baber/WOPTO huggingface dataset:
Patent GB-383223-A (GB)
Title: Improvements in cystoscopes
IPC: A61B1/12
Filed: 1932-06-27
Abstract: 383,223. Rinsing cystoscopes. WOLF GES., G., 18, Karlstrasse, Berlin. June 27, 1932, No. 18057. Convention date, June 29, 1931. [Class 81 (ii).] A rinsing cystoscope has a removable interior tube containing the optical parts provided with an exterior wall dividing the space between the cystoscope shank and the interior tube into two separate ducts. The shank 1, containing an incandescent lamp 2 and having apertures 3, 4, is inserted in a sleeve 5 having supply and discharge tubes 7, 6 for rinsing liquid. A tube 10 containing the optical parts is inserted in the sleeve 5 and shank 1, the ray entrance aperture being positioned behind the aperture 4. The tube has diametrically opposite ribs 15 which divide the space between the shank 1 and the tube 10 into two separate ducts, communicating one with the supply tube 7, the other with the discharge tube 6, and with the exit and entrance apertures 4, 3 respectively. A support 12 for the tube 10 carries an eye rest 14 and an ear engaging a groove in the sleeve 5. The sleeve is provided with hooks which grip pins 17 on said support. The invention is applicable to ureteral cystoscopes, ureteral catheters being mounted in the ordinary manner.
Patent GB-188354-A (GB)
Title: Improvements in and relating to the manufacture and treatment of bitumen
IPC: C10C3/02
Filed: 1921-07-04
Abstract: Bitumen is prepared by distilling crude oils in presence of a little calcium carbonate to a temperature not exceeding 274 DEG  C., and heating the residue to 250 DEG  C. with sulphur.  Or a mixture of crude oil, sulphur, and carbonate may be distilled up to 250 DEG  C. Natural bitumen may be hardened by heating to 250 DEG  C. with sulphur.  In an example 0.2-0.5 parts of calcium carbonate and 8.0 parts of sulphur are used with 100 parts of the residue obtained by distilling Roumanian oil, free from paraffin, to 274 DEG  C. Specification 3026/92, [Class 22, Cements &c.] is referred to.
Patent GB-208490-A (GB)
Title: Improvements in and relating to tent attachments for motor vehicles
IPC: B60P3/34
Filed: 1923-07-13
Abstract: 208,490. Baton, E. R. July 13, 1923. Vehicles convertible into tents. - Motor vehicles are provided with a boot having berths supported therein, which, when the boot is opened, can be swung out into operative position and covered by a tent top. The driving seat and boot are also readily removable and replaced by an ordinary touring or other body. The boot top 6, Fig. 3, is hinged at the front end and when opened is kept in position by longitudinally-extending side members 14 hinged to the boot top, and the bed frames 20 are adapted to be swung out into operative position as shown and supported by guys 30 with turn-buckles 31, braces 27, 32, and adjustable ground supports 34. Corner stan. chions 26 are hinged to the bed frames and when erected serve as supports for the lower edges of the tent cover 55, which is supported at the upper part by a ridge pole 16 carried by an upright 19 and a hinged bracket 17, Fig. 2. In order to keep the boot as short as possible, the bed frames are hinged in two parts and the tail board 39 is adapted to be swung out into the position shown in Fig. 2, where it is held by side guys 40 with turn-buckles 41.
Patent GB-440111-A (GB)
Title: Improvements in or relating to thermostatically-operated valve control devices
IPC: F16K31/68
Filed: 1934-06-20
Abstract: 440,111. Thermostats. WALKER, C. BELL-, 38, South Bar, Banbury, Oxfordshire, and SMITH & SONS (MOTOR ACCESSORIES), Ltd., S., Cricklewood Works, Cricklewood, London. June 20, 1934, No. 18267. [Class 64 (ii)] [See also Group XXIX] In a thermally-operated valve device for gas cookers, room thermostats, &c., the setting of which is adjustable by the operating member of an auxiliary stop valve, the heat-responsive member may consist of a bi-metallic loop or helix, or an annular bellows chamber containing toluene. Fig. 2 shows a bi-metallic loop 30 anchored to a casing 21 by projecting tongues 32, 34, two of which engage pins 33. In the case of a helix, the ends of the helix are located in cross slots in two plugs secured respectively to the casing 21 and the valve control rod 28. For remote control, the annular bellows chamber may be connected by a capillary tube 66, Fig. 5, with a domed container 64 secured to a wall bracket 65. The domed container, Fig. 6, has a corrugated wall 67 so that its capacity is variable by a knob 69. According to the Provisional Specification, a bi-metallic spiral or helix may compensate for the expansion of the annular bellows due to local temperature variations in the case of remote control.
Patent GB-1421278-A (GB)
Title: Process for the production of primary amines
IPC: C07C/
Filed: 1973-04-16
Abstract: 1421278 Primary aliphatic amines RUHRCHEMIE AG 16 April 1973 [21 April 1972] 18281/73 Heading C2C Primary aliphatic amines having 2-19 carbon atoms per molecule are obtained by reacting an aldehyde or ketone having the same number of carbon atoms with ammonia and hydrogen in the presence of a fixed bed of a hydrogenationdehydrogenation catalyst containing active metals at a temperature between the critical temperature of ammonia (132À4‹ C.) and 160‹ C., and a pressure between 80 and 125 atmospheres gauge. A supported catalyst containing nickel, cobalt or nickel/chromium, optionally with promoters, may be used. The mole ratio of ammonia to aldehyde or ketone is preferably between 1 : 1 and 16 : 1. In the examples a supported catalyst containing Co, Mn and Mg was used; the carbonyl compounds were isobutyraldehyde, isononylaldehyde (prepared by the hydroformylation of diisobutene), pentadecylaldehyde (prepared by the hydioformylalation of tetradecane) and acetone. In comparative examples at temperatures below 132‹ C. (C 8 H 17 )CH=N(C 9 H 19 ) is obtained as the main product from isononaldehyde, and from pentadecylaldehyde.
Patent GB-934172-A (GB)
Title: Improvements relating to disc brakes
IPC: F16D65/56
Filed: 1958-06-07
Abstract: 934,172. Disc brakes. GIRLING Ltd. Sept. 7, 1959 [June 7, 1958], No. 18290/58. Class 103 (1). In a disc brake of the kind in which a stationary caliper straddles a portion of the periphery of a rotatable disc and friction pads located in the caliper are adapted to be urged into engagement with opposite faces of the disc by hydraulic actuating means carried by the caliper, the torque on a friction pad when the brake is applied is taken solely by means located at or adjacent the forward end of a backing plate for the friction pad. Fig. 1 shows pads 13 of friction material bonded to rigid backing plates 14 which are urged towards the disc by opposed hydraulic piston and cylinder mechanisms 15, 16. The torque on the friction pads is taken by pins 17 screwed through lugs 18 on the limbs of the caliper 10 and located at the forward ends of the backing plates 14. When the brake is applied the friction pads trail from the pins in a manner similar to a trailing shoe in a shoe-drum brake and this is stated to prevent brake squeal. Removal of pins 17 enables the pads and backing plates to be removed in a substantially circumferential direction. A further embodiment is shown in Fig. 6 wherein spaced parallel pins 26 detachably mounted in the caliper pass through clearance holes 27 in the backing plates 25 so that in whatever direction the disc is rotating the torque will be taken wholly by the pins at their forward ends. Removal of the pins 26 enables the pads and backing plates to be removed through an opening in the radially outer side of the caliper. Inclined bars 31 may be provided on the inner faces of the end parts of the caliper to act as scrapers to keep the surface of the disc free from mud in bad weather.
Patent GB-1077087-A (GB)
Title: Novel dibenzothiophene derivatives,processes for their preparation,and polymers formed therefrom
IPC: C08F24/00
Filed: 1965-04-30
Abstract: 4-Alkenyl or 4-substituted alkenyl derivatives of dibenzothiophene of the general formula <FORM:1077087/C3/1> in which R, R1 and R2, which may be the same or different, represent a hydrogen atom or an alkyl, aryl, alkaryl or aralkyl group and n is an integer from 0 to 21, may be polymerized to give homopolymers or co-polymers with olefines, e.g. pent-1-ene, ethylene and propylene.  The polymerization is preferably carried out under anhydrous, non-oxidizing conditions in a liquid medium and in the presence of a catalyst. Preferred catalysts are free radical catalysts, Lewis acids, Friedel-Crafts catalysts or a Ziegler-Natta catalyst.  Examples are given of the formation of homopolymers from 4-vinyl-dibenzothiophene and 4-(5-hexenyl)-dibenzothiophene.ALSO:The invention comprises 4-substituted derivatives of dibenzothiophene of the general formula <FORM:1077087/C2/1> in which R, R1 and R2, which may be the same or different, represent a hydrogen atom or an alkyl, aryl, alkaryl, or aralkyl group and n is an integer from 0 to 21.  The new compounds (other than those in which n is 2) are prepared by reacting a 4-alkali metal-substituted dibenzothiophene with a monohaloalkene of the general formula <FORM:1077087/C2/2> in which A represents a halogen atom.  The vinyl derivative is preferably prepared by reacting acetaldehyde with the alkali metal derivative hydrolysing the product to give 4-(b  - hydroxyethyl) - dibenzthiophene and dehydrating this to give the required compound. For the preparation of the butenyl derivative (n = 2 and R, R1 and R2 are H) a 4-alkali metal dibenzothiophene is converted to a 4 - (monohalobutyl) - dibenzothiophene which is reacted with an amine, the amine formed is oxidized to the amine oxide, e.g. by treatment with hydrogen peroxide, and the oxide is pyrolysed.  Other butenyl derivatives (n = 2, and at least one of R, R1 and R2 is other than H) are preferably prepared by reacting the 4 - (monohalobutyl) - dibenzothiophene which is dehydrohalogenated, e.g. by treating with potassium tertiary butoxide, trimethyl- and triethylamine, or sodium or potassium acetate, cyanide or hydroxide.  Examples are given of the preparation of (a) 4-vinyl dibenzothiophene, and (b) 4-(5-hexenyl)-dibenzothiophene.  The 4-alkali metal substituted dibenzothiophene compounds used as starting materials may be prepared by reacting dibenzothiophene with an alkali metal, or a functional derivative thereof, in a solvent under anhydrous non-oxidizing conditions.  Suitable alkali metal derivatives are, for example, sodium hydride, potassium hydride, lithium hydride, ethyl sodium, ethyl potassium and n-butyl lithium.
Patent GB-126341-A (GB)
Title: Improvements in and relating to Machines for Rifling Gun Barrels and other Tubes.
Inventor: TAYLOR ALFRED
IPC: B23D5/02
Filed: 1916-12-27
Abstract: 126,341. Taylor, A. Dec. 27, 1916. Rifling; riflings-bars.- Machines of the type having a rotary bar carried by a sliding carriage provided with means for protruding the cutters during the working stroke and withdrawing them during the return stroke, instead of having a continuous path or guideway to control the position of the cutters, a tappet is provided at each end of the travel for this purpose. The position of the tappets is adjustable to suit the length of the work. As the carriage 22, Fig. 1, starts on its working stroke, a slope 26 on the tappet 8, Figs. 5 and 7, by means of a depending pin and roller 24, withdraws a spring-pressed locking-pin 20 from the actuating lever, and allows the pin 13, Figs. 5 and 6, to ride up the hinged nosepiece 12 on to the top of the tappet and move the cutters into the working position. As the pin 24 rides down the slope 27 it allows the pin 20 to enter the lower hole 29 to lock the lever 14 and cutters in the working position. When the carriage 22 has completed its working stroke, a slope on the tappet 9 withdraws the locking-pin 20 and the pin 13 slides down the slop 17, allowing the lever to withdraw the cutters. A second slope then allows the pin 20 to enter the upper hole 28 in the lever 14 and lock it and the cutters in the withdrawn position during the return stroke. As the carriage reaches the end of this stroke, the pin 13 lifts the piece 12 out of the way. The cutter-head 36, Fig. 8. is separate from the bar 16 and is secured to it bv a universal joint at 34 so that it has some freedom of movement, and the guide-rings 38, 38<a> are free to rotate on both the head and bar. The rings 38<a> are recessed to receive segments having keys to take into the rifled grooves 42 in the bar.
Patent GB-381206-A (GB)
Title: Improvements relating to radio receiving apparatus
IPC: H01L29/00
Filed: 1931-06-26
Abstract: 381,206. Static contact rectifiers. TOMLINSON, A. V., 65, Victoria Street, London.-(Union Switch & Signal Co. ; Swissvale, Pennsylvania, U.S.A.) June 26, 1931, No. 18581. [Class 37.] A metal rectifier for wireless reception comprises a metal disc 1 (e.g. copper), having a layer 2 of a compound of the metal e.g. (cuprous oxide), the central portion being covered with graphite 3 engaged by a conical contact member 4. The working surface 2 has an area of the order of.hundredths or thousandths of a square inch, the contact area extending only over a portion of the surface 2. Specification 381,555, [Group XL], is referred to.
Patent GB-851567-A (GB)
Title: Solvent extraction process for separating hydrocarbons
IPC: C10G21/06
Filed: 1958-06-10
Abstract: In the separation of aromatic from nonaromatic hydrocarbons or of naphthenic from non-cyclic hydrocarbons by solvent extraction, 2,5-dihydroxymethyltetrahydrofuran with or without 0,5-10% by weight of water is used as the solvent, the former hydrocarbon in each case being preferentially dissolved.  The solvent may be used for separating specific compounds from each other, e.g. toluene from methylcyclohexane, or for preparing aromatic extracts, e.g. from gasolines.  Countercurrent types of extraction may be used or several extractions may be made, each successive extract being further treated with solvent.  The extract forms the heavier phase with the solvent and may be recovered by distillation.ALSO:In the separation of aromatic from non-aromatic hydrocarbons or of naphthenic from non-cyclic hydrocarbons by solvent extraction, 2,5-dihydroxymethyl-tetrahydrofuran with or without 0.5-10% by weight of water is used as the solvent, the former hydrocarbon in each case being preferentially dissolved.  Aromatic hydrocarbons may be extracted from gasolines or kerosenes.  Counter-current extraction may be employed or several extractions made, each successive extract being further treated with solvent.  The extract may be recovered from the solvent by distillation.
Patent GB-128679-A (GB)
Title: Improvements in and relating to the Cam-shafts of Internal combustion Engines.
Inventor: HAGENS HUBERT
IPC: F01L1/42
Filed: 1917-12-14
Abstract: 128,679. Hagens, H. Dec. 14, 1917. Addition to 128,675. Valve-gear.-The cam-shaft driving mechanism described in the parent Specification is modified by mounting the gear-wheel B either loosely upon the crank-shaft 4 or so that it may slide thereon. In the arrangement shown in Fig. 2, the wheel B is loosely mounted upon the crank-shaft, from which it is driven through spur.wheels 6, 5, 2. Radial shafts x, which are rotated at one-half the speed of the crank-shaft, carry bevel-wheels C<4>, D<4> which gear with teeth on one of the two faces of the wheel B. If the wheel B is keyed to the crank-shaft so that it may slide thereon, the spur gearing is dispensed with.
Patent GB-1062161-A (GB)
Title: Adjustable bearing member
IPC: E04G11/28
Filed: 1965-05-03
Abstract: 1,062,161. Wedges. C. I. WILLIAMS. May 3, 1965 [May 4, 1964], No. 18589/65. Heading F2K. [Also in Division E1]  An adjustable wedge block for use in positioning casting forms for pouring concrete comprises nested upper and lower U-shaped members 10, 11, the sloping edges 12 of the former engaging complementary bearing surfaces 13 of the latter, the members 10, 11.being adjusted longitudinally by a loosely fitting bolt and nut 24, 26 permitting tilting of the bolt. The lower surface of the member 11 has a transverse groove 16 for the reception of a securing bolt 18 embedded in a poured section of concrete, Fig. 3 (not shown).
Patent GB-440421-A (GB)
Title: Improvements in or relating to the manufacture of security documents such as bank-notes or paper therefor
IPC: D21H21/42
Filed: 1934-06-23
Abstract: Threads or filaments of artificial silk &c., e.g. of viscose rayon, cellulose acetate or nitrate, or benzyl cellulose, coated or impregnated with a non-corrodible metal, e.g. gold or silver, are used in bank-notes &c.  The threads &c. may be metallized by sputtering, spraying in a hot blast &c.  Specification 237,828, [Class 96], is referred to.ALSO:Threads or filaments of artificial silk &c., e.g. of viscose rayon, cellulose acetate or nitrate, or benzyl cellulose, coated or impregnated with a non-corrodible metal, e.g. gold or silver by spraying in a hot blast, are used in bank notes &c.  Specification 237,828, [Class 96], is referred to.
Patent GB-1079492-A (GB)
Title: Semi-conductor switching device
Inventor: MORDEN BRIAN RONALD
IPC: H01L29/10
Filed: 1964-05-06
Abstract: 1,079,492. PNPN switches. WESTING- HOUSE BRAKE & SIGNAL CO. Ltd. April 22, 1965 [May 6, 1964], No. 18752/64. Heading H1K. In a high-speed controlled PNPN switching element the concentration of minority carrier lifetime reducing impurities is greater in one of the inner zones adjacent its junction with an adjacent zone than it is in regions of the zone remote from the junction. Such an element may be formed by diffusing acceptor impurity into the entire surface of an N-type silicon wafer to form a PN junction, depositing gold over the surface and diffusing it in to beyond the junction by heating to 400-1300‹ C., etching off excess gold, subdividing into PNP slices, alloying donor material to an end zone of each slice to give a PNPN zone configuration and then attaching electrodes to the outermost zones and the inner P zone. Copper may replace gold as the lifetime reducing impurity and germanium be used in place of silicon. The areas into which the gold is diffused may be limited by oxide masking formed in conventional manner.
Patent GB-885057-A (GB)
Title: Continuous running machines for producing box or other blanks
Inventor: MOSER HENRY WILLIAM
IPC: B26D1/24
Filed: 1960-05-27
Abstract: 885,057. Cutting machines. LANGSTON CO., SAMUEL, M. May 27, 1960, No. 18756/60. Class 31 (1). [Also in Group XXIV] In a continuously-running machine for producing box or other blanks comprising a double facer 10, an indexable slitter-scorer 13 and an adjustable rotary cut-off 17, these devices are driven from a common line shaft 19 in turn driven by a variable-speed motor 18, and the shaft 69 of the double-facer is driven from the line shaft through a two-speed transmission 41, Fig. 3, which comprises a hollow shaft 47 operatively connected to the shaft 69 and driven from a shaft 43 coupled to the line shaft either through a fluid-operated friction clutch 54 or, at a preselected lower speed, through a fluidoperated friction clutch 85 and gears 74, 75, 83 and 84, the gears 74, 84 being mounted on the shafts 47, 43 respectively and the gears 75, 83 being mounted on a jack shaft 76 and a hollow shaft 79 respectively. The operation of the clutches is controlled by means of an electric circuit, Fig. 6 (not shown). In operation, the double-facer is driven at the normal operating speed and the web 22 is operated by the head 14 of the slitter-scorer which divides the web into two parts 22a, 22b which are cut-off by the two sets of shear blades 6, 7. When it is desired to use a different slitter-scorer 15 or 16 and to drive the shear blades 6, 7 at a different speed, the web is severed by an independently-driven one-revolution shear 11 and simultaneously the transmission 41 reduces the speed of the double-facer to the preselected lower speed. When the severed web clears the slitter-scorer this will be indexed through 120 degrees in the predetermined direction by means of a motor 8 to bring a newly-set head to the working position. At the same time, the blades 6, 7 will be adjusted to the new blank length. The transmission 41 will now act to restore the double-facer to the normal operating speed. U.S.A. Specifications 2,309,728, 2,764,217 and 2,865,264 are referred to.
Patent GB-455807-A (GB)
Title: Improvements relating to telephone instrument circuits
IPC: H04M1/738
Filed: 1935-07-01
Abstract: 455,807. Circuits for differential microphones. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, Westminster, SUTTON, G. W., 25, Cranleigh Road, Merton Park, London, and GRINSTED, W. H., Under the Plane, London Lane, Bromley, Kent. July 1, 1935, No. 18758. [Class 40 (iv)] In an anti - side - tone substation circuit employing a three-winding transformer, a differential microphone is connected in such a way that the feeding directcurrent must always be the same in both halves. In the arrangement shown, the two halves of the microphone M and two condensers CA, CB constitute a bridge fed across one diagonal by current from a central battery through a choke CH and having one winding I of the transformer TR connected across the other diagonal. The second winding II of the transformer is connected in series with the receiver R across the line and the third winding III in series with impedance across the receiver. In a local-battery circuit, the feed battery is connected directly across condensers CA, CB, and in a modification these condensers are omitted and the central microphone electrode is connected through winding I and a single condenser to the mid-point of the battery. The condensers CA, CB may be designed to favour high frequencies and thus suppress low-frequency room noise. Specification 447,698 is referred to.
Patent GB-1331522-A (GB)
Title: Piperazinyl-quinazolone-4-derivatives process for producing them and medicines comprising them
IPC: C07D403/06
Filed: 1971-06-03
Abstract: 1331522 Piperazinyl-quinazolones BYK GULDEN LOMBERG CHEMISCHE FABRIK GmbH 3 June 1971 [5 June 1970] 18803/71 Heading C2C Novel compounds I and salts thereof in which R<SP>1</SP> is H, halo, 1-3 alkyl groups of 1-6C or 1-3 alkoxy groups of 1-6C; R<SP>2</SP> is H, 1-6C alkyl, phenyl-1-6C alkyl, or 3-6C cycloalkyl; A is 1-6C alkylene; Y is H or 1-4C alkyl and Z is H or one or more 1-4C alkyl, alkoxy, or alkylthio groups, CF 3 , F, Cl or Br atoms are prepared by (a) reaction of a compound II with a compound III followed by intramolecular condensation of the compound IV produced (b) reaction of a compound III with a compound V (c) reaction of a compound VI with a compound VII, VIII or IX followed by alkylation if R<SP>2</SP> is other than H. Compounds II may be prepared by reaction of compounds X with Hal-CO-A-Hal in which Hal is halogen and Hal<SP>1</SP> is Cl or Br or with (Hal-A-CO) 2 O. 6-Nitroveratrumic acid N-methylamide is prepared by reaction of the acid chloride with CH 3 NH 2 . 3,4-Dimethoxy-6-amino-benzoic acid N-methylamide is prepared by catalytic hydrogenation of the previous intermediate. Pharmaceutical compositions comprise a compound I together with a suitable excipient and are administered orally or parenterally as hypotensives, antihistamines and analgesics.