baber/WOPTO huggingface dataset:
Patent GB-846700-A (GB)
Title: Improvements in and relating to linear polyesters
IPC: C08G63/82
Filed: 1958-10-03
Abstract: New crystilline polyesters have good dye absorbing properties, dielectric properties and moisture resistance and capable of being formed into fibres or films which upon being coldstretched have excellent strength, resiliency and pliability are the polyesterification product of (a) a disulphone dicarboxylic acid of formula R1 [SO2RCOOH]2 where R is a divalent arylene radical and R1 is a divalent saturated alkylene radical or an ester forming derivative of such an acid (e.g. an alkyl ester, acid chloride or diamide) and (b) an a ,o -glycol of formula R11(OH)2 where R11 is a saturated alkylene, alkylene ether or aralkylene radical containing from two to ten carbon atoms.  Specified glycols are a ,o -polymethylene glycols of formula OH (CH2)n OH )where n=2-10), 3-methyl-1,5-pentanediol triethylene glycol and p-xylylene glycol. Preferably polyesterification is effected by reacting the free acid or a dialkyl ester thereof with excess of the glycol at 150 DEG -250 DEG C. in the presence of an esterification or ester-interchange catalyst to form the diglycol ester of the acid which is polymerized at 180 DEG -300 DEG C.  Preferably also, reaction is effected whilst passing a stream of nitrogen through a melt of the reaction mixture, but the reactants may be dissolved in a solvent, e.g. a high boiling aliphatic or aromatic hydrocarbon.  Examples describe the manufacture of polyesters from (1)-(6) Dimethyl 4,41-(tetramethylenedisulphonyl) dibenzoate and ethylene glycol, 1,6-hexanediol, 1,10-decanediol, 1,5-pentanediol or 3-methyl-1,5-pentanediol; (7)-(11) dimethyl 4,41-(hexamethylenedisulphonyl) dibenzoate and 1,10-decanediol, 1,6-hexanediol, 3-methyl-1,5-pentanediol, 1,4-butanediol or ethylene glycol.ALSO:A dimethyl ester of a disulphone dicarboxylic acid of formula : R 1[SO2,R COOCH3]2 where R is a divalent arylene radical and R 1 is a divalent saturated alkylene radical is made by reacting an alkylene dichloride of formula R 1 Cl2 with a salt of a mercapto dicarboxylic acid of formula HS R COOH to form a dithio dicarboxylic acid of formula R 1 [SR COOH]2 which is oxidised with peracetic acid to give a disulphone dicarboxylic acid of formula R 1 [SO2R COOH]2 which is esterified with methanol to give the required ester.  In the exemplified esters, R is a p-phenylene radical and R 1 is a tetramethylene or hexamethylene radical.  The dimethyl ester is polycondensed with a glycol to form a polyester (see Group IV(a)).
Patent GB-410116-A (GB)
Title: Improvements in the manufacture of hosepipes and the like
IPC: B29D23/00
Filed: 1932-11-09
Abstract: 410,116. Hose pipes. LEJEUNE, L. S. M., 1, Place Gambetta, Wasquehal, Nord, and BONGRAND, J. E. C., 95, Rue de Monceau, Paris, both in France. Nov. 9, 1932, No. 31701. Convention date, Nov. 9, 1931. [Class 99 (ii).] Textile yarns, threads &c. which are known under the Registered Trade Mark " Filastic," that is, yarns &c. in which the individual fibres thereof are impregnated and coated with uncoagulated rubber, e.g. rubber latex, are used in the manufacture of hose pipes by disposing them in tubular form, together with, if desired, one or more layers of rubber and reinforcement in the form of metal wire. The yarn may be woven into fabric form or plaited or felted into sheet form and the latter then wound to form the hose, or else woven into tubular form on circular frames with one or more wraps, the fabric afterwards being reimpregnated with a mixture having a latex base and preferably containing vulcanizing constituents and fillers. The reinforcing wire may be wrapped with " Filastic " yarn before being embodied in the pipe, and the pipe before or after vulcanization may be surrounded by a woven or plaited protective sheath of such yarn which may itself be vulcanized after application. Specifications 338,381, [Class 120 (iii)], 344,414, [Group IX], 405,311,405,312, and 405,313, [all in Group V], are referred to.
Patent GB-983125-A (GB)
Title: Preparation of 9(11)-dehydro spirostanes and 3-esters thereof
Inventor: ELKS JOSEPH
IPC: C07J75/00
Filed: 1962-08-17
Abstract: The invention comprises compounds of formula <FORM:0983125/C2/1> wherein X is a chlorine or bromine atom and R is a hydrogen atom or an acyl group, and the process for preparing 9(11)-dehydro-12-desoxyspirotanes by reducing a 9(11)-dehydro-12-ketospirostane to the corresponding 12-(a - or b -hydroxy)-spirostane or a mixture of the epimers and, if desired, converting this to the 12-acylate, converting this product to the corresponding 12-halospirostane of the invention, and reducing this product to the 9(11)-dehydro-12-desoxyspirostane Starting materials specified are 9(11)-dehydrohecogenin, the 3-acyl derivative thereof, and 9(11)-dehydrobotogenin.
Patent GB-631807-A (GB)
Title: Improved machine for the manufacture of air-tight bags
IPC: B31B3/44
Filed: 1946-10-25
Abstract: 631,807. Making paper bags. CELLOPHANE SOC. ANON. Oct. 25, 1946, No. 31739. Convention date, Oct. 21, 1944. [Class 94(ii)] A block bottom bag, Fig. 1, of the kind having end folds 1 whose height determines the level to which the bag is filled, and end flaps 2 and 3 whose overlapping edges are stuck together, is made by means of a machine, Fig. 6, of the kind in which a plunger 7 forces a sheet of material through an aperture in a table 4 and into a box 9 provided with members 10, 11 and 12 which produce and fold over on each other the flaps 2 and 3. The machine is characterised in that a suction chamber 30 is provided at the delivery end of the folding box, the chamber being adapted to retain the completed bag (shown dotted) by suction when plunger and chamber are moved apart. The plunger is provided with a handle 8 and is connected to slides 16 mounted on guide rods 18 and 19. Heated rolls 13 are provided for sealing together the end flaps when the bag is made from thermoplastic material, the rotation of the rolls being controlled by the movement of the plunger. Flaps 34, pivoted to the chamber, are stated in the Specification to be adapted to flatten the bag after manufacture. In a modification a pair of folding boxes are disposed end to end and sheets are continuously fed between the boxes, a single plunger being provided to form a bag alternately in each box. The two suction chambers, which are reciprocated alternately to remove a bag from each end of the plunger, are alternately coupled electro-magnetically to the plunger, the latter being forced through a folding box alternately in opposite directions with reciprocation of the suction chambers. In a further modification the movement of the aforesaid single plunger is effected mechanically.
Patent GB-775203-A (GB)
Title: Sectional coldroom construction
IPC: E04H5/10
Filed: 1954-11-03
Abstract: 775,203. Insulating panels. STOKELEY, B. Nov. 3, 1954, No. 31840/54. Class 87(1) [Also in Group XIII A panel for use in the construction of a sectional coldroom comprises two sheets 5, 6 of insulating material, such as corkboard provided with peripheral wood frames 2, 4 and secured together in staggered relation to provide rabbets on two opposite edges. Tongues and grooves 7 may be formed on the rabbetted edges. The panels are faced with tarred building paper 9 and a sheet 8 of asbestos cement and a layer of granolithic cement reinforced with expanded metal sheet in the case of a floor panel, or stipple glaze asbestos and plywood or hardboard in the case of side and roof panels. The outer sheet 5 of a side panel may extend above and below the inner sheet 6 to engage the roof and floor panels. Corresponding L-shaped panels are provided for corners.
Patent GB-189458-A (GB)
IPC: B01D3/00
Filed: 1922-11-21
Abstract: 189,458. Barbet et Fils et Cie, E. Nov. 21, 1921, [Convention date]. Alcoholic liquids, distilling. -In a continuous apparatus for distilling and rectifying alcohols of the kind described in Specification 107,975 in which the vapours from a distilling-column A are used to heat the rectifying-column G, H, and the purifying- column D, the distilling- column is operated under a slightly increased pressure, the rectifying-column under a reduced pressure, and the purifying-column at atmospheric pressure. The pressure in the distilling column is maintained constant by a regulator N, N<1> in which the vapours are admitted to the lower vessel N<1> and which operates a steam-admission valve n, and the pressure in the rectifying-column by a regulator M, M<1> connected at the top by a pipe m to a pipe S<1> leading from the column to a suction pump S. A float valve in the upper tank M operates a valve U connecting the suction and delivery sides of the pump S. The upper plates of the column A are used to remove the gases of fermentation which are passed into a condenser J. The columns and condensers are sufficiently high to enable the condensates to be discharged through test-glasses 1, 2, 3. The oils from the column H, G, and the exhausted liquor from the base of the column are drawn through a cooler Q to test-glasses 4, 5, 6, by connecting these to a vessel Y exhausted through a pipe y connected to the suction pipe S<1>.
Patent GB-912318-A (GB)
Title: Improvements in or relating to capacitors
IPC: H01G2/12
Filed: 1961-09-06
Abstract: 912,318. Capacitors. BOSCH G.m.b.H., ROBERT. Sept. 6, 1961 [Sept. 10, 1960], No. 31952/61. Class 37. An aluminium housing 1 for a capacitor is provided with a coating of insulating material 2, which may be a polyamide plastic material, e.g. nylon-11, applied to its inner surface in zones which insulate the end connecting bridges of a wound capacitor when inserted into the housing from the metal. The polyamide layers may be deposited by heating the zones to 190-250‹ C. by induction heating, and sintering or flame spraying the polyamide powder into position, in vacuo if necessary. Displacement of the sintered layers may be prevented by providing the housing with embossed annular ribs.
Patent GB-825574-A (GB)
Title: Improvements relating to screw-driving machines
Inventor: PATTISON WALTER TREHEARN
IPC: B25B23/02
Filed: 1956-10-20
Abstract: 825,574. Screw-driving machines. RUSSELL AUTO-FEED SCREWDRIVERS Ltd. Oct. 17, 1957 [Oct. 20, 1956], No. 32004/56. Class 83 (3). In a screw-driving machine in which screws 15 from a hopper are fed through a guide to a nozzle (not shown), receiving the rotatable and axially movable screw-driving spindle, and a delivery-control device is associated with the guide for regulating the delivery of screws to the nozzle, a part 10 of the guide immediately beneath the hopper provides a passage 11 having an opening extending along one -side which is normally closed by a baffle 18, movable to an open position to allow access to the passage 11. The spindle may be driven, through a torque-limiting clutch, from a shaft passing through the hopper, which may be oscillated to feed the screws down a slot in a shoot-plate 14 under the control of a gating- device having arresting and parting-fingers, as in Specification 825,572. The part 10 of partcircular cross-section with wings 12 bounding the slot therein, is secured to a plate 13 adjacent plate 14, which is secured to the floor of the hopper, as described in Specification 825, 571. The baffle 18 is mounted to pivot on a pin 33 which may be fixed, as by a set-screw, to the baffle or to the wings, a knurled &c. clamping screw, passing through a hole in one of the wings 12 into a tapped-bore 32 in the baffle, securing it in position with the ends of a bridge-plate 23 fixed to the baffle bearing on the wings 12. The inner surface of the baffle illustrated, which may be replaced by others of different depth and length to accommodate screws of different head diameter and length, is arcuate, conforming or approximately conforming to the curvature of the passage 11. An inclined surface 21 on the top of the baffle may contact the shanks of oversize screws. A screw-threaded flange 25 at the lower end of the part 10 supports the housing 26 of a universal coupling for the deflection tube 29, as described in Specification 825,573, the tube 29 delivering screws to a further tube leading into the nozzle, above the end which bears on the work. The part 10 may be replaceable by others of different size.
Patent GB-930797-A (GB)
Title: Hydraulic control of feed rolls of roller mills
IPC: B02C4/28
Filed: 1960-09-19
Abstract: 930,797. Roller mills. MIAG MUEHLENBAU UND INDUSTRIE G.m.b.H. Sept. 19, 1960 [Sept. 19, 1959], No. 32077/60. Class 59. [Also in Group XXIX] The regulation of the feed rolls in a roller mill is effected by hydraulic gear constituted by a pump 1, the displacement of which is variable by swinging the pump housing against a spring loading, and a motor 2, the gear, which also regulates a servo-mechanism, having its power device 5 connected to grinding rolls, being under the control of a spring-loaded material supply feeler 81 through an amplifier 6. In the idling position the parts are in the positions shown, the amplifier 6 having adjusted the pump 1 for minimum displacement whilst the motor 2 and power device 5 are inoperative. Upon supplying material to be ground to the mill, the feeler 81 is depressed so causing pin 8 to close the central bore 61<SP>1</SP> of the amplifier piston 61, whereupon fluid supplied to a chamber 62 above the piston 61 by the pump 1 increases in pressure and causes leftward movement of a spring-loaded valve-member 91<SP>1</SP>, whereby ports 95<SP>1</SP>, 9511 are interconnected so opening pipe 15 to exhaust. Pressure fluid from the pump 1 is fed to a chamber 53 of the power device 5 through a pipe 41, a bore and a radial port 97 in the valve member 91<SP>1</SP>, and a pipe 42; resulting leftward movement of the spring-loaded power device piston 51 brings the movable grinding roll towards the operative position, and uncovers a port whereby pressure fluid is supplied to the feed roll motor 2, which latter rotates before the piston 51 has completely aligned the movable grinding roll. Concomitantly, the exhaust path from the other side of the piston 51 through the pipe 15 is closed so that the remainder of the exhausting fluid is directed through an adjustable check valve 13 to retard the last part of the piston movement. Any variation in the supply of material to be ground repositions the feeler 81 and the pin 8, the piston 61 following up the pin 8 and effecting adjustment of the pump output. Upon cessation of the supply of material the parts return to the positions shown under the action of the varying loading springs, the feed being terminated only when the movable grinding roll has been partly removed from its operational position. The spring loading of the piston 51 may be replaced by fluid loading. If for any reason the pump fails, the motor 2 stops at once, since the supply thereto is cut off; however, the pressure in chamber 62 is maintained by the pin 8, but since the pressure supply to the bore of the valve member 91<SP>1</SP> is also cut off, an auxiliary piston 90 therein can move under the loading against a stop 98 and exhaust the pressure in chamber 62 via a passage 99 in member 91<SP>1</SP>, whereupon the loading on the latter moves the member 91<SP>1</SP> to the inoperative position shown; the piston 51 is also forced to return to its rightward position. The piston 90 need not be used in which case the valve port 91<SP>11</SP> is formed as a leaky piston.
Patent GB-1136236-A (GB)
Title: Improvements in and relating to refrigerators
IPC: F25B15/10
Filed: 1965-12-08
Abstract: 1,136,236. Refrigerating; defrosting. ELECTROLUX Ltd. 8 Dec., 1965 [11 Dec., 1964], No. 32168/68. Divided out of 1,136,235. Heading F4H. The subject-matter of this Specification is the same as that described in Specification 1,136,235 but the claims are directed to the method of and apparatus for defrosting the evaporator of the absorption refrigeration system.
Patent GB-428819-A (GB)
Title: Improvements in and relating to boxes, receptacles and the like
IPC: E05D7/10
Filed: 1934-11-08
Abstract: 428,819. Hinges. SHEPHERD, O. M., 3, Clitherow Court, Boston Manor Road, Brentford, and KEITH - THOMAS, Ltd., C., India Works, Exhibition Grounds, Wembley, both in Middlesex. Nov. 8, 1934, No. 32167. [Class 65 (ii)] Small fancy boxes have the lid 2 hinged to the body 1 by a rib 4 on the lid engaging a recess 8 on the body and being retained therein by a resilient tongue 9. The rib has at the inner side a recessed flat 7 to accommodate the tongue when the lid is in the closed position. A cam portion 15 on the rib causes the lid to snap to the open and closed positions. To prevent the rib being levered out when the lid is in the open position the lid is formed with an outer recess 16 shaped so that contact is made with the outer face of the body at such a position 17 that the rib is pulled into the hinge recess 8. The lid and body are moulded from material such as ebonite or any phenolic condensation products, the rib and tongue being integral with their respective part.
Patent GB-1488308-A (GB)
Title: Penicillin-type antibiotic and process for producing same
IPC: C07D499/00
Filed: 1975-08-01
Abstract: 1488308 Penicillin derivative BRISTOLMYERS CO 1 Aug 1975 32184/75 Heading C2C The invention comprises the D*-compound of formula and its pharmaceutically acceptable salts. In examples, this compound is prepared by (1) converting p-hydroxyhetacillin to its methoxymethyl ester, or (2) making the methoxymethyl ester of Penicillin V, deacylating this to 6- APA methoxymethyl ester (PCl 5 /PhNMe 2  followed by alcoholysis and hydrolysis), and reacylating the latter to give methoxymethyl D- 6 - (p - hydroxy - α - aminophenylacetamido) penicillanate (II) which is reacted with Me 2 CO to form the imidazoline ring. (II) is also made by an esterification reaction. Therapeutic compositions having antibacterial activity comprise compounds of the above formula and may be administered orally or parenterally.
Patent GB-889930-A (GB)
Title: Improvements in or relating to telephone cables having coaxial pairs and balanced circuits for carrier frequencies
IPC: H01B11/00
Filed: 1959-09-22
Abstract: 889,930. Cables. PIRELLI S.p.A. Sept. 22, 1959 [Nov. 26, 1958], No. 32218/59. Class 36. A telephone cable comprises seven elements of identical size, four of which are coaxial pairs wrapped on the outside with insulating tape I, one of these 2 being disposed in the centre of the cable cross-section and the other three 1, 4, and 6 being disposed in a ring alternately with two star quads 3 and 5 not directly screened, for carrier frequency circuits, and with a quint 7, also not directly screened. The coaxial pairs have an outer conductor of copper strip longitudinally folded and two steel tapes wound thereover. The insulation of the quad conductors may be paper and air or expanded polyethylene. Specification 846,529 is referred to.
Patent GB-1005699-A (GB)
Title: Improvements in or relating to buckles
Inventor: HATFIELD JOHN EDWARD
IPC: A44B11/25
Filed: 1963-08-15
Abstract: 1,005,699. Strap fastenings. IRVING AIRCHUTE OF GREAT BRITAIN Ltd. June 29, 1964 [Aug. 15, 1963], No. 32337/63. Heading E2A. A safety belt buckle substantially of the kind described in Specifications 812,962 and 949,611 is characterized in that when the loop and slide members 1, 2 respectively are engaged the bar 11 on the slide member and the abutment 4 on the loop member are spaced apart sufficiently to avoid the strap 18 passing around the bar and back on itself being trapped between the bar and abutment, locking of the strap being achieved by the strap itself trapping the returned portion 19 thereof against the abutment. Extending inwardly from the sides 5, 6 of the loop member are flanges 12, 13 and a further bar 7 has projections 20 thus forming slots 14, 15 through which the slide member 2 may be inserted. The slots 14, 15 are of different lengths and the slide member is thicker on one side than the other so as to prevent the slide member being inserted in the wrong way. The flanges 12, 13 provide a fulcrum about which the slide member is rocked to engage the two members. The slide member has two projections 17 Fig. 4, (not shown) extending beyond the width of the slide member to prevent it passing right through the loop member and to prevent assembling in the wrong way.
Patent GB-1007987-A (GB)
Title: Process for oxidizing saturated cyclic hydrocarbon
Inventor: KOLLAR JOHN
IPC: C07C51/31
Filed: 1962-08-23
Abstract: A process for oxidizing a saturated cyclic hydrocarbon having from 4 to 8 cyclic carbon atoms per molecule, e.g. cyclo hexane with an oxygen-containing gas, wherein at least one of the saturated cyclic hydrocarbons is reacted under oxidation conditions in the presence of a solvent comprising an aliphatic monobasic acid which contains only primary and secondary hydrogen atoms and a catalyst comprising a cobalt salt of an organic acid preferably of the aliphatic monobasic acid used as the solvent, the molar ratio of the solvent to the saturated cyclic hydrocarbon being between 1.5 : 1 and 7 : 1, the molar ratio of the catalyst to the cyclic hydrocarbon being at least 5 millimoles per mole preferably between 7 and 15 millimoles per mole of the cyclic hydrocarbon.  In an example, acetic acid solvent, cobaltous acetate, cyclohexane and cyclohexanone are reacted with ozone at 95 DEG  C. for 3 1/2 hours to produce adipic acid.
Patent GB-160574-A (GB)
Title: Improvements in or relating to friction driving gear for motor vehicles
IPC: F16H15/10
Filed: 1919-12-24
Abstract: 160,574. Bohringer, A. J., and Digby, W. Dec. 24, 1919. Change-speed and reversing gearing.-Comprises friction-disc gear in which the disc A and roller B are mounted in a sub-frame C which is connected to the chassis by three pin-joints P, Q, R. The disc A and its shaft rotate in a screwed sleeve H which is adjusted axially in the frame C by means of nuts O.