baber/WOPTO huggingface dataset:
Patent GB-1424374-A (GB)
Title: Chemical products
IPC: C07D501/04
Filed: 1973-06-25
Abstract: 1424374 Epimerizing 7α-amino-3-cephem compounds MERCK & CO Inc 25 June 1973 [30 June 1972 16 April 1973] 29996/73 Heading C2C A process for epimerizing a 7α-amino cephalosporin wherein R 1  is a blocking group and R<SP>1</SP> is hydrogen, C 1-5  alkanoyloxy, carbamoyloxy, N- substituted carbamoyloxy, halo, C 1-5  alkoxy, C 1-5  alkoxy C 1-5  alkoxy, benzyloxy or substituted benzyloxy comprises reacting (a) the compound above with an aldehyde or ketone to yield compound IV wherein R<SP>2</SP> is alkyl or aryl, R<SP>3</SP> is H, alkyl or aryl, (b) reacting the latter compound with a strong base at -200‹ to + 20‹ C. in the presence of an aprotic solvent followed by the addition of excess acid to neutralize the base; (c) recovering the compound III and (d) reacting this compound with acid in the optional presence of an amine and recovering the 7#-aminocephalosporin. Step (a) may be suitably carried out using p-nitrobenzaldehyde, in the presence of methylene chloride solvent. A suitable solvent for step (b) is tetrahydrofuran; additionally a dipolar aprotic solvent such as dimethylformamide may be present. The base used in step (b) is preferably an organo alkali compound such as phenyl- or butyl-lithium. The acid used in step (b) is preferably a carboxylic acid such as acetic acid. Step (d) may suitably be carried out in the presence of 2,4- dinitrophenylhydrazine and p-toluene sulphonic acid. A modification of the above process comprises reacting the compound of Formula IV with a base that will not attack the betalactone ring in the presence of an inert solvent to obtain a product of Formula III. The base may be an amine, and the reaction may take place between -150‹ and 50‹ C. There is exemplified (1) the treatment of one of the following:- p-methoxybenzyl dl-7α amino cephalosporanate, p-methoxybenzyl dl-7α amino-3-methyl cephalosporanate, trichloroethyl dl-7α-amino-3-methyl decephalosporonate, benzhydryl dl-7α-amino-3-carbamoyloxy decephalosporanate, benzyl dl-7α-amino-3- chloromethyl decephalosporanate and trichloro ethyl dl-7α-amino cephalosporanate (a) with p-nitro benzaldehyde so as to form the p-nitrobenzylideneamino derivative which (b) is dissolved in tetrahydrofuran and reacted with phenyl lithium and acetic acid to epimerize the α- into the #-form and (c) the #-form is treated with 2,4 - dinitrophenylhydrazine p - toluene sulphonic acid to form the parent #-compound, e.g. p - methoxybenzyl dl-7# amino cephalosporanate; (2) in place of step (b), the p-nitrobenzylideneamino derivative may be epimerized by treatment in methylene chloride with diazabicyclononane.
Patent GB-210539-A (GB)
Title: Improvements in means for mounting the license plate on motor road vehicles
IPC: B60R13/10
Filed: 1922-11-04
Abstract: 210,539. A.C. Cars, Ltd., (formerly Auto- Carriers, Ltd.), and Smith, S. Nov. 4, 1922. Licence holders for motor vehicles. -The licence, backing, and transparent cover are held by a ring 5 in a recess formed in a panel or door or in the bonnet of the vehicle, the ring being secured preferably by screws 6 inserted from inside the vehicle.
Patent GB-648523-A (GB)
Title: Improvements in or relating to television pick-up tubes or the like
IPC: H01J29/10
Filed: 1948-11-22
Abstract: 648,523. Cathode-ray tubes. CINEMATELEVISION, Ltd., and FREEMAN, G. S. P. Nov. 22, 1948, No. 30263. Drawings to Specification. [Class 39 (i)] In order to improve the resolution obtained in the image converter section of a television pick-up tube, such as an image iconoscope or image orthicon, the photo-sensitive surface is disposed near to the target electrode and a high potential is maintained therebetween. The potential difference may be 7000-8000 volts and the spacing 5 mm.
Patent GB-811620-A (GB)
Title: Improvements relating to motor vehicles of cellular construction
IPC: B62D21/15
Filed: 1957-09-26
Abstract: 811,620. Road vehicle bodies. DAIMLERBENZ A.G. Sept. 26, 1957 [Sept. 26, 1956], No. 30266/57. Class 108(1) An end group 2 of a cellular motor vehicle has an external sheathing 3 closed at the rear end by an end-cap 4 mounted on the longitudinal bearers 7 by a square section shaft 10 and rubber bush 11, so that after deflection the end-cap will return to its original position. The shaft 10 may also be round and resilience of the end-cap 4 provided by a separate spring.
Patent GB-447368-A (GB)
Title: An improved printing ink and articles impressed thereby
IPC: C09D11/02
Filed: 1935-11-01
Abstract: 447,368. Ink. INDUSTRIAL PATENTS CORPORATION, Union Stock Yards, Chicago, U.S.A.-(Assignees of Walter, C. T.) Nov. 1, 1935, No. 30271. Convention date, May 27. [Class 146 (iii)] A printing-ink for marking animal matter such as sausage skins prepared from animal intestines contains a protein precipitant, preferably formaldehyde. The ink comprises not less than 50 per cent by weight of a pigment such as titanium oxide, and a fluid vehicle comprising a waterproof spar varnish, unsaponifiable waxy or greasy matter such as a mixture of paraffin and petroleum jelly, a lithographic linseed oil, and not more than 20 per cent of formaldehyde solution of approximately 30 per cent concentration. The spar varnish may be composed of china wood or other drying oil and a natural or synthetic resin. Powdered alum may be used in place of formaldehyde.
Patent GB-1167127-A (GB)
Title: N-Carboxyacyl-N'-Hydrocarbylthio Carbodiimides and their Urea Derivatives
Inventor: BROWN MELANCTHON S
IPC: C07C313/20
Filed: 1968-06-25
Abstract: 1,167,127. Fungicides containing carbodiimides or urea derivatives. CHEVRON RESEARCH CO. 25 June, 1968 [26 June, 1967 (2)], No. 30326/68. Heading A5E. [Also in Division C2] Fungicidal compositions contain a solid or liquid diluent or carrier and (1) a carbodiimide of the formula R-N=C=N-S-R<SP>1</SP>, in which R denotes a carboxyacyl group of 1-20 carbon atoms and R<SP>1</SP> denotes (a) an aliphatic group of 1-8 carbon atoms substituted with 1-6 chlorine or bromine atoms and, optionally with a nitro group or (b) a monocyclic aryl group of 6-8 carbon atoms optionally substituted with 1-5 chlorine or bromine atoms, or (2) a urea derivative of the formula R-NHC(O)-NH-S-R<SP>1</SP>, R and R<SP>1</SP> being as defined above (see Division C2).
Patent GB-280583-A (GB)
Title: Improvements in pneumatic relay apparatus, especially applicable to brakes
IPC: B60T15/04
Filed: 1927-11-11
Abstract: 280,583. Poussin, L. de la V., (Assignee of Ateliers de Construction de la Meuse Soc. Anon.). Nov. 15, 1926, [Convention date]. Fluid-pressure.-In a device for the precise control of fluid pressure in a chamber, such as a brake-operating cylinder, the chamber 2 is adapted to be connected with two sources of different pressure, such as a compressed-air chamber 1 and a chamber 3 communicating with the atmosphere. through a main ring-shaped valve 11 with which co-acts a secondary valve 8 having a spring 10 acted upon by a lever 35, so that the air pressure in the chamber 2 depends upon the pressure put upon the spring 10. The valve 8 may be arranged at the same end of the sleeve 7 as the valve 11, as in the application to vacuum brakeoperating gear illustrated in Fig. 3. In this device the chamber 1 is permanently connected to a source of suction, and the chamber 3 to the atmosphere by way of ports 24, so that the pressure put upon the spring 10 by the brake pedal determines the degree of vacuum in the chamber 2, and therefore in the cylinder 25 connected thereto, and the piston is correspondingly actuated together with the brake rods 22, 23.
Patent GB-747200-A (GB)
Title: Improvements in or relating to fore-and-aft sail rigs for sailing craft
IPC: B63B15/02
Filed: 1953-11-03
Abstract: 747,200. Sailing-boats. VOSPER, Ltd., and HASLER, H. G. Feb. 3, 1955 [Nov. 3, 1953], No. 30377/53. Class 115. A sailing-rig includes a mast, a boom structure, means for rotating the boom structure about the mast, means for adjustably limiting the rotation of the boom structure, and at least one sail with its luff carried from the mast and its foot held, at least at the clew, from the boom structure. In the embodiment shown a laterally self-supporting hollow mast 1 supporting twin triangular sails 2, 3 is supported for rotation about its own axis in bearings 4 at the deck 6 and bearings 5 on the keel 8, rotation being effected by a rope 9 engaging a pulley 10 secured to the mast. The boom structure consists of twin booms 11, 12 each comprising an upper beam 13 and a supporting beam 13 with a stiffening bar 15, each boom being supported for rotation about the mast by bearings 16, 17. The booms are capable of 360 degrees rotation around the mast, rotation being controlled by a rope or wire 18 loading from each boom through a sheave 19 to any convenient operating position. The booms can be closed upon each other as shown in full line in Fig. 2 and held in this position by a spring-loaded catch, or can be opened to any extent up to a maximum angle of about 220 degrees as shown at 20 in Fig. 2. The extent of opening is limited by a fixed stop 52 on boom 11 engaging an adjustable stop 50 on boom 12, a latch 53 on boom 11 riding over stop 50 to hold the booms in position when the two stops engage. Each sail has its clew 21 connected by a wire or rope 22 passing through a sheave to a winch drum 24 mounted on the boom. Each sheave 23 is mounted on a clew traveller 25 movable in a guide 26 on the boom, movement of the traveller along its guide being controlled by a wire or rope 27 passing through a sheave 28 on the end of the boom to a winch drum 29 mounted adjacent to the winch 24. Various methods of mounting the mast are described. A semi-stiff sail is preferred, and according to the Provisional Specification plywood may be used. A preferred refinement is an aerofoil member arranged parallel to the mast to provide the equivalent of an aircraft " slot " between itself and the mast and luff. According to the Provisional Specification five shafts, one for rotating the mast, two for rotating the booms, and two for the clew outhauls, may be provided and be turned from a control unit.
Patent GB-624105-A (GB)
Title: Crystallising potassium phosphate
IPC: C01B25/30
Filed: 1946-10-11
Abstract: A crystal of potassium di-hydrogen orthophosphate of a size suitable for optical and piezoelectric uses, is obtained by slowly depositing the phosphate upon a germ crystal from a saturated solution of the said salt, which solution also contains potassium borate.  A germ crystal is suspended by one or more hairs in a solution comprising approximately 1500 gm. of water, 500 gm. of potassium phosphate (KH2PO4) and 27 gm. of potassium borate, at a temperature between 50 DEG  and 70 DEG  C.  The temperature is then lowered thermostatically by 1/10 th of a degree daily for about 1 1/2 months.  The most favourable pH of the solution is in the neighbourhood of 5.
Patent GB-159971-A (GB)
Title: Improvements in paper-fastening apparatus and the like
IPC: B31F5/02
Filed: 1919-12-08
Abstract: 159,971. Nathan, A. Jerrold-. Dec. 8, 1919. Fastening sheets together by punching.- In apparatus for fastening sheets together by punching, the central rod B carrying the cutting and fastening devices and the holding-down plate C, is extended below the latter and engaged at its lower end by a leaf-spring D, a comparatively weak spiral spring A being located on the rod above the holding-down plate. A front plate with stamped-out lugs is sprung inside or outside the frame G to enclose the mechanism.
Patent GB-1154577-A (GB)
Title: Improvements in Fuel Injection Pumps.
IPC: F02M41/12
Filed: 1966-07-08
Abstract: 1,154,577. Fuel injection pumps. ROBERT BOSCH G.m.b.H. July 8, 1966 [July 12, 1965], No.30689/66. Heading F1A. In a fuel injection pump having an hydraulically actuated spool 18 controlling the spill passage 19a, 19b, the spool biasing spring 21 bears on a spring-biased and hydraulically damped abutment piston 33. The return movement of the spool 18 by the spring 21 is controlled by the adjustable throttle 30. The throttle 30 and the abutment piston damping throttle 37 may be simultaneously controlled. The throttle 37 may be closed at low pump speeds. The spool 18 may be rotated by means of shaft 41 to terminate pump delivery. The shaft 41 may be mounted on the end of opposite the spring chamber 38.
Patent GB-603759-A (GB)
Title: Improvements in or relating to alternating current electromagnets or relays
IPC: H01F7/12
Filed: 1945-11-16
Abstract: 603,759. Electromagnets. NAAMLOOZE VENNOOTSCHAP FABRIEK VAN ELECTRISCHE APPARATEN VOORHEEN F. HAZEMEIJER & CO. Nov. 16, 1945, No. 30735. Convention date, Aug. 28, 1942. [Class 35] [Also in Group XXXVII] An A.C. magnet has a laminatedstructure provided with a short-circuiting winding constituted in part by elongated deposits 5, 6 produced by welding or soldering and extending between the pressure plates arranged at the sides of the laminµ. The pressure plates themselves complete the short-circuited winding. Specifications 24977/11, [Class 35], and 366,464 are referred to.
Patent GB-534766-A (GB)
Title: Improvements in and relating to electric motor control systems
IPC: B60L15/12
Filed: 1939-11-25
Abstract: 534,766. Control of D.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 25, 1939. No. 30791. Convention date, Nov. 25, 1938. [Class 38 (iii)] A tractor motor 10 with series and shunt fields 11, 12 is prevented from regenerating during movement of pedal controller 27, from its " off " position whilst the vehicle is coasting at high speed by a resistor 21d in series with the field 12. During normal acceleration the resistor 21d is shorted by contactor 25, the coil S2 of which is energized initially over interlock 59 in series with contacts 57 on the controller 27, the pick-up circuit being across the accelerating resistance 15 so as to respond to the large voltage drop thereacross during acceleration from rest. Regenerative braking is obtained by partial return of the pedal to its "off" position causing resistors 21a, 21b, 21c to be cut out of the shunt field circuit. Dynamic braking is obtained by depressing pedal controller 29 which causes contactor 84 to complete the amature loop and contactors 25, 46, 47 to complete the shunt field circuit. Further depression of the controller 29 causes resistors 21b, 21c to be cut out of the field circuit and an air brake to be applied. Full depression of the controller 29 causes dynamic braking to be cut out and full air braking applied. At low speeds dynamic braking is cut out by coil S1 being insufficiently energized from across the braking resistance to hold field contactors 46, 47 closed. A lamp 96 indicates maximum permissible speed by closing of contactor 95 consequent upon fall of armature current. The controller 27 is similar to that described in Specification 518,270. Specification 497,430 also is referred to.
Patent GB-237493-A (GB)
Title: Improvements in or relating to adjustable strap holders for harness or the like
IPC: B68B5/00
Filed: 1924-12-22
Abstract: 237,493. Walsh, J. M. Dec. 22, 1924. Buckles.-A buckle for use with harness straps comprises a frame, Figs. 1 and 6, divided into two spaces 11, 12 by a cross-bar 10 around which bar and the frame a strap 16 is passed, as shown in Fig. 3. The space 11 on one side of the cross-bar is made narrower than the width of the frame by providing ribs 13 so that pressure is exerted on the edges of the strap to assist in securing it to the frame. The form of buckle shown in Figs. 1 and 3 is provided with a curved portion 13 on its forward end bar 9 by which a spring hook 17 may be attached in a manner to prevent rubbing of the connecting link 18 against the leather of the strap.
Patent GB-847955-A (GB)
Title: Positively operated starting device for starting motors
IPC: F02N15/06
Filed: 1957-10-02
Abstract: 847,955. Engine starter drives. LAFITTE, T. Oct. 2, 1957 [Oct. 13, 1956; Dec. 28, 1956; Jan. 9, 1957; July 6, 1957], No. 30893/57. Class 7(5). The invention relates to the starting of internalcombustion engines and more particularly to a positively operated starter comprising a control of the kind in which a pinion mounted on the shaft of an electric motor meshes by longitudinal displacement with a tooth wheel integral with the motor to be started. In Fig. 1 a sleeve 1 which is operated by a forked lever 34 has teeth 6 which co-operate with teeth 7 on the pinion 8. The number of teeth on the sleeve is preferably double the number of teeth on the pinion. The teeth form a one-way drive. The lever 34 may be controlled either by hand or by a solenoid. When the lever 34 is operated the pinion is first brought into mesh with the engine gear 33. If movement of the lever 34 is continued it pivots about pins 19 and operates member 23 which brings the contacts 24, 26 into contact with one another. Thus the starting motor is energized. The helical threads 5 and co-operating grooves apply a force to the sleeve 1 which cause it to act on the pinion and drive it towards the stop 10. If tooth abutment occurs when the lever 34 is first operated the contacts 24, 26 are engaged and the motor started but the motor is stopped when the pinion engages the gear 34. In the case of solenoid operation the solenoid core may carry a rod which passes through the casing and may be manually operated. Or a pusher member may be provided in the front part of the starter for manual operation. In Fig. 9 the tension of the spring 56 may be adjusted by the disc 57 and the lock-nut 58. A threaded ring 73 is provided and may be made of sound deadening material (plastic, celeron, nylon). This ring has sufficient thickness to receive the shock of the pinion 8 operated by its spring 9 when the cogs of the ratchet periodically return to their meshing position. This will result in a notably deadened click. Alternatively, to increase the audibility of the click there may be added either to the pinion 8 or to the sleeve 1 one or several vibrating blades. In Fig. 12 a ring 78 which may rotate and slide on the shaft 3 helps to centre the sleeve 1. The ring may be of steel with a high chrome content or a bronze or nylon. The ring can rotate freely in the pinion 8. In Fig. 15 the sleeve 1 has a conical friction surface 91 engaging a similar surface on a ring 89. In Fig. 16 the pinion 8 is provided with a conical joint 93 and rotates on an oscillating ring 94 which is in turn free to rotate and to slide on the shaft 3 of the starter.
Patent GB-388490-A (GB)
Title: Improvements in or relating to chair seats
IPC: A47C4/03
Filed: 1931-11-09
Abstract: 388,490. Upholstery. LUNGHI, P., 70, Kings Road, Camden Town, London, and LONDON GENERAL OMNIBUS .CO., Ltd., 55, Broadway, Westminster. Nov. 9. 1931, No. 30979. [Class 52 (iv).] The detachable bottom (and/or back) of a chair seat, for example, for omnibuses, is secured in position by a cord or strip passing around a considerable portion of the periphery of the bottom and adjacent frame and adapted to be tensioned to hold the bottom to the frame. As shown in Fig. 1, the cord 28 is threaded through the hem of an edging flap 26 depending from the bottom 24 and terminates at each end in a button 29, Fig. 8, detachably held to a socket 30 on the frame by a radially slotted removable plug 32. The cord passes, at its middle, around a pulley 36 carried by a threaded bolt 37 so that when a nut 38 is turned the cord is tightened and grips the flap to a groove in the frame. Similar means are described for securing the back 25 in position, a tensioning device being provided at one or each end of the cord.
Patent GB-1452246-A (GB)
Title: Conveyors
IPC: B65G21/20
Filed: 1975-07-25
Abstract: 1452246 Conveyer spill plate arrangements INDUSTRIAL DISTRIBUTIONS (MIDLANDS) Ltd 25 July 1975 31125/75 Heading B8A A clamping system for a side skirt of a conveyer belt comprises a torsion bar adapted to be rotatably secured longitudinally of a conveyer structure, clamping means attached to the bar and pivotable between clamping and non-clamping positions, means to rotate the bar, and means to secure it in one of a plurality of alternative positions dependant upon the desired torsion. The description is the same as in Specification 1,452,247, but the claims differ.
Patent GB-1394896-A (GB)
Title: Inflatable boxing glove or pillow
IPC: A63B71/08
Filed: 1972-07-04
Abstract: 1394896 Boxing glove V PETRUSEK 4 July 1972 [6 July 1971 24 Feb 1972] 31165/72 Heading A6M A boxing glove or pillow made from resilient sheet material comprises an open ended tubular sleeve 11, a casing 14 encompassing said sleeve defining an air chamber 17 and attached to the sleeve so that at least one end thereof remains open to permit insertion of a fist and an air valve (18, not shown) in the casing 14 for inflation of the chamber whereby on inflation the sleeve forms a constriction between the ends thereof to firmly enslave and and resist movement of the user's fist. In a second embodiment (Fig 6, not shown) a diaphragm (34) is incorporated across one end of the sleeve to close that end and the casing includes a separate end chamber connected by a hole (34) to the main chamber.
Patent GB-689516-A (GB)
Title: Shorts for personal wear and method of making same
IPC: A41B9/02
Filed: 1950-12-21
Abstract: 689,516. Undergarments. TERRY, T. B. Dec. 21, 1950 [Dec. 29, 1949], No. 31167/50. Class 141. Shorts of woven fabric comprise a lower portion including the seat, crotch and leg regions and two triangular portions forming the upper front, side and back regions. The lower portion is formed of a single blank having a straight top edge 30, Fig. 4, extending along the straight of the fabric, short downwardly diverging side edges 36, 38, inwardly converging bottom leg edges 40, 42 and a central concave edge portion 44. The triangular blanks, Fig. 5, have straight upper edges 46, 48, edges 54, 56 which are folded back along lines 58, 60 and stitched to form fly portions and edges 50, 52 which are stitched to form fly portions and edges 50, 52 which are stitched to the top edge 30 of the lower portion along the line 20, Fig. 1. The crotch seam 12 below the fly portion 18 is formed by joining the edges 32 and 34 to each, other and the edges 36 and 38 to the arcuate edge 44 thus forming the leg portions 8, 10. The garment may be completed by an elastic waistband 26. In a suitable cloth layout for a series of sizes of pants from size 30 to 42, part of which is shown in Fig. 9a, the single blanks 2 are arranged in pairs with their top edges adjacent the selvages of the fabric bolt and two pairs of triangular blanks 4, 6 are arranged to form a diamond between the pairs of single blanks.
Patent GB-971837-A (GB)
Title: Method of discharging bulk material from pressure bins
Inventor: BECKMANN HEINRICH
IPC: B65G53/22
Filed: 1962-08-15
Abstract: 971,837. Pneumatic conveyers. POLYSIUS G.m.b.H. Aug. 15, 1962, No. 31355/62. Heading B8A. The rate of flow of material from a fluidized hopper 1, Fig. 5, is maintained substantially constant irrespective of the change in height of material by automatically controlled variations of the air flow and bin pressure. In the example, a mercury contact manometer 11 controls the fluidizing air inlet valve 7 and the filter air outlet valve 9 to maintain required rates of air flow, the switch settings being changed automatically through level indicators such as photo-cells whereby the pressure within the bin is raised in stages to compensate for the loss of head due to the fall in the level of material.