baber/WOPTO huggingface dataset:
Patent GB-166528-A (GB)
Title: Improvements in power hammers
IPC: B21J7/24
Filed: 1921-07-07
Abstract: 166,528. Leesen, E. von. July 13, 1920, [Convention date]. Power hammers.-In a compressed-air hammer of the type in which the tup piston e, Fig. 1, is actuated by air compressed by a pump piston d, and the distribution of air is effected by a single oscillating valve a, the latter is formed with a central chamber communicating with one or both ends of the valve by a check valve or valves. Figs. 5 and 7 show sections through the ends of the valve, and Fig. 6 a section through the middle of the valve. In the position shown, air passes from the lower end of the pump cylinder and a passage g to a through passage b in the valve, from which it passes by a non-return valve n to a central chamber m in the valve, and by a port p to the passage f leading to the lower end of the tup cylinder. The passages k, l leading to the upper ends of the tup and pump cylinders are connected with the atmosphere through a port y and recesses X, E in the valve, and the tup is held in the raised position. The tup may be held in the lowered position by rotating the valve until the port p communicates with the passage k, the passage l still remaining in communication with the atmosphere. Light blows may be given by oscillating the valve to put the port p alternately in communication with the ports l and k. For heavier blows the valve is rotated to make direct communication between the passages g and f through the passage b, when the tup piston is operated by the alternate compression and suction of the lower end of the pump cylinder. The effect is increased by further rotation of the valve, which puts the upper end of the pump cylinder also in communication with the upper end of the tup cylinder through the passages l, k and a passage c with the central chamber m through a non-return valve, the recess E being dispensed with.
Patent GB-530982-A (GB)
Title: Improvements in or relating to machines for wrapping tobacco fillers
IPC: A24C1/26
Filed: 1939-06-24
Abstract: 530,982. Cigar-making and like machines. AKTIEBOLAGET FORMATOR. June 24, 1939, No. 18452. Convention date, June 25, 1938. [Class 130] In a machine for manufacturing cigars, cigarillos, cigarettes or the like having a device for winding a tobacco filler in a wrapper, a suction channel 23 for conveying the finished product extends from the winding device to a delivery station 25. Tobacco portions are wrapped by means of a rolling apron 4 and the resulting cigar &c. is delivered to a support 13 mounted on a rotatable shaft 14 having an arm 15 connected by a link 16 to a bell-crank 18 actuated by a cam 20 on a rotating shaft 19. The support 13 moves the cigar &c. past stationary trimming cutters 21 and into the suction conduit 23 leading to the delivery chamber 25. From the chamber 25 the cigar &c. is delivered to a collector 50 by a pivoted member 26 connected by linkage 28, 29, 31, 32 to a bell-crank 33 actuated by a cam 34 on the shaft 19. The suction conduit 23 may be connected by a conduit 35 to the same suction source 80 as the suction chamber of the rolling table 3. In order to cut off the suction when the member 26 is opened, a flap 36 is actuated from a cam 41 by means of bell-cranks 38, 40 and links 37, 39.
Patent GB-278822-A (GB)
Title: Improvements in automatic emergency brake mechanism for motor-driven road vehicles
IPC: B60R19/26
Filed: 1926-07-24
Abstract: 278,822. Whitehouse, H. B. July 24. 1926. Wheel guards, obstruction removers, and safety appliances. -An automatic skid brake and lifting-jack for motor vehicles comprises a lever l carrying a brake shoe m and pivotally suspended beneath the driving axle and adapted to be released into braking operation by a latch f pivoted at g and operated by a resiliently mounted buffer b on the front of the vehicle. The latch f normally engages a trip-lever h connected by a rod or wire j to the lever ! l by adjustable means for instance by a removable pin engageable with one of a. series of holes in the lever. Links p limit the movement of the levers l. This brake may be also associated with the front wheels. The ordinary vehicle brakes and the clutch may be simultaneously operated. The skid brake may be controlled by a hand lever for jacking purposes. The ordinary brake lever may be used to reset the latch and trip-lever mechanism.
Patent GB-267386-A (GB)
Title: Improvements in the production of lower boiling distillates from higher boiling petroleum hydrocarbons
IPC: C10G11/08
Filed: 1926-07-24
Abstract: 267,386. Haddan, A. J. H., (Gulf Refining Co.). July 24, 1926. Cracking oils. - A distillate of relatively low boiling-point hydrocarbons, of which at least as much will distil between 200‹ and 270‹ C. as will distil below 200‹ C., is obtained by heating oils of relatively high boiling point with not more than 3 per cent by weight of aluminium chloride and if desired as little as 1 per cent. 950 barrels of oil of high boiling point are placed in a 1000 barrel still and heated to about 148‹ C., 1.80 per cent of aluminium chloride is added in warm oil to bring the charge to 1000 barrels and the still heated until in 5 hours the temperature reaches 238‹ C., the vapours being removed as formed without refluxing. The distillation is stopped after 30 hours and a distillate comprising 89 per cent of the original charge is obtained which on assay distillation showed 22 per cent distilling up to 200‹ C., 35 per cent distilling between 200‹ and 270‹ C. and 43 per cent distilling above 270‹ C. The aluminium chloride may be removed from the still as described in Specification 250,102.
Patent GB-134636-A (GB)
Title: Improvements in or relating to Propellers.
Inventor: YOUNG JOHN ARMSTRONG
IPC: B63H1/12
Filed: 1918-11-12
Abstract: 134,636. Young, J. A. Nov. 12, 1918. Screw propellers.-Relates to propellers having two " headway " blades and two " sternway " blades. The two " headway " blades b, b, Fig. 1, are provided with a slight bulge on their concave faces as shown in section in Figs. 3 and 5, while the " sternway " blades c, c are of streamline section as shown in Figs. 2 and 4, the concavity and convexity extending from hub to tip. In the preferred construction, all four blades are of the same section, namely, that shown in Figs. 2 and 4, and the outlines of the blades about their centre lines are symmetrical.
Patent GB-621629-A (GB)
Title: Draw press for manufacturing thin-walled containers
IPC: B21D22/28
Filed: 1946-06-20
Abstract: 621,629. Cupping. KELLER, J. June 20, 1946, No. 18623. Convention date, May 3, 1944. [Class 83 (iv)] A press for drawing open-ended thin-walled containers of a soft metal, such as aluminium, comprises a punch S, a deep drawing die A co-operating with a holding ring e, and three ring dies B, C, D, adapted progressively to decrease the wall thickness of the container, the dies being so positioned that the upper end of the container is still engaged within the die A when the lower end enters the die B and the dies B, C and D being arranged at intervals from each other equal to at least 90 per cent of the depth of the container at the entrance to the next lower die ring. The dies are mounted alternately with spacers f, f<SP>1</SP> in a holder h, at the bottom of which is a stripper g.
Patent GB-1467902-A (GB)
Title: Control panel assemblies
IPC: E05C7/06
Filed: 1975-06-23
Abstract: 1467902 Locks REDLER CONVEYORS Ltd 23 June 1975 [29 April 1974] 18687/74 Heading E2A  Doors 1, 2 are interlocked by a rotary member 6 which cannot rotate to a position in which its hook 12 clears a hook 14 on door 2 to release it until door 1 has been opened thus withdrawing a blocking key 8 from a slot in rotor 10 at the other end. Similarly, door 1 is prevented from closing by misalignment of the key and the slot until closure of door 2 pushes rotor 6 round, against the bias of a spring or weight 16, to its original position.
Patent GB-890770-A (GB)
Title: Package for sterile articles
IPC: B65D75/34
Filed: 1960-05-27
Abstract: 890,770. Packaging hyperdermic needles. AMERICAN HOSPITAL SUPPLY CORPORATION. May 27, 1960 [July 31, 1959], No. 18740/60. Class 81 (2). [Also in Group XVII] A plastics shell 11 has a portion 19 closely surrounding the hub 15 of the needle and is closed at the base by a sheet 12. A line of weakness 23 is defined by an abrupt change 22 in the contour of the shell adapted to fracture upon downward flexure of the portion 20 relative to the main body of the shell. After bending back the part 20 the syringe is engaged with the needle and used to withdraw it from the cavity 17. The shells may be arranged in sheets with lines of weakness between them to allow separation and cuts to permit the opening of separate chambers whilst the others remain closed. The portion 20 may be bent back under the main portion to form a stand for the syringe.
Patent GB-884000-A (GB)
Title: An electric projection lamp
IPC: G03B21/20
Filed: 1959-06-02
Abstract: 884,000. Projection lamps. GENERAL ELECTRIC CO. June 2, 1959 [June 16, 1958], No. 18797/59. Class 39(2) [Also in Group XX] An electric lamp for projection comprises a sealed envelope containing the light source and a reflector consisting of a portion of an ellipsoid unsymmetrical to the axis of the ellipsoid, with the light source at one of the foci, the second focus lying outside the lamp. In use, the second focus lies between the film gate and the lens system of the projector. The reflector 15 may be of glass with a reflecting coating of silver or aluminium and may have a supporting ledge 17 surrounding the reflecting area. The reflector is carried by the filament supporting wires 5, 6 and a wire 14 which also supports a baffle 13 mounted above the filament 7 to prevent this from being coded by convection currents and to collect tungsten vapours from the filament, thereby reducing blackening of the top of the envelope. The baffle may be of tungsten or aluminium. A coiled coil filament or one consisting of straight segments of coiled wire generally in two planes may be used.
Patent GB-286633-A (GB)
Title: Purification of fuel and other gases
IPC: C10K1/12
Filed: 1927-07-16
Abstract: 286,633. Koppers Co., (Assignees of Gollmar, H. A.). March 7, 1927, [Convention date]. Materials and compositions for purifying.- Fuel and other gases are freed from hydrogen sulphide, and other acidic constituents by washing in an alkali liquid containing a compound of arsenic or metal of the tin group of qualitative analysis, a prepared mixture of alkali and metal compound, preferably in solution, being added to maintain the strength of the wash liquid. In making up the initial solution equal parts bv weight of sodium carbonate and arsenious oxide are mixed and brought into solution by heating, carbon dioxide being elinainated by boiling. The solution is caused to absorb hydrogen sulphide and is then aerated, forming a thio-arsenate. Sulphidation and revivification are then repeated indefinitely with recovery of free sulphur. Additions of mixtures of carbonate and oxide are made at as low and uniform a rate as is consistent with maintaining the strength of the solution and are preferably made by allowing a solution to flow slowly into the system at the inlet to the absorber.. Alkali is also preferably added in this way except when discolouration of the foam or solution indicating a deficiency necessitates a batch addition. Sodium hydroxide or sulphide may replace the carbonate and other arsenic compounds such as arsenious sulphide may be employed. Other alkalis may also be used as the base and tin, antimony or other metal of the tin group in qualitative analysis substituted for arsenic. The initial mixture contains two atoms of alkali metal to one of arsenic subsequent mixtures for addition to the system altering the ratio to 1 : 1. Specification 280,165 is referred to.
Patent GB-357254-A (GB)
Title: Improvements relating to processes for the treatment of chromium-nickel-iron-carbon alloys
IPC: C22C38/40
Filed: 1930-06-21
Abstract: The properties such as the tensile strength, yield point and endurance limit for reversed bending stresses of austenitic chromium nickel iron carbon alloys containing from 6-40 per cent chromium, from 40-4 per cent nickel and up to 1 per cent carbon with or without other elements and having a Brinell hardness of less than 350 are improved by quenching the alloys from a temperature below 950 DEG  C. but not lower than 500 DEG  C. and preferably between 850 DEG  C. and 900 DEG  C.  An alloy containing about 18 per cent chromium, 9 per cent nickel, and 0,15 per cent carbon is referred to.
Patent GB-491903-A (GB)
Title: Improvements in or relating to circuit arrangements for suppressing undesired frequencies in wireless receiving apparatus
IPC: H04B1/18
Filed: 1937-07-08
Abstract: 491,903. Impedance networks. SCHAUB APPARATEBAUGES., G. July 8, 1937, No. 19051. Convention date, July 9, 1936. [Class 40 (iii)] The effect of inherent resistance in a parallel tuned circuit L, C, is eliminated by a resistance R connected between earth and a tapping D on the inductance L. The operation of the circuit is shown with vector diagrams and the value for R evaluated for the general case when the inductance L is divided at D into portions L1 and L2. When L1=L2, R=L/4Cr where r is the inherent resistance of the inductance. If C is variable, its control may be ganged with that of R. The circuit is used for suppressing an undesired high-frequency signal.
Patent GB-1049154-A (GB)
Title: Condensation product and process
IPC: C09D161/20
Filed: 1963-05-15
Abstract: Compositions obtained by reaction of a fusible aminoplast with castor oil together with a cross-linking agent which is a polyepoxide based on epichlorhydrin and bisphenol A in the presence of (and modified with) an aromatic monocarboxylic acid are useful as solvent-free lacquers.  Preferably reaction is effected in two stages, the aminoplast and castor oil being reacted in the first stage in solution in a solvent, e.g. butanol, which is removed by vacuum distillation before the polyepoxide and acid are added for the second stage.  Specified aminoplasts are hexa-methylol- or -methoxy-melamine and urea or benzoguanamine -formaldehyde condensates.  Specified acids are benzoic and p-t-butyl benzoic.  In the examples the polyepoxide has an epoxy value of 0.55 and a molecular weight of 400.
Patent GB-1055369-A (GB)
Title: A litho printing machine, particularly an offset printing machine
IPC: B41L19/00
Filed: 1965-05-06
Abstract: 1,055,369. Printing machines. ROTAPRINT A.G. May 6, 1965 [May 8, 1964], No. 19247/65. Heading B6C. [Also in Division F2] The drive shaft of a lithographic machine can be rotated either by a hand-crank 2 or by a motor-driven pulley 16, the coupling between the pulley 16 and the shaft 5 comprising a helical spring 15 connected at one end 16a to the pulley 16 and at the other end 14a to an external sleeve 14, the spring 15 surrounding a clutch member 6 keyed to the shaft 5. A roller 13 on a lever 7 can be engaged with the sleeve 14 adjacent to the end 14a so as to brake the sleeve and cause the spring 15 to twist itself tightly on the member 6, thus coupling the shaft 5 to the pulley 16. The handle 2 is urged axially leftwards by a spring 3, such movement being limited by the engagement of a follower part 11 on the lever 7 with a concentric track 9 on the hub 1 of the handle 2. In this position a clutch part 4 on the hub 1 engages a clutch part of the member 6, and the roller 13 is disengaged from the sleeve 14, so that the shaft 5 can be rotated by the handle 2. To employ the power drive, the handle when hanging vertically downwards is moved axially to the right so as to disengage the clutch parts 4, 6. During such movement, the follower part 11 first engages an eccentric track 12 on the hub, which is a neutral position wherein neither drive is engaged, and then drops into a recess 12a allowing the roller 13 to engage the sleeve 14 so as to couple the power drive to the shaft 5. If the handle 2 is now rotated, the follower 11 slips out of the recess 12a and on to the eccentric track 12 to uncouple the power drive. Upon further rotation of the handle 2, the eccentric track 12 moves the follower 11 radially outward until it slips back on to the track 9 under the action of spring 3.
Patent GB-140497-A (GB)
Title: Improvements in or relating to steam condensing plant
IPC: F01B25/00
Filed: 1918-11-22
Abstract: 140,497. Morison, D. B. Nov. 22, 1918. Aspirating-apparatus, ejector.-A steam-jet airejector 4 is mounted on a device 2 for condensing the effluent by direct contact with water admitted by a conduit 5<b>. The device 2 consists of a spherical casing 8 containing a curved plate 7, baffles 10<a>, 10, and a central pillar 9, and pro vided with internal gutters 9<b>, 9<a>.
Patent GB-1483276-A (GB)
Title: Method for recovering vinyl chloride from a gas stream
IPC: B01D53/70
Filed: 1975-05-08
Abstract: 1483276 Removing vinyl chloride from gas streams SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 8 May 1975 19389/75 Heading B1L Vinyl chloride is removed from gas streams by contact at temperature below 60‹C with a solvent comprising one or more ketones having a boiling point above 130‹C; the solvent being regenerated at above 60‹C and recycled to the contacting step.
Patent GB-997260-A (GB)
Title: Gas turbine engine fuel heating and oil cooling system
Inventor: SHERLAW WILLIAM
IPC: F02C7/14
Filed: 1964-05-08
Abstract: 997,260. Gas turbine engines. ROLLSROYCE Ltd. May 8, 1964, No. 19405/64. Heading F1G. A gas turbine engine fuel heating and oil cooling system comprises first and second heat exchangers 12 and 17 respectively, a fuel supply control unit 14 for controlling supply of fuel to the engine in accordance with one or more engine variables, conduit means for passing fuel successively through the first heat exchanger, the fuel supply control unit and the second heat exchanger, there being also ducting 20 incorporating valve means 22, 23 for passing engine oil as desired through a selected one or through both of said heat exchangers. Fuel passes from tank 10 to heat exchanger 12 thence through pump 13, fuel control unit 14 and lines 15, 16 to heat exchanger 17. A bypass passage 21 is provided whereby oil flowing in the line may by-pass the heat exchanger 17 and pass straight to the heat exchanger 12. The valves 22, 23 in the oil line 20 may be controlled by a device 24 sensitive to temperature of the oil downstream of the heat exchanger 12. Alternatively, a device sensitive to temperature of the fuel may be utilized.
Patent GB-611102-A (GB)
Title: Improvements in or relating to vibrating devices
IPC: B06B1/16
Filed: 1946-04-01
Abstract: 611,102. Vibrating devices. ARMSTRONG, J. J. V. (Aktiebolaget Vibro-Betong). April 1, 1946, No. 19417/48. Divided out of 609,599. [Class 80 (iv)] [Also in Group II] In a vibrating device for mixing concrete &c., comprising an outer casing 5 to be vibrated and a rotating shaft 1 supported at one end therein, the shaft carries a weighted boss 3 which rides on the interior of the casing to form a conical pendulum. The weight of the boss is made slightly eccentric to the axis of shaft I by providing a groove or other cavity 6 in the surface thereof, producing a variation in centrifugal force of about Œ2 per cent. The boss may be formed with a cylindrical recess at its end engaging a projection of smaller diameter on the casing. Specifications 489,250 and 541,057 are referred to.
Patent GB-1458773-A (GB)
Title: Piston assembly with compression and guiding rings
IPC: F16J9/28
Filed: 1974-05-03
Abstract: 1458773 Pistons OSRODEK BADAWCZO - ROZWOJOWY PRZEMYSLU BUDOWY URZADZEN CHEMICZNYCH CEBEA 3 May 1974 [10 May 1973] 19512/74 Heading F2T A piston, e.g. for use, without lubrication, in a gas compressor, has split or unsplit bearing rings 2 and packing rings 1. The rings 2 may be of graphite and rings 1 of P.T.F.E.
Patent GB-1190772-A (GB)
Title: Control Systems
Inventor: LEE ALAN STUART
IPC: F15B13/16
Filed: 1966-05-03
Abstract: 1,190,772. Fluid-pressure servomotor systems. ENGLISH ELECTRIC CO. Ltd. May 18, 1967 [May 3, 1966], No. 19590/66. Heading G3P. In a double-acting hydraulic jack, rotation of a worm 14 is transmitted by worm-wheel 13A and screw 13B to a nut 15 and axial movement of the latter causes a roller 17 to co-operate with cam surface 18A on the jack piston 12 to produce rotation of member 19 and rod 20. This rotation is transmitted to jack control valve 36 via crank 21, link 22 and floating lever 23, and the consequent movement of piston 12 is fed back to the valve via cam 18A, roller 17, rod 20 and the floating lever. Any externally induced vibration of the piston 12 generates a pressure difference thereacross which is transmitted via lines 29 to chambers 28 to cause a vibration of pistons 25 the result of which is an oscillation of the floating lever about point 35 thereby preventing operation of valve 36 by the piston 12. The vibration is thereby damped. During vibration of pistons 25, flow takes place between respective spring chambers 32 and chambers 28 via orifices 31 and clearance spaces around pistons 25. In the jack of Figs. 4A-4C (not shown), the piston (101) has a hollow piston rod (113) through which extends a control spool (108) co-operating with an externally actuable valve sleeve (107). A collar (111) surrounds the extension of the spool in the annular gap between the latter and the bore of the piston and the collar is secured to the piston by pins (114). Springs (118) on opposite sides of the collar bear at their ends remote from the latter against further collars (116) secured to the spool. The chambers (119) between each collar (116) and the adjacent face of collar (111) communicate with piston chambers (145, 146) and with chambers (121) on the opposite sides of collars (116). The chambers (121) correspond to chambers 32 of Fig. 1 and, in operation, induced vibration of piston (101) causes pressure variations in chambers (145, 146) which are transmitted to chambers (119) to act on collars (116). The net effect is that the spool remains stationary and no flow can therefore occur and the vibration is damped.
Patent GB-223987-A (GB)
Title: A new or improved collapsible legless table
IPC: A47B3/00
Filed: 1923-08-01
Abstract: 223,987. Green, F. W. Aug. 1, 1923. Folding tables; table tops.-A legless table has a foldable quadrangular top 6 provided at each corner with a pocket 7 into which fits the end of an articulated stiffening member 8 separate from the top and consisting of hinged rods with sleeves 11 to slide over the hinged joints and abut against collars or stops 12 on each rod in use. The top may consist of fabric or of wooden or metal slats hinged together by tapes, and when collapsed may be wound round the folded rods. According to the Provisional Specification, pockets or orifices may be formed in the top, and a short support having a spiked end may be hinged to each corner to secure the table firmly to the ground. The stiffening members may be each of two sections and hinged at each corner, one section of each member bearing a sleeve adapted to slip over the free end of corresponding section when the: two are in line along the edge of the top.
Patent GB-576465-A (GB)
Title: Improvements in and relating to the cooling of the valves of internal combustion engines
IPC: F01L7/08
Filed: 1944-10-12
Abstract: 576,465. Valves. BRIGGS MANUFACTURING CO., and GERNANDT, W. G. Oct. 12, 1944, No. 19709. [Classes 7 (ii) and 7 (vi)] In an engine in which a rotatable valve 26 has a combustion chamber 34 and a cooling chamber 56 therein, an expansion chamber 61 is provided for the coolant which may be metallic sodium. The chamber 61 is comprised by a hollow plug 58, having cooling fins 62. It is screwed on to the stem of the valve which is frusto-conical as shown. The valve rotates on bearing rings 32 of bronze or lead-bronze alloy in a head bolted to a water cooled member 29 into which the cylinder barrels, which are air cooled, are screwed. Each valve is driven from a shaft 47 through gears 46, 42, the latter being mounted in a bush 43 and driving the valve through splines 41, 39. A spring, cup-shaped washer 45, interposed between a nut 44 screwed on to the block 58 and a member 40, allows slight movement of the valve, and counteracts negative pressure during the suction stroke.