baber/WOPTO huggingface dataset:
Patent GB-104733-A (GB)
Title: Improvements in Stationary Contacts for Electric Switches or Circuit Breakers.
Inventor: HOLT FREDERICK BRERETON
IPC: H01H33/02
Filed: 1916-03-15
Abstract: 104,733. Holt, F. B. March 15, 1916. Contacts.-Fixed contacts for electric switches and circuit-breakers are made of metal strips which are bent to form limbs passing through a single opening in the switch base or support, the limbs being secured together by clamps provided with tightening-bolts disposed in a direction perpendicular to the limbs. As shown in Fig. 2, the limbs 10 of contacts 5 pass through an insulating- sleeve 12, which is sufficiently elastic to permit of the clamping of the limbs by U-shaped members 13, 14 and transverse bolts 15, the members 13, 14 being secured by bolts 19 to the switch base 11. Roughened metal plates 18 may be arranged between the limbs, and the insulating-sleeve may be omitted. In the form shown in Figs. 5 and 6, a rigid sleeve 23 with a cylindrical bore is used, and the limbs of the ccntacts 20, 21, 22 are bent to lie alongside one another. Below the sleeve, the limbs are secured by knife-edged plates 32 upon the two U-shaped members 80, 31 of a clamp provided with transverse bolts 34, and above the sleeve the limbs pass through a washer 26, a spring washer 37, and a clamp 28, 29 connected to the lower clamp by bolts 38, 39. To prevent the contact from turning relatively to the sleeve, the lower clamp members have pins 35 engaging with a transverse recess 36 in the lower end of the sleeve. Roughened metal plates may be fitted between the limbs, or strips of paper may be used. The contacts may be provided with auxiliary contacts, and when designed for oil switches, the insulating-sleeve 12, Fig. 2, may dip below the oil surface. When the contacts are to be used with alternating currents, the limbs of the strips may be interlaced to avoid losses due to skin effect. Specifications 28746/13 and 3001/15 are referred to.
Patent GB-1021683-A (GB)
Title: Machines for making paper, or pulp sheets
IPC: D21F1/52
Filed: 1963-01-31
Abstract: A paper-making apparatus has the tops of the suction box and/or forming board stable and self-supporting and made of a polyethylene-preferably sintered low-pressure polyethylene, or extruded or moulded polyethylene-softer than the material of the wire, and with a coefficient of friction less than 12 with respect to the wire, which may be a plastics or bronze wire.  The plastics may contain friction reducing admixtures-for example molybdenum sulphide, - and electrically conducting admixtures-for example graphite.  The tops are machined, and highly polished.  The suction box top may be a single sheet with slots or circular holes or spaced strips extending transversely to the direction of travel of the wire.  In either case the area of the openings, to the total area of the suction zone of the top should be at least .4 and preferably .6.
Patent GB-247381-A (GB)
Title: Improved means for closing or sealing holes or punctures in ships' plates, tanks, orthe like
IPC: B63B43/16
Filed: 1925-02-12
Abstract: 247,381. Duncan, O. W., Shaw, J. T., and Duncan, W. C. Feb. 12, 1925. Leakage, stopping.-A device for closing leaks in ship's plates, tanks &c. comprises a bulletshaped flexible outer cover a the flanged end c of which is gripped by bolts f between a washer d and an end plate e of brass, rubber or other non-corrodible material. An inner tube is inflated by the valve h mounted in the end plate. The device is passed through the fracture in a semi-inflated condition, and when fully inflated, accommodates itself to the contour of the rupture and so closes the leak.
Patent GB-1217534-A (GB)
Title: Photographic silver salt diffusion transfer process
Inventor: BEAVERS DOROTHY JOHNSON
IPC: G03C8/06
Filed: 1968-01-25
Abstract: 1,217,534. Silver salt diffusion transfer process. EASTMAN KODAK CO. Jan. 25, 1968 [Jan.25, 1967], No.4012/68. Heading G2C. The invention relates to a silver salt diffusion transfer process in which the silver halide emulsion layer contains as the binder (a) a water insoluble polymer or a copolymer of an acrylate or an alphasubstituted acrylate; the alcohol residue of the ester or the alpha-substitutent containing an active methylene group and the amount of acrylate in the copolymer being at least 50% or (b) a copolymer containing 3-20% by weight of a sulphoester of formula CH 2  = C-CO.O R 3  SO 2  OM wherein R 4  R 4  is H or alkyl R 3  is alkylene, cycloakylene or alkylene interrupted by at least one O or S atom and M is a cation and the remainder being an alkyl acrylate or an alkyl alpha-substituted acrylate, the alkyl group containing 1-10 carbon atoms. The silver halide emulsion may be overcoated with a layer containing the acrylate polymer or copolymer. Preferably the acrylate used is of the formula: CH 2  = C-CO OR 2  wherein R 1  is H or alkyl or R 1  R-O-CO-CH 2 X wherein R is alkylene and X is aliphatic acyl or cyano and R 2  is alkyl, cycloalkyl, aryl or R-O-CO-CH 2 -X, the alkyl or alkylene groups having from 1-10 cations. Alternatively the acrylate copolymers listed in Specification 1,181, 508 may be used. The acrylate polymer is preferably mixed with gelatine. Acrylate interpolymers containing (i) at least 50% by weight of a monomer of formula CH 2  = C-CO-OR o  " where      |      R<SP>1</SP> 0  R<SP>1</SP> 0  is hydrogen or methyl and Ro is alkyl, (ii) either (a) 3 to 20% by weight of a sulphoester monomer of formula set out above or (b) from 3 to 20% by weight of acrylic acid and (iii) an acrylate of formula CH 2  = C - COÀOR 2     |    R 1  wherein the values of R 1  and R 2  are as above. In the examples, the gelatine silver halide emulsion layer either contains, or is overcoated with, methyl acrylate/sulphopropyl acrylate/2- acetoacetoxyethyl methacrylate interpolymer, butyl acrylate/ sulphopropyl acrylate copolymer or butyl acrylate/ sulphopropyl acrylate/2- acetoacetoxyethyl methaerylate, imagewise exposed, developed and pressed against a receptor sheet containing palladium nuclei in an alkyl acrylate/ acrylic acid latex.
Patent GB-1008873-A (GB)
Title: Improvements in or relating to electromagnetic shift mechanisms for capital and small letters in typewirters with electrically operated input and output devices
IPC: B41J23/38
Filed: 1961-11-24
Abstract: 1,008,873. Typewriters. OLYMPIA WERKE A.G. Nov. 24, 1961 [Nov. 26, 1960], No. 42079/61. Heading B6F. A typewriter having incorporated therein an output converter I for producing electric code signals corresponding to the matter typed, and an input converter II whereby code signals can be converted to operate the typewriter, is provided with an electromagnetic shift mechanism in which operation of a shift key U actuates a control element to effect a shaft from printing lower case characters to printing upper case characters and causes a pulse to be fed to the converter I to condition it for producing corresponding signals, and release of the key U causes the shift to be reversed and a second pulse to be fed to the converter I to restore it to the condition for producing lower case signals. The signals from the converter I may be transmitted to a perforator. Operation of the key U causes a relay B to be energized and a holding circuit to be completed at b2. Contacts b4 are closed to energize an electromagnet M and actuate the shaft mechanism T. At the same time, contacts b3 also close causing a condenser C2 of a timing unit Z 1 to discharge through a relay E, thus closing contacts e3 and producing a pulse in line 6 to condition the converter I for upper-case operation. When the key U is released, a circuit is completed to a relay A through contacts b1 now closed. Contacts a2 now change-over, contact a1 is opened, contact a3 is closed and contact a4 is changed over, contact e1 is closed through the energization of relay E via contact a3 causing a condenser C1 of a timing unit Z2 to discharge through relay A, a restoring pulse to be fed to the converter I through line 7, and relay B to be de-energized. The circuit of electromagnet M is also opened so as to restore the shift mechanism T to lower-case position. If the typewriter is being operated by signals from converter II, the output converter is rendered inoperative, and a control switch II3 in the circuit of the shift key U is opened. Shift signals from the input converter II then operate coils 31, 34 and 41, 44 on the relays A, B to effect actuation of the shift magnet M.
Patent GB-346085-A (GB)
IPC: H01C10/28
Filed: 1930-02-07
Abstract: 346,085. Variable resistances. THOMAS, J. E., 63, Rue Edgar-Quinet, Malakoff, Seine, France. Feb. 7, 1930, No. 4188. Convention date, Oct. 22, 1929. [Class 37.] A contact element for a rheostat &c. consists of an elastic ring opposite points on the outside of which press against the operating spindle or a member attached thereto and the resistances element, on which the ring rolls as the spindle is turned. In the arrangement shown the ring 12 is placed between the spindle 3 and the resistance element 1 and is caused to roll on the resistance element by rotating the spindle. A plate 13 on the spindle retains the ring 12 in place and a forked piece 6 mounted on a sleeve 5 surrounding the spindle 3 engages the ring 12 and is rotated thereby so as to operate a pointer 8 attached to the sleeve 5. A flexible band of metal may be interposed between the resistance element 1 and the ring 12, which may then be of insulating materials.
Patent GB-697213-A (GB)
Title: Improvements in or relating to electrical rectifying apparatus
Inventor: EDWARDS REGINALD ARTHUR
IPC: H01G2/08
Filed: 1952-02-18
Abstract: 697,213. Cooling liquids in bulk. STANDARD TELEPHONES & CABLES, Ltd. Feb. 18, 1952, No. 4225/52.Class 64 (iii) [Also in Group XXXVI] A tank filled with oil or other insulating liquid and containing a plurality of metal rectifiers immersed in the oil is provided on its outside walls with pipes or passages through which circulates a cooling liquid such as water..In the example shown in Fig. 1, a square tank 1 has pipes 2 arranged zig-zag fashion and welded or otherwise secured to or made integral with the tank walls. The pipes 2 on each wall are connected individually or collectively, e.g. in series or parallel through control valves, &c., to a water supply. In Fig. 3 (not shown) a tank wall comprises pipes joined together by spacing pieces. In Fig. 4 two plates 8, 9, channelled or indented as at 10 form a tank wall. The tank may be of any other desired shape, e.g., drum-shaped and the passages other than circular in cross-section, e.g., oval or rectangular.
Patent GB-670270-A (GB)
Title: Improvements relating to engine-driven electric generating plant for rail vehicles
Inventor: ABBINK-SPAINK JOHANN HERMANN
IPC: H02P9/04
Filed: 1949-02-16
Abstract: 670,270. Systems for transmitting mechanical power ; automatic speed control systems. ENGLISH ELECTRIC CO., Ltd. Feb. 8, 1950 [Feb. 16, 1949], No. 4242/49. Class 38 (iv). In an internal combustion engine-electric power plant for vehicle propulsion of the kind in which substantially constant engine loading is maintained by a governor-controlled servomotor 15, 15a, 15b acting upon a regulator 14 for the field 10a of the generator 10 and, at higher vehicle speeds, by means controlling the excitation of the traction motors 11, means are provided for reducing the generator voltage prior to applying field-weakening to the motors and, when operating with weakened fields, rise of motor current to a predetermined value operates a relay CR which effects a strengthening of these fields. Preferably field weakening of the motors can be effected only when the fuel controller 20 of the prime-mover is in the maximum fuel position, for which purpose the controller is provided with contacts 20a-20c. Assume the plant to be running with the motor fields fully energized, the fuel controller set for maximum intake, the engine underloaded and the regulator approaching the " full out " position. When this position is reached the regulator opens limit switch LR and deenergizes a field contactor FS which by its contacts FS4-6 causes the insertion of resistor 16 in the generator field, the running back of the regulator 14 until voltage relay DR drops out, and the re-closing of LR, with the result that contactor FS is re-energized and completes through its contacts FS2 and contacts H1 of a slugged relay H (energized previously when FS dropped out) an energizing circuit for a motor field weakening contactor DC1. The last locks in over contacts DC1b and connects resistor 12 across the motor field 11a at contacts DC1a. If the load on the engine still falls, regulator 14 again opens limit-switch LR and the consequent actuation of contactor FS and relay H energize field weakening contactor DC2 which then connects resistor 13 in parallel with resistor 12. The system may then operate with weakened motor field over a range of fuel intake determined by the lengths of the controller contacts 20b, 20c. If the load now increases, causing the motor current to rise about a predetermined value, relay CR operates and breaks the locking circuit of contactor DC2 to cut out resistor 13. Opening of contacts CR1 in the maintaining circuit of contactor DC1 may, or may not, cause this contactor to drop out and restore full motor field, depending on whether or not the cutting-out of resistor 13 causes the motor current to drop below the holding value for relay CR within the delay time of a slugged relay R having contacts R2 shunting contacts CR1.
Patent GB-233457-A (GB)
Title: Improvements in or relating to means for measuring the flow of fluids
IPC: G01F5/00
Filed: 1924-02-19
Abstract: 233,457. Lake, W. H. Feb. 19, 1924. Venturi and Pitot-tube apparatus.-Comprises apparatus in which is measured or weighed a small quantity of liquid issuing through a nozzle under a head represented by the difference in pressure produced by two columns of liquid, the surface of one of which is always approximately coincident in level with the nozzle outlet and large in area compared with that of the other, both columns being, in known way, subjected to similarly variable pressure conditions as the fluid to be measured. The leading and trailing pipes to a Venturi apparatus A, Bare connected to receptacles b, e respectively. The chamber b is provided with a weir c and the liquid is kept at a constant level by a trapped supply pipe d. The receptacle e contains a smaller receptacle f con. nected below the liquid level to the tank b. A nozzle g of small calibre is set at the level of the liquid in the tank b. The head in the receptacle f above the nozzle is due to the difference of pressures on either side of the throat, and as this head produces the flow through the nozzle, -the liquid discharged into the vessel e is proportional to the square root of this pressure difference. In a modification, a portion of the liquid passing through the pipe A, B is collected. The point A is connected through a chamber i' containing a filter with the glass gauge m in which it attains a height h. The point B of lower pressure is connected to a chamber m in which floats a tank p. Connected to the tank are two flexible pipes r, s the one r connected to the tube m while the other a passes through the bottom of the vessel n. The pipe r ends in a small nozzle at precisely the level of the liquid in which the tank p floats. The pressure at the nozzle is that due to the difference of head h, h' and the liquid discharged through the pipe s is a measure of the square root of that difference. The pipe m is usually connected to the top of the chamber n and the liquid level in the chamber n is kept constant by adjusting the pressure of air above the liquid. A trap v in which is a float controlling the outlet valve in the bottom of the trap is fitted as shown.
Patent GB-1172276-A (GB)
Title: Alkaline-Earth Derivatives of Alkylene Bridged Phenols and their use as Lubricant Additives
Inventor: BRANCH SIDNEY JOHN
IPC: C07C37/20
Filed: 1967-01-28
Abstract: 1,172,276. Alkaline-earth phenolates. OROBIS Ltd. 25 Jan., 1968 [28 Jan., 1967], No. 4334/67. Heading C2C. [Also in Division C5] Phenolates are prepared from phenols of the formula in which R denotes an alkyl group, R<SP>1</SP> and K<SP>11</SP> denote hydrogen atoms or alkyl groups and n is 0-4, by treating the phenols with an alkalineearth oxide, hydroxide or alcoholate and reacting the products with carbon dioxide. The initial phenols may be prepared by reacting alkylated phenols with aldehydes, ketones, mixtures of aldehydes or ketones or compounds yielding aldehydes or ketones, e.g. formaldehyde polymer, in the presence of a catalyst, a number of which are specified. The reaction of the phenol with the alkaline-earth compound is preferably effected in a diluent, e.g. mineral oil. A vicinal glycol, e.g. ethylene glycol, may also be present. The reaction with carbon dioxide may be effected at a raised temperature. Examples are given of the treatment of a methylene-bridged phenol derived from pdodecylphenol. The products are useful as lubricant additives (see Division C5).
Patent GB-676326-A (GB)
Title: Improvements in tracks for sliding doors, drawers, and the like
Inventor: ALDAM DONALD GEORGE
IPC: E05D15/06
Filed: 1950-02-21
Abstract: 676,326. Drawer runners. ALDAM & CO., Ltd., E. H. Dec. 13, 1950. [Feb. 21, 1950] No. 4384/50. Class 52 (i). [Also in Groups X and XXXIV] A metal track for sliding doors, cabinet doors, &c., of the type having a channel 1 for runners 2, a back plate 4, and a top flange 5 is characterised in that the front edge 6 of the flange 5 is located inwardly of, or substantially in vertical alignment with, a vertical plane passing through the outer lip 10 of the flange 1, and holes 8 in the flange 5 for receiving screws 7 are inclined so that the heads of the screws are easily engaged by a screwdriver 9* when the track is being fixed e.g. to the lintel of a door frame. When the track is extruded the seatings for the screws are preferably formed as a continuous projection on the underside of the flange 5, the seatings being formed as shown in Fig. 2 during the forming of a rolled channel or, as separate projections pressed up after a channel has been rolled. Screws 11 passing through the back plate may provide additional support for the track.
Patent GB-300439-A (GB)
Title: Improved insecticide and fungicide
Filed: 1928-02-13
Abstract: 300,439. Lacroix, M., and Breyer, H. Feb. 13, 1928. Insecticides; fungicides.-For destroying larvae, insects, cryptogams and root diseases on plants, cereals, and flowers, a composition is prepared as follows :-Naphthalene, sublimed sulphur, and barium sulphate are intimately mixed; and nitrate of copper and tar oil are stirred in, and the mixture made into a homogeneous paste with sodium silicate; there are then added formic acid and potassium silicate, and finally pine sawdust which has been boiled in water until partial evaporation has ocurred, sifted, and treated either with milk of lime if a liquid insecticide is desired, or with slaked lime if tablets or briquettes are to be prepared. Proportions are given. The product may be sprinkled on to plants or dug into the ground; it may be diluted with water before use.
Patent GB-408781-A (GB)
Title: Improvements in adjustable louvre windows
IPC: E06B7/084
Filed: 1933-02-14
Abstract: 408,781. Louvre windows; vehicle windscreens ; ventilators. WADDELL, J., 116, Bultge Street, Dubbo, and HUET, F. A., Dubbo Street, Warren, both in New South Wales, Australia. Feb. 14, 1933, No. 4511. [Classes 20 (iii) and 137.] A louvre window comprises, in combination, a plurality of rabbet-edged horizontally arranged glass slats hinged at their ends to a frame, arcuate arms attached one to each slat and to a common vertical operating bar, and means for actuating the bar and locking it in the adjusted position. The unit may be used as a fixed or sliding vehicle window or as a vehicle windscreen. In the form shown, the frame 10 is of T-section having a web 10<1> against which the glass slats 11 abut when in the closed position. Metal clips 12 of channel section are attached to each end of each slat and are formed with eyes 13 for receiving pins 14 by which the slats are pivoted to the frame. To each clip is secured an arcuate arm 19 passing through a recess in the web 10<1> and attached to a common actuating bar 20. Springs 21, 22 act on the bar and arms, respectively, and tend to urge the slats to their closed position. The rabbeted ends of the slats interengage and form a weathertight joint. The operating mechanism comprises a handle 27, the pivot 28 of which is journalled in the frame 10 and a cover-plate 26. A slotted lever 29 is secured to the pivot and engages with a pin 30 on the bar 20 whereby the latter is raised or lowered to close or open the slats when the handle is manipulated. A spring-urged pin 31 on the handle engages with a series of holes in the cover-plate to lock the bar in any desired position of adjustment.
Patent GB-1192167-A (GB)
Title: Improvements relating to Magnetically Stable Powders
IPC: G11B5/706
Filed: 1969-01-28
Abstract: 1,192,167. Producing doped Fe powder. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Jan. 28, 1969 [Jan. 31, 1968], No.4582/69. Heading C7D. [Also in Division C1] In a method of manufacturing doped Fe powder, α-FeO(OH) doped with Ge, Sn and/or Al is prepared from a doped alkaline aqueous suspension of Fe(OH) 2  by passing an oxidizing gas (e. g. air) therethrough, and the doped α-FeO(OH) is separated from the liquid, washed and dried, and then reduced with H 2  at 250 -500 C. The resulting doped Fe powder is immersed in a hydrophilic organic liquid such as acetone, dioxane or ethanol, removed from the liquid and freed from adhering liquid to produce a magnetically staple powder (i. e. a powder of which the saturation magnetization after exposure to atmospheric air for 24 hours after manufacture is at least 90% of the value measured immediately after manufacture). The Fe(OH) 2  suspension is doped with at least one compound of at least one of Ge, Sn and Al so that the atomic ratio (Ge+Sn+Al)/Fe is at least 0À005, preferably not more than 0À25 and, for Ge above, necessarily not more than 0À06. The examples disclose the use of FeSO 4  and NaOH to form the Fe(OH) 2 , and the addition of GeO 2 , SnCl 2  and Al 2 SO 4 ) 3  as doping compounds. The magnetically stable powder is suitable for application to magnetic recording tapes.
Patent GB-1218042-A (GB)
Title: Laminate
Inventor: CURRY HAROLD GEORGE
IPC: D21H19/82
Filed: 1968-01-30
Abstract: 1,218,042. Coated sheet material. ST. ANNE'S BOARD MILL CO. Ltd. 17 Jan., 1969 [30 Jan., 1968], No. 4602/68. Heading B2E. Packaging material is produced by coating a base sheet of stiff but foldable material with a layer of a polyolefine and then applying to the polyolefine an aqueous dispersion of polyurethane. The base sheet may be paper or folding box board and the polyolefine is preferably polyethylene. The polyolefin may be surface activated, e.g. by corona discharge before application of a polyurethane as a dispersion. Pigments, e.g. titanium oxide, carbon black or dyestuffs may be incorporated into the polyolefin. The polyurethane layer may be covered with a layer of hydrophilic material, e.g. starch or casein. In the formation of a container, a polyurethane layer of one wall may be bonded to a layer of polyurethane or other material of another wall by heat sealing or by use of an adhesive. As shown in the drawing, paper or folding boxboard material 11 is drawn through a nip between a chilled roller 12 and a rubber covered roller 13. An extruder 14 extrudes a sheet of molten polyethylene 16 downwards into the gap between the material 11 and the chilled roller 12. The resulting coated material 17 is then passed around chilled roller 12, thereafter over a stripper roller 20 around guide rolls 21 to reach a coating roller 23 which is partially immersed in a bath filled with an aqueous dispersion of polyurethane 24. The double-coated boxboard is then passed between a backing roll 25, an air knife 26, and then through a dryer 27.