baber/WOPTO huggingface dataset:
Patent GB-494354-A (GB)
Title: Improvements in and relating to the tripping control of electric switches
IPC: H02H3/02
Filed: 1937-05-06
Abstract: 494,354. Protective cut-out arrangements. BRITISH THOMSON-HOUSTON CO., Ltd. May 6, 1937, No. 12979. Convention date, May 8, 1936. [Class 38 (v)] A trip-control system comprises a plurality of breakers, each with a trip coil, individual connections each having a switch for connecting the respective trip coils in parallel to a common current-source, a common connection including a single-contact switch connected to all the individual connections for directly and simultaneously connecting all the trip coils to the source, and an impedance between each individual, and the common, connection for preventing the flow of sufficient current to energize any other trip coil when the switch for one trip coil is closed, while allowing sufficient current to flow through the trip coils and the common connection to energize all the trip coils when the single-contact switch is closed. The line 5 is adapted to be disconnected from both sources 6, 7 on fault, by opening breakers 8, 9 by means of a current transformer 17 and relay 16, the contacts 18 of which connect the trip coils 11 in parallel to the source 12, 13 over unidirectionally-conducting devices 20. Either breaker may be tripped open at will, while leaving the other breaker closed, by means of manually or otherwise operated switches 14, 15 provided in the respective trip-coil circuits, the arrangement of devices 20 being such as to prevent tripping current flowing to the trip coil associated with the unoperated switch 14 or 15. This arrangement can be extended to control three trip coils, Fig. 2 (not shown). In Fig. 3, contacts 18 are connected to an intermediate point 19 of a resistance 22 of such a value as to pass the coils 11 sufficient current for fault-tripping, whereas on closure of a switch 14 or 15, the whole resistance 22 opposes the flow of trip current to the other trip coil. Resistances 23 may be inserted to ensure equal current flowing in coils 11 in both fault and manual tripping conditions.
Patent GB-1497603-A (GB)
Title: Hoses
IPC: F16L11/08
Filed: 1975-03-27
Abstract: 1497603 Hoses PARKER-HANNIFIN CORP 27 March 1975 [22 April 1974] 13006/75 Heading F2P A flexible, e.g. hydraulic, hose has a flexible plastics or elastomeric core tube 11 reinforced by at least one layer of aromatic polyamide fibrous yarn having a modulus of elasticity of at least 400 gm/denier and a tenacity exceeding 15 gm/denier both measured at 20‹C, an example being Kevlar (Registered Trade Mark). The core tube 11 may be of synthetic rubber or flexible plastics, e.g. nylon or urethane. The reinforcement may be one or more layers 18, 19 of braided, knitted or helically-wrapped material A sheath 15, e.g. of synthetic rubber or flexible plastics, e.g. urethane or polyurethane, which may be impregnated with fungicide, surrounds the hose. Any or preferably all of the various layers may be bonded to their neighbours by means of, e.g. urethane-based adhesive. A preferred range of loop tenacity is also specified.
Patent GB-1357875-A (GB)
Title: Bolt with shearable second head and flexible slotted instruction plate
IPC: F16B1/00
Filed: 1973-03-19
Abstract: 1357875 Bolts SQUARE D CO 19 March 1973 [20 March 1972] 13099/73 Heading F2H A bolt to be tightened to a preketermined torque has a shank 12a provided at one end with an inner head 12c and an outer head 12d joined together by a neck 12e having a minimum diameter less than the shank diameter, and a flexible instruction plate 13 detachably mounted on the neck 12e and having a radial slot (13a) (Fig. 4, not shown) opening to its outer periphery, the part-circular inner end of the slot engaging the neck 12e. The slot is narrower over most of its length than the minimum diameter of the bolt neck 12e. The plate 13 is circular and large enough to prevent a wrench from engaging the inner head 12c. The bolt is tightened using the outer head 12d, until the neck 12e shears. The plate 13 then falls off, exposing the inner head 12c, and providing visual indication that the bolt has been adequately tightened.
Patent GB-997394-A (GB)
Title: Improvements in and relating to piezoresistive semiconductor strain gauges
IPC: G01H11/06
Filed: 1962-04-05
Abstract: 997,394. Strain gauges. WESTERN ELECTRIC CO. Inc. April 5,1962 [April 25,1961], No. 13101/62. Heading G1N. [Also in Division H1] A strain gauge comprises a flat wafer 10 of piezoresistive semi-conductor material having a thickness less than <SP>1</SP>/ 10  of the minimum planar dimension, and, two pairs of electrical contacts 13 to 16 disposed so that imaginary lines joining the centres of each pair intersect withint ten degrees of normal, the piezoresistive coefficients #<SP>1</SP> in the direction of these lines being such that is not equal to zero whereby biaxial stresses may be measured. To determine the stresses in a member 11 the quantities #V 1 /I 1  with I 2  = 0, #V 2 /I 2  with   I 1  = 0, and V2/I 1  with I 2  = 0 (Fig. 1A) are determined. Equations relating the fundamental piezoresistive coefficients # of the semiconductor material with the corresponding coefficients #<SP>1</SP> along the axes of measurement, and the measured quantities with the required stresses, are given in the Specification. Preferably the modulus of the determinant above exceeds 2 x 10<SP>-33</SP> cm<SP>6</SP>/dynes<SP>3</SP>. In Fig. 1, the ratio a: b should be between 1: 2 and 1: 20, and is preferably 1: 3. The semiconductor materi material may be wholly p- or n-type Ge or Si, but in a modification the wafer is formed like a bimorph with an upper n-type layer and a lower p-type layer, or a p-type layer may be diffused into the wafer at its centre. It is stated that different semi-conductor materials may be combined ina composite structure. A cruciform wafer may be used in place of a square wafer (Fig. 3, not shown) whereby an upper limitation on dimension b may be avoided. In an example, an n-type germanium wafer of 15 ohm-cm resistivity is cut so that direction 1 is [111], direction 2 is [110] and the plane of the wafer is [112]. A bimorph type of gauge with a silicon wafer may have the electrodes arranged in the [010] and [100] directions.
Patent GB-1049465-A (GB)
Title: Tetrahydro-isoquinoline derivatives and a process for the manufacture thereof
Inventor: BROSSI ARNOLD
IPC: C07D217/18
Filed: 1964-03-31
Abstract: Novel 1 - (2,4,5 - trichloro - phenethyl - 2 - methyl - 6,7 - dimethoxy - 1,2,3,4 - tetrahydro-isoquinoline in the racemic and (+)-optically active forms, and salts thereof are prepared by:  (a) Methylating racemic or optically active 1 - (2,4,5 - trichlorophenethyl) - 6,7 - dimethoxy-1,2,3,4-tetrahydro-isoquinoline or  (b) Hydrogenating a 1 - [(2,4,5 - trichlorophenyl) - vinyl] - 2 - methyl - 6,7 - dimethoxy-3,4 - dihydro - isoquinolinium salt, and in either case, where required, separating the (+)-form from a racemate obtained, for example by using an optically active acid such as D-tartaric, dibenzoyl-D- or L-tartaric acid, di-(p-toluyl)-D- or L-tartaric acid or D-camphor-sulphonic acid, and/or converting the said racemate or (+)-form into an acid addition salt.  1 - (2,4,5 - Trichloro - phenethyl) - 6,7 - dimethoxy - 1,2,3,4 - tetrahydro isoquinoline is prepared by condensing 2-(2-acetamido-ethyl)-4,5 - dimethoxy - acetophenone with 2,4,5-trichlorobenzaldehyde, cyclizing the resulting 2 - (2 - acetamido - ethyl) - 4,5 - dimethoxy-(2,4,5 - trichlorobenzylidene) - acetophenone under acid conditions and reducing the corresponding substituted 1 - styryl - 3,4 - dihydro-isoquinoline, or by condensing homoveratryl amine with b -(2,4,5-trichlorophenyl)-propionic acid, cyclizing the resulting acid amide to the corresponding 1 - phenethyl - 3,4 - dihydro-isoquinoline and reducing the latter.  1 - [(2,4,5 - Trichloro - phenyl) - vinyl] - 2 - methyl - 6,7 - dimethoxy - 3,4 - dihydro - isoquinolinium salt is obtained by condensing a 1,2 - dimethyl - 6,7 - dimethoxy - 3,4 - dihydro-isoquinolinium salt with 2,4,5-trichloro-benzaldehyde. Pharmaceutical compositions useful as antispasmodic, antitussive and analgesic agents, and which may be administered enterally or parenterally, contain 1 - (2,4,5 - trichlorophenethyl) - 2 - methyl - 6,7 - dimethoxy - 1,2,3,4 - tetrahydroisoquinoline or - acid addition salts thereof, as the active ingredient.
Patent GB-371615-A (GB)
Title: Improvements in or relating to sheet feeding devices
IPC: B65H7/04
Filed: 1931-05-04
Abstract: 371,615. Feeding sheets. SPIESS, G., 78, Zschochersche Strasse, Leipsic, Germany. May 4, 1931, No. 13140. [Class 100 (i).] Pile supports; sheet-separators.-In a sheetfeeding device for feeding sheets from a fannedout pile which is advanced intermittently by means controlled by the front of the pile, the control means consists of suction nozzles 30 arranged beneath the pile and a connected cylinder 33 fitted with a piston 32 which controls the motion of a freely-mounted segment 37 adapted to control a ratchet- and-pawl mechanism which drives a shaft 15 geared to pileconveying roller 23 and pileadvancing tapes 28, 29, the controlling mechanism being all arranged below the pile table 27. When the pile is sufficiently advanced for the front sheet to cover the nozzles 30 at the time the sheet-separator 52 advances the top sheet, the piston 32 is moved to the right against the action of a spring, and an adjustable rod 35 attached to the piston operates a pawl 36 which engages a ratchet 40 on the segment 37 and thus holds the segment fast. The segment 37 is freely mounted on the shaft 6 of a ratchet 12 and between the ratchet 12 and the frame 1 of the sheet-feeding mechanism. A freely-mounted arm 7 is oscillated about the shaft 6 by a connecting-rod 4 and a crank 3 on a shaft 2, and a pawl 8 pivoted to the arm 7 is fitted with a roller 10 which travels on a raised surface 42 on the segment 37 or it can move on to a depressed surface 41 on the segment. The surface 42 keeps the pawl 8 out of engagement with the ratchet 12, and this occurs if the segment 37 is held by the pawl 36 and ratchet 40. The pile is in this case not advanced. If the front of the pile is out of contact with the nozzles 30, the segment 37 is moved by a spring 38 so as to maintain a projection 39 of the segment in contact with a pin 7 on the arm 5 and the segment 37 oscillates with the arm 6, and in this case the roller 10 moves on to the surface 41 and the pawl 8 engages the ratchet 12 and the pile is advanced. The segment 37 may be held in its inoperative position by a lever 47 with a slot 50 which engages a pin 51 on the segment 37. This engagement takes place automatically when a bell-crank lever 44 is operated to shut off the pneumatic connection to the nozzles of the separator 52. The shaft is fitted with a cam 53 which by lever mechanism raises a batten 61 so as to move the separated sheet out of the sphere of action of the nozzles 30 after they have effected their controlling action, and on this batten are fitted a brush 66 to prevent double feed, and a blast nozzle which assists separation of the sheets. The nozzles 52 deliver the sheet to a suction feed roller 64 which is moved laterally to permit the nozzles 52 to act on the edge of the sheet under the one which is being advanced before this latter sheet is completely removed.
Patent GB-1064073-A (GB)
Title: Improvements in or relating to image intensifiers
Inventor: SCHAGEN PIETER
IPC: H01J43/24
Filed: 1963-04-03
Abstract: 1,064,073. Electron multipliers; cathode-ray tubes. Dec. 6, 1963 [April 3, 1963], No. 13204/63. Heading HID. In an electron-image intensifier device comprising a matrix of elongated channel C having resistive and secondary-emissive inner surfaces extending between input and output conductive faces E 1 , E 2  of the matrix, the axes of the channels lie at an angle α, in the range 3À5 to 11 degrees, to the normal to the input and output faces of the matrix, so that an electric field f can be set up within the channels at an angle to the channel axes. The angle α is preferably 4 degrees. The matrix may be manufactured as described in Specifications 1,064,073 and 1,064,075, and may be of resistive and secondary emissive glass as described in Specification 1,031,987 or ceramic, or may be of insulating glass having suitable channel coatings. Also the matrix may have output collimator means, coaxial with the channels, as described in Specification 1,064,074. The device may be used in light and X-ray image intensifiers, cathode-ray display tubes or image orthicon camera tubes, and the input and output faces of the matrix may be curved or planar. Reference has been directed by the Comptroller to Specification 979,687.
Patent GB-132271-A (GB)
IPC: E04F15/20
Abstract: 132,271. Stevens Partition & Floor Deadener Co., (Assignees of Murphy, E. N.). Sept. 11, 1917, [Convention date]. Joist floors. - In a sound-proof floor comprising an upper floor carried by nailing strips 12, Fig. 2, seated on insulating-pads 15 in chairs 13 which rest on the lower floor, the upper floor is prevented from rising by bolts 23 the heads of which are normally just clear of the lower faces of the chairs, or by pins 29, Fig. 6, passed transversely through the strips 12 and through oval holes in the chairs, or by a clevis 33, Fig. 7, and eye-bolt 35.
Patent GB-992388-A (GB)
Title: Blended polypropylene compositions
IPC: B29C48/15
Filed: 1964-03-31
Abstract: A composition comprises 85 to 95 parts by weight of normally solid linear polypropylene and 15 to 5 parts by weight of normally solid branched chain polyethylene.  The polypropylene preferably has a density of 0.85 to 0.91 g./c.c. and a melt index of 10 to 40 gms./10 minutes.  The polyethylene preferably has a density of 0.917 to 0.930 g./c.c. and a melt index of 4 grams/10 minutes. The composition may be used for coating paper.  Specification 688,637 is referred to.ALSO:Paper is coated, preferably by the process of Specification 688,637, with a composition that comprises 85-95 parts by weight of normally solid linear polypropylene and correspondingly 15-5 parts by weight of normally solid branched chain polyethylene.
Patent GB-414480-A (GB)
Title: Improvements relating to water heaters
IPC: F24H1/26
Filed: 1933-05-06
Abstract: 414,480. Heating water. RADIATION, Ltd., Thimble Mill Lane, Aston, Birmingham, and WILSON, W. A., Carlton Works, Armley, Leeds. May 6, 1933, No. 13276. [Class 64 (i).] In a water heater with a vertical flue through which rises hot gas from a gas burner, the flue is constructed in two concentric parts a, b between which is formed a narrow annular space c closed at its lower end d and which may be open at its upper end, the space containing a small quantity of water which is rapidly heated and prevents condensation on the inner surface a. A hollow cylindrical baffle h is placed in the upper part of the tube a. Specification 370,588 is referred to.
Patent GB-632702-A (GB)
Title: Improvements in or relating to the production of porous building materials
IPC: C04B28/02
Filed: 1947-05-16
Abstract: Porous materials containing hydraulic binding agents are prepared by utilising as foaming agents sulphite lyes of the cellulose industry or solutions of plant extracts such as horse-chestnut and acorn extracts to which have been added compounds yielding alkaline earth ions, particularly calcium ions, prior to converting the solution into a foam.  When the solution of foaming agent is acid, sufficient alkaline earth compound having an alkaline reaction is added to render the solution alkaline.  In alternative processes, the hydraulic binding agent or mixture of binding agent and aggregate, such as sand, may be mixed dry with the mineralised solutions of the foaming substances, which solutions may be diluted with water or an aqueous solution of waterglass, and the resulting suspension converted into a foamy slurry by introducing compressed air, or a foam may be first produced from the mineralised solution which p foam is then incorporated with the hydraulic binding agent, or the mineralised solution of foaming agent may be evaporated to dryness and the dried product used for the production of foam e.g. by adding it to the wetting fluid and/or to the components of the building material, and subjecting the mass to foaming.  The porous mass obtained after setting may be crushed and used as addition to hydraulic building materials.  Specification 588,524 is referred to.
Patent GB-1491085-A (GB)
Title: Pneumatic actuated brake system
IPC: B60T13/66
Filed: 1975-04-01
Abstract: 1491085 Pneumatic braking systems WERKZEUGMASCHINENFABRIK OERLIKONBUHRLE AG 1 April 1975 [11 April 1974] 13315/75 Heading F2F A pneumatic braking system includes a servo valve having a first valve member 13 controlling communication between air line 12 and line 23 leading to brake cylinder 24, a second valve member 26 controlling communication between line 23 and atmosphere and a valve stem connecting member 13 to a piston 17. To apply the brake electro-pneumatic charging and release valves, 20 and 29 respectively, are opened so that compressed air from line 12 is admitted to chamber 18, piston 17 is lifted to open valve 13 and, via a sleeve 25, close valve 26. Compressed air from line 23 is admitted to chamber 19 to urge piston 17 and a further spring loaded piston 27 secured to sleeve 25 in the closure directions of valves 13 and 26 respectively; piston 17 is unaffected while chamber 18 communicates with line 12. At a predetermined pressure in line 23 a pneumatic limiting switch 31 de-energizes charging valve 20 which then connects chamber 18 to exhaust and causes piston 17 to close valve 13. The brake is released by closing valve 29 to connect chamber 19 to exhaust and allow piston 27 to open valve 26. Switch 31 may have a two level response to allow selection of alternative braking pressures (Fig. 2, not shown).
Patent GB-222167-A (GB)
Title: Improvements in the manufacture of sound records
IPC: G11B3/70
Filed: 1923-05-18
Abstract: 222,167. Dreyfus, C. May 18, 1923. Blanks.-Gramophone and like record blanks are made from a composition comprising rosin and cellulose acetate or other organic acid esters of cellulose or ethers of cellulose; or the rosin may be incorporated with a mixture of such cellulose derivatives, with or without the addition of solvents, plasticizing agents, pigments, filling- materials, stabilizers or neutralizers. Many suitable additional ingredients of these kinds are mentioned. The amalgamation of the rosin with the cellulose derivatives mav be made in solution, preferably using a solvent boiling below 150‹ C., or the ingredients may be mixed together under heat and pressure, or in any other way. A composition in which proportions of the ingredients are specified by way of example comprises rosin, cellulose acetate, and paratoluene sulphonamide, or paratoluene sulphonanilide, or a liquid high-boiling alkylated xylene, toluene, or benzene sulphonamide derivative such as described in Specifications 132,283, 133,353, and 154,334, [all in Class 2 (ii), Cellulose, &c.]. These substances are melted and mixed together, and after the mass has cooled it is powdered and mixed with filling materials, and with dyes or pigments if desired. The mixture is then worked into sheets on hot malaxating rolls, the sheets being afterwards cut into blanks on which sound impressions are made by a matrix. The composition may be pressed into blocks, which are afterwards cut into blanks, or the composition or solution may be used in making laminated records by coating paper &c. sheets which are united by heat and pressure.
Patent GB-133842-A (GB)
IPC: C04B18/16
Abstract: 133,842. Sankey, C. H. Dec. 19, 1918. Refractory substances.-Waste refractory articles, such as fire-bricks, tiles, saggers, retorts, nr the refractory lining of furnaces, kilns, flues, retorts, or coke ovens, which have been calcined in manufacture or use, are ground and mixed with silicate of soda and water, moulded or worked by hand to the required shapes and fired. The refractory material may be cleaned or washed' before being ground. Reference has been directed by the Comptroller to Specification 376/83, [Class 56, Glass].
Patent GB-370689-A (GB)
Title: Card shuffling and dealing apparatus
IPC: A63F1/12
Filed: 1931-05-07
Abstract: 370,689. Shuffling and dealing cards. FARNIE, D., 58, Edgar Place, Nutley, and BURGESS, E., 23, Curtiss Street, Bloomfield, both in New Jersey, U.S.A. May 7, 1931, No. 13483. [Class 132 (ii).] Comprises apparatus for automatically shuffling and dealing playing cards. The motor 11 drives through gears 13, 14 the sleeve 15 and through gears 9, 8 the shaft 5 carrying the disc 4 rotating below an opening 2 in the table 1. The sleeve 15 carries the frame 16 carrying the slide 30 controlled through the springs 23, cam 28 on hub of disc 4 and roller 27 on member 19 provided with cushioning springs 24. The cards 26 are placed through the aperture 2 on to the table 4 and are thrown off the table into the trough 48. The box 32 is carried round on the frame 16 which has an arm 46 with extension 47 and projection 50 engaging in a groove 49 by which the cards are swept round over transverse ribs 55 to fall through an aperture 52 in the trough to pass into a box 56 from which they are pushed, by an extension 59 on the box 32 passing into a slot 58 in the box 56, into the box 32. From the box 32 the cards are ejected one by one through the slot 40, covered by spring 25 and of width substantially equal to the thickness of a playing card, by the spring fork 35 and rubber pad 34 on the reciprocating slide 30 as the box comes opposite the card pockets 43 provided with hinged doors 44 into which they pass along the inclined guide 41. The invention can be used for dealing other than four hands by changing the gearing 13, 14 and 8, 9 to change the ratio of the speeds of rotation of the shaft 5 and sleeve 15. The arm 46 might be secured to the disc 4 instead of to the frame 16 and made to rotate more rapidly than the frame 16 and pass the slot oftener than the box 32 removes the cards from the box 56, thereby ensuring the accumulation of a larger number of cards in box 56 and making a larger pack for periodical removal by box 32.
Patent GB-123108-A (GB)
Title: Automatic Hand-brake for Perambulators and similar Vehicles.
Inventor: PESSELL ROBERT CHARLES
IPC: B62B5/04
Filed: 1917-09-20
Abstract: 123,108. Pessell, R. C. Sept. 20, 1917. Locking by frictional or positive detents. - Brakes for perambulators, adapted to be applied when the handle is released, comprise in one form, Fig. 1, one or a pair of spring rods a secured to the handle B by a band b and having projections d which are interposed between the wheel spokes. As shown in Fig. 3, a pair of levers a are pivoted at f upon a strap h attached to the handle bars C adjacent the handle and are connected by adjustable rods i to the detent members d which are pivoted to brackets m on the axle n. Fig. 4 shows a brake s acting upon the wheel tyre and actuated by the lever a, and a pair of toggle links r, r' connected respectively to the brake arm i and the member t fixed upon the axle n. A spring u tends to apply the brake.
Patent GB-135147-A (GB)
IPC: E21B1/30
Abstract: 135,147. Neilson, W. M., and Harris, A. T. July 3, 1919. Percussive drills.-A ported anvil-block 7 is arranged between the hammer-head 8 and the tool 6, and communicates with a water source through a passage 50. The tool is rocked to change the position of the cutting end by a handle 10.
Patent GB-104306-A (GB)
Title: Improved Boring Tool.
Inventor: BARR ALEXANDER ANDREW
IPC: B23B45/06
Filed: 1916-09-25
Abstract: 104,306. Barr, A. A. Sept. 25, 1916. Drills.-Chips are removed in drilling fuse holes in the charge of an explosive shell by a socket 6 connected to an exhausting hose and making contact with the fuse adapter. Air-inlet holes are provided at 3, 4, 5. Scavenging air is admitted to the socket through holes 8, and a scraper is provided at 9 to engage the spindle or drill shank 1.