baber/WOPTO huggingface dataset:
Patent GB-642156-A (GB)
Title: Improvements in or relating to apparatus for assessing the amount of a gas of relatively high magnetic susceptibility contained in a mixture of gases
Inventor: MEDLOCK REGINALD STUART
IPC: G01N27/74
Filed: 1947-10-13
Abstract: <PICT:0642156/III/1> <PICT:0642156/III/2> A device for determining the amount of a constituent having high magnetic susceptibility in a gas mixture of the kind wherein the gas is locally heated in a magnetic field to induce a flow dependent on the change of susceptibility due to heating, and wherein a response is obtained depending on the flow and on the specific heat of the gas, is provided with correction means to make the response independent of the viscosity and the specific heat.  The gas is passed downwardly through the two halves of the annular cell 1A, which are arranged in parallel, and connected by a transverse passage 1A6 carrying a centre-tapped heating winding 1A7 constituting two of the resistances of a Wheatstone bridge. One half (shaded) of this passage is situated in a magnetic field. The attraction into the field of a susceptible gas and its subsequent loss of susceptibility on heating result in a flow through the transverse tube which by differential cooling of the winding 1A7 unbalances the bridge.  The gas then passes through the compensating cell 2A, which resembles the first cell but has the transverse tube arranged vertically and has no magnetic field. A convectional current is thus produced in tube 2A6, producing an unbalancing of a second Wheatstone bridge, which is so connected with the first that the net response of the galvanometer G depends only on the magnetic susceptibility.  In a modification, Fig. 4, the flow past the compensating winding 2 is produced by passage through a constriction 3 under a constant pressure controlled by regulator 4.
Patent GB-1116697-A (GB)
Title: Pneumatic powered rotary tool with integral exhaust silencer
IPC: F01C1/344
Filed: 1965-06-29
Abstract: 1,116,697. Exhaust silencers; rotary motors. CHICAGO PNEUMATIC TOOL CO. June 29, 1965 [Sept.30, 1964], No.27457/65. Headings F1B and F1F. The exhaust from a pneumatically driven rotary motor 16 e. g. of a grinding tool, passes through slots 56, (57), Fig. 8 (not shown) into passage 58 connected through aperture 62, Fig. 7, to an arcuate passage 63 to which are connected resonant chambers A, B, Figs. 2 and 6, in the cap 17 and a resonant chamber C, Fig. 7, in the handle 34. The compressed air, under control of a manual valve enters through a second handle and port (37), Fig. 8 (not shown) into chamber 39 and flows past speed governor-controlled valve 42 into chamber 45 supplying the motor inlet ports. The chambers A, B, and C are connected to passage 63 through resonant throats 81, 82, 83 and the gases escape to atmosphere through orifices (74), Fig. 8. Chamber B is tuned to the fundamental frequency of the exhaust gas noise, e.g. 350 c.p.s., and chambers A and C are tuned to higher frequencies e. g. 600 and 800 c. p. s. respectively. A plug 84, Fig. 7, in handle 34 may be adjusted to alter the tuning of chamber C. The motor has eccentric vanes 27.
Patent GB-489905-A (GB)
Title: Method for the production of lamp-shades
IPC: F21V1/00
Filed: 1937-10-11
Abstract: 489,905. Lampshades. KOCH, B. Oct. 11, 1937, No. 27544. Convention date, Nov. 27, 1936. [Class 75 (ii)] Lampshades are manufactured by drawing a tubular net 2 over a wire framework 1, dipping both into a film-forming gelatine and after drying into a film strengthening collodion composition. The shade may be coated with a fish scale preparation to give it an outer decorative effect and an inner reflecting surface.
Patent GB-949222-A (GB)
Title: Improved tilt valve
Inventor: CLEMENTS HUBERT JOHN TOPHAM
IPC: F16K1/00
Filed: 1960-08-10
Abstract: 949,222. Valves. WALTER KIDDE CO Ltd. June 19, 1961 [Aug. 10, 1960], No. 27678/60. Heading F2V. A tilting disc valve comprises a closure member 12 made of a deformable rubber-like material and loaded by a spring 16 on to a seat 6 extending from the part 5 of a twopart body 1, 5. The seat may be made of goldplated brass and the closure member of nylon- One end of the spring 6 embraces the shank 15 of the closure member and the other end is a close fit on a spigot 17 of an adjustable member 18.
Patent GB-167978-A (GB)
Title: Improvements in mechanism for automatically operating typewriters, musical instruments, and the like
IPC: B41J5/38
Filed: 1920-10-01
Abstract: 167,978. Goold, L. W., (Hooven Automatic Typewriter Corporation). Oct. 1, 1920. Strip-controlled driving-mechanism.-In mechanism controlled by a perforated strip, for operating typewriters, musical instruments, and the like, each key-lever is operated by a vertical hanger provided with a pivoted pawl adapted upon meeting a perforation in strip to drop into a pocket in a rotary cylinder and to be moved laterally with the hanger, which is thereupon depressed by a driving-member. For example, each key-lever 40 is associated with a vertical hanger 10 provided with a pawl 20 for engaging a perforated strip S supported by a rotating feedcylinder 30 provided with circumferential rows of teeth or pockets 31 which are in register with the pawls. The cylinder may consist of alternate toothed wheels 33 and plain discs 34 secured to a shaft 35. The hangers are provided at the top with blocks 13 which carry screws 14 for engaging the associated key-levers and are formed with guide-fins 15 engaging the key-lever comb 16a. The hangers are guided at the bottom by slots 17<a> in a bar 17 and are formed with fingers 19 which are normally held in contact with the bar by springs 52. The pawls are formed with circular heads 23 which fit in holes in the hangers and are retained bv the walls of the slots 17<a>. When any hanger has been moved laterally by the engagement of the associated pawl with the teeth 33, the hanger is depressed to operate the keylever by means of a reciprocating driving-member 60 which engages a shoulder 12 on the hanger. When the driving-member rises, the hanger is moved laterally by the springs 52 and is raised by a spring 54, the movement being limited bv the finger 19 and the engagement of the block 13 with a buffer-strip 18<a>. When the hanger is depressed, the pawl engages a rod 72 and the front end is raised above the strip, the movement being limited by a bar 77. The rod is carried by a plate 70 pivoted to the bar 17 and formed with guide-slots 72<a> for the pawls. To permit insertion of the strip, the plate 70 is rocked to raise the pawls by means of a lever 81 provided with a cam 82 engaging the plate.
Patent GB-837086-A (GB)
Title: New 3-amino-thiophene-2-carboxylic acids and the esters thereof and a process of preparing said acids and esters
Filed: 1958-08-29
Abstract: The invention comprises compounds of the general formula <FORM:0837086/IV (b)/1> wherein R1 and R2 each represent a hydrogen atom, an alkyl or an aryl radical and R3 represents a hydrogen atom or a C1-4 alkyl group.  ("Aryl" being defined as an unsubstituted phenyl or an alkyl-, halo- or alkoxy substituted phenyl group) and the preparation thereof by reacting an a :b -dihalogenonitrile: <FORM:0837086/IV (b)/2> wherein X represents a chlorine or bromine atom, with a thioglycollic acid ester in the presence of a condensation agent, and, if desired, hydrolysing the ester to form the free acid.  a  - b  - Dihalogenonitriles are prepared from the corresponding a :b -unsaturated nitriles by addition of halogen. They can also be prepared from a :b -unsaturated nitriles substituted in the a -position.
Patent GB-956867-A (GB)
Title: Shredder for vegetables and the like
IPC: A47J43/25
Filed: 1960-08-11
Abstract: 956,867. Grating or shredding vegetables. A. RICHNER. Aug. 11, 1960, No. 27903/60. Heading A4C. Vegetables fed to a cutting disc 9 on a hand driven shaft 6 in a bearing 8 on a cross member 3 releasably secured to the top of a casing 1 by claws 3a, 3c, are swept under an inclined plate 11 which has one end pivoted at 10 to member 3 and the other, lug shaped, end 11c urged against the cutter by a spring 13 when a pin 13b on its head 13a is engaged in a fork 14 on the cross member, Fins 11d on plate 11 distribute the material over the cutter and a wall 12 depending from member 3 sweeps the material off the casing 1. Elongated roots may be fed to the cutter through a tubular guide 15 on member 3. The cutter 9 is screwed on the end of shaft 6 and may be a coarse or fine grater, a shredder or slicer. The casing has supporting brackets 4a, 4b and legs 5a, 5b.
Patent GB-743091-A (GB)
Title: High pressure flexible hose pipes
Inventor: ALLWOOD FREDERICK FRANCIS
IPC: B29D23/00
Filed: 1953-10-09
Abstract: 743,091. Flexible pipes. ROLLS-ROYCE, Ltd. Oct. 8, 1954 [Oct. 9, 1953], No. 27904/53. Class 99(2). In a hose pipe of the type comprising an inner layer 11 of rubber surrounded by successive layers of textile or asbestos and metallic braiding and an outer layer 15 of rubber, the layer 11 is extruded onto a layer 10 of braiding, e.g. of cotton, nylon or " Terylene " (Registered Trade Mark). As shown, the hose incorporates layers 12 and 14 of cotton braiding separated by a layer 13 of steel pianowire braiding. The hose may be wrapped in damp canvas or fabric, placed in an autoclave and subjected to an appropriate curing temperature.
Patent GB-880569-A (GB)
Title: Improvements in fasteners for stair carpets
IPC: A47G27/06
Filed: 1958-08-30
Abstract: 880,569. Stair-carpet fasteners. READ, R. R. Aug. 26, 1959 [Aug. 30, 1958], No. 27915/58. Class 52(5) A stair-carpet fastener comprises a bracket 1 which is fixed at the corner of a stair, and has a nose 2 over which a carpet is curved and held by means of a clip 4 having two arms 5 which engage the carpet on each side of the nose 2, the clip having a centre pin 7 which engages the bracket so that the clip can pivot about an axis between the clamping arms.
Patent GB-279485-A (GB)
Title: Album for storing gramophone records or the like
IPC: A47B81/06
Filed: 1927-10-20
Abstract: 279,485. Zoller, E. Oct. 21, 1926, [Convention date]. A l b u m s; leaves or mounts.-In an album for gramophone records &c. of the kind in which the record envelopes or pockets are attached with their open ends towards the back of the album, and adapted to, be closed by flaps, the attachment portions on the back of the album consist of folded strips 9, Fig. 4, of canvas &c. secured at the folded end between spacing-bars 8 attached to the back of the album, and the envelopes are attached to the free ends of the strips, the two ends of each strip being attached, one to the closing flap 7 of one envelope and the other to the back of the next envelope above. The strips 9 are reinforced by bars 10, which aid in preventing the records from falling out. The envelopes are formed at the edges with folds 11, Fig. 3, to facilitate the separation of the sides to receive the records. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a construction shown in Fig. 6 (Cancelled), in which the closing flap 4<c> is inserted into the envelope and is provided with an extension 4<d> to facilitate withdrawal and a fold 11 to facilitate bending; the free ends of the attachment strip 9 are attached on opposite faces of one side of the envelope, and the flap 4<c> may be integral with the opposite side, as shown, or may be attached on the inner end of the strip. This subject-matter does not appear in the Specification as accepted.
Patent GB-788475-A (GB)
Title: Purifying synthetic alcohol by a distillation process
IPC: B01D3/14
Filed: 1955-10-03
Abstract: <PICT:0788475/III/1> Synthetic alcohols produced by the catalytic hydration of mono-olefins are purified by a three-stage distillation process comprising (i) subjecting the crude alcohol to fractional distillation to remove low-boiling impurities including all the ether, (ii) eliminating malodorous impurities such as polymer oils by submitting the alcohol to water-extractive distillation, (iii) rectifying the aqueous alcohol withdrawn as bottoms from the base of the extractive distillation column, whereby concentrated and odourless alcohol of high-purity is obtained.  In an example, crude ethanol containing 58 per cent ethanol, 7.5 per cent diethyl ether, 0.5 per cent polymer oils and 34 per cent water, is heated to 200 DEG F. in preheater 1 and fed to 40-plate column 3.  This column is operated at a pressure of 15 p.s.i.g., and is heated by live steam, introduced through line 4, to maintain a base-temperature of 210 DEG F. and a head-temperature of 125-130 DEG  F. The distillate obtained at the top of the column is predominantly ether; this is divided into two streams, one of which is returned to the column as reflux, while the other is withdrawn from the system via line 9.  Some of the more volatile polymer oil impurities accumulate in column 3 slightly above the feed, and are withdrawn via line 10.  Dilute alcohol is withdrawn from the base of column 3, and is passed via cooler 12 to decanter 13, where it is diluted with water to adjust the concentration to about 30-45 per cent EtOH.  Hydrocarbon oil impurities become insoluble and settle out as an upper layer, which is removed through line 14.  The aqueous alcohol is pumped through line 17 into 45-plate column 18 where extractive distillation is effected, steam being introduced into the base of the column via line 20, and water being fed into the top of the column through line 19.  The distillate is passed to decanter 24 where the oil impurities form an upper phase, which is withdrawn via line 25.  The lower aqueous phase may be returned to column 18 as reflux, or it may be partially or wholly withdrawn through line 27.  The bottoms stream from column 18, which contains 3 to 20 per cent EtOH, is pumped to 65-plate column 31, where the alcohol is rectified.  Refined and concentrated alcohol is withdrawn from the system via line 37 or line 40.  Heavy oils are withdrawn from column 31 through side-connections 38.  The water withdrawn from the base of column 31 may, if desired, be partially or totally recycled to column 18.
Patent GB-994246-A (GB)
Title: Tilt swivel mechanism for chairs
IPC: A47C3/026
Filed: 1963-07-16
Abstract: 994,246. Tiltable swivel seats. M. P. BURKE. July 16, 1963 [Feb. 25, 1963], No. 28073/63. Heading A4J. A tilt mechanism for a chair 10 comprises a hollow vertical post 12, a thrust member 19 mounted adjacent the top of the post 12 for angular movement about a vertical axis, a coil spring 47 located along the post 12, with its upper end bearing against the thrust member 19, a seat attaching flange 15 titably mounted on the thrust member for movement about a substantially horizontal axis skew to the vertical axis, and a rod 52 extending through the thrust member and attached adjacent one end to the flange 15 and adjacent the other end to the lower end of the spring 47. As shown, the thrust member 19 is threadably attached to a sleeve 20 fitted within the post 12, and a bearing assembly is interposed between the ends of the thrust member and the post to enable the seat 10 to swivel about the common axis of the sleeve 20 and the post 12 without undue frictional restraint. The flange 15 is pivotally connected to the thrust member 19 by horizontal cylindrical bearing pins 26 so that the seat 10 and flange 15 may pivot about their horizontal axis. Separation of the two parts is prevented by a locking screw 31 which passes through an arcuate slot 32 in the flange 15 and is connected to the thrust member 19. To limit angular movement of the seat an abutment member 41 is provided with a cross-pin 45 which engages the edges of an aperture 42 in the flange 15 when maximum tilt is reached. The seat is returned to its normal position by the action of the compression spring 47. This may be adjusted by turning a handle 66 which rotates the post 52 and thus raises or lowers a nut 50 threadably mounted on the post.
Patent GB-226922-A (GB)
Title: Improvements in and relating to domestic grates or stoves
IPC: F24B1/182
Filed: 1923-11-08
Abstract: 226,922. Franklyn, A. C., and Billington, W. J. Nov. 8, 1923. Combined open fire-places and cooking-stoves; supports for articles to be heated; boilers, arrangement of. -A combination heating, cooking, and water-heating stove is provided with a hollow trivet or hot plate which when in position is connected to a flue on each side of the grate, one leading from the fire-space and the other to a back flue, the combustion products thus passing through the trivet or hotplate. In the stove shown, combustion products pass through a flue 11 beneath the hob 9 to the interior of the trivet 13, and thence through a passage 12 below the hob 10 to a flue 8 at the side of the back boiler 2, from which they pass up the flue 4 to the oven flues. Doors are provided for closing the front openings of the passages 11, 12 when the trivet is not in use. The oven 16 may be withdrawn from the front for cleaning the flues, being held in position by a thumb nut 28 on a screwed pillar 29.
Patent GB-1118304-A (GB)
Title: Readily dispersible inorganic pigments
Inventor: KAPPEY HANS JOACHIM
IPC: C09C3/00
Filed: 1965-07-02
Abstract: A dispersible inorganic pigment carries on the surface thereof a non-ionic cyclic acetal or ketal of a polyhydric alcohol.  The pigment may be an oxide of iron or chromium, or TiO2 which may have Al(OH)3, SiO2 or TiO2 precipitated thereon.  The pigment may contain 0.05-2% of the surface active agent.  The polyhydric alcohol may contain 2-6 OH groups and 2-10 carbon atoms, and the acetal or ketal may be prepared by reacting it with an aliphatic, cycloaliphatic or aromatic aldehyde or ketone. At least 2 of the OH groups of the polyol should react with the carbonyl compound to form one or more rings which may have 5-8 ring members.  Unreacted OH groups may be reacted with an aliphatic, unsaturated or aromatic carboxylic acid, or with an alkylene oxide, e.g. as in Specification 1,115,334.  The surface active agent may be added in the undiluted form to the pigment, or it may be dissolved or suspended in H2O or an organic liquid and added to the pigment.
Patent GB-699811-A (GB)
Title: Improvements in and relating to apparatus for controlling the speed of a movable member
IPC: B66B1/34
Filed: 1950-11-17
Abstract: 699,811. Automatic control speed systems; reciprocating generators. GENERAL ELECTRIC CO., Ltd., and IRVING, H. D. Nov. 16, 1951 [Nov. 17, 1950], No. 28186/50. Classes 35 and 38 (iv). [Also in Group XXXVII] Apparatus for controlling the speed of e.g. a lift comprises an inductive member and a magnet one of which is carried by the lift car and the other fixed whereby relative movement between them produces a control voltage. Each inductor unit comprises a plurality of coils along the path of the magnet and several arrangements are shown to produce various speed patterns or accelerations: (i) the coils may have different numbers of turns, Fig. 1; (ii) the spacing of the coils along the bar may be varied, Fig. 2 (not shown); (iii) electrical shunts may be placed across the coils, Fig. 3 (not shown); (iv) the coils may be on separate cores with different spacings from the path of the magnet, Fig. 4 (not shown); or (v) the coils may be arranged uniformly to give uniform speed, Fig. 5 (not shown). The magnet may be permanent or energized. As shown, the inductor unit 30 is mounted on the side of a lift car 10 so as to pass through the field of a magnet 31. The output of the coils is applied to an amplifier valve 33 energizing a control field 24 of a Ward-Leonard set 15, 16 driving the lift.
Patent GB-854899-A (GB)
Title: A variable electric time switch mechanism
Inventor: JACKSON HAROLD ERNEST
IPC: F16H29/02
Filed: 1956-09-14
Abstract: 854,899. Interrupters. TECALEMIT Ltd. June 12, 1957 [Sept. 14, 1956], No. 28198/56. Class 38 (5). [Also in Group XXIV] An electric motor or clockwork mechanism 5 drives a cam 10 mounted on a shaft 7, so that a lever 23 is pivoted about an axis 12. The latter carries a ratchet wheel 16 with recesses 18 receiving rollers 20, 21 pressed by springs .22 against fixed and movable housings 15, 19, respectively. The lever 23 is carried by the housing 19 and the arrangement is such that during clockwise movement of lever 23, wheel 16 is locked by rollers 20 and the fixed housing, and during the return movement of lever 23 caused by a spring 28, the housing 19 and the wheel are clutched together by rollers 21, so that the wheel is moved one step counterclockwise. A cam 36 is thereby moved to operate an adjustably-mounted snap-action switch 38. The movement of lever 23 is varied by an adjustable stop 30A.
Patent GB-365590-A (GB)
Title: Improvements relating to the actuating diaphragms of reducing valves, thermostatic control devices and the like
IPC: F16J3/02
Filed: 1930-09-22
Abstract: 365,590. Valve components. EYRE, J. R., 23, East Grove, Gipsyville, Hull. Sept. 22, 1930, No. 28226. [Class 135.] In reducing valves, thermostatic control devices and the like a diaphragm 3 of any desired material such as thin asbestos, rubber, copper or steel sheeting is supported between a pair of spiral coiled rings 4, 5 which are clamped at their periphery in the casing of the valve and at their centres upon the diaplaceable spindle. The periphery is shown clamped by the flanges 7, 8 and the centre by a collar 9 and a sleeve 10 on the spindle 1 while the lines of cleavage between the coils on the two rings 4, 5 are shown in staggered relation to one another. Several such diaphragms may be provided.
Patent GB-719143-A (GB)
Title: Screw threads on tubes
Inventor: RUDD DONALD
IPC: B21H3/00
Filed: 1951-12-03
Abstract: 719,143. Pipe joints. DREH PATENTS, Ltd. Dec. 3, 1952 [Dec. 3, 1951], No. 28317/51. Drawings to Specification. Class 99 (1). [Also in Groups V and XXII] Pipe ends to be joined together are screw threaded on the internal and external surfaces and screwed into one another. In joining pipes of the same diameter the end of one pipe is espanded to form a socket before the end is threaded.
Patent GB-730165-A (GB)
Title: Improvements in or relating to magnetic storage devices
Inventor: BOOTH ANDREW DONALD
IPC: G11C19/04
Filed: 1953-10-14
Abstract: 730,165. Non - contact - making relays. BRITISH TABULATING MACHINE CO., Ltd. Oct. 14, 1953, No. 28328/63. Class 40 (4). [Also in Group XIX] In apparatus for transferring or shifting data from a first to a second binary magnetic core storage device employing magnetically remanent cores, a capacitor is charged through a first rectifier by an output pulse produced by the first storage device in switching from one to zero, and discharged in a circuit including a second rectifier and an input coil or coils of the second storage device to switch the latter from zero to one, a bias voltage being applied to the second rectifier to render the discharge circuit ineffective during the charging of the capacitor. In the shifting register shown, each storage device comprises a laminated core 1, 2, 3 ..., of a magnetic material having a rectangular hysteresis loop, having input, output and shift coils such as 6, 7 and 4, and negative shift pulses are applied on line 5 to all the shift coils in series with resistance 11, 13, 14. If, e.g., core 1 is in the one condition when a shift pulse is applied, a capacitor 9 will be charged through a circuit including first rectifier 8 and output coil 7, and the voltage drop produced across resistor 11 prevents discharge of the capacitor through second rectifier 10 and input coil 12 of core 2 until the shift pulse ceases. The transfer circuits between the higher cores are similarly controlled by biasing voltages produced across 13, 14 ..., or, alternatively, a single resistor may be used for all stages. In a modification (Fig. 2, not shown) each storage device comprises two cores connected in a balanced circuit as described in Specification 706,736.