baber/WOPTO huggingface dataset:
Patent GB-479275-A (GB)
Title: Improvements in and relating to electric oscillation generators
IPC: H03K4/12
Filed: 1936-05-01
Abstract: 479,275. Valve generating circuits. FAUDELL, C. L., and WHITE, E. L. C. May 1, 1936, Nos. 24298/37 (divided out of 471,737) and 14126/36. [Class 40 (v)] In a relaxation oscillator, tlie long stroke of the saw-tooth wave is produced by charging (or discharging) the condenser through an inductance coil so that the condenser voltage swing is greater than the voltage of the supply source. The short stroke may be effected by discharging (or charging) the condenser through a blocking oscillator valve, or through a gasfilled valve, and this circuit may also include an inductance coil. The systemis adapted for the production of oscillations in phase opposition. As shown in the Figure, the condenser C2 is charged through a coil L1 and is discharged through the valve V which is connected in known manner as a blocking- oscillator. A second condenser C3 shunted by a coil L2 is connected between the valve cathode and the negative side of the supply source. The condenser C2 charges up to a voltage higher than that of the source whilst the valve V is blocked. When the valve is unblocked by the arrival of a control signal in the transformer coil S, the condenser C2 discharges through the valve and charges the condenser C3. The valve is rapidly blocked by the action of grid current charging the grid condenser C1; and the condenser C2 again charges whilst the condenser C3 is discharging through the coil L2. A gas-filled valve without back coupling may replace the valve V, and a coil may be connected between its anode and the condenser C2 so as to give the discharge an oscillatory character, Fig. 3 (not shown). The two condensers C2, C3 can be replaced by a single condenser Fig. 4 (not shown). According to the second Provisional Specification, the condenser C1 and the variable shunt resistance VR1 may be placed in the cathode lead between the condenser C3 and the cathode. Specifications 400,976, 423,832, and 471,737, are referred to.
Patent GB-451992-A (GB)
Title: Improvements in and relating to tubulous steam generators
IPC: F22B29/00
Filed: 1935-08-30
Abstract: 451,992. Steam superheaters. SIEMENS - SCHUCKERTWERKE AKT.- GES., Siemensstadt, Berlin. Aug. 30, 1935, No. 24300. Convention date, Sept. 21, 1934. [Class 123 (iii)] The regulation of superheat in a forced flow tubulous steam generator is effected by the variation of the quantity or temperature of washing liquid introduced into a washer 5 through which the steam from radiation and convection sections 1, 2, of the generator passes on its way to the superheater 3. Washing liquid may be supplied through a valvecontrolled pipe at a regulated temperature or, as shown, may be recirculated by a pump 8 from a collecting vessel 10 in which sludge is deposited ; make-up may be introduced through a pipe 12. By varying the steam pressure in vessel 10 the liquid temperature is regulated. Part of the circulating liquid may be introduced to flush through individual coils of the generator.
Patent GB-247253-A (GB)
Title: Improvements connected with heating elements of air heating apparatus
IPC: F28F3/12
Filed: 1924-10-15
Abstract: 247,253. Allen & Sons (Tipton), Ltd., and Weddell, A. Oct. 15, 1924. Heating air.-In air heating apparatus, a number of independent heating units x are rigidly fixed to each other a distance apart and parallel by direct weldings m so as to form a rigid grid-like structure with the aid of welded-on parts n, o, q. Distance pieces l may also be welded to the sides of the units. Adjacent nests of units may be welded to one another in situ at the parts n, o, q. Specification 226,315, [Class 64 (iii), Surface apparatus &c.], is referred to.
Patent GB-1075514-A (GB)
Title: Improvements in a feeding mechanism in a container forming machine
IPC: B65H3/38
Filed: 1964-06-12
Abstract: 1,075,514. Making containers. D. WAINBERG. June 12, 1964, No. 24506/64. Heading B5D. [Also in Division B6] The invention consists of a feeding mechanism 25 for a container forming machine 27 comprising a magazine 35 secured to the machine frame and adapted to support a plurality of pre-cut blanks 34 in an edgewise position at a predetermined inclination to the horizontal; a blank pick-up mechanism 26 mounted on the machine frame near the magazine and comprising a rack- and-pinion mechanism which is secured to and adapted to move a blank pick-up member 33 to and from the magazine and a container forming mechanism that is part of the machine. Magazine.-The magazine 35 consists of a gate formed from vertical posts 71, 72 joined at their lower ends by a transverse member and having their upper ends attached to a roller by means of journals. Plates 75, 76 are attached to the posts 71, 72 to retain the blanks. Blank supporting members (77), (78), (Fig. 1, not shown) are secured to bracket plates 79, 80 which are welded to the posts 71, 72, the members (77), (78) being parallel but each formed of bars 81, 82 inclined to the horizontal, thus allowing the blanks to reach the gate by means of a gravity feed. Blank pick - up mechanism. - A rack - andpinion mechanism activates the pick-up member 33 supported on a shaft 42. A toothed rack 36 has its lower end 37 pivotably secured to one of the machine walls 38 and its toothed portion (39), (Fig. 7, not shown) enclosed in housing 40, the pinion (41), secured to the shaft (42), also being enclosed in the housing 40. Oscillating arms 43, 44 have their upper ends mounted on the shaft 42 while their lower portions 47, 48 are secured to an oscillating shaft 49 having its ends journalled in bearings 50, (51), (Fig. 1), secured to the machine frame. The pick-up member 33 is formed from a hollow tube (58), (Fig. 7) having apertures (59) therein and suction cups (60) connected thereto. Air ducts (61), 62 lead into the tube from the vacuum pump mechanism (Fig. 2) which is used for suctionally withdrawing the blanks from the magazine and for releasing such blanks when they are in engagement with the face of a forming die. Container forming mechanism.-The mechanism 32 consists of a cross-head 64 slidably mounted on vertical posts secured to the machine frame. A plunger 31, suspended from the cross-head 64 engages a blank and forces it through the throat 30 of the forming die 29. Drive mechanism.-A motor 92 secured to a base 93 pivotably mounted to a wall of the machine operates the feeding mechanism and the container forming mechanism by means of a system of shafts and pulleys. The blank pick-up member, activated by the oscillating arms and the rack-and-pinion mechanism, transports a blank 34 (Fig. 6) from the magazine as the plunger 31 is emerging from the die 29, the blank being turned through 90 degrees in one direction while the pick-up member is rotating through 90 degrees in the opposite direction.
Patent GB-1030153-A (GB)
Title: Improvements in control apparatus for controlling operation of a plurality of fluid pressure operated rams
Inventor: HAUXWELL JACK
IPC: B66F9/20
Filed: 1962-06-26
Abstract: 1,030,153. Lift trucks. RANSOMES SIMS & JEFFERIES Ltd. June 17, 1963 [June 26, 1962], No. 24515/62. Heading B8H. [Also in Divisions F1 and F2] An apparatus, Figs. 2 and 6 (not shown), for controlling the operation of e.g. a plurality of hydraulic rams associated with the lifting and manipulating devices of a fork lift truck comprises a lever 17 arranged to independently control the movement of a pair of spool valves 13, 14, and a micro-switch 24 actuated in a plurality of the operative positions of the lever 17 to effect starting of a pump motor which supplies pressure fluid via the valves 13, 14 to the rams. The spool valve 13 is connected by a rocker arm 34 to a shaft 18, and the spool valve 14 is connected by a rocker arm 41 to a tubular shaft 19 coaxial with the shaft 18. The shafts 18, 19 have secured thereto respective collars 56, 55 having recesses 66, 65 for the teeth 64, 63 of a dog 62 secured to the lever 17. A saddle 58 pivoted on the shaft 18 between the collars 55, 56 has a horizontal bore (Fig. 6) in which the lever 17 is pivoted. The lever 17 is urged by a spring 61 to the position wherein the teeth 63 engages the recess 65 in the collar 55 so that forward or backward movement of the lever lowers or raises the spool valve 14. The collar 55 has a cam surface 95 engaged by a roller 94 rotatable on a rocker arm 87 secured to a shaft 83 so that rotation of the collar 55 moves the shaft 83 which has secured thereto an arm 91 adapted to operate the micro-switch 24. Operation of the spool valve 13 is effected by moving the lever 17 to the right, whereby the tooth 64 engages the recess 66 in the collar 56, and then rotating the lever. A cam surface on the collar 56 engaged by a roller 96 on an arm 88 secured to the shaft 83 is shaped so that movement in either direction results in operation of the micro-switch. A second lever 20 for operating spool valves 15, 16 and switch rocker arms 89, 90 is operated in a similar manner to that described in relation to lever 17.
Patent GB-488683-A (GB)
Title: New or improved process for the production of starch for food purposes
IPC: A23L29/30
Filed: 1937-09-09
Abstract: Potato starch is disintegrated by treatment with oxidizing agents, acids, alkalies, steam or other agents to such an extent that it will still thicken on boiling with water but will not form a jelly in concentrations of 7-10 per cent., and the dry starch is then heated at 100-160 DEG  C. to restore its jelly-forming properties.  The product may be used in making puddings.
Patent GB-486277-A (GB)
Title: Improvements in and relating to the production of fish-liver oil
IPC: C11B1/14
Filed: 1937-09-10
Abstract: Oils are obtained by boiling the livers of cod, halibut, or other fish with solid alkali hydroxide, allowing to cool and settle, removing the oil and water layer, and separating the oil therefrom. The separation may be effected by adding a solution of aluminium sulphate or other acid liquid to break the heated emulsion, and passing through a centrifuge or oil-separator; or by adding water to the emulsion, centrifuging and evaporating off residual water at normal or reduced pressure.  The livers may first be treated with steam or hot water, and skimmed of free oil. Specification 381,342 is referred to.
Patent GB-1034930-A (GB)
Title: Improvements in or relating to folding pocket knives
Inventor: FOX THOMAS RAYMOND
IPC: B26B1/02
Filed: 1964-06-06
Abstract: 1,034,930. Pocket knives. TAYLOR'S EYE WITNESS Ltd. June 1, 1965 [June 16, 1964], No. 24819/64. Heading B4B. In a pocket knife in which a one-piece U-section handle 2 has fitted thereinto a U-section metal lining 8 between the sides of which a spring blade 3 is pivoted, a U-section bolster 4 is secured to the lining by the pivot pin 5 for the blade, the pin passing through both sides of the bolster, both sides of the lining, and the tang 10 of the blade, and the back of the lining is notched on a length extending from a point 11 within the bolster to a stop end 17, to permit the entry into the back of the bolster of the free end of a spring 13 which is secured to the lining by a pin 14 passing through holes in the walls of the lining. The spring has a shoulder 16 engaging the stop end 17. A pin 6 carrying a shackle 7 passes through holes in the lining to secure the lining permanently within the handle. The back of the lining is left intact from the end of the notch within the bolster so as to form a strengthening bridge between the sides of the lining encased in the bolster. The bolster, which may be formed in two symmetrical halves is of a metal hard enough to withstand the repeated impact of the outer end 19 of the portion 20 of the blade on opening the knife and the lining is of relatively soft metal, e.g. brass. The handle 2 is of plastics material.
Patent GB-158530-A (GB)
Title: Improved implement applicable as a rake and as a hay-making implement
IPC: A01D78/00
Filed: 1920-08-27
Abstract: 158,530. Fonderies Oise et Seine. Jan. 30, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Adjusting parts of implements.-The rear end of an agricultural machine is supported by a wheel 8 mounted on an axle 53 bent into a vertical posi- -tion and passing through a guide 55 at the rear of the machine. A stop 61 is secured to the vertical portion and a spring 60 is interposed between this stop and a stop 59 below an externally screwed sleeve 56 adjustable in a guide 58 on the frame.
Patent GB-772846-A (GB)
Title: Method of producing insoluble metal compounds
IPC: C01G3/02
Filed: 1954-08-26
Abstract: Cuprous oxide or an oxide mixture comprising cuprous oxide is prepared by agitating small pieces of copper or copper alloy whilst partially covered with water to which a small quantity of an acid or a salt has been added and in an atmosphere of oxygen, oxygen-enriched air or air at 0-6 atmospheres gauge and at not less than 90 DEG C. As a result of mutual abrasion between the particles, the cuprous oxide is removed from the surface thereof and can be washed out of the rotary drum or similar retaining vessel, which is then recharged with a quantity of fresh liquid. The atmosphere should be renewed, e.g. by continuous blowing-off at such a rate that the escaping gas has only about half its normal oxygen content whilst maintaining the excess pressure. Acids and salts exemplified are sulphuric and/or hydrochloric acids and copper nitrate; in addition colloids such as cellulose pitch, glue, casein, agar-agar, dextrin and saponin are referred to as agents affecting the properties of the product, for example cellulose pitch assists in the production of particles of size 1-3m .  In one example, red particles of size 4-10m  suitable for use as a dye pigment were obtained; in other Examples alloys of copper and nickel and of copper and tin were used: in the first case cuprous oxide and a nickel solution were formed, in the latter, a mixed oxide from which tin dioxide was removed with caustic soda; in each example sulphuric acid and hydrochloric acids were used.
Patent GB-918570-A (GB)
Title: Tool racks and tool boxes
IPC: B25H3/04
Filed: 1961-07-10
Abstract: 918,570. Preserving tool edges. FOUNTAIN, L. S. July 10, 1961, No. 24881/61. Class 61. [Also in Group XVII] A tool rack or tool box comprises a lubricantretaining trough or base and a pad of material in the trough or base impregnated with a rustprohibiting lubricant, the rack or box being adapted to accommodate tools such that the tool edges are in contact with the impregnated pad or semi-absorbent lining thereon. A tool rack, Fig. 1, comprises a top tool support consisting of a pad-retaining member 1 housing a pad of material 2 having a single slit 2a or a number of individual slits through which tools such as wood chisels 3 can be inserted blade downwards. A lower tool support 4 comprises a trough which accommodates an absorbent pad of greater depth than the trough. The troughs are connected by end members 6 having rear flanges 7 apertured for attachment to a wall. In a modification the top tool support comprises a bar embodying a number of holes or spring clips. In another modification a wall mounted tool cabinet houses a number of tool racks. In another modification, Fig. 3, a tool box having a liquid-tight base 8 is provided with an impregnated pad 9. The pad may have a flat upper surface or recesses 10 to accommodate and locate drills, taps, scribers or the like.
Patent GB-1082703-A (GB)
Title: Improvements in or relating to electronic type composing apparatus
Inventor: CUTLER ALBERT ERNEST
IPC: G09G1/00
Filed: 1966-06-03
Abstract: 1,082,703. Photographic type-composing. COMMUNICATIONS PATENTS Ltd. June 3, 1966, No.24905/66. Heading B6W. In a photographic type-composing machine utilizing two cathode-ray tubes, of the general construction disclosed in Specification 965, 613, the spot on the first screen 11, tracing a circular path, is reflected by a semi-silvered mirror 14 on to an optical surface 16 and a photo-multiplier unit 38 having an opaque L-shaped or other reference mark. Signals from the unit 36 representing the position of the spot with reference to the mark, together with pulses from an oscillator 37, are transmitted to X and Y correction units 40, 39 the outputs of which carry correction signals to the deflecting mechanisms 31, 32 of the second tube 30 so as to produce a clear character thereon irrespective of small variations in the position of the spot.
Patent GB-221368-A (GB)
Title: Apparatus for measuring pressure of the atmosphere and other gaseous pressures
IPC: G01L7/18
Filed: 1923-10-06
Abstract: 221,368. Temple, W. Oct. 6, 1923. No Patent granted (Sealing fee not paid). Liquid-level and elastic diaphragm pressure gauges.-A sealed elastic vessel a filled with air under pressure is disposed within a chamber b which is filled with liquid and provided with an upwardly-extending pipe c open at the top to the atmosphere or other source of pressure to be measured, and at the bottom to the liquid in the chamber. A filling aperture f is normally closed by a cap g. The liquid used in the chamber is preferably a liquid or mixture of liquids which will not freeze at higher temperatures than -10‹ F. and will not be appreciably affected by temperature changes. A mixture of water and glycerine may be used provided with a surface film of oil to prevent evaporation. The liquid may be coloured and scales h, j are provided mounted on a panel k to which the tube c is attached by clamps m. The scales are graduated to indicate inches and pressure per square inch respectively. A thermometer n is also provided. For compensating for variations in temperature a chamber p communicating with the chamber b through a valve q is provided with a force pump r whereby the pressure on the liquid in the chamber p may be varied, the scale s being calibrated to show the necessary height of the liquid in the chamber p at various temperatures.
Patent GB-250199-A (GB)
Abstract: 250,199. Chemische Fabrik auf Actien, (vorm. E. Schering). April 6, 1925, [Convention date]. Formic acid of high concentration is obtainea by treating aqueous formic acid with the anhydrous form of a compound which can tenaciously retain a portion of its water of crystallization, and then either distilling off the formic acid or separating it by filtration and then distilling. The anhydrous compound is added only in such quantity that the stable hydrate is formed. The method may be applied to reaction mixtures containing formic acid, whilst the salt residue may be dehydrated and re-used. Examples of the use of anhydrous copper and magnesium sulphates are given. The Specification as open to inspection under Sect. 91 (3) (a) is not restricted in respect of the amount of anhydrous compound added. This subject-matter does not appear in the Specification as accepted.
Patent GB-1211896-A (GB)
Title: A mechano-electrical converting device
IPC: H04R21/02
Filed: 1968-05-24
Abstract: 1,211,896. Stress sensitive resistor. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 24 May, 1968 [26 May, 1967], No. 25053/68. Heading H1K. An electromechanical transducer comprises a semi-conductor wafer 1 of thickness less than 100 Á containing an impurity forming a deep level in the forbidden band so that any variation in pressure will produce a variation in electrical resistance of the wafer. The wafer has at least two electrodes, one 2 of which is of gold and forms a Schottky barrier with the wafer and the other 3 is a ringlike ohmic electrode of gold and antimony. Leads 6 and 7 connect these electrodes with the terminals 8 and 9. Stress is applied to the wafer which is of N-type silicon doped with gold, cobalt, nickel or iron by means of a needle 4 fitted to an elastic plate 5.
Patent GB-690064-A (GB)
Title: Improvements in and relating to apparatus for machining contour or like surfaces
IPC: B23Q35/18
Filed: 1950-10-13
Abstract: 690,064. Copy-turning. BAKER, S. E. Oct. 8, 1951 [Oct. 13, 1950], No. 25084/50. Class 83 (iii). [Also in Group XXIX] A copying machine comprises a tracer 24 controlling means for simultaneously adjusting the swash-plates of two pump-andmotor units 7, 13 which feed. a cutting-tool 3 in two angularlydisposed planes. In a lathe for turning a wheel a, the units 7, 13 rotate feed-screws 6, 5 for feeding a cross-slide 1 and a vertical toolslide 2. Air at a constant pressure, say 15 lbs. per square inch, is supplied to an inlet 21 of a T- junction 19. The air passes to an outlet nozzle, controlled by a flexible blade 23 attached to the tracer 24, and to bellows 14, 34. As the tracer follows a template 20, the pressure supplied to the bellows varies, causing the swash-plate 8 of the unit 7 to be adjusted and also rocking a cam-plate 31. The cam 31 controls the outlet 30 of a T-junction 29 to vary the pressure supplied through a nozzle Y to a bellows 25 which controls the swash-plate of the unit 13. The arrangement is such that when the cross-slide 1 is fed at maximum speed the vertical slide is at rest. The swash-plate 8 may be adjusted to give a reverse feed to the slide 1. In a modification, a single bellows is provided and the swash-plates are mechanically interconnected-to give the required control. The Provisional Specification states that a step-up servo device may be interposed between the bellows and swash-plate.
Patent GB-643494-A (GB)
Title: Improvements relating to the formation of metallic films by thermal evaporation
IPC: C23C14/26
Filed: 1947-09-12
Abstract: 643,494. Coating with metals. POLYTECHNIC INSTITUTE OF BROOKLYN. Sept. 12, 1947, No. 25097. Convention date, Sept. 26, 1946. [Class 82(ii)] A resistance element of low temperature coefficient is formed by heating a metallic vaporizing filament coated with an alloy comprising a component having a solvent action on the filament to a temperature sufficient to vapourize the alloy, exposing the surface of a clean dielectric, e.g. glass, carrier to the vapour within an evacuated space maintained at a pressure less than 10-<SP>4</SP> mms. of mercury, and maintaining the carrier at not less than 300‹C. but not measurably above 350‹C. during exposure to the vapour, the period of heating of the filament not exceeding the period during which it is kept completely coated by the alloy initially applied thereto and being less than the time required for the dissolved metal of the filament to diffuse through the coating to any appreciable extent. The alloy, which may be nickelchromium or nickel-copper, may be evaporated from a tungsten filament at a temperature of 1300‹-1400‹C. Several coated filaments may be used in succession, no filament being used for longer than three minutes. The metal coating may be protected by vapour deposition of quartz or magnesium fluoride. Coating may be effected in a glass bell 1 seated on a baseplate 2 having a central aperture connected to evacuating apparatus and carrying a terminal plate 3 having heater filaments 4-8 mounted thereon, filaments 7 and 8 carrying cups for vaporizing the protective coating : a transparent cylinder 10 surrounds the plate 3. A carrier-supporting jig, supported on vertical rods 2a-2d, comprises arcuate rails 12, 13 adjustably mounted on the frame of the jig and adjustably spaced by a bar 15, the centre of curvature of the rails being at the filament 4 : the rails carry adjustable stops 12a. A test strip 16 supported below the bar 15 is connected to a Wheatstone bridge so that its resistance may be determined at any stage of the evaporation process. The rods 2a-2d also removably support a heater unit comprising a metallic box 20 supporting by means of insulating rods 21, in arcuate formation, a heating filament, and surrounded by a copper heat shield 27. The temperature of the carrier is determined by means of a thermocouple on the jig.