baber/WOPTO huggingface dataset:
Patent GB-1405238-A (GB)
Title: Integrated circuit all-harmonic wave organ system including provision for flute tones and pedal notes
IPC: G10H1/18
Filed: 1973-03-09
Abstract: 1405238 Electronic musical instrument HAMMOND CORP 9 March 1973 [28 April 1972] 11650/73 Heading G5J In an electronic organ, tones are synthesized from harmonics extracted from staircase waves, themselves constructed by the addition of square waves at the fundamental frequency and in decreasing proportions at the next three higher octaves, waves above the eighth octave being omitted. Flute tones may be extracted by filters from the fundamental square waves, but if the filters are to handle a complete octave, the second harmonics must not be present in the inputs. This is true of a square wave but not of the staircase wave, but to save connection pins on a large-scale integrated circuit it is desirable to use the staircase wave for all purposes, the problem being overcome by gating out the first octave square wave making up the staircase when flute tones are required. Circuits for two adjacent semitones (e.g. C, C#) in all octaves are mounted on one chip: square wave source 100 provides eighth octave high frequency input for note C, with octave dividers 106, 110-130 down to first octave, and clearing bus 134 for initial phasing of the dividers. Keying blocks 140 combine four square waves from the dividers to form a staircase wave, under the overall proportional control of keying and envelope shaping units supplying voltage to terminals 162. The descending amplitudes of the higher components of the staircase are obtained by selection of impedance of the appropriate MOSFET. When flute tones are to be filtered from the output, gates 170 are blocked by control 172 to inhibit first octave component from the staircase wave. Four-component staircase outputs with fundamentals in octaves up to the eighth, with two adjacent semitones in common, are available at terminals 176, 178-188, components above eighth octave being omitted. Other keying blocks with similar gates on the same chip are assembled into units corresponding to 16, 8 and 4 foot pedal registers for the lowest three octaves 200, 210, 212. Pipe tones are then produced by formanting circuits outside the scope of the invention. Outputs from all key blocks serving registers of the same footage for the two adjacent semitones are commoned 204, 206, 208, while each octave has its own key and envelope control terminal 202 for each note.
Patent GB-996145-A (GB)
Title: Improvements in or relating to methods of manufacturing magnetic recording and playback heads
IPC: G11B5/187
Filed: 1962-03-27
Abstract: 996,145. Making magnetic heads. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. March 27, 1962 [March 30, 1961], No. 11654/62. Heading B3A. [Also in Division G5] To provide additional strength at the gapjoint of a narrow-gap head-core, in which the depth h is correspondingly small, a ferrite block 1, of suitable core material is grooved as at Figs. 1, 2, and blocks of a ferrite material 5, 6 of similar thermal expansion properties, but with a Curie point below normal room temperatures are attached by glass or solder of highmelting point. After machining to the lines 7, 8, thus defining the inner end of the eventual gap, and machining and polishing to the line 9, pairs of blocks are aligned with a ferrite key 11 and cemented to form a block, Fig. 3, from which a pair of heads may be cut and finished to the lines 12, 13. The portions of the blocks 5, 6 overhanging the blocks 1 provide reference surfaces from which the dimension h can be readily determined. An earlier method of machining both ends of the gap to finish it to an accurately defined length (Specification 928,910), is referred to. In a further embodiment, Fig. 4, the lower block 1 is the same but is associated with a plain block 14.
Patent GB-591609-A (GB)
Title: A combined motor driven compressor and air spray for hand use
IPC: B05B7/12
Filed: 1945-05-10
Abstract: 591,609. Spray-producers. NICHOLS, T. W. May 10, 1945, Nos. 11713 and 32592. [Class 69 (iii)] A sprayer comprises an electric motor 1, Fig. 1, mounted in line with an air compressor 3 and a spray-gun 12, a.liquid container 38 mounted above or below or indirectly attached to the gun and a handle 46 for the unit incorporating a switch 42 for the motor operated by a trigger 14 which also simultaneously or subsequently operates a needle valve 16 to control the the flow of liquid through a nozzle 25. Assisted cooling of the motor and compressor is obtained by arranging ports in the end casings of the motor whereby the jet from nozzle 25 discharging through an interchangeable auxiliary nozzle 27 induces a flow of air through the motor and over the compressor and spray gun which also provides the supply for the compressor. Oil for the lubrication of the compressor is supplied from a reservoir 31 through ports, and returned through further ports to the reservoir, mixed with compressed air, where it settles, the air passing on to the gun. Where heavy liquids are to be sprayed the container 38 is pressurised by closing a needle valve 39, Fig. 3, which admits air at atmospheric pressure and opening a needle valve 50 which admits air at nozzle. pressure from a port 33. The motor and compressor may be arranged vertically and the spray gun attached horizontally across the end of the compressor, or at an angle thereto, in which case the container 37 may serve as a handle.
Patent GB-1242561-A (GB)
Title: Improvements in or relating to polymerisation apparatus
Inventor: RICH JOHN THEODORE
IPC: F42B3/28
Filed: 1968-03-11
Abstract: 1,242,561. Separating polymer and gas; polymerisation apparatus. IMPERIAL CHEMICAL INDUSTRIES Ltd. 17 Feb., 1969 [11 March, 1968], No. 11768/68. Headings B1M and B1X. Apparatus for separating molten polymer from gas which polymer is flowing on the inside of an outlet 2 from continuous polymerization apparatus comprises a cone 4 with an inturned lip to form a channel 10 to prevent free fall of molten polymer into the polymer pool below. This prevents formation of stalactites of solidified polymer. The apparatus may be maintained above the m.p. of the polymer by jackets heated by vapour or electricity.
Patent GB-505522-A (GB)
Title: Improvements in or relating to electric exploders
IPC: F42D1/05
Filed: 1938-04-20
Abstract: 505,522. Driving dynamos. GLOSSL, K. SCHAFFLER-, (trading as SCHAFFLER &CO.). April 20, 1938, No. 11890. Convention date, Sept. 4, 1937. [Class 35] A spring-driven electric exploder is provided with releasing mechanism for the main spring drive together with a delay device for delaying the start of the main spring drive after operation of the releasing mechanism. The armature 26 of the generator is connected to the main spring 5 through gearing 9, 2 and a one-way ratchet clutch 2a, 3a which permits the armature to over-run when the main spring is unwound. The spring is wound by means of a shaft 1 and unwinding is prevented by a pawl 4. The releasing mechanism comprises a winding shaft 10, gear wheels 12, ) 13, a ratchet wheel 14 coupled to a cam disc 18 by a spring 28, and braking mechanism consisting of eccentric discs 19, 20 actuating plungers 23, 24 working in cylinders 21, 22 filled with liquid and interconnected by a narrow passage 32. The braking discs are directly connected to the cam disc. When the main spring 5 is fully wound, a cam 6a trips a pawl 7 to permit winding of spring 28 of the releasing mechanism. A cam 14a on the ratchet wheel 14 engages the pin 17b on a pawl 17 to release a stop 18a whereupon the disc 18 is rotated by the spring 28 and a cam 18c on the disc trips the pawl 4 which permits the main spring 5 to drive the generator. The igniting circuit includes a contact 25 operated by the releasing mechanism and arranged to close shortly before the automatic closure of the usual contacts 33. To ensure the return of the pawl 17 to the arresting position, there is provided thereon, in addition to the restoring spring 17a, a cam 17c which is acted upon by a cam 18b on the disc 18. The teeth on the ratchet wheel 14 are omitted over a short distance 14b to prevent the cam 14a from coming to rest beneath the pin 17h. The apparatus is housed in a strong outer casing to prevent damage by flying fragments.
Patent GB-785379-A (GB)
Title: Improvements relating to mass analyzing instruments
IPC: H01J49/30
Filed: 1955-04-25
Abstract: 785,379. Mass spectrometers. GENERAL ELECTRIC CO. April 25, 1955 [April 29, 1954], No. 11912/55. Addition to 780,951. Class 39(1). The ion resonance mass spectrometer of the parent Specification has the pole-pieces forming the vacuum-tight end closures 4, 5 of the housing. The pole-pieces are of soft iron and plated with nickel to prevent rust. The electrode leads are attached to a base which has a lip corresponding to the lip 17 of housing aperture 6. The electrode assembly 10 is inserted through the aperture and accurately aligned with the pole-pieces by inserting dowel rods 18 within the two lips. Ion collector 15 is inserted through aperture 16. The gas samples are introduced at 14. An aperture 12 is for continuously evacuating the housing.
Patent GB-149731-A (GB)
Title: Improvements in or relating to railway systems
IPC: B61K1/00
Filed: 1919-05-13
Abstract: 149,731. Samuelson, G. B., and Glaser, W. H. May 13, 1919. Slipping vehicles.-In an electric railway system a uniformly-moving train is arranged to overtake a coach starting in front of it and slip the rear coach on approaching a station. Fig. 1 shows a train composed of coaches 41, 44, with a coach 45 which has just been slipped, the train approaching a coach 40 which is starting from the station 11. On each coach, the front buffers 53, Fig. 4, are connected through rod 63<a> and a lost-motion device 62<a> and rod 61 to a switch device 56 which in turn is connected by a rod 57, lever 58 and roller 59 to a cam 60 on the rear buffers 54. The bogey pins are shown at 66<a> and 68. The rod 57 is connected by a lever 203 and rod 202 to a bellcrank lever 201 in engagement with a star-wheel 200, so that the star-wheel is depressed when the rear buffers are out. This star-wheel is engaged by strikers on the track and has six arms, on four of which are pins which operate the coupling- switch, so that this switch is actuated by the first two of every three strikers to place the coupling into attached or slip positions. Fig. 13 shows the connexions of the coach 40. The switch 123 is coupled to a reversing switch 130 which governs the electro-magnetic coupling 131, the switch 130 being operated by the star-wheel 200. When the coach is slipped, the connexions revert to the position shown in Fig. 13, except that the switches 123, 130, and the corresponding magnet poles are in reversed position, being re-set by a striker 144. Fig. 1, at the station. Specification 149,430 [Class 57, Governors &c.], is referred to.
Patent GB-654104-A (GB)
Title: Weighing scale pendulums
IPC: G01G1/00
Filed: 1947-05-05
Abstract: 654,104. Weighing-apparatus. WILLIAMS, L. S., and TOLEDO SCALE CO. May 5, 1947, No. 12011. [Class 143] A weighing- scale pendulum having, as claimed in Specification 625,830, a capacity weight adjustable along a straight track which is vertical when the power arm is a maxinum, has means for applying an initial moment by way of a sectorconcentric with pivotal axis. Such means, which may be a weigh or spring, is adjustable so that, by appropriately apportioning the initial pull between it and the pendulum, linearity is preserved during capacity adjustment. In Figs. 2 and 4, a pair of pendulums 89 are fulcrumed at 92 and have eccentric power sectors. 88 connected by ribbons 87 to the scale lever 71. Capacity weights 93 are adjustable along straight tracks 91 set at right-angles to the line joining the turning centree 92 and the power-sector centre 114. Adjustment is effected by turning a screw 118 in the bottom of a T-slot 117 in each pendulum casting and engaged with a nut 119 secured to the weight. The means for applying an initial moment comprises a loading frame 84 consisting of a pair of weights in the form of receptacles 98, 99 partially filled with lead and to which additional adjustment weights may be added. The receptacles are joined by a cross-bar 100 and each contacts a sector 90 on the pendulum concentric with its axis 92 and is connected to the sector by a ribbon 101. Vertical movement of the loading frame is transmitted to an indicator drum 77 by way of a rod 106, adjustably connected to a lug on the receptacle 98 and having rack teeth 85 bearing against a pinion on the drum spindle. A somewhat modified scale, Figs. 10, 13 (not shown) has a rotatable pointer indicator, and the adjustment weights are perforated discs which can be stacked on pins upstanding from shelves at either side of the loading frame. In Figs. 14 and 16, the arrangement of the pendulums 168, 169, with their capacity weights 183 adjustable along tracks 181, 182 and eccentric power sectors 186, is similar but the loading frame is replaced by a pair of springs 190 (one only shown), at either side of the pendulum. The ends of the springs are connected to ribbons 191, 192 overlying sectors 189 concentric with the pivotal centres of the pendulums and terminating in connections 193 with the pendulum castings. The connections 193 are adjustable by nuts 195 so that the tension in the springs can be varied as required to secure linearity. The rate of the springs can also be adjusted, their connections with the ribbons being by washers threaded into the end coils and one washer being rotatable. Indicators. The indicator in Figs. 14 and 16 comprises an optical system for projecting the image of a scale 172, carried by the pendulum 169, onto a screen 178 visible through a window 179. A lamp 174 and condenser on one side of the scale 172, together with a lens on the other side, project the image onto the screen by way of mirrors 175, 176 and 177. An adjustable weight 199 counterbalances the scale 172.
Patent GB-1096027-A (GB)
Title: Apparatus for use in applying treating substances to planted ground
IPC: A01M7/00
Filed: 1964-03-21
Abstract: 1,096,027. Crop-sprayers. J. WARNOCK. June 16, 1965 [March 21, 1964], No. 12055/64. Heading B2F. Apparatus suitable for spraying liquid weedkiller between rows of plants comprises a spray nozzle 26 mounted within a generally box-shaped spray shield 25 which is moved longitudinally between the rows of plants and engages the ground with its lower edges. A skid or runner such as 46 is fitted to each side wall of the shield and the end wall, which is formed by a pair of rearwardly converging plates, supports a rubber skirt 48 which engages the ground. The roof of the shield is formed by a pair of downwardly convergent plates, Fig. 2, (not shown) combined with a rubber sheet. The spray apparatus is resiliently mounted on the rear of a tractor &c. by a rectangular framework including springs 21. The liquid is fed to the nozzle from a pressurized tank 1 by a flexible pipe 19. A plurality of spray devices may be adjustably mounted on a transverse bar, Figs. 2, 3 and 6 (not shown), the devices being steered by an arm 22. Each nozzle is suspended from the roof of the respective shield by a toggle link so that adjustment of the spacing of the side walls causes a corresponding alteration in the height of the nozzle.
Patent GB-505804-A (GB)
Title: Improvements in mixing machines
IPC: B01F7/16
Filed: 1938-04-23
Abstract: 505,804. Mixing-apparatus. LANGSDORF, W. April 23, 1938, No. 12272. [Class 86] In apparatus in which an impeller circulates the material through a guide body the outer wall of which forms, with the wall of the vessel, a passage through which the material will rise and flow over the top of the guide back to the propeller, the guide body d, which is hollow for the circulation of heating fluid, is provided with a number of transverse openings k to provide an easy return for heavy material to the impeller b. The guide body is provided with inwardly projecting ridges l, and means may be provided for covering the openings, which may be slopod.
Patent GB-542881-A (GB)
Title: Improvements in and relating to brake operating mechanism
IPC: F16D65/50
Filed: 1940-07-29
Abstract: 542,881. Adjusting brake mechanism. BENDIXWESTINGHOUSE AUTOMOTIVE AIR BRAKE CO. July 29, 1940, No. 12282. Convention date, Aug. 5, 1939. [Class 103 (i)] In a slack adjusting device for brake mechanism in which a lever is adjustable angularly relatively to its shaft the body or boss 6 of the lever 7 is provided with an axial bore therethrough to receive a worm wheel 11 which is adapted to be splined at 30 to the shaft and which engages a worm 12 positioned in its axial direction by the walls 10 of a channel which also extends through the boss 6 parallel to the axis of the boss. The spindle 17 of the worm is a press fit in the worm 12 and this provides the driving connection between these parts and also positions the spindle in the longitudinal direction. A pair of end plates 26 close the bore and the channel in which the worm wheel and worm are disposed. Adjustment is effected by turning the spindle 17 by a tool applied to its end 18 and it is held in position by a spring-pressed ball 19 entering recesses in the spindle.
Patent GB-551221-A (GB)
Title: Improvements in and relating to tumbler switches
IPC: H01H23/12
Filed: 1941-09-23
Abstract: 551,221. Tumbler switches. TELEPHONE MANUFACTURING CO., Ltd., TAYLOR. G. E., and WHALE, T. H. Sept. 23, 1941, No. 12297. [Class 38 (v)] Dolly lever 3 pivoted at 4 and contact lever 10 pivoted at 12 are connected by a compression spring 14 bearing on anchorage pins 11, 13, the spring axis crossing the line 4, 12 in each extreme position. After passing dead centre, if the contact lever has remained, from any cause, in its initial position a projection 17 on the dolly lever positively releases the contact lever by pressure on one of two arms 16 extending from the lever 10. before reaching a limiting abutment 18 on the fixed bridge 1.
Patent GB-571254-A (GB)
Title: Improvements in or relating to diamond and like tool holders
IPC: B23B27/20
Filed: 1943-07-29
Abstract: 571,254. Diamond &c. tool holders. TECHNICAL DIAMONDS, Ltd., and CORONEL, M. July 29,1943, No. 12360. [Class 124] In a diamond or like tool in which means are provided for detachably locking a bit holder 2 in the tool holder proper 1, the latter is in the form of a barrel with a cylindrical bore 10, oppositely directed conical seatings 5, 6 and a screw-threaded hole 7 to receive correspondingly shaped portions of the bit holder, the screwthreaded shank 11 of the bit holder being engaged by a lock-nut 12 with a conical end face to engage the conical seating 6. The lock-nut 12 may have a tubular extension 13 of the same external diameter as the. barrel 1 and closed by a cap 14 to receive one or more bit holders.
Patent GB-451977-A (GB)
Title: Improvements in weighing scales
IPC: G01G3/18
Filed: 1935-04-26
Abstract: 451,977. Weighing-apparatus. TOLEDO SCALE MANUFACTURING CO., Toledo, Ohio, U.S.A. April 26, 1935, No. 12548. Convention date, Feb. 2. [Class 143] In a weighing-apparatus employing spring load-counterbalancing means 9, 10, zero variation and variation, under load, in the movements of the indicating pointer due to the effects of temperature changes on the springs are compensated for by transmitting the movements of the spring-loading means to the indicator by a flexible member, the flexure of which is varied according to the temperature. The indicator rack 34 is mounted upon a flexible member in the form of a blade spring 29 supported at its opposite ends on a light spring 31 and on a load-actuated equalizer bar 17. A thermosensitive element 42 bears upon the blade spring to regulate the extent of its flexure. A rise or fall of temperature moves the end of the thermosensitive element to the right or left respectively to vary the point of flexure of the blade spring and thus maintain the constancy of the zero position of the pointer, and of its movements under load. The zero position of the pointer may be adjusted by a screw 45 supporting the light spring 31. Dashpots 24, 25 are connected to the equalizer bar 17.
Patent GB-155746-A (GB)
Title: Improvements in or relating to appliances for feeding bees
IPC: A01K53/00
Filed: 1920-05-06
Abstract: 155,746. Master, H. M. Chester-. May 6, 1920. Bee-keepers' appliances.-A food-container for bees consists of a closed box A adapted to be placed in a hole formed in the quilt in the upper portion of a hive, and having preferably a removable transparent top B. The base C is placed a short distance above the lower edge of the side-walls, thus forming an anti-chamber A<1>, and has a slide controlled entrance E and an exit F of non-return type such as the " Porter" bee-escape. The food may be supported on wires D or on perforated grids.
Patent GB-413253-A (GB)
Title: Improvements in or relating to furnaces employing liquid fuel
IPC: F23C99/00
Filed: 1934-04-26
Abstract: 413,253. Liquid-fuel supply. SULZER FRERES SOC. ANON., Winterthur, Switzerland. April 26, 1934, No. 12601. Convention date, July 27, 1933. [Class 75 (i).] In a furnace for use with a water tube steam generator, particularly when high pressure combustion is used, for use with a hot water circulating system, or for metallurgical, chemical or other purposes, and provided with two or more burners 1, 2 which are supplied with liquid fuel from a common chamber 11, the fuel flows to the burners through separate supply pipes 9, 10 at least two of which lead from different levels in the chamber. Thus a burner extinguished owing to momentary impure supply will be relit by another burner. If more than two burners are used, they may be supplied with fuel in groups from different levels. The exhaust gases may drive a turbine.
Patent GB-255982-A (GB)
Title: Improvements in junction boxes and the like for electric wiring systems
IPC: H02G3/08
Filed: 1925-05-14
Abstract: 255,982. Fuller's United Electric Works, Ltd., and Welch, A. P. May 14, 1925. Junction boxes.-The ring c employed in conjunction with screws or studs e to clamp cables f to the base a of a junction box is made of channel section. The studs &c. e are secured to a raised rim a' of the base, and pass through keyholeshaped openings in the ring c. A cover g is provided, having slots for the cables f and lips g<2> on the sides of the slot to be bent in under the cable. For a ceiling rose or switch having a wooden base, the studs e are mounted on a ring that fits into the recess in the base.
Patent GB-376866-A (GB)
Title: Improvements in shelving with movable boards and automatic engagement
IPC: A47B57/56
Filed: 1931-04-29
Abstract: 376,866. Brackets. LIPMAN, R., 64, Avenue des Vosges, Strasbourg, Bas-Rhin, France. April 29, 1931, No. 12644. Convention date, May 1, 1930. [Class 52 (v).] In shelving of the kind wherein the supporting brackets are adjustable in vertical standards each bracket 11 is formed with an edge 11a bent through 90‹ to form a heel which engages in a rectangular conduit 5 of the standard, and also with a finger 14 to engage with one of a series of notches 10 or perforations in the front wall of the conduit, so that the horizontal position of the shelf is determined by the abutment of the upper and lower extremities of the heel on the front and opposite walls respectively of the conduit, and the weight of the bracket is borne by the finger 14. In assembling, the bent edge 11a is inserted in the slit 9 in the standard and the bracket pivoted until the finger 14 may be inserted in one of the notches 10. The finger 14 may be somewhat distorted so that it is necessary slightly to lift the bracket before disengaging it. The lower edge of the bracket is bent to form a trough 15 for reception of the bent end of the shelf 16 (Fig. 2). The shelf has also bent edges 16b whereby lateral movement is prevented.