baber/WOPTO huggingface dataset:
Patent GB-109309-A (GB)
Title: Improvements in Air Guns.
Inventor: ROFE HENRY JAMES
IPC: F41B11/647
Filed: 1916-09-09
Abstract: 109,309. Rofe, H. J. Sept. 9, 1916 Pneumatic.-Relates to air-guns of the kind in which the spring is compressed by a hand-lever, and consists (1) in forming the breech-end of the barrel with a coned seating for the head of a sliding and rotating breech-bolt which is locked by a turning movement, and (2) of means for adjusting the initial compression of the actuating-spring. In the construction shown, the rear end of the air chamber D, which is arranged beneath and parallel to the barrel B, communicates with the barrel by a passage d and a recess b<2> in a bridgepiece b. The head of the breech-bolt C is conical and ground to make an air-tight fit in this bridgepiece. The spring F is put under initial compression by means of a screw plunger d<2> screwing into a plug d<1> which forms the front end of the air chamber. The cocking-lever may be adapted to fit into a recess in the.fore-end of the stock.
Patent GB-1081647-A (GB)
Title: Furan compounds
IPC: A23K1/165
Filed: 1966-03-23
Abstract: The invention comprises a compound of the formula <FORM:1081647/C2/1> wherein Q is a methyl, hydroxymethyl, an alkanoyloxymethyl having from 2-6 carbon atoms, formyl, an alkylenedioxymethyl group having 3 or 4 carbon atoms, X is an a -hydroxymethylene, b -hydroxymethylene, a -alkanoyloxymethylene having from 2-6 carbon atoms, b -alkanoyloxymethylene having from 2-6 carbon atoms, a -glycosyloxymethylene having up to 4 sugar units, b -glycosyloxymethylene having up to 4 sugar units, carbonyl or alkylenedioxy methylene group having 3 or 4 carbon atoms, Y and Y1 are each a hydrogen or hydroxy group, Z is a methylene, a -hydroxymethylene, b -hydroxymethylene, a -alkanoyloxymethylene having from 2-6 carbon atoms or b -alkanoyloxymethylene having from 2-6 carbon atoms and the ripple mark (#x) is a generic indication of a - and b -configurations, X being a carbonyl in the case of D 4-unsaturation and not being a carbonyl in the case of D 5-unsaturation, and a process for preparing furan compounds which comprises reducing an a ,b -unsaturated g -lactone compound with an aluminium compound of the following formula MnAlRmH(n+3)-m wherein M is an alkali metal, R is an alkyl group having up to 8 carbon atoms or an alkoxy group having up to 8 carbon atoms, n is 0 or 1 and m is an integer from 0 to 3 when n is O, and m is an integer from O to 4 when n is 1, in an inert solvent to obtain a furan compound. Preferred reducing agents are di-lower alkyl aluminium hydride or a tri-lower alkyl aluminium.  Pharmaceutical compositions having androgenic, anabolic or growth promoting activity and containing the above compounds may be administered orally or parenterally.
Patent GB-566435-A (GB)
Title: Shaft seals
IPC: F16J15/32
Filed: 1943-08-07
Abstract: 566,435. Oil seals. HAERLE, H. R., and AIR INDUSTRIAL DEVELOPMENTS, Ltd. Aug. 7, 1943, No. 12792. [Class 122 (v)] A shaft seal of the kind comprising a sealing portion 1, a holding portion 2 adapted to fit tightly the stationary member 6, and a reinforcement 8, is provided with a rigid reinforcement 3 constructed at 4 to form an abutment for a tool by which pressure may be applied to extract the seal,
Patent GB-708396-A (GB)
Title: Valve cotter remover
IPC: B25B27/24
Filed: 1952-05-22
Abstract: 708,396. Tools for catching removable cotters. HARMEN, L.M. May 22, 1952, No. 12921/52. Class 61 A tool for catching split cotters which are removed prior to the'dissembly of valve springs of internal combustion engines, comprises a cup A mounted on a handle D, the cup being slotted at E and jaws B<SP>1</SP>, B<SP>2</SP> being pivoted to the handle at C<SP>1</SP> and C<SP>2</SP> respectively. The jaws are urged into closed position by the spring H and in this position they cover the end of the slot E. To position the tool on a valve stem, the jaws are opened by pressing together their rear ends. The jaws have upturned ends F<SP>1</SP>, F<SP>2</SP> and projections G<SP>1</SP> and G<SP>2</SP> which sweep the cotters to the sides of the cup on opening the jaws to remove the tool from the valve stem. The tool is attached to the engine by a chain.
Patent GB-1528895-A (GB)
Title: Process and apparatus for the recovery of electrodeposited particulate crystalline metal product from an electrolysis system
IPC: C25C5/02
Filed: 1977-03-28
Abstract: 1528895 Recovering electro-deposited particulate crystalline metal DUVAL CORP 28 March 1977 12959/77 Heading C7B Particulate dendritic crystalline metal, e.g. Cu, Fe, Co, Ni, Ag, Au, Pd, Zn, Pt, Cd, is continuously recovered directly from an electrolytic cell tank 1 uncontaminated by adhering electrolyte by agitating the electrolyte (catholyte) 6 with a flexible arm 17 oscillating about shaft 18 on each side of each cathode 4 to control the crystalline size and density and cause the metal to separate from the cathodes, collecting the separated crystalline metal 22 on a conveyer belt 13 located in the bottom of the tank and transporting it through a washing zone 27 prior to its removal from the tank. For Cu production, the catholyte 6 comprises CuCl with NaCl, KCl, MgCl 2  and/or CaCl 2  fed via conduit 5 and removed via weir 8 and conduit 7 into anolyte sump 9 for transferring as anolyte 10 via conduit 12 into compartments formed by diaphragms 3 enclosing inert anodes 2 where CuCl is oxidized to CuCl 2 ; spent electrolyte overflows weir 13 to discharge via conduit 15.
Patent GB-1418444-A (GB)
Title: Loudspeaker assembly
IPC: H04R9/02
Filed: 1974-03-22
Abstract: 1418444 Loud-speakers GRUNDIG EMV ELEKTRO - MECHANISCHE VERSUCHSANSTALT MAX GRUNDIG 22 March 1974 [24 March 1973] 12969/74 Heading H4J A unitary loud-speaker assembly of a dome mid-frequency unit 1 and one or more dome high-frequency units 2 comprises an apertured common permanent magnet 3 with pole plates 4, 5 on opposed faces and carrying soft iron polepieces 6, 7 in respective apertures. The dome diaphragms 10, 11 may be separate or formed of a single piece of stiffened cloth or plastics material carrying coils 13, 14 and held in a frame 9, 15 attached to the magnet structure.
Patent GB-547647-A (GB)
Title: Improvements in and relating to furnace walls
IPC: F27D1/00
Filed: 1941-10-09
Abstract: 547,647. Furnace walls. SPENCER, H. W. (Bigelow, F. B.). Oct. 9, 1941, No. 13049. [Class 51 (i)] A furnace wall construction comprises columns 21, Fig. 1, carrying brackets 22 to receive horizontal supporting rods 23 between which are arranged rows of refractory blocks 24, 25 provided with recesses to engage with the rods on their lower and upper surfaces respectively. The adjoining surfaces of the blocks 24, 25 are in frictional engagement and may be recessed as shown at 30 to receive clay and at 130 to receive anchors of burnt fireclay. The supporting rods 23 may be hollow for the circulation of cooling fluid. Expansion joints are provided at 26 between each group of blocks between a pair of rods 23. Fig. 4 shows a modification wherein an intermediate row of blocks 38 is arranged between the blocks 37, 39 engaging with the rods 23. Anchors 131 of rectangular section are inserted in recesses 132 in the blocks. The wall may be built up of a number of panels formed, as shown in Fig. 13, of a rectangular frame 42, 43 secured to the columns 21 and provided with brackets 22 carrying rods 23 for engaging with recesses in the upper and lower surfaces of blocks 44, 45 respectively. The lowermost row of blocks is supported on a flange 41. The panels are secured at their edges. Fig. 19 shows an alternative form of panel member comprising a plate 51 with marginal flanges 52 and brackets 22 for the supporting rods.
Patent GB-118882-A (GB)
Title: Improvements in or connected with Capillary or Surface Tension Apparatus.
Inventor: PARNACOTT ALFRED EDMUND
IPC: G01N13/02
Filed: 1917-09-12
Abstract: 118,882. Parnacott, A. E. Sept. 12, 1917. Viscosimeters. - Apparatus for detecting leakages of air or for measuring the viscosity of liquids comprises a capillary space between a surface and a transparent plate, a thin film of liquid in the space, and means for admitting air or gas to the space. In the form shown in Fig. 1, for detecting leakage through sparking-plugs, the transparent plate c rests on a surface b of a member a connected to a tube j having a collar for a washer to make a sealed joint with the plug or plug-carrying member. In a viscosity meter, a film f<1>, Fig. 4, of the liquid to be tested is disposed between a transparent plate c' and the bottom of a jacketed cup a', variable air pressures being exerted on the film by varying the immersion of a calibrated tube j<1> in a vessel k. In a modification, the pressures are produced by a hand-pump, and the viscosity is indicated by a pressure gauge.
Patent GB-562641-A (GB)
Title: Manufacture of substantive disazo dyestuffs
IPC: C09B33/10
Filed: 1942-09-18
Abstract: Disazo dyes, capable of yielding copper complex compounds, are obtained by coupling, in an alkaline medium, a diazotised aniline o-carboxylic acid free from aroylamino groups (1 mol.) and diazotised 6-chloro-2-aminophenol-4-sulphonic acid (1 mol.) with a component (1 mol.) of the general formula <FORM:0562641/IV/1> wherein X represents CO or a cyanuryl residue, which may carry a halogen atom or, in place thereof, an organic or inorganic residue which does not participate in the formation of the dyestuff. Specified aniline-o-carboxylic acids are 2-aminobenzoic acid and its 5-chloro- and 5-nitro-derivatives.  Examples relate to the production of the dyestuffs, (1) 6-chloro-2-aminophenol - 4 - sulphonic acid (1 mol.) and 2-aminobenzoic acid (1 mol.) \sQ (alkaline) 5 : 51 - dihydroxy - 2 : 21 - dinaphthylurea - 7 : 71 - disulphonic acid (1 mol.), which may be coppered by heating for 2 hours in aqueous solution at 80-85 DEG  C. containing sodium acetate and copper sulphate; (2) 6-chloro-2-aminophenol-4-sulphonic acid (1 mol.) and 2-aminobenzoic acid (1 mol.) \sQ (alkaline) the condensation product from 2 : 5 : 7-aminonaphtholsulphonic acid (2 mols.) and cyanuric chloride (1 mol.), which may be coppered by heating for 3-4 hours in aqueous solution at 80-90 DEG  C. containing copper sulphate and pyridine; the coupling component may be replaced by the condensation product from 2 : 5 : 7-aminonaphtholsulphonic acid (2 mols.), ammonia or aniline (1 mol.) and cyanuric chloride (1 mol.); (3) 6 - chloro - 2 - aminophenol - 4 - sulphonic acid (1 mol.) and 5-nitro-2-aminobenzoic acid (1 mol.) \sQ (alkaline) 5 : 51-dihydroxy-2 : 21-dinaphthylurea-7 : 71-disulphonic acid (1 mol.), which may be coppered as in (1) or (2).  Specification 315,664, [Class 2 (iii)], is referred to.
Patent GB-566134-A (GB)
Title: Improvements in back-spacing mechanism for typewriters
IPC: B41J19/62
Filed: 1943-03-09
Abstract: 566,134. Typewriters. ROYAL TYPEWRITER CO., Inc. March 9, 1943, No. 13184/44. Convention date, June 19, 1942. Divided out of 564,112. [Class 100 (iv)] In a back-spacing mechanism for typewriters including an escapement wheel 101 rotated reversely by an actuator, a back-check pawl 132 is provided to prevent such reverse rotation, the pawl being rendered ineffective by the actuator. The escapement wheel 101 has only six teeth to provide a longer letter spacing for the wider type used in tape printing. This wheel is mounted on a bracket 104 carried by plates 106 connecting the rails 4 and is coaxial with a pinion in mesh with the carriage feed rack and engaged by a pawl 109 on wheel 101. The escapement frame 111 pivoted at 112 to bracket 104 carries a fixed dog 113 and a dog 114 pivoted at 115 and formed with a stop 116 engaging a frame arm 117, a spring arm 120 engaging heels 118, 119 on the dog. The backspacer consists of a slide 124 carrying a pawl 126 pivoted at 127 and provided with teeth 130, 131 which engage adjacent teeth of wheel 101 to ensure a full letter space. Pawl 126 has a lug 138 engaging an arm 137 on a check pawl 132 so as to allow the slide 124 to rotate wheel 101 reversely. Pawl 126 also has an ear 129 which engages the tail 144 of a lever 139 so as to rock the lever into rocking engagement with the pinion 103.
Patent GB-420669-A (GB)
Title: Improvements in or relating to wireless direction finding systems
IPC: G01S1/02
Filed: 1933-05-06
Abstract: 420,669. Directive wireless signalling. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, DOWSETT, H. M., 47, Drayton Gardens, Winchmore Hill, and WALKER, L. E. Q., 98, Wymering Mansions, Maida Vale, all in London. May 6, 1933, No. 13250. [Class 40 (v)] In a directionfinding system in which the transmitter radiates television signals corresponding to a picture giving an indication of the position of a rotating beam and the identity of the transmitter, said signals are transmitted from an omnidirectional aerial and are interrupted for a predetermined interval for each scanning operation during which arbitrarily chosen signals are radiated from the rotating beam aerial. As shown, a frame aerial 1 rotates with a scale 2, picture signals corresponding to that part of the scale indicating the direction of the aerial 1 and to a station identifying panel 3, being produced by a Nipkow disc 4 and light-sensitive cell 5 connected to a transmitter 6 and omni-directional aerial 7. Two of the apertures in the disc 4 are omitted so that two of the scanning lines in the picture reproduced at the receiver appear blank. In the intervals due to this omission the aerial 1 is energized from a, transmitter 10 modulated by a cell 9 which is illuminated by a lamp 8 through holes in the disc 4 when the cell 5 is unilluminated. At the receiver, the picture is traversed by a blank line which varies in brightness according to the position of the aerial 1 at the transmitter and hence enables its position to be determined. A mechanical commutator or other switching device prevents radiation from the aerials 1, 7 during the periods in which they are not being modulated by the scanning device. A common carrier source is preferably provided for the two transmitters. Specification 402,443 is referred to.
Patent GB-1198062-A (GB)
Title: Locating and Attachment Means for a Submersible Vehicle
IPC: E21B41/04
Filed: 1969-03-13
Abstract: 1,198,062. Submarine vessels. WESTING- HOUSE ELECTRIC CORP. 13 March, 1969 [18 Nov., 1968], No. 13257/69. Heading B7A. A submarine vessel 22 is equipped with grippers 36, 37 on a manipulative assembly comprising jacks 30, 32, 40 designed to lock on to an underwater structure 10 (Specification 1,189,968). A chamber 24 is also carried and is secured into place at 20 by the submarine. In (Fig. 8) an alternative chamber (74) is carried and is screwed into place at 20 and the submarine vessel carries a peg-type ratchet operated from within the submarine.
Patent GB-1018333-A (GB)
Title: A self-contained rotary pump and valve unit
IPC: F23K5/14
Filed: 1964-03-31
Abstract: 1,018,333. Combined rotary pump and valve units. A. B. IMO-INDUSTRIE. March 31, 1964 [April 1, 1963], No. 13259/64. Heading F1F. A self-contained rotary pump and valve unit, comprises a valve housing 1, Figs. 1 and 2 (not shown), partitioned to provide two parallel flow-paths to and from a pair of pump housings 2, 3 mounted on either side of the valve housing and each containing an intermeshing screw pump 53a driven by an electric motor 48. In each flow-path between a valve inlet chamber 7 and a pump inlet chamber 50 is fitted a screw-down inlet valve 23 and between each pump outlet chamber 51 and a valve outlet chamber 12 a screw-down outlet valve 26 so that only one pump is operated at any one time. The valves in the flow-path to and from the inoperative pump being closed to permit any servicing or repairs to be carried out on that pump. The outlet valves 26 may have limited axial movement within their valve spindles 30 so that they may function as non-return valves. It then being unnecessary to screw the valve 26 on to its seat to close it. A pressure gauge 41 connected to the valve inlet and outlet chambers and a pressure relief valve 52 may also be fitted.
Patent GB-753699-A (GB)
Title: Improvements in valves
IPC: F15B7/10
Filed: 1954-05-06
Abstract: 753,699. Hydraulic brakes. SCHAFER INDUSTRIEGES. SCHWEINFURT, MBH. May 6, 1954 [May 11, 1953], No. 13300/54. Class 103 (1). [Also in Group XXIX] In a check valve arranged between the brake fluid reservoir 3 and the master cylinder 2 of a hydraulic braking system, a valve member 9 of rubber or like resilient material fits between a valve body 8 having one or more fluid passages 16, and an apertured support 10 arranged at a fixed distance from the body so that the peripheral part of the valve member cooperates with the body to open and close the valve, the valve member is guided by a cylindrical projection 11 co-operating with a corresponding recess, and the valve member and the support are so shaped that at least some of the apertures of the support are unobstructed in all positions of the valve member. The form shown in Fig. 1 has a central projection 11 on the side facing the valve body slidably guided in a recess 13 having a vent 14. The projection 11 is surrounded by a sheet metal washer 15 which is adapted to obturate the passages 16. The washer 15 may be formed with a central collar press fitted over the extension 11. The valve member 9 has a central cylindrical base portion 12 projecting from the side facing the support 10. The peripheral part of the valve body engaged by the valve member has a conical surface 18 towards the valve member. In modifications the surface 18 is replaced by a flat surface engaged by a valve member which is concave, conical, or cup-shaped. The base portion 12 may be dispensed with and the central part of the valve member may be engaged by a cuplike depression 48, Fig. 11, in the support. The support may be clamped against a shoulder in a fixed part by an annular projection on the valve body. Alternatively, the support itself may be cup-shaped and have a peripheral flange for engagement by the valve body. Fig. 12 shows a self contained unit in which the valve body 65 has a polygonal recess 69 for engagement by a suitable tool to instal the unit in a body casting 70. The support 61 is in the form of an annular channel with an inner wall 62 which surrounds and supports the base portion 63 of the valve member, and an outer wall 621 which is turned in over a bead on the valve body. The valve member may be made of a suitable polymerization product.
Patent GB-133082-A (GB)
IPC: F02M21/10
Abstract: 133,082. Rector, E. Oct. 16, 1916, [Convention date]. Vaporizers, external.-A vaporizer, comprising a coil 40 which terminates in a ribbed cross-shaped pipe 37, is mounted in a casing open at the bottom and heated by a burner 14. Both burner and coil are supplied with oil by a pump 9 through pipes 46, 47 respectively. The vapour issues from nozzles 32 at the end of the pipe 37 into an annular chamber 17 open at the bottom for the admission of air, and the mixture of air and vapour passes to the engine under the control of a throttle valve 30 which is connected to a valve 48 in the delivery pipe 45 of the pump 9. The burner has a pilot-jet supplied with oil by a pipe 52 from near the pump intake, so that when the oil flows through the pump, it ceases to flow to the pilot burner.
Patent GB-1135718-A (GB)
Title: Code translator
IPC: H03M7/00
Filed: 1967-03-22
Abstract: 1,135,718. Codes. INTERNATIONAL STANDARD ELECTRIC CORP. 22 March, 1967 [29 March, 1966], No. 13459/67. Heading G4H. A coder for translating an n-digit code into another n-digit code includes three translating circuits which each translate an applied n-digit code into another n-digit code, the input signal being selectively fed to the circuits under the control of a programme stored in a memory. In the embodiment described (Fig. 6) the transformation which it is required to perform and which is the product of three transformations P, Q, R which are affected by circuits 20, 21, 22 is fed via a register 49 and AND gates 48 into the register 47 of a ferromagnetic matrix memory 50 causing read out in a subsequent time interval of one twenty-four bit row of the memory. Each two bits of the row represent one of the transformations P, Q, R and the contents of the register 43 are transferred to a shift register 40 which is shifted two bits at a time to successively enter the bits representing the transformation into a decoding circuit 39. The decoding circuit 39 enables one of the AND gates 32, 33, 34 to enable an n-digit number entered via OR gate 36 into a register 23 to be transformed in the associated circuit 20, 21, or 22 and then fed back into the register 23 to be operated on again in accordance with the next two bit digit entered into decoder 39. When two zero bits are stored in the left hand side of shift register 40, indicating that the programme is complete an output signal Fi from the decoder 39 enables an AND gate 37 so that the transformed n-digit code may be read out. If the programme comprises more than 12 successive transformations, it is stored in successive lines of the memory 50.
Patent GB-134679-A (GB)
IPC: F41A25/14
Abstract: 134,679. Armstrong, Whitworth, & Co., Sir W. G., Hadcock, A. G., and Forster, G. Dec. 19, 1918. Recoil apparatus.-Relates to automatic means for adjusting the recoil and run-out springs of guns firing at large angles of elevation and depression in accordance with the elevation (positive or negative). According to the invention, the recoil spring E is located in a casing D, slidably mounted in the cradle B or alternatively arranged around the gun barrel A, and a run-out cushioning-spring J is arranged within the same casing, and bears at one end against the front portion of the piston-rod F and at the other end, through an intermediate sleeve H, against the front cap of the casing D. The casing is connected by a rod or rods P with a non-elevating part N of the gunmounting L. The result is that as the elevation increases, the casing D is slidden forwards imparting additional compression to the recoil spring E, and relieving the compression of the run-out cushioning-spring J. The reverse effect is produced when the gun is depressed. The rod P may be substituted by a vertical eccentric cam on the mounting against which a stud on the casing D bears. According to the Provisional Specification, a liquid buffer may be used at each end of the recoil and run-out cylinder.
Patent GB-437671-A (GB)
Title: Improvements in or relating to thermionic oscillation generators
IPC: H03B5/16
Filed: 1934-05-04
Abstract: 437,671. Valve generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London, and MOULLIN, E. B., 189, Morrell Avenue, Oxford. May 4, 1934, No. 13557. [Class 40 (v)] A back-coupled oscillator is so arranged that exact anti-phase is produced between grid and anode voltages with consequent frequency stability. The resonant frequencydetermining circuit comprises two arms connected in parallel between anode A and cathode K, one arm including inductance LI, resistance R1, and condenser C1, the other arm including condenser C2, inductance L2, and resistance R2, each in the order named. The resistances may be inherent in the inductance coils. At the resonant frequency one arm has inductive reactance, the other capacitative. The resistances are equal and the ratio of L2 to L1 is the same as the ratio of C2 to Cl. A high resistance B is connected between the junction y of C2 and L2 and a tapping x on the resistance R1, the tapping x being so chosen that the voltage across xy is in phase quadrature with that across the anode and cathode. The mid-point M of the resistance B is connected to the grid through a condenser BC, a grid leak GL being provided. A large condenser may be connected between the tap x and the resistance B, and the grid-leak and condenser BC may then be omitted. The anode battery may be connected through a choke CH to a point below the resistance R1, or to the tap x on R1, or to the anode. If the oscillation frequency is to be varied, the condensers C1, C2 and/or the coils L1, L2 may be made variable and gang-controlled, but the ratio of C1 to C2 must be maintained equal to the ratio of L1 to L2. Specification 415,716 is referred to.