baber/WOPTO huggingface dataset:
Patent GB-597760-A (GB)
Title: Improvements in dental flasks
Filed: 1945-08-25
Abstract: 597,760. Dental flasks. ALM, B. H. Aug. 25, 1945, No. 21856. [Class 87 (ii)] A dental flask of the type comprising lower and upper sections 1, 2 assembled together by tongues 6 engaging in grooves 5, has the section 2 divided into two halves 2', 2" along a plane through the tongues 6 so that when the flask is assembled with the tongues 6 in the grooves 5 the two halves 2,<1> 2<11> are held together. A lid 4 and a bottom 3 are held in position on the flask by projections 7, 8, respectively. To carry the flask or to hold the halves 2', 2<11> together when the upper section is being applied to the lower section a two-pronged fork is used, the prongs of which engage in grooves 9 in the sides of the flask.
Patent GB-1329177-A (GB)
Title: Plate heat exchangers
IPC: F28F3/08
Filed: 1971-04-19
Abstract: 1329177 Plate heat exchangers FARBWERKE HOECHST AG 19 April 1971 [17 Feb 1970] 21981/71 Heading F4S In a plate heat exchanger comprising separating sheets 3 disposed between adjacent grooved plates 1, 2, heat exchange between two media flowing through the grooves takes place through the separating sheets 3. The plates 1, 2 and the sheets 3 are made of polytetrafluoroethylene. The heat exchange media are led into and removed from the respective arrays of grooves in the plates via socket connections (9, 10, Fig. 4) provided in end plates 4, 8 or the heat exchanger stack. The plates 4 are of steel; the plates 8, which are of polytetrafluoroethylene, have distribution channels therein. A series arrangement, as shown, or parallel arrangement (see Fig. 2) may be used to distribute the media to the respective arrays of grooves in the stack.
Patent GB-1306893-A (GB)
Title: Marine autopilot systems
IPC: G05D1/02
Filed: 1971-04-19
Abstract: 1306893 Automatic control of steering TOKYO KEIKI KK 19 April 1971 [24 Feb 1970] 22057/71 Heading G3R A marine autopilot system in which derivative, proportional and integral actions are carried out and a filter effect is performed has means for changing together an integral time constant and at least either one of a derivative time constant and a filtering time constant in a certain relation to each other, thereby to retain the steering loop stable. Fig.1 shows a conventional system in which a heading signal Ï from a ship compass 13 compared in an adder 1 a set course signal Ï i  to produce an error signal Ï e  if a deviation exists. The error signal Ï e  is supplied to an integral circuit 2, a proportional circuit 3 and a series derivative circuit 4 and filter circuit 5. The output of these circuits are added in an adder 6. The signal # 0  from the adder 6 is supplied to a power unit 10 through an adder 8, an amplifier 9 and a relay operating element 7 to drive the power unit 10 which controls a rudder 14 through a steering gear 11. A feedback signal generator 15 controlled by the power unit 10 provides a signal proportional to rudder angle and this is compared with the signal # 0  in the adder 8 to provide a difference signal to the amplifier 9. Fig. 5 shows derivative and integral circuits 4 and 2 which include operational amplifiers A and which have time constant control capacitors C 2 , C 4  gauged to ensure that they are changed together. In Fig.6, (not shown), resistors in the integrator and derivative circuits are gauged to change together. Fig.7 shows the integrator circuit 2 and a "block" 4 having proportional, derivative and filtering functions and the potentiometers VR1, VR2, VR3 and VR4 are gauged to change the four time constants together.
Patent GB-1239914-A (GB)
Title: Grid flooring for farms
Inventor: TAYLOR JOHN HARDING
IPC: A01K1/015
Filed: 1967-05-12
Abstract: 1,239,914. Metallic fabric. JOHN H. TAYLOR Ltd. 8 Aug., 1968 [12 May, 1967], No. 22140/67. Heading D1K. [Also in Division E1] A rectangular floor drainage grid for cattle yards or buildings comprises a series of equallength parallel T-bars presenting flat upper surfaces, the aligned ends of the T-bars being connected in spaced relationship by two cross bars which are slightly raised to form antislip projections.
Patent GB-797541-A (GB)
Title: Method of and apparatus for steaming textile fabrics
IPC: D06C7/00
Filed: 1955-08-02
Abstract: The three-phase heat exchange roller units of the parent Specification operating in an air-free steam chamber, are now used in conjunction with hollow heated rollers 14 which speed up and complete the chemical reduction process while still maintaining the saturated steam within the chamber as previously described. <PICT:0797541/IV (b)/1> The rollers 14 are supplied through their bearings with heated fluid so that their exterior surfaces are heated to about 240 DEG  F. Material passing around the heat exchangers 12 and the heated rollers 14 is thus subjected to alternate moistening by condensate on the cooled exchangers 12 and heating by the rollers 14.
Patent GB-1172064-A (GB)
Title: Improvements relating to the Elevators of Root Vegetable and like Harvesters or Diggers, or other Agricultural Implements
IPC: A01D17/10
Filed: 1968-05-10
Abstract: 1,172,064. Root crop harvesters. RALPH McKAY Ltd. 10 May, 1968 [11 May, 1967], No. 22253/68. Heading AlF. [Also in Division B8] The harvester comprises a share S2 and an endless chain elevator comprising a number of uniformly spaced transverse cleats 5 each pivotally mounted upon a transverse link 7 of the endless chains for relative angular movement, a counterweight 13 being connected through the pivot axis to each cleat and so disposed that, in the load carrying position constituting the upper flight, the cleats are maintained upraised for load engagement. On turnover of the upper flight at the discharge end of the elevator, each cleat and counterweight describe in succession a relative angular movement about the axis to assume and be retained in a non-projecting relation against the return flight of the elevator, responsive to the counterweight 13.
Patent GB-726504-A (GB)
Title: Improvements in or relating to electric heating elements
Inventor: MESSUM HAROLD FRANK
IPC: H05B3/06
Filed: 1953-08-13
Abstract: 726,504. Sheathed resistance heaters. WILSON & CO., Ltd., H. Aug. 13, 1953, No. 22318/53. Class 39 (3). A heater comprising a wire 11 or resistor embedded in insulating powder e.g. magnesium oxide in a metal tube 10 has its end apertures sealed by a plug or cap consisting of a fused or sintered non-porous ceramic insulant 15 through which the current conductor passes, a gas tight and water tight seal being provided at the joint between the tube 10 and plug 15, and between the outer end of the plug and the conductor wire. The plug 15 is preferably of alumina and has bonded thereto by a fused mixture of glass and powdered ceramic metal ferrules 13, 16, the ferrules being brazed to the steel tube 10 and to the conductor 11 respectively. A terminal is attached to the neck 16a of each ferrule 16. Specification 539,244, [Group XXXVI], is referred to.
Patent GB-442091-A (GB)
Title: Improvements in and relating to collapsable and extensible linkages
IPC: E01D15/12
Filed: 1934-07-31
Abstract: 442,091. Aircraft wings; framework. KRUMMER, A., 38, Schoneberger Ufer, Berlin. July 31, 1934, No. 22352. [Class 4] [See also Groups XXIV, X, XIV, XX, and XXX] A collapsable and extensible linkage element for separating or bringing together two bodies A, B, applicable as an adjustment for the length and width of aeroplane wings, comprises at least three links a<1>, a<2>, a<3> connecting the bodies as shown, with the same number of diverging links b<1>, b<3>, b<2> connected at one end to the same points l, n, m on body A and at the other end to points s, t, r on a relatively rotatable auxiliary member C. The structure better resists transverse stresses if made of pyramid form by reducing the size of either body A or body B. If the points s, t, r are moved in a circular path, body A remains parallel with body B. If one or more of the points l, m, n on body A are movable radially or concentrically, or intermediately, the relative movement of the bodies A, B is at an angle. If a second body (say A') with links is attached on the other side of body B, the bodies A, A<1> move without relative rotation as is required in a lifting-jack. If a number of such double units be arranged with body A of one unit connected to body A<1> of the next unit, rotation of one of the bodies A, A<1> relatively to the auxiliary members rotates all the others.
Patent GB-803179-A (GB)
Title: Process for the preparation of hypophosphites
IPC: C01B25/06
Filed: 1956-07-19
Abstract: Alkali metal hypophosphites are prepared by warming an emulsion of phosphorus in an aqueous alkali-metal hydroxide solution to a temperature not exceeding 60 DEG  C., and not below 45 DEG  C., especially between 45 DEG  and 50 DEG  C.  The solution is then heated to 85 DEG  C., at which temperature phosphine polymers are converted to gaseous phosphine, which is expelled from the solution. The resulting solution contains both hypophosphite and phosphite, which latter may be removed by precipitation as calcium phosphite. In the preferred embodiment, the relative amounts of hypophosphite and phosphite produced can be foreseen and calcium hydroxide is added to as the starting solution in amount corresponding to the phosphite ion formed which is thus precipitated as the calcium phosphite, while only sodium hypophosphite remains in solution. It is advantageous to add a trace (0.1-2 per cent) of an aliphatic acid, such as oxalic, succinic, or tartaric acid, to the hypophosphite solution in order to stabilize the solution and render subsequent concentration easier.
Patent GB-295282-A (GB)
Title: Improvements relating to devices for applying paste
IPC: B43M11/06
Filed: 1928-08-03
Abstract: 295,282. Rendel, A. Aug. 8, 1927, [Conveniion date]. Piston apparatus for discharging receptacles. -A paste reservoir 3 and a disc 5 for applying the paste are combined. The reservoir and its cylindrical cover 1 are stamped out of sheet metal and may be screwed to give an even supply of paste. A plug 2 may be unscrewed and its space occupied e.g. by a cleaning rag for travelling. A protective cap 7 is provided.
Patent GB-1155452-A (GB)
Title: Device for producing a Tangled Fleece by means of a Carding Machine
Inventor: FORSTER WILLY
IPC: D01G25/00
Filed: 1966-05-20
Abstract: 1,155,452. Carding engines. ATLAS-MAK. MASCHINENBAU G.m.b.H. 20 May, 1966, No. 22562/66. Heading D1N. To form a web with increased transverse strength one or more fibre entangling rollers 2 are arranged above the doffer 1. A common fibre entangling roller may be provided to act on cylinder 4 and doffer 1, see Fig. 2 not shown. The diameter of fleece forming roller 3 is less than that of the doffer. The directions of rotation of the rotary components are as shown in the Fig.
Patent GB-387707-A (GB)
Title: Improvements in and relating to tobacco pipes
IPC: A24F1/00
Filed: 1931-08-11
Abstract: 387,707. Tobacco pipes &c. WEBB, H. J. H., Lower Lodge, Cleeve Hill, Bath. Aug. 11, 1931, No. 22680. [Class 130.] A tobacco pipe or cigar or cigarette holder is provided with an annular passage 5 in the top edge of the bowl connected by a duct G to the bottom of the bowl and by another duct 7 to a cavity 8 in the stem, a cap 1, Fig. 3, being screwed down on to the top of the bowl.
Patent GB-480112-A (GB)
Title: Improvements in calculating mechanism for measuring instruments
IPC: G06G3/08
Filed: 1936-08-18
Abstract: 480,112. Integrating-apparatus; sextants. EVERITT, P. F., HUGHES, A..J., and HUGHES & SON, Ltd., H. Aug. 18, 1936, No. 22739. [Class 106 (iv)] [Also in Group XX] A counter is driven from a measuring- instrument and is arranged to show directly the average of a predetermined number of measurements. Thus, if six is the predetermined number of measurements to be made, the counter may be driven from the instrument through gearing having reduction ratio of 1 : 6, or the counter may be driven synchronously with the instrument but be graduated to show readings 1/6 of the normal values. The invention is .shown applied to a sextant comprising a frame 1, handles 2 rotatable about an axis 3 into the dotted position, Fig. 2, an auxiliary telescope 6, shades 8, and a forehead shield 10 for use in stellar observations. The mirror is adjusted by a lever engaging a spiral groove in a drum carrying an evenly-divided scale 14 and having a boss 16 to which is attached a knurled wheel 15 for coarse adjustments. A worm wheel 17 is also mounted on the boss 16 and can be clamped thereto by any one of several screws 18. The worm wheel 17 is driven for fine adjustments by a worm 27 on a shaft 28 connected by bevel gearing 25 to a knurled wheel 24. The bevel gearing 25 also drives a pinion 29, Fig. 5, connected to the counter through gearing giving the required reduction.. The counter wheels are connected by transfer mechanism comprising pins on the wheels engaging pinions 40 on a shaft 41 carried in arms 46 and pressed into operative position by blade springs 48, the shaft and pinions being moved aside by the transfer pins when the counter is zeroized by knob 49. In operation, a rough reading is taken and the scale 14 then turned back to any convenient scale division, an adjustable stop 20 on the frame being set to engage a pin 19 on the wheel 15 at this position. The screw 18 is engaged and the scale 14 is then moved forward to an accurate reading by the fine adjustment knob 24, this movement being transmitted to the counter. The screw 18 is then disengaged, the scale 14 returned to the position determined by the stop 20 and the operation repeated the predetermined number of times. In a modification, Fig. 6, the instrument 53 is set by a micrometer screw 50, 55 driving the counter directly through a clutch 56. The clutch is then disengaged and the instrument returned to the initial position, the clutch re-engaged and another reading is taken. This process is repeated the predetermined number of times, the counter being graduated to indicate directly the predetermined fraction, i.e. the average of the sum of the readings.
Patent GB-295390-A (GB)
Title: A method of increasing the elasticity limit or yield point of tough or plastic metals
IPC: C21D8/00
Filed: 1928-08-07
Abstract: 295,390. GerÚkgyßrt¾, G. Aug. 11, 1927, [Convention date]. Physical or molecular structure altering by mechanical treatment. - Rods, tubes, gun barrels, shafts for aeroplanes and automobiles, particularly of wrought iron, have the elastic limit increased by applying torsional stress to cause permanent set and then removing the stress. The metal may be heated to a moderate temperature during twisting and may be further worked after treatment. Specification 4320/87, [Class 72, Iron &c.], is referred to.
Patent GB-354535-A (GB)
Title: Milk or cream preparation
IPC: A23C9/15
Filed: 1930-07-29
Abstract: A preserved milk or cream preparation for table use is obtained by separating from whole milk a cream of high fat content, adding to the cream a small amount, e.g. about 1 per cent by weight, of sodium or other alkaline caseinate, reducing the fat content of the mixture to the desired value, e.g. about 18 per cent, by addition of a sufficient quantity of milk, pasteurizing the product and finally sealing it in tins or other containers and sterilizing.  The milk added may be whole milk, or skim milk from the whole milk originally used.  To improve the flavour and prevent coagulation a small quantity of a suitable agent such as sodium citrate may be added. Pasteurization is effected by heating in bulk at 142-145 DEG  F. for about 30 minutes and may be carried out before or after the addition of the milk.  The product is homogenized at this temperature employing the usual pressures, e.g. 2500-2800 lbs. per sq. in.  The final sterilization of the canned product is effected by heating at 240-242 DEG  F.
Patent GB-441986-A (GB)
Title: Improvements in telegraphic transmitters
IPC: H04L15/08
Filed: 1935-08-14
Abstract: 441,986. Press - button retractive switches. BOTTINO, C., 36, Via XX Settembre, Genova, Italy. Aug. 14, 1935, No. 22908. [Class 38 (v)] [See also Group XL] A telegraph transmitter comprises three keys for dots, dashes and spaces respectively arranged to give the correct duration of signals and spaces when used at a uniform rate. As shown, spring-returned plungers 3, 4, Fig. 1, for dots and dashes respectively are constructed as follows. The plunger 3 contacts in its lowermost position with a flat contact member 14, while the plunger 4 has a pointed tip 17, Fig. 4, which enters a split tube 18 held closed by a coiled spring 34, contact being made until the plunger leaves the tube on the return stroke. The returning springs may be adjustable.
Patent GB-149696-A (GB)
Title: Improved type-writing machine
IPC: B41J1/32
Filed: 1920-08-03
Abstract: 149,696. Hoffmann, F. Aug. 1, 1919. Index type-wheel machines; pocket and like portable machines for writing on books and like objects.-A small type-wheel machine of the kind designed to travel over the paper is provided with a bail f, external to the casing c for effecting the rotary and sliding movements of the type-wheel a for character selection and impression respectively. The bail f is mounted on the projecting ends of the shaft b carrying the type-wheel, and is connected with the shaft b by gearing h, h<1>, the outer gear h having pin-and-slot connexion with the bail to allow for the impression movement. A handle g mounted to slide on the bail f is provided with a pointer g' reading over an index plate on the casing. Springs d under the shaft b return the type-wheel and bail after depression. A second bail q, Fig. 3, is provided as a handle for positioning the machine on the paper. A support r is attached to the bail g for guiding the machine in straight lines over the paper; this support is preferably transparent to expose the writing. The casing is provided with a sliding cover t for closing the opening at the bottom when the machine is not in use. Alining for impression.-The pointer g<1>, Fig. 1, enters a recess in the index plate opposite the selected letter when the bail is depressed for impression. Case-shift mechanism.-The type-wheel a, Fig. 1, is keyed to the shaft b and can be slid axially for case-shift adjustment; the movements are effected by means of a cord m attached to the sliding handle g on the bail f, the shaft b and the bail f being hollow to accommodate the cord. Letter-spacing mechanism; ink-ribbon mechanism.-A drum n, Fig. 1, formed of end pieces n' connected by cross-wires o, surrounds the typewheel a within the casing c, and is rotated by ratchet mechanism u in the upward movement of the bail f. To ensure full depression of the pawl when the bail f is in inclined positions, stays bearing on the pawl support are provided on the handle, or a loop curved concentric with the shaft, as shown in dotted lines in Fig. 3, may be attached to the handle f. The end pieces of the drum bear on the paper for traversing the machine for letter-spacing. The curved wires support a ring k of ink-ribbon. The casing is provided with hinged doors s, Fig. 3, for access to the ink-ribbon.
Patent GB-738635-A (GB)
Title: Hydrogenation of a í¸-steroid
IPC: C07J75/00
Filed: 1952-06-11
Abstract: The invention comprises normal and allo pregnane-11-alpha-ol-3,20-dione and a process for the preparation of a mixture thereof by hydrogenating 3,20-diketo-11-alpha-hydroxy-4-pregnene with hydrogen in the presence of a palladium hydrogenation catalyst.  The hydrogenation may be effected in the presence of an organic base, e.g., triethylamine, and/or in the presence of an organic solvent, e.g. ethyl alcohol. The normal and allo isomers may be separated by solvent extraction, e.g. with petroleum ether, or by chromatographic adsorption.  A detailed example is given in which palladium-charcoal hydrogenation catalyst is used.
Patent GB-638759-A (GB)
Title: Improvements in shuttles for weaving
IPC: D03J5/00
Filed: 1947-08-19
Abstract: 638,759. Shuttles for weaving. SHIMWELL, D. W., and McOREGOR & BALFOUR, Ltd. Aug. 19, 1947, No. 22966. [Class 142 (iii)] Sponge rubber strips a inserted along the top side of a shuttle b for solid cops are compressed when a cop is being inserted, and afterwards spring out to hold the cop in place. A corrugated rubber lining c may pass round the cop inside the shuttle and be provided' with substantially triangular flaps d which rise successively as the cop shortens. As the weft is withdrawn, the corrugations in the lining serve to hold the cop endwise and prevent its disintegration, and the flaps, springing up, prevent the thread from flying out. Specification 575,305 is referred to.
Patent GB-614829-A (GB)
Title: Compositions comprising polymeric materials
IPC: C08L75/04
Filed: 1946-08-02
Abstract: In compositions of the kind set forth in the parent Specification, an aromatic tri-isocyanate or modified polyester or polyesteramide is used in place of an organic di-isocyanate modified polyester or polyester-amide.  Suitable triisocyanates are benzene 1,3,5-tri-isocyanate; toluene 2,4,6 - tri - isocyanate; ethylbenzene-2,4,6-tri-isocyanate; monochlorobenzene-2,4,6-tri - isocyanate; triphenylmethane - 4,41,411-tri - isocyanate and diphenyl - 2,4,41 - tri - iso - cyanate.  In the examples, a polyester amide from adipic acid, ethylene glycol and monoethanolamine is modified with benzene 1,3,5-tri - isocyanate or with toluene - 2,4,6 - tri - isocyanate, and in example (1) the benzene triisocyanate modified polyesteramide is mixed on heated rolls with a polyvinyl acetal known under the Registered Trade Mark "Formvar."  In example (2) the toluene tri-isocyanate modified polyester amide is mixed with "Formvar," and hexamethylolmethamine hexamethyl ether and a small proportion of 2,4-dichloro-1-naphthol and the mix stirred with ethylene dichloride to give a preparation suitable for coating fabrics (see Group VIII).  In example (3) a solution in ethylene dichloride of "Formvar" and the toluene tri-isocyanate modified polyesteramide is mixed before use as a lacquer with toluene-2,4,6-tri-isocyanate.  Specifications 580,524 and 580,526 also are referred to.
Patent GB-258615-A (GB)
Title: Process of washing or cleaning wool
IPC: D01B3/04
Filed: 1926-09-18
Abstract: 258,615. Duhamel, E. C., and Compagnie Generate des Industries Textiles. Sept. 18, 1926. Washing, processes and materials for.-Wool in flocks and fleeces, and wool-bearing skins, are first partially washed to remove mud and soluble constituents (if desired after a preliminary saturation) in a cold suint liquor which is again used, preferably after partial purification, for instance by centrifuging, for further partial washings until it becomes a concentrated suint liquor; the wools are then, after unhairing if necessary, washed with a hot detergent liquor to remove the grease. The concentrated liquor from the first (cold) washing may be stored in tanks, or used at once for the hot washing-operation proper. The partial washing may take place in an apparatus wherein the wool is acted on by a jet of liquid whilst a beater-roll removes impurities from the fibres. Wool grease may be added to the suint liquor used in the partial washing. The partial washing in the cold may be effected in several stages with counter-current circulation of the liquid. After rinsing and removal of the wool from the skin, in lieu of steeping in hot carbonate of soda, suint liquor obtained as above may be used, this liquor being subsequently passed through a degreasing centrifuge, and re-used. The wool next passes through squeeze-rolls, and unless suint liquor is used as the hot detergent the suint still remaining in the wool may be removed by spraying with water in counter-current (the resultant liquid being used in the cold partial washing). If the washing proper is effected by hot concentrated suint liquor followed by soap solution as in Specification 240,482, the rinsing liquor following the hot suint washing may be utilized for the cold partial washing operation. Concentrated suint liquors of different installations may be mixed together to maintain an even, high concentration. Specification 240,499 is also referred to.