baber/WOPTO huggingface dataset:
Patent GB-924979-A (GB)
Title: Improvements in or relating to machine tools
Inventor: SEIFERT WOLFGANG
IPC: F16C3/22
Filed: 1961-11-20
Abstract: 924,979. Lubricating. GROSSDREHMASCHINENBAU " 8MAI" KARL-MARXSTADT VEB. Nov. 20, 1961, No. 41450/61. Class 12 (3). [Also in Groups XXVI and XXVIII] Drive apparatus for the lubricant pump 18 of a machine tool having first and second carriages displaceable by respective transmission means for movement on guide paths comprises first eccentric means, e.g. a disc 4, operatively connected to the drive transmission means of the first carriage, and second eccentric means, e.g. a ring 8, mounted about the axis of the first means and operatively connected to the second carriage with a peripheral surface to engage a plunger 17 of the pump 18, which may be spring-loaded. In the form shown, the disc 4 is rotatably mounted loosely, and against displacement on a shaft 2, and the ring 8 is connected through a dog 9 to a dog-plate 6, secured to the shaft 2 and having a pin 7 therethrough. The pump 18 is secured to the housing 1 of the first carriage in which is mounted a shaft 12 connected to a rack bar via a pinion 13 secured thereon for power operation. On the shaft 12 is secured a gear-wheel 11 to engage toothing 10 on the shaft 2 with a control wheel 3 for longitudinal displacement of the first carriage. The disc 4 has a gear-wheel 5 thereon engaged by a gearwheel 15 operatively connected through a gear-wheel 16 and intermediate elements to a drive spindle (also otherwise operable) for driving a second carriage transversely to the first.
Patent GB-923594-A (GB)
Title: Production of ethyl acrylate
Inventor: BELLRINGER FREDERICK JAMES
IPC: C07C69/54
Filed: 1960-12-02
Abstract: A process for the production of ethyl acrylate comprises continuously feeding a mixture containing acrylic acid and at least one mole of ethanol per mole of acrylic acid into a reactor which is maintained at an elevated temperature and which contains an acid catalyst, continuously distilling overhead a fraction containing ethyl acrylate and substantially all the water produced in the esterification or introduced with the feed, and controlling the concentration of polymeric material by continuous removal of a liquid stream containing polymeric material from the reaction mixture.  The distillation may be effected in the presence of an entrainer such as ethyl acetate or ethyl acrylate and the former may be produced in situ by the use of a feed to the reactor comprising a mixture of acrylic and acetic acids.  Ethyl acrylate and entrainer maybe recovered from the overhead fraction by, for example, azeotropic distillation or extractive distillation, the entrainer being preferably returned to the reactor.  The acid catalyst is preferably sulphuric acid.  The liquid stream continuously removed from the reactor may be treated to separate volatile material from polymeric material, the volatile material preferably being returned to the reactor. Examples are given.
Patent GB-1442437-A (GB)
Title: Thread tensioning mechanism for a sewing machine
IPC: D05B47/00
Filed: 1973-09-04
Abstract: 1442437 Thread tensioning in sewing machines SINGER CO 4 Sept 1973 [13 Nov 1972] 41501/73 Heading DIG The force acting on the discs of a thread tensioner in a sewing machine is derived from the force which a magnet 52 exerts on a lever 42. The lever fulcrum is a stud 51 and by rotating the magnet about the stud 56 the mechanical advantage of the lever may be altered. Alternatively, or in addition, the air gap between the magnet and the lever may be altered. The force is transmitted via the other arm 54 of the lever to a rod 43 which presses the discs together. A known arrangement for releasing the tension when the presser foot is raised is provided via a cam (36, Fig. 1 not shown), a rod 38, levers 39 and 40 acting on the lever 54.
Patent GB-1356790-A (GB)
Title: Fluid pressure supply apparatus
IPC: H01R43/042
Filed: 1970-08-28
Abstract: 1356790 Jointing by stamping SMITHS INDUSTRIES Ltd 6 Aug 1971 [28 Aug 1970 28 Aug 1970] 41525/70 and 41526/70 Heading B3Q [Also in Divisions B5 and F1] Fluid pressure supply apparatus comprises a fluid pressure source PF, a feed path 8, a return path 12, pressure relief valves 15, 16 connected in parallel between the paths, the valve 16 relieving pressure in path 8 at a lower pressure than the valve 15, and means selectively to render effective or ineffective the valve 16. The latter means may comprise a solenoid actuated valve 18 in series with the valve 16. The apparatus supplies fluid through a changeover valve 10 to a cylinder 1 which operates jaws which crimp together pairs of wires in a connecting tag. In operation the jaws start to close under a low pressure determined by the valve 16 and if the jaws meet no obstruction a switch is actuated to close the valve 18. When the pressure in the path reaches a set value (beneath that required to operate the valve 15) a switch 11 is actuated to cause valve 10 to changeover. The operation of valve 10 may be delayed by a fixed or variable resistance being positioned in parallel with the  winding of the solenoid of the valve 10.
Patent GB-1156129-A (GB)
Title: Packaged Charcoal Fuel.
Inventor: GRAMM WALTER PATRICK
IPC: C10L11/04
Filed: 1967-09-12
Abstract: 1,156,129. Packaged fuel. GREAT LAKES CARBON CORP. 12 Sept., 1967, No. 41660/67. Heading C5. Packaged fuel comprises charcoal impregnated with a paraffinic hydrocarbon and enclosed in a plastic container consisting of a 2- or 3-ply laminate of which at least the inner ply is coated regenerated cellulose. The other plies may be coated polypropylene, nylon, or coated regenerated cellulose, and the coating is a solution of an adhesive polymer. The charcoal may be in lump or briquette form, e.g. with starch binder, and may be derived from coal or lignite, hardwood, e.g. oak, hickory or ash, or from saw-dust bark or corn cobs. The hydrocarbon should be in the boiling range 350‹ to 400‹ F. (i.e. about 176‹ to 205‹ C.), and may comprise 10 to 20% b.w. of the fuel. Thicknesses and weights of the plastics plies are given. Reference has been directed by the Comptroller to Specification 1,074,914.
Patent GB-1274052-A (GB)
Title: Improvements in or relating to the moulding of synthetic resins
IPC: B29C41/38
Filed: 1969-08-21
Abstract: 1,274,052. Mould lined with glassy material. MITSUBISHI PETROCHEMICAL CO. Ltd. 21 Aug., 1969 [21 Aug., 1968], No. 41863/69. Heading B5A. [Also in Division C1 The moulding surfaces of a mould for moulding a synthetic resin is coated with a glassy substance ,e.g. porcelain enamel. The resin is charged into the mould in the form of granules or powder and the mould may be rotated about two axes during heating.
Patent GB-1448483-A (GB)
Title: Hot melt size and yarn sized therewith
IPC: D06M15/507
Filed: 1973-09-06
Abstract: 1448483 Textile size compositions BURLINGTON INDUSTRIES Inc 6 Sept 1973 [7 Sept 1972] 41977/73 Headings C3R and C3P [Also in Division D1] A non-aqueous textile size composition comprises a film-forming thermoplastic polymer which is water-soluble or aqueous alkali-soluble and a melt-miscible solid modifier selected from aliphatic and aromatic mono- or poly-carboxylic acids, partial esters of polycarboxylic acids, non-polymeric polyhydric alcohols, phenolic acids and polyhydric phenols, the composition being substantially tack-free when solid. The composition may include a yarn lubricant, a polyurethane and polyethylene glycol being used in the examples. The examples describe compositions comprising (i) a copolyester derived from dimethyl isophthalate, dimethyl 5-sodiosulphoisophthalate and diethylene glycol with one or more of the following compounds : adipic, sebacic, azelaic, succinic and benzoic acids, sorbitol, mannitol, erythritol, salicylic acid, 2,5- and 3,5-dihydroxy benzoic acids, 2,7-naphthalenediol and monoethyl terephthalate, (ii) a terpolymer containing 56% ethyl acrylate, 33% methyl methacrylate and 11% methacrylic acid with adipic acid, and (iii) a vinyl acetate copolymer containing 5À7% of crotonic acid with azelaic acid.
Patent GB-1279651-A (GB)
Title: Improvements in soluble ladder spiro polymer
IPC: C08F36/00
Filed: 1969-08-22
Abstract: 1279651 Cyclized polyallene UNIROYAL Inc 22 Aug 1969 [29 Aug 1968] 41993/69 Heading C3P Cyclized 1,2-polyallene as a soluble ladder spiropolymer containing substantially no methylene unsaturation may be prepared by treating a soluble 1,2-polyallene containing a substantial proportion of methylene unsaturation with a Lewis acid, preferably in solution in a hydrocarbon, nitrohydrocarbon or ether solvent. The Lewis acid may be boron trifluoride, stannic chloride, titanium tetrachloride, aluminium chloride, aluminium bromide or aluminium iodide. The polyallene may be prepared by polymerizing allene in the presence of a catalyst comprising a transition metal halide and an aluminium alkyl, or a nickel or rhodium based catalyst, particularly a catalyst of formula (RhXY m ) n  where X is halogen, Y is a cyclic or non-cyclic mono-, di-, tri- or tetra-unsaturated hydrocarbon of 2 to 20 carbon atoms, m is 1 or 2 when n is 1 and m is 0À5, 1, 1À5 or 2 when n is 2 or 3, which may be used in conjunction with an ethylenically unsaturated compound. In examples allene is polymerized in the presence of (1 and 5) bis-(cyclo-octa-1,5- diene) dirhodium dichloride, (2) tris-(butadiene)- dirhodium dichloride, (3) bis-(cyclo-octa-1,5- diene) dirhodium dichloride and butadiene and (4) vanadyl trichloride and aluminium triisobutyl, and the products are cyclized in the presence of (1, 2, 4 and 5) boron trifluoride etherate and (3) titanium tetrachloride.
Patent GB-1262234-A (GB)
Title: Piperidine-spiro-oxirane derivatives
IPC: C08K5/3435
Filed: 1970-09-02
Abstract: 1,262,234. Stabilizing polymers. SANKYO CO. Ltd. 2 Sept., 1970 [2 Sept., 1969; 13 Aug., 1970], No. 42072/70. Headings C3P and C3R. [Also in Division C2] Polymers are stabilized by adding a novel piperidine-spiro-oxirane derivative of the formula wherein R 1  is hydrogen or a (C 1 -C 4 ) alkyl radical and R 2  is a (C 1 -C 8 ) alkyl radical, or a salt thereof. The stabilized polymeric composition preferably contains from 0À01% to 5À0% by weight of said compound based on the weight of the polymer. Examples describe the stabilization of polypropylene, polyethylene, nylon, polyurethane, P.V.C. and ABS copolymer.
Patent GB-1064676-A (GB)
Title: Trawler bobbins
Inventor: BENN JOHN
IPC: A01K75/06
Filed: 1962-11-09
Abstract: 1,064,676. Trawling gear. CHARLES BENN & SONS Ltd. Feb. 10, 1964 [Nov. 9, 1962], No. 42357/62. Heading A1A. A trawler bobbin comprises a tube I having end discs 2 to each of which is secured a plate 3 having a frusto-conical, hemispherical or like form arranged so that the peripheries of the plates 3 form a gap which is bridged by a band 4. The band 4 may be recessed and support a further band 5 which is in the form of a tyre. The two plates 3 may be of different shape.
Patent GB-1126543-A (GB)
Title: Improvements in or relating to thread guides
IPC: B65H57/06
Filed: 1966-09-22
Abstract: 1,126,543. Tensioning and guiding threads. PLUTTE, KOECKE & CO. 22 Sept., 1966 [5 Feb., 1966], No. 42390/66. Headings DID and DIM. A guiding and tensioning device for a thread 10 comprises an eyelet plate 1 with a slot 3 leading to the eyelet 2, 'the plate on one side of the slot 3 being curved at 1<SP>1</SP> and a part-circular guard plate 4 being provided having its centre portion 4<SP>1</SP> bowed away from the eyelet plate 1 and being joined e.g. rivetted, to the plate 1 only on one side of the rim portion 4<SP>11</SP>, the other side of the rim being curved away so that a self threading entry 7 'is provided. The guard plate 4 may be bent to form a portion 6 with a guide eye 5 or the eye may be formed in a separate rod (Fig. 7, not shown). The plate 1 may have apertures 13 to assist the removal of fly and a guide roller 9 may be provided on the bottom edge 8 of plate 4.
Patent GB-1358648-A (GB)
Title: Method and apparatus for controlling the traverse members of winding or twisting machines
IPC: B65H54/32
Filed: 1972-09-13
Abstract: 1358648 Traverse control in winding and twisting machines TEIJIN Ltd 13 Sept 1972 [16 Sept 1971 20 Sept 1971 13 June 1972] 42583/72 Headings DID and D1J [Also in Division G3] In a winding machine or spinning machine (e.g. a ring spinner) pulses are generated proportionally to the distance of traverse. The pulses are counted from the time the traverse passes a reference position, the number compared to a set valve and when equal thereto the traverse direction is reversed. The set valve is reduced progressively with time or with the number of traverses completed or alternatively the initial valve from which pulse counting is begun is increased, thus a taper ended package is generated. Traversing device and sensing means. The traverse is generated by a screw 6 rotated selectively by constant speed motors 8 or 8' in a clockwise or anticlockwise direction. Photoelectric detector 13 generates the reference position signal Sd when passed by arm 12 which may have substantial length in the traverse direction to give a prolonged signal whose start or finish may be used as the reference signal. Photoelectric detector 14 determines the lower limit L1 for winding off and a transfer tail may be wound just above this position. A perforated disc 9 in conjunction with a photoelectric detector 10 produces the traverse distance pulses Pd. Logic Circuits. The general circuit layout for the first embodiment is shown in Fig. 3. Pulse signals Pd are counted by a binary number counter 25 after reference signal Sd is received. The set valve is counted by binary number counter 26 and the count is reduced every time a traverse reversal occurs as signalled by flip-flop 28. Each digit of counter 26 by a coincidence discriminating circuit 27 which by signal Se, generated when 25 and 26 are equal, zeroes counter 25 and reverses the traverse by changing the output of flip-flop 28 from a to b or vice-versa. Outputs a and b, as shown in Fig. 2, selectively activate motors 8 and 8'. When a predetermined number of traverses are completed as determined by AND circuit 29 a winding complete signal Ss is generated. In an alternative embodiment Fig. 6 (not shown) the set valve remains constant but traverse reversal sequentially increases the initial valve from which pulse counting begins hence reducing the number of pulses from the reference position to the reversal point. Either of the above embodiments may have a pulse generator (36) Figs. 9 and 11 (not shown) to produce timed pulses Pt effective to reduce the traverse length instead of the signal from the traverse reversal.
Patent GB-977191-A (GB)
Title: Composition suitable for lining casting moulds and hot tops therefor
IPC: B22C23/02
Filed: 1963-10-29
Abstract: A refractory composition for lining the inner surface of moulds comprises 3 to 30% of an organic heat-insulating material, e.g. paper, paper pulp, fine sawdust or cork, 10 to 20% of a binder such as an organic glue, 0 to 10% of a fibrous refractory material such as asbestos or rock wool, 40 to 93% of a finely-grounded heavy refractory material, e.g. olinine, silica or silicates, magnesium oxide, fly ash, slags &c., and 2 to 60% of a finely-grained light refractory material such as infusorial earth, e.g. diatomaceous earth or kieselguhr, vermiculite or porous slags.
Patent GB-914912-A (GB)
Title: Improvements in or relating to glandless centrifugal pumps for liquids with built-inelectric motor
IPC: F04D15/00
Filed: 1960-12-12
Abstract: 914,912. Mounting rotors in dynamo-electric machines. MOSER, H. Dec. 12, 1960 [Dec. 14, 1959], No. 42650/60. Class 35. [Also in Group XXVI] In a glandless electric-motor driven centrifugal pump the impeller is placed between the two journal bearings, the bearing at the inlet side of the impeller being hollow and of sufficiently large diameter to accommodate the axial liquid inlet to the impeller. In the form shown, the motor rotor 5 and integral impeller 8 are mounted between bearings 10, 13 of equal diameter to equalize axial thrust. The stator is protected from the output pressure 23 by a sleeve 15 which may extend through the gap to support the non-driving end bearing, as shown. Both bearings are placed between high and low pressure to provide forced lubrication by the pumped liquid, e.g. polluted hot water. A direction indicator 19 is provided. The bearings are resiliently supported by elastic rings 11, 14, respectively. In a modification (Fig. 4, not shown) the motor-end bearing is placed between the rotor and the impeller, and is connected on onse side directly to the high-pressure side and on the other to the low-pressure side through a bore in the rotor shaft. In this construction, removal of the stator does not part the motorend bearing which serves, due to hydraulicallyinduced axial motion of the rotor to cut off the high-pressure side. The low-pressure side is cut off by a non-return valve in the rotor bore. In a modification of this arrangement (Fig. 5, not shown) the rotor may be hollow to accommodate the motor-end bearing, the rotor being of solid iron or sintered iron-copper powder faced with copper. In a further modification, the motor rotor is situated outside the stator and is supported at its non-driving end by a bearing. This bearing may be of greater diameter than that at the pump in which case the non-return valve which prevents flow from the low-pressure side when the stator is removed, acts as a reducing valve providing an intermediate pressure within the rotor, and additional blades are provided on the outer face of the impeller, to equalize the thrusts of the bearings. At least one bearing face is hard, e.g. of chromium plating.
Patent GB-1523474-A (GB)
Title: Data carrier for optical read-out
IPC: G11B7/24062
Filed: 1975-10-17
Abstract: 1523474 Optically readable records THOMSON BRANDT 17 Oct 1975 [18 Oct 1974] 42814/75 Heading G5R An optically readable data carrier has an embossed pattern 4 representative of recorded data provided at a surface 10 of a substrate 1 which is transparent to the read beam, a metal layer 2 on the embossed pattern and a protective layer 3 transparent to the read beam overlying the metal layer 2, the thickness of the metal layer 2 being selected so that it only partially reflects the read beam whereby the record can be read selectively either by transmission or reflection of the read beam. The embossed pattern 4 may comprise constant width and constant depth depressions with varying length and spacing representing the recorded information, the track being a spiral in a disc. Metal layer 2 may cover just the record track or the whole of surface 10 and may be a 30 Angstrom thick layer of gold or silver, formed by cathode sputtering or vacuum vaporization, reflecting 50% of the incident read beam. Layer 3 may be of the same material as layer 1 or a different material, and may cover layer 2 without penetrating into depressions 4 or so that it does penetrate the latter. The layer 3 may be formed by dipping the substrate 1 coated with metal layer 2 into a collodion solution dissolved in ether and then drawing the disc from the solution at a constant rate.
Patent GB-1342760-A (GB)
Title: Substituted phthalazines
IPC: C07D/
Filed: 1971-09-14
Abstract: 1342760 Phthalazines DAIICHI SEIYAKU CO Ltd 14 Sept 1971 [14 Sept 1970] 42860/71 Heading C2C Novel compounds I (in which each of R 1 , R 2 , R 3  and R 4  is H or C 1-6  alkyl) and their acid addition salts, are prepared by reacting 1-hydrazinophthalazine, or an acid addition salt thereof, with a compound of formula O = C(R 1 )-C(R 2 ) = CR 3 R 4 .  Antihypertensive pharmaceutical compositions for oral or parenteral administration comprise a compound I, or an acid addition salt thereof, together with a pharmaceutical carrier.
Patent GB-1129200-A (GB)
Title: High frequency field effect transistor
IPC: H01L21/74
Filed: 1967-09-21
Abstract: 1,129,200. Semi-conductor devices. ITT INDUSTRIES Inc. 21 Sept., 1967 [26 Sept., 1966], No. 42936/67. Heading H1K. The source region 6 of an insulated-gate field-effect transistor is shorted to an adjacent low resistivity contact region 18 of the same conductivity type as the, channel, region 16 by a metal layer 20 on the surface. The contact region 18 may be formed through the source region 6 as shown, or may be spaced from it, in which case the metal shorting: layer 20 lies partly over the protective insulating coating 9, which may be of silicon dioxide or nitride or of amorphous, silicon. The wafer containing the device is bonded to a conducting header 1, e.g. of Cu or Ag, and preferably comprises a practically degenerate body 8 on which the relatively low conductivity channel layer 16 is epitaxially deposited. The source, drain and contact regions 6, 7, 18 and a guard ring 19 are diffused into the layer 16, the contact region 18 extending right through or almost through to the underlying body 8. The contact region 18 and guard ring 19 may comprise parts of the same region. Electrodes 13, 15, 20 of A1 are then applied.
Patent GB-954008-A (GB)
Title: Improvements in change-speed transmission systems particularly for agricultural tractors
Inventor: SMITH FREDERICK JOHN
IPC: F16H3/66
Filed: 1962-06-28
Abstract: 954,008. Change-speed gear. FORD MOTOR CO. Ltd. June 28, 1962, No. 42994/63. Divided out of 949,075. Heading F2D. A change-speed planetary gear for agricultural tractors &c. comprises an input sungear 205 meshing the first pinions 207 of stepped planet pinions 207 . . . 210 mounted in a carrier 211 stationed by a brake Z to establish reduced forward ratios or reverse, selective engagement of clutches X<SP>1</SP>, W<SP>1</SP> coupling one or other of two sun-gears 218, 221 meshing the planet pinions 209, 208 to a drum 226 fast with an output shaft 223 for two reduced forward ratios, while alternative engagement of a clutch Y<SP>1</SP> instead couples a ring gear 214 to the output shaft 223 for reverse. Direct drive is established by disengaging the brake Z and instead engaging two of the clutches, e.g. X<SP>1</SP>, W<SP>1</SP>, simultaneously. The brake Z is a band brake, and the clutches and the brake are hydraulically engaged against spring bias. Alternatively, not more than two of the clutches and the brake may be mechanically engaged, hydraulically disengaged. As shown, a manually-controlled clutch U is engaged to connect a drive shaft 228, geared to an oil pump 227, through a train 201, 202 to the input sun-gear 205, and the output shaft 223 drives a manually controlled gear-box 225. As modifications, the ring gear 214 may be meshed with one or other of the planet pinions 207 . . . 209, thus permitting the end pinions 210 to be dispensed with, and the forward speeds may be overdrive, instead of reduced, ratios.
Patent GB-1150517-A (GB)
Title: Apparatus for Extruding Helical Webs on Cylindrical Members
IPC: B29C48/06
Filed: 1967-09-22
Abstract: 1,150,517. Coating cores by extrusion. PHELPS DODGE COPPER PRODUCTS CORP. 22 Sept., 1967 [28 Sept., 1966], No. 43343/67. Heading B5A. [Also in Division H1] A core 10, e.g. an electrical conductor, is provided with a helical web 12 of thermoplastic or thermosetting resin, by extrusion of the resin through a rotating die 38 via a passageway 42 which extends radially from a bore 40 to a position within the periphery of the die, see also Fig. 4 (not reproduced). Bore 40 accommodates core 10 and may be of such a diameter that a sheath of resin is formed on the core in addition to the web. Die 38 is mounted for rotation with a carrier 44 by means of a key 45 and the carrier is rotated by a variable speed electric motor 53 via gearing 50, 54. The pitch of helical web 12 may be varied by changing the ratio of the speed of operation of core transport mechanism (26), Fig. 2 (not shown), and the speed of rotation of die 38. A speed control (30) co-ordinates the speed of operation of the core transport mechanism and the feed of resin to the die, e.g. by change of speed of feed screw 36, so that the web remains of uniform thickness. The various speed changes may be effected automatically. Specific thermoplastic resins mentioned are polyethylene and polysulfone and a cooling apparatus (24), Fig. 2 (not shown), may be provided.