baber/WOPTO huggingface dataset:
Patent GB-360035-A (GB)
Title: An improved method of and apparatus for removing pistons from internal combustion engines and the like
IPC: F02F7/00
Filed: 1930-08-01
Abstract: 360,035. Pistons. HALSE, J., 3, Jeppes AllÚ, Copenhagen. Aug. 1, 1930, No. 23190. [Class 122 (i).] To facilitate the removal of pistons from the crank case after they have been lowered clear of the cylinder liner, clamps 15, 16 are provided for securing the connecting-rod to the side of the big end brass 11 so that the whole may be turned about the crank pin 5 and the piston passed out of the crank case. Chocks 14 are fitted between the piston and connecting-rod to prevent relative movement thereof. An extension 17 on the clamp 15 engages a recess' in the head of a bolt 13 and maintains the clamp in position relatively to the brass. The clamp 16 is secured to the brass by the crank head bolts 12 and has a movable jaw 22 adjustable by means of an eccentric roller 23 carried by an arm 24.
Patent GB-1148167-A (GB)
Title: Improvements in high voltage current circuit breakers
IPC: H01H33/59
Filed: 1966-05-25
Abstract: 1,148,167. Arc-rupturing. ALLMNNASVENSKA ELEKTRISKA A.B. 25 May, 1966 [26 May, 1965; 31 Dec., 1965], No. 23247/66. Heading H1N. An arrangement for facilitating the interruption of current in a high voltage inductive circuit, e.g. a high voltage direct current circuit, comprises in parallel with each other a normally closed auxiliary circuit-breaker 4, a resistor 6 and a " switch element " 5 which can conduct the entire circuit current and has an impedance which varies from a low value when it initially conducts to a very high value in a time which is short compared with the current interrupting time. This arrangement is connected in series with the load R b  across a supply source U, e.g. a converter installation with anode reactors of inductance L. To interrupt the current, the circuit-breaker 4 is opened and the switch element 5 is rendered conducting and reduces the current as its impedance increases. The current is transferred to the resistor 6 which may be a non-linear resistor or have a resistance of the order of that of the controlled circuit. Final interruption of the current may be effected by opening a circuit-breaker or isolator 7. The switch element 5 may be gas discharge valve in which the discharge is initiated and controlled by a plasma gun, Figs. 4 and 5 (not shown), or by changing its characteristics, e.g. by providing a magnetic field or by using an iris type diaphragm. In each case the discharge is changed from a low voltage arc discharge to a high voltage space discharge. The element 5 may be connected in series with a circuit-breaker with voltage dividing capacitors across the element 5 and circuit-breaker, and a capacitor may be connected in series with the resistor 6. Figs. 6 and 7 (not shown). Several resistors 6 in series with capacitors and spark gaps may be used, Figs. 10 and 11 (not shown).
Patent GB-1177436-A (GB)
Title: Device for Increasing the Capacity and Strength of the Lungs
Inventor: FITZ EDWARD
IPC: A63B23/18
Filed: 1968-05-16
Abstract: 1,177,436. Spirometers. E. FITZ. 16 May, 1968 [6 Nov., 1967], No. 23326/68. Heading A5K. A device for increasing the capacity and strength of the lungs has a bellows (not shown) fitted within a housing 14, Fig. 1, an inlet 54 for exhaled air, and a solenoid valve 82, Fig. 2, for venting the bellows to atmosphere. Broadly, the exhaled air is passed into the bellows against the restrictive force of valve 62, Fig. 2, held down by weights 72, until the bellows has risen sufficiently for a rod 42, Fig. 1, to strike a microswitch 96 which will then open the solenoid valve 82. Valve 82 will close again when the rod 42 touches microswitch 94. The height of microswitch 96 on the upright 98 is adjustable but if this is not attained during the exhalation, the solenoid valve can be opened by a release switch 90. An indication as to the force of respiration is given by a pressure gauge 52, 78.
Patent GB-276512-A (GB)
Title: Improvements in pencils
IPC: B43K19/02
Filed: 1926-09-21
Abstract: 276,512. Sitzler, L. E. Sept. 21, 1926. Pencils.-A stick of lead for enclosure in a wooden or like case is provided with a sheath or covering of paper, fabric, and like material impregnated with an adhesive so as to form a stiff support for the lead during sharpening or against external blows and to retain it should it be fractured inside the case. The sheath may be applied by means of two strips of material C, preferably loosely woven cotton or linen, coated on both sides with adhesive and placed in position on the two halves B of the case, the lead A being then inserted and the two halves pressed together; the lead may be encased by means of a spirallywound strip of material, a second strip wound in the opposite direction being applied if desired; the lead may be enclosed in a tubular sheath; or the bore of a tubular case may be lined with a sheath, secured in position, if desired, by adhesive, and the marking-substance forced into position. The bore of the case may be corrugated or roughened to hold the sheath in position.
Patent GB-927402-A (GB)
Title: Improvements in or relating to platform elevators
Inventor: HAYDON NORMAN MORRISON
IPC: B60P1/44
Filed: 1959-07-07
Abstract: 927,402. Platform elevators on vehicles. PHILIPS ELECTRICAL INDUSTRIES Ltd. July 7, 1959, No. 23334/59. Addition to 916,421. Class 78 (4). The platform-carrying linkage of the parent Specification is mounted so that it can be retracted within the confines of the vehicle. In the form illustrated the plate 10 supporting the linkage is suspended from beneath the vehicle by parallel straps 11, 12, and suitable catches hold it in the retracted and operative positions. Alternatively, the plate 10 may carry rollers running on guides beneath the vehicle. The ram 22 operating the linkage may be arranged so that it also serves to retract the plate 10.
Patent GB-787578-A (GB)
Title: Improvements in and relating to semi-conductor devices
IPC: H01L29/00
Filed: 1954-08-11
Abstract: 787,578. Semi-conductor devices. GENERAL ELECTRIC CO. Aug. 11, 1954 [Aug. 12, 1953], No. 23341/54. Class 37. [Also in Group XL (c)] A bar of semi-conductor material with ohmic contacts at opposite ends fed with a bias voltage has a P-N junction formed between the contacts so that the voltagecurrent characteristic between one of the base contacts and the P-N junction has a portion which exhibits negative resistance characteristics. As shown (Fig. 1) a bar 12 of N-type germanium or silicon has two ohmic contacts 13, 15 fed with a bias voltage by a battery 31. A dot 23 of acceptor material, e.g. indium, is fused into the bar to form a P-N junction 27 and it is stated that the voltagecurrent characteristic between base contact 15 and electrode 23 has two negative resistance regions. The bar 12 may alternatively be P- type, and the dot 23 of donor material, with the battery voltages reversed. The device may be incorporated in a relay circuit (Fig. 4), wherein the voltage between the base contact 15 and electrode 23 is normally just below the negative resistance portion of the curve, but the addition of a positive pulse from a source 55 produces a large change in current between electrodes 15, 23 which causes a relay winding 51 to close, or open, a switch 59 in a control circuit. Alterna-, tively the control pulse source may be in series with the bias battery 31. In another embodiment the internal resistance of the bar 12 is reduced by a pulse of light from a source 77 (Fig. 6) to cause the current between electrodes 15, 23 to jump to a higher value. When the light is extinguished, the current may stop at the new, high value, or fall to the previous value, depending on the relative values of the voltages of batteries 31, 33. Specifications 700,236, 728,129 and 786,876 are referred to.
Patent GB-970090-A (GB)
Title: Component for beverage dispensing apparatus
IPC: B65D25/48
Filed: 1962-06-18
Abstract: 970,090. Dispensing liquids. C. TERRELL. Sept. 11, 1963 [June 18, 1962], No. 23381/62. Heading A4T. A beverage dispenser component comprising a plastic or caramic container 10 having an aperture in one side wall for connection to the dispenser and through which filled cups may be withdrawn, a shoot 13 in another side wall for admitting cups from a stack into the container, and means in the container base, e.g. the annular groove 14 having a drainage 16 and surrounding the dome 15, for self-centering the cup relation to an aperture 17 at the top of the container for dispensing beverage into the cup. A bottom flange on the cup strikes the dome and slides into the groove.
Patent GB-495221-A (GB)
Title: Improvements relating to tensioning devices for paper feed rolls
IPC: B65H23/08
Filed: 1937-08-26
Abstract: 495,221. Feeding webs. NUNN, C. Aug. 26, 1937, No. 23396. [Class 100 (i)] The web-supply roll 8 of a printing or other machine is braked by straps 5 anchored at one end by springs 6 and wound on a drum 7 to which torque is applied by an electric motor 1 through speed reducing gear 3, a slipping clutch 2, 4 and gearing, such as chain gearing 10. The pressure of the clutch part 4 against the part 2 is adjustable by a lever 13 and solenoid 11 controlled by a manually adjusted resistance 15. A relay 16 in the stop " circuit of the machine may be provided to short circuit the resistance 15 to apply maximum current to the solenoid. The drum 7 may also be spring actuated, the spring acting in the same direction as the torque applied by the motor.
Patent GB-146754-A (GB)
Title: Improvements in engine stop gear
IPC: F01D21/14
Filed: 1919-09-24
Abstract: 146,754. Cockburn, D., MacNicoll, D., and Cockburns, Ltd. Sept. 24, 1919. Automatic gear; stop-gear.-A weight or spring- controlled emergency valve 1 is held open by fluid pressure beneath a piston 6, the rod of which actuates the valve lever 3 through a connecting- rod and an arm 4. The cylinder 7 is connected by a pipe 8 to the forced-lubrication or other oil supply &c., and the liquid passes by a passage 15, a valve 14 and an orifice 16 to the lower side of the piston, while the upper side is connected to an overflow pipe 9. A by-pass 11 between the ends of the cylinder is controlled by a valve 13 carried by a piston 12. When the pressure fails, the valve 13 falls and puts the two ends of the cylinder into communication. The supply of fluid to the cylinder 7 may also be controlled by hand or by the governor.
Patent GB-272732-A (GB)
Title: Improvements relating to shock-absorbing devices for mechanically propelled vehicles
IPC: E04C3/07
Filed: 1926-09-23
Abstract: 272,732. Turner, J. W., Wood, H., and Mann, E. Sept. 23, 1926. Arrangements of springs with mountings complete in themselves.-The shackle pins at the ends of a semi-elliptic laminated spring on a vehicle are connected by an adjustable helical spring attachment which tends to restrain the movement of the main spring. The shackle pins D of the spring F shown in Fig. 3 are connected by rods A, B which enter the tube K shown also in section in Fig. 1. The rod A is screwed into a plug T which is in turn screwed into the end of the tube K, a lock nut L being provided. The other rod B passes freely through a plug M in the other end of the tube K and is provided at its end with a collar H, springs P, R being arranged between the collar and the plugs T, M. The spring R may be replaced by two springs, one weaker than the other. Hooks may replace the eyes at the ends of the rods A, B.
Patent GB-916651-A (GB)
Title: Improvements in or relating to centrifugal governors
Inventor: MOSS NORMAN
IPC: G05D13/10
Filed: 1958-07-22
Abstract: 916,651. Centrifugal governors. PLESSEY CO. Ltd. July 20, 1959 [July 22, 1958], No. 23473/58. Class 57. In a centrifugal governor comprising pivoted weights 1 acting on an end face 4 of a spring- loaded governor sleeve 10 by rollers 5 on arms 6 of the weights, the end face 4 is so curved in profile that at a given shaft speed the increment of axial force exerted by the weights on the sleeve when the position of the weights is varied is less only by a minimum margin of stability than the increment in the spring force on the sleeve produced by the axial displacement of the sleeve as a result of such variation. The decrease in the effect of the centrifugal force of the weights 1 as they approach the plane of rotation of their pivot axes 8 is compensated by auxiliary weights 7 mounted on the arms 6, each weight 7 comprising a pin 7a carrying washers 7b and being located so that at zero governor speed its centre of gravity is in the plane of rotation of the axes 8. The sleeve 6 is loaded by springs 11 and, in the embodiment shown, controls the angular position of the guide vanes 2 of a ram air turbine.
Patent GB-224654-A (GB)
Title: Improvements in shoes for horses and like animals
IPC: A01L1/04
Filed: 1923-09-20
Abstract: 224,654. Terry, F. H., and Sale, W. Sept. 20, 1923. Renewable treads. -The undersurface of a horseshoe A is provided with undercut ledge C, D to receive one or more metal plates E which are held on to the shoe. A by the fixing nails which pass through registering nail holes G, H. Cogs F are formed on the metal plates E.
Patent GB-189257-A (GB)
Title: Improvements in or relating to frictional driving gear for dynamoelectric machines installed on railway vehicles
IPC: B61D43/00
Filed: 1921-09-05
Abstract: 189,257. Vickers, Ltd., Astington, E. C., and Flann, E. T. Sept. 5, 1921. Dynamos, driving.-A dynamo on a railway vehicle is driven frictionally through a flexible shaft by a friction wheel making contact with a surface, such as the tread of the vehicle running- wheel or the rail surface, which is automatically kept clean by the running of the train. Fig. 1 shows a drive taken from the rail 13 by a broad friction wheel 12 coupled by a splined shaft 20 and Hooke's joints 14, 15 to the gearing 16 of the dynamo 1. The friction wheel is journaled in an inverted U-shaped frame 8 sliding in vertical guides 4 on the vehicle under framing, and pressed downwards by a volute spring 14<1> and adjusting nuts 15'. The gearing 16 may be mounted on the frame 8 or may be eliminated, and the spline in the Cardan shaft may be omitted, in which case the axle 11 of the friction shaft is arranged so as to slide laterally in the bearings 10. In an alternative form, the friction wheel is carried by one arm of an elbow lever pivoted in a bracket under the vehicle and having its other end controlled by a spring of adjustable tension so arranged as to force the friction wheel on to the rail. Fig. 4 shows a form in which the friction wheel 12<1> is driven by the vehicle wheel tread 29. It is mounted on one arm of an elbow lever 30, the other arm of which is controlled by an adjustable spring 14<1>. The drive is conveyed to the dynamo 1 by a flexible shaft in a casing 28 suspended from the vehicle by links 39 freely swinging on ball and socket joints. The shaft is arranged in a curve of large radius, thereby enabling displacements between the friction wheel and dynamo to be taken up without stressing the flexible shaft. In any of the arrangements the pressure of the friction wheel on the driving surface may be adjusted for a continuous positive drive or so as to give a slip control of the dynamo output.
Patent GB-1219197-A (GB)
Title: Improvements in or relating to pulse generators
Inventor: NYE ROGER SIDNEY
IPC: H03K3/353
Filed: 1968-05-17
Abstract: 1,219,197. Transistor pulse generators; telephone exchanges. GENERAL ELECTRIC CO. Ltd. 1 Aug., 1969 [17 May, 1968], No. 23645/68. Headings H3T and H4K. A free-running transistor pulse generator for timing telephone conversations comprises a simultaneously switched transistor and an FET reciprocally coupled by means including a timing capacitor connected to the FET gate. In operation of the embodiment shown in Fig. 1, when FET 1 and transistor 12 are turned off, timing capacitor 15 discharges through a resistor 9 until the FET gate potential has risen sufficiently relatively to the source potential to turn the transistors on. The source potential is equal to the voltage drop caused by current flow through Zener diodes 7, 10. When the transistors are turned on, capacitor 15 charges through resistor 9 until the FET gate potential has fallen sufficiently relatively to the source potential for the transistors to be turned off. The source potential is equal, with the transistors turned on, to the voltage drop across Zener diode 7 minus the voltage drop across a Zener diode 11, caused by current flow through FET 1, diode 11 and resistor 8. The output pulses are amplified at 17, 18 and control a relay 19. In operation of a second embodiment (Fig. 2), when FET 21 and transistor 25 are turned off, timing capacitor 35 discharges through a transistor 29, a resistor 36, and an output transistor 33 until the FET gate potential has risen sufficiently relative to the constant source potential to turn on FET 21 and transistor 25. Transistor 33 is then turned off, and capacitor 35 charges through transistor 25 and resistor 36 until FET 21 and transistor 25 are again turned off. The frequency of the generator may be varied.
Patent GB-726652-A (GB)
Title: Improvements in or relating to lighting fittings
IPC: F21V3/02
Filed: 1949-09-14
Abstract: 726,652. Lighting fittings. BENJAMIN ELECTRIC, Ltd., and SMITH, H. L. Dec. 14, 1950 [Sept. 14, 1949], No. 23687/49. Class 75 (4). A lighting fitting 12 has an opening 13 provided with a closure 14 of light transmissive material, the edge of the closure 14 having locating surfaces between which an edge of the opening is made to enter, to retain the closure in the opening, by flexing the closure. In Fig. 1 two such openings in an inverted trough reflector 12 for an electric fluorescent lamp provide upward illumination, and the locating surfaces comprise spaced marginal portions 15, 16 adapted to engage opposite sides of the edge of the opening when the closure 14 is sprung into position. In a modification (Figs. 6, 7, 8, not shown) the spaced marginal portions are continuous and provided on the longitudinal edges only. In a further form, Fig. 9, the openings 20 in the reflector 12 are provided with vertical shields .21 which may be formed by bending up part of the material from the openings, and act as glare preventers. The openings 20 are provided with closures 22 comprising a main horizontal portion 23 and two integral triangular end portions 24. Each closure 22 has an interrupted flange 25 with spaced lugs 26 similar to those in Fig. 1, the lugs 26 and flange 25 embracing the edge of the opening. Slots 27 formed in the lower corners of the triangular ends 24 allow the edge of the opening adjacent to the shield 21 to be gripped. Specification 705,052 is referred to.
Patent GB-317478-A (GB)
Title: Improvements in and relating to petrol tanks
IPC: B62J35/00
Filed: 1929-08-02
Abstract: 317,478. Krauss, F. E. Aug. 18, 1928, [Convention date]. Fuel containers.-Saddleshaped patrol tanks are composed of elongated half shells a, a<1>, autogenously buttwelded at x. and a member d welded into position at c.
Patent GB-397673-A (GB)
Title: Shock absorber for protecting, hanging filament lamps from vibration
IPC: F21V21/10
Filed: 1932-08-25
Abstract: 397,673. Anti-vibration devices for lamps. SMITH, E., 12, Aden Grove, Stoke Newington, London. Aug. 25, 1932, No. 23751. [Class 75 (iii).] An antivibration device for pendent electric lamps consists of a C-shaped phosphor-bronze strip A provided with pulleys B over which the flex passes, or, for chain suspension, having at each end a pin and nuts for attaching two links of the chain so as to leave an intermediate slack length. Dimensions of the device are given.
Patent GB-850776-A (GB)
Title: Improvements in or relating to vibratory feeders
Inventor: JAMES EDWIN RICHARD
IPC: B65G27/00
Filed: 1956-08-01
Abstract: 850,776. Jigging-elevators. INTERNATIONAL COMBUSTION (HOLDINGS) Ltd. Oct. 8, 1957 [Aug. 1, 1956], No. 23782/56. Class 78 (1). In vibratory feeders of the kind in which articles or materials are moved along a helical path 2 mounted on the inner surface of a light metal bowl 1 to which vibrations are imparted by an electromagnet 6 and which is bolted to a carrier plate 4, set screws 7 mounted in the plate 4 bear on the undersurface of the bottom 3 of the bowl and are adjusted to set up stress in the bowl sufficient to reduce or eliminate objectionable secondary vibrations. The screws may bear on a reinforcing ring secured to the bowl.
Patent GB-807009-A (GB)
Title: Novel ketones and a process for the manufacture thereof
IPC: C11B9/00
Filed: 1957-07-29
Abstract: The invention comprises compounds of the general formula <FORM:0807009/IV (b)/1> where R4, R5 and R6 represent hydrogen or C1-C5 alkyl groups and the broken line indicates that a double bond may be present between positions 1 and 2 of the five-membered ring. The compounds may be prepared by the catalytic hydrogenation of compounds of general formula <FORM:0807009/IV (b)/2> where R1, R2 and R3 represent hydrogen or linear saturated or unsaturated C1-C5 hydrocarbon groups. If a compound containing a nuclear double bond is required the hydrogenation is preferably carried out in the presence of a palladium hydrogenation catalyst, e.g. palladium black catalysts on a suitable support such as calcium carbonate or charcoal at temperatures below 50 DEG  C. under hydrogen pressures, not exceeding about 30 p.s.i.g.  For nuclear saturated compounds the hydrogenation is preferably carried out at temperatures up to 100 DEG  C. at pressures of up to 200 p.s.i.g.  The hydrogenation is preferably carried out in a liquid phase, the starting material to be hydrogenated being dissolved in an inert solvent, e.g. liquid aliphatic hydrocarbons, or liquid hydrocarbon fractions of a predominantly aliphatic nature.  The ketones used as starting materials may be prepared by reacting an alcohol of the formula <FORM:0807009/IV (b)/3> with an acetoacetic acid ester of the formula <FORM:0807009/IV (b)/4> The alcohols may be prepared by condensing a ketone of the formula <FORM:0807009/IV (b)/5> with an alkali metal acetylide in liquid ammonia, and hydrolysing the condensation products.  The aceto-acetic acid ester may be prepared by condensing said alcohols with diketene.  Examples are given of the preparation of the following compounds and their corresponding starting materials: 4-[21-methyl-51-isopropylcyclopenten - (11) - yl - (11)] - butanone - (2); 4 - [21 - methyl - 51 - isopropyl - cyclopentyl - (11)] - butanone - (2); 4 - [21,51 - dimethyl - 51 - isopropyl - cyclopenten - (11) - yl - (11)] - butanone - (2); 4 - [21,51 - dimethyl - 51 - isopropyl - cyclopentyl - (11) - butanone - (2); 4 - [21 - methyl - 51 - (sec. - butyl) - cyclopenten - (11) - yl (11)] - butanone - (2); 4 - [21 methyl - 51 - (sec.-butyl) - cyclopentyl - (11)] - butanone - (2); 4 - [21 - methyl - 31 - ethyl - 51 - isopropyl - cyclopenten - (11) - yl - (11)] - butanone - (2); 4 - [21 - methyl - 31 - ethyl - 51 - isopropyl - cyclopentyl - (11)] - butanone - (2); 4 - [21 - methyl - 31 - propyl - 51 - isopropyl - cyclopenten - (11) - yl - (11)] - butanone - (2); 4 - [21 - methyl - 31 - propyl - 51 - isopropyl - cyclopentyl] - butanone - (2); 41 - [21 - methyl - 31 - propyl - 51 - (sec. - butyl) - cyclopenten - (11) - yl - (11)] - butanone - (2); 4 - [21 - methyl - 31 - propyl - 51 - (sec. - butyl) - cyclopentyl - (11)] - butanone-(2).