baber/WOPTO huggingface dataset:
Patent GB-657038-A (GB)
Title: Method and apparatus for broaching helical parts
IPC: B23F1/08
Filed: 1949-03-09
Abstract: 657,038. Broaching helical gears &c. NATIONAL BROACH & MACHINE CO. March 9, 1949, No. 6371. Convention date, May 17, 1948. [Class 83 (iii)] A method of broaching helical parts consists in forcing an elongated broach 35 through a workpiece W, and effecting a positive relative rotation until teeth are partly formed in the work-piece, the broaching then being completed to full depth with the relative rotation controlled solely by the inter-engagement between the broach and work. In a machine for broaching internal gears, the broach 35 is moved by hydraulic means having a fixed piston 14 and is detachably secured to a member 25. The latter member 25 is itself 'detachably secured to a freely rotatable collar 23 and is provided with a helical guide portion 30. The guide portion coacts with fixed nuts 43, 44 which are adjustable to take up backlash.
Patent GB-285658-A (GB)
Title: An improved operating and controlling mechanism for winding gear adapted to be applied to motor vehicles
IPC: E02F3/42
Filed: 1927-03-08
Abstract: 285,658. Jackson, G. H. March 8, 1927. Driving auxiliary parts.-A winding drum shaft 25 carried by a motor vehicle such as a Fordson tractor is driven from the engine through a bevel gear on the engine shaft (not shown) which gears with a wheel 46 driving the drum shaft through gearing 43, 42 and a differential gear 35 controlled by two brakes 26, 30. When both brakes are free no drive is transmitted, the drum being driven only when the brake 26 is applied and the brake 30 is free. Both brakes are controlled by a single lever.
Patent GB-781205-A (GB)
Title: Improvements in travelling wave tubes
IPC: H01J25/44
Filed: 1955-03-04
Abstract: 781,205. Travelling-wave tubes. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. March 4, 1955 [March 4, 1954], No. 6521/55. Class 39(1). In a high power travelling-wave tube of the magnetron type, the negative electrode 27, Fig. 1, has a part 2 near the cathode which is highly secondary electron emissive and a part 3 near the collector which absorbs primary electrons and is prevented from emitting secondary electrons. Preferably part 2 is five times as long as part 3. The cathode and collector ends of the system may be curved, Figs. 9, 10. The negative electrode may be divided into an element 320, Fig. 11, with the cathode 301 and a secondary electron emissive part 310, an element 302 with a secondary electron emissive part 310<SP>1</SP> and an element 303 which absorbs secondary electrons. A relatively weak field between element 303 and collector 9 helps to prevent the escape of secondary electrons. The end of element 302 next to element 303 may also absorb secondary electrons. Element 303 may be subdivided into several parts at successively higher potentials. Element 303 may be wholly within the interaction space and nearer the delay line 305. In Fig. 12, element 421 is plane and element 422 has the secondary electron emissive and absorbent parts 410<SP>1</SP>, 403. The delay line has an attenuating zone 8, Figs. 1 and 10, or 308, Figs. 11 and 12. The tube may be of the backward-wave type with a circular structure. The highly secondary electron emissive parts may include a layer of a metal such as platinum deposited electrolytically, or of an alloy such as copper beryllium. Alkaline oxides may be deposited on a surface treated mechanically or chemically to form a rough or porous surface ; e.g. molten metal may be sprayed on the surface. The secondary electron absorbing parts may include parallel longitudinal grooves in the direction of the beam. Similar grooves may be provided at the sides of the secondary electron emissive parts.
Patent GB-452798-A (GB)
Title: Improvements in or relating to extrusion presses for the degasification of kneadable masses
IPC: B28B3/22
Filed: 1935-03-01
Abstract: 452,798. Extruding clay &c. DURST, E., and DURST, O., Liestal, Basle, Switzerland. March 1, 1935, Nos. 6526, 6527, and 6528. Convention dates, March 1, 1934, March 27, 1934, and May 24, 1934. Addition to 430,166. [Class 87 (ii)] In the apparatus for extruding and degasefying clay &c. described in the parent Specification, the cleaning devices are situated within or enter the opening between the vacuum space and the degasefying space. As shown in Fig. 1, the clay &c. is forced by a preliminary worm through a perforated plate 2 to the main worm 4. The vacuum chamber 6 is separated from the degasefying space 3 by wall 8 provided with an opening 9 which is kept free from clay &c. by a reciprocating plunger 10. A further cleaning blade 13 fixed to the worm 4 may be provided in an annular space 12. In a modification, Fig. 3, a rotating roller 16 is situated in the opening 9 to keep it free and a scraper 161 is provided. In other modifications, two rollers rotating in opposite directions or a segment of a roller may be provided in place of the roller 16. In Fig. 5 a worm 24 rotates in the opening 9 to keep it clear. The Specification as open to inspection under Sect. 91 comprises also some further modifications similar to that of Fig. 1. The driving shafts pass through grooved bushes 23 as shown in Fig. 5. As shown in Fig. 8 (Cancelled), the vacuum space is formed as an annular chamber 25 divided by a number of perforated transverse walls. The worm 6 carries a ring 27 which acts as a cleaning device for the opening 28 which may have toothed or indented edges. In the form shown in Fig. 9 (Cancelled), a jet of gas or steam is admitted periodically through the pipe 32 and three-way cock 29 to clean the opening. In this example, the wall between the vacuum space and the degasefying space may be omitted. This subject-matter does not appear in the Specification as accepted.
Patent GB-750309-A (GB)
Title: Improvements in or relating to magnetic recording and reproducing apparatus and/or reeling system therefor
Inventor: CAMRAS MARVIN
IPC: G11B15/04
Filed: 1953-03-10
Abstract: 750,309. Magnetic sound recording and reproducing apparatus. ARMOUR RESEARCH FOUNDATION OF ILLINOIS INSTITUTE OF TECHNOLOGY. March 10, 1953, No. 6558/53. Class 40(2) When a reel. Fig. 9, is placed on a spindle 12 it forces a button 24 and a rod 22 to the right, thus causing the switch 44 , to be moved to the reproducing position and thus prevent a record from being erased in error. In a modification, the reel may be carried by a magazine provided with means to prevent the apparatus being set for recording. The reel is driven by a pin 20 which engages with one of the slots 34 in the reel. A spring-urged ball 16 prevents the reel from slipping off the spindle. A spool for recording has circular recesses to allow it to fit over the button 24 (see Fig. 8, not shown). In a modification, Fig. 5, if the switch is in the reproducing position and the rod 22 is moved, an arm 54 is pivoted about a pin 55 to disengage a clutch between a drive shaft 46 and a shaft 48 which drives the take-up reel. In a further modification, Fig. 10, when the rod 22 is moved contacts 65, 61 open to break the circuit of the erase head 66, and contacts 70, 62 open to break the recording and bias circuit 72, 73 of the recording head 71. A similar modification is shown (Fig. 11, not shown). In a further modification having an electrical control (Fig. 12, not shown) a switch operated by the rod 22 breaks the circuit of the main electrical supply to the apparatus if the switch is in the recording position. Specification 670,577 is referred to.
Patent GB-1046061-A (GB)
Title: Improvements in or relating to the manufacture of metal drums and containers
Inventor: MAYMAN EDWARD CLIVE
IPC: B21D22/02
Filed: 1964-02-18
Abstract: 1,046,061. Making drums and containers; seaming. CROSSHALL ENGINEERING CO. Ltd. Feb. 17, 1965 [Feb. 18, 1964; April 28, 1964], Nos. 6608/64 and 17542/64. Headings B3A and B3J. In the manufacture of metal drums and containers a generally cylindrical sheet of metal is placed over forming members 24 which are expanded by the downward movement of wedge members 20<SP>1</SP>, 211. The wedge members are adjustably mounted on a shaft 13 which is actuated by a pneumatically operated piston. The members 24 may be tapered, in which case the wedge members have three angles of taper, whereby the expansion effort may be progressively increased in proportion to the increasing area of the body of the tapered container in contact with the forming members (Fig. 1, not shown).
Patent GB-347804-A (GB)
Title: Improvements in or relating to electro-mechanical resonators and the like
IPC: H03B5/40
Filed: 1930-02-28
Abstract: 347,804. Frequency measurements. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London. -(Assignees of Hansell, C. W. ; Rocky Point, Long Island, New York, U.S.A.) Feb. 28, 1930, No. 6735. Convention date, April 8, 1929. [Class 37.] A magneto-strictive oscillator or resonator, p a r t i - cularly applicable for determining the frequency of a thermionic oscillator or as an element in an electric filter circuit, comprises a magnet 10 generally of U-shape polarized by current from a battery, and a vibrator rod 12 of magnetic material so mounted in the field of the magnet 10 that it can vibrate freely at its natural frequency. A coil 13 wound around the vibrator 12 is connected to a source of alternating current upon which it is to exercise control, e.g. the tuned grid circuit 21 of a valve oscillator 20, Fig. 2. The oscillation frequency is thus kept constant at the natural frequency of vibration of the rod 12. In Fig. 3 the resonator is used as an element in a filter circuit 31. When the voltage induced by the primary circuit 30 is in resonance with the rod 12, the coil 13 reacts as a capacity which balances the normal inductive reactance of the circuit.
Patent GB-901737-A (GB)
Title: Improvements in or relating to oil-extended polymers
Inventor: BULGIN DOUGLAS
IPC: B29C71/04
Filed: 1958-03-04
Abstract: Natural and synthetic oil-extended elastomers are irradiated with high energy ionizing radiation having an energy greater than 0,1 MeV to improve the resilience.  The dosage is usually between 2 X 106 and 1 X 108 rads.  The elastomer may be vulcanized before or after irradiation.  Elastomers referred to are natural rubbers-Hevea brasiliensis, gutta percha and balata-and synthetic polymers of substituted and unsubstituted conjugated dienes (butadiene, isoprene, chloroprene) and polymers thereof with acrylonitrile, styrene, methyl isopropenyl ketone and isobutylene.  Extending oils, normally used in the range of 10-50%, based on elastomer, may consist of hydrocarbons having aromatic, naphthenic and paraffinic constituents. Conventional dispersion of the oil may be employed, or the process described in Specification 803,993.  In examples the elastomer is mixed with carbon black and unspecified vulcanizing agents, in addition to the extender.  Specified radiations are a -, b -and g -rays, X-rays, accelerated electrons, protons and deuterons obtained from conventional sources.
Patent GB-437999-A (GB)
Title: Improvements in or relating to fuel-injecting internal combustion engines
IPC: F02N99/00
Filed: 1935-03-05
Abstract: 437,999. Starting oil engines ; turning- gear. BOSCH AKT.-GES., R., 4, Militarstrasse, Stuttgart, Germany. March 5, 1935, No. 6850. Convention date, March 5, 1934. [Classes 7 (iii) and 7 (v)] [See also Groups XXVIII and XXXV] In a fuel-injection engine having an electric or other starter and a fuel pump which can be adjusted to inject a greater amount of fuel than that injected for full-load running, means for preventing the injection of the increased amount of fuel is adjusted conjointly with the operation of energizing and de-energizing the starter. In one form, the fuel pumps of a four-cylinder Diesel engine are controlled in known manner by a sliding rod k normally held by a spring n in the " stop " position. The rod k is moved towards the " full load " position by a rod o actuated by a pedal q, this movement being limited by a pivoted stop r against which a collar m on the rod k abuts. On closing the switch e of a starting-motor c, the stop r is withdrawn by means of a rod u and cord v, allowing the rod k to be moved to its full extent in order to give a maximum injection of fuel. This movement of the rod is effected by a connection from the cord v to a ring x, a light spring y being interposed between the ring and a collar z on the rod k. In a modification, the actuation of the starter switch is effected by a lever which also moves the starter pinion axially into engagement with teeth on the engine flywheel; and a rod connected to this lever carries a pair of discs co-operating with the collar m on the rod k, one disc limiting the movement of the rod k to the left when the switch is open, and the other effecting the further displacement to the left when the switch is closed for starting.
Patent GB-1167467-A (GB)
Title: Apparatus for Handling a Load Supported on a Pallet
IPC: B66F9/18
Filed: 1968-02-12
Abstract: 1,167,467. Masted lift trucks. CASCADE CORP. 12 Feb., 1968 [12 June, 1967], No. 6860/68. Heading B8H. Apparatus on a lift truck for inverting a load supported on a pallet comprises support forks 26 and clamp forks 28, mounted on a frame 24 for movement towards each other to grip the load and pallet therebetween, and lateral stabilizing forks 30 mounted on the frame 24 which is rotatable on the lifting carriage about a horizontal longitudinal axis. Also mounted on the frame 24 is a pusher frame 32 which is movable longitudinally and which is provided with a jaw mechanism 34, Figs. 4, 5 (not shown), for pulling a sheet-type pallet on to the forks 28. A sub-frame 58 is mounted on the frame 24 for limited vertical movement and is provided with a pad 60 which may be lowered to grip a sheet-type pallet supported on the forks 28 prior to actuation of the pusher frame 32 to push the load off the pallet. The pusher frame is connected to the sub-frame 58 by pivoted linkages 72a, 72b actuated by hydraulic rams 88. In operation, a sheet-type pallet supporting a load may be drawn on to the forks 28 by means of the jaw mechanism 34 and the pusher frame 32. The load may subsequently be pushed off the forks by the pusher frame whilst the pallet is retained on the forks by the pad 60. A load may be transferred between a sheet-type pallet and a raised-platform pallet by supporting the load on one pallet on the lower forks, placing the other pallet on top of the load and clamping the load and pallet between the upper and lower forks. The forks and load are then inverted and the load is released.
Patent GB-918896-A (GB)
Title: Improvements in or relating to semi-conductor stepping switches
IPC: H03K23/00
Filed: 1961-02-24
Abstract: 918,896. Semi-conductor devices. PHILIPS ELECTRICAL INDUSTRIES Ltd. Feb. 24, 1961 [March 1, 1960], No. 6867/61. Class 37. [Also in Group XIX] A stepping switch comprises a semi-conductor body carrying a succession of bi-stable elements each of which includes the semi-conductor body as a common base region so that successive switching pulses applied to the common base drive each device conducting in turn. The Figure shows a double counter comprising a starting element 10 and ten counting elements. Each member is a four-element device having an emitter 13, base 14 and hook collector 16, the hook collector consisting of adjacent PN regions. The base 14 is common to all the elements and consists of a strip of N-type silicon. In operation, if the second stage 30 of the counter is conducting with the base-stage emitter forwardly biased by source 25, a positive pulse applied at 21 to the base strip 14 establishes a voltage gradient along the length of the base region. This pulse cuts off the base region and causes the migration of the minority carriers, which flooded the base region when the device was conducting, to the next device 31 in the counter. The injection of the minority carriers triggers the next device in the chain and so on. The last device in the claim develops a positive output pulse across resistor 20 which both provides the input to a further chain and, if desired, resets starter device 21 by minority carrier injection into the base layer from the region 17 of the hook collector. The starting stage may be switched on by short-circuiting resistor 20 by switch 34. Starting element 10 may be omitted if a common resistor is inserted between voltage source 25 and resistor 24. Resistors 24 and 20 in the first stage may also be reduced. Thus when a pulse to be counted is applied, if any stage other than the first is conducting the volt drop in the common resistor prevents the stage conducting. If not the first stage will be turned on. Other semi-conductor materials referred to are silicon, aluminium boron, lead arsenide, antimony and indium antimonide. The ohmic contacts at the end of strip 11 may be made by soldered nickel tabs.
Patent GB-323419-A (GB)
Title: Fire extinguishing appliance in petrol tanks and the like
IPC: A62C3/06
Filed: 1929-03-04
Abstract: 323,419. Norling, J. H. March 4, 1929. Fire-extinguishing by foam.-A device for delivering foam to the surface of the burning liquid in a petrol or like tank comprises a foam conduit 4 and one or more tubes 1, 2 arranged concentrically around the conduit. The tubes 1, 2 are provided with longitudinal slots 3<a>, 3<b> arranged respectively at opposite sides of the tubes, as shown. The foam passes into the tube 1, thence by the slot 3<a> into the tube 2, and thence by the slot 3<b> to the burning liquid. The device is arranged vertically or obliquely'in the tank.
Patent GB-1033520-A (GB)
Title: 3-amino steroids
IPC: C07J41/00
Filed: 1963-03-28
Abstract: The invention comprises compounds of formula <F\1> wherein B = N is a tertiary amino- or tertiary amino-N-oxide group, R is an alkylidene group having 1 to 6 carbon atoms, or a monocyclic aromatic-methylene group, X is H2 or an oxygen atom, and Z is a carbonyl or BETA-hydroxymethylene group, acid addition and quaternary ammonium salts thereof, and their preparation by reaction of a compound of formula <F\1> with a carbonyl compound R = O at 50-150 DEG  C. in an organic solvent in the presence of a strong base, followed if desired by (a) reduction of the 17-keto group to a hydroxy group by an alkali metal borohydride, (b) formation of an amine oxide by reaction with hydrogen peroxide, or (c) salt formation.
Patent GB-1511474-A (GB)
Title: Setting of a drilling and production platform on the foundations of an offshore oil rig
IPC: E02B17/02
Filed: 1977-02-18
Abstract: 1511474 Setting offshore platforms HOCHTIEF AG FUR HOCH-UND TIEFBAUTEN 18 Feb 1977 [10 March 1976] 07021/77 Heading E1H A production platform 1, Fig. 2, is set on the foundation bore-holes 2 by aligning pistons 7 on the platform with sand receivers 4 over the bore-holes, and, when the pistons are at their lowest level due to the tide, opening flap valves 10 to allow sand 11 to enter receivers 4 as the platform is lifted by the tide. On the next downward movement the platform rests on the sand. Subsequent higher tides permit more sand to enter the receivers.
Patent GB-340867-A (GB)
Title: Improvements in or relating to electric switch gear installations
IPC: H02G5/06
Filed: 1930-03-04
Abstract: 340,867. Conduits and casings. FELTEN & GUILLEAUME CARLSWERK AKT.-GES., M³lheim, Cologne, Germany. Mar. 4, 1930, No. 7050. Convention date, March 7, 1929. [Class 36.] To avoid setting up electrical stresses in the free space which is left above the insulating compound in casings containing bus-bars to allow for expansion due to the heating up of the bus-bars, a perforated metal sheet, conductively connected with the casing, is arranged lying on, or embedded in, the compound, the perforations being small in comparison with the distance of the sheet from the bus-bars or other live parts.
Patent GB-1519429-A (GB)
Title: Frame construction frame construction
IPC: A47B57/40
Filed: 1977-02-21
Abstract: 1519429 Shelving E-Z-RECT METAL PRODUCTS Ltd 21 Feb 1977 07130/77 Heading A4B [Also in Division F2 ] A horizontal frame bar 14, or a bearer bar 16 for a shelf 18, is secured at a selected position to an upright post 12, e.g. a tubular post, having a series of slots 22 or/and individual spaced slots or pairs of slots 23, by forming on the ends of a web portion of the bar 14 or 16 one or more hooks 35 and a cutaway portion 37 which leaves a tab 39 having an outer shoulder 40 and an inner head 41. After engaging the hook or hooks with the wall 20 or 21 of the post by passing them through the desired slot or slots and moving the bar 14 or 16 downwardly, Fig. 5, a screwdriver end is engaged in the cut-away portion 37 behind the tab 39 and rotated to bend the tab in the plane of the web to cause the shoulder 40 to engage the upper edge of the slot, or the lower slot of a pair, and the head 41 to engage the outer face of the wall 20 or 21, to lock the bar against disengagement.
Patent GB-106002-A (GB)
Title: Improvements in Internal Combustion Engines.
Inventor: FOX REGINALD CHARLES
IPC: F02B1/00
Filed: 1916-05-19
Abstract: 106,002. Fox, R. C. May 19, 1916 Regulating; valves. - In multicylinder two-stroke-cycle or four-stroke-cycle engines the pump-cylinders are connected in pairs and means are provided either for supplying the full pump charge to each working cylinder. or for rejecting part of the charge on the pump delivery stroke, the rejected charge passing to the other pump chamber of the pair. In the four-cylinder twostroke-cycle engine shown in Figs. 1 and 2, the cylinders are forrped with annular pump chambers 11, and the pump chambers of the cylinders 1, 3 and 2, 4 are connected by pipes 45, 46 respectively. The pump delivery is controlled by valves 33, Fig. 2, which can be raised from their seats for different periods on the upstroke of the pistons 10 to permit part of the charge to pass to the valve 33 of the associated pump cylinder, by engaging their stems 34 with one of a series of cams 38, 39, 40, 41, Fig. 1, run at twice engine-speed. The cams may be duplicated and the shaft run at engine speed. Each pump chamber communicates with the corresponding combustion chamber by a passage 15 and inlet valve chamber 13. The inlet valve comprises a hollow sleeve 16 formed with a port 17 and supporting a valve 19 which is raised against the resistance of a spring 23 by a cam 22. In a modification the quantity of the charge rejected is controlled by an adjustable rotary hollow sleeve 71, Fig. 6, provided with a series of ports 72 at different heights. A spring- loaded valve 66 opens under pressure and allows the charge to pass through the pipe 67 and balanced valve 69 into the combustion chamber. As applied to a four-stroke-cycle engine, two of the four cylinders are formed with annular pump chambers, and each pump chamber supplies the charge to two working cylinders alternately.