baber/WOPTO huggingface dataset:
Patent GB-1224266-A (GB)
Title: Improvements in and relating to rotary, positive-displacement pumps
Inventor: SCHINK RICHARD ROBERT
IPC: F04C14/26
Filed: 1969-07-31
Abstract: 1,224,266. Rotary positive-displacement pumps. REX CHAINBELT Inc. July 31, 1969 [Dec. 3, 1968], No. 38498/69. Heading F1F. A hydraulic pump similar to that disclosed in Specification 1, 224, 265 has a valve-assembly for controlling the fluid-pressure exerted on the piston 91a comprising an axially-movable member 130 connected to the input side of the pump by a passage 125, the member being loaded by an adjustable compression-spring 131. A passage 150 transmits output pressure in a passage 117 to the righthand end of the member. The pressure-differential across a land 153 determines the position of the member and hence that of a pair of lands 160, 161 controlling a passage 116. Flats (170, 171), Fig.4  (not shown), formed on the land 160 obviate oscillation of the piston 106 in that they prevent complete closure of the passage 116. Alternatively, in addition to a valve-member 210, which is similar to the member 130, a spring-loaded pilot valve-member 231 is provided to control a passage 243. The passage in the member 210 communicates with the passage 243 by virtue of flats on the land adjacent a compression spring 220. When the pressure in the passage 243 exceeds a predetermined value the member 231 retracts to allow fluid in said passage to escape to the low-pressure side of the pump by way of a bore 202 and a passage (not shown). The consequent equalization of pressures in a chamber 224 and a passage 208 allows the spring 220 to move the member 210 to the left and thereby open a passage 207 leading to the piston 91a.
Patent GB-1527992-A (GB)
Title: Rubber compositions and a method of preparing the same
IPC: C08L61/12
Filed: 1975-09-19
Abstract: 1527992 Rubber composition for direct bonding to textile materials N-I INST SHINNOI PROMYSHLENN I I SLANTSEV TJUMENSKY ZAVOD PLASTMASS and MOSKOVSKY INST TONKOI KHIMICHES TEKHNOLOGII I MV LOMONOSOVA 19 Sept 1975 38511/75 Heading C3K A rubber composition comprises 100 parts by weight of a synthetic rubber, together with a curing agent, an accelerator, an activator, a reinforcing promoter, a filler, a softener, a stabilizer and an antiscorching agent, and 1-10 parts by weight of an adhesive additive which is an interaction product of formaldehyde with a mixture of monomethyl-, dimethyl-, and ethylresorcinols, containing not less than 50% by weight of methylresorcinol, the condensation product having a molecular weight of 350-500, with a complex of resorcinol with hexamethylene tetraamine, a complex of 5- methylresorcinol with hexamethylene tetraamine, hexamethylene tetramine, hexamethylol melamine, isopropyl or butyl ether of hexamethylol melamine, or anhydroformaldehyde aniline.
Patent GB-1255498-A (GB)
Title: Production of finely divided silica
Inventor: CHILTON HENRY THOMAS JOSEPH
IPC: C09C3/04
Filed: 1968-08-13
Abstract: 1,255,498. Finely divided silica. MONSANTO CHEMICALS Ltd. 29 July, 1969 [13 Aug., 1968], No, 38674/68. Heading C1A. Finely divided silica is produced by contacting a stream of hot gas from a plasma torch, i.e. the flame of the torch with a surface of a body of material of which at least a layer at the surface comprises silica, thus forming a molten zone of silica from which evaporation of silica occurs into the gas stream, the stream then being quenched by the introduction of cooling gas, and silica in finely divided form is separated from the stream. Preferably, the gas stream from the plasma torch contains a reducing gas, e.g. hydrogen, ammonia, or methane, diluted with nitrogen and/or argon (and/or the surface contains a reducing agent, e.g. carbon), and the cooling gas contains oxygen, this being introduced before the vapour is cooled to a temperature at which any substantial precipitation of solid occurs and in a quantity sufficient to make good any deficiency due to reduction of the vaporized silica. Also the cooling gas may contain water vapour. The apparatus preferably comprises a D.C. non-transferred arc generator, and the silica surface is located on the inside surface of an open-ended cylinder which is rotatable about its axis and is mounted in a water-cooled metal housing.
Patent GB-345241-A (GB)
Title: Improvements in or relating to combing machines for textile fibres
IPC: D01G19/20
Filed: 1929-12-18
Abstract: 345,241. Combing-machines. NASMITH, J. W., Leegate, Mauldeth Road, Heaton Mersey, Manchester. Dec. 18, 1929, No. 38733. Addition to 339,301, [Class 120 (i), Spinning, Preparation &c. for]. [Class 120 (i).] The detaching and piecing mechanism described in the parent Specification is modified in that the detaching roller D and top piecing roller P<1> are mounted in bearings which are movable simultaneously to and from the nippers whilst ensuring the intermittent contact of the roller D with the combing cylinder segment S. The neck of the detaching roller D is embraced by a curved part 10 of the weight hook 9 which is reciprocated horizontally by a cam-oscillated driving shaft 3, the weight hook 9 also having an extension 11 carrying on an arm 14 the top piecing roller P<1>. The neck of the detaching roller D is also embraced by the bifurcated end of a lever 20 pivoted at 19 on a lever 15 adjustable about a pivot 16. The rollers are shown in the extreme forward position. The shaft 3 then rotates anticlockwise, the roller p<1> rolls back on the lower piecing roller P while the roller D rolls on the segment S until it reaches the bottom of the fork in the lever 20 and then is lifted therefrom. Specification 17495/09, [Class 120 (i), Spinning, Preparation &c. for], also is referred to.
Patent GB-1341902-A (GB)
Title: Processes for forming chromate conversion coatings upon zinci ferous surfaces and solutions for use therein
IPC: C23C22/77
Filed: 1971-08-18
Abstract: 1341902 Chromating zinc surfaces AMCHEM PRODUCTS Inc 18 Aug 1971 [19 Aug 1970] 38744/71 Heading C7U Zinc or zinc alloy surfaces, e.g. galvanized iron, are chromated in a bath comprising 3 to 20g. Il. chromic acid, one or more acids selected from the group consisting of nitric, acetic and fluosilicic acids, and a source of fluoride, the pH of the bath lying in the shaded area of the Figure. The active fluoride may be hydrofluoric, fluosilicic or fluotitanic acids. The temperature of the bath may be 60 to 125‹F.
Patent GB-1447507-A (GB)
Title: Frequency stabilised oscillator circuit arrangements
IPC: H03L7/14
Filed: 1973-08-16
Abstract: 1447507 AFC systems SIEMENS AG 16 Aug 1973 [22 Sept 1972] 38764/73 Heading H3A A cricuit comprises two controlled oscillator stages 4, 4<SP>1</SP>, and a switching arrangement S 3  for periodically switching between the outputs of the two stages wherein, when one of the oscillator stages is free-running for a time interval to supply an output to a load at 5, the other is frequency stabilized for a terminal part of the said time interval by phase comparing at 2 a reduced frequency component of the oscillator with the output of a reference oscillator 1 to supply an error control voltage to a varactor diode in the oscillator stage. The controlled and reference oscillator outputs may be applied via an adjustable frequency converter or divider to the phase discriminator 2. The controlled oscillators may operate at different frequencies as in Fig. 2 or at the same frequency (Fig. 3, not shown) in which case switching is done at a slow rate as to minimize incidental phase modulation.
Patent GB-893013-A (GB)
Title: Improvements relating to multi-wheel aircraft undercarriages
Inventor: THARRATT ALEXANDER
IPC: B64C25/34
Filed: 1958-12-02
Abstract: 893,013. Aircraft undercarriages. DOWTY ROTOL Ltd. Dec. 2, 1959 [Dec. 2, 1958], No. 38888/58. Class 4. In a bogie type undercarriage in which the bogie frame is pivotally mounted on the lower end of the leg and is biased to ensure that the rear wheels only are spun up at touch-down, the bogie frame is connected to the leg by a spring loaded biasing element having sufficient free travel to ensure that initial pivoting of the beam during landing takes place without contraction of the leg and the final pivotal movement of the beam, to bring all wheels into contact with the ground, is accompanied by the initial compression of the leg. The elements 5, 8 of the leg are connected by a scissors linkage 9, 11, the link 11 being connected at 12 to the leg and extended by an arm 21 to provide a pivotal connection 23 for a telescopic link 22 normally extended by a compression spring 29, and attached at 24 to the bogie beam 14. Interengaging faces 27, 28 on the parts of the link limit its extension. In operation, and upon touch-down, wheel 19 engages the ground first and the beam 14 rocks about pivot 15 until link 22 is fully compressed. Then further rocking of the beam to bring wheels 18 into contact with the ground will be accompanied by initial compression of the leg, thereby ensuring that the wheels 18 are not brought into contact with the ground at twice the velocity of descent of the aircraft. It is stated that the link shown may be replaced by a tensioned link connected between the beam and an extension of scissors link 9.
Patent GB-887182-A (GB)
Title: Shoe box
Inventor: VANNICE MARVIN WESLEY
IPC: B65D21/02
Filed: 1959-11-17
Abstract: 887,182. Shoe boxes. VUE-CHEST Inc. Nov. 17, 1959 [Feb. 9, 1959], No. 38925/59. Class 18. A shoe box comprises a sleeve 11 with side walls 15 having at least one aperture 21 and an open front end, in which can be slidably positioned a transparent drawer 12 with side walls 32 and a front wall 36. The sleeve 11 which may be made of plastics is formed with openings 22 in its top wall 13 and lugs 26 depending from its bottom wall 16, for stacking engagement with similar sleeves ; alignment in stacking is assisted by a flange stop 24 depending from the rear of the top wall 13 and hooks 28 depending from the rear of the bottom wall 16.
Patent GB-1430167-A (GB)
Title: Plate rolling
IPC: B21D5/12
Filed: 1973-08-18
Abstract: 1430167 Plate rolling; making tubes K M HUME 18 Aug 1973 39129/73 Headings B3E and B3A A method of forming a cylindrical article by rolling plate 13 comprises engaging a transverse edge of the plate with a projecting axial rib 36 on a mandrel 20 so that the plate is tangential to the mandrel at the edge, and rotating the mandrel while engaging the remainder of the plate under pressure to curve the plate about the mandrel. The apparatus is provided with plate supporting rollers 12, Fig. 11, and pressing rollers 17, 18 mounted on a frame 11. The mandrel is supported by two hydraulic cylinders 21, 22, one of which (22) is connected by a pivot pin 27 to a bracket 28 on the frame and can be moved by a cylinder 30 to allow removal of the finished article. The shaft 31 of the mandrel is driven by a motor 32 and reversing gear-box 33 via a universal coupling 34. A welding head 38 is disposed vertically above the mandrel axis for forming a pipe from the curved plate. The pipe can then be removed from the mandrel using rollers 39, 41. The mandrel may be of cylindrical form or alternatively, Fig. 13 (not shown), comprise a plurality of discs (35) mounting a partial supporting surface (35a). In operation, plate 13 is guided to the flange 37 of the rib and the mandrel is rotated anticlockwise, Fig. 1, to just beyond top dead centre. Rotation is discontinued and the mandrel is raised slightly by means of cylinders 21, 22 whereupon the plate is advanced until the trailing end is clear of the mandrel. The trailing edge is then fed under the flange 37 and the mandrel is rotated clockwise. A tapered plate (42), Fig. 8 (not shown), can be engaged over roller 18 to transfer the load from the roller and the previously curved part of the plate 13. The welding may be carried out while the pipe is on the mandrel, as it is being withdrawn, or at some subsequent stage.
Patent GB-1008181-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B7/00
Filed: 1962-10-16
Abstract: 1,008,181. Photographic cameras. CINERAMA CAMERA CORPORATION. Oct. 16, 1962 [June 27, 1962], No. 39170/62. Heading G2A. In a camera having a photo-electric device adapted to control the aperture setting of an iris diaphragm or the speed setting of a shutter for the camera lens through a selected one of a plurality of circuits, said device and the diaphragm or shutter are connectable to each other through a switch selected from a plurality of switches closed by a mating portion on a removable film cassette inserted into the camera, the mating portion of the cassette being positioned to select the switch in accordance with the film speed. As shown, a series chain of resistors is selectively connectable through normally open switches 40, 66, 68, 72 in shunt with the camera diaphragm operating coil 52 across the photo-cell 34 in a shutterless panoramic camera rotatable through up to 360 degrees about a vertical axis through a principal point of the camera lens with simultaneous movement of the film. The appropriate switch for the film speed is closed by an abutment as at 48 on the removable cassette (Fig. 2) which is located and retained in the camera 10 by ball catch ends 81, 82 on the axially displaceable supply and take-up spools 22, 24 engaging depressions 78, 79 in the camera.
Patent GB-1277792-A (GB)
Title: Stress relief apparatus for a cable termination or joint
IPC: H02G15/068
Filed: 1969-08-05
Abstract: 1277792 Cable joints and terminations FARUKAWA DENKI KOGYO KK 5 Aug 1969 [5 Aug 1968 30 May 1969] 39246/69 Heading H2E To control the electric stress in high-voltage cable terminations or joints, an elastic tubular body 3, preferably of an elastomer having a shore hardness less than 50 and having an integral stress cone 4, is compressed on to the surface of the cable insulation 2 by axial forces as a clamping member 8 is moved towards an insulating support 5 by springs S<SP>1</SP> when nuts 9<SP>1</SP> on studs 7c are tightened. The tubular body 3 is tapered at both ends and the stress cone 4 has a cylindrical portion which projects from the body and is electrically connected to the cable shielding layer 10 by a layer of conducting tape 11. The clamping member 8 and the support 5 have internal conical surfaces to match the body 3 and the support 5 is preferably of epoxy-resin and has an embedded electrode 6 earthed through circumferential studs 7a, 7c and arranged in line with the conical portion of the stress cone 4. The whole is encased in a porcelain housing 13 filled with insulating compound 21 retained by a casing 51 which is sealed to the plastics cable sheath by tape 52 and connected to a lower cover 22 by an earth connection 53. The cable may have a semi-conducting layer 72 under the shield 10 and joined by a conducting coating or wrapping 71 to the stress cone 4. Alternative embodiments (Figs. 1 and 2, not shown) use a single spring (S) coaxial with the cable or eliminate the spring by allowing the nuts (9) to bear directly on a flange on the clamp 8.
Patent GB-822070-A (GB)
Title: Combined package and mailing cover
IPC: B65D75/34
Filed: 1956-12-27
Abstract: 822,070. Packages. IVERS-LEE CO. Dec. 27, 1956 [April 23, 1956], No. 39275/56. Class 94(1). A package comprising a flat inner container of flexible sheet material secured at one edge to a cover sheet, has a portion facilitating posting of the package, the portion including tongue and slot closure means. The portion maybe torn off, leaving a closeable package. In one embodiment, a container A is secured by a margin 7 to parts b, f of the cover sheet. A closure flap C extends from the part b, being doubled at 16 and its doubled edge tucked between the part f and the container. A portion D is connected to the part f and provides a strip 24 laying on the closure flap and a panel a on which postal information is written. It also provides tongues 32, 33 which enter a slot 34 to close the package. The part D may be torn off along a weakened line 21 leaving a packaged closed by the flap C. In a further embodiment, Fig. 20, the doubled closure flap C extends from the part b and has the portion D connected to it by a tear line 40. A tongue 46 enters a slot 43 to close the package for mailing, the tongue being shaped to form, when torn off along a line 45, an index card. In another embodiment, Figs. 24-29 (not shown shown) a long tongue is provided capable of being reverse folded when in its slot to provide a positive lock. The contents, tablets as shown, may be protected by apertured sheets E as. described in Specification 799,748.
Patent GB-956724-A (GB)
Title: Improvements in spacing means for conductor bars of electrical devices
IPC: H02K3/50
Filed: 1960-11-16
Abstract: 956,724. Transformers. GENERAL ELECTRIC CO. Nov. 16, 1960 [Nov. 20, 1959], No. 39350/60. Heading H1T. [Also in Division H2] Conformable conductor spacing blocks 4 (Fig. 2) e.g. for stator and transformer windings are made from glass fibre filled thermosetting resin. The fibres are oriented in one direction and the block initially has the consistency of stiff putty. The block is placed between two conductors and compressed so that it conforms to their shape and is held rigidly in position by heating. Alternatively it may initially be held in position with glass fibre cord (Fig. 3, not shown) and may be fitting during or after the construction of the winding. Any thermosetting resin can be used including epoxy and polyester resin, and examples of suitable constituents for the blocks are described. U.S.A. Specification 2,308,495 is referred to.
Patent GB-1344219-A (GB)
Title: Isoprene recovery process
IPC: C07C1/00
Filed: 1972-08-24
Abstract: 1344219 Distilling hydrocarbons SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 24 Aug 1972 [26 Aug 1971] 39416/72 Heading C5E Isoprene is recovered from a mixture containing also cyclopentadiene and other C 5 -unsaturated hydrocarbons by a process including two extractive-distillation steps and a solventstripping step. The greater part of the cyclopentadiene is taken off in bottoms from the first extractive distillation, the remainder with the isoprene in the bottoms from the second extractive distillation. This second bottoms is stripped and three streams obtained: isoprene overhead. a cyclopentadiene-enriched sidestream and solvent bottoms, which last is recycled, in part to the top of each extractive-distillation zone, and in part to the top of the stripping zone. Suitable solvents are acetonitrile, acetone, furfural, dimethylformamide, dioxane, phenol, N- methylpyrrolidone and their aqueous mixtures. As shown, a C 5  fraction obtained as a byproduct of the cracking of naphtha to ethylene enters by line 11, and its heavy ends are removed in fractionating column 10. The overhead from this column passes to column 20 where it is extractively distilled in the presence of solvent from line 26. The fat solvent from this column is stripped in the column 30; cyclopentadiene is recovered at 32 and dimer at 34, solvent is taken off as a sidestream and recycled by line 38. The raffinate from column 20 is again extractively distilled in column 40 in the presence of a larger quantity of solvent from line 48. Pentanes and pentenes are taken off overhead, and a fat solvent containing isoprene and some cyclopentadiene is taken to stripper 50. The overhead from this stripper is mainly isoprene; part of it is returned to the second extractive distillation by line 46, and part by line 54 to the second stripping zone 50A, where it meets a stream of solvent from the line 64. Isoprene is taken off by line 62 and may be further fractionated. A liquid side-stream 58 and hot vapour 59 pass to a sidestream stripper 70, from which are taken off hydrocarbons (mainly cyclopentadiene) at 72 and solvent at 74. The bottoms from stripper 50 (solvent) are in part reboiled and in part combined with the solvent from the sidestreamstripper and recycled, parts going to the tops of each of columns 20, 40 and 50A. The bottoms from column 50A are in part reboiled by heatexchange at 68, and in part returned to column 50.
Patent GB-993843-A (GB)
Title: Improvements in or relating to multitrack magnetic transducing heads
Inventor: FRANKLIN DONALD PETER
IPC: G11B5/127
Filed: 1960-11-17
Abstract: 993,843. Transformers. ELECTRIC & MUSICAL INDUSTRIES Ltd. Nov. 17, 1961 [Nov. 17, 1960], No. 39454/60. Heading H1T. [Also in Division G5] In a magnetic record/playback head, a gapless ferrite ring 4 completes the magnetic circuit between a pair of metallic polepieces 1 and at the same time acts as the core of a transformer. A single-turn primary (in the playback sense) winding 6 is wedge-shaped to fit closely up to the transducing gap 2 to reduce inward leakage flux. The secondary 8 is toroidally wound about the remaining available core perimeter and the assembly is locked in a holder 3 by resilient pads 9. In another embodiment (not detailed) the single-turn primary may be replaced by a plurality of single turns, mutually insulated one from another.
Patent GB-1070997-A (GB)
Title: Rotary cylindrical plug cocks
IPC: F16K5/10
Filed: 1965-09-15
Abstract: 1,070,997. Valves. A. G. MULLER. Sept. 15, 1965 [Sept. 17, 1964], No. 39461/65. Heading F2V. A cock has a barrel 1 closed by a spigot 6 and housing a component 7 that receives a hollowcylindrical plug 8 embodying a spindle 13 and formed with an open end 16 leading to one port 2 and a radial port 9 which upon rotation of the plug can be aligned with a second port 3 via an opening 10 in the component 7; an annular gap 11 is formed between the latter and the plug 8 and accommodates an 0 "-ring around the port 9. The inner end 17 of the plug is stepped and provided with sealing " 0 "-rings 21, 22 and flat washers 23, 24 of chromium steel or plastics; a screw 25 defines the open and closed positions of the plug. A rotatably-adjustable element 28 in the plug and rotatable therewith enables the size of the port 9 to be varied; a screw-driver slot at each end of the element 28 facilitates assembly and adjustment of the latter. The spindle 13 may be operated by a spanner after removal of a cap 35 or it may project through the latter and incorporate a handle.
Patent GB-852965-A (GB)
Title: Improvements in steam generator plants
IPC: F22B31/04
Filed: 1957-12-19
Abstract: 852,965. Steam generators. WALTHER & CIE A.G. Dec. 19, 1957 [Dec. 24, 1956], No. 39476/57. Class 51 (1). [Also in Group XIII] In a steam generator furnace having burners for gas and burners for pulverulent fuel and/or oil, the main gas burners discharge into combustion chambers and auxiliary gas burners and the pulverulent fuel or oil burners discharge into other combustion chambers so that when the furnace is burning only pulverulent fuel or oil, part of the heating surface is not used. Pulverulent fuel or oil burners 5 are directed downwardly from the roofs of lower combustion chambers 3 communicating with a secondary combustion chamber 4, and auxiliary gas burners 6 are arranged below the burners 5. The main gas burners 7 discharge into lateral chambers 8 separated from the secondary combustion chamber 4 by tube walls 9. The gas pass 12 containing two superheater systems 10, 11 leads to two parallel descending flues 13, 14 containing heat exchange surfaces and an economiser respectively. From the bottom of the flues 13, 14 the gases pass'to a gas preheater 20 or air heater 21, or both. For operation with gas, the burner gas is heated by an exchanger 24 serving to cool the superheated steam. For pulverized fuel operation the gas preheater 20 is not used and the upper combustion chambers 8 are not effective. In another embodiment, Fig. 2 (not shown), the oil or pulverulent fuel burners and the auxiliary gas burners discharge into the upper chambers 8, while the main gas burners discharge into the lower combustion chambers 3.