baber/WOPTO huggingface dataset:
Patent GB-614700-A (GB)
Title: Improvements in and relating to the preparation of luminescent material
IPC: C09K11/08
Filed: 1946-07-25
Abstract: 614,700. Luminescent materials. BRITISH THOMSON-HOUSTON CO., Ltd. July 25, 1946, No. 22190. Convention date, May 5, 1945. [Class 39 (i)] The halide and phosphate components of a fluorescent halophosphate are precipitated together from a solution of compounds of the matrix and activating metals, segregating the intermixture of precipitates and adding thereto an additional compound of the matrix to convert all phosphate to orthophosphate before firing in an inert atmosphere. At least half of the bivalent metal atoms in the halophosphate which probably has the formula 3M3 (Po4)2IM<1>L2 (where M and M<1> are bivalent), are alkaline earth metals, e.g. calcium or strontium, and the halogen atoms are preferably fluorine, chlorine or bromine, or a mixture of two or more of these halogens. The activator may be antimony replaced in part or wholly by bismuth, tin or lead, supplemented by manganese. Proportions of antimony between ¢-15 per cent do not greatly change the luminescent properties but 2-6 per cent is preferred, giving pale-blue to green-blue luminescence under 2537‹ A excitation. When bismuth replaces antimony greater amounts are preferred, e.g. up to 7¢ per cent. Suitable proportions for tin and lead are 4 and 15 per cent respectively, with 2¢-10 per cent manganese as supplementary activator with bismuth; manganese gives little change of colour but an increase in efficiency. In an example of the preparation of the material, a hot solution of ammonium fluoride is added to a solution of calcium nitrate, and then an aqueous suspension of antimony trioxide and aqueous manganese nitrate solution. A boiling hot solution of diammonium phosphate is added, coprecipitating phosphates of manganese and calcium and bringing down the colloidal CaF2 and the dispersed Sb2O3. Calcium carbonate is added to the dried mixture of precipitates which is heated to 1050‹-1100‹ C. for half-an-hour in a nitrogen atmosphere.
Patent GB-834063-A (GB)
Title: Improvements in and relating to orthopaedic bandages and the manufacture thereof
Inventor: LLOYD RONALD
IPC: A61F13/04
Filed: 1957-07-13
Abstract: Surgical casts are made by coating a fabric with a vinyl alkyl ether/maleic anhydride copolymer which is either heated in an aqueous environment or in an environment of a lower aliphatic alcohol.  The resultant polymeric substance is constituted by the recurring structural units.  <FORM:0834063/VI/1> where R represents a lower alkyl group, X represents a hydrogen atom, an alkali metal atom or an ammonium radical, Y represents a hydrogen atom, an alkali metal atom, an ammonium radical or a lower alkyl group.  The coating hardens in about eight minutes and may include a filler such as plaster of Paris and/or a compound, e.g. of calcium, which, in the presence of water forms a water-insoluble compound.
Patent GB-218880-A (GB)
Title: Means for converting continuous into intermittent rotary motion
IPC: F16H27/10
Filed: 1923-09-04
Abstract: 218,880. Burn, J. F., and Lancaster, J. S. Sept. 4, 1923. No Patent granted (Sealing fee not paid). Gearing for stopping and starting machinery.- Driving and driven shafts 3, 4 are connected through a clutch 6 which is disconnected intermittently by a cam 14 geared to the driving-shaft 3. A spring 33 tending to hold the clutch in engagement is overpowered by a weighted lever 19 acting oppositely unless the swell y of the cam 14 acting through a lever 16 and rod 18 renders the weighted lever inoperative. The weighted lever 19 besides disengaging the clutch 6 applies a brake 37 to the driven clutch member 7, and the suddenness of stoppage of the driven machinery can be regulated by adjusting a spring 39. In its application to the tar dipping plant for road stone described in Specification 216,805, [Class 107, Roads &c.], an additional cam 45 geared to the driven shaft 4 is provided, which times the release of the weighted lever to the exact moment when a conveyer bucket has reached a particular spot.
Patent GB-193435-A (GB)
Title: Improvements in the manufacture of welts for boots and shoes
IPC: A43B15/00
Filed: 1921-08-23
Abstract: 193,435. Young, E. A. Aug. 23, 1921. Connecting uppers to insoles and soles.-A method of manufacturing welts for boots and shoes from a long strip of material consists in cutting the material at intarvals on median longitudinal planes so as to produce a number of welts with reduced ends. The combined length of the welts when placed end to end is greater than the original length of strip, thus economising material. A strip a, Fig. 1, shown in edge view, is cut along median planes b, parallel to the face of the strip, the cuts c, c, starting in one face and merging dnto the opposite face. Similar cuts might be made parallel with, and merging into, opposite edges of the strip, as in Fig. 2, or the cuts might be made, as in Fig. 4, at an angle. The welt strip may be triangular in cross section, or rectangular, and may be provided with a stitching groove.
Patent GB-776505-A (GB)
Title: Improvements in and relating to milking machines
IPC: A01J7/02
Filed: 1955-08-04
Abstract: 776,505. Cow-milkers. MILLAR, S. Aug. 4, 1955, No. 22415/55. Class 84. A milking machine operating without inflations has all the milk contacting parts made from stainless metal, and readily detached from each other for easy cleaning. The teat-cup cluster 11 is suspended, Fig. 1, from a fixed frame DP via a frame 2 slidable on runners on structure 1, in the directions shown by the arrow, and a further frame 3 slidable horizontally in a direction normal to that shown by the arrow. The cluster 11 is carried by members 4h which are reciprocated vertically by the links 4a coupled to a lever system 2g, 2i pivoted at 2f and actuated by a link 10 oscillated by the crank arm 9 and rotary shaft 8. This vertical action controls the vacuum, causing the interior of the teat cups to receive a pulsating vacuum which also operates the releaser (see later). The movement of the teat cups themselves helps to strip the cow. The teat-cups (see Fig. 4) 7 are connected to the pulsator 6 via metal tubes 7i, 7h articulated together. By placing the teat cup horizontally the vacuum line is blocked, thus permitting one or more of the teat cups to be placed out of use. Hooks 13k on the pivoted arms 13 support the teat cups, and locking devices 13i secure the teat cups at any desired height during milking. The pulsator 6 and milk releaser 5 are actuated by the vertical reciprocation of the teat cup assembly (see Fig. 17). An arm 6q is secured to a stationary part of the suspension system and holds the pulsator slide 6n whilst the pulsator body 6b reciprocates. With the body in its lower position, channel 60 joins the vacuum pipe 6j with part 6a thus putting vacuum on to the milk releaser 5. Milk flows in from the teat cups through passages 6f and 6g and through ports 6p and 6c to the releaser. With the body in its upper position, the releaser is supplied by air through a slot 6m, channel 6o and port 6a, and the teat cups are disconnected. If the milk is not to be released at the milk bail, the valve 12a is placed in the position shown in dotted lines and the milk flows in from the teat cups through passages 6f and 6g, through channels 6c and 60, and so into the vacuum line 6j.
Patent GB-493390-A (GB)
Title: Improvements in and relating to combustion apparatus
IPC: F23N3/04
Filed: 1937-08-16
Abstract: 493,390. Regulating air supply to furnaces. RECOMATIC SOC. ANON. Aug. 16, 1937, No. 22450. Convention date, Feb. 27. [A Specification was laid open to inspection under Sect. 91 of the Acts, Feb. 18, 1938.] [Class 51 (i)] In a furnace having water - heating elements 13 arranged in the upper part thereof, the air supply to the ashpit and to the combustion chamber is controlled by two thermostats, one of which 21 is connected to the water-heating elements 13 and the other 26 is arranged within the chimney. The thermostat 21 is connected by a lever 20 and chains 19, 25 to dampers 18, 24 controlling admission of air to a gilled air heating pipe 14 arranged above the fuel bed 12 and delivering at 22 to the ashpit 42 and also to a cold air inlet 23 connected to the ashpit. A branch pipe 16 provided with perforations 43 leads from the pipe 14 and delivers air to the combustion chamber. The thermostat 26 controls an air admission damper 27 in the chimney. The Specification as open to inspection under Sect. 91 also describes a modification in which perforated U-shape air supply pipes are arranged on each side of the combustion chamber and a further modification wherein air heating pipes are arranged within the combustion chamber and around the chimney for supplying heated air to the ashpit. Thermostatic means are provided for controlling the air supply. This subject-matter does not appear in the Specification as accepted.
Patent GB-966324-A (GB)
Title: Improvements in or relating to arrangements for limiting the current supplied by a voltage source to a load and the voltage set up across the load
IPC: H02J7/16
Filed: 1961-06-21
Abstract: 966,324. Automatic current and voltage control. PHILIPS ELECTRICAL INDUSTRIES Ltd. June 21,1961 [June 24, 1960], No.22451/61. Heading G3R. A regulator located between a supply source, e.g. a vehicle generator, and a load such as a battery comprises a first transistor having its baseemitter circuit connected to a voltage proportional to the load current and a second transistor having its base-emitter circuit connected both to the series combination of a voltage proportional to the voltage across the load and an opposed reference voltage and to the current-dependent voltage for the first transistor which is applied in the same direction as the reference voltage so that current limitation by the first transistor is rapidly replaced by voltage limitation by the second transistor should the voltage exceed a predetermined value. As shown, the charging current from a generator 1 to a battery 2 is maintained constant by a first transistor 5 which controls, over an amplifying transistor 17, a switching transistor 18 in the generator field winding 19, the base of transistor 5 being controlled, through a voltage divider 6, 7, by the voltage drop across a variable resistor 4 in the load circuit. When the load current exceeds a particular value, e.g. 13 amps., transistor 5 conducts to cut off transistors 17, 18. The base emitter circuit of a second transistor 8 is connected to the series combination of a voltage derived from a voltage divider 10, 12, 11 across the load terminals and an opposed reference voltage from a Zener diode 9, and also, over a resistor 13, to the voltage across load resistor 4. Transistor 8 becomes conductive to cut off transistors 17, 18 when the load voltage reaches a predetermined maximum value; the voltage drop across resistor 4 counteracts the opening of transistor 8 so that the transition from current control by transistor 5 to voltage control by transistor 8 is effected abruptly. Feedback capacitors 21, 22 are connected between the junction of transistors 17, 18 and the bases of transistors 5 and 8. Resistor 7 is temperaturedependent to compensate transistor 5 for temperature variations. Specifications 787, 610 and 966, 323 are referred to.
Patent GB-1089796-A (GB)
Title: Improvements in or relating to electrical actuators
Inventor: BANCROFT DONALD GEORGE
IPC: H02P23/00
Filed: 1963-06-05
Abstract: 1,089,796. Control of A.C. motors. ENGLISH ELECTRIC CO. Ltd. Sept. 4, 1964 [June 5, 1963], No. 22458/63. Heading H2J. A valve 3 is opened by actuating push-button 25 to energize relay 9 which closes contacts 9A in series with motor 1, so driving the valve when the lost-motion in device 5 is taken up. The relay 9 has self-holding contacts 9C. Normally the motor will continue to operate until either stop push-button 15 is opened or limit switch 32 is actuated. If the motor torque exceeds a predetermined value, however, switch 17 closes to energize relay 19 which opens contacts 19A to stop the motor. The valve is closed when relay 11 is energized by operation of push-button 27, so closing reverse contacts 11A. The relay 11 has self-holding contacts 11C. Normally, the motor will continue to run until either the switch 15 is opened or limit switch 36 is actuated. Excessive motor torque closes contacts 21 to energize relay 23 and open contacts 23A. If, during the opening operation of the valve, the lost-motion is taken up and the motor stops due to resistance imposed by jamming, the motor is disconnected by closure of switch 17. To free the valve, push-buttons'25, 29 are operated simultaneously, relay 11 being energized to drive the valve in the closing direction, taking up the lost motion in device 5. As the motor starts, switch 17 opens to deenergize relay 19. After a predetermined time delay, contacts 19A close and contacts 19B open to de-energize relay 11. The time delay is such that the motor stops before all the lost-motion is taken up, thereby preventing any closing force being applied to the valve. Closure of contacts 19A drives the valve in the opening direction to apply an unjamming force. This cycle is repeated until the valve is freed. Similar operation is obtained when the valve is jammed in the fully-opened position and push-button 27 is actuated to close the valve.
Patent GB-708662-A (GB)
Title: A suspension device for the display of goods in show-windows
IPC: A47F5/08
Filed: 1951-09-26
Abstract: 708,662. Displaying articles. FIECHTER, E. Sept. 26, 1951 [Sept. 28, 1950], No. 22473/51. Class 3(2) [Also in Groups XIV and XXV] Hooks for use in displaying articles in shop windows &c. are used in connection with a perforated sheet that forms the top of the' show &c. case. The holes 2 are preferably equidistant in rows at right angles and the hooks 6 have shanks 4 that pass through the holes and are bent at right angles either in the plane of the hook or perpendicular thereto. The end 5 may be long enough for a very short turned down end to engage in an adjacent hole. There is sufficient clearance between the holes and shank to enable the hooks to be inserted from below. The shanks may terminate in a screwthread instead of a hook and in this case the holes 2 and the shanks are preferably of square or other noncircular shape to prevent relative rotation.
Patent GB-772456-A (GB)
Title: Improvements in or relating to lubricant sealing devices
Inventor: DUCKETT WILLIAM ARTHUR
IPC: F16F9/36
Filed: 1954-08-03
Abstract: 772,456. Stuffing-box substitutes. WOODHEAD-MONROE, Ltd. July 22, 1955 [Aug. 3, 1954], No. 22521/54. Class 122 (5). A sealing ring 13 for a shaft or for a reciprocating rod such as the piston-rod 11 of a shock-absorber has a series of wiping lips or teeth 14 and a lubricant reservoir comprising a bearing ring 16 of lubricant-impregnated porous material, is provided in a recess 15 in one end of the ring to ensure that the lips 14, particularly the outer lips, do not become dry.
Patent GB-1214775-A (GB)
Title: Improvements in or relating to magnetic tape recorders
Inventor: HESSLAND GERD
IPC: G11B15/10
Filed: 1969-05-02
Abstract: 1,214,775. Tape recorder controls. GRUNDIG E.M.V. ELEKTRO-MECHANISCHE VERSUCHSANSTALT. 2 May, 1969 [2 May, 1968], No. 22604/69. Heading G5R. At least four modes of operation, namely normal running, fast forward, fast rewind and stop, are initiated mechanically by means of a single control knob 1, by the rotation of which a support member 8 which carries the magnetic heads 9 and a pinch roller 10 can be moved into and out of a normal running position (Fig. 2) and by the displacement of which from a stop position O, H to a fast rewind position O<SP>1</SP>, SR or a fast forward position O<SP>11</SP>, SV a required driving condition can be established, e.g. by means of idler wheels 42, 43 linked (Fig. 4) to the control knob 1. As shown, a lever 3 fixed to the control knob 1 carries at its free end a pin 4 which engages a slot 20 in the slidable support member 8. During clockwise rotation from the stop position O, H to the normal running position (O N, Fig. 2) an intermediate position is reached in which the amplifier and drive motor are energized but the pinch roller 10 is withdrawn from the tape. On anti-clockwise rotation of the knob 1 from the stop position, a finger 8<SP>1</SP> on the support 8 engages a bell-crank lever 47, 48, 48<SP>1</SP> to eject a cassette (23, Fig. 3).
Patent GB-1040966-A (GB)
Title: Cine film cassette
IPC: G03B17/26
Filed: 1963-06-07
Abstract: 1,040,966. Cine cameras and cassettes. EASTMAN KODAK CO. June 7,1963 [June 8,1962], No. 22697/63. Heading G2E. A film cassette for use with an electrically driven camera comprises electrically conducting members which, when the cassette is inserted in the camera, form part of a series circuit to the camera drive motor, the members being connected by a switch which opens and stops said motor when a predetermined amount of film has been wound from the supply spool to the take-up spindle 43 within the cassette. The cassette has a body 21 and cover 23 hinged at 25, spindle 43 having a saw-tooth clutch face at one end to engage the camera driving spindle through an aperture in casing 21. In use, the cassette is opened, a spool 91 of film is placed on spindle 37, and the leader is led through slot 39, across pressure pad 40, through slot 41, and into film-trapping slot 45 on spindle 43. Pivoted lever arm 53, is urged clockwise by spring 59 in contact with brass-post 63, so that sensing toe 95 touches the supply film roll. Cut-off spring 65 is attached to arm 53 through the brass pivot post 55 and normally contacts spring 59 thereby completing a circuit from post 63 to pivot 55 so that, when the cassette is inserted into the camera, posts 55, 63 extending through casing 21 touch contacts 81, 83 to close the circuit of motor 77 which may then be controlled by switch 75. The shortest radial distance from spindle 37 to toe 95 is adjusted to be slightly greater than that from spring 65 to take-up spindle 43 so that before the trailer has run off spool 91, spring 65 will be urged counterclockwise by the take-up film roll and the above circuit will be broken to stop the motor. The sensing position of toe 95 is clamped when the cassette is closed since pressure pad 89 then bears against extension 101 of arm 53 projecting up through slot 99 in switch cores 97. For rewinding, or with 8mm film the second exposure, the cassette is removed, turned over and re-inserted in the camera so that clutch face 49 of supply spindle 37 engages the drive while conducting rivets 85, 87 short-circuited by bar 89 contact prints 81, 83 in the camera and switch 75 may again operate. During re-wind, the switch mechanism is dis-engaged as extension 109 of arm 53 is contacted by stud 112 in the camera when the cassette is in the second position.
Patent GB-709136-A (GB)
Title: Improvements in or relating to portable or bell-type furnaces
IPC: C21D9/663
Filed: 1951-09-28
Abstract: 709,136. Bell-type furnaces. THOMAS & BALDWINS, Ltd., R., and DAVIES, C. G. July 23, 1952 [Sept. 28, 1951], No. 22740/51. Class 51 (2) In a heat treatment furnace of the bell type, the refractory base 10 is formed with a plurality of heating flues 11 and a sealing trough 13 containing sand or Wood's metal, and a work supporting hearth 16 forms the roof of the flues 11 and has a depending flange 17 entering the sealing trough. The hearth 16 is a massive metal plate which may be provided with strengthening fins, and the trough 13 may be lined with a metal channel 15.
Patent GB-1443828-A (GB)
Title: Catheters
IPC: A61F2/958
Filed: 1973-05-14
Abstract: 1443828 Catheters R M GREENHALGH 14 May 1973 22798/73 Heading A5R A catheter for the continuous irrigation of a body cavity comprises a drainage tube 1 having an auxiliary bore 2 extending along and within the thickness of its wall and terminating at the tip 7 of the drainage tube 1, an irrigation tube 11 extending from the auxiliary bore 2 beyond the tip 7 and having a number of radial discharge outlets 13 along' its length. A second auxiliary bore 3 within the thickness of the drainage tube wall terminates in the outer surface of the wall at orifices 14 beneath a sheath 15 of latex or other expansible material. The end of the catheter outside the body is of tridentate form, the three branches 4, 5 and 6 comprising respectively the ends of the drainage tube 1 and the bores 2 and 3. Branch 4 is connectable to a receiver for urine and spent irrigation fluid, branch 5 is connectable to a source of irrigation liquid, and branch 6 is connectable to a source of pressurised fluid. The tip 7 has an axial orifice 8 and at least one radial orifice 9. The material of the catheter may be flexible plastics, e.g. PVC. In use, the catheter is inserted into the bladder via the urethra, fluid is passed into bore 3 to inflate the sheath 15 to prevent accidental removal of the catheter. Irrigation liquid is passed, through the bore 2 and flows around the bladder, and then flows from the bladder through the drainage tube 1 and the outlet 4. The tip 7 of the drainage tube has a radial orifice by which it may be sutured in position.
Patent GB-516712-A (GB)
Title: Improvements in felt conditioners for paper-making machines
IPC: D21F1/32
Filed: 1938-08-02
Abstract: 516,712. Conditioning felts. of paper-making machines. VICKERY, F. W. Aug. 2, 1938, No. 22830. [Class 15 (i)] [Also in Group VIII] A felt conditioner, reciprocating across the felts and adapted to deliver liquid upon a small portion of the width of the felt and remove it by suction, is provided with endless bands between ' the felt and the suction box the principal suction space in which has its ends formed by rollers, friction being exerted by an adjustable member in contact with the felt along a transverse line. The suction, box 6 is mounted on a transverse guide 1, the endless bands 24 passing over wheels 25, 27. The liquid is supplied by a transverse jet 12 to one end of the box which is furnished with two or more rollers 8 in contact with the felt and furnished with sealing-devices 16, 17 whereby, the ends of the rollers being provided with seals, the space between them forms one or more suction spaces. Friction is applied to the felt by rods 22 the ends of which are mounted in eccentrics, and one or more supporting rollers 9 for the felt may be provided. The sealing devices comprise a blade 16 pivoted on a shaft carrying a blade 17; both members are provided with setting-devices outside the box. Spring-influenced members may be provided which press against the blades and clean them as the apparatus is reciprocated ; the seal may also be effected by rubber blades. Specification 478,713 is referred to.
Patent GB-698919-A (GB)
Title: Improvements in or relating to change speed mechanisms for talking machines
Inventor: METCALFE CLIFFORD
IPC: G11B19/265
Filed: 1949-02-26
Abstract: 698,919. Driving sound reproducing machines. ELECTRIC & MUSICAL INDUSTRIES, Ltd Feb. 17, 1950 [Feb. 26, 1949], No. 22886/51. Divided out of 698,865. Class 40 (ii). [Also in Group XXIV] The description is substantially the same as in Specification 698,865, but the claims are directed towards the change-speed gear. The change-speed gear comprises driving friction wheels 7, 8 on a motor shaft, engaged by an idler 9 also engaging the inner rim of a gramophone turntable 6. The idler 9, on a shaft 25, is supported by a carriage 21 moved lengthwise in the direction of the arrow 24 by the longitudinal movement of a bar 13 having a cam surface 20, between recesses 18, 19, engaging a roller 22 on the carriage. The lengthwise movement of the carriage 21 is accompanied by vertical movement of the idler 9 as a cam 26 on the bar 13 slides relatively to the shaft 25. The bar 13 is actuated from a Y-lever 12 which is rotated by placing a pick-up 1 in, or removing it from, a holder 11, the carriage 21 normally being held engaged with either of the recesses 18, 19, by a spring 23. According to the Provisional Specification, the carriage is pivotally mounted.