baber/WOPTO huggingface dataset:
Patent GB-821746-A (GB)
Title: Load handling vehicles
IPC: B66F9/065
Filed: 1957-05-31
Abstract: 821,746. Hydraulic control systems. CLARK EQUIPMENT CO. May 31, 1957 [June 8, 1956], No. 17333/57. Class 69 (2). [Also in Group XXX] Two hydraulic cylinders 47, 43 are interconnected by conduits 77, 78 so that as one piston moves in the other moves out and vice versa. Pressure fluid may however be supplied from a line 60 to either end of the piston 44A under the control of a slide valve 59, the piston 51A being held against motion. To move the piston 44A from right to left fluid is supplied through lines 62, 64 and 77 and returns through lines 78, 75, 73, 71 and 68. Movement of the valve 59 reverses the direction of flow. 63 and 69 are pressure relief valves which allow fluid to pass between the ends of the cylinder 47 if the piston 44A reaches the end of its stroke during the travel of the piston 51A, the valve 59 being closed. Pressure relief valve 72 and check valve 74 communicate with the fluid reservoir and compensate for the volumes of the piston-rods 44, 49. The system is applied to control the movement of the lifting carriage of a lift truck (see Group XXX).
Patent GB-573066-A (GB)
Title: Improvements in or relating to printing press inking mechanism
IPC: B41F31/00
Filed: 1943-10-26
Abstract: 573,066. Printing-machines. STEVENS, A. H. (Miller Printing Machinery Co.) Oct. 26, 1943, No. 17629. [Class 100 (ii)] In a reciprocating bed printing machine, means are provided for maintaining the ink supply to the outer forme-inking roller 21 notwithstanding changes in size of this roller due to wear &c. and without moving the roller further from the impression roller 12. In one form, Fig. 1, the ink is supplied to the roller 21 by a roller 30 contacting a roller 29 engaging the ink drum 17. The roller 30 is carried by an arm 32 adjustably clamped about a pivot 33 by a bolt 34 passing through a slot 35 in the arm. Upon reduction in size of the roller 21, the roller 30 is adjusted into contact with the roller 21 and the roller 29 is moved about the drum 17 into contact with the roller 30. In a further form, Fig. 4, the ink is applied to the roller 21 directly from the drum 17, which, with the fountain and intermediate transfer and distributing rollers, is carried by a frame 42 pivoted about a, shaft 43 and adjustable by a bolt 46 passing through a slot 45 in the frame.
Patent GB-473092-A (GB)
Title: An improved method of manufacturing pressure cooking utensils
IPC: A47J27/08
Filed: 1936-06-26
Abstract: 473,092. Seamed and welded joints. WALL'S, Ltd., and BAYLISS, J. June 26, 1936, No. 17747. [Class 83 (iv)] [Also in Group XVIII] A pressure cooking utensil is formed by securing together pressings 3a, 3b, flanges 3a<1> and 3b<1> on which are brought together, and welded along the line of join, the flange 3b<1> then being rolled over the flange 3a<1>. The edge of the flange 3b<1> is then welded to the pressing 3a. An elliptical aperture, bounded by a raised portion 3d, is closed by a lid comprising plates 4, 5 having a sealing washer 6 therebetween, and secured together by screws 7 and a safety valve 8. A nut 10 on a screwed part 11a of the unit carrying the warning whistle 11 bears on a clamping bar 9. Handles 16 are carried by sheet metal straps 15 welded to the container.
Patent GB-931175-A (GB)
Title: Improvements in or relating to fluid-controlling valves
Inventor: FLOYD TERENCE JOHN
IPC: F16K5/06
Filed: 1961-05-16
Abstract: 931,175. Valves. AUDCO Ltd. May 8, 1962 [May 16, 1961], No. 17747/61. Class 135. A spherical plug valve comprises a housing 10, having an inlet and outlet 11, 12, which receives a one-piece resilient sleeve 14. The sleeve 14 is formed with a spherical cavity which receives a spherical closure member prior to assembling the sleeve in the housing. The housing may be formed in two parts with the outlet part screwed into the other body parts thus clamping the sleeve. Alternatively, the housing may be split along a plane containing the axis of the flow path. The sleeve and body are preferably tapered. The sleeve is provided with a port to receive an actuating spindle 17.
Patent GB-462109-A (GB)
Title: Improvements in systems comprising piezo-electric crystals
IPC: H03H9/05
Filed: 1935-06-22
Abstract: 462,109. Piezo - electric crystals. GUERBILSKY, A. June 22, 1935, No. 17994. [Classes 40 (iii) and 40 (v)] A piezo-electric crystal is adapted to respond to a band of frequencies, but in order that the response may be uniform throughout the band certain resonances are damped by mechanical means. If the wedge-shaped crystal 1 is shunted by a tuned circuit, Fig. 2 (not shown), and is allowed to vibrate freely, it yields two limiting resonances a, b, Fig. 5, together with a number of marked intermediate resonances, Fig. 3 (not shown). The latter are diminished, and the response shown in Fig. 5 is obtained, if the crystal 1, Fig. 6, is attached to the annulus 6 with Canada balsam 9 or the like, either throughout or at certain points only of its periphery. Alternatively the substance applied may be one, such as a metal, in which the velocity of elastic waves is substantially the same as in the crystal. Vibrations other than those parallel to the thickness of the crystal are thus eliminated. Pressure may be applied by a clamping screw, Fig. 12 (not shown). Alternatively the crystal may be within the ring 6 as shown in Fig. 8. The intermediate resonances c, Fig. 5, can be eliminated and replaced by a smooth curve if the crystal be damped as at 10, Fig. 6, with paraffin or the like at suitable points on its surface. When two crystals are used between the same pair of plates a resonance curve of the form shown in Fig. 9 is obtained, but the peak d can be narrowed, Fig. 10 (not shown), by tuning the associated condenser. In order that the output may be zero when the crystal is not vibrating, the latter may form one arm of a balanced bridge, two inductances and a condenser forming the other arms while the input and output terminals form the diagonals. Specifications 361,307, 418,603, and 419,661 are referred to.
Patent GB-227139-A (GB)
Title: A new or improved apparatus for testing pottery and the like
IPC: G01N3/00
Filed: 1923-07-12
Abstract: 227,139. Podmore, W., and Podmore, A. J. July 12, 1923. Pottery.-For testing pottery and like articles, apparatus is provided whereby defects due to the different coefficients of expansion of a body and it glaze are shown, and also the resistance of such articles to chipping and breaking. The article, which is mounted at one end of an arm s pivoted on a rod d and carrying at its outer end a counterbalance weight w, is immersed alternately in a hot bath t and a cold bath p. For this purpose, two vessels a, a<2> fixed together at right-angles and pivoted on the rod d are arranged to be tilted automatically when a certain weight of water from a supply pipe b enters the horizontal vessel. Stops u, v regulate the swinging movement so that the article is conveved from one bath to the other for a definite number of times, the number of immersions in the hot bath t being counted by a mechanical counter 5. The vessels a, a<2> have outlets a<5>, a<6> from which water flows to a trough o and thence to the cold bath p. The test for chipping is shown in Fig. 6 and consists of a swinging pendulum 12 having a steel striking-block 14, the pendulum being pivoted to a stud 13 adjustably mounted on the frame. The upper end of the arm 12 engages the teeth of a curved graduated rack 15 hinged at 16. In operation, the pendulum is caused to take up a position on the graduated rack according to the blow required and the rack is lifted causing the pendulum to fall and to strike the edge of the plate &c. which is mounted in a carrier 11. The test for breaking is of a similar nature to that for chipping, the pendulum in this case being mounted so as to swing at right-angles to the frame and to strike the back of the article.
Patent GB-295115-A (GB)
Title: Improvements in or relating to methods of and apparatus for condensing zinc vapors
IPC: C22B19/18
Filed: 1927-07-08
Abstract: 295,115. Jackson, L. Mellersh-, (New Jersey Zinc Co.). July 8, 1927. Distilling zinc.-A condenser for zinc vapour comprises a number of long narrow channels so arranged that the condensed zinc flows in a direction opposite to the flow of gases and has means for controlling the temperature and pressure in the channels. The zinc vapour is supplied through the pipe 8 to a chamber 5 of graphite blocks, which is enclosed in walls 10, 11 of hardened carbon paste and sheet metal and has plugged openings 7, 9 for tapping the zinc and cleaning the pipe 8. The vapours are condensed in vertical channels 13 formed in a plurality of graphite blocks enclosed in carbon and metal walls 14, 15. The outer channels may be larger than the inner channels. The metal shell 16 encloses a laver of coal-dust 18, the depth of which can be varied to control the temperature. Exhaust gases are discharged through a hood 19 having an apertured plug 21, interchangeable plugs with apertures of different sizes being provided so that the pressure as indicated by gauges 28, 28<1> may be. controlled. Specification 298,921 is referred to.
Patent GB-1388137-A (GB)
Title: Drop writing apparatus
IPC: B41J2/175
Filed: 1972-04-19
Abstract: 1388137 Ink drop writers A B DICK CO 19 April 1972 [19 April 1971] 18198/72 Heading B6P An ink-drop-producing print head comprises a resonance cavity 26 having a narrow outlet orifice 28 at one end and opening into a chamber 40 in which a filter 39 is located, the ratio of the widths D 1 , D 2  of the cavity 26 and chamber 40 being not greater than 0À45 : 1. Piezoelectric elements 34, 35 cause periodic constrictions in the cavity 26 to influence the formation of droplets. The outlet orifice 28 may be formed in a jewel 27.
Patent GB-813853-A (GB)
Title: Improvements in or relating to magnetic amplifier power supply arrangements
IPC: H03K3/45
Filed: 1956-06-14
Abstract: 813,853. Magnetic amplifiers. SPERRY RAND CORPORATION. June 14, 1956 [June 28, 1955], No. 18433/56. Class 40 (9). In a magnetic amplifier circuit arrangement wherein the load is fed from an A.C. source of power pulses, inefficiency, due to the setting back of the core from a desirable standing condition such as A, Fig. 2, to a point such as C by current in the load winding resulting from the collapse of the magnetic field at the end of a pulse and the distributed capacity in the coil, is reduced by supplying pulses, the waveform of which pauses for a fraction of a cycle as at 31, Fig. 3, as it passes through the zero axis in one direction. Pulses from source 15, Fig. 1, feed a load 16 through a coil 13 on a core 10 which is normally at point A on the major hysteresis loop and is immediately driven into saturation by the pulse. The application of a pulse to a winding 11 resets the core to point E so that the succeeding power pulse which is only sufficient to drive the core to saturation region D is suppressed. A modified embodiment in which separate power input and load windings are employed is described with reference to Fig. 4 (not shown) and a waveform generator in which pulses in parallel paths one of which includes a delay line is described with reference to Fig. 5 (not shown). The outputs of the two paths are applied to the grids of two valves forming a combining circuit.
Patent GB-477891-A (GB)
Title: Improvements in or connected with joints for pipes, tubes and the like
IPC: F16L49/02
Filed: 1936-07-03
Abstract: 477,891. Pipe joints. ELLIOTT, J. H. July 3, 1936, No. 18457. [Class 99 (i)] In a joint as described in Specification 387,687 in which a part 3 of a packing ring is expanded against the socket by a tapered sheet metal ferrule E entering a split liner D, a clearance is left between the inner ends of ferrule and liner when in position in the joint. The liner may be cylindrical or have a slight convergent or divergent taper. The packing ring may have external annular ribs. Reference has been directed by the Comptroller to Specification 387,687.
Patent GB-1017974-A (GB)
Title: 8-azasteroids
Inventor: CLARKSON RICHARD
IPC: C07D455/03
Filed: 1963-05-10
Abstract: The invention comprises aza-steroids of the general formula <FORM:1017974/C2/1> wherein R1 stands for a lower alkyl radical containing not more than six carbon atoms and R2 stands for hydrogen or a lower alkyl, lower alkenyl or lower alkynyl radical containing not more than six carbon atoms and acid addition salts thereof, and the preparation thereof either by treatment of a compound of general formula <FORM:1017974/C2/2> wherein R1 and R2 have the meanings stated above with a base, for example, an alkali metal hydroxide or an alkali metal lower alkoxide or a tertiary organic base possibly in a diluent or solvent at a temperature between 10 DEG  and 60 DEG  C., e.g. at ambient temperature and in an inert atmosphere, for example, an atmosphere of nitrogen, or in the case of those compounds wherein R2 stands for a lower alkenyl radical by reduction of a compound wherein R2 stands for a lower alkynyl radical or a salt thereof for example by hydrogenation in the presence of a palladium on calcium carbonate catalyst optionally in the presence of a catalyst poison, for example pyridine.  Pharmaceutical compositions having progestational, androgenic and anabolic properties for oral or parenteral administration, e.g. as tablets, capsules, solutions, suspensions, emulsions or dispersable powders, comprise a compound of the first general formula above and one or more diluents or excipients, optionally with the addition of a known medicinal steroid.
Patent GB-185573-A (GB)
Title: Apparatus for measuring off and cutting strings in bundles
IPC: A47F13/04
Filed: 1921-07-12
Abstract: 185,573. Saleck, R. July 12, 1921. No Patent granted (Sealing fee not paid). String cutters.-An apparatus for cutting predetermined lengths of string in bundles comprises a base plate a, Figs. 1 and 2, carrying a fixed post b and a second post i which may be inserted in any of a number of tapered holes h in the base plate marked with figurea to indicate the length of string to be cut. The free end is inserted under a spring n on the post i, and the string is carried down a groove l in this post, across to the post b where it is clipped in a V-slot g in an angle iron f, around the two posts the desired number of times and finally to a slot g in a second angle iron f on the post b. A knife d pivoted within the post b is then brought down so as to cut the bundle of string. In a modification, a second movable post i<1> is introduced in order that longer lengths of string may be wound without increasing the length of the apparatus. The piece of string from the first slot g to the free end is tied round the bundle before the cutting operation to keep the lengths together.
Patent GB-223649-A (GB)
Title: Improvements in or relating to loud speaking telephonic apparatus
IPC: H04R13/02
Filed: 1923-07-23
Abstract: 223,649. Graham, E. A. July 23. 1923. Magnetic instruments.-The magnetic system of a loud-speaking telephone receiver is adjusted away from the diaphragm against the action of a spring by a lever of the first order and an adjusting screw. The magnets a, Fig. 1, which are pressed towards the diaphragm f by a spring c, have a stem b extending downwardly and notched on opposite sides at g to receive the forked end h<2> of a lever h of the first order. The lever is formed with a boss s to constitute a fulcrum, with bearings at the other end for a trunnion nut u through which passes an adjusting screw o. The screw works freely through a fixed support such as a leg d<2> of the telephone stand, and is provided with a knurled knob o<1>. A stop x on the base of the telephone casing and a cross pin w passing through the screw o limit the movement of the lever. Knife-edges v are formed on the forked end h<2> to bear on the walls of the slots g. In a modification, Fig. 4, the adjusting screw y fixed to the base of the telephone casing passes through a hole in the lever and has an adjusting nut z.
Patent GB-724236-A (GB)
Title: Process for the production of thermosetting polyamides
IPC: C08G69/26
Filed: 1952-07-28
Abstract: Thermosetting.  N-alkylol polyamides are prepared by heating in the presence of water a salt of a dicarboxylic acid and an N-alkylol diamine.  Other polyamide forming reactants may be present, e.g. salts of diamines and dibasic acids, amino acids and lactams.  The products are further polymerizable on heating to give insoluble products.  Reactants specified are N-ethylol decamethylene diamine, N,N1-bis-(ethylol) - tetramethylene diamine, N,N1-bis-(ethylol) hexamethylene diamine, N-(propylol)-hexamethylene diamine and N,N1 - bis - (propylol) hexamethylene diamine; glutaric, adipic, methyl-adipic, pimelic and sebacic acids; tetra- and hexamethylene diamine, diaminodipropylether, aminocaproic and aminoundecylic acids, caprolactam and oenrantholactam.  In examples, (1) 100 parts N.N1 - bis - (ethylol) - hexamethylene di - ammonium adipate and 5 parts of water are heated in a closed vessel for 3 hours to 200 DEG  C.  A viscous product is obtained which polymerizes to a dry foaming body on heating to 200 DEG  C.; (2) 10 parts N.N1-bis-(ethylol)-hexamethylene diammonium adipate, 90 parts caprolactam, 4 parts hexamethylene diammonium adipate and 2.5 parts water are heated in a nitrogen atmosphere for 6 hours to 260 DEG  C. A polyamide soluble in cresol is obtained which becomes insoluble on heating to 170 DEG  C.; (3) 5 parts N.N1-bis-(ethylol)-hexamethylene diammonium sebacate, 60 parts hexamethylene diammonium adipate, 40 parts caprolactam and 2.5 parts of water are heated as in (3).  The product is soluble in a 9 : 1 methanol/water mixture and can be cast into a film which on heating for 15 minutes to 170 DEG  C. becomes insoluble. Specification 732,059 is referred to.
Patent GB-687915-A (GB)
Title: Improvements in or relating to tractors
IPC: B62D49/02
Filed: 1951-08-14
Abstract: 687,915. Motorized agricultural implements. DUFOUR, L. Aug. 14, 1951 [Sept. 8, 1950], No. 19097/51. Class 6(i) [Also in Group XXXI] An agricultural tractor comprise an engine and transmission members, and a beam on which agricultural tools are mounted and which is pivotally supported on a stationary chassis provided with steering and driving wheels. A ratchet device is provided for each of the rear wheels and allows the power of the engine to be used to rock the beam to lift the tools clear of the ground. As shown, the beam is hinged about the rear wheel axis 9 and each rear wheel brake drum 10 is provided with ratchet teeth 11 against which a spring loaded 12, pivoted on the chassis 1, is arranged to bear. The pawl may be disengaged from the ratchet by a lever 17 and locked in this position in any suitable manner. The pawl may be provided with a counterweight 21, Fig. 4, so that it can be automatically moved into and out of engagement with the ratchet. The beam may be pivoted about an axis parallel to and rearwardly of the axis of the rear wheels or it may be pivoted on a finger 25 in the chassis, the beam being provided with a bearing 27.
Patent GB-833546-A (GB)
Title: Improvements in or relating to steroid compounds
IPC: C07J75/00
Filed: 1957-06-18
Abstract: The invention comprises 4b ,17b -diacetoxyetiocholan - 3 - one, 21 - succinate of di - [D 16-pregnene - 21 - ol - 3,20 - dione], 3a  - hydroxy-21 - acetoxy - D 16 - pregnene - 11,20 - dione, 3a ,17a  - dihydroxy - 21 - formyloxy - pregnane-11,20 - dione and 3a ,17a  - dihydroxy - 21-benzoyloxy - pregnane - 11,20 - dione, and the preparation of acyloxylated steroids by reacting a mono -, di - or poly - halogenated steroid with an alkali metal salt of a carboxylic acid in the presence of a solvent for the reactants consisting of or containing a major proportion of dimethylformamide.  The reaction is preferably carried out in an atmosphere of an inert gas.  The halogen atoms in the steroid reactants are preferably bromine atoms.  The alkali metal salt of the carboxylic acid may be a sodium, potassium or lithium salt.  Suitable steroid reactants are halogenated genins and their degradation products, sterols and their degradation products, bile acids and their degradation products, pregnanes, allopregnanes, etiocholanes, androstanes, 19-nor-steroid compounds, and derivatives of the aldosterone group of compounds containing a keto, hydroxy or acyloxy group in the 18-position. In the examples 3a ,17a -dihydroxy-21-acetoxy (and formyloxy and benzoyloxy)-pregnane - 11,20 - dione are prepared from 21 - bromo - 3a ,17a  - dihydroxy - pregnane - 11,20 - dione; 21 - acetoxy - D 16 - pregnene - 3,20-dione is prepared from 21-bromo- D 16-pregnene-3,20-dione; the 21-succinate of di[D 16 - pregnene - 21 - ol - 3,20 - dione] is prepared from 21-bromo- D 16-pregnene-3,20-dione; 3a  - hydroxy - 21 - acetoxy - D 16 - pregnene11,20-dione is prepared from 3a -hydroxy-21bromo - D 16 - pregnene - 11,20 - dione; 4 - bromo - 17a  - hydroxy - 21 - acetoxy (and hexahydrobenzoyloxy) - pregnane - 3,11,20 - trione are prepared from 4,21-dibromo-17a hydroxy - pregnane - 3,11,20 - trione (the hexahydrobenzoate may then be dehydrobrominated to form the hexahydrobenzoate of cortisone); 4 - bromo - 17a  - hydroxy - 21 - acetoxy - D 1 - pregnene - 3,11,20 - trione is prepared from 4,21-dibromo-17a -hydroxy- D 1pregnene-3,11,20-trione, and may then be debrominated with zinc and acetic acid to form 17a  - hydroxy - 21 - acetoxy - D 1 - pregnene - 3,11,20-trione or dehydrobrominated to form the 21-acetate of D 1-dehydrocortisone; 4b ,17b -diacetoxy - ethiocholan - 3 - one is prepared from 4b  - bromo - 17b  - acetoxy - etiocholan - 3 - one; 3a ,12a ,21 - triacetoxy - 24,24 - diphenyl - D 20(22)23-choladiene is prepared from 3a ,12a diacetoxy - 21 - bromo - 24,24 - diphenyl - D 20(22)23 - choladiene, and 3a ,21 - diacetoxyD 16 - pregnen - 20 - one is prepared from 21bromo - 3a  - acetoxy - D 16 - pregnen - 20 - one. Specifications 760,361, 760,362, 787,395, 828,601 and 832,245 are referred to.
Patent GB-879766-A (GB)
Title: Dispensing apparatuses for elongated articles
IPC: A24F15/04
Filed: 1960-05-31
Abstract: 879,766. Cigarette dispensers. GAVEREKLAME A.S. May 31, 1960 [July 22, 1959], No. 19234/60. Class 18. [Also in Group XXV] A cigarette dispenser comprises a hollow casing 10 mounted on rollers 14 which project up into the casing to support the lowest cigarette in the magazine and eject it through an aperture in the front of the casing when the dispenser is moved across a surface. Cigarettes are inserted through an aperture 11 which is closed by a hinged lid 13 fastened by a catch, and are stacked on guideways 18, 20a.
Patent GB-169049-A (GB)
Title: Improvements in and relating to attachments for submarine cable recorders
IPC: H04L15/30
Filed: 1920-07-07
Abstract: 169,049. Whitney, F. S. July 7, 1920. Relays.-In submarine cable recorders, the contacts controlling the circuits for the punching solenoids are arranged on a rotatable conducting disc 20 connected by silk threads 21 with the moving coil 18 so as to move with it. The line contacts 52, 53 rest against spring-urged arms 46, bearing on the disc contact 44 for the centre punching solenoid A, circuit being completed in the undisturbed position of the disc from battery 62, lines 70 and 72, contact 22, disc 20, contact 44, arms 46 and 47, contacts 52, 53, variable bridge resistance 61, line 77, vibrator 60, and line 78, to solenoid A and thence through lines 79 and 80 back to the battery. When the disc swings to right or left one of the arms 46, 47 breaks contact at 44 and the other is pushed by the contact 44 away from its line contact, while contact is made by one of the disc contacts 30, 31 to energize the dot or the dash solenoid B or C.