baber/WOPTO huggingface dataset:
Patent GB-675320-A (GB)
Title: Improvements in or relating to television pick-up tubes
IPC: H01J31/64
Filed: 1950-01-26
Abstract: 675,320. Cathode-ray tubes. CINEMATELEVISION, Ltd., and FREEMAN, G. S. P. Jan 25, 1951 [Jan. 26, 1950], No. 2082/50. Class 39 (i). A television pick-up tube includes a doublesided target electrode which comprises a thin high-resistance layer covered on the side facing the scanning gun with a thin layer of insulating material which becomes locally conducting when penetrated by electrons, covered in turn by a thin conducting layer permeable to electrons of high velocity. Electrons from photocathode 1 with velocities of 2000 volts, strike the high-resistance glass layer 2, e.g. conducting glass, and by secondary emission from the surface and leakage through the glass, form a charge image on the adjacent face of layer 3 which is of silica or magnesium fluoride. The scanning beam of high velocity penetrates the signal layer 4 of beryllium or aluminium and the layer 3 and renders the latter locally conducting, so that the charge image is converted to a signal at lead 8. The tube may be of the iconoscope type in which case the high resistance layer 2 is covered with a mosaic of photo-electric elements.
Patent GB-601582-A (GB)
Title: Improvements in or relating to machine carbines
IPC: F41A19/33
Filed: 1945-09-29
Abstract: 601,582. Smallarm magazines. BIRMING- HAM SMALL ARMS CO., Ltd., PERRY, C. A., and WACKROW, R. D. Sept. 29, 1945, No. 2089/47. Divided out of Complete Specification of 601,517. [Class 119] In a machine carbine comprising a magazine carried in a magazine holder 17, mounted on a pivot 18 so that the magazine which is normally perpendicular to the carbine may be turned to lie parallel with the carbine, the holder is held in folded position by a spring plunger 19 and in operative position by a spring catch 27. A flexible arm 29 guides the rounds into the barrel. The magazine is retained in the holder 17 by a spring catch 21.
Patent GB-482333-A (GB)
Title: Improvements in or relating to automatic steering gear for aircraft
IPC: G05D1/02
Filed: 1936-06-23
Abstract: 482,333. Fluid-pressure servomotorcontrol systems. SPERRY GYROSCOPE CO., Inc. June 23, 1936, No. 2128/38. Convention date, July 19, 1935. Divided out of 480,776. Drawings to Specification. [Class 135] The subject-matter of this Specification is included in Specification 480,776, but the claims differ.
Patent GB-450851-A (GB)
Title: Improvements in valves for automatically cutting off gas supply
IPC: F16K17/00
Filed: 1935-01-23
Abstract: 450,851. Safety cut-off gas valves. KONSTRUKTIONSBURO KIESEL GES., 8, Franz Josephstrasse, Munich, Germany, and ARQUINT, H., Sursee, Switzerland. Jan. 23, 1935, Nos. 2239 and 2240. Convention dates, Jan. 24, 1934 and Jan. 10, 1935. [Class 135] A gas valve for automatically cutting off the supply in the event of a failure of pressure comprises a casing 1 having an inlet 2 and an outlet 3. The inlet 2 terminates in a seating 4 for a diaphragm 7. The diaphragm is normally held off its seating by the combined effect of the inlet and outlet pressures against a spring 14, but in the event of either pressure falling below predetermined minima the spring 14 presses the diaphragm onto its seat to cut off the supply of gas. A small permanently open byepass 20 from the inlet to the outlet enables the pressure to build up again on the outlet side of the valve, provided the gas cocks of the supply system are closed, and the valve to re-open automatically. A passage 11, 12 is also provided from the inlet to a chamber 8 above the diaphragm which is provided with a vent aperture 16. When this vent is left open the valve will re-open automatically as described above, but if this vent is closed the loading of the diaphragm is increased by the gas pressure building up in the chamber 8 and the valve will not open until this pressure is relieved. The valve may be arranged in a byepass line and operate electrical contacts to actuate a main valve in the main gas line. Specification 26097/06, [Class 135], is referred to.
Patent GB-565989-A (GB)
Title: Improvements in and relating to the drying of pottery ware
IPC: F26B15/04
Filed: 1943-02-12
Abstract: 565,989. Drying systems. SWINNERTONS, Ltd., and BLOORE, R. B. Feb. 12, 1943, Nos. 2328 and 5797. [Class 34 (ii)] Articles of pottery are dried by being subjected while on moving mould or ware supports to the direct action of jets of hot air. In the example, the pottery ware is placed on shelves 16 carried around a drum 10 on a vertical axis. Air being directed downwardly from trunks 20 through jets 20a upon them as they pass from one end to a delivery opening. Rectilinear traverse on conveyer links can also be used.
Patent GB-1454563-A (GB)
Title: Elongate slit nozzle feeding a roller nip
IPC: B29C48/07
Filed: 1974-01-17
Abstract: 1454563 Feeding roller nips HERMANN BERSTORFF MASCHINENBAU GmbH 17 Jan 1974 [3 March 1973] 02341/74 Heading B5A A rubber or plastics material sheet is formed between opposed rolls 12, into the nip of which the material is delivered from an elongate extrusion nozzle defined between flexible die lips 6, 7, e.g. of sheet metal, which are urged by the pressure of the material into sealing contact with the roller surfaces. The lip surfaces contacting the rolls 12 are coated with polytetrafluoroethylene, and the extent of penetration of the lips into the nip is variable by displacement of the nozzle for the nozzle to project up to the narrowest portion of the nip. The apparatus enables the size of the material vortex into the nip entry to be regulated; prevents air being drawn into the nip, and reduces flexing of the rolls arising from the vortex.
Patent GB-1520702-A (GB)
Title: Window
IPC: B60J1/14
Filed: 1977-01-20
Abstract: 1520702 Car window; operating vehicle windows REGIE NATIONALE DES USINES RENAULT 20 Jan 1977 [11 Feb 1976] 02350/77 Headings E1J and E2M A sliding window for the front door of a motor car comprises two panes 8, 9 each in the shape of a sector of a circle. The panes are pivoted at 11 and may slide in the guide 10 to open and shut the window. A combined handle and lock member 15 engaging in recesses 17 in a rail 16 may be provided. Alternatively an actuating device 26 is provided comprising racks 27, 28 attached to the curved (lower) edges of the panes 8, 9 pinions 29, 30 fixed to the axially slidable shaft 32, a handle 33 and a selector /locking arrangement 39, 41. The pinion 29 directly moves rack 27 and pane 8 and pinion 30 drives pinion 31 which moves rack 28 and pane 9, the pinions being selectively engaged by moving shaft 32 axially in or out.
Patent GB-371877-A (GB)
Title: Improvements in and relating to hydraulic and other pumps
IPC: B05B17/08
Filed: 1931-01-24
Abstract: 371,877. Regulating reciprocating pumps. DANIELS, Ltd., T. H. & J. and DANIELS, J. S., Lightpill Iron Works, Stroud, Gloucestershire. Jan. 24, 1931, No. 2438. [Class 102 (i).] A reciprocating pump of the type comprising several plungers wherein the number of plungers operating decrease as the delivery pressure increases and the number increase as the delivery pressure decreases are provided with pressure sensitive means in certain or all of the cylinders to operate the byepass valves of the respective cylinders. Fig. 2 shows a pump comprising two plungers 6, 7 of different diameter actuated by cranks. A suction vessel is formed in the bed of the pump and the cylinders have suction valves 14, 16 and delivery valves 15, 17 leading to a common delivery 18 and connected to chambers 19, 20. In each of the chambers 19, 20 is a spring- loaded plunger 21 provided with a slot 31 in which engage levers 32, 38. The lever 32 carries a roller 33 engaging a link 34 biased by a weight 36 and notched at 35 in which engages a lever 38 engaging a rod 40 biased upwards by a spring 41 and adapted to operate the byepass valve 46. The lever 38 is cut away at 38a to allow lost motion in the groove 31. As the delivery pressure rises the lever 38 is tripped and the valve 46 opened and as the delivery pressure falls the rod 40 is pulled downwards and the valve 46 allowed to close. The spring loading of the plungers 21 varies for each cylinder.
Patent GB-370081-A (GB)
Title: Improvements relating to the delivery of slivers from textile machines into cans
IPC: B65H67/04
Filed: 1931-01-24
Abstract: 370,081. Doffing arrangements for reciprocating cans. MACKIE & SONS, Ltd., J., Albert Foundry, Belfast.-(Paisley, P. ; Vier Jahr Zeiten Hotel, Hamburg, Germany.) Jan. 24, 1931, No. 2448. [Class 120 (iii).] In textile preparing machines in which slivers are packed into cans carried on a reciprocating platform, the cans are doffed and replaced by empty ones by being alternately moved with the platform and retained by a fixed member against return movement so that they are progressively moved into the desired positions. Cans 1, 1a, 1b are carried by and reciprocate with a platform 5 consisting of two angle sides sliding on runners 6 sunk in the floor, the platform also carrying a plate 7 which is not in contact with the bottoms of the cans but reciprocates with the platform while the cans are being filled. Sliver is fed into can 1 from the rollers of a carding engine through an oscillating funnel 4 so that it is piled in the can in zig-zag formation, as in Specification 290,791, [Class 120 (iii), Yarns &c.]. The platform is reciprocated through a sprocket 14, crank 11, and connecting-rod 12 and, for each revolution of the sprocket 14, a pin 26 thereon depresses a pawl 25 and moves a ratchet wheel 24 carrying a cam 27 ; and, just as the can 1 is filled, the cam 27 reaches the position to depress one end of a pivoted lever 19 and cause the other end to engage a catch 17 indirectly connected to the plate 7 and prevent the latter from moving to the left during two complete reciprocations of the platform and cans. The plate can then make only a very slight movement to the right due to a stop 9 thereon engaging a stop 10 fixed to the floor. During these two reciprocations, the cans move the usual distance from left to right but they are permitted to move only a very short distance in the opposite direction by reason of spring-pressed pawls 28 on the plate 7 which engage against ribs on the bottoms of cans la, 1b and pawls 33 in recesses in the floor which engage the ribs on can 1. At the conclusion of the second reciprocation all the cans have been moved approximately one place to the right and sliver is being packed into can 1a, and the lever 19 is disengaged from the catch 17 thus allowing the plate 7 once more to reciprocate with the platform. Due to the pawls 33, the can 1 is moved progressively to the right during subsequent reciprocations of the platform and is finally pushed off the platform and advanced a short distance along the floor, or arrangements could be made to convey it any distance desired. When the plate 7 is released it is brought into its usual position relative to the platform by the stops 9. 10. The sliver between cans 1, 1a is held by a canvas belt 37 which is wide enough to cover a can and passes round rollers 36 so that the sliver is severed as the cans reciprocate. Alternative devices for this purpose consist of a plate which falls and clamps the sliver, or rollers freely mounted or positively rotated.
Patent GB-1088511-A (GB)
Title: Improvements in welding control system
Inventor: VILKAS EUGENE P
IPC: B23K9/02
Filed: 1965-01-20
Abstract: 1,088,511. Automatic control systems. WELDING RESEARCH, Inc. Jan. 20, 1965 [Sept. 21, 1964], No. 2462/65. Heading G3R. An automatic welding control system includes apparatus for sensing the position of the welding electrode with respect to the workpiece and apparatus for changing the welding current, arc voltage and/or welding speed in dependence upon a position error signal, which parameters determine the weld penetration, whereby the weld penetration is maintained constant. As shown, the arc voltage between a non-consumable electrode 10 and a workpiece 11 is maintained constant by a conventional electrode positioning system 16 to 25, the changes in electrode position being detected by sensing apparatus 30 to 35 to produce an error signal at a potentiometer 38. The output of the welding current source 12 is controlled by a signal derived from a potentiometer 40 associated with a supply source 41 to 46 and after a predetermined time delay produced by the operation of a relay system 49 to 60, to this control signal is added the position error signal from potentiometer 38; the welding current is then controlled in dependence upon this error signal. Thus, if the positioning system 16 to 25 causes the electrode 10 to move away from the workpiece 11 in order to maintain a desired arc voltage, then a position error signal will arise at potentiometer 38. This error signal, applied to the current source 12, will cause the welding current to increase whereby the weld penetration will also increase so that the electrode 10 will move toward the workpiece 11 and tend to return to its original position as is required to hold the weld penetration constant. In other embodiments, the welding current is maintained constant and the position error signal is used to modify the arc voltage control system Fig. 2 (not shown), or the welding speed Fig. 5 (not shown). In another modification Fig. 3 (not shown) the system is arranged to provide an arc length which varies inversely with current below a certain value to maintain constant weld penetration at constant arc voltage, and a constant arc length with current above the said value.
Patent GB-412322-A (GB)
Title: Wire bracket
IPC: A47B96/06
Filed: 1933-01-26
Abstract: 412,322. Wire brackets; step-ladders. FAGEN, S., 5, Walter Street, Hulme, Manchester. Jan. 26, 1933, No. 2463. [Class 52 (v).] A wire bracket for supporting shelves, stock racks, the treads of step-ladders &c. comprises a single piece of wire having a bent end b adapted to take in a hole in one upright a, a horizontal portion adapted to support the shelf &c., a bent portion d adapted to seat in a channel formed in a second upright e spaced from the first, and an inclined strut portion g bent at its end c to take in a lower hole in the first upright. The ends b, c are sprung into the holes, and secured by riveting them over washers, and the channels in the second upright are closed by a capping plate f. The shelf, tread &c. is shaped at the ends to fit between the uprights.
Patent GB-560192-A (GB)
Title: Production of knitting by mechanical means
IPC: D04B39/00
Filed: 1942-08-11
Abstract: 560,192. Knitting-machines. SMITH, H. N., and SMITH, E. E. Aug. 11, 1942, No. 2496/44. Divided out of 554,036.. Drawings to Specification.. [Class 74 (ii)] A machine with loop-forming means as described in Specifications 536,489 and 551,370 is provided with loop-accepting members for receiving the new loops formed ; the old loops are released from the guard members and the new loops are released from the looping means, and subsequently by relative movement between the accepting members and the guard members the new loops are transferred from the accepting members to the guard members. The invention is described in Specification 554,036 in combination with means for varying the number of separate loops awaiting co-operation with the looping means.
Patent GB-363190-A (GB)
Title: Plant for producing printing varnish
Filed: 1931-01-26
Abstract: <PICT:0363190/III/1> In a plant for producing printing varnishes of low acid strength comprising a closed boiler a fitted with inert gas and compressed air connections and a fan d for drawing off vapours, a water cooled condenser b, and a tubular cooler c communicating with the condenser b, are provided between the fan d and the boiler.  The latter is supplied with a neutral gas, e.g. carbon dioxide, from a cylinder k through a vessel h and pipe g leading to a socket in the boiler lid f which is also provided with airtight flaps having sieve-like inserts designed to prevent ignition from the outside. A final separator e is provided between the fan d and the exhaust flue w.
Patent GB-1194061-A (GB)
Title: Improvements relating to Pressure Exchanger Rotors
Inventor: WILLIAMSON DOUGLAS HERBERT
IPC: F01D5/22
Filed: 1968-01-17
Abstract: 1,194,061. Pressure exchangers. ROLLSROYCE Ltd. Jan. 13, 1969 [Jan. 17, 1968], No.2545/68. Heading F1N. A pressure exchanger rotor comprises a plurality of angularly spaced vanes 26 having radially inner and/or outer shroud portions 45, 34 collectively constituting the inner and/or outer shrouds respectively, the portions slidingly abutting each other in a manner such that differential thermal expansion between the shrouds and vanes is accommodated. The sliding abutments may be in the form of tongue and groove connections, Fig. 5 (not shown), circumferentially overlapping complementary steps on adjacent portions, or co-operating sloping surfaces 47. The sloping surfaces are forced against each other by making the assembly of vanes an interference fit. The centre of gravity of each shroud portion is circumferentially offset with respect to that of its vane whereby in operation, the centrifugal forces act to force the sloping surfaces together. Each vane has a dove-tail or cylindrical root 32 received in recesses in a hub.
Patent GB-1060559-A (GB)
Title: Alkaline cleansing and rinsing agents
IPC: B01D19/04
Filed: 1966-01-20
Abstract: Alkaline cleansing and rinsing agents, in solid form, which contain 40-95% of alkali together with foam suppressing addition compounds formed by ethylene oxide and/or propylene oxide having a turbidity point in 1% aqueous solution of 10-60 DEG  C., which are deposited on finely divided silica.  The addition compounds are formed from ethylene oxide with a compound selected from fatty acids, fatty alcohols, fatty acid alkanolamides, alkyl phenols, polypropylene glycols and adducts of propylene oxide with aliphatic amines or polyamines or from propylene oxide with a compound selected from, polyalcohols, polyethylene glycols, sugars, short chain alkanolamides and aliphatic polyamines having 2 to 8 nitrogen atoms and 1 to 5 carbon atoms between nitrogen atoms.  Acid salts such as primary-alkali phosphate and alkali bisulphate may also be present and other optional ingredients are orthophosphates, polymeric phosphates, soda, potash, gluconate and wetting agents.
Patent GB-1163450-A (GB)
Title: Improvements in Fire Extinguishing Apparatus
Inventor: LEWIS WILLIAM
IPC: A62C33/04
Filed: 1967-01-18
Abstract: 1,163,450. Hydrants. SAMUEL JONES & CO. (ENG.) Ltd. Feb.14, 1968 [Jan. 18, 1967], No.2591/67. Heading F1X. [Also in Division E2] A hose nozzle is secured to a hydrant valve so that its removal is prevented except when the valve is open by a yoke 3 on a bracket 1 secured to a stationary gland casting 2 of the valve and an arm 9 dependent from a sleeve 7 rotatable on the spindle 8 of the valve and abutting valve handle 11 so that the valve is screwed down and closed the nozzle 12 is retained in position between the yoke and arm. The arm 9 has a projecting pin 10 which engages in a recess in a guide boss 4 in the bracket to maintain the arm and yoke aligned. The clamp is released manually when the valve is opened or it is released automatically by a spring between the sleeve and valve gland nut or by a pin on the spindle engaging the sleeve.
Patent GB-592860-A (GB)
Title: Improvements in or relating to methods of depositing layers of fine particles of luminescent material on supports
IPC: H01J9/22
Filed: 1945-02-01
Abstract: 592,860. Luminescent materials and applications. CINEMA-TELEVISION, Ltd., and HEAD, R. B. Feb. 1, 1945, No. 2593. [Class 39 (i)] [Also in Group XXXVI] A layer of particles of luminescent material is deposited on a support from a suspension of the particles by charging the support electrically, the support being positioned with the whole if its receptive surface facing downwards so that only the finer particles are deposited. The support may be of metal or metal coated, for example with a thin film of platinum, aluminium or silver, and a voltage gradient is applied between the support and an electrode. The particles may be settled from a still or flowing gas, such as air, in which case luminescent materials suitable are, for example, zinc silicate, cadmium silicate and zinc sulphide. The particles may be bound by settling on the support a layer of phosphoric acid from a gaseous suspension or by the method described in Specification 586,524, either before or after deposition is effected. Alternatively the particles may be deposited from a liquid, for example an organic liquid such as acetone. The support may be treated with a binder as above, or alternatively it may be dipped in a liquid binder such as a solution of 1 per cent phosphoric acid in acetone. The support may then be baked.
Patent GB-554575-A (GB)
Title: Improvements in electromagnetic horn aerials
IPC: H01Q13/02
Filed: 1942-03-02
Abstract: 554,575. Wireless signalling; aerials. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. March 2, 1942, No. 2764. Convention date, March 1, 1941. [Class 40 (v)] An electromagnetic horn radiator 5 is provided with a conductive shield 11 extending from its mouth 6 backwards towards the throat end. The shield may extend only a short distance towards the throat and may be conductively connected to the mouth end. A radio relay station may comprise two such horns 5, 15 facing in opposite directions and connected by an amplifier 20 located within the shield. To reduce feed back, the transmitting aerial 19 may be at right angles to the receiving aerial 9, so that the received and transmittted waves are differently polarized. The shield 11 may cover both horns and be fixed at the top of a tower 25. Specification 551,585 is referred to.
Patent GB-566945-A (GB)
Title: Improvements in and relating to variable resistances for operation at high frequencies
IPC: H03H7/24
Filed: 1943-02-19
Abstract: 566,945. Impedance networks. MAYO, C. G. Feb. 19, 1943, No. 2816. [Class 40 (iii)] An impedance network comprises a differential condenser of total capacity C connected, as shown in Fig. 4, in series with an inductance L shunted by a resistance R, L being substantially equal to C.R<2>, or associated, as shown in Fig. 5, with resistances R1, R2, R3 and a condenser C3 equal to C.R1.R2/(R1.R3+R3<SP>2>). When the two fixed plates of the differential condenser have the same potential, the circuit between them and the other terminal of the device has in both cases the characteristics of a resistance. The application of this circuit in a measuring bridge is included in the subject-matter of Specification 566,970, [Group XXXVI], and is described in the present Specification.
Patent GB-316851-A (GB)
Title: A new or improved device for attaching pencils, pens and the like to the hand
IPC: B43L15/00
Filed: 1929-01-29
Abstract: 316,851. Kahn, W., and Franx, H. T. L. Jan. 29, 1929. Finger attachments, - A device for attaching a pen, pencil, or the like to the hand consists of a split spring ring 1 adapted to be secured to the finger, and an endless expansible band 3 of spring wire for holding the pen &c. in or out of writing-position. The band & is preferably formed of a flattened spiral of wire and is pivotally attached to the ring 1.