baber/WOPTO huggingface dataset:
Patent GB-594808-A (GB)
Title: Improvements in or relating to chucks
IPC: B23B31/12
Filed: 1945-06-05
Abstract: 594,808. Chucks. NEWTON, E. P. (Jacobs Manufacturing Co.). June 5, 1945, No. 14189. [Class 83 (iii)] In chucks comprising collets interposed between a thrust plug and an adjustable threaded member having bevel surfaces which compress the collets into initial contact with the article after which the thrust plug is operated by a rotating cam, the cam is formed by the intermediate portion of a transverse pin forming annular shoulders to prevent lateral movement of the pin. The collets 51 are closed by the bevelled bore of an externallythreaded member 30 being screwed into the body 10, a concentrically disposed plug 20 slidable in the body forming an abutment against axial movement of the jaws. The reduced end of the plunger bears against an eccentric intermediate portion 42 of a pin 40 transversely disposed in the body at the rear of the plunger. The pin is rotated in the body by a wrench engaging a suitable recess, whereby the eccentric motion of the pin urges the plunger against the jaws to cause them to grip still more firmly. The pin 40 is prevented from axial displacement by the eccentric portion being of less diameter than the cylindrical ends forming continuous shoulders between which the reduced end of the plunger engages. The bevel closing member 30 may bo threaded over the body and the plunger may be conically bored to receive tapered jaws. A further modification shows the plunger bored so that stock-bar may be passed through the chuck, in which case the pin 40 is offset to clear the bore. The eccentric portion of the pin may, in any construction, be of spiral form, whilst the jaws are interconnected by a resilient material such as oil-resisting synthetic rubber as at 52.
Patent GB-611852-A (GB)
Title: Improvements in or relating to the production of aqueous dispersions
IPC: C09K23/00
Filed: 1946-05-10
Abstract: Polythene or an ethylene interpolymer is mechanically worked with a water-soluble, partially or completely hydrolysed polyvinyl ester or hydrolysed interpolymer of a vinyl ester until a homogeneous blend is obtained and the working is continued in the presence of water until a polymer-in-water dispersion results. The polyvinyl ester is preferably the acetate which may be copolymerized with a vinyl ester of other aliphatic monocarboxylic acids such as stearic and oleic acids or with ethylene or vinyl fluoride.  The mixing is effected in a device such as a Banbury mill which can be heated to render the ethylene polymer plastic while working.  Interpolymers of ethylene with tetrafluoroethylene and with vinyl chloride are specified. Specifications 515,582 and 572,695 are referred to.
Patent GB-1353298-A (GB)
Title: Absorption process for gas separation
IPC: B01D53/047
Filed: 1972-03-27
Abstract: 1353298 Separating gases T TAMURA 27 March 1972 [27 March 1971] 14307/72 Heading B1L  In separating gas mixtures by preferentialabsorption and recovering under reduced pressure the purity of the more readily absorbedcomponent is enhanced by purging prior to recovery with a gas of almost the same composition as that it is desired to recover. A number of multicolumn systems are described as is a special absorbent which is also. described in Specification 1,163,952.
Patent GB-475647-A (GB)
Title: Improvements in or relating to the manufacture of thiones and selenones
IPC: C07D277/72
Filed: 1936-05-20
Abstract: N-alkylated m -thiones and selenones of organic bases containing 5-membered heterocyclic nitrogen rings are made by heating a quaternary salt of the corresponding thioether or selenoether with a weak organic base.  The quaternary salts may be made by alkylating the corresponding m -mercaptan or selenomercaptan and treating the resulting ethers with alkyl salts.  Heterocyclic compounds specified are thiazoles, thiazolines, oxazoles, oxazolines, selenazoles, selenazolines, indolenines, thiodiazoles and the corresponding polycyclic compounds such as benzthiazoles and naphthathiazoles.  In the examples: (1) N-methyldihydrobenzoxazole-1-thione is made by treating 1-mercaptobenzoxazole (from o-aminophenol and carbon - disulphide) with dimethylsulphate, heating with methyl - p-toluenesulphonate and then refluxing with pyridine; (2) N-ethyldihydrobenzoxazole-1-thione is made as in (1) using ethyl bromide instead of dimethylsulphate and ethyl-p-toluene sulphonate; (3) 2 : 4 : 5-trimethyldihydrobenzoxazole-1-thione is made by treating 1 - mercapto - 4 : 5 - dimethylbenzoxazole (from 5 - amino - 4 - hydroxy - 1 : 2 - dimethylbenzene and carbon disulphide) as in (1); (4) 2-ethyl-4 : 5-dimethyldihydrobenzoxazole-1-thione is made from 1-mercapto - 4 : 5 - dimethylbenzoxazole as in (2); (5) N-methyldihydrobenzthiazole-1-thione is made from 1-mercaptobenzthiazole, as in (1); (6) N-ethyldihydrobenzthiazole-1-thione is made from 1-mercaptobenzthiazole as in (2); (7) N-methyldihydrobenzthiazole-1-thione is made by heating 1-methyl-mercaptobenzthiazole with methyl iodide and refluxing with pyridine; (8) N-methyldihydrobenzoxazole-1-thione is made by heating 1-methylmercaptobenzoxazole with methylsulphate and refluxing with pyridine; (9) N-methyl-4 : 5-dimethoxydihydrobenzselenazole1-thione is made by treating 1-methylmercapto-4 : 5-dimethoxybenzselenazole with methyl-p-toluene sulphonate and refluxing with pyridine; (10) N-methyl-3 : 4-benzdihydrobenzthiazole-1-thione is similarly made from 1-methylmercapto-3 : 4-benzbenzthiazole; (11) N-methyl-5 : 6 - benzdihydrobenzthiazole - 1 - thione is similarly made from 1-methylmercapto-5 : 6-benzbenzthiazole; (12) N-ethyl-5 : 6-benzdihydrobenzthiazole-1-thione is made by heating 1-ethylmercapto-5 : 6-benzbenzthiazole with ethyl-p-toluene sulphonate and refluxing with pyridine; (13) 1-selenomercaptobenzthiazole (from selenourea and 1-chlorbenzthiazole) is treated with methyl sulphate, the resulting ether heated with methyl-p-toluene sulphonate and the product obtained refluxed with pyridine.  Picoline is also specified. Specification 424,559 is referred to.  1-Methylmercapto-4 : 5-dimethoxybenzselenazole is made by refluxing 4-bromo-5-nitroveratrole with sodium selenide and selenium in alcohol to form 4 : 5 : 41 : 51-tetramethoxy-2 : 21-dinitrodiphenyl diselenide, reducing this with sodium hydrosulphite, heating with alcohol, carbon disulphide and sodium hydrosulphide and treating the 1-mercapto-4 : 5-dimethoxybenzselenazole thus obtained with methyl sulphate.
Patent GB-163698-A (GB)
Title: Improvements in readily detachable electric couplings
IPC: H01R13/02
Filed: 1921-05-23
Abstract: 163,698. Schõfer, W. May 23, 1921. Contacts. - A contact is formed of a strip 4 bent to U- form, each of the arms being undulated. Such a contact may be used with another 5 similarly formed or with a single blade having straight or undulated sides.
Patent GB-129042-A (GB)
Title: Improvements in or relating to Explosive Grenades.
Inventor: DANIELS LESLIE ARCHIBALD
IPC: F42C15/23
Filed: 1917-10-04
Abstract: 129,042. Daniels, L. A., and Gardiner, C. A. P. Oct. 4, 1917. Projectiles; projectile fuses.-Relates to grenades, such as that described in Specification 124,837, in which a firing-pin is engaged by a shock-released retaining-catch loaded at one side, and consists of detail improvements. According to the invention, (1) the catch F is provided with a notch f<2>, Figs. 1 and 4<a>, in which the head C<1> of the firing-pin engages, the ends of the notch forming fulcra around which the catch can turn; (2) the safety-pin D normally abutting against the catch has a pin extension d passing through the catch and the firing-pin; (3) an auxiliary safetypin E normally supports the free loaded side of the catch; (4) two locking-pins G, G', Figs. 1 and 2, which may be interconnected, are provided, the pin G securing the outer end of the tape B which is wound round the grenade body so as to hold the safety-pins E, D in position, while the pin G<1> engages the safety-pin D; (5) the outer end of the safety-pin D is provided with; a plate d<2>, through which a projection b<1> on ,a member b, Fig. 8, can pass, the part b being a doubled plate which is frictionally secured to the tape, the projection b<1> being adapted to engage with the pin G, previously referred to. The inner end of the tape is secured to the grenade by means of a, keyholeslotted plate, so as to trail behind it when unwound. The detonator L rests on a soft pad a<3> in a screwed cap a<2> which closes the end of the tube containing the detonator. The upper end of the grenade is permanently closed by a dome H.
Patent GB-317717-A (GB)
Title: Improvements in or relating to electrical insulating materials, more particularly liquid electrical insulating materials, and processes for the manufacture thereof
IPC: H01B3/20
Filed: 1928-05-16
Abstract: 317,717. Berry, Wiggins, &. Co., Ltd., and Holmes, H. H. May 16, 1928. Insullation.-For the production of insulating or filling material having a specific gravity greater than that of water and chemical and physical properties by which admission of water thereto or emulsification therewith is avoided, the specific gravity of a liquid or semi-liquid material is increased either (1) by the addition or admixture of a solution of a metallic salt of an organic acid in an organic solvent such for example as a hydrocarbon or derivative, (e.g. barium oleate or barium resinate in excess of oleic acid or linoleic acid); or (2) by the addition or admixture of a solution of halogenated waxes or naphthalene in suitable mineral oils, (e.g. 5 parts of halogenated naphthalene in 20 parts of resin oil). Particular examples and methods of preparation are given in the Specification. In the first Provisional Specification an alternative insulating composition may be made by raising the specific gravity of insulating oils by halogenating them.
Patent GB-1064822-A (GB)
Title: Demodulation circuits for colour television signals
IPC: H04N11/16
Filed: 1964-04-08
Abstract: 1,064,822. Colour television. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. April S, 1964 [April 10, 1963], No. 14422/64. Heading H4F. N.T.S.C.-type signals modified by phase reversal of the I<SP>1</SP> sub-carrier component on alternate lines, i.e. PAL operation, are received at terminal 1, Fig. 1, and applied to adders 5 and 6 by way of a direct path 7, a one-lineduration delay path 2, 3, 4 and a phase reversal path 8 whereby the I<SP>1</SP> and Q<SP>1</SP> sub-carrier components are separated as illustrated by. the vector diagrams in Fig. 2. The line frequency I<SP>1</SP> signal phase reversals are removed by a switching circuit 20 operated by pulse train 14, whilst the Q<SP>1</SP> signal is brought into phase with the I<SP>1</SP> signal by 90 degrees phase shifter 15. The two signals are then combined in a combining circuit 19, comprising a centre-tapped transformer and a potentiometer network, in accordance with the equations 1.189 I<SP>1</SP>+ 1.114 Q<SP>1</SP> and - 0À467 1<SP>1</SP>+1À659 Q<SP>1</SP> to produce sub-carrier signals X<SP>1</SP> and Z<SP>1</SP> which are synchronously detected in circuit 21. The detector circuit is supplied with a signal at sub-carrier frequency obtained from an oscillator 18. In another arrangement, Fig. 5 (not shown), in which the circuit details are shown more fully, the detection is effected in a grid leak detection circuit comprised of three triodes (which also functions as a blanking circuit and amatrix) to derive the colour difference signals R<SP>1</SP> - Y<SP>1</SP>, B<SP>1</SP> - Y<SP>1</SP> and G<SP>1</SP> - Y<SP>1</SP>. According to a modification, Fig. 3 - (not shown), the combining circuit is arranged to produce three outputs which are formulated according to the equations I<SP>1</SP>+2À37 Q<SP>1</SP>, I<SP>1</SP>+0À65 Q<SP>1</SP> and I<SP>1</SP> - 1À54 Q<SP>1</SP> which correspond respectively to G<SP>1</SP> - Y<SP>1</SP>, R<SP>1</SP> - Y<SP>1</SP> and - B<SP>1</SP> + Y<SP>1</SP>. Other arrangements of combining circuit are described with reference to Fig. 4 (not shown), and elsewhere for formulating X, Z and colour-difference signals from I and Q signals. Reference is also made (without giving details) to an arrangement for formulating I and Q signals where the quadrature modulation component of the original sub-carrier signal are R<SP>1</SP> - Y<SP>1</SP> and B<SP>1</SP> - Y<SP>1</SP>.
Patent GB-560795-A (GB)
Title: Improvements in or relating to castor wheels and the like
IPC: B60B33/00
Filed: 1942-10-16
Abstract: 560,795. Wheel tyres. MARSTRAND, O. J. Oct. 16, 1942, No. 14494. [Class 144 (ii)] A tyre adapted to prevent shimmy in the castor wheels of aircraft has a deep groove 4 between flat side treads 3 which may be continuous, interrupted or patterned. The groove is at least as wide as the tread portions. The construction may be employed in solid tyres; as shown in Fig. 3. Specification 23668/07, [Class 144], is referred to.
Patent GB-579174-A (GB)
Title: Improvements relating to thermal electric switches for refrigerator control
IPC: F25D29/00
Filed: 1943-09-06
Abstract: 579,174. Thermal switches ; switches, partly electromagnetic. BRITISH THOMSONHOUSTON CO., Ltd. Sept. 6, 1943, No. 14516. Convention date, Sept. 5, 1942. [Class 38 (v)] A refrigeratorcontrol switch has separate magnetic means operated by push-buttons for effecting quick-freez ing and defrosting A movable contact 12 is mounted on the end of a leaf spring 36 riveted to a magnetic plate 16 on a canti lever spring 18 which is secured to a bracket 17 and aper tured to receive an operating lever 19 one of which bears on bracket 17 while the other abuts on a spring 25. A bellows 26 containing a liquid engages a threaded shaft 27 which is adjustable in a threaded boss 28 on lever 19 by means of a shaft 32 and gears 29, 31. Snap-action opening and closing movements are provided by a permanent magnet 45 co-operating with magnetic plate 16, the hooked end 49 of which is engageable by the hooked end of a push-button 47, subject to the friction drag of a spring 51, for manually opening the switch and releasing it for control by the bellows. The quick-freeze device comprises a fixed permanent magnet 65 and a keeper 67 which is depressible by pushbutton 68 against a spring 71, so as to bring a lug 73 against an adjustable stop 74 on member 16 to force the switch into closed position where it is held by the magnet 65. At a temperature beyond the lower limit, spring 18 becomes sufficiently tensioned to open the switch. For defrosting, a keeper 57 on a similar push-button 58 is moved against a permanent magnet 55 on member 16 and then released, so positively opening the switch and retaining it open until, at a given temperature beyond the upper limit, spring 18 is sufficiently stressed by the bellows to reclose the switch. The spring 61 assists the opening spring 62 by bearing on the shoulder 60 of the press-button 58, and spring 62 acts as a resilient stop for the button if the switchmember is already open. By arranging for the button 58 to be held depressed in the switchopen position, the defrosting cycle can be made continuous. The fixed contact 39 is mounted on a leaf spring 40 and adjustable by a screw 42.
Patent GB-651547-A (GB)
Title: Improvements in or relating to nail-inserting machines
IPC: A43D69/02
Filed: 1948-05-29
Abstract: 651,547. Nailing. BRITISH UNITED SHOE MACHINERY CO., Ltd., ELLIOTT, H. E., and BARTON, G. C. May 29, 1948, No. 14546. [Class 89(iii)] In a nailing machine having means for feeding a workpiece step by step to a positively-operated driver and an abutment against which the workpiece is held by a work support during driving of a nail, means is provided for moving the workpiece first yieldingly towards the abutment and then positively further a predetermined distance and for locking the worksupport against movement away from the abutment while a nail is being driven. In a machine as decribed in Specifications 1494/93 and 4471/03, [both in Class 89], in which the work is supported in a horn carried by a post 15 and is fed by an awl, the horn is raised to prtss the work against a fixed abutment by depression of a treadle 121 which acts through a cam 111 pivoted on a bell-crank lever 107, a lever 97, a slide 33, locking plates 25 and toggle links 21, 19. The locking plates 25 interleaved with clamping plates 35 are mounted between thick end plates 39 within a housing 27, 29. One plate 39 is adjustable by a screw 43 and the other is actuated by an inverted toggle device comprising an arm 53 connected to a rod 47 on the plate 39 by a link 51. The lever 97 first rocks about its rear end 103 which is pivoted to the bellcrank lever 107, and after the work has engaged the fixed abutment rocks about its front end and a cam roll 95 therein raises a lever arm 89 and through an arm 85, a compression spring 81 on a rod 73, a lever 59 and a link 57, actuates the arm 53 so that the plates 25, 35 are locked together just prior to the highest part of the cam 111 becoming operative. The bell-crank lever 107 is controlled by a powerful spring 139 manually adjustable by bevel gears 145, 143 and a screw 141. After the locking of the plates 25, 35, the treadle trips a clutch to cause a nailing operation. To allow feeding of the work by the awl, the toggle 19, 21 is broken by a cam acting through a rod 185 adjustably connected to a bellcrank lever 177, and a link 173. The plates 25, 35 are unlocked for a short period by a cam acting through a rod 69 and a lever 67 on the lever 59, to allow the pressure on the work to be controlled by the spring 139 irrespective of the thickness thereof. The driver which, together with the awl, is mounted in a swinging head is positively operated by a crank pin. To prevent looseness due to wear of the parts, the swinging head carries a plate 189 (not shown) which co-operates with a recess 191 (not shown) in the machine frame.
Patent GB-216694-A (GB)
Title: Improvements in annealing, welding and the like furnaces
IPC: B21J17/00
Filed: 1923-06-02
Abstract: 216,694. Berger, J. June 2, 1923. No Patent granted (Sealing fee not paid). Ash-pans.-In a furnace for heating metal articles comprising a central fire-pan spaced from the enclosing casing 2 to form a peripheral downcast flue 3, the ash-pan is formed with ribs 11 which hold water supplied thereto from the container 12. Ashes, collecting.-An ash trap 14 is fitted on the flue 3. Draught, regulating.-Adjustable flaps 15 are fitted in the bottom wall of the casing 2 for regulating the draught through the furnace. Liquid and gaseous fuel fittings. - The firegrate may be replaced by a slab having a central opening for a burner nozzle which is positioned over the blast pipe 16 and a gas supply pipe 22.
Patent GB-1120320-A (GB)
Title: Extruders for visco-elastic plastics material
IPC: B29C48/47
Filed: 1966-04-01
Abstract: 1,120,320. Centripetal extrusion machines. E. I. VALYI. 1 April, 1966, No. 14590/66. Heading B5A. A centripetal extrusion moulding machine comprises a stator 10, a rotor 31 driven by a variable speed motor 36-38 and an axially reciprocable screw 16 rotated independently of rotor 31 by a variable speed motor 26-28. Plasticizable visco-elastic material is fed to space 34 from hopper 46 by a screw 48 and extrusion through nozzle 14 may be continuous or intermittent, e.g. for blow moulding, by allowing accumulation in chamber 12 followed by forward movement of screw 16 when hydraulic fluid is admitted to a piston and cylinder assembly 20, 21. Heaters 50 are provided.
Patent GB-1300874-A (GB)
Title: Sludge combustion
Inventor: THOMAS GUNTER
IPC: C02F11/06
Filed: 1971-05-12
Abstract: 1300874 Sludge incinerators METALLGESELLSCHAFT AG 12 May 1971 [14 May 1970] 14590/71 Heading F4B A multiple-bed furnace for burning clarifier sludge comprises a plurality of superposed hearths 22, a stirring arm 20 carrying stirring teeth 25 mounted above each hearth, and wherein the teeth are so shaped that their lower edges form an acute angle to the hearth. An opening through which the sludge is fed is near a collar 21 which surrounds a hollow shaft 19. The stirring teeth 25 scrape off the sludge and move it to a discharge edge 28 from whence the sludge falls through an opening 23 to the next lower bed. The furnace is adapted to comprise a drying zone, a burning zone, and a zone for cooling the ash. In operation, sludge is taken from a thickener 1 and is fed by a pump 2 through means 3 for removing coarse particles to a heater 5. The sludge enters a decanting centrifuge 6 where a flocculating agent, e.g. a polyelectrolyte is supplied through a pipe-line 14. The thickened sludge is fed by a pump 7 to the uppermost bed of the furnace 8 through a pipe-line 15 which is as smooth and straight as possible. Waste oil enters the furnace through conduit 17 and preheated air via conduit 16. The flue gas leaves the multiple-bed furnace through a pipeline and flows through a sensing station 4 and the sludge heater 5 into a flue gas purifier 10, which may consist of a wet scrubber. The purified flue gas is sucked by a blower 18 and forced into a chimney.
Patent GB-1362694-A (GB)
Title: Ship retarding system
IPC: B63H11/107
Filed: 1971-05-13
Abstract: 1362694 Steering ships SAMUEL WHITE & CO Ltd 2 May 1972 [13 May 1971] 14635/71 Heading B7V A ship retarding system includes means defining a forward facing mouth for receiving water into a duct and a discharge director flush with the hull bottom, the director leading from the duct and capable of directing discharge of the water forwardly of the ship. In a preferred embodiment the duct 13 contains a pump 15, driven by engine 18 through gear-box 17 and shaft 16, and a discharge director 22 having guide vanes 24 and rotatable by steering gear 26 through shaft 25, according to the required direction of discharge. The duct 13 is connected with two mouths 31 defined by ducts, Fig. 3, which are movable by hydraulic rams 34 to an inboard or outboard position. The mouths 31 have vertical or horizontal bars 38, 39. In a modification, Fig. 4 (not shown), the mouth comprises an opening in the forward facing portion of the bows and includes a butterfly type valve for opening or closing the duct. (For Figures see next page.)
Patent GB-569706-A (GB)
Title: Improved cloth drying unit
IPC: D06C3/00
Filed: 1943-09-07
Abstract: 569,706. Drying cloth. DALGLISH, M COOK. M. C., DALGLISH, J. (trading a DALGLISH & SONS, J.), and LAURIE, K. S Sept. 7, 1943, No. 14682. [Class 34 (i)] In a cloth-drying unit for use in stenters, heated air is blown on to the surface of the cloth 1 through openings in upper and lower boxes 5, 6 supplied by fans 11 with air which, after leaving the boxes, has passed outwards, over upper and lower heaters 15, 16 along the outer sides of the boxes, into spaces 18 forming hot-air reservoirs from which the fans draw. The heaters comprise steam tubes between headers. The openings in the bottom and top respectively of the boxes 5, 6 are transverse slots 8 formed by flanged plates 7 spaced apart, the flanges 20, 21 being inclined so that the openings are directed forwardly and rearwardly on either side of the plane containing the axes of the fans. In another form, the walls of the boxes 5, 6 extend respectively to the roof and floor of the casing 10, and the ducts 13 extend through those walls, the connections 9 being omitted. Two or more such drying units may be arranged end to end in a single casing. According to the Provisional Specification, the two boxes 5, 6 may each be supplied by a single fan.
Patent GB-128557-A (GB)
Title: Improvements in Intertwisted Net.
Inventor: YAMAMOTO TAKEJIRO
IPC: D04G1/00
Filed: 1919-06-11
Abstract: 128,557. Yamamoto, T. June 16, 1918, [Convention date]. Netting.-A net is composed of threads or cords each consisting of three strands, the ties being formed by interlacing the strands 1, 2, 3 of one thread with the strands 4, 5, 6 of the other, without knotting. as indicated.