baber/WOPTO huggingface dataset:
Patent GB-661318-A (GB)
Title: Improvements in or relating to anchoring means for electric conductors in radio or the like equipment
IPC: H05K7/06
Filed: 1949-05-14
Abstract: 661,318. Electric welding. COLE, Ltd., E. K., and KING, A. E. May 15, 1950 [May 14, 1949], No. 12900/49. Class 83 (iv). [Also in Group XXXVI] To support a terminal a (see Group XXXVI), while it is welded to a chassis i, an electrode h of the welding- machine is drilled axially so that the terminal may be fitted thereinto.
Patent GB-1030563-A (GB)
Title: Fluid pressure operated rotary actuator
IPC: F15B15/08
Filed: 1965-03-26
Abstract: 1,030,563. Fluid pressure actuators. L. T. BATES. April 12, 1965 [March 26, 1965], No. 12902/65. Heading F1P. An output rock shaft 4, Fig. 1 (not shown) passing through end caps 2 of a cylinder 1 is surrounded by a double-ended piston 12A keyed thereto at 11 and having a helical groove engaged by a cam follower 15 projecting radially inwardly from the cylinder wall whereby when fluid pressure is fed to either end of the cylinder, axial movement of the piston effects rocking of the shaft; the end of the forward stroke of the piston being cushioned by a restrictor valve 17
Patent GB-252537-A (GB)
Title: Improvements in and relating to electric resistance elements
IPC: H05B3/00
Filed: 1925-05-18
Abstract: 252,537. British Thomson-Houston Co., Ltd., Warren, H. W. H., and Newbound, R. May 18, 1925. Resistance materials; wire resistances, embedded.-A coil of nichrome, or like wire wound on an insulating or semi conducting refractory rod of carborundum &c. is embedded in an envelope of heat insulating material such as carborundum mixed with a suitable binder such as clay. The ends of the wire may be doubled back, twisted, welded, wound round the ends of the envelope and encased in metallic thimbles. Nickel or tungsten powder may be mixed with the material of the rod or envelope.
Patent GB-297131-A (GB)
Title: Improvements in or relating to diaphragms for sound reproducing devices
IPC: H04R7/12
Filed: 1927-05-14
Abstract: 297,131. Waddell, B. F. May 14, 1927. Diaphragms; loudspeakers.-An acoustical diaphragm having a plurality of flexed surfaces associated in pyramidal relation is formed from a single piece of material, the surfaces being connected at their adjacent edges by folds to compensate for excess material. Fig. 3 shows one form of blank 10 from which the diaphragm may be formed. This blank is deeply notched at 11 at the corners and is creased or scored at 12, 13 and 14. The blank is then folded along the straight crease lines 13, flexed backwardly and folded along the curved crease lines 14 with the material in the spaces 17 overlapped upon the plain quadrants. A diaphragm of the form shown in Fig. 4 is thus produced with four strengthening ribs or folds 18 radiating from the stylus holder 12. The diaphragm so formed is held rigidly under tension in a groove 9 in the mouth of a casing 1, Fig. 2, by means of a clamping frame 8. As shown in Fig. 2, the diaphragm is employed in a loudspeaker, its apex being connected by a rod 4 with the armature 7 of an electromagnetic actuating unit 2. Fig. 5 shows an alternative form of blank having the corners 19 notched and slits 20, 21 cut therein. The blank is creased to produce a central area 12 and also scored along straight and curved radial lines 22, 23. When the blank is folded on the score lines and the quadrants are simultaneously flexed backwardly, the flaps 24, produced by the slits, extend under the adjacent, quadrants and are utilized for glueing the corners together and thus holding the quadrants under stress in their flexed position. Fig. 6 shows the final form of diaphragm with strengthening ribs 25, 26.
Patent GB-268173-A (GB)
Title: Improvements in and connected with portable back rests or seats
IPC: A47C9/10
Filed: 1926-05-21
Abstract: 268,173. Ladd, A. J. H. May 21, 1926. Back-rests comprise a horizontal frame 1 resting on the ground, a substantially vertical frame 3 hinged thereto and a length of canvas 8 connecting transverse members a, 5 of the frames. The canvas 8 has looped ends through which pass rods 10 resting at their ends against the frame 3 and passing between slats 4, 5 thereon. The frame 3 hinged to incline as shown is held extended by a strap 6 passing round the slat 4 and the rear transverse member a. A length of canvas 11 is attached to the canvas 8 to lie horizontally in front of it.. The canvas portions 8 or 11 may be provided with air or other cushions 12, 13 and the canvas 8 adjusted in length by the provision of several loops in the ends.
Patent GB-1348261-A (GB)
Title: Multi-vibrator circuit
IPC: G03G17/10
Filed: 1971-05-05
Abstract: 1348261 Migration imaging XEROX CORP 5 May 1971 [8 May 1970] 13143/71 Heading G2H A migration imaging method using an imaging member comprising a substrate coated with in order (i) a transparentizable conductive layer and (ii) a layer of soluble material comprising migration marking material, comprises (a) forming an electrical latent image on the imaging member, (b) softening the soluble material so that migration marking material deposits imagewise on the conductive layer, (c) dissolving the soluble material together with the migration material in the background areas, and (d) rendering the background areas of the conductive layer transparent. Steps (b) and (c) or (c) and (d) may be effected simultaneously. The final image may be fixed by drying, using a member having a tackifiable layer between the substrate and layer (i), and/or by the transparentizing agent. In the Examples layer (i) is copper and is rendered transparent by iodine which may be mixed with a resin fixative.
Patent GB-528280-A (GB)
Title: Improvements in and relating to endless track vehicles
IPC: B62D55/108
Filed: 1939-05-02
Abstract: 528,280. Vehicle spring-suspensions. TENCH, F. (Lokomotivfabrik Krauss & Co., J. A., Maffei Akt.-Ges.). May 2, 1939, No. 13150. [Class 108 (ii)] [Also in Group XXXI] The load-supporting rollers a of an endlesstrack vehicle are mounted on cranked levers d controlled by torsion rod springs h, the levers d of each transverse pair of rollers having their pivots on the chassis frame slightly out of line, as shown in Fig. 3, so that each torsion rod can extend right across the frame. In the construction shown each lever is mounted in bearings f, g, in an oval frame tube i which accommodates the two sets of bearings and two torsion rods for a pair of levers d. In a modification each lever is mounted in rubber bushes or bearings in the tube i. The rear rollers k are mounted on co-axial double cranks l, l<SP>1</SP>, controlled by shorter torsion rods enclosed in a tube m.
Patent GB-131906-A (GB)
IPC: D06L4/12
Abstract: 131,906. Goldschmidt, O. Dec. 4, 1916, [Convention date]. De-gumming silk.-Silk is de-gummed by treatment with super-oxides such as hydrogen peroxide, sodium peroxide, or the like, or other oxidizing-substances such as per-borates, together with or before treatment with boiling soap solution. According to the Specification as open to inspection under Sect. 91 (3) (a) the process is applicable to other fibres such as flax, linen, ramie, and gorse, borax and soda solutions can be used as alternatives to the soap solution, and gelatinous bodies can be added to the boiling liquor to hasten and improve the de-gumming. This subject-matter does not appear in the Specification as accepted.
Patent GB-1176781-A (GB)
Title: An Adjusting and Securing Device for the Head Rest of a Seat.
Inventor: KEIPER FRITZ
IPC: A47C7/38
Filed: 1968-03-19
Abstract: 1,176,781. Head rests for seats. F. KEIPER. 19 March, 1968 [20 Jan., 1968], No. 13240/68. Heading A4J. On turning knob 16, to alter the tilt of a head rest mounted on a vehicle seat, the rotation of eccentric 22 produces a relative rolling movement between spur gear 18 and internally toothed gear ring 17, which results in a reduced relative angular displacement between the gears. Spur gear 18 is welded to fixed shaft 14 and the angular displacement is transmitted to head rest supporting frame 20 by projection 26 engaging slot (31), which is radial so that one component of the eccentric motion of gear ring 17 is lost. The motion of the eccentric 22 is transmitted, to the gear ring 17, by means of bush 32 and member 21.
Patent GB-855939-A (GB)
Title: Improvements relating to seats
Inventor: CLEWS LEVI
IPC: B60N2/04
Filed: 1958-04-26
Abstract: 855,939. Seats. SARJEANT & CO. Ltd., E. April 27, 1959 [April 26, 1958], No. 13296/58. Class 52(2) In a seat, particularly for a vehicle, the back part is pivotally supported by a frame e having sliding connections e<SP>1</SP> with a U-shaped front leg structure a and arcuate portions in contact with the floor. Spring urged bolt g<SP>3</SP> locate connections e<SP>1</SP> on the arms of structure a and are withdrawn from the locating holes when the connections are to be moved along the arms to raise and lower the seat. By securing the horizontal part a<SP>1</SP> of structure a to the floor by strap c, the seat is moved backwards and forwards as it is lowered and raised respectively.
Patent GB-1385338-A (GB)
Title: Random access data stores
IPC: G11C11/06
Filed: 1972-03-22
Abstract: 1385338 Transistor switching circuits SIEMENS AG 22 March 1972 [30 March 1971] 13321/72 Addition to 1309576 Heading H3T In a random access store as claimed in Specification 1,309,576 the monitoring circuit I 1  which detects an excessive number of successive call-ups of a single selector circuit is modified by provision of a further integrated circuit I 2  which renders the output signal compatible with succeeding TTL circuitry. The i.e. I 2  contains two differential comparators V1, V2, driving AND gates UG3, UG4 and an OR gate OG. The input AND gates UG1, UG2 or circuit I 1  are also provided with more inputs E1 to E4, so that some decoding is possible. Coincidence of address signals E1, E2, or E3, E4, for a selector circuit (not shown), and a clock signal E 0 , is detected by the AND gates UG1 or UG2 which turns on T1 or T3 respectively of emitter-coupled pairs. This causes an RC circuit R 1 C 1  or R 2 C 2 , which are electrical analogues of the thermal time constants of the corresponding selector circuits, to charge up. When a sufficient state of charge is reached, indicating excessive continuation of call-up of the selector circuit, and therefore the possibility of overheating, the input to V1 or V2 goes low enough to energize AND gate UG3 or UG4 and thus the OR gate OG, because the other inputs of UG3, UG4 are held positive. OG generates a signal A to operate TTL circuitry (not shown) which discontinues the call-up.
Patent GB-206542-A (GB)
Title: Improvements in plant for the carbonization of coal
IPC: C10L5/02
Filed: 1922-05-11
Abstract: 206,542. Illingworth, S. R. May 11, 1922. Retort furnaces; discharging.- In a plant for carbonizing coal in briquette form, coal from a hopper 15 is fed by a measuring wheel 151 into trays 14 caused to travel through the oven 10 which is heated by gas burners in passages 21. At the discharge end the briquettes fall into a furnace or oven 16 heated by burners in flues 22 and are discharged by a starwheel 18 into one of two cooling chambers 19, 20 the entry to which is controlled by a guide 181. Heating gas, which may be preheated in jackets surrounding the furnaces 10 and 16 and the cooling chambers 19 and 20 may be supplied by a pipe 23 to the furnaces 16 and 10 in succession. In a modification a preheating cylinder is mounted over the oven 10. Specifications 164,104, 175,888, and 187,328 [all in Class 55 (i), Coking &c.], are referred to.
Patent GB-271481-A (GB)
IPC: C03C1/10
Filed: 1927-05-18
Abstract: 271,481. British Thomson-Houston Co., Ltd., (Assignees of Dewey, D. A., and Spencer, C. D.). May 18, 1926, [Convention date]. Bulbs.-The glass is so tinted that when the filament is incandescent, the light given is substantially the colour of an oil or gas flame.
Patent GB-135555-A (GB)
IPC: A43B13/04
Abstract: 135,555. Egerton, H. C., and Duncan, H. L. Oct. 28, 1918. Shoe elements impregnated with phenol aldehyde condensation products.-Stiffening or connecting elements for boots and shoes comprise porous or fibrous material, such as cloth, canvas, cotton batting, paper, &c. impregnated with or carrying phenolic condensation cementing material, such as is described in Specifications 8875/05, 1921/08, and 1922/08, [all in Class 70, India-rubber &c.], the last referring to the compositions commercially known as Bakelite. Fig. 1 shows a boot in which the toe and heel stiffeners 5, 95, insole 11, welt 8, filler strip 16, shank stiffeners 17, 18, and a through sole 19 may all be formed of canvas &c. impregnated with the phenolic condensation cementing material. The elements may comprise one or more layers, and may be cured and moulded to shape before assembling in the boot, or, where the upper &c. materials permit, they may be cured after being assembled. To facilitate sewing &c. the edges of the elements may be thinner, or may contain a relatively small quantity of, or relatively uncured, phenolic condensation cementing material. Specification 135,806 also is referred to.
Patent GB-1300528-A (GB)
Title: Semiconductor device
Inventor: HOVEL HAROLD JOHN
IPC: H03K17/70
Filed: 1971-05-07
Abstract: 1300528 Semi-conductor devices INTERNATIONAL BUSINESS MACHINES CORP 7 May 1971 [17 June 1970] 13624/71 Heading H1K A " non-volatile "bi-stable switching element comprises a heterojunction diode one of the layers of which is of a material having a high density of defects (excluding normal dopants). This device maintains its impedance state when the supply is removed. In the characteristic shown in Fig. 2 line 3 represents a high-impedance state and line 5 a low-impedance state. Initially the device is in the high-impedance state which can be maintained indefinitely, the traps being filled, but when a reverse bias greater than V RB  is applied the traps are emptied and the device switches along path 4 to the low-impedance state 5. While reverse bias is applied this state can be maintained and even at zero bias the lowimpedance state persists for several weeks so that on re-application of reverse bias the lowimpedance characteristic is exhibited. If the device is forward biased to a current I FS  it switches along path 6 back to the highimpedance state 3. If the layer containing the defects is lightly doped the forward and reverse characteristics are symmetrical about the origin as in Fig. 2 but if the deposited layer is more heavily doped the high-impedance curve follows a normal diode characteristic in the forward direction, Fig. 3 (not shown). The device may be produced by depositing N-type GaP on a P-type Si substrate by a transport reaction method. The deposited layer may be doped with Sn, Te or Se by doping the source material, placing the doping element on the heater next to the source material, or by adding a compound of the dopant to the gas. Oxide film on the Si substrate may be removed before the growth step by heating in hydrogen or may be prevented from forming by the use of a film of iodine. The resulting wafer may be contacted using photolithographic techniques or may be dried and contacts alloyed to the surfaces. The contact to the GaP layer may be In, Sn or Au- Sn and the contact to the Si layer may be of Al or In or this may be mounted on a header. If the correct characteristic is not obtained the device may be formed by applying a number of large reverse voltage pulses. Various alternatives are mentioned including P-type GaP on N-type Si and N-type ZnSe on P-type Ge. The substrate may be monocrystalline, polyorystalline or amorphous, may be III-V compound such as GaP, GaAs, or GaAsP, or Group IV material such as SiC. The layer may be deposited on a specific crystallographic plane to produce the required density of defects (dislocations and stacking faults) but traps may be provided by introducing a deep level impurity such as Cu, Cr or Fe into the deposited layer.
Patent GB-1168329-A (GB)
Title: Dehydrohalogenation Processes
IPC: C07C17/25
Filed: 1967-03-23
Abstract: 1,168,329. Dehydrohalogenation. MONSANTO CO. 23 March, 1967 [23 March, 1966], No. 13689/67. Heading C5E. [Also in Division C2] Unsaturated hydrocarbons are obtained by contacting alkyl halides containing two or more carbon atoms (e.g. ethyl chloride) at 350 to 600 C. with a naturally-occurring mineral silicate of the iron garnet group, e.g. andradite or almandite. 1,168,340. Detergent composition. SOC BELGE DE L'AZOTE ET DES PRODUITS CHIMIQUES DU MARLY S.A., and SOC. CARBOCHIMIQUE. 28 Dec., 1967 [29 Dec., 1966], No. 58898/67. Heading C5D. A soap-free detergent composition with a substantially neutral pH in aqueous solution comprises essentially a wetting agent consisting of a mixture of potassium and sodium sulphates of C 10-18  aliphatic alcohols in which the ratio of potassium to sodium sulphate is within the range 80 : 20 to 65 : 35 or preferably 70 : 30 to 75 : 25, and a substantially waterinsoluble plasticizing component, having a fatty character and a hydroxy group, a molecular weight above 200 and a melting point above 50 C. consisting of a C 15-18  aliphatic alcohol, a partial ester of a higher aliphatic acid and a polyol, hydrogenated castor oil and mixtures thereof. The plasticizing component may be present in the range 15-25% by weight of the composition or 50% by weight of the wetting agent and may be a mixture of cetylic and stearylic alcohols and hydrogenated castor oil in which the weight ratio of alcohols : castor oil is within the range 1À5 :1 and 5:1. The preferred proportion of wetting agent is 35- 75% by weight of the composition. The composition may also contain 7-10% by weight of inert components such as colouring agents, perfumes, urea and sodium sulphate, 5-10% by weight of water and a binding agent of starch which is present in about 50% by weight of the wetting agent.
Patent GB-425653-A (GB)
Title: Improvements in and relating to mountings for electric motor car headlight lamps
IPC: F21V19/00
Filed: 1934-05-07
Abstract: 425,653. Mounting electric lamps in lamp reflectors. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London. May 7, 1934, No. 13760. Convention date, June 9, 1933. [Classes 39 (ii) and 75 (iv)] An electric lamp for use in a reflector comprises a bulb 11 with a light source 12 therein and a base 15 having a transversely extending projection or flange 20 at least a portion of which is accurately located with respect to the light source for giving the lamp a prefocused characteristic, the projection or flange being provided with one or more slots 21 for engaging locking means on the reflector 25. The margin 27 of the opening 28 in the reflector for the passage of the base 15 bears a predetermined relation to the focal point of the reflector. The flange 20 is held against the margin 27 by conically headed pins 24, which pass through the slots 21, holes 29 in the margin 27 and holes 30 in a spring member 31 and are flattened at their ends over the washers 33. The spring member 31 has V-shaped parts 34 which bear against the back of the margin 27. The slots 21 are large enough at one end for the passage of the heads of the pins 24. The pins may have separate springs. The flange 20 is formed in one with the base 15, or forms part of a shell 19 which is adjustable before fixing by soldering or other means.
Patent GB-453371-A (GB)
Title: Improvements relating to the rings of doubling and like frames
IPC: D01H7/62
Filed: 1935-05-10
Abstract: 453,371. Lubricating doubling &c. rings. ARUNDEL, COULTHARD, & CO., Ltd., FLINT, S. O., and RIDGWAY, F., Sovereign Works, Stockport. May 10, 1935, No. 13771. [Class 120 (ii)] The rings of doubling and like frames lubricated by means of a wick are formed with a relatively wide upper surface to accommodate one or more wick grooves b fed by capillarity from a suitable source and communicating with a groove d, which may be inclined, in the inner surface of the ring. The wick, which is shown as a double thread, is led through the hole e, along the groove d, up the hole f, along the groove b, down the hole f and along the groove d to the hole e<1>.
Patent GB-162199-A (GB)
Title: An improved electrically heated perforator
IPC: D06C29/00
Filed: 1920-05-19
Abstract: 162,199. Campbell, A. B. May 19, 1920. Addition to 122,771. Burning, severing by.-In the electricallyheated perforator for cloth &c. described in the parent Specification, the axle is mounted between screw or pin bearings, one or both of which may be adjustable, and is provided with a core of insulating-material which may be built up of discs of mica &c., a central hole being made therein for the passage of the heater leads. The heater elements b are secured in position between the hub d and the rim c by plates e locked bv nuts y carried on the screwed exterior of the hub. Mica discs are forced into the interior of the hub and a central hole j drilled therethrough into the ends of which conical bearing elements g are driven to make contact with leads h passing through radial holes i from the heater elements. Mounted in the frame m of the device by means of internally and externally threaded flanged bushes p are screw terminals r forming bearing points for the parte g and provided with non- conducting milled heads a. Lends u are connected to bushes n and terminals r by nuts o, insulating washers and the collars p being interposed between the frame m and the bushes n. A stand w is provided to raise the perforator wheel above the work when laid down, and the leads f are protected from heat by insulators v threaded thereon. In a modification the terminals r may be formed with bearing cups to receive projections on the parts g.
Patent GB-727258-A (GB)
Title: Improvements relating to fluid blast electric circuit breakers
Inventor: EHRENBERG ARTHUR CHARLES
IPC: H01H33/70
Filed: 1952-05-30
Abstract: 727,258. Gas-blast switches. ASSOCIATED ELECTRICAL INDUSTRIES, Ltd. May 13, 1953 [May 30, 1952], No. 13833/52. Class 38 (5) In a gas-blast switch a plunger contact 1 is provided with an arcing tip 6 of tungsten or other refractory metal and formed with grooves 7 along which blast gas may flow through a co-operating nozzle contact 4 before separation of the contacts, the grooves being arranged for directing the blast at least in part towards a position adjacent the arcing tip to constrain the arc to root on the tip. The contact 1 may comprise a stem 2 with an enlarged head 3 of generally cylindrical shape formed with symmetrically disposed longitudinal grooves 7 having their bottoms sloping inwardly as shown.
Patent GB-474253-A (GB)
Title: Improvements in and relating to safety valves for steam boilers and the like
IPC: F16K17/08
Filed: 1936-05-18
Abstract: 474,253. Safety valves. AULD & SONS, Ltd., D., and GRAHAM, J. May 18, 1936, No. 14005. [Class 135] In a safety valve of the type in which the lift of the main valve 19 can be increased by steam admitted to a piston 26, loose on the main valve spindle 18, by an auxiliary valve 33 which lifts at a predetermined pressure, which may be the same as for the main valve or slightly higher, the casing 20 which encloses the spring 21 acting on the main valve 19 is closed at its lower end, except where the spindle 18 passes through, and is supported by a flanged extension 27 provided with ports 29 to allow steam which escapes past the piston 26 to escape to the atmosphere. The piston 26 is provided with a guide sleeve 25 which acts against the lower spring-carrier 23 to relieve the pressure of the spring 21 and enable the valve 19 to open further.