baber/WOPTO huggingface dataset:
Patent GB-776181-A (GB)
Title: Manufacture of polymeric materials
Inventor: COFFEY DAVID HAY
IPC: C08F265/04
Filed: 1954-10-01
Abstract: Vinyl acetate is catalytically polymerized in aqueous emulsion in the presence of polyglyceryl methacrylate.  Catalysts specified are ammonium, sodium and potassium persulphates and perborates, peroxides such as hydrogen peroxide and optionally unspecified reducing agents. Sodium carbonate may be included when using a persulphate, in order to increase the stability of the polymer dispersion, and additional surface-active agents such as sulphonated oils, e.g. sulphonated methyl oleate, soaps, quaternary salts such as cetylpyridinium bromide, and polyethenoxy derivatives, may also be added.  The polyglyceryl methacrylate may be prepared as described in Specifications 695,633 and 648,959. In examples the ingredients are added continuously.  The products are stable dispersions of small particle size, e.g. 1 micron.
Patent GB-391771-A (GB)
Title: Improvements in or relating to switch devices for overhead electric transmission lines
IPC: H01H3/46
Filed: 1931-10-13
Abstract: 391,771. High-tension switches. ELECTRIC TRANSMISSION, Ltd., Culford Works, Kingsbury Road, Islington, London, and JOHN, W. J., 134, Brighton Road, Purley, Surrey. Oct. 13, 1931, No. 28404. [Class 38 (v).] In an electric switch for use with overhead transmission lines, the movable contacts and their support are counterpoised by a weight or spring means, and are operable through a compound lever system to lower them to ground level for inspection and renewal of fuses &c. In the construction shown the movable contacts 1 of the switch are carried by a frame 2 mounted on an axle 3, and are operated by a hand-lever 10 pivoted at 12 through a compound lever system represented by the members 2, 6, 7, 10. The counterweight 14 is attached to the operating lever 10, and its magnitude may be reduced by constructing the compound lever system to give a mechanical advantage. To facilitate opening the switch, limited lost motion may be provided either between the members 6, 7 by means of a pin-and-slot connection, or between the axle 3 and frame 2 or lever 6. A weighted arm 17 may be attached to the axle 3 to assist opening the switch.
Patent GB-477185-A (GB)
Title: Improvements in and relating to rotary blowers compressors or vacuum pumps for internal combustion engines
IPC: F04C18/344
Filed: 1936-10-20
Abstract: 477,185. Rotary compressors. ARNOTT, F. H. Oct. 20,1936, No. 28467. [Class 110 (ii)] In a compressor of the sliding - rocking vane type, having slotted trunnions 4 in the rotor 1 to accommodate the vanes, the ends 6 of the solid trunnions are of less diameter than the trunnions in the region of the slots, to allow a greater quantity of lubricating oil to be retained between the ends 6 and their housings, than over the rest of the trunnion area. Alternatively, each end 6 may be of the same diameter as the remainder of the trunnion, and the housing diameter increased. The ends 6, or the housing bores, may be grooved.
Patent GB-242998-A (GB)
Title: Improvements in and relating to shock absorbing devices for weighing scales
IPC: G01G23/08
Filed: 1925-11-12
Abstract: 242,998. Berkel, C. F. M. van. Nov. 13, 1924, [Convention date]. Dash-pots of the cylinder and piston type having an air inlet with two oppositely disposed valve seats and a co-operating valve adapted to check sudden or abnormal movements in both directions, is combined with the lever system of a weighing scale. Too rapid flow of the fluid into or out of the cylinder through the passages 4, 5 is prevented by a valve 9 adapted to engage either of two seats in the block 11. After this damping action has taken place, the valve 9 falls back and permits normal damping action which is controlled by a screw 8 obstructing the passage 6 to the atmosphere when air is the damping medium. When oil or other liquid is employed, the passage 6 is replaced by a conduit 7 leading to the top of the cylinder.
Patent GB-226653-A (GB)
Title: Improvements in and connected with car coupling devices
IPC: B61G5/04
Filed: 1923-11-12
Abstract: 226,653. Jensen, C. A., (Buckeye Steel Castings Co.). Nov. 12, 1923. Couplings, automatic, convertible to non-automatic.-In a combined automatic coupler and chain device in which the automatic coupler comprises a notched knuckle through which a vertical pivot pin is passed near the free end thereof, the pin forming a means of attachment for the chain coupling, an attachment device is employed comprising a horizontal eye 7 entering the notch and pivotally engaging the pin 4 and a vertical eye 8 pivotally engaged by a link 10 of the chain coupling. The mouth of the slot in the knuckle is flared out at 6 to house the eye 8, and lugs 9 may be formed at the rear of the eye 7 to bear against the inside of the knuckle 3. The link 12 which passes over the hook 2 is shaped internally to approximately the cross-sectional contour of the hook 2.
Patent GB-1341924-A (GB)
Title: Continuous doughnut making apparatus
IPC: A21C11/16
Filed: 1971-06-17
Abstract: 1341924 Extruding dough rings DUNKIN DONUTS Inc 17 June 1971 [28 July 1970] 28488/71 Heading B5A Apparatus for producing doughnut rings and/ or solid doughnuts includes a chamber 2, containing paddles 12, 14 driven by a motor 16, to which the doughnut ingredients are fed via a pump 10 and pipe 6; the resultant dough is forced through a passageway 20 to a chamber 22 provided with openings 62, 74 co-operating with vertically reciprocal cutting dies 26, 28 whereby on upward movement thereof doughnut rings 66 are cut off and deposited on a carrier C. Each die is carried on a stem 30, connected to a piston slidable in a pneumatic cylinder, such as 42. The top surface 76 of each die is sloped to compensate for the unequal flow of dough through the chamber 22 thereby to provide rings of uniform cross-section. In order to simultaneously or sequentially provide dough lumps for the production of solid doughnuts, tubes 86, 88 are connected to openings 98 in the chamber 22 whereby, when valves 118, 120 are retracted by pneumatic cylinders 126, 128 dough passes into the tubes and flows therefrom via openings 100 and is cut into lumps by the return of the valves.
Patent GB-809141-A (GB)
Title: Reactance tube circuit
Inventor: ANDERSON ELDON
IPC: H03C3/14
Filed: 1956-09-18
Abstract: 809,141. Frequency modulation. COLLINS RADIO CO. Sept. 18, 1956, No. 28523/56. Class 40 (5). To improve linearity of frequency modulation a push-pull reactance modulator includes two quadrature phase-shift resonant networks, each comprising a condenser and inductance, connected between the anodes and cathodes, and a tunable oscillator connected to the anodes of the push-pull valves. In the embodiment described an audio signal is applied in push-pull to the suppressor-grids of valves V1 and V2, Fig. 1, through a transformer 21. An oscillator voltage Eo exists across the anodes of valves V1 and V2 so that alternating currents I1 and I2 pass through resistors R1, R2, capacitors C1, C2, and inductances L1, L2 to produce 90 degrees lagging voltages across the capacitors and 90 degrees leading voltages across the inductances, the capacitors and inductances having values such that the absolute grid voltage EG1 across inductance L1 will equal EG2 across condenser C2. Under no modulation conditions the anode currents of V1 and V2 cancel and the valves have zero reactance, the net effect of the circuit being determined by the values of R1 and R2. When a signal is applied the net output current of the valves is proportional to the signal voltage, the current leading when the voltage goes positive and lagging when it goes negative. The output impedance will thus vary capacitively on positive swings and inductively on negative swings.
Patent GB-712385-A (GB)
Title: Improvements in or relating to transfer devices for floor supported carriers
Inventor: BOYKO JOHN
IPC: B65G25/00
Filed: 1952-11-13
Abstract: 712,385. Rope railways. WEBB CO., J. B. Nov. 13, 1952, No. 28587/52. Class 104(2) A transfer device for moving a floor sup- .ported carrier, provided with a downwardly projecting drive pin, out of the path of travel of a propelling member engaging the drive pin has a transfer arm, preferably power actuated, mounted for lateral divergent, movement from a position in which the.. arm intercepts the drive pin being driven by the propelling member to a position in which the pin is moved out of the travel path of the propelling member. A driving chain is suspended below floor level from idler trolleys 24 and driving trolleys 17 and propels a drive pin 22 of a floor truck by means of. an abutment 19 on the drive trolley. The transfer arrangement shown in Figs. 4 and 5 comprises an arm 42, the upper face of which is at floor level, mounted on pins 45, 46 extending through bushes 47, 48 which ride on the upper surface of a cam plate 49. while pins 45, 46 are journalled in rollers which run in cam slots 52, 53 formed in the plate 49. The pin 45 has am extension 56 journalled at its lower end in a roller 57 which runs in a slot-formed, in a plate 58 and extending parallel to the slot'52. The arm 42 ' is actuated by a fluid pressure piston 60 pivotally attached to the extension 56 and mounted in a cylinder 60a pivotally attached to a fixed plate 62. The arm 42 is moved from the chain dotted position, Fig. 4, in which it intercepts a floor carriage drive pin 43a running in a track 40 to the full line position to which the derive pin is drawn through a slot 64 at floor level to be left at 43b on a parallel track 41. The top portions of members 50, 50a, 51, 51a are cut away to provide clearance for the arm 42 in its extreme positions.
Patent GB-959349-A (GB)
Title: A process for producing glutamic acid from fermentation broth
IPC: C12P13/14
Filed: 1962-07-25
Abstract: Glutamic acid is obtained from a glutamic acid fermentation broth still containing bacterial cells and having a pH of from 5.0 to 10.5 by treating with zinc ions, adjusting the pH to 5.5 to 7.5 to crystallize zinc glutamate, treating the separated crystals with acid to a pH of 2.5 to 4 to crystallize glutamic acid and separating from the mother liquor. This mother liquor containing zinc ions may be used as a source of zinc ions in a subsequent batch.  A portion of the mother liquor may be diluted and contacted with a cation exchange resin to absorb the zinc ions, there are then eluted with a further portion of mother liquor and used to treat another batch of fermentation broth.
Patent GB-711242-A (GB)
Title: Improvements in or relating to an end closure structure for cartons
Inventor: WILCOX ISAAC LOUNSBURY
IPC: B65D5/12
Filed: 1951-12-10
Abstract: 711,242. Cartons. OSWEGO FALLS CORPORATION Dec. 10, 1951, No. 28860/51. Class 18 A liquid-tight carton is formed by applying an end closure blank 23 to a polygonal tube 20 held on a mandrel 27, the edges of the blank 23 being folded down against the sides of the tube and the excess material at the corners being first folded into diagonal folds 43 and then pressed against the carton sides. The joint is consolidated by adhesive previously applied to the blank and tube. The blank 23 is held against the top of the mandrel 27 by a presser foot (not shown), and a die 30 moved downwardly to turn down the blank edges. The corners of the die opening are relieved at 33 to permit the formation of the corner folds, the slope 34 of the relieved corners compressing these folds outwardly as at 46 and against the tube sides. The outer surface of the tube and inner surface of the blank may be entirely covered with thermo-plastic adhesive coats 40 and the blank outer surface may have a coat 42 of thermo-setting material.. Heated presses 50, 51 advancing against the sides of the tube secure the joint. The various box-forming elements may be as described in Specification 709,454.
Patent GB-735997-A (GB)
Title: Record changer
IPC: G11B19/265
Filed: 1953-10-20
Abstract: 735,997. Change-speed gear. KNECHT E. Oct. 20, 1953 [Nov. 25, 1952; Sept. 25, 1953], No. 28964/53. Class 80 (2). [Also in Group XXXVIII] A variable-speed gear for a record changer (see Group XXXVIII) comprises a friction wheel 1 on the motor shaft which wheel engages one of three wheels 4a, 4b, 4c mounted on a rotatable disc 11 and which drive the turntable 2 through an intermediate wheel 5. The disc 11 is rotated to bring either of the wheels into driving engagement by reciprocating a lever 20 which causes a pawl 19 to engage in one of several notches 21 in the disc and rotate it a sixth of a revolution for each stroke of the lever 20. The driving wheels are kept in engagement by a spring 16. In a construction, Fig. 3, for making the speed of the control shaft 44 independent of the speed of the turntable spindle 28, a shaft 30 is raised at the appropriate moment to bring gears 31, 29 into engagement to drive the shaft, and a shaft 40 is raised or lowered to engage either pair of gears 37, 34; 38, 35 or 39, 36 depending upon the speed of the turntable, which may be driven by a mechanism of the kind described with reference to Fig. 1. The lever 45 for moving the shaft 40 may be coupled with the adjusting mechanism of the change-speed gear.
Patent GB-309368-A (GB)
Title: Improvements in or relating to change-speed control mechanism for motor vehicles
IPC: F16H59/04
Filed: 1928-10-09
Abstract: 309,368. Halley Motors, Ltd., and Gilchrist, H. G. Oct. 9, 1928. Controlling variable-speed gearing. - Changespeed gearing in a casing R is controlled from a lever A which moves in a gate B at a distance upon a vehicle. The longitudinal and turning movement imparted to a control shaft C directly by lever A are reproduced in a selector shaft J with arm K inside casing R. For this purpose, a triangular frame F is braced between two pivoted connections upon levers D', D<2> fast on shaft C and has a. suitable ball or like connection G with a lever H fast on shaft J.
Patent GB-1523711-A (GB)
Title: Hydroxy-succinimide ester derivatives and their use in the cross-linking or carrier fixing of proteins
IPC: C07K16/00
Filed: 1977-07-11
Abstract: 1523711 Proteins cross-linked or bound to carriers BOEHRINGER MANNHEIM GmbH 11 July 1977 [14 July 1976] 28990/77 Heading C3H [Also in Division C2] Novel compounds useful for the production of covalent bondings of proteins, especially of biologically active proteins, for the purpose of cross-linking or carrier fixing, comprise hydroxysuccinimide ester derivatives of the formula wherein X is a further carboxy-succinimide ester radical or a radical of the general formula A is an -O(CH2)2- radical when n is Z and X is a further succinimide ester group but otherwise is a single bond; n is an integer from 2 to 7; m is 1, 2, 3 or 4; R is hydrogen, methyl or cyano and R<1> is methyl or ethyl. In the examples, kidney acylese and glucose isomerase are cross-linked, and angiotensin bonded to bovine serum albumin.
Patent GB-266642-A (GB)
Title: Improvements in clamps or clips for fixing of hose pipes to metal nipples
IPC: F16L33/04
Filed: 1926-07-26
Abstract: 266,642. Curtis, J. N. July 26, 1926. Addition to 257,898. Clips, band, for hose pipes and the like of the kind described in the parent Specification are provided with a sheetmetal liner between the wires of the clip and the pipe to permit use with small pipes and thin wires. The liner 7 is placed between the wires 3 of the clip and the pipe 4 and prevents the wires cutting the pipe when tightened. To avoid loose ends, the liner overlaps as shown in Fig. 2 and lugs 8 are provided at one end to be bent over the wires.
Patent GB-272764-A (GB)
Title: Improvements in pivoting adjustments for windscreens and like pivoted members
IPC: B60J1/04
Filed: 1926-11-17
Abstract: 272,764. Leo, H., (Assignee of Leo, H., Firm of). Nov. 17, 1926. Pivoting-adjustments for wind screens and like pivoted members comprise slidable rods 7 located in a tube 1 of the screen, each rod having a compression spring 9 located between a stop 8 and a member 10 secured to the end of the rod, the rods being operable by a handle 14 to compress the springs and move the clutch members 11 out of engagement. As shown, the member 10 is connected with the movable clutch element 11 through a slidable bolt 13 mounted in the side pivot, and the handle 14 is secured to a bolt 4 provided with side arms 5 that are connected with the ends of the rods 7. Normally, the springs 9 maintain the clutch members in engagement to secure the windscreen in an adjusted position. In modifications, the handle 14 operates the clutch elements against the action of the springs by means of a cam or a toothed wheel engaging racks.
Patent GB-218910-A (GB)
Title: Process and apparatus for removing odouriferous substances from oils and fats
IPC: C11B3/14
Filed: 1923-11-19
Abstract: 218,910. Bollmann, H. Nov. 19, 1923. Fats and fatty oils, purifying.-Odarous substances are removed from edible oils and fats, by passing the oil, preheated to 100-105‹ C., down a column 1 against a current of steam supplied at 120‹ C. from a pipe 10. The column is divided by partitions 2 - - 5 which have overflow openings 9 for passage of the steam, and are fitted with steam coils 8 connected in series. The spaces between the partitions are filled with packing material such as Raschig rings. Steam which condenses in the oil is removed by the coils 8 on each tray and a coil 13 in the base. The treated oil passes by a pipe 14 to a steam separator 15 from which it passes through a float valve 16 into an evacuated vessel 17 in which it is treated with low-pressure steam superheated to about 130‹ C. The oil is discharged through a cooler 18.
Patent GB-522308-A (GB)
Title: Improvements in and relating to screw propellers
IPC: B64C11/16
Filed: 1938-10-08
Abstract: 522,308. Screw propellers. TELFER, E. V. Oct. 8, 1938, No. 29211. [Class 114] A screw propeller has on the back or suction face of each blade a streamlined rib or ribs disposed near the boss over the trailing portion of the blade and substantially concentric with the propeller axis. The ribs 10, 11 are of a length to fall within the overlap of the blade by the leading edge of the following blade in the side view. The height of the main rib, which is nearest the boss, is about equal to the blade thickness. The ribs may be integral with the blades or attached thereto, and the surfaces of the propeller may be protected as by means of rubber vulcanizing.
Patent GB-187979-A (GB)
Title: Improvements in or relating to apparatus for distributing and measuring liquids
IPC: G01F11/06
Filed: 1922-10-26
Abstract: 187,979. Compagnie des Compteurs et Materiel d'Usines a Gaz. Oct. 26, 1921. [Convention date]. Void [Published under Sect. 91 of the Act]. Fixed-chamber apparatus for semi-liquids; varying quantity measured in.-Apparatus specially adapted for dealing with thick fluids comprises a pump b supplying fluid from a reservoir a through a four-way cock c into one end g of a cylindrical measuring-chamber f having a liquid-tight piston i which is moved by the fluid pressure so as to force the content of the cylinder out of the end k and through the cock c into a delivery pipe. As soon as the piston reaches a stop x the pump ceases to operate and the cock is turned to put the end k into communication with the pump so that fluid is delivered from the end g until the piston reaches a stop v which is adjustable to vary the quantity delivered. The four-way cock may be replaced by two interconnected three-way cocks, and several such measuring-devices may be connected in parallel.
Patent GB-445582-A (GB)
Title: Improvements in or relating to thermionic valve circuit arrangements
IPC: H03C1/62
Filed: 1934-10-12
Abstract: 445,582. Valve modulating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London, and TRUMP, E. H., Meadowsweet, Vicarage Road, Chelmsford. Oct. 12, 1934, No. 29312. [Class 40 (v)] A power-magnifying valve circuit comprises a means to supply high frequency voltages between the grid and cathode, a series resistance means to super impose modulating potentials and a resistance in the anode circuit arranged in the grid cathode circuit so that the operating grid bias is in part determined by the anode current and in part by the grid current. The Figure shows a circuit in which the resistances 7, 11 are associated with condensers 12, 13 to give circuits have a time constant long compared with the modulation period.
Patent GB-722302-A (GB)
Title: Improvement in and relating to electric communication systems
Inventor: HARRISON KENNETH WHITELEY
IPC: H04J1/14
Filed: 1952-11-20
Abstract: 722,302. Telephone transmission systems. TELEPHONE MANUFACTURING CO., Ltd. Sept. 25, 1953 [Nov. 20, 1952], No. 29357/52. Class 40 (4). In a suppressed carrier system in which the carrier is transmitted for the purpose of signalling, the signal detector is connected to the output of the receive demodulator and tuned to twice the carrier frequency. Transmission of the carrier may be effected either by unbalancing the transmit modulator or by injection on the line side of this modulator.
Patent GB-1481278-A (GB)
Title: Chisel assembly in a coal planing tool
IPC: E21C35/18
Filed: 1975-07-14
Abstract: 1481278 Mineral-mining cutter pick assemblies W VETTER 14 July 1975 [2 Aug 1974] 29425/75 Heading E1F A chisel assembly in a coal planing tool comprises a holder 16 provided with a pocket 12 adapted to receive a substantially equilateral triangular laminar chisel head 10 provided with three cutting edges each of hard metal at a respective apex of the triangular head, the chisel head being selectively engageable with the holder in any one of three positions in each of which a respectively different apex of the head is received in the pocket. Preferably each side of the triangular chisel head is provided with a recess 14 that engages with a tooth 15 on the holder to locate the head in the selected one of the three positions. The holder may be provided with a support member 19 for contacting a respective side of the head in each of its alternative positions. Locking means, e.g. a cotter 17 is provided for securing the head in the holder. The end face 20 of the holder may carry a plate member of wear resistant material.
Patent GB-771821-A (GB)
Title: Improvements in peeling machines
IPC: A47J17/18
Filed: 1955-10-18
Abstract: 771,821. Peeling machines. SOC. D'ETUDE ET D'EXPLOITATION CHIMIE ET MECANIQUE E. C. E. M. Oct. 18, 1955 [Oct. 25, 1954], No. 29701/55. Class 28(2) In peeling potatoes &c. by agitating them inside an abrasive cylinder by depending resilient abrasive fingers moved around inside the cylinder, the fingers 16, 17 are removably secured to blocks 12 secured to a top plate 1 carried and rotated by the rotary spindle A. The sides of a slot 2 form the drive from the rotary spindle A. Each metal finger 16, Fig. 3, carrying abrasive covering or discs 17 is secured by a removable staple 18 to one of the depending extensions 14 of a resilient block 12. Each block 12 is' mounted radially to the top plate 1 by being gripped between wires 7 of a clip, Fig. 5, the ends 6 of which are entered in slots in a boss la of the plate 1 and locked therein by a sliding ring 11, Fig. 6, so that a whole block 12 can be removed to replace any worn fingers.