baber/WOPTO huggingface dataset:
Patent GB-610397-A (GB)
Title: Process for producing carbonyl compounds
IPC: C07C45/37
Filed: 1946-04-15
Abstract: Catalysts for dehydrogenating alcohols contain copper, zinc and lead, all in the metallic state.  The catalyst may be a mixture of the powdered metals, which may be formed into pellets or the like. Preferably, however, an alloy of the metals is used, suitably in the form of turnings, but optionally in the form of powder, pellets, wire, discs, hollow cylinders or rings.  Suitable alloys contain copper 56-67, zinc 32-42 and lead 0.25-3.5 per cent, and within this range catalysts containing copper 60-62, zinc 35-38 and lead 2.4-3.2 per cent kind are described, and examples are given of their use in the dehydrogenation of isopropyl alcohol to acetone.ALSO:Saturated primary or secondary aliphatic alcohols containing at least three carbon atoms are dehydrogenated to yield the corresponding aldehydes or ketones in the presence of a catalyst containing copper, zinc and lead, all in the metallic state.  The process may be effected at 350-600 DEG  C., preferably 420-500 DEG  C., under a pressure of 1-100 atm., preferably 3-12 atm.  The catalyst may be a mixture of the powdered metals, which may be formed into pellets or the like. Preferably, however, an alloy of the metals is used, suitably in the form of turnings, but optionally in the form of powder, pellets, wire, discs, hollow cylinders or rings.  Suitable alloys contain copper 56-67, zinc 32-42 and lead 0.25-3.5 per cent, and within this range catalysts containing copper 60-62, zinc 35-38 and lead 2.4-3.2 per cent are preferred.  Several specific alloys of this kind are described, and examples are given of their use in the dehydrogenation of isopropyl alcohol to acetone.  Other specified alcohols which may be treated are sec.-butyl and sec.-amyl alcohols.  The Specification as open to inspection under Sect. 91 refers to the dehydrogenation of alcohols containing alkenyl, aralkyl, aryl (including naphthyl) and terpenyl groups.  This subject-matter does not appear in the Specification as accepted.ALSO:Alloys for use as dehydrogenation catalysts contain copper 56-67, zinc 32-42 and lead 0.25-3.5 per cent.  Alloys containing copper 60-62, zinc 35-38 and lead 2.4-3.2 per cent are preferred. Several specific alloys of this kind are described.
Patent GB-115129-A (GB)
IPC: H01H19/12
Abstract: 115,129. Goldston, E., and Wood, E. W. June 11, 1917. Controllers, sliders on rotating arms.-A rotary arm switch with resistance permits the maximum current taken by one apparatus to be transferred to another similar apparatus and is shown applied to cinematograph projectors and motors. The switch spindle d carries an arm e with contacts g, g<1> working over strips h, h<1> and studs f<1> - - f<6>, f<8> - - f<14> and other contacts working over the strips i - - i<3>. Resistance grids which are mounted on steel plates behind the switch plate a are connected to the studs. The apparatus is connected to the projectors k, k<1> and generator K, and to the motors l, l<1> and generator L as shown in Fig. 3. Auxiliary switches c, c<1> are connected in the circuit of the projectors and switches m, m<1> are included in the motor circuits. With the arm c in the position shown in Fig. 1 and the switch c closed, the circuit of the lamp k is completed through the section 1, 2 of resistance and the current is sufficient to strike the arc. Movement of the arm connects the resistance sections 7 - - 2 in circuit and then cuts them out gradually. When the arm reaches the strip i the motor l is started to run the film. With the arm in its extreme position the switch c<1> may be closed to start the lamp k<1>. Reverse movement of the arm to bring it back to the position shown in Fig. 1 will cut out resistance from the circuit of the lamp k<1> and start the motor l<1>. At the same time the motor l will be stopped and resistance cut into circuit with the lamp n., the circuit of which can then be opener at the switch c.
Patent GB-657310-A (GB)
Title: Drilling machine
IPC: E21B44/02
Filed: 1948-04-27
Abstract: 657,310. Drilling-machines. CONSTRUCTIONS ELECTRO-MECANIQUES DE ST.- ETIENNE, ANCIENNE USINE WAGEOR. April 27, 1948, No. 11556. Convention date, May 5, 1947. [Class 83 (iii)] An electric drilling machine comprises a main electric motor adapted to rotate a gear member slidably connected to a screw-threaded rod forming part of a tool-holder, and a secondary electric motor having a high rotor slip which is connected to drive a nut on the screw-threaded rod, longitudinal displacement of the rod resulting from the difference between the speeds of rotation of the gear member and the nut. The main electric motor 4 drives through reduction gears 9, 10, 11, and a sliding key connection, the L.H. threaded rod 13 the end of which 14a forms a socket for a drill. An auxiliary motor 15 in a front casing 2 drives through gearing 18, 19, 20, and lugs on the latter gear wheel, a nut 25 on the threaded rod. The nut is normally driven faster than the rod and the latter thus moves axially to feed the drill, but, on the latter encountering excessive resistance the auxiliary motor having a high rotor slip automatically slows down to reduce the feed until the obstruction has been overcome. The auxiliary motor is reversed to give a high speed return to threaded rod and tool. The nut and rod are easily removable from the machine so that they may be replaced by members of different ratio when drilling in a different medium is to be performed.
Patent GB-685859-A (GB)
Title: Improvements in or relating to air filters
Inventor: DOCKREE BERNARD RICHARD
IPC: B01D46/02
Filed: 1950-05-09
Abstract: 685,859. Filtering gases. SOLDANS, Ltd. May 3, 1951 [May 9, 1950], No. 11564/50. Class 8 (ii). An air filter comprises a dust-laden air inlet 60 in an upper air-tight compartment A from which depend a plurality of impervious tubes 40 discharging into a lower air-tight compartment B whereon heavy particles are deposited whilst the remaining air-borne particles make a complete reversal of flow upwards through filters, e.g. filter socks 50 surrounding the tubes 40; clean air being discharged at an outlet 16. The tubes 40 are removably supported by the floor 24 of the upper compartment A, and .the filter socks are secured to flanged upper and lower discs 42, 44. A shaker rod 55 is hooked to loops attached to each sock and dust so removed together with dust deposited on reversal of floor collects in a drawer 28.
Patent GB-567268-A (GB)
Title: Improvements in foundry moulding machines
IPC: B22C17/10
Filed: 1943-07-16
Abstract: 567,268. Moulding-machines. WALLWORK GEARS, Ltd., and TAIT, W. July 16, 1943, No. 11573. [Class 83 (i)] In a turn-over moulding-machine, the mould or pattern table q is so mounted on the turnover frame d that it can be swung outwardly and away from the axis of the pressing means g. The frame d may have a fixed bracket n to which is pivoted an arm o in which can slide guide rods s of the table q and a jarring ram r<1>. In the normal position the free end of the arm o is supported by a bracket v of the frame and held by. a spring catch w and, when swung outwardly, by a wheel w. The frame d also carries a series of rollers m<1> arranged along each side of the pressing head h so that when this head is used, after inversion, to draw the mould, this is received on the rollers m<1> aligned with a roller track 18 as in Fig. 4. In a modification, the side members of the frame dare replaced by two cylinders 2, Figs. 3 and 4, the plungers 3 of which carry a cross-member 4 on which the head h is adjustably mounted and the table q is carried by arms o, 9 pivoted at 8 and d<10> so that it can be swung onto a separate jarring device 24 provided with a positioning stop 14. The rollers m<1> are carried from the cylinders 2, the closed ends of which are connected by a bar 1. Two of these machines 19, 20, Fig. 5, may be arranged in conjunction with one jarring device 24 and their rollers m<1> may, in the inverted position, align with gravity roller tracks 180, 181 so that if the machine 19 makes bottom moulds and 20 top, these may be assembled at station 21, filled with molten metal at 22 and knocked out at 23.
Patent GB-441465-A (GB)
Title: Improved rubber or elastic yarn filaments or thread and method for the production thereof
IPC: B29D99/00
Filed: 1934-04-18
Abstract: Rubber threads having a textile feel are made by injecting coagulant into latex containing comminuted fibres such as cotton, wool, or silk.  Either the coagulating stream or the latex bath may be dyed. The latex may be mixed also with water- or alkali-soluble cellulose esters or ethers or methyl cellulose, or synthetic or natural resins. The thread of coagulum may be then coated with a mixture of adhesive and fibre, or fibre alone, or twisted with another thread in the tacky state, or stretched p  before complete coagulation, or covered with a soluble coating so as to be rendered non-extensible during weaving or knitting and extensible thereafter by dissolving away the coating.  A core thread of spun glass or paper may be run through the latex bath with the coagulating stream to give a temporarily non-elongating thread which may be made extensible by rubbing so that the core is broken up into fine dust.  Specification 402,364 is referred to.
Patent GB-780255-A (GB)
Title: Improvements in or relating to ring spinning or twisting machines
IPC: D01H9/02
Filed: 1954-04-22
Abstract: 780,255. Doffing arrangements for textile spinning &c. machines; twist tubes. MULLENSCHLADER, C. O. April 22,1954, No. 11692/54. Class 120(2) A ring spinning or twisting machine has two spindle rails mounted for transverse movement so that the two rows of spindles may alternately be brought into operative position with regard to a ring rail to permit replacement of full bobbins while spinning and twisting continues. In a spinning machine provided with slubbing bobbins 13, slubbings pass through twist tubes 15 to a ring rail and spindles 20. Twist tubes 15 are driven through a belt 17 from an electric motor 16. The spindles 20 on each spindle rail 19 have a common drive belt that passes round a pulley 21 which can be coupled to the driving pulley of an electric motor 23 by raising the spindle rail or lowering the driving motor. When a bobbin has been filled, the spindle rail 19 is first lowered until the spindle tips are clear of the ring rail 18 and then moved transversely. The second spindle rail 19 is then moved beneath the ring rail 18 and raised until flange rings 32 fixed to the spindles make contact with rotatable inner ball races 28 carried beneath the spinning rings to trap the threads. Rotation of the spindle thereupon severs the threads. Full bobbins may be removed from their spindles by a fork or comb 34. In another embodiment, two spindle rails are connected to form a single frame with one drive belt embracing all spindle whorls. Each thread clamping arrangement of this embodiment has a ring carried by four spring-mounted ball bearings for engagement with a flange fixed to the corresponding spindle.
Patent GB-162277-A (GB)
Title: Weighing machines provided with a printing apparatus
IPC: G01G23/18
Filed: 1921-04-23
Abstract: 162,277. Krupp Akt.-Ges., F. April 26, 1920, [Convention date]. Printed records, apparatus for giving.-Relates to a weighing-apparatus of the kind wherein an indicating shaft sets a type drum which is locked in printing position by the engagement of a locking-pawl with the teeth of a locking wheel. The invention consists in connecting the shaft of the type drum with the indicating shaft by an elastic coupling and in arranging the locking-pawl so as normally to project, under the action of a spring, into a gap between two teeth of the locking wheel. The indicating shaft B drives the coaxial shaft of the type drum E through a flat spring D. The locking wheel E<7> is rigidly connected to the type drum and is engaged by the locking-pawl J. The type drum is provided with rings of type for printing the weight and the postal charges in various districts. Each ring of type has a corresponding key lever such as G<5> all having slight loose movement on the shaft H except the weight key lever, and each key lever being provided with a pawl g<6> and a hammer F<5>. An arm M and a projection m<1> both rigid with the shaft H control the position of the locking- pawl J by means of a spring K and a screw N. Also fast on the shaft H is an additional key lever for printing the date and the name of the place. In using the device a card is introduced into a slot t<1> and the requisite district key G' is depressed thus rotating the shaft H, drawing the locking-pawl J completely into the teeth of the locking wheel and actuating the printing hammers F<5> of the selected district key, the weight key and the key for the date and name of place, the remaining district keys being inoperative by reason of the loose motion on the shaft H. The key levers are returned by springs g<8>. An ink ribbon automatically fed forward is provided.
Patent GB-940026-A (GB)
Title: Optical instrument fitted with adjustable eyepieces
IPC: G02B23/18
Filed: 1960-04-04
Abstract: 940,026. Telescope and binocular eyepieces. CARL ZEISS STIFTUNG, [trading as C. ZEISS]. April 4, 1960 [April 2, 1959], No. 11745/60. Heading G2J. An optical instrument for example a telescope or binoculars, has adjustable eyepieces with an elastic ring 3 fixed between each adjustable eyepiece mount 1 and the stationary part of the eyepiece mount 2, said ring being compressible by means of an adjustable threaded ring 4. Ring 3 has a braking effect when the eyepiece is adjusted.
Patent GB-215793-A (GB)
Title: Improvements in and relating to ball-jointed hinge connections for tip wagons and other tipping vehicles
IPC: B61D9/08
Filed: 1924-05-12
Abstract: 215,793. CambessÚdÞs, J. May 12, 1923, [Convention date]. Addition to 205,480, [Class 65 (ii), Hinges &c.]. Tip - wagons. - Four ball - jointed hinges of the kind claimed in the parent Specification are interconnected by operating mechanism whereby when one of the front pair of hinges is secured in position the rear diagonallyarranged hinge is released. The arrangement shown in the Figure is suitable for a tip-wagon, and so that the body may be tipped about the rear hinges a, b or about either pair of the side hinges. The eccentric spindles 8 which lock the shanks of the ball-joints a - - d to the vehicle are connected in pairs through the operative connections 25 - - 32. Springs 33 normally maintain the rear ballpoints in the locked position with the joints c, d in the unlocked position. When the lever 7<c> is moved to secure the ball joint c to the vehicle, the links, &c. 31 - - 25 operate the spindle 8 of the joint a; the vehicle is then free to be tipped about the side joints b, c. In a similar manner, by moving the lever 7<d> the joint d can be secured and the joint b released for the vehicle to be tipped above the side joints d, a. In a modified construction of operating gear, the joints a, c and b, d are connected by links arranged diagonally across the vehicle. The operation of the hinges may also be controlled hydraulically. channelled ring 26 forming part of the upper deck. The ring 26 is adapted to receive rollers 30 at the ends of rods 29, which are secured to a strap 13 on the tube 16 and support a sector-shaped mask or landing-board 31 adapted to bridge any space between the top of the staircase and the upper deck of the vehicle. To cause the staircase to face either side of the vehicle, it is rotated by a detachable handle 43 through shafts 39, 36, and a pinion 35 meshing with a toothed ring 34 secured to the tube 16. In either of these positions, the staircase is locked by a rod 44 guided by some stationary part of the vehicle and pressed downwards by a spring 45 into one of two perforations in a horizontal plate which rotates with the tube 16. A lever 47 connected to the upper end of the rod 44 carries at its other end a plate 49 formed with a socket 50 for the squared end 42 of the handle 43 and adapted to slide in front of the socketed end 40 of the shaft 39 so that downward movement of the handle raises the rod 44 and brings the end 42 of the handle in front of the end 40 of the shaft 39 when it can be engaged therewith to rotate the staircase.
Patent GB-198531-A (GB)
Title: Improvements in game boards
IPC: A63F3/02
Filed: 1922-04-27
Abstract: 198,531. Judson, C. B., and Judson, N. April 27, 1922. Board games.-A multiple game board consists of a cabinet having a glazed top 5, Fig. 2, a platform 6, and a strip of flexible material upon which various game boards are printed, the strip being mounted upon rollers 2 which can be rotated to bring any board under the glazed top of the cabinet. In a modification, separate game boards 8, Fig. 4, and a spring-pressed platform are provided, the board required being withdrawn from the front of the cabinet and placed immediately beneath the glazed top of the cabinet. The cabinet is provided with a drawer 7 for containing the pieces for the various games.
Patent GB-887871-A (GB)
Title: Improvements in and relating to the separation of benzene from hydrocarbon mixtures
Inventor: WYNNE MICHAEL DAVID
IPC: C07C7/14
Filed: 1959-04-08
Abstract: Benzene is recovered from hydrocarbon mixtures distilling between about 30 DEG C. and about 180 DEG C. and obtained by thermally cracking a straight run petroleum distillate with steam at 650 DEG C.-850 DEG C. by cooling to obtain a slurry of solid benzene and mother liquor preferably containing not more than 50% by weight of solids and separating the solid.  The feed may be concentrated by distillation in order that it contains at least 25% by weight of benzene.  Crystallisation is effected by cooling to -30 DEG C. to -70 DEG C. or lower.  The solid, separated by filtration or centrifuging, may be washed with pentane.  The mother liquor may be concentrated by distillation to a benzene concentration of at least 25% by weight and recycled to the crystallisation.
Patent GB-544877-A (GB)
Title: Improvements in closures for vacuum containers
IPC: B65D39/00
Filed: 1941-09-17
Abstract: 544,877. Closures for containers. BRAND, H. M. Sept. 17, 1941, No. 11915. Convention date, Oct. 30, 1940. [Class 125 (iii)] A hole 4 in the lid 2 of a container 1, or in the container itself is covered by a lamella 5 of rubber, cellulose ribbon, metal foil or the like, and one end of this is held by the suction member 6, which is shaped to contain the lamella. When a suction pump is applied to the tube 8 the lamella 5 is lifted from the hole 4, and the pressure inside the container 1 and the suction member 6 is reduced. Eventually the external pressure on the suction member 6 deforms it and the lamella is pressed tightly down over the hole. The cavity 7 in the suction member is of such shape that the wall 9 has a uniform bending strength. As shown in Fig. 2, a metal casing 13 may surround the suction cap, and the head of a spring loaded spindle 14 may be embedded in the wall 9 to determine and control the pressure at which the lamella is closed.
Patent GB-119663-A (GB)
Title: An Improved Bleaching Boiler Plant.
Inventor: TUETSCH CONRAD
IPC: D06B5/00
Abstract: 119,663. T³tsch, C. Oct. 2, 1917, [Convention date]. Circulating fluids through materials.-A bleaching-kier comprises inner and outer closed vessels 1, 2, the outer vessel 2 containing a heating-coil 10 and communicating by a pipe 25 with a pump 22 having a discharge pipe 21 with a four-way cock 20, which serves to place one section of the circulation pipe 18 of the inner vessel 1 in communication with the pipe 21 and the other section in communication with a pipe 23 leading back to the outer vessel 2; with this arrangement, the inner vessel takes the pumping pressure and can be made considerably lighter than the outer vessel, which takes the higher boiling pressure. To prevent the pressure in the inner vessel from rising above a predetermined maximum, counterweighted valves 1 are provided in the sections 11 connecting the inner vessel with the circulation pipe 18. Three-way cocks 26, 26<a> enable the pipe 25 to be connected respectively to a discharge pipe 27 and to a pipe 27<a> leading to a water container. The upper part of the circulation pipe 18 is removable with the covers 5, 7 of the vessels. The pipe 23 is curved to direct the lye into the vessel 2 in a tangential direction. The inner vessel may be made in one or more parts, each provided with a straining-bottom. In use, an airescape cock 31 is opened, and lye is admitted by a cock 28 into the outer vessel 2 and pumped through the lower section of the circulation pipe 18 into the inner vessel 1 until it flows off through the cock 31 and attains a sufficient height in the outer vessel 2 as indicated by a water-gauge 41 and index 42; the cocks 2S, 31 are then closed and the lye circulated by means of the pump 22, the direction of circulation being reversed when desired by means of the four-way cock 20. In the arrangement shown in Fig. 3, the vessels are disposed horizontally, and the inner vessel 1 is rotatably supported by means of channel-bars 35 on rollers 36 carried by a carriage 37, which runs on rails 38 secured to the outer vessel 2.
Patent GB-724595-A (GB)
Title: Improved elements for photolithography
IPC: B41N1/14
Filed: 1953-05-01
Abstract: 724,595. Photo-lithographic printing elemerits. KODAK, Ltd. May 1, 1953 [May 3, 1952], No. 12184/53. Addition to 694,224. Class 98 (2). The element consists of successive layers (a) the hydrolysed surface of, (b) cellulose acetate-butyrate containing antihalation dye, (c) cellulose organic ester excluding cellulose acetate-butyrate, (d) copolymer of vinyl chloride, vinyl acetate and an α,#-ethylenically unsaturated dicarboxylic acid, (e) metal foil, and (f) a copolymer the same as (d); and this may be sensitized after manufacture and so stored or may be sensitized shortly before use as with bichromate or ferric iron salts. On exposure under a design such as a line or half-tone negative, development by swabbing with aqueous caustic soda and neutralization of excess alkali with acetic acid the exposed and developed areas receive greasy printing inks, remaining areas repel such inks. The element differs from that of the parent Specification only by the presence of the cellulose acetate-butyrate layer (b), the use of which produces halftone dots of greater resistance than direct use of hydrolysed surfaces of other esters such as cellulose triacetate. Preparation of the element and modifications thereof follow the pattern of the parent Specification. Specifications 617,227, 678,321 and 678,323 also are referred to.
Patent GB-116807-A (GB)
Title: An Improved Hand Seed Sowing Appliance.
Inventor: PALLETT FRANK
IPC: A01C7/02
Filed: 1917-08-25
Abstract: 116,807. Patlett, F. Aug. 25, 1917. Planting-tools.-A hand seed-distributor comprises a container A' detachably connected to a regulating and delivering device formed by a short tube fitting on the mouth of the container and provided with an opening K in a wall closing its other end through which the seeds pass to a delivery trough D. A rotatable plate F is mounted on the wall at the end of the tube and is adapted to be turned by a lever B to bring any one of a number of different sized apertures L into line with the opening K or to close the opening K altogether. When adjusted, the plate F is locked in position by forcing a projection on the lever B into one of a number of holes J in the tube. A guard-plate E prevents seed from escaping through these holes.
Patent GB-220981-A (GB)
Title: Improvements in devices for signalling internded changes in the direction of road vehicles
IPC: B60Q1/34
Filed: 1924-01-01
Abstract: 220,981. Brenneisen, M. Jan. 1, 1924. Road-traffic signals on vehicles; semaphore signals.-Front and rear indicating arms m, n are mounted on pulleys b, d and are turned simultaneously to either side by means of a handle a attached to the pulley b of the front arm through a cable q passing over additional pulleys. Two front arms may be employed adapted to be clutched to their supporting pulleys in one direction of movement only and retained normally upright by a spring. The arms may be hollow and fitted with lamps r covered by red glass, the lamp circuits being closed in the operative positions through contacts p.