baber/WOPTO huggingface dataset:
Patent GB-969584-A (GB)
Title: Improvements in packaging articles in thermoplastic material
IPC: B65D71/00
Filed: 1962-07-20
Abstract: 969,584. Packaging. W. R. GRACE & CO. July 20, 1962 [July 24, 1961], No. 28068/62. Heading B8C. Articles are wrapped in heat shrinkable film by folding the film round them with an overlap and extending free portions, and heat shrinking by a stream of hot air, the free portions and the film as a whole with consequent sealing together of overlapped portions. Groups of articles such as fruit may be placed on film 22 supported on a rectangular frame 21, pressed into the frame and the film folded round them. Heat is applied causing the protruding tubular ends to coalesce and the overlay to seal where stretched over the articles during shrinkage, apertures being left at either end which permit ventilation. Cans on a single cylindrical article may be similarly wrapped. Articles such as lettuces may be bunch wrapped by the method, Fig. 7. Suitable films are produced by irradiating and biaxially orientating polyethylene of average molecular weight 20,000. Other materials such as polyvinyl compounds, polypropylene polyesters, polyethylene tetraphthalate may be used. The irradiating methods described in Specifications 866,819 and 866,820 may be employed.
Patent GB-301064-A (GB)
Title: Improvements in or relating to cooling beds for rolling mills
IPC: B21B43/00
Filed: 1928-10-01
Abstract: 301,064. Krupp Grusonwerk Akt.- Ges., F. Nov. 24, 1927. Rolling.-The shiiter-bars 6 of the delivery bed 4 are supported on and actuated by extensions of the shifter-bars 2 of the cooling-bed 3. In the rear position of the bars 2 shown in Fig. 1, lugs 13 on the bars 6 are held against pins 2<1> on the bars 2 by weighted bell cranks 7<1>. On the forward stroke, whilst the shifters hold the rolled bars clear of the beds, the two shifters move together until the lugs 13<1> srike adjustable abutments 12. The pins 2<1> then leave the lugs 13 and the shifters 6 partake only of the vertical component of motion. The rolled bars are thus spaced a smaller distance apart on the delivery bed than on the cooling-bed. The bell cranks may be replaced by a. positively acting device.
Patent GB-424795-A (GB)
Title: Improvements in or relating to electromagnetic relays
IPC: H01H50/34
Filed: 1933-10-12
Abstract: 424,795. Electromagnets. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and ROSE, W. R., c/o General Electric Co., Stoke, Coventry. Oct. 12, 1933, No. 28162. [Class 35] [See also Group XXXVII] In an electromagnetic relay preferably of the telephone type, a portion of the armature or a member of magnetic material fixed thereto and directly attracted by the core is movable relatively to the armature for the purpose of varying the air gap between the armature and the part of the magnetic circuit of the relay towards which it is attracted on energisation, the armature being provided with a non- magnetic residual pin or pins of a predetermined size. As shown in the Figure the armature 7 carries non-magnetic pins 8 adapted on attraction to contact with the end of the core 3 to limits its inward movement. A magnetic disc 7 is screwed into the armature opposite the end of the core and is adapted on being rotated by a suitable tool to vary the air gap between the armature and the core end, the pins 8 at the same time ensuring that the travel of the armature is not affected by such variation of air gap. The magnetic member 7 may be retained in its adjusted position by the springy action of the bifurcated ends 9 of the armature or separate spring-detent locking devices, Figs. 2 and 3, (not shown), may be provided for this purpose.
Patent GB-438992-A (GB)
Title: Improvements in and relating to alternators
IPC: H02K11/00
Filed: 1934-10-02
Abstract: 438,992. Insulation for dynamo-electric machines. PARSONS & CO., Ltd., C. A., and HORSLEY, W. D., Heaton Works, Newcastle-on-Tyne. Oct. 2, 1934, No. 28219. [Class 35] An alternator with the neutral point of the stator windings insulated or earthed through a resistance or reactance has the stator core or the whole frame insulated from earth. The insulated stator core, and if desired the winding supports, may be maintained at a potential between that of the windings and earth for example by connecting them to the neutral point or to an intermediate point on the earthing resistance. In the form shown in Fig. 9, the laminae h are supported on bolts i having insulating sleeves and the core end supports k are separated from the casing m by insulation n. In the form shown in Fig. 12, particularly adapted for annular laminae, the laminae h are centred by bars o from which they are separated by insulation r. In another form the frame is separated from the foundation and from the air ducts by insulation or it may be constructed of insulating material. Specification 217,320, [Class 35], is referred to.
Patent GB-197889-A (GB)
Title: A new or improved saggar shord or support for use in the manufacture of saggars employed in the firing of pottery and the like articles
IPC: F27D5/00
Filed: 1922-10-18
Abstract: 197,889. Jackson, S. R., Jackson, A. E., and Jackson, T. D. Oct. 18, 1922. Saggers. - A sagger shord or support is cast in aluminium or aluminium alloy Fig. 2 shows a shord a of the usual shape and having holes a<1> countersunk from the under side in the known manner.
Patent GB-617141-A (GB)
Title: Multichannel electric pulse communication systems
IPC: H04J3/00
Filed: 1946-09-20
Abstract: 617,141. Pulse multiplex signalling; pulse generating circuits. STANDARD TELEPHONES & CABLES, Ltd. Sept. 20, 1946. No. 28305. Convention date, Sept. 29, 1945. [Classes 40 (v) and 40 (vi)] In a multi-channel pulse system each pulse has stepped leading and trailing edges, thereby producing superimposed portions of different widths, and a characteristic of each portion is modulated in accordance with a corresponding signal. Further multiplexing by interlaced pulse trains may be introduced. In one embodiment a base wave generator 1, Fig. 1, feeds a triangular wave 2, Fig. 2, to modulator clippers 5 ... 8 fed by channel signals over lines 9... 12 respectively. The signals from channel a fed to transformer 16 shift the constant width clipping levels 14 between limits 15, the width and the limits being determined by biassing resistances 17, 18 associated with the double diode clipper 13. The limits are different for the four channels and produce the duration modulated pulses 19, 23, 24, 27. The pulses 27 for channel d are differentiated and clipped in circuit 29 to produce phase modulated pulses 35, which may be delayed by circuit 36a to centre them with respect to pulses 19 of channel a, all the channel pulses being mixed in circuit 22 to produce the composite stepped pulses 39 for transmission. At the receiver the channel pulse elements are separated by double clippers 47 ... 50, set to operate between appropriate levels by resistances 56, 57 in the case of circuit 47, followed by pulse duration demodulators 58, 59, 60 in the case of channels a, b, c and pulse time demodulator 76 in the case of channel d. In a second embodiment, Figs. 6 ... 9 (not shown), the elements of the composite stepped pulses are modulated in time position and not duration by supplying a base sine wave to individual cusper modulators, followed by double clippers. In another embodiment the leading and trailing edges of the elements of the pulses are both modulated in time by different channel signals so that a two-stepped pulse carries four channels, Figs. 10 ... 15 (not shown). Further multiplexing may be introduced by interlacing a plurality of trains of composite pulses, Figs. 16, 17 (not shown), and a synchronizing wave may be derived at the receiver by feeding the composite wave train to a high Q circuit tuned to the combined pulse recurrence frequency, Figs. 18, 19 (not shown). Alternatively a special narrow unmodulated synchronizing pulse may be transmitted between the channel sequences, Figs. 20, 21, 22 (not shown), and separated at the receiver by a pulse width discriminator. Specification 596,702 is referred to.
Patent GB-242990-A (GB)
Title: Process for preparing calcium nitrate capable of being strewn
IPC: C05C5/00
Filed: 1925-11-11
Abstract: Calcium nitrate which does not readily become moist is obtained by adding a small proportion such as 0.1 per cent of calcium nitrate crystals to a quantity of practically anhydrous calcium nitrate at a temperature below the melting point of the crystals.  The Specification as open to inspection under Sect. 91 (3) (a) contains an example in which a 75 per cent solution of calcium nitrate is dehydrated almost completely in a calcining apparatus and is then fed to a cooling apparatus also acting as a mixer.  A small proportion of calcium nitrate crystals is added in the cooling apparatus at a point where the product has become cold; and becomes mixed with the whole charge.  This subject-matter does not appear in the Specification as accepted.
Patent GB-248075-A (GB)
Title: Improvements in a paper cup forming machine with stacking attachment
Filed: 1924-11-27
Abstract: 248,075. Rogers, F. H., (Vortex Mfg. Co.). Nov. 27, 1924. Paper bags and the like, making.-Relates to a machine for making formed paper caps and for delivering them in nested condition. Prepared cup blanks of the form described in Specification 222,203, are delivered singly from the bottom of a magazine 5, Fig. 1, on to a stationary table 18, Fig. 5, where glue is applied by a pad 77, Fig. 6, to that part of the undersurface of the blank which lies over an opening in the table. The glue is contained in a box 7, Fig. 3, and is removed by a driver roller 8 co-operating with an adjustable roller 10 which serves to spread the. glue and also to distribute evenly any " fuzz " from the paper blanks. The glued blank is transferred to bars 25 overlying a table 16 reciprocated by means of a lever 15. As table 16 moves outwardly, stops 21 engage the blank and push it on to fingers 20, 20<a>, and pins 22, on the table " head " 19, the blank meanwhile passing beneath a spring arm 40 and being engaged by auxiliary fingers 53, 54 on a spring arm 41, Fig. 5. Centring is effected by arm 40 frictionally engaging the blank to pull it backwardly against the stops 21, as the table 16 advances, a spring finger 81, Fig. 6, engaging the advance edge of the blank. The blank is now advanced between the rotating cup-forming dies 3, 4, and the presser die 4 moved downwardly to form the main part of the cup, the glued part of the blank being wrapped around to reinforce the body. The die 4 rising, the completed cup is removed from the forming die 3 by suitable means, such as an air blast, and is guided by a member 76, Fig. 7, through a path leading to a curved shoot 49. To overcome the tendency of the cup to rebound from the stack and spring open, a pusher head 73, Fig. 7, operated from lever 15, is provided. The pusher head is normally pulled out of the path of the discharged cups by spring means acting on the arm 70, but comes into operation immediately after delivery of a cup. Cups passing through the shoot are collected in tubes or cans in the manner described in Specification 227,519.
Patent GB-393464-A (GB)
Title: Improvements in or relating to trigger mechanism for machine guns
IPC: F41A19/08
Filed: 1932-10-13
Abstract: 393,464. Machine guns. AKTIESELSKABET DANSK REKYLRIFFEL SYNDIKAT, Aarhusgade, Copenhagen. Oct. 13, 1932, No. 28540. Convention date, March 5. [Class 92 (ii).] Relates to machine guns comprising a " recoil " arm 16, Fig. 1, controlling the breech mechanism and a firing hammer 14 cooperating with a sear 9, 12 adapted to be pulled by a pawl 7, 10 pivoted at 6 to a trigger 2 rocked about its pivot 3 by an external mechanism 4, such as a gear synchronized with the propeller of an aircraft, a cam 17 being provided on the hub of the recoil arm 16 to hold the pawl 7 out of action unless the breech is closed. According to the invention, a spring- loaded pawl 19, 20 is provided to hold the recoil arm in the breech-open position unless this pawl is pulled by a Bowden-wire or like mechanism 30, Fig. 3. By means of this device the firing can be started and stopped without stopping the synchronized gear, and when firing is stopped the breech is held in the open position. Preferably the synchronized gear is also stopped, in which case the mechanism 28, Fig. 3, for doing this is coupled directly to a pedal 25, whereas the mechanism 30 is coupled by a slot 32 to a pin 31 on the pedal 25. This lost-motion connection ensures that the last loaded cartridge is always fired and the breech then held back in the open position.
Patent GB-841858-A (GB)
Title: Improvements relating to scissors
IPC: B26B13/06
Filed: 1956-09-19
Abstract: 841,858. Scissors. HENCKELS ZWILLINGSWERK A. G., J. A. Sep. 19, 1956 [Oct. 12, 1955], No. 28621/56. Class 30 Co-operating ribs 8, 8<SP>1</SP> formed on the pivot mounting section of scissor blades,3, 4 cross each other as the scissors are closed and ensure contact of the cutting edges 9, 9<SP>1</SP>. The ribs are formed in the grinding operation producing the hollow ground blades and are preferably arcuate extending from the non-cutting edge of each blade.
Patent GB-797898-A (GB)
Title: Improved method and device for stringing a continuously moving thread on a stretching roller
IPC: D02J1/22
Filed: 1955-10-07
Abstract: 797,898. Method of threading a stretchtwisting machine. NAAMLOOZE VENNOOTSCHAP ONDERZOEKINGSINSTITUUT RESEARCH. Oct. 7, 1955 [Jan. 7, 1955], No. 28665/55. Class 120(2) In a method for stringing a continuously moving thread 3 on a rotating stretching roller 2, the thread 3 is at first kept out of contact with the surface of the roller 2 by means of an auxiliary thread guiding arrangement 10, 11 co-operating with the roller 2. The thread 3 is strung once or several times round the roller 2, the windings being kept out of contact with the roller 2 by the device 10, 11, 8, at least part 11 of this device being adapted to swing away by exercising an increased pull on the thread 3, so that it slides off the portion 11. The force required to swing away the part 11 may be supplied by bringing the thread into contact with the surface of the roller 2. U.S.A. Specification 2,491,569 is referred to.
Patent GB-1176303-A (GB)
Title: Vehicle Conveyor
Inventor: BRAKEL RUSSELL A VAN
IPC: B61B10/04
Filed: 1968-06-17
Abstract: 1,176,303. Vehicle conveying assembly. HAVERBERG AUTO LAUNDRY EQUIPMENT CO. Inc. 17 June, 1968, No. 28665/68. Heading B7L. A conveyer assembly, for use in a vehicle washing plant, comprises a first endless chain conveyer 10 with projecting lugs 26 which at position 14 are adapted to collect a vehicle pusher 12, transport it along a top run 1O and release it at position 16 along a bottom run 10b, there being a second endless conveyer 18 with dogs 38 which returns the pushers from position 18 to a stacking position 19 from which they are released to position 14. Each pusher comprises a carriage 60, a roller 80 cantilevered from the carriage and adapted to engage a vehicle wheel, and vertical and horizontal bearing wheels 62, 64, 66, 68 and 70 which guide the pusher in tracks 56 along the run 10a and in tracks 51, 53 along the lower run 10b in the inverted position. End guideways 58 retain the pushers as they are inverted. Lugs 26 engage a face on axles 72 of the carriages and lugs 38 on pivoted latches 82 which hang vertically on the run 10b. The conveyer 10 is run continuously and the conveyer 18 only run when it is required to move a pusher between the position 16 and 19 or 19 and 14. A switch in the vehicle path actuates the conveyer 18 after a predetermined time interval. The safety switch is responsive to the approach of a pusher and also to the operation of the conveyers to prevent jamming of a pusher with conveyer 10 at position 14. Parking switch 104 de-activates conveyer 18 when a pusher is at position 19 until a vehicle approaches. Switch 106 de-activates the conveyer 18 until a lug 26 of conveyer 10 has engaged a pusher at position 14.
Patent GB-1035532-A (GB)
Title: Improvements in or relating to scarifiers
Inventor: SPRIGGS ERNEST JOHN
IPC: E01C23/12
Filed: 1961-08-09
Abstract: 1,035,532. Road scarifiers. EDDISON PLANT Ltd. Nov. 8, 1962 [Aug. 9, 1961], No. 28710/61. Heading E1G. In a scarifier active holder 8, comprising a yoke 11 carrying sheaths 9 in which tines 10 are releasably secured by means of wedges 13 and keys 14, Fig. 1 (not shown), is longitudinally adjustable within a casing 1. A threaded shaft 2 fixed axially relative to the casing but rotatable by means of a chainwheel 4 carries a nut 17 apertured at 18 to receive the ends 10b of the tines. Springs 16 surrounding the tines bear against the yoke 11 at one end and the nut 17 at the other. Rotation of the shaft 2 causes the nut to move along it and, through the springs 16 to force the tine holder to move axially of the casing. To release a tine the holder is moved to the position shown in Fig. 1 and a lever 22 is pivoted to a lug 20 on the casing 1 adjacent its end 22b which is inserted as shown in broken line and used to remove the key 14. The other end 22a is used to drive in the key when a tine is inserted.
Patent GB-360584-A (GB)
Title: Improvements in or relating to friction pivot joints
IPC: E05D7/08
Filed: 1930-09-26
Abstract: 360,584. Pivots. INGRAM, J. H., 17, Hallett's Row, Little Brickkiln Street, Wolverhampton. Sept. 26, 1930, No. 28814. [Class 65 (ii), A pivot for windows and the like comprises a trunnion 1 working in a socket formed of two parts 4, 6 which are fixed together by screws 9 ; the part 4 is integral with a fixing plate. The socket parts have inserts 10 of frictional material, which press against the trunnion when the screws 9 are tightened to hold the window in any position.
Patent GB-1066356-A (GB)
Title: Apparatus for producing a tobacco mixture
IPC: A24B3/08
Filed: 1964-07-13
Abstract: 1,066,356. Feeding tobacco. F. MOSS (K. Korber). July 13, 1964, No. 28834/64. Heading A2C. A tobacco mixture is produced by mixing cut natural tobacco with a tobacco foil strip of a width similar to that of the cut natural tobacco particles. As shown in Fig. 1 a strip of tobacco foil 19 is fed from a reel 17 between cutters 11, 12 which cut it into a plurality of narrow strips 20. The strips 20 are fed through a rotary funnel 5 and emerge as a coil 21. The spaces in the coils are filled by natural tobacco 22 to form a continuous rod 23. In a second embodiment (Fig. 2, not shown) the natural tobacco may be blown into the funnel 5 so that a complete rod emerges. A paper wrapping strip may be provided above the conveyer belt 2.
Patent GB-785736-A (GB)
Title: Improvements in or relating to straight bar knitting machines
Inventor: LOIMANN ANTON
IPC: D04B15/06
Filed: 1955-10-10
Abstract: 785,736. Knitting-machines. ARWAFEINSTRUMPFWIRKEREI GES. Oct. 10, 1955, No. 28838/55. Class 74 (2). The butts of the jack sinkers or dividing sinkers or both carry a projection 5, Fig. 2, or are sufficiently enlarged to ensure overlapping during the whole of their relative movements, Fig. 1, so that the butts of adjacent sinkers are guided and prevented from getting in each other's path.
Patent GB-1373293-A (GB)
Title: Electrodeposition of tin
IPC: C25D3/32
Filed: 1972-06-20
Abstract: 1373293 Acid tin electro-plating baths M & T CHEMICALS Inc 20 June 1972 [1 July 1971] 28849/72 Heading C7B [Also in Division C2]  Primary brighteners for acid tin-plating baths comprise the dione/aldehyde condensation products of hexan -2,5-dione and an aldehyde selected from 5-membered heterocyclic ring aldehydes (e.g. furfural), 6-membered homocyclic ring aldehydes (e.g. benzaldehyde) and condensed aromatic ring aldehydes. Specified bath compositions comprise stannous ions, sulphate ions, glacial acrylic acid and at least one non-ionic, water-soluble alkoxylated wetting agent in addition to the present primary brighteners.
Patent GB-226518-A (GB)
Title: Improvements in or relating to the manufacture of sulphuric acid by the contact process
IPC: C01B17/765
Filed: 1924-12-02
Abstract: 226,518. General Chemical Co., (Assignees of Clark, C. B.). Dec. 21, 1923, [Convention date]. Sulphur trioxide, catalytic production of.-The contact process for the manufacture of sulphur trioxide is conducted in two or more stages with intermediate absorption of the product and utilization of the heat of the reaction gases prior to the first conversion for effecting a later conversion. The gases from a sulphur burner 1 and combustion chamber 2 interact in a converter or series of converters 4; the reaction gases are cooled and the sulphur trioxide formed is removed by the absorber 6 and filter 7; the residual gases, which still contain up to 30 per cent of the initial amount of sulphur dioxide, are forced by the blower 8 through another converter 9, after their temperature has been raised by passage through the heat-interchangers 5, 3; the product is removed by the absorber 10. Additional air may be introduced at the points x. If the converter 4 is built in more than one part, as is preferably the case when the gas mixture contains 12 per cent or more of sulphur dioxide, heat-interchangers may be located between the parts; the waste heat from the converter 9 may also be utilized in a preceding stage of the process. The blower 8 may be placed in front of the burner 1.
Patent GB-813605-A (GB)
Title: Improvements in photographic materials and in light-sensitive polymeric compounds therefor
IPC: G03F7/038
Filed: 1955-10-11
Abstract: Light-sensitive partial esters of cinnamic acid and polyvinyl alcohol containing from 22 to 40 mol. per cent of recurrent units <FORM:0813605/IV (a)/1> where R represents a monocyclic aryl group of the benzene series, e.g. phenyl, m-nitrophenyl, o-chlorophenyl or p-methoxyphenyl, and 78 to 60 mol. per cent of recurrent units <FORM:0813605/IV (a)/2> where R1 represents a hydrocarbon residue of 1 to 6 carbon atoms of an organic acid which residues may contain a free carboxyl group such as alkyl, methyl to hexyl as in acetic acid to heptylic acid, aryl as in benzoic and phthalic acid or alkylene as in the succinic half ester of vinyl alcohol, are prepared (1) by partially acylating polyvinyl alcohol with a cinnamic acid halide, e.g. cinnamic acid chloride and o-chloro, m-nitro, o-cyano, and p-methoxy cinnamic acid chlorides and acylating the residual hydroxyl groups with a different acid halide or anhydride, (2) acylating polyvinyl alcohol with acid halide or anhydride other than cinnamic acid and then acylating with the cinnamoylating agent, or (3) partially de-esterifying a polymeric vinyl ester and then re-esterifying with the second acyl halide or anhydride.  The reactions are performed by heating a pyridine solution of the compounds and the products are precipitated after the addition of acetone with water.  A composition of the partial esters with a light-sensitizing agent, e.g. 1 - methyl - 2 - benzoylmethylene-b -naphthothiazoline and others as described in Specifications 713,947, 717,708, 717,710, 717,711, 717,712 and 743,455, dissolved in toluene and chlorobenzene may be coated on a support for use as a lithographic printing plate, as described in Specification 717,710. Specifications 695,197, [Group XX], 695,262 and 717,709 also are referred to.
Patent GB-881322-A (GB)
Title: An improved electric floor polishing machine
Inventor: FABER ERNST
IPC: A47L11/16
Filed: 1960-08-20
Abstract: 881,322. Floor polishing machines. FABER, E., HAHN, R. D., HAHN, H., and WORWAG, E., (trading as MAUZ & PFEIFFER). Aug. 20, 1960, No. 28899/60. Class 138 (1). The brush 3 of a floor polishing machine is secured to a pulley 2 rotated by a horizontal electric motor 1 through a belt 6 passing over a pulley 5 on the motor shaft and two guide pulleys 7. The belt 6 has a width approximately half the length of the pulley 5 and makes contact with approximately half the circumference of the latter. Alternatively the machine may comprise a plurality of brushes.