baber/WOPTO huggingface dataset:
Patent GB-615433-A (GB)
Title: Structure of reinforced concrete including concrete bars with tensioned steel reinforcement
IPC: E04C5/07
Filed: 1945-10-17
Abstract: 615,433. Reinforced concrete. SMEDEGAARD, E. J. Oct. 17, 1945, No. 27237. Convention date, Feb. 7. [A Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 17, 1945] [Class 20(iv)] Ordinary reinforcing bars in concrete structures are partly or wholly replaced by thin, flexible concrete bars, each having tensioned steel reinforcement and also one or more untensioned steel bars or wires embedded therein, the latter bearing a part of the compressive stress due to the tensioned reinforcement, the quantity of concrete used being the least amount necessary to bear the remainder of such stress. The stress initially placed on the tensioned reinforcement may be such that both tensioned and untensioned members, with increasing tensile stress on the bar, reach their yield points simultaneously, when the concrete bar will be loaded to its full tensile strength. The tensioned and untensioned reinforcements are arranged in the bar so that any tendency for the bar to become curved is avoided. The concrete bars may be of any convenient section and may be cut and fitted in the same manner as ordinary reinforcing bars. Specification 599,774 is referred to.
Patent GB-1361991-A (GB)
Title: Precision measuring instruments
IPC: G01B3/18
Filed: 1972-06-14
Abstract: 1361991 Screw-and-nut gearing JAMES NEILL HOLDINGS Ltd 14 June 1972 [11 June 1971] 27386/71 Heading F2Q [Also in Division G1] In a screw-and-nut mechanism, 5, 17, free play and backlash between the screw 5 and nut 17 is eliminated by forming the nut of a compressible material (e.g. a plastics material), positioning the nut in a counterbore of a tubular stem 6 and compressing the nut with a flange 19 of a cap ring 20 which is screwed to the outside of the tubular stem 7. The nut, which has a plain bore portion 18, is compressed between the shoulder at the end of counterbore and the flange 19 and can be longer than the counterbore, as shown, or shorter with the flange 19 having an annular lip turned in. The frictional engagement between the compressed nut 17 and the tubular stem 6 prevents it from rotating. The invention is shown incorporated in a micrometer, and may also be applied to a depth gauge.
Patent GB-841276-A (GB)
Title: Liquid distributing device for trickling apparatus
IPC: B01D1/22
Filed: 1958-08-26
Abstract: <PICT:0841276/III/1> <PICT:0841276/III/2> A liquid distributing device wherein liquid trickles down vertically disposed trickling plates 1a, 1b, 1c, e.g. in an evaporator, comprises auxiliary distributing surfaces 2, 3 arranged in pairs between, perpendicular to and touching said plates, the liquid being received at the upper ends of the auxiliary surfaces and passed to the plates by capillary action, and the pairs of auxiliary surfaces are connected at their lower ends by a member formed of two walls 4, 5, directed upwards and towards each other or form a downwardly directed groove of triangular or similar cross-section which directs surplus water towards the plates and canalizes the air current passing upward between the plates.  The vertical trickling plates are formed with horizontal undulations which, by capillary action, spread the liquid uniformly over the plate.  The auxiliary surfaces are formed with undulations arranged in a herring-bone formation to lead the liquid to the trickling surfaces each side.  Distilled, e.g. water, is supplied to the auxiliary surfaces by overflowing the reservoir 8.  The arrows f and f2 indicate the path taken by the vaporizing air current and f1 the path taken by the liquid.
Patent GB-491690-A (GB)
Title: Improvements in or relating to milling machines for grain
IPC: B02C4/38
Filed: 1937-03-06
Abstract: 491,690. Roller mills. SIMON, Ltd., H., and FREROTTE, A. March 6, 1937, No. 27490. Divided out of 482,481 under which a Specification was laid open to inspection under Sect. 91 of the Acts, Jan. 26, 1938. [Class 59] In a roller mill driven by an electric motor, hand control means is provided for varying the distance apart of the rollers and for operating switch gear such that the electric circuit is closed when the rollers are brought together and is opened when the rollers are separated. The control means also operates a clutch driving the feed rollers. The hand lever 15 is provided with an eccentric 32 loosely mounted on a shaft 25 to which is fixed a member 41 connected to the eccentric by a screwed rod 36 by which the cam is rotated relatively to the shaft to vary the crushing gap between the rollers. The eccentric is connected by a pin 48 to rods 49, 50, 54, the rod 54 carrying a spring 57 forming a resilient support for an arm 56 operating an eccentric pin 65 which moves the sliding part 67 of a clutch on a shaft 68 driving the feed rollers 75. 76 through spur wheels. An extension 33 of the lever 15 is adapted to contact a switch 80 to cut off the current to the electric motor when the lever is moved downwardly to separate the rollers, the switch being turned into its closed position as the lever is moved in the reverse direction. The rollers are separated by the lever through an eccentric pin 28 on the shaft 25, the pin being connected to a depending rod provided with spring abutments which engage the end of the pivoted lever carrying the movable roller.
Patent GB-491691-A (GB)
Title: Improvements in or relating to milling machines for grain
IPC: B02C4/38
Filed: 1937-03-06
Abstract: 491,691. Roller mills. SIMON, Ltd., H., and FREROTTE, A. March 6, 1937, No. 27491. Divided out of 482,481 under which a Specification was laid open to inspection under Sect. 91 of the Acts, Jan. 26, 1938. [Class 59] In a roller mill the movable roller is operated bv an arm which extends through a slot in the mill casing, the arm being provided with a shield which is arranged to obscure the slot in all positions of the arm. As shown the eccentric 25 operates the lever arm to which the adjustable roller is pivoted and the eccentric lever arm 15 is provided with closure plates 29, 30 which co-operate with the mill casing at 27, 11 to close the aperture in the casing in all positions of the lever.
Patent GB-976512-A (GB)
Title: Method and apparatus for spinning natural fibres or staple fibres
IPC: D01H4/08
Filed: 1961-07-28
Abstract: 976,512. Spinning yarns. SPINNBAU G.m.b.H. July 28, 1961 [July 28, 1960], No. 27500/61. Heading D1D. In spinning yarn from slivers of staple or natural fibres by means of a hollow spinning roller having retaining needles on its inner periphery, fibres are combed out of the sliver, in an opening roller and carried by an air stream to be deposited over the needles of the spinning roller whence fibres are withdrawn as twisted yarn. In Fig. 1, the spinning-roller 1 is formed as a cup by a flange 1a and rotates in a housing 2, being mounted on a spindle 47 with a whorl 3. A feed roller 11 and an opening-roller 12 are each provided with needles 15, 16 and are mounted in a housing having an aperture 43. Roller 12 communicates with the cup of roller 1 by a passage 17; when air is drawn out of housing 2, a current is set up through aperture 43, apertures 19 in roller 12, passage 17 and apertures 21 in roller 1, so that as a sliver 14 is fed by roller 11 to be opened by the needles on roller 12, fibres are drawn through passage 17 to be laid on teeth at 1a on the inner periphery of roller 1. Air is also drawn in through a central nozzle 7 in roller 1; when a piece of twisted yarn is inserted therein it is drawn into a space between the body of roller 1 and a flange 6 on the housing 2, and when it reaches the layer of fibres on the inside of flange 1a begins to twist off fibres as the roller rotates in the form of a continuous twisted yarn which can be withdrawn and wound up on a reel. The flange 6 defines with the inner wall of housing 2, a groove 6a which serves to keep the fibres travelling through passage 17 separate from the twisted yarn. Two or more openings and feed rollers may feed to the spinning-roller, so that yarns composed of mixed fibres may be formed, the composition of the yarn being raised by periodically stopping one or other of the feed rollers. The twist imparted may be supplemented by a false twister positioned at or after the nozzle 7; this may take the form shown in Fig. 5 where the false-twist is imparted by the twisted yarn rolling in grooves 33a. Arrangements of a belt and a tensioning-pulley are described for driving the false-twister from the shaft which drives the whorl 3. An arrangement is also described where a number of spindles 47 are arranged in a common housing and two such housings are arranged one on each side of a central shaft two spindles in each housing being driven by a common belt. An electric-stop-motion may be provided to de-clutch the feed roller when a sliver fails or is absent, and the current of air out of the housing 2 may be generated merely by the rotation of the roller 1.
Patent GB-918824-A (GB)
Title: Improvements relating to fluid flow regulating devices
IPC: A62B9/02
Filed: 1961-07-28
Abstract: 918,824. Respiratory appliances. GARRETT CORPORATION. July 28, 1961 [Aug. 1, 1960], No. 27507/61. Class 81 (2). [Also in Group XXIX] A valve, used for example in a respiratory device, or as a pressure regulator, has the body 11 divided into inlet, outlet and demand chambers 31, 15 and 14, respectively, by a movable wall 12 attached to a pair of diaphragms 24, 25 of equal area and having convolutions 29, 30 which upon movement of the wall 12 roll on the inner surfaces of the body 11 and outer surfaces of the wall, which action, in the case of the lower diaphragm 25, is used to control the flow of breathable gas from the inlet chamber 31 to the demand chamber 14 by opening or obturating passages 41 through the lower part of the wall 12. An exhalation valve 35, closed by a spring 39, controls a number of apertures 38 through the wall 12 which interconnects chambers 14, 15; the latter is open to the ambient medium via openings 18. The wall 12 is centred by springs 43, 44 when the pressures in chambers 14, 15 are equal; the spring 44 is adjustable so that a load may be applied to one side of the wall. Upon inhalation the wall 12 moves into chamber 14 whereby the diaphragm 24 uncovers the passages 41 to admit breathable gas into chamber 14. Upon exhalation, the pressure in chamber 14 increases and the wall 12 moves into chamber 15 whereby the passages 41 are obturated; when the wall 12 abuts a stop, not shown, the pressure in chamber 14 unseats valve 35 whereby the exhalation products escape to the ambient medium through chamber 15. When the pressures in chambers 14, 15 are equalized the spring 39 closes the valve 39. In another form, the exhalation valve is comprised by a number of passages in the wall 12 between chambers 14, 15, the ends of which opening into chamber 15 are controlled by the convolution of the upper diaphragm. In a further form, the exhalation valve is dispensed with and a reference pressure is applied to the chamber 15 whereby the device functions as a pressure regulator.
Patent GB-1142046-A (GB)
Title: Method of and apparatus for pelletizing powders
IPC: A23P10/20
Filed: 1966-06-20
Abstract: 1,142,046. Pelletizing powders. UBE KOSAN K.K. 20 June, 1966 [27 Aug., 1965], No. 27556/66. Heading B5A. Pellets of less than 5mm. diameter are produced from powders e.g. of fertilizers, cement, minerals, abrasives, refractory materials, uranium, metal, resins, agricultural chemicals, foodstuffs, or carbon, by forming a fluidized bed of the powder by means of a fluidizing gas and introducing a liquid into the bed to cause agglomeration of the powder which is forced to circulate by introducing a jet of further gas through a pellet discharge outlet in a fluidizing gas distributer. The powder may be introduced moist or powder and liquid may be introduced simultaneously in admixture e.g. as a slurry. Seed pellets may also be introduced into the bed with the powder. The fluidized bed is formed by a porous gas distributing member 16 through which fluidizing gas from a blower 17 passes and is supplied, at inlet 33, with powder from hopper 14 by a gas stream from blower 12 or, alternatively, by a screw conveyer. Larger pellets are selectively discharged at outlet 32 by the jet of further gas, introduced through the outlet 32 from blower 21. An atomizing device 6, comprising concentric openings (34, 35) (Fig. 2, not shown) for respective gas and liquid feeds from a compressor 9 and pump 10, injects liquid or slurry directly into the bed and which gas may also comprise a further jet of circulating gas. The pellets are discharged to a hopper 20 through one or more pipes 19 and are fed to a container 23 and dried by the passage therethrough of a heated gas stream. Minute particles containing seeds which escape via exhaust port 36 above the fluidized bed are separated from the gas by a cyclone 2 and recycled via a pipe 5.
Patent GB-625281-A (GB)
Title: Prepaartion of di(chlorethyl)benzene and of divinyl benzene
IPC: C07C17/14
Filed: 1946-09-13
Abstract: Di-(chlorethyl) benzene is prepared by contacting diethyl benzene with chlorine in the absence of light at 80-120 DEG  C. Phosphorus penta- or. tri-chloride or other chlorine substitution catalyst may be present.  The product is separated by distillation, treated with alkali such as caustic soda or potash to give the corresponding dihydric alcohol, and heated with potassium bisulphate and hydroquinone to give divinyl benzene.  In an example, commercial diethyl benzene containing phosphorus pentachloride is treated at 100 DEG  C. with chlorine and, after flushing with an inert gas, and addition of hexadecylamine to p  prevent decomposition, the product is fractionated at 16 mm.  The di-(chlorethyl) benzene fraction is treated at 100 DEG  C. with 10 per cent aqueous sodium carbonate, and the carbinol extracted with ether and converted to divinyl benzene.
Patent GB-1149087-A (GB)
Title: Improvements in or relating to the production of resin-coated sheet material
Inventor: SMITH ERIC
IPC: D04H1/488
Filed: 1966-06-21
Abstract: 1,149,087. Coated sheet materials. B. W. NORTHERN TEXTILE PROCESSES Ltd. 16 June, 1967 [21 June, 1966], No. 27654/66. Heading B2E [Also in Division D1] Sheet material having beads or globules of thermoplastic resin adhering to one surface in spaced relationship in a controlled pattern is produced by feeding a base sheet between a roller and a straight bar carrying a row of spaced apart needles, which needles project from the bar towards the roller, supplying the surface of the roller with a coating of a thermoplastic resin composition, reciprocating the bar so that the needles repeatedly penetrate the base sheet without any substantial relative movement between the needles and the sheet in the direction of travel of the latter, whereby the needle points after each penetration of the sheet pick-up resin composition from the roller and on withdrawal through the support sheet leave a row of spaced apart beads or globules of resin composition adhering to a surface of the sheet, and then passing the treated sheet through a drying chamber to gel or cure the resin. The material may be used as a fusible interlining. The needle carrying bar may also be oscillated in a direction transverse to the path of travel of the sheet material whereby the beads or globules left adhering in one row on the support sheet are staggered in relation to the beads or globules adhering to the sheet in the next adjacent row. The base sheet may be woven, of slack open weave or dense close weave, knitted, a non-woven tissue or foamed plastic material. The thermoplastic resin composition may be based on polyvinyl chloride or co-polymers of vinyl chloride with vinyl acetate incorporating a plasticiser. In Fig. 1 sheet material 10 passes between a straight bar 16 carrying a row of needles 17 and a resinapplying roll 18 provided with doctor 19, and then passes through a drying chamber 21. Reciprocal motion is imparted to the needle carrying bar 16 by connection to rods 24 of a self-aligning eccentric 25, the rods sliding in a fulcrum 26. The needle carrying bar is also oscillated in a direction transverse to the path of travel of material 10 by means of a pressure-operated piston and cylinder device, the piston being connected to the end of the bar 16. Driving means for the rolls and parts of mechanism of the apparatus are illustrated in Figs. 2, 3 and 4 (not shown). The sheet material having the applied beads or globules of the thermoplastic resin adhering to one surface thereof can be securely bonded to other sheet material by the application of heat and pressure. By using a brightly coloured resin paste, material having a sequinned appearance may be produced.
Patent GB-1089750-A (GB)
Title: Improvements in or relating to fastening means for tools
IPC: A24C1/18
Filed: 1965-06-30
Abstract: 1,089,750. Releasable fastenings. ARENCO A.B. June 30, 1965 [Sept. 25, 1964], No. 27678/ 65. Heading E2A. A fastening means for releasably fastening a tool member 3 to a support member 4 comprises at least two guide pins 13, 14 on one member and holes 15, 16 corresponding to the pins in the other member said pins and holes being located on different sides of a shoulder-forming part 19 which part is centrally situated in the means and disposed on one member, and at least one spring clip 1, 2 fastened to the other member and arranged to snap onto said shoulder-forming-part whereby the tool member is resiliently attached to the support member. In the construction shown the support member is a plate 4 which is secured to a rod 5 by means of a cutter pin 6, the rod 5 being part of a press plunger in a moulding machine; two spring clips are used, each of which comprises two portions, each shaped like a figure six, the two portions being joined together by a connecting portion and the free end portions being bent towards each other so that they are aligned parallel with the connecting portion. The free end portions are received in a hole in the plate 4 so that the clip straddles the plate and can be pivoted relative to the plate. The shoulderforming-part 19 is attached to the tool by means of a screw 20 and the part is formed with a pair of shoulders 17, 18 each shoulder being engaged by the connecting portions of one of the clips to releasably secure the tool to the plate 4. Each shoulder is provided with a groove to receive the connecting portion of its clip. The plate 4 is recessed to receive the part 19 and on each side of the recess one of the pins 13, 14 is situated, the corresponding holes 15, 16 in the tool each being larger in diameter than its pin to allow a small amount of movement of the tool relative to the plate 4. The portions of each clip adjacent the free end portions are curved and are received in a recess in the rod 5. In a modification the pins can be on the tool and the holes in the plate and there can be more than two. The parts 19 can be carried by the plate 4 instead of by the tool and in this case the clips are carried by the tool.
Patent GB-487020-A (GB)
Title: Improvements in or relating to the manufacture of esters of polysaccharides
IPC: C08B31/04
Filed: 1937-10-13
Abstract: Polysaccharides other than cellulose, such as starches, dextrin, glycogen and inulin are esterified by pretreating with an aqueous organic acid, and then esterifying with formic acid solely or with an organic acid anhydride with or without the corresponding acid.  The acid employed for the pretreatment is preferably a lower aliphatic acid and may correspond with the ester group or one of the ester groups to be introduced into the initial material, and a small proportion of a catalyst such as sulphuric or phosphoric acid may be added.  In examples, (1) potato starch is pretreated with 50 parts glacial acetic acid and 5 parts water at 60 DEG  C. for an hour, and the cooled mass is esterified with acetic anhydride and glacial acetic acid; (2) potato starch is pretreated with 20 parts formic acid, 10 parts water, and 4 parts sulphuric acid and is then esterified with formic acid; after 10 hours the starch formate is precipitated by adding sodium acetate solution.
Patent GB-228616-A (GB)
Title: Improvements in wireless receiving apparatus
IPC: H04B1/08
Filed: 1923-11-06
Abstract: 228,616. Johnston, F. R. Nov. G, 1923. Receiving sets, construction of; aerials. - A receiving set in the form of a unit adapted to be positioned with the headphones on a person's head comprises an aerial a, detector p, and one or more tuning devices k, k<1>, k<2>. Fig. 1 shows the construction and Fig. 3 the circuit. Housings g, h are provided for the tuning coils k, k<1>, k<2> and detector respectively, and a stud on one of the earpieces contacting with the wearer's body is connected to telephone terminal n<1> as earth connection. Condenser b comprises insulafed plates, alternately connected, opening and closing concertina fashion under the control of a screw j. The coils k<1>, k<2> are provided with operating knobs l moving in longitudinal slots in the casing g, and nuts may be provided to lock them in their adjusted positions. In a modification, the aerial wire is wound in sections on the formers a<1>, a<2>, and a loop may be arranged outside the casing to hang by the side of the wearer. The Provisional Specification states that the detector and tuning devices may be mounted on the earpieces, and that the aerial may be supported from the headband by miniature masts.
Patent GB-1338882-A (GB)
Title: Control devices for actuators operated by pressure fluid
IPC: F15B13/04
Filed: 1972-06-14
Abstract: 1338882 Valves ADEOLA AG 14 June 1972 [23 July 1971] 27914/72 Heading F2V A control device for a pressure fluid actuator comprises a casing 1 having a cylindrical bore 2 with portions of smaller 2a and larger 2c diameter in which is mounted a reciprocable piston 16 with a larger end portion 16c, a smaller end portion 16a and a middle portion 16b of minimum diameter which defines an annular chamber which is in permanent communication with the atmosphere through port 23, which casing is provided with a port 11 which connects with port 4 and a port 14 which connects with the chamber for one extreme position of the piston while the port 11 connects with the chamber and the port 14 connects with a port 6 for the other extreme position of the piston. Ports 11 and 14 connect to either side of an actuating piston 13b. Port 5 is connected to a supply of compressed air and port 6 can be connected to the same supply or to exchaust by means of a 3 port 2 way valve 8. The casing is also provided with a by pass 25, 29, 26 which facilitates the rapid exhaustion of the upper part of the piston 13b in the downward movement (as shown) of the piston 16. A filter is provided at the exhaust port 23 which reduces noise.