baber/WOPTO huggingface dataset:
Patent GB-535378-A (GB)
Title: Improvements in or relating to the production of ethers of dimethylol urea
IPC: C07C273/18
Filed: 1939-10-05
Abstract: 535,378. Ethers of dimethylolurea. DU PONT DE NEMOURS & CO., E. I. Oct. 5, 1939, No. 27250. Convention date, Oct. 5, 1938. [Class 2 (iii)] Di-ethers of dimethylurea are made by reacting a di-alkyl ether of di-methylolurea with an alcohol or phenol containing a larger number of carbon atoms than is contained in at least one of the alkyl radicles of the ether, and removing the liberated alcohol by distillation. The invention is particularly applicable to obtaining dialkyl ethers in which the alkyl radicles contain six or more carbon atoms from the lower alkyl ethers, such as the dimethyl and di-ethyl ethers. The reaction may be effected in neutral, acid or alkaline solution, in the presence of hydrocarbons such as benzene, toluene and xylene which assist in the removal of the lower alcohol. The preparation of the di-n-butyl, di-n-decyl, dilauryl and di-sec. hexyl ethers from the dimethyl ether is described in examples. Aralkyl and aryl ethers may also be obtained by using such compounds as benzyl alcohol, phenol and cresol for the ether interchange. The products may be used in the preparation of pigmented or non- pigmented coating compositions. Specifications 522,643 and 522,644 are referred to.
Patent GB-1091215-A (GB)
Title: Improvements in and relating to dispensing apparatus
IPC: G01F11/04
Filed: 1965-06-28
Abstract: 1,091,215. Delivering measured quantities of liquid or granular material. A. E. SKINNER. June 28, 1965, No. 27265/65. Heading B8N. An apparatus for dispensing a measured quantity of liquid or granular material comprises a valve body 2 rotatable in a housing 1 having inlet and outlet ports 8, 9 and a piston 7 slidable in a passage 6 in the valve body so that during rotational movement of the body, the passage can be aligned with the ports. The valve body is pivoted on shafts 3, 3<SP>1</SP> and, together with the piston and housing, may be made from glass, metal or plastic; the mating surfaces are coated with or fitted with rings made of a self-lubricating material such as P.T.F.E. or nylon. Alternatively the parts may be made entirely of such materials. The piston may be of any suitable cross-section such as rectangular, square, elliptical or circular; when of circular cross-section, the piston may be prevented from turning by means of a key-and-slot device or magnetic device. In order to indicate when the material has been fully dispensed, holes may be formed in the wall of the housing, the valve body and piston and then filled with a transparent material. When all the holes are in alignment a beam of light is able to pass through and actuate a photoelectric cell which may then cause the valve body to be rotated automatically for another dispensing operation or operate a counter. In order to vary the amount of material dispensed, pistons of different length may be fitted.
Patent GB-1527817-A (GB)
Title: Brake drum in a planetary change-speed gearbox
IPC: F16D67/04
Filed: 1976-06-30
Abstract: 1527817 Change speed gear DAIMLERBENZ AG 30 June 1976 [10 July 1975] 27298/76 Heading F2D [Also in Division B3] In a planetary change-speed gear on a motor vehicle, a combined brake drum and clutch cylinder 17, splined at 15 to a sun wheel Vs for holding it stationary or clutching it to an input driven element 27, has a double-walled outer cylindrical surface for a brake band 19 formed by folding over on to an inner section 22 a part 20 which, in the initial blanking operation, lies in a radial plane (Fig. 2, not shown). Slots 23 receiving peripheral teeth on clutch discs 24 are formed in the inner section 22 by windows 30 pierced before the folding operation, the webs remaining at the ends of the windows after folding being subsequently pierced to produce open-ended grooves. Another planet train precedes that shown.
Patent GB-790747-A (GB)
Title: Improved filter rod for cigarettes or the like
IPC: A24D3/02
Filed: 1956-09-06
Abstract: 790,747. Making tobacco smoke filters. KORBER, K. Sept. 6, 1956 [Nov. 28, 1955], No. 27309/56. Class 130. A filter rod of synthetic resin fibres 1<1>, Fig. 6, having a paper wrapper 2 with a fold seam is made on a continuous-rod machine having a main rod-former 5, Fig. 1, a presser wheel 6 and a seam folder 7 with folder fingers 8, Fig. 3, and followed by crimp. ing rollers 9, 10, the roller 9 lying within the rod in a slot 72 of the folder shoe 71 and being driven by the adjustable pressure of the roller 10 communicated via the paper 2 which is thicker than cigarette paper.
Patent GB-1007903-A (GB)
Title: Feed control means for down-the-hole rock drill rigs
IPC: E21B19/08
Filed: 1964-07-02
Abstract: 1,007,903. Boring earth &c. INGERSOLLRAND CO. July 2, 1964 [July 15, 1963], No. 27319/64. Heading E1F. A "down-the-hole" percussive drill is mounted on a spindle 23 rotatable in a head 11 which is moved by a fluid pressure motor 16 down a drill rig for feeding the drill, the spindle being slidable within a spindle driver 22 and forming with the driver a chamber 31 for pressure fluid and valve means 27, 35 for controlling flow of the fluid from the chamber to the motor in accendance with the longitudinal position of the spindle relative the driver. During automatic feed of the drill, air from a compressor passes through lines 51, 50 to a motor (not shown) rotating the driver in the head, the motor having a pinion 20 engaging a gear 21 on the driver which has splines 25 engaging splines 24 on the spindle. Air from a bypass line 50A flows into the chamber 31, and, with the spindle and driver positioned as shown, passes through the spindle bore 33 to drive the drill. When soft earth is encountered by the drill the spindle moves downwardly relative to the driver to bring the piston 27 below the port 35 so that air flows from the chamber into the line 44 to drive the motor 16 which drives a chain to force the head and drill downwardly. When the feed causes the piston to close the port there is sufficient residual pressure in the passages to bring the parts back to the position shown. The motor 16 may be operated under manual control, a valve 52 being set to direct air from the line 51 into the lines 58 or 59 depending on whether the head and drill are being raised or lowered.
Patent GB-893836-A (GB)
Title: Process and apparatus for two-stage withering of tea-leaf
Inventor: MCTEAR IAN
IPC: F26B15/00
Filed: 1958-08-26
Abstract: 893,836. Tea-withering. CROMBIE, P. Aug. 26, 1958, No. 27382/58. Class 34(2) Tea leaf to be withered is spread on trolleys 7 and wheeled on rails 8 to a withering tunnel 1 open at one end 1 b to atmosphere and connected at the other end lc to an air duct 3 having a fan 5 and provided with hot air from a heater 6a or from a heater 6 which also provides the hot air needed for a similar tunnel 2. The tea leaf is half-dried in the tunnel 1 and is then led into the tunnel 2, through open end 2b for full drying, the flow of air in the tunnel 2 being in the opposite direction to that in the tunnel 1. After drying in the tunnel 2 the trolleys are wheeled to a discharging area B, tunrtables 9 being provided to facilitate movement of the trolleys.
Patent GB-264942-A (GB)
Title: Improvements in aircraft
IPC: B64C27/04
Filed: 1925-11-02
Abstract: 264,942. Kelly, T. D. Nov. 2, 1925. Screw propellers.-A lifting screw for an aircraft comprises four blades E surrounded by a ring F which carries additional flexibly mounted blades I.
Patent GB-326780-A (GB)
Title: An improved method of and means for the production of photographs in natural colours
IPC: G03C7/08
Filed: 1928-12-13
Abstract: 326,780. Ruzicka, C. Dec. 13, 1928. No Patent granted (Sealing fee not paid). Divided on 326,764. Colour photography, multicolour screens for.- The particles used in the preparation of grain screens are produced by precipitation from coloured solutions of gelatin, isinglass or synthetic gums or resins, the precipitation being caused by increase of temperature and pressure or by the addition of a precipitant. In an example, the gum derived from orthocresolic acid and formaldehydes is dissolved in boiling alcohol, dyed with eosine and the solution cooled and subjected to pressure of 100 lbs. per sq. inch. In another example, isinglass is dissolved in water, dyed with quinoline yellow, and alcohol added during agitation of the solution, when the isinglass is precipitated. In all cases particles of three or more colours are mixed and applied to the backing or emulsion of a film or plate, in a layer of nitrocellulose or a cellulose ester.
Patent GB-1350787-A (GB)
Title: Copying method
IPC: G03G9/08
Filed: 1971-06-11
Abstract: 1350787 Electro-photography RICOH K K 11 June 1971 [12 June 1970 14 Oct 1970] 27593/71 Heading G2H A charge image on a photo-conductive material is developed with resin or silica containing an amine and the developed image is pressed into contact with a diazo copying material, whereupon the amine image catalyzes the formation of an azo image. A single amine image may be used as a master in the formation of a plurality of azo images. A number of resins, amines, diazonium compounds and coupling agents are specified. A charge may be applied to resin developer particles by admixing with iron powder (and using magnetic brush development) or with insulating beads (and using cascade development). The resin may have a particle size of 0.1-50 microns and contain 0. 5-25% of amine. The silica may have a particle size of 0.1-500 microns and contain 0. 5-50% of amine. Pressing together of the photo-conductive and diazo materials may be effected by hand or between rollers. Heating to 50-100‹C may be effected during pressing. Unreacted diazonium compound may be decomposed by uniform exposure to U. V. radiation.
Patent GB-503842-A (GB)
Title: Improvements in or relating to hydraulic power apparatus
IPC: F15B21/0427
Filed: 1937-10-11
Abstract: 503,842. Hydraulic transmission of power; gun-fire control. INDIA RUBBER, GUTTA PERCHA, & TELEGRAPH WORKS CO., Ltd., TARRIS, F. J., and WEBB, D. Oct. 11, 1937, No. 27627. [Class 69 (ii)] [Also in Group XXI] Hydraulic apparatus comprises a hydraulic motor device for actuation by liquid under pressure, a hydraulic circuit in or to part of which the motor device is directly connected and through which hydraulic liquid is intended to be circulated at such a pressure that the motor device remains inoperative, and, to secure operation of the motor device, means to control the flow of liquid away from that part of the circuit in or to which the motor device is connected, a further hydraulic connection for supplying additional liquid under pressure to the aforesaid part of the circuit and means to control the liquid flow through the further connection. Pressure liquid is supplied by the pump 12 to the motor 60, which may be constructed as in Specification 500,725, via small lines 57, 56, and returns by line 55, 72, 54 and ports 63, 64, controlled by valve 61, and line 59 to the reservoir 10 ; this circulation is at too low a pressure to operate the motor ; the main pump supply through line 53 is blocked by the valve 61. On movement of the valve 61 to the left, line 54 is cut off from the reservoir and placed in communication with the line 53 whereupon the motor is operated. The valve 61 may be moved hydraulically under the control of valve 42, or may be remotely mechanically controlled. The lines 55, 56 are preferably flexible. Means for heating the liquid may be incorporated ; the heating effect of the pump may however be relied on; the lines 57, 56 may contain a restriction 70 which also serves to cause heating. The lines may be lagged. The invention is conveniently utilized in vehicles or aircraft in a hydraulic system for effecting and controlling the operation of auxiliary devices, such as brake mechanisms, guns (e.g. machine guns), and camera guns, and more particularly in the case of aircraft, retractable undercarriages and bomb release gear also, or for similar devices provided on the vehicles or aircraft. Specification 488,489 also is-referred to.
Patent GB-227237-A (GB)
Title: Improvements relating to circular loop-wheel knitting machines
IPC: D04B15/76
Filed: 1923-11-03
Abstract: 227,237. Marshall, F. H. Nov. 3, 1923. Circular machines.-Fabric patterned by tuckwork is produced by two superimposed notched presser wheels A, B actuated so that either or both are in action, thereby producing three different results at each feeder. In the embodiment shown each wheel is secured to a radial slide C actuated, through a vertical lever N and horizontal lever H, by a pattern wheel or cam M, both cams M being secured to a ratchet wheel L intermittently rotated by a pawl R pivoted to a lever R<1> engaged by a stud or roller on the revolving part of the machine. In a modification the slides are actuated by bell-crank levers engaging a pattern chain.
Patent GB-778120-A (GB)
Title: Process of producing reactive magnesium carbonate
IPC: C01F5/24
Filed: 1955-09-28
Abstract: Magnesium oxide, hydroxide, or substances containing said compounds such as calcined dolomite or magnesite, are reacted in aqueous suspension with carbon dioxide, or gases containing carbon dioxide, while maintaining a pH between 7.3 and 9.3; the carbonate hydrate reaction product is separated and dried, if necessary, below 200 DEG C., generally below 130 DEG C. and preferably 70 DEG -120 DEG C. The reaction is preferably carried out between 35 DEG  and 55 DEG C. to produce the very active trihydrate since the pentahydrate forms below 10 DEG C. and the monohydrate above 55 DEG C.
Patent GB-482143-A (GB)
Title: Improvements in walls for furnaces or other heating apparatus
IPC: F27D9/00
Filed: 1936-10-12
Abstract: 482,143. Walls for furnaces &c. STRAND, T. A. R., BLOMQUIST, U. 0., and ALBIHN, H. F. Oct. 12, 1936, No. 27671. Convention date, Oct. 16, 1935. [Class 51 (i)] A wall for furnaces or other heating apparatus comprising tubes 3 connected to headers 1, 2 has the intermediate spaces between the tubes filled entirely or in part by one or more parallel tubular members 4 of smaller diameter than the tubes 3 and connected at both their ends to the tubes 3. One or a number of such tubular members 4 may be arranged on one side or on opposite sides of a tube 3. The tube members 4 are connected to the tubes 3 by welding throughout the whole or part of their length. Where fins are provided on the tubes 3 the tubular members 4 are disposed in front of the fins to protect them against direct heat radiation.
Patent GB-206670-A (GB)
Title: Improvements in and relating to cloth boards and similar articles
IPC: B65H75/06
Filed: 1922-10-12
Abstract: 206,670. Smith, H. B. Oct. 12, 1922. Paper tubes.-A hollow piece board or core for a roll of fabric consists of a flat sided tubular body of fibrous sheet material such as cardboard or stiff paper and adhesively-secured reinforcing-strips of sheet material conforming to the edge formation of the body. Blocks of laminated cardboard, wood, &c. may be secured by adhesive or by tacks or staples in the ends of the board and at intermediate parts. The shell or body may be impregnated with a hardening, strengthening, or stiffening agent such as glue, size, or sodium silicate. In the form shown in Fig. 10, the body is composed of a sheet 1 of cardboard having overlapping edges 2, 3 secured by adhesive, and adhesively-secured internal longitudinal strips 7 of cardboard conforming to the rounded edges of the board and having marginal portions 8 extending over flat side portions. In the form shown in Fig. 7, the body comprises two adhesively-secured sheets 60, 61, the abutting ends 62, 63 of one sheet being separated from the abutting ends 64, 65 of the other sheet, and internal longitudinal reinforcing- strips 68. The form shown in Fig. 12 is made by advancing two main sheets 15 and connecting them adhesively to continuous side strips 16, reinforcing-strips 18, and when desired binding-strips 20, the resulting material being cut into lengths to form individual piece boards. The piece shown in Fig. 10 is made by passing cardboard sheet 1 from a roll 30, Fig. 1, through a tank 90 where it is impregnated with sodium silicate, over guide rollers to a heated drying roller 93, and between pressure rollers 34, 35 where it is united fo reinforcing-strips 7 passing from rolls 31, 32 over glueing-rollers 33. An edge 3 of the sheet 1 is glued by a roller 36 and the assembled strips 1, 7 then pass over a former or support 38 provided with a heated pipe 39a disposed around the edges of the forward part of the former. The edges of the sheet 1 are folded one over the other by conical rollers 40 acting in conjunction with grooved rollers 41. The overlapping parts are pressed together by rollers 42 and after leaving the former 38, the resulting tubular material is drawn forwardly by rollers 46, 47. Rotating cutters 55 adapted at times to move forwardly with the material are periodically traversed across it to cut it into individual piece boards B, into which the end or other plugs may be inserted. The board B<1> shown in Fig. 7 is made in a similar manner, the two sheets 60, 61 of cardboard being fed from laterally displaced rolls, and one of the sheets passing over a glueing-roller. ,
Patent GB-1069384-A (GB)
Title: Method for the automatic digital positioning of objects, particularly machine parts,or for measuring their position using binary code scales
IPC: G01D5/347
Filed: 1964-07-06
Abstract: 1,069,384. Selective signalling systems. LICENTIA PATENT - VERWALTUNGS G.m.b.H. July 6, 1964 [July 6, 1963], No. 27735/64. Heading G4H. The position of a machine slide 1 is measured by means of a coarse coded scale 3 fixed to the slide and a fine coded scale 8 which is movable independently on a carriage 7. In order to position slide 1 in accordance with a binarycoded signal derived from a programme tape, the present position coarse signals sensed by photo-electric head 6 from scale 3 are compared with the corresponding bits of the command signal and the resulting error signal is used to drive motor 2 so as to effect positioning of slide 1 to within the range defined by track A11 of scale 3. At the same time, the three bits from tracks A25-A27 of scale 8 sensed by head 10 are compared with the corresponding bits of the command signal, and the resulting error signal is used to position carriage 7 so that the pattern made up by tracks A25-A27 of scale 8 and in register with head 10 corresponds to the pattern made up by tracks A11-A13 of scale 3 and in register with head 6. An additional fine adjustment is then made so that microscope head 11 is precisely centred on the line of scale 4 which has been brought into its field of view by the previous movement of scales 3, 8. The two scales are now effectively locked together by virtue of the seeking arrangement comprising head 11, so that the fine adjustment of slide 1 can now be performed by comparing the combined outputs of scales 3, 8 with the entire command signal and using the resulting error signal to drive motor 2. The arrangement may also be used to give an indication of the position of a member to which scale 3 is attached. The signals derived by head 6 from tracks A11-A13 of scale 3 are compared with those derived from tracks A25- A27 of scale 8 and scale 8 is aligned with the appropriate section of scale 3 as before. The combined outputs of scales 3, 8 are then applied to a binary-decimal converter coupled to an indicator.
Patent GB-282942-A (GB)
Title: An improved collapsible roof for saloon motor cars, and motor cars with rigid upper frame work
IPC: B60J7/04
Filed: 1926-11-05
Abstract: 282,942. Charstone, W. J. Nov. 5, 1926. Hoods. - In a vehicle having rigid side frames a flexible cover adapted to run in runways on the top of the side frames is secured to hinged rods g at each side connecting brackets e carrying rollers f adapted to run in the runways. The runways comprise each two channels a arranged as shown and carrying between them rollers over which a wire c or cable may run, which wire passes over additional rollers k and is driven from a drum adapted to be driven from the engine or by hand. The flexible cover when in position to cover the car is held in position by a spring pawl engaging a rack i and the cover provides a weatherproof at the sides.
Patent GB-920727-A (GB)
Title: Twisted glass fiber yarn package and method for producing same
IPC: D02G3/18
Filed: 1961-08-01
Abstract: 920,727. Spinning glass yarns. PITTSBURGH PLATE GLASS CO. Aug. 1, 1961 [Aug. 10, 1960], No. 27830/61. Class 120 (2). In spinning yarns of continuous glass filaments into a package with a cylindrical body and a conical top on a bobbin 29 having a flange 42 at its base, to prevent the yarns from "sloughing-off " and from building up into a " hump " in the region of the flange, the ring 48 reciprocates relatively to the spindle 24 and is arranged at a small angle to the perpendicular to the axis of the spindle, so that successive turns of yarn wound on the bobbin cross over the preceding turns and the build-up at the base of the package is avoided. Reference has been directed by the Comptroller to Specification 800,555.
Patent GB-1098204-A (GB)
Title: Improvements in or relating to tire treading apparatus
IPC: B29D30/30
Filed: 1966-06-22
Abstract: 1,098,204. Tyre-building apparatus. NATIONAL-STANDARD CO. June 22, 1966 [April 21, 1966], No. 27866/66. Heading B7C. A tyre tread servicer includes an endless belt 65 mounted for longitudinally reciprocable movement for accumulating a continuous tread strip 25 during the interval of application of successive lead ends thereof on to a drum 110. The strip 25 is fed from an extruder 16 with interchangeable die 22 around an adhesive transfer roll 39 and between a drive roll 44 and a pressure roll 67 bearing on the inner face of belt 65. Sagging of the strip is prevented by roller or endless conveyers 31, 94, 95, 101. When the tread applicator arm 103 is down it holds a limit switch LS1 in a position preventing the twospeed drum motor (124) (Fig. 1, not shown) from running at high speed. After the end of the strip has been severed and the arm 103 is pivoted upwardly, switch LS 1 is moved to actuate a clamp 85 (see also Fig. 10, not shown) which clamps on to the belt, whereupon the friction between roll 44, strip 25, belt 65 and roll 67 causes the belt frame 62 to move to the right until the clamp is released or the belt strikes a limit switch LS2, which switch stops the extruder and the variable-speed motor 47 driving roll 44. If the belt frame moves too far to the left it strikes a limit switch LS3, thereby de-energizing the drum motor (124).
Patent GB-1400621-A (GB)
Title: Temperature-sensing device for continuous casting moulds
IPC: B22D11/16
Filed: 1972-06-14
Abstract: 1400621 Thermocouples USS ENGS & CONSULTANTS Inc 14 June 1972 [9 Feb 1972] 27900/72 Heading H1K The temperature of the inner wall 10 of a continuous casting mould is measured by means of a thermocouple comprising a probe 25 urged by a spring into contact with the inner wall of the mould which forms the second limb of the thermocouple, the spring 34 being enclosed in a housing 19 mounted in the outer wall 12 of the mould and the probe 25 passing through 0-ring seals 35, 36 so that the cooling water in passage 13 does not contact the spring 34. The probe 25 is provided with an insulating sheath 28 so that only its point 26 contacts the inner wall 10 within a bore 27 which is filled with a flexible sealant 41 such as silicone grease to prevent contamination of the thermocouple junction by impurities in the cooling water. A plurality of probes may be used to determine the level of the molten metal in the mould.