baber/WOPTO huggingface dataset:
Patent GB-728879-A (GB)
Title: Improvements in hatchway constructions for cargo vessels
IPC: B63B25/18
Filed: 1953-08-12
Abstract: 728,879. Hatch covers and cargo fittings. MACGREGOR, R., and MACGREGOR, J. Dec. 8, 1953 [Aug. 12, 1953], No. 22188/53. Class 113 (1). In a vessel having a weather deck 6 and a 'tween deck 4 wherein the weather deck hatchway is spanned by portable beams 11 disposed under its hatch covers 9 (arranged for vertical stowage at 9a, e.g. as described in Specification 649,384), the 'tween deck hatchway is provided with a cover at one or each end comprising an inner and an outer section hinged together at 14, the outer section 13 being hinged to the 'tween deck at 15, and the inner section 12 being capable of being swung up and held in a position at right angles to the outer section (as shown to the left in Fig. 1) thus dividing the 'tween deck hold above its hatchway into a feeder for the main hold 2 and a separate feeder for the 'tween deck hold 5, or, alternatively, the inner section 12 can be folded over on top of the outer for vertical stowage within the weather deck hatchway coaming 8 as shown dotted to the right in Fig. 1, said coaming being wider and longer than the 'tween deck hatchway for this purpose. Portable channelled posts 18, 18a, 19, 20, 20a are provided to support detachable anti-shift boards 21 (which may be constructed as described in Specification 722,546). The vertical side spaces spanning the upstanding sections 12 are shut off by drop-down flaps hinged underneath the weather deck.
Patent GB-823890-A (GB)
Title: Improvements in roof structures
IPC: B60P3/34
Filed: 1957-07-12
Abstract: 823,890. Vehicle bodies. WALTER Ltd., M., and CARTE, C. H. W April 29, 1958 [July 12, 1957], No. 22190/57. Class 108(1) An opening in a vehicle roof is surrounded by a frame 1 to which is hinged at 6 a cover 7, and at 8 hoop-sticks 3 which support a flexible cover 10. When the cover 7 is closed the hoop-sticks of flexible cover 10 are concealed under the cover 7.
Patent GB-210867-A (GB)
Title: Improvements in the construction of floating vessels
IPC: B63B3/14
Filed: 1922-08-15
Abstract: 210,867. Millar, W. Aug. 15, 1922. Grant of Patent refused. Frames and framing.-Vessels framed as described in Specification 106,124 in which inter alia strong reinforced side frames are arranged in line with strong pillar beams, the intermediate side frames being of less depths, are modified bv substituting for the reinforced side frames, frames 4 which extend inboard to the same extent as the intermediate side frames. Compensation for the omission of the reinforced frames may be achieved in various ways, for example by more closely spacing the pillar beams, or by reducing the spacing of the side frames in the vicinity of the pillar beams. Gussets 14, 15 connect the pillar beam 1 with side frames and vertical bulkhead stiffeners 5. Stringers 19 stiffened at their edge may be provided. The invention is applicable to ships with single or with double bottoms.
Patent GB-410454-A (GB)
Title: Improvements in or relating to the preparation of aromatic sulphide compounds
IPC: C08K5/47
Filed: 1932-08-08
Abstract: Arylaminomethyl-arylenethiazylsulphides which are assigned the general formula R1--S--CH2--NH--R wherein R is an aryl group substituted or not, and R1 is an arylthiazyl group, are prepared by reacting together a mercaptothiazole, a primary aromatic amine and formaldehyde.  Suitable mercaptothiazoles include 2-mercaptobenzthiazole, 2-mercaptotolylthiazole, 2-mercapto-5- or -6-nitrobenzthiazole, 2-mercapto-5- or -6-chlorbenzthiazole, and in examples the reacting together of 2-mercapto-benzthiazole, formaldehyde and aniline, o-toluidine, p-toluidine, or p-xylidine is described.  The reaction products of 2-mercaptobenzthiazole, formaldehyde and o-chloraniline, p-chloraniline, 2 : 5-dichloraniline, p-anisidine, a -naphthylamine or b -naphthylamine, of 5 - chloro - mercaptobenzthiazole, formaldehyde and aniline, of 5-nitro-mercaptobenzthiazole, formaldehyde and o-toluidine, aniline or b -naphthylamine, are also specified.  The products are vulcanization accelerators.ALSO:Arylaminomethyl arylenethiazylsulphides are employed as vulcanization accelerators for rubber.  The compounds are assigned the general formula R1-S-CH2-NHR wherein R is an aryl group substituted or not, and R1 is an arylthiazyl group, and they may be prepared by reacting a mercaptothiazole, a primary aromatic amine and formaldehyde together under conditions precluding the elimination of hydrogensulphide. Suitable mercaptothiazoles are 2-mercaptobenzthiazole, 2-mercaptotolylthiazole, 2-mercapto-6-nitrobenzthiazole, 2-mercapto-5-or-6-nitrobenzthiazole, 2 - mercapto - 6 - ethoxybenzthiazole and 2-mercapto-5 or 6-chlorbenzthiazole, and in examples the reacting together of 2-mercapto-benzthiazole, formaldehyde, and anillne, o-toluidine, p-toluidine or p-xylidine is described.  Data illustrating the accelerating properties of the first three of these products are furnished.  The reaction products of 2-mercaptobenzthiazole, formaldehyde and o-chloraniline, p-chloraniline, a -naphthylamine, b -naphthylamine, 2.5-dichloraniline or p-anisidine, of 5-chlormercaptobenzthiazole formaldehyde and aniline, of 5-nitromercaptobenzthiazole, formaldehyde and o-toluidine, b -naphthylamine, or aniline, are also specified.  The products may be used in the vulcanization of rubber goods generally including balata, guttapercha &c., and may be added prior to vulcanization together with the usual compounding ingredients, the presence of zinc oxide and fatty acid or their equivalents being particularly desirable; their use in the preparation of inner tubes, tyres, thread, hose, dipped goods, mechanical goods, latex &c. is mentioned.
Patent GB-1215264-A (GB)
Title: Metal extrusion process
Inventor: WASSEN JOHANN
IPC: B21C23/32
Filed: 1969-05-01
Abstract: 1,215,264. Extruding. STAHLUND ROHRENWERK REISHOLZ G.m.b.H. 1 May, 1969, No. 22276/69. Heading B3P. [Also in Division C5]  In a metal extrusion process a dummy disc is placed behind the slug so that the whole slug can be extruded leaving only the residue 4<SP>1</SP> of the disc in the extrusion die 2 and a second slug 6 with a further dummy disc 7 extruded using the residue as a lubricant. The dummy disc is formed of either a compressed sintered mixture of 40 to 60% powdered glass and one or more metal salts, such as sodium chloride, potassium chloride, sodium nitrate, potassium nitrate or barium chloride or a compressed mass of calcined mica.
Patent GB-1369095-A (GB)
Title: Method and device for the application of a sealing weld to a container of foamed plastics and a container provided with such a sealing weld
IPC: B29C65/18
Filed: 1972-05-12
Abstract: 1369095 Seaming non-metallic sheet material STICHTING ONTWIKKELING VERPAKKINGSMETHODEN IN DE ZUIVELINDUSTRIE 12 May 1972 [13 May 1971] 22299/72 Heading B5K Parts of a container of foamed plastics material are heat sealed by compressing portions of these parts at a temperature above the softening point of the foamed plastics material without the foamy character of the material being lost and compressing other portions of these parts at a temperature above the softening point of the material so that the foamy character of the material is substantially decreased and a weld 5 is formed. As shown in Fig. 1, four foamed plastics sheets 1, 2, 3, 4 are formed with a weld at a constricted part 5 with a protruding end part 6 which has refoamed after welding by heated jaws 7, 8, Fig. 2. Preferably, the part 6 is of a size equal to or not much greater than the sum of the original sheet thicknesses. The jaws 7, 8 are heated to approximately 20 C. above the softening point of the plastics material. The jaw 8 has a ridge. 9, having rounded corners, to form the weld 5. The part 6 is formed between flat surfaces 10, 11. The sheets are compressed to approximately 20% of their original thickness between the surfaces 10, 11 and to less than 2% between the ridge 9 and the surface 11 at a surface pressure greater than 200 kg. per cm.<SP>2</SP> for a period of from 2 to 10 seconds. In a modification (not shown), each jaw is provided with a ridge.  If the plastics material is polystyrene foam with closed cells and a thickness of 2À5 mm., it is compressed for 4 seconds at a temperature in the range of 127C.  3C. If cross-linked soft polyethylene foam having closed cells and a thickness of 2À5 mm. is used, it is compressed for 4 seconds at a temperature in the range of 127 C.  1 C. If cross-linked polypropylene foam having closed cells and a thickness of 2 mm. is used, it is compressed for 8 seconds at a temperature in the range of 183 C.  1 C. The invention is applicable to forming the upper closure of a container which has to be easily tearable open, e.g. a milk container, Figs. 3 and 4 (both not shown).
Patent GB-1505868-A (GB)
Title: I-alkyl-i-cyanohydrazines and their use for the production of 1,2,4-triazole derivatives
IPC: C07C255/66
Filed: 1975-05-22
Abstract: 1505868 1 - Alkyl - 1 - cyanohydrazines CIBA-GEIGY AG 22 May 1975 [13 June 1974 6 Dec 1974] 22346/75 Heading C2C Novel 1-alkyl-1-cyanohydrazines, in which the alkyl group is a C 1-5  straight or branchedchain alkyl, are prepared by reacting an alkylhydrazine of general formula where R is C 1-5  alkyl, or a salt thereof with cyanogen chloride in the presence of an acid binding agent. Amongst the examples 1-isopropyl-1 - cyanohydrazine, 1 - sec. - butyl - 1- cyanohydrazine and 1-methyl-1-cyanohydrazine are prepared. 1 - Alkyl - 3 - hydroxy - 5 - chloro - 1,2,4 - triazloes are prepared from the novel 1 - alkyl- 1-cyanohydrazine by reacting with phosgene.
Patent GB-1107971-A (GB)
Title: Apparatus for producing a copy of an original
IPC: G03G15/28
Filed: 1965-05-26
Abstract: 1,107,971. Electro-photographic apparatus. SAVIN BUSINESS MACHINES CORPORATION. May 26, 1965 [June 30, 1964], No. 22375/65. Heading G2H. An electro-photographic apparatus is fed with photo-conductively coated paper 38 cut into lengths, at a station 46, corresponding to the length of an original fed through an opening 164. The leading end of the original actuates a feeler 312, Fig. 4, thereby actuating a switch 314 to cause energization of a solenoid (328) Fig. 7 (not shown) which rocks a lever (334) to close a switch (844) Fig. 30 (not shown) which energizes a winding (848) to close a switch (850) which energizes exposure lamps (858, 860) and corona wires (82). The leading edge of an original then actuates feeler 315, Fig. 4, which actuates a switch 864. The trailing edge of the original subsequently passes feeler 312, thereby interrupting the circuit to solenoid (328) Fig. 7 (not shown). An arm (380) is then permitted to actuate cutter (360) Fig. 6 (not shown) to cut an appropriate length from the paper 38 Fig. 1. When the trailing end of an original passes feeler 315, Fig. 4, winding (848) Fig. 30 (not shown) is de-energized and the machine is set for the next copying cycle. The paper 38, Fig. 1, is unwound from a roll by a feed roller 58 clutched to a chain driven shaft 60 under the control of a solenoid (328) Fig. 7  (not shown). Corona wire 82, Fig. 1, charges the paper 38 before exposure to an image of an original illuminated by lamp 196 at exposure window 186. An optical system 302 has a mirror 306 which reflects an image upwards to window 92. The latent electro-static image formed is developed by a roller 102 with liquid developer or powdered toner e. g. applied by magnetic brush apparatus Figs. 10 to 16 (not shown). A photocell (762) Figs. 28 and 29 (not shown) controls the replenishment of toner by sensing the opacity of the liquid developer. The developed image is fixed by a heater 128, Fig. 1 Multiple copies of an original may be made by recirculating an original through the path past window 186 by positioning a baffle 216, Fig.4, under the control of a repeat copy mechanism. The repeat copy mechanism has a shaft (642) Fig. 30 (not shown) a stepping motor (670) and conductive segments (696) contacted by a brush 500.
Patent GB-1059514-A (GB)
Title: Aqueous solutions of erythromycin
IPC: C07H17/08
Filed: 1964-05-29
Abstract: An aqueous solution for adding to poultry drinking water comprises 250 to 500 mg. of erythromycin phosphate per 30 ml. water and a water-soluble excipient, e.g. sodium citrate and sugar.  The solution is added to poultry drinking water to counteract pleuro-pneumonia infections in poultry.
Patent GB-1302987-A (GB)
IPC: H01L23/485
Filed: 1971-04-19
Abstract: 1302987 Semiconductor devices TOYO ELECTRONICS INDUSTRY CORP 19 April 1971 [26 Feb 1970 28 Feb 1970] 22599/71 Heading H1K A semiconductor device comprising a substrate 25 and an epitaxial layer 12 in which are formed active regions 13, 14, has an electrode 21 which is connected to the substrate 25 at one end and extends round the lateral side of the device body to the face of the device from which it is insulated by a layer 15 of SiO 2 . The other electrodes 16, 17 of the device extend from the face round the other lateral sides of the device but are insulated from the body except where they contact the active regions with which they are associated. The electrodes may be of copper, nickel, silver or gold or an overlay of such a metal may be applied to them, Fig. 4, not shown, mutual contact between the electrodes through the overlay being prevented by an insulating layer. The device may be mounted on terminal members in a mounting plate with its electrodes contacting the terminal members and those positions of the electrodes extending on the sides of the device being bonded to the terminal members by soldering.
Patent GB-766710-A (GB)
Title: Improvements in or relating to a process for separating thiophenols from tar acids
IPC: C07C37/68
Filed: 1954-08-04
Abstract: Thiophenols and disulphides are separated from tar acids substantially free from neutral oils in a continuous, double solvent, counter-current extraction process by feeding the tar acids to an extraction zone, feeding an aqueous methanol solution containing 40-90 per cent of methanol by weight to one end of the zone and a paraffinic naphtha fraction boiling between 60 DEG  and 130 DEG  C. and with a density of less than 0.8 to the other end of the zone, passing the two solvents countercurrently through the zone, recovering the aqueous methanol phase containing tar acids, and the paraffinic naphtha phase containing thiophenols and disulphides.  The paraffinic naphtha specified is a hexane fraction from petroleum naphtha.  Tar acids mentioned are fractions boiling between 160 DEG and 300 DEG  C., containing from 0.5 to 25 per cent by weight of thiophenols, which may be obtained from a petroleum distillate by caustic extraction.  In a preferred embodiment, the extraction zone is a vertical extraction column operated at between 15 DEG  and 50 DEG  C., the tar acids being introduced at a point above the middle of the column, aqueous methanol being fed to the top and naphtha to the bottom of the column, density differences producing the countercurrent flow.  Naphtha extract withdrawn from the top of the column and containing the sulphur compounds is distilled to recover naphtha which is recycled. Methanolic extract withdrawn from the bottom of the column is distilled to remove methanol, the purified tar acid in the residue being separated from the aqueous phase which is then recombined with the distilled methanol and recycled.  The column feed rate is regulated so that between 0.5 and 5 volumes each of aqueous methanol and naphtha are fed in per volume of tar acid. Part of the naphtha solvent may be mixed with the tar acid feedstock if the latter has a high viscosity.  The column may be operated so that either naphtha or aqueous methanol is the continuous phase. Examples illustrate the extraction of a commercial tar acid and of a made-up mixture of tar acid and thio-cresol with 70 per cent methanol and hexane in a centre feed column.  U.S.A. Specification 2,666,796 is referred to.
Patent GB-695785-A (GB)
Title: Improvements in apparatus for bowl and green testing
IPC: G01M99/00
Filed: 1949-09-02
Abstract: 695,785. Projectors for bowls. WOOLF, C. A. Sept. 20, 1950. [Sept. 2, 1949] No. 22740/49. Class 132 (ii). A projector for bowls comprises a portable, height-adjustable stand, a vertically-swingable arm mounted on the stand, and a bowl-carrying cradle secured to the swingable arm, the arm being vertically adjustable so that the green level at the lowest point of the swing of the arm is a tangent to the bottom of the mouth of the cradle. The stand comprises a top plate 21 carried on three legs 22 having feet 28 and pivotted to the top so that they can be swung in and clamped by a quadrant plate 29 to adjust the height of the stand. Rearward extensions 26 connected to the feet by members 26a are connected by a detachable curved bar 27 along which slides a block 30 carrying a chain 33 temporarily connected to the swingable arm 20 by a part 34 having a releasable catch. The arm 20 is mounted rotatably in the top 21 and its point of connection thereto can be varied in height by a screwed part 41. The angle of projection of the bowl is indicated by a scale on the top 21 and the amplitude of retraction of the arm 20 is indicated by a pointer 20b co-operating with a fixed scale 20a. The arm 20 is mounted on an axle 40 in lugs 39. A striking plate 23 having a cam surface 24 is fixed to the screwed part 41. When the arm 20 is released, it swings downwards and, at the bottom of its travel, a roller 43 rides on the cam 24 to pivot a lever 42 on the top of the arm 20, the other end of the lever acting to raise a rod 44 which, through an oblique link 45, moves a sliding plate 46 to the left (Fig. 11) to disengage a locking slide from a notch 48a in a rod 44a. This action allows a spring 50 to lift the rod 44a which is connected to the gripping fingers 52, 53 of the bowl cradle 25 which is thus opened. The rod 44a is adjustable in length by a screwed connection 49. The fingers 53 of the cradle are connected by a link 54 to a collar 56 the height of which on the arm 20 can be adjusted by a set screw 57. Spirit levels may be mounted on the arm 20 and on the plate 21. A timing device may be provided to time the run of the bowl or this may be observed from the pendulum motion of the arm 20. The bowl's leaving the cradle when the ground is tangential to the lowest point of the bowl is assured by the three height adjustments namely the inclination of the legs 22, the setting of the adjusting member 41 and the adjustment of the collar 56.
Patent GB-1144493-A (GB)
Title: Improvements relating to the selective hydrogenation of diolefins
Inventor: METCALFE CHRISTOPHER JOHN LEON
IPC: B01J23/70
Filed: 1965-05-31
Abstract: 1,144,493. Selective hydrogenation of dienes. BRITISH PETROLEUM CO. Ltd. 18 May, 1966 [31 May, 1965], No. 22975/65. Heading C5E. Diolefins are selectively hydrogenated in the presence of mono-olefins by contact with hydrogen at a temperature below 250‹ C. in the presence of a catalyst comprising a Group II, III or IV refractory inorganic oxide (e.g. Al 2 O 3 , MgO, or SiO 2 ) and nickel as the hydrogenating component, said component having been added to the oxide by an ion-exchange technique and not having been reduced to elemental nickel prior to the hydrogenation. A suitable ion-exchange technique is described in Specification 1,144,494. The catalyst is preferably pretreated with a stream of nitrogen or hydrogen at a temperature of 100‹ C. upwards but below 250‹ C. The selective hydrogenation of isoprene is illustrated, and the process may be used to reduce the diene content of by-product gasolines obtained in cracking processes.
Patent GB-859155-A (GB)
Title: A process for enriching phosphate minerals
IPC: B03D1/002
Filed: 1959-07-03
Abstract: In a process for the concentration of a calcium carbonate-containing phosphate mineral by the froth flotation separation of calcium carbonate therefrom, the floatation is carried out in an aqueous medium containing an anionic surface-active agent and a water-soluble alkali metal (including ammonium), phosphate.  In practice, the mineral is ground to a particle size less than 0.2 mm. and floated in a medium (water or sea-water), having a pH of 6-7.  The surface-active agent may be an aliphatic fatty acid, e.g. oleic, stearic or palmitic acid, or an alkali metal salt thereof, and the water-soluble phosphate may be sodium triphosphate, potassium monophosphate, ammonium monophosphate or disodium pyrophosphate.
Patent GB-666980-A (GB)
Title: Improvements in and relating to electric time delay circuits
IPC: H03K17/288
Filed: 1948-09-01
Abstract: 666,980. Valve relay circuits. BRITISH THOMSON-HOUSTON CO. Ltd. (General Electric Co.). Sept. 1, 1948, No. 23065/49. Class 40 (vi). The Figure shows a circuit for connecting an A.C. supply 12 to a load 13 after a predetermined time interval and, if the supply 12 fails and then re-appears, for disconnecting the load and then re-connecting it after a period dependent upon the duration of the supply failure. Capacitors 16, 17 are charged from the A.C. supply 12 via potentiometer 13<SP>1</SP> and rectifiers 18, 19, so that the anode of valve 20 is at a positive potential with respect to its cathode. The current through valve 20 thus slowly increases as capacitor 22 charges via resistor 24 and rectifier 23 from the voltage drop across cathode resistor 21. The negative feed-back effect of resistor 21 gives the circuit an effective time constant of considerable length so that the cathode potential of valve 20 and thus the grid potential of valve 26 slowly rise until after a period determined by the setting of resistor 24 valve 26 conducts and relay 27 operates. Operation of relay 27 closes contacts A, B which connect the load 13 to the A-C supply 12 and contact C is also closed which shorts the grid-cathode circuit of valve 26 so that this valve now loses control of the circuit. If the A.C. supply 12 fails, capacitors 16, 17 discharge through resistors 34, 33 and .capacitor 22 discharges through resistors 32, 21. The A.C. supply is thus at once removed from valve 26 relay 27 is de-energized thus disconnecting the load 13 from the supply 12. If now, the A.C. supply 12 re-appears, after a period dependent on the amount to which capacitor 22 has discharged which is predetermined by the setting of resistor 32 valve 26 is rendered conducting again and the load 13 is re-connected to supply 12. The circuit may be used for connecting the anode supply to mercury vapour valves after the cathodes have been heated for a predetermined period. By reversing the position of components 22, 24 in the circuit, Fig. 3 (not shown), the voltage across resistor 21 changes as though it was the voltage developed across a capacitor charged through a series resistor instead of that of an inductor charged through a resistor as in the circuit described. In a further modification capacitor 22 is replaced by an inductor.
Patent GB-1440603-A (GB)
Title: Alkyl phosphonates
IPC: C07D307/935
Filed: 1973-05-30
Abstract: 1440603 Alkyl phosphonates PFIZER Inc 30 May 1973 [2 June 1972 30 April 1973] 23067/75 Divided out of 1440601 Heading C2P Novel alkyl phosphonates of the formula CH 3 (CH2) m O(CH 2 ) n (CH 2 ) 2 C(O)CH 2 P(O)O(CH 3 ) 2  wherein m is 0, 1, 2, 3 or 4 and n is 0, 1 or 2, are prepared by reacting dimethyl methylphosphonate with alkyl esters of the formula wherein R is C 1-5  alkyl.