baber/WOPTO huggingface dataset:
Patent GB-511900-A (GB)
Title: Improvements in and relating to firearms
IPC: F41A19/31
Filed: 1938-10-07
Abstract: 511,900. Rifles. PIKE, R. Oct. 7, 1938, No. 29120. [Class 119] A firing mechanism, described particularly with reference to a bolt-action rifle, has means for adjusting the trigger pull, the trigger 40 being pivoted at 42 and having a worm-screw 46 receiving a loop of a spring 48, so that by adjustment of the screw the tension of the spring may be varied. The screw has a groove 50, with notches 51 with which a spring-pressed pin 52 engages thereby giving a clicking indication' when the screw 46 is adjusted. The trigger has a hook 34 which passes through a member 30 and engages on the upper side thereof, the overlap of the hook being adjusted by a triggerpositioning screw 56. The member 30 has a step 29 which normally supports a screw extension 21 pivoted in the screw 11 at 23 and urged into engagement with the step 29 by a spring 24. The screw 11 is pivoted at 13 and influenced by a spring 15 so that an inclined surface 17 may coact with a corresponding surface on the cocking member 19. When the trigger is pulled to release the member 30, the thrust of the cocking member depresses the sear 11 and rocks the member 30 by means of the sear extension 21, the end of the extension slipping from the step 29 in this movement, whereupon the springs reset the trigger gear.
Patent GB-1097861-A (GB)
Title: Improvements in or relating to the manufacture of flat glass
IPC: C03B18/18
Filed: 1963-07-23
Abstract: In the float process dross is removed from the surface of the molten metal bath by providing recesses in the tank wall to which access from the bath is controlled by a gate 58 of carbon, graphite or silicon carbide in the channel leading to each recess. Each recess has one or two vertically reciprocable carbon plungers 44.  When the gate is down metal flows over the top of the gate into the recess. When the gate is raised, but still partially immersed in the metal in the channel, metal flows underneath the gate back to the bath, dross being retained in the recess by the gate.  The <PICT:1097861/C1/1> movements of the gate and plungers are appropriately synchronized. The plungers may be replaced by "diving bells" immersed in the metal in the recesses, compressed gas being admitted to and removed from the bells in synchronism with the gate movements.  Dross is periodically removed from the recesses mechanically or electrolytically; removal may be facilitated by a sill (Fig. 8, not shown) across the recess near the discharge opening 42.  An electro-pneumatic control and power system for operating the plungers and gate is described.
Patent GB-162237-A (GB)
Title: Improvements in and relating to piston packing ring
IPC: F16J9/16
Filed: 1920-10-18
Abstract: 162,237. Brooks, T. W. Oct. 18, 1920. Piston packing.-Packing for the piston of a steam or internal-combustion engine or pump comprises two split rings 4, each of which is formed with an integral cover-piece 7 for the joint of the other ring. Each ring is formed with eccentric inner and outer peripheries, and the inner face 9 of the cover-piece 7 is parallel to a tangent to the inner periphery, leaving a ledge for supporting the ends 10 of the other ring.
Patent GB-629458-A (GB)
Title: Hand taps for cutting screw threads
IPC: B23G5/06
Filed: 1947-08-29
Abstract: 629,458. Taps. HASTINGS, J. W. Aug. 29, 1947, No. 29514. [Class 83 (iii)] A tap is formed without a shank and is normally rotated by a wrench 5 having a central cut-out that is a sliding fit on the tap. For removing a broken tap, a round knurled hole 2 down the centre is provided, in which one knurled handle 6 of the wrench can be inserted, the other handle being unscrewed and fitted in a tapped hole 7. The tap has a guide nose 3 with two semi-circular grooves.
Patent GB-177133-A (GB)
Title: Improvements in apparatus for preventing a maximum speed of machinery from being exceeded
IPC: B66B5/04
Filed: 1921-11-07
Abstract: 177,133. Siemens - Schuckertwerke Ges. March 18, 1921, [Convention date]. Gearing for stopping machinery. - Comprises means for controlling engines or machines by the time-factor involved in the tripping of successive control-actuating members and their automatic restoration after tripping. Thus a member c, Fig. 3, forming part of, or moving with any engine, machine, or apparatus, may trip cocks or electric switches a, b in succession. At normal speeds the switch a is restored automatically to its original position before the switch b is tripped, but at excessive speeds both switches a and b may be momentarily in the tripped position at the same time. This simultaneous tripping results in a controlling action being set up, for example, mechanical or electrical brakes may be applied momentarily or permanently, the circuits may be varied to brake the motor, or engine stop-gear may be set in motion. Numerous applications of the invention are described. Fig. 1 shows. the application to hydraulic, pneumatic, or electric systems in which the control is set up by the interruption of the flow of,fluid or current in a pipe or conductor. The simultaneous closing of the cocks or opening of the switches a, b upon being tripped by the member c interrupts the flow through both branches of the main pipe or conductor and sets the controlling means in motion. The member c, shown in Fig. 3, may be a fixed abutment on a railway track to open the cocks of a pressure brake system on a moving train to exhaust, and thus apply the brakes. Fig. 5 shows the invention applied to momentary or permanent braking of lifts. When the cage e moves at such a speed that both electric contacts a, b are broken at the same time, the magnet f is de-energized and the brake applied momentarily. The braking of both contacts a, b may open a third non-returnable contact (not shown) so that the brake will be applied permanently. Instead of the switch members being actuated directly, they may be operated through linkages that can be adjusted to vary the time between successive trippings. By arranging the two switches to have different restoring times, the apparatus can be used to function at different speeds on forward and reverse running. A number of these pairs of control-actuating members may be arranged in series, each pair coacting to form a control-actuating means as previously described. Reference is made also to the variation of the degree of control exercised, the variation being effected by the time of action of controlling- means which run during the time both switches are displaced simultaneously.
Patent GB-966752-A (GB)
Title: Improvements in and relating to screw rotor compressors or vacuum pumps
IPC: F04C29/00
Filed: 1960-08-29
Abstract: 966,752. Intermeshing-screw compressors and pumps. SVENSKA ROTOR MASKINER A.B. Aug. 29, 1960 [Sept. 8, 1959], No. 29696/60. Heading F1F. A two or more stage intermeshing- screw compressor or pump, described as a two-stage vacuum pump, comprises a housing having first and second stage working spaces, 10, 12, Fig. 1, in which are mounted a one piece two-stage female rotor 16, Fig. 2, and a one-piece two-stage male rotor 14. Each rotor is made with its profile taken in a plane transverse to the rotor axis, its diameter and its lead angle for each stage substantially the same. The axial lengths of the two stages may also be substantially the same, but preferably the length of the second stage is 1À2 times the length of the first stage. In the wall separating. the working spaces through which the shaft portions of the rotors pass seals 30 are fitted. A liquid, e.g., water in steam applications and lubricating oil in the case of the vacuum casting of steel, may be introduced into the working spaces to decrease leakage and improve cooling. It is stated that the volumetric efficiency of pumps according to the invention is improved compared with previous pumps. Overall pressure ratios of 75-100 to 1 are said to be obtainable with ratios of 8À7-10 to 1 in each stage and a final vacuum of 7À5-10 mm. of Hg. Specifications 676,839 and 851,262 are referred to.
Patent GB-1424639-A (GB)
Title: Friction clutches
IPC: F16D13/75
Filed: 1974-07-04
Abstract: 1424639 Friction clutches LIPE-ROLLWAY CORP 4 July 1974 [24 Sept 1973] 29714/74 Heading F2C An automatic wear adjuster for a friction clutch which adjusts the axial distance between radial release levers 12 and a clutch release thrust bearing 16 comprises a sleeve 14 fast with the inner race of the bearing 16, a sleeve 21 screwed on to the sleeve 14 and carrying circumferentially spaced lugs 22 which engage the release levers 12 and pawl and ratchet adjusting means which, when wear occurs, rotate the sleeve 14 relative to the sleeve 31 to increase the distance between the bearing 16 and release levers 12. The pawl and ratchet adjusting means comprise a ring 24 freely rotatable on the sleeve 14 and carrying circumferentially spaced pawls 30 which are urged by springs 35 into engagement with ratchet teeth 28 on a ring 25 keyed at 27 to the sleeve 14. The ring 24 is prevented from rotating relative to a clutch cover 37 by arms 36 carrying pins 38 which engage recesses 40 in the cover. During clutch disengaging rightward movement of the bearing 16 which acts through the sleeves 14, 21 on the clutch release levers 12, the rings 24, 25 are also moved axially with the bearing 16 and sleeve 14. During leftward clutch engaging movement of the bearing 16 and sleeve 14 the rings 24, 25 move with the bearing 16 and sleeve 14 until the arms 36 of the ring 24 abut the clutch cover 37 whereafter, if wear has occurred, further leftward movement of the bearing 16, sleeve 14 and ring 25 causes the pawls 30 to rotate about their pivots and thus rotate the ring 25 and sleeve 14 about the clutch axis. Rotation of the sleeve 14 relative to the sleeve 21 increases the distance between the lugs 22 and bearing 16 to compensate for the wear which has occurred.
Patent GB-255292-A (GB)
Title: Improved apparatus for propelling ships by power derived from the surrounding water
IPC: B63H19/02
Filed: 1925-10-20
Abstract: 255,292. Bean, T. R., and Taudevin, R. E. Oct. 20, 1925. Wave energy, utilizing.-Turbines enclosed in open-ended vertical cylinders are oscillated by the up and down motion of a ship and the power is transmitted to a propeller shaft or auxiliary machinery. A turbine A in a cylinder L is mounted on a shaft F carrying a bevel wheel B which drives pinions C which are free-wheel mounted in opposite directions on a shaft G which transmits power through gearing J to the shaft H of the propeller K. The blades of the turbine may be carried by a cylinder N to the end of which the bevel wheel B is also secured. In an alternative construction, the two free wheel pinions may be mounted on the turbine shaft to gear at opposite diameters with a fixed bevel on the shaft G. Power may be taken off this shaft for generating electricity which is utilized for auxiliary services or stored for propelling the ship in calm weather; also lathes and other machinery may be driven by belts or gears from the shaft. An auxiliary prime mover is provided for driving the propeller when the turbines or electric drive is inoperative.
Patent GB-1377736-A (GB)
Title: Antiinflammatory alkylaryl and alkenylaryl compounds
IPC: A61K31/085
Filed: 1971-06-25
Abstract: 1377736 Ring-substituted alpha-methylstyrene and cumene derivatives ELI LILLY & CO 25 June 1971 [29 March 1971] 29838/71 Heading C2C [Also in Divisions A5 and C5] Compounds of formula Ar-R wherein Ar is 3-phenylthiophenyl, 3-chloro-4-allyloxyphenyl, 2 - phenyl - 5 - pyridyl, 4 - (2<SP>1</SP> - pyridyl)- phenyl, 4 - (3 - fluorophenyl)phenyl or 5- phenyl - 2 - thienyl, and R is isopropyl or isopropenyl (of which 2 compounds are claimed in Specification 1,362,773), may be prepared by the following reactions In Example 8, 1-(4-cumenyl)propanol is prepared by reacting 4-cumenylmagnesium bromide with EtCHO.
Patent GB-226216-A (GB)
Title: Circuit arrangements employing thermionic valves for the production of alternating currents
IPC: H02M7/44
Filed: 1924-12-12
Abstract: 226,216. British Thomson-Houston Co., Ltd., (Assignees of Prince, D. C.). Dec. 14, 1923, [Convention date]. Thermionic generators of the " push-pull " type comprise an inductance 6 connected to the anodes 4 with an intermediate point 7 connected to the continuous current supply 8 through an inductive winding 17. The inductance 6 is coupled to an inductance 9 connected to the grids 5 and connected at an intermediate point 10 to the cathodes 3 through an inductive winding 18 magnetioally coupled to the winding 17. The windings 17, 18, in addition to being magnetically coupled, may be coupled by a capacity 19. The oscillation frequency is determined by condenser 14 in shunt to the inductance 6. The Specifioation gives curves showing the relations between the various currents and voltages of the system.
Patent GB-815704-A (GB)
Title: Improvements in or relating to the printing of pile fabrics
IPC: B41F15/08
Filed: 1957-09-25
Abstract: 815,704. Printing pile fabrics. D. S. T. PATTERN & ENGINEERING CO., and SMITH, E. Feb. 28, 1958 [Sept. 25, 1957], No. 30038/57. Class 100(2) An apparatus for printing pile fabrics, especially tufted fabrics, comprises a hollow roller A having an attached impervious covering C, cut away to a depth at least equal to the length of the pile, so as to leave relief portions forming the pattern to be printed, means for feeding dye from the interior of the rotating roller to successive parts of the roller periphery, internally or externally of the relief portions, and means for holding the pile face of the fabric in contact with the relief portions, so that the fabric is continuously advanced by rotation of the roller A. As shown, carpet or other fabric I is fed between the roller A and an endless wire mesh band H mounted on rollers F and G. The roller A comprises a steel tube B carrying the cover C which may be of ebonite or a synthetic resin, e.g. polyvinyl chloride. The cover C has apertures J representing parts of the pattern to be printed, the apertures being surrounded by walls L. The roller A is rotated by supporting rollers D and E. Ducts M drilled in the tube B co-operate successively during rotation of the roller with a longitudinal slot N in the base of a dye reservoir O extending axially of the roller, dye being gravity or force-fed to the reservoir. The parts of the pile to be printed project into the apertures J, the surrounding area being accommodated in recessed portions K of the roller cover C to prevent flattening the pile. Thus, the application of dye is confined to the pile entering the apertures J, any excess dye being withdrawn by a suction box Q within the roller adjacent the reservoir O. For multi-colour printing a separate roller A is provided for each colour. If it is required to print light coloured areas upon a darker background, the fabric is first printed by a roller similar to the roller A, but having ducts leading to the recessed portions K instead of the walls L and then printed by a roller A having a pattern that will register with the areas left unprinted after the first printing. Alternatively, the fabric may be dyed overall before printing by one more rollers A. According to the Provisional Specification, the band H is arranged above roller A, the reservoir O being at the top instead of the bottom of the roller.
Patent GB-377521-A (GB)
Title: Improvements in coin freed lock or latch mechanism
IPC: G07F17/12
Filed: 1931-11-03
Abstract: 377,521. Coin-freed locks. PARKER, WINDER, & ACHURCH, Ltd, and BATES, W. E., Broad Street, Birmingham. Nov. 3, 1931, No. 30386. [Class 27.] Money-boxes.-The coin-chamber 1 of a coin-freed lock is provided with a circular or other cornerless opening and a cover therefor fitting flush with the casing, the cover having a strengthening wall 5 carrying a projection 6 which is passed through a small gap 3 in a shoulder 2 surrounding the opening. The projection 6 and the bolt 8 of a lock 7 carried by the cover extend across the edge of the opening. This edge is thickened by an internal rim 4 having a gap opposite the gap 3 in the shoulder 2. The lock 7 may be placed within the casing adjacent the opening, the bolt when shot engaging a loop on the cover. Two or more projections 6 may be provided.
Patent GB-1513694-A (GB)
Title: Dryer for dispersed materials
IPC: F26B17/10
Filed: 1976-07-21
Abstract: 1513694 Drying apparatus L M KOCHETON V P OSINSKY B S SAZHIN E A CHUVPILO and S M SIROKO 21 July 1976 30456/76 Heading F4G  An apparatus for drying dispersed materials, e.g. polymerics, salts, fertilizers, comestibles, comprises a cylindrical chamber 1 having an inlet 2 for hot air, an inlet 4 for the material, and outlets 11 at each end 10 of the chamber for air and material. The inlet 2 leads to a passage 7 formed between the exterior wall 3 of the chamber and a member 6, most of the air travelling round the passage to a tangential inlet at its far end, louvres 8 controlling passage of a minor portion of the air directly to the chamber. The outlets 11 lead to spiral conduits connected to ducts 12 for exit of the hot air, and pipes 13 for exit of the dried material.
Patent GB-505494-A (GB)
Title: Improvements relating to prepayment meters
IPC: G07F15/08
Filed: 1937-11-06
Abstract: 505,494. Prepayment mechanism for meters. UNITED GAS INDUSTRIES, Ltd., SMITH, E. W., CHRISTIAN, A. J., and CHARLES, A. Nov. 6, 1937, No. 30511. [Class 27] In a prepayment meter charging for the commodity supplied according to a sequence of tariffs, the change of disposition of the parts involved in making a change of tariff causes a member to be moved to obstruct the removal or replacement of the cash box or some other part of the meter that has to be removed during the periodic visits of an inspector, thereby ensuring that the meter is reset to apply the sequence of tariffs. In the application to the tariff mechanism described in Specification 486,498, the change-gear lever g, Fig. 1, by which the quadrant g<6> actuating the change-gear cradle h is moved, is connected by a link 2 to an arm 5 pivoted at 4. During the successive, automatic changes of tariff, the lever g is moved down and causes the arm 5 to move down into the cash box 3. When the cash box is pulled out at the periodical cash collection, a cut away portion at the back of the cash box moves the arm 5 slightly upward, the arm returning to prevent replacement of the cash box, until the lever g is moved to its upper position and the cradle h reset to charge the high tariff: If the arm 5 is inclined in the opposite direction, the cash box cannot be pulled out until the changegear is reset. The link 2 may be connected to the lever g by a pin-and-slot connection 6, 7, Fig. 3, allowing the arm 5 to rise idly when the cash box is pulled out.
Patent GB-1275920-A (GB)
Title: A cylinder head seal
IPC: F02F11/00
Filed: 1969-06-17
Abstract: 1275920 Joint making packing REINZ DICHTUNGS GmbH 17 June 1969 [28 June 1968] 30524/69 Heading F2B A cylinder head gasket comprises a sealing ring 7, a U-section member 2 surrounding the inner periphery of the ring 7 and an insert ring 3 of a material harder than that of the ring 7 located between the ring 7 and an arm of the member 2, the inner periphery 4 of the insert, ring 3 being spaced from the radially outer surface of the radially innermost portion 5 of the member 2. The insert ring has centring projections 6.
Patent GB-852542-A (GB)
Title: Improvements in or relating to a method of connecting glass parts to one another
IPC: H01J9/50
Filed: 1957-09-30
Abstract: 852,542. Cathode-ray tubes. PHILIPS ELECTRICAL INDUSTRIES Ltd. Sept. 30, 1957 [Oct. 3, 1956], No. 30539/57. Drawings to Specification. Class 39(1). [Also in Group XXXVI] The glass cone and window of a television tube are joined so that they may, subsequently be detached, e.g. for recovering a colourswitching grid from a defective tube, by interposing a metal body and enamel layers, rapidly heating the metal body to a temperature above the devitrification range of the enamel to wet the parts to be joined and then cooling to just below the devitrification range so rapidly that no devitrification occurs. The enamel may first be melted down on the metal body, or it may be applied as a powder to the glass or the metal parts. The metal may be copper, aluminium, silver or ferrochromium and a suitable enamel composition for sealing a thin copper body between lead or lime glass parts has the composition : 100 gs. PbO, 18 gs B 2 O 3  and 16À5 gs ZnO ; the joint being heated by an applied electric current or h.f. current to between 575‹C. and 700‹C. and then cooled rapidly in a furnace to 350‹C.
Patent GB-809406-A (GB)
Title: Improvements relating to front or rear walls of motor vehicles
IPC: B62D43/10
Filed: 1957-09-30
Abstract: 809,406. Vehicle bodies. DAIMLERBENZ A. G. Sept. 30, 1957 [Sept. 29, 1956], No. 30597/57. Class 108(1) An end wall 1 of a vehicle has a reinforced rim 2 and two projections 3, 3<SP>1</SP> which extend beyond the rim 2. The opening 6 in the central part of the wall 1 is large enough for the insertion of a spare wheel, luggage &c., and it is closed by a flap 5 pivoted along its upper edge.
Patent GB-858487-A (GB)
Title: Process for the production of 4-methyl-4-phenyl-1:3-dioxan
Inventor: HAWKINS EDWIN GEORGE EDWARD
IPC: C07D319/06
Filed: 1958-09-25
Abstract: 4-Methyl-4-phenyl-1,3-dioxan is produced by reacting together at a temperature in excess of 60 DEG  C. a -methylstyrene and formaldehyde in aqueous solution in the presence of an inorganic acid catalyst for a period not exceeding 3 hours.  Preferably 2 1/2 to 3 moles of formaldehyde are used for each mole of a -methylstyrene.  The formaldehyde is conveniently used as a 35% aqueous solution.  The preferred catalyst is sulphuric acid and the preferred reaction times are from 1/2 to 1 hour.  The process may be carried out continuously. The 4-methyl-4-phenyl-1,3-dioxan may be separated from the reaction mixture by extraction with an organic solvent, e.g. benzene, washing, drying and fractionally distilling under reduced pressure.
Patent GB-185351-A (GB)
Title: Improvements in supports for sanitary and other like basins and appliances
IPC: E03C1/322
Filed: 1921-11-17
Abstract: 185,351. Adams, M. J. Nov. 17, 1921. Tanks are supported by a central heel-shaped projection E and lateral lugs F pierced for bolts C which screw into, or are otherwise secured to, wall plates B. The heel E bears against the wali. The invention is shown applied to a lavatory basin.
Patent GB-695580-A (GB)
Title: Combustion chambers of internal combustion engines
IPC: F02B19/12
Filed: 1950-12-16
Abstract: 695,580. Cylinders. AUSTIN MOTOR CO., Ltd., and LAYLAND, W. Dec. 13, 1951 [Dec. 16, 1950], No. 30710/50. Class 7 (ii). In an internal-combustion engine having a separate metal plate 16, preferably of metal such as copper, located between the cylinder 19 and cylinder head 12 with an opening 17 which affords a restriction through which, during the compression stroke, the charge passes from the cylinder to the combustion chamber 13, it is arranged that the. opening 17, when projected axially of the cylinder into the chamber 13, defines thereon an area which includes the heads of both the inlet and exhaust valves in the cylinder head. The opening 17 is elongated so that it is longer than the cylinder diameter. The plate reduces pinking by both promoting turbulence or " squish " of the mixture and conducting away excessive heat. The Provisional Specification describes also an embodiment in which the plate is made integral with the cylinder head; the plate opening may consist of a number of separate holes.