baber/WOPTO huggingface dataset:
Patent GB-821353-A (GB)
Title: Improvements in polymerisation processes
Inventor: DUDDINGTON JACK ERNEST
IPC: C08F2/00
Filed: 1957-01-11
Abstract: Tetrafluoroethylene is polymerized in aqueous media to obtain colloidal polymer dispersions by a process which comprises initiating the polymerization in the presence of water containing a catalytic amount of a water-soluble catalyst and after the polymerization has started but before the amount of polymer formed exceeds 10 per cent by weight of the aqueous phase plus polymer, adding thereto an anionic dispersing agent and continuing the polymerization. Polymerization may be effected in the presence of saturated hydrocarbons containing more than 12 carbon atoms which are liquid under the polymerization conditions, e.g. octadecane, eicosane, tetradecane, cetane and paraffin waxes, and copolymers with vinyl fluoride, vinylidene fluoride, monochlorotrifluoroethylene, hexafluoropropylene, hexafluorocyclobutylene, ethylene and styrene may be prepared. Suitable dispersing agents are: (a) watersoluble salts of sulphuric acid esters of fatty alcohols, e.g. sodium, ammonium, monoethanolamine and tri-ethanolamine lauryl sulphates (b) water-soluble salts of aromatic sulphonic acids, e.g. the sodium salts of 1-methoxy-4-amino-oleyl benzene sulphonic acid and dinaphthylmethane disulphonic acid; (c) water-soluble salts of polyfluorocarboxylic acids of formula X(CF2)nCOOH, where X is hydrogen, chlorine or fluorine and n is 6 to 20, e.g. ammonium perfluoro-octanoate; and (d) watersoluble salts of polyfluorochlorocarboxylic acids of formula Cl(CF2-CFCl)nCF2COOH, where n is 2 to 6. Specified catalysts are ammonium and alkali metal persulphates, disuccinic acid peroxide and disodium gamma, gamma1-azobis-(gamma - cyanovalerate).  Dispersion stabilizers may be added to the polymer dispersions which may be concentrated, e.g. by electrodecantation, and used for coating and impregnating.
Patent GB-950129-A (GB)
Title: Improvements in or relating to malt beverages
IPC: C12H1/00
Filed: 1961-11-24
Abstract: A composition for addition in trace quantities to fermented malt beverages, e.g. beer, to improve their foaming characteristics, comprises 1-70% of a non-toxic water-soluble zinc salt and at least one of the materials gum arabic, carboxy methyl cellulose, propylene glycol alignate and carboxymethyl hydroxy ethyl cellulose. Suitable zinc salts include the sulphate, acetate, nitrate and lactate.
Patent GB-409464-A (GB)
Title: Improvements in optical eye-pieces
IPC: G02B25/00
Filed: 1933-01-13
Abstract: 409,464. Eyepieces. LEE, H. W., and KAPELLA, Ltd., 104, Stoughton Street, Leicester. Jan. 13, 1933, No. 1157. [Class 97 (i).] An eyepiece lens system comprises three collective components of which the two nearest the eye are each compounded of a double convex collective element and a dispersive element, the contact surfaces being both convex towards the eye. The third component may be simple as shown, or compound. Numerical data are given.
Patent GB-509314-A (GB)
Title: Improvements in or relating to a combined range finder and view finder for photographic cameras
Filed: 1938-01-13
Abstract: 509,314. Photographic cameras. KODAK, Ltd. Jan. 13, 1938, No. 1171. Convention date, Jan. 13, 1937. [Class 98 (i)] In a collapsable camera having a combined rangefinder and viewfinder with separate objectives of equal power, the rangefinder objective includes a member L<1> of greater refractive power fixed to the housing, and a member L<2> of less power mounted on the bed 6 for movement during focusing. The lens L<2> is carried in a mount, 17 slidable in a stand 8 on a carrier 16 pivoted to the bed at 13, and is pressed upwards by a spring 10 so that a rounded part 5 thereof engages a cam on the,objective support 9. Thus as the objective is focused, the lens is moved to effect coincidence. The stand 8 is urged outwards by a spring, but on closing the camera a shoulder 14 of the support 9 presses against a part 15 of the carrier 16 which is thereby rotated until, when the camera is closed the shoulder lies in front of the carrier and holds it closed. On opening the camera, the carrier is notched into its operative position by a spring, and the front part of the cam 7 locates the lens in its correct position. Instead of being slidable, the lens may be pivoted to a bracket on the camera bed.
Patent GB-311437-A (GB)
Title: Pneumatic suspension of vehicles
IPC: B61F5/10
Filed: 1928-01-13
Abstract: 311,437. Dunlop Rubber Co., Ltd., Paull, W. H., Fellowes, F., and Lemon, E. J. H. Jan. 13, 1928. Springs, arrangement of; underframing of bodies.-In a railway vehicle the bogie bolster is supported on one or more pneumatic cushions which have bearing surfaces at different levels. A bolster 3, Figs. 3, 5, is supported at each end on pneumatic tyres 11 mounted on an axle 12 which is supported from the bogie frame by swing links 6, the axles 12 being connected by transverse links 13. The tyres vary in diameter so that they come into operation successively. The bolster 3 has downward extensions 14 shaped to the contour of the tyres 11 so that the sidesway of the bolster is limited thereby. The tyre may be supported at the bottom on a spring plank 16, Fig. 7, the axle 12 being supported in an elongated slot in the swing link 6. Instead of a. number of tyres 11 as in Fig. 3, a. single wide tyre may be used. A single tyre surrounding the pivot pin and lying in a horizontal plane may be used, the tyre 11, Fig. 10, being mounted on a. rim 19 and having bearing strips 20 on which the bolster rests. A horizontally disposed tyre may be placed at each end of the spring plank, projections being formed on the tyre at a lower level than the bearing strips so that they come into contact to increase the bearing surface of the bolster under excessive load. The tyres may be mounted in a vertical plane at each end of the spring plank and in a longitudinal direction. Instead of using a tyre, a cushion of square or other shape may support the spring plank at each end. Rubber blocks of cellular or other construction may be inserted in, or outside of, the cushions or tyres which come into operation on deflation or under excessive load. The pneumatic cushions contain integral or independent air tubes which are inflated through an air valve and may be charged initially or maintained at a certain pressure by an air pump driven from the wheels. the pump being set in action by electrical or mechanical contacts on the inflation pressure falling below a predetermined minimum. The air may be supplied from cylinders, blow off valves being fitted.
Patent GB-1202512-A (GB)
Title: Testing the water vapour permeability of sealed packages and containers
Inventor: LYSSY GEORGES H
IPC: G01N15/08
Filed: 1969-01-08
Abstract: 1,202,512. Testing permeability of sealed containers. G. H. LYSSY. Jan. 8, 1969 [July 30, 1968], No.1195/69. Heading G1S. A sealed container 24 is tested for water vapour permeability by first placing it in a heat insulated chamber 8 having temperature controlled liquid 25 circulating between its double walls, and then blowing dry air from a pump 16 and dryer 15 through a valve 14 past the container and out through a valve 26 so that any water vapour leaking out of the container after the valves are shut is detected by a humidity sensor 2 and electrodes 3. The sensor emits a signal at a pre-set low humidity which is amplified and sent to a timer 19. When the signal increases to an upper limit the number of impulses received during the interval between lower and upper limits is shown on a counter 20 and indicates a measure of the permeability of the container.
Patent GB-272118-A (GB)
Title: Improvements in or relating to apparatus for the separation of oil from oil-containing substances
IPC: C11B1/10
Filed: 1927-01-14
Abstract: 272,118. Jackson, L. Mellersh-, (Krupp Grusonwerk Akt.-Ges., F.). Jan. 14, 1927. Fats and fatty oils, extracting by solvents.-In extracting apparatus in which the material passes through several containers where it is repeatedly subjected to pressure, the solvent passes in the same direction as the material through each container but in the opposite order of succession. The apparatus comprises three containers 1, 2, 3 to which the seeds &c. are fed at the lower ends through pipes 8, 10, 12 and which contain in their upper ends known pressure devices in heads 5, 6, 7 to which seeds are fed by worms 4. The fresh solvent is supplied through a pipe 13 to the bottom of the container 3 and passed with the seeds up the container 3 to the pressing chamber 7 where the expressed material passes away through a pipe 15 while the mixture of solvent and oil pass to the bottom of the container 2 through a pipe 14 where it meets the partly expressed material from the container 1 supplied through the pipe 10 and is carried therewith to the pressure chamber 6 of the container 2. In a modification the pressing devices and worms are driven separately and fresh solvent may be supplied automatically to each container.
Patent GB-415069-A (GB)
Title: Improvements in the manufacture and production of nitrogenous condensation products of the anthraquinone series
IPC: C09B5/16
Filed: 1933-01-13
Abstract: Anthrapyrimidine compounds are obtained by condensing 1-aminoanthraquinones with hydrocyanic acid, its salts, or organic cyanides in presence of acid condensing agents such as hydrogen halides, and aluminium chloride, preferably in solvents or diluents and in presence of catalysts, at 100 to 200 DEG  C. According to examples, (1) 1-aminoanthraquinone is condensed with benzonitrile to give C-phenyl-1 : 9 anthrapyrimidine, and the 4-, 5- and 8-benzoylamino-1-aminoanthraquinones give the corresponding substituted C-phenyl anthrapyrimidines; (2) a C-benzylanthrapyrimidine is obtained with the use of benzyl cyanide; (3) 1-amino-4-, and 5-benzoylamino-, and 4-chloroanthraquinones react with acetonitrile to give the corresponding C-methyl anthrapyrimidines; (4) hydrocyanic acid reacts with 1-amino-4-benzoylamino-1-amino, 5-benzoylamino, and 1 amino 4-chlor-anthraquinone, to give the corresponding 1 : 9-anthrapyrimidines, while a 1 : 9 : 4 : 10 anthradipyrimidine is obtained from 1 : 4 diaminoanthraquinone, and the acidyl groups may be removed at higher temperatures from the preceding products. Other 1-aminoanthraquinones specified are the 1 : 5 diamino, 1 : 8 diamino, 1-amino-2-methyl-, 1-amino-2-aldehydo, and 1-amino-2-carboxyanthraquinone, and further substituents which may be present are halogen, hydroxy, mercapto and methoxy. Further cyano-compounds specified are benzyl cyanide, benzoyl cyanide, cyananthraquinone, cyanacetic acid and other nitriles of mono-basic acids.
Patent GB-660039-A (GB)
Title: Improvements in or relating to packing machines
IPC: B65B51/16
Filed: 1949-01-17
Abstract: 660,039. Packeting-machines. CATLING,H. P., and KLINGER MANUFACTURING CO., Ltd. Jan. 17, 1950 [Jan. 17, 1949], No. 1303/49. Class 94(i) The machine forms flat packets of the type shown in Fig. 8 comprising a pair of square or rectangular panels, formed as by folding a sheet of wrapping material into halves, which are arranged face to face with their edges in register and sealed at 31 along some or all of their edges after insertion of an article or articles to be packeted such as ladies' stockings. The folded sheet is placed on a bed 16 fitted with parallel guide rails 18, 19, and pushed forward until its 'leading edge' is engaged by rubberfaced feed rollers 22, 23 (not shown) which convey it through crimping wheels 26, 27 (not shown) which form the seam 31 along the side 13. The packet is then engaged by horizontal feed rollers 32, 33, arranged at the corners of the bed 16, which transfer it to a second bed 17 arranged at right angles to the bed 16 and at a lower level. Movement of the packet along the bed 17 is prevented by a rail 47 until it has dropped clear of the bed 16, and it is then engaged by endless belts 38 which convey it to pairs of feed rollers 48, 49 (not shown) arranged at the sides of the bed and acting to feed the packet through pairs of crimping wheels 50, 51 (not shown) which form the seams 31 at the sides 12 and 14. The upper crimping wheels 26, 50 are mounted on pivoted arms which are adjustable to vary the spacing between the wheels. The crimping wheels may be replaced by rollers if an adhesive is used for sealing the edges of the packet. Alternatively, the edges may be heatsealed. The feed rollers and crimping wheels at one side of the second bed may be omitted if it is desired to produce opensided packets.
Patent GB-1411361-A (GB)
Title: Epicyclic gear box
IPC: F16H63/30
Filed: 1974-01-11
Abstract: 1411361 Change speed gearing REGIE NATIONALE DES USINES RENAULT and AUTOMOBILES PEUGEOT 11 Jan 1974 [11 Jan 1973] 01333/74 Heading F2D In an epicyclic gear-box comprising an intermediate partition 18 fixed in the casing 17 and providing oil ways and a bearing 19 for a freewheel device 20, a bell-housing 39 for a multidisc brake 15<SP>1</SP> is locked against rotation in the housing, e.g. by projections 40, is secured to the partition 18 by bolts 46, and houses an annular piston 43 slidable in a member 49 clamped between the bell-housing and the partition. The piston is hydraulically operated to apply the brake and has radial projections 43<SP>1</SP> engaged by return springs 42. The brake 15<SP>1</SP> arrests a drum 34 which is fast with a sun-wheel 10<SP>1</SP>. This sunwheel may alternatively be connected through the drum 34 and a clutch 14<SP>1</SP> to a drum 30 fast with an input shaft 4. A second clutch 14 is operative to connect a second sun-wheel 10 with the input shaft. An internal ring gear 13 constitutes the output member of the gear-box and meshes with planets 11<SP>1</SP> in mesh with the sunwheel 10<SP>1</SP>, other planets 11 also mounted on the same carrier 12 as the planets 11<SP>1</SP> meshing with the sun-wheel 10. A brake 15, which may be mounted similarly to the brake 15<SP>1</SP>, coacts with the carrier 12. In a modification the partition 18 is of smaller outer diameter and retained, e.g. by force fit, within an outer ring formed with annular chambers for the pistons which actuate the brakes 15, 15<SP>1</SP>.
Patent GB-883046-A (GB)
Title: Improvements in counter-blow hammers
IPC: B21J7/34
Filed: 1959-01-16
Abstract: 883,046. Fluid pressure hammers. MASSEY Ltd., B. & S., FOSTER, J., and BAINBRIDGE F. Oct. 14, 1959 [Jan. 16, 1959], No. 1659/59. Class 83 (4). A fluid-operated counter-blow hammer has its upper and lower tups 12, 13 coupled together mechanically on each side of the hammer for effecting synchronized movement, and compensating means 18 are provided for balancing the loads on the mechanical couplings. The upper tup12 runs along guides 11 provided on four standards 10 and is driven by a double-acting piston 16 working in a cylinder 15 mounted on a table 14. This tup is coupled to the lower tup 13 by laminated steel bands 45 disposed one on each side of the hammer. Each band is connected to the respective tups through resilient connections 47, 49 composed of steel and rubber plates, and passes over a pulley 44 on a shaft 43 carried by a link pivoted at 42 and supported through rods 40 by a compensating unit 18. The latter, Fig. 3, comprises an outer cylinder 18 secured to table 14 and an inner ram 22 secured by plate 38 to the rods 40. A metal bellows 28 protected by outer overlapping sleeves 35, 36 maintains a fluid seal between the cylinder and ram and the space between the cylinder, ram and bellows is filled with a viscous oil or a viscous silicone fluid or preferably silicone putty. An annular bronze bush 25 is fitted to the ram 22. The cylinders of the two compensating units are interconnected by a pipe 50 whereby the loads on the two pulleys 44 are balanced. The units are protected by a shield from radiated heat especially when steam is used as the operating fluid in cylinder 15. In a modification, Fig. 4 (not shown), a rubber sleeve reinforced by wire coils is used instead of the bellows 28. In another embodiment, Fig. 5, the two tups are interconnected on each side of the hammer by cables 62, 63 and a lever 59 pivoted at 57 to a link 55 which is itself pivoted at 56 to the working cylinder 155. Pivot 57 is connected by a tubular column 58 to a compensating unit 64 comprising a fixed ram 65 and outer cylinder 66, Fig. 6 (not shown) filled with silicone putty enclosed by a flexible diaphragm.
Patent GB-1159322-A (GB)
Title: Multiple Connector
IPC: H01R12/50
Filed: 1968-01-11
Abstract: 1,159,322. Two-part couplings. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 11 Jan., 1968 [14 Jan., 1967], No. 1664/68. Heading H2E. A multiple-socket connector 3 comprises an insulating housing 4 with integral partitions 17, 21 dividing it into compartments 19, each housing a sheet-metal spring contact 25, 27, 29, 31 having a straight portion 29 engaging the partition 21 and a bent portion 31 soldered to printed wiring 32 on an insulating plate 1, and being held in position by a glued-in strip 33, e.g. of glass-polyester, having slots (not shown) for engaging lugs 39 on the partitions 21 and slots (not shown) in the portions 29 of the spring contacts. Contact pins 9 of a mating connector 5 have bevelled lower ends which enter apertures 23 in connector 3 and are resiliently held between the ends 25 of the contact springs and the side walls of connector 3; upper ends threading apertures 41 in a fixed insulating plate 7 and soldered to a printed circuit thereon or receiving wrapped-wire connections; and wider central portions 40 secured on the insulating body 8 of the connector 5 by a slotted insulating strip 43 engaging slots in the pins 9. At each end of the body 8, a channel-shaped extension 11 fits the end 13 of the connector 3 which has an extension 15 bolted to the plate 1. The spring contacts may be punched from sheet metal with their ends 31 connected by a strip which is broken off after insertion into connector 3 and after gluing the securing strip 33. The contact pins 9 may be similarly punched, having strips connecting both ends. To form the bevelled ends, U-shaped grooves are punched adjacent one strip, which is broken off; the pins are inserted into the connector 5 and the second strip removed. Preferably, the contact ends of the pins are gold-coated. Alternatively, if a supporting strip 43 is omitted, the second connecting strip is broken off, the free ends of the pins 9 are soldered in a printed circuit on the plate 7, and finally the strip adjacent the V-shaped grooves is removed.
Patent GB-1500614-A (GB)
Title: Circuit for the tuning of a television receiver
IPC: H04N5/50
Filed: 1975-01-15
Abstract: 1500614 AFC systems INDESIT INDUSTRIA ELETTRODOMESTICI ITALIANA SpA 15 Jan 1975 [25 Jan 1974] 1670/75 Heading H3A In or for a TV receiver an intercarrier sound channel comprises a demodulator 4 for separating the "intercarrier" signal 14 from the received signal 1 and a limiting amplifier 22 with symmetrical outputs, and a video channel provided with a suppression filter 3 tuned to the sound intermediate frequency and a video detector 5, signals from 22 and 5 are supplied to a phase comparator 21 in the form of a double symmetrical demodulator whose output 12 controls a high frequency oscillator of the receiver. The signals from detector 5 preferably pass via a second limiting amplifier 20 having symmetrical outputs to comparator 21, and the signals from amplifier 22 are also fed directly and via a phase shifter 26 to a second symmetrical coincidence demodulator 23 from which the demodulated sound signal 11 is fed to an audio frequency amplifier. Two signals at the intercarrier frequency are fed to comparator 21 via 4, 22 and 3, 5, 20; filter 3 imposes a phase shift on the signal passing through it if the received sound IF differs from the tuned frequency-i.e. if the tuning is not exact. This results in a control voltage 12 which is applied to, e.g. a varicap diode in the oscillator to adjust its frequency. Each pair 20-21 and 22-23 may be formed as an integrated circuit 24, 25 as shown in Fig. 4. Here phase shifter 26 is formed by coil 102 and capacitor 103 which provide phase modulation at the rate of audio modulation of the signal. The oscillator control voltage 12 is obtained from pin 8" of IC24 via a circuit which includes an AFC on/off switch 137, a switch 143 for selecting Bands I, III or IV and V, and channel select switches 146, 150.
Patent GB-711820-A (GB)
Title: Improvements in digging and carrying scrapers
Inventor: ADAMS WILLIAM JOSEPH
IPC: E02F3/64
Filed: 1952-01-21
Abstract: 711,820. Bowl-type scrapers. EUCLID ROAD MACHINERY CO. Jan. 21, 1952, No. 1682/52. Class 68(1) In a tractor-drawn bowltype scraper the hoist means for raising and lowering the bowl with respect to the yoke comprises one or a pair of single-acting pistoncylinder hoist units 65, 66 the cylinders of which are mounted on the yoke 50, The forwardly projecting pistons 67c each carry two rotatable sheaves 71, 72 or 75, 76 whilst at the rear of each cylinder, in alignment, there are two more sheaves 73, 74 or 77, 78. A cable 79 is dead ended at 79a on the yoke and is led by guides 80, 81 around the front 71 and rear 73 sheave of one hoist unit. downwards about a guide 82 on the bowl 12, and then upwards and over sheaves 74, 72 before being led by a crossover run by guides 84, 85 to be received in an identical manner about the sheaves of the second unit and another guide on the bowl and to be dead ended on the yoke. A similar cable hoist 67 controls the front apron 53. The pivotal connection 52 of the yoke to the bowl is on an axis slightly to the rear of the digging blade 16 and approximately two-fifths the way up from the bottom to the top of the bowl. The drawbar structure has an aperture A to enable the tractor driver to view the working parts of the scraper from the driving seat. Specifications 711,819 and 711,821 are referred to.
Patent GB-537875-A (GB)
Title: Improvements relating to electric junctions
IPC: H02G15/18
Filed: 1940-01-29
Abstract: 537,875. Cable joints ; twopart couplings. CHANCE BROS. & CO., Ltd., and GOETZL, A. Jan. 29, 1940, No. 1793. [Class 38 (i)] A joint or detachable coupling d between the conductors b of cables a is enclosed in a watertight manner by a sleeve e of rubber or other impervious flexible material vulcanized to the cable insulation c or other parts of the junction. The sleeve is enlarged at the centre to fit over the connection block &c. d and shaped at.its ends to fit closely to the cable insulation c. Specification 22404/91, [Class 38], is referred to.