baber/WOPTO huggingface dataset:
Patent GB-949420-A (GB)
Title: Improvements in jacks
IPC: E02B17/08
Filed: 1962-05-16
Abstract: 949,420. Jacks; climbing tower cranes. BYGGFORBATTRING A.B. May 16, 1962 [May 17, 1961], No. 18858/62. Headings B8B and B8J. [Also in Division E1] A jack which is displaceable along a rod or the like to lift or lower a load supported on the jack or secured to the rod comprises a pair of U-shaped gripping heads 3a, 3b, Fig. 4, connected together by jacks 8a, 8b, and springs 7, Fig. 1, and each provided with gripping wedges 9a, 9b mounted on the inside of the U-legs of the gripping head and adapted to be displaced towards one another for gripping the rod so that the jack may be mounted on the rod or the like from the side. In the embodiment shown in Fig. 1, the wedges 9a, 9b are urged downwardly by springs 11 so that when pressure is applied to the jack cylinders 8b to raise a load secured to the rod 1, the wedges 9a grip the rod as the head 3a is raised and the wedges 9b slide up the inclined surfaces on the head 3b to release the rod. When the pressure is then reduced in the cylinders 8b, the wedges 9b grip the rod, the wedges 9a release the rod and the head 3a is lowered to the initial position and the cycle is repeated. To lower a load secured to the rod 1, the wedges 9a are displaced from the rod by members 12, each having an inclined surface 6 adapted to engage and raise a pin 10 on the wedge as the member 12 is moved outwardly by rotation of a shaft 14 provided with a pin 4 engaging in a slot in the member 12. The jacks are then almost fully extended and the members 12 bring the wedges 9a into engagement with the rod and the jacks are fully extended to cause the wedges 9a to grip the rod. The wedges 9b are then disengaged from the rod and the jacks are retracted so that the wedges 9a together with the rod 1 are lowered, whereafter the wedges 9b are caused to grip the rod and the cycle is repeated. In operation, with the load attached to the climbing jack, the device is inserted on the rod. In a second embodiment, Figs. 5, 6 (not shown), the springs 11 are omitted, the wedges 9a, 9b are connected by rods each pivoted at one end to a wedge 9b and coupled through a lost motion device to a wedge 9a and the wedges are provided with locking devices coupled to the rods whereby the wedges are automatically engaged with or disengaged from the rod 1 as the jacks are actuated. The rod 1 may have other than a round or square cross-section, Fig. 9 (not shown). Cranes.-To raise a tower crane, Fig. 7, provided with rods 1, jacks are mounted on a support 19 at the uppermost floor level and engaged with the rods. The crane is raised to a position above the desired level and then lowered on to a floor slab 22 whereafter the jacks may be removed from the rods 1.
Patent GB-710112-A (GB)
Title: Improvements in or relating to electrical attenuators
Inventor: HOULDIN JOSEPH ERIC
IPC: H03H7/24
Filed: 1951-08-10
Abstract: 710,112. Impedance networks. GENERAL ELECTRIC CO., Ltd. Aug. 11, 1952 [Aug. 10, 1951], No. 18885/51. Class 40 (8) A variable electric attenuator in which, over a range of frequencies, the attenuation is independent of frequency, comprises an input circuit which is mainly resistive over the range and a circuit connected to output which is mainly resistive over the range, there being variable mutual capacitative coupling between the two circuits. As shown the input circuit comprises resistor 4 of resistance R1, metal member 3 and the capacitance coupling Cl between member 3 and metal tube 1. Sliding inside tube 1 is a further metal tube 8 inside which lies a length of coaxial cable 9, the inner and outer conductors of which constitute the output terminals of the attenuator. The end 12 of the cable 9 has a cartridge type resistor 13 of resistance R2, connected between the inner and outer conductors of resistance equal to the characteristic impedance of cable 9. A further metal member 16 is connected to the inner conductor 14 and the capacity between the members 3 and 16 is varied by sliding tube 8 and the coaxial cable 9 connected to it, relative to the tube 1. The reactance of capacity C1 should be less than R1/7 and that of the capacity between member 16 and tubes 1 and 8 should be greater than 7R2 over the range of frequencies. Specific dimensions are given for an attenuator to be used in the range 50 to 120 megacycles per second.
Patent GB-932945-A (GB)
Title: Improvements in electrolytic apparatus
Inventor: EVANS DAVID JOHNSON
IPC: C25B9/17
Filed: 1959-06-03
Abstract: 932,945. Electrolytic cells. DAVID J. EVANS (RESEARCH) Ltd. June 29, 1960 [June 3, 1959], No. 18951/59. Class 41. An electrolytic apparatus, for producing chlorine or hypochlorite either directly in large volumes of sea-water or for small-scale sterilizing purposes, comprises electrodes which consist of thin titanium sheets coated with platinium on their upper faces, supported as a stack with the electrodes inclined at an angle and suitably spaced apart. As shown in Figs. 1 and 2, the electrodes may take the form of flat rectangular sheets 10 mounted between two former plates 11, which are arcuate in section and have parallel and vertical inner faces formed with parallel grooves 12 inclined at 45 degrees, the two end electrodes with backing discs 13 being secured to bevel-faced blocks 15 having current lead-in rods 16, the whole assembly being slidably fitted into a tubular housing 17, such as made of polyvinyl chloride, closed at its ends by cover-plates 23 but having inlet- and outlet connections 25 and 26 at opposite ends for the electrolyte. Alternatively, as shown in Fig. 3, they may take the form of dished plates or discs 30 of frusto-conical shape with central apertures the edges of which are supported with interposed spacing washers 32 upon a vertical central tube 31 such as made of silica glass through which a cooling liquid may be circulated, the whole assembly being enclosed in a housing 36 with a top cap 37 and a bottom cap or base 34, through which current lead-in rods extend to the upper- and lower-most discs (not shown) with inlet and outlet connections 44 and 42 projecting through the base and top cap respectively for the electrolyte; hydrogen escapes through pipe 43 whilst hydrates, such as from calcium or magnesium salts present in sea water, drain through pipe 45, both pipes being flush with top cap and base respectively. The central tube 31 may be of perforated plastic and spaced from the edges of the apertures in the discs 30 to allow for the exit of hydrogen instead of through pipe 43.
Patent GB-805177-A (GB)
Title: Combined space heating and water heating system for a railway car
Inventor: GILLICK LAURANCE HENRY
IPC: F24D9/02
Filed: 1956-06-21
Abstract: 805,177. Automatic temperature control systems. VAPOR HEATING CORPORATION. June 21, 1956, No. 19269/56. Class 38 (4). [Also in Groups XIII and XXIX] In a combined space and water heating system (see Group XIII) for a railway car 10 a solenoid-actuated valve 82 is energized when the contacts 90 of a thermostat T are bridged by a mercury column and causes interruption of the steam supply to radiators 12 . . . 16. The valve 82 opens a by-pass 77 between a steam supply line 61 and a chamber containing a temperature responsive bellows and communicating with the steam return line from the radiators. Expansion of the bellows partly closes a valve in the steam supply line so that the resulting drop in pressure permits a relief valve supplying the radiators to close. Steam continues to flow through an exchanger 41 supplying hot water to wash-basins 45. The solenoid 82-is open-circuited and an electrical heater 85 is switched on by a switch S1 whenever a solenoid 88 is energized by opening of the contacts 90. The heater 85 provides a temperature rise, for example, of 2‹ F., to decrease the rate of rise in temperature in the car 10 before the contacts 90 close. A switch S enables the solenoid 82 to remain energized when car heating is not required.
Patent GB-781042-A (GB)
Title: Improvements in or relating to machines for manipulating cut tobacco
IPC: A24C5/34
Filed: 1951-08-15
Abstract: 781,042. Testing by nuclear radiation. MOLINS, D. W., POWELL, G. F. W., and MOLINS MACHINE CO., Ltd. Aug. 15, 1952 [Aug. 15, 1951], No. 19271/51. Class 40 (3). [Also in Groups VI, XXXV and XXXVI] In an automatically controlled cigarettemaking machine (see Group XXXV) the mass of a predetermined length of the moving filler on a tape is measured by a beta-ray mass measuring unit. In this unit the cigarette filler passes between guides 52, Fig. 2, and radiation from a beta-ray source 111, after passing through an aperture 135 in a screen 124 and through the cigarette filler, influences an ionization chamber 110 to produce an electrical signal. Ray source 111 is adjustable towards and away from the ionization chamber 110 by means of a knob (not shown) and a pointer indicates the set position. When checking the measuring unit one of the metal diaphragms 125, 126, 127 of thickness equivalent to different known masses of tobacco is brought between the ray source and the ionization chamber. If by releasing a clamp 151, ionization chamber 110 is swung away in the direction of the arrow, the operator is protected by a flap 147 which moves automatically to cover the opening of ray source 111. Electric heaters (not shown) prevent condensation within the measuring unit. The output of a second identical measuring unit with, between its ray source and ionization chamber, a metal diaphragm equivalent to the desired tobacco mass, is connected in opposition to the first to produce a signal dependent on the mass error. This second unit is also associated with the empty tape to provide compensation for tape wear. Air blowers remove dust from the measuring units and the tape is scraped clean. The mass error signal is a direct voltage which is converted to alternating by a vibrating condenser, the output of which is amplified to operate a thermionic valve voltmeter indicating the magnitude and sense of mass error and is utilized to control the speed of conveyance of the tobacco. Compensation is provided for variations in the moisture content of the tobacco (see Group XXXVI). Specifications 361,998, 440,182, 646,746, [all in Group VI], 684,503, 781,041, [Group XXXV], 781,043, 781,044, 781,047, 781,049 and 781,050, [both in Group XXXV], are referred to.
Patent GB-779472-A (GB)
Title: Improvements in and relating to spectacle frames
IPC: G02C1/06
Filed: 1955-07-04
Abstract: 779,472. Goggles. FISCHER, H. G. S. July 4, 1955 '[July 3, 1954], No. 19283/55. Class 97(1) A frame for protective spectacles is formed of a single piece of wire which is bent to encircle and resiliently retain two separate split rims having side shields and carrying the glasses or lenses and which forms the bridge and the two securing temples, which resiliently embrace the side of the head. Preferably, the split rims are of pliable plastic material or metal and, as shown in Fig. 2, are provided with internal grooves 2 to retain the glasses or lenses and external grooves 3 to accommodate the encircling wire 1, Fig. 1. The parts of the temples and bridge which come into contact with the head may be covered with india-rubber or plastic material and the wire may be of steel and sufficiently flexible to be bent to the size of the wearer. The rims are provided with shields 4 and 5.
Patent GB-301819-A (GB)
Title: Improvements relating to railway carriages, and more particularly sleeping carriages
IPC: B61D1/08
Filed: 1928-07-03
Abstract: 301,819. Compagnie Internationale des Wagon-Lits et des Grands Express Europeens. Dec. 6, 1927, [Convention date]. Luggage racks.-In a railway sleeping or other carriage divided into a number of double compartments A, B, the partitions between the latter compartments are each made of open S-shape, i.e. having an inclined central portion 5, Fig. 2, and end portions 5<1> at right-angles respectively to the exterior wall 2 and to the corridor wall 4. The partition extends only to the height at which the sides 1, 2 and roof 3, Fig. 4, join, and in the space between its upper edge and the roof is disposed a transverse inverted T-shape strengthening structure 9, 10, which may terminate either at the corridor wall 4 or extend to the outer wall 1 and the horizontal parts 9 of which serve as luggage racks for the two compartments.
Patent GB-596501-A (GB)
Title: A new or improved adjustable gauge for taking internal measurements
Filed: 1945-07-27
Abstract: 596,501. Linear dimension gauges. WILLETT, V. W. July 27, 1945, No. 19290. Addition to 569,225. [Class 106 (ii)] An adjustable gauge for internal dimensions as described in the parent Specification is modified in that the actuating member comprises a rod rotatable in an operating head to which it can transmit an axial movement, the head being non-rotatable in recesses in the internal surfaces of the resilient fingers. A rod 14 is rotatable in a wedge-shaped block 22 of rectangular cross-section with inclined faces 24 and has an enlargement 23 to compel the block 22 to move with it when retracted toward the body 10. The internal surfaces of the fingers 11 have recesses 25 with parallel sides and base surfaces inclined to correspond with the inclined faces 24 of the block 22, the ends of which engage the recesses 25 and prevent relative rotation. The blocks 22 may be retained by the resilience of the fingers 11 or may be located between the enlargement 23 and a rear shoulder on the rod 14.
Patent GB-401427-A (GB)
Title: Hinges for expansible suit cases, trunks and the like
IPC: A45C7/00
Filed: 1932-07-08
Abstract: 401,427. Hinges. CHENEY, C. W., Factory Road, Soho, Birmingham. July 8, 1932, No. 19318. [Class 65 (ii).] In a hinge for an expansible suit case or the like, comprising a hinging flap secured to the lid and permanently hinged to a slidable member mounted to move lengthwise over an attachment plate on the body of the case, with automatic ratchet engagement and release between the slidable member and the attachment plate, a ratchet pawl pivoted on the hinge pin engages teeth on the attachment plate immediately adjacent to the hinge pin, being lightly spring-pressed into the engaging position, and is connected to the hinging flap so that the outward swing of the flap will automatically disengage the pawl from the teeth and will carry the pawl with it to the full extent of the opening of the lid. In the form shown, the members are formed of sheet metal, the toothed attachment plate d being shaped to provide guides for flanges on the sliding member e to which the lid hinging plate g is connected by a pin f. The pawl h, pivoted on the pin f and engaged by a spring m thereon, has a projection h<3> which is engaged by a loop i on the end of the plate g when the lid is opened, thus carrying the pawl with the lid and automatically freeing it from the ratchet until the lid is closed again. Specification 269,320, [Class 65 (ii), Hinges &c.], is referred to.
Patent GB-295816-A (GB)
Title: Improvements in or relating to knitted fabrics
IPC: D04B9/46
Filed: 1927-07-21
Abstract: 295,816. Stibbe, G. July 21, 1927. Right to Patent relinquished. Stockings and socks.- A spliced area made in a stocking &c. by the method described in Specification 210,046, [Class 74 (ii), Knitting &c.], consists of a. number of tapered adjacent portions c, d, i, k, l rising from a common base g and having inclined sides, which may be straight, stepped &c.
Patent GB-384234-A (GB)
Title: Improvements in and relating to flat bed knitting machines
IPC: D04B11/00
Filed: 1932-07-09
Abstract: 384,234. Knitting-machines. LIEBERKNECHT GES., K., Oberlungwitz, Saxony, Germany. July 9, 1932, No. 19490. Convention date, July 9, 1931. [Class 74 (ii).] The needles carried by a movable section 3 of a flat machine needle bar 1 are urged into alignment with the needles on the main bar by a spring-actuated bolt 5 which is provided with an oblique face 7 to engage a similar face on the section 3. The bolt can be withdrawn to release the section by the engagement of a manually or mechanically displaceable cam bar 13 with a pin 11 and correct alignment of the needles is ensured by the provision of an adjustable stop screw 10. The bolt may be mounted on the main needle bar or on the movable section.
Patent GB-906865-A (GB)
Title: Improvements in or relating to combustion equipment
Inventor: MARCHANT FRANCIS CHARLES IVOR
IPC: F23R3/20
Filed: 1958-06-18
Abstract: 906,865. Generating combustion products under pressure. BRISTOL SIDDELEY ENGINES Ltd. Sept. 18, 1959 [June 18, 1958], No. 19535/58. Class 51 (1). Combustion equipment comprises a pair of mutually smoothly diverging annular walls, annular flow-dividing wall means being located between the annular walls to form annular diffusing passages which passages diverge by angles each less than the angle of divergence of the diffuser, fuel injection means being provided on the flow-dividing wall means to inject fuel into at least one of the diffusing passages. The invention is shown applied to reheat combustion equipment of a gas turbine jet engine, the turbine rotor of which is indicated at 10. The diffuser is defined between an inner frustoconical wall 14 and an outer wall 15, the inner wall being supported from the outer by a plurality of hollow faired radial vanes 16. An intermediate tubular flow dividing wall 17 is disposed between the walls 14, 15 so as to define therewith inner and outer divergent passages which open into the reheat combustion zone 12. Three concentric fuel injection rings 20, 21, 22 are provided, the ring 21 being disposed within the tubular member 17 and discharging therefrom through outlets 28 into the inner and outer diffusing passages. Three concentric flame stabilizing rings 24 are also provided, being supported by means of four radial struts 25 which are also shaped as baffles for flame stabilization. The intermediate flame stabilizing ring 24 is formed at the downstream end of the tubular member 17. A pilot combustion chamber 30 is disposed within the downstream end of the inner wall 14, fuel being supplied thereto through injector 32, and air or turbine exhaust gases through pipes 33 and swirl vanes 34; an igniter is disposed in the chamber 30. In a second embodiment, the radial vanes 16 extend downstream as far as the @tr its 25. The invention is also applicable to combustion equipment of a ram-jet engine having a centre body with a tapering tail portion.
Patent GB-434625-A (GB)
Title: Improvements in identification clips or devices for use on livestock
IPC: A01K35/00
Filed: 1934-07-03
Abstract: 434,625. Labelling animals &c. DOWELL, F. W., Acme Works, Finch Road, Handsworth, Birmingham. July 3, 1934, No. 19540. [Class 73] A labelling device comprises a disc having a notch to receive a part of the animal &c. and means to close the notch. The disc 1, having the notch 4, is dished and formed with a peripheral groove in which slides a pointed wire 6, a finger piece 8 being provided. The wire is retained by a second disc secured by the outer edge of the groove.
Patent GB-1270974-A (GB)
Title: Bituminous materials
IPC: E01C7/35
Filed: 1969-04-17
Abstract: 1,270,974. Bituminous composition. WIBAU WESTDEUTSCHE INDUSTRIEUND STRASSENBAUMASCHINEN G.m.b.H. 17 April, 1969 [19 April, 1968; 16 May, 1968], No. 19581/69. Heading C3N. A bituminous surfacing material comprises a mineral grain mixture and bitumen, as binding agent, in which the mineral grain mixture comprises more than 55% by weight of a gravel fraction having a grain size of 2-12 mm. together with a filler fraction having a grain size of less than 0À09 mm. and a graded sand having a grain size of 0À09-2 mm., the filler fraction forming up to 20% by weight of the mineral grain mixture and the graded sand forming up to 25% by weight of the mineral grain mixture, the amount of binding agent being such that the hollow spaces in the vibrated mineral mixture are completely filled or there is a slight excess, not more than 4% by volume, of binding agent. Examples specify as the mineral grain mixture (a) filler 18%, fine gravel 60%, and sand 22%; and (b) filler 15À5%, fine gravel 65%, and sand 19À5%. In general, the composition may comprise 90-94% by weight of mineral grain mixture and 10-6% by weight of bitumen. The sand used may be crushed. For a filler content of less than 20% by weight, the consistency and composition of the mortar (filler + sand + bitumen) are the same as for " mastic asphalt," the composition of which is referred to in the Specification. The gravel used suitably has a maximum grain size approximately corresponding to the dimensions of the voids in the gravel component of the material, normally 1À5-4 mm. The surfacing material may be laid using the conventional vibrating beam apparatus.
Patent GB-678810-A (GB)
Title: Improvements in or relating to high-frequency direction finding apparatus
IPC: G01S13/86
Filed: 1943-11-24
Abstract: 678,810. Gun sights. SPERRY CORPORATION. Nov. 24, 1943. [Nov. 21, 1942] No. 19667/43. Class 92 (ii). [Also in Groups XXXV, XXXVI, XXXVIII, XL (b) and XL (c)] In a radar system for tracking a moving target in azimuth and elevation (see Groups XXXVIII and XL (b) in which the system is approximately aligned with the target by manual means and the approximate orientation derived from the manual control is automatically corrected for any alignment error, the alignment error is indicated locally and is automatically compensated for prediction and ballistic lead angle so that when the operator manually adjusts the system for zero indicated alignment error, a gun 81 mounted parallel to the directive axis 18 of the system is correctly aimed at the target. Similar circuits are provided for azimuthal and elevational control and as shown the error voltage across the differential condensers 73, 74 of the azimuth error circuit is applied through the amplifier 46<SP>11</SP> to the servo motor 47 which rotates an input shaft of the differential gear 49, the output shaft 51 of which unbalances the condensers 73, 74 to reduce the error output to zero. The rotation of shaft 51 to effect this adjustment is proportional to the alignment error for small values of this quantity and is indicated by the pointer 70. The system is orientated by the manual control 53 which also operates another input shaft to the differential 49. When tracking a moving target, the servo 47 will be continuously operated by an input signal and during this operation a temporary failure of the received radio signals will cause the servo to slow down ; this is corrected by the, "memory generator" 66 which is driven by the servo and injects a voltage into the amplifier 46<SP>11</SP> which is proportional to the angular acceleration of the servo and this tends to maintain the servo rotating at a substantially constant speed as described more fully with respect to Fig. 6 (not shown). A voltage proportional to the angular velocity of the servo is also derived from the generator 66 and this is multiplied in the circuit 86 by a voltage proportional to the target range derived from a range circuit 55 of the type disclosed in Specification 631,587, [Group XL (c)]. The resultant product voltage is proportional to the prediction lead angle of the target and this is applied to operate the prediction motor 88 which unbalances the differential condenser 73, 74 so that a zero indicated alignment error is obtained when the gun has the correct prediction lead angle. Ballistic correction may be applied by deriving a voltage proportional to the required ballistic lead angle and inserting this voltage in series with the prediction lead angle voltage in the output of the multiplier 86.