baber/WOPTO huggingface dataset:
Patent GB-541706-A (GB)
Title: Improvements relating to electric lighting fittings
IPC: F21V17/00
Filed: 1940-09-23
Abstract: 541,706. Electric light fittings. BRITISH THOMSON-HOUSTON CO., Ltd., and HUBBLE, L. Sept. 23, 1940, No. 14456. [Class 75 (ii)] An open-ended tubular sleeve 1 of indiarubber or like flexible material and fitted with a diffusing screen 6 of glass or other translucent material is slipped over the rim of the reflector 4 so that the bead on the reflector rim engages a groove 3 in a thickened portion of the sleeve. The top of the sleeve may be formed with a groove 10 to receive a securing wire or cord. The screen 6 may be mounted in an annular groove in the sleeve 1 or may be secured against an internal flange 5 by a removable spring 7 formed with kinks 9 and held in a groove 8 in the sleeve. Tabs may be provided on the sleeve to facilitate the application of the sleeve to the reflector.
Patent GB-781954-A (GB)
Title: Improvements relating to axle arrangements in motor vehicles
IPC: F16C29/06
Filed: 1955-05-19
Abstract: 781,954. Motor vehicle driving gear. DAIMLER-BENZ AKT.-GES. May 19, 1955 [May 19, 1954], No. 14493/55. Class 79(2) [Also in Group XXIV] Relatively axially movable parts 10, 14, of an articulated shaft, driven through a universal joint 42 by the differential gear 39 of a motor vehicle axle, the half-casings 31, 32 of which swing about a pivot-axis 34 attached to the superstructure through a transverse bar 35, are coupled by balls or rollers 19 between interfitting splines in the outer member 10, attached to a yoke of the universal joint 42, and an inner sleeve 13 detachably splined to the shaft 14.
Patent GB-731365-A (GB)
Title: Improvements in and relating to electroluminescent lamps
IPC: H05B33/14
Filed: 1952-06-09
Abstract: 731,365. Electroluminescence. SYLVANIA ELECTRIC PRODUCTS, Inc. June 9, 1952 [June 8, 1951], No. 14499/52. Class 39 (1). An electroluminescent lamp comprises a pair of spaced electrodes enclosing zinc sulphide activated by manganese and copper, e.g. for each mol. of zinc sulphide 0.0001-0.03 gram atoms of manganese and 0.0001-0.005 gram atoms of copper. Lead in a molecular content of 4 x 10<SP>-7</SP>-4 X 10<SP>-5</SP> may be added. An intimate mixture of zinc sulphide (which contains 3.15 per cent zinc chloride), lead carbonate, cupric oxide and manganese carbonate, with or without a little zinc oxide, is fired in trays within a silica tube heated at its middle to 1720‹ F. and containing an inert gas, the trays leaving by means of an air-lock. The fired material is crushed and refired, and then boiled with acetic acid or ammonium acetate to remove residual zinc oxide. The material is mixed with coldpressed castor oil and placed between a metal plate and a piece of conducting glass. Solid dielectrics such as nitrocellulose, waxes and plastics of high resistivity may be used. The colour under 500 volts, 60 cycles, is yellow or yellowish green and extends over a broad band including red. It may be mixed with a blueemitting electroluminescent material to give white light. Specifications 731,345, 731,364 and 731,367 are referred to.
Patent GB-119686-A (GB)
Title: Improvements in Locking Mechanism in connection with Hoists, Lifts and the like.
Inventor: CRYER JAMES WILFRED
IPC: B66B13/24
Filed: 1917-10-08
Abstract: 119,686. Cryer, J. W., and Mangnall, N. Oct. 8, 1917. Lift cages and doors, locking and unlocking and operating.-In lifts, hoists, &c. wherein the handing rope is locked whenever a door at any floor is open and wherein the doors cannot be opened unless the driving-belt is on the loose pulley, a locking bolt, bar, &c. is moved to engage an opening in or projection on the handing rope during the opening of the door. The sliding bolt d is mounted on one of the pickets of the collapsible gate b Fig. 1. and engages an opening a<2> in a plate a<1> forming part of the handing rope when the gate is collapsed, and the rope is in the position to which it is moved to stop the lift. Similar locking means may be applied to hinged or sliding doors.
Patent GB-1508523-A (GB)
Title: Stinger coupling
IPC: F16C11/04
Filed: 1976-04-09
Abstract: 1508523 Stringer coupling EXXON PRODUCTION RESEARCH CO 9 April 1976 [14 April 1975 18 March 1976] 14662/76 Heading F2P A pipelaying stringer S and a pipelaying vessel V have a releasable coupling comprises a pair of laterally spaced connectors A on the stringer and a corresponding pair of connections B on the vessel to form two laterally spaced joints J, wherein the two connectors of each joint are formed by a mole member 58 and a female member 34, 36 with tapered mating surfaces which allow each male member to rotate about a rotational point of contact with its associated female member to disconnect it therefrom when the other joint is disconnected, so that the stringer will disconnect automatically when only one connector is connected without damage to the joints. The joints may be aligned to form a hinge permitting the stringer to rotate about a horizontal axis. Each male member, formed by a pin 58, may be shaped such that its tapered portion is within an arc having a radius 88 substantially equal to the diameter of the pin, centred on the rotational point of contact, the female member being shaped to mate with the pin. Locking means may be provided to lock the male and female members into engagement with one another. Guide means 94 may be provided to guide the stringer connector into position. In further embodiments (Figs. 5, 6 and 7, not shown) the pins may be tapered to form conical surfaces or may be stepped cylindrical surfaces.
Patent GB-234300-A (GB)
Title: Improvements in or relating to scooters
IPC: B62K3/00
Filed: 1924-06-19
Abstract: 234,300. Headley, F. H. June 19, 1924. Foot-cycles; spring devices. - The rear wheel c of a scooter is carried by a part b of the frame, pivoted at b<1> to the front part a of the frame, one or more compression springs b<2> being interposed between transverse members d, f on the frame parts a, b which are each formed of two parallel strips of metal placed on edge.
Patent GB-352629-A (GB)
Title: Pressing apparatus for the reconditioning of worn fishplates for railway rails
IPC: B21K9/00
Filed: 1930-05-14
Abstract: 352,629. Re-forging worn fishplates. OBERBAU GES. FUR ERNEURUNG VON EISENBAHN-BAUSTOFFEN IM INUND AUSLANDE, 22A, Potsdamerstrasse, Berlin. May 14, 1930, No. 14851. Convention date, Sept. 21, 1929. [Classes 83 (ii) and 83 (iv).] A fishplate is provided with extra metal at o<1>, p<1> and q<1> so that when it is worn along the surfaces f, g it is pressed between dies to squeeze the extra metal to take up the wear without weakening the section of the plate at the bolt holes. Fig. 5 shows the re-worked plate.
Patent GB-274790-A (GB)
Title: Improvements in six wheel car truck construction
IPC: B61F3/10
Filed: 1927-02-14
Abstract: 274,790. Jensen, C. A., (Buckeye Steel Castings Co.). Feb. 14, 1927. Blocks and shoes. - In a six-wheeled truck for a railway vehicle, each side frame comprises three co-operating equalizing members 1, 2, 3, Fig. 1, each end member 1, 2 having a. bolster opening 8 containing a removable spring seat 12 carrying brake hanger supports 15, Fig. 3. Journal boxes 4 are carried by the end members, and brake hanger brackets 19 are bolted to the journal boxes so that one end extends forwardly and inwardly.
Patent GB-529404-A (GB)
Title: Improvements in surgical instruments for performing tracheotomic operations
IPC: A61M16/04
Filed: 1939-05-18
Abstract: 529,404. Surgical operating-appliances. ROSNER, I. May 18, 1939, No. 14881. [Class 81 (ii)] A surgical instrument for performing tracheotomy comprises a lance shaped knife and a tracheal cannula which is detachably secured to the shank at the end remote from the blade. The knife has a blade 1 and shank 2, the end 3 thereof remote from the blade being screwthreaded. The pointed end 6 is sharpened to provide two cutting edges 7. The knife is housed in a hollow tubular casing 8 through which the shank 2 extends, the portion 9 being of reduced diameter to form a grip and the flattened extension 10 normally accommodates the blade. A scale 13 along the edge of a slot 11, through which a fiducial mark 12 on the blade is viewed, serves to indicate the extent the blade projects. A beaded edge 14 acts as a check stop to the blade in operation. The opposite end of the casing 8 is enlarged to form a shoulder 15 meeting the end of a boss 16 formed on a nut 17 which is carried on the threaded end 3 of the shank 2 ; the boss 16 is held by a set screw 19 engaging the groove 18. The blade 1 is projected from or drawn into the casing by rotating the nut 17. The obturator 4 has one end attached to the shank 2 by means of an internally threaded boss 20. The tracheal cannula 5 slides snugly on the obturator 4. The cannula has attached at one end, a radial flange 21 having a pair of radial arms 22 which engage beneath the bridge pieces 23 provided on a shield 24 loosely fitted on the cannula, the shield thus having a limited movement about the cannula. In operation, having made an incision with the blade 1, the cannula 5 obturated by the obturator 4 is inserted in the incision. The obturator is then withdrawn, leaving the cannula held in position by the shield 24.
Patent GB-652060-A (GB)
Title: Improvements relating to apparatus for generating picture signals suitable for television transmission, from cinematograph film
Inventor: WHITE KELVIN DINGLEY
IPC: H04N5/253
Filed: 1948-06-03
Abstract: 652,060. Television transmitters ; photoelectric control systems. ELECTRIC & MUSICAL INDUSTRIES, Ltd. June 3, 1948, No. 14962. [Class 40 (iii)] Apparatus for generating television-picture signals from cinematograph film comprises a light source for projecting images of successive frames of the film on to the target of a television pick-up tube, means for generating a control signal in dependence upon the mean transparency of the film, and means for causing the control signal to control the intensity of the light image projected on to the screen so that as the transparency increases the intensity of the image is reduced relatively to the transparency and as the transparency decreases the intensity is relatively increased. The television pick-up tube 1 is of the cathode-potential-stabilized type wherein instability is liable to occur if the light-intensity at the target 2 becomes too great. Light from a source 15 is projected through a film 13 in the film-gate 10 on to the target 2 at which television signals are generated and applied to transmission circuits 9. Light from a further source 1@ is projected through the film 13 in a film-gate 18 on to a photo-cell 23 the output from which is proportional to the mean transparency of the frame in the gate 18. The photo-cell output is amplified at 25, integrated at 26 and applied to control circuit 27, which controls the intensity of the source 15. The gates 10 and 18 are spaced apart an integral number of film frames, the film passing through the gate 18 before the gate 10. The integrating circuit has a relatively long time constant so that rapid fluctuations of transparency are smoothed out and also so that the control circuit 27 does not respond to changes in transparency until the frame wherein the change occurs has reached the gate 10. Alternative methods of effecting control may be used; for example the dimensions of an aperture in front of the source 15 or the position of a shutter of varying transparency may be the controlled factor. The tendency to instability in the tube 1 may be further reduced in the manner described in Specification 652,059.
Patent GB-463764-A (GB)
Title: Improvements in or relating to the manufacture of luminescent bodies
IPC: C08K5/00
Filed: 1936-05-27
Abstract: In the preparation of luminous urea-formaldehyde bodies where, after the initial reaction of the urea and the formaldehyde, acidification is effected by adding an anhydride in admixture with an alcohol and boiling off the alcohol in vacuo at a moderate temperature, the luminescent substances are introduced in powdery form after the initial reaction but before or during the boiling, whereby they are distributed regularly in the mass.  The mass may be centrifuged to distribute the luminescent substances on the surface of the body.  If easily destructible luminescent substances are employed, the grains thereof may be coated with a semi - liquid formaldehyde - urea condensate before their introduction into the mass.  Specification 420,317 is referred to.
Patent GB-1313046-A (GB)
Title: Apparatus for inclusion in a screen printing machine
IPC: B41F15/44
Filed: 1971-05-14
Abstract: 1313046 Screen printing machines S ICHINOSE 14 May 1971 [15 May 1970] 14999/71 Heading B6C In a screen printing machine the squeegee is forced into contact with the screen by increasing the fluid pressure in an elastic tube 17 acting against the squeegee holder 15. The tube is contained within a hollow bar 10 provided with an aperture 12 to permit passage of the holder 15 and a fluid supply pipe 19. A pair of squeegees 16, 16<SP>1</SP> constructed as above may be held on a carrier 6 reciprocably mounted in a frame 5. As the carrier is reciprocated by drive chain 7 fluid pressure is alternately applied to the elastic tubes associated with squeegees 16 and 16<SP>1</SP> such that one squeegee contacts the screen 4 on the forward stroke and the other on the backward stroke. The sheet 3 to be printed may be held on an endless belt 2 passing over a table 1. Return springs 22 are provided to raise the squeegee on the release of the fluid pressure. In an alternative embodiment the squeegee arrangement is provided inside a rotary screen.
Patent GB-739063-A (GB)
Title: Aileron control mechanism
IPC: B64C9/00
Filed: 1952-06-13
Abstract: 739,063. Aileron control mechanism. HUNTING PERCIVAL AIRCRAFT, Ltd. [formerly PERCIVAL AIRCRAFT, Ltd.], and BRADBURY, C. Sept. 14, 1953 [June 13, 1952], No. 15016/52. Class 4. A control mechanism for an aileron 2 on a wing or rotor blade 1 comprises a block 9 of wedge shape which is pivoted on a vertical edge to the edge 7 of a bracket 6 secured to the wing or rotor blade and on an inclined edge 10 to a triangular link plate 12 in turn pivoted along another edge 13 to an inclined face of the aileron. of the aileron hinge and the forward edge 14 The edges 7, 10 and 13 intersect on the axis 3 of the block 9 is pivoted to an axially movable control rod 15, spanwise movement of which causes partial rotary movement of the block 9 which, through the link 12, causes pivotal movement of the aileron about its hinge 3. The hinges are sheets of flexible material, preferably rubberized fabric or oil resistant plastic material, and the aileron carries a servo-tab 16 operated in the manner described in Specification 739,080.
Patent GB-253910-A (GB)
Title: Improvements in and relating to electric power-transmission systems
IPC: H02P7/34
Filed: 1926-06-15
Abstract: 253,910. British Thomson-Houston Co., Ltd., (Assignees of Macmillan, C.). June 18, 1925, [Convention date]. Dynamos and motors combined for transmitting power.-In a system comprising an alternating current generator 1 driving an induction motor 5 controlled by resistances 15 - - 18 in the secondary circuit the generator voltage is maintained at a comparatively low value during low load (or speed) and reversal, but the generator voltage is increased for higher loads (or speeds) such increase forming preferably an additional acceleration stage. The excitation control is correlated with the secondary circuit control and with the reversing control by interlocks between separate drum controller elements, namely, a reversing drum 6, a drum 21, controlling excitation and the two initial resistance stages and a drum 19 controlling the two final resistance stages only. The field circuit of the generator 1 comprises a resistance 10 short-circuited by the drum 21 after the secondary circuit resistance 15 has been shortcircuited, and before resistance 16, in accelerating the motor. A variable resistance 11 in the field circuit may be used to fix the torque-speed of the motor as desired.
Patent GB-784388-A (GB)
Title: Improvements in fountain pens
IPC: B43K8/18
Filed: 1956-05-15
Abstract: 784,388. Reservoir pens. KOVACS, T. May 15, 1956 [May 25, 1955], No. 15059/56. Class 146(3) A fountain pen.is furnished at the front end with a nipple 13 provided with an axial bore in capillary communication with the reservoir, and with writing and drawing nozzles 26 mountable on the nipple, which have a wider rear bore for mounting the nozzle and a narrow bore extending therefrom to the tip of the nozzle in continuation of the axial nipple bore. The internal diameter of the wide rear bore of the nozzle 26 is considerably larger than the external diameter of the nipple 13, the nipple contacting only with its end face the mounted nozzle with a wide annular space 27 intervening between the nipple and the surface of the rear bore of the nozzle. The nozzle is provided with bores 28 open to atmosphere so that un removing the nozzle no suction is set up in the space 27 which would cause dirtying by ink of the nipple and nozzle. The pen is made up of a casing 1 into which is secured a hollow stem 3 of which the nipple 13 having a screwthreaded neck 12 for reception of the internally screwthreaded nozzle, forms a part. The internal surface of the stem 3 and the external surface of a sleeve 15 form the capillary channel through which ink passes from the reservoir to the nipple. Inside the sleeve 15 a rod 24 is mounted for axial movement. The rod 24 carries a flexible cleaning wire 25 and is mounted in a bush 20 having a grip 21 so that the bush, rod and cleaning wire may be withdrawn axially during a change of nuzzles. For cleaning the tongues 29, 30 of the nozzle 26 the rod 24 and wire 25 are depressed by pressing a plunger 22 which bears on the rod 24 and is mounted for axial movement in the bush 20 against the action of a spring 23. The nozzle 26 serves for drawing lines whilst another nozzle 26<SP>1</SP> is provided with an angularly bent writing tube 34 and serves for stencil writing.
Patent GB-272241-A (GB)
Title: Improvements in or relating to account cards for use with accounting machines such as cash registers, statistical machines and the like
IPC: G01R19/22
Filed: 1927-06-07
Abstract: 272,241. National Cash Register Co., (Assignees of Goldberg, M. M.). June 4, 1926, [Convention date]. Compiling statistics; checking receipts. - An account card for statistical work or for checking monetary transactions in savings banks &c., has an upper margin on which are printed the depositor's name and address and on which the account number is both printed and perforated, and has one part reserved for the printing of the date, nature of transaction &c., the remainder being used for recording the balance by perforating. The card is placed in the registering and recording machine with which it is to be used and the account number is set up on the keyboard. If this setting does not agree with the account number perforated, means are provided to prevent the operation of the machine. The old balance is picked up by the machine from the last perforations, the deposit or withdrawal is added or subtracted and the new balance is printed and perforated on the card. For tho perforations two codes are used, one each side of the central line 30 of control holes; Fig. 4 shews the codes. The holes 30 are used to set the card in the machine so that the next blank line is positioned correctly for printing and perforating.
Patent GB-503455-A (GB)
Title: Cathode ray tubes and circuits relating thereto
IPC: H01J29/74
Filed: 1938-05-20
Abstract: 503,455. Cathode-ray tubes. STANDARD TELEPHONES & CABLES, Ltd. May 20, 1938, No. 15104. Convention date, May 22, 1937. [Class 39 (i)] An auxiliary deflecting plate 10 is provided to produce a non-linear relationship between the deflecting voltage and the deflection of the beam, so as to correct for the curvature of the saw-tooth voltage. The plate 10 may have the same potential as the deflecting plate 1, Fig. 4 (not shown), or may have a lower potential derived from the potentiometer 11, 12. According to the Specification as open to inspection under Sect. 91, one electrode of the pair may be longer than the other; the deflecting electrodes may be curved ; and asymmetric magnetic deflecting fields may be employed. This subject-matter does not appear in the Specification as accepted.
Patent GB-1245897-A (GB)
Title: Improvements in or relating to apparatus for shearing sheet material
Inventor: ROSS HARRY HERMAN
IPC: B26D1/20
Filed: 1969-03-22
Abstract: 1,245,897. Cutting cards. P.C.A. DATA PROCESSING ACCESSORIES Ltd. 9 March, 1970 [22 March, 1969], No. 15149/69. Heading B4B. Apparatus for shearing sheet material, and particularly for cutting punched cards, which are connected in pairs along a perforated line, into two parts comprises a pair of fixed parallel cutting edges 12a, 13a, Fig. 2, which together define a gap 15 across which the sheet is laid and a rotary cutter wheel 30, Fig. 4, which is driven along the gap to coact with both cutting edges and shear a strip (including the perforated line) from the sheet. The cutter wheel is mounted in a retractable carriage 29 operated either manually or by a pedal and Bowden cable arrangement, Fig. 3 (not shown), in which case it is spring loaded, 68, Fig. 4. The card to be severed has a locating hole which registers on a locating pin 45a. The cutter wheel 130 comprises a cylindrical member provided with cutting edges 30a, 30b, Fig. 5, and fixed on a hub 33 which is located by sleeves 34, 35.
Patent GB-250422-A (GB)
Title: Improved nozzle for ladles used in pouring molten metal
IPC: B22D41/50
Filed: 1925-06-11
Abstract: 250,422. Hassall, J. K., and Harris, A. June 11, 1925. Addition to 224,113. Foundry ladles.-A nozzle for a ladle for pouring molten metal comprises an outlet portion b of fireclay and one or more portions a, at any position other than the centre, of magnesite. The magnesite portion may be in the form of a liner surrounded by fireclay. or the upper portion of the nozzle may be wholly of magnesite.
Patent GB-1362113-A (GB)
Title: Semiconductor devices
IPC: H01L23/049
Filed: 1972-03-30
Abstract: 1362113 Semi-conductor devices WESTING- HOUSE BRAKE SEMI-CONDUCTORS Ltd 7 March 1973 [30 March 1972] 15245/72 Heading H1K  A semi-conductor element 1 (Fig. 2) in thermal contact with a metal plate 2 is held within a housing 4, from which it is electrically insulated by a foil 3, by a mass 5 of potting compound. It may be brazed or soldered to the plate or if encased may have its housing bolted thereto. Copper and aluminium are suitable materials for plate 2 and polyethylene terephthalate, polycarbonates and the materials known under the Trade Marks Mylar and Makrofol for the foil. In the described embodiment the channel-section housing 4 has its ends apertured for securing to a chassis and the potting compound is preferably bounded by insulating plate 6 and similar plates located near the ends of the channel.
Patent GB-418605-A (GB)
Title: Improvements in or relating to illuminated clocks
IPC: G04B19/30
Filed: 1933-05-26
Abstract: 418,605. Clocks. CLAUDE-GENERAL NEON LIGHTS, Ltd., and HIGGINS, C., Queen's House, Kingsway, London. May 26, 1933, No. 15258. [Class 139.] In an illuminated clock in which light sources such as luminous discharge tubes are mounted on the hands, the terminal 8 of one of the luminous tubes 1 is connected to a conductor 7 passing through a tube of borosilicate glass 6 within the hollow arbor 5 of the hand. The other end of the conductor 7 is connected to a spring contact 10, 11 engaging a fixed strip 13 the pressure of which can be adjusted by bolts 14, 15 on either side of a roller 18. The other terminal of the tube 1 is connected to the hand which is earthed. The central part 20 of the clock face is secured to the arbor 21 of the other hand, and one terminal of the corresponding luminous tube is connected through a bushing 24 to a slip ring 22. A fixed strip 28 makes contact with the ring 22. Alternatively, the ring 22 may be stationary, and the arbor 21 may carry a spring contact engaging with it.