baber/WOPTO huggingface dataset:
Patent GB-918115-A (GB)
Title: Improvements in or relating to safety lock mechanisms
IPC: A47C4/26
Filed: 1961-03-13
Abstract: 918,115. Seats. CRESCENT, H. March 13, 1961 [March 14, 1960], No. 9146/61. Class 52 (2). An automatic locking safety device for convertible seats of the type comprising a seat proper 18, an X-shaped leg system wherein the upper ends of the rear legs are articulated to the forward part of the seating surface and a backrest solid with and in extension of the front legs, notches 2 in the upper part of the front legs, a transverse rod 6 arrangement solid with the rear part of the seating surface each end of which is capable of being engaged in one of the notches 2 of each front leg according to the height and inclination desired for the front seat, comprises locking means for automatically locking the rod 6 in the notches 2 when the seat is in the position of use with its front legs inclined towards the rear, and automatically unlocking the rod 6 in order to be able to extract it from the notches 2 when the seat is tipped forward and when its front legs are inclined forward. As shown in Figs. 4 and 6 the device comprises an angle iron 1 having notches 2 and locking between its flanges the rear part of the upper part of the front legs 15. A catch 5 is pivoted on a horizontal spindle 4 above each of the notches 2, the length of the catches 5 and the dimensions of the notches 2 being such that the catches allow the rod 6 to enter the notches but prevent it from leaving except when the seat is in the position in which the legs are inclined forwards. In a modification shown in Fig. 8 an element 1 which may be rigid with the legs 15 has a groove 7 in which lozengeshaped catches 8 pivot about pins 16 above each notch 2. In a further modification shown in Fig. 9 or bar 12 rigid with the rear of the seat proper has secured to it a lug 11 having a central slot 13. A catch 10 having a beak 14 is mounted in the slot 13 on a pin 9. The beak 14 prevents the lug 11 from escaping from the opening 19 in the leg 15. To release the lug the front legs 15 are tilted forwards.
Patent GB-848132-A (GB)
Title: Improved anion-exchange process for uranium recovery
Inventor: AVESTON JOHN
IPC: C22B60/02
Filed: 1958-03-21
Abstract: In the recovery of uranium from aqueous solution, for example uranium sulphate, an anion exchange material is employed in the form of tubes through which the solution is passed.  The solution may also be passed over the exterior surfaces of the tubes.  The process is applicable to the recovery of uranium from aqueous pulps.  The flow may be turbulent.  The anion exchange material may be derived from a polymer of vinyl chloride, for example polyvinyl chloride or a copolymer of vinyl chloride and another substance such as vinyl acetate or vinylidene chloride, by replacing at least 1% of the combined chlorine atoms with basic-nitrogen-containing groups, for example by reacting with ammonia, or a primary, secondary, or tertiary aliphatic or alicyclic amine, for example monoethylamine, diethylamine, trimethylamine, or cyclohexylamine, or with a primary or secondary aromatic amine, or with a polyamine, in which last case a certain degree of cross-linking will occur.  Suitable polyamines include ethylene diamine, propylene diamine, hexamethylene diamine, diethylene triamine and tetraethylene pentamine.  The anion exchange material may include both strongly and weakly basic exchange groups. The adsorbed uranium may be eluted from the tubes by means of an ammonium nitrate solution acidified with nitric acid.  Specification 836,155 is referred to.
Patent GB-636722-A (GB)
Title: A method and a device for extracting cores of soil from the ground
IPC: E21B25/06
Filed: 1948-04-01
Abstract: 636,722. Well boring; core extractors. KJELLMAN, W., and KALLSTENIUS, T. K. E. April 1, 1948, No. 9236. Convention date, April 2, 1947. [Class 85] In order to obtain an undisturbed specimen core from a borehole, there is situated within the wall 5, 10 of the borer a number of reels 7 of metal foil, one end of each reel being secured to a plunger 12 provided in the borer above the core so that, as the borer is forced downwards by a jack, the core is completely or partially encased in metal foil, thus substantially reducing adhesion to and friction between the core and the borer. The reels may be disposed within the wall of the borer to rotate about horizontal axes, or be arranged each in a horizontal plane concentrically with the core, and may be disposed in more than one horizontal plane. The plunger 12 is, during core-obtaining operations, maintained at a constant level below the surface either by rod or rope suspension. During lowering into the bore the plunger is locked within the borer, being freed therefrom by the rod or rope when it is desired to start obtaining the core.
Patent GB-846290-A (GB)
Title: Improvements in the manufacture of rubber
Inventor: HASTINGS JACK DOUGLAS
IPC: C08C4/00
Filed: 1957-03-21
Abstract: High-grade indiarubber in the form of discrete shreds is obtained from skim latex by treating the skim with soap, e.g. an alkali metal soap such as sodium laurate or palmitate or an ammonium salt of a fatty acid, coagulating the skim, preferably with magnesium chloride, reducing the coagulum to a finely divided state by milling, soaking the shreds so obtained first in acid, e.g. sulphuric acid, and then in an alkaline solution of a proteolytic enzyme, e.g. a solution of trypsin brought to a pH of 11-12 by addition of an aqueous solution of ammonia or sodium or potassium hydroxide, submitting the shreds to a second milling, washing, dusting with a lubricant, e.g. zinc or magnesium stearate, and drying.
Patent GB-1370333-A (GB)
Title: Apparatus for determining the position of the bounce of a ball  in relation to a predetermined playing area in a ball game
Inventor: SUPRAN L
IPC: A63B71/06
Filed: 1972-02-29
Abstract: 1370333 Electric couplings L D SUPRAN 29 Feb 1972 [3 March 1971] 9313/72 Divided out of 1370331 Heading H2E [Also in Division A6] The disclosure is similar to that in the parent Specification 1,370,331 with regard to the surface element to be used as tennis court area markings for example and the ball construction but the claims are directed to the surface element and there is disclosure of a detecting circuit which indicates which marking tape has been contacted by the ball.
Patent GB-644173-A (GB)
Title: Improvements in or relating to friction clutches and brakes for use in power transmission apparatus
Inventor: HOBBS HOWARD FREDERICK
IPC: F16D25/12
Filed: 1948-04-02
Abstract: 644,173. Friction clutches. HOBBS TRANSMISSION, Ltd. April 2, 1948, No. 9316. [Class 80(ii)] [Also in Group XXXIV] The friction-surfaces of a disc-clutch or brake, which are lubricated by oil supplied to their inner periphery either continuously or cut off during take-up and engagement, have slots 62, Fig. 3, which extend to the outer but not to the inner periphery, which latter remains unbroken so that, after engagement no further oil is admitted to the surfaces and that remaining passes radially outwards through the slots. Asbestos-based friction-facings 27, 28 may be carried either by the flywheel and presser-plates 16, 24, as shown, or by the driven disc 21. In the former case the driven disc is formed of three steel laminations, the outer 18, 19 being hard chromium faced and having the oil-escape slots 62 and flexibility promoting slots 63 which latter register with the inner ends of openended radial slots 60 in the centre lamination 20, which slots 60 provide passages for the continuous circulation of oil for cooling. Where the asbestos-based frictionfacings are carried by the driven disc 21, Fig. 4, not shown, the facings have radial grooves leading at their inner ends into an annular groove. The clutch is engaged, in opposition to springs 26, by oil-pressure supplied to a rubber-fabric diaphragm 29 by a gear-pump 41, Fig. 2, through a manual control-valve 47 and a centrifugally-balanced pressure-responsive valve 39, Fig. 1, which exhausts the diaphragm locally through ports 37, 38, when pressure is cut off by the manual valve. Between the diaphragm 29 and the presser-plate 24 is a resin-bonded fabric heat-insulator plate 32, and the contacting face of the presser-plate has interconnected grooves 33 for the circulation of cooling oil. Automatic clutch-release at engine-idle speeds is provided by a spring-loaded centrifugal valve 52, Fig. 2, having ports 55 which, at these speeds, register with a port 51 of the diaphragm-chamber to exhaust the latter into the clutch interior at 57, the ports moving out of alignment at higher speeds for clutch re-engagement. Specification 596,908 is referred to, and the Provisional Specification refers also to Specifications 628,499, [Group IX], 637,236, 637,251 and 637,269.
Patent GB-413444-A (GB)
Title: Improvements in or relating to vibratory screens
IPC: B07B1/34
Filed: 1933-03-28
Abstract: 413,444. Sifting - apparatus. PALMER, F. W., Foley View, Whitwell Terrace, and PALMER, W. F., 23, Tennyson Terrace, both in Crook, Co. Durham. March 28, 1933, No. 9356. [Class 117.] In screening-apparatus of the type in which a stationary, tensioned screening surface is vibrated by a rotary cam acting on a spring loaded pin coacting with a transverse bar bearing on the screening surface, the vibrating device consists of one or more transverse bars m, Fig. 3, lying under the screening surface a and supported at each end by spring loaded pins k reciprocated in guides k<1> by rotary cams b. The amplitude of vibration is adjusted by nuts m<1> and pointers may be provided on the bars m to indicate the extent of the adjustment. In double decker arrangements, the bars for vibrating the screens may be rigidly connected together or mounted for independent operation by the same pins k. In the construction described, the screening surface a is secured in a frame c, Fig. 1, by clamping bars a' and tensioning rods a<7>. The frame is pivotally supported at g on a wheeled under-carriage h and is secured in adjusted position by struts j. When two or more vibrating devices are used with the screening surface, the rotary cams bare intergeared and one is driven from a countershaft e.
Patent GB-350090-A (GB)
Title: Improvements in washing plungers for clothes
IPC: D06F15/00
Filed: 1930-03-24
Abstract: 350,090. Washing-machines. EBERHARD, E., 2, Waisenhausstrasse, Zurich, Switzerland. March 24, 1930, No. 9408. [A Specification was laid open to inspection under Sect. 91 of the Acts, April 3, 1930.] [Class 138 (ii).] A washing-dolly is provided with a flanged plate 6 which normally rests upon a perforated plate 5 secured in the dolly but which rises as the dolly is forced downwardly into the tub, the flange 7 then closing the apertures 11 in the sides of the bell portion of the dolly. The plate is formed in two parts, an outer annulus 6 on which the flange 7 is formed and a central disc 10 guided, as by pins 10<1>, for vertical movement relatively thereto. The disc may be connected to an open-topped box-like member 19, Fig. 1, having a perforated bottom, so that as the disc rises the member 19 fits over a chamber 18 having a perforated bottom 17. A valve disc 12 is housed within the chamber 18 and is connected by rods 13 to a float 14. The disc is of such diameter as not to cover all the perforations in the bottom 17. The air trapped in the bell chamber 3 cannot escape until after the float 14 rises, and since the perforations 11 are closed the washing fluid is caused to enter the bell from beneath. In a modification the float and associated air valve are replaced by an adjustable air valve formed in bores in the lower end of the handle and a water seal is formed between the outer rim of the disc 10 and the inner rim of the annulus 6. In another form, Fig. 3, which is power driven, three superimposed valves comprising flanged plates 6, 32, 32<1>, with relatively movable central discs 10, 33, 36 are linked together for simultaneous actuation by a float 42, the discs 33, 36 being provided with funnels 34, 40 for facilitating the discharge of air and the flow of washing fluid into all the chambers simultaneously. A, corrugated rubbing member 48 having perforations therein is provided.
Patent GB-1382075-A (GB)
Title: Methods for vacuum carburizing
IPC: C23C8/06
Filed: 1972-03-01
Abstract: 1382075 Vacuum carburizing C I HAYES Inc 1 March 1972 [23 June 1971] 9447/72 Heading C7U In a vacuum carburizing process, the articles to be carburized are placed in a chamber which is evacuated to 100Á Hg to remove unwanted gases, after which the temperature is raised to 1900F to remove surface contaminants. The articles are then subjected to carburizing pulses A, B, C, during which time CH 4  is fed in, reducing the vacuum to 50mm Hg 2  for two minutes, and then evacuated, followed by a five-minute diffusion period. After the desired number of pulses, N 2  is introduced and the temperature reduced to 1000F, followed by a grain-refining operation at 100Á Hg and 1550F. N2 is again introduced and the articles are oil quenched. The apparatus comprises a housing 14 having a chamber 16 with graphite heating elements, a pump 24 and a quench tank 18. CH 4  is fed in through a dryer 52 and through valves 74, 76, whose operation depends on pre-set values on the instruments 36, 42. N 2  is fed in through valves 86, 87.
Patent GB-576803-A (GB)
Title: Improvements in the manufacture of metal sheets
IPC: B07C5/34
Filed: 1944-05-19
Abstract: 576,803. Controlling apparatus by light. CARNEGIE-ILLINOIS STEEL CORPORATION. May 19, 1944, No. 9700. Convention date, Dec. 30, 1943. [Class 40 (iii)] [Also in Groups XXII and XXX] Apparatus for the manufacture of coated metal sheets (see Group XXII) includes a pinhole detector A comprising a light source 30 and a light sensitive-device 32. A continuous metal strip to be coated and cut into separate sheets is passed between the light source and the device 32. If light passes through a pin-hole in the strip on to the device 32, a deflector gate is operated through a time-delay relay 34 so that the final cut sheet containing the pin-hole will be deflected from the stream of finished sheets. At the output end of the apparatus the satisfactory sheets are passed one by one over a similar light sensitive device which operates a counter of known type.
Patent GB-622881-A (GB)
Title: Improvements in or relating to drawing-boards
IPC: B43L13/00
Filed: 1947-04-11
Abstract: 622,881. Drawing boards. MIROL, P. C. April 11, 1947, No. 9704. Convention date, May 4, 1946. [Class 11] A portable drawing board is provided with edge strips 2, 3 joined together and acting as guide members for a T-square, and a pair of flaps 4, 5 parallel to the strips and hinged on the back face of the board so that the board may be placed in two positions. Drawing instruments such as a rule or squares are held on the underside of the board by suitable abutments 9, 10 13, and the flaps 4, 5 (the flap 5 being grooved at 11) swing against the board and are retained by a catch 7. A flexible or rigid bag 17 to hold compasses, pencils &c. may be provided and also a handgrip.
Patent GB-415513-A (GB)
Title: An improved pouring device, more particularly intended for use with sauce and other bottles, cans or like containers
IPC: B67B7/48
Filed: 1933-03-31
Abstract: 415,513. Pouring devices for bottles, cans, &c. MAYHEW, A. H., 31, Ridge Hill, Golders Green, London. March 31, 1933, No. 9730. [Classes 66, 125 (i), and 125 (iii).] A pouring device for a bottle, can, or like container comprises a tube 22 slidably arranged in the neck of the bottle &c. or in an attachment thereto and guided therein at its rear end by a flange or the like 23 and spaced therefrom at its forward end by spaced projections 24. As shown the tube is disposed in an attachment 10 which has an hexagonal bore and is secured in a cork &c. ring 27 in the mouth of the bottle 19 by spring tongues on a tube 16 carried by a plug 14 screwed into the rear end of the attachment and, when the bottle is tilted, the tube slides forward in the attachment so that the contents are discharged at a point beyond the end thereof and, when the bottle is returned to the vertical position, drips are returned to the bottle through the apertures between the attachment and the projections 24 and flange 23. The end of the attachment may be closed by a stopper and, in the vertical. position, the flange 23 of the tube rests on spaced pips 21 on the forward end of the plug 14. The attachment may be plugged into the discharge orifice of a can or the like or may be formed therewith and the tube may terminate in a sharp edge to cut the final drip as the can, bottle &c. is returned to the vertical position ; a light spring may be positioned between the rear end of the tube and the plug 14. In a modification for attachment over the neck of a bottle, the projections 24 and pips 21 are provided on the pouring tube and the attachment has an apertured web which is downwardly flanged to take into the neck of the bottle ; the attachment is formed above the web with an annular channel giving access to the bottle for drips when the tube is seated by its pips on the web.
Patent GB-762395-A (GB)
Title: Improvements in or relating to distance measurement
IPC: G01B7/14
Filed: 1954-04-02
Abstract: 762,395. Electric measuring systems. WAYNE KERR LABORATORIES, Ltd., and CALVERT, R. April 4, 1955 [April 2, 1954], No. 9731/54. Class 40 (1). [Also in Group XXXVI] Apparatus for measuring the distance between a probe and an electrically conductive body comprises a self-balancing alternating- current electric bridge for determining the capacity between the probe and the body in which the bridge is balanced by adjusting the voltage applied to the capacity and in which means are provided for indicating the said voltage. The ratio arms of the bridge are formed by the two secondary windings 13, 14 of a transformer 11, the former winding feeding a variable amplifier 18, one output terminal of which is connected to one end of winding 14. The primary winding 12 is fed from an alternating current source. The capacitance 10 formed between the probe and the body is connected in series with a standard capacitance 15, which may be adjustable, across the other output terminal of amplifier 18 and the other end of winding 14. The primary winding 16 of a transformer 17 is connected between the junction between amplifier 18 and winding 14, and the junction between the two capacitances. The output of the secondary winding 19 is fed to a rectifier 20 providing a direct-current signal which adjusts the gain of amplifier 18 in the sense to balance the bridge if a resultant voltage across winding 16 indicates out-of-balance. The body may be a milling cutter to be tested for the height of its teeth, or other cyclically moving body. In this case the output of amplifier 18 is fed to one pair of deflector plates of a cathode-ray tube 22, the other pair being connected to a time base 25 synchronized with the cyclically moving body.
Patent GB-424535-A (GB)
Title: Improvements in processes of impregnating cellulosic fabrics
IPC: D06M15/423
Filed: 1934-03-28
Abstract: Cellulosic fabrics are impregnated with stiffening - compositions by treatment with soluble condensation products of formaldehyde and ammonium sulphides or ammonium sulphocyanide in the presence of urea, or condensation products of thioaldehydes and urea and polymerization of the absorbed compound by heat. Plastifying agents, wetting agents, colouring materials or fillers may be added.  It is stated that effects are also obtained by use of the condensation products of ammonium sulphide or sulphocyanide and formaldehyde without the presence of urea.  According to examples: (1) A viscose fabric is impregnated with an aqueous solution containing formaldehyde, urea, ammonium sulphide and ammonium sulphocyanide and the dried fabric passed over rollers heated to 130 DEG  C.  (2) A fabric is impregnated with an aqueous solution of formaldehyde, urea and ammonium sulphide.  (3) A fabric is impregnated in a solution of formaldehyde, urea, ammonium sulphide, sulphonated cetyl alcohol, ammonium sulphocyanide and Diamine sky blue FF.  (4) A fabric impregnated according to examples 1 and 2 is passed over smooth rollers heated to 100 DEG  C. and then over engraved rollers heated to 150 DEG  C.  (5) 35 parts of hydrogen sulphide are absorbed in 500 parts of 30 per cent formaldehyde containing 1 per cent calcium carbonate in suspension, part of the formaldehyde being thus converted into thioaldehyde.  200 parts urea, 700 water and 3 oxalic acid are added and the solution filtered.  The fabric is then impregnated, dried and the resin polymerized at 130 DEG  C. Specifications 258,357, [Class 42 (i)], 278,684, [Class 2 (ii)], 291,473, 291,474, and 304,900, [all in Class 42 (i)], are referred to.
Patent GB-584442-A (GB)
Title: Improvements relating to electric discharge lamps
IPC: H01J61/18
Filed: 1944-05-20
Abstract: 584,442. Discharge lamps. SIEMENS ELECTRIC LAMPS & SUPPLIES, Ltd., and ALDINGTON, J. N. May 20, 1944, No. 9786. [Class 39 (i)] An electric discharge lamp adapted to be operated by passage of currents of high intensity and short duration, comprises a quartz envelope, highly refractory metal electrodes, a filling of inert gas and metal more diflicultly vaporizable than mercury deposited on the inner surface of the envelope ; the lamp seals and the electrodes are designed to carry currents not less than ten times, preferably twenty-five times, the continuous operating current of a lamp having the same dimensions. In an example, the lamp comprises a tube of 8 mm. bore having spherical enlargements at the ends accommodating the electrodes which are spaced 60 mm. apart. It is filled with krypton at pressure 200 mm. of mercury and has an internal coating of caesium. The electrodes are of tungsten rod 4 mm. diameter and 10 mm. long. The seals are of molybdenum foil capable of carrying 50 amps. on steady load. The lamp is operated by a bank of condensers of 40 mf. charged to 4000 volts ; discharge is started by a high-frequency field. The duration of each flash is stated to be not more than about 200 microseconds. Larger seals are necessary the greater the rate of flashing. The tubes may have a surround coated with fluorescent material or a coating on the exterior of the envelope. Unactivated electrodes may be used where the current density is of the order of 1000 amps. per sq. cm. of tube crosssection provided they reach a temperature of 1000‹ C. in the course of a flash; otherwise activated electrodes such as described in Specification 565,689 may be used.
Patent GB-1068353-A (GB)
Title: Improvements in and relating to gas meters
Inventor: COLE JAMES HERBERT
IPC: G01F3/22
Filed: 1965-03-08
Abstract: 1,068,353. Gas meters. THOMAS GLOVER & CO. Ltd. March 10, 1966 [March 8, 1965], No.9796/65. Heading G1R. In a gas meter in which a crank arm 11, 12 on each flag rod 3, 4 is pivotally connected to a crank arm link 13, 14 adjustably coupled to one through 21 of a double throw crank 16, 21 which operates the meter index 10 and gas valves 7, 8 the amplitude of movement of the links 13, 14 can be adjusted by rotating an eccentric bush 23 mounted on the throw 21. The bush 23 is adjusted by removing a spring clip 26 and lifting and positioning a disc 24 relative to a peg 25.
Patent GB-1344866-A (GB)
Title: Securities
IPC: B41M3/14
Filed: 1971-04-19
Abstract: 1344866 Documents; fraud preventing ESSELTE AB 19 April 1971 [20 April 1970] 9819/71 Heading B6A A security such as a banknote, bond &c. has symbols printed thereon in ink, certain of said symbols being electrically conductive but of a composition which is visually indistinguishable from that of electrically non-conductive symbols of said security. Some of the symbols other than said certain ones may display magnetic sensitivity.