baber/WOPTO huggingface dataset:
Patent GB-252027-A (GB)
Title: Improvements in high frequency electric signalling systems
IPC: H03C1/62
Filed: 1926-05-11
Abstract: 252,027. British Thomson-Houston Co., Ltd., (Assignees of Byrnes, I. F.). May 11, 1925, [Convention date]. Thermionic modulating systems and apparatus. -Relates to wireless telephone transmitting systems in which radiation is inhibited except when speech is taking place. According to the present invention this is effected by inserting in the plate circuit of an amplifier. as distinct from the oscillator itself, an impedance which normally inhibits radiation but is reduced by the action of the speech currents to a value which permits radiation to take place. Thus in the system comprising the oscillator 2, amplifier 3, power amplifier 4, and modulator 5, the plate circuit of the amplifier 3 is normally choked by the control valve 6 which is included in the circuit and is normally blocked by a bias applied to its grid by the battery 8. When the microphone 9 is spoken into, however, the mean potential of the grid of the valve 6 is rendered more positive and radiation takes place. A choke prevents the oscillations in the control valve from modulating the amplifier. The transmitting apparatus shown may be combined with receiving apparatus as described in Specification 243,683.
Patent GB-698249-A (GB)
Title: Process for the biological production of antibiotics
Filed: 1947-12-02
Abstract: Penicillin is produced by cultivating a penicillin-producing micro-organism in a nutrient medium to which is added a preparation of the gland-carrying parts of the animal digestive canal, e.g. in a proportion of about 1 : 50.  The said material may first be defatted, desiccated and fractionated, and advantageously also treated with agents for its demolition or decomposition, e.g. inorganic or organic acids or bases, animal, vegetable or microbial agents, or proteolytic enzymes, especially with pepsin at pH >7 or trypsin at pH <7 or both successively. The resulting product may be sterilized before or after admixture with the whole or part of the remainder of the nutrient medium. In an example, the nutrient medium is prepared by treating small intestine with pepsin at pH 2 and then with trypsin at pH 7.5, sterilizing the filtered product in an autoclave and adding it to the rest of the nutrient medium, which may be a Czapek-Dox solution, optionally modified, supplemented by 1-5 per cent of carbohydrate, e.g. lactose or glucose.  Specifications 613,488 and 691,461 are referred to.
Patent GB-104299-A (GB)
Title: A New or Improved Lathe.
Inventor: MELLWIG PAUL
IPC: B23B3/18
Filed: 1916-08-29
Abstract: 104,299. Mellwig, P. Aug. 29, 1916. Lathes.-Screw-cutting lathes, with hollow spindles provided with stock-feeding mechanism, are provided with an additional saddle carrying a turret fed by means independent of the lead-screw. The turret slide 15 carries a rack 16 meshing with a pinion on a pilot-wheel shaft, and a screw 27 which may be engaged with a threaded lug 29. A selector stop-disk 24 is provided. The turret may carry a centre for use as a tailstock. Reference has been directed by the Comptroller to Specifications 14703/86 25589/99, 350/01, 8421/01, 1448/02, and 16006/04.
Patent GB-496386-A (GB)
Title: Improvements in and relating to posting and account sheets for use in book-keeping
IPC: B42D12/02
Filed: 1937-04-29
Abstract: 496,386. Stencils ; printing -plates. CLAYTON, C. E. EVERY-. (Anker-Werke Akt.-Ges.) April 29, 1937, No. 12284. [Class 100 (ii)] A sheet a is provided with book-keeping entries in the form of transferrable printed or written matter d, and associated code-perforations b, the entries being separated by scorelines y, and the parts bearing the matter d being different in thickness from the parts containing the code-perforations. Preferably, the written &c. entries are made in recessed parts of the sheets, or are stuck thereon. The sheet may consist of paper, cardboard, metal, or artificial resin, and the entries may be impressed or stencilled, or may be in mirrorscript form. The sheet can be employed in a known machine for selecting account-cards bearing the. numbers represented by the codeperforations. Alternatively, the separate cards formed by dividing the sheet along the scorelines can be employed for producing a sheet having the written &c. entries arranged in line with the associated code-perforations and separated therefrom by a score-line.
Patent GB-293517-A (GB)
Title: Improvements in or relating to projectile fuzes
IPC: F42C15/26
Filed: 1927-05-07
Abstract: 293,517. Vickers, Ltd., and Mellstrom, C. G. May 7, 1927. Projectile fuzes.-Relates to percussion and graze fuzes for projectiles of the kind having a spring - controlled firing member normally held by a detent which is moved, to release the firing member, by reason of its rotational inertia, when the projectile impinges on a target. According to the invention, the detent or retaining member normally engages directly with the spring-controlled firing member. In the construction shown, the holder of a percussion cap B<2> is a slidable plunder B, normally held against the action of a spring B<1> by a detent D pivoted at D<1>. This detent, as shown in Fig. 3, is formed a curved arm, so weighted and arranged that during the flight of the shell it is liept by centrifugal force against a stop D<x>, in which position it engages under a shoulder B<3> of the member B. A centrifugal safety-catch E, itself locked by an inertia bolt E<2>, locks the detent D until the shell is discharged from a gun. The firing needle may be fixed to the body of the fuze, but in the construction shown it is mounted on a member C<1> pivoted at C<x> in a slot in a block C. The part C<1> is normally locked in the position shown in Fig. 5, with the firing-needle C<2> shielded and out of alignment with the percussion cap B<2>, by centrifugal bolts C<3>. The block C carries spring plungers C<4>, which prevent forward creeping of the block during the flight of the shell. The action is as follows. When the shell is discharged, the bolt E<2> sets back, releasing the catch E which moves outwards under centrifugal force, unlocking the detent D. On cessation of the forward acceleration, the bolt E<2> is moved forward again by a spring, preventing the return of the part E. The spin of the projectile also effects the release of the member C<1> from the bolts C', and. causes the part C' to swing so as to bring the needle C<2> into line with the peroussion cap. If the shell grazes an obstacle, so that the spin is reduced, the detent D turns about its pivot D<1>, by reason of its rotational inertia, and frees the plunger B, which is thereupon driven towards the needle C<2> by its spring, causing ignition. Impact of the shell with an obstacle, as distinct from merely grazing, causes the block C to move forward by momentum, forcing the firing needle against the percussion cap. ,
Patent GB-551956-A (GB)
Title: Improvements in or relating to gauging devices
IPC: G01B3/44
Filed: 1942-09-02
Abstract: 551,956. Linear-dimension gauges. SHEFFIELD CORPORATION. Sept. 24, 1941, No. 12379. Convention date, Nov. 29, 1940. [Class 106 (ii) ] A device for gauging several dimensions of a workpiece simultaneously comprises a series of work contacting elements each 'arranged to operate a movable member from a normal position between two switch contacts to engage one or other and operate a signalling circuit to show which dimension departs from standard such circuits being connected to a common indicating device which shows whether or not all dimensions conform to standard. A support 10 has an upstanding portion 11 provided with guides 12 for holders 13 which may be adjusted in the guides and clamped by screws 14 extending through slots 15. Each holder supports a gauge head including gauging mechanism and a pair of work-contacting fingers. The gauge heads 18 to 25 are arranged in staggered relation to one another at opposite sides of a work receiving space 27, the workpiece shown in dotted, lines 31 being placed with its lower end in an arbour 30 on a support slide- 28 which engages an adjustable stop 32. The gauge head 18 has a feeler 33 moving horizontally. The work is contacted by a finger 34 on a block 35 having a laterally projecting lug 36 which engages the feeler 33. The block 35 is supported by two parallel spring blades 37 from a part 38 of a head-positioning arm 39 secured to the housing of the head 18. The arm 39 extends across the work position and has a work-contacting finger 40 opposite the finger 34. The arm. 39 is carried by parallel spring blades 42 from a bar 43 fixed to the holder 13.' A lug 44 on the arm 39 engages between two lugs. 45 on the bar 43 a spring 46. in one lug 45 engaging one face of the lug 44 the other face of which is engaged by a stud 48 in the other lug 45. The contact 40 is then yieldingly pressed towards the work. The gauging heads 19 to 25 are similarly arranged excepting that the arms 39 of heads 22 to 25 are reversely positioned. When the feeler 33 is positioned correctly according to a standard dimension, an arm moved thereby' takes up a position between two pairs of closed spring contacts. When the arm is moved a slight distance to right or left of this position owing to movement of the feeler 33, one or the other of these pairs of contacts is broken. The contacts are in electric circuit with coloured lamps, a green and a red lamp being arranged in a casing behind an opalescent viewing screen which appears amber when both red and green lamps are lit and green or red when one lamp is out. The lamps for the various heads are preferably arranged in the line and are connected up in circuit with a master red lamp 106 and the arrangement is such that if all parts conform to standard size an amber light shows for each head and the master lamp is out. If any portion. is either over or under size, the master lamp shows red and the head which is not of standard dimension will show green or red as the dimension is over or under size. Specification 543,806 is referred to.
Patent GB-1436593-A (GB)
Title: N-substituted acetamides processes for their preparation and pharmaceutical compositions containing them apparatus for processing photograp
IPC: A61K31/445
Filed: 1973-03-15
Abstract: 1436593 Substituted acetamides SCIENCE UNION ET CIE SOC FRANCAISE DE REMEDICALE 15 March 1974 [15 March 1973] 12430/73 Heading C2C Novel substituted acetamides of the Formula I in which R 1  is H or C 1 -C 6  alkyl; R 2  and R 3  each are C 1 -C 6  alkyl, cycloalkyl or aryl; R 6  is H or C 1 -C 6  alkyl; R 4  is H, C 1 -C 6  alkyl, C 2 -C 10  alkenyl or benzyl; R 5  is C 1 -C 6  alkyl, C 2 -C 10  alkenyl, C 2 -C 6  alkynyl or aryl-C 1 -C 4  alkyl; or R 4  and R 5  together with the nitrogen atom to which they are attached form a 5 to 8 membered saturated heterocyclic ring which is optionally substituted and may contain a further hetereo atom, and R<SP>1</SP> is H or acyl, and the acid addition salts thereof are prepared by reaction carboxylic acids of the formula or reactive functional derivatives thereof with amines of the formula compounds of the Formula I above in which R 4  is H may also be obtained by the hydrogenolysis or acid hydrolysis of the corresponding compounds in which R 4  is benzyl, and those in which R<SP>1</SP> is acyl by acylating the corresponding compounds in which R<SP>1</SP> is H. (2,2<SP>1</SP>,6,6<SP>1</SP> - Tetramethyldiphenyl)acetyl chloride is prepared by reacting thionyl chloride with the acid, resulting from the hydrolysis of the corresponding nitrile, which is made by reacting silver cyanide with (2,21,6,61-tetramethyldiphenyl)chloromethane. Similarly the following are prepared: (4,41 - difluorodiphenyl)acetyl chloride, (4,4<SP>1</SP> - difluorodiphenyl)acetic acid, and (4,4<SP>1</SP>-difluorodiphenyl)acetonitrile. Dicyclopropylacetyl chloride is prepared by reacting thionyl chloride with dicyclopropylacetic acid, obtained by oxidizing dicyclopropylacetaldehyde. (2,2<SP>1</SP>,3-Trimethoxy-5<SP>1</SP>-methyldiphenyl)acetic acid and (2-methoxy-2<SP>1</SP>-methylthio- 5<SP>1</SP>-methyldiphenyl)acetic acid are also obtained by oxidating the corresponding acetaldehydes. Pharmaceutical compositions, suitable for oral, parenteral, sublingual or rectal administration, contain the above compounds or non- toxic acid addition salts thereof in admixture or conjunction with pharmaceutical carriers. The compounds anti-arhythmic, cardio-depressive, vasodilatory, anti-hypertensive and anti-aggregating properties.
Patent GB-370209-A (GB)
Title: Improvements in illuminated signs
IPC: G09F19/00
Filed: 1931-04-28
Abstract: 370,209. Changing signs. GEES, H., 10, Kaiserdamn, Berlin. April 28, 1931, No. 12530. [Class 3 (i).] A casing a of tapered form is partitioned to form compartments in which are mounted signs c of identical configuration but of gradually diminishing size, the smallest being at the top. The stencils &c. forming the signs are illuminated in succession by lamps d at the rear, thus giving the effect of movement towards or away from the observer. The partitions b may be straight or curved.
Patent GB-877306-A (GB)
Title: Halogenated derivatives of tetrahydro-1-naphthyl cyclic amidines
IPC: C07D233/20
Filed: 1959-04-14
Abstract: The invention comprises compounds of the formula <FORM:0877306/IV (b)/1> wherein X represents at least one halogen atom, R is a hydrogen atom or a C1-C5 alkyl or C2-C5 alkenyl radical, and n is 2 or 3, and acid addition salts thereof, and the preparation thereof by alcoholysing a halogenatedphenylacetonitrile to an alkyl halogenated-phenylacetate and adding an alkyl acrylate to produce a dialkyl alpha-(halogenated-phenyl)-glutarate and hydrolysing the glutarate to produce an alpha-(halogenated-phenyl)-glutaric acid and dehydrating the acid to produce an alpha-(halogenated-phenyl)-glutaric anhydride and cyclizing this to a halogenated-4-keto 1,2,3,4-tetrahydro-1-naphthoic acid and reducing this to a halogenated-1,2,3,4-tetrahydro-1-naphthoic acid and amidating this to a halogenated - 1,2,3,4 - tetrahydro - 1 - naphthoamide and dehydrating the amide to produce a halogenated 1,2,3,4-tetrahydro-1-naphthonitrile and condensing the nitrile with an unsubstituted or mono-N-substituted ethylene diamine or 1,3-diaminopropane; and, if desired, converting the products into their acid addition salts.  The products have depressor, blood pressure lowering, adrenergic blocking or cardiac rate decreasing properties depending upon their molecular structures. o-Chlorophenyl-acetonitrile and o-bromophenyl-acetonitrile are prepared by treating the corresponding o-halogenobenzyl halides with potassium cyanide.
Patent GB-349736-A (GB)
Title: Process and apparatus for the treatment of photographic films
IPC: G03D15/00
Filed: 1930-04-23
Abstract: <PICT:0349736/IV/1> To effect purification, removal of brittleness, or hardening, films whilst wound into a coil are exposed in a gastight container to an agent in the form of a gas or spray which is forced on to the film by a propeller arranged below the film.  In one form the film is wound on a spool 1 with its convolutions spaced apart by means of a thread wound with the film.  The spool is supported in a container 2 immediately over a propeller 7.  An opening in the lid 3 of the container is connected by a pipe of large cross section to an opening in the base of the container 2. The suction caused by rotation of the propeller 7 vaporizes treating liquid contained in the receptacles 11 and forces it under pressure on to the film, a current of vapour being maintained in the apparatus.  Alternatively, treating liquid may be circulated by the pump 12 to the nozzle 14 which sprinkles it on to the film.  Drops passing through the film are thrown back by the propeller 7 in the form of a fine spray under pressure.
Patent GB-1334303-A (GB)
Title: Multi-funktion logic gate circuits
IPC: H03K17/60
Filed: 1971-05-03
Abstract: 1334303 Transistor logic circuits RCA CORPORATION 3 May 1971 [6 Aug 1970] 12669/71 Heading H3T The logic function performed upon a plurality of inputs X 1  to X n  by a plurality of current switches 10 to n which have a first common load R F  connected to a first output of each and a second R 1  to a second output of each, is selectable by choice of valves for R F , R I . Each switch supplies to R F  or to R I  a unit of current determined by R which may be a constant current source. Thus the current in R F , R I  varies stepwise, and any particular step level may be selected to represent the transition from 0 to 1. Then if the first step is chosen, the output 24 from R I  is an OR function of all the inputs, and the output at 32 across R F  is a NAND, the values of R F  and R I  being selected to give this step at a suitable predetermined output level. Alternatively, if all steps together are chosen to produce a 1, and the values of R I , R F  selected accordingly, then output 24 gives an AND, and output 32 a NOR function. For steps in the intermediate range, majority logic is performed. In particular the logic functions at outputs 24, 32 depend only upon R F  and R I , and are independent of each other. In a modification (RG2, not shown) responding to odd numbers of inputs to give a 1, a further switch (40) receives one output (32) of the plurality of switches, and supplies two units of current (due to its emitter resistor of R/2) to the other output (28). These two units are not supplied if two or three of the current switches (10-14) conduct to the output 28, because of the other output (32) controlling the extra switch (40a on, 40b off). Consequently R I  passes three units only if all three switches (10-14) conduct or if one of them and the extra switch (40) conduct. The resistors R F , R I  may be transistor circuits.
Patent GB-778390-A (GB)
Title: Improved machine for treatment of plants
IPC: A01G5/06
Filed: 1954-05-01
Abstract: 778,390. Machines for treating plants. GOLD, R. L. April 28, 1955 [May 1, 1954], No. 12701/54. Class 49 A machine for freshening plants by causing the infiltration of water thereinto comprises an air-tight outer container, the pressure inside which may be controlled by means of a pump, together with a plurality of trays in which the plants to be treated are either partially or wholly immersed in water according to their particular requirements, the trays being superposed inside the outer container. The trays 21, 22 and 23 are of varying depths and apart from the lowest one, each is formed with an aperture which is fitted with a funnel 26, so that 'when the funnel is removed, the water in the tray drains to the bottom of the container and out through the pipe 13 via the perforated base 5 of the bottom tray, a valve 14 being provided for the purpose of opening or closing the pipe 13. The outer container 10 carries two brackets 31 in diametrically opposed positions near its upper edge, a lid 32 being hinged to one of them. Clamping bolts 37-40 mounted between the brackets and acting in conjunction with nuts 39 and 42 respectively, ensure the sealing engagement of the lid with the container when the lid is in the closed position. The lid supports a vacuum gauge 47, a vacuum release valve 49, and is provided with an opening 59 which is connected by means of a pipe 45 to the suction side of the pump 17 which is housed underneath the container. Specifications 754,821 and 754,822 are referred to.
Patent GB-627357-A (GB)
Title: Improvements relating to slicing machines
IPC: B26D7/02
Filed: 1947-05-12
Abstract: 627,357. Slicing-machine. BERKEL & PARNALL'S SLICING MACHINE MANUFACTURING CO., Ltd. May 12, 1947, No. 12725. Convention date, Nov. 19, 1941. [Class 28(ii)] In a slicing-machine in which the height of the substance-clamping arm 1 and its angular position is adjustable the adjustment is made by handles 13 and 15 acting through mechanisms wholly enclosed within the hollow casing 1 of the clamp arm or within the enlarged sliding support 3. The clamp 1 is rocked down into locking position on the substance by the operator depressing the handle 13 which pivots the clamp down about the shaft 2. When released the upward reaction of the substance on the clamp is resisted by the frictional grip of a spring pressed locking plate 8 on its stay rod 6. To raise the clamp arm the handle 13 is raised so that release rod 9 presses the locking plate 8 so that its aperture ceases to be inclined to the rod 6 and therefore frees its frictional grip thereon. The vertically adjustable support is prevented from slipping down on the upright 4 by a friction pad 20, Fig. 3, (not shown). The whole support 3 for the clamp 1 can be slid down on upright 4 by depressing handle 15 which first releases a friction clutch 18. Upward movement due to the reaction of the substance clamped is prevented by the grip of a one-way clutch plate 18. To raise the support 3 and along with it the whole clamp arm 1 the handle 15 is raised which frees the clutch. An auxiliary upright helps to guide the bodily sliding of the whole mechanism up or down on the upright 4.
Patent GB-310963-A (GB)
IPC: H05B31/00
Filed: 1929-04-24
Abstract: 310,963. Gautier, G., Le Bozec, L., and Dubois, R. May 5, 1928, [Convention date]. Arc-lamp electrodes.-In an arc lamp as described in Specification 128,006 in which the cathode consists of a hollow ring containing cooling-fluid and provided with a coil for rotating the arc, the coil E is arranged inside the hollow annular cathode a.
Patent GB-400113-A (GB)
Title: Improvements in or relating to windshield wipers
IPC: B60S1/36
Filed: 1933-05-02
Abstract: 400,113. Windscreen-cleaners. BRUMM, E., 11<bis>, Rue St-Gervais, Lyons, France. May 2, 1933, No. 12746. Convention date, May 4, 1932. [Class 138 (i).] The wiper arm of a windscreencleaner is in two parts with relative sliding movement, the parts being locked together by means of the spring which applies the wiper against the windscreen. In the construction shown, the wiper arm consists of two parts 8, 10, the part 10 being formed with notches 10a for engagement by a stirrup 13 pivoted to the part 8. The stirrup is held engaged in a notch by the spring 16 which acts to press the wiper 11 against the windscreen. The stirrup and notches may be replaced by a cam lever adapted to be wedged against a smooth rod. The wiper arm is pivoted to a web 1 connected by a swivel joint 5 to a stud 2, in which is fixed by a screw 6 a connecting rod 7 for driving a second windscreencleaner.
Patent GB-200632-A (GB)
Title: Improvements in and relating to door locks
IPC: E05B63/20
Filed: 1922-05-05
Abstract: 200,632. Brecknell, W. H. May 5, 1922. Latches, sliding.- The free end of a vertical leaf spring 3 carries a member 5 adapted to hold the spring controlled latch withdrawn until the door is closed when the bolt staple 2 lifts the free end of the spring 3 and the latch is released. Specifications 9853/92 and 107,850 are referred to.
Patent GB-1247866-A (GB)
Title: Process for the production of soft sugar
Inventor: STACHENKO STEPHEN
IPC: C13B50/00
Filed: 1968-03-15
Abstract: 1,247,866. Soft sugar. CANADA & DOMI-  NION SUGAR CO. Ltd. 14 March, 1969 [15 March, 1968], No. 12800/68. Heading A2B. [Also in Division C6] Soft sugar is prepared by spraying a curtain of white sugar particles with a sugarcontaining syrup. The coated particles are preferably uniform in size and colour. The syrup may comprise sucrose, invert sugar and mineral salts. As shown a falling curtain of white sugar particles from spreader 4 is sprayed with syrup (e.g. at 45 to 85C) under pressure from nozzles 5 and the coated particles are conveyed in rotating drum 11 towards a packing station. The white sugar is fed to the spreader 4 from bin 1 by variable feeder 2 and oscillator 3. The syrup is supplied to the nozzles 5 of sprayer 6 from tank 8 via strainer 9 and pressure pumps 7.