baber/WOPTO huggingface dataset:
Patent GB-516372-A (GB)
Title: Improvements in or relating to bedsteads
IPC: A61G7/05
Filed: 1938-06-23
Abstract: 516,372. Furniture moving. WHITFIELDS BEDSTEADS, Ltd., WHITFIELD, C. G., and ADAMS, E. June 23, 1938, No. 18693. [Class 52 (i)] In bedsteads of the kind which are alternatively supported on feet or.on castors or wheels the castors or feet are carried by vertical posts which are movable axially by worm and toothed gearing with connecting links. As shown the vertical post 8 is connected by links 9 to a toothed sector 10 pivoted in a casing 3 and engaging with a worm wheel 11 mounted on a horizontal shaft 12 provided with a handle 14. The foot end of the bedstead, as shown, is provided with fixed feet 2 and a supporting tube 5 serves as a guide for the vertical post 8.
Patent GB-702375-A (GB)
Title: Improvements in counting and control mechanisms for devices for testing fuel injection
IPC: F02M65/00
Filed: 1952-07-24
Abstract: 702,375. Testing physical qualities of materials. BOSCH. GES, R. July 24, 1952 [July 27, 1951], No. 18709/52. Classes 106 (1) and 106 (2) [Also in Group XXIV) A fuel injection pump 5 is tested for output over a predetermined number of cycles by a control and counting apparatus arranged to operate a deflector 49 in the path of the output oil after the required number of cycles has been completed. The apparatus comprises a gear box 6 through which the main drive shaft 4 to the pump passes. A 2:1 reduction gear 8, 9 drives a shaft 10, Fig. 3, having teeth 11 cut in it. A toothed wheel 22 is meshed with the teeth 11 in its operative position and is driven with a reduction ratio of 50:1 making a total reduction of 100:1 from the main drive shaft. A pin 29 actuates a second toothed wheel 27 one tooth pitch for each revolution of the wheel 22. A further 1:1 ratio gear drive moves the shaft 32 and dial indicator 35, so that a predetermined number of revolutions of the wheel 22 may be preset by means of the pointer 36 and scale 35. The gear 22 is retained in mesh with the teeth 11 against a return spring 20 by a pin 38 which engages in an annular slot 40 via a radial slot 39 when the operating lever 18 is depressed moving the bar 19 and wheel 22 to its lower (operative) position. When the wheel 22 has completed one complete revolution the bar 19 is free to move upwards disengaging the teeth 23 from the teeth 11, except that the pin 24 must also engage a radial groove 29 in the wheel 27 which it does when the predetermined number of revolutions of the wheel 22 have been completed. When this point is reached both pins 38 and 24 are aligned with their respective radial slots at the same time, and the bar 19 is free to move upwards under the influence of the spring 20 disengaging the wheel 22 from the teeth 11 and also actuating the deflector 49 through the medium of a coupling rod 45.
Patent GB-588719-A (GB)
Title: Improvements in or relating to machines for filling containers with liquids
IPC: B67C3/26
Filed: 1944-09-30
Abstract: 588,719. Bottling. BRATBY & HINCHLIFFE, Ltd., and CLARKE, L. Sept. 30, 1944, No. 18762. [Class 125 (ii)] A machine for filling containers with liquid comprises mechanical means in a filling tank, acting positively on two valves provided on a displaceable member through which a container is filled, so as to keep the valves positively closed whilst the member is in its initial position and to close them positively by the return movement of the member to its initial position. A filling member 7 slides through a gland 6 in a plug 1 in the bottom of a filling tank 2, and through a longitudinally split tube 3. A gas or air valve 15, 22 at the top of the filling member is controlled by a lever 20 pivoted to the member and communicates with a container 10 to be filled, by a tube 12 running through the member 7. A liquid filling valve 18, 36 is controlled by a second pivoted lever 34 and communicates with the container by an annular passage 16. As the filling member 7 is raised by the container, against spring action, a cam surface 24 on the lever 20 slides off a roller 25 to release the valve 15, 22, which is then positively opened by a roller 29 acting on a cam surface 30, the extent of opening being limited by a stop 31. Further upward movement of the member 7 causes a cam surface 38 on the lever 34 to ride off a roller 39, whereupon a spring 42 opens the valve 18, 36 until that part of the lever 34 below the surface 38 abuts against the roller 39. The lever 20 is so formed and pivoted that gravity and/or a light spring tends to keep the valve 15, 22 open ; but the valve will be closed by the surge of gas or air which occurs if a container bursts or has a chipped neck : similarly, the pressure of the spring 42 is light enough to allow the accompanying surge of liquid to close the liquid filling valve. A snift valve 45, which ascends and descends with the member 7, is kept shut by the spring 47 whenever the other valves are open, and at other times it is opened by a cam surface 49. It is stated in the Provisional Specification that the filling member has two parts of externally increased diameter which slide in and out guided by the tube; and that the member carrying the cam surface 49 may serve as a vertical guide for an internally conical containercentring piece.
Patent GB-410340-A (GB)
Title: Improvements in and relating to apparatus for producing pulsations in alternating current
IPC: H05B39/09
Filed: 1933-07-03
Abstract: 410,340. Supply systems for consuming devices. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.- (Assignees of Suits, C. G. ; 1740, Union Street, Schenectady, New York, U.S.A.) July 3, 1933, No. 18839. Convention date, July 1, 1932. [Class 38 (iv).] A load circuit 2 connected to an A.C. supply 1 through the A.C. winding 4 of a saturable reactor 4, 5 is supplied with pulsating A.C. by energizing the saturating winding 5 of the reactor 4, 5 from a rectifier connected across one element, e.g., the condenser 8 of a circuit comprising capacity and a saturable reactor 9 connected in series across the A.C. supply. The saturating winding 10 of the reactor 9 is connected to the A.C. supply through a rectifier. The circuit 7 falls into and out of resonance with the frequency of the supply as the current through it saturates and de-saturates the choke 9 and the pulsating voltage across the condenser 8 is made to control the impedance of the reactor 4 to produce pulsations in the voltage applied to the load 2. The frequency of the pulsations is determined by the circuit constants.
Patent GB-947639-A (GB)
Title: Process for the manufacture of flat structures from vinyl polymers
IPC: C09D129/12
Filed: 1960-05-27
Abstract: Films or coatings are produced by drying on a support an aqueous solution of an addition product of sulphurous acid with polyacrolein or an acrolein copolymer which solution also contains up to 25% by weight of a water-soluble, linear, aliphatic polyether having an average molecular weight of more than 3000, the terminal groups of which advantageously consist of hydroxyl or mercapto groups capable of reacting with aldehyde groups.  The copolymer may be a copolymer of acrolein with acrylonitrile, methyl acrylate or an N-alkyl acrylamide and the polyether may be polyethylene oxide, a copolymer of ethylene oxide with propylene oxide, or a polyether obtained by the chain extension of a polyglycol ether of medium molecular weight with the use of known chain extending agents such as polyvalent isocyanates, acid chlorides, azlactones or acylene - bis - lactams. Specifications 901,897 and 947,638 are referred to.
Patent GB-187024-A (GB)
Title: Improvements in or relating to gear cutting machines
IPC: B23F1/04
Filed: 1921-07-13
Abstract: 187,024. Matterson, W. C. M. July 13, 1921. Gear-cutting. - Spur or helical gears may be generated on a shaping machine by means of an attachment comprising a headstock 1 carrying a hollow blanksupporting spindle 2 with worm dividing-gear 3 connected through change wheels and chain gearing to a pinion 6 on the cross-feed screw 7 of the table so that a combined tangential and rotary movement is imparted to the blank with respect to the rack tooth cutter 11.
Patent GB-762419-A (GB)
Title: Improvements in or relating to heat transfer apparatus of the rotary regenerative type
IPC: F28G9/00
Filed: 1954-06-29
Abstract: 762,419. Thermal regenerators. SVENSKA ROTOR MASKINER AKTIEBOLAG. June 29, 1954 [June 29, 1953], No. 18985/54. Class 64(1) A thermal regenerator having a rotor 12 carrying heat transfer material alternatively through a stream of'heating gas and a stream of air to be heated' is provided with a cleaning device comprising a pivotally mounted arm 24 having an end thereof free to move across an end face of the rotor, a timing device periodically interrupting movement of the cleaning device and means responsive to movement of the cleaning device for regulating the rotational speed of the rotor. Preferably the rotor is driven by a motor 36 (Fig. 2) the speed of which is regulated by the timing device 32 in response to movement of the cleaning device. The arrangement is such that during cleaning, as the arm 24 moves across the rotor end face, the rotor speed is changed, e.g. as indicated for zones 1, 2 and 3 in Fig. 1, so that the heat transfer elements all receive uniform cleaning treatment irrespective of their radial distance from the rotor axis. In the form shown the rotor driving motor 36 is operated by compressed air. Cleaning-fluid dispensing means are provided at the free end of the arm 24 which pivots on a hub 30 rotated by a motor 25 during the cleaning operation. The motor 25 is operated through a starter 27 by the timing device 32. As the hub 30 rotates, cams A and B operate switches 1, 2 and 3 in succession. Each switch, when open, actuates an associated time switch T1, T2 or T3 in the device 32 which turn controls the appropriate air valve 33, 34 or 35 determining the correct speed of the motor 36 and hence of the rotor 12 and also causes an intermittent movement of the arm across the rotor end face. When the cleaning operation is complete by movement of the arm 24 over the rotor zones 1, 2 and 3 the selector switch 42 is moved to the "hand" position which causes the motor 25 to rotate the hub 30 to return the arm 30 to its original position with cam A adjacent to switch 1. Normal working is resumed by moving switch 42 to the off position and operating a switch 50 which opens an air valve 48 allowing a full air flow to the rotor driving motor 36. An air by-pass 29A normally remains closed by a solenoid-operated valve 46 but on a power failure the valve opens to allow full air flow to the air motor 36.
Patent GB-905257-A (GB)
Title: Improvements in or relating to paper-making machines
Inventor: DUNLAP HAROLD EMANUEL
IPC: D21F1/48
Filed: 1960-05-30
Abstract: 905,257. Fourdrinier paper-making machines. LODDING ENGINEERING CORPORATION. May 30, 1960, No. 19027/60. Class 96. White water is scraped from the under-surface of the wire cloth F of a Fourdrinier papermaking machine by doctor blades 48, e.g. of a vinyl plastic, mounted on metal strips 40 extending across the machine, between the shake rails 10, either continuously or as overlapping portions. The strips 40 and blades 48 may be bowed by screw-pressure exerted from the shake rails and the strips may be clamped together to form a grid by bolts 58 and spacers 62, 64. White water falls through the grid to a drainage surface 54.
Patent GB-190575-A (GB)
Abstract: 190,575. Barrett, A. G., and Burton, H. H. Oct. 14, 1921. Belt fastenings.- Relates to fastenings for motor cycle &c. driving belts of the kind comprising a connecting link carrying at each end rollers which a.re inserted through the enlarged parts of keyhole slots formed in U-shaped members attached to the belt ends, and consists in forming the connecting link c by positioning rollers d with intermediate parts of reduced diameter transversely within the ends of an endless steel or other metal loop which is then pressed to engage rollers. As shown in Fig. 4, U-shaped belt end members A, formed with keyhole slots b are connected by the link c, the enlarged parts of the keyhole slots being covered by spring steel strips m mounted on the belt attachment screws n. The roller ends are enclosed by channel shaped members f, Fig. 4<a> with top and bottom lugs g engaging slots h in the U- shaped members and side walls f<1> to which are attached by pins j<1>, strips j of leather, fibre, soft metal, &c., substantially as described in Specification 145,394. Behind the plates f are positioned rear plates k with lugs l also engaging the slots h. The chambers in which the connecting link ends are thus disposed may be filled with grease.
Patent GB-260660-A (GB)
Title: Improvements in or connected with electric terminals
IPC: H01R11/22
Filed: 1925-07-29
Abstract: 260,660. Lee, H. J. July 29, 1925. Binding-posts.-A terminal to which a lead is normally attached is fitted with an insulating member to which the lead may be secured in such a manner that, while the electrical circuit appears to be completed, there is actually no conductive connection between the lead and the terminal. The terminal of the sparking-plug of a motor vehicle may be so constructed to prevent unauthorized use of the vehicle. The insulating member 20 may fit directly upon the stem 11 of the terminal or may be forced on to a bush 33, Fig. 3, and that may have oppositely knurled bands 34, 35, and has a groove 32 to receive the spade terminal 14 of the lead 15 to complete the circuit. When the lead is attached at the upper groove 22 of the insulating member no electrical connection is made. A lower groove 21, Fig. 1, may be formed in the insulation into which the lead may be fitted, the thickness of the flange 24 being such that a spark gap is formed between the lead and the nut 16.
Patent GB-1302781-A (GB)
IPC: G04B19/21
Filed: 1970-04-22
Abstract: 1302781 Indicating apparatus KIENINGER & OBERGFELL 22 April 1970 [30 April 1969 30 Jan 1970] 19245/70 Heading G1J [Also in Division G3] The hour indications of a twenty-four hour digital clock are located on flat surfaces 21 of successive triangular number drums 9 which are brought opposite a viewing window 6, Figs. 1-3, (not shown), as a carrier drum 7 revolves and are also caused to rotate about their own axes 10 in the opposite direction of rotation to the drum 7. All the drums 7, 9 are plastics mouldings and the carrier drum 7 has holes 14 in each of two flanges 11, 12 to receive stub axles 13 on the number drums 9, the flanges 11, 12 being resilient to allow the drums 9 to be sprung into position. The flange 12 rotates within a fixed sleeve 17 which has a gap 24 and a nose 25 in its periphery. The number drums 9 are rotated by 120 degrees as they strike the nose 25 and are accurately aligned by a following bulge 26 in the sleeve 17. The minutes and seconds indications may be similarly arranged. The clock may be an alarm clock.
Patent GB-299084-A (GB)
Title: Apparatus for distillation, rectification or evaporation
IPC: B01D3/00
Filed: 1927-07-20
Abstract: 299,084. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). July 20, 1927. Column n stills and fractional condensation apparatus. -Apparatus for distillation, evaporation, or rectification comprises a vapour duct 4 leading from the distilling vessel 1 and having a tapering end shaped to reverse the direction of flow of the vapour, the constricted mouth 5 of the duct discharging into a reflux chamber 8 and directly into the mouth 6 or a downward extension 7 of the reflux chamber by which the liquefied portion of the distillate is returned to the vessel 1. The apparatus shown is provided with a screw column 12 in the tube 7, a liquid column with a reflux condenser 14 in the upper part of the chamber 8, and a tube 15 for the introduction of measuring instruments.
Patent GB-152808-A (GB)
Title: Improvements relating to variable speed gears
IPC: B60K17/08
Filed: 1919-08-06
Abstract: 152,808. Bromfield, L. Aug. 6, 1919. Variable-speed epicyclic gearing of the kind comprising trains in series, the sun gears b<1>, b<2> - - b7 being secured to a driving-shaft a, Fig. 8, and the internal annulus e<1> of one train carrying the planet gears c<2> of the next, is controlled by a revoluble cam shaft i, or by a sliding cam bar w, Fig. 9. The shaft i carries studs h<1>, h<2> - - - adapted to operate brake levers g', g<2> - - -. The studs, which are spaced farther apart than the levers, are brought into the planes of the levers by the screwing of the end portion j of the shaft i into a supporting frame k. The gearing may be disconnected by pressing a pedal which lifts the frame k against spring action. The driven shaft o is secured to the planet-carrier m of the nearest train, and a clutch p, q may be provided for direct driving. The clutch member p is operated by a cam t upon the shaft i.
Patent GB-943858-A (GB)
Title: Improvements relating to bearings
Inventor: DAVIES DAVID OMRI
IPC: F01D25/18
Filed: 1961-05-29
Abstract: 943,858. Bearings. ROLLS-ROYCE Ltd. May 22, 1962 [May 29, 1961], No. 19354/61. Heading F2A. A shaft bearing arrangement has two chambers 66, 67 sealed against the stub shaft 20 and separated by a sealed lubricant chamber housing the bearing 21, each of the chambers 66, 67 being connected to a discharge outlet 55 (open to the air) via apertures 56, 57, respectively, and the shaft interior, so that when an external fluid pressure differential exists across the bearing 21, fluid leaking into chamber 66 or 67 escapes via the apertures 56, 57 and the outlet 55 without entering the lubricant chamber. The lubricant chamber has walls 32, 42 defining a reservoir 43 to feed lubricant to the bearing 21 via an orifice 47 in an extension 45 of the wall 42, a pipe 44 supplying the reservoir 43 with a single shot of lubricant. The reservoir has an overflow port 46 or ports for lubricant passage to the bearing 21, and is so supplied that the lubricant initially overflows therethrough. The chamber 67 includes walls 26, 27 defining a collector chamber 50 into which lubricant leaking from the lubricant chamber may drain. The walls 26, 27 may be secured to or form part of the shaft. The chamber 50 communicates with the aperture 57 whereby lubricant may drain away therefrom in stationary conditions, operational rotation thereof forcing lubricant centrifugally against its wall 36. The apertures 56, 57 are associated with vent chamber 53 within the shaft 20 communicating with the chambers 66, 67 via stub pipes 62, 63 crossing an annular passage 54 supplied with air to cool the bearing 21. The shaft 20 may be vertically disposed and may carry a compressor and a turbine 15 of a gas turbine engine, e.g. a vertical-lift engine for an aircraft.
Patent GB-1524649-A (GB)
Title: Dicarboxylic acids and dicarboxylic acid esters containing a heterocyclic radical
IPC: C07D235/26
Filed: 1977-05-10
Abstract: 1524649 Heterocyclic polyesters CIBAGEIGY AG 10 May 1977 [12 May 1976] 19495/77 Heading C3R [Also in Division C2] Polyesters are made by reacting diols with novel dicarboxylic acids or esters of formula in which the two R1 radicals independently of one another each denote a hydrogen atom, an alkyl group with 1 to 4 C atoms or a phenyl group, the two R2 radicals independently of one another each denote a hydrogen atom or an alkyl group with 1 to 10 C atoms, the two n's represent identical or different numbers from 2 to 12 and X denotes a N,N-heterocyclic radical of the formula in which R3 and R4 each denote a methyl, ethyl or phenyl group, Y is chlorine or bromine and m is 0-4. Examples describe the manufacture of copolyester by reacting 1 : 4-butanediol, dimethyl terephthalate and (1) 1,3 - di - (3<1>- methoxycarbonyl - n - propyl) - 5,5 - diethylbarbituric acid, (2) 1,3-di-(3<1>-methoxycarbonyln - propyl) - 2,2 - dimethylimidazolidine - 4,5 - dione or (3) 1,3 - di - (3' - methoxycarbonyln-propyl) -benzimidazolone.
Patent GB-180934-A (GB)
Title: A new or improved tool for cutting washers and the like
IPC: B23B51/05
Filed: 1921-07-20
Abstract: 180,934. Whitehead, R. W., and Webb, W. July 20, 1921. Traversing-cutter type for cutting designs.- A tool for cutting washers comprises a tool holder c, driven from a vertical drilling machine by a shank b, having a centre hand adjustable cutter f. A presser-foot l with upstanding legs n engaging holes in the holder c is resiliently pressed by a spring p encircling the centre. Slots r, q in the holder and presser-foot allow the cutter to be adjusted for small diameters.
Patent GB-1420781-A (GB)
Title: Light beam shifting
IPC: G01J1/02
Filed: 1973-04-25
Abstract: 1420781 Light beam shifting device MICROMEDIC SYSTEMS Inc 25 April 1973 [28 April 1972] 19567/73 Heading G2J A device for shifting an incident light beam 102, Fig. 2 to a plurality of offset parallel paths 413, 414, comprises at least two transparent members 401, 402 with parallel front and back faces and mounted crosswise and adjacent to each other so that the planes of the front surfaces form an angle the apex of which extends through all front surfaces, the incident beam being directed into the apex and the mounted members being movable across the beam so that it is refracted into e.g. path 413 or path 414. White light 101, Fig. 1 from source 104 passes through slit 107 on to a grating 201 to form a monochromatic beam 109, 102 passing along the axis 103 of a spectrophotometer through circular hole 202 and a slide 205 containing a central opening 206 and two filters 203, 204 for respectively removing extraneous light e.g. in the red and infra-red or U.V. range. Next in line the crossed markers 401, 402 are carried by a pivoted arm 408 oscillated by eccentric 410 driven by motor 411. The shifted beams alternately pass through collimating lens 415 and one or the other of two flow cuvettes 301, 302 for a standard and a test fluid, the beam focusing at prism 502 on photo-multiplier 501 sending signals via electronic unit 700, to display and control unit 800, while synchronization signal generating means 600 comprising 90 degrees apart magnets 603, 604 on disc 601 on the motor axis which act on coils 605, 606, 180 degrees apart also sends signals to the electronic unit.
Patent GB-1061934-A (GB)
Title: Improvements in or relating to reaction vessels suitable for exothermic chemical reactions
IPC: B01J19/00
Filed: 1964-05-11
Abstract: 1,061,934. Cooled reactor. SIEMENSPLANIAWERKE AKTIENGESELLSCHAFT FUR KOHLEFABRIKATE. May 11, 1964 [May 10, 1963], No. 19590/64. Heading B1X. [Also in Divisions C1 and F4] A reaction chamber for exothermic reactions has a ridged, corrugated or pimpled lining over the major part of its inner surface, such that the total surface area is at least 10% greater than the inner envelope. The lining 1 is of graphite, and the reactor has a water jacket 3, which may be replaced by water sprays. Inlet pipes 7, 8 for chlorine and hydrogen and an oulet for HCl gas are provided.
Patent GB-1601760-A (GB)
Title: Shaped articles and powder metallurgy and method of making the same
IPC: C22C33/02
Filed: 1978-05-15
Abstract: This metallurgical product such as sheet metal, strip, rod or wire, having a composition which makes it difficult to work, for example a steel alloy containing boron or a refractory oxide or a high proportion of carbon, is obtained in a form which is easy to work. It can be converted by hot or cold rolling, drawing and the like, by the following process according to which a container is filled with a powder of the material which is difficult to work. This container is made from the same material but devoid of the embrittling agent (boron, refractory oxide, carbon). This container is compressed with a sufficient pressure to establish a metallurgical bond between the bulk of powder and the wall of the container and the unit obtained is then worked like a billet. The product obtained comprises a core (B) made of brittle material combined with a plating (A) made of a ductile material. The metallurgical bonding takes place along an interface (C). <IMAGE>