baber/WOPTO huggingface dataset:
Patent GB-980891-A (GB)
Title: Production of molecular sieve adsorbents from kaolin minerals
IPC: C01B39/02
Filed: 1961-01-13
Abstract: Zeolites A, X or Y (see below) are produced by an improved process wherein the major source of aluminium oxides for zeolites X and Y, and the major sources of both aluminium and silicon oxides for zeolite A is provided by inclusion in the aqueous reaction mixture of a reactive kaolin-type clay rendered amorphous to X-ray diffraction by calcining for a period of at least 45 minutes at 600 DEG  to 850 DEG  C., digesting said aqueous reaction mixture for at least two hours and thereafter thermally treating at elevated temperature and under at least autogenous pressure until the crystals form. Additional silicon oxide may be provided by the inclusion of reactive silica, i.e. a soluble silicate or colloidial silica.  Preferred digestion temperatures are in the range of 20 DEG  to 55 DEG  C. and crystallization temperatures from 75 DEG  to 120 DEG  C.  Between 0.1 to 5 moles per mole of alumina, of a soluble alkali metal sulphate, phosphate, fluoride or chloride may be added to the reactant mixture, e.g. as in an example by the neutralization of excess sodium hydroxide by an appropriate acid or by the actual addition of the salt.  A list of suitable kaolin-type minerals and their oxide compositions are provided.  The Specification also contains novel oxide ratios. The examples also contain comparative data on the effect of varying the digestion period, outside the scope of the invention, on the product purity and an example wherein the digestion and crystallization are effected at identical temperatures. Specifications referred to in respect of Zeolites A, X and Y are 777,232, 777,233, 909,266, 972,831.  Reference has been directed by the Comptroller to Specification 924,938.
Patent GB-302510-A (GB)
Title: Hobs for cutting spur gears and the like
IPC: B23F21/16
Filed: 1928-01-16
Abstract: 302,510. Olson, C. G. Jan. 16, 1928. Gear-cutting; milling-cutters. - A hob 10 for cutting spur gears and the like is provided with gashes 14 oblique to the hob thread and disposed so as to increase the sharpness of the cutting-edge of the leading side 16 of the teeth, and the teeth ere arranged to generate on a circle smaller than the pitch circle 30, Fig. 3, of the blank. The teeth are a,so undercut so as to increase the acutaness of the top cutting-edge 18. The pressure angle of the blank teeth is shown at a in Fig. 3. According to the invention, the inclination of the flanks of a hob tooth is less than the pressure angle of the gear to be cut and is equal to an angle #. The hob will thus generate on a circle 30<1> and the hob teeth are thinner at the base and thicker at the top than the teeth of an ordinary hob. The lead is also slightly shorter than that of the normal hob. In some cases, particularly for roughing out, doublethreaded hobs may be employed. This modification of the hob profile results in a better distribution of the work performed by the leading and leaving edges 16, 17 respectively, this distribution being indicated in Fig. 5. From this it is seen that the acute angled leading edge removes approximately 25 per cent of the metal while the obtuse-angled leaving edge 17 is only required to remove 15 per cent of the metal, the corresponding figures for ordinary hobs being 20 per cent and 30 per cent respectively.
Patent GB-1372057-A (GB)
Title: Welding of tubes to tube plates
IPC: F28F9/18
Filed: 1971-01-12
Abstract: 1372057 Welding by fusion ROBERT JENKINS & CO Ltd 22 Dec 1971 [12 Jan 1971] 1471/71 Heading B3R In non-consumable arc welding of a tube 10 to a tube plate 14, wherein the tube end is positioned so as to extend partly (as shown) or entirely through a bore 12 in the tube plate, the tube end is counterbored at 16 such that the tube wall thickness at the tube end extremity is less than said wall thickness at the plate surface through which the tube is positioned. The said extremity wall thickness is preferably between  and ¥ (e.g. 1/3) the original wall thickness. The eounterbore is cylindrical and flat bottomed. The counterboring may be effected prior to or after tube positioning, or finish counterboring of a partially bored out end may be effected with the tube in position. The electrode is rotated adjacent to or within the counterbored end of the tube. In making a heat exchanger comprising a plurality of tubes welded at opposite ends respectively to two plates, one end of each tube may be welded to one plate with or without the counterboring, and the other end of each tube is counterbored, or finished counterbored when positioned in the other plate prior to welding thereto.
Patent GB-395955-A (GB)
Title: Improvements in socks for boots and shoes
IPC: A43B7/02
Filed: 1933-01-17
Abstract: 395,955. Electrotherapeutic appliances. SAARE, W., 1, Berthastrasse, Leipsic, Germany. Jan. 17, 1933, No. 1555. [Class 81 (ii).] In galvanic socks for boots and shoes comprising two dissimilar metals one in contact with another, the metals are in the form of plates which are separately connected to the sock material and with a tongue on one plate engaging slots in the other, so that relative sliding movement is permitted. A plate a, Fig. 1, of copper may be detachably connected to a plate b of zinc in this manner to make the sock pliable, by threading a tongue c on one plate in slots d in the other. These plates may be connected by rivets to a sock of cork or the like or they may be built into an insole. The entire sock may be covered with a layer of material h, Fig. 5, and may be enclosed between layers i of waterproof material the edges of which extend beyond the plates and are maintained in upturned position, and the upper layer of which is perforated.
Patent GB-557156-A (GB)
Title: Improvements relating to a mechanism for producing intermittent rotary motion
IPC: C03B11/16
Filed: 1941-07-29
Abstract: 557,156. Glass manufacture. KINKER, C. C. July 29, 1941, No. 1582/43. Convention date, Aug. 2, 1940. Divided out of 557,064. [Class 56] [Also in Group XXIV] Mechanism for producing intermittent rotary motion adapted for operating glasswareforming and other machines, comprises a rotatably mounted driven element provided with cam-engaging parts spaced circumferentially thereof and a gear element co-axial therewith, a driving mechanism comprising a cam assembly and a segmental or mutilated pinion adapted periodically to mesh with the gear element. The cam assembly successively engaging the cam engaging parts and thereby serving to accelerate, decelerate and stop the driven element during continued rotation of the driving means. The tables 40, 41 to be rotated intermittently are geared together and are actuated from a driving spindle 20a which carries a toothed segment 43, adapted to mesh with a gear ring 42 on the table 40, and a cam assembly consisting of two cams 44, 45. The cam 44 is heart-shaped, and the cam 45 is offset and follows the contour of the adjacent part of cam 44. The track 46 between the cams receives one of a number, e.g. six, of rollers such as D<SP>2</SP> carried by the table 40. The driving mechanism rotates through 315 degrees to move the table through a 60 degrees stage, the remaining 45 degrees being the period during which the table is locked. The cam first actuates a roller to accelerate the table and then the segment 43 takes up the drive at a uniform velocity, after which the other part of the cam carries on the drive with a retardation until the locking position is reached in which two rollers bear on opposed concentric parts of the cam. The rollers and toothed gear may be in action together or, when the toothed gear is driving, the corresponding parts of the rollers may be cut away to render them inactive. The mechanism drives the tables without shock and obviates backlash.
Patent GB-373124-A (GB)
Title: Improvements in or relating to devices suitable for use in the conforming of shoe uppers to the shapes of lasts
IPC: A43D21/12
Filed: 1931-01-17
Abstract: 373,124. Boot-making m a c h i n e s. UNITED SHOE MACHINERY CORPORATION, 140, Federal Street, Boston, U.S.A.-- (Assignees of Pym, C. F. ; Beverly, Massachusetts, U.S.A.) Jan. 17, 1931, No. 1598. Convention date. Jan. 21, 1930. [Class 17 (i).] Lasting.-A device for holding a shoe upper in lasted position has a portion 10 engaging the upper margin and a portion 12 offset inwardly heightwise of the margin for use in securing the device to the shoe. The device is intended for use while cement or a thermo-plastic stiffener sets, and may be secured by tacks t passing into the shoe bottom not through the upper but within the region embraced by the edge of the margin of the upper. Depressions may be formed adjacent to the tack holes to receive and position the nozzle of a hand tacker. The device may be pressed against the shoe by toe-embracing wipers 20 of a bed-lasting machine such as that described in Specification 22630/08, [Class 17, Boots &c.], the upper being first wiped inwardly as usual, the wipers retracted and the device applied to the shoe, when the wipers are again advanced, closed in engagement with the device and also pressed towards the shoe bottom and the tacks t driven. When desired, the device may be removed by a tool inserted between the shoe bottom and the portion 12.
Patent GB-150605-A (GB)
Title: Improvements in means for heating carburetted air in internal combustion engines
IPC: F02M1/00
Filed: 1920-01-20
Abstract: 150,605. Warwick, C. E. Jan. 20, 1920. Vaporizers, external.-A resistance coil 10 is mounted inside the disk 3 of a throttle valve, the conductors 12 passing through the spindle 1, and the valve disk is bolted into a recess in the spindle.
Patent GB-1408571-A (GB)
Title: Arc working apparatus
IPC: H05H1/34
Filed: 1972-01-14
Abstract: 1408571 Gas shielded arc torch LUCAS ELECTRICAL CO Ltd 27 Dec 1972 [14 Jan 1972] 1835/72 Heading H5H A gas shielded are torch has a body 11, a main electrode 13 carried by the body, a hollow endpiece 18, a conductive sleeve 21 with a frustoconical end 22 detachably received in a corresponding frustoconical end of the end-piece and defining a passage in which the main electrode 13 extends and through which gas flows in use, the sleeve being a secondary electrode so that an arc can be struck between the sleeve and the main electrode, the sleeve being clamped in position at the frustoconical end against the body by the end-piece and the end-piece being releasably secured to the body by a single screwthreaded collar 23. The body 11 is elongate and includes an insulating portion 15 with a flange 16 which engages collar 23 to retain the end assembly against the body. Sleeve 21 is replaceable when worn by release of the collar 23 and sliding out the old collar from the end-piece 18.
Patent GB-489177-A (GB)
Title: Improvements in or relating to the gaseous cementation of steel
IPC: C23C8/22
Filed: 1937-01-21
Abstract: In the production of gas for the cementation of steel described in the parent Specification, the starting material consists of a mixture of coal distillation gas (coke oven or town gas) and poor gas from a blast furnace or a gas producer operating on air or a mixture of coal distillation gas and air.  The hydrocarbon added may consist of industrial gas rich in ethane, particularly residual gas from petroleum refineries.
Patent GB-492948-A (GB)
Title: Improvements in ventilating devices for water-closets
IPC: E03D9/052
Filed: 1938-01-20
Abstract: 492,948. Ventilating closets. BIANCELLI, L. Jan. 20, 1938, No. 1955. Convention date, Jan. 20, 1937. [Class 26] A ventilating device for the pan of a water closet comprises an exhausting device connected to a hole in the flush pipe, a water jet operating the device to remove gases from the pan and deliver them to a discharge pipe opening into the pipe leading from pan to sewer, and a liquid sealed valve normally closing the discharge pipe but adapted to be opened when means are operated to supply water to the jet. A substantially cylindrical casing is connected by an aperture to the flush pipe 5 and is provided with a turbine 1 driven by water from a jet 4, connected to a pressure supply and controlled by a cock coaxial with the turbine, so as to exhaust gases by centrifugal action from the pipe 5 and to force them through a discharge pipe 6, and the casing is formed at its bottom as a tank 8 into which the pipe 6 extends. A pivoted up-valve 7 is operated by lever 9 and link 10 coupled to the cock, so that, when the cock is closed, the valve co-operates with the water in the tank 8 to close the discharge pipe.
Patent GB-304725-A (GB)
Title: Improvements in door stops
IPC: E05F5/04
Filed: 1929-01-21
Abstract: 304,725. England, E. C., and Mc- Donald, K. M. Jan. 25, 1928, [Convention date]. Door stops. - When a door 2 is slammed in closing a striker 11 engages a projection 7 of a resilient buffer 6 that is pivotally mounted at 4 on the jamb 1, the member 6 being thereby swung from the vertical position into the position shown to engage the door. The striker slides over the top 7 of the buffer member if the door is closed gently. The member 6 is preferably positioned so that its outer lateral edge projects slightly from the jamb 1; when the door is closed the member 6 is compressed and prevents rattling.
Patent GB-896135-A (GB)
Title: Adhesive strip material for use when painting
IPC: C09J7/30
Filed: 1960-01-20
Abstract: 896,135. Laminates. GORDON, C. B. Sept. 8, 1960 [Jan. 20, 1960], No. 2032/60. Drawings to Specification. Class 140. Masking strips of thin plywood or veneer, for use in painting surfaces are coated with a rubber-based or other tacky adhesive and assembled in pairs with their adhesive faces in contact. The strips may be marked with transverse lines to facilitate accurate cutting at right-angles to their length.
Patent GB-328228-A (GB)
Title: Improvements in or relating to switch mechanisms for use in telephone or like systems
IPC: H01H63/04
Filed: 1929-01-21
Abstract: 328,228. Automatic Telephone Manufacturing Co., Ltd., and Smith, S. R. Jan. 21, 1929. Automatic exchange selectors.-The wipers 3 of a Strowger selector make contact between individual contacts and contact bars common to a plurality of positions. The wipers are fitted with projections engaging, when the wipers are off normal, with conductors 15 mounted by springs 13 on the selector framework. Wiring to the conductors is facilitated by tags 18. In the home position the conductors 15 coincide with the grooves 16 and the springs 13 are supported by members 14 thus providing no additional frictional resistance to the vertical movement of the shaft.
Patent GB-997819-A (GB)
Title: Polyolefine compositions for the manufacture of shaped articles
IPC: C08L23/08
Filed: 1962-01-19
Abstract: A polyolefine composition comprises (a) a copolymer of ethylene of 70-80% crystallinity and of density 0.93-0.97 comprising 99.7-90% ethylene and 0.3-10% of one or more C3- 18 homologues of ethylene and (b) an (partially) amorphous copolymer of higher content of a C3- 8 homologue of ethylene than copolymer (a) and comprising 90-10% of ethylene and 10-90% of one or more C3- 18 homologues of ethylene. The ethylene homologues may be propylene or butene-1.  Copolymer (b) may contain 30-100% of amorphous constituents that are soluble in n-heptane and up to 70% of crystalline constituents that are insoluble, and may comprise 1-50% of the composition. The composition may be formed into sheets which may be granulated. Specifications 514,687 and 685,381 are referred to.
Patent GB-634969-A (GB)
Title: Improvements in and relating to reduction gears
IPC: F16H57/021
Filed: 1948-01-23
Abstract: 634,969. Gear casing. CAMPBELL, J., and PATERSON, T. Jan. 23, 1948, No. 2151. [Class 80 (i)] A gear casing and cover plate, a, a<1>, for a reduction gear having driving and driven gears g<1>, c<1>, and an intermediate gear p are formed to enable the driving shaft g to be mounted in any position relative to the driven shaft c so that the casing may be adapted for gearing having different distances between the driving and driven shafts. The plate and casing have corresponding extended thickened parts l, j, m, in which may be machined a hole for the bearing f<1> and a hole k to accommodate the clutch h contained in the housing e bolted on to the casing a<1>. The thickened parts l, arcuate about the axis of the shaft c, allow suitable positioning of the bearings of the intermediate wheel p. The bearing b is in thickened positions d. The bearings are retained by discs q and rings q<1>.
Patent GB-221144-A (GB)
Title: Improvements relating to school desks
IPC: A47B41/02
Filed: 1924-01-28
Abstract: 221,144. Bennet, G. Jan. 28, 1924. Desk slopes.-A school desk has a desk slope supporting frame 1 provided with a shelf and desk front. The slope 4 is pivoted at 5 substantially midway of its breadth so that it may move from a horizontal to a vertical position in such a way that the upper surface rests against the desk front 3 and its lower surface is clear of the shelf 2. A guard 6 of multiple-ply wood may be provided for the front. Reference has been directed by the Comptroller to Specifications 18208/93, 13830/02 and 8946/05.
Patent GB-878359-A (GB)
Title: Control system
IPC: F23N5/26
Filed: 1960-01-21
Abstract: 878,359. Thermal switches. CONTROLS CO. OF AMERICA. Jan. 21, 1960 [July 20, 1959], No. 2181/60. Class 38 (5). [Also in Groups XI and XIII] A thermal switch comprises a blade 50 having a barrel spring 64 located between the free end of a flexible tongue 62 on the blade and a contact bearing end of the blade. A pin 58 is attached to the flexible tongue 62 and is biased by a spring 60 into contact at its lower end with an actuating arm 44 attached to a stainless-steel thermal strip 40 attached at its other end to a shield extending from the side of a housing 46 containing the switch. The thermal strip 40 is heated by the flame of a gas burner and expands to move the actuating arm 44 downwards. The tongue 62 is thus moved over-centre, out of contact with a lower contact 54 and engages an upper contact 56. The lower and upper contacts 54, 56 are mounted on leaf springs and the blade momentarily engages both contacts in transferring from one to the other. In a modification, Figs. 9, 11, a switch blade 70 is secured at one end to a bracket 73 and flexed upward slightly by a contact post 77 forming therewith a normally closed switch 32. A bimetal arm 72 is pivoted on a bracket 82 and is held thereon by a spring 79. One end of the bimetal arm is biased by a spring 83 to engage an adjusting screw and the other end has a contact 75 adapted to engage a contact 76 on the switch blade 70. An electric heater 74 is wrapped on and insulated from the bi-metal arm and is energized through the normally closed switch 32. When the bi-metal arm warps it first closes the contacts 75, 76 and later opens the switch 32 to de-energize the heater 74. It then cools and again energizes the heater 74.
Patent GB-311839-A (GB)
Title: Improvements in or relating to rock abrading machines for tunnelling or shaft boring
IPC: E21D9/10
Filed: 1928-01-23
Abstract: 311,839. Francois Cementation Co., Ltd., Degenhardt, W. R., Fraine, A. F. de, Bicknell, R. A. W., and Bicknell, A. Jan. 23, 1928. Digging-apparatus. - In a rockabrading machine for tunnelling and shaft-sinking, of the kind comprising a rotary member provided with loosely-pivoted tools which, during rotation of the member, move outwards into operative position under centrifugal force, the rotary member is carried by a tool arm operated so as to cause the tool to move in a spiral path over the face of the tunnel or shaft. Pivot pins B, which may have rotatable sleeves B<1>, are carried by spaced discs C and ring-shaped cutters A, with integral teeth, are mounted on the pivot pins and have an internal diameter substantially larger than that of the pivot pins so as to be movable outwardly under centrifugal force. In modified forms, the ring-shaped cutters have renewable radial teeth or have plain peripheries of wedge-shape or rounded section. Radial slots or elongated holes may replace the circular bore of the cutters and more than one cutter may be mounted on each pivot pin, cutters on adjacent pins being staggered. The discs Care rotatably supported by a frame D carrying a motor which drives the discs through ropes. The frame D is fixed to an inner shaft F which passes through an arm F', the arm F<1> being universally pivoted and controlled as in Specification 297,137 to move the cutters in a spiral path to cover the entire face of the tunnel &c. A ball f<3>, by which the spiral movement is communicated to the device, has peripheral grooves engaged by forks on the shaft F and a part f<4> of the gear which effects the spiral movement, whereby the frame D is rotated so that the axis of the cutter head always lies radially of the tunnel. Current is supplied to the motor through collecting rings e. Specification 238,262 also is referred to.
Patent GB-694936-A (GB)
Title: Agitator for washing machine
IPC: D06F17/10
Filed: 1952-01-28
Abstract: 694,936. Washing-machines. EMALJEVERKET AKTIESELSKAP. Jan. 28, 1952 [Aug. 14, 1951], No. 2245/52. Class 138 (ii). A continuously rotating agitator located close to the bottom, side or lid of a washing machine container, consists of a boss 12 attached to a driving shaft 11 and provided with a number of wings 13 each comprising a relatively thin blade extending substantially parallel to the adjacent surface of the container, while the rear edge of the blade with respect to the direction of rotation merges into a substantially radially extending thicker rib 14 projecting from the blade. The forward edge 15 of the wing 13 is curved as shown and has a small portion 16 extending into a correspondingly shaped recess 17 in the next wing. In the example illustrated in Figs. 1 and 1a (not shown), the recesses 17 are eliminated, the curved edge merging into the rib edge of the next wing a short distance outwardly from the boss 12. In Figs. 3 and 3a (not shown), the wings are sloped slightly so that a part of each blade lies under the next wing, and the edges of the blades are shaped so that the wings together form a circle concentric with the driving shaft.
Patent GB-607037-A (GB)
Title: Improvements in or relating to gas blast electric circuit breakers
IPC: H01H33/16
Filed: 1946-01-23
Abstract: 607,037. Gas-blast switches. AKT.-GES. BROWN, BOVERI, & CIE. Jan. 23, 1946, No. 2274. Convention date, Jan. 27, 1945. [Class 38 (v)] In a gas-blast circuit-breaker an anti-restrike resistance e is introduced by a spark-gap having an electrode d2 slidable in a guide g against a spring, so as automatically to increase the spark-over voltage to a ring-electrode d1, during interruption of the arc, in response to an increase in pressure in an exhaust-chamber f, and finally to restore the gap when interruption is complete. The electrode d2 is connected to a fixed nozzle a1 having an annular contact-part a2 slidable against a spring b on an extension thereof. In Fig. 2 (not shown), the spark-gap is fixed, but its spark-over voltage increases when a spring- loaded throttle-element closes, causing an increased pressure in the exhaust-chamber.