baber/WOPTO huggingface dataset:
Patent GB-328097-A (GB)
Title: Improved manufacture of rinsing, grease-removing and cleaning compositions
IPC: C11D11/00
Filed: 1929-03-23
Abstract: 328,097. Henkel et Cie, Ges. Feb. 27, 1929, [Convention date]. Cleansing-compositions of the kind referred to in Specification 332,530 are obtained in powder form readily soluble in water by atomizing aqueous solutions of alkaline alkali phosphates and water-soluble silicates while powdered calcined soda is added at the atomizing zone. Caustic alkali may also be present. For example, 130 kg. of 50 per cent caustic soda, 153 kg. of 38-40‹ BÚ water-glass, and 622 kg. of disodiumphosphate (Na2 HPO4 12H2 O) are atomized at 100-105‹ C. while 136 kg. of calcined soda are blown or sucked in.
Patent GB-287914-A (GB)
Title: Improvements in or relating to electrically driven floor brushes
IPC: A47L11/08
Filed: 1928-03-29
Abstract: 287,914. Giambertoni, A. March 29, 1927, [Convention date]. Floors. cleaning.-Two cylindrical brushes 6, 7, Fig. 1, are rotatably mounted upon the shaft 9 of an electric motor which drives the brushes through the medium of pinions 11 and internal gears 12. The Specification as open to inspection under Sect. 91 (3) (a) comprises also an electric motor 1, Fig. 2 (Cancelled), located within and adapted to drive, through toothed or friction gearing, a roller 5, which may carry bristles 5<1> felt, or linen for treatment of the floor. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1111409-A (GB)
Title: Improvements in or relating to gunn effect semi-conductor arrangements
IPC: H03B9/12
Filed: 1967-02-28
Abstract: 1,111,409. Gunn effect devices. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 28 Feb., 1967 [1 March, 1966], No. 9570/67. Heading H1K. In a Gunn effect device at least one of the cross-sectional dimensions of the semi-conductor body increases in the direction of movement of the charge carriers. The body may have a longitudinal section in the form of a trapezium with the electrodes on the parallel sides, or it may be shaped as a sector of a circle or as a hemisphere, the cathode being at the centre and the anode around the curved surface so that the distance between the electrodes is the same in any direction. The electrodes may be deposited electrolytically or held in contact with the body by pressure.
Patent GB-164563-A (GB)
Title: An improved device for washing clothes
IPC: D06F15/00
Filed: 1920-04-06
Abstract: 164,563. Anderson, G., and Leyland & Birmingham Rubber Co., Ltd. April 6, 1920. Washing-dollies.- Consists of a hollow collapsible imperforate body a formed of india-rubber or other flexible material, a handle d attached to this body and a perforated diaphragm bottom b also of flexible material formed separately and secured in position by cement or moulded as an integral portion of the body or formed with a flange sprung into a recess thereon. One or more inlet lip valves e are provided on the body a for the admission of water when the device is in use.
Patent GB-696996-A (GB)
Title: Process for the production of ammonium sulphamate
IPC: C01B21/093
Filed: 1952-04-16
Abstract: Ammonia and sulphur dioxide are reacted at a temperature above 100 DEG C, and under superatmospheric pressure, the ammonia being present in excess of the stoichiometric quantity required for the equation 4NH3 + 3SO2 --> S + 2NH2 SO3NH4.  A temperature range of 200 DEG -300 DEG C; anhydrous liquid reactants; and pressure greater than 200 lbs./sq. in. are preferred conditions.  The ammonium sulphamate is recovered from the reaction product by leaching with an aqueous solution of ammonium sulphamate, followed by filtration and cooling to precipitate crystalline ammonium sulphamate.
Patent GB-1504844-A (GB)
Title: Nail
IPC: F16B15/06
Filed: 1976-03-10
Abstract: 1504844 Nails EATON CORP 10 March 1976 [10 March 1975] 09616/76 Heading F2H A sheet metal nail 10 with a head 14 extending in a plane at right angles to the longitudinal axis of the shank 12, the shank having a V- shaped leading edge 26 and at least one tang 16 extending outwardly from a face of the shank, has a protrusion 30 provided on said face of the shank between the tang 16 and the leading edge 26, axially aligned with the tang. The nail is used to secure insulation material B to a sheet metal deck A, the leading edge 26 piercing the deck A. The protrusion 30 makes a local widening of the aperture pierced in the deck A so that the tang, or the leading tang, is not damaged as it passes through the deck. As shown, the shank 12 is arcuate in transverse cross-section and has two rows of tangs 16 projecting from its convex face. A protrusion 30 leads each row of tangs. A hole 28 in the shank near the tip allows, e.g. wires or a false ceiling to be suspended from the deck. Extensions 24 at the sides of the shank support the head 14 as the nail is driven in.
Patent GB-590299-A (GB)
Title: Improved apparatus for impressing stereotype matrices
IPC: B41D1/00
Filed: 1945-04-17
Abstract: 590,299. Stereotype-matrix machines. WOOD NEWSPAPER MACHINERY CORPORATION. April 17, 1945, No. 9624. Convention date, Nov 9, 1944. [Class 100 (ii)] In a bed-and-roller machine for impressing stereotype matrices, the roller 19 is freely mounted so as to rotate frictionally by contact with the blanket 29 placed over the flong 28, and the forme 26 is rigidly but releasably secured to the bed 5. The roller 19 is mounted on antifriction bearings 21 which are adjustable vertically by screws 24. The bed 5 has tracks 7 running on rollers 6 and is in frictional engagement with a cylinder 8 situated vertically below the roller 19 and driven by reduction gearing 12, 13 from a reversible electric motor 11. Gears 14, 15 on the shaft '9 of the cylinder 8 engage with racks 16, 17 on the bed 5 to drive the latter.. The switch controlling the direction of rotation of the motor may be operated manually or automatically. The blanket 29 may be of rubber, felt or cork or a combination of these materials. Printing-surfaces.-The forme 26 is mounted in a chase 27 secured to the bed 5 bv electromagnets 30 at each side of the bed. The electromagnets 30 are adjustable laterally on supporting plates 33 according to the width of the chase. Switch contacts 40 in the circuits of the magnets may be operated manually or, as shown, automatically by an adjustable cam 49 on the bed through a roller 48 and spring- pressed rod 44 so as to be closed only while the forme is passing beneath the roller 19.
Patent GB-493085-A (GB)
Title: Improvements in chain shifting mechanism of a variable speed gear for a cycle or the like
IPC: B62M9/124
Filed: 1937-04-06
Abstract: 493,085. Change-speed driving-mechanism for cycles &c. CAMILLIS, L. April 6, 1937, No. 9686. [Class 136 (ii)] [Also in Group XXIV] In change-speed mechanism for cycles, &c. of the type in which the chain is selectively engaged with sprockets of different sizes on the driving wheel by means of a single combined tensioning and chain-shifting sprocket on the free end of an arm 1 pivoted on the wheel spindle, the inner end of the arm 1 is pivoted on the end of the wheel spindle 5, outside the cycle frame, by means of an internally screw-threaded bush 3 (e.g. with a nutend 6), which allows the arm 1 to swing freely upon it and at the same time secures the arm on the end of the spindle 5. The lever 1 has a rigid extension 8 providing an abutment for the casing of a Bowden wire 9. An arm 10 secured to the bush 3 forms an anchorage for the upper end of a tension spring 11 acting on the lever 1 to tension the chain. The lower end of the lever 1 is provided with a screwthreaded hole to receive a transverse sleeve 14, which is clamped by a nut 16. A combined jockey and tension sprocket 18 is revolubly mounted on a hollow axle 17, which slides in the sleeve 14 under the control of the cable 9 and a compression spring 20.
Patent GB-929645-A (GB)
Title: Improvements in or relating to the purification of acetylene
IPC: C07C7/171
Filed: 1962-03-13
Abstract: Acetylene is purified by passing through one or more fritted materials soaked in sulphuric acid.  The frit may be of glass, polyvinyl chloride or a corrosion-resistant nickel-based alloy having pores in the range 40-200 microns in diameter.  The sulphuric acid of more than 97% concentration is maintained in a layer above each or the frit in such a thickness that frothing does not occur and is preferably continuously replaced.  The acetylene is preferably first dried with calcium chloride and given a preliminary conventional washing with sulphuric acid which may be that already used in the process of the invention, then given one or more treatments in accordance with the invention and finally washed with aqueous caustic soda.  The washing with caustic alkali may also be effected by passing the gas through a fritted material covered with the liquid.
Patent GB-835179-A (GB)
Title: Improvements in and relating to fastening means for securing instrument boxes in operative position
IPC: E05B65/46
Filed: 1958-03-26
Abstract: 835,179. Stud and socket fastenings. BLACKBURN GROUP Ltd., [formerly BLACKBURN & GENERAL AIRCRAFT Ltd.], CHAMBERS, H. G., and BRYANT, A. G. March 26, 1958, No. 9726/58. Class 44 Fastening means for securing an instrument box in a cavity by engaging a retaining stud 1 on the box comprises a pair of jaws 4, 5 spring urged towards open position, an axially movable member 8 having a tapered end 7 effective on displacement in one direction to move the jaws into closed position to grip the stud, a tongue member 13 associated with the axially movable member and engageable behind the box partially to extract the same from the cavity on movement of the axially movable member in the opposite direction, and a fixed part 10 co-operating with the thread 11 on the axially movable member to displace it axially on rotation thereof. The tongue member 13 is attached to a collar 12 which is freely slidable on the member 8 and it is urged into engagement with the rear of the tapered end 7 by a spring 14 positioned between the collar and a bracket 9. When the box is in its fastened position with a recess 3 in the stud engaged by the jaws 4, 5 and with the end 7 between the jaws to hold them into engagement with the stud, the stud is first disengaged from the jaws by a rotation of the member 8 which moves the member 8 axially and this movement of the rod causes the tapered end to engage the collar 12 and move it to partially push the box from the cavity; at the same time the spring 14 is compressed to move the tongue member to its normal position when the box is re-engaged in the cavity. To prepare the cavity to receive the box, the member 8 is rotated until a spring 19 engages a groove 18 in part 17 on the member 8; in this position the jaws 4, 5 are open and the tongue member 13 does not obstruct the entry of the box.
Patent GB-125818-A (GB)
Title: Improvements in Photographic Cameras.
Inventor: TWEMLOW SAMUEL POOLE
IPC: G03B3/02
Filed: 1918-06-13
Abstract: 125,818. Twemlow, S. P. June 13, 1918. Cameras, collapsible.-The lens carrying front i is supported in the forward position by the hinged flaps a, b and held in position by the stops d, d' and spring catches e, e<1>. One of the flaps may have a fixed notch in lieu of a stop and spring catch. The flaps a have curved arms c for limiting their opening.
Patent GB-495638-A (GB)
Title: Improvements in the manufacture and production of iron-tanned leather
IPC: C14C3/04
Filed: 1937-04-06
Abstract: 495,638. Iron tanning. JOHNSON, G. W. (I. G. Farbenindustrie Akt.-Ges.) April 6, 1937, No. 9742. [Class 76] Tanning is effected by the use of iron compounds forming two shell complexes and formed in solution by the reaction of iron chloride with alkali salts of weak organic acids, e.g. formic, acetic, hydroxy acids such as lactic, and amino acids, together with acids capable of being enclosed in the second shell of the complex namely aliphatic hydroxy acids and inorganic or organic polybasic acids. Examples of suitable iron compounds are the nitrogenous complex salts described in Specification 470,530 and hexa-acetato-dihydroxytriferric and hexa-formato-dihydroxy-triferric salts. The acids (or their salts) capable of being enclosed in the second shell of the complex may be added to the iron complex salts in the tanning liquor or the two shell complex salts may be formed by mutual reaction in the liquor. Examples describe processes of tanning in which hexa-acetato-dihydroxy-bicarbamido-triferric chloride, the corresponding tricarbamido compound and hexa-formatodihydroxy-triferric chloride are employed. Acids (or their salts) used in conjunction with these compounds are sulphuric, oxalic, phosphoric, phthalic, glycollic. According to one example the liquor containing the complex iron compound is prepared by dissolving together iron chloride, sodium acetate, urea, sodium sulphate and sulphuric acid. Information as to the nature and formation of complex iron compounds of the kind used according to the invention is given in Zeitschrift fur anorganische und allgemeine Chemie, Vol. 230, pages 176-180. Specification 287,221, [Class 76], also is referred to.
Patent GB-481830-A (GB)
Title: Improved method and apparatus for sound recording
IPC: G11B25/00
Filed: 1937-04-06
Abstract: 481,830. Reproducing music. RADIO CORPORATION OF AMERICA. April 6, 1937, No. 9769. Convention date, April 30, 1936. [Class 40 (iv)] In a recording system in which sound currents representing voice and musical accompaniment are transmitted along separate channels and are subsequently combined, currents in the voice channel operate to reduce in proportion the level of the conflicting frequencies, e.g. the high frequencies, in the music channel. In Fig. 2, the music currents are fed to an amplifier 23 and through an inductance 25 and capacity 26 to a further amplifier 27. Between the inductance 25 and capacity 26 the channel is shunted by a valve 30 the filament of which receives current from the voice channel 10 through a transformer 35. By virtue of the characteristic of the inductance 25 the shunting effect of the valve 30 is substantially greater for the high frequencies than for the low, and consequently the high frequencies are reduced in accordance with the level of the voice currents. In Fig. 3, the music currents are fed by a divided transformer to a pair of valves 44, 45, preferably variable-gain pentodes, the input circuits including resistances 51, 51<1> and being shunted respectively by a capacity 50 and an inductance 52, which are such that in the normal state the characteristic of the amplifier is substantially flat. The control grids however are governed by the potential across, resistances 55, 56 in the output of a rectifier 43 in the voice channel so as to increase the gain of the valve 44 which takes the low frequencies and to reduce that of the valve 45 which takes the high frequencies. In Fig. 4, the music channel is subdivided by means of high and low-pass filters, and the high frequencies pass through an amplifier 67 of which the control grid is governed by the potential across a resistance 79 and condenser 80 in the output of a rectifier 78 in the voice channel. A similar arrangement may be used for reducing the level of any desired band of the music range.
Patent GB-155164-A (GB)
Title: Improvements in or relating to tunnel kilns or furnaces
IPC: F27B9/26
Filed: 1920-04-07
Abstract: 155,164. Metcalfe, R. C. April 7, 1920. Tunnel kilns.-A single reciprocating goods carrier transports the goods between the high-temperature zone and a combined ingress and egress port which is displaced longitudinally of the kiln from the high temperature zone. The kiln shown has two ingress and egress ports F, G, goods placed through either on to the reciprocating carrier C being carried by it to the centre of the kiln and then back to the same port for removal. The ends of the carrier enter extensions of the kiln chamber A<1>, A<2> which they practically fill, in order to prevent passage of the heated kiln atmosphere to the underside of the carrier. In a modification, the extensions are of the same height as the kiln chamber and the ingress and egress ports are formed in them; the carrier C is then provided with an upstanding partition at each end and at the centre, which partitions close the ends of the kiln chamber when the carrier is in its extreme positions. When the kiln has a single port, only two such partitions are needed. The combustion chambers D, DA are supplied at opposite ends with air and gas through inlets D<1>, D<2>, so that the gases pass through them in opposite directions in order to secure uniform heating. The combustion chamber shown in Fig. 6 may be employed, in which a partition D<5> causes the gases to pass round it back to the inlet end.
Patent GB-325418-A (GB)
Title: Improved drawer release mechanism for coin-freed vending machines
IPC: G07F5/04
Filed: 1929-03-27
Abstract: 325,418. Harper, P. S. March 27, 1929. Coin action with stationary coin forming abutment and multiple.-In a drawer releasing mechanism of a coin-freed vending machine the coin pocket which is of a capacity to take two or more coins is formed between a plate 5 attached to the framework and a verticaly adjustable slotted plate 6 secured to a depending lug 3 on the drawer by screws 11, 12. The drawer is normally locked by a spring-controlled pivoted catch 4 engaging a step 2 on the framework, but if the requisite number of coins has been inserted in the slot the catch 4 rides over the projecting edge of the top coin and is thereby lifted above the step 2. The plate 5 has inturned ends 7 which retain the coins in position until a ledge 9 at the bottom of the plate 6 is moved sufficiently to allow them to fall.
Patent GB-345500-A (GB)
Title: An improved protective device for the coin-slot of coin-freed machines
IPC: G07F1/02
Filed: 1930-03-27
Abstract: 345,500. Coin-freed apparatus. COLEMAN, W. G., 4, Dowling Street, Dunedin, New Zealand. March 27, 1930, No. 9830. Convention date, April 17, 1929. [Class 27.] Testing coins.-In order to prevent the insertion in coin-freed machines of broken glass, wire, and articles other than coins of the required diameter and thickness, a protective device is mounted over the coin-slot, the device comprising a baseplate 1, Fig. 4, having a coin slot 2 and a forwardly projecting formation 3, which is provided with a flanged coin-entrance 4 and a pair of levers 9, 10, pivoted at 11, 12. The lower ends of the levers pass through oblique slots 15, 16, Fig. 2, in a,plate 6, which is held against the baseplate 1 by the bent-over ends 18, 19 of the levers. When a coin is inserted, it engages projections 21, 22 to move the levers apart against the action of a spring 20, the movement of the levers in the oblique slots causing the plate 6 to slide transversely across the slot 2 and bring a slot 7 therein into register with the slot 2.
Patent GB-561049-A (GB)
Title: Improvements in or relating to the construction of electrical plug and socket connections
IPC: H01R13/20
Filed: 1942-07-15
Abstract: 561,049. Two-part couplings; lamp caps and holders. VICKERS -ARMSTRONGS, Ltd., and CALDWELL, R. July 15, 1942, No. 9840. [Class 38 (i)] [Also in Group XXXVII] A socket contact for a coupling or lampholder comprises a fixed plate with which cooperates a floating plate pressed by a spring to grip a blade inserted between the plates. In one form, both plates 11, Fig. 1, are of conducting material, the fixed plates forming part of a structure 2 attached to a cable 3, and the floating plates being connected thereto by flexible strips 6 and supported on springs 4. Recesses 10 receive an enlarged end 9 on the blade contact 8 and lock it in place. In a modification, the floating plate 15, Fig. 2, is of insulating material and acts under pressure of springs 16 to hold the blade 8, Fig. 3, in contact with the fixed plate 14. The enlarged end 9 of the blade is of insulating material and the entry aperture 17, 18 is so arranged that only insulating parts come into contact until the blade is fully inserted. The enlargement 9 then drops into recesses 10 and the bent' part 12 of the blade rests on the slope 17 allowing the blade 8 to lie in close contact with the plate 14. In a wall socket, the earthing pin only may be furnished with the locking enlargement. In a lamp holder 33, Fig. 8, the socket is rectangular and the lamp cap is of corresponding shape with contact surfaces 39 on two opposite faces. The floating contact plates 35 in the holder are acted upon by springs 38 and engage under the enlargements 39<1> on the lamp cap.
Patent GB-123912-A (GB)
Title: Improvements in Apparatus for the Manufacture of Superphosphates or like Artificial Fertilisers.
IPC: C05B1/10
Filed: 1918-06-15
Abstract: 123,912. Goulding, W. & H. M., and Allibon, G. H. June 15, 1918. Calcium superphosphate.-A den for the manufacture of superphosphate is provided with a pair of sliding doors which preserve a clear space above a discharge opening through which the superphosphate is swept by rotary scrapers mounted on a vertical shaft and arranged to descend as the superphosphate is cut away. The longitudinallysliding doors d, c are arranged on either side of the discharge opening u which extends across the bottom of the den above a conveyer v. The scrapers s are mounted on a squared hollow shaft j sliding over a shaft f and through a beval-wheel l by which it is rotated. At the upper end of the shaft J is a nut g<1> engaging with a fixed screwed shaft g. When the scrapers s have reached the bottom of the den their motion is reversed automatically by gearing operated by a shaft w which engages with a worm k attached to the bevel-wheel l and operates the clutch-mechanism shown.
Patent GB-399824-A (GB)
Title: Improvements in dolls, toy animals and the like
IPC: A63H3/04
Filed: 1932-04-06
Abstract: 399,824. Improvements in dolls and toy animals. FITCH, W., 52, Davenant Road, Oxford. April 6, 1932, No. 9889. [Class 132 (iii).] The limbs, body parts, &c. of dolls, toy animals, and other toys are constructed from members made by wrapping wool round a former, applying a stiffening member lengthwise of the former, cutting the wool at the edges of the former and removing the latter. One or more strands of wool 1 are wound around a flat rectangular cardboard former 2 and a stiffening strip 3 of ribbon wire is applied to the wound wool and former about centrally by stitching. The wool adjacent the edges of the former is cut at 6 to provide a number of short strands of wool and the former is then torn away along the perforations made by the stitching. In the modification shown in Fig. 3 a stout reinforcing wire 4 is layed lengthwise of the ribbon wire 3, the two edges of which are overlapped and secured in place by stitching 5. The stitching 5 instead of being additional to that first sewn to the former may be alternative thereto. The toy animal shown in Fig. 4 is made from three members formed as above, the ribbon wires being stitched to each other and bent as shown. Stitches to indicate claws, mouth, and nose are added, and eyes and ears, the ears consisting of pieces of knitted fabric, are secured to that part of the ribbon wire forming the head. In some cases two members may be secured together or two wool-wound formers may be secured together by ribbon wire applied to one or both outer faces.