baber/WOPTO huggingface dataset:
Patent GB-448304-A (GB)
Title: Constructional toys for obtaining dioramas
IPC: A63J13/00
Filed: 1935-06-14
Abstract: 448,304. Toys; advertising models. PERONNET, J. C. L., 20 bis, Rue de Chartres, Neuilly-sur-Seine, France. June 14, 1935, No. 17197. Convention date, Dec. 13, 1934. [Class 132 (iii)] [See also Group XVIII] Constructional toy or advertising device, Figs. 1 and 2, for obtaining dioramas comprises a plurality of marked sheets, for example as shown in Fig. 9, from which are cut the box 1 with wide opening 10, side walls, false bottom 12, background and sideground 14, 14a and foreground 18, and the silhouettes 16, 17, 20, 21, and 22, the parts being held together by slits 13, and tongues 15 and 19. The foregound 18 has slits for engaging the silhouettes 21, 22. A lamp 23 is held in a cut-out portion 24 of the flap 3 which hides the lamp and is silvered or gilded to act as a reflector. A plurality of sheets is provided pertaining to different subjects.
Patent GB-562014-A (GB)
Title: Process for the manufacture of trihydroxy-abietic acid
IPC: C07C51/377
Filed: 1942-12-03
Abstract: Trihydroxy abietic acid is prepared by the action of a reducing agent on a halogeno-trihydroxy abietic acid.  The parent material is prepared from abietic acid by the action of an oxidizing agent, as described in Helv. Chim. Acta 1938, vol. 21, page 573, followed by treatment with a halogen hydracid.  In examples: (1) Zinc dust is added to a glacial acetic acid solution of bromo-trihydroxy-abietic acid and the solution maintained at 75 DEG -80 DEG  C.  If desired, the reaction may be accelerated by a little platinum chloride.  The product is trihydroxy-abietic acid. (2) To a glacial acetic acid solution of bromo-trihydroxy-abietic acid there is added anhydrous potassium acetate and a palladium catalyst.  Hydrogen is admitted at 70 DEG  C. and 30 atm. pressure. After the removal of the catalyst and solvent, the same product is obtained as in example 1.
Patent GB-730519-A (GB)
Title: Improvements in the production of acetic anhydride
IPC: C07C51/56
Filed: 1953-06-23
Abstract: Acetic anhydride is obtained by treating dimethyl ether or methyl acetate with carbon monoxide under a pressure exceeding 200 atmospheres, e.g. between 400 and 800 atmospheres and at a temperature between 100 DEG  and 250 DEG  C. in an anhydrous liquid medium containing as catalyst cobalt bromide or iodide or a mixture thereof.  Instead of using cobalt bromide or iodide as catalyst there may be used a mixture of cobalt metal or a cobalt compound with bromine or iodine or with a bromine or iodine compound such as an alkyl bromide or iodide.  It is preferred to carry out the reaction in the presence of a solvent for the catalyst.  Specified solvents are the lower N-alkylated pyrrolidones, particularly N-methyl pyrrolidone, acetic acid and acetic anhydride.  The process may be carried out batchwise or continuously and it is not necessary to carry out the reaction to completion since the unchanged starting material may be used again in the reaction and the catalyst recovered may also be used again without further treatment.  The carbon monoxide may be used in concentrated form or mixtures of carbon monoxide and hydrogen containing at least 60 per cent by volume of carbon monoxide may be used.  Examples are given in which methyl acetate is converted using (1) cobalt iodide, and (2) a mixture of cobalt bromide and ethyl iodide respectively as catalyst and an example is also given in which dimethyl ether is converted in the presence of a mixture of cobalt bromide and ethyl iodide as catalyst. In each case the carbon monoxide used contains a minor amount of hydrogen and the reaction is carried out in the presence of a solvent which in the case of (1) is either N-methyl pyrrolidone or acetic anhydride and in the case of (2) is N-methyl pyrrolidone.  In the example using dimethyl ether as starting material the solvent is N-methyl pyrrolidone, acetic anhydride, or acetic acid.ALSO:Catalysts for the production of acetic anhydride by treating dimethyl ether or methyl acetate with carbon monoxide at elevated temperature and pressure in an anhydrous liquid medium (see Group IV (b)) comprise either cobalt bromide or iodide or a mixture thereof or a mixture of cobalt metal or a cobalt compound with bromine or iodine or with a bromine or iodine compound such as an alkyl bromide or iodide. Examples include the use of a mixture of cobalt bromide and ethyl iodide as catalyst.
Patent GB-1083640-A (GB)
Title: Plant and process for reducing oxides which are difficult to reduce
IPC: C21B13/08
Filed: 1965-04-23
Abstract: Plant for reducing oxides which are difficult to reduce comprises a rotary furnace having a substantially horizontal axis of rotation which is open at both ends, a burner to provide an oxidizing flame above the reducing zone next to the metallic bath, the hottest part of the flame being at least 1900 DEG C.  The burner is positioned at one end of the furnace and a means for discharging the fumes at the other.  The burner is supplied with dissociated natural-gas from a natural-gas convertor and oxygen or heavily oxygenated air is blown in therewith.  In examples steels and other iron based alloys containing for example Cr, Mn and V, are produced by reduction of suitable oxides and one example relates to the production of zinc from zinc oxide. Reducing agents referred to are carbonaceous, iron alloys, aluminium or silicon.
Patent GB-454109-A (GB)
Title: Improvements in or relating to air gas generators
IPC: C10J1/10
Filed: 1935-06-17
Abstract: 454,109. Air - gas generation. FAUCONNIER, E., 66, Rue Charles Fourier, Vitry-Port, Seine, France. June 17, 1935, No. 17407. Convention date, June 16, 1934. [Class 55 (ii)] Air-gas generators of the type in which a switch in the circuit of an air pump motor is opened and closed by a lever carried on the top of a bell gas holder have a carburetter formed as a parallelepipedic box with baffling partitions slightly inclined in opposite directions and filled with capillary material impregnated with liquid fuel. A pump E draws air through a pipe b<1> into a box-shaped carburetter B filled with capillary material such as carbonized cork, finely ground coal, or felted hair and having slightly inclined baffles b. Gasoline &c. is supplied through a pipe I from a tank A by means of a cup on a rotary arm driven from the pump motor E<1>. Carburetted air passes through a pipe b4, pump E and a pipe L with liquid seal L<1> into a bell holder C whence it is delivered through a tube K. As the holder descends on consumption of the gas, a lever H acts on a switch G to close the circuit of the air pump motor ; when gas accumulates in the holder, the reverse action stops the air pump and gasoline feed supply Specifications 9325/08, [Class 55], and 12347 / 10, [Class 55 (ii)], are referred to
Patent GB-319231-A (GB)
Title: An apparatus for detecting the presence of explosive or combustible gases
IPC: G01N7/06
Filed: 1928-06-16
Abstract: 319,231. McLuckie, C. June 16, 1928. Gas analysis.-An apparatus for ascertaining the presence of explosive or combustible gases in air comprises two chambers 1, 2 formed in a metallic vessel and connected by a manometer tube 15, the chamber 1 being a combustion chamber and the chamber 2 a compensating chamber. Passages connecting the chambers to the source of gas to be tested or the air are controlled by a multiple way cock 3 which may be turned to allow gas to be tested to be forced in through a passage 4 into the chamber 1 while contained gas is allowed to pass out through a passage 5, the chamber 2 being at the same time connected to atmosphere so that both chambers are at atmospheric pressure. The cock is then turned so that the chambers 1, 2 are closed and the combustion is effected bv a platinum wire 14 heated by an electric current. After cooling to allow the chambers 1, 2 to reach the same temperature the cock is further turned to connect the chambers to the manometer.
Patent GB-112481-A (GB)
Title: Improved Method of Multiplying the Frequency of Electric Currents.
IPC: H03B19/03
Filed: 1916-12-05
Abstract: 112,481. Marconi's Wireless Telegraph Co., and Shoenberg, I. Dec. 5, 1916. Frequency, changing.-The frequency of a polyphase current is changed by introducing into each phase a choking-coil W<1> on a closed iron core which is saturated by a winding W<2> connected to a source of direct current, the number of coils being chosen to deform the wave into such a shape that the phases may be directly added without the use of transformers. A four-phase current is thereby changed into a single phase having four times the frequency. The polyphase current may be obtained in the manner described in Specification 14423/15.
Patent GB-119750-A (GB)
Title: Improvements in or relating to Crutches.
Inventor: WELDON FRANCIS
IPC: A61H3/02
Filed: 1917-11-27
Abstract: 119,750. Weldon, F. Nov. 27, 1917. Crutches.-The head-piece and handle are arranged in vertical planes inclined to one another, so that, in use, the handle takes a fore-and-aft direction while the head is inclined forwardly and inwardly. In the form shown in Figs. 1 and 2, the handle a is inclined forwardly and outwardly. It is secured at one end close to one side member b by an eye-bolt and nut c, and at the other end to the other side-member b by two eye-bolts and nuts d so as to stand off from the side member. The eye-bolts may pass through the handle and be secured in desired adjustment by nuts. Further adjustability may be obtained by providing a series of holes f in the side members. The handle may be secured to one side member at one end and to the opposite side of the other side member at the other end. The head-piece g may be inclined to the plane of the side-members by securing it at each end to opposite sides of the side-members, or the holes in the head-piece to receive the side-members may be in a plane inclined to the plane of the head-piece.
Patent GB-1464006-A (GB)
Title: Gas purufication
IPC: C10K1/16
Filed: 1974-04-22
Abstract: 1464006 Absorbing H 2 S ALLIED CHEMICAL CORP 22 April 1974 [10 May 1973] 17590/74 Heading B1L In a process for removing substantially all H 2 S and little CO 2  from a gas mixture comprising CH 4 , CO 2 +H 2 S (e.g. natural gas) the gas mixture cooled in heat exchanger 2 is passed via line 5 through absorber 4 in counter current to solvent comprising a dialkyl ether of a polyalkylene glycol and having CO 2  dissolved therein, to remove substantially all the H 2 S. The solvent containing H 2 S is passed via line 7 to flash tank 8 to remove CH 4  and CO 2  therefrom and then to stripper 13 where it is contacted with a countercurrent stream of stripping gas. The gas mixture from the absorber 4 is expanded and cooled at 23 where it is used to drive a turbine to process power, and then contacted with solvent from the bottom of stripper 13 in conditioner 21 whereby the solvent is cooled and CO 2  is dissolved in the solvent. The solvent from conditioner 21 is then supplied via lines 25 and 6 to absorber 4. The temperature in absorber 4 and stripper 13 is respectively maintained at 20-140‹F and 70-300‹F. The pressure in absorber 4 is 400- 2000 lbs/in<SP>2</SP> absolute. The pressure in stripper 13 may be 12-100 lbs/in<SP>2</SP> absolute.
Patent GB-871401-A (GB)
Title: A process for the preparation of polybutadienes and catalysts therefor
IPC: C10K1/02
Filed: 1958-06-03
Abstract: Butadiene in the liquid or dissolved state is polymerized to form a solid non-sticky polymer of preponderantly 1 : 2-linkage by use of a catalyst prepared by reaction of (a) a chloride of Mn, Fe, Co or Ni or an acetylacetonate of Co or Ni with (b) an organosodium compound, e.g. n-amyl-Na and (c) an organocadmium compound, e.g. Et2Cd.  At least one hydrocarbon solvent, e.g. an aliphatic hydrocarbon such as n-pentane, is preferably used.  After polymerization the catalyst is destroyed by an aliphatic alcohol, preferably ethanol, and the polymer is washed successively with aqueous ethanolic HC1, water and ethanol, the latter containing an antioxidant such as betaphenylnaphthylamine.ALSO:Butadiene in the liquid or dissolved state is polymerized to form a solid non-sticky polymer of preponderantly 1:2-linkage by use of a catalyst prepared by reaction of (a) a chloride of Mn, Fe, Co or Ni or an acetylacetonate of Co or Ni with (b) an organosodium compound, e.g. n-amyl-Na and (c) an organocadmium compound, e.g. Et2Cd.  At least one hydrocarbon solvent, e.g. an aliphatic hydrocarbon such as n-pentane, is preferably used.  After polymerization the catalyst is destroyed by an aliphatic alcohol, preferably ethanol, and the polymer is washed successively with aqueous ethanolic HCl, water and ethanol, the latter containing an antioxidant such as betaphenylnaphthylamine.
Patent GB-906590-A (GB)
Title: Improvements in or relating to apparatus for generating control signals
Inventor: FORREST MICHAEL LAUGHARNE NEVI
IPC: G06K7/016
Filed: 1958-06-04
Abstract: 906,590. Sensing record cards. INTERNATIONAL COMPUTERS & TABULATORS Ltd. June 2, 1959 [June 4, 1958], No. 17861/58. Class 106 (1). Apparatus for generating timing signals corresponding to uniformly-spaced positions on a document fed past a reference position, includes means for sensing a fixed point on the document at a succession of sensing locations spaced apart by a distance equal to an integral multiple greater than one of the space between adjacent document positions. As described, phototransistors 11-1, 11-2, 11-3 ... 11- 30, Fig. 1, spaced apart by the equivalent of three card columns, are arranged in the line of travel of a record card 1. They are connected in parallel to a line 12, Fig. 2, and as each one is obscured from a light source 37 in succession by the edge of the card, a negative impulse is applied to a transistor 13. This excites a tuned circuit 18, 19, which emits a sine wave, via a secondary winding 20 on a ferrite core, of a frequency equal to the rate of passage of card columns; the tuned circuit is maintained and re-excited by the subsequent cutting off of transistors 11-2, 11-3 &c. in succession. A further transistor 21 serves to amplify and, with the aid of diodes 23, 25, to shape the output signals available at 26. Two columns of phototransistors 7, 8, spaced apart by the equivalent of three card columns, sense the data on the card. A " start " signal is obtained when photo-transistor 11-3 is obscured; this supplies a pulse not only to transistor 13, but also, via a transformer 28, to a transistor 31 which delivers an amplified and shaped pulse at 32. " Stop " signals are similarly derived from transistors 11-29 and 11-30. It is stated that the cards (or cheques, invoices &c.) may be fed with the longer edge leading, and may be fed at random intervals. Contact brushes can be used instead of phototransistors. Specification 855,848 is referred to.
Patent GB-1308036-A (GB)
Title: Lightweight pallet and method of making same
IPC: B65D19/00
Filed: 1970-04-15
Abstract: 1308036 Moulding lightweight pallets WILLCOX & GIBBS Inc 15 April 1970 [1 Aug 1969] 17881/70 Heading B5A [Also in Division B8] In a method of forming a moulded plastics pallet (see Division B8] the lower half of the mould 30 is lined with a reinforcing layer of material and then filled with moist, partially expanded beads of polystyrene. Flaps 42 of the reinforcing layer are then folded over the mould and the mould is then closed by an upper member 30b. The mould is then heated by dielectric heating, expanding the polystyrene and bonding the same to the reinforcing layer. An adhesive or the like may be applied to the reinforcing layer to aid the bonding.
Patent GB-704446-A (GB)
Title: Apparatus for delivering water treatment solution into boiler feed water
Filed: 1952-07-15
Abstract: 704,446. Proportionate mixing of liquids. VAPOR HEATING CORPORATION. July 15, 1952 [Aug. 3, 1951], No. 17901/52. Class 86 Apparatus for delivering water treatment solution into a reservoir for boiler feed water comprises a storage, tank for water treatment solution, a measuring tank for segregating a measured quantity of solution from the storage tank, a supply conduit connecting the measuring tank with the reservoir and means for applying pressure fluid to the solution in the measuring tank to torce the solution therein into the reservoir. A measuring tank 24 receives water treatment solution from a storage tank 23 by way of a conduit 25 containing a one way check valve 26. An air delivery pipe 29 which includes a solenoid control valve 28 connects the measuring tank 24 with a source of compressed air. A water reservoir for boiler feed water is adapted to be filled through a pipe 21 having a shut off valve 22 which may be a manual control valve, as shown, or. may be arranged for automatic operation in response to high and low levels of water in the reservoir 11. A branch pipe 37 in the pipe 21 passes into a chamber 38 of a diaphragm operated switch 34, the arrangement being such that the switch 34 is closed when water flows through the pipe 21 thereby completing an electric circuit which operates the solenoid valve 28 and applies compressed air to the solution in the measuring tank to force the solution therein through a pipe 27, and a spring closed valve 30 into the reservoir 11. The pipe 27 has a common inlet into the reservoir with a pipe 20 which returns water from the boiler 18 to the reservoir, and a one way check valve 31 is inserted in the pipe 27 to prevent the returning water from being forced into the measuring tank. After a charge of solution has been delivered from the measuring tank and the valve 22 is closed, the air in the measuring tank is slowly vented by way of a restricted branch pipe 32 into the storage tank 23 and thereafter from the tank 23 through a vent pipe 33, allowing a fresh charge of treatment solution to pass into the mixing tank 24. The restricted venting means 32 delays the refilling of the measuring tank 24 sufficiently to permit an interruption in the delivery of water into the reservoir 11 for a period of time without resulting in the delivery of a second charge of water treatment solution into the reservoir.
Patent GB-504684-A (GB)
Title: Improvements in vulcanization of rubber
IPC: C08K5/00
Filed: 1938-06-17
Abstract: 504,684. Vulcanizing rubber; salts of amines. WINGFOOT CORPORATION. June 17, 1938, No. 18025. Convention date, Sept. 24, 1937. [Class 70] [Also in Group IV] A vulcanization accelerator for rubber consists of a thiazole type accelerator and a guanidine salt of a dithiocarbamic acid derived from a primary amine. Thus, 21À1 parts of symmetrical diphenyl guanidine and 10À7 parts of benzylamine were stirred into 75 parts of benzene. To this mixture were added 7À6 parts of carbon bisulphide. An additive guanidine salt of the formula was formed. This substance was added with 2-mercaptobenzthiazole to a mixture of smoked sheet rubber, zinc oxide and sulphur, to accelerate the vulcanization. Other guanidine accelerators of general formula S # in which RNH-C-S- denotes a dithiocarbamate residue of a dithiocarbamic acid derived from a primary amine RNH2, and X denotes hydrogen, alkyl, aryl or aralkyl. U.S.A. Specifications 1,546,876, 1,672,548, and 1,698,569 are referred to.
Patent GB-830596-A (GB)
Title: An improved clamp for electric conductors
Inventor: PORTER FRANK
IPC: H01R4/38
Filed: 1958-06-06
Abstract: 830,596. Direct connections between conductors. PORTER ELECTRICAL PRODUCTS Ltd. June 6, 1958, No. 18075/58. Class 38 (1). Two flat conducting members 10, 10<SP>1</SP> which may be of the type disclosed in Specification 576,491, are clamped together in intersecting relationship in a slotted metal body 11 having limbs 12, 13 with steps 16 and 17 respectively in their inner faces to locate the edges of conductors 10<SP>1</SP>, 10. Clamping screws 19 pass through and locate the conductors and are screwed into tapped holes in limb 13. The clamp may be of circular form in plan (Fig. 5, not shown).
Patent GB-181071-A (GB)
Abstract: 181,071. Waite, T., and Boldy, T. Feb. 26, 1921. . Strainers having sheet straining-materials. - 'Sewage or the effluent from wool washing, dyeing or like operations entering the tank 7 by an inlet 8, is strained through the perforated and curved metallic lower portion 5a of an inclined casing 2 and leaves through an outlet 9. The upper portion 6 of the bottom of the casing is of wood and imperforate. The solid matter retained by the strainer 5<a> is pushed up the part 6 by bristles 10, secured to endless chains travelling round sprocket wheels 13. A fork or comb 20 clears the solid matter from the brushes so that it falls into a receptacle 26. The ends of the brushes 10 are provided with anti-friction rollers 17, Fig. 3, or the like, which engage with grooves or guides formed by angle-iron strips 22 secured to the sides of the casing 2. Tilting of the brushes may be prevented by providing a small roller or arm behind each anti-friction roller and adapted to engage the underside of the flange of the upper strip 22. Reference has been directed by the Comptroller to Specification 19718/11.
Patent GB-587184-A (GB)
Title: Improvements relating to liquid measuring apparatus
IPC: G01F3/26
Filed: 1944-09-25
Abstract: 587,184. Weighing-apparatus. HORSLER, J. S., and STOCKDALE, J. O. Sept. 25, 1944, No. 18275. [Class 143] [Also in Group XXIX] Relates to automatic weighing-apparatus for liquids, particularly applicable in connection with the mechanical milking of cows, of the kind in which liquid is delivered from a tray 1, through a valve 8, to a counterweighted pivoted weighing vessel 13 which overbalances on receiving a predetermined weight of liquid and tilts to deliver this liquid into a pail 3 the valve 8 closing by gravity when the vessel 13 tilts. According to the invention the vessel 13 is provided with an integral inner vessel 16 with a bottom 17 open at one end 17a to the vessel 13 so that the liquid is delivered to the vessel 13 through the inner vessel 16, the arrangement being such that, when the vessel 13 tilts the bottom 17 of the inner vessel is inclined and drips of liquid from the closed valve 8 are retained in the inner vessel until the vessel 13 returns to its normal position after delivery. The valve 8 is shown as a butterfly valve which is opened by a lever 12, engaged by the vessel 13 when the latter returns after delivery. The butterfly valve may be replaced by a poppet valve. In order to adjust the normal position of the vessel 13, for calibration purposes, a set screw 19 acting as a stop for the vessel 13 is carried by a bell-crank lever 20 maintained in the horizontal position by a weight 22. The number of deliveries made by the vessel 13 may be recorded by 'counting mechanism including a star-wheel 25 operated by a trigger 26 pivoted to the vessel 13. The apparatus may be supported within a cylindrical container 2 adapted to seat on a milking pail 3 and support a cover 5 upon which the suction producing or pulsating means is supported.
Patent GB-1421484-A (GB)
Title: Connecting elements for lengths of strip skirting  board assemblies
IPC: E04F19/04
Filed: 1973-04-16
Abstract: 1421484 Skirting connectors SIGO-ENGETUDES SARL T6 April 1973 [18 April 1972] 18278/73 Heading E1B A one piece skirting corner connector 8 has members 9 to 11, and 9' to 11' projecting from its rear face to engage the end of a skirting pushed therein. The circular section members 9, 9' entering longitudinal C shaped projections in the backs of the skirtings and the rectangular section members 10, 10' and 11, 11' receiving webs projecting from the backs of the skirting. An end closer is provided.