baber/WOPTO huggingface dataset:
Patent GB-930190-A (GB)
Title: Method of and apparatus for grinding solid material
IPC: B02C17/00
Filed: 1960-11-03
Abstract: 930,190. Grinding. HARDINGE CO. Inc. Nov. 3, 1960 [Nov. 12, 1959], No. 37800/60. Class 59. A method of grinding solid material comprises the steps of treating an elastic fluid to provide it with desired characteristics, introducing said treated elastic fluid together with solid feed material into the feed entrance of a grinding mill which is substantially unprotected relative to the passage of said solid material and untreated surrounding elastic atmospheric fluid, causing said elastic fluid to flow through the mill, withdrawing said elastic fluid from the exit of the mill, and regulating the pressure of the treated elastic fluid discharged into the unprotected feed entrance of the mill to produce at said feed entrance a predetermined pressure operable to control the inlet of any of the surrounding untreated atmospheric elastic fluid to the mill through said feed entrance as desired. As shown in Fig. 1, material 18 is supplied by means of a conveyer 20 and feed shoot 14 to the feed opening 22 of a mill 10 through which air is circulated by means of a fan 38, conduits 30, 40 and a classifier 26. A heater 50 located at the pressure side of a fan 54 to which air is supplied by an inlet tube 52 controlled by a damper 56, supplies hot air through a conduit 62 to the feed opening 22. Conduits 40, 62 have branch conduits 42, 64 which deliver into a collector 46 the upper end of which communicates with a fan 68, the inlet tube 70 of which is controlled by a damper 72. The pressure differential at the feed opening 22 may be controlled by a draft gauge 76 connected electrically to a control panel 78 which is connected to motorized modulating control linkages 80, 82 whereby the dampers 56, 72 may be controlled. In a modification, Fig. 5, a blower 165 introduces air under pressure to a heater 166, the outlet of which communicates with the feed and discharge ends of a mill 172 by means of conduits 170, 168. Material and moistureladen air is drawn through grate 176 and any oversize material from classifier 178 is discharged back into the interior of the mill. Fine material from the classifier may be delivered to a classifier 184 any oversize from which is returned by conduit 186 to the feed end of the mill while fine products from classifier 184 are withdrawn by a fan 188 controlled by damper 190. In a further modification, Fig. 6, the circulating system for the interior of a mill 198 comprises a fan 200, the pressure end of which is divided between conduits 202, 204, conduit 202 communicating with the lower portion of the mill so as to direct a current of air from the lower to the upper portion thereof for entraining the finer products produced by the mill for removal therefrom. The inlet end of fan 200 communicates with a product collector 206. Conduit 204 communicates with a dust collector 216. The system is supplied with hot air by a heater 220 connected to the pressure side of a fan 224 controlled by a damper 228.
Patent GB-302737-A (GB)
Title: Manufacture of artificial resins
IPC: C08G12/02
Filed: 1928-12-21
Abstract: 302,737. Soc. of Chemical Industry in Baste. Dec. 21, 1927, [Convention date]. Urea-formaldehyde condensation products.- Water-insoluble resins are produced by adding to a urea-formaldehyde reaction mixture before or at any stage in the condensation, in an alkaline medium, a substance capable of forming with formaldehyde or its condensation products with urea or its derivatives in presence of OH ions a water-insoluble resin, and then further heating until on cooling or mixing with water, a waterinsoluble resin separates. The additional substances mentioned are aromatic amines such as aniline and naphthylamine and their derivatives such as anhydroformaldehydeaniline, substituted ureas or urea derivatives such as thiourea and phenyl urea, cyanamide and its derivatives such as dicyandiamide, urea, acid amides of high molecular weight such as biuret, mono- and polyhydric phenols such as phenol, resorcinol, naphthol, pyrogallol and its derivatives such as tannin, phenol-formaldehyde condensation products, and sulphurized phenol resins. For use in Jacquers, the products may be separated at a stage where they are soluble in alcohol. If the agents added are not sufficiently soluble, organic solvents such as alcohol or acetone may be added. The resins may be hardened in alkaline mediums and are therefore suitable for use with basic pigments such as zinc white, white lead, ferric oxide &c. and for application upon basic materials. In the examples, (1) urea, phenyl-urea, and formaldehvde are mixed with caustic soda solution and boiled for 4 hours, the resin being precipitated by water; (2) urea, thiourea, and formaldehyde are heated with caustic soda solution; (3) urea is dissolved in 40 per cent formaldehyde and the solution clarified by active carbon; it is then heated to 100‹ C. until a sample yields a milky precipitate on treatment with water, and it is then boiled with (i) phenyl urea, thiourea, or aniline and caustic soda, (ii) dicyandiamide and ammonia, (iii) urea, biuret, anhydroformaldehydeaniline or #-naphthylamine and caustic soda, (iv) phenol and hexamethylene tetramine, (v) soluble phenol-formaldehyde condensation product, alcohol, and caustic soda, (vi) liquid sulphurized phenol resin, alcohol, and ethylene-diamine, (vii) #-naphthol, alcohol and hexamethylene-tetramine.
Patent GB-1276538-A (GB)
Title: Improvements in and relating to electric signal circuits
Inventor: TOMITA MASAO
IPC: H04B3/06
Filed: 1969-07-29
Abstract: 1276538 Automatic gain control MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 29 July 1969 [29 July 1968 (2) 31 July 1968 (2) 20 Sept 1968 29 Nov 1968 (2) 18 Jan 1969 20 Jan 1969 (2)] 37930/69 Heading H4R In an automatic gain control system a number of gain controlling circuits M1, M2, M3 each comprising diodes, 19 and 20, are arranged in shunt with a signal path containing a series resistor 34. The diodes are biased to a low resistance condition by the current through resistors 140, 240, and 340 from a D.C. supply, and the bias is backed off by a potential derived from the incoming signal via amplifier 33 and diodes 15 and 31, so that when the input signal exceeds a predetermined threshold value the diodes, 19 and 20, are back biased to a high impedance condition. The various circuits M1, M2, M3, are arranged to have different response to changes in signal level, either by having different initial bias via different resistors 140, 240, and 340, or by being fed with different proportions of the signal level, Fig. 2 (not shown), or by varying the frequency characteristic of the inserted impedance by the inclusion of different capacitors 36 in series with the shunt impedance formed by the diodes 19, 20. Alternatively the gain controlling circuits can be arranged in series with respective filters in parallel in the signal path.
Patent GB-880588-A (GB)
Title: A drinking fountain adaptor for attachment to a water tap or faucet
IPC: E03C1/086
Filed: 1959-11-10
Abstract: 880,588. Fountains. ELVES, V. G., and ELVES, R. W. J. Nov. 10, 1959 [June 3, 1959], No. 38002/59. Class 69 (1). A drinking fountain adaptor device which is made of rubber or other resilient material is provided for attachment to the spout of a tap and is so formed that one end fits snugly over the tap and the other end may be temporarily closed by finger pressure on small restrictor buttons 2 (Fig. 1) to divert part of the flow of water through a jet passage 4 (Fig. 4). A deflecting lip 5 is provided to prevent water passing up the jet passage when water is flowing through the bore 3 during normal use. In a modification shown in Fig. 6 the deflector is formed in several portions 5a which provide a base for a screen.
Patent GB-1401574-A (GB)
Title: Knitting machines
IPC: D04B15/00
Filed: 1973-08-10
Abstract: 1401574 Knitting machines EDOUARD DUBIED & CIE SA 10 Aug 1973 [11 Sept 1972] 38022/73 Heading D1C In a needle bed for a flat-bed knitting machine, lower and upper jacks 13 and 10 are separated by jack cover strips 11, 12 supporting jacks 10 above which jacks there are jack top strips 8, 9 disposed above the jack cover strips 11, 12 and of greater width. As shown, needles 15 are held by strips 5, 6 and are engaged by jacks 16 held by a cover strip 7 and engaged by lower jacks 10. The rear base 42 of each trick is lower than the front base 41 the two parts being connected by a curved part. Jacks 13 have three parallel sections 132, 133, 134, the first and third of which bear on bases 41, 42 respectively.
Patent GB-323113-A (GB)
Title: A process for the production of ammonium formate
IPC: C07C51/41
Filed: 1928-12-24
Abstract: 323,113. Jones, F. W. Sefton-, (Lonza Elektrizitõtswerke und Chemische Fabriken Akt.-Ges.). Dec. 24, 1928. Ammonium formate in the solid state is obtained by adding dry calcium formate to a solution of ammonium formate, saturated at about -10‹ C., and then adding ammonium carbonate or ammonia and carbon dioxide at temperatures up to 100‹ C., when solid ammonium formate separates out. The mother liquor is used in a new operation.
Patent GB-1476606-A (GB)
Title: Wire bonding method and apparatus
IPC: H01R43/02
Filed: 1975-09-16
Abstract: 1476606 Welding by pressure UTHE TECHNOLOGY Inc 16 Sept 1975 [16 Sept 1974] 38101/75 Heading B3R In a method of wire bonding, on an electrical circuit, wherein a wire 10 extending through a capillary tool 12 is bonded to separate circuit points, e.g. 16, 18, the wire is severed, to form integral balls 28, 30, by resistive heating of the wire between the capillary tool and the last circuit point to which wire is to be bonded, e.g. as shown, 18. The ball 30, adjacent the capillary tool 12, may then be used for bonding to the first circuit points of the next sequence of separate circuit points, e.g. as shown, 16. In operation, following the wire bonding to the last circuit point 18 switch (44), (Fig. 5, not shown) in a current supply circuit (24), is closed, current flows through a resistor (40) thereby charging a capacitor (42) and building up the base bias voltage of a transistor (38). The transistor becomes less conductive and a uniformly decreasing current (Fig. 6, not shown) is developed between the terminals 46, 48 of the circuit. The terminals 46, 48 are connected via the circuit point 18 and through a chuck control 26, the capillary tool 12 and capillary collet 14 to opposite ends of the portion of the wire to be severed. On severing, the chuck control 24 causes the capillary to move to another workpiece. The decreasing ramp current guarantees ball formation.
Patent GB-855628-A (GB)
Title: Improvements in electric motor driven pumps
IPC: F04D13/06
Filed: 1957-12-10
Abstract: 855,628. Centrifugal pumps. FOSTORIA CORPORATION. Dec. 10, 1957 [April 24, 1957], No. 38378/57. Class 110 (1). [Also in Group XXXV] In a motor pump unit with a partition between the stator and rotor, some of the pumped liquid has access to the rotor chamber via a rotary screen disposed between the impeller and a bearing secured to the partition, liquid returning to the impeller by a hollow rotor shaft. As shown, the screen 61 is rotary and has a flange extending into a groove in bearing 55 which has ducts 57 to enable liquid to flow over the rotor and grooves 59 to enable thrust bearings 54 to be lubricated, the liquid returning to the impeller through the hollow shaft. The partition 15 and an enclosure for the rotor are of non-corroding material such as stainless steel while impeller chamber 30 including a plate 17 lining one of its sides may also be of this material or of titanium. Specification 802,301 is referred to.
Patent GB-1346260-A (GB)
Title: Occupant restraint system
IPC: B60R21/26
Filed: 1972-08-17
Abstract: 1346260 Vehicle crash bags GENERAL MOTORS CORP 17 Aug 1972 [27 Aug 1971] 38404/72 Heading B7B [Also in Division F4] In a vehicle crash restraint system including a crash bag inflatable from a pressurized gas source 15, gas flow from the source is controlled so as to be relatively slow on low impact crash and higher on high impact crash. In a first embodiment, Fig. 2, the source is closed by a plug 36 having a through bore 40, stepped at 50, and a head 44. The head carries a further plug 48 having a through bore 54 closed by a diaphragm 56. An annular weakened portion 42 is situtated adjacent step 50, and detonators 58, 64 are placed adjacent step 50 and diaphragm 56 respectively. On low impact crash diaphragm 56 is ruptured and gas supplied to the bag via bore 54. On high impact crash both detonators 58 and 64 are fired, the former blowing off the head 44 to allow gas to flow unrestricted through bore 40. In another embodiment, Fig. 3, the source is closed by a plug 72 having through bore portions 74, 76 separated by a diaphragm 78. The inner end of the plug carries a cruciform plate 84 having a central orifice tube 86 with a lesser diameter than that of bore 74. On low impact crash detonators 80 open the diaphragm 78 and the gas flow is controlled by the orifice tube 86. At high impact detonators 92 additionally blow off the plate 84, and gas flows unrestricted through bore 74. The control circuit (Fig. 5, not shown) for the detonators includes a pressure transducer (96), adapted for vehicle bumper mounting, and a first inertia switch (98), each set for actuation at a predetermined minimum value of crash impact. A further inertia switch (102) is set for actuation at a higher impact. At low impact the transducer and first switch actuate detonators 64 or 80, and on higher impact the second switch is additionally closed to fire detonators 58 or 92.
Patent GB-1356980-A (GB)
Title: Magneto-optical data stores
IPC: G11B11/105
Filed: 1971-08-17
Abstract: 1356980 Magneto-optic storage systems SIEMENS AG 17 Aug 1971 [3 Sept 1970] 38427/71 Heading H3B In a magneto-optic storage arrangement data is stored in a magnetic material such as Mn-Bi by first heating the storage region above its Curie temperature with a beam of. radiation while subjecting it to a magnetic field to premagnetize the region, and then scanning the region with a modulated radiation beam while a magnetic field is applied in an opposite direction to that of the premagnetizing field. Fig. 1 shows the storage plate Sp surrounded by a coil SU; radiation from a laser LA passes through a first deflector Y, a polarizing modulator MO, a fixed polarizer PO, a second deflector X, and a focusing lens Fo. A scanned beam is thus incident on the storage plate and is used for writing or reading, the latter using the laser at a reduced power. To write a "0" the laser beam from MO is a pulse of constant polarization, while to write a "1" the polarization is reversed half way across the storage region, Fig. 2 (not shown). Reading may be by transmission or reflection, the former being shown in Fig. 1 and using an analyser AN, detector LD arid a circuit LE which controls the beam positioning. The scanning is by rotating reflectors such as the hexagonal drum G in Fig. 9. This Figure also shows a beam splitter SI which extracts a reference beam after the modulator. This beam is not amplitude modulated as it has not passed through polarizer PO. The reference beam is incident on a region of the storage plate which has a pattern of varying transmission, so. that by analysing the transmitted intensity of the reference beam its position is accurately known, this information being fed back to the deflectors by circuit LE to control the positioning of the main beam and also the output of the modulator.
Patent GB-1020205-A (GB)
Title: Improvements in and relating to the handling of timber
IPC: B65G57/18
Filed: 1963-09-30
Abstract: 1,020,205. Endless conveyers; stacking-machines. R. L. AITKEN. Aug. 17, 1964 [Sept. 30, 1963], No. 38460/63. Headings B8A and B8C. Sawn timber is stacked on a trolley 14 (Fig. 4, not shown) by feeding it from a planer (not shown) by spiral rolls 22 on to a stop (not shown) in alignment with an endless conveyer 12, the elevation of which is adjustable by the operation of an hydraulic cylinder 26. The conveyer 12 feeds a delivery conveyer 13 which is maintained at a fixed downward inclination by a parallel linkage 31. When a stack of desired height is formed, a trolley 15 carrying the conveyers is suitably moved on wheels 16, and a second stack is formed. The stacks are topped by a spacer 18 (Fig. 4) and then a further set of stacks are built up on top and so on. In a modification (not shown), the conveyers may be fixed and the trolley may be movable laterally. In a further modification, the trolley and conveyer are not arranged for movement relative to each other but the conveyer is moved laterally after the completion of each stack so as to enable a pusher to be moved into alignment with the stack which is thereby pushed out of the way of the next succeeding stack to be formed. The spiral rolls 22 may be replaced by a conveyer which feeds the timber laterally with respect to its length against a side-stop (Fig. 6, not shown).
Patent GB-1156698-A (GB)
Title: Improvements in or relating to a Method and Apparatus for Determining and Controlling the Degree of Saturation of Adsorbents.
IPC: B01D53/26
Filed: 1966-08-26
Abstract: 1,156,698. Measuring moisture content electrically. VEREINIGTE OSTERREICHISCHE EISEN-UND STAHLWERKE A.G. Aug. 26, 1966 [Sept. 17, 1965], No. 38466/66. Heading G1N. In an air dehumidifier 1, Fig. 1, the degree of saturation of an adsorptive gel through which the air passes is measured in terms of the difference in temperatures between the inlet 2 and a region 4' inside the dehumidifier, as measured by thermocouples 5, 6. The adsorption of moisture by the gel causes heat to be released, thereby raising the temperature of the outlet gas. When the gel is dried by a regenerating gas, heat is absorbed and the thermocouples indicate when drying is complete. The zone of the gel in which dehumidification takes place moves progressively through the gel in the direction of air-flow as the gel becomes exhausted, and the movement of this zone is detected by placing a plurality of differential thermocouples with one junction (5, Fig. 2, not shown) of each at the inlet 2, and the other junctions at spaced points (6, 6a, 6b) in the dehumidifier column (1). Each differential thermocouple is connected to a respective amplifier (12, 12a, 12b) which operates a respective lamp (13, 13a, 13b) to indicate degree of saturation of the gel. The output signals (21, Fig. 3, not shown) of differential thermocouples (5, 6) may be used, alternatively, to operate air-flow gates (15, 16) so as to switch the air to be dried (17) from one dehumidifier column (1a) to a second column (1) upon complete saturation of the gel in the first column (1a). At the same time regenerating gas (18) is switched from the second column (1) to the first column (1a) to restore the gel.
Patent GB-834128-A (GB)
Title: Improvements in or relating to core formers for concreting
IPC: B28B7/28
Filed: 1956-12-18
Abstract: 834,128. Ground anchors. KEATING, F. Dec. 16, 1957 [Dec. 18, 1956], No. 38505/56. Class 45. [Also in Group X] A rectangular socket for a mast beam or building pillar adapted to be concreted in a hole comprises two L-section parts 10, 11 connected together by interfitting sliding edges. One of the sliding edges of each member has a flange 18 and the other an additional strip 12 welded on to form a slot.
Patent GB-303448-A (GB)
Title: Improvements in collapsible umbrellas
IPC: A45B19/04
Filed: 1928-12-31
Abstract: 303,448. Haupt, H. Jan. 3, 1928, [Convention date]. Telescopic; ribs, stretchers, and ties; sticks.- A telescopic umbrella is provided with telescopic arms 12, 13, Figs. 1 and 5, each consisting of channelled bars' connected by a sliding sleeve 14 on the bar 12 and a U-shaped member 15 connected to the bar 13. The bars are locked in their extended position by a pawl 23 pivoted on :a pin 16 and having a nose 25 spring pressed into an aperture 26 in the member 12. When the umbrella is collapsed a stretcher rod 18 will engage the tail 27 of the pawl 23 so that the nose is withdrawn from the aperture 26 and the bar 13 can telescope along the bar 12. In the form shown, the umbrella stick comprises three telescoping parts 1, 2, 3 and a tubular handle 4. When the stick is pulled out, the handle 4 is locked by a spring detent 5. The parts 1, 2 are locked by a pawl 7 which can be unlocked by a member b on the rod 3 engaging a nose 9 and face 10 of the pawl. The stretcher 18 is connected to a runner 19 which is held in the outward position by a catch 20, and in the inward position by spring pawls 21, 22, Fig. 3.
Patent GB-1352427-A (GB)
Title: Transistor amplifier
IPC: G11C7/06
Filed: 1971-08-18
Abstract: 1352427 Transistor amplifiers; latches INTERNATIONAL BUSINESS MACHINES CORP 18 Aug 1971 [22 Sept 1970 (2)] 38664/71 Heading H3T A pair of common base mode transistors T1, T2 with their bases connected together provides an output between the collectors, which under quiescent stable conditions is arranged to be zero by the bias circuitry when a predetermined quiescent current is flowing to the input terminal (from T1, R3). This quiescent current is, for example, 0À9 mA. A "0" or "1" from a memory array (not shown) decrease or increase the input current to 0À2 or 2À0 mA. respectively, and the collectors of T1, T2 correspondingly cause output signals at A, B to differentially change, these being applied to a latching circuit (Fig. 2). The threshold current is determined by the difference between the current in R2 and the total current in R1 and T8, to ensure that T1, T2 normally carry equal currents. Positive noise currents at the input are diverted by T3 to a supply + 2 v. which also supplies the memory array; and T3, T4 also serve to impress variations in the +2 supply upon the bias circuitry R1, R2 &c. to correspondingly vary the threshold current to compensate these supply variations. Further modifying of the threshold current is effected by T8, R26, T5, T47 to compensate for temperature variations of the amplifier and the array, and also to compensate for fluctuations of the -3v. supply. The use of T8, R26 moreover enables the R1 to R2 ratio to be adjusted to improve response to the + 2 v. variations. The latching circuit (Fig. 2) responds to A, B only when a set signal goes low to lower T39 emitter and turn T38 off so that T37 is on. T37 collector current flows through T24 when A is down and B up (1) so that T30 base is high and T31, T32 give a high output. Also, T24 holds T28 base low so that T27 base is low, and as T26 base is normally low in the absence of a positive reset pulse, T25 has the highest base of T25, T26, T27. Thus when the set signal stops, and T39 base goes high so that T38 turns on and T37 off, current flows in T25 to hold T28 base low and so latch T27 off to keep T30 base high; changes of A, B have no effect as T37 provides no current to T23, T24. When a "0" is received, A is high to lower T30 base, and B is low to raise the bases of T28, T27. Thus T27 conducts when the set pulse ends (T25, T26 off) and holds T30 base and the output low. Other diode chains are included for further temperature compensation.
Patent GB-927973-A (GB)
Title: Improvements in or relating to clamping devices for sealing rings
IPC: F16J13/02
Filed: 1961-10-31
Abstract: 927,973. Valves. H. W. WALDENMAIER, [trading as JOHANNES ERHARD H. WALDENMAIR ERBEN SUDDEUTSCHE ARMATURENFABRIK]. Oct. 31, 1961 [Oct. 13, 1960], No. 38899/61. Class 135. A butterfly valve closure member comprises a valve disc 3, stepped to receive a clamping ring 4, between which is held a sealing ring 5 of circular or other cross-section. The ring is secured to the disc by bolts 8 and stop bolts 9 are provided to determine a gap 10 between the ring and disc. The bolts 9 are adjustable to vary the gap which determines the stressing of the sealing ring. The clamping ring and disc are shaped at 6 and 7 to conform to the cross-section of the ring.