baber/WOPTO huggingface dataset:
Patent GB-1102305-A (GB)
Title: Improvements in rotary-piston internal combustion engines
IPC: F02B53/00
Filed: 1966-03-25
Abstract: 1,102,305. Rotary-piston I. C. engines. REGIE NATIONALE DES USINES RENAULT. March 25, 1966 [March 26, 1965], No. 13390/66. Heading F1F. In a rotary-piston I. C. engine of the epicycloidal n and n + 1 lobe type, detonation of the fuel-air mixture within radially-narrow portions 5, 6 of each working space 3 after ignition has been effected when the piston 2 is in a top-dead-centre position is minimized or prevented by a plurality of expansion chambers constituted by axiallyorientated grooves 7 formed in each of the lobes of the inner peripheral surface of the casing or stator 1 on either side of a combustion chamber 4. When the chamber 4 has an axial dimension less than that of the piston circumferentiallyorientated grooves may be formed in said surface between the combustion chamber and the end walls of the stator. The grooves may be replaced by rectangular recesses or blind cylindrical holes. Alternatively or additionally, radially-movable sealing-strips (8, 9), Figs. 2 and 3 (not shown), are lodged in grooves (11) within the stator on either side of each combustion chamber to temporarily isolate the portions (5, 6) from the rest of the working space while the piston is in the topdead-centre position, the ends of each strip being situated in holes (12) within the end walls (10) of the stator so that the strips are separated, from the piston when the latter is more than Œ20‹ from the top-dead-centre position relative to the corresponding combustion chamber. The said sealing strips may be replaced by fixed axially-orientated bars (13, 14), Fig. 4 (not shown), made of a soft metal and having serrated surfaces projecting slightly beyond the inner peripheral surface of the stator whereby said surfaces can be worn down by the piston until they project to a minimal extent sufficient to isolate the portions (5, 6) while the piston is in the top-dead-centre position. The bars (13, 14) may be replaced by projecting serrations (15, 16), Fig. 5 (not shown), formed on the inner peripheral surface of the stator.
Patent GB-381509-A (GB)
Title: An improved "in" and "out" indicator for doors
IPC: E05B41/00
Filed: 1932-05-10
Abstract: 381,509. " In " and " out " indicators. JEATER, C., 10, Bramley Avenue, Coulsdon, Surrey. May 10, 1932, No. 13424. [Class 118 (i).] An "in " and "out" indicator is operable by two bolts 1, 2, the bolt 1 being used for fastening the door from inside, and the bolt 2 from outside, and a projection on the. bolt 1 is adapted to engage either end of a slot in the bolt 2 so that whichever bolt has been used to fasten the door, the latter can be opened by moving the other bolt. The bolt 1, when shifted by a knob, rotates the indicator by a rack and pinion device, while a handle on another pinion serves to move the bolt 2. To prevent opening from the outside, a pin is inserted in a hole 7 in the back-plate.
Patent GB-572869-A (GB)
Title: Improvements in or relating to flushing cisterns
IPC: E03D1/08
Filed: 1943-08-19
Abstract: 572,869. Flushing-apparatus. CASE, W. G. Aug. 19, 1943, No. 13544. [Class 26] A flushing cistern 1, contains a cylinder 2, siphon-tube 3 and tubular pull-guide 4 constructed as an integral unit of vitreous china of other non-metallic mouldable material. The siphon-tube and tubular pull-guide may be provided with a flange 5 for securing the unit to the base of the cistern 1. The cylinder 2 contains a siphon-starting plunger which may be constructed of similar material to the cylinder. The tubular pull-guide 4 is bell-mouthed at its upper end to permit lateral movement of the pull and provides an emergency overflow.
Patent GB-689235-A (GB)
Title: Improvements in heat-sensitive adhesive materials
Inventor: KING CHARLES WILLIAM HENRY
IPC: C09J7/21
Filed: 1949-05-20
Abstract: 689,235. Adhesive-coated papers. PLASTANOL, Ltd., and ST. ANNE'S BOARD MILL CO., Ltd. July 25, 1950. [May 20, 1949] No. 13573/49. Class 140. [Also in Group V] A heat-sealing coating applied to paper, paperboard, and the like, flexible packaging and wrapping materials, consists of a mixture of isomerized rubber, paraffin wax of m. pt. 130-135F., and microcrystalline wax of m. pt. 140-145F. in proportions such that the composition is non-adhesive at ordinary temperatures but will soften or melt at 150 F. or below to produce a strong seal. The paper or the like may be surfaced, before application of the heat-sealing composition, with a waxy coniposition melting at a temperature which is higher than the softening or melting temperature of the heat-sealing composition. In the shaded area of the ternary diagram of Fig. 1 is shown the range of proportions of the three ingredients for which the strength of seal, sealing temperature, and freedom from adhesion at normal temperatures were satisfactory on applying the composition over selected areas of the waxy surface of a paper preliminarily waterproofed with a film of a mixture, of m. pt. 170-190F., consisting of 80 per cent of microcrystalline wax and 20 per cent of a polymerized ethylene. The isomerized rubber used in the compositions for which the results are shown in Fig. 1 was obtained by the action of phenol and phosphoric acid on crepe rubber ; other isomerized rubbers referred to are that prepared by treating rubber with chlorostannic acid or tin tetrachloride, and those prepared in accordance with U.S.A. Specification 2,230,359 and Specifications 498,311, 539,641 and 541,899, [all in Group V].
Patent GB-1081507-A (GB)
Title: Process for acetylene production
IPC: C07C7/11
Filed: 1966-03-28
Abstract: <FORM:1081507/C4-C5/1> In a process for the production of acetylene by partial combustion of a paraffinic hydrocarbon (e.g. methane or naphtha), the resulting hot acetylene gas stream is quenched with a heavy oil comprising predominantly naphthalene which entrains solid carbon particles, at least a portion of the oil then being mixed with a light hydrocarbon oil (e.g. benzene, an alkyl benzene, or a lower paraffin), a solids phase of carbon particles separated from the mixture, the light oil vaporized from the remaining liquid phase, and the heavy oil recycled to quench further hot gas stream. The reaction takes place below perforated refractory barrier 4 of reactor 3, and the reaction mixture is immediately quenched with a naphthalene stream 5 which removes entrained carbon particles from the reaction gas and leaves as stream 6, most of which (7) is recycled to stream 5, and the remainder of which (8) is mixed in unit 47 with light oil 46, the resulting mixture then being centrifuged at 49 to yield a solid carbon phase 50 and a liquid phase 30.  The quenched gas stream from unit 3 is scrubbed in unit 13 with further naphthalene 15, which cools the gas stream thus condensing most of the naphthalene vapours therein, and also removes residual entrained carbon, the exit naphthalene 16 being recycled part to quench 5 and part as stream 15 to unit 13.  Gas stream 21 from unit 13 is then further scrubbed in unit 22 into which are passed a naphthalene stream 24 above a packed section 23, a light oil stream 29 above reflux trays 25, and the mixed naphthalene/light oil stream 30 on to one of trays 25 at a point where the composition of the mixture on the tray roughly corresponds with that of stream 30.  In unit 22 further cooling of the gas takes place, and light oil stream 29 is completely vaporized into the gas stream causing simultaneous condensation of all remaining naphthalene vapour.  The residual naphthalene phase 26 is recycled part to stream 24 of unit 22, and part to stream 15 of unit 13. The gas stream 31 from unit 22, now containing acetylene, water vapour, and light oil vapour, is scrubbed with cold water in unit 32, the resulting gas stream 35 being treated conventionally for acetylene recovery, and the liquid phase being decanted to provide water, which is recycled, and light oil which is also recycled, part to stream 29 of unit 22, and part to be mixed with naphthalene/carbon stream 8 in unit 47.  Stream 30 may, instead of passing to unit 22, be distilled to recover naphthalene for recycle to quench stream 5, and light oil for recycle to unit 47.
Patent GB-795062-A (GB)
Title: Improvements in or relating to single seeder drills
IPC: A01C7/04
Filed: 1955-05-11
Abstract: 795,062. Seed sowers. WEBB, Ltd., E. A., and BARKER, R. J. May 11, 1956 [May 11, 1955], No. 13685/55. Class 6(1). A seed sower comprises a wheel 22 provided with pockets 25 which pick up seed from a hopper 15 and deliver it to a rearwardly sloping seed tube 30, the seed being ejected by a pivotally mounted ejector plate 32 which extends into a groove in the periphery of the wheel. Excess seed is wiped off the wheel 22 by means of a rubber tyred deflector wheel 23 driven from a landwheel 12, the wheel 23 being coupled to the wheel 22 by a chain drive. The seed sower is mounted as a unit on a frame 11 and is removable. A coulter 36 is provided together with pivotally mounted covers 37 and a press wheel 13. A number of seed sowers are suspended below a tool-bar bracket 43 by a pair of links 45 and the press wheel 13 is resiliently urged into contact with the ground by means of springs 49. The wheel 22 may be replaced by alternative wheels in which the size of the pockets together with their spacing is varied.
Patent GB-484359-A (GB)
Title: Improvements in or relating to the formation of plates of copper coated with cuprous oxide for use in rectifiers
IPC: H01L21/16
Filed: 1937-05-14
Abstract: A plate of copper is coated with cuprous oxide for use as a rectifier by heating the plate to a temperature at which black copper oxide is decomposed, that is above 1030 DEG  C., plunging it in a protective medium liquid at that temperature and allowing it to cool whilst surrounded by such medium.  The protective medium may be an alkaline earth metal fluoride, or preferably an equimolecular mixture of barium fluoride and barium chloride which melts at 1020 DEG  C., and it may be located in the oven in which the plate is heated.
Patent GB-972472-A (GB)
Title: Collapsible rigid structures
IPC: E04G9/08
Filed: 1960-11-29
Abstract: 972,472. Beams; metal forms; roadways. W. SCHUSTER. Nov. 29, 1960 [Dec. 4, 1959], No. 13709/64. Divided out of 972,471. Headings E1G, E1K, E1S and E1V. A collapsible rigid structure comprises a plurality of sets of pressure elements 2 each set being arranged side by side and the elements of each adjacent pair of sets being strung on a common tensioning element 1, means being provided to tension the tensioning elements to draw the pressure elements into engagement to form a rigid structure. The tensioning elements 1 may be tensioned by a single device such as screw 24 and nut 22 or by individual devices. In the rigid state the structure may be flat as in Fig. 1, tubular as in Fig. 6, I, L or T section, or channel section of lattice formation as in Fig. 9. In the released state the structure may be rolled up. The moment of inertia of a beam formed according to the invention may be varied along its length by variation in the lengths of the pressure elements. Specification 737,014 also is referred to.
Patent GB-184571-A (GB)
Title: Improvements relating to artificial limbs
IPC: A61F2/68
Filed: 1921-05-17
Abstract: 184,571. Pringle, A., and Kirk, T. S. May 17, 1921. Limbs, artificial.-Comprises the combination of a knee-joint of crossed link construction with spring-action frictional locking-means for automatically locking the joint under pressure and releasing the locking action on release of the pressure..Crossed links 12, 13 are pivotally connected at 14, 17 to a frame 10 carried by the upper limb-member 27, and a pin-and-slot connection 18 is provided between the link 13 and a frame 11 carried by the lower limb member. A bolt 22 connects the links 13, to a spring 23 which is coiled round a tube 16 fast with the lower member and concentric with the pivot pin 15, the free end of the spring being anchored at 26. In the unlocked condition the pin 18 is at the top of the slot 20, but when pressure is applied to the joint it is caused to assume the position shown, in which the spring 23 is frictionally engaging the tube 16. A knee-piece 30, checkstrap 31, and a leg-straightening spring 32 are provided.
Patent GB-401356-A (GB)
Title: Improvements in or relating to the manufacture of pyridine derivatives
Filed: 1932-05-12
Abstract: Halogenated pyridines are prepared by treating the vapour of pyridine with gaseous chlorine or bromine, or the vapour of a bromopyridine with gaseous bromine, at an elevated temperature, the reactants being brought to the reaction temperature before mixing.  When brominating pyridine at temperatures below 300 DEG  C., it is necessary to employ a contact substance of large surface area, e.g. pumice, asbestos, silica gel and charcoal, and a mixture of 3- bromo- and 3 : 5-dibromopyridines is then formed; at a temperature of 500 DEG  C., however, the contact substance may be dispensed with and a mixture of 2-bromo- and 2 : 6-dibromopyridines results.  When bromopyridines are brominated at 300 DEG  C., the course of the reaction depends upon the contact substance employed; using pumice or other surface catalyst, substitution is favoured in positions 3 and 5, but when the surface catalyst is impregnated with cuprous or cupric bromide, substitution takes place in positions 2 and 6; again, when ferrous, ferric or zinc bromide is used to impregnate the surface catalyst, substitution in positions 3 and 5 is favoured. Bromination of bromopyridines at 500 DEG  C. in the presence of a surface catalyst leads to substitution in positions 2 and 6 if positions 3 and/or 5 are occupied, whilst substitution takes place in position 4 if positions 2 and 6 are already occupied.  The chlorination of pyridine at 200--300 DEG  C. in the presence of a surface catalyst gives rise mainly to 2-chloropyridine but also to 2 : 6- and 3 : 5-dichloropyridines and pentachloropyridine. Examples are given of the bromination of pyridine and of 2-bromo- and 2 : 6-dibromopyridines in an apparatus comprising a vertical reaction tube filled with pieces of pumice and provided with an inner tube fitted at its upper end with a dropping funnel, the said tube extending two-thirds of the way down the reaction tube.  The pyridine compound is supplied by a dropping tube to the top of the reaction tube, which latter is heated to the required temperature.  In the case of the treatment of the bromopyridines, the pumice is impregnated with cuprous bromide and ferrous bromide respectively. The sample furnished under Sect. 2 (5) consists of 2-chloropyridine, prepared by passing pyridine vapour and chlorine at 300 DEG  C. over asbestos in the apparatus above described; 3-chloro-, 3 : 5-dichloro- and pentachloro-pyridines are also formed and are separated.  The Specification as open to inspection under Sect. 91 describes also the chlorination of 2-aminopyridine by the above method, and the treatment of 2 : 6-dibromo-pyridine with aqueous ammonia to form 2-amino-6-bromopyridine and 2 : 6-diaminopyridine.  This subject-matter does not appear in the Specification as accepted.
Patent GB-184577-A (GB)
Title: Improvements in and connected with stoppering devices for containers and particularly for petrol cans and the like
IPC: B65D41/04
Filed: 1921-05-17
Abstract: 184,577. Try & Son, Ltd., T., and Ross, A. A. May 17, 1921. Stoppers, screw. - A stopper for petrol cans &c. comprises a screw cap a containing a metal disc c of smaller diameter than the threads of the cap and a compressible washer b adapted to engage the screw-threads and thereby retain the disc c in position in the cap, the cap and disc being so formed that one has a central bearing upon the other to cause the disc to press evenly with its periphery upon the washer bearing against the rim of the neck of the receptacle. The disc c may be of concavoconvex form, Fig. 1, with or without a boss f bearing on the inner face of the cap, which face may be made slightly convex to meet the convexity of the disc. The cap may be formed with a pip a<1>, Fig. 4, to bear on a flat disc c or on a concavo-convex disc with a central depression, or a loose ball may be used instead of the pip. In another form, the washer b and a flat disc c are connected by a rivet the head of which bears on the inner face of the cap.
Patent GB-240892-A (GB)
Title: Improved device for delivering liquid in quantities measured by volume
IPC: G01F3/36
Filed: 1924-06-06
Abstract: 240,892. Parr, G. W., and Croucher, R. June 6, 1924. Fixed - chamber apparatus, controlling passage of air and gases for.-Comprises apparatus having an inlet and outlet at the bottom of the measuring chamber controlled by a valve, and an air vent at the top adapted to be closed by a valve comprising a diaphragm immediately the liquid reaches it, the diaphragm being placed wholly within the walls of the device and not forming part of one of them. In one form, the inlet and outlet passages e, d are controlled by a rotary valve c and the air vent m by a tubular valve f having small openings in the sides near the top which is closed by a diaphragm h. When rising liquid reaches the openings the valve is moved upward and the diaphragm h closes the port m. In a modification, the diaphragm is held clamped between two rings around the edge of which the air passes. In a further modification such a valve is placed to control an air port between two measuring vessels controlled by a single supply and discharge valve so that one vessel fills while the other empties the air expelled from the vessel filling assisting to discharge the other vessel.
Patent GB-108934-A (GB)
Title: Improvements in Closures for Joints subject to Fluid Pressure.
Inventor: SHORT HENRY WILLIAM
IPC: F16J15/46
Filed: 1916-09-30
Abstract: 108,934. Short, H. W. Sept. 30, 1916. Man-hole and hand-hole doors and frames.- Fig. 1 shows a door frame provided with a groove to contain a flexible tube 21 which is inflated to make a tight joint. In a modification shown in Fig. 2, the door is grooved and the tube is surrounded by an elastic band 30, which, when the tube is deflated, contracts within the groove to avoid undue wear.
Patent GB-833655-A (GB)
Title: Amides
IPC: C07C233/34
Filed: 1956-05-04
Abstract: Compounds having the formula <FORM:0833655/IV (b)/1> in which x is 1 or 4, y being 3 when x is 1 and 2 when x is 4, Z is a straight or branched C1-7 alkylene radical, and R and R1 are C1-7 alkyl groups, are prepared by reacting an octadecadienoic or octadecatrienoic acid of the formula <FORM:0833655/IV (b)/2> at a sub-normal temperature with an equimolar amount of a C1-7 alkyl chloroformate in presence of an equimolar amount of an aliphatic tertiary amine having C1-7 aliphatic radicals and further reacting the resulting intermediate acylalkyl carbonate with a dialkylaminoalkyl amine of the formula H2N-Z-NRR1.
Patent GB-716874-A (GB)
Title: Improved method of and apparatus for continuous feeding of electrolytic aluminium-producing cells
IPC: C25C3/14
Filed: 1951-06-12
Abstract: 716,874. Charging electrolytic furnaces. INDUSTRIA NAZIONALE ALLUMINIO SOC. ANON. June 12, 1951 [June 13, 1950], No. 13960/51. Class 51 (2)]. [Also in Groups XI and XXXVI] In a method of producing aluminium by electrolytic reduction of alumina in a bath of fuzed cryolite or fluorides in general, aluminia is introduced continuously into the bath under a pressure additional to that of gravity, whereby a local formation of a superficial bath crust is prevented. The pressure may be exerted, for example, by a screw and worm, a piston, or compressed air. In the arrangement shown in Fig. 1 alumina in a feed hopper 1 is discharged by a metering screw 2 into a pipe 3 and fed by a screw 5 into the bath 4. The pipe 10 containing the screw 5 is accommodated within an opening in a S÷derberg anode 11, the pipe and screw terminating near to the surface of the bath. More than one screw may be provided, and the screw or each screw may be mounted outside but adjacent to the anode. In the arrangement shown in Fig. 6, the alumina is discharged by the metering screw 2 into the pipe 3 passing into a pipe 18 from which it is forced by compressed air supplied through a pipe 19. In a modification, a piston driven through a crank or eccentric and linkwork acts to force the alumina through the pipe 18.
Patent GB-1119930-A (GB)
Title: Improvements in drive coupling including automatic synchromesh arrangements
IPC: F16D11/04
Filed: 1967-03-28
Abstract: 1,119,930. Controlling positive clutches. SIEMENS A.G. 28 March, 1967 [29 March, 1966], No. 14003/67. Addition to 1,020,963. Headings F2C and F2L. The positive clutch described in the Specification 1,020,963, in which a stop 17 of a cam follower 13 prevents engaging movement of a driven clutch disc 5 when the clutch teeth are not correctly positioned for interengagement, is improved by the provision of an extension 19 of the cam follower 13 which is engaged by an extension 18 of a clutch release lever 10 when in its disengaging position to hold the cam follower 13 out of engagement with its cam 15. When the clutch is to be engaged the lever 10 is pivoted by a magnet, initial movement of the lever releasing the cam follower 13 which then engages its cam 15, and further movement of the lever releasing a stop 8 and an axial cam 9 fast with the clutch disc 5 to permit a spring 11 to engage the clutch when the teeth are correctly positioned.
Patent GB-541350-A (GB)
Title: Improvements relating to releasable fastenings
IPC: F16B5/10
Filed: 1940-09-10
Abstract: 541,350. Cowling &c. fastenings. TINNERMAN PRODUCTS, Inc. Sept. 10, 1940, No. 14039. Convention date, June 27, 1940. [Class 44] A fastening for aeroplane cowlings and like uses in which a stud 10 provided with projections, such as the ends 13, 14 of a cross pin, is passed through registering apertures and engaged with a spring member by rotation through 90 degrees, has the spring member formed with base-plate attachment portions 21, 22 and a pair of offset tongues 24, 25 between the ends of which the stud is received, the ends 26, 27 being curved transversely to embrace the stud in socket-like manner, the terminal edges 28, 29 being helically inclined to give a tightening cam action as the stud is rotated, and provided with recesses in which the projections 13, 14 seat to prevent accidental release. The base-plate may be flat, or as shown, the side members 23 between which the tongues 24, 25 are situated may be arched. As shown, the spring member is secured to the fixed support B by screws 37, 38 engaged by the opposed ends of spring tongues 36 struck up from the base. It may, however, be secured by other means such as riveting or welding or by pairs of tongues 45, 46, Fig. 6, bent down out of the base-plate, tongues 45 being L-shaped to embrace support B as shown, these tongues being passed through apertures 41 and then moved to the left. The spring tongues 46 yield to allow this to be effected, and then snap into the apertures so that their ends abut against the right-hand walls of the apertures to prevent release movement.
Patent GB-129032-A (GB)
Title: Improvements in Cylinder Construction for Internal Combustion Engines.
IPC: F02F1/04
Filed: 1917-09-29
Abstract: 129,032. Daimler Co., and Berriman, A. E. Sept. 29, 1917. Cylinders, construction of and cooling.-A cylinder and valve-chest construction as described in Specification 103,960 are held together by three bolts 12, one on each side of the igniter 14, and one diametrically opposite. The igniter is situated in a socket with channels 17, 18 to convey air to it. Specification 129,007 is also referred to.
Patent GB-293171-A (GB)
Title: Fuel valve for internal combustion engines
IPC: F02M61/20
Filed: 1927-05-26
Abstract: 293,171. Hemmingsen, T. V. May 26, 1927. Cylinders receiving liquid fuel.-An airless fuel injection valve opened by the pressure of the fuel is prevented from hammering against its seat by dividing the valve spindle lengthwise into two or more sections e, k separated by diaphragm springs i.