baber/WOPTO huggingface dataset:
Patent GB-388243-A (GB)
Title: Improvements in or relating to transmission mechanism
IPC: F16H57/10
Filed: 1932-04-20
Abstract: 388,243. Variable-speed gearing.. CHESWRIGHT, L. K., 85, Morningside Avenue, Swansea, Ontario, Canada. April 20, 1932, No. 11345. [Class 80 (ii).] Variable - speed gearing comprises aligned driving and driven shafts 1, 2 connected by an epicyclic train and manually controlled means for applying in succession and separately and by a continuous movement a variable braking resistance and a variable clutching effect. There are thus definite low and high speeds. and lower speeds by slipping. Planet gears. 4, 6 in a loose drum 3 mesh with sungears 5, 7 fast on the shafts 1, 2, respectively. A female cone 8 on the drum 3 is shown engaged by a cone 11 splined at 10 on the shaft 2, the gearing turning solid at high speed. A spider 28 splined at 16 to the drum 3 carries a friction. annulus 15 held clear of a non-rotary brake surface 12 by rollers 26 on elbow levers 25 which are engaged by the same spring 22 that holds the clutch 11 in engagement. The spring 22 abuts at one end against a collar 17 fixed by a pin 18 to the shaft 2 and at the other end against an inner flange 24 on a sleeve 23 which passes through the collar 17 and is secured to a loose shifter ring 19. When the ring 19 is moved to the right, the flange 24 compresses. the spring 22, releasing the clutch 11. At the same time, as the levers 25 yield, another spring 29 abutting the fixed collar 17 thrusts thespider 28 to the left so that the braking surfaces 15, 12 contact and the drum 3 is arrested and finally stopped, yielding varying geared drives. Continued movement of the ring 19 causes an outer flange 30 on the sleeve 23 to engage the spider 28 and separate the braking surfaces,. whereby the speed of the shaft 2 is reduced to zero. The brake surface 12 is supported on toggle links 13 held by springs 14 against abutments 14<1>, Fig. 3, so as to oppose movement in the direction of the arrow. When, to increase speed, the shifter 19 is moved to the left, the brake 12 becomes operative because the drum 3 tends to turn backwards in the direction of the arrow, Fig. 3. When the clutch 11 begins to act, the brake 12 does not oppose forward rotation of the drum 3, because the links 13 turn downwards of Fig. 3 so as to withdraw the surface 12 from the surface 15. Specification 388,245 is referred to.
Patent GB-569687-A (GB)
Title: Improved process for absorbing nitrogen oxides
IPC: C01B21/26
Filed: 1943-07-14
Abstract: 569,687. Nitric acid. KALOUS, M. J. July 14, 1943, No. 11456. [Class 1 (ii)] In absorbing nitrogen oxides contained in gases by passage under a pressure not exceeding nine atmospheres in progressive stages in contact with nitric acid of decreasing strength from, say 60 per cent to very weak acid or water, a temperature of between 40‹ C. and 100‹ C. is employed in one or more stages where the acid strength is not more than 40 per cent whilst in other stages in which the acid strength is not greater than 40 per cent, the temperature is below 40‹ C. The stages employing the higher and lower temperature may alternate.
Patent GB-783459-A (GB)
Title: Improvements in or relating to automatic feeding and ejecting devices for workpiecescapable of rolling
Inventor: KELLETT ERIC
IPC: B23Q7/10
Filed: 1955-04-21
Abstract: 783,459. Machine-tool details; work-holders. BIRMINGHAM SMALL ARMS CO., Ltd. March 13, 1956 [April 21, 1955], No. 11471/55. Class 83 (3). A device for feeding a workpiece to a holding means for an operation such as drilling, lapping, &c., and subsequently ejecting it therefrom, the means consisting of a pair of relatively movable jaws 1, 3, Fig. 1, comprises a feed-magazine 27 and a guide 17 pivoted at 13 to form, in one position, a continuation from the magazine to the means and, in another position, an ejection-shoot from the means. To feed a workpiece 43A to the jaws, the extension 5 of the jaw 1 is pressed to separate the jaws via pinion 7 engaging racks on the jaws, whereupon a pin 31 carried by jaw 1 and engaging a slot 11 in a member 51 attached by pin-and-slot connections to the guide, pivots the guide to the position shown in Fig. 4. A cam part 21 on the guide tilts a gate 23, pivoted at 45, to release the workpieces, which roll down the magazine so that the leading one 43A abuts the cam part. The pin is disengaged from the slot in the lowered position of the guide, which is restored to its first position by spring 13A, thus repositioning the gate 23 to hold the second workpiece and allow the first to roll into the guide. Extension 5 is then raised to close the jaws on to the workpiece, which is then machined. As the jaws are closed, the pin 31 slides member 51 against spring 15 as permitted by the pin-andslot connections until it snaps into slot 11. After the machining operation, the jaws are opened and the workpiece rolls along the guide and on to a runway 29.
Patent GB-989879-A (GB)
Title: Improvements relating to aircraft flight-control apparatus
Inventor: POWLEY MALLINSON
IPC: G01S13/935
Filed: 1958-04-10
Abstract: 989,879. Pulse radar. FERRANTI Ltd. April 8, 1959 [April 10, 1958], No. 11474/58. Heading H4D. In low-level profile flying the pilot of an aircraft is provided with a display superimposed on his forward field of vision formed of a series of horizontal parallel lines 51, 52, 53 the lengths of which are inversely proportional to the range of the zone they represent. As shown, the antenna 11 scans the region ahead between angles # 1  and # 2  in elevation. Pulses are applied to the Miller integrator 17 from the transmitter and receiver 15 and 16 to produce an output voltage V corresponding to the range or a given elevation angle of the antenna. Upon the transmission of a pulse, the anode voltage of valve 21 falls at a rate determined by V. The echo pulse at gate 18 together with the anode voltage of 21, cause the latter to deliver an error signal, at the suppressor grid of 21, such that V is proportional to the reciprocal of the target signal. V controls the amplitude of the X-plate deflection voltage of CRT 32. The Y-plate deflection voltage is stepped incrementally in accordance with # by the potentiometer 34. In an alternative form, not shown, the spacing between the lines is varied.
Patent GB-1205112-A (GB)
Title: A method of treating effluents containing paint materials
Inventor: PINNER ROBERT
IPC: C02F1/66
Filed: 1968-03-08
Abstract: 1,205,112. Treating painting process effluents. LANCY -LABORATORIES Ltd. 3 March, 1969 [8 March, 1968], No. 11567/68. Heading C1C. A process for the treatment of aqueous effluents obtained from the rinsing of electrodeposited paint films comprises the precipitation and removal by sedimentation or filtration of paint material by adding a first chemical and treating the remaining first chemical with a second chemical to form a substance which is chemically inert to the paint film. At least part of the treated water may be returned to the rinsing stage of the process. The first chemical may be an acid (or an alkali) which is subsequently removed by addition of a stoichiometrically equivalent amount of an alkali (or an acid). Mineral acids, e.g. hydrochloric acid, or organic acids may be used and preferred alkalis are sodium hydroxide and ammonium hydroxide.
Patent GB-453108-A (GB)
Title: Improvements in hair curling devices
IPC: A45D4/16
Filed: 1936-04-23
Abstract: 453,108. Hair - curling appliances. PRIMMER, K., Ring 13, Wels, and KRONER, F., 3, Klimschgasse, Vienna, both in Austria. April 23, 1936, No. 11627. Convention date, Oct. 24, 1935. [Class 131] The pre-heated insertable heating element 2 of a hair curler 1 located in a heat-insulating sleeve 5 is provided with a heat accumulator 3. The heat storing extension 3 which is of material having good heat conductivity, preferably a light metal, has a lug 4 to facilitate grasping by a pair of tongs. The sheath 5 is preferably double walled and exhausted as in vacuum flasks and the part 3 which is of considerably larger volume than the rod 2 gives up its heat partly by conduction through the rod and partly to the air in the sheath.
Patent GB-972301-A (GB)
Title: Improvements in and relating to dielectric sensing arrangements
IPC: G06K7/08
Filed: 1961-03-30
Abstract: 972, 301. Sensing statistical record cards. INTERNATIONAL BUSINESS MACHINES CORPORATION. March 30,1961 [April 2,1960], No. 11654/61. Heading G4M. In apparatus for sensing perforated record cards or cheques they are passed between capacitor plates supplied with alternating current which is modulated in amplitude as a punched hole passes between the plates owing to the change of dielectric constant, the amplitude modulation being detected to provide an output, A high frequency (between 10 and 100 megacycles per second) is used to minimise differences due to variations of thickness, moisture content and type of record and different sizes of holes. The circuit is shown in Fig. 3A, the H. F. oscillator 1 being connected to the upper plate 2<SP>1</SP> and the lower plate 2<SP>11</SP> being connected through an impedance 4 to earth. The signal across the sensing plates is rectified in two diodes 7 Fig. 5 and applied to a capacitor 8. The output is taken from terminals 9 and 10 for application to an emitter follower 13. The output from a transistor 13, indicating that a hole has been sensed, is applied to a Schmitt trigger consisting of transistors 18 and 19 the threshold amplitude being set by a circuit connected to sensing plates 2F which sense an unperforated part of the track. The capacitor 21F increases the time constant so as to give a substantially constant output, R1, Fig. 7A. As an extra refinement another pair of plates may be provided for sensing a further blank track, a voltage being derived proportional to the peak value of the noise signal. This is fed into the circuit connected to plates 2F to give a threshold level E1, Fig. 7A. The electrodes 32 Fig. 9 are shaped so that theyfit completely within the hole area 31 and within the space 30 between holes. The upper plates 2<SP>1</SP> are surrounded by earthed screens and the lower plates 2<SP>11</SP> are separated by a shield in the form of a suitably bent strip of thin sheet metal 33 Fig. 11. The plates 35 and the associated diodes 7 are assembled in a jig as shown and cast in position with a suitable resin. The lower face of the assembly is then ground off flush.
Patent GB-517307-A (GB)
Title: Manufacture of ketones of the cyclopentanopolyhydrophenanthrene series
IPC: C07J75/00
Filed: 1938-07-14
Abstract: 517,307. Cyclopentanophenanthrene ketones. SOC. OF CHEMICAL INDUSTRY IN BASLE. July 14, 1938, Nos. 11699/39, 11700/39, and 11701/39. Convention dates, July 14, 1937, June 9, 1938, and June 24, 1938. Divided out of 517,277. [Class 2 (iii)] Ketones of the cyclopentanopolyhydrophenanthrene series are obtained by reacting a compound of this series containing in the 17- position a carboxylic acid halide group or a side chain carrying a carboxylic acid halide group with a metal derivative of a compound of the formula x##CH-Z, where X represents a carbalkoxy, carboxylic amide or a nitrile group, Y represents an acyl, carbalkoxy, carboxylic amide or a nitrile group, and Z represents hydrogen or a hydrocarbon residue. Parent materials mentioned include saturated and unsaturated halide of aetio-cholenic acids such as 3-oxy-, 3-keto- and/or -17-oxy-aetiocholanic acids, 3-11-diketo- or 3-keto-11-oxy- and/or -17-oxy-aetio cholanic acids also corresponding compounds of the bisnorcholanic acid, cholane-17-acetic acid, norcholanic acid, or 3- carboxy-aetio-cholanic acid. The parent materials may in addition contain further substituents such as substituted or unsubstituted hydroxyl carbinol or cyclic keto groups and particularly such derivatives thereof such as enol esters and. enol ethers. Metal organic compounds specified include malonic acid esters, malonamide and malonitrile, analogous cyanacetic acid and acetoacetic acid derivatives and their substitution products and homologus containing for example alkali metals magnesium copper or aluminium. Instead of using an already prepared organic metal compound, the individual components of the compound may be used. The primary condensation products may, if desired, be saponified, subjected to ketone scission, acid scission and/or decarboxylated. In an example a benzene solution of #<4-5>-3 keto-aetiocholenic acid chloride is added to a suspension in alcohol of sodium malonic ester. The reaction solution is boiled under reflux the benzene removed, and the residue extracted with the ether to give #<4À5>-3-keto-pregnen-20- one-21-dicarboxylic acid ester. This is saponified with alcoholic alkali, extracted with ether and sublimed in vacuo to give pure #<4-5>- pregnene-3-ol-20-one. Instead of the acid chloride another acid halide may be used and instead of sodium malonic ester there may be used alkali compounds of malonitrile and malonamides or of derivatives of cyanoacetic acid and acetoacetic acid. Moreover, the 3-ketoaetio cholenic acid chloride may be replaced by an enol derivative such as the enol ester or the enol ether. The starting material may also be a 3-acyloxy aetio cholenic acid halide in which case Q <5>-<5>-pregnenol-(3)-one-(20) is analogously obtained.
Patent GB-983664-A (GB)
Title: Hydroxylamine derivatives and processes for making them
Inventor: DRAIN DAVID JOHN
Filed: 1962-03-28
Abstract: The invention comprises compounds of the general formula <FORM:0983664/C2/1> and their physiologically tolerable acid addition salts wherein X represents a halogen atom, Y1, Y2 and Y3 represent a methoxy group or Y1 and Y2 together represent a methylenedioxy group and m, n and p are each 0 or 1, and the preparation thereof either by reacting a compound of the general formula <FORM:0983664/C2/2> where Hal represents a halogen atom with an N-monoacyl or N,N-diacyl hydroxylamine and then hydrolysing to remove the acyl groups or (where m, n and p are zero) by reacting a compound of the general formula <FORM:0983664/C2/3> wherein R represents an alkyl or aryl radical and Q represents a monoacylated or diacylated amino group with an alkaline hydrolysing agent so as to remove selectively the -COR group, alkylating the free OH group and then hydrolysing off the acyl group or groups. Specification 977,071 is referred to.
Patent GB-1306294-A (GB)
IPC: H02P27/04
Filed: 1970-03-12
Abstract: 1306294 Control of AC motors GENERAL ELECTRIC CO 12 March 1970 [19 March 1969] 11849/70 Heading H2J [Also in Division H3] The invention relates to a speed tracking system involving one or more motors 33 and a source 10, 24 which may be the tachometer output of a master motor. The output of source 10, 24 is applied via a frequency multiplier 11 (see also Division H3) and an adjustable divider arrangement 12, 27 for frequency control of an element 30. The controlled output of element 30 is used to control the recurrence rate at which an inverter 71 converts a direct voltage obtained from rectifier arrangement 70, 77 for operating the motor 33.
Patent GB-415849-A (GB)
Title: Improvements in foot valves for fuel tanks
IPC: F16K27/07
Filed: 1933-04-24
Abstract: 415,849. Valves. THOMPSON BROS. (BILSTON), Ltd., and MEREDITH, J. W., Bilston, Staffordshire. April 24, 1933, No. 11951. [Class 135.] A foot valve assembly for a fuel tank comprises a lift valve member H mounted on a spindle J extending through a guide in a member D adapted to slide within, or align with, a housing or guide box A which carries, or is integral, with the valve seating a<2>. A tubular strut E surrounding the valve spindle forms an abutment for the loading spring K and is housed between a socket d<2> in the top of the member D and a similar socket f formed in a fitting F detachably secured to the top of the tank. The fitting F closes an aperture g<1> in the top of the tank large enough to permit the withdrawal of the member D and also houses a spring loaded vent valve. The valve spindle is in two parts connected by a nut having right and left handed threads, whereby the length of the spindle may be adjusted. Apertures are formed in the strut to give access to the adjusting nut and the member D and box A have apertures d3, a' to permit the egress of liquid. The valve member has a resilient packing washer h and is coupled to the spindle by a ball and socket connection. The top of the guide box is flared to facilitate the insertion of the member D or the member D may be arranged to slide over the guide box.
Patent GB-1307186-A (GB)
Title: Dough dividers
IPC: A21C5/00
Filed: 1971-04-28
Abstract: 1307186 Dough dividing P POOT 28 April 1971 [29 April 1970] 11963/71 Heading B5A In dough dividing apparatus, the dough from a hopper 1 is divided by blades 10 mounted on and projecting from a rotor 11, the blades being retracted into apertures in the rotor 11 after passage through a lubricating bath 15, and then moved to project from the rotor 11 again for further dividing action. The dough is fed from the hopper 1 by rollers 2 or an extruder (not further disclosed) into a chamber 22 defined by a removable partition 19. The pressure on the dough forces the rotor 11 to rotate in bearing blocks 12; the blocks are adjustable vertically by a set-screw 4 to alter the quantity of dough divided by the blades 10. The blades 10 are guided for projection and retraction by abutments 9 engaging grooves 8 in the apparatus housing. Dough and oil are scraped from the rotor 11 by blades 14, 17, respectively. The hopper 1 and rollers 2 are pivotable about a shaft 20. Specification 245,926 is referred to.
Patent GB-1456871-A (GB)
Title: Sealing glass objects
IPC: C03B23/20
Filed: 1974-03-18
Abstract: 1456871 Sealing glass to glass PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 18 March 1974 [19 March 1973] 11972/74 Heading C1M Two glass objects which have been brought together to form a seal joint are sealed by means of an electric current supplied to a plurality of electrodes 13, 14, 15, 16, 17, 18, 19, 20 which are in mechanical contact with the joint. Current is supplied to the electrodes by at least two circuits I, II each circuit having at least two similar transformers Ia, Ib and IIa, IIb the primary windings of which are connected in series. The circuits are energized alternately and are arranged such that successive electrodes in each circuit have potentials of opposite sign applied thereto. The method is described in connection with sealing a faceplate of a cathoderay tube to the funnel portion.
Patent GB-652352-A (GB)
Title: Improvements in or relating to hoisting apparatus
IPC: B66F9/06
Filed: 1946-04-18
Abstract: 652,352. Hoist for vehicles. MEDLER, L. J. April 18, 1946, No. 12077. [Classes 78 (iii) and 78 (iv)] A hoist comprises a base member 5 (Fig. 4) carrying a collapsible guideway 8 and movable to a loading location ; means 20 for adjusting the guideway to a desired hoisting position, conveying abutment means 22 to convey the load along the guideway, the latter being constructed so as to directly support part of the load, the base member being adopted to slide in fixed horizontal guides between stored and a working position. In the embodiment, the guideway consists of a long metal trough with stiff side ribs 9 and is pivoted to the base by studs 14 (Fig. 7), which have heads 15 within the ribs 9 and which are tightened by handle 16. Slots 9a permit the guideway to be adjusted for length. The top end of the guideway rests against the window through which sacks are to be delivered from the truck and the bottom end is supported by struts 20 (Fig. 4), engaging racks 21. Winch drum 25 drives rope 24 which passes through a hole near the bottom of the guideway and round a pulley at the top and, by means of the attached pusher plate 22, pushes up a sack so as to drop it on the (pivoted) end wall 19. The guideway rotates on turntable 12 (Fig. 2), which forms part of baseplate 5. The latter is supported in three-sided channel member 28 on jack-actuated parallel links 27 (Fig. 4), which form part of sliding channel members 26. When not in use the links fold flat ; and the guideway, also folded flat, together with channel member 28 slides along guides so as to be contained within the truck beneath floor 1. Prime mover may be electric motor or compressed air motor.
Patent GB-219648-A (GB)
Title: Improvements in combined gas heating and cooking stoves
IPC: F24C3/08
Filed: 1924-05-16
Abstract: 219,648. Cuvelier, A. July 25, 1923, [Convention date]. Gas cooKing and heating stoves; heat reflectors; dampers. - A gas cooking-stove convertible into a heating stove comprises a jacketed space around the oven containing a burner 4 and having a part 1 of the outer wall in front of the burner movable, so that the burner may be exposed and a sheet 7 of asbestos or other refractory material placed between it and the oven. In the construction shown, the sides 1 of the outer casing are hinged at their upper edges and retained in the raised position by rack bars 8 or 10. The burners extend upwards in front of the asbestos and may be substantially T-shaped, as shown, or of U-form having the vertical limbs perforated. The gases leave the jacket through a damper-controlled outlet 11 leading to the flue, there being 'also an outlet 14 in the top of the stove which is controlled by a cap 15 having a screwed stem 16.
Patent GB-1188212-A (GB)
Title: Fluorine-Containing Silanes and Siloxanes
Inventor: ROBINSON THOMAS ALEXANDER
IPC: C07F7/18
Filed: 1967-03-15
Abstract: 1,188,212. Fluoro - amido - silanes and siloxanes. IMPERIAL CHEMICAL INDUSTRIES Ltd. 7 March, 1968 [15 March, 1967], No. 12173/67. Headings C3S and C3T. [Also in Division D1] The invention comprises fluorine-containing silanes and siloxanes, the silanes having the formula where Y is H, Cl or F attached to the terminal carbon of R # , R #  is a perfluoroalkylene group, R is H or alkyl, R<SP>1</SP> is a divalent hydrocarbon group free from aliphatic unsaturation, R<SP>11</SP> is a hydrolysable group, R<SP>111</SP> is a hydrocarbyl or hydrolysable group and R<SP>1V</SP> is a hydrocarbyl group, and the siloxanes being the hydrolysis products of these silanes. The hydrolysable groups may be halogen, alkoxy or acyloxy but hydrogen is excluded. The compounds may be prepared by (1) reacting a hydrogenosilane with an N-alkenyl amide of a perfluoroalkyl carboxylic acid, or (2) reacting an alkyl ester of a perfluorocarboxylic acid with an aminoalkyl silicon compound. The siloxanes may also be prepared by hydrolysis of the silanes, alone or with other silanes. Uses.-Treatment of textiles, glass and masonry; anti-foam agents in organic solvent systems.