baber/WOPTO huggingface dataset:
Patent GB-666571-A (GB)
Title: Improvements in or relating to hydraulic control gear for agricultural implements
IPC: F15B13/04
Filed: 1948-09-17
Abstract: 666,571. Hydraulic systems; valves. FORD MOTOR CO., Ltd., and SMITH, S. Feb. 11, 1949 [Sept. 17, 1948], No. 24456/48. Classes 69 (ii) and 135. A hydraulic control system for agricultural implements mounted on tractors comprises a rotary control valve, a non- return valve by which liquid is locked in an implement lift mechanism to maintain the implement in its raised position and a bleed circuit for releasing the liquid to affect lowering of the implement, and part of the bleed circuit is utilised automatically to return a lever by which the rotary valve is operated to its neutral position. Figs. 3 to 6 are respectively sections on the lines 3-3, 4-4, 5-5, 6-6, of Fig. 2. With the control valve in the position shown liquid from a pump or other source of supply which is connected to an inlet d passes into a bore a<SP>1</SP> of a valve member a and through the bore to an outlet e leading to the cylinder of an implement lift mechanism. In passing to the outlet the liquid flows past a non-return valve. When the valve member is turned anti-clockwise (Figs. 3 to 6) through 90 degrees to a neutral position an exhaust port f is opened to the bore a<SP>1</SP> by means of the port shown in Fig. 4. The non- return valve prevents liquid from the cylinder escaping to the outlet. By turning the valve to an intermediate position the outlet port connected to the cylinder is connected by means of a bleed passage g to exhaust. Thus the implement may be lowered and by proper adjustment of the valve any desired height of the implement can be maintained. The valve member is held in the position shown against the action of a torsion spring by a spring actuated plunger which enters a recess in the valve body. A pressure actuated piston is provided to force the plunger out of the recess when the implement has been lifted and permits the valve to return to the neutral position. The piston is acted on by the pressure in the bleed passage g. The control valve may be arranged to operate multiple circuit lift mechanism such for example as lift mechanisms controlling front and rear implements; these can be lifted independently with one lever or both together. An individual circuit may be made to serve more than one implement. A relief valve is incorporated in the hydraulic circuit in the valve box.
Patent GB-446947-A (GB)
Title: Improvements in and relating to milling and like machine tools
IPC: B23C1/027
Filed: 1935-09-03
Abstract: 446,947. Milling-machines. WANDERER-WERKE VORM. WINKLHOFER & JAENICKE AKT.-GES., Sch÷nau, near Chemnitz, Germany. Sept. 3, 1935, No. 24559. Convention date, Sept. 3, 1934. Addition to 389,372. [Class 83 (iii)] The supporting means for the overhanging arms of milling machines according to the parent Specification is modified in that a one-piece member is used. A one-piece support 7, Figs. 1 and 3, in a machine having a verticallyadjustable spindle head 4, moving in a divided standard 2, 3 and slidably supporting an overarm 5, may embrace the top and side surfaces of the overarm. Guide surfaces on the support engage the overarm and a system of wedges within the support enables the latter to be clamped both to the overarm and to the standard, fluid pressure or mechanical means or a combination of both being provided for this purpose. A further modified support embraces the lower and side surfaces of the overarm while a still further modification, Fig. 12, is in the form of a right-angled bracket 115 arranged between the standard 114 and an overarm 142. The clamping member 119 in this construction while holding the support against the standard also clamps the vertically adjustable spindle head 123 against its guide surface 122.
Patent GB-1503006-A (GB)
Title: Alarm and utility meter reading system employing telephone lines
IPC: H04M11/04
Filed: 1975-06-09
Abstract: 1503006 Signalling from substations INTERNATIONAL TELDATA CORP 9 June 1975 24618/75 Heading H4K A subscribers station 10 including a subset 11 is provided also with a signalling arrangement 12 including a resistor chain 40, 41 and a switch 42, closure of the switch resulting in a change in the open loop resistance which is detectable at a central office 14. The resistance values-40, 41-are chosen so as not to interfere with the normal operation of the subset 11. Preferably an array of resistors and corresponding switches is provided, Figs. 2-4 (not shown), each switch being part of a condition sensor-e.g. fire or burglar alarm-or of a meter monitoring arrangement-Figs. 5, 6 (not shown). The resistors have different values so that central office equipment 23-31 is able to determine which switch has been actuated.
Patent GB-463610-A (GB)
Title: Improvements in or relating to the driving mechanism of sound film apparatus
IPC: G03B31/02
Filed: 1936-09-10
Abstract: 463,610. Driving sound-films. ZEISS IKON AKT.-GES. Sept. 10, 1936, No. 24718. Convention date, Jan. 23. [Class 40 (ii)] The driving mechanism for sound-film apparatus is so constructed that the sound roller located at the optical exposure point, together with its shaft and bearings, form a combined unit and are withdrawable from the apparatus as a whole. As shown, the roller a is mounted on a driving shaft b which is supported in ball bearings d, e mounted in a bearing box f which is secured in a readily detachable manner in the bearing support g by means of the thread h. A fly-wheel c is secured to the shaft b by a screw m whilst the support g is secured to a wall i of the mechanism housing by means of screws k.
Patent GB-877624-A (GB)
Title: Improvements in release valves for hydraulic props
Inventor: WILSON JOHN JAMES
IPC: E21D15/51
Filed: 1958-07-31
Abstract: 877,624. Valves. DOWTY MINING EQUIPMENT Ltd. July 23, 1959 [July 31, 1958], No. 24730/58. Class 135. In an hydraulic pit prop having the usual load-bearing cylinder and ram members 11, 13 enclosing an hydraulic pressure chamber 16, the pressure in this chamber is releasable to a low-pressure side 17 to allow the prop to contract, through a main pressure release valve 19 and an auxiliary pressure-release valve 28 respectively controlling relatively large and small flow openings, a hand-operated valverelease mechanism includes a rigid movable operating member 32, 34 acting on the auxiliary valve to open it, and a spring 33 interposed between the rigid operating element and the main valve 19 causes this valve to open when the pressure difference across it has been substantially reduced through the auxiliary valve. The auxiliary valve is actuated by a hand lever 40 through an eccentric pin and rod connection 37, 35, this being so arranged that the operating member 32, 34 cannot bottom on the main valve member. The flow opening allowed past the stem 32 of the auxiliary valve-operating member is such as to delay release of pressure for safety reasons. Normal contraction of the prop under excessive load is allowed by release of the pressure through a relief valve 18.
Patent GB-1438865-A (GB)
Title: Building element
IPC: E04B1/18
Filed: 1973-05-24
Abstract: 1438865 Concrete columns or struts STAHLWERKE PEINE-SALZGITTER AG 24 May 1973 [26 May 1972] 24793/73 Heading E1W A building element having a cross section with a hollow core is formed with longitudinal spaced apart load bearing compression members 2 which terminate in thrust plates 9, 15 at each end and are prevented from buckling inwards perpendicular to the main bearing direction by concrete 3 between them. Outward buckling is prevented by embracing steel binders 4 which may be loops or helically wound wire coils. The element may be in the form of a column and several elements may be secured together end to end by bolting. Longitudinal main bearing load is prevented from being transmitted to the concrete by a yielding layer 27 between the end of the concrete and a steel thrust plate 15 welded to the members 2. An H-section steel element may be welded to the members 2 adjacent their ends and provide a shoulder 12 and bolting studs 13 for fixing a horizontal beam. The hollow core 5 may be formed by fire resistant permanent tubular shuttering 6 and the bore may house air conditioning ducts opening above a false ceiling. For Figure see next column
Patent GB-424430-A (GB)
Title: Improvements in or relating to indicators for displaying variable information
IPC: G09F11/26
Filed: 1933-09-07
Abstract: 424,430. Counting- apparatus. ERICSSON TELEPHONES, Ltd., 67, Kingsway, London, ENGBLOM, J. F. T., Villa Tomoana, Elm Avenue, and WILMAN, C. W., 7, Grange Avenue, both in Beeston, Nottingham. Sept. 7, 1933, No. 24810. Drawings to Specification. [Class 106 (i)] [See also Group XXXVIII] An indicator comprises a band, a re-entrant portion of which is pressed against a continuously rotating shaft when the indication is to be changed. The indicator is described in Specification 424,487.
Patent GB-650599-A (GB)
Title: Improvements in or relating to means for releasably joining flexible members
IPC: A44B19/32
Filed: 1948-09-24
Abstract: 650,599. Sliding-clasp fasteners. LONG & HAMBLY, Ltd., and KENT, G. G. Sept. 24, 1948, Nos. 25024, 25912 and 28446. [Class 44] A flexible waterproof strip fastening comprises sealing strip members 1, 2, Fig. 3, of rubber or the like having interengaging profiled edges, sliding clasp fasteners 7 attached to either side of the sealing strips and a bridge piece 13 interconnecting the sliders 9, 10, the arrangement being such that simultaneous closing of the fastenings by the sliders presses the sealing strips together. The tapes 8 of the fasteners are bonded, vulcanized or attached by adhesive to the sealing strips. A tongue 6 on the strip 1 fits in a V-shaped groove 5 in the strip 2 and the edges are guided into correct engagement by a complementary tongue 16, and groove 15 formed in the section of the bridge piece 13. In the uppermost position of the slider the bridge piece is accommodated between recesses in the strips. To prevent tilting of the sliders, skid members 17, Fig. 4, project from either side to run on the lines of fastener elements. A plate 19 at the bottom of the bridge piece is recessed at 18 to guide the lower lines of elements and also to prevent tilting. To ensure that the sealing strips are pressed together at the upper end beyond the sliding clasp, rigid bars 25, Fig. 5, of 2 or other section are secured thereto, e.g. by rivets 26 and adapted to be drawn together by wedging engagement with a plate 27 having overturned edges 28 and secured to the slider. Instead of a flared entrance 29 to the plate 27 the wedging action may be obtained by setting the bars 25 at an angle. In another form the bars are drawn together by a separate plate member which is slid into position from the open end. Alternatively spring rods embedded in the rubber strips may, by their stiffness, be adapted to press the mating edges into contact. In the form of Fig. 11 the plates .38, 44, secured to the strips, are drawn together by a toggle mechanism 41, 42 also adapted to embrace and secure the slider.22.
Patent GB-1422109-A (GB)
Title: Production of moulded foamed articles
IPC: B29C35/00
Filed: 1972-12-28
Abstract: 1422109 Heating & cooling moulds H ERLENBACH 28 Dec 1972 25025/75 Divided out of 1421183 Heading B5A [Also in Division F4] A single heat transfer medium for both heatting and cooling is circulated through a mould for making foam plastics articles, and the returning heat transfer medium is directed to the appropriate heating or cooling device 16, 17 by a temperature sensor 35 in the return path 15 which controls a valve 34 in a tank 18 for separating the hot from the cold medium. The mould comprises thin metal walls 1 which are sealed to thicker g.r.p. walls to form chambers 3 for heat transfer oil entering and returning through pipes 14, 15. Foamable plastics granules are injected by a device 7, and steam to foam the granules is injected through a needle valve 10. Oil for heating the mould is pumped from a heating tank 16 through pipe 14 and displaces cold oil from the previous cycle through pipe 15 and into a cooling tank 17 through the valve 34 which is open. When hot oil reaches the sensor 35, valve 34 is closed and the oil is directed through pipe 25 to tank 16 until this is full, whereupon the oil accumulates in the separating tank 18 which has an overflow 32 into tank 17. When cooling oil is pumped through the mould, valve 34 is opened to allow the accumulated warm oil and the returning cooling oil to pass directly into the cooling tank 17. In other embodiments (see Division F4) two heating tanks are connected in parallel, each with its own pump, one tank producing hotter oil for preheating the mould rapidly. The two heating tanks are either fed from the same separating tank through non-return valves 39, 45 (Fig. 2, not shown), or another separating tank on top of the first divides the two hot return flows (Fig. 3, not shown). The steam injection pipe 12 may have a heating jacket 55 (Fig. 4, not shown) through which oil is pumped by a circulation loop connected to tank 16 before the valve 23 controlling its outlet.
Patent GB-933827-A (GB)
Title: Method for seasoning foodstuff
IPC: A23L27/23
Filed: 1960-07-18
Abstract: The flavour of a foodstuff is enhanced by adding to it one or p  more of the following compounds: 51-guanylic acid, 51-uridylic acid, 51-cytidylic acid or 51-xanthylic acid, or a non-toxic salt or amide of the acids.  The compounds are preferably used in a concentration of around 0.007%, e.g. from 0.1 to 0.001% by weight in the case of a liquid foodstuff.  Further improvement in flavour is imparted with mixtures of the above compounds or when they are employed, together with sodium glutamate, 51 - inosinic acid, sodium succinate and other known chemical condiments.  Alkali metal (sodium), alkaline earth metal, ammonium and histidine salts, and acid amides of the compounds may be employed.  Foodstuffs mentioned are soups, sauces, pickles, boiled foods, sausages, canned foods, table salt, salads, bread, pastes, fruit juices, vinegar, alcoholic drinks and other fermented foodstuffs. According to one of several similar examples, the taste or flavour of a vegetable soup was improved by addition, prior to cooking, of 400 mg. sodium 51-guanylate and 200 mg. sodium 51-uridylate per litre of soup.  Other examples are directed to improving the flavour of sak<\>e and raw soya, respectively. Specifications 912,790 and 933,826 are referred to.
Patent GB-467253-A (GB)
Title: Improvements in the drying of freshly printed sheets of paper
IPC: B41F23/04
Filed: 1935-09-09
Abstract: 467,253. Drying printed sheets. STURM, F. W. J. H. P., and LUNE, R. C. F. Sept. 9, 1935, No. 25079. Void. Convention date, Sept. 10, 1934. [Class 34 (ii)] [Also in Group XVI] In apparatus for drying printed sheets delivered from a duplicating device, the sheets are arranged successively on movable carriers on which they are carried for a certain distance while being heated, thereafter being discharged. In the construction shown, the carriers, each adapted to receive a sheet delivered in a horizontal position, comprise troughs 1 pivotally connected by levers 8 to two endless chains 2 which are mounted on chain wheels 3, 4, adapted to be driven intermittently through ratchet gearing. Each of the levers adjacent the downwardly-moving portions of the endless chains is adapted to bear against the lever immediately below so that the troughs are supported in horizontal positions. Beneath each trough is an electric heating element, the ends of which are connected to contact springs 11 adapted to engage contact bars 12. The elements heat both sides of the printed sheets. As the troughs move round the lower wheels they are tilted so that the sheets are discharged.
Patent GB-1158542-A (GB)
Title: Improvements in Sealing Strips
Inventor: CHALLINER KEITH
IPC: F16J15/10
Filed: 1965-06-14
Abstract: 1,158,542. Pressure sensitive adhesive coating. EVOMASTICS Ltd. 3 June, 1966 [14 June, 1965], No. 25080/65. Heading B2E. [Also in Division C3] A sealing strip comprises a body of a resilient, foamed, rubber or plastics material having a closed cellular structure, the longitudinally extending surfaces of the body being entirely coated with a pressure sensitive, bituminous adhesive. The foamed material may be a natural or synthetic rubber e.g. an expanded neoprene rubber. The foamed material may be coated by drawing through a bath containing the adhesive composition, excess adhesive being removed say by passing the material through a die or by using scraper blades. The sealing strip may be used for sealing or caulking joints in building structures. The foamed material may be provided with a water impermeable rubber or plastics skin, the surface of the skin being coated with the adhesive composition. The water impermeable skin may be formed integrally with the body during the foaming process by contact with cooled walls of a mould in which the foaming is carried out. Alternatively the skin may be bonded to the foamed rubber or plastics material by welding or by an adhesive, and may be a non-cellular form of the same plastics material; or the surface of the foamed material may be partially fused by heating. In the Example, the adhesive composition comprises 611 parts bitumen. 68 parts polyethylene, 68 parts flux oil, 124 parts asbestos fibre, 249 parts surface treated calcium carbonate.
Patent GB-1117061-A (GB)
Title: Benzodiazepine derivatives
IPC: C07D243/14
Filed: 1965-06-14
Abstract: Compounds of the general formula (I) <FORM:1117061/C2/1> in which R1 is a hydrogen or halogen atom, a trifluoromethyl group, a C1- 7 alkyl or alkoxy group or a nitro or amino group, R2 is a phenyl group which may be substituted by a halogen atom or by a trifluromethyl, nitro or C1- 7 alkyl or alkoxy group or R2 is a C1- 7 alkyl, C5- 7 cycloalkyl, furyl or thienyl group, R3 is a hydrogen atom or C1- 7 alkyl group and R4 is a hydrogen atom, a C1- 7 alkyl group, a C2- 7 alkylthioalkyl group, a C2- 8 carbalkoxy group, a carbamoyl group, an alkylcarbamoyl, dialkylcarbamoyl or dialkylaminoalkylcarbamoyl group having 1-7 carbon atoms in the alkyl group or in each of the alkyl groups, or a -COOCat group in which Cat is an alkali metal or one equivalent of an alkaline earth metal, are prepared by treating a compound of the formula (II) <FORM:1117061/C2/2> in which R1-4 are as above defined, but excluding the case in which R4 is -COOCat, and R5 is a C1- 7 alkyl group, with an anhydrous alkanoic acid having up to 7 carbon atoms or with an anhydrous mineral acid, or treating a compound of the formula (II) in which R1-3 are as above defined, R4 is -COOCat and R5 is Cat with a dilute aqueous solution of an acid salt in substantially equimolar proportions or with an aqueous solution of a weak acid, optionally followed by conversion of compounds in which R4 = carbalkoxy to compounds in which R4 = H, carbamoyl or substituted carbamoyl and/or in certain cases introduction of a 1-alkyl or 7-nitro or amino group.  The starting material (II) may be prepared in situ.  Reference has been directed by the Comptroller to Specifications 948,888 and 972,968.
Patent GB-1201526-A (GB)
Title: Gas turbine power units
Inventor: GARRAWAY GEORGE HENRY
IPC: F02K3/12
Filed: 1968-05-25
Abstract: 1,201,526. Jet propulsion plant; gas turbine combustion chambers. G.H. GARRAWAY. May 25, 1968 No.25135/68. Heading F1J and F1L. An aircraft propulsion unit comprises a gas turbine jet propulsion engine formed by a compressor 10, turbine 12 and propulsion nozzle 31, and a lift fan or propellor 22 connected to a turbine 20 which can be driven by the products from a combustion chamber 25 connected to compressor 10 by a duct 19. Duct 19a may supply a further fan or propeller driving turbine. Some of the air leaving compressor 10 is always supplied to a duct 14 where it is burnt with fuel from burners 15 to drive turbine 12. The remaining portion of air leaving the compressor enters a manifold 16 from which it is selectively supplied according to the setting of valves 17, 18, 18a to ducts 19 and/ or 26, 26a. The latter ducts connect with a further combustion chamber 27 in which fuel and air may be burnt in stoichiometric proportions before expanding through a propulsion nozzle 30. Thus, according to the requirements of the aircraft in which the unit is mounted, the propulsion nozzle 30 and the propeller or lift fan 22 can be operated individually or together. Valves 17, 18 can be controlled manually by the pilot or automatically in response to variables such as engine speed or aircraft speed or altitude. Nozzle 31 receives the exhaust gases of turbine 12 under all operating conditions and the thrust thereof may be increased by reheat fuel injected at 32. The exhaust gases cool the surface of combustion chamber 27 when the latter is operating. The exhaust gases of turbine 20 pass to an additional propulsion nozzle 24. Attitude control of the aircraft during lift fan take-off operation can be effected by a propulsion unit 50 receiving fuel through an inlet 53 and air from the compressor 10 via a duct 51 and valve 52. In a modification, Fig.2, combustion chamber 27 is replaced by a combustion chamber 270 remote from the exhaust of turbine 12 and supplied with air from compressor 10 for stoichiometric combustion via a duct 260.
Patent GB-701909-A (GB)
Title: Improvements in or relating to spring plunger electric contacts
IPC: H01H1/24
Filed: 1950-10-16
Abstract: 701,909. Contact members for switches; switch cases. COOPER, H. C., and MEK-ELEK ENGINEERING, Ltd. Oct. 2, 1951 [Oct. 16, 1950], No. 25202/50. Class 38(5) A contact comprises a plunger 13 urged by a spring 23 in a socket 7 and having a terminal projection 21 extending through a socket slot 20 which is closed at its upper end. As shown, a pair of sockets 7 of rectangular section are formed in an insulating block 14, the width of the sockets in the dimension shown in Fig. 4 increasing towards the base, to permit self-alignment of the plungers 13. The block 14 rests on an insulating angle-section member 16 and is secured by a screw 19 to the bottom 18 of a box housing a transformer 12, the transformer being carried by the box lid 8 and having contacts 10 which engage the plungers 13. Such a box is disclosed in Specification 664,073. The contact faces of the plungers 13 may be curved about an axis, or axes, extending across the two plungers to provide a line contact, Fig. 1, which may be shortened by slotting the centres of the faces. In another construction, Fig. 6 (not shown), both slots 20 are formed in the same longitudinal edge of the block 14. To prevent tilting of the plunger 13 by the spring 23 when the projection 21 reaches its outer limit of travel, a further projection 28 may be provided on the plunger 13, Fig. 7, and engage the closed end of a further slot in the block 14. Alternatively, Fig. 9, the upper part 29 of the plunger 13 may be hexagonal and the lower part 30 of different shape to form a pair of projections 31 which co-operate with similar-shaped shoulders formed in the socket bore, Fig. 11 (not shown). In another modification, Fig. 12 (not shown), the terminal projection 21 is permanently connected to a pig-tail. According to another construction (not shown) separate metal sockets for each plunger 13 may replace the block 14.