baber/WOPTO huggingface dataset:
Patent GB-1392156-A (GB)
Title: 7-3-substituted ureido and thioureido cephalosporins
IPC: A61K31/545
Filed: 1973-06-22
Abstract: 1392156 7 - (3 - Substituted ureido and thioureido)cephalosporins RECHERCHE ET INDUSTRIE THERAPEUTIQUES 22 June 1973 [22 June 1972] 29699/73 Heading C2C A novel compound has the formula wherein R<SP>1</SP> is a saturated or unsaturated ali phatic group of up to 6 carbon atoms having a straight or branched chain, unsubstituted or substituted with from one to two groups selected from halogen, hydroxy, methoxy, azido, amino, carboxy, cyano, nitro or diloweralkylamino, aryl, saturated or unsaturated alicyclic of up to 6 carbon atoms and 5 or 6 membered heterocyclic ring having up to 4 atoms which are N, O or S, said aryl, alicyclic and heterocyclic rings being unsubstituted or substituted with one or two groups selected from halogen, hydroxy, cyano, nitro, acetamido, sulphamoyl, mercapto, methylthio, lower alkyl, lower alkoxy and diloweralkylamino; an aryl group of a saturated or unsaturated alicyclic group of up to 6 carbon atoms or a heterocyclic ring containing up to 4 atoms which are N, O or S said aryl, alicyclic or heterocyclic rings being unsubstituted or substituted with one or two groups selected from hydroxy, cyano, nitro, acetamido, sulphamoyl, mercapto, methylthio, lower alkyl, lower alkoxyl and diloweralkylamino; Z is O or S ; R<SP>2</SP> is hydrogen, pyridinium, N-piperidino- or N-piperazino-dithiocarboxylate or 8-Het wherein Het is a 5- or 6-membered heterocyclic ring containing one or more atoms which are N, O, or S, with or without ring substituents such as halogen, lower alkyl, lower alkoxy, amino, lower alkylamino or dialkylamine; and M is hydrogen, alkali metal cation, alkaline earth cation or an ammonium cation. The compound may be prepared by forming a ureido or thioureido bond by reacting in a non-reactive organic solvent the isocyanate or isothiocyanate derived from one of 7-aminocephalosporanic acid and the amine of formula R<SP>1</SP>NH 2  with the other of said reactants and then either catalytically hydrogenating the 3-acetoxy group to yield the 3-methyl group or displacing the 3-acetoxy group with the desired mercaptoheterocyclic compound, the displacement reaction being carried out at neutral pH in a non-reactive polar solvent at 40‹ to 80‹ C., and, when R<SP>1</SP> is substituted by hydroxy, mercapto, amino or carboxy, protecting the corresponding reactant according to any known method from the art for affording such protection, the compounds wherein M is not hydrogen being prepared from the free acid by reacting said free acid with the appropriate base.
Patent GB-755962-A (GB)
Title: Improvements in or relating to apparatus for the convex grinding of gear wheels
IPC: B23F19/00
Filed: 1953-10-28
Abstract: 755,962. 6ear-grinding. ZAHNRADFABRIK FRIEDRICHSHAFEN AKT.-GES. Oct. 28, 1953 [Oct. 28, 1952; May 23, 1953; Sept. 26, 1953], No. 29845/53. Class 83 (3). [Also in Group XXIII] A machine for form-grinding plain and helical gear-wheels 6 comprises means including a template 11 on the fixed frame of the machine for turning the work according to the longitudinal movement of a work-table 1 as it is traversed past the form-wheel 69. The work is turned by bands attached to a disc 3 and a slide 2. The slide carries a shoe 9 which is held by a piston 17 against one of two templates 10, 11 according to the direction of movement of the table and the flank being ground. The piston 17 is controlled by a valve 21 reversed by dogs on the table. If the table is moved by hydraulic means, the reversing means therefor may be combined with the valve 21. The curvature of the templates may be adjusted by screws 14, Fig. 2. In a modification, the templates each have a double track 34, 35, Fig. 3. The upper curved track co-operates with a roller 27 for grinding and the lower, straight track with an eccentricallymounted roller 28 which can be brought into operation for trueing the grinding wheel (see Group XXIII). The templates may be formed with a number of curved projections for grinding a series of coaxial workpieces. In a further modification, templates 56, 57, Fig. 9, are moved alternately by a pneumatic device 60 to cooperate with a roller 49 on an arm 50 on the work-spindle 47.
Patent GB-1319423-A (GB)
Title: Tooth paste
IPC: A61Q11/00
Filed: 1971-06-25
Abstract: 1319423 Toothpastes containing dextranase KAO SOAP CO Ltd 25 June 1971 [26 June 1970] 29929/71 Heading A5B A toothpaste composition comprises dextranase, a foaming agent selected from sodium N-lauroyl sarcosinate, potassium N-2-ethyl laurate sulphoacetamide of the formula and a mixture thereof, and a binder consisting of one or more of sodium alginate, alginic acid propylene glycol ester, carrageenan and gum arabic powder. The composition may comprise from 1 to 1,000 units of dextranase per gram of the composition and the dextranase may be a product of an Aspergillus, Chaetomium, Penicillium, Streptomyces or Sporotichum mould or bacteria. The composition may also comprise a humectant such as glycerol, sorbitol or propylene glycol; a polishing agent such as anhydrous dicalcium phosphate and its dihydrate; sweetening agent, antiseptic such as sodium benzoate or methyl p-hydroxy-benzoate; perfumes and water.
Patent GB-954089-A (GB)
Title: A process for the production of alkali metal pertitanates and perzirconates
IPC: C25D3/56
Filed: 1961-08-18
Abstract: Alkali metal pertitanates and perzirconates are produced by hydrolysing the tetravalent salts of titanium and zirconium in alkali solution at a temperature less than 10 DEG  C., separating the solid and adding hydrogen peroxide containing 1-5% of sodium pyrophosphate the addition product obtained is then converted to the pertitanate or perzirconate by dissolving in alkali solution. The salts preferably used are the tetrafluorides, chlorides and sulphates, and preferably saturated solutions thereof.  The products may be used in alloy coating baths. Specifications 918,904 and 919,814 are referred to.
Patent GB-741533-A (GB)
Title: Improvements in or relating to cathode-ray tubes
IPC: H01J29/24
Filed: 1953-10-30
Abstract: 741,533. Cathode-ray tubes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Oct. 30, 1953 [Nov. 4, 1952], No. 30041/53. Class 39 (1). A glass plate 4 is mounted near window 3 closing the end of conical envelope part 2, by insulating members 6 securing the plate to a metal frame 5 attached to the inner wall of the envelope as by rods 7, the members 6 having grooves 9 within which the glass plate rests without clearance in the cold state and the frame 5 having a coefficient of expansion higher than that of the plate. During the heating of metal envelope 2 which occurs during sealing of the window or otherwise in manufacture the plate lies loosely in the grooves and distortion is avoided; the insulating members which are preferably ceramic, also delay the transfer of heat from the envelope to the plate. The plate may be flat and centred in all directions or curved and centred in only one direction. It may carry electrodes, colour lines or photoelectric mosaic patterns.
Patent GB-900711-A (GB)
Title: Hydraulic pit prop
IPC: E21D15/45
Filed: 1958-09-19
Abstract: 900,711. Mine roof supports. VON LINSINGEN, M., [trading as BOCHUMER EISENHUTTE HEINTZMANN & CO.]. Sept. 19, 1958 [Sept. 24, 1957], No. 30086/58. Class 20 (2). [Also in Group XXVIII] An hydraulic pit prop is operated by a reciprocating pump which may be fixed to the prop and operated by a lever pivoted on the prop. The pump comprises a piston 10a slidable within a sleeve valve 19 which is mounted in a housing 8 and adjustable by turning the piston-rod 10 to which it is coupled by a pin 20 (not shown). The sleeve valve 19 is provided with ports 27- 30 and the housing 8 is provided with a valved inlet 16, an outlet 9 to the prop and a pressure release port 17. As shown in Fig. 3, operation of the piston 10a causes the sleeve valve 19 to rise against a spring 22 to bring a port 30 in line with the outlet 9 and supply fluid for the prop. The sleeve valve is adjustable to an inoperative position and to a pressure release position in which ports therein are aligned with the outlet 9 and the port 17. A pressure relief valve is provided in the wall of the outlet 9.
Patent GB-279656-A (GB)
Title: Improvements in, and relating to, trousers
IPC: A41F9/02
Filed: 1926-11-27
Abstract: 279,656. Meakers, Ltd., and Meaker, E. J. Nov. 27, 1926. Trousers; waistbands.-Trousers are provided at the waist with loops d and tunnels b, the tunnels being in sections with the loops at the end thereof. This enables a belt to be threaded through the tunnel sections or to be alternatively exposed on the outside of the trousers and maintained in position by the loops only.
Patent GB-973193-A (GB)
Title: Improvements relating to snow ploughs
Inventor: HOWIE JAMES BRYSON
IPC: E01H5/06
Filed: 1962-08-04
Abstract: 973,193. Snow ploughs. J. B. HOWIE Ltd. July 31, 1963 [Aug. 4, 1962], No. 30097/62. Addition to 946,680. Heading E1G. The angle blade 5 of a snow plough is mounted for pivotal connection on a frame 10, connected to a vehicle 12, and has a twisting movement relative to the frame, abutments 7, 19 coacting to maintain the blade substantially horizontal as the blade is raised by the frame 10. With the blade lowered, twisting movement between the blade and frame 10 is permitted by the coupling pin 9 moving in a transverse slot 15 in the upper blade support 7, the abutments 19 being clear of the support 7 by virtue of a clearance between the support and the upper end of the pin sleeve 16. On raising the frame by jack 14 the clearance decreases and an abutment 19 contacts the support 7 to maintain the blade substantially horizontal. The abutments 19 have ramps 20 to maintain the blade horizontal as it is swung for right or left hand working.
Patent GB-963165-A (GB)
Title: Improvements in and relating to rail anchors
IPC: E01B13/02
Filed: 1962-08-07
Abstract: 963,165. Angular bending; forging; making rail anchors. POOR & CO. Aug. 7, 1962 [Feb. 7, 1962], No. 30252/62. Headings B3A, B3E and B3H. [Also in Division E1] A rail anchor A is formed from T-section stock by dies D and E, Fig. 1, a die cavity E<SP>1</SP> being shaped to form a slightly domed shoulder S. The shoulder S is then located in a groove 10 in the die F of a finishing press and an arm G moved pivotally to complete bending of the anchor to the form shown in Fig. 4 in which a shoulder S with a rectilinear edge is flanked by arcuate portions.
Patent GB-424295-A (GB)
Title: Improvements relating to seats, chairs, and the like, and their manufacture
IPC: B60N2/24
Filed: 1933-11-01
Abstract: 424,295. Seat frames. REYNOLDS, W. H., 9, Bloxcidge Street, Langley, near Birmingham. Nov. 1, 1933, No. 30282. [Class 52 (ii)] The back frame of a seat is constituted by a tube b of inverted U-shape, the limbs c of which are longitudinally split severed or divided so that the inner parts are removed and the outer parts adapted to slide over or otherwise engage tubular uprights a<1> carried by the seat. In the form shown, the limbs c comprise lengths of metal of arcuate section welded to the ends of the top tube b. Cross strips c<2> may be provided for the attachment of the back squab, or lugs b<2>, c<1> may be used for the same purpose. The uprights a<1> may converge towards the top, the limbs c being set to correspond. Apertures a<2> at the top of the uprights a<1> receive pins b<3> on the top tube b. The back-frame may be completely covered by the upholstery. The seat may comprise a resilient mesh f secured to flanged tubes e supported by the seat frame a.
Patent GB-407130-A (GB)
Title: Improvements in or relating to show case clamps
IPC: A47F3/12
Filed: 1932-10-28
Abstract: 407,130. Clamps; shelves; brackets. HEUMANN, G., 84, Luxemburgerstrasse, Cologne, Germany. Oct. 28, 1932, No. 30306. [Class 44.] A clamp for connecting rods and plates in a variety of ways for building up shelf systems, such as for shop windows, comprises two U-shaped members connected together adjustably or integral with one another, each being provided with a clamp screw working in one side of the U and having a pressure disc at the end ; the pressure disc is preferably shaped to give a good grip on rods as well as plates. In its simplest form the clamp is composed of two parts such as b in Fig. 7 integral with one another and having any edge of one joined to any edge of the other, thus giving a variety of shapes. In another form, the two U-shaped members are connected by a screw through the base parts, so as to swivel on one another and be clamped in any position. In the construction shown, one member a has two flanges g, h, each having an aperture through which a screw f can pass to attach the other member b in various positions, the member b having holes l in one side and the base to receive the screw f. The flange h may be cut and bent out of the side of the member a. The flange h may be used as a support for a plate clamped in the member a. Two members similar to the member a but without the flange h may be used, connected together by a screw through the two flanges g. The pressure plates e have flat portions to grip plates and grooves across their centres to grip rods, as shown.
Patent GB-1410755-A (GB)
Title: Tricyclic substituted aminoalcohols and the preparation thereof
IPC: D07B3/04
Filed: 1974-07-09
Abstract: 1410755 Propanolamines BOEHRINGER MANNHEIM GmbH 9 July 1974 [14 July 1973] 30356/74 Heading C2C Compounds of the general formula (X=O, S, OCH 2 , CH 2 CH 2 , CH=CH; A=C 2-5  alkylene; R 1 =C 1-3  alkyl; R 2 =Ph, cyclohexyl) and their salts are prepared by reacting a compound of the formula with ZCH 2 CH(OR 3 )CH 2 OR 2  (one of Y, Z= reactive atom or group and the other =NHR 1 ; R 3 =H or R 3 +Z=valency bond), optionally followed by salt formation. The preparation of starting materials of both the above general formulae and 6,11-dihydrodibenz[b,e]oxepin-11-ylacetic acid and its ethyl ester, 6,11-dihydrodibenz[b,e]oxepin-11-ylethanol and 11 - mesyloxyethyl - 6,11 - dihydrodibenz - [b,e]- oxepine is described. The above compounds are cardiovascular agents, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-466256-A (GB)
Title: Improvements in and relating to the welding of thin-walled tubes to thick-walled containers and the like
IPC: F16L41/08
Filed: 1936-11-07
Abstract: 466,256. Welding tubes into containers &c. WITKOWITZER BERGBAU-UND EISENHUTTEN GEWERKSCHAFT, and BELOHLAVEK, B. Nov. 7, 1936, No. 30410. Convention date, April 6. [Class 83 (iv)] In welding a thin-walled tube 2 to a thick walled header or container 1, a bar 4 of similar diameter to the tube is first welded in at 5 and is then bored out to the diameter of the tube 2 which is finally welded at 10 to nozzle thus formed. The hole 3 may be counterbored to provide a seating for the bar 4 and a conical seating for the weld material 5. The upper part of the bar is initially bored out at 41. A press punch located within the header may be used to round off the metal at 6 and unite the end of the bar to the part 1. In a modification, Fig. 2, when the nozzle 7 to be welded in is already formed, a conducting mandrel 8 of steel or copper is fitted within the nozzle with an intermediate layer 9 of metallic paste to ensure good conduction of heat. The mandrel 8 is removed after the welding. The punch for rounding the part 6 may. also serve to compact the weld 5.
Patent GB-1520884-A (GB)
Title: Power transmission methods and systems
IPC: H02J3/36
Filed: 1975-07-22
Abstract: 1520884 HVDC power transmission NI INST POSTOYAN TOKA 22 July 1975 30530/75 Heading H2F A method of controlling an A.C.-D.C. converter substation divided into two halves, each half including a plurality of bridge circuits for feeding a D.C. transmission line of one polarity, comprising determining the number of bridge circuits which are to be excluded from operation (e.g. for maintenance), selecting, according to the predetermined power requirement a sequence of possible bridge circuit combinations arranged in order of increasing transmission power loss, selecting the first combination in said order which contains no excluded bridge circuit and controlling the current drawn by each bridge circuit according to a predetermined relationship between the predetermined power requirement and a selected bridge circuit combination whereby to minimize the power loss of the system. The specification describes a substation having up to four bridges in each half and explains how the optimum number of bridges in each half can be selected so as to give the minimum transmission power loss in the system for a given power transmission requirement.
Patent GB-917737-A (GB)
Title: Improvements relating to gramophone devices
IPC: A63H3/33
Filed: 1960-09-08
Abstract: 917,737. Gramophones; talking dolls. MATTEL Inc. Sept. 8, 1960 [Feb. 25, 1960], No. 30579/61. Divided out of 917,736. Drawings to Specification. Class 40 (2). The description is the same as in Specification 917,736, but the claims are to the mechanism, rather than the doll.
Patent GB-328545-A (GB)
Title: Improvements in machines for moulding bricks, tiles, road setts and the like
IPC: B28B13/04
Filed: 1928-10-23
Abstract: 328,545. Mackenzie, D. G. Oct. 23, 1928. Cylinder machines; delivery; feeding. - Comprises improved fee d and delivery means for the machine described in Specification 281,346. The feed pusher comprises a main portion 3, Fig. 1, slidable upon the lower wall 1<1> of the hopper 1<11>, and a head 4 pivotally supported on the spherical head of a stud 5 attached to the part 3 in such a manner that it may cant to accommodate itself to the material. A spring 7 surrounds the stud 5 and bears against the parts 3, 4. Brackets 12 on the member 3 slidably engage a plate 10 scoured to the wall 1<1>, a cover 13 preventing access of material. The wall 1<1> is pivotally supported by short links 2. Movement is imparted to the pusher by a lever 14 connected by a link 19 to a two-armed lever 17 carrying a roller 20 engaging a cam 22. To increase the speed of the machine, the pallets are fed from the magazine by a pair of successively-acting pawls, or by a single pawl actuated by a cam at increasing speed. Fig. 8 shows a pair of pawls 34, 35 carried by levers 36, 37 connected by links 38, 39 respectively to opposite ends of an arm 42 secured to a crank disc 40, the arrangement being such that the pawl 34 first engages a pallet projection at slow speed and is followed up by the pawl 35 at increased speed. The pawls are provided with pivoted nose-pieces 43 and are disengaged by a cam-plate 52 against the action of springs 50. Fig. 14 shows a single pawl actuated by a cam 57 engaging the pawl lever 58, so as to move at progressively-increasing speed. The pallets are raised to receive the bricks &c. by loose rollers 27<1>, 27<3> 27<5>, 27<7>, Fig. 8, supported by levers 30<1>, 30<3>, 30<5> and 30<7> balanced by weights 32<1>, 32<3>, 32<5>, 32' of successively-increasing amounts. During the traverse of a pallet, the rollers are lowered by a frame 33 engaging 'the weights. A cam surface on the disc 40 raises the frame through a roller 46, link 48 and coupled levers 49.
Patent GB-1080465-A (GB)
Title: Electrical responsive controls
IPC: H02P9/04
Filed: 1964-08-04
Abstract: 1,080,465. Automatic speed control. A.O. SMITH CORPORATION. Aug. 4, 1964 [July 17, 1963], No. 30626/64. Heading G3R. The frequency of an alternator 2 is kept constant by a device which adjusts the throttle of its driving engine 1 or power to a driving electric motor in response to the output of two circuits tuned above and below the desired frequency, and of a further circuit which derives a load signal. For an engine, adjustment is effected by an electromagnet 9 supplied from a rectifier bridge 21, two of the rectifiers being thyristors 26, 28 triggered by peaking transformers 35, 35' supplied through a magnetic amplifier 15; thus, the thyristors conduct for a portion of each cycle depending on the current in control windings of the magnetic amplifier. Two of these, 39, 40 are supplied in opposition through rectifiers 56, 56' from tuned circuits 59, 62 and 59', 62', 64; additional capacitors 63, 63' may be switched by 65, 65' to allow for a centre frequency of either 50 or 60 c.p.s. Rheostats 68, 68' and 70 provide course and fine adjustment. A further control winding 41 carries a load signal derived from voltage transformers 50, 50', 50" and current transformers 72, 73, 74. An LCR network 91. . .95 is provided to give the load signal circuit an appropriate time constant. A fourth control winding 42 provides negative feedback of the electromagnet current to stabilize the system.
Patent GB-1120996-A (GB)
Title: Bleaching compositions for hard surfaces
Inventor: DAS BALARAM
IPC: C11D3/32
Filed: 1965-07-20
Abstract: A scouring-powder bleaching composition comprises an inorganic perborate, e.g. sodium perborate, together with an activator mixture consisting of urea and an alkali-metal phosphate. The composition may also contain surface-active agents, fillers, alkaline building materials, abrasives, perfumes and/or germicides.
Patent GB-141643-A (GB)
Title: Manufacture of mono-azo-dyestuffs
IPC: C09B29/08
Filed: 1918-12-10
Abstract: Monoazo dyes are obtained by coupling an aromatic diazocarboxylic acid with the N-methyl-w-sulphonic acid derivative of an aromatic aminocarboxylic acid (capable of being coupled and diazotized) and finally eliminating the methyl-w -sulphonic acid group.  The products are mordant dyes, dyeing wool yellow to orange shades and giving similar tints on chrome-printed cotton, and may be used as parent materials for secondary disazo dyes. Examples are given of the preparation of 4-aminoazobenzene-3:31-dicarboxylic acid, 4-aminoazobenzene-2 : 31-dicarboxylic acid, 4-aminoazobenzene-3 : 41-dicarboxylic acid, and 4-aminoazobenzene-3 : 21-dicarboxylic acid. N-Methyl-w-sulphonic acid derivatives of the aminocarboxylic acids referred to are prepared by heating a solution of the sodium salt of the aminoacid with sodium formaldehyde bisulphite solution.
Patent GB-342791-A (GB)
Title: Improvements in and relating to rotary machines for the compression or propulsion of fluids
IPC: F01C21/10
Filed: 1929-10-12
Abstract: 342,791. Rotary pumps. GREENFIELD, F. C., Merevale, Sutton-at-Hone, near Dartford, Kent. Oct. 12, 1929, No. 30963. [Class 110 (iii).] Movable-abutment type ; packing drums ; arrangement of bearings.-In a screw pump in which a right-handed screw and a left-handed screw mesh without the teeth touching the rotors have quadruple threads, the pitch in each being equal to the distance between the inlet port and the delivery. Helical packing springs 31a fit in grooves on the peripheries of the threads. Double-acting ball thrust bearings 16 and 20 on one end of each rotor shaft 3b and 2b are axially adjustable to position the rotors 3 and 2, the bearings being locked in position by nuts 17 and 21 respectively. A housing 19 on the driving rotor is also adjustable and has a locking ring 35. Lubricating oil supplied to the various bearing points is led to the interstices between the meshing threads for sealing purposes. In a modification two screw pumps run on the ends of two shafts, the threads of two rotors on each shaft being opposite handed for balancing purposes. The pump can act as a two stage compressor. Another proposed form comprises a central screw meshing with several other screws.