baber/WOPTO huggingface dataset:
Patent GB-824323-A (GB)
Title: Improvements in or relating to ferromagnetic chromium oxide materials
IPC: G11B5/706
Filed: 1956-06-13
Abstract: A ferromagnetic chromium oxide consisting of small particles of tetragonal crystal structure having an average length of not more than 10 microns and not more than 10% of the particles being longer than 10 microns, and also having an X-ray diffraction pattern which corresponds substantially entirely to a tetragonal crystal structure having cell constants of ao=4.41 and co=2.90 and containing 61.9\sB3% by weight of chromium, is prepared by heating chromium trioxide in the presence of water to 400-525 DEG  C. under pressure of at least 500 atmospheres.  The water is preferably 0.1-6 times the weight of the chromium trioxide employed and the pressure is suitably up to 3000 atmospheres.  The chromium oxide obtained is acicular having an average axial ratio of 2 to 1 to 6 to 1.  The ferromagnetic chromium oxide has a maximum induction, Bm, from 6200 to 7400 gauss and has a ratio of residual induction, Br, to maximum induction, Bm, of at least 0.17; the Curie temperature is 124 DEG  C. and the intrinisic coercive force, Hci is at least 35 oersteds.  According to a typical example, a platinum tube, sealed at one end, was charged with chromium trioxide and water and a closely fitting platinum piston was inserted in the tube.  The remainder of the tube was then filled with water and a tightly fitting platinum cap placed over the end.  The sealed tube was then placed in a water-filled metal bomb where it was heated to 475 DEG  C. at 3000 atmospheres for three hours.  After cooling and releasing the pressure the reaction product was removed from the platinum tube and filtered.  The precipitate was washed with water and finally by acetone and then air dried.  The particles of the product were substantially uniform having transverse dimensions from 0.4 to 1 micron and length from 1 to 3 microns; the product contained 61.76% chromium and the coercive force was 47 oersteds, the Br/Bm ratio was 0.25 and the Bm value was 6360 gauss.
Patent GB-316391-A (GB)
Title: Improvements in and relating to mechanical pictorial toys
IPC: A63H33/22
Filed: 1929-03-22
Abstract: 316,391. Payne, W. J. March 22, 1929. Scenic toys. - In a picture toy or advertising device of the type comprising independently rotatable parts or discs bearing picture sections adapted to be brought together to form a composite picture, three or more such parts are arranged to make up animal or human figures, one of the parts bearing representations of different body portions and the others of different head and face portions. Four discs, 4 - - 7, are pivotally mounted on a flat base 3 and have upon them the various picture sections the disc 4 bearing the various body portions and the remaining discs the various head and face portions. These discs overlap to allow the different sections to be brought together. The discs are independently rotated by hand, for which purpose slots 9 are formed in the base 3. The base is provided with a front cover, not shown, having an opening through which the composite picture is displayed, the remainder of each of the discs being obscured. Other numbers of discs may be employed. For advertising purposes, the discs may be transparent and illuminated from the rear, and they may be rotated by clockwork or by an electric motor.
Patent GB-319639-A (GB)
Title: An improved loud speaker system
IPC: H04R3/14
Filed: 1928-06-25
Abstract: 319,639. Brandes, Ltd., (Federal Telegraph Co.). June 25, 1928. Systems for transmitting music; magnetic instruments.-A loud-speaker system comprises a source of electrical energy modulated at voice frequencies, means for separating the voice' frequencies into a plurality of overlapping bands spaced along the voice frequency range, and translator means including a single aperiodic diaphragm for converting the frequencies into sound waves. Fig. 1 shows such a system applied to the output of a cascade vacuum tube amplifier, the output circuit 12 of the tube 11 being provided with a plurality of electrical units 125, 225, 325 so designed that each converts electrical energy into mechanical vibrations most efficiently at certain points distributed along the voice frequency range. Each unit comprises a transformer 26, the secondary 28 of which is connected to the telephone winding 29 across which is shunted a condenser 30. The windings 29, which are of comparatively high resistance to prevent the resonance peak from being too sharply defined, are provided with armatures 35, 36, 37 connected by rods 38, 39, 40 to the apex 41 of a conical aperiodic diaphragm 33 supported at its edges by a rigid rim 34. In the modified arrangement, Fig. 3, the windings 29 are individually connected in series with condensers 142, 242, 342 and are connected in parallel by conductors 43, 44 coupled to the output circuit 12 by an impedance 45.
Patent GB-581338-A (GB)
Title: Improvements in or connected with dolls, puppets, toy animals and the like
IPC: A63H9/00
Filed: 1943-11-05
Abstract: 581,338. Toys. HAUGHTON, W. H. Nov. 5, 1943, No. 18382. [Class 132 (iii)] A doll, puppet or toy animal has a foundation constructed from a single length of wire or strip of soft pliable material covered or coated with an adhesive solution and then formed into the desired shape, each part or limb being formed by bending the wire or strip on itself whereby the contacting portions of the wire or strip adhere to each other, the shaped foundation being preferably wrapped with a strip or strips of latex or other material. The wire or strip before shaping may be enclosed in rubber or other suitable material. For constructing a doll a former consisting of a base 1, Fig. 1, with upstanding pins 2, 3 is provided and the foundation consisting of a length of pliable wire 4 is passed around the pins as shown. The portions of the wire are pressed together and held by the adhesive. After removal from the former the shaped foundation is wrapped with a strip of latex 6, Fig. 6, and placed in a mould filled with sponge rubber or other mouldable material 8. A section of the wire when covered with rubber 5 is shown in Fig. 3.
Patent GB-596091-A (GB)
Title: Improvements in or relating to movable beds for boring machines and like machine-tools
IPC: B23Q1/40
Filed: 1945-07-18
Abstract: 596,091. Boring and drilling. PEGARD, M. July 18, 1945, No. 18407. Convention date, July 24, 1942. [Class 83 (iii)] Machine framings; work holders.-The moving tables or saddles of boring &c. machines ride on rollers carried between the spaced teeth of combs. Fig. 2 shows two traversable tables 1, 10 mounted on a bed 2, rollers 25, 40 being provided in runways between the movable parts and maintained apart by carriages 27 formed as combs, as shown in Fig. 7. To prevent rocking, adjustable bearing pins are provided ; as shown in Fig. 6, the pin 30 is eccentrically mounted on a slotted cylindrical member 31 which is held in its adjusted position by a conical-headed screw 33.
Patent GB-720063-A (GB)
Title: Improvements in or relating to devices for signalling the boiling of milk or other liquid in a pan
IPC: A47J27/56
Filed: 1952-07-22
Abstract: 720,063. Portable cooking-vessels. WILLBER, C. July 17, 1953 [July 22, 1952], No. 18446/52. Class 66. A device for signalling the boiling of liquid in a pan comprises a bell-like part 10 adapted to rest on the pan bottom and be agitated by the boiling liquid to rattle on the bottom and a rod 9 extending upwards above the liquid for handling purposes. The part 10 is provided with a notch 12 and the area of the opening may be adjusted by means of a. slide so as to vary the degree of boiling at which rattling commences. At its upper end the rod 9 may be provided with a guard-disc 8 and a heat-insulating knob 17. The disc 8 may be of a diameter nearly equal to that of the pan so as to strike the wall of the pan when the device is agitated by the boiling liquid. The device 9, 10 may be associated, without attachment, with means for preventing boiling-over comprising a hollow trumpet-mouth member 2 having apertures 21 at the bottom and 7 at its upper end above the liquid level. Alternatively, as shown, the knob 17 may be a loose fit in a bush securing the member 2 to the disc 8 so that whereas the signalling device 9, 10 has a certain freedom of lateral movement, both the device 9, 10 and the member 2 may be lifted by means of the knob 17. A disc 20 on the rod 9 augments the boiling indication by striking the inner wall of the member 2. and also prevents liquid from rising within the member 2 above the level of the apertures 7. In another embodiment the rod 9 is carried in a vertical bearing permitting vertical sliding movement, with slight lateral movement in the member 2. In a further embodiment the rod 9 is weighted at its upper end and the protective disc 8 is shaped and apertured in a manner to prevent boiling over. The rod 9 may be telescopic.
Patent GB-228493-A (GB)
Title: Improvements in apparatus for beaching seaplanes
IPC: B60P3/11
Filed: 1924-08-02
Abstract: 228,493. Rohrbach, A., (Assignee of Rohrbach Metall-Flugzeugbau Ges.) Aug. 2. 1924, [Convention date]. Ships &c. adapted to run on land.-A floating trolly for beaching seaplanes is hauled into position for attachment to the machine, by means of a rope and winch gear attached to the trolly. In the arrangement described, the trolly consists of wheels 1 mounted on each side of a float portion 3 carrying a turret 5 the upper end of which is adapted to engage in a fitting 7 on the seaplane wing. A winch 10 is mounted on the turret 5, a rope 12 attached at one end to the winch barrel passing over a pulley 13 and being attached at its other end to an eye-brackec 11 on the turret. In operation. the trolly is hauled close to the seaplane by means of a rope, the pulley 13 is hung upon a hook 9 on the wing fitting 7, and the winch 10 is rotated until apertures 6 in the fitting 7 and the turret 5 are in register. A locking bolt 8 is then inserted in the apertures. and bracing struts 4 are bolted to the under surface of the seaplane wing or to the float framework.
Patent GB-460706-A (GB)
Title: Improvements in and relating to automatic firearms
IPC: F41A9/33
Filed: 1935-06-28
Abstract: 460,706. Automatic guns. DARNE, R. June 28, 1935, No. 18550. Convention date, June 29, 1934. [Class 92 (ii)] Relates to cartridge-feed, mechanism for automatic guns of the kind described in Specification 265,105, [Class 92 (ii)], in which a gas-operated action-slide 1 carries a pivoted gripper 5 for extracting a cartridge 4 from a belt disposed beneath the barrel and raising it into line with the breech with the aid of a further pivoted member 9 which supports the front of the cartridge. According to the invention, the parts 5a, 5b which grip the rear of the cartridge engage the extraction groove thereof and contact with faces 7a, 7b on the fixed casing to prevent displacement of the cartridge due to shock when the buffer 3a is struck. The gripper 5 is retained in the raised position shown by a spring 8 engaging a notch 5c, the spring being released by a cam surface 9b on the member 9 when this member strikes a pin 10 during the forward loading movement. Before this release, the cartridge is stopped by the chamber in an inclined position, an incline 6a on a tumbler 6 then raising the rear end of the cartridge into position to be engaged by the tilting breech block 2. The tumbler 6 is pivotally mounted on a lever 14 itself pivoted to the gripper 5 and its beak supports the rear end of the cartridge during extraction from the belt. A member 11 engaging the stop 10 to limit the forward movement is slidably carried by a pivoted member 12. After removing the breech block, the member 12 is raised to permit removal of the member 5 and parts carried thereby. The Specification as open to inspection under Sect. 91 describes also (1) with reference to Fig. 8 (Cancelled) a readily dismountable cam device 29 on the upper surface of the action slide 1 for imparting transverse reciprocating movement to the cartridge-belt feedslide 56. The cam device includes a projection 29b actuating a system of rods 27, 30, 26 during rearward movement of the slide 1 and a projection 29a for actuating the system in the reverse direction during forward movement of the slide ; (2) with reference to Fig. 6 (Cancelled), a device for preventing a doublefeed from the cartridge belt comprising a lever 57 pivoted to the belt feed-slide 56 and engaging the cartridge pocket 51 of the belt so that, only when a cartridge has been withdrawn, can the lever 57 rise to bring the belt feed-pawl 55 into feeding position. This subject-matter does not appear in the Specification as accepted.
Patent GB-1527447-A (GB)
Title: Method of preparing a sorbent for the extraction of free hemoglobin
IPC: C08F8/30
Filed: 1977-05-04
Abstract: 1527447 Purifying proteins; modified styrene/ divinylbenzene copolymers MOSKOV KHIMIKO-TEKHONOL INST IM D I MENDELEEVA and VTOROI MOSKOV GOSUDABSTVEN MEDITSIN INST IM N J PIROGOVA 4 May 1977 18637/77 Headings C3H and C3P In a method of preparing a sorbent for extraction of free haemoglobin, a starting modified polymer having amino groups and sulpho- or phosphonic groups is diazotized and then reacted with blood serum albumin or hapteglosin at a temperature of up to 40‹ C., with subsequent washing of the obtained sorbent from the protein. Ampholytes having macroporous and gel structures are preferred as starting polymers. Examples described the preparation of ampholytes based on styrene/ divinylbenzene copolymers which are modified with amino and phosphoine groups (Example 1) and sulpho groups (Example 2) diazotized before washing with distilled water. Preparative details of the copolymers are provided.
Patent GB-798012-A (GB)
Title: Recovery of phthalic and tertiary butyl-substituted phthalic acids
IPC: C07C51/42
Filed: 1955-06-28
Abstract: A process for recovering phthalic acids, defined as the three isomeric phthalic acids or the tertiary butyl substituted iso- and orthophthalic acids, from mixtures of ammonium salts and amides of these acids comprises acidifying with sulphuric acid an aqueous solution of a mixture of ammonium salts and amides of said acids to a pH in the range from about 2.5 to about 3.5, heating the acidified mixture to a temperature in the range from about 400 DEG  to about 500 DEG  F. under superatmospheric pressure sufficient to maintain a substantial part of the water in liquid phase, cooling the mixture to a temperature below about 250 DEG  F., adding a quantity of sulphuric acid to the cooled mixture sufficient to lower the pH of the mixture to a value in the range from about 2.5 to about 3.5, filtering the resultant mixture to separate a filter cake consisting essentially of phthalic acid, mixing the filter cake with sufficient water to form a slurry having a solids content from about 2 per cent to about 50 per cent by weight, heating the slurry to a temperature in the range from 350 DEG  to 500 DEG  F. under a superatmospheric pressure sufficient to maintain a substantial part of the water in liquid phase, cooling the heated slurry to a temperature below about 250 DEG  F. and filtering the cooled slurry to recover a filter cake consisting essentially of phthalic acids.  In a modified process the filter cake obtained in the first hydrolysis stage is slurried with a quantity of an aqueous solution of ammonium bisulphate or an alkali metal bisulphate sufficient to produce a slurry having a solids content in the range from about 2 per cent to about 50 per cent by weight, and characterized by a pH in the range from about 1.2 to about 1.8 and the slurry is heated to a temperature in the range from about 400 DEG F. to 500 DEG  F.  The mixtures of ammonium salts and amides employed as starting materials are obtained by heating xylenes or tertiary butyl xylenes with ammonium sulphate, a sulphide such as hydrogen or ammonium sulphide and water.  The process may be operated continuously or batchwise.  Examples are furnished and an apparatus for carrying out the process is described.  Specification 706,042 is referred to.
Patent GB-1509045-A (GB)
Title: Monitoring systems for video-signal modulation devices
IPC: G01R29/06
Filed: 1975-05-05
Abstract: 1509045 Transmission monitoring SIEMENS AG 5 May 1975 18679/75 Headings H4R and H4P In a video or data transmission system a D.C. level is removed from the signal and replaced by a reference level prior to SSB suppressed carrier modulation of a carrier. At the receiver the reference level is filtered out after demodulation and fed to a monitoring device. As described the D.C. level is removed by a filter 1 and the reference level fed in from a source UGL via a hybrid 2 before modulation of a carrier 5 in SSB suppressed carrier modulator 4. At the receiver the signal is demodulated at 5 using the output of a carrier regenerator 6, and the resulting D.C. level is fed to monitoring device 8.
Patent GB-180283-A (GB)
Title: Improvements in and relating to pontoon bridges
IPC: E01D15/14
Filed: 1921-07-11
Abstract: 180,283. Soc. Anon. des Forges et Chantiers de la MÚditerranÚe. May 20, 1921, [Convention date]. Bridges.-Pontoon bridges are constructed of floats each of which consists of a central part a, which supports the bridge flooring b and the longitudinal connecting beams, and two lateral parts a<1> removably connected at a<2>, a<3>. The central part may be subdivided by a longitudinal partition.
Patent GB-601468-A (GB)
Title: Improvements in or connected with machines or apparatus for straightening metal rods, bars and the like
IPC: B21D3/10
Filed: 1945-07-21
Abstract: 601,468. Rolling. MILLS, Ltd., EXECUTORS OF, J., and MACBETH, A. July 21, 1945, No. 18732. [Class 83 (iv)] Apparatus for feeding rods to a skew roll straightening machine &c. comprises a trough 4 reciprocated by a pneumatic cylinder 9. The trough is mounted in guides 5 adjusted by nuts 19 and is secured by a lug 11 to piston-rod 10. The rod is placed in the trough and a valve 14 operated to advance the trough towards the rolls.
Patent GB-244362-A (GB)
Title: Improvements in and connected with endless conveyors
IPC: B65G17/02
Filed: 1925-07-23
Abstract: 244,362. Finlayson, J. July 23, 1925. Flat endless-belt conveyers; belts modified for troughing. - The edges of an endless belt 5 of canvas, leather, rubber, &c. are connected at intervals to endless wire driving ropes 6 by clips 9. Each clip is passed over the folded edge of the belt and secured by a rivet 10. A stout endless wire 11 may be embedded in the folded edge of the belt with layers of rubber and the edge vulcanized. Distance pieces 12 may be placed between and secured to the ropes 6 if the belt is light. In a modification, Fig. 3, the belt and ropes are connected by metal straps 9<a> passed through the edge of the belt and around one of the outer strands of the rope.
Patent GB-296662-A (GB)
Title: Improvements in and relating to the manufacture of sulphuric acid
IPC: C01B17/84
Filed: 1928-06-28
Abstract: 296,662. Soc. GÚnÚrale MÚtallurgique de Hoboken, (Assignees of Petersen, H.). Sept. 3, 1927, [Convention date]. Sulphuric acid.-In the lead chamber process for making sulphuric acid, packed reaction towers are inserted between the separate chambers, and are irrigated with sulphuric acid rich in nitrogen oxides, or with a large amount of sulphuric acid containing nitrogen oxides such that the acid discharged from the towers still contains nitrogen oxides in amount at least equal to 0.5 per cent. calculated as nitric acid at 36‹ BÚ. The amount of nitrogen oxides contained in the discharged acid mav be equal to or higher than that contained in the introduced acid. The acid is introduced at a temperature not above 35‹ C. The Specification as open to inspection under Sect. 91 (3) (a) states also that a reaction tower may be inserted between the Glover tower and the first chamber. This subject-matter does not appear in the Specification as accepted.
Patent GB-1276950-A (GB)
Title: Apparatus for manufacturing conveyor belts
Inventor: BONGERS HENDRIKUS JOHANNES
IPC: B29D29/06
Filed: 1970-04-21
Abstract: 1276950 Conveyer belt manufacturing apparatus SIEMPELKAMP GmbH 21 April 1970 [30 April 1969] 18872/70 Heading B5N Apparatus for manufacturing a reinforced conveyer belt 1 from rubber belting or synthetic plastics belting comprises a preparation station 2 comprising (A) a spool stand 7 for spools 21 of reinforcing cables 8, a cable reservoir 9, one or more clamping devices 10a and 10b and a cable tensioning apparatus 11 which may be an hydraulic apparatus equipped with hydraulic cylinder 24, (B) storage and unrolling drums 12 for fabric or fibrous fleece reinforcing inserts made from cotton, synthetic material or glass with, if applicable, a spreading installation 13 and an impregnating installation 14 and (C) a coating station, on a common travelling chassis 18, comprising storage and unrolling drums 15 and 15a for the belting and an associated preliminary press 16 and/or pressure rollers 17 for applying a coating over the reinforcing cables and/or inserts, a platen press 3, pulling equipment 4 and reeling-up equipment 5, additional clamping devices 19 before and after the platen press working in conjunction with the clamping device(s) of the spool stand, the spool stand being capable of functional separation from the rest of the installation and the coating station being capable of working separately or simultaneously with the spool stand and with the storage and unrolling drums for the fabric or fibrous sleeve reinforcing inserts. The apparatus may also comprise slitting apparatus 20 consisting of front and back supports 25 and 26, slitting knife 27 which may be heated and pressure roller 28 which presses the conveyer belt 1 from above against the knife 27 to slit it longitudinally into narrower bands whilst it is being pulled through under tension.
Patent GB-931651-A (GB)
Title: Improvements in drilling tools
Inventor: HALL REGINALD
IPC: B23B47/34
Filed: 1959-06-02
Abstract: 931,651. Bearings. TECALAMIT Ltd. July 27, 1960 [June 2, 1959], No. 18882/59. Class 12 (1). [Also in Group XXII] In a drilling-machine the tool-holder 10 rotates in a phosphor bronze bearing 11, the thrust being taken by a ball or roller bearing 6. The race 7 of the bearing has a groove 40 for the balls or rollers 41, interrupted by partspherical recesses 42, the spacing of which is the same as that of the balls or rollers, so that as the tool-holder rotates the balls or rollers move intermittently into the recesses so that pressure on the tool is relieved. The driving shaft 18 is located in phosphor bronze bearings 19, 20 and the bearings are lubricated through normally plugged holes 16, 25 and 43.