baber/WOPTO huggingface dataset:
Patent GB-305097-A (GB)
Title: Improvements in or relating to welding machines
IPC: B23K11/31
Filed: 1929-01-28
Abstract: 305,097. Budd Wheel Co., (Assignees of Hughes, J. W.). Jan. 30, 1928, [Convention date]. Welding wheels.-A welding machine particularly for welding wheel rims to wheel discs, in an automatically-operating series of wheel making machines such as is described in Specification 253,108 comprises a number of pairs of electrodes arranged to effect a number of welds simultaneously, the welds being made during intervals in a step-by-step movement of the work along a conveying system. The wheel 12 is moved step - by - step along the conveyer bed 10 by means of transverse arms 13 engaging the central apertures 14 in the blanks. The bed 17 of the welding machine carries columns 18 connected by a fixed head 19. A movable head 20 is guided on the columns 18 and is reciprocated by connecting rods 23 which are operated through gears 27, 26 and shaft 25 from the main longitudinal driving - shaft 28 of the plant. This drive is aided by a synchronous motor 30 acting through electric clutches 29 and driven from the same source as the motor driving the shaft 28. The head 20 carries a series of transformers 31 arranged around the periphery of the wheel blank and fitted on their under sides with electrode supports 33 adjusted radially by screws 34. Each support carries a pair of electrodes 37, 38 mounted on bearing blocks secured to bell-crank levers 39, 40 which are pivoted together at 41 while the upper lever 39 is pivoted at 42 to the support 33. The electrodes are energized through leads 45 and cooling fluid for the inner and outer bearing blocks is supplied through flexible connections from manifolds 47, 49 respectively. The electrodes are brought into operation by means of a cylinder 50 pivoted on the arm 40, the piston-rod 52 being pivoted to the upper arm 39. Hydraulic power is supplied from manifolds 56 through pipes 54, 55. Cylinders 57 are provided to cushion the reciprocations of the head 20 and the cushioning action is stated to be utilizable for power storage. A lost motion connection is provided between the connecting rods 23 and the head 20, the upper limit of the head movement being adjusted by a nut 60 on a rod 59 sliding in the cross-head and the lower limit by a nut 58 located above the cushionary cylinder. The manifolds 56 are supplied from liquid storage chambers 64, air being admitted above the liquid in each chamber alternately by valve mechanism 65 actuated synchronously with the main drive through gearing 66. This gearing also controls, through switch mechanism 66<1> the power supply to the transformers 31. A central shaft 67 terminating in a spring clamp 68 extends downwardly from the head 20 to secure the work during operation.
Patent GB-1396093-A (GB)
Title: High density photodetection array
IPC: H04N5/369
Filed: 1973-01-19
Abstract: 1396093 Photo-detector arrangements RETICON CORP 19 Jan 1973 [20 Jan 1972] 2940/73 Heading G1A [Also in Division H4] A self scanning photo-detector array comprises a row of photo-sensitive elements arranged between two shift counters by means of which they are selective coupled to a pair of video lines. As shown, Fig. 2, a row of photo-sensitive elements 21, 31 each comprising a photo-diode and a switching device are arranged between a pair of shift counters 20, 30. The counters are clocked alternately to address each diode in turn by closing its associated switching device to couple the diode to the appropriate video line, the resulting charging current being proportional to the dose of radiation received since the diode was last charged. The outputs of the two video lines may be combined before or after amplification. The shift counters may be clocked in phase to produce an output of reduced resolution and devices having defects in one shift counter may be utilized by clocking the remaining counter to produce a reduced resolution output. The array may be constructed as a silicon IC using MOS techniques the photo-sensitive diode areas being interdigitated over an aperture region protected by a glass window. The diodes are also provided with enlarged non-sensing regions to increase their storage capacitance and are coupled to the video lines by means of FETs the gates of which are connected to the associated stages of the shift counters, Fig. 3 (not shown). The detectors may also be photo-transistors and FETs may be utilized as combined detector and switching devices. The two shift counters may be arranged so that each stage addresses a pair of photosensors and couples them to a pair of video lines associated with the appropriate counter.
Patent GB-1280151-A (GB)
Title: Improvements relating to control devices for alternating current electrical circuits
Inventor: LUGTON HENRY
IPC: H02M5/257
Filed: 1968-04-09
Abstract: 1280151 Switch casings; mountings SYNCHRO DEVELOPMENTS (LONDON) Ltd and DIPL ING WEBER & DR BAUER GmbH & CO KG 7 July 1969 [9 April 1968 (2)] 2976/68 and 6525/68 Heading H1N [Also in Division H2] A wall-mounted control assembly for a lighting system includes an adjusting wheel 36 which operates a switching element 37 at the beginning of its travel, and is then used to set a potentiometer which varies the delay in a gating circuit of a thyristor, thus controlling the intensity of a light source. The assembly comprises a recessed face plate 3, through a slot in which the wheel 36 projects. The switch housing 42 has a flanged front portion 49 which rests on the edge of a box 12, the latter being let into the wall. The housing 42 is held in the box 12 by claws 17 adjusted by screws 16. Circuit elements, Fig. 1 (not shown), are carried on a printed circuit plate 11. Contacts for a fuse are also fixed to the plate 11, the fuse itself being held on the inner wall of the face-plate 3, and thus being simply disconnected for replacement by removing the face plate. The housing 42 has an opening in its rear wall and screw terminals to receive a cable (not shown). In another embodiment, a number of switch assemblies are mounted together on a common screening plate, Fig. 13 (not shown).
Patent GB-964431-A (GB)
Title: Improvements in or relating to transistors
IPC: H01L29/732
Filed: 1961-01-26
Abstract: 964,431. Transistors. PHILIPS ELECTRICAL INDUSTRIES Ltd. Jan. 26, 1961 [Jan. 29, 1960], No. 3095/61. Heading H1K. In a junction transistor the collector layer consists of material having a shorter charge carrier lifetime and a wider energy gap than the material of the base layer. The junction between these " layers " need not correspond exactly with the collector-base PN junction. In one embodiment a 3Á thick layer 2 of 2 ohm cm. P-type germanium with a lifetime of 0.1Á sec. is deposited on a 0.001 ohm cm. P-type body 1 50Á thick of silicon having a lifetime of 10<SP>-9</SP> seconds. Antimony is then diffused into the germanium to form a 2Á N-type layer 3 which forms the base region of the transistor. An emitter contact 5 and associated P region is formed by alloying aluminium to the surface of layer 3 and a base connection is provided by gold contact 6. The wafer is then cut to provide separate transistors which are etched to form mesas. The collector zone is connected to nickel contact 7 by a leadtin solder. The collector zone may consist of GaAs, GaP, InP or AlSG instead of silicon.
Patent GB-691427-A (GB)
Title: Improvements in or relating to purine derivatives of therapeutic value and to the manufacture thereof
IPC: C07D473/40
Filed: 1951-02-21
Abstract: The invention comprises 2 - amino - 8 - arylpurines of the formula <FORM:0691427/IV (b)/1> where M is a phenyl or naphthyl radical, Z is a chlorine, bromine, hydroxyl, amino, alkylamino, dialkylamino, arylamino, alkylarylamino, haloarylamino, hydroxyalkylamino, hydrazino, thiol, alkylthio, or N-morpholino or N-piperidino radical bound to the 6-position through the nitrogen atom, X is hydrogen, amino, chlorine, nitro, bromine, a lower alkyl radical or up to 4 carbon atoms or alkoxyl and Y is hydrogen, amino, chlorine, bromine, nitro, a lower alkyl radical of up to 4 carbon atoms, alkoxyl, carboxy, or carbalkoxy.  The compounds may be prepared by forming an aromatic acid amide of a 6-substituted-2 : 4 : 5-triaminopyrimidine and effecting ring closure, e.g. by heating alone or with phosphoryl chloride.  Where a 5-benzamido-2 : 4-diamino-6-hydroxypyrimidine is heated with phosphoryl chloride ring closure is accompanied by chlorination to give a 2-amino-6-chloro-8-phenylpurine.  The 6-chloro compound may be reacted with ammonia, amines or alkali hydrosulphide or may be hydrolysed.  Examples are given of the preparation of the 2 : 6-diaminoderivatives of 8-(o-, m- and p-) chlorophenyl-; 8-(m- and p-) nitrophenyl-; 8-p-methoxyphenyl-; 8-p-carbomethoxyphenyl-; 8-m-bromophenyl-; 8-(31 : 51-dinitrophenyl)-; 8-b -naphthyl and 8-phenyl-purine; the 2-amino-6-hydroxyderivatives of 8-phenyl-; 8-p-nitrophenyl- and 8-(o-, m- and p-) chlorophenyl-purine; the 2-amino-6-chloro-derivatives of 8-phenyl-; 8-(o-, m- and p-) chlorophenyl-; 8-o-methylphenyl-; 8-p-carbomethoxyphenyl-; 8-(31 : 41-dichlorophenyl)- and 8-(o- and p-) bromophenyl-purine; and also 2 - amino - 6 - p - chloroanilino - 8 - p - chlorophenyl-; 2 - amino - 6 - n - butylamino - 8 - p - chlorophenyl-; 2 - amino - 6 - piperidono - 8 - phenyl-; 2 - amino - 6 - thiol - 8 - p - chlorophenyl-; 2 - amino - 6 - methylthio - 8 - p - chlorophenyl-; 2 - amino - 6 - morpholino - 8 - p - chlorophenyl-; 2 - amino - 6 - diethylamino - 8 - p - chlorophenyl-; 2 - amino - 6 - dimethylamino - 8 - p - chlorophenyl-; 2 - amino - 6 - (bis - b  - hydroxyethyl) amino - 8 - p - chlorophenyl-; 2 - amino - 6 - bromo - 8 - p - chlorophenyl - 2 - amino - 6 - hydrazino - 8 - m - chlorophenyl-purine.  Aroylaminopyrimidines.-6-Substituted 2 : 4-diamino - 5 - benzamido and 5 - naphthoylamino pyrimidines corresponding to the above products were prepared by reaction of a 6-substituted 2 : 4 : 5-triaminopyrimidine sulphite with the appropriate aroyl chloride in aqueous sodium hydroxide.
Patent GB-104529-A (GB)
Title: An Improved Patch for use in Repairing the Inner Tubes of Pneumatic Tyres and the like.
Inventor: CUTHBE CHARLES LOUIS
IPC: B29C73/10
Filed: 1916-03-03
Abstract: 104,529. Cuthbe, C. L., and Burley, E. D., (trading as Cuthbe & Co., C. L.). March 3, 1916. Punctures, apparatus for closing.-A patch for use in repairing the inner tube of a pneumatic tyre or the like consists of a backing of vulcanized rubber, a superposed layer of pure or non-vulcanized rubber, and a front facing of pure rubber which has been dissolved in a mixture of naphtha and benzol.
Patent GB-620957-A (GB)
Title: Improvements in or relating to adjusting gear for rolling machines and the like
IPC: B30B3/04
Filed: 1947-02-04
Abstract: 620,957. Rubber-rolling machines. PLANTERS ENGINEERING CO., Ltd., and HEYWOOD, F. Feb. 4, 1947, No. 3334. [Class 87 (ii)] [Also in Group VIII] Relates to adjusting gear for rolling machines more particularly for sheeting rubber coagulum and in which one roller 11 is mounted in bearings 16 slidable to and from the other roller 10, and comprising a pair of levers 18 piyoted on the machine by-bolts 21 and each engaging at the outer end with a bearing 16 and at the inner end with an abutment 25 adjustable by a screw 26. According to the invention the bolts 21 are adjustable by nuts 37, 38 on the machine to allow alignment of the rollers 1Q, 11. The abutment 25 breaks at a predetermined maximum stress. A distance piece 31 limits downward adjustment of the roller 11. In a modification in which the pressure between the rollers is adjustable the roller 10 is resiliently mounted.
Patent GB-640074-A (GB)
Title: Improvements in and relating to fastener means for securing one or more panels or articles to a support
IPC: F16B5/06
Filed: 1948-02-05
Abstract: 640,074. Securing panels to a support. UNITED-CARR FASTENER CORPORATION. Feb. 5, 1948, No. 3404. Convention date, Feb. 5, 1947. [Class 20(iv)] A fastener for securing a panel or panels to a support comprises a U-shaped clip 21, Fig. 5, having outwardly facing recesses 25 and serrated teeth 26 which grip a portion of the panel at right angles to the support, a U-shaped anchoring member 10, Fig. 9, secured to the support e.g. by rivets and having serrated teeth 17 which engage in the recesses 25 of the U-shaped clip 21 when the panel is placed in position.
Patent GB-455416-A (GB)
Title: Improved process for making cigarette paper
Filed: 1936-02-05
Abstract: 455,416. Cigarette paper. ROSCHMANN, E. M., 12, Viktoria Luise Platz, Sch÷neberg, Berlin. Feb. 5, 1936, No. 3511. Convention date, Feb. 5, 1935. [Class 96] Cigarette paper is impregnated with a solution of agar-agar and dried ; e.g. layers of paper are left an hour in a solution of 0À2 gms. of agar-agar per 100 c.cs. of distilled water. Specification 8148/86, [Class 96], is referred to.
Patent GB-1488005-A (GB)
Title: Diazotype materials
IPC: G03C1/60
Filed: 1974-01-25
Abstract: 1488005 Diazotype material IMPERIAL CHEMICAL INDUSTRIES Ltd 9 Jan 1975 [25 Jan 1974] 03591/74 Heading G2C A diazotype material having a light-sensitive diazonium compound-containing layer and a plastics support film contains, as anti-slip agent, a homopolymer or copolymer of acrylic or methacrylic acid or a C 1-8  alkyl ester or acrylic or methacrylic acid. The diazonium compound may be applied to a receptive plastics coating or, when admixed with a resinous binder, may be applied directly to the support layer or a subbing layer. The anti-slip agent may be applied in the receptive plastics layer, in the diazonium layer, or in a separate layer applied to the receptive plastics or diazonium layer. The agent is applied as a solution or dispersion in a concentration of 0À3-10 W/V per cent to provide a layer containing 0À75-25 mg/dm<SP>2</SP> of agent. Anti-slip agents specified are poly methyl or ethyl acrylate or poly methyl, ethyl, butyl, or methyl/butyl methacrylate. Support film materials, diazonium compounds coupling agents and resinous binders are specified.
Patent GB-973220-A (GB)
Title: Method of and apparatus for resistance welding
IPC: B23K11/00
Filed: 1961-01-31
Abstract: 973,220. Welding by pressure. F. FRUNGEL. Jan. 31, 1961, No. 3600/61. Heading B3R. In resistance welding a member to one face of a workpiece, the member is contacted by one electrode and the one face is contacted by another electrode having an annular contact area about the member and larger than that of the member and current is supplied to the electrodes to weld the member to the workpiece without producing heat to damage the opposite face of the workpiece. Apparatus for welding the member using a current impulse of short duration, comprises an inner electrode adapted to hold the member and surrounded telescopically by a hollow outer electrode having a contact face to engage the workpiece, means for pressing the outer electrode against the workpiece, and the inner electrode and the member held thereby against the workpiece and conductor means connected to the inner and outer electrodes, the total inductance of the conductors and electrodes being less than 0.1 microhenries A bolt 3, Fig. 1, to be welded to one face of a thin metal sheet 1 coated on its other face with synthetic insulating material has a projecting rim and is held in a cylindrical inner electrode 5 telescopically surrounded by a tubular electrode 10 which engages the sheet. Current from an impulse transformer is conducted to the electrodes by strips 6, 9 and elastic insulating material 12 is arranged between the conductors with similar material 7, 12a above the strip 6 to transmit mechanical pressure to the electrode from heads 8, 8a. In a modification for welding a shaft or pin 16, Fig. 2, having a projecting rim 16 to the uncoated side of a coated sheet metal cup la, the inner electrode comprises a tapered split chuck 14 engaged in a tapered recess 5a in a flanged body 5b, an elastic pad 7a being provided between the end of the pin and the chuck. A pressure head 8b is secured to the flanged body 5b with conductor 6 between them and an elastic ring 12 is provided between the flange of body 5b and the insulated outer electrode 10a. The pressure exerted by the head 8a firstly causes the body 5b to clamp the chuck on to the pin 16. The current impulse which may be of less than 10, e.g. 1 milliseconds duration, causes welding of the members at the region of the projections 4 without producing a temperature of e.g. 100‹ C. sufficient to damage the coating on the sheet metal. The workpiece may be polished on one side rather than coated and may be of aluminium and the electrodes may be square or rectangular section tubes. A thick copper plate or a water cooled rubber bag may be provided adjacent the coated or polished surface. The impulse may be from a condenser discharge direct or transformed or from lowfrequency A.C. or a battery source and the mechanical pressure may increase with increase of current.
Patent GB-633539-A (GB)
Title: A new or improved method of and machine for making fish hooks
IPC: B21F45/12
Filed: 1948-02-09
Abstract: 633,539. Making fish hooks. WHITE, G., WHITE, E., and RAND, S. E. Feb. 9, 1948, No. 3669. [Classes 83 (ii) and 83 (iv)] [Also in Group XXX] Angular bending; barbing by cutting.-A method of making fish hooks comprises accurately positioning pointed wires in turn in dies which are moved to enter the unpointed end of each wire between tools which operate to flatten or form an eye on said end, and then feeding and transferring the wire to a transporter, the pointed end being accurately positioned for presentation first to barbforming tools and then to tools which bend the pointed and barbed end into hook form. Previously pointed blanks 1 are arranged in a hopper 2 and fed in turn by a slotted roller 3 through a shoot having a spring-loaded side wall pad 6, to spring-loaded gripping dies 18. The unpointed end of each blank is located by a cam surface and each blank is forced downwardly out of the shoot by a pair of camoperated levers 12. The dies 18 are carried on a slide 19 which moves to present each blank in turn to end flattening dies 25, which after operation, open to allow further movement of the slide to feed the blank into one of the spring-loaded radial arms of a transporter 26, relaxation of the grip of the dies 18 allowing the pointed end to be positioned by a stop 28. Step-by-step rotation of, the transporter 26 presents the blank in turn to barbing-tools 29, 30, 31, Fig. 10, and bending-tools 33, 34, Figs. 11 and 13, the rotation of the latter serving to bend and also withdraw the completed hook from the transporter arm. The tool 33 is fixed in and projects from the head 36 of a hollow spindle 37 mounted for rotation in a slide 32, and a rod 39, slidable axially in the bore of the spindle 37 carries a stripper plate 40, Fig. 14.
Patent GB-811858-A (GB)
Title: Improvements in or relating to molecular pumps
IPC: F04D19/04
Filed: 1957-02-01
Abstract: 811,858. Screw-pumps. PFEIFFER, A., [trading as PFEIFFER, A. [Firm of]]. Feb. 1, 1957 [Feb. 2, 1956], No. 3678/57. Class 110 (1). A molecular pump comprises slotted rotor discs alternating with slotted stator discs, the slots of the rotor or the stator discs or both, having lateral bounding faces which are inclined in relation to the axis of rotation and form with the end faces of adjacent discs, wedgeshaped spaces tapering in the direction of rotation. In the vacuum pump shown, rotor discs 9 alternate with stator discs 10. A suction connection 4 is provided midway between two discharge connections 5. Slots 13 in the discs 9 are inclined oppositely to slots 15 in the discs 10. The slots co-operate with the end faces of adjacent discs to form wedgeshaped spaces 21, 23 which taper in the direction of rotation, creating a pressure rise in the spaces towards their apices. The circumferential width of the slots is such that they do not afford a free passage in a direction parallel to the axis of rotation. Preferably, the width of a slot is equal to, or slightly greater than, the width of the blank portion between adjacent slots. The slots in alternate discs may be parallel to the axis instead of being inclined, and in this case the inclined grooves of the other discs widen from the suction to the delivering sides.
Patent GB-114291-A (GB)
Title: Improvements in or relating to Artificial Arms.
Inventor: HOBBS EDWARD WALTER
IPC: A61F2/58
Filed: 1917-03-09
Abstract: 114,291. Hobbs, E. W. March 9, 1917. Limbs, artificial.-The metal strips G of the forearm and wrist bucket B of an artificial arm are connected to an upper arm band A by rigid or slightly flexible rods H formed at their ends with ball-and-socket or other universal joints H<2>, H<3> so as to permit natural wrist-twisting movements. The strips G are connected to a plate G' to which a second plate G<2> carrying an artificial hand is pivoted on a transverse axis. The plate G<2> carries a notched arcuate lug G<3> extending through a slot G' in the plate G<1> and engaged by a spring-controlled lever G<5> so as to hold the hand in angularly adjusted position about the transverse axis.
Patent GB-937832-A (GB)
Title: Thickness or width-regulating means
IPC: B21B37/18
Filed: 1960-02-03
Abstract: 937,832. Automatic thickness control. H. BRUCKER. Feb. 3, 1960 [Feb. 5, 1959], No. 3845/60. Class 38 (4). In a thickness regulating device for rolling machines, variations in the thickness of the material to be rolled are first recorded on a magnetic tape having provision for two tracks 93, 94 the former being pre-recorded at constant tape speed, frequency and amplitude and the latter serving for the recording of the thickness deviations. The material 1 to be rolled is first passed through the roll gap 21 in the direction of arrow 13 and in synchronism with the tape 30 which runs between spools 32, 33. A measuring device 23 senses thickness variations and converts them to proportional direct voltages which are fed into an amplifier-modulator 50 where they modulate a reference alternating voltage input derived from a head 41 sensing the pre-recorded track 93, the resulting modulated voltage being fed to a head 40 which records the track 94 representative of the thickness variations. For the actual rolling process the material moves through the roll gap 21 in the direction of arrow 12, the tape 30 moving in synchronism in the same direction, and the thickness of the material is determined by a regulating circuit comprising a measuring device 22, a correction device 53, a follower device 20 and a roll-gap adjusting device 17, 18. Thickness deviations in the material entering the roll gap 21, which would not be detected by the device 22 until the material had passed the roll gap, are detected by a head 39 sensing the track 94 and signals from this head are fed into the follower device 20 which thereby operates the adjusting device 17, 18 so that the " dead time " between the gap 21 and measuring device 24 is eliminated. The head 39 may be displaced in the direction of the head 40 to allow for the inertia of the adjustment system. A third head 38 sensing the track 94 also acts on the correction device 53 and corrects the adjustment device to allow for thickness variations which may otherwise over regulate the adjusting device. Rapid variations in thickness may be detected by an additional head 42 sensing the track 94 and connected to mechanism controlling the speed of the material 1 so that these rapid variations cause the rolling speed to be altered. A modification using a tape with three tracks is described, and the apparatus may be used to obtain a predetermined width of material. The regulation may be effected by the adjustment of the longitudinal tension exerted on the material.