baber/WOPTO huggingface dataset:
Patent GB-724045-A (GB)
Title: Improvements in or relating to thermostatic electric switches
Inventor: WALBRIDGE LYMAN HOWARD
IPC: H01H37/46
Filed: 1952-10-27
Abstract: 724,045. Thermal switches. FENWAL, Inc. Oct. 27, 1952, No. 26989/52. Class 38 (5). A thermostatic switch employing a pair of oppositely bowed contact-carrying leaf springs 21 and mounted so as to normally be held under compression or tension between the ends of a shell 10, the general construction being as disclosed in U.S.A. Specifications 2,090,407, 2,185,433, 2,257,990 is so constructed that abnormal excessive temperature changes do not impose harmful stresses on the switch. The springs 21 are mounted at opposite ends on heads 25, 35, head 25 being fixed to a stud 29 threaded in a sleeve 30, the latter being threaded in a head 11 secured to one end of the shell 10. The internal and external threads of the sleeve 30 are of different pitch and hence by rotating the sleeve the stud 29 is moved axially to vary,the compression on the springs 21 and thus the temperature at which the contacts 22 separate. The sleeve 30 is locked in position by tightening a screw 54 in a slotted collar 50, the screw end 55 engaging in a recess 56 in the head 11. The head 35 has a bore 40 adapted to loosely receive a post 17 fixed to the other end of the shell 10. As shown, the strips 21 have a lower thermal expansion coefficient than the 'shell 10 and are mounted under compression so that on normal temperature rises when the shell expands to permit the springs 21 to straighten and the contacts 22 to separate, the post 17 and head 35 remain in engagement. However, on abnormal expansion of the shell 10 the end of the post 17 leaves the base of the bore 40 and the springs 21 are thus not subjected to harmful stresses. The concavo-convex relation between the engaging surfaces of the post and bore ensures automatic re-alignment between the parts on subsequent cooling. According to another construction (Fig. 2, not shown) the springs 21 are bowed outwardly to be mutually concave so that normally the contacts 22 are open, the springs straightening to close the contacts on temperature rise. In another construction (not shown) the post 17 and head 35 are reversed (i.e. turned through 180 degrees) and the springs have the higher coefficient of expansion. and are normally under tension and tend to assume a bowed form. Further, the shell and springs may have the same expansion coefficient, sudden excessive heating causing expansion of the shell relatively to the. springs. A switch protected against temperature undershoot may be provided by giving the springs 21 of Fig. 1 the higher expansion coefficient.
Patent GB-769223-A (GB)
Title: Improvements in vertical shaft alternators
Inventor: WALKER JACK HOLMES
IPC: H02K19/22
Filed: 1954-09-17
Abstract: 769,223. Water turbine-driven generators. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 11, 1955 [Sept. 17, 1954], No. 27021/54. Class 35. In an alternator driven by a vertical spindle water wheel, the salient pole rotor surrounds the stator and is supported by a spider from which depends the shaft to which the water wheel is connected. As shown, the rotor 3, 4 is carried on a spider 5 supported by thrust bearing 8 and guide bearings 10, 11, while the exciter 12 may be carried on support 13, or, alternatively, so that its rotor is between bearings 10 and 11. The cooling air circuit includes coolers 17 and ducts 16, and the fanning action of the rotor may be assisted by separate or integral fans. Specification 672,001 is referred to.
Patent GB-463558-A (GB)
Title: Improvements in or relating to splash-plates and plate-racks for gas cookers
IPC: F24C15/12
Filed: 1935-10-01
Abstract: 463,558. Splash-guards and plate-racks for gas cookers. TWINAM, E. J. Oct. 1, 1935, No. 27042. [Class 126] A gas cooker splash-guard 10, carrying a plate-rack 23 collapsable flat against the guard and mounted so as to be collapsable flat against the top of the hot-plate 16, is secured in its upright position by two movable bolts 17 mounted on the splashguard and engaging in brackets 14 on the sides of the cooler, the bolts being interconnected so as to be movable simultaneously into or out of engagement. Interengaging pinions 18 engage ratchets on the bolts. Pins 28, 29 in the sides of the plate rack rest in slots 30, 31 in brackets 32 on the splash-guard. When the rack is to be lowered, it is first lifted at the front so that the pin 28 disengages from the slot 30, and is slid forward. In the collapsed position, it is held by spring detents 33 engaging in holes 34.
Patent GB-1223716-A (GB)
Title: Apparatus for detecting and indicating changes in a physical variable
IPC: G08B21/00
Filed: 1968-06-07
Abstract: 1,223,716. Temperature alarms. C. P. CLARE & CO. 7 June, 1968 [19 June, 1967], No. 27182/68. Heading G4N. Apparatus for detecting and signalling changes in a physical variable comprises a first relay 22, the operating winding 32 of which becomes energized when the monitored variable passes outside predetermined limits, the first relay having bridging contacts 26, 28 arranged so as to energize a second relay 36 or a bi-stable device each time the first relay 32 is energized and each time it is released, the second relay controlling indicating means. As described, contacts 34 are closed by a predetermined change in a monitored temperature or pressure so as to energize the winding 32 and transfer contact 30 to its lower position. Contact 30 is mercury-wetted so that contacts 26 and 28 are momentarily bridged, so as to energize winding 36 of a second relay which closes contacts 42 to operate indicator lamp 44 from a flasher 18. Winding 36 is held energized by contacts 38. When the abnormal condition is acknowledged by manual operation of push button 20, a winding 36 of the second relay is released. If the abnormal condition continues, contacts 34 remain closed so that the winding 32 remains energized hence lamp 44 is continually illuminated via contacts 28A, 28B and normally closed contacts 40. When the abnormal condition ceases, contacts 34 open releasing winding 32 so that contact 30 resumes its upper position whilst contacts 26 and 28 are momentarily bridged by mercury. This energizes winding 36 so as to close contacts 42 and reconnect lamp 44 to the flasher 18. Normal monitoring is resumed by further manual operation of the push button 20.
Patent GB-792411-A (GB)
Title: Polyhydrophenanthrene compounds
IPC: C07D317/72
Filed: 1954-10-24
Abstract: The invention comprises compounds of the formula <FORM:0792411/IV (b)/1> in which the 7-position is occupied by either a divalent group convertible to keto by acid hydrolysis or by a pair of univalent groups together convertible to a single keto group by acid hydrolysis, compounds of the formula <FORM:0792411/IV (b)/2> in which the 7-position is occupied by a univalent group convertible to keto by acid hydrolysis and the compound of the formula <FORM:0792411/IV (b)/3> Compounds of the first and second formula are obtained according to one method by the oxidation with ozone of a 1-acetaldehydo-2-methallyl - 2,4b - dimethyl - 4 - keto - 1,2,3,4,4a,4b,5,-6,7,8,10,10a - dodecahydrophenanthrene appropriately substituted in the 7-position.  The second method involves the oxidation with periodic acid of a 1-acetaldehydo - 2 - (b ,g  - dihydroxyisobutyl) - 2,4b - dimethyl - 4 - keto - 1,2,3,4,4a,4b,5,6,7,8,10,10a - dodecahydrophenanthrene appropriately substituted in the 7-position.  The compound of the third formula is obtained by acid hydrolysis of the compounds of the first and second formul .  In the first method it is preferred to effect the oxidation with ozone in a lower alkanol at about - 80 DEG  C., then to raise the temperature to 0 DEG  C. and effect decomposition of the ozonide under reductive conditions, e.g. with zinc and aqueous acetic acid. The product may be chromatographed. In an example 2,4b-dimethyl-7-ethylenedioxy-2(b ,g  - dihydroxy - isobutyl) - 1 - acetaldehydo - 4 - keto - 1,2,3,4,4a,4b,5,6,7,8,10,10a - dodecahydrophenanthrene in tetrahydrofuran and pyridine is oxidized with aqueous periodic acid to 2,4b - dimethyl - 7 - ethylenedioxy - 2 - (b  - ketopropyl) - 1 - acetaldehydo - 4 - keto - 1,2,3,4,4a,4b,5,6,7,8,10,10a - dodecahydrophenanthrene. Specifications 763,208, 792,412 and 792,413 are referred to.
Patent GB-172168-A (GB)
Title: Thread controlling mechanism for sewing machines
IPC: D05B63/00
Filed: 1920-09-27
Abstract: 172,168. Fairweather, W., (Singer Manufacturing Co.). Sept. 27, 1920. Sewing - machines, loop-stitching. - In an overedge stitching machine comprising the known eved needle, threaded looper 16, and second threaded looper or loop-spreader 18, the last - formed looperthread d loop is tightened by an additional device 26 moving in the opposite direction to the looper 16 and so that the looper-thread does not reeve upon the limbs of the needlethread loop. The device 26 is carried by a lever moving in an horizontal plane below the workplate, and is actuated by a. separate. eccentric.
Patent GB-1116236-A (GB)
Title: Crimping apparatus
IPC: D02G1/12
Filed: 1965-10-14
Abstract: In a stuffer-box crimping apparatus such as described in the parent Specification, a roller feeding yarn into the compression chamber is driven from a pulley comprising at least two steps and a drive belt which, in response to initiating movement of a feeler sensing the level of crimped yarn in the chamber, is shifted between the steps to vary the speed of the roller and/or connect and disconnect the drive thereto and thus maintain the quantity of crimped yarn in the chamber constant.  A flywheel mounted on the feed roller shaft retards the deceleration of the shaft when the drive is disconnected.  The peripheral surface of the roller (or each of a pair of rollers) has microscopic grooves and ridges extending axially thereof to form an irregularly roughened surface for improving the frictional grip of the roller on the yarn.
Patent GB-1510030-A (GB)
Title: Method and apparatus for extremely sensitive metallic vapour detection
IPC: G21H5/02
Filed: 1976-07-02
Abstract: 1510030 Detecting metallic vapour WESTINGHOUSE ELECTRIC CORP 2 July 1976 [2 July 1975] 27622/76 Headings G1A and G1B Sodium and/or potassium vapour in an atmosphere is determined by passing a stream of the atmosphere through a tritium labelled material which reacts quantitatively with sodium or potassium to release tritium and determining the tritium released. The tritium is preferably determined in an ionisation chamber after the gas has been filtered and cleaned. The organic material is of Formula XT where T is tritium and X is --OH, -OT, RCOO- or RO and R is aliphatic or aromatic but preferably is C n H 2n+1 - where n is 1 to 20. Where water is present in the atmosphere, the sodium or potassium will form its hydroxide. This is reacted with a tritium labelled organic acid at a temperature above 100C, and the tritiated water formed is cracked to tritium over a heated metal sponge. The filter is preferably of glass wool or metal mesh.
Patent GB-281617-A (GB)
Title: Tools for engraving rollers applicable for the treatment of films for use in colour photography
IPC: B44B3/06
Filed: 1927-10-18
Abstract: 281,617. Soc. du Film en Couleurs Keller-Dorian. Dec. 3, 1926, [Convention date]. Addition to 262,466. Knurling-rolls. -A tool for carrying out the method claimed in the parent Specification of engraving metal cylinders used for impressing a pattern of minute linear refracting elements on the back of photographic colour films, is characterized in that (1) the operative part of the tool is made of hard highlypolished material of the same section as the groove to be engraved, and is adapted to rub against the surface of the cylinder; and (2) the tool is so mounted on the engraving machine as to prevent lateral play. The tool may take the form of a non-rotary head 1 of hard steel, or of a stone such as diamond or sapphire, of cylindrical or round form, Figs. 1 and 4, and circular or hyperbolic in section. Or it may take the form of a small wheel which turns on its axis with sufficient friction, or is driven at such a speed that it does not merely roll on the cylinder but rubs thereon. To prevent lateral play, the eye of the tool 2, Fig. 5, must fit perfectly on the axis 3 and the tool must be pressed against the cylinder by a spring 4; or the tool may have conical points 5, Fig. 8, turning in pivots. 6 of hard steel, ruby, sapphire, &c. mounted on supports 7 adjustable in the direction of the arrows to take up play; and further, the tool mav be extended into the form of an arm 8, Fig. 8, having a point 9 working in a guide groove formed in a cylinder 10. Reference has been directed by the Comptroller to Specification 265,970, [Class 98 (ii), Photographic processes &c.].
Patent GB-994726-A (GB)
Title: Chemical process and product
IPC: B60C1/00
Filed: 1963-07-12
Abstract: A linear copolymer derived from (A) at least one diene consisting of 1,3-butadiene or isoprene and (B) at least one vinyl-substituted aromatic compound, and in which the diene and aromatic compound are randomly distributed in the copolymer and in which the diene content of the copolymer is characterized by (1) a cis-1,4 structure of at least 30% and a 1,2 structure not in excess of 12%, where the diene is butadiene or piperylene, or (2) a cis-1,4 structure of at least 70% and a 3,4 structure not in excess of 15% and substantially no 1,2 content where the diene is isoprene, is made by the following copolymerization process using a lithium-based catalyst.  During the copolymerization reaction the monomer ratio is maintained constant by incremental additions of the faster polymerizing diene monomer.  The copolymer may be telomerized by the slower polymerizing monomer by continuing the polymerization after the last incremental addition of the faster polymerizing monomer.  The process may be effected continously. The copolymer may be compounded with 40 to 200 parts by weight of carbon black, and 15 to 130 by weight of plasticizer per 100 parts by weight of copolymer.  The composition may also include natural rubber, ethylene-propylene rubber, rubbery emulsion copolymers of butadiene and styrene, rubbery copolymers of isoprene having a cis-1,4 content of at least about 90%, or rubbery polymers of butadiene having a cis-1,4 content of at least about 30% and a 1,2 content not in excess of 12%.  The vulcanized compositions are used as treads in pneumatic tyres.  The lithium-based catalyst is either metallic lithium or a lithium hydrocarbon. The Specification contains an extensive list of lithium hydrocarbons. The polymerization may be effected in bulk or in a hydrocarbon solution. Specified vinyl-aromatics are styrene, alpha-methyl styrene, beta-methyl styrene, para-methyl styrene, and 1- and 2-vinyl naphthalene. The copolymers are recovered from the polymerizate by conventional techniques, e.g. methanol plus an antioxidant.
Patent GB-247310-A (GB)
Title: Improvements in and connected with temperature control valves
IPC: G05D23/02
Filed: 1925-04-22
Abstract: 247,310. Maclaren, R. April 22, 1925. Thermostats.-A thermostatic valve for controlling the supply of gas to an oven or furnace comprises a casing A having inlet and outlet A<1>, A<2>, and a fixed valve seating B. The valve C is mounted on a sleeve D passing through the cover E and carrying a cup nut G, to which an operating knob L is secured. A pointer R and graduated dial Q are provided. A central rod F is mounted in the sleeve D and is in axial contact with rods H, I, J. An expansible sleeve S surrounds the central rods I, J, and projects into the furnace, so that a contraction of the sleeve S opens the valve C against the action of a spring M. A spring N keeps the rod F in contact with the screw O, by which the temperature setting can be adjusted and the temperature setting can also be regulated by the operating knob L. A variable by-pass K is provided. Specification 228,597, [Class 64 (ii), Heating systems &c.], is referred to.
Patent GB-218545-A (GB)
Title: Improvements in gloves
IPC: A41D19/00
Filed: 1923-11-05
Abstract: 218,545. Dicker, S. G. S., (Lock-Edge Machine Corporation). Nov. 5, 1923. Gloves; seams.-The fingers of gloves are closed by flat beams 15, 17, 18 comprising twin rows of lock-stitching b<1>, n<1> and b<2>, n<2>, Fig. 4, and one or more cover threads l<1>, l<2> held in place thereby. The seams may be formed on a post type machine, the cover threads being laid on the seam by simultaneously operating loopers, these threads crossing each other between the lock-stitch seams and being locked in position by the latter. The row of stitching b<2>, n<2> is positioned adjacent to the raw edge 25 of the outer lap of material, and may pass through it.
Patent GB-501122-A (GB)
Title: An improved method of manufacture of hat brims
IPC: A42C1/06
Filed: 1938-09-23
Abstract: 501,122. Hats. WILLS & SONS, Ltd., G., and WINSEN, W. W. Sept. 23, 1938, No. 27840. Convention date, Sept. 23, 1937. [Class 63] A hat brim of double thickness is formed by cutting a strip from a piece of brim material and positioning and blocking it over the edge and on the upper and lower surfaces of a block of the kind shown. The upper edge of the strip may be tied in a groove 10, the other edge being secured by pins at 14. When a reinforced edge is desired a groove 15 is formed at the edge of the block and the material tied therein. Grooves may be provided at other positions. The strip is cut on the bias, and the finished brim presents the appearance shown in Fig. 13, known as "handwoven exotic."
Patent GB-484877-A (GB)
Title: Improvements in or relating to elastic joints
IPC: F16D3/76
Filed: 1937-10-14
Abstract: 484,877. Universal joints. THIRIJ, L. Oct. 14, 1937, No. 27949. Convention date, Dec. 12, 1936. [Class 80 (ii)] [Also in Group XXV] An elastic joint, Fig. 1, comprises similarly shaped inner and outer members 1, 3, which may be in the form of opposed truncated cones, with two rings 4, 5 of elastic material compressed between them. The members 1, 3 may have spherical or other surfaces of revolution having the largest diameter intermediate the ends. Fig. 3 shows a coupling assembled by placing two parts 7, 8 of the outer member upon the inner member carrying the rubber rings 10, 11 and bolting them together.
Patent GB-1068414-A (GB)
Title: Apparatus for the fluoroscopy of parts of the mouth cavity
IPC: A61B6/14
Filed: 1964-07-07
Abstract: 1,068,414. Dental fluoroscopy. ÍSTERREICHISCHE STUDIENGESELLSCHAFT FR ATOMENERGIE G.m.b.H. July 7, 1964 [July 9, 1963; Dec. 20, 1963], No. 28005/64. Heading H5R. Apparatus for dental fluoroscopy includes a radio-active source and means enabling continuous observation of a part of the mouth. In one arrangement (Fig. 1) the source is mounted in a container 2, at the end of a support 5, surrounded by a sleeve 11 carrying a diaphragm 3 which has three apertures of different sizes, each of which may be aligned with an aperture in the container 2 by adjustment of the grips 15, 16, the sleeve then being locked in position. An image formed on the fluorescent screen 6 may be viewed after intensification from a screened position 10. The source holder may take a different form (Fig. 4, not shown), the source (23) being arranged on a lead mounting (26) connected to a cap (29), which closes an opening in the bottom of the casing (22) through which the source is inserted. A collimating passage (28) is provided in the shielding (24). A #-source may be used, e.g. Pm 147 or Sr 90; which can produce a bremsstrahlung and characteristic X-rays from a suitable material, e.g. lead or gold, in the form of a thin foil (27). An aluminium window (25) acts as a filter for soft X-rays. Radio-nuclide sources, e.g. Tm 170, or Pm 147, producing soft X-rays or bremsstrahlung, may be used.
Patent GB-900964-A (GB)
Title: Improvements in or relating to leads for pencils
IPC: C09D13/00
Filed: 1958-09-01
Abstract: 900,964. Pencil leads. SCHWANHAUSSER, E., and SCHWANHAUSSER, G., [trading as SCHWAN-BLEISTIFT-FABRIK, SCHWANHAUSSER & CO.]. Sept. 1, 1958 [Nov. 4, 1957; May 3, 1958], No. 28017/58. Addition to 900,963. Class 146 (3). A burnt pencil lead composition as claimed in the parent Specification comprises one or more natural resins in chemical combination and/or in admixture with the polar fatty substance. The fatty substance may be any of those mentioned in the parent Specification and the resins include resin acids, e.g. abietic acid, and resin alcohols which may be combined with the fatty substances to form esters and/or ethers therewith. The effect of the addition of the resin is to increase cohesion of the lead and increase its adhesion to smooth surfaces. The following example is given :- 85 parts by weight of graphite and 15 parts of clay are formed into rods, fired and impregnated with a melt of 50 parts of colophony and 50 parts of a polydiol having a molecular weight of about 1000 and a wax-like consistency, or a resin acid ester thereof.
Patent GB-1189005-A (GB)
Title: Boxfile
Inventor: SPRINGER ALAN
IPC: B42F7/14
Filed: 1967-06-19
Abstract: 1,189,005. Filing papers. A. SPRINGER. 19 June, 1967, No. 28125/67. Heading B6E. A box file formed from a single flat blank comprises six panels F, H, I, J, K, L which fold and slot together to form three sides of an inner box. It also has a bottom panel G and an open top. The fourth side of this inner box is completed by panel C that is attached to panel G. Panel C is one of five additional taller upright panels A, B, C, D, E that fold to form four sides of the outer box which encloses the smaller inner box.
Patent GB-1305320-A (GB)
IPC: A01N25/26
Filed: 1971-06-16
Abstract: 1305320 Granular pesticides STAUFFER CHEMICAL CO 16 June 1971 [23 July 1970] 28168/71 Heading A5E A process for manufacturing granular pesticides products comprises the steps of (a) moving a bed of high density relatively non- absorbent particles having a size between 5 and 60 mesh, (b) dampening the particles with a solution containing an active pesticide, (c) drying the damp particles with a highly absorbent finely divided solid material, and (d) repeating steps (b) and (c) as desired to build up a crust containing active pesticide material; or altenatively (i) carrying out steps (a) above, (ii) dampening the particles with a solvent, (iii) drying the damp particles with a finely divided solid pesticide, and (iv) repeating steps (ii) and (iii) as required to build up a crust.