baber/WOPTO huggingface dataset:
Patent GB-113461-A (GB)
Title: Improvements in or relating to Ampoules.
Inventor: COHEN HARRY
IPC: A61J1/06
Filed: 1917-01-20
Abstract: 113,461. Cohen, H., (Cohen, L.). Jan. 20, 1917. Capsules.-An apparatus functioning as an ampoule or adapted for delivering drugs not requiring an absorbent pad comprises a glass tube A formed with a neck at each end over which a rubber bulb B and an absorbent pad C a r e stretched and secured by a wire &c. A rubber or other waterproof cap D, secured to the device by a cord D<1>, is provided to cover the pad C and retain the contents when not in use. In operation, the cap is removed and so much of the liquid as is required is extruded by compressing the bulb B. In refilling, the pad is not removed but the bulb B is compressed before immersing the pad in the liquid. In a modification, the bulb B may be dispensed with, the end of the tube being sealed, and when a pad is not required, the neck to which it is attached is reduced in size.
Patent GB-510069-A (GB)
Title: Improvements in or relating to containers of the barrel type
IPC: B65D25/16
Filed: 1939-01-12
Abstract: 510,069. Barrels. FIRESTONE TYRE & RUBBER CO., Ltd. Jan. 12, 1939, No. 1053. Convention date, March 18, 1938. [Class 21] In a metal barrel comprising a shell and a spaced lining, the ends of the shell form doublewalled chimes having reinforcing indentations in the inner and outer walls. The lining 10, which may be of stainless steel, is supported within the shell 11 by rings 17, insulating strips 18 being provided at the ends: The shell is extended to form the chimes 13 which are provided with indentations 15, 16. A bung opening is provided consisting of a liner 20, welded to the lining, and surrounded by a sput 21 welded to the liner 20 and to the shell. The barrel is also provided with two tap openings. The lower opening has a sput 23 welded to the shell and having a shoulder 23a over which the metal of the lining is spun. The upper opening has a sput 28 furnished with a flange 28a extending between the shell and the lining, a gasket 29 being provided.
Patent GB-621531-A (GB)
Title: Manufacture of chlorinated aliphatic acids
IPC: C07C51/363
Filed: 1947-01-13
Abstract: A chlorinated aliphatic acid is prepared by introducing chlorine into a heated aliphatic acid of not more than four carbon atoms which contains a small quantity of the corresponding anhydride or acidyl chloride, and is free from inorganic chlorination catalysts, until at least 50 per cent of the acid is chlorinated, and adding small quantities of said anhydride or acidyl chloride during the process to maintain the presence of acidyl chloride throughout the same.  In preparing chloracetic acid, additional acetyl chloride or acetic anhydride may be added before absorption falls noticeably, conveniently after absorption times of 3-5 hrs.  Thus, 15-20 parts of chlorine per hour may be passed into 100 parts of acetic acid containing 3-5 parts of acetic anhydride, 2-3 parts of additional anhydride being added after 4 hr. absorption periods to obtain in 12 hrs. a product which crystallizes on cooling and is equivalent to more than 80 per cent conversion.  In an example, 16-17 parts of chlorine per hour are introduced into 95-100 of glacial acetic acid and 4 of acetic anhydride at 105 DEG  C., over 12 hrs., 2 parts of acetic anhydride being added every 2-3 hrs.
Patent GB-734866-A (GB)
Title: Improvements in or relating to the resilient mounting of differential gear casings in motor vehicles
IPC: B60K17/16
Filed: 1953-01-14
Abstract: 734,866. Mounting gear boxes. REGIE NATIONALE DES USINES RENAULT. Jan. 14, 1953 [Feb. 5, 1952], No. 1142/53. Class 79(3). In a motor vehicle the differential gear casing is so resiliently mounted on the vehicle frame that the centre O of the universal joint between the propeller shaft and the differential gear remains fixed relative to the vehicle frame. As shown in Fig. 2 the gear casing has arms b and is resiliently mounted on the frame at A, A<SP>1</SP>, B, B<SP>1</SP>, the lengths A, A<SP>1</SP> and AB being in the ratio of the reduction gear in the gear casing. The casing is said to oscillate about an axis X, Xl passing through the universal joint centre O. In another embodiment, Fig. 4, the casing has only one arm b and is resiliently mounted at A, B and at a third point situated in the shaded zone Z, preferably at P<SP>1</SP> on the oscillation axis X, X<SP>1</SP>. In a further embodiment, Fig. 7, the casing is resiliently mounted at A2, A<SP>12</SP> and B. The differential gear casing may be combined with a torque changing device, such as a mechanbical change speed gear or a hydraulic torque converter.
Patent GB-542602-A (GB)
Title: Improvements in fluid-pressure operated electric circuit breakers
IPC: H01H33/98
Filed: 1941-01-29
Abstract: 542,602. Fluid-pressure servomotor control systems ; valves. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 29, 1941, No. 1193. Convention date, Jan. 30, 1940. [Class 135] [Also in Group XXXVII] The movable contact of a fluid-pressure operated switch is opened against the bias of a spring and toggle mechanism so arranged that as the opening movement progresses, the opposing force diminishes, whereby the complete opening of the switch is assured. In the air-blast switch of Fig. 4 a contact 111 is initially opened by the blastpressure and uncovers a port 145 whereby the pressure is admitted to a motor 142 which opens the companion contact 112 to provide a long isolating break. The piston 113 carrying contact 111 is controlled by a toggle linkage 115 acted on by springs 121 which are arranged so that the downward component tending to reclose the contact 111 diminishes as the contact opens. The opening or closing movement is controlled by orifices 117, 118 which may have adjustable non- return valves provided with leakage vents, Fig. 5 (not shown). The airblast is admitted from pipe 124 by movement of contact 111 and a reduced opening 123 is closed by the contact 112 so that the arc is forced into a chute 125 as in Specification 544,017, [Group XXXVII]. When port 145 is uncovered, the pressure acts to raise the piston 141 of motor 142 and upset a retaining toggle 137, 138 for contact 112 which moves to the open position, the upper face of piston 141 being open to atmosphere through valve 148. The valve 144 then closes. To reclose the breaker, valve 148 is operated to admit pressure above the piston 141, it being also possible to provide a closing blast, as in Specification 544,017, [Group XXXVII], by imparting an impulse to valve 144, which blast would retract contact 111 and expose ports 145, but be inadequate, owing to leakage, to do more than buffer the piston 141. Valve 144 may be of the solenoid-operated, time-delayed type, but where it is desired to open and close the contact 111 a number of times before contact 112 is opened, as on transient faults, the valve may be controlled in response to overload conditions in the line in which case the pipe 146 is modified, as shown in Fig. 6, by being led to a valve 150. An adjustable ball-valve 152 admits air above a piston 155 each time the contact 111 opens port 145, the air being allowed to leak away through a needlevalve 160. In the conditions in question, sufficient air will be admitted to depress the piston 155 in stages, so as to open valve 158 and admit air from pipe 151 to motor 142, at the same time covering an exhaust port 159 for the underface of that piston.
Patent GB-388903-A (GB)
Title: Improvements in or relating to trailer brake operating means
IPC: B60T7/10
Filed: 1932-01-15
Abstract: 388,903. Hand brakes. TAYLOR, J. W., 23, William Street, Rochdale, and DAY, F., 22, Milton Street, Royton, both in Lancashire. Jan. 15, 1932, No. 1200. [Class 103 (i).] Winding or sprocket gear for operating the brakes of a trailer from the tractor vehicle comprises a casing secured to the back of the back board of the tractor and containing a winding drum or sprocket wheel and a ratchet locking device and a hand-wheel and a locking control lever mounted on shafts that project forwardly through the back board. In the Figure, the winding drum 14 is disposed in a casing 2 secured to the back board 3 of the tractor at the rear of the driver's seat and is mounted on the shaft 11 of the hand-wheel 12. A ratchet wheel 15 secured to the drum 14 is engageable with a spring-urged detent 19 on a shaft 16 provided with a hand-lever 21. In a modification, the winding drum is secured to an internally toothed gear wheel with which engages a pinion on the hand-wheel shaft and the ratchet teeth are formed on the exterior circumference of the gear wheel. In a further form, a sprocket chain connected at its lower end to the brakes and at its upper end to a fixed point on the casing, passes around a pinion on the hand-wheel shaft.
Patent GB-718946-A (GB)
Title: Improvements in or relating to method of catalyst preparation and regeneration
IPC: C10G35/14
Filed: 1953-01-15
Abstract: <PICT:0718946/III/1> Oxides or sulphides of the metals of Groups V and VI of the Periodic Table, e.g. molybdenum, chromium, tungsten, vanadium, uranium and tantalum are deposited on a catalyst support, e.g. alumina in the form of finely divided particles by a continuous process in which the catalyst support is maintained as a dense fluidized bed in a treating zone under conditions such that metallic oxide or sulphide is liberated from an added solid substance containing the metal, withdrawing catalyst support particles together with the deposited metal oxide, and adding catalyst support particles to the dense bed.  In a preferred embodiment of the process for the preparation of a molybdena-alumina catalyst containing 2-30 per cent. by weight of molybdena, the treating zone 10 is divided into two fluidized belts 11 and 12, supported on grids 13 and 22 and separated by a gas space in such a way that catalyst particles may flow from the upper to the lower bed through conduit 19.  The lower fluidized bed is maintained at 1000-1400 DEG F. preferably 1125 DEG -1400 DEG F. whilst the upper bed is maintained at a somewhat lower temperature, e.g. 900 DEG F. or lower.  Alumina is introduced at 14 and a raw flotation concentrate of molybdenite which has been previously roasted in air is introduced at 16, the finished catalyst being withdrawn through 23.  The fluidizing gas introduced at 21 may be air or a combustion gas stream and it may contain water vapour. Ammonium molybdate may be used as the metal compound.  The process may be applied during the regeneration of a fouled catalyst used in a hydroforming process.  Promoters may be present in the catalyst.
Patent GB-945299-A (GB)
Title: Improvements in or relating to apparatus provided with an electric heater element
IPC: D06F75/24
Filed: 1960-01-13
Abstract: 945,299. Electrically heated flat-irons and pans. PHILIPS GLOEILAMPENFABRIEKEN N.V. Jan. 13, 1960 [Jan. 16, 1959], No. 1266/60. Heading H5H. In an apparatus comprising an electric heater element enclosed in a metal sheath, a dissipator in the form of a heat plate of hard metal, i.e. hardness exceeding that of cast aluminium which is assumed to be 60 V.P.N. (Vicker's Pyramidal Number), in thermal contact with said heater element sheath, a compensator constituted by a metal plate, and a solder layer of high thermal conductivity interposed between the dissipator and the compensator to provide good thermal contact therewith, the coefficient of expansion, thickness and area of the metal plate constituting the compensator are so chosen that forces exerted during expansion or contraction on the solder layer by the compensator and the dissipator are substantially equal so that there is substantially no resultant bending force. The dissipator may be the sole-plate of a heatiron or the bottom of a pan. In the flat-iron shown the sole-plate 1 is of sheet steel of a hardness of say 150 V.P.N. A compensator 2 also of sheet steel has an embossed edge 3 so that the centre portion is spaced from the dissipator 1 by a distance A which is maintained by bosses 4. The space is filled with solder 13 which may be copper and is preferably applied by brazing. A heater element 6 comprising a filament 10 embedded in inorganic refractory insulating material 9 filling a steel sleeve 9 is gripped by tags 5 bent from the compensator 2 and may also be soldered thereto. A hood 11 rests on the edge of the compensator 2 and methods are described of uniting the edges of the dissipator 1, compensator 2 and hood 11 by pressure, spot-welding, or bending one edge around the others, followed by crimping and soldering. A brace or tapped boss for securing a thermostatic switch may be soldered to the dissipator 1 and project through an aperture in the compensator 2. The dissipator 1 may comprise two thin plates one of which is provided with apertures to permit effective union by solder. In alternative embodiments the compensator is corrugated so that the solder layer 13 is thicker adjacent the heater element 6. A pan employing this arrangement is described (Fig. 8, not shown).
Patent GB-111754-A (GB)
Title: Improvements in Carburetters for Internal Combustion Engines.
Inventor: GREENWOOD JOHN HARRISON
IPC: F02M9/08
Filed: 1917-01-26
Abstract: 111,754. Greenwood, J. H. Jan. 26, 1917. Spray carburettors.-The fuel nozzle 2 is narrowed or tapered towards its mouth and is controlled by a needle valve 4 which projects siightly beyond the orifice so as to assist in the delivery of the fuel as spray. The lower end of the valve is screwed, passes through a plug 5 and is provided with a pinion 6 which is actuated by a sector 8 mounted on a bracket 7. The nozzle is surrounded by a cone 9, the outlet aperture of which is equal or approximately equal in diameter to the outside of the nozzle body. The flow of air through the cone 9 is controlled by an adjustable perforated disk 11, of metal, asbestos, or other suitable material, working over a fixed perforated disk 10. The cone 9 may be replaced by a curved or dome-shaped part.
Patent GB-394734-A (GB)
Title: Improvements in or relating to sound recording and reproducing apparatus
IPC: G11B3/14
Filed: 1932-01-16
Abstract: 394,734. Mounting gramophone pickups; tone-arms. RADIO CORPORATION OF AMERICA, 570, Lexington Avenue, New York, U.S.A.-(Assignees of Kendall, J. M. ; Woodbury Heights, New Jersey, U.S.A.) Jan. 16, 1932, No. 1386. Convention date, March 12, 1931. [Class 40 (ii).] A gramophone sound-box or electric pick-up assembly is provided with a relatively high moment of inertia embodied in the apparatus about the torsional axis Y-Y thereof, and a region of flexibility in the suspension arm 11 to prevent the transmission of vibrations to the sound-box or pick-up from its support. The suspension arm 11, which carries the pick-up 10 at one end as shown in Figs. 1 and 3, is pivotally connected by a horizontal pin 25 with a supporting pedestal 12 provided with a pivotal mounting on a baseplate. The region of flexibility in the arm 11 is provided by a narrow neck portion 29 intermediate the flared ends of the arm. The suspension arm, which may be of thin sheet metal, is provided with a peripheral flange 31. The relatively high moment of inertia is provided by a pair of weights 30 which are mounted on opposite sides of the torsional axis Y-Y of the apparatus in the flared portion of the arm carrying the pick-up. The weights are mounted in a wing- shaped frame 36, Fig. 6, which is secured by welding in the arm 11. Coincident openings in the end part of the flange 31 and in the frame 36 are adapted to receive the neck portion of the pick-up which may be secured in position by a bolt 42. An opening provided in the arm 11 above the weights 30 is adapted to be closed by a cover-plate. A counterweight 28 is secured by a rivet 35 to the end of the arm 11 remote from the pick-up. The leads from the pick-up are adapted to pass through the hollow pivot pin 26. In the case of a tone-arm, the region of flexibility may be provided by making the wall thinner at a zone between its ends and the sound-box may be provided with laterallydisposed weights similar to the weights 30.
Patent GB-1356555-A (GB)
Title: Safety device on an explosive projectile
IPC: F42C14/00
Filed: 1973-01-11
Abstract: 1356555 Fuzes DIEHL 11 Jan 1973 [2 Feb 1972] 1479/73 Heading F3A A fuze for an explosive, fragmentation projectile 1, Fig. 1, comprises a propellant charge 3 which, when ignited by an electric detonator 4, throws a firing pin 10 against a delayed-action fuze 20; and a safety-pin 11 which is withdrawn from the firing pin by means of a hinged, L- shaped member 12 hooked around the rear of the projectile. The member 12, until its removal from the projectile, prevents the projectile being inserted in the barrel of the firing weapon and also short circuits annular electrodes 7 and 8 for supplying current to the detonator.
Patent GB-743911-A (GB)
Title: Improvements in or relating to the revaporization of liquid oxygen
Inventor: MONROE ADAM GREGORY
IPC: F17C9/02
Filed: 1953-01-19
Abstract: 743,911. Respiratory appliances. BRITISH OXYGEN CO., Ltd. Jan. 15, 1954 [Jan. 19, 1953], No. 1500/53. Class 81(2). [Also in Group XXVIII] A closed-circuit breathing apparatus comprises a face mask 8 from which exhaled air traverses a valued duct 10, a soda lime container 11 and a duct 12 to an annular space between an inner cylinder 2 containing a cartridge 1 of porous material in which is held liquid oxygen and an outer cylinder 3 ; oxygen gas mixed with the exhaled air in the annular space then traversing a duct 4, a capacity bag 5 and a valved duct 6 to be inhaled through the mask 8.
Patent GB-764045-A (GB)
Title: Refining of wood pulp
IPC: C08B1/08
Filed: 1955-01-18
Abstract: In the refining of wood pulp, the pulp is treated with a hot caustic alkali solution containing tall oil and a non-ionic detergent comprising a polyglycol ether of an alkyl-phenol.  The treatment reduces the resinous content of the resulting cellulose, and is preferably effected after the normal chlorinating and bleaching steps in the sulphite process.  The treatment is preferably effected on the pulp as a slurry having 2-20 per cent dry pulp content with a solution containing 3-25 per cent sodium hydroxide, 0.1-5 per cent tall oil and 0.1-1 per cent non-ionic detergent at 80-170 DEG  C. for 10-240 minutes.  In an example, sulphite wood pulp which had been chlorinated and bleached was formed into a slurry containing 8 per cent pulp with an aqueous solution containing 12 per cent sodium hydroxide.  To the slurry was added 0.3 per cent of the mixed ether obtained by condensing nonyl-phenol with ethylene oxide in a molar ratio of 1:10, and 1 per cent of tall oil comprising 66-71 per cent fatty acids, 25-30 per cent rosin acids and 2-4 per cent of sterols and the like.  The slurry was heated to 140 DEG  C. in 25 minutes and maintained at that temperature for 20 minutes.  The pulp was then washed and scoured with aqueous sulphur dioxide solution to a pH value of 5.5.  Its alpha-cellulose content and viscosity were high whereas its content of material soluble in an alcohol/benzene mixture had been reduced to 0.03 per cent.
Patent GB-160329-A (GB)
Title: Improvements in timbering for the erection of reinforced concrete and other constructions
IPC: E04G25/04
Filed: 1920-01-17
Abstract: 160,329. Green, B. Jan. 17, 1920. Centering for floors and ceilings.-Moulds are formed of adjustable frames carried bv a cross bearer b<1> which is carried by an upright b adjustable by means of a screw d in a frame a. The frames also carry side brackets g for the floor bearers h which carrv the adjustable cross beams i so that the distances between the beams may be varied. The upright frames a are connected by battens m, n.
Patent GB-547037-A (GB)
Title: Improvements in or relating to the towing of vehicles
IPC: B60D1/18
Filed: 1941-02-05
Abstract: 547,037. Preventing overstrain in towing cables. WALKER, P. B., DAVIDSON, W., and POOLE, J. Feb. 5, 1941, No. 1651. [Class 78 (v)] Means for preventing excessive strain in the tow rope of land, air or water vehicles or craft comprises a drum B on which is wound the cable &c. A forming the tow rope. The drum is drivable in the winding-on direction by an electric, steam or hydraulic motor G through an irreversible gear F and a friction clutch D. A snap-over switch &c. K, L for starting and stopping the motor G is actuated by a crank-pin J on a disc H driven by the drum shaft. A sudden excess load on the cable A will cause the clutch D to slip and the drum B to turn in the unwinding direction. This rotates the disc H, and an accumulation of such jerk effects, or a single heavy jerk, will cause the pin J to turn the switch K, L over to start the motor. This steadily winds in the cable again and the pin J eventually snaps back the switch into " off position. A drum B may be mounted on each vehicle &c.
Patent GB-920714-A (GB)
Title: Improvements in or relating to fuzes for missiles
Inventor: KELLIHER MAURICE GORDON
IPC: F42C11/00
Filed: 1960-01-15
Abstract: 920,714. Missile fuzes. VICKERS RESEARCH Ltd. April 6, 1961 [Jan. 15, 1960], No. 1556/60. Classes 9 (1) and 9 (2). A fuze for missiles and in particular torpedoes, comprises a directional sensing head 1 with two ultrasonic transducers 2, 3, a rate gyro 5 which produces an electric signal dependent on the rate at which axis 1A of the head, arranged to be substantially coincident with the. sight line between the head and target, turns in space and electronic equipment between the gyro and a detonator 7. A switch 9 adjustably adapted to close after a predetermined time or distance of travel, connects a switching device 8 to an output 10 which is only energized when the rate of turning of the gyro exceeds a predetermined high value. The outputs of transducers 2, 3 are amplified by amplifiers 23, 24 whose outputs are added by an automatic gain control unit 25. A guidance system as described in Specification 920,713 operates when the signal from the transducers is sufficiently great, but on continued increase of the signal, as the missile approaches the target, stable operation ceases. However, at this point a relay 26 is sufficiently energized to operate a switch 27 and thence a standard rotary relay 28 which in turn operates switch 8 by moving wiper 11 one position clockwise and with it the linked wipers 29, 30, these latter reducing the gain of amplifiers 23, 24. This process is continued and when wiper 11 has reached any of contacts 16-22, output 10 is connected to detonator 7, provided switch 9 is closed. At this stage a high angular velocity of the head, as when the missile passes near the target, will cause firing of the detonator. A direct action permission fuze is also provided.