baber/WOPTO huggingface dataset:
Patent GB-318104-A (GB)
Title: Improvement in spring suspension systems for front wheel driven vehicles
IPC: B60K17/30
Filed: 1929-08-10
Abstract: 318,104. Voran Automobilbau Akt.- Ges. Aug. 27, 1928, [Convention date]. Springs, arrangenqent of.-Vehicles with driven front wheels are provided with transverse front springs f, the effective length of which may be varied automatically as the load Increases or the springs deffect due to road shocks. Two transverse springs may be arranged side by side. The two front wheels b swivel for steering and are driven from the gear case c by transverse shafts and universal joints. The spring make contact with abutments h on the underside of the gear case c when their deflection increases sufficiently. Parallel motion linkwork guides the axles in their vertical movements.
Patent GB-855752-A (GB)
Title: Engine centrifugal governor with stabilizing means
IPC: G05D13/06
Filed: 1959-07-17
Abstract: 855,752. Centrifugal governors. CATERPILLAR TRACTOR CO. July 17, 1959 [April 13, 1959], No. 24591/59. Class 57. In a centrifugal governor for an internal-combustion or other engine comprising weights 19 carried by a rotatable spindle 18 acting on a sleeve 22 loaded by a spring 25 and slidable on the spindle, movement of the sleeve is damped by hydraulic means comprising a restricted orifice 40, Fig. 2, in a plate 36 separating two oil-filled reservoirs 35, 38 in the sleeve. The spindle 18 is driven by the engine and the governor controls the fuel pump rack-bar 15. Oil from a pressure source, for example the engine-lubricating oil system, is fed to the reservoirs through a passage 32 in the governor housing 10, passages 31 and 33 in the spindle 18 and a small clearance between the end portion of the spindle and the sleeve bore. Excess oil spilling over the top of the upper reservoir 38 serves to lubricate the governor. The load on the governor spring 25 is adjusted by a movable spring abutment 26 controlled by a lever 30.
Patent GB-670624-A (GB)
Title: Improvements in or relating to thermostatic control devices
IPC: G05D23/275
Filed: 1948-09-20
Abstract: 670,624. Thermal switches. MERLIN MOULDINGS, Ltd., and REEVES, C. E. Oct. 6, 1949. [Sept. 20, 1948] No. 24615/48. Class 38 (v). [Also in Groups XIII and XXXV] In a thermal control for a heating element 25, the space between a heat-sensitive cut-out element, such as a bellows or a bimetal strip 11, and its housing 12, e.g. a metal cylinder, which is sealed at one or both ends and is to be placed. in the medium to be heated, is evacuated or filled with a fluid or comminuted solid of less heat conductivity than the medium to be heated to delay the initial action of the cut-out. Furthermore, a screw 26 for adjusting the thermal element is disposed in a plug pin 19. A pilot heater. 30 is connected directly to plug pins 18, 19 while the heater 25 is connected between the pins by way of a supporting arm 20, the bimetal strip 11, contacts 21, a spring leaf 23 (insulated from the arm 20) and a tail 29. The screw 26 varies the pressure between the contacts 21. In use in a coffee percolator, the heaters raise the water temperature to 100‹C., which is maintained for ten minutes because of thedelaying action of the housing 12 and its contents, until the bimetal 11 attains its "breaking" temperature of 95‹C. Then the main heater 25 is. cut out until the bimetal falls to 94‹C. and the circuit is restored. The housing and its contents now being ineffective as a delaying device, the coffee temperature is held at 94‹ to 95‹C. which are the "make" and "break" temperatures of the bimetal 11.
Patent GB-665945-A (GB)
Title: Improvements relating to lubricators
IPC: B61F17/26
Filed: 1949-09-26
Abstract: 665,945. Lubricators. WAGNER, M. Sept. 26, 1949 [Oct. 1, 1948], No. 24696/49. Class 12 (iii). A lubricator for a bearing having oscillating motion, for example, in railway locomotives, comprises an inverted pendulum 10 which, oscillating on a pin 7 in response to bearing motion, rotates a roller 4 through a pawl 12 and ratchet-wheel 6 so that one or more depressions 5 in the roller 4 convey a measured quantity of lubricant from an inlet passage 11 to an outlet passage 2. A leafspring 14 clears the lubricant from the depressions.
Patent GB-425307-A (GB)
Title: Improvements in the manufacture and production of diazo dyestuffs
IPC: C09B31/043
Filed: 1933-09-06
Abstract: Secondary disazo dyes suitable for dyeing cellulose esters and ethers are made by coupling a diazotized aminoazo compound with an amine of the benzene series having at least one hydroxyalkyl group attached to the nitrogen atom, the components being free from sulphonic and carboxylic groups.  The use of a dialkoxyaniline as middle component is excluded (cf. Specification 403,388).  Fast clear brown, red or violet shades are obtained.  The dyes: a p-nitraniline --> a primary amine methylated in the nucleus --> an N-oxyalkyl-m-toluidine are of special value.  In examples, the following dyes are described: (1) p-nitraniline --> a -naphthylamine --> 1-hydroxyethylamino-2-methoxy-5-methylbenzene (wine-red); (2) m-nitraniline --> m-toluidine --> N-hydroxyethyl-N-ethylaniline (blue red) or 1-hydroxyethylamino-3-toluene (yellow-brown); (3) p-aminoazobenzene --> dihydroxyethylaminobenzene (yellow-red); (4) p-nitraniline --> m-toluidine --> 1-hydroxyethylamino - 2 - methoxy - 5 - methylbenzene (brown-violet); p-nitraniline --> 1-amino-2 : 5-dimethylbenzene or 1-amino-2-methoxy - 5 - methylbenzene --> 1-hydroxyethylamino - 2 - methoxy - 5 - methylbenzene (violet - brown) or 1 - hydroxyethylamino - 3 - methylbenzene (pure brown). Lists of other components are given in the Specification. Specifications 251,155, 270,428, and 274,823, [all in Class 15 (ii)], also are referred to.
Patent GB-591109-A (GB)
Title: Combined excavating and transporting machine for deep face stripping in open-cast mining
IPC: B65G65/28
Filed: 1944-12-11
Abstract: 591,109. Excavating - machines. BARNES, W. Dec. 11, 1944, No. 24746. [Class 68 (i)] A drag line excavator a has a bucket i, which is controlled by drag and hoist lines without the use of a rigid guideway and adapted to be dragged up the face of the working, and is combined with a transporterequipment which may be either a conveyer belt or a skip f running along an arm c. As the bucket reaches the upper limit of its travel it is emptied on to the transporter, which carries the excavated material to a dumping point whilst the bucket is performing the next digging operation. The arms d and c of the transporter may be moved independently in both the vertical and horizontal planes. Specification 271,278, [Class 68 (i)], is referred to.
Patent GB-820261-A (GB)
Title: Improved derivatives of natural or synthetic rubber or of gutta percha and the manufacture thereof
Inventor: CUNNEEN JOHN IVAN
IPC: C08C19/20
Filed: 1954-08-27
Abstract: Derivatives of natural or synthetic rubber or of gutta percha are prepared by incorporating in the dry material or in a solution thereof a compound containing a thiol acid group, e.g. thiol naphthoic acid, or mono-, di-, or trichlorthiolacetic acid, the combined thiol acid in the derivatives being less than 5% by weight of the rubber or gutta percha.  The derivatives are of enhanced durability and crystallization resistance at low temperature.  Into a solution of natural rubber or into dry natural rubber on a mixing mill or in an internal mixer the compound may be incorporated in the presence or absence of a catalyst and with or without heating or ultra-violet irradiation. In an example a mixture of 10 grams of crepe rubber dissolved in 500 ml. of benzene and 0.1 grams of trichlorthiolacetic acid are heated in vacuo or in nitrogen at 100 DEG  C. for 6 hours, and the rubber derivative precipitated with alcohol and extracted with methanol.  In other examples, the rubber or rubber-like ingredients include dry crepe, dry smoked sheet, crepe solution in benzene, and gutta percha, and the thiol acid compounds include trichlorthiolacetic, a -thiolnaphthoic, mono-chlorthiolacetic, thiolstearic, thiolpalmitic, thiolbenzoic, and thioladipic acids.  Specifications 599,202, [Group V], and 820,262 are referred to.
Patent GB-400398-A (GB)
Title: Longitudinal soldering machine for the rounded sheet metal borders or edges of hollow cylindrical bodies
IPC: B23K1/16
Filed: 1932-09-08
Abstract: 400,398. Soldering can bodies &c. SCHULER AKT.-GES., L., G÷ppingen, Wurtemberg, Germany. Sept. 8, 1932, No. 25014. Convention date, Sept. 8, 1931. Class 83 (iv).] In a machine for soldering the longitudinal lapped seams of hollow cylindrical bodies, of the kind in which the edges are engaged by stops e, n on a support and form together therewith a channel r for the insertion of a solder strip and are then pressed together by a presser bar i the inner stop e at the same time receding, the presser bar and the stop n are pivotally mounted so as to be movable about spindles parallel with the supporting mandrel d. The stop e rests on a spring-pressed bolt f rotatable in the mandrel so as normally to project it outwards. The presser bar i is carried by a lever k operated by a cam m, the spindle of the lever carrying an arm o provided with an adjustable stop screw q engaging a lever p, which is mounted on the spindle carrying the stop lever n. The lever p may alternatively be operated by a separate cam. The edge of the bar i projects beyond the edge g of the work and is toothed so as to interengage with similar teeth on the stop n, when the bar is in its lower position. The bar is drilled or slotted at s so that an electrically- or gasheated soldering-iron t carried by a slide may pass therethrough to engage the seam. The slide is operated by toggle levers and links from a cam-operated rod. A number of work holders, e.g. five, may be mounted on a carrier rotated step by step, a single soldering head being carried by a fixed support, or movable soldering heads one to each work holder may be used. At the first stage the work is applied, at the second the solder strip is inserted, and at the third soldering is effected, the joint being cooled during traverse to the fourth position and the work ejected at the fifth position.
Patent GB-1442205-A (GB)
Title: Pulsation system
IPC: A01J5/10
Filed: 1973-05-25
Abstract: 1442205 Milking machine pulsation system ALFAL LAVAL AB 25 June 1974 [25 May 1973] 25040/73 Heading A1M A system for sequentially pulsing, with predetermined delay, pulsators 3a..3d controlling respective teat cup clusters 12a-12d comprises a master pulsator 1 which applies pulsation pressures to the operating chamber 5 of the first pulsator 3a causing a diaphragm 4 to reciprocate a valve 6 between a vacuum inlet 7 and a air inlet 8, and thereby apply pulsations via an outlet 9 and a conduit 11a to the associated teat cups. Each subsequent pulsator is connected to the conduit 11a-11c of the preceeding pulsator to provide a sequential pulsing of the teat cup clusters to allow the same pulsation speed for each cluster 12 with a regular phase shift between each cluster.
Patent GB-286172-A (GB)
Title: An improved process for the manufacture of potassium carbonate and other potassium salts
IPC: C01D7/00
Filed: 1927-09-22
Abstract: 286,172. BrÚgeat, J. H. Sept. 22, 1927. Hydrochloric acid; silica; potassium carbonate and sulphate.-Potassium chloride is converted into potassium silicate with liberation of hydrochloric acid by heating with silica. The silicate is dissolved in water and treated with carbon dioxide to yield potassium carbonate and precipitate silica which is used again. The carbonate may be treated to yield other salts either with an acid, for example sulphuric acid to yield potassium sulphate or by double decomposition, for example with calcium nitrate to yield potassium nitrate. The heating of the chloride with silica is effected in an electric or other furnace, and charcoal may be added to facilitate the subsequent solution in water.
Patent GB-1300700-A (GB)
Title: A driving unit for an endless chain or rope
Inventor: ADAMEK KURT
IPC: E21C29/14
Filed: 1971-04-19
Abstract: 1300700 Internal shoe drum brakes; transmittirig-mechanism; hand-levers ESCHWEILER BERGWERKS-VEREIN 19 April 1971 [20 March 1970] 25078/71 Heading F2E A chain- or rope-drive unit comprising a motor 1, an elastic coupling 3, Fig. 1, and a reduction gear 2, includes a brake 4 provided on the driving side of the reduction gear, the brake as shown in Figs. 2 and 3 including a brake drum 10, brake shoes 7, 8, a fixed plate 5 with shoelocating pin 9, operating-eccentric 6 and pulloff springs 11, 12. The brake is applied by rotating in a counterclockwise direction a pivotal member 15, from the position shown in Fig. 2, about a pivot 16 on a mounting plate 14, to the position of Fig. 3. The pivotal member 15 has a lever 19, for pulling or pushing, slidable in it. The pivotal member is connected, through a resilient intermediate member 17, to the lever 18 which operates the eccentric or cam 6. When the pivotal member is moved past the dead-centre position, the resilient intermediate member 17 may force it and hold it against a stop 25. In the applied position a bore 22, Fig. 2, in the pivotal member 15 and a bore 20, Fig. 2, in the mounting plate, may be brought into coincidence as shown in Fig. 3, whereupon a pin (not shown) may be inserted to lock the two together. The same pin may be inserted through corresponding coincident bores 21, 23, in the brake-release position. Application of the brake may open contacts in a circuit of the motor to stop the motor and to prevent its being re-started with the brake on.
Patent GB-881784-A (GB)
Title: Improvements in the manufacture of packages, especially of the infusion bag type
IPC: B65D85/808
Filed: 1959-07-22
Abstract: 881,784. Tea &c. infuser bags; packaging. WELIN-BERGER, J. M. G. July 22, 1959 [Aug. 2, 1958; Oct. 29, 1958], No. 25131/59. Classes 94(1) and 94(2). A perforated tubular blank 1 of thermoplastic material, e.g. polythene, with flattened edges 2, Fig. 2, is reshaped to displace the edges 2 to the middle of the flat sides, Fig. 4. Then one end is closed by heat sealing. The reshaping creates a tension in the material which tends to part the edge portions, while the original edges 2 act as stiffeners and facilitate the filling of the bag with tea. The reshaping operation should be performed before the blank is cut off from the original length of tubing and may be done by a single arrangement of rollers. By reshaping, and folding, a perforated tubular blank of double length, a twin bag may be formed, Fig. 6, with the four end walls interconnected and closed by a common heat seal 11a 11c, Fig. 5, in which an opening 11b may be left between the bags. After each bag has been filled its remaining open end is closed by heat sealing. One end of a bag string 14 is fixed in the common seal and the tag and string introduced through the opening in to the space between the individual bags 10a, 10b. A V-shaped spacer 12 may be added. The blanks may be cut from a tube having unequal wall thicknesses so that, when reshaped, the original thin portions B, Fig. 9, are in the middle of the flat sides and the original thick portions A are at the edges. The stiffness of the material may also be varied by altering the distribution of the perforations.
Patent GB-443439-A (GB)
Title: Improved self-aligning attaching, connecting or coupling means
IPC: A63B53/02
Filed: 1934-08-31
Abstract: 443,439. Rod couplings. BOWSER, G. E., 9, Neville Road, and HARDING, W., 57, Regent Road, both in Leicester. Aug. 31, 1934, No. 25148. [Class 99 (i)] [See also Group XV] In connecting two members together to make a friction-tight joint, additional selfaligning coupling means are provided which are secured against longitudinal movement in the associated parts to be connected, one or each coupling element being mounted so as to be capable of limited lateral play for the purpose of compensating for any irregularity which would prevent proper alignment of the parts of the joint. The invention is described with reference to golf clubs and in the form shown in Fig. 1, a tapering steel shaft 2 makes a friction joint with the hollow tapering socket 1a of a head 1. The additional coupling means comprise a bolt 3 rigidly fixed in the hollow shaft and a nut or bush 4 mounted on a rivet 4b in such a way as to have limited play in all lateral directions. A resilient cushion, e.g. of rubber, may be inserted between the bush 4 and the socket 1a. In a modification, Fig. 3, the bush 4 is rigidly held and the bolt 3c has a round head loosely mounted on a rivet 3x. In the case of a wooden club the shaft may be of metal or of wood reinforced with metal and the neck or socket of the head is reinforced by inner and outer metal sleeves. Shafts of different sizes or degrees of resiliency may be used with a head having a socket of a given size by the use of external sleeves fitted on the shafts and adapted to fit tightly into the socket. If the shaft and sockets are of parallel formation, the friction grip may be increased, as shown in Fig. 6, by rounding slightly the lower edge 3h of the bolt head 3g to co-operate with a seating 1c in the socket. Alternatively, the shaft may have an expansible collar, the lower end or skirt of which is split longitudinally to fit tightly over the socket. One of the screw-threaded elements may be formed with a screwdriver slot to facilitate dismantling in the event of breakage of one of the parts. To increase the fractional grip, one or both elements of the joint may be magnetized.
Patent GB-906741-A (GB)
Title: Improvements in or relating to transistor current switches
IPC: H03K17/0416
Filed: 1960-07-19
Abstract: 906,741. Transistor switching circuits. CANADA, MINISTER OF NATIONAL DEFENCE. July 19, 1960 [Sept. 18, 1959], No. 25153/60. Class 40 (6). In a transistor switching circuit comprising a first transistor having resistors in the collector and emitter supply leads and a second transistor of complementary type having its base connected to the collector of the first and its collector connected to the load so that a signal applied to the base of the first transistor causes the second transistor to be sate rated and to pass current to the load, a rectifier is provided to pass current from the collector supply of the first transistor to the emitter supply of the second when the second transistor is cut off. In the Figure a positive voltage may be applied to the base of the transistor T1 to cause the transistor to conduct. The collector circuit includes the low impedance of the emitter base path of the second transistor so that the transistor T1 does not saturate, its output current being determined by the current through resistor R1. The second transistor however does saturate. When the input terminal goes negative the first transistor cuts off and current flow through resistor R2 clears the stored charges from the base of the second transistor so that this transistor also cuts off, the voltage at its collector rising until diode T1 conducts. The conductivities of the two transistors may be reversed (Fig. 2, not shown) and the load supply source may be switched on after the transistors have become conducting to reduce the dissipation.
Patent GB-361920-A (GB)
Title: Improvements relating to filtering apparatus and a method of operating the same
IPC: B01D35/31
Filed: 1930-08-22
Abstract: 361,920. Filters. SWEETLAND, E. J., Piedmont, California, U.S.A. Aug. 22, 1930, No. 25172. [Class 46.] A rotary or other suction filter is placed in a closed casing which is charged with compressed air or other gas during operation of the filter. As shown a rotary disc filter with the trough 18 into which it dips is supported on rails 6 in the casing 1. Gas under pressure is supplied to the casing through a pipe 33. The liquid under treatment is supplied to the trough 18 through a pipe 32 which can be connected by a union 47 to a main 46. The distributing valve at the end of the filter shaft is connected by hose pipes 23, 54, 60 and mains 48, 52, 57 to suction for withdrawing the filtrate and for drying the cake and to a source of gas under pressure for facilitating the detachment of the cake from the sectors of the filter discs. The cakes are detached by scrapers 30 and directed by an apron 31 into a hopper 9, along which the matter is moved by a screw 10 to a discharge valve 38. The filter is rotated by an electric motor 24, to which current is conveyed through leads 44. A manhole 39 may be provided with an air lock chamber through which an operator can enter the casing while the filter is working. Liquid overflowing from the trough 18 collects in the bottom of the casing and is discharged through a float-controlled valve 13 and pipe 12. A compresser 61, Fig. 3, forces gas into a tank 62 from which it is delivered through a pressure-control valve 64 to the main 33 and at a slightly higher pressure to a tank 65 connected to the main 57. Liquid under treatment is supplied from a tank 69 by a pump 70 to the main 46 and tne liquid discharged through the pipe 12 is returned to the tank 69. When the end cover of the casing is removed the filter with the trough 18 and the motor 24 can be withdrawn on rails 71. Nitrogen, carbon dioxide, and sulphurous gas are mentioned as suitable gases which can be supplied to the casing instead of air.
Patent GB-1017667-A (GB)
Title: Improvements in or relating to inductance coils
Inventor: MICHAEL PETER COLIN
IPC: H04B15/02
Filed: 1962-07-02
Abstract: 1,017,667. Interference suppression. K. L. G. SPARKING PLUGS Ltd. July 1, 1963 [July 2, 1962], No. 25228/62. Heading F1B. [Also in Division H1] For use as a suppressor in vehicle ignition systems an inductance coil comprising three winding positions 11, 12, 13 wound successively in opposite directions and positioned on a common magnetic core, is enclosed in the screened cap attached to a sparking plug. The winding portions may be mounted on individual formers. Dimensions and other details of a suitable arrangement are given.
Patent GB-983635-A (GB)
Title: A quick-acting direct-current circuit-breaker
IPC: H01H3/22
Filed: 1961-07-12
Abstract: 983,635. Automatic circuit-breakers; protective arrangements. LICENTIA PATENTVERWALTUNGS-G.m.b.H. July 12, 1961. [July 27, 1960], No. 25229/61. Headings H2B and H2K. A D.C. circuit-breaker has two independently-operable release devices, one being electromagnetic and energized directly by the current through the circuit-breaker, and the other being electrodynamic and controlled by a voltage derived from the current. The circuit-breaker comprises a moving contact lever 7 and a trip lever 11 pivoted on a pin 10 which is biased by a spring. The lever 7 is maintained in the closed position shown by a latch 14 and by a holding electromagnet 1 against the bias of an opening spring 18. A release electromagnet 2 may attract an inpulse armature 3 which strikes the lever 7 to open it and turns the trip lever 11 to release the latch 14. The electrodynamic release comprises an impulse coil 19 and a short-circuited coil 20, the latter being connected to the contact lever 7 and to a trip lever 17 so that when the coil 20 is repelled by the coil 19, the contact lever 7 is moved and the latch 14 is released to open the circuitbreaker. The coil 19 is energized when the voltage drop across a series resistor 28, after amplification in a transistor amplifier stage V, causes a transistor flip-flop stage M to change its state and render a power transittor T 3  conducting. This causes a pulse through a transformer 30 to strike a spark-gap 31 so that a charged capacitor 27 can discharge through the coil 19. One release may respond to forward current and the other to reverse current, or the electromagnetic release may respond to forward current and the electrodynamic release may respond to both forward and reverse current.