baber/WOPTO huggingface dataset:
Patent GB-753337-A (GB)
Title: Improvements in or relating to perambulators or baby carriages
Inventor: BENNETT THOMAS JOHN
IPC: B62B7/14
Filed: 1953-11-05
Abstract: 753,337. Vehicle body mountings. HARRIS & CO., Ltd., W. J. Nov. 2, 1954 [Nov. 5, 1953], No. 30628/53. Class 108 (2). [Also in Group XXV] In a perambulator of the kind comprising a chassis and a body removably mounted thereon, the body and chassis are furnished at a plurality of spaced corresponding positions with cooperating interengageable means for interlocking the body and chassis detachably together and there is provided a common manuallyactuable operating member for simultaneously bringing into engagement the co-operating interengageable means of the body and chassis for securing the body and chassis together or alternatively for releasing the co-operating means simultaneously when it is desired to separate the body and chassis. As shown, in which a perambulator chassis comprises side frame members 3 braced by transverse stretcher bars 7 and 8 and a central stretcher bar 11, a bracket 12 is fixed to each of the rivets 10 securing the bars 7 and 8 and is formed with a slot 14 to receive a pin 16 on the body of the perambulator. Each bracket 12 is also formed with a slotted lug 17 in which is slidable a locking-bar 19. A pair of hook members 20 is secured on each bar 19 so that the pins 16 on that side of the body, when engaged in the slots 14 of the plates 12 are engaged by the members 20 when the bar 19 is moved endwise. Movement of the bars 19 on both sides of the vehicle is effected simultaneously by means of one of a pair of levers 22, the levers being pivoted on their respective bars 19 and frame members 3 and interconnected by a cross-bar 26. The body which may be of any suitable form comprises, in the arrangement shown, a rigid frame 27 which carries the pins 16, and a receptacle 28 of flexible material. The body is provided with a pair of carrying handles 31. The hook members 20 may be provided at one side only of the perambulator, the pins at the other side being received in holes or slots on the chassis or brackets thereon. Also, the pins may be located on the chassis for engagement with corresponding slotted brackets on the body. The levers 22 may be replaced by foot-operated levers or a combination of hand- and footoperated levers.
Patent GB-360613-A (GB)
Title: Recovering acid ammonium carbonate from ammonia liquors
IPC: C01C1/26
Filed: 1930-10-14
Abstract: Ammonium bicarbonate is obtained by distilling the ammoniacal liquor obtained in the carbonization or gasification of coal and causing the resulting gases after mixing with an excess of carbonic acid gas, to bubble through a concentrated solution in a cooled crystallizing tank from which the ammonium bicarbonate crystals can be continuously removed.  The gases may be passed through a cooling tower or towers before entering the crystallizing tank to remove excess of water. According to a modification carbon dioxide in the form of hot flue gases is passed through the ammonia still itself, the heat of the gases assisting distillation.  The crude ammonium bicarbonate obtained contains small quantities of volatile phenolic and basic substances which may kill insect pests when it is applied to the soil.  It may also be employed for neutralizing the acid in commercial ammonium sulphate.ALSO:Ammonium bicarbonate is obtained by distilling the ammonical liquor obtained in the carbonization or gasification of coal and causing the resulting gases after mixing with an excess of carbonic acid gas, to bubble through a concentrated solution in a cooled crystallizing tank from which the ammonium bicarbonate crystals can be continuously removed.  The gases may be passed through a cooling tower or towers before entering the crystallizing tank to remove excess of water.  According to a modification carbon dioxide in the form of hot flue gases is passed through the ammonia still itself, the heat of the gases assisting distillation.  The crude ammonium bicarbonate obtained contains small quantities of volatile phenolic and basic substances which may kill insect pests when it is applied to the soil.
Patent GB-648369-A (GB)
Title: Improvements in or relating to electric heating elements
IPC: H05B3/30
Filed: 1948-11-26
Abstract: 648,369. Electric heating resistances. GENERAL ELECTRIC CO., Ltd., LEWIS, D. L., and RYCROFT, J. L. Nov. 26, 1948, No. 30752. [Class 39 (iii)] An electric hotplate comprises a pair of sheet metal plates 1 and 2, Fig. 1, having depressions 3, 4 accommodating a metal casing 5 of incomplete circumference between them, the casing 5 containing t w o or more electric resistors 6 disposed side by side in insulating material 7 compacted about the resistors by pressing at least one face of the hotplate between the lines of resistors as at 8. The metal casing 5 is preferably of channel section, Fig. 3, with an inwardly directed base 8 and an internal coating of a refractory insulating material 11. The plates 1 and 2 may be welded together and the several resistors may be connected in series. L- shaped bead insulators 12 are provided for passing the resistor ends out of the casing. Specification 516,441 is referred to.
Patent GB-1107749-A (GB)
Title: Device for spraying roadways
IPC: B65G69/00
Filed: 1965-07-20
Abstract: 1,107,749. Spreading salt. A. KAHLBACHER. 20 July, 1965 [12 April, 1965], No. 30763/65. Addition to 1,047,406. Heading A1D. [Also in Divisions B1 and B2] The device for spraying moist salt disclosed in Specification 1,047,406 is modified by the provision of a pair of inclined nozzles 20 which delivers measured quantities of water or a dilute salt solution into the region of the adjustably inclined rotating discs 6 which convey the moist salt to the rotary distributer 11. The water &c. is supplied to the nozzles from a container 21 which is pressurized by compressed air supplied by the vehicle &c. on which the device is mounted, said water passing through an adjustable measuring device 24 the output of which is additionally controlled by the speed of the vehicle.
Patent GB-505443-A (GB)
Title: A new or improved adjustable jet and spray nozzle
IPC: B05B1/12
Filed: 1937-11-10
Abstract: 505,443. Nozzles. LUCE, A. DE, GARNER, S., GARNER, E., and VANCE, G. N. Nov. 10, 1937, No. 30807. [Class 69 (iii)] An adjustable jet and spray nozzle comprises a body portion a provided with a chamber b at one end and fitted on a stem h having a central bore h<2> and lateral outlets leading to the chamber b, the end h<5> of the stem forming a fit for a recess g<1> in an outlet nozzle f, and the arrangement being such that the body part can move longitudinally on the stem to vary the character of the spray. The part h<4> of the stein may be formed with spiral or helical grooves or threads to form a whirling spray.
Patent GB-1060598-A (GB)
Title: Ferromagnetic cores and processes for the preparation thereof
IPC: C04B35/26
Filed: 1964-08-04
Abstract: 1,060,598. Magnetic compositions. SIEMENS & HALSKE A.G. Aug. 4, 1964 [July 26, 1963; Aug. 2, 1963], No. 30880/64. Heading H1H. To reduce the loss factor tan #/Á for MnZn ferrites 0'25-1% by weight of SnO 2  and/or 0À25-1% by weight of TiO 2  may be incorporated in the crystal structure, these oxides, or equivalent oxide yielding compounds, being added to the initial oxide mix. 0À02-0À1% by weight of CaO may also be included, this being added to the ground reaction product after presintering at 800-900 C. After optional pressing and sintering at 1200-1220 C., slow cooling is performed preferably in an inert atmosphere. In one example, 55 mol per cent Fe 2 O 3 , 30 mol per cent MnO and 17 mol per cent ZnO are mixed with 1% SnO 2 , and the mixture calcined at 850 C. for 1 hour. The product is crushed and mixed with 0À1% by weight CaC0 3 , pressed into shape, sintered for 2 hours at 1200 C. in N 2  containing 7À4% O 2 , and slowly cooled at 100 C./hour. Other examples disclose slightly different main mixtures and varying amounts of CaO, SnO 2  and TiO 2 , properties for these examples being given.
Patent GB-379558-A (GB)
Title: Improved process of preparing cinematograph films bearing natural colour pictures and sound records
IPC: G03C7/24
Filed: 1931-11-09
Abstract: 379,558. Printing combined sound and picture films. DASSONVILLE, L. J., 35, Avenue Paul de Jaer, Brussels. Nov. 9, 1931, No. 31011. Convention date, Nov. 13, 1930. Addition to 377,411 [Group XX.] [Class 40 (ii).] The process of the parent Specification, in which a single silver-sensitized layer is printed under one component colour-record picture negative, developed, resensitized with a different metallic salt such as ferric chloride, printed under another component colour-record picture negative, and developed again to precipitate the second image as a grainless coloured salt such as Turnbull's blue, is modified in the production of a combined sound and picture film by printing the sound record on the film after the resensitizing step. During the first exposure, the part of the film which is to receive the sound record is masked, and the unexposed silver salt is removed therefrom when the first image is fixed. After the film has been resensitized, the sound record is printed thereon simultaneously with the second colour-record picture negative, the two being recorded on the same negative.
Patent GB-1224123-A (GB)
Title: Improvements in or relating to vibratory machines
Inventor: NORMAN EDWARD KERRIDGE
IPC: E01C19/28
Filed: 1970-02-18
Abstract: 1,224,123. Measuring soil compaction electrically. STOTHERT & PITT Ltd. Feb. 18, 1970 [Feb. 18, 1969], No. 31096/69. Addition to 1, 072, 160. Heading G1N. The degree of compaction of soil achieved by a vibrating roller is determined by measuring the deflections of the centre of gravity of the roller, which moves in an elliptical path, and it is stated that the length of the major axis is proportional to the degree of compaction. The impacting frequency is maintained constant at a value above the resonant frequency of the system and the unbalance mass is rotated at a constant speed, providing an impacting force of constant amplitude. The roller R, Fig. 2 is mounted on an unbalanced shaft S rotated at a constant speed by a motor E via gearing 101. The roller can also be driven by the motor E via gearing S2 to cause the machine to move forward at a desired speed. The impacting force produces elliptical vibration of the roller and the vibrational movement is measured by one or more transducers T, mounted on the roller supporting structure, comprising Piezo-electric accelerometers. One omnidirectional transducer may be used, mounted on the main shaft S, the maximum deflection being obtained electrically, or two transducers mounted to measure the perpendicular components of the movement. In the preferred embodiment two transducers are mounted 12¢ degrees on either side of the average angular position of the major axis of the ellipse, which is 65 degrees to the horizontal and the larger output, approximating to the major axis, is indicated on a meter M and lights a lamp L at a predetermined valve, or may be used to control the speed of travel of the machine.
Patent GB-391879-A (GB)
Title: An improved form of motion picture apparatus
IPC: G03B1/42
Filed: 1931-11-11
Abstract: 391,879. Kinematograph apparatus. ANDREWS, A. A., 21, Gordon Road, Southend-on- Sea. Nov. 11, 1931, No. 31234. [Class 97 (i).] In apparatus capable of use as a camera or projector, the film is intermittently fed by a claw member pivoted eccentrically on a rotatable disc, the claw member being provided with a tail end sliding in a sleeve on a pivoted block carrying a pivoted registering or film-retaining pin ; the apparatus may be provided with a sliding shutter rigidly carrying a pin engaging a sleeve pivoted eccentrically on a driving disc. As shown, discs 13, 17 are rotated by a handle 39 through gears 15, 14, 16, the disc 13 being provided with a pivoted sleeve 12 engaging a pin 11 projecting from a shutter 9 reciprocating in guides 10, and the disc 17 being provided with a pivoted double pronged claw 18 having a tail 19 slidably engaging a sleeve 20 formed on a block pivoted at 21 and pivotally carrying a film-retaining pin 23. The film 31 passes from a spool 32, over a post 33 to a gate aperture 8 in a plate 6, and thence between the plate 6 and a presser plate 28, which is pivoted on a pin 27 and is pressed by a spring 30, to a take-up spool 34 driven by a belt 37 from a pulley 38. A lens-aperture plate 40 having a hole 40a and a slot 40b for alternative use is slidable by means of a knob on a rod 41. A lamp holder &c. 44 may be carried, when the apparatus is used for projection, by apertured members 42, 43, a sliding shutter 45 being provided to cover the aperture in the member 42 when the apparatus is used as a camera.
Patent GB-1080588-A (GB)
Title: Improvements in or relating to methods and devices for the diversity reception of radio signals
IPC: H04B7/08
Filed: 1965-07-22
Abstract: 1,080,588. Diversity reception systems; automatic gain control. SUD-AVIATION SOCIETE NATIONALE DE CONSTRUCTIONS AERONAUTIQUES. July 22, 1965 [July 25, 1965], No. 31253/65. Headings H3Q and H4L. In a diversity reception system including conventional phase-correction prior to the addition of the signals from the respective channels, the gain of each channel is controlled by a voltage proportional to the logarithm of the ratio of the signal voltage to the square of the noise voltage, the controlled amplifier in each channel having a gain which is an exponential function of the gain control voltage. This ensures that the voltage gain of each channel is proportional to the effective signal voltage and inversely proportional to the square of the noise voltage in that channel to provide optimum signal/noise ratio when the channels are combined, as described in Proc. I.R.E., October 1955, page 1530. In one arrangement for generating the gain control voltage, Fig. 2, a channel I.F. amplifier 8 which is to be gain controlled, supplies via a filter 9 and quadratic detector 10, the signal energy s<SP>2</SP> plus noise energy n<SP>2</SP>, and a filter having the same pass-band as filter 9, but selecting noise only and quadratic detector 12 supplies a noise signal n<SP>2</SP>. The outputs of the detectors are supplied to a subtractor 14 whose output consists of signal energy s<SP>2</SP> only. The signal energy is supplied via logarithmic amplifier 15 and attenuator 16 which halves the amplitude to provide a signal ¢ log s<SP>2</SP> = log s which is supplied to a subtractor 18. The output of detector 12 is supplied via a logarithmic amplifier 17 to the subtractor 18 s whose output is log s - log n<SP>2</SP> or log -, the n<SP>2</SP> required control voltage. In a modification, Fig. 3 (not shown), the noise filter (11a) is arranged to have a narrower pass-band b 1  than the pass-band b 0  of the signal filter (9a) and an attenuator (13) of ratio b 0 /b 1  is inserted between detector (10a) and subtractor (14a). In Fig. 4, diversity channels I to N are combined at 19 and supplied via detector 20 to the utilization device, only the I.F. amplifiers 8a, 8b for channels I and II being shown. The outputs of the I.F. amplifiers are supplied to control voltage generators Aa, Ab, respectively, which are the devices shown in Figs. 2 or 3, the output of generator Aa being supplied to a subtractor 21a and that of generator Ab to a subtractor 21b. The output of detector 20 provides a gain control voltage in conventional manner which is also supplied to subtractors 21a, 21b, the resulting difference signal controlling the gain of amplifiers 8a, 8b, respectively. Alternatively the conventional a.g.c. may be applied to a different amplifier in the channel. A single control voltage generator, may be used, which is switched from one channel to another, Fig. 5 (not shown).
Patent GB-894607-A (GB)
Title: Automatic variable speed v-belt drive
IPC: F16H9/12
Filed: 1959-09-14
Abstract: 894,607. Expanding-wheel gear. SLEEPER, C. E. Sept. 13, 1960 [Sept. 14, 1959], No. 31320/59. Class 80 (2). Expanding-pulley gearing comprises a driving shaft, which may be the shaft of an electric motor, carrying a gear-wheel meshing a second gear-wheel on a layshaft carried by a twoarmed frame rotatable about the axis of the motor &c. shaft, an expanding pulley carried by the layshaft driving through a belt to a fixed pulley on an output shaft, a movable flange of the expanding pulley being biased by spring or centrifugal force towards a fixed flange thereof and the arrangement being such that when a substantial load is placed upon the output shaft, as when starting the motor &c., the frame rotates against belt tension to force the expanding-pulley flanges apart and thereby obtain a lower gear ratio.
Patent GB-168805-A (GB)
Title: Improvements in and connected with back pedalling brakes for cycles and the like
IPC: B62L5/00
Filed: 1920-11-05
Abstract: 168,805. Hill, G. M. Nov. 5,1920. Brake mechanism.-A backpedalling brake for cycles &c. comprises a pair of concentric members a, f connected by a pawl-and-ratchet clutch, the inner member being secured to the crank-axle c and the outer member connected by a link k to one end of a centrally pivoted lever j which at its opposite end is linked, as at l, to the brake yoke h.
Patent GB-1130496-A (GB)
Title: Marking device
Inventor: LUESCHER RENE
IPC: B41K3/00
Filed: 1967-07-07
Abstract: 1,130,496. Marking machine. CIBA Ltd. 7 July, 1967 [21 July, 1966], No. 31394/67. Heading B6C. Material 40 continuously passing through a marking machine is impressed with a series of regularly spaced dashes by a graphite or silver marking wheel 89 which is non-rotatable relative to the moving material and is swung about an axis 19 by a epicyclic driving gear which is actuated by a reversible electric motor 16. The latter is controlled by a circuit including a reversing switch 36, 37 which is operated by a spring-loaded switch 34 the opening and closing of which is directly dependent upon the swing- ing arm 24 which carries the marking wheel 29. The wheel 29 is readily removable from its shaft 26 upon which bears a spring-loaded brake means 32 carried by the arm 24. Through adjustment of the brake means the contact pressure between the marking wheel and the material 40 is similarly adjusted. In two modified embodiments the length of the dash lines is variable through the provision of eccentric members in the epicyclic gearing.
Patent GB-806858-A (GB)
Title: Improvements in or relating to stapling machines
Inventor: SIEMSSEN GEORG GUSTAV
IPC: B25C5/02
Filed: 1956-10-16
Abstract: 806,858. Stapling machines. ELASTIC AKTIENGESELLSCHAFT VORM. M. VOGEL A. G. Oct. 16, 1956, No. 31472/56. Class 89(3) A stapling machine comprises a base plate on which are pivoted on a common pin a magazine and a magazine housing which latter contains a staple expeller, and includes staple feeding means and means to lock the magazine and housing so that they pivot together which can be unlocked by lateral displacement of either the magazine or housing with regard to the pin against the action of a spring. A housing 1 and staple support 8 pivoted at pin 3 in lugs 4 of a base plate 5 carrying an anvil 6 are normally spaced from the base plate by a spring 12. To load, the housing is swung back through 180 degrees until it engages an abutment edge 21 on the base plate which acts as an axis for further pivotal movement until the rear ends of each slot 2 in the housing 1 bear against the pin 3, when the locking noses 9 of the support 8 disengage from the slots 11 in the front wall of the housing 1, the housing and support separating under pressure from the spring 12. Staples are inserted into the support which is then passed back into the housing. The staple feed mechanism comprises a toothed rail 30 guided on pins mounted in the housing and a slide 38 mounted in the staple support and urged against the last staple. At each stapling operation the rail 30 retreats under pressure from the spring 32, the split tongue 39 of the slide 38 engaging a more forward tooth 37 of the rail 30 so as to urge the staples forward by the width of one staple on decompression of the spring 32. A parallel and similar fixed rail (not shown) in which the tongue 39 also engages prevents accidental entrainment of the slide during rearward movement of the rail 30. In a modification illustrated in Fig. 4 (not shown) pins on the side of the staple support and bayonet slots in the side walls of the housing replace the noses 9 and slots 10.
Patent GB-723294-A (GB)
Title: Improvements in or relating to typewriter desks and the like
IPC: A47B21/02
Filed: 1952-12-12
Abstract: 723,294. Desks for office machines. EPSTEIN, G. Dec. 4, 1953 [Dec. 12, 1952] No. 31510/52. Class 52 (1). A platform 14 for a typewriter or other machine is raised by a lever 3 on opening a desk lid 1, slides or rollers 19 on the platform run on inclined tracks 13 on the sides of the desk well and are grooved or otherwise interlockingly engaged with the tracks to prevent lateral displacement. A roller 10 on the lever 3 enters a recess 18 in the cam surface 16 to hold the platform in raised position and a counterbalancing spring 11 may be provided.
Patent GB-262822-A (GB)
Title: Improvements in or relating to steam-jet operated air pumps
IPC: F04F5/44
Filed: 1926-12-13
Abstract: 262,822. B÷ckmann, F. Dec. 12, 1925, [Convention date]. Scrubbers and washers. -In a steam jet operated air pump for conveying bulk material, the dust contained in the air drawn in is separated in a combined wet and dry dust separator passing the steam nozzle. The separator, having an air inlet pipe a is divided into two compartments by a partition d provided centrally with a tapering tube e containing spray heads 1, 2, 3, receiving water from a pipe f. The air current is baffled by a plate c and, partly freed from dust, enters the tube e passing through the superposed sprays to the upper part of the filter casing, whence it is fed to the pump. Part of the condensed steam from the nozzle may be delivered through a valve h to the spray heads 1, 2, 3.
Patent GB-186857-A (GB)
Title: Bait protecting device for angling
IPC: A01K83/06
Filed: 1921-11-25
Abstract: 186,857. Illingworth, A. H. Nov. 25, 1921. Live-bait tackle; spinning-tackle.-A shield or protector for live bait is constructed from sheet celluloid, cellite or the like and is provided with spring fins W and a tunnel T through which the line passes outside the bait but inside the shield. The shield is made from one piece of sheet material moulded by the device shown in Fig. 5, comprising a tube P' with a slot P<3> and a plug P with a lug P<2> and a reduced neck P<4> into which the material is forced by a wire or string P<5> fastened to the plug and the free end of which is secured, after wrapping round the neck P', in the slot P'. The shield comprises side plates and fins W to give the desired spin, and may be secured by binding C at the notched parts of the shield. The line may be passed through a lead inserted in the mouth of the bait or through a hole or loop of wire at the front end of the shield.