baber/WOPTO huggingface dataset:
Patent GB-1163091-A (GB)
Title: Improvements in or relating to the production of Hexenes
Inventor: HAMBLING JAMES KEITH
IPC: B01J23/04
Filed: 1966-02-11
Abstract: 1,163,091. Hexenes; isoprene. BRITISH PETROLEUM CO. Ltd. 29 Dec., 1966 [11 Feb., 1966], No. 6118/66. Addition to 962,255. Heading C5E. Hexenes are produced by contacting a mixture of ethylene and one or more butenes at a temperature between 40‹ and 100‹ C. with a catalyst consisting of or containing elemental lithium and/or sodium dispersed on an anhydrous potassium compound, e.g. KOH, K 2 CO 3 , K 2 SO 4  or a halide or silicate of potassium. The main products are 3-methyl-pentene- 1 when butene-1 or -2 is used, and 2-methylpentene-1 when isobutene is used. The products may be converted to isoprene by first isomerizing to give isoprene precursors, i.e. methyl pentenes capable of being demethanated to isoprene by pyrolysis.
Patent GB-415734-A (GB)
Title: Automatic firearm
IPC: F41A5/24
Filed: 1933-02-28
Abstract: 415,734. Automatic smallarms. SCHWEIZERISCHE INDUSTRIE GES., Neuhausen, Schaffhausen, Switzerland. Feb. 28, 1933, No. 6122. Convention date, Feb. 10. [Class 119.] Relates to automatic guns of the kind operated by the recoil of the cartridge case and in which a tilting breech-block 3 does not engage its locking abutment 24 until the cartridge case has recoiled and momentum has been imparted to a striker-post member 4 which moves relatively to the block to unlock it by interengaging inclines 13, 18<1> and then carries the block rearward to open the breech. According to the invention, the breech-block and striker-post slide in a fixed casing 2 and the striker-post engages a tooth 18 on the breech block to unlock it from a fixed abutment 24 on the wall of the cartridge-ejection opening 22. Further, the striker-post, during the last part of the closing movement, engages the breech block by a surface 17 at right angles to the direction of movement. The return spring 7 is located in a bore of the striker-post and engages over a pin 6 carried by the breechclosing cap 5.
Patent GB-1348093-A (GB)
Title: Dialkyl-4-hydroxyphenylcarboxylates of tris-hydroxyalkyl-iso cyanurate
IPC: C08K5/3477
Filed: 1972-02-10
Abstract: 1348093 Dialkyl - 4 - hydroxyphenylcarboxylates of tris(hydroxyalkyl)isocyanurate CIBAGEIGY AG 10 Feb 1972 [25 Feb 1971] 6301/72 Heading C2C [Also in Division C3] Novel dialkyl - 4 - hydroxyphenylcarboxylates of tris(hydroxyalkyl) isocyanurate having the general formula wherein R<SP>1</SP> and R<SP>2</SP> are (C 1 -C 4 ) alkyl groups or R<SP>2</SP> is hydrogen; n is 1 or 2 and x is an integer from 1 to 6 are prepared either by (a) reacting a tris(hydroxyalkyl)isocyanurate with an acid of the formula or with an acid halide or anhydride thereof, (b) transesterifying an alkyl ester of the above acid with a tris(hydroxyalkyl)isocyanurate, (c) reacting an alkali metal salt of the above acid with a tris(haloalkyl)isocyanurate, or (d) reacting a tris(alkali metal)cyanurate or isocyanurate with a haloalkyl ester of the above acid. The novel compounds may be used as stabilizers for organic materials.
Patent GB-1160356-A (GB)
Title: Improvements in or relating to Methods for Preparing Starch Products.
IPC: C08B30/12
Filed: 1968-02-08
Abstract: 1,160,356. Degraded cross-linked starch. NATIONAL STARCH & CHEMICAL CORP. 8 Feb., 1968 [17 Feb., 1967], No. 6384/68. Heading C3U. A degraded cross-linked starch product is made by (a) reacting starch with a cross-linking agent to form cross-linked intact starch granules having a granule swelling power (GSP) of 10-31; (2) swelling the resultant granules; (3) reacting the swollen granules, preferably at a pH of 3-10 and a temperature of 20- 100 C., with an enzyme capable of splitting the 1-4 links in the amylopectin moeity but not the 1-6 links, and which is not capable of splitting the linkages between any substituent group bonded to the amylose or amylopectin moiety; and (4) isolating the product. The GSP measures the degree of cross-linking by the amount of hydrated swollen paste per gram of anhydrous starch formed by cooking in water under certain specified conditions. The enzyme is preferably beta-amylase, but alpha - 1,4 - glucosidase and phosphorylase are also suitable. Many cross-linking agents are specified, and the cross-linked starch may also contain ether or ester groups. In the examples, the following are used: epichlorhydrin optionally followed by acetylation; adipic acid/ acetic anhydride mixture; phosphorus oxychloride optionally followed by treatment with propylene oxide to introduce hydroxypropyl groups; and glycine/NaOCl reagent. Conventional swelling procedures are used. Preferred starches are the " waxy " types having a high amylopectin content. The products are stable and resist syneresis and gelling at low temperatures.
Patent GB-704453-A (GB)
Title: Nautical light teaching device
Inventor: HUTCHINSON RICHARD DENNIS POWE
IPC: G09B19/00
Filed: 1950-03-15
Abstract: 704,453. Teaching signalling. WILLS, O. S. D: June 6, 1951 [March 15, 1950], No. 6531/50. Class 118 (2). A model for teaching the recognition of lights carried by vessels at sea comprises a base member a, representing the vessel which is turnable about a vertical axis, and which carries a fore mast c, two members d', d<SP>2</SP> to simulate halyards, a main mast e and two short masts at bow f and stern f<SP>3</SP>. Each of the masts carry electric light bulbs one above the other supplied by parallel electric circuits from a switch or plug board suitably marked so that selected combinations of lights can be lit at will to represent the different nautical combinations. Batteries are contained inside the base a. Additional lights at port g<SP>2</SP>, starboard, and at stern g are provided on the deck and have masks g<SP>3</SP>, g', g' and g' which hide the lights from certain directions and represent obstructions by the structure of a real vessel. Masks d, e<SP>2</SP> are provided on masts c and e for a similar purpose. Alternatively, coloured members may be suspended from hooks J instead of the electric bulbs. The model may be fitted in a case which serves both to house it when not in use and as a turn-table in use.
Patent GB-234932-A (GB)
Title: Improvements in foundry moulding machines
IPC: B22C11/00
Filed: 1924-03-14
Abstract: 234,932. Caley, E. C. March 14, 1924. Moulding - machines. -A support for a projector moulding- machine comprises a horizontal frame F hung by ball-headed bolts H from four vertical rods D, pivoted to cross members C pivoted to a rigid frame A. The frame may be suspended from a crane or mav travel on an overhead track. The vertical rods are tied by members J and carry balance weights K at their upper ends. Ball or roller bearings may be provided at the various pivotal joints. The sand is delivered to the moulding machine from a hopper positioned above the frame, through a flexible tube.
Patent GB-406483-A (GB)
Title: Improvements in and relating to systems of electric motor control
IPC: B65H18/14
Filed: 1933-03-04
Abstract: 406,483. Control of several D.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London..- (Assignees of Shoults, D. R.; 318, Charles Street, Scotia, New York, U.S.A.) March 4, 1933, No. 6651. Convention date, March 5, 1932. [Class 38 (iii).] The motor 30 operating calender rolls 11, and motors 15, 16, driving a winding roll 12 are all supplied from a generator 25 and varied in speed by varying the excitation of the generator. An auxiliary generator 35 is connected in series with the motors 15, 16, and is excited by a field 37, carrying the current of the motor 30, and a separately excited field 36 varied by means of a carbon pile resistance 38, in accordance with the current of the motors 15, 16. In this manner the tension in paper strip 10 passing between the rolls is maintained constant both during running and at standstill.
Patent GB-639835-A (GB)
Title: Improvements relating to trays
IPC: A47J39/02
Filed: 1947-03-10
Abstract: 639,835. Trays ; tables. JAMES, D. M. March 10, 1947, No. 6664. [Classes 52 (iii) and 128] In a tray of the type having recesses or ridges 2 in the surface for positioning utensils and cutlery electrical heating elements 4 are housed within the tray and legs 8 collapsable beneath the tray are provided for converting the tray into a table. As shown in Fig. 2, heating elements 4 are housed in a cavity 3 on the undersurface and may be adapted for ready removal. The legs 8 pivotally mounted at 7 are held in closed position by a catch 9. In extended position of the legs, as shown in Fig. 4, an extension 10, secured to or formed integral with the pivot 7, engages a recess 11 at the end of a leaf spring 12 secured at the other end to the undersurface of the tray. The legs may be provided with castors or runners to convert the table into a trolley or dinner wagon.
Patent GB-694435-A (GB)
Title: Sink and like strainer
IPC: E03C1/264
Filed: 1950-03-20
Abstract: 694,435. Waste pipe strainers. PALLISER, L. March 9, 1951 [March 20, 1950], No. 6822/50. Class 26 A waste pipe strainer A designed to fit in the existing waste outlet B in such a manner that the original waste plug will still fit the waste outlet when the strainer rests on the end of the trap elbow D, has resilient strengthening flanges C at each end.
Patent GB-803653-A (GB)
Title: Improvements in and relating to high frequency apparatus
IPC: H03J5/28
Filed: 1955-03-09
Abstract: 803,653. Mechanical switches, without quick action. OAK MFG. CO. March 9,1955 [March 9, 1954], No. 6919/55. Class 38 (5). [Also in Group XL (c)] A switched tuner (e.g. for television reception) comprises a plurality of rotary switches, each of which comprises a stator having at least two projections, one of said projections being located in an aperture in the chassis on which the tuner is mounted and the other of said projections being located in an aperture in a bar which is fixedly mounted with respect to the chassis. As shown, the apparatus comprises a chassis 10 having a main shelf 11 and rear and front panels 12, 13. A shaft 17, having flattened portions whereby the self-aligning rotor portions of the rotary switches are coupled to the shaft as described in U.S.A. Specification 2,186,949, is journalled in the panels 12 and 13. As shown in Fig. 4, the stators 21 of the rotary switches comprise extensions 22, 23; the upper extensions 22 being located in apertures in the shelf 11 and the lower extensions 23 being located in apertures in a bar 15 which is connected between the panels 12 and 13 and serves for reinforcement. Circuit elements may be carried on the stator sections 21 as indicated in Fig. 1. A variable capacitor, forming the subject-matter of divided Specification 803,654, [Group XXXVI], is provided for fine tuning; this is operated by a sleeve 30 surrounding the shaft 17.
Patent GB-728546-A (GB)
Title: Improvements in the independent suspension of the steered wheels of motor vehicles
IPC: B60G21/055
Filed: 1953-03-13
Abstract: 728,546. Spring suspensions; preventing lateral canting. PORSCHE, F. March 13, 1953 [April 4, 1952], No. 6950/53. Class 108(2). In an independent wheel suspension for steered wheels of motor vehicles having longitudinal link members influenced by springs and guided in a verticle plane by shock-absorbers, one or two transverse strut members acting as torsion bars each bears against the vehicle frame and at one end or at both ends bears against the longitudinal link members. In the arrangement shown, in which wheel carrying arms 5, 5 are each pivotally connected by means of rubber bushes to a vehicle frame 1 and in which each wheel is carried by a stirrup member 7 pivotally connected to its respective arm, the stirrup member 7 is fixed to a shock-absorber 8 suspended from the frame. The arms are braced laterally by torsion bar springs 10, 11 pivotally connected to the frame 1 and fixed in brackets 18, 19 of the respective arms. A torsion bar stabilizer 20 is connected between the pivotal connections of the arms 5, 5. In another arrangement (Fig. 3, not shown), a torsion bar connected between the pivotal connections of the arms to the frame and clamped centrally thereof acts as a main suspension spring and a stabilizer rod connected at its ends to the respective wheel arms is cranked at its mid-point where it formed with an enlargement and is supported on the frame in a rubber-filled casing. In a similar arrangement (Fig. 4, not shown), the main suspension spring comprises a pair of torsion rods disposed side-by-side in a horizontal plane and extending from one side of the frame to the other, one end of each rod being secured to the frame and the other end being secured to the adjacent wheel arm. In another arrangement (Figs. 5 and 6, not shown) the main torsion rod suspension springs are replaced by a coil spring surrounding each shock-absorber.
Patent GB-1134072-A (GB)
Title: 3-unsubstituted steroids
Inventor: ELLIS BERNARD
IPC: C07J1/00
Filed: 1966-02-17
Abstract: 1,134,072. 3-Unsubstituted-4-acyloxy-#<SP>3,5</SP>- steroids. BRITISH DRUG HOUSES Ltd. 25 Jan., 1967 [17 Feb., 1966], No. 6971/66. Heading C2U. Novel 3 - unsubstituted - 4 - OR - #<SP>3,5</SP>- steroids, wherein R is aliphatic carboxylic acyl of at most 6 carbon atoms, are prepared by enol-acylation of 3-unsubstituted-4-oxo-#<SP>5</SP>-steroids. The products may in turn subsequently be hydrolysed to 3-unsubstituted 4-oxo-#<SP>5</SP>- steroids, of which 17α-acetoxy-16-methylenepregn - 5 - ene - 4,20 - dione is novel. Certain groupings may undergo transformation in the enolacylation, so that the hydrolysis product is not necessarily the same as the starting material. In examples 4,17α-diacetoxypregna- 3,5 - dien - 20 - one is prepared from 17α- hydroxy - pregn - 5 - ene - 4,20 - dione; 4,17α- diacetoxy - 16 - methylenepregna - 3,5 - dien- 20 - one is prepared from 17α - hydroxy - 16- methylenepregn - 5 - ene - 4,20 - dione or from 16α, 17α - epoxy - 16# - methylpregn - 5 - en- 4,20-dione and is then hydrolysed to 17α- acetoxy - 16 - methylene C, pregn - 5 - en - 4,20- dione; and 4,17# - diacetoxyandrosta - 3,5- diene and 17# -acetoxy-4-n-butyryloxyandrosta- 3,5-diene are prepared from 17#-acetoxyandrost-5-en-4-one.
Patent GB-1024632-A (GB)
Title: Method of casting concrete
IPC: B28B1/08
Filed: 1963-02-21
Abstract: 1,024,632. Moulding concrete. BYGGNADSFIRMAN OHLSSON & SKARNE A.B. Feb. 21, 1963 [Feb. 22, 1962], No. 7024/63. Heading B5A. A concrete body is cast by suppyling the cement mortar and the aggregate separately and, simultaneously at such a rate that the level of the cement mortar is always higher than that of the aggregate.
Patent GB-1522043-A (GB)
Title: Thread feeder assembly device for driving a series of thread feeding devices from a common driving means by means of belts or the like
IPC: B65H51/22
Filed: 1976-02-23
Abstract: 1522043 Thread feeding assembly IRO AB 23 Feb 1976 [25 Feb 1975] 07100/76 Heading DIG A thread feeder assembly comprises a plurality of thread feeders of the type having a rotatable member for collecting thread from a bobbin or other supply for subsequent feeding to a textile machine (a sewing machine for example) the feeders each having a drive member adapted to engage with at least two belts and wherein each pair of adjacent feeders is coupled by a belt engaging similarly positioned grooves of the respective feeders, the belts alternate in axial position. and the belts coupling the feeders are of the same length.
Patent GB-1498584-A (GB)
Title: Pulse duration to analogue current converter
IPC: H03M1/82
Filed: 1976-02-24
Abstract: 1498584 Pulse duration demodulator HONEYWELL Inc 24 Feb 1976 [19 March 1975] 07128/76 Heading H4L A pulse duration to analogue current converter comprises an integrating network 8, 16, to which transistors 4, 12 whose bases are coupled to reference voltage V R , are connected, the collector current of transistor 4 being varied in accordance with the variable duration of constant period pulses applied at terminal 18, the averaged output being amplified at 22 and converted to a corresponding current in a load resistor connected at 28. To minimize the required value of resistor 30, the amplifier feedback comprises resistors 32 and 38, and transistor 34 whose base is connected to the reference voltage, the constant current characteristic of the path 38-34-32 ensuring that variations in the emitter voltage of transistor 26 are fully fed back to the inverting input of amplifier 22, the constant D.C. shift across resistor 32 ensuring that the amplifier operates in the linear region. The load current is proportional to the pulse input duty cycle.
Patent GB-1013978-A (GB)
Title: Telegraph channel divider system
IPC: H04L5/22
Filed: 1964-02-20
Abstract: 1,013,978. Telegraphy. STANDARD TELEPHONES & CABLES Ltd. Feb. 20, 1964 [Feb. 28, 1963], No. 7132/64. Drawings to Specification. Heading H4P. In a multiplex telegraph system in which start-stop characters from a plurality of subchannels are received intermittently at the transmitter, the transmitter removes the start and stop pulses and multiplexes the data prior to transmission. The cycle of multiplexed data is preceded by a start pulse. At the receiver demultiplexing takes place and the start and stop pulses are re-inserted in each character before routing them to the respective subchannels. At the transmitter the system uses a shift register for each sub-channel to convert the serial data to parallel form. It is at this stage that the start and stop pulses are removed. The parallel data is stored and then read out to a common shift register whenever a multiplex cycle is about to start. A start pulse is added, and the common register read out at a rate greater than that of the input data. The receiver employs shift registers to reverse the multiplexing process. The Specification gives details of the circuitry, which is electronic and transistorized throughout.
Patent GB-881830-A (GB)
Title: Improvements in or relating to colour television apparatus
Inventor: NEWTON GEORGE CHARLES
IPC: G02B27/14
Filed: 1957-03-05
Abstract: 881,830. Colour television. ELECTRIC & MUSICAL INDUSTRIES Ltd. March 5, 1958 [March 5, 1957], No. 7192/57. Class 40(3). Green, red and blue component images of a scene are directed to respective photo-sensitive surfaces 1, 2 and 3 by means of an optical system comprising a pair of beam splitting mirrors 5 and 6, a first lens 7 for focusing the image on surface 1 and a second lens for focusing the images on surfaces 2 and 3. The arrangement may be employed for converting a monochrome camera for use in a colour television system where elements 2-6 are assembled as an adaptor for attachment to the monochrome camera represented by elements 1 and 7. The use of very wide angle lenses may restrict the space available for mirror 6 and associated cameras 2 and 3. In a modification, Fig. 2 (not shown), this limitation is avoided by the use of a relay lens system. Mirrors 5 and 6 may be either achromatic and operated in conjunction with appropriate colour filters in front of the photo-sensitive surfaces, or dichroic. In a further modification (not illustrated in detail), light from the scene may be directed on to mirror 5 in a direction transverse the optical axis between mirrors 5 and 6.
Patent GB-100537-A (GB)
IPC: B42F3/00
Filed: 1916-05-22
Abstract: 100,537. Possner, H. G. May 17, 1915, [Convention date]. Paper-fasteners.-A piece of sheet nickel is folded to form clipping-jaws 13, 14. A tongue 15 formed out of one jaw is deflected by contact with the wall 16 of a pocket formed in the other jaw. In forming the pocket, the metal is broken away, forming an opening 18, and in the process, the edge 19 of the opening is curled up; this curled-up edge is left rough, and the tongue 15 locks upon it. The metal blank is formed with notches 11, 12 to ensure bending at the right point, and a transverse depression 20 may be made for the same purpose. The jaws may be strengthened by longitudinal ribs 21, 22, as shown in Fig. 2.
Patent GB-1018295-A (GB)
Title: Improvements in wrapping machines
Inventor: PEARSON FREDERICK HENRY
IPC: B65B11/58
Filed: 1962-02-24
Abstract: 1,018,295. Wrapping-machines. ROSE BROS. (GAINSBOROUGH) Ltd. Feb. 4, 1963 [Feb. 24, 1962], No. 7306/62. Heading B8C. In a wrapping machine, articles 11 are  moved by the elements 16 of a conveyer, to engage a succession of double layer wrappers 17, 18 fed transversely to the path of the articles, each article and its wrapper being forwarded by the conveyer into a folding channel 22, to form an open-ended pouch which encloses the forward, upper, lower and side faces of the article and projects at its open end beyond the rear face, the layer 18 of a heat sealable material being of greater width than layer 17 and prior to folding, the outer layer 18 is temporarily gripped between members 26, 27 at both sides to move the layer 18 relative to layer 17 by an amount 15 thus allowing the end portions of layer 18 to overlap, on folding, and to be subsequently heat-sealed together. The wrapper layers are fed by a driven roller and severed by a device 21, Fig. 6, not shown. The gripping members 26 are swung inwards of channel 22 to be between layers 17, 18 and members 27 on arms 41 rotate downwards on to layer 18, both members being under the control of cams and are movable in timed relationship with the conveyer.
Patent GB-267937-A (GB)
Title: Improvements in or relating to refrigerating machines of the absorption type
IPC: F25B33/00
Filed: 1927-03-16
Abstract: 267,937. Electrolux, Ltd., (Assignees of Platen-Munters' Refrigerating System Aktiebolag). March 16, 1926, [Convention date]. Refrigerating, absorption machines for.-In continuous-cycle systems containing an inert auxiliary medium and wherein an open-bottomed sleeve 10 is provided for the heating means of the generator 6, an element comprising a fluted member 16, Fig. 2, and a tubular baffle 17 is inserted in the sleeve to direct the combustion-products from a gas burner 13 against the walls of the sleeve. The generator is surrounded by a heat - insulated jacket 15 closed at the bottom and open at the top, and the combustion products escaping through holes 14 in the sleeve pass up the jacket and heat the wall 9 of the generator. The usual riser coil 11 leading to a pumping pipe 12 surrounds the lower part of the sleeve. The sleeve and inserted element are preferably of rustless iron or aluminium, and are in metallic contact. The Specification, as open to inspection under Sect. 91 (3) (a), comprises also the use of an electric heating element in the sleeve when the element 16, 17 is removed. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1178371-A (GB)
Title: Polymers of Piperidine Derivatives
IPC: C07D211/14
Filed: 1968-02-14
Abstract: 1,178,371. Unsaturated ammonium derivatives. ALLIED CHEMICAL CORP. 14 Feb., 1968 [16 Feb., 1967], No. 7334/68. Heading C2C. [Also in Division C3] Novel compounds having the general formula wherein X represents a chlorine or bromine atom; each of the R groups, which may be the same or different, represents H, or an alkyl radical containing 1 to 18 carbon atoms; R 1  represents a radical of the formula -CN or -COR 2 , wherein R 2  represents a radical of the formula -OR, -OH, -X, -NHOH, -NHNH 2 , -NH 2  or -NHR wherein X and R are as defined above; and n is an integer from 1 to 20 are prepared by: (a) condensing diallylamine or an N-alkyl substituted diallylamine with a halocarboxylic acid, ester or nitrile at room temperature or up to the reflux temperature; or (b) reacting a diallylamine with an α,#-unsaturated acid, ester or nitrile to form the corresponding tertiary amine. The corresponding quaternary ammonium salt may then be prepared by further reaction of the tertiary diallylamine with a hydrogen halide or an alkyl halide. Reference has been directed by the Comptroller to Specification 1,139,918.