baber/WOPTO huggingface dataset:
Patent GB-570018-A (GB)
Title: Improvements in rotary work indexing devices
IPC: B23Q16/04
Filed: 1943-09-24
Abstract: 570,018.. Work-holders; indexing. POWELL, C. B., and WHALE, C. V. Sept. 24, 1943, No. 15677. [Class 83 (iii)] An indexable work-holder for milling, slotting, &c. machines consists of a base A carrying a central non-rotatable stud K on which a table D can be indexed. An index plunger S on a hand lever Q pivoted to a lug P in the base is pressed by a spring R to engage any one of the equally spaced holes N passing completely through the table, the upper ends of the holes being closed by short plugs V to exclude swarf &c. If any of the indexing stations are not required, the corresponding plug V is replaced by a longer plug to prevent entry of the plunger S at that station and the short plug is placed in one of the series of holes O. The table D is clamped in indexed position by a nut on a hand lever Z engaging a screw thread on the lower end of the stud K.
Patent GB-1485508-A (GB)
Title: System for detecting the chemical composition of a fluid
IPC: G01N33/487
Filed: 1974-07-31
Abstract: 1485508 Test strip OLYMPUS OPTICAL CO Ltd 31 July 1974 [31 July 1973(11) 12 Dec 1973 20 June 1974(2)] 15728/77 Divided out of 1485506 Heading G1B A chemical testing piece comprises an elongate transparent strip on which one or more reagent containing absorbent carriers 11a-11g are arranged. A light impermeable pad 11w is also arranged on the strip and nearer to one end than any of the carriers. The positions of the carriers 11a-11g on the strip and relative to the pad 11w define a digital word as shown, which word is read by a photoelectric system measuring transmission through the strip and which defines the reagents on the strip. Changes in reagent colour are determined photoelectrically by reflection. The Specification describes systems for photoelectrically determining the test piece type and the effect of reagent on it and for calculating and printing the results of such determination.
Patent GB-699204-A (GB)
Title: Improvements in or relating to lug straps for looms
IPC: D03D49/38
Filed: 1947-08-08
Abstract: 699,204. Lug straps for looms. DAYTON RUBBER CO. Aug. 8, 1947 [Sept. 12, 1938], No. 15750/51. Divided out of 699,171. Class 142(iii) A lug strap comprises two separate side pieces 15, 16 of controllable hardness, shaped to be fitted together and secured by a rivet 18 to form a U-shaped strap. In one form, Fig. 2, each side is folded back and encloses a cushion member 17. In a second form, Fig. 4, a reversible cushion member 22 is interposed between the side pieces. The strap may be of leather, natural fibre, rubber, rubberized fabric, or a thermosetting resin impregnated fabric. The sides may be of wood. The strap may be made of a multi-layer or multi-ply fabric and may comprise metal, glass, or artificial fibres. Specification 699,171 is referred to.
Patent GB-263408-A (GB)
Title: Improvements relating to electric motor controllers
IPC: H02P1/04
Filed: 1926-06-24
Abstract: 263,408. Barbour, R. H., and Walton, J. R. June 24, 1926. Automatic circuit - breakers.-In an electromagnetic overload and underload release for motor-starters and switches, a series coil 1 acts upon an overloadrelease armature 10 and also on a movable core 3 serving as an underload release. Either armature can displace a latch 14 which, through a lever 16, 17 acts to release a switch arm 31. In reclosure the core 3 is mechanically pushed into the attracted position and there left free.
Patent GB-1267818-A (GB)
Title: Horizontal situation indicator
Inventor: WRIGHT JERAULD GEORGE
IPC: G01C21/00
Filed: 1969-03-26
Abstract: 1,267,818. Aircraft instruments. CANADA DEFENCE MINISTER OF. 26 March, 1969, [29 March, 1968], No. 15913/69. Heading B7W. A horizontal situation display instrument for an aircraft comprises a compass card 105, driven by a servomotor 104 in accordance with heading information, a track bar 120 placed over the compass card, which moves with the card and can also be rotated relative to it, and a meter bar 123 which rotates with the track bar and moves in and out of line with it to indicate deviations from the set track in response to signals from a radio beacon giving relative bearing information, e.g. ADF, or geographic bearing information, e.g. TACAN or VOR. The track bar is set simultaneously with a numerical counter 142 by a track knob 113, either by a direct mechanical connection or through a servomotor 119, or by signals 116 from equipment outside the instrument and the setting can be transmitted to external equipment. Circuitry is provided to convert relative bearing signals 126 and geographic bearing signals 127 to similar terms, with switching means outside the instrument or inside it, Fig. 1 (not shown), to apply the selected signal to the meter bar. When geographic bearing signals are being used a signal is also applied to a "to-from" flag 144. The signal applied to the meter bar may also be applied to the track bar which will then point towards the radio beacon thus indicating the current bearing of the aircraft from the beacon. A bearing pointer 150 gives the relative bearing of the aircraft from the beacon, separate circuits being provided for relative and geographic bearing signals. A command heading indicator 160 set by a knob 161 is also included in the instrument. In the event of failure of the compass card control circuit, the circuit used to drive the command heading indicator can be connected to the compass card and to a standby magnetic heading input by relays 184, 190A operated by a button 110. An emergency power supply is also available through switch 190B.
Patent GB-774458-A (GB)
Title: Improvements in parasols
IPC: A45B23/00
Filed: 1955-06-03
Abstract: 774,458. Parasols. MORO, A. June 3, 1955 [June 8, 1954], No. 15992/55. Class 134. A parasol which can be reduced to a small size by dismantling comprises a substantially circular assembly 3 of a plurality of resilient rods which are coupled together at their ends and a stiffening rib 4 holding taut a flexible cover 5, which assembly is connected at a circumferential point by means of a toggle joint assembly 2 to a metal supporting rod 1 formed of a number of connected sections. The assembly 3 comprises a number of flexible metal rods 13, Fig. 2, of rectangular crosssection connected in a circle by sleeves 14 each of which is preferably welded to the end of one of the rods 13. The cover 5 of linen or other suitable material is attached to the assembly by means of a series of rings or hooks 15. The stiffening rib 4 is constituted by two or more tubular metal elements 16 connected by means of sleeves 17 and has a pin at one end which engages a hole in one of the sleeves 14 while the tubular portion 16, Fig. 8, at the other end engages a pivot 21' provided on a screw clamp which clamps two metal discs 23 and 24 and a rubber disc 25 between a head 21" and a wing nut 22. The disc 23 is welded to one of the sleeves 14. A half-disc 27 provided with holes 31 is welded to the disc 24 and is mounted in a slot in the head 6 of the stick 1 by means of a clamp 29. The position of the half-disc 27 is determined by a pin 32 which engages a selected one of the holes 31. The end of the stick 1 is driven into the ground and the plane of the cover can be adjusted to any desired position. The parts when dismantled can be packed in a bag which may be provided with carrying straps.
Patent GB-1045644-A (GB)
Title: New amino-steroid compounds and processes for their preparation
IPC: C07D207/08
Filed: 1965-04-14
Abstract: The invention comprises 20-amino-pregnanes having the general formula <FORM:1045644/C2/1> (wherein R3 is an hydrogen atom or an acyl radical Ac derived from a substituted or unsubstituted lower organic carboxylic acid having 1-12 carbon atoms, and R4 is the methyl or ethyl group) and acid addition salts thereof; a 20-imino-pregnane having the structural formula <FORM:1045644/C2/2> and the methyl and ethyl halide salts thereof, and processes for the preparation thereof wherein 3a -hydroxy-5b -pregnan-20-one is reacted with methylamine or ethylamine to yield the corresponding 20-N-methyl or ethylimino pregnane, reacting the latter with an ethyl or methyl halide to form a 3a -hydroxy-20-N-methyl or ethyl-20-N-ethylimino-pregnane and reacting the latter with methyl magnesium halide so as to form the corresponding 20-amino pregnane or acid addition salt thereof.  The pregnane base may be converted into an acid addition salt by treatment with an acid, e.g. hydrochloric or oxalic acid. Pharmaceutical compositions, having vasodilative and spasmolytic action and containing compounds having the first of the above formul\s A, are administered orally as solutions, syrups, suspensions, granules and tablets, by injection as sterile aqueous and non-aqueous solutions, or via the body cavities in the form of a suppository.
Patent GB-498520-A (GB)
Title: Improvements in and relating to telephone installations
IPC: H04M11/02
Filed: 1937-06-09
Abstract: 498,520. Automatic exchange systems. LEHNER, C., GADESMANN, M., LEICHTHAMMER, K., and LEICHTHAMMER, H., (trading as TELEFONBAU UND NORMALZEIT LEHNER & CO.). June 9, 1937, No. 16040. Convention date, June 9, 1936. [Class 40 (iv)] In an arrangement in which additional calling apparatus is brought into use should the wanted subscriber fail to reply within a specified time, the apparatus extends the call to an auxiliary speech line, so that it may be answered from any substation by dialling the number allotted to the auxiliary line. Relay C, which is in series with cut-off relay T, makes a circuit for a thermal relay Th which operates after a specific time and connects up two-step relay U, which seizes the additional calling apparatus. This is common to a number of subscribers and is guarded in the usual manner by relay P which connects the auxiliary speech line to the line being called. A switch which is stepped by means of interrupting relays RI, RIT has its terminals selectively marked by relay M and controls relay L to connect code ringing current to a common circuit to operate bells &c. in various places. If the called party replies from his own substation either before or after the code ringing occurs, relay A(i) energizes in the loop circuit and short-circuits C, thereby releasing or preventing seizure of the additional calling apparatus. If the called party connects himself to the auxiliary speech line by dialling from another substation, relay G energizes in series with A(ii) and a holding winding of P and disconnects L, M. Contacts of P, M may be arranged as shown so that when conversation takes place over the auxiliary line the called party's line is disconnected.
Patent GB-584286-A (GB)
Title: Improvements in or relating to rivetting
IPC: B21J15/26
Filed: 1944-08-23
Abstract: 584,286. Riveting. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation). Aug. 23, 1944, No. 16073. [Class 431 [Also in Groups XXII and XXV] A hollow rivet 12, Fig. 1, is formed with a plurality of internal longitudinal ribs 15 in the entering end portion of the shank partially obstructing the throat. The mandril head 20, Fig. 2, of the riveting tool is formed with correspondingly disposed grooves 24, so that, in one relative angular disposition of the mandril and rivet, the mandril head may be advanced unobstructedly through the hollow of the rivet, and then, on relative angular movement between the rivet and mandril head, and retractive movement of the head, the rivet may be upset. The distance from the roots of the projections in the rivet 12 to the underside of the head 13 should be not less than the thickness of the work 17, 18 to be riveted, and the inner ends 25 of the segments 23 which separate the grooves 24 of the head 20 are inclined to facilitate setting of the rivet by radial displacement of the ribs 15. Alternatively, this distance may be substantially greater and the inner ends of the segments made square to the axis so that the rivet shank in setting collapses into a two-ply flange.
Patent GB-1488218-A (GB)
Title: Dyestuff laser
IPC: H01S3/20
Filed: 1975-04-18
Abstract: 1488218 Dyestuff laser BAYER AG 18 April 1975 [4 May 1974] 16099/75 Heading H1C In a dyestuff laser comprising a reservoir containing a laser dyestuff solution and a pumping light source coupled thereto, which is capable of exciting the dyestuff solution so that it emits, the dyestuff solution contains in a solvent which does not interfere with the emission a dyestuff of the general formula in which R and R 2  independently of each other denote hydrogen, alkyl, cycloalkyl or aralkyl, R 1  and R 3  denote hydrogen, R 4  and R 5  independently of each other denote hydrogen, alkyl, alkoxy or halogen, R 6  and R 7  independently of each other denote hydrogen or form with R and R 2  respectively a partially hydrogenated 5- membered or 6-membered heterocyclic ring, Me denotes hydrogen, a monovalent or divalent metal cation or ammonium, mono-, di- or trialkyl-ammonium radical and n is 0 or 1, and in which the rings A, B and C and the aliphatic or aromatic radicals contained in the Formula I are optionally substituted further, in a concentration which emits laser beams. The radiation generated lies in the wavelength range of 550 to 680 nm. The dyestuff concentration is preferably 10<SP>-2</SP> to 10<SP>-4</SP> mol./litre. Substituents in the alkyl radicals may be halogen, cyano, alkoxy, dialkylamino, N - phenyl - N - alkylamino, hydroxy, cycloalkyl, alkoxy carbonyl, N-alkylaminocarbonyl, carbamoyl or thiocyano. Suitable ring substituents are alkyl, cycloalkyl, phenylalkyl, halogen, alkoxy, phenoxy, alkyl phenyl or benzyl sulphonyl, carbamoyl, sulphamoyl, cyano or sulpho. Mc may represent Na, K, Li, Mg, Ca, Ba, Mn, Zn. Specified solvents are water, alcohols, ethers, benzene, toluene, phenols, cyclohexane, decalin, chloroform, dimethylsulphoxide, ketones, esters, diethyl carbonate and fluorinated alcohols. The dyestuffs were used in a Hercher and Pike continuous dyestuff laser, the solution being excited with line 5145 Š of an argon ion laser. The maximum was displaced by 15 nm. towards shorter wavelengths compared with Rhodamine 6G.
Patent GB-725062-A (GB)
Title: Improvements in or relating to containers and closures therefor
IPC: B65D55/16
Filed: 1953-06-11
Abstract: 725,062. Container closures. RETY, S. P. June 11, 1953, No. 16114/53. Class 125 (3). The screw cap 3 of a container 1 is retained against loss by a U-shaped yoke 6 rivetted to the cap and having outwardly turned feet 7 which engage with a flange 4 on the container neck. In a modification the yoke 6 is replaced by a hollow cylindrical member having an outwardlv turned rim to engage the flange and an aperture to allow egress of the container contents. In another modification, a thimble shaped retaining member has an external rim and a cut away portion to allow egress of contents.
Patent GB-273483-A (GB)
Title: Improvements in the manufacture of cushion tyres
IPC: B29D30/02
Filed: 1926-06-26
Abstract: 273,483. Lagruta, A. June 26, 1926. Moulding wheel tyres.- Solid tyres are moulded on a series of radial cores 17 which are passed through openings in a metal base band and which on removal leave a series of air pockets 16 separated by rubber divisions 23, by which the tyre can be secured to a metal rim 20. The cores are built up of sections 17 and 18 which can be separated for removal. Metal stiffening rings may be placed in the mould before moulding and the tyre moulded to them, or the tyre may be directly moulded on to a metal rim having apertures through which the removable cores are passed.
Patent GB-1010685-A (GB)
Title: A new or improved sound generating device
Inventor: DAVIS LEWIS
IPC: G10K1/00
Filed: 1964-04-20
Abstract: 1,010,685. Diaphragm vibrators. SELCOL PRODUCTS Ltd. Oct. 21, 1964 [April 20, 1964], No. 16210/64. Heading G5J. A sound-generating device, which may be associated with a toy engine 4, comprises a sound-box with a diaphragm 23 and a diaphragm striking means 26, the sound-box having at least one wall 7 provided with a variable-size aperture. Holes 11 provided in the wall 7, which is of plastics material, are covered by a shutter 12 mounted on a spindle 10. The shutter 12 has holes 13 which cooperate with the holes 11 so that when the shutter is rotated by movement of a lever 14, the aperture in the wall 7 is varied. The striking means 26 consists of a spring steel strip secured at 27 and located in slots 24, 25, so that when the free end is struck by the electrically driven striker 29 the centre of the spring strikes the diaphragm 23. The electric motor 31 is battery operated and may be controlled by a switch and a rheostat actuated by the lever 14.
Patent GB-1515836-A (GB)
Title: Semiconductors
IPC: H01L29/06
Filed: 1977-04-19
Abstract: 1515836 Thyristors GENERAL ELECTRIC CO 19 April 1977 [19 April 1976] 16215/77 Heading H1K In a semi-conductor device comprising a main thyristor, a pilot thyristor 62, and an auxiliary pilot thyristor 72, leakage current generated at the periphery of the device at the onset of an avalanche breakdown is utilized to turn-on the auxiliary pilot thyristor and as a consequence the main thyristor in a controlled manner to protect the device against higher voltages. In one examples, Fig. 3 (not shown), a gate electrode 24 is provided adjacent the edge of the device. The gate region in the embodiment of Fig. 4 (not shown) is radiation sensitive. The periphery of the device is bevelled.
Patent GB-148039-A (GB)
Title: Improvements in reversing gear for engines or motors
IPC: F01L13/00
Filed: 1919-06-27
Abstract: 148,039. Jorgensen, O. E. June 27,1919. Reversing.-Relates to reversing-gear for engines of the kind in which the valve-levers are actuated by one of two sets of cams on a single shaft, and consists in means for moving the rods from one set of cams to the other. As shown, the valve-levers are actuated by rods 14, pivoted to fittings 16 carrying rollers 21 bearing on the cams 7, 8, 9 or 17, 18, 19. The fittings 16 have arms 20 mounted on the crank of a shaft 10, which can be rotated by a hand lever or otherwise and is movable endwise. When this shaft is rotated, it is moved endways by a pin 11 moving in a spiral groove in the disk 12, so that the arms 20 are raised, moved endways, and lowered on to the other set of cams.
Patent GB-1502154-A (GB)
Title: Hammermill rotor
IPC: B02C13/28
Filed: 1975-04-18
Abstract: 1502154 Hammer mills C PETERS AG 18 April 1975 [18 April 1974] 16232/75 Heading B2A  A hammer mill rotor comprises separate interfitting discs 1, 2, Fig. 1 stacked along the rotor axis and connected by a tie bar or bars 5 Fig. 2 a plurality of rotatable. hammers 10 each mounted between two adjacent ones of said discs to be freely rotatable. A through shaft is thus rendered unnecessary. As described the discs 1 have central hubs 18, and the end discs 2 hubs 19' integral with trunnions 20 mounted in bearings 8. Cooling air is introduced down the axial channel 9 formed in the hubs and passes out of the rotor via radial openings 21. The rotor may have four shafts 11 supporting four rows of hammers and there is axially overlap between the impact regions of circumferentially adjacent hammers to prevent dead zones. The tie bars 5 may be of square section welded to the discs, or be round and clamped by nuts.
Patent GB-1458314-A (GB)
Title: Purifying used lubricating oils
IPC: B01D61/16
Filed: 1974-04-11
Abstract: 1458314 Regenerating used lubricating oils INSTITUT FRANCAIS DU PETROLE 11 April 1974 [12 April 1973 2 Aug 1973 8 Nov 1973] 16287/74 Heading C5E Used lubricating oils, e.g. motor oils, containing dissolved metal compounds are regenerated by circulating the oil along a first face of a membrane permeable to the oil and having a cut zone in the range 5000-300,000 and collecting a purified oil on the second face of the membrane. The oil can be diluted to 10-50% by volume with a solvent such as propane, butane, pentane or hexane; the passage of oil through the membrane can be assisted by maintaining a pressure difference across the membrane. The treatment can be carried out in a plurality of stages as shown in Fig. 2 in which a stream 11 of oil feed and solvent is passed into the first stage I and the portion 12 of the oil and solvent is passed into a second stage II, the residue from the second stage is separated at 13 into residual oil, which is discharged at 15 or partly recycled as the stream 31, and solvent which is condensed at 25 and recycled. Solvent 16 is passed through stages I and II to collect the purified oil as streams 34 and 20; alternatively the mixture of purified oil and solvent from stage II can be passed through the valve 18 and used to collect the purified oil from stage I. The membranes used in the examples are (a) a copolymer of acrylonitrile and sodium methallylsulphonate, (b) a mixture of a copolymer of acrylonitrile and sodium methallylsulphonate and a copolymer of acrylonitrile and vinylpyridine quaternized with methyl sulphate, and (c) cellulose ester; other suitable membranes are listed.
Patent GB-545155-A (GB)
Title: Improvements in or relating to furnace wall tubes
IPC: F22B37/10
Filed: 1940-11-11
Abstract: 545,155. Making tubes. BABCOCK & WILCOX, Ltd. Nov. 11, 1940, No. 16311. Convention date, April 18. [Class 83 (iii)) [Also in Group XII] A furnace wall tube comprises two rolled members 16, 10, the member 16 being provided on one side with a flat base 20 and on the other side with parallel ribs 26, 28 with an arcuate surface 18 between. The member 10 is of arcuate shape with its inner surface 19 complementary to the surface 18 so that when the two members are welded together at 12, 14 a tube is formed having a bore of circular shape. The outer surfaces of the ribs 26, 28 are curved and the parts 22, 24 of the member 16 which are in the form of flanges may be provided with saw cuts at intervals along their lengths to eliminate bending and stresses in the metal due to the unequal temperatures in the parts of the tube.
Patent GB-694320-A (GB)
Title: Improvements in vehicle draw gear
Inventor: MACRAE RONALD LOUIS JOHN
IPC: B61G7/10
Filed: 1949-07-01
Abstract: 694,320. Vehicle draw-bars; rubber springs. COAL INDUSTRY (PATENTS), Ltd. June 30, 1950 [July 1, 1949], No. 16371/50. Divided out of 694,304. Class 103 (v) and 108 (iii). A draw-gear for a rail vehicle, comprising a coupling body - 1 attached to one end of a draw-bar 4 which passes through a guide hole 6 in the headstock 7 and resilient shock-absorbing means comprising a series of pads 9 of rubber or like elastic material alternating with pads 10 of metal and threaded on the draw-bar between an abutment member 11 on the end of the draw-bar remote from the coupling body and the rear face of the headstock, is characterized in that one or more of the pads are of tapering thickness thereby providing an initial bias force urging the draw-bar to a centralized position inclined to the normal to the face of the head-stock. In the embodiment shown the bias force is used to counterbalance the weight of the draw-bar. A second series of rubber pads 9 and metal pads 10 is disposed between the coupling body 1 and the headstock 7. The metal pads 12, 13 are tapered to produce a force tending to lift the coupling. The pads between the abutment 11 and the headstock are of greater depth above the draw-bar than below whilst the pads between the coupling body and the headstock are of greater depth below than above the draw-bar whereby a further force tending to lift the coupling is obtained. To provide a greater resistance to vertical deflection due to uneven track than to lateral deflection due to curved track the pads are made rectangular with the greatest dimension vertical. Specification 694,304 is referred to.