improvements in or relating to blow-down valves for boilers
IPC: F22B37/54
Filed: 1956-10-10
Abstract: 828,165. Steam boiler blow-down apparatus. SMITH, W. Jan. 9, 1958 [Oct. 10, 1956], No. 30881/56. Addition to 769,151. Class 123(2) [Also in Group XXIX] In the automatically and intermittently operating boiler blow-down valve, the bypass conduit 32 which includes the throttled orifice 33 described in the parent Specification and connects the opposite sides.of the diaphragm 13 is replaced by aligned bores 50 in extensions 51, 52 of the casing parts 11, 12. The casing parts are formed with interengaging peripheral rib and groove with the rib enclosing the edge of the diaphragm 13 to prevent it spreading outwardly. A filter 62 is fitted in the feed-water inlet pipe 31 and a non- return check valve 71 in the feed-water discharge pipe 38.
Patent GB-444828-A (GB)
Title: An inflatable belt for personal wear
IPC: A61F5/34
Filed: 1934-10-27
Abstract: 444,828. Belts for personal wear. ANNS, H. F., 25, Broadway Buildings, Westminster. Oct. 27, 1934, No. 30882. [Class 141] A belt for personal wear comprises a belt part or parts provided with buckle, clip, or like fastening means, and one or more flexible inflatable air containers which are adapted and arranged to afford support for the back of the wearer when the belt is in use. In the form shown, the air container 1 is composed of two sheets of air-proofed fabric, e.g. canvas, stuck together around the periphery 2, a tight joint being assisted by means of a folded strip 3. Straps 12 provided at the ends with complementary fastening devices 14 are secured to the ends of the container 1, one of the straps 12 being made adjustable by means of a metal slider 15. The container 1 is inflated by means of a valve 4 of the screw down type secured between the two sheets of fabric, a rubber bushing 5, Fig. 2, surrounding the reduced lower end 6 of the valve body, and a rubber tube 8 being cemented within the lower end of the bushing 5, a tight joint being assisted by means of rubber strips 9 cemented on each side of the tube 8. In a modification, the belt may be made entirely of rubber, and in another form, the inflatable container or containers may be enclosed within a separate outer covering, e.g. of silk which may be closed by means of a sliding clasp fastener. The belt may also be provided with means for securing it to a seat.