baber/WOPTO huggingface dataset:
Patent GB-707112-A (GB)
Title: Improvements in or relating to carpet sweepers
Inventor: PULLEN FRED WALTER
IPC: A47L11/33
Filed: 1951-12-28
Abstract: 707,112. Carpet sweepers. BISSELL CARPET SWEEPER CO. Dec. 28, 1951, No. 30292/51. Class 138 (1) A carpet sweeper comprises a casing '1 and floorwheels 5, a brush 12 provided with a pulley 13 driven by the wheels 5, a biasing spring (not shown) for the wheels mounted for movement with the .casing, a support member, e.g. a bracket 8, carried by the casing and disposed at the outer sides of the wheels and pulley, a slideway 17 on the member 8, a brush journal member mounted on the slideway for vertical movement, a horizontally-disposed spring 18 connected substantially centrally of the spring to the brush journal member and means on the casing for supporting the ends of the spring at least one end of the spring being slidably engaged with said means, the spring being independent of the biasing spring for the wheels and of such a length that the, biasing stress thereof on the brush is' approximately constant throughout the range of 'vertical movement of the brush. The brush journal member, Fig. 5, comprises a journal member 14 secured to a slide 15 having flange portions 16 engaging with the slideway 17 in the support or bracket 8 which also carries the biasing spring for the floorwheels 5. The rod spring 18 is slidably supported in the slide 15 by passing through openings 19 therein; and the outer ends of the spring are slidably supported in loops 20, Fig. 2, struck from the casing end bar 4 which also constitutes a thrust member for the slideway. In modifications the loops may be struck from brackets supported either on the casing side walls 2 where they project beyond the casing end wall 3 or on the end wall itself. The parts are duplicated at the other end of the casing.
Patent GB-786640-A (GB)
Title: Improvements in or relating to a vacuum vessel such as a cathode ray tube or a largerectifying tube having a metal wall which is made at least partly from thin sheet metal
IPC: H01J29/87
Filed: 1954-10-21
Abstract: 786,640. Cathode ray tubes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Oct. 21, 1954 [Oct. 23, 1953], No. 30400/54. Class 39(1). The metal cone of a cathode ray tube or metal envelope part of other vacuum vessels such as large rectifying tubes is reinforced by means of a framework forming a cage and extending over the entire length of the metal envelope part, the reinforcing members being secured to, but not formed from, the cone wall. In one form the cone of Ni-Fe alloy, ferrochromium or steel and made by drawing, pressing or rolling is reinforced by a framework comprising rings 1, 2, Fig. 1, connected by four thin rods 3. The rods 3 engage the cone on its inside or outside and the rings 1, 2 are secured to the ends of the cone by copper soldering, or welding at a few points. The cone may have reinforcing embossed ridges 7, Fig. 2. The reinforcing framework may alternatively be of sheet material or may be built up on the cone wholly or partly by the Schoop method or by electrodeposition of metal, preferably iron. The rings 1, 2 need not be closed. In further forms there may be a plurality of rods, or ridges built up by the Schoop method or the reinforcing member of Fig. 1 may be pressed into a metal cone and secured thereto. The ends of the reinforcing framework are more rigid than the central parts. The invention can also be applied to large rectifiers having cylindrical metal walls.
Patent GB-429979-A (GB)
Title: Filing drawer for a cabinet
IPC: B42F17/02
Filed: 1934-10-24
Abstract: 429,979. Filing-cabinets. DUNNE & SOPER, Ltd., Hope Chambers, Ottawa, Ontario, Canada. Oct. 24, 1934, No. 30478. Convention date, Oct. 24, 1933. [Class 146 (i)] In a filing-drawer of the kind having a front adapted to swing outwardly and a follower to swing rearwardly, and mechanism provided between the two to tilt or return the follower when the front is tilted or returned, the mechanism comprises a member pivotally mounted on the side of the drawer and connected to the front by an arm, and means connecting the member to a longitudinally movable member co-operating with the follower, so that tilting of the drawer-front forwards tilts the follower rearwards. The front 14 is hinged at 15 to the drawer and connected by links 29 to circular levers 27, pivoted to the sides of the drawer. The follower plate 17 is provided with rollers running in two slotted members 30 which are carried by levers 33 pivoted to the drawer and actuated by links 37, 39 connected to the levers 27. The follower is hinged above the plane of the drawer bottom to a supporting plate 21 which moves below guide flanges at the bottom of the sides, and is provided with a bolt 24 pressed down by a spring 25. The bolt engages notches in the groove 23 and can be raised by a finger-piece 26. When the drawer front is pulled outwards by a knob 50, the levers 27 are rocked clockwise and rock the levers 33 anticlockwise, thus depressing the members 30 and tilting the follower backwards to the dotted-line position. The drawer is provided with external rails which engage rollers on a carriage sliding between guideways in the cabinet. A pivoted latch on the carriage prevents the drawer tilting in the carriage. The drawer may be locked by a latch 47 engaging the edge of the opening in the cabinet and the follower is then held in the vertical position by the mechanism connecting it to the drawer front.
Patent GB-158762-A (GB)
Title: Improvements in or relating to electro-magnetic wave reception apparatus
IPC: H04B1/12
Filed: 1919-12-05
Abstract: 158,762. Robinson, J., and Crowther, H. L. Dec. 5, 1919. Thermionic amplifiers and detectors; undesired signals, limiting.-In a receiving system adapted to reduce the disturbing effect of loud signals, the terminals 12, 13 of a low-frequency amplifier, to which the telephones would ordinarily be connected, are connected across the corners 10, 11 of a wheatstone bridge, the telephones 29 being put across the other corners 4, 14. The bridge is adjusted to be balanced when loud signals are being received, by means of a resistance in one arm varied by the incoming signals, in this case a three-electrode valve 15 shunted by a resistance 19. The valve 15 is so adjusted that, when signals are not being received, a current flows in its anode circuit owing to the P.D. between the points 12, 13. When signals are received, they act, through the medium of the rectifying-valve 16 to increase the resistance of the valve 15, according to their strength. When they are very loud, the resistance becomes substantially infinite and the bridge balances. In a modification, the same device is shown connected to the terminals of a high-frequency amplifier, the transformer across the terminals 12, 13 being then a high-frequency one, and the telephones being replaced by a circuit tuned to the desired signals and across which is connected a rectifying-valve telephone in its plate circuit.
Patent GB-383049-A (GB)
Title: Improved process for the separation in the anhydrous state of fatty acids contained in dilute aqueous solutions
IPC: C07C51/46
Filed: 1931-11-03
Abstract: Aliphatic acids such as acetic acid are extracted from their aqueous solutions by an aliphatic ketone with or without the addition of a hydrocarbon, and the extract is distilled with the return to the still of the solvent layer of the distillate as described in the parent Specification.  Ketones mentioned are methylethyl ketone, diethyl ketone, methyl-isopropyl ketone and light acetone oil.  the boiling-point of the ketone is lower than that of the acid to be extracted.  In an example, aqueous acetic acid is extracted with a mixture of 80 parts methylethyl ketone with 20 parts benzene. Specifications 283,702, 290,992, and 338,187, [all in Class 2 (iii), Dyes &c.], are referred to.
Patent GB-1349554-A (GB)
Title: Detergent products
IPC: C11D1/83
Filed: 1971-06-29
Abstract: 1349554 Dishwashing compositions ETHYL CORP 29 June 1971 [29 June 1970] 30491/71 Heading C5D Dishwashing compositions comprise a mixture of water-soluble compounds of formula wherein R is C 10-20  alkyl, 10-50% of the R groups being decyl, R<SP>1</SP> is -(CH 2 ) 2 - or x is 0 to 6 and averages 2 to 4 for the mixture and M is a cation. R may be linear or branched. M may be sodium, potassium, ammonium, ethanol-ammonium, diethanolammonium or triethanolammonium. The composition may also include another surface active agent, e.g. an alkylbenzene sulphonate, a fatty acid ethanolamide, lauryl diethanolamide, or a C 10-16  alkyl dimethylamine oxide.
Patent GB-1001533-A (GB)
Title: Improvements relating to pressure-sensitive mechanisms
IPC: B64D25/10
Filed: 1963-08-01
Abstract: 1,001,533. Automatic ejection apparatus. J. MARTIN. July 29, 1964 [Aug. 1, 1963], No. 30503/63. Addition to 991,253. Heading B7G. The pressure sensitive mechanism of the parent Specification is provided with a safety device for locking the lever 21 in the position in which it retains the plunger 13. As shown, the safety device comprises a spring-loaded plunger 31 withdrawable to its inoperative (unlocked) position by an attachment 40. The plunger is tubular and in the operative position vents the interior of the mechanism to atmosphere through openings 36, so that a pressure differential across the diaphragm, e.g. during a rapid descent, cannot occur. These openings are closed when the plunger is in the inoperative position (Fig. 2, not shown). Specifications 991,251 and 991,254 also are referred to.
Patent GB-748874-A (GB)
Title: Improvements in portable closets
Inventor: GREGG WILLIAM GEORGE DANIEL
IPC: A47K13/00
Filed: 1952-12-02
Abstract: 748,874. Folding stands. BUCK & SONS, Ltd., E. R. Dec. 1, 1953 [Dec. 2, 1952], No. 30509/52. Class 52(3). [Also in Group I] A folding frame consisting of four corner posts 1 connected by pivoted X-form stays, the lower ends 6 of which are slidable on the posts, supports a closet seat 14 with a lid 15 hinging through 270 degrees. According to the Provisional Specification a similar stand may support a detachable table top of flexible slatted construction or a canvas wash-bowl,
Patent GB-371292-A (GB)
Title: Improvements in or relating to water-tube steam generators with small liquid content
IPC: F22B35/10
Filed: 1931-11-04
Abstract: 371,292. Thermally-actuated valves. SULZER FR’RES SOC. ANON., Winterthur, Switzerland. Nov. 4, 1931, No. 30538. Convention date, Nov. 12, 1930. [Class 135.] In a tubulous instantaneous boiler, Fig. 1, to prevent the passage of water into the steampipe 4, a discharge valve 25 is so operated by a thermal element 9 on the boiler tubes or the steam outlet pipe, that water and steam escapes from the boiler at a point beyond and not adjacent to the feed inlet when the temperature of the water or steam falls below a predetermined minimum. The movement of the thermal element is communicated by the pressure of a fluid in the pipe 10 to a piston having a rod 14 which presses against the end of stem 24 of the discharge valve. A dashpot preventing a quick closing of the discharge valve by the pressure of a spring 30, Fig. 2, after release from the pressure of the piston-rod 14, consists of a piston 28 in a cylinder 29 into which liquid from a chamber 31 flows quickly through a bottom opening and from which the liquid returns slowly through an aperture in a disc 34 held against the bottom opening by a spring. The valve rod 36, Fig. 3, has an enlargement 38 sliding in a cylinder 40 on the piston 21, acted upon by the fluid pressure in the pipe 10. The discharge valve is opened when the temperature falls by the engagement of the end wall of the cylinder 40 with the enlargement 38. The discharge valve is also opened against the pressure of a spring 37 when the boiler pressure acting on the face of the valve rises above a certain point.
Patent GB-1146158-A (GB)
Title: Imidazole dyes of the anthraquinone series and their production
Inventor: GRASER FRITZ
IPC: C09B5/30
Filed: 1966-07-07
Abstract: 1,146,158. Imidazole dyes of the benzanthraquinone series. BADISCHE ANILIN- & SODA-FABRIK A.G. 7 July, 1966 [8 July, 1965], No.30550/66. Heading C4P. The invention comprises imidazole dyes of the formula wherein A represents a 1,4-phenylene or 1,3- phenylene radical which may bear halogen atoms or alkoxy groups. They may be obtained by reacting 1,2-diamino-3,4-benzanthraquinone with compounds of the formula X<SP>1</SP>-A-X<SP>2</SP>, wherein X<SP>1</SP> and X<SP>2</SP> each represent a -COOH, - COOR, -COY, -CHO, -CHY 2  or -CY 3  group, R is an alkyl, aralkyl or aryl radical and Y represents a halogen atom. The reaction may be carried out in a solvent or diluent in the presence or absence of agents, binding water and acids. Examples are given for the production of the dyes. They are useful for dyeing or printing materials derived from natural or regenerated cellulose or linear polyamides red to violet shades.
Patent GB-428216-A (GB)
Title: Improvements relating to poultry houses
IPC: A01K31/02
Filed: 1933-11-03
Abstract: 428,216. Time - controlled fastenings. PEARCY, P. J. B., Frost Hill Farm, Overton, Basingstoke, Hampshire. Nov. 3, 1933, No. 30555. [Class 44] The entrance of a poultry house is opened or closed at a predetermined time by means of the kind comprising a vertically slidable door 4, a suspension means 6 attached to said door, and a catch member 7 adapted to engage the said suspension means and support the entire weight of the door to maintain same in elevated position, said catch member 7 being under the control of the alarm winding mechanism 12 of an alarm clock in such manner as to release the door when the alarm mechanism operates ; in means of this kind, the catch member 7 has an operative portion 19 mounted for horizontal movement and the suspension means 6 comprises a length of chain or equivalent attached by one end to the door and free at the other end 22, the free end being adapted to engage the catch when the latter is in one position and becoming released from the catch when same is moved to the other position by actuation of the alarm winding mechanism. The alarm clock is supported by brackets 11 from a panel 10 mounted over a slot in the poultry house wall, the alarm wind arbor being provided with a hooked member 13 engaging a rod 15 forming part of the catch member 7 : the rod 15 engages at 16 a pivoted member 17 bent at its lower end to form the operative portion 19 of the catch. A wedge-shaped member 20 carried by the panel 10 comprises a vertical slot 21 in which the end 22 of the chain engages the portion 19 of the catch. An auxiliary door 5 may be maintained in the raised position by means of a catch 8 in which case actuation of the alarm mechanism closes the entrance to the poultry house : if, on the other hand, the door 5 is in the lowered position, such actuation opens the entrance. In a modification, the alarm clock is mounted in a casing, one wall of which is hinged for observation of the dial. In a further modification, the catch member comprises a flat bar slidable in a bearing in the wall of a casing in which the alarm clock is housed and engaging an eye dependent from a bar fixed on the casing. The main door is disposed on the outside of the wall of the house, the chain passing through a hole in such wall and engaging the catch bar between the said bearing and eye.
Patent GB-1270955-A (GB)
Title: Improved process for preparing 7-aminocephalosporanic acid
IPC: C07D501/18
Filed: 1969-06-17
Abstract: 1,270,955. Preparing 7-aminocephalosporanic acid. ELI LILLY & CO. 17 June, 1969 [19 June, 1968], No. 30581/69. Heading C2A. 7-Aminocephalosporanic acid (7-ACA) is prepared by reacting cephalosporin C with a nitrosating agent, a carbocyclic arenediazonium salt or a compound that provides positive halogen, in a solvent at not more than 60C., and destroying excess of the said agent, salt or compound by adding a compound of formula: MSO 3 NH 2 , (sulphamates); YSO 2 NH 2 , (sulphamides); YSO 2 NHNH 2 , (sulphonylhydrazides); (semicarbazides and thiosemicarbazides); (carbazides and thiocarbazides); (thioureas); (carbamates and thiocarbamates); (carbazates and thiocarbazates); R 2 N-NH 2 , (hydrazines); (hydrazides and thiohydrazides); or Z 2 -C=CHZ, (unsaturated hydrocarbons), wherein M is H, NR 4  or alkali metal; X is O or S; Y is R or NR 2 , Z alone is R or or two Zs together with their attached carbons form a C 5  to C 6  ring; R is H, C 1  to C 6  alkyl, or C 6  to C 12  aryl or aralkyl; and R<SP>1</SP> is C 1  to C 6  alkyl or C 6  to C 12  aryl or aralkyl; then evaporating the solvent from the reaction mixture to leave a residue; subjecting the residue to hydrolytic cleavage to yield 7-ACA and recovering the 7-ACA. Preferably the excess of the nitrosating agent, diazonium salt or halogen-providing compound is destroyed using one of the listed compounds together with an acid such as H 2 SO 4 , oxalic, toluenesulphonic, trifluoroacetic, trichloroacetic, methane-sulphonic or phosphoric acid. In a preferred process the cephalosporin C is treated with nitrosyl chloride in formic acid and acetonitrile at - 10 to + 5 C., excess nitrosyl chloride is destroyed with ammonium sulphamate, the residue after evaporating the solvents is dissolved in water, brought to pH 3À5 and the precipitated 7-ACA is collected.
Patent GB-1176188-A (GB)
Title: A New or Improved Supple Container for Cultivating Mushroom Spawn
IPC: A01G1/04
Filed: 1967-07-03
Abstract: 1,176,188. Vented bags. SOC. CIVILE AGRICOLE SOMYCEL. 3 July, 1967 [8 July, 1966], No. 30597/67. Heading B8K. [Also in Division A1] A flexible container has a wall 1 made of a plastics material in which is incorporated a filtering element 2 such that it is integral with the wall. The filtering element 2 may be made of a foam such as a polyester, polyurethane or polyether foam and is glued or heat-sealed between two edges of the container wall. The filtering element may extend over the whole or a part of one side of the container and may also extend into the container (as at 4).
Patent GB-630538-A (GB)
Title: Improved combined gas-heated griller and boiler plate
IPC: A47J37/06
Filed: 1947-11-18
Abstract: 630,538. Combined grillers and hotplates. GAS LIGHT & COKE CO., DUNNING, E. W. B., and SALMON, E. P. Nov. 18, 1947, No. 30635. [Class 28(i)] A combined gas-heated griller and hotplate comprises a single flat-topped metal plate 1 having spaced paralleled fins or staggered pips 2, 3 projecting from its underside, Fig. 4, preferably in two zones extending inwardly from opposite side edges of said plate, and frets 4 of expanded metal or other heat radiating elements which are abutted against the fins, etc., and are secured to the plate by screws, etc., 5. The frets 4 may be bent as shown in Fig. 3. The plate has corner projections 9 adapted to rest upon the upper edge of a closed sheet metal frame, not shown, which houses a burner tube 7 with side gas ports 8 and the walls of which function as heat reflectors, and the edges thereof are recessed at 10 to provide an outlet for combustion products from said frame. Instead of a single burner tube, a pair of tubes, each with a single row of gas ports and disposed below and along opposite sides of the plate, are employed. A shallow grease-collecting channel may be provided wholly or partly around the edge of the upper surface of the plate. A modification is described in which there is a circular plate with an annular zone of pips or radially disposed fins an annular fret, and a central ring or rose burner.
Patent GB-158445-A (GB)
Title: Improvements in or connected with apparatus for preventing the collection of moisture on shops and other windows
IPC: E06B7/12
Filed: 1919-12-08
Abstract: 158,445. Elliott, H. J. G., and Tilley, F. Dec. 8, 1919. Ventilators.-One or more inlets are provided in the sill and outlets in the head or transome of a window to prevent condensation. The inlets a comprise telescopic tubes, the outer end being funnel-shaped. The tubes have flanged ends to be secured by screws. A grid j with a slotted s'iding plate t may be provided to control the amount of air admitted. The inside of the outlet n is preferably bell-mouthed.
Patent GB-1445634-A (GB)
Title: Manufacture of carbon steel and alloys steels
IPC: C21B15/00
Filed: 1974-07-11
Abstract: 1445634 Producing iron; iron alloys ELECTRICITY COUNCIL J LAWTON and P D JOHNSTON 26 Sept 1975 [11 July 1974] 30790/74 Heading C7D Iron ore or scrap is leached with hydrochloric acid and the resulting ferric and/or ferrous chlorides are crystallized and dehydrated. Any ferric chloride is reduced with hydrogen to ferrous and the ferrous chloride is melted and sprayed into a reaction chamber containing hot hydrogen and sufficient hydrocarbon e.g. methane, to form metallic iron and sufficient carbon for the production of a desired steel. The ferrous chloride may be mixed with chlorides of other metals such as nickel, chromium and manganese to form an alloy steel. The reduction reaction may take place at about 1000‹C and the hot hydrogen chloride gas produced may be used to dehydrate the crystallized chlorides.
Patent GB-536942-A (GB)
Title: Improvements in, and connected with, shutters or plates for buildings
IPC: E06B9/04
Filed: 1939-11-27
Abstract: 536,942. Shutters. SHIRERS & LANCES, Ltd., and HINCHLIFFE, E. D. Nov. 27, 1939, No. 30829. [Class 20 (iii)] An anti-friction mounting for pivoted windows of a building comprises a shutter g with a member e having a part spherical seating cooperating with a spherical or part-spherical member d carried within the window or rooflight c'. A ball bearing may be interposed between part-spherical concave seatings formed on co-operating members of the shutter and window opening. The shutter member e is bolted to one flange f<SP>2</SP> of an L section strip f on one edge of the shutter and the co-operating member,d is fixed to a parallel flange a<SP>2</SP> of another L section strip a in the window opening. Glazing bars c are supported by the flange a'.
Patent GB-341093-A (GB)
Title: Improvements in or relating to galvanising or electro-plating processes
IPC: C25D17/16
Filed: 1929-10-11
Abstract: 341,093. Electrolysis. WALDBERG SOC. ANON., 223, Boulevard Pereire, Paris, and DEVECIS, M. VON, 1, Verpeleti Ut, Budapest. Oct. 11, 1929, No. 30857. [Class 41.] Barrel apparatus.-Articles to be plated are pressed against the wall of the drum in order to ensure good contact, by a force additional to their own weight which may be periodically interrupted in order to agitate the articles. The drum may be rotated at a speed such that the centrifugal force on the articles is greater than their weight and the speed periodically diminished e.g. from 1000 to 600 revs. per min. to promote turning over of the articles. When iron, steel, or nickel articles are to be plated the additional force may be provided by permanent magnets or by electromagnets the circuit of which is periodically interrupted. Centrifugal force and magnetic force may be employed in combination. The drum may be entirely of conducting material or of insulating material provided with conductors at various places. It may form the electrolyte container or may be formed as a sieve which is immersed in the electrolyte. By connecting the drum as the positive pole, platings may be removed from the articles. The apparatus is particularly applicable when employing high current densities as in chromium plating.