baber/WOPTO huggingface dataset:
Patent GB-816549-A (GB)
Title: Wear plate assembly for jaw crusher
Inventor: RUMPEL HARVEY HENRY
IPC: B02C1/10
Filed: 1957-12-28
Abstract: 816,549. Jaw crushers. SMITH ENGINEERING WORKS. Dec. 28, 1957, No. 40235/57. Class 59 A crusher having a pair of relatively movable jaws mounted on a frame and co-operating therewith to form a crushing chamber is characterized in that each of the jaws facing the crushing chamber is provided with a sectional protective liner which comprises a medial die anchored to its supporting jaws and adjoined end dies, each pair of end dies being formed to positively interlock with the adjacent parts of the medial die, but being left free to expand and contract in relation thereto. The liners may be of manganese steel. As shown, the crusher comprises a fixed jaw 15 and a movable jaw 19, the jaw 15 being provided with corrugated medial and end liner dies 16, 17, 18 and the jaw 19 with corrugated medial and end liner dies 24, 25, 26, the end liner dies being interlocked with the medial liner dies by means of tongue and groove connections 37, 38, 40, 51 and 54. The medial dies are firmly secured to their respective jaws by means of bolts 41, 48 while the end dies are secured in position by means of deflectable bolts 42, 55, the bolts 42 passing through clearance holes 43 in upper and lower frame sections 11, 12 of the crusher and in the adjacent portions of the jaw 15. The dies 17, 18 are provided with rear pad portions 39 slidable along the jaw 15. The medial die 24 is provided with a rear positioning pad 45 co-operable with a central recess 46 in the jaw 19 and a series of laterally-spaced pads 47 (not shown) through which the bolts 48 pass. The upper and lower ends of the die 24 are provided with rear recesses 49 which slidably engage projections 50 formed integrally with the jaw 19. The dies 25, 26 are each provided with rear reaction pads 52 at their ends nearest the inlet and outlet portions 13, 14 of the crusher and at their opposite ends with rear recesses 53 slidably engaging the jaw projections 50. The dies 17, 18 are interchangeable with each other.
Patent GB-1281071-A (GB)
Title: Apparatus for measuring conductivity
Inventor: HENDERSON LEONARD L
IPC: G01N27/04
Filed: 1969-08-12
Abstract: 1281071 Measuring conductivity; bridge circuit L L HENDERSON 12 Aug 1969 40244/69 Headings G1N and G1U In apparatus for determining the conductivity of a fluid, an electrode assembly 12 immersed in the fluid 16 is connected to the gate of an F. E. T. 24 forming one arm of a resistance bridge, the bridge being balanced for a predetermined conductivity of the fluid. As shown, for measuring the moisture content of the fluid, the bridge is balanced by potentiometers 30-33, the wiper 34 of one of which 11 connected to "ground" forming the return circuit through the fluid to the electrode assembly. The operating point of the F. E. T. is set by a potentiometer 42 and in this manner a wide range of fluid conductivities may be determined Any fluctuations in the battery voltage may be periodically observed and compensated for by a double-pole, double throw switch and an adjustable resistor connected between the points S1 and B1, and an adjustable resistor connected between the points B1 and S2, Fig.2 (not shown). The apparatus has application to a dry cleaning machine in which the potentiometers 30-33 are set for variable dry cleaning fluid parameters such as temperature and soap concentration.
Patent GB-1458462-A (GB)
Title: Switch device with temperature-dependent actuating element
IPC: H01H37/04
Filed: 1974-09-16
Abstract: 1458462 Thermal switch BEHR-THOMSON DEHNSTOFFREGLER GmbH 16 Sept 1974 [27 Sept 1973 8 Nov 1973] 40247/74 Heading H1N A thermal switch assembly comprising a temperature dependant actuator 2, Fig. 1, and a contact unit 1 in a housing 14 is fixedly mounted in a tubular part 8 of a container for the fluid to be controlled and has a plug part 5 with an O-ring or like seal 9. The means for retaining the assembly in position may comprise one or more spring clips 11 engaged in recesses or grooves in the contact unit 1 and tubular part 8 and several forms of clips are described. Alternatively a circumferential lip (29) Fig. 7 (not shown) on the housing 14 may engage radial projections on the tubular part 8 where this is of resilient plastics material. An assembly retained by a bayonet joint is also described.
Patent GB-870587-A (GB)
Title: Thrust spoiler for a jet propulsion engine
IPC: F02K1/56
Filed: 1959-11-27
Abstract: 870,587. Deflecting propulsion jets on aircraft. GENERAL MOTORS CORPORATION. Nov. 27, 1959 [Nov. 28, 1958], No. 40369/59. Class 4. In a thrust-spoiler for a jet propulsion engine, wherein the jet nozzle is an annula duct which is closable by flaps attached to the outer wall of the duct, the tail part of the inner wall of the duct has normally covered thrust-spoiler vanes and is movable axially of the duct in the rearward direction to expose the vanes and to open an inlet in the inner wall upstream of the closure flaps which are then in closed position so that the gas of the propulsive jet can enter that inlet, flow within the inner wall, and emerge through the spoiler vanes downstream of the flaps. The propulsive gases flow through an annular duct 30 formed between an extension 24 of the engine casing and the well of an inner cone 28. Extension 24 carries a plurality of circumferentially overlapping flaps 26 each pivoted at 32 and formed with a cam track 36 to engage a pin 38 mounted on an annular shroud 40 movable by a jack 46 to swing the flaps 26 from the position of Fig. 1 to the position of Fig. 2 in which their trailing edges abut the outer wall of cone 28. The construction of cone 28 provides an annular cavity 74 formed aft of structure 1 between an inner wall 60, end wall 62 and an outer wall comprising a fixed part 97 and relatively movable parts 72 and 80. This associated structure is axially movable on rollers 55, carried by fixed cone structure 50, 52, by means of jacks 66. Wall 72 is apertured top and bottom for-sets of guide vanes 78 and it carries tracks 81 for roller assemblies 82 mounted on part 80 by means of circumferential channels 85. Welded to the forward channel 85 at each roller assembly is a rod 92 slidably mounted in an apertured flange 96 attached to wall part 97, the rod having a cross-pin 98 which can bear against flange 96 to limit rearward movement of the rod. In operation, jacks 46 and 66 are operated jointly to swing flaps 26 to the position of Fig. 2 and to move aft parts 60, 62, 72 and 78 of the cone 28. During this movement parts 72, 78 move relatively to part 80 which is subsequently also moved aft by the forward end of track 81 engaging the forward roller assembly 82, rearward movement of part 80 being limited by the engagement of cross pin 98 with flange 96. This places cavity 74 in communication with duct 30 through exposed apertures 79 so that the propulsive gases may be deflected by flaps 26 into the cavity 74 to emerge outwardly through vanes 78 in a forward direction.
Patent GB-1064689-A (GB)
Title: Carriage for the conveyance of goods, chiefly intended for supermarkets and the like
IPC: B62B3/18
Filed: 1964-10-06
Abstract: 1,064,689. Hand carts. KARL STEINER S.p.A. Oct. 6, 1964 [Oct. 10, 1963], No. 40760/64. Heading B7B. A shopping cart has a frame A comprising a U-shaped part 4 with castors 5 secured to the base and having its limbs secured to the base of an inverted U-shaped part 3 provided with castors 5 at the ends of the limbs. Adjustably secured to the limbs 3 by bolts 3<SP>1</SP> are channel uprights 6 which carry at their upper ends on pivots 6<SP>1</SP> a wire basket B which is supported at its forward end by the propelling handle and strut 13, 17. The side parts of the struts 13 are provided with headed pins constrained to slide in the channels 6 so that when the handle is raised in the direction f 1  the basket will pivot downwardly to enable it to nest with a similar cart. The basket has splayed sides to facilitate nesting.
Patent GB-1368369-A (GB)
Title: Anti-skid studs suitable for infatable vehicle tyres
IPC: B60C11/16
Filed: 1972-09-04
Abstract: 1368369 Tyre tread studs BROWN BOVERI & CIE AG 4 Sept 1972 [7 Sept 1971] 40976/72 Heading B7C A non-skid stud for a tyre comprises a member 1 of plastics, e.g. a thermoplastic material, having a bore 3 in which is received a tapered hard metal insert 2. The member includes a flange 7 for retaining the stud in the tyre tread, and the bore has a tapered portion 4 and a cylindrical portion 5 of a diameter less than the minimum diameter of the insert. The insert may have a greater angle of taper than the tapered bore portion 4, and, in use, extends from the member, the radially outer end of which is flush with the tread surface, by 1-1À5 mm. The insert projects into the bore by an amount equivalent to the tapered portion 4 (as shown), or alternatively by an amount equivalent to the length of the tapered portion less the length it projects from the bore. Figs. 2, 7 and 8 show different members. The stud is such that in use as wear of the tyre tread, the member and the insert takes place the amount the insert projects beyond the member will be substantially constant. The material of the member preferably has substantially the same wear resistance as the tyre tread.
Patent GB-1468811-A (GB)
Title: Apparatus for mixing and pumping cement grout
IPC: B28C5/08
Filed: 1973-08-31
Abstract: 1468811 Mixing cement grout THYSSEN (GREAT BRITAIN) Ltd 28 Aug 1974 [31 Aug 1973] 41160/73 Heading B1C [Also in Division B8]  Apparatus for mixing and pumping cement grout especially, for use in mixers comprises a hydraulically driven mixer 16 discharging at 30 to a hydraulically driven grout pump 32. The whole may be mounted, together with a power pack (not depicted) comprising an electric motor driving a hydraulic pump, on a sledge 10, 11, 12. The mixer has a rotatable axial shaft 15 carrying flexible paddles 18 and is fed with solid material from a hopper 22 (see also Figs. 2, 7 and 8 not shown, and Division B8) and a feeder 26 having paddles which may be driven by a chain 28 from the mixer shaft. Water is supplied by spray bars 29. The mixing trough extends round 270‹ as shown in Fig. 6 and has a detachable cover 17. The mixer may be operated at 50-75 rev/min.
Patent GB-1041558-A (GB)
Title: Control system for the heating medium of a combined hot water supply and space heating installation
Inventor: HUDSON NORMAN
IPC: G05D23/275
Filed: 1961-11-17
Abstract: 1,041,558. Control of heating systems. NORTH EASTERN GAS BOARD. Nov. 6, 1962 [Nov. 17, 1961], No. 41208/61. Heading H2H. A thermostatically-controlled fluid or electric heater is provided with a relay arranged to de-energize when the thermostat opens so that there is only one heating cycle. The arrangement is described in relation to a combined space heating and hot water system heated by gas, electricity, oil &c., and having a switch to provide normal thermostatic cycling during winter months and " one shot " heating during the summer. A cancellation switch may additionally be provided. A fan and additional thermostat may be incorporated into the system for use in a ducted air system, which fan may be energized independently during the summer for cooling.
Patent GB-1483572-A (GB)
Title: Automatic multipole electromagnetic transfer switches
IPC: H01H33/65
Filed: 1975-10-09
Abstract: 1483572 Electromagnetic switches AUTOMATIC SWITCH CO 9 Oct 1975 [29 Jan 1975] 41371/75 Heading H1N [Also in Division H2] A switch which when its coil 98 is pulsed transfers a load from a normal supply source to an emergency supply source has phase contact set 16 for connection of the normal supply terminals 22 to the load terminals 26, a phase contact set 17 for connection of the emergency supply terminals 24 to the load terminals 26, and a neutral make before break change-over contact arrangement 28, 31 arranged so that on switching the neutral contacts close first so that both neutral connections are made then the contact set 16 are opened, then the contact set 17 are closed and then the neutral of the normal source is disconnected. The movable contacts 19 of the set 16 are mounted on an insulator plate 51 secured between members 48, 50 which are pivoted at 49 and also have secured between them a second insulating plate 52 on whch the movable contacts 21 of the set 17 are mounted. When the operating coil 98 is pulsed a plunger armature 99 is pulled into the coil and by means of a link 100 and rotates a weight 101 about its pivot 102. The weight 101 has projecting pins ends 106 engaging in a slot 109 in member 50 and in a slot 108 in a similar pivoted member 73 having an arm 75 connected by a lost-motion bar 76 to the neutral contact assembly which has biasing springs 94. The inertia of the weight 101 carries it to the Fig. 14 position the contacts 32, 33 having closed first (Fig. 11, not shown) before contacts 18, 19 open (Fig. 12, not shown), then contacts 20, 21 close (Fig. 13, not shown) before the Fig. 14 position is reached with contacts 29, 30 open.
Patent GB-1015058-A (GB)
Title: Improvements in or relating to the manufacture of electrical devices having glass envelopes
Inventor: BREADNER ROBERT LEONARD
IPC: H01J5/24
Filed: 1962-11-01
Abstract: <PICT:1015058/C1/1> A method of manufacturing an electrical device, having a glass envelope of tubular form of which at least one end is closed by a glass base plate through which is sealed one or more electrical conductors which support an electrical component within the envelope, comprises sealing the assembled base-plate to the tube by supporting the glass tube vertically with the or an open end uppermost, placing the base-plate assembly in the required position upon the open end of the glass tube, placing upon the base-plate a thin mica washer the periphery of which overlies the periphery of the base-plate and applying direct local heat simultaneously to the whole of the junction between the end of the glass tube and the underside of the base-plate, and to the peripheral region of the upper surface of the mica washer so as to soften the glass in these regions and seal the base-plate assembly to the tube. A tubular envelope 1 already sealed by a top plate 2 is supported in a metal holder 3. The base-plate assembly 5 comprising pins 6 supporting a quartz crystal 7 is placed in position on the open end of tube 1.  A thin (10 thou.) mica washer 8 is placed on top of the base-plate. The pins are retained in their correct positions by a bridge piece 9.  A heating element 10 of tubular or plate-like form with a central aperture and of the same thickness as the tube walls is lowered to abut on to the mica washer, and a similar graphite heating element 12 shaped (13, 14) to accurately locate the tube wall and the base is placed in position adjacent the junction.  These two elements are energized simultaneously.  The whole operation is carried out in a vacuum, and heating is continued for 90 seconds.  The method may be readily applied to devices having envelopes comprising tubes of non-circular cross-section.
Patent GB-1534439-A (GB)
Title: Joints for joining construction elements
IPC: E02D5/52
Filed: 1976-10-07
Abstract: 1534439 Joints for construction elements V M LAINE & M LOUKOLA 7 Oct 1976 [7 Oct 1975 23 June 1976] 41627/76 Heading F2M A joint for joining two construction elements, such as a pair of concrete piles, comprises a joint member 3 which may be received in a socket 2 and secured therein by means of a wedge 5 extending through a transverse aperture in the socket 2 and joint member 3, the wedge being acted upon by a screw threaded member 6 which may be tightened by a torque wrench so that a desired amount of stress can be produced in the joint.
Patent GB-1178254-A (GB)
Title: Casting-Off Latch Needle Hand Tool.
Inventor: OGLE GEORGE BERNARD
IPC: D04B15/00
Filed: 1966-12-10
Abstract: 1,178,254. Knitting tool. G. B. OGLE. 11 Dec., 1967 [10 Dec., 1966; 13 Sept., 1967], Nos. 55436/66 and 41772/67. Heading D1C. To assist casting off of loops from the needles of a knitting machine a pivoted latch 8 cooperates with the hook 14 of a hand tool the hook having a projection 16 which has a concave surface cooperating with the hook of a knitting needle to enable a loop on the latter to be slid therefrom on to the shank of the hand tool whereafter a yarn laid in its hook can be drawn as a loop through the loop on the shank which is then cast off from the tool.
Patent GB-869762-A (GB)
Title: Laminated rubber tires
IPC: B60C1/00
Filed: 1958-12-30
Abstract: A rubber tyre (see Group VIII) comprises portions of butyl rubber and of high-unsaturation rubber bonded together by two interposed layers of blends of high-unsaturation rubber and brominated butyl rubber in different proportions.  The butyl rubber is a rubbery copolymer of 0,1% to 15% of a C4 to C10 conjugated multiolefine and 85% to 99,9% of a C4 to C8 iso-olefine, e.g. an isobutylene-isoprene copolymer. Brominated butyl rubber is a brominated derivative thereof containing at least 0,5% bromine, but not more than three atoms of bromine per molecule of multiolefine.  It may be made by the action on butyl rubber of molecular bromine, alkali metal bromites, sulphur bromides, oxygenated sulphur bromides, N-bromosuccinimide, alphabromoacetoacetanilide, tribromophenylbromide, N-bromoacetamide, beta-bromoethylphthalimide, or other brominating agents, preferably in solution in an inert solvent (examples given), or by mill-mixing a solid brominating agent with the solid copolymer.  Rubber compositions are described, containing: (a) smoked sheets, butadiene-styrene copolymer, carbon black, mineral oil, zinc oxide, sulphur, benzothiazyl disulphide, phenyl-betanaphthylamine and stearic acid; (b) smoked sheets, brominated butyl rubber, carbon black, hydrogenated rosin, zinc oxide, sulphur and diorthotolylguanidine; (c) butyl rubber, carbon black, mineral oil, zinc oxide, sulphur, tetramethylthiuram disulphide and mercaptobenzthiazole; (d) smoked sheets, brominated butyl rubber, polychloroprene, carbon black, hydrogenated rosin, zinc oxide, sulphur and diorthotolylguanidine; and (e) butyl rubber, carbon black, N : 4-dinitroso-N-methyl-aniline, zinc oxide, stearic acid, mineral oil, sulphur, tellurium diethyl dithiocarbamate and benzothiazyl disulphide.  Specification 714,542 is referred to.
Patent GB-1104460-A (GB)
Title: Improvements in or relating to a spring-type measuring head
Inventor: TSEITLIN YAKOV MIKHAILOVICH
IPC: G01B3/22
Filed: 1965-10-05
Abstract: 1,104,460. Determining shapes. LENINGRADSKII INSTRUMENTALNII ZAVOD. Oct. 5, 1965, No. 42145/65. Heading G1M. A measuring head comprises a sensing element in the form of a twisted spring band 6 connected with a reciprocating feeler rod 2 and carrying opposed indicating means 9 rotatable relative to an angle reading scale according to changes in the tension of the twisted spring band, and a counter of the pointer half-turns. The feeler rod 2 reciprocates on coming into contact with the measured surface, so varying the tension of the twisted spring thus moving the pointer. The feeler rod 2 is connected to the spring band 6 by a lever 4, the other end of the spring band 6 being connected to a resilient support 7. The counter of the halfturns illustrated Fig.1 (not shown) comprises a V-shaped flat spring 13 which moves across a scale as the feeler moves upwards to register the half-turns of the indicating means. The indicating means may be in the form of a pointer which is mounted on the twisted spring band at its mid-point or eccentrically. The indicating means may also be a mirror having two reflecting surfaces, rotation of which causes angular deflection of a beam of light over the scale.
Patent GB-956837-A (GB)
Title: Improvements in or relating to mechanical filters for low-frequencies
IPC: H03H9/05
Filed: 1962-11-08
Abstract: 956,837. Electromechanical filters. KOKUSAI DENKI KABUSHIKI KAISHA. Nov. 8, 1962 [Nov. 13, 1961; March 26, 1962], No. 42285/62. Heading H3U. A mechanical wave filter for low frequencies comprises at least three rectangular plate vibrators " a," " b," " c," each carrying at least one piezo-electric or electro-striction transducer 2, and mounted to form a combined body 1 of at least two U-shaped tuning forks. By adjusting the resonance frequency of each U-shaped tuning fork, a double-hump filter may be obtained. The filter may be mounted by the stud 4 in an elastic material, and has a phase shift # Fig. 6.
Patent GB-922835-A (GB)
Title: Method of operating blast furnaces
IPC: C21B5/00
Filed: 1960-12-08
Abstract: A method of operating a blast furnace comprises charging the furnace with alternate layers of coke having a grain size between 60 and 100 mm., and are intimately mixed with the usual additions and with coke of higher reactivity and smaller grain size, e.g. 6 to 60 mm., than that used in the coke layers.
Patent GB-1146751-A (GB)
Title: Power driven continuous cutting strip
IPC: B27B33/06
Filed: 1966-09-22
Abstract: 1,146,751. Sawing. McCULLOCH CORP. 22 Sept., 1966 [27 Sept., 1965], No. 42414/66. Heading B5L. A power driven continuous cutting strip comprises a continuous band 13, Figs. 1 and 5, for engagement with a driving and supporting means 11, 12 and longitudinally spaced cutting elements 37 extending outwardly from the band from opposite edges thereof in allochiral relationship. The band is supported for movement along the edge of a supporting bar 12 adjustably carried by an engine 10 having a wheel 11 for driving the band along the bar. The peripheral of the wheel is of reduced thickness and pins 18, Fig. 2, extend through the wheel and act as driving means for the strip. The strip consists of an endless band 31 and tangs 32 along opposite edges of the band are bent downwardly so as to extend over the edge of the bar 12 and the edge of the wheel 11 and be engaged by the driving pins 18. The cutting elements 37 are spaced alternately along the opposite edges of the band and are formed with a curved portion 38 which merges with a transverse curved portion 39, the leading edges of the portions being bevelled to provide cutting edges. A depth gauge 43 is disposed in front of each cutting element. In another embodiment the pins 18 are replaced by recesses in each side of the wheel for receiving the tangs. Each cutting element may have a flat transverse portion which merges with the curved portion. In a further embodiment, each cutting element consists of two straight portions in the shape of an L. In yet another embodiment, the cutting elements consist of blades 82, Fig. 10, welded or brazed to the surface of the band, the front faces of the blocks being curved to form cutting edges 78. The strip may be formed by die-stamping from a blank of flexible steel and joining the ends of the strip by welding or brazing, the tangs being bent downwardly and the cutting element bent upwardly, or in the case of the blocks welded or brazed to the strip. The cutting edges are formed by filing. The two faces of the blocks may be curved to permit the transverse cutting edges 78 to be ground by a whetting device of the engine 10. The cutting-elements extend transversely from their furthermost point from the band to at least the centre of the band.