baber/WOPTO huggingface dataset:
Patent GB-1357475-A (GB)
Title: Packaging coffee
IPC: A23F5/10
Filed: 1972-03-22
Abstract: 1357475 Packages TETLEY Inc 22 March 1972 13507/72 Heading B8C A package 10 of at least partially de-gassed, ground, roasted coffee consists of a flexible plastics envelope 11 of a material more permeable to carbon dioxide than to oxygen and moisture, the coffee 13 within the envelope being surrounded by an atmosphere of at least carbon dioxide whose partial pressure is at least 80% that of the partial pressure of the carbon dioxide remaining in the coffee. The plastics material may be a laminate of polypropylene, polyethylene, polystyrene, polyester, polycarbonate; cellulose acetate, or vinyl, in a form of a tube which is transversely heatsealed.
Patent GB-548849-A (GB)
Title: Improvements in or relating to fastenings, particularly for cowlings, panels, cover-plates and the like
IPC: F16B5/10
Filed: 1941-10-21
Abstract: 548,849. Cowling &c. fastenings. TARRY, G., and CRIPPS, C. T. Oct. 21, 1941, No. 13510. [Class 44] A fastening for cowlings, panels, cover-plates and the like comprises a headed stud 1 rotatably carried in a disc 2 riveted to the cowling &c. 4 and having radial projections 7 (which may be the ends of a pin passed through the stud) adapted to pass through an elongated opening 8 in the support 6. On rotation of the stud, as by screw-driver applied to a groove 11a in the stud head, the projections engage and travel along the coils of a spring 5 which is thereby progressively compressed. One end of the spring is anchored at 10 to support 6 and the free end is formed as a hook 5b engaged by one of the projection 7 to limit rotation of the stud. Reference has been directed by the Comptroller to Specification 552.026.
Patent GB-135238-A (GB)
IPC: B23K11/31
Abstract: 135,238. Woodburn, R. F. Oct. 15, 1918. Drawings to Specification. Welding.-The pedal which operates a spotwelding apparatus closes a special switch in the welding circuit. Further depression of the pedal cuts the circuit, the work being still kept under pressure until cool.
Patent GB-1508716-A (GB)
Title: Clip for t-bar ceiling structures
IPC: E04B9/00
Filed: 1976-04-02
Abstract: 1508716 Clip S J WEISSMAN 2 April 1976 [7 April 1975] 13542/76 Heading E2B A clip comprises a single length of resilient wire shaped as in Fig. 1 and includes an upper portion 22 for engagement with a T- bar 42 and a lower portion 24 for engagement by an article to be suspended from the T-bar from hook 52. The clip is fitted to the T-bar, which supports ceiling tiles 48, by lifting the tiles 48 and engaging the respective angled sections 34, 36 of the upper portion of the clip over respectively opposite sides of the bottom T-bar limb 44. The lifted tiles are then replaced and tend to hold the clip in place on the T-bar. In order to support heavier articles without undue distortion of the clip a compression spring 54 (Fig. 3) may be located around sections 30, 32 of the clip by engaging the end coil 58 of the spring and rotating the spring to wind it onto the sections. A second spring may also be added inside the first one.
Patent GB-1074321-A (GB)
Title: Improvements in or relating to razor blades
Inventor: ARNOT RALPH MARK CAROL
IPC: B05D7/16
Filed: 1963-04-05
Abstract: A razor blade has on its cutting edge an adherent coating of a polymer of vinylic or ethenoid compounds containing siloxane groups attached indirectly to the chain.  The polymers may be those disclosed in Specification 803479; they may be copolymers with methyl methacrylate.  The coating may also contain alkyl or vinyl halosilanes or their carboxylates or esters, or an ethenoid or vinylic compound containing a polar group.  An intermediate layer of an alkyl or vinyl halosilane, carboxylate or ester or a long chain fatty acid or alcohol may be applied.  The blade may be pretreated by heating, etching or plating, coated with a dispersion or an organic solution of the polymer by dipping or spraying, or as in Specification 1,050,241, and finally again heated.
Patent GB-874700-A (GB)
Title: Cigarette-making machines feeding apparatus
Inventor: AHNE OTTO
IPC: A24C5/32
Filed: 1960-04-20
Abstract: 874,700. Cigarette-making machines. TABAHUND INDUSTRIEMASCHINEN DRESDEN VEB. April 20, 1960, No. 13759/60. Class 130. [Also in Group XXX] Cigarettes in hopper 1 are stirred by oscillating arm 6 and are discharged by smooth (or etched) rotating roller 3 into passageway 5, discharge being assisted by rotating roller 8. The cigarettes then fall down passage 9, their fall being accelerated by periodic air jet 12, and they are then fed by feed drum 11 on to grooved drum 13.
Patent GB-563996-A (GB)
Title: Improvements in or relating to the treatment of materials with bitumen or tar
IPC: D21J1/08
Filed: 1942-10-02
Abstract: 563,996. Fireproof and waterproof paper felt. PETZOLD, W. O. Oct. 2, 1942, No. 13854. [Classes 96 and 140] [Also in Group III] Fireproof bitumen- or tar-treated felt is made by treating cardboard felt with a water-soluble fire-proofing material and, simultaneously or subsequently, with an emulsion comprising the bitumen or tar and a fire-proofing material which is water-insoluble but soluble' in the bitumen or tar. Cardboard felt may be treated first with an aqueous solution of sodium borate and sodium phosphate with small proportions of glyceryl borate, and, if desired, of sulphonated castor oil or triethanolamine borate. Alternatively, the first treatment may be with an aqueous solution of the ammonium salt of dicresyl phosphoric acid. The felt is dried and further treated with an aqueous emulsion of bitumen or tar containing zinc or calcium dicresyl phosphate, or an alkyl, cresyl, or phenyl ester of phosphoric acid, e.g. tricresyl or triphenyl phosphate. The zinc or calcium dicresyl phosphate may be made in situ by heating the tar or bitumen with dicresyl phosphoric acid to obtain a homogeneous mixture, and slowly adding zinc or calcium hydroxide or carbonate. The resultant mixture is thinned with benzene, xylol, or naphtha, and emulsified by agitating with an aqueous dispersion of colloidal alumina and sodium or potassium silicate. Alternatively, an ester of phosphoric acid may be added to a benzene &c. solution of the bitumen or tar and the mixture emulsified with water with the aid of colloidal alumina, or of sulphonated castor oil to which borax may be added. Aqueous. sodium or potassium -silicate may be added to the completed emulsion. Cardboard felt may be treated in a single step with an emulsion of bitumen or tar containing both the water-soluble and the waterinsoluble fire-proofing materials, e.g. an emulsion made by dispersing a benzene solution of bitumen or tar and zinc or calcium dicresyl phosphate with an aqueous solution of sodium borate and sodium phosphate or with an aqueous solution of ammonium phosphate alone or with borax, with the aid of colloidal alumina. A number of pieces of treated felt may be bonded together by hot-pressing. Adhesives such as bitumen or tar, with or without stand oil or polymerized linseed oil, may be used.
Patent GB-677480-A (GB)
Title: Polymerization of normally gaseous olefines
IPC: B01J19/02
Filed: 1950-06-02
Abstract: In polymerizing normally gaseous olefins with concentrated liquid phosphoric acid in a polymerization zone presenting acid-resistant metallic surfaces, corrosion thereof is decreased by maintaining the concentration of phosphoric acid esters of olefins in the reaction mixture below 0.08 mol. per mol. of free phosphoric acid.  Ethylene, propylene, and butylenes may be polymerized with phosphoric acid of above about 90 per cent, calculated as ortho acid, at 150-450 DEG F., above 100 p.s.i.g., and space velocities above 0.5 vol. liquid olefin/vol. catalyst/hour. Ester concentration gradually increases to an equilibrium value. The mixture of acid and hydrocarbons leaving the reactor is stratified, the hydrocarbon being neutralized and utilized for motor fuel while the acid layer is recycled after part thereof is heated to about 500 DEG  F., if desired at atmospheric or lower pressure, to decompose contained esters.  Ester concentration may also be controlled by reducing the olefin feed rate which is ordinarily 0.5-20 v./v./hour, to a figure within this range to bring the concentration below 0.08 mol./mol. acid. Alternatively, or additionally, temperature may be raised to decrease the ester concentration.  The relation between ester concentration and corrosion rates of silver and a high nickel, molybdenum, iron alloy is illustrated using an initial acid of 103 per cent, calculated as orthophosphoric, and temperature of 300 DEG  F., with a feed containing 28-45 per cent propylene. Corrosion rates of high chrome-nickel austenitic alloys and copper are also given.
Patent GB-138826-A (GB)
Abstract: 138,826. Johnson, L. Aug. 29, 1919. Drawings to Specification. Indicating.-A suspension for a galvanometer or other instrument consists of a phosphor-bronze or other metal strip having hardened bands or ribs produced at right-angles to its length by cold working between ribbed or toothed rolls. The strip is then waved or crimped across its width. The ribs or bands may be in herring-bone formation.
Patent GB-769977-A (GB)
Title: Improvements in or relating to combined silencers and air filters for motor-cycle engines
IPC: F02M35/14
Filed: 1955-05-13
Abstract: 769,977. Intake silencers. KNECHT, A. May 13, 1955 [May 14, 1954], No. 13912/55. Classes 7 (2) and 7 (3). [Also in Group XXVIII] A combined silencer and air filter for motorcycle engines comprises a casing in two parts 5, 6 held together by quick-acting clamps 15, one of the parts acting as a silencer, and an annular filter insert 1 of paper folded to form radially-disposed pleats, the periphery of the filter being protected by an annular, metal sleeve 3 having turned-over edges 2, and the central opening of the filter being closed by an insert such as a cap 10, or a plug of paper. As shown in Fig. 1, the filter is gripped between the silencer part 5 and the cover 6 which is provided with openings 9 the flow of air through which is controlled by an apertured plate 8 rotatable by a handle 7. A funnelshaped part 11 carrying a tube 13 provided with rows of holes 12 guides the air into the part 5, the air leaving the latter via a pipe 14. In modifications (a) the cover 20, Fig. 4, forms, together with an insert 21, an air duct 22 acting as a silencer, and (b) the bowlshaped, lower part 26, Fig. 5, of the casing in conjunction with the space between the top surface of the filter 1 and apertured choke disc 31 acts as a silencer.
Patent GB-1287689-A (GB)
Title: Valve spring processing
IPC: C21D9/02
Filed: 1970-03-23
Abstract: 1287689 Making coil springs; altering physical structure FORD MOTOR CO Ltd 23 March 1970 [21 April 1969] 13913/70 Headings B3A and B3V [Also in Division F2] An internal combustion engine valve coil spring having resistance to relaxation is formed by tempering hardened SAE 1070 steel wire at about 700‹ F. to a hardness of R c  50-51, coiling the wire about a mandrel to produce a coil spring having a larger diameter than the final spring and stress relieving the spring at a temperature higher than the tempering temperature to cause the spring to reduce in diameter and in hardness to a value not less than R c  47. The stress relieving temperature is preferably 775‹ F.
Patent GB-566467-A (GB)
Title: Improvements in gaskets
IPC: F16J15/12
Filed: 1943-08-27
Abstract: 566,467. Gaskets. YATES, C. H. Aug. 27, 1943, No. 13972. [Class 122 (iii)] A gasket comprises a sheet of asbestos &c. in ring or loop form, covered completely by two thin metal blanks each covering one flat side of the sheet and one extending over the outer peripheral edge and the other over the inner edge, the two blanks overlapping on both the flat sides. A ring of asbestos &c. is laid on a ring-shaped tray 12 of sheet metal, the outer edge is turned up along the edge of the asbestos &c. and over its upper face at 15. A second sheet metal plate 18 is laid over the asbestos &c., its inner edge being pushed through the ring over its inner edge and bent to overlap the inner edge of the lower sheet. The whole is pressed flat, and bolt holes are pierced in corresponding lugs in the metal sheets.
Patent GB-651489-A (GB)
Title: A shock absorber for motor cars or other spring suspended vehicles
IPC: B60G13/04
Filed: 1948-05-25
Abstract: 651,489. Shock-absorbers. ADAMSON, S. B. May 25, 1948, Nos. 14082 and 23335. [Class 108(iii)] A shock-absorber for vehicles mounted on springs comprises a casing rigidly fixed to the chassis of the vehicle, upper and lower leaf springs mounted in the casing and a pivot member between the leaf springs and connected to the wheel axle so that movement of the wheel axle rotates the pivot member to deflect the leaf springs. In the arrangement shown, a shallow casing 1, adapted to be secured to a vehicle, chassis, houses two sets of flat leaf springs 5, 5, the ends of which bear in steel lined recesses 7, 7. A pivot member 3, carried on an axle 4 in bearings in the casing 1 and a cover plate is pivotally connected, outside the casing, to a wheel axle, so that the relative movements of the axle and chassis deflects one or the other of the leaf springs 5. A spiral spring 6, bears on each leaf spring 5, through a disc having a diametrically raised portion which bears over the full width of the leaf spring. The connection between the pivot member and the wheel axle, comprises a lever rigidly secured at one end to an extension of the axle 4 and lying parallel to the pivot member and pivotally connected at its other end to a connecting rod. The lower end of the connecting rod is forked to pivotally engage a sleeve which is secured through a rubber bush and a bolt, to the wheel axle, the bolt projecting from a plate secured to the axle and lying parallel thereto. The lower springs in the casing may be stiffer and the space they occupy, smaller than that for the upper springs in order to check recoil. According to the first Provisional Specification the connecting rod may constitute a rod which is screwed into an upper tubular part, to render the length of the connecting rod adjustable. The pivot member may be mounted with its axle to the right or left hand end of the casing, the lever being formed for use in either position. According to the second Provisional Specification the pivot member is formed as a substantially oval member) pivoted about its centre in bearings in the casing and cover and disposed centrally of the length of the upper and lower leaf springs. The connecting rod is made adjustable in length by being formed as two oppositely threaded rods connected together by a screwed sleeve.
Patent GB-403870-A (GB)
Title: Improvements in and relating to pipe or tube connections
IPC: F16L19/12
Filed: 1933-05-16
Abstract: 403,870. Tube joints. KREIDEL, H., 6, Moritzstrasse, Wiesbaden, Germany. May 16, 1933, No. 14178. Convention date, Nov. 28, 1932. [Class 99 (i).] A tube b is jointed in a fluidtight manner to a connector a by a metallic packing ring c which is compressed by a nut d screwing onto said connector. The packing ring is normally a loose fit on the tube and is provided at its inner end with a recess g forming one or more steps c<2> ; the other end h may be shaped in a similar manner, but preferably it is made of somewhat larger diameter than the body of the ring and is conically tapered. The opening f in the connector is funnel-shaped, and the surface of the nut d abutting against the packing ring is either spherical or conical. The construction is such that upon tightening the coupling nut the packing ring is moved axially towards the connector, whereupon the thin-walled portion c<1> of the ring is bent inwardly to conform to the surface f and the step c<2> digs deeply into the surface of the tube ; the end h of the ring is also deformed to grip the tube. The recess of the packing ring may locate a second packing ring k of hard or soft material.
Patent GB-635757-A (GB)
Title: Process for the manufacture of hydrocarbon polymers
IPC: C08F36/04
Filed: 1946-05-10
Abstract: Cyclopentadiene or a homologue is polymerized by cooling to between 0 DEG  and - 195.8 DEG  C., preferably - 40 DEG  and - 164 DEG  C., and adding a Friedel-Crafts catalyst.  The cooling may be effected by admixture with liquid ethylene, ethane, or propane or solid carbon dioxide.  The catalyst, if solid, e.g. aluminium chloride, is dissolved in a non-complex-forming solvent such as ethyl or methyl chloride, ethylene dichloride, chloroform, carbon disulphide and liquid ethylene, ethane, propane and butane.  Fluid catalysts, e.g. boron trifluoride and titanium tetrachloride, are used directly. Homologues of cyclopentadiene include methyl, ethyl and propyl mono- and poly-cyclopentadienes.  The products are rubbery to resinous, are soluble in hydrocarbons, e.g. benzene, and are capable of reaction with atmospheric oxygen or vulcanization with sulphur and other agents.  They may be mixed with pigments and fillers such as ground cork, wood flour and cotton linters, and used in the production of floor tiles, linoleum substitutes, lacquers and moulded articles generally.  Specifications 611,255 and 611,256 are referred to.
Patent GB-499707-A (GB)
Title: Piezo-electric vibration systems
IPC: H03H9/05
Filed: 1938-05-13
Abstract: 499,707. Piezo - electric crystals. STANDARD TELEPHONES & CABLES, Ltd. May 13, 1938, No. 14357. Convention date, May 14, 1937. [Class 40 (v)] Additional masses 2, 3, Fig. 2, are clamped to two opposite faces of a crystal 1 to modify its natural frequency. The masses may be of metal such as steel, aluminium or those known under the Registered Trade Marks "Elinvar" and "Invar" and the frequency may be adjusted by altering the amount of an additional piece of solder &c. 4 fixed to the member 2. The masses 2, 3, Fig. 3, are cylindrical and threaded reversely to be engaged by a clamping ring 8, or they may be flanged as shown in Fig. 4 and pressed on to the crystal 1 by rings 7 over which the clamping ring 8 is threaded. The ring 8 may be provided with fixing lugs. A spring mounting enabling the pressure of the masses on the crystal to be varied may be provided. The Specification as open to inspection under Sect. 91 comprises also a "transformer" wherein several crystals separated by conducting or non-conducting discs are provided. It is also stated that the masses may be cemented to the crystal. This subject-matter does not appear in the Specification as accepted.
Patent GB-554861-A (GB)
Title: Work table with sine bar adjustment
IPC: B23Q1/54
Filed: 1941-11-10
Abstract: 554,861. Work-holders. PAPWORTH, Ltd., and SEALEY, L. E. Nov. 10, 1941, No. 14436. [Class 83 (iii)] A work table b is mounted so that it is rotatably adjustable about its own axis and also has compound adjustments about two other mutually perpendicular axes, the latter adjustments being determined by sine bars. The base plate e carries a pillar 51 carrying the pivot pin d of a swingable shaft c. The compound adjustments are made about the axes of members c, d, respectively, the table being carried by a support a having hangers embracing the shaft c, the outer end of which is supported in a block g connected to a linkage system associated with an arm a<SP>1</SP>, the link system being clamped in any adjusted position, Fig. 2, by a pin z. Stop members on the base coact with stops j, jl, k on the support a to determine datum positions of the table. A sine bar f<SP>1</SP> may be attached at either side of the pin d or to an extension c<SP>2</SP> concentric with shaft c but fixed to support a. The table periphery is graduated, Fig. 1, and has pairs of slots which in the zero position are respectively parallel to the centre lines of members c, d. The angular table position on the support a is secured by a clamping band controlled by a screw p. The stops j, n, Fig. 6, determine a table adustment of 45 degrees about the shaft c while a swing of 90 degrees in the opposite direction is determined by stops k, l. Horizontal positions are obtained by the use of abutment slips such as h, Fig. 10. If an adjustment about axis of pin c is required the sine bar f<SP>1</SP> is mounted on extension c<SP>2</SP> and set horizontally, Fig. 10, by the use of a predetermined abutment g<SP>1</SP>. Angular settings are now made by building up the abutment g<SP>1</SP> by gauge strips to a height determined from sine bar tables and setting the table so that the disc d<SP>1</SP> again rests on the abutment. The table is then clamped to shaft c. For adjustment about axis of pin d the sine bar is mounted at either end of said pin and the required gauge blocks placed on the base abutment h<SP>1</SP>.
Patent GB-844507-A (GB)
Title: Improvements in roller hearth furnaces
IPC: F27D3/02
Filed: 1958-05-06
Abstract: 844,507. Roller way conveyers. OFU OFENBAU-UNION G.m.b.H. May 6, 1958 [May 16, 1957], No. 14462/58. Class 51 (2). Alternate rollers 2, 3 of a roller way conveyer in a furnace are mounted at opposite sides of the furnace to project across the full width of the furnace in overhung manner. The rollers can be closely spaced while still allowing buttresses 10 for the furnace walls between the bearings 6. The rollers may carry collars 20, 30, Fig. 3, the collars on alternate rollers interengaging. The rollers are of tubular, non-cooled construction, and the thickness of the tube walls decreases towards the free end of the roller.
Patent GB-365932-A (GB)
Title: Improvements in and relating to jigger conveyors
IPC: B65G27/00
Filed: 1931-05-15
Abstract: 365,932. Jigging conveyers. EICKHOFF, A., 176, Hunscheidtstrasse, Bochum, Germany, (trading as EICKHOFF MASCHINENFABRIK UND EISENGIESSEREI GEB.). May 15, 1931, No. 14493. Convention date, Oct. 6, 1930. [Class 78 (i).] In a jigging conveyer the trough sections of which are provided with running rollers mounted on axle pins in U-shaped housing or forked bearing members secured to the trough, each forked bearing member a is bracketshaped and is adapted to the shape of the trough in such manner that the part f<1> fits against the wall of the trough and the flangelike projection f<2> bears against the bottom of the trough. The outer surface of the bearing member is smooth and extends so far beyond the edge of the trough that the trough can be stood on either edge on the outer side on the bearing member and slid along. The axle pin b abuts at its inner end against a shoulder d on the housing and is kept in position by a pin c. Triangular plates or discs s of soft material are inserted between the bearing member and the roller r to take up wear and to enclose the roller bearing w. The hub of the roller and the pin b may be hardened.
Patent GB-596813-A (GB)
Title: Improvements in or relating to screens for viewing projected optical images
IPC: G03B21/625
Filed: 1945-06-08
Abstract: 596,813. Copying by milling. CINEMATELEVISION, Ltd., and LANCE, T. M. C. June 8, 1945, No. 14544. [Class 83 (iii)] [Also in Group XX] The Specification describes a method of cutting a series of prismatic grooves, in the form of a continuous spiral to act as a Fresnel type lens, on the face of a sheet of transparent material such as known under the Registered Trade Mark " Perspex." The sheet 9 is rotated by a shaft 10 by which also, through bevel gearing 13, the rotating milling cutter 11 is advanced in a guide 14. The cutter shaft is also supported by a block 16 carried in an inclined guide 15 to control the angle of the groove as the radius increases. Specification 606,010, [Group XX], is referred to.