baber/WOPTO huggingface dataset:
Patent GB-722375-A (GB)
Title: A conversion process for olefins and olefin derivatives
IPC: C07C51/16
Filed: 1952-09-18
Abstract: An acrylic monoolefine containing 2-4 carbon atoms, or the product of the reaction of the olefine with hydrogen sulphide or sulphuric acid, is oxidized to the corresponding carboxylic acid ammonium salt or amide by means of aqueous ammonium sulphate and a water-soluble sulphide at a temperature ranging from 350 DEG  F. to the critical temperature of water, preferably 550-650 DEG  F., under a pressure sufficient to maintain some of the water in the liquid phase and if desired the salt or amide or mixture thereof hydrolysed to the corresponding free acid.  The propionamide and butyramide thus obtained may be dehydrated to the corresponding nitriles which may be dehydrogenated to acrylo- or methacrylo-nitrile respectively. Dehydration may be effected with a catalyst such as silica or alumina at 250-400 DEG  C. and dehydrogenation is effected in the presence of a catalyst such as a supported Group VI metal oxide or sulphide at about 400-800 DEG  C. Below 650 DEG  F. a molecular excess of hydrogen sulphide over olefine should be used.  Hydrolysis of the salt and amide may be effected with sulphuric acid and the freed acid recovered by azeotropic distillation with e.g. benzene, toluene or furfural, from the aqueous solution obtained after removal of hydrogen sulphide.  The acid, e.g. propionic acid may be reacted with ammonia to yield the nitrile which is dehydrogenated to acrylonitrile.  In examples propylene is treated with aqueous ammonium sulphate and (1) and (2) hydrogen sulphide, (7) ammonium sulphide, and (8) ammonium polysulphide to yield propionamide and ammonium propionate which are hydrolysed with sulphuric acid to the free acid, in (3) mixed 1- and 2-butenes are treated as in (1) to yield butyric acid and in (4) isopropylmercaptan, (5) isobutene, (6) n-propylmercaptan, and (9) ethylene on similar treatment respectively give propionic acid, isobutyric acid amide, mixed propionic and acetic acids and acetic acid.  It is stated that n- and isopropylsulphide and n- and iso-butylsulphide yield propionic and normal and isobutyric acids.  Specification 706,042 is referred to.
Patent GB-337426-A (GB)
Title: Improvements in or relating to gumming machines
IPC: B05C1/16
Filed: 1929-07-31
Abstract: 337,426. Jaggers, W. J., and Eno, Ltd., J. C. July 31, 1929. Coating-machines. - In a gumming-machine, the gumming roller is provided over the whole or a major portion of its surface with a regular or irregular openwork or mesh-like pattern in relief, so that gum is transferred only to those portions of the paper or other material which actually come into contact with the relief pattern. A roller 10 rotating in a trough of gum 11 picks up a coating of gum, the thickness being regulated by an adjustable doctor blade 12; the gum is transferred by contact to a gumming roller 14. Labels and the like to be gummed are fed from a table 20 by a knurled feed roller 19 so as to pass between the gumming roller 14 and a jockey roller 21. The labels are removed from the machine by pick-off rods 22 working in grooves 25 in the gumming roller. Collars 26 on the jockey feed-roller 21 fit into the groove 25 to guide the labels. The surface of the gumming roller 14 is covered with an impressed diamond lattice, the size of the lattice varying with the type of label to be gummed. The edges of the diamond-shaped depressions are perpendicular to the surface of the roller to avoid retaining the gum.
Patent GB-1495203-A (GB)
Title: Phase locked loop circuits
IPC: H03L7/093
Filed: 1976-05-28
Abstract: 1495203 AFC systems SOLARTRON ELECTRONIC GROUP Ltd 28 May 1976 [31 May 1975] 23728/75 Heading H3A In a phase locked loop comprising a VCO 30, a phase detector 18 connected to receive an input signal at 12 and the output of a divide by two divider 42 connected directly or via a further divider 40 to the VCO output, a signal component at double the input frequency in the detector 18 output is eliminated by combining with a signal at the same frequency but of opposite phase derived from the VCO 30. The phase detector may be an exclusive OR circuit producing a push-pull output and an arrangement 44-54 including inverters and adjustable resistors applies signals of opposite phases and of the right amplitudes for exact cancellation. The loop may include in addition a low-pass filter or an integrator. The VCO centre frequency may be manually adjusted at an input 35 and provides an output frequency = Nf in . Where N is not an exact multiple of two, the loop may include a binary rate multiplier followed by divide by ten divider circuits.
Patent GB-865003-A (GB)
Title: Sealing devices for ball or roller bearings
Inventor: JONES ELWYN GEORGE
IPC: F16C33/78
Filed: 1959-07-10
Abstract: 865,003. Stuffing-box substitutes. POLLARD BEARINGS Ltd. Oct. 16, 1959 [July 10, 1959], No. 23732/59. Class 122 (5). A sealing-device for a ball or roller bearing. comprises two separate rings 1, 2, Fig. 3, of resilient material sandwiched between and projecting beyond two stiffening rings 3, the ring 1 being'of suitable cross-section and hardness to engage firmly in an annular groove 4 in the outer race 5 and the other ring being of suitable cross-section and softness to make only light rubbing contact with the inner race 7. The rings 1, 2, 3 may be secured together by cementing or riveting. Rubber may be used for both rings 1, 2, or nylon for the outer ring, or felt for the inner ring. In the seal shown in Fig. 4 the stiffening-rings 13, 14 are dished so as to fit tightly together in clamping engagement with the resilient rings 11, 12 and in the construction of Fig. 5 both stiffening rings are dished once so as to hold the resilient rings 21, 22 axially spaced apart; in the latter arrangement, the inner peripheries of the stiffening- rings may be inclined to hold the resilient ring 22 inclined outwardly in the axial direction. The desired cross-section of the outer ring to enable it to engage the groove in the outer race of the bearing may be suitably formed by compressing or distorting this ring between the stiffening- rings.
Patent GB-599322-A (GB)
Title: Improvements relating to hammers
IPC: B25D1/14
Filed: 1945-09-14
Abstract: 599,322. Hammers; handle fixings. STOTT, J. W. Sept. 14. 1945, No. 23780. Classes 61 (i) and 61 (ii)] Eyed tools or implements such as hammers. spades, shovels, hoes, rakes &c. in which the head is formed with a socket for the handle have the head formed integrally with extending parts or lugs provided with inwardly projecting barbs &c. 4 to penetrate the handle 3 and secure the tool head thereon. The extending parts 1 may be surrounded by an encircling clamping ring and may be separately formed from the eved head and their lower ends held in position by outwardly radial penetration within recesses formed within the eye when the handle is driven in. In the soft-face hammer shown the rolled hide &c. faces 5 are secured by spurred, &c. pins 8.
Patent GB-317050-A (GB)
Title: Apparatus for the electric distant control of adjustable devices situated in sub-stations from a main station
IPC: H02J13/00
Filed: 1929-08-02
Abstract: 317,050. Siemens & Halske Akt.- Ges. Aug. 9, 1928, [Convention date]. Selective distant control systems; tell-tale apparatus.-In an electric selective distant control system wherein one of a number of apparatus units, e.g., circuit breakers, may be selected for operation, the selection is checked prior to operation of the unit by transmitting from the substation to the control station a signalling current of characteristic frequency. As shown a circuit breaker at the substation N may be selected by a stepping switch 6 which is operated by impulses transmitted over the line 3 by the. impulse sender 1. Each circuit breaker has an associated vibrating reed 10 of characteristic frequency and upon each operation of the stepping magnet 4 electromagnets 26 are energized to set all the reeds 10 into vibration. In this manner, the reed associated with the selected circuit breaker affects a microphone 9 which transmits a current of characteristic frequency over the line 3 to operate the appropriate reed of the frequency indicator 15. After the selection is checked, the selected circuit breaker may be " closed or " opened " by magnets 11a, 11b which are selectively operated by currents of different frequency transmitted by the key 14. Control may be effected by positive and negative currents or the circuit breaker may be operated into both positions by impulses of the same kind. The checking signals may be amplified in the control station and instead of utilizing an earth return as shown, a second live wire may be provided. Repeaters may be employed in the line circuit when transmission is effected over long distances.
Patent GB-1033386-A (GB)
Title: New azo dyestuffs for shaped articles of high molecular polymers and method of dyeing these polymers to fast yellow colour
IPC: C09B29/12
Filed: 1963-06-14
Abstract: The invention comprises a dyestuff having the capability of dyeing shaped articles of polyolefins to fast yellow colour and having the formula <FORM:1033386/C4-C5/1> in which R represents an alkyl radical having less than 12 carbon atoms and R1 represents a hydrogen or halogen atom or an alkyl radical. Such dyes are obtained by coupling appropriate aminodiphenyl derivatives as diazo components with appropriate alkyl phenyl derivatives.  The examples relate to the dyeing of fibres of polypropylene, polyvinyl chloride, polyethylene, polyvinylidene, chloride and polystyrene with aqueous dispersion dyes of the kind defined above.
Patent GB-681011-A (GB)
Title: Aqueous acid fluoride compositions for removing rust and stains from fabric
Filed: 1949-09-15
Abstract: Rust and like stains are removed from fabrics by treatment with an aqueous composition comprising (1) an acid fluoride, the proportion of free and combined hydrogen fluoride being about 5-60 per cent by weight, and (2) from 0.25 to 15 per cent by weight of an aliphatic oxygen-containing compound (other than a free carboxylic acid) containing 1-10 carbon atoms and having surface-tension depressant properties.  The aliphatic compound may be a mono- or polyhydric alcohol, an ether, a carboxylic acid ester or a ketone.  Specified aliphatic compounds are methyl, ethyl, propyl, isopropyl and the various butyl alcohols, methyl, ethyl and butyl ethers of ethylene and diethylene glycol, methyl, ethyl, butyl and amyl acetates, ethyl lactate, ethylene glycol, 1 p  : 5-pentanediol, 2-methyl-2 : 4-pentanediol, acetone and methyl-ethyl ketone.  Examples are given of aqueous compositions containing ammonium bifluoride, hydrofluoric acid, and isopropyl alcohol or the butyl ether of diethylene glycol, but instead of ammonium bifluoride the corresponding sodium or potassium compounds or hydrofluoric acid itself may be used.
Patent GB-870694-A (GB)
Title: Improvements in or relating to the removal of dust in plant for drying and preheating the raw materials for the production of cement and the like
Inventor: NEITZEL MARTIN
IPC: F27B7/20
Filed: 1959-07-10
Abstract: 870,694. Preheating furnace charges. POLYSIUS G.m.b.H. July 10, 1959, No. 23847/59. Class 51 (2). The exhaust gases from a rotary cement kiln 5 are sucked by a fan 10 through a bed of raw material on the upper run of a continuous conveyer comprising a series of hinged plates which lie upon one another in the upper run to impart both heat and dust thereto and are then forced to impinge upon the freely-hanging plates of the lower run of the conveyer by the suction openings of exhaust pipes 6 being located close above the lower run to precipitate more dust. Further precipitation of dust is caused by the gases taking a sharp deflection under the force of suction and impinge on plates 9 in the openings of the pipes. The process is repeated in another portion of the conveyer system by a suction pipe 11 before the gases are discharged by a blower 12 into a stack. Dust precipitated between the hanging plates of the lower run falls through a dust box 7 into a screw conveyer 8. Deflector 14, 15 between the upper and lower runs of the conveyer prevent the cleaned gases intermingling with the dust formed in the hopper and with dust from the upper run of the conveyer respectively.
Patent GB-1016530-A (GB)
Title: Improvements in diazotype materials and processes
Inventor: TS GRAHAM STANLEY ROBER
IPC: G03C1/61
Filed: 1964-06-09
Abstract: 1,016,530. Heat developable diazotype materials. COPYCAT Ltd. June 9, 1964, No. 23854/64. Heading G2C. A heat-developable diarotype material comprises a support coated with a solution containing a diaronium compound, an azo coupler, an acid and dicyandiamide. Specified acids are diglycollic, glycollic, acetone dicarboxylic, cyanacetic, itaconic, maleic, malic and trichloracetic. The solution may also contain silica, polyvinyl alcohol or cadmium sulphate. The preferred diazonium compounds are diazotised p-phenylene diamines including those where the amine nitrogen is part of a heterocyclic ring.
Patent GB-833866-A (GB)
Title: Tryptamine derivatives
Filed: 1958-07-24
Abstract: The invention comprises tryptamine N-tryptamino carboxylates of the formula <FORM:0833866/IV (b)/1> where R is hydrogen or a substituent that is preferably halogen (e.g. chlorine alkoxy (e.g.), methoxy), alkyl or aralkyl, which are prepared by passing carbon dioxide through a solution of a tryptamine of the formula <FORM:0833866/IV (b)/2> in an inert solvent, such as ethanol or methylene chloride, which will precipitate the resulting carboxylate.  The process may be employed for purifying tryptamines, the resulting tryptamine N-tryptamino carboxylates yielding pure tryptamines on heating.
Patent GB-319120-A (GB)
Title: Means for automatically controlling an electro-magnetic device
IPC: G04C1/02
Filed: 1928-08-20
Abstract: 319,120. Quartier, E. Aug. 20, 1928. Electric clocks. - An arrangement for automatically controlling an electromagnetic device such as may be employed for driving an electric clock has a contact making rocking lever adapted to touch a fixed contact, the contact lever being pivotally mounted at or near the free end of an oscillating lever which is operated by the electromagnet and is under the action of one or more springs tending to cause it to take up one or other of two extreme positions with respect to said part. As shown in Fig. 1, a pivoted arm g carrying the core j of the operating solenoid w carries in a forked end 14 a contact lever 7 which is constrained by springs 18 to take up one or other of two extreme positions in which it engages a fixed contact 8 in the solenoid circuit or a stop 22. On attraction of the solenoid core the lever g moves a pawl f pivoted thereto along the periphery of a toothed drum e connected through an escapement to the minute hand of the clock. The contact lever 7 is moved to the dotted position during this movement with a quick action so breaking the solenoid circuit. The stepping of the pawl strains a spring h which drives the drum c slowly until the spring 18 is again brought across the dead-centre position. A quick-action closing movement of the solenoid circuit then occurs and the cycle of operations is repeated. The fixed contact may be in the form of a divided spring blade for obtaining a yielding contact between it and the rocking contact member. The solenoid is provided with a fixed core s and a surrounding magnetic shell n, o for decreasing the reluctance of its magnetic circuit and the lower conical tip of the movable core is provided with a brass projection 6 for preventing adhesion to the fixed core. In a modified form the movable core is arranged in the lower portion of the solenoid and the electromagnetically-controlled oscillating lever is mounted below the operating solenoid. The contact lever in this form is used to control the circuit of a secondary electromagnetic device, independent means being provided to control the solenoid. The operating solenoid may be replaced by an electromagnet.
Patent GB-1160860-A (GB)
Title: Improvements in or relating to Adjustable Frames for Lifting Containers
IPC: B66C1/10
Filed: 1968-05-21
Abstract: 1,160,860. Adjustable frames for lifting containers. MANNESMANN A.G. 21 May, 1968 [22 May., 1967], No. 24059/68. Heading B8H. A lifting frame for containers has interchangeable beams 19, 19<SP>1</SP>, 19<SP>11</SP>, 19<SP>111</SP> provided with container engaging devices 21 which are suspended from an intermediate beam 7 which is horizontally movable with respect to a suspension member 3 to adjust the position of the centre of gravity of the loaded container. The beam 7 rests on wheels 10 of the suspension member 3 and is moved by a screw 5 and captive nut 4. The screw is rotated by an electric motor 13. In Fig. 1 the distance x = x, and y = y, to minimize bending movements. The screw and nut may be replaced by an hydraulic or pneumatic ram.
Patent GB-964254-A (GB)
Title: A radar receiver
IPC: G01S13/28
Filed: 1961-07-04
Abstract: 964,254. Pulse radar. NIPPON ELECTRIC CO. Ltd. July 4, 1961 [July 7, 1960], No 24125/61. Heading H4D. Relates to a pulse radar of the type disclosed in Specification 920,700, which transmits phase-modulated pulse of relatively long duration having frequency components 7 ... 11, Fig. 1 (b), with the predetermined phase relationship, the spacing between adjacent peaks of the components being #f and said components being made coincident in time at the receiver to give short duration pulses by applying the received signal (after conversion to IF) in parallel to a bank of filters 22 ... 26, Fig. 3, having attenuation characteristics 1 ... 5; Fig. 1 (a), the outputs from the filters being applied through corresponding phase shifters 28... 32 and combined at 38. In such a system, if the frequencies of the received components 7 ... 11, Fig. 1 (b), are displaced #f to a condition 7<11> . . . 11<11>, Fig. 1 (d), by the Doppler effect the required time coincidence at the point 38 no longer obtains and according to the present invention time coincidence under such conditions is obtained by adding an additional filter element 27 having an attenuatiin characteristic 6, Fig. 1 (a), and applying the outputs from the filters 23...27 to a combining point 39 through phase shifters 33 ... 37 corresponding to the phase shifters 28...32. Similarly, coincidence for frequency displacements ¢ #f and <3>/2 #f is produced by a corresponding set of filters 22<1> . . . 271 having attenuation characteristics 1<1> . . . 6<1>, Fig. 1 (a), and a corresponding set of phase shifters 281 . . . 371. In a modification, Fig. 4, the inputs to the filters 44 ... 49 corresponding to the filters 22 ... 27 in Fig. 3, are reduced in frequency by a frequency changer 43 and local oscillator 42 and the outputs from the filters are converted back to the initial frequency by the local oscillator 42 and separate frequency changers 55 . . . 64 which take the place of the phase shifters 28.. .37 in Fig. 3, the necessary phase shifts being effected by phase shifters 50...54 in the connections from the local oscillator 42 to the frequency changers 55 ... 64 as shown.
Patent GB-839626-A (GB)
Title: Improvements in automatic means for blending materials by weight
Inventor: HUNTER STANLEY GODWIN
IPC: G01G19/22
Filed: 1955-08-23
Abstract: 839,626. Electric correspondence control. SIMON Ltd., H., and RICHARDSON SCALE CO. Aug. 13, 1956 [Aug. 23, 1955], No. 24210/55. Class 40 (1). In apparatus as described in Specification 779,356 for blending materials by weight, automatic means are provided to check whether the weight of each material is within a permitted tolerance above and below a predetermined value. As shown, resistors R1 and R2 form two arms of a bridge circuit a third arm of which comprises a potentiometer P responsive to movements of a weigh bucket W, and the fourth arm is formed by a bank of resistors CF1-CP4 and CR1 -CR4 and RU which are pre-set to represent the required weights of the materials to be blended, and which are connected in the bridge in turn by the wiper of bank 2 of a selector switch. When switch S is closed the selector switch wipers move to the second and third positions of terminal banks 1-4 energizing relay 1F to open a gate 1G to deliver the first material to weigh bucket W, which descends, thus increasing the resistance of potentiometer P until it balances resistors CP1 + CR1 + RU whereupon a null-voltage amplifier N operates a relay O to energize O0 which locks and releases 1F to close the gate 1G. OA also is energized to increase the resistance of the arm CP1 + CR 1 + RU by the addition of a resistor RO which if the resistance of P does not exceed an acceptable value, upsets the balance to release O. If, however, there is excessive overweight, the bridge remains balanced and the cycle cannot proceed. On the relapse of O, OB pulls up shunting RU and RO, and thus reducing the resistance of the arm opposing the resistance of P which, if it is not below acceptable value, rebalances the bridge and re-energizes O. If the weight is less than the acceptable minimum the cycle cannot proceed. If O does operate, the wipers of the selector switch move to positions 4 and 5 to initiate the discharge of the second material. When wiper 4 reaches position 3 it energizes a relay X which pulls up sluggishly because of shunting capacitors C1, C2. In due course X energizes Y which locks and interrupts the circuit of X which falls sluggishly away. If, when X falls, the wipers are still in position 3, Y remains locked up and relay A pulls up to give visual and audible alarms and light lamps to indicate " underweight " or " overweight " according to the conditions of OA and OB. Otherwise X releases Y and then pulls up again over the fifth terminal in bank 4 for the next cycle.
Patent GB-205480-A (GB)
Title: Improvements in and relating to ball-jointed hinge connections
IPC: E05D7/06
Filed: 1923-09-29
Abstract: 205,480. CambessÚdÞs, J. Oct. 11, 1922, [Convention date]. Ball-jointed hinges are secured to a member A that has an extension 3 adapted to engage a housing 4 in which is a mechanically or hydraulically operated catch 6 for securing the extension to the other hinged member B. The application of the device to a tipping wagon as described in Specification 192,389, [Class 108 (i), Road vehicles, Body details &c. of], is referred tc, A being a movable frame and B a fixed frame member. The ball 1 is mounted in a socket 2<1> for universal movement, and the movable catch 6 is operable by a cam spindle 8. With the parts in the assembled position, as shown, a pin 14 movable in the shank 3 is forced up by contact with a pin 15 to maintain a locking pin 10 out of engagement with a recess 13; the member A is thus free to rotate about the ball 1. To disconnect the member A, the catch 6 is released from the shank by the operation of the spindle 8 and the shank lifted out of the socket 4. As this operation occurs, the catch 10 is forced by the spring 12 into engagement with the recess 13 in the ball, which is thus maintained with the shank 3 in a position ready for the next engagement with support 4. The shaft 8 may be operated by the driver of the wagon. When the extension 3 is lifted out of the member 4 a pin is moved to lock the spindle 8 against movement.
Patent GB-1190693-A (GB)
Title: Improvements in or relating to Pipe Connection Units for Hydraulic Systems.
IPC: F15B13/00
Filed: 1968-05-22
Abstract: 1,190,693. Pipe joints. ALFRED TEVES G.m.b.H. 22 May, 1968 [2 Oct., 1967], No. 24420/68. Heading F2G. An hydraulic circuit consisting of pipes connected together to provide several connection points, is moulded into a block of plastics material 15, e.g. polyester resin. All the joints are soldered at once in a furnace prior to the moulding.