baber/WOPTO huggingface dataset:
Patent GB-745458-A (GB)
Title: Improvements in stapling machines
Inventor: DUNN CHARLES GEORGE
IPC: B25C5/16
Filed: 1953-07-22
Abstract: 745,458. Stapling machines. OFREX, Ltd. July 15, 1954 [July 22, 1953], No. 20386/53. Class 89 (3). In a stapling machine having a blade for driving staples down a guideway formed between the end of a staple magazine and a front plate of the machine, the end of the staple magazine constituting one side of the guideway is resiliently mounted so as to yield when a staple is driven. The staple magazine comprises a bar 11, the end portion 14 of which is resiliently mounted on the main portion, over which the staples slide, by a rod 15 and spring 17. Added support is provided by a cross-bar 21. When the blade 6 is depressed to press a staple down the guideway formed by the end of the portion 14 and a front plate 15, the edge of the staple engages a clamped surface 20 on the portion 14 so as to press that portion rearwardly an amount equal to the size of the staple. The gap between the portion 14 and the main body of the bar 11 is oblique so that staples will not fall therein as they pass along the magazine. Specification 670,475 is referred to.
Patent GB-1070404-A (GB)
Title: Indoline derivatives
IPC: C07D209/18
Filed: 1964-05-15
Abstract: The invention comprises compounds of formula <FORM:1070404/C2/1> wherein R1 is an optionally substituted aryl or 5- or 6-membered aromatic heterocyclic group, optionally fused, or an aralkenyl, aryloxy or arylamino group, R2 is a hydrogen atom or an alkyl, aryl, aralkyl, cycloalkyl or alkenyl group containing not more than 8 carbon atoms, R3 and R4 are hydrogen atoms or alkyl groups, m is 0 or 1, R5 is a hydrogen atom, an alkyl, amino or alkoxy group, or when m is 1, a hydroxy group, R6 is a hydroxy, alkoxy, aryloxy, haloaryloxy, aralkoxy, dialkylaminoalkoxy, amino, hydroxyalkylamino, morpholino, piperazino, alkylamino, dialkylamino, arylamino, trifluoromethylarylamino, aralkylamino, diarylamino, diaralkylamino or -OM group wherein M is an organic or inorganic cation, R7 is a hydrogen atom or a C1- 5 alkyl group, R8 is a hydrogen or halogen atom or an alkyl, alkoxy, nitro, amino, alkylamino, dialkylamino, cyclic amino, acylamino or ureido group and R9 is a hydrogen atom or an alkoxy group, and their preparation by (a) 1-acylation, (b) interconversion of the groups -COR6, (c) hydrogenation of a corresponding indole derivative, (d) nitration, (e) reduction of a nitro group R8 to an amino group, (f) reaction of an amino group R8 with a mono- or di-halide to form an alkylamino, dialkylamino or heterocyclic amino group, or with an isocyanate to form a ureido group, or (g) preparation of a compound wherein R5 is a hydroxy group by reduction of the corresponding ketone.  Esters of (1-unsubstituted-3 indolyl)-carboxylic acids are prepared by (a) reaction of phenyl hydrazine with a carboxylic acid diester or ester-amide, or (b) esterification.  The compounds of the invention have anti-inflammatory and anti-pyretic activity and may be used in pharmaceutical compositions in combination with a carrier, for example in forms suitable for oral administration.
Patent GB-833802-A (GB)
Title: Improvements relating to detachable joints for connection rods
IPC: F16B7/18
Filed: 1957-06-29
Abstract: 833,802. Rod couplings. BAILEY BROS. (HOT PRESSINGS) Ltd., BAILEY, R. W., and BAILEY, A. G. June 30, 1958 [June 29, 1957], No. 20599/57. Class 99(1). In a joint of the type comprising socket members 6, 8, e.g. made as hot brass stampings, for reception of rods 7, 9, the member 6 being provided with a spigot 10 which non-rotatably engages a socket 11 formed in the member 8 and having an external screw-threaded portion 12 for engagement with a ring nut 13 rotatably mounted on the spigot 10, the spigot 10 and socket 11 are of uniform non- circular, e.g. hexagonal, cross-section and the ring nut 13 is restrained against axial displacement by a chamfered metal ring 16, e.g. of brass, which engages an annular groove 17 in the spigot 10. The ring 16 may be jointless or split.
Patent GB-295123-A (GB)
Title: Improved means for disinfecting closets
IPC: A47K17/00
Filed: 1927-08-05
Abstract: 295,123. Allen, R. Aug. 5, 1927. Closets, disinfecting.-A disinfectant container 1 has flanges 2 adapted to rest on the top of a closet pan with or without wires 5 which may be bent down to embrace the rim. A wick projects slightly from a short tube 3 and a filling opening with cover 4 is provided.
Patent GB-1191623-A (GB)
Title: Improvements in or relating to Filler Caps.
Inventor: JEAVONS PHILIP SWINGEWOOD
IPC: B60K15/04
Filed: 1966-05-11
Abstract: 1,191,623. Closure caps for petrol tanks. WILMOT-BREEDEN Ltd. 8 May, 1967 [11 May, 1966], No. 20790/66. Heading B8T. A filler neck 1 is closed by means of a cap having a portion 10 which may be locked rotationally relative to a body 13 by a key-operated device 16. The action of the key causes plates 27, slidable in an element 17 of the cap portion, to pass between webs 30 on the body 13. The neck 1 has opposed slots (4) extending into its end 2 and a flange 3 with a pair of camming ramps (6), Figs. 6 and 7 (not shown). Initially, the slots (4) receive both a pair of projections 32 on the body 13 and a further pair of projections (5), Fig. 1 (not shown), on a retaining ring 22 keyed to the portion 10 and under pressure from a spring 7. To align the projections 32, (5), members 33 on the body are located in depressions in the ring 22. When the cap is inserted in the neck, the portion 10 is rotated, thus also turning the ring 22 and causing each of the projections (5) to ride up one of the ramps (6) on the neck 1, in order to hold the cap axially in the neck. The key is then turned to lock the portion 10 to the body 13, the projections 32 of which remain in the slots (4) to hold the cap rotationally. Washers 14, 19 form seals. In a modification, Fig. 4 (not shown), the ring 22 is mounted on an extension of the body 13, and the parts 10, 13 are coupled when the filler cap is unlocked, i.e. the cap is inserted into the neck with the plates 27 extended. To lock the cap, the plates 27 are retracted so that rotation of the portion 10 cannot turn the ring 22.
Patent GB-1075002-A (GB)
Title: Amylose compositions
IPC: C08L3/12
Filed: 1964-05-20
Abstract: Compositions comprise polyvinyl alcohol and amylose, the proportion of polyvinyl alcohol being at least 5 weight per cent. The polyvinyl alcohol preferably contains less than 20 mol per cent of residual acetate groups.  The amylose may be derived from corn or potato starch, and may be a starch fraction or a whole starch containing at least 50% amylose.  The compositions may be dissolved in water and cast or extruded to form films.
Patent GB-1437813-A (GB)
Title: Electric power source
IPC: G05F1/62
Filed: 1973-05-02
Abstract: 1437813 Transistor bi-stable circuits MASSACHUSETTS INSTITUTE OF TECHNOLOGY 2 May 1973 [25 May 1972] 20939/73 Heading H3T [Also in Division H2] Transistor light-controlled avalanche switches.- In a voltage multiplying/dividing converter (see Division H2) a high voltage switch comprises a series arrangement of a plurality of stages each shown in Fig. 10, each comprising a reciprocallycoupled, complementary pair of junction transistors Q20, Q21 and other components connected as shown triggered by light signals on a photo-diode D21. Light-controlled bi-stable switching circuits.- Fig. 2 shows a pair of transistors Q9, Q10 arranged to be conductive alternately so as to connect opposite sides of capacitor C1 to an output terminal T3. The switching transistors Q9, Q10 are controlled via further transistors Q1, Q2 in turn controlled by a FET bi-stable 1 triggered by photo-diodes D2, D4 irradiated by pulses from LED's D1, D3. The bi-stable 1 comprises two pairs of complementary-symmetry, enhancement MOSFET's, diagonally opposite pairs of which are conductive in the respective states. The power supply Es, may be obtained from solar cells, a battery or from a capacitor C1. A potential divider comprising transistors Q1 or Q7, resistor R1, Zener diode Z1, resistor R2 and transistors Q2 or Q8 provides a stabilized voltage for the bi-stable 1. Over 1000 of such circuits may be switched in series/parallel, capacitors C3, C4, C5 being provided to charge the stray capacitance to the necessary high voltage. In one state of the bi-stable 1, the current in FET A3 is passed by Q3 to the base of Q1 which turns on the switching transistor Q9. In the other state the action is achieved by Q5, Q2 to turn on Q10. Miller circuits C8, C9 are included which, together with inverse diodes D7, D8 accommodate surge currents drawn from the output terminal T3 without causing excessive base current in Q1, Q2. Q7, Q8 clamp the bases of Q1, Q2 in their OFF condition. All the elements in Fig. 2 may be integrated on a single chip.
Patent GB-725898-A (GB)
Title: An improved grass mower and leaf mulcher
Inventor: MILLER WILLIAM FENTON
IPC: A01D34/00
Filed: 1953-07-28
Abstract: 725,898. Cutting and comminuting grass. TORO MANUFACTURING CORPORATION OF MINNESOTA. July 28,1953, No. 20961/53. Class 6 (3). [Also in Group II] A grass-cutting and comminuting machine comprises a wheeled frame carrying a cylindrical open-based housing 12 in which rotates a horizontal blade 31 with an upwardly-inclined trailing edge to create an upward air-draught within the housing, the rear wall 16 of the housing being provided with perforations 17 and the lower end of the front wall 22 being fitted with an air-deflector 23 to re-direct descending air-currents upwardly so that grass-cuttings can leave the housing only through the perforations 17, when fully comminuted, to fall on to the ground behind the machine. The frame includes side-members which carry the rear-wheels 9 and are extended to form the handle 11 by which the machine is pushed. A motor M drives the blade 31 through a belt-drive 40, the height of the blade above the ground being variable by the insertion of bushes 35 on the cutter-spindle 26. The front of the machine is carried on wheels 19 journalled on the housing 12. In a modification, the deflector 23 is integral with the front wall of the housing, and both may be removed when cutting very long grass.
Patent GB-358147-A (GB)
Title: Improvements in or relating to markings for tennis courts and sports or recreation grounds
IPC: E01C13/00
Filed: 1930-07-11
Abstract: 358,147. Marking tennis courts &c. GARE, G., 434, Buxton Road, Stockport, Chesbire. July 11, 1930, No. 20985. [Classes 20 (iv), 87 (i), and 107.] Markings for tennis courts and other sports grounds comprise comparatively short bars 1 of rubber arranged end to end with their upper surfaces flush with the ground and connected t o - gether by longitudinal rigid lengths 3 of metal, which are tightly threaded through holes or slots 2 provided in the rubber bars and extend across the joints formed by the abutting ends of the bars. The sides of the rubber bars may be recessed, as at 4, Fig. 1, and the metal bars may be anchored in the ground by metal staples 12, Fig. 3. In a modification, one or more metal bars 16, of I section are arranged in the ground, as shown in Fig. 11, and each rubber bar 14 has a T-shaped slot to engage the upper flange of the bar 16. Where two lines abut or intersect, the metal bar at the end of one line may be adapted to enter or pass through a transverse hole in the other line. Alternatively, a rubber bar in the form of a cross may be arranged at the intersection of two lines. At corners, rubber pieces of angle shape may be provided, or rubber pieces with mitred abutting ends may be threaded on to metal bars of angle shape. The metal members may be in the form of perforated cylindrical tubes 9, Fig. 9, and the rubber bars 7 are chamfered at their lower abutting parts to permit drainage water to enter the tubes and flow outside the sports ground.
Patent GB-573857-A (GB)
Title: Differential vacuum tube amplifiers
IPC: H03F3/28
Filed: 1943-12-17
Abstract: 573,857. Valve amplifying circuits. 'STANDARD TELEPHONES & CABLES, Ltd. Dec. 17, 1943, No. 21195. Convention date, Dec. 23, 1942. [Class 40 (v)] A push-pull amplifier in which balanced inputs are amplified and unbalanced reduced by the use of a common unbyepassed cathode impedance, is arranged for A.C. and D.C. amplification, the load impedance being connected between the anodes. The input is fed to the two valves 8, 12 across a potentiometer resistor 3, 4 and 5, their plates being connected through a resistor 23, across which the amplified signal is taken, and at one end of which a connection is made through capacitor 24 to ground, the source of potential being the battery 21. The cathodes are connected to earth through a resistor 18, battery 17 counteracting the D.C. volts drop across the resistor and ensuring appropriate bias to the valve grids. Desired alternating voltages are balanced to earth and are applied to terminals 1 and 2 and amplified to appear at the output terminal 25, whereas interfering signals common to both terminals 1 and 2 are reduced due to the cathode voltage following the grid voltage. Specification 541,986 is referred to.
Patent GB-1401295-A (GB)
Title: Process for the production of hydrated mixed metal silicates
IPC: C04B14/22
Filed: 1972-05-08
Abstract: 1401295 Hydrated product comprising mixed silicates WASAGCHEMIE GmbH 8 May 1972 [22 July 1971] 21284/72 Heading C1M A process for the production of a water-containing product comprising mixed silicates, comprises introducing glass chips consisting of alkali metal silicate in piece form, into a tumbler autoclave with water and powdered and/or fibrous alkali-soluble oxide and/or siliceous materials in a ratio by weight of the solids of 1 part of alkali metal silicate to 0À02-0À8 parts of the total of the oxide and/or siliceous materials and optionally together with watersoluble organic compounds, the oxide and/or siliceous materials being dissolved by introducing steam at vapour pressures of 1-5 atm., in statu nascendi of the alkali metal silicate solution, i.e. glass chips in the process of dissolution, and the resulting solution dried in known manner at atmospheric pressure by means of conventional drying techniques and, if necessary, grinding techniques to form a powder with a water content of 1-25% by weight containing three or more different metal or semimetallic oxide compounds capable of forming glass and, if desired, organic compounds. The powder obtained may be used in the production of foamed glass. The alkali metal silicate preferably has a Na 2 O : SiO 2  ratio of more than 1 : 3À2. The oxide material may be zinc oxide, borax, aluminium oxide hydrate, or lead oxide. Suitable siliceous materials are mineral wool, basalt wool, glass wool, slag wool, powdered slag, crushed stone or glass powder. Suitable organic compounds, which are used as expanding agents for foamed glass products, are sugar, glycerine, glycol and molasses.
Patent GB-454458-A (GB)
Title: Process for proofing animal fibres against moth larvae, mould and rotting
Filed: 1935-07-26
Abstract: A double salt of chromium fluoride and sodium antimony fluoride may be made by evaporating either a solution containing 4 parts of chromium fluoride and 1 part of sodium antimony fluoride or a mixture of crude solutions of these salts as prepared industrially before separation of the solids.
Patent GB-725636-A (GB)
Title: Edge roll for spring cushion assembly
Inventor: RICHARDSON WILLIAM FREDERICK
IPC: A47C27/04
Filed: 1953-07-31
Abstract: 725,636. Stud and socket fasteners. FLEXO-LATORS, Inc. July 31, 1953. No. 21316/53. Class 44. [Also in Group XIV] A wire 32 with a series of spaced expandable heads 34 formed thereon is used to secure a strip 20 of pliable padding folded over a mattress border frame and provided with spaced holes 30 through which the heads 34 are inserted.
Patent GB-1476843-A (GB)
Title: Radiotelephone system
IPC: H04B1/66
Filed: 1975-05-20
Abstract: 1476843 Automatic exchange systems PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 20 May 1975 [10 June 1974] 21472/75 Heading H4K In a radio-telephone system in which a base station can effect bi-directional digital communication with any mobile over any one of a plurality of carrier frequency channels, to allow bi-directional use of each channel, each channel is divided in TDM fashion to provide in each frame transmit and receive time slots and periods used for the transmission from the base station of a frame synchronization pattern simultaneously on each channel, and signalling code words individual to the channels on those channels, idle mobiles being adopted to scan the channels and to rest on any channel on which the frame synchronization pattern is detected until instructed to make some other response by the signalling code on that channel. The figure shows the equipment for one channel at the base station and a control unit 13 common to all channels. To allow for continuous speech, speech is sampled at each end, delta modulated as at 29, clocked into a buffer as at 30 at a frequency 16 kHz read-out during a transmit time slot at a frequency 36 kHz following a frame synchronizing code synthesized at 24, a bit synchronizing code generated at 26 and channel associated signalling data read-out at 27. The transmit time slot is followed by signalling code words read-out from 25 and selected by the control 13. Signals to be transmitted are modulated at 15 on a carrier synthesized at 22 and transmitted via a transmit receive switch 19. Incoming codes received are demodulated at 16 and fed to a zero crossing detector which synchronizes the incoming control unit 33 to the incoming signals, and to a bit regenerator which feeds the bits at a frequency 36 kHz to a buffer store 36, a synchronization pattern detector 35 and a service bit detector 34. The received speech samples are read-out at a frequency 16 zHz and decoded to provide a continuous speech signal. The equipment at a mobile is generally similar to that provided per channel at the base station. In operation the mobiles hunt for a channel on which the synchronizing code is present. The base station may for example mark selected channels by means of code words transmitted thereon as reserved for high priority calls, may mark that channel as occupied or direct receivers not required for a particular connection to another channel.
Patent GB-288883-A (GB)
Title: Improvements in belt fastenings
IPC: F16G3/02
Filed: 1927-08-15
Abstract: 288,883. Girten, C. E. Aug. 15, 1927. Belt fastenings.-In hinged belt fastenings, the bolts 5 for securing the sections 1<1> to the belt ends are arranged in one or more rows and have heads 6 carrying barbs 7 for entry into the belt surface, and recesses 8 are formed in the sections opposite the heads so that when the nuts 9 are tightened the heads 6 lie Bubstantially flush with the inner side of the belt. The sections 1 may be straight or may be slightly bent as shown. Reference has been directed by the Comptroller to Specifications 2294/86, 18146/10, and 710/14.
Patent GB-910606-A (GB)
Title: An improved collapsible stillage or pallet
IPC: B65D19/12
Filed: 1959-06-24
Abstract: 910,606. Hinges and pivots. HUNTER, R., STANLEY, S. W., and FIELDING, H. Sept. 22, 1960 [June 24, 1959], No. 21618/59. Class 65 (2). [Also in Group XXX] In a stillage or pallet of the kind in which one or more of the sides are foldable on to the base and at least one of the foldable sides 11 is provided with legs 13 pivotally and slidably engaged with corresponding legs 1 of the base, the lower end of each leg 13 fits into a socket 5 in the lower part of the corresponding base leg 1 to lock the associated side in the raised position. The socket is preferably of box form, the leg 1 being made by welding together two unequal lengths 7, 9 of angle iron, and the leg 13 may be of complementary form, a pin-and-slot connection 15, 16 being provided between them. A cranked lug 17 (not shown) for engaging the upper edge of the upstanding portion 6 of the base leg 1 may be provided on the upright 14 of the side 11 for further rigidity. Cranked strips 22 may be provided on the legs 1 to form slots for engagement by pivot pins on the alternate sides of the stillage or pallet so that these may also fold on to the base. Specification 735,258 is referred to.
Patent GB-185931-A (GB)
Title: Plate manipulating mechanism for rolling mills
IPC: B21B39/04
Filed: 1921-08-15
Abstract: 185,931. McCabe, T. Aug. 15, 1921. Rolling.-In a metal plate-rolling mill such as that described in Specification 181,603, when used for rolling hot plates, the lifters D are rigidly attached to the carriers E, each having a guide 104. The rear lever 3 is connected' to the carrier by a sliding bearing y. The driving clutch is put out of action at the end of a single revolution by a bolt 43, which must be withdrawn by hand or by a foot-lever each time the carriers are required to move up or down, the cam shaft being driven at half speed. The table is arranged to be tilted to the rear by means of a foot-lever 106.
Patent GB-860093-A (GB)
Title: Lubricating system and flow directing valve
Inventor: GRAVES GEORGE THEODORE
IPC: F16K11/07
Filed: 1958-07-07
Abstract: 860,093. Valves. FARVAL CORPORATION. July 7, 1958, No. 21736/58. Class 135. [Also in Group XXXIV] In a fluid flow distributing system, such as a lubricating system, a double-acting plunger 4 forces lubricant fed from a reservoir 9 thrcugh a non-return valve 10 through a pressure discharge line 2 containing a non-return valve 11 to a flow directing valve 1, from which it passes through a line 14 to manifolds 15, 16 containing dispensing valves, e.g. as described in U.S.A. Specification 2,016,372, having supply lines 17. When the dispensing valves have discharged a measured quantity of fluid pressure builds up in the line 14 causing the valve 1 to shut off the supply to line 14 and open a line 13 to supply pressure which acts to reset the dispensing valves, and upon further build-up of pressure in line 13 the valve 1 connects the line 2 directly to a relief line 12, which communicates with the reservoir, until the stroke of the plunger 4 is finished. The plunger 4 may be controlled remotely and manually or automatically and may be replaced by a multi-stroke pump. The flow directing valve 1 comprises a spring load three-landed piston having an axial bore 30 which opens into the reduced portion between the lands remote from an end part, to be connected to the supply line 2, and in the position shown, having a stop 26 abutting the casing and the line 2 communicating through one of the reduced portions of the piston with the line 14 leading to the dispensing valves, the line 13 being connected through the second raduced portion of the piston to the relief line 12. On pressure in the line 14 increasing, the piston is moved to the right by inlet pressure to shut off the supply to line 14 and place it in communication with the relief line 12 and to place line 13 in communication with the supply line 2, and further increase in pressure in the line 13 causes the piston to move further to the right so that supply pressure fluid is relieved into a chamber 19 in communication with the relief line 12. A non-return valve 11, being leaky, enables the valve piston to return to its initial position when the stroke of the plunger is completed. In Fig. la, not shown, a by-pass from the supply line communicates with the plunger cylinder only when the plunger is retracted to allow the return of the valve piston.
Patent GB-747546-A (GB)
Title: Improvements relating to electron discharge devices
IPC: H01J5/56
Filed: 1954-07-26
Abstract: 747,546. Caps for thermionic valves. GENERAL ELECTRIC CO. July 26, 1954 [July 27, 1953], No. 21756/54. Class 38 (1). To prevent corona discharge between the leadin conductors 10 of a discharge tube, the header 5 on the envelope is formed with bosses 7 surrounding the conductors and fitting into wells 9 in the cap 3, at the bottoms of which the pins 11 are secured by riveting over. Grommets 15 of resilient insulating material in the wells 9 are compressed round the conductors between the header and cap. In a modification, Fig. 4, a gasket 16 is compressed between the header and cap, portions thereof being pressed into the wells 9 by the bosses 7.