baber/WOPTO huggingface dataset:
Patent GB-556708-A (GB)
Title: Improvements relating to the waterproofing of plaster and like composition boards
IPC: E04C2/52
Filed: 1942-04-08
Abstract: 556,708. Waterproofing plaster board. PLASTER PRODUCTS (GREENHITHE), Ltd., and RUSSELL E. D. B. April 8, 1942, No. 4597. [Class 140] Plaster board, composed of a core of plaster and facing layers of paper or other pervious material is waterproofed by applying one or more coats of waterproof paint to a facing layer and pressing a layer of textile fabric on to the surface while it is still tacky. A prelimin- 'ary coating of quick drying varnish or other surfacing preparation having the properties of a priming paint or a partial waterproofing composition may be applied, The paint may be any ordinary paint such as lead paint, and the varnish &c. and the paint may be applied also to the edges. The materials are applied, e.g. by dipping, spraying or brushing, and the various processes including the drying by heat of the varnish and paint' may be carried out while the plaster board is on a conveyer.
Patent GB-617612-A (GB)
Title: Elastic locking washer
IPC: F16B39/24
Filed: 1946-02-14
Abstract: 617,612. Locking nuts. PETER, R. K., (trading as PETER & CO., F.). Feb. 14, 1946. No. 4613. Convention date, Feb. 15, 1945. [Class 89 (i)] Locking washers are formed with teeth 1<1>, Figs. 1 and 2, between the open ends in the case of a split washer and lying on the crests at 1', Fig. 12 in the case of a non-split sinuous washer. Teeth 1 are also formed at the ends of the split. The teeth may be chisel shaped, pointed or teeth of both forms may be provided.
Patent GB-265782-A (GB)
Title: Improvements in or relating to culinary vessels
IPC: A47J27/58
Filed: 1926-02-18
Abstract: 265,782. Bayly, P. Feb. 18. 1926. Saucepans; cooking vessels.-A device adapted to be fitted to the mouth of a saucepan or other cooking vessel to prevent vegetables &c. from boiling over comprises a ring- shaped part 1 having a bead &c. at 6 to engage the rim of the vessel and provided with a base 2 formed with one or more openings 3 each surrounded by a sloping lip 4. The upper end of the device is adapted to take the saucepan lid 10. The device may have an internal annular lip 11, Figs. 3 and 4, to prevent spitting and return condensed steam to the pan. The form shown in Fig. 4 has a conical wall 8 adapting it for use with pans of various sizes.
Patent GB-220663-A (GB)
Title: Improvements in and relating to vacuum producing apparatus
IPC: F01B25/00
Filed: 1923-02-16
Abstract: 220,663. Fothergill, H. Feb. 16, 1923. Aspirating-apparatus, ejector.-In apparatus for removing vapour from a condenser and for like purposes, such as that described in Specifications 24192/13 and 129,871, [both in Class 32, Distilling &c.], the pump is provided with two barrels a, b, Fig. 4, and discharges condensate from the main condenser C through the tubes r of the condenser t into which the ejector s discharges. The condensate from the condenser r enters the barrel a above the bucket through a pipe e, the air and vapour passing through a pipe f to the bottom of the barrel. A portion of the air and vapour may also enter the barrel b above the bucket, as shown by the dotted lines. The air and vapour passing through the pipe f may be cooled by a jet of water entering by the pipe k. A portion of the condensate may be returned to the condenser C by a by-pass from the outlet header of the condenser r when required. Reference has been directed by the Comptroller to Specifications 21890/13 and 129,871, [both in Class 32, Distilling &c.].
Patent GB-632853-A (GB)
Title: Improvements in and relating to sound recording or/and reproducing machines
IPC: G11B25/02
Filed: 1947-02-18
Abstract: 632,853. Gramophone mandre s. BRYANS AEROQUIPMENT, Ltd., and WILMSHURST, C. A. Feb. 18. 1947, No. 4650. [Class 40 (ii)] In a sound-recording or -reproducing apparatus having cylindrical records, the mandrel consists of a drum divided into separate segments 17 supported on balls 18, which are located in the ends of a cylindrical cage 19, and which rest on cones 2, 5 mounted on the shaft 1, the cone 2 being fixed to the shaft 1 and provided with a flange 4, and the cone 5 being axially movable under the control of a spring 6 and control knob 15. The segments 17 are retained on the cylindrical cage 19 by means of pins 20 acted upon by wire springs 21 located in slots 22. The pins 20 are placed nearer to the movable cone 5 in order to present a tapered mandrel to the bore of a record being placed thereon, after which it assumes a taper in accordance with that of the bore of the record. Expansion of the mandrel is effected by inward pressure of the knob 15 which is located in both the inner and outer position by means of spring-loaded balls 8 which engage annular grooves 10 and 12. The knob 15 is released to take up its outer position by pressure applied to a press-button 13 which is provided with a bevelled part 14 serving to disengage the balls 8 from the groove 12. The groove 10 is also provided with a bevelled part 11 whereby the balls 8 are disengaged upon inward pressure of the knob 15.
Patent GB-105114-A (GB)
Title: Improvements in or relating to Cores for use in the Manufacture of Rubber Tyres.
IPC: B29C33/76
Filed: 1916-03-31
Abstract: 105,114. Ajax Engineering Co., and Cox, J. March 31, 1916. Moulding india-rubber tyres.- The smaller sections a, Fig. 1, of a ring-core are prevented from becoming displaced out of the plane of the larger sections b by tongue-and-groove engagement with the central ring g. A groove c, Fig. 2, runs round the core, and tongues f are formed on the ring. After passing the tongues f through gaps e in the walls d of the groove, the central ring is turned to carry the tongue into the complete groove. Bolts h hold the smaller section radially, and a screw i serves to ease it from the central ring when this is to be removed. Fig. 4 shows the central ring with bayonet-slots j, which render it unnecessary to remove the bolts.
Patent GB-470575-A (GB)
Title: Improvements in or relating to typewriters and like machines
IPC: B41J19/84
Filed: 1936-02-17
Abstract: 470,575. Typewriters &c. STANDARD REGISTER CO., and SHERMAN, J. Q. Feb. 17, 1936, No. 4846. [Class 100 (iv)] Line - spacing mechanism.-A platen or feed-roller is connected by a slip-coupling to line-spacing mechanism for normal spacing, and, for feeding headings or blanks past the printing line, is provided with auxiliary mechanism, which is arranged to impart a full movement to the line-spacing mechanism and then to impart a further movement to the platen or feed-roller, the line-spacing mechanism remaining stationary so that correct normal spacing can be effected thereby when again operated. The platen 2, Fig. 1, is provided with normal and auxiliary line-spacing mechanisms operated by levers 15, 15<1> which are interconnected by means of relatively slidable links 28 and an interposed spring 29, so arranged that the lever 15 can be operated independently of the lever 15<1>. The normal spacing-mechanism comprises the usual slide 7 carrying a pawl 5 co-operating with a ratchet-wheel 4, a finger 8 on the pawl co-operating with a fixed backstop, and a shelf which is adjustable to regulate the spacing. The ratchet-wheel is frictionally coupled to the platen by means of a spring- urged cone 21. The auxiliary spacing-mechanism comprises a slide 7<1>, pawl 5<1>, an adjustable shelf 9<1>, a ratchet-wheel 4<1> secured to the platen-shaft 3, and a pawl back-stop 18<1> which is slidably mounted and is adjustable by means of a threaded rod 26 provided with a knob 27. Alternatively, the back-stop may consist of an eccentric adjustable by means of a fingerpiece. Normally, the lever 15 is employed for line-spacing, and the link 28 connected thereto slides idly on the other link. After a form has been typed, the lever 15<1> is employed for line-spacing, the links 28 causing the lever 15 also to be operated. After the pawl 5 has been jammed by the back-stop, the coupling 21 slips, and a further line-spacing movement, limited by the adjustable back-stop 181, is effected by means of the pawl 5<1>. The ratchetwheel 4 remains in register with the pawl 5 so that correct normal spacing is effected when the lever 15 is again operated independently. The mechanism shown at the lefthand of Fig. 1 may be replaced by that shown in Figs. 5 and 6, and comprising a ratchetwheel 4 for normal spacing, and a slightly smaller ratchet-wheel 34 for auxiliary spacing, the ratchet-wheels co-operating with separate pawls 5 carried by a single slide 7. The ratchet-wheel 4 is connected to the platen by means of a friction-coupling 21, and the ratchet-wheel 34 has a slot 35 which engages a pin 36 on the platen. During normal spacing, the pin travels idly in the slot, but after a number of spacing movements, determined by the length of the slot, the rear end of the slot engages the pin, and increased spacing is effected by the ratchet-wheel 34, the frictioncoupling permitting the ratchet-wheel 4 to slip.
Patent GB-1463556-A (GB)
Title: Sensing device
IPC: G06K7/04
Filed: 1974-02-01
Abstract: 1463556 Embossed card reader ADDRESSOGRAPH MULTIGRAPH CORP 1 Feb 1974 [2 Feb 1973] 04849/74 Heading G4M An embossed card reader having either a floating read head (capable of rotating about different axes to compensate for variable positioning of a card, Fig. 1a, not shown) or a fixed head (Fig. 2, not shown) has a roller beneath and supporting a card and pivotally mounted probes 37. The probes have, partway along their length, feeders 34 arranged so that their card contacting surfaces are situated between the non-embossed and the embossed surfaces of the card so that they do not contact the embossed surfaces. The head has two guides 33 having inclined leading edges engaging the top and bottom edges of the embossed indicia to correctly position the indicia beneath the feelers, the head being slidable against a restraining spring on bars 29 (or on bar 22, Fig. 1a, not shown). The ends of the probes 37 are arranged to interrupt light beams passing between light emitting diodes 44 and photo detectors 43. The light beams may be restricted by slots in plate 45. The feelers have wider tips on the two end and middle probes than on the two other probes to compensate for variations in characters in the Farrington 7B font.
Patent GB-1271440-A (GB)
Title: Method of obtaining variances of a characteristic of a sheet material
IPC: B29C48/92
Filed: 1970-02-02
Abstract: 1,271,440. Automatic control of paper making process. MEASUREX CORP. Feb.2, 1970 [Feb.17, 1969], No.4851/70. Heading G3R. In a paper making machine the quality of the paper sheet is controlled by apparatus which in a succession of scans by scanning heads (radiation absorbtion type) across the width of the moving sheet (called the crossdirection CD) takes measurements of basis weight (and moisture content) at a plurality of points in each scan. A fundamental crossdirection profile, Fig. 4 (not shown) is then derived by a computer from the measurements taken at points in each scan which lie in common paths in the direction of movement of the paper e.g. points A B C D E F along path 17, Fig.3A. The computer analyses the fundamental profile to separate long term variations from short term variations in the basis weight and controls the machine to counteract the variations. The measurements taken along the common paths are fed to respective exponential filter and storage units 18, 19 &c. Dominance is given to basis weight measurements which are more recent in time. Thus with the sheet moving to the right of Fig. 3A the data point A is the oldest in time and data point F the more recent, the relative dominance of the measurements taken being illustrated in Fig. 3B. The most recent data is stored in the units 18, 19 and other similar units until updated by the next successive scan. When combined in the computer the values of basis weight stored will produce the said fundamental profile. The filtering removes any 'rapid' basis weight variations leaving variations which can be corrected by specific adjustment of the machine. As shown Fig. 6, a head box 31 through a slice opening 32 produces a wet sheet of paper 33 which is moved by a rotating wire 34. After passing through a dryer 36 the sheet is scanned by a head 38 including a basis weight detector 39 and moisture detector 40 which feed signals to an evaluator 51 comprising the filter and storage units 18, 19 and the computer processor. To correct unevenness in the profile the computer applies a control signal to a controller 44 which adjust the slice. Another output from the computer via a line 53 in accordance with long term machine direction variances, allows for manual adjustment of a controller 54 to adjust steam supply to the dryer and to control a head stock valve 42. An output on line 57 signifies a large short term variation in basis weight and indicates that manual or automatic adjustment of feed-rate to the head box, by adjustment of the roller speed, is necessary.
Patent GB-848504-A (GB)
Title: Electromagnetic switching means for controlling electric circuits
Inventor: WILCOX KENNETH
IPC: H02P9/18
Filed: 1958-02-14
Abstract: 848,504. Regulating switches; electromagrietic switches. MORRIS ELECTRICAL ENGINEERING CO. Ltd., J. Feb. 11, 1959 [Feb. 14, 1958], No. 4862/58. Class 38 (5). [Also in Group XXXV] An electromagnetic switch, particularly for voltage regulation, has an electromagneticallyactuated rotatable member which drives a slide coupled by flexible tapes to two parallel conducting rollers, at least one of which cooperates with a row of contacts disposed along a line inclined to the roller axis. The electromagnet (not shown) rotates the member a against the bias of a spring b acting on a tape c attached to the member a. Three further tapes c<SP>1</SP> are attached to the member a and slide d so that it is moved longitudinally as the member a rotates. Additional tapes h are attached to the slide d and to metal rollers e supported on metal strips f. Each roller e has a projection i and these are coupled by strips j and a spring h which maintains the tapes h in tension. The rollers move along the surfaces of contactmembers mounted slantwise on the base g. Each contact-member comprises a conductor n in an insulator o with an exposed part p coated with silver to form the contact surface. The other end q of the conductor n has a V-shaped notch which is engaged by a knife-edge r on an insulating-bar s about which the contact-members are urged by springs t. As the rollers move along, they successively engage the contactsurfaces p of the conductors n which may be connected to a number of parallel resistors (Fig. 6, not shown).
Patent GB-1390172-A (GB)
Title: Self-adjusting structure
IPC: A47B91/16
Filed: 1973-01-31
Abstract: 1390172 Tables with levelling feet; separate feet C W FRASER 31 Jan 1973 [15 Feb 1972] 4863/73 Headings A4H and A4U A support structure for a table or the like is self-adjusting in dependence upon the unevenness of a floor on which the support structure is mounted and comprises two parts 14.1 and 14.2 which are relatively rotatable about an axle 36 when co-operating locking means 38,40 are disengaged by relative rotation of the two parts 14.1 and 14.2 about an axis perpendicular to axle 36. As shown, a screw 36 engaging a tapped bore in the part 14.1 passes with clearance through a bore 28 in the part 14.2 so that the latter is able to be tilted relative to the part 14.1 when a coiled spring 34 sandwiched between the parts 14.1 and 14.2 urges the parts 14.1 and 14.2 away from each other. Under these conditions, the locking means which may comprise co-operable teeth, friction pads or inter-engageable pins and holes are disengaged to allow relative rotation of the parts 14.1, 14.2 about the screw 36. In use, each part 14.1, 14.2 is provided with or connected to ground engageable legs 12 of a table and the part 14.1 is integral with or connected to an upright which supports the table top. With the table lifted away from the floor, the weight of the legs causes the spring 34 to urge the parts 14.1, 14.2 away from each other so that the locking means become disengaged. As the table is lowered towards the floor, the legs, as they make contact with the floor, cause the relative positions of the parts 14.1, 14.2 to be adjusted and subsequently locked in position.
Patent GB-1181011-A (GB)
Title: A process for preparing Tricalcium Phosphate
IPC: C08F2/18
Filed: 1967-02-01
Abstract: 1,181,011. Aqueous polymerization of styrene. STAUFFER CHEMICAL CO. 1 Feb., 1967 [16 March, 1966], No. 4880/67. Heading C3P. [Also in Division C1] Styrene is polymerized, in Example 1, using an aqueous suspension containing:- 495 pts. styrene 1À54 pts. tricalcium phosphate (see Division C1) 0À8935 pts. benzoyl peroxide 2À5 pts. 0À5% solution Na alkyl aryl sulphonate by maintaining at 90 C. for 10 hrs., to produce polymer beads of 20+40 U.S. mesh in size.
Patent GB-465379-A (GB)
Title: Improvements in or relating to valve-controlled liquid delivery nozzles
IPC: F16K31/363
Filed: 1936-02-18
Abstract: 465,379. Nozzle valves. CATTLE, H. N. Feb. 18, 1936, No. 4913. [Classes 69 (iii) and 135] A valve-controlled delivery nozzle comprises a casing 1, a valve member in the form of a sleeve 4 co-operating with a seat 5 in the casing, and a scraper or expressing member 8 for removing liquid still adhering to the inside of the nozzle outlet 3 after the valve 4 has closed. The valve member 4 is adapted to be opened by the pressure of the fluid acting on a piston portion 6 against a spring 7. The plunger member 8 is normally pressed down into the nozzle outlet 3 by a spring 11 and has to be lifted manually by a knob 10 to allow the liquid to pass. The piston 6 may be replaced by a diaphragm or bellows, or the valve 4 may be manually operated.
Patent GB-905310-A (GB)
Title: Process for improving the resistance of films of thermoplastic materials to impact stress
IPC: B29B13/02
Filed: 1960-02-11
Abstract: The resistance to impact stress of an omnidirectionally stretched film of thermoplastic material of high molecular weight is enhanced by heating the film at a temperature 1 DEG -50 DEG C. below the crystallite melting point and/or softening point of the material, the film being allowed to shrink during the treatment to an extent dependent on the temperature used.  Desirably, the temperature used is 2 DEG -20 DEG C. below the crystallite melting point. Specified materials include polyolefins, especially low-pressure polyethylene and polypropylene, fluorolefin polymers, e.g. polymers of tetrafluoroethylene or chlorotrifluoroethylene, polyamides, polyvinyl compounds, e.g. polyvinyl chloride and polyvinyldene chloride and polymers of acrylonitrile and of acrylic acid esters.  Copolymers of the said monomers or blends of the polymers may also be used.  The thickness of the film should not exceed 600m  and is desirably 5-300m .  Before heating, the film should preferably have been stretched to a ratio of 1:2,9-1:15,8, corresponding to 190-1480%.  Heating may be carried out in a liquid bath, e.g. of glycol, for 1-40 seconds. Alternatively hot air or other gases, heated plates, radiant heat or induction heat may be used, but longer contact times are then necessary.  Low pressure polyethylene, with a crystallite melting point of 125 DEG -127 DEG C., is most suitably heated at 115 DEG -120 DEG C.  An omnidirectional stretching process is described in Specification 849,466.  Specifications 799,392, 799,823, 801,031 and 819,867 also are referred to.
Patent GB-367561-A (GB)
Title: An improved method of and apparatus for performing operations such as switching operations by means of electrically-heated bimetallic combinations
IPC: H01H61/02
Filed: 1931-02-17
Abstract: 367,561. Thermal switches. LANDIS ET GYR SOC. ANON., 1, Hofstrasse, Zug, Switzerland. Feb. 17, 1931, No. 4974. - Convention date, Feb. 18, 1930. [Class 38 (v).] An apparatus for performing switching and other operations, comprises an hermetically sealed receptacle containing a bimetallic arrangement the variations of position of which, caused by electrical heating and cooling, are used to control mechanically, through means associated with the receptacle, a device which serves for carrying out the desired operation and is arranged outside the receptacle. As applied to a thermal switch, Fig. 1, two bimetallic spirals 1, 2 have their inner ends attached to an insulating spindle 3 to which is attached a casing 15, evacuated or containing an inert gas at low pressure. The outer ends of the spirals carry weights 8, 9 connected together by an insulating rod 10. Terminals 4, 5 connect the spirals to the poles of an electric supply and a silent discharge passing between the spirals causes them to be heated. The weights 8, 9 are thus moved over their dead position and cause the casing to rotate suddenly thus moving an arm 12 to operate a switch. On cooling the casing again moves suddenly to its initial position. Fig. 4 shows a tariff changing device for an electric meter. A bimetallic strip 20 is fixed at 19 to an evacuated casing 15 pivoted at 17. A heating coil 21 heats the strip 20 causing it to bend and move the weight 9 across its dead centre. The casing then pivots about the point 17 and moves the wheel 25 from engagement with a counting train 23 into engagement with a counting train 24. A tension spring 28 assists the quick action. In modifications the thermal elements consist of bimetallic discs which are heated by glow discharge.
Patent GB-687228-A (GB)
Title: Improvements in or relating to x-ray tubes
IPC: H01J35/18
Filed: 1951-03-01
Abstract: 687,228. X-ray tubes. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. March 1, 1951 [March 4, 1950], No. 4987/51. Class 39(i) An X-ray tube for diffraction investigation has a double window: an outer one 8 of mica and an inner one 10 of beryllium or aluminium. An annular metal ring 6 is secured in the wall 1 of the tube, using a powdered glass sealing mixture 7 if the wall is of glass, and the mica window 8 hermetically sealed inside the ring 6 by a similar seal 9. The second window is a beryllium disc 10 of 0.1 to 0.15 mm. thickness, secured to a shoulder formed in the wall 1. The metal window prevents electrical charges from forming on the mica window, while the provision of the latter allows the use of a thinner metal window than otherwise.
Patent GB-525155-A (GB)
Title: Improvements in hand-operated indicators for use with heating systems
IPC: F24H9/00
Filed: 1939-02-15
Abstract: 525,155. Calculating-apparatus. SIMONSEN, G. V. Feb. 15, 1939, No. 5006. [Class 106 (i)] [Also in Group XXXVIII] An indicator for use with heating systems comprises a circular dial, one half of which (a) is graduated in degrees of temperature of the atmosphere, while the other half (b) bears three different concentric scales of degrees, together with a pointer, one end of which (c) co-operates with the first-mentioned graduations, while the other end (d), preferably slotted, co-operates with the three concentric scales.
Patent GB-267693-A (GB)
Title: Improvements in wheeled carrier attachments for motor cycles
IPC: B62K27/02
Filed: 1926-02-24
Abstract: 267,693. Hayward, C. W., and Stevens & Co. (1914), Ltd., A. J. Feb. 24, 1926. Springs, arrangement of.-The road-wheel axle or spindle of a motor-cycle side-car is carried by an arm 11 on a bracket 9 rotatably mounted on the side-car frame and arranged so that the arm projects upwardly and forwardly from the pivot axis of the bracket, a leaf spring 13 being fixed to the underside of the bracket to project forwardly with its free end sliding between rollers 14 on the frame. The wheel spindle is mounted in the aperture 11a, and the bracket is mounted on ball bearings on a spindle secured in the rear transverse tube of the chassis frame. The body is suspended on the frame by springs 4, 5 connected together at one end, the other ends of the springs being connected to the frame and body respectively. As shown, the spring 5 is connected to a transverse U-shaped member 6 bolted to the body.