baber/WOPTO huggingface dataset:
Patent GB-873123-A (GB)
Title: N,n-substituted phenylenediamines, and vulcanized rubber containing same
IPC: C08K5/18
Filed: 1959-06-23
Abstract: A method of inhibiting ozone deterioration of crude rubber products comprises incorporating in an unvulcanized, vulcanizable rubber composition a compound of the formula: <FORM:0873123/IV (a)/1> in which R is an alkyl or cycloalkyl radical, R1 is a hydroxyalkyl radical and R2 is hydrogen or a hydroxyalkyl radical and curing the resultant composition.  The anti-ozonant may be used in natural and synthetic rubbers, preferably in an amount of 2%-3%.  Compositions are described based on butadiene/styrene copolymer or on smoked sheets and containing various compounds of the above formula as anti-ozonant as well as an anti-oxidant and other conventional rubber additives.  The results of dynamic ozone tests and of tensile tests on the rubbers are given.ALSO:The invention comprises compounds of the formula <FORM:0873123/IV (b)/1> where R is an alkyl or cycloalkyl radical, R1 is a hydroxy-alkyl radical and R2 is hydrogen or a hydroxy alkyl radical.  The compounds may be used as rubber anti-ozonants and may be prepared by reacting a di-alkyl p-phenylene diamine with an olefin oxide at an elevated temperature.  Examples describe the preparation of the N-2-hydroxyethyl derivatives of N,N1-di-isopropyl-, N,N1-di-sec.butyl-, N,N1-di-sec.octyl-, N,N1-di-3-(5-methylheptyl)-and N,N1-di-cyclohexyl-p-phenylene diamine, the N,N1-bis-(2-hydroxyethyl) derivatives of N,N1-di-isopropyl and N,N1-di-cyclohexyl-p-phenylene diamine and of N-2-hydroxypropyl-N,N1-di-isopropyl and N,N1-di-sec.butyl-p-phenylene diamine.
Patent GB-841706-A (GB)
Title: Means for automatically controlling a vehicle variable-speed power transmission mechanism
Inventor: ROBERTS MALDWYN HUGH
IPC: F16H61/00
Filed: 1957-07-08
Abstract: 841,706. Transistor relay circuits. LUCAS (INDUSTRIES) Ltd., J. Oct. 1, 1958 [July 8, 1957], No. 21503/57. Class 40(6). [Also in Group XXIV] The overdrive or other electrically controlled change-speed gear of a motor-car is controlled in dependence of engine speed by electrical impulses applied from the primary coil i of the usual ignition circuit, having a contact breaker b and spark reducing condenser c, through a smoothing inductance h to a clipping diode dl and a condenser cl. A pumping diode circuit, having diodes d2, d3 and a condenser c2, is fed with the impulses and is connected through a resistance rl and a potentiometer resistance r2 to the negative side of the circuit; the pumping diode circuit is also connected to the base terminal of a transistor t. A relay coil cr is fed by the transistor t and controls, either indirectly as shown, or directly, Fig. 1 (not shown), a switch sr1 in the circuit of a solenoid s energized to establish the overdrive or other ratio. The arrangement is such that, with the motor-car stationary and the engine switched off, the switch srl is closed by a spring. On starting the car engine, the relay coil cr is energized and opens the switch srl to deenergize the solenoid s and establish direct drive. As the speed of the engine increases, impulses fed through the pumping diode circuit d2, d3 change the base voltage of the transistor t, so that the relay cr becomes de-energized, and the switch srl closes to energize the solenoid s and establish overdrive. The relay cr acts upon a switch sr2 which, when the relay coil is energized, moves to the dotted position shown, and holds the relay coil cr1 de-energized. On increasing engine speed, the relay cr becomes de-energized and the switch sr2 is restored to the position shown, current then passing through a switch 3, a resistance r3 and the relay cr1 to a switch 5 and the switch sr2. The relay cr1 then closes the switch sr1, to establish the overdrive ratio.
Patent GB-276831-A (GB)
Title: Improvements relating to baking ovens
IPC: A21B1/46
Filed: 1926-09-01
Abstract: 276,831. Baker Perkins, Ltd, , and Pointon, J. E. Sept. 1, 1926. Bakers' ovens.-In a bakers' oven having a circuitously arranged conveyer a, doors b, c are provided so that from the one position outside the oven goods can be placed upon or removed from the conveyer at different. points in its course. As shown, the doors are fitted in a re-entrant angle of the end wall, and give access to trays passing over the adjacent guide wheels m. By this arrangement goods requiring differing periods or condition of baking can be passed through the oven simultaneously.
Patent GB-828960-A (GB)
Title: Process for the production of a polyvitamin preparation
IPC: A61K31/16
Filed: 1957-07-08
Abstract: A process for the production of a hydrodispersible polyvitamin preparation containing at least one liposoluble and at least one hydrosoluble vitamin is characterized in that colloidal silica is incorporated in a vegetable oil at a temperature of at least 100 DEG C. so as to convert the resulting mixture to a gel. the resulting gel is allowed to cool, the hydrosoluble vitamin is incorporated in the gel, the liposoluble vitamin is dissolved in a condensate of ethylene oxide with a rosaceous kernel oil and the resulting solution is mixed with the gel.  Specified vegetable oils are arachis, olive, sesame, cotton, maize.  Specified kernel oils are peach or apricot. Specified vitamins are B1, B2, B6, B12, C, folic acid, acetylated or unacetylated K, PP, calcium pantothenate as hydrosuluble, and A, D2, D3, E, F as liposoluble.  Particularly suitable colloidal silica may be obtained by the pyrogenation of a halogen derivative of silicon and is preferably used in 2-7% by weight based on the vegetable oil which is gelled.  Essential amino acids, such as lysine and tryptophane, ferments, peptides, such as the di- or poly-peptide of cocarboxylase may be included.
Patent GB-772970-A (GB)
Title: Improvements in and relating to flame controlling safety apparatus
IPC: F23N5/08
Filed: 1955-07-26
Abstract: 772,970. Photo-electric flame-control apparatus. GENERAL ELECTRIC CO. July 26, 1955 [July 28, 1954], No. 21609/55. Class 40 (3). In a safety apparatus, including an electric circuit for interrupting the fuel supply to a combustion chamber when the flame is extinguished, the circuit is controlled by a light-sensitive element which changes its resistance in response to light intensity and is accommodated in a recess of a metal block. The apparatus shown comprises a flame detector 15, Fig. 1, mounted on the outer casing 5 of a combustion chamber 22 to which air is fed from a compressor 1 so as to mix with fuel supplied through a nozzle 10 and a solenoid operated valve 13. Combustion is started by driving the compressor 1 and then opening valve 13 by closing push-button switch 63 to energize solenoid 64, Figs. 1 and 4. When the fuel has been ignited in usual manner, the light from the flame so reduces the resistance of the light-sensitive element in the flame detector 15 as to energize relay 25 and close a switch 65. The circuit through solenoid 64 is then kept closed until the flame is extinguished, but when this happens the increase in resistance of the light-sensitive element causes switch 65 to open so that solenoid 64 closes the valve 13 to shut off the fuel supply. The light-sensitive element 47, Fig. 2, is housed in a recess in a T-shaped metal block coated with insulating enamel, this block fitting in a chamber in a liquid cooled metal casing 18 sandwiched between a block 19, having a connection at 24 to an electrical conductor, and a block 17, which is supported on the casing 5 of the combustion chamber, and has a central bore aligned with apertures in that chamber, and accommodating a glass or quartz window 38 between the chamber and the cell 47. Gaskets prevent leakage of gas into the space containing the cell, vents communicating with the outside atmosphere being also provided in the block 17 to allow the escape of any gas which may enter the bore thereof.
Patent GB-694186-A (GB)
Title: Method of securing an attachment piece to a wire cable
Inventor: MELSOM WALTER ARTHUR
IPC: F16G11/02
Filed: 1950-09-01
Abstract: 694,186. Jointing by forging. BOWDEN (ENGINEERS), Ltd. Sept. 3, 1951 [Sept. 1, 1950], No. 21663/50. Class 83 (iv). [Also in Group XXV] A method of securing a metal attachmentpiece to a wire cable is characterized by creating indentations in the wires forming the outer surface of the cable and then deforming the metal of the attachment piece around the cable so that it flows into said indentations. The outer zinc-coated high-tensile steel wires 2 of a concentric lay-type cable 1 have multiple indentations 3 disposed on one or more helices at one end of the cable. The indented end portion of the cable is introduced into the smooth interior of a mild steel attachmentpiece 4 and the latter is contracted around the cable by rotary or other radially closing swaging dies so that the metal of the attachment-piece flows into the indentations and into the external helical grooves 5 formed by the wires of the eable. If the outer wires of the cable are of 0.020 inches in diameter, indentations approximately 0.005 inches in depth will serve. The indentations, which are formed by submitting the cable to pressure between dies, may be in the form of circular series spaced at intervals along the cable or on criss-cross or knurling lines. One or more helical series of indentations may be formed by a die comprising a screw-thread, or threads, of a finer pitch than the cable wires. The attachment piece may also be made of bronze, copper, brass or other ductile metal. The Provisional Specification states that instead of forming indentations 3 on the cable, keying members may be inserted between the cable and attachment piece to penetrate both members, e.g. the cable may be coated with carbortindum powder, which may be applied to a quick-drying lacquer film on the cable.
Patent GB-382653-A (GB)
Title: Domestic liquid fuel burning mechanism
IPC: F23D11/00
Filed: 1931-07-29
Abstract: 382,653. Dashpots. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Williams Oil-O-Matic Heating Corporation; 1201, East Bell Street, Bloomington, Illinois, U.S.A.) July 29, 1931, No. 21676. [Class 108 (iii).] In an electrically driven domestic liquid fuel-burner apparatus the fuel valve 22 which is normally held seated by a spring 23 is opened when the motor shaft 4 driving a fuel metering pump 11 and an air and fuel mixing pump 11 commences to rotate by a lever 59 engaged by a plunger 47 which is operated against the resistance of a spring 48 by a metallic bellows 43. The bellows 43 is arranged in a housing 40 which is connected by a pipe 39 to the delivery port of the pump 11. In order that the upward movement of the plunger may be,slow and its downward movement rapid the space inside the bellows communicates with a chamber 51 formed integrally with the closure 45 of the housing 40<1>. Air can freely enter the chamber 51 past a ball-valve 58 but can only escape past an adjustable needle-valve 57. The plunger 47 and valve rod 24 are fitted with bellows stuffing boxes 49, 25.
Patent GB-694418-A (GB)
Title: Adjustable potentiometer
IPC: H03G3/06
Filed: 1950-04-06
Abstract: 694,418. Variable resistances. SYLVANIA ELECTRIC PRODUCTS, Inc. April 6, 1950 [April 16, 1949], No. 21691/52. Divided out of 694,364. Class 37. [Also in Group XL (c)] An adjustable potentiometer comprises an electrically continuous resistive element and a conductive member movably supported in insulated relation to at least the major length of the element and including a contact structure mechanically and electrically engaging the resistive element, the contact structure comprising a condenser having one terminal forming part of or connected to the movable member and a second terminal engaging the resistive element, so that the movable member is capacitively coupled to the part of the resistive element which is engaged by the second terminal. As shown in Figs. 1 and 1A, the resistance element 10 comprises an open ring of graphite &c. coated on one surface of a member 11 of material of high dielectric constant, such as titanium dioxide ceramic, titanium dioxide magnesium titanate, or titanium-zirconium dioxide ceramic. The ends of the element 10 are connected to terminals 12, 13. A conductive member or slider 20 is mounted on a shaft 24 of insulating material and is insulated from at least the major part of the length of the element 10. The member 20 includes an arm 27 which terminates in a condenser 32 comprising a number of plates 33 sandwiched between layers 34 of dielectric material. This provides capacitive coupling between the arm 27 and the portion of the element 10 opposite to it. The member 20 is connected to a terminal 30. The potentiometer is adapted to be used as a volume control in a radio receiver having an intermediate frequency transformer 35, Fig. 2, a diode rectifier 38 and an audio amplifier valve 39 with an input circuit resistor 40. The capacitive coupling between the movable arm 27 and the element 10 is indicated as a condenser 32 adjustably coupled to the resistance element by a slidable tap. In a modification, Fig. 3, the resistive element 10 is extended beyond the terminal 12 and the terminal 30 is bent down and connected to one end of the element by a rivet 41. The portion of the element 10 between the terminals 12, 30 may form the fixed resistor 40, Fig. 2. The portion of the resistive element between the terminals 12, 30 may alternatively be placed on the upper surface of the element 11 and may have a different value of resistance per unit length than the resistive element 10. Fig. 4 shows a dual potentiometer wherein one potentiometer comprises a resistance element 10<SP>1</SP>, slider arm 20<SP>1</SP>, and the condenser 32<SP>1</SP>. The second potentiometer comprises a resistance element 42 on the opposite side of the member 11<SP>1</SP>, a slider 43 carried by a hollow shaft 44 surrounding the shaft 24<SP>1</SP> of the first potentiometer, and a condenser 45 formed by condenser plates 46 sandwiched between layers 47 of dielectric material. Specification 694,364 is referred to.
Patent GB-982057-A (GB)
Title: Improvements relating to pouring spouts for containers
IPC: B65D47/06
Filed: 1963-05-30
Abstract: 982,057. Retractable pouring spouts. AMERICAN FLANGE & MANUFACTURING CO. Ltd. May 30, 1963 [Nov. 26, 1962], No. 21762/63. Heading B8D. A retractable pouring spout 1 for drums slides within a nozzle 3 and is held in its extended position by the engagement with the nozzle wall 10 of a circumferential groove in a thickened portion 12 of the lower end of the spout which is castellated at 19, the cylindrical base 13 of the groove having a diameter slightly greater than that of the cylindrical side wall 2, and the upper wall 14 of the groove being connected to the main wall 2 by an inclined portion. The castellation 19 provides sufficient resiliency for the spout to be easily inserted into the nozzle which is made of sheet metal and is screw-threaded at 6 to receive a cap. The spout is moulded from a plastics material such as polypropylene using split cavity moulds. Where the mould members part, two diametrically o pposite ridges 22 are formed by the flashes which would destroy the seal between the groove base 13 and nozzle wall 10, but leakage is prevented by the end of the nozzle wall 10 biting into the lower wall 15 of the groove. The spout has a sharp-edged pouring lip 30 and an air vent 33, and may be rendered tamperproof in the retracted position by a metal seal frictionally engaged with the wall 8 of the nozzle. Modified forms of nozzle are described.
Patent GB-1439671-A (GB)
Title: Trickle dispenser for irrigation installations
IPC: A01G25/00
Filed: 1973-05-08
Abstract: 1439671 Liquid sprinkler for irrigation INDUSTRIAS NEOPLAST SA 8 May 1973 21782/73 Heading A1D A device for providing trickle flow in an irrigation installation comprises a unitary tubular member which is exteriorly separated into two zones by a central annular flange 1. Zone 4 is located upstream in use in tubing 2, and comprises frusto-conical sections. Downstream zone 5 is threaded at 6 and fits into a pipe 3. The upper end of screw thread 6 is separated from flange 1 by an unthreaded portion which has axial ribs 9 to space pipe 3 from the unthreaded portion. The ribs 9 extend to radial ribs 10 integral with flange 1 and which separate the pipe section 3 from the flange and provide radial outlets for the water after reversal around the bottom 8 of the zone 5. The lowermost turn of the thread 6 is cut at 7 to provide a secondary inlet to the thread.
Patent GB-220387-A (GB)
Abstract: 220,387. Kassner, E. May 17, 1923. Adding-apparatus and cash registers with operating-means.-A machine for use alternatively as an adding machine or as a cash register is of the multiple-bank, crank-operated type and may print a voucher bearing the separate items and their total constituting a complex transaction. Differential-mechanism.-Depression of a key 1 differentially sets a stepped lever 3 so that its end 21 is positioned in the path of a corresponding step formed in a lever 14 loose on a shaft 11 and tending to turn counterclockwise under the action of a spring 20 connected with the lever by means of an arm 18 and links 17, 16. Rotation of the crank shaft 7 rocks shaft 11 so that abutment members fast thereon move away from pins 13 mounted on the levers 14 to allow these to take up their setting. Type on the lower ends of the levers 14 are simultaneously positioned at the printing line 31 to print the item on a voucher strip 48. With several item-value totalizers; printing totals.-The differential movements of the levers 14 are conveyed to a transaction totalizer 28 through link 16, sector 23 and gears 25, 26. This counter and its actuating-gear together with a grand totalizer 64 are mounted in a frame 52 pivotally supported in line with pivots 22 and capable of being rocked, to engage the actuating gear 25 with the grand totalizer, by means of a handle 129, forked arm 129<a> and pin 129<b>. When the various items of a complex transaction have been entered on the transaction totalizer and recorded on the voucher strip, the handle 129 is moved into the dotted line position to shift the gear 25 over to the grand totalizer. By this same movement a bar 56 mounted in the frame 52 is removed from lugs 58 on feeling-levers 57 which thereupon turn counterclockwise so that their ends 60 enter recesses 28<a> in the transaction counter wheels. These recesses are of differing depths corresponding with the differential settings of the wheels and consequently the levers 57 are positioned in accordance with the total value of the items as exhibited at the apertures 61, and through overlapping lugs 62 differentially position the levers 3. By turning the main crank levers therefore this total is transmitted to the lever 14 to be printed and accumulated on the grand totalizer.
Patent GB-1462550-A (GB)
Title: Miniature vacuum stroke cleaning implement
IPC: A47L5/04
Filed: 1975-05-22
Abstract: 1462550 Suction pick-up tool W S FORTUNE 22 May 1975 [24 June 1974] 22048/75 Heading B4W A suction pick-up tool comprises a generally cylindrical moulded body 12 having a nozzle 94 at one end, a piston assembly slidably mounted in the bore 14 of the body 12 the piston assembly including a piston element 46 with an 0-ring 48, an axially spaced guide boss 54 and a nozzle-cleaning rod 52, a cocking handle 80 for urging the piston assembly forwardly against the action of biasing means such as spring 100 and latching means 84, 86, 90 connected to the cocking handle and arranged to co-operate with the forward end 88 of guide channels 34 formed on the exterior of body 12, release of the latching means (by finger pressure) allowing the piston assembly to fly back thus creating a suction impulse for picking up material through the nozzle 94, the piston assembly being arrested by stop means including a spring tongue element 74 arranged to pass through and abut against the rear end of a slot 24 in the rear end of body 12. In an alternative embodiment an elastic band (100<SP>1</SP>, Fig. 2, not shown) extends between the piston and a hook on the rear end of the body to bias the piston assembly rearwardly. The tool is intended for use in various applications and particularly for removing molten solder in desoldering operations.
Patent GB-284554-A (GB)
Title: Improvements in and relating to sleepers for railway rails
IPC: E01B3/18
Filed: 1927-08-22
Abstract: 284,554. Williams, O. R. Aug. 22, 1927. Chairs, securing to sleepers; sleepers, metal. - Metal trough sleepers 1 are strengthened at the rail seats by bearing-plates 2 cut from old sleepers and pressed to shape, the plates engaging the sleeper sides for the whole or part of their depth. The plates mav be riveted, bolted, or welded to the sleepers, and may have shoulders 5, Fig. 2, or ribs 11, Fig. 5, formed by pressing or rolling to take the thrust of the rail clamps 6. The plates may be pressed to conform to the sleeper edges 13, or may be used inside the sleeper, Fig. 8.
Patent GB-1315294-A (GB)
Title: Systems utilising ultrasonic waves for carrying out flow measurements in fluids
IPC: G01F1/66
Filed: 1971-04-19
Abstract: 1315294 Ultrasonic fluid flowmeters THOMSON-CSF 19 Apri1 1971 [27 Feb 1970] 22174/71 Heading H4D In an ultrasonic flowmeter a timing generator produces pulses at predetermined intervals and is connected to a first input of a bi-stable and to the trigger input of a generator producing f.m. pulses which are fed to a transmitting transducer ; a receiving transducer is connected to a delay line which time compresses the received signal and has an output connected via a detector to the second input of the bi-stable. Time base BT causes generator G1 to transmit simultaneously from transducers V 12 , V 21 , frequency modulated pulses. The modulated pulses are received by the opposite transducers and pass through dispersive delay lines LD1, LD2 and detectors to a bi-stable BST 1  which thus generates an output pulse equal to the difference in the up- and downstream propagation times. The time base BT also triggers a second bi-stable BST 3  and causes generator G3 to transmit an f.m. pulse across the pipe to receiver R3 whence it passes through delay line LD2 to reset the bi-stable BST 3 . The bi-stable output enables clock pulses from oscillator P to be counted, the count representing the propagation time across the pipe, i.e. being inversely proportional to the sound velocity in the fluid. The digital count is converted to an analogue voltage, squared and used to control the frequency of oscillator OSC which produces clock pulses which are counted during the output from BST 1  providing a digital count proportional to the flow velocity. Several devices may be used together to detect leaks in the pipe.
Patent GB-143457-A (GB)
Title: Improvements in multiple-share ploughs
IPC: A01B3/18
Filed: 1919-09-10
Abstract: 143,457. Hee, E. Sept. 10, 1919. Ploughs.-A multiple-furrow oneway plough has its two sets of ploughs carried by a frame 10 supported by bearings 14, 15 on a shaft 9 extending between a fore-carriage mounted on wheels 2, 2<a> and a rear frame 4 mounted on wheels 3, 3<a>. The frame 4 can swing about an horizontal axis 5 at the lower end of a rotatable vertical post, the height of which can be adjusted by a hand-wheel 6. The wheels 2, 2a are mounted on the short arms of bell-crank levers of which the other arms 7 are formed as hand-levers which may be adjusted along quadrants 8. The frame 10 is swung about the shaft 9 by a chain 16 connected to each side of the frame and passing over a sprocket wheel 17 which may be rotated by the driver on the plough tractor. A spring connexion 18 is interposed between the chain and the frame. The tractive force is transmitted from the fore-carriage to the ploughframe by (i) a bearing 12 in which the bearing 15, which is provided with a collar, revolves, and (ii) a semicircular frame 13 fixed to the forecarriage against which hooks 19 on the frame 10 bear. The plough is connected to the tractor 22 by a swingletree 20 pivoted to the tractor at 21 and provided with chains 23 attached to the plough. Slideways 24 provided with holes are used to limit the swinging movement of the tree 20.