baber/WOPTO huggingface dataset:
Patent GB-578791-A (GB)
Title: Improvements in piezoelectric crystal devices
IPC: H04R17/00
Filed: 1944-06-13
Abstract: 578,791. Piezo - electric crystals. WESTERN ELECTRIC CO., Inc. June 13, 1944, No. 11331. Convention date, March 4, 1943. [Class 40 (v)] A crystal device comprises a pair of + 5‹ X cut quartz plates bonded together in major face to face relation and adapted to vibrate in flexure, the length and thickness of the plates being in accordance with the flexural mode frequency of the device, and the plates being supported and electrical connections being made to electrodes on the outside major faces of the plates substantially at the nodes of motion thereof so that a thickness direction electric field is applied to the plates. Figs. 1 and 2 show a compound element 1 adapted for bending movement comprising two plates 2, 3 cut from either a right-handed or left-handed quartz with its major faces perpendicular to the X-axis and its length dimension rotated 5‹ relative to the Y-axis. The plates are coated with silver and bonded together with silver solder, and electrode coatings 4 and 5 are applied to the outer faces, to which are soldered spring wire leads 7 which also serve for supporting the element. No leads are connected to the bonding material 10. The crystal bends about nodal lines 6 which are perpendicular to the length dimension and about .224 of the length from each end. The leads 7 are attached on the nodal lines. With the above orientation, and with the ratio of width to length in the range .2 to .35, the element has a very low temperature coefficient of frequency. If the two plates are cut one from a left-handed crystal and one from a right-handed crystal, the nodal lines make an angle of 11 degrees with the perpendicular to the length dimension. Fig. 6 shows.an arrangement in which a lead 8 is connected to the bonding 10, and leads 7 connected to the outer face electrodes are connected together to form the second lead 9. With this electrode arrangement, the oblique nodal line occurs when the plates are cut from the same handed quartz. If desired, either or both electrodes may be divided longitudinally to provide a pair of coupled elements. The elements may be mounted in an envelope which is evacuated or filled with an inert gas, and the envelope may be placed in a container filled with lambs' wool. Specification 544,834 and U.S.A. Specifications 1,860,529, 2,259,317 and 2,275,122 are referred to.
Patent GB-217384-A (GB)
Title: Improvements in ships' boat disengaging gear
IPC: B63B23/58
Filed: 1923-04-27
Abstract: 217,384. Hunt, C. April 27, 1923. Hooks, safety and slip.-The hook 10 which engages the ring 12 of a boat-lowering tackle is mounted on a pin 11 carried by the bracket 3, and has an extension 13 to which is hinged the toggle-lever 15 having a nose 16 which normally rests on a shoulder 17 on the bracket 3 and so takes the weight off the pivot pin 11. The fore- and-aft toggle-levers are simultaneously withdrawn from their abutments to release the boat by operating a central control-lever 30 mounted together with a duplex-grooved drum 24 on a bracket 25. Cables 26 - - 29 secured to the drum pass round drums 23 mounted on the brackets and are attached to levers 29 hinged to the lower extremities of the levers.
Patent GB-1457302-A (GB)
Title: Maximum-speed signalling device for motor vehicles
IPC: G01P1/10
Filed: 1974-03-14
Abstract: 1457302 Overspeed alarm devices SCHICK & CIE 14 March 1974 [21 March 1973 4 March 1974] 11530/74 Heading G1N A pick-up coil 1, Fig. 2, is mounted on the casing 19 of an eddy-current, drag-cup speedometer whereby the rotating magnet 12, coupled to a vehicle transmission system by cable 14, induces a pulse train in the coil 1, whose frequency is compared with a reference value set by slide 11 to operate an alarm lamp 8, or an audible alarm, at a predetermined angular speed. The pick-up coil may consist of two coaxial windings 48, 49, Fig. 4, connected in series opposition, whereby local flux changes due to the rotating speedometer magnet produce a differential output from the pick-up, but remote flux changes induce the same voltages in windings 48, 49 and produce no output voltage. In a modified circuit Fig. 3, (not shown), three different reference speeds are selectable by pushbutton switches.
Patent GB-1310574-A (GB)
Title: White porcelain body
IPC: C04B35/20
Filed: 1970-03-10
Abstract: 1310574 Porcelain; glazing composition NIPPON TOKI KK 10 March 1970 [10 March 1969] 11541/70 Headings C1J and C1M A porcelain body is made by mixing (a) plastic clay with (b) a mineralizing agent, e.g. zinc oxide, lithium fluoride, barium carbonate, calcium carbonate or zirconium oxide, and (c) a primary ingredient which is, or is capable of producing, a synthetic silicate and is capable of undergoing vitrification on firing, e.g. talc or a mixture of silica and alkaline earth metal oxide to form a plastic mass, of which at least 45 wt. per cent comprises the primary ingredient and at least 80 wt. per cent consists of particles with diameter less than 10 microns. The plastic mass is fixed to a biscuit, glazed and sintered at 1240 to 1350‹ C. Feldspar may also be incorporated in the plastic mass. The glaze comprises in wt. per cent based on dry wt.: SiO 2  65-75, Al 2 O 3  10-20, CaO, MgO or compound thereof 4-8, K 2 O, Na 2 O or a compound thereof 5-8.
Patent GB-467758-A (GB)
Title: Improvements relating to the lids or covers of electric accumulators
IPC: H01M50/179
Filed: 1936-04-23
Abstract: 467,758. Batteries. ALKLUM STORAGE BATTERIES, Ltd., and BERG, C. J. April 23, 1936, No. 11574. [Class 53] The cover of a twocell accumulator consists of a metal casting having two depending posts e, f on its under surface to which the electrodes of opposite polarity in the two cells are connected thus joining the cells in series. Threaded apertures are provided for vent plugs and electrolyte level indicating pins d, and two ribs i are provided to fit the mouths of the cells which are of D shape to form a cylindrical exterior. The terminals, one of which is shown in Fig. 4, are provided with two parallel flat surfaces A and they engage in correspondingly shaped openings in the cover to prevent turning when the nuts are being tightened. The cover is held down by a ring m which may be formed with a left-handed thread.
Patent GB-865112-A (GB)
Title: Improvements in or relating to boilers fired with pulverised fuel
IPC: F23C3/00
Filed: 1957-04-09
Abstract: 865,112. Pulverized fuel fired boiler furnaces. KOHLENSCHEIDUNGS-G.m.b.H. April 9, 1957 [Feb. 16, 1957], No. 11624/57. Class 51 (1). [Also in Group XIII] In a pulverized fuel fired tube lined boiler furnace comprising a tangentially fired combustion chamber 1, Fig. 1, a gas outlet channel 3 and a radiation chamber 2, the horizontal cross - sections of the chambers and the channel are approximately elliptical. The fuel and combustion air are blown into the combustion chamber through respective nozzles 27, 28, Fig. 2, additional air being supplied through nozzles 29. The chamber has a molten slag outlet 30 and, in operation, slag particles are centrifuged against the chamber walls, the rate of particle separation from the gases being increased, if necessary, by the use of sound generators which may be incorporated in the nozzles. The chamber 1 may be of circular cross-section and the ratio of the major axis to the minor axis of the horizontal cross-section of the channel 3 may equal, or be greater than, the similar ratio of the combustion chamber. The horizontal crosssection of the radiation chamber 2 may either remain unchanged up to the boiler roof or be of rectangular section in the upper part.
Patent GB-233144-A (GB)
Title: Improvements in strainers
IPC: A47G19/16
Filed: 1924-05-12
Abstract: 233,144. Suckling, J. May 12, 1924. Sieves.-The bowl 5 of a tea-strainer is formed with a rim 3 which rests on the upper surface of the flat metal handle 1. By spinning, swaging, or by the aid of a block of resilient material 10 and two dies 8, 11, the upper part of the bowl is upset to engage the underside of the handle to connect the bowl and handle rigidly together.
Patent GB-804746-A (GB)
Title: Improvements relating to sausage filling and linking machines
Inventor: WETTER JOHN
IPC: A22C11/02
Filed: 1957-04-10
Abstract: 804,746. Sausage filling. WETTER & CO., Ltd., J. C. April 10, 1957, No. 11745/57. Class 28 (2). Sausage meat is forced from a container through its port a and the port c of a rotated sleeve valve C<SP>1</SP>, C<SP>2</SP> when the ports register, to pass the meat into the sleeve valve and behind a piston when it has been withdrawn in timed relation. When the piston E is advanced it forces this portion of meat through an off-centre port 2 in the sleeve end and through an inclined passage in the nozzle block D<SP>1</SP> such arrangement eliminating right-angle bends in the meat passages. The nozzle G is then rotated by gearing to twist and neck each sausage. The forward end C<SP>1</SP> of the rotated sleeve is withdrawable for cleaning without disturbing its rotational drive at the back end C<SP>1</SP> to which it is coupled by interengaging dogs 3. On replacement it is held up to the dogs by the nozzle block D<SP>1</SP> which is pressed against it by the pressure of a retaining plate 4, Fig. 3, adjusted against the outer end of D<SP>1</SP> by studs 5 and 8.
Patent GB-494268-A (GB)
Title: Improvements in and relating to coin-freed prepayment mechanism
IPC: G07F1/02
Filed: 1937-04-24
Abstract: 494,268. Coin - freed apparatus. BRITISH ELECTRIC METERS, Ltd., and BROWN, R. T. April 24, 1937, No. 11809. [Class 27] Fraud, preventing.-A device for preventing fraudulent actuation of coin-freed mechanism by a wire inserted through the coin slot comprises a hand operated rotary cylindrical coin-receiving member e, Fig. 3, mounted in a casing a having entrance and exit slots k, m respectively, which cannot be simultaneously in register with a through coin-receiving slot f in the drum e. A bracket h secured to the drum passes through a slot g in the casing and has secured to it a shield i formed with an upstanding lip j. A spring q normally holds the drum with the bracket h up against one end of the slot g so that the shield covers the entrance slot k. In use, the slot k is uncovered by bringing the coin into contact with the lip and pressing back the shield, so turning the drum until the bracket h engages the other end of the slot g. The slot f is then in register with the slot k and the coin can be inserted. The spring g returns the drum and the coin slides out through the slot m to pass to the freeing mechanism of the apparatus.
Patent GB-183569-A (GB)
Title: Improvements in bottom discharge buckets and the like
IPC: B65D90/62
Filed: 1921-04-25
Abstract: 183,569. Provay, G. A. P. April 25, 1921. Skips.-Relates to bottom-discharge buckets of the type in which the body and bottom are moved apart and closed through the agency of a single suspending-rope. When the load is being transported the hooked arms 25, 26 are engaged under the shoulders of the head 16 of the sliding member 13, and the load is then carried by the draw-bar 18, the hooked arms 25, 26, the sliding member 13, the pin 15 and the suspension-rod 8, which is attached to the bottom. When the full bucket has been lowered on to the dump, the rollers 36, 37 force the longer arms 27, 28 of the levers, pivoted at 24, towards each other, thereby moving the hooked arms apart until they disengage the head 16, whereupon the sliding member 13 falls down the squared upper portion 11 of the suspension-rod on to the buffer spring 12. On reversing the motion of the crane rope the draw-bar is drawn upwards until its bifurcated end engages with the bottom of the guide 20, and on further upward movement the sides 1 of the bucket are lifted off the bottom 4, thus discharging the load. On lowering the bucket again at the loading point, the body is lowered on to the bottom and, on paying out the crane rope, the weight of the attached parts cause the hooked arms to move apart sufficiently to pass round the head of the sliding member, whereupon they re-engage the shoulders on the head through the action of the springs 29. On taking in the crane rope the longer arms of the levers raise the respective rollers about the pivot of their supporting- brackets 34, 35 against the action of the springs 38, 39 which return the rollers to their normal positions as the levers approach their upper position. If it is desired to work under water, the automatic releasing and re-engaging means are enclosed by a water-tight casing and glands are provided for the draw-bar and suspension-rod.
Patent GB-550439-A (GB)
Title: Improvements in or relating to roof structures
IPC: E04B7/08
Filed: 1941-09-16
Abstract: 550,439. Arched structures. DREWERY, D. Sept. 16, 1941, No. 11874. [Class 20 (iv)] Hollow tiles or the like 8 are preferably arranged with their cavities at right angles to the springer beams 2 ; their sides and ends are enclosed in concrete which penetrates to some distance into the cavities. Light packing material in the middle of each cavity limits the extent of penetration. The outer surface of the structure may be screeded over or otherwise finished. The springer beams 2 are mounted on brick or concrete pillars, reinforced with rods 7, connected by ties 6, and formed with gutters 5.
Patent GB-474237-A (GB)
Title: Improvements in and relating to the production of active carbons from coal
IPC: C01B32/336
Filed: 1936-04-27
Abstract: Active carbon is obtained by subjecting dull hard coals, or durains, rich in plant remains which possess slight to medium caking power but insufficient to develop a plastic condition at the temperature of carbonization, to carbonization at temperatures below 600 DEG  C., preferably between 450 and 500 DEG  C., followed by activation with steam at temperatures up to 1000 DEG  C., until its weight is considerably reduced, e.g. by 70 to 80 per cent.  Such coal preserves its original form during carbonization.  Coals of high caking power are suitably treated before carbonization, e.g. by oxidation with hot gases or agents such as ferric chloride or by extraction with solvents.  The coals are preferably treated in sized lumps, e.g. from \ba1/4\be inch to 1\ba1/4\be inch, but they may be powdered and briquetted.
Patent GB-270721-A (GB)
Title: Means for securing radiators of automobile vehicles
IPC: B60K11/04
Filed: 1927-05-04
Abstract: 270,721. Soc. Anon. des Automobiles Imperia, and Couchard, A. May 4, 1926, [Convention date]. Radiafors, mounting.-The radiator is supported on a cross member 2 of the chassis by a spring pivotal connection 6, 7, 8 and is connected with a shell 1 by a resilient collar 9 at the filling opening. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a resilient connection at each side. ' This subject-matter does not, appear in the Specification as accepted.
Patent GB-747451-A (GB)
Title: Improvements in processing natural and/or synthetic rubber
IPC: C08K3/22
Filed: 1954-04-26
Abstract: In order to produce a vulcanized product of low torsional hysteresis and high electrical resistivity a mixture of natural rubber and/or a butadiene-styrene copolymer, and zinc, magnesium, calcium, strontium, or barium peroxide, or potassium persulphate is heat treated at a temperature of at least 275 DEG  F., the mixture being masticated either during or after the heat treatment, and subsequently vulcanizing and other desired ingredients are incorporated, and the mixture is vulcanized.  Preferably a mixture of at least 40 parts carbon black, 100 parts natural rubber or butadiene-styrene copolymer, and 0.3 to 3 parts zinc peroxide are masticated at a temperature of 350 DEG  to 450 DEG  F.  The resulting material is sheeted and heat treated at 275 DEG  to 325 DEG  F. without mastication, and then milled, mixed with vulcanizing and other desired ingredients, and vulcanized.  U.S.A. Specification 2,118,601 is referred to.ALSO:In order to produce a vulcanized product of low torsional hysteresis and high electrical resistivity, a mixture of natural rubber and/or a butadiene-styrene copolymer, and zinc, magnesium, calcium, strontium, or barium peroxide, or potassium persulphate is heat treated at a temperature of at least 275 DEG  F., the mixture being masticated either during or after the heat treatment, and subsequently incorporating the vulcanizing and other desired ingredients, and vulcanizing.  Preferably a mixture of at least 40 parts carbon black, 100 parts natural rubber or butadiene-styrene copolymer, and 0.3 to 3 parts zinc peroxide are masticated at a temperature of 350 DEG  to 450 DEG F.  The resulting material is sheeted and heat treated at 275 DEG  to 325 DEG F. without mastication, and then milled, mixed with vulcanizing and other desired ingredients and vulcanized.  U.S.A. Specification 2,118,601 is referred to.
Patent GB-492154-A (GB)
Title: Improvements in pistons for hydraulic shock absorbers or the like differential pressure operated damping means
IPC: F16F9/28
Filed: 1938-04-21
Abstract: 492,154. Hydraulic shock-absorbers. ARMSTRONG, F. G. G. April 21, 1938, No. 11936. [Class 108 (iii)] A piston unit for hy draulic shock - absorber! or the like differential pressure operated damp ing-means comprises a recuperating valve 2( housed in an axial bore 22, 23 in a thickened part of the end wall be tween and to one side of the axis of opposite holes 25 for the gudgeor pin. Inclined passages 29 lead to the underside of the valve which is pressed onto its seat by a spring 27 adjustable by a solid plug 28. The plug is formed with slots 30 adapted to be engaged by a locking- pin 31.
Patent GB-246361-A (GB)
Title: Improved process for causing deposition of aqueous mineral suspensions
IPC: C02F1/52
Filed: 1925-05-07
Abstract: 246,361. Traube, I. May 7, 1925. Purifying liquid.-A process for causing or hastening the deposition of aqueous mineral suspensions or slimes consists in adding to the suspension an extract of a plant such as Carraghen moss or Iceland moss. The deposition of suspensions of galena, heavy spar, or the like may be hastened by means of an extract made by boiling Carraghen moss with water. In some cases there may be further added a small proportion of a salt or electrolyte, particularly a sulphate or carbonate of an alkaline earth metal.
Patent GB-514056-A (GB)
Title: Improvements in or relating to the manufacture of acetals
Filed: 1938-04-21
Abstract: 514,056. Mercury dihydroxyfluoborate &c. DU PONT DE NEMOURS & CO., E. I. April 21, 1938, No. 12038. Convention date, April 21, 1937. [Class 1 (iii)] [Also in Group IV] Mercury salts -are formed by dissolving mercuric oxide in dihydroxyfluoboric acid or its addition compound with boron fluoride. Specification 463,545 is referred to.
Patent GB-358588-A (GB)
Title: An improvement in the construction of lift cages
IPC: B66B11/02
Filed: 1930-10-07
Abstract: 358,588. Panel work. RAXWORTHY, R. E. and POTTER RAX GATE CO., Ltd., Wilton Works, Shepperton Road, Islington, London. Oct. 7, 1930, No. 12051. [Class 20 (iv).] Lift cages formed of panelwork construction comprising hollow drawn metal sections and connecting sheets have the parts connected together by cover strips and sections of corresponding width, and screws passing through these parts into blocks. The cage is formed of a framework of tubular metal sections 2 to which the panel sheets 6 are secured by cover strips 10 and screws 11. The sheets 6, Fig. 3, are gripped between the cover strips 10 and tubular sections 2 by means of screws 11 screwed into blocks 7. The cover strips and sections are right-angled at the corners. The roof has right-angled flanges bolted to horizontal sections at the sides. The flooring has an angled frame to which cover strips are secured, the strips being also secured to the floor. Specifications 8249/09, [Class 20 (iv), Floors &c.], 3547/12, [Class 20 (ii), Buildings and structures, Miscellaneous accessories &c.], 15061/15, 177,917, [both in Class 52 (iv), Upholstery &c.], 260,507, 268,436, and 280,627, [all in Class 20 (iv), Floors &c.], are referred to.
Patent GB-411653-A (GB)
Title: Improvements in and relating to photo-electric relay apparatus
IPC: H01J40/14
Filed: 1933-04-25
Abstract: 411,653. Valve amplifying circuits. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Cockrell, W. D. ; 1, Rugby Road, Schenectady, New York, U.S.A.) April 25, 1933, No. 12071. Convention date, April 28, 1932. [Class 40 (v).] A photo-electric cell 10, supplied with alternating current and feeding an amplifier 6, has the capacity between its connecting leads 14, 15 substantially eliminated, as by the provision of an earthed casing 27 to the lead 14. The capacity between the lead 15, connected to the grid 20, and earth, is supplemented by a condenser 16 so that the total capacity to earth of the lead 15 may be at an optimum valve. The valve of the condenser 16 may be varied with the length of the leads 14, 15. The valve 6 is supplied with an alternating voltage on its plate and its grid is biassed by connections 23, 25 to a resistance 24 across the alternating supply to the cell. The leads 14, 15 are covered by an earthed metal armour 28 for mechanical protection.
Patent GB-1165286-A (GB)
Title: Oligomerisation Process
Inventor: HYDE THOMAS GERALD
IPC: C10M145/14
Filed: 1967-03-15
Abstract: 1,165,286. Functional fluids. GEIGY (U.K.) Ltd. 14 March, 1968 [15 March, 1967], No. 12103/67. Heading C5F. [Also in Division C2] Oligomers, containing one or more methyl carboxylate groupings, are used as functional fluids such as hydraulic fluids or synthetic lubricants, or as components of such fluids, and are prepared by heating butadiene and/or isoprene with methyl methacrylate in the presence of a ruthenium catalyst and, as solvent, an aliphatic alcohol containing from one to six carbon atoms.
Patent GB-527874-A (GB)
Title: Improvements in or relating to magnetic dust cores
IPC: H01F1/16
Filed: 1939-04-22
Abstract: 527,874. Inductances. STANDARD TELEPHONES & CABLES, Ltd., and BUCKLEY, S. E. April 22, 1939, No. 12130. Addition to 483,919. [Class 38 (ii)] In a magnetic core comprising a number of elements 1 formed of compressed magnetic dust and separated by non- magnetic spacers formed by a shell 3, the latter is made of a material of such expansion . coefficient in relation to the temperature - permeability coefficient of the magnetic elements that the complete core has a predetermined temperature-permeability coefficient. Thus the latter may be made zero or even of such negative value as to compensate for the positive temperature coefficient of a condenser with which an inductive winding on the core 'is associated.
Patent GB-129146-A (GB)
Title: Improvements relating to Screwing Apparatus.
Inventor: WILLIAMS EDWARD
IPC: B23G5/12
Filed: 1918-07-25
Abstract: 129,146. Williams, E. July 25, 1918. Screwing dies and die-heads.-A self-opening die-head has the dies operated by inner and outer cam-rings e, f rotatable on a body c which is mounted in a head b so as to have limited longitudinal motion therein. This motion withdraws a projection m on the outer cam-ring from contact with a stop p in the head, and allows the cam-rings to be rotated by springs r to withdraw the dies. The springs are mounted with their axes in practically straight lines in cups o in the head, and the stop p has two contacting edges r for roughing and finishing cuts and is rotatably and slidably mounted in the head so that either edge can be brought into position. Furthermore, it is adjustable as a whole in a slot t by a screw s for various sizes of work-pieces. A stop w, in conjunction with one projection m on the cam-ring, limits the movement of retraction of the dies.