baber/WOPTO huggingface dataset:
Patent GB-711630-A (GB)
Title: Improvements relating to apparatus for dispensing pastes, liquids and other substances
IPC: A47K5/12
Filed: 1951-11-27
Abstract: 711,630. Shop fittings. CHURCHILL,. H. W. S., and SCHOFIELD, C. S. Nov. 25, 1952 [Nov. 27, 1951]. No. 27819/51. Class 116 [Also in Groups XVII and XXVIII] In apparatus for dispensing measured quantities of pastes or liquids gravity fed from a bottle or like container secured to the apparatus by relative rotation thereof, by means of a reciprocative piston sliding in a cylinder and operated by a hand lever to expel a predetermined amount through a self-sealing discharge orifice, a piercing element is mounted within the socket receiving the container neck and is arranged on insertion and rotation of the container to pierce and cut an opening in the container's cap through which the contents may flow into the body of the apparatus. Fig. 1 shows a dispensing apparatus wherein a socket 9 having four lugs 23 formed in its interior wall is adapted to receive the neck of an inverted bottle 20 containing the substance to be dispensed, which is closed by a flat or domed dished and ridged cap 21 fitting the bottle top and having a skirt 29 closely embracing the neck, the skirt being formed with four peripheral lugs 22 coacting with the other four lugs 23 to lock the bottle to the apparatus by insertion and rotation within the socket. A triangular pyramidal spike 2 comprising three equiangular tapering blades 3 is mounted on a hollow base 1 fixed in the floor of the socket, and is cut away at 5 to a trefoil shaped opening communicating with a duct 11 leading to a cylinder bore 12 in the body 10 of the apparatus in which a piston 16 is reciprocated by a rod 15 and hand lever 17 to eject at each stroke a measured quantity of the substance to be dispensed through an elastic discharge nozzle 18. On insertion of a capped bottle in the socket the spike 2 cuts three radiating slits in the bottle cap which after rotation to lock the bottle are opened out into a triangular hole through which the bottle contents can run to the cutaway 5 and duct 11 to the dispensing cylinder 12. The cap and socket lugs may be inclined so that the locking rotation of the bottle advances its top towards the floor of the socket to compress a resilient sealing ring. Specifications 676,096 and 700,818, [Group XXVIII], are referred to.
Patent GB-1156492-A (GB)
Title: Improvements in or relating to Handwheels
Inventor: SPRINGALL PETER DAVID
IPC: B62D1/04
Filed: 1965-07-01
Abstract: 1,156,492. Hand wheels. P. D. SPRINGALL Ltd. 29 June, 1966 [1 July, 1965], No. 27884/65. Heading B7J. A hand wheel comprises a rim connected by spokes to a hub wherein the rim is formed from an annular metal core, a sponge rubber &c. body, and an outer plastics (e.g. polyvinyl chloride) skin 9, the skin 9 being applied by wrapping sheet material around the body and securing it in place thereon. In an embodiment, the core comprises two annular channel-section elements 4, 5 welded together, to which is welded or riveted the outer ends of the spokes extending through slots in the element 4. The body comprises two halves 7, 8 glued together, and formed with finger grips. The skin 9 is high frequency welded at 10 to itself, and glued to the halves 7, 8. A layer of foam rubber (not shown) may be interposed between the body and the skin 9. In another embodiment, the core comprises an annular metal plate to either side of which are glued body halves. A textile reinforcement is provided under the skin 9. In a further embodiment, a sheath of plastics is moulded on to the outer portion of each spoke 2 to serve as a thumb-rest. In other embodiments, the core is solid circular-section rod, or is a circular-section tube; and the body is formed in one piece with an inner split, or is moulded around the core; and the spokes are stretched wire.
Patent GB-876215-A (GB)
Title: Improvements in or relating to processes and apparatus for the welding of heavy workpieces
IPC: B23K11/04
Filed: 1959-08-14
Abstract: 876,215. Welding by pressure. SIEMENSSCHUCKERTWERKE A.G., and KLOCKNER-HUMBOLDT-DEUTZ A.G. Aug. 14, 1959 [Aug. 16, 1958], No. 27910/59. Class 83 (4). In a method of resistance butt-welding heavy workpieces of short overall dimensions considered in the upsetting direction, the two workpieces 9 are gripped between two pairs of intermediate jaws 5, 7 and 6, 8 which are supported by vertically displaceable arms 2 mounted on a carriage 1. The carriage is moved into a welding-machine which has lower electrodes 10, 11 on to which the workpieces and intermediate jaws are lowered and upper electrodes 12 and 13. The electrodes 11 and 13 move to upset the weld metal and stops 14 serve as abutments.
Patent GB-200006-A (GB)
Title: Portable microscope lamp and stand
IPC: G02B21/06
Filed: 1922-10-16
Abstract: 200,006. Newton, C. A. Oct. 16, 1922. Microscopes.-A portable microscope illuminating appliance comprises a rod 6, upon which is mounted a lamp 8, a condenser 9, and a light filter support 10, the rods 6 being connected by a swivelled joint 3, 4 to a vertical stand 2 having a base 1. The adjustable arms by which the fittings 8, 9, 10 are supported are clamped to the rod 6 by screws 12, 13, 14 so that the fittings may be moved together without altering their relative positions, when the rod 6 is adjusted. The condenser 9 is supported on the rod 6 behind a collar 16 so that it may be swung out of the optical axis without changing its focal plane. When fitting a Nicol prism in the support 10 this support is arranged between the lamp 8 and the condenser 9.
Patent GB-681127-A (GB)
Title: Formaldehyde polymers
IPC: C08G2/08
Filed: 1950-11-16
Abstract: Paraformaldehyde is made by contacting formaldehyde with a cool liquid which is a non-solvent for both and contains a polymerizing catalyst which may be basic, e.g. triethylamine, sodium carbonate or hydroxide, or acidic, e.g. sulphuric acid.  The quenching liquid may be acetone, methylal, diethyl ether or tetrahydrofurane.  Vapours of aqueous formaldehyde containing at least 60, e.g. 60-90 per cent by weight formaldehyde, with other diluents such as methanol, methane or carbon oxides according to the source, may be used.  Products of vapour phase oxidation of methanol or methylal are suitable.  The amount of polymerizing catalyst is varied according to the degree of polymerization desired and is preferably such that dilution of the quenching liquid with an equal weight of water gives a pH of 4-8 with an alkali or less than 2 with an acid catalyst.  Preferably, the liquid is at 10-40 DEG  C.  The liquid containing the polymer may pass to a settling chamber, the polymer being removed as a slurry and the supernatant liquid recycled after cooling.  The slurry is pressed or centrifuged, dried, melted and flaked or spray dried. The build-up of water or methanol is avoided when using oxidation products by taking off a side stream from the used quenching liquid, distilling to recover an acetone-methanol azeotrope which is recycled, methanol which is again oxidized, and dilute formaldehyde which is concentrated and mixed with the feed.
Patent GB-813196-A (GB)
Title: Production of dehydroacetic acid
Inventor: BRANCH SIDNEY JOHN
Filed: 1956-09-14
Abstract: Dehydroacetic acid is prepared by a process comprising adding diketene to an inert solvent in the presence of trimethylamine and recovering the resulting dehydro acetic acid, the addition being made and reaction effected at a temperature from -10 DEG  to 50 DEG  C. under substantially anhydrous conditions, i.e. the reaction mixture should not contain more than 0.1 per cent by weight of water.  The solvent may be an aromatic hydrrbon, ocae.g. benzene, toluene or xylene.  The diketene is preferably added at a rate no greater than that at which it is consumed.  The catalyst may be used dissolved in a non-aqueous solvent such as the reaction medium or methanol.  The process may be operated continuously, all or part of the resulting acid being separated and the residue containing inert solvent being recycled, preferably after removal of any acetic acid therein.  The crude acid may be purified by washing with a suitable solvent followed by sublimation, or by co-distillation with methyl acetoacetate.  Numerous examples are given wherein, typically, diketene is slowly added at 15 DEG  C. to toluene containing about 0.3 per cent by volume of trimethylamine (introduced in methanol), the resulting dehydro acetic acid is filtered off and the residue is re-used as inert solvent for a subsequent reaction with or without prior removal of acetic acid therein by distillation.  Comparative experiments are described employing temperatures above 50 DEG  C. or using triethylamine as catalyst.  According to the Provisional Specification, other catalysts may be used instead of trimethylamine, for example, alkali metal salts of aliphatic alcohols and of phenols, alkali metal hydroxides and tertiary amines generally, such as trialkylamines.
Patent GB-483319-A (GB)
Title: Improvements in or relating to photographic printing of lenticular film
IPC: G03C7/14
Filed: 1936-10-16
Abstract: 483,319. Printing lenticular films for colour photography. KODAK, Ltd. Oct. 16, 1936, No. 28143. Convention date, Oct. 31, 1935. [Class 98 (ii)] In printing transversely lenticulated film, the original and copy films are advanced at the same speed, but there is caused continuous relative movement between the image and the copy film in order to eliminate moire pattern. A source of light with a single filament extending parallel to the film embossing, is imaged by a condenser lens 2 on to the image layer 3 of a film 4 having transverse lenticulations 5. An objective lens 6 preferably of the same aperture as the lens 2 images the original film 4 onto a copy film 7 having a sensitive layer 8 and lenticulations 13. The illumination of the layers 3, 8 is limited to the width of a single lenticulation by slits 10, 12 respectively. The films are preferably arranged in the same plane and are moved by sprockets on a common shaft, the light being refracted from one film to the other by prisms. In the method applied to contact printing, the two films are moved with their lenticulated surfaces substantially in contact. An objective produces an image of a large slit for illuminating the film, the width of the imaged slit being equal to that of a single lenticulation. In another modification, the two films are moved in opposite directions, and the magnification of the picture is made such that the movement of the projected image is greater or less than that of the copy film by the width of one embossed element, during the time required for one element to pass the slit 21. Reference has been, directed by the Comptroller to Specifications 288,290, 329,899, [both in Class 98 (ii)], and 377,177.
Patent GB-363010-A (GB)
Title: Improvements in or relating to pulverizers
IPC: B02C13/28
Filed: 1930-09-20
Abstract: 363,010. Impact pulverizer mills. ERIE CITY IRON WORKS, East Avenue, Erie, Pennsylvania, U.S.A.-(Assignees of Kaeinmerling, G. H.; 143, East 6th Street, Erie, Pennsylvania, U.S.A.) Sept. 20, 1930, No. 28153. Convention date, Sept. 27, 1929. [Class 59.] A paddle 5 for an impact pulverizer is slotted to straddle a carrier plate 4 provided with trunnions 8 which are engaged by hooks 7 on the paddle. The end of the slot in the paddle is inclined at 9 and a flat 4a is formed on the carrier and the inclination of the hook is such that it slides on the trunnions when the base 9 is slid along the flat 4a. The paddle is then turned into a radial position and secured therein by a pin 11 adapted to break when unbreakable material is encountered by the paddle. The sides of the paddle overlap the sides of the hook slots and protect the ends of the trunnion.
Patent GB-853839-A (GB)
Title: Fork joint for pivotable telescopically extensible rod aerials
IPC: H01Q1/08
Filed: 1959-08-18
Abstract: 853,839. Aerials. DOHM, W. Aug. 18, 1959 [Dec. 2, 1958], No. 28229/59. Class 40(7). A telescopic aerial 1 is pivoted at its base 6 by. a fork joint. Controllable frictional resistance is provided by the tightening screw 15 which is situated below the pivot 14. Spring discs may be inserted between the lug 7 and the arms 12, 13 of the fork.
Patent GB-736331-A (GB)
Title: Improvements relating to tools for sanding and like operations
IPC: H03F3/52
Filed: 1953-10-13
Abstract: 736,331. Sanding tool. VIVIAN, C. H. March 19, 1954 [Oct. 13, 1953], No. 28231/53. Class 60. A hand sanding tool has a frame 1 of strip metal, the rear extremity being bent upwardly at 2 to serve for attachment of a handle 3, the opposite end being bent upwardly and rearwardly at 4 to form a hand grip. A right angle bracket 8 is spot welded or riveted to the upper surface of the frame and supports a roller carrying strip abrasive material 7 ; the roller is secured to the bracket by a bolt passing axially through the roller and through an openended slot 13 in the bracket and secured by a wing nut 11. The end of the strip is threaded through slots 5, 6 in the frame portion 4. A bracket 14 of channel shape has limbs 15 turned inwardly to engage the inner face of the part 2, the base of the channel being topped to receive a stud 16 rigidly associated with the wooden or other handle 3 ; the head 17 of the stud engages the strip to hold it taut. The strip 7 is wider than the frame, the edges of the strip being turned upwardly to embrace the frame edges. An attachment member of arcuate or other sectional shape may be secured to the frame for dealing with surfaces which are not flat.
Patent GB-161907-A (GB)
Title: Improvements in or relating to driving gear for mortising machines
IPC: B27F5/06
Filed: 1920-10-06
Abstract: 161,907. Cooksley, A. Oct. 6, 1920. Mortising.-In a a mortising machine such as is described in Specification 21093/13, the idle sprocket wheel 14<1> for keeping the driving-chain 15 tight is carried on an arm 12<1> pivoted on the axle of the driving-sprocket 11 and counterweighted by a weight 22. A spring may replace the weight, and the chain and sprocket may be replaced by a pulley and belt drive.
Patent GB-1165517-A (GB)
Title: Emulsifiers for Anionic Bitumen Emulsions
Inventor: TOURRET ROGER
IPC: C08K5/42
Filed: 1968-06-14
Abstract: 1,165,517. Bitumen emulsions. ESSO STANDARD SOC. ANON. FRANCAISE. 14 June, 1968 [21 June, 1967], No. 28370/68. Heading B1V. [Also in Division C3] Anionic bitumen emulsions may be prepared with emulsifiers comprising sulphonated alkyl benzenes derived from polyolefins and consisting predominantly of monoalkyl benzene sulphonates and containing meta dialkyl benzene sulphonates and having a mean molecular weight of 400 to 500, the amount of meta dialkyl benzene present before sulphonation being such that the alkyl benzene sulphonate has an optical density of 0.060 to 0.330. Preferred emulsifiers are obtained by alkylating benzene with polypropylene and sulphonating with oleum. In examples bitumen is heated to 90‹C and emulsified in aqueous sodium sulphonates of benzene alkylated with polypropylene.
Patent GB-602428-A (GB)
Title: Addressing machine
IPC: B41L47/18
Filed: 1945-10-26
Abstract: 602,428. Addressing-machines. HENNINK, H. Oct. 26, 1945, No. 28389. Convention date, Sept. 2, 1940. [Class 100(ii)] Address-plates 3 fed along a channel 9, 10 drop into a receiver 7 arranged transversely to the channel, the receiver being so positioned that each plate as it drops falls over the upper edge of the preceding plate already in the receiver and tilts about an axis parallel to the direction of movement of the plates in their travel through the printing zone. The plates are supported by a wall 6 moved step-by-step by a lever &c. coupled to the addressplate feed mechanism. The receiver 7 may be inclined or horizontal. Specification 367,375 is referred to.
Patent GB-813992-A (GB)
Title: Improvements in or relating to the production of bacteriophage resistant strains of lactic streptococci
Inventor: GOSSLING BRIAN STEPHEN
IPC: C12N15/01
Filed: 1955-10-05
Abstract: Cheese production is characterized by the use of bacteriophage resistant strains of lactic streptococci e.g. Streptococcus lactis and Streptococcus cremoris.  The strains are produced by suspending the lactic streptococci in a suitable liquid medium and subjecting them to a severe physical shock sufficient to kill at least 10 per cent. of the organisms whilst leaving some viable, thereby causing mutation of at least some of the remaining organisms to at least one strain possessing resistance to bacteriophage injection (see Group VI).  Improved yields are obtained by reculturing the treated streptococci with chemical or radiological resuscitants such as sodium thioglycollate, tungsten light or non-germicidal mercury light.  The bacteriophage resistant streptococci are treated in manner known per se to improve their acid production properties. Thus, they may be recultured in a medium to which has been added the whey resulting from the clotting of milk by an untreated starter or the products of autolysis of an untreated starter of a different strain in water, or recultured in a medium containing both the treated starter and an untreated starter of a different strain.ALSO:A culture of lactic streptococci, e.g. Streptococcus lactis and/or Streptococcus cremoris, suspended in a suitable liquid medium, is subjected to a severe physical shock sufficient to kill at least 10 per cent of the organisms, whilst leaving some viable, thereby causing mutation of at least some of the remaining organisms of said culture to at least one mutant strain possessing resistance to bacteriophage infection.  The micro-organisms are used as "cheese starters" in the production of cheese (see Group I).  The liquid medium must be compatible with the streptococci and must be capable of serving as a vehicle for the administration of the physical shock treatment.  Physical shock includes shock treatment of a physico-chemical nature but excludes biological or biochemical shock. Treatments specified are (a) electrical, (b) thermal, (c) radiation, (d) physico chemical, and (e) a combination thereof.  The shock is such that at least 10 per cent but less than 100 per cent and especially 90 to 95 per cent of the organisms are rendered non-viable.  It is preferred that the shock treatment should take the form of a series of repeated shocks.  Improved yield of bacteriophage resistant streptococci are obtained by reculturing the treated streptococci with chemical or radiological resuscitants such as sodium thioglycollate, tungsten light or nongermicidal mercury light. The bacteriophage resistant strains may be treated in a manner known per se to improve their acid production properties.
Patent GB-221995-A (GB)
Title: Improvements in starting resistances for electric motors
IPC: H01C10/10
Filed: 1923-11-10
Abstract: 221,995. Kiµrbye, O. Nov. 10, 1923. Switches, actuating.-Starting means for electric motors comprise a variable carbon resistance 1 the piston rod 9 of which is linked to a crank on a shaft 13 to which is also fixed a disc 28 gapped to mesh with a single tooth on a disc 27 fixed to a manually-actuated shaft 15. Similar discs 16, 31 on the shaft 15 actuate discs 19, 35 which are loosely mounted on the shaft 13 and which comprise cranks link-connected respectively to double- and single-poled switches 23, 38. On turning the handle 14 to start the motor, the disc 16 first actuates the disc 19 to close the switch 23 and link up the motor circuit through the resistance 1, which is then gradually cut out by the interaction of the discs 31, 35. Finally, the switch 38 is closed to link up the motor circuit without passing through the resistance 1. On stopping the motor, the piston 6 is first returned to initial position, and the switches are then opened. The switches may be housed in a casing 42 of glass or other suitable material.
Patent GB-159004-A (GB)
Title: Improvements relating to rotary printing machines
IPC: B41F13/02
Filed: 1919-11-17
Abstract: 159,004. Holbrook, T. H. Nov. 17, 1919. Rotary machines. - In a rotary printing- machine for printing paper, &c. to be used as labels, wrappers, &c. two webs of paper, &c. are drawn from two rolls a, b, and are brought together by tension rollers c so that they are caused to travel together towards the rollers d, where they are again separated, the upper web passing over guide-rollers f, f<1>, through the printing-couple g, and the lower web direct through another printing-couple e and thence over guiderollers h to a roller i, where both webs are brought together again. The superimposed webs are then slit into strips of label &c. widths by rotary slitters j, and pass between separating- strips p to two winding-reels k, l, which aremounted on pivoted arms o and rest upon, and are driven frictionally by, driving-rollers m, n.
Patent GB-433355-A (GB)
Title: Improvements in screening devices for high frequency electrical apparatus and parts thereof
IPC: H05K9/00
Filed: 1934-10-05
Abstract: 433,355. Condensers. LORENZ AKT.-GES., C., 1, Lorenzweg, Tempelhof, Berlin. Oct. 5, 1934, No. 28568. Convention date, Dec. 12, 1933. Drawings to Specification. [Class 38 (ii)] [See also Groups XL and XXXVI] A screening device for high-frequency apparatus or parts thereof is constructed of ceramic material which is insensitive to temperature change and is coated with metal for example by metallizing with copper or silver. The material " Ardostan " having a coefficient of linear expansion of 1.10<-6> may be used.
Patent GB-1510869-A (GB)
Title: Circuit arrangement for converting a bridge unbalance into a frequency variation
IPC: G01R17/06
Filed: 1975-07-08
Abstract: 1510869 Resistance bridge PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 8 July 1975 [10 July 1974] 28683/75 Addition to 1417069 Heading G1U The system described in the Parent Specification in which the out-of-balance voltage from a resistance bridge is converted linearly into a corresponding frequency or cyclic period, is modified so that the conversion is non-linear, whereby the relationship between the actual non-electric physical variable that caused the unbalance and the output frequency or cyclic period is made linear. In the Parent Specification the unbalance voltage from the bridge B , Fig. 1, was offset by a single voltage Uk. According to the invention it is now offset by the voltage Uk and an additional voltage E from a circuit N Fig. 2 (not shown), which, by forming an appropriately weighted sum of the first derivative, the second derivative, the first integral and the second integral of various voltages already existing in the circuit, produces a voltage that introduces the desired non-linearity. The principle employed is essentially that if the constant amplitude voltage sinwt has a frequency proportional to the unbalance voltage, then the derivative wsinwt has an amplitude proportional to the unbalance voltage.
Patent GB-1274264-A (GB)
Title: Dibenzocycloheptene derivatives
IPC: C07C63/331
Filed: 1969-05-01
Abstract: 1,274,264. Substituted dibenzo-cycloheptene. F. HOFFMANN-LA ROCHE & CO. A.G. 1 May, 1969 [3 May, 1968], No. 28707/71. Divided out of 1,274,261. Heading C2C. [Also in Division C5] 1 - Methyl - 10,11 - dihydro - 5 - allyl - 5- hydroxy - 5H - dibenzo[a,d]cycloheptene is prepared by reaction of the corresponding 5-one with allyl magnesium bromide.
Patent GB-207187-A (GB)
Title: Burner for liquid fuel
IPC: F23D11/14
Filed: 1923-11-15
Abstract: 207,187. LinkÚ, C. Nov. 15, 1922, [Convention date]. Spray burners. - An adjustable steel, nickel or similar plate 1 arranged in the lower or air passage F of a wide-name liquid-fuel burner has its end adjacent the burner tip formed with a flat extended groove 1<a>. The fuel is supplied through the upper passage E. The adjustment of the plate varies the direction of and regulates the flame. The other end of the plate is secured to a sleeve 2 mounted on a threaded spindle 3 passing through the burner casing and fitted with a milled adjusting nut 4. A stop 7 is provided for limiting the movement of the rod 3.