baber/WOPTO huggingface dataset:
Patent GB-807842-A (GB)
Title: Gyromagnetic resonance apparatus
IPC: H03L7/26
Filed: 1955-03-29
Abstract: 807,842. Gyromagnetic resonance apparatus. VARIAN ASSOCIATES. March 29, 1955 [March 29, 1954], No. 35007/56. Divided out of 807,841. Drawings to Specification. Class 37. The entire subject-matter of the present case is contained in Specification 807,841 but the claims are directed to a bridge designed to avoid errors due to tilt or movement of the polarizing magnetic field. Specifications 753,495 and 807,843 also are referred to.
Patent GB-492737-A (GB)
Title: Improvements in and relating to cameras
IPC: G03B17/34
Filed: 1936-12-21
Abstract: 492,737. Photographic cameras. CASLER, H. Dec. 21, 1936, No. 35048. Void. Convention date, Dec. 21, 1935. [Class 98 (i)] A camera comprises a main body part consisting of the taking chamber and a storage chamber for packs, and a plate mounting head containing focusing mechanism and the pack shutter operating mechanism. The body part 2 contains the lens 9, a shutter unit 7, a diaphragm 11 and an insert 18, of which part forms a chamber 21 for storing photographic packs 6. A bail-like member 23 closes the chamber 21 which is recessed at 26, 27 to facilitate extraction of the packs. The head 3 fits by means of flanges 28, 29 onto the body 2 and is secured by a stout wire bail 31 by its engagement with pins 34 on the casing and brackets and a groove 36 on the head. Mounted within a protuberant portion 30 of the head 3 is a cam member 40 provided with cam slots 42 into which project the ends 70 of link members attached to the plate support 56. The member 40 rotates in a boss 44 and has mounted inside it a resilient plate 48, a cup 51 secured thereto by a bolt, and a spring 72 whereby the cam 40 and plate 56 are maintained in their adjusted position ; a centring collar 73 is mounted on the plate member 56 and causes the latter to move to and away from the head as the cam is rotated by its finger piece 46. The outer face of the head bears a scale indicating the focusing distance. The plate 56 has a flange 57 for the rear edge of the picture pack, and a pair of adjustable clip members 58. Each clip member has an inclined lateral tongue 61 which is received in a slot 62 in the plate 56. The side of the clip has an aperture which is to be gripped by the finger when manipulating the clip. As the clips are slid along the flanges of the plate 56, they grip the pack so that it can be focused and the shutter removed for exposure. The photographic pack is of the kind described in Specification 490,836 and the means for removing the shutter prior to the exposure is similar to that described in Specification 466,913. A rotary cup-shaped member 81 carries a flat circular disc 85 upon which rotates a planetary gear-wheel 87. The wheel 87 engages a series of pins 88 on the head 3, and one of its teeth has a pin 89 which engages a staple 90 on the shutter of the pack 6. As the wheel is rotated, the pin 89 moves longitudinally and withdraws the shutter from the front of the pack and allows the exposure to be made. The head 3 is prevented from being withdrawn from the body 2 when the shutter is withdrawn by an extension which lies in the path of the bail 31 and prevents its release until the shutter is pushed in. Lugs on the head 3 similarly prevent the member 23 from interfering with the movement of the pin 89. The camera is provided with a frame view-finder.
Patent GB-379590-A (GB)
Title: Improvements in or relating to the manufacture of chromium steel by the thomas process
IPC: C21C5/34
Filed: 1931-12-18
Abstract: In manufacturing chromium steel by the Thomas process the blowing is interrupted at a point short of normal dephosphorization while the steel still contains at least 0,80 per cent of phosphorus, whereupon chromium or a chromium alloy is added in the converter and the bath is further blown for a very short period to thoroughly mix the melt.
Patent GB-740877-A (GB)
Title: Motion-picture apparatus
IPC: G03B19/18
Filed: 1953-12-17
Abstract: 740,877. Kinematograph cameras. COUTANT, A. C., and MATHOT, J. Dec. 17, 1953 [Dec. 24, 1952], No. 35141/53. Class 97 (1). In a kinematograph camera, graduations 36 of frame frequencies or film speeds and an index 37 are positioned in the field of view of a magnifying lens 8 of the view-finder and the filmfeeding mechanism of the camera drives a direct current generator 20 which is electrically connected to a galvanometer 33 which controls the angular position of disc 34. Preferably the galvanometer is housed in a casing which is capable of pivoting about the axis of an extension tube and the electrical connection to the generator is made through slip-rings 31 and brushes 30. As shown, the generator 20 is of a permanent magnet type and is geared to the main shaft 17 of the camera and runners 28 make sliding contact with conductors 29. A reflex image is formed on a ground-glass surface of a plate 16 and the index 37 may consist of a line engraved on a field lens 9 provided, together with the magnifying lens 8, for viewing it.
Patent GB-467895-A (GB)
Title: Improvements in or relating to alloy steels
Filed: 1935-12-18
Abstract: An iron alloy for tools and other purposes contains 0,15-1,6 per cent of carbon, 3,25-6 per cent of chromium, 8-20 per cent of tungsten, 1-5,6 per cent of molybdenum and up to 3 per cent of silicon, with or without up to 6 per cent of vanadium and up to 16 per cent of cobalt, and with or without small amounts of the following elements as impurities: manganese, nickel, titanium, tantalum, uranium, copper, aluminium, sulphur, phosphorus, arsenic, and tin.  The molybdenum content is 12,5-28 per cent of the tungsten content.  Heat treatments for hardening, tempering, carburizing, and nitrogenizing may be applied, and the tempering and nitrogenizing operations may be carried out simultaneously.  Specification 411,321 is referred to.
Patent GB-191046-A (GB)
Title: Improvements in sensitive roll films and paper rolls for photography
IPC: G03C3/02
Filed: 1922-12-27
Abstract: 191,046. Gevaert Photo-Producten Naamlooze Vennootschap. Dec. 24, 1921, [Convention date]. Films and papers, receptacles for.-A roll of sensitive paper or film for use in daylight printing and developing apparatus comprises a sensitive strip 1 permanently secured, as by glue, to a strip of opaque paper 2 indented at 4 so that after rolling as shown in Fig. 3, caps 3 of opaque paper may be applied to the ends of the roll, and their turned-down edges enveloped by rolling up the remainder of the strip 2. The end of the strip is secured by a gummed label, and additional end caps may be fitted on the complete roll. The caps 3 may be strengthened by a central disc of cardboard of diameter approximating to that of the roll. The indentations 4 are sloped gradually on one side to cause gradual expansion of the turned-down edges of the caps 3 on unrolling.
Patent GB-383769-A (GB)
Title: Improvements in or relating to massaging and the like toilet apparatus
IPC: A61H23/02
Filed: 1931-12-21
Abstract: 383,769. Motor driving-arrangements. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. Dec. 21, 1931, No. 35259. Convention date, Dec. 27, 1930. [Class 35.] A mechanism for actuating a massage appliance comprises an electromotor, housed in a member 1, and driving, through a worm and wheel, a pitman 2 which engages a recess 10 in the rocking lever 7 on which the massage devices are carried.
Patent GB-522266-A (GB)
Title: Improved safety device for aeroplanes
IPC: B64C25/00
Filed: 1938-12-05
Abstract: 522,266. Aircraft emergency fittings. BOULTON PAUL AIRCRAFT, Ltd., and NORTH, J. D. Dec. 5, 1938, No. 35330. [Class 4] To facilitate the escape of the occupants from an aeroplane that has overturned on landing, contact members resiliently mounted on the upper surface of the body are so placed as to be deflected upon contact with the ground, their deflection causing jacking members to be extended from the upper surface of the aircraft to raise it clear of the ground. In the form shown the jacking member 8 normally rests against resilient stops 10 on the fuselage and itself forms the contact member which, upon impact, compresses the stops and causes a plunger 7 to shear a diaphragm in a chamber 11 and admit compressed gas from a reservoir 13 to a cylinder 6. The compressed gas acts on a piston on the plunger 7 and extends the member 8. Alternatively, the plunger may strike the firing pin of a slow burning cartridge. Where separate contact members are used they may act upon diaphragms in pipe lines leading to the jacking device or they may actuate electric switches in the firing circuit of an explosive cartridge in the cylinder 6 or a chest attached thereto.
Patent GB-885076-A (GB)
Title: Improvements in or relating to cartons
Inventor: MILLS AUBREY ROBERT
IPC: B65D5/20
Filed: 1959-10-19
Abstract: 885,076. Cartons. DIE CASTING MACHINE TOOLS, Ltd, and MILLS, A. R. May 24, 1960 [Oct. 19, 1959], No. 35363/59. Class 18. A tray-like carton having a base portion of double thickness and prismatically-shaped sides is made from the blank of Fig. 1 by folding along lines 13, 17, 16, so that the rectangular panel 15 lies on the similar but larger panel 10. The extension 24 is then glued to a side portion 21, so that when the carton is erected the portion 24 lies within the prism formed by the side portions 20, 21 and base 10. A similar prism is formed by the side portions 18, 19 standing on the base 10. Flaps 25, 26 and 27, 28 are then folded against the ends of the respective prisms before erecting the remaining sides of the box, which sides are made by folding extensions 30, 31 and 33, 34 of the base panel 10 to form prisms and tucking the end flaps 32, 35 between the panels 10, 15. The flaps 32, 35 are secured to the panels by stapling. All the external surfaces of the carton lie on one side of the blank and may have printing thereon. Inserts may be placed in the prisms from strengthening purposes and a suspension tag may be struck up from the portion 10. The carton may be: covered by transparent plastic material such as cellulose acetate.
Patent GB-522112-A (GB)
Title: Improvements in or relating to implements or appliances for gathering or collecting hay or the like
IPC: A01D76/00
Filed: 1938-12-05
Abstract: 522,112. Hay sweeps. HAYWARD, N. S. Dec. 5, 1938, No. 35384. [Class 6 (iii)] A hay sweep having side portions which fold up over the centre part is connected in front of a tractor so that it can swivel laterally. As shown the implement has a main frame 10 with axle 12 and wheels 13. Side frames 10a, to which some of the tines are fixed, are detachably secured in operative position but can be turned on cross-pins 18 and brought into a position above the main frame to decrease the width of the implement for transport. The side frames are fitted with lateral bars 24 to prevent the collected hay falling away at the sides. The sweep is connected to a bracket on the wheel axle of the tractor by 'a forked coupling bar 22 pivoted on a spindle 21 and having an eye 23.
Patent GB-902581-A (GB)
Title: Process for producing fibrous polycarbonate material
IPC: C08G64/40
Filed: 1959-10-19
Abstract: Polycarbonate filaments are made by meltspinning a linear fibre-forming polycarbonate synthesized chiefly from a 4,41-dihydroxydi(mononuclear aryl) alkane in which the aryl groups are attached to the same carbon atom of the alkane, the intrinsic viscosity of the polycarbonate in methylene chloride at 20 DEG C. being from 0,48-1,00, and subsequently drawing the spun filaments, preferably to a draw ratio of 1:2 to 1:8, at a temperature of from 60 DEG -160 DEG C.  The polycarbonate may be synthesized chiefly from 4,41-dihydroxy-diphenyl-2,2-propane, either by reacting phosgene with starting materials consisting chiefly of this substance in the presence of an acid-binding agent and a solvent, in which case the intrinsic viscosity of the polycarbonate is desirably 0,75-1,00, or by the ester-interchange reaction of similar starting materials with carbonic acid diesters, in which case the intrinsic viscosity of the polycarbonate is desirably 0,65-0,85.  The preferred polycarbonates are mixed or co-condensed polycarbonates synthesized from 4,41-dihydroxydiphenyl-2,2-propane and 1-10%, especially 2-10%, of other dihydroxy compounds selected from other 4,41-dihydroxy-di(mononuclear aryl)-alkanes in which the aryl groups are directly attached to the same carbon atom of the alkane, 4,41-dihydroxy-di(mononuclear aryl)sulphones, and 4,41-dihydroxy-di(mononuclear aryl)alkanes in which the aryl groups are directly attached to the same carbon atom of the alkane and which carry a carboxyl or sulphonic radical.  A long list of such starting materials is given.  The melt may contain, as a stabilizing agent, 0,01-2,0% of a triaryl phosphite, especially triphenyl phosphite, or of orthophosphorous acid. Melting may take place in an atmosphere of nitrogen or carbon dioxide and the melt may be spun into an atmosphere of air, nitrogen or carbon dioxide.  Conventional additives, e.g. delustrants, pigments, and other polymers which improve the dye affinity or moisture absorption of the fibres, may be added to the melt.  Filaments may be drawn in heated air or steam, and may be crimped and heat treated in conventional manner. Specification 902,580 is referred to.
Patent GB-367469-A (GB)
Title: Switching on electric signal transmission circuits
IPC: H04B3/20
Filed: 1930-11-25
Abstract: 367,469. Two - way transmission. STANDARD TELEPHONES & CABLES, Ltd. and THOMAS, P. R., Columbia House, Aldwych, London. Nov. 25, 1930, No. 35450. [Class 40 (iv).] A two-wire circuit with a normal bias for transmission in one direction is prepared for transmission i n the reverse direction by a switching current which is initiated by the signals and is transmitted over the two wires and earth-return. The earth-return may be replaced by the cable sheath or armouring. The circuit shown has a bias in the direction A-B. When speech takes place at B part of the speech currents pass to L4 and energize S2. A pulse passes to earth over the two wires of the circuit in parallel to energize S1 which reverses the transmission direction at A, the direction of transmission at B having been reversed by a portion of the signal current. The switching currents are fed to the cable at the mid points of transformers T1, T2 through potentiometers R1 R2 which enable the approximate electrical centre of the circuit to be obtained. The potentiometers R1, R2 may be replaced by networks which simulate, or are multiples of, the admittances to earth of the cable conductors, and false operation of the relay S1 may be prevented by the provision of a differential device the two sides of which are controlled by the main and the earth-return circuits. Specification 348,574 is referred to.
Patent GB-356576-A (GB)
Title: Improvements relating to hinged table and like flaps
IPC: A47B1/04
Filed: 1930-11-25
Abstract: 356,576. Tables. DOUGHTY, H. H., Blenheim Works, Eagle Wharf Road, London. Nov. 25,1930, No. 35463. [Class 52 (iii).] A multipledeck table or dinner or like wagon has a flap 13 supported by a member 21 pivoted between its ends so that when turned to the position shown it supports the flap 13 in the manner of a cantilever. It is proportioned as shown, and a washer 25 is fitted to facilitate its movements. Specification 22204/12, [Class 52 (iii), Tables &c.], is referred to.
Patent GB-301802-A (GB)
IPC: B29C33/60
Filed: 1928-12-01
Abstract: 301,802. Voshage, A. Dec. 5, 1927, [Convention date]. Vulcanizing moulds are treated, e.g. by spraying, with a solution of a sugar or a mixture of sugars and which may contain dextrin, to clean them and prevent the formation of crust or scale.
Patent GB-890307-A (GB)
Title: Improvements in or relating to the preparation of alcohols
Filed: 1959-10-20
Abstract: A mixture of an aluminium compound having the structure <FORM:0890307/IV (b)/1> in which R, R1 and R2 may be the same or different and represent alkyl or cycloalkyl radicals which may be substituted by alkyl, cycloalkyl or phenyl radicals, and an a -olefine which may be substituted by alkyl, cycloalkyl or phenyl radicals is reacted with oxygen to give an aluminium alcoholate which may then be hydrolysed to give primary alcohols.  At least one of the radicals R, R1 and R2 has a different carbon content from that of the olefine.  The oxidation reaction is preferably carried out at 0 DEG C.-120 DEG C.  The hydrolysis may be carried out with any suitable hydrolysing agent, e.g. a strong mineral acid, a strong base or steam.  Preferably the a -olefine contains 6-22 carbon atoms. Suitable a -olefines are, for example, 1-hexene, 1-hexadecene, 4-phenyl-1-butene, 3-cyclohexyl-1-propene, 2-ethyl-1-butene and 4-(p-ethylphenyl)-1-butene.  The starting aluminium compounds may be obtained by the "growth" process. It is preferred to use a molar ratio of olefine to aluminium compound of at least 3 to 1.  In an example trioctyl aluminium is treated with dodecene-1 and the product hydrolysed with hydrochloric acid to give a mixture of 1-dodecanol, 1-octanol, n-octane and 1-octene.  Similar results are obtained by using tri (4 - phenylbutyl) - aluminium, tricyclohexyl-aluminium, tri(propylcyclohexyl)-aluminium and tripentylaluminium with 1-hexene, 1-hexadecene, 4-phenyl-1-butene, 2-ethyl-1-butene, a -methylstyrene, 2-methyl butene, vinyltoluene, 2-ethyl-1 -hexene, 2-phenyl-1-butene and vinyl cyclohexene.  Specification 873,119 is referred to.
Patent GB-351891-A (GB)
Title: Improvements in and relating to systems for the transmission of angular motion
IPC: G08C19/48
Filed: 1930-11-26
Abstract: 351,891. Electric signalling systems. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Woodward, J. S. ; 211, Seward Place, Schenectady, New York, U.S.A.) Nov. 26, 1930, No. 35611. Convention date, Nov. 27, 1929. [Class 40 (i).] In an alternating current self-synchronous system for transmission of angular motion, the inductive reactive component of the current drawn by inductive devices connected in the system is compensated by phase regulating devices comprising capacities connected in the circuit, so that the power factor is improved. In the arrangement shown, a transmitter 10 and receiver 13 are coupled by inductive devices 16, 17 by which the relative positions of the transmitter and receiver are adjusted, the compensating capacities 50a, 50b, 50c being connected in the coupling, but in another arrangement, the transmitter and receiver are directly connected without an intervening inductive coupling and the capacities are inserted across the connections. The transmitter and receiver are similar and comprise polyphase stators (or rotors) 11, 14 and a single phase rotor (or stator) 12, 15. The inductive coupling comprises polycircuit rotors 20, 31, the windings of which are connected to the polyphase windings of the transmitter and receiver respectively, and polycircuit stators 18, 30 with interconnected windings to which the capacities are connected. The rotors 20, 31 are carried by spindles rotatable through worm gearing by handcranks 22, 32. The single phase windings of the transmitter and receiver are connected to the supply 46. Assuming that the windings of the devices are in corresponding position as shown, the system is in a state of balance, but if the rotor 12 of the transmitter is turned the balance is upset and the rotor 15 of the receiver moves through the same angle to restore the balance. To adjust the relative positions of the transmitter or receiver, one or each of the rotors 20, 31 of the inductive coupling is turned, the balance is upset and the transmitting and receiving rotors move to restore it, the angular displacement of these rotors being shown by indicators 26, 36 associated with the rotors of the coupling device.
Patent GB-1044958-A (GB)
Title: Improvements in and relating to magnetic recording apparatus
IPC: H03G7/00
Filed: 1963-09-11
Abstract: 1,044,958. Automatic gain control. M. GRUNDIG. Sept. 11, 1963 [Sept. 14, 1962], No. 35817/63. Heading H3Q. [Also in Division G4] A magnetic recording amplifier is provided with delayed automatic gain control of quickacting type but with a slow recovery time, the latter being switchable to alternative values. The amplifier comprises preliminary gaincontrolled stages 1, 2 and an output stage 3 in which frequency-correction is obtained by means of a feedback circuit 4. The output from amplifier 3 is applied via resistor 19 to recording head 5, and directly to A.G.C. amplifier 9 which feeds a cathode follower 12. The output from the latter is fed to A.G.C. diode 14, the rectified and smoothed control voltage appearing across resistor 18 and capacitor 18 being applied to the preliminary amplifier stages 1, 2 to control the gain. A delay is obtained by returning the cathode of the valve 9 to a source of positive potential, this potential being so chosen and the value of resistor 19 is selected, that valve 9 is cut off as long as the current through recording head 5 is less than the value required for full modulation. The period for which the gain is reduced may be reduced by switching resistor 22 in parallel with resistor 18, while the time during which gain reduction takes effect may be increased by switching resistor 20 in series with the diode; these switches may be ganged with other controls (see Division G5).
Patent GB-368324-A (GB)
Title: Improvements in prepayment mechanism for gas and like meters
IPC: G07F15/08
Filed: 1930-11-28
Abstract: 368,324. Prepayment mechanism for meters. METERS, Ltd., Blackfriars House, Parsonage, Manchester, GLOVER, W. T., 37, Grasmere Road, Clarksfield, and MAYLOR, J. A., 59, Brompton Street, both in Oldham. Nov. 28, 1930, No. 35829. [Class 27.] In prepayment mechanism for gas and like meters having a two-speed gear for operating the gas or like valve-controlling means from the metering mechanism according as the coinholder is set to receive pennies or shillings, the slotted sleeve a, Fig. 2, for rotating in known manner a valve-operating collar b, Fig. 1, on a screwed shaft c, is driven by a worm e on a spindle g engaging a worm wheel f on the sleeve. The metering mechanism, through a universal joint v, drives a shaft u wbich rotates the spindle g either through gears t, s and bevel wheels q, h, when pennies are to be used, or through a worm w and worm wheel i, when the coin-holder is adjusted to take shillings. The bevel wheel h and wheel i are slidably feathered as a unit on the spindle g and are moved by a bell-crank lever j, k, which is controlled by a spring o normally to keep the bevel wheels h, q in engagement, the arm k bearing against a collar m on the end of a plunger n, which projects coaxially into the coin-operated quantity wheel d. When the plunger n is in this position, the coin-holder is adjusted to take pennies and a part x thereon moves in a groove 3 in the quantity wheel. When the coin-holder is adjusted for shillings and placed in position, the part x will engage the plunger n and push it outwardly so that the bell-crank lever j, k is moved to disengage the wheels h, q and put the worm wheel i into engagement with the worm w. Specification 317,182, [Class 27, Coin-freed apparatus &c.], is referred to.
Patent GB-1393094-A (GB)
Title: Scaffold tube coupler
IPC: E04G7/14
Filed: 1971-07-30
Abstract: 1393094 Clamps BURTON DELINGPOLE & CO LTD 13 July 1972 [30 July 1971] 35849/71 Heading E2B The Tee-head 17 of a scaffold-clamp bolt 18 engages in a recess 16 having inclined sides 16a of such shape that if the bolt is incorrectly placed as shown in Fig 3, it can easily be shaken so as to fall into its correct position in the recess as shown in Fig 1.