baber/WOPTO huggingface dataset:
Patent GB-264260-A (GB)
Title: Improvements in and connected with synchronising gearing
IPC: G05D13/00
Filed: 1925-10-23
Abstract: 264,260. Carr, L. J. P. Oct. 23, 1925. Differential speed indicators.-Relates to differential governors of the type including a differential gear between two shafts, such as screw propeller shafts, driven by steam engines with a spider connected to a valve controlling steam to one engine whereby the engines operate synchronously and consists in providing the idler with a circular band with dots or colored areas which give an indication as to the relative speeds of the two shafts. In the transmission there is a slip coupling which operates when the spider rotates to an extent beyond the range of the by-pass valve. The two power shafts actuate shafts 1<a>, 2<a>, on which are the differential bevels 1, 2, Fig. 1, which are geared by bevels 3<a> to a spider 3 carrying a circular band 5, the end face 5b of which is provided with dots which can be observed through slots in the fixed casing 7. When the speeds of the main shafts are equal the dots on the band are staticnary.
Patent GB-158096-A (GB)
Title: Improvements in or connected with artificial limbs
IPC: A61F2/60
Filed: 1919-10-29
Abstract: 158,096. Blatchford, C. D., and Blatchford, W. A. Oct. 29, 1919. Limbs, artificial.-Artificial legs are so constructed that when the weight of the body is on the toe or heel the knee joint is locked by a clutch carried in the calf member. The calf a carries a fixed pin h to which is attached the male portion g of a friction clutch, the female part of which is operated by a forked bell-crank lever o pivoted on a pin p and having a bifurcated lower end connected to a stirrup r supporting a selector bar v. Stops x, w prevent upward movement of the bar v, which is connected to the pivoted foot by rods y, z. A strap j fixed to the front of the thigh is connected to the clutch member i by the screw l, and a spring 12 and link 10 connects the foot to the clutch member i. If the heel or the toe is pressed on the ground, the clutch is locked through one of the rods y, z and bar v, stirrup r, :and lever o. When the limb is vertical or is lifted from the ground, the clutch is kept free by springs m, u. In the sitting-down position, the clutch is free and the member i is rotated against the tension of the spring 12 by the strap j.
Patent GB-1373596-A (GB)
Title: Regulation arrangement for a linear loading device
IPC: G01N3/36
Filed: 1972-06-07
Abstract: 1373596 Automatic control systems CARL SCHENCK MASCHINENFABRIK GmbH 7 June 1972 [12 April 1972] 26621/72 Headings G3N and G3R A linear loading device, e.g. a hydraulic dynamic testing machine, is regulated for controlling either displacement or force in accordance with a reference value which is the integral of the error between the actual value of a parameter of the device and a further reference value. The object is to eliminate the reaction from a load when this consists of a spring mass such as a vehicle axle. As shown, a load is represented as a mass m on springs cl, c2 with damping d, and this is subjected to loading by a double acting hydraulic cylinder 1 controlled by a valve 2. The valve is controlled by an electrical regulator 11 in response to the difference between the signal from a displacement transducer 9 amplified at 10 and a reference value SS on line 17, which is the difference between the output from a load cell 3 and a programmed reference signal FS integrated at 8. An additional input to the regulator may be derived from a load position transducer 12. If the load is a complex one a single equivalent mass may be provided to represent it for the purposes of this signal. In Fig. 2 (not shown) the lower end of the load is also moved, e.g. by a crank, and the position transducer 12 is attached to this. Modifications. The load cell may be at point 15 instead of 14, and it may provide the primary control signal to regulator 11 the reference for which is derived by integratory displacement error; in this case the displacement signal is also supplied directly to the regulator 11. An addition load cell may be provided at 15 supplying a signal to a third imput of comparator 7.
Patent GB-1061689-A (GB)
Title: Metal bending apparatus
IPC: G05B19/18
Filed: 1965-06-23
Abstract: 1,061,689. Bending. CASE INSTITUTE OF TECHNOLOGY. June 23, 1965 [June 23 1964], No. 26630/65. Heading B3E. [Also in Division G3] In a metal bending apparatus, Fig. 6, a beam 15 is supported between abutment posts 11, 12 and bent by a lug 14 of an hydraulic ram. The angle by which the beam has been bent is measured by a measuring system comprising digital photoelectric quantizers 24a, 24b mounted on angle sensors 29, 30 coupled by a rod 27 having a straight edge 28. The digital measurement from the quantizers is compared in a data system with the desired angle of bend and the ram controlled accordingly. The ram is then released, the spring- back measured and an increased angle of bend derived and applied. This procedure is repeated until the beam assumes a permanent angular deflection equal to the desired value. In a programme controlled system, Fig. 20, command data on a punched tape 159 is read into desired angle register 39<SP>1</SP> and the registers in multipliers 166, 162. Clock pulses are generated by a multivibrator 157 and enter at a rate determined by multiplier 166. The beam to be bent is advanced by a beam advancer 158 synchronized with the tape feed. The bending is measured by quantizers 24a 24b and the quadrature pulse trains are analysed by direction and sensing logic circuits 42a, 42b to derive from an anti-coincidence circuit 43 pulse trains representing the angular deflection of the beam. The pulse trains are fed to a rate limiting anti-coincidence circuit 44. The state of a bidirectional binary counter 45<SP>1</SP> represents the error in the control loop and through a digital to analogue converter 26 controls a valve 22<SP>1</SP> for an hydraulic actuator 13 so as to reduce the error to zero. The return of the actuator 13 is then initiated and the spring-back read as the count in an errorcounter 46<SP>1</SP>. A pulse generator 161 reads the counter 46<SP>1</SP> and the pulse train, through a multiplier 162 set at a factor between 0 and 2 determined by experience, is fed to the register 39<SP>1</SP>. A counter 167 determines the number of times the sequence of bending and determining apring- back is repeated. In an alternative arrangement the desired angle of bend is set up on dial switches and the sequence of bending and determination of spring back is carried out manually.
Patent GB-1350652-A (GB)
Title: Electric dry shavers
IPC: B26B19/10
Filed: 1971-04-19
Abstract: 1350652 Dry showers RONSON CORP 19 April 1971 [13 April 1970] 26689/71 Heading B4B An electric dry shaver comprises facial shaving means 15, 16 mounted on a housing 12 and driven by a motor contained therein, a long hair trimmer 45, 48 and means 34 for selectively coupling the trimmer with the prime mover, the coupling means being movable between positions in which it is engaged with or disengaged from the prime mover. The coupling member 34 is pivotally connected to a movable blade 48 of the trimmer and is provided with a pair of legs 41, 42 adapted to be engaged with a drive pin 14 of the motor. The legs are normally held out of engagement with the drive pin by means of a cam 25 operated by a button 22 and arranged to act via a follower 32 on an arm 35 of the coupling as shown in Fig. 3. Upon release of the button the coupling moves under the action of a spring 54, Fig. 7, so that the legs engage the pin. In a modification, the hinging arrange. ment of the coupling with the cutter 48 shown in Fig. 7 is replaced by a projection (61), Fig. 10 (not shown) on the coupling engaging in a cutout (60).
Patent GB-861496-A (GB)
Title: Recovery process for acetylene and other gases
IPC: C07C7/11
Filed: 1959-08-05
Abstract: Acetylene is recovered from gases also containing hydrocarbon impurities and other gases by contacting with a heavy naphtha absorbent to remove hydrocarbon impurities and then with liquid ammonia to absorb acetylene and recovering the acetylene from the resultant solution.  The heavy naphtha may boil within the range 300-500 DEG  F. and is contacted with the gas at 60 to -20 DEG  F. and 30-200 p.s.i.a. in a mol. ratio to the gas of 0.01-10.  Any dissolved acetylene is removed by stripping and recycled following which the naphtha is separated from other dissolved gases and any high boiling polymers and recycled.  The gas from the first absorption is preferably mixed with 0.01-0.06 mol. of ammonia per mol. of gas to prevent freezing and contacted with liquid ammonia at -95 DEG  to 0 DEG  F. and 20-180 p.s.i.a.  Any dissolved ethylene together with some acetylene is stripped from the solution and recycled to the ammonia absorption step.  The remaining acetylene is stripped from the ammonia and washed with water.  Liquid ammonia is recycled, part being distilled to remove polymeric material.
Patent GB-785150-A (GB)
Title: Improvements relating to the treatment of distillation of synthesis gases
IPC: C10K1/12
Filed: 1955-09-20
Abstract: <PICT:0785150/III/1> Valuable substances, e.g. ammonia and sulphur compounds, are recovered from coal distillation and like gases by a two-stage washing process in which the first stage is operated so that the washing liquid is brought to a high concentration of the substance to be washed out and the second stage is operated so that the substance to be washed out is removed from the gases to the desired degree, liquid from the first stage being treated by, e.g. steam distillation, to recover the washed-out substance while liquid from the second stage is passed through an ion exchanger, the ion exchanger mass being subsequently regenerated to recover the washed-out substance.  In an application to the recovery of ammonia coal gas from a collecting main 1 passes first through a condenser 2 and then in successiion through first and second stage washers 3 and 4 respectively.  Liquor from the washer 3 is passed to an ammonia distillation column 7, the ammonia removed from the liquor being, e.g., passed into an ammonia saturator 8.  Weaker liquor from the washer 4 is in part used as washing liquid in the washer 3 and in part passed through an ion exchanger 5 or 5a which are alternately in use and being regenerated.  Part of the outflow from the ion exchanger 5 or 5a may be returned to the scrubber 4 as washing liquid.  Fresh water is also added at the top of the scrubber 4. Liquor from the collecting main 1 and the condenser 2 pass to a tar separator 6 and the liquor is passed together with the effluent liquor from the distillation column 7 through the ion exchanger 5 or 5a to recover the ammonia contained in these liquors.  The mass of the ion exchanger not in use is regenerated by sulphuric acid and the liquid obtained is passed to the saturator 8.  The liquor leaving the ion exchanger not used in the washer 4 may be passed through an acid exchanger before discharge into a river or lake.  In a modification liquor from the tar separator 6 may be mixed with the liquid from the first washing stage and treated in the column 7.
Patent GB-428048-A (GB)
Title: Improvements in or relating to edible fats and fatty oils
IPC: C11C1/04
Filed: 1933-09-30
Abstract: Cooking-fat derived from fatty acids of molecular formula containing predominantly not fewer than 16 carbon atoms is improved by forming therein free fatty acid either by partially saponifying the fat and then acidulating or by subjecting the fat to limited reaction with water in the presence of a catalyst.  The saponification may be with a caustic alkali, preferably a concentrated solution of sodium hydroxide, and the subsequent acidulation with a strong acid, preferably sulphuric or phosphoric, the fat being finally washed with water to remove the alkali salt formed, together with any excess of acid.  The hydrolysis may be effected by the use of enzymes, by treatment in an autoclave in the presence of a soap catalyst which is subsequently washed out, or by the Twitchell process using a water-soluble sulphonic acid catalyst.  The fats used include common fats, such as lard, peanut oil or hydrogenated cotton-seed oil processed to be of edible grade.  During and after the process contact of the free fatty acid with air is avoided by packing the fat in air-tight containers or by employing an inert gas such as nitrogen.  In an alkali-refined fat for use both for frying and in baked goods the final free fatty-acid content is preferably 0,25-2 per cent.  For a shortening to be used only in baked products an edible fat, alkali-refined or not, containing less than one per cent of free fatty acid is so treated that the free fatty acid content is 2-10 per cent.  Specification 414,916, [Group VI], is referred to.
Patent GB-799524-A (GB)
Title: Improvements in or relating to pulsators
IPC: G01N3/36
Filed: 1956-09-04
Abstract: 799,524. Testing endurance of materials. AMSLER, W. A. J., AMSLER, R. C., AMSLER, H. E. PEYER-, AMSLER, G. M. SCHINDLER- and AMSLER, S. B. LABHART.-, [trading as AMSLER & CO., A. J.]. Sept. 4, 1956 [Nov. 22, 1955], No. 26963/56. Class 106 (2). [Also in Group XXIX] In a pulsator for producing a periodically variable pressure in the cylinder of an endurance testing machine, a pulsator cylinder 1 is rotatable about the axis of the crankshaft which reciprocates a pulsator piston 7. By altering the ratio between the number of revolutions of the cylinder to the number of revolutions of the crankshaft the frequency of the pressure pulses is changed. This construction enables the pulsator to give pressure pulses of low frequency and still to maintain a smooth operation, without having to use flywheels of uneconomical dimensions. The stroke of the piston 7 is altered by changing the throw of the crank 10. In a modification a pulsator cylinder 20 is carried by a frame 19 connected to a flywheel 18 and its piston is connected by a rod 17 to a flywheel 16. The stroke may be altered by changing the position of the cylinder with respect to the frame 19. The cylinder 20 is connected to the testing machine by an articulated pipe 24.
Patent GB-241032-A (GB)
Title: Improvements in hasp-locks
IPC: E05B63/18
Filed: 1924-11-12
Abstract: 241,032. Parsons, R. J., and Julien, W. J. Nov. 12, 1924. Hasp locks in which the bolt is operated in both directions by the key, are provided with a plunger which engages the end of the bolt and prevents shooting it till the hasp is engaged. A plunger A pressed upwards by a spring D and sliding on a rod C, prevents the bolt B from being shot until the eyes of the hasp have been pressed into the holes a, b. The plunger may be actuated by gravity in locks which are mounted with the holes a, b at the lower part of the casing.
Patent GB-356481-A (GB)
Title: Improvements relating to railway light signals, relays and the like
IPC: B61L5/18
Filed: 1930-09-10
Abstract: 356,481. Signal lamps. CACHEMAILLE, A. S., 2, Norfolk Street, Strand, London.-(General Railway Signal Co.; Rochester, New York, U.S.A.) Sept. 10, 1930, No. 27073. [Class 75 (iv).] Lantern screens.- Coloured screens for railway signal lamps having a horizontal rocking shaft are provided with a counter - weight having a relatively movable centre of gravity so that when the shaft is rocked to an operated position the centre of gravity moves to a position in which the restoring couple is reduced and the operating force required to maintain the screen in the displaced position is therefore also reduced. On restoration to normal the counterweight with its temporarily displaced centre of gravity passes the position of equilibrium before the shaft arrives at its normal unoperated position and accordingly opposes the tendency of the shaft to overrun the normal position. Fig. 2 shows a screen 6 with different coloured glasses 7, 8, 9 which is rocked on its spindle 1 by a vane 10 moving between field magnets of an alternating current relay and which is provided with a counterweight, shown in Fig. 3, comprising a casing C with two chambers 12, 13 partly filled with mobile material such as a liquid (mercury) or granulated material (lead shot) which can pass from one chamber to the other through a small opening 14; an upper opening 15 prevents air lock. An anticlockwise displacement of the screen causes the material to pass into the chamber 13 which in the displaced position of the screen lies nearer the vertical equilibrium line D, Fig. 7, so that the restoring couple has an arm 24 smaller than the arm 25 if a simple counterweight were used. During the return of the screen to normal the displaced centre of gravity reaches the equilibrium line D when the shaft is still displaced at an angle a, Fig. 8, and so opposes the tendency of the shaft to overrun; at the position shown in Fig. 8 the displaced material begins to return to the chamber 12 and is quickly transferred. Specifications 275,077, [Class 38 (v), Electric switches &c.], 275,942, [Class 75 (iv), Lamps &c., Kinds &c. of], and 276,961, [Class 38 (v), Electric switches &c.], are referred to.
Patent GB-191186-A (GB)
Title: Improvements in and relating to displaying apparatus
IPC: A47F7/16
Filed: 1921-10-12
Abstract: 191,186. Ruddle, A. W., and Thomson, C. F. Oct. 12, 1921. Overhead travellers.-Carpets or other articles are stored and displayed by suspending them from tracks which may have curves and switches whereby any selected carpet may be moved into a required position. On each track a run one or more carriages comprising a cross-bar c suspended from rollers. The cross-bar carries pulleys e over which pass cords d which support a beam f to which the carpet &c. h is attached by devices g. The cords d pass through a locking device i, Fig. 3, fitted with a releasing handle j, whereby the carpet &c. can be raised or lowered to any position and secured.
Patent GB-769457-A (GB)
Title: Automatic voltage control of electrostatic precipitator with saturable reactor
IPC: G05F1/34
Filed: 1954-09-20
Abstract: 769,457. Automatic control systems for electrostatic precipitators. RESEARCH CORPORATION. Sept. 20, 1954.[Dec. 17, 1953], No. 27145/54. Class 38 (4). The rate of inter-electrode sparking in an electrostatic precipitator is determined as in Specification 740,394, and maintained at a desired value by automatic control of a saturable reactor in series with the primary of the H.T. transformer. The reactor 4<SP>1</SP> is in series with the H.T. transformer 5<SP>1</SP> supplying the precipitator 7 over rectifier 6<SP>1</SP>. The main control winding 42 is energized from an auxiliary rectifier 48 via a potentiometer 50 operated by a reversible servomotor 58 controlled by magnetic amplifiers 1, 2, controlled by the spark rate detector 68 and an opposing reference voltage 70. The main reactor 4<SP>1</SP> also has a feedback winding 44 carrying the H.T. rectifier current to improve stability. Excess steady precipitator current causes an overcurrent relay 76a to open the circuit of the reference source 70 so that motor 58 reduces the supply voltage. In a modification, Fig. 2 (not shown), the detector controls the main reactor through a D.C. amplifier.
Patent GB-297738-A (GB)
Title: Improvements relating to drive chains
IPC: F16G13/04
Filed: 1928-09-21
Abstract: 297,738. Morse Chain Co., (Assignees of Morse, F. L.). Sept. 26, 1927, [Convention date]. Driving-chains with separate joint pins.- Joints are so constructed that when the chain is bent the effective centre of articulation moves in the direction of bending, and may be such as to lengthen the pitch of the chain also during bending. In the construction shown, members 2, 3 secured in adjacent links have concave bearing surfaces engaging with the convex surfaces of a floating pintle 4. The members 2, 3 may be arranged either at right-angles to the axis of the chain or inclined towards each other when the chain is straight. The relative configurations of the bearing surfaces may be such as to leave an oil space between the members. A rocking contact may be provided between the pintle and one of the side members.
Patent GB-676856-A (GB)
Title: Improvements in or relating to a stacking machine
IPC: A01D87/08
Filed: 1950-11-07
Abstract: 676,856. Load handling machines ; discharging tines. HORN MANUFACTURING CO. Nov. 7, 1950. No. 27178/50. Classes 78 (iii) and 78 (iv). A stacking attachment for a tractor has a push plate 24 for discharging the tines 22 which is extended from the position shown in full line to that shown in dotted line by a hydraulically actuated link mechanism which provides maximum leverage on the plate to initiate its push-off stroke, a rapid movement at the start of the stroke, and a progressive reduction of speed during the stroke. The plate 24 is secured to a pair of spaced "Y" frames 63 pivoted to arms 61 which are attached to an eccentrically pivoted rock shaft 53 together with a bell-crank-lever 73, 76 which is pivoted at 77 to a hydraulic jack 79 and at 71 to a sleeve 69. The jack is also pivoted to this sleeve at 82 and, on extension of the jack, the sleeve slides down a pivoted guide 66 to the position shown in dotted line. A progressive variation in the speed of rotation of the rock shaft 53 is effected by the jack operating on the long arm 73 only at the start of the push off stroke, and by subsequent operation on first both arms and' finally the short arm 76 only. The plate 24 is guided by a pair of V-. shaped straps 28 secured thereto and which engage a pair of tines 22. The complete assembly is secured to a pair of arms 10 which are luffed by a pair of hydraulic jacks (not shown) which are secured to the tractor and operate on the arms through a rope and pulley. Adjustable straps 38 enable the angular position of tines 22 to be altered.
Patent GB-444261-A (GB)
Title: Improvements in and relating to tone correction circuits
IPC: H03G5/04
Filed: 1934-09-24
Abstract: 444,261. Impedance networks. PYE RADIO, Ltd., Radio Works, and CARTER, C. J., 22, Hartington Grove, both in Cambridge. Sept. 24, 1934, No. 27358. [Class 40 (iii)] A variable tone-control network comprises a series condenser Cl and shunt inductance T2 coupled to a network containing a condenser C2, a highresistance potentiometer R1, and a low resistance R2, so dimensioned that high or low frequencies are relatively attenuated according to the position of the wiper 14. The series condenser tunes with the effective shunt inductance to form an acceptor circuit at the lower limit of frequency, and the impedance of condenser C2 is much less than the resistance R1 at high frequencies, while the impedance of condenser C1 is much greater than the resistance R2 at lower frequencies. When the wiper 14 is at the upper end a of the high resistance R1, the effect of the coupled circuit is mainly capacitive and high audio-frequencies are attenuated, the shunt circuit being resonant at 4,800 c. /sec. When the wiper 14 is at the lower end b the effect of the coupled circuit is mainly resistive and low frequencies are relatively attenuated by the series condenser C1. When the slider 14 is in the midway position, high and low frequencies are not relatively attenuated. In a modification, a simple inductance may be substituted for the transformer.
Patent GB-424820-A (GB)
Title: Improvements in or relating to cycle hubs
IPC: B62J6/12
Filed: 1934-09-24
Abstract: 424,820. Driving dynamos. LUSTENBERGER, J., 2, Eichmattstrasse, Lucerne, Switzerland. Sept. 24, 1934, No. 27416. [Class 35] [See also Group XXXI] A cycle dynamo and brake are enclosed within a common hub, the dynamo driving-gear and the brake being contained in an enlarged portion of the hub. The armature 17 of the dynamo is driven through gearing 14, 11, 12 from an internally-toothed ring 10 fixed to an enlarged portion 7<a> of the hub 7. The gear wheel 14 is adapted to be disengaged from the gear wheel 11 by means of a sliding rod 16. Two brake shoes are also mounted in the enlarged part or drum 7<a>, and are actuated by means of a cam 24, shaft 25, and lever 27. The end plate 5 is removable for obtaining access to the gearing, brake, and dynamo. A conductor 20 is led from the dynamo through a bore in the axle 1 to a lamp.