baber/WOPTO huggingface dataset:
Patent GB-131807-A (GB)
IPC: B23Q1/30
Abstract: 131,807. Jewsbury, J., and Archdale & Co., J. Dec. 13, 1918. Drilling-machines. - In radial-arm drilling- machines the actuating mechanism is interlocked so that the vertical adjustment of the arm cannot be started till this is unclamped and the drill cannot be started by the handle adjacent thereto till the arm is clamped. The split sleeve b, Fig. 1, of the arm c can be clamped to the pillar a by rotation of an eccentric d on a shaft f which, at the same time, by means of a cam 10, Fig. 5, and, linkwork 8, 9, Fig. 6, moves the pinion 4 out of gear, as shown in Fig. 6, against the action of a spring 7, so that the screw 6 for raising and lowering the arm c cannot be operated. A sleeve s, mounted in the framing to rotate only, is feathered on a sleeve o feathered on the shaft f. The sleeve o has a rack p engaged by a toothed segment q pivoted to the sleeve s and having a handle r which when moved horizontally rotates the shaft f and when vertically slides the sleeve o axially. The sleeve o has a T-slot engaged by a fixed pin so that it cannot be moved vertically from its mid position unless the handle r is in its right-hand or unclamped position. This vertical movement of the sleeve o is transmitted through a flange u, a collar v and a shaft g to a helical pinion k in gear with an inclined rack j, Fig. 5, on the fork i which thus moves the feathered clutch h into gear with either of the oppositely rotating gears m and drives the screw 6 through gearing y, 3, 4, and 5 and incidentally the drill through shafts x, 2. The clutch h can also be operated, to drive the drill, by rotating the shaft g by means of an arm 11 connected to a handle situated near the drill. To prevent this being done, when the arm c is unclamped and the pinion 4 in gear, the flange u, Fig. 3, has a part of larger diameter which in the " unclamped " position enters an arc 13 cut in the collar v and thus locks the shaft g from rotation.
Patent GB-642219-A (GB)
Title: Combined knife holder and guard
IPC: B26B29/02
Filed: 1948-05-14
Abstract: 642,219. Hand knives. DUNLOP RUBBER CO, Ltd., and MALTHOUSE, J. W. May 14, 1948, No. 13215. [Class 30] [Also in Group XXIII] A combined holder and guard for a hand knife comprises a holder adapted to enclose the handle and a guard pivoted' to the holder and resiliently urged towards the cutting edge of the knife. The holder 1 comprises a member substantially U- shaped in cross section having an integral: flange 12 slotted to receive the knife blade and formed with a pair of opposed webs 11 to which are pivoted the guard 2 and a safety catch 22 by which means the guard may be held locked adjacent to the cutting edge 21 of the knife blade. The holder 1 is bored longitudinally at 16 to receive a compression spring 17 abutting at its outer end against the guard 2 which is U- shaped in cross section and is provided at its outer extremity with a pair of wheels 7 adapted to engage the surface of the material to be cut so that the guard is displaced to expose the cutting edge 21 when the knife is applied to the material. The safety catch may be omitted as in Fig. 1 (not shown).
Patent GB-140658-A (GB)
Title: Improvements in racket-stringing cords and the like
IPC: A63B51/02
Filed: 1919-05-26
Abstract: 140,658. Lewis, S. G. May 26, 1919. Rackets.-Catgut strings for rackets &c. are coated or sized with india-rubber which is applied to the separate strands or the twisted string. The coating may be applied by passing the strands or string through a bath containing a solution of india-rubber, wiping the coated string or strands, and then supporting the string in such a manner as to permit of the rubber becoming air-cured. The coating may be applied in the form of thin sheets, wrapped on the string or strands.
Patent GB-905934-A (GB)
Title: A new or improved forage harvesting machine
Inventor: WILLIAMS FREDERICK
IPC: A01D43/08
Filed: 1960-04-14
Abstract: 905,934. Forage harvesters. HARRISON, McGBEGOR & GUEST Ltd. April 6, 1961 [April 14, 1960], No. 13298/60. Class 6(3). In a forage-harvester having a shoot 10, 11, the upper part 10 of which is angularly movable manually for either lateral or rearward discharge, the upper part is movable about a spindle 18 housed within the shoot. The lower part 11 has a segmental cropcarrying passage formed between the side-walls 14 and a partition 13 behind which the spindle 18 is mounted on upper and lower plates 16, 17. The upper shoot-part 10 is provided with a bracket 19 bored to receive the spindle 18 and an arcuate detent plate 30 which cooperates with a triggeroperated catch 26, 27, 29 to retain the shoot-part 10 in any adjusted position. A spring-loaded flap 22 can be adjusted by a cable 23 to deflect the crop downwardly at any angle. The lower shoot-part 11 is hinged to the flail-housing 12 to permit access to the flails (not shown). The main frame is of trailer construction with rear wheels 33 and a power take-off connection 35 to the towing tractor.
Patent GB-133048-A (GB)
IPC: F16D1/02
Abstract: 133,048. Odhner, V. J. Sept. 26, 1918, [Convention date]. Zeroizing - mechanism. - Positive clutches, particularly applicable to calculating-machines for connecting together those shafts which respectively zeroize the registering disks and the disks indicating the number of revolutions of the actuator wheels, so that the disks may be zeroized separately or simultaneously, comprise a central shaft or member 3, preferably cylindircal, with cylindrical ends bearing in a cylindrical recess 9 in a framing and formed for positive clutching engagement with the ends of the shafts 1, 2 to be connected. The member 3 is rotated into clutching position by a lever 11 with a fork 7 projecting into a circular groove 6 in the member.
Patent GB-133129-A (GB)
IPC: B25B23/10
Abstract: 133,129. Mackay, R. A., and Adam, Grimaldi, & Co. Sept. 25, 1918. No Patent granted (Sealing fee not paid) Screwdrivers. - A screw-driving attachment for a brace or a drilling or other machine comprises a frame slidable on the screwdriving bit and carrying a screw hopper and spring-controlled jaws for holding the screws during the driving operation, the feeding of the screws from the hopper being effected automatically by the relative movements of the frame and the bit. The hopper d is carried by a sleeve b of a frame a supported by a rod h' from a bracket l secured to the brace or machine. The sleeve b slides on the bit c and is normally pressed towards its free end by a spring h on the rod h'. The sleeve b is provided with a pair of spring-pressed jaws q to hold the screw while it is being driven and until it is nearly home, when the jaws are pressed apart by the head of the screw engaging the inclined internal faces of the jaws. The lowermost screw in the hopper is held by a detent f carried by a pivoted arm k, which is actuated to release the screw by a plunger i, which is operated by an enlargement c<2> on the bit during the driving of the previously-fed screw. The released screw falls into engagement with the side of the bit c until, when the bit is again raised, the screw falls into the jaws g. The depth to which the screws can be inserted is limited by the engagement of the enlargement c<2> with the end of the sleeve b, and the enlargement c<2> may be adjustable to suit screws of different lengths. A number of removable sleeves such as b of different diameters may be provided for use with screws of different sizes.
Patent GB-905707-A (GB)
Title: Improvements in or relating to tanks and vessels for the storage or transport of liquid gas
Inventor: CORLETT EWAN CHRISTIAN BREW
IPC: B63B25/16
Filed: 1960-04-14
Abstract: 905,707. Storing liquefied gases. BURNESSCORLETT & PARTNERS Ltd. April, 4, 1961 [April 14, 1960], No. 13328/60. Class 8(2). [Also in Group XXXIII] A tank 1, e.g. of aluminium, for the storage or transport of liquefied gas is provided with an external insulation layer 3, e.g. fibre glass. and is housed within an outer container 4 provided with an internal insulation layer 8, e.g. of cellular plastic material, there being a space between the tank and the container which is filled with an inert gas, e.g. dry nitrogen. As described the container 4 is a bulkhead of a ship and is spaced from the hull 7 of the ship, the space having ballast water circulating therethrough. The insulation layer 3 is held in position by encircling tension bands to counteract the effect of tank shrinkage and both insulation layers are covered with polythene. The tank 1 is circular and rests on an insulation layer 5 covering the bottom 6 of the container 4.
Patent GB-133395-A (GB)
IPC: G01S1/72
Abstract: 133,395. Fessenden, R. A. July 20, 1917, [Convention date]. Subaqueous audible signals. - In apparatus for receiving subaqueous sound impulses, as in submarine signalling or detecting submarines, undesired disturbances, particularly those due to low-frequency vibrations of the hull of the detecting- vessel, are eliminated by using two receiving-devices so mounted and connected that they are affected equally, but in opposition, by the disturbance to be neutralized. As shown, a receiver 11, preferably an oscillator of the kind described in Specification 18765/13, mounted in the skin of the detecting-vessel, is connected in circuit with choke-coils 22, 23, a commutator 28, preferably of the kind described in Specification 22134/14, serving to commutate the low-frequency impulses into impulses having audible frequency, a filter 29 serving to filter out frequencies other than those of or about a predetermined frequency such as that of the commutator, an amplifier 30 of known type, and a telephone head-piece 33. The compensating-receiver comprises a telephone receiver 35 having a weight 36 attached to its diaphragm, and mounted so as to be adjustable along a rod 37 carried at some suitably selected point of the hull. A weight 38 is adjustable along the rod. A switch 16 serves to short-circuit either receiving-device at will, so that disturbances affecting the two devices may be listened to singly, and compared, when necessary. With the switch 16 open, the receivers are in series, and no effect is produced in the head-piece by disturbances affecting the receivers equally but in opposite phase. Switches 24, 31, 32 serve to short-circuit, when desired, the choke-coils, filter, and amplifier respectively. The circuit is bridged through adjustable resistances 18, 18<1>, 21, 21<1> and capacities 19, 20 to aid in preventing high frequencies generated in the receiver 11 from reaching the commutator. The switch 24, when thrown to the right, serves to connect an arrangement for testing the commutator and comprising a battery 27, high resistance 26, and an adjustable low resistance 25 over which a contact-arm 40 can be moved. The positions of the filter and amplifier may be interchanged, and the receivers 11, 35, instead of being mounted on the hull, may be placed in a tank containing liquid, the latter instrument being shielded by a sound screen.
Patent GB-587193-A (GB)
Title: Improvements in or relating to the preparation and employment of catalytic materials
IPC: B01J27/06
Filed: 1944-07-12
Abstract: A catalyst for use in hydrocarbon reactions, e.g., the isomerization of normal paraffins to isoparaffins, (see Group IV), is prepared in situ by passing hydrocarbon vapours or inert gases at elevated temperatures through an adsorptive carrier in a reaction vessel to reduce the water content of the carrier to 3 per cent. or below, and then impregnating the dehydrated carrier with vapours of an aluminium halide while maintaining the temperature below that at which the aluminium halide vaporises from the carrier.  Activated alumina (e.g., the material known under the Registered Trade Mark "Porocel") or bauxite may be used as the carrier.  Suitable gases and vapours for drying the carrier are nitrogen, carbon dioxide, hydrogen, air, and paraffin hydrocarbons, preferably the hydrocarbon used subsequently in the reaction.  Aluminium chloride vapours for impregnation may be obtained by passing the gases or vapours specified above through the molten salt, by passing hydrocarbons through a drum containing the solid salt, or by subliming the solid salt.  The carrier may be dried at a temperature of 200-400 DEG F., preferably 250-350 DEG F., and at 0-100 lbs. per square inch pressure, and impregnation effected at a similar temperature and pressure until the carrier has adsorbed 6-50 per cent. preferably 8-12 per cent. of its weight of the halide.  Specification 564,346 is referred to.ALSO:Hydrocarbon reactions are carried out in the presence of an aluminium halide catalyst prepared in situ by passing hydrocarbon vapours or inert gases at elevated temperatures through an adsorptive carrier in a reaction vessel to reduce the water content of the carrier to 3 per cent or below, and then impregnating the dehydrated carrier with vapours of an aluminium halide (see Group III).  Reactions referred to are the isomerization of normal paraffins, especially those with at least four carbon atoms per molecule, such as normal butane and normal pentane, to isoparaffins, the alkylation of isoparaffins with olefins, the nuclear alkylation of aromatics with alkyl chlorides, alcohols, or olefins, and the polymerization of olefins.  The isomerisation of normal paraffins is preferably carried out at a temperature of 200-400 DEG  F. and in the presence of a halogen or halogen-containing promoter, such as hydrogen chloride, hydrogen bromide, methyl chloride, carbon tetrachloride, chlorine, or bromine.  In an example normal butane is converted to iso-butane by passing with 6 per cent anhydrous hydrogen chloride through an aluminium chloride catalyst at 300 DEG  F. and 200 lbs. per sq. in. pressure, aluminium chloride being added intermittently to the feed.  Specification 564,346 is referred to.
Patent GB-1355455-A (GB)
Title: Method for the preparation of isoprene
IPC: C07C41/28
Filed: 1972-03-22
Abstract: 1355455 Ethers from isobutylene and formaldehyde SUN RESEARCH & DEVELOPMENT CO 22 March 1972 [22 March 1971] 13340/72 Heading C2C [Also in Division C5] In a process for making isoprene, isobutylene and methylol are reacted under anhydrous conditions in the presence of an acid catalyst to give a mixture of 1,3-dimethoxy-3-methylbutane and 4- methoxy-2-methylbutene-1, together with small amounts of isoprene and methyl-t-butyl ether. This mixture may be pyrolysed at 175-350 C. in the presence of a catalyst such as a cationexchange resin, a molecular sieve or an organic acid to give isoprene and methanol. The first step may be carried out at 20-100 C. in the presence of BF 3 , SnCl 4 , TiCl 4 , H 2 SO 4  or AlBr 3 . The methylol used may be obtained by reacting tbutylhydroperoxide and methanol to give methylol and t-butyl alcohol in the presence of an acid catalyst and a metal salt co-catalyst. The t-butyl hydroxide may have been obtained by oxidation of isobutane.
Patent GB-133584-A (GB)
IPC: D05B69/12
Abstract: 133,584. Fairweather, W., (Singer Manufacturing Co.). Feb. 7, 1919. Sewing-machines; driving. -A sewing-machine is fitted with alternative electrical and manual driving. In the former case, the usual treadle is coupled by a pitman to the motor rheostat, and in the latter case, it is coupled to a pitman and the usual crankshaft. The invention consists in providing on the treadle a part of a pitman 28 which can be connected either to a corresponding part 30 attached to the rheostat or one attached to the crank-shaft. Alternative belts are provided for connecting the machine head with the motor pulley and the treadle-gear fly-wheel.
Patent GB-133870-A (GB)
IPC: F02B25/00
Abstract: 133,870. Stanfield, J. R. M. Oct. 16, 1918. Two-stroke-cycle engines. - In a cross-connected engine having cylinders of two diameters and in which a common air supply passage E opens into the pump chambers B, B<1>, fuel-injector nozzles F, F<1> are located one in each of the transfer passages C<3>, C<2> respectively. The passage E may, as shown in Fig. 1, open into the crank casing when its ends are uncovered by the pistons during their upstrokes.
Patent GB-313718-A (GB)
Title: Improvements in or relating to valves and stop cocks
IPC: F16K41/10
Filed: 1928-05-07
Abstract: 313,718. Payne, M. May 7, 1928. Leakage, preventing.- A valve 7 of the kind having a spindle 1 slidable through an aperture 2 in a bonnet 5 and packed by an expansible metal casing 4 has the spindle rotatably connected to an operating- member 9 screwed to the casing, so that the valve may be positively moved in both directions. The expansible sleeve is formed with annular corrugations by spinning or otherwise, and is soldered or brazed to the casing and valve-member. The operating-member may be connected to the spindle by pins engaging an annular groove in the spindle.
Patent GB-1492975-A (GB)
Title: Optical code reading systems
IPC: G06K7/10
Filed: 1974-03-27
Abstract: 1492975 Optical bar code reader PLESSEY CO Ltd 6 Nov 1974 [27 March 1974] 13497/74 Heading G4M A reader for bar coded data, e.g. on luggage or labels has a device, such as an electron beam storage tube, on which an image of the data is stored in a random orientation and means reading the stored data. In one embodiment articles 5 having bar coded labels on their lower surfaces are moved by hand or by a belt over a slit 3. Light from a laser source 1b is deflected by a mirror 1c to scan the slot. Light reflected by successive scans of the label is collected by a lens 2b and stored as a television-type picture on tube 2c. The tube is subsequently scanned with a number of rasters arranged at different angles so that at least one scan passes through all the bars on the label and the data on the label is read out. In a second embodiment a label carrying article 10 is moved over a slit 8 illuminated by a lamp. An image of the label is formed on a belt 7b of a photochromic material or an erasable electrophotographic material. In the latter case the surface is charged by unit 7e, the image is rendered visible by applying toner particles using applicator 7f and is erased by unit 7d. In the former case data is erased by, e.g. an ultraviolet lamp, 7d. The recorded data is read by code reader 11 which may be a laser scanner, or flying spot scanner having a series of raster scans at various angles.
Patent GB-295978-A (GB)
Title: Improvements in lifting appliances for motor vehicles
IPC: B66F7/02
Filed: 1927-05-19
Abstract: 295,978. Chapman, W. M. May 19, 1927. Stands or supports for vehicles.- A lifting appliance for raising motor vehicles &c. to facilitate repairs &c. comprises a pair of tracks mounted on a movable frame guided between uprights and adapted to be raised by means of motor actuated winch mechanism. The tracks 15 for the vehicle wheels are fitted with pivoted end ramps 17 and are transversely mounted on channel members 13 adapted to rest when in the lowered position on channel members 6 of the frame 5 which, is provided at its corners with pillars 8. The channel members 13 have brackets 19 carrying guide rollers 21 fitting against the pillars 8, and cables 22 are adjustably connected to the brackets and pass over pulleys 12 on the tops of the pillars to winch drums 11 on the frame, the winch drums being mounted on shafts 10 carrying worm wheels 26 engaging worm gearing on a shaft 28 which is driven by an electric motor 29 through gearing 30. A reversing double pole switch 34, Fig. 5, for controlling the motor circuit is connected by linkage 38<1> to a sliding rod 36 carrying stops 38 adapted to be engaged at the upper and lower limits of travel of the movable platform by an arm 40 projecting from the platform, so as to break the circuit and stop the motor. Reference has been directed by the Comptroller to Specification 255,316.
Patent GB-638165-A (GB)
Title: Improvements in or relating to supersonic inspection apparatus
IPC: G01N29/11
Filed: 1947-05-20
Abstract: 638,165. Supersonic inspection devices. SPERRY PRODUCTS, Inc. May 20, 1947, No. 13519. Convention date, June 1, 1946. [Class 118 (ii)] Apparatus for inspecting a moving object with supersonic waves comprises a generator of continuous supersonic waves, transducing means for transmitting waves into the object and for receiving waves issuing therefrom, a circuit responsive to the time rate of change of the amplitude of the received waves, and an indicator for indicating rapid changes in the amplitude of the waves. As shown, a piezoelectric crystal 11, in contact with a moving object 10, is energized by a continuous oscillator 15 and serves as a transmitter and receiver. In a modification, a second crystal on the opposite side of the object serves as a receiver. The composite voltage on the crystal 11, from the oscillator 15 and reflections from the object 10, will normally have a constant range, but when a defect D is encountered, there will be a sudden high-frequency variation in the output of the crystal, and this is utilized to actuate a neon indicator 40. This output is rectified by a valve 20 and integrated by a filter including a condenser 21 and inductance 22. It is then passed through a series of rate differentiators 25, 26 and 25<SP>1</SP>, 26<SP>1</SP>, each comprising a condenser and resistance. A cathode follower circuit, including a valve 31, is arranged between the rate differentiators. The arrangement is such that only sudden and rapid changes in output from the crystal 11, due to defects D in the object, will be passed to an amplifier 30 and neon tube indicator 40. The Specification as open to inspection under Sect. 91 comprises also a generator providing pulses, including a gaseous discharge valve 50, Fig. 3 (Cancelled), controlling the discharge of a condenser 51 normally charged from a source 52, the condenser discharging through a circuit 53, 54, 55. The output from the crystal 11 is passed through a circuit similar to that described above, except that the amplifier 30 is connected to a cathode-ray tube 60 having a sweep circuit 61 operated by a synchronizer 62 which trips the discharge valve 50. The front face of each pulse will be passed by the rate differentiators and will be indicated at 65, a high-frequency variation due to a defect D will be shown as at 66 and the reflection of the pulse from the rear surface 14 of the object will be shown at 67. This subject-matter does not appear in the Specification as accepted.
Patent GB-330710-A (GB)
Title: Improvements in and relating to the propagation of wireless waves
IPC: H01Q19/12
Filed: 1929-05-01
Abstract: 330,710. Galletti, R. C., and Ferranti, Ltd. May 1, 1929. Aerials; directive signalling; thermionic generators.-A directed short-wave beam free from harmonies is radiated along the axis of a barrel - shaped reflecting system of insulated conductors a Fig. 1, mounted upon a structure of impregnated wood (not shown) and energized by hertzian oscillators c placed at one or both of the focal points. Back radiation is reflected forwards by an end screen j. An outer screen b of wire netting prevents external capacity effects. Each hertzian rod-oscillator comprises two half-wave rods e1, e2, Fig. 3. The rod e2 is cut away at its centre and is energized from a capacity backcoupled thermionic generator c, Fig. 1, through wire loops g, Fig. 3, adjustably coupled to the output circuit h, i, of the valve, and connecting three condensers f1, f2, f3 in series. To prevent the radiation of harmonics the twin rods are connected by short-circuiting blocks k at the fifth harmonic potential nodes, whilst capacity discs l1 - - l4 are located at other harmonic nodes. Specification 256,786 is referred to.