baber/WOPTO huggingface dataset:
Patent GB-546001-A (GB)
Title: Improvements in or relating to the control of inflatable units, such as airfoil inflatable units for preventing ice accumulation
IPC: B64D15/16
Filed: 1940-12-31
Abstract: 546,001. Valves. GOODRICH CO., B. F. Dec. 31, 1940, No. 18251. Convention date, Jan. 19. [Class 135] [Also in Group XXXIII] Relates to apparatus for inflating extensible units and to means for controlling the inflation, particularly applicable to inflatable units or shoes on aeroplane wings and other parts for prevention of ice-formation. On the leading edge of the wing 11, Figs. 3, 4, are mounted inflatable members 15 . . . 18 and similar members 19 ... 21 are provided at the tail group. Each member includes one or more inflatable tubes there being five such tubes 24 ... 28, Fig. 4, in the member 16, say three in members 19, 20 and one in member 21. The tubes of each unit are inflated in groups in alternation e.g. in member 16, Fig. 4, the tubes 24, 26, 28 are inflated and deflated together and so are the tubes 25, 27 thus reducing to a minimum any aerodynamic disturbances. As shown there are ten inflatable elements each element being regarded as a tube or group of tubes of an inflatable member. The apparatus requires the provision of air pressure and suction lines P, S extending to all the elements, and connected to pumps 29, 30. Each inflatable element is connected to these lines through valves V1 - V10 shown enlarged in Fig. 1. Each valve comprises a housing 31 enclosing a slidable valve 39 consisting of a constricted portion 40 with throat 42, and a sleeve portion 41 with ports 45 . . . 47 adapted to control suction, pressure and exhaust passages S, P. E respectively. The inflatable element is connected to the valve chamber by pipes D, 35. A crosshead 49 secured to the valve is adapted to slide over a pin 53 and is maintained in a central position by springs 51, 52. This crosshead has a ball-and-socket connection to a lever 57 connected to a plunger 61 of a solenoid W the movements of the plunger being limited by arms 64, 65 thereon engaging adjustable stops 66, 67. Current is sent to each solenoid to give a starting impulse by an arm T engaging contacts. In the position shown the element is subjected to suction through S. When arm T makes contact the valve is moved to the left cutting off S and opening P to send pressure air to the element. The flow of such air through the throat 42 maintains the valve in this position even after arm T has left a contact. When inflation is completed the pressure on the valve drops and it is returned temporarily to midposition by spring 52. This closes passage P and opens S thus withdrawing the air. This air flow now urges the valve to the right to close S and opens exhaust to E. When the air has been exhausted, the valve is again returned to midposition by spring 51 and the element is subjected to suction and held deflated.
Patent GB-1187495-A (GB)
Title: Improvements in or relating to Perfluorinated Polymers
Inventor: TIERS GEORGE VAN DYKE
IPC: C08G65/00
Filed: 1967-04-20
Abstract: 1,187,495. Polymers containing fluorine. MINNESOTA MINING & MFG. CO. 20 April, 1967, No. 18313/67. Addition to 1,070,294. Heading C3R. Polymers containing essentially only carbon, oxygen and fluorine in which the ratio of fluorine to carbon is 2: 1 and the ratio of carbon to oxygen is from 2 : 1 to 8: 1, contain units and units where R<SP>1</SP># is a perfluoroalkylene group of 2 or 3 carbon atoms and R<SP>2</SP># is a perfluoroalkylene group of 0 to 21 carbon atoms. The polymers are obtained by pyrolyzing mercury or silver salts of perfluoro dicarboxylic acids containing only carbon, fluorine and oxygen atoms and having at least 6 carbon atoms and containing at least one linking oxygen atom in the carbon chain; carbon dioxide and elemental mercury or silver are obtained as by-products. Salts of other perfiuorodicarboxylic acids may be included as cross-linking agents. Examples are given.
Patent GB-365969-A (GB)
Title: Improvements in machine guns
IPC: F41A19/31
Filed: 1931-06-25
Abstract: 365,969. Machine guns. FEENY, C. J., 73A, Queen Victoria Street, London.- (Panstwowe Wytwornie Uzbrojenia; 29, Dworska, Warsaw.) June 25, 1931, No. 18386. [A Specification was laid open to inspection under Sect. 91 of the Acts, June 26, 1931.] [Class 92 (ii).] Relates to firing mechanism for machine guns of the Colt type in which a lever 1 engages a fixed recess 6 during rearward movement of the breech-block 14 in order to cock the firing pin 11 into engagement with a verticallysliding sear 12. According to the invention, the recess 6 is formed in a slide 3 which can be actuated by the trigger mechanism 13, against the action of a spring 7, to cause a projection 2 on the cocking lever 1 to release the sear. The spring 7, in the construction shown, serves also to actuate a catch 8 for retaining the vertically-sliding rear cover 9.
Patent GB-558515-A (GB)
Title: Improvements in or relating to photographic apparatus employing roll film
IPC: G03B19/04
Filed: 1942-12-28
Abstract: 558,515. Photographic apparatus employing rollfilms. KODAK, Ltd. Dec. 28, 1942, No. 18424. Convention date, Feb. 13. [Classes 97 (i), 98 (i) and 98 (ii)] Photographic apparatus such as a camera or printer, or a film projector, employing a film spool S having end flanges with peripheral rims 25, 26 spaced by a distance less than the width of the film, is provided between the spool and the film gate with a film guide roller 30 the film contacting surface of which is of greater diameter at its ends than at its centre so that the film passing from or to the spool is flexed transversely to permit it to pass between the rims of the spool flanges. In the roll-film camera shown, the spool is inserted axially into the supply chamber 13, through an end which is normally closed by a hinged section 7 of the top wall of the camera. The film is fed, by rotating the spool, between an exposure frame 38 and pressure-plate 41 into a take-up chamber 11 containing a curved leaf spring 12 which assists the coiling of the film, and is subsequently re-wound on to the spool S. The exposures may be made either during the unwinding or re-winding of the film.
Patent GB-1391197-A (GB)
Title: Keyboard
IPC: B41J5/14
Filed: 1972-04-20
Abstract: 1391197 Keyboards ADDRESSOGRAPH MULTIGRAPH CORP 20 April 1972 [23 April 1971] 18477/72 Heading G4H [Also in Division B6]  An encoding keyboard comprises keystems 40a co-operating with interposers 20 through leafsprings 52 to prevent a repeat power action. The leafspring 52 includes a projection 58 which engages a shoulder 31 on the interposer on depression of the key to bring the interposer into contact with a filter shaft 34. As the interposer is driven leftwardly by the filter shaft 34, the projection 58 slips off the shoulder 31 such that on return of the interposer while the key remains depressed, the leafspring is deflected by the edge of the shoulder 31. Some keys may be depressible to a greater extent so that engagement of the projection 58 on the top surface of the interposer adjacent the shoulder 31 holds the interposer in operative position with respect to the filter shaft to permit repeat impressions. The interposers 20 act on bails (19, Fig. 2, not shown), to close switch contacts in code combinations.
Patent GB-787436-A (GB)
Title: Improvements in or relating to method and apparatus for recording
IPC: G11B5/03
Filed: 1955-06-27
Abstract: 787,436. Magnetic recording apparatus. ARMOUR RESEARCH FOUNDATION OF ILLINOIS INSTITUTE OF TECHNOLOGY. June 27, 1955 [July 1, 1954], No. 18483/55. Class 40 (2). A magnetic recording apparatus employs a transducer in which the gap of said transducer is substantially greater than the maximum wavelength of frequencies being recorded by said transducer such as to utilize intensively a thickness of the record medium of the order of 1/ 8  or less the width of the gap. The said frequencies are recorded either without highfrequency bias or with only about a tenth of the bias normally used for conventional recording purposes, i.e. where the gap width is less than the minimum wavelength of frequencies to be recorded. One kind of transducer, described with reference to Fig. 5, has a gap with the leading edge rounded, as shown at 21a, and the trailing edge sharp, as shown at 22a. The trailing pole 22 may have a relatively smoothly rounded trailing edge, as shown at 22b. The leading pole 21 may even be omitted if desired. By way of example, with the record medium travelling at 200 ins. per sec. and the transducer having a gap width of 0.0005 ins., a maximum wavelength of 0.00005 ins., corresponding to a frequency of 4 megacycles, may be recorded without the use of conventional bias. The system is not limited to the recording of high-frequency signals, and signals corresponding to longer wavelengths can be recorded by modulating a high-frequency carrier with the desired low-frequencies, using either amplitude, frequency, or phase modulation. In an alternative method, frequencies below a certain value may be separated by a low-pass filter and recorded on a separate track by conventional means using normal high-frequency bias.
Patent GB-692309-A (GB)
Title: Improvements in or relating to articles of footwear
Inventor: DANIELIUS EDGARUS
IPC: A43B13/14
Filed: 1950-07-25
Abstract: 692,309. Footwear. CHAMELEON SHOE CO. (ENGLAND), Ltd. July 4, 1951 [July 25, 1950], No. 18578/50. Class 17 (ii). Edge portions of a shoe upper 7 or of flexible sheet material 8, 8a, attached thereto, are formed into closed loops which encircle bar or rail members 2, with which the sole 3 is formed, to attach the upper to the sole. The members 2 are formed by parts of the length of a longitudinal slot 4 formed between two walls 1, 2, forming part of e.g. integral with, the sole structure 3. The slot may stand up from the top face of the sole or formed thereon or in the edge of the base. The base is made wholly or largely of moulded or mouldable plastic or other materials, e.g. metal, whose inherent rigidity and tensile strength is of the same order or better than such mouldable, pressable materials.
Patent GB-802839-A (GB)
Title: Improvements in or relating to spectacle frames
IPC: G02C5/20
Filed: 1956-06-15
Abstract: 802,839. Spectacles. BAKER, E. P. May 21, 1957 [June 15, 1956], No. 18595/56. Class 97(1) A side arm of adjustable length comprises an outer element having slidable therein an inner element having a resilient portion urging the two elements into frictional or locking engagement and carrying an abutment projecting externally of the outer element for operation by the finger to release or lessen the said engagement. As shown, the outer element is a tube having a hinge connection 10, a longitudinal slot 5 and a series of apertures 7. The inner element 1 is of resilient material and has a forked end portion, the arms 2, 3 of which are compressed when inserted in the element 4. The arm 2 has a projection 6 which locks the two elements by engagement with one of the apertures 7, and also carries an abutment 8 projecting through the slot 5 by which the forked ends, 2, 3 may be manually drawn together to release the lock and allow relative sliding movement between the two elements.
Patent GB-1530504-A (GB)
Title: Carrier sleeve for printing cylinder
IPC: B41F5/24
Filed: 1976-05-06
Abstract: 1530504 Printing apparatus MOSSTYPE CORP 6 May 1976 18659/76 Heading B6C A sleeve for mounting a printing plate on a cylinder comprises three layers formed by winding plastics tape helically so that two layers are wound in opposition to the other layer. The two layers wound in one direction are offset so that the outer layer of the two covers the gaps in the inner layer. The sleeve is slid on to a cylinder core from which air jets are emitted to stretch the sleeve and once in position the sleeve is allowed to contract to a tight fit.
Patent GB-363694-A (GB)
Title: Improvements in or relating to moulding mixtures and moulded articles
IPC: C08G8/28
Filed: 1930-06-18
Abstract: Phenol-hexamethylenetetramine condensation products are made by acting on a phenol with hexamethylenetetramine (or mixtures of formaldehyde and ammonia) to produce a reactive resin and adding to the partially reacted ingredients a retarding agent comprising one or more of the following:--a natural resin, e.g. rosin, dammar and hard manila, xylidines, toluidines, benzidine and diphenylamine and thereafter continuing the reaction.  When incorporated with fillers, e.g. mica, moulding mixtures are obtained which yield moulded articles characterized by very low phase angle difference and electrical power factor.  The resins obtained by heating the potentially active resins to the infusible state are also specified as fillers.  In an example, phenol (3 mols.) and hexamethylenetetramine (1 mol.) are reacted cautiously until the viscosity has increased, when melted rosin is stirred in and the reaction continued.  Various moulding mixtures are specified.  The resins may also be used for varnishes and impregnation purposes.ALSO:The resins made by acting on a phenol with hexamethylenetetramine (or mixtures of formaldehyde and ammonia) to produce a reactive resin and adding to the partially reacted ingredients a retarding agent, i.e. a natural resin, xylidines, toluidines, benzidine, or diphenylamine and thereafter continuing the reaction are mixed with fillers to produce moulding mixtures. Several examples are given.
Patent GB-256239-A (GB)
Title: Improved apparatus for separating impurities from petrol and the like
IPC: F02M37/24
Filed: 1926-07-27
Abstract: 256,239. Amet, P. July 28, 1925, [Convention date]. Separating by gravity. -Water and other impurities are separated from petrol and the like in a vessel a, in which the fuel, supplied through an inlet e, passes round an annular compartment d, fitted with baffle plates having apertures f successively of larger size, and down a pipe h. The stream spreads out between plates j and at the edge the water falls while the fuel rises, passing through an aperture k, ball valve l and an aperture l<1> into an inner annular compartment m having baffles similar to those of the compartment d. The fuel passes away through an aperture o, chamber p and outlet q. Water collecting at the bottom raises a float r which is connected by a rod v to the ball l and to a lower ball s controlling the water outlet. The latter is also provided with a handoperated valve t. Strainers may be fitted in the petrol inlet or at the apertures in the baffle plates.
Patent GB-900538-A (GB)
Title: Improvements in or relating to printing magnetic sound record tracks from one magnetic sound record sheet to another
IPC: G11B5/00
Filed: 1959-06-02
Abstract: 900,538. Printing magnetic sheet records. TOKYO DENKI KAGAKU KOGYO KABUSHIKI KAISHA, and HOSHINO, Y June 2, 1959 [June 3, 1958], No. 18868/59. Class 40 (2). Master and print sheets, M, P are located by pins 13 in a holder H which is fed between rollers 6, 6<SP>1</SP> containing printing electromagnets (Fig. 3, not shown). A drive motor 26 and the electromagnets are energized by means 34 operated by loading the holder H into the printer. Several variants of holder are described. The process is particularly intended for records as in Specification 833,266, playable on machines as in Specification 850,291.
Patent GB-630649-A (GB)
Title: An improved swath lifter and aerator
IPC: A01D78/06
Filed: 1947-07-15
Abstract: 630,649. Swath-turners. ANDREWS & BEAVEN, Ltd., and SMART, L. E. S. July 15, 1947, No. 18879. [Class 6(iii)] A swath-turner comprises a wheeled frame 1 carrying an endless conveyer composed of rigid tine carrying bars which comb and lift the crop and convey it rearwardly of the machine for redeposition on the ground. The conveyer is mounted on a sub-frame composed of side plates 17 carrying a cross-shaft 18 on which the forward sprockets 28 of the conveyer are mounted, the sub-frame being pivoted on a rear cross-shaft 14 which carries the rear sprockets 27 of the conveyer. Adjustment of the sub-frame relatively to the ground is effected by a lever 22. The conveyer is driven from a tractor power take-off through a longitudinal shaft 9 and a chain drive 13. The conveyer, Fig. 7, comprises chains 30 interconnected by overlapping bars 29 which carry further channel-section bars 31 on which the tines 32 are mounted. The lifted crop is passed by the conveyer on to series of parrallel bars 48 having upwardly-extending portions 48a which deflect the crop to one side of the line of travel, the deflection being assisted by adjustable boards 46, 47. In a modification, the bars 48 are bent to form a skeleton mould-board which turns over crop in addition to deflecting it laterally.
Patent GB-717585-A (GB)
Title: A cyclone dust separator, especially for internal-combustion engines
IPC: B01D50/00
Filed: 1951-08-10
Abstract: 717,585. Centrifugal separators. SCHWEIZERISCHE LOKOMOTIV-UND MASCHINEN. FABRIK. Aug. 10, 1951 [Sept. 12, 1950], No, 18932/51. Class 23 [Also in Group XXVII] A cyclone separator comprises a housing 11 having a tangential inlet 9 at one end, a dust outlet 14 at the other end of the housing, a helical ledge 13 extending along the length of the inner wall of the housing, and a hollow filter element 15 having one end closed by an air impervious plate 16 and the other end passing through the end wall of the housing adjacent the inlet to form an outlet for the cleaned air. The housing is of generally cylindrical shape and is integral with an. air inlet duct for an internal combustion engine. The filter element is held in position by a spring 29 pressing against a cover 21, and has its axis parallel to but radially spaced from the axis of the housing. A part 28 of the housing adjacent the inlet may be bent to adjust the area of the inlet.
Patent GB-596184-A (GB)
Title: Improvements in or relating to protective devices for goods displayed in shop windows or like situations
IPC: E06B9/01
Filed: 1945-07-24
Abstract: 596,184. Window guards. CALLANAN, F. S. July 24, 1945, No. 18941. [Class 20 (iii) ] A shutter or grille is slidable in vertical guides alongside a shop window or the like and means are provided to prevent unauthorised raising of the shutter, which is partially counterweighted and supported by one or more glass struts, and a switch of an electric alarm device is arranged so that it closes automatically when the shutter descends. As shown in Figs. 1 and 2, a shutter a slidable in guides b inside a shop window c is partially counter-balanced by weight d, and held in the open position by one or more glass struts g, preferably of tubular form, placed against the window. If the window is broken the glass strut collapses, releasing the shutter which automatically closes the switch n of an electric alarm system and is locked in the closed position by a device k from which a spring- pressed pawl j engages the lower cross member h of the shutter.
Patent GB-597183-A (GB)
Title: Improvements in or relating to electric amplifiers, and deafaids incorporating the same
IPC: H04R25/04
Filed: 1945-07-25
Abstract: 597,183. Sets for deaf persons. SHIPTON, E. July 25, 1945, No. 19010. [Class 40 (iv)] [Also in Group XL] An amplifier assembly, more particularly for deaf-aids, comprises a pair of terminal strips of insulating material held in spaced relationship by the associated electrical components. The conductor leads of the condensers 21 and resistances 23 (Figs. 2, 3) are passed through apertures 20 in the terminal boards 18, 19, which may be eyeletted, and the assembly completed by spots of solder 22. Flexible insulating material 24, 40 may be interposed between certain components and utilized to protect projecting leads. Components are interconnected by metallic strips 25 which are held in place by the attachment of battery leads 36 passed through the terminal board 18. The assembly is located in grooves 30 in the case 10 and supports the valves 29 by means of their connecting leads. A microphone 13 is supported by projections 31 formed in the case 10, and is held between the felt ring 15 and the flexible material 16. The microphone damping may be made adjustable, or an iris diaphragm interposed between it and the front of the case 10. A cover 11 is attached by means of screws entering the threaded sockets 12, and bears a spring clip 44 for attachment of the apparatus to the user's clothing. A deaf-aid assembly (Fig. 5, not shown) comprises the amplifier described (Figs. 2, 3), a telephone reproducer and a battery container provided with an " on-off " switch and a filament rheostat as a volume control.
Patent GB-812359-A (GB)
Title: Improvements in apparatus for feeding sheets or webs of paper or the like in paper converting machinery
Inventor: JONES KENNETH WARNER
IPC: B65H5/06
Filed: 1955-07-01
Abstract: 812,359. Feeding webs and sheets; number printing apparatus; ruling machines. WARNER-JONES & CO. Ltd., K. Sept. 27, 1956 [July 1, 1955], No. 19023/55. Classes 100(1) and 100(2) An apparatus for feeding sheets or webs of paper and like flexible material comprises a pair of co-operating feed rollers rotatable about substantially parallel axes, one roller being held frictionally between resiliently mounted friction surfaces so as to be capable of movement by the other roller, into a position eccentric with respect to its own axis of rotation. As shown, a shaft 1 carries rollers 2 and 3 which co-operate with rollers 5 and 6 respectively on a shaft 4. Each roller 5 or 6 comprises a member 7 secured to the shaft 4 and an annular disc 8 interposed between friction rings 9 and 10. The interior diameter of the disc 8 is larger than a supporting spigot 11 on the member. A plate 13 is urged by springs 15 to press the ring 10 towards a flange 12 on the member 7. The pressure exerted by the springs 15 can be adjusted by screws 14. In operation, the upper rollers 2, 3 push the discs 8 downwardly, thus ensuring that both pairs of co-operating rollers exert an equal tractive effort on the material being fed. One or both of the rollers may be formed as a segment to provide an intermittent feed. If desired, one of the upper rollers may carry a numbering wheel, while the flange 12 is extended to form a co-operating impression surface. This upper roller may carry a rotary printing cylinder, in addition or in lieu of the numbering wheel. Alternatively, the upper wheel may carry spaced apart ruling discs.
Patent GB-816443-A (GB)
Title: Improvements in and relating to calculating devices
IPC: G06G1/12
Filed: 1956-06-20
Abstract: 816,443. Calculating-apparatus. NICHOLAS, J. W. Sept. 20, 1957 [June 20, 1956], No. 19112/56. Class 106 (1). A slide rule comprises a base and two relatively movable members, all bearing logarithmic scales for making calculations concerning haematology. As shown, the base 1 is rectangular and is grooved to receive two slides 5 and 6 bearing scales of Red Cell Count (R.B.C.) and Packed Cell Volume (P.C.V.) respectively, These are set in accordance with observed values against an observed Haemoglobin content value (Hb) on a scale 7 or a scale 10 on the base, these being alternative per cent or gm./100 ml. scales. The required values-Mean Corpuscular Haemoglobin Concentration (M.C.H.C.), Mean Corpuscular Volume (M.C.V.), Mean Corpuscular Haemoglobin (M.C.H.) and Colour Index (C.I.)-may then be read, against index marks 17, 14 and 13 carried by the slides 5 and 6, on scales 11, 16, 9 and 8, the scale 16 being on the slide 6 and the other scales on the base. A cursor slide 20 bearing a line 21 serves also, when centrally positioned, as a cover for the scales. If other measures of the Haemoglobin Content are to he used, the cursor may carry a further index mark for co-operation with the Haemoglobin Content per cent scale 7. For use when the Haemoglobin Content is derived from a colorimeter reading, an additional slide 18 may be provided bearing a scale of colorimeter readings. This is initially set relative to the Haemoglobin Content scales as the result of a calibration of the instrument and its scale may then be used in setting the slide rule in place of the Haemoglobin Content scales. The slide 18 may carry alternative colorimeter scales on its reverse side.