baber/WOPTO huggingface dataset:
Patent DK-23698-A (DK)
Inventor: FILHOL STUART JULIAN
IPC: A61C13/30
Filed: 1998-02-19
Abstract: A dental post 5 has a lower portion 4 that is fitted within a pre-prepared dental root canal 2, 3 and an upper portion 6 to which a dental crown 8 can be fitted. The root canal is provided with a plurality of projections 26 that extend downwardly and inwardly and the post, which is preferably tapered, and the lower portion of the post has a plurality of notches 16 that are preferably independent grooves that face upwardly. The post can then be secured substantially without screwing, by means of cement in the annulus 7 between the post and the canal. Preferably the lower portion of the post is tapered and has grooves or other notches that open upwardly and outwardly and the upper portion has grooves that open downwardly. The pitch of the grooves 16 in the lower portion is generally not more than 0.5mm. The invention also includes a dental reamer that can be used to form a profiled cavity in a tooth and that has an elongated cutting head (30, 31, 32) having a plurality of cutting elements (34) that can be used for cutting into the wall of the canal to define the projections 26.
Patent DK-83282-A (DK)
Inventor: DEMARINIS R M
IPC: C07D221/10
Filed: 1982-02-25
Abstract: Octahydrobenzo[f]quinoline compounds of formula (I):-in which:R is hydrogen or lower alkyl having one to three carbon atoms;X is methoxy, methylthio or ethylthio; and its pharmaceutically acceptable acid addition salts thereof are disclosed. These compounds are centrally acting alpha<sub>1</sub> agonists.
Patent EG-17938-A (EG)
Title: Method and apparatus for the manufacture of composite articles and articles made thereby
IPC: B29C45/03
Filed: 1986-07-06
Granted: 1991-08-30
Abstract: A plastics pipe or pipe coupling is made by injection moulding the plastics pipe or coupling body 1, injection moulding at least one sealing ring 3 separately but susbstantially simultaneously, and bringing the body and sealing ring together directly after the moulding while these components are still in a hot as-moulded state, so that a direct thermal bond is formed between them. Preferably, the respective moulds are opened but the components are not stripped but are brought together for bonding while still in position on respective mould members 15, 19. This eliminates intermediate handling and ensures that the moulded components remain clean and of accurate shape and dimension as they are brought together. Moulding apparatus comprises respective injection moulding cavities for the body and sealing ring, and a reversible support for carrying the sealing ring out of its mould and into contact with the moulded body.
Patent EG-17716-A (EG)
Title: Method and apparatus for liquifying fusible material such as glass
IPC: C03B5/44
Filed: 1986-12-28
Granted: 1991-11-30
Abstract: In a method and apparatus for liquefying material such as glass batch, primary thermal protection for the vessel is provided by a lining (21) of the batch material, with secondary protection being provided by forced cooling of a minor portion of the vessel (10) in regions (41) and at times when the primary protection (21) is irregular.
Patent FR-1454907-A (FR)
Inventor: IHREBORN CARL ALLAN GERHARD
IPC: A44B1/24
Filed: 1965-11-26
Granted: 1966-10-07
Abstract: 1,091,950. Buttons. C. A. G. IHREBORN and C. I. R. HEDENBERG. Nov. 26, 1965 [Nov. 26, 1964], No. 50461/65. Heading A3H. A button comprises a cup 1, with a rim portion 2 and an attachment loop 4, and a dished plate 5, with an outwardly turned rim portion 6 and a central aperture for an attachment loop 4. The edge of a piece of material 8 covering the cup 1 is gripped between the rim portion 2 and the rim portion 6.
Patent GB-1029261-A (GB)
Title: Production of sodium trimetaphosphate and of polyphosphate products containing the same
IPC: C01B25/445
Filed: 1963-01-01
Abstract: <PICT:1029261/C1/1> An inorganic polyphosphate product containing at least 25% by weight of sodium trimetaphosphate is produced by calcining at above 300 DEG  C., preferably 350 DEG  C., but below the melting point of said polyphosphate product, a molecularly hydrated alkali metal phosphate feed material, at least 90% by weight of said alkali metal being sodium, there being present during said calcining in contact with said feed material a completely molecularly dehydrated, water-soluble alkali metal polyphosphate, preferably in amount of at least 1% by weight of the feed material, which acts as an accelerator.  The accelerator may be a crystalline water-soluble alkali metal polyphosphate having at least two phosphorus atoms (joined in a P-P linkage) in the molecule, and containing substantially no water of constitution, e.g. sodium tripolyphosphate, sodium tri- and tetrametaphosphate and potassium tripolyphosphate. Non-crystalline materials which can be converted into one of the above crystalline polyphosphates on heating below 450 DEG  C. may also be used, e.g. sodium hexametaphosphate, Graham's salt and Kurrol's salt.  The accelerator should be blended with the phosphatic feed material before the temperature of the resulting mixture is raised above 300 DEG  C.  At least one of the inorganic phosphate salts must contain water of constitution.  The calcining may be carried out in the calcining apparatus shown in Fig. 1.  Phosphate feed material enters calciner 13 via pipe 11 and passes to hot bed 17 of sodium trimetaphosphate through holes 19. Evaporation of water, followed by rotation of the calciner causes a solid mixture to pass from upper section 21 at 110-350 DEG  C. to lower section 25 through dividing ring 23.  Hot gases 28, which cause conversion in section 25, at a temperature of 350 DEG  to 620 DEG  C. flow from 27 countercurrently with respect to the flow of solids.  The desired product 33 flows to 35, a portion of which is withdrawn through 37, the remainder being recycled to section 21 via pipes 39, 41 and 49. In Fig. 2 (not shown), the two sections of the calciner are maintained separately and simultaneously.
Patent GB-101300-A (GB)
Title: Improvements in or relating to Lamps for Aircraft, Automobiles and the like.
Inventor: CODD MORTIMER ARTHUR
IPC: F21S8/10
Filed: 1916-01-04
Abstract: 101,300. Codd, M. A. Jan. 4, 1916. Supporting.-A pair of lamps for aeroplanes, motor vehicles, &c. are pivotally mounted by means of lugs j on a bracket m, n clamped to an upright strut h on the aeroplane &c.
Patent GB-405787-A (GB)
Title: Improvements in or relating to hydraulic transmission mechanism
IPC: F16H3/72
Filed: 1933-01-03
Abstract: 405,787. Hydraulic transmission of power. GARDNER, A. F., Synott Street, Werribee, Victoria, Australia. Jan. 3, 1933, No. 149. Convention date, Nov. 7, 1932. [A Specification was laid open to inspection under Sect. 91 of the Acts, July 8, 1933.] [Class 69 (ii).] Hydraulic power transmission apparatus comprises a number of gearwheel pumps 11 concentrically arranged in a casing 10 on the driven shaft and geared to a sunwheel 13 on the driving shaft. Each pump casing has an inlet 21 and outlet 24 connected to a valve cylinder 25 connected to the interior of the casing 10 by its open inner end and a port 26. Valve plungers 27 are simultaneously operated to control the pump inlets or outlets, or leave both fully open. The driven shaft is provided with reversing gearing, which may comprise clutches.
Patent GB-508949-A (GB)
Title: Improved means for connecting aerials to radio receivers
Filed: 1938-01-04
Abstract: 508,949. Cables. DISNEY, A. L., and BELLING & LEE, Ltd. Jan. 4, 1938, No. 182. [Class 36] [Also in Group XL] A cable 15, 11, 16 for connecting an aerial to a radio receiver is provided with a common overall waterproof covering 12 of rubber, gutta-percha, &c. which surrounds the three sections 15, 11, 16 and matching transformers 14 therebetween. The covering may be of greater diameter at the places 13 where the transformers occur or of greater thickness therebetween. The line may be provided throughout with a braided wire screen and the assembly may be provided with integrally moulded lugs, terminals, &c.
Patent GB-1114644-A (GB)
Title: Sputtering apparatus
IPC: H01L23/29
Filed: 1966-01-04
Abstract: A dielectric material, e.g. quartz, aluminium oxide, mullite, boron nitride and various glasses, in the form of a target T carried by an electrode 22 is sputtered on to substrates of e.g. silicon mounted in holders 80 on the bottom of an anode 18 by applying a radio frequency voltage between the electrodes 18, 22. An anti-sputtering shield 26 is arranged around the electrode 22 at a distance which allows sputtering to take place and at most is equal to the thickness of the Croobes dark space.  The cathode may be cooled by a circulating fluid, and the substrates may be either heated or cooled.  Magnets 90 provide a magnetic field in the inter-electrode space. The sputtering atmosphere may be argon.  <PICT:1114644/C6-C7/1>
Patent GB-863454-A (GB)
Title: Wet material reduction mill
IPC: B02C17/04
Filed: 1960-01-04
Abstract: 863,454. Wet grinding mills. WESTON, D. Jan. 4, 1960 [Jan. 28, 1959], No. 261/60. Class 59 A wet combined crushing and grinding mill comprises a rotatable drum having end walls 11, 12 and a peripheral wall 13, the ratio of the interior diameter of the drum to the interior length thereof being at least 2:1, a plurality of spaced crusher bars 20 to engage the largest particles of feed, means 32 for feeding material and means 33 for feeding water and oversize return to the mill, grate discharge means 34 and annular keying liners 23, 24 mounted on the walls 11, 12, the liners collectively penetrating into the mill interior from about 20% to about 80% of the effective mill length and defining a keying zone which is about 30% to about 75% of the effetcive mill volume. The grate discharge 34 is formed of a conical inner part 35 and a grate 36 which comprises a solid inner portion surrounded by a grate structure 38, the whole being supported within the part 35 by bracer elements 39 which also function as lifters assisting discharge. The discharged material may be deposited into a classifier box and fed into a helical classifier; alternatively, the discharged material may pass directly to a screen. The discharge may be assisted by means of an air stream, air or steam jets or various mechanical arrangements. Alternative forms of keying liner are described and shown. In a modification, Fig. 5, the mill is provided with a false inner wall 50 having grate openings 51, lifters 52 disposed between the wall 50 and the wall 11 for carrying the discharged material radially inwards where it is deflected by the conical surface 53 of the central portion of the wall 50 and permitted to flow over the trunnion liner member 54 for discharge. In another modification, Fig. 7, the parts 50 to 52 are the same as in Fig. 5 but in this case the inner extremity of the space between the wall 50 and wall 11 is sealed off by the flange 53 whereas the peripheral wall 13 is provided with grates 54 permitting the discharged material to pass directly outwardly for collection in a trough 55. Specifications 632,532, 696,137 and U.S.A. Specification 2,094,842 are referred.
Patent GB-147241-A (GB)
Title: Improvements in and relating to computing apparatus for use in gunnery
IPC: F41G11/00
Filed: 1919-01-06
Abstract: 147,241. Roach, E. Jan. 6, 1919. Gunnery calculators.-Gunnery sighting and fuze-length corrections are computed by means of a series of drums some of which, viz. 9-14, are set by external knobs in accordance with the prevailing atmospheric and other conditions and effect by gearing the necessary rotations of other drums 6, 7, 8 exhibiting through a slit 3 the corrected range and quadrant elevation, deflexion and fuze length. All the drums are arranged coaxially in a casing 1 provided with a wind-angle indicator 4 consisting of a rotary graduated dial within a fixed graduated scale. The drums 9-14 are marked respectively in terms of muzzle velocity, temperature of the charge, barometric reading, atmospheric temperature, angle of sight, and strength of wind. The last-named is set out on ten drums according to the angles of direction of the wind with respect to the line of fire. The reading-drums 6, 7 and 8 are grouped in thousands of yards of range, are flanked by a drum 5 showing map ranges up to 1000 yards, and are connected with the setting-drums by means of gearing which includes pin-wheels and permits each series of reading-drums to be rotated independently from the various setting- drums. When the data for a particular calculation have been set up, the reading-drums 6 and 8 and the map-range drum 5 can be rotated together but at different speeds to bring the map range concerned and the corrections required into view through the reading slot. In order to allow for different charges, explosives, type of shell, &c., reading-slots may be provided at varying distances from the normal one, or differently-coloured figures, may be marked on the reading-drums.
Patent GB-1304670-A (GB)
IPC: B31C1/08
Filed: 1972-01-05
Abstract: 1304670 Removing bags from mandrels SCHWEIZERISCHE INDUSTRIE-GESELLSCHAFT 5 Jan 1972 [6 Jan 1971] 415/72 Heading B5D A bag 2 is removed from a mandrel 1 around which it has been formed by an endless belt 17 which is pressed against the bag 2 by rollers 24 or slide elements. The rollers 24 are vertically reciprocable by means of an actuating rod 35 and project through openings 37 in angle irons 21, 22 over which the upper run 17 1  of the belt 17 slides. The mandrel 1 comprises a body 3 and a hinged jaw 4 which is biased by a spring 6 to a position where a stop shoulder 8 abuts the head 9 of a pin 7 but which is pivoted inwardly at the removal station by a cam 12 so that rollers 23 project through openings 27 in the jaws 4 to contact the bag 2. The body 3 of the mandrel has an aperture 40 through which compressed air can be blown to facilitate removal of the bag. After removal, the bag 2 passes between the belt 17 and a second belt 41 and is tilted at the end of run 17 1  by a rocker 50 behind the belt 41 into the receiving seat 53 of a pivoted raising arm 54 which delivers the bag in an upright condition to a filling conveyer. The belts 17 and 41 may be single belts or may comprise a plurality of narrow belts.
Patent GB-682910-A (GB)
Title: Improvements in pulse counters using electric discharge devices
IPC: H03K25/00
Filed: 1951-01-05
Abstract: 682,910. Pulse circuits. RADIO CORPORATION OF AMERICA. Jan. 5, 1951 [Jan. 7, 1950], No. 450/51. Class 40 (vi). In a pulse counter or frequency divider in which the pulses to be counted build up a charge on a storage capacitor until after a predetermined number of input pulses the capacitor is discharged through a discharge device, a bias voltage is applied to the discharge device which varies in accordance with the amplitude of the input pulses so that the count is rendered less dependent on variations of the amplitude of the input pulses. The Figure shows a divider of the "cup and bucket"  type in which the output of a sinusoidal oscillator 10 is shaped in valve 12 to give negative pulses at the anode which are applied via capacitor 14 and the right-hand section of the double diode valve 16 to progressively increase the charge on the storage capacitor 18. The capacitor 14 discharges via the left-hand section of diode 16 in between the incoming pulses. The charge on capacitor 18 is progressively increased in a negative direction until at a point dependent on its bias voltage the thyratron 20 fires and capacitor 18 is discharged via its anode-cathode discharge path to produce an output pulse at its anode 22. In order to prevent variations in the amplitude of the input pulses from varying the count, the bias of thyratron 20 is varied proportionally to the amplitude of the input pulses by applying the input pulses through the network 28, 30 to the rectifier 32 to produce a D.C. bias voltage which is tapped off from potentiometer 38 and applied to the control grid of the thyratron 20.
Patent GB-1385674-A (GB)
Title: Electroslag refining
IPC: B22D23/10
Filed: 1971-01-05
Abstract: 1385674 Electroslag refining BRITISH STEEL CORP 24 March 1972 [5 Jan 1971] 460/71 Heading B3F In an electroslag refining process the slag 14 is melted in a mould having at least a part of its base portion made of carbon by electrically heating said portion, e.g. by using an induction coil 12. Once the slag has been melted the power supply to the coil 12 is switched off and the slag maintained in its molten condition in the usual way. The mould may consist of a lower graphite portion 6 and an upper steel, copper or graphite portion 8 insulated from the lower portion by an asbestos ring 10. It rests on a graphite block 2 and a metal base-plate 4 and may be water cooled. In a modification resistance heating is used to heat the lower mould portion 6 and thus melt the slag 14.
Patent GB-905888-A (GB)
Title: Improvements in and relating to the electro-deposition gallium and indium
IPC: H01L21/288
Filed: 1959-01-06
Abstract: 905,888. Plating with indium and gallium electrolytically. PHILCO CORPORATION. Jan. 6, 1959 [Jan. 6. 1958], No. 501/59. Class 41. An electrolytic bath for plating with indium and gallium simultaneously as an alloy, is made by heating a mixture of an indium halide, a gallium halide and a salt to enhance conductivity, with glycerine as a solvent. Preferably glycerine is heated to 135 to 145 C., the indium trichloride dissolved therein, then ammonium chlorogallate, and finally ammonium chloride or other alkali metal salt. The mixture is then brought to a temperature of 158 to 162  C., for a short time and then filtered. The electrolyte is used at a temperature near the boiling-point of glycerine. It is stated that the partially polymerized glycerine medium slows down metal ion migration, whereby an equilibrium is established at the cathode favouring the deposition of gallium although the deposition potential is higher than that of indium. The electrolyte may be used to plate transistor materials or a metal, nickel alloy or platinumruthenium wire with an alloy of In/Ga containing 0.1 to 1 % of gallium. The wire conductor is preferably first de-greased with trichlorethylene and then heated in hydrogen at 750  C. A final treatment with a boiling solution of ammonium chloride in HC1 may be applied. Specifications 826,063 and 847,628 are referred to.
Patent GB-136675-A (GB)
Title: Improved Cinematograph Projector Shutter and Light Filter.
IPC: G03B9/10
Filed: 1919-01-08
Abstract: 136,675. Wyndham & Co., J. O., and Alexander, E. R. Jan. 8, 1919. Kinematograph apparatus.-The masking and flicker blades 1, 2, 3 of a rotary shutter are fitted with colour filters comprising a textile material, such as shot silk, in which two intercrossing sets of threads are dyed with transparent colours, bronze and blue-green or " peacock blue " respectively. The material is placed between sheets of mica and mounted in a closed frame to make each device dust-proof. According to the Provisional Specification, the masking-blade may be lightly frosted.
Patent GB-551545-A (GB)
Title: Improvements in or relating to hypodermic and like syringes
IPC: A61M5/315
Filed: 1942-01-13
Abstract: 551,545. Syringes. EVERETT, S. J. Jan. 13, 1942, No. 530. [Class 102 (ii)] [Also in Group VI] A syringe is furnished with a resilient ring 6 secured in a slot 5 of the barrel so as to engage the plunger 4 and prevent it from moving too freely. The ring is inserted in the slot 5 after pinching the upturned ends 7 slightly. A modified form has a plain split ring with no upturned ends and the plunger has a slight shoulder for forcing it past the ring. In another form equidistant ridges on the reduced part of the plunger are forced in turn past the ring.
Patent GB-290320-A (GB)
Title: Improvements in spragging devices for motor vehicles
IPC: F16D41/12
Filed: 1927-01-08
Abstract: 290,320. Wilson, G. Jan. 8, 1927. Guarding against wrong movement. - Means for automatically preventing running back, of the kind in which a one-wav clutch mechanism is controlled by the gear lever, comprises mechanism in which a lost-motion connection is provided between the gear lever and clutch so that when the gear lever has been in reverse the clutch becomes inoperative and remains so until the gear lever has entered another gear position. In the construction shown a ratchet wheel G mounted on or connected to the gear-box shaft is adapted to be engaged by two pawls A, F connected together by a link E so as to be simultaneously engaged with or disconnected from the ratchet wheel. The pawls are controlled by sliding notched plates 1, 2 operated by the gear-changing mechanism in such a manner that the pawls can only engage the ratchet wheel when the gears are in neutral or, say, in the first forward gear, and are also held inoperative when the gears are in neutral immediately after the reverse gear has been used. In the neutral position shown in Fig.. 3 the notch in the plate 2, and also in the plate 1 (not shown in this Figure), is in line with a spring arm B of the pawl A which is thus free to engage the ratchet wheel. The plate 2 is connected by a. link K<2> to a forked lever I operated by a pin M on an arm, L fixed on the gear-lever shaft H<2>. When the reverse gear is engaged the pin M acts on the arm R<1> of the fork and moves the plate 2 to disengage the pawls A, F. When the gears are next brought to neutral the pin M moves freely between the arms R<1>, R<2> of the fork and does not return the plate 2 to its normal or neutral position until further movement of the gear-lever shaft H<2> for the first forward speed causes the pin M to act on the arm R<2>. The plate 1 is acted upon by an arm slidably-keyed on the gear-lever shaft, so that whenever the gearlever is in neutral the notch is opposite the pawl arm B. A spring 0 is provided between the arm Band the pawl to enable the plates 1, 2 to depress the arm B when the pawl is temporarily locked in position by the pressure of the ratchet teeth. In a modification the plates 1, 2 have notches engaged directly by the gear lever, and the pawls are kept out of engagement whenever the first forward speed is engaged. In this modification the tooth-engaging surfaces of the pawls are arcshaped, having their centres at the pawl pivots, and the ratchet teeth are correspondingly shaped..
Patent GB-727083-A (GB)
Title: Improvements relating to pedals for cycles
Inventor: BOULSTRIDGE THOMAS JAMES
IPC: B62M3/08
Filed: 1953-01-08
Abstract: 727,083. Cycle pedals. PHILLIPS & CO., Ltd., J. A. Jan. 7, 1954 [Jan. 8, 1953], No. 577/53. Class 136(2). [Also in Group XXII] In a pedal for cycles of the kind comprising tread parts 12 supported on rods 11 extending between and secured to the end plates 8, 9, one or both end plates are permanently secured by welding to the adjacent ends of the rods 11. As shown in Figs. 1 and 3, the rods 11 are welded to the inner end plate 8 which is plain. The outer plate 9 is pierced for the passage of screw threaded ends on the rods 11 which are provided with clamping nuts 13.