baber/WOPTO huggingface dataset:
Patent GB-671372-A (GB)
Title: An improved method of shaping workpieces and apparatus for performing same
IPC: B24B5/26
Filed: 1949-01-28
Abstract: 671,372. Centreless grinding. MASON, A. C. Jan. 28, 1949 [Jan. 28, 1948], No. 2396/49. Class 60. [Also in Group VII] A method of shaping a work-piece comprises simultaneously rotating the work-piece and feeding it axially while progressively removing stock from a number of annular zones spaced along its length. The method is carried out in a centreless grinder in which a grinding wheel 56, Fig. 1, is provided with helical ribs 146, Fig. 3, and driven by multiple V-belts 12 from a motor 4, while the regulating wheel 54 is driven through a double chain drive from a countershaft 68 and the grinding wheel. The support 26, Fig. 6, for the regulating wheel is mounted on a bar 28 one end of which is provided with a spherical collar 34 supported in a fixed bearing 22 while the other end is supported in a block which can be adjusted along a guide way 36 towards and away from the grinding wheel by a screw 46, locking means being provided for the block. This adjustment enables the regulating wheel axis to be inclined to the grinding wheel axis in the horizontal plane. To enable a similar adjustment to be effected in the vertical plane, the regulating wheel is connected to its support 26 by a pivot 82 and a screw 88, an indicator 85 and a locking bolt 84 being provided. The throat size is determined by setting a micrometer 104 fixed to the standard supporting the grinding wheel and advancing the regulating wheel bodily towards the grinding wheel until an abutment surface on the regulating wheel mounting makes contact with the micrometer. The regulating wheel is advanced by a screw 102 which incorporates a spring to allow the regulating wheel to move and free the work if the latter should seize in the throat. The work is fed along a work-rest blade which is provided with an inverted L-shaped guide at the inlet end and a trough at the discharge end to collect the workpieces and deposit them in a container. To ensure the retention of the work in the throat, a guard is secured to the grinding wheel mounting so that it overlies the work-rest blade. Successive zones on the stock are cut progressively deeper by the ribs of the grinding wheel until, at some point such as 147, the stock is severed into separate solids of revolution which continue to be ground until they emerge from the throat. The grinding wheel or the regulating wheel may be made in the form of a hyperboloid. Regulating wheels so formed are made of rubber in order that the variation in peripheral speed along the length of the wheel will not produce an abrasive effect. The stock may be solid or tubular and of plastic or other composition.
Patent GB-284335-A (GB)
Title: Improvements in or relating to automatic telephone systems
IPC: H04Q3/00
Filed: 1928-01-25
Abstract: 284,335. Siemens & Halske Akt.-Ges. Jan. 29, 1927, [Convention date]. Drawings to Specification. Automatic exchange systems. - A connector used for establishing ordinary calls and containing a feed-bridge for called lines can be used by a toll operator to proffer a toll call to a busy line, the operator in such case applying battery to one of the, speaking wires to energize one of the bridge relays, which establishes a talking circuit independently of the switching contacts of the test relay. The parties on the busy line are asked to disconnect themselves, and when they have done so the test relay switches through; or the operator may release the toll connection and esbablish it again after recalling the calling toll subscriber. The connector is the same as in Specification 284,333, except that the relay Y is provided with contacts for bridging the switching contacts P2 (35, 36) through condensers, and relays Y and C2 are provided with additional contacts to complete the circuit of the test relay when a busy called party disconnects himself. Battery applied by the toll operator to the b-wire energizes the lower winding of relay Y over A2(21).
Patent GB-827964-A (GB)
Title: Improvements in fluid feeding means
IPC: F16L27/093
Filed: 1954-10-25
Abstract: 827,964. Hydraulic jacks. CHASESIDE ENGINEERING CO. Ltd., JACKSON, G. L. G., and LESKIEN, G. F. Jan. 25, 1956 [Oct. 25, 1954], No. 2474/56. Divided out of 825,701. Class 69(2). A pivotally mounted single-acting hydraulic jack has a supply pipe 10 connected to a hollow pin 1 on which is rotatably mounted a sleeve 19 integral with the jack piston rod. The piston rod has an axial bore 21 for the passage of liquid.
Patent GB-415328-A (GB)
Title: Rear wheel cycle stand with combination lock
IPC: B62H1/00
Filed: 1934-01-25
Abstract: 415,328. Clips; permutation locks. BERGER, H., 18, Oberdorfstrasse, Essen, Germany. Jan. 25, 1934, No. 2578. [Class 44.] A rear-wheel cycle stand 1, Fig. 1, adapted to be automatically locked in the operative position, is provided with a semicircular member 2 having at one end a bifurcation 2<a> formed with apertures to be engaged by pivoted spring-actuated catches in a permutation lock 3, the other end of the member 2 being provided with an arrow-head 2<c> adapted to be held in a spring clip 17 when the stand is in the inoperative position. The pivoted catches 9, Fig. 3, engage apertures 2<b> in the bifurcation 2<a>, and are adapted to be released by a slidable spring- urged bolt 11, Fig. 7, passing through a slot in the upper part 3<a> of the lock and having inclined shoulders 13 adapted to wedge apart the upper ends of the catches 9, a finger knob or pressure flange 11<a> being provided at the outer end. To permit actuation of the bolt 11, rotatable discs 4 must first be adjusted by means of hands 6, 6<a> moving over a dial, so that radial slots 4b, Fig. 6, register with an upstanding pin 14, Fig. 7, on the bolt. The discs 4 are provided with notches 4<a> to prevent picking by simultaneous actuation of the discs and bolt. The clip 17 is formed of two bent spring strips bolted at one end around the cycle frame, one strip being provided with a stop pin to limit the entry of the arrow head 2<c> and thus prevent undue distension of the clip.
Patent GB-1528223-A (GB)
Title: Process for preparing 1,4-naphthalene-dicarboxylic acid esters
IPC: C07C69/76
Filed: 1976-01-23
Abstract: 1528223 Preparation of naphthalene-1,4- dicarboxylic acid dialkyl esters HOECHST AG 23 Jan 1976 [28 Jan 1975] 02676/76 Heading C2C The invention comprises a process for the preparation of a 1,4-naphthalenedicarboxylic acid ester by reaction of #-1-pyrrolidinocyclohexene with a muconic acid dialkyl ester to form a 4,4a,5,6,7,8-hexahydronaphthalene-1,4- dicarboxylic acid ester and dehydrating said ester to obtain the corresponding naphthalene- 1,4-dicarboxylic acid ester. In the example dimethylmuconate is reacted with #-1-pyrrolidinocyclolixane to obtain dimethyl - 4,4a,5,6,7,8 - hexahydronaphthalene- 1,4-dicarboxylic acid which is dehydrogenated by heating with sulphur.
Patent GB-758948-A (GB)
Title: Electrical surface heating apparatus
Inventor: FARRIES ALEXANDER GORDON
IPC: B64D15/12
Filed: 1954-01-29
Abstract: 758,948. Electric heating resistances. NAPIER & SON, Ltd., D. Jan. 21, 1955 [Jan. 29, 1954], No. 2710/54. Class 39(3). Adjacent ends of thin electric heating strips 1, 2 e.g. of sprayed aluminium are connected, so that the strips are in series, by a connecting conductor 7 which is narrower than the heater strips, is of better conductivity e.g. at least partly of silver or copper and contacts the ends of the heater strips 1, 2 over their full widths ; and the heating effect per unit of area of connecting conductor is arranged to be the same as that of the strips. The thickness of the connecting conductor 7 is greater than that of the strips 1, 2 but its width is less than one third or one quarter of that of either strip. The conductor 7 may also be formed by spraying through a stencil. Thus a strip of conductor material may first be sprayed on a ron-conducting surface, e.g. of plastic, then two resistance strips are sprayed with their ends extending over the conductor and finally an upper layer of conducting material may be sprayed on. The heating strips 1, 2 may be parallel or at an angle e.g. an acute or a right angle, and in the last case, the conductor strip 7 is L-shaped. Cold spots at the outer corners of the heating strips are thus avoided. De-icing equipment for aircraft may be formed by spraying a layer of thermosetting plastic adhesive on a metal aircraft skin, then spraying on the metal strips 1, 2, 7, spraying a coating of plastic over all and then heating to cure the plastic. Specifications 703,374 and 740,551 are referred to.
Patent GB-812970-A (GB)
Title: Swinging shear spray
Inventor: DENMAN ROBERT RICHARD
IPC: C03B7/10
Filed: 1956-01-27
Abstract: 812,970. Severing molten glass. OWENSILLINOIS GLASS CO. Jan. 27, 1956, No. 2714/56. Class 56. In the severing of gobs of glass from a stream issuing from the bottom outlet of a furnace forehearth, spray nozzles 40 are so associated with the shear blades 13 that they move therewith for a pair only of the movement of the blades. Their inward movements terminate at the positions 40a so that spray therefrom does not come into contact with the glass ; on the opening movement of the blades the nozzles pick up the motion at 40a and move with the blades to fully open positions. The pipes 25 supplying the nozzles are carried by brackets 27 pivoted at 17 about which levers 45 also move, these levers being pivoted to toggle links 47, 53 with an adjustable link 49 between the toggle pivot 48 and a stationary point 50. The link 53 is pivoted at 54 to a plate 52 on the shear arm 16.
Patent GB-562224-A (GB)
Title: New or improved means for supporting shelves in ovens
IPC: F24C15/16
Filed: 1943-02-20
Abstract: 562,224. Supports for oven shelves. PARKINSON STOVE CO., Ltd., and LUSK. A. Feb. 20, 1943, No. 2860. [Class 126] Shelves are supported within an oven by horizontal tubes or rods a, l cranked outwardly at their front ends b, m, the front and rear ends being in readily detachable engagement with means, such as the headed studs c, Fig. 1, or flared sockets n, Fig. 2, secured by nuts to the side and rear walls e, d of the oven. When rods are employed the ends are slotted at p to provide a frictional grip in the sockets n.
Patent GB-939100-A (GB)
Title: Process for producing 7-dehydrosterol derivatives
IPC: C07J75/00
Filed: 1962-01-25
Abstract: 7-Dehydrosterol derivatives are prepared by heating 7-halogenated sterols having a 5.6-double bond and a protected 3-hydroxy group at a temperature of at least 80 DEG C. in the presence of quinolidine-formamide complex or quinoldine-urea complex.  The 7-halogen atom may be in the alpha or beta configuration.  The protected hydroxy group may be an ether or ester thereof such as a formate, oxalate, propionate, butyrate or stearate ester.  In the examples, 7-dehydrocholesteryl benzoate is prepared from 7b -bromocholesteryl benzoate.  Specifications 574,432 and 736,589 are referred to.
Patent GB-1517055-A (GB)
Title: Installation for heating a fluid using the waste heat produced by a number of refrigerators
IPC: F25B7/00
Filed: 1976-01-26
Abstract: 1517055 Refrigeration; heat pumps; central heating PROJECTUS INDUSTRIPRODUKTER AB 26 Jan 1976 [18 Feb 1975] 02937/76 Headings F4H and F4U An installation for heating a fluid, e.g. water in a central heating system, comprises a plurality of refrigerators 1 having condensers 6 in heat exchange relationship with evaporators 19 which are connected in parallel in a heat pump circuit 18 including a condenser 26 in heat exchange relationship with the fluid to be heated. Each refrigerator circuit 2 includes two condensers 6, 7, one 6 being in heat exchange relationship with an associated evaporator 19 and the other 7 having a by-pass 10 including a valve 11 which may be controlled by the difference between the refrigerant pressure at the condenser outlet and the external pressure to maintain a specific pressure in a reservoir 9. A by-pass 30 is provided between the heat pump compressor outlet and the downstream side of the evaporators 19 and includes a valve 31 which opens when the outlet pressure falls to a predetermined level. A second by-pass 32 is arranged in parallel with the evaporators 19 and includes a valve 33 controlled by the temperature adjacent to the compressor inlet. The capacity of the compressor 24 may be controlled by the inlet pressure of the compressor and the compressor may be switched on and off in dependence on the coolant temperature in the condenser 26.
Patent GB-209310-A (GB)
Title: Improvements in sewing machines
IPC: D05B27/18
Filed: 1923-02-01
Abstract: 209,310. Thompson, W. P., (Union Special Machine Co.). Feb. 1, 1923. Stockings.-Tubular knit stockings are shaped and seamed from a to b, a false seam being also sewn from 2 to a and from b to the top of the stocking.
Patent GB-1360507-A (GB)
Title: Fabric laying machine
IPC: A41H43/00
Filed: 1971-09-17
Abstract: 1360507 Folding fabrics CUTTER MACHINE CO INC 17 Sept 1971 [21 Sept 1970] 02992/74 Divided out of 1360506 Heading D1S The description is identical to that of Specification 1360506 but the claims are directed to a fabric laying machine comprising a fabric feed roll drive means, first means for driving the drive means at a first speed, second means for over riding the first means according to tension in the fabric and for driving the drive means at a second faster speed, and third means for overriding the first and second means according to a fabric laying carriage frame of the machine becoming adjacent the end of its path and for driving the drive means at a third speed faster than said second speed.
Patent GB-136704-A (GB)
Title: Improvements in Puddling Iron.
Inventor: WHITE ALFRED ERNEST
IPC: C21C3/00
Filed: 1919-02-07
Abstract: 136,704. White, A. E., (Byers Co., A. M.). Feb. 7, 1919. Charges, agitating.-Iron is puddled by horizontally-reciprocating rabbles. The side walls of the furnaces are formed above the level of the hearth with horizontal slots 6 in which move the shafts 7 of the rabbling-tools. These are supported outside the furnace on carriages 24 running on tracks 22, and are secured in turn thereto by spring- pressure blocks 27 mounted in clamps 25. Rotation of a tool on its axis is prevented by a pin 30 passing through a flange on the block 27 and the shaft 7. The slots 6 are covered by belts 8 formed of wire rope and asbestos woven into a fabric or secured by metal bands, the belts being attached to the shafts of the tool by hook couplings, and being wound on drums at each end of the furnace. These drums are mounted so that they can be driven simultaneously in one direction from a motor through suitable gearing, and can turn freely in the other direction. The motor is automatically reversed when the carriage, at the end of its travel, contacts with the upturned end 33 of a loose rail 32 connected through a bell-crank lever 34 with a switch 35. The motor may also be stopped or reversed at any point of the travel of the carriage by tongs 31 adapted to grip the rail 32. An operator's seat 38 is secured to each carriage. The operating-tools are three in number, viz., the rabbler proper, a combined scoop and cutter, and the balling-tool. The rabbler shown in Fig. 5 consists of a plate 39 with openings 41 through which the molten metal passes as the tool is moved along the furnace. The scoop, consisting of a curved plate 42, Fig. 17, and the cutter or breaker, consisting of a series of curved teeth 43, are mounted on the same shaft, while the balling-tool is formed by a number of straight teeth spaced apart on a shaft by collars. The working parts of the tools are constructed in sections with a metal core a, a metal facing b, and an intervening layer of clay or other heat-resisting material. At one end of the hearth, a swing- ing door is provided to give access to a chamber in which the tools may be cooled when necessary.
Patent GB-722825-A (GB)
Title: Improvements in or relating to optical cement
IPC: G02B1/00
Filed: 1952-02-06
Abstract: A product suitable for use as an optical cement is obtained by melting a cellulose ester of an acid having from 6 to 20 carbon atoms per molecule, holding the molten ester under a reduced pressure for a period of time sufficient to de-aerate it thoroughly and then cooling it to form a clear solid. Alternatively the ester is dissolved in a volatile non-reactive solvent and the solvent is then removed by evaporation under a reduced pressure at a temperature above the melting point of the cellulose ester, so as to produce a solvent-free de-aerated molten mass of the ester which is then cooled and solidified.  If desired, part of the solvent may be removed by evaporation at atmospheric pressure, the remainder being removed under reduced pressure.  The cellulose ester may be an ester of caproic, heptoic, caprylic, nonylic, capric, undecylic, lauric, tridecylic, myristic, pentadecylic, palmitic, margaric, stearic, nondecylic or arachidic acid, or of an aromatic acid or aromatic substituted aliphatic acid, e.g. a phenyl, tolyl, xenyl, xylyl or naphthyl substituted aliphatic acid.  It may be a mixed ester, e.g. an ester containing radicals of aliphatic and aromatic or aryl-substituted aliphatic acids.  The cellulose ester products have refractive indices which are the same as or only slightly different from that of optical glass.  The cellulose esters used are preferably those having degrees of esterification between 2 and 3 mols. of acid per cellulose unit.  In an example, cellulose caprate is slowly melted and heated to 150 DEG  C. (about 60 DEG  C. above the melting point) and held at that temperature under a reduced pressure of 5-10 m.m. of mercury, thereby removing all occluded and adsorbed air.  The molten material is filtered and then cooled and solidified under reduced pressure.  In another example, cellulose caprate in granular form is extracted with a mixture of methanol and water and then dried and dissolved in toluene.  The solution is filtered several times through sintered glass filters and then centrifuged in a high-speed centrifuge.  The upper portion of the solution in the centrifuge tubes is syphoned off and placed in a glass vessel which is then heated to 110 DEG  C. and subjected to a gradual lowering of pressure so as to evaporate the solvent and produce a molten mass of solvent-free and air-free cellulose caprate.  The mass is then solidified by cooling.  A heated rod of brass is pressed into the solid mass and allowed to cool, forming a handle.  The glass vessel is then heated for a few minutes to loosen the mass of cellulose caprate from the glass and the handle with the adhering mass is withdrawn.  If desired a small proportion of a plasticizer, preferably one with fungicidal properties such as pentachlorphenol or 4-hexyl-m-cresol acetate, may be blended with the molten cellulose ester.
Patent GB-980172-A (GB)
Title: Method of making magnetically anisotropic permanent magnets
Inventor: MADONO OSAMU
IPC: H01F1/04
Filed: 1961-01-26
Abstract: 980,172. Casting processes. RIKEN PISTON RING KOGYO CO. Ltd. Jan. 26, 1961, No. 3143/61. Drawings to Specification. Heading B3F. A method of making permanent magnets of anisotropic Al-Ni-Co-Cu type alloy which have a columnar crystalline structure in parallel alignment, comprises preparing a mould, preferably a multi-cavity mould, with a large riser, of alumina, sillimanite zircon or magnesia, in which the volume ratio of the cavity or cavities excluding the riser to the mould as a whole is at least 50% and the depth of the cavity or cavities is a multiple of the maximum breadth, preheating said mould, transferring the preheated mould to a chilling plate just before pouring, then pouring the molten alloy into the mould and finally cutting the castings thus obtained to a final shape of shorter length. Reference has been directed by the Comptroller to Specification 652,022.
Patent GB-555992-A (GB)
Title: An improved apparatus for balancing rotating bodies such as aeroplane propellers
IPC: G01M1/28
Filed: 1942-03-12
Abstract: 555,992. Measuring unbalance of rotors. UNITED AIRCRAFT CORPORATION. March 12, 1942, No. 3287. Convention date, April 29, 1941. [Class 40 (i)] [Also in Group XIX] Vibration from the rotating body in situ affect an electrical pick-up, while a generator rotated with the body produces electrical impulses, and the product of the in-phase positions of the two series of impulses is measured, a remote control being connected. between the generator and measuring instruments for electrically shifting the positional relationships between the generator and rotating body. An electrical pick-up 24 is placed on the floor 16 of the pilots' compartment and produces electrical impulses according to the vibration of the floor. The armature 26 of the pick-up is flexibly supported by springs 30 in a casing 28, and a coil 32 is mounted on a suitable core 34 secured to the casing. A three-phase generator 36 is mounted on a collapsable stand 38 for ground tests and is connected to the propeller by a coupling 40. For tests during flight, the generator may be mounted on the engine. The generator has a, two-pole armature 42 rotatable with the propeller and a three-phase field 44 connected to the three-phase field 46 of an angularly adjustable transformer 48 the core of which is a single-phase coil 50 manually rotatable relative to the field 46. By this means, the effective angular position of the generator 36 relative to the propeller 22 can be manually shifted by the remote control transformer or phase shifter 48. The core 50 of the transformer 48 is connected with the field coil 52 of a watt-meter 54. This wattmeter has a movable swinging coil 56 carrying a pointer 60 moving over a dial 62. This coil is connected with the coil 32 of the pick-up. The pick-up will produce current impulses in the coil 56 while the generator 36 will produce current impulses in the coil 52. When these are in phase, a torque is exerted on the movable coil proportional to the product of the current strengths in the coils and this will vary as the phase relation between the coils varies. In use, the core 50 is rotated until the reading of the meter 54 is zero, it being assumed that the angular relationship between the core 50, the armature 42 and the propeller is known. This zero reading indicates the angular position of the propeller at which the peak voltages of generator and pick-up are 90 degrees out of phase. The watt-meter indication at a position of core 50, 90 degrees from the above reading in the direction of positive meter indications will constitute a measure of the initial unbalance. The scale of the watt-meter may be calibrated by fixing to the propeller a known mass in a known angular position at a known distance from the axis, measuring the unbalance due to the continued unbalance and subtracting that due to the initial unbalance which give the unbalance due to the added mass.
Patent GB-214365-A (GB)
Title: Improvements relating to combined casement stays and fasteners
IPC: E05C17/18
Filed: 1923-02-05
Abstract: 214,365. Showell & Sons, Ltd., E., and Johnson, A. E. Feb. 5, 1923. Stays. - A member 9 arranged to swivel in an attachment plate 7 is pivotally connected to a stay bar 8 by a link 10<a> provided with an arm 9<b> adapted to be engaged with an upstanding lug 14 on the fixed frame when the window is closed, the parts 9<b>, 14 being disengaged by a lifting movement of the stay when it is desired to open the window. The usual pin 13 on the fixed frame is also provided for engagement with a hole in the perforated bar when the window occupies an open or closed position. When the window is closed and the stay S is lifted about its pivot 12 to clear the pin 13, the stay is moved into contact with a shoulder 10<b> of the link 10<a> and the member 9 is rotated to move the arm 9<b> out of engagement with the lug 14. The stay is thus rotated so as to be in alignment with the member 9 and the window is pushed open and secured in an adjusted position by the engagement of the bar 8 with the pin 13.