baber/WOPTO huggingface dataset:
Patent GB-654707-A (GB)
Title: Improvements in or relating to radio aerials for aircraft
Inventor: CARY REX HENRY JOHN
IPC: H01Q1/28
Filed: 1948-07-02
Abstract: 654,707. Aerials; multiplex radio signalling. MINISTER OF SUPPLY. July 2, 1948, No. 17911. [Classes 40 (v) and 40 (vii)] In order to provide a vertically-polarized omni-directional multi-waveband suppressed aerial system for an aircraft having a metallic or metallized fabric skin, the tail fin is formed with a conductive tip portion 2, Fig. 2, separated from the conductive body portion 4 by an insulating member 3, the inner and outer conductors of a coaxial feeder being connected to portions 2 and 4 respectively and the relative dimensions of the two portions being chosen so that when excited in any one of thiee contiguous frequency bands in the H.F. or V.H.F. range, the tip operates alternatively as (1) a near-end feed to the aircraft acting integrally as a radiator, (2) as a near-end feed to the body 4 of the tail fin with the tail plane acting as a counterpoise earth, and (3) as a resonant unipole radiator with the body 4 of the tail fin acting as a counterpoise. In all three modes of operation the effective width to length ratio of the aerial is large and the frequency bands are therefore wide. The aerial system may be operated in the three modes simultaneously by employing three feeders containing appropriate frequency filters, two such feeders being shown in Fig. 2. In a modification, Fig. 3, the conductive tip comprises a number of separate metallic portions 7, 8, 9 and 10 mounted on an insulating plastic support 6, the lowest portion 7 being operable in the three modes described above and each of the other three portions being operable in a different frequency band as a resonant omni-directional unipole with the adjacent lower portion acting as a counterpoise earth. Alternatively, the portions 8, 9 and 10 may be replaced by a small telescopic aerial which may be adjusted for operation in a selected band within a predetermined wider band. A method of feeding a five waveband triple-tip system is shown in Fig. 6 in which the lowest portion 21 is fed by three coaxial feeders 25, 28 and 31 whose outer conductors are connected to the conducting skin of the aircraft at points 25a, 28a and 31a. The upper portion 23 functions as a resonant unipole with the middle portion 22 as its counterpoise, the two portions being connected respectively to the inner and outer conductors of coaxial feeder 35 and the portion 22 also functions as a resonant unipole with portion 21 as its counterpoise, portion 22 being directly connected to the inner conductor of coaxial feeder 33 and a low-impedance path being provided between portion 21 and the outer conductor of feeder 33 by means of a suitable filter in one of feeders 25, 28 or 31.
Patent GB-369099-A (GB)
Title: Means for improving the efficiency of turbine bladings
IPC: F01D5/14
Filed: 1931-06-20
Abstract: 369,099. Turbines. CLARK, G. M., 53, Chancery Lane, London.-(Soc. Rateau ; 40, Rue du ColisÚe, Paris.) June 20, 1931, No. 17923. [Class 110 (iii).] The exit angle A of each fixed blade a increases from root to tip but the exit angle C of each moving blade b remains constant over the same range. This causes an increase in flow towards the blade tips where the optimum internal efficiency is a maximum. The angles of the fixed and moving blades at the roots may be adjusted to secure no reaction there so that there will be equality of pressure on each side of the blade disc at its periphery. Reaction increases with the ratio sin A /sin C. To secure axial discharge of the fluid from the moving blades, a redressing device may be used.
Patent GB-1116412-A (GB)
Title: Flow-ratio controller
Inventor: ATKINSON PETER GEORGE
IPC: G05D11/035
Filed: 1964-04-30
Abstract: 1,116,412. Valves. GAS COUNCIL. 28 June, 1965 [30 April, 1964], No. 17923/64. Heading F2V. [Also in Division G3] Air and gas passages 10, 12, Fig. 1, each include an orifice 11, 13, respectively, whilst a detecting bridge 14, 15 comprising capillary or orifice flow resistors R-R4 is associated with orifices 11, 13 having two pressure tappings 16, 17. The areas of orifices 11, 13 are such that at the required flow ratio the pressure drops thereacross are equal in which case the resistors are of equal value, or in a predetermined ratio n, in which case the relationship between resistors is The pressure tappings 16, 17 may be directly connected to a valve to correct the flow rate through the passages 10, 12; the valve may be of the diaphragm or piston type used in conjunction with three flow resistors and a further source of fluid pressure to provide an amplified output to another pair of connections, the pressure of one of which is constant; the remaining connection may lead to the diaphragm of another valve in one of the passages 10, 12. The diaphragm may be weight loaded if the constant pressure connection is not used; the weight and diaphragm may be replaced by a governed source of constant fluid pressure. The above detecting bridge is applied to the control of the air/gas ratio to an air blast injector of a burner (33, Fig. 4, not shown), the pressure air passage 10 leading from an air valve controlling the burner output to regenerator (35) to preheat the air whilst the gas passage 12 includes a governor the outlet of which is at atmospheric pressure; air orifice 11 is fixed and gas orifice 13 is adjustable. The output of the detecting bridge associated with the orifices 11, 13 is amplified and directed to opposite sides of a diaphragm (38) controlling a tapered plunger regulating the effective area of the air inlet to the injector. After the bridge has been balanced the air/gas ratio can be pre-set by adjusting the throughput and orifice 13. The resistor R4 discharges to atmosphere to compensate for the bridge arm 14 and a further adjustable resistor (R5) is disposed in parallel therewith to compensate for leakage (37) from the valve connected to the tappings 16, 17 so enabling the bridge to be balanced.
Patent GB-1393218-A (GB)
Title: Anthraquinone dyestuffs
IPC: C09B1/514
Filed: 1973-04-13
Abstract: 1393218 Anthraquinone dyestuffs MITSUBISHI CHEMICAL INDUSTRIES Ltd 13 April 1973 [15 April 1972 (3)] 17936/73 Heading C4P The invention comprises anthraquinone dyestuffs of the general formula wherein X and Y are halogen, Z is H, halogen or a methyl group vicinal to an hydroxy group in the anthraquinone nucleus one V is an hydroxy group and the other an amino group, m is 0-3; and n is 2-3 when Z is H and is 0-3 when Z is methyl or halogen. They are prepared by reducing the corresponding nitroanthraquinone compounds or by halogenating the corresponding 2 - methyl - dihydroxy - monoamino - monoanilino anthraquinone. The invention further comprises the partially reduced reaction product containing the starting material and final product in the weight ratio 20 : 80 to 80 : 20. The dyes give blue-green shades on polyester and cellulose ester fibres.
Patent GB-407982-A (GB)
Title: Improvements in and relating to spraying and grouting machines for distributing hot and cold tar and other liquids and emulsions on road and other surfaces
IPC: E01C19/17
Filed: 1932-06-24
Abstract: 407,982. Jib cranes. NEWTON, C. M., Church Road, Hennock, Newton Abbot, Devon. June 24, 1932, No. 17941. [Class 78 (iv).] A davit-jib crane 8 arranged at the front of a tar-spraying vehicle raises the tar barrels on to roller supports 6 for feeding the tar tank through a strainer 7. The cable 9 of the crane passes through the crane pillar and is coiled round a vertically-disposed winch drum rotated by hand through worm gearing.
Patent GB-298262-A (GB)
Title: Improvements relating to oil storage tanks
IPC: B65D88/36
Filed: 1927-07-06
Abstract: 298,262. Afonin, I. R. July 6, 1927. Tanks.-Flexibly connected cells forming a floating cover, as in Specification 263,020, are each provided with inclined sides A<1>, A<2> adapted to slide on the similarly inclined sides of adjacent cells, the outer walls of the peripheral cells being rounded so as to slide easily on the walls of the tank. Containers for rain or other water may be provided on the cells, and gas chambers below them.
Patent GB-1182512-A (GB)
Title: Method and Device for the Recording of Alphanumeric Characters in Accounting or like Machines
Inventor: KOHLER HELLFRIED
IPC: G06C11/04
Filed: 1967-04-19
Abstract: 1,182,512. Selective printing. BUCHUNGSMASCHINENWERK KARL-MARX-STADT. 19 April, 1967, No. 18017/67. Heading B6F. A printer for recording alphanumeric characters on a record on an axially fixed platen 3 has a type-carriage movable along a printing line and which carries two sets of type, the first set comprises a number of type-carriers 9 which can print a number of characters together (referred to as parallel printing) and a second set of type 10 on a type-wheel which prints one character at a time (referred to as series printing) along a limit line distance a for each tabulation position of the type-carriage. The carriage may be moved into various tabulation positions A, D determined by a carriage lever 16 and column stops 18 on a tabulation strip rack 17. The carriage 4 is axially displaced on a grinding screw shaft 5 and the type-wheel 10 is selectively rotated by a knee-joint mechanism carrying intermediate gears and which allows the type wheel 10 to be letter-spaced relative to the carriage. If further letter-spacing is required the carriage is moved to the next tabulation stop 18.
Patent GB-827246-A (GB)
Title: Improvements in or relating to methods of closing and sealing containers and closureand sealing means
IPC: B65B7/28
Filed: 1957-06-07
Abstract: 827,246. Packaging ; closuring containers. STERNAU, M. M., and HOFMANN, P. R. June 7, 1957 [June 15, 1956 ; March 14, 1957 ; April 16, 1957], No. 18169/57. Classes 94(1), 125(2) and 125(3). In a method of closuring a container or receptacle a plastic heat-shrinkable member is placed on the mouth of the container with a rim area extending around a rim of the container and the rim area is heated to shrink the plastic member onto the container rim. The container 9 may have a beaded rim and the cover member have an inner film 5 of plastic and an outer layer 1 of mouldable material such as aluminium, paper or plastic or the cover 8 may be dished, Fig. 6. The cover  may be applied as a sheet, Fig. 7, and crimped on before heat is applied. In another modification, Fig. 9, a one part closure 5 is applied having secured thereto an opening string 13 and in a further modification cement, wax or other bonding medium is applied at various spots. The closures are applied by a capping tool 21, Fig. 11, having a suction line 22 to enable the cover to be picked up and passages 23a through which heat can be applied to the closure rim area by hot air, hot water, steam, electricity or open flame. An alternative tool 23, Fig. 12, has passages 25 and suction lines 24, the tool 21, 23 being of asbestos, hand rubber or the like either entirely or only in the neighbourhood of the heat passageways. In a modified method, Fig. 15, a roll 36 of outer material 35 and a roll 34 of transparent shrinkable film 33 are positioned over a container 32 and shears 37 cut both layers of the material in cooperation with a heat sealing and crimping device as for example as shown in Fig. 11.
Patent GB-1495897-A (GB)
Title: Spray gun apparatus
IPC: B05B15/00
Filed: 1976-05-04
Abstract: 1495897 Spray . producers GRACO INC 4 May 1976 [19 May 1975 18187/76 Heading B2F A spray gun, e.g. for paint comprises a valve, an actuating arm 22 connected to the valve and abutting a trigger 14, the trigger, in operation causing movement of the arm 22 and the opening of the valve to allow paint to pass, and a shield 26, pivotally mounted with respect to the rest of the gun, and being mounted about a spray tip 28 in a guard position. The shield has a cam surface 30 which contacts the arm 22 and on movement of the shield out of the guard position the surface 30 causes arm 22 to move out of abutment with the trigger 14 and thus causes closing of the valve. The trigger may be mounted on the same pivot pin 20 as the shield and has a notch 21, which receives a part of the arm 22. The trigger may extend across the width of the gun, be mounted on the other end of pin 20, and have a second notch 21 cooperating with a part of arm 22. The arm is pivotally mounted at pin 25, fitted to a valve actuating rod, and is U-shaped to cooperate with both sides of the trigger. The shield is U-shaped, can pivot upwards, as in Figure 1, for the replacement or cleaning of the spray tip, and in moving causes arm 22 to be moved out of notch 21. In other embodiments the shape of the arm 22 and notch 21 are altered and the distance of the end of the arm in notch 21 to the pin 25 is changed in order to alter the ease with which lifting of the shield will close the valve. The arm 22 may be spring-biased to a position out of the notch 21.
Patent GB-1382479-A (GB)
Title: Workpiece transfer mechanisms
IPC: B65G29/00
Filed: 1972-04-19
Abstract: 1382479 Drying cans OMF CALIFORNIA Inc 19 April 1972 [23 April 1971] 18204/72 Heading F4G [Also in Division B8]  As open-ended cans 52<SP>1</SP> are being carried round on a conveyer disc 38<SP>1</SP> (against which they are retained by suction), they are carried through a series of drying stations, at each of which a continuous or intermittent blast of high pressure drying air is discharged into the container. The jet is controlled by a circuit 98 activated by an optical scanner 100 and light source 102. The cans are carried to the disc 38<SP>1</SP> by a pusher conveyer (see Division B8).
Patent GB-971302-A (GB)
Title: Improvements in or relating to electrical switching arrangements
Inventor: DUCKITT HARRY
IPC: H03K17/80
Filed: 1960-05-24
Abstract: 971,302. Magnetic amplifiers. WESTING- HOUSE BRAKE & SIGNAL CO. Ltd. May 24, 1961 [May 24, 1960], No. 18231/60. Heading H3B. An electrical switching arrangement comprises a transductor having two high permeability magnetizable cores, and A.C. and D.C. windings arranged so that a D.C. signal opens the transmission path of an A.C. signal through the arrangement, in which the A.C. winding comprises a relatively small number of spaced turns, and the D.C. winding comprises a relatively large number of turns, the A.C. and D.C. windings being spaced from each other. Two toroidal cores 1, 2 are provided with D.C. windings 3, 4 in series, and A.C. windings 5, 6 in series opposition, and the presence of a predetermined D.C. in windings 3, 4 allows A.C. to flow through load 12. Windings 3, 4 may be replaced by a single coil threading both cores and consisting of 400 turns of 36 S.W.G. wire on a bobbin, each A.C. winding comprising twelve turns of wire made up of nineteen strands of 36 S.W.G. wire covered with P.T.F.E. A railway signalling circuit is described which provides different outputs when the D.C. input is " on " and " off " (Fig. 6). The A.C. windings of a switching arrangement, 31, are connected to the primary winding 36 of a matching transformer 35, the secondary winding of which is connected through rectifiers 38, 39 and a centretap to output terminals 40, 41. An output is produced whenever a predetermined D.C. is present in winding 34. A further transductor arrangement 42 is provided which consists of two similar halves each including a D.C. winding 43, 44, an A.C. winding 45, 46, and a further winding 47, 48 connected through rectifiers 50, 51 to output terminals 52, 53. With no D.C. in windings 43, 44 a D.C. output is produced at 52, 53 by transformer action, and this output is reduced by increasing the D.C. input. A variable resistor 58 changes the gain of arrangement 42, relative to that of arrangement 35. The " off " output circuit consisting of transductor 42 may be omitted if a single output is required. A time delay is provided by the arrangement in Fig. 9, in which A.C. is applied to a matching transformer 71 and the output is half-wave rectified to give A.C. fundamental and ripple components superimposed on a steady D.C. The A.C. is passed by transformer 61 for rectification at 67 to give a D.C. control current for gate arrangement 68. On disconnection of the A.C. source from terminals 69, 70 the inductive windings 65, 66 cause the D.C. component to decay exponentially, thus delaying the operation of gate 68. A proving device in the form of a transductor 60 is provided to indicate correct operation of the D.C. circuits prior to it. All the circuits are stated to be fail-safe.
Patent GB-206550-A (GB)
Title: Improvements in refrigerating fish and other food substances
IPC: A23B4/06
Filed: 1922-07-03
Abstract: 206,550. Petersen, P. W. July 3, 1922. Cooling fish and meat.-The fish or cuts of meat are packed tightly and in regular .and close formation in a deep narrow container 1 so as to minimize air pockets, and the container is then immersed in a refrigerating liquid maintained out of contact with the fish and sufficiently cold to effact rapid freezing before appreciable loss of moisture by evaporation occurs. The fish may be packed in an open scoop-shaped form 8, covered by an enclosing lid, and then inserted through the open top 6 of the container. The container is constructed as a three-walled vessel with its sides converging from the open end. The pan 8 is drained by perforations 10 and 'by a false bottom 11 perforated at 12. In the cooling operation, the containers are inserted, in a chamber 4 to rest on a false bottom 5 and are spaced by partitions 7. The cooling-liquid level A is. positioned above the level B of the tops of the pans 8 but below the level of the upper edges of the containers. A number of cans 1 may be arranged in a rack for immersion in the cooling liquid.
Patent GB-161479-A (GB)
Title: Improvements relating to stands for supporting sheets for loose leaf binders
IPC: B42F17/02
Filed: 1920-07-02
Abstract: 161,479. Cox, C. H. S., and Jones, P. H. July 2, 1920. Stands.-A support for loose leaves temporarily removed from a binder comprises a base f to which are attached inclined side members a and a curved bottom member b, which may be lined with velvet or other soft material and is preferably provided with a transverse rib b for engaging in slots in the leaves e to keep them aligned. A back member h may be provided.
Patent GB-330771-A (GB)
Title: Improvements in or relating to wearing apparel
IPC: A41F9/02
Filed: 1929-06-15
Abstract: 330,771. Ash, S. June 15, 1929. Trousers; knickerbockers; straps and bands. - Relates to wearing apparel wherein pieces of elastic material extend across folds, pleats, gussets, or slits in the waist-band or knee band to permit expansion and contraction, and consists in constructions wherein the elastic material is sewn at one end to the band at or near the centre of the back thereof and detachably secured at the other end at the side of the band. At each side of the trousers waist-band, a length of elastic material 1 is sewn at one end 4 at or near the centre of the back and concealed for most of its length, emerging through a slit near the first of a series of buttons 6. At the free end of the strip 1 a buttonhole is provided, to take over one of the buttons. A similar construction is applied to the knee band of " plus fours."
Patent GB-646148-A (GB)
Title: Improvements in or relating to dust arrestors
IPC: B01D47/02
Filed: 1947-07-11
Abstract: 646,148. Washing gases. AMERICAN AIR FILTER CO., Inc. July 11, 1947, No. 18461. Convention date, June 5, 1943. Addition to 646,147. [Class 55(ii)] To enable dust arrestor devices according to the parent Specification to operate efficiently when air flows are other than normal, they are provided with a liquid level control means for maintaining the liquid in the suction side of the bath at a predetermined high level during air flows varying within the operating range, while permitting the low liquid level to vary, the control means causing the volume of liquid swept through the baffle zone to increase and then decrease as the air flow increases through the said range. In the form shown, the control means consists of a box 10 divided into three vertical chambers, a low level chamber 11 communicating with bath 3 and open to atmosphere, a high level chamber 12 communicating with bath 3 through chamber 11 and closed at the top. the top air space being connected by a pipe 19 to the outlet air space 6 of the arrestor so that the liquid level in chamber 12 corresponds to the high level in bath 3. These levels are controlled by a weir 17 across which excess liquid can flow to the third chamber, which is divided into an overflow compartment 13 connected by a sealed standpipe 20 to a drainage chamber 14. When the plant is started up a solenoid valve opens to allow a small continuous flow of make up water to enter chamber 12 through pipe 27. With normal air flow, part of this water passes to tank 3 to make up evaporation loss and part escapes over weir 17. To compensate for air flows above or below normal, which would cause flooding or starving of the baffle zone of water, the low level of the tank is permitted to alter to render available less or more water for passage through the zone, whilst the high level is held constant.
Patent GB-316092-A (GB)
Title: A new or improved back-rest or cushion for a seat or chair back
IPC: A47C7/42
Filed: 1928-05-11
Abstract: 316,092. Garrett, T. H. May 11, 1928. Divided on 315,456. Cushions, securing in position.-In a chair of the kind having a slidably adjustable backrest cushion 2, the marginal projections 4 are slidably engagable with opposed flexible pockets formed upon the upholstery of the chair back by the provision of pleats or strips 5.
Patent GB-569238-A (GB)
Title: An improved mounting for an electric hot plate or like unit relative to its terminalconnections, particularly applicable to electric ovens or other cooking apparatus
IPC: F24C15/10
Filed: 1943-11-08
Abstract: 569,238. Electric hot plates. REVO ELECTRIC CO., Ltd., and REEVES, F. H. Nov. 8, 1943, No. 18495. [Class 39 (iii)] An electric hot plate a is mounted on a cradle b which is secured to the framework of a cooker or oven. The leads from the hot plate pass through a slot bl to a trough c secured to the cradle b by a bolt d. A hollow member formed of upper and lower sections e, el is adjustably secured on the trough c by a pair of screws f so that the distance between the terminal block g and the centre of the hot plate may be varied as required.
Patent GB-292785-A (GB)
Title: An improved timing device
IPC: G04C21/22
Filed: 1927-07-12
Abstract: 292,785. Seear, A. H. June 12, 1927. Clockwork - a c t u a te d valves.-Relates to timing devices in which a weight is released by the movement of an alarm spindle, the clock being mounted on a turntable so that when not controlling timing operation it may be turned to allow its face to be read conveniently. As shown in Fig. 2 a weight 8 for operating a valve or electric switch is hung by a card on the projecting end of a pin 7 held horizontally in a fixed spring clip 6. The pin 7 terminates in an eye connected by a card to the alarum arbor or finger-piece therefor so that on release the card is wound round the arbor and the pin drawn through the clip, so stripping off the weight which falls and performs the desired operation. The clock 3 is mounted on a turntable 2 supported by a wall bracket so that it may be turned from its normally operative position to bring the dial into a convenient, position.