baber/WOPTO huggingface dataset:
Patent GB-938507-A (GB)
Title: Improvements in or relating to vehicles for transporting concrete or other materials
Inventor: SMITH ARTHUR HENRY
IPC: B60P3/16
Filed: 1961-03-09
Abstract: 938,507. Concrete mixers. BENFORD Ltd. Jan. 23, 1962 [March 9, 1961], No. 8598/61. Class 86. [Also in Group XXX] The discharge of ready-mixed concrete, or similar material, from the tipping non-rotatable body 11 (Fig. 1) of a vehicle is assisted by an agitator near the discharge opening. In the form illustrated the agitator comprises arms 20 (Fig. 3) carried on a shaft 19 driven through belt-gearing from an hydraulic motor 28. The arms 20 are of V-section with the apex leading. The discharge opening is closed by a gate 13 (Fig. 1) and discharge is to an adjustable shoot 17. The tipping trunnions of the body are supported on frames 15 and the body is tipped by a ram 16.
Patent GB-510372-A (GB)
Title: Improvements in and relating to envelopes for small articles
IPC: B65D33/18
Filed: 1938-03-21
Abstract: 510,372. Envelopes ARNOLD, D. March 21, 1938, No. 8627. [Class 94 (ii)] An envelope for small articles is formed from a blank comprising front and back walls, 1, 3 nad gussetted sides 2, the bottom 5 being stored at 6a, 10, 12, 12a to enable a block-bottom end to be formed. The blank is gummed where shaded. After insertion of the contents, the flaps 15 are folded in and sealed together and then the flaps 17 are folded and sealed together and to the flaps 15, as shown in Fig. 2, to form a tab substantially in the plane of either the front or back wall to receive postage stamps &c.
Patent GB-254382-A (GB)
Title: Improvements in apparatus for effecting intimate contact between liquids and gases
IPC: B01D47/08
Filed: 1925-03-31
Abstract: 254,382. Kirkham, Hulett, & Chandler, Ltd., Hersey, S. and Stokes, F. W. March 31, 1925. Scrubbers and washers.-In gaswashing apparatus of the type described in Specification 18129/08, and comprising superposed chambers a provided with a central shaft d carrying a number of rotating trays e which suck up the washing liquid through tubes f from dished plates g and spray it through perforations p, the gases are deflected in their passage through the chambers by annular baffles i so that they travel first against the spray and then with the spray. The plates g are made smaller than the chambers a and have central apertures h by which liquid overflows to the next chamber. The baffles i are inclined towards the sprayers and provided with annular coils i'. Vanes p, q on the sprayers assist the passage of the gases. The bearings of the shaft d are made gas tight by mercury seals v, w.
Patent GB-198494-A (GB)
Title: Improvements in or relating to fire-lighters
IPC: C10L11/04
Filed: 1922-03-25
Abstract: 198,494. Erskine, T. M. March 25, 1922. Composition fuel.-Sawdust, an oxidizing agent such as sodium or potassium nitrate or, chlorate, and resin, preferably in the proportions of 30, 20 and 50 per cent by weight, are mixed at the temperature of the melting point of resin, and the product is poured into moulds.
Patent GB-1089239-A (GB)
Title: Production of styrene
Inventor: DOWNS RONALD ORLEANS
IPC: C07C4/12
Filed: 1966-02-28
Abstract: Styrene is produced by subjecting a mono-alkyl benzene of formula <FORM:1089239/C4-C5/1> where R is a C1- 10 alkyl group, to an elevated temperature (e.g. 550-800 DEG  C.) in the presence of a modifying agent which is one or more of HBr, HCl, HI, H2S or any substance capable of forming one or more of these under the reaction conditions.  Exhaustive lists of suitable modifying agents are given, typical being elemental sulphur, gaseous bromine, bromopropane, benzene thiol, bromobenzene, 3-chlorohexene and hexyl mercaptan.  In examples, styrene is produced from the following alkyl benzenes: n-propyl benzene, n-butyl benzene, isobutyl benzene, 3,3-dimethylbutyl benzene, 3-ethylhexyl benzene, and mixtures of n-propyl and n-butyl benzenes.
Patent GB-622600-A (GB)
Title: Improvements in and relating to the operation of fluorescent lamps from low voltage d.c. circuits
IPC: H05B41/24
Filed: 1947-04-01
Abstract: 622,600. Supply systems for discharge lamps. BROOKE, W., and BALDWIN, H. T. April 1, 1947, No. 8748. [Class 38 (iv)] A fluorescent lamp is supplied from a battery A through a vibrator B and transformer C, the primary winding being centre-tapped and the secondary windings shunted by a condenser to improve commutation. The filamentary electrodes are in series with the secondary winding, a variable choke E and a condenser G, which last gives a resonant starting voltage and is shunted. out by the lamp when started.
Patent GB-526602-A (GB)
Title: Improvements in or relating to internal combustion engines using gas as fuel
IPC: F02K9/00
Filed: 1939-03-20
Abstract: 526,602. Gas engines. BALMFORD, A. B., and JONES, J. March 20, 1939, Nos. 8790 and 23443. [Classes 7 (ii) and 7 (vi)] In a gas engine, the gas is introduced into the cylinder through one or more directive nozzles a at an intermediate point in the cylinder wall, the nozzles being controlled by non-return valves located near the nozzles. The nozzles are directed upwardly and tangentially, and the valves may be operated mechanically, hydraulically, or by the pressure of the incoming gas, for example as shown in Fig. 3, in which the gas admitted from a rotary or other distributing-valve by a pipe h acts on a spring-pressed piston f so as to open the non-return valve c. In a four-stroke engine where the gas pressure is only slightly above atmospheric, use is made of the reduction in cylinder pressure on the suction stroke for assisting the introduction of the gas. In a two-stroke engine, the gas is admitted through a series of nozzles after the exhaust ports are closed, the air ports being arranged between the exhaust and gas-inlet ports. The gas pressure may be controlled by a governor as described in Specification 513,587.
Patent GB-449276-A (GB)
Title: Improvements in or relating to tar-distillation and like stills
IPC: C10C1/04
Filed: 1935-03-21
Abstract: <PICT:0449276/III/1> The dome-shaped bottom 1 of a tar distillation or like still 2 is made without a depending flange or skirt portion but has its marginal portion 1x flattened, and its peripheral edge where it contacts with the shell is welded thereto by a circumferential weld 3 on the outside and preferably also by a weld 3x on the inside.  The flattened marginal portion will afford jointly with the shell and the adjacent part of the dome an annular channel. The weld may be strengthened by means of a covering ring applied over the joint either in one piece or in sections and welded in position to both the shell plate and the bottom plate.  If desired covering rings may be applied on the inside and outside of the joint, the rings being of angular cross section to fit the angles between the shell and the bottom.
Patent GB-824834-A (GB)
Title: Improvements in or relating to finger plates for telephone dials
Inventor: PUCKETTE CHARLES CLARKE
IPC: H04M1/23
Filed: 1958-03-20
Abstract: 824,834. Telephone finger plates. GENERAL ELECTRIC CO. Ltd. March 20, 1958, No. 8929/58. Addition to 822,746. Class 40 (4). A finger plate of the type described and claimed in the parent Specification has its under surface of a light colour so as to reflect light well. The plate may comprise two thermoplastic materials 15, 17 fused or bonded together or they may be bonded to a metallic film 16. Alternatively there may be three layers 12, 13, 14, the top being transparent, the middle of any suitable colour, and the lowest a light colour with a polished surface.
Patent GB-670283-A (GB)
Title: Improvements in and relating to fluid operated follow-up servo mechanisms
IPC: F15B9/10
Filed: 1949-04-01
Abstract: 670,283. Fluid-pressure servomotor-control systems. BOULTON PAUL AIRCRAFT, Ltd., and NORTH, J. D. March 20, 1950 [April 1, 1949], No. 8936/49. Class 135. A fluid-operated follow-up servo-mechanism of the kind in which a piston valve 2 is movable axially to control ports in a sleeve 5 to supply fluid to and exhaust it from the opposite sides of a slave piston 4, said sleeve being movable with the slave piston so that the ports therein are closed by the valve as soon as the latter stops and the piston has moved in synchronism with the valve, is characterized in that the valve is rotated by a fluid jet or jets operating on vanes carried by the valve to prevent sticking of the latter to the sleeve. In an embodiment, the controlling impulse, e.g. from an automatic pilot, is applied through balls 21 to the spindle of valve 2. The valve is rotated by a turbine 26 revolving in a stationary frame 27, which is provided with passages 32 constituting jets tangential to the vanes on the turbine and supplied with pressure oil from a conduit 34. Pressure oil is also supplied continuously from a conduit 45 to the left-hand side of the servo-piston 4 and movement of the piston is effected when valve 2 is moved either to connect the right-hand side of the piston to exhaust or to connect it to the supply line 45, the movement of the piston in this latter instance being due to the differential effective areas of the two sides of the piston. The controlled object is connected to the servo-piston spindle 17. Follow-up movement is provided by transmitting the movement of piston 4 through a lever 9 to the sleeve 5. The sleeve is loaded to the left by a spring 16. The oil under pressure may be supplied by a rotary piston type pump with a spring-loaded reaction ring, but pneumatic instead of hydraulic actuation may be employed.
Patent GB-1409030-A (GB)
Title: Observation hatch in or for military equipment
IPC: F41H5/22
Filed: 1974-02-28
Abstract: 1409030 An observation hatch FRANCE ARMED FORCES MINISTER OF 28 Feb 1974 [8 March 1973] 9214/74 Heading F3C An observation hatch has an opening therein, a transparent dome 2, Fig. 1, for covering the opening and an armoured dome 3 for shielding the dome 2. Both domes are mounted for pivotal movements about a common axis 6 and means are provided to effect the opening and closing thereof. In an embodiment the hatch is mounted in the roof 1 of the turret of a military armoured land vehicle and is defined by a raised edge 5 of the roof. The transparent dome 2 is made of synthetic plastics material, may be hemispherical-shaped and has a supporting frame 4 attached thereto which makes a fluidtight connection with the edge 5 when the dome 2 is closed. The armoured dome 3 has its opening movement limited by a stop 8. A latch 10 is provided to releasably fasten the frame 4 to the edge 5 and a latch 9 is provided to releasably fasten the armoured dome 3 to the frame 4 of the transparent dome 2. The latch 9 comprises a slidable bolt 13, Figs. 5 and 6, which is mounted in a guide 14 carried by the frame 4, is urged by a spring 12 and has an inclined face 13a, and a keeper 11 carried by the armoured dome 3. Release of the latch 9 is effected by a handle 17 mounted on a rotatable rod 15 having a transverse finger 16 engageable in a slot in the bolt 13. The latch 10 comprises a support 18, Figs. 7 and 8, which is secured to the frame 4 and carries a two-armed member 19 having a pivot 20 with a catch 21 pivotally mounted thereon and urged by a spring 22 into engagement with the edge 5 of the roof 1. A lever 23 is pivotally mounted on a pivot 24 carried by the roof 1, is urged by a tension-spring 25, and is rotated in a clockwise direction to release the catch 21 and unfasten the transparent dome 2 from the edge 5. The latch 10 may be released externally of the hatch by a handle 28, Fig. 8, which is mounted on a rotatable spindle 26. The latter is supported by the frame 4 and has a finger 27 which is engageable with the catch 21 to release the transparent dome 2 from the hatch. The external operation of the latch 10 can be prevented by a screw 29, Figs. 9 and 10, which is carried by one arm of a bell crank lever 30 mounted on a pivot 31 supported by the member 19 and which blocks the movement of the finger 27 on the spindle 26. The means for opening and closing the armoured dome 3 from inside the hatch comprises a handle 33, Fig. 11, mounted on a rod 32 which passes through the roof 1 and carries a bevel gear 34. The latter meshes with a bevel gear 35 attached to the armoured dome 3.
Patent GB-369007-A (GB)
Title: Improvements in and relating to mercury vapour rectiflers
IPC: H01J13/16
Filed: 1931-03-26
Abstract: 369,007. Locking bolts. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. March 26, 1931, No. 9223. Convention date, March 26, 1930. [Class 89 (i).] A flat - threaded anode s,pigot k has axial and radial clearance within a socket b of the anode bar of a mercuryvapour rectifier, rotation of the spigot therein being prevented by means of a pin e engaging in recesses in adjacent threads. The pin may be fixed in a thread of the spigot or of the socket and projects beyond the thread surface a distance which is less than the axial clearance. A spring d, thermally protected by means of a distance piece g, ensures the pressure necessary between the threads for electrical contact.
Patent GB-107632-A (GB)
Title: Improvements in Power Driven Reciprocating Implements and Means for Driving the same.
Inventor: CONSTANTINESCO GOGU
IPC: F16H43/02
Filed: 1916-07-03
Abstract: 107,632. Constantinesco, G., and Haddon, W. July 3, 1916. Percussive drills; percussive hand tools.-Reciprocating implements or devices such as percussive drills and rivetting hammers adapted to be driven by a liquid-wave transmission system of the type described in Specifications 9029/13 and 12438/14 [both in Class 69 (ii), Hydraulic presses &c.] comprise a piston held in a mean position by springs, the parts being so proportioned that the natural time period of the reciprocating parts is equal to the periodicity of the waves or impulses, and so arranged that the blow occurs when the piston is at that point of its stroke at which it would be in equilibrium under the pressure of its springs and the mean pressure in the transmission line. The transmission pipe is connected to an aperture 41, Fig. 13, in the casing of a drill, and the water has access to the back of the piston 35 carrying the drill bit 32, the piston having an abutment for springs 39, 40. The piston is intermittently rotated by ratchet members 47, 49, the member 47 being slidably keyed on the piston, and the member 49 being oscillated by connexions with a spring-controlled piston is acted on by the liquid vibrations. The rear end of the piston 35 has an aperture 45 working over a conical needle 46 so that a quantity of water is allowed to pass through the piston and hollow drill bit. In a modification the drill is adapted to be fed forward by means of a. cylinder 73, Fig. 20, which is connected to the transmission line, and contains a plunger 74, the end of which bears against a fixed surface. In this form the piston 75 is adapted to strike a blow against the end of the parts supporting the bit, which is intermittently rotated by means of ratchet members 79, 89, the member 79 being oscillated by connexions with a spring-controlled piston acted on by the liquid vibrations. Tn a rivetting hammer, a piece 126, Fig. 25, controlled by springs 128, 129, and adapted to strike the hammer piece 130, is reciprocated by a piston 125. The casing has a handle 121, within which is a lever 122 for operating the valve 124.
Patent GB-790093-A (GB)
Title: Alkaline earth metal titanates
IPC: C01G23/00
Filed: 1956-03-26
Abstract: Finely divided alkaline earth metal titanates are prepared by coprecipitating equimolar amounts of an alkaline earth metal compound and a titanium compound at a pH of 8, separating, drying and calcining the precipitate.  In the preferred practice of the invention, a solution of barium, calcium, magnesium or strontium chloride and of titanium tetrachloride is mixed with a solution of ammonium hydroxide and ammonium carbonate to coprecipitate an alkaline earth metal carbonate and titanium hydroxide, the precipitate is washed to remove chloride ions, dried at 70-250 DEG C. for 30-90 mins. and calcined at 1300-1750 DEG  F.  In one example, the ammonium compounds solution was prepared with a mixture of water and methyl alcohol to facilitate separation of the precipitate; in another example, the washed precipitate was repulped with water and digested for an hour at the boiling point before separating &c. After light crushing, the products are said to have a particle size below 0.5 m , often below 0.1 m .
Patent GB-162512-A (GB)
Title: Improvements in and relating to apparatus for reading patterns and manipulating the punches for cutting jacquard cards for lace and other weaving
IPC: D03C19/00
Filed: 1920-04-01
Abstract: 162,512. Frame, A. April 1, 1920. Cards, punching.-Comprises improvements in the means for actuating the intermediate needles of the machines, described in Specification 17044/92, for reading patterns and manipulating the punches for cutting jacquard cards for lace and other weaving. The operator depresses keys 1 which, through bell-cranks 3 &c., Fig. 5, depress a selection of levers 4, 6 connected in pairs by links 5; the bars 4, 6 thus depressed are moved clear of driving- bars 11, 7, which are moved by connected bell-cranks 15, 13 on shafts 16, 10 oscillated bv treadle or other mechanism, of which the connecting-rod 8 and arm 9 are shown in Fig. 4. The unselected bars 4, 6 thus 'move laterally vertical bars 2, which act on the corresponding intermediate needles C, and control the cross needles, the string needles, and the selecting needles which operate on the punches. The bell-crank 17 on the shaft 10 operates, by means of a link 17<a>, a double pawl 20, 20<a>; as this rises and falls it rotates a shaft 22 and toothed gearing 23. 24. so that chains 26 encircling the sprocket wheels 25, 27 move up or down on guide bars 32 a box c containing the row of intermediate needles C, which are thus brought into alignment successively with each tier of cross needles. The vertical movement of the box c is reversed by a handle 33 and cross-head 34. The bars 2 are retracted by springs encircling the parts C, 2<a>, and by a frame 7<a> on the bar 7.
Patent GB-768406-A (GB)
Title: Improvements in or relating to electric welding systems
IPC: B23K11/26
Filed: 1955-04-01
Abstract: 768,406. Welding by pressure. WESTERN ELECTRIC CO., Inc. April 1, 1955 [April 23, 1954], No. 9560/55. Class 83 (4). [Also in Group XXXV] A clamped wire 10 and a block 11 held in jaws 13 are percussively welded together by discharging between them condensers C1, C2, whilst the two members are brought into engagement by a spring 14 acting on one of them which is movable.
Patent GB-526870-A (GB)
Title: Improvements in or relating to gas fires
IPC: F24C3/04
Filed: 1939-03-28
Abstract: 526,870. Gas fires. PARKINSON STOVE CO., Ltd., and ANGUS, H. T. March 28, 1939, No. 9622. [Class 126] [Also in Group XIII] Air supplied to the burner 13 or burners of a gas fire is preheated by being passed over surfaces 21 heated by flames or combustion products from the burner or burners. As shown, air for combustion passes from an inlet 25 through passages 26, 27 to the burner. A plate 21 separating the flue from these passages is provided with fins 22 or rods to facilitate the exchange of heat. Air can also pass behind the partition 19, above a division plate 14 with upwardly and downwardly projecting fins 23, and out through openings 28 in the canopy 24. In a modification, the passage for heating air supplied to the room is omitted, and the fins 22 may pass through the canopy, which replaces the plate 14, to radiate heat.
Patent GB-473470-A (GB)
Title: Improvements in or relating to the hydrolysis of titanium salt solutions
IPC: C01G23/053
Filed: 1937-04-05
Abstract: In the thermal hydrolysis of titanium salt solutions portions of seeding material are added to the solution at intervals during the hydrolysis.  Any known seeding agent may be used including a dry gel of a hydrated titanium compound prepared as described in Specification 451,890, a seed solution prepared as described in Specification 406,580, and rutile seeding crystals obtained by combining an alkali metal titanate and a halogen acid to form a neutral mix using methyl orange as indicator.  Solutions of titanium sulphate or chloride may be used for the hydrolysis.  In operating the process, a portion of the seeding material may be added when the solution reaches the boiling point, and further portions be added at approximately hourly intervals during the boiling to effect hydrolysis.  The addition of a small portion of seed material towards the very end of the hydrolysis slightly increases the yield. Examples of operation are given.  The products of hydrolysis may be calcined, say at 900 DEG  C. with the addition of potassium carbonate, to yield pigments.
Patent GB-976484-A (GB)
Title: Improvements in or relating to rifle projectiles
IPC: F42B7/10
Filed: 1961-03-16
Abstract: 976,484. Ammunition. SPRENGSTOFFWERK VEB. March 16, 1961 [Dec. 14, 1960], No. 9661/61. Heading F3A. A projectile for a hand firearm comprises a guide device in the form of a multiflanged synthetic resin plug. The resin is preferably polyethylene. The projectile 1 has grooves 2, and the plug has a stem which engages in a hone in the projectile. Alternatively, the projectile may be provided with a stem disposed in a hone of larger diameter in the projectile, the plug stem being hollow and thus engaging the projectile on both internal and external surfaces.
Patent GB-991572-A (GB)
Title: Method of improving the dyeability of polyolefines
IPC: C08F8/30
Filed: 1962-03-13
Abstract: The dyeability of polymers of aliphatic mono-olefines, diolefines and vinyl aromatic compounds is improved by effecting graft or block copolymerization of the polyolefine with acrylic or methacrylic acid (or with a functional derivative thereof followed by conversion to carboxylic form), and then treating the modified polyolefine with an alkylene imine or derivative thereof, e.g. ethylene, 1,2-propylene, 1,2-butylene, 2,3-butylene, isobutylene, tetramethylene and cyclohexylethylene imines, ethylene ureas, ethylene thioureas, ethylene urethanes, ethyleneimido compounds, ethylenesulphamide compounds, N-alkyl or N-aryl ethyleneimines, hexamethylene-bis-ethyleneurea. p,p1-bis (ethyleneurea)diphenyl methane and 2,4,6-tris -(aziridinyl)-s-triazine.  Polyolefins specified are polyethylene, polypropylene, polybutene - 1, poly(3-methylbutene - 1), poly(4-methylpentene-1), polystyrene, polybutadiene, and ethylene-butene-1 and propylene-butene-1 copolymers.  Specified derivatives of acrylic and methacrylic acids which may be graft or block polymerized on the polyolefine, followed by hydrolysis to the carboxylic form, are acrylamide, methacrylamide, butyl acrylate, 2 -ethylhexyl acrylate, methyl methacrylate, n -butyl methacrylate, sodium and potassium acrylates, acrylonitrile and acrylyl chloride. The acids, or derivatives thereof, may be used in conjunction with other monomers, e.g. acrylonitrile, vinyl acetate, vinyl chloride and vinylidene chloride.  The monomers may be grafted on to the polyolefine by means of ionizing radiation, by formation of hydroperoxide groups on the polyolefine molecule, or by shearing the polymer molecules thermally or mechanically. The grafting monomer may be used in undiluted form or in solution, e.g. in water or ethyl lactate.  The polyolefine may be in shaped (e.g. fibrous) or unshaped form when grafted.  The treatment with the alkylene imine or derivative thereof may take place with the imine in vapour, undiluted or solution form, and before or after subjecting the grafted polyolefine to a shaping operation.  The grafted polyolefine may be blended with unmodified polyolefine either before or after treatment with an alkylene imine.