baber/WOPTO huggingface dataset:
Patent GB-574364-A (GB)
Title: Improvements in or relating to rotary pumps and engines of the gear-wheel type
IPC: F04C2/08
Filed: 1943-06-09
Abstract: 574,364. Rotary pumps. BELL, F. R., JUDSON, C. A., and HAWORTH, L. June 9, 1943, No. 9294. Drawings to Specification. [Class 110 (ii)] The end faces of the teeth of a gear-wheel pump are inclined so as to present slightly tapering spaces open to the direction of rotation between them and the casing walls. The faces may be chamfered from both tooth faces when the pump is reversible and the faces may be rounded instead of chamfered. In a Roots' blower radial ridges formed on the end faces of the rotor are similarly shaped. The shaft of the gear-wheel pump rotor is only slightly less than the root diameter of the teeth.
Patent GB-1461805-A (GB)
Title: Impact tool
IPC: B21D1/06
Filed: 1974-03-01
Abstract: 1461805 Metal dressing tool H ZENGERER 1 March 1974 [5 March 1973] 9309/74 Heading B4C A hammer head or bit for a pneumatic hammer comprises a tool head having jaws 7 and a stem 10 slidable inside a tool carrier 1, the jaws being urged apart by springs 18, 21 and outwardly of the tool carrier against a stop 24 by a spring 23 the tool bit, heads and inside of the tool carrier being provided with cooperating inclined or conical surface so that on impact the jaws move towards each other against the action of springs 18, 21. The tool carrier may have a hole to take a hammer shaft or may be shaped to be held in the jaws of a pneumatic tool. The head 7 may comprise two, three or four parts. As shown in Fig. 10 the spring pressure may be adjusted by means of an eccentric rotatable by a knurled ring 33 and lockable in certain positions by a spring loaded ball 36. Two springs 23, 23<SP>1</SP> of opposite helicity may be provided, the second one coming into operation at a later stage.
Patent GB-991587-A (GB)
Title: Soil treatment method and compositions therefor
Inventor: ROSE FRANCIS LESLIE
IPC: C05G3/90
Filed: 1963-03-08
Abstract: Soil is treated with a substituted quinoline or quinazoline containing a chlorine or trichloromethyl group and a cyano, carboxy, amide, ester, aldehyde, keto, nitro, trifluoromethyl, or ring nitrogen group, e.g. 2-trichloromethyl- 4 - carboxy - 6 - nitro -, 2 - trichloromethyl - 5 - nitro - 8 - aminocarbonyl -, 2 - trichloromethyl- 4 - chloro - 6 - nitro -, or 2 - trichlromethyl- 7 - nitro - quinoline or 2 - trichloro - methyl- 4 - piperidino - 6 - nitro -, 2 - trichloromethyl- 4 - morpholino - 6 - nitro -, or 2 - trichloromethyl - 4 - amino - 6 - nitro - quinazoline.  Th method prevents nitrification of ammonium or amide compounds present in the soil.  A composition may be employed which also contains a plant nutrient, e.g. basic slag, monoammonium phosphate, diammonium phosphate, ordinary or triple superphosphate, potassium chloride, sulphate or nitrate, peat, spent hops, malt, ammonium sulphate or nitrate, urea, or oxamide.  A composition may also contain a solid diluent, e.g. chalk, talc, kieselguhr, bentonite, china clay, slate dust, gypsum, anhydrite, or limestone or a liquid diluent, e.g. water or acetone.  The anti-nitrification agent may be applied as powder, pellets, granules, solution, suspension, or dispersion in a proportion of 0.5-95% in a solid composition, 0.1-25% in an organic solvent solution, and 0.0001-2.5% in an aqueous dispersion. Specifications 857,932 and 874,980 are referred to.
Patent GB-841632-A (GB)
Title: Method of manufacturing and treating a thin flat band of parallel artificial filaments
Inventor: TOMONARI TSUKUMO
IPC: D01D10/04
Filed: 1957-03-21
Abstract: A thin flat band of parallel filaments is made by extruding a number of filaments from a spinneret and passing them into a liquid which flows through a chamber, the cross-sectional area of which falls progressively from the entry end, where it is of circular cross-section, to a zone of rectangular cross-section, which then increases progressively in one dimension and decreases in the other dimension along said zone to provide a slot-like orifice from which the filaments emerge, the arrangement being such that the filaments will be uniformly distributed in the different portions by the flow currents thereby imparted to the liquid; the filaments are then removed from the liquid as a thin flat band of one or more layers of filaments, and the band is subjected to any necessary after-treatment, substantially without changing its width. Artificial filaments made by wet- or melt-spinning may be treated but the process is particularly applicable to the wet-spinning of polyvinyl alcohol filaments, in which event the liquid into which the filaments are passed may be a coagulating solution.  For after-treatment, e.g. stretching, acetalisation, washing, oiling or drying, a number of bands made in this way may be arranged in parallel, side by side, or may be superimposed.
Patent GB-845245-A (GB)
Title: Improvements in or relating to the casting of steel using shell moulds and cores
Inventor: BAILEY DENNIS FREDERICK
IPC: B22C3/00
Filed: 1958-03-24
Abstract: 845,245. Mould materials. BAKELITE Ltd. March 5, 1959 [March 24, 1958], No. 9339/58. Class 83 (1). A method of casting steel by shell moulding consists in including in the mould a deoxidant, such as aluminium, boron, manganese or titanium. The deoxidant may be introduced into a sand-resin mix, or into a resin coating on the sand, or may be mixed with a resin-coated sand. Alternatively, a thin deoxidant-containing shell may be first formed on a pattern, and a coarse sand-resin layer then added. In casting a wheel hub, the face of the core may be composed of 50 parts by weight of aluminium powder, 50 of silica flour, and 12 of phenolic thermosetting resin. In the prior art, it is stated that mould surfaces have been improved by coatings of talc or solid materials suspended in water or naphtha.
Patent GB-1014714-A (GB)
Title: Improvements relating to suction cleaners
IPC: A47L5/28
Filed: 1964-03-05
Abstract: 1,014,714. Suction cleaners. HOOVER Ltd. March 5, 1964 [March 8, 1963], No. 9417/64. Heading A4F. In a suction cleaner including a nozzle body 10, Fig. 1, from which extends upwardly a housing 14 comprising a filter chamber 28, Fig. 5, and a motor-fan chamber 22, a cover 29 providing access to the filter 58 is hinged to a supporting member 40 forming the lower part of the rear wall of the filter chamber 28. The member 40 also assists in supporting a secondary filter 74, and is provided with projecting fingers 72, which in association with fingers 73 on the front wall 17 of the chamber 28 prevent access of the user's fingers through the air inlet 38 of the motor-fan chamber 22 into contact with parts of the motor.
Patent GB-694240-A (GB)
Title: Improvements relating to turbines
Inventor: HARKER WILLIAM EDMUND
IPC: F01D5/18
Filed: 1950-04-18
Abstract: 694,240. Turbine blades. ROLLS-ROYCE. Ltd. April 9, 1951 [April 18, 1950], No. 9444/50. Class 110(iii) In an axial-flow turbine blade having a root portion 11a which engages in an axially disposed slot in the periphery of a rotor disc, the bottom of the root portion has a, cutaway portion 11b which extends from one of the axially-directed faces 11c partly across the width of the blade root, and cooling ducts 15 extend from the cutaway portion to the interior of the profile portion. The root portion 11a has a tapering radial projection 14 and a profile portion 13 of sheet metal is bonded thereto. The bottom of the root portion which is not cut away is either shaped so as to close the end of channel 12 between the cut-away portion and the bottom of the blade-retaining slot, or is slotted to receive a blanking piece 17 which is retained in position by a locking tab 18. Endwise movement of the blade is prevented by a cross-piece 20 bonded to the root portion, and the locking tab 18. Specification 694,241 is referred to.
Patent GB-1535585-A (GB)
Title: 1:2-cobalt-complex azo dyestuffs their manufacture and us
IPC: C09B45/20
Filed: 1976-03-10
Abstract: 1535585 1:2-Cobalt-complex azo dyestuffs HOECHST AG 10 March 1976 [12 March 1975] 09532/76 Heading C4P The invention comprises water-soluble 1:2- cobalt complexes of monoazo dyestuffs of the formula wherein R 1  is chlorine or nitro; R 2  is methyl, ethyl, methoxy or ethoxy, and R 3  is methoxy or ethoxy. They may be prepared by coupling a diazo compound of 4-chloro- or 4-nitro-2-aminophenol with a compound of formula and metallizing the resulting monoazo dyestuff with a cobalt yielding agent optionally in the presence of an acid-binding agent. The complexes impart golden-yellow shades to fibres of polyurethane, natural polyamides, e.g. wool and silk, synthetic polyamides, and mixtures thereof with other hydrophobic fibres, e.g. a mixture of wool and polyester fibres.
Patent GB-515301-A (GB)
Title: Improvements in or relating to photo electric devices
IPC: H01J31/50
Filed: 1938-03-29
Abstract: 515,301. Cathode-ray tubes ; image dissectors ; electron multipliers. LUBSZYNSKI, H. G., and KLATZOW, L. March 29, 1938, No. 9557. [Class 39 (i)] A composite electron beam corresponding to an optical image is obtained by projecting the image on to a layer of a material the electrical properties of which vary with the illumination, such as photo-conductive or photo-voltaic materials, the layer being so thin that transverse conduction is negligible, and deriving the electron beam from the surface of this layer. In the arrangement shown in Fig. 1, a mica support 2 carries a transparent metal layer 1 on the surface of which is formed a photo-conductive layer 3. On the surface of the layer 3 is a caesiated mosaic 4 of ordinary type. The mosaic 4 is illuminated and emission is checked by a grid electrode 5 about 3 volts negative to it. An image to be intensified is projected on to the layer 3 and disturbs the equilibrium, producing a composite beam by emission from the mosaic. This beam is accelerated by an electrode 6 and focussed by a coil 7 on to a fluorescent screen 8. A second photo conductive electrode and emission mosaic may be formed on the back of the screen 8 so as to produce a second electron stream corresponding to the. fluorescent image. The device may also be used as an image dissector, or the screen 8 may be a mosaic scanned by a cathode ray to produce image signals. The surface of the layer 3 opposite to that on which the image falls is rendered opaque by filling up the spaces between the particles of the mosaic with insulating material such as magnesium oxide, or the light illuminating the mosaic may be of such wave length as not to effect the conductivity of the layer 3. Alternatively the mosaic may be of thermionic instead of photo electric material, and be heated to 300-400C., or the mosaic may be dispensed with and the layer 3 flooded with an electron beam, the composite beam being produced by the secondary electrons. An arrangement using photo-voltaic instead of photo-conductive materials is also described. Specifications 462,550, 480,996 and 489,428 are referred to.
Patent GB-580428-A (GB)
Title: Improvements in or relating to printing presses
IPC: B41F5/08
Filed: 1944-05-18
Abstract: 580,428. Printing - machines. GOSS PRINTING PRESS CO., Ltd. May 18, 1944, No. 9611. Convention date, May 19, 1943. [Class 100 (ii)] A multicolour printing-press is formed of line of perfecting units each including a pair of printing- couples certain of which are reversible and a plurality of additional reversible couples of the same width disposed above said line of units, so that a web may be passed through one or more of the units and one or more of the additional units in either direction to enable different combinations of colours to be obtained without the use of turning bars. The machine shown in Fig. 1 comprises a set of four perfecting units 21, 22, 23, 24 all in line and at the same floor level arranged on one side of a folder 20 and three similar sets 25, 26, 27 arranged on the other side of the folder. Above the first set of perfecting units are two printing couples 60, 61, and above the second set are two similar couples 62, 63, all the couples being in line at the same floor level, and each couple is reversible as is also one couple of each perfecting unit. The machine is of great flexibility and is capable without the use of turning bars of printing four webs or five webs with different combinations of colour arrangements. Thus when five webs are printed the separate webs may some have three colours on one side and two on the other, or four on one side and one on the other, the associated webs having combinations of less numbers of colours. As shown in Figs. 1 and 2, the web 80 is printed by the units 25, 26 and couple 62 with three colours on one side and two on the other, and web 81 with one colour on one side and two on the other by one unit 27 and one couple 63. Other webs 82, 83, 84 are printed by the units 21, 22, 23 and couples 60, 61 to produce the combination of colours indicated in the diagram Fig. 2. Another variation is indicated in the diagram Fig 10, in which a web 90 is printed on one side in four and the other side in three colours by passage through one couple of the unit 27 and through the couples 62, 63, and all the couples of the units 25, 26. The other associated webs 91, 92, 93 receive impressions as indicated on Fig. 10. Many other variations are possible.
Patent GB-331216-A (GB)
Title: Process for the manufacture of tanning agents
IPC: C14C3/18
Filed: 1929-03-25
Abstract: 331,216. Carpmael, A., (I. G.À Farbenindustrie Akt.-Ges.). March 25, 1929. Phenol - aldehyde condensation products.- Water-soluble, tanning agents are prepared by condensing 3 mols. of resorcinol or pyrogallol with 1-1.5 mols. of benzaldehyde or a substitution product thereof in an aqueous medium in the presence of a small amount of acid, the reaction being interrupted by neutralizing the acid when little or none of the phenol can be detected; the progress of the reaction may be followed by noting the colour given by very dilute test portions with ferric chloride. The tanning properties of the products vary with the stage of condensa. tion. When substituted benzaldehydes are used, the reaction mixture may deposit sparingly soluble triphenylmethane derivatives, which should be removed before further working up. The products can be used to increase the tanning action of other synthetic or vegetable tanning substances. According to the examples (1) a mixture of resorcinol, benzaldehyde, and water acidified with hydrochloric acid is heated to 30‹ C., the temperature then rising to 40‹ C.; after 4 hours, the mixture is neutralized, concentrated in vacuo, and freed from aldehyde by treatment with bisulphite; (2) the reaction mixture of example (1) is left to stand at 20-25‹ C. for 28 hours; it is then neutralized, freed from aldehyde by steam-distillation, and concentrated in vacuo; À (3) a mixture of resorcinol, salicyl aldehyde, and water acidified with sulphuric acid is maintained at 20-24‹ C. for 26 hours, and then worked up as in example (2); (4) a mixture of resorcinol, ochlorobenzaldehyde, and water acidified with hydrochloric acid is stirred for 2 hours at 20-24‹ C. and then neutralized, filtered, and concentrated; (5) a mixture of pyrogallol, benzaldehyde, and water acidified with hydrochloric acid is stirred for 20 hours, neutralized, steam-distilled, and concentrated. Specification 189,190 is referred to.
Patent GB-863977-A (GB)
Title: A compensator for a control cable
IPC: F16C1/22
Filed: 1959-03-19
Abstract: 863,977. Temperature compensators for control cables. PACIFIC SCIENTIFIC CO. March 19, 1959 [April 2, 1958], No. 9617/59. Class 78 (2). A spring compensator (Fig. 1c) is included in cable 11 which transmits movement from hand control lever 6 to (e.g.) door 24 to open the latter, so that tension is maintained in the cable irrespective of temperature change. Compensator 1 (Fig. 2).-This has a piston 8 moving within cylinder 2 and a spring 13, the spring being positioned between and urging apart the piston 8 and canting washers 16. The said washers are free upon piston-rod 9, have tongues 17 projecting freely into aperture 18 of the casing, and abut spacer member 19 slidable on piston-rod 9. Alternatively, the washers may be pivoted to the casing. Operation.-In the normal position of lever 6 (see Fig. 1c) spacer member 19 abuts a fixture 10 so that, because washers 16 are thus supported, piston rod 9 is freely displaceable against spring 13 if the temperature changes. However, when lever is operated clockwise to open door 24, casing 2 is displaced leftwards. As casing 2 moves away from fixture 10, the washers 16, being left without support, cant or pivot to grip piston-rod 2 so that the control movement is transmitted crisply.
Patent GB-688617-A (GB)
Title: Improvements in low alloy steels
IPC: C22C38/40
Filed: 1949-04-08
Abstract: A weldable steel of high tensile strength consists of 0.14-0.19 per cent C, 0.6-0.8 per cent Si, 0.8-1.5 per cent Mn, 0.8-1.8 per cent Ni, 0.5-0.9 per cent Cr, the remainder being iron.  One or more of up to 0.3 per cent Mo, up to 0.25 per cent V, up to 0.8 per cent Cu may also be present.  The Specification as open to inspection under Sect. 91, comprises also a weldable steel consisting of 0.14-0.26 per cent C, 0.5-1.5 per cent Si, 0.8-1.5 per cent Mn, 0.8-1.8 per cent Ni, 0.5-1.5 per cent Cr and optionally up to 0.3 per cent Mo and/or up to 0.25 per cent V and/or up to 0.8 per cent Cu.  This subject-matter does not appear in the Specification as accepted.
Patent GB-593587-A (GB)
Title: Improvements in or relating to electrical apparatus for energising a load circuit for a timed period
IPC: B23K11/24
Filed: 1945-04-18
Abstract: 593,587. Supply systems for consumption apparatus. IGRANIC ELECTRIC CO., Ltd., and FIELD, J. A. April 18, 1945, No. 9690. [Class 38 (iv)] In an electrical system for energizing a load such as a resistance welding device for a period dependent upon the time taken to charge a condenser, the timed period is automatically prolonged or shortened upon a decrease or increase, respectively, in the voltage supplying the load, which is energized 'upon closure of contacts RC1 associated with a relay coil Rw. The relay is energized to initiate the timed period, upon the closure of starting switch s, during the charging period of condensers C1 and C2 connected across the output of a rectifier t energized from the A.C. supply o to which the load is also connected. Normally open relay contacts RC2 close to short-circuit switch s and maintain the charge on condensers C1 and C2, normally closed contacts RC4 open to remove the short-circuit on condenser C3 and normally open contacts RC3 close to complete a charging circuit for this condenser through the resistance network r2, r6, r5, r1 and r7, which condenser builds up a biassing voltage for the normally conducting valve v through which the circuit of the relay coil Rw is maintained subsequent to its initial energization. When the valve becomes less conducting, due to sufficient " build-up " on the grid, contacts RC1, RC2, RC3 and RC4 drop out, condensers C1 and C2 discharge through resistance r3 and relay coil Rw and condenser C3 discharges over contacts RC4. The combination of neon tube n and resistance r4 maintain voltage on the screen of valve v almost constant within a supply voltage range of Œ 10 per cent so that whilst the anode current of the valve is almost independent of anode voltage, this current varies inversely as the control grid voltage. The timed period is variable between a minimum and a maximum by variable rheostats r1 and r2 and resistance r3 and winding Rw are of such a value that condensers C1, C2 are discharged in about <1>/10 second.
Patent GB-198653-A (GB)
Title: Improvements in cushion connections for vehicle springs
IPC: B60G11/42
Filed: 1923-04-09
Abstract: 198,653. International Motor Co., (Assignees of Masury, A. F., and Leipert, A. H.). June 1, 1922, [Convention date]. India-rubber and like springs; arrangements of springs with mountings complete in themselves.-The ends of a vehicle spring b are supported by blocks c, d of non-metallic yielding material, the front end of the spring being held relatively fixed with respect to the vehicle frame by the blocks c in a casing c<1>, while the block d is so constructed and mounted in a casing d<1> as to allow relatively free elongation of the spring to prevent undue stressing of the yielding material and a snap action of the spring as it passes a straight line position. To this end, the block d comprises considerable masses of material d<2>, d<3>, d<5> above, below, and to the rear of the spring end, the parts d<2>, d<5> and d<3>, d<5> being connected by relatively thin, flexible sections d'. The parts d<2>, d<3> are mounted in seats d<4> in the ca.sing d<1> and act on the spring through metal seats e, and a metal seat e<1>, shown integral with the seats e, is secured to the spring for engagement with the part d<5>.
Patent GB-200180-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B15/00
Filed: 1922-04-05
Abstract: 200,180. British United Shoe Machinery Co., Ltd., and Morley, D. W. April 5, 1922. Chain-stitching machines; needles, driving; presser-feet.-In a barbed-needle shoe-sole sewing-machine of the type described in Specifications 163,456 and 163,967, the movement of the shoe-entering work-support to caliper the work varies both the upper and lower limits of the needle-stroke. The needle-bar operating bellcrank lever 1, 2, Fig. 1, is actuated through a link 3 and a connecting-rod 4, universally jointed at both ends, from the main shaft crank 5. The needle-bar moves at its slowest rate when at the bottom of its stroke since the crank 5 is then in its uppermost position, thus allowing the use of a looper rotating twice for each needle reciprocation instead of three times as in the machines of the above-mentioned Specifications. The connection 4<1> of the link 3 and the rod 4 is connected by a link 7 to links 8, 10, the other ends of which are pivoted to the work-support-controlled lever 9 and a frame-pivot 12 respectively. When the lever 9 is raised owing to increased thickness of the work, the lower limit of the needle-stroke is lowered by substantially the same amount as the work-thickness has increased while the upper limit is raised to a lesser degree. Notwithstanding the automatic variation of the needle stroke, the needle is at all times under positive control. The connections are so arranged that the workpiercing descent of the needle causes an opposed thrust of the support on the work. In a modification, the universal connection between the cranks and the rod 4 is avoided, the mechanism lying across the machine instead of lengthwise thereof. The needle-actuating bell-crank lever 1, 2, Fig. 3, is connected by links 14, 15 to a bellcrank lever 16, 19 pivoted to the frame. The lever-arm 19 is connected by a link 20 to the crank 21. Universally connected to the connecting-point 23 of the links 14, 15 is a link 24 universally connected at 25 to the work-support-controlled lever, the pivot 25 being lowered as the work-thickness increases. The presser-foot 26 has a tongue-and-groove connecton with the bar 27, so arranged that on adjusting the foot towards the sewing-point when the feed is shortened, the presser-foot is raised and consequently the length of loop drawn above the work by the needle is also shortened to the extent required by the alteration in feed.