baber/WOPTO huggingface dataset:
Patent GB-674830-A (GB)
Title: Improvements in or relating to suppression control circuit arrangements for signal receivers
Inventor: WATT JAMES
IPC: G01S1/72
Filed: 1947-04-25
Abstract: 674,830. Echo-sounding and distancemeasuring apparatus. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Feb. 3, 1948. [April 25, 1947] No. 11172/47. Class 118 (ii). [Also in Group XL (c)] A signal receiver, closely associated with a signal transmitter, has means for rendering it insensitive during times when the transmitter is transmitting, and has further means in the signal channel for suppressing surges which may be engendered by said suppression means, both said means being controlled by signal energy in the transmission member of the transmitter. The Specification describes a supersonic echo-sounding installation which measures the strength of received echoes. The electric pulses produced by the echoes received at a transducer 1 are amplified at V1, and rectified at V2 to apply negative bias to a final valve V3 in a bridge network. The bridge is thereby unbalanced and current flows in a milliameter M proportional to the peak echo voltage developed at the cathode of V2. In order to transmit a pulse, the mercury pool cold cathode tube 6 is triggered and discharges a condenser (not shown) through the main anode 8, cathode 7 and the transducer 1 in known manner. At the same time a normally charged condenser 20 discharges via an auxilliary anode 9 and the cathode 7, reducing the positive plate of a further condenser 18 to earth potential and applying a negative cut-off potential to the grid 15 of the rectifier valve V2. No signals pass the valve V2 therefore while a pulse is being transmitted. During transmission a further auxiliary anode 5 suppresses the receiver by short-circuiting the input valve V1. Since no current flows through the rectifier V2 other than that due to received signals, any surges which arise when the short circuit is applied to or removed from the valve VI have no effect on the measuring circuit. An a.g.c. circuit is described in which the output of the rectifier valve V2 is fed back via a timeconstant circuit as a bias control for the input valve V1. Thus a.g.c. is inoperative during transmission and for a short time following determined by the parameters of the grid circuit of the rectifier V2, and the gain is unaffected by direct reception of the transmitted pulse or by echoes from very near objects.
Patent GB-202677-A (GB)
Title: Improvements in the "smallman" haulage clip
IPC: B66C1/00
Filed: 1922-04-21
Abstract: 202,677. Bullock, R. C., and Smallman, J. W. April 21, 1922. Rope grips.-The head of the lever D of the Smallman " rope grip is recessed on each side to accommodate blocks B which are secured together by a rivet C and bear against inclines on the cheeks of the gripping jaws. The blocks are of different metal to that of the cheeks, being preferably of phosphor bronze or malleable iron while the cheeks are of mild steel. When the inclines of the cheeks are worn, thicker blocks B, may be employed to compensate therefor.
Patent GB-527723-A (GB)
Title: Improvements in or relating to rate of climb or descent indicators for aircraft
IPC: G04B37/10
Filed: 1939-04-13
Abstract: 527,723. Rate of change of pressure indicators. COSTA, H. DA, and PLESSEY, CO., Ltd. April 13, 1939, No. 11245. [Class 106 (ii)] A barometric capsule 12 is supported inside a casing 10 which is sealed except for communication with the atmosphere at 11. A small opening in the base of the capsule is normally closed by a conical valve 16 pressed by a spring 18 the valve being continuously operated by a cam 19 on a shaft 20 driven by clockwork 22 so as to be opened and closed periodically. On a sudden rise of the aircraft, the pressure inside the capsule is greater than outside and the capsule expands turning an indicating needle 15. The valve 16 opens periodically and the pressure inside and outside the capsule equalize or tend to. The linkage between capsule and needle 15 contains an elastic link to cushion shocks. In a modification the capsule is open to atmosphere and the valve is fitted to the casing.
Patent GB-1366765-A (GB)
Title: Exhaust control device
IPC: H01H33/58
Filed: 1972-03-10
Abstract: 1366765 Fusible cut-outs S & C ELECTRIC CO 10 March 1972 [26 Oct 1971] 11388/72 Heading H2G An exhaust control device for a circuit interrupter comprises a housing containing spherical pellets one end of the housing being connected to the circuit interrupter so as to receive any exhaust, and the other end'being closed by a vented'plate, and the pellets being of activated alumina, tabular alumina or hydrated alumina in a size range between one sixteenth and three sixteenths of an inch. In one embodiment of the invention a fuse holder 17 is mounted, via terminals 15 and 16, on insulators attached to a base. A spring 21 and flexible conductor 22 connect the upper terminal of the fuse with a spring, and cable fastener 23 which forms a part of a replaceable cartridge 24. A rod like terminal 25 is connected at one end to the spring and cable fastener 23 and at the other end to a fusible element 26. A strain element assembly 31 in parallel with 25 is included in the cartridge. Melting of the fusible element 26 allows the terminal rod 25 to be withdrawn by the spring 21 through the arc extinguishing material 30 which may be of boric acid. A closure disc 34 is held in place by a snap lock spring. 52 is a metallic heat absorbent material which may be of annular section and in the form of a wire screen or perforated spaced apart copper discs. Any products not trapped within the shell 43 pass through the disc 56 into the cylindrical extension 61 containing pellets 67. The activated alumina may be in the form of a granular desiccant formed into pellets. Metallic filters 73, e.g. of sintered bronze having a filtration rating in the range 50-500 microns can be provided in the closure disc 69, which may be welded in place. In a second embodiment of the invention the exhaust control device 19 is attached at right angles to the fuse cartridge. A conical metallic, deflector bolted to the exhaust device, and having its axis coincident withthat of the cartridge fuse and its apex towards the cartridge fuse deflects exhaust laterally towards exhaust filters as used before, but situated on both sides of the deflector. As an alternative to using filters 73 a number of vents, e.g. 30 ranging in diameter from <1>/32 inch to <1>/16 inch maybe formed in the wall of the housing containing the heat absorbing material.
Patent GB-527583-A (GB)
Title: Improvements relating to conducting-liquid switches
IPC: H01H1/08
Filed: 1939-04-15
Abstract: 527,583. Mercury switches. ROSSI, S. April 15, 1939, No. 11498. [Class 38 (v)] A mercury or like liquid switch comprises two insulating parts relatively slidable on each other, there being in the contacting surfaces, cavities each containing mercury and the end of a leading-in wire or terminal, so that by relative movement the cavities in the two parts may be made selectively to lie one over the other to effect desired connections between one of the cavities in one part with others in the same part. In Fig. 4 a casing 23 has secured to it the flange of a disc 21, having an annular cavity 9 and one or more cavities 10 arranged around it. Each of the cavities contains mercury and a terminal screw in contact therewith. The terminal leading into the cavity 9 has an external connection a and each of the terminals in the cavities 10 a separate wire b. Spring-pressed on the disc 21 is a disc 22 rotatable by a spindle 6. A cavity 11 filled with mercury is electrically connected to a pin dipping into the mercury in the annulus 9 by a bridge 12. By rotating the disc 22 the lead a may be put selectively in connection with any of the leads b.
Patent GB-904421-A (GB)
Title: Polymerization of butadiene and catalysts therefor
IPC: C08F136/06
Filed: 1960-04-01
Abstract: Polybutadiene, of largely cis-1-4 configuration, is produced by contacting butadiene with a catalyst which is a reaction product of an aluminium alkyl with TiCl4 and I2 and in which the ratio of moles aluminium alkyl: moles TiCl4 is 1:1 to 30:1 and the ratio of granatoms I2:moles TiCl4 is 0,25:1 to 50:1 the "moles aluminium alkyl" being the sum of the moles of aluminium trialkyls, plus 2/3 of the moles of aluminium dialkyls, plus 1/3 of the moles of aluminium monoalkyls in the system.  A trace of oxygen-containing gas is an optional additive.  The liquid phase may be removed after the aluminium alkyl-TiCl4 reaction, additional aluminium alkyl being added so as to bring the required ratio to that stated, inclusive of the original aluminium alkyl.  Many suitable aluminium alkyl compounds are mentioned and it is stated that when the catalyst is prepared in two stages other reducing agents may replace the aluminium compound in the first stage.
Patent GB-1064599-A (GB)
Title: Novel steroid compounds, processes for their preparation, and compositions incorporating them
IPC: C07J75/00
Filed: 1966-03-16
Abstract: Novel 5b -androst-16-en-11-ones having the general formula <F\1> wherein R represents hydrogen or an acyl group derived from an organic carboxylic acid having from 1-10 carbon atoms and X represents chlorine, bromine or iodine, are obtained by reacting 17-hydrazo-3a -hydroxy-5b -androst-11-one with a halogenating agent in the presence of a tertiary nitrogenous base to form the desired 17-halogeno-3a -hydroxy-5b -androst-16-en-11-one. The starting 17-hydrazo compound may be prepared by reacting 3a -hydroxy - b  - androst - 11,17 - dione with hydrazine, hydrazine hydrate or a salt of hydrazine.  Acylation may be effected in 3-position. Pharmaceutical compositions, having a neuro tropic and depressive effect on the central nervous system and containing the com pounds of the invention, are administered orally, parenterally or in the form of a sup pository.
Patent GB-115676-A (GB)
IPC: A43B13/00
Abstract: 115,676. Bartels, R. E. May 14, 1917. Soles; stiffeners.-The sole and a metallic shank stiffener for a boot or shoe are assembled when flat and then moulded together to the desired shape In one form of the invention, a sole a, Fig. 3, channeled as ordinarily and bevelled at ts rear end to fit the usual heel extension is grooved to receive a metal shank stiffener g. The stiffener is secured in place by fastenings h, and the parts are then moulded to shape between dies i, j, Fig. 5. The heel extension is then secured to the sole by staples &c. After the sole has been moulded it may be damped to permit turning of the channel without causing any distortion.
Patent GB-284116-A (GB)
Title: Improvements in turbines
IPC: F01D1/28
Filed: 1927-04-30
Abstract: 284,116. Bonom, A. April 30, 1927. Stuffing-boxes, substitutes for.-In a radialflow turbine with two oppositely running rotors the chief elements of the turbine, including the labyrinth packing members, are assembled by screwing on in the direction of the turbine axis and concentrically thereto. Labyrinth packing rings 90, 98 are screwed on both rotors 20, 54 and co-operate with corresponding labyrinth packing rings 91, 99 screwed on the casing wall 3 and on a disc 27 which is attached to the rotor 20 to enclose the rotor 54. The packing grooves are inclined against the steam flow and the outer edges are bevelled. Shaft packings 84, 81 are provided between the two shafts 12, 21 and between the shaft 21 and the bearing housing 5.
Patent GB-1199811-A (GB)
Title: Production of Nitrogen-Containing Compounds
Inventor: COMYNS ALAN EDWARD
IPC: C01B21/076
Filed: 1968-03-09
Abstract: 1,199,811. Discharge in gases. BRITISH TITAN PRODUCTS CO. Ltd. 4 Feb., 1969 [9 March, 1968], No. 11634/68. Heading H5H. [Also in Division C1] An apparatus is described for the production of nitrides by establishing a high energy electrical discharge in a stream of a vaporized halide (Al, Si, B, Zr or Ti) or in a mixture of the halide and an inert gas, in order to heat the halide and then reacting the heated halide with ammonia. Preferably the heating of the halide is effected in a volume of plasma which is maintained in a gas-containing tube having heat-resistant walls (e.g. of silica) by the passage of a R/F oscillatory electric current around the tube in order to introduce in the halide an area of electrical discharge of sufficient energy to heat the gas stream. The gasconfining tube may be surrounded over at least a portion of its surface with a coil of an electrically conducting material, e.g. a coil of copper tube. In Fig. 1 (not shown), the gas confining tube (1) has a copper coil (2) surrounding a portion of its surface connected to a source of R/F oscillatory electric current. The tube is provided with a gas distribution head (3) and the whole is mounted on a silica reactor (4) having an exit tube (5) passing through a water-cooled condenser (6) to a filter (7). The tube (8) allows agglomeration of the product particles before filtering. The bag filter is connected to a scrubber (12) filled with NaOH solution to remove acidic by-products from the gas stream prior to discharge through vent (15). Halide contained in vessel (76) passes through vaporizer (20) to distribution head (3) which is supplied with a further inlet (25) through which an inert gas may be fed to initiate a plasma. The distribution head is so designed to introduce the stream of halide vapour or mixture thereof with an inert gas into the high energy electric discharge in such a manner that the stream follows a helical path. A gas distribution head for use with a titanium halide (Fig. 2, not shown), is equipped with a probe through which the halide is introduced and which terminates part of the way through the electric discharge so that the halide is mixed with already heated inert gas. Ammonia is introduced through vent (24) into the heated halide or halide/inert gas mixture.
Patent GB-1367343-A (GB)
Title: Gearing
IPC: F02C7/36
Filed: 1972-04-27
Abstract: 1367343 Toothed gearing DEFENCE SECRETARY OF STATE FOR 27 April 1972 [27 April 1971] 11727/71 Heading F2Q In a gear train comprising a sun-wheel 10, a plurality of planet wheels 11 and a toothed annulus 18, all of which have single helical teeth, each of the planet wheels having a bearing surface and having its centre of gravity disposed relative to the bearing surface such that the centrifugal load on the planet wheel provides a couple acting on the planet wheel in opposition to the tipping couple or the planet wheels due to the helix angle of the gears. The balancing couple may be provided by an additional weight 35 on one axial end of the planet wheel. Alternatively the bearing may overhang the toothed portion of the pinion.
Patent GB-1031381-A (GB)
Title: Improvements relating to digital function generators
Inventor: RUBIN HERMAN EDMOND
IPC: G11C17/02
Filed: 1962-03-28
Abstract: 1,031,381. Printed circuits. ELECTRIC & MUSICAL INDUSTRIES Ltd. March 26, 1963 [March 28, 1962], No. 11797/62. Heading H1R. [Also in Division G4] A digital function generator consists of two insulating layers 2, 4, on a copper plate 1, a set of conductors 3, each having one end connected to the plate directly and the other end connected to the plate through a corresponding amplifier, and a second set of conductors 5, each having one end connected to the plate. Pulses which may be derived from magnetic cores, are applied between the free ends of the conductors 5 and the plate 1. A pulse on a conductor 5 induces a current one way or the other in adjacent conductors 3, each conductor 5 being shaped to give different combinations of outputs from conductors 3. The conductors 5 may consist of discontinuous deposits of conductive material A, B (Fig. 2, not shown), the required path being selected by stencilling connecting links of conductive material C in appropriate positions. Other arrangements of the deposits A, B, may be used (Fig. 3, not shown).
Patent GB-418310-A (GB)
Title: Improvements in or relating to arrangements for the control of power factor of electric circuits
IPC: H05B6/08
Filed: 1933-04-22
Abstract: 418,310. Supply systems. KUYSER, J. A., Knowle Lodge, Sibson Road, Sale, Cheshire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. April 22, 1933, No. 11807. [Class 38 (iv).] In an arrangement for controlling the power factor of an electric power circuit, the inductive portion of the load is shunted with one or more circuits containing capacitance and resistance, the resistance being subsequently cut out. The resistance is given a value Xc/#N in order that the surge incident upon the introduction of both capacitance and resistance should become roughly equal to the surge incident upon the cutting out of the resistance, Xc is the value of the capacity reactance and N is the ratio of the highest momentary peak value of current which can occur when the capacitance is switched directly into the shunt circuit, to the normal peak value of current. The resistance can also be cut out in sections so that the whole of the different surges of current produced are of approximately the same value.
Patent GB-1487290-A (GB)
Title: Adjustable steering column assembly
IPC: B62D1/184
Filed: 1976-03-24
Abstract: 1487290 Adjusting steering columns CATERPILLAR TRACTOR CO 24 March 1976 [11 July 1975] 11826/76 Heading B7H In vehicle steering apparatus pivotal adjustment of column assembly 15 with respect to a stationary support 10 does not actuate a steering valve 14 which is operatively connected to the steering handle 13. As shown in Fig. 1, rotation of steering shaft 20 causes pivoting of bell crank 30 via link 24. Bellcrank 30 pivotally mounted to the column assembly 15 by pivot means 31 in turn actuates steering valve 14 via push pull cable 36. The cable 36 is connected to bellcrank 30 by a ball-and-socket connection 37 which has a pivot axis substantially coincident with the pivot axis of assembly 15 with respect to support 10. This arrangement ensures that valve 14 is not actuated upon adjustment of assembly 15. A self centring means 40, Figs. 4, 5, comprises a rod 41 pivotally connected to bellcrank 30 and reciprocal in aperture 43 formed in a fixed guide bracket 44. A coil spring arrangement 50, 51 biases the rod 41 which automatically returns the steering handle 13 and valve spool 38 to their neutral conditions. A holding arrangement (52) Fig. 6 (not shown) is provided for releasably holding assembly 15 in three separate positions on the housing 10.
Patent GB-885586-A (GB)
Title: Improvements relating to folding caravans
IPC: B60P3/34
Filed: 1958-04-14
Abstract: 885,586. Collapsible caravans. MARCEL, J. M. April 14, 1958 [April 13, 1957], No. 11871/58. Class 108(1). The end wall 35 of a collapsible caravan is hinged at 36 to the chassis and completely covers the rest of the caravan when collapsed. The roof part 25 is carried on pairs of hinged side panels 19 hinged together at 20 and to the chassis at 21 and at its upper forward corners the roof part 25 carries rollers which engage tracks 55 carried by the end wall 35 so that as the end wall is rotated the roof 25 and side walls 19 are automatically erected.
Patent GB-1496562-A (GB)
Title: Rock drilling apparatus
IPC: E21B6/00
Filed: 1975-03-21
Abstract: 1496562 Rotary-percussion drill LINDENALIMAK AB 21 March 1975 11915/75 Heading B4C [Also in Division B3] In a rock drilling apparatus having an hydraulically operable rotary motor 6 and an hydraulically operable percussion motor, the motors have separate hydraulic circuits and a control valve 42 is provided for controlling the amount of driving energy supplied by the pressure liquid to an impact piston 14 of the percussion motor in response to the pressure at the high pressure side 23 of the hydraulic circuit of the rotary motor which is dependent on the resistance to rotation of the drill. A distribution valve 32 in the hydraulic circuit of the percussion motor alternately connects pressure chambers 18, 20 to the high and low pressure sides 26 or 27 of the circuit. In the embodiment shown the control valve 42 has a spring-biased tapered piston 76, and is arranged to open and close a pressure supply line 40 to a control input 38 of the distribution valve in response to the pressures at the high pressure sides 23, 26 of both hydraulic circuits. Numerous alternative arrangements of control valve, distribution valve and percussion motor are disclosed.
Patent GB-312598-A (GB)
Title: Improvements relating to the electro-deposition of metals
IPC: C25C7/00
Filed: 1928-02-25
Abstract: 312,598. Electro Bleach & By-Products, Ltd., Hollins, J., and Jepson, D. Feb. 25, 1928. Divided on 312,395. Metals, depositing; electrolytes, circulating, purifying, and heating; supporting electrodes.-In the electro-deposition of metals a local circulation is imparted to the electrolyte in the anode compartment in addition to the circulation throughout the cell in order to promote the washing of sludge from the anode material. In the apparatus shown the electrolyte is circulated by a pump h through a filter j and heater k controlled by a thermostat m to the bottom of the cathode chamber and passes over the notched upper end of the diaphragm d to the surrounding anode chamber containing scrap n from which it passes to a trap g. Part of the electrolyte is raised by a pump t and returned by a distributing head u. The trap g is provided with a blow-off connection. The scrap material n is mounted on a number of glass balls o carried by a grid p.
Patent GB-685047-A (GB)
Title: Improvements in or relating to vehicle jacks
IPC: B60B39/12
Filed: 1949-05-05
Abstract: 685,047. Lifting-jacks. TEMPLE, P. L. May 5, 1950. [May 5, 1949] No. 11981/49. Class 78 (iii). [Also in Group XXXI] For a vehicle having a roller or the like and road wheels which alternatively engage the ground, a jack comprises the chassis frame of the vehicle, an arm pivotally mounted on the frame and on which one of the road wheels is mounted, a hand lever pivotally mounted on the frame, and a link pivoted on the arm and connecting it to the hand lever, the arrangement being so that when the road wheel is in the raised position and the hand lever is pivoted in one direction, about its pivot, the pivot connecting the link to the arm is lowered so that the arm is lowered by pivotal movement in the reverse direction until the wheel rests on the ground and on further movement of the hand lever in the same direction the link turns on its pivot thereby raising the pivot on which the lever is mounted and consequently the frame. As shown, the vehicle can either be supported on the roller (not shown) or road wheels 1a (only one wheel being shown) provided at the sides. Each wheel la has its axle 1 mounted on the arm 2 pivoted at 3a to the frame (not shown). Pivoted at 4a on the arm 2 is the link 4 which is pivoted at 5b to a link 5 which is pivoted at 5a to the vehicle frame. Fixed to the link 5 is the hand lever 6. In the position shown the wheel 1a is not in engagement with the ground, the vehicle being supported by the - roller. When the lever 6 is moved anticlockwise about the pivot 5a, the link 4 moves downwardly, thereby pivoting the arm 2 clockwise about its pivot 3a' until the wheel 1a contacts the ground. Progressive movement of the lever 6 then raises the frame and the roller relative to the ground, the lever 6 pivoting about 4a, the parts can then be locked in the roller-raised position by means of a pivoted catch in the form of a loop 7 mounted on the link 5 engaging a projection 8. In the position shown the parts are held in position by the loop 7 engaging a shoulder 9 on the arm 2.