baber/WOPTO huggingface dataset:
Patent GB-415474-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F01N5/00
Filed: 1933-02-27
Abstract: 415,474. Motor power plant; cycles. FITCH, E. L., 5, Bellevue Road, Friern Barnet, London. Feb. 27, 1933, No. 5953. [Class 7 (ii).] Exhaust gases are admitted into an engine cylinder, compressed, and water injected for conversion into steam and expansion on the following stroke. Such a cycle may alternate with a two or four-stroke cycle in an internalcombustion engine, or may be effected in a subsidiary engine. As shown the lines a, b represent an ordinary two-stroke cycle with oil injection at the point o. The exhaust remaining or re-drawn is compressed on stroke e, water injected at or near the point w, and the exhaust and resulting steam after expansion on stroke f passes partly to a steam receiver h, partly to a compound engine or a turbine k and the remainder to a condenser n. The greater part of the exhaust is drawn by way of a receiver d and connection p into a subsidiary engine, in which it is compressed, water being injected at the point w, followed by expansion stroke s and exhaust to the steam receiver h. The cycle e, w, f may be omitted, all exhaust passing to the receiver d. Cylinders closed at both ends may be used, steam &c. from the receiver h being admitted to the ends not used for combustion or compression, thereby absorbing heat from the cylinder walls and piston.
Patent GB-663398-A (GB)
Title: Improvements in and relating to gas turbine installations
IPC: F02C3/26
Filed: 1949-03-04
Abstract: 663,398. Gas turbine plant. SIMMERING- GRAZ-PAUKER, AKT.-GES. FUR MASCHINEN-, KESSELUND WAGGONBAU, and LEDINEGG, M. March 4, 1949 [Nov. 26, 1948], No. 5995/49. Class 110(iii) [Also in Group XII] Pulverulent fuel is burnt in a chamber 5 at a temperature which produces liquid slag. The slag is thrown on to the chamber walls by the whirling of the gases and is drawn off at 12. The walls are cooled by buried pipes 4 through which air from a heat-exchanger 2 is circulated. The air is afterwards collected in a chamber 7 and passed through nozzles 8 into the combustion gases. The gases are cleaned in a cyclone separator 13 in front of the turbine 14. The pipes 4 are connected by a heater 6 and the flows in adjacent pipes are in opposite directions. There may be two exhaust heat-exchangers; the air being passed through the second one before reaching the pipes 4 and through the first one before being added to the combustion gases. In this case, the flow in all the pipes 4 is in one direction. Alternatively, the air passes straight from'the compressor to the pipes 4 and is heated by the exhaust gases before mixing with the combustion gases. The heat remaining in the gases after the heatexchanger is used in a steam generator. Specification 616,864 is referred to.
Patent GB-911178-A (GB)
Title: Cable slitting device
IPC: H02G1/12
Filed: 1961-02-20
Abstract: 911,178. Stripping cables. AGOMBAR, E. D., and AGOMBAR, A. B. Feb. 20, 1961 [Jan. 25, 1961], No. 6223/61. Class 36. [Also in Group XXII] A cable slitter comprises a body, two cutting assemblies mounted for rotation thereon, each including a cutting disc, and means for driving the cable between the cutting discs to form a pair of slots along it. The body comprises a casing 11 over which a cap 12 can slide. There are holes in the cap 12 which receive the ends of two axles which support a guide spool 14 and a cutting assembly A. Co-operating with the roller 14 is a feed roller 13 which may be knurled or corrugated and there is a second cutting assembly B. Each cutting assembly comprises a pair of spool elements 20 and a disc cutter 18 mounted on a shaft 19 for rotation about the supporting axle. The device is manually operated, by a handle 15 which drives the roller 13, or may be arranged for power drive. The separation of the feed rollers 13, and 14 and the cutting assemblies A and B is adjusted by a screw 30 and there are elongated slots in the casing to allow for movement of the axles of the roller 14 and the cutting assembly A. The range of cable sizes accommodated is increased by the provision of alternative holes 37 to take the axles. The device is particularly for use on mineral insulated metal sheathed cables.
Patent GB-907605-A (GB)
Title: Improvements in slide locks for bracelets and the like
IPC: A44C5/22
Filed: 1961-02-21
Abstract: 907,605. Bracelets. FORSTNER Inc. Feb. 21, 1961 [March 14, 1960], No. 6256/61. Class 43. [Also in Group XXV] A bracelet comprises a pair of chain members, the free ends of which extend through opposed openings in a slide lock, in which guide means frictionally engage the chain members and spring means engage and urge the guide means into frictional engagement with the chain members wherein relative movement between the slide lock and chain members varies the effective length of the chain members. The free ends of the bracelet pass through opposed apertures in two interfitting shells 52, 54 comprising the slide lock 50. The edge of one shell frictionally engages the flanged rim of the other shell. The concave surfaces of a pair of curved springs 70 within the slide lock engage the convex surfaces of two guides 62 to frictionally grip the ends. The convex surfaces provide a channel for the free ends. The free ends may comprise chain links attached to an extensible bracelet.
Patent GB-1390933-A (GB)
Title: Tool for placing fasteners
IPC: B25B27/00
Filed: 1971-03-08
Abstract: 1390933 Blind riveting AVDEL Ltd 8 March 1972 [8 March 1971] 6285/71 Heading B3U A fastener having a tubular body and a head is set in sheet material by a tool comprising a head engaging means 30, Fig. 2, having a tapered portion 40 and an abutment surface 62, Fig. 5, adjacent to and peripherally of the portion 40 which surface is shaped as the internal surface of a hollow truncated cone and extends at right angles to the external surface of the portion 40, and body engaging means 32 mounted for movement relative to the head engaging means to cause radial expansion of the body by the entry of portion 40 in the body followed by the axial collapse of the fastener. In operation a threaded drawbolt 54 is rotated either by hand or by a pneumatic motor to engage a threaded portion of the fastener and drive the portion 40 into the head of the fastener body. The body is thus expanded into an interference fit with the sheet material after which surface 62 abuts the fastener head. On further rotation of the drawbolt, the fastener is axially collapsed to set the fastener.
Patent GB-213404-A (GB)
Title: Improvements in weighing machines
IPC: G01G21/30
Filed: 1923-03-05
Abstract: 213,404. Brown, S. C., and Denison & Son, Ltd., S. March 5, 1923. Weigh-bridges.-A shoot A to protect such parts as the link B, bearings B<1>, B<2>, and lever C from water, dirt, &c. passing between the platform D and the frame E of a, weigh-bridge is secured at the frame instead of to a moving part of the mechanism. The shoot may be secured by hooks F engaging lugs G on the frame, or it may be otherwise secured, as by bolts. A strut H maintains the shoot in an upright position. The shoot slopes in both directions from a central apex, and is preferably of U-section.
Patent GB-670277-A (GB)
Title: An improved method of making binder cases for bound or loose-leaf books
IPC: B42C7/00
Filed: 1947-10-31
Abstract: 670,277. Compound sheet material seaming non-metallic sheet material. NATIONAL BLANK BOOK CO. Oct. 31, 1947 [Nov. 15, 1946], No. 6325/49. Divided out of 670,233. Classes 42 (i) and 140. [Also in Group XV] In the manufacture of a binder case for a bound or loose - leaf book, creases are provided in a sheet 22 of stiffening, heat - sealable material along hinge lines, the sheet is pinned in position on the face of a heatsealing tool having ridges corresponding to the hinge lines and to a peripheral margin of the binder case, a sheet 6 of limp thermoplastic material large enough to cover the stiffening sheet all over is laid thereover, and the sheets are heat-sealed together along the said hinge lines and margin to leave the laminations loose at least in the cover areas between the hinge lines and the peripheral margin. The pins 4 for pinning the sheet on the heatsealing tool may be provided on a back panel strip 8 positioned between the stiffening sheet and the limp sheet, the pins extending through holes in the stiffening sheet. The invention also includes the manufacture of a binder case construction as described in Specification 670,233 by using a back panel strip such as 8 to pin a limp thermoplastic cover sheet and a smaller stiffening sheet on to a heat-sealing tool, laying over the stiffening sheet and panel strip a second limp thermoplastic sheet, and heat-sealing the two limp sheets together peripherally outside the stiffening sheet. Specification 610,050,[Group XV], also is referred to.
Patent GB-234924-A (GB)
Title: Improvements in and connected with the control of the conditions of operation of electric motor generator sets
Filed: 1924-03-12
Abstract: 234,924. English Electric Co., Ltd., and Birrer, J. March 12, 1924. Motor-generators. - In a motor-generator set, the separate excitation of a synchronous motor 13 driving a continuous-current generator 14 is dependent in part on a field winding 3 which is arranged to be opened automatically when there is a reversal of current through the generator or an insufficient excitation thereof. The generator is used for controlling motors 18 in the Ward-Leonard method. An electromagnetic switch 2 is actuated by the combined effects of a winding 6 energized proportionally to the current in the generator-motor circuit, and a winding 5, the energization of which is increased as the generator shunt field 7 is strengthened by a rheostatic controller 20.
Patent GB-681736-A (GB)
Title: Improvements in or relating to dyestuffs and photographic emulsions containing the same
Inventor: KENDALL JOHN DAVID
IPC: C09B23/02
Filed: 1950-03-14
Abstract: Dyes of the general formula <FORM:0681736/IV (c)/1> wherein R1 and R3 are the same or different and each represents an alkyl, hydroxyalkyl, or aralkyl group, D1 and D2 are the same or different and each represents the residue of a benzthiazole, naphthathiazole, or indolenine ring system, and x is 0 or 1, are prepared by heating a dye of the general formula <FORM:0681736/IV (c)/2> wherein R2 is an alkyl or aralkyl group and X is an acid radicle, with a tertiary amine, e.g. triethylamine or pyridine. The starting dyes need not be isolated but may be formed in situ. 1 - (3 - Ethyldihydrobenzthiazolylidene) - 3 - (3 - methyldihydrobenzthiazolylidene) - 2 - thiopropane is prepared by boiling together 2-b  : b -bis-(methylthio) - vinylbenzthiazole methiodide, 2-methylbenzthiazole ethiodide, and pyridine, and pouring into water. 1-(3-Ethyl-5-methyldihydrobenzthiazolylidene) - 3 - (3 - ethyldihydrobenzthiazolylidene) - 2 - thiopropane is prepared by boiling 3: 31 - diethyl - 5 - methyl - 9 - methylthiothiacarbocyanine iodide in pyridine.  1 : 3 - Bis - (3 - ethyl - 2 : 3 - dihydrobenzthiazolylidene) - 2 - thiopropane is prepared from 3 : 3) - diethyl - 9 - ethylthiothiacarbocyanine iodide by boiling with pyridine or heating with N-ethylpiperidine.  1-(3-Methyl-2 : 3 - dihydrobenzthiazolylidene) - 5 - (1 : 3 : 3 - trimethyldihydroindilylidene) - 2 - thio - 3 - pentene is prepared by boiling 1 : 3 : 3 : 31 - tetramethyl - 11 - ethylthioindothiadicarbocyanine iodide with pyridine. 1-(3-Methyl-4 : 5-benzdihydrobenzthiazolylidene) - 3 - (3 - ethyldihydrobenzthiazolylidene) - 2 - thiopropane is similarly prepared.  Specification 633,824 is referred to.
Patent GB-740357-A (GB)
Title: Improved means for loading and compressing household refuse or the like into containers
IPC: B65F3/20
Filed: 1952-03-12
Abstract: 740,357. Charging sealed refuse vehicles; compacting loads. FEIDERT, J. March 12, 1952 [March 13, 1951], No. 6398/52. Addition to 696,636. Class 78 (4). The non-return flap valves of the parent Specification. are replaced by a sliding valve which prevents material passing from the receptacle back to the cylinder 4. As shown, the valve comprises a shaped piston 7 slid in a cylinder 9 by a hydraulic ram 8.
Patent GB-820369-A (GB)
Title: Improvements in and relating to vehicle suspension systems
Inventor: WATTS LAURENCE DEREK
IPC: B60K17/36
Filed: 1956-03-01
Abstract: 820,369. Road vehicle spring suspensions. SCAMMELL LORRIES Ltd. April 17, 1957 [March 1, 1956], No. 6447/56. Class 108(2) [Also in Group XXXI] In a vehicle having two forward coaxial axles 1 in tandem with two rear coaxial axles 2, an independent fluid suspension system on each side of the vehicle comprises equalising means between each forward axle and the corresponding rear axle, including a fluid pressure element 21 on each axle and fluid pressure connections 25, 26 between the elements 21 on the same side of the vehicle. The elements 21 and connections 25, 26 may contain a hydraulic fluid providing a non- resilient equalizing means. Alternatively an air reservoir 27 may be connected to the pipe 25 to provide a resilient suspension. In modifications (not shown) the reservoir 27 is replaced by a closed cylinder containing air under pressure separated from the hydraulic fluid by a floating piston or a flexible diaphragm, or by a bellows or other air receptacle immersed in a hydraulic pressure vessel. The hydraulic fluid may be replaced entirely by a resilient or elastic fluid. Each suspension element 21 comprises a piston reciprocating in a cylinder which may be upright or inverted, and provided with a shield 22. The suspension elements may act as shock absorbers by restricting the fluid flow in one direction. The overall height of the vehicle may be adjusted by means of a pressure pump connected to the fluid pressure system and driven by the vehicle engine. A triangular member 6 secured to each axle 1 or 2 has a ball joint connection 7 to a bracket 8 fixed to a side member 9 of the chassis frame. The suspension elements 21 are connected between brackets 24 on the side frames 9 and crossbars 23 extending between the side arms of triangulated brackets 17 secured to the axles. Transverse links 19 having ball connections 18 to the brackets 17 restrain the four axles from transverse movement. The opposite ends of the links 19 have ball connections 18 to brackets 10 or to extensions of the brackets 8 carrying the ball joints 7 for the rear axles 2. Each axle is driven from a propeller shaft 4 or 5 having universal joints 12 and driven from transposing gear boxes 13. Each gear box drives the two propeller shafts 4 and 5 on its side of the vehicle, the shaft 5 being driven through an additional shaft 14. A connection 16 may be provided for driving a front axle. Specification 728,123 is referred to in the Provisional Specification.
Patent GB-1366961-A (GB)
Title: Roller blind assemblies
IPC: E06B9/42
Filed: 1972-02-11
Abstract: 1366961 Roller blinds BEAUTY BLINDS Ltd 29 Jan 1973 [11 Feb 1972] 6502/72 HeadingA4B A roller blind assembly comprises a roller with a recess 3 and a blind with a stiffening strip 6 adhered along one edge which is located in the recess. The strip is of metal or plastics and wide enough to prevent its rotation in the recess. A further strip 8 is adhered to the bottom of the blind and located in a bottom board 9. Roller 1 is of metal or plastics.
Patent GB-340857-A (GB)
Title: Improvements in and relating to lifting trucks
IPC: B62B3/06
Filed: 1930-02-27
Abstract: 340,857. Hand trucks. CROAD, A. K., 70, Chancery Lane, London.-(Yale & Towne Manufacturing Co. ; Stamford, Connecticut, U.S.A.) Feb. 27, 1930, No. 6553. [Class 108 (i).] Hand-trucks having elevating platforms are provided with a member connected to the steering handle which member engages with another member on the elevating platform having a number of arcuate interengaging portions whereby the operation of the steering handle in any steering position is enabled to raise the platform by successive strokes. The handle 17 is provided with a hook 16 adapted to engage a member 15 on the elevating platform 6 which member 15 has two arcuate portions 18, 19. The platform 6 is carried on the main frame 5 by a series of compound links 11, 13. The link 11 is pivoted to the main frame 5 and is provided with an extension which normally bears on a stop 12 and is also provided with a stop 14 against which the link is caused to bear after the first elevating stroke. The hook 16 engages with the portion 19 during the first stroke and raises the platform through the rotation of the links 13 alone. The frame is then locked in its intermediate position by a hook 22 engaging a portion 21 on the elevating platform. The steering handle is then moved forward to allow the hook 16 to engage the portion 18 and the platform is lifted about the compound links 11, 13 which then act as one link. The platform is then locked by a depression in the hook 22 engaging the portion 21. The platform is lowered by releasing the hooks 16, 21 which then descends against the action of a brake device 26.
Patent GB-796957-A (GB)
Title: Apparatus for use in starting internal combustion engines
IPC: F02N1/00
Filed: 1955-03-07
Abstract: 796,957. Engine turning-gear, SIMMS MOTOR UNITS, Ltd., and ROBINSON, E. L. March 22, 1956 [March 7, 1955], No. 6676/55. Class 7(5) [Also in Group XXXV] Apparatus for use in starting internalcombustion engines comprises means for storing energy, an electrical generator arranged to be driven mechanically by the energy-storing means by energy stored therein, electrical connection means for connecting the electric output of the generator to the starter motor circuit of an internal combustion engine and means adapted for operation by personal physical effort to drive the energy-storing means. As shown, a heavy flywheel 13 is mounted on a shaft 14 which carries the armature 15 of an electric generator or is connected to the armature by a chain of gears. A handle 17 is provided for manually rotating and accelerating the flywheel 13 and armature 15. The generator stator 28 has two field windings a main series winding 31 and a small shunt winding 32. A voltmeter 34 may be connected between the terminals D, E to provide an indication of the speed of the rotor. The winding 32 may be brought into circuit by the push button 33 which may then be a double pole unit. When the starter motor circuit has a solenoid operated starter switch the terminals D, E are connected in place of the normal battery and the terminal S connected to the solenoid when the starter motor has a manually operated switch, e.g, a manually operated fork for engaging the starter motor with the engine which fork closes the switch in the last part of its travel; the terminals D and E are connected in place of the battery. The unit may be mounted permanently or temporarily in a vehicle craft or installation and switching may be provided to enable a single unit to start any one of a number of engines. A weight suspended by a cord passing over a pulley may be employed instead of a flywheel. The Specification refers to starting compression ignition engines and vehicle or other diesel engines.
Patent GB-116693-A (GB)
Title: Improvements in or relating to Screening Apparatus.
Inventor: SCHAER ALFRED
IPC: B07B1/38
Filed: 1918-04-22
Abstract: 116,693. Schar, A. June 13, 1917, [Convention date]. Sieves with compound motion.-The sieve boxes 15a, 15<b>, carry arms 13, 14 which engage crankpins diametrically opposite to each other on a rotating shaft 17. On stationary spindles 16a, 16b, one on each side of the shaft are pivoted levers 8, 18 each coupled at one end to one box and at the other to the other box. The arrangement provides that the boxes while moving in circular paths move together and apart parallel to themselves. The invention may be embodied in a freely oscillating plansifter.
Patent GB-1221402-A (GB)
Title: Coating composition
Inventor: BARLOW DAVID OSHER
IPC: D21H19/60
Filed: 1969-02-07
Abstract: 1,221,402. Paper-coating compositions. E. I. DU PONT DE NEMOURS & CO. 7 Feb., 1969 [8 Feb., 1968], No. 6862/69. Heading C3P. [Also in Division B2] An aqueous composition for coating paper comprises 100 parts by weight of a mineral clay filler, 1-3 parts by weight of polyvinyl alcohol, 7-12 parts by weight of a synthetic polymer, 0À5-1À5 parts by weight of glyoxal, and 0À05- 0-5 parts by weight of a water-retention aid, the weight ratio of polyvinyl alcohol to synthetic polymer being no greater than 0À35 :1 and the solids content of said composition being from 35-65%. In the examples the polymer is a styrene-butadiene copolymer and the waterretention aid is carboxymethyl cellulose.
Patent GB-104788-A (GB)
Title: Improvements in Charge Moistening Devices for Internal Combustion Engines.
Inventor: WARHURST PHILIP EWART
IPC: F02M35/02
Filed: 1916-05-16
Abstract: 104,788. Warhurst, P. E. May 16. 1916. Charge, moistening.-Moist air is supplied to the carburettor intake, or to the induction pipe between the carburettor and the engine, from a chamber A containing an absorbent lining a, upon which water is dropped from a pipe B connected to the cooling-water system, and provided with a vibrating valve b. Air enters at a' and leaves by a pipe D, which may be placed along or coiled round the exhaust pipe to facilitate vaporization of the water. The chamber A may be concave on one side to fit the exhaust pipe, or it may surround the exhaust pipe.
Patent GB-819051-A (GB)
Title: Contacting of solids and gases
IPC: C07C255/51
Filed: 1958-03-05
Abstract: <PICT:0819051/III/1> In an apparatus for reacting solids with gases, the solid in particulate form is carried as a suspension in an inert gas heated to a temperature below the softening point of the solid, through a cooling zone immediately after which it passes together with the reactant gas heated to a temperature above the softening point of the solid, to a vaporizer where the solid particles react with the gas and then flow into a reactor which may contain a dehydrating catalyst.  For example, phthalonitrile is made by feeding iso-or terephthalic acid through a star valve into a tube 7, Fig. 1, where it forms a suspension in nitrogen heated at 60/400  DEG  F. admitted in a pipe 9.  Ammonia gas admitted through a pipe 10 and heated at 800/100  DEG  F. carries the suspension into a vaporizer 14, any conducted heat being absorbed in a jacket condenser 11, which prevents the solid particles melting in advance of the ammonia treatment.  The mixed product passes to a dehydration reactor, heated externally at 750 DEG  to 850 DEG  F., and containing a catalyst, e.g. alumina, silica, or thoria, whereby phthalonitrile is formed. This is recovered from the vapours issuing from a line 15, by solvent extraction or by crystallization.ALSO:Phthalonitriles are made by feeding powdered iso- or terephthalic acid into a tube 7, Fig. 1, where it forms a suspension in nitrogen heated below the melting-point of the acid, and injected through a pipe 9.  Ammonia gas admitted through a pipe 10 and heated at 800/1000 DEG  F. carries the suspension into a vaporizer 14, any <PICT:0819051/IV (b)/1> conducted heat being absorbed in a jacket condenser 11, which prevents the acid particles melting in advance of the ammonia treatment.  The mixed product passes to a dehydration reactor 15, heated externally to 750 DEG  to 850 DEG  F., and containing a catalyst, e.g. thoria, silica, or alumina, whereby phthalonitrile is formed, substantially free from side-reaction products.  The product vapours issuing from a line 22 are submitted to solvent extraction, or crystallization to recover the phthalonitrile.