baber/WOPTO huggingface dataset:
Patent GB-726815-A (GB)
Title: Improvements in or relating to the production of ethylene cyanhydrin
Filed: 1952-11-18
Abstract: Ethylene cyanhydrin is produced by reacting a gas mixture, containing ethylene oxide, obtained by the oxidation of ethylene with hydrogen cyanide, in the presence of water or an aqueous solution of ethylene cyanhydrin containing an amount of an alkaline catalyst to give a pH within the range of 9-12.  The hydrogen cyanide may be used as a mixture with inert gases, e.g. the mixture obtained by decomposition of formamide, or by the reaction between carbon monoxide and ammonia or between methane and ammonia.  The reaction may be carried out at a temperature in the range 20-70 DEG  C.  In an example a gaseous mixture containing ethylene oxide (obtained by the catalytic oxidation of ethylene) and a hydrogen cyanide-containing gas (obtained by the catalytic splitting of formamide) are passed through a series of three towers, the first containing a 60 per cent solution of ethylene cyanhydrin in water with 0.2 per cent of NaOH, the second containing a 40 per cent solution with 0.2 per cent of NaOH and the third containing a 0.1 per cent solution of NaOH, to give ethylene cyanhydrin.  The process may be carried out continuously.
Patent GB-842879-A (GB)
Title: Improvements in or relating to coating fibrous sheet material
IPC: D21H25/06
Filed: 1956-09-24
Abstract: <FORM:0842879/III/1> In a process for coating fibrous sheets 9, e.g. printed cards, envelopes, book jackets, in which the cards are coated with a liquid comprising a plastic material dissolved in a volatile thinner and are dried, e.g. by infra red heating, to evaporate the thinner and leave the plastic as an adherent film on the cards 9, the cards 9 are chilled immediately after drying while the cards 9 are tacky to eliminate the tackiness and harden the coating. The cards 9 are fed singly through rubberfaced rollers 11, 12, which coat them on both faces, the roller 11 dipping in a trough 14 of varnish or lacquer 13 having a vinyl chloride base, the lacquer being circulated through a line 17 by a pump 16.  The coated cards 9 are carried by an endless conveyer 24 beneath a suction fan 33 to remove solvent vapours, through a drying tunnel 34 equipped with infra red heaters 35, 36, through a cooling tunnel 40 through which atmospheric air is passed, and through a chilling tunnel 43 through which air chilled by a refrigerator 44 is circulated. Adjacent tunnels 34, 40, 43 are separated above and below the conveyer 24 by flaps 49, 50.  Where thick cards 9 are to be coated, a valve 21 is opened to ensure that lacquer is delivered directly to the roller 12, the rollers 11, 12 being slightly spaced to accommodate the cards 9.  The conveyer 24 comprises a pair of parallel chains between which extend transverse bars which are oval in section and which carry a series of sharp, upstanding pins which support the cards 9. The conveyer may travel at 60 to 150 feet per minute, and, where the solvent is amylacetate and xylene, the tunnel 34 is at 250 DEG F. receiving 650 cubic feet air per minute, while 2000 cubic feet air per minute through the tunnel 40 reduce the cards 9 from 150 DEG F. or 170 DEG F. by 25 DEG F. or 30 DEG F.  In the tunnel 43 800 cubic feet air per minute at 30 DEG F. reduces the cards 9 to about 70 DEG F.
Patent GB-192492-A (GB)
Title: Improvements in and relating to nails, staples, spikes, hooks, brads, brobs or the like
IPC: F16B15/06
Filed: 1921-11-03
Abstract: 192,492. Humphris, F., and Roberts, K. A. Nov. 3, 1921. Nails and spikes; hook-headed spikes; screw nails; nails, barbed and serrated and pointed at each end; staples.-A nail, staple, spike, or hook of the type formed from a sheet-metal blank bent longitudinally into channel-shaped cross-section, is provided with longitudinal corrugations throughout its length. When driven, such a nail cuts and encloses a compressed core of the material into which it enters. Spring tongues may be provided with sharpened ends to engage barbwise with the material into which the nail &c. is driven. Circumferential corrugations may be provided adjacent to the head of the nail &c., or transverse corrugations may be provided therein, which are continuous with the longitudinal corrugations. The head &c. of the nail &c. may be formed by folding the metal on itself or by folding it to enclose a solid filling piece. Fig. 4 shows a plan of a. blank corrugated longitudinally and transversely and provided with spring tongues, and Fig. 5 shows the completed nail. Figs. 11, 12 show another form of nail in which the shank is spirally twisted. Fig. 13 shows a hook provided with longitudinal corrugations. Figs. 21, 22 show an eyelet-headed staple having similar corrugations. Fig. 27 shows a nail according to the invention wherein the head is formed by folding the metal upon itself. Fig. 44 shows a tubular fluted shank on which spring tongues may be provided.
Patent GB-1218084-A (GB)
Title: Preventive for infectious diseases of piglets
Inventor: KASHIWAZAKI MAMORU
IPC: C07K16/12
Filed: 1968-06-19
Abstract: 1,218,084. Preventing diseases of piglets; gamma globulins. TOMODA PHARMACUTICAL MFG. CO. Ltd. 19 June, 1968, No. 29281/68. Heading A5B. A composition suitable for administration to piglets contains as active ingredient a mixture of gamma-globulins from two or more adult pigs, each pig belonging to a different piggery, and the gamma-globulins from each pig containing different antibodies. The gammaglobulin mixture may be mixed with an antiseptic such as thimerosal or carbolic acid.
Patent GB-1282664-A (GB)
Title: Toilet seat
Inventor: STAMPER ROBIN HARRY
IPC: E03D9/052
Filed: 1970-06-17
Abstract: 1282664 Ventilating toilet seats R H STAMPER 17 June 1970 [24 June 1969] 29383/70 Heading E1C A toilet seat 10 is ventilated by fitting to its underside a cover member 36 on which is mounted a low voltage fan 20, battery holders (22.1, Fig. 1, not shown), an activated carbon filter cartridge 16 and deodoriser elements 18, the cover member providing in conjunction with a recess in the underside of the seat an air passage through which air drawn through an opening 36.1 in the cover member by the fan 20 may pass via the filter 16 and elements 18 to an outlet 21 at the rear of the seat. A switch 20.1 is fitted to the seat to control the motor. Alternatively, a switch may be arranged to be operated automatically whenever the seat is lowered. On the underside of the cover member there are provided a seal 30, engaging the top of the pan, and a guard 36.2 to protect the opening 36.1 when the seat is raised.
Patent GB-158433-A (GB)
Title: Improvements in and relating to oil vaporizers
IPC: F02M21/10
Filed: 1919-11-26
Abstract: 158,433. Elford, F. G. Nov. 26, 1919. Vaporizers, external.-Carburetted air entering at m passes to the outlet n through the cylinder h and the cylinder j. Exhaust gases circulate round the cylinder h and between the cylinder i and j; they enter at b and escape at c or d according to the position of the throttle valves e, f. The tubes i, j may be inclined to the casing a as shown or they may be co-axial with it and the tube h inclined.
Patent GB-985179-A (GB)
Title: Improvements in and relating to electric motor drive arrangements
IPC: H01H35/00
Filed: 1961-08-16
Abstract: 985,179. Control of motors; controllers; camoperated switches. DUNKERMOTOREN PRAZISIONS-KLEINSTMOTOREN-G.m.b.H. Aug. 16, 1961 [Aug. 18, 1960], No. 29518/61. Headings H2B and H2J. In a portable tool, motor 2 drives output shaft 5 through shaft 2a, threaded spindle 4, nut 6, and spring-plates 5a, and, if the output torque becomes excessive, nut 6 rotates relatively to the spindle 4 and moves thereon in the axial direction, sleeve 7 being carried therewith and spring 8, 9 compressed. Resilient arm 10a enters groove 7b to open contacts 10 in series with the motor. Simultaneously, detent 14a engages groove 7c to prevent return movement of the sleeve 7 until push-button 12 is released. When the motor has stopped, the nut 6 is returned to its initial position by the spring 8, and, when the push-button 12 is released to open contacts 13 in series with the motor, sleeve 7 returns to its orginal position to re-close contacts 10. It is therefore necessary to re-actuate the pushbutton 12 before the motor 2 can again be placed in operation. The transmissible torque is adjusted by displacing arm 10a axially in relation to the groove 7b. This is effected by means of threaded collar 15 engaging slide 11 which supports arm 10a and detent spring 14. In another arrangement, a single switch 40 serves both for normal on-off control of the motor and for disconnecting it when the torque becomes excessive. Thus, when excessive torque causes the nut to move relatively to the spindle, flange 6c engages sleeve 7 so that projection 44a passes from peripheral portion 7a on to portion 7b. Lever 44 turns to open contacts 40 whereby the nut is spring-returned to its initial position. The sleeve 7 is held, however, by engagement of projection 44a with edge 7c until pushbutton 52 is released and levers 44, 50, are spring-returned to their original positions. Axial displacement of slide 39 effects adjustment of the transmissible torque.
Patent GB-538642-A (GB)
Title: Improvements in and relating to means for securing co-ordination of motion between two or more members
IPC: F16H7/12
Filed: 1939-11-07
Abstract: 538,642. Linkwork. PARNALL AIRCRAFT, Ltd., NASH, A. G., FRAZER-, and PROCTOR, S. R. Nov. 7, 1939, No. 29579. [Classes 80 (i) and 80 (iii) [ Consists in mechanism for securing co-ordination of motion of two members. A support bracket 1 which may be secured to a mounting rotatable about a vertical but not about a horizontal axis, is furnished with a bearing 2 for a shaft 3 carrying an arm 4 forming part of the primary member. At the other end of the shaft is secured a plain flanged wheel 5 which is connected by an inextensible band 16, e.g. of thin metal, to a wheel 12 mounted on a shaft 8 carried by a bearing 7 adjacent one end of a plate 6 secured to the bracket. The shaft 8 is rotatable also in a bearing 9 provided in a bracket 10 in fixed relationship with the support bracket and to the end of the shaft there is rotatably secured a cradle 11 for the secondary member. The shaft 8 carries a sector 13 to which the wheel 12 is adjustably secured by bolts 14a, 14b in the sector passing through slots 15, 15a in the wheel. The wheel and sector may be secured in the correct position, after harmonizing of the shafts, by a bolt 14. The inextensible strip is secured to the wheels by screws 17, 18. For taking up slack and facilitating final adjustment of the wheels, jockey pulleys 19, 19a are employed. These may each consist of a sleeve 20 running on a journal 21 eccentrically mounted on a shaft 22 adapted to be locked by a nut. The wheels and belt may be protected by a cover plate 24. The jockey pulleys may be mounted (1) on support members connected through gearing or linkwork to cause said members to move symmetrically in opposite directions, (2) on a yoke adapted to be rotated about an axis intermediate the axes of the jockey pulleys or (3) eccentrically on intermeshing toothed wheels.
Patent GB-1397986-A (GB)
Title: Method and apparatus for handling documents in a copying machine
IPC: G03G15/00
Filed: 1972-06-23
Abstract: 1397986 Feeding sheets RANK XEROX Ltd 23 June 1972 29642/72 Heading B8R A document is fed into a copying machine by means of endless belts, and if the document is skew-fed, a projecting edge is detected by one of two side-edge detector microswitches, which results in reversal of the belt drive system to eject the document.
Patent GB-1280664-A (GB)
Title: Crystalline forms of nucleic compounds and the use thereof in nacreous pigments
IPC: A61Q3/02
Filed: 1969-06-11
Abstract: 1280664 Jewellery; imparting pearl-like lustre to foods ASAHI KASEI KOGYO KK 11 June 1969 [15 June 1968 (2)] 29659/69 Headings A3H and A2B [Also in Divisions AS B2 C3 C4 and C6] Nacreous pigments which can be used in food stuffs or in making artificial pearls, comprise a nucleic compound selected from nucleic bases, acid addition salts thereof, nucleosides and salts and esters thereof in the form of smooth, thin, plate-like crystals having a length of 3-100 microns, a width of 1-4 microns and a thickness of 0.05-3 microns. In Examples, the crystalline nucleic compounds are used to impart a pearl-like lustre to (14) the surface of sponge cakes, (15) fish-pastes, (16) chocolate coated sponge cakes and (17) french dressing. In Example 2, a urea resin ball is coated with a composition comprising guanosine crystals to obtain a sphere having a clear, pearl-like lustre. Reference has been directed by the Comptroller to Specification 1116900.
Patent GB-742971-A (GB)
Title: Improvements in or relating to lubricating greases
IPC: C10M169/00
Filed: 1953-10-27
Abstract: A lubricating grease comprises a lubricating oil and a thickener which comprises a metal soap produced by reaction of a polysaccharide with an alkali.  When the lubricating oil is present during the alkali reaction it should be a mineral oil, but after the reaction is completed synthetic lubricating oils, such as esters of dibasic acids (e.g. di-2-ethyl hexyl sebacate or adipate, or esters of dibasic acids with polyhydric alcohols), polyglycols, alkyl silicates, carbonates, formals or acetals, may be used alone or in addition to mineral oils to bring the grease to the desired consistency.  The polysaccharide may be cellulose, hemicellulose or starch while the alkali may be caustic soda or potash.  When the alkali reaction is carried out in the presence of lubricating oil, there is a tendency for the alkali to settle but this may be prevented if a solid suspending agent is also present.  Suitable suspending agents are those which also act as grease thickeners, such as soaps of C12-C22 fatty acids, silica gel, carbon black, bentonites and attapulgus clay. When soaps are used as suspending agents, a salt of a C1-C5 carboxylic acid may also be added so that a soap-salt complex is formed.  The soaps or soap-salt complexes are preferably formed in situ by neutralization of the added acids in the polysaccharide-oil mixture with alkali, the reaction of the alkali and polysaccharide taking place subsequently at higher temperatures.  Suitable C12-C22 fatty acids are of animal or vegetable origin, for example hydrogenated fish oil fatty acids, or may be derived through the alkali fusion of oxo acids while suitable C1-C5 carboxylic acids are formic, acetic, furoic and acrylic acids.  Esters of the C12-C22 fatty acids and/or C1-C5 carboxylic acids may be used instead of the free acids and sorbitol acetate, glycol acetate and cellulose acetate are mentioned.  Soaps of C12-C22 fatty acids or the soap-salt complexes mentioned above may be incorporated in the greases even when no suspending agent is required.  According to a modification of the invention, the thickener for the grease is prepared by the reaction of cellulose acetate with alkali, preferably in the presence of C12-C22 fatty acids, the cellulose acetate being converted to soap and alkali acetate.  The lubricating grease may contain additional ingredients such as other thickeners, antioxidants, corrosion inhibitors, tackiness agents, load-carrying compounds, viscosity index improvers and oiliness agents.  In the examples, lubricating greases are prepared from cellulose and acetic acid, or cellulose acetate, together with sodium hydroxide, hydrogenated fish oil fatty acids, phenyl alpha-naphthylamine and mineral oil, and the greases are homogenized in a Gaulin homogenizer.
Patent GB-246634-A (GB)
Title: Improvements in or relating to acoustic amplifiers or radiators
IPC: H04R1/30
Filed: 1924-12-11
Abstract: 246,634. Graham, E. A. Dec. 11, 1924. Sound magnifying and directing appliances.- A compact sound-amplifying structure having a long and gradually developing sound passage for use with loud-speaking telephones comprises a conduit. 1, a reflector 3, and a plurality of further reflectors 6, 9 with intermediate partitions 5, 8, the arrangement being such that the telephone receiver 2 is easily accessible at the front of the structure. The final outlet 12 may be flared as shown to direct the sound forwardly, or the outlet may be cylindrical so as to direct the sound laterally in all directions. A dome 14 may enclose the receiver 2. The reflectors and partitions may be coaxial and of circular crosssection or may be formed by flat and curved plates, the whole structure then being of rectangular cross-section.
Patent GB-869487-A (GB)
Title: Solderless coaxial cable fitting
IPC: H01R9/05
Filed: 1959-09-03
Abstract: 869,487. Two-part couplings. PHELPS DODGE COPPER PRODUCTS CORPORATION. Sept. 3, 1959, No. 30071/59. Class 38 (1). A male connector 6 for a coaxial cable 1 having an inner conductor 2, insulation 3, a flexible outer conductor 4 coaxially surrounding the conductor 2, and an outer insulating sheath 5 comprises a first hollow conductive sleeve 7 positioned over the sheath 5, a second hollow conductive sleeve 9 telescoped over the sleeve 7, a length of the outer conductor 4 stripped of the sheath 5 being reversely folded and sandwiched between the two sleeves the assembled sleeves and sandwiched outer conductor being crimped over the sheath 5, an insulating disc 11 carried in an annular recess 10 formed in the sleeve 9, a conductive pin 13 fastened to the disc 11 and crimped on to the inner conductor 2, and a coupling nut 18 loosely carried on the sleeve 9. As shown in Fig. 4, a female connector 17 engageable with the male connector 6 is similarly constructed except that the central pin 16 is formed as a resilient socket to receive the pin 13 and the sleeve 9 carries an externally threaded sleeve 20 to co-operate with the nut 18.
Patent GB-650762-A (GB)
Title: Improvements in or relating to high speed reciprocating ram pumps
Inventor: GRAVESON NORMAN ASHTON
IPC: F04B49/12
Filed: 1947-09-23
Abstract: 650,762. Reciprocating pumps. FIELDING & PLATT, Ltd. Sept. 23, 1947, No. 30080/46. [Class 102(i)] [Also in Group XXVI] In a radial-cylinder reciprocating pump, in which the pump pistons are actuated by an eccentric collar 40 on the pump shaft, the eccentricity of the collar being varied by members movable longitudinally of the pump shaft 11 and engaging the collar by inclined planes, the eccentric is adjusted radially by axial movement of a control shaft which is secured to radial arms or members actuated by pistons arranged to operate in cylinders to which fluid discharged from the pump is admitted. The collar 40, which is disposed between two collars 35, 36 rigidly secured to the shaft 11, is surrounded by sleeves 46, 48, the periphery of the latter being engaged by the heads 24 of the pump rams 23. Blocks 49 dispcsed in longitudinal recesses 50 in a rectangular portion 37 of the shaft 11 are provided with inclined ribs 55 which engage grooves 56 formed in the side of the bore 41 of the collar 40. A control shaft 51 within a bore 52 of the shaft 11 engages the blocks through a pin 53, to move them longitudinally thereby causing the ribs 55 to slide along the grooves 56 and move the collar 40 normal to the shaft 11. Axial movement of the shaft 51 is effected by means of ram and cylinder units 67, 66, the rams 67 of which abut caps 61 in the outer end of arms 60 which are secured to a boss 59 in which the end 57 of the shaft 51 is mounted through a ball bearing 58. A pipe 68, connected at one end to the cylinder 66 and at its other end to the discharge pipe 29, allows the discharge fluid pressure to actuate the plunger 67 thereby automatically controlling the operation of the pump. An air vessel 78 is mounted on top of the casing 30 to damp any vibrations.
Patent GB-896365-A (GB)
Title: Method of controlling the power of lifting magnets
IPC: H01F7/18
Filed: 1960-08-31
Abstract: 896,365. Supply systems for lifting magnets. DEMAG-ZUG G.m.b.H. Aug. 31, 1960 [Sept. 11, 1959], No. 30088/60. Class 38 (4). A lifting magnet is controlled by measuring the temperature of the winding, which may be in one or more sections, by one or more thermallyoperated elements which are embedded in the winding, a current depending upon the measured value operating a relay whereby the voltages applied to the winding sections, which are initially at a low value, are switched over to a higher value when the winding temperature has reached a predetermined value. More than one switching step may be used and the winding is in several sections; they are connected in series when cold and parallel when hot.
Patent GB-1412837-A (GB)
Title: Wall-mounted laundry drier
IPC: D06F57/12
Filed: 1973-06-25
Abstract: 1412837 Hinges H H WEICK 25 June 1973 [8 July 1972] 30140/73 Heading E2F [Also in Division A4] A wall mounted drier comprises a U-shaped bar 1 attached to a wall, and arms 2, 3 mounted at the ends of the bar I for pivotal movement in two directions at right angles to each other whereby the arms which carry lines 4 can be pivoted from the in-use position shown upwardly then inwardly so as to deposit the lines in the bar 1 and provide a cover for the bar. The wall-side flange of the U-shaped bar 1 has an upper projecting edge 1a' and lower projections 1a" and it has horizontally extending slots which are engaged by hooks projecting from the wall, Fig. 8 (not shown), the hooks being presented to the slots when horizontal and then being rotated to engage inclined surfaces so to clamp the bar to the wall. Right-angled hinge pins 5 provide the double pivotal movement of the arms, Fig. 3. The arms in their in-use position rest against abutments and are slightly splayed. The arms may be jointed. The channel of the bar 1 may open in a direction which is inclined to the vertical.
Patent GB-1271254-A (GB)
Title: Continuous forms envelope converter system
IPC: B31B23/00
Filed: 1969-06-13
Abstract: 1,271,254. Making envelopes. BALTIMORE BUSINESS FORMS Inc. 13 June, 1969 [9 Aug., 1968], No. 30172/69. Heading B5D. Addressed envelopes are produced by passing a continuous paper strip through a press which forms perforated and score lines thereon, then through a computerized printer, and finally through a folding and gluing means which forms the individual envelopes. The strip, Fig. 2, is perforated and scored to form a bottom panel 66, top panel 64, sealing flap 72, side flaps 74, 76 which carry perforations and are subsequently folded over panel 66, and side trim zones 60, 62 that are subsequently removed. Adhesively coated zones are shown shaded.  After printing, the strip, stacked in zig-zag form, passes to pins 128 on an intermittently reciprocated belt driven by members 166, a slip-clutch, a rack 156, crank arm 154, crank 152, which is driven from a shaft 142 connected to the main motor. As the strip is moved forwards, line 30 on the strip is positioned beneath a cutter 190 which is raised and lowered by an eccentric 194 on the shaft 142 to sever each envelope. The envelopes pass to belts 210 supported by a plate 220 and reach a station 116 where pressure strips 266 press down the marginal strips of each envelope so that rolls 260, 268 grip and tear away the trim zones 60, 62. At the next station 118 the side flaps 74, 76 are folded over by a wedge block 270 and folding member 294. The leading edge of the envelope blank next passes between guides 306, 308 until it meets a stop 315 causing it to buckle along fold line 68, Fig. 16. Belts 210 and roller 320 now grip fold line 68 and draw the blank downwardly thereby folding the top panel over the bottom panel. The folded blank then passes to an adhesive securing station 122 where heaters 330 activate the adhesive and rolls driven by gears 336, 338 supply sealing pressure. The completed envelopes finally drop on to a conveyer and pass to an automatic filling and sealing station. The machine can be adjusted to accommodate envelopes of different sizes.