baber/WOPTO huggingface dataset:
Patent GB-148679-A (GB)
Title: Improvements in electrical transformers
IPC: H01F21/04
Filed: 1919-06-27
Abstract: 148,679. Crowther, H. L. June 27, 1919. Transformers.-The primary and secondary windings 4, 5 of a transformer are wound as twin wires on two bases, the ratio of the inductance of the primary and secondary windings on one base being the same as that of the windings on the other base, and the bases are adjustable relatively to one another in order to vary in equal proportions the selfinduction of the primary and secondary circuits. The transformer is especially adapted for use with the thermionic valves 9, 15 of a wavereception apparatus, the primary winding 4 being connected to the anode 8 of the first valve and to the battery 12, while the ends of the secondary winding are connected to the grid 14 of the second valve and to the battery 18. The windings are of equal inductance and may be wound in the form of flat disks which can be moved one over the other or reversed in order to vary the inductance for tuning purposes. In a modification, the twin wires are wound consecutively on two bases one of which is adjustable within the other about an axis lying in the planes of the windings. When more than one transformer is used, they are arranged as shown in Fig. 3, with a number of pairs of windings on two bases 19, 20. One of the bases slides in a groove in the other so that it is possible to tune all the transformers to the same natural period with one adjustment.
Patent GB-1253777-A (GB)
Title: A REVERSIBLE CELL HAVING RbAg4I5 AS ELECTROLYTE AND A SILVER ANODE
IPC: H01M10/36
Filed: 1970-04-06
Abstract: 1,253,777. Solid state electric cells. CONSIGLIO NAZIONALE DELLE RICERCHE. 6 April, 1970 [9 April, 1969; 18 July, 1969], No. 16242/70. Heading H1B. A reversible and rechargeable solid state electric cell comprises a Ag anode and a solid electrolyte of RbAg 4 I 5  which is free from all trace of impurity, and a cathode mix of molecular iodine and graphite which contains tetrabutyl-ammonium iodide as cathodic depolarizer. The anodic contact resistance is reduced by either amalgamating the Ag anode with mercury or by forming the anode by the electrolytic deposition of Ag on the surface of the solid electrolyte. The cells have a sandwich-type structure and the layers can be assembled to form a battery.
Patent GB-623370-A (GB)
Title: Improvements in or relating to yoltage regulators
IPC: H02P9/26
Filed: 1945-06-21
Abstract: 623,370. Automatic control system for alternators. STEVENS, A. H. (Submarine Signal Co.). June 27, 1945, No. 16359. [Class 38 (iv)] Voltage.-To maintain the output voltage of an alternator 1 constant, a gas-filled valve 6 is shunted across a resistor 5 in series with the alternator field coil 3, and is arranged to take a mean current which varies inversely with the alternator voltage. This is effected by rectifying the alternator voltage by means of rectifiers 18 and 22, the D.C. output of the former being used to bias the latter so that its output varies in accordance with the alternator voltage. The output of the rectifiers 22 is applied in a negative sense to valve 6 with only partial smoothing so that the fraction of the alternator cycle during which it conducts is varied in accordance with the alternator voltage. A thermal delay device 12 is provided.
Patent GB-184320-A (GB)
Title: Improvements in and relating to apparatus for spraying and diffusing liquids
IPC: A01M7/00
Filed: 1921-06-14
Abstract: 184,320. Kendall, J. J. June 14,1921. Disinfectant liquids, delivering. - Relates to apparatus for spraying and diffusing liquids such as disinfectants, deodorants, &c. of the kind in which the pressure of a domestic water supply is used to act upon a body of air within a reservoir containing the insecticide in order to force the latter into the water flowing through a hose pipe, such as that described in Specification 167,900. The mixture ratio is determined by varying either the quantity of water supplied to the mixing chamber or the quantity of air passing between the container for water and that for the insecticide. Water is delivered from the main supply through a valve b. Fig. 1, to a reservoir a and thence through a pipe e to the mixing chamber h. The ratio of insecticide to water may be varied either by means of a valve n .in the pipe e or by means of a valve r in the, air pipe d. The valve is provided with a graduated operating disc o and index p. The mixing chamber h, Fig. 2, is provided with a constriction q at its entrance immediately in front of the duct k and the reservoir c is mounted below the mixing chamber.
Patent GB-1432361-A (GB)
Title: Thiadiazolylmonoazo compounds and textile materials dyed  therewith
IPC: C09B29/08
Filed: 1972-04-10
Abstract: 1432361 5 - Acetamido - N - sec. - butyl - 2- methylaniline EASTMAN KODAK CO 6 July 1973 [10 April 1972] 16455/72 Heading C2C [Also in Divisions C4-C5] 5 - Acetamido - N - see. - butyl - 2 - methylaniline is prepared by hydrogenating at 165‹ C. and 1000 p.s.i. in an autoclave a mixture of 3 - amino - 4 - methyl - acetanilide, 2 - butanone, ethanol and a Pt catalyst.
Patent GB-851906-A (GB)
Title: Receptacle with a handle
Inventor: DUGAN-CHAPMAN CHARLES
IPC: A45C13/26
Filed: 1958-05-22
Abstract: 851,906. Baskets ; handles. STEWART PLASTICS Ltd. Jan. 16, 1959 [May 22, 1958], No. 16483/58. Classes 18 and 133. A moulded synthetic plastics trug 1 has sockets 3, on opposite sides of a peripheral thickening 2, for engaging ends of an arcuate handle 5 which comprises a shoulder 7 and a tongue 6, registering holes being formed in the socket bottom walls and tongues to secure the handle 5 by screws 13. Alternatively, a rivet may be passed right through the handle tongue and both socket side walls on each side.
Patent GB-375972-A (GB)
Title: Improvements in the manufacture and production of compound glass
IPC: B32B17/10
Filed: 1931-06-06
Abstract: Rubber materials such as cr<\>zepe rubber, balata, guttapercha and polymerization products of butadiene are partially or wholly hydrogenated in solvents such as cyclohexane, decahydronaphthalene or petroleum fractions of saturated hydrocarbons boiling between 80 DEG C. and 200 DEG  C., at temperatures between 240 DEG  C. and 350 DEG C. for natural rubber and between 50 DEG  C. and 150 DEG  C. for synthetic rubber and at pressures between 30 and 200 atmospheres, in the presence of catalysts such as nickel, cobalt and platinum.ALSO:Rubber materials such as cr<\>zepe rubber, balata, guttapercha and polymerization products of butadiene are partially or wholly hydrogenated in solvents such as cyclohexane, decahydronaphthalene or petroleum fractions of saturated hydrocarbons boiling between 80 DEG  C. and 200 DEG  C., at temperatures between 240 DEG  C. and 350 DEG  C. for natural rubber and between 50 DEG  C. and 150 DEG  C. for synthetic rubber and at pressures between 30 and 200 atmospheres, in the presence of catalysts such as nickel, cobalt, and platinum.
Patent GB-713448-A (GB)
Title: Improvements in or relating to suction cleaners
IPC: A47L9/22
Filed: 1951-07-13
Abstract: 713,448. Suction cleaners. DEHN, S. G. (Interstate Engineering Corporation) July 13, 1951, No. 16675/51. Class 8 (1). [Also in Group XXXV] A suction cleaner of the horizontal cylindrical type having a motor driven suction unit 75 resiliently mounted therein (see Group XXXV) and discharging through an opening 110 in an end cap 100 of the cleaner casing 5 and to which a blowing hose may be connected has its filter bag 65 mounted about a vertical axis at the forward end of the casing 5; the open top of the bag 65 being in communication with a space 57 beneath a hinged.cover 40 having a dust-laden air inlet 48. A carrying handle 30 is secured to the casing 5 by pins 24, 25 and the latter pin serves as a pivot for the cover 40. The casing 5 is closed by an end cap 100 which carries a push switch 125 and a plug socket 116.
Patent GB-1473944-A (GB)
Title: Temperature compensated pressure differential sensing device
IPC: H01H35/28
Filed: 1974-04-17
Abstract: 1473944 Sensing pressure loss in helicopter rotor blades D T MEISENHEIMER 17 April 1974 [23 April 1973] 16811/74 Heading B7W [Also in Division G1] A pressure sensor 80 to sense loss of gas from a pressurized helicopter rotor blade as an indication of fracture or damage comprises a sealed and flexible capsule 40 filled with gas at a predetermined pressure and mounted in a space adapted to communicate via bore 95 with the chamber, and a switch 52 coupled to signal means such as an indicator lamp (not shown) for sensing expansion of the capsule due to gas loss from the chamber and for providing a signal in response thereto the switch 52 or the capsule 40 being mounted in a housing 81 by means of threaded collars 98, 99 such that rotation of collar 99 from outside the housing causes axial movement of collar 98 and thus adjustment of the position of capsule 40 relative to the switch 52 for calibration purposes. The predetermined pressure in the capsule 40 is selected such that the size of the capsule remains substantially constant over a range of temperature variations such as are caused by changes in altitude of a helicopter and which cause pressure changes in both the capsule and the chamber. The capsule can be filled via a stem 42 at 200‹ F., preferably with the same gas as is in the chamber, e.g. a mixture of 10% helium and 90% nitrogen. Preferably the predetermined capsule pressure is less than that in the chamber so that if the capsule leaks it expands and a signal is given. As shown the capsule 40 comprises two peripherally joined convoluted diaphragms. Alternatively it could comprise a bellows. The capsule is mounted in a collar in a sealed housing next to a mechanically operated switch 52 linked to a warning lamp (not shown). Reference has been directed by the Comptroller to Specifications 1,218,954 and 1,235,345.
Patent GB-989703-A (GB)
Title: Improvements relating to the processing of smoking tobacco
Inventor: GREEN SYDNEY JAMES
IPC: A24B15/24
Filed: 1963-04-29
Abstract: A method of treating tobacco comprises extracting the tobacco with a chilled solvent solidifying and freeze-drying the extraction.  In one example, the tobacco is reduced to about 1/8 inch particle size and extracted with ice cold water using six parts by weight of water to each part of tobacco by percolating the water through the tobacco supported as a bed on a filter screen at a rate of 5 ml per minute the percolated liquid being immediately frozen at -50 DEG C. the water removed by freeze-drying and the tobacco dust in a drying chamber at about 35 DEG C. at pressures varying from 0.1 mm. to 0.05 mm. of mercury. The smoking tobacco is dusted evenly with the powder produced the additive being 5% to 10% by weight.  The powder may be dissolved in a chilled solvent and sprayed on the tobacco or it may be added to the material used in packaging.
Patent GB-519011-A (GB)
Title: Improvements in thermionic amplifying circuits for relaxation oscillations
Inventor: SCHLESINGER KURT
IPC: H03K6/02
Filed: 1938-06-07
Abstract: 519,011. Valve generating circuits. RADIOAKT.-GES. D. S. LOEWE. June 7, 1938, No. 16871. Convention date, June 10, 1937. [Class 40 (v)] To enable the non linear region of a valve.to be used for amplifying saw-tooth oscillations, a tuned choke is included in the anode circuit. The choke 7 has a natural period approximating the frequency of the abrupt stroke of the oscillations and may be shunted by a variable resistance 7a. If the invention is applied to a circuit for wide angle deflection of the type described in Specification 521,637, the phase of the primary potential in auxiliary transformer 12 must be advanced in relation to the phase of the anode current of valve 2 and this is effected by the provision of condenser 14. The amount of the auxiliary potential is adjusted by resistance 15 which is bridged by choke 16 having a low natural frequency.
Patent GB-631406-A (GB)
Title: Improvements in or relating to vapour electric discharge devices
IPC: H01J13/22
Filed: 1947-06-26
Abstract: 631,406. Metal-vapour discharge apparatus. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. June 26, 1947, No. 16898. Convention date, July 12, 1940. [Class 39 (i)] A vapour electric discharge device comprises a mercury cathode 2, Fig. 1, a shield 8, 9, 104, 105 surrounding the sides and back of the main anode 5, a deionizing grid 11, a baffle arrangement 15, 17 between the grid 11 and the cathode 2, an insulating barrier 4 such as a quartz ring for confining the active cathode area, and a make-alive electrode 3. The members 8, 11 may be of graphite and integral, as shown, or the shield may be of metal and the deionizing grid of quartz, Fig. 1 (not shown), and the whole shield structure is supported from the metal container wall by insulating bushings 10. The shield and grid may be biassed through a connection 12, Fig. 1. The baffle 15, 17 may consist of an annular and a disc-shaped portion, as shown, or of three annular portions and a disc-shaped portion, Fig. 2 (not shown), so arranged that the grid 11 cannot " see the cathode 2. In Fig. 1 the baffle is insulated and supported by tubular quartz or porcelain members 20. The members 20 carry brackets 22 welded to a framework 23, and fit over pins 21. Sleeves 24 protect the members 20 from sputtered particles. In Fig. 2 (not shown), the baffle insulators and supports are ceramic sleeves and collars carried on metal pins. The walls 1 of the container may be cooled in any suitable manner.
Patent GB-960208-A (GB)
Title: Self-propelled ground vehicle
IPC: B66F9/075
Filed: 1963-04-30
Abstract: 960,208. Air cushion vehicles. CLARK EQUIPMENT CO. April 30, 1963 [May 9, 1962], No. 16907/63. Heading B7K. [Also in Division B8] A vehicle, e.g. a fork-lift truck, has devices for supporting the vehicle body on a surface and for providing an air film between the surface and the devices, and a wheel which is resiliently biased into contact with the surface to provide propulsion and steering. Fig. 3 shows two of the devices 46, each comprising a pad connected to the vehicle body by a universal joint, and supplied at the centre of its undersurface with air under pressure from a plenum chamber 56. Four such devices form the vehicle supports, and the air films give a low coefficient of friction between the vehicle and the ground. The wheel 60 is mounted in a yoke 62 so as to be rotatable about a vertical axis by pinion 86 meshing with spur gear 88 which meshes with a further gear (not shown) connected to a manually operated steering lever on the vehicle. A reversible air motor 74 drives the wheel, being fed from the plenum chamber 56. Air is supplied to the plenum chamber by a centrifugal compressor driven by an I.C. engine. Various load-engaging devices on the vehicle are described (see Division B8).
Patent GB-407688-A (GB)
Title: Improvements in vibration-damping, sound-deadening or shockabsorbing joints or supports
IPC: F16F1/42
Filed: 1932-06-15
Abstract: 407,688. Flexible-unjointed hinges. LORD, H. C., 361, West 5th Street, Erie, Pennsylvania, U.S.A.-(Assignee of Lord, T. ; 361, West 5th Street, Erie, Pennsylvania, U.S.A.) June 15, 1932, No. 16915. Convention date, June 23, 1931. [Class 65 (ii).] A sound - deadening, shock - absorbing, or vibration-reducing joint or support comprises a surrounding plate with an opening therethrough, a central member within the projected area of the opening and a rubber member bonded to a face or both faces of the plate and secured to the central member, preferably by bonding so as to support a load in shear. In one form, Fig. 1, the support comprises a plate 1 with side flanges 2 terminating in feet 3. A central tubular member 4 has bonded to it a rubber member 5 which extends over the edges of an opening 7 of the plate to form rings 8 on opposite faces thereof. In a modification, Fig. 7, a square flat outer member is employed perforated at its corners for securing members. The rubber member 13 has shoulders or rings 15 formed on it to form a stop for the load when undue deformation of the rubber takes place. In a further modification the central member may be in the form of a plate. This form of joint may be used as a support for an electric motor in which the torque impulses of the motor induce the principal vibrations ; arranged as shown in Fig. 10 these vibrations are absorbed by the rubber in shear, and gravity loads in direct stress on the rubber. These supports are formed as claimed in Specification 407,717, [Group XXXII], wherein the plate member 1 is made in lengths having a number of openings 7 and perforated at 35 so that after moulding, the main plate and its feet 3 may be sheared to form a number of supports. After buffing the top and bottom surfaces of the plate, strips of rubber are placed above and below the surface and are perforated for the tubes 6. The plate is then placed in the mould shown in Fig. 2 which has annular parts 33 to shape the rubber and sockets 34 to locate the tubes 6. The Specification as open to inspection under Sect. 91 comprises also a support for a motor wherein rubber is bonded to two plates as shown in Fig. 12 (Cancelled). This subject-matter does not appear in the Specification as accepted.
Patent GB-1310325-A (GB)
Title: Shutter mechanism and camera provided therewith
IPC: G03B9/24
Filed: 1971-05-25
Abstract: 1310325 Photographic shutters HATTORI TOKEITEN KK 25 May 1971 [5 June 1970] 16985/71 Heading G2A A camera shutter mechanism comprises a shutter 6, 6', a governor 7, 9, 10, 11 for controlling the speed of opening of the shutter, a shutter opening control device 18, a driving lever 3 pivotally mounted on an operating lever 2 for opening and closing the shutter, one end 3a of the driving lever engaging the governor and another end 3b having its movement controlled by the shutter opening control device, and resilient means 4 causing the driving lever to rotate. The shutter is shown in the set position. Upon actuation, lever 20 is pivotted clockwise. Switch contacts 22a, 22b are closed to energize the electromagnet 18 to move levers 16, 13 and thus allow escape gear 10 to rotate. Drive lever 3 pivots about axis 2a until a pin 3b thereon engages pawl portion 16c whereupon drive lever 3 pivots about pin 3b and lever 2 is operated to open the shutter. Change-over switch 23 is operated to commence exposure timing by an RC timing circuit, and at the end of the delay period the electromagnet is de-energized so that lever 13 engage escape gear 10 and spring 4 moves the drive lever 3 and operating lever 2 to close the shutter.
Patent GB-709868-A (GB)
Title: Improvements in and relating to self-priming centrifugal pumps
IPC: F04D9/04
Filed: 1952-07-07
Abstract: 709,868. Centrifugal pumps. SIEMEN, O., and HINSCH, J. July 7, 1952, No. 16999/52. Class 110(1) A self-priming centrifugal pump comprises a priming pump with partial admission and connected in parallel with the first centrifugal stage, the further centrifugal stages being arranged behind the first stage and priming pump. Gases in the liquid being pumped accumulate in a space 11 formed at the top of the pump inlet chamber 5, and are drawn off through a channel 8 by means of a priming pump 3 which delivers, in parallel with the first stage impeller 2, to an interstage chamber 6. The gases separate from the liquid in a space 7 and flow through an outlet 9 to atmosphere or to a high point of the discharge pipe where the pressure is at or only slightly above atmospheric. Impeller 2 is made smaller in diameter than the subsequent impellers so that its delivery head matches that of the pump 3.
Patent GB-204121-A (GB)
Title: Apparatus for raising oil, brine, or other liquids from wells
IPC: F04C11/00
Filed: 1922-06-21
Abstract: 204,121. Egersd÷rfer, F. June 21, 1922. Bore-hole apparatus and pro. cesses. - A directly coupled rotary motor and pump are placed at the bottom of a well for raising liquids therefrom and a drill 24 is carried by the motor 6'.
Patent GB-214509-A (GB)
Title: Improvements in or relating to engine-starting devices
Filed: 1923-07-03
Abstract: 214,509. Goodman, K. I., and Goodman, W. R. July 3, 1923. Addition to 167,515, [Class 7 (v), Internal-Combustion engines, Starting &c.]. Lighting systems.-The engine starting and electric lighting system described in the parent Specification comprises a generator 12 driven by an engine started by mechanical means such as a weight 13 or a spring on closing a switch 45 in the load circuit 44. According to the present invention, a switch 140 in the main circuit 43 of the generator 12 is automatically operated by the exciting current of the generator when the latter is fully excited. As shown, the switch 140 is rigidly connected to the switch 63 controlling the circuit of the battery 46 and both are operated by a coil 64 in series with the shunt winding 41 of the generator. The contact 61 is connected directly to the main 43 at 58, instead of through contacts controlled by the switch 53 as described in the parent Specification.
Patent GB-569837-A (GB)
Title: Improvements relating to supercharged internal combustion engines
IPC: F02D9/00
Filed: 1943-10-21
Abstract: 569,837. Air and mixture pumps ; regulating. CROSET, L. P. Oct. 21, 1943, No. 17345. [Classes 7 (ii) and 7 (vi)] In a pressure-charged engine in which a greater weight of air per cycle is introduced into the working cylinder at lower than at higher speeds, the larger proportion of air admitted is also dependent upon and varies with the load and is attained by varying the velocity ratio between the engine and a rotary or other blower. The control lever 7 of a variable-torque fluid coupling disposed between the engine and the blower.is linked to one end of a speed control lever 23 connected intermediately by a link 22 to one end of the rod of a power piston 16 having its other end connected through a resilient coupling 19, 20 to the fuel injection pump control rod 17. The remote end of the lever 23 is pivoted to a manual speed control lever 25 and a link-and-lever system 27 ... 30 connects this lever to the support of a speeder spring 13 associated with a fluid governor 8 driven by the engine cam-shaft 9. Through a rod 14c the upper end 14d of the spring 13 engages a rocking lever 14b operatively connected to a valve 14 actuated by the weights 12 of the governor and controlling the flow of pressure fluid from a passage 36 to one or. other of passages 37, 38 leading to opposite ends of the chamber 15 of the power piston 16 which thus adjusts the fuel supply as the speed varies. The resilient connection 19, 20 permits a stop 34 constituted by the end of a lever 32 connected to the hand control lever 25 to limit the change in' the fuel supply. An increase in load, by checking the speed, causes the governor 8 to operate the valve 14, permitting the pressure fluid to move the piston 15 to the left and increase the fuel supply. The link 22 may be replaced by a toggle linkage, the central pivot of which is displaceable by an aneroid capsule to apply a correction for altitude. In a constant-speed engine, the governor 8 is replaced by a manual adjustment and the lever 23 is pivoted about a fixed point instead of the end of the hand lever 25.
Patent GB-573063-A (GB)
Title: Improvements in gas washers, and benzol, ammonia and like stills
IPC: B01D47/02
Filed: 1943-10-21
Abstract: 573, 0 6 3. Gas washers. MOTTRAM, W. Oct. 21, 1943, No. 17363. [Class 55 (ii)] The gas inlets e to gas washers or benzol, ammonia, &c. stills are surmounted by hoods f with inclined perforated shoulder plates h on opposite sides and perforated plates i extending outwardly into the liquid. A perforated plate assembly comprising a cowl k and inclined plates m, n is also arranged at each side of the hood dome. The washer may consist of superposed chambers, liquid supplied at the top descending through overflow pipes p at opposite corners of successive chambers. Provision may be made for draining tar from some of the lower chambers. An end plate of the hoods may be detachable to enable the head and plate assembly to be removed through an end wall of the chambers.