baber/WOPTO huggingface dataset:
Patent GB-965554-A (GB)
Title: A multi-function semiconductor device
IPC: D04B9/54
Filed: 1960-11-11
Abstract: 965,554. Semi-conductor device. WESTINGHOUSE ELECTRIC CORPORATION. Nov. 11, 1960 [Dec. 14, 1959], No. 38830/60. Heading H1K. A semi-conductor device comprises a wafer having two main layers of opposite conductivity types and additional regions so that one portion has a PNPN negative resistance characteristic formed in part by utilizing two adjacent portions of the PN junction between the main layers, and another adjacent NPN portion has a transistor characteristic. Fig. 4 shows a PN semi - conductor wafer comprising a P-portion 16 and N-portion 15; a metallic layer 34 consisting of gold, silver, lead or alloys thereof or of highly degenerate semiconductor, contacts the lower face of the N- layer 15 while a central P+ region 120 and surrounding P+ ring regions 122 and 124 contact the top of P-layer 16. Between the P+ regions lie annular rings 126, and 128, of N- type material. If a voltage source is connected to make N-region 126 negative and P-region 124 positive, while layer 34 floats, current passes as shown from region 126, through P-layer 16 and N-layer 15 to metal layer 34 and then up through these layers to be collected by N-layer 128 and then, again via layer 16 to P-region 124. Connected in this way, the arrangement operates as an NPNPNP device; if two adjacent regions are connected (e.g. negative to 126 and positive to 122) the arrangement operates as an NPNP device. It is stated that the arrangement may be made to produce pulses of variable width and recurrence frequency, and sine or sawtooth waveforms. Fig. 5 shows two PNPN arrangements having two common lower layers (P- layer 214 and N-layer 210) with the metallic layer 212 contacting the lower face of N-layer 210. When current is passed between the two upper P-regions the arrangement operates as a 7-layer PNPNPNP device. Fig. 6 shows an alternative arrangement comprising three NPN layers with a metallic layer 310 connected to the bottom N-layer 312, and 7 zones consisting of N+ and P regions alternately connected to the upper N-layer 316. The semi-conductor may consist of silicon, germanium, silicon carbide, gallium arsenide, gallium antimonide, indium arsenide or indium antimonide. In one embodiment the device is manufactured by forming an N-type layer on a P-type silicon body of 0.1 to 10 k.ohm cms. by diffusion of phosphorus, arsenic or antimony in a furnace at 1000‹ to 1250‹ C., the sides and top of the body being masked by an oxide layer. Alternatively alloy diffusion using doped gold or silver foil may be employed. Suitable alloys are 98 to 99.9% gold-boron alloy or a gold alloy with 1% bismuth and 0.1 to 2% boron. Alternatively gold-arsenic or gold-antimony alloys may be used. Ohmic contacts may be provided by tin layers or pressure contacts.
Patent GB-1147057-A (GB)
Title: Injection moulding machine
IPC: B29C45/48
Filed: 1966-08-31
Abstract: 1,147,057. Injection moulding machines. GEBR. BUHLER. 31 Aug., 1966 [16 Sept., 1965], No. 38847/66. Heading B5A. Plastics material to be injected into a mould 3 is preplasticized in a cylinder 40 by a screw 43, degassed in a chamber 70 and fully plasticized in an injection cylinder 10 containing a rotatable and longitudinally movable screw 13 having different depths of thread and/or a thread of variable pitch. The cylinder 40 is pivotably mounted at 26 on the cylinder 10 and is connected via an interchangeable nozzle 42 to the chamber 70 which is itself removably attached to an inlet 15 of the cylinder 10 and has a transparent cover 74. The screws 13, 43 are rotated by hydraulic motors 25, 55 respectively, connected in series, the former being controlled by a valve 102, the latter being controlled relative to the adjustment of the former by a valve 109. During rotation of the screws and feeding of material from a hopper 48, a pressure builds up at the tip 431 of the screw 43 due to a predetermined pressure set in a cylinder 60, by a valve 120, causing retraction of the screw 43 from its nozzle 42. When the pressure exceeds the predetermined value due to the oil in a delivery line 95, preplasticized material is injected into the degassing chamber 70 and thence to the injection cylinder at a feed zone 133. It is then conveyed to a zone 131, further compression and complete plasticizing taking place in a zone 132. Successive feeding of material causes retraction of the screw 13 which is counteracted by a pressure acting through an outflow valve 114. When sufficient material is between zone 131 and the nozzle 12, material is injected in one shot, the velocity and pressure of which are determined by a regulating valve 111 and a pressure setting valve 112 respectively, the valve 113 being set to connect valves 112, 114, the oil flowing through a non-return valve 115 to initiate the shot. In a modification (Fig. 2, not shown) regulating valves 125, 126 are coupled so that if one is adjusted the other adjusts accordingly, the speed of motor 55 then always being at a certain ratio to that of motor 25. Heating and/or cooling ducts 16, 17 and 46, 47 may be provided. Electric motors may replace the hydraulic motors 25, 55. The cylinder 43 and chamber 70 may be removable.
Patent GB-1032100-A (GB)
Title: Jib type crane apparatus
IPC: B66C23/92
Filed: 1964-09-23
Abstract: 1,032,100. Luffing gear for mobile Jib cranes. UNIVERSAL MARION CORPORATION. Sept. 23, 1964 [Jan. 27, 1964], No. 38858/64. Heading B8B. The jib 15, Fig. 1, of a mobile crane is luffed by a winch and a cable assembly 20 which passes from a fixed point on a framework 21 round a sheave assembly on the framework and a further sheave assembly which is mounted on top of a boom-mast 19 and has its axis of rotation in the vertical plane in which the jib luffs. Fig. 9 shows the reeving of the cable 73 from a fixed point 74 to a winch 76. Pulleys 67-70 are in the upper sheave assembly in Fig. 1, pulleys 45, 48, 51, 52, 55 are in the lower sheave assembly and pulleys 35-38 and 75 are on the framework 21. A lower sheave mounting member 39, Fig. 3, is pivoted to the framework 21 by members 56, 57, and the upper sheave assembly 58 is pivoted to a member 18 attached to boom pendants 17, Fig. 1.
Patent GB-341855-A (GB)
Title: Improvements in apparatus for collecting packets of coins
IPC: G07D9/00
Filed: 1929-10-15
Abstract: 341,855. Arranging packets of coins. CHIGER, S., 9, Wilhelmstrasse, Berlin. Oct. 15, 1929, No. 38884/30. Divided on 31270/29 under which a Specification was laid open to inspection under Sect. 91 of the Acts, June 14, 1930. [Class 94 (i).] The shoot 56 for conveying packets of coins from a rotary table 53, on to which the packets are delivered from an apparatus for counting and packing coins, to a series of chambers 65 each adapted to receive packets of different value, is so constructed that the packets received in a vertical position are delivered in a horizontal position. The chambers 65 are of tortuous shape and have openings 66, 67, 68 in an inclined surface 58 upon which a slide 59 may be moved by means of spur wheels 62 meshing with racks 63 so that an aperture 60 is placed in communication with one of the chambers. The slide has a stop 69, while an operating-wheel 61 and a spring-controlled pawl 64 for securing the slide in position are also provided.
Patent GB-947356-A (GB)
Title: Improved mechanism for the production of carton blanks
Inventor: DUNTON JOSEPH JOHN
IPC: B31B50/16
Filed: 1961-10-31
Abstract: 947,356. Scoring webs. FORGROVE MACHINERY CO. Ltd. Oct. 16, 1962 [Oct. 31, 1961], No. 38944/61. Heading B6J. [Also in Division B4] In a machine for making scored and slit carton blanks from a paper or like web (see Division B4), parallel longitudinal scores are produced by a plurality of pairs of co-operating fixed blades 19, which are secured to their frames by screws 32 engaging vertical slots in the blades, and are adjustable for height by means of screws 33. The outer belt-assemblies II, III including driving belts for the web and the scoring blades are adjustable laterally with respect to the fixed inner belt-assembly I, by mounting the assemblies on frames 127 carrying sleeves 128 around cross members 29 and nuts 30, Fig. 9, engaging adjustable screws 31.
Patent GB-1472625-A (GB)
Title: Automatic torque limitation control for a variable-d-splacement pump
IPC: F04B1/26
Filed: 1974-09-06
Abstract: 1472625 Fluid-pressure servomotor systems CESSNA AIRCRAFT CO 6 Sept 1974 [11 Sept 1973] 38954/74 Heading G3P The output pressure of a variable displacement pump 12 adjusts a pilot valve 40 to connect the output pressure or a drain 55 to a servopiston 22 for adjusting the pump displacement, the movement of the pilot valve being opposed by a spring 45 and by fluid pressure from a line 52 connected to pump output pressure through a throttle 50 and to drain through an orifice 30 in a spring-loaded . valve 26 having a follow-up relationship with the piston 22. As the latter moves to the right to decrease the pump displacement, flow through the orifice 30 is throttled and the fluid pressure acting on the left hand end of the pilot valve 40 is increased to maintain the driving torque constant. At maximum output pressure the line 52 is connected directly with the piston 22 by an orifice 60.
Patent GB-341680-A (GB)
Title: An improved hood for golf bags
IPC: A63B55/00
Filed: 1929-12-19
Abstract: 341,680. Hoods for golf bags. NORTH BRITISH RUBBER CO., Ltd., and JOHNSTON, A., Castle Mills, Edinburgh. Dec. 19, 1929, No. 38981. [Class 132 (ii).] A golf-club bag b is provided with a hood a having openings in two opposite sides. The opening at the front, Fig. 1, extends to the top of the hood, while that at the rear, Fig. 3, stops short thereof. The top of the hood is formed as a flap c. The bottom of the hood is secured to the bag as shown at g, straps l keeping it in place when in use. When not in use, it hangs from the golf bag on the side opposite to the carrying handles, and may either be used as a receptacle or be closed by the straps l. Press-stud fastenings d may be used to keep the various openings in the hood closed.
Patent GB-1294767-A (GB)
Title: Enzyme for lysing cells of dental caries-inducing microorganisms
Inventor: YOSHIMURA YOSHIO
IPC: A61Q11/00
Filed: 1970-08-13
Abstract: 1294767 Anti-caries compositions DAINIPPON PHARMACEUTICAL CO Ltd 13 Aug 1970 [28 May 1970] 39044/70 Addition to 1248896 Heading A5B [Also in Division C3] A composition for preventing or treating dental caries comprises, in admixture with a carrier, an enzyme capable of lysing cells of dental-caries-inducing microorganisms produced by cultivation of a wild-type strain of Streptomyces globisporus B-1829 (ATCC No. 21553 or FERM-P No. 596). The composition preferably contains 1-5000 enzyme units per unit dose, and may be in the form of toothpaste, toothpowder, ointment, solution, chewing gum, tablet or troche.
Patent GB-978948-A (GB)
Title: Improvements relating to fluid pressure operable control mechanisms
IPC: F16K31/52
Filed: 1962-10-16
Abstract: 978,948. Fluidpressure locking devices. WESTINGHOUSE BREMSEN G.m.b.H. Oct. 16, 1962 [Nov. 3, 1961], No. 39103/62. Headings F2E and F2F. [Also in Division E2] A fluid pressure control means for controlling a changeover cock means 7 as a function of the operation of two manually-actuated control valves 1, 2 comprises a valve device 12 having a pressure sensitive element 13 subject on one side 23 to the fluid pressure from one control valve 1, via communication 8, 14, and on the other side 24 to the fluid pressure from another control valve 2, via communication 11, 15, the pressure sensitive element 13 being coupled through a lever linkage system 25, 35 to an inlet and outlet valve assembly 33, 32, 32A adapted to supply or vent fluid pressure to or from a locking cylinder device 18 in dependence upon the position of the pressure sensitive element 13, the locking cylinder device 18 having a spring-loaded piston element 19 with a locking rod member 20 arranged such that when the pressures on both sides of the element 13 are equal the locking cylinder is rendered inoperative and when the pressures are unequal the locking cylinder is rendered operative to lock the changeover cock means 7 in an immovable position by means of spring- loaded locking rod member 20 entering a slot 21 in the movable plug member 77 of the cock means 7. Fig. 2 shows the valve device 12 in the position wherein an equal pressure exists on both sides of the pressure-sensitive element 13 and the valve 32 is open, valve 32A and exhaust outlet PE are closed to allow fluid pressure to pass from the inlet 16 to the outlet 17 of the control valve to pressurize the locking cylinder device 18 and lock the changeover cock means 7 in the position shown in Fig. 1 whereby fluid is able to pass from communication 8 via the cock means 7 to an outlet 9 to feed an adjusting device such as a mechanism for reversing the propeller of a ship.
Patent GB-840029-A (GB)
Title: Process and apparatus for manufacturing rubber-soled shoes and the like
IPC: A43B9/04
Filed: 1958-12-05
Abstract: 840,029. Moulding rubber soles to footwear. OFFICINE MECCANICHE ANTONIO NOVA. Dec. 5, 1958 [Oct. 4, 1958], No. 39293/58. Class 87(2). [Also in Group VII] The side mould members 3, 4 are provided with stepped recesses 12, Fig. 2, which, together with the plates 13, 14, form grooves for receiving strips 18 of the same material as the shoe upper. These strips 18, which later form the welt of the shoe, are of width such that the strip edge engages during moulding the lower portion of the upper side wall 20. The plates 13, 14 are formed with tapered ends which extend beyond the walls 11 of the mould members 3, 4 and press against the margin of the shoe upper 20 in order to seal the mould on the last side. If desired, the welt strips 18 may be of a length exceeding half the overall welt length, their ends being bevelled whereby the junctures of each strip with the other at the toe and heel portions of the finished shoe are inclined to the longitudinal middle plane of the shoe. Upon removing the mould from the shoe, the welt portion extending beyond the side walls of the sole is trimmed.
Patent GB-335133-A (GB)
Title: Improvements in internal-combustion turbines
IPC: F02C7/00
Filed: 1929-12-23
Abstract: 335,133. Kreher, M. Dec. 23, 1929. No Patent granted (Sealing fee not paid). Working-fluid supply.- A combustion-product turbine is supplied with gas by means of pairs of pistons which are operated directly or indirectly by the turbine shaft. Cooling air is circulated about and through the hollow turbine blades by means of impeller blades fixed to the rotor, the air also serving to expel the exhaust gases through one or more exhaust pipes u. Gas is drawn in between pistons f, which are driven by links d, e, m from the turbine shaft a and connecting rod c, the latter being attached to a guiding piston f<1>, compressed, and fired by a plug W, and directed to nozzles k through ports in the sliding sleeves r and s. These sleeves are moved by eccentrics on the turbine shaft. The piston ends are helically shaped. The reversing blades h are situated only in the zones of admission, that is when opposite the banks of nozzles k. A speed changing gear may be introduced between the pump operating crank and the turbine wheel.
Patent GB-1388589-A (GB)
Title: Production of formamides
IPC: C07C231/06
Filed: 1972-08-24
Abstract: 1388589 N-alkyl, N-cycloalkyl and N-aralkyl formamides DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT 24 Aug 1972 [3 Sept 1971] 39405/72 Heading C2C N-alkyl, N-cycloalkyl and N-aralkyl formamides are prepared by reacting an olefin with hydrogen cyanide in the presence of an acid (i.e. the Ritter reaction), the molar ratio of the olefin to the acid being greater than 1À25, at a reaction temperature of from 30 to 70 C., and wherein the formamide is extracted from the unneutralized acid reaction solution with a polar acid-stable solvent and is subsequently recovered from the extract, e.g. by distillation under vacuum. The solvent is suitably one or more tri-substituted phosphoric acid esters, e.g. tri-n-butyl phosphate or trioctyl phosphate, or one or more tetra-substituted urea derivatives, or a mixture thereof. The extraction is suitably carried out in the presence of an aliphatic or aromatic hydrocarbon having a relative density of up to 0À90. Examples relate to the preparation of N-t-butyl-formamide.
Patent GB-1528133-A (GB)
Title: Process for preparing polyester elastomers
IPC: C08G63/06
Filed: 1975-09-30
Abstract: 1528133 Preparation of block copolyesters TEIJIN Ltd 30 Sept 1975 [30 Sept 1974 30 Oct 1974 11 Oct 1974 (2) 14 March 1975 27 March 1975 1 Sept 1975] 39946/75 Heading C3R A block copolyester elastomer having a softening point of at least 120‹ C. is prepared by reacting, in the molten state, (i) an aromatic polyester derived mainly from terephthalic acid and tetramethylene glycol or trimethylene glycol and having a reduced viscosity of at least 0À4 and (ii) an aliphatic polyester derived mainly from an aliphatic dicarboxylic acid or an aliphatic hydroxycarboxylic acid and a C 2-10  aliphatic glycol and having a reduced viscosity of at least 0À4, the weight ratio of (i) to (ii) being from 20 : 80 to 90 : 10, the reaction being carried out in the presence of a titanium catalyst until a polymer is obtained which has an elastic recovery of at least 50%. The polyesters may also contain limits derived from a poly(alkylene oxide)glycol or a branching agent, e.g. pentaerythritol, trimethylolpropane or trimethyl trimellitate. The reaction between the polyesters may be stopped or inhibited by the addition of a phosphorus compound, e.g. phosphorus acid or phosphoric acid or by reacting a diaryl dicarboxylate, e.g. diphenyl terephthalate, a carbonic ester, e.g. diphenyl carbonate, or an orthocarbonate, e.g. tetraphenyl orthocarbonate. The block copolyester may be subjected to solid phase polymerization. Many Examples are given, e.g. reacting polytetramethylene terephthalate with polyethylene adipate or poly-ecaprolactone.
Patent GB-867192-A (GB)
Title: Diagnostic compositions
IPC: G01N33/52
Filed: 1958-12-11
Abstract: A bibulous carrier impregnated at two or more portions thereof with an indicating composition has each portion separated from the others by a barrier portion impregnated with a material impervious to aqueous solutions such as methyl, ethyl or propyl cellulose, cellulose nitrates, phthalate, vinyl-acetate and butyral, polystyrene, rosin or paraffin.  Particularly mentioned are a glucose indicator, an albumin indicator, a ketone-body indicator and a pH indicator as may be found in Specifications 784,548, 814,223 and 826,066.
Patent GB-819419-A (GB)
Title: Foundry moulding machine
IPC: B22C15/12
Filed: 1957-12-24
Abstract: 819,419. Moulding-machines. TACCONE, R. W. Dec. 24, 1957, No. 40058/57. Class 83 (1). In a diaphragm-type moulding-machine, the diaphragm support 24 forms a shelf extending over the edges of the pattern plate 30 at least as far as the edges of the pattern 32, so that the diaphragm is urged outwardly under said support, and downwardly, compressing the moulding material around the edges of the patterns as well as above the patterns. Specification 750,979 is referred to.
Patent GB-1444018-A (GB)
Title: Photo-polymerizable composition
IPC: C08F2/46
Filed: 1973-08-23
Abstract: 1444018 Photopolymerizable compositions FUJI PHOTO FILM CO Ltd 23 Aug 1973 [23 Aug 1972] 40111/73 Heading C3P [Also in Divisions C2 and G2] Photopolymerizable compositions comprise (a) at least one inorganic acid (including metal halide Lewis acids and phenols) salt of an indolinobenzospiropyran of the formula wherein R<SP>1</SP> is alkyl, substituted alkyl or phenyl, R<SP>2</SP> and R<SP>3</SP> each represent alkyl or phenyl or together represent a group -(-CH 2 -) n - where n is 4 or 5, X is H, nitro, halogen, carboxy, alkoxycarbonyl, alkyl or alkoxy, and Y is H or one or more substituents selected from nitro, halogen, formyl and alkoxy groups or atoms, and (b) at least one cation-polymerizable substance. Component (b) may be, for example, a compound containing one or more vinyl ether groups, a vinyl sulphide, N-vinyl carbazole or N-vinyl-pyrrolidone. Other components which may be included in the compositions include binders, sensitizing dyes, colourants, thickening agents, plasticizers, thermally fusible compounds, diluents and fillers. The compositions applied to a suitable support can be used for forming relief images for use in printing plates, or for photocopying applications.
Patent GB-1471426-A (GB)
Title: Thyristors
IPC: H01L29/00
Filed: 1974-09-16
Abstract: 1471426 Semi-conductor devices SIEMENS AG 16 Sept 1974 [14 Nov 1973] 40208/74 Heading H1K A thyristor -having main and auxiliary emitters, the latter serving to amplify the control current, is designed such that constriction of the linearly extended ignition zone through which the entire load current flows during triggering is avoided. This is achieved by arranging that the periphery of the main emitter zone 1, and that of the one or more auxiliary emitter zones 6, is sufficiently long for the following condition to be fulfilled: the value of the load current at which the voltage across the thyristor has fallen during triggering to a value of 10% of the zero trigger voltage (i.e. the anode/cathode voltage which would trigger the device in the absence of a control signal) is less than a current value comprising the product of the length of the emitter zone periphery and a predetermined current strength of from 0À3 to 1À0 (depending on the thyristor design) A/mm. of emitter peripheral length. Fig. 4 shows a plan view of a device having a single auxiliary thyristor with an emitter zone 6. The auxiliary emitter electrode 7 is interdigitated at its radially inner edge with the control electrode 8 and at its radially outer edge with the main emitter electrode 5. The auxiliary and main emitter regions 6, 1 are correspondingly shaped. The auxiliary arrangement(s) including the auxiliary emitter may be a 3-layer transistor instead of a 4-layer thyristor.
Patent GB-1402020-A (GB)
Title: Pump
IPC: B41J2/175
Filed: 1972-10-03
Abstract: 1402020 Reciprocating pumps GERBER SCIENTIFIC INSTRUMENT CO 3 Oct 1972 [17 Jan 1972] 40293/74 Divided out of 1402019 Heading F1A A pump for expressing a writing fluid from a pen of an automatically controlled plotting device as disclosed in Specification 1402019, [see Division G2-G3], comprises a housing 110 in which fluid displacement chambers are formed between cylinders 112, 114 and pistons 116, 118. The pistons are driven through cam-followers 136, 138 by cams 120, 122 which are fixed by clamps 126, 128 to a shaft 124 driven by a gear unit 86 through a gear set 134. Each combination of camfollowers and piston is biased by parallel springs 140, 142. A valve 150, having a ported plate 162 rotated by a rotary solenoid 164 and a gear 166, determines the times of supply of ink from a reservoir 170 through a pipe 158 and the delivery of ink to the pen, not shown, by a pipe 156.