baber/WOPTO huggingface dataset:
Patent GB-878294-A (GB)
Title: Improvements in or relating to diffusion pumps
IPC: F04F9/00
Filed: 1957-11-01
Abstract: 878,294. Diffusion pumps. SONE, T. Nov. 1, 1957 [Nov. 1, 1956; Nov. 2, 1956; Nov. 7, 1956], No. 34198/57. Class 71. An oil diffusion pump comprises a housing 45, Fig. 1, connected to a boiler 11, in which is arranged an assembly comprising a divergent nozzle 69, a spacing nozzle 93 and a diffusing nozzle 127 extending through a cap 129. The cap 129 divides the housing into a high vacuum chamber 145 provide with an intake pipe 51, and a low vacuum chamber 149 communicating with an outlet pipe 53 leading to a backing pump. The bottom of the spacer nozzle 93 is smaller than the top 73 of the divergent nozzle whereby the periphery of the jet of vapour fed from the boiler flows through an annular orifice 91 formed thereby and contains molecules from the intake, these molecules being driven into the diffusion nozzle 127 by the control portion of the vapour stream passing through the spacer nozzle 93. The molecules are fed into the low vacuum chamber 149 and removed by the backing pump. The condensed vapour in the chambers 145 and 149 return to the boiler past the cap 129 and a guide 61. In a modified form, as shown in Fig. 3, the periphery of the vapour stream leaving the nozzle 69 entrains molecules from the intake pipe 51 while passing through nozzles 77, 81, 85 and carries these molecules into chamber 145 by the periphery of the jet flowing through the annular passage 91 formed between a diffusion nozzle 89 and a nozzle 93. The vapours condense in the chamber 145 and the molecules are entrained by the periphery of the vapour stream passing through nozzles 93, 97. The molecules are then discharged in a similar manner into a chamber 147 through the annular 117 formed by a second diffusion nozzle 103 and nozzle 119 and the molecules are then entrained-by flow of the vapour stream through nozzles 123, 127, 139. The molecules in the chamber 149 are removed by a backing pump as above. The housing 41 and nozzle 139 are preferably formed of glass and the depth of an oil film formed on the nozzle 139 provides a measure of the vacuum produced. Condensed vapour returns to the boiler past caps 137, 105 and guide 61.
Patent GB-487052-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B67/00
Filed: 1936-12-14
Abstract: 487,052. Sewing-machines. BRITISH UNITED SHOE MACHINERY CO., Ltd., and ELLIOTT, H.E. Dec. 14, 1936, No. 34218. Addition to 436,453. [Class 112] In a boot-sole sewing-machine having a curved hooked needle 16 working in a guide 34, such as is described in Specifications 23478/10, [Class 112], and 410,463, means are provided for lubricating the part of the needle forward of the guide after the needle is withdrawn from the work in the last cycle of the machine before it stops, the lubricant being impelled on to the needle from a duct 5 by means of a pump 3 of the type described in Specification 410,497. The pump actuating arm 9 is operated by a spring 33 attached to one arm of a lever 29 in the clutch - controlling mechanism of the machine; a second arm of the lever 29 is pivoted to a rod 23 which has a slotted end engaging a pin 27 on the arm 9. A bar 15, with a catch shoulder 17, slides in a slot 14 in the arm 9, which has fixed to it a catch-plate 13 overhanging the slot 14 ; the bar 15 is engaged by a roller 37 adjustably mounted on an arm on a rocking shaft 6. When the clutch treadle is depressed to start the machine the lever 29 is moved to raise the rod 23, carrying with it the arm 9, and the shaft 6 is turned to move the roller 37 away from the bar 15, which is thus allowed to swing forward so that the shoulder 17 engages under the catch-plate 13 on the arm 9 to hold this arm in the raised position ; as the machine comes to rest the shaft 6 is rotated to push the bar 15 back by means of the roller 37 so that the arm 9 is freed and is drawn downwards by the spring 33 to operate the pump 3. The spring 33, in addition to operating the pump arm, takes the place of the usual treadle return spring. The duct 5 may be arranged so that the lubricant is impelled on to the needle or the needle guide, and to enable lubricant to flow readily on to the needle from the top of the needle guide the latter may have a narrow longitudinal opening connecting its top face with the needle passage, in addition to the usual opening across the top of the guide. The time at which the pump is operated in the last cycle of the machine may be varied by adjustment of the roller 37 on its carrying arm. The device may be used in conjunction with lubricating means of the kind described in Specification 434,738.
Patent GB-302057-A (GB)
Title: Improvements relating to flickering devices for imitation fires
IPC: F24C7/00
Filed: 1927-12-17
Abstract: 302,057. Pate, G., and Laird, J. R. Dec. 17, 1927. Imitation fires.-A flicker device for imitation fires comprises a louvred dome 1 supported with a gimbal mounting on a pin 6 and rotated by the air currents rising from a lamp 7, together with a magnetic-needle 8 pivoted on a pin 9 secured to the gimbal cup 4. The frictional effect of the rotating pivot 9 causes the needle 8 to swing about the magnetic meridian, producing an irregular flicker effect. The Provisional Specification refers to arrangements of nested tubes gimballed together, which are either tilted in an irregular manner by the uprising air current, or are rotated by it and tilted by the attraction between a fixed magnet and armatures or magnets secured to them; or rotation may be produced by clockwork, electric motor, or other power, in which case the direction of rotation may be reversed at intervals. In the first construction a pivoted magnet is moved irregularly by the air current, whilst in that employing rotating tubes it is moved by the friction of the rotating pivot.
Patent GB-787648-A (GB)
Title: Improvements in or relating to the manufacture of glass discs
IPC: C03B19/02
Filed: 1954-11-25
Abstract: 787,648. Casting glass. PILKINGTON BROS., Ltd., and DAVIS, J. B. Nov. 3, 1955 [Nov. 25, 1954], No. 34257/54. Class 56. A ring mould for casting glass telescope discs includes a wall former of arcuate sections 1 loosely juxtaposed on a case 7 and held together by serrated latch bars 3 dropped into serrated brackets 2 at the edges of the sections. An encircling ring 9 may be provided ; this may rest directly on the base or, as shown, may rest in brackets 14 having spacer blocks 15 which slowly burn away under the heat of the glass and mould, and combustible blocks 16 may be provided under the bolt heads of the endconnectors of the encircling ring. A second encircling ring, higher up the mould, may be provided for use when thick discs are to be cast.
Patent GB-834787-A (GB)
Title: Improvements relating to bolts
Inventor: OWEN HENRY ARTHUR
IPC: F16B31/02
Filed: 1955-06-29
Abstract: 834,787. Bolts. NORTH BAR TOOL CO. Ltd., and NEWALL & CO. Ltd., A. P. June 11, 1956 [June 29, 1955], No. 34312/58. Divided out of 834,786. Class 89(1) A bolt comprises a screwed shank 4 with a head at one end and an extension 3 at the other, the extension being joined to the shank through a shearable neck 2. The extension may be plain, spiined or screwed, for gripping by a tool of the kind described in Specification 834,786. The tool also grips a nut being tightened on the shank, and applies thrust differentially on the nut and bolt until the extension shears off at the neck.
Patent GB-843514-A (GB)
Title: Mixing and thickening machine for extruding and granulating material
IPC: B29C48/515
Filed: 1957-11-05
Abstract: 843,514. Continuous and batch mixing machines. PASTORELLO, I. Nov. 5, 1957 [Nov. 21, 1956], No. 34493/57. Class 86 [Also in Group V] A mixing and extruding machine, particularly for plastic materials, comprises a fixed casing 1; a motor driven shaft 2 for a coaxial worm 3 extending across the casing and passing through a casing end wall 6; a fixed tubular shell 4 coaxial with and surrounding the worm and passing through the end wall 6, with the worm and shell terminating in an extrusion head 7 provided with a disc 8; and a tubular shaft 10 coaxial with and supported on the shell the shaft 10 being secured to the drive shaft 2 by a sleeve 9 and having mixing shovels 12 thereon, the shaft 10 and shell 4 being provided with inlet openings 14 and 15. The shell 4 secured to the casing by a flange 5 has an annular space for heating or cooling medium and the casing 1 is also provided with a jacket for such a medium. The shaft 2 and worm may be provided along its whole length with holes to allow circulation of heating or cooling fluids or to receive electrical heating resistances. In operation the materials are mixed in the casing by the shovels 12, the direction of rotation of the shaft 2 being such that the mixture does not enter the inlets 14, 15. When the rotation of the shaft 2 is reversed the mixture is passed through the inlets and finally extruded through the head 7. The annular space between the worm and shell tapers towards the head 7; the pitch and depth of the worm thread may be constant or variable; and the worm may have a single or multiple thread. If desired the shaft 10 may be rotated in the opposite direction to the shaft 2.
Patent GB-605354-A (GB)
Title: Improvements in or relating to circuit arrangements for electric discharge tubes
IPC: H05B41/46
Filed: 1945-12-20
Abstract: 605,354. Control systems for space discharge apparatus. PHILIPS LAMPS, Ltd. Dec. 20, 1945, No. 34502. Convention date, Dec. 10, 1940. [Class 38 (iv)] To prevent repeated attempts at starting or restarting a discharge lamp the lamp is disconnected altogether, when the heating of the choke or other accessory apparatus becomes excessive, by the action of a thermal switch which directs a current through the pre-heating circuit sufficient to blow a fuse therein or to disrupt a filament. In the form shown in Fig. 1, where the normal pre-heating circuit is through a starting thermal glow switch 9, unsuccessful starting of the lamp heats the choke 6 and finally closes the thermal switch 13 to short-circuit a portion of the choke and put an excessive current through the filament 3 and the fuse 10 enclosed therewith. The arrangement may also take account of the direct-current component taken by the lamp, which reduces the effectiveness of the choke, when the filaments become dissimilar for example; in Fig. 3, the thermal switch 40 acts on repeated mis-firing, whereas switch 41 acts with excessive direct-current component, each of the switches effecting a connection, as before, to blow the fuse 37.
Patent GB-630880-A (GB)
Title: Improvements in and relating to machines for the mechanical printing of textile fabrics
IPC: B41F9/00
Filed: 1946-11-21
Abstract: 630,880. Printing-machines. REBUFFA, E., and CIPRANDI, A. Nov. 21, 1946, No. 34502. Convention date, Jan. 8. [Class 100 (ii)] A machine for the mechanical multi-colour printing of textile fabrics comprises a frame, a number of engraved copper printing rollers 2 rotatably mounted in the frame and driven by gears, a number of similarly mounted pressure rollers 3 each in relationship with a respective printing roller and urged against it by springs, a pan 4 of water for each pressure roller, a brush 5 partly immersed therein and rolling on the roller, a scraper 6 taking up excess water from the under-side of the roller, a second scraper 7 gathering dye passed through the fabric from the upper side of the roller, a pan 14 of liquid dye for each printing roller, a feeding roller 13 partly immersed therein and rolling on the roller, a scraper 16 taking up excess of dye from the under-side of the roller, a second scraper 17 taking up dye not taken up by the fabric from the upper side of the roller, and means to drive the printing rollers. Six couples 2, 3 are arranged on the frame with the axes of the rollers 2 and those of the rollers 3 in parallel vertical, horizontal or inclined planes. The lowest roller 2 is driven by reduction gearing and the others by transmission gears therefrom. Each pair of rollers has a registering device for adjustment of the length of web path between successive rollers 2. The fabric passes between the rollers without any auxiliary underpieces such as blankets. The scrapers are adjustable by oscillation transversely to the rollers. Blowers or aspirators may be used to remove dye from the borders of the rollers 2 and 3 beyond the selvedge of the fabric. The Specification as open to inspection under Sect. 91 comprises also a scraper adjusting device comprising a system of eccentrics. This subject-matter does not appear in the Specification as accepted.
Patent GB-1213656-A (GB)
Title: Improvements in or relating to papermaking rolls
Inventor: DOUGLAS CECIL LEONARD
IPC: D21F1/46
Filed: 1967-07-27
Abstract: 1,213,656. Paper making rollers. W. GREEN SON & WAITE Ltd. 22 March, 1968 [27 July, 1967], No. 34522/67. Heading F2U. [Also in Division D2] In a papermaking roller in which axially spaced ring formers are connected to sets of oppositely inclined helical stiffening wires 10, 12, the latter are so arranged that their points of engagement with the formers are at separate points 38 spaced from the wire crossing points 40. As shown the ring formers are made from wire with strut portions 36a, 36b between inner and outer rings 32, 34, the struts being bent to form recesses at the engagement points 38. With plate disc formers, Fig. 3 (not shown), elongated slots (24a, 24b) are provided for the passage of the helical wires. The members are soldered or welded together at the points of engagement of the formers and the wires and at the wire crossing points 40.
Patent GB-739229-A (GB)
Title: Improvements in or relating to adjusting device
IPC: B02C7/14
Filed: 1953-12-11
Abstract: 739,229. Disc mills. LEE FOUNDATION FOR NUTRITIONAL RESEARCH. Dec. 11, 1953 [Dec. 18, 1952], No. 34547/53. Class 59. [Also in Groups XXII and XXV] An attrition mill of the type in which an abrasive rotor 16 rotates on a vertical axis and co-operates with an overlying centrally-apertured stator 17 has the stator adjustably supported at the underside of a circular mounting- plate 18 by means of a bolted joint (see Group XXII). A sheet-metal housing member 19 has a flat top wall 20 secured to the mounting plate and has a wall 21 surrounding the rotor and stator. The housing is carried by frame bars 22 secured to the top wall 20 and the lower edge of the housing wall has a bead for supporting a sieve 24 and filter tent 25. The mounting plate has a central opening and an upstanding central boss 27 with a conical seat 28 for receiving a hopper 29. An electric motor 30 is positioned in the hopper and a vertical driving shaft 33 is attached to a flanged rotor disc 35 which carries an abrasive stone 34. A fan 36 is disposed below the rotor disc and rotates therewith. The stator 17 comprises an abrasive stone 37 secured on a support ring 38, said stone having a circular bottom cavity 39 and a central opening 40. A cylindrical shell 41 extends in the registering openings of the mounting plate and stator stone and has a radial feeding arm 42 in the stone cavity 39.
Patent GB-1280887-A (GB)
Title: New isothiocyano-diphenylamines their production and compositions containing same
IPC: C07C325/00
Filed: 1969-07-11
Abstract: 1280887 Isothiocyano-diphenylamines AGRIPAT SA 11 July 1969 [12 July 1968] 34956/69 Heading C2C Novel compounds I where R is H or alkyl or alkenyl of at most 3C, R 1  and R 3  are H, halogen, CN, OH, NO 2 , CO 2 H, CF 3 , or alkyl, alkenyl, alkoxy, alkenyloxy, alkylthio or alkenylthio of at most 5C, or alkanoylamino, alkanoyl, alkanoyloxy or alkoxycarbonyl of at most 6C, or dialkylamino having a total of at most 5C, or groups of the formulµ -D-N(R<SP>1</SP>) 2  or -X-D-N(R<SP>1</SP>) 2  where D is alkylene of 2 or 3 C, R<SP>1</SP> is C 1-3  alkyl, the sum of the carbons of D and the two R<SP>1</SP> groups not exceeding 6, and X is O or S and R 2  is H, halogen, NO 2 , NCS or C 1-5  alkyl (an isothiocyano group must be in m- or p-position to any OH or CO 2 H in the phenyl nuclei or to the -NR- bridge when R is H, and when R, R 1  and R 3  are H, the group -NCS at ring B is in m- or p-position and an isothiocyano group R 2  is in m-position) are made: (a) by reacting II with Halogen.CS.Y (Halogen is Cl or Br, Y is Cl, Br or dialkylamino and R<SP>1</SP> 2  is H, halogen, NO 2 , NH 2  or C 1-5  alkyl) ; (b) by reacting II with III (m is 1 or 2 and alkyl has at most 4 C); (c) by reacting II with a pentathio-dipercarbonic acid-bis-(trihalogeno-alkyl)-ester ; or (d) by reacting II (R, R 1 , R<SP>1</SP> 2  and R 3  may not be NO 2 , CF 3  or carboxy) with ammonium thiocyanate in the presence of excess hydrogen chloride, or with benzoyl isothiocyanate to afford the corresponding thiourea which is subsequently decomposed to give I. The invention also comprises a process for making IV (also novel; R 4  is alkyl or alkenyl of at most 5 C or dialkylaminoalkyl of at most 6 C, Y is O or S, n is 0 or 1, R 5  is H, -NCS, halogen, NO 2 , CF 3 , or alkyl or alkenyl of at most 5 C, R 6  is H, halogen, NO 2 , CF 3 , alkyl or alkenyl of at most 5 C or is the group -YR 4 , the -NCS group at ring B and an isothiocyano group R 5  being in m- or pposition to the -NR- bridge in the case where R is H, or to a R 4 -Y group, and in those cases where n is 0, R 6  signifies the group -Y-R 4 ) by reacting V with a compound R 4 .Z (Z is C1, Br or I and R<SP>1</SP> 6  is H halogen, NO 2 , CF 3 , alkyl or alkenyl of at most 5 C or is the group -Y-H). Products I and IV, can, if desired, be converted into their quaternary ammonium or acid addition salts. The following compounds are also prepared: 1 - N - (41 - methylthiophenyl) - 4- amino - phenyl - thiourea, N - allyl - 4 - methoxy- 4<SP>1</SP> - nitro - diphenylamine, N - n - propyl - 4- methoxy - 41 - amino - diphenylamine and N- methyl - 4 - methoxy - 4<SP>1 </SP>- (nitro - and - amino)- diphenylamines. Pharmaceutical preparations active against parasitic helminths contain I and/or salts thereof as active ingredient; administration is preferably orally.
Patent GB-176869-A (GB)
Title: Improvements in the process of bleaching textile fabrics and materials
IPC: D06L4/00
Filed: 1920-12-11
Abstract: In the white bleaching and colour bleaching of textile fabrics and materials, the goods are first boiled in a solution of water, ammonia, soda ash, and soap.  They are then washed in hot soap liquor and chemicked.  According to the Provisional Specification, the material is chemicked both before and after the treatment with the hot soap liquor.ALSO:In the white bleaching and colour bleaching of textile fabrics and materials, the goods are first boiled in a solution of water, ammonia, soda ash, and soap.  They are then washed in hot soap liquor and chemicked.
Patent GB-847495-A (GB)
Title: Improvements relating to grabs
Inventor: CHILD ALBERT
IPC: B66C3/12
Filed: 1956-11-15
Abstract: 847,495. Grab-buckets; opening and closing mechanism. PRIESTMAN BROS. Ltd. Oct. 30, 1957 [Nov. 15, 1956], No. 34986/56. Class 78 (4). So that a double chain grab can be hoisted in the open position by the closing chain 7 a tumbler 26 can be positioned by a sliding link 20 secured to the opening chain 6, when the grab is suspended by that chain, so that it prevents passage of a button 35 on the closing chain 7. In the construction illustrated the tumbler 26 comprises a forked member which normally falls about its pivot 22 on the grab to a position determined by a stop 25, in which a wide portion 31 of the yoke permits the button 35 on the closing chain 7 to pass to close the grab. When the grab is subsequently suspended from the opening chain 6 the link 20, which connects the chain 6 to the body of the grab and has a slot 21 sliding over the pin 22, is pulled upwardly against a spring 32 so that a slot 29 on it engages a pin 28 on the tumbler 26 to raise it to the position shown in which it bears against a stop 27. The grab can be opened in this position by slackening the closing chain 7 so that the button 35 slides down inclined surfaces 32 on the tumbler 26 and is diverted through the wider opening 31. When however the closing chain is subsequently drawn in the button 35 is too wide to pass through a narrower portion 30 of the tumbler 26 so that the grab is raised by the closing chain but held open. The tumbler 26 is subsequently released when the grab is lowered on to material to be picked up. The invention permits the grab to be slung between two derricks, one of which carries the opening chain and the other the closing chain, so that it can transfer material from a position below the derrick carrying the closing chain to a position below the derrick carrying the opening chain and yet be returned from the latter position, by hauling on the closing chain, without the grab closing.
Patent GB-386780-A (GB)
Title: Improvements in leg guards for games
IPC: A63B71/12
Filed: 1931-12-18
Abstract: 386,780. Guards for games. SLAZENGERS, Ltd. and CHADWICK, A. P., Laurence Pountney Hill, Cannon Street, London. Dec. 18, 1931, No. 35124. [Class 132 (ii).] A leg-guard for games comprises a plurality of ribs, one or more of which being formed as a shield f, Fig. 2, of vulcanite, compressed fibre or other hard material with an inner backing g of spongy rubber. The whole is enclosed by a leather covering a. The guard has a wide central rib d, constructed as described above, and a number of narrower ribs e either similarly constructed or each made up of a cardboard shield h having a cane supporting member i and hair backing k.