baber/WOPTO huggingface dataset:
Patent GB-495751-A (GB)
Title: Improvements in or relating to apparatus for actuating hydraulic brake systems
IPC: B60T11/228
Filed: 1938-04-28
Abstract: 495,751. Hydraulic brakes. WEIHE, H. K. April 28, 1938, No. 12787. Convention date, April 28, 1937. [Class 103 (i)] A hydraulic transmission brake comprises a master cylinder 8 having a connection controlled by a non-return valve 10 and a connection 26 controlled by the master piston 5, and normally open in release, to a reservoir 11 of liquid acted on by a spring piston 15 which maintains a slight pressure in the system and prevents the formation of a vacuum. A spring controlled valve 18 allows the reservoir to be filled from the top. Excess fluid which flows from the reservoir past the valve 10 on release, returns to the reservoir through the port 26.
Patent GB-128969-A (GB)
Title: Improvements in Suction-actuated Liquid Feed Systems.
Inventor: STOKES CHARLES LAWRENCE
IPC: F02M37/02
Filed: 1917-09-05
Abstract: 128,969. Stokes, C. L. Sept. 14, 1916, [Convention date]. Addition to 110,170. Vacuum apparatus.-The parent Specification describes suction-actuated apparatus for raising liquids, for example liquid fuel by continuouslyapplied suction from a tank to a service reservoir at a higher level whence it is discharged by gravity to a carburettor, &c., air being admitted to the ascending liquid column, such air, after entering the service tank, being drawn away to the source of suction, e.g. the induction pipe. According to the invention, atmospheric air is admitted intermittently to the service reservoir in sufficient quantity to prevent the suction from acting on the pipe leading from the main tank and at the same time allowing the fuel to be discharged. The service reservoir 15, Fig. 1, is connected to the main low-level tank 10 by a pipe 14, to the carburettor C by a pipe 30 with a non-return valve 31 and to the engine induction pipe 24 or other source of suction by a pipe 23. The liquid flows from the tank 10 through a conduit 12, Fig. 2, into a chamber 13 where it is charged with air through the nozzle 16 of a pipe 17, the upper end 17<a> of which is above the tank 10. The aerated liquid is then drawn by suction through the pipe 14 to the service reservoir 15, Fig. 3, which contains a float 22 carrying a valve 21 adapted to close the discharge orifice of the pipe 14. The float carries also a cranked piece 41, 43 which actuates an air valve 36 through an arm 40 thereon. The liquid raised by suction remains i.n the reservoir, but the air with which it was charged passes through the pipe 23 to the engine. When the reservoir is full the float opens the valve 36 which admits air and prevents further suction acting on the pipe 14. The air valve is closed and suction re-exerted when the reservoir 15 is emptied. The valve 21 may be dispensed with, but is desirable if the main tank 10 should be above the level of the service reservoir. The service reservoir and carburettor may be constructed as one unit.
Patent GB-643927-A (GB)
Title: Improvements in or relating to acoustic ear-protectors
IPC: A61F11/10
Filed: 1948-05-10
Abstract: 643,927. Ear protectors. ZWISLOCKI, J. May 10, 1948, No. 12834. [Class 81(ii)] An ear protector comprises a plug for insertion into the external meatus of the ear so shaped and dimensioned as to provide a low pass acoustic filter.. In one form the plug comprises a tube f leading to a chamber d, this being closed except for a small aperture e communicating with the exterior. This provides a two-element filter, one element comprising the chamber d and part of the tube f, and the other comprising the remainder of the tube and the volume of the external meatus. The whole assembly is retained in the ear by a resilient sheath c. In a modified form, see Fig. 2 (not shown), a tube corresponding to f extends through to the outside of the ear and communicates with the surrounding chamber through transverse orifices. It is also proposed to form a single element filter comprising a single tube so dimensioned that with the contained volume of the external meatus it forms the desired low pass filter.
Patent GB-1162903-A (GB)
Title: Improvements relating to Gelling Alkali Metal Silicates
IPC: H04L7/00
Filed: 1967-03-20
Abstract: 1,162,903. Silicate compositions. PROGIL. 20 March, 1967 [24 March, 1966], No. 12885/67. Heading C3N. [Also in Divisions Cl and El] A composition comprises an aqueous solution of an alkali metal silicate and a gelling agent comprising a mixture of the methyl esters of formic, acetic and propionic acids, which may be in the proportions of 10 to 25% methyl formate, 86 to 60% methyl acetate and 4 to 15% methyl propionate by weight. The gelling agent may also contain 14-25% of methanol, and may be in the form of an aqueous solution. The crude product of the esterification with methanol of a mixture of the acids is suitable. The alkali metal silicate solution may have a molar ratio of silica to alkali metal oxide of from 2À0: 1 to 5À0: 1, a solids content of 25-40%. by weight, and be mixed with the gelling agent in the ratio of 5 to 50 parts of gelling agent per 100 parts by weight of the anhydrous mixture. The composition may be introduced into soil in a liquid form, and forms a gel, stabilizing and consolidating the soil.
Patent GB-1517679-A (GB)
Title: Apparatus for explosive application of coatings
IPC: C23C24/04
Filed: 1977-03-28
Abstract: 1517679 Ejector apparatus for the explosive discharge of powders A I ZVEREV and A S BONDARENKO 28 March 1977 12894/77 Heading F1E [Also in Division B2] Apparatus for discharging powdered coating materials comprises an elongate explosion chamber 1, Fig. 1, closed at one end and open at the other, a spark-plug 4 mounted in the chamber 1, a chamber 2 for preparation of an explosive mixture and communicating with the chamber 1, and a device 3 for metering the pulverulent coating material, said device including a hopper 10 communicating with the chamber 1 via a passage 11, Fig. 2, a non-return valve to close the passage upon back impact of an explosive wave from chamber 1, and a gas-permeable partition 18 within the hopper. The partition defines, with the hopper walls, an annular space 19 communicating with a source of compressed gas which prevents the material in the hopper becoming compacted. The valve comprises a resilient diaphragm 26 clamped between two body parts and having a hole 27. A projection 21 on the hopper bottom serves as a seat for closing the hole. The passage 11 leads to a flexible tube 29, the effective cross-section of which is controlled by means 30 - 32. Gas is also supplied to the hopper through a central permeable tube 20. The coating material is mixed at 9 with the explosive mixture, which passes through a nozzle 13, in the region of a Venturi 59. In a modification, Fig. 3 the chamber is formed by two telescopically interconnected parts 41, 42, the part 42 terminating in a nozzle 44. The chamber 1 is purged with neutral gas after the discharge.
Patent GB-931960-A (GB)
Title: A continuous process for closing thermoplastic containers with thermoplastic covers by heat-sealing, and apparatus therefor
IPC: B29C65/02
Filed: 1961-04-10
Abstract: 931,960. Seaming non-metallic sheet material. BEBO-PLASTIK G.m.b.H., and FARB-  WERKE  HOECHST A.G. April 10, 1961 [April 8, 1960; May 19, 1960], No. 12917/61. Class 42 (1). [Also in Groups XVII and XXX] Thermoplastic covers are welded to the rims of thermoplastic containers 3 supported in plates 7 of a conveyer 11 by a continuous moving metal member 1, against which the containers and covers are resiliently pressed, which is first heated at 4 to perform the welding and then cooled at 5 to set the weld. In Figs. 1 and 3 the member 1 is a metal-band moving at the same speed as the conveyer. The upper run of a chain conveyer 11, carrying thesupportplates 7, passes over resiliently mounted fibre rails 8 which force the plates 7 towards the band. In a modification, Fig. 4, the band 1 is replaced by a conveyer 14 carrying metal welding rings 15 which are heated by a heater 4 beneath the upper run of the conveyer and cooled by a cooler 5 above the lower run, the welding taking place in the short interval before the rings 14 on the lower run pass beneath the cooler 4. The heaters are heated electrically.
Patent GB-890148-A (GB)
Title: Improvements in or relating to the production of tetracyclines
IPC: C12R1/59
Filed: 1960-04-12
Abstract: A process for the synergistic cosynthetic production of a tetracycline antibiotic comprises cultivating at least two microorganisms of the genus Streptomyces in an aqueous nutrient medium containing assimilable sources of carbohydrate, nitrogen and inorganic salts under submerged aerobic conditions, the microorganisms and conditions of fermentation being such that they synergistically produce a desired tetracycline antibiotic in a quantity greater than either will produce alone.  Examples describe the production of tetracycline, chloretracycline, bromtetracycline, oxytetracycline, 6-demethyltetracycline and 7-chloro-6-demethyltetracycline by the use of two strains selected from strains of S. aureofaciens, S. viridifaciens, S. hygroscopicus, S. rimosis, S. albus and S. platensis. Specifications 690,381, 775,115 and 855,169 are referred to.
Patent GB-316911-A (GB)
Title: Improvements in and relating to life-saving devices for submersible vessels
IPC: B63G8/40
Filed: 1928-05-03
Abstract: 316,911. Smithstone, G., and Smith, J. T. May 3, 1928. Buoyant life-saving chambers. - An escape apparatus for sunken vessels comprises a sealed container, capable of containing one or more persons, and of being passed out of the hull of the vessel by means of a sliding casing, whereafter it rises to the surface. A casing E is built inside the hull of a submarine. In it is a sliding casing C, with a flange c which seats on the flange e and closes the outer end of the casing E. One or more of the crew enter the buoy-like container B by means of an opening closed by the hatch e<2> and manhole cover e<3>, and the container is closed by a lid b. The hatch e<2> and cover e<3> are. them replaced, and the parts B, C with the piston D, are pushed outwards by the screws c<1>, d<1>. The part B then rises to the surface. The part C is then drawn in, the approach to the piston D expelling the water between them; the part D is then drawn in, and another container B is put into position. The last man to escape operates the apparatus by means of a key b'. the shaft F, and the gearing f<2>, c<7> &c.
Patent GB-789325-A (GB)
Title: Process for producing cellulose pulp from angiosperms and gymnosperms
IPC: D21C3/24
Filed: 1955-05-05
Abstract: Cellulose pulps are produced from the lignocellulose of angiosperms or gymnosperms, particularly from cereal straws, by treating the ligno-cellulose with black liquor resulting from the deincrusting treatment of a previous batch of the ligno-cellulose with an aqueous solution of caustic soda, to which liquor has been added, at not over 100 DEG  C., diluted sulphuric acid, e.g. of 53 DEG  B<\>e, the mixture being then diluted with water, the proportion of acid added being such that the weight ratio of anhydrous acid to the total (free and combined) alkali in the black liquor (expressed as NaOH) is between 1.65 and 4.9 and preferably between 2 and 3.  The treated ligno-cellulose is then subjected to a deincrusting treatment by means of an aqueous solution of caustic soda and, prior to such treatment, may be washed with water.  The proportion of sulphuric acid used (based on dry ligno-cellulose) is preferably 1-3 per cent in the production of paper pulps and may be 5-6 per cent in the production of high-grade cellulose pulps.  The proportion of diluted black liquor-sulphuric acid mixture used may be 4-6 cubic metres per ton of ligno-cellulose (dry basis) to be treated.  In an example, 100 kg. of dry straw are treated for 3-4 hours at 90-100 DEG  C. or for 2-3 hours at 125 DEG  C. with 40 litres of black liquor obtained from the treatment of a previous batch of straw, which black liquor contains 20 grams per litre of total alkali (expressed as NaOH) and to which has been added an aqueous solution containing 2 kg. of sulphuric acid, followed by 400 litres of water.  The treated straw is then washed with hot water until neutral and finally cooked with a solution of 9 kg. of caustic soda in 400 litres of water for 6-7 hours at 90-100 DEG  C., or for 3-4 hours at 125 DEG  C., or for 2-3 hours at 150-170 DEG  C.
Patent GB-131326-A (GB)
IPC: B64D37/06
Abstract: 131,326. Cleghorn, C. A., and Looman, W. M. April 29, 1918. Tanks.-Punctureclosing walls of fluid containers are composed of layers of rubber and thin sheets of cork with or without one or m o r e layers of Turkish birdlime. In the example shown, layers A of cork, B of canvas, C of rubber, and D of plywood are wrapped round a mandrel, and the ends are closed by disks composed of similar layers.
Patent GB-107127-A (GB)
Title: Improvements in Coin Freed Amusement Apparatus.
Inventor: JOFEH JOHN
IPC: G07F17/04
Filed: 1916-09-15
Abstract: 107,127. Jofeh, J. Sept. 15, 1916. Strength-testing apparatus.-A punch ball 1 is adapted to be freed for a predetermined period by the insertion of a coin so that it can be punched repeatedly, the force of the blows being indicated cumulatively by a pointer 45. The ball 1 is flexibly connected to the upturned end of a spindle 3, and is normally retained in the inoperative position, shown in Fig. 3, by the engagement of spring-controlled catches 4 with an arm 12 on a disk 14 mounted on the spindle. The catches 4 are pivoted to a lever 6, which is connected by a rod 9 to a timing dash-pot 10. After inserting a coin, the player rotates a shaft 24; a lever 23 on the shaft rocks the coin shoot 20 which is secured to a lever 26, thereby raising the rod 9 and lever 6 and lifting the catches 4 clear of the arm 12, permitting the ball to be moved down into the operative position. The lever 6 and catches 4 descend slowly under the action of the dash-pot, and at the end of the predetermined period, again lock the ball in the inoperative position; a pointer 79 serves to indicate the position of the lever 6. When the ball is struck, the spindle 3 is rotated, and an eccentric 41 operates an air-pump or ellows 42 forcing air into a cylinder 44, the piston of which is connected through links 46, 47 to the pointer 45. A spring-controlled pawl 55 is dis. engaged from a rack 59 on the piston-rod 48, to permit the pointer to return to zero, by a rod 54 connected to the lever 23. To prevent fraudulent operation, the ball 1 and disk 14 are locked in the inoperative position, until the shaft 24 and lever 23 return to the normal position, by means of a lever 61, which is moved into engagement with a pin 60 on the disk by a dog 64 on the rod 9, the lever 61 being retained in this position by a spring-controlled bell-crank 69; the lever 61 and bell-crank 69 are connected to the lever 23 by rods 71, 72 respectively. Coin action. mechanical connexion.-The coin 31 is supported in a shoot 20 by a pin 21 projecting from the lever 23, and, when the shaft 24 is rotated, is engaged by a second pin 30; when the handle is released, the lever 23 returns under the action of a spring 34, withdrawing the pin 21 and permitting the coin to pass down a shoot 38 to a supporting pin 39. A pivoted lever 40, however, deflects the coin into a shoot 78 leading to the money box if a prior coin is present in the shoot 38. Returning coin.-If the force of the blows is sufficient, a projection 49 on the piston-rod 48 engages a spring-controlled pawl 50 on a lever 51, and, through a link 52 and bell-crank 39<a>, withdraws the pin 39, permitting the return of the coin.
Patent GB-579704-A (GB)
Title: Improvements in or relating to scraper or process boards for use in printing or other reproducing processes
IPC: G03F1/00
Filed: 1944-07-10
Abstract: 579,704. Printing-surfaces. DICK. SON, S. D. July 10, 1944, No. 13188. [Class 100 (ii)] [Also in Groups XV and XX] A scraper or process board which can be engraved by an artist to form a picture or can be used for the production by moulding of a printing-surface, or for the production photomechanically of printing-surfaces, is formed of a paste-board, pulp-board, or metal base 10 coated with a comparatively thick layer of china clay 11 mixed with a bonding agent in such proportions and so consolidated by pressure that the resulting surface is non- permeable to ink and is capable of being engraved mechanically. The layer 11 may be grained as at 12 and coated with a dye 13 or with a casein ink of a thickness which enables the china clay surface to be exposed at 14 by the engraving operation. The china clay is applied in colloidal form by use of a binding agent such as gelatine or glue with which is incorporated a fungicide such as sodium orthophenylphenate, and the mixture is applied by a spray gun charged with a negative static electrical charge to ensure an even dispersal. Sodium silicate may be added as a dispersing agent. The solution is sprayed on by guns reciprocating transversely of the base, and the coating is allowed to set under atmospheric conditions for 14-15 hours, and the dye is then sprayed on. The surface may be smoothed by polished metal rollers on plates coated with nickel or stainless steel, or may be grained by embossing rollers.
Patent GB-103089-A (GB)
Title: Improvements in and relating to Drop Hammers or Stamps for Marking, Piercing, or Forming Pens, Buttons, and like Metal Small-wares.
Inventor: MITCHELL WILLIAM BRUCE
IPC: B21J7/36
Filed: 1916-06-10
Abstract: 103,089. Mitchell, W. B. June 10, 1916. Power hammers.-A recussion blow in drophammers and stamps, such as are described in Specification 17566/15, is prevented by a rebound catch f. This is normally held in the position shown, against the action of a spring, by the spring pawl h, which is tripped when the blow is struck, by a pin k, and the catch f engages the adjustable stop g on the rebound. When the tup a is again raised, the catch t is reset by engaging an adjustable plate m.
Patent GB-458225-A (GB)
Title: Improvements in or relating to multiplex transmission systems
IPC: C21D9/00
Filed: 1936-05-11
Abstract: 458,225. Multiplex systems. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. May 11, 1936, No. 13284. Convention date, May 10, 1935. Drawings to Specification. [Class 40 (iv)] In a multiplex system, all the channels (n) in one direction are provided by a single twowire circuit bearing a corresponding number of carrier frequencies all above a certain limit, whilst the channels in the other direction are provided by a plurality (m) of two-wire circuits in which the carriers are below this limit. Preferably, n/m is integral, with each of the plurality of circuits providing n/m channels of which all but one are carrier channels of different frequencies. The circuits may be such that the attenuations of the highest frequencies for both directions are substantially the same so that the repeater stations may correspond. The single circuit for the one direction may be a twin wire or a concentric conductor arranged at the centre of the cable with the circuits for the other direction surrounding it. The single circuit may also transmit further independent signals, e.g. for television, and the cable may also contain other circuits. Specification 436,870 is referred to.
Patent GB-132887-A (GB)
IPC: A43D21/18
Abstract: 132,887. British United Shoe Machinery Co., (United Shoe Machinery Corporation). Sept. 26, 1918. Lasting and pulling-over.-In a lasting-machine of the type. in which the same power-operated lasting-means act successively at different points around the shoe bottom, and a plurality of the same power-operated lasting actions occur between successive fastening insertions, wiping- means reciprocate at a high speed, e.g. 2000 times a minute, and co-operate with gripping-members during the latter part of each stroke. As shown, a shoe is held against a guide 118 and either a roller 123 or a flat-ended work-rest, the latter being positioned in place of the roller by releasing a locking-bolt 136 bv a handle 137 and turning the arm carrying the roller through 90 degrees. A rapidly reciprocated shaft 26 carries wipers 36, 37 on either side of a tack nozzle 39, and also vipers 42, 43 having slots engaging fixed pins 48, 49; the latter wipers work upper material transversely into the path of the central wipers. A spring-pressed gripping-member 60 pivoted at 61 co-operates with each of the wiper members 36. 37 as they advance, the upper being held between the wiping and gripping members. When the operator depresses a pedal, a, cam shaft 6 is clutched to a rotating pulley 24, a presser 38 is moved forward, a gripper 115 moved back, and a lever 13 allowed to depress a driver 9 to drive a tack. The lever 13 is depressed by an adjustable spring 17. Cam mechanism is provided for holding out of action the gripper 60 on the trailing side of the tack nozzle. This mechanism is automatically operated from the shaft 6 to put that gripper 60 which is in use out of action when the number of tacks sufficient for one side of the shoe have been driven. To this end, each of the two grippers 60 has a holding-out bar 68 with a roll 105 co-operating with a cam-disk 78 to which is secured a ratchet-wheel 76 turned by two pawls 87, 97. The ratchet-wheels have long and short teeth, the later of which cannot be reached by the pawl 97. This pawl is oscillated from the cam shaft 6 and turns the cam-disk 78 until' the short teeth are reached, at which point the gripper concerned has been placed out of action. The second pawl 87 for each gripper engages both long and short teeth, and is operated by a pedal when it is desired to bring the gripper again into action.
Patent GB-866141-A (GB)
Title: A novel system of numerical representation
IPC: G09B23/24
Filed: 1956-05-01
Abstract: 866,141. Educational appliances. SMITH, I. M. Aug. 1, 1957 [May 1, 1956], No. 13311/56. Drawings to Specification. Class 146(2). Educational apparatus comprises components representing specific numerical values r being differently coloured in such a way that components representing numbers r 1 , r 2  defined by r 2  = a<SP>m</SP> Î r 1  (where a is an integer greater than one, and m is any integer other than zero) have the same hue but differ in being in lighter or darker shades. For teaching arithmetic a series of rods of 1 cm. square cross-section increasing in length by steps of 1 cm. are provided to represent numbers and are coloured between values r 1  r 2  with spectral colours of successively increasing or decreasing wavelength. Balls to represent atoms of various molecules in models thereof can be coloured according to their appropriate group in the periodic table the said groups being allotted appropriate numbers to provide a logical colouring arrangement.
Patent GB-490260-A (GB)
Title: Process and apparatus for mass production, especially of semi-manufactures, by centrifugal metal casting
IPC: B22D13/06
Filed: 1937-05-10
Abstract: 490,260. Casting-machines. SCHOELLERBLECKMANN STAHLWERKE AKT.-GES. May 10, 1937, No. 13319. Convention date, May 20, 1936. Drawings to Specification. [Class 83 (i)] In the centrifugal casting of rods, ingots, or other articles by means of a number of radial and downwardly inclined moulds revolving around a vertical axis, the metal is caused to enter each of the moulds, which are all in communication with each other, simultaneously in a direction opposite to that of the centrifugal force and to rise therein and fill them in this direction. The casting- machine described in Specification 490,275 may be used for this purpose. The Specification as open to inspection under Sect. 91 comprises also the aggregation of machines described in Specification 490,275, and the subject-matter included in Specifications 490,276 and 490,277. This subjectmatter does not appear in the Specification as accepted.