baber/WOPTO huggingface dataset:
Patent GB-1476820-A (GB)
Title: Time-ratio control for a reversible direct current traction motor
IPC: B60L11/18
Filed: 1975-08-21
Abstract: 1476820 Control of D.C. motors ALLIS-CHALMERS CORP 21 Aug 1975 [3 Sept 1974] 34793/75 Heading H2J A control for regulating the speed and direction of rotation of a reversible D.C. vehicle traction motor energized by unidirectional pulses of current supplied from a battery BATT through a semi-conductor power switch PS comprises a variable delay RC timing circuit VDS having a capacitor C9 in series with a speed regulating potentiometer SPEEDPOT having a resistance element provided with a midtap and a movable wiper W, movement of the wiper in either direction from the midtap increasing the resistance in the timing circuit so that the time duration and duty cycle of the pulses can be regulated to control the motor speed, and a direction control for completing respective energizing circuits F and R to forward and reverse contactors F1, F2, R1, R2 when the wiper is moved in opposite directions away from the midtop. The circuitry for controlling the power switch viz the oscillator OSC, guard pulse monostable circuit GPM, pulse width modulation logic circuit PWM, variable delay circuit VDS and drive current regulator DCR is known (see U.K. patent Specification Nos. 1,448,496; 1,448,497). When the wiper W is moved in one direction or the other a switch S1 or S2 is closed and also a circuit RT senses movement of the wiper and provides an output to a contactor logic circuit CL which provides desired interlocking and sequencing between vehicle seat switch (not shown), ignition switch (not shown), direction and speed selecting lever DS and forward and reverse contactors. When a correct sequence of operations is performed the circuit CL provides an output which causes a transistor Q22 to be turned on to energize the circuit F or R depending upon which switch S1 or S2 is closed. The circuit RT also inhibits the circuit PWM when the wiper is in the neutral position. A potentiometer failure circuit PF is also provided and which inhibits the circuit PWM if the potentiometer should fail (open circuit). Plugging operation is also described and the control discriminates between the condition when motor 10 is acting as a generator and vehicle travel is opposite to that selected by lever DS so that plugging is desirable, and the condition when the motor is acting as a generator but direction lever DS has not been reversed so that full power (rather than plugging) is desired.
Patent GB-1255428-A (GB)
Title: Programming arrangements
IPC: G05B19/06
Filed: 1970-07-17
Abstract: 1,255,428. Sensing records. SIEMENS A.G. 17 July, 1970 [19 July, 1969], No. 34906/70. Heading G4M. [Also in Division H1] Yokes 5 are tilted to one or other of two stable positions according to the presence and absence of perforations in a punched card or tape 10 so as to complete a low reluctance flux return path for the associated magnet 1, the return paths including a magneto-resistive-element 8. A common magnet may be provided for all the yokes, and the yokes may have associated pins which detect the presence/absence of perforations to tilt the yokes, or, as shown, the yokes may be provided with projections 9a, 9b.
Patent GB-821869-A (GB)
Title: Centrifugal blasting wheel
IPC: B24C5/06
Filed: 1956-11-15
Abstract: 821,869. Centrifugal blasting wheel. WHEELABRATOR CORPORATION. Nov. 15, 1956 [May 7, 1956], No. 35004/56. Class 60. A centrifugal blasting wheel comprises apair of spaced side wallforming disc members intercon. nected for rotational movement together and having pairs of facing slots extending radially inwardly from the periphery of the members and blades extending crosswise between the members and received in fitting relation within the slots, ribs extending perpendicularly from the lateral edges of the back face of each blade and which are received in the slots when in the assembled relation, crosswise aligned grooves in the edges of the ribs intermediate the ends thereof, crosswise aligned grooves in the wheel disc members contiguous with the slots and positioned to be aligned with the grooves in the ribs when the blade is in proper position for use to provide continuous crosswise extending openings therebetween, a pair of head members having a cross-section corresponding to the cross-section of the opening formed by the contiguous grooves for receiving the heads in fitting relation therein, and means for releasably displacing the head members laterally into the openings for locking the blade against relative endwise movement in the wheel disc members. The disc members 10, 12 are secured together by studs 14 and the disc 10 is secured by bolts 16 to a hub 18 secured on the end of a drive shaft 20. An impeller secured by a bolt 42 to the end of the shaft 20 and comprising vanes 38 and a conical lead-in section 40 receives abrasive from a hopper 46 through feed pipe 44 and delivers it to the blades 22 through a discharge opening in a control cage 28 rotatably adjusted in a stationary housing 26. The blades 22 are of hardened metal and are of increasing thickness outwardly to compensate for greater wear at increasing radius. The lateral edges of the blades have ribs 54, 56, 58, 60 slidably received in radial slots 62, 64 in the discs 10, 12. Recesses 66 in the lateral edges of the blade break up the air currents and break up the channels through which abrasive may travel and also reduce the machining necessary. The ribs 58, 60 have crosswise aligned semi-circular grooves 70, 72 which, when the blade is in its correct position, register with semi-circular grooves 74, 76 in the discs 10, 12 contiguous with the slots 62, 64 so providing circular openings which receive head members 82, 84. Each head member has an inner cylindrical section 86 of the same diameter as, but of less length than, the opening, and a tapered section 88 received in a tapered recess 78 or 80 in the discs contiguous with the grooves therein ; the heads are mounted on limbs 92, 94 of a loop 90 of spring wire so that they are urged apart and into the openings to secure the blade in position. Alternatively the head members may be secured to telescoping members with an interposed spring. The grooves may be of other than semi-circular shape.
Patent GB-620482-A (GB)
Title: Trinuclear cyanine dyes and photographic light-sensitive elements containing them
IPC: C09B23/12
Filed: 1945-12-28
Abstract: Trinuclear cyanine dyes are prepared by reacting a methylene-bis-azole with an intermediate of the formula <FORM:0620482/IV (c)/1> wherein Z represents the atoms to complete a 5- or 6-membered heterocyclic ring and n is 1, 3, or 5. Intermediates specified are 4-(g -acetanilidoallylidene) - 1 - benzthiazolyl - 3 - methyl-5-pyrazolone and -1-phenyl-3-methyl-5-pyrazalone; 5-acetanilidomethylene- 3-allyl-rhodanine, - 3 - phenylrhodanine, - 3 - ethylrhodanine, and -3-ethyl-2-thio-2 : 4-(3:5)-oxazoledione; 5 - acetanilidopropadienylidene-3-allylrhodanine; 5-(g -acetanilidoallylidene)- 2-diphenylamino-4-(5)-thiazolone, -3-ethyl-2-thio-2 : 4-(3 : 5)-oxazoledione, and -3-ethyl-1-phenyl-2-thiohydantoin; and 5-(5-acetanilido-D 2 : 4 - pentadienylidene) - 3 - ethylrhodanine.  The condensing agent may be pyridine or a derivative thereof such as dimethylpyridine, used with a basic catalyst such as triethylamine or sodium carbonate.  2 - Diphenylamino - 4 - hydroxy - 5 - (o  : o  - dibenzthiazolyl - butadienyl - 1 : 3) - thiazoline is prepared by refluxing together methylene-bis-benzthiazole and 5-(g -acetanilidoallylidene)-2-diphenylamino-4-(5)-thiazolone with pyridine and triethylamine.  2 - Thio - 3 - ethyl - 4 - hydroxy - 5 - (o  : o  - dibenzthiazolyl - butadienyl - 1 : 3) - dihydroxazole, 1 - phenyl - 2 - thio - 3 - ethyl - 4 - hydroxy - 5 - (o  : o  - dibenzoxazolyl - butadienyl - 1 : 3) - dihydrimidazole, 1 - phenyl - 3 - methyl - 5 - hydroxy-4-(o  : o -benzoxa-benzthiazolyl-butadienyl - 1 : 3)-pyrazole, 2 - thio - 3 - ethyl - 4 - hydroxy - 5 - (o  : o -dibenzthiazolyl - hexatrienyl - 1 : 3 : 5) - dihydrothiazole, 2-thio-3-allyl-4-hydroxy-5-(b  : b -dibenzthiazolyl-ethenyl)-dihydrothiazole, 2-thio-3-allyl-4-hydroxy-5-(b  : b -dibenzoxazolyl-ethenyl)-dihydrothiazole, 2 - thio - 3 - allyl - 4 - hydroxy - 5 - (b  : b  - benzoxa - benzthiazolyl - ethenyl) - dihydrothiazole, 2 - thio - 3 - allyl - 4 - hydroxy - 5 - (o  : o -dibenzthiazolyl-butadienyl - 1 : 3)-dihydrothiazole, 6-hydroxy-5-(o : o -dibenzthiazolyl-butadienyl-1 : 3) - 2 : 4-pyrimidinedione, and 2-thio-4-oxo-6-hydroxy-5-(o  : o -benzoxa-benzthiazolyl-butadienyl-1 : 3)-tetrahydropyrimidine are similarly prepared.  In a modification, the dyes may be reacted with esters such as methyl iodide to give quaternary compounds, and these further reacted with cyclammonium bases or salts having a reactive methyl group in the alpha-position to the nitrogen atom (e.g. N-methyl-2-methylbenzthiazole) in the presence of a condensing agent to give further dyes.  Specifications 489,335 and 546,527 are referred to.
Patent GB-823339-A (GB)
Title: Improvements in or relating to the distillation of ethanol
Inventor: BAECKLUND GUNNAR
IPC: B01D1/28
Filed: 1957-11-11
Abstract: <PICT:0823339/III/1> Ethanol is separated from aqueous solutions thereof by stripping the solution in a beer still or stripping column, condensing part of the vapours obtained in a steam generator to produce steam which is compressed and used as heating medium in the stripper, introducing part of the vapours from the stripper into a rectifying column into which ethanol with a water content below that of the azeotropic mixture is introduced as reflux, condensing the overhead vapours and withdrawing the condensate as product. The vapours are preferably dehydrated and condensed and part of this condensate is used as the reflux to the rectifying column. Aqueous ethanol, e.g. mash containing 7 or 8% by weight of ethanol is introduced by line 7, heated and introduced to a preliminary stripper 2 containing 15-20 plates where volatile impurities such as acetaldehyde and esters are removed.  Purified mash passes by line 14 to stripping column 1 containing 10-20 plates fed with live steam from ejector 23.  The vapours partly pass by line 18 to be used as heating medium for the stripper 2 and partly to steam generator 16. Steam produced in the generator by condensation of the vapours passes by line 22 is compressed in the ejector 23 and passed to the stripper.  Water from the base of the stripper is pumped by line 19 to the steam generator from which excess is withdrawn by line 21. Vapours from the stripper are further condensed in condenser 17 to provide reflux for the stripper.  The amount of condensation in the condenser 17 may be regulated according to the temperature in the following column 3, more vapours being passed to the column if the temperature falls. Remaining vapours pass to rectifying column 3 having 10-20 plates and fed with a reflux containing less water than the azeotropic mixture by line 38.  Bottoms are passed by line 29 for use as reflux to the stripper.  Overhead vapours pass by line 28 to the dehydrating column 4 fed with a water-absorbing substance such as glycerol, acetates or, more preferably, ethylene glycol by line 30. This column may contain 15-20 plates in the lower part and 5-10 in the upper part.  Vapours pass to heat exchanger 8 and condenser 34 to give liquid which is withdrawn as product by line 39 and returned as reflux to columns 3 and 4 by lines 38 and 37. The product may be anhydrous.  Bottoms from column 4 containing glycol, ethanol and water pass to column 5 where ethanol is stripped by added live steam and returned to column 4.  Bottoms from column 5 are fractionated under reduced pressure in column 6 to give glycol as bottoms which are pumped back to column 4 and water overhead.  Fused oil may be withdrawn by line 13 and also if desired from one or more plates of column 3.  The pH on the lower plates of column 3 and of the reflux to stripper 1 is preferably maintained at at least 4 by adding an alkaline solution to a higher plate of column 3 and allowing this to flow countercurrent to the vapours.
Patent GB-604735-A (GB)
Title: Improvements in coil-winding apparatus
IPC: H02K15/04
Filed: 1945-12-31
Abstract: 604,735. Winding coils. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Dec. 31, 1945, No. 35212. Convention date, Dec. 30, 1944. [Class 120(ii)] [Also in Group XXXV] Saddie-shaped , &c. coils for electric motors, cathode-ray tubes &c. are wound on apparatus comprising a first part having a cylindrical surface 13 and furnished with vanes 32, 34, and a second part 15, detachably attached to the first part as by a screw 17 and provided with vanes 31. 33, the first part being of greater length than the second and the two parts between them providing two longitudinal slots joined by curved end slots, so that upon rotating the winding head by its shaft 3, a wire strand fed thereto is guided by the vanes into the slots to form a saddle-shaped &c. coil 23. The winding head is preferably provided with a rotating pointer and a dial so that the number of turns put in the coil may be observed.
Patent GB-522253-A (GB)
Title: Improvements in or relating to rotary liquid pumps and motors
IPC: F04C2/08
Filed: 1938-12-02
Abstract: 522,253. Rotary pumps. UNGAR, G. A. Dec. 2, 1938, No. 35237. Convention date, Dec. 2, 1937. [Class 110 (ii)] In rotary engines or pumps of the gear-wheel, or Root's-blower types, the rotors are balanced radially and axially, and the ends of the rotors are sealed by rotary rings 42, 43, and fixed members 45, 46. Fig. 1 shows a driving gear 38 hollowed out to accommodate an extension 37 of the casing. The second gear 40 rotates on a stationary shaft 41 to which is secured the member 45 which is hollowed out to allow the rotation of the ring 42, which is attached to the gear 38. The member 46 is allowed to slide axially on its key 41<1>, against the action of a spring 50, and may act as a byepass, under excessive pumping pressure. More than one wall may be allowed axial freedom. The axial length of discharge port 60 is slightly greater than the length of the rotor 38. Recesses 62, 73, are in communication with opposite ports 60, 71, for pressure-balancing purposes. Similar recesses are provided to balance the effect of the pressures in the ports 60, 71, on the gear 40. Grooves 94, 97 are also connected to ports 60, 71, by means of recesses in the member 45, to admit fluid for balancing purposes. Radial grooves 97, 98, Fig. 11, in the end faces of the teeth of gear 40, allow fluid which would otherwise be trapped in pockets 99 formed by the meshing gears, to escape to recesses in the members 45, 46. The pump may be divided into two or more parts on the same shafts 33, 41, with partition members corresponding to the end members 42, 43, 45, 46. In this case, the teeth of the gears in the different parts are relatively displaced angularly, to secure a delivery free from pulsations. Gears having helical, or doublehelical teeth, may be used. Rotor members having four, three, or two teeth, Fig. 21, may be utilized in pumps divided up by partition members. The teeth are angularly displaced relative to each other. The shape of the teeth are involute in part.
Patent GB-348664-A (GB)
Title: Improvements in processes of treating ores and materials containing iron in combination with sulphur
IPC: C22B1/08
Filed: 1929-11-18
Abstract: A development of the process of Specification 321,911 for treating ores or other materials containing iron in combination with sulphur, especially iron sulphide ores, for the recovery of iron oxide and sulphur, wherein the iron is converted in one stage to ferrous chloride, and the sulphur displaced is recovered as dilute sulphur vapours at temperatures at which the ferrous chloride has no appreciable vapour pressure, consists in oxidizing the ferrous chloride in a second separate stage by air, preferably preheated, with or without chlorine, to ferric oxide and a mixture of inert gas and ferric chloride vapours, or ferric chloride vapours and chlorine, or chlorine, and in employing the mixture in chlorinating fresh raw material.  In a modification, the ferric chloride vapours are condensed and the inert gas, or mixture of chlorine and inert gas removed, this mixture, if desired, being employed in the first stage, and the ferric chloride revaporized and burned with air to give ferric oxide, and chlorine and inert gas for re-use in chlorinating fresh raw material.  Alternatively, the ferric chloride vapours produced in the first stage are burned directly with air, with or without producer gas, to give pure ferric oxide and chlorine and inert gas for use in the chlorination of fresh raw material.  Make-up chlorine is added at any convenient point.  The mixture of gangue, ferric oxide, and other values, if present, from the second stage is worked up in a known manner.  Specifications 306,691, 316,404, and 321,911, [all in Class 1 (iii), Oxides &c., Metallic], are referred to.
Patent GB-793918-A (GB)
Title: Improvements in or relating to axle boxes for rail vehicles
IPC: E02B7/54
Filed: 1956-11-19
Abstract: 793,918. Axle-box bearings. SCHWEIZERISCHE LOKOMOTIV-UND MASCHINENFABRIK. Nov. 19, 1956 [Nov. 23, 1955], No. 35255/56. Class 12 (1). In a railway-vehicle axle-box comprising a casing 1 supported on an axle 2 by cylindrical roller bearings 3, an axial thrust ball bearing 6 has its inner race secured to the shaft 2 and its outer race secured to a sleeve 10 which has limited axial freedom with respect to the casing 1. The sleeve 10 carries a prestressed spring 14 located between a shoulder 12 and a screwed ring 13. After a predetermined movement of the axle and bearings towards the left, further movement is resisted by abutment of the spring 14 against a ring 18 secured to a cover 17. This may cause the spring 14 to compress and move away from the ring 13 a distance a, Fig. 2. Longitudinal grooves 15 in the ring 10 engage correspondingly formed longitudinal keys on the cover 17. The spring 14 consists of several cup springs. In a modification, the outer race of the bearing 6 is fixed in the case 1 and the inner race is attached to a sleeve 10, Fig. 3. The spring 14 is disposed between an abutment ring 13 and a shoulder adjacent the inner race of the bearing 6. In a further modification, shown in Fig. 6, a helical spring 14 is located within the sleeve 10.
Patent GB-620178-A (GB)
Title: Improvements in or relating to shoe welts
IPC: A43B15/00
Filed: 1946-11-28
Abstract: 620,178. Welts for footwear. TRIGGS, W. W. (Wright-Batchelder Corporation). Nov. 28, 1946, No. 35351. [Class 17 (ii)] A shoe welt designed to eliminate the beating-out operation comprises a horizontally extending body portion 1 for attachment to the outsole and a pre-formed inner portion 2 extending at right-angles to it to receive the inseam stitching, with a stitch-receiving groove 4 in the inner angle. The outer angle 3 between the portions 1, 2 may be bevelled. Fig. 5 shows a modified form of welt embodying also a bead 24. After the inseam stitching, the portion 2 of the welt, margin of upper and insole lip are trimmed in usual manner, the body portion remaining in its desired final position during the inseaming. The welt may be made from synthetic plastic material. Specification 466,738 is referred to.
Patent GB-881450-A (GB)
Title: Vehicle for transporting invalids
IPC: A61G5/00
Filed: 1957-11-14
Abstract: 881,450. Perambulators. HALLEWELL, J. E. Nov. 14, 1957, No. 35563/57. Class 108(1). A vehicle for invalids has two rear wheels and a forward castor wheel, a seat forming part of the chassis and a steering handle or tiller, 19, 20 comprised by a single bent member which includes a vertical limb 19 forming a steering spindle for the front castor wheel 15. To the seat 1 are attached struts 3, 4 carried by the tube 5 which houses a wheeled axle, and a forward strut 2 secured to the block 8 in which the front wheel 15 is mounted as a castor. The handle 19, 20 is detachable by reason of the pin and slot connection 18.
Patent GB-1275800-A (GB)
Title: Improvements in or relating to fastener elements
IPC: B21D39/00
Filed: 1969-09-24
Abstract: 1275800 Rivets WARREN FASTENER CORP 24 Sept 1969 [25 Sept 1968 31 Dec 1968] 35581/71 Divided out of 1275799 Heading F2H A fastener 26 for securing an article 24 to a support 22 without piercing the latter comprises a cup-shaped element having longitudinal slits 36 extending along the tubular body portion from its open end, the base 32 of the fastener being secured by welding to the support 22 and the tubular body portion being passed through a hole 28 in the article 24 and deformed radially outwardly (Fig. 4) to hold the article 24 against the support 22. The riveting action is performed using the gun described in Specification 1,275,799 (see Division B3). The fastener can be formed from a flat blank 40 (Fig. 1) by folding up its arms 44, or by forming a cup from a sheet metal blank using an eyeletting machine, the slits being cut after forming.
Patent GB-899768-A (GB)
Title: Improvements in or relating to top lifts for shoes
IPC: A43B21/00
Filed: 1958-11-05
Abstract: 899,768. Top lifts. STUBBE, F. Nov. 5, 1958 [Nov. 13, 1957], No. 35594/58. Class 17(3) A top lift is constructed of an outer layer 1 of rubber and a reinforcing harder layer 2 of polyamide or an acrylonitrile-butadienestyrene copolymer. The layers may be fixed to each other by means of an adhesive bond, in which case the adjacent surfaces may be roughened, as at 3a, 3b and 3c, or by inserting an adhesive foil of celluloid between the layers, or by spraying the reinforcing layer in a liquid state on to the outer layer formed with perforations to receive dowels of the plastic material. The top lift may be attached to the heel by tacks, or by welding.
Patent GB-1131663-A (GB)
Title: Improvements in or relating to telephone systems
Inventor: CURSON GEOFFREY CHARLES
IPC: H04M11/10
Filed: 1966-08-09
Abstract: 1,131,663. Dictation systems. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. 28 July, 1967 [9 Aug., 1966], No. 35673/66. Heading H4K. In a private exchange in which a subscriber having access by dialling or otherwise to dictation equipment is provided with keys for controlling the operation thereof through the medium of a selective receiving circuit SRE, all the control signals consist primarily of an earth connection to the loop to energize a differential relay DF. The keys, as shown, correspond to (1) start/stop (KSZ), (2) rewind for playback (KRW), (3) letter index for marking a desired part of the record (KLI), and (4) call supervisor (KCS). In each case relays DF, CS pull up in turn and then fall back, and resistance R1 and rectifiers MR2, MR3 associated with the keys ensure the operation of (1) neither of two relays X, Y, (2) relay X, (3) relay Y, or (4) both relays X, Y.