baber/WOPTO huggingface dataset:
Patent GB-355828-A (GB)
Title: Improvements in or relating to receiving apparatus for electro-magnetic waves
IPC: H04B1/16
Filed: 1929-05-30
Abstract: 355,828. Wireless receiving systems. ROBIKSON, J., 29, George Street, Hanover Square, London. May 30, 1930, No. 16829. [Class 40 (v).] In a receiver for frequency modulated waves interference is prevented by balancing the output from a receiving circuit which is uniformly responsive with a wide range of frequencies against the output from a highly selective circuit. The Figure shows a valve 16 to which the signals are applied in opposite sense both through a fatly tuned circuit 21, 22 and through a piezoelectric crystal 15, balancing being effected by resistance 23. The piezo-electric crystal 15 has a natural frequency such that the basic frequency of the desired signals is slightly removed from it so that the receiver operates over the comparatively straight slope of the resonance curve of the piezoelectric crystal.
Patent GB-476942-A (GB)
Title: Improvements in or relating to the manufacture of organic acid amides
Filed: 1936-06-17
Abstract: Acid amides are made by passing an alkyl carboxylic ester and ammonia together with some of the amide to be produced continuously through a reaction zone, e.g. a long tube, at pressures of 50--500 lb. per sq. in., and temperatures up to 130 DEG  C., and distilling the product, preferably in a stainless steel still.  Example: a mixture of methyl formate, ammonia and a little formamide is pumped into a long pipe, the temperature being first allowed to rise to 90--110 DEG  C. and then to fall to 30--40 DEG  C., pressure being 150 lb. per sq. in. The product is flash-distilled, preferably in a stainless steel still, formamide being left in the pot.  As alkyl esters, methyl, ethyl, propyl, n- and iso-butyl formates, methyl and ethyl acetates, methyl propionate, methyl butyrate are mentioned.  Specification 240,087, [Class 2 (iii), is referred to.
Patent GB-1219479-A (GB)
Title: Improved apparatus for adding material to liquid
IPC: B01D37/02
Filed: 1968-04-09
Abstract: 1,219,479. Mixing solids and liquids proportionately; metering filter aid. BOWSER Inc. 9 April, 1968 [5 May, 1967], No. 16930/68. Headings B1C and B1D. [Also in Division G3] The ratio of turbidity of a liquid at two locations along a main flow path is maintained constant by automatically controlling the addition of material to a by-pass between the two locations in dependence on the ratio of turbidity measurements made at the two locations, so that filter material is added proportionately to the turbidity of the liquid. In Fig. 1, the turbidity of liquid supplied from' a tank 10 to a filter 16 is measured by a meter No. 1, e.g. of the photo-electric type, before it is mixed with a further supply of the liquid which has passed through a tank 18 containing a slurry of filter material such as Fullers earth to aid filtering. The turbidity of the mixture is then measured by a meter No. 2. The difference between the electrical output signal of meter No. 1 and a predetermined proportion of the output signal of meter No. 2 is derived and integrated at 24 to control a solenoid operated valve 20 in an on-off or progressive manner so that the ratio of turbidity before and after the addition of filter material is maintained constant. Modifications are described in which unit 24 controls the supply of filter material only or filter material plus filtered liquid at the mixing point.
Patent GB-1396225-A (GB)
Title: Windscreen wiper assembly
IPC: B60S1/38
Filed: 1973-04-09
Abstract: 1396225 Windscreen wipers MONROE BELGIUM NV 9 April 1973 [4 May 1972] 16933/73 Heading A4F A windscreen wiper arm is connected to a wiper blade harness by a moulded one-piece element 44 of corrosion resistant polymeric material, e.g. glass fibre reinforced nylon, comprising a section 48 formed with a recess 70 for receiving an end of the wiper arm, and a section 50 for fitting between the sides of a U-sectioned harness member and having a hole 58 for receiving a rivet or pivot pin attaching it to said member, a wall of the recess 70 being formed with a fingerpiece 68 reinforced by a rib 73 and resiliently biased for retaining a projection on the arm within a latching hole 76 in the section 44.
Patent GB-713634-A (GB)
Title: Improvements relating to the manufacture of polythene-metal foil laminates
IPC: B32B15/08
Filed: 1950-07-06
Abstract: Polythene is heated in the presence of free oxygen to render it adherent to metal foil.  The polythene, which may be blended with polyisobutylene, is heated, e.g. as granules, in air or oxygen to a temperature below that at which substantial decomposition occurs, e.g. in air at 140-200 DEG  C.  The heat-treated polythene may be extruded as a film which is drawn down to a fraction of its extruded thickness during or before application to the metal foil.
Patent GB-847070-A (GB)
Title: Improvements in concrete-mixing machines
IPC: B28C5/08
Filed: 1959-05-19
Abstract: 847,070. Concrete mixers. PINGON, P. J. May 19, 1959, No. 17016/59. Class 86 A transportated concrete mixer has a device 3 rotatable about its horizontal axis and mounted on a single pair of wheels as at 4. There is a charging and discharging hopper 1 which runs upon rails 2. The engine 13 and gearbox 14 are mounted at the side of the mixer between th whel 4, and the drum and rails 3, 2. The gearbox has reversing clutches (see Fig. 5, not shown) which enable the drum to be driven in either direction for mixing and discharging, and incorporates also a clutch and brake arrangement for a winding drum for the cable 11 by means of which the hopper 1 is raised and lowered. A handle 55 enables water to be supplied to the mixer from the tank 51, which has an adjustable float and valve device for varying the level of water in the tank 51 and consequently delivered (see Figs. 6 and 7, not shown).
Patent GB-792626-A (GB)
Title: Improvements in means for operating switch mechanism on the deformation or severanceof an elongate structural member
IPC: B64D37/32
Filed: 1955-06-14
Abstract: 792,626. Aircraft emergency apparatus. SPECIALTIES DEVELOPMENT CORPORATION. June 14, 1955 [July 20, 1954], No. 17053/55. Class 4. [Also in Group XXXVII] Apparatus for generating an electric signal to operate, e.g., fire extinguishing mechanism in the event of excessive movement or breakage of an aircraft wing resulting from a crash, comprises a housing 10 secured to the structure of a wing adjacent its root end and formed with bearings 15, 16 for a rod 17. One end of the rod has a rupturable connection 32 with one end of a cable 20 housed within a casing 41 and secured at its other end by an axially adjustable connection 49 to a housing 42 secured to the tip structure of the wing. The end of rod 17 remote from connection 32 carries a collar 35 engaged by a spring 19 whereby cable 20 is maintained in tension and the rod has a length 25 of reduced diameter and opposed cam faces 26, 27 which are sufficiently spaced to ensure that normal movements of the wing do not bring the faces into contact with a roller 24. This roller is mounted on a spring arm 22 secured to a switch 11 and excessive movement of the rod 17 imposed by pull on or release of cable 20 in the event of wing failure causes one of the faces 26, 27 to bear on the roller 24 thereby pressing arm 22 into contact with a switch-operating plunger 21. The-position of cam faces 26, 27 with respect to roller 24 may be adjusted by device 49. In a further embodiment such adjustment is provided by making the rod 17 in two threadedly connected parts and locating the spring 19 within the housing 10.
Patent GB-1268272-A (GB)
Title: Process for preparing starch syrups containing as essential constituents straight-chain oligosaccharides and polysaccharides
IPC: C08B30/18
Filed: 1969-04-01
Abstract: 1,268,272. Starch syrups. HAYASHIBARA CO. 1 April, 1969 [1 April, 1968], No. 17104/69. Heading C3U. A process for preparing starch syrups containing as essential constituents straight-chain oligosaccharides and polysaccharides comprises gelatinizing or liquefying a starch slurry, and simultaneously or successively treating the resulting slurry with an α-1,6-glucosidase and a saccharifying catalyst selected from organic acids, inorganic acids and amylases to produce straight chain oligosaccharides and polysaccharides.
Patent GB-171438-A (GB)
Abstract: 171,438. Cullerne, W. P. July 14, 1920. Stencils and stencilling.-In an apparatus for producing patterns on mats or other articles, the mat &c. is secured face downwards upon the upper edges of a number of trays T arranged in the form of the required pattern and secured within a dye vat V, the dye filling the spaces between the trays to a level below that of the upper edges of the trays and determined by the height of an overflow dam D. The trays T are secured to a perforated base B mounted on supports S<1>. A shield S, arranged above the dye inlet pipe I, prevents uprush of dye. Draiupipes J, K are provided. The. apparatus may be constructed to permit of dyeing a number of mats simultaneously.
Patent GB-700406-A (GB)
Title: Improvements in or relating to mechanisms for returning the feet of walking machinesinto position
IPC: E02F9/04
Filed: 1950-07-10
Abstract: 700,406. Motor vehicles. RANSOMES & RAPIER, Ltd., CAMERON, C. M., and BALICKI, F. K. July 10, 1951 [July 10, 1950], No. 17208/50. Class 79(3) In a walking machine there is provided for each foot mechanism for restoring it to its correct angular position when viewed in plan relative to the machine, the mechanism comprising an arm extending in a substantially vertical direction and pivoted at its upper end, a link extending in a substantially horizontal direction and connecting the arm to a point of the foot displaced from a vertical axis about which the foot can pivot, and spring return mechanism associated with the upper end of the arm and tending to restore the foot to its correct angular position through the arm and link. In the preferred embodiment each foot 1 of a walking excavator is of punt like form and is pivotally connected to an operating member actuated by a crank or eccentric, the foot being free to rock about the vertical axis through its connection to the operating member. The foot may turn about this axis during the " walking " action of the excavator and the foot is provided with the mechanism for restoring its correct angular position when it is lifted from the ground. The mechanism comprises the link 4 arranged substantially horizontally and transversely to the foot, the link being universally jointed at one end to a bracket 6 on one end of the foot and similarly connected to the lower end of the arm 8, which at its upper end through the spring return mechanism, such as described in Specification 700,405, [Group XXXII], to a rigid part 9 of the excavator. Specification 525,917 also is referred to.
Patent GB-152400-A (GB)
Title: Improvements in or relating to rear sights for small arms
IPC: F41G1/26
Filed: 1919-07-09
Abstract: 152,400. Vickers, Ltd., Merrick, F. W., and Stevenson, T. J. July 9. 1919. Sights.-Relates to spring-controlled hinged leaf backsights and consists mainly in adjusting the leaf for range by a member carried by the sight bed so as to be displaceable bodily in a direction transverse to the sight bar. The invention also consists in pivoting the leaf between a pair of webs projecting upwards from the sight bed, and in marking the range scale partly on one web and partly on the other. In the form shown, the sight is mounted on a bed A dovetailed to the barrel and held by a screw a which also secures the leaf controlling-spring C. The leaf B carrying the sight notch is pivoted at b to webs B<1> standing up from the bed A, and is elevated for range by a wedge D movable transversely across the bed by a screw E journaled in the webs B<1> and operable by either of the milled heads E<1>. The range graduations are marked alternately on the rear upstanding ends of the webs B<1>.
Patent GB-770975-A (GB)
Title: Improved tool for mounting anti-friction bearings
IPC: B25B27/06
Filed: 1955-06-15
Abstract: 770,975. Assembling force fits. AKTIEBOLAGET SCANIA-VABIS. June 15, 1955 [July 3, 1954], No. 17285/55. Class 83 (4). A tool for mounting anti-friction bearings adapted to drive the outer race and the inner race simultaneously into the bearing body and on to the bearing seat comprises two members or two sets of members axially displaceable relative to one another and adapted to act upon the outer and inner race respectively and means for apportioning the force exerted on the tool to said two members or sets of members. The tool body 1 has a bore 2 for accommodating an outer annular piston 3 which surrounds an inner annular piston 4 guided by a central tube 5 secured in the body 1. Flanges 15 and 16 on the tube 5 and piston 3 respectively prevent the pistons from sliding out of the bore 2. The space between the pistons and the body 1 is filled with oil through a nipple 6, the air being released through a vent screw 11. During the mounting of a bearing 7 between a bearing body 8 and a shaft 9 the outer piston may be displaced relative to the inner piston but the ratio of the forces acting upon the pistons and determined by the piston areas is maintained constant.
Patent GB-152730-A (GB)
Title: System or method of aerial railways
IPC: B61B13/08
Filed: 1919-07-10
Abstract: 152,730. Roots, J. D. July 10, 1919. Rope railways.-Grooved wheels, secured to an aeroplane, engage above and below two laterallyarranged aerial ropeways between which the aeroplane runs. Catenary ropes C are carried upon the tops of towers A or upon transverse girders A<1> thereon; the ropes C may be tied together by ropes or tapering tubes and have dropper wires D which are secured in steel brackets E. Each bracket terminates in a thin plate E<3> with a groove E<4> which, with the grooved plate F, secures a rope rail B. The brackets on one rope B are staggered relative to those on the companion rope. At the towers, the ropes B are secured by brackets H similar to the brackets E. The wheels G are preferably arranged in pairs, with the wheels of each pair staggered and engaging one above and the other below the rails B. The aeroplane propellers or wheels may be driven by combustion engines or by current conveyed by the ropeway, while the catenary ropes may conduct the return current. The stations may have wind shields to protect the aeroplane when at rest. The Provisional Specification describes also the use of one or three ropeway rails.
Patent GB-532111-A (GB)
Title: Improvements in well-head equipment
IPC: E21B33/08
Filed: 1939-06-13
Abstract: 532,111. Well-drilling equipment. SHAFFER, W. D., and SCHWEITZER, F. J. June 13, 1939, No. 17313. [Class 85] Well-drilling equipment comprises a spinnet or sleeve rotatable with the tool carrier which extends through the spinnet &c. on yielding packing means engaging said carrier to prevent blow-out through the bore of the spinnet &c. and a barrier associated with the packing means and adapted to yield outwardly on passage of an enlarged part of the carrier and to return to its original position under the influence of the packing means with which it is permanently associated. A collet 4 has radial lugs 5 adapted to be received between similar lugs on the casing head 3 the parts being locked by rotating threaded cap 8 to bring lugs 9 thereon over lugs 5 and permitting spring bolt 10 to engage one of a series of recesses 5a. A sleeve 17 and a driving band 15 are threaded together and locked by a screw 33 engaging castellations 34, and are rotatably supported by bearings 13, 25, on the collet. Packer 28 provides a seal around the sleeve 17, blow out within the latter being prevented by a packing nipple 19 which may have a substantially square section and is expansible to pass collars on the kelly K etc.; nipple 19 is reinforced by a partly embedded helical spring ring 22 forming a barrier to prevent the nipple from being blown out through the sleeve 17. A split collar 35 has lugs 36 engaging lugs 37 in the driving band 15 to communicate drive from the kelly K; the collar 35 is yieldingly held in the band 15 by a split spring ring 39. The spring ring 39 may be locked by a screw 41 to allow the parts to be removed from the casing head as a unit by the drill string.
Patent GB-1149484-A (GB)
Title: Improvements in or relating to prestressed structures
Inventor: KINGSBURY ROBERT FREDERICK THO
IPC: E04C5/12
Filed: 1966-04-20
Abstract: 1,149,484. Ropes &c. STRESSED CONCRETE DESIGN Ltd. 7 April, 1967 [20 April, 1966], No. 17370/66. Heading D1T [Also in Division E1] A tensioned reinforcing element 3 in a prestressed concrete structure is permanently anchored solely by means of a thermosetting synthetic resin bonding agent having a rapid rate of curing which is introduced into the space defined within a tubular member 5 forming an outwardly opening cavity 6 and between pair of transverse spaced apart plate members 11, 12 having apertures through which the reinforcing element passes. The plates 11 may be connected by a spacer element 13, Fig. 2 (not shown) and may each have a plurality of apertures corresponding in number to several reinforcing elements 3. The plates 11, 12 may be combined with apertured pads 14 which serve to form seals against the reinforcing elements and tubular member 5.
Patent GB-639316-A (GB)
Title: Improvements in means for locating excessive current leakages from the live rails and in electrically propelled vehicles of electric railways
IPC: H01H85/30
Filed: 1948-06-29
Abstract: 639,316. Detecting and locating faults. BOLSOVER, W. S. June 29, 1948, No. 17393. [Class 38 (v)] The live rail of an electrically-propelled vehicle is divided into sections 1 ... 7, each section being in series with a fuse 11 ... 17, each fuse shunting a relay 18 ... 24 so that a short-circuit between rails 1 ... 7 and 40 blows the fuse to actuate the appropriate relay and thus indicate which section is at fault. If the vehicle is the cause of the short-circuit, this is indicated by the sequential actuation of the relays. The relays close the circuit of a common alarm bell 25.
Patent GB-1460924-A (GB)
Title: Nitrogen-containing organosilicon materials and methods for  producing them
IPC: C07F7/18
Filed: 1974-04-19
Abstract: 1460924 Silyl isocyanurates GENERAL ELECTRIC CO 19 April 1974 17395/74 Addition to 1202498 Heading C3S Novel silyl isocyanurates have the formula wherein each Q is M 3-a G a SiR<SP>11</SP>-, and M is R-COO-, R 2 NO-, OCN-, SCN-, CN-, R 2 C=NO-, R 2 N-, RC(OR)=N-, ROO-, or R-COO-O-, R being a C 1-8  alkyl or a phenyl radical, G is R<SP>1</SP> or R<SP>1</SP>OR<SP>11</SP>-, R<SP>1</SP> being a C 1-8  alkyl radical, R<SP>11</SP> is a C 1-8  alkylene or a phenylene radical and a is 0, 1, 2 or 3. They may be obtained by reaction of the silane M 3-a G a SiR<SP>11</SP>X, X being a halogen atom, with a metal cyanate in an aprotic solvent. In the examples silanes M 3 Si(CH 2 ) 3 Cl, in which M is an acetoxy, diethylaminoxy, isocyanato, methylethylketoximino, dimethylamino, ethyl acetimidato, or t-butylperoxy group, are heated at 110-180‹ C. for 3-8 hrs. with excess KNCO in DMF to give the corresponding tri-silylpropyl isocyanurates.
Patent GB-319257-A (GB)
Title: Improvements relating to sofa beds
IPC: A47C17/22
Filed: 1928-06-15
Abstract: 319,257. Marks, E. C. R., (Seng Co.). June 15, 1928. Bedsteads convertible into settees.- In a settee convertible into a bedstead, comprising pivoted sections 19, 20 and 21 connected by links 14-17, 30, 31, 33 and 34 to plates 5 and to the sea.t 8, co-operating means 50, 51 are provided on the frame 1 and the rear section 19, so that, on the initial raising of the seat, the back section 19 together with the intermediate section 21 will be drawn into an aligned position, Fig. 4, and on the Jowering of the seat to the inverted position, Fig. 2, the aligned back and intermediate sections will be swung upwardly and outwardly until all the bed sections are in horizontal alignment. The pivoted truss bar 23 is prevented from turning the wrong way, during folding of the bed, by means of a strap 26. Folding legs 35 are automatically opened during unfolding of the bed, by the engagement of a projection 43, on the link 34, with the slotted link 40.
Patent GB-643949-A (GB)
Title: Improvements in or relating to dumping box
IPC: B65D88/56
Filed: 1948-06-29
Abstract: 643,949. Load containers. MONROE AUTO EQUIPMENT CO. June 29, 1948, No. 17430. Convention date, Feb. 27. [Class 78 (iv)] A dumping box structure adapted to be lifted by the fork of a lift truck and removably positioned on a supporting stand comprises a box having a bottom closure pivotally connected adjacent one end, a supporting structure connected to the box for holding the latter on or above the supporting surface to permit the entrance of the fork of a lift truck between the bottom and supporting surface whereby when the bottom is down it may be engaged by the fork to close it and means for releasably retaining the bottom as a closure for the box, whether it be supported on the supporting surface or elevated out of engagement with the supporting surface, the means being operable to release the bottom for downward swinging movement. As shown in Fig. 1, the dumping box 11 comprises corrugated sides and a beaded upper edge 13 and a closure member 15 pivoted at 19 to a lower edge of the structure and having bracing cross-members 17. Side members 26 form a shoot with the closure 15 in the lowered position. The box is supported on legs 23 of U shape which accommodate the fork of a lifting truck. The closure member is retained in position by two spring-pressed plungers 27 which engage apertures in a latch member 35. The two latches are interconnected by a plate to which a pin 41 is rigidly secured and which is pressed inwardly by a tool provided to move the plungers to release the closure 15. In a modified form for lifting by a crane or the like, straps are provided which are slidably secured to the box and have fitted an upper hooking member. The upper ends have a slot in which a guide pin on the box projects and the lower ends are pivoted to the closure 15 by means of a pivot bar which is supported in the closure and slides in slots in the side plates 26. A supporting stand for the box is incorporated which comprises vertical legs and an open top framework which is extended at one end, with vertical side plates and a lower shoot member for side delivery, or, for front delivery, a bottom plate is placed between the side and end walls.
Patent GB-756671-A (GB)
Title: Improvements relating to flexible joints for the transmission of torsional loads
IPC: F16D3/62
Filed: 1953-06-24
Abstract: 756,671. Flexible couplings. SOC. APPLICAZIONI GOMMA ANTIVIBRANTI S.A.G.A. SOC. PER AZIONI. June 24, 1953 [July '22, 1952], No. 17540/53. Addition to 662,337. Drawings to Specification. Class 80(2) In a flexible shaft coupling as claimed in the parent Specification, the thin plates between which the rectilinear rubber blocks are arranged, are secured alternately to axially-projecting lugs on the two shaft ends by radially-disposed bolts or studs.