baber/WOPTO huggingface dataset:
Patent GB-970817-A (GB)
Title: Method and apparatus for treating, and products formed from, continuous filamentary tows
Inventor: BERGER RICHARD MALCOLM
IPC: D01D10/04
Filed: 1962-04-04
Abstract: 970,817. Pad applicators. U.S. FILTER CORPORATION. April 4, 1962, No. 13038/62. Heading A4K. [Also in Divisions B2, B5 and B6] A rod-like tow having resistance to deformation is produced by impregnating a continuous filamentary tow with a plasticizer for the material of which at least some of the filaments are formed, subsequently passing the tow through an aperture or conduit to gather it into rod-like form and heating the tow by passing a heated gas or hot vapour through the tow simultaneously with the gathering of the tow. The tow may consist of not less than 50% by weight of cellulose acetate filaments. The heating of the impregnated tow may be effected by passing steam through the tow during its gathering. In addition to cellulose acetate fibres the tow may contain regenerated cellulose fibres, cotton, cellulose acetate-butyrate or propionate fibres, metal fibres, wood fibres, asbestos fibres or sawdust. A list of preferred plasticizers for the tow filament is furnished. In the examples, the tow consists of cellulose acetate filaments and the plasticizer is either glycerin triacetate or acetyl tri-iso hexyl citrate. Tows which have been process in accordance with the invention may be cut into short lengths for use as cigarette filters and other types of filter and in the manufacture of applicators and marking devices. As shown in Fig. 8, a dispenser comprises a hollow body 200 provided with a nozzle 202 and a closure cap 204, and containing a length of tow 206 treated according to the invention and functioning as an absorber designed to hold as much liquid as possible. The absorber 206 is coupled with an applicator wick 208 whose rear end is in contact with the front end of the absorber and whose other end projects through the nozzle 202. As shown in Fig. 14, a marking device 602 comprises a wrapper 604 enclosing an absorbent body 606 which is a length cut from a tow treated according to the present invention. The wrapper 604 may comprise a foil of a metal such as aluminium coated with a thermoplastic material such as polyethylene. The wrapper may be applied to the tow in lengths and the wrapped tow may thereafter be cut into lengths corresponding to the length of each marking device. The tow body 606 is then moved forward in the wrapper to expose an end portion which is given a frusto-conical form 606a by means of a forming die 620 as shown in Fig. 15. The die comprises a body 622, a frusto-conical recess 626 extending therethrough and having a polytetrafluoroethylene liner 628, and a steam duct 624, so that the frusto-conical shape 606a is imparted to the front end of the body 606 when it is pressed into the recess 626 of the die, the front of the wrapper 604 also being given a frusto-conical shape 604a. Ink or other writing liquid is introduced into the absorbent tow body 606 through the open rear end of the device 602 which is then closed by collapsing the rear end of the wrapper over it.
Patent GB-128991-A (GB)
Title: Improvements in Adjusters for Rangefinders.
IPC: G01C3/02
Filed: 1917-09-12
Abstract: 128,991. Barr & Stroud, Barr, A., and Stroud, W. Sept. 12, 1917. Optical systems; tcsting- apparatus, auxiliary, for range-finders. The optical equivalent of an infinitely distant mark (or of a mark at a definite range) is obtained by means of a collimator, refractive means for causing light passing from the collimator to be divided into two beams and diverted at a definite angle, and refractive means for subsequently rendering the two beams parallel (or making the angle between them that corresponding to the definite range selected for testing). Doubly -reflecting prisms are proposed in the Provisional Specification. In the arrangement shown in Fig. 3, a prism 3 is placed in front of the upper half of the objective of a distant collimator and a similar oppositely-acting prism 4 is placed in front of the right-hand window of the range-finder 5; light from the lower half of the collimator objective enters the left-hand window of the range-finder directly. When the collimator system is to be near to the range-finder, prisms of larger angle may be employed, there being a refractive system for each end of the range-finder. In Fig. 6 is shown a mounting with means for adjusting the prism 4 about the following axes : (1) one parallel to the edge of the prism ; (2) one parallel to the line 9 bisecting the prism angle; and (3) one parallel to the line 10 perpendicular to the line 9. The first adjustment is effected by means of screws 41, 51 acting on a lug 12 of a plate 11 carrying the prism and rotating inside a fixed ring 31; the other adjustments are obtained by means of a carrier 16 for the ring 31 supported at three points 17, 18, and 19. there being a fixed pin at 17 and adjusting screws at 18, 19.
Patent GB-1567746-A (GB)
Title: Endless flatsided tubular blet
IPC: B65G15/30
Filed: 1978-04-04
Abstract: A number of pull elements (1) are laid around rotary rollers (3, 4) to form virtually parallel helical loops. As a result of the rotation of the rollers (3, 4) and the unwinding of the supplied elements (1) by conventional unwinding devices, a tubular structure of pull-element loops is formed along the axial extension of the rollers. By means of a sewing seam (6), the freshly supplied pull-element loops (5a) are sewn to the immediately preceding loops (5b) already sewn. This results in a transversely sewn tubular structure with mutually overlapping seams (6). To make the seam (6), there is arranged between the rollers (3, 4) a sewing head (7), the working speed of which is synchronised with the rotational speed of the rollers. The sewn tube is drawn off continuously from the rollers and cut into belts of desired width. <IMAGE>
Patent GB-888781-A (GB)
Title: Improvements in transportation vehicles
IPC: B62D49/06
Filed: 1960-04-13
Abstract: 888,781. Tractors. MALMGREN, A., WIDEGREN, L. H., and MUOTKA, R. L. April 13, 1960 [May 22, 1959], No. 13141/60. Classes 79(1), 79(2), 79(3) and 79(5). The power system of the tractor of an articulated two-wheeled tractor-two-wheeled trailer combination comprises two parts side by side as viewed in plane and operatively connected together, one part comprising an internal combustion engine and the other part comprising transmission gearing connected to the wheels. The tractor is constructed from a conventional tractor by removing its steered wheels and steering gear and dividing the tractor into two parts, cutting through the output shaft of the clutch and re-seating the engine unit at 180 degrees to its former position and to one side of the transmission unit. The engine unit comprises the engine 1, radiator 2, hydraulic clutch 3 and multiplate clutch 4, the output shaft of which has been severed and the ends connected by gearing 5, the transmission unit comprising a differential 9 driving the wheels 10, reversing gearbox 6 with an extension 7 for an epicyclic gear box 8. The tractor A is articulated at C to a trailer B having a load carrying member 31 pivoted on trunnions 33 and tiltable by a ram 35, the steering arrangement comprising a pair of hydraulic rams 30 operated from a steering wheel 14. Alternative control seats 12, 13, facing opposite directions, are provided, the clutch, brake and throttle pedals being mounted on a turret 16 rotatable through 180 degrees, each pedal operating through a hydraulic system comprising a main cylinder 21, a working cylinder 22 and a flexible connection 23.
Patent GB-796012-A (GB)
Title: Improvements in or relating to television systems
Inventor: WETHEY EUGENE PETER
IPC: H04N5/50
Filed: 1954-05-06
Abstract: 796,012. Radio signalling. KOLSTERBRANDES, Ltd. April 29, 1955 [May 6, 1954]. No. 13228/54. Class 40 (5). In a two waveband television system the higher-frequency carrier is transmitted together with an auxiliary unmodulated carrier so that the frequency difference is equal to the frequency of the R.F. or I.F. stages of a television receiver normally responsive only to the lower waveband. To receive the higher-frequency waveband the lower-frequency band antenna is disconnected and an antenna responding to the higher-frequency waveband and to the unmodulated wave connected to a frequency changer, without local oscillator, whose output is switched to the input of the R.F. or I.F. stages depending on the frequency difference. A local oscillator for reducing the higherfrequency band is thus unnecessary.
Patent GB-658518-A (GB)
Title: Improvements in frequency-divider circuit-arrangements
IPC: H04J1/06
Filed: 1948-05-14
Abstract: 658,518. Frequency dividing circuits. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. May 14, 1948, No. 13234. Convention date, May 19, 1947. [Class 40 (vi)] A circuit of the type in which a lower frequency is self-generated from a higher frequency by modulating the latter with a harmonic derived from the lower frequency includes a selective amplifier which may also serve to generate the lower frequency or, alternatively, the harmonic used for modulation. The higher frequency, from a source 6, is applied to a modulator 7 from the output of which the lower frequency is selected by means of a tuned amplifier 9. The requisite harmonic is derived from the amplifier output by a harmonic generator 4 and selective filter 5 which feeds the modulator 7. Such arrangements are not always self-starting and accordingly regeneration is introduced into the amplifier 9, the anode and grid circuits being back-coupled by a coil 10 coupled to the tuned circuit 8, so that it is initially self-oscillatory and generates the lower frequency when the arrangement is switched on. In the presence of an output rectifier network 15 energizes a relay 14 which introduces resistance 12 into the cathode circuit of the amplifier; -the gain is thereby so reduced by negative feed-back as to inhibit self-oscillation, and the frequencydividing circuit takes up normal operation. The contacts of a further relay 13 are connected in series with those of the relay 14, the relay 13 being energized from the source 6 over rectifiers 16 so as to prevent the amplifier 9 from reverting to the self-oscillatory state if the source 6 is switched off. Specification 633,369 is referred to. The Specification as open to inspection under Sect. 91 comprises also an alternative arrangement, Fig. 3 (not shown), in which the resistance 12 and relays 13, 14 are dispensed with, the gain of the amplifier being suitably reduced when an output is present by means of an increase in grid bias derived from a rectifier coupled to the output circuit. This subject-matter does not appear in the Specification as accepted.
Patent GB-133481-A (GB)
IPC: F16M1/00
Abstract: 133,481. Waern, J. D. Oct. 23, 1918. Hangers, brackets, and pedestals.-A hanger or pedestal bearing for shafts consists of a block 23, Fig. 1, and feet 2 cast on to supporting-legs 8 of wrought iron or steel, which are placed in the mould together with a tie-bar 6 and studs 31 to fix the cap 33, which is cast separately. Openings 17, 18 are formed in the castings 23, 33 to receiving adjusting-screws and nuts. Fig. 6 shows a pedestal bearing made in a similar manner and consisting of twin legs 43 and bars 45, 52 connected by cast junction blocks 44, 53. A thrust block 46 is cast on the bars 45.
Patent GB-416599-A (GB)
Title: Improvements in the manufacture and production of cyanuric acid
Filed: 1933-05-08
Abstract: Cyanuric acid is made by heating to above about 250 DEG  C. a chloride obtainable from carbamic acid chloride by splitting off hydrogen chloride and condensation, such as allophanic acid or biuret carboxylic acid chloride or mixtures thereof which may contain more highly condensed acid chlorides or undecomposed carbamic acid chloride.  The splitting off of hydrogen chloride and condensation takes place at ordinary temperature, but is accelerated by heating, for example, to 30--100 DEG  C.  According to examples: (1) Allophanic acid chloride is heated at 290 DEG  C. for several hours. (2) Biuret carboxylic acid chloride, obtained by heating carbamic acid chloride at 80 DEG  C., is heated at 300 DEG  C. The cyanuric acid may be sublimed or crystallized.  (3) A solution of carbamic acid chloride in benzene is refluxed for 8 hours at 35 DEG  C.  The product, mainly allophanic acid chloride, is filtered and heated at about 300 DEG  C. for several hours.  (4) A solution of carbamic acid chloride in benzene is heated in a crucible for 8 hours at 35 DEG C., the temperature then being raised gradually to 300 DEG  C. and heating continued for several hours.ALSO:Acid chlorides such as allophanic acid or biuret carboxylic acid chloride, or mixtures thereof which may contain more highly condensed acid chlorides, are obtained from carbamic acid chloride by splitting off hydrogen chloride and condensation.  The reaction takes place at ordinary temperature but is accelerated by heating for example to 30--100 DEG C.  According to examples, biuret carboxylic acid chloride is obtained by heating carbamic acid chloride at 80 DEG  C.; a solution of carbamic acid chloride in benzene is refluxed for 8 hours at 35 DEG  C., the product being mainly allophanic acid chloride.
Patent GB-686328-A (GB)
Title: Improvements in devices for delivering measured quantities of liquids
Inventor: COUGHTRIE OLIVER
IPC: B67D7/16
Filed: 1950-05-26
Abstract: 686,328. Delivering measured quantities of liquids, THERMOCONTROL INSTALLATIONS CO., Ltd. May 28, 1951 [May 26, 1950; Sept. 4, 1950]. Nos. 13370/50 and 21790/50. Class 106 (v). A device for delivering a measured quantity of liquid comprises a hollow stem 4 fitted in an inverted bottle or other container by a cork 5, a port or ports 12 in the stem, a container 3 slidable on the stem and having a removable partition 34 and a depending sleeve 9, and a discharge valve formed by the nozzle 32 of the container and the bottom of the stem. In the normal position of the container, liquid flows through the ports 12 into the measuring chamber below the partition and also collects above the partition until it covers the ports, the air displaced passing through a vent pipe 35. If the pressure in the bottle should rise owing to a rise in temperature, some additional liquid may flow into the expansion chamber through the vent pipe and collect above the partition. To discharge the measuring chamber, a lever 19 pivoted on a holder clamped to the stem at 6 is moved sideways by the receptacle and, through pins 23 engaged by a forked member 22, the container is moved downwards so that the discharge valve is opened, the ports 12 are shrouded by the sleeve 9 and a recess 25 and port 24 are uncovered so that air may enter from outside. The liquid above the partition is trapped, since the partition is a close fit on the stem, but, on return of the container to the charging position, it mingles with the new charge entering through the ports 12 and it is therefore not static but is changed each time the device is operated. The discharge valve may have a cork seat 41 fitted as shown or the cork seat may be located some distance within the stem and seal against the top of a tubular element formed within. the nozzle 32 and providing an annular recess to accommodate the end of the stem. The partition may be shaped as shown or may comprise a thin-walled shell with a concave upper face and depending flanges to fit the container and the stem. To vary the amount of liquid measured, the vent pipe may be adjustable in the partition and, to improve the liquid and air flows, the ports 12 are preferably on opposite sides of the stem and the latter is divided into two by a strip 11. The container, stem and partition may be made of transparent plastic.
Patent GB-511805-A (GB)
Title: Improvements in electrodes of electrolytic condensers
IPC: H01G9/052
Filed: 1938-05-05
Abstract: 511,805. Electrolytic condensers. FANSTEEL METALLURGICAL CORPORATION. May 5, 1938, No. 13397. Convention date, May 5, 1937. Drawings to Specification. [Class 37] An electrode comprises a self-supporting uniformly homogenous body of fine particles of tantalum, niobium or an alloy of tantalum and niobium sintered together, preferably after having been moulded to shape under pressure The glaze may be removed from the surface in an alkaline bath. A wire or foraminous metallic screen may act as support for the otherwise selfsupporting body. Specification 492,060 is referred to.
Patent GB-134767-A (GB)
IPC: F02M67/00
Abstract: 134,767. Logan, A. May 6, 1919. Two-stroke-cycle engines, cylinders, arrangement of ports in; pumps, relieving pressure in..- Charges are ignited in a cylinder A in which a portion of the burnt gases of each charge is retained and compressed into a chamber E to which is delivered a charge of combustible mixture by a pump B. A refractory and heat-insulating lining E<1> is fitted to the interior of the chamber E. The pump B has a relief port B<4> and an inlet port at B<2>. Charges are delivered to the chamber E through non-return valves E<3>. The expansion cylinder has two rows of piston-controlled ports. one row being controlled further by a mechanically-actuated valve D.
Patent GB-578539-A (GB)
Title: Improvements relating to babies' rattles
IPC: A63H5/00
Filed: 1944-07-14
Abstract: 578,539. Rattles. PAGE, H. H. F. July 14, 1944, No. 13495. [Classes 132 (i) and 132 (iii)] A light, washable rattle of dumb-bell shape comprises a hollow body of synthetic resin or other suitable material moulded in two complementary halves 1, 2. One half 1,. has a peripheral recess 3 and the other a peripheral rim 4 which co-operate when the two parts are secured together by a suitable adhesive. Solid or hollow balls 5 are inserted before securing the two parts and are of suitable size to be capable of moving freely between the two chambers 6 by way of the passage 7, the latter waist portion being formed on the outside with annular ribs 8 to improve the grip. Preferably, the rattles are made in pairs, one of each pair having a different sound from the other and being of a different colour.
Patent GB-354199-A (GB)
Title: Improvements in the manufacture of aliphatic anhydrides
IPC: C07C51/56
Filed: 1930-05-02
Abstract: Acetic and other aliphatic anhydrides.-In the production of acetic and other aliphatic anhydrides by heating the vapour of the corresponding acid and treating the vapour with a solvent or solvent mixture of high boiling-point as described in the parent Specification, phenol ethers other than anisol and phenetol are employed as the solvents.  Suitable ethers are the methyl and ethyl ethers of a  and b  naphthol, the paratolyl, propyl, isopropyl, phenyl, and benzyl ethers of b -naphthol, the cresyl ethers of the cresols, and phenyl ether, and they may be used alone or in admixture with one another or with any of the solvents mentioned in the parent Specification.  Preferably such ethers are employed as are liquid at the temperatures used, but ethers of higher melting-point may also be employed; or vapour of the ether may be mixed with the reaction vapour, the mixture being then cooled to condense the anhydride above the boiling-point of water. Preferably the liquid ether is circulated between the absorption zone and a zone of higher temperature for the expulsion of the anhydride.  The decomposition of the acid may be effected in presence or absence of catalysts in any suitable manner, for instance by passing through tubes of copper, fireclay, fused silica, or "staybrite" and when catalysts are employed they may be any of those specified in Specifications 257,968, 280,972, 312,733, 313,418, 314,132, 314,555, 317,907, 318,662, 318,663, 318,664, and 336,960, [all in Class 2 (iii), Dyes &c.].  The acid employed may be concentrated or dilute, for instance the waste acid from acetylation processes.
Patent GB-349266-A (GB)
Title: Improvements in furnace roofs
IPC: F27D1/12
Filed: 1930-05-02
Abstract: 349,266. Furnace roofs. RÍMER, H., 19, Engerstrasse, Dusseldorf, and KARRENBERG, G., 51, Makkabaerstrasse, Cologne, both in Germany. May 2, 1930, No. 13585. [Class 51 (i).] In a suspended roof for furnaces consisting of hollow iron bars suspended from main girders and carrying stone blocks the hollow bars communicate at both ends with air conduits disposed outside the furnace chamber. As shown in Fig. 1, the hollows bars 4 supporting blocks 3 of the roof are supplied with air from conduits 11, 12 in the furnace wall and the air is delivered from pockets S formed in the bars to a conduit formed by beams 9, 10. In a modification the upper ends of the bars 4 are bent forwardly at right-angles to form a hook to engage with the girders 9, 10 and lead into a conduit while the flues 11 lead to the atmosphere. Fig. 4 shows a further modification in which the upper ends of the bars 4 are provided with a bevelled portion 21 engaging with a corresponding bearing 20 of an air conduit 18, supported on the girder 19. In a further modification air is supplied to the bars 4 by air supply pipes which extend downwards outside the furnace wall while their upper ends communicate with an air conduit or with the atmosphere. The air may be circulated through the bars 4 and air conduits by a blower.
Patent GB-175928-A (GB)
Title: Means for utilizing wave energy
IPC: F03B13/20
Filed: 1921-05-17
Abstract: 175,928. Parsons, O. H. May 17, 1921. Wave energy, utilizing.-Mechanism whereby the rolling motion of a boat &c. may be utilized for generating power for propelling a boat comprises three parallel A-shaped frames connected by a spacing-bar 15 and supporting a drive-shaft 16, countershaft 17, 18, and a power shaft 19. A rocker lever 20 has a weighted bucket 23 and a rocker head comprising arms 25 linked so as to rotate the shafts 17. The power shaft 19 is geared to the shaft 17 and has a flywheel and drive-pulley for imparting power to generators &c. Clutches in the gear-wheels 29 provide for rotation in one direction only, and comprise keyed discs with the edges cut away to form cam-surfaces. The discs are disposed in recesses in the gearwheels 29, and rollers are fitted between the camsurfaces and the inner surfaces of the gear-wheels.
Patent GB-198374-A (GB)
Title: Process for purifying and decolourising sugar solutions
IPC: C13B20/12
Filed: 1923-05-26
Abstract: The Specification as open to inspection under Sect. 91 (3) (a) describes the application to the treatment of glycerine, oils, fats, benzine and petroleum of a process for purifying liquids which consists in treating the liquid simultaneously or successively with externally precipitated lime salts and with some other purifying medium such as decolorizing carbon, bone charcoal, blood charcoal, kieselguhr, fuller's earth, kaolin, or silicic acid.  Liquid to which these materials have been added may be heated and the materials subsequently removed by filtration.  The treatment may be followed by a chemical treatment, for example treatment with lime and saturation with carbonic or sulphurous acid.  Specification 183,485, [Class 46, Filtering &c.], is referred to.  The application to the treatment of the liquids mentioned above is not described in the Specification as accepted.
Patent GB-1460491-A (GB)
Title: Formic acid synthesis by alkyl formate hydrolysis
IPC: C07C51/09
Filed: 1974-03-28
Abstract: 1460491 Formic acid synthesis by hydrolysis of alkyl formate BETHLEHEM STEEL CORP 28 March 1974 [6 April 1973] 13901/74 Heading C2C  Formic acid is prepared by hydrolysing a (C 1 -C 4 ) alkyl formate by means of water, whilst maintaining a sufficient quantity of a (C 1 -C 4 ) alkyl alcohol in the reaction mixture to establish a homogeneous liquid phase at the reaction temperature which is suitably from 25 to 150 C. Preferably, formic acid is included in the reaction mixture prior to the commencement of the hydrolysis reaction.