baber/WOPTO huggingface dataset:
Patent GB-842237-A (GB)
Title: Method and apparatus for setting rivets
IPC: B21J15/02
Filed: 1958-08-14
Abstract: 842,237. Riveting; jointing by forging. HUCK MANUFACTURING CO. Aug. 14, 1958 [Sept. 3, 1957], No. 26131/58. Class 83 (4). [Also in Group XXV] A method for setting a rivet having a shank provided with a grooved portion extending on one side of aligned workpieces and a head extending on the other side of said workpieces comprises applying a radially inward force to a collar encompassing the shank to swage the collar into said grooved portion while applying a pulling force on the end of said shank opposite the head, the collar being caused to be elongated by the swaging force. The riveting gun 12 includes a housing 14 accommodating a piston 16 reciprocable by a fork member 22 pivoted within the gun handle 26. The fork member is actuated by inclined guides 32 and 34 which are moved towards or away from the fork-pivot 24 by hydraulic or other mechanism actuated by a trigger 28. The riveting mechanism 10 includes a barrel 36 provided with bores 46, 44 and 50 of different diameters. A collet 52 slidable in the bore 44 is slotted to form four elongated jaws or fingers 60, each jaw having an inclined outer surface 64 for engaging a complementary surface at the end of the barrel portion 42. The inner surface of each jaw has a knob 68 and a groove 66. The collet is adjustably connected to a plunger 74 attached to the piston 16 of the riveting gun. In operation, plates 82 and 84 are connected by a rivet 92 (Fig. 7) having a grooved shank surrounded by a collar 100. The collet is positioned about the collar with the collet abutting and pressed against the plate 84 and a spring 101 located within the collet holds the collar against the plate 84. On manipulation of the trigger of the gun the barrel 36 in effect approaches the plate 84 to move the jaws 60 inwardly to swage the collar on to the rivet shank and complete the riveting. The operation pulls the plates together and imparts a preloading to the rivet which increases its fatigue life and prevents any loosening of the collar. In a modification, the riveting mechanism includes a slotted collet 132 positioned within a sleeve 122 and guided and retained therein by a set-screw 150. The rivet is provided with a pull portion 164 which is gripped by the jaws of a known type of riveting-gun. In operation, the collar is swaged by radial movement of the jaws of the collet and the lengthening of the swaged collar imparts a tensile loading to the rivet.
Patent GB-169726-A (GB)
Title: Improved mop-head or holder for mop, duster, brush, cloth or the like
IPC: A47L13/46
Filed: 1921-10-03
Abstract: 169,726. Johnson, H. L. Oct. 4, 1920, [Convention date]. Pliers.-A holder for a mop, duster, brush, &c. comprises a pair of pivoted arms A provided with projections B' and sawedged or other holding-faces B constructed. to resemble the thumb and fingers of the human hand, the arms being adapted to grip the cleaning- material through the action of a spring C passing beneath or pivotally mounted on the pivotpin of the arms A. A handle D is mounted on the pivot-pin.
Patent GB-792420-A (GB)
Title: Improvements in modulating circuits for carrier frequency signal transmission systems
IPC: H03C1/58
Filed: 1955-09-13
Abstract: 792,420. Modulating systems. WESTERN ELECTRIC CO., Inc. Sept. 13, 1955 [Sept. 17, 1954], No. 26176/55. Class 40 (5). A carrier signalling system comprises a balanced modulator 11-14 connected as shown to an opposite pair of terminals of a bridge circuit 22, 23, 27, 28, carrier being fed to the modulator and also to the other opposite pair of terminals of the bridge, and an output comprising both sidebands and carrier being taken from across one impedance arm 27 of the bridge. Modulation frequency is thus excluded from the output without employing fitters and carrier is not transmitted back into the modulation input. The system may employ transistors. In a modification the junction of resistors 27, 28 is earthed and resistor 27 replaced by a resistance pad and output transformer. Also the resistor 25 may be shunted by a capacitor to provide relative phase control of the carrier inputs to the modulator and bridge respectively. A further input winding of transformer 15 may apply voice frequency ringing tones. Specifications 792,418 and 792,419 are referred to.
Patent GB-1081190-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: TAYLOR ANTHONY JAMES
IPC: G21C13/02
Filed: 1965-06-21
Abstract: 1,081,190. Reactors. BABCOCK & WILCOX Ltd. June 21, 1966 [June 21, 1965], No. 26228/65. Heading G6C. A nuclear reactor has the fuel elements included in the core arranged in a plurality of fuel element assemblies disposed with their longitudinal axes extending vertically, each of which is supported along a vertical side by means attaching that side to a supporting structure encircling the core. The invention is described with reference to an integral reactor comprising an hexagonal core composed of six wedge-shaped fuel element assemblies surrounded by six heat exchange tube banks. Core coolant is circulated by pumps up through the fuel element assemblies and out through openings in a cylindrical core supporting structure to continue downwardly over the heat exchange tube banks, after which the coolant passes upwardly between concentric partitions surrounding the core to the pumps from which it is returned downwardly between the outer partition and the reactor pressure vessel to the underside of the core. Each fuel element assembly 39 (Fig. 9) comprises a triangular casing containing fuel pins 41 and control rods 42 all of which are equally spaced and triangularly pitched from one another by spacer grids 43 to 46 and a bottom plate 47. The control rods 42 are slidable along tubes 51 flared at their upper ends and plugged at their lower ends by spigots 52 secured to the bottom plate 47. The fuel element assemblies 39 are supported within the core supporting structure by sleeves 60, 61 which engage locating pins mounted on the inner wall of the supporting structure. The sleeves 60, 61 are provided on brackets 53, 54, one being an extension of the bottom plate 47 and the other an extension of the lowermost of a series of plates 63 to 66 by means of which guide tubes 62 for the control rods 42 are spaced from one another. The fuel element assemblies 39 are clamped to ledges mounted on the inner wall of the core supporting structure by means of bolts 55. Each bolt 55 is slidable within a bore of a beam 78 and has a tool engaging end 76 provided by a hollow sphere 80 with the corners 81 cut away. The beam 78 is attached to a supporting frame for the fuel element assembly 39, which frame has a lifting lug 92 secured to it for use in inserting or removing the fuel element assembly. When this is in position, a special tool having a cruciform slot in its end is located over the end 76 of the bolt 55 and used to screw it into a corresponding threaded bore in the ledge. The control rods 42 of each assembly are pivotally connected to beams 56, 57 to facilitate their being supported as two clusters from two lifting devices.
Patent GB-182046-A (GB)
Title: Improvements in apparatus for delivering regular quantities of granular or pulverized material
IPC: G01G11/08
Filed: 1921-10-05
Abstract: 182,046. Davis, F. W. Oct. 5, 1921. Apparatus fitted to conveyers.-In apparatus for delivering granular or pulverized material and of the type in which the material is supplied to a rotating table near its centre, and removed therefrom by a scraper or knife, the material is delivered from the table to a conveyer which passes over a scale-pan the movements of which control the rate of delivery of the material from the table. The position of the scale-pan may adjust the position of the scraper, or determine the rate of delivery of the material to the table. As shown in Fig. 1, the belt conveyer E passes over a driven pulley F and guide-pulleys f, and the scale-pan G over which the belt passes before it reaches the pulley F is provided with anti-friction rollers g and suspended from a beam H provided with an adjustable weight h. A rod I pivoted to a crank on the pulley F is connected by a link J to the beam H, and racks K on the upper and lower sides of the rod I are adapted to mesh with pinions L arranged one above and the other below the rod. The pinions have free-wheel arrangements so that they are driven in only one direction by the reciprocations of the rod. A chain N passing round sprocket-wheels M driven through the free-wheel arrangements drives a sprocket O connected through worm gear P to the spindle c of the scraper C. If too much or too little material be delivered, the pan G falls or rises causing the upper or lower rack respectively to mesh with its pinion, thereby moving the chain N and adjusting the position of the scraper C. Or the end of the rod I may be bifurcated and the arms provided with pawls k, Fig. 3, adapted when the rod is raised or lowered to mesh with one or the other of two ratchets l fast with a single sprocket M around which the chain N passes. To prevent the racks or pawls from coming out of engagement with the pinions or ratchets a thin plate Q, Fig. 4, may be mounted on the rod I so that when the rod is raised or lowered it will pass above or beneath a hinged plate R and be prevented from dropping or rising until the plate Q has cleared the plate R. In the modification shown in Fig. 5, the shoot B is fitted with a telescopic extension b which is raised or lowered by a lever S rocked about its pivot s by a nut T working on a screw-thread on the spindle c of the scraper.
Patent GB-1075941-A (GB)
Title: Method and means for preventing cavitation in hydraulic pumps
IPC: F04C14/02
Filed: 1964-06-25
Abstract: 1, 075, 941. Reciprocating pumps; rotary pumps. AMERICAN BRAKE SHOE CO. June 25, 1964 [July 5, 1963], No. 26344/64. Headings F1A and F1F. In a rotating cylinder block axial piston pump or a rotary vane pump having axially directed inlet ports to the cylinders or inter-vane spaces, respectively, a rotator member is located between the pump inlet and the inlet ports to impart an angular velocity to the liquid entering the inlet ports which is substantially equal to that of the inlet ports. In the embodiment illustrated, liquid flowing through the inlet 20 to the cylinders 33 passes through a radial vane rotor 50, keyed to the pump drive shaft 25. The liquid flowing through the rotor 50 is directed to the outlet (74), Fig. 4 (not shown), of the rotor housing 11, which communicates with the cylinders 33 via the inlet port 35 in the port 27, by means of ramps (68, 68a) in the rotor housing. In a further embodiment, Figs. 8 to 14 (not shown), liquid flowing through the inlet (94) to the chambers of a vane pump (12) passes through a radial vane rotor (84), keyed to an extension (130) of the pump driving shaft (99). The pump comprises a rotor (98), splined to the driving shaft, having radial vanes (102) which are urged outwardly into sealing contact with a cam ring (97) which includes two diametrically opposed sealing portions disposed at equal radii from the axis of the driving shaft and two diametrically opposed transfer portions of equal but larger radii. The sealing and transfer portions are interconnected by ramps. The inlet to the chambers of the pump is through ports (120, 121 and 110, 111, 114, 115) in port plates (95 and 96) on opposite sides of the rotor (98). The pump delivers, via ports (123, 124, 125, 126) in one port plate (96) and similarly disposed ports in the second port plate (95), to an annular peripheral groove (122) in the second port plate.
Patent GB-369871-A (GB)
Title: Improvements in, or relating to, road, lawn, and the like rolling devices
IPC: E01C19/26
Filed: 1931-09-22
Abstract: 369,871. Land, garden, and road rollers ; bearings. BARTLETT, B. G., 1 Cartmell Terrace, Brinkburn Road,Darling- ton. Sept. 22, 1931, No. 26459. [Class 6 (i).] A roller adapted for free rotation is provided with external roller bearings, the centres of the rollers of which are adjacent its inner periphery, either the outer or the inner races of the bearings being secured to the ends of the roller and the others rigidly secured to the ends of a supporting yoke, fork, or like member. The inner bearing races c are shown secured on axial extensions b of the roller a and the outer races d in yokes e at the ends of the main supporting york f, the outer diameters of the outer races being slightly less than that of the roller a. The spindles i of the bearing rollers g are mounted in cage rings h. Several series of bearing rollers g may be disposed side by side. Grooves or ribs o, p on the races engage with ribs or grooves on the rollers g. The inner races c may be carried by the fork f and the outer races d by the roller a. The sections of sectional rollers a may be retained in alignment by an axial connecting shaft.
Patent GB-647063-A (GB)
Title: Improvements in or relating to phenolic condensation products and process of preparing same
IPC: C07C37/20
Filed: 1947-10-01
Abstract: A resinous product is prepared by the condensation of an aldehyde or ketone with a phenol in an acidic medium in the presence of a mercapto-substituted aliphatic carboxylic acid or a mercaptol or mercaptal thereof.  The mercapto acids specified include mercaptoacetic and thiolactic acids, and particularly b -mercaptopropionic acids.  Phenols mentioned include cresols, phenol, chlorophenols and nitrophenols; carbonyl compounds specified include formaldehyde, acetone, methylethylketone, cyclohexanone, benzaldehyde, acetophenone, acetonylacetone and acetaldehyde.  In an example (10), phenol is treated with formaldehyde under the above conditions to give a resinous product.ALSO:A phenolic condensation product is prepared by condensing a phenol with an aldehyde or ketone in an acidic medium in the presence of a mercapto-substituted aliphatic carboxylic acid or mercaptol or mercaptal thereof. Mercapto acids specified are mercaptoacetic acid, thiolactic acid, a -, b - and g -mercaptobutyric acids, a  : b  - dimercaptobutyric acid, mercapto-substituted myristic, oleic, adipic, succinic and aconitic acids, and particularly b -mercapto-propronic acid; salts, esters, or other hydrolysable derivatives may also be used.  The acidic medium may be produced by any acid substance, e.g. hydrogen chloride, with or without calcium chloride; excess phenol, e.g. 4-8 mols., is preferably used.  The percentage of mercapto-acid may be as high as 10 per cent, but is preferably 0.01 to 0.5 mols.  An inert solvent may be used.  Increased pressure may be employed at a temperature, e.g. of 20-50 DEG  C. Phenols mentioned include cresols, a - and b -naphthol, o-chlorophenol and other halogenated phenols, and nitrophenols. Ketones mentioned include methyl ethyl ketone, mesityl oxide, acetonylacetone, acetophenone, cyclohexanone, and aldehydes are represented, for examples, by acetaldehyde and benzaldehyde. Ketones are the preferred reactants.  In the examples, (1-7) 2 : 2-bis-(41-hydroxyphenyl) - propane is prepared from phenol and acetone in acidic solution in the presence of mercapto-acetic and propionic acids, their salts and esters, and of acetone di-(b -carboxyethyl) - mercaptol; (8) o - cresol is used in place of phenol; (9) methyl ethyl ketone is used in place of acetone, and (10) phenol is treated with formaldehyde to give bis-p-hydroxyphenylmethane.
Patent GB-1042077-A (GB)
Title: Inductor
Inventor: ROBINSON DUNCAN DOVE
IPC: H01F5/00
Filed: 1964-06-26
Abstract: 1,042,077. Inductors. STANDARD TELEPHONES & CABLES Ltd. June 26, 1964, No. 26501/64. Heading HIT. An inductor has the distance apart of its inducting turns arranged to produce a predetermined configuration of its magnetic field by varying the width of the insulation 2 on one side of the conducting strip or wire 1. The insulation may be polypropylene moulded around the conductor and subsequently cut to conform with a template. The insulation need not enclose the conductor. The coil and/or the formes may be wetted with a solvent of the insulating material or an adhesive. A movable high permeability core may be used.
Patent GB-1244772-A (GB)
Title: Discharge valve for a pressurized dispensing container
IPC: B65D83/14
Filed: 1969-05-23
Abstract: 1,244,772. Dispensing liquids by gaseous pressure. STERLING DRUG Inc. May 23, 1969 [June 3, 1968], No.26576/69. Heading F1R. A valve for controlling the discharge of material under pressure from a container comprises a housing 14 having a valve stem 24 slidable therein and a spring 32; when the stem 24 is depressed the orifice 54 and the passage 52 thus place the interior of the container in communication with the atmosphere and the spring returns the valve stem 24 and thus the orifice to the interior of the housing and a seal is established between the stem and the orifice 48 formed in the end-face of the housing. The housing is provided with a flange 18 to seal the mouth of the container and a ferrule is placed over the housing to sealingly engage the valve to the container.
Patent GB-1506261-A (GB)
Title: Communications systems
IPC: H03M7/00
Filed: 1975-06-23
Abstract: 1506261 P.C.M. to delta modulation conversion and vice versa NORTH ELECTRIC CO 23 June 1975 [24 June 1974] 26580/75 Heading H3H In a communication system using companded pulse code modulation (CPCM) and linear delta modulation (LDM), CPCM signals are converted to LDM and then to analogue by means shown in Fig. 2. Incoming 8-bit CPCM signals at 8kHz sample rate are converted to 14-bit linear PCM signals and each sample is given n times (e.g. twice) by a speed converter 38. The resulting signals (e.g. 16 kHz sample rate) are converted at 36 into 2's complement format, details Fig. 7, and fed to a digital filter 39 which for n = 2 comprises a shift register 330 and a full adder 332 with delayed feedback for a carry signal to generate 15-bit words representing the sum of the two most recent 16 kHz words. The 15-bit words are truncated to 12 bits and the sign bit is inverted at 350 to convert to offset binary format signals which are supplied to the digital comparator 42 of a digital delta modulator 43. The comparator 42 and reversible counter 46 are strobed several times per 16 kHz input word to provide quick homing on start-up. The integrator 50 is reset to zero whenever the counter 46 is in its half-full state, representing in offset binary zero output level. Logic is provided to prevent over- and underflow of counter 46. Further details are given with reference to Figs. 6, 8, 8A and 8B (not shown). A corresponding system for converting analogue signals to LDM to CPCM is described, Fig. 1, details Figs. 3, 4, 5 and 5A (not shown).
Patent GB-670682-A (GB)
Title: Improvements in magnetic couplings
IPC: H02K5/128
Filed: 1949-10-17
Abstract: 670,682. Magnetic clutches. HOWARD, G. J. E. Sept. 28, 1950 [Oct. 17, 1949], No. 26623/49. Class 35. A magnetic coupling comprises a driving element supporting a ring of horse-shoe permanent magnets 3 and a driven element carrying a second ring of horse-shoe permanent magnets 4, the two rings being separated by an air gap in which a sealing member 8 is interposed. To avoid eddy current losses in the sealing member 8 the latter is preferably made of high resistance material.
Patent GB-933712-A (GB)
Title: Alloys of columbium and tantalum
IPC: C22C27/02
Filed: 1959-08-04
Abstract: An alloy consists of 15 to 75% Ta, 17 to 75% Nb, with one or more of the metals Zr, W, Mo and Ti within the ranges 0.245 to 6% Zr, 0.8 to 32% W, 0.4 to 10% Mo and 0.1 to 1.5% Ti.
Patent GB-844014-A (GB)
Title: Packaging machine
IPC: B65B9/02
Filed: 1958-08-19
Abstract: 844,014. Packaging-machines. ROTO WRAP MACHINE CORPORATION. Aug. 19, 1958 [Aug. 20, 1957], No. 26634/58. Class 94(1). A machine for packaging articles such as slabs of cheese between webs of film and in the presence of inert gas comprises a chamber in which articles are scrubbed by the gas to remove air, the articles being enclosed between upper and lower webs which are sealed about them to form the packages. The articles 14 are fed by a belt 16 on to a conveyer 18 comprising spaced strands 20 to give a minimum of contact with the articles. The conveyer 18 carries them beneath a flexible roller 22, which makes a gas tight seal with the strands and one of the supporting grooved rollers 24, into a chamber 32. Inert gas is sprayed on to the articles from above and below the conveyer strands by perforated pipes 34, the pressure in the chamber 32 being above atmospheric, and the articles pass beneath a further flexible roller 22 into a chamber 36. Gas is supplied to the chamber 36 by pipes 38, Fig. 2 (not shown), and maintains it at a higher pressure than that in the chamber 32. Webs 42 44 are led through slits into a former 40 and the articles are fed between them for exit from the former enclosed in a finned tube. The side edges or fins are heat sealed by opposed pairs of rollers 68 and pressure is applied to the seals by further rollers 70. The tube is sealed transversely between the articles by members 72 having a combined reciprocating and rotary motion, and passes between gas expelling soft rollers 74. Cutters flanked by pressure pads 78 and movable with the tube during cutting, sever the individual packages.
Patent GB-339259-A (GB)
Title: Improvements in or relating to weft-replenishing mechanism for looms
IPC: D03D45/20
Filed: 1929-09-03
Abstract: 339,259. Whittaker, J., and Whittaker Automatic Looms, Ltd., Sept. 3, 1929. Shuttles, positioning for weft-replenishing; shuttles, changing bobbins and the like in, automatically.-On exhaustion of the weft a bowl s' on the sley engages a cam h<5> on the lever H and moves the same about its vertical pivot i to position the shuttle, the end of the spent weft being cut by knives o, n pivoted to the bifurcated end h<4> of the lever H. If the part h<1> of the lever H which, carries the knives o, n strikes the side of the shuttle it is pushed back on the other part h' and moves a catch e<2> from behind a stud carrier e and the stud coupling the hammer c<1> to a cam d on the hammer shaft c<2> is withdrawn by a spring, thus rendering the ejector hammer inoperative. As shown in Fig. 1, the hammer c<1> and cam d are normally coupled together, but as shown in Fig. 8, the parts are only coupled together when the lever H is moved laterally. The knives o, n are closed when a pin q on the sley rides on the top of a cam plate p carried by the knives, and are opened by a pin q' which engages the bottom end p<1> of the cam plate p. This pin g' is carried by an arm q<2> on a shaft r which is rotated by a hunter on the sley when the weft feelers &c. t, t<4> indicate exhaustion of the weft. The shaft r also carries arms r<1>, r<4>. The arm r' when moved allows the cam h<5> carried by the lever L to fall into the path of the bowl s<1> or may cause the bowl s' to be lifted into line with the cam h<5>, while the arm r<4> moves the cam d round on its shaft until its beak is in position to be operated on by the bunter f on the sley. The ejector hammer c' is in two parts, the part 2 lying in a recess in the back of the part 1 and yielding when it engages and holds the cop next to the one being delivered to the shuttle. Specifications 15336/10 and 258,992 are referred to.
Patent GB-1529522-A (GB)
Title: Method and means for cavity mining minerals from a subsurface deposit
IPC: E21B43/29
Filed: 1976-06-28
Abstract: 1529522 Jet mining of minerals SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 27 June 1977 [28 June 1976] 26804/76 Heading E1F In a method of mining minerals from a subsurface deposit by hydraulically jetting particles of the mineral out of the deposit and collecting the particles in the lower part of the mined out cavity in the deposit for removal therefrom by pumping means oversized particles that could clog the entrance to the pumping means are crushed at or near said entrance. The crushing is by auxiliary hydraulic jets as shown at 22 of the jetting head, or by a screw secured on the outside of the then rotated head, or by an impacting sleeve disposed concentrically about the jetting head to have a piston cylinder relationship therewith so that it can be raised from and allowed to fall on to an anvil collar secured to the jetting head.