baber/WOPTO huggingface dataset:
Patent GB-261760-A (GB)
Title: Improvements relating to internal combustion engines
IPC: F02B63/00
Filed: 1926-11-17
Abstract: 261,760. Fornaca, G. Nov. 19, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Two- and four-stroke -cycle engines; driving- gear.-Balancing of the inertia forces is effected by placing (1) at opposite ends of the engine shaft a pump and a compressor for a two-stroke Diesel engine, (2) a compressor at each end of the shaft for a four-stroke Diesel engine or using a twostage compressor for such an engine, the two stages being separated one at each end of the shaft. The pumps and compressors are of the piston type and the two parts are arranged with cranks at 180‹. The invention is applicable to two-stroke-cycle engines having one, two, four, five, 'or six cylinders and to four-stroke-cycle engines having one, two, or three cylinders.
Patent GB-1385569-A (GB)
Title: Device for treating flowable media
IPC: B01F5/06
Filed: 1972-06-21
Abstract: 1385569 Mixing in conduits H CLASEN 21 June 1972 29103/72 Heading B1C A static homogenizer comprises a tube 1 containing a plurality of helical members 7, 8 each having at least one plane extension 4 having a slit 9 so that in regions 6 where adjacent members interengage there are four flow channels. The members may have plane extensions at both ends and interengage over the length thereof. As shown adjacent members may of opposite hand, be twisted through 180 and engage at right-angles. The upstream end of each member may have a knife edge (10, Figs. 3a, 3b not shown) and the engaging portions of adjacent members may be held by a ring (11) having tapered edges (12) and forcing a flow construction. The device may discharge tangentially into an inverted funnelshaped outlet tube, see Figs. 1 and 2, not shown.
Patent GB-1242012-A (GB)
Title: Steroid compounds with cardiac activity
IPC: B01J31/04
Filed: 1969-06-09
Abstract: 1,242,012. Epoxybutadienolides. LAEVOSAN-GES. CHEM. PHARM. INDUSTRIE FRANCK & DR. FREUDL. 9 June, 1969 [10 June, 1968], No. 29134/69. Heading C2U. The invention comprises compounds of formula wherein R<SP>1</SP> is hydrogen or a radical derived by loss of the hemiacetal hydroxyl group from a monosaccharide, disaccharide or trisaccharide, which saccharide may be esterified with an organic acid, etherified, or condensed with a carbonyl compound, R<SP>2</SP> and R<SP>4</SP> are each hydrogen or a hydroxyl group which may be esterified with an organic acid or etherified with an alcohol, and R<SP>3</SP> is methyl, formyl, hydroxymethyl, alkoxymethyl or acyloxymethyl; and their preparation from the corresponding #<SP>4</SP>-compounds by reaction with a peracid or with molecular oxygen in the presence of a catalyst. Exemplified products are derived from scillaren A, glucoscillaren A, prosoillaridin A and scilliglaucosidin.
Patent GB-427411-A (GB)
Title: Improvements in machines for the separation of metals of different melting points
IPC: C22B7/00
Filed: 1933-10-21
Abstract: 427,411. Centrifugal separation of metals of different melting points. REES, T. A., Hollywood, Cantley Lane, Doncaster, Yorkshire. Oct. 21, 1933, No. 29152. [Classes 23 and 82 (i)] Metals of different melting-points, e.g. mixed borings of white metal and bronze, are separated by feeding the metal pieces into a revolving strume or sieve in which they are formed by centrifugal force into a belt or band on the inner surface of the peripheral walls of the sieve, and causing burner flames to impinge on the inner surface of the belt or band over substantially the whole depth thereof. The apparatus shown comprises a pillar A which carries a table B on which is secured a burner box X having annular channels X<1>, X2 for air and gas respectively and passages 4 extending from the channel X<1> through the channel X<2> to the outside of the burner box where the gas mixture is ignited. Surrounding the table B is a centrifugal pan or basket comprising a bowl portion E having a sleeve E<2> which is supported on ball bearings D<2> and provided with roller bearings D, D<1>, and a rim E<1> joined to the bowl portion by bars F. Inside the bars F is an assemblage of small bars G having slits between them which preferably increase in width from the inside to the outside. The lower ends of the bars G rest in a groove in the bowl E and the upper ends are held by a cover H secured to the rim E<1>. The metal pieces are fed into the pan by a hopper I which directs them towards the wall formed by the bars G and the centrifugal force causes them to form into a belt on the inner surface of the wall, the thickness of the belt being preferably limited by a spreader J, Fig. 2. The particles of lower melting point are melted by the flames issuing from the passages 4 and are thrown through the slits in the wall and caught by a surrounding casing K preferably provided with projections L. When this metal has been separated, a member M, Fig. 2, is swung unto the path of the belt of metal which remains in contact with the wall of the pan and deflects it away from the wall and through an opening N in the table B into the lower part O of the bowl E from which it is discharged by centrifugal force through the openings P. The movement of the member M may be controlled automatically in timed relation with the movement of a conveyer feeding material into the hopper I.
Patent GB-716855-A (GB)
Title: Sound track reproducing
IPC: G03B31/00
Filed: 1952-11-18
Abstract: 716,855. Combined sound and picture apparatus. NATIONAL FILM BOARD. Nov. 18, 1952 [April 24, 1952], No. 29158/52. Class 40 (2). In a combined sound and picture apparatus employing a film having a plurality of sound tracks, means are provided to reproduce one only of the tracks. The film mayhave more than one track for the purpose of reproducing in different languages, or for reproducing alternative commentaries for different levels of audience, or for omitting or including music as a background to speech or sound effects. In a magnetic reproducing apparatus, the desired track may be selected by moving a narrow cored transducer to coincide with the appropriate transverse position with respect to the film, but with optical sound tracks it is necessary to mask the unwanted tracks. The Specification describes means for masking optical tracks by means of an arm 4 pivoted at 5 and having masking fingers 7, 8. The arm 4 may be moved to one or other of two extreme positions by means of push-buttons 9, 10. When it is desired to reproduce both tracks at once the lever 4 may be moved to an intermediate position by means of a block 12 operated by a push-button 11. The lever and push-button assembly is mounted on a plate 1 which is secured to the casing 20 of the machine in such a position that the masking fingers 7, 8 intercept the light from a source 21 directed towards the film 24 drawn over a drum 27. The film 24 overlaps the drum 27, and a reflector (not shown) is located in the space between the drum 27 and the casing 20 for reflecting the beam through a slit 29 in the casing 20 to the photo-electric system. Specification 716,854 is referred to.
Patent GB-719440-A (GB)
Title: Method of making steel according to the basic blast refining process
IPC: C21C7/00
Filed: 1952-11-19
Abstract: After the completion of blowing in a basic Bessemer process the metal and slag are poured into a collecting vessel and the slag then separated from the metal.  The collecting vessel may be a ladle fitted with an overflow pipe and may be tiltable.  Molten dioxidizing agents and/or alloying agents may be added in the ladle through a funnel which penetrates below the slag layer, some of which may still be present, or may be added through a funnel to metal flowing from the ladle to a mould.
Patent GB-938790-A (GB)
Title: Method and device for finishing gear teeth by electro-erosion
IPC: B23F19/00
Filed: 1962-07-30
Abstract: 938,790. Electro erosion. STAL LAVAL TURBIN A.B. July 30, 1962 [Oct. 14, 1961], No. 29240/62. Class 83 (4). Gear teeth on a wheel 4 are finished by electro-erosion using a gear electrode 5 whose teeth are dressed continually or periodically by a dressing tool 13. The gear electrode 5 is made of copper, brass or graphite and mounted for rotation on a shaft 6 driven through changespeed gearing 7 by a synchronous motor 8. The unit 7, 8 is adjustable manually or by a motor 10 in the direction 9 for varying the spark gap; alternatively the workpiece gear 3, which is driven through change-speed gearing 2 by a synchronous motor 1, may be adjusted or both may be adjusted. A liquid dielectric is used. During or after erosion the teeth of the gear electrode 5 are dressed by a cutting or pressing tool 13 mounted for movement in the direction 14 manually or by a motor 15. Several electrode gears may be used for machining several workpieces simultaneously.
Patent GB-713467-A (GB)
Title: Storage tanks for liquids
IPC: B65D90/38
Filed: 1951-12-14
Abstract: 713,467. Tanks. HAMMOND IRON WORKS. Dec. 14, 1951 [June 13, 1951], No. 29310/51. Class 69 (1) A cylindrical tank 10 having a closed top 14 for storing vaporizable liquids comprises an inlet and outlet for the liquid (not shown) and a gasimpervious flexible diaphragm 11 secured to an inwardly extending flange 15 intermediate to top and bottom of the tank, to the flange having an inwardly bulged outline forming a platform 24 into which is fitted a manhole 25 and cover. The platform is formed by two concave portions 02 and 03 (Fig. 4) and a convex portion 01, the radius R of the portion O1 being greater than the radii R1, R2 of the portions 02, 03 and the perimeter length L1 of the bulge being equal to the length of the corresponding arc P. A sampling and gauging pipe 27 and a pressure equalizing pipe 28 are welded to both the top 14 of the tank and the platform 24 so that they serve as rigid supports for the platform and are disposed one at either side of the manhole. As shown in Fig. 6, the edge E of the diaphragm is held against a skirt 16 on the flange 15 by a strip member 21 and spring-loaded bolts 22.
Patent GB-1064916-A (GB)
Title: Fluid-pressure punches
IPC: F15C1/00
Filed: 1965-07-12
Abstract: 1,064,916. Fluid-pressure punches. SPERRY RAND CORPORATION. July 12, 1965 [July 23, 1964], No. 29412/65. Heading B4B. A device for punching a hole in a record medium 13, Fig. 1, comprises a die 5 having an aperture 19, a bed-plate 1 having a fluid chamber 9 provided with an opening 11, a signal source 7 for supplying fluid under pressure to the chamber 9 and shaping means 3 for directing the fluid through the opening 11 and against the material 13 with a velocity that varies over the width of the aperture 19, the fluid particles of highest velocity being directed towards the periphery of the aperture. Means 31 are provided for raising and lowering the die in synchronism with the movement of the material 13 into and out of punching position. The signal source may comprise a pure fluid amplifier. Each punch may be provided with its own signal source or a plurality of punches may be simultaneously actuated from a single signal source. In a modification, Fig. 5, a fluid amplifier is disposed within bed-plate 1<SP>1</SP>, the amplifier comprising input channels 33, 35 and 37 connected to a compressor 46 and to signal sources 48 and 51, the sources 48 and 51 respectively providing a fluid signal each time a punching operation is to be terminated or initiated. The amplifier has output channels 39 and 41, the chamber 91 being formed by the downstream portion of channel 39 which has an annular opening 11<SP>1</SP>. A jet-shaping body 52 is bonded by the channels 39 and 41. The aperture 19 in the die 5 may be made smaller than the opening 11<SP>1</SP>.
Patent GB-376585-A (GB)
Title: Apparatus for removing moisture from and for rolling turfed surfaces and such like
IPC: E01H1/10
Filed: 1931-10-23
Abstract: 376,585. Land rollers ; removing moisture from turf &c. HIGHFIELD, F. G., Clanver, Green Lane, Timperley, Cheshire. Oct. 23, 1931, No. 29422. Divided on 371,524. [Class 6 (i).] Apparatus for rolling and removing moisture from cricket grounds, tennis courts, floors, &c. comprises a roller having an absorbent jacket, supports for a moisture expressing roller and a water receiving vessel, and reversible and adjustable pushing shafts or handles, a trolly being provided for transporting the apparatus. The absorbent jacket A may be secured on the roller a<1> by wire stitching, and the axle b<1> of the roller a<1> may support an internal ballast tank. The axle is mounted in ball or other bearings in bracket arms d<1> slotted to receive the bearing blocks e<1> of the expressing roller f<1>, the blocks el being acted upon by adjustable springs g. The roller f<1> may be plain or fluted or covered with rubber &c. Longitudinal bars d<3> are attached to the arms d<1> and to struts d<2> projecting from them. They carry a removable water-receiving vessel c<2> having a plug or outlet cl, and are provided with dependent feet d<5>. The shafts or handles h may be turned about the axle b<1> to the other side of the roller a<1>, being secured in either position by a spring- controlled bar engaging in notches j<1>, j<2>. To adjust the position of the roller f<1> and to facilitate the use of a deeper vessel c<2> the handles h may be adjusted so as to make an angle with the arms d<1>, being secured in position by a second spring-controlled bar j<3> engaging notches j<4>, j<5>. In a modification, there are two pairs of arms d<1>, two expressing rollers f<1>, and two tanks c<2>. The transporting trolly consists of wheels or drums q, Fig. 8, mounted on a cranked axle q<1> adapted to be engaged by the notched ends of the struts d<2>. According to the Provisional Specification a pump may be provided for emptying the water-receiving vessel, which vessel may be made from a bent longitudinal duct with two shaped end-pieces fixed by rivets. Specification 371,524 is referred to in the Provisional Specification.
Patent GB-835395-A (GB)
Title: Improvements in caps for containers
IPC: B65D51/00
Filed: 1958-09-15
Abstract: 835,395. Container closures. ASTRA APOTHEKARNES KEMISKA FABRIKER A.B. Sept. 15, 1958 [Sept. 20, 1957], No. 29465/58. Class 125(3). A sealing cap for a container filled with a injection liquid comprises a member 2 of plastic provided with a recess 7 to receive a rubber disc 8 the member 2 being retained at the mouth 4 of the container by a metal apertured cover 1. The disc 8 which is compressed into the recess 7 forms a self-sealing part through which a cannula may be thrust.
Patent GB-667670-A (GB)
Title: Improvements in or relating to gas-filled discharge lamps, more particularly fluorescent lamps
IPC: H01J61/067
Filed: 1948-11-15
Abstract: 667,670. Discharge lamps. LEHMANN, F. Nov. 15, 1948 [Nov. 27, 1947], No. 29690/48. Drawings to Specification. Class 39 (i). In a low-pressure gas-filled arc discharge lamp for operation on low voltages, more particularly a fluorescent lamp, the two electrodes each comprise an activated element adapted to be heated by the discharge and to form a cathode, and an element adapted to remain cold during the discharge and to form an anode, both elements being connected to a single contact plug. The cathode element may be an activated wire helix connected to two lead-in wires and the anode element a metal hood connected to a third lead-in wire, or the cathode element may be a spirally wound wire connected to a single lead-in wire. Alternatively, the anode may be in the form of wire wings connected to the ends of a helical cathode. The construction enables the lamp to be supported in two single-point sockets, or in the case of a " circular " lamp in one two-point socket. A suitable filling comprises argon and mercury vapour at a pressure of about 1 mm. of mercury.
Patent GB-629240-A (GB)
Title: Improvements in writing instruments
IPC: B43K27/12
Filed: 1945-11-07
Abstract: 629,240. Writing appliances. MARTIN H. G. Nov. 7, 1945, No. 29630. [Class 146 (iii)] A writing appliance comprises a casing 1 with a writing instrument at each end, one at least of which is a reservoir pen 2 displaceable axially of the casing for projection to a writing position, the other instrument 3 constituting or forming part of push-button means for projecting the pen. As shown, both instruments are ball-point pens, and the instrument 3 also has writing and non-writing positions. The unit 2, Fig. 2, is normally held retracted by a spring 14 and its inner end abuts against the head of a bolt 18 screwed into the end of a member 17 slidable in the casing 1. A ferrule 26 screwed into the casing limits the inward movement of the unit 2, and the bolt 18 permits of adjustment of the overall length of the assembly. A catch 21 attached to a spring 20 carried by the member 17 snaps into a hole 22 in the casing to hold the pen in projected position and can be released by a knob 24 on the pocket clip 23. The pen 3 is inserted in the member 17 and is held frictionally by a constriction 27. It is provided with a butt 16 forming the push-button, and with ribs 29 which expand the constriction 27 as the pen is inserted. The pen 3 is reversed when to be used. Differently coloured inks may be employed in the two pens. In a modified construction, Fig. 10, the pen 3 is attached directly to the pen 2 and is threaded externally to engage an internally-screwed sleeve 30 capable of free axial and rotary movement in a fixed ferrule 32 in the casing. The outer end of the sleeve 30 is enlarged to form the pushbutton for the pen 2 and is rotated to expose the point of the pen 3. In the latter event, the enlarged part may prevent projection of the pen 2 by engagement with the end of the ferrule 32, but the dimensions may be arranged so that both pens can be projected at the same time. Specifications 584,974 and 629,226 are referred to.
Patent GB-709619-A (GB)
Title: Improvements in or relating to securing a steel or other metallic part to another part of hard and difficult to work material, such as a shaft to a turbine wheel
IPC: F01D5/02
Filed: 1952-11-24
Abstract: 709,619. Securing wheels on shafts. METROCUTANIT, Ltd. Nov. 24, 1952 [Dec. 14, 1951], No. 29669/52. Class 80 (2) [Also in Group XXII] A member of brittle material, such' as a turbine wheel 2, is secured to another member such as a steel shaft I by forming a socket or sockets 3a in the contiguous faces of the wheel and shaft inserting a heated dowel '4 an each socket and upsetting the dowel so that it firmly contacts the wall of the socket. The latter may be barrel-shaped or waisted. The member 2 is preferably made by sintering a mixture of hard powdered materials, and the part sockets are formed therein before sintering.
Patent GB-449066-A (GB)
Title: Improvements in method of making organic esters of cellulose
IPC: C08B3/22
Filed: 1935-10-28
Abstract: A mixture comprising an unripened organic ester of cellulose in solution in a solvent consisting substantially of an aliphatic acid but containing water sufficient for ripening is subjected to distillation so as simultaneously to remove aliphatic acid and ripen the cellulose ester.  Esters of high clarity and stability are obtained and lead to the production of high tenacity filaments, and films.  Cellulose acetate, propionate, and butyrate are specified. The amount of water added to the esterification mixture is sufficient to hydrolyse remaining anhydride and ripen the cellulose ester, e.g. to acetone solubility.  The proportion of water added may be 20--30 per cent based on the weight of cellulose.  The proportion of aliphatic acid may be 7--10 times the weight of cellulose. Distillation may be effected at reduced pressure.  Air or other gas may be injected to assist distillation.  The cellulose ester may be precipitated by addition of water or other non-solvent.  At the end of the esterification, acid catalyst may be reduced by addition of carbonate, bicarbonate, or acetate.  Neutralization of mineral acid may be effected progressively during distillation.  The aliphatic acid may or may not be that corresponding to the anhydride.  Mixtures of catalysts such as sulphuric and hydrochloric acids, zinc chloride, and methyl chloride may be used.  A further quantity of aliphatic acid may be added to the esterification mixture just prior to distillation in order to reduce the proportion of catalyst.  In an example, cotton linters are acetylated at room temperature with a mixture of acetic anhydride, glacial acetic acid and sulphuric acid. After acetylation is complete water is added and the mixture is distilled under reduced pressure, sodium acetate being added in small quantity as the acetic acid distils, to reduce the proportion of sulphuric acid.  Before all the acetic acid has been removed, the distillation is stopped and the cellulose acetate is precipitated by adding water to the mixture.  The Specification as open to inspection under Sect. 91 specifies also the application of the process to the manufacture of cellulose formate.  This subject-matter does not appear in the Specification as accepted.
Patent GB-599665-A (GB)
Title: Improvements in or relating to flight indicators for aircraft
IPC: G01C19/44
Filed: 1943-11-09
Abstract: 599,665. Gyroscopic apparatus; magnetic compasses. SPERRY GYROSCOPE CO., Inc. Nov. 9, 1943, No. 29692/47. Convention date, May 27, 1942. Divided out of 599,607. Drawings to Specification. [Classes 97 (ii) and 97 (iii)] A flight indicator for aircraft comprises a gyrovertical in which the rotor case is supported in the gimbal frame by arms or brackets extending from the case and having an annular clearance between the case and its bearings and a directionally-controlled side reading compass card mounted in the annular clearance for rotation about a vertical axis located on the rotor case so that it may be read in a stabilized plane through the point of intersection of the gimbal axes. An embodiment is described which is substantially identical with that described in Specification 599,607. Specification 574,848 also is referred to.
Patent GB-602661-A (GB)
Title: Improvements in or relating to gramophone pick-ups
IPC: H04R11/08
Filed: 1945-11-08
Abstract: 602,661. Gramophone pick-ups. JOHNSON, A. H., and WILKINSON. G. H. Nnv. 8, 1945, No. 29766. [Class 40 (iv)] In a gramophone pick-up comprising a magnet 3, a pick-up coil 15 and an armature 10, the magnet and the armature supporting means are clamped to opposite sides of a wall 2 of a casing for the apparatus. The armature supporting means is a thin plate bolted to the casing and slotted at the middle to render it resilient and thus to permit motion of the armature which is attached at this part. The magnet is supported by its polepieces 4 which are bolted to the casing. Damping material 13 such as rubber or plastic is provided.
Patent GB-202260-A (GB)
Title: Improvements in internal combustion engines relating to means for adjusting the instant of explosion in the cycle
IPC: F02P5/02
Filed: 1922-10-31
Abstract: 202,260. Carrad, E. S. P. Aug. 9, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Shaft couplings.-Means for adjusting the ignition timing in internal-combustion engines comprises a worm 7 and worm-wheel 12 mounted respectively on the shafts 1, 11. The flange 2 is recessed and bored for the reception of the worm 7 and its spindle 8, the protruding ends of the latter being shaped for engagement by a spanner. A spring 14 bearing on one of the ends 8 prevents unintentional movement of the worm. This device may be combined with such members as a spurwheel or flexible coupling.