baber/WOPTO huggingface dataset:
Patent GB-723218-A (GB)
Title: Improvements in or relating to apparatus for detecting bowing in rotating rolls and for straightening rotating rolls by controlling the bowing when detected
IPC: C03B13/16
Filed: 1952-07-22
Abstract: 723,218. Automatic control systems. PILKINGTON BROS., Ltd., DAVISON, R., and LIGHTFOOT, W. A. July 22, 1952 [Aug. 11, 1951], No. 18957/51. Class 38 (4). Bowing of the axis of a roller rolling molten material is detected and corrected by controlling heating of the appropriate portion of the circumference of the roll. As described, bowing of the axis of an internally water-cooled sizing roll used in continuous plate-glass production, e.g. due to non- uniformity of the properties or of the cooling water flow, is automatically corrected to avoid cyclic variation in the thickness of the glass being produced. In Fig. 2 a roller 31 free to rotate in a bearing at the end of a probe 5 is manually adjusted to engage the circumference of sizing roll 1. Adjustment is by screws 50, 51 moving a housing 40, carrying probe 5, about a pivot 6, and by a screw 13 moving, on wheels 8, a carriage 7 carrying pivoted housing 40. When bowing occurs probe 5 moves relative to housing 40, in which it is mounted by diaphragms 41, 42, so that an adjustable micro-switch, Fig. 3 (not shown), within a easing 22 mounted on housing 40, is operated through a member 59 to energize, through a delay unit, an electromagnetic valve (not shown) admitting cooling air to a conduit 18 so that a cooling stream or streams impinge on the roll at the appropriate location to correct the bowing. Casing 22 also contains apparatus as in Specifications 707,308, 707,309, [both in Group XXXII], and 723,219, to amplify the movement due to bowing and suppress oscillation movements of frequency much above, e.g. due to cylinder surface roughness, or below that due to bowing. Axial movement of probe 5 relative to housing 40 is indicated by a dial gauge 57. Roller 31 may be cooled by air supplied through a hand operated valve (not shown), an inlet 35, a chamber 30, a heat-insulated tube 33, and ducts 32. Air is also supplied through ducts 62, 63 to casing 22 to exclude dust. Location of the cooling stream on the other side of the probe, the substitution of fluid jet, electrical capacity or magnetic reluctance type detectors for roller 31 are referred to.
Patent GB-597426-A (GB)
Title: Method of bonding vitreous enamels
IPC: C23D3/00
Filed: 1945-07-24
Abstract: 597,426. Vitreous enamels. POOR & CO. July 24, 1945, No. 18970. Convention date, Sept. 27, 1944. [Class 56] [Also in Group XXXVI] Vitreous enamels are bonded to steel, cast iron and like articles by coating the article with a thin laver of at least one metal from the group consisting of antimony, arsenic, bismuth, cerium, lanthanum and thorium, thereafter applying to said layer a coating composition of a vitreous enamel and firing. As shown in Fig. 1, the apparatus consists of a plating bath 1 provided with electrodes 2 and the articles to be plated 3. The anode 2 is connected by suitable conductors to the secondary 4 of a transformer having a coil 5 and primary 6, connected to a regulating auto-transformer 7, which in turn is connected to a suitable source of alternating current. Direct current is supplied by the low voltage generator 8 which is connected to the secondary 4 and to the article 3 to be plated through the rheostat 9. Examples are given of acid and alkali plating baths suitable for producing under controlled conditions uniform metallic films of antimony or arsenic of 0.000005-0.00005 inch thickness, which appears desirable for effective bonding. Optimum results are obtained in the presence of oxidizing agents of the oxygen group of elements. The resultant product is removed from the plating bath and treated with a vitreous enamel slip of the type shown, dried and fired to the maturing temperature of the glass preferably within the range 1320-1440 F. The vitreous enamel is free from bonding materials in any amounts normally required for bonding. Specification 599,707, [Group XXXV], as open to inspection under Sect. 91, is referred to.
Patent GB-1530750-A (GB)
Title: Method of and a device for sealing or bonding thermoplastic wrappings of packets
IPC: B29C65/24
Filed: 1977-05-06
Abstract: 1530750 Seaming non-metallic sheet material FOCKE & PFUHL 6 May 1977 [26 May 1976] 19007/77 Heading B5K  A device for sealing or bonding overlapping parts of thermoplastic wrappings on cigarette packets 10 comprises heated heat-conducting strips 12, 13 elongate in the direction of travel of the packets and which are pressed thereagainst, and heat-radiators 21, 22 for supplying heat to the strips 12, 13 without any contact between the strips 12, 13 and the radiators 21, 22. As shown, the packets 10 are supplied in superposed pairs by a conveyer 11 and are wrapped in cellulosic or plastics film with overlapping end flaps to be sealed. The strips 12, 13, e.g. of aluminium sheet of thickness 0À3-0À5 mm,, are formed integrally and margins of arms 16, 17 thereof are inserted in slots in a housing 20. The radiators 21, 22 are infra-red emitters, e.g. of a length equal to two packet lengths, provided with arcuate reflectors 23, 24 the optical axis or plane of each of which passes centrally through the respective strip 12 or 13. The strips 12, 13 have black surfaces facing the radiators 21, 22 to readily absorb radiated heat. The radiators 21, 22 are adjustably but rigidly mounted, independently of the housing 20, by holders (30), Fig. 3 (not shown), and the reflectors 23, 24 are rigidly connected to the housing 20. For adjustment, each housing 20 is mounted on a bracket pivotable about the axis of a shaft 34. Regulation of the rate of heat output of the radiators 21, 22 by regulating the current supplied thereto or varying the voltage. This may be controlled by switches actuated by the packaging machine.
Patent GB-121369-A (GB)
Title: An Improved Leg-rest for Hospital and General Use.
Inventor: ASH WILLIAM WILBE
IPC: A61F5/04
Filed: 1917-12-27
Abstract: 121,369. Ashe, W. W. Dec. 27, 1917 Rests, leg.-A folding legrest comprises a frame c connected to a frame a by pins d slidable in slots e and capable of being supported in the position shown by engagement with the cross-bars b<2> of the frame a. A piece of soft cord &c. g woven across the frame c forms a cradle for the limb. The rest may be made adjustable in height by mounting the bars b<2> on sleeves sliding on the side members of the frame a.
Patent GB-220942-A (GB)
Title: Improved means for rectifying, amplifying, relaying and transmitting electric signals
IPC: H01G9/00
Filed: 1924-08-12
Abstract: 220,942. Varvel, S. Le F. Aug. 23, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Wave-detectors.-Use is made of the fact that resistance of bismuth, antimony and similar materials is largely increased under the action of a magnetic field. The strength of an electromagnet 11 is varied by incoming oscillations through a transformer 15, so as to alter the resistance of a coil of bismuth 10 between the poles. The magnet may be laminated, with the poles sharply inclined to each other and separated by a short gap to concentrate the lines of force. The apparatus may be used as a rectifier or as an amplifier.
Patent GB-1400443-A (GB)
Title: Mounting assembly or kit for mounting one or more objects on a wheel of a vehicle
IPC: B60C23/04
Filed: 1971-06-07
Abstract: 1400443 Wheel nuts A MIRSKY 2 June 1972 [7 June 1971 15 Sept 1971] 19170/71 and 43106/71 Heading F2H [Also in Division B7] A nut 9 engageable with a stud on a vehicle hub to secure a wheel 2 to the hub has a radially protruding flange 15 welded thereto between its wheel and spanner engaging portions, the flange 15 engaging in use behind a mounting member 8 through which the wheel engaging portion of the nut is passed so that tightening of the nut against the action of a resilient member 3 causes the member 8 to be secured to the wheel whereby an object or objects can be mounted on the wheel by the member 8. The wheel and spannerengaging portions of the nut 9 may both be hexagonal as shown in Fig. 4 but alternatively (Fig. 6, not shown) the wheel engaging portion may be cylindrical with a frusto-conical wheel engaging surface, the diameter of the cylindrical part being approximately equal to the distance between opposed flats of the hexagonal spanner engaging portion. The bore of the nut 9 may be closed at the non-wheel engaging end of the nut by a disc pressed into a counterbore.
Patent GB-888747-A (GB)
Title: Improvements in colorimetric analysis
IPC: G01N21/27
Filed: 1959-06-04
Abstract: 888,747. Calculating-apparatus. TECHNICON INSTRUMENTS CORPORATION. June 4, 1959 [June 12, 1958], No. 19187/59. Class 106 (1). A method of testing a series of liquids by colorimetric analysis in which light transmittance values representing in a non-linear manner the concentrations of a substance in the several liquids of the series are recorded on a chart and the concentrations are determined by superimposing a translucent comparator plate, bearing a calibration curve of concentrations on a linear scale against transmittance values, over the chart and moving the comparator plate to position the calibration curve against the light transmittance value on the chart seen through the comparator plate, the calibration curve 16 having been marked on the comparator plate 14 by comparison with a record 12 on a chart 10 of the light transmittance values of liquids of known concentrations as indicated in Fig. 1. The comparator plate, Fig. 2, is smooth on one side and matt on the other, so as to accept pencil markings or the like. It may comprise two layers of translucent plastic with the linear scale markings, which are arranged to form a band approximating to the calibration curve, between them.
Patent GB-804969-A (GB)
Title: Improvements in or relating to nitrocellulose
IPC: C08B5/04
Filed: 1957-06-18
Abstract: In a method for rendering wet nitrocellulose free-flowing, the nitrocellulose is subjected to compressive forces.  Thus it may be compressed into flat sheet-like sections or flat irregularly shaped disc-like particles.  The compressed product may be subsequently broken up into still smaller particles by any mechanical process. The nitrocellulose may be water-wet or alcohol-wet.  An example is given.
Patent GB-1452443-A (GB)
Title: Container for articles
IPC: B65D5/42
Filed: 1974-05-02
Abstract: 1452443 Cartons SMEDLEY-HP FOODS Ltd 25 March 1975 [2 May 1974] 19234/74 Heading B8P A container of fibreboard for holding tiered articles comprises two open-top trays 10, 12 each with an inspection opening 11 and held together by a single lid 13 which can also have an inspection opening 14. The container may be shrink wrapped or overwrapped. The openings 11 are also used as handholes even when the container is wrapped.
Patent GB-121788-A (GB)
Title: Improvements in Machinery for Winding Yarns or Threads on to Bobbins, Spools or the like.
Inventor: KERSHAW GRINDROD
IPC: B65H54/74
Filed: 1917-12-31
Abstract: 121,788. Kershaw, G. Dec. 31, 1917. Driving-arrangements.-In a machine for winding yarns &c. upon bobbins mounted upon spindles driven by pulleys or other devices capable of slipping relatively to the spindles so that the yarns &c. as delivered from rollers hold back the spindles and determine their speed of revolution, the delivery rollers are made to revolve at a variable speed as the yarns are wound in their conical layers. In the arrangement shown in Fig. 1, the delivery rollers a, b, c are driven by a belt h running over conical pulleys g, i. The belt is moved over the pulleys by guides j, k mounted on shafts l, m carried in fixed brackets n, o, p. The shafts are geared together and the shaft m is turned to move the belt through the agency of the lever c which reciprocates the yarn guides through a link 1, bell-crank v, and link t embracing a stud s on an arm on the shaft. The end 2 of the link 1 can be adjusted along a slot 3 in the lever e to vary the movement of the belt, and if desired to prevent movement of the belt during the winding of the cop-bottom. Reference is made to Specification 9313/11 and in the Provisional Specification also to Specifications 16324/94 and 2335/10.
Patent GB-452739-A (GB)
Title: Improvements in or relating to vacuum meters for supervising the gas or vapour pressure in vacuum discharge apparatus
IPC: H01J7/42
Filed: 1935-07-05
Abstract: 452,739. Mercury - vapour rectifiers. LEHMANN, W., 45, Trabener Strasse, Grunewald, Berlin. July 5, 1935, No. 19266. Convention date, July 9, 1934. [Class 39 (i)] [See also Group XIX] To supervise the vacuum in a mercuryvapour rectifier an auxiliary discharge is obtained between the main cathode 2 and an auxiliary anode 8 separated from the rectifier interior by a shield 7 and a plate 9 with a small orifice which restricts the current flow to this anode ; the anode 8 and cathode are connected to a current source 10, the circuit including an indicator 14 and /or a coil 15 for a pump switch. By working near the current saturation point of the auxiliary circuit an oscillatory discharge is obtained, which on a rise in the pressure causes the coil 15 to start up a vacuum pump ; on a fall in pressure-indicated by the meter-a manually-actuated valve is used to admit vapour to the rectifier. In a modification, a coil 16, Fig. 3, in the auxiliary discharge circuit energizes a discharge tube 19 when the pressure rises and as a consequence causes the vacuum pump to run. Specification 394,494 is referred to.
Patent GB-1269971-A (GB)
Title: Compressed parallax photography
IPC: G03B35/04
Filed: 1969-04-16
Abstract: 1,269, 971. Stereoscopic photography. PID CORP. April 16, 1969 [April 17, 1968], No.19370/69. Heading G2A In a method of three-dimensional photography in which a camera 20 has a screen 24 comprising a plurality of focusing elements in front of the film 26, the camera is moved along an arcuate path round the object 28 being photographed, the exposures being intermittent and not continuous, and the film is moved relative to the screen during each exposure so that the total displacement during the entire traverse of the camera is equal to the width of one focusing element. As shown, the camera is driven by a motor 33 from A to B along an arcuate path 42. A timer mechanism 25 controls a solenoid 31 which in turn controls the camera shutter 21, so that a series of separate exposures is made at discrete positions 44 as the camera traverses the path 42. Timer 25 also controls a motor 27 which effects movement of the film 26 relative to the screen 24, this being of lenticular form. Since film movement and shutter actuation are both controlled by timer 25, the film is arranged to move a small controlled distance every time the shutter operates, and in the opposite direction to the camera movement. The summation of all the film movements during the traverse of the camera along the entire path A to B is equal to the width of one screen lenticle.
Patent GB-1452640-A (GB)
Title: Temperature compensated thermal relay devices
IPC: H01H47/26
Filed: 1974-05-02
Abstract: 1452640 Non-contact-making relays MULTISTATE DEVICES Ltd 2 May 1974 [21 May 1973] 19384/74 Heading H3X A thermal relay comprises a heated switching element which exhibits an abrupt change in impedance when a predetermined transition temperature is reached, and an associated circuit arranged to initially provide substantial power to a heater for rapid attainment by the element of its transition temperature, followed by the reduction of the heater power to a level such as to maintain the switching element at a temperature just above the transition temperative. The switching element is a so called "polyconductor", such as a film of vanadium dioxide the resistance of which changes from above 100 K to about 100 ohms at the transition temperature. The polyconductor may have either a positive or a negative temperature coefficient, which corresponds, in the thermal relay, to normally closed and normally open contacts, respectively. In Fig. 1 the current to the heater H1 of a thermal relay having a switching element M1 is determined by a transistor T1, the heater current being reduced when the transition temperature is exceeded by a change of transistor bias, this change being effected by a slower acting thermal relay formed by a negative temperature coefficient switching element M2 and a heater H2. This slower response may be determined by a resistor R2 shunting heater M2, by different heater resistance values, or by the use of a common heater with different thermal couplings to the elements M1 and M2. In a modification. Fig. 2, the switching time of the thermal relay is reduced by a transistor bias R3 of such value that the switching element M1 is heated to just below its transistion temperature. Switching takes place when the bias is changed by closing a switch SW3. An alternative arrangement is shown in Fig. 3 in which a positive temperature coefficient heater device PTC1 having a transition temperature higher than that of a switching element M3 is connected in series with heater H3 to limit the heater current when the transition temperature of M3 is reached. In a modification, Fig. 6, a preheating circuit to just below the transition temperature of M3 is provided by a further positive temperature coefficient heater device PTC2. The elements PTC1, M3, H3 and, where provided, PTC2 are mounted on a common thermally conducting substrate, Figs. 4 and 7 (not shown), the thermal coupling and temperature coefficient stabilizing operation under conditions of varying ambient or operating temperatures, varying power source voltage and irregular switching duty cycles. In a modification the switching element of the thermal relay may be directly heated by a positive temperature coefficient heater device PTC.
Patent GB-256630-A (GB)
Title: Improvements in and relating to gas heating stoves
IPC: F24C3/04
Filed: 1926-08-05
Abstract: 256,630. Junkers, H. Aug. 8, 1925, [Convention date]. Casings; gas stoves.-In a gas radiator stove comprising heat - radiating members extending between common combustion and exhaust chambers, the two chambers are spaced apart horizontally so that air is able to circulate vertically upwards between the heat-radiating members. The stove shown comprises a combustion chamber 2 and exhaust chamber 3, spaced apart horizontally, and connected by radiator members each comprising an inner shell 4 of inverted U form, through which the gases pass, and an outer shell 5 heated by radiation from the inner shell. Air from the room enters the stove from below and passes up between the shells 5. To equalize the temperature, heat-conducting connections 12 may be made between the upcast and downcast members of the inner shells. The stove is provided with a back wall 7, preventing overheating of the room wall. The combustion chamber 2 is surrounded by a shell 6, the burners being accessible through an opening 9 and a door 10 in the combustion chamber.
Patent GB-1489060-A (GB)
Title: Transmission assembly
IPC: F16H3/72
Filed: 1974-05-02
Abstract: 1489060 Variable-speed gearing DAWNLYNN Ltd 24 April 1975 [2 May 1974] 19400/74 Addition to 1415523 Heading F2D Coaxial input and output shafts 11, 12 are interconnected by gearing comprising wheels 18, 21 fixed to the respective shafts, gear clusters 26a, 26b and 31a, 31b mounted on shafts (not shown) supported in a carrier 13 which is rotatable on the shafts 11, 12, and a gear cluster 19a, 19b rotatable on the shaft 11. The train 18, 26a, 26b, 19a provides a step down in speed between 18 and 19a and the train 19b, 31a, 31b, 21 provides a step up of greater magnitude between 19b and 21. The overall ratio between the input and output shafts is stated to adjust automatically, according to the torque on the output shaft, between an overdrive condition, in which the output shaft rotates faster than the input shaft, and a neutral condition in which the output shaft remains stationary, when the carrier 13 rotates at its maximum speed. Reverse drive is obtainable by providing an additional drive to the carrier. A series arrangement of more than one gearing assembly may be used.
Patent GB-409930-A (GB)
Title: Improvements relating to glass disc-records for sound reproduction
IPC: G11B3/70
Filed: 1933-07-08
Abstract: 409,930. Gramophone records. SOC. D'EXPLOITATION DES VERRERIES DE BAGNEAUX ET APPERT FRERES REUNIES, Bagneaux-sur-Loing, Seine et Marne, France. July 8, 1933, Nos. 19405 and 19406. Convention dates, July 28, 1932 and June 16, 1933. [Class 40 (ii).] Relates to the manufacture of disc sound records of glass. According to the invention, the glass is tempered by rapid cooling after moulding, so that it offers great resistance to breaking. As shown, a glass disc a, softened by heat, is placed between two boxes c, d, a matrix b being interposed between one side of the disc and the box c. Pressure is applied to cause the matrix to impress the disc, and immediately afterwards rapid cooling is effected by passing a suitable fluid through the boxes by means of conduits e, f, valves g being provided for this purpose. Records with impressions on both sides may be similarly made. The parts b, c, d may be placed vertically, the disc a in this case having means for suspending it. In a modified process, the glass may be cast in a mould, of which the matrix forms a part, cooling being effected as described above.
Patent GB-235511-A (GB)
Title: Improvements in kneading and mixing machines
IPC: A23G3/02
Filed: 1924-08-16
Abstract: 235,511. Kempter, F. June 13, 1924, [Convention date]. Stationary batchmixers with rotary stirrers.-A kneading and mixing machine, in which kneading arms are mounted on horizontal shafts at the bottom of the trough, is provided with an agitating device f mounted on a vertical shaft e passing through the lid g. The shaft e is slidably mounted so as to raise the blades f near the cover where they are protected during the charging of the trough, by baffles m.
Patent GB-1302120-A (GB)
IPC: B23Q35/16
Filed: 1970-04-17
Abstract: 1302120 Template followers CINCINNATI MILACRON Inc 17 April 1970 [17 April 1969] 18494/70 Heading G3N A tracing head 82, Fig.3a, detects the presence of a three-dimensional model by a finger 13, the axial and angular movement of which is determined and modified to analogue depth and total error signals by transducers 86. The analogue total error signal is fed to a tracer control unit 136 wherein a binary expression corresponding to the error is derived from a converter 90 which is fed to a circuit 92 to modify the frequency of a pulse source output. The modified pulse output drives a modifier 96, controlling rate of response to tracer deflection, and a modifier 94, controlling response in depth. The modifier 96 drives a sine-cosine generator 108 that is initially set by an operative. The sine /cosine outputs of generator 108, together with the output of a feedrate generator 110 set by the operative, are fed to a tangential vector generator 112 and the sine/  cosine outputs and the output of the modifier 94 are fed to normal vector generator 114. The outputs of generators 112, 114 are summated in a circuit 115 and fed, on lines 116, 118, as signals representing velocity vectors in the tracing plane parallel to the selected co-ordinate directions. The signals on lines 116, 118 are fed directly, when tracing in depth or in a plane, to overflow gating circuitry 124, Fig.3b, or, in combination with values from digital angle decoders in a skew-plane control 120 plane signals set by the operative, through circuits 122. The gating circuitry also receives a depth signal from a system 137 comprising an analogue-todigital converter 142 a synchronizing circuit 142 and modifier 144. The velocity determining outputs of the circuitry 142, through digital to analogue converters 334-338 control servo amplifiers 340-344 energizing tracer positioning elements 126-130, feedback being derived from transducers 48, 60, 74 to summing networks 335-339. In a modification particularly for cutting in a combined mode, employing depth and planar movement, the feedrate in the depth direction is also controlled.