baber/WOPTO huggingface dataset:
Patent GB-1148185-A (GB)
Title: Improvements in or relating to electronically switched control for direct-current motors
Inventor: SCHUEEPP EDUARD
IPC: H02P7/29
Filed: 1966-07-16
Abstract: 1,148,185. Control of D.C. motors. E. SCHUEPP. 16 July, 1966, No. 32058/66. Heading H2J. When controlled rectifier H 1  is fired by a pulse from source 1G, rectifier H 2  is non- conductive so that motor M is energized through elements D 1 , H 1 , capacitor C being charged through resistor R 2 . Firing of rectifier H 2  by an alternate pulse from source 1G causes the capacitor to be connected across the rectifier H 1  for extinguishing the latter. The armature is shunted by diode D 2  to prevent the inductive discharge from developing a high voltage across the capacitor, which could damage the rectifier H 1 . Diode D 1  prevents the armature voltage from opposing the voltage charging the capacitor, thus ensuring that the extinguishing operation is effective.
Patent GB-189350-A (GB)
Title: Improvements in or relating to electric condensers
IPC: H01G2/08
Filed: 1921-11-30
Abstract: 189,350. Dornig, W. Nov. 30, 1921. Condensers.- A condenser for high.frequency currents is cooled by forcing a cooling medium such as air or oil through intermediate spaces provided between the plates of the condenser. The condenser shown is built up of corrugated metal plates 2 and flat insulating plates 3, and is contained in a corrugated box 1 with inlet and outlet pipes 4, 5 for the cooling-medium.
Patent GB-927226-A (GB)
Title: Improvements in and relating to the contacting and testing of thin fragile structures such as semiconductor devices and the like
IPC: H01L21/60
Filed: 1959-09-23
Abstract: 927,226. Testing semi-conductor devices. PHILCO CORPORATION. Sept. 23, 1959 [Sept. 23, 1958], No. 32373/59. Class 37. Apparatus for precisely contacting a thin profile structure such as a semi-conductor device comprises two pivotally mounted biased control means for engaging opposite sides of the structure, such contacts having a predetermined bias to engage the structure, with means for simultaneously separating them therefrom. For testing a semi-conductor device 10 (Figs. 1, 3) the base tag of the latter is held by a chuck 47 mounted in a holder 46 inserted in a guide 45, and insulating bars 17, 18 are provided about axes parallel to that of the chuck and holder to carry horizontal levers 13, 14 comprising wires 19, 20 and 21, 22 convergent from the pivoted bars to a junction with single wires 15, 16 carrying contactor needles 11, 12 normal thereto and to the respective faces of the test device (e.g. the emitter and collector of a transistor). The insulating bars 17, 18 carry set screws 25 adjustable to gravitationally bias the needles against opposite surfaces of the test device with equal pressures, and the pivot frames 49, 50 are adjustable for position and parallelism on stems (not shown) inserted in sockets 51, 52 and located by adjustable set screws (not shown). Fingers 34, 35 parallel to insulating bars 17, 18 project between the levers from a plate 59 pivoted in frame 57 so that the plate may be tilted by an operating arm (not shown) to lift the contactor needles for exchange of test devices and to allow their restoration under the gravitational bias to restore the opposed contacts. The levers may be electrically connected through thin wires and terminals 40, 41 to known test circuits for punch-through voltage (Fig. 5, not shown) or for avalanche breakdown. A whisker wire attached to the collector surface may be engaged by needle 12 instead of the collector itself (Fig. 6, not shown). The contactor arrangement and the test device may be enclosed in a transparent plastic housing.
Patent GB-406819-A (GB)
Title: Improved cover for protecting dresses and the like garments
IPC: A47G25/54
Filed: 1932-11-16
Abstract: 406,819. Covers for garment-hangers. SPIRA, L., 145, Chatsworth Road, Cricklewood, London. Nov. 16, 1932, No. 32407. [Class 52 (v).] A cover adapted to be placed over the upper part of a dress, coat, &c. when hung upon a coat hanger is made of flexible transparent material and has a single central vertical opening with overlapping edges 3 extending from the top to the lower edge for removing or replacing the cover on the garment without removing the hanger from its support. The back of the cover consists of a single sheet 1 of thin celluloid and the front of two half sheets 2 joined to the back along the upper and side edges 4 leaving an opening 5 at the top for the passage of the coat hanger hook. Fastening means for the front opening comprise a pair of press studs 6. Both the joined and free edges of the celluloid may be bound with tape.
Patent GB-1301158-A (GB)
Title: Process for sizing paper
IPC: D21H19/32
Filed: 1970-07-03
Abstract: 1301158 Carboxylic polysiloxanes; papersizing compositions DOW CORNING CORP 3 July 1970 [5 Aug 1969] 32413/70 Headings C3S and C3T [Also in Divisions D1 and D2] A carboxylic polysiloxane for sizing paper comprises 50-99À9 mol. per cent of units R n SiO (4-n)/2  and 0À1-50 mol. per cent of units HOOCR<SP>1</SP>SiR m(3-m)/2 , wherein R is an optionally substituted hydrocarbon radical, R<SP>1</SP> is a divalent group attached to Si by a C atom, n is 0, 1, 2 or 3 and m is 0, 1 or 2, at least 90 mol. per cent of the siloxane units containing an R radical having at least one methyl radical, at least 90 mol. per cent of the siloxane units containing two organic groups and the average number of organic groups per siloxane unit being 1À8 to 2À1. In examples such polysiloxanes are prepared by cohydrolysis of MeOOC(CH 2 ) 3 SiMe(OMe) 2  with Me 2 Si(OMe) 2  or [Me 2 SiO] 3  (Examples 1 and 2); by addition of acrylic acid to and copolymerization of the product with a cyclic dimethylpolysiloxane (Example 3); and by addition of thioglycolic acid to a copolymer of units Me 2 SiO and MeViSiO (Examples 4 and 5).
Patent GB-964562-A (GB)
Title: Improvements in the drying of natural rubber
Inventor: GYSS PIERRE ROBERT
IPC: B29B13/06
Filed: 1962-08-23
Abstract: A method of obtaining dry natural rubber from coagulum in sheeted, creped, or comminuted foam comprises the step of treating the coagulum with steam either at atmospheric or super-atmospheric pressure before drying. This process shortens drying time and allows of higher drying temperatures. Specification 726,181 is referred to.
Patent GB-457715-A (GB)
Title: Improvements relating to platens for typewriting machines
IPC: B41J11/24
Filed: 1935-11-22
Abstract: 457,715. Typewriters. ROYAL TYPEWRITER CO., Inc., 2, Park Avenue, New York, U.S.A.-(Assignees of Handley, G. F. ; 7030, 83rd Street, Glendale, New York, U.S.A.) Nov. 22, 1935, No. 32481. Convention date, Dec. 29, 1934. [Class 100 (iv)] Paper-supports.-A detachable platen-roller is detachably mounted at one end in the carriage, and is mounted at the other end on a retractable shaft which passes through a bearing opening in the carriage and is provided with a coupling-latch for the platen. The platen B shown in the Figure is supported in the end plates 5, 6 of the carriage by means of detachable shaft D, and a shaft 8 provided with a coupling for the line-spacing wheel. The coupling is of known form and comprises a cup 11 secured to the line-spacing wheel and formed with internal teeth 24 co-operating with a spring-urged toothed disc which is provided with a tongue 27a engaging slots 12, 20 in the shaft 8 and the head 18 of the platen. The shaft D passes through a bearing 30 on the plate 5 and is received by a sleeve C attached to the platen, the shaft and platen being normally coupled by co-operation of the forked end 43 of the shaft with a crosspin 44 in the sleeve. A latch 37 for preventing withdrawal of the shaft is pivoted therein and is held by a spring plunger 41 in engagement with either of a pair of holes 40 in the sleeve. The latch is released by pressing inwards a spring plunger 50 having a coned end engaging a notch 56 in the latch. On release of the latch, the shaft can be withdrawn or detached, and the platen can then be removed from the carriage. The platen and the knob 9 of the shaft 8 are provided with marks which are brought to the top, to ensure that the slots 12, 20 are in register before the platen is removed or replaced. According to the Specification as open to inspection under Sect. 91, the latch 37 may be omitted, in which case the shaft D is formed at the end with a spring-fork having seats for receiving the pin 44. This subject-matter does not appear in the Specification as accepted.
Patent GB-647880-A (GB)
Title: Improvements in and relating to collapsible camp beds
IPC: A47C17/70
Filed: 1949-12-19
Abstract: 647,880. Bedsteads. MOLNAR, B. Dec. 19, 1949, No. 32495. Convention date, Jan. 14. [Class 52 (ii)] A collapsible camp bed comprises longitudinal and transverse bars or tubes a, b each provided at each end with a sleeve d, f respectively arranged at rightangles to the bar &c. which sleeves are threaded on to upright legs c provided with abutments g. Bed supporting surfaces or sheets i, h are arranged one above the other, one sheet being carried by the bars a and the other by the bars b by means of hems. If it is desired to arrange beds in tiers one end of each leg is constructed as a socket into which the other end of a corresponding leg is fitted. Instead of sleeves d, f rings may be provided on the ends of the bars a, b. Carrying handles k are fitted to the abutments g if desired. The bars &c. a, b may be constructed as two or more connectible parts.
Patent GB-978228-A (GB)
Title: Improvements in or relating to switching apparatus for magnetic transducers
IPC: G11B15/14
Filed: 1962-08-23
Abstract: 978,228. Switching recording &c.heads. AMPEX CORPORATION. Aug. 23,1962 [Sept. 12,1961], No.32512/62. Heading G5R. A local circuit for four heads 16-19 scanning a tape 21 transversely uses only two record and two playback head amplifiers. On record, the heads within the 180 degrees arc indicated are fed by amplifiers 76, 77 connected to opposite pairs of heads through the 180 degrees segments 26-29 with appropriate equalisers 86-89 in each head circuit. On playback, the heads are fed via brushes 36-39 to playback amplifiers 42, 52 alternately rendered operational by a switch means 44 operated by a switching circuit 63 controlled by exact 90 degrees segments 57-58 preventing dual playback in the overlap period.
Patent GB-898126-A (GB)
Title: Improvements in and relating to guide combs for lace machines
Inventor: BAHLS KLAUS WOLFGANG
IPC: D04C5/00
Filed: 1960-09-22
Abstract: 898,126. Lace machines. AMERICAN FABRICS CO. Sept. 22, 1960, No. 32541/60. Drawings to Specification. Class 74 (1). The guide comb for the bobbin carriages of a Levers Lace machine is formed from an integral member comprising a single piece of a synthetic resin, such as nylon, having selflubricating properties. The member is formed with a plurality of grooves defining guide blades for the carriages.
Patent GB-1577178-A (GB)
Title: Rotary cam and cam follower arrangement
IPC: F01L13/00
Filed: 1977-08-03
Abstract: In a reversible reciprocating piston internal combustion engine, especially for the propulsion of ships, with control cams (5, 6) arranged on a displaceable camshaft (9), which cams in the reversing direction each have rising lifting flanks (12, 13) for the tappets (7) interacting with the control cams, it is proposed that the control cams be designed so that only relatively small and essentially constant reversing forces are necessary over the displacement travel of the camshaft. This object is achieved in that the contour of each lifting flank (12, 13) rises non-linearly in the reversing direction and comprises a plurality of sections (14, 15) with different slopes. A bottom section (14) which extends approximately to half the cam height here has a steep slope, whilst up to the full cam height at least one further adjoining section (15) has a less steep slope. <IMAGE>
Patent GB-1360319-A (GB)
Title: Water-insoluble mono azo dyestuff
IPC: D06P3/00
Filed: 1972-07-12
Abstract: 1360319 Monoazo dye FARBWERKE HOECHST AG 12 July 1972 [27 July 1971] 32604/72 Heading C4P The new water-insoluble monoazo dye of formula is prepared by coupling diazotized 2-cyano-4- nitro-aniline with N-(#-cyanoethyl)-2-chloroaniline. The dye gives reddish-orange shades on synthetic, in particular polyester, fibres.
Patent GB-611520-A (GB)
Title: Improvements in or relating to d.c. operated impulse clocks and clock systems
IPC: G04C13/04
Filed: 1945-12-03
Abstract: 611,520. Electric clocks. RIMMINGTON, F. Dec. 3, 1945, No. 32627. [Class 139] A D.C. operated impulse clock or clock system, wherein the electric supply to the master clock and any slave clocks driven thereby is normally derived, after rectification if necessary, from the mains supply and wherein a battery of dry cells is also provided together with changeover switch mechanism which automatically operates upon failure of the mains supply to switch over the master clock and any slave clocks to the battery of dry cells. The arrangement is as shown in Fig. 1 wherein a master clock of known construction (within the dotted area) sends an impulse every minute to a relay IR which operates its contact IRa to step forward the. slave clocks P, Q &c. The master clock is also provided with a synchronizing magnet S which, as described later, receives an impulse once every twenty-four hours, from synchronizing apparatus, and applies a correction to the count wheel of the master clock. Two alternative sources of electric supply for actuating the master clock and the synchronizing apparatus are provided; the rectified mains supply A and the battery of dry cells B. A supplementary battery B<1> is provided to step up the voltage to a set of relays of the synchronizing apparatus when the battery B is being used. The synchronizing apparatus has six relays R1/a, R2/c, R3/c, R4/d, R5/a, R6/a and a synchronous motor M which co-operates with the relay R1/a to produce a series of impulses of approximately one second duration at minute intervals which impulses pass to the relay R5/a. By the co-operation of a sixty toothed wheel 12, an arm 14 and a contact R5a the relay R5/a allows every sixtieth impulse from the relay R1/a to pass to the relay R6/a. By the co-operaion of a twenty-four toothed wheel 17, an arm 16 and a contact R6a the relay R6/a allows every twenty-fourth impulse which it receives to pass to the synchronizing magnet S which is thus energized once every twenty-four hours to apply a correction to the master clock. A trigger pin TP on the motor shaft and the relays R2/c and R3/c co-operate to Ensure that after a mains failure the relay Rl/a sends its impulses at the original phase relationship relative to, the master clock impulses. Upon a mains failure relay R4/d automatically changes over the supply to the batteries B and when the mains supply resumes relay R4/d automatically switches the system back to the position shown. During a mains failure the relays R5/a and R6/a receive and store impulse from the master clock but as contact R4c has been opened by its relay R4/d no synchronizing impulse is sent to the magnet S.
Patent GB-1488432-A (GB)
Title: Means for stabilizing floating vessels
IPC: B63B39/02
Filed: 1975-08-05
Abstract: 1488432 Stabilizing vessels SOUTHWESTERN INDUSTRIES Inc 5 Aug 1975 32701/75 Heading B7M A passive roll stabilizer comprises a mass 18 which is free to roll athwartships along a track defined by housing 16 and limited by deform, able end-stops 22, 24 which absorb the energy of the mass without rebound. The mass preferably has rollers 20 guided in a slot in the housing, which may be mounted at the top of a mast by means of a socket 34. The stops 22, 24 are preferably blocks of foamed plastics, e.g. polyurethane, which deform when struck by the mass, but returning gradually to their original shape in time for the next impact. A releasable latching mechanism, Fig. 4 (not shown), may be operated to lock the mass relative to the housing, and the end-stops may be in the form of hydraulic dash pots, Fig. 5 (not shown).
Patent GB-1196113-A (GB)
Title: Improvements in or relating to Chimneys for Fuel Burning Heaters
Inventor: JENNINGS RICHARD ERNEST ABRAHA
IPC: F23L9/04
Filed: 1966-07-21
Abstract: 1,196,113. Chimney dampers. R. E. A. JENNINGS. 19 July, 1967 [21 July, 1966], No. 32787/66. Heading F4W. A damper assembly attached by a pipe 6 to a stove chimney comprises a housing 9 with a front cover 10 through which extends a short pipe 12 associated with a grill 11, a semicircular flap valve 13 controlled manually by handle 15, and a pivoted flap valve 18 blown against the angled inner end of the pipe 12 by pressure in the chimney when the stove is in operation. The equipment is disposed in and opens into the wall of a room containing the stove, so that warm air from the room may enter the chimney through valve 18 when the stove is idle.
Patent GB-1440362-A (GB)
Title: Welding material for austenitic stainless steels
IPC: B23K35/30
Filed: 1973-07-10
Abstract: 1440362 Welding material - welding flux MITSUBISHI JUKOGYO KK 10 July 1973 [10 July 1972 (2) 31 July 1972] 32823/73 Headings C7A and C7M [Also in Division B3] A material for welding stainless such as to form weld deposits of composition:- Fe and impurities balance and containing up to 5% delta ferrite. The tantalum may be transferred to the weld deposit either from filler metal (core wire) containing 0.5 to 7.5% Ta or from electrode flux coatings containing 0.8 to 30% Ta or from both the filler metal and the flux coating. The welds may be produced by shielded arc welding, submerged arc welding or inert gas shielded arc welding. A suitable alloy composition for the filler metal in inert gas shielded arc welding and for the core wire of coated electrodes consists of:- Fe and impurities balance and may be prepared from a melt of electrolytic iron, ferrochrome, ferronickel, ferromanganese, ferros-silicon and tantalum, the resulting alloy steel being drawn into wire form and used for inert gas welding (e.g. T1G welding 6 mm. thick stainless steel plate of JIS G4304 with an argon flow-rate of 10 litres/min, a 3.2 mm. diameter thoriatungsten electrode and a D.C. arc of 25UA). A suitable Ta containing electrode flux coating contains CaCO 3  32% TiO 2  25% CuF2 25% Mn 5% Cr 5% Nr 3% Fe-Si (80% Si) 2% Ta 3% and may be utilized by kneading the above composition with an aqueous solution of sodium silicate and applying the mixture to filler metal (core wire) of austenitic stainless steel and drying for 3 days at room temperature, heating to 250C to 300C for 6 hours and the so formed electrode used to weld 6 mm. thick stainless steel plate JIS G4304 with an A.C. arc at a current of 140A.
Patent GB-1044277-A (GB)
Title: Non-magnetic anti-tank mine, insensitive to explosion blast and to shocks
Inventor: KRAHENBUHL CARLO
IPC: F42B23/00
Filed: 1964-08-12
Abstract: 1,044,277. Anti-tank mines. A.E.B.I. Aug. 12, 1964, No. 32893/64. Heading F3A. A non-magnetic mine has a pneumatic operating device with a striker moving against an element which breaks under an applied load; the pneumatic device and the mine casing are made of plastics and there is a train of explosive charges. The operating device comprises a body A with a recess a 1  accommodating a striker B and a flexible diaphragm C held in place by a rigid disc D having a calibrated passage d 1  to provide communication between two chambers X, Y. A deformable lid G is connected to the body A by a resilient ring g 2  while a plug M is screwed into the body and holds a calibrated element L which has the form of a spoked wheel and supports a shoulder of the striker B carrying a firing pin. Application of a load deforms the lid G and air in the chamber X flows along the passage d 1  into the chamber Y to act on the diaphragm C and when the corresponding load transmitted to the element L is sufficient to break the element the striker and pin move axially to initiate charges N, P, Q, V and Z, the two latter charges being formed in layers. The casing of the mine is completed by a wall U with a handle K and a base W with a plug J. All parts except the firing pin and charges are made from thermoplastic materials. An embodiment shows the striker made in two pieces and the calibrated element made of anodized aluminium.
Patent GB-1200559-A (GB)
Title: Apparatus and method of detecting leaks
IPC: G01M3/28
Filed: 1968-07-10
Abstract: 1,200,559. Fluid operated fastenings. DRESSER INDUSTRIES Inc. 10 July, 1968 [18 July, 1967], No. 32975/68. Heading E2A. [Also in Division G1] A pressure differential detector 24 (see Division G1) includes an indicating plunger 64 releasably locked in a retracted position within a housing 30 by a device 90. The device 90 comprises stem 96 attached to a flexible diaphragm 36 separating fluid chambers 32, 34. A fall in pressure in the chamber 34 causes downward movement of the stem 96 so that spheres 76, held between a retainer ring 74 and a shoulder 82 of the housing, enter a bore 78 thereby releasing the plunger 64 which is urged upwardly by a spring 72. The indicator may be manually reset by depressing it back into the housing.
Patent GB-975588-A (GB)
Title: Fluid pressure regulating valve
IPC: F15B15/08
Filed: 1963-08-21
Abstract: 975,588. Valves; clutch control. CLARK EQUIPMENT CO. Aug. 21, 1963 [Nov. 7,1962], No. 33053/63. Headings F2L and F2V. In a fluid pressure regulating valve for automatically reducing the pressure of fluid supplied to forward and reverse transmission clutches, to permit " inching" in a fork lift truck as the brakes are applied, fluid from an engine driven pump 14 is normally supplied from an inlet port 62, via an annular groove 86 in a spool member 44, to an outlet 68 leading to either clutch 20 or 22, as selected by a manuallyoperated spool selector valve 18. In the normal position (Fig. 3, not shown), the spool 44 abuts a stop member 74 upon the spindle 98 of an inner spool member 36 under the force of fluid pressure from outlet 68 acting, via a connecting passage 92, within a recess 94 against a regulating spring 40. When the brakes are fully applied fluid from the brake master cylinder acts upon piston 24, connected to rod 34, to displace the inner spool member 36 until, upon abutment of inner spool flange 96 with outer spool member 44 and the displacement thereof, the outlet 68 to the clutches is connected to exhaust port 70. Upon partial application, Fig. 2, of the brakes with the piston 24 in an intermediate position the pressure in the outlet 68 is determined by balance of the spool 44 between the tension in the spring 40 and fluid pressure in recess 94. As the brakes are applied, the spring 40 is extended and the tension thereof reduced, when the pressure in the outlet 68 is accordingly reduced. Specification 881,509 is referred to.
Patent GB-1172919-A (GB)
Title: A Method for Preparing Pancreatic Heparinoids
IPC: C08K13/02
Filed: 1967-07-19
Abstract: 1,172,919. Pancreatic heparinoids. MICRON DI BIANCHINI DOTTOR PIETRO & C.- S.N.C. 19 July, 1967 [22 July, 1966], No. 33071/67. Heading A5B. Pancreatic heparinoids are prepared by:- (a) subjecting mammal or fish pancreas to proteolysis by adding to the bulk or mass an aqueous alkaline solution of pH 7-8.5 comprising at least one antibiotic acting as bacterial floro inhibitor which is penicillin in an amount of 10,000-50,000 units of activity per kg of pancreas, or a tetracycline or chloramphenicol in an amount of 5-50 mg/kg of pancreas; (b) maintaining the suspension at 20-50‹C for 12- 48 hours out of contact with air; (c) heating at 70-100‹C for 10-45 minutes (d) separating the proteinous parts from the suspension; (e) subjecting the liquid obtained by separation; after adjusting it to a pH of 5-6.5 with an acid, to a treatment with a polar organic solvent in an amount of 2-5 vols/vol of liquid obtained and (f) allowing it to settle and collecting a hypophase having a high content of low molecular weight heparinoid. The alkaline solution of stage (a) may contain trypsin, chymotrypsin or papain. The proteolysis may be carried out in the presence of a reducing agent such as sodium hypophosphate or cysteine.