baber/WOPTO huggingface dataset:
Patent GB-320507-A (GB)
Title: Improvements in the external covering or coating of iron or steel pipes and other cylindrical bodies
IPC: B05C3/18
Filed: 1928-09-24
Abstract: 320,507. Stewarts &Lloyds, Ltd., Mitchell, J., and Smith, J. H. Sept. 24, 1928. Moulding pipes and tubes.-Iron or steel pipes &c. are covered externally with bituminous material by feeding the coating in the consistency of a mastic mass on to a rotating pipe in such a manner as to build up a continuous mass of spiral form on the pipe wall and pressing down the convolutions, as they are applied, to form a seamless covering. As shown, the pipe 16 is rotatably supported in head and tail stocks and is covered with bituminous material supplied by a hopper 10 having a curved wall to embrace the pipe, the leading portion of such wall being recessed and furnished with a discharge orifice. The hopper is carried by levers- 9<b> pivotally mounted on a carriage 6 which is traversed longitudinally of the pipe by a screw 4 and is movable in a cross slide 5 by weights 15 to keep the hopper up to the pipe, rollers 12 on one of the levers 9<b> acting as feelers. A suitable composition consists of 80 per cent by weight of bitumen and 20 per cent of asbestos wool &c., the composition being heated to 400-450 F. before use. The hopper is furnished with heating and stirring means. To secure adhesion of the coating, the pipe may be heated or coated with bituminous paint.
Patent GB-1489470-A (GB)
Title: Norbornene polymers
IPC: C08G61/08
Filed: 1975-06-27
Abstract: 1489470 Hydrolysed polymers SHOWA DENKO KK 27 June 1975 [4 July 1974 26 July 1974 13 Sept 1974] 27337/75 Heading C3P Homo- and co-polymers containing units of formula in which Z represents and is bonded to a carbon of a 5-membered ring by any two of bonds a to d, the remaining two bonds being filled by R<SP>1</SP> and R<SP>2</SP>, R<SP>1</SP> to R<SP>6</SP> each represent independently a hydrogen atom or a C 1-6  alkyl group, an endomethylene linkage can exist between the carbon atoms to which R<SP>3</SP> and R<SP>4</SP> are attached, q is 0 or 1, and m and n are each 0, 1 or 2; are hydrolysed either (i) in the presence of an acid to open the anhydrides rings to yield carboxyl groups, or (ii) in the presence of a base to open the anhydride rings to yield carboxylate salt groups of which the cation is alkali metal, alkaline earth metal or quaternary ammonium, or (iii) by treatment (ii) followed by acidification to yield products as in (i). In examples, acidic hydrolysis (i) or the acidification step (iii) is effected using HCl, H 2 SO 4 , H 3 PO 4 , p-toluene sulphonic acid, methane sulphonic acid, acetic acid or trifluoroacetic acid, and base hydrolysis using NaOH, KOH, LiOH, Ba(OH) 2 , Na 2 CO 3 , NaHCO 3 , triethylamine, tri - n - butylamine, or sodium acetate, propionate, laurate or phthalate. The starting polymers are homo-polymers of (a) 3,6 - methylene - 1,2,3,6 - tetrahydro - cisphthalic anhydride, (b) 5 - (5 - carboxybicyclo[2,2,1] - hept - 2 - enyl)acetic anhydride, (c) 3,6 - methano - 1 - methyl - 1,2,3,6 - tetrahydro - cis - phthalic anhydride, (d) 5,8- methano - 1,2,3,4,4a,5,8,8a - octahydronaphthalene - 2,3 - dicarboxylic anhydride, and (e) the 1,4,5,8 - dimethano analogue of (d), or are copolymers of (a) with a variety of different co-monomers mainly of similar structure to the main monomer.
Patent GB-1277090-A (GB)
Title: New azo dyestuffs and processes for their manufacture and use
IPC: C09B43/00
Filed: 1969-05-30
Abstract: 1277090 Basic azo dyestuffs CIBA-GEIGY AG 30 May 1969 [31 May 1968] 27444/69 Heading C4P The invention comprises basic azo dyestuffs of general formula and their tantomers, wherein D is a diazo component residue which may contain an azo group and contains at least one amino, hydrazino, or etherified hydroxylamino group that may be quaternated, the dyes being free from acidic groups imparting solubility in water. D is preferably a benze, naphthalene or at most bicyclic heterocyclic radical, the amino, hydrazino or etherified hydroxylamino group being linked thereto via a carbon chain optionally interrupted by a hetero-atom or which forms part of a ring. They are prepared by (a) reacting an azo compound with an amine, hydrazine or etherified hydroxylamine, (b) diazotizing an amine D-NH 2  and coupling to 2,6-dihydroxy- 3-cyano-4-methyl pyridine, or (c) quaternizing an unquaternated azo compound. The dyes dye wool, mordanted cotton and synthetic materials in yellow, orange and red shades.
Patent GB-158676-A (GB)
Title: Improvements in treads for boots and shoes and means for the attachment thereof
IPC: A43C13/04
Filed: 1919-11-08
Abstract: 158,676. Mote, E. Nov. 8, 1919. Protectors, securing.-Protectors a, Figs. 1, 3, and 4, are detachably held in place on soles and heels of shoes &c. by metal &c. plates b retained by plate springs d taking under bridge pieces c secured directly to the soles &c. The protectors may be of any form and made of rubber, leather, aluminium, &c. or, as shown in Fig. 5, may comprise a flanged ring a<2> of metal, preferably aluminium, and a filling of elastic material a<3>. In Fig. 3 the plates b are shown hinged to a centre piece e, but are retained by plate springs as before.
Patent GB-827303-A (GB)
Title: An improved burner for singeing fabrics
IPC: D02J3/16
Filed: 1956-09-10
Abstract: 827,303. Gas burners. SCHLANGEN, A. Sept. 10, 1956 [Sept. 9, 1955], No. 27655/56. Class 75(1) In a burner for singeing fabrics having a slit 11 for the discharge of combustion products, a second mixing chamber 4 is arranged downstream of a first mixing chamber 3 and a combustion chamber 7 having a pear-shaped cross-section is arranged downstream of the second mixing chamber 4, the openings, e.g. slits, between the chambers being in line. The second mixing chamber 4 and the combustion chamber 7 are formed by fireclay bricks. Ribs 9, 10 on the bricks at the upper part of the combustion chamber are brought to red heat by the combustion.
Patent GB-468774-A (GB)
Title: Arrangement of inductance coils
IPC: H01F17/04
Filed: 1934-10-08
Abstract: 468,774. Transformers; inductances. BOUCKE, H. Oct. 8, 1935, Nos. 27739 and 27740. Void. Convention dates, Oct. 8, 1934 and Jan. 10, 1935. [Class 38 (ii)] Two inductance windings 2, 3 are arranged on a common core 1 with their axes at rightangles and one of the coils 3 enclosing both the core and the other coil 2. By this means coupling between the coils is eliminated. The core may be of H-shape as in Fig. 1, and the inductance of coil 2 is varied by a movable plate 20. Inductance of the coil 3 is varied by moving it along the core 1. Alternatively the core may be in two parts 4, 5, Fig. 2b, and may have three limbs of which the centre one carries the inner coil 8. In a modification, Fig. 3b, a limited degree of coupling may be obtained between the coils by mounting the outer coil 12 so that its axis may be varied in relation to the axis of the inner coil 11. Coil and core dimensions for optimum results are indicated in the Specification. The coils may be used as high-frequency chokes with high frequency iron cores or the modification shown in Fig. 3b may be used as an intermediate frequency transformer. The chokes may also be used in the audio or low frequency range, 'e.g. as mains chokes having two magnetically independent coils.
Patent GB-1416503-A (GB)
Title: 7-hydroxyhalophenylacetamido-3-heterocyclicthiomethyl cephalos porins
IPC: C07D249/04
Filed: 1973-06-12
Abstract: 1416503 Cephalosporins SMITHKLINE CORP 12 June 1973 [14 June 1972 15 Sept 1972 11 May 1973] 27794/73 Heading C2C Novel cephalosporins, having antibacterial activity, of formula wherein M is hydrogen, alkali metal or NH 4 , X is F, Cl or Br and Het is a 5- or 6-membered heterocyclic ring containing carbon and up to four N, O or S atoms, the heterocyclic moiety being substituted with up to 2 C 1 -C 4  alkyl, C 1 -C 4  alkenyl, C 1 -C 4  alkoxy, C 1 -C 4  alkoxy, C 1 -C 4  alkyl, CF 3 , OH, halogen, hydroxy- (C 1 -C 4 )alkyl or SR, R being hydrogen or C 1 -C 4  alkyl, are prepared by acylation of the appropriate 7-amino-3-heterocyclicthiomethyl cephalosporin with a 3-halo-4-hydroxyphenylglycine in which the amino group is protected with a removable protecting group such as t-butoxycarbonyl. Following acylation, the protective group may be removed by trifluoroacetic acid, and the resulting salt converted to the Zwitterionic product by means of a basic ion exchange resin. The compounds of Formula I may also be prepared by displacement of the 3-acetoxy group of a 7- acylated - 3 - acetoxymethylcephalosporin with a suitable mercapto-heterocyclic compound under basic conditions. The preparation of 7-[DL-α-amino-α-(3-fluoro-4-hydroxyphenyl) acetamido] - 3 - (5 - methyl - 1,3,4 - thiadiazol- 2 - ylthiomethyl - 3 - cephem - 4 - carboxylic acid, 7 - [DL - α - amino - α - (3 - fluoro - 4- hydroxyphenyl)acetamido] - 3 - (1 - methyl- 1,2,3,4 - tetrazol - 5 - ylthiomethyl) - 3 - cephem- 4 - carboxylic acid, 7 - [DL - α - amino - α- (3 - fluoro - 4 - hydroxyphenyl)acetamido] - 3- (1,2,3 - triazol - 4 - ylthiomethyl) - 3 - cephem- 4 - carboxylic acid and 7 - [DL - α - amino - α- (3 - chloro - 4 - hydroxyphenyl)acetamido] - 3- (1 - methyl - 1,2,3,4 - tetrazol - 5 - ylthiomethyl)- 3 - cephem - 4 - carboxylic acid is described (Examples 6 to 9). N - t - butoxycarbonyl - 3 - fluoro - 4 - hydroxyphenylglycine is prepared by reacting 3-fluoro - 4-hydroxyphenylglyeine with t-butoxycarbonyl azide in the presence of magnesium oxide. The corresponding 3-chloro and 3-bromo cornpounds are prepared in a similar manner.
Patent GB-304359-A (GB)
Title: Improvements in or relating to balanced electric protective arrangements
IPC: H02H3/30
Filed: 1927-10-19
Abstract: 304,359. Reyrolle & Co., Ltd., A., and Atkins, H. C. Oct. 19, 1927. Condensers.-The capacity couplings, by which high frequency control currents are superimposed on power conductors for balanced protective arrangements, are constituted by the usual post insulators or by a switch insulator bushing. In such insulators the power conductor V is surrounded by concentric conducting sheaths, and the high frequency apparatus can be connected through a terminal V<3> to the last but one sheath or to the outermost sheath X if this is insulated from earth.
Patent GB-249181-A (GB)
Title: Improvements in steam condensers
IPC: F28B1/02
Filed: 1924-11-20
Abstract: 249,181. Fothergill, H., and Hillier, H. Nov. 20, 1924. Surface condensers. - In steam condensers of the tubular surface type, a space e below a portion s of the condensing-surface communicates with the steam inlet b so that steam passes freely through the space and heats the condensate falling from the tubes, and trays or plates p direct the falling condensate to a channel h leading to the condensate outlet c so as to prevent the condensate coming into contact with the lower portion s<1> of the condensing surface. According to modifications, multiple steam spaces .are arranged in tiers; air is withdrawn from one side of the condenser only, and the steam-inlet space f on the opposite side is carried down to the base; the air and condensate are removed at a common outlet in the base and the steam spaces are of wedge shape being restricted at the central passage.
Patent GB-668656-A (GB)
Title: Improvements in shoulder pads
IPC: A41D27/26
Filed: 1949-10-31
Abstract: 668,656. Shoulder pads. WILDING, E. J., and PADCRAFT, Ltd. Sept. 14, 1950 [Oct. 31, 1949], No. 27877/49. Class 141. A shoulder pad of the type which is constructed flat and adapted to be bent over the shoulder in use, is formed of yielding material having the edge thereof intended to lie at the junction of a shoulder and a sleeve of the garment shaped to the form of a concave curve in the plane of the pad. As shown, a body 1 has a concavely curved edge 2 and tapers in thickness rearwardly and outwardly along this edge 2. The upper and lower surfaces are faced with relatively stiff layers 4, 5 secured by stitching 6. To one surface is also secured a layer 7 of soft fabric e.g. felt having a concave front edge 9 preferably turned over to form a fold 15 enveloping the edge of a further sheet 8. If desired, the edge 2 may be straight or the body 1 omitted altogether.
Patent GB-937005-A (GB)
Title: Apparatus for effecting the removal of foreign bodies from carded webs
Inventor: INGRAM RALPH OSBORN
IPC: D01G15/94
Filed: 1961-08-01
Abstract: 937,005. Burr crushing rollers. KING'S LEA CORPORATION. Aug. 1, 1961, No. 27889/61. Class 120 (1). Burr-crushing rollers for use in combination with a worsted carding engine are so interconnected as to avoid backlash. In one form the crushing rollers 16, 17 are interconnected by helical gears 48, 49 and are driven from a motor 45 through further helical gears 46, 47. An alternative form has each roller 16, 17 driven by independent motors electrically synchronized. Specification 444,043 is referred to.
Patent GB-976277-A (GB)
Title: New oestradiol esters and process for their production
IPC: C07J17/00
Filed: 1963-07-15
Abstract: 976,277. Estradiol esters. E. MERCK A.G. July 15, 1963 [July 17, 1962], No. 27923/63. Headings C2C and C2U. The invention comprises the 17-[#-tetrahydrofuryl-(2)-fatty acid esters] of oestradiol in which the acids contain a total of 6 to 8 carbon atoms, and their preparation by esterification of oestradiol with a suitable acid or derivative thereof, or by hydrolysis or hydrogenolysis of a 3-ester or 3-ether of the 17-ester. 3,17-Diestro formed as by-products in the first process may be separated by crystallization or chromatography. Examples are given. 3,17- Diesters and 3-ethers-17-esters of oestradiol used as starting materials are prepared by esterification of oestradiol or of a 3-ether or 3-ester thereof. Methyl #-[tetrahydrofuryl-(2)]-propionate is prepared by esterification of the acid. Tetrahydrofuryl-(2)-acetic acid chloride is prepared by reacting 2-bromomethyl-tetrahydrofuran with sodium cyanide to give 2-cyanomethyl-tetrahydrofuran, hydrolysing this to tetrahydrofuryl-(2)- acetic acid, and reacting this with thionyl chloride. #-[tetrahydrofuryl-(2)]-butyric acid chloride is prepared from the acid and thionyl chloride. The esters of the invention, which have oestrogenic action, may be made up into pharmaceutical compositions with suitable carriers. Solutions and suspensions in ampoules for parenteral application are referred to.
Patent GB-246263-A (GB)
Title: Improvements in or relating to the coupling or connection of electrical wires and the like
IPC: H01R4/24
Filed: 1924-11-22
Abstract: 246,263. Reid, L. H. Nov. 22. 1024. Binding-posts; needle-point couplings; wire couplings.-A hollow metal cup A with a series of sharp-edged teeth B for cutting into the wires G, leaving spaces C of regular or varying size, is secured by a screw E to a washer or base F. Slots H may be cut to allow the teeth to be slightly springy.
Patent GB-459390-A (GB)
Title: Improvements in electric resistance alloys
IPC: H01B1/02
Filed: 1935-10-11
Abstract: An electric resistance alloy, of which nickel forms the major part, comprises 0,01-0,2 per cent of calcium, 0,01-0,5 per cent of zirconium and 0,1-1,0 per cent of aluminium; such alloy also comprises either 15-25 per cent of chromium or 7-22 per cent of chromium and 8-30 per cent of iron; in either case, the alloy may also comprise 0,02-2,0 per cent of manganese or 0,2-2,0 per cent of silicon or both, and the nickel may contain up to 2 per cent of cobalt. with water from the pipe 4, draining away the lower layer, and pumping the upper layer into an agitator 24 where it is mixed with ammonium sulphate from an elevator 28.  The purified inhibitor rises to the top of the ammonium sulphate solution, which is run off to a tank 30 communicating through a pump 36 and pipe 37 with the pipe 11, and the inhibitor is run into a tank 34.
Patent GB-529301-A (GB)
Title: Improvements in or relating to gear finishing machinery
IPC: B23F21/28
Filed: 1939-10-18
Abstract: 529,301. Lapping or burnishing gears. NATIONAL BROACH & MACHINE CO. Oct. 18, 1939, No. 28095. Convention date, Jan. 16. [Class 60] [Also in Group XXII] In finishing an involute gear by running the gear in mesh with a gear-like tool of conjugate form, the tool gear, which may be either a shaving, lapping, or burnishing tool is arranged to operate when new at a pressure angle of between 19 degrees and 15 degrees irrespective of the nominal pressure angle of the gear being finished. A shaving tool gear 10, Fig. 1, is of the usual form with straight or diagonal grooves on the faces and channels 13 to facilitate chip removal. Fig. 2 shows the profile of the usual tooth 11 with a pressure angle of 22¢ degrees for finishing a gear of the same pressure angle. According to the invention the profile is modified by thinning the tooth to the form shown in dotted lines at b, c, the profiles b being involutes derived from the same base circle B.C. as the profiles a. When in use the modified cutter operates with a lower pressure angle and with a smaller centre distance between gear and tool, the difference being indicated at d Fig. 3. The effective zone of the cutter is as shown at v Fig. 2, compared with the effective zone x of the unmodified cutter. If the gear to be finished has a low pressure angle, e.g. 12¢ degrees, the opposite modification of the tool is made to increase the working pressure angle to about 18 degrees when the tool is new. In this case the outside diameter is increased, and the profile made thicker and such a tool will have an operative zone which is farther from the centre than normal. In all cases as the tool is reground the operative pitch circles and also the pressure angle become progressively smaller reaching about 12 degrees at the end of the useful life of the tool. In the case of tool and work gears arranged on mutually inclined axes, the change in centre distance caused by modification of the profile necessitates a change in the crossed axes setting. This change may either be calculated or found by test. The pressure angle of the modified tool is not more than 19 degrees when new and gradually diminishes during its useful life to about 12 degrees.
Patent GB-460958-A (GB)
Title: Improvements in or relating to electric contacts
IPC: H01H85/20
Filed: 1936-10-16
Abstract: 460,958. Switch and fuse contacts. DONOVAN, E. T. G. Oct. 16, 1936, No. 28150. [Class 38 (v)] Blade and spring-clip contacts for switches, fuses, &c. have the clip member formed, as shown in Figs. 3 and 5, by a block a of conducting material.] on which is mounted a spring clip b, the latter being bent into an open foursided formation so as to embrace and grip the block a on all four sides, that is, around substantially its entire periphery. The spring clip is secured in position on the block by being formed with a slot b<2> in its upper face which engages a screw c passing downwardly into the block end securing the lead d in a transverse hole a<2>. Alternatively, two screws may be employed in which a wider slot b<2> is provided. The contacts are assembled in pairs in the fuse &c. base e as shown in Fig. 1, each contact housing having a T-shaped opening e<2> to permit the entry of the blade f and also to accommodate freely the head of the screw or screws c so that the contact has a limited floating movement for self-aligning purposes. The side b<1> of each clip b adjacent the block a is shaped to facilitate the entry of the blade therebetween.
Patent GB-473573-A (GB)
Title: An improved box for receiving bottles at house doors
IPC: A47G29/20
Filed: 1936-10-17
Abstract: 473,573. Boxes into which bottles can be delivered. MURDOCH, W. Oct. 17, 1936, No. 28320. [Class 18] A box attached to a house-door frame and into which a bottle can be delivered has an opening in the lid, and as the bottle is inserted through this opening it strikes the lower, part of a lever B pivoted at A between uprights D, and the hookshaped upper end of the lever swings over the top of the bottle and prevents it being withdrawn. The lower end of the lever passes through a false floor in the box and is hinged to a loose bar R so that, as the lever swings back on the insertion of a bottle, the bar R is pulled off the top of a block M and drops down to abut against the side face of the block. This prevents the lever B from being moved by an unauthorized person to uncover the bottle and access to the latter is obtained by resetting the bar R through a hole O. The box slides on to a bracket on the door frame and the door closes against that side of the box containing the hole O.
Patent GB-705112-A (GB)
Title: Improvements in or relating to book covers
IPC: B42D3/00
Filed: 1951-12-03
Abstract: 705,112. Book covers. ABBOT (KING'S LANGLEY), Ltd., BARTLETT, B. I., and PRICE, E. A. Nov. 19, 1952 (Dec. 3. 1951], No. 28328/51. Classes 16 and 146(1) A book cover comprises a comparatively stiff sheet 10 or 20 of cardboard or like fibrous sheet having a portion of the material of the sheet removed along a narrow band from one or both sides to form a groove 12 or grooves extending along the line of hingeing. The grooves may be formed in the top cover only or in both and a strip of flexible material 16 be secured to the walls of the groove or as in Fig. 4 extending into-the groove. As shown in Fig. 2, in a permanent binding, sheets 13 are secured as by rivets 14 between covers, 10. 11 each having a groove 12 and the strip 16 is secured, by adhesive, also round the back of the book. As shown in Fig. 4, a loose leaf binder has upstanding pins 18 from a rigid backing board 17 which extend through holes 19 in the sheets 13, and through holes 21 in the top cover 20 where a nut 22 on the screwed end of pins 18 engages a plate 23. The strip 16 in this 'case extends only round the one cover.
Patent GB-1434412-A (GB)
Title: Carburetters prosthetic foot
IPC: F02M23/09
Filed: 1973-06-14
Abstract: 1434412 Spray carburetters ZENITH CARBURETTER CO Ltd 14 June 1973 28373/73 Heading F1B The flow of supplementary air to the mixing chamber 19 in the induction passage 11 downstream of the valve 12 is controlled by flowrestricting valve 64 operated by a partiallyevacuated bellows 62. The bellows is subjected to atmospheric pressure, the carburetter air intake (pressure) or the mixing chamber pressure by direct connection to the chamber 56 or through an orifice 59, chamber 55 and conduit 61 to the carburetter air intake (or air cleaner). A valve 28 operable conjointly with the throttle valve 18 connects the space above the fuel 17 in the float chamber to vent 32 to atmosphere when the throttle valve is minimally open and to the carburetter air intake via a conduit 33 when the throttle valve is opened. The vent 32 may be connected to atmosphere through a canister of charcoal. A valve 65 providing a larger flow cross-section than the valve 64 is operated by the bellows 62 or a separate bellows to regulate the application of carburetter air intake suction to the float chamber. The rate of change of flow crosssection by the valve 65 is smaller than that by the valve 64. The valve 28 may control connection of the vent 32 to the conduit 20 only, the conduit 33 including a restriction (66), Fig. 3 (not shown), or respective valves may control the apertures in the valve seats 23 and 24. The air valve 12 is operated by a piston or diaphragm subject to the suction in the chamber 19. Supplementary air may be supplied to the induction passage of a fixed choke carburetter downstream of its throttle valve through a flow-restricting valve and a pressure regulator. The control of supplementary air and float chamber pressure provides compensation for atmospheric pressure variations.