baber/WOPTO huggingface dataset:
Patent GB-907567-A (GB)
Title: Improvements in or relating to apparatus for measuring low pressure
IPC: G01L9/12
Filed: 1959-02-18
Abstract: 907,567. Pressure transducers. PHILIPS ELECTRICAL INDUSTRIES Ltd. Feb. 18, 1959 [Feb. 21, 1958], No. 5610/59. Class 40 (1). In a pressure transducer in which a differential capacitor comprising two fixed plates and a third plate movable between the fixed plates by the pressure medium and in which variations in capacity due to variations in pressure cause a variation in an alternating voltage which after demodulation provides a direct voltage which is a function of the pressure being measured, only the capacity between the fixed plate and the movable plate on the side which is not exposed to the pressure medium is used to affect variation in the alternating voltage. Fig. 1 shows the prior art system in which the differential capacitor 2 is connected in the adjoining arms of a bridge circuit, the unbalance voltage of which is detected by detector 9, indicated on meter 10, and also used to control a direct voltage applied to the plates of the differential capacitor via resistors 14 and 15 to tend to restore the movable plate to its original position. The modification proposed by the invention is to connect the plate of the differential capacitor on the side to which the pressure medium is admitted, and which may therefore be affected by the dipole moment of the pressure medium as well as by movements of the movable plate, so that it no longer affects the balance of the bridge by replacing this capacitance by a capacitor 17, Fig. 2, which has a value equal to the mean value of the differential capacitor, the D.C. conditions of the circuit being maintained by the addition of a high resistor 16; the remainder of the circuit being similar to that of Fig. 1.
Patent GB-100720-A (GB)
Title: Improvements in and relating to Chairs for Railway Rails and the like.
Inventor: LUMSDON HANCE
IPC: E01B9/54
Filed: 1916-04-17
Abstract: 100,720. Lumsdon, H. April 17. 1916. Chairs with adjustable or separate jaws.-A chair with one fixed and one movable jaw has the movable jaw 5 secured by a screw 6 or bolts passing through the rail web and into the fixed jaw. The movable jaw is also secured to the chair base by a bolt 7, preferably working in slot in the chair base.
Patent GB-373277-A (GB)
Title: Improvements in or relating to the manufacture of non-splintering and other compound glass
IPC: B32B17/10
Filed: 1931-02-23
Abstract: 373,277. Compound glass. DEHN, F. B., 103, Kingsway, London.-(Rohm & Haas Akt.-Ges.; 42, Weiterstadterstrasse, Darmstadt, Germany.) Feb. 23, 1931, No. 5660. [Class 140.] In a process for making compound glass consisting of two or more glass sheets and one or more elastic intermediate layers the squeezing out of the intermediate layer during pressing is prevented by surrounding the edges of the glass sheets with a frame which either possesses a thickness less than the total thickness of the compound glass assembly or is composed wholly or in part of compressible material, so as to allow for the subsequent compression of the compound glass. The strips 3, Fig. 1b, composing the frame may be of metal, rubber, cork, wood, glass or artificial resin, and may be provided with one or more elastic strips of rubber 4, Fig. 1c. The edges of the glass may be surrounded by elastic strips 5, Fig. 4b, of rubber or cork held in position by or secured to a frame 6 of wood or metal, the elements of which may be held together by pins 7. In a modification the frame is formed by partially or wholly severing strips 3, Fig. 2b, from the edges of the glass sheets 1, without severing the intermediate layer 2. The strips 3 may be made continuous as in Fig. 3b.
Patent GB-171646-A (GB)
Title: Improvements in and relating to machine hack saws
IPC: B23D49/00
Filed: 1921-02-21
Abstract: 171,646. Thompson, W. P., (Fortuna- Werke Spezial-Maschinenfabrik). Feb. 21, 1921. Reciprocating-saw machines.-In a hack-saw machine wherein the saw is raised on the return stroke by a cam such as a on the shaft of the crank disc, the cam rocks a lever e pivoted at f and carrying a vertical spindle h threaded into a nut n carried by the guide o, whereby the guide is tilted upwards on the return stroke. On the forward stroke the lever e brings a coned member i into contact with a bevel wheel l, continuously rotated by means of a bevel wheel p driven by a pulley on the crank-shaft, thus rotating the spindle h and feeding the saw down. By means of a hand-adjusted cam t on a spindle s, the lever e can be placed just clear of the cam a when the position of the guide does not alter, or by a further movement of the cam a second bevel wheel m can be brought into action to rotate the spindle h in the reverse direction and so raise the saw guide. An adjustable stop z attached to the guide is arranged to bring the lever e back to the neutral position when the guide o has been raised a predetermined distance.
Patent GB-179348-A (GB)
Title: Improvements in or relating to money or the like delivering apparatus
IPC: G07D1/08
Filed: 1921-02-21
Abstract: 179,348. Kelly, T. Feb. 21, 1921. Money - delivering apparatus.-In coin or other token containers of the type wherein one or more tubular containers each has a spring - backed piston whereby superimposed coins on the piston are successively delivered to a partly-open end of the container for easy withdrawal b y the finger of the operator, the piston 2 is adapted to be hand depressed by means of an exterior manipulating-stud 5 to facilitate insertion of the coins into the container. The stud 5 is fixed to the piston 2 and is adapted to pass slidably through a slot 7 in the side of the container 1, one end of said slot being provided with a locking recess 14 adapted to receive the stud 5 during the filling operation. The container may be attached by a bayonet 18 to a money-bag 21 or provided with a stand 25.
Patent GB-907052-A (GB)
Title: Improvements in or relating to packaging machines
Inventor: DAVIS FREDERICK LEWIS
IPC: B65B9/02
Filed: 1960-02-18
Abstract: 907,052. Wrapping machines. LONDON RUBBER CO. Ltd. Feb. 10, 1961 [Feb. 18, 1960], No. 5815/60. Class 94 (1). A machine for enclosing articles between opposed webs 25, 26 of thermoplastic material comprises an intermittently advancing chain conveyer 16, a means 32 for transferring articles from the conveyer to a feed trough 18 and pusher means 33 for advancing the article along the feed trough 18 into engagement with the webs 25, 26 between heat sealing rollers 19, 20. Articles are placed in carriers 17 mounted on the conveyer 16. As the conveyer 16 comes to rest with a carrier 17 adjacent a portion 31 of the feed trough 18 the article is swept from the carrier 17 into the trough 18 by the reciprocating claw member 32, Fig. 4, and while still deformed by the member 32 is fed by the pusher 33 down the trough 18 between the rollers 19, 20. These rollers 19, 20 carry complementary cavities 24 to accommodate the articles and are heated and spring loaded to cause the webs 25, 26 to be united around the articles. The completed chain package is drawn away by further rollers 34, 35 and may be cut or perforated between successive articles by a reciprocating knife 36. Conveyer 16, pusher 33, knife 36 and claw member 32 are all operated by systems of levers working from a number of cams on a single driven cam shaft 47. The lever systems are spring loaded so as to become automatically inoperative should the machine become jammed. A microswitch is arranged to stop the machine if the lever system operating the pusher 33 becomes inoperative. Means 106 may be provided for discharging a measured quantity of fluid on to the article as it passes from the trough 18.
Patent GB-573937-A (GB)
Title: Improvements in or relating to the production of stable fat-soluble vitamin-containing products
IPC: A23K1/16
Filed: 1943-04-13
Abstract: Powdery, non-oily products for fortifying human and animal foods and containing a fat-soluble vitamin less susceptible to destruction by oxidation, are obtained by incorporating a crude vegetable oil and a fat-soluble vitamin containing fatty material, in amounts together less than 30 per cent., into a finely-divided vegetable material. The amount of oil is equal to or greater than the amount of vitamin-containing material incorporated.  The total fat content of the product is preferably at least 5 per cent.  The oil may be stirred into the vegetable material after impregnation of the latter with the vitamin-containing fatty material or the vegetable material may be impregnated with a solution in the oil of the vitamin-containing fatty material.  The vegetable material and oil preferably contain natural antioxidants, or antioxidants may be added to the product.  Crude oils of the following are suitable: maize, maize germ, soya bean, cottonseed, wheat germ, peanut, palm, coconut, sesame seed, rice bran.  Natural or synthetic material rich in one or more of the fat-soluble vitamins, A, D, E and K, may be employed, e.g. cod liver, shark liver, halibut, sardine, tuna liver or palm oil, concentrates of such oils fortified, if desired, with vitamin concentrates, or fractions of such oils prepared by vacuum distillation or by the process of Specification 550,983.  The vegetable materials capable of absorbing large amounts of fatty material are: wheat germ pressed cake flour, maize oil meal, dried distiller's maize or rye solubles and linseed oil meal.  Mixtures of such vegetable material with vegetable material, such as soya bean meal, oat meal, wheat bran and maize germ meal, having less affinity for fatty material, may be employed.  Absorption of fatty materials by the latter vegetable materials may be increased by treatment of the oily mixture with highly polar solvents substantially immiscible with fatty materials, e.g., methanol, ethanol or isopropanol containing at least 9 per cent. of water, and subsequent removal of the solvent.  Natural antioxidants in the vegetable material may be made more readily available by preliminary treatment of the vegetable material with the solvent mentioned, followed by removal of the solvent, or by preliminarily forming the vegetable material into an aqueous slurry, removing the water therefrom and finely dividing the dried material.  The vegetable materials employed ordinarily contain Vitamin B1 and riboflavin; these vitamins and other water-soluble vitamins, e.g. vitamin C, pantothenic acid, biotin and pyridoxine, may be incorporated into the product.  The products may be made into tablets.
Patent GB-110501-A (GB)
Title: Hose Clamp.
Inventor: HECOX CHARLES EDGAR
IPC: F16L33/12
Filed: 1917-04-26
Abstract: 110,501. Hecox, C. E. April 26, 1917 Clips, band.-Relates to hose clamps or clamping-rings of the type wherein the embracing ring is constricted around the hose &c. through the medium of a clamping-member connected thereto and wherein a notched extremity of the clamping- member engages a tooth or catch carried on the embracing ring for locking the same. The embracing ring 3 has overlapping ends 4, 5, and the clamping-member 13 is pivoted to an angular arm 18 adjustable relatively to the ring 3 by screwing. The catch 27 for engaging a notch 24 on the member 13 is mounted on a spring piece 26 riveted to the ring 3.
Patent GB-228374-A (GB)
Title: Improvements in and relating to vehicle brakes
IPC: B60T7/14
Filed: 1924-03-07
Abstract: 228,374. Burridge, C. E. March 7, 1924. Stop-gear operated by driver leaving his seat. -Relates to safety brakes for vehicles of the type in which the brakes o are connected to a pivoted seat c which, when vacated by the driver rises under the influence of springs d and applies the brakes automatically. According to the invention, the bell-crank lever j which operates the brakes o is connected to the seat c bv a rigid or flexible member h and a rigid member f, the members h, f being connected together by a knuckle joint g and the member f being connected rigidly to the seat c. The springs d are kept in place by studs e. The seat c may be held down by a bolt p engaging holes in the rigid member f.
Patent GB-1011242-A (GB)
Title: Improvements in interference grating systems
Inventor: WESTBROOK MICHAEL HEREWARD
IPC: G01D5/38
Filed: 1961-02-17
Abstract: 1,011,242. Electric selective signalling &c. ASSOCIATED ENGINEERING Ltd. May 16, 1962 [Feb. 17, 1961; March 10, 1961], Nos. 5937/61 and 8839/61. Heading G4H. In an interference grating system for measuring displacement, there are a number of sensing members arranged across the gratings displaced relatively to each other so that displacement signals are produced differently phased on each sensing member, these displacement signals being combined to give a measurement of greater accuracy. In the form of Fig. 1 (Provisional Specification 5937/61) a transparent fixed grating 1 overlaps a reflective movable grating 2. The grating 1 has 1999 lines over a length of two inches and the grating 2 has 2000 lines over the same length. A relative movement of one thousandth of an inch causes the interference line to move 2 inches. Lamp 3 provides a beam of light which is reflected from the lower grating to fall on a photo-cell 5 which produces wave 12, Fig. 3, one cycle per thousandth of an inch. The wave is clipped by slicer 8 to produce wave 12 and applied to a Schmitt trigger 9 which gives wave 13. This is differentiated at 10 to produce pulses 14. Across the width of the grating there are ten photo-cells producing waves as shown at 11-14, Fig. 3, but displaced by 36 degrees. All the outputs are mixed at 15 and the combined wave 16 is applied to the counter 17 which counts forwards or backwards according to the direction of movement. Each pulse entering the counter represents a movement of one tenth of a thousandth of an inch. One of the photo-cells is compared with the value standing in the counter in gate 18 to derive an error signal if either the photo-cell fails to operate or the counter fails to count. In the form of Fig. 1 of Provisional Specification 8839/61 one gating is formed on the lower face of a glass block 4, the other face 5 of which is silvered. The reflecting grating 1 is suitably spaced from the block 4 and a light source 7 is arranged to project a beam of light 3 so that a number of internal reflections take place through the gratings before it is received in photo-cell 9. The dimensions are such that the light is reflected from the gratings at the same point in successive interference patterns so that light or dark effects are amplified. There are ten photo-cells 9 connected as before.
Patent GB-1105229-A (GB)
Title: Gyromagnetic resonance spectrometer having a digital type scan synchronized with a specturm time averaging device
IPC: G01R33/46
Filed: 1967-02-08
Abstract: 1,105,229. Gyromagnetic resonance spectrometer. VARIAN ASSOCIATES. Feb. 8, 1967 [Feb. 17, 1966], No. 6098/67. Heading G1N. To obtain a linear output spectrum from a gyromagnetic resonance spectrometer having an enhanced signal to noise ratio, the spectrum is repeatedly scanned in a series of equal steps. For each scan the signal is sampled at a number of frequencies and the frequency components of each scan are summed over a number of scans. In a spectrometer, in which the probe 1 includes both a sample under investigation and a reference sample used to control the D. C. polarizing field to maintain the resonance condition of the spectrometer constant, either the r. f. field of the sample under investigation or the r. f. field of the reference sample is scanned, in the latter case this results in a corresponding scanning of the D. C. field. The resonance output signals from the sample under investigation, obtained at the output of a phase sensitive detector 5, are fed to an averaging device 8 in which the signals at particular frequencies are stored in channels over a period of, e.g. 1, 000 scans. The channel selected by the device for each signal may be synchronized with the sweep steps, to be the same for each scan, by a programmer 23 which controls a digital frequency synthesizer 21 producing the digital sweep. This programmer is also used to synchronize the digital movement of the paper or pen of a recorder 9 connected to the output of the device 8.
Patent GB-286092-A (GB)
Title: Improvements in and relating to washing machines for crockery and the like
IPC: A47L15/42
Filed: 1927-03-04
Abstract: 286,092. Rendle, V. and Coverley, O. R. March 4, 1927. Plates, dishes, and the like, washing.-In a washing machine in which liquid circulated by a pump passes through a filter, a rose or jet is provided to spray on to the filter liquid fed from the circulating system. In the machine shown, which is adapted for washing dishes, the dishes are placed in a basket 3 which is mounted to revolve in a casing 1 about a hollow spindle 4. Liquid from a storage tank 9 is pumped through the spindle to spray pipes 5, 6, returning from the casing 1 to the tank by a pipe 10. A filter plate 11 is stretched across the tank 9 to intercept solid matter from the pipe 10. The filter is kept clear by means of liquid sprayed from nozzles 14 on a pipe 12, which is branched from the spindle 4. In a modification, the filter plate is horizontal and located above the spray nozzles. According to the Provisional Specification, an inclined filter or a cylindrical filter may be employed.
Patent GB-455547-A (GB)
Title: Improvements in or relating to froth flotation devices
IPC: B03D1/16
Filed: 1936-02-29
Abstract: 455,547. Concentrating ores. ORELLI, E. VON, 35, Talacker, Z³rich, Switzerland. Feb. 29, 1936, No. 6175. Convention date, March 22, 1935. [Class 82 (ii)] [See also Group VI] A rotary air distributer 6 for froth flotationapparatus is formed as an inverted truncated cone with perforated walls and has an unperforated upright conical top and a flat bottom with agitating wings 7. Air supplied to the distributer through a hollow shaft 3 issues through the perforations and is broken up by baffles 9 on the lower parts of the walls of the cell which converge towards the bottom. Diagonal baffles 10 may be provided to suppress the agitation in the upper part of the cell. Additional reagents may be supplied to the cell by a pipe 11.
Patent GB-667964-A (GB)
Title: Improvements in angle drives particularly for angle drills
IPC: B23Q5/04
Filed: 1949-03-04
Abstract: 667,964. Hand drills. MACFARLANE, W. March 8, 1949 [April 21, 1948], No. 6222/49. Class 83 (iii). [Also in Group XXXIV] An angle-drill comprises a housing 5 containing a drive-shaft 1 and a driven shaft 9 disposed at an angle to each other and connected by bevel-gears 2, 8 secured to the shafts, and antifriction spherical surfaces 10, 11 provided on the adjacent end faces of the gears or shafts and adapted to bear on the angularly-disposed faces of a thrust element 12 which is adjustable by means of a screw 13 to compensate for wear in the gears. Sleeves 3, 7 are provided in the ends of the housing to react the end thrust of the shafts, and a ball 2a may be provided between the shaft 1 and gear 2 to prevent damage to the ends of the threads on the shaft. The spherical surfaces 10, 11 may be secured in recesses in the gears by spinning the metal of the gears over the diameter of the surfaces, or formed integrally with the gears. The element 12 may be of spherical, cylindrical or polygonal basic shape.
Patent GB-269297-A (GB)
Title: Improvements in fans or air propellers for use with radiators and coolers and the like for application with internal combustion motors and other purposes
IPC: F01P5/02
Filed: 1926-03-09
Abstract: 269,297. Foy, F. March 9, 1926. Screw fans; mounting.-A fan or propeller 18 and the pulley 20 by which it is driven are supported by end plates 13, 14 and ball races 11, 12 at the end of a sleeve 10 mounted to rotate on a spindle 7 with opposed cones carrying ball races in the manner commonly used in the pedals or wheel hubs of bicycles or the like. The sleeve and ball races are welded, brazed or soldered to ensure the fan and pulley rotating together. In the form shown in Fig. 3 the fan 18 is formed from sheet metal and the pulley 20 is of wood. The spindle 7 can be mounted by its screwed end in any suitable support. A modified form of pulley, shown in Fig. 4, consists of two dished metal plates 23, 24 secured together to present flanged conical outer surfaces 25, 26 for the reception of the driving belt. In another modification a plate with a flanged belt engaging surface 31, Fig. 5 is secured to a flat disc 33, while in the form shown in Fig. 6 a V-shaped rim 37, 39 is formed by the two discs 34, 35 the dished part of the former 34 fitting inside that of the latter 35.
Patent GB-496750-A (GB)
Title: Automatic pitch regulating device for screw propellers
IPC: B64C11/36
Filed: 1937-03-05
Abstract: 496,750. Screw propellers. O'LEARY, D. March 5, 1937, No. 6565. [Class 114] Automatically adjustable blades of screw propellers wherein the blade axes intersect the neutral axes in a common point on the propeller axis a are disposed so that the blade mounting axis b is offset ahead of and at an angle to the perpendicular d and the neutral axis c is offset behind b but ahead of d and the two angles bvc, and cod of offset are equal. Each blade 3 is mounted eccentrically in a block 1 carried by sockets 2 on a boss 4. Each blade has a locking device comprising a pivoted lever 8 having a weighted end 9, a spring restraint 10, and a catch end 11 adapted to enter a depression 12 in the blade block 1. The lock is released when at a predetermined speed centrifugal force on the weight 9 is sufficient to overcome the spring 10. Specification 441,738 is referred to.
Patent GB-1361723-A (GB)
Title: Light measuring device for use in holography
IPC: G03H1/04
Filed: 1972-02-11
Abstract: 1361723 Controlling helographic exposures FUJI PHOTO FILM CO Ltd and FUJI SHASHIN KOKI K K 11 Feb 1972 [12 Feb 1971] 6617/72 Headings G2A and G2J The ratio of the intensities between the object light L0 and the reference light Lr in a hologram forming apparatus is measured by a light measuring device P 1  (P 2 ) comprising at least one photoreceiver or photo-electric cell arranged at or in a position equivalent to the position of the photosensitive material, means being provided to selectively guide the reference light to the photoelectric cell separately from the object light and to guide the object light to the same or another photo-electric cell, either alone or together with the reference light. A grey density wedge N is variably positioned in the reference light path so that the ratio may be adjusted to a desired value. After adjustment, the photo-cells are replaced by a sensitive material, and the exposure is controlled by a shutter Sl for a time determined by a stored value of the light intensities. Various arrangements of the light measuring device are described using light loads, polarizing filter or total reflection techniques for selectively permitting one or both beams to be incident upon one or two photo-cells.
Patent GB-491534-A (GB)
Title: Production of citric acid
IPC: B41J29/15
Filed: 1937-03-05
Abstract: Citric acid is produced by mould fermentation of a monosaccharide solution under a mycelium developed on a polysacchraide solution with simultaneous formation of citric acid but substantially no gluconic acid.  A 15 per cent aqueous sucrose solution containing nutrient salts and having a pH of about 3,3 is inoculated with, e.g. aspergillus niger, in a flat aluminium pan, the solution having preferably a maximum depth of 1 cm.  After 5 or 6 days the citric acid solution produced is run out from under the mycelium and a 15 per cent solution of refined corn sugar (92-96 per cent glucose) and nutrient salts run in. This is fermented to citric acid within about 3 days when further batches may be fermented under the same mycelium. The depth of monosaccharide solution may be 1,5-3 cms.  The sugar content of the solutions may be from 12-30 per cent.  Temperature should be from 31-35 DEG  C., and air circulation is advantageously limited. Polysaccharides and monosaccharides which may be used include starch, sucrose, or maltose, and glucose, fructose or galactose respectively.  U.S.A. Specification 1,849,053 is referred to.