baber/WOPTO huggingface dataset:
Patent GB-1255866-A (GB)
Title: Spindle assemblies
Inventor: MASON PETER ALAN
IPC: B24B41/04
Filed: 1969-08-13
Abstract: 1,255,866. Grinding; spindles. WICKMAN MACHINE TOOL SALES Ltd. 13 Aug., 1970 [13 Aug., 1969], No. 40489/69. Headings B3B and B3D. A spindle assembly for a tool, such as a grinding wheel 12, milling cutter or the like, in which the spindle and tool are replaceable as a unit in a support structure 11, comprises a driving spindle 14 which is adapted at one end for connection to a motor 16 and at the opposite end to mount the tool and is journalled in hydrostatic bearings 19, 20 in a sleeve 24 having a fluid inlet 27 to feed passages to the bearings, a coupling member 34 securable to the motor and to the sleeve, and a combined clamping means and hydraulic connector 36 on the coupling member whereby clamping of the sleeve in the coupling member takes place simultaneously with hydraulic connection between the sleeve fluid inlet 27 and fluid entry passage means 41 in the connector. The support structure 11 is adjustable on a vertical slide 10 and is formed with a bore for receiving the sleeve which is located at one end by a flange 33. The hydrostatic bearings 19, 20 are located adjacent the ends of the sleeves and engage frusto-conical portions 17, 18 on the spindle. Each bearing is formed with galleries 23 for receiving fluid from passages 25, 27 in the sleeve. Passage 27 is stepped and houses a member 28 having an opening 30 in its end wall-which can be closed by a spring-urged valve member 31. The coupling member 34 is secured by bolts to the motor 16, which may be hydraulic and has a splined connection 15 with the spindle. The clamping member 36 is secured by bolts to the coupling member and formed with passages 41 which communicate with the opening in the member 28, the fluid passing through the opening to the passages 25, 27 and bearings. The clamping member bears by means of spring washers on the coupling member and has a spigot 38 engaging the member 28. When the bolts holding the clamping member are slackened, the sleeve can be withdrawn from the coupling member for replacement. In other embodiments, a gear or belt connection is provided between the motor and spindle.
Patent GB-1262173-A (GB)
Title: Tuning device for radio frequency apparatus
IPC: H03J1/06
Filed: 1969-08-13
Abstract: 1,262,173. Push button tuners. INTERNATIONAL STANDARD ELECTRIC CORP. 13 Aug., 1969, No. 40559/69. Heading H3Q. [Also in Division H1] In a tuning device for radio apparatus such as a TV receiver, in which a resonant circuit is tuned by at least one voltagevariable capacitance semi-conductor element, a plurality of knobs 2 each carry a push button 5, whose operation connects output terminals to a voltage control arrangement associated with the knob and pushbutton, rotation of any of the knobs over a predetermined range operates via a respective wheel 3 a slider 12<SP>1</SP> of a potentiometer which has a gapped annular resistive track 8 and rotation of the knob beyond the range operates a switch 4 so as to enable the voltage applied to the potentiometer to be changed. Rotation of knob 2 is coupled by gearing 21, 20 to rotate the slider 12. At each 180 degree turn of the potentiometer shaft 17 projections 32 co-operate with slots 31 in a Geneva mechanism 22 to rotate a movable contact 23 of a waveband switch. Each waveband switch 4 has three fixed contacts 24 connected via tags 26 to different voltages so that on rotating the potentiometer shaft 17 through the 180 or 360 degrees positions the movable contact 23 moves from one fixed contact 24 to the next. The fixed contacts 24 and circuit connections are formed as a printed circuit. Each potentiometer 3 has the resistive track 8 deposited on an insulating plate 11. Each waveband switch 4 and potentiometer 3 is connected to a common switch output conductor 30 and common potentiometer output conductor 16 by switch contacts springs 28, 15 actuated when a push button 5 is pressed, by ramps on either side of a slot 36 in the push button. The push button 5, knob 2, cam wheel 17 and Geneva mechanism 22 may be of plastics, metal or both these materials.
Patent GB-1107389-A (GB)
Title: Improvements in or relating to bar feeding mechanism for lathes and the like
IPC: B23B13/00
Filed: 1964-10-06
Abstract: 1,107,389. Machine tool details. A. C. MERCER. 6 Oct., 1965 [6 Oct., 1964], No. 40650/64. Heading B3B. A stock bar feeding mechanism for a lathe or the like comprises a stock bar supporting tube 11, aligned with a headstook (20) (Figs. 4 and 5, not shown) and having an outer end portion or extension 10 for accommodating a plunger 27 for feeding the stock bar 21 into the said headstock, the said extension 10 being displaceable laterally relative to the tube 11 to allow an increased length of stock bar to be used in the feeding mechanism. The mechanism is pivotable about a pillar 14 so that the front end of the tube 11 may be moved out of alignment with the headstock 20 so that the stock-bar 21 may be loaded into the tube 11 from either end. An endless chain is connected by an arm extending through a slot in the tubes 10, 11 to the plunger 27 and feeds the stock bar into the headstock and a manual feed (31), (32) is provided for initially feeding the stock bar to the chuck (33) in the headstock (20). The extension 10 may be displaced by a toggle linkage (17), (18), (Figs. 2 and 3, not shown) or by pneumatic or hydraulic means with remote control cable mechanism, lever and link mechanism or valve mechanism. A pneumatic ram having a piston-rod connected to the chain may be used in place of the manual feed (31), (32). The extension 10 may be formed as an attachment to an existing stock bar feeding mechanism.
Patent GB-1067886-A (GB)
Title: Three piece blind fastener
IPC: F16B19/10
Filed: 1965-09-27
Abstract: 1,067,886. Rivets. R. M. VAUGHN. Sept. 27, 1965, No.40932/65. Heading F2H. A blind rivet comprises a bolt (10), Fig. 1, not shown, a nut (11) and a sleeve (12). The rivet, with the sleeve assembled between the bolt head and the nut, is passed through aligned holes (13) and (14) in the members to be joined, and the bolt is rotated by means of the end flats (19) to cause the sleeve to expand over the nut, Fig. 3, not shown. The sleeve is tapered each end and is caused to frictionally engage the threads of the bolt adjacent its head, and the hole (14) at (27), and also to lock the nut on to the threads of the bolt. The bolt may be sheared off at (20), leaving flats (21) for torque testing. The cavity (29) may be filled with aluminium filler.
Patent GB-1524222-A (GB)
Title: Method of and apparatus for protecting the nozzle of a plasma torch
IPC: B23K10/00
Filed: 1975-10-07
Abstract: 1524222 Detecting double arcs in plasma torches MANSFELD KOMBINAT WILHELM PIECK VEB 7 Oct 1975 [8 Oct 1974] 40999/75 Heading H2K In a plasma torch having a nozzle 2 for shaping the arc between a cathode 1 and a workpiece 6, an auxiliary alternating voltage (9, 10) is applied between the nozzle and the arc and if the resultant alternating nozzle current becomes excessive, indicating incipient breakdown of the gas layer insulating the nozzle from the arc, the main arc current is reduced or interrupted (13). Capacitors 12 connected between the A.C. source 9, 10 and both the cathode 1 and workpiece 6 effectively couple the A.C. source to the arc without interfering with the normal, direct, arc current.
Patent GB-1017623-A (GB)
Title: Power tool improvements
IPC: B23B45/02
Filed: 1962-10-30
Abstract: 1,017,623. Machine tool details. ROCKWELL MANUFACTURING CO. Oct. 30, 1962 [Oct. 31, 1961], No. 41062/62. Headings B3B and B3C. [Also in Divisions B5 and H2] A power tool comprising a casing-less electric motor 50, Figs. 1-5 (not shown) connected to a tool, fans 66, 68 on the rotor shaft, aluminium end bells 58, 60 fixed in butted relation to the motor stator 52 having bearing support means 92, 98 for the rotor, axially, and radially directed sets of air circulation passages 112, 121 and baffle means 146 for directing the air through the bell across the stator and outwardly from the bell. The motor 50 is incorporated in a drilling machine 47, Figs. 6-10 (not shown) and is pivotally mounted in an aluminium split housing 172, 174, so as to drive a stepped pulley 464 carried thereby which incorporates a fan 492, the pulley being connected by a belt 462 to a further stepped pulley 446 carried on the drill spindle 284. The machine comprises a column 160 fixed to a base 162, and a work-table 164 is adjustably clamped on the column by a lever 166. Spindle 284 is carried in a quill 288 which is fed by a rack-and-pinion assembly 300, 342, against a torsion-spring 388. The pinion can be disengaged from the rack by axially withdrawing shaft 340, Fig. 23 (not shown), and a depth of cut gauge 408 is provided. The quill can be locked in the required position by a lever 524.
Patent GB-1480140-A (GB)
Title: Perforation of assemblies of layers of fibre reinforced structures
IPC: B26F1/26
Filed: 1975-10-03
Abstract: 1480140 Laminates; perforating COTTON SILK & MAN-MADE FIBRES RESEARCH ASSOCIATION 3 Oct 1975 [3 Oct 1974] 41397/76 Divided out of 1480139 Headings B5A and B5N An assembly of two or more superposed layers of fibre-reinforced resin material is perforated by forming an aperture through the assembly transverse to the layers of fibres by local application of heat and pressure and cooling the material around the aperture to stabilize the aperture shape. The aperture may be formed by a heated needle and the material cooled by inserting an elongate member into the aperture. In the drawings sheet 23 of the assembled layers is clamped in brackets 16 against support member 21 provided with parallel rows of apertures 22, movement of cross-members 13, 14 along rods 11 having notches 12 causing the sheet to move beneath needle 25 provided with low voltage winding 37 connected via cables 38 to an electric source to heat the needle. The needle head is slidable via sleeves 19a on guide rods 17, 18 provided with notches 20. When air cylinder 26 is actuated the first part of the piston stroke drives downwards slide 28 carrying magazine 33 and clamping plate 32 and when the clamping plate is down on the sheet 23, spring 30 controlling needle 25 is compressed by continued downward movement of the piston and the heated needle 25 passes through an aperture in the clamping plate and perforates sheet 23. At the same time a cold or unheated needle 31 fixed on the underside of clamping plate 32 is inserted into a perforation formed on the previous down stroke of needle 25 to stabilize the aperture shape. A reinforcing element may also be inserted into a previously cooled aperture, the reinforcing element being ejected from magazine 33 by plunger 45 actuated by air cylinder 36. In the assembly the resin matrix may be thermoplastic, e.g. a polysulphone, or thermosetting, e.g. a bisphenol-A with isophorone-diamine hardener, and the reinforcing fibres may be of cotton, linen, glass, wool, steel, boron nitride, carbon or nylon. The reinforcing elements may comprise fibres or fibre bundles coated with a thermoplastic resin or thermosetting resin, e.g. an epoxy resin or bisphenol-A with isophorone-diamine hardener.
Patent GB-888188-A (GB)
Title: Improvements in the preparation of alkali metal dichromate
IPC: C01G37/14
Filed: 1959-12-07
Abstract: <PICT:0888188/III/1> Alkali metal dichromate is prepared by passing carbon dioxide into an aqueous solution of alkali metal chromate and dichromate in which the concentration of CrO3 as dichromate is higher than the concentration of CrO3 as monochromate, and at a rate of at least twice the rate at which the carbon dioxide is absorbed. p  A solution of chromate, e.g. sodium chromate, fed continuously through a line 2 mixes with a solution of dichromate flowing continuously through a line 4, and passes by line 6 to the top of a tower 8 where it is contacted countercurrently with carbon dioxide entering through a line 10.  The carbon dioxide is fed at a rate more than twice, preferably four times, that at which it absorbed and unabsorbed gas, is recycled by a line 12, make-up gas entering at 14.  Sodium dichromate solution passes to a filter 18, where precipitated sodium bicarbonate is removed, and then sodium dichromate is recovered from the solution.  Some of the solution passes to an evaporator 38 where it is concentrated before being mixed with fresh sodium chromate solution.  Potassium chromate also may be prepared.  Specification 882,320 is referred to.
Patent GB-932435-A (GB)
Title: Stabilized organopolysiloxane composition
IPC: C08K5/098
Filed: 1960-12-02
Abstract: A heat-transfer, hydraulic or lubricating liquid comprises a liquid alkylchlorophenylpolysiloxane which is stabilized with (1) from 0,5 to 10 parts (by weight) per 100 parts of the siloxane of an iron salt stabilizer, as described in Specification 932,434, and with (2) from 0,1 to 1,0% (by weight) of mineral spirits having a boiling point of at least 200 DEG C. or a fused ring polycyclic aromatic hydrocarbon of at least three rings having a melting point no higher than 200 DEG C., a boiling point of at least 200 DEG C. and a room temperature solubility greater than 0,05% by weight in the liquid siloxane. Aromatic compounds specified are 1,11-binaphthyl, 1,2-benzanthracene, fluoranthrene, benzo(a)pyrene, pyrene, phenanthrene and acenaphthene. Examples are given.  Specification 650,800 also is referred to.ALSO:A heat-transfer, hydraulic or lubricating liquid comprises a liquid alkylchlorophenylpolysiloxane which is stabilized with (i) from 0,5 to 10 parts (by weight) per 100 parts of the siloxane of an iron salt stabilizer prepared by adding an iron carboxylate to a lower alkylchlorophenyl polysiloxane liquid, bubbling air through the resulting mixture while heating at an elevated temperature and filtering off the precipitate which forms and using the filtrate, and with (2) from 0,1 to 1,0% (by wt.) of mineral spirits having a boiling point of at least 200 DEG C. or a fused ring polycyclic aromatic hydrocarbon of at least three rings having a melting point no higher than 200 DEG C., a boiling point of at least 200 DEG C. and a room temperature solubility greater than 0,05% by weight in the liquid siloxane.  Aromatic compounds specified are 1,11-binaphthyl, 1,2-benzanthracene, p  fluoranthene, benzoapyrene, pyrene, phenanthrene and acenaphthene.  Examples are given.  Specifications 650,800 and 932,434 are referred to.
Patent GB-1477429-A (GB)
Title: Character printing system
IPC: B41J5/30
Filed: 1975-10-10
Abstract: 1477429 Controlling printers INTERNATIONAL BUSINESS MACHINES CORP 10 Oct 1975 [11 Nov 1974] 41579/75 Heading G4H In printing, data from a computer is assembled into lines in a buffer 70, the data for each line including command data for selecting one of four translate tables 72, 170, 172, 174 for translating character code bytes in that line into graphic code bytes and means are provided for merging successive lines, as they are assembled in a page buffer 78, whereby a single line of the final print may include characters derived from more than one of the translate tables. Lines not to be merged are directed to different line stores in the buffer 78, lines to be merged are directed to the same line store. If a line already in a line store being used for merging and a subsequent line to be merged both contain a blank in a given position, the resulting merged line also contains a blank in that position. If either line contains a character and the other a blank in that position, the merged line contains that character in that position. If both lines contain a character in that position, the merged line retains that character which was already in the line store and, if the character in the subsequent line is different, an error signal is emitted. In the preferred arrangement, the graphic code bytes from the translate tables 72, 170, 172, 174 are compressed at 76 by dropping repetitions of like characters before assembly into pages and decompressed at 81. Minor modifications of pages may be introduced at 82 before the coded data bytes are fed to line buffers 83, 84, used alternately, to address character generator modules 74, of which there are 64 for each of four different fonts, each font being associated with a respective one of the translate tables 72, 170, 172, 174. Each character is built up in 24 horizontal "slices", each represented by two bytes containing 9 modulation bits, for left and right halves respectively. A register (144) receives the "half-slices" in succession, feeds each in turn through a serializer (146) to a modulator (136), which modulates a laser beam (132) swept across an electrographic print drum (142).
Patent GB-953915-A (GB)
Title: Fuel injection system
Inventor: CLARKE FREDRICK ARTHUR
IPC: F02D9/00
Filed: 1959-12-07
Abstract: 953,915. Fuel injection systems. F. A. CLARKE, and T. BROOKE. March 7, 1961 [Dec. 7, 1959], No. 41582/59. Heading FIB. A fuel injection system comprises a pump in communication with a source of fuel means connecting the pump to the actuating mechanism of the inlet valve or to the inlet valve whereby the pump is operated in response to the opening of the inlet valve to eject fuel into the airstream passing through the inlet valve or into the combustion space of the engine and means to meter the quantity of fuel ejected by the pump. As shown upon actuation of each diaphragm 6 by movement of the pushrod and valve rocker to open the inlet valve fuel in the pump chamber 3 is forced into the balance pipe 10 and is then distributed between the fuel conduit 11 and nozzle 12 connected thereto and the spill-off conduit 13 according to the setting of the control valve 15. If the control valve 15 is partly open some fuel will flow along the conduit 11 and some along the spill-off conduit 13. In this manner the quantity of fuel injected into the inlet manifolds is controlled .The control valve 15 is responsive to the air pressure in the inlet duct the chamber 21 being in communication with the air inlet duct on the inlet side of a butterfly control valve and the chamber 30 being in communication with the air inlet duct on the engine side of the butterfly valve. On opening of the butterfly valve the bobbin 19 is moved towards the end 17 of the valve housing resulting in fuel being forced through the pipe line 22 into the air inlet duct. In a modification the fuel supply conduit may be coupled to only one of the pump chambers 3 of each pair and the spill-off conduits 13 may be coupled to the other pump chambers of each pair rather than to the balance pipes 10, the two spill-off conduits 13 being joined into a single main spill-off conduit provided with a control valve.
Patent GB-1127927-A (GB)
Title: 3-(substituted phenyl) pyrrole derivatives and the preparation thereof
IPC: C12P17/10
Filed: 1965-09-30
Abstract: 1,127,927. Pyrroles. FUJISAWA PHARMACEUTICAL CO. Ltd. 30 Sept., 1965 [12 Oct., 1964; 22 Oct., 1964; 2 Feb., 1965], No. 41623/65. Heading C2C. Compounds of the formula (wherein X is H, halogen, NO 2  or C 1-6  alkoxy; Y is halogen, NO 2  or C 1-6  alkoxy; R<SP>1</SP> is H, C 1-6  alkyl or esterified carboxyl; R<SP>2</SP> is H or C 1-6  alkyl; and R<SP>3</SP> is H or halogen; and at least one of R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> is H), which excluding 3-(2- nitro - 3 - chloro - phenyl) - 4 - chloro - pyrrole, are novel, are prepared by decarboxylation, with heating, of corresponding 3-phenyl-pyrroles containing at least one free or esterified carboxyl group in the 2-, 4- and 5-positions. The decarboxylation may be effected in the presence of an acid or base, and if it is effected in the presence of, for example, aqueous sodium hydroxide, esterified carboxyl groups are hydrolysed and subsequently removed. In 2,5-dicarboxylic acids, decarboxylation occurs first at the 5-position. Other groups readily hydrolysable to carboxyl groups, e.g. trihalomethyl, may also be present in the starting materials.
Patent GB-902984-A (GB)
Title: Apparatus for feeding rod-like articles
IPC: A24C5/32
Filed: 1959-12-08
Abstract: 902,984. Discharging cigarettes; filter rods. KORBER,K. Dec. 8,1959 [Dec. 23, 1958], No. 41682/59. Class 78 (1). Cigarette filter rods in magazine 1 are agitated by reciprocating bottom 1A and are fed into shoot 3 by rotating rolls 2, 4. From shoot 3 the filter rods are discharged singly into the grooves of drum 14 by lugs 9 on rotating feed roll 108, the filter rods being released from the shoot 3 to the feed roll under the control of pivoted stop 107. The end fingers of stop 107 work in cam grooves 111 formed in the feed roll which permit the stop to fall to release a filter rod as a lug approaches. Specifications 839,427 and 865,624 are referred to.
Patent GB-981746-A (GB)
Title: Cable latching device
IPC: E21B41/10
Filed: 1962-11-05
Abstract: 981,746. Wells &c. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Nov. 5, 1962 [Nov. 6, 1961], No. 41812/62. Heading E1F. [Also in Division B8] Apparatus for latching a cable to a base element having a latching shoulder formed thereon comprises a body 36, latching means 46, 47 mounted on the body for lateral extension therefrom, a rod 48 mounted in the body, a portion 49 of the rod bearing against the latching means to hold them in their extended position, means 55 for securing the cable 32 to the rod, means 70 fixing the rod to the body, and a reduced part 59 of the rod having a tensile strength less than that of the cable. The latch means are pivoted and forced outwardly by a spring 61 to engage slots 70, 71 in a tube 21 of an underwater wellhead. On upward tension being applied to the cable the latch means are first prevented from pivoting downwardly by the portion, but when the tension is increased to fracture the part the rod moves relatively to the body and the latch means pivot and permit the body to be withdrawn from the tube. To permit re-use of the apparatus the fracture rod may be replaced by a complete rod. In a modification the latches engage the underside of an internal flange in the tube. Specification 948,322 is referred to.
Patent GB-1023508-A (GB)
Title: Improvements in x-y recorders
Inventor: KNIGHT DOUGLAS FRANK
IPC: G01D9/40
Filed: 1963-10-24
Abstract: 1,023,508. Recording apparatus. W. & T. AVERY Ltd. Oct. 23, 1964 [Oct. 24, 1963], No. 41930/63. Heading G1J. The invention is applicable to an X-Y recorder with a servomotor responsive to a control circuit to drive recording paper longitudinally in accordance with a first variable and another servomotor responsive to a control circuit to drive a pen laterally over the paper in accordance with a second variable such as the recorder described in Specification 1,023,507 and comprises a switch in series with a resistance attenuator connected in parallel with the primary windings of two transformers whose secondary windings are disposed one in each of the control circuits whereby the pen can be reciprocated relative to the paper to mark an event as shown. The circuit of each primary winding includes a reversible and a cut-out switch whereby the direction of reciprocation can be selected to give marks 25, 27, 28, 29 or 30 as appropriate, particularly to avoid making a mark that would make a small angle with the plotted curve. The switch may be manually operated upon the occurrence of a physical event or it may be mechanically operated under the control of a timing circuit to mark time intervals.