baber/WOPTO huggingface dataset:
Patent GB-623094-A (GB)
Title: Improvements in feed scrolls for extruding machines and to related machines incorporating such scrolls
IPC: B29C48/03
Filed: 1946-09-19
Abstract: 623,094. Extruding rubber &c. REDFERN'S RUBBER WORKS, Ltd., and BROWN, F. E. Sept. 19, 1946, No. 28148. [Class 87 (ii)] [Also in Groups II and XXX] Rubber or other material fed into the nip between a feed roller 14 and a working roller 15 is worked or mixed in the space between the roller 15 and a casing 19, and is then conveyed axially by roller 15 (to the right, Fig. 1) through an extrusion head 28. The roiler 15 is supported at one end by a thrust bearing 38 and near the other end by a cylindrical part 27 of the head , 28, this cylindrical part wholly surrounding and engaging the flat-topped ribs 33 of a threaded bearing length of the roller. The grooves 34 of the threaded bearing length transmit freely to the extrusion head outlet all material delivered thereto by the working length 15 of the roller. The working length 15 is unsupported and has shallow grooves or, as shown, a shallow helical groove 23. The available cross-sectional area of the grooves 34 for the passage of the material is greater than that of the groove 23. The roller 15 is tapered within the extrusion head and carries other helical ribs 35 and grooves 36. The volumetric capacity of the tapered part may equal that of the bearing part. If the tapered part wears, the head 28 may be adjusted to lie further to the left, Fig. 1, by machining or grinding a ring 30. A third roller may be disposed over the roller 15, as described in Specification 536,421. Specification 548,339 also is referred to. According to the Provisional Specification the volumetric capacity of the grooves 34 is equal to that of the grooves 23.
Patent GB-1325363-A (GB)
Title: Phenolic colour couplers and their use in photographic silver halide emulsions
IPC: G03C7/34
Filed: 1970-06-10
Abstract: 1325363 Phenol derivatives MINNESOTA MINING & MFG CO 10 June 1970 [10 June 1969] 28206/70 Heading C2C [Also in Division G2] The invention comprises photographic colour couplers which include a grouping of the formula -NHCOY where Y represents an aryl, cycloalkyl, aryloxyalkylidene, alkaryloxyalkylidene, aralkylidene or arylamino group, and in which the nitrogen atom of this grouping is linked to a phenolic group in the ortho position relative to the hydroxyl group of the phenolic group, the phenolic group having substituents R and R<SP>1</SP> in positions ortho and para, respectively, relative to the -NHCOY group and R and R<SP>1</SP> independently represent a hydrogen atom or an alkyl group having at least 2 carbon atoms except that at least one of R and R<SP>1</SP> is an alkyl group and the alkyl group or groups covalently bonded to the aromatic ring or rings of the coupler contain a total of at least 12 carbon atoms, and in which a substituent X is present in the para position relative to the hydroxyl group and X is a hydrogen atom or a substituent which is capable of being expelled during the coupling reaction. The compounds may be prepared by acylation or halogenation.
Patent GB-216444-A (GB)
Title: Improvements relating to tobacco pipes
IPC: A24F1/08
Filed: 1923-11-09
Abstract: 216,444. Todisco, F. Nov. 9, 1923. Tobacco pipes.-In a pipe having in the smokepassage a baffle comprising an inner tubular element 3 near the bowl and an outer element 5 nearer the mouth, the element 5 is adjustable, as by a screw thread, in relation to a shoulder 7 on the element' 3 in order to control the smoke draught. The element 3 is provided with lateral apertures opening into the annular space between the two elements. The baffle is screwed into a plug 1 engaging a tubular mouthpiece spigot 9.
Patent GB-395669-A (GB)
Title: Blocking device for protecting pickers of looms
IPC: A63B51/12
Filed: 1931-10-12
Abstract: 395,669. Loom shuttle - checking mechanism. HAGEMANN & CO., B., Langenhorst, Westphalia, Germany. Oct. 12, 1931, No. 28279. Convention date, Nov. 10, 1930. Void [Published under Sect. 91 of the Acts]. [Class 142 (iii).] A device for checking shuttles comprises an arm k carried by the crank connecting rod d and provided with a resiliently mounted buffer p which, at each stroke of the crank, engages and presses a pivotally mounted swell f into the shuttle box. The buffer bearing o is adjustably secured to the arm k by means of a screw l and a leaf spring i is provided to bear lightly on the swell f.
Patent GB-511237-A (GB)
Title: An improved process for the solvent extraction of mineral oils
IPC: C10G21/02
Filed: 1938-12-29
Abstract: 511,237. Selective solvent extraction of oils. ARNOLD, C. (Standard Oil Development Co.). Sept. 29, 1938, No. 28378. [Class 91] An extract obtained by treating an oil with a selective solvent, is freed from undesired components by treating with a small amount of water, phenolic water, methyl alcohol or polyhydric alcohols, or acetonitrile, and then without separation into phases treating the mixture with a small amount of a liquefied normally gaseous hydrocarbon, whereupon an upper layer of oil is separated. In an example, lubricating oil is extracted with a selective solvent by a batch or countercurrent method. Selective solvents specified are phenol, furfural, ##<1> dichlorethyl ether; nitro benzene, or liquid sulphur dioxide. The extract phase is treated first with 5-10 per cent. of water, and then with ¢ to 4 volumes of propane. After standing, the upper layer of oil is removed and the propane is recovered therefrom. The resulting cycle oil containing phenol may be returned to the selective solvent extraction stage together with fresh oil:
Patent GB-1158821-A (GB)
Title: A control circiut for use with an electro-deposition system
IPC: C25D21/12
Filed: 1967-06-20
Abstract: 1,158,821. Automatic voltage control of electro-plating apparatus. M. & T. CHEMICALS Inc. June 20, 1967 [June 21, 1966], No.28449/67. Heading G3R. [Also in Division C7] An electro-deposition apparatus is provided with means whereby the plating current is controlled initially at one constant value and subsequently at a second constant value and the increase in current from the first value to the second value having a constant rate. The current supply to a pair of plating electrodes is controlled by varying the voltage output of a silicon controlled rectifier device 22, the control being effected by way of a differential amplifier 23 comprising saturable reactors, whereby the phase of the gate signals for the thyristors is altered in accordance with the error signal between the thyristor output voltage and the desired output voltage represented by an input signal E. The signal E is varied to produce the desired plating current pattern, a relay contact 14 first being set, manually or otherwise, in the position 15 16 when the initial constant value of the plating current is adjusted by variable resistor 13. After a given time period the contact 14 is moved to position 16, 18 when a D.C. amplifier 10 together with a capacitor 11 becomes an integrating amplifier whereupon the plating current is caused to increase linearly, at a rate set by variable resistor 20, until it reaches the second constant value adjusted by a potentiometer 21, the diode 17 forming a clamp to prevent any increase in the signal E when it reaches a value set by the potentiometer.
Patent GB-270970-A (GB)
Title: Air cleaners for air intakes of internal combustion engines and compressors
IPC: F02M35/022
Filed: 1926-11-13
Abstract: 270,970. Watrous, R. E. Nov. 13, 1926, Density separators.-The air supplied to carburettors or compressors is cleansed from dust by a device comprising an upwardly-extending openended tube 4 which is secured to the air intake 3 and connected by arms 6 to a hood 7, a ring 9 provided with inclined blades 9<c> being secured to the top of the tube. The hood is flared outwardly at 7<c>, and a space 8<a> is left between the blades and the wall of the hood. The blades impart a whirling motion to the air, the heavier particles being thrown outwards by centrifugal force and falling out of the hood when the suction in the intake 3 ceases.
Patent GB-1299711-A (GB)
Title: The production of fertilisers
Inventor: THOMPSON WILLIAM HENRY
IPC: C05B7/00
Filed: 1968-09-20
Abstract: 1299711 Potassium dihydrogen phosphate W & H M GOULDING Ltd 17 Dec 1969 [20 Sept 1968 6 June 1969] 44799/68 and 28659/69 Heading C1A Potassium dihydrogen phosphate is produced from phosphate rock, potassium bisulphate, sulphuric acid and phosphoric acid the weight percentages of hydrogen other than in water and sulphate ion in solution being controlled relative to phosphorus pentoxide to values of H/P 2 O 5  > 2% and SO 4 =/P 2 O 5  > 3% by weight to ensure precipitation of calcium sulphate which is separated from the reaction mixture. Alternatively, phosphate rock is reacted with hydrochloric acid to give a mixture of phosphoric acid, calcium phosphate and calcium chloride, which is reacted with further phosphate rock to form a suspension of dicalcium phosphate and phosphate rock; limestone, lime, magnesium hydroxide or magnesium carbonate is then added to produce a slurry of dicalcium phosphate and phosphate rock in a solution of calcium chloride; the calcium chloride is separated off and the mixture reacted with potassium bisulphate, sulphuric acid and phosphoric acid as above. The potassium dihydrogon phosphate may be precipitated from the phosphoric acid solution by the addition of a watermiscible organic solvent, which may be recovered by distillation.
Patent GB-327673-A (GB)
Title: Improvements in the manufacture and production of condensation products of urea or derivatives thereof and formaldehyde
IPC: C08G12/12
Filed: 1928-10-06
Abstract: 327,673. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Oct. 6, 1928. Condensation products of urea, thiourea, and their derivatives with formaldehyde.-Condensation products of urea or its derivatives and formaldehyde, or of a methylolurea or an anhydride thereof, are first prepared in known manner in organic media consisting mainly or wholly of hydroxyl-bearing solvents containing at least four carbon atoms until the resinous, water-insoluble stage is reached, and are then precipitated by the addition of an organic liquid in which the condensation products are insoluble, viz. aliphatic, aromatic and hydroaromatic hydrocarbons, and low-boiling aliphatic ethers which are not acetals. The precipitated products may be pressed into transparent homogeneous masses, or may be dissolved to form water-resistant lacquers in such solvents as monohydric and polyhydric alcohols and derivatives thereof, dioxane and its homologues, cyclic aldehydes and ketones such as furfurol and cyclohexanone, acetals such as diethylacetal, aliphatic-aromatic ethers such as anisol, and esters such as butyl acetate. The hydroxyl-bearing solvents in which the condensation is performed may comprise mono- or polyhydric aliphatic, aromatic or hydroaromatic alcohols, or their derivatives, such as ethers and esters, containing at least one free alcoholic group. The use of hydroxyl-bearing solvents containing less than four carbon atoms for the condensation is referred to, but the products are stated to be somewhat sensitive to water. According to the examples, (1) urea or thiourea is condensed with formaldehyde in amyl alcohol containing some ethyl alcohol, and the product precipitated with petroleum ether; the precipitate, after washing with ethyl ether and drying, is dissolved in npropyl alcohol and diluted with ethyl alcohol to give a water-resistant lacquer; (2) a condensation product of dimethylolthiourea, prepared according to Specification 319,251, in benzyl alcohol, is precipitated with ethyl ether; the product, when dissolved in a mixture of glycol monoethyl ether and ethyl alcohol, forms a water-resistant lacquer; cellulose esters, such as cellulose nitrate, may be incorporated in the lacquer; (3) the anhydride of dimethylolurea is first prepared from urea and aqueous formaldehyde at ordinary temperature in presence of caustic potash, and is then condensed in isobutyl alcohol to which an ethyl alcoholic solution of urea nitrate has been added; the addition of ethyl ether throws down a precipitate which is dried and either moulded under pressure or employed in the manufacture of lacquers. Specifications 261,029, 266,752, 296,361 and 301,696 also are referred to.
Patent GB-1254689-A (GB)
Title: Document drive device
IPC: B41J15/04
Filed: 1970-06-15
Abstract: 1,254,689. Document transport systems. INTERNATIONAL BUSINESS MACHINES CORP. 15 June, 1970 [30 June, 1969], No. 28782/70. Heading G4M. Change-over between continuous and incremental document feed is effected at a time when both feed devices are able to drive the document at the same speed. A continuous feed wheel 38, Fig. 1, is driven from shaft 20 by gears 24, 39 and an incremental feed wheel 35 is driven by shaft 20 via a geneva mechanism 26, 36. One or other drive is selected by actuating the appropriate pressure roller 41, 42 by energizing the associated solenoid 47, 48. An emitter 69, Fig. 4, produces a pulse for each revolution of shaft 20 at a time when geneva wheel 36 is rotating at the same speed as wheel 38. In the presence of an increment or eject command pulse 72, 70, the emitter pulse sets the corresponding drive latch 61, 63 and resets the other.
Patent GB-1382756-A (GB)
Title: Treating 3-methyl-3-hydroxycepham compounds
IPC: C07D501/22
Filed: 1973-06-18
Abstract: 1382756 Reacting 3-methyl-3-hydroxycepham compounds ELI LILLY & CO 18 June 1973 [30 June 1972] 28799/73 Heading C2C A process for treating a cepham compound comprises reacting a 3-methyl-3-hydroxy cepham compound of formula with a halogen reagent which is PX 5  or SOX 2  (X = Cl or Br) in the presence of at least one mole of an alkaline agent which is a tertiary amine or an inorganic alkaline salt per mole of the cepham compound and at 60-150 C., to form a mixture comprising a compound of formula a compound of formula and a compound of formula wherein R is the residue of an imide derived from a dicarboxylic acid, and R 1  is a carboxy protecting group. The halogen reagent is preferably present in an amount from 1À1 to 2À0 moles per mole of cepham compound and the tertiary amine is preferably present in an amount from 1À0 to 2-0 moles per mole of cepham compound. The tertiary amine is preferably triethyl amine. The following reactions are exemplified (i) the conversion of methyl 7-phthalimido-3α- methyl - 3# - hydroxycepham - 4 - carboxylate to a mixture of methyl 7-phthalimido-3α-methyl - 3# - chlorocepham - 4 - carboxylate, methyl 7 - phthalimido - 3α - methyl - 3 - cepham - 4- carboxylate and methyl 6 - phthalimido - 2α- chloromethylpenam - 2# - methyl - 3 - carboxylate, (ii) the conversion of p-nitrobenzyl 7- phthalimido - 3α - methyl - 3# - hydroxycepham- 4-carboxylate to compounds analogous to those obtained in (i), and (iii) the conversion of pmethoxybenzyl 7 - phthalimido - 3α - methyl- 3# - hydroxycepham - 4 -carboxylate to compounds analogous to those obtained in (i).
Patent GB-714400-A (GB)
Title: Hydraulic trailer braking and coupling apparatus
IPC: B60T11/16
Filed: 1952-11-14
Abstract: 714,400. Hydraulic brakes. HENRY, H. P. Nov. 14, 1952 [Jan. 29, 1952], No. 28822/52. Class 103(1) [Also in Group XXXII] A coupling hitch between towing and trailer vehicles actuates the trailer brakes, when relative closing movement takes place between the two vehicles, by moving a pilot piston 21 mounted on the coupling into a cylinder 25 in draw gear 24 to force liquid from the cylinder through a hole 58 to the trailer brake cylinders. When it is required to back the trailer, the towing vehicle is reversed to move the piston 21 into the cylinder 25 thus compressing the liquid in the cylinder and applying the trailer brakes. Further reversing of the towing vehicle increases the compression which causes the ball 55 to unseat to give relief and allow further entry of the piston, which further entry effects release of the brakes by permitting a prod 53 on the piston to further unseat the ball and cause rapid bleeding of the cylinder via duct 61 to the reservoir 48. The cylinder may be replenished from the reservoir through a passage 63, Fig. 4, the part 64 however being closed by the piston when it moves to the right of the cylinder.
Patent GB-243171-A (GB)
Title: Improvements in or connected with heel protectors for boots and shoes
IPC: A43B21/38
Filed: 1924-12-02
Abstract: 243,171. Hammersley, G. F. Dec. 2,. 1924. Protectors, construction of. - A protector for boots and shoes consists of a skeleton frame having a semi-circular base rim 1 of substantially uniform width and with a depending flange 2 except at the breast where there is a web 3 uniting opposite sides of the frame and an intermediate transverse web 4 pierced at 6 for attachment to a heel. A pad 8 of leather or other suitable material is fitted within this frame and is secured by attaching means passing through gaps 7 in the frame into the heel. The Provisional Specification also describes a frame in which the centre web 4 is omitted or both webs 3 and 4.
Patent GB-1048714-A (GB)
Title: A new or improved stripper finger assembly for a hay baler
IPC: A01F15/14
Filed: 1963-07-22
Abstract: 1,048,714. Stripper finger assemblies. INTERNATIONAL HARVESTER CO. July 22, 1963 [Aug. 7, 1962], No. 28879/63. Heading B5F. A stripper finger 10, for use in a hay baler, comprises a plate like member 11 pivoted for reciprocation in a horizontal plane about a vertical column 15 which is carried by the frame of the baler. The outer end of the member carries an arcuate shroud 12 which has a lug 13 which engages the wire twister 28 to release the wire therefrom at the appropriate part of the wire-twisting cycle. A truncated elliptical guide plate 20 is carried from the underside of member 11 by bolts 22, 25 and nuts 23, 27, and is separated therefrom by washers 21. A second column 16, also fixed to the frame of the baler, carries a smooth horizontally-dispersed indexing plate 17, the inner edge of which, i.e. the edge nearest the column 15, slides between the upper surface of the outer edge of the guide plate and the underside of member 11, so as to support and guide the member during each horizontal reciprocation thereof. The plate 17 is positioned so as to be always covered by member 11 to prevent any dirt from clogging the mechanism from above.
Patent GB-504042-A (GB)
Title: Improvements in or relating to sun blinds
IPC: E04F10/06
Filed: 1937-10-23
Abstract: 504,042. Sunblinds. DEAN, C. B., (trading as IRVING & CO.), and HELME, P. E. Oct. 23, 1937, No. 28977. [Class 20 (iii)] Each of the supporting- arms of a sun-blind A comprises two sections B, C of solid-drawn tubing of oval cross - section, cast - iron brackets fitted tightly and rigidly into the adjacent ends of the sections to provide a pivoted elbow-joint which is so constructed that, in the extended position, the sections are connected at an angle to each other, a bearing E swivelling on an inclined pivot by which to pivotally mount the rear section B so that it has the desired inclination, and a swivelling-bracket G connected between the outer end of the outer section C and the blind-rail H to permit adjustment of the latter to suit the inclination of the arm. As shown in Fig. 1, the fabric A is carried on a roller a disposed in a wall box D which is also adapted to house the arms when they are folded. The rear section B is mounted upon an inclined pivot e within a swivelling bearing E pivoted upon a horizontal pin e<1> on a bracket d in the wall box D. The upper end of the section B comprises two cast-iron brackets b, b<1>, Fig. 4, the bracket b being fitted tightly within the section and the bracket b<1> being fitted tightly against the outside of the section. Both brackets b, b<1> are provided with conical bushes which rotate in recesses in the bearing E. The bearing E is formed with a lug k which engages in a notch in a slide K by which the swivelling movement of the bearing E is controlled and limited. The slide K moves between guides on the bracket d, and its movement is limited and adjusted by a screw K<1>, being held in position by a bolt K<2>. The elbow joint F between the two sections B, C of the arm comprises a cast-iron bracket b<4> fitting rigidly in the arm B and provided with a bearing which is mounted upon a pin f<1> the pin f also carries brackets c <1>, c2 which fit rigidly into the section C and are provided with conical bushes engaging recesses in the said bearing. The desired difference in inclination of the two sections B, C of the arm is obtained by inclining the axis of the elbow joint F relatively to the longitudinal axis of the section B, The outer section C is fitted with a swivelling-bracket G to which the blind-rail H is attached, such bracket G comprising, as shown in Fig. 14, a part g which is pivoted on a member g<2> attached to the end of the section C and is adapted to swivel about its longitudinal axis in a lug g<1> fixed to the blind-rail H. The rail H may therefore be adjusted to suit the inclination of the arms and to permit the blind to find its correet alignment. The Provisional Specification describes also the connection between the blind-rail and the outer ends of the arms as comprising a small box which contains means to adjust the rail vertically to suit the inclination of the arm and provide an oscillatory movement to permit the blind to find its corrcct aligpment.
Patent GB-1269635-A (GB)
Title: Radiation detection
Inventor: PEACOCK ANTHONY
IPC: G01T1/175
Filed: 1968-06-18
Abstract: 1,269,635. D.C.-D.C. converters. IMPERIAL CHEMICAL INDUSTRIES Ltd. 16 June, 1969 [18 June, 1968], No. 29018/68. Heading H2F. [Also in Division G1] A power supply unit for a Geiger Muller tube 22 comprises a pulse generator 7, 8, 9, the output of which is increased in a secondary winding 10 and rectified at 11, a rectified output being coupled via a high resistance such as 16 to an output terminal 21. The unit is made suitable for use in a flammable atmosphere by encapsulation in resin. As described, a low voltage D.C. supply from a comparatively high resistance battery 1 is stabilized by a Zener diode 4 and used to supply a transistor oscillator 7, 8, 9, the output pulses of which are rectified at 11 and smoothed at 12 so as to supply the Geiger Muller tubes 22, 23. Voltage dependent resistors 13 ... 15 are included. Change in current in tubes 22, 23 following incidence of radiation results in pulses being passed by capacitor 18 and are amplified by transistors 24 ... 27 and feed a loud speaker 28. Amplified pulses from transistor 27 are passed by capacitors 30 or 31 and a further amplifier 37 to integrating capacitor 38 across which a meter 43 provides a general indication of radiation level.
Patent GB-205697-A (GB)
Title: Improvements in and relating to spring removing and applying tools
IPC: B25B27/26
Filed: 1922-10-26
Abstract: 205,697. Maples, K. E. Oct. 26, 1922. Pliers.-A tool for facilitating the insertion and removal of conical spiral shock-absorbing springs of automobiles comprises a lever 10 with a portion 12 adapted to be inserted between the coils at the larger end of the spring and terminating in a lip 13 to prevent slipping. A second lever 17 is pivoted to the lever 10 and has a swivelled head 22 of T form, Fig. 4, to enter and engage the smaller end of the spring. The spring is compressed by moving the handle portions 11, 18 of the levers apart and is held compressed by the engagement of a pawl 25 with ratchet teeth 15. This pawl comprises a twisted flat plate with a forked extremity 27 embracing the lever 10. The end of the lever 17 adjacent to the head 22 is formed with a neck 20 and notch 19 to provide clearance for the part against which the spring bears.