baber/WOPTO huggingface dataset:
Patent GB-245111-A (GB)
Title: Recuperative heat exchange apparatus for air or other media
IPC: F28D19/04
Filed: 1925-12-18
Abstract: 245,111. Sandberg, A. Dec. 19, 1924, [Convention datel. Feedwater, heating. - Apparatus of the type in which two different heat exchanging media flow through separate alternate passages between spaced discs comprises rotatablo discs mounted on a shaft in a casing and provided with scrapers. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a form in which hollow discs 27, Fig. 10 (Cancelled), are mounted on a hollow shaft through which a third medium such as feedwater is led. Scrapers 29 in this form comprise two parts separated by springs 30, 31. This subject-matter does not appear in the Specification as accepted.
Patent GB-841252-A (GB)
Title: Improvements relating to electric immersion heaters
Inventor: PANNISET DENIS SYDNEY
IPC: H05B3/06
Filed: 1955-11-10
Abstract: 841,252. Electric immersion heaters. SIMPLEX ELECTRIC CO. Ltd. Nov. 12, 1956 [Nov. 10, 1955], No. 32131 /55. Class 39(3). An immersion heater, e.g. for a water tank, comprises selectively energisable upper zone and lower zone heating elements controlled by a single thermostat so that when the whole of the water in a tank is heated there is provided a somewhat lower controlled temperature than is the case when only the upper zone is heated. As shown, an immersion heater comprises a mounting boss 10 with a cover 34, 35 and earthing screw 38 and has upper and lower tubular sheathed heating elements 17 and 18, the ends of which are taken to a common terminal 19 and two terminals 22 and 23. Controlling both elements is a single thermostat comprising a head assembly 29, having both a switch and adjusting means (not shown), and an elongated tubular housing 30 containing a tube 31 and a rod 32. The differential of the tube 31 and the rod 32, which are secured together at their lower ends operates the thermostat switch. The ratio of the length of the upper zone portion of the housing 30 to the length of the lower zone portion is chosen, e.g. in the range 4 : 1 to 8 : 1, so that, for a given thermostat setting a slightly higher temperature operates the thermostat switch when the upper zone alone is heated than is the case when the lower zone is heated. In operation, with element 17 energised only the upper portion of the thermally sensitive assembly is heated ; with element 18 energised, all the assembly is heated and the expansion of the lower zone portion is additive in its effect to the expansion of the upper zone portion. The elements and thermostatic means may form a unitary assembly, or may be mounted separately, e.g. with the elements mounted horizontally on separate bosses disposed at vertically spaced positions. The elements may project downwardly at an inclination to the vertical, or, in another arrangement, may be disposed in a single tube. Specification 485,203 is referred to.
Patent GB-273581-A (GB)
Title: Improvements in or relating to spool-carrying or tube frames of looms for weaving tufted fabrics
IPC: D03D39/06
Filed: 1926-12-20
Abstract: 273,581. Carpet Manufacturing Co., Ltd., and Cooper, T. Dec. 20, 1926. Pile-fabric looms. - The spool-carrying tube frames of looms for weaving tufted fabrics such as seamless Axminster or Moquette carpets comprise a tubular metallic bar member 6 provided with a. reinforcing block 10 for accommodating the fixing means for a bearing 9 for the spindle connecting the ends of spools 8, and means for effecting the adjustment of strip springs 14 exerting friction on the spools. The bracket or bearing 9 is secured to the member 6 by a screw 11 passing through the block 10 and the member 6, rotation of the bracket being prevented by studs or by portions 9a fitting saddle-wise across the member 6. The strip spring 14 is secured by a rivet 17 to the member 6 and is engaged by a spring 13 placed in a hole in the block 10 and engaged at its lower end by a collar 16 adjustable on a screw 15, rotation of the collar being prevented by a projection on the collar accommodated in a slot 10<c> in the block 10. The member 6 is formed as a solid drawn tube provided with a shoulder 6<a> overhanging the top corners of the fur tubes 7.
Patent GB-211246-A (GB)
Title: Improvements in apparatus for determining volumetric proportion of a gas or gases in gaseous mixtures
IPC: G01N7/04
Filed: 1922-11-24
Abstract: 211,246. Woodroffe, F. K., and Scott, Ltd., J. Nov. 24, 1922. Indicating; dials and scales. - Indicating mechanism for gas-analysis apparatus is provided with a brake device to maintain the indicating means in indicating position for as long a period as the apparatus will allow. The movements of the gas-bell 3 are indicated on the scale 5 by the pointer 4 which is actuated by a, pin 34 on a weight 33 carried by a chain 31 attached, as shown, to the gas-bell. The brake device comprises a weighted arm 36 hinged at 37 and normally bearing on the pivot 35 which carries the pointer 4. The wheel 24, which is rotated one quarter of a revolution at each engagement with the teeth 26, 27 on the rotating wheel 21, carries a projection 39 which periodically releases the pressure on the pivot 35 to allow a fresh indication to be given. In modified forms of the indicating means, the pointer may establish electric contact with variously coloured lamps, or a strip. of variously coloured mica or the like may be carried by an arm in front of a fixed light.
Patent GB-1192326-A (GB)
Title: Heat Transferring Elements for Heat Exchangers
IPC: F28D19/04
Filed: 1968-07-05
Abstract: 1,192,326. Heat exchangers. SVENSKA ROTOR MASKINER A.B. 5 July, 1968 [16 Aug., 1967], No. 32160/68. Headings F4K and F4S.  Means for forming either a rotary regenerator matrix or a hollow plate heat exchanger comprises heat absorbent plates having dimples formed on opposite sides which alternate with plane sheets so as to form fluid passages therebetween of uniform height. The dimples are so formed that a dimple extending outwardly from one face of a plate comprises an extension of a wall portion of a dimple formed on the opposite face of the plate. The hollow heat exchange is formed by bending two opposing edges of a plane sheet to the height of a dimple and welding the off-set portions to a dimpled sheet.
Patent GB-1044518-A (GB)
Title: Improvements in and relating to the regeneration of gas scrubbing solutions
Inventor: BROMILOW GEOFFREY TAYLOR
IPC: B01D61/44
Filed: 1962-08-22
Abstract: An electrodialysis cell comprises a plurality of cells each having two compartments containing a preselective single membrane, preferably anionic, the walls of each cell being a double membrane, anionic and cationic bonded together, the whole assembly having an anode at one end and a cathode at the other. It is stated that the function of the double membrane, is to ionize water passing through with generation of OH and H ions. The dialysis cell is used to regenerate foul alkaline liquors formed in an industrial gas scrubbing plant e.g. washing out Co2, from which the liquor passes through alternate compartments where sodium ions are removed through the single membrane into a second stream of purified liquor.  The dialysed first stream is fed to a de-gasifier where Co2 is removed and forms the second stream which after passing through the dialysis cell becomes re-causticised and is again used for scrubbing foul gas. In other applications (1) washing liquor containing sodium sulphite, bi-sulphite, and thio-sulphate is oxidized in an aertor to sulphate and sulphur; the latter is filtered off and the sulphate solution dialysed to generate alkali and dilute sulphuric acid, (2) flue gas containing H2S is washed with alkali carbonate solution containing a little anthraquinone and sodium vanadate.  After removal of sulphur compounds by dialysis mainly as complexed vanodate, these are acidified in a second stream and the regenerated vanadate regenerates alkali carbonate.  A number of multi-stack cells are described, each cell having the central single diaphragm with cell walls of double diaphragms of opposite ionic charge.  In one multi-stack the end cells contain two single diaphragms Fig. 4 (not shown).  There is also illustrated frame and spacer members (Figs. 5, 6 not shown) of normal construction but the communicating channels are either inclined slots in the edge of the frame, or a short straight slot provided with a pipe.
Patent GB-629590-A (GB)
Title: Improvements in or relating to photographic roll film cameras
IPC: G03B17/30
Filed: 1945-11-29
Abstract: 629,590. Photographic roll-film cameras. KERSHAW & SONS, Ltd., A., KERSHAW, N., and HUSBAND, H. R. Nov. 29, 1945, No. 32247. [Class 98 (i)] A roll-film camera has one or both.film spools carried in cradles which are pivotally mounted in and spring-urged to pivot out of the camera body. Preferably when loaded with film spools the cradles are retained within the camera by holding means engaging the spools. As shown, the cradle 1 for the supply spool, comprising a base 2 and side walls 3, is pivoted in brackets 7 which fit in the camera body by pins 4 engaging holes 5, 6 in the brackets and cradle respectively. Springs (not shown) carried by the pin 4 tend to move the cradles out of the camera until lugs 8 on the side walls 3 engage stops in the camera, recesses 9 in the walls 3 being provided to clear the film guide roller 10 supported in holes 11 in the brackets 7. Lugs 12 position the unexposed spool in the cradle so that, when the cradle is swung into the camera, studs 15 carried on spring arms 14 projecting outwardly through slots in the walls 3 enter the axial holes in the spool ends as the arms 14 are pressed inwardly by the inclined faces 16 on the brackets 7. The cradle and full spool are retained in loaded position by a centrally-disposed spring 17 engaging the spooled material, but when the material has been wound off, the cradle will swing out of the camera and the spool will be ejected by springs 18. The cradle for the takeup spool is similarly constructed but the spring arm 14 is omitted from the end of the spool engaged by the winding key, and the spring 17 is omitted from the cradle locating brackets, so that on disengaging the winding key the cradle is released and the spool ejected. In alternative arrangements the inclined bracket faces 16, a support for the cradle pivots and the pins for the film roller 10, and leaf-spring 17, are secured to the camera as separate parts, and the springs 18 are formed as extensions of the spring arms 14.
Patent GB-760128-A (GB)
Title: Automatic control system for aircraft
Inventor: BEERS MAX IRWIN
IPC: G05D1/06
Filed: 1953-11-20
Abstract: 760,128. Automatic speed-control systems. SPERRY CORPORATION. Nov. 20, 1953 No. 32322/53. Class 38 (4). In a system for maintaining constant airspeed of an aircraft a servomotor adjusting aircraft engine power is automatically controlled by the difference between a signal which is a measure of airspeed error and a signal which is a decaying measure of pitch of the aircraft. When the speed of an aircraft has been adjusted manually to a desired value by means of throttle levers 68, a switch 18 is operated manually to energize a clutch 16 coupling an armature 10 of an E-type electromagnetic pick-off 8 to the differential bellows 4 of an airspeed indicator 21. An A.C. signal of magnitude and phase-sense corresponding to the magnitude and sense of any deviation in airspeed from the desired value is then amplified at 25 and applied through a transformer 38 to an amplifier 31 controlling a reversible D.C. servomotor 34 which by virtue of clutch 69 energized through switch 18 is then effective to correct the airspeed deviation by adjustment of the throttles. A signal proportional to rate of change of airspeed error, derived from the airspeed error signal by demodulating at 28, smoothing at 29 and differentiating at 30, is applied to amplifier 31. An A.C. signal dependent on the pitch angle of the aircraft is derived from the pitch pick-off of a gyrovertical 46 and converted into a corresponding D.C. signal at 56 so that, after smoothing at 57, a signal is produced which is applied to amplifier 31 through a resistance-capacity network 40 in such a sense that servomotor 34 is operated to anticipate changes in airspeed consequent upon changes in pitch. A D.C. tachometer generator 43 coupled to servomotor 34 applies a feed-back to the input of amplifier 31 which is integrated by network 40. Signals from gyrovertical 46 are also combined with signals from an altimeter 80 or a glide path radio receiver 72 according to the setting of a switch 79 to control, through amplifiers 74 and 75, a twophase servomotor 76 adjusting elevators 77 to maintain the aircraft at a desired altitude or on a glide path.
Patent GB-521003-A (GB)
Title: Improvements in furnaces for use in heat treatment of articles or in heating articles for subsequent operations
IPC: F27B9/24
Filed: 1938-11-08
Abstract: 521,003. Conveying charges within furnaces. SANKEY & SONS; Ltd., J., and LAW, L. W. Nov. 8, 1938, No. 32361. Drawings to Specification. [Class 51 (ii)] Articles are conveyed through a continuous furnace on staggered rows of large overlapping discs projecting through separate slots in the furnace base and mounted on transverse shafts located in a chamber therebeneath. Discs at the exit end of the furnace are driven faster than the others.
Patent GB-389186-A (GB)
Title: Improvements in fuel injection pumps for heavy oil engines
IPC: F02M59/24
Filed: 1931-11-23
Abstract: 389,186. Fuel-injection pumps. SERSTE, J. E., 83, Rue de Wautier, Laeken, Brussels. Nov. 23, 1931, No. 32456. Convention date, Sept. 10. [Class 102 (i).] In a fuel-injection pump, of the type in which the fuel is trapped between a mechanically-operated plunger 10, Fig. 1, and a spring- pressed plunger 4, the suction takes place from a suction chamber 1 through passages 25, 251 in the plunger 10 and the amount of the charge is regulated by an axiallyadjustable sleeve 10<1>. The discharge takes place through passages 16, 16<1>. In a modification the passage 25<1> is dispensed with and suction takes place through the passage 16 and a passage parallel with the passage 16<1>. Excess. charge escapes through a byepass in the plunger 4 controlled by the sleeve 10<1>. In the form shown in Fig. 6, the plunger 4 operates in a bore in the plunger 10. Fuel passes to the pump chamber 14 from a suction chamber 1 through a port 29 in an axially adjustable sleeve 10<1>, holes 28 in the pump body and a peripheral groove 27 and passage 16 in the plunger 10. In a modification the plunger 10 operates in a rotatable sleeve formed with a V-notch, forming the suction port and co-operating with the passage 16 to vary the amount of the charge.
Patent GB-286400-A (GB)
Title: The manufacture of new therapeutic compounds
IPC: C07D519/02
Filed: 1926-12-23
Abstract: 286,400. Wellcome Foundation, Ltd., and Timmis, G. M. Dec. 23, 1926. Ergotoxine.-Weak alkalis such as sodium bicarbonate, borax. &c. are used in the preparation of amorphous ergotoxine from an acid extract of ergot or from its salts, or in the separation of ergotoxine from ergotinine. The acid extract, which is obtained by the action of tartaric acid or citric acid, is treated with the weak alkali in order to precipitate the alkaloids, and these are separated by conversion into the sulphates. As regards the separation of ergotoxine from ergotinine, phosphoric acid or dilute acetic acid are employed, the ergotoxine formed in the latter case being isolated by conversion to the sulphate. Amorphous ergotoxine is.obtained from the sulphate or phosphate produced by the above methods by treatment with a weak alkali and extraction with ether, and may be crystallized from benzene or its homologues.
Patent GB-1064183-A (GB)
Title: A furnace for the catalytic steam reforming of gaseous hydrocarbons
IPC: C10G9/20
Filed: 1965-07-29
Abstract: <PICT:1064183/C4-C5/1> Apparatus for steam reforming gaseous hydrocarbons comprises catalyst-filled tubes 17 mounted vertically in a heated furnace 2 and steam pre-heating tubes 14 each with a solid core and connected at 16 to an adjacent catalyst-filled tube 17.  The furnace is heated by burners 5 arranged above a horizontal perforated partition 4 and each steam preheating tube has a coil 12 attached to it and disposed within the furnace below the partition 4.  The gaseous hydrocarbons are supplied to the tubes 17 through tubes 21 protected by outer tubes 22 and terminating above funnel-shaped members 23, 24 and below the preheated steam inlets 16.  The gas produced is withdrawn through an outlet 28.
Patent GB-1348708-A (GB)
Title: Coupling mechanism
IPC: C23C14/50
Filed: 1971-07-12
Abstract: 1348708 Shaft couplings INTERNATIONAL BUSINESS MACHINES CORP 12 July 1971 [13 Aug 1970] 32554/71 Heading F2U A coupling mechanism includes drive means (e.g. a motor connected to a shaft 128) to rotate a first element 190, 194, 212 into engagement with a second element (e.g. a holder 300 for semi-conductor substrates in a heated vacuum deposition apparatus 100, 110, 112) as a result of whose inertia, the first element is then moved axially without rotation and is subsequently rotated again with the second element. As shown the holder 300 is at rest upon a support 108. Upon rotation of the shaft 128, element 190 is rotated until arms 212 and 214 engage braking element 190. A nut 170 is then lowered to engage a plate 154 fixed via a part 140 to the shaft 128, whereupon the elements 190 and 300 are raised off the support 108 and start to rotate as the inertia of the holder 300, effectively increased by a spring 240, is overcome. The height of the holder 300 when rotating with the shaft 128 can be varied by changing the spring 240, or by changing the speed of rotation (e.g. from 8 r.p.m. to 16 r.p.m.). When vacuum deposition is finished the mechanism is disconnected by reversing the motor.
Patent GB-1279805-A (GB)
Title: Lift trucks
IPC: B66F9/14
Filed: 1969-06-27
Abstract: 1279805 Masked lift trucks SKAGIT CORP 27 June 1969 [27 June 1968] 32654/69 Heading B8H The load carrier 70 of a masted lift truck is mounted on the lifting carriage 56 so as to be pivotable, by means of a ram 30, between the full-line position in which fork arms 72 extend forwardly and the broken-line position in which the forks extend over a load-bearing roof of the cab. The frame of the truck may be provided with a clamp arm for stabilizing a load on the cab roof during transportation, Figs. 2, 4 (not shown). Alternatively, the load carrier 70 may be provided with an adjustable load clamp, Figs. 5, 6 (not shown). The mast assembly 16 comprises uprights 36, 38 which are mounted on a cross-beam 32, tiltably mounted on the front axle, and which guide sliding uprights 44, 46. The lifting carriage 56 consists of frame 58 which is guided for movement on the uprights 44, 46 and which supports a member 60 to which the load carrier 70 is pivotally connected. The fork arms 72 are slidably mounted on bars 76 and are movable therealong by hydraulic rams, Fig. 5 (not shown).
Patent GB-453763-A (GB)
Title: Process for producing grainless machine prints from photographic images
IPC: G03C5/02
Filed: 1934-12-13
Abstract: 453,763. Photo-mechanical printing- surfaces. MOND, A. L., 19, Southampton Buildings, Chancery Lane, London.-(Irato Ges.; St. Gallen, Switzerland) Dec. 13, 1934, No. 32709. [A Specification was laid open to inspection under Sect. 91 of the Acts, May 14, 1935.] Drawings to Specification. [Class 98 (ii)] In a process for making grainless machine prints from photographic images by the bromoil process, the emulsion of the sensitive material which is to form the transfer block has a gamma, chosen according to the alteration in slope of the gradation curve of a print produced in the printing operation, such that the gradation curve of the resulting print is substantially identical with the curve of a positive printed from a normal negative. The nature of the emulsion used depends on the number, circumference and angular velocity of the rollers of the printing machine used, on the paper and on the ink. For example, an emulsion is prepared by dissolving 50 gms. of gelatin in 200 c.c. of water at 50‹ C., with the addition of 10 gms. of silver nitrate. To this is added the equivalent of potassium bromide, the temperature is raised to 70‹ C. and a further 50 gms. of gelatin added. The resulting emulsion is melted with an equal quantity of gelatin, cast, and the resulting film exposed under a negative. The silver image is then developed in a solution of, for example, metol, hydroquinone, sodium sulphite, sodium carbonate, potassium metabisulphite, citric acid, and potassium bromide, bleached with a solution of, for example, chromic acid, copper sulphate, and potassium bromide which locally hardens the gelatin of the film, and the film is then washed with glycerine and water to swell the unhardened parts and mounted in the printing machine. Prior to tanning a film of gelatin or like colloid having a melting point below that of the sensitive layer may be applied thereto. After the bleaching step, the unhardened gelatin is washed away, yielding a plate with reduced relief.
Patent GB-163646-A (GB)
Title: Automatic means for feeding book-signatures, book-covers, sheets and like objects to machines
IPC: B65H1/08
Filed: 1920-11-20
Abstract: 163,646. Murray, J. Nov. 20, 1920. Pile tables and supports for sheet-feeds.-In a machine for feeding book signatures, covers, &c to machines of the kind in which they are pilec on edge on a conveyer which advances them to a separating and forwarding device, the conveyer is driven normally at a speed less than the thick ness of a signature for each signature fed, and a finger acting on the pile controls ratchet, clutch or like mechanism which brings into action a quicker drive and maintains the pile in correct position. As shown, the pile A is advanced over a table H by a conveyer (not shown), which is driven from a shaft C geared to the sprocket wheels of the conveyer by a reducing epicyclic gear. The shaft C is driven normally from a constantly-driven wheel B by means of a pivoted pawl B<2> geared to an operating sector B' fitted with a roller B<4> which engages a cam F<1> tc throw the pawl B<2> into driving connection with a ratchet E on shaft C. Normally the pawl B<2> after a partial rotation is tripped out of driving position by a lever G acting on a projection B<9> of the pawl. A spring B' maintains the pawl B<2> stable in either position. When the pile A gets low, the lever G is moved to the position shown by dotted lines, so that the pawl B<2> remains in driving contact and the increased rate of feed corrects the position of the pile. The lever G is controlled by a rod J<4> acted on by a spring J<5> which tends to move it to the raise the lever G to the dotted line position. The rod J<4> is connected to a bell-crank J' oscillated by a cam-reciprocated rod J<8> connected to it by a pin-andslot connection. The lever J<1> is fitted with a finger J which is normally pressed on the pile by the rod J<8> once for each reciprocation of the rod J<8>, and the pressure of the pile on the finger J is normally sufficient to prevent the spring J<5> from moving the rod J<4> to cause the lever G to assume the dotted line position. When, however, the pile is not advanced sufficiently, the finger J sinks into the pile and the spring J<5> causes the rod J<4> to actuate the lever G ta prevent the tripping of the pawl B<2>, and so to increase the rate of feed of the conveyer.