baber/WOPTO huggingface dataset:
Patent GB-498533-A (GB)
Title: Improvements in or relating to silencers for exhaust and other gaseous currents
IPC: F01N1/24
Filed: 1937-07-30
Abstract: 498,533. Silencing gaseous currents. FRANCOIS CEMENTATION CO., Ltd., NEELANDS, A. R., and KLOPSTOCK, K. July 30, 1937, No. 21160. [Class 7 (ii)] A silencer for exhaust or other gaseous currents, of the kind comprising a perforated tube surrounded by a casing containing soundabsorbing material, the following materials are used in combination : (1) mineral or metallic granular materials such as Betonac hardening materials ; (2) mineral wool; and (3) woven or tangled metal wire or strip, preferably copper tangle. The Figure shows a perforated tube A passing through a casing B containing copper tangle D, glass wool E, and granular material F. The capacity of the chamber may be varied by making the tube A, A<1> telescopic one part A being connected to the casing, and the other part A<1> to a partition C slidable within the casing. In another form, a second annular series of the three materials may be arranged around the first.
Patent GB-769448-A (GB)
Title: Improvements in or relating to statistical machines
Inventor: MARPLES BERNARD PHILIP
Filed: 1954-07-22
Abstract: 769,448. Statistical apparatus. POWERSSAMAS ACCOUNTING MACHINES, Ltd. May 26, 1955 [July 22. 1954], No. 21478/54. Class 106 ( 1 ). Sensing means for reading perforated record cards comprises, for each column of the card, a contact leaf 1 of electrically non-conductive material carrying a row of contact studs 8, one for each data indicating position of the column and a line 2 of electrically conductive material printed on the contact leaf 1 to connect each stud with an outside electrical circuit, the leaf carrying also two rows of common contact studs 10 joined by printed conductors 3, 4, and a normally inactive contact pin 16 for each data indicating position adapted to be displaced relative to the leaf by engagement with the record card so as to make or break electrical contact between the studs 8 and one of the rows of common studs 10. The contact leaves 1 are held between upper and lower comb-members 11, 14 so as to be equally spaced across the area of the card. The contact pins 16 are arranged in the spaces between the leaves and, as shown in Figs. 8, 9, consist of upper and lower parts 16a, 16b slidably mounted in plates 20, 15, and connected by a U-shaped member 17. A contact spring 18 aligned with the parts 16a, 16b is bent at 19 so as to contact with the head of a stud 8 on one leaf and the head of a stud 10 on the adjacent leaf. In the raised, or active position of the pin the spring 18 makes contact between the stud 8 and a stud 10 of the upper row of common studs and in the lower or inactive position contact is made between the stud 8 and the lower common row of studs 10. The pins are retained in either position by the frictional engagement of the spring 18. The cards are fed one at a time between perforated plates 25, 26 and registered by an end stop 27. The plates then rise so that the card is brought into co-operation with push rods 21 coacting with each pin 16. Where a data indicating position of the card is not perforated the corresponding pin 16 is raised and contact between the line 2 of a stud 8 and line 4 is broken and contact with line 3 is made. After the sensing operation the pins are returned to their lower position by a plate 32 which is brought down by links 33 and raised again before the next sensing operation. Connection is made to the ,printed conductors 2, 3, 4 on the contact leaves by spring contact elements 29 mounted on side plates 30. Wires 28 are soldered to these elements.
Patent GB-970001-A (GB)
Title: Variable speed electric motors
Inventor: LEONARD ALAN ROY
IPC: H02K27/20
Filed: 1962-06-05
Abstract: 970,001. Automatic speed control. BRUNT VARIABLE SPEED MOTORS Ltd. June 5,1963 [June 5, 1962], No. 21593,/63. Heading G3R. A double repulsion motor driving a ring spinning machine has its brush-gear coupled to a servomotor which is controlled in accordance with an error voltage derived from the comparison between a reference voltage developed across a potentiometer 17 and a voltage derived from a tachometer generator which is driven by the repulsion motor. In addition, cyclic changes in the speed of the machine are provided by potentiometers 44, 46, which impose variations upon the voltage supplied to the comparator by the tachometer generator. Upon starting the repulsion motor, the speed at which it will run is determined by manual variation of potentiometer 17. Rotation of cam 32, which occurs with building of the cop in correspondence with movement of the lifter rail of the spinning frame, causes pivotal movement of lever 28 about fulcrum 29. The spindle of potentiometer 17 is thus rotated so that the machine is accelerated during the formation of the cop base, and, when the desired maximum cop diameter is reached, the lever 28 remains stationary until the cop is almost complete, whereupon the cam 32 permits a fall in speed. The shape of the cam 32 may be manually adjustable. Variation of the spacing between cam 32 and follower 31 is effected by displacement of carriage 20, together with potentiometer 17 and lever 28 by turning knob 26. Cyclic changes in the machine speed are afforded to maintain the yarn tension at a desired value during the winding operation. For this purpose, cam 53 is driven in synchronism with the reciprocation of the lifter rail, whilst cam 59 is driven at a lower speed, equal to that of the cam 32. Initially, lever 51 is held clear of the cam 53 by the cam 59, the potentiometers 44, 46 having no effect on the speed of the repulsion motor. As the cam 59 rotates, it lowers lever 51 which is increasingly influenced by the cam 53, the oscillation of the lever 51 increasing until the cam 59 no longer influences movement of the lever. As the lever 51 oscillates it varies potentiometer 46 cyclically thereby imposing cyclic changes in the speed of the repulsion motor, such changes being co-related with the effective diameter of the cop. Adjustment of the amplitude of the cyclic change is effected by manual adjustment of potentiometer 44, changes in the setting of which vary the voltage-drop across potentiometer 46. Specification 771,297 is referred to.
Patent GB-702446-A (GB)
Title: Knitted garments
IPC: A41D1/04
Filed: 1952-08-29
Abstract: 702,446. Knitted garments. MONARCH KNITTING CO., Ltd. Aug. 29, 1952 [May 23, 1952], No. 21777/52. Class 141 A method of manufacturing a sleeved knitted garment from separately formed sleeve and body portions 3, 1, at least the lower part 4 of each sleeve-body seam lying in a straight diagonal line from the armpit upwards across the chest is characterized in that the sleeve and body portions are cut from normal knitted fabric and the seam part 4 is formed by stitching together the portions with their edges facing in the same direction and folding back the edge parts 1a, 3a and stitching each part to its portion of fabric at 6 and 7, giving the appearance of a fullyfashioned garment. The upper part 5 of the sleve-body seam may be vertical or extend to the neck opening' 2.
Patent GB-141010-A (GB)
Title: Improvements in mechanism for starting gas engines
IPC: F01L13/00
Filed: 1919-09-05
Abstract: 141,010. Soc. Anon. J. Cockerill. April 3, 1919, [Convention date]. Starting.-Relates to compressed-air starting- devices of the kind in which a lever interposed between an actuating-cam and an airinlet valve can be caused to assume any one of three different positions, (1) to permit the admission of compressed air for starting, (2) to disengage the valve from the cam during normal working, or (3) to open the valve to relieve compression while the engine is being brought to the starting position. According to the invention, the displacements of the lever are produced by turning a hand-wheel operating a second lever carrying a slide working in a guide slot in the first lever. In the form shown, the frame 2 carries a shaft 4 on which are mounted cams 5 controlling compressed-air inlet valves 6, each mounted in a casing 7 communicating with a pipe connecting at will either with a compressed-air supply or with the atmosphere. The valve is kept on its seat by a spring 13, and its rod is connected to a guide-cup 14 to which is pivoted a slotted link carrying the cam-bowl 34, the position of the link being controlled by a lever 19 geared to a hand-wheel 25 rotatable into any one of three positions indicated on a disk 33. In the position shown, the bowl 34 is actuated by the cam for starting the engine; in the second position, the lever 19 is swung clockwise and the bowl 34 is thrown up out of operative engagement with the cam; while in the third position, the lever 19 is swung further clockwise, causing it to act on the end of the guide-slot 17 and push the valve 6 into the open position, so that air may escape from the cylinder through the easing 7 to the supply 'pipe, which is previously placed at exhaust.
Patent GB-479936-A (GB)
Title: Improvements in or relating to thermionic valve amplifiers
IPC: G01S3/14
Filed: 1936-08-08
Abstract: 479,936. Directive wireless signalling ; valve circuits for wireless reception. PLESSEY CO., Ltd., and BAILEY, C. E. G. Aug. 8, 1936, No. 21894. Addition to 479,689. [Class 40 (v)] In a direction finder of the type described in the parent Specification in which two mutually perpendicular aerials feed independent amplifiers V1, V2 and an A.V.C. potential is derived from a non-directional aerial, compensating means are provided to maintain a constant relationship between the gains of the amplifiers over a range of gain control. The grids of valves V1, V2 are connected to variable tappings T1, T2 respectively on a potential divider RP supplied from the common A.V.C. potential source, and their cathode resistances R1, R2 are variable. The resistances R1, R2 are preliminarily adjusted to match the gains for high gain and the tappings T1, T2 for low gain.
Patent GB-446644-A (GB)
Title: A method of drying whale or the like flesh
IPC: A23B4/03
Filed: 1934-07-26
Abstract: 446,644. Drying flesh. NYGAARD, J. O., 1B, Underhaugsveien, Oslo, Norway. July 26, 1934, No. 21912. Void [Abridged as open to inspection under Sect. 91 of the Acts, Jan. 28, 1935]. [Class 34 (ii)] The drying of the flesh of mammiferous sea-animals such as whales is facilitated by treating the flesh, preferably in a finelydivided state, with cold or tepid water to extract blood, glue, and like matters, and then drying the flesh. Before separation of the extract from the flesh, the whole may be heated to 70‹ C. or more for a short time.
Patent GB-353685-A (GB)
Title: A device for protecting hats and the like from being spoilt whilst being fitted
IPC: A42B1/04
Filed: 1930-07-19
Abstract: 353,685. Hats. BATTERSBY, F., 21, Nicholl Square, London. July 19, 1930, No. 21922. [Class 63.] A hygienic cap for wear when fitting hats or other head-coverings is made of thin paper or transparent cellulose product, adjustable in size on the head of the wearer, and provided with means for removing the cap after use, which means, pre ferably, ensure the destruc tion of the cap. The side of the cap may have over lapping flaps 4, 5, the outer flap being gummed at the corner to facilitate size ad justment, and to leave a loose edge by which the cap may be torn after use. Ir a modification, pleats may be provided at the sides o: the cap, fastened by sticking down the edges or by a piece of gummed material across the opening. A strip of tape 8 with a projecting tab 9 is provided for tearing the cap to remove it after use. A thin cord may be substituted for the tape, or a double line of perforations may lead from the end of a tab to the edge of the cap.
Patent GB-1195927-A (GB)
Title: Methyl Methacrylate Resin Denture Plates and Method of Making Same.
Inventor: CORNELL JOHN ALSTON
IPC: A61K6/083
Filed: 1968-05-09
Abstract: 1,195,927. Dental plates. J. A. CORNELL. 9 May, 1968, No. 21923/68. Heading A5R. [Also in Divisions B4, B5 and C3] A moulded methyl methacrylate resin denture plate comprising a polymerised mixture of methyl methacrylate polymer and methyl methacrylate monomer in which there is embedded from 0.1-10% by weight of vein-simulating short length strands of non-plasticised fibres of polyvinyl chloride having an AFNOR index greater than 450, said polyvinyl chloride fibre having a length between 3/32 and 7/8 inch and being from 3-10 denier is made by mixing the fibres of polyvinyl chloride with pearls of methyl methacrylate polymer and liquid monomer, flattening the dough formed, cutting out and applying strips over the buccal and labial surfaces of a denture mould and curing at a temperature of 160-212‹F. The methyl methacrylate polymer may be plasticised with 5% dibutyl phthalate and the resin mixture may also contain 3-4% of a butadiene-styrene copolymer The mixture may also contain dyes for the resin.
Patent GB-705429-A (GB)
Title: An improved joint for flexible shafts or rods
IPC: F16C1/08
Filed: 1951-09-19
Abstract: 705,429. Rod couplings. WARD, E.L. Sept. 16, 1952 [Sept. 19, 1951], No. 21940/51. Class 99 (1). [Also in Group XXIV.] The sections 1, 1 of a flexible shaft or rod for threading cables through conduits or cleaning or clearing drains are connected by two readily-sep arable parts, and a one-way clutch device allows the sections to be rotated relative to one another in one direction, but gives a solid drive in the other direction whilst permitting the application of an end thrust to the shaft or rod. The clutch device may comprise projections on parts 2, 8 connected to adjacent sections 1, 1, each projection having a. flat radial face 12 and a rounded face 13, the faces 12 engaging together to allow the sections 1, 1 to be rotated together and the faces 13 sliding Àone over the other to allow one section to rotate relative to the other. The parts 2, 8 may be connected by a screwed sleeve 3, the part 8 having limited end movement in the sleeve to allow the faces 12 to disengage. The coupled sections may be coiled onto a swift, and the section just clear of the swift may be rotated by hand or an electric motor.
Patent GB-1005263-A (GB)
Title: Improvements in vibrators for compacting plastic masses
IPC: B06B1/16
Filed: 1962-06-07
Abstract: 1,005,263. Vibratory mechanism. VIBROVERKEN A.B. June 7, 1962 [June 14, 1961], No. 21988/62. Heading F2X. [Also in Division B1] A submersible vibrator for concrete has a rigid rotatable pin 2 in a tubular easing 1 having a yieldable section 6 which permits the casing to be deflected so that the annular track 5 is brought into contact with the track 4 on the pin. The casing then performs a circular conical motion without rotating; the dimensions and rate of rotation of the pin and easing may be chosen to provide a vibration frequency higher than the rotation frequency of the pin. The pin is driven by a flexible shaft 7 and has an oil seal 8. Specification 489,250 is referred to.
Patent GB-319105-A (GB)
Title: Improvements in cam mechanism for transmitting power
IPC: B66F3/00
Filed: 1928-07-30
Abstract: 319,105. Ott, F. W. July 30, 1928. Cam, mechanism.-An arrangement for moving a slidable member against a heavy load, as in lifting-jacks, stated also to be applicable to drive a crank shaft, comprises a rod or plunger 31 mounted in a casing or holder 10 and adapted to be moved axially by the cumulative action of a series of opposed transverse cam or wedge members 36, 44. The wedges are operated simultaneously by radially-movable rods 13 guided by radial slots 12 in the ends 11 of the casing and engaging curved slots 14 in rotary actuating discs 15 which, so as to move together, are connected by concentric pinions 19, 29 thereon meshing with pinions 20 on a pair of lay-shafts 21 journaled in the cover-plates. Rollers 40 interposed between the wedges, and a thrust block 33 on the inner end of the plunger, are guided by longitudinal grooves 35 in the casing. The discs 15 may be actuated mechanically, but, as shown, Fig. 3, the upper disc is formed with a recessed toothed portion 24 to enable it to be rotated through a limited arc by a pinion 23 on a hand lever 25, which is provided with a reversible. ratchet connection in its boss and with a separate ratchet wheel 26 co-operating with a sustaining detent 27.
Patent GB-462658-A (GB)
Title: Improvements in the manufacture and production of trihydroxydibenzanthrones and their quinones
IPC: C09B3/34
Filed: 1935-08-06
Abstract: Bz-Trioxydibenzanthrones and their quinones are prepared by heating a dibenzanthrone-Bz2.Bz2<1>-quinone which contains in the Bz3-positions no amino groups but which contains hydrogen in at least one of the Bz3-positions with concentrated or moderately dilute sulphuric acid in the presence of small amounts of an oxidizing agent, the quantity of which is quite insufficient to introduce a further hydroxyl group in the molecule.  Suitable oxidizing agents are nitrosyl sulphuric acid, air, vanadium, mercury or selenium compounds.  The quinones used as starting materials may be prepared in the same operation, for example, from Bz2.Bz2<1>-dioxy- or Bz2.Bz2<1>-dialkoxydibenzanthrones. In examples: (1) Bz2.Bz2<1>-dibenzanthronequinone is heated with 39 per cent sulphuric acid containing a little ammonium vanadate at 110--115 DEG  C.; ammonium vanadate may be replaced by selenious acid; this quinone may alternatively be heated in 90 per cent sulphuric acid in presence of a little nitrosyl sulphuric acid at 110--115 DEG  C., or in presence of a little vanadium pentoxide and nitrosyl sulphuric acid at about 110 DEG  C. while leading in air; (2) brominated dimethoxydibenzanthrone (prepared according to example 1 of Specification 205,304, [Class 2 (iii)]) is heated in sulphuric acid monohydrate in presence of acetic acid and a little ammonium vanadate at 195--200 DEG  C.; a chlorinated dimethoxydibenzanthrone prepared according to Specification 333,762, [Class 2 (iii)], may similarly be used as starting material; (3) 2.2<1>-dibenzanthronyl is treated with 84 per cent sulphuric acid and pyrolusite, and the product heated in 92 per cent sulphuric acid in presence of a little vanadium pentoxide and nitrosyl sulphuric acid.  Specifications 193,431, 295,506, [both in Class 2 (iii)], and 461,885, also are referred to.
Patent GB-897575-A (GB)
Title: Methods of and apparatus for preventing surging in single-stage or multi-stage radial flow compressors
IPC: F04D27/02
Filed: 1959-06-29
Abstract: 897,575. Centrifugal compressors. SULZER FRERES S.A. June 29, 1959 [July 30, 1958], No. 22302/59. Class 110 (1). A method of operating a single or multistage centrifugal compressor near the surge limit comprises discharging a part of the working medium at a point between the inlet and outlet of the rotor, to a region of lower pressure than that of the rotor delivery. In the rotor housing, a wall 8 bounding the open side of the blade passages 4 has an annular slit 9 located one-third of the blade length from the upstream end. The slit 9 leads into a chamber 10 which communicates through a flow regulating valve 12 with the atmosphere or the suction side of the compressor. To prevent surging the valve 12 is opened to give stable working conditions. Instead of a flow-regulating valve the width of the slit 9 may be made variable. In multi-stage compressors any number of the stages may have outlets for the discharge of the working medium and the controls for varying the outlets may be interconnected. Only the last stage of a compressor may have means for intermediate discharge of the working medium. In compressors with shrouded rotors bores are provided in the shroud plates for the intermediate discharge of working medium. In an alternative construction, the slit 9 is replaced by a number of separate passages to form the intermediate outlet.
Patent GB-1356745-A (GB)
Title: Apparatus for determination or laying off of courses on a chart
IPC: G01C21/00
Filed: 1972-05-12
Abstract: 1356745 Navigational plotting instruments OOJOHANSSON 12 May 1972 22335/72 Heading G1X A navigational course plotter comprises a base-plate 16 to which a chart 2 may be secured, parallel racks (10) Fig. 2, (not shown) mounted along two opposite sides of the base-plate with their teeth facing the surface of the base-plate, a shaft 3, with its axis in a plane parallel to the chart surface, guided for movement in said plane in a direction normal to its axis by the engagement of pinions (9) on its ends with the racks (10), and a course rule 1 connected by a shaft 13 perpendicular to the chart surface to a carriage 8 slidable along the shaft 3, a spring 12 acting between the shaft 13 and the carriage 8 to press the course rule 1 against the chart surface and to press the pinions (9) on shaft 3 upwardly into mesh with the racks (10). The shaft 13 is secured at its upper end to a cursor 6 rotable over a protractor 5 adjustably mounted on the carriage 8. The protractor is viewed through a magnifying lens of the cursor 6. The carriage 8 may be locked to the shaft 3 by a screw 11 acting via a plastics plug 18. Interchangeable course rules 1 are provided having distance scales to suit the scales of particular charts. Before use, the protractor 5 is adjusted relative to the carriage 8 to allow for magnetic deflection or deviation for the particular chart being used.
Patent GB-1115378-A (GB)
Title: Improvements in or relating to smokers' ashtrays
IPC: A24F19/00
Filed: 1966-05-19
Abstract: The shelf of the ashtray of the parent Specification is replaced by a shelf comprising a rectangular frame and a plurality of parallel rods or bars formed integrally with or fixed to the frame on the upper side thereof and extending across the shelf from the front to the rear thereof, the spacing between adjacent rods or bars being such as to receive and support a cigarette or cigar.
Patent GB-1503356-A (GB)
Title: Pourable agglomerate of builder substances for washing and cleaning compositions
IPC: C11D3/12
Filed: 1975-05-23
Abstract: The transportability and storability of moist boron silicates and aluminium silicates is to be improved without costly drying processes being necessary. Furthermore, the intention is to be able to use such boron and aluminium silicates in a straightforward manner in detergents. This is achieved by aggregates which consist of the following ingredients:   A) 20-70% by weight of a silicate, defined in Claim 1, of the general formula          (cat2/nO)x.Me2O3.(SiO2)y  and B) 30-80% by weight of at least two water-soluble salts which contain water of crystallisation and are selected from the group of triphosphates, pyrophosphates, orthophosphates, sulphates, carbonates, metasilicates and borates of the alkali metals, especially of sodium.   These aggregates are produced by mixing 25-75 parts by weight of moist, finely divided, water-insoluble silicates of the stated formula, which have a water content of 30-60% by weight, with 25-75 parts by weight of at least 2 of the said finely powdered triphosphates, pyrophosphates, orthophosphates, sulphates, carbonates, metasilicates and borates of the alkali metals.
Patent GB-369851-A (GB)
Title: Improvements in needle thread tension regulating devices for sewing machines
IPC: D05B47/00
Filed: 1931-08-08
Abstract: 369,851. Sewing-machines. JONES' SEWING MACHINE CO., Ltd., and HALL, J., Guide Bridge, near Manchester. Aug. 8, 1931, No. 22472. [Class 112.] A needle-thread tension device has a fixed stop controlling the amount of regulation of the adjusting nu@. In the form shown in the Figure, the tension discs 12, quick-release 15, spring 13, adjusting nut 6, and retaining nut 18 are mounted on a spindle 1. A stop 5 moves in a recess 8 in the tension-adjusting nut and engages a screw 9 so that the nut can only be rotated once in either direction, preventing the application of too great or too slack a tension. A spring plunger 20 bears against the rear face of the nut 6 to keep it in adjusted position. Other modifications describe different positions of the stop and adjusting nut relative to the tension discs.