baber/WOPTO huggingface dataset:
Patent GB-465110-A (GB)
Title: Improvements in continuously variable change-speed gears
IPC: F16H29/18
Filed: 1935-10-25
Abstract: 465,110. Variable - speed gearing. GOURMAIN, E. Oct. 25, 1935, No. 29485. Convention date, April 25. [Classes 80 (ii) and 80 (iii)] Continuously-variable change-speed gearing comprises a main planetary train T, Fig. 4, controlled through eccentric-disc variable ratchet gearing M, M<1>. The train T has stepped planets el, e<2> in a carrier E<1> fast on a driving- shaft A<1>. The planets e<2> mesh with a sun E<2> fast on a driven shaft A<2>. The planets el mesh with a controlled sun E<3> which is driven from the shaft A<1> through a toothed reducing train U of fixed ratio and through the ratchet gearing M, M<1>. The gearing M, M<1> comprises two speedincreasing ratchet trains. A driving-disc P<1> has an annular groove O<1>, Fig. 8, in which reside friction one-way grips L each with a pin l projecting into a radial groove 02, Fig. 7, in a driven disc P<2>. Rigid with the driven disc P<2> of the train M is the driving-disc P<1>1 of the train M<1> which has radial grooves staggered in relation to the radial grooves of the disc P<2> as shown in Fig. 7. Pins l<1> engaging these radial grooves are carried by grips L<1> in an annular groove 012 in the driven disc P<1>2 of the train M<1> which is rigid with the sun E<3>. The middle discs P<2>, P<1>1 can be moved to eccentric positions by a rod D to vary the over-all speed ratio. When these middle discs are concentric, the driven sun E<2> is at rest since the similar sun E<1>2 of the train U is fixed. On moving the middle discs out of the centre, the speed of the shaft A<2> rises continuously since the trains M, M<1> both overdrive. Each grip L, Fig. 8, carries a spring-urged wedge W to effect the one-way grip without undue loss of motion. In the arrangement shown in Fig. 4, the train U is planetary and similar to the train T with a carrier fast on the shaft A<1>. In an arrangement described with reference to Fig. 3 (not shown), the reducing train U is non-planetary.
Patent GB-712163-A (GB)
Title: Improvements in or relating to medical appliances
IPC: A61F5/41
Filed: 1952-11-21
Abstract: A penile constrictor for use in case of psychological impotence comprises a substantially rigid member of wide V-shape having its ends joined by a length of rubber or similar tubing.  The apex of the V is curved outwardly to avoid the uretheal duct.
Patent GB-870603-A (GB)
Title: Improvements in or relating to labelling machines
Inventor: FAIREST DEREK HOWARD
IPC: B65C9/08
Filed: 1959-08-29
Abstract: 870,603. Labelling machines. FAIRWAY PATENTS Ltd. Aug. 29, 1959, No. 29543/59. Class 73. A labelling machine comprises means for detaching unmoistened gummed labels from a supply and feeding them to a labelling station with their gummed side towards an article to be labelled, moistening them and pressing them to the articles which are fed in succession to the station. The gum on the labels is moistened whilst they are being moved on suction holes on an intermittently rotating hexagonal drum 6 of the kind described in Specification 870,594 in this Group by. steam from a flash boiler 11 described in Group IX with reference to the same Specification. In addition, adhesive may be applied to edges of the gummed side of the label to hold it in position on the article whilst the gum is softening. The Specification describes applications of this sequence of operations in machines similar to those described in Specification 835,777 including types specially suitable for bottles of rectangular section. Specification 833,685 also is referred to.
Patent GB-1510846-A (GB)
Title: Axial flow pump
IPC: F04D29/54
Filed: 1975-07-15
Abstract: 1510846 Axial-flow pumps ITT INDUSTRIES Inc 15 July 1975 [23 July 1974] 29602/75 Heading F1C An axial-flow pump for liquid, e.g. sewage, containing solids and long fibres, comprises diffuser vanes 8 extending inwardly from the pump casing downsteam of the impeller 2 and having sweptback leading edges which are at not more than 70 degrees and preferably 40-50 degrees with respect to the pump axis, a central space 9 having a diameter at least 10% of the casing internal diameter being formed within the inner tips of the vanes, and the impeller hub having a smooth prolongation 6 of hemispherical or frusto-conical form. The closest approach of the prolongation 6 to the leading edges of the vanes 8 is at least about 10% of the casing internal diameter. The hub diameter and the blade tip clearance of the impeller 2 are about 50% and 6%-10% respectively of the casing internal diameter. An elongate bearing 5 shields the driving shaft to prevent elongated objects, e.g. rope and string, from becoming wrapped around it.
Patent GB-300779-A (GB)
Title: New or improved extra air control device for use with internal combustion engines
IPC: F02D9/00
Filed: 1927-11-05
Abstract: 300,779. Goodyear, E. J. Nov. 5, 1927. Induction p i p e s , extra air valves for; air silencers.-An extra air valve comprises a body 1 having a cavity 5 therein which communicates with the induction pipe through a conduit connected to an outlet 9, and a hollow adjustable plug 10 adapted to coact with the bottom of the cavity, the cap 12 of the plug being provided with means 19 for silencing the air current. The cap 12 is provided with air inlet apertures 20 communicating with a space 17 containing wadding, cotton waste, felt or the like 19 held between gauze discs 18, the air then passing through a passage 13 and outlets 16 in the plug to the cavity 5. The bottom of the cavity may be provided with a resilient washer 6.
Patent GB-728006-A (GB)
Title: Method of repairing the ends of conveyor and like belts
IPC: F16G3/04
Filed: 1952-11-24
Abstract: 728,006. Belt fasteners. HAYDEN-NILOS, Ltd., and POTTER, J. J. Nov. 23, 1953 [Nov. 24, 1952], No. 29651/52. Class 80 (1). The fastened ends of belts are repaired by cutting off the damaged portion, removing the upper and lower layer of rubber or like covering material for a short distance to leave a tongue 12 as in Fig. 2 of reduced thickness, the side edges also being chamfered as at 13. A thin wrapping 15 of rubber or like material, Fig. 3, is then fixed by an adhesive to the tongue 12 and the fastener hooks 16 inserted. Upper and lower covering layers of rubber or like material 17, Fig. 4, are then affixed over the hooks and the whole vulcanized. The covering sheets 17 may project beyond the belt end to overlie the hooks.
Patent GB-285182-A (GB)
Title: Improvements in or relating to electrical distributing and controlling systems
IPC: H02J13/00
Filed: 1926-11-23
Abstract: 285,182. Perry, J. F., and Metropolitan-Vickers Electrical Co., Ltd. Nov. 23, 1926. Protective arrangements.-A control apparatus or gate-end switch 100 is connected by semi-permanent cables through a series of distribution boxes 11, 11<a> to a motor 37 on which is located the pilot control switch handle 41. The motor 37 may be a tub loading motor and additional motors 30, such as conveyer driving motors, are connected by trailing cables to plugs 31 inserted in the boxes 11, 11<a>. All the motors are controlled from the switch 41, and the pilot circuit is completed by pins 32 on the plugs 31 or by corresponding pins on dummy plugs which are used if any motor 30 is disconnected. Coils 26, 27 in the circuit of each motor 30 and located in the corresponding box 11 or 11<a>, operate an overload relay in the pilot circuit. The arrangement is applicable to the systems described in Specifications 261,507, 262.553 and 285,588.
Patent GB-890238-A (GB)
Title: Means for automatically controlling a vehicle variable-speed power transmission mechanism
Inventor: PHOENIX LANCELOT
IPC: F16H63/02
Filed: 1959-09-01
Abstract: 890,238. Change-speed control. LUCAS (INDUSTRIES) Ltd., JOSEPH. Aug. 23, 1960 [Sept. 1, 1959], No. 29746/59. Addition to 841,706. Class 80 (2). [Also in Group XL (c)] The electrical control for an overdrive or other change-speed gear in a motor car of the parent Specification, acting in dependence of engine speed by electrical impulses derived from the primary coil 1 of the usual ignition circuit having a contact-breaker 3 and a spark-reducing condenser 4, the impulses being applied through a smoothing inductance 8 to two clipping diodes 6, 7, is modified by the use of a two-stage transistor amplifier circuit 14, 19 controlling a solenoid 20, actuating a switch 20a effecting ratio shifts. Impulses from the clipping diodes 6, 7 are applied through a capacitor 9 to a pumping diode circuit 10, 11 connected through a resistor 15 to the base of the transistor 14. A potentiometer 18 connected across the negative and positive terminals 2, 5 of an accumulator energizing circuit supplies a bias in opposition to the impulses fed from the pumping diodes 10, 11. On starting the car from rest, the base of the transistor 14 is so biased that the transistor supplies current through a resistor 16 and thereby biases the base of the transistor 19 to prevent transmission of current therethrough. With increase in engine speed, the bias of the base of the transistor 14 changes, so that ultimately this transistor ceases to conduct. The bias of the base of the transistor 19 is then so changed that it transmits current, thereby energizing a solenoid 20 to close the switch 20a and effect a ratio upshift. Switching-on the transistor 19 increases the potential drop across a resistor 13 connected between the accumulator terminal 5 and the emitter of the transistor, thereby ensuring that the transistor 14 remains in a non-conducting condition. The solenoid 20 also controls switches 20b, 20c in circuits between the accumulator terminal 5 and the potentiometer 18, a switch 23 being opened by the car accelerator pedal to change the bias produced by the potentiometer 18 and prevent establishment of overdrive until a suitably high speed has been achieved, while a further accelerator pedal controlled switch 22 assists the switch 20c to prevent " hunting." A switch 20d closed on energization of the solenoid 20 is included in a circuit having a switch 24 closed when the car throttle is released, so that the base of the transistor 14 is then maintained at the potential of the positive battery terminal 5 however low the engine speed. To control change-speed gearing giving more than two ratios, two or more diode pumps and pairs of transistors may be provided for controlling a corresponding number of solenoids 20 &c.
Patent GB-988251-A (GB)
Title: Improvements in grain driers
Inventor: JARVIS JOHN STEVENS
IPC: F26B17/12
Filed: 1961-08-17
Abstract: 988,251. Drying grain. RANSOMES SIMS & JEFFERIES Ltd. Oct. 23, 1962 [Aug. 17, 1961], No. 29762/61. Heading F4G. A grain drier comprises a column having side walls 10, 11, Fig. 1, between which extend two spaced shoots 12, 13 formed of inclined, perforated gratings 14 for the zig-zag passage of the grain from an upper trough 20 to a lower trough 22 and discharge elevator 23. The upper portion of the column has thereabout a spaced hood comprising a top cover 43 and front and rear covers 38 of canvas or the like, which covers extend alongside upper parts of the front and rear of the column on a framework formed from side panels 32 of sheet metal and bars 35 secured thereto, so as to form passages between the covers 38 and the column. Above the side wall 10 the hood opens into a duct 44 for connection to an extractor fan 46. A plenum chamber 30 opens through the wall 10 to fed heated air from a chamber 28 and fan 29 to an intermediate drying section 31 of the column and cool atmospheric air is drawn by a fan 24 through the grain at the lower end of the column and recirculated through a duct 26 to a preheating section 27. The dust and moisture-laden air from sections 31 and 27, escapes through gratings 14 to the passages between the covers 38 and the column for discharge.
Patent GB-750141-A (GB)
Title: A mechanism for converting a rotation through an angle -h-to a rotation through an angle proportional to log cos -h-
Inventor: HALL LESLIE EDWIN
IPC: H01P1/00
Filed: 1952-11-25
Abstract: 750,141. Waveguide accessories. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 25, 1953 [Nov. 25, 1952], No. 29800/52. Class 40 (8). A mechanism for linearizing the scale of the waveguide attenuator described in Specification 692,591 in which the attenuation produced by rotating a section of the guide through an angle of # is proportional to log cos 6 comprises means for converting an initial angular movement 6 into a linear movement substantially proportional to tan # and means for deriving from the initial angular movement and from the linear movement, a resulting angular movement proportional to log cos #. The mechanism comprises in principle a member 3, Fig. 1, slidable on a fixed pillar 3<SP>1</SP> and connected by a pin-and. slot connection to a plate 2 fixed to an input shaft 1, this arrangement being such that as the input shaft rotates through an angle # the member 3 slides through a distance proportional to tan #, and a ball 6, Figs. 2, 3, in frictional contact with both a shaft 8 and a disc 7, this latter arrangement being such that as, simultaneously, the ball is moved from its initial position at the centre 9 of the disc through a distance proportional to tan #, and the disc is rotated about its centre through an angle #, the rotation of the shaft 8 is proportional to ##<SP>#</SP> o  tant dt, i.e. to log cos #. In the actual mechanism, Figs. 4, 5, the input shaft 10 moves a carrier 15 on a pillar 15<SP>1</SP> via a pin 14 and a slotted member 13 attached to a shaft 12 rotating with the input shaft, and rotates a fragmentary disc 16 which replaces the disc 7 of Figs. 2-3, the final drive from the fragmentary disc 16 to the output shaft 11 being via balls 18 guided by a cage 19 attached to the carrier 15.
Patent GB-843174-A (GB)
Title: Hose examining and turning apparatus
Inventor: MOORLEY GEORGE WILLIAM FRANCIS
IPC: D06H3/16
Filed: 1955-10-20
Abstract: 843,174. Photo-electric control systems. PECK Ltd., H.T.H. Oct. 16, 1956 [Oct. 20, 1955], No. 29939/55. Class 40(3). [Also in Groups VII and XIX]  A stocking after undergoing examination on an inspection form comprising a central rotatable tube 4 provided with expansible vanes 5, 6, 7, 8 respectively expanded and contracted by depression and release of a pedal 9, is turned inside out and conveyed toe foremost through tube 4 by a jet of air from a nozzle 11 aligned with the outer end of tube 4. Depression of a pedal 12, if Inspection reveals a 1st Grade stocking, serves to start the jet and to direct the stocking into a compartment 1 GS via a pivoted tube 13. A counter Cl also operates. For a 2nd Grade stocking a button 2GC is pressed to convey the stocking into a compartment 2GS and to operate a counter C2. A button 3GC is pressed to convey a 3rd Grade stocking into a compartment 3GS and to operate a counter C3. The stocking on its passage along tube 4 obstructs the light directed by a lamp 16 on to a photo-electric cell 17. A time device, thereby set into operation, is so arranged that after the lapse of two-fifths of a second two solenoids are simultaneously energized, one for operating a counter and the other for closing a pair of jaws 18, 19 adapted to grip the toe of the stocking as the latter passes therebetween. After the lapse of a further two-fifths of a second the jawoperating solenoid is de-energized to release the toe, and a solenoid controlling the air jetoperating valve is de-energized after the lapse of a further two-fifths of a second, whereby the stocking is conveyed welt foremost into the selected compartment by the dying current of air. Specification 815,750 is referred to.
Patent GB-1356986-A (GB)
Title: Apparatus for the displacement of an object between two points of a predetermined path
IPC: G05B19/23
Filed: 1971-06-25
Abstract: 1356986 Automatic electric control SOC HONEYWELL BULL 25 June 1971 [26 June 1970] 30035/71 Heading G3N [Also in Division G4] In displacement-control apparatus, a digital register and D/A converter provide a positionerror signal from which a function generator provides a reference speed signal according to a linear or piecewise-linear function, the polarity of the supply to a D.C. motor being controlled in accordance with the polarity of the difference between this reference and the actual speed of the object displaced. A digital substracting register'R obtains the difference between the desired displacement entered at 1 and the actual displacement sensed at Me. The displacement error is fed through a D-to-A converter C to a function generator G (using resistors) to obtain a required-velocity signal, this signal or its inverse being passed by L 0  (according to the required direction of movement) and compared at C 0  with the actual velocity from a tachometer T. The velocity error signal, via an amplifier A, controls switches 11, 14 or 12, 13 to a variable extent to energize the motor M. The velocity-distance relation embodied in the function generator may be linear or piecewise-linear (approximating to a no-load parabola during the deceleration portion), with a low constant velocity (flat) final portion. Alternatively, the latter portion may be produced by the register R stopping at a corresponding residual value. Motor M may position read-write heads to a desired track of a magnetic disc. Constant velocity positioning can be achieved by opening the position feedback loop at a switch J and supplying a constant input to 1.
Patent GB-216090-A (GB)
Title: Improvements relating to the proofing and preservation of textile materials
IPC: D06M16/00
Filed: 1923-11-29
Abstract: Salts of radio-active metals may be added to baths for proofing fabrics, yarns, &c. against mildew, the baths containing also salts of cerium, lanthanum, and didymium, with or without compounds of other rare earth metals, zirconium, titanium, thorium, and aluminium. The material is impregnated with a solution of soluble salts of the metals, dried, acted on by a precipitant to cause the formation of insoluble salts, preferably in the colloidal state, calendered, washed, and finally pressed and calendered.  The precipitant is preferably ammonia gas, a salt of ammonium, or an alkali.ALSO:Salts of cerium, lanthanum, and didymium, with or without p  compounds of other rare earth metals, zirconium, titanium, thorium, and aluminium are used to proof fabrics, yarns, &c. susceptible to mildew or the like against moisture, mildew, &c. The material is impregnated with a solution of soluble salts of the metals, dried, acted on by a precipitant to cause the formation of insoluble salts preferably in the colloidal state, calendered, washed, and finally pressed and calendered.  The precipitant is preferably ammonia gas, a salt of ammonium, or an alkali.  Salts of other metals, such as iron, chromium, nickel, &c. may be added to the impregnating bath for colouring purposes. The cerium, lanthanum and didymium are preferably as derived in association from thorium extraction residues.  The Specification as open to inspection under Sect. 91 (3) a() comprises also the application of any rare earth metal compound to all textile materials.  This subject-matter does not appear in the Specification as accepted.
Patent GB-324321-A (GB)
Title: Improvements in or relating to fuel sprayers or injectors for internal combustion engines using heavy liquid fuels
IPC: F02M31/02
Filed: 1928-10-18
Abstract: 324,321. Gidino, G., and Cole, S. Oct. 18, 1928. Vaporizers, external.-A vaporizing chamber e of ovoid or like shape to cause the mixture to assume different velocities during its flow therethrough, is supplied with heated heavy oil from a float-chamber c through a. pipe a<2>, and with heated air through a pipe d. The oil and air pipes pass through the exhaust manifold and the portion of the oil pipe within such manifold is preferably of a capacity corresponding substantially to the quantity of oil drawn into the engine cylinders during one complete cycle. The air inlet tube d is provided with cold air ports d' controlled by a quadrant plate d<3>. The heated air is controlled by a valve f connected through adjustable linkage k - - k<4> to a needle valve h in a fuel inlet passage h<1>. A passage g with control means g<1> may bye-pass heated air around the valve j. The fuel is delivered through perforations a<3> near the closed end of pipe a<2>, and is caused by a partition e<2> to form an oil-bath on to which the hot air is directed by a baffle m. The resulting mixture, during its flow to the engine, is subjected to the action of other baffles m<1>, m<2>. The outlet from the chamber e is provided with two flanged pipes, one of which leads to the engine and the other of which is connected to a petrol carburettor for starting. A temperature-indicating device may be provided. According to the Provisional Specification, the fuel and air may be supplied to the injector or sprayer by means of a cylindrical valve mounted on the inlet portion of the sprayer body. The fuel pipe may penetrate within the valve and deliver the fuel through one or more jets, and the air tube may deliver the heated air through perforations or slots in the valve body.
Patent GB-1026633-A (GB)
Title: Thermally stable polybenzoxazoles
IPC: C08G73/22
Filed: 1963-07-30
Abstract: Polybenzoxazole polymers containing recurring structural units of formula <FORM:1026633/C3/1> or of formula <FORM:1026633/C3/2> wherein Ar is a divalent aromatic hydrocarbon radical and (1) is a divalent aromatic hydrocarbon radical or a carbon-to-carbon bond. Polymers containing the first units above are prepared by condensation of aminohydroxybenzoic acids of formula <FORM:1026633/C3/3> and those containing the second units above are prepared by reacting an aromatic dicarboxylic acid of formula HOOC-Ar-COOH or an ester thereof, with a bis-(o-amino-phenol) of formula <FORM:1026633/C3/4> In examples poly-(2,5-benzoxazole) and poly-(2,6-benzoxazole are prepared by reacting 3-amino-4-hydroxybenzoic acid and 4-amino-3-hydroxybenzoic acid with thionyl chloride, isophthalate polybenzoxazole and terephthalate polybenzoxazole are prepared by reacting 3,31-dihydroxybenzidine with diphenyl isophthalate and with diphenyl terephthalate, and 5-chloroisophthalate polybenzoxazole is prepared by reacting 3,31-dihydroxybenzidine with diphenyl 4-chloroisophthalate.
Patent GB-357801-A (GB)
Title: Improvements in or relating to the final cooling of gases from coal distillation ovens and the like
IPC: C10K1/00
Filed: 1930-10-09
Abstract: 357,801. Gas-washing processes. KOPPERS COKE OVEN CO., Ltd., 301, Glossop Road, Sheffield.- (Heinrich Koppers Akt.-Ges. ; 29, Moltkestrasse, Essen, Germany.) Oct. 9, 1930, No. 30280. [Class 55 (ii).] The process described in Specification 336,484, [Class 55 (ii), Gas manufacture &c.], of finally cooling coal gas &c. by circulating cooling water, in which the water before being re-cooled is washed with tar to remove naphthalene from the water, is modified by the substitution for tar of any oil insoluble in water and capable of dissolving naphthalene. An oil having at the temperatures employed, usually 20-60‹ C., a specific gravity rendering it easily separable from the water is preferably selected. Tar oils, petroleum, and paraffin oil are examples.