baber/WOPTO huggingface dataset:
Patent GB-508125-A (GB)
Title: Improvements relating to pest destroying compositions
Filed: 1938-04-13
Abstract: 508,125. Vermin - destroying compositions. BOOTS PURE DRUG CO., Ltd., POWELL, A. D., TAIT, J. C. E., and WOLMER, LORD. April 13, 1938, No. 11388. [Class 81 (i)] A composition for destroying slugs and other pests is produced by forming discrete pieces of a paste containing metaldehyde and a fatty , vehicle, e.g. lard, and baking same at a temperature low enough to avoid substantial volatilization of the metaldehyde, e.g. at about 130‹ F. The paste may also contain a material such as bran or " fourths," a mucilagenous substance, e.g., flour mucilage, and a substance which liberates gas during baking, e.g. ammonium carbonate. The discrete pieces are produced by forcing the paste through a sieve, or through an extrusion die to form rods or pipes, or by rolling the paste into sheet form arid cutting into cakes.
Patent GB-503998-A (GB)
Title: Improvements in catamenial appliances
IPC: A61F13/64
Filed: 1938-04-13
Abstract: 503,998. Catamenial appliances. ASTENGO, R. O., and TAVANI. D. April 13, 1938, No. 11395. [Class 81 (ii)] A catamenial pad 3, of the contour shown, or of elliptical or oval shape, comprises superposed layers of absorbent material, such as cotton wool, backed by a waterproof layer of rubber, guttapercha or the like, and stiffened by compressing around the edges 4. The pad may be flat, or convex on the absorbent side, and may be worn internally or formed integral with straps 10 one of which has a loop sliding on a belt 8 whereas the other has a button 7 engageable with button-hotes 9 in the belt.. Flexible celluloid or metal-stiffeners may be inserted between the layers around the edges 4.
Patent GB-1345035-A (GB)
Title: Easy-threading needle
IPC: D05B85/02
Filed: 1971-04-27
Abstract: 1345035 Sewing machine needle SINGER CO 27 April 1971 [4 May 1970] 11496/71 Heading D1G An easy threading needle comprising a blade 15, an eye 12 and a main point 18 has a thread entry slot 20 extending from one side of the main point into the needle eye 12, the slot providing a concave recess into one side of the needle point and a minor point 30 at one side of the needle, the minor point being bent inwardly toward said tapered extremity and into a position completely within the said recess. The slot may be disposed at not more than 3‹ to the needle axis. The slot may be arcuate in section and may be cut by a tubular cutter (Fig. 6 not shown) of substantially the same diameter as the needle shank; alternatively the groove may be V-shaped.  In use, a thread loop is passed around the main point (Fig. 4 not shown) and drawn to one side to flex the main point away from point 30 and open the slot. The loop is then drawn up into the eye.
Patent GB-1464571-A (GB)
Title: Artificially sweetened beverage composition
IPC: A23L27/30
Filed: 1974-03-14
Abstract: 1464571 Beverage compositions GENERAL FOODS CORP 14 March 1974 [4 April 1973] 11510/74 Heading C6E A dry beverage mix composition contains a sweetening dipeptide and an amount of whey protein to modulate and control the after-taste and fast sweet surge of the dipeptide. The dipeptide may be the methyl ester of L-aspartyl-L-phenylalanine (APM) and preferably less than 1 wt. per cent is used, with less than 10% whey protein.  Additional components may be fruit flavouring, edible food acid, saccharin, and natural sweeteners e.g. sucrose. A beverage mix containing APM and whey protein, suitable for producing an orange coconut beverage is disclosed.
Patent GB-753696-A (GB)
Title: Improvements in or relating to cathode-ray tubes of the kind comprising a cone and aglass window
IPC: H01J29/87
Filed: 1954-04-21
Abstract: 753,696. Cathode-ray tubes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. April 21, 1954 [April 24, 1953], No. 11533/54. Class 39 (1). A metal clamping- ring with V-shaped flexible regions 4 is shrunk on to the edge of the cone of a cathode-ray tube where the cone is sealed to the glass window 1. The ring is located against a ridge on the cone. The cone may be of glass or metal. Specification 493,602 is referred to.
Patent GB-418309-A (GB)
Title: Improvements relating to vehicles for the transport of refuse or the like
IPC: B65F3/14
Filed: 1933-04-20
Abstract: 418,309. Scavengers' vehicles. FISHER, G. L., 561, Old Kent Road, Southwark, London. April 20, 1933, No. 11616. [Class 108 (i).] A scavenger's vehicle is provided with means whereby the refuse or bulky material may be crushed in a vertical direction against the body of the vehicle. As shown, a horizontal plate or frame 4 is adapted to compress the load by means of lazy-tong levers 5 carried by a frame 6 and operated by screw 9 from a gear box 10 and eventually from the vehicle engine by shafts 11, 13, a clutch lever 14 being provided. A partition 3 is mounted on a movable floor 2, whereby the crushed load may be discharged when the tail gate is released. The movable wall or partition may, in addition, be used for lateral compression of the load. Two or more pressing frames may be provided.
Patent GB-1286745-A (GB)
Title: Improved illuminating device
Inventor: HUTCHINSON ERIC
IPC: G02B21/06
Filed: 1970-03-11
Abstract: 1286745 Microscope lamps THERMAL SYNDICATE Ltd 19 April 1971 [11 March 1970] 11628/70 Heading F4R [Also in Division G2] A lamp for illuminating an object to be viewed by a microscope comprises an annular casing formed with a groove 5 containing an arcuate electrodeless discharge lamp 6 which surrounds the central aperture 14 in the casing through an angle of at least 270 degrees. The surface of the groove is coated with reflecting material and the mouth of the groove may face in the axial direction of the aperture (as shown), to produce an annular beam of light, or radially inwardly towards the centre of the aperture. The objective lens of the microscope is located within the aperture 14, and the lamp is supported by a stem 3 clamped between parts 1 and 2 of the casing and can be inclined to the optic axis of the microscope if desired. The lamp 6 has a glass or silica tube containing a gas or vapour which can be excited to a state in which it emits one or more particular frequencies by connecting a pair of tubular metallic electrodes 10, 11, surrounding the enlarged ends (7, 8, Fig. 1, not shown) of the lamp to a relaxation oscillator generating an approximately square wave output, rich in harmonics, at a frequency between 1 and 10 megahertz.
Patent GB-1427568-A (GB)
Title: Tape cassettes and cassette tape recorders
IPC: G11B15/50
Filed: 1973-03-09
Abstract: 1427568 Tape cassette SOC DE FABRICATION D'INSTRUMENTS DE MESURE 9 March 1973 [15 March 1972] 11629/73 Heading B8M [Also in Division G5] During storage or transport of a magnetic tape cassette a cover 13 occupies the position shown at the left hand side of Fig. 6 in order to close apertures in the front of the cassette, during playing of the cassette the cover 13 occupies the alternative position at the rear of the cassette, the cover remaining attached to the cassette in both positions and whilst moving between them. Preferably cover 13 is permanently connected to the cassette by two pegs 14, (14<SP>1</SP>) Fig. 10 (not shown) facing each other on opposed inner surfaces, the pegs being held captive in, but capable of sliding along grooves 15 (15<SP>1</SP>) in the top and bottom surfaces respectively of the cassette. In the closed (storage) position (Fig. 7, not shown) the pegs occupy ends 15a (15<SP>1</SP>a) of the grooves. To reach the open (play) position (Fig. 8, not shown) the cover is moved so that the pegs travel along the grooves to the ends 15b (15<SP>1</SP>b). A leaf spring (18, Fig. 9, not shown) at the opposite end of the cover from pegs 14 (14<SP>1</SP>) presses against the cassette to secure the cover by a wedging action. Each spool has a brake unit (9, Figs. 1, 5, not shown) capable of pivoting about an axis parallel to the axis of rotation of the spool, each brake unit comprising a spool brake shoe (9c) and an abutment (9e) arranged to ride up a cam surface of the recording unit when the cassette is inserted in a recorder, to retract the brake shoe to an inoperative position from a braking position against the action of a spring (9f). A tape tensioning means contained in the recorder is described (see Division G5). Reference has been directed by the Comptroller to Specification 1,283,649.
Patent GB-650932-A (GB)
Title: Improvements in fashioning mechanism for knitting machines
IPC: D04B11/28
Filed: 1946-04-16
Abstract: 650,932. Knitting. TEXTILE MACHINE WORKS. April 16, 1946, No. 11684. Convention date, July 17, 1945. [Class 74 (ii)] A knitted fabric portion having parallel selvage edges is formed by a method comprising transferring by points a group of loops, including an edge loop, outwardly to widen the fabric temporarily and to make a lace opening which is retained in a certain course as a permanent feature of the fabric and transferring the edge loop of said course inwardly, to restore the fabric to its original width prior to knitting another course. Lace openings 58 run from the widened part 59 of the heel through the part 60 which is neither widened nor narrowed ; in this part 60 the line of openings is inclined towards the selvage and between it and the selvage is a line of fashion marks 68. After the widening of the heel and the knitting of a course 67, on each side of the blank, fashioning points transfer a group of loops (including the edge loop) one needle outwardly ; make a further and idle one-needle outward movement ; and then engage all the transferred loops except the innermost one (because of the preceding idle outward movement) and return them to their original needles. This leaves two loops on the innermost of the needles receiving the inwardly transferred loops and, when the next course is knitted, both these loops are cast off, producing a fashioning mark alongside a lace opening. The cycle is repeated to the course 61. The thread carrier rod spindle 84 and narrowing rod spindle 85 are rotated, to alter the position of the carrier end stops and point combs, by the camshaft 75, acting through lever 78, oscillating actuator member 81, linkwork, narrowing pawls 88, 89 and widening pawls 105, 106, 109. The pawl 109 is freed, when necessary, to produce the idle widening movement of the points, by manually raising a link 170. Fig. 32 (not shown) depicts a machine which may be set to perform single-needle or two-needle narrowing as desired.
Patent GB-1480749-A (GB)
Title: Wired broadcasting systems
IPC: H04N7/173
Filed: 1974-03-16
Abstract: 1480749 Wired broadcasting systems COMMUNICATIONS PATENTS Ltd 7 March 1975 [16 March 1974] 11791/74 Heading H4R In a wired broadcasting system a wide band coaxial cable 3 carries multichannel programme signals from a programme source 1 to a number of programme exchanges 4 to each of which a number of subscriber units 7 are connected. The channels in the wide band cable 3 are stacked one upon another in frequency, and each exchange has, for each subscriber a respective frequency translator 10 which is controlled from the respective subscriber unit 7 to convert a selected one of the stacked frequency signals to a predetermined other frequency which the subscriber is able to receive. As described the central station 1 transmits the programme signals on low deviation fm carriers, although standard UHF or VHF modulation can be used, and the cable 3 has a bandwidth of 600 MHz. Also applied to the cable are one or more pilot tones from generator 5. Each exchange can be connected to its subscribers by respective "Qwist" cables 8 of the type described in Specification 1,272,594 fed from the frequency translators 10 with a unit 11 to bypass the pilot signal around the translators 10 and apply it direct to the line. At the subscribers unit the pilot signal is utilized via frequency dividers or multipliers to generate selectively control signals which, fed back to the exchange, determine the parameters of the frequency translation so that the selected programme is returned to the subscriber over the respective one of lines 8 at the frequency which the subscriber can receive. In order to restrict reception of particular programmes the control unit 11 at the exchange may restrict the pilot tones applied to the subscribers line so that not all the programmes available can be selected by the subscriber to prevent subscribers receiving pay programmes &c. If desired the control unit 11 may be under the control of a central pay tv computer. In an alternative embodiment, Fig. 2 (not shown) the exchange 4 is linked to the subscribers units 7 via a single wide band cable (15) and individual subsidiary cables (16) and the various subscribers are allotted respective transmission frequencies, those near the exchange having frequencies higher than those more distant to increase the service area of the exchange. The subscriber will be provided with a frequency translator to change the frequency of the programme received from his line to that appropriate his receiver, the frequency translator utilizing the pilot tones received from the exchange and being located on or outside the subscribers premises.
Patent GB-610797-A (GB)
Title: Improvements in mould culture
IPC: C12N1/34
Filed: 1946-05-17
Abstract: A process for the manufacture of chemical substances produced by the growth of moulds on the surface of an aqueous nutrient medium comprises producing a layer of foam on the surface of the medium at or about the time of inoculation with the moulds.  The foam may be produced by agitation or air blowing, optionally with the addition of a foaming agent such as a hydrolysis product of a protein such as casein in conjunction with oxidisable metallic salts such as ferrous sulphate; malt wort; or a water repellant clay made by treating china clay with an aqueous solution of the ammonium salt of a colophony-stearic acid-maleic acid modified glyceryl phthalate.  In examples, the method is applied to the production of Penicillin by the growth of Penicillium notatum on a medium containing corn steep liquor, lactose, phenylacetic acid, boric acid, sodium nitrate, potassium dihydrogen phosphate, magnesium sulphate, manganese sulphate, ferrous sulphate, and zinc sulphate; and Viridin from the growth of Trichoderma viride; Glutinosin from Metarrhizium glutinosum; and Helvolic acid from Aspergillus fumigatus mut. helvola.
Patent GB-726729-A (GB)
Title: Improvements in navigation instruments
IPC: G01C21/20
Filed: 1953-04-29
Abstract: 726,729. Navigational instruments. IVERSEN, A. J. April 29, 1953, No. 11841/53. Class 97 (3). A navigation instrument comprises concentric scales 5, 7 of which scale 5 is fixed to a housing 1, which scale 7 is carried by a disc 6 rotatable about the common centre of the scales by a rack-and-pinion mechanism 9 operated by an external knob 11. Rotatable relative to the disc 6 about an axis through the centre thereof is a pointer 26, this pointer being clamped to a sleeve to which is pivoted an arm 18. This arm 18 extends at right angles to the pointer and is pivoted at 20, 22 to a ruler 23 so that the ruler may lie flat on a map. In order to find the compass bearing on which to steer, so as to follow a particular course from the lastknown position, the ruler 23 is adjusted until its edge coincides with the course line to be followed, and the housing 1 is moved to register its North-South axis with the nearest meridian M. The magnetic declination and the estimated drift of the ship are then allowed for by rotating disc 6 so that its zero is a certain number of degrees East or West (as the case may be) of the zero of scale 5. The compass course to be steered is then indicated by the graduation on scale 7 with which pointer 26 registers. In order to plot on a map a line representing the correct course, the housing 1 is moved to register its North-South axis with the nearest meridian M, disc 6 is rotated until the angular distance separating the zeros of the scales is equal to the value required to correct for declination &c., and pointer 26 is then adjusted to register with the graduation on the scale 7 which represents the compass bearing which is being followed. Scale 5 then indicates the true bearing of the correct course. A line may now be drawn with the ruler, this line being inclined to the meridian M at an angle equal to that indicated by scale 5.
Patent GB-1152281-A (GB)
Title: Improved method for Packaging Bread
IPC: B65D85/36
Filed: 1967-03-14
Abstract: 1,152,281. Packing in heat-shrinkable bags. AMERICAN CAN CO. 14 March, 1967, No. 11858/67. Headings B8C and B8K. A heat-shrinkable :bag as described in Specification 1,152,282, has internally extending bottom gussets, one of which covers a gas escape aperture and seals it after shrinkage. A loaf is placed in the bag and the half portion of the bag engaging the lower half of the loaf and extending between the bag ends is heat shrunk, the other half being drawn down on to the bread to provide a wrinkle free surface for print &c. The bag open end is sealed'by a removable clip before heat shrinking. The bag may 'be in two halves 6, 7 joined by a seam 8, only the half 7 being heat shrinkable. The gas escape aperture is a hole 5 beneath a gusset 4, the hole being sealed by shrinking of the gusset.
Patent GB-593678-A (GB)
Title: Improvements in the manufacture and use of germicidal compounds
IPC: C07F3/10
Filed: 1943-07-21
Abstract: Organo - mercury compounds, having germicidal and fungicidal properties, are obtained by reacting an alkylolamine with an organic mercury salt of the general formula R-Hg-X (where R indicates an aromatic or heterocyclic group having the mercury attached to a carbon atom thereof and X represents an anion), specified compounds of the above general formula being phenyl mercury acetate, phenyl mercury lactate, toluylmercury malate and pyridyl mercury butyrate. In an example, the reaction in aqueous solution of phenyl mercuryacetate with triethanolamine at room temperature is described, together with the treatment of a cotton fabric with the aqueous solution so obtained.  If the reactants are mixed in the absence of a solvent, the reaction product is obtained as a mass of waxy crystals, which melt at 75 DEG  C.  In addition to the treatment of textiles, the product may also be used for imparting germicidal properties to paper, leather or rubber, by spraying padding, dipping or black-filling.
Patent GB-494719-A (GB)
Title: Improvements relating to silencers serving for the passage of gaseous currents
IPC: F01N1/10
Filed: 1937-04-26
Abstract: 494,719. Silencing gaseous currents. BLANCHARD, J. G. April 26, 1937, Nos. 11921 and 30012. [Class 7 (ii)] An intake- or exhaust-silencer comprises a number of concentric inner and outer casings between which the gases travel circumferentially and a space or spaces in which vacua are formed by the ejector action of the gases. The construction comprises three concentric casings 1, 2, 12, air flowing from a series of inlet openings 18 through series of openings 19, 25 and the central tube 12 to the outlet 8. The annular spaces are divided by longitudinal baffles 16, 17, 20, 21, a vacuum being formed in the smaller spaces 9a, 23 which are open to the gaseous current through openings 14, 24. The tube 12 is provided with baffles 26 which have openings of progressively larger size towards the outlet. Felt linings 27 may be provided. In a modification the inner casing 2 has conical frusta 36, 37 Fig. 3, with short tubes 38, 39 extending within the cones and a tube 40 extending from an end compartment 11 through and beyond the cone 36. Vacua are formed in the cones and compartment 11 and in the blank end of the annular chamber 9. In a further modification a pair of silencer units comprising concentric casings 51, 52 is contained in a box 50, air entering at 60, flowing round the annular spaces 56 and leaving through an end compartment 59. The casings 51 are perforated so that vacua are formed in spaces 64 which may also contain sound absorbent material 66.
Patent GB-289388-A (GB)
Title: Improvements in and relating to back plates for artificial teeth
IPC: A61C13/00
Filed: 1928-04-25
Abstract: 289,388. Scheu, K. April 25, 1927, [Convention date]. Teeth, artificial.-A backing plate 2 for artificial teeth is formed with an integral anchor member 1 bent out therefrom and provided with a longitudinal slot 6. The edges of the parts 4, 4<1> of the backing plate are adapted to engage beneath the heads of the pins 3 in a two-pin tooth, whilst the pin 5 of a single pin tooth, Fig. 5, may be passed into the slot 6 in the anchor member through an enlargement at the end of the slot, and held fast by bending the anchor piece. The Specification as open to inspection under Sect. 91 (3) (a) states also that the backing plate may be used in combination with teeth having non-headed, round or flat pins. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1185351-A (GB)
Title: Class B Amplifier Circuit.
IPC: H03F3/30
Filed: 1967-03-15
Abstract: 1,185,351. Transistor amplifiers. TEXAS INSTRUMENTS Inc. 15 March, 1967 [22 March, 1966], No. 12184/67. Heading H3T. In a class B amplifier having NPN and PNP output transistors Q1 and Q2, each output transistor is fed from an emitter follower transistor Q3, Q4 of the opposite conductivity type and the input circuit R3 interconnects the bases of the input transistors Q3, Q4 and includes a voltage source connected to maintain the bases of the input transistors at substantially constant but different potentials. The current through the resistor R3 is maintained constant by the current source transistor 52; this enables the standing current necessary to reduce the crossover distortion to be reduced to the minimum. By using transistors Q1-Q4 having similar base-emitter characteristics variations due to temperature changes are minimized. If the transistors Q3, Q4 have different characteristics from the output transistors Q1, Q2 temperature effects can be minimized by using emitter resistors R1, R2 having positive temperature coefficients. Also the transistors Q1- Q4 may be mounted on the same heat sink or may be formed in an integrated circuit. The output stage operates in class B and the input to Q3 and Q4 may be obtained by connecting terminal 62 to the outputs 64 or 66 of a differential amplifier 80, 82 which is fed from a differential amplifier 72, 74, 76 and 78. A transistor 84 completes a common mode rejection loop back to a current source transistor 86 of the first differential amplifier. In the circuit shown the differential amplifier may be used without the output stage Q1-Q4 by connecting terminal 62 to ground. In an alternative circuit (Fig. 4, not shown) the output from the differential amplifier 80, 82 (142, 144) may be connected to the base of Q4 and the transistor 52 (146). is then connected between the base of Q3 and the negative supply; also a transistor (176) or transistors (Fig. 3, not shown), connected as a diode or diodes may be connected to provide a reference voltage at the base of transistor 86 (174, 122). Constant current through R3 may be provided by two similarly-connected transistors 52, (Q5, Q6, Fig. 1, not shown). The transistors Q1-Q4 may be replaced by Darling- ton pairs as may the transistor in an input differential amplifier (Fig. 3, not shown).