baber/WOPTO huggingface dataset:
Patent GB-359227-A (GB)
Title: Improvements in rackets for tennis and like games
IPC: A63B51/12
Filed: 1930-10-31
Abstract: 359,227. Rackets. CRAVEN, E. J., 978, State Street, Springfield, Massachusetts, U.S.A. Oct. 31, 1930, No. 32734. [Class 132 (ii).] In an open-throated tennis or like racket, some of the longitudinal strings pass through the bridgepiece and engage eyes, spaced longitudinally in a member movably located within and adjustable longitudinally of the handle by means of a screw - threaded member extending through the handle. The longitudinal reaches 8 of the string 21 pass through the bottom of the frame 1 or through a bridge-piece 26 and thence through longitudinally disposed eyes 15 in a rod 9, in the handle 5, the outer strings passing by way of apertures 6a in the throat 6. The tension on these strings is adjusted by rotation of a cap 12 pinned at 13 to a sleeve 11 which is screwed on to the lower end of the rod 9, which is frictionally prevented from rotating. Two methods of threading the longitudinal reach string through the eyes 15 are described. There may be four of these strings each allocated to an eye 15, or the single string 21 may have all of its reaches passing through a single eye. The eyes may be replaced by hooks.
Patent GB-502505-A (GB)
Title: Improvements in or relating to excavators
IPC: E02F3/30
Filed: 1937-11-27
Abstract: 502,505. Excavators. BURGESS, A. F. (Menck & Hambrock Ges.) Nov. 27, 1937, No. 32825. [Class 68 (i)] In an excavator with a pivoted boom pivotally carrying a dipper stick on which a bucket is pivoted, a digging or drag cable is secured to the boom and a lifting cable and a tilting cable are respectively adapted to turn the bucket in opposite directions about its pivot, and, when the bucket is turned into position for transporting a load, its centre of gravity is raised by the pull on the lifting cable, and oscillation of the bucket is prevented by the lifting and tilting cables during its transporting movement. In Fig. 1, a digging cable 17 leads from a drum 16 to the dipper stick 8, and a lifting cable 12 passes from a drum 15 by pulleys 49, 18, 13, 19 to a point 21 on the bucket 9, a curved guide 20 maintaining the pull of the cable 12 outside the pivotal point 10 of the bucket; a tilting cable 22 passes from a drum 23 directly, or by pulleys 26, 26, 27, to a point 28 on the bucket and oo-operatea with guide 20 to tilt the bucket into digging position. After digging, the boom 6 is lifted and the dipper stick rocked by the cable 12 which also holds the bucket in transporting position. Pulley 27 and guide 20 may have the same diameter. In Fig. 2, the lifting cable 12 passes from pulley 18 directly to a track 32. on the bucket, and the tilting cable 22 passes by pulleys 26, 29 displaced from the boom pivot 5 and dipper stick pivot 7 respectively, and over a track 30 on the bucket formed so as to give variable leverage ; the pulley 29 may be on the boom. In Fig. 5, the lifting cable 12 paases over a drum 37 to act on the bucket through gearing 38, 39; the tilting cable 22 may pass in a reverse direction around the drum or over a track 47. The gear 39 may be eccentric to the bucket pivot 10 and connected to the bucket by a crank and link. In Fig. 7, the cables 12, 22 pass oppositely round drums 45 to drive pinions 43 engaging racks 44 on the dipper stick and connected to the bucket through bent arm 41.
Patent GB-1390303-A (GB)
Title: Safety brake for a carriage conveying fuel assemblies in a nuclear reacotr
IPC: G21C19/32
Filed: 1973-07-10
Abstract: 1390303 Stress limiting devices; catch gear COMMISSARIAT A L'ENERGIE ATOMIQUE 10 July 1973 [10 July 1972] 32884/73 Headings B8L and B8B [Also in Divisions F2 and G6] A safety brake for a carriage 13 conveying fuel assemblies in a nuclear reactor comprises a brake body 15 slideable under control of a hauling chain 29 along a guide slope 16, and supporting the carriage 13 therebelow, the body 15 pivotally mounting cams 50, 51, which upon breakage of the chain 29, rotate to either wedge against the guide slope 16, or engage a discontinuity 34 therein, to arrest the body 15. Each of the cams 50, 51 includes a toothed section in mesh with a toothed rack 49 on a slide 41 slideably mounted within the body 15, the chain 29 being attached to the upper end of the slide which is biased by a spring 45 against the chain pulling force. Upon slackness in the chain 29, the slide 41 moves under spring action causing rotation of the cams 50, 51. The cam profile includes a stop 59, engageable with a stop 60 on the body 15 to limit cam rotation, a progressive spiral to wedge against the slope sides, and an abutment to engage said discontinuity 34. The carriage 13 is suspended from the brake body 15 by stirrups 14 each comprising two oblong rings which are plasticially deformable to absorb kinetic energy of the carriage when the body 15 is stopped.
Patent GB-326495-A (GB)
Title: Improvements in devices for the stacking or packing of biscuits and the like articles
IPC: B65B23/12
Filed: 1928-11-10
Abstract: 326,495. Vicars, Ltd., T. & T., and Crosland, E. M. Nov. 10, 1928. Endless-belt conveyers.-In stripping or transferring biscuits or other articles of similar shape and contour from pans or conveyers, a number of the articles is periodically engaged and held stationary whilst the pan &c. moves on, the arrangement maintaining the relative spacing of the articles whilst stripping them from the pan &c. A conveyer 1 comprising trays 2, 3 on which rows 4, 5 of biscuits are disposed, brings the trays beneath rows 7 - - 10 of brushes; the brushes descend simultaneously and retain the biscuits while the tray is moved on by the conveyer, the biscuits dropping on to a lower conveyer 34 as the tray passes from beneath them, and the brushes being raised successively to clear the biscuits on the next tray. The conveyer 34 feeds the biscuits between parallel guides 20, down a slope 5 on to conveyer rollers 19 which are set at an angle less than a right angle to the path of the conveyer, the arrangement drawing the biscuits into contact with corresponding sides of the guides 20. From the rollers 19, the biscuits fall in a vertical position on to a conveyer 23. In modifications, the conveyer 34 moves at right angles to the conveyer 1 and spring plungers replace the brushes. If desired, the retaining means may themselves move along or across the trays to assist the transference of the biscuits.
Patent GB-896786-A (GB)
Title: Catalyst feeding
IPC: C08F10/00
Filed: 1958-10-15
Abstract: A method of feeding powdered solid catalyst into a reactor comprises continuously feeding the catalyst at a controlled rate into a zone provided with a discharge opening communicating with the reactor and continuously feeding a liquid at an independently controlled rate into the zone, the liquid passing through said discharge opening and carrying catalyst therewith as a slurry of controlled solids content into the reactor, a body of said liquid being maintained in said zone and fresh liquid being supplied thereto at such a rate as to maintain the volume of liquid therein between predetermined limits.  The invention also consists of an apparatus comprising said reactor, zone (a vessel) and discharge opening; means for continuously supplying at independent rates the catalyst and liquid, and means for maintaining within predetermined limits a head of liquid in the vessel.  The catalyst may be introduced by way of a pipe below the liquid level; preferably within the pipe is a screw conveyer adapted to forward the catalyst through the pipe at a lower rate near the outlet than at the inlet so as to cause the catalyst to form a plug sealing the outlet against ingress of liquid.  Specification 790,195 is referred to.ALSO:Polymerization of olefines, particularly ethylene, is effected in a solvent with solid catalyst (e.g. thermally activated chromia-silica-alumina) slurried therein, the catalyst being supplied by continuously feeding it at a controlled rate into a zone provided with a discharge opening communicating with the reactor and continuously feeding a liquid at an independently controlled rate into the zone, the liquid passing through said discharge opening and carrying catalyst therewith as a slurry of controlled solids content into the reactor, a body of said liquid being maintained in said zone and fresh liquid being supplied thereto at such a rate as to maintain the volume of liquid therein between predetermined limits; the contents of the reactor are withdrawn in a measure as olefine and fresh catalyst slurry are supplied thereto.  Other monomers listed are propylene, 1- and 2- butene, -pentene, -hexene and -octene; 2-and 3-methyl-1-butene; isobutylene, 1-dodecene, 4-methyl-1-pentene, 2-methyl-2-butene, cyclohexene, 4-vinylcyclohexene, butadiene and isoprene; mixtures of these specified monomers, and unspecified methyl, ethyl or chloro-substituted conjugated diolefins.  The usual hydrocarbon solvents are mentioned, cyclohexane being particularly preferred.  Specification 790,195 is referred to.
Patent GB-1003297-A (GB)
Title: Improvements in or relating to printing mechanisms
Inventor: GOY IIEINZ
IPC: G06M3/06
Filed: 1962-08-28
Abstract: 1,003,297. Counters. SIEMENS & HALSKE A.G. Aug. 28, 1962, No. 32930/62. Heading G4D. A flow-meter drives directly the lowest indicating wheel Z 1 , but at the end of a dispensing operation a print is taken not only of the units but also of the first decimal place, the unit printing wheel D 1  being therefore brought into proper alignment. The indicating wheels such as Z 1  drive associated printing wheels such as D 1  through gears such as ZR 1 . Z 1  also drives at increased speed a 4-toothed wheel M 2 , each tooth of which corresponds to the distance between adjacent digits on the units wheel Z 1 . Printing is effected by manual counterclockwise rotation of shaft W, whereupon cam St moves M 2  and therefore D 1  backwards into proper printing alignment. At the same time a friction wheel R advances the decimal printing wheel D 0  the appropriate amount. A pawl SpH locks the indicating wheel Z 1  during this adjustment.
Patent GB-1081415-A (GB)
Title: Method of improving the adhesion characteristics of polyolefin surfaces
IPC: B05D5/04
Filed: 1964-08-13
Abstract: A method of treating a polyolefin body to render all or part of a surface of the body adherent to printing ink comprises producing a coating on at least the surface to be printed, prior to printing, with an oxidised low molecular weight alpha-olefin polymer having a molecular weight of from 1000 to 3000.  The coating may be applied as an organic solution or aqueous emulsion which may contain metal or amine salts of fatty acids, polyoxyethylene fatty alcohol derivatives or partial fatty acid esters of hexitol anhydrides e.g. sorbitan tristearate as emulsifier, by air-spraying or by immersion.  The coating solution may be heated the substrate may also be heated before and/or after the coating.  The substrate may be a polyolefin film, sheet, or bottle or other container.  The coated surface may be printed by flexographic, silk screen or rotogravure inks.
Patent GB-535127-A (GB)
Title: Improvements in or relating to antenna circuit modulation systems
IPC: H03C1/00
Filed: 1939-12-29
Abstract: 535,127. Wireless transmitting systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Dec. 29, 1939, No. 33062. Convention date, Dec. 30, 1938. [Class 40 (v)] [Also in Group XXXIX] In a radio system of the kind in which the carrier wave and the side-band waves are radiated separately, one of these waves creates an omnidirectional field, and the other a rotating field. As shown in Fig. 1, the carrier is fed from a source 1 through amplifiers 3, 5 to a vertical aerial 7. The carrier is also fed to a pair of balanced modulators 17, 19 where it is modulated by quadrature phases of the signal current, which are supplied thereto from a signal source 13 through a phase-splitting device 15. The resulting side-bands are amplified at 21, 23 and fed in pushpull relation to pairs of aerials 9, 11 arranged at the comers of a square around the aerial 7. An omnidirectional field is thus created by the carrier, whilst the side-bands create a radiation field which rotates at signal frequency. The four comer aerials 9, 11 may be energized in parallel for radiating the omnidirectional field, the central aerial 7 being dispensed with. In a modification, Fig. 3 (not shown), the aerials 9, 11 are energized by quadrature phases of the carrier thus creating a radiation field rotating at carrier frequency, whilst the centre aerial 7 radiates a single side-band omnidirectionally. The single sideband is produced by modulating quadrature phases of the carrier by quadrature phases of the signal and combining the outputs from the balanced modulators. Fig. 2 shows the manner in which the two-phase signal currents are produced. The signal from a source 33 is modulated on a carrier from source 37 in a balanced modulator 35 and the upper side-band, separated by a filter 39, is then modulated at 43, 45 by two quadrature phases of the carrier derived from the phase-splitting device 41. The two phases of the signal are taken off through low-pass filters 47, 49. Specification 535,396 is referred to.
Patent GB-323599-A (GB)
Title: Improved means for balancing the forces set up by the reciprocating parts of tobacco cutting machines
IPC: A24B7/02
Filed: 1928-11-12
Abstract: 323,599. Legg, Ltd., R., and Schreiber, P. Q. R. Nov. 12, 1928. Cutting tobacco.-A knife back C which is carried on and guided by two vibrating levers D pivoted at the rear of the machine is connected bv two rods 1 to the two outer throws 2 of a three-throw crank shaft mounted in uprights 3. The middle throw 4 is connected by a link 5 to a balance weight 6 carried on a pair of pivoted arms 7 similar to the levers D. Other arrangements of crank shaft throws to balance the forces set up by the reciprocation of the knife and its associated parts may be made. The knife back and the counterbalance may be guided in slides, the pivoted levers being dispensed with.
Patent GB-405773-A (GB)
Title: Improvements in and relating to means for eliminating undesirable harmonics in electrical circuits
IPC: H02J3/01
Filed: 1932-11-23
Abstract: 405,773. Supply systems. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London, and COE, R. T., Brandreth, Dunchurch Road, Overslade, Rugby. Nov. 23, 1932, No. 33148. [Class 38 (iv).] Depending on two or more machines running generators in series ;controlling power factor by auxiliary machines.- An arrangement for eliminating undesirable harmonics in an electric circuit S1 comprises generators H1, H2 of harmonic voltages and a condenser C connected in series across the circuit S1. The generators are driven preferably by means of synchronous motors M1, M2 and the phase of the injected harmonics can be varied by rocking the stators. The condenser gives a back e.m.f. in the circuit of fundamental frequency and thus avoids the necessity of using an additional series connected generator of fundamental frequency. Each harmonic generator is provided with a low resistance squirrel cage winding in the pole face to effect balance of the armature reaction. A switch T is provided to enable the generators to be switched out and the condenser to be used for power-factor correction. A polyphase arrangement is described. When used with a high voltage circuit the apparatus can be coupled through a transformer.
Patent GB-1332078-A (GB)
Title: Electromagnetic print hammer apparatus
IPC: B41J9/38
Filed: 1971-07-15
Abstract: 1332078 Print hammers INTERNATIONAL BUSINESS MACHINES CORP 15 July 1971 [12 Aug 1970] 33155/71 Heading B6F A print hammer assembly comprises a pair of magnetic members 15, 18 defining a zig-zag shaped air gap 19 therebetween owing to teeth 16, 17, and print hammers 9 between respective pairs of teeth, each print hammer carrying an energizing coil (11, Fig. 3, not shown). The magnetic members 15, 18 may be permanently magnetized or energized by coils 26a, 26b. As shown the magnetic members 15, 18 are in the form of U-shaped yokes, each hammer 9 passing through two aligned air gaps. The magnetic members are separated by non- magnetic material 20. Each hammer is mounted on leaf springs 10a, 10b which may carry current for the coil (11), and which may be replaced by rigid links.
Patent GB-1529933-A (GB)
Title: Endless belts
IPC: B29C35/02
Filed: 1977-11-09
Abstract: 1529933 Vulcanizing endless belts J H FENNER & CO Ltd 9 Nov 1977 [10 Aug 1976] 33194/76 Heading C3E A vulcanizing machine comprises a plurality of belt guide means including a heated vulcanizing roller or drum for supporting belts to be vulcanized for movement around an endless path, means for altering said path in order to remove said belts from contact with said roller or drum and thereby discontinue heating of said belts and means to bring said belts to a required constant length or tension by stretching the same. As shown in Fig. 1, belt 14 may be supported on vulcanizing drum 10 and guide roller 12 during vulcanization. On completion of vulcanization, auxiliary rollers 16 are laterally separated and displaced as shown in Fig. 2 towards the upper surface of drum 10 so as to remove belt 14 from contact therewith, guide roller 12 being repositioned so as to maintain the belt length constant. Roller 12 is subsequently displaced so as to stretch the belt to the required length or tension and the belt is cooled.
Patent GB-1337313-A (GB)
Title: Evaporative treatment of liquids
IPC: B01D1/14
Filed: 1971-07-15
Abstract: 1337313 Reconditioning electrolyte in copper refining COPPER REFINERIES PTY Ltd 15 July 1971 [22 July 1970] 33225/71 Heading C7B [Also in Division B1] A liquor which has been used as electrolyte in copper refining is evaporated by discharging hot combustion gases from liquid-fuel burner 11 into the liquor by means of chamber 1 which dips into the liquor (see level 14), the chamber being provided with a jacket 2, for circulation of cooling-water, and with a ring of nozzles 13 for directing steam or water on to the interior surfaces of the chamber in order to flush solid particles therefrom. It is preferred to direct short intermittent blasts of steam towards the roof and side walls of the chamber. The steam condenses on the cooled inner surfaces, and a film of water runs the walls. A suspension of solid impurities, such as nickel sulphate, in concentrated liquor leaves the bath of liquor and is cooled to precipitate more solids, the solids then being separated from the refined liquor.
Patent GB-307534-A (GB)
Title: Improvements in refrigerating apparatus
IPC: F25D3/00
Filed: 1927-12-09
Abstract: 307,534. General Electric Co., Ltd., and Barber, N. E. Dec. 9, 1927. Cooling gases and liquids; brine, circulating through chambers. - In refrigerating systems wherein brine, air or other fluid cooled by a refrigerating coil 6 is used to cool a chamber &c., a part only of the medium is cooled to a low temperature by the coil, while the greater part is cooled by slow conduction through a relatively non-conducting imperforate partition 3. Ice-moulds &c. 8 may be placed in the part of the medium at the lower temperature so as to be quickly frozen. The refrigerating device may be of the rotating sphere type.
Patent GB-757809-A (GB)
Title: Improvements in or relating to two-wheeled power driven machines
Inventor: CAUDWELL PHILIP GORDON
IPC: A01D34/08
Filed: 1953-12-02
Abstract: 757,809. Walk-type tractors. ALLEN & SONS (OXFORD), Ltd., J. Dec. 2, 1954 [Dec. 2, 1953], No. 33450/53. Class 79 (1). In a two-wheeled walk-type tractor having rearwardly-extending guiding and controlling handles 17 and capable of mounting an implement 16 at the front, the wheels 15 are mounted on axles 18 carried by the lower ends of arms 19 pivoted at their upper ends 20 to side aprons 13, 14 depending from a platform 11 carrying an engine 12, whereby the wheels are movable forwardly or rearwardly of a vertical plane containing the centre of gravity of the engine, thus permitting the tractor and implement to be balanced. As shown, the engine 12 drives the implement and the wheels 15, the latter through pulleys 25, belts 26, pulleys 27 and sprockets 28 chain-connected to sprockets 29 secured to the wheels. The aprons 13, 14 have slots 22, 24 permitting the arms 19 to be clamped in their desired positions.
Patent GB-872943-A (GB)
Title: Improvements in and relating to derivatives of cyclopropane
Filed: 1957-10-28
Abstract: The invention comprises bases of the general formula <FORM:0872943/IV (b)/1> wherein NR2 represents a C2-8 dialkylamino or a piperidino, pyrrolidino or morpholino radical, R1 and R2 represent C1-4 alkyl radicals or hydrogen atoms, R3 represents a hydrogen atom, a C3-5 hydroxyalkyl radical or its ester, or a C2-5 acyl radical, and Ar represents a phenyl radical optionally substituted with C1-4 alkyl or alkoxy radicals or halogen atoms, or Ar2 represents an o-biphenylene radical) and their acid addition and quaternary ammonium salts, and pharmaceutical preparations containing them (see Group VI) and the preparation of the bases by the processes of the examples, which may be summarized as: reacting a diarylddiazomethane Ar2CN2 with an unsaturated carbonyl compound of the general formula <FORM:0872943/IV (b)/2> wherein COZ and Z1 represent groups subsequently converted to CH2NR2 and R3 respectively, or Z1 may also represent hydrogen. Intermediates formed in various embodiments of this process are exemplified by the following formulae:-  <FORM:0872943/IV (b)/3> <FORM:0872943/IV (b)/4> Reference is also made to the formation of R3=COCH3 by oxidation of R3=CHOH.CH3.ALSO:Pharmaceutical preparations, useful for the treatment of Parkinsonism or as spasmolytics or analgesics, contain one or more cyclopropane derivatives of the general formula <FORM:0872943/VI/1> or an acid addition salt (e.g. hydrochloride) or quaternary ammonium salt (e.g. methiodide) thereof.  They may take the form of injectable solutions or tablets.
Patent GB-636431-A (GB)
Title: Improvements in and relating to elements of troughs, ducts, and the like
IPC: F16L25/00
Filed: 1947-12-19
Abstract: 636,431. Conduits. RUCHTI, C., BESSON, H., and PAYOT, C. Dec. 19, 1947, No. 33657. Convention date, June 30, 1939. [Class 36] An element 1 for a conduit has its ends cut along a sinuous line so as to form lugs 6 and recesses 7 to engage with corresponding recesses and lugs in an adjacent element 2 in such a way that the elements cannot move away laterally from one another. The lugs 6 are bevelled on their inner faces 8 to fit with closures 9 provided on the inner side of recesses 7. The lugs 6 and recesses 7 are also bevelled on their outer edges at 10 to permit the assembled conduit to follow a slightly curved path. The elements may be tubular or trough shaped having a cover 3, and may be straight or curved. They may be made of any mouldable material such as cement, concrete, brick or metal.
Patent GB-307772-A (GB)
Title: Improvements in or relating to straining devices for nets used in the game of lawn tennis and the like
IPC: A63B61/02
Filed: 1927-12-13
Abstract: 307,772. Carver, E. C. Dec. 13, 1927. Cord strainers.-In a strainer in which a chain b, Fig. 3, secured to a tennis-net cord is passed over a sprocket wheel a which is rotated by a bifurcated lever m, Fig. 2, backward rotation of the sprocket wheel is prevented by the engagement of rollers j, cams, or wedges between the wheel and its socket d. The rollers &c. are released by pins g which are forced upwardly by a lever p. Alternatively the rollers may bear between the periphery of the wheel and the support. The sprocket wheel may be replaced by a grooved pulley having a hook in the groove to which the looped end of the net cord is secured. The lever m may be dispensed with and the wheel rotated by a spanner fitted on a squared boss on the wheel.