baber/WOPTO huggingface dataset:
Patent GB-733174-A (GB)
Title: Improvements in or relating to thermionic valve circuits for amplifying television or like signals
IPC: H04N5/08
Filed: 1952-07-17
Abstract: 733,174. Television. GENERAL ELECTRIC CO., Ltd., ELLIOT, E. W., and GRIFFITH, G. W. S. Oct. 14, 1953 [July 17, 1952], No. 18118/52. Class 40 (3). [Also in Group XL (c)] A circuit arrangement for separating synchronizing signals from a composite television signal comprises a pentode valve to the control grid-cathode circuit of which the composite signal is applied with negatively-going synchronizing components, the suppressor-grid being so biased that synchronizing signals alone are developed across a load impedance in the anode circuit whilst the composite signal as a whole is developed across a load impedance in the screen-grid circuit and across a load impedance in the cathode circuit. As shown in Fig. 2, the composite television signal is applied, via terminals 2, to the grid-cathode circuit of valve 1, the suppressor-grid of which is so biased by potentiometer 13 that anode current flows only during the occurrence of the (negatively-going) synchronizing signals which are developed across the anode load impedance 10, 11 and 12. During the occurrence of the picture and the synchronizing signals, however, cathode current flows via the screen-grid and the amplified signal developed across load impedance 4, 5 may be supplied to the cathode of the picture reproducing tube whilst the signal developed across cathode impedance 9 may be supplied to the modulator grid 'of this tube. Specification 711,072 is referred to.
Patent GB-765697-A (GB)
Title: Improvements relating to operating mechanism for electric circuit breakers
Inventor: POLLARD ARCHIBALD HAYWARD
IPC: H01H75/04
Filed: 1954-06-21
Abstract: 765,697. Automatic circuit breakers. BRITISH THOMSON-HOUSTON CO., Ltd. June 20, 1955 [June 21, 1954], No. 18164/54. Class 38(5) A circuit-breaker of the type closed by energy stored in a spring 3 or other energy :storage device acting on a lever 1 which may be held in the " charged " position by a closing latch 12, is provided with autoreclosing means for transient overloads comprising an additional latch 21 which holds the lever 1 charged in the auto reclosing position as shown in the Figure. Lever 1 is connected through a telescopic link 6 to the trip free breaker mechanism 4 and provided with a motor 10 which is which is operated by a cam switch 16 to the lever 1 and thus charge spring 3. The latch 12 is disengaged from the lever 1 when switch 16 energizes a solenoid 14 after the switch has operated to shut off the motor, the breaker being then closed by spring 3 and held closed by a latch 8. The spring 3 is then re-charged by the motor, the cam switch 16 causing the energizing of a solenoid 23 during the re-charging so that latch 21 engages lever 1 and holds it in readiness for an auto-reclosing operation. On a transient overload, a trip coil 20 becomes energized and. the breaker starts to trip, the lever 1 rotating anticlockwise to the position shown in dotted lines where, the spring 22 biases latch 21 out of engagement with lever 1 so that the lever can reverse direction and rotate clockwise to re-close the breaker under the influence of spring 3. If the fault persists, the normal trip mechanism 7 will act to open the breaker permanently. A hydraulic ram may replace motor and a torsion bar mechanism (the bar consisting of flat strips) the spring. The latch 12 may alternatively be released by an air piston and cylinder.
Patent GB-557058-A (GB)
Title: Machine for cutting a metal tubular member into rings
IPC: B23B5/00
Filed: 1942-12-22
Abstract: 557,058. Making rings. WELLWORTHY PISTON RINGS, Ltd., and HOWLETT, J. W. Dec. 22, 1942, No. 18174. [Class 83 (iii)] [Also in Group XXIII] Washers and piston and other rings are cut from pots or tubular members by a gang of circular cutters mounted on a spindle, the pots being mounted on a parallel spindle carried by a headstock fed by a lead screw and nut. The work spindle 17 has an outboard bearing carried by an arm 21 on a bar 23 fitted with clamps 28. A handle 26 rotates a pinion meshing with a part circular rack on the bar 23 and a pin 30 engages a cam groove 31, 32 so that the arm is first withdrawn axially from the spindle and then swung upwardly through about 60 degrees to facilitate application and removal of the work. As the headstock slide 12 moves away from the cutters 13 after completing the cut a limit switch is operated to stop the rotation of the cutter spindle. The spindle 17 may be driven as described in Specifications 557,057 and 557,059.
Patent GB-583178-A (GB)
Title: Improvements in or relating to the polymerisation and interpolymerisation of ethylene
IPC: C08F10/00
Filed: 1943-11-03
Abstract: Ethylene is polymerized by subjecting it to an elevated temperature and pressure in the presence of an ether containing up to 10 carbon atoms and up to 500 parts per million by volume of oxygen or a substance capable of producing oxygen.  Diethyl ether in amounts of between 0.05 and 1 per cent by volume is preferred. The ether may be present as an impurity in the ethylene or may be added, e.g. by circulating the ethylene over liquid ether at a controlled temperature.  Benzoyl peroxide or ammonium persulphate may be used in place of oxygen.  Interpolymers may be formed with other mono-olefines, di-olefines, vinyl and vinylidene esters, unsaturated acids and their esters and anhydrides, carbon monoxide as described in Specification 583,172 and formaldehyde as described in Specification 583,173.  The process may be carried out continuously. Specifications 471,590, 497,643 and 8070/40, as open to inspection under Sect. 91, also are referred to.
Patent GB-459831-A (GB)
Title: Improvements in or relating to the treatment of mixed textile materials
IPC: D06M11/38
Filed: 1936-07-01
Abstract: Textile materials containing filaments or fibres of organic esters of cellulose in admixture with wool or other animal fibres, are treated in an alkaline bath of such concentration, and under such conditions that the cellulose ester filaments or fibres are at least partially saponified during the treatment, and the animal fibres are substantially unaffected.  The process is applicable to the treatment of mixed yarns or of fabrics formed from yarns of organic ester of cellulose and yarns of animal fibres.  In the case of a mixed yarn or fabric containing cellulose acetate fibres and wool fibres, the preferred conditions for carrying out the process fall within the limits of a 2 per cent caustic soda solution for 10 minutes at 10 DEG C. and a 6 per cent caustic soda solution for 3 minutes at 20 DEG  C. Within the range of conditions the wool is visibly unaffected and the cellulose acetate is saponified sufficiently to be dyed with direct cotton dyestuffs.  In an example, a fabric containing yarns consisting of a mixture of cellulose acetate and wool is immersed in an aqueous solution containing 4 per cent of sodium hydroxide for 7 mins. at 5 DEG  C.  The resultant fabric may be dyed to an even shade with a direct cotton dyestuff. p
Patent GB-495214-A (GB)
Title: Improvements in or relating to metal extrusion machines
IPC: B21C23/30
Filed: 1937-06-30
Abstract: 495,214. Squirting. CALLENDER'S CABLE & CONSTRUCTION CO., Ltd., and GRIEVE, G. T. W. June 30, 1937, No. 18206. [Class 83 (iv)] In order to avoid distortion of the casing of a metal extrusion machine in which the casing houses or forms part of a rotating screw thread impelling device, the parts of the casing that are subjected to the thrust loads exerted by the plastic metal are symmetrical about the axis of the impelling device and preferably also symmetrical in section in any plane containing the said axis. The impelling device of the machine shown in Fig. 1 comprises a tubular member 1 rotatable between a cylindrical part 2a of the casing 2 and an inner stationary member 8 and is formed with outer and inner helical projections 3, 3a co-operating with longitudinal projections 4, 4a on the fixed parts such as is described in Specification 430,006. The wall of the machine is formed with an inwardly extending flange 11 in front of the driving wheel 12 of the rotary member 1 and the direct thrust on the member 1 due to the plastic metal is transferred to the flange 11 through a collar 15, flange 14 and a ball thrust bearing 13. The inner member 8 is loosely splined at 24 to the rear wall 16 of the casing to prevent its rotation. To the rear face of the driving wheel 12 is secured a tubular member 17 and the longitudinal thrust on the member 8 is transferred through a collar 21, ball thrust bearing 19 tubular member 17, wheel À12 and a collar 23 to the rear end of the member 1 and thence to the flange 11. That part of the casing subjected to the thrust loads, that is the part between the flange 11 and the front wall is made of circular cross-section to prevent asymmetrical distortion. To prevent also asymmetrical distortion due to unequal temperature, the form of machine shown in Fig. 3, may be used. Here the driving wheel 12 is replaced by a flanged collar 31, the rear end wall 16 of the casing is omitted and the drive is applied to the inwardly extending flange 20 of the member 17 by means of pins 40 projecting from a driving wheel 35 mounted in a casing 36. Rotation of the extrusion machine casing 2 is prevented by dogs 43 engaging with corresponding dogs on the casing 36. Heat insulating material is inserted between the dogs and between the wheel 35 and pins 40. The casing 2 is supported on cradles 33 from which it is heat insulated. Where the invention is applied to a machine having an impelling device comprising a stationary inner member 51, Fig. 7, and a rotary outer member 52 such as is described in Specification 394,441 symmetry is obtained by driving the wheel 54 at two diametrically opposite points by gear wheels 73 each mounted in a pocket 72 at the periphery of the casing 56. Each wheel 73 is driven by a shaft 74 through a flexible coupling 76 from a gear box 92 located clear of the machine casing which is supported by feet which extend one from the wall of each pocket 72 so that the casing is symmetrical about a horizontal plane through the axis of the impelling device.
Patent GB-531476-A (GB)
Title: Improvements in or relating to trench revetments, tunnel linings or the like
IPC: E04H9/12
Filed: 1939-06-22
Abstract: 531,476. Sectional building structures. RUSSELL, A. G. June 22, 1939, No. 18213. [Class 20 (i)] [Also in Group XXI] Building structures, such as trench revetments, tunnel linings and conduit, sewer or other chambers above or below ground, have a framework built up of interchangeable reinforced concrete uprights, and interchangeable reinforced concrete horizontal members with a readily detachable connection.to the uprights, and interchangeable concrete slabs inserted edge to edge between the frame members with an overlapping connection with one another and with said frame members to form walls and a floor or roof or both, each of the parts being such as to be capable of erection manually. In a trench lining, uprights 10 are stepped .in the ends of floor stretchers 11 which either have rebates on their upper edges to support a floor of concrete slabs, or have on their sides grooves 12 in which a floor of concrete cast in situ may key; the uprights are similarly connected to roof beams 18, the connection preferably comprising shoulders 16 on the ends of the uprights connected by inclined faces to tongues 17, these parts engaging corresponding sockets 13 in the stretches and roof beams. Spacer bars 20 may be placed between successive stretches and have tongue and groove joints therewith. The sides of the uprights have grooves 15 to receive the ends of reinforced concrete wall slabs 24 the adjacent edges of which are rebated to give an overlapping joint ; continuation grooves 15<SP>1</SP> are provided in the roof beams, and the roof is formed of similar slabs supported on rebates in the roof beams. At the ends of a trench, intermediate uprights 10 may be provided. At a junction, angle posts 29, Figs. 2 and 3 with tongues 30 on adjacent faces, may be provided to connect two uprights, and be cunnected by modified stretches 112 and roof beams 182, or a corner post 27, Fig. 7, with grooves on adjacent faces, may replace one upright. An exit is provided by open ended box structures 31 connected by tongues and rebates and provided with a cover. Joints are sealed with bitumastic composition &c. In a modification, the walls and roof may be double, the uprights and roof beams having parallel grooves to correspond and the cavities being filled with rubble, concrete &c. Earth may be piled above the roof and a drain provided beneath the floor. Specification 520,399, [Group XXI], is referred to.
Patent GB-1248624-A (GB)
Title: An agent for the determination of aldoses
IPC: G01N33/66
Filed: 1969-04-09
Abstract: 1,248,624. Determination of aldoses. MERCK PATENT G.m.b.H. 9 April, 1969 [2 May, 1968], No. 18227/69. Heading B1X. An agent for determination of aldoses, especially glucose, galactose or xylose, in body fluids, comprises an o-substituted o<SP>1</SP> unsubstituted mononuclear aromatic amine and at least one compound selected from hydroxyl group-containing mono-, di- and tri-carboxylic acids, and optionally one or more of water, thiourea, glacial acetic acid and solubilising agents. Amines exemplified are o-toluidine, 2- ethyl-aniline, 2n or 2-iso propylaniline, 2-n or 2-iso or 2-tert butyl aniline, 2, 3-dimethyl or diethyl aniline, 2,4-dimethy] or -diethyl aniline, 2,5-dimethyl- or diethyl aniline. Acids exemplified are lactic, malic, glycollic; also mentioned are gluconic, mannonic, tartaric acids. Optional solubilising agents are alcohols or polyols, b.pt at least 90C, monoalkyl glycol ethers, or mixtures of these; examples are given. Blood samples to be tested may be deproteinized before test using trichloroacetic acid, perchloric acid or uranyl acetate. In determining galactose or xylose, any glucose present is first oxidised with glucose oxidase. In carrying out the determination, the sample is treated with a solution of the agent and the extinction of the resulting solution is measured.
Patent GB-543952-A (GB)
Title: Improvements in washing machines
IPC: D06F13/00
Filed: 1940-12-30
Abstract: 543,952. Washing and drying machines. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 30, 1940, No. 18229. Convention date, Dec. 29, 1939. [Class 138 (ii)] A combined washing and centrifugal drying machine has, fitted outside the receptacle 10 channels 20 communicating by apertures 21 with the interior of the receptacle or alternatively as shown on the right of Fig. 1, by apertures 21 and 22. The upper ends of the channels define the depth of the liquid in the receptacle which has walls flared as shown and is provided above them with apertures 12 to discharge the liquid in centrifugal drying. The apertures 22 remove heavy matter such as sand and prevent it settling on the clothes during drying. The overflow liquid is returned by a pump 17 from the floor 4 of the casing on to a filter ring 14 surrounding the flared opening 16 giving access to the receptacle. The selectively oscillated and rotated shaft 6 passes from the driving mechanism 7 below the floor of the casing through a sleeve 5, water-tightly jointed at 8, having a self-aligning bearing 9 at the top, through a sleeve bearing 25 secured to hub 24 of the receptacle, through a combined sleeve and thrust bearing at the upper end of the receptacle hub and is splined in a drive nut 26, Fig. 3, for the agitator 27 which has a recess 29 at the upper end of its perforated hub 28 to take the nut. The nut is apertured at 35 to allow rinsing water from a supply 33 to pass and flow through the apertures 36 of the hub during drying. A trough 37 is provided in the casing to catch the rinsing water thrown off through the apertures 12 so that it may be led off through a valve 37a to a waste pipe 37c and avoid diluting the washing solution. In a modification, the receptacle has no apertures 12 and is of the form shown at 38, Fig. 4, so that both washing liquid and rinsing liquid is discharged through openings 39 and channels 40.
Patent GB-829117-A (GB)
Title: Improvements in or relating to illumination devices
IPC: G09F13/20
Filed: 1956-06-13
Abstract: 829,117. Electroluminescence. GENERAL MOTORS CORPORATION. June 13, 1956 [June 27, 1955], No. 18255/56. Class 39(1). [Also in Group XIX]. An indicator, particularly for use in advertising signs and instruments such as speedometers for motor vehicles, comprises a layer 12 of conductive transparent material, such as tin chloride, numerals or other indicia 14 of electro-luminescent material, a layer of insulating material 16 such as non-conductive paint, a layer of conductive material 18 which may or may not be transparent such as aluminium, and means for applying a potential difference between the leads 20, 22 to the layers 18 and 16. The indicia 14 can be printed, sprayed or stencilled on the layer 12 or on the layer 16. A transparent layer of glass or of a plastic 10 can be positioned in front of the layer 12. In the construction, shown in Fig. 4, the layer 18 is of opaque aluminium and is followed by a layer 24 of electro-luminescent material, a layer 26 of transparent conductive material, such as tin chloride, and a transparent layer 28 of glass or of a plastic, the lead 22 being connected by line 30 to the layer 26, to provide rear illumination. Openings can be cut in the layers 16 and 18 in order to view the pointer 6 from the rear.
Patent GB-731614-A (GB)
Title: Improvements in or relating to thermionic cathodes
IPC: H01J1/28
Filed: 1952-07-18
Abstract: 731,614. Thermionic cathode constructions. GENERAL ELECTRIC CO., Ltd., and ALDOUS, W. H. Oct. 9, 1953 [July 18, 1952], No. 18275/52. Class 39 (1). A " dispenser cathode has a porous sintered metallic emittmg surface which forms part of the walls of a container in which alkaline earth compounds are disposed and at least two sepa-. rate heaters are provided, at least one of which is arranged to heat primarily the emitting surface, and at least one of which is arranged to heat primarily the supply of alkaline earth compounds. Molybdenum cylinder 1 is closed at the top by a porous tungsten plate 2 beneath which is disposed heater 6. Molybdenum cup 4 is surrounded by heater 7, is secured to base plate 3 and contains a block 5 of barium strontium carbonate. This construction enables a large supply of emitting material to be incorporated without excessive heating. The heaters may be operated at different temperatures. The cathode may be used in discharge devices other than thermionic valves, e.g. cathode-ray tubes. Specification 731,613 is referred to.
Patent GB-475202-A (GB)
Title: Improvements in and relating to diaphragm pumps
IPC: F04B43/02
Filed: 1936-07-01
Abstract: 475,202. Diaphragm pumps. MORRIS, A. G., and RIGGS, T. C. July 1, 1936, No. 18299. [Class 102 (i)] In a diaphragm pump a body 12, supported of ledges 11 in a casing 10, is formed with inlet and discharge passages 13, 14, and has a circular flange 18 to which the diaphragm 20 is secured by means of a band 21. The valves 16, 17 are of rubber, of the type having two or three flaps. The diaphragm is clamped by means of a nut 25 to a plate 27, to which the connecting-rod 28 is pivoted. The connecting rod may be operated by an eccentric or by a crank 31 secured on the end of the driving- shaft 33 by a pin 34. The air bottle 37 may be of flat circular form, as shown, or an inclined cylinder may be employed. In a modification the diaphragm is formed with a peripheral groove which engages the flange 18, and the connecting-rod 28 is rigidly secured to the diaphragm.
Patent GB-584963-A (GB)
Title: An improved sheet metal door
IPC: E06B3/72
Filed: 1944-09-26
Abstract: 584,963. Doors. PRESSED STEEL CO., Ltd., LONGMAN, C. W., and NICHOLS, W. A. Sept. 26, 1944, No. 18331. [Class 20 (iii)] A sheet metal door comprises a frame formed of flanged channel section frame members 11 and outwardly extending plates 17 secured, e.g., by welding to the flanges and also to the margins 15 of the door panel 14 so as not to interrupt the outer surface thereof. The panel may be connected to the frame along two opposite margins only and the hinges and lock mechanism may be secured directly to the frame.
Patent GB-381159-A (GB)
Title: Improvements in winding or absorbing devices for cables, cords and the like
IPC: F21V27/00
Filed: 1931-06-25
Abstract: 381,159. Spring drum device for taking up cable slack. STURGE, W. H., Premier Works, Sheepcote Street. Birming- ham. June 25, 1931, Nos. 18335 and 20885. [Class 36.] In a portable electric lamp standard having a spring-controlled drum disposed in the base of the standard for automatically taking up slack in the current-supply leads to the lamp, the leads pass from the lamp down the standard and through the centre of the drum around which' they are coiled by the action of the spring. In the construction shown, the drum, which is rotatably mounted on a fixed hollow spindle 11 carried by an attachment bar 13 secured to the underside of the base 1 of a lamp standard 2, is formed by circular discs 3, 4 attached to the opposite faces of a smaller annular disc 5, inside which is disposed a flat spiral spring 7. The outer end of the spring 7 is attached to a depending pin 8 carried by a metal plate 12 covering an opening in and secured to the upper disc 3 of the drum, whilst the inner end of the spring is anchored in a cut-away portion 9 of a flanged disc 10 secured on the lower end of the spindle 11. The flex 6 from the lamp is taken down the hollow standard 2 and spindle 11, which may have an insulating bush 15, through a bushed central hole 17 in the lower disc 4 of the drum, and after being passed up through a bushed hole 18 in the disc 4 and preferably through slots 19, 20 in the disc 5, disposed as shown in Fig. 2, the flex is finally wound around the periphery of the disc 5. The free end of the flex, to which electrical connection is made, is passed through a guide-hole 21 in a guide-block 22 which is carried by a narrow metal plate 23 adjustably mounted on the attachment bar 13. To relieve the unwound portion of the flex from tension when the lamp is in use, the flex may be clamped against the guide-block 22 by a spring-controlled roller 24 pivoted to the guide-block and extending in its clamping position across the mouth of the guide-hole 21. To enable the roller 24, which may either be mounted on spring-controlled links or directly on springs 25, to be held in an inoperative position, the underside of the guide-block 22 is formed with a recess 26 adapted to receive and retain the roller, as shown in Fig. 5.
Patent GB-423501-A (GB)
Title: Improvements in or connected with harnesses or the like for parachutists
IPC: B64D25/06
Filed: 1933-06-28
Abstract: 423,501. Parachute equipment combined with chairs. IRVIN, L. L., Kingsweir, Broadway, Letchworth, Hertfordshire. June 28, 1933, No. 18435. [Class 52 (ii)] [See also Groups VII and XXV] A parachute harness as in Fig. 1, but fitted with seat and back pads 29, 26, may be combined with a chair as shown in Fig. 2. The seat and back pads then form part of the upholstery of the chair, the seat and back straps of the harness being concealed behind the top surfaces of said pads, and a cushion 36, having a skirt portion to cover the upper parts of the harness, being provided at the head of the chair. The ends of lap straps 15, 16, Fig. 1, are received by pockets 35, Fig. 2, on the sides of the chair, and recesses, covered by flaps 34, are formed in the arms of the chair to conceal the lower portions of the lift webs 1 and interconnecting straps 6, 7. The seat strap is correctly positioned underneath a user sitting in the chair, and the shoulder portions of the lift webs, left unconcealed, as shown in Fig. 2, are supported by the back of the chair so that the harness can be put on while a user is sitting in the chair. The parachute pack may be of the seat type secured beneath the seat pad in a well in the chair, or may be of the back type secured behind the back pad in a recess in the back of the chair.