baber/WOPTO huggingface dataset:
Patent GB-113614-A (GB)
Title: Improvements in or relating to Spring Forks for Cycles and Motor Cycles.
Inventor: AUGUST FELIX MARIE HUBERT VAN
IPC: B62K25/24
Filed: 1918-02-19
Abstract: 113,614. Mee, A. F. M. H. Van der. Feb. 19, 1917, [Convention date]. Void [Published under Sect. 91 of the Act]. Spring devices.-Link-mounted spring forks for motor and other cycles have the parts so proportioned that the wheel axle moves in a straight line. As shown, the lengths of the links 2, 4 are in the ratio of 23 to 36, and the lengths of the fork part 3, distance 5, and bar 8 have the proportions 52, 48, and 87. The fork may be controlled by a helical spring disposed, for instance, between the points 24, 19; or a leaf spring 12, pivotally connected at 14 to the fork and linked as at 18, 17 at the front and rear ends to the fork and links 4 respectively, may be employed. Helical springs may be used in place of the links, and the leaf spring may be covered with leather 21 and enclosed in a casing 22, which may carry the number plate and trade mark. The links 4 have several perforations 20 so that the point of attachment of the link 17 may be varied according to the weight upon the machine. For a motor-cycle, the angle and position of the head should be such that the continuation of the centre line of the head meets the vertical line through the wheel axle at the point of contact of the wheel with the ground
Patent GB-1338226-A (GB)
Title: Lung ventilators
IPC: A61M16/00
Filed: 1970-01-21
Abstract: 1338226 Lung ventilators BRITISH OXYGEN CO Ltd 19 Jan 1971 [21 Jan 1970] 2938/70 Heading A5T A lung ventilator comprises a monitoring device which produces electrical signals corresponding to the integrated volume flow of gas to the patient during each inspiratory phase of his breathing, so that when the signals correspond to a desired integral volume flow, the monitoring device is stopped and the succeeding expiratory phase of the cycle started. A gas mixture is passed through a mixer 2 a pattern generator 4 and flow rate device 6. During the inspiratory phase a valve 8 is opened by a controller 10 allowing the gas to pass through a column sensor 12 which sends a signal to an integrator 14 which measures the integral volume of gas passing through the sensor and in turn sends a signal to a comparator 36 which compares this signal with a signal corresponding to a preset volume from a signal generator 38. When the two volumes equalise, a signal is sent to the controller 10 to cut off the inspiratory supply of gas by closing valve 8 and a simultaneous signal is sent to an auxiliary valve 34 which opens a valve 28 which allows the expiratory phase of the cycle to commence. When the patient exhales a build up of pressure in line 30 activates switch 39 which in turn actuates expiratory time switch- 40, and on completion of the expiratory time switch 40, and on completion of the expiratory time period, comparator 36 resets controller 10 to commence another inspiratory phase. A volume sensor 26 in the expiratory stream passes signals to an integrator 27, whose outlet signals are passed into a leak resistor when they reach equilibrium with the constant leaking signal, the balance position being indicated on a meter 42. Excessive deviation from this position, indicating a low breathing rate, or an excessive ventilation rate activates an alarm 44. Should the monitoring device fail a manual rebreathing bay 24 is used to ventilate the patient.
Patent GB-968906-A (GB)
Title: Reconstituted tobacco products and a method for their manufacture
IPC: A24B15/12
Filed: 1962-01-26
Abstract: Reconstituted tobacco sheets are prepared by subjecting the tobacco to a hydrolizing treatment in an aqueous medium at a solids concentration of 10% to 40% with a hydrochloric acid concentration of 0.1 to 1.0% for 1/2 to 2 hours at a temperature of 93 DEG C. to 150 DEG C., neutralizing the aqueous tobacco-containing medium, e.g. with a dilute alkali such as sodium hydroxide, mechanically attriting the treated tobacco, forming a sheet from a slurry of the attrited tobacco, and drying the sheet.  The tobacco sheet preferably contains 5-20% of a polysaccharide and from 2-20% of a humectant.
Patent GB-369326-A (GB)
Title: Improvements in mechanically-geared internal combustion engines
IPC: F02B75/22
Filed: 1931-01-30
Abstract: 369,326. Driving-gear. ROGER, A., Fairfield Cottage, Great Budworth, near Northwich, Cheshire. Jan. 30, 1931, No. 2984. [Class 7 (ii).] In a radial-cylinder engine having strokes of unequal length for the different parts of the cycle, an eccentric sheave 4 is mounted on pinions 3 on a crank pin 2, and is surrounded by a strap 5 to which the pistons are connected. The pinions 3 mesh with a fixed internallytoothed wheel 9.
Patent GB-320832-A (GB)
Title: Improvements in and relating to feeding devices for the carbons of arc lamps
IPC: H05B31/00
Filed: 1929-01-29
Abstract: 320,832. Anciens Etablissements Barbier, Benard, et Turenne, Soc. Anon. Nov. 9, 1928, [Convention date]. Arc lamps.-An arc-lamp carbon 2 is held between rollers 10 by means of which it is continuously rotated and intermittently fed forward under the control of a cam device. The rollers 11 are carried on a toothed wheel 9 driven from the motor 3 and are connected to toothed wheels 12 gearing with a wheel 13 which normally rotates freely about the carbon 2. To hold the wheel 13 and thus cause the carbon to be fed forward a ratchet 14 is. provided with which engages a pawl 15 operated by means of a cam 21 on a shaft 6 through the levers 27, 28. The cam 21 is formed of tapered portions as shown so that by sliding it lengthwise on the shaft 6 the time during. which the carbon is fed forward can be regulated. This is effected by a fork 27a engaging with the cam 21 and carried on a rod 30 which is slid lengthways by means of a knob 34 and a helical cam 36. The other carbon 1 is fed forward steadily through the gearing shown,
Patent GB-1247281-A (GB)
Title: Machine for working rubber and like plastics
Inventor: WEIR JAMES DOUGLAS
IPC: B29C48/62
Filed: 1969-01-20
Abstract: 1,247,281. Working plastics. INTERNATIONAL RUBBER INDUSTRIES Inc. 20 Jan., 1969, No. 3096/69. Heading B5A. [Also in Division B1] A machine for working plastics in a continuous operation comprises a cylinder with a uniform diameter bore and a screw having a feeding section, a masticating section and a delivery section, rotatably mounted in said bore; wherein the screw has, in the masticating section at least one thread whose pitch both increases and decreases. A pair of grooves of varying depth are provided at the root of the screw-thread, one on each side, and the depth of one groove increases as the depth of the other decreases to move the plastics material laterally across the groove between adjacent threads. The extruder may also comprise two screw-threads, both of variable pitch or one of fixed and the other of variable pitch. Preferably the screw pitch varies sinusoidally and the depth of the grooves both increases and decreases in the masticating section. As shown, the machine comprises screw 10, a cylinder 12, inlet hopper 14, feeding section 16, mixing section 20 and delivery section 22 feeding an extruder. The screw has a constant pitch thread 18 which extends from the feed section, through the masticating section into the delivery section. A second thread 24 of varying pitch runs the length of the masticating section, the pitch of this thread varying sinusoidally. Grooves are formed at the root of the threads in the channels C<SP>11</SP>, C<SP>1</SP> and vary in depth to force material from one side of the channel to the other as the screw rotates.
Patent GB-1025302-A (GB)
Title: Improvements in or relating to vacuum deposition
Inventor: SUMMERS LEO EWART ARTHUR
IPC: C23C14/26
Filed: 1964-01-24
Abstract: <PICT:1025302/C6-C7/1> A dielectric 4 e.g. SiO in an inclined thin walled Mo tube 1 having sealed flattened ends AB, CD clamped to electrodes 5,6 in a vacuum chamber is vaporized at above 1250 DEG C. by passing an electric current through the tube.  Vapour passes through a quartz wool plug 3, which filters out particles of SiO, and is discharged through an oridice 3, which may be heated, on to a masked substrate to form a 2500 <\>pA thick coating.
Patent GB-921261-A (GB)
Title: Apparatus for slitting hollow containers having fins on their external periphery
Inventor: ROBERTS MALDWYN HUGH
IPC: G21C19/36
Filed: 1960-01-29
Abstract: 921,261. Removing canning from nuclear fuel. JOSEPH LUCAS (INDUSTRIES) Ltd. Jan. 20, 1961 [Jan. 29, 1960], No. 3225/60. Class 39 (4). [Also in Group XXXVIII] In a system in which a slitting wheel is required to maintain the same radial position in relation to the surface of a nuclear fuel container having fins on its external surface, while relative longitudinal motion is imparted to the tool and container, a feeler in advance of the tool generates a signal indicative of the contour of the container which signal is stored and subsequently controls the radial position of the tool, and a second feeler separated from the first by a distance slightly greater than the width of a fin controls a locking device to prevent the radial position of the tool being altered while the first feeler is on a fin. The slitting wheel and the two feelers (not shown) are mounted on a carrier 11 advanced by a continuously driven screw 12. The main feeler engages the container (not shown) and controls a potentiometer 14, the output of which is fed to a memory unit 19 through a uni-selector 20 having two insulated arms through one of which a signal is fed into the memory and through the other of which it is reproduced after a time interval (typically five minutes) determined by the spacing of the arms and the rate at which they are driven. Movement of the arms is effected by pulses from a unit 21 actuated by a cam on screw 12. The time interval represents the time taken for the slitting wheel to cover a distance equal to that between the wheel and the feeler. The output from memory unit 19 is compared at 28 with a signal from potentiometer 27 indicative of the radial position of the slitting wheel. The output of unit 28 operates on a conventional servo system 24, 25, 29 to drive a feed screw 22 moving the slitting wheel towards or away from the container. When a pulse is produced by unit 21 to drive the uni-selector it also unlocks a locking device 26 which otherwise prevents motor 24 from actuating screw 22. Eliminating the effect of the fins. A second feeler on carrier 11 controls a second potentiometer 15 and the difference between the outputs from potentiometers 14 and 15 is stored in a second memory unit 30, operable by a further pair of arms of uni-selector 20. The arrangement is such that a signal is passed to the memory only when the main feeler is further from the axis of the container than the second feeler. The output from memory 30 controls locking device 26 and prevents it from unlocking if this output is above a predetermined value, indicating that the main feeler is on a cooling fin. A cooling system for the container is preferably provided, together with a logical circuit preventing operation when no coolant is present, or when the slitting wheel is not rotating.
Patent GB-448949-A (GB)
Title: A device for sharpening the blades of lawn mowers
IPC: B24B3/42
Filed: 1935-02-01
Abstract: 448,949. Sharpening lawn mowers. MACDONELL, J., 73, Old Edinburgh Road, Inverness. Feb. 1, 1935, No. 3278. [Class 60] A sharpener for the rotary cutter of a lawnmower comprises a plate 1 having rabetted edges 2 which receive flat bars 3 carrying studs 4. The bars serve to clamp a sheet of emery cloth &c. 11 to the plate 1 and the studs 4 pass through holes in the plate and in bars 5, being secured in place by nuts 12. The bars 5 have slotted ends 6 to receive spring clips 9 adapted to hook over the top bar 10 of the mower so that the sheet 11 rests on the blades of the rotary cutter. In order to adjust the pressure of the plate on the blades, a bail 13 is secured by the nuts 12 to the plate 1, and is engaged by a presser bar 14 having a hooked end 15 secured to the bar 10 by a screw 16; in operation, the mower is pushed forwards, the cutter rotating in contact with the sheet 11 According to the Provisional Specification, the bars 5 have hooks to engage the mower bar 10 and are slotted to engage the studs 4.
Patent GB-1330821-A (GB)
Title: Use of inverters to produce a poly-phase ac output
IPC: H02M5/45
Filed: 1972-01-24
Abstract: 1330821 Inverting SIEMENS AG 24 Jan 1972 [25 Jan 1971] 3299/72 Heading H2F A circuit for changing the frequency of a multi-phase input A.C. source or for supplying a polyphase output of a given constant frequency from a variable input, where the output A.C. is produced by synthesis of pulses, comprises two, 3-phase inverters w 1 , w 2  connected in parallel to the output of a 3-phase, full-wave rectifying circuit G, the corresponding outputs, u, v, w and x, y, z of the inverters W1, W2 respectively being connected by chokes K1-K3 as shown, these chokes acting as voltage dividers and having tapping points a 1 , a 2 , a 3  respectively which act as output terminals for the 3-phase A.C. The output waveform is approximately sinusoidal and derived by the addition of pulsed outputs at u, v, w, x, y, z in combination with the voltage dividing properties of the chokes and the control provided for the inverters. The turns ratio of the 2 portions of the chokes is approximately 1/1 + V3 and the inverters are preferably transistor inverters.
Patent GB-1456687-A (GB)
Title: Tube former with wear insert
IPC: B29D23/00
Filed: 1974-01-24
Abstract: 1456687 Packaging HOBART ENG Ltd 17 Jan 1975 [24 Jan 1974] 03304/74 Heading B8C A former for manipulating an elongate sheet of packaging material into a tube comprises the combination of a body 10 and a wear insert 11 which jointly define a preformer surface 12 over which the sheet is pulled the preformer surface terminating in an edge 14 which defines an aperture through which the sheet is drawn to form a tube having its longitudinal edges slightly overlapped, the wear insert being detachably supported by the body and defining the edge 14 of the preformer surface and part 27 of the preformer surface. The body 10 may be a casting (Fig. 2) or of sheet metal (Fig. 3). The wear insert and body may have engaging planar surfaces, the wear insert being positioned by adjustable pins 32, and the wear insert may be moulded from p.t.f.e., nylon or polysilicone, or consist of a coating of p.t.f.e., nylon, polysilicone, ceramic or chromium alloy on a rigid base. Alternatively, the insert may have a constant thickness measured from surface 27, and the body being formed with a corresponding rebate. The body 10 (Fig. 2) may be relieved internally to allow the tube to expand within the body to prevent feed blockages. Alternatively, body 10 may include a mounting tube which closely surrounds the packaging tube.
Patent GB-1202143-A (GB)
Title: Improvements in or relating to cooked dough products
Inventor: CROMMELIJNCK HERMAN
IPC: A23L19/18
Filed: 1968-01-23
Abstract: 1,202,143. Snack foods. H. CROMMELIJNCK. 23 Jan., 1968 [27 Jan., 1967; 16 Jan., 1968], No. 3404/68. Heading A2B. Dough which has been deep frozen to below -12‹C. is cut into fine slices which are dipped and cooked before their complete thawing in molten fat or oil, preferably at at least 220‹C., and preferably with forced circulation to prevent local overheating, and afterwards dried. The dough preferably contains a maximum of 10% fat and 12% liquid. A suitable dough consists of flour, sugar, eggs, salt and butter. If desired, some of the sugar and eggs may be replaced by cheese. Pepper and other spices may be added. A flavouring such as almond may be added.
Patent GB-638334-A (GB)
Title: Improvements in or relating to microscopes
IPC: G02B7/14
Filed: 1948-02-05
Abstract: 638,334. Microscopes. HALLIMOND, A. F. Feb. 5, 1948, No. 3422. [Class 97 (i)] The microscope objective mounting described in Specification 600,021 is modified so that the clamping means are of a spring or resilient nature to hold the two parts together with adequate stability after adjustment. As shown in Fig. 3, a part 1 secured to the microscope tube has a lower flange 2 above which is a groove forming a slideway into which the passage of the part holding the objective in a socket 15 may pass. This passage is provided by a flange 17 of the U-shape shown in Fig. 5, spaced by a part-cylindrical wall 18 from a flange 16 secured to the socket 15. In assembling the mounting the flange 17 slides above the flange 2 until abutments 20 on the wall 18 engage the sides of the flange 2, this engagement, together with that of a screw 5 on the flange 2 with a radial slot 19 in the flange 17, centring the objective on the axis of the tube. In this position the flange 17 may be clamped down upon suitable projections 12 or abutment surfaces on the flange 2 by a washer 3a which may itself be a spring or which may be urged downwardly by a spring secured thereto. This washer is held at one end by the screw 5 and is pressed. upwards at the other by a lever 6 held by the washer in a recess 8 in the flange 2. On lifting the free end of the lever 6 the end 7 thereof passes into the recess 8 and allows the washer 3a to descend and clamp the parts together, projections 14 being formed thereon. for this purpose.
Patent GB-248898-A (GB)
Title: Improvements in or relating to the formation of dovetail or like recesses in mouldedblocks of clay or like plastic materials
IPC: B28B7/20
Filed: 1925-02-09
Abstract: 248,898. Universal Rubber Paviors (Manchester 1923), Ltd., Gaisman, L., and Brown, A. E. Feb. 9, 1925. Pressing plungers and dies.-Dovetailed or like recesses in moulded blocks of clay or other plastic material, such as described in Specification 214,433. [Class 87 (i), Bricks &c.], are formed by expanding mandrils, each comprising a metal rod or expander a with a rubber sleeve d thereon and adapted to produce the recess by direct lineal pressure followed by lateral pressure or by simultaneous lineal and lateral pressure. The rods a have enlarged ends of conical or partly conical and partly flat-sided formation, and are carried by a plate b which overlies the mould box c. The sleeves d have flanges which are clamped between plates e<1>, e<2> held together by screws f and adapted to slide up and down in the mould. The plate e<1> is provided with rods g passing through the plate b and bolted to a cross-bar L which is raised or lowered by a link i connected to hand or power-operated mechanism. Springs j encircling the rods normally hold the plates e<1>, e<2> against the plate b and the rubber sleeves raised. When the bar h is forced down against the action of the springs j, the sleeves are forced over the conical enlargements of the rods, and, being provided with longitudinal slits, spread outwards to impart the desired undercut formation to the recesses made by lowering the rods a into the clay or the like in the mould. The lower ends of the sleeves when unexpanded are countersunk to ensure that the bottom of the recesses are level. Instead of the rods and sleeves being lowered successively, the sleeves may be operated simultaneously with the rods. The under-faces of the rods a may have small protuberances or sinkings to produce sinkings or protuberances in the recesses, such as described in Specification 247,009, [Class 87 (i), Bricks &c.].
Patent GB-1156902-A (GB)
Title: Photoflash Device
Inventor: BEACH DAVID EASTON
IPC: G03B15/04
Filed: 1966-05-12
Abstract: 1,156,902. Flash apparatus. EASTMAN KODAK CO. May 12, 1966 [July 12, 1965], No. 3551/69. Divided out of 1, 156, 901. Heading G2A. The subject matter of this Specification is identical with that described in Specification 1,156, 901, but the claims are concerned with means to terminate movement the socket means and the package of photo flash-lamps between two flash-lamp firing positions when all the lamps of the package have been fired.
Patent GB-557446-A (GB)
Title: Improvements in and relating to the production of coloured yarns, and cloths made therefrom
IPC: D06P1/22
Filed: 1942-03-18
Abstract: 557,446. Dyeing textiles. WELCH, T. March 18, 1942, Nos. 3588 and 4885. [Class 15 (ii)] Coloration and sizing of yarns are effected in a continuous operation by (a) passing the yarn through a bath containing a dyestuff capable of development by oxidation, thence between nip rollers, then, while still wet or only partially dried, through size containing an oxidizing or fixing agent and drying, or (b) passing the yarn through a mordant colour, thence between nip rollers, then treating with a mordant, sizing while still wet and drying. In the latter case the size may be used in admixture with the mordant. In an example of process (a) the yarn is passed through an aqueous bath at 130‹ F. containing Caledon jade green, Calsolene oil HS, sodium hydrosulphite and caustic soda, thence passed between nip rollers, partially dried, passed through a size at 50-180‹ F. containing locust bean gum, glycerol and acetic acid or other fixing agent and dried by means of heated cylinders or hot air. In an example of process (b) the yarn is passed through an aqueous bath containing Anthracene brown FF, a wetting agent such as pine oil or Penetrex NL, acetate of chrome and ammonia, thence passed between nip rollers and with or without a partial drying, through an ammoniacal solution of cuprammonium sulphate and thereafter sized and dried.
Patent GB-579996-A (GB)
Title: Improvements in an electric prepayment meter mechanism
IPC: G07F15/00
Filed: 1944-02-28
Abstract: 579,996. Prepayment mechanism for meters. ENGLISH ELECTRIC CO., Ltd., TAGG, G. F., and WHITEHEAD, R. K. Feb. 28, 1944, No. 3640. [Class 27] A prepayment electricity meter supply switch operating member 1, pivoted at 3 and biassed by a spring 4 to open the contacts 2a, 2b, is connected through step-up gearing, shown as a toothed quadrant 1b and a pinion 8a, with a latch disc 9 having a projection 9a which engages behind a peg 10 on a latch lever 11 to hold the contacts closed. A spring 15 holds the latch lever peg against the disc but cannot prevent the spring 4 turning the disc and opening the contacts : this is done by a detent arm 12 mounted on the pivot 13 of the latch lever, and connected to it by a spring 17. A finger 12a of the detent arm engages the notched control disc 14 driven by the differential quantity mechanism. During prepayment, with the switch open as shown, a crank-pin 5 is turned by the prepayment mechanism through one revolution and rocks the operating. member 1 to close the contacts by engagement with an extension 1a. At the same time the quantity mechanism turns the control disc 14 to bring its notch 14a clear of the finger 12a. The operating member 1, through the gearing 1b, 8a turns the latch disc 9 anticlockwise to bring its projection 9a behind the peg 10, latch lever 11 yielding against spring 17 as the projection passes the peg, and finger 12a bearing down on the edge of the control disc 14. When the crank-pin 5 releases the operating member 1, the latch disc 9 runs back slightly due to spring 4, but is held by the peg 10 under the joint action of springs 15 and 17 with the finger 12a bearing down on the disc 14. This retains the contacts closed. When prepayment is exhausted, the notch 14a comes opposite the finger 12a and releases the detent arm 12 ; latch lever 11 is unable to hold the disc 9 and the switch is opened by spring 4. The mechanism is applicable to micro-gap switches, since the step-up gearing 1b, 8a results in smaller forces having to be dealt with by the latching mechanism than the switch operating force. The prepayment mechanism may be that described in Specification 572,389.