baber/WOPTO huggingface dataset:
Patent GB-642619-A (GB)
Title: Process for the manufacture of pencil leads
IPC: C09D13/00
Filed: 1948-02-27
Abstract: 642,619. Pencils. KOH-I-NOOR PENCIL FACTORY L. & C. HARDTMUTH NATIONAL CORPORATION, and HRUBES, V. Feb. 27, 1948, No. 6110. Convention date, Dec. 18, 1947. [Class 146 (iii)] The process for treating the cores of pencil with a substance which coacts with the mixture of clay with graphite or lamp black to form a glass which absorbs light rays and so renders clear the lines produced by the pencil is modified by using as the substance salts of the rare earth metals such as neodymium didymium thorium, and lanthanium or alkaline earth compounds, or of heavy metals such as iron, zinc, or cobalt, which when heated liberate oxides capable of forming the glass gradually. The cores can be made from the following mixture, graphite 51.5 per cent. : clay 41.5 per cent. : lead antimonate 7 per cent. The lead antimonate preferably has an excess of PbO, and during the heat treatment liberates Sb 2 O 5 , and PbO. Salts containing two or more amphoteric oxides with complementary absorptive properties may be used.
Patent GB-1421526-A (GB)
Title: Penicillins and cephalosporins
IPC: A61P31/04
Filed: 1974-02-11
Abstract: 1421526 Penicillin and cephalosporin esters SOC FARMACEUTICI ITALIA SpA 11 Feb 1974 [14 Feb 1973] 06115/74 Heading C2C The invention comprises penam-3-carboxylic acids and ceph-3-em-4-carboxylic acids in which the carboxyl group is esterified with the alcohol HOCHRNR<SP>1</SP>COR<SP>2</SP>, where R and R<SP>1</SP> are each H or C 1-4  alkyl, and R<SP>2</SP> is H, up to C 10  alkyl or cycloalkyl, optionally substituted Ph or naphthyl, or pyrrolyl, thienyl, furyl or pyridyl. In examples, these compounds are prepared by reacting a salt of the appropriate acid with the chloride ClCHRNR<SP>1</SP>COR<SP>2</SP>. Details are also given for the preparation of the intermediates PhCONHCH 2 OH and PhCONHCH 2 Cl. Therapeutic compositions for oral or parenteral administration comprise the above penam- and cephem-derived esters, which in the Specification are tested against Staphylococcus aureus.
Patent GB-1456267-A (GB)
Title: Benzofuran derivatives and their use as optical brighteners
IPC: C09B57/00
Filed: 1974-02-11
Abstract: 1456267 Benzofuran derivatives and their use as optical brighteners HOECHST AG 11 Feb 1974 [9 Feb 1973] 06136/74 Heading C2C The invention comprises compounds of the general Formula I in which each of A and B, which may be identical or different, represents an aryl or partially hydrogenated mononuclear or polynuclear ring system; each of R<SP>01</SP> and R<SP>02</SP>, which may be identical or different, represents a hydrogen atom, a halogen atom, an alkyl group having up to 4 carbon atoms, a carboxy group, a sulpho group, a functionally modified carboxy or sulpho group, or a phenyl group that is either unsubstituted or substituted by one or more identical or different substituents selected from alkyl or alkoxy groups having up to 4 carbon atoms and halogen atoms; and D represents a divalent aliphatic, aryl or aromatic-heterocyclic or aryl-aliphatic radical conjugated with the rings to which it is attached. The compounds of the invention are used as optical brighteners. The benzofuran derivatives may be prepared by reacting a carboxylic acid derivative of the general formula  with a carboxylic acid derivative of the general formula in which formulae A, B, D, R<SP>01</SP> and R<SP>02</SP> are defined as above and one of the symbols Z<SP>1</SP> and Z<SP>2</SP> represents a halogen atom and the other symbol Z<SP>1</SP> or Z<SP>2</SP> represents the group -NH-NH 2 , in an inert organic diluent, optionally with the use of an acid acceptor, e.g. a tertiary amine at a temperature of 20 to 220 C. and preferably in a molar ratio of 1 : 1 to give a diacylhydrazide of the formula in which A, B, D, R<SP>01</SP> and R<SP>02</SP> are defined as above and then subsequently splitting off water to give the compound of general Formula I.
Patent GB-853267-A (GB)
Title: Endurance test machine incorporating a double eccentric type variable power transmission device
IPC: F16H21/20
Filed: 1957-02-23
Abstract: 853,267. Endurance testing machines. AVERYS Ltd., [formerly AVERY Ltd., W. & T.] (Schenck Maschinenfabrik G.m.b.H., C.). Feb. 23, 1957, No. 6162/57. Class 106 (2). [Also in Group XXIV] In a testing machine which applies repetitive stresses to a workpiece through a connecting rod 5 and a variable-throw crank the pin 4 of which is mounted on an eccentric 3 adjustable in a casing 2, 2e rotated by a pulley 1 about an axis 2c, the mutually engaging surfaces of the eccentric 3 and casing 2e are arranged to produce sufficient friction to balance the maximum force transmitted to the workpiece. This condition obtains if the radius of the eccentric 3 is equal to or greater than the maximum eccentricity multiplied by the inverse of the coefficient of friction between the surfaces. In a modification, Fig. 6, the required friction is obtained by a clamp ring 15 pressed upon the eccentric 3 by springs 17. The eccentric 3 and casing 2e may have engaging conical surfaces. The crank throw may be adjusted during the operation of the machine by a motor 11 within the rotating casing 2 turning the eccentric 3 through gearing 12, 13.
Patent GB-540146-A (GB)
Title: Improvements in and relating to measuring, registering and indicating devices
IPC: G06G1/02
Filed: 1940-04-05
Abstract: 540,146. Indicating apparatus. BOWEN, E. WINDSOR-. April 5, 1940, No. 6194. [Class 106 (iv)] [Also in Group XX] Scales and other indications on measuring, registering, calculating and indicating devices are formed by photographic means on an anodized coating on aluminium or an aluminium alloy impregnated with light-sensitive material. The finished scale &c. may be mounted, by wrapping or pressing, upon a metal, wood or other foundation. The photographic surface may be immersed in a solution of ammonium chloride and silver nitrate and toned with gold chloride, and the surface may be dyed and sealed by treatment in hot water. Specifications 407,830 and 418,498, [both in Group XX], are referred to. Reference has been directed by the Comptroller to Specifications 407,830 and 418,498, [both in Group XX].
Patent GB-445459-A (GB)
Title: Improvements in and relating to ship's lifeboats
IPC: B63B23/18
Filed: 1934-08-02
Abstract: 445,459. Boat raising and lowering gear. SCHAT, A. P., 66, Hendrik de Keijserstraat, Utrecht, Holland. Aug. 2, 1934, No. 6251/36. Convention date, Oct. 25, 1933. Divided out of 443,567. [Class 115] To relieve the falls 9 of the weight of the boat prior to lowering, a chain 10 is secured to the davit head and is detachably secured to an eye or hook 12 on the top of the lower pulley block 8 by means of the slip hook 11 which may be manually released irrespective of tension in the falls.
Patent GB-1453022-A (GB)
Title: Process for preparing yeast cells
IPC: C12N1/32
Filed: 1974-02-12
Abstract: 1453022 Butanol-assimilating yeasts TORAY INDUSTRIES INC 12 Feb 1974 [21 Feb 1973 11 April 1973] 06307/74 Heading C6F At least one normal or secondary butanolassimilating strain of Candida or Trichosporon yeast is grown in a medium containing normal or secondary butanol as the main carbon source, the produced cells being harvested. The butanol may be prepared by hydrating C 4  olefins obtained by cracking hydrocarbons.
Patent GB-102214-A (GB)
Title: Improvements in Telegraphic Transmission Devices.
Inventor: ANTONIO REMIGIO D
IPC: H04L15/16
Filed: 1916-05-03
Abstract: 102,214. Antonio, R. d'. May 3, 1916. Keyboard transmitters; transmitting systems and apparatus.-In a keyboard transmitter, each key is arranged to operate a contact brush and a type-bar, the brush moving over a line of code contacts mounted on a two-position frame. The contact brushes may be disconnected from the keys in order that the apparatus may operate only as a typewriter. The code signals comprise positive and negative impulses obtained by means of a clockwork-driven reversing-switch; while a change-over switch is provided for transferring the line from the transmitter to a receiver. In the arrangement shown in Fig. 1, each key-lever 2 is connected to a contact bush 15 and to a typebar 7 through levers 5, 6. Each brush 15 is arranged to pass over a line of long and short contacts mounted on one of the plane surfaces 11, 12 of a frame 9, which is adapted to be rotated, when necessary, about a spindle 10 by means of links 19, 20, upon the depression of a shift key I'. The brushes 15 are withdrawn from the surface 11 or 12 and restored to their normal positions by springs. The levers 6 are connected to the levers 16 by open slots and pins 55, and wnen it is desired to operate the type-bars 7 without operating the contact brushes 15, the rods 16 are slightly depressed and a lever 45 operated to disengage the pins 55 from the slots. The long and short intervals of current obtained by the passage of a brush 15 over its line of contacts periodically energizes a relay 24, Fig. 3, from a battery. The energization of the relay 24 breaks the circuit of a magnet 39 at a contact 26 and connects a battery 33 to the line 30 through a contact 27 and currentreverser 34. The current-reverser comprises a number of contact segments 35, 36 alternately connected to the opposite poles of the battery 33 and a pair of brushes 37, 38. The contact segments 35, 36 are mounted on a drum adapted to be rotated by a mechanical motor when the magnet 39 is de-energized, thereby sending code elements of opposite polarity to line. The line 31 is arranged to be alternatively connected to the transmitter or. to a receiver relay 42 by means of a change-over switch 28.
Patent GB-885347-A (GB)
Title: Improvements in or relating to control systems for internal combustion engines
IPC: F01L13/00
Filed: 1960-02-23
Abstract: 885,347. Control systems for diesel engines. MOTOREN - WERKE MANNHEIM A.G. Feb. 23, 1960 [Feb. 25, 1959], No. 6340/60. Class 7(5). In a control system for internal combustion engines wherein a cam-shaft 19, Fig. 1, is brought by means of a double-acting shifting cylinder 35 (not shown) into two end positions corresponding to the directions of rotation for "Ahead" and "Astern", the cam-shaft carrying with it a multiple cam 18 incorporating two reversing cams 18a, 18b which, on rotation of the multiple cam from the operating to the reversing position, open in each case an associated reversing valve 24,- 25, which supplies pressure medium, e.g. compressed air to the shifting cylinder for shifting the cam-shaft from the particular end position to the other end position, blocking cams 50, 51, Fig. 3, are associated with the multiple cam. The blocking cams are adapted to co-operate one with each of the two reversing valves 24, 25, each of the blocking cams respectively in one of the two end positions of the cam-shaft being nearest that reversing valve the opening of which would allow the cam-shaft to remain in the operative position, so that in the event of undesired shifting of the cam-shaft from the operative position, that reversing valve which admits pressure medium to the shifting cylinder to effect return of the shaft to the operative position will be opened. To reverse the engine, when it is rotating in the "Ahead" direction say, a push button 2c is pressed, a space 12 of an operating cylinder 8 receives compressed air from a high pressure line 29 via a high pressure valve 27, a pressure reducing valve 37 and a pipe line 36. A lever 16 attached to the multiple cam thereby moves into the Z position. The lever 16 may also be moved by hand. The cam 18b opens the reversing valve 25 which admits compressed air to an oil vessel 35b connected to the shifting cylinder, via pipe line 34. At the same time compressed air passes via double non- return valves 40, 39 to an operating cylinder 43, the piston 43a of which moves a regulating rod 45 connected to the fuel pump to the stop positions. In the meantime the cam-shaft 19 has moved axially so that it now abuts stop 54, Fig. 3, cam 18d opening a valve 26, and cam 18b moving from valve 25 which closes. Due to the opening of the valve 26, highpressure compressed air passes to a main starting valve 30 and opens it whereby the engine cylinders are supplied with compressed air. The push button 2c is released which allows chamber 12 to vent via the gap between the stem of push button 2c and its housing and the lever 16 returns to its central position closing valve 26, so the engine operates normally. When valve 25 closes chamber 43 is vented via the loosely fitting stem of valve 25 so that the rod 45 is left to the influence of a speed governor. Push button 1c is for reversing from the "Astern" direction of rotation and button 3c is for stopping.
Patent GB-623596-A (GB)
Title: Improvements in a window construction
IPC: B60J10/02
Filed: 1947-03-06
Abstract: 623,596. Vehicle window; glazing. FORD MOTOR CO., Ltd. March 6, 1947, No. 6357. Convention date, April 3, 1946. [Class 20 (iii) ] A vehicle window comprises a fixed glass 13 closing the opening in a body panel 11 and a resilient sealing strip 23 adjacent the edges of the glass with parts 25 which are distorted to receive the glass, parts 26, 31 which are distorted to receive the edges of the opening, and a flexible curved flange 31 adapted to engage at its outer tip 32 against the fabric 22 of the roof lining when this is inserted between the sealing strip and the edges of the opening so as to keep the fabric taut. The panel 11 is bent to form walls 14, 15 to which a window frame 16 is secured, and the fabric 22 is cemented to the parts 15, 16. The portion 26 of the sealing strip seats against the walls 14, 15 while the flange 31 engages the fabric, and the portion 33 is hinged about the neck 34 so that the glass may be inserted from the outside. The ribs 35, 36 improve the grip. A retaining strip 38 secured to the frame by screws 45 serves to compress the strip 23 and improve the seal, and a decorative moulding strip 46, preferably of chromium plated metal engages over the beaded edges 42, 44, to conceal the strip 38.
Patent GB-491516-A (GB)
Title: Improvements in or relating to the frames or beds of engines or machines
IPC: F16M1/00
Filed: 1937-03-03
Abstract: 491,516. Machine frames. BRUSH ELECTRICAL ENGINEERING CO., Ltd., SENIOR, H. V., and SENIOR, G. March 3, 1937, No. 6374. [Class 80 (iv)] [Also in Group XXVII] In engine or other machine frames of the kind described in Specification 414,271 the bearing cap is extended so as to occupy the whole of the space between the side walls W so that it is held rigidly against movement when the bar 18 is put under tension. The cap is made deeper and the faces 17 on the walls are correspondingly extended. Clearance holes 28 are provided for the studs 27.
Patent GB-272278-A (GB)
Title: Improvements in and relating to valves
IPC: F16K31/26
Filed: 1926-12-08
Abstract: 272,278. Perkins, W. Dec 8, 1926. Repairs, facilitating. - In ball and float valves having removable screwed seatings the valve casing b<1> is made integral with the screwed inlet connection, as shown, and direct access is obtained for removal of the seating a by removal of the valve plunger e. The seating has a screwed shank, a flange a<1>, and a squared portion a<2> for the tool, and the plunger may be arranged vertically, as shown, or horizontally.
Patent GB-103239-A (GB)
Title: Improvements in Dyeing Machines.
Inventor: CHRISTIE HENRY WILLIAM MCLEAN
IPC: D06B3/08
Filed: 1916-05-05
Abstract: 103,239. Christie, H. W. M., and Farquhar, W. May 5, 1916. Hank type.-To facilitate removal and insertion of hanks, the poles B are adapted to be tilted to raise their outer ends, without disconnecting the poles from the driving-means. The poles are connected by hinge or universal joints C to driveshafts B<1> and are raised by rotary or sliding cams or eccentrics at the points G. The inner ends of the poles pass between upright jaws C<1> to prevent lateral movement.
Patent GB-138204-A (GB)
Title: Improvements relating to controllers for use with electric motors and so forth
IPC: H02P1/06
Filed: 1919-03-15
Abstract: 138,204. Amberton, R. March 15, 1919. Controllers with no-volt release.-A controller or regulator has a brush-carrying arm a which can be moved to any position forward or backward over the resistance contacts. During the forward movement, the arm engages a stop p on a spring drum g and carries the drum forward. The drum is provided with ratchet teeth h and is prevented from moving backwards by a detent m which is held in by the no-volt coil i. When the no-volt release operates, the drum g flies back and the stop p engages the arm in whatever position the arm may be left, and returns the arm to the zero position. The arm may be lightly held in each contact position by a spring-pressed roller on the arm engaging rounded teeth on the face of the drum g.
Patent GB-1134633-A (GB)
Title: Improvements in or relating to draught control in chimneys
IPC: F23J13/08
Filed: 1965-02-16
Abstract: 1,134,633. Chimney top. C. W: STREET and H.J. DUPLESSIS. 10 Feb., 1966 [16 Feb., 1965], No. 6621/65. Heading F4J.  A chimney top for a disused chimney comprises a mushroom cap 1 formed with a series of - spacing ribs 2 seating on the chimney top 4 and defining therewith small air gaps 3. The cap-is held in place by an inverted U shaped spring 5 or by a toggle mechanism. &c. It may be made of steel; aluminium or plastics materials such as a fibreglass-reinforced polyester, an epoxy moulding, P.V.C polythene, nylon, polypropylene, polystyrene, A.B.S., or an acrylic resin. The underside of the ribs may be lined  with a strip of rubber or like soft material.
Patent GB-936282-A (GB)
Title: Improvements relating to braking apparatus for regulating pressure on motor vehicles
IPC: B60T8/26
Filed: 1961-02-23
Abstract: 936,282. Fluid-pressure brakes. DAIMLER-BENZ A.G. Feb. 23, 1961 [March 3, 1960], No. 6718/61. Class 103 (1). An hydraulic braking system for a motorvehicle having pneumatic springing comprises a regulator so constructed and arranged that the ratio of front wheel braking force to rear wheel braking force is caused to vary in a manner dependent on the vehicle load and the degree of braking, and such that this ratio can follow the curve 12<SP>1</SP> or 13<SP>1</SP>, Fig. 1, and thus approximate closely to the ideal curves 12, 13, for both minimum and maximum load conditions, respectively, where 11 represents front wheel braking force and 10 rear wheel braking force. For this purpose the regulator is arranged to receive pressure from the master cylinder 45, and is responsive both to pneumatic pressure in the bellows 41 of the rear suspension and also to a normally constant but adjustable pressure derived from the pneumatic suspension via a regulating valve 58. The arrangement is such that as the braking pressure rises the regulator maintains equal pressure in both rear and front wheel cylinders 46, 53 until a predetermined pressure is reached, at point 14 or 14<SP>1</SP>, Fig. 1, or intermediately, depending on the pressure in the bellows 41 and the adjustment of the valve 58. At this point the brake pressure, acting on a piston 35 of the regulator in opposition to the pressure in bellows 41 acting on a control piston 30, closes a valve 37 so that instead of brake fluid passing directly to the front wheel cylinders 53 via valve 37, passageway 49, chamber 50 and conduit 52, the piston 28 is moved and, owing to the difference between the area of its face exposed to the brake pressure and the face of its annular part 28<SP>1</SP> in the chamber 50, transmits a higher pressure via the conduit 52 to the front wheel cylinders 53, this higher pressure also being influenced by the air pressure in bellows 41 acting on a piston 25 in opposition to the brake pressure. The point at which the valve 37 is closed and the ratio of higher pressure to brake pressure obtained thereby are modified by the pressure in bellows 41 acting on pistons 30, 25 respectively. The normally constant pressure provided by the valve 58 also acts on both pistons 30, 25, but in opposition to the pressure in bellows 41, via conduit 57, chamber 56 and passageway 59. Extensions 27, 26 of the pistons 28, 25 are in abutting relationship in a housing 20, and a rod 34 extends through apertures in these extensions to interconnect the pistons 35, 30. In use, the valve 58 is adjusted to give an appropriate constant pressure in the chamber 56 according to the load on the vehicle, or the valve 58 may be designed to give the appropriate pressure automatically as the load on the vehicle is changed.
Patent GB-349139-A (GB)
Title: Improvements in the manufacture of paper or paper-like material
IPC: D21H27/32
Filed: 1930-02-28
Abstract: 349,139. Pap e r for wrapping and toilet purposes, ROBINSON & SONS, Ltd., Wheat Bridge Mills, and ROBINSON, V. O., Chander Hill, both in Chesterfield, Derbyshire. Feb. 28, 1930, No. 6731. [Class 96]. Paper like material suitable for toilet purposes and for wrapping and packing pastry comprises compressed cellulose wadding carried by a tougher backing of comparatively non-absorbent material such as waterproof paper to which it is secured by adhesive. The surface layer which consists of cotton wadding is more coherent, being composed of longer fibres, and by compressing a pattern each long fibre is secured at at least two separate places so that the product will withstand considerable rubbing ever. when moistened without disintegrating and breaking away. In apparatus for manufacture of this material cellulose tissues 1, Fig. 1, are superposed with a surface cotton wadding layer 5 on a sheet of paper 6 which is coated with adhesive at 6<1> and the combined sheets passed between embossing rollers 7 which emboss a pattern such as is shown in Fig. 2, after which the material passes to a slitter 8 and is wound at 9.
Patent GB-557543-A (GB)
Title: A manually or automatically resettable electric snap action switch
IPC: H01H71/16
Filed: 1941-05-27
Abstract: 557,543. Thermal switches. ARROW ELECTRIC SWITCHES, Ltd. May 27, 1941, No. 6779. Convention date, June 14, 1940. [Class 38 (v)] In a thermally-operated overload switch current passing through a heating coil 14 causes the downward bending of a bimetallic strip 16 and consequent actuation of a lever 50 connected by a spring 56 to a contact lever 58 pivoted at 60 whereby the spring 56 is carried over a dead-centre position and the contact lever 58 is separated from a fixed contact spring 68 and moved into engagement with an adjustable stop 90 : subsequent cooling of the bimetallic strip 16 will allow the lever to return under the action of a spring 54 but the spring 56 will only be moved over the dead-centre position to reclose the contacts if the stop 90 is in its 'automatic' position. In its other 'manual' position, the contacts will remain open till the plunger 92 is manually lowered to bring the stop 90 into the automatic' position. Specifications 557,576 and 557,577 are referred to.
Patent GB-300845-A (GB)
Title: A method of and means for forming mosaic coverings, for articles of various descriptions
IPC: B44C3/12
Filed: 1928-03-05
Abstract: 300,845. K÷rber, P. March 5, 1928. Mosaics.-Small mosaic elements c are shaped on the lower face to correspond to the contour of the covered body, the upper face being either similarly curved or of spherical, oval or other shape, or ornamented in relief or otherwise. The sides of the elements are tapered so that the top edges can fit closely together. The elements are made of porcelain, majolica, or other fine ceramic material, and may be attached to small curved plates of wood, glass, or other material which are secured together edge to edge, for example, by dovetails, to form a picture, advertisement, or price list. The invention is applicable to the covering of pottery, statuary, columns, and other bodies, of glass, metal, wood, leather, stone, fabric, or other material. Specification 260,234 is referred to.