baber/WOPTO huggingface dataset:
Patent GB-701740-A (GB)
Title: Adjustable lead control for screw threading machines
Inventor: DRISSNER ALFRED ERNST
IPC: B23G1/04
Filed: 1953-02-13
Abstract: 701,740. Screw-cutting. NATIONAL ACME CO. Feb. 13, 1953, No. 4138/53. Class 83 (3) An adjustable lead-control for the tap-or-die spindle slide 13 of an automatic screw-cutting machine comprises a cam 15 on a shaft 16, a cam lever 18 pivoted on the machine frame at 25 and carrying a cam engagement-member 26, a slide lever 17 pivoted on the frame 20, and a bolt 19 which interconnects the two levers, the bolt sliding between surfaces 27 on the cam lever and being rigidly connected to the slide lever by a serrated washer 29 engaging serrations 35 at the sides of a slot 28 in the slide lever. The washer has rack teeth 36 so that the bolt can be adjusted in the slot by a gear wheel on a handle inserted in one of several holes 37 ; graduations are provided on one edge of the slot. The lever 17 engages the slide 13 by a roller 21 sliding in a slot 24. A second cam 115 on the shaft 16 and a second lead control 110 is provided on the other side of the machine. The cam travel provides both the feed of the tool to the work and the feed during threading. Specification 410,135 is referred to.
Patent GB-974947-A (GB)
Title: An improved method of rolling round material, particularly wire
IPC: B21B1/18
Filed: 1962-02-02
Abstract: 974,947. Rolling. SCHLOEMANN A.G. Feb. 2, 1962 [Feb. 3, 1961; May 23, 1961], No. 4180/62. Heading B3M. Round material, such as wire, is rolled from square billets in exclusively oval passes 13 having adjustable roll gaps 15, the material being under tension during rolling. Consecutive stands are horizontal or alternatively horizontal and vertical with interstand twisting guides. The use of oval passes is said to obviate the formation of cracks and surface defects in the material.
Patent GB-879160-A (GB)
Title: Improvements relating to storage hoppers
Inventor: SIMPSON HUGH ANTHONY
IPC: B65G69/00
Filed: 1959-02-06
Abstract: 879,160. Overhead structures for filling storage chambers. CHARROLD Ltd. Feb. 5, 1960 [Feb. 6, 1959], No. 4213/59. Class 78 (4). An endless conveyer 8 for loading a bunker 1 with material such as solid fuel can be lowered into the bunker and gradually raised as the bunker fills, in order to avoid breakage of the fuel caused by its falling through a great height. The bunker may be divided lengthwise by compartments and the conveyer 8 may be carried by a trolley moving along the compartments, the conveyer being raised to clear the partitions. The conveyer 8 may be carried on the end of a bodily movable belt conveyer or, as shown, may be carried on a tripper carriage 5 which can be disposed to discharge from any point on a belt 2.
Patent GB-587667-A (GB)
Title: Improvements relating to load measuring devices
IPC: G01L1/02
Filed: 1943-03-15
Abstract: 587,667. Dynamometers ; pressure gauges. POWER JETS, Ltd., and FIELDEN, G. B. R. March 15, 1943, No. 4233. [Class 106 (ii)] Apparatus for measuring a load, such as the thrust of an aero-engine, torque or weight, comprises a movable load-transmitting wall 2 forming part of a hydraulic pressure chamber 3, valve means 16 to control escape of fluid from the chamber in response to movement of the wall, means for maintaining a supply of fluid under pressure into the chamber and means for indicating the fluid pressure in the chamber. The load to be measured is applied by equally tensed cables to the wall 2 which is connected by a fabric annulus 2D to a fixed plate 4. The chamber 3 communicates with a pressure gauge 9A and is continuously fed with pressure fluid by a pump 8A. The chamber, via a pipe 11, feeds a variable-leak valve- 14, Fig. 3, urged more or less towards closed position through a multiplying lever 19 as the movable wall 2 is urged more or less by the load to be measured. According to the very slight adjustment of the valve 14, the pressure in the chamber 3 builds up or subsides to give an indication of the load on the pressure gauge 9A. An initial load comprising springs 21 and 19B renders the pressure gauge alive even under no external load. The weight of the wall 2 is supported from a fixed plate 6 by a wire 7. The movement of the wall is very small and is limited by stops 5A, 5B which may constitute electric contacts to give warning should the plate 2 move from floating position. The leaking fluid is returned to a reservoir by a pipe 16A, while air can be vented through a pipe 16B.
Patent GB-841921-A (GB)
Title: 2-piperonyl-propanal, a new perfume, and process for making same
Inventor: BEETS MUUS GERRIT JAN
IPC: C07D317/54
Filed: 1958-02-11
Abstract: The invention comprises 2-piperonyl-propanal of formula (I) <FORM:0841921/IV(b)/1> It may be prepared by any of the following methods: (1) iso-safrole is reacted with formaldehyde and the product subjected to hydro-genolysis to give 2-piperonyl-propanal-1 which is oxidised or catalytically dehydrogenated to give the required aldehyde in accordance with the following: <FORM:0841921/IV(b)/2> --> 2-piperonyl-propanal; (2) 2-piperonylidene-propanal, which may be obtained by the alkali-catalysed condensation of piperonal with propionic aldehyde, may may be converted, e.g. by the acid-catalysed reaction with an alcohol, a glycol or an alkylorthoformate, into the corresponding acetal, the double bond is hydrogenated catalytically and the required aldehyde is obtained by acid hydrolysis of the saturated acetal; the reaction proceeds as follows:- <FORM:0841921/IV(b)/3> ? corresponding saturated acetal --> 2-piperionyl-propanal, R in (a) being alkyl and in (b)H or alkyl; and (3) 2-methyl-3-(31.41-methyl-enedioxyphenyl)-propionic acid, which may be obtained by the Perkin reaction or by the condensation of a malonic ester or malonic acid with piperonal followed by hydrogenation, may be converted to the acid chloride or a thio-ester and catalytically reduced to give the required aldehyde.  The preferred method of preparation is by the partial catalytic hydrogenation of 2-piperonylidene-propanal.  Some of the corresponding saturated and unsaturated alcohols are obtained as by-products.  The catalytic hydrogenation is preferably carried at in the presence of Raney nickel and in an inert solvent e.g. an alcohol, ester, dioxane, or ether.  The 2-piperonyl-propanal may be used in perfume compositions (see Group VI).ALSO:<FORM:0841921/VI/1> A new compound 2-piperonyl-propanal of formula (I) is a perfume and may be used in perfume compositions and in soaps, cosmetics, powders and aerosol products.  Examples are given of perfume compositions containing in addition to the compound specified above (a) hydroxycitronellal, linalool, linalyl acetate, a -ionone, geraniol, phenyl ethyl alcohol, musk ketone, amyl cinnamic aldehyde, benzyl acetate and terpiniol; (b) amyl cinnamic aldehyde, benzyl acetate, linalool, linalyl acetate, hydroxy citronellal, heliotropin and phenyl ethyl alcohol: and (c) geranoil rhodinol, phenyl ethyl alcohol, hydroxy citronellal, a -ionone, geranylacetate and undecylenic aldehyde.
Patent GB-274026-A (GB)
Title: Incandescent cathode rectifiers
IPC: H01J17/04
Filed: 1927-02-16
Abstract: 274,026. Meyer, F., Spanner, H. J., and Wedel, C. von. July 10, 1926, [Convention date]. Drawings to Specification. Vacuum-tubes.-An incandescent-cathode gasfilled rectifier is arranged with a part of the cathode or a member connected thereto spaced from the anode at a distance equal to the mean free path of the gas at the working pressure. The anode may consist of strips spaced from protecting screens or of a thin rod surrounded by a metal cylinder, the screens and cylinder being connected with the cathode. In another arrangement a number of anodes project through holes in a metal plate connected with the cathode. The container may be of metal or may be coated internally with metal which is connected with the cathode.
Patent GB-745985-A (GB)
Title: Improvements in and relating to log cutting saws
IPC: B23Q15/00
Filed: 1954-02-15
Abstract: 745,985. Control of motors. ETABLISSEMENT GUILLIET COMMERGNAT-GUILLIET ET CIE. Feb. 15, 1954 [Nov. 4, 1953], No. 4432/54. Class 38(3) [Also in Group XXIII] A device for controlling the transverse feed of the log-holding claws of a saw comprises a rotatable arm 27 which is set according to the amount of feed required and, when the feed motor 13 is started, the arm is connected to a disc 18 rotated by the motor and is moved in 'the direction of the arrow F until it operates a motor stop switch 35 mounted on a stationary bridge 19. The arm, which is rotatably mounted on an extension 26- of a shaft 17, is loaded by a spring 28 to bear against a handle 25 on an annular scale 23 marked in millimetres and is set by rotating the scale until the required feed distance is indicated on the scale by a pointer 24, the scale then being clamped by a screw 31. The motor start switch 44 is operated by pressing in a lever 41 which at its other end. raises a collar 39 on the extension 26 so that a collar 38 on a resilient lever 37 is also raised to pivot the lever about an axis 36 and engage a screw 47 (not shown) on a downward extension of the lever with the disc 18, which is fixed on the shaft 17, thus. connecting the arm 27 to the disc; a spring-loaded latch 48 slides under the lever 37 and maintains it in the raised position. The shaft 17 is connected by gearing 16 and by a pair of selsyn synchronous motors 11, 12 to the feed motor so as to rotate proportionally to the feed motor and it carries the arm 27 with it until the arm operates the switch 35 to stop the motor and the latch 48 is disengaged by a stop 52, thus releasing the arm so that it returns under the action of the spring 28 until it meets the handle 25. The disc has graduations, which are distributed over three circles and correspond to centimetres of transverse feed and, as it does not return with the' arm 27, it integrates . the feed movements in cooperation with a pointer 22. The feed 'motor is provided with an electromagnetic brake 14 and its push switch 44 may be operated independently of the control device bv a lever 45. The levers 37 and 41 may have return springs and to increase the resiliency afforded by the lever 37, a spring may be fitted to the screw 47 (not shown) that engages the disc 18.
Patent GB-934525-A (GB)
Title: Web-winding machines including adhesive-applying mechanism
IPC: B65H19/29
Filed: 1962-02-06
Abstract: 934,525. Winding webs. CAMERON MACHINE CO. Feb. 6, 1962 [March 1, 1961], No. 4506/62. Class 100 (1). In a web-winding machine, as described in Specification 898,386, the adhesive applying brush 106 of the above Specification is replaced by a container 34 supported by the pair of load arms 16 for automatically applying adhesive to the trailing end of web material which has been wound upon the rewind core F14 supported by the pair of pivotal unload arms 22. The container 34, Fig. 2, is preferably half-filled during operation with liquid adhesive, which is applied to the web by wicks 38 having suitable absorbing and capillary characteristics. A port 40 is employed for filling the container, and may be plugged during operation or connected to a source of supply (not illustrated) by a flexible tube 44.
Patent GB-556668-A (GB)
Title: Improvements in and relating to diamond tools for dressing, abrasive, polishing or like work, and to the manufacture thereof
IPC: B24D18/00
Filed: 1942-04-07
Abstract: 556,668. Ball mills; grinding surfaces. JEARUM, F. C. April 7, 1942, No. 4550. [Class 59] [Also in Groups XXIII and V] Crushing rollers or discs are formed by impregnating hard metallic particles with diamond particles or dust by pressure or impact and mounting or embodying such particles in a malleable metal or alloy or a plastic material by moulding under pressure with or without heat. The impregnation may be effected in a ball mill either hard tungsten or tungsten carbide balls being used or the balls being replaced by diamond masses of from 2 to 3 carats weight with or without a proportion of loose diamond dust, a suitable proportion being 30 parts diamond masses to 60 parts tungsten or tungsten carbide particles. After treatment, the diamond-impregnated particles are separated from the diamond masses and mixed with about 30 per cent. of a powdered malleable or bonding metal such as silver, a mixture of silver and iron, or the metal sold under the Registered Trade Mark "Invar." The mixture is then inserted into suitably shaped moulds or dies, preferably of molybdenum or chrome molybdenum, and subjected to a pressure of the order of 100 tons per square inch. Alternatively, the hard metallic particles, the diamond masses, and a soft malleable metal in powdered form may be introduced together into the ball mill and the diamond impregnated material so obtained may be moulded under pressure. The moulding operation may be carried out under heat, a suitable bond which will flux below 700‹C. being chosen so as not to harm the diamond particles. Instead of tungsten the hard metallic particles may be of molybdenum, molybdenum carbide, chromium, cobalt. titanium carbide, nickel-cobalt alloy or any hard steel alloy and the bonding material may be copper, copper and iron, copper and silver or other metal or alloy capable of flowing under pressure.
Patent GB-797961-A (GB)
Title: Improvements in or relating to the manufacture of nitrofuran derivatives
IPC: C07D307/71
Filed: 1956-02-14
Abstract: 5-Nitrofuran derivatives are prepared by reacting a furan derivative having an unsubstituted 5-position with concentrated or fuming nitric acid in the presence of acetic anhydride and not more than 3 per cent by weight based on the acetic anhydride of an acid-reacting compound containing the group =SO or =SO2, the reaction mixture being cooled during the nitration.  The reaction is preferably cooled to and maintained at a temperature not exceeding 30 DEG  C., e.g. by adding solid carbon dioxide to the reaction mixture.  At the conclusion of the nitration a basic substance may be added, with cooling, to the reaction mixture, the latter then being heated to a temperature not exceeding 60 DEG  C. and, if desired, subsequently cooled. Exemplified catalysts are sulphuric acid, sulphaminic acid, paratoluene sulphonic acid, b -naphthyl sulphonic acid, paratoluene sulphonic acid chloride, chlorosulphonic acid, thionyl chloride, dimethyl sulphate and sulphuryl chloride.  From 0.1 to 0.03 per cent by weight of catalyst based on the acetic anhydride is preferred. The examples describe the conversion of furfuraldehyde and furfural diacetate to 5-nitrofurfural diacetate and the conversion of furfuryl-2-propionate and the methyl ester of furan-2-carboxylic acid to the corresponding 5-nitro compounds.
Patent GB-500083-A (GB)
Title: Improved package and process for making the same
IPC: B65B31/00
Filed: 1938-02-15
Abstract: 500,083. Preserving ground coffee, oatmeal, and other powdery foods. BELL, J. W. Feb. 15, 1938, No..4618. [Class 49] [Also in Group XVII] Cround coffee, oatmeal or other food of a powdery nature is compressed at least to one half of its normal volume and is inserted in a tubular container 20 of cellulose material to form a hard solid package closed by a metal cap 24. In use, the consumer cuts off a length. and replaces the cap on the shortened package. The coffee is compressed by rams in a mould box exhausted of air and is expelled from the mould bv a further set of rams into the containers.
Patent GB-796130-A (GB)
Title: Polyalkylindanes and process for manufacturing the same
IPC: C07C2/42
Filed: 1954-10-11
Abstract: The invention comprises polyalkyl indanes in which 3 to 6 of the hydrogen atoms of the cyclopentane ring are substituted by alkyl groups containing 1 to 3 carbon atoms.  These compounds may be prepared by resetting a styrene hydrocarbon with an alkene at 10-30 DEG  C. in the presence of a catalyst such as sulphuric acid of 80-95 per cent strength, mixed anhydrous acetic acid and sulphuric acid, or boron trifluoride etherate.  Specified compounds are: 1,2,3,3,5-pentamethyl indane, 1,1,3,3,5 - pentamethyl indane, 1,1,3,5 - tetramethyl-3-ethyl indane, 1,1,5-trimethyl-3,3-diethyl indane, 1,1,3,3-tetramethyl-5-ethyl indane, 1,1,2,3,3,5-hexamethyl indane, 1,1,2,3,5-pentamethyl-3-ethyl indane, 1,1,2,3,3-pentamethyl - 5 - ethyl indane, 1,1,3,3,5 - pentamethyl - 2 - ethyl indane, 1,1,2,2,3,3,5 - heptamethyl indane, a mixture of 1,1,2,2,3,5-hexamethyl-3-ethyl indane and 1,1,2,3,3,5-hexamethyl-2-ethyl indane, 1,1,2,2,3,3-hexamethyl-5-ethyl indane, 1,1,3,5-tetramethyl 3-isopropyl indane, and 1,1,2,3,3-pentamethyl indane.  The styrenes may be a -methylstyrene, p-methylstyrene, p-a -dimethylstyrene, o-a -dimethylstyrene, m-a -dimethylstyrene, p-ethyl-a -methylstyrene, p-n-propyl-a -methylstyrene, and p-isopropyl-a -methylstyrene.  The alkenes may be isobutene, 2-methyl-butene-1, trimethylethene, tetramethylethene, 2,3-dimethylbutene-1, trimethylethylene and tert.-butylethene. These compounds may be used as intermediates in the manufacture of carbonyl derivatives as described in Specification 796,129.
Patent GB-247970-A (GB)
Title: Method of and apparatus for welding a closure member onto a container
IPC: B23K5/00
Filed: 1926-02-18
Abstract: 247,970. Products Protection Corporation, (Assignees of Smith, F. S.). Feb. 21, 1925, [Convention date]. Hollow-ware. - Closures are welded to containers by replacing the air content of the container with an inert gas or fluid non-oxidizing agent and then welding in the presence of such gas &c. The container may consist of a transformer casing or tank, subsequently to be filled with a gaseous dielectric under high pressure, to which the closure is thus welded without the danger of magnetic oxide scale lodging on the transformer windings. After the transformer is placed in the tank 10, the closure 12 is arrested so as to rest on the bars 11, which hold the core. Nitrogen or other inert gas is then supplied to the tank from a flask 18 through a hand-controlled valve 20 at a pressure greater than atmospheric pressure. When the air has been displaced from the tank through the space between the tank and closure, the upper end 10<a> of the tank is heated by a blowpipe 17 and hammered over the closure as at 16 to form a mechanical joint. As bending proceeds the leakage is reduced and the gas pressure is reduced by operating the valve 20. Welding is then performed in a similar manner by the blowpipe, the pressure being reduced as welding proceeds. The tank below the joint is cooled by a water jet from a nozzle 34. In order to expedite the operation of filling the tank with inert gas, the inlet pipe 27 may be connected through hand-operated valves 29. 31 respectively with the flask 18 and with a pump 32 driven by a motor 33. A cap 22 with a flange 24 is placed with its recessed or bevelled lower end over the end of the tank and is held in position by a rubber member 25, which seals the end of the tank. The valves 31, 29 are alternatively opened and closed several times so as to exhaust the tank of air and finally fill it with inert gas. The cap is then removed and welding carried on as previously described.
Patent GB-748213-A (GB)
Title: Fractionation treatment of heterogeneous aggregates other than clay
Inventor: ROWLAND BEN WRIGHT
IPC: B03D1/001
Filed: 1952-02-25
Abstract: The process of the parent Specification, having a hydrophilic colloidal material as selective flocculating agent, is applied to mixtures of two or more solid fine particle components, each susceptible of deflocculation, other than clay, e.g. to the fractionation of ochres and raw umbers.ALSO:The process of the parent Specification, using a hydrophilic colliodal material as selective flocculating agent, is applied to mixtures of two or more solid fine particle components, each susceptible of deflocculation, other than clay, e.g. to the fractionation of ochres and raw umbers.
Patent GB-604199-A (GB)
Title: Improvements in or relating to apparatus for discharging fluids under pressure
IPC: A62C13/00
Filed: 1945-02-27
Abstract: 604,199. Fire-extinguishers. NATIONAL FIRE PROTECTION CO., Ltd., PRYKE, D., and WINN, R. C. Feb. 27, 1945, No. 4887. [Class 47 (ii)] [Also in Group XXVIII] In fire-extinguishing apparatus in which a fluid container B is closed by a sealing disc B' adapted to be pierced by a hollow punch, the punch C having an inclined cutting edge C<SP>1</SP> at one end is open at the other end so as to act as part of the discharge passage for the fluid. To assist discharge, lateral openings F<SP>3</SP> are provided. The punch is urged towards the disc B<SP>1</SP> by a spring D and is normally held retracted by a pin E controlled by a lever E<SP>1</SP>.
Patent GB-113035-A (GB)
Title: Improvements in the Manufacture of Oil Gas Lamps.
Inventor: BATES ALFRED
IPC: F23D11/44
Filed: 1917-04-05
Abstract: 113,035. Bates, A. April 5, 1917. Vaporizing-apparatus. - In an atmospheric vapour lamp, the vaporizer comprises two shells d, e, one fitting over the other, and the oil supply is filtered and controlled by a device comprising two tubes a, b with closed upper ends, one a sliding fit over the other, the inner one being provided with a small hole g near its upper end. The oil passes from the supply channel h through the space between the tubes a, b. A knife edge on the lower end of the outer tube prevents the accumulation of solids at that point, but these may be removed from the bottom of the channel h after unscrewing the coupling nut i.
Patent GB-509339-A (GB)
Title: Coin freed vending machines
IPC: G07F5/08
Filed: 1938-02-17
Abstract: 509,339. Coin-freed article-delivery apparatus. PARNALL & SONS, Ltd. (Wistoft, S.). Feb. 17, 1938, No. 4899. [Class 27] In a coin-freed machine in which differently priced articles, e.g. penny and two-penny articles are delivered by a number of drawers associated with a common releasing mechanism, the drawer containing a penny article, when pulled out, actuates a mechanism to release the tooth or detent of the release mechanism which is not positively actuated by a coin. When a drawer 7 or 8, Figs. 1 and 5, is pulled out, it rocks a bell-crank lever 9, 11 to raise a bar 12 which is normally locked by teeth 13, 14, Fig. 3, engaging a step 12a on the bar. The teeth 13, 14 are integral with two coin containers 15, 16 pivoted at 24 about which point a release arm 17 is also pivoted. The arm 17 has a lug 17a extending across both containers through a slot 16a to engage the coins therein which rest on a second lug 17b. When the bar 12 is raised, a pin 12b thereon engages an incline 17c on the arm 17 and rocks this arm to cause it to release the teeth 13, 14 by acting through the coins on the coin containers. In the case of a drawer 7 containing a two-penny article, two pennies are inserted to effect the release. When a penny article from a drawer 8 is required, a penny is inserted in one of the containers 15, the other container 16 being connected by links 22, 21 to a shaft 20 having an arm 19 which is rocked by a projection 18 on the drawer. The act of pulling out the drawer 8, through this linkage, releases the detent 14, the other detent being released by the coin. In a modification, a single container to receive coins edge to edge is provided, the upper coin acting on a separate pivoted detent. This detent is also controlled by linkage from the penny drawer. Specification 372,887 is referred to.
Patent GB-1174381-A (GB)
Title: Improvements in or relating to Wall Brackets.
Inventor: WHITE RODNEY JOHN
IPC: F16L3/12
Filed: 1968-01-31
Abstract: 1,174,381. Brackets. BARKING BRASSWARE CO. Ltd. Jan., 1968, No. 4948/68. Heading A4B. A wall bracket comprises a cylindrical, plastics, first part 1 with a closed outer end 2 and a transverse aperture 3 to receive and support a pipe, rod or tube 4 as a push fit, this first part 1 being internally threaded, at 8, for releasable engagement with a cup-shaped, metal, second part 7 having a base 10 with an aperture 9 to receive a fixing screw 11. A cover sleeve 13 has an end flange 14 which is clamped between the base 10 and the wall 12.