baber/WOPTO huggingface dataset:
Patent GB-439983-A (GB)
Title: Improvements in miners' safety lamps or the like
IPC: F21L23/00
Filed: 1934-07-07
Abstract: 439,983. Miners' &c. safety lamps. HAILWOOD, E. A., Beacon House, Texas Street, Morley, near Leeds. July 7, 1934, No. 19949. [Class 75 (iv)] In a miners' or like safety lamp in which means are provided for drawing air into the lamp for testing purposes, the air intake fitting is so constructed and so connected to the lamp that its air intake opening is adjustable with respect to the lamp into a number of operative positions, whereby air from a variety of levels may be drawn into the lamp. In the form shown in Fig. 1, an annular member A<1> is rotatably mounted on the lamp bonnet B and is provided with an opening A<2> coinciding with an opening or perforations in the bonnet and communicating with an arc shaped tube A attached to or carried by the member A<1>, the tube A having a telescopic part E adapted to be raised and lowered by a handle H. One side of the part E may be apertured or serrated as at A<4>, and the tube A may be connected to the member A<1> by means of a trunnion. In the form shown in Fig. 4, a spirit lamp is formed with ports P, P', the port P' leading to the open air by means of a conduit P<3> forming or carrying a handle H<1>, and the port P being connected by a trunnion P<1> to a tube A provided with a suction and expelling device such as a rubber or like bulb R, a pump, or a bellows, suitable valves being fitted where necessary. The air intake tubes may be of circular, oval, rectangular, or other cross section, they may be adapted to draw in air from one or both ends, and they may be employed to operate friction igniters or extinguishing plates. A number of tubes may be hinged to a belt surrounding the existing air intakes of the lamp. In the form shown in Fig. 8, the lamp is carried by a platform F hinged to an air intake tube A in the form of a walking stick constructed like a bicycle pump. The air collects in a bellows R<1> and is forced through a connection A<x> into the lamp by means of a spring R<2>. In a further modification the lamp is carried by trunnions interposed between the handle and the ferrule of the stick.
Patent GB-403324-A (GB)
Title: Improvements in or relating to gas analysis and apparatus therefor
IPC: G01N7/08
Filed: 1933-07-14
Abstract: In a method of gas analysis involving alternate dissimilar estimations (e.g. of CO2 alone and CO + CO2 respectively) a difference between successive determinations is utilised to operate a signalling or controlling device.  Fig. 3 illustrates a form of the invention in which the signalling device is actuated only when two successive determinations of the same kind differ in the same direction from the intermediate determination.  A liquid piston device 2 of the kind described in Specification 16561/08, [Class 1, Acids, alkalies, &c.], automatically drives successive volumes of gas from the measuring vessel 1 through the CO2-absorber 10, the residual gas collecting in a bell 14.  At the conclusion of each operation the operating liquid rising in the <PICT:0403324/III/1> tube 19 raises the piston 52 and reverses the mercury seal 5, so that in alternate operations the gas passes through the furnace 8 where its CO content is oxidised.  The liquid rising in tube 11 also contacts with the wire 29 energising magnet 17 which removes the brake 51 from the pointer 15, allowing the latter to take up a position in accordance with that of the bell 14.  According to whether the pointer has moved to the left or the right of its previous position, contact is made between the point 23 and one of the points 20, 21 on a switch device revolubly mounted on the pointer axle 28.  Through the said contacts one of the magnets Z, R is excited, depending on the position of the mercury switches 26, 27 which are reversed simultaneously with the mercury seal 5. The operation of magnet Z moves the toothed segment S one step forward and when the segment has moved two steps the switch B operating the signalling or controlling device A is closed.  The energising of magnet R lifts the pawls K, L and restores the segment to its initial position.  Two successive operations of magnet Z without an intervening operation of magnet R are thus necessary to actuate the signal.  The switches 20, 21, 26, 27 are so arranged that magnet Z is energised when a CO + CO2 estimation is greater than the preceding CO2 estimation, while magnet R is energised when CO + CO2 is less than the preceding CO2 and also when CO2 is higher than the preceding CO + CO2.  Alternative arrangements of the switches 26, 27 giving modified conditions for the actuation of the signal are also described.
Patent GB-1028695-A (GB)
Title: Process for the preparation of alkyl aluminium halides
IPC: C07F5/06
Filed: 1963-05-20
Abstract: An alkyl aluminium halide of general formula RmAIXn, wherein R is an alkyl group having from 2 to 10 carbon atoms, X is a chlorine, bromine, or iodine atom, and m+n = 3 is prepared by reacting a dialkyl aluminium monohydride with hydrogen chloride, hydrogen bromide or hydrogen iodide in at least a chemically equivalent amount with respect to the aluminium. The reaction may be carried out at room temperature, and under ordinary pressure, but preferably at superatmospheric pressure. The reaction may be carried out under an anhydrous nitrogen atmosphere, and in the presence of hydrocarbon solvents.  The reaction mixture may be heated to 80 DEG  to 100 DEG C. to complete the reaction.  Gaseous hydrohalic acid may be allowed to bubble into the liquid dialkyl aluminium monohydride or lap the surface of the liquid whilst it is stirred.
Patent GB-389349-A (GB)
Title: Improvements in and relating to flat bed knitting machines
IPC: D04B11/22
Filed: 1932-07-14
Abstract: 389,349. Knitting-machines. SCHUBERT & SALZER MASCHINENFABRIK AKT.-GES., 11, Lothringerstrasse, Chemnitz, Germany. July 14, 1932, No. 19989. Convention date, Aug. 24, 1931. [Class 74 (ii).] A pattern drum 13 for acting on lace points &c. 10 of a flat-bar machine is furnished on its periphery with longitudinal slots in which can be inserted grooved bars 19. Pattern elements 17 consisting of bent wire are inserted in the grooves 18 and act on lever arms 16 the other ends of which control the points 10 individually. The drum is displaceable axially, to reduce the number of patterning elements required for a given pattern, by the usual studded wheel which also acts on the lace points &c. 10.
Patent GB-385550-A (GB)
Title: Improvements in vacuum cleaners
IPC: A47L5/06
Filed: 1932-07-15
Abstract: 385,550. Vacuum cleaners. SCHLING- PL€SSER, O., 13, Karlstrasse, Halle-on- Saale, Germany. July 15, 1932, No. 20079. Convention date, July 16, 1931. [Class 8 (i).] In a vacuum cleaner the fan b is operated by rack-and-pinion gear, the rack d being operated by the thumb whilst the cleaner is held by the handle i.
Patent GB-1495249-A (GB)
Title: Equipment cleaning process
IPC: C08F2/00
Filed: 1976-05-14
Abstract: 1495249 Removing nitrile polymer residues MONSANTO CO 14 May 1976 [16 May 1975] 20079/76 Heading C3P Residues of a polymer having 55-85% by wt. of nitrile monomer units (calculated as acrylonitrile) are removed from processing equipment, e.g. polymerization reactors and reflux condensers, by contacting the equipment with a solvent which is dimethyl formamide, dimethyl acetamide, dimethyl sulphoxide or N - methyl - 2 - pyrrolidone under agitation and at a temperature of 75‹ C. to the b.p. of the solvent for sufficient time to dissolve all the residues, draining the solvent, contacting the equipment with fresh solvent to dissolve the film residue of spent solvent, and draining the solvent and then rinsing the equipment with water at a temperature of 50-200‹ C. until the solvent concentration in the rinsing water is below 1 p.p.m. In the examples reactor vessels which had been used to polymerize acrylonitrile and styrene were washed with dimethyl formamide, cold and hot water successively.
Patent GB-270532-A (GB)
Title: Improvements in locking devices for extension ladders
IPC: E06C1/12
Filed: 1926-08-16
Abstract: 270,532. Stephens, A. Aug. 16, 1926. Ladders.-A device for automatically locking the sliding member e of an extension ladder relative to the base-member s, comprises a U-shaped bar h which is pivoted in lugs k fixed to the basemember and adapted to rest on a rung r of this number and under a rung of the sliding member. The end m of the locking member is bent to form a stop, and the other end is bent and formed into a loop p to receive the operating rope a for raising and lowering the sliding member. The rope passes over a pulley g mounted on the base-member, and its ends are secured to a bracket f on the sliding member, which can be lowered by first pulling on the rope to raise the member, then deflecting the rope to hold the locking member out of operative position, and finally releasing the grip.
Patent GB-1122249-A (GB)
Title: Novel diazo compounds and diazotype copying material
IPC: G03C1/54
Filed: 1966-05-06
Abstract: The invention comprises compounds of the general formula <FORM:1122249/C2/1> wherein R1 is a C1-C4 alkyl group; R2 is a C1-C4 alkyl group or an aralkyl group containing not more than ten carbon atoms; R1 and R2 may form a substituted or unsubstituted heterocyclic ring; Q is an alkylene or hydroxyalkylene radical containing at least two carbon atoms; R3 and R4 are alkyl or hydroxyalkyl groups and may form a heterocyclic ring with the nitrogen atom; R5 is an alkyl or aralkyl group; X is H, halogen, alkyl or alkoxy; and Y1 and Y2 are each acid anions.  In an example, 2-chloro-5-nitrophenol is reacted with ethylene bromide to give 2-chloro-5-nitrophenol-b -bromoethyl ether which is reacted successively with diethylamine and pyrrolidine to give 5-nitro-2-pyrrolidinophenyl - b  - diethylaminoethyl ether, subsequently quaternizing the pyrrolidone nitrogen atom with ethyl iodide.  The nitro group is then reduced, diazotized and finally reacted with zinc chloride.  A number of further final products are specified by formulae
Patent GB-742508-A (GB)
Title: Improvements in and relating to hydrostatic couplings
IPC: F16D47/06
Filed: 1953-07-21
Abstract: 742,508. Clutches. LOHMANN & STOLTERFOHT, AKT.-GES. July 21, 1953 [July 21, 1952]. No. 20284/53. Class 80(2) A hydrostatic coupling, comprising planet gears 3 carried by the driving shaft 1 and engaging internal teeth on an annulus 4 so as to form gear pumps, is in series with a friction clutch comprising flexible tubes 7 carried by an annulus 5 secured to the driven shaft 2a and cooperating with the external surface of annulus 4. The clutch is automatically disengaged at a predetermined degree of slipping of the coupling. Oil is supplied continuously to the gear pumps 3 by a pump 23 through a filter 24, pipe 16 and passages 11 in shaft 1, discharge from the pumps 3 being through passages 12 in shaft 1 and a common relief valve 13 in shaft 1. A valve 14, also arranged in shaft 1, automatically changes over the connections of passages 11, 12 on reversal of shaft 1. Valve 13 is loaded by pressure oil continuously supplied by a pump 27 through filter 28, pipe 18 and conduit 15. Tubes 7 are supplied with pressure oil by pump 27, or a separate pump, through pipe 20 and passages 8, 9, 10 under the control of a manually-operated rotary valve 29 and an automatically-operated piston valve 36, 37, 38, the piston 38 being of larger diameter than the pistons 36, 37. A pipe 35 leads to the end of piston 36. In the disengaged position of valve 29, pipes 30, 35 are closed and pipe 33 is open to a drain pipe 34, so that the pressure in tubes 7 is relieved through pipes 20, 32, 33, 34 and the clutch is disengaged. In the intermediate position of valve 29, pipes 30, 35 are opened. so that the piston valve is moved to the right against a spring 39, allowing pressure oil to flow to engage the friction clutch through pipes 31, 20, pipe 32 being now closed by piston 36. In the final, engaged position of valve 29, pipe 35 is connected to drain pipe 34, but the piston valve remains in its rightward position due to the larger area of piston 38. If the hydrostatic coupling slips, pressure in pipe 16 falls and spring 39 functions to move the piston valve to the left, so causing the friction clutch to be disengaged. Alternatively, the friction clutch may be controlled by an electric switch operated by the pressure in pipe 16.
Patent GB-523442-A (GB)
Title: Variable speed ratchet gearing
IPC: F16H29/22
Filed: 1939-01-05
Abstract: 523,442. Variable - speed ratchet gearing. HERMANSON, E. W., TORESKOG, C. G., and BORJESSON, D. G. Jan. 5, 1939, No. 20292. Convention date, Jan. 5, 1938. Divided out of 523,415. Drawings to Specification. [Class 80 (ii)] The subject-matter is the same as that of Specification 523,415, but the claims are directed to the feature that the common driving pivot of the variably oscillated links is linked to a disc which is coaxial with the driving shaft, and is driven forwardly at a reduced speed by a toothed gear connection with the driven shaft.
Patent GB-772617-A (GB)
Title: Improvements in or relating to chemical treatment of plutonium hexafluoride and uranium hexafluoride
Inventor: MANDLEBERG CHARLES JOHN
IPC: C01G43/00
Filed: 1954-07-12
Abstract: Uranyl sulphate and a sulphate of plutonium which is believed to be tetravalent are prepared by passing uranium or plutonium hexafluoride vapour into strong, preferably 98 per cent, sulphuric acid.  The sulphuric acid is preferably saturated with fluorine. When saturation is reached in the process, crystals begin to form and are separated from the sulphuric acid, which in the example, which refers to plutonium, is returned with a further quantity of acid for further treatment.  Suitable vessels may be constructed of nickel alloys, aluminium, copper or platinum or may be coated with polytetraffuorethylene.  It is stated that uranium hexafluoride may be extracted by means of fluorine from a thorium oxide blanket used in a homogeneous nuclear reactor having a uranyl sulphate solution core.  Plutonium hexafluoride is stated to be prepared by passing fluorine over PuF, at 600 DEG C. and condensing the volatile reaction products in a trap cooled in liquid oxygen.
Patent GB-280636-A (GB)
Title: X-ray shields and process for making them
IPC: G21F1/12
Filed: 1926-08-17
Abstract: 280,636. Harth, P. E. Aug. 17, 1926. R÷ntgen-ray apparatus.-A material for producing shields opaque to R÷ntgen-rays consisting of barium sulphate and a binder is characterized in that the barium sulphate is finely divided and comprises 75 to 95 per cent of the material, and that the binder is a plastic one, for example pitch, phenol condensation products such as Bakelite, rubber, or polymerized china wood oil. The material may be formed in sheets which may be reinforced by embedding therein one or more sheets of fabric. It may be used for lining the walls of operating theatres &c., or may be moulded into any desired shape by the application of heat and pressure. Fig. 2 shows a Rontgen tube 2 encased in a shield 1 of such material, formed in known manner in two parts bolted together as at 3. and having a window for the passage of the rays. The fabric reinforcement is shown at 5. The Specification also refers to shields made from rubber and finely-divided metals such as bismuth and lead.
Patent GB-501498-A (GB)
Title: Improvements in and relating to driving gearing and steering for motor vehicles
IPC: B60K17/344
Filed: 1938-07-11
Abstract: 501,498. Motor-vehicle driving and steering gear. SOC. ANON. A. SAURER. July 11, 1938, No. 20549. Convention date, July 10, 1937. [Classes 79 (ii) and 79 (v)] In a vehicle in which normally the rear wheels only are driven, but in which a supplementary reduction gear-box may be used to drive both the front and the rear wheels, a single band-lever controls both the reduction gear and the front wheel drive so that.these are put in and out of action simultaneously. In cases where all the wheels are steered when the front wheels are driven the said hand lever also connects and disconnects the rear wheels to and from the steering gear. The engine and main gear-box (not shown) drive a shaft 9 leading to an auxiliary gear-box 8. In the position I of the hand lever 3, as shown, the drive passes from shaft 9 to the rear-wheel drive shaft 11 through, the gears 14, 15, 50. When the hand lever is moved to position II lever 6 and arm 12 on shaft 7 are rocked counterclockwise and slide the clutch 13 to the left to mesh gear 16 with 17, so that the drive from shaft 9 to the rear-wheel drive 11 is through the reduction gear 16, 17, 15, 50. Simultaneously the lever 6, through .a spring 18, rocks clutch arm 19 and couples the frontwheel drive shaft 10 to the shaft 11 through clutch 19<1>. The rod 5 which connects the handlever 3 to the lever 6 is also connected to an arm 20 on a front- and rear-wheel steering box 22, the front wheels being steered by levers 25 and the rear wheels by levers 26. In the position shown the front wheels only are steered but when the hand-lever is moved to position II the arm 20, through a spring 24, rocks an arm 23 and couples the levers 26 to the steering gear so that the rear wheels also are steered. The hand-lever may be locked in an intermediate position III, in which the drive shaft 9 is disconnected from both front and rear wheel drives, by means of a catch 46 controlled by a spring- loaded handle 47 and adapted to engage in a notch 49 in a fixed quadrant 39. In this posi- , tion of the hand lever 3 a power take-off shaft 28 may be driven from the shaft 9 through a clutch 27 controlled by a hand-lever 34 pivoted at 35 on the hand-lever 3 and connected to the clutch through linkage 33, 31, 30, 29. The clutch 27 can only be engaged when hand-lever 3 is in the neutral position III, since only in this position can a catch 38 connected by a link' 37 to the hand-lever 34 enter a notch 42 in the quadrant 39.
Patent GB-273520-A (GB)
Title: Improvements in latch bolts
IPC: E05C1/16
Filed: 1926-08-20
Abstract: 273,520. Parkes & Sons, Ltd., J., and Parkes, C. W. Aug. 20, 1926. Latches, sliding.-The tail B of a latch bolt has an, integral end C and is secured to the bolt head A after the spring E and washer F have been positioned. The tail B is screwed into the head A, or the head is distorted into a groove or indentation on the tail. To prevent the tail working loose and to provide a head of large diameter, two flats are formed on the end C. The tail passes through a fixed plate G and the end C is engaged by a flange H on a lever J operated by the follower K.
Patent GB-218866-A (GB)
Title: Improvements in or connected with starters or controllers for electric motors
IPC: H01H50/88
Filed: 1923-08-14
Abstract: 218,866. Electric Control, Ltd., and Ellefsen, O. Aug. 14, 1923. Controllers, actwating; controllers, multiple rocking-bar.- A starter or controller for electric motors consists of a number of contact makers B carried on a rocking shaft A which is directly actuated by the angularly-movable armature of an electromagnet C, the movement being restrained in one direction only by a dash-pot E. The contact-makers successively meet stationary contacts and may afterwards yield.
Patent GB-372627-A (GB)
Title: Improvements in insoles and method of making same
IPC: A43B17/12
Filed: 1931-07-20
Abstract: 372,627. Insoles for boots &c. PESCHKE, A., Hinterhermsdorf, Saxony, Germany. July 20, 1931, No. 20671. Convention date, July 18, 1930. [Class 17 (ii).] An insole for boots and shoes shown with some of the layers at the forepart partly removed comprises more than three very thin layers 11 .. 15 of wood with the grain of some crosswise to the others and bound round the edges with tape 4. The wood grain in the respective layers may cross at right-angles or any other angle, and coverings of plywood, paper, cardboard, felt, cloth, woven straw, hemp, reed, or other material may be placed on one or both sides of the insole. Transverse seams of stitching may connect the various layers of the insole together.
Patent GB-587795-A (GB)
Title: Improvements in or relating to laminated materials
IPC: H01B3/04
Filed: 1944-10-25
Abstract: Adhesive compositions comprise polytetrafluoroethylene and fillers or pigments, electrically conducting grains or flakes, glass or metal fibres.  Specified additions are oxides of titanium, lead, silicon and manganese, barium sulphate, magnesium carbonate, zinc sulphide, calcium chromate, barium titanate or other alkaline earth titanate, asbestos, powdered mica, fuller's earth, finely-divided aluminium, copper, silver, graphite and carbon.  The polymer may be modified by copolymerization with another polymerizable organic compound, e.g. ethylene, a vinyl compound, or a methacrylic acid ester, or by polymerizing in the presence of hydrocarbons and halogenated hydrocarbons, e.g. butane, isooctane, carbon tetrachloride and chloroform, as described in Specifications 583,482 and 583,874. Specifications 572,265, 574,688 and 584,851 also are referred to.
Patent GB-359005-A (GB)
Title: Improvements in and connected with preserving, packing, and treating foodstuffs
IPC: A23B4/06
Filed: 1930-07-09
Abstract: 359,005. Cooling meat, fish, &c. ZAROTSCHENZEFF, M. T., 324, Gray's Inn Road, London, and LIVERPOOL REFRIGERATION CO., Ltd., Colonial House, Water Street, Liverpool. July 9, 1930, No. 20738. [Class 29.] In the production of frozen packages of meat, fish, &c., the fish e.g. is inspected on the table 1, washed by water sprays, chlorinated if desired on the table 2, filleted and skinned on the tables 3, 4 respectively, subjected to brine sprays on table 5, and packed into cartons on the table 6, from which they are packed into openwork trays 8 which are stacked in cages 9 suspended from a rail 10 passing through the heat-insulated freezing-chamber 11 having cooling pipes 14. After passing through the chamber 11, the cartons are dried by jets of air on the table 16 and conveyed to the store 18. The initial treatment up to the freezing and the drying may be carried out at a temperature of from, e.g. 35-40‹ F., while the freezing may be effected by a brine fog produced by atomizing nozzles at a temperature of about - 5‹ F. The order and number of the initial operations may be varied. The package may consist of a container 20 and cover 25, Figs. 2 and 3, of waxed paper in which the fish &c. enclosed in a cellophane, Cetafoil or like wrapper 22, is packed. The joint between the container and its lid is sealed by a paper strip 26. Reference has been directed by the Comptroller to Specifications 292,457 and 311,247, [both in Class 29, Cooling &c.]
Patent GB-692871-A (GB)
Title: Improvements in or relating to the production of glass-to-metal seals
IPC: C03C27/04
Filed: 1950-08-22
Abstract: In making a glass to metal seal a light coating of cobalt or cobalt containing substance is applied to the surface of either the glass or the metal prior to sealing.  In making the seal the cobalt is oxidized to form cobalt oxide which is absorbed by the hot plastic glass.  The cobalt coating may be applied by electro-plating, metal spraying, or by dusting the surface to be coated with powdered cobalt oxide or other cobalt compound. Alternatively the cobalt compound may be sprayed on to the surface as a suspension, the liquid being dried off before the seal is made.  The coating may be applied to chromium iron alloys containing up to .2 per cent carbon, 10-30 per cent chromium and the balance iron.  The alloy may also contain one or more stabilizing elements such as titanium, niobium, tantalum, aluminium, molybdenum, vanadium and tungsten.  Specification 688,859 is referred to.
Patent GB-852020-A (GB)
Title: Safety guard for flat cooking surfaces
IPC: F24C15/36
Filed: 1958-06-30
Abstract: 852,020. Guards for cookers. WALLACE, T. A. Aug. 1, 1958 [June 30, 1958], No. 20814/58. Class 126. A guard for a cooker top comprises two side fences supported by uprights secured to bolts projecting from the sides of the cooker by wing nuts C, and a front fence hinged to the side fences by metal strips B folded round the end uprights of the fences. Each fence comprises three horizontal rails joined by uprights at the ends.