baber/WOPTO huggingface dataset:
Patent GB-1281528-A (GB)
Title: Treatment of surfaces
Inventor: UFFINDELL NORMAN DAVID
IPC: G03C1/93
Filed: 1968-11-08
Abstract: 1281528 Treating hydrophobic polymers KODAK Ltd 7 Nov 1969 [8 Nov 1968] 53059/68 Heading C3P [Also in Division G2] Hydrophobic polymer surfaces are treated by coating with a tribromomethyl quinoline compound capable of forming free radicals on irradiation and containing at least one hydrophilic group, and thereafter irradiating the coated surface with ultra violet radiation to effect grafting of the hydrophilic group to the surface. Specified polymers are polyethylene, polypropylene, polymethylpentene and polystyrene. The radical formers may be applied in organic solvent solution and irradiated with U.V. light before or after drying. The polymer may be in the form of a bottle, film, laminate or coated paper, e.g. for photographic elements. Many suitable tribromomethylated quinolines are specified and examples describe the treatment of polyethylene coated paper with (1 and 2) 5,6-dihydro-6-diazo-2-tribromomethyl quinoline-5-one; (1) 5,6-dihydro-6-diazo-8-methyl-2- tribromomethyl quinoline-5-one; (3) 6-acetamido-2-tribromomethyl quinoline; and (4) 5- bromo - 6 - diazonium fluoborate - 2 - tribromomethyl quinoline; followed by irradiation with U.V. light.
Patent GB-1495531-A (GB)
Title: 11beta-alkyl steroids of the estrane series
IPC: C07J1/00
Filed: 1974-12-10
Abstract: 1495531 3 - Unsubstituted - 11 - alkylestrane compounds AKZO NV 10 Dec 1974 [19 Dec 1973] 53306/74 Heading C2U Novel steroids of the estrane series having the formula wherein R 1  and R 2  are each C 1-4  alkyl but not t-butyl, R 3  is =O or (α-X)(#-Y) in which X is H or alkyl, alkenyl, alkynyl, alkadienyl, alkadiynyl or alkenynyl of at most 4 carbon atoms and Y is a free, esterified or etherified hydroxyl group, and there is a #<SP>5</SP>-, #<SP>5(10)</SP>- or A<SP>4</SP>-double bond present are prepared from steroids of the formula wherein there is a #<SP>9(11)</SP> or #<SP>11</SP> double bond or an external double bond from the 11-position, X is (R 5 )(R 6 ) in the latter case and (H)(R 5 )(R 6 ) in the former, in which R 5  and R 6  are each H or C 1-3  alkyl and together contain at most 3 C atoms and either ring A is aromatic and contains a free, esterified or etherified hydroxy group at the 3-position or it is of the same structure as in the products, i.e. contains a #<SP>4</SP>- or #<SP>5(10)</SP>-double bond or is saturated and accompanied by a #<SP>5</SP>-double bond, but optionally also contains in the 3-position a free or protected oxo group, a free, esterified or etherified hydroxy group, a halogen atom or a hydrocarbon sulphonyloxy group. These steroids are catalytically hydrogenated; the aromatic A ring, if present, is reductively converted to a ring containing a 3-oxo-#<SP>4</SP> or 3-oxo-#<SP>5(10)</SP> grouping using Birch reduction and hydrolysis of the #<SP>2,5(10)</SP>-3-enolate formed; a 3-oxo-#<SP>4</SP> grouping, if desired, is converted via the 3-enol acylate and a reduction of the #<SP>3</SP>-double and a hydrolysis of the 3-acyloxy group to a 3- hydroxy-#<SP>5</SP> grouping; and any group present or still present at position-3 is removed by known methods, e.g. a 3-keto group is removed via a 3-ethylene dithio ketal, and a 3#-hydroxy group via a 3#-chloro compound. Groups in the 17-position may be introduced and interconverted by standard procedures; in one such procedure an intermediate is 11#,18-dimethyl- 17α - 3<SP>1</SP> - (1<SP>11</SP> - ethoxy - ethoxy) - prop - 1<SP>1</SP>- ynyl - #<SP>4</SP> - estren - 17# - ol, and, in another, intermediates are 11# - methyl - 17α - acetyl- #<SP>4</SP> - estren - 17# - ol and its 17# - trimethylsilyl ether, and- 11# - methyl - 17α - isopropenyl- #<SP>4</SP> - estren - 17# - ol 17# - trimethylsilyl ether. The novel steroids have various steroid hormonal properties and they may be made up into pharmaceutical compositions with suitable carriers. Specification 1,455,270 is referred to.
Patent GB-1481829-A (GB)
Title: Lift truck with side and front tiltable mast assembly
IPC: B66F9/08
Filed: 1974-12-10
Abstract: 1481829 Masted lift trucks; mobile elevators CLARK EQUIPMENT CO 10 Dec 1974 [12 Dec 1973] 53405/74 Headings B8H and B8L A lift truck 10 includes a telescopic mast assembly 16 which is mounted on a shaft 24 connected by split trunnions 26 to frame members 28 which extend longitudinally of the truck 10, the outer mast sections 18 of the mast assembly 16 being each connected to a universal bearing 34 which is mounted on the shaft 24, each mast section 18 being connected by a respective spherical bearing 51, 57 to the piston rod of a respective tilt ram 47, 56 whose cylinder end is connected by a respective spherical bearing assembly 52, 58 to the tank body, so that extension and retraction of the rams 47, 56 causes arcuate movement of the mast assembly 16 on the universal bearings 34 relative to the truck 10. The bearings 34 also permit arcuate movement of the mast assembly 16 transversely of the truck 10 from the position shown in Fig. 1 to that shown in Fig. 2 (not shown), since one outer mast section 18 is connected by a plate 45 to the outer race of the adjacent bearing 34 while the other outer mast section 18 is connected to the other bearing 34 by means of an L-shaped plate 53 whose vertical limb is slidably located in a short channel 70 attached to the said other mast section 18, the horizontal limb of the plate 53 being mounted on the outer race of the other bearing 34 and extending through a cutout section (71) in the channel 70, Fig. 5 (not shown), which allows movement of the plate 53 relative to the channel 70. The base of a double acting sidetilt ram 72 is pivotally mounted on a doublesided bracket 74 secured to the horizontal limb of the plate 53 while its rod end is pivotally attached to the adjacent outer mast section 18. Extension and retraction of the ram 72 causes movement of the mast assembly 16 and short channel 70 transversely of the truck 10 about the bearings 34, the vertical limb of the plate 53 sliding in the channel 70. The rams 47, 56 tilt along with the mast assembly 16 during such transverse movement of the latter. A double-acting ram 90 is connected by brackets 92 to the shaft 24, its piston rod ends 96 being attached to either side of the mast assembly 16 so that actuation of the piston rod causes side movement of the mast assembly 16 relative to the shaft 24 and thus relative to the truck 10.
Patent GB-1536564-A (GB)
Title: Multi station telephone switching systems
IPC: H04Q3/58
Filed: 1975-12-15
Abstract: 1536564 Key telephone systems INTERCONNECT PLANNING CORP 15 Dec 1975 [27 Dec 1974] 53625/76 Divided out of 1536563 Heading H4K A master station is provided in a key telephone system for monitoring the interconnection of a plurality of stations with a plurality of exchange lines. The system is of the type wherein each station including the master station has a non- locking push-button for each of the exchange lines and every station is provided with a display for indicating which stations are involved in connections in particular exchange lines. The master station is able to communicate with any of the stations over an intercom. Each station, Fig. 2, includes a non-locking push-button 20-1 to 20-n for each of the exchange lines and in known manner depression of a line button 20 at any station causes the corresponding line button to be illuminated at each station. In addition, each station has a display 36 including a position 36-1 to 36-n for each of the other stations. When, for example, station 1 selects exchange line 26, the figure 26 is displayed in location 1 at each station as shown. All stations except the master station have a request button 60. If, during a main exchange connection, the station requires assistance, button 60 is depressed to cause the line number to flash in the station's display location at the master station. A call-back button at the master station is then depressed to connect the master station with the requesting station in such a way that the station can intercommunicate with both the master station and the remote subscriber without the remote subscriber hearing what the person at the master station is saying (Fig. 5, not shown). Fig. 4 illustrates an arrangement whereby each station may only access one exchange line at a time. Depression of a push-button causes a line relay to operate via the button contact resistor 72 and transistor 74. When the button is released the voltage across Zener diode 80 increases and on the breakdown of the diode 80 transistor 82 is forward biased to provide a holding path for the relay. Depression of a second button operates a second relay but the potential across Zener diode 80 falls to cut off the diode and to back bias transistor 82 thereby releasing any previously operated relay. The release of the second button causes the corresponding relay to be held via transistor 82. Conferences.-More than one exchange line can be accessed by depressing a conference button prior to the depression of a second exchange line button, thereby preventing the release of the first relay.
Patent GB-1523520-A (GB)
Title: Electric ducts
IPC: H02G3/38
Filed: 1976-12-29
Abstract: 1523520 Electric ducts TECHNILEC 29 Dec 1976 [31 Dec 1975] 54257/76 Headings H2E and H2C An electric duct for locating insulated wires along a wall, comprises a movable cover 1 having spaced junction positions 5 provided with apertures 6 for the passage of contact spikes which in use piece the insulation of the wires to effect electrical contact. Channels 8 are provided on a wall of the cover 1 for holding and guiding the wires, a co-operating element 10 having protuberances 11 being provided for securing the wires in the channels 8.  As described there is further provided a fixed element, which corresponds to the base of a conventional duct, which may be a section 16 fixed to the wall, as shown, a groove formed in a wall (Figs. 5 and 9, not shown), or a wall face (Figs. 6-8, not shown). The element 10 may be integral with the cover, as shown, or separate therefrom.
Patent GB-1288310-A (GB)
IPC: E05C19/02
Filed: 1970-11-17
Abstract: 1288310 Latches COMPAGNIE INDUSTRIELLE DE MECANISMES 17 Nov 1970 [28 Nov 1969] 54556/70 Addition to 1186709; 1237494 Heading E2A A rotary latch bolt 83 is provided with two engaging points, viz a nose 84 and a roller 88, to provide the safety and full latching, respectively, of the nose 76 of a striking plate 79. The bolt is biased to the fastening position by spring 85 and the roller is carried on a spiral spring arm 90. The bolt may be turned to the releasing position through a projecting pin 87 which also acts in slot 86 to limit its movement. All parts may be of plastics and a tongue 71 loaded by a rubber spring 72 engages a flange 73 of the door frame to prevent rattle. (For Figures see next page)
Patent GB-1136780-A (GB)
Title: Electropneumatic gear switching arrangements
Inventor: WIEDEMANN WOLFGANG
IPC: F16H63/30
Filed: 1966-12-08
Abstract: 1,136,780. Change-speed control. KRAFTFAHRZEUGWERK ERNST GRUBE VEB. 8 Dec., 1966, No. 54902/66. Heading F2D. A control system for a vehicle transmission comprising main and auxiliary change-speed gear units comprises a relay with a coil connected directly to a switch, a first contact which, when the main gear is engaged, conditions a circuit for energizing a first electropneumatic valve for engaging the auxiliary gear, and a second contact which, when the main gear is in neutral, conditions a circuit for energizing a second electromagnetic valve for disengaging the auxiliary gear. In the arrangement shown with an overdrive unit 2 following the main gear unit 1, the coil 10 of the relay 9 is connected to a switch 4 on the gear change lever 3, and relay contacts 16, 20 are connected to solenoid valves 5, 6. The system also includes a shift operated switch 7 and cam 8, auxiliary manual switches 18, 23, a signal lamp 26, and a switch 28 operated by the clutch pedal 27. To bring in the overdrive with the main gear engaged, clutch pedal 27 is depressed to close switch 28 and earth valve 5, and auxiliary switch 18 is momentarily closed to operate valve 6 and engage the overdrive unit 2. At the same time switch 7 is operated by cam 8 to light signal lamp 26. To disengage overdrive without changing the ratio of the main gear the clutch pedal 27 is operated to close switch 28 and earth valve 6, and switch 23 is then operated. so that valve 5 cuts out the overdrive, and switch 7 is opened to extinguish the lamp 26. Upshift of the main gear with disengagement of overdrive may be effected by a normal gear change using the pedal 27 and hand lever 3. In a modified arrangement, Fig. 3 (not shown), the switch 4 is mounted on the main gear housing and actuated by a cam on the shaft of the direct drive train, so that overdrive can only be engaged when direct drive is operative.
Patent GB-1099876-A (GB)
Title: Pressure sensor
IPC: G01L7/00
Filed: 1965-12-31
Abstract: 1,099,876. Measuring pressure electrically. BENDIX CORPORATION. Dec. 31, 1965 [Jan. 4, 1965], No. 55345/65. Heading G1N. An erroneous pressure measurement obtained from capsules 22, 24 is corrected by means of a calibration cam 60 and may also be corrected as a function of Mach. number. In the basic system, rotation of rocking shaft 18 due to pressure variations is transmitted by geneva gear mechanism 36 to a pick-off 42, the output of which drives servomotor 43 and, through gearing 67, 69, 72, 54, rotates shaft 55 to move nut 62. The position of nut 62 is corrected by cam follower 64, the final position of nut 62 being that at which rotation of shaft 17 and frame 21 is sufficient to restore shaft 18 to its initial position. Altitude signals may be derived in analogue form from transmitters 73, 74 or in digital form from shaftangle encoder 76. As shown, the altitude may be further compensated for Mach. number using a differential pressure capsule 81 in conjunction with a follower link 89, a cam 88 positioned by shaft 19 in accordance with true static pressure, and a pin 91 sliding in forked member 90. Shaft 85 is thus rotated as a function of Mach. number and rotates cam-shaft 92 similarly. Cam 97 on shaft 92 adjusts arm 98 in the required manner, the arm being pivoted on a shaft 100 attached to geneva locking disc 41 and rotating shaft 18 by means of pin 102 and member 101. Such rotation of shaft 18 is nullified as before. It is stated that pressure defect cam 97 may be rotated as a function of pressure functions other than Mach. number. It is also stated that the basic system may be used to compute true impact pressure as well as true static pressure, whereby the system can measure altitude of high performance aircraft. Bi-metallic elements 29, 30 correct for temperature variations.
Patent GB-1379048-A (GB)
Title: Elapsed time computer
IPC: G07C1/02
Filed: 1971-12-02
Abstract: 1379048 Workman's time recorders A S GOODRICH Jnr 2 Dec 1971 56109/71 Heading G4T To determine elapsed time between first and second instants, a member (cylinder 300 or 310) having discrete surface irregularities (projections 301, Fig. 9A) is indexed in accordance with time, the particular irregularity that is proximate to a predetermined fixed region (304, Fig. 9A) at the first instant is identified, the indexing is halted at the second instant and the member is moved in the direction reverse to that of indexing back to its first instant position, this reverse movement being proportional to the elapsed time and being used to set a printer therefor. In the preferred embodiment for workmen's time recording, the particular irregularity is identified at the first instant (clocking-on time) by pins (only two 400, 401 of ten shown in Fig. 12) which. punch a workman's time card (not shown) in slot 28 accordingly, when assembly 30 is moved towards cylinders 300, 310. A stripper bar 328 ensures withdrawal of operative punching pins from the card upon return movement of assembly 30. At the second instant (clocking-off time) the holes punched at the first instant are sensed by pins 420, 421 (only two of ten shown). The sensing pins corresponding to the punched holes pass through the time card to depress corresponding punching pins 400, 401 &c. so that their lower ends are located below an upper level 302 (Fig. 9A) but above a lower level 303 of the projections 301. Abutment of an upper level 302 with a depressed punching pin halts the reverse rotation of the cylinders 300, 310, representing hours and decimal fractions of an hour respectively. The cylinders are indexed between the first and second instants by pawls, Figs. 16, 17 (not shown) acting on ratchet wheels 450, 451. These ratchet wheels are coupled to their respective cylinders through springs 132, which permit the reverse rotation of the cylinders relative to the ratchet wheels. The reverse rotation is imparted via a slipping clutch (not shown) and gears 489A and 489B to the cylinders, which in turn drive respective print sectors 436, 437. The coupling between the sectors and cylinders is such that the former are not moved when the latter are indexed forwards between the first and second instants. The time card, Figs. 2A-2D (not shown), is driven into slot 28 by inclined drive rolls, Figs. 1 and 7 (not shown), which urge the card against one side wall of the slot. The time card is intended for repeated use, and a punch, sensors and adjustable stops, Figs. 8 and 10 (not shown), are provided to ensure that for each use of the card, printing occurs on the next unused space on the card.
Patent GB-1206799-A (GB)
Title: Improvements in or relating to thrust rolling bearings
IPC: F16C19/30
Filed: 1967-12-11
Abstract: 1,206,799. Bearings. NADELLA S.A., and A. PITNER. 11 Dec., 1967 [28 Dec., 1966], No. 56155/67. Heading F2A. A roller thrust bearing has two annular raceway plates 1, 2, Fig. 2, with rollers 3 and a cage 11 positioned therebetween. The bearing is mounted between members A and B so that an inner portion 1a of the plate 1 is engaged by the member A and an outer portion 2b of the plate 2 is engaged by the member B. When an axial load is applied, the plates are deformed and assume a conical shape while remaining substantially in contact with the rollers 3. The cage 11 is provided with end portions 13, 13; an offset centre portion 15, the latter having a lug 16, Fig. 3, which retains the rollers in the cage before assembly of the bearing; and bars 12 which interconnect the end and centre portions. A collar 17, attached to the plate 2, retains the cage 11 axially and radially relative to the plate 2. The bearing may be provided with a modified cage as shown in Fig. 4.
Patent GB-1212872-A (GB)
Title: Frequency multiplier transistor oscillator
IPC: H03B19/14
Filed: 1967-12-14
Abstract: 1,212,872. Transistor oscillator-multiplier. NIPPON ELECTRIC CO. Ltd. 14 Dec., 1967 [15 Dec., 1966], No. 56880/67. Heading H3T. In a frequency multiplier transistor oscillator having a transistor 1 and its associated tuning circuit of relatively low Q generating a fundamental frequency, the fundamental frequency is multiplied by the non-linear junction capacitance between the base and collector of the transistor which serves as a variable capacitance diode, and the Nth harmonic of the fundamental frequency is derived from a Nth harmonic resonator 7 of relatively high Q such that the fundamental frequency is maintained about 1/N of the frequency of the Nth harmonic resonator 7. In the Colpitts oscillator shown the capacitors 2 and 3 and inductor 5 may not be required at high frequencies when the stray capacitances between the collector-emitter and emitter-base and inductance of the leads are sufficient. The oscillator may be a Hartley circuit, a collector tuned circuit or a base tuned circuit. The Nth harmonic resonator 7 may be a lumped constant element or a distributed constant element such as a cavity resonator or coaxial resonator. In an equivalent circuit of the oscillator (Fig. 2, not shown), the resonator 7 is shown as a series inductor (28) and capacitor (27). In a further equivalent circuit (Fig. 3, not shown), the resonator 7 is represented by a resistor (39) an inductor (38) and a capacitor (37) connected to the input side of the multiplying circuit. Phase changes in the oscillating current flowing back to the emitter of the transistor (31) due to a change of parameters of the transistor due to variation of the power supply are compensated for by the resistor (39), inductor (38) and capacitor (37) of the equivalent circuit of the resonator 7. The high effective Q of the Nth harmonic resonator 7 may be obtained by loose coupling between its input and output such that the oscillating frequency is stabilized (curve A, Fig. 4, not shown). Variation of the capacitor 4 alters the fundamental oscillating frequency of the transistor 1 (curve C, Fig. 5, not shown), and the action of the resonator 7 is effectively to pull the oscillating frequency to a stable value (curve D). The output frequency may be the second harmonic and when the resonator 7 has an effective Q of 1500 the temperature characteristic of the oscillating frequency is related to the temperature co-efficient of the material of the resonator. Specification 1,031,399 is referred to.
Patent GB-1305167-A (GB)
IPC: C23D5/00
Filed: 1971-12-08
Abstract: 1305167 Feeding sheets ETABS J J CARNAUD & FORGES DE BASSEINDRE 8 Dec 1971 [29 March 1970] 57005/71 Heading B8R A sheet feeding cylinder, e.g. for feeding tin plate to a coating, varnishing or printing machine, has an axially extending cavity 13 housing a main shaft 14 rockable about its axis by control means located beyond an end of the cylinder e.g. by a cam and follower mechanism 18, at least one stop 30 and at least one gripper 35 being secured to an auxiliary shaft 20 parallel to the main shaft and housed in said cavity the auxiliary shaft being rocked by linkage 24, 25, 26 connecting it to the main shaft so as to move the stop and gripper into a sheet feed path such that a sheet fed to the cylinder along the path is registered thereby. Two grippers may be provided for each stop, the latter being adjustably mounted. Lever 24 may be longer than lever 25 so that shaft 20 rocks more than shaft 14. In operation, a sheet 41 is pushed against two stops 30 by a push rod 42 when the stops and grippers are raised from the periphery of the cylinder by the cam and follower mechanism and linkage, the stops, with the sheet in engagement therewith, being lowered again as the cylinder continues to rotate. The registered sheet is ultimately gripped between the grippers and stops.
Patent GB-1361758-A (GB)
Title: Clutches having self contained pumps
IPC: F16D13/72
Filed: 1972-12-11
Abstract: 1361758 Friction clutches; clutch-brake combinations LIPE-ROLLWAY CORP 11 Dec. 1972 [15 Dec 1971] 57072/72 Headings F2C and F2L In a friction clutch wherein driven discs 46 are clamped between a driving flywheel 9 and a presser plate by springs 5 and are released by axial movement of a non-rotatable clutch release sleeve 14 which acts through a thrust bearing 17 on the inner ends of radial release levers 6, the clutch is cooled by oil supplied thereto from a pump 2 surrounding the sleeve 14 and having a non-rotatable pump casing 19 and a rotor 31 which is connected through a sleeve 29 and disc 28 to the driving flywheel 9. The pump 2 supplies oil through a bore 38 in the sleeve 14 and ducts 39, 40 formed in the interior surface of the sleeve 14 to a conical tube 42 which directs the oil to an annular recess 44 in the driven disc hub 45. The oil flows from the recess 44 through axial bores 47 and radial bores 48 to the clutch discs 46. The pump 2 draws oil from a sump 25 through a tube 24 which prevents rotation of the pump housing 19. A spring 18 maintains the clutch release bearing 17 in contact with the inner ends of the clutch release levers 6 during clutch engagement. A driven shaft brake 7 is provided.