baber/WOPTO huggingface dataset:
Patent GB-1034249-A (GB)
Title: Device for electrically exciting piezo-electric or similar elements
IPC: H03K3/335
Filed: 1964-10-21
Abstract: 1,034,249. Transistor generating circuits. INSTITUT DE RECHERCHES DE LA SIDERURGIE FRANCAISE. Oct. 21, 1964 [Oct. 24, 1963], No. 42840/64. Heading H3T. A piezo-electric ultrasonic generator or analogous oscillatory device is driven by a transistor working in the avalanche breakdown region. The base of the transistor is earthed, the emitter connected to earth over a resistor 8 (Fig. 2, not shown) and the collector connected to a sufficiently high biasing potential 4 over a further resistor 5, the piezo-electric device 1 being connected between collector and earth. The pulses generated may be rendered of short duration by shunting the piezo-electric device with a damping resistor 11 (Figs. 3, 4, not shown) in series with a capacitor 12 which may be resonated at the working frequency with series inductance 13. The piezo-electric device may also be used for the reception of ultrasonic waves, being connected to an amplifier and output device 14 (Fig. 5, not shown) by a coaxial cable 15 terminated in its characteristic resistance 16. This may constitute the damping resistance, previously referred to: a series capacitor 17 avoids disturbance of the recharging of device 1 over resistor 5. In a modification, the piezo-electric device 1 (Fig. 6, not shown) is connected between the emitter of the transistor and earth, being replaced between collector and earth by a fixed capacitor 18. The base of the transistor is connected to the slider of a potentiometer from earth to a point of negative potential, while the terminating resistor can in this arrangement be connected directly across the cable.
Patent GB-1062889-A (GB)
Title: Improved method of preparing -a-(thieny1-2)4-hydroxy-stilbene and derivatives thereof,and products obtained thereby
IPC: C07F9/6553
Filed: 1964-10-21
Abstract: Novel compounds of Formula I <FORM:1062889/C2/1> wherein R is H, C2-C3 alkyl, aralkyl, acyl or a group of formula -CR1R2.COOH (where R1 and R2 are H or methyl) and the salts thereof with organic or inorganic bases (e.g. those wherein H of the carboxylic group is replaced by 1/2 Zn or ZnOH) or a phosphorated group -PO(OR3)(OR4) (where R3 and R4 are H, metals or aryl groups), are prepared by the action of a benzylmagnesium halide on a compound of Formula II <FORM:1062889/C2/2> wherein R7 is an unreactive R group or CH3, if necessary converting OR7 to OH by the action of an amine salt of a hydracid, and, if desired, etherifying or esterifying (including phosporylating) the OH group.  When R is to represent -CR1R2.COOH or a salt thereof, etherification is effected with an a  - halogenated ester CR1R2Hal.COO Alkyl and the ester group is thereafter hydrolysed to -COOH, which may be salified with organic or inorganic bases. Phosphorylation is effected with POCl3, POCl2 (OR3) or POCl(OR3)(OR4) with subsequent hydrolysis if necessary.  Pharmaceutical preparations. - The compounds of the invention are useful for the treatment of prostate adenomas, being administered orally, or by intramuscular injection in oily solution.
Patent GB-1392765-A (GB)
Title: Apparatus for shearing web material
IPC: B65H35/00
Filed: 1972-06-13
Abstract: 1392765 Cutting web material ADDRESSOGRAPH MULTIGRAPH CORP 13 June 1972 [14 June 1971] 43194/72 Heading B4B [Also in Division B8] A shearing means 63 comprises a manually oscillatable cylinder 66 having an interrupted periphery which forms a diagonally extending shear blade 68 for co-operating with a fixed blade 62, Fig. 6, for cutting a web fed between guide plates 57, 58, 74, 76, e.g. by resiliently yieldable feed rollers 22, 24. A pivotable guide element 80 cuts across the arcuate shear path of the blade 68 when the latter is in its inoperative position shown in Fig. 6. When the blade 68 is moved along the path towards blade 62, however, it engages a cam 90 which pivots the element 80 from the shear path. The feed rollers feed the web incrementally, the length of each feed step being adjusted by deforming the roller peripheries.
Patent GB-1475219-A (GB)
Title: S-triazine prepolymers
IPC: C08G63/91
Filed: 1975-10-24
Abstract: 1475219 s-Triazine prepolymers BAYERAG 24 Oct 1975 [3 Dec 1974 5 March 1975] 43756/75 Heading C3R In a process for the preparation of s-triazine prepolymers (a) an aliphatic, cycloaliphatic or aromatic dihydroxy or polyhydroxy compound is condensed with more than 1/3 mol of cyanuric chloride per hydroxyl group and (b) the resulting condensation product is condensed with an aromatic dihydroxy or polyhydroxy compound in such a way that more than 1 hydroxyl group equivalent of the aromatic dihydroxy or polyhydroxy compound is used per unconverted chlorine atom of the condensation product obtained from (a), and (c) thereafter, the free hydroxyl groups of the condensation product obtained from (b) are reacted with a cyanogen halide in the presence of a base. The prepolymers have free cyanate groups which enable them to be cross-linked. In examples the hydroxy compounds reacted with cyanuric chloride in step (a) are ethylene glycol, 1,6- hexanediol, 1,2 - propanediol, 2,2- bis - (4- hydroxycyclohexyl) - propane, 4,4<SP>1 </SP>- dihydroxyphenyl, 2,2 - bis - (3,5 - dimethyl - 4- hydroxyphenyl) - propane, 2,2 - bis - (3,5- dichloro - 4 - hydroxyphenyl) - propane, diethylene glycol, tetraethylene glycol and a polyester having hydroxyl groups and obtained from butane diol, ethylene glycol and adipic acid; the products are condensed in step (b) with 2,2-bis-(p-hydroxyphenyl)-propane, 1,1- bis - (4 - hydroxyphenyl) - cyclohexane, resorcinol and hydroquinone; the products are then reacted in step (c) with cyanogen chloride in the presence of triethylamine to obtain the prepolymers.
Patent GB-1026067-A (GB)
Title: Improvements in and relating to time-pieces
IPC: G04B17/32
Filed: 1964-10-28
Abstract: 1,026,067. Balance springs. ERISMANNSCHINZ S.A. Oct. 28,1964 [oct.28, 1963], No. 43932/64. Heading G3T. An arrangement for clamping the outer end of a balance-spring 5, Fig. 2 not shown, comprises a sleeve 9 fixed vertically underneath a balance cock, and inside which is revolvably carried a rod 16 the lower end having an eccentric portion 17 to clamp the end 5 between itself and the sleeve 9. The rod 16 has a screw head 18, and an inner face 14 of a recess 13 is concave, conforming to the outer shape of the balancespring. Upward movement of the rod 16 allows the end 5 to enter the recess 13 and a lowering plus rotating movement of the rod 16 clamps the end in position. The sleeve 9 is secured in the balance cock by a screw 8.
Patent GB-1484363-A (GB)
Title: Internal combustion engines
IPC: F02B19/10
Filed: 1974-10-10
Abstract: 1484363 Pre-combustion chambers HONDA GIKEN KOGYO KK 10 Oct 1974 [11 Oct 1973] 43975/74 Heading F1B A spark-ignition I.C. engine comprises a precombustion chamber 21, Fig. 1, enclosed by a thin-wall stainless steel cup 22 and receiving a rich mixture from an auxiliary carburetter via an auxiliary intake valve 34. A residual-gas chamber 41 communicating with the chamber 21 via a restricted opening 43 contains the spark-plug electrodes 47 which are located near the opening 43 and remote from the end-wall 48 of the chamber 41. At the end of the exhaust stroke, residual exhaust gases remain in the main combustion chamber 16 and in the chambers 21, 41. During the subsequent induction stroke, lean mixture is admitted into the main chamber 16 and rich mixture is admitted into the chamber 21, fills it, and is drawn through flame passage 29 into the main chamber, where it forms a region of relatively rich mixture encompassed within a larger region of relatively lean mixture to provide a stratified charge. Little change occurs in the residual-gas chamber 41. During the compression stroke, the increase in pressure in the main chamber 16 causes reverse flow through the flame passage 29 and through the restricted opening 43, whereby the mixture in the chamber 21 becomes less rich and the residual-gas chamber contains a compressed mixture of air, fuel and residual exhaust gases, the concentration of residual gases being greatest near the end-wall 48. On ignition, a first flame jet carrying both burning and residual gases is projected from the residual-gas chamber 41 through the opening 43 to ignite the rich mixture in the chamber 21, producing high turbulence. A second flame jet is then projected through the flame passage 29 to ignite the stratified charge in the  main chamber 16 and so ignite the main body of lean mixture in the main chamber. The axis of the opening 43 is out of alignment with the axis of the passage 29 so that the first flame jet does not pass directly through the passage, the electrodes 47 are not fouled by direct inpingement of a rich mixture jet during the compression stroke, and turbulence in the chamber 41 is minimized. The residual-gas chamber may have a thin-wall stainless steel liner which is surrounded by a clearance space which minimizes heat transfer so that the liner is kept hot. An existing type of stratified-charge engine may be modified by providing a member which screws at one end into the spark-plug hole and is hollow so as to constitute the residual-gas chamber, a special spark-plug screwed into the other end having long electrodes so as to bring the spark gap near the opening 43. The volume of the residual-gas chamber may be raised by means of a plug 83, Fig. 6, which is slidable within a bore by means of a rotatable sleeve 88 via a cam slot and pin arrangement 86. An actuator arm 89 is linked to the throttle pedal or to a diaphragm operated by the intake manifold vacuum.
Patent GB-1512130-A (GB)
Title: Cephalosporin derivatives
IPC: C07D333/24
Filed: 1976-10-25
Abstract: 1512130 Cephalosporins YEDA RESEARCH & DEVELOPMENT CO Ltd 25 Oct 1976 [24 Oct 1975] 44186/76 Heading C2C The invention comprises novel compounds wherein either Aryl is a benzene ring, Y is hydrogen, chlorine, bromine, or alkyl or nalkoxy of from 1 to 4 carbon atoms, Z is a bond, oxygen, sulfur or imino, or Aryl is a thiophen ring attached to Z at its 2-position, Y is hydrogen and Z is a bond; W is hydrogen, methyl, amino, hydroxy, SO 3 H, or COOR 1  wherein R 1  is hydrogen, or 5-indanyl; n is zero, 1 or 2 with the proviso that it is not zero when W is not hydrogen or methyl, and Z is not a bond; R 2  is hydrogen or methoxy and is either cis or trans; Q is O<SP>#</SP> or OM wherein M is -CH 2 -O-COR 5  wherein R 3  is alkyl of from 1 to 4 carbon atoms, -CH 2 -NR 5 -COR 4  wherein R 4  is alkyl or alkoxy of from 1 to 4 carbon atoms and R 5  is hydrogen or n-alkyl of from 1 to 4 carbon atoms, wherein R 6  is alkyl of from 1 to 4 carbon atoms, wherein m is 0 to 5, each of R 7  and R 8  is hydrogen or n-alkyl of from 1 to 4 carbon atoms, and each of R 9  and R 10  is hydrogen or alkyl of from 1 to 4, carbon atoms with the proviso that when Q is OM the compound exists as a salt of a pharmaceutically acceptable inorganic or organic acid; X is hydrogen, acetoxy, 1,3,4- thiadiazol - 5 - ylthio, 3 - methyl - 1,2,4 - thiadiazol - 5 - ylthio, tetrazol - 5 - ylthio, 1- methyltetrazol - 5 - ylthio, 2 - methyl - 1,3,4- oxadiazol - 5 - ylthio, 2 - methyl - 1,3,4 - thiadiazol - 5 - ylthio and 1,2,3 - triazol - 5 - ylthio; or a pharmaceutically acceptable salts thereof. They are made by reacting compounds (II) with pyridine, by interacting compounds (III) and (IV), and by reacting (I), where x is acetoxy, with an appropriate heterocyclic-thiol; W<SP>2</SP> is H, Me, NH 2 , OH, SO 3 H or CO 2 H. Antibacterial compositions contain (I) as active ingredient. Administration is orally or parenterally.
Patent GB-1472409-A (GB)
Title: Methods and compositions for cleaning plastics articles
IPC: G02C7/04
Filed: 1974-10-11
Abstract: 1472409 Cleaning contact lenses FLOW PHARMACEUTICALS Inc 11 Oct 1974 [12 Oct 1973] 44257/74 Heading C5D [Also in Division G2] A method of cleaning a plastics article, e.g. a contact lens, comprises contacting the article with an aqueous solution containing an active oxygen yielding per compound, the solution being either acidic or basic, removing the article from the solution, contacting it with a non-ionic detergent and rinsing with water. Preferably the article is immersed successively in two aqueous solutions of the per compound, one being acidic and the other basic, and then treated with the detergent. The per compound may be selected from hydrogen or urea peroxide, and alkali metal perborates, percarbonates, perphosphates, persulphates, and peroxides. The or each of said two aqueous solutions may contain a chelating agent, e.g. ethylene diamine tetra-acetic acid, nitrilo triacetic acid, diethylene triamine penta-acetic acid, hydroxyethylethylene diamine triacetic acid, 1,2-diaminocyclohexane tetra-acetic acid, amino diacetic acid, or hydroxethyl amino diacetic acid, or an alkali metal or other salt thereof, especially the di-, tri-, or tetra-sodium salt of ethylene diamine tetra-acetic acid. An alkali metal citrate or polyphosphate may also be used as a chelating agent. The non-ionic detergent may comprise a poly(oxyethylene) - polyoxypropylene block copolymer, a germicide, and sodium chloride, as described in Specification 1,435,114. A hydrophilic gel plastics lens may be alternately expanded and contracted to remove dirt therefrom by treatment with hypotonic and hypertonic solutions as described in Specification 1,472,410.
Patent GB-1526224-A (GB)
Title: Gas turbine engine cowls
IPC: F02K1/64
Filed: 1975-10-28
Abstract: 1526224 Cowl latch ROLLS ROYCE Ltd 26 Oct 1976 [28 Oct 1975] 44400/75 Heading E2A [Also in Division B7] A gas-turbine engine thrust reverser has a latch arrangement for fastening a translatable cowl part in its inoperative position. The latch arrangement includes a yoke-shaped latch 26 pivotally mounted on fixed structure, a nut 36 of a screw and nut mechanism 38 connected to the translatable cowl part, and an abutment 28 integral with a rotatable tube 30. The nut has a roller 34 which is located in a slot 32 and rotation of the tube to release the yoke from abutment 28 for it to engage nut 36 is effected by the engagement of the roller with a cam portion 40 of the slot when the nut approaches the end of its travel.
Patent GB-1064782-A (GB)
Title: Improvements relating to disc harrows
IPC: A01B21/08
Filed: 1963-10-11
Abstract: The subject matter of this Specification is the same as that of Specification 1,064,781 but the claims differ.
Patent GB-1132550-A (GB)
Title: Improvements in or relating to burners
IPC: F23D14/00
Filed: 1967-09-29
Abstract: 1,132,550. Burners. MAX WEISHAUPT G.m.b.H. 29 Sept., 1967 [3 Oct., 1966], No. 44548/67. Heading F4T. A gas burner has an outer pipe 1, an inner pipe 2 through which gas is supplied, the latter having a closed end 3 associated with a projecting part 4 of less diameter which passes through the central aperture 7 of an axially slidable air swirler 9, gas outlets 5 being provided in pipe 2 and masked by a sleeve 6 secured to the pipe by a disc having apertures 17 for air.
Patent GB-1101691-A (GB)
Title: Apparatus for use in chamfering tubes
IPC: B23B5/16
Filed: 1965-10-21
Abstract: 1,101,691. Machine tool details. W. A. DOUGLAS and A. DOUGLAS. 25 Nov., 1966 [21 Oct., 1965], No. 44634/65. Headings B3C and B3T. A device of chamfering the end of a tube 10 comprises a motor-driven shaft 14, Figs. 3 and 4, a pair of removable collars 15, 16 for centering the tube, a cutter 27 keyed to shaft 14, a clamp 33 for holding the tube, and means 31, 29 for feeding the cutter and collar 16 against a spring 21, so as to produce outside and inside chamfers on the tube. Collar 15 comprises a split ring 17, an inner sleeve 18 rotatably mounted on shaft 14, and a nut 20 screwed on to the sleeve. Collar 16 has cutting teeth 26 for forming the inner chamfer, and the feed means 31, 29 consists of a face cam actuated by a handle 30. Clamp 33 has jaws 34, 35 which can be adjusted for size by screws 36, and tightened by a bolt 38. In a modification, cam 31, 29 is replaced by a screw and nut.
Patent GB-1069925-A (GB)
Title: Improvements in voltage regulators
IPC: H02P9/38
Filed: 1964-11-03
Abstract: 1,069,925. Automatic voltage control. GENERAL ELECTRIC CO. Nov. 3, 1964 [Nov 20 1963], No. 44705/64. Heading G3R. The output voltage of an alternator 10 is mainrained constant by a regulating circuit comprising a thyristor 44 which is controlled to supply energizing current to the field winding 12 of the alternator in dependence upon output voltage variations as detected by a voltage divider 20, 22, the firing circuit for the thyristor including a reference Zener diode 28, a transistor 34, associated with a capacitor 40 and having its base connected to the voltage divider 20, 22, and a unijunction transistor 36 which controls the firing of thyristor 44. In operation, any difference between the reference voltage derived from Zener diode 28 and the voltage on divider 20, 22 renders the transistor 34 conductive so that the capacitor 40 can charge up to the Zener diode voltage; transistor 36 is then rendered conductive by the voltage on capacitor 40 which discharges into the gate of thyristor 44 to render the latter conductive and thus increase the excitation current. The transistor 34 is made conducting at an earlier time in the cycle as the difference between the sensed voltage and the reference voltage increases so that capacitor 40 is charged sooner in these conditions, thyristor 44 then being fired at an earlier time in the cycle. The field current is thus automatically varied so that the output voltage is maintained at a predetermined value. Several modified arrangements for the connection of the sensing circuit to the alternator output are described Figs. 2 to 9 (not shown), and an arrangement to ensure build-up of voltage when the output voltage is at a very low level is described with reference to Fig. 10 (not shown).
Patent GB-1003548-A (GB)
Title: Improvements in or relating to bucket excavators
IPC: E02F3/47
Filed: 1963-11-13
Abstract: 1,003,548. Shovelling machines. E.L.S.E.- S.r.L. Nov. 13, 1963 [Nov. 23, 1962], No. 44910/63. Heading E1F. A bucket excavator substantially as described and shown in Specification 862039 is modified in that a double-acting hydraulic jack 6 controlled by a manually-operable distributer 18 is fixed to the frame 4 and supports the guide 1 by means of a first removable pin 9 inserted through holes 7, 8 in the jack rod and guide, whereby the guide may be displaced upwardly or downwardly. The holes 8 are an axial distance apart not greater than the stroke of the jack, and when it is necessary to lower the effective stroke of the guide and bucket a second removable pin 9 is inserted into holes 8 just above a lower pair of arms 5 on the frame to support the guide temporarily while the first pin is removed and the jack rod is raised until the hole 7 registers with the next hole 8 above, and the first pin is reinserted. Corresponding projections on a hook 10 and the guide 1 engage during the downward stroke to prevent upward movement of the slide 2 and act against the force exerted by the rope 13, and disengage during the upward stroke to permit free ascent of the slide and bucket. Specification 862,039 is referred to.
Patent GB-1207664-A (GB)
Title: Improvements in or relating to devices for controlling the movement of an inked ribbon in printing mechanisms
IPC: B41J33/516
Filed: 1967-10-04
Abstract: 1,207,664. Typewriters &c. ANKERWERKE A.G. 4 Oct., 1967 [5 Oct., 1966], No. 45267/67. Heading B6F. Ribbon reversing mechanism.-A ribbon reversing mechanism comprises, two spools each driven by their own thrust pawl 50, 50<SP>1</SP>, and deflectible detector levers 7, 71 situated in the path of the ribbon so that when the tension of the ribbon indicates a reverse drive is necessary the alternate pawl is moved into operative position by a mechanism operated from the power of a frame 19 actuated by the typing mechanism. The detector lever 7, when it is moved clockwise, Fig. 6, by the tensioned ribbon, indicates that the left hand spool has been fully wound by the operation of thrust pawl 50<SP>1</SP>. During this period the other pawl 50 is held clear of its ratchet by a lug 28a of a control lever 28. The detector lever 7 pivots clockwise against bias of spring 30. A lug 14 on the lever 7 bears on a projection 16b of a push-rod 16 which is interconnected by a member 17 to a second push rod 16<SP>1</SP>. Action of ribbon tensioning on the lever 7 effects counter-clockwise movement of the member 17 which causes the second push rod 16<SP>1</SP> to move into the path of the reciprocating typing mechanism. In this state the reversing mechanism is engaged and operates at next typing action. A rocker 21, Fig. 4, is operated by the push rod 16 or 16<SP>1</SP> and a sliding bridge 23 is shifted by a nose 22 on the rocker 21. Locking levers 26, 26<SP>1</SP> are actuated which lock one detector lever 7 and free the other for subsequent operation. Control levers 28, 28<SP>1</SP> are also operated which effect positioning of the thrust pawls. Guides.-The ribbon is guided by a pair of stationary guides 9, Fig. 2, to which are hinged spring biased guide elements 11.
Patent GB-977045-A (GB)
Title: Means for operating and indexing an intermittently rotatable worktable
IPC: F16H35/00
Filed: 1962-11-30
Abstract: <PICT:0977045/C1/1> <PICT:0977045/C1/2> <PICT:0977045/C1/3> In a drilling, milling, tapping, stamping or pressing machine, or a plastic, glass or ceramic moulding or forming machine, means for indexing a rotatable worktable 3 comprise an hydraulic ram 21 to move the table angularly in one direction only, a set of abutments adjustable to vary the stroke of the ram and a set of selectable masking devices 31a, 31b to determine which of a series of holes 25 in the table should be engaged by an indexing plunger 24. The table 3 carries a table top 1, having workholders 2 thereon, and is supported on bearings 4, 5 on a shaft 6 and by a ring of balls 9, running in annular grooves.  Initially, the appropriate abutment, e.g. 40c, is set by rotating a disc 39 mounted on a block 17 attached to the ram, a corresponding masking plate 31b is moved aside by a handle 32, and the spring-pressed indexing plunger is depressed by a plate 28 on a piston 29. The plate engages a projection 27 on the plunger and moves it to below the level of the plates 31. When the ram is actuated, the block 17 moves a chain 12 running round pulleys 13, 14, 22 to rotate an arm 23 carrying the plunger 24 which is moved upwardly by its spring as soon as it reaches the position of the plate 31b. Towards the end of the return indexing movement, the ram movement is slowed down by a throttle valve 46 operated by a rod 43 which may also operate a reversing valve.  In the indexed position, the table is locked by a detent 34 operated by a piston 36.  Index-timing mechanism as in Specification 943,894 may be provided.