baber/WOPTO huggingface dataset:
Patent GB-240073-A (GB)
Title: Improvements in and relating to feed attachments for leather measuring machines
IPC: G01B5/06
Filed: 1925-03-20
Abstract: 240,073. Bullimore, W. R. March 26, 1925. Seals. - Means for preventing unauthorized use of a thermionic valve consists of a device adapted to be sealed over one or more of the contact pins so that the device must be broken before using the valve. As shown a sheet of'paper, fabric, or other material is folded to form a socket l which is passed over a contact pin b, and the end n of the sheet is secured around the cap by adhesive. In another arrangement a cap of ebonite, papier mÔchÚ, or other insulating material is placed over a contact pin and secured by a wire passed through holes in the cap and in the pin, the ends of the wire being fastened together by a lead seal. In a further arrangement a metallic cap is used having depending wires or strips secured to the bulb by adhesive tape.
Patent GB-601681-A (GB)
Title: Improvements in or relating to drive mechanism for electric time switches
IPC: G04F3/06
Filed: 1945-03-27
Abstract: 601,681. Actuation of switches ; control of motors. NINETEEN HUNDRED CORPORATION. March 27, 1945, No. 7738. Convention date, Oct. 14, 1944. [Classes 38 (iii) and 38 (v)] A time switch comprises an induction motor 10 coupled to the shaft 37 of a switch unit 12 through reduction gears 32, 33, 35, 36, and intermittently connected to a source of supply through a switch 52 which is opened and closed by a notch or notches 60 in a continuously rotating disc 57. Closure of the switch 52 simultaneously energizes an electromagnet 45 and the motor 10, which rotates a cam 30 which, after a short delay, engages a lip 50 on a spring latch 42, which is moved against, and held by, the magnet 45. After one revolution of the cam 30, a pin 31 thereon strikes the latch part 51 and stalls the motor 10, until shortly afterwards the switch 52 opens to de-energize the electromagnet and the motor. The switch unit shaft 37 is thus advanced by a small amount during each revolution of the motor 10, and carries round contact-making cams 62. The shaft 37 is movable longitudinally by a knob 63, and may then be advanced manually when, as shown, a spring finger 69 is located in a groove 67 and a cam 62 has opened a switch 72 in the main control circuit. Specification 601,682 is referred to.
Patent GB-915921-A (GB)
Title: Improvements in or relating to agricultural machines
Inventor: JOHNSTON EDWARD J
IPC: A01D80/00
Filed: 1961-03-03
Abstract: 915,921. Haymaking machines. INTERNATIONAL HARVESTER CO. March 3,1961, No. 7805/61. Class 6(3). The tines 43 of a haymaking machine are mounted on a support 2 by means of a pad 4 of elastomer adjustably clamped to the support and through which the roots of the tines pass. As shown, the support is a tubular tine-bar 6 and the elastomer is canvas-reinforced rubber, e.g. tyre material. The clamp comprises a plate 10 having returned serrated edges 17 which enter the pad 4, and bolts 25 pass through the plate, pad and tine bar and can be adjustably tightened by nuts 33. Vertical pressure can also be applied to the pad 4 by nuts 55 on the tine-stems compressing washers 51, 56.
Patent GB-808553-A (GB)
Title: Improvements in clutches
IPC: F16D21/06
Filed: 1955-03-17
Abstract: 808,553. Clutches. MASSEY-HARRISFERGUSON Inc. March 17, 1955 [March 17, 1954], No. 7810/55. Class 80 (2). A double clutch for coupling the engine shaft with two driven shafts of a tractor for driving the ground wheels and a power take-off respectively comprises a flywheel 11 on the engine shaft 12 having a peripheral flange 20 to which is secured an annular abutment member 20 and an annular casing member 22, presser plates 27, 28 shiftable axially on but rotatable with the flywheel 11, and clutch discs 32, 36 on driven shafts 15, 16 disposed between the annular abutment member 20 and the flywheel 11 and casing member 22 respectively. The pressure plates 27, 28 are loaded by springs 41, 42 to engage the clutch discs 32, 36 and are actuated to disengage the discs successively by a sliding collar 51 operating levers 52 pivoted at 56 on the casing member 22. Each lever 52 has an end 61 engaging an adjustable abutment screw 65 on a ring member 60 and an adjustable contact screw 73 engaging a ring member 70. The ring member 60 is coupled by studs 62 with the pressure plate 27 whilst the ring member 70 is coupled by studs 71 with the pressure plate 28. When the levers 52 are actuated by the collar 51 the ring members 60 and 70 together with their associated pressure plates 27, 28 are moved oppositely to release the clutch discs 32, 36. This actuation takes place successively by reason of the adjustment of screws 65 and 73. Return movement of collar 51 effects re-engagement of the clutches in reverse order to disengagement.
Patent GB-907865-A (GB)
Title: Improvements in or relating to cutting chains
Inventor: MACHOWSKI RICHARD
IPC: E21C25/36
Filed: 1961-03-03
Abstract: 907,865. Chains; cotters. PIOTROWICKA FABRYKA MASZYN. March 3, 1961, No. 7885/61. Classes 24 and 89 (2). The joint pin 1 of a cutter chain comprises a tube within which is housed a spring 6 which urges a detent 5 through a hole in the tube wall to restrain the pin against axial movement, by engagement with an annular groove 4 in one of the chain links 2, 3 joined by the pin. The pin may be integral with a coded spring, as shown, or be mounted on a bow-shaped leaf-spring disposed generally parallel to the pin's longitudinal axis (Fig. 2, not shown).
Patent GB-559482-A (GB)
Title: Improvements relating to the manufacture of granular superphosphatic fertilisers
IPC: C05B1/02
Filed: 1942-06-09
Abstract: 559,482. Mixing-appliances. STURTEVANT ENGINEERING CO., Ltd., RICHARDSON & CO. (YORK)., Ltd., H. PROCTOR, J. T., and OGILVIE. A. June 9, 1942, Nos. 7869/42 and 1017/43. [Class 86] [Also in Group III] Granular calcium superphosphate is produced by a continuous process in which ground phosphate rock and sulphuric acid are intimately mixed and retained in a mixer until a superphosphate slurry is produced, the slurry then being continuously delivered into a rotating granulator, open to atmosphere, in which granules are formed and from which they are continuously delivered to a rotary dryer wherein they are retained until hardened and from which they are passed continuously to a grading separator. The process is conducted in an apparatus comprising a mixer in which the reaction occurs and into which is delivered ground phosphate from a hopper 2 and acid from a metering device. The reacted mixture passes to a granulator 10, open to the atmosphere, which may be of the type described in Specification 544,274, [Group III]. The granules pass down a shoot 13 into a dryer 14 and thence to a screen 18 of say 1 inch mesh. The large granules pass to a mill, while those which pass the mesh are carried up by a conveyer 20 to a grading screen 23. the coarser granules pass down a shoot 27 to the grinding mill, the desired grade to a conveyer 25 for bagging, and the fines to a conveyer 28a to be returned to the granulator. The mixing reactor may be as shown in Fig. 5. comprising shaft stripper arms 4 and paddles 5 of opposite inclinations but arranged to cause a slow advance of the material. Specification 491,841, [Group III], also is referred to.
Patent GB-908346-A (GB)
Title: Easily releasable fastener for furniture parts
IPC: F16B12/20
Filed: 1959-03-06
Abstract: 908,346. Furniture joints. WILLACH, W., and WILLACH, O., [trading as HUWILWERKE HUGO WILLACH & SOHNE]. March 6, 1959 [Dec. 4, 1958], No. 7898/59. Class 52 (2). [Also in Group XXV] A releasable fastener, suitable for securing together parts of furniture, comprises a hook 4 with an inner eccentric edge which is rotatably mounted in a housing 2 on one part of furniture and is adapted to co-operate with an eye 17 in a box member 13 mounted on another furniture part, the two parts being drawn together on rotation of a projection 6, secured to the hook 4, by a screw-driver. The housing 2 and box 13 are guided into the correct relation with each other by pairs of finger-like projections 9, 11 on the housing, the two projections 9 entering the slots constituting the eye 17 and the projections 11 engaging side walls 14 of the box 13. The inner projections may be dispensed with.
Patent GB-630509-A (GB)
Title: An improved safety guard for platen presses
IPC: B41F1/60
Filed: 1947-03-22
Abstract: 630,509. Machinery guards. FLETCHER FOUNDRY CO., Ltd., and FLETCHER, W. March 22, 1947, No. 7903. [Class 80 (iv)] In a platen printing press a guard 36, 42 is arranged between and above the movable platen 2 and. the fixed platen 1 so that it is engaged by the operator's hand if left on the movable platen to move a detent arm 43 to release a spring-loaded' arm 23 to disengage the machine clutch. The clutch is engaged against the pressure of spring 34 acting on the arm 23 by an operating handle 10, crank-arm 29 and link 28 connected to arm 23. A pin and slot connection is provided between the crank 29 and link 28 so that after the clutch has been engaged and the arm 23 held by the detent arm 43 the lever 10 may be returned to its initial position by a spring 33. Rotary movement of the arm 23 to engage and disengage the clutch is converted into axial movement of a sliding clutch member 13 on the power shaft 4 by the engagement of cam surfaces 19 on a sleeve 23 secured to the arm 23 and a fixed sleeve 18. The clutch member 13 carries plungers 16 for engagement in holes 12 in a flange 11 secured to the machine driving pinion 8, springs 15 tending to disengage the clutch members.
Patent GB-271046-A (GB)
Title: Improvements in or relating to the cylinders of internal combustion engines
IPC: F02B75/00
Filed: 1927-03-22
Abstract: 271,046. Ferguson, G. May 15, 1926, [Convention date]. Cylinders, liners, ports, and passages of, and cooling. - The upper part 5 of a twopart liner is clamped, as by studs and nuts 14, between a cylinder head 1 and the upper part 7 of the water jacket and the parts are so constructed that the whole of the upper part of the cylinder may be removed bv breaking a joint 17 which is not exposed to pressures exceeding that of the scavenging air. The joint 17 is at the scavenging ports 9 and near the exhaust ports 11, the passages of these ports being integral with the jacket as shown. A spigot is formed at the joint 17 to centre the upper part of the cylinder.
Patent GB-547862-A (GB)
Title: Improvements in chains
IPC: F16G13/12
Filed: 1941-06-25
Abstract: 547,862. Chains. PARKES, T. J. June 25, 1941, No. 7990. [Class 24] [Also in Group XXII] Chain links are made from two sections each having a loop 10 and end portions 11 lying adjacent to each other and overlapping the end portions of the other section to which they are secured by welding &c. Instead of the end portions being welded together, they may be welded to an intermediate member 28 as shown in Fig. 16, and each section may be twisted so that the loops lie in the same place. The overlapping portions may be formed with flats which engage one another, and may be provided with notches or recesses to provide keying for the welding metal. To avoid the formation of shoulders at the connection of the sections, the ends may be made converging and cut obliquely to lie parallel in the closed position. A chain is built up by engaging pairs of sections with the ends lying in opposite directions, and connecting them to the ends of similar pairs.
Patent GB-709594-A (GB)
Title: Organo-tin halides
IPC: C07F7/22
Filed: 1952-03-31
Abstract: Organo-tin halides of the general formula RnSnX4-n, where R represents an alkyl or aryl group, X represents chlorine, bromine or iodine and n is 1, 2 or 3, are prepared by reacting a stream of an organic halide RX in fluid form, R and X having the above significance, with the tin component of a solid contact mass containing tin and a metal catalyst consisting of copper, gold or silver at a temperature between 250 DEG  and 450 DEG  C.  The contact mass may contain at least 40 per cent by weight of the metal catalyst.  The contact mass may be in the form of an alloy or an intermetallic compound, and the mass may be in a porous form to alloy the organic halide to pass therethrough.  An inert carrier such as nitrogen may be employed in conjunction with the higher liquid organic halides.  The preferred reaction temperature is about 300 DEG C.  Organo-tin halides of the general formula R2SnX2 are the predominant reaction products.  In the examples, contact masses containing copper and tin are used to prepare dimethyl tin dichloride.
Patent GB-565486-A (GB)
Title: Improvements in or relating to the manufacture of electric vacuum tubes
IPC: H01J29/92
Filed: 1943-05-21
Abstract: 565,486. Electron discharge apparatus. STANDARD TELEPHONES & CABLES, Ltd. May 21, 1943, No. 8127. Convention date, May 29,1942. [Class 39 (i)] In an electric vacuum tube 1 the exhaust tubulation 8 is provided with a flange 9 having a serrated edge. The leads for the tube are threaded through beads 13 which rest in the serrations and under the influence of heat the neck of tube 1, beads 13 and the edge of flange 9 are fused together to form a hermetically sealed joint. The flange is pressed so that the serrations have depending lips 11 which give better contact with the beads 13.
Patent GB-640916-A (GB)
Title: Improvements in or relating to a window operator
IPC: E05F11/38
Filed: 1947-03-25
Abstract: 640,916. Operating windows. TRICO PRODUCTS CORPORATION. March 25, 1947, No. 8140. Convention date, May 14, 1946. [Class 20(iii)] [Also in Group XXIX] A window is operatively connected to the piston 4 of a fluid motor to which a pressure differential is supplied through a pair of valves 18, Fig. 2, which are operated for the opening and closing window movement respectively, and a valve 34, cooperating with the closing valve 18, is actuated by a member connected to the window, whereby the pressure differential acting on the piston is reduced to retard the window as it approaches the closed position. As shown, a vertically sliding vehicle window 1 is supported from an endless cable 5 passing over pulleys 6 to the piston 4. When the window is nearly closed, a lug 37 on the cable moves a valve finger 38 to cut off the air supply through a pipe 33 to the control member 10 containing the valves 18. In this member, chambers 11, connected respectively to opposite sides of the piston by pipes 14, 15 normally communicate with a suction supply line 9, and are shut cff by the valves 18 from chambers 16 communicating with the atmosphere through pipe 33 and filters 31 and ports 30. The ports may be partly closed by manually adjustable disc valves 27 to control the normal window-operating speed. To operate the window, an electromagnet 24 is energized to lift an associated valve 23 thus allowing air to act on a piston 20 rigidly connected to the corresponding valve 18. The piston then shuts off the suction supply to the pipe 14 or 15 at the same time that the valve 18 lets in the atmosphere to operate the piston 4.
Patent GB-838002-A (GB)
Title: Polymerisation catalysts
IPC: C08F14/06
Filed: 1958-03-13
Abstract: Tertiary butyl chloride and bromide are reacted with magnesium turnings in diethyl ether solution.ALSO:Vinyl chloride is polymerized by means of a catalyst R1R2R3CMgX wherein R1, R2 and R3 are the same or different alkyl groups and X is halogen, preferably bromine.  In examples, the catalyst is either tertiary butyl magnesium bromide or chloride, diethyl ether and optionally petroleum ether (c.p. 100-120 DEG  C.) being used as solvents; the polymer may be washed with methanolic HCl, dissolved in tetrahydrofuran and precipitated with methanol.
Patent GB-507258-A (GB)
Title: Improvements in and relating to electric condensers particularly for radio receivers
IPC: H03J3/20
Filed: 1938-03-16
Abstract: 507,258. Condensers. MURPHY RADIO, Ltd., and TRUSCOTT, D. N. March 16, 1938, No. 8168. [Class 37] A fixed condenser is associated with a trimming condenser, the means for securing the fixed condenser serving also for adjusting the trimmer. In the example shown in Fig. 2, a fixed, cartridge-type condenser, which may comprise two sections 7, 8 end to end, with a common terminal 9, is held in a mounting by a screw 3, by which a variable pressure can be exerted on a flexed electrode of a variable condenser 4. In Fig. 3 the outer end of the condenser is supported on a spring 14 the inner end resting in a groove of a rotatable disc 12 having a cam surface 13 pressing against a variable electrode of the trimming condenser 4.
Patent GB-1287075-A (GB)
Title: Cooking utensil
Inventor: HARRIS JOHN MADISON
IPC: A47J37/10
Filed: 1971-03-30
Abstract: 1287075 Cooking utensil J M HARRIS 30 March 1971 8184/71 Heading A4A A cooking utensil for use inside a frying pan enables both sides of an egg to be cooked without turning. The egg 8 is placed in the pan 4 in the usual way and the utensil placed over it. Water from the reservoir 23 can enter the pan by means of the passage 18 causing the upper side of the egg to be cooked by steam. The reservoir is sealed by the manually operable valve assembly 24. The conical tip of the valve 22 is held seated at the top of the passage 18 by a spring 30. The knob 2 and the cover 3 may be formed integrally or may be held together by screws 14. A means 15 of deflecting the water away from the egg may be incorporated on the underside of the utensil.
Patent GB-491543-A (GB)
Title: Process for the production of valuable hydrocarbon products by the destructive hydrogenation of extraction products of solid carbonaceous materials
IPC: C10G1/06
Filed: 1937-03-20
Abstract: Pressure extracts obtained by the extraction of solid carbonaceous materials with solvents are converted into valuable liquid products by mixing the extracts with products of high molecular weight resulting from a previous destructive hydrogenation of another portion of the same or another pressure extract which have been collected as liquids, without substantial cooling, from the hot reaction products issuing from the reaction vessel in which said previous destructive hydrogenation has been carried out, preheating the mixture, and subjecting it to destructive hydrogenation.  Part of the middle oil and heavy oil condensed from the vaporous fraction of the destructive hydrogenation may also be added to the extract.  The destructive hydrogenation is carried out at temperatures from 250-600 DEG  C. and under pressures above 50 atmos. and in presence of the usual catalysts supported on carriers, while the extraction is carried out at 250-470 DEG  C. at pressures above 20 atmos. and, if desired, in <PICT:0491543/III/1> presence of catalysts and a limited amount of hydrogen.  Solvents specified for the pressure extraction are cyclic hydrocarbons of high boiling point, e.g. anthracene, tetrahydronaphthalene, hydro-indene &c., middle oils obtained by destructive hydrogenation, and phenols.  Pressure extract admixed with solvent already used for extraction is fed from tank 1 into mixer 2 where it is mixed with heavy oil from hot catchpot 3 and from distillation unit 5.  The mixture is passed to still 7 where the solvent used for the pressure extraction is distilled off.  The mixture after addition of finely divided bog iron ore as catalyst in vessel 14 is passed through a measuring vessel 15 and a preheater 18, where hydrogen is added through line 17, into converter 19.  Products of the reaction pass into a hot separator 3 from which liquid products pass with reduction of pressure at valve 20 in part into mixer 2 and the remainder to centrifuge vessel 12.  Vapours pass from separator 3 through cooler 23 to cold separator 24 from which hydrogenating gases are recycled through line 17 while condensate passes to still 5 where it is fractionated into heavy oil recycled to the hydrogenation stage through line 6, gasoline removed through line 27, and middle oil recycled in part through line 10 and in part passed through line 26 into the centrifuge 12 from which fuel oil free from catalyst is recovered through line 21 and catalyst is recycled through line 13.  Specification 431,795 is referred to.
Patent GB-1123841-A (GB)
Title: Improvements in inspection platforms for combustion chambers of furnaces and the like
Inventor: COOMBS WILLIAM CHARLES
IPC: E04G3/30
Filed: 1964-02-27
Abstract: 1,123,841. Platforms. FOSTER WHEELER Ltd. and NON-CORROSIVE METAL PRODUCTS Ltd. 1 March, 1965 [27 Feb., 1964; 3 April, 1964], Nos 8269/64 and 13876/64. Heading E1S. An inspection platform in a furnace combustion chamber has telescopicly adjustable side spans with end section hinged to them supported by cables 38, 40 extending from near the roof, and adjusted by means of winches mounted on the platform. The crossspans of the platform may be pivoted to the side spans so that the side spans can be tilted to pass a nose projecting from a furnace wall. The cross-spans may also be telescopic.
Patent GB-1413800-A (GB)
Title: Diagnosis of viral diseases
IPC: G01N33/569
Filed: 1972-12-06
Abstract: 1413800 Test for viral disease BECKMAN INSTRUMENTS Inc 6 Dec 1972 8348/74 Divided out of 1413799 Heading G1B A serological diagnostic test for a viral disease comprises bringing an aliquot of human blood serum suspected of containing antibodies to the virus into contact with a specific viral antigen, then adding to the mixture a serological reagent free of haemoglobin and agglutinative with the specific viral antigen, for example the "Zichis antigen" of Specification 1413799, and observing the result, a positive test being indicated by the absence of agglutination. In a similar test, a virus isolated from a patient is brought into contact with a serum known to contain antibodies to a specific virus, a serological reagent as above but agglutinative with the isolated virus is added and the result is observed.
Patent GB-395659-A (GB)
Title: Improvements in devices for spreading textile and like fibres into a uniform fleece
IPC: D01G25/00
Filed: 1933-03-20
Abstract: 395,659. Tobacco-feeding mechanism. PFEIFFER, B., 135, Kuthstrasse, Vingst, Cologne, Germany. March 20, 1933, No. 8369. [Class 130.] Tobacco and like fibres are spread evenly over the sieve surface b of a rotarv suction drum by the knife edged extremity d of the hopper wall c, the drum finally delivering the fibres in the form of a fleece. Radial partitions f divide the drum into a number of cells k forming suction channels which communicate, through chambers i<1>, i2, i<3> in the supporting shaft e, with a suction pipe i, two additional suction pipes g, h being provided to communicate with the cells k when the latter are positioned respectively in front of and immediately below the knife edge d. A pressure pipe l is provided to assist delivery of the fleece at the end of suction chambers i<3> or i<2> as desired. A concave member b<1> adjoining the knife edge d extends over that part of the drum surface subjected to suction.