baber/WOPTO huggingface dataset:
Patent GB-989942-A (GB)
Title: Copolymers
Inventor: KOCHER ERNST-ULRICH
IPC: C08G2/18
Filed: 1964-03-11
Abstract: Oxthiolanes are prepared by reaction of mercaptoalkanols with aldehydes or aldehyde yielding compounds such as paraformaldehyde in the presence of an acid, e.g. a Lewis acid.  In the preparation of 1,3-oxthiolane 390 g. mercaptoethanol, and 153 g. paraformaldehyde are heated in the presence of 0.05 to 5% of a strong acid, 200 ml. benzene added, water distilled off azeotropically and the remainder of solvents also distilled off. The residue is distilled off under normal pressure or in vacuo either with addition of 0.2 to 0.5% acid or after neutralization of the acid present.  The crude product may be purified by treatment with potassium hydroxide or aluminium hydroxide and dried over metallic sodium.ALSO:A solid ternary copolymer of trioxane has recurring units consisting of -CH2-O groups interrupted by groups (a) of formula <FORM:0989942/C3/1> where R is hydrogen, alkyl or halo-alkyl groups of one to four carbon atoms, X is methylene, methylene ether, or methylene thioether radicals and n is 1, 2 or 3, and by groups (b) of formula <FORM:0989942/C3/2> where R is as above, X is methylene, oxymethylene, alkyl or haloalkyl substituted methylene or oxymethylene, the alkyl groups having one to four carbon atoms, n is 0, 1, 2 or 3 and m is 1, 2, 3 or 4, the amount of (a) and (b) groups in the copolymer being from 50 to 0.1% and the weight ratio of (a) to (b) being from 0.1 : 1 to 1 : 0.1. The copolymer may be prepared by cationic catalysis, e.g. with boron fluoride diethyl etherate, aryldiazonium fluorborates and other Lewis acids, in bulk (preferably) or in suspension or solution.  Specified compounds of formula (a) are ethylene, propylene and butylene sulphide, tetrahydrothiophene, 1-3-oxthiolane, 2-methyl-1,3-oxthiolane, 1-3-dithiolane, 2 - methyl - 1 - 3 - dithiolane and 1 - 3 - dioxa - 6-thiacyclo-octane while specified compounds (b) are ethylene oxide, 1-4-dioxane, trimethylene oxide, tetramethylene oxide, 1-2-propylene oxide, 1-2- or 1-3-butylene oxide, epichlorhydrin, 2 - 2 - di - (chloroalkyl) - 1 - 3 - propylene oxide, 1-3-dioxolanes, diethylene glycol formal, dioxane, 1 - 3 - dioxa-cycloheptane, 1 - 3 - 5 - trioxacycloheptane, 1 - 3 - 6 - 9 - tetraoxacyclo undecane, pentacrythritol diformal and tetrahydrofuran. The copolymer may be heated alone, in suspension, solution or with alcohols in the presence of bases, to increase the thermal stability.
Patent GB-1014822-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: CARLSON WALTER BERNDT
IPC: G21C3/322
Filed: 1961-03-21
Abstract: 1,014,822. Fuel elements. BABCOCK & WILCOX Ltd. March 19, 1962 [March 21, 1961], No. 10328/61. Heading G6C. A fuel pin cluster for a liquid-cooled nuclear reactor has fuel pins arranged in a matrix defining a plurality of regular polygons such that the fuel pins associated with any polygon are disposed about a flow space located within the polygon, and finning means with pins attached to the cluster and either extending not at all, or extending from the fuel pins to their least extent, along the sides of the polygon, the pins being adapted to produce whirling of coolant flowing longitudinally through the flow space, the direction of whirl being the same as that produced by pins of other such finning means in each of the other flow spaces in the cluster. As shown in Fig. 2, fuel pins 1 are arranged in a square lattice and secured in spaced relationship by ferrules 4 located at vertically spaced intervals in the flow spaces 2. Each ferrule 4 is formed internally with a helical fin which results in the coolant following helical paths 6 throughout the length of the flow spaces 2. The helical flows 6 and the vortices 8 cause heavier, cooler liquid to be thrown centrifugally outwards whilst lighter, hotter liquid and/or vapour tends to be concentrated at the centres of the flow spaces 2 and the gaps 3. As a result, the coolant acts more effectively in cooling the fuel pins 1 and the burn-up flux of the fuel element is increased. In another form of fuel element (Figs. 6 and 8), fuel pins 10 are arranged in a square lattice and secured in spaced relationship by vertically spaced grid members (not shown), flow spaces 11 defined within groups of four fuel pins 10 communicating by way of gaps 12. The pins 10 are externally finned, each pin having around its periphery four longitudinally extending sets 13A, 13B, 13C and 13D of fins 14. Each fin 14 is formed as part of a helix extending coaxially of the associated pin and of suitably small pitch so as to progress longitudinally of the pin at a much greater rate than circumferentially, while the peripheral contours of the fins 14 define a substantially square section. Coolant flowing upwardly through the flow spaces 11 is caused to flow in helical paths by the fins 14 and, since all the fins 14 rotate in the same direction, whirls 17 are produced. Since all the whirls 17 are in the same direction, secondary vortices 18 are induced in the gaps 12.
Patent GB-465686-A (GB)
Title: Improvements in or relating to hooks for chains, straps and the like
IPC: F16B45/04
Filed: 1936-04-09
Abstract: 465,686. Hooks. STEIGENBERGER, F. April 9, 1936, No. 10427. [Class 89 (ii)] The hook 3 formed on the end of the shank 5 is moused by the sliding sleeve 6, the sleeve being held in the closing position by the spring 15. In a modification the sleeve is retracted from a distance by a cord connection. The sleeve is prevented from rotating on the body by the tongue 9 engaging a recess in the hook body.
Patent GB-866434-A (GB)
Title: 1:4-quinone dyestuffs
IPC: C07D203/14
Filed: 1958-04-01
Abstract: The invention comprises dyestuffs of the formula:-<FORM:0866434/IV(c)/1> where R1 is -COOR and R2 is hydrogen, -COR, -COOR or alkyl, R being alkyl of 1-4 carbon atoms and R3 is the residue of a primary or secondary amine and wherein the aromatic nucleus may be substituted by further R3 and/or <FORM:0866434/IV(c)/2> groups or may have an aromatic ring or a heterocyclic ring fused on to it, which fused ring may also be substituted by R3 and/or groups.  The dyestuffs are made by reacting a compound of the formula:-  <FORM:0866434/IV(c)/3> where Ha1 is a halogen atom and R1 and R2 have the above meaning with a primary or secondary amine.  The dyestuffs dye synthetic fibres such as those from polyacrylonitrile and cellulose acetate, nitrate and acetopropionate yellow to red shades.  Examples are given.
Patent GB-875654-A (GB)
Title: New cupriferous trisazo dyestuffs and a process for their preparation
Inventor: JIROU MARCEL
IPC: C09B45/28
Filed: 1959-03-26
Abstract: The invention comprises copper complexes of dyes of formula:- <FORM:0875654/IV(c)/1> where R is the residue of an acylaminonaphthol sulphonic acid coupled #sto the OH group, the complexes containing one to two atoms of copper per mole of dye.  The dyes are made by dealkylating metallization of the alkoxy derivatives of dyes of the above formula.  When R is a residue of a 2-acyl-amino-5-naphthol-7-sulphonic acid compounds containing 2 atoms of copper per mole of dye may be obtained.  1, 1-complexes may be obtained from the 2, 1-complexes by treatment with the tetrasodium salt of ethylene diamine tetra-acetic acid.  The dyes colour vegetable fibres.  Examples are provided in which R is (1) 2-benzoylamino- 8-naphthol- 6-sulphonic acid, a 1, 1-complex being obtained, (2) 2-benzoylamino- 5-naphthol- 7-sulphonic acid, a 2, 1-complex being obtained, (3) as (2) but a 1, 1-complex is prepared and (4) 1-acetylamino- 8-naphthol- 4-sulphonic acid and the products are used to dye cellulosic fibres in green or blue shades.
Patent GB-383174-A (GB)
Title: Improvements in springs of nickel-iron alloy
IPC: E05B35/08
Filed: 1932-04-12
Abstract: Springs such as watch springs are made from iron-nickel alloys containing 25-40 per cent of nickel, 0,1-3 per cent of beryllium, and a total of 5-30 per cent of one or more of the metals tungsten, molybdenum, tantalum, and vanadium.  The Specification as open to inspection under Sect. 91 (3) (a) refers also to chromium as a constituent.  This subject-matter does not appear in the Specification as accepted.
Patent GB-750860-A (GB)
Title: Improvements in bottle sealing caps and machines for making them
IPC: B65D41/12
Filed: 1954-04-09
Abstract: 750,860. Stamping. GUERIAUD, R. April 9, 1954, No. 10513/54. Class 83 (4). [Also in Group XVII] A machine for stamping out a bottle cap has a frame with fixed parts 7, 8 and a part 9 vertically movable and carrying a die 10 with projections 10a. A counter-die 11 slidable vertically in part 7 and urged upwardly by a spring 12 carries a rod 14 which bears on an abutment 15 to limit downward displacement.
Patent GB-544096-A (GB)
Title: Improvements in or relating to radio-receivers with remote switching control
IPC: H03G1/02
Filed: 1940-06-18
Abstract: 544,096. Electrically-released switches; actuation of switches. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). June 18, 1940, No. 10557. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 23, 1940.] [Class 38 (v)] [Also in Group XL] In a remote control system for switching a radio receiver on and off, the armature 40 of a relay 7, Fig. 2, is adapted to release a belt-crank 37 loosely pivoted on a motor - driven shaft 30, this bell-crank then closing a contact 16 under the influence of a spring 39 extending between the bell-crank and an arm 36 fast on the shaft 30. After the motor has closed a switch 25, a shoulder 38 on the arm 36 comes against the bell-crank 37 which then follows the rotation of the arm 36 and allows the spring contact 16 to open. In Fig. 3, in the position in which the set is operative through the main switch 50 being closed, the closing of a distant switch 62 energizes an electromagnet 56 by a battery 63, causing the release of a catch 55, whereupon a spring 54 acts on a slide 51 and opens the main switch 50. The set can then be,set again in operation by the closing of another distant switch 65 energizing another electromagnet 60 by battery 63, causing the release of a catch 59, whereupon a stronger spring 58 acts on a slide 57 and thereby on the slide 51 to reclose the main switch 50 and recock the spring 54. After this, a local motor drives a pinion and rack 61, 57 and recocks the spring 58.
Patent GB-269905-A (GB)
Title: Improvements in intermediate superheaters for high pressure steam plants
IPC: F22G1/00
Filed: 1927-04-20
Abstract: 269,905. L÷ffler, S. April 22, 1926, [Convention date]. Superheating by steam.- An intermediate stage superheater consists of concentric double tubes A, B wound in cylindrical coils, the low-pressure steam being superheated in the outer tubes by high-pressure steam flowing through the inner tubes. Low pressure steam flowing upwardly through the outer tubes of a number of separate concentric coils 1 - - 4 is superheated by high pressure steam flowing downwardly through the inner tubes of the coils. To equalize the heating surfaces of the concentric coils, they are made in decreasing lengths corresponding to their increasing diameters.
Patent GB-577409-A (GB)
Title: Improvements in or relating to hook couplings
IPC: B64D17/38
Filed: 1944-06-02
Abstract: 577,409. Hooks. UNTHANK, G. R., and SILLEY, H. A. J. June 2, 1944, No. 10678. [Class 89 (ii)] Hooks particularly adapted for supporting loads from parachutes are arranged to release their load immediately it touches the ground. A rod 10 has a swivel 11 for connection to the parachute cords and terminates in a yoke 12 with a pin 13 on which sister hooks 14, 15 are pivoted. The end of the yoke carries horns 16 that co-operate with the hooks, in the closed position, to form a load bearing eye. Tails 14a on the hooks have pins 14B engaging with backlash slots 20B in wings 20 carried by a sleeve 17 slidable on the rod 10 under the control of a spring 21. When the load is first dropped the hooks are maintained closed by the heel 23A of a detent pivoted at 24 to the sleeve 17 and passing through a slot therein to engage above a collar 22. A cord attached to the top of the parachute is held in a fork of the detent by a spring catch 27. As soon as the parachute is fully open the cord first trips the detent, rotating it to the position shown, and then escapes from the catch 27. The spring 21 then slides the sleeve 17 to the extent permitted by the backlash, the pull of the load sufficing to maintain the hooks closed. This movement of the sleeve 17 prevents any accidental re-engagement of the detent and when the load touches the ground the spring 21 immediately releases the hook.
Patent GB-309592-A (GB)
Title: Improved method of reheating metal articles
IPC: C21D1/773
Filed: 1929-04-06
Abstract: 309,592. Hanemann, H. April 13, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Addition to 304,196. Annealing. - In a process for heat-treating metal articles as described in the parent Specification the articles are heated in a vacuum electrically either by resistances or by eddy currents produced by high frequency currents.
Patent GB-1192296-A (GB)
Title: 2, 6-Methano-3-benzazocine Derivatives
IPC: C07D213/20
Filed: 1968-02-12
Abstract: 1,192,296. 1,2,3,4,5,6 - Hexahydro - 2,6- methano-3-benzazocines. STERLING DRUG Inc. 12 Feb., 1968 [25 Sept., 1967], No. 10682/69. Divided out of 1,192,295. Heading C2C. Novel 1,2,3,4,5,6 - hexahydro - 3 - benzyl - 6- (R<SP>1</SP>) - 11 - (R<SP>2</SP>) - 8 - (Z) - 2,6 - methano - 3 - benzazocine wherein R 1  and R 2  are each lower alkyl having 1 to 4 carbon atoms and Z is H or OH are prepared by reacting N-benzyl-3-(R<SP>2</SP>)-4-(R<SP>1</SP>)- pyridinium halide with (p-Y-benzyl)-magnesium halide in a Grignard Reaction to give N- benzyl - 2 - (p - Y - benzyl) - 3 - (R<SP>2</SP>) - 4 - (R<SP>1</SP>) - 1, 2-dihydropyridine; reducing the N-benzyl-2- (p - Y - benzyl) - 3 - (R<SP>2</SP>) - 4 - (R<SP>1</SP>)  -  1,2 - dihydropyridine with NaBH 4  in aqueous alcoholic solution to give N-benzyl-2-(p-Y-benzyl)-3-(R<SP>2</SP>)-4- (R<SP>1</SP>) - 1,2,5,6 - tetrahydropyridine which compounds are described and claimed in Specification 1,192,295; and cyclizing this tetrahydropyridine by heating it with a strong mineral acid, wherein Y is H or lower alkoxy having 1 to 4 carbon atoms (methyl exemplified), and Z is H when Y is H, and Z is OH where Y is lower alkoxy.
Patent GB-274395-A (GB)
Title: Method of producing transparent areas on mirrored electric discharge containers
IPC: H01J7/18
Filed: 1927-04-21
Abstract: 274,395. Meyer, F., and Spanner, H. J. Aug. 20, 1926, [Convention date]. Vacuum tubes.-A part of the wall of a discharge tube is kept free of gettering material by means of a metallic member of tubular, conical. or funnel shape, formed of wide mesh wire gauze or of a wire. spiral or helix, which is connected with the cathode, and extends so that the other end is in contact with, or approaches closely to the glass wall. In plan view the coil may be circular, oval, square, or rectangular. Several such members may be mounted in a tube. Wires or strips may be provided at the end of the coil &c. so as to make contact with the deposit on the wall.
Patent GB-680981-A (GB)
Title: Improvements in or relating to elastic bands for woven textile garments
IPC: A41F9/02
Filed: 1951-05-08
Abstract: 680,981. Elastic bands for garments. NOBELT CO. May 8, 1951 [June 15, 1950], No. 10762/51. Class 141. An elastic band e.g. waistband for garments comprises a strip of sheet rubber 12 on the inner face of the garment 11 the edge 10 of which i, folded over the strip, and an inner knitted sheath 14 covering the inner face of the strip, a plurality of longitudinal rows of stitching uniting the strip 12, sheath 14 and gar ment 11 and one row passing through the folded over portion 15 The edges of the sheath are prefer. ably folded in and the lowermost row of stitching may either pass through the rubber strip, as shown or may be below it.
Patent GB-1461133-A (GB)
Title: Synthetic lubricaint oils from catalytic cracking of polymers  of a very high viscosity
IPC: C08F8/04
Filed: 1974-03-11
Abstract: 1461133 Synthetic oils SNAMPROGETTI SpA 11 March 1974 [12 March 1973] 10833/74 Heading C5E Synthetic oils are made by catalytically cracking an n-alpha olefin polymer at 250- 300‹ C. and a LHSV of 0À1 to 5 and distilling the cracked product under vacuum to produce the oil as a residue boiling above 400‹ C. at atmospheric pressure; the polymer used has a boiling point of at least 175‹ C. and a viscosity of 250-15,000 cSt. at 210‹ F. and is produced by polymerizing an olefin of the formula R-CH = CH 2  wherein R is a linear alkyl radical containing 2 to 16 carbon atoms, e.g. in the presence of a TiCl 4 /polyiminoalane catalyst. The cracking can be carried out in an electrically heated tubular reactor containing activated alumina as catalyst. The synthetic oil can be hydrogenated, e.g. at 200‹ C. using a catalyst of 0À3% Pd or alumina.
Patent GB-490316-A (GB)
Title: Improvements in folding or collapsible boxes, cartons and like containers
IPC: B65D5/24
Filed: 1937-04-16
Abstract: 490,316. Boxes. MARKS & SPENCER, Ltd., and SHENFIELD, J. A. April 16, 1937, No. 10886. [Class 18] A box made of cardboard &c. is provided with scored corner pieces 6 which can be folded inwards to lie against the front and back walls in which position they are maintained by flaps 8 on the lid. The lid in closing telescopes into the carton, the edges 81, 8<11> of the flaps 8 pressing against the corner pieces 6 and the flap 10 sliding between the front pieces 6 and the front 1 of the box. The top edges 811 may be cut away at an angle instead of being rounded. The box and its lid are made from a single blank.
Patent GB-331288-A (GB)
Title: Core making for cast pipes
IPC: B22C13/10
Filed: 1929-04-09
Abstract: 331,288. Ardelt, R. April 9, 1929. Plants; cores.-In a plant for making cores for cast pipes, the core spindles are extracted from the charged pipe-moulds 1 in a casting shop 2. deposited on a waggon 9 in a core making shop 5 and carried in the waggon over drying ovens 12a, 12b, as shown in F'ig. 3, to core lathes 16. Here the cores 7 are made in stages, being dried after each stage in one of the ovens 12, 12<b>, and are finally withdrawn from the other end of the oven by a cable 15, Fig. 3, lifted by cranes 6, 8, Fig. 1, and deposited in moulds made by a ramming machine 3 in the rotary frame 4. The waggons 9 are lifted and lowered to the required levels by tables 13, 13<a> on hydraulic pistons 20, 20a and are moved horizontally to and from the table 13<a> by a chain driven by an electric winch 14 and engaged by dogs on the waggons. A crane 17 is used for moving the cores between the lathes 16 and the waggon 9.
Patent GB-912483-A (GB)
Title: Tube connection clip more especially a scaffolding clip
IPC: E04G7/24
Filed: 1959-04-02
Abstract: 912,483. Clamp fastenings. EERSTE NEDERLANDSCHE STALEN STEIGER ONDERNEMING HOLLAND N.V. April 2, 1959 [April 2, 1958], No. 11188/59. Class 44. A tube connection clip comprises at least one clamp arranged substantially to encircle a tube, and including spaced edge surfaces adapted to be drawn together by a wedge to clamp the clip upon the tube, one of the edges having mounted thereon a wedge eye projecting through the other of the edges, the other edge being formed with a bearing surface for the wedge, the wedge being in the form of a narrow plate, having a width increasing evenly from an intermediate position towards the ends, and the wedge eye being so formed that the ends of the wedge cannot pass right through the eye. As shown in Fig. 2, the clip connects two tubes 1, 1<SP>1</SP> together at right angles, the clip having two identical sections. Each section has a bed comprising two plates 2, 3 which are arranged in parallel relation the plates forming one bed being arranged at right angles to the plates forming the other bed and the four plates being connected together by welding. Each plate has a part circular cut-out to receive the tube. Each plate is provided with a bent lug 4 at each end and to the lugs 4 at one end of each bed is welded a pivot pin 9 for a part circular strap 8 the lugs 4 at the other end of each bed act as the bearing surface for the wedge 12. The wedge eye is in a link 11 which is pivoted to the other end of the strap 8 the link, in use, being positioned between the two lugs 4. The wedge is prevented from coming out of the eye by protrusions 14 in the walls of the eye. In an alternative construction, Fig. 6, a strap 18 of approximately circular shape is provided with two parallel flanges one at each end and a lug 19 is welded to one of the flanges 17 and passes through a hole in the other flange 16. The wedge eye is in the lug 19, a straight side of the wedge bearing on the flange 16.
Patent GB-637219-A (GB)
Title: Improvements in or relating to sliding or adjustable seats
IPC: B60N2/07
Filed: 1948-04-23
Abstract: 637,219. Sliding seats. FREESTONE, V. E. April 23, 1948, No. 11296. [Class 52 (ii)] In a sliding seat of the kind in which a seat frame is arranged to slide in a pair of runners secured to a fixed support and in which a latch is provided whereby the seat frame may be adjusted by means of the latch engaging a selected hole or tooth arranged on one or both of the runners a shield is provided for masking all the holes &c. except the preselected one whereby, after being moved, it can only be latched in the originally selected position. As shown a pair of channels 11. 12 comprise the runners in which the seat frame 31 slides by means of pairs of rollers 42. One of the channels is provided with a series of holes 23 adapted to be engaged by a plunger 32 of a spring-pressed latch 35 and a shield comprising a plate 25 is adjustably arranged within the runner so that its one aperture registers with the selected hole 23. The plate 25 is held in position by a screw 27 which passes through the plate into an abutment 47 which serves as a nut and also as an abutment for the front roller when the seat arrives at locking position. Anti-rattling springs may be provided.
Patent GB-274231-A (GB)
Title: Improvements in or relating to cupboards, racks or safes
IPC: A47B57/58
Filed: 1926-04-30
Abstract: 274,231. McClean, C. G., and Sinclair, J. April 30, 1926. Shelves. - Cupboards or racks are fitted with internal division plates 1 and telescopic partitions 5, 6 which may be used in vertical or horizontal positions. Longitudinal series of holes are provided in the plates 1 for the securing bolts passing through the flanged ends of the telescopic partitions 5, 6. When used horizontally the ends of the plates 1 are adjustably mounted on vertical racks (not shown), and in the vertical position are secured by bolts through their end flanges.
Patent GB-329465-A (GB)
Title: Improvements in or relating to spade and like terminals
IPC: H01R13/58
Filed: 1929-04-12
Abstract: 329,465. Belling & Lee, Ltd., and Byrne, W. J. April 12, 1929. Plug couplings and connectors; wire terminals. - The spring prongs of a wander plug or a spade terminal are formed from a length of drawn strip or wire which carries a contact head against which the conductor is gripped by a cap. The head is either formed integral with the prongs or is pressed or screwed on the prongs. In the construction of the plug shown in Fig. 1 and the terminal shown in Fig. 3 the head is recessed in a bush 3 over which the cap is screwed. Alternatively the cap may be screwed or tightly fitted over the head itself which may be cylindrical, conical or eyelet in shape. The insulator covering of the conductor may be gripped between a washer 7 and the cap 4 and the aperture 5 for the conductor may be either at the top or side of the cap. The cross section of the prongs is semicircular in the case of the plug and rectangular in the case of the terminal. A running washer may be provided on the prongs of the plug to facilitate insertion in a socket and the ends of the prongs may be turned outwards to retain the washer. Specification 329,371 is referred to in the Provisional Specification.