baber/WOPTO huggingface dataset:
Patent GB-242615-A (GB)
Title: Improvements in resilient teeth
IPC: A61C13/10
Filed: 1925-10-21
Abstract: 242.615. Withycombe, R. M. Nov. 5, 1924, [Convention date]. Teeth, artificial.-In artificial teeth formed of a porcelain element, a base plate, and a cushion of resilient material, such as soft rubber, arranged between the porcelain and the base plate as described in Specifications 25028/13 and 111,675, the porcelain is hollowed at its base to form a chamber to receive a substantial bulk of the resilient material. The porcelain tooth 1, Fig. 1, is hollowed out at its base to form a chamber 3 and is formed with a bore 2 opening on the occlusal surface and adapted to receive a post 9 secured to a base plate 8. The post may be a rigid member or may consist of two parts united by a hook-and-eye connection 10, and is threaded to engage a nut 12 whereby the tooth is secured in position. A soft rubber pad 5 comprises a central portion 6 filling the chamber 3, and a relatively thin peripheral portion 7 upon which the edges of the tooth 1 rest. The base plate may be a flat member as shown in Fig. 1 or may be flanged to cover the exposed edge of the pad 5. In the case of metal dentures such as bridges the base plate may be constituted by part of the denture. The parts of the tooth may be assembled and the material forming the pad 5 vulcanized before setting up in a vulcanite denture, or during revulcanization in repair work, or after setting up the tooth on a metal denture, and the pad adheres to the base plate and preferably also to the walls of the chamber 3 which may be lined with bakedin metallic filings for this purpose. A hollow space may be formed in the pad 5 at the base of the post 9.
Patent GB-408231-A (GB)
Title: A method of repairing and correcting uneven sealed or unsealed road or like paving surfaces
IPC: E01C7/35
Filed: 1932-09-22
Abstract: A method of repairing and correcting uneven sealed or unsealed road surfaces while under wheel traffic consists in preparing and laying on the road surface a loose and workable composition consisting of finely broken stone or slag or both, and sand grains, filler aggregates and a non-volatile binding substance and distributing the composition along the surface by mechanical distributers, e.g. multiple drags or graders, to plane the surface and fill the depressions therein, the action of the distributers being repeated as required as the composition is gradually compacted by the wheel traffic, whereby an even vibrationless surface is obtained without the necessity for mechanical or hand rolling of the laid composition. In preparing a suitable composition, the finely broken stone &c. which must all pass through a 3/8 " screen, is dried and mixed with 3-4 per cent by weight of binder.  The binder may be tar, bitumen, waste oil, cut-back mixtures or emulsions.  Sealed surfaces may be sprayed with fluxed tar or bitumen or a mixture of both before applying the composition.  For unsealed surfaces the method may be to sweep the surface, spray with fluxed tar &c., leave it exposed to the air for 4-24 hours and then apply the composition, with or without stone or gravel chippings of 3/8 "-\ba1/2 " size and 20-40 per cent by weight.
Patent GB-940012-A (GB)
Title: Improvements in or relating to flexible joints for transmitting torque
IPC: F16D3/68
Filed: 1962-07-11
Abstract: 940,012. Universal joints. SOC. APPLICAZIONI GOMMA ANTIVIBRANTI S.p.A. July 11, 1962 [Dec. 2, 1961], No. 26619/62. Heading F2U. A universal joint of the type comprising prestressed rubber studs 1, 2, arranged with their axes along the sides of a flat polygon, interconnected by rigid radial members 16, 17 having spider engaging bores 11, has axial projections 22 formed on radially inwardly projecting portions of the radial members engaging a metal plate 28 to retain at least spider-associated set of studs in pre-stressed condition. The metal plates may be axially spaced from the mid-plane of the joint by amounts substantially equal to half or quarter of the joint thickness. In another embodiment, one set of studs is retained by plates at half joint spacing and the other set of studs by plates at quarter joint spacing, the two metal plates being aligned by a ball and socket joint. The invention allows the joint to be held in working conditions during the balancing of one shaft. Specification 886,715 is referred to.
Patent GB-152011-A (GB)
Title: A method for the saving of heat in the production of ammonia from cyanides or cyanamides
IPC: C01C1/08
Filed: 1920-09-17
Abstract: In the production of ammonia by treatment of cyanides and cyanamides with water under pressure, the cyanide or cyanamide in the hot state as produced is placed in the pressure vessel so as to utilize the contained heat for raising the water to the necessary temperature for the production of ammonia.
Patent GB-665574-A (GB)
Title: Improvements in and relating to sewing machine work supports
IPC: D05B77/00
Filed: 1949-10-18
Abstract: 665,574. Sewing-machines. BRUTSCH & CO. Oct. 18, 1949 [Nov. 2, 1948] , No. 26758/49. Class 112. A sewing-machine work support partially encloses the work arm 5 of a sewing-machine, and comprises a frame 1 and hinged plates 3.
Patent GB-1041739-A (GB)
Title: Improvements relating to drying chloroprene polymers
IPC: F26B3/30
Filed: 1963-07-08
Abstract: 1,041,739. Drying chloroprene polymer webs. E. I. DU PONT DE NEMOURS & CO. July 8, 1963 [July 10, 1962], No. 26996/63. Heading F4G. A wet sheet 10 of a chloroprene polymer is conveyed on an endless conveyer 11 in a sinuous or horizontal path past infra-red heaters 13 at a maximum emission wavelength between 2 and 4 microns and cooled by currents of a gas at a temperature below 75‹ C. and inert to the polymer from spaced perforations in horizontal T-tubes 15, the amounts of radiation and gas being correlated to maintain the sheet at a temperature between 100‹ and 160‹ C.
Patent GB-407630-A (GB)
Title: Improvements in sanitary mattresses
IPC: A61G7/02
Filed: 1933-10-02
Abstract: 407,630. Infants' sanitary garments. TAUSIG, H., Mannheim, Germany. Oct. 2, 1933, No. 27054. Convention date, May 11. [Class 141.] A sanitary mattress has a covering 9 for the occupant of the bed secured thereto to the underside of which is fastened by buttons 21 a swaddling garment 20 consisting of a waistband 18, which can be buttoned round an infant, and a crutch piece 17 which is doubled under and buttoned to shoulderstraps 19.
Patent GB-425458-A (GB)
Title: Improvements in joiners' and like cramps
IPC: B25B5/06
Filed: 1934-09-20
Abstract: 425,458. Joiners' cramps. THORN, J. W., Oakfields, Brampton Road, Bexley Heath, Kent. Sept. 20, 1934, No. 27095. [Class 61 (ii)] A joiner's or like cramp, particularly for use in gripping a number of wood planks to be sawn transversely, comprises a fixed jaw a and a movable jaw b adjusted by a lever o having a segmental gear n engaging a rack p. A lever q serves for locking purposes. Attached to the fixed jaw a is a pair of bars c, d, having upstanding semicircular flanges k, i between which the lever o is pivoted. The rack is carried by a bar e having a slot g in which fixed pins h, h<1> engage. The bar e is attached to the movable jaw and abuts in the most fully closed position of the cramp against the fixed jaw at f, the pin h also at that time engaging the end of the slot g. In the most fully opened position the pin h<1> engages the end of the slot. The lever o is shown in full and in broken lines in the two extreme positions of the clamp. Locking of the cramp is obtained by the action of the lever q bolt m, washer u and the upstanding flanges k, i, which grip the lever o.
Patent GB-426402-A (GB)
Title: Improvements in or relating to the production of strong and impervious rubber materials
IPC: C08J5/02
Filed: 1933-10-03
Abstract: A process for increasing the gas impermeability and tear resistance of goods of or containing rubber deposited directly from aqueous dispersions comprises diffusing a fluid hygroscopic material-e.g. glycerine, ethylene glycols, ethanol amines or sulphonated products of castor oil-into the deposited rubber.  In an example, an inner tube mandrel is dipped into a latex composition and a deposit is allowed to form, is superficially dried for a few minutes and is then immersed in a glycerine bath. The mandrel is withdrawn and the deposit is dried and cured.  A pressure difference may be created between the rubber surface making contact with the fluid hygroscopic material and the surface remote therefrom during both the latex dipping and the glycerine dipping, e.g. a porous form may be used, the dipping operations being performed under vacuum.  Artificial dispersions of rubber may be used.  Specification 303,544, [Class 70], is referred to.
Patent GB-272569-A (GB)
Abstract: 272,569. Marks, E. C. R., (Gardner Calculator Co.). Feb. 3. 1926. Adding and subtracting apparatus transfer-mechanism. - The totalizer units of a calculating-machine are interconnected for transfer purposes by an arrangement of gears, including epicvclic and internal wheels, mounted upon a hub loosely carried by a shaft rocked transversely to throw the receiving pinions into and out of gear with the actuators- The machine shown in Fig. I has two totalizers carried bv shafts 403 and actuated by sectors 610<c> forming part of three-armed levers 610 connected at 654 to the differential stop-bars 615. Each unit of the totalizer comprises a loose hub 430, Fig. 6, having two portions 430<b>, 430<c> concentrically formed and an end portion 430<a> eccentric to the axis. Secured to the smallest portion 430b is a disc 473 provided with ten pins 473<a> on its face. Mounted loosely on the middle portion 430<c> is the 9-toothed receiving-pinion 472 to which is also fixed a gear wheel 471 having nine internal rounded teeth 471<a>. Loose on the hub portion 430<a> is a 9-toothed spur-wheel 470 the teeth of which are cut away radially so that the uncut parts engage throughout with the internal teeth 471<a> while the shortened parts are adapted to engage the pin disc 473 of the next higher denomination along a portion only of the pitch circle depending upon the situation of the eccentric. The lowest disc 473b is held from rotation by a tooth 413<a> of the detent bar 413.
Patent GB-924605-A (GB)
Title: Improvements in or relating to needle bearings
IPC: D01H5/56
Filed: 1960-08-05
Abstract: 924,605. Stuffing-box substitutes. W. SCHAEFFLER, and G. SCHAEFFLER, [trading as INDUSTRIEWERK SCHAEFFLER, OHG.]. Aug. 5, 1960 [Aug. 31, 1959], No. 27272/60. Class 122 (5). A needle bearing, for supporting bottom rollers of spinning machine drafting mechanisms, comprises an annular outer race 33, Fig. 4, cooperating along its internal cylindrical surface with needles 26 and having, coaxially disposed on each side, a closure ring 27 and at least one lip-packing ring 31 which are spaced from the needles, a sleeve 32, coaxial with and thin in relation to the race, extending from the race at each axial end thereof to surround the associated packing and closure rings and to terminate in the region of an external bevelled surface 29 of the closure ring and co-operating with the associated closure ring and the race to enclose the associated packing ring or rings. The needles run on an inner race 24 secured to a shaft 19, 20. The rings 27 are mounted on the race 24 or they may be integral with the shaft. The sleeves 32, which may be integral with the race 33, form radial sealing gaps 34 with the rings 27. The packing rings 31 are fixed to the sleeves and are provided with lips 35 which slide on the race 24. Grease is fed through a nipple 15 to the bearing, to the space between the packing and closure rings and to the sealing gaps 34. The nipple 15 also serves to secure the outer race against rotation. In a modification, lip-packings are also mounted on the race 24 and sealingly engage the sleeves. In a further modification, Fig. 6, the needles 26 run on a hardened journal 38 on which are mounted packing rings 43 having extensions 42 with which sealing rings 39 of softer material engage.
Patent GB-1349951-A (GB)
Title: Fluid flow rate transducers
IPC: G01F1/37
Filed: 1971-04-19
Abstract: 1349951 Fluid flowmeter G C SPACEK 19 April 1971 [24 Feb 1970] 27279/71 Headings G1A and G1R In a fluid flowmeter for internal combustion engines an opaque float 26 is moved against the action of gravity or a resilient bias Fig.6B (not shown), by fuel passing through a fuel line 25, the movement varying the amount of light that a photo-resistor 21 (photo conductance devices in Fig.3, not shown), receives from a source 24 after it has passed via a mask shaped to produce a linear relation between the detector output and the flow rate. In the Fig.2 embodiment a mask with a wedge shaped aperture is employed. In another embodiment Fig.3 (not shown), employing a transducer whose conductance varies with incident light and wherein the light channel is located in the narrow end part of the tapered section of the fuel line shown in Fig.2, a light mask with a longitudinal rectangular aperture is used. The description discloses modifications of the fluid flow meter to produce a "miles-per-gallon" meter Figs.1, 5, 6A, 6B (not shown).
Patent GB-1056501-A (GB)
Title: Process and apparatus for producing carbon black
IPC: C09C1/50
Filed: 1965-06-28
Abstract: Carbon black is produced in the furnace process by introducing a liquid hydrocarbon feedstock axially into a cylindrical combustion zone and establishing about the periphery of the feedstock a burning mixture of hydrocarbon fuel and free oxygen containing combustion gas at a pressure exceeding 20 p.s.i.g. produced by a compressor driven by a gas turbine.  The feedstock is pyrolytically dissociated to a carbon black aerosol which is then quenched and carbon black recovered.  The cooled effluent from the combustion zone may be used to drive the gas turbine; alternatively the flue gas from the turbine may be used as the combustion supporting gas.  The combustion gas, e.g. air, may be preheated by passing through an annulus surrounding the combustion zone in a countercurrent direction to the reaction products. The temperature of the combustion zone may exceed 2000 DEG C.  The compressor may be on a common shaft with the turbine. The major portion of the compressed air may be passed to a combustion zone where hydrocarbon fuel is burnt and the hot gases used to drive the turbine.  The minor portion is passed directly to the carbon black reactor.  The feedstock may be hydrocarbon oil distillate fractions, thermal tar residue, shale oil or, coal tar.
Patent GB-158379-A (GB)
Title: Improved adjustable device for supporting radiators, pipes and the like
IPC: F16L3/00
Filed: 1919-11-06
Abstract: 158,379. Mort, J. Nov. 6, 1919. Radiators.-A support for a radiator or pipes comprises a fixed box-like member, open at the front, constructed to be built into or attached to a wall or provided with a leg and foot to stand on the floor, and supporting a movable memberadjustable vertically and longitudinally by means of a bolt passing through slots in the fixed member and a tapped hole in the adjustable member. Figs. 1 and 2 show the fixed member A provided with slots a, a<1> through which passes a bolt C which screws through a tapped hole in the adjustable member B. The member B may be provided with a strap E, shown in Fig. 8, and may also be constructed so as to support two pipes.
Patent GB-616580-A (GB)
Title: Apparatus for measuring radiation
IPC: G01K17/02
Filed: 1946-09-11
Abstract: 616,580. Radiometers. NEDERLANDSCHE CENTRALE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK. Sept. 11, 1946, No. 27351 Convention date, Feb. 11, 1944. [Class 97 (iii)] A radiometer comprises a cover 2 through which the radiation passes to the liquid in the bulb 1, the liquid thereby being evaporated and the amount subsequently condensed in tube 3 being proportional to the amount of radiation absorbed. A proportion of the vapour passes through aperture 5 into the space between the cover 2 and the bulb 1, thus reducing energy losses by conduction and radiation. The liquid may be dyed so as to absorb radiation from the required portion of the solar spectrum only, or absorption may be arranged to take place at the wall of the bulb 1 which in this form is made of a good heat conductor covered with a suitable absorbing layer. The bulb 1 may have a downwardly extending conical form so that the dependence of the calibration of the instrument on the angle of incidence of the radiation is reduced to a minimum. In an alternative construction the bulb 1, Fig. 3, is maintained filled with liquid by the capillary action of a finely divided powder in the tube 3<1> from a reservoir tube 41, the amount of energy being measured by the amount of liquid passing from the reservoir, and means 8, 9 are provided for returning the condensed liquid to the reservoir when required.
Patent GB-1504370-A (GB)
Title: Apparatus for the serial analysis of blood samples
IPC: G01N33/483
Filed: 1975-06-27
Abstract: 1504370 Blood analysis apparatus INSTRUMENTATION LABORATORY SpA 27 June 1975 [8 Nov 1974] 27366/75 Heading G1N [Also in Division F2]  Apparatus for analysing blood comprises O 2 , CO 2  and pH sensors mounted in the same enclosure and a valve which allows simultaneous calibration of the pH sensor and the O 2  and CO 2  sensors by a buffer solution and gas respectively while maintaining the two calibrating fluid circuits separate. Preheaters and humidifiers for the gases are also included. As shown, the apparatus comprises O 2  sensor a, CO 2  sensor b, pH sensor c connected to reference cell d via membrane m, buffer pH solution sources Ph, P'h with associated heaters h, i and reference gas sources MG, M'G' with associated humidifiers u,u'. Cleansing fluid is supplied from LL and waste flows to LS. The sample inlets are f or f'. The system is controlled by programmer T which operates pumps M, valves E', E" and main valve g, which has four operating positions gA to gD corresponding to the different sample inputs and calibrating stages. The valve g is rotary (see division F2) and associated with an optical encoder which feeds back the valve position to programmer T. The valve is thermostatically controlled and has a very small volume. Preferably the enclosure is transparent.
Patent GB-481915-A (GB)
Title: Improvements in or relating to propelling pencils
IPC: B43K21/16
Filed: 1936-11-09
Abstract: 481,915. Pencil holders. FARRINGTON, H. M. Nov. 9, 1936, No. 27408. [Class 146 (iii)] In a pencil holder having a step-by-step adjustment of the lead, the lead-carrier c, which is slidable 'within limits in the casing, is slotted intermediate its ends so as to leave the ends unslotted, and the slotted portion is formed with one or more tapered projections c<2> adapted to be engaged by a conical bore of a collar d to cause the carrier to grip the lead over a substantial part of its length. The carrier is under the control of a spring g mounted in a bore in the point section, and the movement of the collar is limited by the upper end of the point section and an indentation a<2> in the casing to provide for the release and gripping of the lead. The reciprocation of the carrier may be effected by pressure on or rotation of a knob which is removable to provide for insertion of the leads. A partition h may be mounted in the casing to form the base of a refill receptacle, or provision for the automatic feeding of refills from a magazine to the lead-carrier may be made. In a modification, the collar d is fixed and serves for the connection of the casing and point section, the spring g acting between the collar and a washer secured to the lead-carrier.
Patent GB-921873-A (GB)
IPC: A01D43/00
Filed: 1959-07-07
Abstract: The subject-matter of this Specification is included in that of Specification 921,871 but the claims differ.  Specification 921,874 also is referred to.
Patent GB-801175-A (GB)
Title: Improvements in or relating to phonographs
IPC: G11B17/16
Filed: 1955-02-28
Abstract: 801,175. Automatic gramophones. HANSEN, H. C. Feb. 28, 1955, No. 27512/57. Divided out of 801,174. Drawings to Specification. Class 40 (2). The description is substantially the same as that in Specification 801,174, from which the present Specification is divided. The claims, however, relate to the general arrangement of a multi-track cam-disc mounted between the chassis and auxiliary mounting base. Specifications 757,303, 770,544 and 801,176 also are referred to.
Patent GB-865863-A (GB)
Title: Stable emulsifier-free latices and method of preparation thereof
IPC: C08F2/22
Filed: 1957-09-02
Abstract: Stable emulsifier-free and alkali metal ion-free latices of polymers or copolymers are produced by polymerizing 100 parts of vinylidene monomers in water, containing at least 0,5% of monomer in solution, in the absence of emulsifiers and alkali metal ions and in the presence of 1 X 10-4 to 10 X 10-4 parts by weight of a Group VIII metal ion, of ammonium persulphate and of 0,5 to 3,0 weight parts of sulphur dioxide at most one half and at least 0,1 to 1 parts of the sulphur dioxide being present in the body of the reaction mixture very shortly after polymerization begins, and the remaining sulphur dioxide being added into the body of the reaction mixture during polymerization, said polymerization being conducted at an initial temperature of 10 DEG -30 DEG C. which is raised during reaction to a temperature not above 50 DEG C.  At the end of the reaction the temperature may be briefly raised to 65 DEG C. if desired.  Preferred monomer mixtures are those containing a conjugated diene, e.g. butadiene 1,3.  Many other monomers are mentioned, among them acrylonitrile, styrene, substituted styrenes, ethyl acrylate, methyl methacrylate, vinyl acetate, acrylic acid, acrylamide, methyl- and ethyl vinyl ether, methyl vinyl ketone, acrolein, vinyl chloride, vinylidene chloride, dichlordifluoroethylene, and vinyl pyrridine. Agitation should be carefully controlled during polymerization and the preferred method of agitation is described in detail.  Preferably the Group VIII metal ion is iron, e.g. derived from a water soluble ferrous or ferric salt such as ferrous ammonium sulphate.  The latices may be concentrated more easily if a small amount of non-ionic surface active agent is added to them.  Operation may be continuous or batch-wise.  In Example 1 soft water is charged to a reactor fitted with internal cooling coils and mixed with acrylonitrile and a tertiary C12 mercaptan.  The reactor is evacuated and butadiene-1,3 added.  A double marine agitator is started and the temperature adjusted to 20 DEG C.  Aqueous ammonium persulphate and ferrous ammonium sulphate are added, and one hour later part of the sulphur dioxide.  After another hour the temperature is raised to 30 DEG C., and then to 40 DEG  and 45 DEG C. with periodic additions of further SO2.  After 90% conversion of monomers (total reaction time, 22 hours), ammonium hydroxide is added and the mixture cooled. Alcoholic butylated hydroquinone is added to stop further reaction. Excess monomers are vented and an antioxidant added.  The latex is stable with particles of uniform size.  The other examples are similar.  The latices of the invention are useful for application to leather, paper, fabrics or glass or for making articles by the dipping of forms and coagulation of the latex on the form.  Reference has been directed by the Comptroller to Specification 830,931.