baber/WOPTO huggingface dataset:
Patent GB-1026614-A (GB)
Title: Improvements in or relating to space heaters
IPC: F24H3/06
Filed: 1963-01-30
Abstract: 1,026,614. Air heating apparatus. PHILIPS ELECTRONICS & ASSOCIATED INDUSTRIES Ltd. Jan. 30, 1963 [Feb. 2, 1962], No. 3840/63. Heading F4S. A space heater for supplying heated air comprises a hot gas engine which drives a fan 4 for supplying the air via the cooler 6 of the engine and a heat exchanger 9 mounted on the engine heater 2. A burner 1 heats the heater 2. The hot gas engine which drives the fan 4 at a given speed by a driving belt 3. Air is passed by the fan 4 at a given speed by a driving belt 3. Air is passed by the fan 4, which also supplies air for combustion, from an inlet 5 to the engine cooler 6, and through the heat exchanger 9 where it is heated by the remaining heat from the burner, to an outlet 10. The burner gases pass through the heat exchanger 9 to an outlet 13. The burner 1 is over-proportioned with respect to the amount of heat required by the heater, whilst interchangeable nozzles allow the burner to use all kinds of fuels. A device 14 comprising a spiral bimetallic strip cuts off the burner flame to prevent overheating of the heater when the temperature of the gases in the combustion chamber exceeds a predetermined value. Compressed air produced by a compressor 18, driven by the engine is required for starting the engine and is stored in a tubular frame 16 and a tank 17.
Patent GB-524727-A (GB)
Title: Improvements in gas blast electric circuit breakers
IPC: H01H33/76
Filed: 1939-02-06
Abstract: 524,727. Gas-blast switches. BRITISHTHOMSON-HOUSTON CO., Ltd. Feb. 6, 1939, No. 3860. Convention date, Feb. 5, 1938. [Class 38 (v)] The gas-emitting wall of a gas-blast circuit-breaker con. sists of individual movable elements resiliently held together and capable of relative movement under the influence of the gas pressure ' produced by arcing whereby to produce or release outflow openings through which the pressuregas flows. In Fig. 1, a pile of gas-emitting plates 6, apertured to receive the movable contact 5 is held in compression between elements 1, 2 by means of a spring 8. In the closed position, the contact rod 5 bears on the under surface of fixed contact 7 and is also engaged by spring segments in an extension 9 thereof. In opening the switch under load, the pressure developed raises contact 7, after a travel of contact 5 dependent on the current-intensity, and permits the gas to force the plates apart slightly and escape at high velocity. In a modification, Fig. 3 (not shown), the pressure-spring acts on the base of the pile and the latter is surrounded by a laterally-apertured chamber of, for example, artificial resin, containing cooling devices for the gases emerging from the pile. In this form, the movable contact is hollow and a gasevolving filling-pin is provided. In Fig. 2, the discs each comprise segments 10 recessed at 11 to receive guide pins 12 and urged towards the movable contact by springs 8 located in the recesses. There may be four segments in each disc, but the gas-evolving disc 16 next to the fixed contact 7 is in one piece. Ah enclosing chamber is provided and has openings 15 for the exhaust gas. The segments may be graduated in regard to the strength of the springs 8, the strength decreasing in the opening direction of contact 5.
Patent GB-954702-A (GB)
Title: Improvements in adjustable lighting devices for cookers
Inventor: KAREN THOMAS
IPC: F21V21/26
Filed: 1962-02-01
Abstract: 954,702. Illuminating cooker hot-plates; supporting lamps. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 31, 1963 [Feb. 1, 1962], No. 3872/62. Headings F4R and F4WAn electric lamp 4 located in a housing 2 above the hotplate of a domestic cooker is movably mounted on a swivel tube 8 so that rotation about a vertical axis or upward movement of the swivel tube switches the light on. In one embodiment, Fig. 2, the swivel tube 8, through which the leads 22 to the lamp pass, carries a cam 11 at its lower end arranged so that movement upwards or rotation of rotation of the tube 8 and cam 11 releases the button 12 of a microswitch 13 to close the contacts 25. A stop 27, Fig. 3, prevents the tube 8 and lamp housing 2 being rotated through more than 180 degrees. Engagement of the cam 11 with the lower side of a bearing 9a supporting the tube 8 limits its upward movement. In another embodiment, Fig. 4, the microswitch 13 is mounted above the lower bearing 9a for the tube 8, and is operated by a ball 31, Fig. 6, which moves out of a recess in the tube 8 when the lamp housing is moved from its stowed position. A stop 34 on the tube 8 engages a vertical member 33 to prevent the tube being rotated through more than 180 degrees.
Patent GB-927065-A (GB)
Title: Variable displacement piston machine
IPC: F01B1/06
Filed: 1961-02-01
Abstract: 927,065. Reciprocating pumps; compressors. G. E. BJORKLUND. Feb. 1, 1961 [Feb. 4. 1960], No. 3887/61. Classes 8(1) and 102(1). [Also in Group XXIX] In a machine for use as a pump, motor or compressor and incorporating a plurality of units of the type comprising a stationary, cylindrical valve supporting a rotatable cylinder block housing 'radial' pistons which are drivingly connected to a surrounding ring rotatable with the cylinder block and mounted eccentrically relative to the valve axis. Two or more of said units are arranged such that their valve shafts are parallel and their eccentric rings directly or indirectly support each other circumferentially whereby the pressure sides of the units are partially or entirely balanced. In one embodiment, Fig. 4, the rings 34a, 34b of two units are pivotally mounted by shafts 32a, 32b in a housing 30 and are drivingly connected by gears 54a, 54b. A common inlet duct 48 and outlet ducts 52a, 52b serve valve ports 38a, 38b and 42a, 42b. If the inwardly facing ports 38a, 38b serve as pressure ports the reactions of the pistons are balanced by the contact between rings 34a, 34b and if said ports serve as suction ports such reactions are balanced through the gears 54a, 54b. Stroke varying is effected by sideways movement of the valve and cylinder block assemblies, Fig. 3, relative to the rings, thereby varying the eccentricity, the valve shafts being mounted in oblong slots 44 in the housing. In another embodiment, Fig. 5, four units are mounted with their rings in driving engagement, by means of gear teeth, with a central roll which is connected to a drive shaft, retaining rings 62, 62<SP>1</SP> engaging hub portions on either side of the cylinder blocks. Rolls 78 are located between the rings of the units and are mounted on a housing. Stroke varying is effected either by moving the valve shaft and cylinder assemblies sideways, or by moving the rolls 78 sideways, thereby varying the eccentricity in each case.
Patent GB-312039-A (GB)
Title: Improved method of and apparatus for feeding image bearing tape and projecting images therefrom
IPC: G03B21/134
Filed: 1929-02-05
Abstract: 312,039. Trans-Lux Daylight Picture Screen Corporation, (Assignees of Ward, J.). May 18, 1928, [Convention date]. Feeding webs.- The feed of a tape bearing stock quotations or other markings through an optical projecting apparatus is regulated in accordance with the rate of supply of the tape by a suction device engaging the tape. The tape 4, as it is delivered intermittently from the stockprice marking or other machine, forms a loop 11 from which it is drawn steadily over the table 12 of a projecting apparatus by feed rollers driven by an electric motor 14. The under and unprinted side of the loop 11 engages a perforated tube 24 connected to a suction fan 30 driven by a motor 29 and also by a pipe 41 to a corrugated diaphragm 34 having a plunger 43 engaging a switch 37 controlling the current supply from the mains 25 to the motor 14. With the main switches 26, 31 closed, the feed rollers are driven as long as the loop 11 is large enough to cover the perforation in the tube 24 and thus maintain the suction in the diaphragm 34 to allow the switch 37 to remain closed. When the size of the loop 11 is unduly reduced the vacuum is destroyed and the motor 14 stops. To prevent pulsations in the tape as it is delivered to the loop 11 from being communicated to the part of the tape passing through the projecting apparatus, a spring 23 may be provided to engage the tape on the table 12, or an additional suction tube may be arranged between the tube 24 and table 12.
Patent GB-539394-A (GB)
Title: Improvements in and relating to guards for machinery
IPC: F16P3/04
Filed: 1940-03-02
Abstract: 539,394. Machinery safety devices. BARRON A., and BARRON, B. March 2, 1940, No. 3947. [Class 80 (iv)] Consists in a safety device, particularly applicable to platen machines, whereby if the operator's hand is in a dangerous position at the outer edge of the movable platen, a guard member is moved to open the driving clutch and and apply a brake to 'stop the machine. The fixed platen is shown at 16 and the movable platen at 17, the latter carrying a rod 18, Fig. 2, connected by a flexible strip 18a with the outer edge of the platen, the rod being mounted on a slide 19 actuated by a ramp 21, This strip functions merely as a warning device. The safety device comprises a grid 10 mounted on rods 11, 11a extending the full width of the machine and carried by arms 12 thus forming a frame connected to arms 13 pivoted on a rod 14 freely mounted in side brackets 15. If the operator's hand is on the platen 17 it will strike the lower rod 11a and cause the guard to swing inwardly. Fixed to the rod 14 are cranked arms 23 the outer ends 23a of which are close to rollers 11b on the rod 11a. Also fixed to rod 14 is an arm 23b the end of which is hooked to engage a groove 26 in a plunger 25 slidable in a housing 24 and loaded by a spring 27. The plunger is in line with a lug 25a, Fig. 3, on one arm 28a of a bell-crank starting and stopping lever 28. The arm 28b of this lever is connected to a sleeve 29, axially movable on the main shaft 30, and having faces 31, 32, adapted to actuate clutch and brake levers 32a, 31a respectively. The clutch 33 and brake 34 are of the expanding ring type, and are mounted on arms 36, 36a integral with a boss 35 on the shaft 30. Fixed to arm 36a is a clutch ring 33 split at 33a to accommodate a reduced end 36b of arm 36. Fixed to each arm 36, 36a is a brake ring 37 adapted to co-operate with an expanding ring 34 provided with lugs 34b at its free ends. Movement of the levers 31a, 32a by the faces 31, 32 causes squared bosses 38, 41 on these levers to turn and expand the brake and clutch rings. With the above construction. if the operator's hand should contact with the bar 11a, the arm 23b, is tilted so as to free the plunger 25 which, in moving outwardly, actuates the lever 28 to open the clutch and apply the brake. To start the machine the lever is moved by hand in the reverse direction. The guard may be swung upwardly and backwardly to the position shown in chain lines in Fig. 2 and, in doing this, the plunger 25 will be released and the machine prevented from being started; starting cannot then be effected until the guard is returned to its safety position. Wire mesh members 45 may be either fixed, or movable with the guard. In a modification, (1) the machine has a side as distinct from an overhead drive (2) the lever 28 is actuated by a pedal and (3) means are described for stopping the machine manually during any phase of its operation, or automatically at the end of each cycle.
Patent GB-233789-A (GB)
Title: Improvements relating to air compressors
IPC: F04B39/00
Filed: 1924-02-15
Abstract: 233,789. Crossley, Sir K. I., and Webb, W. Le P. Feb. 15, 1924. Valves; valve gear.-In compressors more especially for scavenging or supercharging engine cylinders, in which the oscillatory motion of the piston connecting-rod reciprocates a piston valve within a hollow trunk in the piston, the ends of the hollow central trunk project from each side of the piston and are received by sleeves formed in one with the covers of the cylinders. As shown, the valve e is linked to the gudgeon pin d of the connecting-rod and is divided by a partition f. The pump is doubleacting, and ports are provided in the valve coacting with ports in the trunk b of the piston c. In a modification, the valve is open from end to end and is formed with suction ports only. Specification 13769/84, [Class 8, Air and gases, Compressing &c.], is referred to.
Patent GB-999053-A (GB)
Title: Improvements in or relating to heading and other metal working machines
Inventor: HOYT HERBERT LEAVENWORTH
IPC: B21J13/08
Filed: 1963-02-01
Abstract: 999,053. Forging. TEXTRON INDUSTRIES Inc. Feb. 1, 1963, No. 4159/63. Heading B3H. A metal-working machine, such as e header or nut-forming machine, with at least two dies A, B mounted on a frame 10, has a mechanism for transferring a workpiece between dies comprising transfer fingers 13 mounted on an arm 14 pivotally and slidably mounted to oscillate through a continuous arc C across the die faces and also slidably mounted for movement perpendicular to the die faces. This enables a workpiece, partly ejected from a die by a knock-out pin, to be pulled completely out of the die by the transfer fingers which also push it into the next die. Arm 14 is slidable in an upper pivot block 27, Fig. 3, secured to a shaft 28, and is actuated by a crank-pin 26 on a shaft 24 carrying a pinion 23 meshing with a rack 22. This is reciprocated by a cam 17 through adjustable spring-biased linkage 19, 21. The pivot block 27 may be adjusted vertically by a screw 30 for adjusting the stroke of the fingers 13. Both shafts 24, 28 are slidable axially and carry spools 31, 32 engaged by lugs 33, 34 on a common bell-crank lever 35 actuated by a cam 38 through adjustable linkage 40, 37. Thus the fingers 13 are caused to move outwardly and inwardly of the dies in timed sequence with their arcuate motion C. Both cams 17, 38 can be adjusted relative to each other. If the die faces are not coplanar, the arc C extends in a plane oblique to the die faces.
Patent GB-348116-A (GB)
Title: Improved method for transporting or storing pulverised coal or other powdered materials
IPC: B61D5/00
Filed: 1930-02-07
Abstract: 348,116. Bins. CORNER, G. H. C., Norton Hall, The Green, Norton-on-Tees, and IMPERIAL CHEMICAL INDUSTRIES, Ltd., Millbank, London. Feb. 7, 1930, No. 4160. [Class 20 (i).] In a rail or road wagon or other receptacle for the transport or storage of pulverized coal or like finely-divided material, any agglomeration that would prevent the free flow of the material during discharge is avoided by arranging the receptacle to be rotated slowly about an horizontal axis, thus agitating the material without inducing any substantial mixing effect. In the construction shown the receptacle A is in the form of an octagonal drum encircled by two hoops that co-operate with rollers C on the part-spherical bed B of a rail truck, the drum being rotated by a pawl G, which is actuated by means of a connecting-rod F and an eccentric E on one axle and engages a toothed rack H passing around the centre of the drum. Discharge doors J are provided, preferably in alternate faces of the drum, and a pinion N coacting with the rack H and rotated by a handle M revolves the drum to the desired position for discharge. Internal baffles O tapering towards the periphery of the drum serve to guide the material to the door openings.
Patent GB-578812-A (GB)
Title: Improvements in and relating to pig troughs
IPC: A01K5/00
Filed: 1944-03-07
Abstract: 578,812. Animal feeding appliances. BRIGGS, K. B. March 7, 1944, No. 4220. [Class 5 (ii)] Pig and like troughs 3 continuously supplied from a hopper 4 are opened for feeding purposes for predetermined times at predetermined intervals. Shutters 5 are moved between the closed vertical position and the open, chain-line, position through a crank and connecting-rod from a shaft 6 when this is rotated through 180‹. The connecting-rod consists of telescopic tubes 8a, 8b held extended by a compression spring 8c. A latch 9 pivoted to the lower part of the shutter and resiliently connected to the tube 8a locks the door in the closed position but is released as the tubes 8a, 8b are drawn apart. The shaft 6 is driven from an electric-motor through reduction and maltese-cross mechanisms and is controlled by two double-throw switches, one being a time-switch and the other a stop-switch. The time-switch controlling mechanism produces a change-over at, say, every four hours. The stop-switch is reversed by a small star wheel engaging a stud in the maltese mechanism. The maltese mechanism may be omitted, control being by time-switches only.
Patent GB-392875-A (GB)
Title: Improvements in and relating to coaster hubs
IPC: B62L3/00
Filed: 1933-02-11
Abstract: 392,875. Coaster hubs. FICHTEL & SACHS AKT.-GES., Schweinfurt, Germany. Feb. 11, 1933, No. 4286. Convention date, Feb. 26, 1932. [Class 136 (ii).] In a coaster hub of the type having a backpedalling brake and a band-applied auxiliary brake, the back-pedalling brake acts on the internal surface of the hub sleeve, and the auxiliary brake acts on a drum-shaped casing fixed on the hub sleeve, whereby overheating is avoided when both brakes are applied simultaneously. The back-pedalling brake sleeve 9 is expanded in the usual way by means of a driving member 5, displaceable spreading cone 7, and fixed conical abutment member 8. A supplementary brake drum 12 is secured to the hub sleeve 6 and contains brake shoes 14 adapted to be rocked in known manner by a cam actuated by means of a lever 23 connected by rods &c. to a hand-lever. In order to fix the abutment member 8 and the auxiliary brake disc 16 to the cycle fork 20, projecting flanges 18 on the member 8 pass through arcuate slots in the disc 16 and non-rotatably engage the inner end of an anchoring arm 19 secured at its outer end to the fork.
Patent GB-549143-A (GB)
Title: Improvements in the conversion of dextrose to levulose
IPC: C13K11/00
Filed: 1941-04-01
Abstract: 549,143. Levulose; sugar syrup. CORN PRODUCTS REFINING CO. April 1, 1941. No. 4386. Convention date, Aug. 3, 1940. Drawings to Speci - cation. [Class 127] Glucose in aqueous solution or in the form of liquors obtained from starch conversion by acids or enzymes or by hydrolysis of cellulose is converted into levulose by heating at 40-60‹C. with an alkaline catalyst such as oxide or hydroxide of calcium, barium or strontium; hydroxides of sodium or potassium, organic bases such as puridine, quinoline or soluble aliphatic amines or disodium phosphate. Syrups containing up to 50 per cent. of the sugar in the form of levulose may be obtained. Part of the dextrose may be removed from the converted liquor by crystallization. The conversion may be effected in the presence of a small amount of an adsorbent such as activated vegetable carbon. After the conversion with lime for 5 to 8 hours, the lime may be neutralized with hydrochloric acid or separated by sulphuric or phosphoric acids. The filtered liquid is evaporated in vacuo and decolorized by an adsorbent, and forms a substitute for invert sugar syrup. Specification 549,144 is referred to.
Patent GB-591008-A (GB)
Title: Furniture with built-in cigarette and tobacco ash receptacle
IPC: A24F19/14
Filed: 1945-02-21
Abstract: 591,008. Furniture fitted with ash-receptacles. DOWTY, G. H. Feb. 21, 1945, No. 4400. [Class 52 (iii)] [Also in Group VI] Tables, desks, or seats are fitted with removable receptacles 5 for smoker's refuse disposed at the ends of ducts 4 leading to openings 3 conveniently disposed on the surface of the article.
Patent GB-428880-A (GB)
Title: Improved fibre fabric of the axminster type
IPC: D03D27/12
Filed: 1934-02-09
Abstract: 428,880. Axminster pile fabrics. MOHAWK CARPET MILLS, Inc., Amsterdam, New York, U.S.A.-(Assignees of Underwood, G. J.; Amsterdam, New York, U.S.A.) Feb. 9, 1934, No. 4403. Convention date, April 3, 1933. [Class 142 (iv)] The fabric has a series of three double strand wefts 12, 13, 14, upper and lower stuffer warps 10, 11, two binder warps 16, 17 and pile tufts 15 looped around the middle wefts 13. The bottom wefts are of heavy woollen yarn, the others being of jute. There is one binder warp thread in each reed space and also one between each row of tufts, whereby long lengths of weft are exposed at the back. The wool yarn may be single, three or four ply.
Patent GB-162642-A (GB)
Title: Improvements in or relating to mercury vapour jet pumps with electric arc
IPC: F04F9/00
Filed: 1921-02-07
Abstract: 162,642. Siemens & Halske Akt.-Ges. April 24, 1920, [Convention date]. Addition to 157,118. Aspirating-apparatus, ejector.-To obviate the short-circuitng, with consequent necessity for cleaning, due to leakage of atmospheric air into the interior of the mercury-vapour jet pump with electric are heating described in the parent Specification, provision is made for automatically disconnecting or short-circuitng the electric arc upon such increase of pressure. A highly-exhausted inverted U-shaped tube p containing mercury has its legs n, m connected each to one of the electrodes a, b, which are coaxial cylindrical vessels in the lower part of the vaporizing- chamber c of the ejector, filled with mercury to the top of the partition d. Upon increase of pressure, the mercury is forced downwards in the electrodes and upwards in the legs of the inverted- U tube until the columns unite at the apex, which is somewhat above the normal electrode level, thus causing a short-circuit. From the apex, a tube q runs to the pipe h by which the vessel to be exhausted is connected, and is melted off after exhaustion, the preliminary-vacuum pump conection i being at the lower end of the cooled diffuser or condensation chamber. An alternative arrangement wherein the circuit to the electric arc includes a portion of the mercury column of a McLeod pressure gauge connected to the vessel to be exhausted is described.
Patent GB-1367057-A (GB)
Title: Device for dispensing of a paste product
IPC: G01F11/08
Filed: 1973-01-29
Abstract: 1367057 Reciprocating pumps K S H LANDSTRÍM [trading as INDUSTRI-KOMPANIET KURT LANDSTRÍM] 29 Jan 1973 4410/73 Heading F1A A dispenser for paste product comprises a container 4 for the product mounted in a casing 1, e.g. for mounting on a wall, an elastic outlet tube 5 on the container and a hand-operated lever 7 pivoted on a shaft 8 supported in casing 1, a member 10 of elastic material being mounted on lever 7 for pressing tube 5 to discharge its contents through outlet slit 6, a projection 11 on member 10 first closing-off the tube from the container, and projections 12 acting to return the lever to its rest position for tube 5 to re-fill from container 4. Removal of container 4 from casing 1 enables removal of shaft 8 and lever 7 without the use of tools.