baber/WOPTO huggingface dataset:
Patent GB-549996-A (GB)
Title: Improvements in or relating to devices for oscillographic electrical or mechanical processes
IPC: G01R1/30
Filed: 1941-06-14
Abstract: 549,996. Electric measuring systems. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). June 14, 1941, No. 7576. Addition to 515,027. Drawings to Specification. [Class 40 (i)] [Also in Group XXXVI] The subject-matter of the present Specification is substantially the same as that described in Specification 614,748.
Patent GB-697607-A (GB)
Title: Improvements in and relating to wheels
IPC: B60B25/20
Filed: 1950-03-28
Abstract: 697,607. Vehicle wheels. NOWAK, J. March 28, 1950 [May 23, 1949], No. 7770/50. Class 144 (ii). A wheel has an axially removable tyre-bead retaining ring 3 held in position on the rim 1 by a plurality of separate shouldered pins 4 inserted in radial holes in the rim with their shoulders abutting the outer face of the rim and forming stops preventing outward movement of the ring. The bead-retaining ring is of dish-like formation to overhang the pins 4 and thereby prevent inadvertent escape thereof from their holes. The other bead-retaining ring is prevented from outward axial displacement by a radially outward flange on the rim 1.
Patent GB-168564-A (GB)
Title: Improvements in and relating to driving and reversing gear
IPC: F16H3/60
Filed: 1921-03-12
Abstract: 168,564. Ferguson, W. March 12, 1921. Reversing gearing.-Interengaging planet gears j, j<1>, upon spindles i are carried in a member C having two clutch cones integral with connecting- webs c. The member C forms a bearing for aligned driving and driven shafts A, B. In forward driving, the member C engages a clutch member D secured to the shaft A, the gearing turning solid. In reversed driving, the member C engages a fixed cone E upon a casing F. Operation is effected by an eccentric m upon a spindle k actuated by a hand lever l. To lock the lever l, the handle part l<2> is adapted to be screwed against a fixed quadrant r, which passes through a slot in the socket or nut part l<1> of the lever. The invention is applicable to motor launches, yachts, &c.
Patent GB-1025594-A (GB)
Title: Improvements in or relating to unlockable rear wheel brakes
IPC: B60T8/26
Filed: 1964-02-25
Abstract: 1,025,594. Hydraulic brakes; valves. SOC. ANON. FRANCAISE DU FERODO. Feb. 25, 1964 [March 6, 1963], No. 7852/64. Headings F2F and F2V. A device for preventing locking of the rear brakes of a motor vehicle comprises a valve 17 loaded by a spring 24, interposed between an hydraulic supply at 15 and the supply to the rear brakes at 21, which is acted on by the supply circuit pressure to close against the spring 24 when the pressure exceeds the calibrated strength of the spring, there being a permanent passage 25 having a high pressure drop formed in the valve. The spring 24 is weak so that the valve closes early in the application of the brakes by a master cylinder which actuates both front and rear brakes. An additional valve 17a without the passage 25 and with a strong spring 24a may be interposed between the device and the rear wheels.
Patent GB-913576-A (GB)
Title: Zinc alloys
IPC: C22C18/04
Filed: 1960-03-04
Abstract: A zinc alloy, which is suitable for use as a spray and pressure cast alloy and has a reduced tendency to form "blue powder," is made from zinc of at least 99.99% purity and has the following composition by weight:- <TABS:0913576/II/1> The alloy must not contain more than 0.005% of the following impurities: Cd, alkali metals, alkaline earth metals, particularly Mg, As, Sb, Sn, Bi, Pb, Fe, Co, Ni, Si, P, C and/or B.  Alloys not within the scope of the invention are disclosed, as follows:- ..(a).(b).(c) .Al.20-75%.2-10%.1-4.5% .Cu.trace.0.03-3.5%.1-3.5% .Be.0-10%.0-0.0001%.0.05-0.5% .Mg.-.0.01-0.3%.- .Si.0.15-16%.-.- .Zn.balance.balance.balance alloys (b) and (c) having impurities of Fe, Pb, Cd and Sn Alloy (d) :-Al 2-20%, Cu 2-10%, Mg 0.1-10%, Ni 2%, Fe 2%, Mn 2%, Ca 1%, Be 0.01-1.2%, Zn balance.
Patent GB-996736-A (GB)
Title: Preparation of 6-azacytidine
Inventor: CHERNETSKY VLADIMIR PANTELEEVI
IPC: C07H19/12
Filed: 1964-02-25
Abstract: 6-Azacytitine is prepared by treating a 21,31,51-tri-O-acyl derivative thereof in solution in an anhydrous solvent with a metal alcoholate.
Patent GB-778574-A (GB)
Title: Improvements in centrifuges
Inventor: LYONS SANFORD CARLISLE
IPC: B04B1/20
Filed: 1956-03-13
Abstract: 778,574. Centrifugal separators. BIRD MACHINE CO. March 13, 1956, No. 7874/56. Class 23 In a separator in which solid particles separated from a liquid are moved axially along the wall to an outlet 28 at the front end of the bowl 10 by a helical blade 16 rotating at a speed differing slightly from that of the bowl, at least one convolution of the blade has at least the rear surface inclined transversely to slope outwardly and rearwardly with respect to radii from the bowl axis. The liquid particle mixture is supplied by a pipe 32 to the interior of a drum 18 on which the blade is mounted, and passes out through one or more nozzles 36 into the space between the convolutions of the blade and adjacent the ends of helical vanes 40. The vanes are mounted in the space between the convolutions of the blade and guide the finer particles to outwardly directed channels formed in the rear surface of the blade facing the outlet 31 for liquid. Fixed scrapers or pivoted baffles 70 which may be plane or curved may be fitted radially outwards of the vanes. Fig. 12 shows a separator having blades 90, which extend radially, modified according to the invention, helical blades 92, 98 being fixed to the blades 90 and the helical vanes 96 respectively.
Patent GB-932745-A (GB)
Title: Improvements in catalyst retorts
Inventor: KRUGER GERALD SINCLAIR
IPC: C21D1/76
Filed: 1961-03-03
Abstract: A retort for producing metallurgical heat treatment gas comprises an annular inlet chamber and a co-axial inner chamber containing a catalyst, e.g. a -alumina containing 6% to 8% NiO by weight, and means for effecting at least one change of direction of gas flow in the retort between the inlet chamber, where the gas is heated, and the inner chamber.  Town's gas and air in the ratio 2:1 enters at 4 and passes between cylinders 1,2, its direction being reversed by packing 7 to pass between cylinders 2,3, which both contain catalyst. A plate 8 serves to reverse the gas flow again through the cylinder 3 to an outlet 5.  The whole retort may be filled with catalyst. <FORM:0932745/III/1>
Patent GB-1359975-A (GB)
Title: Apparatus and method for measuring the oxygen demand of biological substances
IPC: G01N31/00
Filed: 1973-02-19
Abstract: 1359975 Electro-chemical analysis BERGWERKSVERBAND GmbH 19 Feb 1973 [18 Feb 1972] 7944/73 Heading G1N The oxygen demand of biological substances e.g. cells, bacteria or tissue is measured using a chamber 4 for containing the substances separated from a gas chamber 5 by a gas permeable membrane 7 and measuring the oxygen content of the gas in gas chamber 6 with electrode 6. As gas passes from the chamber 5 through the membrane 7 to satisfy the demand of the sample in the culture chamber the oxygen content of the gas in chamber 5 decreases resulting in the current from electrode 6, which may be of the Clark type, falling. When the associated pointer of recorder 5 reaches a predetermined point it closes a contact to open valves 14, 15 so that oxygen bearing gas passes through supply duct 17 into chamber 5 to replenish the oxygen used up, the valves being closed when the pointer reaches a second contact at its starting point. The process is repeated until the electrode indicates no further demand and the oxygen demand of the cells calculated by summing the amounts of oxygen absorbed as measured. The chamber 4 is inserted in a metal block 1 which is kept at a controlled temperature by a fluid in ducts 2.
Patent GB-686784-A (GB)
Title: Improvements in or relating to weather or draught excluding means for vehicle bodies
IPC: B60J10/00
Filed: 1950-03-30
Abstract: 686,784. Draught excluders. GRAVITY LADDERS, Ltd., and BOSTOCK, C. W. March 16, 1951 [March 30, 1950]. No. 7966/50. Class 20(iii) [Also in Group XXV] A draught &c. excluding strip is attached to a vehicle body or door by sheet metal clips each formed from a single strip of metal and comprising a substantially flat body part a adapted to fit against the base of the strip, and having cranked prongs b at opposite ends of one face to be passed through the base of the strip and clinched over, and on stem c projecting from the other face formed by folding a tongue which is integral with the body, the stem being of tapered outline with a neck d adjacent the body and with only one limb attached to the body. The clip is formed from a blank of T outline and the head of the T forming the body of the clip has two parallel slits in line with the sides of the stem of the T. The stem of the T together with the body portion is bent as shown to form the neck d and V-shaped' portion c, and the free end is inclined inwardly to terminate in the gap e formed by the cut away portion of the body. The free edges of the clip may be curved as at f to locate against one side of the base of the strip. The weather strip has a compressible pile g on a fabric strip h mounted on a metal base j with rolled edges k which retain the edges of the material. A thin cover strip l of stainless steel may be folded round the exposed edges of the base. The prongs b are forced through spaced holes or slots m in the base j and through the fabric hand clinched over as at n. Alternatively the prongs may be forced through the base and clinched over in a single operation, or passed through transverse slots if these exist in the base of the strip. The holes in the door or the body are spaced as the clips, and of a diameter less than the maximum transverse dimension of the stem c but slightly greater than the dimension of the neck d. The strips and clips may be supplied separately.
Patent GB-382863-A (GB)
Title: Improved diaphragm for sound reproducers
IPC: H04R9/04
Filed: 1932-03-17
Abstract: 382,863. Loud-speakers. DAY, W. J., ROGERS, W. A., of Universal Gramophone & Radio Corporation, Ltd., Ryland Road, Kentish Town, and MATTHEWS, D. E. R., 21, Bedford Row, both in London. March 17, 1932, No. 7991. [Class 40 (iv).] A moving coil loud-speaker of the type employing a relatively small diaphragm which sets up sound vibrations in an acoustic horn comprises a diaphragm A having a circumferential flange B which is adapted to be attached to a support C constructed of impregnated cloth, such as tracing cloth, and having a bent-up ring or flange portion E at its inner circumference adapted to carry the coil F which is preferably wound on both the inner and outer surfaces thereof. The inner portion of the support C is preferably slotted so as to facilitate the formation of the portion E and a second or reinforcing layer C<1> is also preferably provided. The two layers are clamped between the member G and a ring J on the magnet H.
Patent GB-739282-A (GB)
Title: Improvements in or relating to scaffold frame units for use in scaffolding construction
IPC: E04G1/14
Filed: 1953-03-24
Abstract: 739,282. Scaffolding. BURTON, J. March 19, 1954 [March 24, 1953], No. 7992/53. Class 20 (2).  A scaffold frame comprises two vertical tubes 10 connected together by a horizontal tube 14 by means of spigots 11 which pass through holes in flattened ends 15 of the tube 14 and engage inside the tubes 10, or may be integral therewith, washers 16 welded to the spigots locating the flattened ends against the ends of the tubes 10, the projecting parts of the spigots 11 being adapted to be inserted into vertical tubes of other frames and an arched or circular bracing member 27 being riveted to the members 10, 14. The spigot 11 is secured in the tube 10 by a bolt 17 which carries a clamp 18 for a ledger 26 the upper side of the ledger being level with the lower side of the tube 14 and supports put logs so that their upper sides are level with the upper side of the tube 14.
Patent GB-763441-A (GB)
Title: Improvements in or relating to power-driven machine tools
IPC: F15B7/00
Filed: 1953-03-24
Abstract: 763,441. Grinding. HOBROUGH, P. G. March 10, 1954 [March. 24, 1953], No. 7995/53. Class 60 [Also in Group XXIX] In a surface grinding machine in which the relative motion of the work table and grinding wheel is effected by an hydraulic motor 1 driven from a main pump 18, fine adjustment is provided by a hand pump 9 connected by a pipe 8 across the ends of the motor. The pump 18 supplies liquid via a flow control valve 20, a reversing and stop valve 21, and pipes 4, 7 to the motor. A relief valve 24 is provided. For fine adjustment, a stop member 21a in the -valve.21 is moved to close the pipes 4, 7 while they are full of liquid and the pump 9 is operated to move the piston 2 of the motor. In another embodiment, having no stop member 21a, the pump 9 is connected by a belt drive to the main pump so that when the pump 9 is operated the main pump will supply sufficient liquid to maintain the pipes 4 and 7 full.
Patent GB-895589-A (GB)
Title: Marker stripe
Inventor: NAGIN LEON
IPC: C09D163/02
Filed: 1960-03-07
Abstract: In a method of forming traffic marker stripes on roads &c., a mixture made of a transparent epoxy resin comprising a glycidyl ether of a polyhydric phenol, a catalyst in an amount approximately 10% by weight of the resin and a light reflecting additive, e.g. glass beads, fluorescent sand, polystyrene beads, or phosphorescent material, is spread on a cleaned, degreased part of the road surface to form the required stripe and cured in situ at a temperature greater than 32 DEG  F.  The wearing and anti-skid properties of the stripe may be improved by the addition of an abrasive, e.g. aluminium oxide, to the mixture.  Hardeners specified are: diethylene triamine, ethylene diamine, diethylamino propylamine, dimethylaminopropylamine, piperidine and pyridine.
Patent GB-216614-A (GB)
Title: An improved method and means for locking sliding window sashes
IPC: E05F11/00
Filed: 1923-03-21
Abstract: 216,614. Mills, F., and Mills, A. E. March 21, 1923. Fastenings for sliding windows; sliding bolts; locks, square-key. - The sashes of sliding windows are held in any position by spring- pressed sliding bolts 7 mounted in a casing 10 in the window frame and engaging sockets 2 in the side rails of the sashes. The bolts are released by a removable key engaging a square end 14 on a spindle 11 mounted in brackets 13, the spindle having bits 12 to engage upstanding projections 9<a> on sleeves 9 secured to the bolts.. Reference has been directed by the Comptroller to Specifications 3518/79, 6543/89, 10114/03, and 12835/13.
Patent GB-1377393-A (GB)
Title: Recording web tension control
IPC: G11B15/43
Filed: 1971-03-29
Abstract: 1377393 Tape transport/loading RCA CORPORATION 21 March 1972 [29 March 1971] 8113/71 Heading G5R In a tape transport system, a reverse torque is applied to a tape supply reel at the start of transducing movement in accordance with the number of revolutions made by the reel during tape threading/loading. In the arrangement shown, two motors 78 are activated at a switch 80 to cause two pins 72 to be moved along two guideways 74, thereby to withdraw tape 66 from a reel 60 in a cassette 64. Simultaneously, a detector 88 senses the rotations of reel 60 and despatches signals to a counter 96 via a gate 92, but when the tape is engaged with a head 68 and capstan 70, a switch 98 is closed by the pin 72, and a pulse is produced which closes gate 92 and hence stops the counter 96. When therefore a switch 110 is closed to activate the capstan 70 and take up reel drive 86, a further switch 108 is automatically closed and a converter 104 controls a reel drive 84 to supply a reverse torque to reel 60 in accordance with the count of counter 96. A further arrangement is described with reference to Fig. 1 (not shown).
Patent GB-277721-A (GB)
Title: Improvements in or relating to the manufacture of cellulose derivatives
IPC: C08B15/10
Filed: 1926-03-26
Abstract: 277,721. Dreyfus, H. March 26, 1926. Cellulose ethers.-Relates to improvements in the process of manufacturing cellulose derivatives described in Specification 166,767 according to which there is used to react on the cellulose an halogen compound of a glycol or other polyhydric alcohol; and of an analogous process in which the reagent employed is ethylene oxide or its homologues, or methylene chlorhydrins or ethylidene chlorhydrins as obtained by the action of hydrochloric acid on formaldehyde and acetaldehyde. According to the invention the quantity of water present during the substitution reaction is reduced by the addition of agents capable of binding water by chemical combination, to the proportions specified in the prior Specification, that is, to an amount not exceeding four times the weight of cellulose, cellulose conversion product or cellulose derivative taken, but preferably to an amount between nil and about one half of the weight of the cellulose; the amount of caustic alkali or other inorganic base used in the substitution reaction is at least equal to and preferably exceeds in the ratio of 3 : 1 to 19 : 1 or more the weight of the water present or added. By the use of such waterbinding agents, the alkali is more firmly seated on or united to the cellulose, and the substitution reaction may be carried out with reduced quantities, even down to theoretical quantities, of alkali and substitution reagent. Suitable water-binding agents are the oxides of alkali and alkaline earth metals, the hydrides of calcium and magnesium, alkali metals and earth alkali metals, sodamide and sodium ethylate powder. The compounds formed by the union of the water-binding agent with the water present may constitute in part or wholly the alkali or base necessary for the substitution, reaction; the hydroxides of the alkaline earth metals may be employed as the base, but with these, being weaker, the substitution reaction may be conducted at temperatures higher than those necessary with the caustic alkalies. In order better to control the temperature during the removal of the water, the water-binding agents are preferably incorporated in the presence of diluents such as benzol, toluol, carbon tetrachloride, ether, ligroin, or benzine, and the mixture is strongly cooled; the diluents may also be employed during the substitution reaction. In an example, cellulose is mixed with water and caustic soda, and subsequently calcium oxide is kneaded or mixed in preferably with cooling; the substitution reaction is performed with the addition of ethylene oxide or ethylene chlorhydrin, and is preferably performed at 0‹ C., although the temperature may be allowed to rise in the later stages of the reaction. The waterbinding agent may however be added partly or entirely during the substitution reaction, and it may be added all at once or gradually or at intervals. Specifications 164,374 and 187,639 are also referred to.
Patent GB-217977-A (GB)
Title: Improvements in trap nests for registering the laying records of poultry
IPC: A01K31/16
Filed: 1923-03-23
Abstract: 217,977. Hebditch, W. March 23, 1923. Trap nests.-A trap nest for poultry comprises a sliding door 5 that is held in the open position by projections 9 of a pivoted bent wire member 10 against which the bird pushes when entering the nest. The door is thus released and is locked in the closed position by the projections 9 passing through apertures 11 in the door. The member 10 is so formed that it can be raised to lock the door in the open position, the projections 9 passing through the lower apertures 13, and the vertical arms 6 engaging beneath a flange on the upper edge of the door. The projections 9 may enter a slot in the door when open, a central projection extending over the top of the door to lock it when closed.
Patent GB-1117499-A (GB)
Title: Motion transmitting remote control assembly
IPC: F16C1/12
Filed: 1967-02-22
Abstract: 1,117,499. Bowden mechanisms. TELEFLEX Inc. 22 Feb., 1967 [19 May, 1966], No. 8354/67. Heading F2K. In a method of making an outer member of a Bowden mechanism, irregularities are formed along a portion of a smooth outer surface of a conduit 20 of organic polymeric material and subsequently a fitting of organic polymeric material is moulded about the irregularities. In one form, shown on the left-hand side of Fig. 1, annular grooves 22 are formed in the casing 20 and a fitting 26 of organic polymeric material, preferably an acetal resin, is moulded about the casing 20 in mechanical interlocking engagement with the grooves 22. The fitting 26 includes a cap 32 and a flange 28 through which a hole 30 is provided. The grooves 22 are formed by moving members 36, 38, having semicircular grooves therein, towards each other. In a modification, irregularities are formed in the casing 20 by spikes 52 on members 46, 48 and a fitting 54 is moulded about the casing 20. In another form, irregularities (74), Fig. 8 (not shown), are formed by rollers (66), (68), and in Fig. 10 (not shown) another variation in which a helical groove (78) is cut by a rotating element (76). In a further modification, hinge-type clamp members (80), (82), Fig. 11 (not shown), are moved towards each other to form a projection (84) in the casing 20 around which a fitting of organic polymeric material is then moulded. In another modification, members (88), (90), Fig. 13 (not shown), are provided with heating elements (94) which cause the organic polymeric material of the casing 20 to move into cavities (92) to form projections on the conduit. The outer member comprises inner and outer tubular members 14, 20 of organic polymeric material such as nylon polytetrafluoroethylene, polyethylene or polypropylene between which a plurality of wires 18 are wrapped on a long lead.
Patent GB-541114-A (GB)
Title: Improvements relating to safety devices against fire for cinematographic projectors
IPC: G03B21/18
Filed: 1940-05-10
Abstract: 541,114. Kinematograph projectors. COMPAGNIE RADIO-CINEMA. May 10, 1940, No. 8493. Convention date, May 13, 1939. [Class 97 (i)] A cut-off shutter is controlled both by the film in the projector through an electromagnetic device, and by the projector mechanism through a mechanical or fluid-pressure device, so as to be removed from the beam only when both devices are operative, the control being transmitted through a pin sliding in a slot. As shown; an arm carrying a shutter 1 and a counterweight 5 is secured to a rotatable member 8, and rests on a stop 6 when the shutter intercepts the light beam. A link 7 connects the member 8, through a pin 9 and slot 10, to a lever 11 connected by pin 13, 12, respectively, with the electromagnetic and fluid-pressure devices. The armature 20 of the electromagnet 18 is carried by an arm 21 which is rotatable about a pivot 22 and is secured by an arm 24 to a link 25 connected to the pin 13. Attraction of the armature when a switch is closed by a finger resting on the film, or by a roller driven by the film, raises the shutter; the shutter falls again if the film breaks or ceases to rotate the roller. The pressure of the lubricating system of the projector, supplied to a capsule 15, overcomes the pressure of a spring 14 while the projector mechanism is operative, and raises the lever 11 to lift the shutter, the shutter movement being limited by the engagement of a plate 16 with an adjustable stop 17; failure of the lubricating pressure due to stoppage of the mechanism permits the fall of the shutter. Switches in the circuits of the electromagnets of the cut-off shutters of two projectors may be connected so that one shutter closes as the other opens, and vice-versa, to facilitate change-over.