baber/WOPTO huggingface dataset:
Patent GB-1452446-A (GB)
Title: U cutting devices
IPC: B27G19/06
Filed: 1975-05-01
Abstract: 1452446 Bandsaws BIZERBA WERKE WILHELM KRAUT KG 1 May 1975 [27 May 1974] 18166/75 Heading B5L A cutting device, such as a bandsaw, having a workfeed table 9 and upper and lower pulleys 6, 4 about which there is trained an endless cutter element 7 is provided with a guard 11 for the exposed portion of the cutter element, the guard being mounted and arranged so that when engaged by an article to be cut it is pivoted into engagement with a rotary friction drive wheel 15 and raised thereby substantially to the height of the article. The guard is biased forwardly i.e. away from the friction wheel by a spring 16 so that drive by the friction wheel 15 to raise the guard is broken as soon as contact with the article being fed is broken. A counterbalance weight 21 controls downward movement of the guard and an electromagnetically released locking device 22, 23, 24 locks the guard in its lowest position when the machine is switched off.
Patent GB-1138507-A (GB)
Title: Polyhydric derivatives of norbornane
IPC: C07C35/29
Filed: 1966-04-26
Abstract: 1,138,507. Norbornane derivatives. EASTMAN KODAK CO. 26 April, 1966 [27 April, 1965], No. 18309/66. Heading C2C. Polyhydric derivatives of norbornane are prepared by mixing either bicyclo-[2,2,1]-heptadiene or an ester of a bicyclo-[2,2,1]-hept-5-ene- 2-ol and a carboxylic acid with water or a polyhydric alcohol, and heating the mixture in the presence of a strong acid. Preferably the polyhydric alcohol is an aliphatic compound containing 1-10 carbon atoms or a cycloaliphatic compound containing 4-7 carbon atoms, e.g. ethylene glycol, propylene glycol, glycerol, trihydroxybutane, dihydroxy cyclohexane or a norbornane diol. Suitable strong acids are, for example, perchloric, p-toluene sulphonic and sulphuric acids. Examples describe the preparation of (a) norbornane diols; (b) 2,5- or 2,6- bis - (2 - hydroxyethoxy) - norbornane; (c) 2,5- or 2,6-bis-(2,3-dihydroxypropoxy)-norbornane; (d) 2-hydroxy-5- or -6-(2-hydroxyethoxy)-norbornane; (e) 2 - hydroxy - 5 - or - 6 - (2,3- dihydroxypropoxy) - norbornane; and 2 - hydroxy-5- or -6-(5- or -6-hydroxynorbornyl-2)- norbornane.
Patent GB-841187-A (GB)
Title: Improvements in or relating to container charging apparatus
IPC: B28C7/00
Filed: 1958-06-09
Abstract: 841,187. Hoppers; winches. ELBA-WERK, ETTLINGER BAUMASCHINEN - UND HEBEZEUGFABRIK G.m.b.H. June 9, 1958 [Nov. 7, 1957], No. 18380/58. Classes 78(1) and 78 (5). Hoppers 10 are positioned above container 9 to store and to discharge through respective valve-controller apertures 5 into the container the separate components of a concrete mix. The wooden hopper walls 4 are slid radially into position between pairs of uprights 2, and the framework 1, 2, 3 is releasably secured together by nuts and bolts for ease in assembly. The discharge valve 16 for each aperture 5 is caused to pivot about 17 by flexible member 18 actuated manually or mechanically. Winch, Fig. 1.-Winch 13 is mounted upon turntable 11 carried at 12 by framework 1, 2, 3 and operates a rope to actuate a hand-scraper (not shown), which feeds the materials into the hoppers 10.
Patent GB-1019279-A (GB)
Title: An apparatus for lifting crates in packing machines
IPC: B65B21/02
Filed: 1964-05-04
Abstract: 1,019,279. Raising and lowering crates. HOLSTEIN & KAPPERT MASCHINENFABRIK PHOENIX G.m.b.H. May 4, 1964 [May 11, 1963], No. 18396/64. Heading B8C. A rectilinear support frame 3 carrying crates to be raised to receive bottles or the like is suspended by its corners from two parallel endless chains whose motion is synchronized. One of the chains is driven by an hydraulic ram 13. The second chain is driven from the first by a guide wheel 8 and shaft 17. The crates are supported on platforms 2 for raising and lowering.
Patent GB-1503145-A (GB)
Title: Glass melting
IPC: C03B5/182
Filed: 1974-04-26
Abstract: 1503145 Glass melting PILKINGTON BROS Ltd 17 April 1975 [26 April 1974 (2)] 18457/74 and 18458/74 Heading C1M [Also in Division F4] A glass melting tank 11 comprises, situated between the melting and refining zones 19 and 20 and a conditioning zone 21 and discharge end 22, a liquid-cooled barrier 27, which extends horizontally across at least part of the tank width in the upper region of the melt 12 and in the path of forward flow of the melt, and two or more stirrers 28 mounted side-by-side across the tank, adjacent barrier 27 and in the direction of forward flow of the melt, for rotation about vertical axes (32) so as to stir the melt without imparting vertical motion thereto. The use of liquid-cooled barrier 27 enables the heat transfer from zones 19 and 20 to zone 21 to be controlled. The barrier 27 is preferably located in waist 24, and the depth of immersion of the barrier is preferably adjustable. Stirrers 28, like barrier 27, are preferably water-cooled. The stirrers may be arranged so as to rotate in phase or out of phase. The stirrers may comprise a hollow loop formed by a stainless steel tube 36 (Fig. 4, not shown). The loop may alternatively be filled by a central plate 35 of molybdenum (Fig. 5, not shown). The barrier 27 may comprise two "hairpin" arrangements 27a and 27b (Fig.6, not shown), each formed from a "U-shaped" tube through which water is passed.
Patent GB-948887-A (GB)
Title: Improvements in or relating to magnetic core shift registers
Inventor: JOHNSTON WILLIAM ROBERT
IPC: G11C19/04
Filed: 1962-05-15
Abstract: 948,887. Magnetic core shift registers. AMPEX CORPORATION. May 15, 1962, No. 18605/62. Heading G4C. [Also in Division H3] Each stage of a shifting register comprises a pair of storage cores 21,22; 23, 24, . . . . . , adjacent cores being linked by input and output windings such as 21-0,22-I which are wound in opposite senses, the input winding 221 having fewer turns and including a rectifier 42 in series, and the two windings being-connected in parallel to a clock pulse source. The parallel windings linking the odd-to-even cores 21,22; 23, 24; . . . . . are connected in series to an old clock pulse source 34, and the remaining parallel windings are series connected with an even clock pulse source 36, the two pulse sources operating alternately. Data is introduced by an input 30 and the output is either applied serially to a sink 68 or is obtained in parallel form from windings 21A-26A. Operation depends on the principle that no change of state of a core takes place if a binary zero is stored in a core subjected to a clock pulse, and the whole of the clock pulse current is consequently by-passed from the input winding which includes a series rectifier. On the other hand if a binary one is stored, the core is switched by the clock pulse, and the back e.m.f. causes sufficient current to pass through the rectifier and input winding to switch the succeeding core to the binary one state.
Patent GB-129738-A (GB)
Title: Improvements in or relating to Artillery Fire Control Apparatus.
Inventor: BONITI GERARDO
IPC: F41G3/14
Filed: 1917-12-14
Abstract: 129,738. Boniti, G. Dec. 14. 1917 Sights and methods of sighting.-Consists in apparatus for determining at an observing post the aiming data to be communicated to one or more distant posts, and comprises a sighting-member and one or more indicating-members each of which is capable of being adjusted horizontally and vertically into a position corresponding to the distant post, and is connected to the sight in such a way that the bearing angle and angle of sight of the target as seen from the distant post are indicated. The apparatus shown in Fig. 2 comprises a sightbar 18 and two indicators vertically adjusted on standards 28 which are horizontally adjustable on pivoted arms 29 so that the centre of each indicator can be adjusted into a position relatively to the centre of rotation of the sight-bar corresponding to the position of the distant post. Each indicator is connected to the sight by a taut wire 23 passing from the central point 53 in the indicator to a point 26 on the sight-bar corresponding to the target. When the sight-bar is laid on the target, the taut wires 23 indicate on vertical and horizontal scales 40, 47 the bearing angles and angles of sight of the target as seen from the distant posts, and the lengths of the wires from the points 53 to 26 indicate the ranges. In a modification, shown diagrammatically in Fig. 13, the sight-bar 64 is vertically adjustable on a central standard 63, and the angles made by the wire 67 with the horizontal plane and with a plane of reference respectively are measured by a goniometer 66.
Patent GB-1102274-A (GB)
Title: Hydraulic jack
IPC: B66F3/46
Filed: 1965-05-04
Abstract: 1,102,274. Jacks. RICHARD COSTAIN Ltd. 4 May, 1965 [8 May, 1964], No. 18835/65. Heading B8J. An hydraulic jack 1 comprises a nut 9, mounted on a screw-thread provided on a piston-rod 4, turned by an auxiliary mechanism which controls the jack stroke. The auxiliary mechanism consists of ratchet teeth 10 on the nut 9 co-operating with a pawl 11 actuated by a single-acting hydraulic cylinder 12 with a piston 13. Liquid under pressure from a source 6 is supplied simultaneously through pipes 7, 8 and a non-return valve 21 to a space 5 in the cylinder 2 and through a pipe 15 to a space 14 in the cylinder 13 by means of a control valve 16. The control valve 16 is actuated by electrical switches 17, 18 which co-operate with the pawl 11. After each partial rotation of the nut 9 corresponding to a selected predetermined jack stroke the switch 17, actuated by the pawl 11, effects a change-over of the control valve 16 to release the pressure in the pipes 7, 8, 15. A spring 19 returns the piston 13 when the pawl 11 actuates the switch 18 to change back the control valve 16 for a further stroke. The nut 9, which constantly bears on the cylinder 2 acts as a locking nut in case of pressure failure. A switch 20 actuated by the teeth 10 may be provided instead of or additional to the switch 17. The jack 1 has a relief system and a worm-wheel (not shown) may be provided on the periphery of the nut 9 to enable the jack 1 to be lowered. A system comprising several jacks with switches 18 connected in series so that all the jacks, which may be hydraulically independent and subject to different loads operate at the same average lifting speed. A system may comprise several jacks connected to a common hydraulic supply under a control valve actuated by a switch on one of the jacks, provided the jacks are equally loaded.
Patent GB-1043404-A (GB)
Title: Improvements in or relating to steering wheels
IPC: B29C45/14
Filed: 1963-05-14
Abstract: 1,043,404. Steering wheels. CEMPO S.A. May 14, 1963 [May 16, 1962], No. 19030/63. Heading B7J. [Also in Division B5] A steering wheel, Fig. 1, comprises a rim 2 connected by arms 3, Fig. 3 (not shown), with a hub 5, the rim and arms comprising synthetic plastic foam 11, Fig. 2 (not shown), having'a metallic core 1 embedded therein and covered with a sheath 4 of synthetic non-foamed plastic material. The sheath at the underside of the wheel is grooved at 8 and 9, the grooves being formed during the moulding of the wheel. A flexible synthetic plastic mould 6 and a cover mould 7 have applied thereto, skins 4<SP>1</SP> and 4<SP>11</SP>, which are cured in an oven. After cooling the mould 6 foam-forming liquid 10 is provided therein and the core 1 is set in position. The moulds are then bolted together so that the skins are butted at the grooves 8, 9. As the foam is formed and cured the gases evolved pass through a vent 12. The flexibility of the mould 6 permits extraction of the wheel therefrom after removal of the cover 7. In another embodiment the wheel is moulded in a single split flexible mould carried in a cradle as described with reference to Figs. 4 and 5 (not shown). The sheath 4 is formed in the split mould from a liquid initially introduced therein.
Patent GB-340506-A (GB)
Title: Improvements in or relating to pneumatic cushions, seats, upholstery or the like
IPC: A47C27/08
Filed: 1929-06-22
Abstract: 340,506. Air cushions. MOSELEY & SONS, Ltd., D., BERMINGHAM, G. E., and RANDALL, A. H. C., Chapel Field Works, Ardwick, Manchester. June 22, 1929, No. 19202. [Class 52 (iv).] An air cushion is subdivided by extensible rubber partitions 11 of thicker cross section than the walls 10 of the cushion. Specification 299,563, [Class 52 (iv), Upholstery &c.], is referred to.
Patent GB-482567-A (GB)
Title: Improvements in or relating to hoist line hooks
IPC: E21B19/04
Filed: 1937-07-12
Abstract: 482,567. Safety hooks. JACKSON, L. MELLERSH-. (Jackson Co., B.) July 12, 1937, No. 19303. [Class 89 (ii)] A hoist-line hook 1 having an arm 13 closing the entrance to a bail-receiving notch 9 of the hook and a latch 17 holding the arm in place, is provided above the notch 9 with a concave recess 21 which takes the shock if the bail is jerked back by breakage of the line.
Patent GB-788407-A (GB)
Title: Improvements relating to catamenial tampons
Inventor: PARISH FRANK P
IPC: A61F13/20
Filed: 1955-07-04
Abstract: The entrant end of a catamenial tampon is coated with a tip comprising a film of water-dispersible material, to act as a lubricant beneath which there is an additional layer which prevents the material of the tampon absorbing solvents or other fluids used in preparing the outer film.  A suitable layer is made from a soap paste which is applied to the tampon either by being forced through a tube or by hand.
Patent GB-1474109-A (GB)
Title: Hydrocarbon reforming process
IPC: C10G35/09
Filed: 1974-05-03
Abstract: 1474109 Reforming hydrocarbons ATLANTIC RICHFIELD CO 3 May 1974 [7 May 1973] 19579/74 Heading C5E A catalyst comprising a porous support, 0À01 to 3À0 wt. per cent of at least one platinum group metal and 0À01 to 5% rhenium is used in the presence of hydrogen to reform a hydrocarbon feed containing 15-100 p.p.m. by weight of sulphur for a contact time such that 0À5 to 50 moles of sulphur per mole of rhenium on the catalyst is passed into the contact zone thereby reducing the inherent hydrocracking activity of said catalyst and then to reform a hydrocarbon chargestock containing less than 10 p.p.m. sulphur. The hydrocarbon feed and the hydrocarbon chargestock can be straightrun natural or synthetic gasoline, thermally or catalytically cracked gasoline or heavy naphtha boiling within the range 50-425‹ F. The said chargestock can be obtained by hydrodesulphurizing a sulphur-containing hydrocarbon which can be used as the said hydrocarbon feed; alternatively the said feed can be produced by adding sulphur compounds to a hydrocarbon which can be used as the said chargestock. In examples, a catalyst comprising an alumina support, Pt, Re and C1 is used at 300 p.s.i.g. and temperatures of 950‹ and 955‹ F. to reform naphtha feeds containing 32 p.p.m. and 47 p.p.m. sulphur, respectively, added as thiophene and 8 p.p.m. Cl added as chlorobenzene and then to reform the same naphtha without added thiophene.
Patent GB-773143-A (GB)
Title: Manufacture of hydrazobenzenes
IPC: C07C241/02
Filed: 1952-08-01
Abstract: In the manufacture of hydrazobenzenes by the reduction of the corresponding nitro compounds or reducible reduction products thereof by means of iron and caustic alkali solution, the concentration of the caustic alkali solution is maintained substantially at least at its initial value throughout the reaction.  The initial concentration of the caustic alkali solution is advantageously 40-60 per cent by weight (preferably as low as possible in the range 40-50 per cent), and may be maintained or even increased (especially after the azobenzene stage has been reached) by adding caustic alkali solution of higher concentration or solid caustic alkali or by distilling off water during the reaction, or advantageously by a combination of both means.  The reaction is desirably effected in the presence of a solvent for the hydrazobenzene produced.  In examples: (1) iron filings or borings are added gradually to a heated mixture of nitrobenzene, mixed xylenes and 60 per cent caustic soda solution, in an apparatus fitted with a reflux condenser and water separator, and solid caustic soda is added when the azo stage is reached; (2) the caustic soda solution in (1) is replaced by a 40 per cent solution, solid caustic is added gradually commencing as soon as the addition of iron is complete, and water is distilled off at the azo stage; (3) iron which has been used repeatedly is employed in the process of (2), fresh iron and some water being added after water has been distilled off at the azo stage; (4) in the process of (3) the final addition of water is replaced by addition of 35 per cent caustic soda solution.  Additional starting materials specified are o-nitroanisole, o - nitrochlorobenzene, o - nitro - toluene, 4 - chloro - 2 - nitroanisole, and the corresponding azoxy and azo compounds. Specifications 15706/01, [Class 2 (iii)], and 391,774 are referred to.
Patent GB-257251-A (GB)
IPC: B21J15/36
Filed: 1926-08-09
Abstract: 257,251. Junkers, H. Aug. 21, 1925, [Convention date]. Addition to 238,833. Riveting. - Holders-up, longitudinally controlled as claimed in the parent Specification, are resiliently supported either within the work or within an auxiliary member resting on the work, so that the inertia of the holder-up may be utilized to assist in closing the head of the rivet within the tube &c. The holder-up 4, Fig. 1, may be connected by flat springs to a longitudinally movable support 2, or it may be supported directly by the work by spring-pressed plungers or balls 75, 76, Fig. 13. In a modification, the holder-up 4, Fig. 5, is formed as a slide in the auxiliary member 13, guide-pins 15 and supporting-springs 12 being provided. An approximately triangular slot 24, adapted to engage with a pin inserted through a rivet hole, is formed in the holder-up to prevent twisting during the passage of the holder-up through the tube &c. In a further modification, the holder-up 4, Fig. 8, is urged radially by wedges 32, 33 connected by a longitudinal tension spring 31, the wedges being adapted to be drawn apart so as to withdraw the holder-up to avoid obstructions within the tube &c. In a further modification, a series of sector-shaped holders-up are radially controlled by co-operating cones 48, 49, Fig. 10, relatively movable longitudinally under spring pressure 50. The holders-up are collapsed radially by light tension springs 64, on movement of the plunger 62 to separate the cones 48, 49. The juxtaposed edges of the holder-up sectors may be of spiral form.
Patent GB-676343-A (GB)
Title: A multi-position electric switch
IPC: H01H19/08
Filed: 1950-08-09
Abstract: 676,343. Mechanical switches, without quickaction. OAK MANUFACTURING CO. Aug. 9, 1950. [March 9, 1950] No. 19798/50. Class 38 (v). Each section of a multiposition switch comprises a contact-carrying insulating rotor 20 and a contact-carrying insulating stator 10, which comprises laminations 32, 33. The rotor is mounted on a shaft 19 and carries annular contacts 23, 24 on its two faces, respectively, the contacts co-operating with contacts 44, comprising jaws 47, 48 on the stator. Each lamination 32, 33 has a rotorreceiving aperture and teeth 39, 41 directed radially inwards to the aperture, the teeth and spaces therebetween being arranged radially inwards of contact-mounting holes 34, and staggered relatively to each other, so that the teeth on one lamination are opposite the spaces on the other, the contacts 44 being arranged alternately on each side of the stator in the spaces between the teeth. Some of these contacts are longer than the others, and the contacts 23, 24 have portions 30 co-operating with the longer contacts. In a modification (not shown), the laminated stator is used in a linear switch in which the moving contacts move in a straight line. An indexing mechanism may be provided in the rotary switch. Specifications 478,391, 478,392 and 522,540 are referred to.
Patent GB-182006-A (GB)
Title: Centrifugal drying machine for coal or other granular material
IPC: B04B1/02
Filed: 1921-07-23
Abstract: 182,006. Fabry, R. F. F. July 23, 1921. Density separators -. A centrifugal drying- machine for coal or other granular material has a conical shell A of unperforated metal secured to a spider B on the shaft C, and a cylindrical shell G secured to the conical part A by angle-irons H, I and bolts J. A circular slit M is left between the shells A, G, and this may be adjusted to suit the grade of material employed by varying the number or thickness of the spacing-washers K. A regulated supply of material passes through the shoot S, which can swivel around the edge T of the casing and be fixed by a bolt V on the quadrant U. A cleaning-door 0 is provided in the casing, and a partition P is arranged to form two outlets, one Q, for the dried coal which escapes from the cylindrical shell G, the other, R, for the water or sludge which escapes through the circular slit M. Compressed air supplied through the nozzle Y is used when necessary to clear the slit M.
Patent GB-600253-A (GB)
Title: Electric pulse modulation systems
IPC: H03K7/08
Filed: 1944-10-13
Abstract: 600,253. Valve modulating circuits; pulse modulation. STANDARD. TELEPHONES & CABLES, Ltd. Oct. 13, 1944, No. 19853. Convention date, Oct. 15, 1943. [Class 40 (v)] An arrangement for pulse-modulating a carrier wave comprises a device for absorbing energy from the resonant circuit determining the carrier frequency, the device being controlled by the pulses so that it alternately assumes absorbing and non-absorbing conditions, one of these conditions corresponding to the pulse durations. As shown, a sinusoidal voltage from a source 12, Fig. 1, is converted in a known cusper modulator 10, for example as described in Specification 600,244, and shaper 20 into rectangular pulses 26-... , 29 ... , which may be of positive or negative polarity. Voice or other signals applied, for example, through microphone 30, time modulate the pulses which are applied over line 22 to the grid of a triode 42, connected across the tuned circuit LC of the carrier frequency oscillator 33. The triode 42 is normally at zero bias, switch contacts 48, 49 being closed, and operates as a diode to absorb the energy of the carrier wave oscillatory circuit and prevent its operation. The modulated pulses bias the triode 42 to cut-off so that corresponding to each pulse the oscillator 33 operates to produce a carrier wave train 26a .... The pulse modulated carrier output is taken from an adjustable tap 62 on the load potentiometer 38 shunted by an A.C. voltmeter 60. To adjust the carrier amplitude, contact arm 48 is moved to contact 50, thereby biassing the tube 42 to cut-off. The potentiometer 37 is then adjusted to give a suitable reading on the voltmeter 60. A desired fraction of this value may then be obtained for the output by adjusting the tap 62 to the corresponding voltage-dividing ratio as indicated on the scale.
Patent GB-938371-A (GB)
Title: Improvements in or relating to pelmets for curtains and the like
IPC: A47H2/00
Filed: 1958-07-20
Abstract: 938,371. Pelmets; suspending curtains. G. H. I. CORNWELL. Oct. 20, 1959 [July 20, 1958], No. 19876/58. Class 52 (5). In a pelmet shaped as shown, the ends of the rear wall are in-turned and formed each with a vertical array of indentations 22 to allow the fixing, at a selected vertical position, of a curtain support 21 running centrally within the pelmet. The rear wall and/or the top wall are formed with apertures for support screws, nails or suction cups for wall and/or ceiling mounting. The pelmet may be made of extruded plastics, wood or metal.