baber/WOPTO huggingface dataset:
Patent GB-472202-A (GB)
Title: Improvements in the manufacture of keys for preserve cans
IPC: B21F45/00
Filed: 1936-10-22
Abstract: 472,202. Making can-opening keys. AKTIEBOLAGET TRANSITORIA. Oct. 22, 1936, No. 28750. Convention date, Oct. 22, 1935. [Classes 83 (ii) and 83 (iv)] Keys with a splayed handle 2, shank 1, and tearing head 5 for opening cans, Fig. 1, are made from wire fed intermittently by rollers 42, and ratchet mechanism 57 from a shaft 24. The forming mechanism comprises a fixed lower die 10 and an upper die 12 reciprocated by a slide 21 operated by a crank 27. The wire is fed through three stations. At the first, Fig. 6, dies 81, 82 roughly shape a groove 4 in the tearing end of the key, Fig. 1, a die 87 imprints a legend upon the shank, and dies 88 flatten the handle part 2 of the shank. At the second station, pivoted dies 101 are closed by rollers, Fig. 10, not shown, to complete the groove 4, spring-urged pressers and shear-blades 125, cooperate to bifurcate and sever one limb of the handle end of the wire whilst it is positioned by spring-pressed pins 93 shaped to allow the flattened part of the wire to pass when the die is raised. 'At the third station the wire is held by members 81b engaging the groove and by shaped pins 136, and the split end of the key is splayed about rollers 141 by a wedge-shaped member 157 on the slide 21. A blade 148 on the die 10 cooperates with a blade 149 on the die 12 to sever the leg. The key is then clamped by members 165 engaging the groove and a pivoted arm 173 carrying a roller 174 is swung by a roller 153 to make the bend in the body of the key.
Patent GB-671229-A (GB)
Title: Improvements in lubricating arrangements for internal combustion engines
IPC: F01M1/02
Filed: 1949-11-10
Abstract: 671,229. Force-feed lubricating. STIHL, A. Nov. 10, 1949 [May 31, 1949], No. 28823/49. Class 12 (iii). [Also in Group XXVIII] A rotary cylinder 4 is disposed in a casing 1, and has a central transverse bore 3 containing a piston 5 which supplies lubricant to the main bearings, and an eccentric axial bore containing a piston 10 which supplies consumable lubricant to the engine cylinders. The head 11 of the piston 10 engages a fixed cam 13 on a cylindrical sleeve 14 which also carries an eccentric pin 19 which engages a groove in the piston 5. As the cylinder 4 rotates, the cam 13 and pin 19 cause reciprocation of the pistons 10, 5. The stroke of the pistons may be varied on rotation of the sleeve 14 by means of a lever 18 secured thereto.
Patent GB-464439-A (GB)
Title: Improvements relating to coin testing and selecting devices
Filed: 1935-10-18
Abstract: 464,439. Testing and sorting coins. SCHNEIDER, R., and WESTINGHOUSE TICKET MACHINE CO., Ltd. Oct. 18, 1935, No. 28868. [Class 27] In a coin testing and selecting device for separating coins of one diameter from those of a smaller diameter in coin-freed apparatus, change-giving machines, and the like, the coins 6, 7, Fig. 2, roll in single file along the base 5 of a cavity 2 in a downwardly and laterally inclined guide member 1, the lower side of the cavity having a recess 3 against the upper and lower edges 4, 8 of which the largest diameter coins 7 abut during their passage. The smaller diameter coins 6 tilt about the corner 9 of the edge 8 and drop through an opening 11 in the base 5 to a second inclined cavity 12 which leads to a receptacle for the smaller coins. The tilting of the coins is permitted by a recess 10 formed in the upper wall of the cavity 2 at the base thereof.
Patent GB-648282-A (GB)
Title: Improvements relating to suction cleaners
IPC: A47L9/32
Filed: 1947-10-29
Abstract: 648,282. Suction cleaners. HOOVER, Ltd. Oct. 29, 1947, No. 28873. Convention date, Oct. 30, 1946. [Class 8(i)] In a suction cleaner of the type compris ing a tubular casing 10 containing a filter 14 and a suctior creating unit, e.g. a motor driven fan for drawing air through an opening 13 in one end to pass it through the filter and then through ar opening in the opposite end, and a hose 16 for attachment to either opening, one end, e.g. the inlet end is provided with a cap 12 having in one part 46 of its end face a socket 48 to receive .a hose coupling and spaced from another part 49 a handle 53 to allow the cleaner to be carried in a vertical position. The hose coupling is as described in Specification 648,283. The cap 12 is detachably secured to the casing 10 by a toggle latch comprising a foot- or hand-operated lever 15 pivoted to the cap at 59 and a hook link 64 pivoted to the lever 15 at 65 and engaging a wire loop 86 secured to the casing. The lever 15 is housed in a handle recess 58 and held against accidental displacement by a leaf-spring 62. In operation the lower portion of the cap 12 is first withdrawn free of the casing 10 and then a hook 70 is disengaged from a recess 83 at the top of the casing. A second handle for carrying the cleaner horizontally is located at the 'casing top.
Patent GB-1119343-A (GB)
Title: Method for the production of acid protease of high ability to solubilize so-called insoluble collagen
IPC: C12N9/58
Filed: 1965-07-07
Abstract: A method for the production of an acid protease comprises cultivating a strain of Penicillium spinulosum T-4 (ATCC No. 16348), P. frequentans 47-4 (ATCC No. 16349), P. frequentans 7-5 (ATCC No. 16350) or P. citreoviride 36-7 (ATCC No. 16351) in a culture medium and recovering the acid protease, said acid protease having optimum pH values of about 2.4 and about 3.2 for milk casein and being able to solubilize insoluble collagen.  A preferred nitrogen source for the culture medium is wheat bran; the addition of monopotassium phosphate and calcium or magnesium salts improves the yield.  The enzyme may be salted out with ammonium sulphate and purified by ion-exchange chromatography.
Patent GB-1291038-A (GB)
Title: A process for etching chromium
Inventor: SKARVINKO EUGENE ROMAN
IPC: G03F1/80
Filed: 1971-06-21
Abstract: 1291038 Etching INTERNATIONAL BUISNESS MACHINES CORP 21 June 1971 [2 Sept 1970] 28905/70 Heading B6J A process for etching Cr comprises exposing the Cr to an etching solution containing Ce IV ions and ferric ions. The chromium may be vacuum deposited onto glass, covered with photoresist, selectively exposed, developed and etched using a solution of 1 to 4% by weight of cerric sulphate, 0.8 to 3% ferric sulphate and enough acid to give a pH value less than 2.0 and preferably less than 0.2. The acid may be nitric, hydrochloric, sulphuric, perchloric or acetic. Other ferric and ceric salts may be used such as ceric ammonium nitrate. The resultant chromium film mask on the glass may be used in the photofabrication of a semiconductor device.
Patent GB-280891-A (GB)
Title: Improvements relating to calculating machines
IPC: H04L17/00
Filed: 1927-10-31
Abstract: 280,891. Rheinische Metallwaaren-und Maschinenfabrik Sommerda Akt.-Ges. Nov. 18, 1926, [Convention date]. Calculating-apparatus; keys.-The keys of a calculating-machine are constructed in such a way as to permit further movement thereof for the purpose of closing an electric circuit to a typewriter or punching- machine; upon release of the finger pressure the circuit is broken but the key remains set for subsequent control of the calculating-machine. In the form shown in Figs. 1 and 2, the key is constructed of two parts, namely, a stem 13 and a head 15 which are relatively slidable and are maintained extended by an interposed spring 16 with a limiting screw and notch 22. When the key is fully depressed the spring is contracted and the head engages a pivoted rail 1 to close contacts 7. 8 in the circuit of an electromagnet 11 adapted to operate the corresponding digitrecording means of the typewriter or other machine. When the finger is removed from the key, the head 15 rises but the stem remains locked down by the usual detent plate 19. In the modification shown in Fig. 5, the key is in one piece but the detent notch 18 is lengthened to permit partial return of the key after closure of the circuit.
Patent GB-775376-A (GB)
Title: Process for the preparation of aminoalkyl ethers
IPC: C07C209/68
Filed: 1954-10-08
Abstract: Tertiaryaminoalkyl ethers of the formula: <FORM:0775376/IV(b)/1> wherein Z is a substituted or unsubstituted phenyl radical or an alkyl radical of 1-5 carbon atoms and R is an alkylene group of 1-5 carbon atoms are made by treating an amine of the general formula: <FORM:0775376/IV(b)/2> wherein M is a primary or secondary amino group with an alkylating agent.  When Z is a phenyl group suitable substituents are alkoxy groups or halogen atoms.  Suitably the alkylation may be effected by formaldehyde in the presence of formic acid, or by means of a dialkyl sulphate or mixture of dialkyl sulphates, such as dimethyl or diethyl sulphate, or by reaction with formaldehyde or hexamethylene tetramine in the presence of active hydrogen or compounds, metals or metal alloys evolving active hydrogen, e.g. by means of electrolytic hydrogen, nickel, for example Raney nickel, alloys such as Devarda alloy or metal hydrides such as lithium aluminium hydride.  The amines of the formula II are prepared by condensing an aralkyl halide of the formula: <FORM:0775376/IV(b)/3> where X is a halogen atom with an alkali metal salt of an aminoalkanol or with an aminoalkanol in the presence of an acid binding agent.  In examples: (1) diphenyl bromomethane is reacted with the sodium compound of ethanolamine to give aminoethyl benzhydryl ether which is treated with formic acid and formaldehyde to give dimethylaminoethyl benzhydryl ether; (2) diphenyl bromomethane is reacted with the sodium compound of methyl ethanolamine and the resulting methylaminoethyl benzhydryl ether is alkylated with dimethyl sulphate to give the product of (1); (3) aminoethyl benzhydryl ether (prepared as in (1)) is alkylated with diethyl sulphate to give diethylaminoethyl benzhydryl ether; (4) diphenyl bromomethane is reacted with the sodium compound of n-propyl ethanolamine and the resulting b -n-propylaminoethyl benzhydryl ether is alkylated with formic acid and formaldehyde to give b -n-propylmethylaminoethyl benzhydryl ether; (5) n-butyl ethanolamine is reacted with diphenylbromomethane in the presence of sodium carbonate and the resulting b -n-butylaminoethyl-benzhydryl ether is alkylated with diethyl sulphate to give n-butylethylaminoethyl benzhydryl ether; (6) an isobutyl phenyl methyl bromide is reacted with the sodium compound of ethanolamine and the resulting b -aminoethyl isobutyl-benzyl ether is alkylated with dimethyl sulphate to give dimethylaminoethyl isobutylbenzyl ether; (7) b -aminoethyl benzhydryl ether (prepared as in (1)) is alkylated by treatment with formaldehyde and hydrogen in the presence of Raney nickel to give the product of (1) and (8) b -n-propylaminoethyl benzhydryl ether (prepared as in (4)) is alkylated by treatment with formaldehyde and hydrogen in the presence of Raney nickel to give the product of (4).
Patent GB-483916-A (GB)
Title: Improvements relating to identification devices for keys
IPC: E05B19/24
Filed: 1936-10-27
Abstract: 483,916. Key labels. STEVENSON, J. T., and McGOWAN, J. Oct. 27, 1936, No. 29117. [Class 73] An identification device for a key consists of a disc or plate 1 having a peripheral flange 3 with an inturned edge 3a which allows it to be snapped on to the key head. The flange is gapped at one point 5 to receive the neck of the key. The device may be coloured or formed with embossed distinguishing marks. According to the Provisional Specification, the device may be formed of rubber, synthetic resin or like mouldable material, leather or other suitable material.
Patent GB-604395-A (GB)
Title: Improvements relating to the cracking of hydrocarbons
IPC: B01J27/06
Filed: 1945-11-02
Abstract: Hydrocarbons are cracked in the presence of a catalyst comprising hydrogen fluoride promoted with less than 50 mol. per cent of boron trifluoride.  The charge may be a pure hydrocarbon, but is generally a mixture such as naphtha, or kerosene, or gas oil, or Fischer-Tropsch stock.  The mixture should be relatively low in aromatics for the latter form complexes with the catalyst; but a small amount of olefins is beneficial since it promotes the catalyst. In a preferred method of carrying the process, the hydrocarbons in the liquid state, mixed if desired with butanes, are treated with the liquid catalyst at a temperature between -10 DEG  and +450 DEG  F. under a pressure from atmospheric to at least 1000 lbs. sq. inch.  In vapour phase cracking, the temperature is preferably within the range of 100 DEG  to 900 DEG  F.  The process may also be conducted so that the hydrocarbons are in the liquid phase and the catalyst is in the vapour phase.  The reaction may be carried out batchwise in an autoclave equipped with an agitator, or it may be carried out continuously in a three-stage mixer.  In an example, a dearomatized kerosene was treated, at 90 DEG  F. and under a total pressure of 185 lbs./sq. inch, with 89 per cent by volume of hydrogen fluoride containing boron trifluoride in an amount to yield a partial pressure of 150 lbs./sq. inch.  After about 2 hours, two layers separated and the upper yielded 30 per cent gasoline (based on the kerosene cracked), above 34 per cent isobutane and less than 2.5 per cent n-butane, propane and lower products.  The product in the lower layer, upon separation from the catalyst, was a drying oil capable of drying to a hard finish. Specification 604,377 is referred to.
Patent GB-293481-A (GB)
Abstract: 293,481. Franklin, C. S., and Whistlecroft, A. W. April 6, 1927. Systems, electric.-For preventing interference with wireless receiving apparatus, a choke coil is connected in series with, and adjacent to, each sparking plug, or it may be incorporated therein. The coil may consist of 45 turns wound in a groove 5 formed in insualting material; that, for example, known under the Registered Trade Mark " Bakelite. " The ends of the coil are soldered to pins 9 making connection with the cable 3 and the terminal 7. The body 1 is internally threaded to engage the cable 3, and a cover 6 surrounds the groove, 5 and the coil contained therein. When using a jump-spark distributor an additional choke may be placed between each distributor segment and the cable leading to the associated plug.
Patent GB-1154404-A (GB)
Title: Method Of and System For Remote-Location Computer Communication
IPC: G06F3/16
Filed: 1967-06-26
Abstract: 1,154,404. Automatic exchange systems. BOLT, BERANEK and NEWMAN, Inc. 26 June, 1967, No. 29371/67. Heading H4K. A central computer is programmed by remote dialling from a conventional telephone substation. As shown a computer 2 is linked to the Line L of a local substation C as at C<SP>1</SP> through a coupling circuit 5. The computer includes a relay associated with a register, 2<SP>111</SP>, which can complete a D.C. loop over the conductors of a coaxial cable 4 and windings 12 and 12<SP>1</SP> of a transformer in the coupling circuit and thus effectively lift the receiver C in the event of a call from a remote station such as A. An initial message from a tape unit 6 is transmitted over a co-axial cable 8 and via the transformer to line and the remote station. Following this initial message the remote station A may dial programming digits, the dial pulses of which pass to the line L of the station C and thence over the transformer to a pulse generator 9 which repeats them to the computer. A spoken designation of each character dialled is selected from a magnetic drum and retransmitted to the substation A and the eventual result of the computation may be similarly transmitted.
Patent GB-686490-A (GB)
Title: Coloured rutile boules and a method for making the same
IPC: C30B29/26
Filed: 1950-11-30
Abstract: 686,490. Gems. TITAN CO., Inc. Nov. 30, 1950 [Dec. 21, 1949], No. 29398/50. Class 43. A coloured rutile single crystal boule contains as colouring agent an oxide of vanadium, chromium, manganese, iron, cobalt or nickel. The boules are produced and re-oxidized by the methods described in Specification 664,889, a small amount of colouring agent, e.g. not more than about 0.1 per cent. in most cases, being mixed e.g. by dry blending with the finely divided TiO 2  starting material. Depending upon the kind and amount of colouring agent used, boules ranging in colour from pale yellow, through amber to red, and brownish red to black, may be produced; a table showing the various amounts of each element needed to produce the different colours, and also the preferred upper limits of the amounts to be used, is included in the Specification. If amounts somewhat in excess of said preferred upper limits are used, the boule may develop an outer skin in which most of the excess is concentrated; too great an excess results in unsatisfactory boules. A table stating the different colour and other effects resulting from the use of cobalt or iron in excess of the preferred upper limits is also included in the Specification.
Patent GB-911093-A (GB)
Title: A new or improved trepanning tool
Inventor: STOKES FREDERICK WILLIAM
IPC: B23B51/04
Filed: 1958-09-13
Abstract: 911,093. Drills. BROOKE TOOL MANUFACTURING CO. Ltd., and C.D. PATENTS Ltd. Dec. 10, 1959 [Sept. 13, 1958], No. 29398/58. Class 83 (3). A trepanning-tool comprises two or more tubular members 10, 11 coaxially located by members 14, 16, and cutting portions 12, 13 which may be integral with the members or may be insertsbrazed to the members. In a modi. fication, the inserts are secured to holders which are releasably secured to the members 10, 11. Specification 911,094 is referred to.
Patent GB-778847-A (GB)
Title: Improvements in and relating to tooth-paste compositions
IPC: A61Q11/00
Filed: 1955-10-14
Abstract: A tooth paste composition comprises a concentrated solution of sodium chloride admixed with precipitated hydrated silica, the silica comprising 10-40 per cent by weight of the composition. The silica may be produced by reaction between aqueous solutions of hydrochloric acid and sodium silicate, but should have a particle size of less than 1/100 of a millimetre.  The paste, in which the concentration of the sodium chloride may be as great as 20 per cent by weight or more, may also contain glycerine; calcium carbonate or calcium triphosphate; petroleum jelly; paraffin; perfumes and colouring agents.
Patent GB-1191273-A (GB)
Title: Improvements in or relating to Treatment of Metals
Inventor: COBB HAROLD RALPH WILLIAM
IPC: C22F1/00
Filed: 1966-06-30
Abstract: 1,191,273. Altering physical structure. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 27 June, 1967 [30 June, 1966], No. 29538/66. Heading B3V. [Also in Division C7] A metal, e.g. 20 Cr/25 Ni stainless steel tube for a nuclear fuel can, is worked to produce a varying amount of strain hardening throughout the cross-section and heat treated to produce a fine grain size, e.g. 7-12Á, at the surface and a coarser grain size, e.g. 25-50 Á, in the interior. In one embodiment, the tube wall thickness is reduced by 50% by external swaging using an internal mandrel and annealed at 800‹ C. for 80 hours or at 950‹ C. for 10 minutes, and then at 1050‹ C. for 10 minutes. In another example, the tube is internally swaged and annealed at 950‹ C. for 30 minutes. The tube may alternatively be worked by machining.
Patent GB-908960-A (GB)
Title: Alkaline rearrangement of alkylalkoxysilanes
IPC: C07F7/18
Filed: 1961-08-16
Abstract: Methyl trimethoxy silane is converted to dimethyldimethoxy- and/or trimethylmethoxysilane by reacting above 200 DEG C. with an alkali metal or an alkali metal oxide, methoxide, silanolate or salt of a siloxanol in an amount of from 0,1 to 20 parts by weight per 100 parts of silane.
Patent GB-422297-A (GB)
Title: Improvements relating to steam engine cylinder castings
IPC: F01B17/04
Filed: 1933-10-26
Abstract: 422,297. Steam-engine cylinders. LINDARS, H., 54, Victoria Street, London. Oct. 26, 1933, No. 29685. [Class 122 (i)] [See also Group XXXI] An integral casting for steam engines, in which poppet or like valves are used, comprises two cylinder bores a, a, steam inlet passages e for each cylinder communicating with valve chambers m at opposite ends of each cylinder, a common exhaust passage r, and a chamber s extending transversely across both cylinders for housing the valve operating mechanism. Fig. 2 shows a section on the L.H. side across the middle of the cylinder length and on the R.H. side across the valve space. Fig. 4 a section at 4-4 of Fig. 2. The passages e for each cylinder have central steam openings o and they may be interconnected by transverse passages v, v. The walls c and the flanges f are arranged for attachment to the frame plates of, for example, the undercarriage of a locomotive. A saddle portion p, p<1> is also provided as a seating for a boiler or smoke box. Specification 22107/07, [Class 122], is referred to.
Patent GB-895318-A (GB)
Title: Improvements in torque spanners
IPC: B25B23/143
Filed: 1959-08-31
Abstract: 895,318. Wrenches. TUCKER & BATT Ltd., and FORD, A. M. Aug. 31, 1960 [Aug. 31, 1959], No. 29693/59. Class 61. In a torque indicating spanner a bending movement caused between opposite ends upon loading is utilized to move a wiper contact over one or more resistances in an electrical circuit including an indicator, e.g. an ammeter. As shown in Fig. 1 (Provisional Specification) the head 5 of a spanner is connected by a shank 6 to a handle 7, the shank having a degree of flexibility due to reduction in its cross-sectional area relative to the head and handle so that when loading is applied there is a tendency for the shank to assume an arcuate shape. The shank has secured thereto a wiper blade 8 which upon application of the bending movement is moved in one direction or the other to slide over one or other of a pair of resistances 9 which are secured to the casing 10 of the spanner. Cables 17 from each resistance 9 extend through passages provided in a spacing member to a source of electric battery in circuit with an ammeter. The circuit of the meter may take the form of valve voltmeter, cathode tube indicator, neon indicator or audible indicator. In a modification, Fig. 1, the handle 7 is formed in two parts connected by bolts to form a casing. The head 5 is positioned between extensions of the handle by a stud 25 which extends through slots 25a and allows sliding movement between the head and handle. A rubber sleeve 26 surrounds the end of the handle. The enlarged end of the stem part 20 of the shank is secured to the handle 7 by screw studs. The resistances 9 are secured to the enlarged end of the stem. The blade together with the wiper contact is secured to the under side of the stem 20. The head 5 is slit centrally to receive a plate which divides the head into two parts presenting nut sockets of different dimensions.
Patent GB-185046-A (GB)
Title: Improvements in hand ramming foundry moulding machines
IPC: B22C19/02
Filed: 1921-11-08
Abstract: 185,046. Pritchard, P. Nov. 8, 1921. Moulding-machines. - In hand-ramming machines, of the kind in which the moulding. box is carried on supports adjustable in distance to suit boxes of different size, and the patternplate is carried on a support which is movable in a vertical direction, the pattern is carried on a plate 2 having a cylindrical extension 1 movable vertically in the base 3, and prevented from rotating by a groove and set-screw. The raising and lowering is effected by a crank 4 and lever 6. The crank is connected to the part 1 by a link 7, and is at one side of the axis of the part 1 so that when the pattern is raised the weight of the parts presses the crank 4 against an adjustable stop 10. The box is supported on bars 19 adjustable vertically on the brackets 16 which are adjustable horizontally on brackets 17 bolted to the base. A groove 14 holds a lubricant supplied by a cup 15.