baber/WOPTO huggingface dataset:
Patent GB-725027-A (GB)
Title: Stapling machine
Inventor: VANCURA RUDOLF
Filed: 1953-04-30
Abstract: 725,027. Stapling. SACHS, L., [trading as METALLWARENFABRIK H. SACHS INHABER Dr. L. SACHS]. April 30, 1953, No. 11964/53. Class 89 (3). A stapling device for use with staples 8 of various thicknesses is provided with a staple guideway 15 of a thickness equal to that of the thickest staple and a driver 16 of a thickness equal to that of the thinnest staple to be used. The driver 16 which comprises part of a spring plate secured to a pivoted arm 3 bears against the end wall of the magazine 2. The staples are fed by a spring-pressed pusher 12 and are held down by a spring 20 on the spring plate 16. The anvil 5 is slidable on the base 1 to bring different clinching grooves under the guideway 15, and is held in adjusted position by detent means.
Patent GB-543426-A (GB)
Title: Manufacture of polyamides
IPC: D06P1/52
Filed: 1940-07-22
Abstract: 543,426. Polyamides. DU PONT DE NEMOURS & CO., E. I. July 22, 1940, No. 11988. Convention date, July 20, 1939. [Class 2 (iii)] Polyamides are prepared by heating, to re-action temperature, a polyamide-forming composition comprising a re-actant which contains, as a hetero atom, a tertiary nitrogen atom linked by divalent hydrocarbon radicals to the amide-forming groups in said re-actant, the said tertiary nitrogen atom being joined to the hydrocarbon radicals by single bonds only. Thus the tertiary nitrogen atom may be present in an amino-acid of the formula or in a diamine of the formula or in a dicarboxylic acid of the formula The reaction may be effected in the presence or in the absence of a solvent, and temperatures of 150-300‹C. are specified. When diamine and dibasic acid reactants are used, they are preferably so chosen that the sum of their radical lengths is at least 9, and their salt may be separated and purified prior to its conversion into polyamide. The re-action is preferably carried out in the absence' of air, and anti-oxidants may be added. Catalysts are usually unnecessary, though they may be used. Examples are given cf the preparation of polyamides from: (1) N-meth,yliminodiacetic acid and pentamethylenediamine : (2) ethylenediamine and N-methyliminodiacetic acid : (3) hexamethylenediamine and N:N<SP>1</SP>-piperazine diacetic acid: (4) N:N-di (#-aminopropyl)- methylamine and adipic acid : (5) triglycoldiamine and N-methyliminodiacetic acid : (6) triglycoldiamine and N:N<SP>1</SP>-piperazine diacetic acid. Other specified starting materials are N- #- aminoethyl-N<SP>1</SP>-carboxy-methyl piperazine ; di (#-aminobutyl)- methylamine ; di (#-aminohexyl) methylamine; di (#-aminopentyl) phenylamine; di (#-aminoethyl)- piperazine ; N-phenyliminodiacetic acid ; N- ethyliminodiacetic acid ; N-methyliminodipropionic acid and N-methyliminodibutyric acid. Inter-pclyamides may be prepared by the addition of such reactants as hexamethylene diammonium adipate, decamethylene diammonium sebacate, bexamethylene diammonium sebacate, 6-amino-caproic acid and 11- aminoundecanoic acid. Specifications 461,236, 461,237 and 487,734, and U.S.A. Specifications 2,071,250 and 2,130,948 are referred to. The Specification as open to inspection under Sect. 91, describes the preparation of a polymer from decamethylenediamine and N:N<SP>1</SP>-diketopiperazine diacetic acid, but this subject-matter does not appear in the Specification as accepted.
Patent GB-496546-A (GB)
Title: Improvements in or relating to oil seals for rotating parts such as shafts, housings and the like, and method of manufacturing same
IPC: F16C33/74
Filed: 1937-04-27
Abstract: 496,546. Stuffing - box substitutes. STEVENS, A. H. (Chicago Rawhide Manufacturing Co.) April 27, 1937, No. 12032. [Class 122 (v)] In a self-contained oil seal the sealing portion of the packing-ring is formed at the time of assembling it between the rigid members of the seal. In one form a flat packing 11 is mounted between a casing 10 having a conical lip 15 and plates 12, 17 in a press. Dies 21, 23 of the press are first moved together to clamp the parts together and to deform the lip of the packing to conical shape. Die 23 then comes to rest and die 21 continues to move and turns the edge 28 of the casing over plate 17 to maintain the parts in assembled condition. In an alternative arrangement the conical lip 15 of the casing is also formed during the pressing operation. Two packing rings may be arranged in a single casing, Fig. 13, and the seal may be of internal or external type. The packing lip may be spring loaded. Specification 452,201 is referred to.
Patent GB-474296-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J29/06
Filed: 1936-04-28
Abstract: 474,296. Discharge apparatus. BAIRD TELEVISION, Ltd., LANCE, T. M. C., and JONES, V. April 28, 1936, No. 12064. [Class 39 (i)] In an electron-discharge device of the type in which electrons emitted from a photo-electric cathode 2, in the form of a sensitive grid or gauze, are attracted through the cathode to an anode 3 which is arranged facing the side of the cathode which is opposite to that side upon which light is incident, there is provided an electrode 6 adjacent the cathode 2 but on the side thereof which is remote from the anode, this electrode being maintained at a substantially lower potential than the cathode. The electrode 6 may be in the form of a wire mesh, or of a thin translucent and conducting film of metal, such as gold, sputtered on a glass plate or other translucent carrier or on the envelope of the device. The anode 3 may be a storage electrode which is scanned by a cathode-ray beam to produce image signals or it may be a fluorescent screen on to which electrons emitted by the cathode are focused to form an image.
Patent GB-345845-A (GB)
Title: Improvements in or relating to varnishes and lacquers
IPC: C08G12/12
Filed: 1930-04-17
Abstract: A varnish or lacquer is prepared by heating together an aqueous paste of urea, thiourea or a derivative thereof and an aqueous paste of a solid polymer of formaldehyde such as paraformaldehyde, with the addition of a small proportion of an accelerating catalyst to the urea paste, but without the addition of an organic solvent or of any reagent to promote solution of the solid polymer of formaldehyde. Part of the solid ploymer of formaldehyde may be replaced by formaldehyde, and part of the urea, thiourea or derivative by a phenol.  As catalysts are specified: salts, such as sodium phosphate; organic acids, such as benzoic acid; inorganic bases, such as hydroxylamine; organic bases, such as aniline; or amino-compounds in general.  The product may contain delaying agents, such as salts of alkali or alkaline earth metals, or accelerating agents, such as hexamethylenetetramine, pyridine or ammonia.  The solution may be diluted with warm water or an organic solvent such as alcohol, ether, hydrocarbons, halogenated hydrocarbons or ketones.  Colouring matters, such as acid or basic dyestuffs, or mineral pigments, or materials such as powdered glass, talc, metallic filings or dust, flakes of glass or shell which produce a scintillating or mosaic effect, may also be incorporated in the lacquer or varnish.ALSO:A varnish or lacquer is prepared by heating together an aqueous paste of urea, thiourea or a derivative thereof and an aqueous paste of a solid polymer of formaldehyde such as paraformaldehyde, with the addition of a small proportion of an accelerating catalyst to the urea paste, but without the addition of an organic solvent or of any reagent to promote solution of the solid polymer of formaldehyde. Part of the solid polymer of formaldehyde may be replaced by formaldehyde and part of the urea, thiourea or derivative by a phenol.  As catalysts are specified: salts, such as sodium phosphate; organic acids, such as benzoic acid; inorganic bases, such as hydroxylamine; organic bases, such as aniline; or amino-compounds in general.  The product may also contain delaying agents, such as salts of alkali or alkaline-earth metals or of carboxylic acids, or accelerating agents such as hexamethylenetetramine, pyridine, or ammonia.  The solution may be diluted with warm water or an organic solvent such as alcohol, ether, hydrocarbons, halogenated hydrocarbons or ketones. Colouring matters, such as acid or basic dyestuffs or mineral pigments, or materials such as powdered glass, talc, metallic filings or dust, flakes of glass or shell which produce a scintillating or mosaic effect, may also be incorporated in the lacquer or varnish.
Patent GB-548993-A (GB)
Title: An improved let-off motion for looms
IPC: D03D49/06
Filed: 1941-09-22
Abstract: 548,993. Letting-off warps in looms. BRITISH COTTON INDUSTRY RESEARCH ASSOCIATION, CUMMINGS, E. W., GROGAN, G., and VINCENT, J. J. Sept. 22, 1941. No. 12221. [Class 142 (ii)] A let-off motion in which the warp let-off is controlled by the friction of chains 9 or ropes round the beam ruffles and in which the chains or ropes are tensioned by compression springs 12 is provided with toggle mechanism 25, 27 or cam means so that the chain or rope tension is reduced by further compression of the springs 12 and thereafter the tension is reimposed by allowing the springs to extend and cause the beam to rotate backwards. The beam ruffles are mounted upon shallow V-shaped bearings 8 recessed or channelled to receive the chains or ropes. A handle 24 is provided for actuating the toggle mechanism, and the handle is retained by a stop 31 in a position slightly to one side of its dead centre. Instead of providing a chain or rope and let-off mechanism for each ruffle, the let-off motion may operate upon the ruffle at one side only of the loom.
Patent GB-556456-A (GB)
Title: Preparation of hydrogenated polymerized rosin and hydrogenated polymerized rosin esters
IPC: C09F1/00
Filed: 1941-09-22
Abstract: 556,456. Resinous products. HERCULES POWDER CO. Sept. 22, 1941, No. 12258. Convention date, Feb. 8. [Class 2 (iii)] A rosin product is prepared by hydrogenating polymerized rosin or a polymerized rosin ester. Specified starting materials are polymerized wood rosin, polymerized gum rosin, polymerized abietic acid, polymerized pimeric acid, polymerized sapinic acid, and polymerized rosin ester with glycerine, diglycerine, pentaerythritol, dipentaerythritol, sorbitol, ethylene glycol, propylene glycol, diethylene glycol, dibutylene glycol, dipropylene glycol, methyl alcohol, ethyl alcohol, propyl alcohol, butyl alcohol, furfuryl alcohol, tetrahydrofurfuryl alcohol or benzyl alcohol. The hydrogenation is preferably carried out using a hydrogenation catalyst and a solvent for the resinous raw material, the. solution being of 5 per cent. to 70 per cent. strength. Specified catalysts are activated nickel, Raney nickel, active nickel oxide, copper chromite, activated platinum, platinum oxide, active palladium, palladium oxide, active rhodium and rhodium oxide, and these may be supported on silica gel, alumina, pumice, diatomaceous earth, activated carbon or quartz. Hydrogenation temperatures of 20‹C. to 250‹C. times of 15 minutes to 10 hours, and pressures of 15 to 8,000 pounds per square inch, are specified. Examples are given.
Patent GB-218064-A (GB)
Title: Improvements in or relating to means for maintaining the insulation resistance of electric cables and the like
IPC: H02G3/02
Filed: 1923-05-08
Abstract: 218,064. Henley's Telegraph Works Co., Ltd., W. T., and Dunsheath, P. May 8, 1923. Boxes. - Means for dehydrating the air in electric switch boxes and the like comprise a glass or like bottle k containing dehydrating material such as calcium chloride or phosphorus pentoxide, a metal or like container a for the bottle, and means for securing the container to the wall f of the switch box g. Inspection apertures b are formed in the end and in the walls of the metallic casing.
Patent GB-440538-A (GB)
Title: Knurling machine
IPC: B23P9/02
Filed: 1935-04-24
Abstract: 440,538. Embossing printing rollers. ZIMMER, H., 1357, South Street, Varnsdorf, Czecho Slovakia. April 24, 1935, No. 12392. Convention date, Aug. 27, 1934. [Class 83 (iv)] Rolling.-In impressing a design on a copper roller 5 for printing textiles by rolling or oscillating (adjustably) its surface against a die roll 4, the roll 4 is driven positively from the pattern roller 5, through gearing 71 and a splined shaft 69, on which the roll is mounted. The roll 5 is coupled to a clutch 6 which is oscillated by pairs of top and bottom rods 14, and lever 15, Fig. II, from a crank disc 10 so that variation of the central pivot point 17 of the lever 15 by moving the fork lever 18 about its pivot 34<1> by the handle 39<1> of the rock-shaft 19, varies the angle of oscillation of the roller 5. There are three positions of this lever 18, viz. the slide carrying the pivot 17 can move between adjustable stops 21, or between stops 31<1>, 31<1> when lowered, or the pivot 17 rests in a recess in the lever 18 to give simple pivoting without initial lost motion between stops. To start the machine, the handle 45<1>, Fig. II, is rocked to rotate the pin 46<1>, Fig. III, which rocks the bush 27 connected by gearing to the switch 28 of the actuating motor coupled to clutch 6. To stop the roller at the same point so as to re-start the pattern accurately, the cam 22 on the crank disc 10 operates a lever 23, raises a pull rod 24 to rock-shaft 26 and so to disengage the clutch as in Fig. III. When the handle 451 pushes the rod 24 from the pin 571, Figs. II and III, the pin 461 is free to rotate the bush 27 and so close the switch 28 to start the operation, but after a suitable number of oscillations, the handle 45<1> may be moved to engage 24 with pin 57<1> to stop the machine. Stoppage does not take place until the pin 46<1> now moved by declutching pedal 441, Fig. I, to the end of the sleeve in slot 58<1>, so that it overtakes its lost motion therein and then operates the sleeve and stop switch 28. The die roll 4 is lifted or lowered on to the work by mechanism shown in Fig. V in which for lifting, a lever handle is moved from 52 to 52a, actuating a reversing switch 53 of a motor 67<1>, operating the worm wheel 70<1>, on the shaft of which is an eccentric roller 45 which tilts the weighted lever 9 about its pivot 9<1>, and so lifts the roll 4 about its pivot 6<1>, the upper and lower positions being fixed by stops 44 which are coupled by lever 54 to the motor switch 53. The lever 52 operating the eccentric 63 gives fine adjustment by moving the eccentric 63 and its rod 48 to pivot the plate 46, and so swings the eccentric 45 with the plate 46 about the pivot 47 whereby the eccentric 45 varies its lifting or lowering of the lever 9 about its pivot 9<1> so giving fine adjustment to the roll 4.
Patent GB-939159-A (GB)
Title: Improvements in high frequency loudspeakers
IPC: H04R9/06
Filed: 1960-04-07
Abstract: 939,159. Loud-speakers; diaphragms. A.R. Inc. April 7, 1960 [May 1, 1959], No. 12453/60. Class 40 (4). In a moving coil loud-speaker for high frequency reproduction, the coil 17, to which a dome shaped diaphragm 16 is attached, is suspended in the air gap 18 of the magnet structure by elastic material adhesively secured to the coil and to the structure. Spaced notches 21 in the rim 12a of a top plate 12 are filled with pieces 22 of elastic foam material. The material may be initially uncured and adhesion is effected by heating the material to about 300 F. when it foams and adheres to the coil 17 and top plate 12; for pre-cured material a cement may be used as the adhesive. The pieces of elastic material 22 may be dispensed with (Fig. 3, not shown) and the air gap filled completely with a highly elastic material e.g. butyl rubber, or butyl rubber 27 (Fig. 4) may be used to supplement the pieces of elastic material 22. Pads 23, 24 of sound absorbent material e.g. glass wool, may fill the spaces inside the magnet structure. The diaphragm 16 may be made of two layers of cloth bonded together with their weaves at 45 degrees to one another. Dimensions of, and some results obtained with, the loud-speaker are given in the Specification.
Patent GB-1512167-A (GB)
Title: Animal cages
IPC: A01K1/06
Filed: 1977-02-22
Abstract: 1512167 Cages ALL - TYPE - TOOLS (WOOLWICH) Ltd 22 Feb 1977 [29 March 1976] 12457/76 Heading AIM A cage, particularly for primates, has a wall 8 movable towards a cage door 6 to facilitate capture of an animal in the cage, the wall 8 having means to prevent it twisting due to an animal resisting movement. The wall 8 is carried by rollers 9 running in channels 10 on the side walls and is pulled forwardly by a member 18 extending through the front of the cage beneath the door. The pulling member 18 is attached to the bottom right hand corner of the wall 8. To resist twisting a lazy tongs arrangement 11 is provided at each side of the wall 8, the lazy tongs being interconnected by horizontal struts extending between the pivots 16, 17.
Patent GB-833578-A (GB)
Title: Polymerisation of ethylenically unsaturated compounds
Inventor: MACMILLAN RICHARD BUTLER
IPC: C08F4/12
Filed: 1957-04-17
Abstract: A polymerization catalyst comprises (1) one or more organo-compounds of a non-transition metal of Periodic Groups I-III with (2) a lead compound which is either inorganic, or an organic acid salt. Component (1) may be Li and Na alkyls and aryls (e.g. Li n-C4H9, Na n-C5H11, NaC6H5); Zn, Mg and Al alkyls (e.g. Zn(n-C4H9)2, Mg(n-C4H9)2 and Al(C2H5)3); compounds containing two non - transition metals such as MAlR4, MZnR3 and MgZnR4, wherein M is an alkali metal and R is alkyl; and compounds of formula R1nM1Xm, wherein m+n equals the valency of the metal M1, R1 being monovalent alkyl, aryl or alkyl-aryl and X is H or halogen. Component (2) is preferably PbO2, PbCrO4 or Pb(OCOCH3)4.ALSO:Monomers, being those which polymerize by a free radical mechanism, are polymerized by use of a catalyst comprising (1) one or more organo-compounds of a Group I-III non-transition metal, particularly Al(C2H5)3, Li-n-B or Zn(n-Bu)2 and (2) a Pb compound, preferably the dioxide chromate or tetra-acetate. The monomers specified are ethylene, styrene, alkyl and halogenated styrenes; vinyl and vinylidene chlorides and fluorides; CF2=CFX wherein X is Cl, F or H; acrylic nitrile, esters and amides, or a -Cl or methyl derivatives thereof; N-vinylcarbazole and 2-vinylpyridine; butadiene, isoprene and chloroprene; and vinyl acetate.  In examples, Al(C2H5)3 is introduced as a methylcyclohexane solution; monomers used are ethylene (at 100 or 1000 atms.), styrene, vinyl acetate, methyl acrylate and methyl methacrylate; materials used to isolate the polymers are HCl (aqueous or alcoholic), water, steam, ethanol, xylene, acetone, methanol, toluene, chloroform and alcoholic KOH. Optional reaction conditions are: (a) use of an inert solvent medium such as petroleum ether and alicyclic and aromatic hydrocarbons; (b) use of chain transfer agents and polymer-soluble antioxidants.
Patent GB-201644-A (GB)
Title: Improvements in and relating to sculling machines
IPC: A63B69/06
Filed: 1922-05-03
Abstract: 201,644. Dental Manufacturing Co., Ltd., and Phillips. H. May 3, 1922. Dash-pots.-A dash-pot for providing a constant resistance throughout the pulling stroke of a rowing machine comprises a cylinder 11 secured to the frame 1, provided with a hollow piston-rod 12, which is anchored to a bracket 13 on the base 10. A sleeve-like piston 15 is mounted on the piston-rod 12 and is closed by a sliding plug 16, which closes during the pulling stroke and opens on the return stroke to allow oil which has passed to the back of the piston to escape by the ports 17. A rod 18 passes through the piston-rod 12 and is provided with a passage 21 into which oil passes from the cylinder 11 bv the ports 22 and escapes by the ports 23, 24. This escape opening is regulated by turning the rod 18, the movement being limited by the pin 25 and slot 26. Buffersprings are provided at each end of the oil cylinder and the plug 16 is closed by a light spring 20. According to the Provisional Specification, the plug 16 may be tapered externally and mounted on a hollow rod provided with a T-end fitting a recess in the cylinder, so that it can be screwed into a recess in the hollow piston-rod to open or close an oil-passage.
Patent GB-1038320-A (GB)
Title: Apparatus for growing and watering crops on sea areas
IPC: A01G9/00
Filed: 1965-03-25
Abstract: 1,038,320. Vessels for agricultural purposes. A. P. PEDRICK. March 25,1965, No.12595/65. Heading B7A. [Also in Divisions A1 and B1] Crops are grown on hexagonal fields carried by a buoyant hose whereby they can float on the sea. A number of fields are coupled together to form a farm which is towed out to sea by a craft which can be controlled remotely by radio for guidance purposes within a limited area. The fields support means for distilling sea water (see Division B1).
Patent GB-993539-A (GB)
Title: Non-woven textile fabric and method for producing same
IPC: D04H1/54
Filed: 1963-03-29
Abstract: 993,539. Laminates. MONSANTO CO. March 29, 1963 [April 4, 1962 (3)], No. 12663/63. Drawings to Specification. Heading B5N. [Also in Divisions A4 and D1] Articles in the form of a non-woven dense fibrous product having filamentary material distributed in random array or an open-mesh fabric having a first group of spaced strands placed across a second group of spaced strands are made by bonding filaments of nylon by thermo-chemical treatment with a multihydroxybenzene' compound, e.g. resorcinol, pyrocatechol, hydroquinone or pyrogallol. In specific embodiments a carded batt of nylon fibres is cross-lapped, and the multi-hydroxybenzene compound is applied before, during or after formation of the batt, which is then heated and pressed, or two or more groups of spacedapart parallel nylon yarns are laid at an angle to one another to form a reticulated non-woven structure, which is then bonded with the multihydroxybenzene compound. The filaments used may have a round, multilobal or multifaceted cross-section.
Patent GB-195292-A (GB)
Title: Massaging apparatus
IPC: A61H15/00
Filed: 1922-05-05
Abstract: 195,292. K³hn, R. May 5, 1922. Massage and vibratory treatment.-Relates to motor-driven rotary appliances of the type wherein a rigid shaft carrying a number of eccentric blocks is arranged to be passed over the body. The rotating shaft n may be! carried by a yoke c, Fig. 1, fitted with a handle, or it may have two separate handles t, Fig. 5, pivotally connected to collars g<1> in which the shaft rotates; in both cases springs v<1> are interposed between the shaft and the handle or handles. In the form shown in Fig. 1, the handle is detached and the appliance is mounted on a frame composed of a pair of rods e sliding telescopically in sockets d which carry a handle r and are pivoted to a bracket o so as to be capable of both vertical and horizontal movement. The drive is provided by a motor a and flexible shaft b.
Patent GB-1241787-A (GB)
Title: Flameproofed crystalline copolymers of propylene and ethylene
IPC: C08K5/3477
Filed: 1970-03-17
Abstract: 1,241,787. Flame-proof propylene copolymer compositions. HERCULES Inc. 17 March, 1970 [19 March, 1969], No. 12698/70. Heading C3P. Compositions comprise (1) a crystalline copolymer of propylene containing 7 to 25 weight per cent of ethylene and having a melt flow rate of less than 3, (2) a chlorinated flame-proofing compound containing at least 50 weight per cent of chlorine in amount to provide 11 to 16 weight per cent of chlorine in the composition, and (3) antimony oxide in amount of 10 to 25 weight per cent of the copolymer, the composition having a melt flow rate no higher than 2À2, a density no higher than 1.16 g./c.c. and a deflection temperature at least as high as the copolymer. Many suitable chlorinated compounds are listed and examples describe compositions comprising propylene/ethylene copolymers, antimony oxide and adducts of 2 moles of hexachlorocyclopentadiene with cyclo-octadiene, 3 moles of hexachlorocyclopentadiene with triacrylyl triazine and of 1 mole of hexachlorocyclopentadiene with tetrahydrophthalic anhydride.