baber/WOPTO huggingface dataset:
Patent GB-271916-A (GB)
Title: Improvements in and relating to centrifugal filtering apparatus
IPC: B04B7/18
Filed: 1926-10-05
Abstract: 271,916. Empson, A. W. Oct. 5, 1926. Density and strainer separators combined.-A combination separator has a fluid pressure device to vary the action of the filter and has means for regulating the action of the fluid pressure device. The fluid to be treated is admitted through the pipe 5 and the coarser material is separated in the annular space between the drum 2 and the filter 3. When two liquids are to be separated or a carrier liquid is used, the separated matter passes out through the opening 7, but this opening can be sealed when the machine is to be used as a clarifier. The liquid to be filtered passes through the filter 3 and escapes through the opening 8. The filter is formed of a continuous paper strip 9 wound edgewise between perforated cylinders 10, 11 and secured by an adhesive or otherwise. The strip may be treated by passing it through a bath 18 and through a drying chamber 19. The regulating device varies the pressure on the completed filter pack and includes an expansible and contractible tube 32 on the top of the filter in connection with the annular chamber 30 of the pump 4 carried by the main shaft 1. The pump has two plungers 21 normally raised by springs 22 and supporting a swash plate 23 loosely mounted on the shaft. A grooved extension of the plate accommodates a brake band 24 controlled by the hand wheel 27. When the band is slack the plate rotates with the shaft but when the band is tightened the plate is locked and the plungers are caused to reciprocate. Air is admitted through the ports 28 and is compressed in the chamber 30 and tube 32; this increases the pressure on the filter pack. A leak or relief valve 33 in the chamber 30 is operated by the hand wheel 38 and forked lever 35.
Patent GB-341505-A (GB)
Title: Improvement in two-stroke internal combustion engines
IPC: F01L5/06
Filed: 1929-10-11
Abstract: 341,505. Cylinders. BROWN, W. D. S., Fair Rising, Fairlight Cove, near Hastings, Sussex. Oct. 11, 1929, No. 30829. [Class 7 (ii).] In engines compressing the charge in the crank case, exhaust takes place through a number of ports 26 when uncovered, by a piston extension 20, which clears a re-entrant head 23 when the piston is at the inner end of its stroke. Inlet and delivery ports 36, 27 for the pump space are uncovered by the skirt of, and ports 32 in, the piston, one of which ports also exposes the points of sparking-plug 33 at the other end of the piston stroke. Specification 26637/13, [Class 7 (ii), Internal-combustion engines, Arrangement &c. of], is referred to.
Patent GB-303878-A (GB)
Title: Improvement in rotation mechanism for rock drills
IPC: E21B6/06
Filed: 1928-10-24
Abstract: 303,878. Ingersoll-Rand Co., (Assignees of Hulshizer, G. W.). Jan. 12, 1928, [Convention date]. Percussive drills.-The twist bar L is held from rotating on the rearward stroke of the piston by rollers b which are jammed against the ring E by a cam P on the twist bar. The rollers are mounted in slots in a cup S which surrounds the cam and has a cover plate U provided with depending lugs d which limit the movement of the cam, being formed for this purpose with obtuse angled inside faces g.
Patent GB-485167-A (GB)
Title: Improvements in and relating to the treatment of corn for the production of starch and related products
IPC: C08B30/04
Filed: 1936-11-11
Abstract: In making starch, comminuted maize in water is subjected to germ and slop separations, and the mixture of gluten and starch is centrifuged to produce overflow and underflow streams, one of these streams being a flotation in which the gluten separates as a froth and the starch subsides, the de-aerated liquid being returned to the process.  The mixture may first be centrifuged to separate some gluten and the starch underflow then subjected to centrifuging and de-aeration.  If desired, the fine slop separation may be effected after the first centrifuging.  The process is illustrated by a flow sheet. Specification 485,166 is referred to.  The Specification as open to inspection under Sect. 91 comprises also the preliminary tabling of the starch.  This subject-matter does not appear in the Specification as accepted.
Patent GB-777742-A (GB)
Title: Improvements in or relating to exhaust assemblies of gas-turbine engines
Inventor: KENT NELSON HECTOR
IPC: F01D25/30
Filed: 1954-10-26
Abstract: 777,742. Gas turbine engines. ROLLSROYCE, Ltd. Oct. 20, 1955 [Oct. 26, 1954], No. 30911/54. Class 110 (3). A gas turbine exhaust structure having an outer annular wall and a bullet supported coaxially within the outer wall has means for allowing relative radial expansion which comprises radially projecting members on the bullet engaging radial sockets in the outer annular wall which is divided into a number of portions which meet in surfaces passing through the sockets. The cone or bullet 10 has a number of fairing members 11 which extend across the working fluid passage 12 and terminate in end walls 11a which lie close to the inner surface of the outer wall 13. Each end wall 11a has a stub member 14 projecting radially from it and engaging sockets in the outer wall 13. The outer wall 13 is made of two frusto-conical parts 13a, 13b bolted together by flanges 15a, 15b. The plane of abutment of the flanges is arranged to be in the plane containing the axes of the stub members 14 and each flange has at circumferentially spaced points a number of thickened portions 15c with recesses 16. The recesses 16 in the flanges 15a, 15b register to form sockets to receive the stub members 14. The outer ends of the sockets are closed by cover-plates 18. The stub members may be replaced by supporting struts extending through the bullet from one side to the other or to a backbone structure on the axis of the bullet.
Patent GB-733407-A (GB)
Title: Improvements in body exercising machine
IPC: A61H23/02
Filed: 1953-11-09
Abstract: 733,407. Massage appliances. MACK, L.LA F. Nov. 9, 1953, No. 31017/53. Class 81 (2). A massage table comprises an oscillatable massage element mounted on an intermediate cradle carried on a main frame. The main frame 22, Fig. 3, carries a driving motor 110 and supports the cradle on four pivoted links 31, while a main patient support, comprising padded members 42, 41 and a central pad 50, are adjustably attached to it. Four massage elements 53, 54, two at each side, are carried on levers 77 pivoted to the cradle at 71 and may be oscillated through linkage from a crank 90 driven by the motor. By displacing the pivotal point of a triangular member 82, forming part of the linkage, the amplitude and phase relationship of the members 53, 54, relative to the crank 90, may be varied between zero and a maximum, the setting being determined by a lever 95 associated with each particular massage member 53. A locking device is also provided, see Fig. 14 (not shown), by means of which the patient support and cradle are locked to the crank 90, so that the support oscillates as a whole. In a modified form, see Fig. 18 (not shown), one electric motor oscillates the. cradle as a whole and one of two separate motors oscillate each transverse pair of massage elements, these being so arranged as to move with similar or opposite motions.
Patent GB-520599-A (GB)
Title: Improved lifting rotor for aeronautical purposes
IPC: B64C27/30
Filed: 1938-10-26
Abstract: 520,599. Aircraft lifting rotors. KING- STON, P. F. Oct. 26, 1938, No. 31020. [Class 4] A lifting rotor for aircraft comprises two vertically spaced horizontal hoops connected by tangent spokes to hubs on a common central spindle a series of inclined overlapping planes B being secured between the two spoke systems to give lift when the hubs are rotated by or around the spindle. The hoops can be brought together to flatten the overlapping planes one rear corner of each plane being capable of sliding on its supporting spoke to accommodate the movement. The other free rear corner of each blade lies beneath the spoke when in operative position.
Patent GB-276867-A (GB)
Title: Improvements in or relating to electric inductances and transformers
IPC: H01F27/00
Filed: 1926-12-07
Abstract: 276,867. Wildy, E. L., and London Electric Wire Co. & Smiths, Ltd. Dec. 7, 1926. Regulating transformers. - A pair of inductance coils or transformers, of the kind enclosed by a metal shield, are arranged as a single unit with a change-over switch so that either coil or transformer can be employed at will. In the construction shown, two coils or transformers a, b are centrally mounted on a rotatable spindle c within two metal shields d, e. A disc j, of insulating material, carried by the spindle c has a number of peripheral contacts k extending on opposite sides thereof alternately and in electrical connection with the coil or transformer in proximity thereto. The spindle, which forms a metallic connection between the two shields d, e, can be rotated by an external hand lever h so as to bring either set of contacts k in contact with spring contacts r of external terminals g on a fixed annulus f of insulating material between the shields d, e. Metal discs s are adjustably arranged on the spindle so as to allow the inductance of a and b to be varied. A number of units may be arranged in a row with their levers h coupled together so as to operate simultaneously.
Patent GB-604005-A (GB)
Title: Improvements relating to the production of a preparation containing lactic-acid bacteria
IPC: A61K35/747
Filed: 1945-11-20
Abstract: A therapeutic preparation of lactic-acid bacteria, preferably lactobacillus acidophilus free from casein, is obtained by inoculating sterile skim milk with suitable pre-cultures of the lactic acid bacterium desired, incubating for example for 24 hrs. at 38 DEG C. and then diluting with sterile water, preferably 4.5-5.0 parts, and adjusting the pH of the liquid to 4.2-4.3 by means of sterile hydrochloric acid, provided it did not previously possess this pH value.  The precipitated casein is allowed to settle and separated from the superincumbent bacterial liquid for example by decantation or filtration.  The latter is centrifuged to concentrate the bacteria as a light yellow powder which can be used as such or when distributed in a suitable medium such as milk, chocolate and the like.  The Specification as open to inspection under Sect. 91 refers to the separation of the casein by centrifuging prior to the concentration of the bacteria.  This subject-matter does not appear in the Specification as accepted.
Patent GB-230196-A (GB)
Title: Improvements in the construction of the hulls or bodies of boats, vessels and analogous metal structures
IPC: B63B3/00
Filed: 1923-12-13
Abstract: 230,196. Saunders, S. E. Dec. 13, 1923. Ships. - The hulls of flying-boats and other structures such as fuselages, nacelles, struts, spans, &c. are composed of a series of strips a of channel or U-section placed side by side with. the flanges of adjacent strips in contact and connected together. The strips extend longitudinally of the structure and are strengthened by internal cross frames e secured by tongues f which project from the flanges b of alternate strips a. The strips are narrowed or tapered in width where the surface of the hull or body becomes reduced and all the flanges are on one side of the structure.
Patent GB-492935-A (GB)
Title: Extensible roller chain
IPC: B62M9/10
Filed: 1937-11-16
Abstract: 492,935. Driving-chains. POLLAK, R. Nov. 16, 1937, No. 31433. Convention date, Nov. 16, 1936. [Class 24] The links of a roller chain are connected by bushes traversed by rivets for connecting the adjacent links, the rivets having sufficient clearance to permit shortening of the chain due to the pressure of an endless spring mounted on the chain or of a number of separate springs distributed along the chain. In the form shown, links 1 side by side are connected in pairs by bushes 2 forming bearings for rollers 4 and having cylindrical apertures 6 to receive rivets 5, which also connect together the adjacent outer links 7. The curvature of the rivets 5 at their contact surfaces corresponcls to the inner periphery of the bushes 2 in the apertures 6 of which they are movable. An endless spring 9 is disposed about the chain and maintained in position by extensions 8 on the links 1. In a modification several short springs are used, each connecting links a short distance apart.
Patent GB-1518197-A (GB)
Title: Disperse monoazo dyestuffs
IPC: C09B29/02
Filed: 1975-07-28
Abstract: 1518197 Disperse monoazo dyes IMPERIAL CHEMICAL INDUSTRIES Ltd 7 June 1976 [28 July 1975] 31541/75 Heading C4P Novel disperse monoazo dyestuffs have the formula wherein U is hydrogen, chlorine, bromine or nitro, V and W are each independently chlorine, bromine or nitro, n is 1 or 2, Z is hydrogen, lower alkyl or lower alkoxy, Y is hydrogen, lower alkyl, lower alkoxy, chlorine, bromine, -NHCOX<SP>1</SP> or -NHSO 2 X<SP>2</SP>, X<SP>1</SP> is lower alkyl, lower alkoxy, amino or N-lower alkylamino, X<SP>2</SP> is lower alkyl, A<SP>1</SP> and A<SP>2</SP> are each independently lower alkylene, and R<SP>1</SP> and R<SP>2</SP> are each independently lower alkyl or hydroxyalkyl containing from 2 to 4 carbon atoms. The dyes are prepared by diazotization and coupling, and are used to give yellow to blue shades with cellulose acetate, nylon and aromatic polyesters; the latter may also be coloured in the mass.
Patent GB-1098409-A (GB)
Title: Refractionometer
Inventor: WAYLAND STANLEY ALBERT
IPC: G01M11/00
Filed: 1965-07-23
Abstract: 1,098,409. Vertex refractionometer. R. RODENSTOCK [trading as OPTISCHE WERKE G. RODENSTOCK]. July 23, 1965, No.31579/65. Heading G2J. A vertex refractiometer comprises an axially adjustable support for the lens to be measured to compensate for the variation of the position of the lens vertex in accordance with the lens curvature. As shown in the Figure, a tube 1 connected to the vertex refractiometer has a screw-thread 4 and carries a measuring lens 2 and an adjustable ring 5 fixed to a plate 6 forming a support 7 for the lens to be measured, the plate 6 has a scale 8 which is set against a fixed index mark 9 in accordance with the curvature of the lens to be measured, whereby the vertex of the lens is brought to the required position on the optical axis.
Patent GB-485572-A (GB)
Title: Improvements in and relating to the hulls of motor-boats
IPC: B63B1/20
Filed: 1936-11-18
Abstract: 485,572. High-speed boats. SPURR, E. Nov. 18, 1936, No. 31586. [Class 113 (ii)] A high-speed boat has a profile in the form of a cambered aerofoil, and has a substantially straight leading edge 1. The undersurface 4 rises slightly as it approaches the bow. In a modification the undersurface is recessed towards the stern to form a step. In further modifications the side surfaces 3 are flared outwardly or rounded.
Patent GB-785898-A (GB)
Title: Improvements in draught excluding devices for doors or windows
IPC: E06B7/23
Filed: 1955-11-04
Abstract: 785,898. Draught excluders. KNAAP, J. Nov. 4, 1955, No. 31590/55. Class 20(3) A draught excluder for doors and windows comprises a securing strip having a web portion 1, Fig. 5, for attaching it to a surface and a hollow beading 2 along one edge which encloses the thickened portion 4 of a weather strip, the latter having a resilient tongue 6 which projects outwards to engage the co-operating surface. As shown applied to a window sill the beading 2 forms a stop in association with the face 14 of a water shield 13. Another shield 15 is provided on the window. In a modification, Fig. 2, two beadings 2, 3, are provided, one of which houses the portion 4 and the other of which forms a stop. The draught excluder may be mounted with the positions of the beadings 2, 3, interchanged. The excluder is applicable to sash windows.
Patent GB-1271478-A (GB)
Title: Process for the alkylation of organosilicon compounds
Inventor: BAKASSIAN GEORGES
IPC: C07F7/08
Filed: 1970-06-30
Abstract: 1,271,478. Alkylation of silanes and siloxanes. RHONE-POULENC-S.A. 30 June, 1970 [1 July, 1969], No. 31757/70. Headings C3S and C3T. Compounds containing a silicon to chlorine bond are alkylated with a zinc alkyl in the presence of an N-hydrocarbyl substituted pyrrolidone, preferably N-methyl pyrrolidone. Starting materials are suitably organochlorosilanes, -polysilanes and -polysiloxanes. Examples describe the preparation of trimethylvinylsilane, dimethylvinylbutoxysilane, dimethylvinylchlorosilane, methyldiphenylbutoxysilane, dimethylvinylpropylsilane, trimethyl-(chloromethyl)-silane, hexamethyldisiloxane, dimethylethylphenylsilane and trimethylsilane.
Patent GB-410127-A (GB)
Title: Improvements in or relating to machines for making steel shavings from wire
IPC: B23P17/06
Filed: 1933-11-14
Abstract: 410,127. Making steel shavings. GRIESINGER, G., 5, Goethestrasse, Feuerbach, St³ttgart, Germany. Nov. 14, 1933, No. 31761. Convention date, Nov. 14, 1932. [Class 83 (iii).] Planing.-In a machine for making steel shavings from wire passing over grooved rollers so that it runs in parallel loops past one or more common knives, the wire runs are set individually with regard to the knives by means of individual setting supports. A pair of grooved drums a, b are mounted with their axes parallel and the wire d passes from a winding-drum around the two drums in a series of turns to a second winding-drum. The front runs h .. m of the wire move over a table e past a broad serrated knife f followed by a plain knife g which subdivides the shavings made by the first knife. In order to remove substantially the same thickness of shaving from each run of wire, the table is fitted with a number of wire-supporting members n, Fig. 4, mounted on strips o ... s of progressively increasing thickness so that the wire is reduced as far as possible in a single passage through the machine. Any desired number of pairs of knives may be used.
Patent GB-1400368-A (GB)
Title: Process for removing fuel ash from a precipitator system
IPC: B01D21/00
Filed: 1973-07-04
Abstract: 1400368 Centrifugal separation NEW ENGLAND POWER CO 4 July 1973 [13 July 1972] 31791/73 Heading B2P In a process for removing fuel ash from the bottoms of separating equipment, e.g. of electrostatic precipitators, scrubbing towers or ash pits, water is circulated through the bottoms to carry off the ash, at least part of the ash-containing water is passed through a hydrocyclone separation stage to produce a major overflow fraction of reduced solids content and a minor underflow fraction of increased solids content, and the water withdrawn from the bottoms less the underflow fraction is recirculated back through the bottoms at a rate to maintain the solids concentration in the water exposed to the ash below that at which substantial settling out of solids will occur. Preferably the recirculation is continuous, and the underflow from the hydrocyclone separation stage is subjected to a secondary stage hydrocyclone separation from which the underflow may be subjected to a tertiary stage solids separation in one or more filters or continuous centrifugal separator, the overflow from one or both further separation stages being recirculated. Alternatively, water may be intermittently circulated to the separating equipment bottoms. The bottoms may be filled with water and emptied and flushed successively after each has reached a predetermined maximum concentration. The bottoms may be equipped with mechanical agitators to prevent solids settling and the agitators may be equipped to signal for emptying and flushing when the torsional resistance of the agitator reaches a predetermined maximum. Alternatively, the bottoms may be emptied and flushed in a predetermined timed sequence. The underflow of any stage may be treated for recovery of valuable components of the ash, e.g. by chemical precipitation or agglomeration. Where valuable components tend to concentrate in the recirculating water, recirculation flow is continuously or intermittently diverted from the primary stage for treatment for the recovery of the components as by chemical precipitation. Diagrammatic flow sheets of the process are described.
Patent GB-721989-A (GB)
Title: Improvements in and relating to locating mechanisms for use with switches
IPC: H01H19/11
Filed: 1952-12-15
Abstract: 721,989. Rotary switches. NAIMER, H. Dec. 15, 1952 [Jan. 22, 1952]. No. 31794/52. Class 38 (5). Mechanism for locating a rotatable member such as a shaft used in the actuation of a rotary switch comprises rollers 4 mounted on bearing members 6, which rollers ride over projections on a further member such as a star wheel moving as it does so against the force of resilient members such as springs 7, in a direction determined by guide members such as plates 10 with slots 9 into which the roller axles 5 project, the play of the rollers in the bearing members in the directions perpendicular to their direction of movement relative to the guide members being greater than their play in the guide members in the same direction. Thus as shaft 1 rotates, movement of star wheel 3 causes the rollers 9 to move radially from the shaft, all the circumferential thrust being taken by the edges of the slots 9 and more being transmitted to the springs 7 through the bearing members 6. These bearing members each comprise two plates joined at the ends by bridges 6' between which and recesses in the housing 2 the springs 7 are compressed. In a modification, Figs. 6-8 (not shown) guide members with slots at each end are mounted centrally on the shaft, and carry bearing members at each end which are urged apart by springs compressed between them, rollers on the bearing members engaging a forced undulating cam surface on the casing. Bearing members may be disposed at 90 degrees apart, the springs may be in tension or replaced by rubber members.
Patent GB-779451-A (GB)
Title: Shut-off valve
IPC: F16K41/10
Filed: 1952-12-16
Abstract: 779,451. Valves. SCHMITZ, F., and SCHULTEMATTLER, H., [trading as HOCHDRUCK - DICHTUNGS - FABRIK SCHMITZ & SCHULTE]. Dec. 16, 1952 [May 14, 1952], No. 31870/52. Class 135. In a valve having a diaphragm 2 clamped between the valve body 1 and its cover 3 in lieu of a stuffing-box, the diaphragm is formed with a hollow frusto-pyramidal rubber extension 4 whose side and bottom faces are engageable with the valve body on rotation of a screwthreaded spindle 5 which carries a similarly shaped, frusto-pyramidal metal core assembly. The core assembly comprises an inner part 6 in which the spindle rotates and a transversely split outer shell 7 urged by the part 6 on further rotation of the spindle to expand the extension 4. A spring 9 urges the part 6 upwardly.
Patent GB-861198-A (GB)
Title: Improvements relating to bi-pin electric lamp holders or sockets
IPC: H01R33/08
Filed: 1957-10-11
Abstract: 861,198. Two-part couplings. COMPAGNIE DES LAMPES. Oct. 11, 1957 [Oct. 12, 1956], No. 31883/57. Class 38 (1). A bi-pin lamp-holder particularly for fluorescent lamps incorporating an integral reflector which require to be located at a plurality of angular positions, comprises an insulated body 1 having a. slot 2 and provided with curved contact members 9 having diametrically opposite indentations 10 which co-operate with the lamp pins, thus angularly locating the lamp. In a modification, Fig. 3, a centre-insulated rotatable paddle-wheel boss 16 is provided into which the lamp pins enter, the boss having a diametral slot 17 into which the lamp pins are inserted. On rotating the lamp the paddles rub against the indentations 10, thus moving the contact members outwards and relieving the lamp of the bending stress on the pins. This embodiment may also have contacts without indentations, the lamp being located by a clock stop mechanism such as a spring-urged ball engaging with indentations on the boss. Specification 537,886 is referred to.