baber/WOPTO huggingface dataset:
Patent GB-491554-A (GB)
Title: Method of and apparatus for sealing off vessels containing gases
IPC: H01B17/40
Filed: 1937-06-21
Abstract: 491,554. Sealing gas - filled electric lamps and discharge devices. EGYESULT IZZOLAMPA ES VILLAMOSSAGI R. T. June 21, 1937, No. 17210. Convention date, June 20, 1936. [Class 39 (ii)] In a method of sealing-off the heat-softened glass or vitreous exhausting and filling tube of a gas-filled electric incandescent lamp or discharge device, more particularly when the gas filling is at a pressure above atmospheric, the tube 1 is pinched together by a tool comprising elements 2, 3 which are heated at least to a bright red heat and possess a non- adhering surface and a coefficient of thermal expansion corresponding substantially to that of the tube material, the tool being preferably pressed resiliently against the tube and being cooled down together with the tube, while still in contact with the latter, after pinching has taken place. The pinching- elements 2, 3 consist of thin U-shaped plates of chromium-nickel alloy held between clamping-jaws 2a, 2b and 3a, 3b, which press them against the glass tube 1. A heating current may be fed through the jaws, or gas flames may be directed upon the portions in contact with the tube. The jaws are movable to and from each other and are actuated by springs or a pneumatic pressure device. The parts of the tube adjacent to the zone of action of the tool are preferably cooled by blasts of air, indicated by the arrows 4, 5, and the tube and tool are similarly cooled after sealing has taken place. To prevent the tool from sticking to the softened glass its surface may be polished, or coated before each pinching operation with a layer of material such as graphite, or tools of graphite or carbon may be used. The tool may also be shaped so that it severs the lower end of the tube 1 after pinching it. In a modification the tool comprises two resilient portions so shaped that they substantially embrace the tube. The operations are preferably carried out in a rotary automatic machine and, in order to reduce delay due to the pinching-tool remaining in contact with the filling tube until cooled down, the tool may be mounted on an auxiliary apparatus adjacent to the main machine carrying the tube, so that, after pinching, the sealed tube is carried away on the auxiliary apparatus and cools down in transit.
Patent GB-378586-A (GB)
Title: Improvements relating to automatic telephone systems
IPC: H04Q3/00
Filed: 1931-06-13
Abstract: 378,586. Automatic exchange systems. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, and CHRISTIAN, D. A., Morven, Charlton Road, Charlton, both in London. June 13, 1931, No. 17234. Drawings to Specification. [Class 40 (iv).] In a single-motion selector which has doubleended wipers the ends of which come into engagement with corresponding rows of terminals in turn and which is controlled numericallv by marking, in order to decrease the hunting time a preliminary rotation of the wipers through 180‹ takes place when necessary in accordance with a discrimination effected at the previous selecting stage which takes effect as soon as the selector is seized or in the case of a first selector in accordance with one or the other of two alternative first digits. The preliminary rotation may be dependent on a relay in the line circuit which is short-circuited when one wire is earthed, or the relay may be included in one of the two routes of access to the slector. A group selector with a common control circuit is described which is identical with that shown in Figs. 9 and 10 of Specification 378,585.
Patent GB-570469-A (GB)
Title: Rolling door construction
IPC: E06B9/13
Filed: 1943-10-20
Abstract: 570,469. Door-operating appliances. MICHELMAN. N. Oct. 20, 1943, No. 17235. Convention date, March 25. [Class 65 (i)] A door is rolled up on a shaft 21 containing a tension spring 27 which expands or re tracts as the door is unrolled or rolled up One end of the spring is supported in helical grooves in a bracket 28 secured on a non- rotatable shaft 35. Axial movement of the rod 35 is prevented by a retainer arm 37. A tube 39 supports the spring and is moved axially by means of balls 42, Fig. 7, when a helical rod 43 is rotated together with the shaft 21. Actuation of the door is by hand through chain and sprocket gear or the like, or for a heavy door an electric motor may be used.
Patent GB-793853-A (GB)
Title: Manufacture of new 3-amino-indanes
Inventor: SCHENCK MARTIN
Filed: 1954-09-15
Abstract: The invention comprises 3-aminoindane compounds of the general formula <FORM:0793853/IV (b)/1> (wherein R represents hydrogen or a low alkyl radical (of 1-4 carbon atoms), R1 represents a monocyclic aromatic hydrocarbon radical with not more than 10 carbon atoms, and Am represents an unsubstituted or mono- or di-(low alkyl)-substituted amino group, or a 5- or 6-membered saturated heterocyclic radical attached by a ring nitrogen atom), and the preparation thereof from a 1-substituted 3-halogen-indane by reaction, preferably in the absence of water, with ammonia or a primary or secondary amine AmH, or from a 1-substituted 3-ketoindane either by converting it to its oxime and reducing this, or by reductive amination in the presence of ammonia or a primary or secondary amine AmH, each method being followed, where desired and possible, by substitution on the nitrogen atom of the group Am.  The products are useful pharmaceutically, e.g. as spasmolytic, vasodilatory or local anaesthetic agents.  In examples: (1)-(3) crude 1-phenyl-3-chloroindane is reacted with (1) dimethylamine, (2) piperidine, and (3) diethylamine; (4) crude 1-methyl-1-phenyl-3-chloroindane is reacted with dimethylamine, and (5) with diethylamine; (6) 1-phenyl-1-methylindanone-3 in pyridine is treated with a solution of hydroxylamine in dilute alcohol, and the resulting oxime is hydrogenated in methanol in the presence of palladium black; the product may be dimethylated with formalin and formic acid; (7) 1-phenylindanone-3 is hydrogenated in methanol in the presence of methylamine and Raney nickel; (8) the methylamine in (7) is replaced by dimethylamine.  The product of (3) is converted into its neutral tartrate and the remaining products into hydrochlorides.  In the first process there can also be used 3-halo-indanes containing as substitutent in the 1-position o-, m-, or p-tolyl, ethylphenyl, propylphenyl, isopropylphenyl, xylyl or cymyl groups.  Additional amines specified are ethyl-, propyl-, isopropyl-, butyl-, dipropyl-, di-isopropyl-, di-butyl-, methyl-ethyl-, ethyl-propyl- and methylbutyl-amines, pyrrolidine, morpholine, oxazolidine, thiazolidine and piperazine.  Starting materials.  1-Substituted 3-halogenindanes are prepared by the action of halogenating agents capable of replacing a hydroxy group by halogen (e.g. SOCl2), preferably in an inert solvent (e.g. chloroform), on the corresponding indan-3-ols obtainable by catalytic hydrogenation (e.g. in the presence of Raney nickel) of 1-substituted indan-3-ones.
Patent GB-1034519-A (GB)
Title: Improvements in or relating to electrostatic wet film pipe precipitators
IPC: B03C3/78
Filed: 1965-04-23
Abstract: 1, 034, 519. Electrostatic precipitators. METALLGESELLSCHAFT. A. G. April 23, 1965 [April 25, 1964], No. 17295/65. Heading B2J. An arrangement for maintaining a uniform liquid film on, and for intermittently flushing out, the collecting electrode pipes 1 of an electrostatic precipitator comprises a bath 4 containing liquid above the upper ends of the pipes which are let into a floor 2 and surmounted by raisable overflow chimneys 3. Water fed through pipes 6 into the bath trickles over the upper rims of the chimneys into the tubes for maintaining a wet film thereon, When it is desired to flush the pipes 1, the chimneys are raised by levers 14 and chains 15 against the action of springs 16. The chimneys may be made of plastic and have straight or corrugated sides; furthermore, they may be split axially for installation purposes.
Patent GB-172964-A (GB)
Abstract: 172,964. Bosch Akt.-Ges., R. Dec. 20, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Magneto electric machines; collecting-rings.-In an ignition magneto the condenser d is housed in a chamber c formed in the collecting-ring a.
Patent GB-236936-A (GB)
Title: Process and arrangement for the drying of damp pulverulent materials
IPC: F26B17/04
Filed: 1925-07-07
Abstract: 236,936. Hertenbein, L. July 9, 1924, [Convention date]. Endless band conveyers, fibres, granular and plastic material carried on; draining.-In drying pulverulent materials, such as washed coal dust, the material is fed from a draining belt on to a pervious conveyer b which passes through a series of chambers having upper and lower compartments d, f communicating with a hot air supply and a vacuum apparatus respectively, so that water is withdrawn from the material and the drying completed by the hot air drawn through the conveyer. The partitions d<1> between the chambers are formed with prongs d<2> arranged on adjacent partitions in staggered formation to plough the material on the conveyer. The dried material is discharged through doors provided in hoppers formed at the bottoms of the lower compartments of the chambers. The upper compartments may be traversed, by gilled pipes through which steam is passed.
Patent GB-362889-A (GB)
Title: Improvements in and relating to printing processes
IPC: B41M1/12
Filed: 1930-06-05
Abstract: 362,889. Printing-surfaces; stencils and stencilling - apparatus. UHER ENGINEERING CO., Ltd., Kubli House, Poststrasse, Glarus, Switzerland. June 5, 1930, No. 17447. Convention date, Dec. 30, 1929. Void [Published under Sect. 91 of the Acts]. [Class 100 (ii).] In a printing process wherein the ink or other colouring or toning medium 1, Figs. 2 and 3, diffuses through a permeable layer 2 and, if desired, an outer layer 3, the layer 2 is made of gelatine which has been locally influenced, preferably by the action of light, to alter the capacity for passing ink in particular parts. In the apparatus shown in Fig. 2, the ink, &c. 1 is contained in a trough 6 with an inlet 7 and marginal ledges 8 over which the layers 2, 3 are situated. A press-plate 4 having a rod 9 guided at 10 can be raised or lowered to press the paper 5 against the outer layer 3. The internal pressure of the ink &c. 1 may be capable of pulsating in phase with the strokes of the press-plate 4. A protective network 11 may be fitted inside the layer 2. Fig. 3 shows the layers 2, 3 in the form of a cylinder, armoured at 11 and provided with rings 12. The ink &c. 1 enters the cylinder through a central bore 14 in the hub 13. A stationary shield 15 is provided inside the cylinder. The paper strip 5, guided on rollers 16, embraces the layer 3 and travels with the cylinder. In a modification an endless band may travel with the cylinder and is adapted to press the paper strip on the cylinder to enable higher internal ink &c. pressures to be used.
Patent GB-658004-A (GB)
Title: Improvements in and relating to compressors
IPC: F25B31/02
Filed: 1949-07-01
Abstract: 658,004. Bearings. BRITISH THOMSONHOUSTON CO., Ltd. July 1, 1949, No. 17488. Convention date, July 2, 1948. [Class 12 (i)] In a compressor or the like having a frame 13, Fig. 1, in which a shaft 15 is journalled, a first thrust bearing 19 on the frame is engaged by a collar 21 on the shaft, and a second thrust bearing 20 formed on the frame is engaged by a self-aligning member 22 which is provided with means for adjusting the end play of the shaft relative to the frame. The member 22, which is in the form of a ring, has transverse grooves on one face thereof which are engaged by a pin 23 extending through a transverse passage 24 in the shaft. A flat surface 33 on the pin 23 is engaged by the end of an adjustable member 25 extending through an axial passage in the shaft and having a screw thread 27 and look nut 30 for adjustment purposes. The hub 18 of the rotor 9 of an electric motor is secured to the shaft 15 which transmits the motion of the rotor to the reciprocating piston of a compressor 12. In a modification, the thrust bearing 20 is engaged by a ring member 35, Fig. 3, having a curved face 42. At its maximum thickness, the member 35 is engaged by, and connected by means of pins to, a ring member 36, which is connected to the rotor hub 18<SP>1</SP> by a pin 47 and is engaged by a member 37 for adjustment purposes. In a further modification, Fig. 5, a ring member 49 is engaged by diametrically opposite raised portions 50 on a ring member 49<SP>1</SP> and secured thereto by pins 53. On the opposite side of the member 49<SP>1</SP> and disposed at right angles to the portions 50, are raised portions 51, one of which is connected to the rotor hub 18<SP>1</SP> by a pin 55, and the other is engaged by an adjustable member 37.
Patent GB-1069852-A (GB)
Title: Improvements relating to screwdrivers
Inventor: JEFFS ANTHONY ROGER
IPC: B25B21/00
Filed: 1964-04-28
Abstract: 1,069,852. Screwdrivers. RUSSELL AUTOFEED SCREWDRIVERS Ltd. May 3, 1965 [April 28, 1964], No. 17498/64. Heading B3N. A screwdriver comprises an electric motor or air turbine (10), which drives a friction or dog clutch part (34), through a gear-box, and an output spindle (29), connected to the driven clutch part (36). The latter is mounted on a stub shaft (38) slidably journalled in a block (39) which is axially fixed in a sleeve (14) by a housing (26). An outer sleeve (18) is axially slidable on sleeve (14) but is restrained against rotation thereon by a spring-urged plunger (28) which engages in a slot, an adjustable stop (63) being provided for limiting the depth of driving. The outer sleeve supports a tubular member (21), the forward end (22) of which forms a screw-receiving chamber. Spindle (29) has a driving bit (30) of blade, or cruciform crosssection at one end, and is of non-circular crosssection at the other end, and fits into a correspondingly shaped bore (41) in shaft (38). Screw-supporting arms (49) are pivoted on a bush (47 at (50) and are actuated by a member (53), which is indexable to bring various control faces (54) into operation. In operation, a screw is placed in chamber (22) and engaged by blade (31). The forward face (60) of member (21) is placed against the work and members (31), (29), (38) and (37) are urged forwardly by spring (45). Thrust is exerted on motor (10), the screw is placed against the work and spindle (29) moves rearwardly to compress spring (45) to engage clutch (34), (36) and transmit the motor drive to the driver (31).
Patent GB-371672-A (GB)
Title: An improved method of and means for fitting artificial teeth
IPC: A61C13/10
Filed: 1931-06-18
Abstract: 371,672. Dentures; grinding apparatus. WILSON, C. A., Wood End, Crowhurst, Sussex. June 18, 1931, No. 17718. [Class 81 (ii).] Accurate joints are made between gumsections to form parts of a denture by setting up the sections on a model, transferring them to a holder in which they are securely held in correct relative position, separating the abutting ends of the sections laterally, and simultaneously grinding the parted ends to produce parallel plane surfaces which will abut accurately when the sections are again set up. The apparatus employed comprises two troughshaped members 13 mounted on pillars 12 carried by slides 11 working in a groove 10 in a baseplate 1 adapted to be bolted to the tool slide of a lathe or to the bed of a grinding machine, or to be supported on detachable and adjustable legs 2 formed with spikes 4 to be pressed with a work bench. A forked pillar 5, also carried by the baseplate 1, serves as a support for a platform 9 which is adjustable vertically and longitudinally. The platform 9 is formed with a slot to receive a thin blade 16 serving as a guide for the correct placing of the model on the platform. The model carrying the gum sections is placed on the platform so that the teeth project into plaster of Paris placed in the troughs 13. When the plaster has set the model is removed, leaving the gum sections securely held with their abutting ends projecting slightly beyond the adjacent ends of the troughs 13. The troughs are then moved apart, a grinding wheel 18 is introduced between them and the sections pressed against the wheel so as to be ground simultaneously. The finished gum sections are then fitted to a dental plate in the usual manner.
Patent GB-177335-A (GB)
IPC: F22G7/06
Abstract: 177,335. Robinson, J. G., Thom, R. A., and Superheater Corporation, Ltd. Feb. 7, 1921. Smoke-tube superheaters. -A smoke-tube superheater having U-tube elements with upwardly or laterally bent inlet and outlet ends expanded into the tube walls of a header above or at the side of the boiler smoke-tubes, the elements are secured to the rear walls of saturated and superheated steam chambers in the header. the chambers having spaces between them through which the ends of the elements may be passed during insertion or removal of the elements. Removable covers are fitted at the front of the chambers. Superheated and saturated steam chambers 12, 11 depending from a header 5 open respectively into longitudinal compartments 7, 6 in the header. The ends 18<a>, 18b of each element are bent upwardly and forwardly, one bend being so set in advance of the other, that when the ends are disconnected, they may be pressed together into alignment with a space 13 between two chambers, thus allowing the element to be readily withdrawn. The covers 20 at the front of the chambers are secured bv T- bolts 21 and nuts 22. The elements are preferably of the kind described in Specification 13762/12.
Patent GB-266596-A (GB)
Title: An improved tool for cutting and twisting wire or the like
IPC: B21F15/00
Filed: 1926-07-15
Abstract: 266,596. Mattson, G. W. July 15, 1926. Twisting wires together.-In a tool for twisting and cutting wires for closing the mouths of sacks, bags &c., of the type comprising a spirally slotted shaft carrying a pair of pivoted and spring closed jaws, rotated by a sleeve longitudinally movable in the shaft; the jaws are positively retained in their closed position by means which are removed after twisting is completed. The jaws 18, 19, which are provided with dulled edges 20<a> and cutting edges 20 are mounted on a pivot 17 on a member 16 and normally closed by a spring 21. The member 16 is screwed to a helically slotted shaft 7 provided at its rear end with a flanged bush 8. A hollow handle 1 has secured thereto a head 3 having studs 4, 5 engaging the slots in the shaft so that on drawing back the handle the shaft is rotated to twist the wires when placed between the edges 20<a> and to cut the wires separately after twisting when placed between the edges 20. The handle is returned by a spring 14. The jaws are normally held closed positively by the head 22 of a rod 9 which is pressed forward by a spring 24 and is provided with a disc 12 having pins 11 passing through holes in the flange 10 of the bush 8. A stop collar 15 is arranged in the handle, which, at the end of the twisting operation engages the pins 11 so as to remove the rod 9 from the jaws and allow the tool to be removed.
Patent GB-994903-A (GB)
Title: Improvements in friction-type pit props
IPC: E21D15/28
Filed: 1962-05-10
Abstract: 994,903. Telescopic pit props. RHEINSTAHL WANHEIM G.m.b.H. May 10, 1962 [May 12, 1961], No. 18006/62. Heading E1E. In a telescopic pit prop having a friction lock 3, a clamping device such as a wedge 4 is adapted to act on a clamping plate 5 shaped as shown, the arrangement being such that the plate 5 may move the inner prop member 2 about its longitudinal axis into engagement with an abutment 6. The member 2 is provided with two bearing surfaces 2a, 2b for engagement with the members 5, 6 respectively. In a modification, see Figs. 4, 5 and 6 (not shown), two wedges are employed acting on common or separate clamping plates. A friction lining may be provided for the inner prop to rotate therewith.
Patent GB-928845-A (GB)
Title: Production of alkylene oxide polymers
Inventor: NEWTH FREDERICK HOWARD
IPC: C08G65/26
Filed: 1960-05-23
Abstract: Monomeric epoxides are polymerized in the presence of a trialkoxyaluminoxole of formula: <FORM:0928845/IV(a)/1> in which R is an alkyl radical of not more than four carbon atoms. At least one FriedelCrafts halide may be mixed with the aluminoxole.  The preferred aluminoxole is triisopropoxyaluminoxole.  The epoxy compound may be epichlorhydrin, ethylene oxide, propylene oxide, styrene oxide, cyclohexene oxide or mixtures thereof.  Many Friedel-Crafts halides are specified.  The products from alkylene oxides are soluble in benzene and ethylene dichloride.  Examples are given.
Patent GB-785948-A (GB)
Title: Photographic printing process
IPC: G03C5/02
Filed: 1955-06-22
Abstract: 785,948. Photographic printing processes. AGFA AKT.-GES. FUR PHOTOFABRIKATION. June 22, 1955 [June 22, 1954], No. 18099/55. Classes 98(1) and 98(2) To regulate gradation, particularly in printing originals on to sensitive material in roll form in a high output machine, printing light proceeds by means of a lens system through the original and on to the sensitive material and a supplementary directed light which does not pass through the original is passed through a corresponding lens system also on to the sensitive layer. The two lights may act simultaneously and the proportions thereof may be regulated by means of displaceable grey plates .The supplementary light may be derived from the printing light source, thus as shown printmg lifght from Source 1 passes through condenser 2. original 3, displaceable grey plate 4, objective 5 and transparent mirror 6 on to printing paper 7, and .the directed light branches off through condenser 8, grey plate 10 which is coupled to grey plate 4, and objective 11 and is diverted by mirrors 9, 12, 6 to the paper 7. The grey.plates are adjusted with aid of a gradation scale 13 also shown in Fig. 2, indicia of which EH, H extra hard and hard, N normal S special W, EW soft and extra soft enable printing originals of different density range on to uniform and steeply graded paper, the indicia being determined by printing a grey step wedge or effecting a number of test exposures. Increasing -density of the grey plates 4, 10 is compensated by grey wedges 14. Specification 702,599 is referred to.
Patent GB-459270-A (GB)
Title: Process for stabilising lead tetraethyl and anti-knock mixtures containing same
IPC: C10L1/10
Filed: 1936-06-30
Abstract: Lead tetra-ethyl and motor fuels containing it are stabilized by the addition of an alkali metal fluoride together with a mutual solvent such as a monohydric alcohol.  According to the example, an anti-knock agent containing lead tetra-ethyl known commercially as "Ethyl fluid" is mixed, in the proportion of 1 : 6, with a 1 per cent solution of potassium fluoride in methanol. Specification 414,581 is referred to.ALSO:Anti-knock agents containing lead tetra ethyl and motor fuels containing the same are stabilized by the addition of an alkali metal fluoride together with a mutual solvent such as a monohydric alcohol.  According to the example, an anti-knock agent known commercially as Ethyl fluid is mixed, in the proportion of 1 : 6, with a 1 per cent solution of potassium fluoride in methanol. Specification 414,581 is referred to.
Patent GB-181475-A (GB)
Abstract: 181,475. Symonds, E. E. March 12, 1921. Ink-ribbon mechanism.-In apparatus for recording messages such as commissions, commercial transactions &c. in which the message is inscribed, through an aperture in the casing, on a. record strip adapted to be advanced and stamped with the time upon the manipulation of the operating-handle, the record strip W is led from a cylinder F over guide rollers M, L, I, and K to a cylinder G which is actuated by a pawl on a link-work B connected to the operating plunger A. The plunger A carries a one-way pawl mechanism T which actuates simultaneously the supply and take-up spools of a carbon ribbon V through the ratchet wheels P<1>, P<2>, the carbon ribbon being led over guides Q<1>, Q<3>, Q<4>, Q<2>. A hammer or lug D on the plunger presses the carbon ribbon on to the record strip to stamp the time indicated on the clockwork J.