baber/WOPTO huggingface dataset:
Patent GB-492597-A (GB)
Title: Improvements in and relating to signboards or signs with removable letters capable of being illuminated
IPC: G09F13/26
Filed: 1937-03-17
Abstract: 492,597. Signs ; discharge lamps. SOC. ANON. FONCIERE INDUSTRIELLE & COMMERCIALE. March 17, 1937, No. 7867. Convention date, March 19, 1936. [Class 3 (ii)) [Also in Group XL] Characters formed by electric discharge or tubular incandescent lamps are supported magnetically on a panel and are illuminated immediately they are applied to the panel. In the embodiment shown, filament lamps T mounted on soft iron plates D, are supported on a panel comprising magnetized bars C connected in pairs to a current supply S, the ends of the lamp filaments being connected to contact blocks engaging the bars. Resistances may be provided in the bar circuits to permit adjustment of the lamp illumination. When discharge lamps are used, their electrodes are connected to the contact blocks through adjustable resistances. In another embodiment in which the characters are formed by discharge lamps and are supported by magnetized plates on a soft iron panel, the lamps are illuminated by the field produced by a high-frequency generator behind the panel. The lamps may consist of fluorescent glass. The Specification as open to inspection under Sect. 91 comprises also arrangements in which the lamps are supported by hooks, plug-andsocket, and other fastening means which also serve to conduct current to the lamps. This subject-matter does not appear in the Specification as accepted.
Patent GB-824160-A (GB)
Title: Automatic sweeping machine with low pressure feed for streets, roads and other driving surfaces
IPC: E01H1/04
Filed: 1958-03-12
Abstract: 824,160. Road sweeping machines. SCHORLING, K. H., [trading as SCHORLING & CO. WAGGONBAU.]. March 12, 1958 [July 26, 1957], No. 7941/58. Class 107 A road sweeping machine has a laterally displaceable rotary cylindrical brush, arranged between the front and rear wheels, which is flanked on each side by gutter brushes arranged in front of the cylindrical brush, the sweepings being conveyed to a rearwardly tiltable container by a suction device, the suction head of which extends across the width of the cylindrical brush and the gutter brushes being rotatable in opposite directions and displaceable as a unit in a transverse direction to enable a gutter on one side or the other of the machine to be swept. As shown, refuse is swept by the counter-rotating gutter brushes 3 and 4 towards the centre of the machine where it strikes the baffle plate 9 and forms as a strip to be picked up by the cylindrical rotary brush 5 Which is covered by a suction hood 6, the refuse is then transferred from the brush 5 to the tiltable container 2 by a suction pipe 7, the suction head 6 of which extends across the width of the brbush 5. The brushes 3, 4 and/or 5 may be displaceable as a unit from one side of the machine to the other and the refuse may be picked up by suction alone by raising the brush 5 to its rest position out of contact with the road surface.
Patent GB-775610-A (GB)
Title: Improvements in envelope structures for electric discharge devices
IPC: H01J5/20
Filed: 1955-03-18
Abstract: 775,610. Thermionic valves. GENERAL ELECTRIC CO. March 18, 1955 [March 19, 1954], No. 8012/55. Class 39(1). An anode 5 fitting in an outer anode member 5a is sealed to a ceramic insulator 3 via a sleeve 18, which is sealed to the anode at 20 and to the insulator at 19, so that differences in expansion of anode and insulator are absorbed by the sleeve. This also serves as the anode terminal, and therefore in order to reduce radio-frequency losses, a more direct path is provided between the anode and the terminal by a member 23, 24. A reentrant portion 28 of this protects the ceramic-tometal seal against direct heat radiation from hot electrodes. Slots 29 allow the member to take up unequal expansion stresses more freely. A space 21 also helps to reduce direct heating of the seal from the anode. The ceramic insulator 3 has a series of grooves on its inner surface, to prevent a continuous coating of metal forming thereon by evaporation from hot electrodes. The invention is shown as applied to a h.f. transmitter of the tetrode type, of which the anode is fluid-cooled, one conduit .8 being shown. Specification 656,724 [Group XXXVI] is referred to.
Patent GB-526334-A (GB)
Title: Improvements in portable oilcans
IPC: F16N3/06
Filed: 1939-03-13
Abstract: 526,334. Lubricating-cans. GAUNT, J. G. (Universal Plastics Corporation). March 13, 1939, No. 8078. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept, 27, 1939.] [Class 66] The body of a lubricating-can is formed from transparent or translucent moulded thermoplastic material such as cellulose acetate or from plastic material such as phenol-formaldehyde resin and is attached to the bottom, of which the outer part at least is of metal, by bending the bottom flange 9 over the thinned lower portion 11 of the body and preferably folding them together as shown in Fig. 4. The central portion of the bottom may also be of plastic material; when it is formed wholly of metal the centre part may be springy and may be formed with grooves 3. The spout 5 is detachably connected, for instance by screw means, to the body portion ; it may be made of metal or of plastic material. In place of a spring bottom the container may be provided with a pump or other device for discharging the contents.
Patent GB-1506174-A (GB)
Title: Ultrasonic generators
IPC: B06B1/02
Filed: 1975-02-26
Abstract: 1506174 Transistor circuits MECASONIC SA 26 Feb 1975 [2 May 1974] 8120/75 Heading H3T In a circuit for energizing an ultrasonic transducer C1, a transformer T having a secondary winding T1<SP>1</SP> in series with a compensating inductor L is connected across terminals for the transducer Cl. A pair of feedback windings F 1 (coupled to L) and F2 (coupled to T) are provided for feedback to an oscillator which drives the amplifier so that the power output is increased as a function of the load impedance. The transducer T 1 may be electrostrictive or magnetostrictive and may be used for ultrasonic welding, machining or cleaning. A further winding T2' may be included connected as shown. The sum of inductor L and the inductance of winding T1<SP>1</SP> may be arranged to resonate with the capacitance of the transducer Cl at the oscillator frequency. The sum of the inductive reactances may be equal to the sum of the capacitive reactances and equal to the nominal mechanical impedance of the transducer Cl.
Patent GB-1406179-A (GB)
Title: Apparatus for playing a competitive solitaire-snooker game for two or more players
IPC: A63F9/06
Filed: 1974-02-22
Abstract: 1406179 Solitaire game J MALTBY 22 April 1974 [22 Feb 1974] 8148/74 Addition to 1251254 Heading A6H Apparatus for playing a game comprises a solitaire board of 33 holes, 32 peg-, ball-, or counter-playing pieces coloured in the seven snooker colours and a pattern for setting-up the pieces.
Patent GB-217345-A (GB)
Title: Improvements in and relating to the art of making phonograph records
IPC: B29C43/02
Filed: 1923-03-22
Abstract: 217,345. Davis, G. H. March 22, 1923. Rotary-mould-table machines; moulding phonograph records.-In a machine for moulding disc records comprising a press plunger and abutment having cooling jackets thereon, and an intermittently moving carrier which receives the pressing casings containing the plastic material and is arrested at successive positions in its course of travel, the material is loaded in the casings at one position where the top plate of the casing is raised automatically by the advancing plunger. The plunger 12 is operated hydraulically in a cylinder 11 supported in a column 10 and presses against an abutment 16 which may be swung out of position on a shaft 17 supported in uprights 14, and is locked in position by a spring latch 100 which engages a recess 102 on a spindle 15. The plunger and abutment are provided with waterjackets 25, 26. The carrier table 18 is mounted on the spindle 15 and is driven by a motor through gearing 130, 131, 111, 112, an arm 115 operating a clutch 114 at intervals. Retraction of the plunger causes a lug 122 to strike an arm 121 on a sleeve 117 and oscillate the shaft 116, thus permitting the table to move to the next position, further motion being checked by a cam 120. Fig. 2 shows three positions or stations, a heating and loading station A, a heating station B, and a pressing station C. The station A is provided with a heating-jacket adapted to rise with the pressing head, and the pressing casing J, Fig. 2, is mounted on arms 60 so that a lifting- arm 64 fixed on the plunger head and operat-- ing through an aperture 63 raises the lid 42, Fig. 5, into contact with a vertical heating-jacket 70. The station B is provided with heating- jackets above and below the table.
Patent GB-1128483-A (GB)
Title: Hydraulic support assembly for mineral mines
Inventor: MUTZKE WILHELM
IPC: E21D23/00
Filed: 1966-02-24
Abstract: 1,128,483. Advancing props. GEWERKSCHAFT EISENHUTTE WESTFALIA. 24 Feb., 1966, No. 8214/66. Heading E1E. Parallel advancing hydraulic props 2, 3 are restrained from undesired relative lateral movement at their upper ends by a link 1 having a pin 13 and slot 12 connection with a tiltable crosshead 4, secured to the prop 3, and guided by a compensating link 5 to provide substantially straight line motion 14 of the prop 2. The link 1 may have longitudinal adjustment means 10.
Patent GB-957356-A (GB)
Title: A method of and an apparatus for treating the surface of meat pieces
IPC: A22C9/00
Filed: 1962-03-02
Abstract: 957,356. Tendering meat. P. WITTIG. March 2, 1962 [March 3, 1961], No. 8215/62. Heading A2U. Meat 6 on a conveyer 2 is whipped by cords 5 on a rotating shaft 4 so that the surface of the meat is made adhesive facilitating joining pieces of meat together.
Patent GB-1528430-A (GB)
Title: Process for producing a semiconductor device
IPC: H01L21/3105
Filed: 1977-02-28
Abstract: 1528430 Supports for semi-conductor devices NCR CORP 28 Feb 1977 [18 March 1976]  08284/77 Heading G2C In the production of a semi-conductor device a silicon nitride surface is treated with a solution of trichlorophenylsilane prior to the application of the photo-resist. The silicon nitride surface is immersed in a heated solution of trichlorophenylsilane in xylene and trichloroethylene. The surface is then ultrasonically cleaned (a) in trichloroethylene and (b) in xylene, spin dried and finally baked at 140 to 160C.
Patent GB-971781-A (GB)
Title: Stays for hinged windows
Inventor: BRIMELOW JAMES
IPC: E05C17/30
Filed: 1962-03-05
Abstract: 971,781. Stays. S. M. L. (ENGINEERS) Ltd., [trading as ELLBEE WINDSCREEN CO.]. May 31, 1963 [March 5, 1962], No. 8468/62. Heading E2F. A telescopic stay comprises an inner portion 1 having a non-circular cross-section and an outer portion 2 on which a locking collar 8 is rotatably mounted in such a manner that it cannot move axially on the outer portion, the collar having a non-circular bore in an extension 8x surrounding the inner portion so that rotation of the collar, e.g., by means of a handle 9, causes the inner portion 1 and the extension 8x to bind together to lock the stay in its adjusted position. The collar is located on the outer portion by a pin and slot connection 10, 11. The inner portion is pivoted to a bracket 5 adapted to be attached to a window 6, and the pivot also carries a catch 12 adapted to cooperate with a peg 14 on the window frame to hold the window closed. The catch has a notch 16 which can be engaged with the peg to hold the window slightly open.
Patent GB-975816-A (GB)
Title: Gas discharge tube pulsing circuit
IPC: H05B41/392
Filed: 1961-03-08
Abstract: 975,816. Transistor pulse circuits. HEWLETT-PACKARD CO. March 8, 1961 [March 17, 1960], No. 8515/61. Heading H3T. [Also in Division H2] In a circuit for supplying pulses to a gas-discharge tube, the tappings on the transformer primary are first set to provide a high secondary voltage at the beginning of each pulse and, when the gas tube breaks down, the primary tappings are automatically adjusted to reduce the primary current. Fig. 1 shows a circuit for pulsing a microwave noise generator tube 41. Positive pulses from a source 11 are amplified by a transistor 13 and amplifier 15 before being fed to terminal 21 of transformer 25. The switching device 55 is normally closed so that the effective primary connections are terminals 21, 51. The secondary winding provides a 4,000V pulse which strikes the tube 41, thus giving an increase in primary current. The striking of tube 41 causes a positive pulse to appear at terminal 27 which renders diode 29 conductive, hence the effective primary connections are now terminals 21, 27, so that the primary current is reduced. Negative feedback from point 46 maintains constant current in tube 41 until the end of the pulse from source 11, when the switching device 55 is opened and tube 41 extinguished. Device 55 is reclosed, in readiness for the next pulse, by the decay of flux in an inter-stage transformer of amplifier 15. The negative feedback from point 46 is inoperative when the tube 41 is extinguished.
Patent GB-547595-A (GB)
Title: Improvements in or relating to machines for and methods of applying and securing a metallic band around an object
IPC: B65B13/32
Filed: 1940-05-13
Abstract: 547,595. Bale-ties. WORKMAN, E. R. May 13 1940, No. 8612. Convention date, May 3, 1939 [Class 45] The strip or wire by which a box &c. or a structural element, is banded has its ends butt welded together. The wire 6 leaves an adjustable slip-spring drum reservoir 4 and after passing over a jockey pulley 7 is gripped between a row of pairs of power-driven rolls 14. From the end rolls it is threaded through a rockable sleeve 51 and thence passes round a stationary circular track 9 till its free end enters grippers 20 and abuts against a stop 18. The wire is located medially of the track 9 by two rows of staggered studs 17 having a flared form to retain the wire except when the latter is given a sharp tug as when the tightening thereof takes place during the wrapping process. Alternatively the track has a groove covered by a lid slid thereover by a serpentine spring and made self-opening by the reverse drag of the wire; or for a band two U-springs with turned-up rims may be employed. The tightening is effected by reversing the direction of rotation of the rolls 14 which are driven by one or the other of two electromagnetic clutches mounted on the drive counter-shaft. The clutch members are given a continuous rotation in opposite directions by a V-belt 31 passing round the clutches and round a lay-off pulley 34, and are automatically switched on and off by cams on a shaft 43 continuously driven from the shaft of pulley 34. The wire 6 before entering the track 9 passes between spring jaws 56 which gape apart to accommodate a bight of the wire formed by the inertia of the latter when its end comes against the stop 18. The stop 18 forms the top of one member of scissors 53, 63 which sever the wire when a cam on shaft 43 lowers the member 53 immediately after the loop is complete and tightened about the parcel. The newly severed end of the wire is held between grippers 55 which are then automatically raised by a cam on shaft 43 to bring it into abutting relationship with the end held by grippers 20. The tightening of the wire has previously raised a frame 10 carrying the roll, clutch, &c. parts about a pivoted lever 11, and pulled it into position close under the parcel lying on the platform 2, this movement being assisted by a crank 48 on the end of shaft 43 striking against an abutment 49, the crank serving subsequently gently to lower the frame. The current is passed through the grippers 20 and 55, which are insulated from one another, at the required moment by a cam contact on shaft 43, and after welding both grippers 20, 25 are released and the frame 10 lowered. The cycle may be made to terminate with the striking of the wire end against the stop 18. Each gripper has a serrated and a plain jaw, to prevent the wire welding itself to the jaws.
Patent GB-544395-A (GB)
Title: Improvements relating to bolt or tee slots of machine tools and like machines
IPC: B23Q3/10
Filed: 1941-07-09
Abstract: 544,395. Work-tables. CHURCHILL MACHINE TOOL CO., Ltd., and ASBRIDGE, H. H. July 9, 1941, No. 8669. [Class 83 (iii)] A machine tool table a is provided with tee slots for the fixing of reversing dogs, stops &c. by first machining shallow parallel grooves b, c and then securing in said grooves by bolts g suitably shaped bars d, e each of which provides half the slot.
Patent GB-1493535-A (GB)
Title: Telephone adapter
IPC: H04M15/30
Filed: 1975-05-03
Abstract: 1493535 Hands-free telephone apparatus; horns A N SPANEL 3 March 1975 [4 March 1974] 8680/75 Headings H4J and H4X [Also in Division G3] A hands-free telephone adapter comprises a reentrant substantially exponential horn 11 having a coupling end 15 coupling with its tail portion 13 to provide acoustic coupling with the telephone handset microphone 20M, the area of the horn mouth 12 being larger than the area of the sound exit of the coupling end 15. The horn 11 is mounted in a housing 14 and the coupling end 15 opens through a part of the housing 14 removed from, and outside the perimeter of the horn mouth 12. Away from the housing is a loud-speaker 23 for making audible the signals received by a telephone handset earphone 20E and positioned to avoid howling. The horn 11 contains an odd number of sections, an even number of which are re-entrant sections. The axial acoustical length M of the horn 11 is at least 1À3 times and preferably several times the maximum mouth entrance dimension (MED) Fig 2 (not shown). A seal 19 is provided between the handset microphone 20M and coupling chamber 15. An induction coil 21 shielded by a Faraday shield 21F inductively couples signals from the handset earphone 20E and these are applied through a shielded lead to an audio frequency amplifier 22 and loud-speaker 23. A recording jack 24 permits recording by a tape recorder 36 and when a plug 25 is inserted an audio beeper 37 injects a periodic "beep" in the telephone converation, indicating to all parties that the telephone conversation is being recorded. The adapter may be battery operated, mains operated, or both, and if desired an A.C. supply may be used to recharge a battery. An elapsed time display consists of a scale 26 traversed by a printer 27 attached to an endless belt (28) Fig. 2 (not shown) driven by a motor 29. The motor 29 may be of mechanical spring type, of D.C. type where a battery is used or of A.C. type where A.C. is used. Where a mechanical spring motor is used it is wound at the beginning of the call, such winding automatically returning the point 27 to zero. An electric motor is returned to zero by a push button (not shown) or by turning the motor 29. The motor 29 must be substantially silent. In a modification (not shown) either the scale or the pointer is mounted directly on the motor 29.
Patent GB-145898-A (GB)
Title: Improvements in bodywork frames for use on motor vehicles
IPC: B60G99/00
Filed: 1919-04-08
Abstract: 145,898. Daimler Co., and Inskeep, H. C. April 8, 1919. Bodies. - The body of a motorvehicle is mounted on a body frame comprising longitudinal members A, cross members F, and outwardly projecting brackets D, which are secured to the members A and support the edges of the body E The length of the brackets may be varied to suit different types of body. The body frame, which may be trussed as shown at A<3>, is pivoted at A<2> to the chassis B, and is supported on fixed resilient pads C.
Patent GB-1423822-A (GB)
Title: Processes for the production of optically active esters of a-amino acids
IPC: C07B57/00
Filed: 1972-02-25
Abstract: 1423822 Optically active α-amino acid esters GLAXO LABORATORIES Ltd 20 Feb 1973 [25 Feb 1972 22 Dec 1972] 8902/72 and 59431/72 Heading C2C The invention provides a process for the production of an ester of one enantiomer of an α-amino acid in the form of a salt with an optically active acid which comprises reacting an acid of the opposite enantiomer of said α-amino acid (optionally in admixture with an ester of the desired enantiomer) with said optically active acid and an aldehyde or ketone, optionally in the form of an acetol, hemiacetal, ketal or hemiketal thereof, whereby an ester of the desired enantiomer separates out in the form of said salt. Preferred esters have Formula I in which R represents an optionally substituted C 1 -C 6  alkyl group, an optionally substituted C 5 -C 6  cycloalkyl group an aralkyl or aryl group and Ar represents an aryl group (including heteroaromatic groups) and the preferred acids are tartaric acid and dibenzyltartaric acid. The invention also provides esters of Formula II in which R is as defined above and R<SP>1</SP> is a substituted or unsubstituted acyl group other than unsubstituted phenyl, which are in substantially optically pure form, together with their (+) hemitartrate salts.  N - Benzylidene ethyl DL - phenylglycinate is prepared by reaction of benzaldehyde with ethylphenylglycinate. Methyl and ethyl DL - p - hydroxyphenylglycinate are prepared by reacting DL-phydroxyphenylglycine with methanol and ethanol respectively in the presence of concentrated H 2 SO 4 . Other ring substituted phenyl glycinate esters are also prepared by refluxing the appropriately substituted phenylglycine with the appropriate alcohol in presence of concentrated H 2 SO 4 . N - Benzylidene methyl DL - p - hydroxyphenylglycinate is prepared by reacting methyl DL - p - hydroxyphenylglycinate with benzaldehyde. N - (p - Nitrobenzylidene)methyl DL - phydroxyphenylglycinate and N-(p-methoxybenzylidene)methyl DL - p - hydroxyphenylglycinate are prepared by reacting methyl DL-p-hydroxyphenyl glycinate with, respectively p-nitrobenzaldehyde and p-methyoxybenzaldehyde.
Patent GB-554590-A (GB)
Title: Improvements in or relating to routing machines
IPC: B27F5/02
Filed: 1942-06-29
Abstract: 554,590. Trenching and slotting wood. SYKES, Ltd., W., and BRIGGS, C. B. June 29, 1942, No. 8911. [Class 145 (i)] A routing machine is constructed with a head which is capable of reciprocating horizontally and is furnished with one or more tools driven from a stationary motor, and a work table adapted to be raised and lowered mechanically. The machine comprises a frame 1 with an upstanding part 3 provided with a horizontal slide 5 on which a tool head 4 is reciprocated by a crank disc 9 driven by an electric motor 6. The head 4 is provided with one or more bearings 13 for spindles 11 that carry cutting tools 12, the bearings being adjustable laterally along the head. The spindles 11 are rotated by an electric motor 14 through V-belts 15. The work table 2 is carried by a support 22 which slides in vertical guides on the frame 1 and is raised and lowered by a rack 23 and pinion 24, a counterbalance weight 26 being provided to facilitate the movement of the table. The work may be secured on the table by any convenient means, a suitable device consisting of cylinder blocks 31, 32 with parts 33, 34 overhanging movable jaw plates 35, 36. The plates are forced towards the parts 33, 34 by hydraulic pressure supplied by a cylinder 37 the piston of which can be moved by a handle 38 to force grease or oil along pipes 39 to the cylinders 31, 32.