baber/WOPTO huggingface dataset:
Patent GB-460143-A (GB)
Title: Improvements in the manufacture and production of alkyl halides and of unsaturated organic compounds
IPC: C07C17/25
Filed: 1935-07-15
Abstract: Alkyl halides and unsaturated organic compounds are produced by reacting an aliphatic alcohol or ether with a compound containing a halogen atom and a hydrogen atom attached to two adjacent carbon atoms, in the presence of a dehydrating catalyst consisting of or containing an oxide or salt.  The halogen compound may be aliphatic, alicyclic, aromatic-aliphatic, or heterocyclic, the halogen being on an aliphatic carbon atom. Suitable halogen compounds are propyl, isopropyl and bornyl chlorides, isopropyl iodide, isobutyl bromide, a and b -chlorpropionic acids and their esters, chlorpropionic nitrile, and chlorcyclohexane; di-, tri-, tetra- and pentachlorethanes, and 1-2-dibromcyclohexane.  Suitable alcohols and ethers are lower monohydric aliphatic alcohols, benzyl alcohol, glycols, and the corresponding ethers; also alcohols such as vinyl alcohol which are not stable in the free state.  In some cases, as when employing ethylene chloride as starting material, the products include oxygen-containing compounds such as acetaldehyde in addition to the unsaturated compound such as vinyl chloride.  In the examples there are obtained (1) and (2) propylene and methyl chloride or bromide from isopropyl chloride or bromide and methyl ether; (3) propylene and methyl iodide from isopropyl iodide and methanol; (4) methyl chloride and an olefine from a monochlorinated aliphatic hydrocarbon of 12--14 carbon atoms and methanol; (5), (6) and (8) vinyl and methyl chlorides from 1-2-dichlor-ethane and methanol or methyl ether; (7) vinyl and methyl fluorides from 1-1-difluor-ethane and methanol; (9) cis- and trans-dichlorethylene, asymmetric dichlorethylene and methyl chloride from 1.2.2-trichlor-ethane and methanol; (11) to (14) trichlorethylene and alkyl chloride from 1.1.2.2-tetrachlorethane and methanol, ethanol or dimethyl ether; (15) tribromethylene and methyl bromide from 1.1.2.2-tetrabromethane and methanol; (16) tetrachlorethylene and methyl chloride from pentachlorethane and methanol; (17) and (18) cyclohexene and methyl or ethyl chloride from monochlorcyclohexane and methanol or ethanol; (19) cyclohexene and vinyl chloride from monochlorcyclohexane and methyl ether; (20) camphene and alkyl chloride from bornyl or isobornyl chloride and alkyl alcohol or ether; (21) dihydrobenzene and methyl chloride or bromide from dichlor- or dibrom-cyclohexane and methanol; (22) to (24) acrylic acid or its methyl ester or nitrile and methyl chloride from b -chlor-propionic acid or its ester or nitrile and methanol or methyl ether.
Patent GB-451309-A (GB)
Title: Improvements in electrically heated water reservoirs
IPC: F24H9/20
Filed: 1935-07-16
Abstract: 451,309. Automatic control systems. STIEBEL, T., 22, Eresburgstrasse, Tempelhof, Berlin. July 16, 1935, No. 20264. [Class 38 (iv)] Temperature.-An electric water-heater is provided with a thermostat f in an overflow pipe, the arrangement being that when steam is generated in the heater this escapes through the pipe and actuates the thermostat to cut off the heating current, the thermostat switching on the current when its temperature falls owing to cold water entering the heater or through heat dissipation when the flow of steam has ceased. A second thermostat n may be associated with the cold water supply pipe b and the switches of these thermostats are connected in parallel in the heater circuit. A steam space is left in the heater so that when condensation takes place as the temperature falls a cooling draught of air is drawn over the thermostat. The condensation may be facilitated by spraying the cold feed water into the steam space. In the case of the type of heater in which hot water is discharged through an overflow pipe by the entry of the cold feed, the overflow pipe d containing the thermostat is placed above the overflow pipe c for hot water and thus no water reaches the thermostat. A V-shaped trap may be provided in the pipe c to prevent steam escaping therethrough. The cold feed water may be led through a jacket j surrounding the thermostat pipe.
Patent GB-888723-A (GB)
Title: Glass electrode
IPC: G01N27/36
Filed: 1960-06-09
Abstract: 888,723. Electrolytic testing apparatus. BECKMAN INSTRUMENTS Inc. June 9, 1960 [Feb. 8, 1960], No. 20274/60. Class 37. [Also in Group XXIII] A glass electrode for pH measurement comprises a tube 10 joined to a bulbous membrane of ionsensitive glass having at least one inwardly directed corrugation 23 formed, for example, by blowing in stages. U.S.A. Specification 2,346,470 is referred to.
Patent GB-398009-A (GB)
Title: Improvements relating to the cylinders of internal combustion and other engines
IPC: F02F1/18
Filed: 1932-07-18
Abstract: 398,009. Cylinders. LœTTGES, GEB., Solingen, Rhineland, Germany. July 18,1932, No. 20289. Convention date, July 17, 1931. [Class 7 (ii).] A liner is formed by helicallywinding a steel band a which has a tendency to expand and so exerts an outward pressure on the cylinder. The liner, which may be machined after insertion, is made from finished bright-drawn band steel. The edges c may be stepped, as shown, or transverse, or inclined to the cylinder axis.
Patent GB-335971-A (GB)
Title: Improvements in or relating to electrical measuring and protective apparatus for alternating current circuits
IPC: G01R19/22
Filed: 1929-07-02
Abstract: 335,971. Nalder Bros. & Thompson, Ltd., and Lipman, C. L. July 2, 1929. Current, pressure, a n d phase meters; reactance and resistance measurements.-A quotient, differential measuring instrument (usually of the induction type) comprises an electromagnet structure with a main core portion, for example A<1>, Fig. 5, and an auxiliary core portion C magnetically in parallel therewith, a current winding on the yoke A producing a divided flux. The main flux, in combination with supplementary fluxes due to windings on the external cores A<1>, C (or as shown in Fig. 5 a voltage winding V on the pole B' of an internal core B) produces a torque on the induction disc D constituting the main rotor. The auxiliary flux in the auxiliary core, by itself or in conjunction with windings (short circuited windings C<1> which may be adjustable are shown) produces a control torque on an induction disc D on the main rotor spindle d which assists or opposes the main torque. The main and the auxiliary control devices may be of the moving coil or moving iron type. Shortcircuited coils f, which may be adjustable, serve for the phase adjustment of the magnetic fluxes produced by the coils P, V. By suitable adjustment of the control torque, the instruments so designed will operate correctly over the full range of possible current and voltage variations to which they are subjected, and, in a quotient instrument, any law associating voltage, current and phaseangle may be followed to give, for example, a rising, drooping or level characteristic of impedance with increase of load. Various dispositions of the coils in relation to the magnetic circuit are described whereby various characteristics may be obtained. Specifications 321,686 and 324,056 [both in Class 38 (v), Electric switches &c.] are referred to.
Patent GB-158590-A (GB)
Title: Improvements relating to the expression devices in auto-pianos and analogous musicalinstruments
Filed: 1919-08-19
Abstract: 158,590. Towner, A. D., and Petters, Ltd. Aug. 19, 1919. Expression-controlling; blowing and exhausting air; actions, pneumatic. - An expression-controlling device comprises a throttle-valve 15 disposed within a multiple-spring controlled bellows 14 and attached to a floating lever 13 pivoted at one end to the movable bellows member and actuated at the other end by hand through a system of levers. Air enters the bellows 14 from the bass action airchest 20 through a. passage 18 and clack-valve 19, and from the treble-action air-chest 27 by passages not shown ; it then passes from the bellows by the valve 15 and a passage 30 to a chamber 7 connected to the exhaust. The chests 20, 27 are also directly connected to the chamber 7 by valves 6 controlled by accentuation apertures in the tracker-bar. An expression device comprising a bellows 9, throttle valve 45, and hand-controlled floating lever 43 is connected between the chamber 7 and the exhaust. As shown in Fig. 4, each valve 6 is actuated by a bellows 31 which may be connected to atmosphere or to an exhaust chamber 34 by a valve 33 operated by a diaphragm 35; the space below the diaphragm is connected by a pipe 36 to an aperture in the tracker-bar and also to the chamber 34 by a small hole 42. The handle controlling the throttle-valve 15, Fig. 2, when in the inoperative position, opens a valve connecting the pipes 36 to the atmosphere.
Patent GB-1373854-A (GB)
Title: Method for the manufacture of alumina bodies
IPC: B01J37/00
Filed: 1972-05-03
Abstract: 1373854 Alumina bodies NORTON CO 3 May 1972 [10 May 1971 (2)] 20491/72 Heading C1A [Also in Division B1] A method of making a strong, high surface area alumina body comprises mixing microcrystalline platy boehmite of particle size less than 100 microns, with a dilute aqueous monobasic acid which acid has an anion with ionic size no larger than that of propanoic acid to form a dry freeflowing particulate mix of aggregates, forming said mix by pressure into discrete shaped bodies, drying said bodies and firing. The acid is preferably formic or nitric, but also specified are hydrochloric, acetic and propanoic acid. A catalytically active metal or metal forming compound may be incorporated into the body by adding it to the acid/boehmite mix prior to the pressure forming. The monolithic polycrystalline body so formed, with a surface area greater than 10 sq. m. per. g. and a wall thickness at some point of less than 1/16 inch is claimed per se.
Patent GB-818396-A (GB)
Title: Improvements in and relating to brake bands and band brake arrangements
Inventor: MILLER ALBERT ARTHUR
IPC: F16D49/12
Filed: 1956-07-03
Abstract: 818,396. Band brakes. SELF-CHANGING GEARS Ltd. July 3, 1957 [July 3, 1956], No. 20599/56. Class 103 (1). In a brake band of the kind in which a brake lining is carried by a metal strip at the ends of which are provided lugs for transmitting or receiving the braking force, the connection between the lugs and the band strip includes a dowel or shear member positioned to resist in shear the forces due to brake application. In the embodiment illustrated, a brake band arrangement for an epicyclic gear-box is shown comprising a brake band 1 of high tensile strip steel formed to encircle the brake drum 2 over almost the whole of its periphery. Each of the two ends of the strip 1 has riveted to it, by a rivet 8, a lug 4 and within the bore 9 through each of the lugs 4 and the band strip 1 beneath it is secured a dowel or shear pin 10 secured by a locating pin 12; the pin 10 being of sufficient sectional area to resist in shear the brake application and reaction forces. The brake band 1 comprises a pair of brake shoes 13, 14, the upper brake shoe 13 being fixed and the lower brake shoe 14 being arranged to float in a manner similar to that disclosed in Specification 587,033. The lower or floating shoe 14 is formed with a radial lug 18 which is pivoted to a link 21 which is pivoted to a bracket secured to the baseplate 24 of the gear casing. The brake is actuated by piston and cylinder device 51, 50 arranged to act in conjunction with reaction member 45 to compress the band against the force of helical springs 42, 43. Curved plate and pin arrangement 37, 33, 39 ensures that the floating shoe 14 and the strip 1 are positioned in relation to each other whilst permitting a limited circumferential movement together with ensuring the correct clearance between the brake drum and a friction lining. The piston 51 has a spring ring 54 seated in a circumferential recess and in frictional engagement with a wall of the cylinder 50 to form a frictional stop for the piston on its return stroke.
Patent GB-1039584-A (GB)
Title: Precipitation hardened tungsten alloy
IPC: C22C32/00
Filed: 1964-05-19
Abstract: An alloy consists of 0.001 - 0.02% C, 0.01 - 1% Zr, 0 - 10% Mo and the balance W, at least a portion of the C and Zr being in the form of precipitated zirconium carbide dispersed throughout the W crystals.  The alloy may be solution treated at a temperature above the expected service temperature to ensure the above microstructure.
Patent GB-334656-A (GB)
Title: Improvements in or relating to aluminium base alloys
IPC: C22C21/02
Filed: 1929-07-05
Abstract: 334,656. Aluminium, Ltd., (Assignees of Archer, R. S., and Kempf, L. W.). Dec. 22, 1928, [Convention date]. Alloys.-Aluminium-silicon alloys, particularly suitable for pistons, and containing about 7-15 per cent of silicon, contain also 0.2-3 per cent of magnesium, 0.5-7 per cent of nickel, and 0.7-3 per cent of copper. In some cases manganese, chromium, and titanium may be added, and iron may be present as an impurity. According to the Specification as open to inspection under Sect. 91 (3) (a) the alloys may contain up to about 25 per cent of silicon. This subject-matter does not appear in the Specification as accepted.
Patent GB-615409-A (GB)
Title: Dust tight fluorescent lighting luminaires
IPC: F21S8/06
Filed: 1944-10-25
Abstract: 615,409. Overhead lamps. HOLOPHANE, Ltd. (Holophane Co., Inc.). Oct. 25, 1944, No. 20755. [Class 75 (iv)] An elongated dust-tight fluorescent lamp enclosure has a window 11 in the bottom thereof permanently sealed in position as by clamp plates 24, and a dust-tight door 27 in one of the longer sides which may be swung open easily and which when open affords access to the lamps for replacement. A platform 37 pivoted to the end walls by pivots 34 supports a ballast 42, which may be an iron core inductance, and carries three fluorescent lamps 41. The door 27 is connected by hinge links 26 to slotted lugs 25 on the wall 12 of the enclosure, and when it is swung open a locking device 46 may be released to permit rotation of the platform 37 into the position shown in dot-and-dash lines when it is maintained by the weight of the ballast in position against a stop 46. To gain access to the ironcore inductance the plate 37 is rotated in the opposite direction to bring the ballast toward the door opening where it can be locked in position by the engagement of a locking lever 47 with a rest 48.
Patent GB-723536-A (GB)
Title: An improvement in or relating to textile carding machines
IPC: D01G15/46
Filed: 1951-09-04
Abstract: 723,536. Carding-engines. BLACKBURN, H., and KILNER, K. L. Sept. 2,1952 [Sept. 4, 1951], No. 20810/51. Class 120 (1). A carding-engine including two swifts a, d, an intermediate doffer b and an angle stripper c is provided with an adjustably positioned stripping roller e beneath the angle stripper c and in stripping contact with the doffer, so as to eliminate the need for " fettling " the doffer b. The teeth of the stripping roller e have a pointto-back action with the angle stripper teeth and a back-to-back contact with the doffer teeth into which they may enter to any desired depth.
Patent GB-935199-A (GB)
Title: Multiple spindle tapper
IPC: B23G1/18
Filed: 1961-06-08
Abstract: 935,199. Tapping. NATIONAL MACHINERY CO. June 8, 1961 [Feb. 24, 1961], No. 20838/61. Class 83 (3). A nut-tapping machine comprises a pusher 74 against which a nut 81 is pressed while a thread is started therein and a guide 84 to prevent rotation of the nut as the tap 87 is moved rearwardly taking the nut with it. The machine has two shafts 14 rotated by a common belt drive 18 with a hand wheel 19 for setting-up purposes. Each shaft is connected to a tapping spindle 23 by rollers 28 engaging a groove 29. A gear on one shaft 14 rotates a cam 41 on a shaft 31 via spur and worm gearing, the cam engaging an adjustably-mounted follower 42 to oscillate a lever 49 and so reciprocate the tapping spindle 23. The shaft 31 also carries a cam to reciprocate the other spindle. The cams work against springs 60 which urge each tap towards a nut. Nuts are fed from a sorter to shoots 13. At the lower end of each shoot is a pusher 74 reciprocated by a cam 57 on the shaft 31 operating through links 59, 63, 62, the latter being mounted on a pivot 67 which yields against springs 72 in the event of jamming. The nuts are prevented from rotation by V-grooves 84. The curved shank tap is mounted in guides 94, 96 in blocks 91, 92 on the spindle 23. The blocks are clamped together with one guide 94 displaced to provide clearance for the nuts as the tap is rotated. At the front of the blocks is an eccentric guide 95. The arrangement assures a concentric rotation of the tap in the nuts being threaded. A spring-pressed stop at the end of the guide 94 prevents nuts being thrown off by centrifugal force.
Patent GB-1424875-A (GB)
Title: Electromagnetic flow transducers
IPC: G01P5/08
Filed: 1973-05-02
Abstract: 1424875 Electromagnetic flowmeters  SYBRON CORP 2 May 1973 [19 June 1972] 20881/73 Heading G1N An electromagnetic flowmeter includes a ceramic tube e.g. of porcelain for location either within a pipe or between two sections of a pipe through which a conductive liquid flows, the ends of the tube including integral flange formations which do not interrupt the flow of liquid in the tube, magnetic field producing means being located in the space between the flanges and the outer surface of the tube. In one embodiment, Fig. 2 (not shown), and Fig. 3, the flanges 11, 12 are flared outwardly, the end edges of which are formed with a respective ledge 17, 22 for mounting a stainless steel strip which surrounds the tube for housing various components of the flowmeter. This type of flowmeter may either be located within a pipe of larger crosssection, e.g. a sewer, Fig. 1 (not shown), or located between two sections of a pipe, flanges on the pipe sections engaging flats 14, 19 on the flanges 11, 12, Fig. 7 (not shown). In a second embodiment, Figs. 4 and 5, and Fig. 6 (not shown), two flanges 111, 27 and 112, 29 are provided at each end of the tube 109, the flanges 111; 112 being provided with ledges 115, 120 for mounting a stainless steel strip 126, and the flanges 27, 29 being shaped to mount elastomeric cushions 31, 32 for coupling the tube between two sections of a pipe. The strip 126 surrounding the tube houses a pair of saddle-shaped coils 34, 35 clamped by a strap 36. The position of the coils is adjustable.
Patent GB-347969-A (GB)
Title: Improvements in and relating to the transmission of pictures
IPC: H04N3/04
Filed: 1930-07-10
Abstract: 347,969. Television. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Bentley, J. O. ; Castle Point, Beacon, New York, U.S.A.) July 10, 1930, No. 20912. Convention date, Aug. 16, 1929. [Class 40 (iii).] In a television transmission system, the object or picture is scanned along radial lines. A cylindrical member 16, closed at one end except for a slot 20, and rotated by gear wheels 24, 25, carries in a bearing member 26 the shaft of a disc 14 provided with radial slots 29, and with a gear wheel 27 meshing with a fixed toothed wheel 13. As the member 16 is rotated the light beam from a source 11 is swept across the slot 20 bv each of the slots 29 of the disc 14, and due to the rotation of the slot 20 the picture or object 10 is scanned in a series of radial lines. The light beam reflected from the object 10 falls upon light-sensitive cells 18. The slot 20 is shaped so that the width of the scanning beam is increased from the centre towards the ends of the radial lines to equalize the illumination. A weight 28 is formed on the member 16 to counterbalance the combined weight of the bearing member 26 and of the disc 14.
Patent GB-690365-A (GB)
Title: Improvements in furnaces
IPC: F23C3/00
Filed: 1951-09-05
Abstract: 690,365. Pulverulent-fuel furnaces. BABCOCK & WILCOX, Ltd. Sept. 5, 1951 [Sept. 6, 1950], No. 20943/51. Class 51(i) A cyclone furnace is provided with a substantially cylindrical furnace chamber 1 which receives through one end a rapidlywhirling mixture of air and fuel and through its side additional air directed so as to whirl in the same direction as the mixture, the additional air being introduced in end regions of the chamber. The additional air is introduced through nozzles 7, 8, the widths of which radially are adjustable.
Patent GB-499786-A (GB)
Title: Improvements relating to conveyors for pulverulent materials
IPC: F41G7/00
Filed: 1937-07-29
Abstract: 499,786. Screw conveyers; driving and controlling motor vehicles. EUROPEESCHE FULLER VERVOERMAATSCHAPPIJ N. V. July 29, 1937, No. 21035. Convention date, July 31, 1936. [Class 78 (i)] [Also in Group XXXI] A conveyer for powdered material comprises a casing having at its forward end a pick-up in the form of a perforated rotary disc 5 arranged nearly parallel with and slightly off the floor on which the material rests. The disc 5 is driven slowly through reduction gearing 10 by a motor M<2>, and the material is removed from its upper surface by a screw conveyer 15, the outer flight of which is unenclosed, and the inner flights of which, within the pump chamber 1, have a decreasing pitch in order to compact the material as it advances. Over the outer flight is located a splayed hood 4 which concentrates the material about the screw. A projecting rod 12 fends off the disc 5 from contact with walls &c., and also serves to break down the material as the conveyer moves forward. Located near the inner end of the screw is an air ring 16 to which air is led by a pipe 19 furnished with a volume control cock 18 and a three-way cock 17 to which a flexible hose is secured. The cock 17 has a connection to a casing 25 containing a gravity flap-valve 26 operable by an external handle. The aerated material flowing through the pipe 22 raises the valve 26, which closes when the flow stops. If the pump is to be stopped for some considerable time, the operator opens the cock 17 to clear the pipe line while the material is still fluent, the pressure of this air closing the valve 26 and thus preventing a blow-out over the disc 5. The screw is driven by a motor M<1> of the squirrel cage induction type. The conveyer may be mounted on a vehicle the two roadwheels of which are independent and each is provided with its own motor M<3>. The machine is adapted to be electrically actuated, controlled, and steered from a distance by a flexconnected self-opening switch, furnished with four mercury contacts whereby by tilting the switch either of the wheel motors may be excited for forward or reverse. In operation the cocks 17 and 18 are opened to admit air to the ring 16, and the motors M<1> and M<2> are started by a press button on the switch. The switch is tilted to guide the disc 5 against the material, and the disc is preferably swung from side to side, while wholly or partially submerged. Should the screw-driving motor M<1> become overloaded, a limit-set relay deenergizes the holding or actuating coil of a starter which stops the motor M<2> and as the load falls the relay re-starts the motor. Thermal relays protect the motor M<1> from too frequent overloading, and the motors M<3> from damage when stalled. Gauges in a panel 78 indicate the air pressure in the pipe line 22 and in the air-ring pipe 19. Specifications 396,600 and 499,841 are referred to.