baber/WOPTO huggingface dataset:
Patent GB-338183-A (GB)
Title: Improvements relating to internal combustion engines, and valve mechanism therefor
IPC: F01L1/42
Filed: 1929-08-08
Abstract: 338,183. Noble, W. Aug. 8, 1929. Force-feed lubricating; filtering lubricant.-In a radial-cylinder internal-combustion engine in which the valves are actuated by hydraulic valve gears supplied from the lubricating-system, leakage of oil past the valve stems 83, Fig. 15, into the spring casings 92 is removed through pipes 106 leading to a vacuum chamber 7, and the oil for the valve gears and the lubricating-system is drawn by a pump 30 from a tank 23 through a centrifuge 25, which separates impurities and air, and then passes through a valve 31 to a manifold 32 for the valve-gear cylinders 17. Excess oil from this manifold passes through a relief valve 33, from the bottom of which it returns to the vacuum chamber 7. A pipe 34 conducts oil to a thrust bearing 36 on the crank shaft, from which it escapes to the crank case 1 and flows through an opening 38 to a second centrifuge 41 arranged in connection with a pump 43, which returns the filtered oil through passages 44, 45 to the tank 23. A vacuum pump 48 is also provided to maintain a vacuum in the chamber 7, and in another chamber 47 at the end of the crank shaft. The rear engine bearing 8 is lubricated through a pipe 69 and passage 70, the oil passing also through a chamber 72 and passages 74, 76 to the crank pin.
Patent GB-277676-A (GB)
Title: An improved hydraulic or pneumatic coupling device for the transmission of power
IPC: F16H39/04
Filed: 1927-09-15
Abstract: 277,676. Electro-Transmission. Sept. 15, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Clutches and speed-varying mechanism. - A pneumatic or hydraulic coupling comprises a pump and motor of the piston or vane type, one element of the pump being mechanically connected with one of the motor. In the form shown diagrammatically, employing a pump and motor of the revolving cylinder type, the cylinder blocks are connected by a belt 65, and the pistons are connected to cranks on the driving and driven shafts 1, 21. Pump suction and delivery valves 12, 15 are connected to conduits 19, 18 leading through a slide valve 38, rotary distributing valves 34<a>, 35, and conduits 32 - - 34 to the motor cylinders. The valve 38 in the mid-position short-circuits the pump, and in one end position reverses the flow through the motor; in the letter position, a brake shoe 50 stops the rotation of the cylinders. Means are provided for controlling the delivery valves 15 so that they may remain closed or open to a variable extent. When air is employed as the operating medium, the conduit 19 may be dispensed with and a motor may exhaust to the atmosphere. In modified forms, the cylinders may be connected to the driving and driven shafts, the crankshafts being then mechanically connected, or one crankshaft may be connected to the driving or driven shaft, its set of cylinders to the other crankshaft, and the other set of cylinders to the driven or driving shaft. Specification 268,304, [Class 38 (iv), Electric supply and transmission systems &c.], is referred to.
Patent GB-517752-A (GB)
Title: Improvements in reconditioning percussive drill bits
IPC: B21K5/06
Filed: 1938-08-18
Abstract: 517,752. Sharpening rock drills. COOK, C. E. Aug. 18, 1938, No. 24307. Convention date, Sept. 3, 1937. [Class 83 (iv)] Forging-dies.-Detachable drill bits are reconditioned in a two-part die 1, 3 with the aid of a dolly 9. The part 1 of the die is mounted on the reciprocable ram 4 of the usual drill sharpener employed in mines, and the other part 3 on the lower die block-2 of the sharpener. Recesses 7, 8, forming together a dovetail recess, may be provided in the dies for housing a dovetail projection on the drill. Specification 505,879 is referred to.
Patent GB-851109-A (GB)
Title: High-frequency ovens
Inventor: BRITTON PETER STANLEY
IPC: H05B6/78
Filed: 1959-07-15
Abstract: 851,109. Dielectric heating. MULLARD Ltd. July 15, 1959, No. 24333/59. Class 39(3). A high-frequency oven has an entry port 3, an exit port 4, a channel 5 leading to the port 3, a channel leading from the exit port 4, both channels having the same cross-section as their respective ports, a moving conveyer 6 passing via the channels and ports through the oven, and a plurality of sealing members 7 spaced along the conveyer and of such shape as to form in conjunction with the interior of each of the channels a seal preventing egress of radiofrequency energy from the oven. The members 7 also avoid the establishment of stationary wave patterns within the oven.
Patent GB-877863-A (GB)
Title: Process for the production of amine boranes
IPC: C07F5/00
Filed: 1959-07-15
Abstract: Amine boranes of the general formula R3N.BH3, wherein R3N represents a primary, secondary or tertiary aliphatic, cyclo-aliphatic or aromatic amine or diamine or a heterocyclic nitrogen base, are prepared by reacting such an amine R3N with at least one alkali metal or alkaline earth metal borohydride and at least one boron trihalide or addition compound of a boron trihalide and an aliphatic or cycloaliphatic ether.  Amines specified are methylamine, dimethylamine, trimethylamine, diethylamine, triethylamine, butylamine, dibutylamine, n-tributylamine, ethylene diamine, N,N,N1N1-tetramethylethylene diamine, tetramethylenediamine, dimethylcyclohexylamine, aniline, N-methylaniline, N,N-dimethylaniline, piperidine or pyridine. Boron trifluoride, trichloride, tribromide or tri-iodide may be used, free or as an etherate, e.g. the dimethyl etherate, diethyl etherate or tetrahydrofuranate.  Solvents include diethyl ether, tetrahydrofuran or diethylene glycol dimethyl ether.
Patent GB-1439181-A (GB)
Title: Process for moulding shell mould
IPC: B22C3/00
Filed: 1973-05-22
Abstract: 1439181 Making shell moulds KOMATSU SEISAKUSHO KK 22 May 1973 [22 May 1972] 24389/73 Heading B3F A method of making a shell mould comprises applying a facing agent containing a powdered refractory and a binder comprising novolaktype phenol resin admixed with vinyl acetate resin to the surface of a metallic pattern (1) heated to an elevated temperature to form a film (3) of said facing agent, applying a shell mould sand on to the film prior to said film being cured completely, removing excess sand and calcining the mould thus formed. The powdered refractory may consist of alumina, zircon, silica or magnesia and preferably has a particle size in the range 350 to 450 mesh Tyler Standard Sieve. Iron sand may be mixed with the powdered refractory. Copolymers of vinyl acetate may be used. The metallic pattern (1) is placed on a tank (4) containing the facing agent (2) and the latter blown on to the surface of the pattern to form a film (3). The pattern is now turned over and the tank (4) replaced by a frame (6) into which shell sand is charged. After a given time, the frame (6) and pattern (1) are inverted so that any sand which has not adhered to the film falls away and the thus formed mould (8) together with the pattern (1) calcined at a temperature between 200‹ and 300‹ C. prior to separating the mould from the pattern.
Patent GB-1284353-A (GB)
Title: Improved seat
Inventor: LOHR THOMAS EDWARD
IPC: A47C7/18
Filed: 1970-05-20
Abstract: 1284353 Seats ALLIED CHEMICAL CORP 20 May 1970 [18 July 1969] 24501/70 Heading A4M A vehicle seat comprises a plastics foam slab 4 with a cavity which receives and supports a plastics foam cushion 6 which is softer than slab 4, the bottom of the cushion 6 having frusto-conical projections 12 which engage in complementary recesses 14 in the slab 4, and the cushion 6 being detachably secured to the slab 4 by adhesive 10. The seat includes a frame 50 to which the slab 4 is secured by engagement of rods 40 embedded in the slab 4 with spring clips 44 carried by the frame 50. The cushion 6 and slab 4 have integral impervious skins 16, 18.
Patent GB-1358238-A (GB)
Title: Control knob for programmer-timers particularly for washing machines  and dishwashers
IPC: H01H3/20
Filed: 1972-05-24
Abstract: 1358238 Ratchet clutches INDUSTRIE A ZANUSSI SpA 24 May 1972 [28 May 1971] 24506/72 Heading F2C A control knob 7 (for programme-timers of washing machines) comprises pawl teeth 6 engageable by a pawl 5 when the knob 7 is in the position shown, the knob being rotatable on (but axially fixed relative to) a shaft 3 on which an index member 4 is splined, the shaft 3 being axially movable relative to the member 4. In the position shown rotation of the knob in one direction only, rotates shaft 3 and member 4 (relative to its support 2), movement of knob 7 to the left (along with shaft 3) disengaging the one-way clutch 5, 6 for both directions of rotation. A spring rod 9 (which may be of plastics material) biases the pawl 5 towards the knob 7.
Patent GB-892631-A (GB)
Title: Process for the preparation of aliphatic peracids
IPC: C07C51/235
Filed: 1958-07-30
Abstract: A process for the production of an aliphatic peracid comprises subjecting an aliphatic aldehyde to vapour phase reaction with oxygen in a reactor the surfaces of whose walls are formed of a material which, when subjected to the test hereinafter described, does not cause a reduction of the peracid to normal acid mole ratio in the products to a value which is less than 50% of the ratio obtained under standard defined conditions.  The test comprises oxidising the aldehyde in an aluminium reactor of defined construction operated under such conditions as to give a peracid to normal acid mole ratio of at least 10 : 1, but in the presence in the reactor of thin strips of the material being tested in such amount as to double the surface/volume ratio.  When a material for coating the reactor surface is being tested it is coated on to aluminium strips.  The preferred reactor surface is aluminium, but other suitable ones include polyethylene or various silicones coated on glass. Alternatively, an inert liquid boiling above the reaction temperature may be introduced into the reactor so as to form a coating on the walls; suitable liquids include perfluorinated polyvinyl chloride or trifluoromonochloroethylene polymers.  Reaction temperatures of about 80 DEG C.-200 DEG C. are mentioned for the oxidation of acetaldehyde to peracetic acid. The reaction is promoted by back mixing, in the reactor, of the products of reaction with the fresh feed.  The oxygen may be pure or diluted.  At least 5 mole per cent. of oxygen is preferably used in the feed.  The products may be recovered by introducing the reaction products into a cooled column in which they are mixed with the vapour of a solvent for peracetic acid and a solution of peracetic acid in said solvent is withdrawn from the base of the column, while acetaldehyde is removed from a higher point. Specifications 547,333 and 892,632 are referred to.
Patent GB-695769-A (GB)
Title: Process for the manufacture of d-threo-1-p-nitrophenyl-2-dichloroacetylamino-1,3-propandiol
Filed: 1951-10-22
Abstract: Chloramphenicol is manufactured by treating alkyl esters of L-threo-b -p-nitrophenylserine with dichloracetic acid chloride or anhydride followed by selective reduction at the carbalkoxy group.  In examples, the ethyl ester of L-threo-b -p-nitrophenylserine is treated with dichloracetyl chloride in methylene chloride in the presence or absence of dimethylaniline, and the N-dichloracetyl derivative is reduced with lithium borohydride.  L - Threo - b  - p - nitrophenylserine alkyl esters may be prepared by acetylating DL-threo-b -phenylserine at the amino group, forming the quinine salt of the product and fractionally crystallizing it from water, treating the less-soluble fraction with alkali to liberate L-threo-N - acetyl - b  - phenylserine, deacetylating and esterifying this product, diacylating the resulting L-threo-b -phenylserine alkyl ester (e.g. with acetyl chloride or acetic anhydride), nitrating the diacyl derivative and hydrolysing and reesterifying the nitrated product.
Patent GB-290092-A (GB)
Title: Improved catskin garment
IPC: A41B9/00
Filed: 1927-09-19
Abstract: 290,092. Probst, W. Sept. 19, 1927. Fur garments; linings; materials for wearing-apparel.- Garments are provided with removable catskin 3, consisting of two or more pieces of which the fur hairs in each are directed oppositely to the other. The pieces are attached to the inside of flexible tricot material forming the garment.
Patent GB-176751-A (GB)
Title: Suction cleaning device for the cards of textile machines
IPC: D01G15/80
Filed: 1921-09-16
Abstract: 176,751. Maschinenfabrik M. Jungbauer. Feb. 26, 1921, [Convention date]. No Patent granted (Sealing fee not paid). Carding-engines.-Traversing means for a suction cleaning nozzle comprises a slotted tube adjacent to the drum and a single-threaded screw within the tube. A guide-finger on the nozzle is adapted to slide upon a push-rod between adjustable stops to set the nozzle at rest at any point. In addition, means are provided for reversing the rotation of the screw at the end of each stroke. Means are provided for enabling the nozzle to operate during both its forward and return strokes, and varying the length of stroke. As shown, the nozzle d, Fig. 3, is secured to a sleeve c mounted upon the tube a and engaging the screw b, which is actuated through gearing from a pulley g. By actuating the hand-wheel n, Fig. 2, the gear-wheels f, i are engaged, and the nozzle travels from the right until a finger r on the sleeve engages an adjustable stop p on the rod o and disengages the wheels. The return stroke of the nozzle is made by turning the hand-wheel so as to engage the gear-wheels h, l.
Patent GB-640229-A (GB)
Title: Improvements in or relating to throttle-control pedals for motor vehicles
Inventor: HARDY FREDERICK JAMES
IPC: G05G5/03
Filed: 1946-08-19
Abstract: 640,229. Controlling change-speed gears. ROLLS-ROYCE, Ltd. Aug. 19, 1946, No. 24684. [Class 80(ii)] [Also in Group XXXI] Near or pivoted to the heel-end of a vehicle accelerator-pedal 16 is a spring- loaded valve- or switch-plunger 12, which can be independently operated by the heel of the operator's foot whilst in the normal pedal-operating position, and without affecting the position of the throttle-control lever 19, which bears at one end 18 on the pedal and is pivoted beyond the toe of the operator, the switch-plunger spring 13 being strong enough to hold the pedalfulcrum stationary for normal throttleoperating movements. The switch-plunger 12 may effect a clutchless gear-shift, with momentary ignition disablement or throttle-closure, down from direct-drive to third-speed, or from third to second, in which latter case an additional switchplunger 21, may by toe-kickdown of the pedal, effect the direct-third shift. The control may be used with the gear described in Specification 640,228.
Patent GB-787140-A (GB)
Title: Improvements in butterfly valves
Inventor: KESSLER JOSEPH STEVEN
IPC: F16K1/22
Filed: 1955-08-29
Abstract: 787,140. Valves. LADISH CO. Aug. 29, 1955, No. 24744/55. Class 135. Within the valve body 10, Fig. 2, is an unbalanced elliptical closure member 13, Fig. 5, which is of parallelogram section (Fig. 2) in a plane through its major axis and is of rectangular section (Fig. 3) in a plane through its minor axis. A periphery 14, Fig. 3, of the member 13, which lies in a plane whose axis passes through the centre of the member and is in a plane normal to this axis, the latter being disposed at an angle to the closure member 13, is formed with an annular groove 15 that accommodates a resilient sealing ring 16 of circular section. A boss 18, Figs. 3 and 5, on the member 13 consists of a pair of converging side walls 19, normal to a face 17 of the member 13, and a wall 20 spaced from and parallel to this face, the boss being parallel with the minor axis and offset therefrom. The body 10, Fig. 3, is provided with an offset bearing 12 in which a stem 21 is rotatably mounted, the inner end of the latter being suitably shaped to slide into the boss 18; the stem 21 incorporates a sealing ring 26 and a U-shaped clip 29 to prevent axial movement of the stem. The valve is dismantled by removing the clip 29 and withdrawing the stem 21 from the boss 18 and bearing 12 whereupon the closure member 13 can be lifted from the body 10.
Patent GB-476797-A (GB)
Title: Method of preparing colloidal suspensions of graphite
IPC: C10M169/00
Filed: 1937-02-07
Abstract: Stable aqueous suspensions of graphite are obtained by adding to a mixture of finely ground graphite and the medium a protective colloid consisting of a mixture of gum arabic and gum tragacanth. Preferably the graphite is ground in the presence of the gum arabic, the whole being mixed with a gel of gum tragacanth.  The process is carried out in a colloid mill of the turbo-grinder type cooled to maintain a temperature below 80 DEG  C.  A solution of thymol in glycol may be added as a preservative.
Patent GB-1509046-A (GB)
Title: Method and apparatus for continuously sterilizing flexible packages
IPC: A23L3/04
Filed: 1975-06-10
Abstract: 1509046 Sterilising apparatus TOYO SEIKAN KAISHA Ltd 10 June 1975 [18 June 1974 22 April 1975 (3)] 24887/75 Heading A2D An apparatus for continuously sterilising substances contained in discrete packages comprises a sealed chamber, a vessel within said chamber for containing a heating medium, a space within said chamber for containing cooling water, an endless conveyor disposed within said chamber and arranged to be driven so as to pass successively through said vessel and said space, said conveyer including a plurality of carrier receivers spaced apart along its length, a rotary valve inlet device through which a rotary carrier of packages may enter the chamber to be received by a carrier receiver whilst substantially preventing leakage of heating medium or cooling water and a rotary valve outlet device through which a said carrier of packages may leave the chamber from a carrier receiver whilst substantially preventing leakage of heating medium or cooling water. An apparatus of the above type is shown in Fig. 2 and comprises sealed chamber 21 provided with a heating medium vessel 22 which may accommodate steam, air and steam or hot water. A cooling section 23 is provided in a lower portion of the chamber. An endless conveyor chain is installed in the chamber and this chain is provided with a series of container receivers 29. The chamber is provided with inlet and outlet devices 30 or 31 which permit the access or exit of rotary carriers 37 which contain a plurality of packages to or from the container receivers. Both inlet and outlet devices are provided with sealing systems 32 and 33, which systems in the form of rotarytype valves 35 prevent the loss of heating medium and cooling water from the apparatus. The sealing systems are provided with inlet passages 47a and 47b (Fig. 5, not shown) for admitting pressurized fluid to a gap 46 to prevent leakage of fluid from the container.
Patent GB-134206-A (GB)
Title: Improvements in or relating to Safety Locks.
Inventor: HUSNY KEMAL
IPC: E05B63/04
Filed: 1919-10-11
Abstract: 134,206. Husny, K.. Oct. 19, 1918, [Convention date]. Reversible latches; latches, sliding.-The bolt of a night-latch is made reversible, the shank 2 fitting into a bore in the nose portion 1 and being secured therein by a claw 8 which enters a recess 6 in the nose and engages a groove 5 in the shank. The claw 8 is a part of the rod 9 by means of which the key actuates the bolt. The latch handle 4 is curved back on itself, the end 11 taking into a recess 12 in the casing. The latch can be held in the withdrawn position by turning the handle. Grooves are provided on the casing to guide the end 11 of the handle into the recess 12. The invention may be applied to the locks described in Specification 138,065.
Patent GB-438818-A (GB)
Title: An advertising device for draught excluders for doors
IPC: G09F19/10
Filed: 1934-08-30
Abstract: 438,818. Displaying. PROCTER, T., 49, Lynthorpe Road, Blackburn, Lancashire. Aug. 30, 1934, No. 24949. [Class 3 (i)] [See also Group XXV] A display device for demonstrating the action of an automatically rising draught excluder for doors comprises a small scale model of a door A and draught excluder E, with a motor for continuously opening and shutting the door. The door is carried in a frame B mounted on a box C containing the motor F and operating gear. The motor rotates slowly by worm gearing a horizontal crank j<1> carrying a roller J engaging a slot in an L-shaped member H fixed to the door near its hinge axis and extending down into the box. In a modification the crank j<1> carries two rollers which in succession bear against the member H, which in this case is not slotted and is returned in one direction by a spring. The top D of the box C is removable and is covered by a piece of carpet, &c. G. A variable resistance K may control the motor speed, and a fan L keeps the interior cool, air ports being provided in the box sides.
Patent GB-1043658-A (GB)
Title: Improvements in or relating to dental chairs
Inventor: MAURICE LORY
IPC: A61G15/02
Filed: 1965-06-14
Abstract: 1,043,658. Dental chairs. ETABLISSEMENTS E. QUETIN. June 14, 1965 [June 17, 1964], No. 24973/65. Heading A4J. A power operated dental chair has a hydraulic jack 5 located in a vertical plane extending longitudinally and centrally of the chair. A casing 4 containing a power unit is situated beneath and is pivotally attached to a seat 8 and is displaced to one side of the plane of the jack. A parallel linkage consisting of rods 3d, 3g and a rod 2 is connected to a base 1a and carries the casing 4. The jack 5 is hingedly connected to rod 2 and to the casing 4 to raise and lower casing 4 and seat 8. Links 11 hingedly connect seat 8 to rods 3d, 3g so that as the seat is raised it will tilt rearwardly relative to casing 4. A back rest 15 and head rest 24 are caused to pivot about a horizontal axis, Fig. 3 (not shown) by means of a hydraulic jack 16 situated in an arm rest 19 of the chair. A further jack 22-22a is provided in the backrest to adjust the height of head rest 24 relative to back rest 15. Head rest 24 may be adjusted angularly on an arm 23, on which it is a friction fit, Fig. 6 (not shown). The outer casing 22 of the jack may be pivoted about a lever arm 18 to give a lateral inclination to the backrest. The backrest is also adjustable in depth relatively to head rest 24 by actuating a screw 31.
Patent GB-920241-A (GB)
Title: A process for the preparation of l-glutamic acid
IPC: C12P13/14
Filed: 1961-07-10
Abstract: L-Glutamic acid is prepared by cultivating a bacteria belonging to the genus Brevibacterium, the genus Corynebacterium, the genus Microbacterium or the genus Micrococcus in an aerobic culture medium containing at least one assimilable carbon compound, at least one assimilable nitrogen compound, at least essential inorganic ions and one or more of the compounds 7,8-diamino-pelargonic acid, 8-keto-7-amino-pelargonic acid, 7,8-diketo-pelargonic acid, 7-amino-8-hydroxy-pelargonic acid and salts of the above acids, e.g. the hydrochlorides, sulphates or ammonium salts of the above acids. Carbohydrates preferably provide the carbon source and urea and ammonia preferably provide the nitrogen source.  Thiamine is preferably also added to the culture medium.  Specified bacteria are Brevibacterium kawasakii, flavum, lactofermentum, roseum, immariophilium, saccharolyticum, aquapile and divaricatum. Specifications 873,448 and 876,943 are referred to.