baber/WOPTO huggingface dataset:
Patent GB-1189350-A (GB)
Title: Improvements in or relating to Thermocouple Junction Temperature Compensation
Inventor: HOTCHIN MAURICE JAMES
IPC: H01L35/30
Filed: 1967-11-17
Abstract: 1,189,350. Thermocouple arrangements. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. [17 Nov., 1967; 1 Feb., 1968], Nos. 52353/67 and 5311/68. Heading H1K. A switch used to selectively connect one of many thermocouples to an output line is immersed in an isothermal fluid contained in a thermostatically controlled bath. One or both leads from each measuring junction are joined to input terminals on the switch, both the connecting points (reference junctions) and the switch contacts being in heat exchange relationship with the fluid. In one embodiment a double-poled rotary switch is immersed in air (or other gas) in a metal walled cavity thermostatted by a water/ice mixture. The cavity is sealed by a fibreglass plug through which are led the pairs of thermocouple leads and the output pair. In a second embodiment a similar switch is immersed in a stirred and thermostatted oil-bath. The liquid flow over the switch contacts keeps them clear of particles detached from them by abrasion. The switches may be manually operated or may be driven electrically by a stepping motor. Copper output wires from the switches may feed to indicating/recording instruments, to data-handling equipment, or to further switches.
Patent GB-879373-A (GB)
Title: Improved elastomeric materials
Inventor: COULTER DAVID JAMES BRYANS
IPC: C08G18/48
Filed: 1958-02-19
Abstract: A process for the manufacture of improved elastomeric polyurethanes by heating together polyethers and polyisocyanates until the polyurethane obtained is solid at room temperatures and substantially insoluble in ethyl acetate is characterized in that the polyether has a molecular weight not less than 500, the proportion of polyisocyanate employed is such that there are between 0,5 and 1,0 isocyanate groups per hydroxyl group of the polyether, and at least one of the polyethers contains more than two hydroxyl groups and/or at least one of the polyisocyanates contains more than two isocyano groups.  The linear or branched polyethers may be those obtained by polymerization of alkylene oxides in the presence of, respectively, a glycol or a substance (e.g. glycerol, pentaerythritol or ethylene diamine) having more than two active hydrogen atoms.  The speed of reaction can be modified by p  catalysts such as triethylamine, N : N-dimethyl-benzylamine, N-methylmorpholine, bis-(2-diethylaminoethyl) adipate and N : N-dimethylcyclohexylamine or retarders such as adipic or salicyclic acid.  The mixture of ingredients can be cured at a temperature between 70 DEG  and 140 DEG C., for example, in a mould or on a substrate.  Examples describe the preparation of cured products from mixtures of (1) polytetrahydrofuran and 2 : 4 : 6-triisocyanato toluene; (2) polytetrahydrofuran and a mixture of toluylene diisocyanate and 2 : 4 : 6-triisocyanato-toluene; (3) a linear polypropylene glycol and a mixture of 2 : 4 and 2 : 6-toluylene diisocyanates and 2 : 4 : 6-triisocyanato toluene; (4) a branched polypropylene glycol with hexanetriol as the branching agent and 2 : 4- and 2 : 6-toluylene diisocyanates; (5) a mixture of linear polypropylene glycol and tetrakis-(b -hydroxyethyl) ethylene diamine and 2 : 4- and 2 : 6-toluylene diisocyanates. The products are useful for printing rollers, potting and encapsulating compositions, printers' blanket coatings, vibration dampers and shock absorbers.
Patent GB-823061-A (GB)
Title: Improvements in or relating to book jackets
IPC: B42D3/04
Filed: 1956-02-22
Abstract: 823,061. Book covers. SZEGO, P. Feb. 20, 1957 [Feb. 22, 1956], No. 5455/56. Class 16 A tubular book jacket comprises a backing sheet 12 of paper and a sheet 13 of plastic material adhesively secured in face to face relation along spaced zones 14 to form a tubular structure 17 into which a dust cover 18 or other sheets such as the covers of a book may be inserted, the marginal zones 14 being of single thicknesses of the sheets which can be bent over the edges of the dust cover 18 or other sheet. The sheet 13 is preferably transparent and the adhesive used is a heat, pressure or solvent activated adhesive, which may extend over the whole surface of the sheet 13 so as to adhere also to the dust cover 18. The book covers may be inserted into the turned over ends of the tubular structure 17 or such ends turned in over the cover. The zones 14 and the ends may be turned in over the covers, the sections 24 and 25 being cut away to facilitate this. Either sheet 12 or 13 may extend beyond the other. As shown in Fig. 9, a web 40 of adhesive coated plastic material from a web 40 of adhesive coated plastic material from web 41 and a web 43 of paper from a reel 44 are fed over a table 42 under a heated platen 45 double the width of a zone strip 14 to cause the webs to adhere along bands at distances apart corresponding to the width of the jackets, the bands then being cut in half by a guillotine 47. Dust covers 49 may be inserted transversely of the webs immediately prior to the securing. In an alternative arrangement, the webs are secured along the two edges, as by pressure rollers, the webs being guillotined to the required length.
Patent GB-1487381-A (GB)
Title: Carburetter
IPC: F02M31/12
Filed: 1975-01-29
Abstract: 1487381 Spray carburetters BRITISH LEYLAND UK Ltd 29 Jan 1975 [6 Feb 1974] 05539/74 Heading F1H A carburetter comprises a jet orifice 17 for supplying vaporable liquid fuel to an air passage 12, and heating means 26 adjacent the jet orifice and in heat exchange relationship with fluid flowing along the passage downstream of the jet orifice to vaporize the fuel droplets during engine warm-up. The heating means 26 extends across a slot 21 in the carburetter bridge 19, the slot being covered by a cover-plate 20 which divides the fuel droplets into a proportion passing through orifice 20a and a proportion passing into slot 21 by way of intimate contact with the heating means 26. The heating means 26 may be a diesel heater plug controlled by a switch or in accordance with engine liquid coolant temperature as sensed by a thermistor or thermocouple, or may be a heat pipe heated at one end by exhaust gases.
Patent GB-381828-A (GB)
Title: Improvements in or relating to the assembling of flexible couplings or joints
IPC: B25B27/28
Filed: 1932-02-25
Abstract: 381,828. Flexible-unjointed hinges. BUDD WHEEL CO., 2500, Hunting Park Avenue, Philadelphia, U.S.A.-(Assignees of Tarbox, J. P. ; c/o Budd Wheel Co., 25th Avenue, Philadelphia, U.S.A.) Feb. 25, 1932, No. 5624. Convention date, Feb. 25, 1931. [Class 65 (ii).] A resilient joint comprising inner and outer concentric metal members with a rubber sleeve interposed is assembled by placing the two metal members one inside the other and elastically distort. ing the rubber sleeve and forcing it into the annular space between the two metal members ; the metal members are placed in position at the small end of a funnel having a central guiding member, and a series of resilient sleeves is pushed in at the large end, the foremost one being forced into position between the metal joint members by pressure transmitted through the series of resilient sleeves. The apparatus for performing the assembly comprises an inverted funnel 10 with a cylindrical lower portion having half its circumference cut away to form an opening 12 ; a plunger 26 reciprocates in the cylindrical portion ; the small upper end of the funnel has an internal shoulder on which the outer joint member 30 rests. A member 21, in the form of a cone with an enlarged tip and a cylindrical shank on its base, is placed in the centre of the funnel, and the inner joint member 31 is placed over the shank of the member 21 and rests on a shoulder at the base of the coned portion. A bracket on one side of the funnel has hinged to it an abutment plate 15, and a similar bracket on the other side carries a pivoted fastening member 18, which can be swung round to hold the abutment plate down over the joint members, as shown ; the shank of the member 21 is held in the plate 15 by a cotter at the commencement of working, but this is unnecessary after production of the first joint, the member 21 being held in place by sleeves in the funnel. In operation, a rubber sleeve A is inserted through the aperture 12 above the plunger 26, which is then moved upward to force the sleeve into the position shown in the funnel, the sleeve being retained there by the enlarged tip of the member 21. The plunger is then withdrawn and a second sleeve inserted and forced up, pushing the first sleeve up to the top of the funnel ; a third sleeve is similarly inserted, and as this is forced into the funnel the first sleeve is forced into the space between the joint members 30, 31. The assembled joint is then removed and two new joint members are placed in position for the production of another joint on the next stroke of the plunger after insertion of another sleeve.
Patent GB-373605-A (GB)
Title: Improvements in or relating to display devices for advertising or like purposes
IPC: G09F11/23
Filed: 1931-02-23
Abstract: 373,605. Changing signs. COOPER, H. C., 57, Victoria Street, London. Feb. 23, 1931, No. 5685. [Classes 3 (i) and 3 (ii).] A stroboscopic display device comprises discharge tubes 1 mounted on a rotatable member 2, mechanical means being provided for automatically varying the ratio of periodicity of the intermittent or alternating current exciting the tubes 1 to the speed of rotation of the member 2 whereby a varying number of images appear in varying positions. The tube terminals are connected to slip rings 12 on which bear brushes 15 connected to segmented rings 163 .. 168 at the output side of an induction coil 17. The rings 163 .. 168 are rotated stepby-step by gearing 53 .. 58 from the main shaft 9 through a spring snap device 61, 62 releasing periodically a detent 67. The rings 12 and 163 .. 168 may be so arranged that two or more sets of tubes 1 may be illuminated simultaneously, the induction coil 17 &c. being duplicated whereby the sets of images may appear to rotate in opposite directions or at different speeds. A motor 28 carries on its shaft two cams disposed at 90‹ to each other, and each opening simultaneously two contact breakers, whereby the number of impulses per second imparted to the primary of the coil 17 is doubled or halved according to whether a short-circuiting mercury switch 36 is open or closed, the switch 36 being actuated by a cam 41 geared to the shaft 9. The speed of the motor 28 is controlled by a regulator 29 the switch arm 45 of which is turned by gearing 42, 43 from the shaft 9. Of mercury switches 33, 34, 35 controlled by cams 50, 51, 52 geared to the shaft 9, the switch 33 in one position puts a pair of contacts 25 in circuit with the coil 17, the contacts 25 being opened and closed by a cam 26 once every revolution of the shaft 9, thus illuminating the tubes 1 once every such revolution. In the other position of the switch 33 the contact breakers carried by the motor 28 are in circuit with the coil 17. The switch 34 operates a lamp &c. external to the apparatus when the switch 35 disconnects the coil 17 from its source of current. The motor 28 may be replaced by gearing from the shaft 9, and other modifications of the device may be made. Fig. 4 shows a mounting for a discharge tube 1 comprising two cylindrical two-part ebonite or like containers 70, 71 each of which encircles an electrode extremity 72 of the tube 1. Each container is split along its length at 73, its two parts being gripped together by a terminalcarrying clip 79 to hold an asbestos or like heat resisting wrapping 77 and a rubber or like resilient sleeve 78 around the electrode. The lower half 71 of each container is fixed to a bracket 74 mounted on a support 81 by screws which may pass through slots in the bracket 74 to allow of adjustment of one of the containers. In a modified form of mounting both electrodes are gripped between two wooden or like blocks bolted together.
Patent GB-142084-A (GB)
Title: An improved hood for protecting the coiffure
IPC: A45D8/40
Filed: 1920-02-25
Abstract: 142,084. Wandt, F. April 19, 1919, [Convention date]. Hair-dressing appliances.-A device for training the hair and keeping it in place while sleeping, travelling, &c., comprises a hood a of net or other material with a rear portion reaching to the nape of the neck, with straps c attached to the front portion at the temples, adapted to be drawn round the back of the head and secured by a buckle d or press-button, elastic portions e allowing of adjustment.
Patent GB-356649-A (GB)
Title: Improvements in or relating to spectacle or eye-glass frames or the like
IPC: G02C5/02
Filed: 1931-02-24
Abstract: 356,649. Spectacles &c. NEWBOLD, S. W., 72, Gray's Inn Road, London. Feb. 24, 1931, No. 5758. [Class 97 (i).] The bridge of a spectacle or eyeglass frame made of tortoiseshell &c. is provided with a thin metallic sheathing 3 shaped and contoured to the underside and to the back or front, or both, of the bridge 1, and to the adjoining portions of the rims 2. The sheathing is attached to the frame by rivets &c. 7.
Patent GB-651426-A (GB)
Title: Improvements in or relating to radio antennae
IPC: H01Q1/10
Filed: 1948-02-26
Abstract: 651,426. Reels. BARRETT, E. L. Feb. 26, 1948, No. 5770. Convention date, Sept. 8, 1941. [Class 99(ii)] [Also in Groups XXX and XL(c)] A reel for a winch used to extend or retract a telescopic radio antenna, (see Group XL(c)), by means of a flexible member 23 capable of thrust (for example, a closely coiled helical spring) comprises two concentric cylinders 48 and 49 open at one end and riveted at the other to an annular member 47 of insulating material which is gripped between a rigid' washer 45 and a spring washer 46 both secured to one end of an operating shaft 44, thereby forming a friction coupling between the shaft and the cylinders. The cylinders 48 and 49 are spaced apart a distance slightly greater than the diameter of flexible member 23 which is wound therein and has one end secured at a point 63 at the closed end of the cylinders. The free edge of the outer cylinder 49 terminates short of the free edge of cylinder 48, and the latter is curved to form an outwardly extending flange 53 to receive the flexible member 23 during operation of the device. The insulating end-wall 36 of the winch housing 11 is grooved to co-operate with the open ends of the cylinders and guide the flexible member 23 on or off the double-walled drum formed by the two cylinders.
Patent GB-242140-A (GB)
Title: Electric switch
IPC: H01R13/70
Filed: 1925-03-03
Abstract: 242,140. Fairweather, W., (Singer Manufacturing Co.). March 3, 1925. Switches, quickaction; bases; cont a c t s , specially adapted for mounting in incandescent lamp sockets, comprise two cylindrical insulating sections 4, 5 held together by a bolt 6 and having registering channelways formed in their meeting faces, stationary contacts 30, 31 being mounted in one channelway and a snap action movable contact mechanism being mounted on a bracket 14 mounted in the other channelway. The operating handle 36 and the movable contact-member 18 are both pivoted at 17 to the bracket 14 and a quick action is given by a dead-centre compression spring 26 connected between the contact-member 18 and the end of the handle 36. The movable contact 13 on the member 18 is adapted to bridge the fixed contacts 30, 31, and the contact 30 is made longer and more springy than the contact 31 so as to be engaged first.
Patent GB-666419-A (GB)
Title: Improvements in mirrors, brushes and the like
IPC: A45D42/08
Filed: 1949-03-04
Abstract: 666,419. Brushes. DANIEL, E. W., and DANIEL, P. March 2, 1950 [March 4, 1949; April 8, 1949], Nos. 5959/49 and 9582/49. Class 19. [Also in Group XV] A mirror, brush &c. mounting comprises a peripheral frame a of bent metal wire or strip with ends secured together, and an auxiliary channel section frame d which carries the mirror or brush head with an ornamental back panel, or an auxiliary frame j carrying an ornamental handle assembly, or both, retained in a part of the frame a of corresponding outline by scroll, filigree or other ornaments l, m, n soldered or otherwise secured to the peripheral frame on each side. The ornamental strips n are soldered into transverse grooves in the frame a and their ends are bent over after the frames d, have been inserted. The parts such as a mirror, cardboard packing, a petit point back panel and a protective sheet of transparent plastic, or for the handle two ornamental panels with cardboard between them, may be assembled into the frames d, j and finished beforehand.
Patent GB-488305-A (GB)
Title: Improvements relating to electric immersion heaters
IPC: H05B3/82
Filed: 1937-03-01
Abstract: 488,305. Electric immersion heaters. BULPTTT & SONS, Ltd., and BULPITT, W. H. March 1, 1937, No. 6008. [Class 39 (iii)] A plug 6 carries a plate 8 having a deep narrow groove 9 containing the heating elements and a flange 25 adapted to overlap the vessel wall 2 around the opening in which the plug is inserted. The heater is clamped in position by a central bolt 17 or by a nut engaging the screwed exterior of the plug. A safety device as described in Specification 486,450, may be provided.
Patent GB-1423984-A (GB)
Title: Extruders
IPC: B29C48/08
Filed: 1972-02-09
Abstract: 1423984 Extrusion calendering DAVID BRIDGE & CO Ltd 8 Feb 1973 [9 Feb 1972] 6045/72 Heading B5A [Also in Division G3] Rubber or plastics material is delivered from the outlet 25 of a screw extruder 16 and under extrusion pressure into the nip 52 of sheet calendering rolls 42, 46, and control means are provided for maintaining constant the thickness of the calendered sheet by automatically varying the speed of an electric or hydraulic motor which rotates the screw 18. The control means (may) comprises an electric strain gauge mounted in the roller frame for measuring the load at one, or both ends, of one or both rolls 42, 46 and in either the calendering direction or the direction perpendicular thereto, and acting by change of resistance or impedance upon resilient deflection of the roll or rolls in the frame, to vary the speed of the screw 18 through a control circuit (not shown). The upper and lower rolls 42, 46 are respectively supported in bearing blocks 36, 38 located in vertical slideways 32, 36 of frame members 28 and 30, with the spacing between the rolls fixed, or the spacing between one or both rolls being adjustable by support means for the blocks. The upper bearing blocks 38 may be located with a clearance in the slideways 32, 34 and suspended from vertical columns 50 which are resiliently deflectable in the direction of calendering under a load on the rolls in that direction, the deflection of the bearing 39, e.g. of a maximum of 0À04 inch acting, via a slidable rod 54, upon the strain gauge 55 to control the speed of the motor driving the screw to maintain constant the load on the rolls. Alternatively, the bearing block actuating the strain gauge may be supported by roller bearings for displacement under load, and against resilient means in a slideway extending in the direction of calendering. Alternatively, the strain gauge may be mounted to act in response to a load on the rolls acting perpendicularly to the calendering direction. The speed of the extruder screw or rolls, and the roller gap and the load on the rolls which is to be maintained constant, are settable by an operator. The extruder screw 18 and barrel 16 may be heated or cooled, and the calendered sheet may be transported by a conveyer to a curing oven and cooling means. Pressure in the die 24, or in the region between the outlet 25 and the rolls, may be indicated to the operator by a pressure gauge, and the load of the strain gauge may also be indicated.
Patent GB-283012-A (GB)
Title: Improvements relating to bucket dredges
IPC: E02F3/08
Filed: 1927-03-04
Abstract: 283,012. Payne, F. W., and Payne, F. G., (trading as Payne & Son, F. W.). March 4, 1927. Endless - chain machines.-In a bucket dredger for use in abnormal depths, the ladder is stayed transtransversely by guy ropes 12, Figs. 1 and 2, extending from the lower end of the ladder to the ends of a transverse boom 11 carried by the pontoon 1. The guy ropes are adjusted by winding gear and may form part of the lifting tackle; they are independently adjusted as by screws 16. The upper run of the bucket chain is supported by rollers 6 and the lower run is supported centrally by one or more rollers, preferably by means of a chain of linked trays 22, Fig. 7, shaped to fit the outer portion of the brackets and running on a track formed of rollers 19 and flanged and adjustable end rollers 20, Fig. 1. Accumulation of spoil on the upper surface of the bracket ladder is prevented by supplying water through pipes 26, 27, Figs. 4, 6, and 7, to a space 28 between overlapping plates 29, 30, of the ladder, the water then passing downwardly through openings 32, Fig. 4. Scouring-apparatus.-The bucket ladder may be provided with a further water supply pipe 33, Figs. 4 and 7, leading to nozzles 35 to wash away material which caves in on the ladder.
Patent GB-940081-A (GB)
Title: Improvements in or relating to universal joints
IPC: F16D3/26
Filed: 1961-02-20
Abstract: 940,081. Universal joints. LEMFORDER METALLWARENGESELLSCHAFT. Feb. 20, 1961 [Feb. 22, 1960], No. 6212/61. Heading F2U. A universal joint comprises a tongue 5 formed on one shaft and pivotable in a slot 4 in a split cylindrical block 3 of a polyurethane or other plastic which is pivotable in a transverse bore 2 in a bearing body 1 to which the other shaft (not shown) is secured by screws engaging threaded holes 1a. The end walls of the slot 4 may be straight and extend axially so that longitudinal movement of the shafts is permitted, alternatively the walls may be curved to correspond to the periphery of the tongue to prevent such movement. Oil grooves are provided in the surfaces of the block 3, and the housing 1 is sealed by a boot 6. The housing 1 is enclosed in a sheet-metal casing 7 which either directly, or with the interposition of segmental pieces, abuts the ends of the block 3 to prevent transverse movement.
Patent GB-112086-A (GB)
Title: Improvements relating to Lenses.
Inventor: RICHEY WILLIAM FREDERICK ALBER
IPC: F21V5/04
Filed: 1917-05-03
Abstract: 112,086. Richey, W. F. A., Jeboult, W. A., and Stobart, H. J. S. May 3, 1917. Lenses.-A lens for search-lights &c. for converting parallel beams of light into conical beams comprises an annular part b of plano-convex section and a central circular part a of plano-convex section. The annular part may be formed of two or more pieces united or framed together.
Patent GB-952419-A (GB)
Title: Binding strap
Inventor: WYCKOFF HAROLD WINFIELD
IPC: B29C48/13
Filed: 1962-02-19
Abstract: 952,419. Straps and bands. AMERICAN VISCOSE CORPORATION. Feb. 19, 1962, No. 6386/62. Heading A4X. A binding strap 33 for packages &c. is formed of a polymeric fibre forming material such as polypropylene having its molecules oriented longitudinally of the strap, the strap having longitudinally extending thick portions 34 and thin portions 35 alternating transversely thereof. In a method of making the strap molten polypropylene is extruded from a hopper 10 through a rectangular orifice into a brine bath 11 in a tank 12 maintained at a low temperature, the band 13 formed being led about a roller 14 and driven shaping rolls 15, 16 over an adjustable roller 17 and transfer roller 18 into a warm water bath 19 and thence via guide rollers 21, 22 to low speed draw roll 23 and nip roll 24 and then between a high speed draw roll 25 and nip roll 26.